configure: improve the help text for external libraries
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142 Hardware-accelerated decoding/encoding:
143 --enable-cuda enable dynamically linked CUDA [no]
144 --enable-libmfx enable HW acceleration through libmfx
145 --enable-mmal enable decoding via MMAL [no]
146 --enable-nvenc enable encoding via NVENC [no]
147 --enable-omx enable encoding via OpenMAX IL [no]
148 --enable-omx-rpi enable encoding via OpenMAX IL for Raspberry Pi [no]
149
150 Individual component options:
151 --disable-everything disable all components listed below
152 --disable-encoder=NAME disable encoder NAME
153 --enable-encoder=NAME enable encoder NAME
154 --disable-encoders disable all encoders
155 --disable-decoder=NAME disable decoder NAME
156 --enable-decoder=NAME enable decoder NAME
157 --disable-decoders disable all decoders
158 --disable-hwaccel=NAME disable hwaccel NAME
159 --enable-hwaccel=NAME enable hwaccel NAME
160 --disable-hwaccels disable all hwaccels
161 --disable-muxer=NAME disable muxer NAME
162 --enable-muxer=NAME enable muxer NAME
163 --disable-muxers disable all muxers
164 --disable-demuxer=NAME disable demuxer NAME
165 --enable-demuxer=NAME enable demuxer NAME
166 --disable-demuxers disable all demuxers
167 --enable-parser=NAME enable parser NAME
168 --disable-parser=NAME disable parser NAME
169 --disable-parsers disable all parsers
170 --enable-bsf=NAME enable bitstream filter NAME
171 --disable-bsf=NAME disable bitstream filter NAME
172 --disable-bsfs disable all bitstream filters
173 --enable-protocol=NAME enable protocol NAME
174 --disable-protocol=NAME disable protocol NAME
175 --disable-protocols disable all protocols
176 --enable-indev=NAME enable input device NAME
177 --disable-indev=NAME disable input device NAME
178 --disable-indevs disable input devices
179 --enable-outdev=NAME enable output device NAME
180 --disable-outdev=NAME disable output device NAME
181 --disable-outdevs disable output devices
182 --disable-devices disable all devices
183 --enable-filter=NAME enable filter NAME
184 --disable-filter=NAME disable filter NAME
185 --disable-filters disable all filters
186
187 External library support:
188
189 Using any of the following switches will allow Libav to link to the
190 corresponding external library. All the components depending on that library
191 will become enabled, if all their other dependencies are met and they are not
192 explicitly disabled. E.g. --enable-libwavpack will enable linking to
193 libwavpack and allow the libwavpack encoder to be built, unless it is
194 specifically disabled with --disable-encoder=libwavpack.
195
196 Note that only the system libraries are auto-detected. All the other external
197 libraries must be explicitly enabled.
198
199 Also note that the following help text describes the purpose of the libraries
200 themselves, not all their features will necessarily be usable by Libav.
201
202 --enable-avisynth video frameserver
203 --enable-bzlib bzip2 compression [autodetect]
204 --enable-frei0r video filtering plugins
205 --enable-gnutls crypto
206 --enable-libbs2b Bauer stereophonic-to-binaural DSP
207 --enable-libcdio audio CD input
208 --enable-libdc1394 IEEE 1394/Firewire camera input
209 --enable-libdcadec DCA audio decoding
210 --enable-libfaac AAC audio encoding
211 --enable-libfdk-aac AAC audio encoding/decoding
212 --enable-libfontconfig font configuration and management
213 --enable-libfreetype font rendering
214 --enable-libgsm GSM audio encoding/decoding
215 --enable-libilbc ILBC audio encoding/decoding
216 --enable-libkvazaar HEVC video encoding
217 --enable-libmp3lame MP3 audio encoding
218 --enable-libnpp CUDA processing
219 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
220 --enable-libopencore-amrwb AMR-WB audio decoding
221 --enable-libopencv computer vision
222 --enable-libopenh264 H.264 video encoding/decoding
223 --enable-libopenjpeg JPEG 2000 image encoding/decoding
224 --enable-libopus Opus audio encoding/decoding
225 --enable-libpulse Pulseaudio sound server
226 --enable-librtmp RTMP streaming
227 --enable-libschroedinger Dirac video encoding/decoding
228 --enable-libsnappy snappy compression
229 --enable-libspeex Speex audio encoding/decoding
230 --enable-libtheora Theora video encoding/decoding
231 --enable-libtwolame MP2 audio encoding
232 --enable-libvo-aacenc AAC audio encoding
233 --enable-libvo-amrwbenc AMR-WB audio encoding
234 --enable-libvorbis Vorbis audio encoding/decoding
235 --enable-libvpx VP* video encoding/decoding
236 --enable-libwavpack Wavpack audio encoding/decoding
237 --enable-libwebp WebP image encoding/decoding
238 --enable-libx264 H.264 video encoding
239 --enable-libx265 HEVC video encoding
240 --enable-libxavs Chinese AVS video encoding
241 --enable-libxcb X window system protocol communication
242 --enable-libxcb-shm X11 shm communication [auto]
243 --enable-libxcb-xfixes X11 mouse rendering [auto]
244 --enable-libxvid MPEG-4 ASP video encoding
245 --enable-openssl crypto
246 --enable-x11grab X11 grabbing through xlib (legacy, use xcb instead)
247 --enable-zlib compression [autodetect]
248
249 Toolchain options:
250 --arch=ARCH select architecture [$arch]
251 --cpu=CPU select the minimum required CPU (affects
252 instruction selection, may crash on older CPUs)
253 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
254 --enable-cross-compile assume a cross-compiler is used
255 --sysroot=PATH root of cross-build tree
256 --sysinclude=PATH location of cross-build system headers
257 --target-os=OS compiler targets OS [$target_os]
258 --target-exec=CMD command to run executables on target
259 --target-path=DIR path to view of build directory on target
260 --target-samples=DIR path to samples directory on target
261 --toolchain=NAME set tool defaults according to NAME
262 --nm=NM use nm tool
263 --ar=AR use archive tool AR [$ar_default]
264 --as=AS use assembler AS [$as_default]
265 --cc=CC use C compiler CC [$cc_default]
266 --objcc=OCC use ObjC compiler OCC [$cc_default]
267 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
268 --ld=LD use linker LD
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-libs=ELIBS add ELIBS [$ELIBS]
283 --extra-version=STRING version string suffix []
284 --optflags=OPTFLAGS override optimization-related compiler flags
285 --build-suffix=SUFFIX library name suffix []
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-memalign-hack emulate memalign, interferes with memory debuggers
300 --enable-sram allow use of on-chip SRAM
301
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-yasm disable use of nasm/yasm assembly
329
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --enable-random randomly enable/disable components
342 --disable-random
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
347 NAME (default 0.5).
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
351
352 NOTE: Object files are built at the place where configure is launched.
353 EOF
354 exit 0
355 }
356
357 quotes='""'
358
359 log(){
360 echo "$@" >> $logfile
361 }
362
363 log_file(){
364 log BEGIN $1
365 i=1
366 while read line; do
367 printf '%5s %s\n' "${i}" "${line}"
368 i=$(($i+1))
369 done < $1 >> $logfile
370 log END $1
371 }
372
373 echolog(){
374 log "$@"
375 echo "$@"
376 }
377
378 warn(){
379 log "WARNING: $*"
380 WARNINGS="${WARNINGS}WARNING: $*\n"
381 }
382
383 die(){
384 echolog "$@"
385 cat <<EOF
386
387 If you think configure made a mistake, make sure you are using the latest
388 version from Git. If the latest version fails, report the problem to the
389 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
390 EOF
391 if disabled logging; then
392 cat <<EOF
393 Rerun configure with logging enabled (do not use --disable-logging), and
394 include the log this produces with your report.
395 EOF
396 else
397 cat <<EOF
398 Include the log file "$logfile" produced by configure as this will help
399 solving the problem.
400 EOF
401 fi
402 exit 1
403 }
404
405 # Avoid locale weirdness, besides we really just want to translate ASCII.
406 toupper(){
407 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
408 }
409
410 tolower(){
411 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
412 }
413
414 c_escape(){
415 echo "$*" | sed 's/["\\]/\\\0/g'
416 }
417
418 sh_quote(){
419 v=$(echo "$1" | sed "s/'/'\\\\''/g")
420 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
421 echo "$v"
422 }
423
424 cleanws(){
425 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
426 }
427
428 filter(){
429 pat=$1
430 shift
431 for v; do
432 eval "case $v in $pat) echo $v ;; esac"
433 done
434 }
435
436 filter_out(){
437 pat=$1
438 shift
439 for v; do
440 eval "case $v in $pat) ;; *) echo $v ;; esac"
441 done
442 }
443
444 map(){
445 m=$1
446 shift
447 for v; do eval $m; done
448 }
449
450 add_suffix(){
451 suffix=$1
452 shift
453 for v; do echo ${v}${suffix}; done
454 }
455
456 set_all(){
457 value=$1
458 shift
459 for var in $*; do
460 eval $var=$value
461 done
462 }
463
464 set_weak(){
465 value=$1
466 shift
467 for var; do
468 eval : \${$var:=$value}
469 done
470 }
471
472 sanitize_var_name(){
473 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
474 }
475
476 set_safe(){
477 var=$1
478 shift
479 eval $(sanitize_var_name "$var")='$*'
480 }
481
482 get_safe(){
483 eval echo \$$(sanitize_var_name "$1")
484 }
485
486 pushvar(){
487 for pvar in $*; do
488 eval level=\${${pvar}_level:=0}
489 eval ${pvar}_${level}="\$$pvar"
490 eval ${pvar}_level=$(($level+1))
491 done
492 }
493
494 popvar(){
495 for pvar in $*; do
496 eval level=\${${pvar}_level:-0}
497 test $level = 0 && continue
498 eval level=$(($level-1))
499 eval $pvar="\${${pvar}_${level}}"
500 eval ${pvar}_level=$level
501 eval unset ${pvar}_${level}
502 done
503 }
504
505 enable(){
506 set_all yes $*
507 }
508
509 disable(){
510 set_all no $*
511 }
512
513 enable_weak(){
514 set_weak yes $*
515 }
516
517 disable_weak(){
518 set_weak no $*
519 }
520
521 enable_safe(){
522 for var; do
523 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
524 done
525 }
526
527 disable_safe(){
528 for var; do
529 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 do_enable_deep(){
534 for var; do
535 enabled $var && continue
536 eval sel="\$${var}_select"
537 eval sgs="\$${var}_suggest"
538 pushvar var sgs
539 enable_deep $sel
540 popvar sgs
541 enable_deep_weak $sgs
542 popvar var
543 done
544 }
545
546 enable_deep(){
547 do_enable_deep $*
548 enable $*
549 }
550
551 enable_deep_weak(){
552 for var; do
553 disabled $var && continue
554 pushvar var
555 do_enable_deep $var
556 popvar var
557 enable_weak $var
558 done
559 }
560
561 enabled(){
562 test "${1#!}" = "$1" && op== || op=!=
563 eval test "x\$${1#!}" $op "xyes"
564 }
565
566 disabled(){
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xno"
569 }
570
571 enabled_all(){
572 for opt; do
573 enabled $opt || return 1
574 done
575 }
576
577 disabled_all(){
578 for opt; do
579 disabled $opt || return 1
580 done
581 }
582
583 enabled_any(){
584 for opt; do
585 enabled $opt && return 0
586 done
587 }
588
589 disabled_any(){
590 for opt; do
591 disabled $opt && return 0
592 done
593 return 1
594 }
595
596 set_default(){
597 for opt; do
598 eval : \${$opt:=\$${opt}_default}
599 done
600 }
601
602 is_in(){
603 value=$1
604 shift
605 for var in $*; do
606 [ $var = $value ] && return 0
607 done
608 return 1
609 }
610
611 do_check_deps(){
612 for cfg; do
613 cfg="${cfg#!}"
614 enabled ${cfg}_checking && die "Circular dependency for $cfg."
