a68a5d7354a18f7ed123859f0dda0c05550be35b
[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-libnpp enable NVIDIA Performance Primitives-based code [no]
199 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
200 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
201 --enable-libopencv enable video filtering via libopencv [no]
202 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
203 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
204 --enable-libopus enable Opus de/encoding via libopus [no]
205 --enable-libpulse enable Pulseaudio input via libpulse [no]
206 --enable-librtmp enable RTMP[E] support via librtmp [no]
207 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208 --enable-libsnappy enable Snappy compression [no]
209 --enable-libspeex enable Speex de/encoding via libspeex [no]
210 --enable-libtheora enable Theora encoding via libtheora [no]
211 --enable-libtwolame enable MP2 encoding via libtwolame [no]
212 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
213 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
214 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
215 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
216 --enable-libwavpack enable wavpack encoding via libwavpack [no]
217 --enable-libwebp enable WebP encoding via libwebp [no]
218 --enable-libx264 enable H.264 encoding via x264 [no]
219 --enable-libx265 enable HEVC encoding via x265 [no]
220 --enable-libxavs enable AVS encoding via xavs [no]
221 --enable-libxcb enable X11 grabbing using XCB [no]
222 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
223 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
224 --enable-libxvid enable Xvid encoding via xvidcore,
225 native MPEG-4/Xvid encoder exists [no]
226 --enable-mmal enable decoding via MMAL [no]
227 --enable-nvenc enable encoding via NVENC [no]
228 --enable-openssl enable openssl [no]
229 --enable-x11grab enable X11 grabbing (legacy) [no]
230 --enable-zlib enable zlib [autodetect]
231
232 Toolchain options:
233 --arch=ARCH select architecture [$arch]
234 --cpu=CPU select the minimum required CPU (affects
235 instruction selection, may crash on older CPUs)
236 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
237 --enable-cross-compile assume a cross-compiler is used
238 --sysroot=PATH root of cross-build tree
239 --sysinclude=PATH location of cross-build system headers
240 --target-os=OS compiler targets OS [$target_os]
241 --target-exec=CMD command to run executables on target
242 --target-path=DIR path to view of build directory on target
243 --target-samples=DIR path to samples directory on target
244 --toolchain=NAME set tool defaults according to NAME
245 --nm=NM use nm tool
246 --ar=AR use archive tool AR [$ar_default]
247 --as=AS use assembler AS [$as_default]
248 --cc=CC use C compiler CC [$cc_default]
249 --objcc=OCC use ObjC compiler OCC [$cc_default]
250 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
251 --ld=LD use linker LD
252 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
253 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
254 --host-cc=HOSTCC use host C compiler HOSTCC
255 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
256 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
257 --host-ld=HOSTLD use host linker HOSTLD
258 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
259 --host-libs=HLIBS use libs HLIBS when linking for host
260 --host-os=OS compiler host OS [$target_os]
261 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
262 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
263 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
264 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
265 --extra-libs=ELIBS add ELIBS [$ELIBS]
266 --extra-version=STRING version string suffix []
267 --optflags=OPTFLAGS override optimization-related compiler flags
268 --build-suffix=SUFFIX library name suffix []
269 --enable-pic build position-independent code
270 --enable-thumb compile for Thumb instruction set
271 --enable-lto use link-time optimization
272 --env="ENV=override" override the environment variables
273
274 Advanced options (experts only):
275 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
276 --custom-allocator=NAME use a supported custom allocator
277 --disable-symver disable symbol versioning
278 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
279 --disable-safe-bitstream-reader
280 disable buffer boundary checking in bitreaders
281 (faster, but may crash)
282 --enable-memalign-hack emulate memalign, interferes with memory debuggers
283 --enable-sram allow use of on-chip SRAM
284
285 Optimization options (experts only):
286 --disable-asm disable all assembly optimizations
287 --disable-altivec disable AltiVec optimizations
288 --disable-vsx disable VSX optimizations
289 --disable-power8 disable POWER8 optimizations
290 --disable-amd3dnow disable 3DNow! optimizations
291 --disable-amd3dnowext disable 3DNow! extended optimizations
292 --disable-mmx disable MMX optimizations
293 --disable-mmxext disable MMXEXT optimizations
294 --disable-sse disable SSE optimizations
295 --disable-sse2 disable SSE2 optimizations
296 --disable-sse3 disable SSE3 optimizations
297 --disable-ssse3 disable SSSE3 optimizations
298 --disable-sse4 disable SSE4 optimizations
299 --disable-sse42 disable SSE4.2 optimizations
300 --disable-avx disable AVX optimizations
301 --disable-xop disable XOP optimizations
302 --disable-fma3 disable FMA3 optimizations
303 --disable-fma4 disable FMA4 optimizations
304 --disable-avx2 disable AVX2 optimizations
305 --disable-armv5te disable armv5te optimizations
306 --disable-armv6 disable armv6 optimizations
307 --disable-armv6t2 disable armv6t2 optimizations
308 --disable-vfp disable VFP optimizations
309 --disable-neon disable NEON optimizations
310 --disable-inline-asm disable use of inline assembly
311 --disable-yasm disable use of nasm/yasm assembly
312
313 Developer options (useful when working on Libav itself):
314 --disable-debug disable debugging symbols
315 --enable-debug=LEVEL set the debug level [$debuglevel]
316 --disable-optimizations disable compiler optimizations
317 --enable-extra-warnings enable more compiler warnings
318 --samples=PATH location of test samples for FATE, if not set use
319 \$LIBAV_SAMPLES at make invocation time.
320 --enable-neon-clobber-test check NEON registers for clobbering (should be
321 used only for debugging purposes)
322 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
323 should be used only for debugging purposes)
324 --enable-random randomly enable/disable components
325 --disable-random
326 --enable-random=LIST randomly enable/disable specific components or
327 --disable-random=LIST component groups. LIST is a comma-separated list
328 of NAME[:PROB] entries where NAME is a component
329 (group) and PROB the probability associated with
330 NAME (default 0.5).
331 --random-seed=VALUE seed value for --enable/disable-random
332 --disable-valgrind-backtrace do not print a backtrace under Valgrind
333 (only applies to --disable-optimizations builds)
334
335 NOTE: Object files are built at the place where configure is launched.
336 EOF
337 exit 0
338 }
339
340 quotes='""'
341
342 log(){
343 echo "$@" >> $logfile
344 }
345
346 log_file(){
347 log BEGIN $1
348 i=1
349 while read line; do
350 printf '%5s %s\n' "${i}" "${line}"
351 i=$(($i+1))
352 done < $1 >> $logfile
353 log END $1
354 }
355
356 echolog(){
357 log "$@"
358 echo "$@"
359 }
360
361 warn(){
362 log "WARNING: $*"
363 WARNINGS="${WARNINGS}WARNING: $*\n"
364 }
365
366 die(){
367 echolog "$@"
368 cat <<EOF
369
370 If you think configure made a mistake, make sure you are using the latest
371 version from Git. If the latest version fails, report the problem to the
372 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
373 EOF
374 if disabled logging; then
375 cat <<EOF
376 Rerun configure with logging enabled (do not use --disable-logging), and
377 include the log this produces with your report.
378 EOF
379 else
380 cat <<EOF
381 Include the log file "$logfile" produced by configure as this will help
382 solving the problem.
383 EOF
384 fi
385 exit 1
386 }
387
388 # Avoid locale weirdness, besides we really just want to translate ASCII.
389 toupper(){
390 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
391 }
392
393 tolower(){
394 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
395 }
396
397 c_escape(){
398 echo "$*" | sed 's/["\\]/\\\0/g'
399 }
400
401 sh_quote(){
402 v=$(echo "$1" | sed "s/'/'\\\\''/g")
403 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
404 echo "$v"
405 }
406
407 cleanws(){
408 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
409 }
410
411 filter(){
412 pat=$1
413 shift
414 for v; do
415 eval "case $v in $pat) echo $v ;; esac"
416 done
417 }
418
419 filter_out(){
420 pat=$1
421 shift
422 for v; do
423 eval "case $v in $pat) ;; *) echo $v ;; esac"
424 done
425 }
426
427 map(){
428 m=$1
429 shift
430 for v; do eval $m; done
431 }
432
433 add_suffix(){
434 suffix=$1
435 shift
436 for v; do echo ${v}${suffix}; done
437 }
438
439 set_all(){
440 value=$1
441 shift
442 for var in $*; do
443 eval $var=$value
444 done
445 }
446
447 set_weak(){
448 value=$1
449 shift
450 for var; do
451 eval : \${$var:=$value}
452 done
453 }
454
455 sanitize_var_name(){
456 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
457 }
458
459 set_safe(){
460 var=$1
461 shift
462 eval $(sanitize_var_name "$var")='$*'
463 }
464
465 get_safe(){
466 eval echo \$$(sanitize_var_name "$1")
467 }
468
469 pushvar(){
470 for pvar in $*; do
471 eval level=\${${pvar}_level:=0}
472 eval ${pvar}_${level}="\$$pvar"
473 eval ${pvar}_level=$(($level+1))
474 done
475 }
476
477 popvar(){
478 for pvar in $*; do
479 eval level=\${${pvar}_level:-0}
480 test $level = 0 && continue
481 eval level=$(($level-1))
482 eval $pvar="\${${pvar}_${level}}"
483 eval ${pvar}_level=$level
484 eval unset ${pvar}_${level}
485 done
486 }
487
488 enable(){
489 set_all yes $*
490 }
491
492 disable(){
493 set_all no $*
494 }
495
496 enable_weak(){
497 set_weak yes $*
498 }
499
500 disable_weak(){
501 set_weak no $*
502 }
503
504 enable_safe(){
505 for var; do
506 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
507 done
508 }
509
510 disable_safe(){
511 for var; do
512 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
513 done
514 }
515
516 do_enable_deep(){
517 for var; do
518 enabled $var && continue
519 eval sel="\$${var}_select"
520 eval sgs="\$${var}_suggest"
521 pushvar var sgs
522 enable_deep $sel
523 popvar sgs
524 enable_deep_weak $sgs
525 popvar var
526 done
527 }
528
529 enable_deep(){
530 do_enable_deep $*
531 enable $*
532 }
533
534 enable_deep_weak(){
535 for var; do
536 disabled $var && continue
537 pushvar var
538 do_enable_deep $var
539 popvar var
540 enable_weak $var
541 done
542 }
543
544 enabled(){
545 test "${1#!}" = "$1" && op== || op=!=
546 eval test "x\$${1#!}" $op "xyes"
547 }
548
549 disabled(){
550 test "${1#!}" = "$1" && op== || op=!=
551 eval test "x\$${1#!}" $op "xno"
552 }
553
554 enabled_all(){
555 for opt; do
556 enabled $opt || return 1
557 done
558 }
559
560 disabled_all(){
561 for opt; do
562 disabled $opt || return 1
563 done
564 }
565
566 enabled_any(){
567 for opt; do
568 enabled $opt && return 0
569 done
570 }
571
572 disabled_any(){
573 for opt; do
574 disabled $opt && return 0
575 done
576 return 1
577 }
578
579 set_default(){
580 for opt; do
581 eval : \${$opt:=\$${opt}_default}
582 done
583 }
584
585 is_in(){
586 value=$1
587 shift
588 for var in $*; do
589 [ $var = $value ] && return 0
590 done
591 return 1
592 }
593
594 do_check_deps(){
595 for cfg; do
596 cfg="${cfg#!}"
597 enabled ${cfg}_checking && die "Circular dependency for $cfg."
