lavfi: add a QSV scaling filter
[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='$ldl'
2407 hqdn3d_filter_deps="gpl"
2408 interlace_filter_deps="gpl"
2409 ocv_filter_deps="libopencv"
2410 resample_filter_deps="avresample"
2411 scale_filter_deps="swscale"
2412 scale_qsv_filter_deps="libmfx"
2413 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2414
2415 # examples
2416 avcodec_example_deps="avcodec avutil"
2417 filter_audio_example_deps="avfilter avutil"
2418 metadata_example_deps="avformat avutil"
2419 output_example_deps="avcodec avformat avutil swscale"
2420 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2421 transcode_aac_example_deps="avcodec avformat avresample"
2422
2423 # libraries, in linking order
2424 avcodec_deps="avutil"
2425 avdevice_deps="avformat avcodec avutil"
2426 avfilter_deps="avutil"
2427 avformat_deps="avcodec avutil"
2428 avresample_deps="avutil"
2429 swscale_deps="avutil"
2430
2431 # programs
2432 avconv_deps="avcodec avfilter avformat avresample swscale"
2433 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2434 fps_filter null_filter resample_filter scale_filter
2435 setpts_filter trim_filter"
2436 avplay_deps="avcodec avfilter avformat avresample sdl"
2437 avplay_libs='$sdl_libs'
2438 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2439 avprobe_deps="avcodec avformat"
2440
2441 # documentation
2442 pod2man_deps="doc"
2443 texi2html_deps="doc"
2444
2445 # default parameters
2446
2447 logfile="config.log"
2448
2449 # installation paths
2450 prefix_default="/usr/local"
2451 bindir_default='${prefix}/bin'
2452 datadir_default='${prefix}/share/avconv'
2453 docdir_default='${prefix}/share/doc/libav'
2454 incdir_default='${prefix}/include'
2455 libdir_default='${prefix}/lib'
2456 mandir_default='${prefix}/share/man'
2457 shlibdir_default="$libdir_default"
2458
2459 # toolchain
2460 ar_default="ar"
2461 cc_default="gcc"
2462 host_cc_default="gcc"
2463 cp_f="cp -f"
2464 ln_s="ln -s -f"
2465 nm_default="nm -g"
2466 objformat="elf"
2467 pkg_config_default=pkg-config
2468 ranlib="ranlib"
2469 strip="strip"
2470 version_script='--version-script'
2471 yasmexe="yasm"
2472
2473 # machine
2474 arch_default=$(uname -m)
2475 cpu="generic"
2476 intrinsics="none"
2477
2478 # OS
2479 target_os_default=$(tolower $(uname -s))
2480 host_os=$target_os_default
2481
2482 # configurable options
2483 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2484
2485 enable asm
2486 enable debug
2487 enable doc
2488 enable faan faandct faanidct
2489 enable optimizations
2490 enable safe_bitstream_reader
2491 enable static
2492 enable swscale_alpha
2493 enable valgrind_backtrace
2494
2495 # By default, enable only those hwaccels that have no external dependencies.
2496 enable d3d11va dxva2 vda vdpau
2497
2498 # build settings
2499 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2500 LIBPREF="lib"
2501 LIBSUF=".a"
2502 FULLNAME='$(NAME)$(BUILDSUF)'
2503 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2504 SLIBPREF="lib"
2505 SLIBSUF=".so"
2506 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2507 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2508 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2509 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2510 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2511 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2512 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2513
2514 asflags_filter=echo
2515 cflags_filter=echo
2516 ldflags_filter=echo
2517
2518 AS_C='-c'
2519 AS_O='-o $@'
2520 CC_C='-c'
2521 CC_E='-E -o $@'
2522 CC_O='-o $@'
2523 OBJCC_C='-c'
2524 OBJCC_E='-E -o $@'
2525 OBJCC_O='-o $@'
2526 LD_O='-o $@'
2527 LD_LIB='-l%'
2528 LD_PATH='-L'
2529 HOSTCC_C='-c'
2530 HOSTCC_E='-E -o $@'
2531 HOSTCC_O='-o $@'
2532 HOSTLD_O='-o $@'
2533
2534 host_libs='-lm'
2535 host_cflags_filter=echo
2536 host_ldflags_filter=echo
2537
2538 target_path='$(CURDIR)'
2539
2540 # since the object filename is not given with the -MM flag, the compiler
2541 # is only able to print the basename, and we must add the path ourselves
2542 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2543 DEPFLAGS='-MM'
2544
2545 # find source path
2546 if test -f configure; then
2547 source_path=.
2548 else
2549 source_path=$(cd $(dirname "$0"); pwd)
2550 echo "$source_path" | grep -q '[[:blank:]]' &&
2551 die "Out of tree builds are impossible with whitespace in source path."
2552 test -e "$source_path/config.h" &&
2553 die "Out of tree builds are impossible with config.h in source dir."
2554 fi
2555
2556 for v in "$@"; do
2557 r=${v#*=}
2558 l=${v%"$r"}
2559 r=$(sh_quote "$r")
2560 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2561 done
2562
2563 find_things(){
2564 thing=$1
2565 pattern=$2
2566 file=$source_path/$3
2567 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2568 }
2569
2570 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2571 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2572 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2573 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2574 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2575 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2576 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2577 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2578 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2579
2580 find_things_extern(){
2581 thing=$1
2582 pattern=$2
2583 file=$source_path/$3
2584 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2585 }
2586
2587 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2588 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2589
2590 ALL_COMPONENTS="
2591 $BSF_LIST
2592 $DECODER_LIST
2593 $DEMUXER_LIST
2594 $ENCODER_LIST
2595 $FILTER_LIST
2596 $HWACCEL_LIST
2597 $INDEV_LIST
2598 $MUXER_LIST
2599 $OUTDEV_LIST
2600 $PARSER_LIST
2601 $PROTOCOL_LIST
2602 "
2603
2604 for n in $COMPONENT_LIST; do
2605 v=$(toupper ${n%s})_LIST
2606 eval enable \$$v
2607 eval ${n}_if_any="\$$v"
2608 done
2609
2610 enable $ARCH_EXT_LIST
2611
2612 die_unknown(){
2613 echo "Unknown option \"$1\"."
2614 echo "See $0 --help for available options."
