build: Introduce iso_media component
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
178
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
188 and libraw1394 [no]
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
199 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
200 --enable-libopencv enable video filtering via libopencv [no]
201 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
202 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
203 --enable-libopus enable Opus de/encoding via libopus [no]
204 --enable-libpulse enable Pulseaudio input via libpulse [no]
205 --enable-librtmp enable RTMP[E] support via librtmp [no]
206 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
207 --enable-libsnappy enable Snappy compression [no]
208 --enable-libspeex enable Speex de/encoding via libspeex [no]
209 --enable-libtheora enable Theora encoding via libtheora [no]
210 --enable-libtwolame enable MP2 encoding via libtwolame [no]
211 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
212 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
213 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
214 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
215 --enable-libwavpack enable wavpack encoding via libwavpack [no]
216 --enable-libwebp enable WebP encoding via libwebp [no]
217 --enable-libx264 enable H.264 encoding via x264 [no]
218 --enable-libx265 enable HEVC encoding via x265 [no]
219 --enable-libxavs enable AVS encoding via xavs [no]
220 --enable-libxcb enable X11 grabbing using XCB [no]
221 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
222 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
223 --enable-libxvid enable Xvid encoding via xvidcore,
224 native MPEG-4/Xvid encoder exists [no]
225 --enable-mmal enable decoding via MMAL [no]
226 --enable-nvenc enable encoding via NVENC [no]
227 --enable-openssl enable openssl [no]
228 --enable-x11grab enable X11 grabbing (legacy) [no]
229 --enable-zlib enable zlib [autodetect]
230
231 Toolchain options:
232 --arch=ARCH select architecture [$arch]
233 --cpu=CPU select the minimum required CPU (affects
234 instruction selection, may crash on older CPUs)
235 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
236 --enable-cross-compile assume a cross-compiler is used
237 --sysroot=PATH root of cross-build tree
238 --sysinclude=PATH location of cross-build system headers
239 --target-os=OS compiler targets OS [$target_os]
240 --target-exec=CMD command to run executables on target
241 --target-path=DIR path to view of build directory on target
242 --target-samples=DIR path to samples directory on target
243 --toolchain=NAME set tool defaults according to NAME
244 --nm=NM use nm tool
245 --ar=AR use archive tool AR [$ar_default]
246 --as=AS use assembler AS [$as_default]
247 --cc=CC use C compiler CC [$cc_default]
248 --objcc=OCC use ObjC compiler OCC [$cc_default]
249 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
250 --ld=LD use linker LD
251 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
252 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
253 --host-cc=HOSTCC use host C compiler HOSTCC
254 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
255 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
256 --host-ld=HOSTLD use host linker HOSTLD
257 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
258 --host-libs=HLIBS use libs HLIBS when linking for host
259 --host-os=OS compiler host OS [$target_os]
260 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
261 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
262 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
263 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
264 --extra-libs=ELIBS add ELIBS [$ELIBS]
265 --extra-version=STRING version string suffix []
266 --optflags=OPTFLAGS override optimization-related compiler flags
267 --build-suffix=SUFFIX library name suffix []
268 --enable-pic build position-independent code
269 --enable-thumb compile for Thumb instruction set
270 --enable-lto use link-time optimization
271 --env="ENV=override" override the environment variables
272
273 Advanced options (experts only):
274 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
275 --custom-allocator=NAME use a supported custom allocator
276 --disable-symver disable symbol versioning
277 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
278 --disable-safe-bitstream-reader
279 disable buffer boundary checking in bitreaders
280 (faster, but may crash)
281 --enable-memalign-hack emulate memalign, interferes with memory debuggers
282 --enable-sram allow use of on-chip SRAM
283
284 Optimization options (experts only):
285 --disable-asm disable all assembly optimizations
286 --disable-altivec disable AltiVec optimizations
287 --disable-vsx disable VSX optimizations
288 --disable-power8 disable POWER8 optimizations
289 --disable-amd3dnow disable 3DNow! optimizations
290 --disable-amd3dnowext disable 3DNow! extended optimizations
291 --disable-mmx disable MMX optimizations
292 --disable-mmxext disable MMXEXT optimizations
293 --disable-sse disable SSE optimizations
294 --disable-sse2 disable SSE2 optimizations
295 --disable-sse3 disable SSE3 optimizations
296 --disable-ssse3 disable SSSE3 optimizations
297 --disable-sse4 disable SSE4 optimizations
298 --disable-sse42 disable SSE4.2 optimizations
299 --disable-avx disable AVX optimizations
300 --disable-xop disable XOP optimizations
301 --disable-fma3 disable FMA3 optimizations
302 --disable-fma4 disable FMA4 optimizations
303 --disable-avx2 disable AVX2 optimizations
304 --disable-armv5te disable armv5te optimizations
305 --disable-armv6 disable armv6 optimizations
306 --disable-armv6t2 disable armv6t2 optimizations
307 --disable-vfp disable VFP optimizations
308 --disable-neon disable NEON optimizations
309 --disable-inline-asm disable use of inline assembly
310 --disable-yasm disable use of nasm/yasm assembly
311
312 Developer options (useful when working on Libav itself):
313 --disable-debug disable debugging symbols
314 --enable-debug=LEVEL set the debug level [$debuglevel]
315 --disable-optimizations disable compiler optimizations
316 --enable-extra-warnings enable more compiler warnings
317 --samples=PATH location of test samples for FATE, if not set use
318 \$LIBAV_SAMPLES at make invocation time.
319 --enable-neon-clobber-test check NEON registers for clobbering (should be
320 used only for debugging purposes)
321 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
322 should be used only for debugging purposes)
323 --enable-random randomly enable/disable components
324 --disable-random
325 --enable-random=LIST randomly enable/disable specific components or
326 --disable-random=LIST component groups. LIST is a comma-separated list
327 of NAME[:PROB] entries where NAME is a component
328 (group) and PROB the probability associated with
329 NAME (default 0.5).
330 --random-seed=VALUE seed value for --enable/disable-random
331 --disable-valgrind-backtrace do not print a backtrace under Valgrind
332 (only applies to --disable-optimizations builds)
333
334 NOTE: Object files are built at the place where configure is launched.
335 EOF
336 exit 0
337 }
338
339 quotes='""'
340
341 log(){
342 echo "$@" >> $logfile
343 }
344
345 log_file(){
346 log BEGIN $1
347 i=1
348 while read line; do
349 printf '%5s %s\n' "${i}" "${line}"
350 i=$(($i+1))
351 done < $1 >> $logfile
352 log END $1
353 }
354
355 echolog(){
356 log "$@"
357 echo "$@"
358 }
359
360 warn(){
361 log "WARNING: $*"
362 WARNINGS="${WARNINGS}WARNING: $*\n"
363 }
364
365 die(){
366 echolog "$@"
367 cat <<EOF
368
369 If you think configure made a mistake, make sure you are using the latest
370 version from Git. If the latest version fails, report the problem to the
371 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
372 EOF
373 if disabled logging; then
374 cat <<EOF
375 Rerun configure with logging enabled (do not use --disable-logging), and
376 include the log this produces with your report.
377 EOF
378 else
379 cat <<EOF
380 Include the log file "$logfile" produced by configure as this will help
381 solving the problem.
382 EOF
383 fi
384 exit 1
385 }
386
387 # Avoid locale weirdness, besides we really just want to translate ASCII.
388 toupper(){
389 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
390 }
391
392 tolower(){
393 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
394 }
395
396 c_escape(){
397 echo "$*" | sed 's/["\\]/\\\0/g'
398 }
399
400 sh_quote(){
401 v=$(echo "$1" | sed "s/'/'\\\\''/g")
402 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
403 echo "$v"
404 }
405
406 cleanws(){
407 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
408 }
409
410 filter(){
411 pat=$1
412 shift
413 for v; do
414 eval "case $v in $pat) echo $v ;; esac"
415 done
416 }
417
418 filter_out(){
419 pat=$1
420 shift
421 for v; do
422 eval "case $v in $pat) ;; *) echo $v ;; esac"
423 done
424 }
425
426 map(){
427 m=$1
428 shift
429 for v; do eval $m; done
430 }
431
432 add_suffix(){
433 suffix=$1
434 shift
435 for v; do echo ${v}${suffix}; done
436 }
437
438 set_all(){
439 value=$1
440 shift
441 for var in $*; do
442 eval $var=$value
443 done
444 }
445
446 set_weak(){
447 value=$1
448 shift
449 for var; do
450 eval : \${$var:=$value}
451 done
452 }
453
454 sanitize_var_name(){
455 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
456 }
457
458 set_safe(){
459 var=$1
460 shift
461 eval $(sanitize_var_name "$var")='$*'
462 }
463
464 get_safe(){
465 eval echo \$$(sanitize_var_name "$1")
466 }
467
468 pushvar(){
469 for pvar in $*; do
470 eval level=\${${pvar}_level:=0}
471 eval ${pvar}_${level}="\$$pvar"
472 eval ${pvar}_level=$(($level+1))
473 done
474 }
475
476 popvar(){
477 for pvar in $*; do
478 eval level=\${${pvar}_level:-0}
479 test $level = 0 && continue
480 eval level=$(($level-1))
481 eval $pvar="\${${pvar}_${level}}"
482 eval ${pvar}_level=$level
483 eval unset ${pvar}_${level}
484 done
485 }
486
487 enable(){
488 set_all yes $*
489 }
490
491 check_requested() {
492 for var; do
493 eval test "x\$${var#!}_requested" = "xyes" && die "${var%%_*} cannot be enabled"
494 done
495 }
496
497 disable(){
498 set_all no $*
499 check_requested $*
500 }
501
502 enable_weak(){
503 set_weak yes $*
504 }
505
506 disable_weak(){
507 set_weak no $*
508 }
509
510 enable_safe(){
511 for var; do
512 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
513 done
514 }
515
516 disable_safe(){
517 for var; do
518 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
519 done
520 }
521
522 do_enable_deep(){
523 for var; do
524 enabled $var && continue
525 eval sel="\$${var}_select"
526 eval sgs="\$${var}_suggest"
527 pushvar var sgs
528 enable_deep $sel
529 popvar sgs
530 enable_deep_weak $sgs
531 popvar var
532 done
533 }
534
535 enable_deep(){
536 do_enable_deep $*
537 enable $*
538 }
539
540 enable_deep_weak(){
541 for var; do
542 disabled $var && continue
543 pushvar var
544 do_enable_deep $var
545 popvar var
546 enable_weak $var
547 done
548 }
549
550 do_enable_deep_force(){
551 for var; do
552 enabled $var && continue
553 eval sel="\$${var}_deps\ \$${var}_deps_any\ \$${var}_select\ \$${var}_suggest\ \$${var}_select_any"
554 pushvar var
555 enable_deep_force $sel
556 popvar var
557 done
558 }
559
560 enable_deep_force(){
561 do_enable_deep_force $*
562 for var; do
563 is_in $var $ALL_COMPONENTS $COMPONENT_LIST $LIBRARY_LIST && enable $var
564 done
565 }
566
567 request(){
568 disable $* # force the refresh of the dependencies
569 for var; do
570 enable ${var}_requested
571 done
572 enable_deep_force $*
573 enable $*
574 }
575
576 enabled(){
577 test "${1#!}" = "$1" && op== || op=!=
578 eval test "x\$${1#!}" $op "xyes"
579 }
580
581 disabled(){
582 test "${1#!}" = "$1" && op== || op=!=
583 eval test "x\$${1#!}" $op "xno"
584 }
585
586 enabled_all(){
587 for opt; do
588 enabled $opt || return 1
589 done
590 }
591
592 disabled_all(){
593 for opt; do
594 disabled $opt || return 1
595 done
596 }
597
598 enabled_any(){
599 for opt; do
600 enabled $opt && return 0
601 done
602 }
603
604 disabled_any(){
605 for opt; do
606 disabled $opt && return 0
607 done
608 return 1
609 }
610
611 set_default(){
612 for opt; do
613 eval : \${$opt:=\$${opt}_default}
614 done
615 }
616
617 is_in(){
618 value=$1
619 shift
620 for var in $*; do
621 [ $var = $value ] && return 0
622 done
623 return 1
624 }
625
626 do_check_deps(){
627 for cfg; do
628 cfg="${cfg#!}"
629 enabled ${cfg}_checking && die "Circular dependency for $cfg."