598 disabled ${cfg}_checking && continue
599 enable ${cfg}_checking
600 append allopts $cfg
601
602 eval dep_all="\$${cfg}_deps"
603 eval dep_any="\$${cfg}_deps_any"
604 eval dep_sel="\$${cfg}_select"
605 eval dep_sgs="\$${cfg}_suggest"
606 eval dep_ifa="\$${cfg}_if"
607 eval dep_ifn="\$${cfg}_if_any"
608
609 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
610 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
611 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
612
613 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
614 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
615 enabled_all $dep_all || disable $cfg
616 enabled_any $dep_any || disable $cfg
617 disabled_any $dep_sel && disable $cfg
618
619 if enabled $cfg; then
620 enable_deep $dep_sel
621 enable_deep_weak $dep_sgs
622 fi
623
624 disable ${cfg}_checking
625 done
626 }
627
628 check_deps(){
629 unset allopts
630
631 do_check_deps "$@"
632
633 for cfg in $allopts; do
634 enabled $cfg || continue
635 eval dep_extralibs="\$${cfg}_extralibs"
636 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
637 done
638 }
639
640 print_config(){
641 pfx=$1
642 files=$2
643 shift 2
644 map 'eval echo "$v \${$v:-no}"' "$@" |
645 awk "BEGIN { split(\"$files\", files) }
646 {
647 c = \"$pfx\" toupper(\$1);
648 v = \$2;
649 sub(/yes/, 1, v);
650 sub(/no/, 0, v);
651 for (f in files) {
652 file = files[f];
653 if (file ~ /\\.h\$/) {
654 printf(\"#define %s %d\\n\", c, v) >>file;
655 } else if (file ~ /\\.asm\$/) {
656 printf(\"%%define %s %d\\n\", c, v) >>file;
657 } else if (file ~ /\\.mak\$/) {
658 n = -v ? \"\" : \"!\";
659 printf(\"%s%s=yes\\n\", n, c) >>file;
660 }
661 }
662 }"
663 }
664
665 print_enabled(){
666 suf=$1
667 shift
668 for v; do
669 enabled $v && printf "%s\n" ${v%$suf};
670 done
671 }
672
673 append(){
674 var=$1
675 shift
676 eval "$var=\"\$$var $*\""
677 }
678
679 prepend(){
680 var=$1
681 shift
682 eval "$var=\"$* \$$var\""
683 }
684
685 unique(){
686 var=$1
687 uniq_list=""
688 for tok in $(eval echo \$$var); do
689 uniq_list="$(filter_out $tok $uniq_list) $tok"
690 done
691 eval "$var=\"${uniq_list}\""
692 }
693
694 add_cppflags(){
695 append CPPFLAGS "$@"
696 }
697
698 add_cflags(){
699 append CFLAGS $($cflags_filter "$@")
700 }
701
702 add_asflags(){
703 append ASFLAGS $($asflags_filter "$@")
704 }
705
706 add_objcflags(){
707 append OBJCFLAGS $($objcflags_filter "$@")
708 }
709
710 add_ldflags(){
711 append LDFLAGS $($ldflags_filter "$@")
712 }
713
714 add_ldexeflags(){
715 append LDEXEFLAGS $($ldflags_filter "$@")
716 }
717
718 add_stripflags(){
719 append STRIPFLAGS "$@"
720 }
721
722 add_extralibs(){
723 prepend extralibs $($ldflags_filter "$@")
724 }
725
726 add_host_cppflags(){
727 append host_cppflags "$@"
728 }
729
730 add_host_cflags(){
731 append host_cflags $($host_cflags_filter "$@")
732 }
733
734 add_host_ldflags(){
735 append host_ldflags $($host_ldflags_filter "$@")
736 }
737
738 add_compat(){
739 append compat_objs $1
740 shift
741 map 'add_cppflags -D$v' "$@"
742 }
743
744 check_cmd(){
745 log "$@"
746 "$@" >> $logfile 2>&1
747 }
748
749 cc_o(){
750 eval printf '%s\\n' $CC_O
751 }
752
753 cc_e(){
754 eval printf '%s\\n' $CC_E
755 }
756
757 check_cc(){
758 log check_cc "$@"
759 cat > $TMPC
760 log_file $TMPC
761 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
762 }
763
764 check_objcc(){
765 log check_objcc "$@"
766 cat > $TMPC
767 log_file $TMPC
768 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
769 }
770
771 check_cpp(){
772 log check_cpp "$@"
773 cat > $TMPC
774 log_file $TMPC
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
776 }
777
778 as_o(){
779 eval printf '%s\\n' $AS_O
780 }
781
782 check_as(){
783 log check_as "$@"
784 cat > $TMPS
785 log_file $TMPS
786 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
787 }
788
789 check_inline_asm(){
790 log check_inline_asm "$@"
791 name="$1"
792 code="$2"
793 shift 2
794 disable $name
795 check_cc "$@" <<EOF && enable $name
796 void foo(void){ __asm__ volatile($code); }
797 EOF
798 }
799
800 check_insn(){
801 log check_insn "$@"
802 check_inline_asm ${1}_inline "\"$2\""
803 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
804 }
805
806 check_yasm(){
807 log check_yasm "$@"
808 echo "$1" > $TMPS
809 log_file $TMPS
810 shift 1
811 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
812 }
813
814 ld_o(){
815 eval printf '%s\\n' $LD_O
816 }
817
818 check_ld(){
819 log check_ld "$@"
820 flags=$(filter_out '-l*' "$@")
821 libs=$(filter '-l*' "$@")
822 check_cc $($cflags_filter $flags) || return
823 flags=$($ldflags_filter $flags)
824 libs=$($ldflags_filter $libs)
825 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
826 }
827
828 print_include(){
829 hdr=$1
830 test "${hdr%.h}" = "${hdr}" &&
831 echo "#include $hdr" ||
832 echo "#include <$hdr>"
833 }
834
835 check_code(){
836 log check_code "$@"
837 check=$1
838 headers=$2
839 code=$3
840 shift 3
841 {
842 for hdr in $headers; do
843 print_include $hdr
844 done
845 echo "int main(void) { $code; return 0; }"
846 } | check_$check "$@"
847 }
848
849 check_cppflags(){
850 log check_cppflags "$@"
851 check_cc "$@" <<EOF && append CPPFLAGS "$@"
852 int x;
853 EOF
854 }
855
856 test_cflags(){
857 log test_cflags "$@"
858 set -- $($cflags_filter "$@")
859 check_cc "$@" <<EOF
860 int x;
861 EOF
862 }
863
864 check_cflags(){
865 log check_cflags "$@"
866 test_cflags "$@" && add_cflags "$@"
867 }
868
869 test_objcflags(){
870 log test_cflags "$@"
871 set -- $($cflags_filter "$@")
872 check_objcc "$@" <<EOF
873 int x;
874 EOF
875 }
876
877 check_objcflags(){
878 log check_cflags "$@"
879 test_objcflags "$@" && add_objcflags "$@"
880 }
881
882 test_ldflags(){
883 log test_ldflags "$@"
884 check_ld "$@" <<EOF
885 int main(void){ return 0; }
886 EOF
887 }
888
889 check_ldflags(){
890 log check_ldflags "$@"
891 test_ldflags "$@" && add_ldflags "$@"
892 }
893
894 test_stripflags(){
895 log test_stripflags "$@"
896 # call check_cc to get a fresh TMPO
897 check_cc <<EOF
898 int main(void) { return 0; }
899 EOF
900 check_cmd $strip $STRIPFLAGS "$@" $TMPO
901 }
902
903 check_stripflags(){
904 log check_stripflags "$@"
905 test_stripflags "$@" && add_stripflags "$@"
906 }
907
908 check_header(){
909 log check_header "$@"
910 header=$1
911 shift
912 disable_safe $header
913 check_cpp "$@" <<EOF && enable_safe $header
914 #include <$header>
915 int x;
916 EOF
917 }
918
919 check_func(){
920 log check_func "$@"
921 func=$1
922 shift
923 disable $func
924 check_ld "$@" <<EOF && enable $func
925 extern int $func();
926 int main(void){ $func(); }
927 EOF
928 }
929
930 check_mathfunc(){
931 log check_mathfunc "$@"
932 func=$1
933 narg=$2
934 shift 2
935 test $narg = 2 && args="f, g" || args="f"
936 disable $func
937 check_ld "$@" <<EOF && enable $func
938 #include <math.h>
939 float foo(float f, float g) { return $func($args); }
940 int main(void){ return 0; }
941 EOF
942 }
943
944 check_func_headers(){
945 log check_func_headers "$@"
946 headers=$1
947 funcs=$2
948 shift 2
949 {
950 for hdr in $headers; do
951 print_include $hdr
952 done
953 for func in $funcs; do
954 echo "long check_$func(void) { return (long) $func; }"
955 done
956 echo "int main(void) { return 0; }"
957 } | check_ld "$@" && enable $funcs && enable_safe $headers
958 }
959
960 check_cpp_condition(){
961 log check_cpp_condition "$@"
962 header=$1
963 condition=$2
964 shift 2
965 check_cpp "$@" <<EOF
966 #include <$header>
967 #if !($condition)
968 #error "unsatisfied condition: $condition"
969 #endif
970 EOF
971 }
972
973 check_lib(){
974 log check_lib "$@"
975 header="$1"
976 func="$2"
977 shift 2
978 check_header $header && check_func $func "$@" && add_extralibs "$@"
979 }
980
981 check_lib2(){
982 log check_lib2 "$@"
983 headers="$1"
984 funcs="$2"
985 shift 2
986 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
987 }
988
989 check_pkg_config(){
990 log check_pkg_config "$@"
991 pkg="$1"
992 headers="$2"
993 funcs="$3"
994 shift 3
995 check_cmd $pkg_config --exists --print-errors $pkg || return
996 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
997 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
998 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
999 set_safe "${pkg}_cflags" $pkg_cflags &&
1000 set_safe "${pkg}_libs" $pkg_libs
1001 }
1002
1003 check_exec(){
1004 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1005 }
1006
1007 check_exec_crash(){
1008 code=$(cat)
1009
1010 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1011 # are safe but may not be available everywhere. Thus we use
1012 # raise(SIGTERM) instead. The check is run in a subshell so we
1013 # can redirect the "Terminated" message from the shell. SIGBUS
1014 # is not defined by standard C so it is used conditionally.
1015
1016 (check_exec "$@") >> $logfile 2>&1 <<EOF
1017 #include <signal.h>
1018 static void sighandler(int sig){
1019 raise(SIGTERM);
1020 }
1021 int foo(void){
1022 $code
1023 }
1024 int (*func_ptr)(void) = foo;
1025 int main(void){
1026 signal(SIGILL, sighandler);
1027 signal(SIGFPE, sighandler);
1028 signal(SIGSEGV, sighandler);
1029 #ifdef SIGBUS
1030 signal(SIGBUS, sighandler);
1031 #endif
1032 return func_ptr();
1033 }
1034 EOF
1035 }
1036
1037 check_type(){
1038 log check_type "$@"
1039 headers=$1
1040 type=$2
1041 shift 2
1042 disable_safe "$type"
1043 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1044 }
1045
1046 check_struct(){
1047 log check_struct "$@"
1048 headers=$1
1049 struct=$2
1050 member=$3
1051 shift 3
1052 disable_safe "${struct}_${member}"
1053 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1054 enable_safe "${struct}_${member}"
1055 }
1056
1057 check_builtin(){
1058 log check_builtin "$@"
1059 name=$1
1060 headers=$2
1061 builtin=$3
1062 shift 3
1063 disable "$name"
1064 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1065 }
1066
1067 check_compile_assert(){
1068 log check_compile_assert "$@"
1069 name=$1
1070 headers=$2
1071 condition=$3
1072 shift 3
1073 disable "$name"
1074 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1075 }
1076
1077 require(){
1078 name="$1"
1079 header="$2"
1080 func="$3"
1081 shift 3
1082 check_lib $header $func "$@" || die "ERROR: $name not found"
1083 }
1084
1085 require2(){
1086 name="$1"
1087 headers="$2"
1088 func="$3"
1089 shift 3
1090 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1091 }
1092
1093 require_pkg_config(){
1094 pkg="$1"
1095 check_pkg_config "$@" || die "ERROR: $pkg not found"
1096 add_cflags $(get_safe "${pkg}_cflags")
1097 add_extralibs $(get_safe "${pkg}_libs")
1098 }
1099
1100 hostcc_e(){
1101 eval printf '%s\\n' $HOSTCC_E
1102 }
1103
1104 hostcc_o(){
1105 eval printf '%s\\n' $HOSTCC_O
1106 }
1107
1108 check_host_cc(){
1109 log check_host_cc "$@"
1110 cat > $TMPC
1111 log_file $TMPC
1112 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1113 }
1114
1115 check_host_cpp(){
1116 log check_host_cpp "$@"
1117 cat > $TMPC
1118 log_file $TMPC
1119 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1120 }
1121
1122 check_host_cppflags(){
1123 log check_host_cppflags "$@"
1124 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1125 int x;
1126 EOF
1127 }
1128
1129 check_host_cflags(){
1130 log check_host_cflags "$@"
1131 set -- $($host_cflags_filter "$@")
1132 check_host_cc "$@" <<EOF && append host_cflags "$@"
1133 int x;
1134 EOF
1135 }
1136
1137 check_host_cpp_condition(){
1138 log check_host_cpp_condition "$@"
1139 header=$1
1140 condition=$2
1141 shift 2
1142 check_host_cpp "$@" <<EOF
1143 #include <$header>
1144 #if !($condition)
1145 #error "unsatisfied condition: $condition"
1146 #endif
1147 EOF
1148 }
1149
1150 apply(){
1151 file=$1
1152 shift
1153 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1154 }
1155
1156 cp_if_changed(){
1157 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1158 mkdir -p "$(dirname $2)"
1159 $cp_f "$1" "$2"
1160 }
1161
1162 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1163 # system-dependent things.
1164
1165 AVCODEC_COMPONENTS="
1166 bsfs
1167 decoders
1168 encoders
1169 hwaccels
1170 parsers
1171 "
1172
1173 AVDEVICE_COMPONENTS="
1174 indevs
1175 outdevs
1176 "
1177 AVFILTER_COMPONENTS="
1178 filters
1179 "
1180 AVFORMAT_COMPONENTS="
1181 demuxers
1182 muxers
1183 protocols
1184 "
1185
1186 AVRESAMPLE_COMPONENTS=""
1187 AVUTIL_COMPONENTS=""
1188
1189 COMPONENT_LIST="
1190 $AVCODEC_COMPONENTS
1191 $AVDEVICE_COMPONENTS
1192 $AVFILTER_COMPONENTS
1193 $AVFORMAT_COMPONENTS
1194 $AVRESAMPLE_COMPONENTS
1195 $AVUTIL_COMPONENTS
1196 "
1197
1198 EXAMPLE_LIST="
1199 avcodec_example
1200 filter_audio_example
1201 metadata_example
1202 output_example
1203 qsvdec_example
1204 transcode_aac_example
1205 "
1206
1207 EXTERNAL_LIBRARY_LIST="
1208 avisynth
1209 bzlib
1210 cuda
1211 frei0r
1212 gnutls
1213 libbs2b
1214 libcdio
1215 libdc1394
1216 libdcadec
1217 libfaac
1218 libfdk_aac
1219 libfontconfig
1220 libfreetype
1221 libgsm
1222 libilbc
1223 libkvazaar
1224 libmfx
1225 libmp3lame
1226 libnpp
1227 libopencore_amrnb
1228 libopencore_amrwb
1229 libopencv
1230 libopenh264
1231 libopenjpeg
1232 libopus
1233 libpulse
1234 librtmp
1235 libschroedinger
1236 libsnappy
1237 libspeex
1238 libtheora
1239 libtwolame
1240 libvo_aacenc
1241 libvo_amrwbenc
1242 libvorbis
1243 libvpx
1244 libwavpack
1245 libwebp
1246 libx264
1247 libx265
1248 libxavs
1249 libxcb
1250 libxcb_shm
1251 libxcb_xfixes
1252 libxvid
1253 mmal
1254 nvenc
1255 openssl
1256 x11grab
1257 zlib
1258 "
1259
1260 FEATURE_LIST="
1261 gray
1262 hardcoded_tables
1263 runtime_cpudetect
1264 safe_bitstream_reader
1265 shared
1266 small
1267 sram
1268 static
1269 swscale_alpha
1270 "
1271
1272 HWACCEL_LIST="
1273 d3d11va
1274 dxva2
1275 vaapi
1276 vda
1277 vdpau
1278 "
1279
1280 LIBRARY_LIST="
1281 avcodec
1282 avdevice
1283 avfilter
1284 avformat
1285 avresample
1286 avutil
1287 swscale
1288 "
1289
1290 LICENSE_LIST="
1291 gpl
1292 nonfree
1293 version3
1294 "
1295
1296 PROGRAM_LIST="
1297 avconv
1298 avplay
1299 avprobe
1300 "
1301
1302 SUBSYSTEM_LIST="
1303 dct
1304 doc
1305 error_resilience
1306 faan
1307 fft
1308 lsp
1309 lzo
1310 mdct
1311 network
1312 rdft
1313 "
1314
1315 CONFIG_LIST="
1316 $COMPONENT_LIST
1317 $EXAMPLE_LIST
1318 $EXTERNAL_LIBRARY_LIST
1319 $FEATURE_LIST
1320 $HWACCEL_LIST
1321 $LICENSE_LIST
1322 $LIBRARY_LIST
1323 $PROGRAM_LIST
1324 $SUBSYSTEM_LIST
1325 memalign_hack