615 disabled ${cfg}_checking && continue
616 enable ${cfg}_checking
617 append allopts $cfg
618
619 eval dep_all="\$${cfg}_deps"
620 eval dep_any="\$${cfg}_deps_any"
621 eval dep_sel="\$${cfg}_select"
622 eval dep_sgs="\$${cfg}_suggest"
623 eval dep_ifa="\$${cfg}_if"
624 eval dep_ifn="\$${cfg}_if_any"
625
626 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
628 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
629
630 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
631 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
632 enabled_all $dep_all || disable $cfg
633 enabled_any $dep_any || disable $cfg
634 disabled_any $dep_sel && disable $cfg
635
636 if enabled $cfg; then
637 enable_deep $dep_sel
638 enable_deep_weak $dep_sgs
639 fi
640
641 disable ${cfg}_checking
642 done
643 }
644
645 check_deps(){
646 unset allopts
647
648 do_check_deps "$@"
649
650 for cfg in $allopts; do
651 enabled $cfg || continue
652 eval dep_extralibs="\$${cfg}_extralibs"
653 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
654 done
655 }
656
657 print_config(){
658 pfx=$1
659 files=$2
660 shift 2
661 map 'eval echo "$v \${$v:-no}"' "$@" |
662 awk "BEGIN { split(\"$files\", files) }
663 {
664 c = \"$pfx\" toupper(\$1);
665 v = \$2;
666 sub(/yes/, 1, v);
667 sub(/no/, 0, v);
668 for (f in files) {
669 file = files[f];
670 if (file ~ /\\.h\$/) {
671 printf(\"#define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.asm\$/) {
673 printf(\"%%define %s %d\\n\", c, v) >>file;
674 } else if (file ~ /\\.mak\$/) {
675 n = -v ? \"\" : \"!\";
676 printf(\"%s%s=yes\\n\", n, c) >>file;
677 }
678 }
679 }"
680 }
681
682 print_enabled(){
683 suf=$1
684 shift
685 for v; do
686 enabled $v && printf "%s\n" ${v%$suf}
687 done
688 }
689
690 append(){
691 var=$1
692 shift
693 eval "$var=\"\$$var $*\""
694 }
695
696 prepend(){
697 var=$1
698 shift
699 eval "$var=\"$* \$$var\""
700 }
701
702 unique(){
703 var=$1
704 uniq_list=""
705 for tok in $(eval echo \$$var); do
706 uniq_list="$(filter_out $tok $uniq_list) $tok"
707 done
708 eval "$var=\"${uniq_list}\""
709 }
710
711 add_cppflags(){
712 append CPPFLAGS "$@"
713 }
714
715 add_cflags(){
716 append CFLAGS $($cflags_filter "$@")
717 }
718
719 add_asflags(){
720 append ASFLAGS $($asflags_filter "$@")
721 }
722
723 add_objcflags(){
724 append OBJCFLAGS $($objcflags_filter "$@")
725 }
726
727 add_ldflags(){
728 append LDFLAGS $($ldflags_filter "$@")
729 }
730
731 add_ldexeflags(){
732 append LDEXEFLAGS $($ldflags_filter "$@")
733 }
734
735 add_stripflags(){
736 append STRIPFLAGS "$@"
737 }
738
739 add_extralibs(){
740 prepend extralibs $($ldflags_filter "$@")
741 }
742
743 add_host_cppflags(){
744 append host_cppflags "$@"
745 }
746
747 add_host_cflags(){
748 append host_cflags $($host_cflags_filter "$@")
749 }
750
751 add_host_ldflags(){
752 append host_ldflags $($host_ldflags_filter "$@")
753 }
754
755 add_compat(){
756 append compat_objs $1
757 shift
758 map 'add_cppflags -D$v' "$@"
759 }
760
761 check_cmd(){
762 log "$@"
763 "$@" >> $logfile 2>&1
764 }
765
766 cc_o(){
767 eval printf '%s\\n' $CC_O
768 }
769
770 cc_e(){
771 eval printf '%s\\n' $CC_E
772 }
773
774 check_cc(){
775 log check_cc "$@"
776 cat > $TMPC
777 log_file $TMPC
778 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
779 }
780
781 check_objcc(){
782 log check_objcc "$@"
783 cat > $TMPC
784 log_file $TMPC
785 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
786 }
787
788 check_cpp(){
789 log check_cpp "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
793 }
794
795 as_o(){
796 eval printf '%s\\n' $AS_O
797 }
798
799 check_as(){
800 log check_as "$@"
801 cat > $TMPS
802 log_file $TMPS
803 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
804 }
805
806 check_inline_asm(){
807 log check_inline_asm "$@"
808 name="$1"
809 code="$2"
810 shift 2
811 disable $name
812 check_cc "$@" <<EOF && enable $name
813 void foo(void){ __asm__ volatile($code); }
814 EOF
815 }
816
817 check_insn(){
818 log check_insn "$@"
819 check_inline_asm ${1}_inline "\"$2\""
820 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
821 }
822
823 check_yasm(){
824 log check_yasm "$@"
825 echo "$1" > $TMPS
826 log_file $TMPS
827 shift 1
828 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
829 }
830
831 ld_o(){
832 eval printf '%s\\n' $LD_O
833 }
834
835 check_ld(){
836 log check_ld "$@"
837 flags=$(filter_out '-l*' "$@")
838 libs=$(filter '-l*' "$@")
839 check_cc $($cflags_filter $flags) || return
840 flags=$($ldflags_filter $flags)
841 libs=$($ldflags_filter $libs)
842 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
843 }
844
845 print_include(){
846 hdr=$1
847 test "${hdr%.h}" = "${hdr}" &&
848 echo "#include $hdr" ||
849 echo "#include <$hdr>"
850 }
851
852 check_code(){
853 log check_code "$@"
854 check=$1
855 headers=$2
856 code=$3
857 shift 3
858 {
859 for hdr in $headers; do
860 print_include $hdr
861 done
862 echo "int main(void) { $code; return 0; }"
863 } | check_$check "$@"
864 }
865
866 check_cppflags(){
867 log check_cppflags "$@"
868 check_cc "$@" <<EOF && append CPPFLAGS "$@"
869 int x;
870 EOF
871 }
872
873 test_cflags(){
874 log test_cflags "$@"
875 set -- $($cflags_filter "$@")
876 check_cc "$@" <<EOF
877 int x;
878 EOF
879 }
880
881 check_cflags(){
882 log check_cflags "$@"
883 test_cflags "$@" && add_cflags "$@"
884 }
885
886 test_objcflags(){
887 log test_cflags "$@"
888 set -- $($cflags_filter "$@")
889 check_objcc "$@" <<EOF
890 int x;
891 EOF
892 }
893
894 check_objcflags(){
895 log check_cflags "$@"
896 test_objcflags "$@" && add_objcflags "$@"
897 }
898
899 test_ldflags(){
900 log test_ldflags "$@"
901 check_ld "$@" <<EOF
902 int main(void){ return 0; }
903 EOF
904 }
905
906 check_ldflags(){
907 log check_ldflags "$@"
908 test_ldflags "$@" && add_ldflags "$@"
909 }
910
911 test_stripflags(){
912 log test_stripflags "$@"
913 # call check_cc to get a fresh TMPO
914 check_cc <<EOF
915 int main(void) { return 0; }
916 EOF
917 check_cmd $strip $STRIPFLAGS "$@" $TMPO
918 }
919
920 check_stripflags(){
921 log check_stripflags "$@"
922 test_stripflags "$@" && add_stripflags "$@"
923 }
924
925 check_header(){
926 log check_header "$@"
927 header=$1
928 shift
929 disable_safe $header
930 check_cpp "$@" <<EOF && enable_safe $header
931 #include <$header>
932 int x;
933 EOF
934 }
935
936 check_func(){
937 log check_func "$@"
938 func=$1
939 shift
940 disable $func
941 check_ld "$@" <<EOF && enable $func
942 extern int $func();
943 int main(void){ $func(); }
944 EOF
945 }
946
947 check_mathfunc(){
948 log check_mathfunc "$@"
949 func=$1
950 narg=$2
951 shift 2
952 test $narg = 2 && args="f, g" || args="f"
953 disable $func
954 check_ld "$@" <<EOF && enable $func
955 #include <math.h>
956 float foo(float f, float g) { return $func($args); }
957 int main(void){ return 0; }
958 EOF
959 }
960
961 check_func_headers(){
962 log check_func_headers "$@"
963 headers=$1
964 funcs=$2
965 shift 2
966 {
967 for hdr in $headers; do
968 print_include $hdr
969 done
970 for func in $funcs; do
971 echo "long check_$func(void) { return (long) $func; }"
972 done
973 echo "int main(void) { return 0; }"
974 } | check_ld "$@" && enable $funcs && enable_safe $headers
975 }
976
977 check_cpp_condition(){
978 log check_cpp_condition "$@"
979 header=$1
980 condition=$2
981 shift 2
982 check_cpp "$@" <<EOF
983 #include <$header>
984 #if !($condition)
985 #error "unsatisfied condition: $condition"
986 #endif
987 EOF
988 }
989
990 check_lib(){
991 log check_lib "$@"
992 header="$1"
993 func="$2"
994 shift 2
995 check_header $header && check_func $func "$@" && add_extralibs "$@"
996 }
997
998 check_lib2(){
999 log check_lib2 "$@"
1000 headers="$1"
1001 funcs="$2"
1002 shift 2
1003 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1004 }
1005
1006 check_pkg_config(){
1007 log check_pkg_config "$@"
1008 pkg="$1"
1009 headers="$2"
1010 funcs="$3"
1011 shift 3
1012 check_cmd $pkg_config --exists --print-errors $pkg || return
1013 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1014 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1015 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1016 set_safe "${pkg}_cflags" $pkg_cflags &&
1017 set_safe "${pkg}_libs" $pkg_libs
1018 }
1019
1020 check_exec(){
1021 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1022 }
1023
1024 check_exec_crash(){
1025 code=$(cat)
1026
1027 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1028 # are safe but may not be available everywhere. Thus we use
1029 # raise(SIGTERM) instead. The check is run in a subshell so we
1030 # can redirect the "Terminated" message from the shell. SIGBUS
1031 # is not defined by standard C so it is used conditionally.
1032
1033 (check_exec "$@") >> $logfile 2>&1 <<EOF
1034 #include <signal.h>
1035 static void sighandler(int sig){
1036 raise(SIGTERM);
1037 }
1038 int foo(void){
1039 $code
1040 }
1041 int (*func_ptr)(void) = foo;
1042 int main(void){
1043 signal(SIGILL, sighandler);
1044 signal(SIGFPE, sighandler);
1045 signal(SIGSEGV, sighandler);
1046 #ifdef SIGBUS
1047 signal(SIGBUS, sighandler);
1048 #endif
1049 return func_ptr();
1050 }
1051 EOF
1052 }
1053
1054 check_type(){
1055 log check_type "$@"
1056 headers=$1
1057 type=$2
1058 shift 2
1059 disable_safe "$type"
1060 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1061 }
1062
1063 check_struct(){
1064 log check_struct "$@"
1065 headers=$1
1066 struct=$2
1067 member=$3
1068 shift 3
1069 disable_safe "${struct}_${member}"
1070 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1071 enable_safe "${struct}_${member}"
1072 }
1073
1074 check_builtin(){
1075 log check_builtin "$@"
1076 name=$1
1077 headers=$2
1078 builtin=$3
1079 shift 3
1080 disable "$name"
1081 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1082 }
1083
1084 check_compile_assert(){
1085 log check_compile_assert "$@"
1086 name=$1
1087 headers=$2
1088 condition=$3
1089 shift 3
1090 disable "$name"
1091 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1092 }
1093
1094 require(){
1095 name="$1"
1096 header="$2"
1097 func="$3"
1098 shift 3
1099 check_lib $header $func "$@" || die "ERROR: $name not found"
1100 }
1101
1102 require2(){
1103 name="$1"
1104 headers="$2"
1105 func="$3"
1106 shift 3
1107 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1108 }
1109
1110 require_pkg_config(){
1111 pkg="$1"
1112 check_pkg_config "$@" || die "ERROR: $pkg not found"
1113 add_cflags $(get_safe "${pkg}_cflags")
1114 add_extralibs $(get_safe "${pkg}_libs")
1115 }
1116
1117 hostcc_e(){
1118 eval printf '%s\\n' $HOSTCC_E
1119 }
1120
1121 hostcc_o(){
1122 eval printf '%s\\n' $HOSTCC_O
1123 }
1124
1125 check_host_cc(){
1126 log check_host_cc "$@"
1127 cat > $TMPC
1128 log_file $TMPC
1129 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1130 }
1131
1132 check_host_cpp(){
1133 log check_host_cpp "$@"
1134 cat > $TMPC
1135 log_file $TMPC
1136 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1137 }
1138
1139 check_host_cppflags(){
1140 log check_host_cppflags "$@"
1141 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1142 int x;
1143 EOF
1144 }
1145
1146 check_host_cflags(){
1147 log check_host_cflags "$@"
1148 set -- $($host_cflags_filter "$@")
1149 check_host_cc "$@" <<EOF && append host_cflags "$@"
1150 int x;
1151 EOF
1152 }
1153
1154 check_host_cpp_condition(){
1155 log check_host_cpp_condition "$@"
1156 header=$1
1157 condition=$2
1158 shift 2
1159 check_host_cpp "$@" <<EOF
1160 #include <$header>
1161 #if !($condition)
1162 #error "unsatisfied condition: $condition"
1163 #endif
1164 EOF
1165 }
1166
1167 apply(){
1168 file=$1
1169 shift
1170 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1171 }
1172
1173 cp_if_changed(){
1174 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1175 mkdir -p "$(dirname $2)"
1176 $cp_f "$1" "$2"
1177 }
1178
1179 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1180 # system-dependent things.
1181
1182 AVCODEC_COMPONENTS="
1183 bsfs
1184 decoders
1185 encoders
1186 hwaccels
1187 parsers
1188 "
1189
1190 AVDEVICE_COMPONENTS="
1191 indevs
1192 outdevs
1193 "
1194 AVFILTER_COMPONENTS="
1195 filters
1196 "
1197 AVFORMAT_COMPONENTS="
1198 demuxers
1199 muxers
1200 protocols
1201 "
1202
1203 AVRESAMPLE_COMPONENTS=""
1204 AVUTIL_COMPONENTS=""
1205
1206 COMPONENT_LIST="
1207 $AVCODEC_COMPONENTS
1208 $AVDEVICE_COMPONENTS
1209 $AVFILTER_COMPONENTS
1210 $AVFORMAT_COMPONENTS
1211 $AVRESAMPLE_COMPONENTS
1212 $AVUTIL_COMPONENTS
1213 "
1214
1215 EXAMPLE_LIST="
1216 avcodec_example
1217 filter_audio_example
1218 metadata_example
1219 output_example
1220 qsvdec_example
1221 transcode_aac_example
1222 "
1223
1224 EXTERNAL_LIBRARY_LIST="
1225 avisynth
1226 bzlib
1227 frei0r
1228 gnutls
1229 libbs2b
1230 libcdio
1231 libdc1394
1232 libdcadec
1233 libfaac
1234 libfdk_aac
1235 libfontconfig
1236 libfreetype
1237 libgsm
1238 libilbc
1239 libkvazaar
1240 libmp3lame
1241 libnpp
1242 libopencore_amrnb
1243 libopencore_amrwb
1244 libopencv
1245 libopenh264
1246 libopenjpeg
1247 libopus
1248 libpulse
1249 librtmp
1250 libschroedinger
1251 libsnappy
1252 libspeex
1253 libtheora
1254 libtwolame
1255 libvo_aacenc
1256 libvo_amrwbenc
1257 libvorbis
1258 libvpx
1259 libwavpack
1260 libwebp
1261 libx264
1262 libx265
1263 libxavs
1264 libxcb
1265 libxcb_shm
1266 libxcb_xfixes
1267 libxvid
1268 openssl
1269 x11grab
1270 zlib
1271 "
1272
1273 FEATURE_LIST="
1274 gray
1275 hardcoded_tables
1276 omx_rpi
1277 runtime_cpudetect
1278 safe_bitstream_reader
1279 shared
1280 small
1281 sram
1282 static
1283 swscale_alpha
1284 "
1285
1286 HW_CODECS_LIST="
1287 cuda
1288 libmfx
1289 mmal
1290 nvenc
1291 omx
1292 "
1293
1294 HWACCEL_LIST="
1295 d3d11va
1296 dxva2
1297 vaapi
1298 vda
1299 vdpau
1300 "
1301
1302 LIBRARY_LIST="
1303 avcodec
1304 avdevice
1305 avfilter
1306 avformat
1307 avresample
1308 avutil
1309 swscale
1310 "
1311
1312 LICENSE_LIST="
1313 gpl
1314 nonfree
1315 version3
1316 "
1317
1318 PROGRAM_LIST="
1319 avconv
1320 avplay
1321 avprobe
1322 "
1323
1324 SUBSYSTEM_LIST="
1325 dct
1326 doc
1327 error_resilience
1328 faan
1329 fft
1330 lsp
1331 lzo
1332 mdct
1333 network
1334 rdft
1335 "
1336
1337 CONFIG_LIST="
1338 $COMPONENT_LIST
1339 $EXAMPLE_LIST
1340 $EXTERNAL_LIBRARY_LIST
1341 $FEATURE_LIST
