mpjpeg: Cope with multipart lacking the initial CRLF
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
178
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-frei0r enable frei0r video filtering
183 --enable-gnutls enable gnutls [no]
184 --enable-libbs2b enable bs2b DSP library [no]
185 --enable-libcdio enable audio CD grabbing with libcdio
186 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
187 and libraw1394 [no]
188 --enable-libdcadec enable DCA decoding via libdcadec [no]
189 --enable-libfaac enable AAC encoding via libfaac [no]
190 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
191 --enable-libfreetype enable libfreetype [no]
192 --enable-libgsm enable GSM de/encoding via libgsm [no]
193 --enable-libilbc enable iLBC de/encoding via libilbc [no]
194 --enable-libmfx enable HW acceleration through libmfx
195 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
196 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
197 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
198 --enable-libopencv enable video filtering via libopencv [no]
199 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
200 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
201 --enable-libopus enable Opus de/encoding via libopus [no]
202 --enable-libpulse enable Pulseaudio input via libpulse [no]
203 --enable-librtmp enable RTMP[E] support via librtmp [no]
204 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
205 --enable-libsnappy enable Snappy compression [no]
206 --enable-libspeex enable Speex de/encoding via libspeex [no]
207 --enable-libtheora enable Theora encoding via libtheora [no]
208 --enable-libtwolame enable MP2 encoding via libtwolame [no]
209 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
210 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
211 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
212 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
213 --enable-libwavpack enable wavpack encoding via libwavpack [no]
214 --enable-libwebp enable WebP encoding via libwebp [no]
215 --enable-libx264 enable H.264 encoding via x264 [no]
216 --enable-libx265 enable HEVC encoding via x265 [no]
217 --enable-libxavs enable AVS encoding via xavs [no]
218 --enable-libxcb enable X11 grabbing using XCB [no]
219 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
220 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
221 --enable-libxvid enable Xvid encoding via xvidcore,
222 native MPEG-4/Xvid encoder exists [no]
223 --enable-mmal enable decoding via MMAL [no]
224 --enable-nvenc enable encoding via NVENC [no]
225 --enable-openssl enable openssl [no]
226 --enable-x11grab enable X11 grabbing (legacy) [no]
227 --enable-zlib enable zlib [autodetect]
228
229 Toolchain options:
230 --arch=ARCH select architecture [$arch]
231 --cpu=CPU select the minimum required CPU (affects
232 instruction selection, may crash on older CPUs)
233 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
234 --enable-cross-compile assume a cross-compiler is used
235 --sysroot=PATH root of cross-build tree
236 --sysinclude=PATH location of cross-build system headers
237 --target-os=OS compiler targets OS [$target_os]
238 --target-exec=CMD command to run executables on target
239 --target-path=DIR path to view of build directory on target
240 --target-samples=DIR path to samples directory on target
241 --toolchain=NAME set tool defaults according to NAME
242 --nm=NM use nm tool
243 --ar=AR use archive tool AR [$ar_default]
244 --as=AS use assembler AS [$as_default]
245 --cc=CC use C compiler CC [$cc_default]
246 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
247 --ld=LD use linker LD
248 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
249 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
250 --host-cc=HOSTCC use host C compiler HOSTCC
251 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
252 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
253 --host-ld=HOSTLD use host linker HOSTLD
254 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
255 --host-libs=HLIBS use libs HLIBS when linking for host
256 --host-os=OS compiler host OS [$target_os]
257 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
258 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
259 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
260 --extra-libs=ELIBS add ELIBS [$ELIBS]
261 --extra-version=STRING version string suffix []
262 --optflags=OPTFLAGS override optimization-related compiler flags
263 --build-suffix=SUFFIX library name suffix []
264 --enable-pic build position-independent code
265 --enable-thumb compile for Thumb instruction set
266 --enable-lto use link-time optimization
267 --env="ENV=override" override the environment variables
268
269 Advanced options (experts only):
270 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
271 --custom-allocator=NAME use a supported custom allocator
272 --disable-symver disable symbol versioning
273 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
274 --disable-safe-bitstream-reader
275 disable buffer boundary checking in bitreaders
276 (faster, but may crash)
277 --enable-memalign-hack emulate memalign, interferes with memory debuggers
278 --enable-sram allow use of on-chip SRAM
279
280 Optimization options (experts only):
281 --disable-asm disable all assembly optimizations
282 --disable-altivec disable AltiVec optimizations
283 --disable-vsx disable VSX optimizations
284 --disable-power8 disable POWER8 optimizations
285 --disable-amd3dnow disable 3DNow! optimizations
286 --disable-amd3dnowext disable 3DNow! extended optimizations
287 --disable-mmx disable MMX optimizations
288 --disable-mmxext disable MMXEXT optimizations
289 --disable-sse disable SSE optimizations
290 --disable-sse2 disable SSE2 optimizations
291 --disable-sse3 disable SSE3 optimizations
292 --disable-ssse3 disable SSSE3 optimizations
293 --disable-sse4 disable SSE4 optimizations
294 --disable-sse42 disable SSE4.2 optimizations
295 --disable-avx disable AVX optimizations
296 --disable-xop disable XOP optimizations
297 --disable-fma3 disable FMA3 optimizations
298 --disable-fma4 disable FMA4 optimizations
299 --disable-avx2 disable AVX2 optimizations
300 --disable-armv5te disable armv5te optimizations
301 --disable-armv6 disable armv6 optimizations
302 --disable-armv6t2 disable armv6t2 optimizations
303 --disable-vfp disable VFP optimizations
304 --disable-neon disable NEON optimizations
305 --disable-inline-asm disable use of inline assembly
306 --disable-yasm disable use of nasm/yasm assembly
307
308 Developer options (useful when working on Libav itself):
309 --disable-debug disable debugging symbols
310 --enable-debug=LEVEL set the debug level [$debuglevel]
311 --disable-optimizations disable compiler optimizations
312 --enable-extra-warnings enable more compiler warnings
313 --samples=PATH location of test samples for FATE, if not set use
314 \$LIBAV_SAMPLES at make invocation time.
315 --enable-neon-clobber-test check NEON registers for clobbering (should be
316 used only for debugging purposes)
317 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
318 should be used only for debugging purposes)
319 --enable-random randomly enable/disable components
320 --disable-random
321 --enable-random=LIST randomly enable/disable specific components or
322 --disable-random=LIST component groups. LIST is a comma-separated list
323 of NAME[:PROB] entries where NAME is a component
324 (group) and PROB the probability associated with
325 NAME (default 0.5).
326 --random-seed=VALUE seed value for --enable/disable-random
327 --disable-valgrind-backtrace do not print a backtrace under Valgrind
328 (only applies to --disable-optimizations builds)
329
330 NOTE: Object files are built at the place where configure is launched.
331 EOF
332 exit 0
333 }
334
335 quotes='""'
336
337 log(){
338 echo "$@" >> $logfile
339 }
340
341 log_file(){
342 log BEGIN $1
343 pr -n -t $1 >> $logfile
344 log END $1
345 }
346
347 echolog(){
348 log "$@"
349 echo "$@"
350 }
351
352 warn(){
353 log "WARNING: $*"
354 WARNINGS="${WARNINGS}WARNING: $*\n"
355 }
356
357 die(){
358 echolog "$@"
359 cat <<EOF
360
361 If you think configure made a mistake, make sure you are using the latest
362 version from Git. If the latest version fails, report the problem to the
363 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
364 EOF
365 if disabled logging; then
366 cat <<EOF
367 Rerun configure with logging enabled (do not use --disable-logging), and
368 include the log this produces with your report.
369 EOF
370 else
371 cat <<EOF
372 Include the log file "$logfile" produced by configure as this will help
373 solving the problem.
374 EOF
375 fi
376 exit 1
377 }
378
379 # Avoid locale weirdness, besides we really just want to translate ASCII.
380 toupper(){
381 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
382 }
383
384 tolower(){
385 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
386 }
387
388 c_escape(){
389 echo "$*" | sed 's/["\\]/\\\0/g'
390 }
391
392 sh_quote(){
393 v=$(echo "$1" | sed "s/'/'\\\\''/g")
394 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
395 echo "$v"
396 }
397
398 cleanws(){
399 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
400 }
401
402 filter(){
403 pat=$1
404 shift
405 for v; do
406 eval "case $v in $pat) echo $v ;; esac"
407 done
408 }
409
410 filter_out(){
411 pat=$1
412 shift
413 for v; do
414 eval "case $v in $pat) ;; *) echo $v ;; esac"
415 done
416 }
417
418 map(){
419 m=$1
420 shift
421 for v; do eval $m; done
422 }
423
424 add_suffix(){
425 suffix=$1
426 shift
427 for v; do echo ${v}${suffix}; done
428 }
429
430 set_all(){
431 value=$1
432 shift
433 for var in $*; do
434 eval $var=$value
435 done
436 }
437
438 set_weak(){
439 value=$1
440 shift
441 for var; do
442 eval : \${$var:=$value}
443 done
444 }
445
446 sanitize_var_name(){
447 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
448 }
449
450 set_safe(){
451 var=$1
452 shift
453 eval $(sanitize_var_name "$var")='$*'
454 }
455
456 get_safe(){
457 eval echo \$$(sanitize_var_name "$1")
458 }
459
460 pushvar(){
461 for pvar in $*; do
462 eval level=\${${pvar}_level:=0}
463 eval ${pvar}_${level}="\$$pvar"
464 eval ${pvar}_level=$(($level+1))
465 done
466 }
467
468 popvar(){
469 for pvar in $*; do
470 eval level=\${${pvar}_level:-0}
471 test $level = 0 && continue
472 eval level=$(($level-1))
473 eval $pvar="\${${pvar}_${level}}"
474 eval ${pvar}_level=$level
475 eval unset ${pvar}_${level}
476 done
477 }
478
479 enable(){
480 set_all yes $*
481 }
482
483 disable(){
484 set_all no $*
485 }
486
487 enable_weak(){
488 set_weak yes $*
489 }
490
491 disable_weak(){
492 set_weak no $*
493 }
494
495 enable_safe(){
496 for var; do
497 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
498 done
499 }
500
501 disable_safe(){
502 for var; do
503 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
504 done
505 }
506
507 do_enable_deep(){
508 for var; do
509 enabled $var && continue
510 eval sel="\$${var}_select"
511 eval sgs="\$${var}_suggest"
512 pushvar var sgs
513 enable_deep $sel
514 popvar sgs
515 enable_deep_weak $sgs
516 popvar var
517 done
518 }
519
520 enable_deep(){
521 do_enable_deep $*
522 enable $*
523 }
524
525 enable_deep_weak(){
526 for var; do
527 disabled $var && continue
528 pushvar var
529 do_enable_deep $var
530 popvar var
531 enable_weak $var
532 done
533 }
534
535 enabled(){
536 test "${1#!}" = "$1" && op== || op=!=
537 eval test "x\$${1#!}" $op "xyes"
538 }
539
540 disabled(){
541 test "${1#!}" = "$1" && op== || op=!=
542 eval test "x\$${1#!}" $op "xno"
543 }
544
545 enabled_all(){
546 for opt; do
547 enabled $opt || return 1
548 done
549 }
550
551 disabled_all(){
552 for opt; do
553 disabled $opt || return 1
554 done
555 }
556
557 enabled_any(){
558 for opt; do
559 enabled $opt && return 0
560 done
561 }
562
563 disabled_any(){
564 for opt; do
565 disabled $opt && return 0
566 done
567 return 1
568 }
569
570 set_default(){
571 for opt; do
572 eval : \${$opt:=\$${opt}_default}
573 done
574 }
575
576 is_in(){
577 value=$1
578 shift
579 for var in $*; do
580 [ $var = $value ] && return 0
581 done
582 return 1
583 }
584
585 do_check_deps(){
586 for cfg; do
587 cfg="${cfg#!}"
588 enabled ${cfg}_checking && die "Circular dependency for $cfg."