1326 neon_clobber_test
1327 pic
1328 pod2man
1329 texi2html
1330 thumb
1331 valgrind_backtrace
1332 xmm_clobber_test
1333 "
1334
1335 THREADS_LIST="
1336 pthreads
1337 w32threads
1338 "
1339
1340 ATOMICS_LIST="
1341 atomics_gcc
1342 atomics_suncc
1343 atomics_win32
1344 "
1345
1346 ARCH_LIST="
1347 aarch64
1348 alpha
1349 arm
1350 avr32
1351 avr32_ap
1352 avr32_uc
1353 bfin
1354 ia64
1355 m68k
1356 mips
1357 mips64
1358 parisc
1359 ppc
1360 ppc64
1361 s390
1362 sh4
1363 sparc
1364 sparc64
1365 tilegx
1366 tilepro
1367 tomi
1368 x86
1369 x86_32
1370 x86_64
1371 "
1372
1373 ARCH_EXT_LIST_ARM="
1374 armv5te
1375 armv6
1376 armv6t2
1377 armv8
1378 neon
1379 vfp
1380 vfpv3
1381 "
1382
1383 ARCH_EXT_LIST_X86_SIMD="
1384 amd3dnow
1385 amd3dnowext
1386 avx
1387 avx2
1388 fma3
1389 fma4
1390 mmx
1391 mmxext
1392 sse
1393 sse2
1394 sse3
1395 sse4
1396 sse42
1397 ssse3
1398 xop
1399 "
1400
1401 ARCH_EXT_LIST_PPC="
1402 altivec
1403 dcbzl
1404 ldbrx
1405 power8
1406 ppc4xx
1407 vsx
1408 "
1409
1410 ARCH_EXT_LIST_X86="
1411 $ARCH_EXT_LIST_X86_SIMD
1412 cpunop
1413 i686
1414 "
1415
1416 ARCH_EXT_LIST_MIPS="
1417 loongson
1418 mips32r1
1419 mips64r1
1420 mips32r2
1421 mips64r2
1422 mips32r6
1423 mips64r6
1424 "
1425
1426 ARCH_EXT_LIST="
1427 $ARCH_EXT_LIST_ARM
1428 $ARCH_EXT_LIST_MIPS
1429 $ARCH_EXT_LIST_PPC
1430 $ARCH_EXT_LIST_X86
1431 vis
1432 "
1433
1434 ARCH_FEATURES="
1435 aligned_stack
1436 fast_64bit
1437 fast_clz
1438 fast_cmov
1439 local_aligned_8
1440 local_aligned_16
1441 simd_align_16
1442 "
1443
1444 BUILTIN_LIST="
1445 atomic_cas_ptr
1446 machine_rw_barrier
1447 MemoryBarrier
1448 mm_empty
1449 rdtsc
1450 sync_val_compare_and_swap
1451 "
1452 HAVE_LIST_CMDLINE="
1453 inline_asm
1454 symver
1455 yasm
1456 "
1457
1458 HAVE_LIST_PUB="
1459 bigendian
1460 fast_unaligned
1461 "
1462
1463 HEADERS_LIST="
1464 AVFoundation_AVFoundation_h
1465 alsa_asoundlib_h
1466 altivec_h
1467 arpa_inet_h
1468 cdio_paranoia_h
1469 cdio_paranoia_paranoia_h
1470 dev_bktr_ioctl_bt848_h
1471 dev_bktr_ioctl_meteor_h
1472 dev_ic_bt8xx_h
1473 dev_video_bktr_ioctl_bt848_h
1474 dev_video_meteor_ioctl_meteor_h
1475 direct_h
1476 dlfcn_h
1477 d3d11_h
1478 dxva_h
1479 gsm_h
1480 io_h
1481 mach_mach_time_h
1482 machine_ioctl_bt848_h
1483 machine_ioctl_meteor_h
1484 malloc_h
1485 poll_h
1486 sndio_h
1487 soundcard_h
1488 sys_mman_h
1489 sys_param_h
1490 sys_resource_h
1491 sys_select_h
1492 sys_soundcard_h
1493 sys_time_h
1494 sys_un_h
1495 sys_videoio_h
1496 unistd_h
1497 valgrind_valgrind_h
1498 windows_h
1499 winsock2_h
1500 "
1501
1502 INTRINSICS_LIST="
1503 intrinsics_neon
1504 "
1505
1506 MATH_FUNCS="
1507 atanf
1508 atan2f
1509 cbrtf
1510 cosf
1511 exp2
1512 exp2f
1513 expf
1514 isinf
1515 isnan
1516 ldexpf
1517 llrint
1518 llrintf
1519 log2
1520 log2f
1521 log10f
1522 lrint
1523 lrintf
1524 powf
1525 rint
1526 round
1527 roundf
1528 sinf
1529 trunc
1530 truncf
1531 "
1532
1533 SYSTEM_FUNCS="
1534 aligned_malloc
1535 clock_gettime
1536 closesocket
1537 CommandLineToArgvW
1538 CoTaskMemFree
1539 CryptGenRandom
1540 dlopen
1541 fcntl
1542 flt_lim
1543 fork
1544 getaddrinfo
1545 gethrtime
1546 getopt
1547 GetProcessAffinityMask
1548 GetProcessMemoryInfo
1549 GetProcessTimes
1550 getrusage
1551 GetSystemTimeAsFileTime
1552 gettimeofday
1553 gmtime_r
1554 inet_aton
1555 isatty
1556 jack_port_get_latency_range
1557 LoadLibrary
1558 localtime_r
1559 mach_absolute_time
1560 MapViewOfFile
1561 memalign
1562 mkstemp
1563 mmap
1564 mprotect
1565 nanosleep
1566 posix_memalign
1567 sched_getaffinity
1568 SetConsoleTextAttribute
1569 setmode
1570 setrlimit
1571 Sleep
1572 strerror_r
1573 sysconf
1574 sysctl
1575 usleep
1576 VirtualAlloc
1577 "
1578
1579 TOOLCHAIN_FEATURES="
1580 as_dn_directive
1581 as_func
1582 as_object_arch
1583 asm_mod_q
1584 attribute_may_alias
1585 attribute_packed
1586 ebp_available
1587 ebx_available
1588 gnu_as
1589 ibm_asm
1590 inline_asm_labels
1591 pragma_deprecated
1592 symver_asm_label
1593 symver_gnu_asm
1594 vfp_args
1595 xform_asm
1596 xmm_clobbers
1597 "
1598
1599 TYPES_LIST="
1600 CONDITION_VARIABLE_Ptr
1601 socklen_t
1602 struct_addrinfo
1603 struct_group_source_req
1604 struct_ip_mreq_source
1605 struct_ipv6_mreq
1606 struct_pollfd
1607 struct_rusage_ru_maxrss
1608 struct_sockaddr_in6
1609 struct_sockaddr_sa_len
1610 struct_sockaddr_storage
1611 struct_v4l2_frmivalenum_discrete
1612 "
1613
1614 HAVE_LIST="
1615 $ARCH_EXT_LIST
1616 $(add_suffix _external $ARCH_EXT_LIST)
1617 $(add_suffix _inline $ARCH_EXT_LIST)
1618 $ARCH_FEATURES
1619 $ATOMICS_LIST
1620 $BUILTIN_LIST
1621 $HAVE_LIST_CMDLINE
1622 $HAVE_LIST_PUB
1623 $HEADERS_LIST
1624 $INTRINSICS_LIST
1625 $MATH_FUNCS
1626 $SYSTEM_FUNCS
1627 $THREADS_LIST
1628 $TOOLCHAIN_FEATURES
1629 $TYPES_LIST
1630 atomics_native
1631 dos_paths
1632 dxva2_lib
1633 libc_msvcrt
1634 libdc1394_1
1635 libdc1394_2
1636 sdl
1637 section_data_rel_ro
1638 threads
1639 vaapi_x11
1640 vdpau_x11
1641 xlib
1642 "
1643
1644 # options emitted with CONFIG_ prefix but not available on the command line
1645 CONFIG_EXTRA="
1646 aandcttables
1647 ac3dsp
1648 audio_frame_queue
1649 audiodsp
1650 blockdsp
1651 bswapdsp
1652 cabac
1653 dirac_parse
1654 dvprofile
1655 faandct
1656 faanidct
1657 fdctdsp
1658 flacdsp
1659 fmtconvert
1660 g722dsp
1661 gcrypt
1662 gmp
1663 golomb
1664 gplv3
1665 h263dsp
1666 h264chroma
1667 h264dsp
1668 h264pred
1669 h264qpel
1670 hpeldsp
1671 huffman
1672 huffyuvdsp
1673 huffyuvencdsp
1674 idctdsp
1675 iirfilter
1676 imdct15
1677 intrax8
1678 iso_media
1679 ividsp
1680 jpegtables
1681 libx262
1682 lgplv3
1683 lpc
1684 lzf
1685 me_cmp
1686 mpeg_er
1687 mpegaudio
1688 mpegaudiodsp
1689 mpegvideo
1690 mpegvideoenc
1691 mss34dsp
1692 pixblockdsp
1693 qpeldsp
1694 qsv
1695 qsvdec
1696 qsvenc
1697 rangecoder
1698 riffdec
1699 riffenc
1700 rtpdec
1701 rtpenc_chain
1702 rv34dsp
1703 sinewin
1704 snappy
1705 srtp
1706 startcode
1707 texturedsp
1708 texturedspenc
1709 tpeldsp
1710 vc1dsp
1711 videodsp
1712 vp3dsp
1713 vp56dsp
1714 vp8dsp
1715 wma_freqs
1716 wmv2dsp
1717 "
1718
1719 CMDLINE_SELECT="
1720 $ARCH_EXT_LIST
1721 $CONFIG_LIST
1722 $HAVE_LIST_CMDLINE
1723 $THREADS_LIST
1724 asm
1725 cross_compile
1726 debug
1727 extra_warnings
1728 logging
1729 lto
1730 optimizations
1731 rpath
1732 "
1733
1734 PATHS_LIST="
1735 bindir
1736 datadir
1737 docdir
1738 incdir
1739 libdir
1740 mandir
1741 prefix
1742 shlibdir
1743 "
1744
1745 CMDLINE_SET="
1746 $PATHS_LIST
1747 ar
1748 arch
1749 as
1750 build_suffix
1751 cc
1752 objcc
1753 cpu
1754 cross_prefix
1755 custom_allocator
1756 dep_cc
1757 env
1758 extra_version
1759 host_cc
1760 host_cflags
1761 host_ld
1762 host_ldflags
1763 host_libs
1764 host_os
1765 ld
1766 logfile
1767 malloc_prefix
1768 nm
1769 optflags
1770 pkg_config
1771 pkg_config_flags
1772 random_seed
1773 samples
1774 sysinclude
1775 sysroot
1776 target_exec
1777 target_os
1778 target_path
1779 target_samples
1780 toolchain
1781 "
1782
1783 CMDLINE_APPEND="
1784 extra_cflags
1785 extra_objcflags
1786 host_cppflags
1787 "
1788
1789 # code dependency declarations
1790
1791 # architecture extensions
1792
1793 armv5te_deps="arm"
1794 armv6_deps="arm"
1795 armv6t2_deps="arm"
1796 armv8_deps="aarch64"
1797 neon_deps_any="aarch64 arm"
1798 intrinsics_neon_deps="neon"
1799 vfp_deps_any="aarch64 arm"
1800 vfpv3_deps="vfp"
1801
1802 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1803
1804 altivec_deps="ppc"
1805 ppc4xx_deps="ppc"
1806 vsx_deps="altivec"
1807 power8_deps="vsx"
1808
1809 cpunop_deps="i686"
1810 x86_64_select="i686"
1811 x86_64_suggest="fast_cmov"
1812
1813 amd3dnow_deps="mmx"
1814 amd3dnowext_deps="amd3dnow"
1815 i686_deps="x86"
1816 mmx_deps="x86"
1817 mmxext_deps="mmx"
1818 sse_deps="mmxext"
1819 sse2_deps="sse"
1820 sse3_deps="sse2"
1821 ssse3_deps="sse3"
1822 sse4_deps="ssse3"
1823 sse42_deps="sse4"
1824 avx_deps="sse42"
1825 xop_deps="avx"
1826 fma3_deps="avx"
1827 fma4_deps="avx"
1828 avx2_deps="avx"
1829
1830 mmx_external_deps="yasm"
1831 mmx_inline_deps="inline_asm"
1832 mmx_suggest="mmx_external mmx_inline"
1833
1834 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1835 eval dep=\$${ext}_deps
1836 eval ${ext}_external_deps='"${dep}_external"'
1837 eval ${ext}_inline_deps='"${dep}_inline"'
1838 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1839 done
1840
1841 aligned_stack_if_any="aarch64 ppc x86"
1842 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1843 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1844 fast_unaligned_if_any="aarch64 ppc x86"
1845 simd_align_16_if_any="altivec neon sse"
1846
1847 # system capabilities
1848 symver_if_any="symver_asm_label symver_gnu_asm"
1849 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1850
1851 # threading support
1852 atomics_gcc_if="sync_val_compare_and_swap"
1853 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1854 atomics_win32_if="MemoryBarrier"
1855 atomics_native_if_any="$ATOMICS_LIST"
1856 w32threads_deps="atomics_native"
1857 threads_if_any="$THREADS_LIST"
1858
1859 # subsystems
1860 dct_select="rdft"
1861 dirac_parse_select="golomb"
1862 error_resilience_select="me_cmp"
1863 faandct_deps="faan fdctdsp"
1864 faanidct_deps="faan idctdsp"
1865 h264dsp_select="startcode"
1866 mdct_select="fft"
1867 rdft_select="fft"
1868 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1869 mpeg_er_select="error_resilience"
1870 mpegaudio_select="mpegaudiodsp"
1871 mpegaudiodsp_select="dct"
1872 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1873 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1874 nvenc_deps_any="dlopen LoadLibrary"
1875 nvenc_extralibs='$ldl'
1876 qsvdec_select="qsv"
1877 qsvenc_select="qsv"
1878 vc1dsp_select="h264chroma qpeldsp startcode"
1879
1880 # decoders / encoders
1881 aac_decoder_select="imdct15 mdct sinewin"
1882 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1883 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1884 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1885 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1886 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1887 adpcm_g722_decoder_select="g722dsp"
1888 adpcm_g722_encoder_select="g722dsp"
1889 aic_decoder_select="golomb idctdsp"
1890 alac_encoder_select="lpc"
1891 als_decoder_select="bswapdsp"
1892 amrnb_decoder_select="lsp"
1893 amrwb_decoder_select="lsp"
1894 amv_decoder_select="sp5x_decoder"
1895 ape_decoder_select="bswapdsp"
1896 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1897 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1898 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1899 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1900 atrac1_decoder_select="mdct sinewin"
1901 atrac3_decoder_select="mdct"
1902 atrac3p_decoder_select="mdct sinewin"
1903 bink_decoder_select="blockdsp hpeldsp"
1904 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1905 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1906 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1907 cllc_decoder_select="bswapdsp"
1908 comfortnoise_encoder_select="lpc"
1909 cook_decoder_select="audiodsp mdct sinewin"
1910 cscd_decoder_select="lzo"
1911 cscd_decoder_suggest="zlib"
1912 dca_decoder_select="fmtconvert mdct"
1913 dds_decoder_select="texturedsp"
1914 dnxhd_decoder_select="blockdsp idctdsp"
1915 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1916 dvvideo_decoder_select="dvprofile idctdsp"
1917 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1918 dxa_decoder_deps="zlib"
1919 dxv_decoder_select="lzf texturedsp"
1920 eac3_decoder_select="ac3_decoder"
1921 eac3_encoder_select="ac3_encoder"
1922 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1923 eatgq_decoder_select="aandcttables idctdsp"
1924 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1925 exr_decoder_deps="zlib"
1926 ffv1_decoder_select="golomb rangecoder"
1927 ffv1_encoder_select="rangecoder"
1928 ffvhuff_decoder_select="huffyuv_decoder"
1929 ffvhuff_encoder_select="huffyuv_encoder"
1930 fic_decoder_select="golomb"
1931 flac_decoder_select="flacdsp golomb"
1932 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1933 flashsv_decoder_deps="zlib"
1934 flashsv_encoder_deps="zlib"
1935 flashsv2_decoder_deps="zlib"
1936 flv_decoder_select="h263_decoder"
1937 flv_encoder_select="h263_encoder"
1938 fourxm_decoder_select="blockdsp bswapdsp"
1939 fraps_decoder_select="bswapdsp huffman"
1940 g2m_decoder_deps="zlib"
1941 g2m_decoder_select="blockdsp idctdsp jpegtables"
1942 h261_decoder_select="mpeg_er mpegvideo"
1943 h261_encoder_select="aandcttables mpegvideoenc"
1944 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1945 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1946 h263i_decoder_select="h263_decoder"
1947 h263p_encoder_select="h263_encoder"
1948 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1949 h264_decoder_suggest="error_resilience"
1950 h264_nvenc_encoder_deps="nvenc"
1951 h264_qsv_decoder_deps="libmfx"
1952 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1953 h264_qsv_encoder_deps="libmfx"
1954 h264_qsv_encoder_select="qsvenc"
1955 hap_decoder_select="snappy texturedsp"
1956 hap_encoder_deps="libsnappy"
1957 hap_encoder_select="texturedspenc"
1958 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1959 hevc_nvenc_encoder_deps="nvenc"
1960 hevc_qsv_encoder_deps="libmfx"
1961 hevc_qsv_decoder_deps="libmfx"
1962 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1963 hevc_qsv_encoder_select="qsvenc"
1964 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1965 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1966 iac_decoder_select="imc_decoder"
1967 imc_decoder_select="bswapdsp fft mdct sinewin"
1968 indeo3_decoder_select="hpeldsp"
1969 indeo4_decoder_select="ividsp"
1970 indeo5_decoder_select="ividsp"
1971 interplay_video_decoder_select="hpeldsp"
1972 jpegls_decoder_select="golomb mjpeg_decoder"
1973 jpegls_encoder_select="golomb"
1974 jv_decoder_select="blockdsp"
1975 lagarith_decoder_select="huffyuvdsp"
1976 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1977 loco_decoder_select="golomb"
1978 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1979 metasound_decoder_select="lsp mdct sinewin"
1980 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1981 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1982 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1983 mjpegb_decoder_select="mjpeg_decoder"