630 disabled ${cfg}_checking && continue
631 enable ${cfg}_checking
632 append allopts $cfg
633
634 eval dep_all="\$${cfg}_deps"
635 eval dep_any="\$${cfg}_deps_any\ \$${cfg}_select_any"
636 eval dep_sel="\$${cfg}_select"
637 eval dep_sgs="\$${cfg}_suggest"
638 eval dep_ifa="\$${cfg}_if"
639 eval dep_ifn="\$${cfg}_if_any"
640
641 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
642 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
643 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
644
645 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
646 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
647 enabled_all $dep_all || disable $cfg
648 enabled_any $dep_any || disable $cfg
649 disabled_any $dep_sel && disable $cfg
650
651 if enabled $cfg; then
652 enable_deep $dep_sel
653 enable_deep_weak $dep_sgs
654 fi
655
656 disable ${cfg}_checking
657 done
658 }
659
660 check_deps(){
661 unset allopts
662
663 do_check_deps "$@"
664
665 for cfg in $allopts; do
666 enabled $cfg || continue
667 eval dep_extralibs="\$${cfg}_extralibs"
668 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
669 done
670 }
671
672 print_config(){
673 pfx=$1
674 files=$2
675 shift 2
676 map 'eval echo "$v \${$v:-no}"' "$@" |
677 awk "BEGIN { split(\"$files\", files) }
678 {
679 c = \"$pfx\" toupper(\$1);
680 v = \$2;
681 sub(/yes/, 1, v);
682 sub(/no/, 0, v);
683 for (f in files) {
684 file = files[f];
685 if (file ~ /\\.h\$/) {
686 printf(\"#define %s %d\\n\", c, v) >>file;
687 } else if (file ~ /\\.asm\$/) {
688 printf(\"%%define %s %d\\n\", c, v) >>file;
689 } else if (file ~ /\\.mak\$/) {
690 n = -v ? \"\" : \"!\";
691 printf(\"%s%s=yes\\n\", n, c) >>file;
692 }
693 }
694 }"
695 }
696
697 print_enabled(){
698 suf=$1
699 shift
700 for v; do
701 enabled $v && printf "%s\n" ${v%$suf};
702 done
703 }
704
705 append(){
706 var=$1
707 shift
708 eval "$var=\"\$$var $*\""
709 }
710
711 prepend(){
712 var=$1
713 shift
714 eval "$var=\"$* \$$var\""
715 }
716
717 unique(){
718 var=$1
719 uniq_list=""
720 for tok in $(eval echo \$$var); do
721 uniq_list="$(filter_out $tok $uniq_list) $tok"
722 done
723 eval "$var=\"${uniq_list}\""
724 }
725
726 add_cppflags(){
727 append CPPFLAGS "$@"
728 }
729
730 add_cflags(){
731 append CFLAGS $($cflags_filter "$@")
732 }
733
734 add_asflags(){
735 append ASFLAGS $($asflags_filter "$@")
736 }
737
738 add_objcflags(){
739 append OBJCFLAGS $($objcflags_filter "$@")
740 }
741
742 add_ldflags(){
743 append LDFLAGS $($ldflags_filter "$@")
744 }
745
746 add_ldexeflags(){
747 append LDEXEFLAGS $($ldflags_filter "$@")
748 }
749
750 add_stripflags(){
751 append STRIPFLAGS "$@"
752 }
753
754 add_extralibs(){
755 prepend extralibs $($ldflags_filter "$@")
756 }
757
758 add_host_cppflags(){
759 append host_cppflags "$@"
760 }
761
762 add_host_cflags(){
763 append host_cflags $($host_cflags_filter "$@")
764 }
765
766 add_host_ldflags(){
767 append host_ldflags $($host_ldflags_filter "$@")
768 }
769
770 add_compat(){
771 append compat_objs $1
772 shift
773 map 'add_cppflags -D$v' "$@"
774 }
775
776 check_cmd(){
777 log "$@"
778 "$@" >> $logfile 2>&1
779 }
780
781 cc_o(){
782 eval printf '%s\\n' $CC_O
783 }
784
785 cc_e(){
786 eval printf '%s\\n' $CC_E
787 }
788
789 check_cc(){
790 log check_cc "$@"
791 cat > $TMPC
792 log_file $TMPC
793 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
794 }
795
796 check_objcc(){
797 log check_objcc "$@"
798 cat > $TMPC
799 log_file $TMPC
800 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
801 }
802
803 check_cpp(){
804 log check_cpp "$@"
805 cat > $TMPC
806 log_file $TMPC
807 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
808 }
809
810 as_o(){
811 eval printf '%s\\n' $AS_O
812 }
813
814 check_as(){
815 log check_as "$@"
816 cat > $TMPS
817 log_file $TMPS
818 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
819 }
820
821 check_inline_asm(){
822 log check_inline_asm "$@"
823 name="$1"
824 code="$2"
825 shift 2
826 disable $name
827 check_cc "$@" <<EOF && enable $name
828 void foo(void){ __asm__ volatile($code); }
829 EOF
830 }
831
832 check_insn(){
833 log check_insn "$@"
834 check_inline_asm ${1}_inline "\"$2\""
835 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
836 }
837
838 check_yasm(){
839 log check_yasm "$@"
840 echo "$1" > $TMPS
841 log_file $TMPS
842 shift 1
843 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
844 }
845
846 ld_o(){
847 eval printf '%s\\n' $LD_O
848 }
849
850 check_ld(){
851 log check_ld "$@"
852 flags=$(filter_out '-l*' "$@")
853 libs=$(filter '-l*' "$@")
854 check_cc $($cflags_filter $flags) || return
855 flags=$($ldflags_filter $flags)
856 libs=$($ldflags_filter $libs)
857 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
858 }
859
860 print_include(){
861 hdr=$1
862 test "${hdr%.h}" = "${hdr}" &&
863 echo "#include $hdr" ||
864 echo "#include <$hdr>"
865 }
866
867 check_code(){
868 log check_code "$@"
869 check=$1
870 headers=$2
871 code=$3
872 shift 3
873 {
874 for hdr in $headers; do
875 print_include $hdr
876 done
877 echo "int main(void) { $code; return 0; }"
878 } | check_$check "$@"
879 }
880
881 check_cppflags(){
882 log check_cppflags "$@"
883 check_cc "$@" <<EOF && append CPPFLAGS "$@"
884 int x;
885 EOF
886 }
887
888 test_cflags(){
889 log test_cflags "$@"
890 set -- $($cflags_filter "$@")
891 check_cc "$@" <<EOF
892 int x;
893 EOF
894 }
895
896 check_cflags(){
897 log check_cflags "$@"
898 test_cflags "$@" && add_cflags "$@"
899 }
900
901 test_objcflags(){
902 log test_cflags "$@"
903 set -- $($cflags_filter "$@")
904 check_objcc "$@" <<EOF
905 int x;
906 EOF
907 }
908
909 check_objcflags(){
910 log check_cflags "$@"
911 test_objcflags "$@" && add_objcflags "$@"
912 }
913
914 test_ldflags(){
915 log test_ldflags "$@"
916 check_ld "$@" <<EOF
917 int main(void){ return 0; }
918 EOF
919 }
920
921 check_ldflags(){
922 log check_ldflags "$@"
923 test_ldflags "$@" && add_ldflags "$@"
924 }
925
926 test_stripflags(){
927 log test_stripflags "$@"
928 # call check_cc to get a fresh TMPO
929 check_cc <<EOF
930 int main(void) { return 0; }
931 EOF
932 check_cmd $strip $STRIPFLAGS "$@" $TMPO
933 }
934
935 check_stripflags(){
936 log check_stripflags "$@"
937 test_stripflags "$@" && add_stripflags "$@"
938 }
939
940 check_header(){
941 log check_header "$@"
942 header=$1
943 shift
944 disable_safe $header
945 check_cpp "$@" <<EOF && enable_safe $header
946 #include <$header>
947 int x;
948 EOF
949 }
950
951 check_func(){
952 log check_func "$@"
953 func=$1
954 shift
955 disable $func
956 check_ld "$@" <<EOF && enable $func
957 extern int $func();
958 int main(void){ $func(); }
959 EOF
960 }
961
962 check_mathfunc(){
963 log check_mathfunc "$@"
964 func=$1
965 narg=$2
966 shift 2
967 test $narg = 2 && args="f, g" || args="f"
968 disable $func
969 check_ld "$@" <<EOF && enable $func
970 #include <math.h>
971 float foo(float f, float g) { return $func($args); }
972 int main(void){ return 0; }
973 EOF
974 }
975
976 check_func_headers(){
977 log check_func_headers "$@"
978 headers=$1
979 funcs=$2
980 shift 2
981 {
982 for hdr in $headers; do
983 print_include $hdr
984 done
985 for func in $funcs; do
986 echo "long check_$func(void) { return (long) $func; }"
987 done
988 echo "int main(void) { return 0; }"
989 } | check_ld "$@" && enable $funcs && enable_safe $headers
990 }
991
992 check_cpp_condition(){
993 log check_cpp_condition "$@"
994 header=$1
995 condition=$2
996 shift 2
997 check_cpp "$@" <<EOF
998 #include <$header>
999 #if !($condition)
1000 #error "unsatisfied condition: $condition"
1001 #endif
1002 EOF
1003 }
1004
1005 check_lib(){
1006 log check_lib "$@"
1007 header="$1"
1008 func="$2"
1009 shift 2
1010 check_header $header && check_func $func "$@" && add_extralibs "$@"
1011 }
1012
1013 check_lib2(){
1014 log check_lib2 "$@"
1015 headers="$1"
1016 funcs="$2"
1017 shift 2
1018 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1019 }
1020
1021 check_pkg_config(){
1022 log check_pkg_config "$@"
1023 pkg="$1"
1024 headers="$2"
1025 funcs="$3"
1026 shift 3
1027 check_cmd $pkg_config --exists --print-errors $pkg || return
1028 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1029 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1030 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1031 set_safe "${pkg}_cflags" $pkg_cflags &&
1032 set_safe "${pkg}_libs" $pkg_libs
1033 }
1034
1035 check_exec(){
1036 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1037 }
1038
1039 check_exec_crash(){
1040 code=$(cat)
1041
1042 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1043 # are safe but may not be available everywhere. Thus we use
1044 # raise(SIGTERM) instead. The check is run in a subshell so we
1045 # can redirect the "Terminated" message from the shell. SIGBUS
1046 # is not defined by standard C so it is used conditionally.
1047
1048 (check_exec "$@") >> $logfile 2>&1 <<EOF
1049 #include <signal.h>
1050 static void sighandler(int sig){
1051 raise(SIGTERM);
1052 }
1053 int foo(void){
1054 $code
1055 }
1056 int (*func_ptr)(void) = foo;
1057 int main(void){
1058 signal(SIGILL, sighandler);
1059 signal(SIGFPE, sighandler);
1060 signal(SIGSEGV, sighandler);
1061 #ifdef SIGBUS
1062 signal(SIGBUS, sighandler);
1063 #endif
1064 return func_ptr();
1065 }
1066 EOF
1067 }
1068
1069 check_type(){
1070 log check_type "$@"
1071 headers=$1
1072 type=$2
1073 shift 2
1074 disable_safe "$type"
1075 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1076 }
1077
1078 check_struct(){
1079 log check_struct "$@"
1080 headers=$1
1081 struct=$2
1082 member=$3
1083 shift 3
1084 disable_safe "${struct}_${member}"
1085 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1086 enable_safe "${struct}_${member}"
1087 }
1088
1089 check_builtin(){
1090 log check_builtin "$@"
1091 name=$1
1092 headers=$2
1093 builtin=$3
1094 shift 3
1095 disable "$name"
1096 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1097 }
1098
1099 check_compile_assert(){
1100 log check_compile_assert "$@"
1101 name=$1
1102 headers=$2
1103 condition=$3
1104 shift 3
1105 disable "$name"
1106 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1107 }
1108
1109 require(){
1110 name="$1"
1111 header="$2"
1112 func="$3"
1113 shift 3
1114 check_lib $header $func "$@" || die "ERROR: $name not found"
1115 }
1116
1117 require2(){
1118 name="$1"
1119 headers="$2"
1120 func="$3"
1121 shift 3
1122 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1123 }
1124
1125 require_pkg_config(){
1126 pkg="$1"
1127 check_pkg_config "$@" || die "ERROR: $pkg not found"
1128 add_cflags $(get_safe "${pkg}_cflags")
1129 add_extralibs $(get_safe "${pkg}_libs")
1130 }
1131
1132 hostcc_e(){
1133 eval printf '%s\\n' $HOSTCC_E
1134 }
1135
1136 hostcc_o(){
1137 eval printf '%s\\n' $HOSTCC_O
1138 }
1139
1140 check_host_cc(){
1141 log check_host_cc "$@"
1142 cat > $TMPC
1143 log_file $TMPC
1144 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1145 }
1146
1147 check_host_cpp(){
1148 log check_host_cpp "$@"
1149 cat > $TMPC
1150 log_file $TMPC
1151 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1152 }
1153
1154 check_host_cppflags(){
1155 log check_host_cppflags "$@"
1156 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1157 int x;
1158 EOF
1159 }
1160
1161 check_host_cflags(){
1162 log check_host_cflags "$@"
1163 set -- $($host_cflags_filter "$@")
1164 check_host_cc "$@" <<EOF && append host_cflags "$@"
1165 int x;
1166 EOF
1167 }
1168
1169 check_host_cpp_condition(){
1170 log check_host_cpp_condition "$@"
1171 header=$1
1172 condition=$2
1173 shift 2
1174 check_host_cpp "$@" <<EOF
1175 #include <$header>
1176 #if !($condition)
1177 #error "unsatisfied condition: $condition"
1178 #endif
1179 EOF
1180 }
1181
1182 apply(){
1183 file=$1
1184 shift
1185 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1186 }
1187
1188 cp_if_changed(){
1189 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1190 mkdir -p "$(dirname $2)"
1191 $cp_f "$1" "$2"
1192 }
1193
1194 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1195 # system-dependent things.
1196
1197 AVCODEC_COMPONENTS="
1198 bsfs
1199 decoders
1200 encoders
1201 hwaccels
1202 parsers
1203 "
1204
1205 AVDEVICE_COMPONENTS="
1206 indevs
1207 outdevs
1208 "
1209 AVFILTER_COMPONENTS="
1210 filters
1211 "
1212 AVFORMAT_COMPONENTS="
1213 demuxers
1214 muxers
1215 protocols
1216 "
1217
1218 AVRESAMPLE_COMPONENTS=""
1219 AVUTIL_COMPONENTS=""
1220
1221 COMPONENT_LIST="
1222 $AVCODEC_COMPONENTS
1223 $AVDEVICE_COMPONENTS
1224 $AVFILTER_COMPONENTS
1225 $AVFORMAT_COMPONENTS
1226 $AVRESAMPLE_COMPONENTS
1227 $AVUTIL_COMPONENTS
1228 "
1229
1230 EXAMPLE_LIST="
1231 avcodec_example
1232 filter_audio_example
1233 metadata_example
1234 output_example
1235 qsvdec_example
1236 transcode_aac_example
1237 "
1238
1239 EXTERNAL_LIBRARY_LIST="
1240 avisynth
1241 bzlib
1242 cuda
1243 frei0r
1244 gnutls
1245 libbs2b
1246 libcdio
1247 libdc1394
1248 libdcadec
1249 libfaac
1250 libfdk_aac
1251 libfontconfig
1252 libfreetype
1253 libgsm
1254 libilbc
1255 libkvazaar
1256 libmfx
1257 libmp3lame
1258 libopencore_amrnb
1259 libopencore_amrwb
1260 libopencv
1261 libopenh264
1262 libopenjpeg
1263 libopus
1264 libpulse
1265 librtmp
1266 libschroedinger
1267 libsnappy
1268 libspeex
1269 libtheora
1270 libtwolame
1271 libvo_aacenc
1272 libvo_amrwbenc
1273 libvorbis
1274 libvpx
1275 libwavpack
1276 libwebp
1277 libx264
1278 libx265
1279 libxavs
1280 libxcb
1281 libxcb_shm
1282 libxcb_xfixes
1283 libxvid
1284 mmal
1285 nvenc
1286 openssl
1287 x11grab
1288 zlib
1289 "
1290
1291 FEATURE_LIST="
1292 gray
1293 hardcoded_tables
1294 runtime_cpudetect
1295 safe_bitstream_reader
1296 shared
1297 small
1298 sram
1299 static
1300 swscale_alpha
1301 "
1302
1303 HWACCEL_LIST="
1304 d3d11va
1305 dxva2
1306 vaapi
1307 vda
1308 vdpau
1309 "
1310
1311 LIBRARY_LIST="
1312 avcodec
1313 avdevice
1314 avfilter
1315 avformat
1316 avresample
1317 avutil
1318 swscale
1319 "
1320
1321 LICENSE_LIST="
1322 gpl
1323 nonfree
1324 version3
1325 "
1326
1327 PROGRAM_LIST="
1328 avconv
1329 avplay
