Add MagicYUV decoder
[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 Individual component options:
136 --disable-everything disable all components listed below
137 --disable-encoder=NAME disable encoder NAME
138 --enable-encoder=NAME enable encoder NAME
139 --disable-encoders disable all encoders
140 --disable-decoder=NAME disable decoder NAME
141 --enable-decoder=NAME enable decoder NAME
142 --disable-decoders disable all decoders
143 --disable-hwaccel=NAME disable hwaccel NAME
144 --enable-hwaccel=NAME enable hwaccel NAME
145 --disable-hwaccels disable all hwaccels
146 --disable-muxer=NAME disable muxer NAME
147 --enable-muxer=NAME enable muxer NAME
148 --disable-muxers disable all muxers
149 --disable-demuxer=NAME disable demuxer NAME
150 --enable-demuxer=NAME enable demuxer NAME
151 --disable-demuxers disable all demuxers
152 --enable-parser=NAME enable parser NAME
153 --disable-parser=NAME disable parser NAME
154 --disable-parsers disable all parsers
155 --enable-bsf=NAME enable bitstream filter NAME
156 --disable-bsf=NAME disable bitstream filter NAME
157 --disable-bsfs disable all bitstream filters
158 --enable-protocol=NAME enable protocol NAME
159 --disable-protocol=NAME disable protocol NAME
160 --disable-protocols disable all protocols
161 --enable-indev=NAME enable input device NAME
162 --disable-indev=NAME disable input device NAME
163 --disable-indevs disable input devices
164 --enable-outdev=NAME enable output device NAME
165 --disable-outdev=NAME disable output device NAME
166 --disable-outdevs disable output devices
167 --disable-devices disable all devices
168 --enable-filter=NAME enable filter NAME
169 --disable-filter=NAME disable filter NAME
170 --disable-filters disable all filters
171
172 External library support:
173
174 Using any of the following switches will allow Libav to link to the
175 corresponding external library. All the components depending on that library
176 will become enabled, if all their other dependencies are met and they are not
177 explicitly disabled. E.g. --enable-libwavpack will enable linking to
178 libwavpack and allow the libwavpack encoder to be built, unless it is
179 specifically disabled with --disable-encoder=libwavpack.
180
181 Note that only the system libraries are auto-detected. All the other external
182 libraries must be explicitly enabled.
183
184 Also note that the following help text describes the purpose of the libraries
185 themselves, not all their features will necessarily be usable by Libav.
186
187 --enable-avisynth video frameserver
188 --enable-bzlib bzip2 compression [autodetect]
189 --enable-frei0r video filtering plugins
190 --enable-gnutls crypto
191 --enable-libbs2b Bauer stereophonic-to-binaural DSP
192 --enable-libcdio audio CD input
193 --enable-libdc1394 IEEE 1394/Firewire camera input
194 --enable-libdcadec DCA audio decoding
195 --enable-libfaac AAC audio encoding
196 --enable-libfdk-aac AAC audio encoding/decoding
197 --enable-libfontconfig font configuration and management
198 --enable-libfreetype font rendering
199 --enable-libgsm GSM audio encoding/decoding
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libkvazaar HEVC video encoding
202 --enable-libmp3lame MP3 audio encoding
203 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
204 --enable-libopencore-amrwb AMR-WB audio decoding
205 --enable-libopencv computer vision
206 --enable-libopenh264 H.264 video encoding/decoding
207 --enable-libopenjpeg JPEG 2000 image encoding/decoding
208 --enable-libopus Opus audio encoding/decoding
209 --enable-libpulse Pulseaudio sound server
210 --enable-librtmp RTMP streaming
211 --enable-libschroedinger Dirac video encoding/decoding
212 --enable-libsnappy snappy compression
213 --enable-libspeex Speex audio encoding/decoding
214 --enable-libtheora Theora video encoding/decoding
215 --enable-libtwolame MP2 audio encoding
216 --enable-libvo-aacenc AAC audio encoding
217 --enable-libvo-amrwbenc AMR-WB audio encoding
218 --enable-libvorbis Vorbis audio encoding/decoding
219 --enable-libvpx VP* video encoding/decoding
220 --enable-libwavpack Wavpack audio encoding/decoding
221 --enable-libwebp WebP image encoding/decoding
222 --enable-libx264 H.264 video encoding
223 --enable-libx265 HEVC video encoding
224 --enable-libxavs Chinese AVS video encoding
225 --enable-libxcb X window system protocol communication
226 --enable-libxcb-shm X11 shm communication [auto]
227 --enable-libxcb-xfixes X11 mouse rendering [auto]
228 --enable-libxvid MPEG-4 ASP video encoding
229 --enable-openssl crypto
230 --enable-x11grab X11 grabbing through xlib (legacy, use xcb instead)
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
236 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
237 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
238 --enable-libnpp Nvidia CUDA processing
239 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
240 --enable-nvenc Nvidia video encoding
241 --enable-omx OpenMAX IL
242 --enable-omx-rpi OpenMAX IL for Raspberry Pi
243 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
244 --enable-vda Apple Video Decode Acceleration [auto]
245 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
246
247 Toolchain options:
248 --arch=ARCH select architecture [$arch]
249 --cpu=CPU select the minimum required CPU (affects
250 instruction selection, may crash on older CPUs)
251 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
252 --enable-cross-compile assume a cross-compiler is used
253 --sysroot=PATH root of cross-build tree
254 --sysinclude=PATH location of cross-build system headers
255 --target-os=OS compiler targets OS [$target_os]
256 --target-exec=CMD command to run executables on target
257 --target-path=DIR path to view of build directory on target
258 --target-samples=DIR path to samples directory on target
259 --toolchain=NAME set tool defaults according to NAME
260 --nm=NM use nm tool
261 --ar=AR use archive tool AR [$ar_default]
262 --as=AS use assembler AS [$as_default]
263 --cc=CC use C compiler CC [$cc_default]
264 --objcc=OCC use ObjC compiler OCC [$cc_default]
265 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
266 --ld=LD use linker LD
267 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
268 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
269 --host-cc=HOSTCC use host C compiler HOSTCC
270 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
271 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
272 --host-ld=HOSTLD use host linker HOSTLD
273 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
274 --host-libs=HLIBS use libs HLIBS when linking for host
275 --host-os=OS compiler host OS [$target_os]
276 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
277 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
278 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
279 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
280 --extra-libs=ELIBS add ELIBS [$ELIBS]
281 --extra-version=STRING version string suffix []
282 --optflags=OPTFLAGS override optimization-related compiler flags
283 --build-suffix=SUFFIX library name suffix []
284 --enable-pic build position-independent code
285 --enable-thumb compile for Thumb instruction set
286 --enable-lto use link-time optimization
287 --env="ENV=override" override the environment variables
288
289 Advanced options (experts only):
290 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
291 --custom-allocator=NAME use a supported custom allocator
292 --disable-symver disable symbol versioning
293 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
294 --disable-safe-bitstream-reader
295 disable buffer boundary checking in bitreaders
296 (faster, but may crash)
297 --enable-memalign-hack emulate memalign, interferes with memory debuggers
298 --enable-sram allow use of on-chip SRAM
299
300 Optimization options (experts only):
301 --disable-asm disable all assembly optimizations
302 --disable-altivec disable AltiVec optimizations
303 --disable-vsx disable VSX optimizations
304 --disable-power8 disable POWER8 optimizations
305 --disable-amd3dnow disable 3DNow! optimizations
306 --disable-amd3dnowext disable 3DNow! extended optimizations
307 --disable-mmx disable MMX optimizations
308 --disable-mmxext disable MMXEXT optimizations
309 --disable-sse disable SSE optimizations
310 --disable-sse2 disable SSE2 optimizations
311 --disable-sse3 disable SSE3 optimizations
312 --disable-ssse3 disable SSSE3 optimizations
313 --disable-sse4 disable SSE4 optimizations
314 --disable-sse42 disable SSE4.2 optimizations
315 --disable-avx disable AVX optimizations
316 --disable-xop disable XOP optimizations
317 --disable-fma3 disable FMA3 optimizations
318 --disable-fma4 disable FMA4 optimizations
319 --disable-avx2 disable AVX2 optimizations
320 --disable-armv5te disable armv5te optimizations
321 --disable-armv6 disable armv6 optimizations
322 --disable-armv6t2 disable armv6t2 optimizations
323 --disable-vfp disable VFP optimizations
324 --disable-neon disable NEON optimizations
325 --disable-inline-asm disable use of inline assembly
326 --disable-yasm disable use of nasm/yasm assembly
327
328 Developer options (useful when working on Libav itself):
329 --disable-debug disable debugging symbols
330 --enable-debug=LEVEL set the debug level [$debuglevel]
331 --disable-optimizations disable compiler optimizations
332 --enable-extra-warnings enable more compiler warnings
333 --samples=PATH location of test samples for FATE, if not set use
334 \$LIBAV_SAMPLES at make invocation time.
335 --enable-neon-clobber-test check NEON registers for clobbering (should be
336 used only for debugging purposes)
337 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
338 should be used only for debugging purposes)
339 --enable-random randomly enable/disable components
340 --disable-random
341 --enable-random=LIST randomly enable/disable specific components or
342 --disable-random=LIST component groups. LIST is a comma-separated list
343 of NAME[:PROB] entries where NAME is a component
344 (group) and PROB the probability associated with
345 NAME (default 0.5).
346 --random-seed=VALUE seed value for --enable/disable-random
347 --disable-valgrind-backtrace do not print a backtrace under Valgrind
348 (only applies to --disable-optimizations builds)
349
350 NOTE: Object files are built at the place where configure is launched.
351 EOF
352 exit 0
353 }
354
355 quotes='""'
356
357 log(){
358 echo "$@" >> $logfile
359 }
360
361 log_file(){
362 log BEGIN $1
363 i=1
364 while read line; do
365 printf '%5s %s\n' "${i}" "${line}"
366 i=$(($i+1))
367 done < $1 >> $logfile
368 log END $1
369 }
370
371 echolog(){
372 log "$@"
373 echo "$@"
374 }
375
376 warn(){
377 log "WARNING: $*"
378 WARNINGS="${WARNINGS}WARNING: $*\n"
379 }
380
381 die(){
382 echolog "$@"
383 cat <<EOF
384
385 If you think configure made a mistake, make sure you are using the latest
386 version from Git. If the latest version fails, report the problem to the
387 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
388 EOF
389 if disabled logging; then
390 cat <<EOF
391 Rerun configure with logging enabled (do not use --disable-logging), and
392 include the log this produces with your report.
393 EOF
394 else
395 cat <<EOF
396 Include the log file "$logfile" produced by configure as this will help
397 solving the problem.
398 EOF
399 fi
400 exit 1
401 }
402
403 # Avoid locale weirdness, besides we really just want to translate ASCII.
404 toupper(){
405 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
406 }
407
408 tolower(){
409 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
410 }
411
412 c_escape(){
413 echo "$*" | sed 's/["\\]/\\\0/g'
414 }
415
416 sh_quote(){
417 v=$(echo "$1" | sed "s/'/'\\\\''/g")
418 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
419 echo "$v"
420 }
421
422 cleanws(){
423 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
424 }
425
426 filter(){
427 pat=$1
428 shift
429 for v; do
430 eval "case $v in $pat) echo $v ;; esac"
431 done
432 }
433
434 filter_out(){
435 pat=$1
436 shift
437 for v; do
438 eval "case $v in $pat) ;; *) echo $v ;; esac"
439 done
440 }
441
442 map(){
443 m=$1
444 shift
445 for v; do eval $m; done
446 }
447
448 add_suffix(){
449 suffix=$1
450 shift
451 for v; do echo ${v}${suffix}; done
452 }
453
454 set_all(){
455 value=$1
456 shift
457 for var in $*; do
458 eval $var=$value
459 done
460 }
461
462 set_weak(){
463 value=$1
464 shift
465 for var; do
466 eval : \${$var:=$value}
467 done
468 }
469
470 sanitize_var_name(){
471 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
472 }
473
474 set_safe(){
475 var=$1
476 shift
477 eval $(sanitize_var_name "$var")='$*'
478 }
479
480 get_safe(){
481 eval echo \$$(sanitize_var_name "$1")
482 }
483
484 pushvar(){
485 for pvar in $*; do
486 eval level=\${${pvar}_level:=0}
487 eval ${pvar}_${level}="\$$pvar"
488 eval ${pvar}_level=$(($level+1))
489 done
490 }
491
492 popvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:-0}
495 test $level = 0 && continue
496 eval level=$(($level-1))
497 eval $pvar="\${${pvar}_${level}}"
498 eval ${pvar}_level=$level
499 eval unset ${pvar}_${level}
500 done
501 }
502
503 enable(){
504 set_all yes $*
505 }
506
507 disable(){
508 set_all no $*
509 }
510
511 enable_weak(){
512 set_weak yes $*
513 }
514
515 disable_weak(){
516 set_weak no $*
517 }
518
519 enable_safe(){
520 for var; do
521 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
522 done
523 }
524
525 disable_safe(){
526 for var; do
527 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 do_enable_deep(){
532 for var; do
533 enabled $var && continue
534 eval sel="\$${var}_select"
535 eval sgs="\$${var}_suggest"
536 pushvar var sgs
537 enable_deep $sel
538 popvar sgs
539 enable_deep_weak $sgs
540 popvar var
541 done
542 }
543
544 enable_deep(){
545 do_enable_deep $*
546 enable $*
547 }
548
549 enable_deep_weak(){
550 for var; do
551 disabled $var && continue
552 pushvar var
553 do_enable_deep $var
554 popvar var
555 enable_weak $var
556 done
557 }
558
559 enabled(){
560 test "${1#!}" = "$1" && op== || op=!=
561 eval test "x\$${1#!}" $op "xyes"
562 }
563
564 disabled(){
565 test "${1#!}" = "$1" && op== || op=!=
566 eval test "x\$${1#!}" $op "xno"
567 }
568
569 enabled_all(){
570 for opt; do
571 enabled $opt || return 1
572 done
573 }
574
575 disabled_all(){
576 for opt; do
577 disabled $opt || return 1
578 done
579 }
580
581 enabled_any(){
582 for opt; do
583 enabled $opt && return 0
584 done
585 }
586
587 disabled_any(){
588 for opt; do
589 disabled $opt && return 0
590 done
591 return 1
592 }
593
594 set_default(){
595 for opt; do
596 eval : \${$opt:=\$${opt}_default}
597 done
598 }
599
600 is_in(){
601 value=$1
602 shift
603 for var in $*; do
604 [ $var = $value ] && return 0
605 done
606 return 1
607 }
608
609 do_check_deps(){
610 for cfg; do
611 cfg="${cfg#!}"
612 enabled ${cfg}_checking && die "Circular dependency for $cfg."