1984 mlp_decoder_select="mlp_parser"
1985 motionpixels_decoder_select="bswapdsp"
1986 mp1_decoder_select="mpegaudio"
1987 mp1float_decoder_select="mpegaudio"
1988 mp2_decoder_select="mpegaudio"
1989 mp2float_decoder_select="mpegaudio"
1990 mp3_decoder_select="mpegaudio"
1991 mp3adu_decoder_select="mpegaudio"
1992 mp3adufloat_decoder_select="mpegaudio"
1993 mp3float_decoder_select="mpegaudio"
1994 mp3on4_decoder_select="mpegaudio"
1995 mp3on4float_decoder_select="mpegaudio"
1996 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1997 mpc8_decoder_select="mpegaudiodsp"
1998 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1999 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2000 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2001 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2002 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2003 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2004 mpeg2_qsv_decoder_deps="libmfx"
2005 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2006 mpeg2_qsv_encoder_deps="libmfx"
2007 mpeg2_qsv_encoder_select="qsvenc"
2008 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2009 mpeg4_encoder_select="h263_encoder"
2010 msa1_decoder_select="mss34dsp"
2011 msmpeg4v1_decoder_select="h263_decoder"
2012 msmpeg4v2_decoder_select="h263_decoder"
2013 msmpeg4v2_encoder_select="h263_encoder"
2014 msmpeg4v3_decoder_select="h263_decoder"
2015 msmpeg4v3_encoder_select="h263_encoder"
2016 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2017 mts2_decoder_select="mss34dsp"
2018 mxpeg_decoder_select="mjpeg_decoder"
2019 nellymoser_decoder_select="mdct sinewin"
2020 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2021 nuv_decoder_select="idctdsp lzo"
2022 nvenc_h264_encoder_deps="nvenc"
2023 nvenc_hevc_encoder_deps="nvenc"
2024 on2avc_decoder_select="mdct"
2025 opus_decoder_deps="avresample"
2026 opus_decoder_select="imdct15"
2027 png_decoder_deps="zlib"
2028 png_encoder_deps="zlib"
2029 png_encoder_select="huffyuvencdsp"
2030 prores_decoder_select="idctdsp"
2031 prores_encoder_select="fdctdsp"
2032 qcelp_decoder_select="lsp"
2033 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2034 ra_144_encoder_select="audio_frame_queue lpc"
2035 ralf_decoder_select="golomb"
2036 rscc_decoder_deps="zlib"
2037 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2038 rv10_encoder_select="h263_encoder"
2039 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2040 rv20_encoder_select="h263_encoder"
2041 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2042 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2043 screenpresso_decoder_deps="zlib"
2044 shorten_decoder_select="golomb"
2045 sipr_decoder_select="lsp"
2046 sp5x_decoder_select="mjpeg_decoder"
2047 svq1_decoder_select="hpeldsp"
2048 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2049 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2050 svq3_decoder_suggest="zlib"
2051 tak_decoder_select="audiodsp"
2052 tdsc_decoder_deps="zlib"
2053 tdsc_decoder_select="mjpeg_decoder"
2054 theora_decoder_select="vp3_decoder"
2055 thp_decoder_select="mjpeg_decoder"
2056 tiff_decoder_suggest="zlib"
2057 tiff_encoder_suggest="zlib"
2058 truehd_decoder_select="mlp_decoder"
2059 truemotion2_decoder_select="bswapdsp"
2060 truespeech_decoder_select="bswapdsp"
2061 tscc_decoder_deps="zlib"
2062 txd_decoder_select="texturedsp"
2063 twinvq_decoder_select="mdct lsp sinewin"
2064 utvideo_decoder_select="bswapdsp"
2065 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2066 vble_decoder_select="huffyuvdsp"
2067 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2068 vc1image_decoder_select="vc1_decoder"
2069 vorbis_decoder_select="mdct"
2070 vorbis_encoder_select="mdct"
2071 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2072 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2073 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2074 vp6a_decoder_select="vp6_decoder"
2075 vp6f_decoder_select="vp6_decoder"
2076 vp7_decoder_select="h264pred videodsp vp8dsp"
2077 vp8_decoder_select="h264pred videodsp vp8dsp"
2078 vp9_decoder_select="videodsp"
2079 webp_decoder_select="vp8_decoder"
2080 wmapro_decoder_select="mdct sinewin wma_freqs"
2081 wmav1_decoder_select="mdct sinewin wma_freqs"
2082 wmav1_encoder_select="mdct sinewin wma_freqs"
2083 wmav2_decoder_select="mdct sinewin wma_freqs"
2084 wmav2_encoder_select="mdct sinewin wma_freqs"
2085 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2086 wmv1_decoder_select="h263_decoder"
2087 wmv1_encoder_select="h263_encoder"
2088 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2089 wmv2_encoder_select="h263_encoder wmv2dsp"
2090 wmv3_decoder_select="vc1_decoder"
2091 wmv3image_decoder_select="wmv3_decoder"
2092 zerocodec_decoder_deps="zlib"
2093 zlib_decoder_deps="zlib"
2094 zlib_encoder_deps="zlib"
2095 zmbv_decoder_deps="zlib"
2096 zmbv_encoder_deps="zlib"
2097
2098 # hardware accelerators
2099 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2100 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2101 vaapi_deps="va_va_h"
2102 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2103 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2104 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2105
2106 h263_vaapi_hwaccel_deps="vaapi"
2107 h263_vaapi_hwaccel_select="h263_decoder"
2108 h264_d3d11va_hwaccel_deps="d3d11va"
2109 h264_d3d11va_hwaccel_select="h264_decoder"
2110 h264_dxva2_hwaccel_deps="dxva2"
2111 h264_dxva2_hwaccel_select="h264_decoder"
2112 h264_mmal_decoder_deps="mmal"
2113 h264_mmal_hwaccel_deps="mmal"
2114 h264_mmal_decoder_select="h264_decoder"
2115 h264_mmal_encoder_deps="mmal"
2116 h264_qsv_hwaccel_deps="libmfx"
2117 h264_vaapi_hwaccel_deps="vaapi"
2118 h264_vaapi_hwaccel_select="h264_decoder"
2119 h264_vda_hwaccel_deps="vda"
2120 h264_vda_hwaccel_select="h264_decoder"
2121 h264_vda_old_hwaccel_deps="vda"
2122 h264_vda_old_hwaccel_select="h264_decoder"
2123 h264_vdpau_hwaccel_deps="vdpau"
2124 h264_vdpau_hwaccel_select="h264_decoder"
2125 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2126 hevc_d3d11va_hwaccel_select="hevc_decoder"
2127 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2128 hevc_dxva2_hwaccel_select="hevc_decoder"
2129 hevc_qsv_hwaccel_deps="libmfx"
2130 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2131 hevc_vdpau_hwaccel_select="hevc_decoder"
2132 mpeg1_vdpau_hwaccel_deps="vdpau"
2133 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2134 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2135 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2136 mpeg2_dxva2_hwaccel_deps="dxva2"
2137 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2138 mpeg2_qsv_hwaccel_deps="libmfx"
2139 mpeg2_vaapi_hwaccel_deps="vaapi"
2140 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2141 mpeg2_vdpau_hwaccel_deps="vdpau"
2142 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2143 mpeg4_vaapi_hwaccel_deps="vaapi"
2144 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2145 mpeg4_vdpau_hwaccel_deps="vdpau"
2146 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2147 vc1_d3d11va_hwaccel_deps="d3d11va"
2148 vc1_d3d11va_hwaccel_select="vc1_decoder"
2149 vc1_dxva2_hwaccel_deps="dxva2"
2150 vc1_dxva2_hwaccel_select="vc1_decoder"
2151 vc1_vaapi_hwaccel_deps="vaapi"
2152 vc1_vaapi_hwaccel_select="vc1_decoder"
2153 vc1_vdpau_hwaccel_deps="vdpau"
2154 vc1_vdpau_hwaccel_select="vc1_decoder"
2155 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2156 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2157 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2158 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2159
2160 # parsers
2161 h264_parser_select="h264_decoder"
2162 hevc_parser_select="golomb"
2163 mpegvideo_parser_select="mpegvideo"
2164 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2165 vc1_parser_select="vc1dsp"
2166
2167 # bitstream_filters
2168 mjpeg2jpeg_bsf_select="jpegtables"
2169
2170 # external libraries
2171 libdcadec_decoder_deps="libdcadec"
2172 libfaac_encoder_deps="libfaac"
2173 libfaac_encoder_select="audio_frame_queue"
2174 libfdk_aac_decoder_deps="libfdk_aac"
2175 libfdk_aac_encoder_deps="libfdk_aac"
2176 libfdk_aac_encoder_select="audio_frame_queue"
2177 libgsm_decoder_deps="libgsm"
2178 libgsm_encoder_deps="libgsm"
2179 libgsm_ms_decoder_deps="libgsm"
2180 libgsm_ms_encoder_deps="libgsm"
2181 libilbc_decoder_deps="libilbc"
2182 libilbc_encoder_deps="libilbc"
2183 libkvazaar_encoder_deps="libkvazaar"
2184 libmp3lame_encoder_deps="libmp3lame"
2185 libmp3lame_encoder_select="audio_frame_queue"
2186 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2187 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2188 libopencore_amrnb_encoder_select="audio_frame_queue"
2189 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2190 libopenh264_encoder_deps="libopenh264"
2191 libopenjpeg_decoder_deps="libopenjpeg"
2192 libopenjpeg_encoder_deps="libopenjpeg"
2193 libopus_decoder_deps="libopus"
2194 libopus_encoder_deps="libopus"
2195 libopus_encoder_select="audio_frame_queue"
2196 libschroedinger_decoder_deps="libschroedinger"
2197 libschroedinger_encoder_deps="libschroedinger"
2198 libspeex_decoder_deps="libspeex"
2199 libspeex_encoder_deps="libspeex"
2200 libspeex_encoder_select="audio_frame_queue"
2201 libtheora_encoder_deps="libtheora"
2202 libtwolame_encoder_deps="libtwolame"
2203 libvo_aacenc_encoder_deps="libvo_aacenc"
2204 libvo_aacenc_encoder_select="audio_frame_queue"
2205 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2206 libvorbis_encoder_deps="libvorbis"
2207 libvorbis_encoder_select="audio_frame_queue"
2208 libvpx_vp8_decoder_deps="libvpx"
2209 libvpx_vp8_encoder_deps="libvpx"
2210 libvpx_vp9_decoder_deps="libvpx"
2211 libvpx_vp9_encoder_deps="libvpx"
2212 libwavpack_encoder_deps="libwavpack"
2213 libwebp_encoder_deps="libwebp"
2214 libx262_encoder_deps="libx262"
2215 libx264_encoder_deps="libx264"
2216 libx265_encoder_deps="libx265"
2217 libxavs_encoder_deps="libxavs"
2218 libxvid_encoder_deps="libxvid"
2219
2220 # demuxers / muxers
2221 ac3_demuxer_select="ac3_parser"
2222 asf_demuxer_select="riffdec"
2223 asf_muxer_select="riffenc"
2224 asf_stream_muxer_select="asf_muxer"
2225 avi_demuxer_select="iso_media riffdec"
2226 avi_muxer_select="riffenc"
2227 avisynth_demuxer_deps="avisynth"
2228 avisynth_demuxer_select="riffdec"
2229 caf_demuxer_select="iso_media riffdec"
2230 dash_muxer_select="mp4_muxer"
2231 dirac_demuxer_select="dirac_parser"
2232 dv_demuxer_select="dvprofile"
2233 dv_muxer_select="dvprofile"
2234 dxa_demuxer_select="riffdec"
2235 eac3_demuxer_select="ac3_parser"
2236 f4v_muxer_select="mov_muxer"
2237 flac_demuxer_select="flac_parser"
2238 hds_muxer_select="flv_muxer"
2239 hls_muxer_select="mpegts_muxer"
2240 ipod_muxer_select="mov_muxer"
2241 ismv_muxer_select="mov_muxer"
2242 matroska_audio_muxer_select="matroska_muxer"
2243 matroska_demuxer_select="iso_media riffdec"
2244 matroska_demuxer_suggest="bzlib lzo zlib"
2245 matroska_muxer_select="iso_media riffenc"
2246 mmf_muxer_select="riffenc"
2247 mov_demuxer_select="iso_media riffdec"
2248 mov_demuxer_suggest="zlib"
2249 mov_muxer_select="iso_media riffenc rtpenc_chain"
2250 mp3_demuxer_select="mpegaudio_parser"
2251 mp4_muxer_select="mov_muxer"
2252 mpegts_demuxer_select="iso_media"
2253 mpegts_muxer_select="adts_muxer latm_muxer"
2254 mpegtsraw_demuxer_select="mpegts_demuxer"
2255 mxf_d10_muxer_select="mxf_muxer"
2256 nut_muxer_select="riffenc"
2257 nuv_demuxer_select="riffdec"
2258 oga_muxer_select="ogg_muxer"
2259 ogg_demuxer_select="dirac_parse"
2260 opus_muxer_select="ogg_muxer"
2261 psp_muxer_select="mov_muxer"
2262 rtp_demuxer_select="sdp_demuxer"
2263 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2264 rtsp_demuxer_select="http_protocol rtpdec"
2265 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2266 sap_demuxer_select="sdp_demuxer"
2267 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2268 sdp_demuxer_select="rtpdec"
2269 smoothstreaming_muxer_select="ismv_muxer"
2270 spdif_muxer_select="aac_parser"
2271 spx_muxer_select="ogg_muxer"
2272 swf_demuxer_suggest="zlib"
2273 tak_demuxer_select="tak_parser"
2274 tg2_muxer_select="mov_muxer"
2275 tgp_muxer_select="mov_muxer"
2276 w64_demuxer_select="wav_demuxer"
2277 wav_demuxer_select="riffdec"
2278 wav_muxer_select="riffenc"
2279 webm_muxer_select="iso_media riffenc"
2280 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2281 wtv_demuxer_select="mpegts_demuxer riffdec"
2282 xmv_demuxer_select="riffdec"
2283 xwma_demuxer_select="riffdec"
2284
2285 # indevs / outdevs
2286 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2287 alsa_outdev_deps="alsa_asoundlib_h"
2288 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2289 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2290 dv1394_indev_deps="dv1394"
2291 dv1394_indev_select="dv_demuxer"
2292 fbdev_indev_deps="linux_fb_h"
2293 jack_indev_deps="jack_jack_h pthreads"
2294 libcdio_indev_deps="libcdio"
2295 libdc1394_indev_deps="libdc1394"
2296 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2297 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2298 pulse_indev_deps="libpulse"
2299 sndio_indev_deps="sndio_h"
2300 sndio_outdev_deps="sndio_h"
2301 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2302 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2303 vfwcap_indev_extralibs="-lavicap32"
2304 x11grab_indev_deps="x11grab"
2305 x11grab_xcb_indev_deps="libxcb"
2306
2307 # protocols
2308 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2309 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2310 ffrtmpcrypt_protocol_select="tcp_protocol"
2311 ffrtmphttp_protocol_deps="!librtmp_protocol"
2312 ffrtmphttp_protocol_select="http_protocol"
2313 gopher_protocol_select="network"
2314 http_protocol_select="tcp_protocol"
2315 httpproxy_protocol_select="tcp_protocol"
2316 https_protocol_select="tls_protocol"
2317 icecast_protocol_select="http_protocol"
2318 librtmp_protocol_deps="librtmp"
2319 librtmpe_protocol_deps="librtmp"
2320 librtmps_protocol_deps="librtmp"
2321 librtmpt_protocol_deps="librtmp"
2322 librtmpte_protocol_deps="librtmp"
2323 mmsh_protocol_select="http_protocol"
2324 mmst_protocol_select="network"
2325 rtmp_protocol_deps="!librtmp_protocol"
2326 rtmp_protocol_select="tcp_protocol"