2615 exit 1
2616 }
2617
2618 print_3_columns() {
2619 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2620 }
2621
2622 show_list() {
2623 suffix=_$1
2624 shift
2625 echo $* | sed s/$suffix//g | print_3_columns
2626 exit 0
2627 }
2628
2629 rand_list(){
2630 IFS=', '
2631 set -- $*
2632 unset IFS
2633 for thing; do
2634 comp=${thing%:*}
2635 prob=${thing#$comp}
2636 prob=${prob#:}
2637 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2638 echo "prob ${prob:-0.5}"
2639 printf '%s\n' $comp
2640 done
2641 }
2642
2643 do_random(){
2644 action=$1
2645 shift
2646 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2647 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2648 }
2649
2650 for opt do
2651 optval="${opt#*=}"
2652 case "$opt" in
2653 --extra-ldflags=*)
2654 add_ldflags $optval
2655 ;;
2656 --extra-ldexeflags=*)
2657 add_ldexeflags $optval
2658 ;;
2659 --extra-libs=*)
2660 add_extralibs $optval
2661 ;;
2662 --disable-devices)
2663 disable $INDEV_LIST $OUTDEV_LIST
2664 ;;
2665 --enable-debug=*)
2666 debuglevel="$optval"
2667 ;;
2668 --disable-programs)
2669 disable $PROGRAM_LIST
2670 ;;
2671 --disable-everything)
2672 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2673 ;;
2674 --disable-all)
2675 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2676 disable $LIBRARY_LIST $PROGRAM_LIST doc
2677 ;;
2678 --enable-random|--disable-random)
2679 action=${opt%%-random}
2680 do_random ${action#--} $COMPONENT_LIST
2681 ;;
2682 --enable-random=*|--disable-random=*)
2683 action=${opt%%-random=*}
2684 do_random ${action#--} $optval
2685 ;;
2686 --enable-*=*|--disable-*=*)
2687 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2688 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2689 eval list=\$$(toupper $thing)_LIST
2690 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2691 $action $(filter "$name" $list)
2692 ;;
2693 --enable-avserver|--disable-avserver*)
2694 warn "avserver has been removed, the ${opt} option is only"\
2695 "provided for compatibility and will be removed in the future"
2696 ;;
2697 --enable-?*|--disable-?*)
2698 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2699 if is_in $option $COMPONENT_LIST; then
2700 test $action = disable && action=unset
2701 eval $action \$$(toupper ${option%s})_LIST
2702 elif is_in $option $CMDLINE_SELECT; then
2703 $action $option
2704 else
2705 die_unknown $opt
2706 fi
2707 ;;
2708 --list-*)
2709 NAME="${opt#--list-}"
2710 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2711 NAME=${NAME%s}
2712 eval show_list $NAME \$$(toupper $NAME)_LIST
2713 ;;
2714 --help|-h) show_help
2715 ;;
2716 *)
2717 optname="${opt%%=*}"
2718 optname="${optname#--}"
2719 optname=$(echo "$optname" | sed 's/-/_/g')
2720 if is_in $optname $CMDLINE_SET; then
2721 eval $optname='$optval'
2722 elif is_in $optname $CMDLINE_APPEND; then
2723 append $optname "$optval"
2724 else
2725 die_unknown $opt
2726 fi
2727 ;;
2728 esac
2729 done
2730
2731 for e in $env; do
2732 eval "export $e"
2733 done
2734
2735 disabled logging && logfile=/dev/null
2736
2737 # Disable all the library-specific components if the library itself
2738 # is disabled, see AVCODEC_LIST and following _LIST variables.
2739
2740 disable_components(){
2741 disabled ${1} && disable $(
2742 eval components="\$$(toupper ${1})_COMPONENTS"
2743 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2744 )
2745 }
2746
2747 map 'disable_components $v' $LIBRARY_LIST
2748
2749 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2750 set >> $logfile
2751
2752 case "$toolchain" in
2753 *-asan)
2754 cc_default="${toolchain%-asan}"
2755 add_cflags -fsanitize=address
2756 add_ldflags -fsanitize=address
2757 ;;
2758 *-msan)
2759 cc_default="${toolchain%-msan}"
2760 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2761 add_ldflags -fsanitize=memory
2762 ;;
2763 *-tsan)
2764 cc_default="${toolchain%-tsan}"
2765 add_cflags -fsanitize=thread -pie
2766 add_ldflags -fsanitize=thread -pie
2767 case "$toolchain" in
2768 gcc-tsan)
2769 add_cflags -fPIC
2770 add_ldflags -fPIC
2771 ;;
2772 esac
2773 ;;
2774 *-usan)
2775 cc_default="${toolchain%-usan}"
2776 add_cflags -fsanitize=undefined
2777 add_ldflags -fsanitize=undefined
2778 case "$toolchain" in
2779 clang-usan)
2780 add_cflags -O1
2781 ;;
2782 esac
2783 ;;
2784 valgrind-*)
2785 target_exec_default="valgrind"
2786 case "$toolchain" in
2787 valgrind-massif)
2788 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2789 ;;
2790 valgrind-memcheck)
2791 target_exec_args="--track-origins=yes --leak-check=full"
2792 ;;
2793 esac
2794 ;;
2795 msvc)
2796 # Check whether the current MSVC version needs the C99 converter.
2797 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2798 # support enough of C99 to build libav. Default to the new
2799 # behaviour if the regexp was unable to match anything, since this
2800 # successfully parses the version number of existing supported
2801 # versions that require the converter (MSVC 2010 and 2012).
2802 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2803 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2804 cc_default="cl"
2805 else
2806 cc_default="c99wrap cl"
2807 fi
2808 ld_default="$source_path/compat/windows/mslink"
2809 nm_default="dumpbin -symbols"
2810 ar_default="lib"
2811 case "$arch" in
2812 arm*)
2813 as_default="armasm"
2814 ;;
2815 esac
2816 target_os_default="win32"
2817 # Use a relative path for TMPDIR. This makes sure all the
2818 # ffconf temp files are written with a relative path, avoiding
2819 # issues with msys/win32 path conversion for MSVC parameters
2820 # such as -Fo<file> or -out:<file>.
2821 TMPDIR=.
2822 ;;
2823 icl)
2824 cc_default="icl"
2825 ld_default="xilink"
2826 nm_default="dumpbin -symbols"
2827 ar_default="xilib"
2828 target_os_default="win32"
2829 TMPDIR=.
2830 ;;
2831 gcov)
2832 add_cflags -fprofile-arcs -ftest-coverage
2833 add_ldflags -fprofile-arcs -ftest-coverage
2834 ;;
2835 llvm-cov)
2836 add_cflags -fprofile-arcs -ftest-coverage
2837 add_ldflags --coverage
2838 ;;
2839 hardened)
2840 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2841 add_cflags -fno-strict-overflow -fstack-protector-all
2842 add_ldflags -Wl,-z,relro -Wl,-z,now
2843 ;;
2844 ?*)
2845 die "Unknown toolchain $toolchain"
2846 ;;
2847 esac
2848
2849 test -n "$cross_prefix" && enable cross_compile
2850
2851 if enabled cross_compile; then
2852 test -n "$arch" && test -n "$target_os" ||
2853 die "Must specify target arch and OS when cross-compiling"
2854 fi
2855
2856 ar_default="${cross_prefix}${ar_default}"
2857 cc_default="${cross_prefix}${cc_default}"
2858 occ_default="${cross_prefix}${occ_default}"
2859 nm_default="${cross_prefix}${nm_default}"
2860 pkg_config_default="${cross_prefix}${pkg_config_default}"
2861 ranlib="${cross_prefix}${ranlib}"
2862 strip="${cross_prefix}${strip}"
2863
2864 sysinclude_default="${sysroot}/usr/include"
2865
2866 set_default arch cc pkg_config sysinclude target_exec target_os
2867 enabled cross_compile || host_cc_default=$cc
2868 set_default host_cc
2869
2870 if ! $pkg_config --version >/dev/null 2>&1; then
2871 warn "$pkg_config not found, library detection may fail."
2872 pkg_config=false
2873 fi
2874
2875 exesuf() {
2876 case $1 in
2877 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2878 esac
2879 }
2880
2881 EXESUF=$(exesuf $target_os)
2882 HOSTEXESUF=$(exesuf $host_os)
2883
2884 # set temporary file name
2885 : ${TMPDIR:=$TEMPDIR}
2886 : ${TMPDIR:=$TMP}
2887 : ${TMPDIR:=/tmp}
2888
2889 if ! check_cmd mktemp -u XXXXXX; then
2890 # simple replacement for missing mktemp
2891 # NOT SAFE FOR GENERAL USE
2892 mktemp(){
2893 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2894 }
2895 fi
2896
2897 tmpfile(){
2898 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2899 (set -C; exec > $tmp) 2>/dev/null ||
2900 die "Unable to create temporary file in $TMPDIR."