613 disabled ${cfg}_checking && continue
614 enable ${cfg}_checking
615 append allopts $cfg
616
617 eval dep_all="\$${cfg}_deps"
618 eval dep_any="\$${cfg}_deps_any"
619 eval dep_sel="\$${cfg}_select"
620 eval dep_sgs="\$${cfg}_suggest"
621 eval dep_ifa="\$${cfg}_if"
622 eval dep_ifn="\$${cfg}_if_any"
623
624 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
625 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
626 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627
628 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
629 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
630 enabled_all $dep_all || disable $cfg
631 enabled_any $dep_any || disable $cfg
632 disabled_any $dep_sel && disable $cfg
633
634 if enabled $cfg; then
635 enable_deep $dep_sel
636 enable_deep_weak $dep_sgs
637 fi
638
639 disable ${cfg}_checking
640 done
641 }
642
643 check_deps(){
644 unset allopts
645
646 do_check_deps "$@"
647
648 for cfg in $allopts; do
649 enabled $cfg || continue
650 eval dep_extralibs="\$${cfg}_extralibs"
651 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
652 done
653 }
654
655 print_config(){
656 pfx=$1
657 files=$2
658 shift 2
659 map 'eval echo "$v \${$v:-no}"' "$@" |
660 awk "BEGIN { split(\"$files\", files) }
661 {
662 c = \"$pfx\" toupper(\$1);
663 v = \$2;
664 sub(/yes/, 1, v);
665 sub(/no/, 0, v);
666 for (f in files) {
667 file = files[f];
668 if (file ~ /\\.h\$/) {
669 printf(\"#define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.asm\$/) {
671 printf(\"%%define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.mak\$/) {
673 n = -v ? \"\" : \"!\";
674 printf(\"%s%s=yes\\n\", n, c) >>file;
675 }
676 }
677 }"
678 }
679
680 print_enabled(){
681 suf=$1
682 shift
683 for v; do
684 enabled $v && printf "%s\n" ${v%$suf}
685 done
686 }
687
688 append(){
689 var=$1
690 shift
691 eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695 var=$1
696 shift
697 eval "$var=\"$* \$$var\""
698 }
699
700 unique(){
701 var=$1
702 uniq_list=""
703 for tok in $(eval echo \$$var); do
704 uniq_list="$(filter_out $tok $uniq_list) $tok"
705 done
706 eval "$var=\"${uniq_list}\""
707 }
708
709 add_cppflags(){
710 append CPPFLAGS "$@"
711 }
712
713 add_cflags(){
714 append CFLAGS $($cflags_filter "$@")
715 }
716
717 add_asflags(){
718 append ASFLAGS $($asflags_filter "$@")
719 }
720
721 add_objcflags(){
722 append OBJCFLAGS $($objcflags_filter "$@")
723 }
724
725 add_ldflags(){
726 append LDFLAGS $($ldflags_filter "$@")
727 }
728
729 add_ldexeflags(){
730 append LDEXEFLAGS $($ldflags_filter "$@")
731 }
732
733 add_stripflags(){
734 append STRIPFLAGS "$@"
735 }
736
737 add_extralibs(){
738 prepend extralibs $($ldflags_filter "$@")
739 }
740
741 add_host_cppflags(){
742 append host_cppflags "$@"
743 }
744
745 add_host_cflags(){
746 append host_cflags $($host_cflags_filter "$@")
747 }
748
749 add_host_ldflags(){
750 append host_ldflags $($host_ldflags_filter "$@")
751 }
752
753 add_compat(){
754 append compat_objs $1
755 shift
756 map 'add_cppflags -D$v' "$@"
757 }
758
759 check_cmd(){
760 log "$@"
761 "$@" >> $logfile 2>&1
762 }
763
764 cc_o(){
765 eval printf '%s\\n' $CC_O
766 }
767
768 cc_e(){
769 eval printf '%s\\n' $CC_E
770 }
771
772 check_cc(){
773 log check_cc "$@"
774 cat > $TMPC
775 log_file $TMPC
776 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
777 }
778
779 check_objcc(){
780 log check_objcc "$@"
781 cat > $TMPC
782 log_file $TMPC
783 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
784 }
785
786 check_cpp(){
787 log check_cpp "$@"
788 cat > $TMPC
789 log_file $TMPC
790 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
791 }
792
793 as_o(){
794 eval printf '%s\\n' $AS_O
795 }
796
797 check_as(){
798 log check_as "$@"
799 cat > $TMPS
800 log_file $TMPS
801 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
802 }
803
804 check_inline_asm(){
805 log check_inline_asm "$@"
806 name="$1"
807 code="$2"
808 shift 2
809 disable $name
810 check_cc "$@" <<EOF && enable $name
811 void foo(void){ __asm__ volatile($code); }
812 EOF
813 }
814
815 check_insn(){
816 log check_insn "$@"
817 check_inline_asm ${1}_inline "\"$2\""
818 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
819 }
820
821 check_yasm(){
822 log check_yasm "$@"
823 echo "$1" > $TMPS
824 log_file $TMPS
825 shift 1
826 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
827 }
828
829 ld_o(){
830 eval printf '%s\\n' $LD_O
831 }
832
833 check_ld(){
834 log check_ld "$@"
835 flags=$(filter_out '-l*' "$@")
836 libs=$(filter '-l*' "$@")
837 check_cc $($cflags_filter $flags) || return
838 flags=$($ldflags_filter $flags)
839 libs=$($ldflags_filter $libs)
840 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
841 }
842
843 print_include(){
844 hdr=$1
845 test "${hdr%.h}" = "${hdr}" &&
846 echo "#include $hdr" ||
847 echo "#include <$hdr>"
848 }
849
850 check_code(){
851 log check_code "$@"
852 check=$1
853 headers=$2
854 code=$3
855 shift 3
856 {
857 for hdr in $headers; do
858 print_include $hdr
859 done
860 echo "int main(void) { $code; return 0; }"
861 } | check_$check "$@"
862 }
863
864 check_cppflags(){
865 log check_cppflags "$@"
866 check_cc "$@" <<EOF && append CPPFLAGS "$@"
867 int x;
868 EOF
869 }
870
871 test_cflags(){
872 log test_cflags "$@"
873 set -- $($cflags_filter "$@")
874 check_cc "$@" <<EOF
875 int x;
876 EOF
877 }
878
879 check_cflags(){
880 log check_cflags "$@"
881 test_cflags "$@" && add_cflags "$@"
882 }
883
884 test_objcflags(){
885 log test_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_objcc "$@" <<EOF
888 int x;
889 EOF
890 }
891
892 check_objcflags(){
893 log check_cflags "$@"
894 test_objcflags "$@" && add_objcflags "$@"
895 }
896
897 test_ldflags(){
898 log test_ldflags "$@"
899 check_ld "$@" <<EOF
900 int main(void){ return 0; }
901 EOF
902 }
903
904 check_ldflags(){
905 log check_ldflags "$@"
906 test_ldflags "$@" && add_ldflags "$@"
907 }
908
909 test_stripflags(){
910 log test_stripflags "$@"
911 # call check_cc to get a fresh TMPO
912 check_cc <<EOF
913 int main(void) { return 0; }
914 EOF
915 check_cmd $strip $STRIPFLAGS "$@" $TMPO
916 }
917
918 check_stripflags(){
919 log check_stripflags "$@"
920 test_stripflags "$@" && add_stripflags "$@"
921 }
922
923 check_header(){
924 log check_header "$@"
925 header=$1
926 shift
927 disable_safe $header
928 check_cpp "$@" <<EOF && enable_safe $header
929 #include <$header>
930 int x;
931 EOF
932 }
933
934 check_func(){
935 log check_func "$@"
936 func=$1
937 shift
938 disable $func
939 check_ld "$@" <<EOF && enable $func
940 extern int $func();
941 int main(void){ $func(); }
942 EOF
943 }
944
945 check_mathfunc(){
946 log check_mathfunc "$@"
947 func=$1
948 narg=$2
949 shift 2
950 test $narg = 2 && args="f, g" || args="f"
951 disable $func
952 check_ld "$@" <<EOF && enable $func
953 #include <math.h>
954 float foo(float f, float g) { return $func($args); }
955 int main(void){ return 0; }
956 EOF
957 }
958
959 check_func_headers(){
960 log check_func_headers "$@"
961 headers=$1
962 funcs=$2
963 shift 2
964 {
965 for hdr in $headers; do
966 print_include $hdr
967 done
968 for func in $funcs; do
969 echo "long check_$func(void) { return (long) $func; }"
970 done
971 echo "int main(void) { return 0; }"
972 } | check_ld "$@" && enable $funcs && enable_safe $headers
973 }
974
975 check_cpp_condition(){
976 log check_cpp_condition "$@"
977 header=$1
978 condition=$2
979 shift 2
980 check_cpp "$@" <<EOF
981 #include <$header>
982 #if !($condition)
983 #error "unsatisfied condition: $condition"
984 #endif
985 EOF
986 }
987
988 check_lib(){
989 log check_lib "$@"
990 header="$1"
991 func="$2"
992 shift 2
993 check_header $header && check_func $func "$@" && add_extralibs "$@"
994 }
995
996 check_lib2(){
997 log check_lib2 "$@"
998 headers="$1"
999 funcs="$2"
1000 shift 2
1001 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1002 }
1003
1004 check_pkg_config(){
1005 log check_pkg_config "$@"
1006 pkg="$1"
1007 headers="$2"
1008 funcs="$3"
1009 shift 3
1010 check_cmd $pkg_config --exists --print-errors $pkg || return
1011 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1012 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1013 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1014 set_safe "${pkg}_cflags" $pkg_cflags &&
1015 set_safe "${pkg}_libs" $pkg_libs
1016 }
1017
1018 check_exec(){
1019 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1020 }
1021
1022 check_exec_crash(){
1023 code=$(cat)
1024
1025 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1026 # are safe but may not be available everywhere. Thus we use
1027 # raise(SIGTERM) instead. The check is run in a subshell so we
1028 # can redirect the "Terminated" message from the shell. SIGBUS
1029 # is not defined by standard C so it is used conditionally.
1030
1031 (check_exec "$@") >> $logfile 2>&1 <<EOF
1032 #include <signal.h>
1033 static void sighandler(int sig){
1034 raise(SIGTERM);
1035 }
1036 int foo(void){
1037 $code
1038 }
1039 int (*func_ptr)(void) = foo;
1040 int main(void){
1041 signal(SIGILL, sighandler);
1042 signal(SIGFPE, sighandler);
1043 signal(SIGSEGV, sighandler);
1044 #ifdef SIGBUS
1045 signal(SIGBUS, sighandler);
1046 #endif
1047 return func_ptr();
1048 }
1049 EOF
1050 }
1051
1052 check_type(){
1053 log check_type "$@"
1054 headers=$1
1055 type=$2
1056 shift 2
1057 disable_safe "$type"
1058 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1059 }
1060
1061 check_struct(){
1062 log check_struct "$@"
1063 headers=$1
1064 struct=$2
1065 member=$3
1066 shift 3
1067 disable_safe "${struct}_${member}"
1068 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1069 enable_safe "${struct}_${member}"
1070 }
1071
1072 check_builtin(){
1073 log check_builtin "$@"
1074 name=$1
1075 headers=$2
1076 builtin=$3
1077 shift 3
1078 disable "$name"
1079 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1080 }
1081
1082 check_compile_assert(){
1083 log check_compile_assert "$@"
1084 name=$1
1085 headers=$2
1086 condition=$3
1087 shift 3
1088 disable "$name"
1089 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1090 }
1091
1092 require(){
1093 name="$1"
1094 header="$2"
1095 func="$3"
1096 shift 3
1097 check_lib $header $func "$@" || die "ERROR: $name not found"
1098 }
1099
1100 require2(){
1101 name="$1"
1102 headers="$2"
1103 func="$3"
1104 shift 3
1105 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1106 }
1107
1108 require_pkg_config(){
1109 pkg="$1"
1110 check_pkg_config "$@" || die "ERROR: $pkg not found"
1111 add_cflags $(get_safe "${pkg}_cflags")
1112 add_extralibs $(get_safe "${pkg}_libs")
1113 }
1114
1115 hostcc_e(){
1116 eval printf '%s\\n' $HOSTCC_E
1117 }
1118
1119 hostcc_o(){
1120 eval printf '%s\\n' $HOSTCC_O
1121 }
1122
1123 check_host_cc(){
1124 log check_host_cc "$@"
1125 cat > $TMPC
1126 log_file $TMPC
1127 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1128 }
1129
1130 check_host_cpp(){
1131 log check_host_cpp "$@"
1132 cat > $TMPC
1133 log_file $TMPC
1134 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1135 }
1136
1137 check_host_cppflags(){
1138 log check_host_cppflags "$@"
1139 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1140 int x;
1141 EOF
1142 }
1143
1144 check_host_cflags(){
1145 log check_host_cflags "$@"
1146 set -- $($host_cflags_filter "$@")
1147 check_host_cc "$@" <<EOF && append host_cflags "$@"
1148 int x;
1149 EOF
1150 }
1151
1152 check_host_cpp_condition(){
1153 log check_host_cpp_condition "$@"
1154 header=$1
1155 condition=$2
1156 shift 2
1157 check_host_cpp "$@" <<EOF
1158 #include <$header>
1159 #if !($condition)
1160 #error "unsatisfied condition: $condition"
1161 #endif
1162 EOF
1163 }
1164
1165 apply(){
1166 file=$1
1167 shift
1168 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1169 }
1170
1171 cp_if_changed(){
1172 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1173 mkdir -p "$(dirname $2)"
1174 $cp_f "$1" "$2"
1175 }
1176
1177 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1178 # system-dependent things.