2327 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2328 rtmps_protocol_deps="!librtmp_protocol"
2329 rtmps_protocol_select="tls_protocol"
2330 rtmpt_protocol_select="ffrtmphttp_protocol"
2331 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2332 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2333 rtp_protocol_select="udp_protocol"
2334 sctp_protocol_deps="struct_sctp_event_subscribe"
2335 sctp_protocol_select="network"
2336 srtp_protocol_select="rtp_protocol srtp"
2337 tcp_protocol_select="network"
2338 tls_gnutls_protocol_deps="gnutls"
2339 tls_gnutls_protocol_select="tcp_protocol"
2340 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2341 tls_openssl_protocol_select="tcp_protocol"
2342 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2343 udp_protocol_select="network"
2344 unix_protocol_deps="sys_un_h"
2345 unix_protocol_select="network"
2346
2347 # filters
2348 blackframe_filter_deps="gpl"
2349 boxblur_filter_deps="gpl"
2350 bs2b_filter_deps="libbs2b"
2351 cropdetect_filter_deps="gpl"
2352 delogo_filter_deps="gpl"
2353 drawtext_filter_deps="libfreetype"
2354 frei0r_filter_deps="frei0r dlopen"
2355 frei0r_filter_extralibs='$ldl'
2356 frei0r_src_filter_deps="frei0r dlopen"
2357 frei0r_src_filter_extralibs='$ldl'
2358 hqdn3d_filter_deps="gpl"
2359 hwupload_cuda_filter_deps="cuda"
2360 interlace_filter_deps="gpl"
2361 ocv_filter_deps="libopencv"
2362 resample_filter_deps="avresample"
2363 scale_filter_deps="swscale"
2364 scale_npp_filter_deps="cuda libnpp"
2365 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2366
2367 # examples
2368 avcodec_example_deps="avcodec avutil"
2369 filter_audio_example_deps="avfilter avutil"
2370 metadata_example_deps="avformat avutil"
2371 output_example_deps="avcodec avformat avutil swscale"
2372 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2373 transcode_aac_example_deps="avcodec avformat avresample"
2374
2375 # libraries, in linking order
2376 avcodec_deps="avutil"
2377 avdevice_deps="avformat avcodec avutil"
2378 avfilter_deps="avutil"
2379 avformat_deps="avcodec avutil"
2380 avresample_deps="avutil"
2381 swscale_deps="avutil"
2382
2383 # programs
2384 avconv_deps="avcodec avfilter avformat avresample swscale"
2385 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2386 fps_filter null_filter resample_filter scale_filter
2387 setpts_filter trim_filter"
2388 avplay_deps="avcodec avfilter avformat avresample sdl"
2389 avplay_libs='$sdl_libs'
2390 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2391 avprobe_deps="avcodec avformat"
2392
2393 # documentation
2394 pod2man_deps="doc"
2395 texi2html_deps="doc"
2396
2397 # default parameters
2398
2399 logfile="config.log"
2400
2401 # installation paths
2402 prefix_default="/usr/local"
2403 bindir_default='${prefix}/bin'
2404 datadir_default='${prefix}/share/avconv'
2405 docdir_default='${prefix}/share/doc/libav'
2406 incdir_default='${prefix}/include'
2407 libdir_default='${prefix}/lib'
2408 mandir_default='${prefix}/share/man'
2409 shlibdir_default="$libdir_default"
2410
2411 # toolchain
2412 ar_default="ar"
2413 cc_default="gcc"
2414 host_cc_default="gcc"
2415 cp_f="cp -f"
2416 ln_s="ln -s -f"
2417 nm_default="nm -g"
2418 objformat="elf"
2419 pkg_config_default=pkg-config
2420 ranlib="ranlib"
2421 strip="strip"
2422 yasmexe="yasm"
2423
2424 # machine
2425 arch_default=$(uname -m)
2426 cpu="generic"
2427 intrinsics="none"
2428
2429 # OS
2430 target_os_default=$(tolower $(uname -s))
2431 host_os=$target_os_default
2432
2433 # configurable options
2434 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2435
2436 enable asm
2437 enable debug
2438 enable doc
2439 enable faan faandct faanidct
2440 enable optimizations
2441 enable safe_bitstream_reader
2442 enable static
2443 enable swscale_alpha
2444 enable valgrind_backtrace
2445
2446 # By default, enable only those hwaccels that have no external dependencies.
2447 enable d3d11va dxva2 vda vdpau
2448
2449 # build settings
2450 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2451 LIBPREF="lib"
2452 LIBSUF=".a"
2453 FULLNAME='$(NAME)$(BUILDSUF)'
2454 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2455 SLIBPREF="lib"
2456 SLIBSUF=".so"
2457 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2458 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2459 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2460 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2461 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2462 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2463
2464 asflags_filter=echo
2465 cflags_filter=echo
2466 ldflags_filter=echo
2467
2468 AS_C='-c'
2469 AS_O='-o $@'
2470 CC_C='-c'
2471 CC_E='-E -o $@'
2472 CC_O='-o $@'
2473 OBJCC_C='-c'
2474 OBJCC_E='-E -o $@'
2475 OBJCC_O='-o $@'
2476 LD_O='-o $@'
2477 LD_LIB='-l%'
2478 LD_PATH='-L'
2479 HOSTCC_C='-c'
2480 HOSTCC_E='-E -o $@'
2481 HOSTCC_O='-o $@'
2482 HOSTLD_O='-o $@'
2483
2484 host_libs='-lm'
2485 host_cflags_filter=echo
2486 host_ldflags_filter=echo
2487
2488 target_path='$(CURDIR)'
2489
2490 # since the object filename is not given with the -MM flag, the compiler
2491 # is only able to print the basename, and we must add the path ourselves
2492 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2493 DEPFLAGS='-MM'
2494
2495 # find source path
2496 if test -f configure; then
2497 source_path=.
2498 else
2499 source_path=$(cd $(dirname "$0"); pwd)
2500 echo "$source_path" | grep -q '[[:blank:]]' &&
2501 die "Out of tree builds are impossible with whitespace in source path."
2502 test -e "$source_path/config.h" &&
2503 die "Out of tree builds are impossible with config.h in source dir."
2504 fi
2505
2506 for v in "$@"; do
2507 r=${v#*=}
2508 l=${v%"$r"}
2509 r=$(sh_quote "$r")
2510 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2511 done
2512
2513 find_things(){
2514 thing=$1
2515 pattern=$2
2516 file=$source_path/$3
2517 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2518 }
2519
2520 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2521 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2522 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2523 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2524 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2525 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2526 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2527 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2528 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2529
2530 find_things_extern(){
2531 thing=$1
2532 pattern=$2
2533 file=$source_path/$3
2534 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2535 }
2536
2537 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2538 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2539
2540 ALL_COMPONENTS="
2541 $BSF_LIST
2542 $DECODER_LIST
2543 $DEMUXER_LIST
2544 $ENCODER_LIST
2545 $FILTER_LIST
2546 $HWACCEL_LIST
2547 $INDEV_LIST
2548 $MUXER_LIST
2549 $OUTDEV_LIST
2550 $PARSER_LIST
2551 $PROTOCOL_LIST
2552 "
2553
2554 for n in $COMPONENT_LIST; do
2555 v=$(toupper ${n%s})_LIST
2556 eval enable \$$v
2557 eval ${n}_if_any="\$$v"
2558 done
2559
2560 enable $ARCH_EXT_LIST
2561
2562 die_unknown(){
2563 echo "Unknown option \"$1\"."
2564 echo "See $0 --help for available options."
2565 exit 1
2566 }
2567
2568 print_3_columns() {
2569 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2570 }
2571
2572 show_list() {
2573 suffix=_$1
2574 shift
2575 echo $* | sed s/$suffix//g | print_3_columns
2576 exit 0
2577 }
2578
2579 rand_list(){
2580 IFS=', '
2581 set -- $*
2582 unset IFS
2583 for thing; do
2584 comp=${thing%:*}
2585 prob=${thing#$comp}
2586 prob=${prob#:}
2587 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2588 echo "prob ${prob:-0.5}"
2589 printf '%s\n' $comp
2590 done
2591 }
2592
2593 do_random(){
2594 action=$1
2595 shift
2596 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2597 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2598 }
2599
2600 for opt do
2601 optval="${opt#*=}"
2602 case "$opt" in
2603 --extra-ldflags=*)
2604 add_ldflags $optval
2605 ;;
2606 --extra-ldexeflags=*)
2607 add_ldexeflags $optval
2608 ;;
2609 --extra-libs=*)
2610 add_extralibs $optval
2611 ;;
2612 --disable-devices)
2613 disable $INDEV_LIST $OUTDEV_LIST
2614 ;;
2615 --enable-debug=*)
2616 debuglevel="$optval"
2617 ;;
2618 --disable-programs)
2619 disable $PROGRAM_LIST
2620 ;;
2621 --disable-everything)
2622 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2623 ;;
2624 --disable-all)
2625 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2626 disable $LIBRARY_LIST $PROGRAM_LIST doc
2627 ;;
2628 --enable-random|--disable-random)
2629 action=${opt%%-random}
2630 do_random ${action#--} $COMPONENT_LIST
2631 ;;
2632 --enable-random=*|--disable-random=*)
2633 action=${opt%%-random=*}
2634 do_random ${action#--} $optval
2635 ;;
2636 --enable-*=*|--disable-*=*)
2637 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2638 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2639 eval list=\$$(toupper $thing)_LIST
2640 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2641 $action $(filter "$name" $list)
2642 ;;
2643 --enable-avserver|--disable-avserver*)
2644 warn "avserver has been removed, the ${opt} option is only"\
2645 "provided for compatibility and will be removed in the future"
2646 ;;
2647 --enable-?*|--disable-?*)
2648 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2649 if is_in $option $COMPONENT_LIST; then
2650 test $action = disable && action=unset
2651 eval $action \$$(toupper ${option%s})_LIST
2652 elif is_in $option $CMDLINE_SELECT; then
2653 $action $option
2654 else
2655 die_unknown $opt
2656 fi
2657 ;;
2658 --list-*)
2659 NAME="${opt#--list-}"
2660 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2661 NAME=${NAME%s}
2662 eval show_list $NAME \$$(toupper $NAME)_LIST
2663 ;;
2664 --help|-h) show_help
2665 ;;
2666 *)
2667 optname="${opt%%=*}"
2668 optname="${optname#--}"
2669 optname=$(echo "$optname" | sed 's/-/_/g')
2670 if is_in $optname $CMDLINE_SET; then
2671 eval $optname='$optval'
2672 elif is_in $optname $CMDLINE_APPEND; then
2673 append $optname "$optval"
2674 else
2675 die_unknown $opt
2676 fi
2677 ;;
2678 esac
2679 done
2680
2681 for e in $env; do
2682 eval "export $e"
2683 done
2684
2685 disabled logging && logfile=/dev/null
2686
2687 # Disable all the library-specific components if the library itself
2688 # is disabled, see AVCODEC_LIST and following _LIST variables.
2689
2690 disable_components(){
2691 disabled ${1} && disable $(
2692 eval components="\$$(toupper ${1})_COMPONENTS"
2693 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2694 )
2695 }
2696
2697 map 'disable_components $v' $LIBRARY_LIST
2698
2699 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2700 set >> $logfile
2701
2702 case "$toolchain" in
2703 *-asan)
2704 cc_default="${toolchain%-asan}"
2705 add_cflags -fsanitize=address
2706 add_ldflags -fsanitize=address
2707 ;;
2708 *-msan)
2709 cc_default="${toolchain%-msan}"
2710 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2711 add_ldflags -fsanitize=memory
2712 ;;
2713 *-tsan)
2714 cc_default="${toolchain%-tsan}"
2715 add_cflags -fsanitize=thread -pie
2716 add_ldflags -fsanitize=thread -pie
2717 case "$toolchain" in
2718 gcc-tsan)
2719 add_cflags -fPIC
2720 add_ldflags -fPIC
2721 ;;
2722 esac
2723 ;;
2724 *-usan)
2725 cc_default="${toolchain%-usan}"
2726 add_cflags -fsanitize=undefined
2727 add_ldflags -fsanitize=undefined
2728 case "$toolchain" in
2729 clang-usan)
2730 add_cflags -O1
2731 ;;
2732 esac
2733 ;;
2734 valgrind-*)
2735 target_exec_default="valgrind"
2736 case "$toolchain" in
2737 valgrind-massif)
2738 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2739 ;;
2740 valgrind-memcheck)
2741 target_exec_args="--track-origins=yes --leak-check=full"
2742 ;;
2743 esac
2744 ;;
2745 msvc)
2746 # Check whether the current MSVC version needs the C99 converter.
2747 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2748 # support enough of C99 to build libav. Default to the new
2749 # behaviour if the regexp was unable to match anything, since this
2750 # successfully parses the version number of existing supported
2751 # versions that require the converter (MSVC 2010 and 2012).
2752 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2753 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2754 cc_default="cl"
2755 else
2756 cc_default="c99wrap cl"
2757 fi
2758 ld_default="$source_path/compat/windows/mslink"
2759 nm_default="dumpbin -symbols"
2760 ar_default="lib"
2761 case "$arch" in
2762 arm*)
2763 as_default="armasm"
2764 ;;
2765 esac
2766 target_os_default="win32"
2767 # Use a relative path for TMPDIR. This makes sure all the
2768 # ffconf temp files are written with a relative path, avoiding
2769 # issues with msys/win32 path conversion for MSVC parameters
2770 # such as -Fo<file> or -out:<file>.
2771 TMPDIR=.
2772 ;;
2773 icl)
2774 cc_default="icl"
2775 ld_default="xilink"
2776 nm_default="dumpbin -symbols"
2777 ar_default="xilib"
2778 target_os_default="win32"
2779 TMPDIR=.
2780 ;;
2781 gcov)
2782 add_cflags -fprofile-arcs -ftest-coverage
2783 add_ldflags -fprofile-arcs -ftest-coverage
2784 ;;
2785 llvm-cov)
2786 add_cflags -fprofile-arcs -ftest-coverage
2787 add_ldflags --coverage
2788 ;;
2789 hardened)
2790 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2791 add_cflags -fno-strict-overflow -fstack-protector-all
2792 add_ldflags -Wl,-z,relro -Wl,-z,now
2793 ;;
2794 ?*)
2795 die "Unknown toolchain $toolchain"
2796 ;;
2797 esac
2798
2799 test -n "$cross_prefix" && enable cross_compile
2800
2801 if enabled cross_compile; then
2802 test -n "$arch" && test -n "$target_os" ||
2803 die "Must specify target arch and OS when cross-compiling"
2804 fi
2805
2806 ar_default="${cross_prefix}${ar_default}"
2807 cc_default="${cross_prefix}${cc_default}"
2808 occ_default="${cross_prefix}${occ_default}"
2809 nm_default="${cross_prefix}${nm_default}"
2810 pkg_config_default="${cross_prefix}${pkg_config_default}"
2811 ranlib="${cross_prefix}${ranlib}"
2812 strip="${cross_prefix}${strip}"
2813
2814 sysinclude_default="${sysroot}/usr/include"
2815
2816 set_default arch cc pkg_config sysinclude target_exec target_os
2817 enabled cross_compile || host_cc_default=$cc
2818 set_default host_cc
2819
2820 if ! $pkg_config --version >/dev/null 2>&1; then
2821 warn "$pkg_config not found, library detection may fail."