589 disabled ${cfg}_checking && continue
590 enable ${cfg}_checking
591 append allopts $cfg
592
593 eval dep_all="\$${cfg}_deps"
594 eval dep_any="\$${cfg}_deps_any"
595 eval dep_sel="\$${cfg}_select"
596 eval dep_sgs="\$${cfg}_suggest"
597 eval dep_ifa="\$${cfg}_if"
598 eval dep_ifn="\$${cfg}_if_any"
599
600 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
601 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
602 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
603
604 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
605 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
606 enabled_all $dep_all || disable $cfg
607 enabled_any $dep_any || disable $cfg
608 disabled_any $dep_sel && disable $cfg
609
610 if enabled $cfg; then
611 enable_deep $dep_sel
612 enable_deep_weak $dep_sgs
613 fi
614
615 disable ${cfg}_checking
616 done
617 }
618
619 check_deps(){
620 unset allopts
621
622 do_check_deps "$@"
623
624 for cfg in $allopts; do
625 enabled $cfg || continue
626 eval dep_extralibs="\$${cfg}_extralibs"
627 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
628 done
629 }
630
631 print_config(){
632 pfx=$1
633 files=$2
634 shift 2
635 map 'eval echo "$v \${$v:-no}"' "$@" |
636 awk "BEGIN { split(\"$files\", files) }
637 {
638 c = \"$pfx\" toupper(\$1);
639 v = \$2;
640 sub(/yes/, 1, v);
641 sub(/no/, 0, v);
642 for (f in files) {
643 file = files[f];
644 if (file ~ /\\.h\$/) {
645 printf(\"#define %s %d\\n\", c, v) >>file;
646 } else if (file ~ /\\.asm\$/) {
647 printf(\"%%define %s %d\\n\", c, v) >>file;
648 } else if (file ~ /\\.mak\$/) {
649 n = -v ? \"\" : \"!\";
650 printf(\"%s%s=yes\\n\", n, c) >>file;
651 }
652 }
653 }"
654 }
655
656 print_enabled(){
657 suf=$1
658 shift
659 for v; do
660 enabled $v && printf "%s\n" ${v%$suf};
661 done
662 }
663
664 append(){
665 var=$1
666 shift
667 eval "$var=\"\$$var $*\""
668 }
669
670 prepend(){
671 var=$1
672 shift
673 eval "$var=\"$* \$$var\""
674 }
675
676 unique(){
677 var=$1
678 uniq_list=""
679 for tok in $(eval echo \$$var); do
680 uniq_list="$(filter_out $tok $uniq_list) $tok"
681 done
682 eval "$var=\"${uniq_list}\""
683 }
684
685 add_cppflags(){
686 append CPPFLAGS "$@"
687 }
688
689 add_cflags(){
690 append CFLAGS $($cflags_filter "$@")
691 }
692
693 add_asflags(){
694 append ASFLAGS $($asflags_filter "$@")
695 }
696
697 add_ldflags(){
698 append LDFLAGS $($ldflags_filter "$@")
699 }
700
701 add_ldexeflags(){
702 append LDEXEFLAGS $($ldflags_filter "$@")
703 }
704
705 add_stripflags(){
706 append STRIPFLAGS "$@"
707 }
708
709 add_extralibs(){
710 prepend extralibs $($ldflags_filter "$@")
711 }
712
713 add_host_cppflags(){
714 append host_cppflags "$@"
715 }
716
717 add_host_cflags(){
718 append host_cflags $($host_cflags_filter "$@")
719 }
720
721 add_host_ldflags(){
722 append host_ldflags $($host_ldflags_filter "$@")
723 }
724
725 add_compat(){
726 append compat_objs $1
727 shift
728 map 'add_cppflags -D$v' "$@"
729 }
730
731 check_cmd(){
732 log "$@"
733 "$@" >> $logfile 2>&1
734 }
735
736 cc_o(){
737 eval printf '%s\\n' $CC_O
738 }
739
740 cc_e(){
741 eval printf '%s\\n' $CC_E
742 }
743
744 check_cc(){
745 log check_cc "$@"
746 cat > $TMPC
747 log_file $TMPC
748 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
749 }
750
751 check_cpp(){
752 log check_cpp "$@"
753 cat > $TMPC
754 log_file $TMPC
755 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
756 }
757
758 as_o(){
759 eval printf '%s\\n' $AS_O
760 }
761
762 check_as(){
763 log check_as "$@"
764 cat > $TMPS
765 log_file $TMPS
766 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
767 }
768
769 check_inline_asm(){
770 log check_inline_asm "$@"
771 name="$1"
772 code="$2"
773 shift 2
774 disable $name
775 check_cc "$@" <<EOF && enable $name
776 void foo(void){ __asm__ volatile($code); }
777 EOF
778 }
779
780 check_insn(){
781 log check_insn "$@"
782 check_inline_asm ${1}_inline "\"$2\""
783 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
784 }
785
786 check_yasm(){
787 log check_yasm "$@"
788 echo "$1" > $TMPS
789 log_file $TMPS
790 shift 1
791 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
792 }
793
794 ld_o(){
795 eval printf '%s\\n' $LD_O
796 }
797
798 check_ld(){
799 log check_ld "$@"
800 flags=$(filter_out '-l*' "$@")
801 libs=$(filter '-l*' "$@")
802 check_cc $($cflags_filter $flags) || return
803 flags=$($ldflags_filter $flags)
804 libs=$($ldflags_filter $libs)
805 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
806 }
807
808 print_include(){
809 hdr=$1
810 test "${hdr%.h}" = "${hdr}" &&
811 echo "#include $hdr" ||
812 echo "#include <$hdr>"
813 }
814
815 check_code(){
816 log check_code "$@"
817 check=$1
818 headers=$2
819 code=$3
820 shift 3
821 {
822 for hdr in $headers; do
823 print_include $hdr
824 done
825 echo "int main(void) { $code; return 0; }"
826 } | check_$check "$@"
827 }
828
829 check_cppflags(){
830 log check_cppflags "$@"
831 check_cc "$@" <<EOF && append CPPFLAGS "$@"
832 int x;
833 EOF
834 }
835
836 test_cflags(){
837 log test_cflags "$@"
838 set -- $($cflags_filter "$@")
839 check_cc "$@" <<EOF
840 int x;
841 EOF
842 }
843
844 check_cflags(){
845 log check_cflags "$@"
846 test_cflags "$@" && add_cflags "$@"
847 }
848
849 test_ldflags(){
850 log test_ldflags "$@"
851 check_ld "$@" <<EOF
852 int main(void){ return 0; }
853 EOF
854 }
855
856 check_ldflags(){
857 log check_ldflags "$@"
858 test_ldflags "$@" && add_ldflags "$@"
859 }
860
861 test_stripflags(){
862 log test_stripflags "$@"
863 # call check_cc to get a fresh TMPO
864 check_cc <<EOF
865 int main(void) { return 0; }
866 EOF
867 check_cmd $strip $STRIPFLAGS "$@" $TMPO
868 }
869
870 check_stripflags(){
871 log check_stripflags "$@"
872 test_stripflags "$@" && add_stripflags "$@"
873 }
874
875 check_header(){
876 log check_header "$@"
877 header=$1
878 shift
879 disable_safe $header
880 check_cpp "$@" <<EOF && enable_safe $header
881 #include <$header>
882 int x;
883 EOF
884 }
885
886 check_func(){
887 log check_func "$@"
888 func=$1
889 shift
890 disable $func
891 check_ld "$@" <<EOF && enable $func
892 extern int $func();
893 int main(void){ $func(); }
894 EOF
895 }
896
897 check_mathfunc(){
898 log check_mathfunc "$@"
899 func=$1
900 narg=$2
901 shift 2
902 test $narg = 2 && args="f, g" || args="f"
903 disable $func
904 check_ld "$@" <<EOF && enable $func
905 #include <math.h>
906 float foo(float f, float g) { return $func($args); }
907 int main(void){ return 0; }
908 EOF
909 }
910
911 check_func_headers(){
912 log check_func_headers "$@"
913 headers=$1
914 funcs=$2
915 shift 2
916 {
917 for hdr in $headers; do
918 print_include $hdr
919 done
920 for func in $funcs; do
921 echo "long check_$func(void) { return (long) $func; }"
922 done
923 echo "int main(void) { return 0; }"
924 } | check_ld "$@" && enable $funcs && enable_safe $headers
925 }
926
927 check_cpp_condition(){
928 log check_cpp_condition "$@"
929 header=$1
930 condition=$2
931 shift 2
932 check_cpp "$@" <<EOF
933 #include <$header>
934 #if !($condition)
935 #error "unsatisfied condition: $condition"
936 #endif
937 EOF
938 }
939
940 check_lib(){
941 log check_lib "$@"
942 header="$1"
943 func="$2"
944 shift 2
945 check_header $header && check_func $func "$@" && add_extralibs "$@"
946 }
947
948 check_lib2(){
949 log check_lib2 "$@"
950 headers="$1"
951 funcs="$2"
952 shift 2
953 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
954 }
955
956 check_pkg_config(){
957 log check_pkg_config "$@"
958 pkg="$1"
959 headers="$2"
960 funcs="$3"
961 shift 3
962 check_cmd $pkg_config --exists --print-errors $pkg || return
963 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
964 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
965 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
966 set_safe "${pkg}_cflags" $pkg_cflags &&
967 set_safe "${pkg}_libs" $pkg_libs
968 }
969
970 check_exec(){
971 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
972 }
973
974 check_exec_crash(){
975 code=$(cat)
976
977 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
978 # are safe but may not be available everywhere. Thus we use
979 # raise(SIGTERM) instead. The check is run in a subshell so we
980 # can redirect the "Terminated" message from the shell. SIGBUS
981 # is not defined by standard C so it is used conditionally.
982
983 (check_exec "$@") >> $logfile 2>&1 <<EOF
984 #include <signal.h>
985 static void sighandler(int sig){
986 raise(SIGTERM);
987 }
988 int foo(void){
989 $code
990 }
991 int (*func_ptr)(void) = foo;
992 int main(void){
993 signal(SIGILL, sighandler);
994 signal(SIGFPE, sighandler);
995 signal(SIGSEGV, sighandler);
996 #ifdef SIGBUS
997 signal(SIGBUS, sighandler);
998 #endif
999 return func_ptr();
1000 }
1001 EOF
1002 }
1003
1004 check_type(){
1005 log check_type "$@"
1006 headers=$1
1007 type=$2
1008 shift 2
1009 disable_safe "$type"
1010 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1011 }
1012
1013 check_struct(){
1014 log check_struct "$@"
1015 headers=$1
1016 struct=$2
1017 member=$3
1018 shift 3
1019 disable_safe "${struct}_${member}"
1020 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1021 enable_safe "${struct}_${member}"
1022 }
1023
1024 check_builtin(){
1025 log check_builtin "$@"
1026 name=$1
1027 headers=$2
1028 builtin=$3
1029 shift 3
1030 disable "$name"
1031 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1032 }
1033
1034 check_compile_assert(){
1035 log check_compile_assert "$@"
1036 name=$1
1037 headers=$2
1038 condition=$3
1039 shift 3
1040 disable "$name"
1041 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1042 }
1043
1044 require(){
1045 name="$1"
1046 header="$2"
1047 func="$3"
1048 shift 3
1049 check_lib $header $func "$@" || die "ERROR: $name not found"
1050 }
1051
1052 require2(){
1053 name="$1"
1054 headers="$2"
1055 func="$3"
1056 shift 3
1057 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1058 }
1059
1060 require_pkg_config(){
1061 pkg="$1"
1062 check_pkg_config "$@" || die "ERROR: $pkg not found"
1063 add_cflags $(get_safe "${pkg}_cflags")
1064 add_extralibs $(get_safe "${pkg}_libs")
1065 }
1066
1067 hostcc_e(){
1068 eval printf '%s\\n' $HOSTCC_E
1069 }
1070
1071 hostcc_o(){
1072 eval printf '%s\\n' $HOSTCC_O
1073 }
1074
1075 check_host_cc(){
1076 log check_host_cc "$@"
1077 cat > $TMPC
1078 log_file $TMPC
1079 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1080 }
1081
1082 check_host_cpp(){
1083 log check_host_cpp "$@"
1084 cat > $TMPC
1085 log_file $TMPC
1086 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1087 }
1088
1089 check_host_cppflags(){
1090 log check_host_cppflags "$@"
1091 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1092 int x;
1093 EOF
1094 }
1095
1096 check_host_cflags(){
1097 log check_host_cflags "$@"
1098 set -- $($host_cflags_filter "$@")
1099 check_host_cc "$@" <<EOF && append host_cflags "$@"
1100 int x;
1101 EOF
1102 }
1103
1104 check_host_cpp_condition(){
1105 log check_host_cpp_condition "$@"
1106 header=$1
1107 condition=$2
1108 shift 2
1109 check_host_cpp "$@" <<EOF
1110 #include <$header>
1111 #if !($condition)
1112 #error "unsatisfied condition: $condition"
1113 #endif
1114 EOF
1115 }
1116
1117 apply(){
1118 file=$1
1119 shift
1120 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1121 }
1122
1123 cp_if_changed(){
1124 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1125 mkdir -p "$(dirname $2)"
1126 $cp_f "$1" "$2"
1127 }
1128
1129 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1130 # system-dependent things.
1131
1132 AVCODEC_COMPONENTS="
1133 bsfs
1134 decoders
1135 encoders
1136 hwaccels
1137 parsers
1138 "
1139
1140 AVDEVICE_COMPONENTS="
1141 indevs
1142 outdevs
1143 "
1144 AVFILTER_COMPONENTS="
1145 filters
1146 "
1147 AVFORMAT_COMPONENTS="
1148 demuxers
1149 muxers
1150 protocols
1151 "
1152
1153 AVRESAMPLE_COMPONENTS=""
1154 AVUTIL_COMPONENTS=""
1155
1156 COMPONENT_LIST="
1157 $AVCODEC_COMPONENTS
1158 $AVDEVICE_COMPONENTS
1159 $AVFILTER_COMPONENTS
1160 $AVFORMAT_COMPONENTS
1161 $AVRESAMPLE_COMPONENTS
1162 $AVUTIL_COMPONENTS
1163 "
1164
1165 EXAMPLE_LIST="
1166 avcodec_example
1167 filter_audio_example
1168 metadata_example
1169 output_example
1170 qsvdec_example
1171 transcode_aac_example
1172 "
1173
1174 EXTERNAL_LIBRARY_LIST="
1175 avisynth
1176 bzlib
1177 frei0r
1178 gnutls
1179 libbs2b
1180 libcdio
1181 libdc1394
1182 libdcadec
1183 libfaac
1184 libfdk_aac
1185 libfontconfig
1186 libfreetype
1187 libgsm
1188 libilbc
1189 libmfx
1190 libmp3lame
1191 libopencore_amrnb
1192 libopencore_amrwb
1193 libopencv
1194 libopenh264
1195 libopenjpeg
1196 libopus
1197 libpulse
1198 librtmp
1199 libschroedinger
1200 libsnappy
1201 libspeex
1202 libtheora
1203 libtwolame
1204 libvo_aacenc
1205 libvo_amrwbenc
1206 libvorbis
1207 libvpx
1208 libwavpack
1209 libwebp
1210 libx264
1211 libx265
1212 libxavs
1213 libxcb
1214 libxcb_shm
1215 libxcb_xfixes
1216 libxvid
1217 mmal
1218 nvenc
1219 openssl
1220 x11grab
1221 zlib
1222 "
1223
1224 FEATURE_LIST="
1225 gray
1226 hardcoded_tables
1227 runtime_cpudetect
1228 safe_bitstream_reader
1229 shared
1230 small
1231 sram
1232 static
1233 swscale_alpha
1234 "
1235
1236 HWACCEL_LIST="
1237 d3d11va
1238 dxva2
1239 vaapi
1240 vda
1241 vdpau
1242 "
1243
1244 LIBRARY_LIST="
1245 avcodec
1246 avdevice
1247 avfilter
1248 avformat
1249 avresample
1250 avutil
1251 swscale
1252 "
1253
1254 LICENSE_LIST="
1255 gpl
1256 nonfree
1257 version3
1258 "
1259
1260 PROGRAM_LIST="
1261 avconv
1262 avplay
1263 avprobe
1264 "
1265
1266 SUBSYSTEM_LIST="
1267 dct
1268 doc
1269 error_resilience
1270 faan
1271 fft
1272 lsp
1273 lzo
1274 mdct
1275 network
1276 rdft
1277 "
1278
1279 CONFIG_LIST="
1280 $COMPONENT_LIST
1281 $EXAMPLE_LIST
1282 $EXTERNAL_LIBRARY_LIST
1283 $FEATURE_LIST
1284 $HWACCEL_LIST
1285 $LICENSE_LIST
1286 $LIBRARY_LIST
1287 $PROGRAM_LIST
1288 $SUBSYSTEM_LIST
1289 memalign_hack
1290 neon_clobber_test
1291 pic
1292 pod2man
1293 texi2html
1294 thumb
1295 valgrind_backtrace
1296 xmm_clobber_test
1297 "
1298
1299 THREADS_LIST="
1300 pthreads
1301 w32threads
1302 "
1303
1304 ATOMICS_LIST="
1305 atomics_gcc
1306 atomics_suncc
1307 atomics_win32
1308 "
1309
1310 ARCH_LIST="
1311 aarch64
1312 alpha
1313 arm
1314 avr32
1315 avr32_ap
1316 avr32_uc
1317 bfin
1318 ia64
1319 m68k
1320 mips
1321 mips64
1322 parisc
1323 ppc
1324 ppc64
1325 s390
1326 sh4
1327 sparc
1328 sparc64
1329 tilegx
1330 tilepro
1331 tomi
1332 x86
1333 x86_32
1334 x86_64
1335 "
1336
1337 ARCH_EXT_LIST_ARM="
1338 armv5te
1339 armv6
1340 armv6t2
1341 armv8
1342 neon
1343 vfp
1344 vfpv3
1345 "
1346
1347 ARCH_EXT_LIST_X86_SIMD="
1348 amd3dnow
1349 amd3dnowext
1350 avx
1351 avx2
1352 fma3
1353 fma4
1354 mmx
1355 mmxext
1356 sse
1357 sse2
1358 sse3
1359 sse4
1360 sse42
1361 ssse3
1362 xop
1363 "
1364
1365 ARCH_EXT_LIST_PPC="
1366 altivec
1367 dcbzl
1368 ldbrx
1369 power8
1370 ppc4xx
1371 vsx
1372 "
1373
1374 ARCH_EXT_LIST_X86="
1375 $ARCH_EXT_LIST_X86_SIMD
1376 cpunop
1377 i686
1378 "
1379
1380 ARCH_EXT_LIST_MIPS="
1381 loongson
1382 mips32r1
1383 mips64r1
1384 mips32r2
1385 mips64r2
1386 mips32r6
1387 mips64r6
1388 "
1389
1390 ARCH_EXT_LIST="
1391 $ARCH_EXT_LIST_ARM
1392 $ARCH_EXT_LIST_MIPS
1393 $ARCH_EXT_LIST_PPC
1394 $ARCH_EXT_LIST_X86
1395 vis
1396 "
1397
1398 ARCH_FEATURES="
1399 aligned_stack
1400 fast_64bit