1179
1180 AVCODEC_COMPONENTS="
1181 bsfs
1182 decoders
1183 encoders
1184 hwaccels
1185 parsers
1186 "
1187
1188 AVDEVICE_COMPONENTS="
1189 indevs
1190 outdevs
1191 "
1192 AVFILTER_COMPONENTS="
1193 filters
1194 "
1195 AVFORMAT_COMPONENTS="
1196 demuxers
1197 muxers
1198 protocols
1199 "
1200
1201 AVRESAMPLE_COMPONENTS=""
1202 AVUTIL_COMPONENTS=""
1203
1204 COMPONENT_LIST="
1205 $AVCODEC_COMPONENTS
1206 $AVDEVICE_COMPONENTS
1207 $AVFILTER_COMPONENTS
1208 $AVFORMAT_COMPONENTS
1209 $AVRESAMPLE_COMPONENTS
1210 $AVUTIL_COMPONENTS
1211 "
1212
1213 EXAMPLE_LIST="
1214 avcodec_example
1215 filter_audio_example
1216 metadata_example
1217 output_example
1218 qsvdec_example
1219 transcode_aac_example
1220 "
1221
1222 HWACCEL_LIBRARY_LIST="
1223 cuda
1224 d3d11va
1225 dxva2
1226 libmfx
1227 libnpp
1228 mmal
1229 nvenc
1230 omx
1231 vaapi
1232 vda
1233 vdpau
1234 "
1235
1236 EXTERNAL_LIBRARY_LIST="
1237 avisynth
1238 bzlib
1239 frei0r
1240 gnutls
1241 libbs2b
1242 libcdio
1243 libdc1394
1244 libdcadec
1245 libfaac
1246 libfdk_aac
1247 libfontconfig
1248 libfreetype
1249 libgsm
1250 libilbc
1251 libkvazaar
1252 libmp3lame
1253 libopencore_amrnb
1254 libopencore_amrwb
1255 libopencv
1256 libopenh264
1257 libopenjpeg
1258 libopus
1259 libpulse
1260 librtmp
1261 libschroedinger
1262 libsnappy
1263 libspeex
1264 libtheora
1265 libtwolame
1266 libvo_aacenc
1267 libvo_amrwbenc
1268 libvorbis
1269 libvpx
1270 libwavpack
1271 libwebp
1272 libx264
1273 libx265
1274 libxavs
1275 libxcb
1276 libxcb_shm
1277 libxcb_xfixes
1278 libxvid
1279 openssl
1280 x11grab
1281 zlib
1282 "
1283
1284 FEATURE_LIST="
1285 gray
1286 hardcoded_tables
1287 omx_rpi
1288 runtime_cpudetect
1289 safe_bitstream_reader
1290 shared
1291 small
1292 sram
1293 static
1294 swscale_alpha
1295 "
1296
1297 LIBRARY_LIST="
1298 avcodec
1299 avdevice
1300 avfilter
1301 avformat
1302 avresample
1303 avutil
1304 swscale
1305 "
1306
1307 LICENSE_LIST="
1308 gpl
1309 nonfree
1310 version3
1311 "
1312
1313 PROGRAM_LIST="
1314 avconv
1315 avplay
1316 avprobe
1317 "
1318
1319 SUBSYSTEM_LIST="
1320 dct
1321 doc
1322 error_resilience
1323 faan
1324 fft
1325 lsp
1326 lzo
1327 mdct
1328 network
1329 rdft
1330 "
1331
1332 CONFIG_LIST="
1333 $COMPONENT_LIST
1334 $EXAMPLE_LIST
1335 $EXTERNAL_LIBRARY_LIST
1336 $HWACCEL_LIBRARY_LIST
1337 $FEATURE_LIST
1338 $LICENSE_LIST
1339 $LIBRARY_LIST
1340 $PROGRAM_LIST
1341 $SUBSYSTEM_LIST
1342 memalign_hack
1343 neon_clobber_test
1344 pic
1345 pod2man
1346 texi2html
1347 thumb
1348 valgrind_backtrace
1349 xmm_clobber_test
1350 "
1351
1352 THREADS_LIST="
1353 pthreads
1354 w32threads
1355 "
1356
1357 ATOMICS_LIST="
1358 atomics_gcc
1359 atomics_suncc
1360 atomics_win32
1361 "
1362
1363 ARCH_LIST="
1364 aarch64
1365 alpha
1366 arm
1367 avr32
1368 avr32_ap
1369 avr32_uc
1370 bfin
1371 ia64
1372 m68k
1373 mips
1374 mips64
1375 parisc
1376 ppc
1377 ppc64
1378 s390
1379 sh4
1380 sparc
1381 sparc64
1382 tilegx
1383 tilepro
1384 tomi
1385 x86
1386 x86_32
1387 x86_64
1388 "
1389
1390 ARCH_EXT_LIST_ARM="
1391 armv5te
1392 armv6
1393 armv6t2
1394 armv8
1395 neon
1396 vfp
1397 vfpv3
1398 "
1399
1400 ARCH_EXT_LIST_X86_SIMD="
1401 amd3dnow
1402 amd3dnowext
1403 avx
1404 avx2
1405 fma3
1406 fma4
1407 mmx
1408 mmxext
1409 sse
1410 sse2
1411 sse3
1412 sse4
1413 sse42
1414 ssse3
1415 xop
1416 "
1417
1418 ARCH_EXT_LIST_PPC="
1419 altivec
1420 dcbzl
1421 ldbrx
1422 power8
1423 ppc4xx
1424 vsx
1425 "
1426
1427 ARCH_EXT_LIST_X86="
1428 $ARCH_EXT_LIST_X86_SIMD
1429 cpunop
1430 i686
1431 "
1432
1433 ARCH_EXT_LIST_MIPS="
1434 loongson
1435 mips32r1
1436 mips64r1
1437 mips32r2
1438 mips64r2
1439 mips32r6
1440 mips64r6
1441 "
1442
1443 ARCH_EXT_LIST="
1444 $ARCH_EXT_LIST_ARM
1445 $ARCH_EXT_LIST_MIPS
1446 $ARCH_EXT_LIST_PPC
1447 $ARCH_EXT_LIST_X86
1448 vis
1449 "
1450
1451 ARCH_FEATURES="
1452 aligned_stack
1453 fast_64bit
1454 fast_clz
1455 fast_cmov
1456 local_aligned_8
1457 local_aligned_16
1458 simd_align_16
1459 "
1460
1461 BUILTIN_LIST="
1462 atomic_cas_ptr
1463 machine_rw_barrier
1464 MemoryBarrier
1465 mm_empty
1466 rdtsc
1467 sem_timedwait
1468 sync_val_compare_and_swap
1469 "
1470 HAVE_LIST_CMDLINE="
1471 inline_asm
1472 symver
1473 yasm
1474 "
1475
1476 HAVE_LIST_PUB="
1477 bigendian
1478 fast_unaligned
1479 "
1480
1481 HEADERS_LIST="
1482 AVFoundation_AVFoundation_h
1483 alsa_asoundlib_h
1484 altivec_h
1485 arpa_inet_h
1486 cdio_paranoia_h
1487 cdio_paranoia_paranoia_h
1488 dispatch_dispatch_h
1489 dev_bktr_ioctl_bt848_h
1490 dev_bktr_ioctl_meteor_h
1491 dev_ic_bt8xx_h
1492 dev_video_bktr_ioctl_bt848_h
1493 dev_video_meteor_ioctl_meteor_h
1494 direct_h
1495 dlfcn_h
1496 d3d11_h
1497 dxva_h
1498 gsm_h
1499 io_h
1500 mach_mach_time_h
1501 machine_ioctl_bt848_h
1502 machine_ioctl_meteor_h
1503 malloc_h
1504 poll_h
1505 sndio_h
1506 soundcard_h
1507 sys_mman_h
1508 sys_param_h
1509 sys_resource_h
1510 sys_select_h
1511 sys_soundcard_h
1512 sys_time_h
1513 sys_un_h
1514 sys_videoio_h
1515 unistd_h
1516 valgrind_valgrind_h
1517 windows_h
1518 winsock2_h
1519 "
1520
1521 INTRINSICS_LIST="
1522 intrinsics_neon
1523 "
1524
1525 MATH_FUNCS="
1526 atanf
1527 atan2f
1528 cbrtf
1529 cosf
1530 exp2
1531 exp2f
1532 expf
1533 isinf
1534 isnan
1535 ldexpf
1536 llrint
1537 llrintf
1538 log2
1539 log2f
1540 log10f
1541 lrint
1542 lrintf
1543 powf
1544 rint
1545 round
1546 roundf
1547 sinf
1548 trunc
1549 truncf
1550 "
1551
1552 SYSTEM_FUNCS="
1553 aligned_malloc
1554 clock_gettime
1555 closesocket
1556 CommandLineToArgvW
1557 CoTaskMemFree
1558 CryptGenRandom
1559 dlopen
1560 fcntl
1561 flt_lim
1562 fork
1563 getaddrinfo
1564 gethrtime
1565 getopt
1566 GetProcessAffinityMask
1567 GetProcessMemoryInfo
1568 GetProcessTimes
1569 getrusage
1570 GetSystemTimeAsFileTime
1571 gettimeofday
1572 gmtime_r
1573 inet_aton
1574 isatty
1575 jack_port_get_latency_range
1576 LoadLibrary
1577 localtime_r
1578 mach_absolute_time
1579 MapViewOfFile
1580 memalign
1581 mkstemp
1582 mmap
1583 mprotect
1584 nanosleep
1585 posix_memalign
1586 sched_getaffinity
1587 SetConsoleTextAttribute
1588 setmode
1589 setrlimit
1590 Sleep
1591 strerror_r
1592 sysconf
1593 sysctl
1594 usleep
1595 VirtualAlloc
1596 "
1597
1598 TOOLCHAIN_FEATURES="
1599 as_dn_directive
1600 as_func
1601 as_object_arch
1602 asm_mod_q
1603 attribute_may_alias
1604 attribute_packed
1605 ebp_available
1606 ebx_available
1607 gnu_as
1608 ibm_asm
1609 inline_asm_labels
1610 pragma_deprecated
1611 symver_asm_label
1612 symver_gnu_asm
1613 vfp_args
1614 xform_asm
1615 xmm_clobbers
1616 "
1617
1618 TYPES_LIST="
1619 CONDITION_VARIABLE_Ptr
1620 socklen_t
1621 struct_addrinfo
1622 struct_group_source_req
1623 struct_ip_mreq_source
1624 struct_ipv6_mreq
1625 struct_pollfd
1626 struct_rusage_ru_maxrss
1627 struct_sockaddr_in6
1628 struct_sockaddr_sa_len
1629 struct_sockaddr_storage
1630 struct_v4l2_frmivalenum_discrete
1631 "
1632
1633 HAVE_LIST="
1634 $ARCH_EXT_LIST
1635 $(add_suffix _external $ARCH_EXT_LIST)
1636 $(add_suffix _inline $ARCH_EXT_LIST)
1637 $ARCH_FEATURES
1638 $ATOMICS_LIST
1639 $BUILTIN_LIST
1640 $HAVE_LIST_CMDLINE
1641 $HAVE_LIST_PUB
1642 $HEADERS_LIST
1643 $INTRINSICS_LIST
1644 $MATH_FUNCS
1645 $SYSTEM_FUNCS
1646 $THREADS_LIST
1647 $TOOLCHAIN_FEATURES
1648 $TYPES_LIST
1649 atomics_native
1650 dos_paths
1651 dxva2_lib
1652 libc_msvcrt
1653 libdc1394_1
1654 libdc1394_2
1655 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1656 sdl
1657 section_data_rel_ro
1658 threads
1659 vaapi_drm
1660 vaapi_x11
1661 vdpau_x11
1662 xlib
1663 "
1664
1665 # options emitted with CONFIG_ prefix but not available on the command line
1666 CONFIG_EXTRA="
1667 aandcttables
1668 ac3dsp
1669 audio_frame_queue
1670 audiodsp
1671 blockdsp
1672 bswapdsp
1673 cabac
1674 dirac_parse
1675 dvprofile
1676 faandct
1677 faanidct
1678 fdctdsp
1679 flacdsp
1680 fmtconvert
1681 g722dsp
1682 gcrypt
1683 gmp
1684 golomb
1685 gplv3
1686 h263dsp
1687 h264chroma
1688 h264dsp
1689 h264pred
1690 h264qpel
1691 hpeldsp
1692 huffman
1693 huffyuvdsp
1694 huffyuvencdsp
1695 idctdsp
1696 iirfilter
1697 imdct15
1698 intrax8
1699 iso_media
1700 ividsp
1701 jpegtables
1702 libx262
1703 lgplv3
1704 lpc
1705 lzf
1706 me_cmp
1707 mpeg_er
1708 mpegaudio
1709 mpegaudiodsp
1710 mpegvideo
1711 mpegvideoenc
1712 mss34dsp
1713 pixblockdsp
1714 qpeldsp
1715 qsv
1716 qsvdec
1717 qsvenc
1718 rangecoder
1719 riffdec
1720 riffenc
1721 rtpdec
1722 rtpenc_chain
1723 rv34dsp
1724 sinewin
1725 snappy
1726 srtp
1727 startcode
1728 texturedsp
1729 texturedspenc
1730 tpeldsp
1731 vaapi_encode
1732 vc1dsp
1733 videodsp
1734 vp3dsp
1735 vp56dsp
1736 vp8dsp
1737 wma_freqs
1738 wmv2dsp
1739 "
1740
1741 CMDLINE_SELECT="
1742 $ARCH_EXT_LIST
1743 $CONFIG_LIST
1744 $HAVE_LIST_CMDLINE
1745 $THREADS_LIST
1746 asm
1747 cross_compile
1748 debug
1749 extra_warnings
1750 logging
1751 lto
1752 optimizations
1753 rpath
1754 "
1755
1756 PATHS_LIST="
1757 bindir
1758 datadir
1759 docdir
1760 incdir
1761 libdir
1762 mandir
1763 prefix
1764 shlibdir
1765 "
1766
1767 CMDLINE_SET="
1768 $PATHS_LIST
1769 ar
1770 arch
1771 as
1772 build_suffix
1773 cc
1774 objcc
1775 cpu
1776 cross_prefix
1777 custom_allocator
1778 dep_cc
1779 env
1780 extra_version
1781 host_cc
1782 host_cflags
1783 host_ld
1784 host_ldflags
1785 host_libs
1786 host_os
1787 ld
1788 logfile
1789 malloc_prefix
1790 nm
1791 optflags
1792 pkg_config
1793 pkg_config_flags
1794 random_seed
1795 samples
1796 sysinclude
1797 sysroot
1798 target_exec
1799 target_os
1800 target_path
1801 target_samples
1802 toolchain
1803 "
1804
1805 CMDLINE_APPEND="
1806 extra_cflags
1807 extra_objcflags
1808 host_cppflags
1809 "
1810
1811 # code dependency declarations
1812
1813 # architecture extensions
1814
1815 armv5te_deps="arm"
1816 armv6_deps="arm"
1817 armv6t2_deps="arm"
1818 armv8_deps="aarch64"
1819 neon_deps_any="aarch64 arm"
1820 intrinsics_neon_deps="neon"
1821 vfp_deps_any="aarch64 arm"
1822 vfpv3_deps="vfp"
1823
1824 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1825
1826 altivec_deps="ppc"
1827 ppc4xx_deps="ppc"
1828 vsx_deps="altivec"
1829 power8_deps="vsx"
1830
1831 cpunop_deps="i686"
1832 x86_64_select="i686"
1833 x86_64_suggest="fast_cmov"
1834
1835 amd3dnow_deps="mmx"
1836 amd3dnowext_deps="amd3dnow"
1837 i686_deps="x86"
1838 mmx_deps="x86"
1839 mmxext_deps="mmx"
1840 sse_deps="mmxext"
1841 sse2_deps="sse"
1842 sse3_deps="sse2"
1843 ssse3_deps="sse3"
1844 sse4_deps="ssse3"
1845 sse42_deps="sse4"
1846 avx_deps="sse42"
1847 xop_deps="avx"
1848 fma3_deps="avx"
1849 fma4_deps="avx"
1850 avx2_deps="avx"
1851
1852 mmx_external_deps="yasm"
1853 mmx_inline_deps="inline_asm"
1854 mmx_suggest="mmx_external mmx_inline"
1855
1856 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1857 eval dep=\$${ext}_deps
1858 eval ${ext}_external_deps='"${dep}_external"'
1859 eval ${ext}_inline_deps='"${dep}_inline"'
1860 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1861 done
1862
1863 aligned_stack_if_any="aarch64 ppc x86"
1864 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1865 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1866 fast_unaligned_if_any="aarch64 ppc x86"
1867 simd_align_16_if_any="altivec neon sse"
1868
1869 # system capabilities
1870 symver_if_any="symver_asm_label symver_gnu_asm"
1871 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1872
1873 # threading support
1874 atomics_gcc_if="sync_val_compare_and_swap"
1875 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1876 atomics_win32_if="MemoryBarrier"
1877 atomics_native_if_any="$ATOMICS_LIST"
1878 w32threads_deps="atomics_native"
1879 threads_if_any="$THREADS_LIST"
1880
1881 # subsystems
1882 dct_select="rdft"
1883 dirac_parse_select="golomb"
1884 error_resilience_select="me_cmp"
1885 faandct_deps="faan fdctdsp"
1886 faanidct_deps="faan idctdsp"
1887 h264dsp_select="startcode"
1888 intrax8_select="blockdsp idctdsp"
1889 mdct_select="fft"
1890 rdft_select="fft"
1891 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1892 mpeg_er_select="error_resilience"
1893 mpegaudio_select="mpegaudiodsp"
1894 mpegaudiodsp_select="dct"
1895 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1896 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1897 vc1dsp_select="h264chroma qpeldsp startcode"
1898
1899 # decoders / encoders
1900 aac_decoder_select="imdct15 mdct sinewin"
1901 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1902 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1903 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1904 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1905 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1906 adpcm_g722_decoder_select="g722dsp"
1907 adpcm_g722_encoder_select="g722dsp"
1908 aic_decoder_select="golomb idctdsp"
1909 alac_encoder_select="lpc"
1910 als_decoder_select="bswapdsp"
1911 amrnb_decoder_select="lsp"
1912 amrwb_decoder_select="lsp"
1913 amv_decoder_select="sp5x_decoder"
1914 ape_decoder_select="bswapdsp"
1915 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1916 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1917 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1918 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1919 atrac1_decoder_select="mdct sinewin"
1920 atrac3_decoder_select="mdct"
1921 atrac3p_decoder_select="mdct sinewin"
1922 bink_decoder_select="blockdsp hpeldsp"
1923 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1924 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1925 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1926 cllc_decoder_select="bswapdsp"
1927 comfortnoise_encoder_select="lpc"
1928 cook_decoder_select="audiodsp mdct sinewin"
1929 cscd_decoder_select="lzo"
1930 cscd_decoder_suggest="zlib"
1931 dca_decoder_select="fmtconvert mdct"
1932 dds_decoder_select="texturedsp"
1933 dnxhd_decoder_select="blockdsp idctdsp"
1934 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1935 dvvideo_decoder_select="dvprofile idctdsp"
1936 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1937 dxa_decoder_deps="zlib"
1938 dxv_decoder_select="lzf texturedsp"
1939 eac3_decoder_select="ac3_decoder"
1940 eac3_encoder_select="ac3_encoder"
1941 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1942 eatgq_decoder_select="aandcttables idctdsp"
1943 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1944 exr_decoder_deps="zlib"
1945 ffv1_decoder_select="golomb rangecoder"
1946 ffv1_encoder_select="rangecoder"
1947 ffvhuff_decoder_select="huffyuv_decoder"
1948 ffvhuff_encoder_select="huffyuv_encoder"
1949 fic_decoder_select="golomb"
1950 flac_decoder_select="flacdsp golomb"
1951 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1952 flashsv_decoder_deps="zlib"
1953 flashsv_encoder_deps="zlib"
1954 flashsv2_decoder_deps="zlib"
1955 flv_decoder_select="h263_decoder"