1330 avprobe
1331 "
1332
1333 SUBSYSTEM_LIST="
1334 dct
1335 doc
1336 error_resilience
1337 faan
1338 fft
1339 lsp
1340 lzo
1341 mdct
1342 network
1343 rdft
1344 "
1345
1346 CONFIG_LIST="
1347 $COMPONENT_LIST
1348 $EXAMPLE_LIST
1349 $EXTERNAL_LIBRARY_LIST
1350 $FEATURE_LIST
1351 $HWACCEL_LIST
1352 $LICENSE_LIST
1353 $LIBRARY_LIST
1354 $PROGRAM_LIST
1355 $SUBSYSTEM_LIST
1356 memalign_hack
1357 neon_clobber_test
1358 pic
1359 pod2man
1360 texi2html
1361 thumb
1362 valgrind_backtrace
1363 xmm_clobber_test
1364 "
1365
1366 THREADS_LIST="
1367 pthreads
1368 w32threads
1369 "
1370
1371 ATOMICS_LIST="
1372 atomics_gcc
1373 atomics_suncc
1374 atomics_win32
1375 "
1376
1377 ARCH_LIST="
1378 aarch64
1379 alpha
1380 arm
1381 avr32
1382 avr32_ap
1383 avr32_uc
1384 bfin
1385 ia64
1386 m68k
1387 mips
1388 mips64
1389 parisc
1390 ppc
1391 ppc64
1392 s390
1393 sh4
1394 sparc
1395 sparc64
1396 tilegx
1397 tilepro
1398 tomi
1399 x86
1400 x86_32
1401 x86_64
1402 "
1403
1404 ARCH_EXT_LIST_ARM="
1405 armv5te
1406 armv6
1407 armv6t2
1408 armv8
1409 neon
1410 vfp
1411 vfpv3
1412 "
1413
1414 ARCH_EXT_LIST_X86_SIMD="
1415 amd3dnow
1416 amd3dnowext
1417 avx
1418 avx2
1419 fma3
1420 fma4
1421 mmx
1422 mmxext
1423 sse
1424 sse2
1425 sse3
1426 sse4
1427 sse42
1428 ssse3
1429 xop
1430 "
1431
1432 ARCH_EXT_LIST_PPC="
1433 altivec
1434 dcbzl
1435 ldbrx
1436 power8
1437 ppc4xx
1438 vsx
1439 "
1440
1441 ARCH_EXT_LIST_X86="
1442 $ARCH_EXT_LIST_X86_SIMD
1443 cpunop
1444 i686
1445 "
1446
1447 ARCH_EXT_LIST_MIPS="
1448 loongson
1449 mips32r1
1450 mips64r1
1451 mips32r2
1452 mips64r2
1453 mips32r6
1454 mips64r6
1455 "
1456
1457 ARCH_EXT_LIST="
1458 $ARCH_EXT_LIST_ARM
1459 $ARCH_EXT_LIST_MIPS
1460 $ARCH_EXT_LIST_PPC
1461 $ARCH_EXT_LIST_X86
1462 vis
1463 "
1464
1465 ARCH_FEATURES="
1466 aligned_stack
1467 fast_64bit
1468 fast_clz
1469 fast_cmov
1470 local_aligned_8
1471 local_aligned_16
1472 simd_align_16
1473 "
1474
1475 BUILTIN_LIST="
1476 atomic_cas_ptr
1477 machine_rw_barrier
1478 MemoryBarrier
1479 mm_empty
1480 rdtsc
1481 sync_val_compare_and_swap
1482 "
1483 HAVE_LIST_CMDLINE="
1484 inline_asm
1485 symver
1486 yasm
1487 "
1488
1489 HAVE_LIST_PUB="
1490 bigendian
1491 fast_unaligned
1492 "
1493
1494 HEADERS_LIST="
1495 AVFoundation_AVFoundation_h
1496 alsa_asoundlib_h
1497 altivec_h
1498 arpa_inet_h
1499 cdio_paranoia_h
1500 cdio_paranoia_paranoia_h
1501 dev_bktr_ioctl_bt848_h
1502 dev_bktr_ioctl_meteor_h
1503 dev_ic_bt8xx_h
1504 dev_video_bktr_ioctl_bt848_h
1505 dev_video_meteor_ioctl_meteor_h
1506 direct_h
1507 dlfcn_h
1508 d3d11_h
1509 dxva_h
1510 gsm_h
1511 io_h
1512 mach_mach_time_h
1513 machine_ioctl_bt848_h
1514 machine_ioctl_meteor_h
1515 malloc_h
1516 poll_h
1517 sndio_h
1518 soundcard_h
1519 sys_mman_h
1520 sys_param_h
1521 sys_resource_h
1522 sys_select_h
1523 sys_soundcard_h
1524 sys_time_h
1525 sys_un_h
1526 sys_videoio_h
1527 unistd_h
1528 valgrind_valgrind_h
1529 windows_h
1530 winsock2_h
1531 "
1532
1533 INTRINSICS_LIST="
1534 intrinsics_neon
1535 "
1536
1537 MATH_FUNCS="
1538 atanf
1539 atan2f
1540 cbrtf
1541 cosf
1542 exp2
1543 exp2f
1544 expf
1545 isinf
1546 isnan
1547 ldexpf
1548 llrint
1549 llrintf
1550 log2
1551 log2f
1552 log10f
1553 lrint
1554 lrintf
1555 powf
1556 rint
1557 round
1558 roundf
1559 sinf
1560 trunc
1561 truncf
1562 "
1563
1564 SYSTEM_FUNCS="
1565 aligned_malloc
1566 clock_gettime
1567 closesocket
1568 CommandLineToArgvW
1569 CoTaskMemFree
1570 CryptGenRandom
1571 dlopen
1572 fcntl
1573 flt_lim
1574 fork
1575 getaddrinfo
1576 gethrtime
1577 getopt
1578 GetProcessAffinityMask
1579 GetProcessMemoryInfo
1580 GetProcessTimes
1581 getrusage
1582 GetSystemTimeAsFileTime
1583 gettimeofday
1584 gmtime_r
1585 inet_aton
1586 isatty
1587 jack_port_get_latency_range
1588 LoadLibrary
1589 localtime_r
1590 mach_absolute_time
1591 MapViewOfFile
1592 memalign
1593 mkstemp
1594 mmap
1595 mprotect
1596 nanosleep
1597 posix_memalign
1598 sched_getaffinity
1599 SetConsoleTextAttribute
1600 setmode
1601 setrlimit
1602 Sleep
1603 strerror_r
1604 sysconf
1605 sysctl
1606 usleep
1607 VirtualAlloc
1608 "
1609
1610 TOOLCHAIN_FEATURES="
1611 as_dn_directive
1612 as_func
1613 as_object_arch
1614 asm_mod_q
1615 attribute_may_alias
1616 attribute_packed
1617 ebp_available
1618 ebx_available
1619 gnu_as
1620 ibm_asm
1621 inline_asm_labels
1622 pragma_deprecated
1623 symver_asm_label
1624 symver_gnu_asm
1625 vfp_args
1626 xform_asm
1627 xmm_clobbers
1628 "
1629
1630 TYPES_LIST="
1631 CONDITION_VARIABLE_Ptr
1632 socklen_t
1633 struct_addrinfo
1634 struct_group_source_req
1635 struct_ip_mreq_source
1636 struct_ipv6_mreq
1637 struct_pollfd
1638 struct_rusage_ru_maxrss
1639 struct_sockaddr_in6
1640 struct_sockaddr_sa_len
1641 struct_sockaddr_storage
1642 struct_v4l2_frmivalenum_discrete
1643 "
1644
1645 HAVE_LIST="
1646 $ARCH_EXT_LIST
1647 $(add_suffix _external $ARCH_EXT_LIST)
1648 $(add_suffix _inline $ARCH_EXT_LIST)
1649 $ARCH_FEATURES
1650 $ATOMICS_LIST
1651 $BUILTIN_LIST
1652 $HAVE_LIST_CMDLINE
1653 $HAVE_LIST_PUB
1654 $HEADERS_LIST
1655 $INTRINSICS_LIST
1656 $MATH_FUNCS
1657 $SYSTEM_FUNCS
1658 $THREADS_LIST
1659 $TOOLCHAIN_FEATURES
1660 $TYPES_LIST
1661 atomics_native
1662 dos_paths
1663 dxva2_lib
1664 libc_msvcrt
1665 libdc1394_1
1666 libdc1394_2
1667 sdl
1668 section_data_rel_ro
1669 threads
1670 vaapi_x11
1671 vdpau_x11
1672 xlib
1673 "
1674
1675 # options emitted with CONFIG_ prefix but not available on the command line
1676 CONFIG_EXTRA="
1677 aandcttables
1678 ac3dsp
1679 audio_frame_queue
1680 audiodsp
1681 blockdsp
1682 bswapdsp
1683 cabac
1684 dirac_parse
1685 dvprofile
1686 faandct
1687 faanidct
1688 fdctdsp
1689 flacdsp
1690 fmtconvert
1691 g722dsp
1692 gcrypt
1693 gmp
1694 golomb
1695 gplv3
1696 h263dsp
1697 h264chroma
1698 h264dsp
1699 h264pred
1700 h264qpel
1701 hpeldsp
1702 huffman
1703 huffyuvdsp
1704 huffyuvencdsp
1705 idctdsp
1706 iirfilter
1707 imdct15
1708 intrax8
1709 iso_media
1710 ividsp
1711 jpegtables
1712 libx262
1713 lgplv3
1714 lpc
1715 lzf
1716 me_cmp
1717 mpeg_er
1718 mpegaudio
1719 mpegaudiodsp
1720 mpegvideo
1721 mpegvideoenc
1722 mss34dsp
1723 pixblockdsp
1724 qpeldsp
1725 qsv
1726 qsvdec
1727 qsvenc
1728 rangecoder
1729 riffdec
1730 riffenc
1731 rtpdec
1732 rtpenc_chain
1733 rv34dsp
1734 sinewin
1735 snappy
1736 startcode
1737 texturedsp
1738 texturedspenc
1739 tpeldsp
1740 videodsp
1741 vp3dsp
1742 vp56dsp
1743 vp8dsp
1744 wma_freqs
1745 wmv2dsp
1746 "
1747
1748 CMDLINE_SELECT="
1749 $ARCH_EXT_LIST
1750 $CONFIG_LIST
1751 $HAVE_LIST_CMDLINE
1752 $THREADS_LIST
1753 asm
1754 cross_compile
1755 debug
1756 extra_warnings
1757 logging
1758 lto
1759 optimizations
1760 rpath
1761 "
1762
1763 PATHS_LIST="
1764 bindir
1765 datadir
1766 docdir
1767 incdir
1768 libdir
1769 mandir
1770 prefix
1771 shlibdir
1772 "
1773
1774 CMDLINE_SET="
1775 $PATHS_LIST
1776 ar
1777 arch
1778 as
1779 build_suffix
1780 cc
1781 objcc
1782 cpu
1783 cross_prefix
1784 custom_allocator
1785 dep_cc
1786 env
1787 extra_version
1788 host_cc
1789 host_cflags
1790 host_ld
1791 host_ldflags
1792 host_libs
1793 host_os
1794 ld
1795 logfile
1796 malloc_prefix
1797 nm
1798 optflags
1799 pkg_config
1800 pkg_config_flags
1801 random_seed
1802 samples
1803 sysinclude
1804 sysroot
1805 target_exec
1806 target_os
1807 target_path
1808 target_samples
1809 toolchain
1810 "
1811
1812 CMDLINE_APPEND="
1813 extra_cflags
1814 extra_objcflags
1815 host_cppflags
1816 "
1817
1818 # code dependency declarations
1819
1820 # architecture extensions
1821
1822 armv5te_deps="arm"
1823 armv6_deps="arm"
1824 armv6t2_deps="arm"
1825 armv8_deps="aarch64"
1826 neon_deps_any="aarch64 arm"
1827 intrinsics_neon_deps="neon"
1828 vfp_deps_any="aarch64 arm"
1829 vfpv3_deps="vfp"
1830
1831 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1832
1833 altivec_deps="ppc"
1834 ppc4xx_deps="ppc"
1835 vsx_deps="altivec"
1836 power8_deps="vsx"
1837
1838 cpunop_deps="i686"
1839 x86_64_select="i686"
1840 x86_64_suggest="fast_cmov"
1841
1842 amd3dnow_deps="mmx"
1843 amd3dnowext_deps="amd3dnow"
1844 i686_deps="x86"
1845 mmx_deps="x86"
1846 mmxext_deps="mmx"
1847 sse_deps="mmxext"
1848 sse2_deps="sse"
1849 sse3_deps="sse2"
1850 ssse3_deps="sse3"
1851 sse4_deps="ssse3"
1852 sse42_deps="sse4"
1853 avx_deps="sse42"
1854 xop_deps="avx"
1855 fma3_deps="avx"
1856 fma4_deps="avx"
1857 avx2_deps="avx"
1858
1859 mmx_external_deps="yasm"
1860 mmx_inline_deps="inline_asm"
1861 mmx_suggest="mmx_external mmx_inline"
1862
1863 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1864 eval dep=\$${ext}_deps
1865 eval ${ext}_external_deps='"${dep}_external"'
1866 eval ${ext}_inline_deps='"${dep}_inline"'
1867 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1868 done
1869
1870 aligned_stack_if_any="aarch64 ppc x86"
1871 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1872 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1873 fast_unaligned_if_any="aarch64 ppc x86"
1874 simd_align_16_if_any="altivec neon sse"
1875
1876 # system capabilities
1877 symver_if_any="symver_asm_label symver_gnu_asm"
1878 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1879
1880 # threading support
1881 atomics_gcc_if="sync_val_compare_and_swap"
1882 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1883 atomics_win32_if="MemoryBarrier"
1884 atomics_native_if_any="$ATOMICS_LIST"
1885 w32threads_deps="atomics_native"
1886 threads_if_any="$THREADS_LIST"
1887
1888 # subsystems
1889 dct_select="rdft"
1890 dirac_parse_select="golomb"
1891 error_resilience_select="me_cmp"
1892 faandct_deps="faan fdctdsp"
1893 faanidct_deps="faan idctdsp"
1894 intrax8_select="error_resilience"
1895 mdct_select="fft"
1896 rdft_select="fft"
1897 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1898 mpeg_er_select="error_resilience"
1899 mpegaudio_select="mpegaudiodsp"
1900 mpegaudiodsp_select="dct"
1901 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1902 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1903 nvenc_deps_any="dlopen LoadLibrary"
1904 nvenc_extralibs='$ldl'
1905 qsvdec_select="qsv"
1906 qsvenc_select="qsv"
1907
1908 # decoders / encoders
1909 aac_decoder_select="imdct15 mdct sinewin"
1910 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1911 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1912 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1913 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1914 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1915 adpcm_g722_decoder_select="g722dsp"
1916 adpcm_g722_encoder_select="g722dsp"
1917 aic_decoder_select="golomb idctdsp"
1918 alac_encoder_select="lpc"
1919 als_decoder_select="bswapdsp"
1920 amrnb_decoder_select="lsp"
1921 amrwb_decoder_select="lsp"
1922 amv_decoder_select="sp5x_decoder"
1923 ape_decoder_select="bswapdsp"
1924 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1925 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1926 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1927 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1928 atrac1_decoder_select="mdct sinewin"
1929 atrac3_decoder_select="mdct"
1930 atrac3p_decoder_select="mdct sinewin"
1931 bink_decoder_select="blockdsp hpeldsp"
1932 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1933 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1934 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1935 cllc_decoder_select="bswapdsp"
1936 comfortnoise_encoder_select="lpc"
1937 cook_decoder_select="audiodsp mdct sinewin"
1938 cscd_decoder_select="lzo"
1939 cscd_decoder_suggest="zlib"
1940 dca_decoder_select="fmtconvert mdct"
1941 dds_decoder_select="texturedsp"
1942 dnxhd_decoder_select="blockdsp idctdsp"
1943 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1944 dvvideo_decoder_select="dvprofile idctdsp"
1945 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1946 dxa_decoder_deps="zlib"
1947 dxv_decoder_select="lzf texturedsp"
1948 eac3_decoder_select="ac3_decoder"
1949 eac3_encoder_select="ac3_encoder"
1950 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1951 eatgq_decoder_select="aandcttables idctdsp"
1952 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1953 exr_decoder_deps="zlib"
1954 ffv1_decoder_select="golomb rangecoder"
1955 ffv1_encoder_select="rangecoder"
1956 ffvhuff_decoder_select="huffyuv_decoder"
1957 ffvhuff_encoder_select="huffyuv_encoder"
1958 fic_decoder_select="golomb"
1959 flac_decoder_select="flacdsp golomb"
1960 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1961 flashsv_decoder_deps="zlib"
1962 flashsv_encoder_deps="zlib"
1963 flashsv2_decoder_deps="zlib"
1964 flv_decoder_select="h263_decoder"
1965 flv_encoder_select="h263_encoder"
1966 fourxm_decoder_select="blockdsp bswapdsp"
1967 fraps_decoder_select="bswapdsp huffman"
1968 g2m_decoder_deps="zlib"
1969 g2m_decoder_select="blockdsp idctdsp jpegtables"
1970 h261_decoder_select="mpeg_er mpegvideo"
1971 h261_encoder_select="aandcttables mpegvideoenc"
1972 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1973 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1974 h263i_decoder_select="h263_decoder"
1975 h263p_encoder_select="h263_encoder"
1976 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1977 h264_decoder_suggest="error_resilience"
1978 h264_nvenc_encoder_deps="nvenc"
1979 h264_qsv_decoder_deps="libmfx"
1980 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1981 h264_qsv_encoder_deps="libmfx"
1982 h264_qsv_encoder_select="qsvenc"
1983 hap_decoder_select="snappy texturedsp"
1984 hap_encoder_deps="libsnappy"
1985 hap_encoder_select="texturedspenc"
1986 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1987 hevc_nvenc_encoder_deps="nvenc"
1988 hevc_qsv_encoder_deps="libmfx"
1989 hevc_qsv_decoder_deps="libmfx"
1990 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1991 hevc_qsv_encoder_select="qsvenc"
1992 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1993 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1994 iac_decoder_select="imc_decoder"
1995 imc_decoder_select="bswapdsp fft mdct sinewin"
1996 indeo3_decoder_select="hpeldsp"
1997 indeo4_decoder_select="ividsp"