1342 $HW_CODECS_LIST
1343 $HWACCEL_LIST
1344 $LICENSE_LIST
1345 $LIBRARY_LIST
1346 $PROGRAM_LIST
1347 $SUBSYSTEM_LIST
1348 memalign_hack
1349 neon_clobber_test
1350 pic
1351 pod2man
1352 texi2html
1353 thumb
1354 valgrind_backtrace
1355 xmm_clobber_test
1356 "
1357
1358 THREADS_LIST="
1359 pthreads
1360 w32threads
1361 "
1362
1363 ATOMICS_LIST="
1364 atomics_gcc
1365 atomics_suncc
1366 atomics_win32
1367 "
1368
1369 ARCH_LIST="
1370 aarch64
1371 alpha
1372 arm
1373 avr32
1374 avr32_ap
1375 avr32_uc
1376 bfin
1377 ia64
1378 m68k
1379 mips
1380 mips64
1381 parisc
1382 ppc
1383 ppc64
1384 s390
1385 sh4
1386 sparc
1387 sparc64
1388 tilegx
1389 tilepro
1390 tomi
1391 x86
1392 x86_32
1393 x86_64
1394 "
1395
1396 ARCH_EXT_LIST_ARM="
1397 armv5te
1398 armv6
1399 armv6t2
1400 armv8
1401 neon
1402 vfp
1403 vfpv3
1404 "
1405
1406 ARCH_EXT_LIST_X86_SIMD="
1407 amd3dnow
1408 amd3dnowext
1409 avx
1410 avx2
1411 fma3
1412 fma4
1413 mmx
1414 mmxext
1415 sse
1416 sse2
1417 sse3
1418 sse4
1419 sse42
1420 ssse3
1421 xop
1422 "
1423
1424 ARCH_EXT_LIST_PPC="
1425 altivec
1426 dcbzl
1427 ldbrx
1428 power8
1429 ppc4xx
1430 vsx
1431 "
1432
1433 ARCH_EXT_LIST_X86="
1434 $ARCH_EXT_LIST_X86_SIMD
1435 cpunop
1436 i686
1437 "
1438
1439 ARCH_EXT_LIST_MIPS="
1440 loongson
1441 mips32r1
1442 mips64r1
1443 mips32r2
1444 mips64r2
1445 mips32r6
1446 mips64r6
1447 "
1448
1449 ARCH_EXT_LIST="
1450 $ARCH_EXT_LIST_ARM
1451 $ARCH_EXT_LIST_MIPS
1452 $ARCH_EXT_LIST_PPC
1453 $ARCH_EXT_LIST_X86
1454 vis
1455 "
1456
1457 ARCH_FEATURES="
1458 aligned_stack
1459 fast_64bit
1460 fast_clz
1461 fast_cmov
1462 local_aligned_8
1463 local_aligned_16
1464 simd_align_16
1465 "
1466
1467 BUILTIN_LIST="
1468 atomic_cas_ptr
1469 machine_rw_barrier
1470 MemoryBarrier
1471 mm_empty
1472 rdtsc
1473 sem_timedwait
1474 sync_val_compare_and_swap
1475 "
1476 HAVE_LIST_CMDLINE="
1477 inline_asm
1478 symver
1479 yasm
1480 "
1481
1482 HAVE_LIST_PUB="
1483 bigendian
1484 fast_unaligned
1485 "
1486
1487 HEADERS_LIST="
1488 AVFoundation_AVFoundation_h
1489 alsa_asoundlib_h
1490 altivec_h
1491 arpa_inet_h
1492 cdio_paranoia_h
1493 cdio_paranoia_paranoia_h
1494 dispatch_dispatch_h
1495 dev_bktr_ioctl_bt848_h
1496 dev_bktr_ioctl_meteor_h
1497 dev_ic_bt8xx_h
1498 dev_video_bktr_ioctl_bt848_h
1499 dev_video_meteor_ioctl_meteor_h
1500 direct_h
1501 dlfcn_h
1502 d3d11_h
1503 dxva_h
1504 gsm_h
1505 io_h
1506 mach_mach_time_h
1507 machine_ioctl_bt848_h
1508 machine_ioctl_meteor_h
1509 malloc_h
1510 poll_h
1511 sndio_h
1512 soundcard_h
1513 sys_mman_h
1514 sys_param_h
1515 sys_resource_h
1516 sys_select_h
1517 sys_soundcard_h
1518 sys_time_h
1519 sys_un_h
1520 sys_videoio_h
1521 unistd_h
1522 valgrind_valgrind_h
1523 windows_h
1524 winsock2_h
1525 "
1526
1527 INTRINSICS_LIST="
1528 intrinsics_neon
1529 "
1530
1531 MATH_FUNCS="
1532 atanf
1533 atan2f
1534 cbrtf
1535 cosf
1536 exp2
1537 exp2f
1538 expf
1539 isinf
1540 isnan
1541 ldexpf
1542 llrint
1543 llrintf
1544 log2
1545 log2f
1546 log10f
1547 lrint
1548 lrintf
1549 powf
1550 rint
1551 round
1552 roundf
1553 sinf
1554 trunc
1555 truncf
1556 "
1557
1558 SYSTEM_FUNCS="
1559 aligned_malloc
1560 clock_gettime
1561 closesocket
1562 CommandLineToArgvW
1563 CoTaskMemFree
1564 CryptGenRandom
1565 dlopen
1566 fcntl
1567 flt_lim
1568 fork
1569 getaddrinfo
1570 gethrtime
1571 getopt
1572 GetProcessAffinityMask
1573 GetProcessMemoryInfo
1574 GetProcessTimes
1575 getrusage
1576 GetSystemTimeAsFileTime
1577 gettimeofday
1578 gmtime_r
1579 inet_aton
1580 isatty
1581 jack_port_get_latency_range
1582 LoadLibrary
1583 localtime_r
1584 mach_absolute_time
1585 MapViewOfFile
1586 memalign
1587 mkstemp
1588 mmap
1589 mprotect
1590 nanosleep
1591 posix_memalign
1592 sched_getaffinity
1593 SetConsoleTextAttribute
1594 setmode
1595 setrlimit
1596 Sleep
1597 strerror_r
1598 sysconf
1599 sysctl
1600 usleep
1601 VirtualAlloc
1602 "
1603
1604 TOOLCHAIN_FEATURES="
1605 as_dn_directive
1606 as_func
1607 as_object_arch
1608 asm_mod_q
1609 attribute_may_alias
1610 attribute_packed
1611 ebp_available
1612 ebx_available
1613 gnu_as
1614 ibm_asm
1615 inline_asm_labels
1616 pragma_deprecated
1617 symver_asm_label
1618 symver_gnu_asm
1619 vfp_args
1620 xform_asm
1621 xmm_clobbers
1622 "
1623
1624 TYPES_LIST="
1625 CONDITION_VARIABLE_Ptr
1626 socklen_t
1627 struct_addrinfo
1628 struct_group_source_req
1629 struct_ip_mreq_source
1630 struct_ipv6_mreq
1631 struct_pollfd
1632 struct_rusage_ru_maxrss
1633 struct_sockaddr_in6
1634 struct_sockaddr_sa_len
1635 struct_sockaddr_storage
1636 struct_v4l2_frmivalenum_discrete
1637 "
1638
1639 HAVE_LIST="
1640 $ARCH_EXT_LIST
1641 $(add_suffix _external $ARCH_EXT_LIST)
1642 $(add_suffix _inline $ARCH_EXT_LIST)
1643 $ARCH_FEATURES
1644 $ATOMICS_LIST
1645 $BUILTIN_LIST
1646 $HAVE_LIST_CMDLINE
1647 $HAVE_LIST_PUB
1648 $HEADERS_LIST
1649 $INTRINSICS_LIST
1650 $MATH_FUNCS
1651 $SYSTEM_FUNCS
1652 $THREADS_LIST
1653 $TOOLCHAIN_FEATURES
1654 $TYPES_LIST
1655 atomics_native
1656 dos_paths
1657 dxva2_lib
1658 libc_msvcrt
1659 libdc1394_1
1660 libdc1394_2
1661 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1662 sdl
1663 section_data_rel_ro
1664 threads
1665 vaapi_drm
1666 vaapi_x11
1667 vdpau_x11
1668 xlib
1669 "
1670
1671 # options emitted with CONFIG_ prefix but not available on the command line
1672 CONFIG_EXTRA="
1673 aandcttables
1674 ac3dsp
1675 audio_frame_queue
1676 audiodsp
1677 blockdsp
1678 bswapdsp
1679 cabac
1680 dirac_parse
1681 dvprofile
1682 faandct
1683 faanidct
1684 fdctdsp
1685 flacdsp
1686 fmtconvert
1687 g722dsp
1688 gcrypt
1689 gmp
1690 golomb
1691 gplv3
1692 h263dsp
1693 h264chroma
1694 h264dsp
1695 h264pred
1696 h264qpel
1697 hpeldsp
1698 huffman
1699 huffyuvdsp
1700 huffyuvencdsp
1701 idctdsp
1702 iirfilter
1703 imdct15
1704 intrax8
1705 iso_media
1706 ividsp
1707 jpegtables
1708 libx262
1709 lgplv3
1710 lpc
1711 lzf
1712 me_cmp
1713 mpeg_er
1714 mpegaudio
1715 mpegaudiodsp
1716 mpegvideo
1717 mpegvideoenc
1718 mss34dsp
1719 pixblockdsp
1720 qpeldsp
1721 qsv
1722 qsvdec
1723 qsvenc
1724 rangecoder
1725 riffdec
1726 riffenc
1727 rtpdec
1728 rtpenc_chain
1729 rv34dsp
1730 sinewin
1731 snappy
1732 srtp
1733 startcode
1734 texturedsp
1735 texturedspenc
1736 tpeldsp
1737 vaapi_encode
1738 vc1dsp
1739 videodsp
1740 vp3dsp
1741 vp56dsp
1742 vp8dsp
1743 wma_freqs
1744 wmv2dsp
1745 "
1746
1747 CMDLINE_SELECT="
1748 $ARCH_EXT_LIST
1749 $CONFIG_LIST
1750 $HAVE_LIST_CMDLINE
1751 $THREADS_LIST
1752 asm
1753 cross_compile
1754 debug
1755 extra_warnings
1756 logging
1757 lto
1758 optimizations
1759 rpath
1760 "
1761
1762 PATHS_LIST="
1763 bindir
1764 datadir
1765 docdir
1766 incdir
1767 libdir
1768 mandir
1769 prefix
1770 shlibdir
1771 "
1772
1773 CMDLINE_SET="
1774 $PATHS_LIST
1775 ar
1776 arch
1777 as
1778 build_suffix
1779 cc
1780 objcc
1781 cpu
1782 cross_prefix
1783 custom_allocator
1784 dep_cc
1785 env
1786 extra_version
1787 host_cc
1788 host_cflags
1789 host_ld
1790 host_ldflags
1791 host_libs
1792 host_os
1793 ld
1794 logfile
1795 malloc_prefix
1796 nm
1797 optflags
1798 pkg_config
1799 pkg_config_flags
1800 random_seed
1801 samples
1802 sysinclude
1803 sysroot
1804 target_exec
1805 target_os
1806 target_path
1807 target_samples
1808 toolchain
1809 "
1810
1811 CMDLINE_APPEND="
1812 extra_cflags
1813 extra_objcflags
1814 host_cppflags
1815 "
1816
1817 # code dependency declarations
1818
1819 # architecture extensions
1820
1821 armv5te_deps="arm"
1822 armv6_deps="arm"
1823 armv6t2_deps="arm"
1824 armv8_deps="aarch64"
1825 neon_deps_any="aarch64 arm"
1826 intrinsics_neon_deps="neon"
1827 vfp_deps_any="aarch64 arm"
1828 vfpv3_deps="vfp"
1829
1830 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1831
1832 altivec_deps="ppc"
1833 ppc4xx_deps="ppc"
1834 vsx_deps="altivec"
1835 power8_deps="vsx"
1836
1837 cpunop_deps="i686"
1838 x86_64_select="i686"
1839 x86_64_suggest="fast_cmov"
1840
1841 amd3dnow_deps="mmx"
1842 amd3dnowext_deps="amd3dnow"
1843 i686_deps="x86"
1844 mmx_deps="x86"
1845 mmxext_deps="mmx"
1846 sse_deps="mmxext"
1847 sse2_deps="sse"
1848 sse3_deps="sse2"
1849 ssse3_deps="sse3"
1850 sse4_deps="ssse3"
1851 sse42_deps="sse4"
1852 avx_deps="sse42"
1853 xop_deps="avx"
1854 fma3_deps="avx"
1855 fma4_deps="avx"
1856 avx2_deps="avx"
1857
1858 mmx_external_deps="yasm"
1859 mmx_inline_deps="inline_asm"
1860 mmx_suggest="mmx_external mmx_inline"
1861
1862 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1863 eval dep=\$${ext}_deps
1864 eval ${ext}_external_deps='"${dep}_external"'
1865 eval ${ext}_inline_deps='"${dep}_inline"'
1866 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1867 done
1868
1869 aligned_stack_if_any="aarch64 ppc x86"
1870 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1871 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1872 fast_unaligned_if_any="aarch64 ppc x86"
1873 simd_align_16_if_any="altivec neon sse"
1874
1875 # system capabilities
1876 symver_if_any="symver_asm_label symver_gnu_asm"
1877 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1878
1879 # threading support
1880 atomics_gcc_if="sync_val_compare_and_swap"
1881 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1882 atomics_win32_if="MemoryBarrier"
1883 atomics_native_if_any="$ATOMICS_LIST"
1884 w32threads_deps="atomics_native"
1885 threads_if_any="$THREADS_LIST"
1886
1887 # subsystems
1888 dct_select="rdft"
1889 dirac_parse_select="golomb"
1890 error_resilience_select="me_cmp"
1891 faandct_deps="faan fdctdsp"
1892 faanidct_deps="faan idctdsp"
1893 h264dsp_select="startcode"
1894 intrax8_select="blockdsp idctdsp"
1895 mdct_select="fft"
1896 rdft_select="fft"
1897 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1898 mpeg_er_select="error_resilience"
1899 mpegaudio_select="mpegaudiodsp"
1900 mpegaudiodsp_select="dct"
1901 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1902 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1903 vc1dsp_select="h264chroma qpeldsp startcode"
1904
1905 # decoders / encoders
1906 aac_decoder_select="imdct15 mdct sinewin"
1907 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1908 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1909 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1910 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1911 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1912 adpcm_g722_decoder_select="g722dsp"
1913 adpcm_g722_encoder_select="g722dsp"
1914 aic_decoder_select="golomb idctdsp"
1915 alac_encoder_select="lpc"
1916 als_decoder_select="bswapdsp"
1917 amrnb_decoder_select="lsp"
1918 amrwb_decoder_select="lsp"
1919 amv_decoder_select="sp5x_decoder"
1920 ape_decoder_select="bswapdsp"
1921 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1922 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1923 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1924 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1925 atrac1_decoder_select="mdct sinewin"
1926 atrac3_decoder_select="mdct"
1927 atrac3p_decoder_select="mdct sinewin"
1928 bink_decoder_select="blockdsp hpeldsp"
1929 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1930 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1931 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1932 cllc_decoder_select="bswapdsp"
1933 comfortnoise_encoder_select="lpc"
1934 cook_decoder_select="audiodsp mdct sinewin"
1935 cscd_decoder_select="lzo"
1936 cscd_decoder_suggest="zlib"
1937 dca_decoder_select="fmtconvert mdct"
1938 dds_decoder_select="texturedsp"
1939 dnxhd_decoder_select="blockdsp idctdsp"
1940 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1941 dvvideo_decoder_select="dvprofile idctdsp"
1942 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1943 dxa_decoder_deps="zlib"
1944 dxv_decoder_select="lzf texturedsp"
1945 eac3_decoder_select="ac3_decoder"
1946 eac3_encoder_select="ac3_encoder"
1947 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1948 eatgq_decoder_select="aandcttables idctdsp"
1949 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1950 exr_decoder_deps="zlib"
1951 ffv1_decoder_select="golomb rangecoder"
1952 ffv1_encoder_select="rangecoder"
1953 ffvhuff_decoder_select="huffyuv_decoder"
1954 ffvhuff_encoder_select="huffyuv_encoder"
1955 fic_decoder_select="golomb"
1956 flac_decoder_select="flacdsp golomb"
1957 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1958 flashsv_decoder_deps="zlib"
1959 flashsv_encoder_deps="zlib"
1960 flashsv2_decoder_deps="zlib"
1961 flv_decoder_select="h263_decoder"
1962 flv_encoder_select="h263_encoder"
1963 fourxm_decoder_select="blockdsp bswapdsp"
1964 fraps_decoder_select="bswapdsp huffman"
1965 g2m_decoder_deps="zlib"
1966 g2m_decoder_select="blockdsp idctdsp jpegtables"
1967 h261_decoder_select="mpeg_er mpegvideo"
1968 h261_encoder_select="aandcttables mpegvideoenc"
1969 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1970 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1971 h263i_decoder_select="h263_decoder"
1972 h263p_encoder_select="h263_encoder"
1973 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1974 h264_decoder_suggest="error_resilience"
1975 hap_decoder_select="snappy texturedsp"
1976 hap_encoder_deps="libsnappy"
1977 hap_encoder_select="texturedspenc"
1978 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1979 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1980 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1981 iac_decoder_select="imc_decoder"
1982 imc_decoder_select="bswapdsp fft mdct sinewin"
1983 indeo3_decoder_select="hpeldsp"
1984 indeo4_decoder_select="ividsp"
1985 indeo5_decoder_select="ividsp"
1986 interplay_video_decoder_select="hpeldsp"
1987 jpegls_decoder_select="golomb mjpeg_decoder"
1988 jpegls_encoder_select="golomb"
1989 jv_decoder_select="blockdsp"
1990 lagarith_decoder_select="huffyuvdsp"
1991 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1992 loco_decoder_select="golomb"
1993 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1994 metasound_decoder_select="lsp mdct sinewin"
1995 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1996 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1997 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1998 mjpegb_decoder_select="mjpeg_decoder"
1999 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2000 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2001 mlp_decoder_select="mlp_parser"