1401 fast_clz
1402 fast_cmov
1403 local_aligned_8
1404 local_aligned_16
1405 simd_align_16
1406 "
1407
1408 BUILTIN_LIST="
1409 atomic_cas_ptr
1410 machine_rw_barrier
1411 MemoryBarrier
1412 mm_empty
1413 rdtsc
1414 sync_val_compare_and_swap
1415 "
1416 HAVE_LIST_CMDLINE="
1417 inline_asm
1418 symver
1419 yasm
1420 "
1421
1422 HAVE_LIST_PUB="
1423 bigendian
1424 fast_unaligned
1425 "
1426
1427 HEADERS_LIST="
1428 alsa_asoundlib_h
1429 altivec_h
1430 arpa_inet_h
1431 cdio_paranoia_h
1432 cdio_paranoia_paranoia_h
1433 dev_bktr_ioctl_bt848_h
1434 dev_bktr_ioctl_meteor_h
1435 dev_ic_bt8xx_h
1436 dev_video_bktr_ioctl_bt848_h
1437 dev_video_meteor_ioctl_meteor_h
1438 direct_h
1439 dlfcn_h
1440 d3d11_h
1441 dxva_h
1442 gsm_h
1443 io_h
1444 mach_mach_time_h
1445 machine_ioctl_bt848_h
1446 machine_ioctl_meteor_h
1447 malloc_h
1448 poll_h
1449 sndio_h
1450 soundcard_h
1451 sys_mman_h
1452 sys_param_h
1453 sys_resource_h
1454 sys_select_h
1455 sys_soundcard_h
1456 sys_time_h
1457 sys_un_h
1458 sys_videoio_h
1459 unistd_h
1460 valgrind_valgrind_h
1461 windows_h
1462 winsock2_h
1463 "
1464
1465 INTRINSICS_LIST="
1466 intrinsics_neon
1467 "
1468
1469 MATH_FUNCS="
1470 atanf
1471 atan2f
1472 cbrtf
1473 cosf
1474 exp2
1475 exp2f
1476 expf
1477 isinf
1478 isnan
1479 ldexpf
1480 llrint
1481 llrintf
1482 log2
1483 log2f
1484 log10f
1485 lrint
1486 lrintf
1487 powf
1488 rint
1489 round
1490 roundf
1491 sinf
1492 trunc
1493 truncf
1494 "
1495
1496 SYSTEM_FUNCS="
1497 aligned_malloc
1498 clock_gettime
1499 closesocket
1500 CommandLineToArgvW
1501 CoTaskMemFree
1502 CryptGenRandom
1503 dlopen
1504 fcntl
1505 flt_lim
1506 fork
1507 getaddrinfo
1508 gethrtime
1509 getopt
1510 GetProcessAffinityMask
1511 GetProcessMemoryInfo
1512 GetProcessTimes
1513 getrusage
1514 getservbyport
1515 GetSystemTimeAsFileTime
1516 gettimeofday
1517 gmtime_r
1518 inet_aton
1519 isatty
1520 jack_port_get_latency_range
1521 LoadLibrary
1522 localtime_r
1523 mach_absolute_time
1524 MapViewOfFile
1525 memalign
1526 mkstemp
1527 mmap
1528 mprotect
1529 nanosleep
1530 posix_memalign
1531 sched_getaffinity
1532 SetConsoleTextAttribute
1533 setmode
1534 setrlimit
1535 Sleep
1536 strerror_r
1537 sysconf
1538 sysctl
1539 usleep
1540 VirtualAlloc
1541 "
1542
1543 TOOLCHAIN_FEATURES="
1544 as_dn_directive
1545 as_func
1546 as_object_arch
1547 asm_mod_q
1548 attribute_may_alias
1549 attribute_packed
1550 ebp_available
1551 ebx_available
1552 gnu_as
1553 ibm_asm
1554 inline_asm_labels
1555 pragma_deprecated
1556 symver_asm_label
1557 symver_gnu_asm
1558 vfp_args
1559 xform_asm
1560 xmm_clobbers
1561 "
1562
1563 TYPES_LIST="
1564 CONDITION_VARIABLE_Ptr
1565 socklen_t
1566 struct_addrinfo
1567 struct_group_source_req
1568 struct_ip_mreq_source
1569 struct_ipv6_mreq
1570 struct_pollfd
1571 struct_rusage_ru_maxrss
1572 struct_sockaddr_in6
1573 struct_sockaddr_sa_len
1574 struct_sockaddr_storage
1575 struct_v4l2_frmivalenum_discrete
1576 "
1577
1578 HAVE_LIST="
1579 $ARCH_EXT_LIST
1580 $(add_suffix _external $ARCH_EXT_LIST)
1581 $(add_suffix _inline $ARCH_EXT_LIST)
1582 $ARCH_FEATURES
1583 $ATOMICS_LIST
1584 $BUILTIN_LIST
1585 $HAVE_LIST_CMDLINE
1586 $HAVE_LIST_PUB
1587 $HEADERS_LIST
1588 $INTRINSICS_LIST
1589 $MATH_FUNCS
1590 $SYSTEM_FUNCS
1591 $THREADS_LIST
1592 $TOOLCHAIN_FEATURES
1593 $TYPES_LIST
1594 atomics_native
1595 dos_paths
1596 dxva2_lib
1597 libc_msvcrt
1598 libdc1394_1
1599 libdc1394_2
1600 sdl
1601 section_data_rel_ro
1602 threads
1603 vaapi_x11
1604 vdpau_x11
1605 xlib
1606 "
1607
1608 # options emitted with CONFIG_ prefix but not available on the command line
1609 CONFIG_EXTRA="
1610 aandcttables
1611 ac3dsp
1612 audio_frame_queue
1613 audiodsp
1614 blockdsp
1615 bswapdsp
1616 cabac
1617 dvprofile
1618 faandct
1619 faanidct
1620 fdctdsp
1621 flacdsp
1622 fmtconvert
1623 g722dsp
1624 gcrypt
1625 gmp
1626 golomb
1627 gplv3
1628 h263dsp
1629 h264chroma
1630 h264dsp
1631 h264pred
1632 h264qpel
1633 hpeldsp
1634 huffman
1635 huffyuvdsp
1636 huffyuvencdsp
1637 idctdsp
1638 iirfilter
1639 imdct15
1640 intrax8
1641 ividsp
1642 jpegtables
1643 libx262
1644 lgplv3
1645 lpc
1646 lzf
1647 me_cmp
1648 mpeg_er
1649 mpegaudio
1650 mpegaudiodsp
1651 mpegvideo
1652 mpegvideoenc
1653 mss34dsp
1654 pixblockdsp
1655 qpeldsp
1656 qsv
1657 qsvdec
1658 qsvenc
1659 rangecoder
1660 riffdec
1661 riffenc
1662 rtpdec
1663 rtpenc_chain
1664 rv34dsp
1665 sinewin
1666 snappy
1667 startcode
1668 texturedsp
1669 texturedspenc
1670 tpeldsp
1671 videodsp
1672 vp3dsp
1673 vp56dsp
1674 vp8dsp
1675 wma_freqs
1676 wmv2dsp
1677 "
1678
1679 CMDLINE_SELECT="
1680 $ARCH_EXT_LIST
1681 $CONFIG_LIST
1682 $HAVE_LIST_CMDLINE
1683 $THREADS_LIST
1684 asm
1685 cross_compile
1686 debug
1687 extra_warnings
1688 logging
1689 lto
1690 optimizations
1691 rpath
1692 "
1693
1694 PATHS_LIST="
1695 bindir
1696 datadir
1697 docdir
1698 incdir
1699 libdir
1700 mandir
1701 prefix
1702 shlibdir
1703 "
1704
1705 CMDLINE_SET="
1706 $PATHS_LIST
1707 ar
1708 arch
1709 as
1710 build_suffix
1711 cc
1712 cpu
1713 cross_prefix
1714 custom_allocator
1715 dep_cc
1716 env
1717 extra_version
1718 host_cc
1719 host_cflags
1720 host_ld
1721 host_ldflags
1722 host_libs
1723 host_os
1724 ld
1725 logfile
1726 malloc_prefix
1727 nm
1728 optflags
1729 pkg_config
1730 pkg_config_flags
1731 random_seed
1732 samples
1733 sysinclude
1734 sysroot
1735 target_exec
1736 target_os
1737 target_path
1738 target_samples
1739 toolchain
1740 "
1741
1742 CMDLINE_APPEND="
1743 extra_cflags
1744 host_cppflags
1745 "
1746
1747 # code dependency declarations
1748
1749 # architecture extensions
1750
1751 armv5te_deps="arm"
1752 armv6_deps="arm"
1753 armv6t2_deps="arm"
1754 armv8_deps="aarch64"
1755 neon_deps_any="aarch64 arm"
1756 intrinsics_neon_deps="neon"
1757 vfp_deps_any="aarch64 arm"
1758 vfpv3_deps="vfp"
1759
1760 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1761
1762 altivec_deps="ppc"
1763 ppc4xx_deps="ppc"
1764 vsx_deps="altivec"
1765 power8_deps="vsx"
1766
1767 cpunop_deps="i686"
1768 x86_64_select="i686"
1769 x86_64_suggest="fast_cmov"
1770
1771 amd3dnow_deps="mmx"
1772 amd3dnowext_deps="amd3dnow"
1773 i686_deps="x86"
1774 mmx_deps="x86"
1775 mmxext_deps="mmx"
1776 sse_deps="mmxext"
1777 sse2_deps="sse"
1778 sse3_deps="sse2"
1779 ssse3_deps="sse3"
1780 sse4_deps="ssse3"
1781 sse42_deps="sse4"
1782 avx_deps="sse42"
1783 xop_deps="avx"
1784 fma3_deps="avx"
1785 fma4_deps="avx"
1786 avx2_deps="avx"
1787
1788 mmx_external_deps="yasm"
1789 mmx_inline_deps="inline_asm"
1790 mmx_suggest="mmx_external mmx_inline"
1791
1792 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1793 eval dep=\$${ext}_deps
1794 eval ${ext}_external_deps='"${dep}_external"'
1795 eval ${ext}_inline_deps='"${dep}_inline"'
1796 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1797 done
1798
1799 aligned_stack_if_any="aarch64 ppc x86"
1800 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1801 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1802 fast_unaligned_if_any="aarch64 ppc x86"
1803 simd_align_16_if_any="altivec neon sse"
1804
1805 # system capabilities
1806 symver_if_any="symver_asm_label symver_gnu_asm"
1807 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1808
1809 # threading support
1810 atomics_gcc_if="sync_val_compare_and_swap"
1811 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1812 atomics_win32_if="MemoryBarrier"
1813 atomics_native_if_any="$ATOMICS_LIST"
1814 w32threads_deps="atomics_native"
1815 threads_if_any="$THREADS_LIST"
1816
1817 # subsystems
1818 dct_select="rdft"
1819 error_resilience_select="me_cmp"
1820 faandct_deps="faan fdctdsp"
1821 faanidct_deps="faan idctdsp"
1822 intrax8_select="error_resilience"
1823 mdct_select="fft"
1824 rdft_select="fft"
1825 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1826 mpeg_er_select="error_resilience"
1827 mpegaudio_select="mpegaudiodsp"
1828 mpegaudiodsp_select="dct"
1829 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1830 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1831 nvenc_deps_any="dlopen LoadLibrary"
1832 nvenc_extralibs='$ldl'
1833 qsvdec_select="qsv"
1834 qsvenc_select="qsv"
1835
1836 # decoders / encoders
1837 aac_decoder_select="imdct15 mdct sinewin"
1838 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1839 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1840 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1841 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1842 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1843 adpcm_g722_decoder_select="g722dsp"
1844 adpcm_g722_encoder_select="g722dsp"
1845 aic_decoder_select="golomb idctdsp"
1846 alac_encoder_select="lpc"
1847 als_decoder_select="bswapdsp"
1848 amrnb_decoder_select="lsp"
1849 amrwb_decoder_select="lsp"
1850 amv_decoder_select="sp5x_decoder"
1851 ape_decoder_select="bswapdsp"
1852 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1853 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1854 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1855 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1856 atrac1_decoder_select="mdct sinewin"
1857 atrac3_decoder_select="mdct"
1858 atrac3p_decoder_select="mdct sinewin"
1859 bink_decoder_select="blockdsp hpeldsp"
1860 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1861 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1862 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1863 cllc_decoder_select="bswapdsp"
1864 comfortnoise_encoder_select="lpc"
1865 cook_decoder_select="audiodsp mdct sinewin"
1866 cscd_decoder_select="lzo"
1867 cscd_decoder_suggest="zlib"
1868 dca_decoder_select="fmtconvert mdct"
1869 dds_decoder_select="texturedsp"
1870 dnxhd_decoder_select="blockdsp idctdsp"
1871 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1872 dvvideo_decoder_select="dvprofile idctdsp"
1873 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1874 dxa_decoder_deps="zlib"
1875 dxv_decoder_select="lzf texturedsp"
1876 eac3_decoder_select="ac3_decoder"
1877 eac3_encoder_select="ac3_encoder"
1878 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1879 eatgq_decoder_select="aandcttables idctdsp"
1880 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1881 exr_decoder_deps="zlib"
1882 ffv1_decoder_select="golomb rangecoder"
1883 ffv1_encoder_select="rangecoder"
1884 ffvhuff_decoder_select="huffyuv_decoder"
1885 ffvhuff_encoder_select="huffyuv_encoder"
1886 fic_decoder_select="golomb"
1887 flac_decoder_select="flacdsp golomb"
1888 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1889 flashsv_decoder_deps="zlib"
1890 flashsv_encoder_deps="zlib"
1891 flashsv2_decoder_deps="zlib"
1892 flv_decoder_select="h263_decoder"
1893 flv_encoder_select="h263_encoder"
1894 fourxm_decoder_select="blockdsp bswapdsp"
1895 fraps_decoder_select="bswapdsp huffman"
1896 g2m_decoder_deps="zlib"
1897 g2m_decoder_select="blockdsp idctdsp jpegtables"
1898 h261_decoder_select="mpeg_er mpegvideo"
1899 h261_encoder_select="aandcttables mpegvideoenc"
1900 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1901 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1902 h263i_decoder_select="h263_decoder"
1903 h263p_encoder_select="h263_encoder"
1904 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1905 h264_decoder_suggest="error_resilience"
1906 h264_nvenc_encoder_deps="nvenc"
1907 h264_qsv_decoder_deps="libmfx"
1908 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1909 h264_qsv_encoder_deps="libmfx"
1910 h264_qsv_encoder_select="qsvenc"
1911 hap_decoder_select="snappy texturedsp"
1912 hap_encoder_deps="libsnappy"
1913 hap_encoder_select="texturedspenc"
1914 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1915 hevc_nvenc_encoder_deps="nvenc"
1916 hevc_qsv_encoder_deps="libmfx"
1917 hevc_qsv_decoder_deps="libmfx"
1918 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1919 hevc_qsv_encoder_select="qsvenc"
1920 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1921 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1922 iac_decoder_select="imc_decoder"
1923 imc_decoder_select="bswapdsp fft mdct sinewin"
1924 indeo3_decoder_select="hpeldsp"
1925 indeo4_decoder_select="ividsp"
1926 indeo5_decoder_select="ividsp"
1927 interplay_video_decoder_select="hpeldsp"
1928 jpegls_decoder_select="golomb mjpeg_decoder"
1929 jpegls_encoder_select="golomb"
1930 jv_decoder_select="blockdsp"
1931 lagarith_decoder_select="huffyuvdsp"
1932 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1933 loco_decoder_select="golomb"
1934 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1935 metasound_decoder_select="lsp mdct sinewin"
1936 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1937 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1938 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1939 mjpegb_decoder_select="mjpeg_decoder"
1940 mlp_decoder_select="mlp_parser"
1941 motionpixels_decoder_select="bswapdsp"
1942 mp1_decoder_select="mpegaudio"
1943 mp1float_decoder_select="mpegaudio"
1944 mp2_decoder_select="mpegaudio"
1945 mp2float_decoder_select="mpegaudio"
1946 mp3_decoder_select="mpegaudio"
1947 mp3adu_decoder_select="mpegaudio"
1948 mp3adufloat_decoder_select="mpegaudio"
1949 mp3float_decoder_select="mpegaudio"
1950 mp3on4_decoder_select="mpegaudio"
1951 mp3on4float_decoder_select="mpegaudio"
1952 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1953 mpc8_decoder_select="mpegaudiodsp"
1954 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1955 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1956 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1957 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1958 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1959 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1960 mpeg2_qsv_decoder_deps="libmfx"
1961 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
1962 mpeg2_qsv_encoder_deps="libmfx"
1963 mpeg2_qsv_encoder_select="qsvenc"
1964 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1965 mpeg4_encoder_select="h263_encoder"
1966 msa1_decoder_select="mss34dsp"
1967 msmpeg4v1_decoder_select="h263_decoder"
1968 msmpeg4v2_decoder_select="h263_decoder"
1969 msmpeg4v2_encoder_select="h263_encoder"
1970 msmpeg4v3_decoder_select="h263_decoder"
1971 msmpeg4v3_encoder_select="h263_encoder"
1972 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1973 mts2_decoder_select="mss34dsp"
1974 mxpeg_decoder_select="mjpeg_decoder"
1975 nellymoser_decoder_select="mdct sinewin"
1976 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1977 nuv_decoder_select="idctdsp lzo"
1978 on2avc_decoder_select="mdct"
1979 opus_decoder_deps="avresample"
1980 opus_decoder_select="imdct15"
1981 png_decoder_deps="zlib"
1982 png_encoder_deps="zlib"
1983 png_encoder_select="huffyuvencdsp"
1984 prores_decoder_select="idctdsp"
1985 prores_encoder_select="fdctdsp"
1986 qcelp_decoder_select="lsp"
1987 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1988 ra_144_encoder_select="audio_frame_queue lpc"
1989 ralf_decoder_select="golomb"
1990 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1991 rv10_encoder_select="h263_encoder"
1992 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1993 rv20_encoder_select="h263_encoder"
1994 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1995 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1996 screenpresso_decoder_deps="zlib"