2901 append TMPFILES $tmp
2902 eval $1=$tmp
2903 }
2904
2905 trap 'rm -f -- $TMPFILES' EXIT
2906
2907 tmpfile TMPASM .asm
2908 tmpfile TMPC .c
2909 tmpfile TMPE $EXESUF
2910 tmpfile TMPH .h
2911 tmpfile TMPO .o
2912 tmpfile TMPS .S
2913 tmpfile TMPSH .sh
2914 tmpfile TMPV .ver
2915
2916 unset -f mktemp
2917
2918 chmod +x $TMPE
2919
2920 # make sure we can execute files in $TMPDIR
2921 cat > $TMPSH 2>> $logfile <<EOF
2922 #! /bin/sh
2923 EOF
2924 chmod +x $TMPSH >> $logfile 2>&1
2925 if ! $TMPSH >> $logfile 2>&1; then
2926 cat <<EOF
2927 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2928 variable to another directory and make sure that it is not mounted noexec.
2929 EOF
2930 die "Sanity test failed."
2931 fi
2932
2933 armasm_flags(){
2934 for flag; do
2935 case $flag in
2936 # Filter out MSVC cl.exe options from cflags that shouldn't
2937 # be passed to gas-preprocessor
2938 -M[TD]*) ;;
2939 *) echo $flag ;;
2940 esac
2941 done
2942 }
2943
2944 ccc_flags(){
2945 for flag; do
2946 case $flag in
2947 -std=c99) echo -c99 ;;
2948 -mcpu=*) echo -arch ${flag#*=} ;;
2949 -mieee) echo -ieee ;;
2950 -O*|-fast) echo $flag ;;
2951 -fno-math-errno) echo -assume nomath_errno ;;
2952 -g) echo -g3 ;;
2953 -Wall) echo -msg_enable level2 ;;
2954 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2955 -Wl,*) echo $flag ;;
2956 -f*|-W*) ;;
2957 *) echo $flag ;;
2958 esac
2959 done
2960 }
2961
2962 cparser_flags(){
2963 for flag; do
2964 case $flag in
2965 -Wno-switch) echo -Wno-switch-enum ;;
2966 -Wno-format-zero-length) ;;
2967 -Wdisabled-optimization) ;;
2968 -Wno-pointer-sign) echo -Wno-other ;;
2969 *) echo $flag ;;
2970 esac
2971 done
2972 }
2973
2974 msvc_common_flags(){
2975 for flag; do
2976 case $flag in
2977 # In addition to specifying certain flags under the compiler
2978 # specific filters, they must be specified here as well or else the
2979 # generic catch all at the bottom will print the original flag.
2980 -Wall) ;;
2981 -std=c99) ;;
2982 # Common flags
2983 -fomit-frame-pointer) ;;
2984 -g) echo -Z7 ;;
2985 -fno-math-errno) ;;
2986 -fno-common) ;;
2987 -fno-signed-zeros) ;;
2988 -fPIC) ;;
2989 -mthumb) ;;
2990 -march=*) ;;
2991 -lz) echo zlib.lib ;;
2992 -lavifil32) echo vfw32.lib ;;
2993 -lavicap32) echo vfw32.lib user32.lib ;;
2994 -lx264) echo libx264.lib ;;
2995 -l*) echo ${flag#-l}.lib ;;
2996 -L*) echo -libpath:${flag#-L} ;;
2997 *) echo $flag ;;
2998 esac
2999 done
3000 }
3001
3002 msvc_flags(){
3003 msvc_common_flags "$@"
3004 for flag; do
3005 case $flag in
3006 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3007 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3008 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3009 -wd4273 -wd4554 -wd4701 ;;
3010 esac
3011 done
3012 }
3013
3014 icl_flags(){
3015 msvc_common_flags "$@"
3016 for flag; do
3017 case $flag in
3018 # Despite what Intel's documentation says -Wall, which is supported
3019 # on Windows, does enable remarks so disable them here.
3020 -Wall) echo $flag -Qdiag-disable:remark ;;
3021 -std=c99) echo -Qstd=c99 ;;
3022 esac
3023 done
3024 }
3025
3026 pgi_flags(){
3027 for flag; do
3028 case $flag in
3029 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3030 -fomit-frame-pointer) echo -Mnoframe ;;
3031 -g) echo -gopt ;;
3032 *) echo $flag ;;
3033 esac
3034 done
3035 }
3036
3037 suncc_flags(){
3038 for flag; do
3039 case $flag in
3040 -march=*|-mcpu=*)
3041 case "${flag#*=}" in
3042 native) echo -xtarget=native ;;
3043 v9|niagara) echo -xarch=sparc ;;
3044 ultrasparc) echo -xarch=sparcvis ;;
3045 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3046 i586|pentium) echo -xchip=pentium ;;
3047 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3048 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3049 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3050 pentium4*) echo -xtarget=pentium4 ;;
3051 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3052 *-sse3) echo -xarch=sse3 ;;
3053 core2) echo -xarch=ssse3 -xchip=core2 ;;
3054 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3055 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3056 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3057 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3058 k8|opteron|athlon64|athlon-fx)
3059 echo -xarch=sse2a ;;
3060 athlon*) echo -xarch=pentium_proa ;;
3061 esac
3062 ;;
3063 -std=c99) echo -xc99 ;;
3064 -fomit-frame-pointer) echo -xregs=frameptr ;;
3065 -fPIC) echo -KPIC -xcode=pic32 ;;
3066 -W*,*) echo $flag ;;
3067 -f*-*|-W*|-mimpure-text) ;;
3068 -shared) echo -G ;;
3069 *) echo $flag ;;
3070 esac
3071 done
3072 }
3073
3074 tms470_flags(){
3075 for flag; do
3076 case $flag in
3077 -march=*|-mcpu=*)
3078 case "${flag#*=}" in
3079 armv7-a|cortex-a*) echo -mv=7a8 ;;
3080 armv7-r|cortex-r*) echo -mv=7r4 ;;
3081 armv7-m|cortex-m*) echo -mv=7m3 ;;
3082 armv6*|arm11*) echo -mv=6 ;;
3083 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3084 echo -mv=5e ;;
3085 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3086 esac
3087 ;;
3088 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3089 -mfpu=vfp) echo --float_support=vfpv2 ;;
3090 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3091 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3092 -msoft-float) echo --float_support=vfplib ;;
3093 -O[0-3]|-mf=*) echo $flag ;;
3094 -g) echo -g -mn ;;
3095 -pds=*) echo $flag ;;
3096 -D*|-I*) echo $flag ;;
3097 --gcc|--abi=*) echo $flag ;;
3098 -me) echo $flag ;;
3099 esac
3100 done
3101 }
3102
3103 probe_cc(){
3104 pfx=$1
3105 _cc=$2
3106
3107 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3108 unset _ld_o _ldflags _ld_lib _ld_path
3109 unset _depflags _DEPCMD _DEPFLAGS
3110 _flags_filter=echo
3111
3112 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3113 _type=llvm_gcc
3114 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3115 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3116 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3117 _cflags_speed='-O3'
3118 _cflags_size='-Os'
3119 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3120 _type=gcc
3121 gcc_version=$($_cc --version | head -n1)
3122 gcc_basever=$($_cc -dumpversion)
3123 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3124 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3125 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3126 if ! $_cc -dumpversion | grep -q '^2\.'; then
3127 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3128 fi
3129 _cflags_speed='-O3'
3130 _cflags_size='-Os'
3131 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3132 _type=icc
3133 _ident=$($_cc --version | head -n1)
3134 _depflags='-MMD'
3135 _cflags_speed='-O3'
3136 _cflags_size='-Os'
3137 _cflags_noopt='-O1'
3138 elif $_cc -v 2>&1 | grep -q xlc; then
3139 _type=xlc
3140 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3141 _cflags_speed='-O5'
3142 _cflags_size='-O5 -qcompact'
3143 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3144 _type=ccc
3145 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3146 _DEPFLAGS='-M'
3147 _cflags_speed='-fast'
3148 _cflags_size='-O1'
3149 _flags_filter=ccc_flags
3150 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3151 test -d "$sysroot" || die "No valid sysroot specified."