1956 flv_encoder_select="h263_encoder"
1957 fourxm_decoder_select="blockdsp bswapdsp"
1958 fraps_decoder_select="bswapdsp huffman"
1959 g2m_decoder_deps="zlib"
1960 g2m_decoder_select="blockdsp idctdsp jpegtables"
1961 h261_decoder_select="mpeg_er mpegvideo"
1962 h261_encoder_select="aandcttables mpegvideoenc"
1963 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1964 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1965 h263i_decoder_select="h263_decoder"
1966 h263p_encoder_select="h263_encoder"
1967 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1968 h264_decoder_suggest="error_resilience"
1969 hap_decoder_select="snappy texturedsp"
1970 hap_encoder_deps="libsnappy"
1971 hap_encoder_select="texturedspenc"
1972 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1973 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1974 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1975 iac_decoder_select="imc_decoder"
1976 imc_decoder_select="bswapdsp fft mdct sinewin"
1977 indeo3_decoder_select="hpeldsp"
1978 indeo4_decoder_select="ividsp"
1979 indeo5_decoder_select="ividsp"
1980 interplay_video_decoder_select="hpeldsp"
1981 jpegls_decoder_select="golomb mjpeg_decoder"
1982 jpegls_encoder_select="golomb"
1983 jv_decoder_select="blockdsp"
1984 lagarith_decoder_select="huffyuvdsp"
1985 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1986 loco_decoder_select="golomb"
1987 magicyuv_decoder_select="huffyuvdsp"
1988 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1989 metasound_decoder_select="lsp mdct sinewin"
1990 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1991 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1992 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1993 mjpegb_decoder_select="mjpeg_decoder"
1994 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
1995 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
1996 mlp_decoder_select="mlp_parser"
1997 motionpixels_decoder_select="bswapdsp"
1998 mp1_decoder_select="mpegaudio"
1999 mp1float_decoder_select="mpegaudio"
2000 mp2_decoder_select="mpegaudio"
2001 mp2float_decoder_select="mpegaudio"
2002 mp3_decoder_select="mpegaudio"
2003 mp3adu_decoder_select="mpegaudio"
2004 mp3adufloat_decoder_select="mpegaudio"
2005 mp3float_decoder_select="mpegaudio"
2006 mp3on4_decoder_select="mpegaudio"
2007 mp3on4float_decoder_select="mpegaudio"
2008 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2009 mpc8_decoder_select="mpegaudiodsp"
2010 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2011 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2012 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2013 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2014 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2015 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2016 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2017 mpeg4_encoder_select="h263_encoder"
2018 msa1_decoder_select="mss34dsp"
2019 msmpeg4v1_decoder_select="h263_decoder"
2020 msmpeg4v2_decoder_select="h263_decoder"
2021 msmpeg4v2_encoder_select="h263_encoder"
2022 msmpeg4v3_decoder_select="h263_decoder"
2023 msmpeg4v3_encoder_select="h263_encoder"
2024 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2025 mts2_decoder_select="mss34dsp"
2026 mxpeg_decoder_select="mjpeg_decoder"
2027 nellymoser_decoder_select="mdct sinewin"
2028 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2029 nuv_decoder_select="idctdsp lzo"
2030 on2avc_decoder_select="mdct"
2031 opus_decoder_deps="avresample"
2032 opus_decoder_select="imdct15"
2033 png_decoder_deps="zlib"
2034 png_encoder_deps="zlib"
2035 png_encoder_select="huffyuvencdsp"
2036 prores_decoder_select="idctdsp"
2037 prores_encoder_select="fdctdsp"
2038 qcelp_decoder_select="lsp"
2039 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2040 ra_144_encoder_select="audio_frame_queue lpc"
2041 ralf_decoder_select="golomb"
2042 rscc_decoder_deps="zlib"
2043 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2044 rv10_encoder_select="h263_encoder"
2045 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2046 rv20_encoder_select="h263_encoder"
2047 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2048 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2049 screenpresso_decoder_deps="zlib"
2050 shorten_decoder_select="golomb"
2051 sipr_decoder_select="lsp"
2052 sp5x_decoder_select="mjpeg_decoder"
2053 svq1_decoder_select="hpeldsp"
2054 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2055 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2056 svq3_decoder_suggest="zlib"
2057 tak_decoder_select="audiodsp"
2058 tdsc_decoder_deps="zlib"
2059 tdsc_decoder_select="mjpeg_decoder"
2060 theora_decoder_select="vp3_decoder"
2061 thp_decoder_select="mjpeg_decoder"
2062 tiff_decoder_suggest="zlib"
2063 tiff_encoder_suggest="zlib"
2064 truehd_decoder_select="mlp_decoder"
2065 truemotion2_decoder_select="bswapdsp"
2066 truespeech_decoder_select="bswapdsp"
2067 tscc_decoder_deps="zlib"
2068 txd_decoder_select="texturedsp"
2069 twinvq_decoder_select="mdct lsp sinewin"
2070 utvideo_decoder_select="bswapdsp"
2071 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2072 vble_decoder_select="huffyuvdsp"
2073 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2074 vc1image_decoder_select="vc1_decoder"
2075 vorbis_decoder_select="mdct"
2076 vorbis_encoder_select="mdct"
2077 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2078 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2079 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2080 vp6a_decoder_select="vp6_decoder"
2081 vp6f_decoder_select="vp6_decoder"
2082 vp7_decoder_select="h264pred videodsp vp8dsp"
2083 vp8_decoder_select="h264pred videodsp vp8dsp"
2084 vp9_decoder_select="videodsp"
2085 webp_decoder_select="vp8_decoder"
2086 wmapro_decoder_select="mdct sinewin wma_freqs"
2087 wmav1_decoder_select="mdct sinewin wma_freqs"
2088 wmav1_encoder_select="mdct sinewin wma_freqs"
2089 wmav2_decoder_select="mdct sinewin wma_freqs"
2090 wmav2_encoder_select="mdct sinewin wma_freqs"
2091 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2092 wmv1_decoder_select="h263_decoder"
2093 wmv1_encoder_select="h263_encoder"
2094 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2095 wmv2_encoder_select="h263_encoder wmv2dsp"
2096 wmv3_decoder_select="vc1_decoder"
2097 wmv3image_decoder_select="wmv3_decoder"
2098 zerocodec_decoder_deps="zlib"
2099 zlib_decoder_deps="zlib"
2100 zlib_encoder_deps="zlib"
2101 zmbv_decoder_deps="zlib"
2102 zmbv_encoder_deps="zlib"
2103
2104 # hardware accelerators
2105 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2106 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2107 vaapi_deps="va_va_h"
2108 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2109 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2110 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2111
2112 h263_vaapi_hwaccel_deps="vaapi"
2113 h263_vaapi_hwaccel_select="h263_decoder"
2114 h264_d3d11va_hwaccel_deps="d3d11va"
2115 h264_d3d11va_hwaccel_select="h264_decoder"
2116 h264_dxva2_hwaccel_deps="dxva2"
2117 h264_dxva2_hwaccel_select="h264_decoder"
2118 h264_mmal_decoder_deps="mmal"
2119 h264_mmal_decoder_select="mmal"
2120 h264_mmal_hwaccel_deps="mmal"
2121 h264_omx_encoder_deps="omx"
2122 h264_qsv_hwaccel_deps="libmfx"
2123 h264_vaapi_hwaccel_deps="vaapi"
2124 h264_vaapi_hwaccel_select="h264_decoder"
2125 h264_vda_hwaccel_deps="vda"
2126 h264_vda_hwaccel_select="h264_decoder"
2127 h264_vda_old_hwaccel_deps="vda"
2128 h264_vda_old_hwaccel_select="h264_decoder"
2129 h264_vdpau_hwaccel_deps="vdpau"
2130 h264_vdpau_hwaccel_select="h264_decoder"
2131 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2132 hevc_d3d11va_hwaccel_select="hevc_decoder"
2133 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2134 hevc_dxva2_hwaccel_select="hevc_decoder"
2135 hevc_qsv_hwaccel_deps="libmfx"
2136 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2137 hevc_vdpau_hwaccel_select="hevc_decoder"
2138 mpeg1_vdpau_hwaccel_deps="vdpau"
2139 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2140 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2141 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2142 mpeg2_dxva2_hwaccel_deps="dxva2"
2143 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2144 mpeg2_mmal_decoder_deps="mmal"
2145 mpeg2_mmal_decoder_select="mmal"
2146 mpeg2_mmal_hwaccel_deps="mmal"
2147 mpeg2_qsv_hwaccel_deps="libmfx"
2148 mpeg2_vaapi_hwaccel_deps="vaapi"
2149 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2150 mpeg2_vdpau_hwaccel_deps="vdpau"
2151 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2152 mpeg4_omx_encoder_deps="omx"
2153 mpeg4_vaapi_hwaccel_deps="vaapi"
2154 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2155 mpeg4_vdpau_hwaccel_deps="vdpau"
2156 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2157 vc1_d3d11va_hwaccel_deps="d3d11va"
2158 vc1_d3d11va_hwaccel_select="vc1_decoder"
2159 vc1_dxva2_hwaccel_deps="dxva2"
2160 vc1_dxva2_hwaccel_select="vc1_decoder"
2161 vc1_mmal_decoder_deps="mmal"
2162 vc1_mmal_decoder_select="mmal"
2163 vc1_mmal_hwaccel_deps="mmal"
2164 vc1_vaapi_hwaccel_deps="vaapi"
2165 vc1_vaapi_hwaccel_select="vc1_decoder"
2166 vc1_vdpau_hwaccel_deps="vdpau"
2167 vc1_vdpau_hwaccel_select="vc1_decoder"
2168 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2169 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2170 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2171 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2172
2173 # hardware-accelerated codecs
2174 nvenc_deps_any="dlopen LoadLibrary"
2175 nvenc_extralibs='$ldl'
2176 omx_deps="dlopen pthreads"
2177 omx_extralibs='$ldl'
2178 qsvdec_select="qsv"
2179 qsvenc_select="qsv"
2180 vaapi_encode_deps="vaapi"
2181
2182 hwupload_cuda_filter_deps="cuda"
2183 scale_npp_filter_deps="cuda libnpp"
2184
2185 h264_nvenc_encoder_deps="nvenc"
2186 h264_qsv_decoder_deps="libmfx"
2187 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2188 h264_qsv_encoder_deps="libmfx"
2189 h264_qsv_encoder_select="qsvenc"
2190 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2191 h264_vaapi_encoder_select="vaapi_encode golomb"
2192
2193 hevc_nvenc_encoder_deps="nvenc"
2194 hevc_qsv_decoder_deps="libmfx"
2195 hevc_qsv_encoder_deps="libmfx"
2196 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2197 hevc_qsv_encoder_select="qsvenc"
2198 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2199 hevc_vaapi_encoder_select="vaapi_encode golomb"
2200 mpeg2_qsv_decoder_deps="libmfx"
2201 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2202 mpeg2_qsv_encoder_deps="libmfx"
2203 mpeg2_qsv_encoder_select="qsvenc"
2204
2205 nvenc_h264_encoder_deps="nvenc"
2206 nvenc_hevc_encoder_deps="nvenc"
2207
2208 # parsers
2209 h264_parser_select="golomb h264dsp"
2210 hevc_parser_select="golomb"
2211 mpegvideo_parser_select="mpegvideo"
2212 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2213 vc1_parser_select="vc1dsp"
2214
2215 # bitstream_filters
2216 mjpeg2jpeg_bsf_select="jpegtables"
2217
2218 # external libraries
2219 libdcadec_decoder_deps="libdcadec"
2220 libfaac_encoder_deps="libfaac"
2221 libfaac_encoder_select="audio_frame_queue"
2222 libfdk_aac_decoder_deps="libfdk_aac"
2223 libfdk_aac_encoder_deps="libfdk_aac"
2224 libfdk_aac_encoder_select="audio_frame_queue"
2225 libgsm_decoder_deps="libgsm"
2226 libgsm_encoder_deps="libgsm"
2227 libgsm_ms_decoder_deps="libgsm"
2228 libgsm_ms_encoder_deps="libgsm"
2229 libilbc_decoder_deps="libilbc"
2230 libilbc_encoder_deps="libilbc"
2231 libkvazaar_encoder_deps="libkvazaar"
2232 libmp3lame_encoder_deps="libmp3lame"
2233 libmp3lame_encoder_select="audio_frame_queue"
2234 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2235 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2236 libopencore_amrnb_encoder_select="audio_frame_queue"
2237 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2238 libopenh264_encoder_deps="libopenh264"
2239 libopenjpeg_decoder_deps="libopenjpeg"
2240 libopenjpeg_encoder_deps="libopenjpeg"
2241 libopus_decoder_deps="libopus"
2242 libopus_encoder_deps="libopus"
2243 libopus_encoder_select="audio_frame_queue"
2244 libschroedinger_decoder_deps="libschroedinger"
2245 libschroedinger_encoder_deps="libschroedinger"
2246 libspeex_decoder_deps="libspeex"
2247 libspeex_encoder_deps="libspeex"
2248 libspeex_encoder_select="audio_frame_queue"
2249 libtheora_encoder_deps="libtheora"
2250 libtwolame_encoder_deps="libtwolame"
2251 libvo_aacenc_encoder_deps="libvo_aacenc"
2252 libvo_aacenc_encoder_select="audio_frame_queue"
2253 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2254 libvorbis_encoder_deps="libvorbis"
2255 libvorbis_encoder_select="audio_frame_queue"
2256 libvpx_vp8_decoder_deps="libvpx"
2257 libvpx_vp8_encoder_deps="libvpx"
2258 libvpx_vp9_decoder_deps="libvpx"
2259 libvpx_vp9_encoder_deps="libvpx"
2260 libwavpack_encoder_deps="libwavpack"
2261 libwebp_encoder_deps="libwebp"
2262 libx262_encoder_deps="libx262"
2263 libx264_encoder_deps="libx264"
2264 libx265_encoder_deps="libx265"
2265 libxavs_encoder_deps="libxavs"
2266 libxvid_encoder_deps="libxvid"
2267
2268 # demuxers / muxers
2269 ac3_demuxer_select="ac3_parser"
2270 asf_demuxer_select="riffdec"
2271 asf_muxer_select="riffenc"
2272 asf_stream_muxer_select="asf_muxer"
2273 avi_demuxer_select="iso_media riffdec"
2274 avi_muxer_select="riffenc"
2275 avisynth_demuxer_deps="avisynth"
2276 avisynth_demuxer_select="riffdec"
2277 caf_demuxer_select="iso_media riffdec"
2278 dash_muxer_select="mp4_muxer"
2279 dirac_demuxer_select="dirac_parser"
2280 dv_demuxer_select="dvprofile"
2281 dv_muxer_select="dvprofile"
2282 dxa_demuxer_select="riffdec"
2283 eac3_demuxer_select="ac3_parser"
2284 f4v_muxer_select="mov_muxer"
2285 flac_demuxer_select="flac_parser"
2286 hds_muxer_select="flv_muxer"
2287 hls_muxer_select="mpegts_muxer"
2288 ipod_muxer_select="mov_muxer"
2289 ismv_muxer_select="mov_muxer"
2290 matroska_audio_muxer_select="matroska_muxer"
2291 matroska_demuxer_select="iso_media riffdec"
2292 matroska_demuxer_suggest="bzlib lzo zlib"
2293 matroska_muxer_select="iso_media riffenc"
2294 mmf_muxer_select="riffenc"
2295 mov_demuxer_select="iso_media riffdec"
2296 mov_demuxer_suggest="zlib"
2297 mov_muxer_select="iso_media riffenc rtpenc_chain"
2298 mp3_demuxer_select="mpegaudio_parser"
2299 mp4_muxer_select="mov_muxer"
2300 mpegts_demuxer_select="iso_media"
2301 mpegts_muxer_select="adts_muxer latm_muxer"
2302 mpegtsraw_demuxer_select="mpegts_demuxer"
2303 mxf_d10_muxer_select="mxf_muxer"
2304 nut_muxer_select="riffenc"
2305 nuv_demuxer_select="riffdec"
2306 oga_muxer_select="ogg_muxer"
2307 ogg_demuxer_select="dirac_parse"