1997 shorten_decoder_select="golomb"
1998 sipr_decoder_select="lsp"
1999 sp5x_decoder_select="mjpeg_decoder"
2000 svq1_decoder_select="hpeldsp"
2001 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2002 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2003 svq3_decoder_suggest="zlib"
2004 tak_decoder_select="audiodsp"
2005 tdsc_decoder_deps="zlib"
2006 tdsc_decoder_select="mjpeg_decoder"
2007 theora_decoder_select="vp3_decoder"
2008 thp_decoder_select="mjpeg_decoder"
2009 tiff_decoder_suggest="zlib"
2010 tiff_encoder_suggest="zlib"
2011 truehd_decoder_select="mlp_decoder"
2012 truemotion2_decoder_select="bswapdsp"
2013 truespeech_decoder_select="bswapdsp"
2014 tscc_decoder_deps="zlib"
2015 txd_decoder_select="texturedsp"
2016 twinvq_decoder_select="mdct lsp sinewin"
2017 utvideo_decoder_select="bswapdsp"
2018 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2019 vble_decoder_select="huffyuvdsp"
2020 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2021 vc1image_decoder_select="vc1_decoder"
2022 vorbis_decoder_select="mdct"
2023 vorbis_encoder_select="mdct"
2024 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2025 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2026 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2027 vp6a_decoder_select="vp6_decoder"
2028 vp6f_decoder_select="vp6_decoder"
2029 vp7_decoder_select="h264pred videodsp vp8dsp"
2030 vp8_decoder_select="h264pred videodsp vp8dsp"
2031 vp9_decoder_select="videodsp"
2032 webp_decoder_select="vp8_decoder"
2033 wmapro_decoder_select="mdct sinewin wma_freqs"
2034 wmav1_decoder_select="mdct sinewin wma_freqs"
2035 wmav1_encoder_select="mdct sinewin wma_freqs"
2036 wmav2_decoder_select="mdct sinewin wma_freqs"
2037 wmav2_encoder_select="mdct sinewin wma_freqs"
2038 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2039 wmv1_decoder_select="h263_decoder"
2040 wmv1_encoder_select="h263_encoder"
2041 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2042 wmv2_encoder_select="h263_encoder wmv2dsp"
2043 wmv3_decoder_select="vc1_decoder"
2044 wmv3image_decoder_select="wmv3_decoder"
2045 zerocodec_decoder_deps="zlib"
2046 zlib_decoder_deps="zlib"
2047 zlib_encoder_deps="zlib"
2048 zmbv_decoder_deps="zlib"
2049 zmbv_encoder_deps="zlib"
2050
2051 # hardware accelerators
2052 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2053 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2054 vaapi_deps="va_va_h"
2055 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2056 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2057 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2058
2059 h263_vaapi_hwaccel_deps="vaapi"
2060 h263_vaapi_hwaccel_select="h263_decoder"
2061 h263_vdpau_hwaccel_deps="vdpau"
2062 h263_vdpau_hwaccel_select="h263_decoder"
2063 h264_d3d11va_hwaccel_deps="d3d11va"
2064 h264_d3d11va_hwaccel_select="h264_decoder"
2065 h264_dxva2_hwaccel_deps="dxva2"
2066 h264_dxva2_hwaccel_select="h264_decoder"
2067 h264_mmal_decoder_deps="mmal"
2068 h264_mmal_hwaccel_deps="mmal"
2069 h264_mmal_decoder_select="h264_decoder"
2070 h264_mmal_encoder_deps="mmal"
2071 h264_qsv_hwaccel_deps="libmfx"
2072 h264_vaapi_hwaccel_deps="vaapi"
2073 h264_vaapi_hwaccel_select="h264_decoder"
2074 h264_vda_hwaccel_deps="vda"
2075 h264_vda_hwaccel_select="h264_decoder"
2076 h264_vda_old_hwaccel_deps="vda"
2077 h264_vda_old_hwaccel_select="h264_decoder"
2078 h264_vdpau_hwaccel_deps="vdpau"
2079 h264_vdpau_hwaccel_select="h264_decoder"
2080 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2081 hevc_d3d11va_hwaccel_select="hevc_decoder"
2082 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2083 hevc_dxva2_hwaccel_select="hevc_decoder"
2084 hevc_qsv_hwaccel_deps="libmfx"
2085 mpeg1_vdpau_hwaccel_deps="vdpau"
2086 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2087 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2088 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2089 mpeg2_dxva2_hwaccel_deps="dxva2"
2090 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2091 mpeg2_qsv_hwaccel_deps="libmfx"
2092 mpeg2_vaapi_hwaccel_deps="vaapi"
2093 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2094 mpeg2_vdpau_hwaccel_deps="vdpau"
2095 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2096 mpeg4_vaapi_hwaccel_deps="vaapi"
2097 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2098 mpeg4_vdpau_hwaccel_deps="vdpau"
2099 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2100 vc1_d3d11va_hwaccel_deps="d3d11va"
2101 vc1_d3d11va_hwaccel_select="vc1_decoder"
2102 vc1_dxva2_hwaccel_deps="dxva2"
2103 vc1_dxva2_hwaccel_select="vc1_decoder"
2104 vc1_vaapi_hwaccel_deps="vaapi"
2105 vc1_vaapi_hwaccel_select="vc1_decoder"
2106 vc1_vdpau_hwaccel_deps="vdpau"
2107 vc1_vdpau_hwaccel_select="vc1_decoder"
2108 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2109 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2110 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2111 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2112
2113 # parsers
2114 h264_parser_select="h264_decoder"
2115 hevc_parser_select="golomb"
2116 mpegvideo_parser_select="mpegvideo"
2117 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2118 vc1_parser_select="mpegvideo startcode vc1_decoder"
2119
2120 # bitstream_filters
2121 mjpeg2jpeg_bsf_select="jpegtables"
2122
2123 # external libraries
2124 libdcadec_decoder_deps="libdcadec"
2125 libfaac_encoder_deps="libfaac"
2126 libfaac_encoder_select="audio_frame_queue"
2127 libfdk_aac_decoder_deps="libfdk_aac"
2128 libfdk_aac_encoder_deps="libfdk_aac"
2129 libfdk_aac_encoder_select="audio_frame_queue"
2130 libgsm_decoder_deps="libgsm"
2131 libgsm_encoder_deps="libgsm"
2132 libgsm_ms_decoder_deps="libgsm"
2133 libgsm_ms_encoder_deps="libgsm"
2134 libilbc_decoder_deps="libilbc"
2135 libilbc_encoder_deps="libilbc"
2136 libmp3lame_encoder_deps="libmp3lame"
2137 libmp3lame_encoder_select="audio_frame_queue"
2138 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2139 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2140 libopencore_amrnb_encoder_select="audio_frame_queue"
2141 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2142 libopenh264_encoder_deps="libopenh264"
2143 libopenjpeg_decoder_deps="libopenjpeg"
2144 libopenjpeg_encoder_deps="libopenjpeg"
2145 libopus_decoder_deps="libopus"
2146 libopus_encoder_deps="libopus"
2147 libopus_encoder_select="audio_frame_queue"
2148 libschroedinger_decoder_deps="libschroedinger"
2149 libschroedinger_encoder_deps="libschroedinger"
2150 libspeex_decoder_deps="libspeex"
2151 libspeex_encoder_deps="libspeex"
2152 libspeex_encoder_select="audio_frame_queue"
2153 libtheora_encoder_deps="libtheora"
2154 libtwolame_encoder_deps="libtwolame"
2155 libvo_aacenc_encoder_deps="libvo_aacenc"
2156 libvo_aacenc_encoder_select="audio_frame_queue"
2157 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2158 libvorbis_encoder_deps="libvorbis"
2159 libvorbis_encoder_select="audio_frame_queue"
2160 libvpx_vp8_decoder_deps="libvpx"
2161 libvpx_vp8_encoder_deps="libvpx"
2162 libvpx_vp9_decoder_deps="libvpx"
2163 libvpx_vp9_encoder_deps="libvpx"
2164 libwavpack_encoder_deps="libwavpack"
2165 libwebp_encoder_deps="libwebp"
2166 libx262_encoder_deps="libx262"
2167 libx264_encoder_deps="libx264"
2168 libx265_encoder_deps="libx265"
2169 libxavs_encoder_deps="libxavs"
2170 libxvid_encoder_deps="libxvid"
2171
2172 # demuxers / muxers
2173 ac3_demuxer_select="ac3_parser"
2174 asf_demuxer_select="riffdec"
2175 asf_muxer_select="riffenc"
2176 asf_stream_muxer_select="asf_muxer"
2177 avi_demuxer_select="riffdec"
2178 avi_muxer_select="riffenc"
2179 avisynth_demuxer_deps="avisynth"
2180 avisynth_demuxer_select="riffdec"
2181 caf_demuxer_select="riffdec"
2182 dash_muxer_select="mp4_muxer"
2183 dirac_demuxer_select="dirac_parser"
2184 dv_demuxer_select="dvprofile"
2185 dv_muxer_select="dvprofile"
2186 dxa_demuxer_select="riffdec"
2187 eac3_demuxer_select="ac3_parser"
2188 f4v_muxer_select="mov_muxer"
2189 flac_demuxer_select="flac_parser"
2190 hds_muxer_select="flv_muxer"
2191 hls_muxer_select="mpegts_muxer"
2192 ipod_muxer_select="mov_muxer"
2193 ismv_muxer_select="mov_muxer"
2194 matroska_audio_muxer_select="matroska_muxer"
2195 matroska_demuxer_select="riffdec"
2196 matroska_demuxer_suggest="bzlib lzo zlib"
2197 matroska_muxer_select="riffenc"
2198 mmf_muxer_select="riffenc"
2199 mov_demuxer_select="riffdec"
2200 mov_demuxer_suggest="zlib"
2201 mov_muxer_select="riffenc rtpenc_chain"
2202 mp3_demuxer_select="mpegaudio_parser"
2203 mp4_muxer_select="mov_muxer"
2204 mpegts_muxer_select="adts_muxer latm_muxer"
2205 mpegtsraw_demuxer_select="mpegts_demuxer"
2206 mxf_d10_muxer_select="mxf_muxer"
2207 nut_muxer_select="riffenc"
2208 nuv_demuxer_select="riffdec"
2209 oga_muxer_select="ogg_muxer"
2210 ogg_demuxer_select="golomb"
2211 opus_muxer_select="ogg_muxer"
2212 psp_muxer_select="mov_muxer"
2213 rtp_demuxer_select="sdp_demuxer"
2214 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2215 rtsp_demuxer_select="http_protocol rtpdec"
2216 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2217 sap_demuxer_select="sdp_demuxer"
2218 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2219 sdp_demuxer_select="rtpdec"
2220 smoothstreaming_muxer_select="ismv_muxer"
2221 spdif_muxer_select="aac_parser"
2222 spx_muxer_select="ogg_muxer"
2223 tak_demuxer_select="tak_parser"
2224 tg2_muxer_select="mov_muxer"
2225 tgp_muxer_select="mov_muxer"
2226 w64_demuxer_select="wav_demuxer"
2227 wav_demuxer_select="riffdec"
2228 wav_muxer_select="riffenc"
2229 webm_muxer_select="riffenc"
2230 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2231 wtv_demuxer_select="riffdec"
2232 xmv_demuxer_select="riffdec"
2233 xwma_demuxer_select="riffdec"
2234
2235 # indevs / outdevs
2236 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2237 alsa_outdev_deps="alsa_asoundlib_h"
2238 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2239 dv1394_indev_deps="dv1394"
2240 dv1394_indev_select="dv_demuxer"
2241 fbdev_indev_deps="linux_fb_h"
2242 jack_indev_deps="jack_jack_h pthreads"
2243 libcdio_indev_deps="libcdio"
2244 libdc1394_indev_deps="libdc1394"
2245 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2246 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2247 pulse_indev_deps="libpulse"
2248 sndio_indev_deps="sndio_h"
2249 sndio_outdev_deps="sndio_h"
2250 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2251 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2252 vfwcap_indev_extralibs="-lavicap32"
2253 x11grab_indev_deps="x11grab"
2254 x11grab_xcb_indev_deps="libxcb"
2255
2256 # protocols
2257 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2258 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2259 ffrtmpcrypt_protocol_select="tcp_protocol"
2260 ffrtmphttp_protocol_deps="!librtmp_protocol"
2261 ffrtmphttp_protocol_select="http_protocol"
2262 gopher_protocol_select="network"
2263 http_protocol_select="tcp_protocol"
2264 httpproxy_protocol_select="tcp_protocol"
2265 https_protocol_select="tls_protocol"
2266 icecast_protocol_select="http_protocol"
2267 librtmp_protocol_deps="librtmp"
2268 librtmpe_protocol_deps="librtmp"
2269 librtmps_protocol_deps="librtmp"
2270 librtmpt_protocol_deps="librtmp"
2271 librtmpte_protocol_deps="librtmp"
2272 mmsh_protocol_select="http_protocol"
2273 mmst_protocol_select="network"
2274 rtmp_protocol_deps="!librtmp_protocol"
2275 rtmp_protocol_select="tcp_protocol"
2276 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2277 rtmps_protocol_deps="!librtmp_protocol"
2278 rtmps_protocol_select="tls_protocol"
2279 rtmpt_protocol_select="ffrtmphttp_protocol"
2280 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2281 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2282 rtp_protocol_select="udp_protocol"
2283 sctp_protocol_deps="struct_sctp_event_subscribe"
2284 sctp_protocol_select="network"
2285 srtp_protocol_select="rtp_protocol"
2286 tcp_protocol_select="network"
2287 tls_gnutls_protocol_deps="gnutls"
2288 tls_gnutls_protocol_select="tcp_protocol"
2289 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2290 tls_openssl_protocol_select="tcp_protocol"
2291 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2292 udp_protocol_select="network"
2293 unix_protocol_deps="sys_un_h"
2294 unix_protocol_select="network"
2295
2296 # filters
2297 blackframe_filter_deps="gpl"
2298 boxblur_filter_deps="gpl"
2299 bs2b_filter_deps="libbs2b"
2300 cropdetect_filter_deps="gpl"
2301 delogo_filter_deps="gpl"
2302 drawtext_filter_deps="libfreetype"
2303 frei0r_filter_deps="frei0r dlopen"
2304 frei0r_filter_extralibs='$ldl'
2305 frei0r_src_filter_deps="frei0r dlopen"
2306 frei0r_src_filter_extralibs='$ldl'
2307 hqdn3d_filter_deps="gpl"
2308 interlace_filter_deps="gpl"
2309 ocv_filter_deps="libopencv"
2310 resample_filter_deps="avresample"
2311 scale_filter_deps="swscale"
2312
2313 # examples
2314 avcodec_example_deps="avcodec avutil"
2315 filter_audio_example_deps="avfilter avutil"
2316 metadata_example_deps="avformat avutil"
2317 output_example_deps="avcodec avformat avutil swscale"
2318 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2319 transcode_aac_example_deps="avcodec avformat avresample"
2320
2321 # libraries, in linking order
2322 avcodec_deps="avutil"
2323 avdevice_deps="avformat avcodec avutil"
2324 avfilter_deps="avutil"
2325 avformat_deps="avcodec avutil"
2326 avresample_deps="avutil"
2327 swscale_deps="avutil"
2328
2329 # programs
2330 avconv_deps="avcodec avfilter avformat avresample swscale"
2331 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2332 fps_filter null_filter resample_filter scale_filter
2333 setpts_filter trim_filter"
2334 avplay_deps="avcodec avformat avresample swscale sdl"
2335 avplay_libs='$sdl_libs'
2336 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2337 avprobe_deps="avcodec avformat"
2338
2339 # documentation
2340 pod2man_deps="doc"
2341 texi2html_deps="doc"
2342
2343 # default parameters
2344
2345 logfile="config.log"
2346
2347 # installation paths
2348 prefix_default="/usr/local"
2349 bindir_default='${prefix}/bin'
2350 datadir_default='${prefix}/share/avconv'
2351 docdir_default='${prefix}/share/doc/libav'
2352 incdir_default='${prefix}/include'
2353 libdir_default='${prefix}/lib'
2354 mandir_default='${prefix}/share/man'
2355 shlibdir_default="$libdir_default"
2356
2357 # toolchain
2358 ar_default="ar"
2359 cc_default="gcc"
2360 host_cc_default="gcc"
2361 cp_f="cp -f"
2362 ln_s="ln -s -f"
2363 nm_default="nm -g"
2364 objformat="elf"
2365 pkg_config_default=pkg-config
2366 ranlib="ranlib"
2367 strip="strip"
2368 yasmexe="yasm"
2369
2370 # machine
2371 arch_default=$(uname -m)
2372 cpu="generic"
2373 intrinsics="none"
2374
2375 # OS
2376 target_os_default=$(tolower $(uname -s))
2377 host_os=$target_os_default
2378
2379 # configurable options
2380 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2381
2382 enable asm
2383 enable debug
2384 enable doc
2385 enable faan faandct faanidct
2386 enable optimizations
2387 enable safe_bitstream_reader
2388 enable static
2389 enable swscale_alpha
2390 enable valgrind_backtrace
2391
2392 # By default, enable only those hwaccels that have no external dependencies.