1998 indeo5_decoder_select="ividsp"
1999 interplay_video_decoder_select="hpeldsp"
2000 jpegls_decoder_select="golomb mjpeg_decoder"
2001 jpegls_encoder_select="golomb"
2002 jv_decoder_select="blockdsp"
2003 lagarith_decoder_select="huffyuvdsp"
2004 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2005 loco_decoder_select="golomb"
2006 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2007 metasound_decoder_select="lsp mdct sinewin"
2008 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2009 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2010 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2011 mjpegb_decoder_select="mjpeg_decoder"
2012 mlp_decoder_select="mlp_parser"
2013 motionpixels_decoder_select="bswapdsp"
2014 mp1_decoder_select="mpegaudio"
2015 mp1float_decoder_select="mpegaudio"
2016 mp2_decoder_select="mpegaudio"
2017 mp2float_decoder_select="mpegaudio"
2018 mp3_decoder_select="mpegaudio"
2019 mp3adu_decoder_select="mpegaudio"
2020 mp3adufloat_decoder_select="mpegaudio"
2021 mp3float_decoder_select="mpegaudio"
2022 mp3on4_decoder_select="mpegaudio"
2023 mp3on4float_decoder_select="mpegaudio"
2024 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2025 mpc8_decoder_select="mpegaudiodsp"
2026 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2027 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2028 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2029 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2030 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg2_qsv_decoder_deps="libmfx"
2033 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2034 mpeg2_qsv_encoder_deps="libmfx"
2035 mpeg2_qsv_encoder_select="qsvenc"
2036 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2037 mpeg4_encoder_select="h263_encoder"
2038 msa1_decoder_select="mss34dsp"
2039 msmpeg4v1_decoder_select="h263_decoder"
2040 msmpeg4v2_decoder_select="h263_decoder"
2041 msmpeg4v2_encoder_select="h263_encoder"
2042 msmpeg4v3_decoder_select="h263_decoder"
2043 msmpeg4v3_encoder_select="h263_encoder"
2044 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2045 mts2_decoder_select="mss34dsp"
2046 mxpeg_decoder_select="mjpeg_decoder"
2047 nellymoser_decoder_select="mdct sinewin"
2048 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2049 nuv_decoder_select="idctdsp lzo"
2050 nvenc_h264_encoder_deps="nvenc"
2051 nvenc_hevc_encoder_deps="nvenc"
2052 on2avc_decoder_select="mdct"
2053 opus_decoder_deps="avresample"
2054 opus_decoder_select="imdct15"
2055 png_decoder_deps="zlib"
2056 png_encoder_deps="zlib"
2057 png_encoder_select="huffyuvencdsp"
2058 prores_decoder_select="idctdsp"
2059 prores_encoder_select="fdctdsp"
2060 qcelp_decoder_select="lsp"
2061 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2062 ra_144_encoder_select="audio_frame_queue lpc"
2063 ralf_decoder_select="golomb"
2064 rscc_decoder_deps="zlib"
2065 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2066 rv10_encoder_select="h263_encoder"
2067 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2068 rv20_encoder_select="h263_encoder"
2069 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2070 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2071 screenpresso_decoder_deps="zlib"
2072 shorten_decoder_select="golomb"
2073 sipr_decoder_select="lsp"
2074 sp5x_decoder_select="mjpeg_decoder"
2075 svq1_decoder_select="hpeldsp"
2076 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2077 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2078 svq3_decoder_suggest="zlib"
2079 tak_decoder_select="audiodsp"
2080 tdsc_decoder_deps="zlib"
2081 tdsc_decoder_select="mjpeg_decoder"
2082 theora_decoder_select="vp3_decoder"
2083 thp_decoder_select="mjpeg_decoder"
2084 tiff_decoder_suggest="zlib"
2085 tiff_encoder_suggest="zlib"
2086 truehd_decoder_select="mlp_decoder"
2087 truemotion2_decoder_select="bswapdsp"
2088 truespeech_decoder_select="bswapdsp"
2089 tscc_decoder_deps="zlib"
2090 txd_decoder_select="texturedsp"
2091 twinvq_decoder_select="mdct lsp sinewin"
2092 utvideo_decoder_select="bswapdsp"
2093 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2094 vble_decoder_select="huffyuvdsp"
2095 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2096 vc1image_decoder_select="vc1_decoder"
2097 vorbis_decoder_select="mdct"
2098 vorbis_encoder_select="mdct"
2099 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2100 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2101 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2102 vp6a_decoder_select="vp6_decoder"
2103 vp6f_decoder_select="vp6_decoder"
2104 vp7_decoder_select="h264pred videodsp vp8dsp"
2105 vp8_decoder_select="h264pred videodsp vp8dsp"
2106 vp9_decoder_select="videodsp"
2107 webp_decoder_select="vp8_decoder"
2108 wmapro_decoder_select="mdct sinewin wma_freqs"
2109 wmav1_decoder_select="mdct sinewin wma_freqs"
2110 wmav1_encoder_select="mdct sinewin wma_freqs"
2111 wmav2_decoder_select="mdct sinewin wma_freqs"
2112 wmav2_encoder_select="mdct sinewin wma_freqs"
2113 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2114 wmv1_decoder_select="h263_decoder"
2115 wmv1_encoder_select="h263_encoder"
2116 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2117 wmv2_encoder_select="h263_encoder wmv2dsp"
2118 wmv3_decoder_select="vc1_decoder"
2119 wmv3image_decoder_select="wmv3_decoder"
2120 zerocodec_decoder_deps="zlib"
2121 zlib_decoder_deps="zlib"
2122 zlib_encoder_deps="zlib"
2123 zmbv_decoder_deps="zlib"
2124 zmbv_encoder_deps="zlib"
2125
2126 # hardware accelerators
2127 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2128 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2129 vaapi_deps="va_va_h"
2130 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2131 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2132 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2133
2134 h263_vaapi_hwaccel_deps="vaapi"
2135 h263_vaapi_hwaccel_select="h263_decoder"
2136 h264_d3d11va_hwaccel_deps="d3d11va"
2137 h264_d3d11va_hwaccel_select="h264_decoder"
2138 h264_dxva2_hwaccel_deps="dxva2"
2139 h264_dxva2_hwaccel_select="h264_decoder"
2140 h264_mmal_decoder_deps="mmal"
2141 h264_mmal_hwaccel_deps="mmal"
2142 h264_mmal_decoder_select="h264_decoder"
2143 h264_mmal_encoder_deps="mmal"
2144 h264_qsv_hwaccel_deps="libmfx"
2145 h264_vaapi_hwaccel_deps="vaapi"
2146 h264_vaapi_hwaccel_select="h264_decoder"
2147 h264_vda_hwaccel_deps="vda"
2148 h264_vda_hwaccel_select="h264_decoder"
2149 h264_vda_old_hwaccel_deps="vda"
2150 h264_vda_old_hwaccel_select="h264_decoder"
2151 h264_vdpau_hwaccel_deps="vdpau"
2152 h264_vdpau_hwaccel_select="h264_decoder"
2153 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2154 hevc_d3d11va_hwaccel_select="hevc_decoder"
2155 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2156 hevc_dxva2_hwaccel_select="hevc_decoder"
2157 hevc_qsv_hwaccel_deps="libmfx"
2158 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2159 hevc_vdpau_hwaccep_select="hevc_decoder"
2160 mpeg1_vdpau_hwaccel_deps="vdpau"
2161 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2162 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2163 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2164 mpeg2_dxva2_hwaccel_deps="dxva2"
2165 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2166 mpeg2_qsv_hwaccel_deps="libmfx"
2167 mpeg2_vaapi_hwaccel_deps="vaapi"
2168 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2169 mpeg2_vdpau_hwaccel_deps="vdpau"
2170 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2171 mpeg4_vaapi_hwaccel_deps="vaapi"
2172 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2173 mpeg4_vdpau_hwaccel_deps="vdpau"
2174 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2175 vc1_d3d11va_hwaccel_deps="d3d11va"
2176 vc1_d3d11va_hwaccel_select="vc1_decoder"
2177 vc1_dxva2_hwaccel_deps="dxva2"
2178 vc1_dxva2_hwaccel_select="vc1_decoder"
2179 vc1_vaapi_hwaccel_deps="vaapi"
2180 vc1_vaapi_hwaccel_select="vc1_decoder"
2181 vc1_vdpau_hwaccel_deps="vdpau"
2182 vc1_vdpau_hwaccel_select="vc1_decoder"
2183 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2184 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2185 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2186 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2187
2188 # parsers
2189 h264_parser_select="h264_decoder"
2190 hevc_parser_select="golomb"
2191 mpegvideo_parser_select="mpegvideo"
2192 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2193 vc1_parser_select="mpegvideo startcode vc1_decoder"
2194
2195 # bitstream_filters
2196 mjpeg2jpeg_bsf_select="jpegtables"
2197
2198 # external libraries
2199 libdcadec_decoder_deps="libdcadec"
2200 libfaac_encoder_deps="libfaac"
2201 libfaac_encoder_select="audio_frame_queue"
2202 libfdk_aac_decoder_deps="libfdk_aac"
2203 libfdk_aac_encoder_deps="libfdk_aac"
2204 libfdk_aac_encoder_select="audio_frame_queue"
2205 libgsm_decoder_deps="libgsm"
2206 libgsm_encoder_deps="libgsm"
2207 libgsm_ms_decoder_deps="libgsm"
2208 libgsm_ms_encoder_deps="libgsm"
2209 libilbc_decoder_deps="libilbc"
2210 libilbc_encoder_deps="libilbc"
2211 libkvazaar_encoder_deps="libkvazaar"
2212 libmp3lame_encoder_deps="libmp3lame"
2213 libmp3lame_encoder_select="audio_frame_queue"
2214 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2215 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2216 libopencore_amrnb_encoder_select="audio_frame_queue"
2217 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2218 libopenh264_encoder_deps="libopenh264"
2219 libopenjpeg_decoder_deps="libopenjpeg"
2220 libopenjpeg_encoder_deps="libopenjpeg"
2221 libopus_decoder_deps="libopus"
2222 libopus_encoder_deps="libopus"
2223 libopus_encoder_select="audio_frame_queue"
2224 libschroedinger_decoder_deps="libschroedinger"
2225 libschroedinger_encoder_deps="libschroedinger"
2226 libspeex_decoder_deps="libspeex"
2227 libspeex_encoder_deps="libspeex"
2228 libspeex_encoder_select="audio_frame_queue"
2229 libtheora_encoder_deps="libtheora"
2230 libtwolame_encoder_deps="libtwolame"
2231 libvo_aacenc_encoder_deps="libvo_aacenc"
2232 libvo_aacenc_encoder_select="audio_frame_queue"
2233 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2234 libvorbis_encoder_deps="libvorbis"
2235 libvorbis_encoder_select="audio_frame_queue"
2236 libvpx_vp8_decoder_deps="libvpx"
2237 libvpx_vp8_encoder_deps="libvpx"
2238 libvpx_vp9_decoder_deps="libvpx"
2239 libvpx_vp9_encoder_deps="libvpx"
2240 libwavpack_encoder_deps="libwavpack"
2241 libwebp_encoder_deps="libwebp"
2242 libx262_encoder_deps="libx262"
2243 libx264_encoder_deps="libx264"
2244 libx265_encoder_deps="libx265"
2245 libxavs_encoder_deps="libxavs"
2246 libxvid_encoder_deps="libxvid"
2247
2248 # demuxers / muxers
2249 ac3_demuxer_select="ac3_parser"
2250 asf_demuxer_select="riffdec"
2251 asf_muxer_select="riffenc"
2252 asf_stream_muxer_select="asf_muxer"
2253 avi_demuxer_select="iso_media riffdec"
2254 avi_muxer_select="riffenc"
2255 avisynth_demuxer_deps="avisynth"
2256 avisynth_demuxer_select="riffdec"
2257 caf_demuxer_select="iso_media riffdec"
2258 dash_muxer_select="mp4_muxer"
2259 dirac_demuxer_select="dirac_parser"
2260 dv_demuxer_select="dvprofile"
2261 dv_muxer_select="dvprofile"
2262 dxa_demuxer_select="riffdec"
2263 eac3_demuxer_select="ac3_parser"
2264 f4v_muxer_select="mov_muxer"
2265 flac_demuxer_select="flac_parser"
2266 hds_muxer_select="flv_muxer"
2267 hls_muxer_select="mpegts_muxer"
2268 ipod_muxer_select="mov_muxer"
2269 ismv_muxer_select="mov_muxer"
2270 matroska_audio_muxer_select="matroska_muxer"
2271 matroska_demuxer_select="iso_media riffdec"
2272 matroska_demuxer_suggest="bzlib lzo zlib"
2273 matroska_muxer_select="iso_media riffenc"
2274 mmf_muxer_select="riffenc"
2275 mov_demuxer_select="iso_media riffdec"
2276 mov_demuxer_suggest="zlib"
2277 mov_muxer_select="iso_media riffenc rtpenc_chain"
2278 mp3_demuxer_select="mpegaudio_parser"
2279 mp4_muxer_select="mov_muxer"
2280 mpegts_demuxer_select="iso_media"
2281 mpegts_muxer_select="adts_muxer latm_muxer"
2282 mpegtsraw_demuxer_select="mpegts_demuxer"
2283 mxf_d10_muxer_select="mxf_muxer"
2284 nut_muxer_select="riffenc"
2285 nuv_demuxer_select="riffdec"
2286 oga_muxer_select="ogg_muxer"
2287 ogg_demuxer_select="dirac_parse"
2288 opus_muxer_select="ogg_muxer"
2289 psp_muxer_select="mov_muxer"
2290 rtp_demuxer_select="sdp_demuxer"
2291 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2292 rtsp_demuxer_select="http_protocol rtpdec"
2293 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2294 sap_demuxer_select="sdp_demuxer"
2295 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2296 sdp_demuxer_select="rtpdec"
2297 smoothstreaming_muxer_select="ismv_muxer"
2298 spdif_muxer_select="aac_parser"
2299 spx_muxer_select="ogg_muxer"
2300 swf_demuxer_suggest="zlib"
2301 tak_demuxer_select="tak_parser"
2302 tg2_muxer_select="mov_muxer"
2303 tgp_muxer_select="mov_muxer"
2304 w64_demuxer_select="wav_demuxer"
2305 wav_demuxer_select="riffdec"
2306 wav_muxer_select="riffenc"
2307 webm_muxer_select="iso_media riffenc"
2308 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2309 wtv_demuxer_select="mpegts_demuxer riffdec"
2310 xmv_demuxer_select="riffdec"
2311 xwma_demuxer_select="riffdec"
2312
2313 # indevs / outdevs
2314 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2315 alsa_outdev_deps="alsa_asoundlib_h"
2316 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2317 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2318 dv1394_indev_deps="dv1394"
2319 dv1394_indev_select="dv_demuxer"
2320 fbdev_indev_deps="linux_fb_h"
2321 jack_indev_deps="jack_jack_h pthreads"
2322 libcdio_indev_deps="libcdio"
2323 libdc1394_indev_deps="libdc1394"
2324 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2325 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2326 pulse_indev_deps="libpulse"
2327 sndio_indev_deps="sndio_h"
2328 sndio_outdev_deps="sndio_h"
2329 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2330 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2331 vfwcap_indev_extralibs="-lavicap32"