2002 motionpixels_decoder_select="bswapdsp"
2003 mp1_decoder_select="mpegaudio"
2004 mp1float_decoder_select="mpegaudio"
2005 mp2_decoder_select="mpegaudio"
2006 mp2float_decoder_select="mpegaudio"
2007 mp3_decoder_select="mpegaudio"
2008 mp3adu_decoder_select="mpegaudio"
2009 mp3adufloat_decoder_select="mpegaudio"
2010 mp3float_decoder_select="mpegaudio"
2011 mp3on4_decoder_select="mpegaudio"
2012 mp3on4float_decoder_select="mpegaudio"
2013 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2014 mpc8_decoder_select="mpegaudiodsp"
2015 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2016 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2017 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2018 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2019 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2020 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2021 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2022 mpeg4_encoder_select="h263_encoder"
2023 msa1_decoder_select="mss34dsp"
2024 msmpeg4v1_decoder_select="h263_decoder"
2025 msmpeg4v2_decoder_select="h263_decoder"
2026 msmpeg4v2_encoder_select="h263_encoder"
2027 msmpeg4v3_decoder_select="h263_decoder"
2028 msmpeg4v3_encoder_select="h263_encoder"
2029 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2030 mts2_decoder_select="mss34dsp"
2031 mxpeg_decoder_select="mjpeg_decoder"
2032 nellymoser_decoder_select="mdct sinewin"
2033 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2034 nuv_decoder_select="idctdsp lzo"
2035 on2avc_decoder_select="mdct"
2036 opus_decoder_deps="avresample"
2037 opus_decoder_select="imdct15"
2038 png_decoder_deps="zlib"
2039 png_encoder_deps="zlib"
2040 png_encoder_select="huffyuvencdsp"
2041 prores_decoder_select="idctdsp"
2042 prores_encoder_select="fdctdsp"
2043 qcelp_decoder_select="lsp"
2044 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2045 ra_144_encoder_select="audio_frame_queue lpc"
2046 ralf_decoder_select="golomb"
2047 rscc_decoder_deps="zlib"
2048 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2049 rv10_encoder_select="h263_encoder"
2050 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2051 rv20_encoder_select="h263_encoder"
2052 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2053 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2054 screenpresso_decoder_deps="zlib"
2055 shorten_decoder_select="golomb"
2056 sipr_decoder_select="lsp"
2057 sp5x_decoder_select="mjpeg_decoder"
2058 svq1_decoder_select="hpeldsp"
2059 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2060 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2061 svq3_decoder_suggest="zlib"
2062 tak_decoder_select="audiodsp"
2063 tdsc_decoder_deps="zlib"
2064 tdsc_decoder_select="mjpeg_decoder"
2065 theora_decoder_select="vp3_decoder"
2066 thp_decoder_select="mjpeg_decoder"
2067 tiff_decoder_suggest="zlib"
2068 tiff_encoder_suggest="zlib"
2069 truehd_decoder_select="mlp_decoder"
2070 truemotion2_decoder_select="bswapdsp"
2071 truespeech_decoder_select="bswapdsp"
2072 tscc_decoder_deps="zlib"
2073 txd_decoder_select="texturedsp"
2074 twinvq_decoder_select="mdct lsp sinewin"
2075 utvideo_decoder_select="bswapdsp"
2076 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2077 vble_decoder_select="huffyuvdsp"
2078 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2079 vc1image_decoder_select="vc1_decoder"
2080 vorbis_decoder_select="mdct"
2081 vorbis_encoder_select="mdct"
2082 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2083 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2084 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2085 vp6a_decoder_select="vp6_decoder"
2086 vp6f_decoder_select="vp6_decoder"
2087 vp7_decoder_select="h264pred videodsp vp8dsp"
2088 vp8_decoder_select="h264pred videodsp vp8dsp"
2089 vp9_decoder_select="videodsp"
2090 webp_decoder_select="vp8_decoder"
2091 wmapro_decoder_select="mdct sinewin wma_freqs"
2092 wmav1_decoder_select="mdct sinewin wma_freqs"
2093 wmav1_encoder_select="mdct sinewin wma_freqs"
2094 wmav2_decoder_select="mdct sinewin wma_freqs"
2095 wmav2_encoder_select="mdct sinewin wma_freqs"
2096 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2097 wmv1_decoder_select="h263_decoder"
2098 wmv1_encoder_select="h263_encoder"
2099 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2100 wmv2_encoder_select="h263_encoder wmv2dsp"
2101 wmv3_decoder_select="vc1_decoder"
2102 wmv3image_decoder_select="wmv3_decoder"
2103 zerocodec_decoder_deps="zlib"
2104 zlib_decoder_deps="zlib"
2105 zlib_encoder_deps="zlib"
2106 zmbv_decoder_deps="zlib"
2107 zmbv_encoder_deps="zlib"
2108
2109 # hardware accelerators
2110 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2111 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2112 vaapi_deps="va_va_h"
2113 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2114 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2115 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2116
2117 h263_vaapi_hwaccel_deps="vaapi"
2118 h263_vaapi_hwaccel_select="h263_decoder"
2119 h264_d3d11va_hwaccel_deps="d3d11va"
2120 h264_d3d11va_hwaccel_select="h264_decoder"
2121 h264_dxva2_hwaccel_deps="dxva2"
2122 h264_dxva2_hwaccel_select="h264_decoder"
2123 h264_mmal_decoder_deps="mmal"
2124 h264_mmal_decoder_select="mmal"
2125 h264_mmal_hwaccel_deps="mmal"
2126 h264_omx_encoder_deps="omx"
2127 h264_qsv_hwaccel_deps="libmfx"
2128 h264_vaapi_hwaccel_deps="vaapi"
2129 h264_vaapi_hwaccel_select="h264_decoder"
2130 h264_vda_hwaccel_deps="vda"
2131 h264_vda_hwaccel_select="h264_decoder"
2132 h264_vda_old_hwaccel_deps="vda"
2133 h264_vda_old_hwaccel_select="h264_decoder"
2134 h264_vdpau_hwaccel_deps="vdpau"
2135 h264_vdpau_hwaccel_select="h264_decoder"
2136 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2137 hevc_d3d11va_hwaccel_select="hevc_decoder"
2138 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2139 hevc_dxva2_hwaccel_select="hevc_decoder"
2140 hevc_qsv_hwaccel_deps="libmfx"
2141 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2142 hevc_vdpau_hwaccel_select="hevc_decoder"
2143 mpeg1_vdpau_hwaccel_deps="vdpau"
2144 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2145 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2146 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2147 mpeg2_dxva2_hwaccel_deps="dxva2"
2148 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2149 mpeg2_mmal_decoder_deps="mmal"
2150 mpeg2_mmal_decoder_select="mmal"
2151 mpeg2_mmal_hwaccel_deps="mmal"
2152 mpeg2_qsv_hwaccel_deps="libmfx"
2153 mpeg2_vaapi_hwaccel_deps="vaapi"
2154 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2155 mpeg2_vdpau_hwaccel_deps="vdpau"
2156 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2157 mpeg4_omx_encoder_deps="omx"
2158 mpeg4_vaapi_hwaccel_deps="vaapi"
2159 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2160 mpeg4_vdpau_hwaccel_deps="vdpau"
2161 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2162 vc1_d3d11va_hwaccel_deps="d3d11va"
2163 vc1_d3d11va_hwaccel_select="vc1_decoder"
2164 vc1_dxva2_hwaccel_deps="dxva2"
2165 vc1_dxva2_hwaccel_select="vc1_decoder"
2166 vc1_mmal_decoder_deps="mmal"
2167 vc1_mmal_decoder_select="mmal"
2168 vc1_mmal_hwaccel_deps="mmal"
2169 vc1_vaapi_hwaccel_deps="vaapi"
2170 vc1_vaapi_hwaccel_select="vc1_decoder"
2171 vc1_vdpau_hwaccel_deps="vdpau"
2172 vc1_vdpau_hwaccel_select="vc1_decoder"
2173 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2174 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2175 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2176 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2177
2178 # hardware-accelerated codecs
2179 nvenc_deps_any="dlopen LoadLibrary"
2180 nvenc_extralibs='$ldl'
2181 omx_deps="dlopen pthreads"
2182 omx_extralibs='$ldl'
2183 qsvdec_select="qsv"
2184 qsvenc_select="qsv"
2185 vaapi_encode_deps="vaapi"
2186
2187 hwupload_cuda_filter_deps="cuda"
2188 scale_npp_filter_deps="cuda libnpp"
2189
2190 h264_nvenc_encoder_deps="nvenc"
2191 h264_qsv_decoder_deps="libmfx"
2192 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2193 h264_qsv_encoder_deps="libmfx"
2194 h264_qsv_encoder_select="qsvenc"
2195 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2196 h264_vaapi_encoder_select="vaapi_encode golomb"
2197
2198 hevc_nvenc_encoder_deps="nvenc"
2199 hevc_qsv_decoder_deps="libmfx"
2200 hevc_qsv_encoder_deps="libmfx"
2201 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2202 hevc_qsv_encoder_select="qsvenc"
2203 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2204 hevc_vaapi_encoder_select="vaapi_encode golomb"
2205 mpeg2_qsv_decoder_deps="libmfx"
2206 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2207 mpeg2_qsv_encoder_deps="libmfx"
2208 mpeg2_qsv_encoder_select="qsvenc"
2209
2210 nvenc_h264_encoder_deps="nvenc"
2211 nvenc_hevc_encoder_deps="nvenc"
2212
2213 # parsers
2214 h264_parser_select="golomb h264dsp"
2215 hevc_parser_select="golomb"
2216 mpegvideo_parser_select="mpegvideo"
2217 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2218 vc1_parser_select="vc1dsp"
2219
2220 # bitstream_filters
2221 mjpeg2jpeg_bsf_select="jpegtables"
2222
2223 # external libraries
2224 libdcadec_decoder_deps="libdcadec"
2225 libfaac_encoder_deps="libfaac"
2226 libfaac_encoder_select="audio_frame_queue"
2227 libfdk_aac_decoder_deps="libfdk_aac"
2228 libfdk_aac_encoder_deps="libfdk_aac"
2229 libfdk_aac_encoder_select="audio_frame_queue"
2230 libgsm_decoder_deps="libgsm"
2231 libgsm_encoder_deps="libgsm"
2232 libgsm_ms_decoder_deps="libgsm"
2233 libgsm_ms_encoder_deps="libgsm"
2234 libilbc_decoder_deps="libilbc"
2235 libilbc_encoder_deps="libilbc"
2236 libkvazaar_encoder_deps="libkvazaar"
2237 libmp3lame_encoder_deps="libmp3lame"
2238 libmp3lame_encoder_select="audio_frame_queue"
2239 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2240 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2241 libopencore_amrnb_encoder_select="audio_frame_queue"
2242 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2243 libopenh264_encoder_deps="libopenh264"
2244 libopenjpeg_decoder_deps="libopenjpeg"
2245 libopenjpeg_encoder_deps="libopenjpeg"
2246 libopus_decoder_deps="libopus"
2247 libopus_encoder_deps="libopus"
2248 libopus_encoder_select="audio_frame_queue"
2249 libschroedinger_decoder_deps="libschroedinger"
2250 libschroedinger_encoder_deps="libschroedinger"
2251 libspeex_decoder_deps="libspeex"
2252 libspeex_encoder_deps="libspeex"
2253 libspeex_encoder_select="audio_frame_queue"
2254 libtheora_encoder_deps="libtheora"
2255 libtwolame_encoder_deps="libtwolame"
2256 libvo_aacenc_encoder_deps="libvo_aacenc"
2257 libvo_aacenc_encoder_select="audio_frame_queue"
2258 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2259 libvorbis_encoder_deps="libvorbis"
2260 libvorbis_encoder_select="audio_frame_queue"
2261 libvpx_vp8_decoder_deps="libvpx"
2262 libvpx_vp8_encoder_deps="libvpx"
2263 libvpx_vp9_decoder_deps="libvpx"
2264 libvpx_vp9_encoder_deps="libvpx"
2265 libwavpack_encoder_deps="libwavpack"
2266 libwebp_encoder_deps="libwebp"
2267 libx262_encoder_deps="libx262"
2268 libx264_encoder_deps="libx264"
2269 libx265_encoder_deps="libx265"
2270 libxavs_encoder_deps="libxavs"
2271 libxvid_encoder_deps="libxvid"
2272
2273 # demuxers / muxers
2274 ac3_demuxer_select="ac3_parser"
2275 asf_demuxer_select="riffdec"
2276 asf_muxer_select="riffenc"
2277 asf_stream_muxer_select="asf_muxer"
2278 avi_demuxer_select="iso_media riffdec"
2279 avi_muxer_select="riffenc"
2280 avisynth_demuxer_deps="avisynth"
2281 avisynth_demuxer_select="riffdec"
2282 caf_demuxer_select="iso_media riffdec"
2283 dash_muxer_select="mp4_muxer"
2284 dirac_demuxer_select="dirac_parser"
2285 dv_demuxer_select="dvprofile"
2286 dv_muxer_select="dvprofile"
2287 dxa_demuxer_select="riffdec"
2288 eac3_demuxer_select="ac3_parser"
2289 f4v_muxer_select="mov_muxer"
2290 flac_demuxer_select="flac_parser"
2291 hds_muxer_select="flv_muxer"
2292 hls_muxer_select="mpegts_muxer"
2293 ipod_muxer_select="mov_muxer"
2294 ismv_muxer_select="mov_muxer"
2295 matroska_audio_muxer_select="matroska_muxer"
2296 matroska_demuxer_select="iso_media riffdec"
2297 matroska_demuxer_suggest="bzlib lzo zlib"
2298 matroska_muxer_select="iso_media riffenc"
2299 mmf_muxer_select="riffenc"
2300 mov_demuxer_select="iso_media riffdec"
2301 mov_demuxer_suggest="zlib"
2302 mov_muxer_select="iso_media riffenc rtpenc_chain"
2303 mp3_demuxer_select="mpegaudio_parser"
2304 mp4_muxer_select="mov_muxer"
2305 mpegts_demuxer_select="iso_media"
2306 mpegts_muxer_select="adts_muxer latm_muxer"
2307 mpegtsraw_demuxer_select="mpegts_demuxer"
2308 mxf_d10_muxer_select="mxf_muxer"
2309 nut_muxer_select="riffenc"
2310 nuv_demuxer_select="riffdec"
2311 oga_muxer_select="ogg_muxer"
2312 ogg_demuxer_select="dirac_parse"
2313 opus_muxer_select="ogg_muxer"
2314 psp_muxer_select="mov_muxer"
2315 rtp_demuxer_select="sdp_demuxer"
2316 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2317 rtsp_demuxer_select="http_protocol rtpdec"
2318 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2319 sap_demuxer_select="sdp_demuxer"
2320 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2321 sdp_demuxer_select="rtpdec"
2322 smoothstreaming_muxer_select="ismv_muxer"
2323 spdif_muxer_select="aac_parser"
2324 spx_muxer_select="ogg_muxer"
2325 swf_demuxer_suggest="zlib"
2326 tak_demuxer_select="tak_parser"
2327 tg2_muxer_select="mov_muxer"
2328 tgp_muxer_select="mov_muxer"
2329 w64_demuxer_select="wav_demuxer"
2330 wav_demuxer_select="riffdec"
2331 wav_muxer_select="riffenc"
2332 webm_muxer_select="iso_media riffenc"
2333 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2334 wtv_demuxer_select="mpegts_demuxer riffdec"
2335 xmv_demuxer_select="riffdec"
2336 xwma_demuxer_select="riffdec"
2337
2338 # indevs / outdevs
2339 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2340 alsa_outdev_deps="alsa_asoundlib_h"
2341 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2342 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2343 dv1394_indev_deps="dv1394"
2344 dv1394_indev_select="dv_demuxer"
2345 fbdev_indev_deps="linux_fb_h"
2346 jack_indev_deps="jack_jack_h"