2393 enable d3d11va dxva2 vda vdpau
2394
2395 # build settings
2396 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2397 LIBPREF="lib"
2398 LIBSUF=".a"
2399 FULLNAME='$(NAME)$(BUILDSUF)'
2400 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2401 SLIBPREF="lib"
2402 SLIBSUF=".so"
2403 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2404 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2405 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2406 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2407 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2408 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2409
2410 asflags_filter=echo
2411 cflags_filter=echo
2412 ldflags_filter=echo
2413
2414 AS_C='-c'
2415 AS_O='-o $@'
2416 CC_C='-c'
2417 CC_E='-E -o $@'
2418 CC_O='-o $@'
2419 LD_O='-o $@'
2420 LD_LIB='-l%'
2421 LD_PATH='-L'
2422 HOSTCC_C='-c'
2423 HOSTCC_E='-E -o $@'
2424 HOSTCC_O='-o $@'
2425 HOSTLD_O='-o $@'
2426
2427 host_libs='-lm'
2428 host_cflags_filter=echo
2429 host_ldflags_filter=echo
2430
2431 target_path='$(CURDIR)'
2432
2433 # since the object filename is not given with the -MM flag, the compiler
2434 # is only able to print the basename, and we must add the path ourselves
2435 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2436 DEPFLAGS='-MM'
2437
2438 # find source path
2439 if test -f configure; then
2440 source_path=.
2441 else
2442 source_path=$(cd $(dirname "$0"); pwd)
2443 echo "$source_path" | grep -q '[[:blank:]]' &&
2444 die "Out of tree builds are impossible with whitespace in source path."
2445 test -e "$source_path/config.h" &&
2446 die "Out of tree builds are impossible with config.h in source dir."
2447 fi
2448
2449 for v in "$@"; do
2450 r=${v#*=}
2451 l=${v%"$r"}
2452 r=$(sh_quote "$r")
2453 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2454 done
2455
2456 find_things(){
2457 thing=$1
2458 pattern=$2
2459 file=$source_path/$3
2460 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2461 }
2462
2463 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2464 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2465 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2466 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2467 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2468 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2469 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2470 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2471 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2472 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2473 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2474
2475 ALL_COMPONENTS="
2476 $BSF_LIST
2477 $DECODER_LIST
2478 $DEMUXER_LIST
2479 $ENCODER_LIST
2480 $FILTER_LIST
2481 $HWACCEL_LIST
2482 $INDEV_LIST
2483 $MUXER_LIST
2484 $OUTDEV_LIST
2485 $PARSER_LIST
2486 $PROTOCOL_LIST
2487 "
2488
2489 for n in $COMPONENT_LIST; do
2490 v=$(toupper ${n%s})_LIST
2491 eval enable \$$v
2492 eval ${n}_if_any="\$$v"
2493 done
2494
2495 enable $ARCH_EXT_LIST
2496
2497 die_unknown(){
2498 echo "Unknown option \"$1\"."
2499 echo "See $0 --help for available options."
2500 exit 1
2501 }
2502
2503 print_3_columns() {
2504 cat | tr ' ' '\n' | sort | pr -r -3 -t
2505 }
2506
2507 show_list() {
2508 suffix=_$1
2509 shift
2510 echo $* | sed s/$suffix//g | print_3_columns
2511 exit 0
2512 }
2513
2514 rand_list(){
2515 IFS=', '
2516 set -- $*
2517 unset IFS
2518 for thing; do
2519 comp=${thing%:*}
2520 prob=${thing#$comp}
2521 prob=${prob#:}
2522 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2523 echo "prob ${prob:-0.5}"
2524 printf '%s\n' $comp
2525 done
2526 }
2527
2528 do_random(){
2529 action=$1
2530 shift
2531 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2532 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2533 }
2534
2535 for opt do
2536 optval="${opt#*=}"
2537 case "$opt" in
2538 --extra-ldflags=*)
2539 add_ldflags $optval
2540 ;;
2541 --extra-ldexeflags=*)
2542 add_ldexeflags $optval
2543 ;;
2544 --extra-libs=*)
2545 add_extralibs $optval
2546 ;;
2547 --disable-devices)
2548 disable $INDEV_LIST $OUTDEV_LIST
2549 ;;
2550 --enable-debug=*)
2551 debuglevel="$optval"
2552 ;;
2553 --disable-programs)
2554 disable $PROGRAM_LIST
2555 ;;
2556 --disable-everything)
2557 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2558 ;;
2559 --disable-all)
2560 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2561 disable $LIBRARY_LIST $PROGRAM_LIST doc
2562 ;;
2563 --enable-random|--disable-random)
2564 action=${opt%%-random}
2565 do_random ${action#--} $COMPONENT_LIST
2566 ;;
2567 --enable-random=*|--disable-random=*)
2568 action=${opt%%-random=*}
2569 do_random ${action#--} $optval
2570 ;;
2571 --enable-*=*|--disable-*=*)
2572 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2573 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2574 eval list=\$$(toupper $thing)_LIST
2575 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2576 $action $(filter "$name" $list)
2577 ;;
2578 --enable-avserver|--disable-avserver*)
2579 warn "avserver has been removed, the ${opt} option is only"\
2580 "provided for compatibility and will be removed in the future"
2581 ;;
2582 --enable-?*|--disable-?*)
2583 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2584 if is_in $option $COMPONENT_LIST; then
2585 test $action = disable && action=unset
2586 eval $action \$$(toupper ${option%s})_LIST
2587 elif is_in $option $CMDLINE_SELECT; then
2588 $action $option
2589 else
2590 die_unknown $opt
2591 fi
2592 ;;
2593 --list-*)
2594 NAME="${opt#--list-}"
2595 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2596 NAME=${NAME%s}
2597 eval show_list $NAME \$$(toupper $NAME)_LIST
2598 ;;
2599 --help|-h) show_help
2600 ;;
2601 *)
2602 optname="${opt%%=*}"
2603 optname="${optname#--}"
2604 optname=$(echo "$optname" | sed 's/-/_/g')
2605 if is_in $optname $CMDLINE_SET; then
2606 eval $optname='$optval'
2607 elif is_in $optname $CMDLINE_APPEND; then
2608 append $optname "$optval"
2609 else
2610 die_unknown $opt
2611 fi
2612 ;;
2613 esac
2614 done
2615
2616 for e in $env; do
2617 eval "export $e"
2618 done
2619
2620 disabled logging && logfile=/dev/null
2621
2622 # Disable all the library-specific components if the library itself
2623 # is disabled, see AVCODEC_LIST and following _LIST variables.
2624
2625 disable_components(){
2626 disabled ${1} && disable $(
2627 eval components="\$$(toupper ${1})_COMPONENTS"
2628 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2629 )
2630 }
2631
2632 map 'disable_components $v' $LIBRARY_LIST
2633
2634 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2635 set >> $logfile
2636
2637 case "$toolchain" in
2638 clang-asan)
2639 cc_default="clang"
2640 add_cflags -fsanitize=address
2641 add_ldflags -fsanitize=address
2642 ;;
2643 clang-tsan)
2644 cc_default="clang"
2645 add_cflags -fsanitize=thread -pie
2646 add_ldflags -fsanitize=thread -pie
2647 ;;
2648 clang-usan)
2649 cc_default="clang"
2650 add_cflags -fsanitize=undefined -O1
2651 add_ldflags -fsanitize=undefined
2652 ;;
2653 gcc-asan)
2654 cc_default="gcc"
2655 add_cflags -fsanitize=address
2656 add_ldflags -fsanitize=address
2657 ;;
2658 gcc-tsan)
2659 cc_default="gcc"
2660 add_cflags -fsanitize=thread -pie -fPIC
2661 add_ldflags -fsanitize=thread -pie -fPIC
2662 ;;
2663 gcc-usan)
2664 cc_default="gcc"
2665 add_cflags -fsanitize=undefined
2666 add_ldflags -fsanitize=undefined
2667 ;;
2668 valgrind-massif)
2669 target_exec_default="valgrind"
2670 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2671 ;;
2672 valgrind-memcheck)
2673 target_exec_default="valgrind"
2674 target_exec_args="--track-origins=yes --leak-check=full"
2675 ;;
2676 msvc)
2677 # Check whether the current MSVC version needs the C99 converter.
2678 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2679 # support enough of C99 to build libav. Default to the new
2680 # behaviour if the regexp was unable to match anything, since this
2681 # successfully parses the version number of existing supported
2682 # versions that require the converter (MSVC 2010 and 2012).
2683 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2684 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2685 cc_default="cl"
2686 else
2687 cc_default="c99wrap cl"
2688 fi
2689 ld_default="$source_path/compat/windows/mslink"
2690 nm_default="dumpbin -symbols"
2691 ar_default="lib"
2692 case "$arch" in
2693 arm*)
2694 as_default="armasm"
2695 ;;
2696 esac
2697 target_os_default="win32"
2698 # Use a relative path for TMPDIR. This makes sure all the
2699 # ffconf temp files are written with a relative path, avoiding
2700 # issues with msys/win32 path conversion for MSVC parameters
2701 # such as -Fo<file> or -out:<file>.
2702 TMPDIR=.
2703 ;;
2704 icl)
2705 cc_default="icl"
2706 ld_default="xilink"
2707 nm_default="dumpbin -symbols"
2708 ar_default="xilib"
2709 target_os_default="win32"
2710 TMPDIR=.
2711 ;;
2712 gcov)
2713 add_cflags -fprofile-arcs -ftest-coverage
2714 add_ldflags -fprofile-arcs -ftest-coverage
2715 ;;
2716 hardened)
2717 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2718 add_cflags -fno-strict-overflow -fstack-protector-all
2719 add_ldflags -Wl,-z,relro -Wl,-z,now
2720 ;;
2721 ?*)
2722 die "Unknown toolchain $toolchain"
2723 ;;
2724 esac
2725
2726 test -n "$cross_prefix" && enable cross_compile
2727
2728 if enabled cross_compile; then
2729 test -n "$arch" && test -n "$target_os" ||
2730 die "Must specify target arch and OS when cross-compiling"
2731 fi
2732
2733 ar_default="${cross_prefix}${ar_default}"
2734 cc_default="${cross_prefix}${cc_default}"
2735 nm_default="${cross_prefix}${nm_default}"
2736 pkg_config_default="${cross_prefix}${pkg_config_default}"
2737 ranlib="${cross_prefix}${ranlib}"
2738 strip="${cross_prefix}${strip}"
2739
2740 sysinclude_default="${sysroot}/usr/include"
2741
2742 set_default arch cc pkg_config sysinclude target_exec target_os
2743 enabled cross_compile || host_cc_default=$cc
2744 set_default host_cc
2745
2746 if ! $pkg_config --version >/dev/null 2>&1; then
2747 warn "$pkg_config not found, library detection may fail."
2748 pkg_config=false
2749 fi
2750
2751 exesuf() {
2752 case $1 in
2753 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2754 esac
2755 }
2756
2757 EXESUF=$(exesuf $target_os)
2758 HOSTEXESUF=$(exesuf $host_os)
2759
2760 # set temporary file name
2761 : ${TMPDIR:=$TEMPDIR}
2762 : ${TMPDIR:=$TMP}
2763 : ${TMPDIR:=/tmp}
2764
2765 if ! check_cmd mktemp -u XXXXXX; then
2766 # simple replacement for missing mktemp
2767 # NOT SAFE FOR GENERAL USE
2768 mktemp(){
2769 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2770 }
2771 fi
2772
2773 tmpfile(){
2774 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2775 (set -C; exec > $tmp) 2>/dev/null ||
2776 die "Unable to create temporary file in $TMPDIR."
2777 append TMPFILES $tmp
2778 eval $1=$tmp
2779 }
2780
2781 trap 'rm -f -- $TMPFILES' EXIT
2782
2783 tmpfile TMPASM .asm
2784 tmpfile TMPC .c
2785 tmpfile TMPE $EXESUF
2786 tmpfile TMPH .h
2787 tmpfile TMPO .o
2788 tmpfile TMPS .S
2789 tmpfile TMPSH .sh
2790 tmpfile TMPV .ver
2791
2792 unset -f mktemp
2793
2794 chmod +x $TMPE
2795
2796 # make sure we can execute files in $TMPDIR
2797 cat > $TMPSH 2>> $logfile <<EOF
2798 #! /bin/sh
2799 EOF
2800 chmod +x $TMPSH >> $logfile 2>&1
2801 if ! $TMPSH >> $logfile 2>&1; then
2802 cat <<EOF
2803 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2804 variable to another directory and make sure that it is not mounted noexec.
