hwcontext_vdpau: implement device creation
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Individual component options:
136 --disable-everything disable all components listed below
137 --disable-encoder=NAME disable encoder NAME
138 --enable-encoder=NAME enable encoder NAME
139 --disable-encoders disable all encoders
140 --disable-decoder=NAME disable decoder NAME
141 --enable-decoder=NAME enable decoder NAME
142 --disable-decoders disable all decoders
143 --disable-hwaccel=NAME disable hwaccel NAME
144 --enable-hwaccel=NAME enable hwaccel NAME
145 --disable-hwaccels disable all hwaccels
146 --disable-muxer=NAME disable muxer NAME
147 --enable-muxer=NAME enable muxer NAME
148 --disable-muxers disable all muxers
149 --disable-demuxer=NAME disable demuxer NAME
150 --enable-demuxer=NAME enable demuxer NAME
151 --disable-demuxers disable all demuxers
152 --enable-parser=NAME enable parser NAME
153 --disable-parser=NAME disable parser NAME
154 --disable-parsers disable all parsers
155 --enable-bsf=NAME enable bitstream filter NAME
156 --disable-bsf=NAME disable bitstream filter NAME
157 --disable-bsfs disable all bitstream filters
158 --enable-protocol=NAME enable protocol NAME
159 --disable-protocol=NAME disable protocol NAME
160 --disable-protocols disable all protocols
161 --enable-indev=NAME enable input device NAME
162 --disable-indev=NAME disable input device NAME
163 --disable-indevs disable input devices
164 --enable-outdev=NAME enable output device NAME
165 --disable-outdev=NAME disable output device NAME
166 --disable-outdevs disable output devices
167 --disable-devices disable all devices
168 --enable-filter=NAME enable filter NAME
169 --disable-filter=NAME disable filter NAME
170 --disable-filters disable all filters
171
172 External library support:
173
174 Using any of the following switches will allow Libav to link to the
175 corresponding external library. All the components depending on that library
176 will become enabled, if all their other dependencies are met and they are not
177 explicitly disabled. E.g. --enable-libwavpack will enable linking to
178 libwavpack and allow the libwavpack encoder to be built, unless it is
179 specifically disabled with --disable-encoder=libwavpack.
180
181 Note that only the system libraries are auto-detected. All the other external
182 libraries must be explicitly enabled.
183
184 Also note that the following help text describes the purpose of the libraries
185 themselves, not all their features will necessarily be usable by Libav.
186
187 --enable-avisynth video frameserver
188 --enable-bzlib bzip2 compression [autodetect]
189 --enable-frei0r video filtering plugins
190 --enable-gnutls crypto
191 --enable-libbs2b Bauer stereophonic-to-binaural DSP
192 --enable-libcdio audio CD input
193 --enable-libdc1394 IEEE 1394/Firewire camera input
194 --enable-libdcadec DCA audio decoding
195 --enable-libfaac AAC audio encoding
196 --enable-libfdk-aac AAC audio encoding/decoding
197 --enable-libfontconfig font configuration and management
198 --enable-libfreetype font rendering
199 --enable-libgsm GSM audio encoding/decoding
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libkvazaar HEVC video encoding
202 --enable-libmp3lame MP3 audio encoding
203 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
204 --enable-libopencore-amrwb AMR-WB audio decoding
205 --enable-libopencv computer vision
206 --enable-libopenh264 H.264 video encoding/decoding
207 --enable-libopenjpeg JPEG 2000 image encoding/decoding
208 --enable-libopus Opus audio encoding/decoding
209 --enable-libpulse Pulseaudio sound server
210 --enable-librtmp RTMP streaming
211 --enable-libschroedinger Dirac video encoding/decoding
212 --enable-libsnappy snappy compression
213 --enable-libspeex Speex audio encoding/decoding
214 --enable-libtheora Theora video encoding/decoding
215 --enable-libtwolame MP2 audio encoding
216 --enable-libvo-aacenc AAC audio encoding
217 --enable-libvo-amrwbenc AMR-WB audio encoding
218 --enable-libvorbis Vorbis audio encoding/decoding
219 --enable-libvpx VP* video encoding/decoding
220 --enable-libwavpack Wavpack audio encoding/decoding
221 --enable-libwebp WebP image encoding/decoding
222 --enable-libx264 H.264 video encoding
223 --enable-libx265 HEVC video encoding
224 --enable-libxavs Chinese AVS video encoding
225 --enable-libxcb X window system protocol communication
226 --enable-libxcb-shm X11 shm communication [auto]
227 --enable-libxcb-xfixes X11 mouse rendering [auto]
228 --enable-libxvid MPEG-4 ASP video encoding
229 --enable-openssl crypto
230 --enable-x11grab X11 grabbing through xlib (legacy, use xcb instead)
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
236 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
237 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
238 --enable-libnpp Nvidia CUDA processing
239 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
240 --enable-nvenc Nvidia video encoding
241 --enable-omx OpenMAX IL
242 --enable-omx-rpi OpenMAX IL for Raspberry Pi
243 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
244 --enable-vda Apple Video Decode Acceleration [auto]
245 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
246
247 Toolchain options:
248 --arch=ARCH select architecture [$arch]
249 --cpu=CPU select the minimum required CPU (affects
250 instruction selection, may crash on older CPUs)
251 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
252 --enable-cross-compile assume a cross-compiler is used
253 --sysroot=PATH root of cross-build tree
254 --sysinclude=PATH location of cross-build system headers
255 --target-os=OS compiler targets OS [$target_os]
256 --target-exec=CMD command to run executables on target
257 --target-path=DIR path to view of build directory on target
258 --target-samples=DIR path to samples directory on target
259 --toolchain=NAME set tool defaults according to NAME
260 --nm=NM use nm tool
261 --ar=AR use archive tool AR [$ar_default]
262 --as=AS use assembler AS [$as_default]
263 --cc=CC use C compiler CC [$cc_default]
264 --objcc=OCC use ObjC compiler OCC [$cc_default]
265 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
266 --ld=LD use linker LD
267 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
268 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
269 --host-cc=HOSTCC use host C compiler HOSTCC
270 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
271 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
272 --host-ld=HOSTLD use host linker HOSTLD
273 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
274 --host-libs=HLIBS use libs HLIBS when linking for host
275 --host-os=OS compiler host OS [$target_os]
276 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
277 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
278 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
279 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
280 --extra-libs=ELIBS add ELIBS [$ELIBS]
281 --extra-version=STRING version string suffix []
282 --optflags=OPTFLAGS override optimization-related compiler flags
283 --build-suffix=SUFFIX library name suffix []
284 --enable-pic build position-independent code
285 --enable-thumb compile for Thumb instruction set
286 --enable-lto use link-time optimization
287 --env="ENV=override" override the environment variables
288
289 Advanced options (experts only):
290 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
291 --custom-allocator=NAME use a supported custom allocator