2347 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2348 libcdio_indev_deps="libcdio"
2349 libdc1394_indev_deps="libdc1394"
2350 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2351 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2352 pulse_indev_deps="libpulse"
2353 sndio_indev_deps="sndio_h"
2354 sndio_outdev_deps="sndio_h"
2355 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2356 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2357 vfwcap_indev_extralibs="-lavicap32"
2358 x11grab_indev_deps="x11grab"
2359 x11grab_xcb_indev_deps="libxcb"
2360
2361 # protocols
2362 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2363 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2364 ffrtmpcrypt_protocol_select="tcp_protocol"
2365 ffrtmphttp_protocol_deps="!librtmp_protocol"
2366 ffrtmphttp_protocol_select="http_protocol"
2367 gopher_protocol_select="network"
2368 http_protocol_select="tcp_protocol"
2369 httpproxy_protocol_select="tcp_protocol"
2370 https_protocol_select="tls_protocol"
2371 icecast_protocol_select="http_protocol"
2372 librtmp_protocol_deps="librtmp"
2373 librtmpe_protocol_deps="librtmp"
2374 librtmps_protocol_deps="librtmp"
2375 librtmpt_protocol_deps="librtmp"
2376 librtmpte_protocol_deps="librtmp"
2377 mmsh_protocol_select="http_protocol"
2378 mmst_protocol_select="network"
2379 rtmp_protocol_deps="!librtmp_protocol"
2380 rtmp_protocol_select="tcp_protocol"
2381 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2382 rtmps_protocol_deps="!librtmp_protocol"
2383 rtmps_protocol_select="tls_protocol"
2384 rtmpt_protocol_select="ffrtmphttp_protocol"
2385 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2386 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2387 rtp_protocol_select="udp_protocol"
2388 sctp_protocol_deps="struct_sctp_event_subscribe"
2389 sctp_protocol_select="network"
2390 srtp_protocol_select="rtp_protocol srtp"
2391 tcp_protocol_select="network"
2392 tls_gnutls_protocol_deps="gnutls"
2393 tls_gnutls_protocol_select="tcp_protocol"
2394 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2395 tls_openssl_protocol_select="tcp_protocol"
2396 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2397 udp_protocol_select="network"
2398 unix_protocol_deps="sys_un_h"
2399 unix_protocol_select="network"
2400
2401 # filters
2402 blackframe_filter_deps="gpl"
2403 boxblur_filter_deps="gpl"
2404 bs2b_filter_deps="libbs2b"
2405 cropdetect_filter_deps="gpl"
2406 delogo_filter_deps="gpl"
2407 drawtext_filter_deps="libfreetype"
2408 frei0r_filter_deps="frei0r dlopen"
2409 frei0r_filter_extralibs='$ldl'
2410 frei0r_src_filter_deps="frei0r dlopen"
2411 frei0r_src_filter_extralibs='$ldl'
2412 hqdn3d_filter_deps="gpl"
2413 interlace_filter_deps="gpl"
2414 ocv_filter_deps="libopencv"
2415 resample_filter_deps="avresample"
2416 scale_filter_deps="swscale"
2417 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2418
2419 # examples
2420 avcodec_example_deps="avcodec avutil"
2421 filter_audio_example_deps="avfilter avutil"
2422 metadata_example_deps="avformat avutil"
2423 output_example_deps="avcodec avformat avutil swscale"
2424 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2425 transcode_aac_example_deps="avcodec avformat avresample"
2426
2427 # libraries, in linking order
2428 avcodec_deps="avutil"
2429 avdevice_deps="avformat avcodec avutil"
2430 avfilter_deps="avutil"
2431 avformat_deps="avcodec avutil"
2432 avresample_deps="avutil"
2433 swscale_deps="avutil"
2434
2435 # programs
2436 avconv_deps="avcodec avfilter avformat avresample swscale"
2437 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2438 fps_filter null_filter resample_filter scale_filter
2439 setpts_filter trim_filter"
2440 avplay_deps="avcodec avfilter avformat avresample sdl"
2441 avplay_libs='$sdl_libs'
2442 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2443 avprobe_deps="avcodec avformat"
2444
2445 # documentation
2446 pod2man_deps="doc"
2447 texi2html_deps="doc"
2448
2449 # default parameters
2450
2451 logfile="config.log"
2452
2453 # installation paths
2454 prefix_default="/usr/local"
2455 bindir_default='${prefix}/bin'
2456 datadir_default='${prefix}/share/avconv'
2457 docdir_default='${prefix}/share/doc/libav'
2458 incdir_default='${prefix}/include'
2459 libdir_default='${prefix}/lib'
2460 mandir_default='${prefix}/share/man'
2461 shlibdir_default="$libdir_default"
2462
2463 # toolchain
2464 ar_default="ar"
2465 cc_default="gcc"
2466 host_cc_default="gcc"
2467 cp_f="cp -f"
2468 ln_s="ln -s -f"
2469 nm_default="nm -g"
2470 objformat="elf"
2471 pkg_config_default=pkg-config
2472 ranlib="ranlib"
2473 strip="strip"
2474 yasmexe="yasm"
2475
2476 # machine
2477 arch_default=$(uname -m)
2478 cpu="generic"
2479 intrinsics="none"
2480
2481 # OS
2482 target_os_default=$(tolower $(uname -s))
2483 host_os=$target_os_default
2484
2485 # configurable options
2486 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2487
2488 enable asm
2489 enable debug
2490 enable doc
2491 enable faan faandct faanidct
2492 enable optimizations
2493 enable safe_bitstream_reader
2494 enable static
2495 enable swscale_alpha
2496 enable valgrind_backtrace
2497
2498 # By default, enable only those hwaccels that have no external dependencies.
2499 enable d3d11va dxva2 vda vdpau
2500
2501 # build settings
2502 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2503 LIBPREF="lib"
2504 LIBSUF=".a"
2505 FULLNAME='$(NAME)$(BUILDSUF)'
2506 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2507 SLIBPREF="lib"
2508 SLIBSUF=".so"
2509 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2510 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2511 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2512 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2513 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2514 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2515
2516 asflags_filter=echo
2517 cflags_filter=echo
2518 ldflags_filter=echo
2519
2520 AS_C='-c'
2521 AS_O='-o $@'
2522 CC_C='-c'
2523 CC_E='-E -o $@'
2524 CC_O='-o $@'
2525 OBJCC_C='-c'
2526 OBJCC_E='-E -o $@'
2527 OBJCC_O='-o $@'
2528 LD_O='-o $@'
2529 LD_LIB='-l%'
2530 LD_PATH='-L'
2531 HOSTCC_C='-c'
2532 HOSTCC_E='-E -o $@'
2533 HOSTCC_O='-o $@'
2534 HOSTLD_O='-o $@'
2535
2536 host_libs='-lm'
2537 host_cflags_filter=echo
2538 host_ldflags_filter=echo
2539
2540 target_path='$(CURDIR)'
2541
2542 # since the object filename is not given with the -MM flag, the compiler
2543 # is only able to print the basename, and we must add the path ourselves
2544 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2545 DEPFLAGS='-MM'
2546
2547 # find source path
2548 if test -f configure; then
2549 source_path=.
2550 else
2551 source_path=$(cd $(dirname "$0"); pwd)
2552 echo "$source_path" | grep -q '[[:blank:]]' &&
2553 die "Out of tree builds are impossible with whitespace in source path."
2554 test -e "$source_path/config.h" &&
2555 die "Out of tree builds are impossible with config.h in source dir."
2556 fi
2557
2558 for v in "$@"; do
2559 r=${v#*=}
2560 l=${v%"$r"}
2561 r=$(sh_quote "$r")
2562 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2563 done
2564
2565 find_things(){
2566 thing=$1
2567 pattern=$2
2568 file=$source_path/$3
2569 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2570 }
2571
2572 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2573 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2574 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2575 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2576 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2577 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2578 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2579 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2580 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2581
2582 find_things_extern(){
2583 thing=$1
2584 pattern=$2
2585 file=$source_path/$3
2586 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2587 }
2588
2589 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2590 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2591
2592 ALL_COMPONENTS="
2593 $BSF_LIST
2594 $DECODER_LIST
2595 $DEMUXER_LIST
2596 $ENCODER_LIST
2597 $FILTER_LIST
2598 $HWACCEL_LIST
2599 $INDEV_LIST
2600 $MUXER_LIST
2601 $OUTDEV_LIST
2602 $PARSER_LIST
2603 $PROTOCOL_LIST
2604 "
2605
2606 for n in $COMPONENT_LIST; do
2607 v=$(toupper ${n%s})_LIST
2608 eval enable \$$v
2609 eval ${n}_if_any="\$$v"
2610 done
2611
2612 enable $ARCH_EXT_LIST
2613
2614 die_unknown(){
2615 echo "Unknown option \"$1\"."
2616 echo "See $0 --help for available options."
2617 exit 1
2618 }
2619
2620 print_3_columns() {
2621 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2622 }
2623
2624 show_list() {
2625 suffix=_$1
2626 shift
2627 echo $* | sed s/$suffix//g | print_3_columns
2628 exit 0
2629 }
2630
2631 rand_list(){
2632 IFS=', '
2633 set -- $*
2634 unset IFS
2635 for thing; do
2636 comp=${thing%:*}
2637 prob=${thing#$comp}
2638 prob=${prob#:}
2639 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2640 echo "prob ${prob:-0.5}"
2641 printf '%s\n' $comp
2642 done
2643 }
2644
2645 do_random(){
2646 action=$1
2647 shift
2648 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2649 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2650 }
2651
2652 for opt do
2653 optval="${opt#*=}"
2654 case "$opt" in
2655 --extra-ldflags=*)
2656 add_ldflags $optval
2657 ;;
2658 --extra-ldexeflags=*)
2659 add_ldexeflags $optval
2660 ;;
2661 --extra-libs=*)
2662 add_extralibs $optval
2663 ;;
2664 --disable-devices)
2665 disable $INDEV_LIST $OUTDEV_LIST
2666 ;;
2667 --enable-debug=*)
2668 debuglevel="$optval"
2669 ;;
2670 --disable-programs)
2671 disable $PROGRAM_LIST
2672 ;;
2673 --disable-everything)
2674 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2675 ;;
2676 --disable-all)
2677 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2678 disable $LIBRARY_LIST $PROGRAM_LIST doc
2679 ;;
2680 --enable-random|--disable-random)
2681 action=${opt%%-random}
2682 do_random ${action#--} $COMPONENT_LIST
2683 ;;
2684 --enable-random=*|--disable-random=*)
2685 action=${opt%%-random=*}
2686 do_random ${action#--} $optval
2687 ;;
2688 --enable-*=*|--disable-*=*)
2689 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2690 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2691 eval list=\$$(toupper $thing)_LIST
2692 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2693 $action $(filter "$name" $list)
2694 ;;
2695 --enable-avserver|--disable-avserver*)
2696 warn "avserver has been removed, the ${opt} option is only"\
2697 "provided for compatibility and will be removed in the future"
2698 ;;
2699 --enable-?*|--disable-?*)
2700 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2701 if is_in $option $COMPONENT_LIST; then
2702 test $action = disable && action=unset
2703 eval $action \$$(toupper ${option%s})_LIST
2704 elif is_in $option $CMDLINE_SELECT; then
2705 $action $option
2706 else
2707 die_unknown $opt
2708 fi
2709 ;;
2710 --list-*)
2711 NAME="${opt#--list-}"
2712 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2713 NAME=${NAME%s}
2714 eval show_list $NAME \$$(toupper $NAME)_LIST
2715 ;;
2716 --help|-h) show_help
2717 ;;
2718 *)
2719 optname="${opt%%=*}"
2720 optname="${optname#--}"
2721 optname=$(echo "$optname" | sed 's/-/_/g')
2722 if is_in $optname $CMDLINE_SET; then
2723 eval $optname='$optval'
2724 elif is_in $optname $CMDLINE_APPEND; then
2725 append $optname "$optval"
2726 else
2727 die_unknown $opt
2728 fi
2729 ;;
2730 esac
2731 done
2732
2733 for e in $env; do
2734 eval "export $e"
2735 done
2736
2737 disabled logging && logfile=/dev/null
2738
2739 # Disable all the library-specific components if the library itself
2740 # is disabled, see AVCODEC_LIST and following _LIST variables.
2741
2742 disable_components(){
2743 disabled ${1} && disable $(
2744 eval components="\$$(toupper ${1})_COMPONENTS"
2745 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2746 )
2747 }
2748
2749 map 'disable_components $v' $LIBRARY_LIST
2750
2751 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2752 set >> $logfile
2753
2754 case "$toolchain" in
2755 *-asan)
2756 cc_default="${toolchain%-asan}"
2757 add_cflags -fsanitize=address
2758 add_ldflags -fsanitize=address
2759 ;;
2760 *-msan)
2761 cc_default="${toolchain%-msan}"
2762 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2763 add_ldflags -fsanitize=memory
2764 ;;
2765 *-tsan)
2766 cc_default="${toolchain%-tsan}"
2767 add_cflags -fsanitize=thread -pie
2768 add_ldflags -fsanitize=thread -pie
2769 case "$toolchain" in
2770 gcc-tsan)
2771 add_cflags -fPIC
2772 add_ldflags -fPIC
2773 ;;
2774 esac
2775 ;;
2776 *-usan)
2777 cc_default="${toolchain%-usan}"
2778 add_cflags -fsanitize=undefined
2779 add_ldflags -fsanitize=undefined
2780 case "$toolchain" in
2781 clang-usan)
2782 add_cflags -O1
2783 ;;
2784 esac
2785 ;;
2786 valgrind-*)
2787 target_exec_default="valgrind"
2788 case "$toolchain" in
2789 valgrind-massif)
2790 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2791 ;;
2792 valgrind-memcheck)
2793 target_exec_args="--track-origins=yes --leak-check=full"
2794 ;;
2795 esac
2796 ;;
2797 msvc)
2798 # Check whether the current MSVC version needs the C99 converter.
2799 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2800 # support enough of C99 to build libav. Default to the new
2801 # behaviour if the regexp was unable to match anything, since this
2802 # successfully parses the version number of existing supported
2803 # versions that require the converter (MSVC 2010 and 2012).
2804 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2805 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2806 cc_default="cl"
2807 else
2808 cc_default="c99wrap cl"
2809 fi
2810 ld_default="$source_path/compat/windows/mslink"
2811 nm_default="dumpbin -symbols"
2812 ar_default="lib"
2813 case "$arch" in
2814 arm*)
2815 as_default="armasm"
2816 ;;
2817 esac
2818 target_os_default="win32"
2819 # Use a relative path for TMPDIR. This makes sure all the
2820 # ffconf temp files are written with a relative path, avoiding
2821 # issues with msys/win32 path conversion for MSVC parameters
2822 # such as -Fo<file> or -out:<file>.