2332 x11grab_indev_deps="x11grab"
2333 x11grab_xcb_indev_deps="libxcb"
2334
2335 # protocols
2336 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2337 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2338 ffrtmpcrypt_protocol_select="tcp_protocol"
2339 ffrtmphttp_protocol_deps="!librtmp_protocol"
2340 ffrtmphttp_protocol_select="http_protocol"
2341 gopher_protocol_select="network"
2342 http_protocol_select="tcp_protocol"
2343 httpproxy_protocol_select="tcp_protocol"
2344 https_protocol_select="tls_protocol"
2345 icecast_protocol_select="http_protocol"
2346 librtmp_protocol_deps="librtmp"
2347 librtmpe_protocol_deps="librtmp"
2348 librtmps_protocol_deps="librtmp"
2349 librtmpt_protocol_deps="librtmp"
2350 librtmpte_protocol_deps="librtmp"
2351 mmsh_protocol_select="http_protocol"
2352 mmst_protocol_select="network"
2353 rtmp_protocol_deps="!librtmp_protocol"
2354 rtmp_protocol_select="tcp_protocol"
2355 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2356 rtmps_protocol_deps="!librtmp_protocol"
2357 rtmps_protocol_select="tls_protocol"
2358 rtmpt_protocol_select="ffrtmphttp_protocol"
2359 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2360 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2361 rtp_protocol_select="udp_protocol"
2362 sctp_protocol_deps="struct_sctp_event_subscribe"
2363 sctp_protocol_select="network"
2364 srtp_protocol_select="rtp_protocol"
2365 tcp_protocol_select="network"
2366 tls_gnutls_protocol_deps="gnutls"
2367 tls_gnutls_protocol_select="tcp_protocol"
2368 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2369 tls_openssl_protocol_select="tcp_protocol"
2370 tls_protocol_select_any="tls_gnutls_protocol tls_openssl_protocol"
2371 udp_protocol_select="network"
2372 unix_protocol_deps="sys_un_h"
2373 unix_protocol_select="network"
2374
2375 # filters
2376 blackframe_filter_deps="gpl"
2377 boxblur_filter_deps="gpl"
2378 bs2b_filter_deps="libbs2b"
2379 cropdetect_filter_deps="gpl"
2380 delogo_filter_deps="gpl"
2381 drawtext_filter_deps="libfreetype"
2382 frei0r_filter_deps="frei0r dlopen"
2383 frei0r_filter_extralibs='$ldl'
2384 frei0r_src_filter_deps="frei0r dlopen"
2385 frei0r_src_filter_extralibs='$ldl'
2386 hqdn3d_filter_deps="gpl"
2387 hwupload_cuda_filter_deps="cuda"
2388 interlace_filter_deps="gpl"
2389 ocv_filter_deps="libopencv"
2390 resample_filter_deps="avresample"
2391 scale_filter_deps="swscale"
2392
2393 # examples
2394 avcodec_example_deps="avcodec avutil"
2395 filter_audio_example_deps="avfilter avutil"
2396 metadata_example_deps="avformat avutil"
2397 output_example_deps="avcodec avformat avutil swscale"
2398 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2399 transcode_aac_example_deps="avcodec avformat avresample"
2400
2401 # libraries, in linking order
2402 avcodec_deps="avutil"
2403 avdevice_deps="avformat avcodec avutil"
2404 avfilter_deps="avutil"
2405 avformat_deps="avcodec avutil"
2406 avresample_deps="avutil"
2407 swscale_deps="avutil"
2408
2409 # programs
2410 avconv_deps="avcodec avfilter avformat avresample swscale"
2411 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2412 fps_filter null_filter resample_filter scale_filter
2413 setpts_filter trim_filter"
2414 avplay_deps="avcodec avfilter avformat avresample sdl"
2415 avplay_libs='$sdl_libs'
2416 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2417 avprobe_deps="avcodec avformat"
2418
2419 # documentation
2420 pod2man_deps="doc"
2421 texi2html_deps="doc"
2422
2423 # default parameters
2424
2425 logfile="config.log"
2426
2427 # installation paths
2428 prefix_default="/usr/local"
2429 bindir_default='${prefix}/bin'
2430 datadir_default='${prefix}/share/avconv'
2431 docdir_default='${prefix}/share/doc/libav'
2432 incdir_default='${prefix}/include'
2433 libdir_default='${prefix}/lib'
2434 mandir_default='${prefix}/share/man'
2435 shlibdir_default="$libdir_default"
2436
2437 # toolchain
2438 ar_default="ar"
2439 cc_default="gcc"
2440 host_cc_default="gcc"
2441 cp_f="cp -f"
2442 ln_s="ln -s -f"
2443 nm_default="nm -g"
2444 objformat="elf"
2445 pkg_config_default=pkg-config
2446 ranlib="ranlib"
2447 strip="strip"
2448 yasmexe="yasm"
2449
2450 # machine
2451 arch_default=$(uname -m)
2452 cpu="generic"
2453 intrinsics="none"
2454
2455 # OS
2456 target_os_default=$(tolower $(uname -s))
2457 host_os=$target_os_default
2458
2459 # configurable options
2460 enable asm
2461 enable debug
2462 enable doc
2463 enable faan faandct faanidct
2464 enable optimizations
2465 enable safe_bitstream_reader
2466 enable static
2467 enable swscale_alpha
2468 enable valgrind_backtrace
2469
2470 # By default, enable only those hwaccels that have no external dependencies.
2471 enable d3d11va dxva2 vda vdpau
2472
2473 # build settings
2474 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2475 LIBPREF="lib"
2476 LIBSUF=".a"
2477 FULLNAME='$(NAME)$(BUILDSUF)'
2478 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2479 SLIBPREF="lib"
2480 SLIBSUF=".so"
2481 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2482 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2483 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2484 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2485 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2486 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2487
2488 asflags_filter=echo
2489 cflags_filter=echo
2490 ldflags_filter=echo
2491
2492 AS_C='-c'
2493 AS_O='-o $@'
2494 CC_C='-c'
2495 CC_E='-E -o $@'
2496 CC_O='-o $@'
2497 OBJCC_C='-c'
2498 OBJCC_E='-E -o $@'
2499 OBJCC_O='-o $@'
2500 LD_O='-o $@'
2501 LD_LIB='-l%'
2502 LD_PATH='-L'
2503 HOSTCC_C='-c'
2504 HOSTCC_E='-E -o $@'
2505 HOSTCC_O='-o $@'
2506 HOSTLD_O='-o $@'
2507
2508 host_libs='-lm'
2509 host_cflags_filter=echo
2510 host_ldflags_filter=echo
2511
2512 target_path='$(CURDIR)'
2513
2514 # since the object filename is not given with the -MM flag, the compiler
2515 # is only able to print the basename, and we must add the path ourselves
2516 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2517 DEPFLAGS='-MM'
2518
2519 # find source path
2520 if test -f configure; then
2521 source_path=.
2522 else
2523 source_path=$(cd $(dirname "$0"); pwd)
2524 echo "$source_path" | grep -q '[[:blank:]]' &&
2525 die "Out of tree builds are impossible with whitespace in source path."
2526 test -e "$source_path/config.h" &&
2527 die "Out of tree builds are impossible with config.h in source dir."
2528 fi
2529
2530 for v in "$@"; do
2531 r=${v#*=}
2532 l=${v%"$r"}
2533 r=$(sh_quote "$r")
2534 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2535 done
2536
2537 find_things(){
2538 thing=$1
2539 pattern=$2
2540 file=$source_path/$3
2541 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2542 }
2543
2544 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2545 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2546 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2547 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2548 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2549 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2550 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2551 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2552 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2553 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2554 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2555
2556 ALL_COMPONENTS="
2557 $BSF_LIST
2558 $DECODER_LIST
2559 $DEMUXER_LIST
2560 $ENCODER_LIST
2561 $FILTER_LIST
2562 $HWACCEL_LIST
2563 $INDEV_LIST
2564 $MUXER_LIST
2565 $OUTDEV_LIST
2566 $PARSER_LIST
2567 $PROTOCOL_LIST
2568 "
2569
2570 enable $ARCH_EXT_LIST
2571
2572 die_unknown(){
2573 echo "Unknown option \"$1\"."
2574 echo "See $0 --help for available options."
2575 exit 1
2576 }
2577
2578 print_3_columns() {
2579 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2580 }
2581
2582 show_list() {
2583 suffix=_$1
2584 shift
2585 echo $* | sed s/$suffix//g | print_3_columns
2586 exit 0
2587 }
2588
2589 rand_list(){
2590 IFS=', '
2591 set -- $*
2592 unset IFS
2593 for thing; do
2594 comp=${thing%:*}
2595 prob=${thing#$comp}
2596 prob=${prob#:}
2597 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2598 echo "prob ${prob:-0.5}"
2599 printf '%s\n' $comp
2600 done
2601 }
2602
2603 do_random(){
2604 action=$1
2605 shift
2606 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2607 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2608 }
2609
2610 for opt do
2611 optval="${opt#*=}"
2612 case "$opt" in
2613 --extra-ldflags=*)
2614 add_ldflags $optval
2615 ;;
2616 --extra-ldexeflags=*)
2617 add_ldexeflags $optval
2618 ;;
2619 --extra-libs=*)
2620 add_extralibs $optval
2621 ;;
2622 --disable-devices)
2623 disable $INDEV_LIST $OUTDEV_LIST
2624 ;;
2625 --enable-debug=*)
2626 debuglevel="$optval"
2627 ;;
2628 --disable-programs)
2629 disable $PROGRAM_LIST
2630 ;;
2631 --disable-everything)
2632 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2633 enable_deep_force $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2634 ;;
2635 --disable-all)
2636 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2637 disable $LIBRARY_LIST $PROGRAM_LIST doc
2638 ;;
2639 --enable-random|--disable-random)
2640 action=${opt%%-random}
2641 do_random ${action#--} $COMPONENT_LIST
2642 ;;
2643 --enable-random=*|--disable-random=*)
2644 action=${opt%%-random=*}
2645 do_random ${action#--} $optval
2646 ;;
2647 --enable-*=*|--disable-*=*)
2648 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2649 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2650 eval list=\$$(toupper $thing)_LIST
2651 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2652 test $action = enable && action="request"
2653 $action $(filter "$name" $list)
2654 ;;
2655 --enable-avserver|--disable-avserver*)
2656 warn "avserver has been removed, the ${opt} option is only"\
2657 "provided for compatibility and will be removed in the future"
2658 ;;
2659 --enable-?*|--disable-?*)
2660 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2661 if is_in $option $COMPONENT_LIST; then
2662 test $action = enable && action="enable_deep_force"
2663 eval $action \$$(toupper ${option%s})_LIST
2664 elif is_in $option $CMDLINE_SELECT; then
2665 test $action = enable && action="request"
2666 $action $option
2667 else
2668 die_unknown $opt
2669 fi
2670 ;;
2671 --list-*)
2672 NAME="${opt#--list-}"
2673 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2674 NAME=${NAME%s}
2675 eval show_list $NAME \$$(toupper $NAME)_LIST
2676 ;;
2677 --help|-h) show_help
2678 ;;
2679 *)
2680 optname="${opt%%=*}"
2681 optname="${optname#--}"
2682 optname=$(echo "$optname" | sed 's/-/_/g')
2683 if is_in $optname $CMDLINE_SET; then
2684 eval $optname='$optval'
2685 elif is_in $optname $CMDLINE_APPEND; then
2686 append $optname "$optval"
2687 else
2688 die_unknown $opt
2689 fi
2690 ;;
2691 esac
2692 done
2693
2694 for e in $env; do
2695 eval "export $e"
2696 done
2697
2698 disabled logging && logfile=/dev/null
2699
2700 # Enable the default components if not disabled explicitly
2701
2702 enable_weak $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2703
2704 # Disable all the library-specific components if the library itself
2705 # is disabled, see AVCODEC_LIST and following _LIST variables.
2706
2707 disable_components(){
2708 disabled ${1} && disable_weak $(
2709 eval components="\$$(toupper ${1})_COMPONENTS"
2710 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2711 )
2712 }
2713
2714 map 'disable_components $v' $LIBRARY_LIST
2715
2716 # Mark components that had not been enabled/disabled explicitly
2717 # as enabled
2718
2719 for n in $COMPONENT_LIST; do
2720 v=$(toupper ${n%s})_LIST
2721 eval enable_weak \$$v
2722 eval ${n}_if_any="\$$v"
2723 done
2724
2725 # Make so that disabled libraries are enabled if a component
2726 # of them is requested
2727
2728 for n in $LIBRARY_LIST; do
2729 v=$(toupper ${n})_COMPONENTS
2730 eval ${n}_if_any="\$$v"
2731 done
2732
2733 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2734 set >> $logfile
2735
2736 case "$toolchain" in
2737 *-asan)
2738 cc_default="${toolchain%-asan}"
2739 add_cflags -fsanitize=address
2740 add_ldflags -fsanitize=address
2741 ;;
2742 *-tsan)
2743 cc_default="${toolchain%-tsan}"
2744 add_cflags -fsanitize=thread -pie
2745 add_ldflags -fsanitize=thread -pie
2746 case "$toolchain" in
2747 gcc-tsan)
2748 add_cflags -fPIC
2749 add_ldflags -fPIC
2750 ;;
2751 esac
2752 ;;
2753 *-usan)
2754 cc_default="${toolchain%-usan}"
2755 add_cflags -fsanitize=undefined
2756 add_ldflags -fsanitize=undefined
2757 case "$toolchain" in
2758 clang-usan)
2759 add_cflags -O1
2760 ;;
2761 esac
2762 ;;
2763 valgrind-*)
2764 target_exec_default="valgrind"
2765 case "$toolchain" in
2766 valgrind-massif)
2767 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2768 ;;
2769 valgrind-memcheck)
2770 target_exec_args="--track-origins=yes --leak-check=full"
2771 ;;
2772 esac
2773 ;;
2774 msvc)
2775 # Check whether the current MSVC version needs the C99 converter.
2776 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2777 # support enough of C99 to build libav. Default to the new
2778 # behaviour if the regexp was unable to match anything, since this
2779 # successfully parses the version number of existing supported
2780 # versions that require the converter (MSVC 2010 and 2012).
2781 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2782 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2783 cc_default="cl"
2784 else
2785 cc_default="c99wrap cl"
2786 fi
2787 ld_default="$source_path/compat/windows/mslink"
2788 nm_default="dumpbin -symbols"
2789 ar_default="lib"
2790 case "$arch" in
2791 arm*)
2792 as_default="armasm"
2793 ;;
2794 esac
2795 target_os_default="win32"
2796 # Use a relative path for TMPDIR. This makes sure all the
2797 # ffconf temp files are written with a relative path, avoiding
2798 # issues with msys/win32 path conversion for MSVC parameters
2799 # such as -Fo<file> or -out:<file>.