2805 EOF
2806 die "Sanity test failed."
2807 fi
2808
2809 armasm_flags(){
2810 for flag; do
2811 case $flag in
2812 # Filter out MSVC cl.exe options from cflags that shouldn't
2813 # be passed to gas-preprocessor
2814 -M[TD]*) ;;
2815 *) echo $flag ;;
2816 esac
2817 done
2818 }
2819
2820 ccc_flags(){
2821 for flag; do
2822 case $flag in
2823 -std=c99) echo -c99 ;;
2824 -mcpu=*) echo -arch ${flag#*=} ;;
2825 -mieee) echo -ieee ;;
2826 -O*|-fast) echo $flag ;;
2827 -fno-math-errno) echo -assume nomath_errno ;;
2828 -g) echo -g3 ;;
2829 -Wall) echo -msg_enable level2 ;;
2830 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2831 -Wl,*) echo $flag ;;
2832 -f*|-W*) ;;
2833 *) echo $flag ;;
2834 esac
2835 done
2836 }
2837
2838 cparser_flags(){
2839 for flag; do
2840 case $flag in
2841 -Wno-switch) echo -Wno-switch-enum ;;
2842 -Wno-format-zero-length) ;;
2843 -Wdisabled-optimization) ;;
2844 -Wno-pointer-sign) echo -Wno-other ;;
2845 *) echo $flag ;;
2846 esac
2847 done
2848 }
2849
2850 msvc_common_flags(){
2851 for flag; do
2852 case $flag in
2853 # In addition to specifying certain flags under the compiler
2854 # specific filters, they must be specified here as well or else the
2855 # generic catch all at the bottom will print the original flag.
2856 -Wall) ;;
2857 -std=c99) ;;
2858 # Common flags
2859 -fomit-frame-pointer) ;;
2860 -g) echo -Z7 ;;
2861 -fno-math-errno) ;;
2862 -fno-common) ;;
2863 -fno-signed-zeros) ;;
2864 -fPIC) ;;
2865 -mthumb) ;;
2866 -march=*) ;;
2867 -lz) echo zlib.lib ;;
2868 -lavifil32) echo vfw32.lib ;;
2869 -lavicap32) echo vfw32.lib user32.lib ;;
2870 -l*) echo ${flag#-l}.lib ;;
2871 -L*) echo -libpath:${flag#-L} ;;
2872 *) echo $flag ;;
2873 esac
2874 done
2875 }
2876
2877 msvc_flags(){
2878 msvc_common_flags "$@"
2879 for flag; do
2880 case $flag in
2881 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2882 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2883 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2884 -wd4273 -wd4554 -wd4701 ;;
2885 esac
2886 done
2887 }
2888
2889 icl_flags(){
2890 msvc_common_flags "$@"
2891 for flag; do
2892 case $flag in
2893 # Despite what Intel's documentation says -Wall, which is supported
2894 # on Windows, does enable remarks so disable them here.
2895 -Wall) echo $flag -Qdiag-disable:remark ;;
2896 -std=c99) echo -Qstd=c99 ;;
2897 esac
2898 done
2899 }
2900
2901 pgi_flags(){
2902 for flag; do
2903 case $flag in
2904 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2905 -fomit-frame-pointer) echo -Mnoframe ;;
2906 -g) echo -gopt ;;
2907 *) echo $flag ;;
2908 esac
2909 done
2910 }
2911
2912 suncc_flags(){
2913 for flag; do
2914 case $flag in
2915 -march=*|-mcpu=*)
2916 case "${flag#*=}" in
2917 native) echo -xtarget=native ;;
2918 v9|niagara) echo -xarch=sparc ;;
2919 ultrasparc) echo -xarch=sparcvis ;;
2920 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2921 i586|pentium) echo -xchip=pentium ;;
2922 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2923 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2924 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2925 pentium4*) echo -xtarget=pentium4 ;;
2926 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2927 *-sse3) echo -xarch=sse3 ;;
2928 core2) echo -xarch=ssse3 -xchip=core2 ;;
2929 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2930 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2931 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2932 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2933 k8|opteron|athlon64|athlon-fx)
2934 echo -xarch=sse2a ;;
2935 athlon*) echo -xarch=pentium_proa ;;
2936 esac
2937 ;;
2938 -std=c99) echo -xc99 ;;
2939 -fomit-frame-pointer) echo -xregs=frameptr ;;
2940 -fPIC) echo -KPIC -xcode=pic32 ;;
2941 -W*,*) echo $flag ;;
2942 -f*-*|-W*|-mimpure-text) ;;
2943 -shared) echo -G ;;
2944 *) echo $flag ;;
2945 esac
2946 done
2947 }
2948
2949 tms470_flags(){
2950 for flag; do
2951 case $flag in
2952 -march=*|-mcpu=*)
2953 case "${flag#*=}" in
2954 armv7-a|cortex-a*) echo -mv=7a8 ;;
2955 armv7-r|cortex-r*) echo -mv=7r4 ;;
2956 armv7-m|cortex-m*) echo -mv=7m3 ;;
2957 armv6*|arm11*) echo -mv=6 ;;
2958 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2959 echo -mv=5e ;;
2960 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2961 esac
2962 ;;
2963 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2964 -mfpu=vfp) echo --float_support=vfpv2 ;;
2965 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2966 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2967 -msoft-float) echo --float_support=vfplib ;;
2968 -O[0-3]|-mf=*) echo $flag ;;
2969 -g) echo -g -mn ;;
2970 -pds=*) echo $flag ;;
2971 -D*|-I*) echo $flag ;;
2972 --gcc|--abi=*) echo $flag ;;
2973 -me) echo $flag ;;
2974 esac
2975 done
2976 }
2977
2978 probe_cc(){
2979 pfx=$1
2980 _cc=$2
2981
2982 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2983 unset _ld_o _ldflags _ld_lib _ld_path
2984 unset _depflags _DEPCMD _DEPFLAGS
2985 _flags_filter=echo
2986
2987 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2988 _type=llvm_gcc
2989 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
2990 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
2991 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2992 _cflags_speed='-O3'
2993 _cflags_size='-Os'
2994 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2995 _type=gcc
2996 gcc_version=$($_cc --version | head -n1)
2997 gcc_basever=$($_cc -dumpversion)
2998 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2999 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3000 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3001 if ! $_cc -dumpversion | grep -q '^2\.'; then
3002 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3003 fi
3004 _cflags_speed='-O3'
3005 _cflags_size='-Os'
3006 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3007 _type=icc
3008 _ident=$($_cc --version | head -n1)
3009 _depflags='-MMD'
3010 _cflags_speed='-O3'
3011 _cflags_size='-Os'
3012 _cflags_noopt='-O1'
3013 elif $_cc -v 2>&1 | grep -q xlc; then
3014 _type=xlc
3015 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3016 _cflags_speed='-O5'
3017 _cflags_size='-O5 -qcompact'
3018 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3019 _type=ccc
3020 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3021 _DEPFLAGS='-M'
3022 _cflags_speed='-fast'
3023 _cflags_size='-O1'
3024 _flags_filter=ccc_flags
3025 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3026 test -d "$sysroot" || die "No valid sysroot specified."
3027 _type=armcc
3028 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3029 armcc_conf="$PWD/armcc.conf"
3030 $_cc --arm_linux_configure \
3031 --arm_linux_config_file="$armcc_conf" \
3032 --configure_sysroot="$sysroot" \
3033 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3034 die "Error creating armcc configuration file."
3035 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3036 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3037 as_default="${cross_prefix}gcc"
3038 _depflags='-MMD'
3039 _cflags_speed='-O3'
3040 _cflags_size='-Os'
3041 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3042 _type=tms470
3043 _ident=$($_cc -version | head -n1 | tr -s ' ')
3044 _flags='--gcc --abi=eabi -me'
3045 _cc_e='-ppl -fe=$@'
3046 _cc_o='-fe=$@'
3047 _depflags='-ppa -ppd=$(@:.o=.d)'
3048 _cflags_speed='-O3 -mf=5'
3049 _cflags_size='-O3 -mf=2'
3050 _flags_filter=tms470_flags
3051 elif $_cc -v 2>&1 | grep -q clang; then
3052 _type=clang
3053 _ident=$($_cc --version 2>/dev/null | head -n1)
3054 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3055 _cflags_speed='-O3'
3056 _cflags_size='-Os'
3057 elif $_cc -V 2>&1 | grep -q Sun; then
3058 _type=suncc
3059 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3060 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3061 _DEPFLAGS='-xM1 -xc99'
3062 _ldflags='-std=c99'
3063 _cflags_speed='-O5'
3064 _cflags_size='-O5 -xspace'
3065 _flags_filter=suncc_flags
3066 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3067 _type=pathscale
3068 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3069 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3070 _cflags_speed='-O2'
3071 _cflags_size='-Os'
3072 _flags_filter='filter_out -Wdisabled-optimization'
3073 elif $_cc -v 2>&1 | grep -q Open64; then
3074 _type=open64
3075 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3076 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3077 _cflags_speed='-O2'
3078 _cflags_size='-Os'
3079 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3080 elif $_cc -V 2>&1 | grep -q Portland; then
3081 _type=pgi
3082 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3083 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3084 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3085 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3086 _cflags_noopt="-O1"
3087 _flags_filter=pgi_flags
3088 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3089 _type=armasm
3090 _ident=$($_cc | head -n1)
3091 # 4509: "This form of conditional instruction is deprecated"
3092 _flags="-nologo -ignore 4509"
3093 _flags_filter=armasm_flags
3094 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3095 _type=msvc
3096 _ident=$($_cc 2>&1 | head -n1)
3097 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3098 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3099 _cflags_speed="-O2"
3100 _cflags_size="-O1"
3101 if $_cc -nologo- 2>&1 | grep -q Linker; then
3102 _ld_o='-out:$@'
3103 else
3104 _ld_o='-Fe$@'
3105 fi
3106 _cc_o='-Fo$@'
3107 _cc_e='-P -Fi$@'
3108 _flags_filter=msvc_flags
3109 _ld_lib='lib%.a'
3110 _ld_path='-libpath:'
3111 _flags='-nologo'
3112 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS'
3113 elif $_cc 2>&1 | grep -q Intel; then
3114 _type=icl
3115 _ident=$($_cc 2>&1 | head -n1)
3116 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3117 # Not only is O3 broken on 13.x+ but it is slower on all previous
3118 # versions (tested) as well.
3119 _cflags_speed="-O2"
3120 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3121 if $_cc 2>&1 | grep -q Linker; then
3122 _ld_o='-out:$@'
3123 else
3124 _ld_o='-Fe$@'
3125 fi
3126 _cc_o='-Fo$@'
3127 _cc_e='-P'
3128 _flags_filter=icl_flags
3129 _ld_lib='lib%.a'
3130 _ld_path='-libpath:'
3131 # -Qdiag-error to make icl error when seeing certain unknown arguments
3132 _flags='-nologo -Qdiag-error:4044,10157'
3133 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3134 # with MSVC which enables it by default.
3135 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3136 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3137 _type=cparser
3138 _ident=$($_cc --version | head -n1)
3139 _depflags='-MMD'
3140 _cflags_speed='-O4'
3141 _cflags_size='-O2'
3142 _flags_filter=cparser_flags
3143 fi
3144
3145 eval ${pfx}_type=\$_type
3146 eval ${pfx}_ident=\$_ident
3147 }
3148
3149 set_ccvars(){
3150 eval ${1}_C=\${_cc_c-\${${1}_C}}
3151 eval ${1}_E=\${_cc_e-\${${1}_E}}
3152 eval ${1}_O=\${_cc_o-\${${1}_O}}
3153
3154 if [ -n "$_depflags" ]; then
3155 eval ${1}_DEPFLAGS=\$_depflags
3156 else
3157 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3158 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3159 eval DEP${1}FLAGS=\$_flags
3160 fi
3161 }
3162
3163 probe_cc cc "$cc"
3164 cflags_filter=$_flags_filter
3165 cflags_speed=$_cflags_speed
3166 cflags_size=$_cflags_size
3167 cflags_noopt=$_cflags_noopt
3168 add_cflags $_flags $_cflags
3169 cc_ldflags=$_ldflags
3170 set_ccvars CC
3171
3172 probe_cc hostcc "$host_cc"
3173 host_cflags_filter=$_flags_filter
3174 add_host_cflags $_flags $_cflags
3175 set_ccvars HOSTCC
3176
3177 test -n "$cc_type" && enable $cc_type ||
3178 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3179
3180 : ${as_default:=$cc}
3181 : ${dep_cc_default:=$cc}
3182 : ${ld_default:=$cc}
3183 : ${host_ld_default:=$host_cc}
3184 set_default ar as dep_cc ld host_ld
3185
3186 probe_cc as "$as"
3187 asflags_filter=$_flags_filter
3188 add_asflags $_flags $_cflags
3189 set_ccvars AS
3190
3191 probe_cc ld "$ld"
3192 ldflags_filter=$_flags_filter
3193 add_ldflags $_flags $_ldflags
3194 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3195 LD_O=${_ld_o-$LD_O}
3196 LD_LIB=${_ld_lib-$LD_LIB}
3197 LD_PATH=${_ld_path-$LD_PATH}
3198
3199 probe_cc hostld "$host_ld"
3200 host_ldflags_filter=$_flags_filter
3201 add_host_ldflags $_flags $_ldflags
3202 HOSTLD_O=${_ld_o-$HOSTLD_O}
3203
3204 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3205 probe_cc depcc "$dep_cc"
3206 CCDEP=${_DEPCMD:-$DEPCMD}
3207 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3208 DEPCCFLAGS=$_flags
3209 fi
3210
3211 if $ar 2>&1 | grep -q Microsoft; then
3212 arflags="-nologo"
3213 ar_o='-out:$@'
3214 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3215 arflags="rq"
3216 ar_o='$@'
3217 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3218 arflags='-Xany -r -c'
3219 ar_o='$@'
3220 else
3221 arflags="rc"
3222 ar_o='$@'
3223 fi
3224
3225 add_cflags $extra_cflags
3226 add_asflags $extra_cflags
3227
3228 if test -n "$sysroot"; then
3229 case "$cc_type" in
3230 gcc|llvm_gcc|clang)
3231 add_cppflags --sysroot="$sysroot"
3232 add_ldflags --sysroot="$sysroot"
3233 ;;
3234 tms470)
3235 add_cppflags -I"$sysinclude"
3236 add_ldflags --sysroot="$sysroot"
3237 ;;
3238 esac
3239 fi
3240
3241 if test "$cpu" = host; then
3242 enabled cross_compile &&
3243 die "--cpu=host makes no sense when cross-compiling."