2822 pkg_config=false
2823 fi
2824
2825 exesuf() {
2826 case $1 in
2827 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2828 esac
2829 }
2830
2831 EXESUF=$(exesuf $target_os)
2832 HOSTEXESUF=$(exesuf $host_os)
2833
2834 # set temporary file name
2835 : ${TMPDIR:=$TEMPDIR}
2836 : ${TMPDIR:=$TMP}
2837 : ${TMPDIR:=/tmp}
2838
2839 if ! check_cmd mktemp -u XXXXXX; then
2840 # simple replacement for missing mktemp
2841 # NOT SAFE FOR GENERAL USE
2842 mktemp(){
2843 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2844 }
2845 fi
2846
2847 tmpfile(){
2848 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2849 (set -C; exec > $tmp) 2>/dev/null ||
2850 die "Unable to create temporary file in $TMPDIR."
2851 append TMPFILES $tmp
2852 eval $1=$tmp
2853 }
2854
2855 trap 'rm -f -- $TMPFILES' EXIT
2856
2857 tmpfile TMPASM .asm
2858 tmpfile TMPC .c
2859 tmpfile TMPE $EXESUF
2860 tmpfile TMPH .h
2861 tmpfile TMPO .o
2862 tmpfile TMPS .S
2863 tmpfile TMPSH .sh
2864 tmpfile TMPV .ver
2865
2866 unset -f mktemp
2867
2868 chmod +x $TMPE
2869
2870 # make sure we can execute files in $TMPDIR
2871 cat > $TMPSH 2>> $logfile <<EOF
2872 #! /bin/sh
2873 EOF
2874 chmod +x $TMPSH >> $logfile 2>&1
2875 if ! $TMPSH >> $logfile 2>&1; then
2876 cat <<EOF
2877 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2878 variable to another directory and make sure that it is not mounted noexec.
2879 EOF
2880 die "Sanity test failed."
2881 fi
2882
2883 armasm_flags(){
2884 for flag; do
2885 case $flag in
2886 # Filter out MSVC cl.exe options from cflags that shouldn't
2887 # be passed to gas-preprocessor
2888 -M[TD]*) ;;
2889 *) echo $flag ;;
2890 esac
2891 done
2892 }
2893
2894 ccc_flags(){
2895 for flag; do
2896 case $flag in
2897 -std=c99) echo -c99 ;;
2898 -mcpu=*) echo -arch ${flag#*=} ;;
2899 -mieee) echo -ieee ;;
2900 -O*|-fast) echo $flag ;;
2901 -fno-math-errno) echo -assume nomath_errno ;;
2902 -g) echo -g3 ;;
2903 -Wall) echo -msg_enable level2 ;;
2904 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2905 -Wl,*) echo $flag ;;
2906 -f*|-W*) ;;
2907 *) echo $flag ;;
2908 esac
2909 done
2910 }
2911
2912 cparser_flags(){
2913 for flag; do
2914 case $flag in
2915 -Wno-switch) echo -Wno-switch-enum ;;
2916 -Wno-format-zero-length) ;;
2917 -Wdisabled-optimization) ;;
2918 -Wno-pointer-sign) echo -Wno-other ;;
2919 *) echo $flag ;;
2920 esac
2921 done
2922 }
2923
2924 msvc_common_flags(){
2925 for flag; do
2926 case $flag in
2927 # In addition to specifying certain flags under the compiler
2928 # specific filters, they must be specified here as well or else the
2929 # generic catch all at the bottom will print the original flag.
2930 -Wall) ;;
2931 -std=c99) ;;
2932 # Common flags
2933 -fomit-frame-pointer) ;;
2934 -g) echo -Z7 ;;
2935 -fno-math-errno) ;;
2936 -fno-common) ;;
2937 -fno-signed-zeros) ;;
2938 -fPIC) ;;
2939 -mthumb) ;;
2940 -march=*) ;;
2941 -lz) echo zlib.lib ;;
2942 -lavifil32) echo vfw32.lib ;;
2943 -lavicap32) echo vfw32.lib user32.lib ;;
2944 -lx264) echo libx264.lib ;;
2945 -l*) echo ${flag#-l}.lib ;;
2946 -L*) echo -libpath:${flag#-L} ;;
2947 *) echo $flag ;;
2948 esac
2949 done
2950 }
2951
2952 msvc_flags(){
2953 msvc_common_flags "$@"
2954 for flag; do
2955 case $flag in
2956 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2957 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2958 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2959 -wd4273 -wd4554 -wd4701 ;;
2960 esac
2961 done
2962 }
2963
2964 icl_flags(){
2965 msvc_common_flags "$@"
2966 for flag; do
2967 case $flag in
2968 # Despite what Intel's documentation says -Wall, which is supported
2969 # on Windows, does enable remarks so disable them here.
2970 -Wall) echo $flag -Qdiag-disable:remark ;;
2971 -std=c99) echo -Qstd=c99 ;;
2972 esac
2973 done
2974 }
2975
2976 pgi_flags(){
2977 for flag; do
2978 case $flag in
2979 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2980 -fomit-frame-pointer) echo -Mnoframe ;;
2981 -g) echo -gopt ;;
2982 *) echo $flag ;;
2983 esac
2984 done
2985 }
2986
2987 suncc_flags(){
2988 for flag; do
2989 case $flag in
2990 -march=*|-mcpu=*)
2991 case "${flag#*=}" in
2992 native) echo -xtarget=native ;;
2993 v9|niagara) echo -xarch=sparc ;;
2994 ultrasparc) echo -xarch=sparcvis ;;
2995 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2996 i586|pentium) echo -xchip=pentium ;;
2997 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2998 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2999 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3000 pentium4*) echo -xtarget=pentium4 ;;
3001 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3002 *-sse3) echo -xarch=sse3 ;;
3003 core2) echo -xarch=ssse3 -xchip=core2 ;;
3004 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3005 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3006 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3007 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3008 k8|opteron|athlon64|athlon-fx)
3009 echo -xarch=sse2a ;;
3010 athlon*) echo -xarch=pentium_proa ;;
3011 esac
3012 ;;
3013 -std=c99) echo -xc99 ;;
3014 -fomit-frame-pointer) echo -xregs=frameptr ;;
3015 -fPIC) echo -KPIC -xcode=pic32 ;;
3016 -W*,*) echo $flag ;;
3017 -f*-*|-W*|-mimpure-text) ;;
3018 -shared) echo -G ;;
3019 *) echo $flag ;;
3020 esac
3021 done
3022 }
3023
3024 tms470_flags(){
3025 for flag; do
3026 case $flag in
3027 -march=*|-mcpu=*)
3028 case "${flag#*=}" in
3029 armv7-a|cortex-a*) echo -mv=7a8 ;;
3030 armv7-r|cortex-r*) echo -mv=7r4 ;;
3031 armv7-m|cortex-m*) echo -mv=7m3 ;;
3032 armv6*|arm11*) echo -mv=6 ;;
3033 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3034 echo -mv=5e ;;
3035 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3036 esac
3037 ;;
3038 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3039 -mfpu=vfp) echo --float_support=vfpv2 ;;
3040 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3041 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3042 -msoft-float) echo --float_support=vfplib ;;
3043 -O[0-3]|-mf=*) echo $flag ;;
3044 -g) echo -g -mn ;;
3045 -pds=*) echo $flag ;;
3046 -D*|-I*) echo $flag ;;
3047 --gcc|--abi=*) echo $flag ;;
3048 -me) echo $flag ;;
3049 esac
3050 done
3051 }
3052
3053 probe_cc(){
3054 pfx=$1
3055 _cc=$2
3056
3057 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3058 unset _ld_o _ldflags _ld_lib _ld_path
3059 unset _depflags _DEPCMD _DEPFLAGS
3060 _flags_filter=echo
3061
3062 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3063 _type=llvm_gcc
3064 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3065 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3066 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3067 _cflags_speed='-O3'
3068 _cflags_size='-Os'
3069 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3070 _type=gcc
3071 gcc_version=$($_cc --version | head -n1)
3072 gcc_basever=$($_cc -dumpversion)
3073 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3074 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3075 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3076 if ! $_cc -dumpversion | grep -q '^2\.'; then
3077 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3078 fi
3079 _cflags_speed='-O3'
3080 _cflags_size='-Os'
3081 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3082 _type=icc
3083 _ident=$($_cc --version | head -n1)
3084 _depflags='-MMD'
3085 _cflags_speed='-O3'
3086 _cflags_size='-Os'
3087 _cflags_noopt='-O1'
3088 elif $_cc -v 2>&1 | grep -q xlc; then
3089 _type=xlc
3090 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3091 _cflags_speed='-O5'
3092 _cflags_size='-O5 -qcompact'
3093 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3094 _type=ccc
3095 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3096 _DEPFLAGS='-M'
3097 _cflags_speed='-fast'
3098 _cflags_size='-O1'
3099 _flags_filter=ccc_flags
3100 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3101 test -d "$sysroot" || die "No valid sysroot specified."
3102 _type=armcc
3103 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3104 armcc_conf="$PWD/armcc.conf"
3105 $_cc --arm_linux_configure \
3106 --arm_linux_config_file="$armcc_conf" \
3107 --configure_sysroot="$sysroot" \
3108 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3109 die "Error creating armcc configuration file."
3110 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3111 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3112 as_default="${cross_prefix}gcc"
3113 _depflags='-MMD'
3114 _cflags_speed='-O3'
3115 _cflags_size='-Os'
3116 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3117 _type=tms470
3118 _ident=$($_cc -version | head -n1 | tr -s ' ')
3119 _flags='--gcc --abi=eabi -me'
3120 _cc_e='-ppl -fe=$@'
3121 _cc_o='-fe=$@'
3122 _depflags='-ppa -ppd=$(@:.o=.d)'
3123 _cflags_speed='-O3 -mf=5'
3124 _cflags_size='-O3 -mf=2'
3125 _flags_filter=tms470_flags
3126 elif $_cc -v 2>&1 | grep -q clang; then
3127 _type=clang
3128 _ident=$($_cc --version 2>/dev/null | head -n1)
3129 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3130 _cflags_speed='-O3'
3131 _cflags_size='-Os'
3132 elif $_cc -V 2>&1 | grep -q Sun; then
3133 _type=suncc
3134 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3135 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3136 _DEPFLAGS='-xM1 -xc99'
3137 _ldflags='-std=c99'
3138 _cflags_speed='-O5'
3139 _cflags_size='-O5 -xspace'
3140 _flags_filter=suncc_flags
3141 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3142 _type=pathscale
3143 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3144 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3145 _cflags_speed='-O2'
3146 _cflags_size='-Os'
3147 _flags_filter='filter_out -Wdisabled-optimization'
3148 elif $_cc -v 2>&1 | grep -q Open64; then
3149 _type=open64
3150 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3151 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3152 _cflags_speed='-O2'
3153 _cflags_size='-Os'
3154 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3155 elif $_cc -V 2>&1 | grep -q Portland; then
3156 _type=pgi
3157 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3158 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3159 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3160 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3161 _cflags_noopt="-O1"
3162 _flags_filter=pgi_flags
3163 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3164 _type=armasm
3165 _ident=$($_cc | head -n1)
3166 # 4509: "This form of conditional instruction is deprecated"
3167 _flags="-nologo -ignore 4509"
3168 _flags_filter=armasm_flags
3169 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3170 _type=msvc
3171 _ident=$($_cc 2>&1 | head -n1)
3172 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3173 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3174 _cflags_speed="-O2"
3175 _cflags_size="-O1"
3176 if $_cc -nologo- 2>&1 | grep -q Linker; then
3177 _ld_o='-out:$@'
3178 else
3179 _ld_o='-Fe$@'
3180 fi
3181 _cc_o='-Fo$@'
3182 _cc_e='-P -Fi$@'
3183 _flags_filter=msvc_flags
3184 _ld_lib='lib%.a'
3185 _ld_path='-libpath:'
3186 _flags='-nologo'
3187 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3188 elif $_cc 2>&1 | grep -q Intel; then
3189 _type=icl
3190 _ident=$($_cc 2>&1 | head -n1)
3191 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3192 # Not only is O3 broken on 13.x+ but it is slower on all previous
3193 # versions (tested) as well.
3194 _cflags_speed="-O2"
3195 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3196 if $_cc 2>&1 | grep -q Linker; then
3197 _ld_o='-out:$@'
3198 else
3199 _ld_o='-Fe$@'
3200 fi
3201 _cc_o='-Fo$@'
3202 _cc_e='-P'
3203 _flags_filter=icl_flags
3204 _ld_lib='lib%.a'
3205 _ld_path='-libpath:'
3206 # -Qdiag-error to make icl error when seeing certain unknown arguments
3207 _flags='-nologo -Qdiag-error:4044,10157'
3208 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3209 # with MSVC which enables it by default.
3210 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3211 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3212 _type=cparser
3213 _ident=$($_cc --version | head -n1)
3214 _depflags='-MMD'
3215 _cflags_speed='-O4'
3216 _cflags_size='-O2'
3217 _flags_filter=cparser_flags
3218 fi
3219
3220 eval ${pfx}_type=\$_type
3221 eval ${pfx}_ident=\$_ident
3222 }
3223
3224 set_ccvars(){
3225 eval ${1}_C=\${_cc_c-\${${1}_C}}
3226 eval ${1}_E=\${_cc_e-\${${1}_E}}
3227 eval ${1}_O=\${_cc_o-\${${1}_O}}
3228
3229 if [ -n "$_depflags" ]; then
3230 eval ${1}_DEPFLAGS=\$_depflags
3231 else
3232 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3233 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3234 eval DEP${1}FLAGS=\$_flags
3235 fi
3236 }
3237
3238 probe_cc cc "$cc"
3239 cflags_filter=$_flags_filter
3240 cflags_speed=$_cflags_speed
3241 cflags_size=$_cflags_size
3242 cflags_noopt=$_cflags_noopt
3243 add_cflags $_flags $_cflags
3244 cc_ldflags=$_ldflags
3245 set_ccvars CC
3246
3247 probe_cc hostcc "$host_cc"
3248 host_cflags_filter=$_flags_filter
3249 add_host_cflags $_flags $_cflags
3250 set_ccvars HOSTCC
3251
3252 test -n "$cc_type" && enable $cc_type ||
3253 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3254
3255 : ${as_default:=$cc}
3256 : ${objcc_default:=$cc}
3257 : ${dep_cc_default:=$cc}
3258 : ${ld_default:=$cc}
3259 : ${host_ld_default:=$host_cc}
3260 set_default ar as objcc dep_cc ld host_ld
3261
3262 probe_cc as "$as"
3263 asflags_filter=$_flags_filter
3264 add_asflags $_flags $_cflags
3265 set_ccvars AS
3266
3267 probe_cc objcc "$objcc"
3268 objcflags_filter=$_flags_filter
3269 add_objcflags $_flags $_cflags
3270 set_ccvars OBJC
3271
3272 probe_cc ld "$ld"
3273 ldflags_filter=$_flags_filter
3274 add_ldflags $_flags $_ldflags
3275 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3276 LD_O=${_ld_o-$LD_O}
3277 LD_LIB=${_ld_lib-$LD_LIB}
3278 LD_PATH=${_ld_path-$LD_PATH}
3279
3280 probe_cc hostld "$host_ld"
3281 host_ldflags_filter=$_flags_filter
3282 add_host_ldflags $_flags $_ldflags
3283 HOSTLD_O=${_ld_o-$HOSTLD_O}
3284
3285 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3286 probe_cc depcc "$dep_cc"
3287 CCDEP=${_DEPCMD:-$DEPCMD}
3288 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3289 DEPCCFLAGS=$_flags
3290 fi
3291
3292 if $ar 2>&1 | grep -q Microsoft; then
3293 arflags="-nologo"
3294 ar_o='-out:$@'
3295 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3296 arflags="rq"
3297 ar_o='$@'
3298 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3299 arflags='-Xany -r -c'
3300 ar_o='$@'
3301 else
3302 arflags="rc"
3303 ar_o='$@'
3304 fi
3305
3306 add_cflags $extra_cflags
3307 add_objcflags $extra_objcflags
3308 add_asflags $extra_cflags
3309
3310 if test -n "$sysroot"; then
3311 case "$cc_type" in
3312 gcc|llvm_gcc|clang)
3313 add_cppflags --sysroot="$sysroot"
3314 add_ldflags --sysroot="$sysroot"
3315 ;;
3316 tms470)
3317 add_cppflags -I"$sysinclude"
3318 add_ldflags --sysroot="$sysroot"
3319 ;;
3320 esac
3321 fi
3322
3323 if test "$cpu" = host; then
3324 enabled cross_compile &&
3325 die "--cpu=host makes no sense when cross-compiling."