3152 _type=armcc
3153 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3154 armcc_conf="$PWD/armcc.conf"
3155 $_cc --arm_linux_configure \
3156 --arm_linux_config_file="$armcc_conf" \
3157 --configure_sysroot="$sysroot" \
3158 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3159 die "Error creating armcc configuration file."
3160 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3161 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3162 as_default="${cross_prefix}gcc"
3163 _depflags='-MMD'
3164 _cflags_speed='-O3'
3165 _cflags_size='-Os'
3166 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3167 _type=tms470
3168 _ident=$($_cc -version | head -n1 | tr -s ' ')
3169 _flags='--gcc --abi=eabi -me'
3170 _cc_e='-ppl -fe=$@'
3171 _cc_o='-fe=$@'
3172 _depflags='-ppa -ppd=$(@:.o=.d)'
3173 _cflags_speed='-O3 -mf=5'
3174 _cflags_size='-O3 -mf=2'
3175 _flags_filter=tms470_flags
3176 elif $_cc -v 2>&1 | grep -q clang; then
3177 _type=clang
3178 _ident=$($_cc --version 2>/dev/null | head -n1)
3179 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3180 _cflags_speed='-O3'
3181 _cflags_size='-Os'
3182 elif $_cc -V 2>&1 | grep -q Sun; then
3183 _type=suncc
3184 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3185 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3186 _DEPFLAGS='-xM1 -xc99'
3187 _ldflags='-std=c99'
3188 _cflags_speed='-O5'
3189 _cflags_size='-O5 -xspace'
3190 _flags_filter=suncc_flags
3191 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3192 _type=pathscale
3193 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3194 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3195 _cflags_speed='-O2'
3196 _cflags_size='-Os'
3197 _flags_filter='filter_out -Wdisabled-optimization'
3198 elif $_cc -v 2>&1 | grep -q Open64; then
3199 _type=open64
3200 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3201 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3202 _cflags_speed='-O2'
3203 _cflags_size='-Os'
3204 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3205 elif $_cc -V 2>&1 | grep -q Portland; then
3206 _type=pgi
3207 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3208 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3209 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3210 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3211 _cflags_noopt="-O1"
3212 _flags_filter=pgi_flags
3213 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3214 _type=armasm
3215 _ident=$($_cc | head -n1)
3216 # 4509: "This form of conditional instruction is deprecated"
3217 _flags="-nologo -ignore 4509"
3218 _flags_filter=armasm_flags
3219 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3220 _type=msvc
3221 _ident=$($_cc 2>&1 | head -n1)
3222 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3223 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3224 _cflags_speed="-O2"
3225 _cflags_size="-O1"
3226 if $_cc -nologo- 2>&1 | grep -q Linker; then
3227 _ld_o='-out:$@'
3228 else
3229 _ld_o='-Fe$@'
3230 fi
3231 _cc_o='-Fo$@'
3232 _cc_e='-P -Fi$@'
3233 _flags_filter=msvc_flags
3234 _ld_lib='lib%.a'
3235 _ld_path='-libpath:'
3236 _flags='-nologo'
3237 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3238 elif $_cc 2>&1 | grep -q Intel; then
3239 _type=icl
3240 _ident=$($_cc 2>&1 | head -n1)
3241 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3242 # Not only is O3 broken on 13.x+ but it is slower on all previous
3243 # versions (tested) as well.
3244 _cflags_speed="-O2"
3245 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3246 if $_cc 2>&1 | grep -q Linker; then
3247 _ld_o='-out:$@'
3248 else
3249 _ld_o='-Fe$@'
3250 fi
3251 _cc_o='-Fo$@'
3252 _cc_e='-P'
3253 _flags_filter=icl_flags
3254 _ld_lib='lib%.a'
3255 _ld_path='-libpath:'
3256 # -Qdiag-error to make icl error when seeing certain unknown arguments
3257 _flags='-nologo -Qdiag-error:4044,10157'
3258 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3259 # with MSVC which enables it by default.
3260 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3261 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3262 _type=cparser
3263 _ident=$($_cc --version | head -n1)
3264 _depflags='-MMD'
3265 _cflags_speed='-O4'
3266 _cflags_size='-O2'
3267 _flags_filter=cparser_flags
3268 fi
3269
3270 eval ${pfx}_type=\$_type
3271 eval ${pfx}_ident=\$_ident
3272 }
3273
3274 set_ccvars(){
3275 eval ${1}_C=\${_cc_c-\${${1}_C}}
3276 eval ${1}_E=\${_cc_e-\${${1}_E}}
3277 eval ${1}_O=\${_cc_o-\${${1}_O}}
3278
3279 if [ -n "$_depflags" ]; then
3280 eval ${1}_DEPFLAGS=\$_depflags
3281 else
3282 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3283 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3284 eval DEP${1}FLAGS=\$_flags
3285 fi
3286 }
3287
3288 probe_cc cc "$cc"
3289 cflags_filter=$_flags_filter
3290 cflags_speed=$_cflags_speed
3291 cflags_size=$_cflags_size
3292 cflags_noopt=$_cflags_noopt
3293 add_cflags $_flags $_cflags
3294 cc_ldflags=$_ldflags
3295 set_ccvars CC
3296
3297 probe_cc hostcc "$host_cc"
3298 host_cflags_filter=$_flags_filter
3299 add_host_cflags $_flags $_cflags
3300 set_ccvars HOSTCC
3301
3302 test -n "$cc_type" && enable $cc_type ||
3303 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3304
3305 : ${as_default:=$cc}
3306 : ${objcc_default:=$cc}
3307 : ${dep_cc_default:=$cc}
3308 : ${ld_default:=$cc}
3309 : ${host_ld_default:=$host_cc}
3310 set_default ar as objcc dep_cc ld host_ld
3311
3312 probe_cc as "$as"
3313 asflags_filter=$_flags_filter
3314 add_asflags $_flags $_cflags
3315 set_ccvars AS
3316
3317 probe_cc objcc "$objcc"
3318 objcflags_filter=$_flags_filter
3319 add_objcflags $_flags $_cflags
3320 set_ccvars OBJC
3321
3322 probe_cc ld "$ld"
3323 ldflags_filter=$_flags_filter
3324 add_ldflags $_flags $_ldflags
3325 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3326 LD_O=${_ld_o-$LD_O}
3327 LD_LIB=${_ld_lib-$LD_LIB}
3328 LD_PATH=${_ld_path-$LD_PATH}
3329
3330 probe_cc hostld "$host_ld"
3331 host_ldflags_filter=$_flags_filter
3332 add_host_ldflags $_flags $_ldflags
3333 HOSTLD_O=${_ld_o-$HOSTLD_O}
3334
3335 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3336 probe_cc depcc "$dep_cc"
3337 CCDEP=${_DEPCMD:-$DEPCMD}
3338 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3339 DEPCCFLAGS=$_flags
3340 fi
3341
3342 if $ar 2>&1 | grep -q Microsoft; then
3343 arflags="-nologo"
3344 ar_o='-out:$@'
3345 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3346 arflags="rq"
3347 ar_o='$@'
3348 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3349 arflags='-Xany -r -c'
3350 ar_o='$@'
3351 else
3352 arflags="rc"
3353 ar_o='$@'
3354 fi
3355
3356 add_cflags $extra_cflags
3357 add_objcflags $extra_objcflags
3358 add_asflags $extra_cflags
3359
3360 if test -n "$sysroot"; then
3361 case "$cc_type" in
3362 gcc|llvm_gcc|clang)
3363 add_cppflags --sysroot="$sysroot"
3364 add_ldflags --sysroot="$sysroot"
3365 ;;
3366 tms470)
3367 add_cppflags -I"$sysinclude"
3368 add_ldflags --sysroot="$sysroot"
3369 ;;
3370 esac
3371 fi
3372
3373 if test "$cpu" = host; then
3374 enabled cross_compile &&
3375 die "--cpu=host makes no sense when cross-compiling."