292 --disable-symver disable symbol versioning
293 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
294 --disable-safe-bitstream-reader
295 disable buffer boundary checking in bitreaders
296 (faster, but may crash)
297 --enable-memalign-hack emulate memalign, interferes with memory debuggers
298 --enable-sram allow use of on-chip SRAM
299
300 Optimization options (experts only):
301 --disable-asm disable all assembly optimizations
302 --disable-altivec disable AltiVec optimizations
303 --disable-vsx disable VSX optimizations
304 --disable-power8 disable POWER8 optimizations
305 --disable-amd3dnow disable 3DNow! optimizations
306 --disable-amd3dnowext disable 3DNow! extended optimizations
307 --disable-mmx disable MMX optimizations
308 --disable-mmxext disable MMXEXT optimizations
309 --disable-sse disable SSE optimizations
310 --disable-sse2 disable SSE2 optimizations
311 --disable-sse3 disable SSE3 optimizations
312 --disable-ssse3 disable SSSE3 optimizations
313 --disable-sse4 disable SSE4 optimizations
314 --disable-sse42 disable SSE4.2 optimizations
315 --disable-avx disable AVX optimizations
316 --disable-xop disable XOP optimizations
317 --disable-fma3 disable FMA3 optimizations
318 --disable-fma4 disable FMA4 optimizations
319 --disable-avx2 disable AVX2 optimizations
320 --disable-armv5te disable armv5te optimizations
321 --disable-armv6 disable armv6 optimizations
322 --disable-armv6t2 disable armv6t2 optimizations
323 --disable-vfp disable VFP optimizations
324 --disable-neon disable NEON optimizations
325 --disable-inline-asm disable use of inline assembly
326 --disable-yasm disable use of nasm/yasm assembly
327
328 Developer options (useful when working on Libav itself):
329 --disable-debug disable debugging symbols
330 --enable-debug=LEVEL set the debug level [$debuglevel]
331 --disable-optimizations disable compiler optimizations
332 --enable-extra-warnings enable more compiler warnings
333 --samples=PATH location of test samples for FATE, if not set use
334 \$LIBAV_SAMPLES at make invocation time.
335 --enable-neon-clobber-test check NEON registers for clobbering (should be
336 used only for debugging purposes)
337 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
338 should be used only for debugging purposes)
339 --enable-random randomly enable/disable components
340 --disable-random
341 --enable-random=LIST randomly enable/disable specific components or
342 --disable-random=LIST component groups. LIST is a comma-separated list
343 of NAME[:PROB] entries where NAME is a component
344 (group) and PROB the probability associated with
345 NAME (default 0.5).
346 --random-seed=VALUE seed value for --enable/disable-random
347 --disable-valgrind-backtrace do not print a backtrace under Valgrind
348 (only applies to --disable-optimizations builds)
349
350 NOTE: Object files are built at the place where configure is launched.
351 EOF
352 exit 0
353 }
354
355 quotes='""'
356
357 log(){
358 echo "$@" >> $logfile
359 }
360
361 log_file(){
362 log BEGIN $1
363 i=1
364 while read line; do
365 printf '%5s %s\n' "${i}" "${line}"
366 i=$(($i+1))
367 done < $1 >> $logfile
368 log END $1
369 }
370
371 echolog(){
372 log "$@"
373 echo "$@"
374 }
375
376 warn(){
377 log "WARNING: $*"
378 WARNINGS="${WARNINGS}WARNING: $*\n"
379 }
380
381 die(){
382 echolog "$@"
383 cat <<EOF
384
385 If you think configure made a mistake, make sure you are using the latest
386 version from Git. If the latest version fails, report the problem to the
387 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
388 EOF
389 if disabled logging; then
390 cat <<EOF
391 Rerun configure with logging enabled (do not use --disable-logging), and
392 include the log this produces with your report.
393 EOF
394 else
395 cat <<EOF
396 Include the log file "$logfile" produced by configure as this will help
397 solving the problem.
398 EOF
399 fi
400 exit 1
401 }
402
403 # Avoid locale weirdness, besides we really just want to translate ASCII.
404 toupper(){
405 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
406 }
407
408 tolower(){
409 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
410 }
411
412 c_escape(){
413 echo "$*" | sed 's/["\\]/\\\0/g'
414 }
415
416 sh_quote(){
417 v=$(echo "$1" | sed "s/'/'\\\\''/g")
418 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
419 echo "$v"
420 }
421
422 cleanws(){
423 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
424 }
425
426 filter(){
427 pat=$1
428 shift
429 for v; do
430 eval "case $v in $pat) echo $v ;; esac"
431 done
432 }
433
434 filter_out(){
435 pat=$1
436 shift
437 for v; do
438 eval "case $v in $pat) ;; *) echo $v ;; esac"
439 done
440 }
441
442 map(){
443 m=$1
444 shift
445 for v; do eval $m; done
446 }
447
448 add_suffix(){
449 suffix=$1
450 shift
451 for v; do echo ${v}${suffix}; done
452 }
453
454 set_all(){
455 value=$1
456 shift
457 for var in $*; do
458 eval $var=$value
459 done
460 }
461
462 set_weak(){
463 value=$1
464 shift
465 for var; do
466 eval : \${$var:=$value}
467 done
468 }
469
470 sanitize_var_name(){
471 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
472 }
473
474 set_safe(){
475 var=$1
476 shift
477 eval $(sanitize_var_name "$var")='$*'
478 }
479
480 get_safe(){
481 eval echo \$$(sanitize_var_name "$1")
482 }
483
484 pushvar(){
485 for pvar in $*; do
486 eval level=\${${pvar}_level:=0}
487 eval ${pvar}_${level}="\$$pvar"
488 eval ${pvar}_level=$(($level+1))
489 done
490 }
491
492 popvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:-0}
495 test $level = 0 && continue
496 eval level=$(($level-1))
497 eval $pvar="\${${pvar}_${level}}"
498 eval ${pvar}_level=$level
499 eval unset ${pvar}_${level}
500 done
501 }
502
503 enable(){
504 set_all yes $*
505 }
506
507 disable(){
508 set_all no $*
509 }
510
511 enable_weak(){
512 set_weak yes $*
513 }
514
515 disable_weak(){
516 set_weak no $*
517 }
518
519 enable_safe(){
520 for var; do
521 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
522 done
523 }
524
525 disable_safe(){
526 for var; do
527 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 do_enable_deep(){
532 for var; do
533 enabled $var && continue
534 eval sel="\$${var}_select"
535 eval sgs="\$${var}_suggest"
536 pushvar var sgs
537 enable_deep $sel
538 popvar sgs
539 enable_deep_weak $sgs
540 popvar var
541 done
542 }
543
544 enable_deep(){
545 do_enable_deep $*
546 enable $*
547 }
548
549 enable_deep_weak(){
550 for var; do
551 disabled $var && continue
552 pushvar var
553 do_enable_deep $var
554 popvar var
555 enable_weak $var
556 done
557 }
558
559 enabled(){
560 test "${1#!}" = "$1" && op== || op=!=
561 eval test "x\$${1#!}" $op "xyes"
562 }
563
564 disabled(){
565 test "${1#!}" = "$1" && op== || op=!=
566 eval test "x\$${1#!}" $op "xno"
567 }
568
569 enabled_all(){
570 for opt; do
571 enabled $opt || return 1
572 done
573 }
574
575 disabled_all(){
576 for opt; do
577 disabled $opt || return 1
578 done
579 }
580
581 enabled_any(){
582 for opt; do
583 enabled $opt && return 0
584 done
585 }
586
587 disabled_any(){
588 for opt; do
589 disabled $opt && return 0
590 done
591 return 1
592 }
593
594 set_default(){
595 for opt; do
596 eval : \${$opt:=\$${opt}_default}
597 done
598 }
599
600 is_in(){
601 value=$1
602 shift
603 for var in $*; do
604 [ $var = $value ] && return 0
605 done
606 return 1
607 }
608
609 do_check_deps(){
610 for cfg; do
611 cfg="${cfg#!}"
612 enabled ${cfg}_checking && die "Circular dependency for $cfg."