3326
3327 case "$cc_type" in
3328 gcc|llvm_gcc)
3329 check_native(){
3330 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3331 sed -n "/cc1.*$1=/{
3332 s/.*$1=\\([^ ]*\\).*/\\1/
3333 p
3334 q
3335 }" $TMPE
3336 }
3337 cpu=$(check_native -march || check_native -mcpu)
3338 ;;
3339 esac
3340
3341 test "${cpu:-host}" = host &&
3342 die "--cpu=host not supported with compiler $cc"
3343 fi
3344
3345 # Deal with common $arch aliases
3346 case "$arch" in
3347 aarch64|arm64)
3348 arch="aarch64"
3349 ;;
3350 arm*)
3351 arch="arm"
3352 ;;
3353 mips*|IP*)
3354 case "$arch" in
3355 *el)
3356 add_cppflags -EL
3357 add_ldflags -EL
3358 ;;
3359 *eb)
3360 add_cppflags -EB
3361 add_ldflags -EB
3362 ;;
3363 esac
3364 arch="mips"
3365 ;;
3366 parisc*|hppa*)
3367 arch="parisc"
3368 ;;
3369 "Power Macintosh"|ppc*|powerpc*)
3370 arch="ppc"
3371 ;;
3372 s390|s390x)
3373 arch="s390"
3374 ;;
3375 sh4|sh)
3376 arch="sh4"
3377 ;;
3378 sun4u|sparc*)
3379 arch="sparc"
3380 ;;
3381 tilegx|tile-gx)
3382 arch="tilegx"
3383 ;;
3384 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3385 arch="x86"
3386 ;;
3387 esac
3388
3389 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3390 enable $arch
3391
3392 # Add processor-specific flags
3393 if enabled aarch64; then
3394
3395 case $cpu in
3396 armv*)
3397 cpuflags="-march=$cpu"
3398 ;;
3399 *)
3400 cpuflags="-mcpu=$cpu"
3401 ;;
3402 esac
3403
3404 elif enabled alpha; then
3405
3406 cpuflags="-mcpu=$cpu"
3407
3408 elif enabled arm; then
3409
3410 check_arm_arch() {
3411 check_cpp_condition stddef.h \
3412 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3413 $cpuflags
3414 }
3415
3416 probe_arm_arch() {
3417 if check_arm_arch 4; then echo armv4;
3418 elif check_arm_arch 4T; then echo armv4t;
3419 elif check_arm_arch 5; then echo armv5;
3420 elif check_arm_arch 5E; then echo armv5e;
3421 elif check_arm_arch 5T; then echo armv5t;
3422 elif check_arm_arch 5TE; then echo armv5te;
3423 elif check_arm_arch 5TEJ; then echo armv5te;
3424 elif check_arm_arch 6; then echo armv6;
3425 elif check_arm_arch 6J; then echo armv6j;
3426 elif check_arm_arch 6K; then echo armv6k;
3427 elif check_arm_arch 6Z; then echo armv6z;
3428 elif check_arm_arch 6ZK; then echo armv6zk;
3429 elif check_arm_arch 6T2; then echo armv6t2;
3430 elif check_arm_arch 7; then echo armv7;
3431 elif check_arm_arch 7A 7_A; then echo armv7-a;
3432 elif check_arm_arch 7S; then echo armv7-a;
3433 elif check_arm_arch 7R 7_R; then echo armv7-r;
3434 elif check_arm_arch 7M 7_M; then echo armv7-m;
3435 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3436 elif check_arm_arch 8A 8_A; then echo armv8-a;
3437 fi
3438 }
3439
3440 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3441
3442 case $cpu in
3443 armv*)
3444 cpuflags="-march=$cpu"
3445 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3446 ;;
3447 *)
3448 cpuflags="-mcpu=$cpu"
3449 case $cpu in
3450 cortex-a*) subarch=armv7a ;;
3451 cortex-r*) subarch=armv7r ;;
3452 cortex-m*) enable thumb; subarch=armv7m ;;
3453 arm11*) subarch=armv6 ;;
3454 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3455 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3456 *) subarch=$(probe_arm_arch) ;;
3457 esac
3458 ;;
3459 esac
3460
3461 case "$subarch" in
3462 armv5t*) enable fast_clz ;;
3463 armv[6-8]*) enable fast_clz fast_unaligned ;;
3464 esac
3465
3466 elif enabled avr32; then
3467
3468 case $cpu in
3469 ap7[02]0[0-2])
3470 subarch="avr32_ap"
3471 cpuflags="-mpart=$cpu"
3472 ;;
3473 ap)
3474 subarch="avr32_ap"
3475 cpuflags="-march=$cpu"
3476 ;;
3477 uc3[ab]*)
3478 subarch="avr32_uc"
3479 cpuflags="-mcpu=$cpu"
3480 ;;
3481 uc)
3482 subarch="avr32_uc"
3483 cpuflags="-march=$cpu"
3484 ;;
3485 esac
3486
3487 elif enabled bfin; then
3488
3489 cpuflags="-mcpu=$cpu"
3490
3491 elif enabled mips; then
3492
3493 cpuflags="-march=$cpu"
3494
3495 elif enabled ppc; then
3496
3497 disable ldbrx
3498
3499 case $(tolower $cpu) in
3500 601|ppc601|powerpc601)
3501 cpuflags="-mcpu=601"
3502 disable altivec
3503 ;;
3504 603*|ppc603*|powerpc603*)
3505 cpuflags="-mcpu=603"
3506 disable altivec
3507 ;;
3508 604*|ppc604*|powerpc604*)
3509 cpuflags="-mcpu=604"
3510 disable altivec
3511 ;;
3512 g3|75*|ppc75*|powerpc75*)
3513 cpuflags="-mcpu=750"
3514 disable altivec
3515 ;;
3516 g4|745*|ppc745*|powerpc745*)
3517 cpuflags="-mcpu=7450"
3518 disable vsx
3519 ;;
3520 74*|ppc74*|powerpc74*)
3521 cpuflags="-mcpu=7400"
3522 disable vsx
3523 ;;
3524 g5|970|ppc970|powerpc970)
3525 cpuflags="-mcpu=970"
3526 disable vsx
3527 ;;
3528 power[3-6]*)
3529 cpuflags="-mcpu=$cpu"
3530 disable vsx
3531 ;;
3532 power[7-8]*)
3533 cpuflags="-mcpu=$cpu"
3534 enable ldbrx
3535 ;;
3536 cell)
3537 cpuflags="-mcpu=cell"
3538 enable ldbrx
3539 disable vsx
3540 ;;
3541 e500mc)
3542 cpuflags="-mcpu=e500mc"
3543 disable altivec
3544 ;;
3545 e500v2)
3546 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3547 disable altivec
3548 disable dcbzl
3549 ;;
3550 e500)
3551 cpuflags="-mcpu=8540 -mhard-float"
3552 disable altivec
3553 disable dcbzl
3554 ;;
3555 esac
3556
3557 elif enabled sparc; then
3558
3559 case $cpu in
3560 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3561 cpuflags="-mcpu=$cpu"
3562 ;;
3563 ultrasparc*|niagara[234])
3564 cpuflags="-mcpu=$cpu"
3565 ;;
3566 esac
3567
3568 elif enabled x86; then
3569
3570 case $cpu in
3571 i[345]86|pentium)
3572 cpuflags="-march=$cpu"
3573 disable i686
3574 disable mmx
3575 ;;
3576 # targets that do NOT support nopl and conditional mov (cmov)
3577 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3578 cpuflags="-march=$cpu"
3579 disable i686
3580 ;;
3581 # targets that do support nopl and conditional mov (cmov)
3582 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3583 cpuflags="-march=$cpu"
3584 enable i686
3585 enable fast_cmov
3586 ;;
3587 # targets that do support conditional mov but on which it's slow
3588 pentium4|pentium4m|prescott|nocona)
3589 cpuflags="-march=$cpu"
3590 enable i686
3591 disable fast_cmov
3592 ;;
3593 esac
3594
3595 fi
3596
3597 if [ "$cpu" != generic ]; then
3598 add_cflags $cpuflags
3599 add_asflags $cpuflags
3600 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3601 fi
3602
3603 # compiler sanity check
3604 check_exec <<EOF
3605 int main(void){ return 0; }
3606 EOF
3607 if test "$?" != 0; then
3608 echo "$cc is unable to create an executable file."
3609 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3610 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3611 echo "Only do this if you know what cross compiling means."
3612 fi
3613 die "C compiler test failed."
3614 fi
3615
3616 add_cppflags -D_ISOC99_SOURCE
3617 check_cflags -std=c99
3618 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3619 #include <stdlib.h>
3620 EOF
3621 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3622 #include <stdlib.h>
3623 EOF
3624
3625 add_host_cppflags -D_ISOC99_SOURCE
3626 check_host_cflags -std=c99
3627 check_host_cflags -Wall
3628 check_host_cflags -O3
3629
3630 check_64bit(){
3631 arch32=$1
3632 arch64=$2
3633 expr=$3
3634 check_code cc "" "int test[2*($expr) - 1]" &&
3635 subarch=$arch64 || subarch=$arch32
3636 }
3637
3638 case "$arch" in
3639 aarch64|alpha|ia64)
3640 spic=$shared
3641 ;;
3642 mips)
3643 check_64bit mips mips64 '_MIPS_SIM > 1'
3644 spic=$shared
3645 ;;
3646 parisc)
3647 check_64bit parisc parisc64 'sizeof(void *) > 4'
3648 spic=$shared
3649 ;;
3650 ppc)
3651 check_64bit ppc ppc64 'sizeof(void *) > 4'
3652 spic=$shared
3653 ;;
3654 s390)
3655 check_64bit s390 s390x 'sizeof(void *) > 4'
3656 spic=$shared
3657 ;;
3658 sparc)
3659 check_64bit sparc sparc64 'sizeof(void *) > 4'
3660 spic=$shared
3661 ;;
3662 x86)
3663 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3664 if test "$subarch" = "x86_64"; then
3665 spic=$shared
3666 fi
3667 ;;
3668 esac
3669
3670 enable $subarch
3671 enabled spic && enable_weak pic
3672
3673 # OS specific
3674 case $target_os in
3675 aix)
3676 SHFLAGS=-shared
3677 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3678 enabled shared && add_ldflags -Wl,-brtl
3679 ;;
3680 android)
3681 disable symver
3682 enable section_data_rel_ro
3683 SLIB_INSTALL_NAME='$(SLIBNAME)'
3684 SLIB_INSTALL_LINKS=
3685 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3686 ;;
3687 haiku)
3688 prefix_default="/boot/common"
3689 network_extralibs="-lnetwork"
3690 host_libs=
3691 ;;
3692 sunos)
3693 SHFLAGS='-shared -Wl,-h,$$(@F)'
3694 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3695 network_extralibs="-lsocket -lnsl"
3696 # When using suncc to build, the Solaris linker will mark
3697 # an executable with each instruction set encountered by
3698 # the Solaris assembler. As our libraries contain their own
3699 # guards for processor-specific code, instead suppress
3700 # generation of the HWCAPS ELF section on Solaris x86 only.
3701 enabled_all suncc x86 &&
3702 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3703 add_ldflags -Wl,-M,mapfile
3704 nm_default='nm -P -g'
3705 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3706 ;;
3707 netbsd)
3708 disable symver
3709 oss_indev_extralibs="-lossaudio"
3710 oss_outdev_extralibs="-lossaudio"
3711 ;;
3712 openbsd|bitrig)
3713 disable symver
3714 SHFLAGS='-shared'
3715 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3716 SLIB_INSTALL_LINKS=
3717 oss_indev_extralibs="-lossaudio"
3718 oss_outdev_extralibs="-lossaudio"
3719 ;;
3720 dragonfly)
3721 disable symver
3722 ;;
3723 freebsd)
3724 ;;
3725 bsd/os)
3726 add_extralibs -lpoll -lgnugetopt
3727 ;;
3728 darwin)
3729 enabled ppc && add_asflags -force_cpusubtype_ALL
3730 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3731 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3732 add_ldflags -Wl,-dynamic,-search_paths_first
3733 SLIBSUF=".dylib"
3734 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3735 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3736 objformat="macho"
3737 enabled x86_64 && objformat="macho64"
3738 enabled_any pic shared ||
3739 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3740 ;;
3741 msys*)
3742 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3743 ;;
3744 mingw32*|mingw64*)
3745 if test $target_os = "mingw32ce"; then
3746 disable network
3747 else
3748 target_os=mingw32
3749 fi
3750 LIBTARGET=i386
3751 if enabled x86_64; then
3752 LIBTARGET="i386:x86-64"
3753 elif enabled arm; then
3754 LIBTARGET=arm-wince
3755 fi
3756 check_ldflags -Wl,--nxcompat
3757 check_ldflags -Wl,--dynamicbase
3758 shlibdir_default="$bindir_default"
3759 SLIBPREF=""
3760 SLIBSUF=".dll"
3761 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3762 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3763 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3764 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3765 SLIB_INSTALL_LINKS=
3766 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3767 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3768 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3769 objformat="win32"
3770 dlltool="${cross_prefix}dlltool"
3771 ranlib=:
3772 enable dos_paths
3773 ;;
3774 win32|win64)
3775 disable symver
3776 if enabled shared; then
3777 # Link to the import library instead of the normal static library
3778 # for shared libs.
3779 LD_LIB='%.lib'
3780 # Cannot build both shared and static libs with MSVC or icl.