3244
3245 case "$cc_type" in
3246 gcc|llvm_gcc)
3247 check_native(){
3248 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3249 sed -n "/cc1.*$1=/{
3250 s/.*$1=\\([^ ]*\\).*/\\1/
3251 p
3252 q
3253 }" $TMPE
3254 }
3255 cpu=$(check_native -march || check_native -mcpu)
3256 ;;
3257 esac
3258
3259 test "${cpu:-host}" = host &&
3260 die "--cpu=host not supported with compiler $cc"
3261 fi
3262
3263 # Deal with common $arch aliases
3264 case "$arch" in
3265 aarch64|arm64)
3266 arch="aarch64"
3267 ;;
3268 arm*)
3269 arch="arm"
3270 ;;
3271 mips*|IP*)
3272 arch="mips"
3273 ;;
3274 parisc*|hppa*)
3275 arch="parisc"
3276 ;;
3277 "Power Macintosh"|ppc*|powerpc*)
3278 arch="ppc"
3279 ;;
3280 s390|s390x)
3281 arch="s390"
3282 ;;
3283 sh4|sh)
3284 arch="sh4"
3285 ;;
3286 sun4u|sparc*)
3287 arch="sparc"
3288 ;;
3289 tilegx|tile-gx)
3290 arch="tilegx"
3291 ;;
3292 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3293 arch="x86"
3294 ;;
3295 esac
3296
3297 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3298 enable $arch
3299
3300 # Add processor-specific flags
3301 if enabled aarch64; then
3302
3303 case $cpu in
3304 armv*)
3305 cpuflags="-march=$cpu"
3306 ;;
3307 *)
3308 cpuflags="-mcpu=$cpu"
3309 ;;
3310 esac
3311
3312 elif enabled alpha; then
3313
3314 cpuflags="-mcpu=$cpu"
3315
3316 elif enabled arm; then
3317
3318 check_arm_arch() {
3319 check_cpp_condition stddef.h \
3320 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3321 $cpuflags
3322 }
3323
3324 probe_arm_arch() {
3325 if check_arm_arch 4; then echo armv4;
3326 elif check_arm_arch 4T; then echo armv4t;
3327 elif check_arm_arch 5; then echo armv5;
3328 elif check_arm_arch 5E; then echo armv5e;
3329 elif check_arm_arch 5T; then echo armv5t;
3330 elif check_arm_arch 5TE; then echo armv5te;
3331 elif check_arm_arch 5TEJ; then echo armv5te;
3332 elif check_arm_arch 6; then echo armv6;
3333 elif check_arm_arch 6J; then echo armv6j;
3334 elif check_arm_arch 6K; then echo armv6k;
3335 elif check_arm_arch 6Z; then echo armv6z;
3336 elif check_arm_arch 6ZK; then echo armv6zk;
3337 elif check_arm_arch 6T2; then echo armv6t2;
3338 elif check_arm_arch 7; then echo armv7;
3339 elif check_arm_arch 7A 7_A; then echo armv7-a;
3340 elif check_arm_arch 7S; then echo armv7-a;
3341 elif check_arm_arch 7R 7_R; then echo armv7-r;
3342 elif check_arm_arch 7M 7_M; then echo armv7-m;
3343 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3344 elif check_arm_arch 8A 8_A; then echo armv8-a;
3345 fi
3346 }
3347
3348 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3349
3350 case $cpu in
3351 armv*)
3352 cpuflags="-march=$cpu"
3353 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3354 ;;
3355 *)
3356 cpuflags="-mcpu=$cpu"
3357 case $cpu in
3358 cortex-a*) subarch=armv7a ;;
3359 cortex-r*) subarch=armv7r ;;
3360 cortex-m*) enable thumb; subarch=armv7m ;;
3361 arm11*) subarch=armv6 ;;
3362 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3363 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3364 *) subarch=$(probe_arm_arch) ;;
3365 esac
3366 ;;
3367 esac
3368
3369 case "$subarch" in
3370 armv5t*) enable fast_clz ;;
3371 armv[6-8]*) enable fast_clz fast_unaligned ;;
3372 esac
3373
3374 elif enabled avr32; then
3375
3376 case $cpu in
3377 ap7[02]0[0-2])
3378 subarch="avr32_ap"
3379 cpuflags="-mpart=$cpu"
3380 ;;
3381 ap)
3382 subarch="avr32_ap"
3383 cpuflags="-march=$cpu"
3384 ;;
3385 uc3[ab]*)
3386 subarch="avr32_uc"
3387 cpuflags="-mcpu=$cpu"
3388 ;;
3389 uc)
3390 subarch="avr32_uc"
3391 cpuflags="-march=$cpu"
3392 ;;
3393 esac
3394
3395 elif enabled bfin; then
3396
3397 cpuflags="-mcpu=$cpu"
3398
3399 elif enabled mips; then
3400
3401 cpuflags="-march=$cpu"
3402
3403 elif enabled ppc; then
3404
3405 disable ldbrx
3406
3407 case $(tolower $cpu) in
3408 601|ppc601|powerpc601)
3409 cpuflags="-mcpu=601"
3410 disable altivec
3411 ;;
3412 603*|ppc603*|powerpc603*)
3413 cpuflags="-mcpu=603"
3414 disable altivec
3415 ;;
3416 604*|ppc604*|powerpc604*)
3417 cpuflags="-mcpu=604"
3418 disable altivec
3419 ;;
3420 g3|75*|ppc75*|powerpc75*)
3421 cpuflags="-mcpu=750"
3422 disable altivec
3423 ;;
3424 g4|745*|ppc745*|powerpc745*)
3425 cpuflags="-mcpu=7450"
3426 disable vsx
3427 ;;
3428 74*|ppc74*|powerpc74*)
3429 cpuflags="-mcpu=7400"
3430 disable vsx
3431 ;;
3432 g5|970|ppc970|powerpc970)
3433 cpuflags="-mcpu=970"
3434 disable vsx
3435 ;;
3436 power[3-6]*)
3437 cpuflags="-mcpu=$cpu"
3438 disable vsx
3439 ;;
3440 power[7-8]*)
3441 cpuflags="-mcpu=$cpu"
3442 enable ldbrx
3443 ;;
3444 cell)
3445 cpuflags="-mcpu=cell"
3446 enable ldbrx
3447 disable vsx
3448 ;;
3449 e500mc)
3450 cpuflags="-mcpu=e500mc"
3451 disable altivec
3452 ;;
3453 e500v2)
3454 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3455 disable altivec
3456 disable dcbzl
3457 ;;
3458 e500)
3459 cpuflags="-mcpu=8540 -mhard-float"
3460 disable altivec
3461 disable dcbzl
3462 ;;
3463 esac
3464
3465 elif enabled sparc; then
3466
3467 case $cpu in
3468 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3469 cpuflags="-mcpu=$cpu"
3470 ;;
3471 ultrasparc*|niagara[234])
3472 cpuflags="-mcpu=$cpu"
3473 ;;
3474 esac
3475
3476 elif enabled x86; then
3477
3478 case $cpu in
3479 i[345]86|pentium)
3480 cpuflags="-march=$cpu"
3481 disable i686
3482 disable mmx
3483 ;;
3484 # targets that do NOT support nopl and conditional mov (cmov)
3485 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3486 cpuflags="-march=$cpu"
3487 disable i686
3488 ;;
3489 # targets that do support nopl and conditional mov (cmov)
3490 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3491 cpuflags="-march=$cpu"
3492 enable i686
3493 enable fast_cmov
3494 ;;
3495 # targets that do support conditional mov but on which it's slow
3496 pentium4|pentium4m|prescott|nocona)
3497 cpuflags="-march=$cpu"
3498 enable i686
3499 disable fast_cmov
3500 ;;
3501 esac
3502
3503 fi
3504
3505 if [ "$cpu" != generic ]; then
3506 add_cflags $cpuflags
3507 add_asflags $cpuflags
3508 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3509 fi
3510
3511 # compiler sanity check
3512 check_exec <<EOF
3513 int main(void){ return 0; }
3514 EOF
3515 if test "$?" != 0; then
3516 echo "$cc is unable to create an executable file."
3517 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3518 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3519 echo "Only do this if you know what cross compiling means."
3520 fi
3521 die "C compiler test failed."
3522 fi
3523
3524 add_cppflags -D_ISOC99_SOURCE
3525 check_cflags -std=c99
3526 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3527 #include <stdlib.h>
3528 EOF
3529 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3530 #include <stdlib.h>
3531 EOF
3532
3533 add_host_cppflags -D_ISOC99_SOURCE
3534 check_host_cflags -std=c99
3535 check_host_cflags -Wall
3536 check_host_cflags -O3
3537
3538 check_64bit(){
3539 arch32=$1
3540 arch64=$2
3541 expr=$3
3542 check_code cc "" "int test[2*($expr) - 1]" &&
3543 subarch=$arch64 || subarch=$arch32
3544 }
3545
3546 case "$arch" in
3547 aarch64|alpha|ia64)
3548 spic=$shared
3549 ;;
3550 mips)
3551 check_64bit mips mips64 '_MIPS_SIM > 1'
3552 spic=$shared
3553 ;;
3554 parisc)
3555 check_64bit parisc parisc64 'sizeof(void *) > 4'
3556 spic=$shared
3557 ;;
3558 ppc)
3559 check_64bit ppc ppc64 'sizeof(void *) > 4'
3560 spic=$shared
3561 ;;
3562 s390)
3563 check_64bit s390 s390x 'sizeof(void *) > 4'
3564 spic=$shared
3565 ;;
3566 sparc)
3567 check_64bit sparc sparc64 'sizeof(void *) > 4'
3568 spic=$shared
3569 ;;
3570 x86)
3571 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3572 if test "$subarch" = "x86_64"; then
3573 spic=$shared
3574 fi
3575 ;;
3576 esac
3577
3578 enable $subarch
3579 enabled spic && enable_weak pic
3580
3581 # OS specific
3582 case $target_os in
3583 aix)
3584 SHFLAGS=-shared
3585 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3586 enabled shared && add_ldflags -Wl,-brtl
3587 ;;
3588 android)
3589 disable symver
3590 enable section_data_rel_ro
3591 SLIB_INSTALL_NAME='$(SLIBNAME)'
3592 SLIB_INSTALL_LINKS=
3593 # soname not set on purpose
3594 SHFLAGS=-shared
3595 ;;
3596 haiku)
3597 prefix_default="/boot/common"
3598 network_extralibs="-lnetwork"
3599 host_libs=
3600 ;;
3601 sunos)
3602 SHFLAGS='-shared -Wl,-h,$$(@F)'
3603 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3604 network_extralibs="-lsocket -lnsl"
3605 # When using suncc to build, the Solaris linker will mark
3606 # an executable with each instruction set encountered by
3607 # the Solaris assembler. As our libraries contain their own
3608 # guards for processor-specific code, instead suppress
3609 # generation of the HWCAPS ELF section on Solaris x86 only.
3610 enabled_all suncc x86 &&
3611 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3612 add_ldflags -Wl,-M,mapfile
3613 nm_default='nm -P -g'
3614 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3615 ;;
3616 netbsd)
3617 disable symver
3618 oss_indev_extralibs="-lossaudio"
3619 oss_outdev_extralibs="-lossaudio"
3620 ;;
3621 openbsd|bitrig)
3622 disable symver
3623 SHFLAGS='-shared'
3624 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3625 SLIB_INSTALL_LINKS=
3626 oss_indev_extralibs="-lossaudio"
3627 oss_outdev_extralibs="-lossaudio"
3628 ;;
3629 dragonfly)
3630 disable symver
3631 ;;
3632 freebsd)
3633 ;;
3634 bsd/os)
3635 add_extralibs -lpoll -lgnugetopt
3636 ;;
3637 darwin)
3638 enabled ppc && add_asflags -force_cpusubtype_ALL
3639 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3640 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3641 add_ldflags -Wl,-dynamic,-search_paths_first
3642 SLIBSUF=".dylib"
3643 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3644 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3645 objformat="macho"
3646 enabled x86_64 && objformat="macho64"
3647 enabled_any pic shared ||
3648 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3649 ;;
3650 mingw32*)
3651 if test $target_os = "mingw32ce"; then
3652 disable network
3653 else
3654 target_os=mingw32
3655 fi
3656 LIBTARGET=i386
3657 if enabled x86_64; then
3658 LIBTARGET="i386:x86-64"
3659 elif enabled arm; then
3660 LIBTARGET=arm-wince
3661 fi
3662 check_ldflags -Wl,--nxcompat
3663 check_ldflags -Wl,--dynamicbase
3664 shlibdir_default="$bindir_default"
3665 SLIBPREF=""
3666 SLIBSUF=".dll"
3667 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3668 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3669 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3670 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3671 SLIB_INSTALL_LINKS=
3672 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3673 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3674 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3675 objformat="win32"
3676 dlltool="${cross_prefix}dlltool"
3677 ranlib=:
3678 enable dos_paths
3679 ;;
3680 win32|win64)
3681 disable symver
3682 if enabled shared; then
3683 # Link to the import library instead of the normal static library
3684 # for shared libs.
3685 LD_LIB='%.lib'
3686 # Cannot build both shared and static libs with MSVC or icl.
3687 disable static
3688 fi
3689 shlibdir_default="$bindir_default"
3690 SLIBPREF=""
3691 SLIBSUF=".dll"
3692 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3693 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3694 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3695 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3696 SLIB_INSTALL_LINKS=
3697 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3698 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3699 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3700 objformat="win32"
3701 ranlib=:
3702 enable dos_paths
3703 ;;
3704 cygwin*)
3705 target_os=cygwin
3706 shlibdir_default="$bindir_default"
3707 SLIBPREF="cyg"
3708 SLIBSUF=".dll"
3709 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3710 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3711 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3712 SLIB_INSTALL_LINKS=
3713 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3714 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3715 objformat="win32"
3716 enable dos_paths
3717 ;;
3718 *-dos|freedos|opendos)
3719 network_extralibs="-lsocket"
3720 objformat="coff"
3721 enable dos_paths
3722 add_cppflags -U__STRICT_ANSI__
3723 ;;
3724 linux)
3725 enable dv1394
3726 enable section_data_rel_ro
3727 ;;
3728 irix*)
3729 target_os=irix
3730 ranlib="echo ignoring ranlib"
3731 ;;
3732 os/2*)
3733 ln_s="cp -f"
3734 objformat="aout"
3735 add_cppflags -D_GNU_SOURCE
3736 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3737 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3738 LIBSUF="_s.a"
3739 SLIBPREF=""
3740 SLIBSUF=".dll"
3741 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3742 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3743 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3744 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3745 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3746 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3747 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3748 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3749 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3750 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3751 enable dos_paths
3752 ;;
3753 gnu/kfreebsd)
3754 add_cppflags -D_BSD_SOURCE
3755 ;;
3756 gnu)
3757 ;;
3758 qnx)
3759 add_cppflags -D_QNX_SOURCE
3760 network_extralibs="-lsocket"
3761 ;;
3762 symbian)
3763 SLIBSUF=".dll"
3764 enable dos_paths
3765 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3766 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3767 add_ldflags -Wl,--target1-abs,--no-undefined \
3768 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3769 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3770 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3771 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3772 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3773 ;;
3774 osf1)
3775 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3776 ;;
3777 minix)
3778 ;;
3779 plan9)
3780 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3781 -D_REENTRANT_SOURCE \
3782 -D_RESEARCH_SOURCE \
3783 -DFD_SETSIZE=96 \
3784 -DHAVE_SOCK_OPTS
3785 add_compat strtod.o strtod=avpriv_strtod
3786 network_extralibs='-lbsd'
3787 exeobjs=compat/plan9/main.o
3788 cp_f='cp'
3789 ;;
3790 none)
3791 ;;
3792 *)
3793 die "Unknown OS '$target_os'."
3794 ;;
3795 esac
3796
3797 # determine libc flavour
3798
3799 probe_libc(){
3800 pfx=$1
3801 pfx_no_=${pfx%_}
3802 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3803 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3804 eval ${pfx}libc_type=uclibc
3805 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3806 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3807 eval ${pfx}libc_type=glibc
3808 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3809 # MinGW headers can be installed on Cygwin, so check for newlib first.
3810 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3811 eval ${pfx}libc_type=newlib
3812 add_${pfx}cppflags -U__STRICT_ANSI__
3813 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3814 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3815 eval ${pfx}libc_type=mingw64
3816 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3817 eval test \$${pfx_no_}cc_type = "gcc" &&
3818 add_${pfx}cppflags -D__printf__=__gnu_printf__
3819 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3820 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3821 eval ${pfx}libc_type=mingw32
3822 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3823 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3824 die "ERROR: MinGW32 runtime version must be >= 3.15."