613 disabled ${cfg}_checking && continue
614 enable ${cfg}_checking
615 append allopts $cfg
616
617 eval dep_all="\$${cfg}_deps"
618 eval dep_any="\$${cfg}_deps_any"
619 eval dep_sel="\$${cfg}_select"
620 eval dep_sgs="\$${cfg}_suggest"
621 eval dep_ifa="\$${cfg}_if"
622 eval dep_ifn="\$${cfg}_if_any"
623
624 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
625 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
626 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627
628 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
629 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
630 enabled_all $dep_all || disable $cfg
631 enabled_any $dep_any || disable $cfg
632 disabled_any $dep_sel && disable $cfg
633
634 if enabled $cfg; then
635 enable_deep $dep_sel
636 enable_deep_weak $dep_sgs
637 fi
638
639 disable ${cfg}_checking
640 done
641 }
642
643 check_deps(){
644 unset allopts
645
646 do_check_deps "$@"
647
648 for cfg in $allopts; do
649 enabled $cfg || continue
650 eval dep_extralibs="\$${cfg}_extralibs"
651 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
652 done
653 }
654
655 print_config(){
656 pfx=$1
657 files=$2
658 shift 2
659 map 'eval echo "$v \${$v:-no}"' "$@" |
660 awk "BEGIN { split(\"$files\", files) }
661 {
662 c = \"$pfx\" toupper(\$1);
663 v = \$2;
664 sub(/yes/, 1, v);
665 sub(/no/, 0, v);
666 for (f in files) {
667 file = files[f];
668 if (file ~ /\\.h\$/) {
669 printf(\"#define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.asm\$/) {
671 printf(\"%%define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.mak\$/) {
673 n = -v ? \"\" : \"!\";
674 printf(\"%s%s=yes\\n\", n, c) >>file;
675 }
676 }
677 }"
678 }
679
680 print_enabled(){
681 suf=$1
682 shift
683 for v; do
684 enabled $v && printf "%s\n" ${v%$suf}
685 done
686 }
687
688 append(){
689 var=$1
690 shift
691 eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695 var=$1
696 shift
697 eval "$var=\"$* \$$var\""
698 }
699
700 unique(){
701 var=$1
702 uniq_list=""
703 for tok in $(eval echo \$$var); do
704 uniq_list="$(filter_out $tok $uniq_list) $tok"
705 done
706 eval "$var=\"${uniq_list}\""
707 }
708
709 add_cppflags(){
710 append CPPFLAGS "$@"
711 }
712
713 add_cflags(){
714 append CFLAGS $($cflags_filter "$@")
715 }
716
717 add_asflags(){
718 append ASFLAGS $($asflags_filter "$@")
719 }
720
721 add_objcflags(){
722 append OBJCFLAGS $($objcflags_filter "$@")
723 }
724
725 add_ldflags(){
726 append LDFLAGS $($ldflags_filter "$@")
727 }
728
729 add_ldexeflags(){
730 append LDEXEFLAGS $($ldflags_filter "$@")
731 }
732
733 add_stripflags(){
734 append STRIPFLAGS "$@"
735 }
736
737 add_extralibs(){
738 prepend extralibs $($ldflags_filter "$@")
739 }
740
741 add_host_cppflags(){
742 append host_cppflags "$@"
743 }
744
745 add_host_cflags(){
746 append host_cflags $($host_cflags_filter "$@")
747 }
748
749 add_host_ldflags(){
750 append host_ldflags $($host_ldflags_filter "$@")
751 }
752
753 add_compat(){
754 append compat_objs $1
755 shift
756 map 'add_cppflags -D$v' "$@"
757 }
758
759 check_cmd(){
760 log "$@"
761 "$@" >> $logfile 2>&1
762 }
763
764 cc_o(){
765 eval printf '%s\\n' $CC_O
766 }
767
768 cc_e(){
769 eval printf '%s\\n' $CC_E
770 }
771
772 check_cc(){
773 log check_cc "$@"
774 cat > $TMPC
775 log_file $TMPC
776 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
777 }
778
779 check_objcc(){
780 log check_objcc "$@"
781 cat > $TMPC
782 log_file $TMPC
783 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
784 }
785
786 check_cpp(){
787 log check_cpp "$@"
788 cat > $TMPC
789 log_file $TMPC
790 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
791 }
792
793 as_o(){
794 eval printf '%s\\n' $AS_O
795 }
796
797 check_as(){
798 log check_as "$@"
799 cat > $TMPS
800 log_file $TMPS
801 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
802 }
803
804 check_inline_asm(){
805 log check_inline_asm "$@"
806 name="$1"
807 code="$2"
808 shift 2
809 disable $name
810 check_cc "$@" <<EOF && enable $name
811 void foo(void){ __asm__ volatile($code); }
812 EOF
813 }
814
815 check_insn(){
816 log check_insn "$@"
817 check_inline_asm ${1}_inline "\"$2\""
818 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
819 }
820
821 check_yasm(){
822 log check_yasm "$@"
823 echo "$1" > $TMPS
824 log_file $TMPS
825 shift 1
826 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
827 }
828
829 ld_o(){