3781 disable static
3782 fi
3783 shlibdir_default="$bindir_default"
3784 SLIBPREF=""
3785 SLIBSUF=".dll"
3786 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3787 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3788 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3789 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3790 SLIB_INSTALL_LINKS=
3791 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3792 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3793 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3794 objformat="win32"
3795 ranlib=:
3796 enable dos_paths
3797 ;;
3798 cygwin*)
3799 target_os=cygwin
3800 shlibdir_default="$bindir_default"
3801 SLIBPREF="cyg"
3802 SLIBSUF=".dll"
3803 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3804 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3805 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3806 SLIB_INSTALL_LINKS=
3807 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3808 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3809 objformat="win32"
3810 enable dos_paths
3811 ;;
3812 *-dos|freedos|opendos)
3813 network_extralibs="-lsocket"
3814 objformat="coff"
3815 enable dos_paths
3816 add_cppflags -U__STRICT_ANSI__
3817 ;;
3818 linux)
3819 enable dv1394
3820 enable section_data_rel_ro
3821 ;;
3822 irix*)
3823 target_os=irix
3824 ranlib="echo ignoring ranlib"
3825 ;;
3826 os/2*)
3827 ln_s="cp -f"
3828 objformat="aout"
3829 add_cppflags -D_GNU_SOURCE
3830 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3831 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3832 LIBSUF="_s.a"
3833 SLIBPREF=""
3834 SLIBSUF=".dll"
3835 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3836 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3837 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3838 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3839 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3840 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3841 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3842 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3843 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3844 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3845 enable dos_paths
3846 ;;
3847 gnu/kfreebsd)
3848 add_cppflags -D_BSD_SOURCE
3849 ;;
3850 gnu)
3851 ;;
3852 qnx)
3853 add_cppflags -D_QNX_SOURCE
3854 network_extralibs="-lsocket"
3855 ;;
3856 symbian)
3857 SLIBSUF=".dll"
3858 enable dos_paths
3859 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3860 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3861 add_ldflags -Wl,--target1-abs,--no-undefined \
3862 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3863 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3864 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3865 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3866 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3867 ;;
3868 osf1)
3869 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3870 ;;
3871 minix)
3872 ;;
3873 plan9)
3874 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3875 -D_REENTRANT_SOURCE \
3876 -D_RESEARCH_SOURCE \
3877 -DFD_SETSIZE=96 \
3878 -DHAVE_SOCK_OPTS
3879 add_compat strtod.o strtod=avpriv_strtod
3880 network_extralibs='-lbsd'
3881 exeobjs=compat/plan9/main.o
3882 cp_f='cp'
3883 ;;
3884 none)
3885 ;;
3886 *)
3887 die "Unknown OS '$target_os'."
3888 ;;
3889 esac
3890
3891 # determine libc flavour
3892
3893 probe_libc(){
3894 pfx=$1
3895 pfx_no_=${pfx%_}
3896 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3897 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3898 eval ${pfx}libc_type=uclibc
3899 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3900 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3901 eval ${pfx}libc_type=glibc
3902 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3903 # MinGW headers can be installed on Cygwin, so check for newlib first.
3904 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3905 eval ${pfx}libc_type=newlib
3906 add_${pfx}cppflags -U__STRICT_ANSI__
3907 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3908 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3909 eval ${pfx}libc_type=mingw64
3910 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3911 eval test \$${pfx_no_}cc_type = "gcc" &&
3912 add_${pfx}cppflags -D__printf__=__gnu_printf__
3913 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3914 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3915 eval ${pfx}libc_type=mingw32
3916 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3917 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3918 die "ERROR: MinGW32 runtime version must be >= 3.15."
3919 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3920 eval test \$${pfx_no_}cc_type = "gcc" &&
3921 add_${pfx}cppflags -D__printf__=__gnu_printf__
3922 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3923 eval ${pfx}libc_type=msvcrt
3924 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3925 if [ "$pfx" = host_ ]; then
3926 add_host_cppflags -Dsnprintf=_snprintf
3927 else
3928 add_compat strtod.o strtod=avpriv_strtod
3929 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3930 _snprintf=avpriv_snprintf \
3931 vsnprintf=avpriv_vsnprintf
3932 fi
3933 fi
3934 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3935 # 0x601 by default unless something else is set by the user.
3936 # This can easily lead to us detecting functions only present
3937 # in such new versions and producing binaries requiring windows 7.0.
3938 # Therefore explicitly set the default to XP unless the user has
3939 # set something else on the command line.
3940 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3941 # family. For these cases, configure is free to use any functions
3942 # found in the SDK headers by default. (Alternatively, we could force
3943 # _WIN32_WINNT to 0x0602 in that case.)
3944 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3945 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3946 #ifdef WINAPI_FAMILY
3947 #include <winapifamily.h>
3948 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3949 #error not desktop
3950 #endif
3951 #endif
3952 EOF
3953 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3954 eval ${pfx}libc_type=klibc
3955 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3956 eval ${pfx}libc_type=bionic
3957 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3958 eval ${pfx}libc_type=solaris
3959 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3960 else
3961 eval ${pfx}libc_type=default
3962 add_${pfx}cppflags -D_DEFAULT_SOURCE
3963 fi
3964 }
3965
3966 probe_libc
3967 test -n "$libc_type" && enable libc_$libc_type
3968 probe_libc host_
3969 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3970
3971 case $libc_type in
3972 bionic)
3973 add_compat strtod.o strtod=avpriv_strtod
3974 ;;
3975 esac
3976
3977 # hacks for compiler/libc/os combinations
3978
3979 if enabled_all tms470 libc_glibc; then
3980 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3981 add_cppflags -D__USER_LABEL_PREFIX__=
3982 add_cppflags -D__builtin_memset=memset
3983 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3984 add_cflags -pds=48 # incompatible redefinition of macro
3985 fi
3986
3987 if enabled_all ccc libc_glibc; then
3988 add_ldflags -Wl,-z,now # calls to libots crash without this
3989 fi
3990
3991 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3992 add_cppflags '-I\$(SRC_PATH)/compat/float'
3993
3994 esc(){
3995 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3996 }
3997
3998 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3999
4000 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4001
4002 set_default $PATHS_LIST
4003 set_default nm
4004
4005 # we need to build at least one lib type
4006 if ! enabled_any static shared; then
4007 cat <<EOF
4008 At least one library type must be built.
4009 Specify --enable-static to build the static libraries or --enable-shared to
4010 build the shared libraries as well. To only build the shared libraries specify
4011 --disable-static in addition to --enable-shared.
4012 EOF
4013 exit 1;
4014 fi
4015
4016 die_license_disabled() {
4017 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4018 }
4019
4020 die_license_disabled gpl libcdio
4021 die_license_disabled gpl libx264
4022 die_license_disabled gpl libx265
4023 die_license_disabled gpl libxavs
4024 die_license_disabled gpl libxvid
4025 die_license_disabled gpl x11grab
4026
4027 die_license_disabled nonfree cuda
4028 die_license_disabled nonfree libfaac
4029 die_license_disabled nonfree libfdk_aac
4030 die_license_disabled nonfree libnpp
4031 die_license_disabled nonfree nvenc
4032 die_license_disabled nonfree openssl
4033
4034 die_license_disabled version3 libopencore_amrnb
4035 die_license_disabled version3 libopencore_amrwb
4036 die_license_disabled version3 libvo_aacenc
4037 die_license_disabled version3 libvo_amrwbenc
4038
4039 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4040
4041 disabled optimizations || check_cflags -fomit-frame-pointer
4042
4043 enable_weak_pic() {
4044 disabled pic && return
4045 enable pic
4046 add_cppflags -DPIC
4047 case "$target_os" in
4048 mingw*|cygwin*)
4049 ;;
4050 *)
4051 add_cflags -fPIC
4052 ;;
4053 esac
4054 add_asflags -fPIC
4055 }
4056
4057 enabled pic && enable_weak_pic
4058
4059 check_cc <<EOF || die "Symbol mangling check failed."
4060 int ff_extern;
4061 EOF
4062 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4063 extern_prefix=${sym%%ff_extern*}
4064
4065 check_cc <<EOF && enable_weak inline_asm
4066 void foo(void) { __asm__ volatile ("" ::); }
4067 EOF
4068
4069 _restrict=
4070 for restrict_keyword in restrict __restrict__ __restrict; do
4071 check_cc <<EOF && _restrict=$restrict_keyword && break
4072 void foo(char * $restrict_keyword p);
4073 EOF
4074 done
4075
4076 check_cc <<EOF && enable pragma_deprecated
4077 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4078 EOF
4079
4080 check_cc <<EOF && enable attribute_packed
4081 struct { int x; } __attribute__((packed)) x;
4082 EOF
4083
4084 check_cc <<EOF && enable attribute_may_alias
4085 union { int x; } __attribute__((may_alias)) x;
4086 EOF
4087
4088 check_cc <<EOF || die "endian test failed"
4089 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4090 EOF
4091 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4092
4093 check_gas() {
4094 log "check_gas using '$as' as AS"
4095 # :vararg is used on aarch64, arm and ppc altivec
4096 check_as <<EOF || return 1
4097 .macro m n, y:vararg=0
4098 \n: .int \y
4099 .endm
4100 m x
4101 EOF
4102 # .altmacro is only used in arm asm
4103 ! enabled arm || check_as <<EOF || return 1
4104 .altmacro
4105 EOF
4106 enable gnu_as
4107 return 0
4108 }
4109
4110 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4111 nogas=:
4112 enabled_any arm aarch64 && nogas=die
4113 enabled_all ppc altivec && nogas=warn
4114 as_noop=-v
4115
4116 case $as_type in
4117 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4118 gcc) gaspp_as_type=gas ;;
4119 *) gaspp_as_type=$as_type ;;
4120 esac
4121
4122 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4123
4124 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4125 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4126
4127 if ! check_gas ; then
4128 as=${gas:=$as}
4129 check_gas || \
4130 $nogas "GNU assembler not found, install/update gas-preprocessor"
4131 fi
4132
4133 check_as <<EOF && enable as_func
4134 .func test
4135 .endfunc
4136 EOF
4137 fi
4138
4139 check_inline_asm inline_asm_labels '"1:\n"'
4140
4141 if enabled aarch64; then
4142 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4143 # internal assembler in clang 3.3 does not support this instruction
4144 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4145 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4146
4147 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4148
4149 elif enabled alpha; then
4150
4151 check_cflags -mieee
4152
4153 elif enabled arm; then
4154
4155 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4156 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4157 enabled thumb && check_cflags -mthumb || check_cflags -marm
4158
4159 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4160 enable vfp_args
4161 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4162 enable vfp_args
4163 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4164 case "${cross_prefix:-$cc}" in
4165 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4166 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4167 __asm__ (".eabi_attribute 28, 1");
4168 int main(void) { return 0; }
4169 EOF
4170 esac
4171 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4172 fi
4173
4174 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4175 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4176 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4177 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4178 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4179 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4180
4181 [ $target_os = linux ] || [ $target_os = android ] ||
4182 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4183 $ARCH_EXT_LIST_ARM
4184
4185 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4186
4187 check_as <<EOF && enable as_dn_directive
4188 ra .dn d0.i16
4189 .unreq ra
4190 EOF
4191
4192 # llvm's integrated assembler supports .object_arch from llvm 3.5
4193 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4194 .object_arch armv4
4195 EOF
4196
4197 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4198
4199 elif enabled mips; then
4200
4201 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4202
4203 # make sure that only an instruction set is enabled
4204 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4205
4206 if enabled mips64; then
4207 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4208 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4209 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4210 else
4211 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4212 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4213 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4214 fi
4215
4216 elif enabled parisc; then
4217
4218 if enabled gcc; then
4219 case $($cc -dumpversion) in
4220 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4221 esac
4222 fi
4223
4224 elif enabled ppc; then
4225
4226 enable local_aligned_8 local_aligned_16
4227
4228 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4229 check_inline_asm ibm_asm '"add 0, 0, 0"'
4230 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4231 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4232
4233 # AltiVec flags: The FSF version of GCC differs from the Apple version
4234 if enabled altivec; then
4235 check_cflags -maltivec -mabi=altivec &&
4236 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4237 check_cflags -faltivec
4238
4239 # check if our compiler supports Motorola AltiVec C API
4240 check_cc <<EOF || disable altivec
4241 $inc_altivec_h
4242 int main(void) {
4243 vector signed int v1 = (vector signed int) { 0 };
4244 vector signed int v2 = (vector signed int) { 1 };
4245 v1 = vec_add(v1, v2);
4246 return 0;
4247 }
4248 EOF
4249
4250 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4251 fi
4252
4253 if enabled vsx; then
4254 check_cflags -mvsx &&
4255 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4256 fi
4257
4258 if enabled power8; then
4259 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4260 fi
4261
4262 elif enabled x86; then
4263
4264 check_builtin rdtsc intrin.h "__rdtsc()"
4265 check_builtin mm_empty mmintrin.h "_mm_empty()"
4266
4267 enable local_aligned_8 local_aligned_16
4268
4269 # check whether EBP is available on x86
4270 # As 'i' is stored on the stack, this program will crash
4271 # if the base pointer is used to access it because the
4272 # base pointer is cleared in the inline assembly code.
4273 check_exec_crash <<EOF && enable ebp_available
4274 volatile int i=0;
4275 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4276 return i;
4277 EOF
4278
4279 # check whether EBX is available on x86
4280 check_inline_asm ebx_available '""::"b"(0)' &&
4281 check_inline_asm ebx_available '"":::"%ebx"'
4282
4283 # check whether xmm clobbers are supported
4284 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4285
4286 # check whether binutils is new enough to compile SSSE3/MMXEXT
4287 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4288 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4289
4290 if ! disabled_any asm mmx yasm; then
4291 if check_cmd $yasmexe --version; then
4292 enabled x86_64 && yasm_extra="-m amd64"
4293 yasm_debug="-g dwarf2"
4294 elif check_cmd nasm -v; then
4295 yasmexe=nasm
4296 yasm_debug="-g -F dwarf"
4297 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4298 fi
4299
4300 YASMFLAGS="-f $objformat $yasm_extra"
4301 enabled pic && append YASMFLAGS "-DPIC"
4302 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4303 case "$objformat" in
4304 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4305 esac
4306
4307 check_yasm "movbe ecx, [5]" && enable yasm ||
4308 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4309 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4310 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4311 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4312 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4313 check_yasm "CPU amdnop" || disable cpunop
4314 fi
4315
4316 case "$cpu" in
4317 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4318 disable fast_clz
4319 ;;
4320 esac
4321
4322 fi
4323
4324 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4325
4326 check_ldflags -Wl,--as-needed
4327
4328 if check_func dlopen; then
4329 ldl=
4330 elif check_func dlopen -ldl; then
4331 ldl=-ldl
4332 fi
4333
4334 if ! disabled network; then
4335 check_func getaddrinfo $network_extralibs
4336 check_func inet_aton $network_extralibs
4337
4338 check_type netdb.h "struct addrinfo"
4339 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4340 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4341 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4342 check_type poll.h "struct pollfd"
4343 check_type netinet/sctp.h "struct sctp_event_subscribe"
4344 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4345 check_type netinet/in.h "struct sockaddr_in6"
4346 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4347 check_type "sys/types.h sys/socket.h" socklen_t
4348
4349 # Prefer arpa/inet.h over winsock2
4350 if check_header arpa/inet.h ; then
4351 check_func closesocket
4352 elif check_header winsock2.h ; then
4353 check_func_headers winsock2.h closesocket -lws2 &&
4354 network_extralibs="-lws2" ||
4355 { check_func_headers winsock2.h closesocket -lws2_32 &&
4356 network_extralibs="-lws2_32"; } || disable winsock2_h network
4357 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4358
4359 check_type ws2tcpip.h socklen_t
4360 check_type ws2tcpip.h "struct addrinfo"
4361 check_type ws2tcpip.h "struct group_source_req"
4362 check_type ws2tcpip.h "struct ip_mreq_source"
4363 check_type ws2tcpip.h "struct ipv6_mreq"
4364 check_type winsock2.h "struct pollfd"
4365 check_struct winsock2.h "struct sockaddr" sa_len
4366 check_type ws2tcpip.h "struct sockaddr_in6"
4367 check_type ws2tcpip.h "struct sockaddr_storage"
4368 else
4369 disable network
4370 fi
4371 fi
4372
4373 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4374 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4375 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4376 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4377
4378 case "$custom_allocator" in
4379 jemalloc)
4380 # jemalloc by default does not use a prefix
4381 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4382 ;;
4383 tcmalloc)
4384 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4385 malloc_prefix=tc_
4386 ;;
4387 esac
4388
4389 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4390 check_func ${malloc_prefix}memalign && enable memalign
4391 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4392
4393 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4394 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4395
4396 check_func fcntl