3376
3377 case "$cc_type" in
3378 gcc|llvm_gcc)
3379 check_native(){
3380 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3381 sed -n "/cc1.*$1=/{
3382 s/.*$1=\\([^ ]*\\).*/\\1/
3383 p
3384 q
3385 }" $TMPE
3386 }
3387 cpu=$(check_native -march || check_native -mcpu)
3388 ;;
3389 esac
3390
3391 test "${cpu:-host}" = host &&
3392 die "--cpu=host not supported with compiler $cc"
3393 fi
3394
3395 # Deal with common $arch aliases
3396 case "$arch" in
3397 aarch64|arm64)
3398 arch="aarch64"
3399 ;;
3400 arm*)
3401 arch="arm"
3402 ;;
3403 mips*|IP*)
3404 case "$arch" in
3405 *el)
3406 add_cppflags -EL
3407 add_ldflags -EL
3408 ;;
3409 *eb)
3410 add_cppflags -EB
3411 add_ldflags -EB
3412 ;;
3413 esac
3414 arch="mips"
3415 ;;
3416 parisc*|hppa*)
3417 arch="parisc"
3418 ;;
3419 "Power Macintosh"|ppc*|powerpc*)
3420 arch="ppc"
3421 ;;
3422 s390|s390x)
3423 arch="s390"
3424 ;;
3425 sh4|sh)
3426 arch="sh4"
3427 ;;
3428 sun4u|sparc*)
3429 arch="sparc"
3430 ;;
3431 tilegx|tile-gx)
3432 arch="tilegx"
3433 ;;
3434 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3435 arch="x86"
3436 ;;
3437 esac
3438
3439 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3440 enable $arch
3441
3442 # Add processor-specific flags
3443 if enabled aarch64; then
3444
3445 case $cpu in
3446 armv*)
3447 cpuflags="-march=$cpu"
3448 ;;
3449 *)
3450 cpuflags="-mcpu=$cpu"
3451 ;;
3452 esac
3453
3454 elif enabled alpha; then
3455
3456 cpuflags="-mcpu=$cpu"
3457
3458 elif enabled arm; then
3459
3460 check_arm_arch() {
3461 check_cpp_condition stddef.h \
3462 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3463 $cpuflags
3464 }
3465
3466 probe_arm_arch() {
3467 if check_arm_arch 4; then echo armv4
3468 elif check_arm_arch 4T; then echo armv4t
3469 elif check_arm_arch 5; then echo armv5
3470 elif check_arm_arch 5E; then echo armv5e
3471 elif check_arm_arch 5T; then echo armv5t
3472 elif check_arm_arch 5TE; then echo armv5te
3473 elif check_arm_arch 5TEJ; then echo armv5te
3474 elif check_arm_arch 6; then echo armv6
3475 elif check_arm_arch 6J; then echo armv6j
3476 elif check_arm_arch 6K; then echo armv6k
3477 elif check_arm_arch 6Z; then echo armv6z
3478 elif check_arm_arch 6ZK; then echo armv6zk
3479 elif check_arm_arch 6T2; then echo armv6t2
3480 elif check_arm_arch 7; then echo armv7
3481 elif check_arm_arch 7A 7_A; then echo armv7-a
3482 elif check_arm_arch 7S; then echo armv7-a
3483 elif check_arm_arch 7R 7_R; then echo armv7-r
3484 elif check_arm_arch 7M 7_M; then echo armv7-m
3485 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3486 elif check_arm_arch 8A 8_A; then echo armv8-a
3487 fi
3488 }
3489
3490 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3491
3492 case $cpu in
3493 armv*)
3494 cpuflags="-march=$cpu"
3495 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3496 ;;
3497 *)
3498 cpuflags="-mcpu=$cpu"
3499 case $cpu in
3500 cortex-a*) subarch=armv7a ;;
3501 cortex-r*) subarch=armv7r ;;
3502 cortex-m*) enable thumb; subarch=armv7m ;;
3503 arm11*) subarch=armv6 ;;
3504 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3505 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3506 *) subarch=$(probe_arm_arch) ;;
3507 esac
3508 ;;
3509 esac
3510
3511 case "$subarch" in
3512 armv5t*) enable fast_clz ;;
3513 armv[6-8]*) enable fast_clz fast_unaligned ;;
3514 esac
3515
3516 elif enabled avr32; then
3517
3518 case $cpu in
3519 ap7[02]0[0-2])
3520 subarch="avr32_ap"
3521 cpuflags="-mpart=$cpu"
3522 ;;
3523 ap)
3524 subarch="avr32_ap"
3525 cpuflags="-march=$cpu"
3526 ;;
3527 uc3[ab]*)
3528 subarch="avr32_uc"
3529 cpuflags="-mcpu=$cpu"
3530 ;;
3531 uc)
3532 subarch="avr32_uc"
3533 cpuflags="-march=$cpu"
3534 ;;
3535 esac
3536
3537 elif enabled bfin; then
3538
3539 cpuflags="-mcpu=$cpu"
3540
3541 elif enabled mips; then
3542
3543 cpuflags="-march=$cpu"
3544
3545 elif enabled ppc; then
3546
3547 disable ldbrx
3548
3549 case $(tolower $cpu) in
3550 601|ppc601|powerpc601)
3551 cpuflags="-mcpu=601"
3552 disable altivec
3553 ;;
3554 603*|ppc603*|powerpc603*)
3555 cpuflags="-mcpu=603"
3556 disable altivec
3557 ;;
3558 604*|ppc604*|powerpc604*)
3559 cpuflags="-mcpu=604"
3560 disable altivec
3561 ;;
3562 g3|75*|ppc75*|powerpc75*)
3563 cpuflags="-mcpu=750"
3564 disable altivec
3565 ;;
3566 g4|745*|ppc745*|powerpc745*)
3567 cpuflags="-mcpu=7450"
3568 disable vsx
3569 ;;
3570 74*|ppc74*|powerpc74*)
3571 cpuflags="-mcpu=7400"
3572 disable vsx
3573 ;;
3574 g5|970|ppc970|powerpc970)
3575 cpuflags="-mcpu=970"
3576 disable vsx
3577 ;;
3578 power[3-6]*)
3579 cpuflags="-mcpu=$cpu"
3580 disable vsx
3581 ;;
3582 power[7-8]*)
3583 cpuflags="-mcpu=$cpu"
3584 enable ldbrx
3585 ;;
3586 cell)
3587 cpuflags="-mcpu=cell"
3588 enable ldbrx
3589 disable vsx
3590 ;;
3591 e500mc)
3592 cpuflags="-mcpu=e500mc"
3593 disable altivec
3594 ;;
3595 e500v2)
3596 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3597 disable altivec
3598 disable dcbzl
3599 ;;
3600 e500)
3601 cpuflags="-mcpu=8540 -mhard-float"
3602 disable altivec
3603 disable dcbzl
3604 ;;
3605 esac
3606
3607 elif enabled sparc; then
3608
3609 case $cpu in
3610 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3611 cpuflags="-mcpu=$cpu"
3612 ;;
3613 ultrasparc*|niagara[234])
3614 cpuflags="-mcpu=$cpu"
3615 ;;
3616 esac
3617
3618 elif enabled x86; then
3619
3620 case $cpu in
3621 i[345]86|pentium)
3622 cpuflags="-march=$cpu"
3623 disable i686
3624 disable mmx
3625 ;;
3626 # targets that do NOT support nopl and conditional mov (cmov)
3627 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3628 cpuflags="-march=$cpu"
3629 disable i686
3630 ;;
3631 # targets that do support nopl and conditional mov (cmov)
3632 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3633 cpuflags="-march=$cpu"
3634 enable i686
3635 enable fast_cmov
3636 ;;
3637 # targets that do support conditional mov but on which it's slow
3638 pentium4|pentium4m|prescott|nocona)
3639 cpuflags="-march=$cpu"
3640 enable i686
3641 disable fast_cmov
3642 ;;
3643 esac
3644
3645 fi
3646
3647 if [ "$cpu" != generic ]; then
3648 add_cflags $cpuflags
3649 add_asflags $cpuflags
3650 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3651 fi
3652
3653 # compiler sanity check
3654 check_exec <<EOF
3655 int main(void){ return 0; }
3656 EOF
3657 if test "$?" != 0; then
3658 echo "$cc is unable to create an executable file."