830 eval printf '%s\\n' $LD_O
831 }
832
833 check_ld(){
834 log check_ld "$@"
835 flags=$(filter_out '-l*' "$@")
836 libs=$(filter '-l*' "$@")
837 check_cc $($cflags_filter $flags) || return
838 flags=$($ldflags_filter $flags)
839 libs=$($ldflags_filter $libs)
840 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
841 }
842
843 print_include(){
844 hdr=$1
845 test "${hdr%.h}" = "${hdr}" &&
846 echo "#include $hdr" ||
847 echo "#include <$hdr>"
848 }
849
850 check_code(){
851 log check_code "$@"
852 check=$1
853 headers=$2
854 code=$3
855 shift 3
856 {
857 for hdr in $headers; do
858 print_include $hdr
859 done
860 echo "int main(void) { $code; return 0; }"
861 } | check_$check "$@"
862 }
863
864 check_cppflags(){
865 log check_cppflags "$@"
866 check_cc "$@" <<EOF && append CPPFLAGS "$@"
867 int x;
868 EOF
869 }
870
871 test_cflags(){
872 log test_cflags "$@"
873 set -- $($cflags_filter "$@")
874 check_cc "$@" <<EOF
875 int x;
876 EOF
877 }
878
879 check_cflags(){
880 log check_cflags "$@"
881 test_cflags "$@" && add_cflags "$@"
882 }
883
884 test_objcflags(){
885 log test_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_objcc "$@" <<EOF
888 int x;
889 EOF
890 }
891
892 check_objcflags(){
893 log check_cflags "$@"
894 test_objcflags "$@" && add_objcflags "$@"
895 }
896
897 test_ldflags(){
898 log test_ldflags "$@"
899 check_ld "$@" <<EOF
900 int main(void){ return 0; }
901 EOF
902 }
903
904 check_ldflags(){
905 log check_ldflags "$@"
906 test_ldflags "$@" && add_ldflags "$@"
907 }
908
909 test_stripflags(){
910 log test_stripflags "$@"
911 # call check_cc to get a fresh TMPO
912 check_cc <<EOF
913 int main(void) { return 0; }
914 EOF
915 check_cmd $strip $STRIPFLAGS "$@" $TMPO
916 }
917
918 check_stripflags(){
919 log check_stripflags "$@"
920 test_stripflags "$@" && add_stripflags "$@"
921 }
922
923 check_header(){
924 log check_header "$@"
925 header=$1
926 shift
927 disable_safe $header
928 check_cpp "$@" <<EOF && enable_safe $header
929 #include <$header>
930 int x;
931 EOF
932 }
933
934 check_func(){
935 log check_func "$@"
936 func=$1
937 shift
938 disable $func
939 check_ld "$@" <<EOF && enable $func
940 extern int $func();
941 int main(void){ $func(); }
942 EOF
943 }
944
945 check_mathfunc(){
946 log check_mathfunc "$@"
947 func=$1
948 narg=$2
949 shift 2
950 test $narg = 2 && args="f, g" || args="f"
951 disable $func
952 check_ld "$@" <<EOF && enable $func
953 #include <math.h>
954 float foo(float f, float g) { return $func($args); }
955 int main(void){ return 0; }
956 EOF
957 }
958
959 check_func_headers(){
960 log check_func_headers "$@"
961 headers=$1
962 funcs=$2
963 shift 2
964 {
965 for hdr in $headers; do
966 print_include $hdr
967 done
968 for func in $funcs; do
969 echo "long check_$func(void) { return (long) $func; }"
970 done
971 echo "int main(void) { return 0; }"
972 } | check_ld "$@" && enable $funcs && enable_safe $headers
973 }
974
975 check_cpp_condition(){
976 log check_cpp_condition "$@"
977 header=$1
978 condition=$2
979 shift 2
980 check_cpp "$@" <<EOF
981 #include <$header>
982 #if !($condition)
983 #error "unsatisfied condition: $condition"
984 #endif
985 EOF
986 }
987
988 check_lib(){
989 log check_lib "$@"
990 header="$1"
991 func="$2"
992 shift 2
993 check_header $header && check_func $func "$@" && add_extralibs "$@"
994 }
995
996 check_lib2(){
997 log check_lib2 "$@"
998 headers="$1"
999 funcs="$2"
1000 shift 2
1001 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1002 }
1003
1004 check_pkg_config(){
1005 log check_pkg_config "$@"
1006 pkg="$1"
1007 headers="$2"
1008 funcs="$3"
1009 shift 3
1010 check_cmd $pkg_config --exists --print-errors $pkg || return
1011 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1012 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1013 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1014 set_safe "${pkg}_cflags" $pkg_cflags &&
1015 set_safe "${pkg}_libs" $pkg_libs
1016 }
1017
1018 check_exec(){
1019 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1020 }
1021
1022 check_exec_crash(){
1023 code=$(cat)
1024
1025 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1026 # are safe but may not be available everywhere. Thus we use
1027 # raise(SIGTERM) instead. The check is run in a subshell so we
1028 # can redirect the "Terminated" message from the shell. SIGBUS
1029 # is not defined by standard C so it is used conditionally.