3825 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3826 eval test \$${pfx_no_}cc_type = "gcc" &&
3827 add_${pfx}cppflags -D__printf__=__gnu_printf__
3828 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3829 eval ${pfx}libc_type=msvcrt
3830 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3831 if [ "$pfx" = host_ ]; then
3832 add_host_cppflags -Dsnprintf=_snprintf
3833 else
3834 add_compat strtod.o strtod=avpriv_strtod
3835 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3836 _snprintf=avpriv_snprintf \
3837 vsnprintf=avpriv_vsnprintf
3838 fi
3839 fi
3840 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3841 # 0x601 by default unless something else is set by the user.
3842 # This can easily lead to us detecting functions only present
3843 # in such new versions and producing binaries requiring windows 7.0.
3844 # Therefore explicitly set the default to XP unless the user has
3845 # set something else on the command line.
3846 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3847 # family. For these cases, configure is free to use any functions
3848 # found in the SDK headers by default. (Alternatively, we could force
3849 # _WIN32_WINNT to 0x0602 in that case.)
3850 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3851 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3852 #ifdef WINAPI_FAMILY
3853 #include <winapifamily.h>
3854 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3855 #error not desktop
3856 #endif
3857 #endif
3858 EOF
3859 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3860 eval ${pfx}libc_type=klibc
3861 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3862 eval ${pfx}libc_type=bionic
3863 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3864 eval ${pfx}libc_type=solaris
3865 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3866 else
3867 eval ${pfx}libc_type=default
3868 add_${pfx}cppflags -D_DEFAULT_SOURCE
3869 fi
3870 }
3871
3872 probe_libc
3873 test -n "$libc_type" && enable libc_$libc_type
3874 probe_libc host_
3875 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3876
3877 case $libc_type in
3878 bionic)
3879 add_compat strtod.o strtod=avpriv_strtod
3880 ;;
3881 esac
3882
3883 # hacks for compiler/libc/os combinations
3884
3885 if enabled_all tms470 libc_glibc; then
3886 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3887 add_cppflags -D__USER_LABEL_PREFIX__=
3888 add_cppflags -D__builtin_memset=memset
3889 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3890 add_cflags -pds=48 # incompatible redefinition of macro
3891 fi
3892
3893 if enabled_all ccc libc_glibc; then
3894 add_ldflags -Wl,-z,now # calls to libots crash without this
3895 fi
3896
3897 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3898 add_cppflags '-I\$(SRC_PATH)/compat/float'
3899
3900 esc(){
3901 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3902 }
3903
3904 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3905
3906 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3907
3908 set_default $PATHS_LIST
3909 set_default nm
3910
3911 # we need to build at least one lib type
3912 if ! enabled_any static shared; then
3913 cat <<EOF
3914 At least one library type must be built.
3915 Specify --enable-static to build the static libraries or --enable-shared to
3916 build the shared libraries as well. To only build the shared libraries specify
3917 --disable-static in addition to --enable-shared.
3918 EOF
3919 exit 1;
3920 fi
3921
3922 die_license_disabled() {
3923 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3924 }
3925
3926 die_license_disabled gpl libcdio
3927 die_license_disabled gpl libx264
3928 die_license_disabled gpl libx265
3929 die_license_disabled gpl libxavs
3930 die_license_disabled gpl libxvid
3931 die_license_disabled gpl x11grab
3932
3933 die_license_disabled nonfree libfaac
3934 die_license_disabled nonfree libfdk_aac
3935 die_license_disabled nonfree nvenc
3936 die_license_disabled nonfree openssl
3937
3938 die_license_disabled version3 libopencore_amrnb
3939 die_license_disabled version3 libopencore_amrwb
3940 die_license_disabled version3 libvo_aacenc
3941 die_license_disabled version3 libvo_amrwbenc
3942
3943 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3944
3945 disabled optimizations || check_cflags -fomit-frame-pointer
3946
3947 enable_weak_pic() {
3948 disabled pic && return
3949 enable pic
3950 add_cppflags -DPIC
3951 case "$target_os" in
3952 mingw*|cygwin*)
3953 ;;
3954 *)
3955 add_cflags -fPIC
3956 ;;
3957 esac
3958 add_asflags -fPIC
3959 }
3960
3961 enabled pic && enable_weak_pic
3962
3963 check_cc <<EOF || die "Symbol mangling check failed."
3964 int ff_extern;
3965 EOF
3966 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3967 extern_prefix=${sym%%ff_extern*}
3968
3969 check_cc <<EOF && enable_weak inline_asm
3970 void foo(void) { __asm__ volatile ("" ::); }
3971 EOF
3972
3973 _restrict=
3974 for restrict_keyword in restrict __restrict__ __restrict; do
3975 check_cc <<EOF && _restrict=$restrict_keyword && break
3976 void foo(char * $restrict_keyword p);
3977 EOF
3978 done
3979
3980 check_cc <<EOF && enable pragma_deprecated
3981 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3982 EOF
3983
3984 check_cc <<EOF && enable attribute_packed
3985 struct { int x; } __attribute__((packed)) x;
3986 EOF
3987
3988 check_cc <<EOF && enable attribute_may_alias
3989 union { int x; } __attribute__((may_alias)) x;
3990 EOF
3991
3992 check_cc <<EOF || die "endian test failed"
3993 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3994 EOF
3995 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3996
3997 check_gas() {
3998 log "check_gas using '$as' as AS"
3999 # :vararg is used on aarch64, arm and ppc altivec
4000 check_as <<EOF || return 1
4001 .macro m n, y:vararg=0
4002 \n: .int \y
4003 .endm
4004 m x
4005 EOF
4006 # .altmacro is only used in arm asm
4007 ! enabled arm || check_as <<EOF || return 1
4008 .altmacro
4009 EOF
4010 enable gnu_as
4011 return 0
4012 }
4013
4014 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4015 nogas=:
4016 enabled_any arm aarch64 && nogas=die
4017 enabled_all ppc altivec && nogas=warn
4018 as_noop=-v
4019
4020 case $as_type in
4021 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4022 gcc) gaspp_as_type=gas ;;
4023 *) gaspp_as_type=$as_type ;;
4024 esac
4025
4026 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4027
4028 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4029 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4030
4031 if ! check_gas ; then
4032 as=${gas:=$as}
4033 check_gas || \
4034 $nogas "GNU assembler not found, install/update gas-preprocessor"
4035 fi
4036
4037 check_as <<EOF && enable as_func
4038 .func test
4039 .endfunc
4040 EOF
4041 fi
4042
4043 check_inline_asm inline_asm_labels '"1:\n"'
4044
4045 if enabled aarch64; then
4046 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4047 # internal assembler in clang 3.3 does not support this instruction
4048 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4049 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4050
4051 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4052
4053 elif enabled alpha; then
4054
4055 check_cflags -mieee
4056
4057 elif enabled arm; then
4058
4059 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4060 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4061 enabled thumb && check_cflags -mthumb || check_cflags -marm
4062
4063 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4064 enable vfp_args
4065 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4066 enable vfp_args
4067 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4068 case "${cross_prefix:-$cc}" in
4069 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4070 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4071 __asm__ (".eabi_attribute 28, 1");
4072 int main(void) { return 0; }
4073 EOF
4074 esac
4075 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4076 fi
4077
4078 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4079 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4080 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4081 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4082 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4083 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4084
4085 [ $target_os = linux ] || [ $target_os = android ] ||
4086 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4087 $ARCH_EXT_LIST_ARM
4088
4089 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4090
4091 check_as <<EOF && enable as_dn_directive
4092 ra .dn d0.i16
4093 .unreq ra
4094 EOF
4095
4096 # llvm's integrated assembler supports .object_arch from llvm 3.5
4097 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4098 .object_arch armv4
4099 EOF
4100
4101 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4102
4103 elif enabled mips; then
4104
4105 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4106
4107 # make sure that only an instruction set is enabled
4108 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4109
4110 if enabled mips64; then
4111 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4112 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4113 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4114 else
4115 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4116 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4117 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4118 fi
4119
4120 elif enabled parisc; then
4121
4122 if enabled gcc; then
4123 case $($cc -dumpversion) in
4124 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4125 esac
4126 fi
4127
4128 elif enabled ppc; then
4129
4130 enable local_aligned_8 local_aligned_16
4131
4132 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4133 check_inline_asm ibm_asm '"add 0, 0, 0"'
4134 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4135 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4136
4137 # AltiVec flags: The FSF version of GCC differs from the Apple version
4138 if enabled altivec; then
4139 check_cflags -maltivec -mabi=altivec &&
4140 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4141 check_cflags -faltivec
4142
4143 # check if our compiler supports Motorola AltiVec C API
4144 check_cc <<EOF || disable altivec
4145 $inc_altivec_h
4146 int main(void) {
4147 vector signed int v1 = (vector signed int) { 0 };
4148 vector signed int v2 = (vector signed int) { 1 };
4149 v1 = vec_add(v1, v2);
4150 return 0;
4151 }
4152 EOF
4153
4154 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4155 fi
4156
4157 if enabled vsx; then
4158 check_cflags -mvsx &&
4159 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4160 fi
4161
4162 if enabled power8; then
4163 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4164 fi
4165
4166 elif enabled x86; then
4167
4168 check_builtin rdtsc intrin.h "__rdtsc()"
4169 check_builtin mm_empty mmintrin.h "_mm_empty()"
4170
4171 enable local_aligned_8 local_aligned_16
4172
4173 # check whether EBP is available on x86
4174 # As 'i' is stored on the stack, this program will crash
4175 # if the base pointer is used to access it because the
4176 # base pointer is cleared in the inline assembly code.
4177 check_exec_crash <<EOF && enable ebp_available
4178 volatile int i=0;
4179 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4180 return i;
4181 EOF
4182
4183 # check whether EBX is available on x86
4184 check_inline_asm ebx_available '""::"b"(0)' &&
4185 check_inline_asm ebx_available '"":::"%ebx"'
4186
4187 # check whether xmm clobbers are supported
4188 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4189
4190 # check whether binutils is new enough to compile SSSE3/MMXEXT
4191 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4192 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4193
4194 if ! disabled_any asm mmx yasm; then
4195 if check_cmd $yasmexe --version; then
4196 enabled x86_64 && yasm_extra="-m amd64"
4197 yasm_debug="-g dwarf2"
4198 elif check_cmd nasm -v; then
4199 yasmexe=nasm
4200 yasm_debug="-g -F dwarf"
4201 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4202 fi
4203
4204 YASMFLAGS="-f $objformat $yasm_extra"
4205 enabled pic && append YASMFLAGS "-DPIC"
4206 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4207 case "$objformat" in
4208 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4209 esac
4210
4211 check_yasm "movbe ecx, [5]" && enable yasm ||
4212 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4213 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4214 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4215 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4216 check_yasm "CPU amdnop" || disable cpunop
4217 fi
4218
4219 case "$cpu" in
4220 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4221 disable fast_clz
4222 ;;
4223 esac
4224
4225 fi
4226
4227 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4228
4229 check_ldflags -Wl,--as-needed
4230
4231 if check_func dlopen; then
4232 ldl=
4233 elif check_func dlopen -ldl; then
4234 ldl=-ldl
4235 fi
4236
4237 if ! disabled network; then
4238 check_func getaddrinfo $network_extralibs
4239 check_func getservbyport $network_extralibs
4240 check_func inet_aton $network_extralibs
4241
4242 check_type netdb.h "struct addrinfo"
4243 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4244 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4245 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4246 check_type poll.h "struct pollfd"
4247 check_type netinet/sctp.h "struct sctp_event_subscribe"
4248 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4249 check_type netinet/in.h "struct sockaddr_in6"
4250 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4251 check_type "sys/types.h sys/socket.h" socklen_t
4252
4253 # Prefer arpa/inet.h over winsock2
4254 if check_header arpa/inet.h ; then
4255 check_func closesocket
4256 elif check_header winsock2.h ; then
4257 check_func_headers winsock2.h closesocket -lws2 &&
4258 network_extralibs="-lws2" ||
4259 { check_func_headers winsock2.h closesocket -lws2_32 &&
4260 network_extralibs="-lws2_32"; } || disable winsock2_h network
4261 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4262
4263 check_type ws2tcpip.h socklen_t
4264 check_type ws2tcpip.h "struct addrinfo"
4265 check_type ws2tcpip.h "struct group_source_req"
4266 check_type ws2tcpip.h "struct ip_mreq_source"
4267 check_type ws2tcpip.h "struct ipv6_mreq"
4268 check_type winsock2.h "struct pollfd"
4269 check_struct winsock2.h "struct sockaddr" sa_len
4270 check_type ws2tcpip.h "struct sockaddr_in6"
4271 check_type ws2tcpip.h "struct sockaddr_storage"
4272 else
4273 disable network
4274 fi
4275 fi
4276
4277 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4278 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4279 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4280 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4281
4282 case "$custom_allocator" in
4283 jemalloc)
4284 # jemalloc by default does not use a prefix
4285 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4286 ;;
4287 tcmalloc)
4288 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4289 malloc_prefix=tc_
4290 ;;
4291 esac
4292
4293 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4294 check_func ${malloc_prefix}memalign && enable memalign
4295 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4296
4297 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4298 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4299
4300 check_func fcntl
4301 check_func fork
4302 check_func gethrtime
4303 check_func getopt
4304 check_func getrusage
4305 check_func gettimeofday
4306 check_func gmtime_r
4307 check_func isatty
4308 check_func localtime_r
4309 check_func mach_absolute_time
4310 check_func mkstemp
4311 check_func mmap
4312 check_func mprotect
4313 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4314 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4315 check_func sched_getaffinity
4316 check_func setrlimit
4317 check_func strerror_r
4318 check_func sysconf
4319 check_func sysctl
4320 check_func usleep
4321
4322 check_func_headers io.h setmode
4323 check_func_headers stdlib.h getenv
4324
4325 check_func_headers windows.h CoTaskMemFree -lole32
4326 check_func_headers windows.h GetProcessAffinityMask
4327 check_func_headers windows.h GetProcessTimes
4328 check_func_headers windows.h GetSystemTimeAsFileTime
4329 check_func_headers windows.h LoadLibrary
4330 check_func_headers windows.h MapViewOfFile
4331 check_func_headers windows.h SetConsoleTextAttribute
4332 check_func_headers windows.h Sleep
4333 check_func_headers windows.h VirtualAlloc
4334 check_struct windows.h "CONDITION_VARIABLE" Ptr
4335
4336 check_header direct.h
4337 check_header dlfcn.h
4338 check_header d3d11.h
4339 check_header dxva.h
4340 check_header dxva2api.h
4341 check_header io.h
4342 check_header mach/mach_time.h
4343 check_header malloc.h
4344 check_header poll.h
4345 check_header sys/mman.h
4346 check_header sys/param.h
4347 check_header sys/resource.h
4348 check_header sys/select.h
4349 check_header sys/time.h
4350 check_header sys/un.h
4351 check_header unistd.h
4352 check_header valgrind/valgrind.h
4353 check_header vdpau/vdpau.h
4354 check_header vdpau/vdpau_x11.h
4355 check_header VideoDecodeAcceleration/VDADecoder.h
4356 check_header windows.h
4357 check_header X11/extensions/XvMClib.h
4358
4359 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4360 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4361 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4362
4363 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4364
4365 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4366 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4367 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4368
4369 if ! disabled w32threads && ! enabled pthreads; then
4370 check_func_headers "windows.h process.h" _beginthreadex &&
4371 enable w32threads || disable w32threads
4372 fi
4373
4374 # check for some common methods of building with pthread support
4375 # do this before the optional library checks as some of them require pthreads
4376 if ! disabled pthreads && ! enabled w32threads; then
4377 enable pthreads
4378 if check_func pthread_join -pthread; then
4379 add_cflags -pthread
4380 add_extralibs -pthread
4381 elif check_func pthread_join -pthreads; then
4382 add_cflags -pthreads
4383 add_extralibs -pthreads
4384 eli