2308 opus_muxer_select="ogg_muxer"
2309 psp_muxer_select="mov_muxer"
2310 rtp_demuxer_select="sdp_demuxer"
2311 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2312 rtsp_demuxer_select="http_protocol rtpdec"
2313 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2314 sap_demuxer_select="sdp_demuxer"
2315 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2316 sdp_demuxer_select="rtpdec"
2317 smoothstreaming_muxer_select="ismv_muxer"
2318 spdif_muxer_select="aac_parser"
2319 spx_muxer_select="ogg_muxer"
2320 swf_demuxer_suggest="zlib"
2321 tak_demuxer_select="tak_parser"
2322 tg2_muxer_select="mov_muxer"
2323 tgp_muxer_select="mov_muxer"
2324 w64_demuxer_select="wav_demuxer"
2325 wav_demuxer_select="riffdec"
2326 wav_muxer_select="riffenc"
2327 webm_muxer_select="iso_media riffenc"
2328 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2329 wtv_demuxer_select="mpegts_demuxer riffdec"
2330 xmv_demuxer_select="riffdec"
2331 xwma_demuxer_select="riffdec"
2332
2333 # indevs / outdevs
2334 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2335 alsa_outdev_deps="alsa_asoundlib_h"
2336 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2337 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2338 dv1394_indev_deps="dv1394"
2339 dv1394_indev_select="dv_demuxer"
2340 fbdev_indev_deps="linux_fb_h"
2341 jack_indev_deps="jack_jack_h"
2342 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2343 libcdio_indev_deps="libcdio"
2344 libdc1394_indev_deps="libdc1394"
2345 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2346 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2347 pulse_indev_deps="libpulse"
2348 sndio_indev_deps="sndio_h"
2349 sndio_outdev_deps="sndio_h"
2350 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2351 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2352 vfwcap_indev_extralibs="-lavicap32"
2353 x11grab_indev_deps="x11grab"
2354 x11grab_xcb_indev_deps="libxcb"
2355
2356 # protocols
2357 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2358 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2359 ffrtmpcrypt_protocol_select="tcp_protocol"
2360 ffrtmphttp_protocol_deps="!librtmp_protocol"
2361 ffrtmphttp_protocol_select="http_protocol"
2362 gopher_protocol_select="network"
2363 http_protocol_select="tcp_protocol"
2364 httpproxy_protocol_select="tcp_protocol"
2365 https_protocol_select="tls_protocol"
2366 icecast_protocol_select="http_protocol"
2367 librtmp_protocol_deps="librtmp"
2368 librtmpe_protocol_deps="librtmp"
2369 librtmps_protocol_deps="librtmp"
2370 librtmpt_protocol_deps="librtmp"
2371 librtmpte_protocol_deps="librtmp"
2372 mmsh_protocol_select="http_protocol"
2373 mmst_protocol_select="network"
2374 rtmp_protocol_deps="!librtmp_protocol"
2375 rtmp_protocol_select="tcp_protocol"
2376 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2377 rtmps_protocol_deps="!librtmp_protocol"
2378 rtmps_protocol_select="tls_protocol"
2379 rtmpt_protocol_select="ffrtmphttp_protocol"
2380 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2381 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2382 rtp_protocol_select="udp_protocol"
2383 sctp_protocol_deps="struct_sctp_event_subscribe"
2384 sctp_protocol_select="network"
2385 srtp_protocol_select="rtp_protocol srtp"
2386 tcp_protocol_select="network"
2387 tls_gnutls_protocol_deps="gnutls"
2388 tls_gnutls_protocol_select="tcp_protocol"
2389 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2390 tls_openssl_protocol_select="tcp_protocol"
2391 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2392 udp_protocol_select="network"
2393 unix_protocol_deps="sys_un_h"
2394 unix_protocol_select="network"
2395
2396 # filters
2397 blackframe_filter_deps="gpl"
2398 boxblur_filter_deps="gpl"
2399 bs2b_filter_deps="libbs2b"
2400 cropdetect_filter_deps="gpl"
2401 delogo_filter_deps="gpl"
2402 drawtext_filter_deps="libfreetype"
2403 frei0r_filter_deps="frei0r dlopen"
2404 frei0r_filter_extralibs='$ldl'
2405 frei0r_src_filter_deps="frei0r dlopen"
2406 frei0r_src_filter_extralibs='$ldl'
2407 hqdn3d_filter_deps="gpl"
2408 interlace_filter_deps="gpl"
2409 ocv_filter_deps="libopencv"
2410 resample_filter_deps="avresample"
2411 scale_filter_deps="swscale"
2412 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2413
2414 # examples
2415 avcodec_example_deps="avcodec avutil"
2416 filter_audio_example_deps="avfilter avutil"
2417 metadata_example_deps="avformat avutil"
2418 output_example_deps="avcodec avformat avutil swscale"
2419 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2420 transcode_aac_example_deps="avcodec avformat avresample"
2421
2422 # libraries, in linking order
2423 avcodec_deps="avutil"
2424 avdevice_deps="avformat avcodec avutil"
2425 avfilter_deps="avutil"
2426 avformat_deps="avcodec avutil"
2427 avresample_deps="avutil"
2428 swscale_deps="avutil"
2429
2430 # programs
2431 avconv_deps="avcodec avfilter avformat avresample swscale"
2432 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2433 fps_filter null_filter resample_filter scale_filter
2434 setpts_filter trim_filter"
2435 avplay_deps="avcodec avfilter avformat avresample sdl"
2436 avplay_libs='$sdl_libs'
2437 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2438 avprobe_deps="avcodec avformat"
2439
2440 # documentation
2441 pod2man_deps="doc"
2442 texi2html_deps="doc"
2443
2444 # default parameters
2445
2446 logfile="config.log"
2447
2448 # installation paths
2449 prefix_default="/usr/local"
2450 bindir_default='${prefix}/bin'
2451 datadir_default='${prefix}/share/avconv'
2452 docdir_default='${prefix}/share/doc/libav'
2453 incdir_default='${prefix}/include'
2454 libdir_default='${prefix}/lib'
2455 mandir_default='${prefix}/share/man'
2456 shlibdir_default="$libdir_default"
2457
2458 # toolchain
2459 ar_default="ar"
2460 cc_default="gcc"
2461 host_cc_default="gcc"
2462 cp_f="cp -f"
2463 ln_s="ln -s -f"
2464 nm_default="nm -g"
2465 objformat="elf"
2466 pkg_config_default=pkg-config
2467 ranlib="ranlib"
2468 strip="strip"
2469 version_script='--version-script'
2470 yasmexe="yasm"
2471
2472 # machine
2473 arch_default=$(uname -m)
2474 cpu="generic"
2475 intrinsics="none"
2476
2477 # OS
2478 target_os_default=$(tolower $(uname -s))
2479 host_os=$target_os_default
2480
2481 # configurable options
2482 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2483
2484 enable asm
2485 enable debug
2486 enable doc
2487 enable faan faandct faanidct
2488 enable optimizations
2489 enable safe_bitstream_reader
2490 enable static
2491 enable swscale_alpha
2492 enable valgrind_backtrace
2493
2494 # By default, enable only those hwaccels that have no external dependencies.
2495 enable d3d11va dxva2 vda vdpau
2496
2497 # build settings
2498 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2499 LIBPREF="lib"
2500 LIBSUF=".a"
2501 FULLNAME='$(NAME)$(BUILDSUF)'
2502 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2503 SLIBPREF="lib"
2504 SLIBSUF=".so"
2505 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2506 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2507 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2508 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2509 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2510 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2511 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2512
2513 asflags_filter=echo
2514 cflags_filter=echo
2515 ldflags_filter=echo
2516
2517 AS_C='-c'
2518 AS_O='-o $@'
2519 CC_C='-c'
2520 CC_E='-E -o $@'
2521 CC_O='-o $@'
2522 OBJCC_C='-c'
2523 OBJCC_E='-E -o $@'
2524 OBJCC_O='-o $@'
2525 LD_O='-o $@'
2526 LD_LIB='-l%'
2527 LD_PATH='-L'
2528 HOSTCC_C='-c'
2529 HOSTCC_E='-E -o $@'
2530 HOSTCC_O='-o $@'
2531 HOSTLD_O='-o $@'
2532
2533 host_libs='-lm'
2534 host_cflags_filter=echo
2535 host_ldflags_filter=echo
2536
2537 target_path='$(CURDIR)'
2538
2539 # since the object filename is not given with the -MM flag, the compiler
2540 # is only able to print the basename, and we must add the path ourselves
2541 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2542 DEPFLAGS='-MM'
2543
2544 # find source path
2545 if test -f configure; then
2546 source_path=.
2547 else
2548 source_path=$(cd $(dirname "$0"); pwd)
2549 echo "$source_path" | grep -q '[[:blank:]]' &&
2550 die "Out of tree builds are impossible with whitespace in source path."
2551 test -e "$source_path/config.h" &&
2552 die "Out of tree builds are impossible with config.h in source dir."
2553 fi
2554
2555 for v in "$@"; do
2556 r=${v#*=}
2557 l=${v%"$r"}
2558 r=$(sh_quote "$r")
2559 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2560 done
2561
2562 find_things(){
2563 thing=$1
2564 pattern=$2
2565 file=$source_path/$3
2566 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2567 }
2568
2569 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2570 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2571 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2572 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2573 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2574 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2575 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2576 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2577 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2578
2579 find_things_extern(){
2580 thing=$1
2581 pattern=$2
2582 file=$source_path/$3
2583 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2584 }
2585
2586 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2587 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2588
2589 ALL_COMPONENTS="
2590 $BSF_LIST
2591 $DECODER_LIST
2592 $DEMUXER_LIST
2593 $ENCODER_LIST
2594 $FILTER_LIST
2595 $HWACCEL_LIST
2596 $INDEV_LIST
2597 $MUXER_LIST
2598 $OUTDEV_LIST
2599 $PARSER_LIST
2600 $PROTOCOL_LIST
2601 "
2602
2603 for n in $COMPONENT_LIST; do
2604 v=$(toupper ${n%s})_LIST
2605 eval enable \$$v
2606 eval ${n}_if_any="\$$v"
2607 done
2608
2609 enable $ARCH_EXT_LIST
2610
2611 die_unknown(){
2612 echo "Unknown option \"$1\"."
2613 echo "See $0 --help for available options."
2614 exit 1
2615 }
2616
2617 print_3_columns() {
2618 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2619 }
2620
2621 show_list() {
2622 suffix=_$1
2623 shift
2624 echo $* | sed s/$suffix//g | print_3_columns
2625 exit 0
2626 }
2627
2628 rand_list(){
2629 IFS=', '
2630 set -- $*
2631 unset IFS
2632 for thing; do
2633 comp=${thing%:*}
2634 prob=${thing#$comp}
2635 prob=${prob#:}
2636 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2637 echo "prob ${prob:-0.5}"
2638 printf '%s\n' $comp
2639 done
2640 }
2641
2642 do_random(){
2643 action=$1
2644 shift
2645 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2646 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2647 }
2648
2649 for opt do
2650 optval="${opt#*=}"
2651 case "$opt" in
2652 --extra-ldflags=*)
2653 add_ldflags $optval
2654 ;;
2655 --extra-ldexeflags=*)
2656 add_ldexeflags $optval
2657 ;;
2658 --extra-libs=*)
2659 add_extralibs $optval
2660 ;;
2661 --disable-devices)
2662 disable $INDEV_LIST $OUTDEV_LIST
2663 ;;
2664 --enable-debug=*)
2665 debuglevel="$optval"
2666 ;;
2667 --disable-programs)
2668 disable $PROGRAM_LIST
2669 ;;
2670 --disable-everything)
2671 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2672 ;;
2673 --disable-all)
2674 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2675 disable $LIBRARY_LIST $PROGRAM_LIST doc
2676 ;;
2677 --enable-random|--disable-random)
2678 action=${opt%%-random}
2679 do_random ${action#--} $COMPONENT_LIST
2680 ;;
2681 --enable-random=*|--disable-random=*)
2682 action=${opt%%-random=*}
2683 do_random ${action#--} $optval
2684 ;;
2685 --enable-*=*|--disable-*=*)
2686 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2687 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2688 eval list=\$$(toupper $thing)_LIST
2689 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2690 $action $(filter "$name" $list)
2691 ;;
2692 --enable-avserver|--disable-avserver*)
2693 warn "avserver has been removed, the ${opt} option is only"\
2694 "provided for compatibility and will be removed in the future"
2695 ;;
2696 --enable-?*|--disable-?*)
2697 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2698 if is_in $option $COMPONENT_LIST; then
2699 test $action = disable && action=unset
2700 eval $action \$$(toupper ${option%s})_LIST
2701 elif is_in $option $CMDLINE_SELECT; then
2702 $action $option
2703 else
2704 die_unknown $opt
2705 fi
2706 ;;
2707 --list-*)
2708 NAME="${opt#--list-}"
2709 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2710 NAME=${NAME%s}
2711 eval show_list $NAME \$$(toupper $NAME)_LIST
2712 ;;
2713 --help|-h) show_help
2714 ;;
2715 *)
2716 optname="${opt%%=*}"
2717 optname="${optname#--}"
2718 optname=$(echo "$optname" | sed 's/-/_/g')
2719 if is_in $optname $CMDLINE_SET; then
2720 eval $optname='$optval'
2721 elif is_in $optname $CMDLINE_APPEND; then
2722 append $optname "$optval"
2723 else
2724 die_unknown $opt
2725 fi
2726 ;;
2727 esac
2728 done
2729
2730 for e in $env; do
2731 eval "export $e"
2732 done
2733
2734 disabled logging && logfile=/dev/null
2735
2736 # Disable all the library-specific components if the library itself
2737 # is disabled, see AVCODEC_LIST and following _LIST variables.
2738
2739 disable_components(){
2740 disabled ${1} && disable $(
2741 eval components="\$$(toupper ${1})_COMPONENTS"
2742 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2743 )
2744 }
2745
2746 map 'disable_components $v' $LIBRARY_LIST
2747
2748 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2749 set >> $logfile
2750
2751 case "$toolchain" in
2752 *-asan)
2753 cc_default="${toolchain%-asan}"
2754 add_cflags -fsanitize=address
2755 add_ldflags -fsanitize=address
2756 ;;
2757 *-msan)
2758 cc_default="${toolchain%-msan}"
2759 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2760 add_ldflags -fsanitize=memory
2761 ;;
2762 *-tsan)
2763 cc_default="${toolchain%-tsan}"
2764 add_cflags -fsanitize=thread -pie
2765 add_ldflags -fsanitize=thread -pie
2766 case "$toolchain" in
2767 gcc-tsan)
2768 add_cflags -fPIC
2769 add_ldflags -fPIC
2770 ;;
2771 esac
2772 ;;
2773 *-usan)
2774 cc_default="${toolchain%-usan}"
2775 add_cflags -fsanitize=undefined
2776 add_ldflags -fsanitize=undefined
2777 case "$toolchain" in
2778 clang-usan)
2779 add_cflags -O1
2780 ;;
2781 esac
2782 ;;
2783 valgrind-*)
2784 target_exec_default="valgrind"
2785 case "$toolchain" in
2786 valgrind-massif)
2787 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2788 ;;
2789 valgrind-memcheck)
2790 target_exec_args="--track-origins=yes --leak-check=full"
2791 ;;
2792 esac
2793 ;;
2794 msvc)
2795 # Check whether the current MSVC version needs the C99 converter.