1030
1031 (check_exec "$@") >> $logfile 2>&1 <<EOF
1032 #include <signal.h>
1033 static void sighandler(int sig){
1034 raise(SIGTERM);
1035 }
1036 int foo(void){
1037 $code
1038 }
1039 int (*func_ptr)(void) = foo;
1040 int main(void){
1041 signal(SIGILL, sighandler);
1042 signal(SIGFPE, sighandler);
1043 signal(SIGSEGV, sighandler);
1044 #ifdef SIGBUS
1045 signal(SIGBUS, sighandler);
1046 #endif
1047 return func_ptr();
1048 }
1049 EOF
1050 }
1051
1052 check_type(){
1053 log check_type "$@"
1054 headers=$1
1055 type=$2
1056 shift 2
1057 disable_safe "$type"
1058 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1059 }
1060
1061 check_struct(){
1062 log check_struct "$@"
1063 headers=$1
1064 struct=$2
1065 member=$3
1066 shift 3
1067 disable_safe "${struct}_${member}"
1068 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1069 enable_safe "${struct}_${member}"
1070 }
1071
1072 check_builtin(){
1073 log check_builtin "$@"
1074 name=$1
1075 headers=$2
1076 builtin=$3
1077 shift 3
1078 disable "$name"
1079 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1080 }
1081
1082 check_compile_assert(){
1083 log check_compile_assert "$@"
1084 name=$1
1085 headers=$2
1086 condition=$3
1087 shift 3
1088 disable "$name"
1089 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1090 }
1091
1092 require(){
1093 name="$1"
1094 header="$2"
1095 func="$3"
1096 shift 3
1097 check_lib $header $func "$@" || die "ERROR: $name not found"
1098 }
1099
1100 require2(){
1101 name="$1"
1102 headers="$2"
1103 func="$3"
1104 shift 3
1105 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1106 }
1107
1108 require_pkg_config(){
1109 pkg="$1"
1110 check_pkg_config "$@" || die "ERROR: $pkg not found"
1111 add_cflags $(get_safe "${pkg}_cflags")
1112 add_extralibs $(get_safe "${pkg}_libs")
1113 }
1114
1115 hostcc_e(){
1116 eval printf '%s\\n' $HOSTCC_E
1117 }
1118
1119 hostcc_o(){
1120 eval printf '%s\\n' $HOSTCC_O
1121 }
1122
1123 check_host_cc(){
1124 log check_host_cc "$@"
1125 cat > $TMPC
1126 log_file $TMPC
1127 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1128 }
1129
1130 check_host_cpp(){
1131 log check_host_cpp "$@"
1132 cat > $TMPC
1133 log_file $TMPC
1134 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1135 }
1136
1137 check_host_cppflags(){
1138 log check_host_cppflags "$@"
1139 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1140 int x;
1141 EOF
1142 }
1143
1144 check_host_cflags(){
1145 log check_host_cflags "$@"
1146 set -- $($host_cflags_filter "$@")
1147 check_host_cc "$@" <<EOF && append host_cflags "$@"
1148 int x;
1149 EOF
1150 }
1151
1152 check_host_cpp_condition(){
1153 log check_host_cpp_condition "$@"
1154 header=$1
1155 condition=$2
1156 shift 2
1157 check_host_cpp "$@" <<EOF
1158 #include <$header>
1159 #if !($condition)
1160 #error "unsatisfied condition: $condition"
1161 #endif
1162 EOF
1163 }
1164
1165 apply(){
1166 file=$1
1167 shift
1168 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1169 }
1170
1171 cp_if_changed(){
1172 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1173 mkdir -p "$(dirname $2)"
1174 $cp_f "$1" "$2"
1175 }
1176
1177 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1178 # system-dependent things.
1179
1180 AVCODEC_COMPONENTS="
1181 bsfs
1182 decoders
1183 encoders
1184 hwaccels
1185 parsers
1186 "
1187
1188 AVDEVICE_COMPONENTS="
1189 indevs
1190 outdevs
1191 "
1192 AVFILTER_COMPONENTS="
1193 filters
1194 "
1195 AVFORMAT_COMPONENTS="
1196 demuxers
1197 muxers
1198 protocols
1199 "
1200
1201 AVRESAMPLE_COMPONENTS=""
1202 AVUTIL_COMPONENTS=""
1203
1204 COMPONENT_LIST="
1205 $AVCODEC_COMPONENTS
1206 $AVDEVICE_COMPONENTS
1207 $AVFILTER_COMPONENTS
1208 $AVFORMAT_COMPONENTS
1209 $AVRESAMPLE_COMPONENTS
1210 $AVUTIL_COMPONENTS
1211 "
1212
1213 EXAMPLE_LIST="
1214 avcodec_example
1215 filter_audio_example
1216 metadata_example
1217 output_example
1218 qsvdec_example
1219 transcode_aac_example
1220 "
1221
1222 HWACCEL_LIBRARY_LIST="
1223 cuda
1224 d3d11va
1225 dxva2
1226 libmfx
1227 libnpp
1228 mmal
1229 nvenc
1230 omx
1231 vaapi
1232 vda
1233 vdpau
1234 "
1235
1236 EXTERNAL_LIBRARY_LIST="
1237 avisynth
1238 bzlib
1239 frei0r
1240 gnutls
1241 libbs2b
1242 libcdio
1243 libdc1394
1244 libdcadec
1245 libfaac
1246 libfdk_aac
1247 libfontconfig
1248 libfreetype
1249 libgsm
1250 libilbc
1251 libkvazaar
1252 libmp3lame
1253 libopencore_amrnb
1254 libopencore_amrwb
1255 libopencv
1256 libopenh264
1257 libopenjpeg
1258 libopus
1259 libpulse
1260 librtmp
1261 libschroedinger
1262 libsnappy
1263 libspeex
1264 libtheora
1265 libtwolame
1266 libvo_aacenc
1267 libvo_amrwbenc
1268 libvorbis
1269 libvpx
1270 libwavpack
1271 libwebp
1272 libx264
1273 libx265
1274 libxavs
1275 libxcb
1276 libxcb_shm
1277 libxcb_xfixes
1278 libxvid
1279 openssl
1280 x11grab
1281 zlib
1282 "
1283
1284 FEATURE_LIST="
1285 gray
1286 hardcoded_tables
1287 omx_rpi
1288 runtime_cpudetect
1289 safe_bitstream_reader
1290 shared
1291 small
1292 sram
1293 static
1294 swscale_alpha
1295 "
1296
1297 LIBRARY_LIST="
1298 avcodec
1299 avdevice
1300 avfilter
1301 avformat
1302 avresample
1303 avutil
1304 swscale
1305 "
1306
1307 LICENSE_LIST="
1308 gpl
1309 nonfree
1310 version3
1311 "
1312
1313 PROGRAM_LIST="
1314 avconv
1315 avplay
1316 avprobe
1317 "
1318
1319 SUBSYSTEM_LIST="
1320 dct
1321 doc
1322 error_resilience
1323 faan
1324 fft
1325 lsp
1326 lzo
1327 mdct
1328 network
1329 rdft
1330 "
1331
1332 CONFIG_LIST="
1333 $COMPONENT_LIST
1334 $EXAMPLE_LIST
1335 $EXTERNAL_LIBRARY_LIST
1336 $HWACCEL_LIBRARY_LIST
1337 $FEATURE_LIST
1338 $LICENSE_LIST
1339 $LIBRARY_LIST
1340 $PROGRAM_LIST
1341 $SUBSYSTEM_LIST
1342 memalign_hack
1343 neon_clobber_test
1344 pic
1345 pod2man