2800 TMPDIR=.
2801 ;;
2802 icl)
2803 cc_default="icl"
2804 ld_default="xilink"
2805 nm_default="dumpbin -symbols"
2806 ar_default="xilib"
2807 target_os_default="win32"
2808 TMPDIR=.
2809 ;;
2810 gcov)
2811 add_cflags -fprofile-arcs -ftest-coverage
2812 add_ldflags -fprofile-arcs -ftest-coverage
2813 ;;
2814 hardened)
2815 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2816 add_cflags -fno-strict-overflow -fstack-protector-all
2817 add_ldflags -Wl,-z,relro -Wl,-z,now
2818 ;;
2819 ?*)
2820 die "Unknown toolchain $toolchain"
2821 ;;
2822 esac
2823
2824 test -n "$cross_prefix" && enable cross_compile
2825
2826 if enabled cross_compile; then
2827 test -n "$arch" && test -n "$target_os" ||
2828 die "Must specify target arch and OS when cross-compiling"
2829 fi
2830
2831 ar_default="${cross_prefix}${ar_default}"
2832 cc_default="${cross_prefix}${cc_default}"
2833 occ_default="${cross_prefix}${occ_default}"
2834 nm_default="${cross_prefix}${nm_default}"
2835 pkg_config_default="${cross_prefix}${pkg_config_default}"
2836 ranlib="${cross_prefix}${ranlib}"
2837 strip="${cross_prefix}${strip}"
2838
2839 sysinclude_default="${sysroot}/usr/include"
2840
2841 set_default arch cc pkg_config sysinclude target_exec target_os
2842 enabled cross_compile || host_cc_default=$cc
2843 set_default host_cc
2844
2845 if ! $pkg_config --version >/dev/null 2>&1; then
2846 warn "$pkg_config not found, library detection may fail."
2847 pkg_config=false
2848 fi
2849
2850 exesuf() {
2851 case $1 in
2852 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2853 esac
2854 }
2855
2856 EXESUF=$(exesuf $target_os)
2857 HOSTEXESUF=$(exesuf $host_os)
2858
2859 # set temporary file name
2860 : ${TMPDIR:=$TEMPDIR}
2861 : ${TMPDIR:=$TMP}
2862 : ${TMPDIR:=/tmp}
2863
2864 if ! check_cmd mktemp -u XXXXXX; then
2865 # simple replacement for missing mktemp
2866 # NOT SAFE FOR GENERAL USE
2867 mktemp(){
2868 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2869 }
2870 fi
2871
2872 tmpfile(){
2873 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2874 (set -C; exec > $tmp) 2>/dev/null ||
2875 die "Unable to create temporary file in $TMPDIR."
2876 append TMPFILES $tmp
2877 eval $1=$tmp
2878 }
2879
2880 trap 'rm -f -- $TMPFILES' EXIT
2881
2882 tmpfile TMPASM .asm
2883 tmpfile TMPC .c
2884 tmpfile TMPE $EXESUF
2885 tmpfile TMPH .h
2886 tmpfile TMPO .o
2887 tmpfile TMPS .S
2888 tmpfile TMPSH .sh
2889 tmpfile TMPV .ver
2890
2891 unset -f mktemp
2892
2893 chmod +x $TMPE
2894
2895 # make sure we can execute files in $TMPDIR
2896 cat > $TMPSH 2>> $logfile <<EOF
2897 #! /bin/sh
2898 EOF
2899 chmod +x $TMPSH >> $logfile 2>&1
2900 if ! $TMPSH >> $logfile 2>&1; then
2901 cat <<EOF
2902 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2903 variable to another directory and make sure that it is not mounted noexec.
2904 EOF
2905 die "Sanity test failed."
2906 fi
2907
2908 armasm_flags(){
2909 for flag; do
2910 case $flag in
2911 # Filter out MSVC cl.exe options from cflags that shouldn't
2912 # be passed to gas-preprocessor
2913 -M[TD]*) ;;
2914 *) echo $flag ;;
2915 esac
2916 done
2917 }
2918
2919 ccc_flags(){
2920 for flag; do
2921 case $flag in
2922 -std=c99) echo -c99 ;;
2923 -mcpu=*) echo -arch ${flag#*=} ;;
2924 -mieee) echo -ieee ;;
2925 -O*|-fast) echo $flag ;;
2926 -fno-math-errno) echo -assume nomath_errno ;;
2927 -g) echo -g3 ;;
2928 -Wall) echo -msg_enable level2 ;;
2929 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2930 -Wl,*) echo $flag ;;
2931 -f*|-W*) ;;
2932 *) echo $flag ;;
2933 esac
2934 done
2935 }
2936
2937 cparser_flags(){
2938 for flag; do
2939 case $flag in
2940 -Wno-switch) echo -Wno-switch-enum ;;
2941 -Wno-format-zero-length) ;;
2942 -Wdisabled-optimization) ;;
2943 -Wno-pointer-sign) echo -Wno-other ;;
2944 *) echo $flag ;;
2945 esac
2946 done
2947 }
2948
2949 msvc_common_flags(){
2950 for flag; do
2951 case $flag in
2952 # In addition to specifying certain flags under the compiler
2953 # specific filters, they must be specified here as well or else the
2954 # generic catch all at the bottom will print the original flag.
2955 -Wall) ;;
2956 -std=c99) ;;
2957 # Common flags
2958 -fomit-frame-pointer) ;;
2959 -g) echo -Z7 ;;
2960 -fno-math-errno) ;;
2961 -fno-common) ;;
2962 -fno-signed-zeros) ;;
2963 -fPIC) ;;
2964 -mthumb) ;;
2965 -march=*) ;;
2966 -lz) echo zlib.lib ;;
2967 -lavifil32) echo vfw32.lib ;;
2968 -lavicap32) echo vfw32.lib user32.lib ;;
2969 -lx264) echo libx264.lib ;;
2970 -l*) echo ${flag#-l}.lib ;;
2971 -L*) echo -libpath:${flag#-L} ;;
2972 *) echo $flag ;;
2973 esac
2974 done
2975 }
2976
2977 msvc_flags(){
2978 msvc_common_flags "$@"
2979 for flag; do
2980 case $flag in
2981 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2982 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2983 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2984 -wd4273 -wd4554 -wd4701 ;;
2985 esac
2986 done
2987 }
2988
2989 icl_flags(){
2990 msvc_common_flags "$@"
2991 for flag; do
2992 case $flag in
2993 # Despite what Intel's documentation says -Wall, which is supported
2994 # on Windows, does enable remarks so disable them here.
2995 -Wall) echo $flag -Qdiag-disable:remark ;;
2996 -std=c99) echo -Qstd=c99 ;;
2997 esac
2998 done
2999 }
3000
3001 pgi_flags(){
3002 for flag; do
3003 case $flag in
3004 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3005 -fomit-frame-pointer) echo -Mnoframe ;;
3006 -g) echo -gopt ;;
3007 *) echo $flag ;;
3008 esac
3009 done
3010 }
3011
3012 suncc_flags(){
3013 for flag; do
3014 case $flag in
3015 -march=*|-mcpu=*)
3016 case "${flag#*=}" in
3017 native) echo -xtarget=native ;;
3018 v9|niagara) echo -xarch=sparc ;;
3019 ultrasparc) echo -xarch=sparcvis ;;
3020 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3021 i586|pentium) echo -xchip=pentium ;;
3022 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3023 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3024 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3025 pentium4*) echo -xtarget=pentium4 ;;
3026 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3027 *-sse3) echo -xarch=sse3 ;;
3028 core2) echo -xarch=ssse3 -xchip=core2 ;;
3029 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3030 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3031 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3032 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3033 k8|opteron|athlon64|athlon-fx)
3034 echo -xarch=sse2a ;;
3035 athlon*) echo -xarch=pentium_proa ;;
3036 esac
3037 ;;
3038 -std=c99) echo -xc99 ;;
3039 -fomit-frame-pointer) echo -xregs=frameptr ;;
3040 -fPIC) echo -KPIC -xcode=pic32 ;;
3041 -W*,*) echo $flag ;;
3042 -f*-*|-W*|-mimpure-text) ;;
3043 -shared) echo -G ;;
3044 *) echo $flag ;;
3045 esac
3046 done
3047 }
3048
3049 tms470_flags(){
3050 for flag; do
3051 case $flag in
3052 -march=*|-mcpu=*)
3053 case "${flag#*=}" in
3054 armv7-a|cortex-a*) echo -mv=7a8 ;;
3055 armv7-r|cortex-r*) echo -mv=7r4 ;;
3056 armv7-m|cortex-m*) echo -mv=7m3 ;;
3057 armv6*|arm11*) echo -mv=6 ;;
3058 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3059 echo -mv=5e ;;
3060 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3061 esac
3062 ;;
3063 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3064 -mfpu=vfp) echo --float_support=vfpv2 ;;
3065 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3066 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3067 -msoft-float) echo --float_support=vfplib ;;
3068 -O[0-3]|-mf=*) echo $flag ;;
3069 -g) echo -g -mn ;;
3070 -pds=*) echo $flag ;;
3071 -D*|-I*) echo $flag ;;
3072 --gcc|--abi=*) echo $flag ;;
3073 -me) echo $flag ;;
3074 esac
3075 done
3076 }
3077
3078 probe_cc(){
3079 pfx=$1
3080 _cc=$2
3081
3082 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3083 unset _ld_o _ldflags _ld_lib _ld_path
3084 unset _depflags _DEPCMD _DEPFLAGS
3085 _flags_filter=echo
3086
3087 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3088 _type=llvm_gcc
3089 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3090 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3091 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3092 _cflags_speed='-O3'
3093 _cflags_size='-Os'
3094 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3095 _type=gcc
3096 gcc_version=$($_cc --version | head -n1)
3097 gcc_basever=$($_cc -dumpversion)
3098 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3099 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3100 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3101 if ! $_cc -dumpversion | grep -q '^2\.'; then
3102 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3103 fi
3104 _cflags_speed='-O3'
3105 _cflags_size='-Os'
3106 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3107 _type=icc
3108 _ident=$($_cc --version | head -n1)
3109 _depflags='-MMD'
3110 _cflags_speed='-O3'
3111 _cflags_size='-Os'
3112 _cflags_noopt='-O1'
3113 elif $_cc -v 2>&1 | grep -q xlc; then
3114 _type=xlc
3115 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3116 _cflags_speed='-O5'
3117 _cflags_size='-O5 -qcompact'
3118 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3119 _type=ccc
3120 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3121 _DEPFLAGS='-M'
3122 _cflags_speed='-fast'
3123 _cflags_size='-O1'
3124 _flags_filter=ccc_flags
3125 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3126 test -d "$sysroot" || die "No valid sysroot specified."
3127 _type=armcc
3128 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3129 armcc_conf="$PWD/armcc.conf"
3130 $_cc --arm_linux_configure \
3131 --arm_linux_config_file="$armcc_conf" \
3132 --configure_sysroot="$sysroot" \
3133 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3134 die "Error creating armcc configuration file."
3135 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3136 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3137 as_default="${cross_prefix}gcc"
3138 _depflags='-MMD'
3139 _cflags_speed='-O3'
3140 _cflags_size='-Os'
3141 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3142 _type=tms470
3143 _ident=$($_cc -version | head -n1 | tr -s ' ')
3144 _flags='--gcc --abi=eabi -me'
3145 _cc_e='-ppl -fe=$@'
3146 _cc_o='-fe=$@'
3147 _depflags='-ppa -ppd=$(@:.o=.d)'
3148 _cflags_speed='-O3 -mf=5'
3149 _cflags_size='-O3 -mf=2'
3150 _flags_filter=tms470_flags
3151 elif $_cc -v 2>&1 | grep -q clang; then
3152 _type=clang
3153 _ident=$($_cc --version 2>/dev/null | head -n1)
3154 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3155 _cflags_speed='-O3'
3156 _cflags_size='-Os'
3157 elif $_cc -V 2>&1 | grep -q Sun; then
3158 _type=suncc
3159 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3160 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3161 _DEPFLAGS='-xM1 -xc99'
3162 _ldflags='-std=c99'
3163 _cflags_speed='-O5'
3164 _cflags_size='-O5 -xspace'
3165 _flags_filter=suncc_flags
3166 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3167 _type=pathscale
3168 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3169 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3170 _cflags_speed='-O2'
3171 _cflags_size='-Os'
3172 _flags_filter='filter_out -Wdisabled-optimization'
3173 elif $_cc -v 2>&1 | grep -q Open64; then
3174 _type=open64
3175 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3176 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3177 _cflags_speed='-O2'
3178 _cflags_size='-Os'
3179 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3180 elif $_cc -V 2>&1 | grep -q Portland; then
3181 _type=pgi
3182 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3183 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3184 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3185 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3186 _cflags_noopt="-O1"
3187 _flags_filter=pgi_flags
3188 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3189 _type=armasm
3190 _ident=$($_cc | head -n1)
3191 # 4509: "This form of conditional instruction is deprecated"
3192 _flags="-nologo -ignore 4509"
3193 _flags_filter=armasm_flags
3194 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3195 _type=msvc
3196 _ident=$($_cc 2>&1 | head -n1)
3197 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3198 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3199 _cflags_speed="-O2"
3200 _cflags_size="-O1"
3201 if $_cc -nologo- 2>&1 | grep -q Linker; then
3202 _ld_o='-out:$@'
3203 else
3204 _ld_o='-Fe$@'
3205 fi
3206 _cc_o='-Fo$@'
3207 _cc_e='-P -Fi$@'
3208 _flags_filter=msvc_flags
3209 _ld_lib='lib%.a'
3210 _ld_path='-libpath:'
3211 _flags='-nologo'
3212 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3213 elif $_cc 2>&1 | grep -q Intel; then
3214 _type=icl
3215 _ident=$($_cc 2>&1 | head -n1)
3216 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3217 # Not only is O3 broken on 13.x+ but it is slower on all previous
3218 # versions (tested) as well.
3219 _cflags_speed="-O2"
3220 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3221 if $_cc 2>&1 | grep -q Linker; then
3222 _ld_o='-out:$@'
3223 else
3224 _ld_o='-Fe$@'
3225 fi
3226 _cc_o='-Fo$@'
3227 _cc_e='-P'
3228 _flags_filter=icl_flags
3229 _ld_lib='lib%.a'
3230 _ld_path='-libpath:'
3231 # -Qdiag-error to make icl error when seeing certain unknown arguments
3232 _flags='-nologo -Qdiag-error:4044,10157'
3233 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3234 # with MSVC which enables it by default.