2796 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2797 # support enough of C99 to build libav. Default to the new
2798 # behaviour if the regexp was unable to match anything, since this
2799 # successfully parses the version number of existing supported
2800 # versions that require the converter (MSVC 2010 and 2012).
2801 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2802 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2803 cc_default="cl"
2804 else
2805 cc_default="c99wrap cl"
2806 fi
2807 ld_default="$source_path/compat/windows/mslink"
2808 nm_default="dumpbin -symbols"
2809 ar_default="lib"
2810 case "$arch" in
2811 arm*)
2812 as_default="armasm"
2813 ;;
2814 esac
2815 target_os_default="win32"
2816 # Use a relative path for TMPDIR. This makes sure all the
2817 # ffconf temp files are written with a relative path, avoiding
2818 # issues with msys/win32 path conversion for MSVC parameters
2819 # such as -Fo<file> or -out:<file>.
2820 TMPDIR=.
2821 ;;
2822 icl)
2823 cc_default="icl"
2824 ld_default="xilink"
2825 nm_default="dumpbin -symbols"
2826 ar_default="xilib"
2827 target_os_default="win32"
2828 TMPDIR=.
2829 ;;
2830 gcov)
2831 add_cflags -fprofile-arcs -ftest-coverage
2832 add_ldflags -fprofile-arcs -ftest-coverage
2833 ;;
2834 llvm-cov)
2835 add_cflags -fprofile-arcs -ftest-coverage
2836 add_ldflags --coverage
2837 ;;
2838 hardened)
2839 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2840 add_cflags -fno-strict-overflow -fstack-protector-all
2841 add_ldflags -Wl,-z,relro -Wl,-z,now
2842 ;;
2843 ?*)
2844 die "Unknown toolchain $toolchain"
2845 ;;
2846 esac
2847
2848 test -n "$cross_prefix" && enable cross_compile
2849
2850 if enabled cross_compile; then
2851 test -n "$arch" && test -n "$target_os" ||
2852 die "Must specify target arch and OS when cross-compiling"
2853 fi
2854
2855 ar_default="${cross_prefix}${ar_default}"
2856 cc_default="${cross_prefix}${cc_default}"
2857 occ_default="${cross_prefix}${occ_default}"
2858 nm_default="${cross_prefix}${nm_default}"
2859 pkg_config_default="${cross_prefix}${pkg_config_default}"
2860 ranlib="${cross_prefix}${ranlib}"
2861 strip="${cross_prefix}${strip}"
2862
2863 sysinclude_default="${sysroot}/usr/include"
2864
2865 set_default arch cc pkg_config sysinclude target_exec target_os
2866 enabled cross_compile || host_cc_default=$cc
2867 set_default host_cc
2868
2869 if ! $pkg_config --version >/dev/null 2>&1; then
2870 warn "$pkg_config not found, library detection may fail."
2871 pkg_config=false
2872 fi
2873
2874 exesuf() {
2875 case $1 in
2876 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2877 esac
2878 }
2879
2880 EXESUF=$(exesuf $target_os)
2881 HOSTEXESUF=$(exesuf $host_os)
2882
2883 # set temporary file name
2884 : ${TMPDIR:=$TEMPDIR}
2885 : ${TMPDIR:=$TMP}
2886 : ${TMPDIR:=/tmp}
2887
2888 if ! check_cmd mktemp -u XXXXXX; then
2889 # simple replacement for missing mktemp
2890 # NOT SAFE FOR GENERAL USE
2891 mktemp(){
2892 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2893 }
2894 fi
2895
2896 tmpfile(){
2897 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2898 (set -C; exec > $tmp) 2>/dev/null ||
2899 die "Unable to create temporary file in $TMPDIR."
2900 append TMPFILES $tmp
2901 eval $1=$tmp
2902 }
2903
2904 trap 'rm -f -- $TMPFILES' EXIT
2905
2906 tmpfile TMPASM .asm
2907 tmpfile TMPC .c
2908 tmpfile TMPE $EXESUF
2909 tmpfile TMPH .h
2910 tmpfile TMPO .o
2911 tmpfile TMPS .S
2912 tmpfile TMPSH .sh
2913 tmpfile TMPV .ver
2914
2915 unset -f mktemp
2916
2917 chmod +x $TMPE
2918
2919 # make sure we can execute files in $TMPDIR
2920 cat > $TMPSH 2>> $logfile <<EOF
2921 #! /bin/sh
2922 EOF
2923 chmod +x $TMPSH >> $logfile 2>&1
2924 if ! $TMPSH >> $logfile 2>&1; then
2925 cat <<EOF
2926 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2927 variable to another directory and make sure that it is not mounted noexec.
2928 EOF
2929 die "Sanity test failed."
2930 fi
2931
2932 armasm_flags(){
2933 for flag; do
2934 case $flag in
2935 # Filter out MSVC cl.exe options from cflags that shouldn't
2936 # be passed to gas-preprocessor
2937 -M[TD]*) ;;
2938 *) echo $flag ;;
2939 esac
2940 done
2941 }
2942
2943 ccc_flags(){
2944 for flag; do
2945 case $flag in
2946 -std=c99) echo -c99 ;;
2947 -mcpu=*) echo -arch ${flag#*=} ;;
2948 -mieee) echo -ieee ;;
2949 -O*|-fast) echo $flag ;;
2950 -fno-math-errno) echo -assume nomath_errno ;;
2951 -g) echo -g3 ;;
2952 -Wall) echo -msg_enable level2 ;;
2953 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2954 -Wl,*) echo $flag ;;
2955 -f*|-W*) ;;
2956 *) echo $flag ;;
2957 esac
2958 done
2959 }
2960
2961 cparser_flags(){
2962 for flag; do
2963 case $flag in
2964 -Wno-switch) echo -Wno-switch-enum ;;
2965 -Wno-format-zero-length) ;;
2966 -Wdisabled-optimization) ;;
2967 -Wno-pointer-sign) echo -Wno-other ;;
2968 *) echo $flag ;;
2969 esac
2970 done
2971 }
2972
2973 msvc_common_flags(){
2974 for flag; do
2975 case $flag in
2976 # In addition to specifying certain flags under the compiler
2977 # specific filters, they must be specified here as well or else the
2978 # generic catch all at the bottom will print the original flag.
2979 -Wall) ;;
2980 -std=c99) ;;
2981 # Common flags
2982 -fomit-frame-pointer) ;;
2983 -g) echo -Z7 ;;
2984 -fno-math-errno) ;;
2985 -fno-common) ;;
2986 -fno-signed-zeros) ;;
2987 -fPIC) ;;
2988 -mthumb) ;;
2989 -march=*) ;;
2990 -lz) echo zlib.lib ;;
2991 -lavifil32) echo vfw32.lib ;;
2992 -lavicap32) echo vfw32.lib user32.lib ;;
2993 -lx264) echo libx264.lib ;;
2994 -l*) echo ${flag#-l}.lib ;;
2995 -L*) echo -libpath:${flag#-L} ;;
2996 *) echo $flag ;;
2997 esac
2998 done
2999 }
3000
3001 msvc_flags(){
3002 msvc_common_flags "$@"
3003 for flag; do
3004 case $flag in
3005 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3006 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3007 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3008 -wd4273 -wd4554 -wd4701 ;;
3009 esac
3010 done
3011 }
3012
3013 icl_flags(){
3014 msvc_common_flags "$@"
3015 for flag; do
3016 case $flag in
3017 # Despite what Intel's documentation says -Wall, which is supported
3018 # on Windows, does enable remarks so disable them here.
3019 -Wall) echo $flag -Qdiag-disable:remark ;;
3020 -std=c99) echo -Qstd=c99 ;;
3021 esac
3022 done
3023 }
3024
3025 pgi_flags(){
3026 for flag; do
3027 case $flag in
3028 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3029 -fomit-frame-pointer) echo -Mnoframe ;;
3030 -g) echo -gopt ;;
3031 *) echo $flag ;;
3032 esac
3033 done
3034 }
3035
3036 suncc_flags(){
3037 for flag; do
3038 case $flag in
3039 -march=*|-mcpu=*)
3040 case "${flag#*=}" in
3041 native) echo -xtarget=native ;;
3042 v9|niagara) echo -xarch=sparc ;;
3043 ultrasparc) echo -xarch=sparcvis ;;
3044 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3045 i586|pentium) echo -xchip=pentium ;;
3046 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3047 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3048 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3049 pentium4*) echo -xtarget=pentium4 ;;
3050 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3051 *-sse3) echo -xarch=sse3 ;;
3052 core2) echo -xarch=ssse3 -xchip=core2 ;;
3053 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3054 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3055 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3056 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3057 k8|opteron|athlon64|athlon-fx)
3058 echo -xarch=sse2a ;;
3059 athlon*) echo -xarch=pentium_proa ;;
3060 esac
3061 ;;
3062 -std=c99) echo -xc99 ;;
3063 -fomit-frame-pointer) echo -xregs=frameptr ;;
3064 -fPIC) echo -KPIC -xcode=pic32 ;;
3065 -W*,*) echo $flag ;;
3066 -f*-*|-W*|-mimpure-text) ;;
3067 -shared) echo -G ;;
3068 *) echo $flag ;;
3069 esac
3070 done
3071 }
3072
3073 tms470_flags(){
3074 for flag; do
3075 case $flag in
3076 -march=*|-mcpu=*)
3077 case "${flag#*=}" in
3078 armv7-a|cortex-a*) echo -mv=7a8 ;;
3079 armv7-r|cortex-r*) echo -mv=7r4 ;;
3080 armv7-m|cortex-m*) echo -mv=7m3 ;;
3081 armv6*|arm11*) echo -mv=6 ;;
3082 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3083 echo -mv=5e ;;
3084 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3085 esac
3086 ;;
3087 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3088 -mfpu=vfp) echo --float_support=vfpv2 ;;
3089 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3090 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3091 -msoft-float) echo --float_support=vfplib ;;
3092 -O[0-3]|-mf=*) echo $flag ;;
3093 -g) echo -g -mn ;;
3094 -pds=*) echo $flag ;;
3095 -D*|-I*) echo $flag ;;
3096 --gcc|--abi=*) echo $flag ;;
3097 -me) echo $flag ;;
3098 esac
3099 done
3100 }
3101
3102 probe_cc(){
3103 pfx=$1
3104 _cc=$2
3105
3106 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3107 unset _ld_o _ldflags _ld_lib _ld_path
3108 unset _depflags _DEPCMD _DEPFLAGS
3109 _flags_filter=echo
3110
3111 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3112 _type=llvm_gcc
3113 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3114 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3115 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3116 _cflags_speed='-O3'
3117 _cflags_size='-Os'
3118 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3119 _type=gcc
3120 gcc_version=$($_cc --version | head -n1)
3121 gcc_basever=$($_cc -dumpversion)
3122 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3123 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3124 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3125 if ! $_cc -dumpversion | grep -q '^2\.'; then
3126 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3127 fi
3128 _cflags_speed='-O3'
3129 _cflags_size='-Os'
3130 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3131 _type=icc
3132 _ident=$($_cc --version | head -n1)
3133 _depflags='-MMD'
3134 _cflags_speed='-O3'
3135 _cflags_size='-Os'
3136 _cflags_noopt='-O1'
3137 elif $_cc -v 2>&1 | grep -q xlc; then
3138 _type=xlc
3139 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3140 _cflags_speed='-O5'
3141 _cflags_size='-O5 -qcompact'
3142 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3143 _type=ccc
3144 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3145 _DEPFLAGS='-M'
3146 _cflags_speed='-fast'
3147 _cflags_size='-O1'
3148 _flags_filter=ccc_flags
3149 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3150 test -d "$sysroot" || die "No valid sysroot specified."
3151 _type=armcc
3152 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3153 armcc_conf="$PWD/armcc.conf"
3154 $_cc --arm_linux_configure \
3155 --arm_linux_config_file="$armcc_conf" \
3156 --configure_sysroot="$sysroot" \
3157 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3158 die "Error creating armcc configuration file."
3159 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3160 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3161 as_default="${cross_prefix}gcc"
3162 _depflags='-MMD'
3163 _cflags_speed='-O3'
3164 _cflags_size='-Os'
3165 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3166 _type=tms470
3167 _ident=$($_cc -version | head -n1 | tr -s ' ')
3168 _flags='--gcc --abi=eabi -me'
3169 _cc_e='-ppl -fe=$@'
3170 _cc_o='-fe=$@'
3171 _depflags='-ppa -ppd=$(@:.o=.d)'
3172 _cflags_speed='-O3 -mf=5'
3173 _cflags_size='-O3 -mf=2'
3174 _flags_filter=tms470_flags
3175 elif $_cc -v 2>&1 | grep -q clang; then
3176 _type=clang
3177 _ident=$($_cc --version 2>/dev/null | head -n1)
3178 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3179 _cflags_speed='-O3'
3180 _cflags_size='-Os'
3181 elif $_cc -V 2>&1 | grep -q Sun; then
3182 _type=suncc
3183 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3184 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3185 _DEPFLAGS='-xM1 -xc99'
3186 _ldflags='-std=c99'
3187 _cflags_speed='-O5'
3188 _cflags_size='-O5 -xspace'
3189 _flags_filter=suncc_flags
3190 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3191 _type=pathscale
3192 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3193 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3194 _cflags_speed='-O2'
3195 _cflags_size='-Os'
3196 _flags_filter='filter_out -Wdisabled-optimization'
3197 elif $_cc -v 2>&1 | grep -q Open64; then
3198 _type=open64
3199 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3200 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3201 _cflags_speed='-O2'
3202 _cflags_size='-Os'
3203 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3204 elif $_cc -V 2>&1 | grep -q Portland; then
3205 _type=pgi
3206 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3207 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3208 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3209 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3210 _cflags_noopt="-O1"
3211 _flags_filter=pgi_flags
3212 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3213 _type=armasm
3214 _ident=$($_cc | head -n1)
3215 # 4509: "This form of conditional instruction is deprecated"
3216 _flags="-nologo -ignore 4509"
3217 _flags_filter=armasm_flags
3218 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3219 _type=msvc
3220 _ident=$($_cc 2>&1 | head -n1)
3221 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3222 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3223 _cflags_speed="-O2"
3224 _cflags_size="-O1"
3225 if $_cc -nologo- 2>&1 | grep -q Linker; then
3226 _ld_o='-out:$@'
3227 else
3228 _ld_o='-Fe$@'
3229 fi
3230 _cc_o='-Fo$@'
3231 _cc_e='-P -Fi$@'
3232 _flags_filter=msvc_flags
3233 _ld_lib='lib%.a'
3234 _ld_path='-libpath:'
3235 _flags='-nologo'
3236 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3237 elif $_cc 2>&1 | grep -q Intel; then
3238 _type=icl
3239 _ident=$($_cc 2>&1 | head -n1)
3240 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3241 # Not only is O3 broken on 13.x+ but it is slower on all previous
3242 # versions (tested) as well.
3243 _cflags_speed="-O2"
3244 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3245 if $_cc 2>&1 | grep -q Linker; then
3246 _ld_o='-out:$@'
3247 else
3248 _ld_o='-Fe$@'
3249 fi
3250 _cc_o='-Fo$@'
3251 _cc_e='-P'
3252 _flags_filter=icl_flags
3253 _ld_lib='lib%.a'
3254 _ld_path='-libpath:'
3255 # -Qdiag-error to make icl error when seeing certain unknown arguments
3256 _flags='-nologo -Qdiag-error:4044,10157'
3257 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3258 # with MSVC which enables it by default.