1346 texi2html
1347 thumb
1348 valgrind_backtrace
1349 xmm_clobber_test
1350 "
1351
1352 THREADS_LIST="
1353 pthreads
1354 w32threads
1355 "
1356
1357 ATOMICS_LIST="
1358 atomics_gcc
1359 atomics_suncc
1360 atomics_win32
1361 "
1362
1363 ARCH_LIST="
1364 aarch64
1365 alpha
1366 arm
1367 avr32
1368 avr32_ap
1369 avr32_uc
1370 bfin
1371 ia64
1372 m68k
1373 mips
1374 mips64
1375 parisc
1376 ppc
1377 ppc64
1378 s390
1379 sh4
1380 sparc
1381 sparc64
1382 tilegx
1383 tilepro
1384 tomi
1385 x86
1386 x86_32
1387 x86_64
1388 "
1389
1390 ARCH_EXT_LIST_ARM="
1391 armv5te
1392 armv6
1393 armv6t2
1394 armv8
1395 neon
1396 vfp
1397 vfpv3
1398 "
1399
1400 ARCH_EXT_LIST_X86_SIMD="
1401 amd3dnow
1402 amd3dnowext
1403 avx
1404 avx2
1405 fma3
1406 fma4
1407 mmx
1408 mmxext
1409 sse
1410 sse2
1411 sse3
1412 sse4
1413 sse42
1414 ssse3
1415 xop
1416 "
1417
1418 ARCH_EXT_LIST_PPC="
1419 altivec
1420 dcbzl
1421 ldbrx
1422 power8
1423 ppc4xx
1424 vsx
1425 "
1426
1427 ARCH_EXT_LIST_X86="
1428 $ARCH_EXT_LIST_X86_SIMD
1429 cpunop
1430 i686
1431 "
1432
1433 ARCH_EXT_LIST_MIPS="
1434 loongson
1435 mips32r1
1436 mips64r1
1437 mips32r2
1438 mips64r2
1439 mips32r6
1440 mips64r6
1441 "
1442
1443 ARCH_EXT_LIST="
1444 $ARCH_EXT_LIST_ARM
1445 $ARCH_EXT_LIST_MIPS
1446 $ARCH_EXT_LIST_PPC
1447 $ARCH_EXT_LIST_X86
1448 vis
1449 "
1450
1451 ARCH_FEATURES="
1452 aligned_stack
1453 fast_64bit
1454 fast_clz
1455 fast_cmov
1456 local_aligned_8
1457 local_aligned_16
1458 simd_align_16
1459 "
1460
1461 BUILTIN_LIST="
1462 atomic_cas_ptr
1463 machine_rw_barrier
1464 MemoryBarrier
1465 mm_empty
1466 rdtsc
1467 sem_timedwait
1468 sync_val_compare_and_swap
1469 "
1470 HAVE_LIST_CMDLINE="
1471 inline_asm
1472 symver
1473 yasm
1474 "
1475
1476 HAVE_LIST_PUB="
1477 bigendian
1478 fast_unaligned
1479 "
1480
1481 HEADERS_LIST="
1482 AVFoundation_AVFoundation_h
1483 alsa_asoundlib_h
1484 altivec_h
1485 arpa_inet_h
1486 cdio_paranoia_h
1487 cdio_paranoia_paranoia_h
1488 dispatch_dispatch_h
1489 dev_bktr_ioctl_bt848_h
1490 dev_bktr_ioctl_meteor_h
1491 dev_ic_bt8xx_h
1492 dev_video_bktr_ioctl_bt848_h
1493 dev_video_meteor_ioctl_meteor_h
1494 direct_h
1495 dlfcn_h
1496 d3d11_h
1497 dxva_h
1498 gsm_h
1499 io_h
1500 mach_mach_time_h
1501 machine_ioctl_bt848_h
1502 machine_ioctl_meteor_h
1503 malloc_h
1504 poll_h
1505 sndio_h
1506 soundcard_h
1507 sys_mman_h
1508 sys_param_h
1509 sys_resource_h
1510 sys_select_h
1511 sys_soundcard_h
1512 sys_time_h
1513 sys_un_h
1514 sys_videoio_h
1515 unistd_h
1516 valgrind_valgrind_h
1517 windows_h
1518 winsock2_h
1519 "
1520
1521 INTRINSICS_LIST="
1522 intrinsics_neon
1523 "
1524
1525 MATH_FUNCS="
1526 atanf
1527 atan2f
1528 cbrtf
1529 cosf
1530 exp2
1531 exp2f
1532 expf
1533 isinf
1534 isnan
1535 ldexpf
1536 llrint
1537 llrintf
1538 log2
1539 log2f
1540 log10f
1541 lrint
1542 lrintf
1543 powf
1544 rint
1545 round
1546 roundf
1547 sinf
1548 trunc
1549 truncf
1550 "
1551
1552 SYSTEM_FUNCS="
1553 aligned_malloc
1554 clock_gettime
1555 closesocket
1556 CommandLineToArgvW
1557 CoTaskMemFree
1558 CryptGenRandom
1559 dlopen
1560 fcntl
1561 flt_lim
1562 fork
1563 getaddrinfo
1564 gethrtime
1565 getopt
1566 GetProcessAffinityMask
1567 GetProcessMemoryInfo
1568 GetProcessTimes
1569 getrusage
1570 GetSystemTimeAsFileTime
1571 gettimeofday
1572 gmtime_r
1573 inet_aton
1574 isatty
1575 jack_port_get_latency_range
1576 LoadLibrary
1577 localtime_r
1578 mach_absolute_time
1579 MapViewOfFile
1580 memalign
1581 mkstemp
1582 mmap
1583 mprotect
1584 nanosleep
1585 posix_memalign
1586 sched_getaffinity
1587 SetConsoleTextAttribute
1588 setmode
1589 setrlimit
1590 Sleep
1591 strerror_r
1592 sysconf
1593 sysctl
1594 usleep
1595 VirtualAlloc
1596 "
1597
1598 TOOLCHAIN_FEATURES="
1599 as_dn_directive
1600 as_func
1601 as_object_arch
1602 asm_mod_q
1603 attribute_may_alias
1604 attribute_packed
1605 ebp_available
1606 ebx_available
1607 gnu_as
1608 ibm_asm
1609 inline_asm_labels
1610 pragma_deprecated
1611 symver_asm_label
1612 symver_gnu_asm
1613 vfp_args
1614 xform_asm
1615 xmm_clobbers
1616 "
1617
1618 TYPES_LIST="
1619 CONDITION_VARIABLE_Ptr
1620 socklen_t
1621 struct_addrinfo
1622 struct_group_source_req
1623 struct_ip_mreq_source
1624 struct_ipv6_mreq
1625 struct_pollfd
1626 struct_rusage_ru_maxrss
1627 struct_sockaddr_in6
1628 struct_sockaddr_sa_len
1629 struct_sockaddr_storage
1630 struct_v4l2_frmivalenum_discrete
1631 "
1632
1633 HAVE_LIST="
1634 $ARCH_EXT_LIST
1635 $(add_suffix _external $ARCH_EXT_LIST)
1636 $(add_suffix _inline $ARCH_EXT_LIST)
1637 $ARCH_FEATURES
1638 $ATOMICS_LIST
1639 $BUILTIN_LIST
1640 $HAVE_LIST_CMDLINE
1641 $HAVE_LIST_PUB
1642 $HEADERS_LIST
1643 $INTRINSICS_LIST
1644 $MATH_FUNCS
1645 $SYSTEM_FUNCS
1646 $THREADS_LIST
1647 $TOOLCHAIN_FEATURES
1648 $TYPES_LIST
1649 atomics_native
1650 dos_paths
1651 dxva2_lib
1652 libc_msvcrt
1653 libdc1394_1
1654 libdc1394_2
1655 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1656 sdl
1657 section_data_rel_ro
1658 threads
1659 vaapi_drm
1660 vaapi_x11
1661 vdpau_x11
1662 xlib
1663 "
1664
1665 # options emitted with CONFIG_ prefix but not available on the command line
1666 CONFIG_EXTRA="
1667 aandcttables
1668 ac3dsp
1669 audio_frame_queue
1670 audiodsp
1671 blockdsp
1672 bswapdsp
1673 cabac
1674 dirac_parse
1675 dvprofile
1676 faandct
1677 faanidct
1678 fdctdsp
1679 flacdsp
1680 fmtconvert
1681 g722dsp
1682 gcrypt
1683 gmp
1684 golomb
1685 gplv3
1686 h263dsp
1687 h264chroma
1688 h264dsp
1689 h264pred
1690 h264qpel
1691 hpeldsp
1692 huffman
1693 huffyuvdsp
1694 huffyuvencdsp
1695 idctdsp
1696 iirfilter
1697 imdct15
1698 intrax8
1699 iso_media
1700 ividsp
1701 jpegtables
1702 libx262
1703 lgplv3
1704 lpc
1705 lzf
1706 me_cmp
1707 mpeg_er