3659 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3660 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3661 echo "Only do this if you know what cross compiling means."
3662 fi
3663 die "C compiler test failed."
3664 fi
3665
3666 add_cppflags -D_ISOC99_SOURCE
3667 check_cflags -std=c99
3668 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3669 #include <stdlib.h>
3670 EOF
3671 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3672 #include <stdlib.h>
3673 EOF
3674
3675 add_host_cppflags -D_ISOC99_SOURCE
3676 check_host_cflags -std=c99
3677 check_host_cflags -Wall
3678 check_host_cflags -O3
3679
3680 check_64bit(){
3681 arch32=$1
3682 arch64=$2
3683 expr=$3
3684 check_code cc "" "int test[2*($expr) - 1]" &&
3685 subarch=$arch64 || subarch=$arch32
3686 }
3687
3688 case "$arch" in
3689 aarch64|alpha|ia64)
3690 spic=$shared
3691 ;;
3692 mips)
3693 check_64bit mips mips64 '_MIPS_SIM > 1'
3694 spic=$shared
3695 ;;
3696 parisc)
3697 check_64bit parisc parisc64 'sizeof(void *) > 4'
3698 spic=$shared
3699 ;;
3700 ppc)
3701 check_64bit ppc ppc64 'sizeof(void *) > 4'
3702 spic=$shared
3703 ;;
3704 s390)
3705 check_64bit s390 s390x 'sizeof(void *) > 4'
3706 spic=$shared
3707 ;;
3708 sparc)
3709 check_64bit sparc sparc64 'sizeof(void *) > 4'
3710 spic=$shared
3711 ;;
3712 x86)
3713 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3714 if test "$subarch" = "x86_64"; then
3715 spic=$shared
3716 fi
3717 ;;
3718 esac
3719
3720 enable $subarch
3721 enabled spic && enable_weak pic
3722
3723 # OS specific
3724 case $target_os in
3725 aix)
3726 SHFLAGS=-shared
3727 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3728 enabled shared && add_ldflags -Wl,-brtl
3729 ;;
3730 android)
3731 disable symver
3732 enable section_data_rel_ro
3733 SLIB_INSTALL_NAME='$(SLIBNAME)'
3734 SLIB_INSTALL_LINKS=
3735 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3736 ;;
3737 haiku)
3738 prefix_default="/boot/common"
3739 network_extralibs="-lnetwork"
3740 host_libs=
3741 ;;
3742 sunos)
3743 SHFLAGS='-shared -Wl,-h,$$(@F)'
3744 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3745 network_extralibs="-lsocket -lnsl"
3746 # When using suncc to build, the Solaris linker will mark
3747 # an executable with each instruction set encountered by
3748 # the Solaris assembler. As our libraries contain their own
3749 # guards for processor-specific code, instead suppress
3750 # generation of the HWCAPS ELF section on Solaris x86 only.
3751 enabled_all suncc x86 &&
3752 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3753 add_ldflags -Wl,-M,mapfile
3754 nm_default='nm -P -g'
3755 version_script='-M'
3756 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3757 ;;
3758 netbsd)
3759 disable symver
3760 oss_indev_extralibs="-lossaudio"
3761 oss_outdev_extralibs="-lossaudio"
3762 ;;
3763 openbsd|bitrig)
3764 disable symver
3765 SHFLAGS='-shared'
3766 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3767 SLIB_INSTALL_LINKS=
3768 oss_indev_extralibs="-lossaudio"
3769 oss_outdev_extralibs="-lossaudio"
3770 ;;
3771 dragonfly)
3772 disable symver
3773 ;;
3774 freebsd)
3775 ;;
3776 bsd/os)
3777 add_extralibs -lpoll -lgnugetopt
3778 ;;
3779 darwin)
3780 enabled ppc && add_asflags -force_cpusubtype_ALL
3781 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3782 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3783 add_ldflags -Wl,-dynamic,-search_paths_first
3784 SLIBSUF=".dylib"
3785 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3786 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3787 objformat="macho"
3788 enabled x86_64 && objformat="macho64"
3789 enabled_any pic shared ||
3790 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3791 check_header dispatch/dispatch.h &&
3792 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3793 ;;
3794 msys*)
3795 die "Native MSYS builds are discouraged, please use the MINGW environment."
3796 ;;
3797 mingw32*|mingw64*)
3798 if test $target_os = "mingw32ce"; then
3799 disable network
3800 else
3801 target_os=mingw32
3802 fi
3803 LIBTARGET=i386
3804 if enabled x86_64; then
3805 LIBTARGET="i386:x86-64"
3806 elif enabled arm; then
3807 LIBTARGET=arm-wince
3808 fi
3809 check_ldflags -Wl,--nxcompat
3810 check_ldflags -Wl,--dynamicbase
3811 shlibdir_default="$bindir_default"
3812 SLIBPREF=""
3813 SLIBSUF=".dll"
3814 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3815 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3816 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3817 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3818 SLIB_INSTALL_LINKS=
3819 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3820 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3821 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3822 objformat="win32"
3823 dlltool="${cross_prefix}dlltool"
3824 ranlib=:
3825 enable dos_paths
3826 ;;
3827 win32|win64)
3828 disable symver
3829 if enabled shared; then
3830 # Link to the import library instead of the normal static library
3831 # for shared libs.