3235 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3236 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3237 _type=cparser
3238 _ident=$($_cc --version | head -n1)
3239 _depflags='-MMD'
3240 _cflags_speed='-O4'
3241 _cflags_size='-O2'
3242 _flags_filter=cparser_flags
3243 fi
3244
3245 eval ${pfx}_type=\$_type
3246 eval ${pfx}_ident=\$_ident
3247 }
3248
3249 set_ccvars(){
3250 eval ${1}_C=\${_cc_c-\${${1}_C}}
3251 eval ${1}_E=\${_cc_e-\${${1}_E}}
3252 eval ${1}_O=\${_cc_o-\${${1}_O}}
3253
3254 if [ -n "$_depflags" ]; then
3255 eval ${1}_DEPFLAGS=\$_depflags
3256 else
3257 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3258 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3259 eval DEP${1}FLAGS=\$_flags
3260 fi
3261 }
3262
3263 probe_cc cc "$cc"
3264 cflags_filter=$_flags_filter
3265 cflags_speed=$_cflags_speed
3266 cflags_size=$_cflags_size
3267 cflags_noopt=$_cflags_noopt
3268 add_cflags $_flags $_cflags
3269 cc_ldflags=$_ldflags
3270 set_ccvars CC
3271
3272 probe_cc hostcc "$host_cc"
3273 host_cflags_filter=$_flags_filter
3274 add_host_cflags $_flags $_cflags
3275 set_ccvars HOSTCC
3276
3277 test -n "$cc_type" && enable $cc_type ||
3278 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3279
3280 : ${as_default:=$cc}
3281 : ${objcc_default:=$cc}
3282 : ${dep_cc_default:=$cc}
3283 : ${ld_default:=$cc}
3284 : ${host_ld_default:=$host_cc}
3285 set_default ar as objcc dep_cc ld host_ld
3286
3287 probe_cc as "$as"
3288 asflags_filter=$_flags_filter
3289 add_asflags $_flags $_cflags
3290 set_ccvars AS
3291
3292 probe_cc objcc "$objcc"
3293 objcflags_filter=$_flags_filter
3294 add_objcflags $_flags $_cflags
3295 set_ccvars OBJC
3296
3297 probe_cc ld "$ld"
3298 ldflags_filter=$_flags_filter
3299 add_ldflags $_flags $_ldflags
3300 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3301 LD_O=${_ld_o-$LD_O}
3302 LD_LIB=${_ld_lib-$LD_LIB}
3303 LD_PATH=${_ld_path-$LD_PATH}
3304
3305 probe_cc hostld "$host_ld"
3306 host_ldflags_filter=$_flags_filter
3307 add_host_ldflags $_flags $_ldflags
3308 HOSTLD_O=${_ld_o-$HOSTLD_O}
3309
3310 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3311 probe_cc depcc "$dep_cc"
3312 CCDEP=${_DEPCMD:-$DEPCMD}
3313 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3314 DEPCCFLAGS=$_flags
3315 fi
3316
3317 if $ar 2>&1 | grep -q Microsoft; then
3318 arflags="-nologo"
3319 ar_o='-out:$@'
3320 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3321 arflags="rq"
3322 ar_o='$@'
3323 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3324 arflags='-Xany -r -c'
3325 ar_o='$@'
3326 else
3327 arflags="rc"
3328 ar_o='$@'
3329 fi
3330
3331 add_cflags $extra_cflags
3332 add_objcflags $extra_objcflags
3333 add_asflags $extra_cflags
3334
3335 if test -n "$sysroot"; then
3336 case "$cc_type" in
3337 gcc|llvm_gcc|clang)
3338 add_cppflags --sysroot="$sysroot"
3339 add_ldflags --sysroot="$sysroot"
3340 ;;
3341 tms470)
3342 add_cppflags -I"$sysinclude"
3343 add_ldflags --sysroot="$sysroot"
3344 ;;
3345 esac
3346 fi
3347
3348 if test "$cpu" = host; then
3349 enabled cross_compile &&
3350 die "--cpu=host makes no sense when cross-compiling."
3351
3352 case "$cc_type" in
3353 gcc|llvm_gcc)
3354 check_native(){
3355 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3356 sed -n "/cc1.*$1=/{
3357 s/.*$1=\\([^ ]*\\).*/\\1/
3358 p
3359 q
3360 }" $TMPE
3361 }
3362 cpu=$(check_native -march || check_native -mcpu)
3363 ;;
3364 esac
3365
3366 test "${cpu:-host}" = host &&
3367 die "--cpu=host not supported with compiler $cc"
3368 fi
3369
3370 # Deal with common $arch aliases
3371 case "$arch" in
3372 aarch64|arm64)
3373 arch="aarch64"
3374 ;;
3375 arm*)
3376 arch="arm"
3377 ;;
3378 mips*|IP*)
3379 case "$arch" in
3380 *el)
3381 add_cppflags -EL
3382 add_ldflags -EL
3383 ;;
3384 *eb)
3385 add_cppflags -EB
3386 add_ldflags -EB
3387 ;;
3388 esac
3389 arch="mips"
3390 ;;
3391 parisc*|hppa*)
3392 arch="parisc"
3393 ;;
3394 "Power Macintosh"|ppc*|powerpc*)
3395 arch="ppc"
3396 ;;
3397 s390|s390x)
3398 arch="s390"
3399 ;;
3400 sh4|sh)
3401 arch="sh4"
3402 ;;
3403 sun4u|sparc*)
3404 arch="sparc"
3405 ;;
3406 tilegx|tile-gx)
3407 arch="tilegx"
3408 ;;
3409 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3410 arch="x86"
3411 ;;
3412 esac
3413
3414 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3415 enable $arch
3416
3417 # Add processor-specific flags
3418 if enabled aarch64; then
3419
3420 case $cpu in
3421 armv*)
3422 cpuflags="-march=$cpu"
3423 ;;
3424 *)
3425 cpuflags="-mcpu=$cpu"
3426 ;;
3427 esac
3428
3429 elif enabled alpha; then
3430
3431 cpuflags="-mcpu=$cpu"
3432
3433 elif enabled arm; then
3434
3435 check_arm_arch() {
3436 check_cpp_condition stddef.h \
3437 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3438 $cpuflags
3439 }
3440
3441 probe_arm_arch() {
3442 if check_arm_arch 4; then echo armv4;
3443 elif check_arm_arch 4T; then echo armv4t;
3444 elif check_arm_arch 5; then echo armv5;
3445 elif check_arm_arch 5E; then echo armv5e;
3446 elif check_arm_arch 5T; then echo armv5t;
3447 elif check_arm_arch 5TE; then echo armv5te;
3448 elif check_arm_arch 5TEJ; then echo armv5te;
3449 elif check_arm_arch 6; then echo armv6;
3450 elif check_arm_arch 6J; then echo armv6j;
3451 elif check_arm_arch 6K; then echo armv6k;
3452 elif check_arm_arch 6Z; then echo armv6z;
3453 elif check_arm_arch 6ZK; then echo armv6zk;
3454 elif check_arm_arch 6T2; then echo armv6t2;
3455 elif check_arm_arch 7; then echo armv7;
3456 elif check_arm_arch 7A 7_A; then echo armv7-a;
3457 elif check_arm_arch 7S; then echo armv7-a;
3458 elif check_arm_arch 7R 7_R; then echo armv7-r;
3459 elif check_arm_arch 7M 7_M; then echo armv7-m;
3460 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3461 elif check_arm_arch 8A 8_A; then echo armv8-a;
3462 fi
3463 }
3464
3465 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3466
3467 case $cpu in
3468 armv*)
3469 cpuflags="-march=$cpu"
3470 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3471 ;;
3472 *)
3473 cpuflags="-mcpu=$cpu"
3474 case $cpu in
3475 cortex-a*) subarch=armv7a ;;
3476 cortex-r*) subarch=armv7r ;;
3477 cortex-m*) enable thumb; subarch=armv7m ;;
3478 arm11*) subarch=armv6 ;;
3479 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3480 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3481 *) subarch=$(probe_arm_arch) ;;
3482 esac
3483 ;;
3484 esac
3485
3486 case "$subarch" in
3487 armv5t*) enable fast_clz ;;
3488 armv[6-8]*) enable fast_clz fast_unaligned ;;
3489 esac
3490
3491 elif enabled avr32; then
3492
3493 case $cpu in
3494 ap7[02]0[0-2])
3495 subarch="avr32_ap"
3496 cpuflags="-mpart=$cpu"
3497 ;;
3498 ap)
3499 subarch="avr32_ap"
3500 cpuflags="-march=$cpu"
3501 ;;
3502 uc3[ab]*)
3503 subarch="avr32_uc"
3504 cpuflags="-mcpu=$cpu"
3505 ;;
3506 uc)
3507 subarch="avr32_uc"
3508 cpuflags="-march=$cpu"
3509 ;;
3510 esac
3511
3512 elif enabled bfin; then
3513
3514 cpuflags="-mcpu=$cpu"
3515
3516 elif enabled mips; then
3517
3518 cpuflags="-march=$cpu"
3519
3520 elif enabled ppc; then
3521
3522 disable ldbrx
3523
3524 case $(tolower $cpu) in
3525 601|ppc601|powerpc601)
3526 cpuflags="-mcpu=601"
3527 disable altivec
3528 ;;
3529 603*|ppc603*|powerpc603*)
3530 cpuflags="-mcpu=603"
3531 disable altivec
3532 ;;
3533 604*|ppc604*|powerpc604*)
3534 cpuflags="-mcpu=604"
3535 disable altivec
3536 ;;
3537 g3|75*|ppc75*|powerpc75*)
3538 cpuflags="-mcpu=750"
3539 disable altivec
3540 ;;
3541 g4|745*|ppc745*|powerpc745*)
3542 cpuflags="-mcpu=7450"
3543 disable vsx
3544 ;;
3545 74*|ppc74*|powerpc74*)
3546 cpuflags="-mcpu=7400"
3547 disable vsx
3548 ;;
3549 g5|970|ppc970|powerpc970)
3550 cpuflags="-mcpu=970"
3551 disable vsx
3552 ;;
3553 power[3-6]*)
3554 cpuflags="-mcpu=$cpu"
3555 disable vsx
3556 ;;
3557 power[7-8]*)
3558 cpuflags="-mcpu=$cpu"
3559 enable ldbrx
3560 ;;
3561 cell)
3562 cpuflags="-mcpu=cell"
3563 enable ldbrx
3564 disable vsx
3565 ;;
3566 e500mc)
3567 cpuflags="-mcpu=e500mc"
3568 disable altivec
3569 ;;
3570 e500v2)
3571 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3572 disable altivec
3573 disable dcbzl
3574 ;;
3575 e500)
3576 cpuflags="-mcpu=8540 -mhard-float"
3577 disable altivec
3578 disable dcbzl
3579 ;;
3580 esac
3581
3582 elif enabled sparc; then
3583
3584 case $cpu in
3585 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3586 cpuflags="-mcpu=$cpu"
3587 ;;
3588 ultrasparc*|niagara[234])
3589 cpuflags="-mcpu=$cpu"
3590 ;;
3591 esac
3592
3593 elif enabled x86; then
3594
3595 case $cpu in
3596 i[345]86|pentium)
3597 cpuflags="-march=$cpu"
3598 disable i686
3599 disable mmx
3600 ;;
3601 # targets that do NOT support nopl and conditional mov (cmov)
3602 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3603 cpuflags="-march=$cpu"
3604 disable i686
3605 ;;
3606 # targets that do support nopl and conditional mov (cmov)
3607 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3608 cpuflags="-march=$cpu"
3609 enable i686
3610 enable fast_cmov
3611 ;;
3612 # targets that do support conditional mov but on which it's slow
3613 pentium4|pentium4m|prescott|nocona)
3614 cpuflags="-march=$cpu"
3615 enable i686
3616 disable fast_cmov
3617 ;;
3618 esac
3619
3620 fi
3621
3622 if [ "$cpu" != generic ]; then
3623 add_cflags $cpuflags
3624 add_asflags $cpuflags
3625 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3626 fi
3627
3628 # compiler sanity check
3629 check_exec <<EOF
3630 int main(void){ return 0; }
3631 EOF
3632 if test "$?" != 0; then
3633 echo "$cc is unable to create an executable file."
3634 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3635 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3636 echo "Only do this if you know what cross compiling means."
3637 fi
3638 die "C compiler test failed."
3639 fi
3640
3641 add_cppflags -D_ISOC99_SOURCE
3642 check_cflags -std=c99
3643 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3644 #include <stdlib.h>
3645 EOF
3646 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3647 #include <stdlib.h>
3648 EOF
3649
3650 add_host_cppflags -D_ISOC99_SOURCE
3651 check_host_cflags -std=c99
3652 check_host_cflags -Wall
3653 check_host_cflags -O3
3654
3655 check_64bit(){
3656 arch32=$1
3657 arch64=$2
3658 expr=$3
3659 check_code cc "" "int test[2*($expr) - 1]" &&
3660 subarch=$arch64 || subarch=$arch32
3661 }
3662
3663 case "$arch" in
3664 aarch64|alpha|ia64)
3665 spic=$shared
3666 ;;
3667 mips)
3668 check_64bit mips mips64 '_MIPS_SIM > 1'
3669 spic=$shared
3670 ;;
3671 parisc)
3672 check_64bit parisc parisc64 'sizeof(void *) > 4'
3673 spic=$shared
3674 ;;
3675 ppc)
3676 check_64bit ppc ppc64 'sizeof(void *) > 4'
3677 spic=$shared
3678 ;;
3679 s390)
3680 check_64bit s390 s390x 'sizeof(void *) > 4'
3681 spic=$shared
3682 ;;
3683 sparc)
3684 check_64bit sparc sparc64 'sizeof(void *) > 4'
3685 spic=$shared
3686 ;;
3687 x86)
3688 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3689 if test "$subarch" = "x86_64"; then
3690 spic=$shared
3691 fi
3692 ;;
3693 esac
3694
3695 enable $subarch
3696 enabled spic && enable_weak pic
3697
3698 # OS specific
3699 case $target_os in
3700 aix)
3701 SHFLAGS=-shared
3702 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3703 enabled shared && add_ldflags -Wl,-brtl
3704 ;;
3705 android)
3706 disable symver
3707 enable section_data_rel_ro
3708 SLIB_INSTALL_NAME='$(SLIBNAME)'
3709 SLIB_INSTALL_LINKS=
3710 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3711 ;;
3712 haiku)
3713 prefix_default="/boot/common"
3714 network_extralibs="-lnetwork"
3715 host_libs=
3716 ;;
3717 sunos)
3718 SHFLAGS='-shared -Wl,-h,$$(@F)'
3719 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3720 network_extralibs="-lsocket -lnsl"
3721 # When using suncc to build, the Solaris linker will mark
3722 # an executable with each instruction set encountered by
3723 # the Solaris assembler. As our libraries contain their own
3724 # guards for processor-specific code, instead suppress
3725 # generation of the HWCAPS ELF section on Solaris x86 only.
3726 enabled_all suncc x86 &&
3727 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3728 add_ldflags -Wl,-M,mapfile
3729 nm_default='nm -P -g'
3730 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3731 ;;
3732 netbsd)
3733 disable symver
3734 oss_indev_extralibs="-lossaudio"
3735 oss_outdev_extralibs="-lossaudio"
3736 ;;
3737 openbsd|bitrig)
3738 disable symver
3739 SHFLAGS='-shared'
3740 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3741 SLIB_INSTALL_LINKS=
3742 oss_indev_extralibs="-lossaudio"
3743 oss_outdev_extralibs="-lossaudio"
3744 ;;
3745 dragonfly)
3746 disable symver
3747 ;;
3748 freebsd)
3749 ;;
3750 bsd/os)
3751 add_extralibs -lpoll -lgnugetopt
3752 ;;
3753 darwin)
3754 enabled ppc && add_asflags -force_cpusubtype_ALL
3755 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3756 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3757 add_ldflags -Wl,-dynamic,-search_paths_first
3758 SLIBSUF=".dylib"
3759 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3760 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3761 objformat="macho"
3762 enabled x86_64 && objformat="macho64"
3763 enabled_any pic shared ||
3764 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3765 ;;
3766 msys*)
3767 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3768 ;;
3769 mingw32*|mingw64*)
3770 if test $target_os = "mingw32ce"; then
3771 disable network
3772 else
3773 target_os=mingw32
3774 fi
3775 LIBTARGET=i386
3776 if enabled x86_64; then
3777 LIBTARGET="i386:x86-64"
3778 elif enabled arm; then
3779 LIBTARGET=arm-wince
3780 fi
3781 check_ldflags -Wl,--nxcompat
3782 check_ldflags -Wl,--dynamicbase
3783 shlibdir_default="$bindir_default"
3784 SLIBPREF=""
3785 SLIBSUF=".dll"
3786 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3787 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3788 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3789 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3790 SLIB_INSTALL_LINKS=
3791 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3792 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3793 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3794 objformat="win32"
3795 dlltool="${cross_prefix}dlltool"
3796 ranlib=:
3797 enable dos_paths
3798 ;;
3799 win32|win64)
3800 disable symver
3801 if enabled shared; then
3802 # Link to the import library instead of the normal static library
3803 # for shared libs.