2823 TMPDIR=.
2824 ;;
2825 icl)
2826 cc_default="icl"
2827 ld_default="xilink"
2828 nm_default="dumpbin -symbols"
2829 ar_default="xilib"
2830 target_os_default="win32"
2831 TMPDIR=.
2832 ;;
2833 gcov)
2834 add_cflags -fprofile-arcs -ftest-coverage
2835 add_ldflags -fprofile-arcs -ftest-coverage
2836 ;;
2837 llvm-cov)
2838 add_cflags -fprofile-arcs -ftest-coverage
2839 add_ldflags --coverage
2840 ;;
2841 hardened)
2842 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2843 add_cflags -fno-strict-overflow -fstack-protector-all
2844 add_ldflags -Wl,-z,relro -Wl,-z,now
2845 ;;
2846 ?*)
2847 die "Unknown toolchain $toolchain"
2848 ;;
2849 esac
2850
2851 test -n "$cross_prefix" && enable cross_compile
2852
2853 if enabled cross_compile; then
2854 test -n "$arch" && test -n "$target_os" ||
2855 die "Must specify target arch and OS when cross-compiling"
2856 fi
2857
2858 ar_default="${cross_prefix}${ar_default}"
2859 cc_default="${cross_prefix}${cc_default}"
2860 occ_default="${cross_prefix}${occ_default}"
2861 nm_default="${cross_prefix}${nm_default}"
2862 pkg_config_default="${cross_prefix}${pkg_config_default}"
2863 ranlib="${cross_prefix}${ranlib}"
2864 strip="${cross_prefix}${strip}"
2865
2866 sysinclude_default="${sysroot}/usr/include"
2867
2868 set_default arch cc pkg_config sysinclude target_exec target_os
2869 enabled cross_compile || host_cc_default=$cc
2870 set_default host_cc
2871
2872 if ! $pkg_config --version >/dev/null 2>&1; then
2873 warn "$pkg_config not found, library detection may fail."
2874 pkg_config=false
2875 fi
2876
2877 exesuf() {
2878 case $1 in
2879 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2880 esac
2881 }
2882
2883 EXESUF=$(exesuf $target_os)
2884 HOSTEXESUF=$(exesuf $host_os)
2885
2886 # set temporary file name
2887 : ${TMPDIR:=$TEMPDIR}
2888 : ${TMPDIR:=$TMP}
2889 : ${TMPDIR:=/tmp}
2890
2891 if ! check_cmd mktemp -u XXXXXX; then
2892 # simple replacement for missing mktemp
2893 # NOT SAFE FOR GENERAL USE
2894 mktemp(){
2895 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2896 }
2897 fi
2898
2899 tmpfile(){
2900 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2901 (set -C; exec > $tmp) 2>/dev/null ||
2902 die "Unable to create temporary file in $TMPDIR."
2903 append TMPFILES $tmp
2904 eval $1=$tmp
2905 }
2906
2907 trap 'rm -f -- $TMPFILES' EXIT
2908
2909 tmpfile TMPASM .asm
2910 tmpfile TMPC .c
2911 tmpfile TMPE $EXESUF
2912 tmpfile TMPH .h
2913 tmpfile TMPO .o
2914 tmpfile TMPS .S
2915 tmpfile TMPSH .sh
2916 tmpfile TMPV .ver
2917
2918 unset -f mktemp
2919
2920 chmod +x $TMPE
2921
2922 # make sure we can execute files in $TMPDIR
2923 cat > $TMPSH 2>> $logfile <<EOF
2924 #! /bin/sh
2925 EOF
2926 chmod +x $TMPSH >> $logfile 2>&1
2927 if ! $TMPSH >> $logfile 2>&1; then
2928 cat <<EOF
2929 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2930 variable to another directory and make sure that it is not mounted noexec.
2931 EOF
2932 die "Sanity test failed."
2933 fi
2934
2935 armasm_flags(){
2936 for flag; do
2937 case $flag in
2938 # Filter out MSVC cl.exe options from cflags that shouldn't
2939 # be passed to gas-preprocessor
2940 -M[TD]*) ;;
2941 *) echo $flag ;;
2942 esac
2943 done
2944 }
2945
2946 ccc_flags(){
2947 for flag; do
2948 case $flag in
2949 -std=c99) echo -c99 ;;
2950 -mcpu=*) echo -arch ${flag#*=} ;;
2951 -mieee) echo -ieee ;;
2952 -O*|-fast) echo $flag ;;
2953 -fno-math-errno) echo -assume nomath_errno ;;
2954 -g) echo -g3 ;;
2955 -Wall) echo -msg_enable level2 ;;
2956 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2957 -Wl,*) echo $flag ;;
2958 -f*|-W*) ;;
2959 *) echo $flag ;;
2960 esac
2961 done
2962 }
2963
2964 cparser_flags(){
2965 for flag; do
2966 case $flag in
2967 -Wno-switch) echo -Wno-switch-enum ;;
2968 -Wno-format-zero-length) ;;
2969 -Wdisabled-optimization) ;;
2970 -Wno-pointer-sign) echo -Wno-other ;;
2971 *) echo $flag ;;
2972 esac
2973 done
2974 }
2975
2976 msvc_common_flags(){
2977 for flag; do
2978 case $flag in
2979 # In addition to specifying certain flags under the compiler
2980 # specific filters, they must be specified here as well or else the
2981 # generic catch all at the bottom will print the original flag.
2982 -Wall) ;;
2983 -std=c99) ;;
2984 # Common flags
2985 -fomit-frame-pointer) ;;
2986 -g) echo -Z7 ;;
2987 -fno-math-errno) ;;
2988 -fno-common) ;;
2989 -fno-signed-zeros) ;;
2990 -fPIC) ;;
2991 -mthumb) ;;
2992 -march=*) ;;
2993 -lz) echo zlib.lib ;;
2994 -lavifil32) echo vfw32.lib ;;
2995 -lavicap32) echo vfw32.lib user32.lib ;;
2996 -lx264) echo libx264.lib ;;
2997 -l*) echo ${flag#-l}.lib ;;
2998 -L*) echo -libpath:${flag#-L} ;;
2999 *) echo $flag ;;
3000 esac
3001 done
3002 }
3003
3004 msvc_flags(){
3005 msvc_common_flags "$@"
3006 for flag; do
3007 case $flag in
3008 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3009 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3010 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3011 -wd4273 -wd4554 -wd4701 ;;
3012 esac
3013 done
3014 }
3015
3016 icl_flags(){
3017 msvc_common_flags "$@"
3018 for flag; do
3019 case $flag in
3020 # Despite what Intel's documentation says -Wall, which is supported
3021 # on Windows, does enable remarks so disable them here.
3022 -Wall) echo $flag -Qdiag-disable:remark ;;
3023 -std=c99) echo -Qstd=c99 ;;
3024 esac
3025 done
3026 }
3027
3028 pgi_flags(){
3029 for flag; do
3030 case $flag in
3031 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3032 -fomit-frame-pointer) echo -Mnoframe ;;
3033 -g) echo -gopt ;;
3034 *) echo $flag ;;
3035 esac
3036 done
3037 }
3038
3039 suncc_flags(){
3040 for flag; do
3041 case $flag in
3042 -march=*|-mcpu=*)
3043 case "${flag#*=}" in
3044 native) echo -xtarget=native ;;
3045 v9|niagara) echo -xarch=sparc ;;
3046 ultrasparc) echo -xarch=sparcvis ;;
3047 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3048 i586|pentium) echo -xchip=pentium ;;
3049 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3050 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3051 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3052 pentium4*) echo -xtarget=pentium4 ;;
3053 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3054 *-sse3) echo -xarch=sse3 ;;
3055 core2) echo -xarch=ssse3 -xchip=core2 ;;
3056 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3057 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3058 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3059 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3060 k8|opteron|athlon64|athlon-fx)
3061 echo -xarch=sse2a ;;
3062 athlon*) echo -xarch=pentium_proa ;;
3063 esac
3064 ;;
3065 -std=c99) echo -xc99 ;;
3066 -fomit-frame-pointer) echo -xregs=frameptr ;;
3067 -fPIC) echo -KPIC -xcode=pic32 ;;
3068 -W*,*) echo $flag ;;
3069 -f*-*|-W*|-mimpure-text) ;;
3070 -shared) echo -G ;;
3071 *) echo $flag ;;
3072 esac
3073 done
3074 }
3075
3076 tms470_flags(){
3077 for flag; do
3078 case $flag in
3079 -march=*|-mcpu=*)
3080 case "${flag#*=}" in
3081 armv7-a|cortex-a*) echo -mv=7a8 ;;
3082 armv7-r|cortex-r*) echo -mv=7r4 ;;
3083 armv7-m|cortex-m*) echo -mv=7m3 ;;
3084 armv6*|arm11*) echo -mv=6 ;;
3085 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3086 echo -mv=5e ;;
3087 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3088 esac
3089 ;;
3090 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3091 -mfpu=vfp) echo --float_support=vfpv2 ;;
3092 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3093 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3094 -msoft-float) echo --float_support=vfplib ;;
3095 -O[0-3]|-mf=*) echo $flag ;;
3096 -g) echo -g -mn ;;
3097 -pds=*) echo $flag ;;
3098 -D*|-I*) echo $flag ;;
3099 --gcc|--abi=*) echo $flag ;;
3100 -me) echo $flag ;;
3101 esac
3102 done
3103 }
3104
3105 probe_cc(){
3106 pfx=$1
3107 _cc=$2
3108
3109 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3110 unset _ld_o _ldflags _ld_lib _ld_path
3111 unset _depflags _DEPCMD _DEPFLAGS
3112 _flags_filter=echo
3113
3114 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3115 _type=llvm_gcc
3116 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3117 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3118 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3119 _cflags_speed='-O3'
3120 _cflags_size='-Os'
3121 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3122 _type=gcc
3123 gcc_version=$($_cc --version | head -n1)
3124 gcc_basever=$($_cc -dumpversion)
3125 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3126 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3127 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3128 if ! $_cc -dumpversion | grep -q '^2\.'; then
3129 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3130 fi
3131 _cflags_speed='-O3'
3132 _cflags_size='-Os'
3133 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3134 _type=icc
3135 _ident=$($_cc --version | head -n1)
3136 _depflags='-MMD'
3137 _cflags_speed='-O3'
3138 _cflags_size='-Os'
3139 _cflags_noopt='-O1'
3140 elif $_cc -v 2>&1 | grep -q xlc; then
3141 _type=xlc
3142 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3143 _cflags_speed='-O5'
3144 _cflags_size='-O5 -qcompact'
3145 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3146 _type=ccc
3147 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3148 _DEPFLAGS='-M'
3149 _cflags_speed='-fast'
3150 _cflags_size='-O1'
3151 _flags_filter=ccc_flags
3152 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3153 test -d "$sysroot" || die "No valid sysroot specified."
3154 _type=armcc
3155 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3156 armcc_conf="$PWD/armcc.conf"
3157 $_cc --arm_linux_configure \
3158 --arm_linux_config_file="$armcc_conf" \
3159 --configure_sysroot="$sysroot" \
3160 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3161 die "Error creating armcc configuration file."
3162 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3163 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3164 as_default="${cross_prefix}gcc"
3165 _depflags='-MMD'
3166 _cflags_speed='-O3'
3167 _cflags_size='-Os'
3168 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3169 _type=tms470
3170 _ident=$($_cc -version | head -n1 | tr -s ' ')
3171 _flags='--gcc --abi=eabi -me'
3172 _cc_e='-ppl -fe=$@'
3173 _cc_o='-fe=$@'
3174 _depflags='-ppa -ppd=$(@:.o=.d)'
3175 _cflags_speed='-O3 -mf=5'
3176 _cflags_size='-O3 -mf=2'
3177 _flags_filter=tms470_flags
3178 elif $_cc -v 2>&1 | grep -q clang; then
3179 _type=clang
3180 _ident=$($_cc --version 2>/dev/null | head -n1)
3181 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3182 _cflags_speed='-O3'
3183 _cflags_size='-Os'
3184 elif $_cc -V 2>&1 | grep -q Sun; then
3185 _type=suncc
3186 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3187 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3188 _DEPFLAGS='-xM1 -xc99'
3189 _ldflags='-std=c99'
3190 _cflags_speed='-O5'
3191 _cflags_size='-O5 -xspace'
3192 _flags_filter=suncc_flags
3193 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3194 _type=pathscale
3195 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3196 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3197 _cflags_speed='-O2'
3198 _cflags_size='-Os'
3199 _flags_filter='filter_out -Wdisabled-optimization'
3200 elif $_cc -v 2>&1 | grep -q Open64; then
3201 _type=open64
3202 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3203 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3204 _cflags_speed='-O2'
3205 _cflags_size='-Os'
3206 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3207 elif $_cc -V 2>&1 | grep -q Portland; then
3208 _type=pgi
3209 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3210 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3211 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3212 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3213 _cflags_noopt="-O1"
3214 _flags_filter=pgi_flags
3215 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3216 _type=armasm
3217 _ident=$($_cc | head -n1)
3218 # 4509: "This form of conditional instruction is deprecated"
3219 _flags="-nologo -ignore 4509"
3220 _flags_filter=armasm_flags
3221 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3222 _type=msvc
3223 _ident=$($_cc 2>&1 | head -n1)
3224 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3225 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3226 _cflags_speed="-O2"
3227 _cflags_size="-O1"
3228 if $_cc -nologo- 2>&1 | grep -q Linker; then
3229 _ld_o='-out:$@'
3230 else
3231 _ld_o='-Fe$@'
3232 fi
3233 _cc_o='-Fo$@'
3234 _cc_e='-P -Fi$@'
3235 _flags_filter=msvc_flags
3236 _ld_lib='lib%.a'
3237 _ld_path='-libpath:'
3238 _flags='-nologo'
3239 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3240 elif $_cc 2>&1 | grep -q Intel; then
3241 _type=icl
3242 _ident=$($_cc 2>&1 | head -n1)
3243 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3244 # Not only is O3 broken on 13.x+ but it is slower on all previous
3245 # versions (tested) as well.
3246 _cflags_speed="-O2"
3247 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3248 if $_cc 2>&1 | grep -q Linker; then
3249 _ld_o='-out:$@'
3250 else
3251 _ld_o='-Fe$@'
3252 fi
3253 _cc_o='-Fo$@'
3254 _cc_e='-P'
3255 _flags_filter=icl_flags
3256 _ld_lib='lib%.a'
3257 _ld_path='-libpath:'
3258 # -Qdiag-error to make icl error when seeing certain unknown arguments
3259 _flags='-nologo -Qdiag-error:4044,10157'
3260 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3261 # with MSVC which enables it by default.