3259 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3260 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3261 _type=cparser
3262 _ident=$($_cc --version | head -n1)
3263 _depflags='-MMD'
3264 _cflags_speed='-O4'
3265 _cflags_size='-O2'
3266 _flags_filter=cparser_flags
3267 fi
3268
3269 eval ${pfx}_type=\$_type
3270 eval ${pfx}_ident=\$_ident
3271 }
3272
3273 set_ccvars(){
3274 eval ${1}_C=\${_cc_c-\${${1}_C}}
3275 eval ${1}_E=\${_cc_e-\${${1}_E}}
3276 eval ${1}_O=\${_cc_o-\${${1}_O}}
3277
3278 if [ -n "$_depflags" ]; then
3279 eval ${1}_DEPFLAGS=\$_depflags
3280 else
3281 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3282 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3283 eval DEP${1}FLAGS=\$_flags
3284 fi
3285 }
3286
3287 probe_cc cc "$cc"
3288 cflags_filter=$_flags_filter
3289 cflags_speed=$_cflags_speed
3290 cflags_size=$_cflags_size
3291 cflags_noopt=$_cflags_noopt
3292 add_cflags $_flags $_cflags
3293 cc_ldflags=$_ldflags
3294 set_ccvars CC
3295
3296 probe_cc hostcc "$host_cc"
3297 host_cflags_filter=$_flags_filter
3298 add_host_cflags $_flags $_cflags
3299 set_ccvars HOSTCC
3300
3301 test -n "$cc_type" && enable $cc_type ||
3302 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3303
3304 : ${as_default:=$cc}
3305 : ${objcc_default:=$cc}
3306 : ${dep_cc_default:=$cc}
3307 : ${ld_default:=$cc}
3308 : ${host_ld_default:=$host_cc}
3309 set_default ar as objcc dep_cc ld host_ld
3310
3311 probe_cc as "$as"
3312 asflags_filter=$_flags_filter
3313 add_asflags $_flags $_cflags
3314 set_ccvars AS
3315
3316 probe_cc objcc "$objcc"
3317 objcflags_filter=$_flags_filter
3318 add_objcflags $_flags $_cflags
3319 set_ccvars OBJC
3320
3321 probe_cc ld "$ld"
3322 ldflags_filter=$_flags_filter
3323 add_ldflags $_flags $_ldflags
3324 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3325 LD_O=${_ld_o-$LD_O}
3326 LD_LIB=${_ld_lib-$LD_LIB}
3327 LD_PATH=${_ld_path-$LD_PATH}
3328
3329 probe_cc hostld "$host_ld"
3330 host_ldflags_filter=$_flags_filter
3331 add_host_ldflags $_flags $_ldflags
3332 HOSTLD_O=${_ld_o-$HOSTLD_O}
3333
3334 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3335 probe_cc depcc "$dep_cc"
3336 CCDEP=${_DEPCMD:-$DEPCMD}
3337 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3338 DEPCCFLAGS=$_flags
3339 fi
3340
3341 if $ar 2>&1 | grep -q Microsoft; then
3342 arflags="-nologo"
3343 ar_o='-out:$@'
3344 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3345 arflags="rq"
3346 ar_o='$@'
3347 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3348 arflags='-Xany -r -c'
3349 ar_o='$@'
3350 else
3351 arflags="rc"
3352 ar_o='$@'
3353 fi
3354
3355 add_cflags $extra_cflags
3356 add_objcflags $extra_objcflags
3357 add_asflags $extra_cflags
3358
3359 if test -n "$sysroot"; then
3360 case "$cc_type" in
3361 gcc|llvm_gcc|clang)
3362 add_cppflags --sysroot="$sysroot"
3363 add_ldflags --sysroot="$sysroot"
3364 ;;
3365 tms470)
3366 add_cppflags -I"$sysinclude"
3367 add_ldflags --sysroot="$sysroot"
3368 ;;
3369 esac
3370 fi
3371
3372 if test "$cpu" = host; then
3373 enabled cross_compile &&
3374 die "--cpu=host makes no sense when cross-compiling."
3375
3376 case "$cc_type" in
3377 gcc|llvm_gcc)
3378 check_native(){
3379 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3380 sed -n "/cc1.*$1=/{
3381 s/.*$1=\\([^ ]*\\).*/\\1/
3382 p
3383 q
3384 }" $TMPE
3385 }
3386 cpu=$(check_native -march || check_native -mcpu)
3387 ;;
3388 esac
3389
3390 test "${cpu:-host}" = host &&
3391 die "--cpu=host not supported with compiler $cc"
3392 fi
3393
3394 # Deal with common $arch aliases
3395 case "$arch" in
3396 aarch64|arm64)
3397 arch="aarch64"
3398 ;;
3399 arm*)
3400 arch="arm"
3401 ;;
3402 mips*|IP*)
3403 case "$arch" in
3404 *el)
3405 add_cppflags -EL
3406 add_ldflags -EL
3407 ;;
3408 *eb)
3409 add_cppflags -EB
3410 add_ldflags -EB
3411 ;;
3412 esac
3413 arch="mips"
3414 ;;
3415 parisc*|hppa*)
3416 arch="parisc"
3417 ;;
3418 "Power Macintosh"|ppc*|powerpc*)
3419 arch="ppc"
3420 ;;
3421 s390|s390x)
3422 arch="s390"
3423 ;;
3424 sh4|sh)
3425 arch="sh4"
3426 ;;
3427 sun4u|sparc*)
3428 arch="sparc"
3429 ;;
3430 tilegx|tile-gx)
3431 arch="tilegx"
3432 ;;
3433 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3434 arch="x86"
3435 ;;
3436 esac
3437
3438 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3439 enable $arch
3440
3441 # Add processor-specific flags
3442 if enabled aarch64; then
3443
3444 case $cpu in
3445 armv*)
3446 cpuflags="-march=$cpu"
3447 ;;
3448 *)
3449 cpuflags="-mcpu=$cpu"
3450 ;;
3451 esac
3452
3453 elif enabled alpha; then
3454
3455 cpuflags="-mcpu=$cpu"
3456
3457 elif enabled arm; then
3458
3459 check_arm_arch() {
3460 check_cpp_condition stddef.h \
3461 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3462 $cpuflags
3463 }
3464
3465 probe_arm_arch() {
3466 if check_arm_arch 4; then echo armv4
3467 elif check_arm_arch 4T; then echo armv4t
3468 elif check_arm_arch 5; then echo armv5
3469 elif check_arm_arch 5E; then echo armv5e
3470 elif check_arm_arch 5T; then echo armv5t
3471 elif check_arm_arch 5TE; then echo armv5te
3472 elif check_arm_arch 5TEJ; then echo armv5te
3473 elif check_arm_arch 6; then echo armv6
3474 elif check_arm_arch 6J; then echo armv6j
3475 elif check_arm_arch 6K; then echo armv6k
3476 elif check_arm_arch 6Z; then echo armv6z
3477 elif check_arm_arch 6ZK; then echo armv6zk
3478 elif check_arm_arch 6T2; then echo armv6t2
3479 elif check_arm_arch 7; then echo armv7
3480 elif check_arm_arch 7A 7_A; then echo armv7-a
3481 elif check_arm_arch 7S; then echo armv7-a
3482 elif check_arm_arch 7R 7_R; then echo armv7-r
3483 elif check_arm_arch 7M 7_M; then echo armv7-m
3484 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3485 elif check_arm_arch 8A 8_A; then echo armv8-a
3486 fi
3487 }
3488
3489 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3490
3491 case $cpu in
3492 armv*)
3493 cpuflags="-march=$cpu"
3494 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3495 ;;
3496 *)
3497 cpuflags="-mcpu=$cpu"
3498 case $cpu in
3499 cortex-a*) subarch=armv7a ;;
3500 cortex-r*) subarch=armv7r ;;
3501 cortex-m*) enable thumb; subarch=armv7m ;;
3502 arm11*) subarch=armv6 ;;
3503 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3504 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3505 *) subarch=$(probe_arm_arch) ;;
3506 esac
3507 ;;
3508 esac
3509
3510 case "$subarch" in
3511 armv5t*) enable fast_clz ;;
3512 armv[6-8]*) enable fast_clz fast_unaligned ;;
3513 esac
3514
3515 elif enabled avr32; then
3516
3517 case $cpu in
3518 ap7[02]0[0-2])
3519 subarch="avr32_ap"
3520 cpuflags="-mpart=$cpu"
3521 ;;
3522 ap)
3523 subarch="avr32_ap"
3524 cpuflags="-march=$cpu"
3525 ;;
3526 uc3[ab]*)
3527 subarch="avr32_uc"
3528 cpuflags="-mcpu=$cpu"
3529 ;;
3530 uc)
3531 subarch="avr32_uc"
3532 cpuflags="-march=$cpu"
3533 ;;
3534 esac
3535
3536 elif enabled bfin; then
3537
3538 cpuflags="-mcpu=$cpu"
3539
3540 elif enabled mips; then
3541
3542 cpuflags="-march=$cpu"
3543
3544 elif enabled ppc; then
3545
3546 disable ldbrx
3547
3548 case $(tolower $cpu) in
3549 601|ppc601|powerpc601)
3550 cpuflags="-mcpu=601"
3551 disable altivec
3552 ;;
3553 603*|ppc603*|powerpc603*)
3554 cpuflags="-mcpu=603"
3555 disable altivec
3556 ;;
3557 604*|ppc604*|powerpc604*)
3558 cpuflags="-mcpu=604"
3559 disable altivec
3560 ;;
3561 g3|75*|ppc75*|powerpc75*)
3562 cpuflags="-mcpu=750"
3563 disable altivec
3564 ;;
3565 g4|745*|ppc745*|powerpc745*)
3566 cpuflags="-mcpu=7450"
3567 disable vsx
3568 ;;
3569 74*|ppc74*|powerpc74*)
3570 cpuflags="-mcpu=7400"
3571 disable vsx
3572 ;;
3573 g5|970|ppc970|powerpc970)
3574 cpuflags="-mcpu=970"
3575 disable vsx
3576 ;;
3577 power[3-6]*)
3578 cpuflags="-mcpu=$cpu"
3579 disable vsx
3580 ;;
3581 power[7-8]*)
3582 cpuflags="-mcpu=$cpu"
3583 enable ldbrx
3584 ;;
3585 cell)
3586 cpuflags="-mcpu=cell"
3587 enable ldbrx
3588 disable vsx
3589 ;;
3590 e500mc)
3591 cpuflags="-mcpu=e500mc"
3592 disable altivec
3593 ;;
3594 e500v2)
3595 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3596 disable altivec
3597 disable dcbzl
3598 ;;
3599 e500)
3600 cpuflags="-mcpu=8540 -mhard-float"
3601 disable altivec
3602 disable dcbzl
3603 ;;
3604 esac
3605
3606 elif enabled sparc; then
3607
3608 case $cpu in
3609 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3610 cpuflags="-mcpu=$cpu"
3611 ;;
3612 ultrasparc*|niagara[234])
3613 cpuflags="-mcpu=$cpu"
3614 ;;
3615 esac
3616
3617 elif enabled x86; then
3618
3619 case $cpu in
3620 i[345]86|pentium)
3621 cpuflags="-march=$cpu"
3622 disable i686
3623 disable mmx
3624 ;;
3625 # targets that do NOT support nopl and conditional mov (cmov)
3626 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3627 cpuflags="-march=$cpu"
3628 disable i686
3629 ;;
3630 # targets that do support nopl and conditional mov (cmov)
3631 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3632 cpuflags="-march=$cpu"
3633 enable i686
3634 enable fast_cmov
3635 ;;
3636 # targets that do support conditional mov but on which it's slow
3637 pentium4|pentium4m|prescott|nocona)
3638 cpuflags="-march=$cpu"
3639 enable i686
3640 disable fast_cmov
3641 ;;
3642 esac
3643
3644 fi
3645
3646 if [ "$cpu" != generic ]; then
3647 add_cflags $cpuflags
3648 add_asflags $cpuflags
3649 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3650 fi
3651
3652 # compiler sanity check
3653 check_exec <<EOF
3654 int main(void){ return 0; }
3655 EOF
3656 if test "$?" != 0; then
3657 echo "$cc is unable to create an executable file."
3658 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3659 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3660 echo "Only do this if you know what cross compiling means."
3661 fi
3662 die "C compiler test failed."
3663 fi
3664
3665 add_cppflags -D_ISOC99_SOURCE
3666 check_cflags -std=c99
3667 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3668 #include <stdlib.h>
3669 EOF
3670 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3671 #include <stdlib.h>
3672 EOF
3673
3674 add_host_cppflags -D_ISOC99_SOURCE
3675 check_host_cflags -std=c99
3676 check_host_cflags -Wall
3677 check_host_cflags -O3
3678
3679 check_64bit(){
3680 arch32=$1
3681 arch64=$2
3682 expr=$3
3683 check_code cc "" "int test[2*($expr) - 1]" &&
3684 subarch=$arch64 || subarch=$arch32
3685 }
3686
3687 case "$arch" in
3688 aarch64|alpha|ia64)
3689 spic=$shared
3690 ;;
3691 mips)
3692 check_64bit mips mips64 '_MIPS_SIM > 1'
3693 spic=$shared
3694 ;;
3695 parisc)
3696 check_64bit parisc parisc64 'sizeof(void *) > 4'
3697 spic=$shared
3698 ;;
3699 ppc)
3700 check_64bit ppc ppc64 'sizeof(void *) > 4'
3701 spic=$shared
3702 ;;
3703 s390)
3704 check_64bit s390 s390x 'sizeof(void *) > 4'
3705 spic=$shared
3706 ;;
3707 sparc)
3708 check_64bit sparc sparc64 'sizeof(void *) > 4'
3709 spic=$shared
3710 ;;
3711 x86)
3712 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3713 if test "$subarch" = "x86_64"; then
3714 spic=$shared
3715 fi
3716 ;;
3717 esac
3718
3719 enable $subarch
3720 enabled spic && enable_weak pic
3721
3722 # OS specific
3723 case $target_os in
3724 aix)
3725 SHFLAGS=-shared
3726 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3727 enabled shared && add_ldflags -Wl,-brtl
3728 ;;
3729 android)
3730 disable symver
3731 enable section_data_rel_ro
3732 SLIB_INSTALL_NAME='$(SLIBNAME)'
3733 SLIB_INSTALL_LINKS=
3734 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3735 ;;
3736 haiku)
3737 prefix_default="/boot/common"
3738 network_extralibs="-lnetwork"
3739 host_libs=
3740 ;;
3741 sunos)
3742 SHFLAGS='-shared -Wl,-h,$$(@F)'
3743 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3744 network_extralibs="-lsocket -lnsl"
3745 # When using suncc to build, the Solaris linker will mark
3746 # an executable with each instruction set encountered by
3747 # the Solaris assembler. As our libraries contain their own
3748 # guards for processor-specific code, instead suppress
3749 # generation of the HWCAPS ELF section on Solaris x86 only.
3750 enabled_all suncc x86 &&
3751 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3752 add_ldflags -Wl,-M,mapfile
3753 nm_default='nm -P -g'
3754 version_script='-M'
3755 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3756 ;;
3757 netbsd)
3758 disable symver
3759 oss_indev_extralibs="-lossaudio"
3760 oss_outdev_extralibs="-lossaudio"
3761 ;;
3762 openbsd|bitrig)
3763 disable symver
3764 SHFLAGS='-shared'
3765 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3766 SLIB_INSTALL_LINKS=
3767 oss_indev_extralibs="-lossaudio"
3768 oss_outdev_extralibs="-lossaudio"
3769 ;;
3770 dragonfly)
3771 disable symver
3772 ;;
3773 freebsd)
3774 ;;
3775 bsd/os)
3776 add_extralibs -lpoll -lgnugetopt
3777 ;;
3778 darwin)
3779 enabled ppc && add_asflags -force_cpusubtype_ALL
3780 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3781 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3782 add_ldflags -Wl,-dynamic,-search_paths_first
3783 SLIBSUF=".dylib"
3784 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3785 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3786 objformat="macho"
3787 enabled x86_64 && objformat="macho64"
3788 enabled_any pic shared ||
3789 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3790 check_header dispatch/dispatch.h &&
3791 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3792 ;;
3793 msys*)
3794 die "Native MSYS builds are discouraged, please use the MINGW environment."