3804 LD_LIB='%.lib'
3805 # Cannot build both shared and static libs with MSVC or icl.
3806 disable static
3807 fi
3808 shlibdir_default="$bindir_default"
3809 SLIBPREF=""
3810 SLIBSUF=".dll"
3811 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3812 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3813 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3814 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3815 SLIB_INSTALL_LINKS=
3816 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3817 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3818 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3819 objformat="win32"
3820 ranlib=:
3821 enable dos_paths
3822 ;;
3823 cygwin*)
3824 target_os=cygwin
3825 shlibdir_default="$bindir_default"
3826 SLIBPREF="cyg"
3827 SLIBSUF=".dll"
3828 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3829 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3830 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3831 SLIB_INSTALL_LINKS=
3832 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3833 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3834 objformat="win32"
3835 enable dos_paths
3836 ;;
3837 *-dos|freedos|opendos)
3838 network_extralibs="-lsocket"
3839 objformat="coff"
3840 enable dos_paths
3841 add_cppflags -U__STRICT_ANSI__
3842 ;;
3843 linux)
3844 enable dv1394
3845 enable section_data_rel_ro
3846 ;;
3847 irix*)
3848 target_os=irix
3849 ranlib="echo ignoring ranlib"
3850 ;;
3851 os/2*)
3852 ln_s="cp -f"
3853 objformat="aout"
3854 add_cppflags -D_GNU_SOURCE
3855 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3856 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3857 LIBSUF="_s.a"
3858 SLIBPREF=""
3859 SLIBSUF=".dll"
3860 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3861 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3862 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3863 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3864 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3865 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3866 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3867 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3868 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3869 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3870 enable dos_paths
3871 ;;
3872 gnu/kfreebsd)
3873 add_cppflags -D_BSD_SOURCE
3874 ;;
3875 gnu)
3876 ;;
3877 qnx)
3878 add_cppflags -D_QNX_SOURCE
3879 network_extralibs="-lsocket"
3880 ;;
3881 symbian)
3882 SLIBSUF=".dll"
3883 enable dos_paths
3884 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3885 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3886 add_ldflags -Wl,--target1-abs,--no-undefined \
3887 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3888 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3889 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3890 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3891 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3892 ;;
3893 osf1)
3894 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3895 ;;
3896 minix)
3897 ;;
3898 plan9)
3899 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3900 -D_REENTRANT_SOURCE \
3901 -D_RESEARCH_SOURCE \
3902 -DFD_SETSIZE=96 \
3903 -DHAVE_SOCK_OPTS
3904 add_compat strtod.o strtod=avpriv_strtod
3905 network_extralibs='-lbsd'
3906 exeobjs=compat/plan9/main.o
3907 cp_f='cp'
3908 ;;
3909 none)
3910 ;;
3911 *)
3912 die "Unknown OS '$target_os'."
3913 ;;
3914 esac
3915
3916 # determine libc flavour
3917
3918 probe_libc(){
3919 pfx=$1
3920 pfx_no_=${pfx%_}
3921 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3922 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3923 eval ${pfx}libc_type=uclibc
3924 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3925 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3926 eval ${pfx}libc_type=glibc
3927 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3928 # MinGW headers can be installed on Cygwin, so check for newlib first.
3929 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3930 eval ${pfx}libc_type=newlib
3931 add_${pfx}cppflags -U__STRICT_ANSI__
3932 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3933 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3934 eval ${pfx}libc_type=mingw64
3935 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3936 eval test \$${pfx_no_}cc_type = "gcc" &&
3937 add_${pfx}cppflags -D__printf__=__gnu_printf__
3938 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3939 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3940 eval ${pfx}libc_type=mingw32
3941 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3942 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3943 die "ERROR: MinGW32 runtime version must be >= 3.15."
3944 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3945 eval test \$${pfx_no_}cc_type = "gcc" &&
3946 add_${pfx}cppflags -D__printf__=__gnu_printf__
3947 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3948 eval ${pfx}libc_type=msvcrt
3949 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3950 if [ "$pfx" = host_ ]; then
3951 add_host_cppflags -Dsnprintf=_snprintf
3952 else
3953 add_compat strtod.o strtod=avpriv_strtod
3954 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3955 _snprintf=avpriv_snprintf \
3956 vsnprintf=avpriv_vsnprintf
3957 fi
3958 fi
3959 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3960 # 0x601 by default unless something else is set by the user.
3961 # This can easily lead to us detecting functions only present
3962 # in such new versions and producing binaries requiring windows 7.0.
3963 # Therefore explicitly set the default to XP unless the user has
3964 # set something else on the command line.
3965 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3966 # family. For these cases, configure is free to use any functions
3967 # found in the SDK headers by default. (Alternatively, we could force
3968 # _WIN32_WINNT to 0x0602 in that case.)
3969 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3970 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3971 #ifdef WINAPI_FAMILY
3972 #include <winapifamily.h>
3973 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3974 #error not desktop
3975 #endif
3976 #endif
3977 EOF
3978 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3979 eval ${pfx}libc_type=klibc
3980 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3981 eval ${pfx}libc_type=bionic
3982 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3983 eval ${pfx}libc_type=solaris
3984 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3985 else
3986 eval ${pfx}libc_type=default
3987 add_${pfx}cppflags -D_DEFAULT_SOURCE
3988 fi
3989 }
3990
3991 probe_libc
3992 test -n "$libc_type" && enable libc_$libc_type
3993 probe_libc host_
3994 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3995
3996 case $libc_type in
3997 bionic)
3998 add_compat strtod.o strtod=avpriv_strtod
3999 ;;
4000 esac
4001
4002 # hacks for compiler/libc/os combinations
4003
4004 if enabled_all tms470 libc_glibc; then
4005 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4006 add_cppflags -D__USER_LABEL_PREFIX__=
4007 add_cppflags -D__builtin_memset=memset
4008 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4009 add_cflags -pds=48 # incompatible redefinition of macro
4010 fi
4011
4012 if enabled_all ccc libc_glibc; then
4013 add_ldflags -Wl,-z,now # calls to libots crash without this
4014 fi
4015
4016 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4017 add_cppflags '-I\$(SRC_PATH)/compat/float'
4018
4019 esc(){
4020 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4021 }
4022
4023 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4024
4025 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4026
4027 set_default $PATHS_LIST
4028 set_default nm
4029
4030 # we need to build at least one lib type
4031 if ! enabled_any static shared; then
4032 cat <<EOF
4033 At least one library type must be built.
4034 Specify --enable-static to build the static libraries or --enable-shared to
4035 build the shared libraries as well. To only build the shared libraries specify
4036 --disable-static in addition to --enable-shared.
4037 EOF
4038 exit 1;
4039 fi
4040
4041 die_license_disabled() {
4042 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4043 }
4044
4045 die_license_disabled gpl libcdio
4046 die_license_disabled gpl libx264
4047 die_license_disabled gpl libx265
4048 die_license_disabled gpl libxavs
4049 die_license_disabled gpl libxvid
4050 die_license_disabled gpl x11grab
4051
4052 die_license_disabled nonfree cuda
4053 die_license_disabled nonfree libfaac
4054 die_license_disabled nonfree libfdk_aac
4055 die_license_disabled nonfree nvenc
4056 die_license_disabled nonfree openssl
4057
4058 die_license_disabled version3 libopencore_amrnb
4059 die_license_disabled version3 libopencore_amrwb
4060 die_license_disabled version3 libvo_aacenc
4061 die_license_disabled version3 libvo_amrwbenc
4062
4063 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4064
4065 disabled optimizations || check_cflags -fomit-frame-pointer
4066
4067 enable_weak_pic() {
4068 disabled pic && return
4069 enable pic
4070 add_cppflags -DPIC
4071 case "$target_os" in
4072 mingw*|cygwin*)
4073 ;;
4074 *)
4075 add_cflags -fPIC
4076 ;;
4077 esac
4078 add_asflags -fPIC
4079 }
4080
4081 enabled pic && enable_weak_pic
4082
4083 check_cc <<EOF || die "Symbol mangling check failed."
4084 int ff_extern;
4085 EOF
4086 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4087 extern_prefix=${sym%%ff_extern*}
4088
4089 check_cc <<EOF && enable_weak inline_asm
4090 void foo(void) { __asm__ volatile ("" ::); }
4091 EOF
4092
4093 _restrict=
4094 for restrict_keyword in restrict __restrict__ __restrict; do
4095 check_cc <<EOF && _restrict=$restrict_keyword && break
4096 void foo(char * $restrict_keyword p);
4097 EOF
4098 done
4099
4100 check_cc <<EOF && enable pragma_deprecated
4101 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4102 EOF
4103
4104 check_cc <<EOF && enable attribute_packed
4105 struct { int x; } __attribute__((packed)) x;
4106 EOF
4107
4108 check_cc <<EOF && enable attribute_may_alias
4109 union { int x; } __attribute__((may_alias)) x;
4110 EOF
4111
4112 check_cc <<EOF || die "endian test failed"
4113 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4114 EOF
4115 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4116
4117 check_gas() {
4118 log "check_gas using '$as' as AS"
4119 # :vararg is used on aarch64, arm and ppc altivec
4120 check_as <<EOF || return 1
4121 .macro m n, y:vararg=0
4122 \n: .int \y
4123 .endm
4124 m x
4125 EOF
4126 # .altmacro is only used in arm asm
4127 ! enabled arm || check_as <<EOF || return 1
4128 .altmacro
4129 EOF
4130 enable gnu_as
4131 return 0
4132 }
4133
4134 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4135 nogas=:
4136 enabled_any arm aarch64 && nogas=die
4137 enabled_all ppc altivec && nogas=warn
4138 as_noop=-v
4139
4140 case $as_type in
4141 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4142 gcc) gaspp_as_type=gas ;;
4143 *) gaspp_as_type=$as_type ;;
4144 esac
4145
4146 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4147
4148 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4149 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4150
4151 if ! check_gas ; then
4152 as=${gas:=$as}
4153 check_gas || \
4154 $nogas "GNU assembler not found, install/update gas-preprocessor"
4155 fi
4156
4157 check_as <<EOF && enable as_func
4158 .func test
4159 .endfunc
4160 EOF
4161 fi
4162
4163 check_inline_asm inline_asm_labels '"1:\n"'
4164
4165 if enabled aarch64; then
4166 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4167 # internal assembler in clang 3.3 does not support this instruction
4168 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4169 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4170
4171 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4172
4173 elif enabled alpha; then
4174
4175 check_cflags -mieee
4176
4177 elif enabled arm; then
4178
4179 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4180 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4181 enabled thumb && check_cflags -mthumb || check_cflags -marm
4182
4183 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4184 enable vfp_args
4185 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4186 enable vfp_args
4187 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4188 case "${cross_prefix:-$cc}" in
4189 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4190 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4191 __asm__ (".eabi_attribute 28, 1");
4192 int main(void) { return 0; }
4193 EOF
4194 esac
4195 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4196 fi
4197
4198 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4199 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4200 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4201 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4202 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4203 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4204
4205 [ $target_os = linux ] || [ $target_os = android ] ||
4206 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4207 $ARCH_EXT_LIST_ARM
4208
4209 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4210
4211 check_as <<EOF && enable as_dn_directive
4212 ra .dn d0.i16
4213 .unreq ra
4214 EOF
4215
4216 # llvm's integrated assembler supports .object_arch from llvm 3.5
4217 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4218 .object_arch armv4
4219 EOF
4220
4221 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4222
4223 elif enabled mips; then
4224
4225 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4226
4227 # make sure that only an instruction set is enabled
4228 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4229
4230 if enabled mips64; then
4231 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4232 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4233 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4234 else
4235 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4236 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4237 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4238 fi
4239
4240 elif enabled parisc; then
4241
4242 if enabled gcc; then
4243 case $($cc -dumpversion) in
4244 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4245 esac
4246 fi
4247
4248 elif enabled ppc; then
4249
4250 enable local_aligned_8 local_aligned_16
4251
4252 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4253 check_inline_asm ibm_asm '"add 0, 0, 0"'
4254 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4255 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4256
4257 # AltiVec flags: The FSF version of GCC differs from the Apple version
4258 if enabled altivec; then
4259 check_cflags -maltivec -mabi=altivec &&
4260 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4261 check_cflags -faltivec
4262
4263 # check if our compiler supports Motorola AltiVec C API
4264 check_cc <<EOF || disable altivec
4265 $inc_altivec_h
4266 int main(void) {
4267 vector signed int v1 = (vector signed int) { 0 };
4268 vector signed int v2 = (vector signed int) { 1 };
4269 v1 = vec_add(v1, v2);
4270 return 0;
4271 }
4272 EOF
4273
4274 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4275 fi
4276
4277 if enabled vsx; then
4278 check_cflags -mvsx &&
4279 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4280 fi
4281
4282 if enabled power8; then
4283 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4284 fi
4285
4286 elif enabled x86; then
4287
4288 check_builtin rdtsc intrin.h "__rdtsc()"
4289 check_builtin mm_empty mmintrin.h "_mm_empty()"
4290
4291 enable local_aligned_8 local_aligned_16
4292
4293 # check whether EBP is available on x86
4294 # As 'i' is stored on the stack, this program will crash
4295 # if the base pointer is used to access it because the
4296 # base pointer is cleared in the inline assembly code.
4297 check_exec_crash <<EOF && enable ebp_available
4298 volatile int i=0;
4299 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4300 return i;
4301 EOF
4302
4303 # check whether EBX is available on x86
4304 check_inline_asm ebx_available '""::"b"(0)' &&
4305 check_inline_asm ebx_available '"":::"%ebx"'
4306
4307 # check whether xmm clobbers are supported
4308 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4309
4310 # check whether binutils is new enough to compile SSSE3/MMXEXT
4311 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4312 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4313
4314 if ! disabled_any asm mmx yasm; then
4315 if check_cmd $yasmexe --version; then
4316 enabled x86_64 && yasm_extra="-m amd64"
4317 yasm_debug="-g dwarf2"
4318 elif check_cmd nasm -v; then
4319 yasmexe=nasm
4320 yasm_debug="-g -F dwarf"
4321 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4322 fi
4323
4324 YASMFLAGS="-f $objformat $yasm_extra"
4325 enabled pic && append YASMFLAGS "-DPIC"
4326 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4327 case "$objformat" in
4328 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4329 esac
4330
4331 check_yasm "movbe ecx, [5]" && enable yasm ||
4332 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4333 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4334 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4335 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4336 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4337 check_yasm "CPU amdnop" || disable cpunop
4338 fi
4339
4340 case "$cpu" in
4341 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4342 disable fast_clz
4343 ;;
4344 esac
4345
4346 fi
4347
4348 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4349
4350 check_ldflags -Wl,--as-needed
4351
4352 if check_func dlopen; then
4353 ldl=
4354 elif check_func dlopen -ldl; then
4355 ldl=-ldl
4356 fi
4357
4358 if ! disabled network; then
4359 check_func getaddrinfo $network_extralibs
4360 check_func inet_aton $network_extralibs
4361
4362 check_type netdb.h "struct addrinfo"
4363 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4364 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4365 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4366 check_type poll.h "struct pollfd"
4367 check_type netinet/sctp.h "struct sctp_event_subscribe"
4368 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4369 check_type netinet/in.h "struct sockaddr_in6"
4370 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4371 check_type "sys/types.h sys/socket.h" socklen_t
4372
4373 # Prefer arpa/inet.h over winsock2
4374 if check_header arpa/inet.h ;