1708 mpegaudio
1709 mpegaudiodsp
1710 mpegvideo
1711 mpegvideoenc
1712 mss34dsp
1713 pixblockdsp
1714 qpeldsp
1715 qsv
1716 qsvdec
1717 qsvenc
1718 rangecoder
1719 riffdec
1720 riffenc
1721 rtpdec
1722 rtpenc_chain
1723 rv34dsp
1724 sinewin
1725 snappy
1726 srtp
1727 startcode
1728 texturedsp
1729 texturedspenc
1730 tpeldsp
1731 vaapi_encode
1732 vc1dsp
1733 videodsp
1734 vp3dsp
1735 vp56dsp
1736 vp8dsp
1737 wma_freqs
1738 wmv2dsp
1739 "
1740
1741 CMDLINE_SELECT="
1742 $ARCH_EXT_LIST
1743 $CONFIG_LIST
1744 $HAVE_LIST_CMDLINE
1745 $THREADS_LIST
1746 asm
1747 cross_compile
1748 debug
1749 extra_warnings
1750 logging
1751 lto
1752 optimizations
1753 rpath
1754 "
1755
1756 PATHS_LIST="
1757 bindir
1758 datadir
1759 docdir
1760 incdir
1761 libdir
1762 mandir
1763 prefix
1764 shlibdir
1765 "
1766
1767 CMDLINE_SET="
1768 $PATHS_LIST
1769 ar
1770 arch
1771 as
1772 build_suffix
1773 cc
1774 objcc
1775 cpu
1776 cross_prefix
1777 custom_allocator
1778 dep_cc
1779 env
1780 extra_version
1781 host_cc
1782 host_cflags
1783 host_ld
1784 host_ldflags
1785 host_libs
1786 host_os
1787 ld
1788 logfile
1789 malloc_prefix
1790 nm
1791 optflags
1792 pkg_config
1793 pkg_config_flags
1794 random_seed
1795 samples
1796 sysinclude
1797 sysroot
1798 target_exec
1799 target_os
1800 target_path
1801 target_samples
1802 toolchain
1803 "
1804
1805 CMDLINE_APPEND="
1806 extra_cflags
1807 extra_objcflags
1808 host_cppflags
1809 "
1810
1811 # code dependency declarations
1812
1813 # architecture extensions
1814
1815 armv5te_deps="arm"
1816 armv6_deps="arm"
1817 armv6t2_deps="arm"
1818 armv8_deps="aarch64"
1819 neon_deps_any="aarch64 arm"
1820 intrinsics_neon_deps="neon"
1821 vfp_deps_any="aarch64 arm"
1822 vfpv3_deps="vfp"
1823
1824 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1825
1826 altivec_deps="ppc"
1827 ppc4xx_deps="ppc"
1828 vsx_deps="altivec"
1829 power8_deps="vsx"
1830
1831 cpunop_deps="i686"
1832 x86_64_select="i686"
1833 x86_64_suggest="fast_cmov"
1834
1835 amd3dnow_deps="mmx"
1836 amd3dnowext_deps="amd3dnow"
1837 i686_deps="x86"
1838 mmx_deps="x86"
1839 mmxext_deps="mmx"
1840 sse_deps="mmxext"
1841 sse2_deps="sse"
1842 sse3_deps="sse2"
1843 ssse3_deps="sse3"
1844 sse4_deps="ssse3"
1845 sse42_deps="sse4"
1846 avx_deps="sse42"
1847 xop_deps="avx"
1848 fma3_deps="avx"
1849 fma4_deps="avx"
1850 avx2_deps="avx"
1851
1852 mmx_external_deps="yasm"
1853 mmx_inline_deps="inline_asm"
1854 mmx_suggest="mmx_external mmx_inline"
1855
1856 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1857 eval dep=\$${ext}_deps
1858 eval ${ext}_external_deps='"${dep}_external"'
1859 eval ${ext}_inline_deps='"${dep}_inline"'
1860 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1861 done
1862
1863 aligned_stack_if_any="aarch64 ppc x86"
1864 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1865 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1866 fast_unaligned_if_any="aarch64 ppc x86"
1867 simd_align_16_if_any="altivec neon sse"
1868
1869 # system capabilities
1870 symver_if_any="symver_asm_label symver_gnu_asm"
1871 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1872
1873 # threading support
1874 atomics_gcc_if="sync_val_compare_and_swap"
1875 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1876 atomics_win32_if="MemoryBarrier"
1877 atomics_native_if_any="$ATOMICS_LIST"
1878 w32threads_deps="atomics_native"
1879 threads_if_any="$THREADS_LIST"
1880
1881 # subsystems
1882 dct_select="rdft"
1883 dirac_parse_select="golomb"
1884 error_resilience_select="me_cmp"
1885 faandct_deps="faan fdctdsp"
1886 faanidct_deps="faan idctdsp"
1887 h264dsp_select="startcode"
1888 intrax8_select="blockdsp idctdsp"
1889 mdct_select="fft"
1890 rdft_select="fft"
1891 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1892 mpeg_er_select="error_resilience"
1893 mpegaudio_select="mpegaudiodsp"
1894 mpegaudiodsp_select="dct"
1895 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1896 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1897 vc1dsp_select="h264chroma qpeldsp startcode"
1898
1899 # decoders / encoders
1900 aac_decoder_select="imdct15 mdct sinewin"
1901 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1902 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1903 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1904 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1905 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1906 adpcm_g722_decoder_select="g722dsp"
1907 adpcm_g722_encoder_select="g722dsp"
1908 aic_decoder_select="golomb idctdsp"
1909 alac_encoder_select="lpc"
1910 als_decoder_select="bswapdsp"
1911 amrnb_decoder_select="lsp"
1912 amrwb_decoder_select="lsp"
1913 amv_decoder_select="sp5x_decoder"
1914 ape_decoder_select="bswapdsp"
1915 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1916 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1917 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1918 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1919 atrac1_decoder_select="mdct sinewin"
1920 atrac3_decoder_select="mdct"
1921 atrac3p_decoder_select="mdct sinewin"
1922 bink_decoder_select="blockdsp hpeldsp"
1923 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1924 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1925 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1926 cllc_decoder_select="bswapdsp"
1927 comfortnoise_encoder_select="lpc"
1928 cook_decoder_select="audiodsp mdct sinewin"
1929 cscd_decoder_select="lzo"
1930 cscd_decoder_suggest="zlib"
1931 dca_decoder_select="fmtconvert mdct"
1932 dds_decoder_select="texturedsp"
1933 dnxhd_decoder_select="blockdsp idctdsp"
1934 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1935 dvvideo_decoder_select="dvprofile idctdsp"