3262 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3263 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3264 _type=cparser
3265 _ident=$($_cc --version | head -n1)
3266 _depflags='-MMD'
3267 _cflags_speed='-O4'
3268 _cflags_size='-O2'
3269 _flags_filter=cparser_flags
3270 fi
3271
3272 eval ${pfx}_type=\$_type
3273 eval ${pfx}_ident=\$_ident
3274 }
3275
3276 set_ccvars(){
3277 eval ${1}_C=\${_cc_c-\${${1}_C}}
3278 eval ${1}_E=\${_cc_e-\${${1}_E}}
3279 eval ${1}_O=\${_cc_o-\${${1}_O}}
3280
3281 if [ -n "$_depflags" ]; then
3282 eval ${1}_DEPFLAGS=\$_depflags
3283 else
3284 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3285 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3286 eval DEP${1}FLAGS=\$_flags
3287 fi
3288 }
3289
3290 probe_cc cc "$cc"
3291 cflags_filter=$_flags_filter
3292 cflags_speed=$_cflags_speed
3293 cflags_size=$_cflags_size
3294 cflags_noopt=$_cflags_noopt
3295 add_cflags $_flags $_cflags
3296 cc_ldflags=$_ldflags
3297 set_ccvars CC
3298
3299 probe_cc hostcc "$host_cc"
3300 host_cflags_filter=$_flags_filter
3301 add_host_cflags $_flags $_cflags
3302 set_ccvars HOSTCC
3303
3304 test -n "$cc_type" && enable $cc_type ||
3305 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3306
3307 : ${as_default:=$cc}
3308 : ${objcc_default:=$cc}
3309 : ${dep_cc_default:=$cc}
3310 : ${ld_default:=$cc}
3311 : ${host_ld_default:=$host_cc}
3312 set_default ar as objcc dep_cc ld host_ld
3313
3314 probe_cc as "$as"
3315 asflags_filter=$_flags_filter
3316 add_asflags $_flags $_cflags
3317 set_ccvars AS
3318
3319 probe_cc objcc "$objcc"
3320 objcflags_filter=$_flags_filter
3321 add_objcflags $_flags $_cflags
3322 set_ccvars OBJC
3323
3324 probe_cc ld "$ld"
3325 ldflags_filter=$_flags_filter
3326 add_ldflags $_flags $_ldflags
3327 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3328 LD_O=${_ld_o-$LD_O}
3329 LD_LIB=${_ld_lib-$LD_LIB}
3330 LD_PATH=${_ld_path-$LD_PATH}
3331
3332 probe_cc hostld "$host_ld"
3333 host_ldflags_filter=$_flags_filter
3334 add_host_ldflags $_flags $_ldflags
3335 HOSTLD_O=${_ld_o-$HOSTLD_O}
3336
3337 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3338 probe_cc depcc "$dep_cc"
3339 CCDEP=${_DEPCMD:-$DEPCMD}
3340 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3341 DEPCCFLAGS=$_flags
3342 fi
3343
3344 if $ar 2>&1 | grep -q Microsoft; then
3345 arflags="-nologo"
3346 ar_o='-out:$@'
3347 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3348 arflags="rq"
3349 ar_o='$@'
3350 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3351 arflags='-Xany -r -c'
3352 ar_o='$@'
3353 else
3354 arflags="rc"
3355 ar_o='$@'
3356 fi
3357
3358 add_cflags $extra_cflags
3359 add_objcflags $extra_objcflags
3360 add_asflags $extra_cflags
3361
3362 if test -n "$sysroot"; then
3363 case "$cc_type" in
3364 gcc|llvm_gcc|clang)
3365 add_cppflags --sysroot="$sysroot"
3366 add_ldflags --sysroot="$sysroot"
3367 ;;
3368 tms470)
3369 add_cppflags -I"$sysinclude"
3370 add_ldflags --sysroot="$sysroot"
3371 ;;
3372 esac
3373 fi
3374
3375 if test "$cpu" = host; then
3376 enabled cross_compile &&
3377 die "--cpu=host makes no sense when cross-compiling."
3378
3379 case "$cc_type" in
3380 gcc|llvm_gcc)
3381 check_native(){
3382 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3383 sed -n "/cc1.*$1=/{
3384 s/.*$1=\\([^ ]*\\).*/\\1/
3385 p
3386 q
3387 }" $TMPE
3388 }
3389 cpu=$(check_native -march || check_native -mcpu)
3390 ;;
3391 esac
3392
3393 test "${cpu:-host}" = host &&
3394 die "--cpu=host not supported with compiler $cc"
3395 fi
3396
3397 # Deal with common $arch aliases
3398 case "$arch" in
3399 aarch64|arm64)
3400 arch="aarch64"
3401 ;;
3402 arm*)
3403 arch="arm"
3404 ;;
3405 mips*|IP*)
3406 case "$arch" in
3407 *el)
3408 add_cppflags -EL
3409 add_ldflags -EL
3410 ;;
3411 *eb)
3412 add_cppflags -EB
3413 add_ldflags -EB
3414 ;;
3415 esac
3416 arch="mips"
3417 ;;
3418 parisc*|hppa*)
3419 arch="parisc"
3420 ;;
3421 "Power Macintosh"|ppc*|powerpc*)
3422 arch="ppc"
3423 ;;
3424 s390|s390x)
3425 arch="s390"
3426 ;;
3427 sh4|sh)
3428 arch="sh4"
3429 ;;
3430 sun4u|sparc*)
3431 arch="sparc"
3432 ;;
3433 tilegx|tile-gx)
3434 arch="tilegx"
3435 ;;
3436 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3437 arch="x86"
3438 ;;
3439 esac
3440
3441 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3442 enable $arch
3443
3444 # Add processor-specific flags
3445 if enabled aarch64; then
3446
3447 case $cpu in
3448 armv*)
3449 cpuflags="-march=$cpu"
3450 ;;
3451 *)
3452 cpuflags="-mcpu=$cpu"
3453 ;;
3454 esac
3455
3456 elif enabled alpha; then
3457
3458 cpuflags="-mcpu=$cpu"
3459
3460 elif enabled arm; then
3461
3462 check_arm_arch() {
3463 check_cpp_condition stddef.h \
3464 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3465 $cpuflags
3466 }
3467
3468 probe_arm_arch() {
3469 if check_arm_arch 4; then echo armv4
3470 elif check_arm_arch 4T; then echo armv4t
3471 elif check_arm_arch 5; then echo armv5
3472 elif check_arm_arch 5E; then echo armv5e
3473 elif check_arm_arch 5T; then echo armv5t
3474 elif check_arm_arch 5TE; then echo armv5te
3475 elif check_arm_arch 5TEJ; then echo armv5te
3476 elif check_arm_arch 6; then echo armv6
3477 elif check_arm_arch 6J; then echo armv6j
3478 elif check_arm_arch 6K; then echo armv6k
3479 elif check_arm_arch 6Z; then echo armv6z
3480 elif check_arm_arch 6ZK; then echo armv6zk
3481 elif check_arm_arch 6T2; then echo armv6t2
3482 elif check_arm_arch 7; then echo armv7
3483 elif check_arm_arch 7A 7_A; then echo armv7-a
3484 elif check_arm_arch 7S; then echo armv7-a
3485 elif check_arm_arch 7R 7_R; then echo armv7-r
3486 elif check_arm_arch 7M 7_M; then echo armv7-m
3487 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3488 elif check_arm_arch 8A 8_A; then echo armv8-a
3489 fi
3490 }
3491
3492 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3493
3494 case $cpu in
3495 armv*)
3496 cpuflags="-march=$cpu"
3497 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3498 ;;
3499 *)
3500 cpuflags="-mcpu=$cpu"
3501 case $cpu in
3502 cortex-a*) subarch=armv7a ;;
3503 cortex-r*) subarch=armv7r ;;
3504 cortex-m*) enable thumb; subarch=armv7m ;;
3505 arm11*) subarch=armv6 ;;
3506 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3507 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3508 *) subarch=$(probe_arm_arch) ;;
3509 esac
3510 ;;
3511 esac
3512
3513 case "$subarch" in
3514 armv5t*) enable fast_clz ;;
3515 armv[6-8]*) enable fast_clz fast_unaligned ;;
3516 esac
3517
3518 elif enabled avr32; then
3519
3520 case $cpu in
3521 ap7[02]0[0-2])
3522 subarch="avr32_ap"
3523 cpuflags="-mpart=$cpu"
3524 ;;
3525 ap)
3526 subarch="avr32_ap"
3527 cpuflags="-march=$cpu"
3528 ;;
3529 uc3[ab]*)
3530 subarch="avr32_uc"
3531 cpuflags="-mcpu=$cpu"
3532 ;;
3533 uc)
3534 subarch="avr32_uc"
3535 cpuflags="-march=$cpu"
3536 ;;
3537 esac
3538
3539 elif enabled bfin; then
3540
3541 cpuflags="-mcpu=$cpu"
3542
3543 elif enabled mips; then
3544
3545 cpuflags="-march=$cpu"
3546
3547 elif enabled ppc; then
3548
3549 disable ldbrx
3550
3551 case $(tolower $cpu) in
3552 601|ppc601|powerpc601)
3553 cpuflags="-mcpu=601"
3554 disable altivec
3555 ;;
3556 603*|ppc603*|powerpc603*)
3557 cpuflags="-mcpu=603"
3558 disable altivec
3559 ;;
3560 604*|ppc604*|powerpc604*)
3561 cpuflags="-mcpu=604"
3562 disable altivec
3563 ;;
3564 g3|75*|ppc75*|powerpc75*)
3565 cpuflags="-mcpu=750"
3566 disable altivec
3567 ;;
3568 g4|745*|ppc745*|powerpc745*)
3569 cpuflags="-mcpu=7450"
3570 disable vsx
3571 ;;
3572 74*|ppc74*|powerpc74*)
3573 cpuflags="-mcpu=7400"
3574 disable vsx
3575 ;;
3576 g5|970|ppc970|powerpc970)
3577 cpuflags="-mcpu=970"
3578 disable vsx
3579 ;;
3580 power[3-6]*)
3581 cpuflags="-mcpu=$cpu"
3582 disable vsx
3583 ;;
3584 power[7-8]*)
3585 cpuflags="-mcpu=$cpu"
3586 enable ldbrx
3587 ;;
3588 cell)
3589 cpuflags="-mcpu=cell"
3590 enable ldbrx
3591 disable vsx
3592 ;;
3593 e500mc)
3594 cpuflags="-mcpu=e500mc"
3595 disable altivec
3596 ;;
3597 e500v2)
3598 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3599 disable altivec
3600 disable dcbzl
3601 ;;
3602 e500)
3603 cpuflags="-mcpu=8540 -mhard-float"
3604 disable altivec
3605 disable dcbzl
3606 ;;
3607 esac
3608
3609 elif enabled sparc; then
3610
3611 case $cpu in
3612 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3613 cpuflags="-mcpu=$cpu"
3614 ;;
3615 ultrasparc*|niagara[234])
3616 cpuflags="-mcpu=$cpu"
3617 ;;
3618 esac
3619
3620 elif enabled x86; then
3621
3622 case $cpu in
3623 i[345]86|pentium)
3624 cpuflags="-march=$cpu"
3625 disable i686
3626 disable mmx
3627 ;;
3628 # targets that do NOT support nopl and conditional mov (cmov)
3629 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3630 cpuflags="-march=$cpu"
3631 disable i686
3632 ;;
3633 # targets that do support nopl and conditional mov (cmov)
3634 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3635 cpuflags="-march=$cpu"
3636 enable i686
3637 enable fast_cmov
3638 ;;
3639 # targets that do support conditional mov but on which it's slow
3640 pentium4|pentium4m|prescott|nocona)
3641 cpuflags="-march=$cpu"
3642 enable i686
3643 disable fast_cmov
3644 ;;
3645 esac
3646
3647 fi
3648
3649 if [ "$cpu" != generic ]; then
3650 add_cflags $cpuflags
3651 add_asflags $cpuflags
3652 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3653 fi
3654
3655 # compiler sanity check
3656 check_exec <<EOF
3657 int main(void){ return 0; }
3658 EOF
3659 if test "$?" != 0; then
3660 echo "$cc is unable to create an executable file."
3661 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3662 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3663 echo "Only do this if you know what cross compiling means."
3664 fi
3665 die "C compiler test failed."
3666 fi
3667
3668 add_cppflags -D_ISOC99_SOURCE
3669 check_cflags -std=c99
3670 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3671 #include <stdlib.h>
3672 EOF
3673 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3674 #include <stdlib.h>
3675 EOF
3676
3677 add_host_cppflags -D_ISOC99_SOURCE
3678 check_host_cflags -std=c99
3679 check_host_cflags -Wall
3680 check_host_cflags -O3
3681
3682 check_64bit(){
3683 arch32=$1
3684 arch64=$2
3685 expr=$3
3686 check_code cc "" "int test[2*($expr) - 1]" &&
3687 subarch=$arch64 || subarch=$arch32
3688 }
3689
3690 case "$arch" in
3691 aarch64|alpha|ia64)
3692 spic=$shared
3693 ;;
3694 mips)
3695 check_64bit mips mips64 '_MIPS_SIM > 1'
3696 spic=$shared
3697 ;;
3698 parisc)
3699 check_64bit parisc parisc64 'sizeof(void *) > 4'
3700 spic=$shared
3701 ;;
3702 ppc)
3703 check_64bit ppc ppc64 'sizeof(void *) > 4'
3704 spic=$shared
3705 ;;
3706 s390)
3707 check_64bit s390 s390x 'sizeof(void *) > 4'
3708 spic=$shared
3709 ;;
3710 sparc)
3711 check_64bit sparc sparc64 'sizeof(void *) > 4'
3712 spic=$shared
3713 ;;
3714 x86)
3715 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3716 if test "$subarch" = "x86_64"; then
3717 spic=$shared
3718 fi
3719 ;;
3720 esac
3721
3722 enable $subarch
3723 enabled spic && enable_weak pic
3724
3725 # OS specific
3726 case $target_os in
3727 aix)
3728 SHFLAGS=-shared
3729 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3730 enabled shared && add_ldflags -Wl,-brtl
3731 ;;
3732 android)
3733 disable symver
3734 enable section_data_rel_ro
3735 SLIB_INSTALL_NAME='$(SLIBNAME)'
3736 SLIB_INSTALL_LINKS=
3737 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3738 ;;
3739 haiku)
3740 prefix_default="/boot/common"
3741 network_extralibs="-lnetwork"
3742 host_libs=
3743 ;;
3744 sunos)
3745 SHFLAGS='-shared -Wl,-h,$$(@F)'
3746 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3747 network_extralibs="-lsocket -lnsl"
3748 # When using suncc to build, the Solaris linker will mark
3749 # an executable with each instruction set encountered by
3750 # the Solaris assembler. As our libraries contain their own
3751 # guards for processor-specific code, instead suppress
3752 # generation of the HWCAPS ELF section on Solaris x86 only.
3753 enabled_all suncc x86 &&
3754 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3755 add_ldflags -Wl,-M,mapfile
3756 nm_default='nm -P -g'
3757 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3758 ;;
3759 netbsd)
3760 disable symver
3761 oss_indev_extralibs="-lossaudio"
3762 oss_outdev_extralibs="-lossaudio"
3763 ;;
3764 openbsd|bitrig)
3765 disable symver
3766 SHFLAGS='-shared'
3767 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3768 SLIB_INSTALL_LINKS=
3769 oss_indev_extralibs="-lossaudio"
3770 oss_outdev_extralibs="-lossaudio"
3771 ;;
3772 dragonfly)
3773 disable symver
3774 ;;
3775 freebsd)
3776 ;;
3777 bsd/os)
3778 add_extralibs -lpoll -lgnugetopt
3779 ;;
3780 darwin)
3781 enabled ppc && add_asflags -force_cpusubtype_ALL
3782 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3783 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3784 add_ldflags -Wl,-dynamic,-search_paths_first
3785 SLIBSUF=".dylib"
3786 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3787 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3788 objformat="macho"
3789 enabled x86_64 && objformat="macho64"
3790 enabled_any pic shared ||
3791 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3792 check_header dispatch/dispatch.h &&
3793 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3794 ;;
3795 msys*)
3796 die "Native MSYS builds are discouraged, please use the MINGW environment."