3832 LD_LIB='%.lib'
3833 # Cannot build both shared and static libs with MSVC or icl.
3834 disable static
3835 fi
3836 shlibdir_default="$bindir_default"
3837 SLIBPREF=""
3838 SLIBSUF=".dll"
3839 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3840 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3841 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3842 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3843 SLIB_INSTALL_LINKS=
3844 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3845 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3846 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3847 objformat="win32"
3848 ranlib=:
3849 enable dos_paths
3850 ;;
3851 cygwin*)
3852 target_os=cygwin
3853 shlibdir_default="$bindir_default"
3854 SLIBPREF="cyg"
3855 SLIBSUF=".dll"
3856 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3857 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3858 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3859 SLIB_INSTALL_LINKS=
3860 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3861 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3862 objformat="win32"
3863 enable dos_paths
3864 ;;
3865 *-dos|freedos|opendos)
3866 network_extralibs="-lsocket"
3867 objformat="coff"
3868 enable dos_paths
3869 add_cppflags -U__STRICT_ANSI__
3870 ;;
3871 linux)
3872 enable dv1394
3873 enable section_data_rel_ro
3874 ;;
3875 irix*)
3876 target_os=irix
3877 ranlib="echo ignoring ranlib"
3878 ;;
3879 os/2*)
3880 ln_s="cp -f"
3881 objformat="aout"
3882 add_cppflags -D_GNU_SOURCE
3883 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3884 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3885 LIBSUF="_s.a"
3886 SLIBPREF=""
3887 SLIBSUF=".dll"
3888 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3889 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3890 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3891 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3892 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3893 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3894 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3895 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3896 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3897 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3898 enable dos_paths
3899 ;;
3900 gnu/kfreebsd)
3901 add_cppflags -D_BSD_SOURCE
3902 ;;
3903 gnu)
3904 ;;
3905 qnx)
3906 add_cppflags -D_QNX_SOURCE
3907 network_extralibs="-lsocket"
3908 ;;
3909 symbian)
3910 SLIBSUF=".dll"
3911 enable dos_paths
3912 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3913 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3914 add_ldflags -Wl,--target1-abs,--no-undefined \
3915 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3916 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3917 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3918 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3919 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3920 ;;
3921 osf1)
3922 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3923 ;;
3924 minix)
3925 ;;
3926 plan9)
3927 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3928 -D_REENTRANT_SOURCE \
3929 -D_RESEARCH_SOURCE \
3930 -DFD_SETSIZE=96 \
3931 -DHAVE_SOCK_OPTS
3932 add_compat strtod.o strtod=avpriv_strtod
3933 network_extralibs='-lbsd'
3934 exeobjs=compat/plan9/main.o
3935 cp_f='cp'
3936 ;;
3937 none)
3938 ;;
3939 *)
3940 die "Unknown OS '$target_os'."
3941 ;;
3942 esac
3943
3944 # determine libc flavour
3945
3946 probe_libc(){
3947 pfx=$1
3948 pfx_no_=${pfx%_}
3949 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3950 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3951 eval ${pfx}libc_type=uclibc
3952 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3953 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3954 eval ${pfx}libc_type=glibc
3955 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3956 # MinGW headers can be installed on Cygwin, so check for newlib first.
3957 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3958 eval ${pfx}libc_type=newlib
3959 add_${pfx}cppflags -U__STRICT_ANSI__
3960 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3961 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3962 eval ${pfx}libc_type=mingw64
3963 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3964 eval test \$${pfx_no_}cc_type = "gcc" &&
3965 add_${pfx}cppflags -D__printf__=__gnu_printf__
3966 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3967 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3968 eval ${pfx}libc_type=mingw32
3969 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3970 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3971 die "ERROR: MinGW32 runtime version must be >= 3.15."
3972 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3973 eval test \$${pfx_no_}cc_type = "gcc" &&
3974 add_${pfx}cppflags -D__printf__=__gnu_printf__
3975 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3976 eval ${pfx}libc_type=msvcrt
3977 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3978 if [ "$pfx" = host_ ]; then
3979 add_host_cppflags -Dsnprintf=_snprintf
3980 else
3981 add_compat strtod.o strtod=avpriv_strtod
3982 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3983 _snprintf=avpriv_snprintf \
3984 vsnprintf=avpriv_vsnprintf
3985 fi
3986 fi
3987 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3988 # 0x601 by default unless something else is set by the user.
3989 # This can easily lead to us detecting functions only present
3990 # in such new versions and producing binaries requiring windows 7.0.
3991 # Therefore explicitly set the default to XP unless the user has
3992 # set something else on the command line.
3993 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3994 # family. For these cases, configure is free to use any functions
3995 # found in the SDK headers by default. (Alternatively, we could force
3996 # _WIN32_WINNT to 0x0602 in that case.)
3997 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3998 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3999 #ifdef WINAPI_FAMILY
4000 #include <winapifamily.h>
4001 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4002 #error not desktop
4003 #endif
4004 #endif
4005 EOF
4006 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4007 eval ${pfx}libc_type=klibc
4008 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4009 eval ${pfx}libc_type=bionic
4010 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4011 eval ${pfx}libc_type=solaris
4012 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4013 else
4014 eval ${pfx}libc_type=default
4015 add_${pfx}cppflags -D_DEFAULT_SOURCE
4016 fi
4017 }
4018
4019 probe_libc
4020 test -n "$libc_type" && enable libc_$libc_type
4021 probe_libc host_
4022 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4023
4024 case $libc_type in
4025 bionic)
4026 add_compat strtod.o strtod=avpriv_strtod
4027 ;;
4028 esac
4029
4030 # hacks for compiler/libc/os combinations
4031
4032 if enabled_all tms470 libc_glibc; then
4033 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4034 add_cppflags -D__USER_LABEL_PREFIX__=
4035 add_cppflags -D__builtin_memset=memset
4036 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4037 add_cflags -pds=48 # incompatible redefinition of macro
4038 fi
4039
4040 if enabled_all ccc libc_glibc; then
4041 add_ldflags -Wl,-z,now # calls to libots crash without this
4042 fi
4043
4044 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4045 add_cppflags '-I\$(SRC_PATH)/compat/float'
4046
4047 esc(){
4048 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4049 }
4050
4051 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4052
4053 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4054
4055 set_default $PATHS_LIST
4056 set_default nm
4057
4058 # we need to build at least one lib type
4059 if ! enabled_any static shared; then
4060 cat <<EOF
4061 At least one library type must be built.
4062 Specify --enable-static to build the static libraries or --enable-shared to
4063 build the shared libraries as well. To only build the shared libraries specify
4064 --disable-static in addition to --enable-shared.
4065 EOF
4066 exit 1
4067 fi
4068
4069 die_license_disabled() {
4070 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4071 }
4072
4073 die_license_disabled gpl libcdio
4074 die_license_disabled gpl libx264
4075 die_license_disabled gpl libx265
4076 die_license_disabled gpl libxavs
4077 die_license_disabled gpl libxvid
4078 die_license_disabled gpl x11grab
4079
4080 die_license_disabled nonfree cuda
4081 die_license_disabled nonfree libfaac
4082 die_license_disabled nonfree libfdk_aac
4083 die_license_disabled nonfree libnpp
4084 die_license_disabled nonfree openssl
4085
4086 die_license_disabled version3 libopencore_amrnb
4087 die_license_disabled version3 libopencore_amrwb
4088 die_license_disabled version3 libvo_aacenc
4089 die_license_disabled version3 libvo_amrwbenc
4090
4091 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4092
4093 disabled optimizations || check_cflags -fomit-frame-pointer
4094
4095 enable_weak_pic() {
4096 disabled pic && return
4097 enable pic
4098 add_cppflags -DPIC
4099 case "$target_os" in
4100 mingw*|cygwin*)
4101 ;;
4102 *)
4103 add_cflags -fPIC
4104 ;;
4105 esac
4106 add_asflags -fPIC
4107 }
4108
4109 enabled pic && enable_weak_pic
4110
4111 check_cc <<EOF || die "Symbol mangling check failed."