3795 ;;
3796 mingw32*|mingw64*)
3797 if test $target_os = "mingw32ce"; then
3798 disable network
3799 else
3800 target_os=mingw32
3801 fi
3802 LIBTARGET=i386
3803 if enabled x86_64; then
3804 LIBTARGET="i386:x86-64"
3805 elif enabled arm; then
3806 LIBTARGET=arm-wince
3807 fi
3808 check_ldflags -Wl,--nxcompat
3809 check_ldflags -Wl,--dynamicbase
3810 shlibdir_default="$bindir_default"
3811 SLIBPREF=""
3812 SLIBSUF=".dll"
3813 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3814 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3815 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3816 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3817 SLIB_INSTALL_LINKS=
3818 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3819 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3820 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3821 objformat="win32"
3822 dlltool="${cross_prefix}dlltool"
3823 ranlib=:
3824 enable dos_paths
3825 ;;
3826 win32|win64)
3827 disable symver
3828 if enabled shared; then
3829 # Link to the import library instead of the normal static library
3830 # for shared libs.
3831 LD_LIB='%.lib'
3832 # Cannot build both shared and static libs with MSVC or icl.
3833 disable static
3834 fi
3835 shlibdir_default="$bindir_default"
3836 SLIBPREF=""
3837 SLIBSUF=".dll"
3838 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3839 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3840 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3841 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3842 SLIB_INSTALL_LINKS=
3843 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3844 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3845 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3846 objformat="win32"
3847 ranlib=:
3848 enable dos_paths
3849 ;;
3850 cygwin*)
3851 target_os=cygwin
3852 shlibdir_default="$bindir_default"
3853 SLIBPREF="cyg"
3854 SLIBSUF=".dll"
3855 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3856 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3857 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3858 SLIB_INSTALL_LINKS=
3859 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3860 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3861 objformat="win32"
3862 enable dos_paths
3863 ;;
3864 *-dos|freedos|opendos)
3865 network_extralibs="-lsocket"
3866 objformat="coff"
3867 enable dos_paths
3868 add_cppflags -U__STRICT_ANSI__
3869 ;;
3870 linux)
3871 enable dv1394
3872 enable section_data_rel_ro
3873 ;;
3874 irix*)
3875 target_os=irix
3876 ranlib="echo ignoring ranlib"
3877 ;;
3878 os/2*)
3879 ln_s="cp -f"
3880 objformat="aout"
3881 add_cppflags -D_GNU_SOURCE
3882 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3883 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3884 LIBSUF="_s.a"
3885 SLIBPREF=""
3886 SLIBSUF=".dll"
3887 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3888 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3889 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3890 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3891 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3892 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3893 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3894 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3895 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3896 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3897 enable dos_paths
3898 ;;
3899 gnu/kfreebsd)
3900 add_cppflags -D_BSD_SOURCE
3901 ;;
3902 gnu)
3903 ;;
3904 qnx)
3905 add_cppflags -D_QNX_SOURCE
3906 network_extralibs="-lsocket"
3907 ;;
3908 symbian)
3909 SLIBSUF=".dll"
3910 enable dos_paths
3911 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3912 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3913 add_ldflags -Wl,--target1-abs,--no-undefined \
3914 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3915 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3916 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3917 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3918 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3919 ;;
3920 osf1)
3921 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3922 ;;
3923 minix)
3924 ;;
3925 plan9)
3926 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3927 -D_REENTRANT_SOURCE \
3928 -D_RESEARCH_SOURCE \
3929 -DFD_SETSIZE=96 \
3930 -DHAVE_SOCK_OPTS
3931 add_compat strtod.o strtod=avpriv_strtod
3932 network_extralibs='-lbsd'
3933 exeobjs=compat/plan9/main.o
3934 cp_f='cp'
3935 ;;
3936 none)
3937 ;;
3938 *)
3939 die "Unknown OS '$target_os'."
3940 ;;
3941 esac
3942
3943 # determine libc flavour
3944
3945 probe_libc(){
3946 pfx=$1
3947 pfx_no_=${pfx%_}
3948 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3949 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3950 eval ${pfx}libc_type=uclibc
3951 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3952 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3953 eval ${pfx}libc_type=glibc
3954 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3955 # MinGW headers can be installed on Cygwin, so check for newlib first.
3956 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3957 eval ${pfx}libc_type=newlib
3958 add_${pfx}cppflags -U__STRICT_ANSI__
3959 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3960 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3961 eval ${pfx}libc_type=mingw64
3962 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3963 eval test \$${pfx_no_}cc_type = "gcc" &&
3964 add_${pfx}cppflags -D__printf__=__gnu_printf__
3965 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3966 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3967 eval ${pfx}libc_type=mingw32
3968 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3969 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3970 die "ERROR: MinGW32 runtime version must be >= 3.15."
3971 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3972 eval test \$${pfx_no_}cc_type = "gcc" &&
3973 add_${pfx}cppflags -D__printf__=__gnu_printf__
3974 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3975 eval ${pfx}libc_type=msvcrt
3976 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3977 if [ "$pfx" = host_ ]; then
3978 add_host_cppflags -Dsnprintf=_snprintf
3979 else
3980 add_compat strtod.o strtod=avpriv_strtod
3981 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3982 _snprintf=avpriv_snprintf \
3983 vsnprintf=avpriv_vsnprintf
3984 fi
3985 fi
3986 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3987 # 0x601 by default unless something else is set by the user.
3988 # This can easily lead to us detecting functions only present
3989 # in such new versions and producing binaries requiring windows 7.0.
3990 # Therefore explicitly set the default to XP unless the user has
3991 # set something else on the command line.
3992 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3993 # family. For these cases, configure is free to use any functions
3994 # found in the SDK headers by default. (Alternatively, we could force
3995 # _WIN32_WINNT to 0x0602 in that case.)
3996 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3997 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3998 #ifdef WINAPI_FAMILY
3999 #include <winapifamily.h>
4000 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4001 #error not desktop
4002 #endif
4003 #endif
4004 EOF
4005 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4006 eval ${pfx}libc_type=klibc
4007 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4008 eval ${pfx}libc_type=bionic
4009 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4010 eval ${pfx}libc_type=solaris
4011 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4012 else
4013 eval ${pfx}libc_type=default
4014 add_${pfx}cppflags -D_DEFAULT_SOURCE
4015 fi
4016 }
4017
4018 probe_libc
4019 test -n "$libc_type" && enable libc_$libc_type
4020 probe_libc host_
4021 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4022
4023 case $libc_type in
4024 bionic)
4025 add_compat strtod.o strtod=avpriv_strtod
4026 ;;
4027 esac
4028
4029 # hacks for compiler/libc/os combinations
4030
4031 if enabled_all tms470 libc_glibc; then
4032 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4033 add_cppflags -D__USER_LABEL_PREFIX__=
4034 add_cppflags -D__builtin_memset=memset
4035 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4036 add_cflags -pds=48 # incompatible redefinition of macro
4037 fi
4038
4039 if enabled_all ccc libc_glibc; then
4040 add_ldflags -Wl,-z,now # calls to libots crash without this
4041 fi
4042
4043 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4044 add_cppflags '-I\$(SRC_PATH)/compat/float'
4045
4046 esc(){
4047 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4048 }
4049
4050 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4051
4052 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4053
4054 set_default $PATHS_LIST
4055 set_default nm
4056
4057 # we need to build at least one lib type
4058 if ! enabled_any static shared; then
4059 cat <<EOF
4060 At least one library type must be built.
4061 Specify --enable-static to build the static libraries or --enable-shared to
4062 build the shared libraries as well. To only build the shared libraries specify
4063 --disable-static in addition to --enable-shared.
4064 EOF
4065 exit 1
4066 fi
4067
4068 die_license_disabled() {
4069 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4070 }
4071
4072 die_license_disabled gpl libcdio
4073 die_license_disabled gpl libx264
4074 die_license_disabled gpl libx265
4075 die_license_disabled gpl libxavs
4076 die_license_disabled gpl libxvid
4077 die_license_disabled gpl x11grab
4078
4079 die_license_disabled nonfree cuda
4080 die_license_disabled nonfree libfaac
4081 die_license_disabled nonfree libfdk_aac
4082 die_license_disabled nonfree libnpp
4083 die_license_disabled nonfree openssl
4084
4085 die_license_disabled version3 libopencore_amrnb
4086 die_license_disabled version3 libopencore_amrwb
4087 die_license_disabled version3 libvo_aacenc
4088 die_license_disabled version3 libvo_amrwbenc
4089
4090 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4091
4092 disabled optimizations || check_cflags -fomit-frame-pointer
4093
4094 enable_weak_pic() {
4095 disabled pic && return
4096 enable pic
4097 add_cppflags -DPIC
4098 case "$target_os" in
4099 mingw*|cygwin*)
4100 ;;
4101 *)
4102 add_cflags -fPIC
4103 ;;
4104 esac
4105 add_asflags -fPIC
4106 }
4107
4108 enabled pic && enable_weak_pic
4109
4110 check_cc <<EOF || die "Symbol mangling check failed."
4111 int ff_extern;
4112 EOF
4113 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4114 extern_prefix=${sym%%ff_extern*}
4115
4116 check_cc <<EOF && enable_weak inline_asm
4117 void foo(void) { __asm__ volatile ("" ::); }
4118 EOF
4119
4120 _restrict=
4121 for restrict_keyword in restrict __restrict__ __restrict; do
4122 check_cc <<EOF && _restrict=$restrict_keyword && break
4123 void foo(char * $restrict_keyword p);
4124 EOF
4125 done
4126
4127 check_cc <<EOF && enable pragma_deprecated
4128 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4129 EOF
4130
4131 check_cc <<EOF && enable attribute_packed
4132 struct { int x; } __attribute__((packed)) x;
4133 EOF
4134
4135 check_cc <<EOF && enable attribute_may_alias
4136 union { int x; } __attribute__((may_alias)) x;
4137 EOF
4138
4139 check_cc <<EOF || die "endian test failed"
4140 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4141 EOF
4142 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4143
4144 check_gas() {
4145 log "check_gas using '$as' as AS"
4146 # :vararg is used on aarch64, arm and ppc altivec
4147 check_as <<EOF || return 1
4148 .macro m n, y:vararg=0
4149 \n: .int \y
4150 .endm
4151 m x
4152 EOF
4153 # .altmacro is only used in arm asm
4154 ! enabled arm || check_as <<EOF || return 1
4155 .altmacro
4156 EOF
4157 enable gnu_as
4158 return 0
4159 }
4160
4161 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4162 nogas=:
4163 enabled_any arm aarch64 && nogas=die
4164 enabled_all ppc altivec && nogas=warn
4165 as_noop=-v
4166
4167 case $as_type in
4168 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4169 gcc) gaspp_as_type=gas ;;
4170 *) gaspp_as_type=$as_type ;;
4171 esac
4172
4173 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4174
4175 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4176 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4177
4178 if ! check_gas ; then
4179 as=${gas:=$as}
4180 check_gas || \
4181 $nogas "GNU assembler not found, install/update gas-preprocessor"
4182 fi
4183
4184 check_as <<EOF && enable as_func
4185 .func test
4186 .endfunc
4187 EOF
4188 fi
4189
4190 check_inline_asm inline_asm_labels '"1:\n"'
4191
4192 if enabled aarch64; then
4193 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4194 # internal assembler in clang 3.3 does not support this instruction
4195 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4196 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4197
4198 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4199
4200 elif enabled alpha; then
4201
4202 check_cflags -mieee
4203
4204 elif enabled arm; then
4205
4206 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4207 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4208 enabled thumb && check_cflags -mthumb || check_cflags -marm
4209
4210 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4211 enable vfp_args
4212 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4213 enable vfp_args
4214 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4215 case "${cross_prefix:-$cc}" in
4216 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4217 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4218 __asm__ (".eabi_attribute 28, 1");
4219 int main(void) { return 0; }
4220 EOF
4221 esac
4222 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4223 fi
4224
4225 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4226 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4227 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4228 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4229 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4230 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4231
4232 [ $target_os = linux ] || [ $target_os = android ] ||
4233 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4234 $ARCH_EXT_LIST_ARM
4235
4236 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4237
4238 check_as <<EOF && enable as_dn_directive
4239 ra .dn d0.i16
4240 .unreq ra
4241 EOF
4242
4243 # llvm's integrated assembler supports .object_arch from llvm 3.5
4244 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4245 .object_arch armv4
4246 EOF
4247
4248 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4249
4250 elif enabled mips; then
4251
4252 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4253
4254 # make sure that only an instruction set is enabled
4255 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4256
4257 if enabled mips64; then
4258 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4259 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4260 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4261 else
4262 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4263 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4264 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4265 fi
4266
4267 elif enabled parisc; then
4268
4269 if enabled gcc; then
4270 case $($cc -dumpversion) in
4271 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4272 esac
4273 fi
4274
4275 elif enabled ppc; then
4276
4277 enable local_aligned_8 local_aligned_16
4278
4279 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4280 check_inline_asm ibm_asm '"add 0, 0, 0"'
4281 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4282 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4283
4284 # AltiVec flags: The FSF version of GCC differs from the Apple version
4285 if enabled altivec; then
4286 check_cflags -maltivec -mabi=altivec &&
4287 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4288 check_cflags -faltivec
4289
4290 # check if our compiler supports Motorola AltiVec C API
4291 check_cc <<EOF || disable altivec
4292 $inc_altivec_h
4293 int main(void) {
4294 vector signed int v1 = (vector signed int) { 0 };
4295 vector signed int v2 = (vector signed int) { 1 };
4296 v1 = vec_add(v1, v2);
4297 return 0;
4298 }
4299 EOF
4300
4301 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4302 fi
4303
4304 if enabled vsx; then
4305 check_cflags -mvsx &&
4306 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4307 fi
4308
4309 if enabled power8; then
4310 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4311 fi
4312
4313 elif enabled x86; then
4314
4315 check_builtin rdtsc intrin.h "__rdtsc()"
4316 check_builtin mm_empty mmintrin.h "_mm_empty()"
4317
4318 enable local_aligned_8 local_aligned_16
4319
4320 # check whether EBP is available on x86
4321 # As 'i' is stored on the stack, this program will crash
4322 # if the base pointer is used to access it because the
4323 # base pointer is cleared in the inline assembly code.
4324 check_exec_crash <<EOF && enable ebp_available
4325 volatile int i=0;
4326 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4327 return i;
4328 EOF
4329
4330 # check whether EBX is available on x86
4331 check_inline_asm ebx_available '""::"b"(0)' &&
4332 check_inline_asm ebx_available '"":::"%ebx"'
4333
4334 # check whether xmm clobbers are supported
4335 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4336
4337 # check whether binutils is new enough to compile SSSE3/MMXEXT
4338 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4339 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4340
4341 if ! disabled_any asm mmx yasm; then
4342 if check_cmd $yasmexe --version; then
4343 enabled x86_64 && yasm_extra="-m amd64"
4344 yasm_debug="-g dwarf2"
4345 elif check_cmd nasm -v; then
4346 yasmexe=nasm
4347 yasm_debug="-g -F dwarf"
4348 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4349 fi
4350
4351 YASMFLAGS="-f $objformat $yasm_extra"
4352 enabled pic && append YASMFLAGS "-DPIC"
4353 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4354 case "$objformat" in
4355 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4356 esac
4357
4358 check_yasm "movbe ecx, [5]" && enable yasm ||
4359 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4360 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4361 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4362 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4363 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4364 check_yasm "CPU amdnop" || disable cpunop
4365 fi
4366
4367 case "$cpu" in
4368 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4369 disable fast_clz
4370 ;;
4371 esac
4372
4373 fi
4374
4375 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4376
4377 check_ldflags -Wl,--as-needed
4378
4379 if check_func dlopen; then
4380 ldl=
4381 elif check_func dlopen -ldl; then