3797 ;;
3798 mingw32*|mingw64*)
3799 if test $target_os = "mingw32ce"; then
3800 disable network
3801 else
3802 target_os=mingw32
3803 fi
3804 LIBTARGET=i386
3805 if enabled x86_64; then
3806 LIBTARGET="i386:x86-64"
3807 elif enabled arm; then
3808 LIBTARGET=arm-wince
3809 fi
3810 check_ldflags -Wl,--nxcompat
3811 check_ldflags -Wl,--dynamicbase
3812 shlibdir_default="$bindir_default"
3813 SLIBPREF=""
3814 SLIBSUF=".dll"
3815 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3816 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3817 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3818 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3819 SLIB_INSTALL_LINKS=
3820 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3821 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3822 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3823 objformat="win32"
3824 dlltool="${cross_prefix}dlltool"
3825 ranlib=:
3826 enable dos_paths
3827 ;;
3828 win32|win64)
3829 disable symver
3830 if enabled shared; then
3831 # Link to the import library instead of the normal static library
3832 # for shared libs.
3833 LD_LIB='%.lib'
3834 # Cannot build both shared and static libs with MSVC or icl.
3835 disable static
3836 fi
3837 shlibdir_default="$bindir_default"
3838 SLIBPREF=""
3839 SLIBSUF=".dll"
3840 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3841 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3842 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3843 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3844 SLIB_INSTALL_LINKS=
3845 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3846 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3847 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3848 objformat="win32"
3849 ranlib=:
3850 enable dos_paths
3851 ;;
3852 cygwin*)
3853 target_os=cygwin
3854 shlibdir_default="$bindir_default"
3855 SLIBPREF="cyg"
3856 SLIBSUF=".dll"
3857 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3858 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3859 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3860 SLIB_INSTALL_LINKS=
3861 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3862 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3863 objformat="win32"
3864 enable dos_paths
3865 ;;
3866 *-dos|freedos|opendos)
3867 network_extralibs="-lsocket"
3868 objformat="coff"
3869 enable dos_paths
3870 add_cppflags -U__STRICT_ANSI__
3871 ;;
3872 linux)
3873 enable dv1394
3874 enable section_data_rel_ro
3875 ;;
3876 irix*)
3877 target_os=irix
3878 ranlib="echo ignoring ranlib"
3879 ;;
3880 os/2*)
3881 ln_s="cp -f"
3882 objformat="aout"
3883 add_cppflags -D_GNU_SOURCE
3884 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3885 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3886 LIBSUF="_s.a"
3887 SLIBPREF=""
3888 SLIBSUF=".dll"
3889 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3890 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3891 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3892 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3893 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3894 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3895 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3896 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3897 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3898 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3899 enable dos_paths
3900 ;;
3901 gnu/kfreebsd)
3902 add_cppflags -D_BSD_SOURCE
3903 ;;
3904 gnu)
3905 ;;
3906 qnx)
3907 add_cppflags -D_QNX_SOURCE
3908 network_extralibs="-lsocket"
3909 ;;
3910 symbian)
3911 SLIBSUF=".dll"
3912 enable dos_paths
3913 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3914 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3915 add_ldflags -Wl,--target1-abs,--no-undefined \
3916 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3917 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3918 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3919 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3920 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3921 ;;
3922 osf1)
3923 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3924 ;;
3925 minix)
3926 ;;
3927 plan9)
3928 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3929 -D_REENTRANT_SOURCE \
3930 -D_RESEARCH_SOURCE \
3931 -DFD_SETSIZE=96 \
3932 -DHAVE_SOCK_OPTS
3933 add_compat strtod.o strtod=avpriv_strtod
3934 network_extralibs='-lbsd'
3935 exeobjs=compat/plan9/main.o
3936 cp_f='cp'
3937 ;;
3938 none)
3939 ;;
3940 *)
3941 die "Unknown OS '$target_os'."
3942 ;;
3943 esac
3944
3945 # determine libc flavour
3946
3947 probe_libc(){
3948 pfx=$1
3949 pfx_no_=${pfx%_}
3950 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3951 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3952 eval ${pfx}libc_type=uclibc
3953 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3954 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3955 eval ${pfx}libc_type=glibc
3956 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3957 # MinGW headers can be installed on Cygwin, so check for newlib first.
3958 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3959 eval ${pfx}libc_type=newlib
3960 add_${pfx}cppflags -U__STRICT_ANSI__
3961 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3962 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3963 eval ${pfx}libc_type=mingw64
3964 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3965 eval test \$${pfx_no_}cc_type = "gcc" &&
3966 add_${pfx}cppflags -D__printf__=__gnu_printf__
3967 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3968 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3969 eval ${pfx}libc_type=mingw32
3970 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3971 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3972 die "ERROR: MinGW32 runtime version must be >= 3.15."
3973 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3974 eval test \$${pfx_no_}cc_type = "gcc" &&
3975 add_${pfx}cppflags -D__printf__=__gnu_printf__
3976 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3977 eval ${pfx}libc_type=msvcrt
3978 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3979 if [ "$pfx" = host_ ]; then
3980 add_host_cppflags -Dsnprintf=_snprintf
3981 else
3982 add_compat strtod.o strtod=avpriv_strtod
3983 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3984 _snprintf=avpriv_snprintf \
3985 vsnprintf=avpriv_vsnprintf
3986 fi
3987 fi
3988 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3989 # 0x601 by default unless something else is set by the user.
3990 # This can easily lead to us detecting functions only present
3991 # in such new versions and producing binaries requiring windows 7.0.
3992 # Therefore explicitly set the default to XP unless the user has
3993 # set something else on the command line.
3994 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3995 # family. For these cases, configure is free to use any functions
3996 # found in the SDK headers by default. (Alternatively, we could force
3997 # _WIN32_WINNT to 0x0602 in that case.)
3998 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3999 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4000 #ifdef WINAPI_FAMILY
4001 #include <winapifamily.h>
4002 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4003 #error not desktop
4004 #endif
4005 #endif
4006 EOF
4007 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4008 eval ${pfx}libc_type=klibc
4009 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4010 eval ${pfx}libc_type=bionic
4011 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4012 eval ${pfx}libc_type=solaris
4013 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4014 else
4015 eval ${pfx}libc_type=default
4016 add_${pfx}cppflags -D_DEFAULT_SOURCE
4017 fi
4018 }
4019
4020 probe_libc
4021 test -n "$libc_type" && enable libc_$libc_type
4022 probe_libc host_
4023 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4024
4025 case $libc_type in
4026 bionic)
4027 add_compat strtod.o strtod=avpriv_strtod
4028 ;;
4029 esac
4030
4031 # hacks for compiler/libc/os combinations
4032
4033 if enabled_all tms470 libc_glibc; then
4034 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4035 add_cppflags -D__USER_LABEL_PREFIX__=
4036 add_cppflags -D__builtin_memset=memset
4037 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4038 add_cflags -pds=48 # incompatible redefinition of macro
4039 fi
4040
4041 if enabled_all ccc libc_glibc; then
4042 add_ldflags -Wl,-z,now # calls to libots crash without this
4043 fi
4044
4045 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4046 add_cppflags '-I\$(SRC_PATH)/compat/float'
4047
4048 esc(){
4049 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4050 }
4051
4052 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4053
4054 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4055
4056 set_default $PATHS_LIST
4057 set_default nm
4058
4059 # we need to build at least one lib type
4060 if ! enabled_any static shared; then
4061 cat <<EOF
4062 At least one library type must be built.
4063 Specify --enable-static to build the static libraries or --enable-shared to
4064 build the shared libraries as well. To only build the shared libraries specify
4065 --disable-static in addition to --enable-shared.
4066 EOF
4067 exit 1
4068 fi
4069
4070 die_license_disabled() {
4071 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4072 }
4073
4074 die_license_disabled gpl libcdio
4075 die_license_disabled gpl libx264
4076 die_license_disabled gpl libx265
4077 die_license_disabled gpl libxavs
4078 die_license_disabled gpl libxvid
4079 die_license_disabled gpl x11grab
4080
4081 die_license_disabled nonfree cuda
4082 die_license_disabled nonfree libfaac
4083 die_license_disabled nonfree libfdk_aac
4084 die_license_disabled nonfree libnpp
4085 die_license_disabled nonfree nvenc
4086 die_license_disabled nonfree openssl
4087
4088 die_license_disabled version3 libopencore_amrnb
4089 die_license_disabled version3 libopencore_amrwb
4090 die_license_disabled version3 libvo_aacenc
4091 die_license_disabled version3 libvo_amrwbenc
4092
4093 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4094
4095 disabled optimizations || check_cflags -fomit-frame-pointer
4096
4097 enable_weak_pic() {
4098 disabled pic && return
4099 enable pic
4100 add_cppflags -DPIC
4101 case "$target_os" in
4102 mingw*|cygwin*)
4103 ;;
4104 *)
4105 add_cflags -fPIC
4106 ;;
4107 esac
4108 add_asflags -fPIC
4109 }
4110
4111 enabled pic && enable_weak_pic
4112
4113 check_cc <<EOF || die "Symbol mangling check failed."
4114 int ff_extern;
4115 EOF
4116 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4117 extern_prefix=${sym%%ff_extern*}
4118
4119 check_cc <<EOF && enable_weak inline_asm
4120 void foo(void) { __asm__ volatile ("" ::); }
4121 EOF
4122
4123 _restrict=
4124 for restrict_keyword in restrict __restrict__ __restrict; do
4125 check_cc <<EOF && _restrict=$restrict_keyword && break
4126 void foo(char * $restrict_keyword p);
4127 EOF
4128 done
4129
4130 check_cc <<EOF && enable pragma_deprecated
4131 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4132 EOF
4133
4134 check_cc <<EOF && enable attribute_packed
4135 struct { int x; } __attribute__((packed)) x;
4136 EOF
4137
4138 check_cc <<EOF && enable attribute_may_alias
4139 union { int x; } __attribute__((may_alias)) x;
4140 EOF
4141
4142 check_cc <<EOF || die "endian test failed"
4143 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4144 EOF
4145 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4146
4147 check_gas() {
4148 log "check_gas using '$as' as AS"
4149 # :vararg is used on aarch64, arm and ppc altivec
4150 check_as <<EOF || return 1
4151 .macro m n, y:vararg=0
4152 \n: .int \y
4153 .endm
4154 m x
4155 EOF
4156 # .altmacro is only used in arm asm
4157 ! enabled arm || check_as <<EOF || return 1
4158 .altmacro
4159 EOF
4160 enable gnu_as
4161 return 0
4162 }
4163
4164 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4165 nogas=:
4166 enabled_any arm aarch64 && nogas=die
4167 enabled_all ppc altivec && nogas=warn
4168 as_noop=-v
4169
4170 case $as_type in
4171 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4172 gcc) gaspp_as_type=gas ;;
4173 *) gaspp_as_type=$as_type ;;
4174 esac
4175
4176 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4177
4178 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4179 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4180
4181 if ! check_gas ; then
4182 as=${gas:=$as}
4183 check_gas || \
4184 $nogas "GNU assembler not found, install/update gas-preprocessor"
4185 fi
4186
4187 check_as <<EOF && enable as_func
4188 .func test
4189 .endfunc
4190 EOF
4191 fi
4192
4193 check_inline_asm inline_asm_labels '"1:\n"'
4194
4195 if enabled aarch64; then
4196 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4197 # internal assembler in clang 3.3 does not support this instruction
4198 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4199 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4200
4201 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4202
4203 elif enabled alpha; then
4204
4205 check_cflags -mieee
4206
4207 elif enabled arm; then
4208
4209 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4210 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4211 enabled thumb && check_cflags -mthumb || check_cflags -marm
4212
4213 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4214 enable vfp_args
4215 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4216 enable vfp_args
4217 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4218 case "${cross_prefix:-$cc}" in
4219 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4220 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4221 __asm__ (".eabi_attribute 28, 1");
4222 int main(void) { return 0; }
4223 EOF
4224 esac
4225 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4226 fi
4227
4228 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4229 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4230 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4231 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4232 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4233 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4234
4235 [ $target_os = linux ] || [ $target_os = android ] ||
4236 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4237 $ARCH_EXT_LIST_ARM
4238
4239 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4240
4241 check_as <<EOF && enable as_dn_directive
4242 ra .dn d0.i16
4243 .unreq ra
4244 EOF
4245
4246 # llvm's integrated assembler supports .object_arch from llvm 3.5
4247 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4248 .object_arch armv4
4249 EOF
4250
4251 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4252
4253 elif enabled mips; then
4254
4255 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4256
4257 # make sure that only an instruction set is enabled
4258 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4259
4260 if enabled mips64; then
4261 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4262 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4263 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4264 else
4265 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4266 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4267 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4268 fi
4269
4270 elif enabled parisc; then
4271
4272 if enabled gcc; then
4273 case $($cc -dumpversion) in
4274 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4275 esac
4276 fi
4277
4278 elif enabled ppc; then
4279
4280 enable local_aligned_8 local_aligned_16
4281
4282 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4283 check_inline_asm ibm_asm '"add 0, 0, 0"'
4284 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4285 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4286
4287 # AltiVec flags: The FSF version of GCC differs from the Apple version
4288 if enabled altivec; then
4289 check_cflags -maltivec -mabi=altivec &&
4290 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4291 check_cflags -faltivec
4292
4293 # check if our compiler supports Motorola AltiVec C API
4294 check_cc <<EOF || disable altivec
4295 $inc_altivec_h
4296 int main(void) {
4297 vector signed int v1 = (vector signed int) { 0 };
4298 vector signed int v2 = (vector signed int) { 1 };
4299 v1 = vec_add(v1, v2);
4300 return 0;
4301 }
4302 EOF
4303
4304 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4305 fi
4306
4307 if enabled vsx; then
4308 check_cflags -mvsx &&
4309 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4310 fi
4311
4312 if enabled power8; then
4313 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4314 fi
4315
4316 elif enabled x86; then
4317
4318 check_builtin rdtsc intrin.h "__rdtsc()"
4319 check_builtin mm_empty mmintrin.h "_mm_empty()"
4320
4321 enable local_aligned_8 local_aligned_16
4322
4323 # check whether EBP is available on x86
4324 # As 'i' is stored on the stack, this program will crash
4325 # if the base pointer is used to access it because the
4326 # base pointer is cleared in the inline assembly code.
4327 check_exec_crash <<EOF && enable ebp_available
4328 volatile int i=0;
4329 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4330 return i;
4331 EOF
4332
4333 # check whether EBX is available on x86
4334 check_inline_asm ebx_available '""::"b"(0)' &&
4335 check_inline_asm ebx_available '"":::"%ebx"'
4336
4337 # check whether xmm clobbers are supported
4338 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4339
4340 # check whether binutils is new enough to compile SSSE3/MMXEXT
4341 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4342 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4343
4344 if ! disabled_any asm mmx yasm; then
4345 if check_cmd $yasmexe --version; then
4346 enabled x86_64 && yasm_extra="-m amd64"
4347 yasm_debug="-g dwarf2"
4348 elif check_cmd nasm -v; then
4349 yasmexe=nasm
4350 yasm_debug="-g -F dwarf"
4351 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4352 fi
4353
4354 YASMFLAGS="-f $objformat $yasm_extra"
4355 enabled pic && append YASMFLAGS "-DPIC"
4356 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4357 case "$objformat" in
4358 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4359 esac
4360
4361 check_yasm "movbe ecx, [5]" && enable yasm ||
4362 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4363 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4364 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4365 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4366 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4367 check_yasm "CPU amdnop" || disable cpunop
4368 fi
4369
4370 case "$cpu" in
4371 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4372 disable fast_clz
4373 ;;
4374 esac
4375
4376 fi
4377
4378 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4379
4380 check_ldflags -Wl,--as-needed
4381
4382 if check_func dlopen; then
4383