4112 int ff_extern;
4113 EOF
4114 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4115 extern_prefix=${sym%%ff_extern*}
4116
4117 check_cc <<EOF && enable_weak inline_asm
4118 void foo(void) { __asm__ volatile ("" ::); }
4119 EOF
4120
4121 _restrict=
4122 for restrict_keyword in restrict __restrict__ __restrict; do
4123 check_cc <<EOF && _restrict=$restrict_keyword && break
4124 void foo(char * $restrict_keyword p);
4125 EOF
4126 done
4127
4128 check_cc <<EOF && enable pragma_deprecated
4129 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4130 EOF
4131
4132 check_cc <<EOF && enable attribute_packed
4133 struct { int x; } __attribute__((packed)) x;
4134 EOF
4135
4136 check_cc <<EOF && enable attribute_may_alias
4137 union { int x; } __attribute__((may_alias)) x;
4138 EOF
4139
4140 check_cc <<EOF || die "endian test failed"
4141 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4142 EOF
4143 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4144
4145 check_gas() {
4146 log "check_gas using '$as' as AS"
4147 # :vararg is used on aarch64, arm and ppc altivec
4148 check_as <<EOF || return 1
4149 .macro m n, y:vararg=0
4150 \n: .int \y
4151 .endm
4152 m x
4153 EOF
4154 # .altmacro is only used in arm asm
4155 ! enabled arm || check_as <<EOF || return 1
4156 .altmacro
4157 EOF
4158 enable gnu_as
4159 return 0
4160 }
4161
4162 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4163 nogas=:
4164 enabled_any arm aarch64 && nogas=die
4165 enabled_all ppc altivec && nogas=warn
4166 as_noop=-v
4167
4168 case $as_type in
4169 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4170 gcc) gaspp_as_type=gas ;;
4171 *) gaspp_as_type=$as_type ;;
4172 esac
4173
4174 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4175
4176 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4177 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4178
4179 if ! check_gas ; then
4180 as=${gas:=$as}
4181 check_gas || \
4182 $nogas "GNU assembler not found, install/update gas-preprocessor"
4183 fi
4184
4185 check_as <<EOF && enable as_func
4186 .func test
4187 .endfunc
4188 EOF
4189 fi
4190
4191 check_inline_asm inline_asm_labels '"1:\n"'
4192
4193 if enabled aarch64; then
4194 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4195 # internal assembler in clang 3.3 does not support this instruction
4196 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4197 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4198
4199 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4200
4201 elif enabled alpha; then
4202
4203 check_cflags -mieee
4204
4205 elif enabled arm; then
4206
4207 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4208 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4209 enabled thumb && check_cflags -mthumb || check_cflags -marm
4210
4211 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4212 enable vfp_args
4213 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4214 enable vfp_args
4215 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4216 case "${cross_prefix:-$cc}" in
4217 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4218 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4219 __asm__ (".eabi_attribute 28, 1");
4220 int main(void) { return 0; }
4221 EOF
4222 esac
4223 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4224 fi
4225
4226 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4227 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4228 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4229 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4230 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4231 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4232
4233 [ $target_os = linux ] || [ $target_os = android ] ||
4234 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4235 $ARCH_EXT_LIST_ARM
4236
4237 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4238
4239 check_as <<EOF && enable as_dn_directive
4240 ra .dn d0.i16
4241 .unreq ra
4242 EOF
4243
4244 # llvm's integrated assembler supports .object_arch from llvm 3.5
4245 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4246 .object_arch armv4
4247 EOF
4248
4249 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4250
4251 elif enabled mips; then
4252
4253 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4254
4255 # make sure that only an instruction set is enabled
4256 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4257
4258 if enabled mips64; then
4259 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4260 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4261 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4262 else
4263 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4264 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4265 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4266 fi
4267
4268 elif enabled parisc; then
4269
4270 if enabled gcc; then
4271 case $($cc -dumpversion) in
4272 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4273 esac
4274 fi
4275
4276 elif enabled ppc; then
4277
4278 enable local_aligned_8 local_aligned_16
4279
4280 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4281 check_inline_asm ibm_asm '"add 0, 0, 0"'
4282 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4283 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4284
4285 # AltiVec flags: The FSF version of GCC differs from the Apple version
4286 if enabled altivec; then
4287 check_cflags -maltivec -mabi=altivec &&
4288 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4289 check_cflags -faltivec
4290
4291 # check if our compiler supports Motorola AltiVec C API
4292 check_cc <<EOF || disable altivec
4293 $inc_altivec_h
4294 int main(void) {
4295 vector signed int v1 = (vector signed int) { 0 };
4296 vector signed int v2 = (vector signed int) { 1 };
4297 v1 = vec_add(v1, v2);
4298 return 0;
4299 }
4300 EOF
4301
4302 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4303 fi
4304
4305 if enabled vsx; then
4306 check_cflags -mvsx &&
4307 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4308 fi
4309
4310 if enabled power8; then
4311 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4312 fi
4313
4314 elif enabled x86; then
4315
4316 check_builtin rdtsc intrin.h "__rdtsc()"
4317 check_builtin mm_empty mmintrin.h "_mm_empty()"
4318
4319 enable local_aligned_8 local_aligned_16
4320
4321 # check whether EBP is available on x86
4322 # As 'i' is stored on the stack, this program will crash
4323 # if the base pointer is used to access it because the
4324 # base pointer is cleared in the inline assembly code.
4325 check_exec_crash <<EOF && enable ebp_available
4326 volatile int i=0;
4327 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4328 return i;
4329 EOF
4330
4331 # check whether EBX is available on x86
4332 check_inline_asm ebx_available '""::"b"(0)' &&
4333 check_inline_asm ebx_available '"":::"%ebx"'
4334
4335 # check whether xmm clobbers are supported
4336 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4337
4338 # check whether binutils is new enough to compile SSSE3/MMXEXT
4339 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4340 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4341
4342 if ! disabled_any asm mmx yasm; then
4343 if check_cmd $yasmexe --version; then
4344 enabled x86_64 && yasm_extra="-m amd64"
4345 yasm_debug="-g dwarf2"
4346 elif check_cmd nasm -v; then
4347 yasmexe=nasm
4348 yasm_debug="-g -F dwarf"
4349 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4350 fi
4351
4352 YASMFLAGS="-f $objformat $yasm_extra"
4353 enabled pic && append YASMFLAGS "-DPIC"
4354 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4355 case "$objformat" in
4356 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4357 esac
4358
4359 check_yasm "movbe ecx, [5]" && enable yasm ||
4360 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4361 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4362 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4363 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4364 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4365 check_yasm "CPU amdnop" || disable cpunop
4366 fi
4367
4368 case "$cpu" in
4369 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4370 disable fast_clz
4371 ;;
4372 esac
4373
4374 fi
4375
4376 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4377
4378 check_ldflags -Wl,--as-needed
4379
4380 if check_func dlopen; then
4381 ldl=