1936 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1937 dxa_decoder_deps="zlib"
1938 dxv_decoder_select="lzf texturedsp"
1939 eac3_decoder_select="ac3_decoder"
1940 eac3_encoder_select="ac3_encoder"
1941 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1942 eatgq_decoder_select="aandcttables idctdsp"
1943 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1944 exr_decoder_deps="zlib"
1945 ffv1_decoder_select="golomb rangecoder"
1946 ffv1_encoder_select="rangecoder"
1947 ffvhuff_decoder_select="huffyuv_decoder"
1948 ffvhuff_encoder_select="huffyuv_encoder"
1949 fic_decoder_select="golomb"
1950 flac_decoder_select="flacdsp golomb"
1951 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1952 flashsv_decoder_deps="zlib"
1953 flashsv_encoder_deps="zlib"
1954 flashsv2_decoder_deps="zlib"
1955 flv_decoder_select="h263_decoder"
1956 flv_encoder_select="h263_encoder"
1957 fourxm_decoder_select="blockdsp bswapdsp"
1958 fraps_decoder_select="bswapdsp huffman"
1959 g2m_decoder_deps="zlib"
1960 g2m_decoder_select="blockdsp idctdsp jpegtables"
1961 h261_decoder_select="mpeg_er mpegvideo"
1962 h261_encoder_select="aandcttables mpegvideoenc"
1963 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1964 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1965 h263i_decoder_select="h263_decoder"
1966 h263p_encoder_select="h263_encoder"
1967 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1968 h264_decoder_suggest="error_resilience"
1969 hap_decoder_select="snappy texturedsp"
1970 hap_encoder_deps="libsnappy"
1971 hap_encoder_select="texturedspenc"
1972 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1973 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1974 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1975 iac_decoder_select="imc_decoder"
1976 imc_decoder_select="bswapdsp fft mdct sinewin"
1977 indeo3_decoder_select="hpeldsp"
1978 indeo4_decoder_select="ividsp"
1979 indeo5_decoder_select="ividsp"
1980 interplay_video_decoder_select="hpeldsp"
1981 jpegls_decoder_select="golomb mjpeg_decoder"
1982 jpegls_encoder_select="golomb"
1983 jv_decoder_select="blockdsp"
1984 lagarith_decoder_select="huffyuvdsp"
1985 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1986 loco_decoder_select="golomb"
1987 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1988 metasound_decoder_select="lsp mdct sinewin"
1989 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1990 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1991 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1992 mjpegb_decoder_select="mjpeg_decoder"
1993 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
1994 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
1995 mlp_decoder_select="mlp_parser"
1996 motionpixels_decoder_select="bswapdsp"
1997 mp1_decoder_select="mpegaudio"
1998 mp1float_decoder_select="mpegaudio"
1999 mp2_decoder_select="mpegaudio"
2000 mp2float_decoder_select="mpegaudio"
2001 mp3_decoder_select="mpegaudio"
2002 mp3adu_decoder_select="mpegaudio"
2003 mp3adufloat_decoder_select="mpegaudio"
2004 mp3float_decoder_select="mpegaudio"
2005 mp3on4_decoder_select="mpegaudio"
2006 mp3on4float_decoder_select="mpegaudio"
2007 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2008 mpc8_decoder_select="mpegaudiodsp"
2009 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2010 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2011 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2012 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2013 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2014 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2015 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2016 mpeg4_encoder_select="h263_encoder"
2017 msa1_decoder_select="mss34dsp"
2018 msmpeg4v1_decoder_select="h263_decoder"
2019 msmpeg4v2_decoder_select="h263_decoder"
2020 msmpeg4v2_encoder_select="h263_encoder"
2021 msmpeg4v3_decoder_select="h263_decoder"
2022 msmpeg4v3_encoder_select="h263_encoder"
2023 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2024 mts2_decoder_select="mss34dsp"
2025 mxpeg_decoder_select="mjpeg_decoder"
2026 nellymoser_decoder_select="mdct sinewin"
2027 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2028 nuv_decoder_select="idctdsp lzo"
2029 on2avc_decoder_select="mdct"
2030 opus_decoder_deps="avresample"
2031 opus_decoder_select="imdct15"
2032 png_decoder_deps="zlib"
2033 png_encoder_deps="zlib"
2034 png_encoder_select="huffyuvencdsp"
2035 prores_decoder_select="idctdsp"
2036 prores_encoder_select="fdctdsp"
2037 qcelp_decoder_select="lsp"
2038 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2039 ra_144_encoder_select="audio_frame_queue lpc"
2040 ralf_decoder_select="golomb"
2041 rscc_decoder_deps="zlib"
2042 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2043 rv10_encoder_select="h263_encoder"
2044 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2045 rv20_encoder_select="h263_encoder"
2046 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2047 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2048 screenpresso_decoder_deps="zlib"
2049 shorten_decoder_select="golomb"
2050 sipr_decoder_select="lsp"
2051 sp5x_decoder_select="mjpeg_decoder"
2052 svq1_decoder_select="hpeldsp"
2053 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2054 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2055 svq3_decoder_suggest="zlib"
2056 tak_decoder_select="audiodsp"
2057 tdsc_decoder_deps="zlib"
2058 tdsc_decoder_select="mjpeg_decoder"
2059 theora_decoder_select="vp3_decoder"
2060 thp_decoder_select="mjpeg_decoder"
2061 tiff_decoder_suggest="zlib"
2062 tiff_encoder_suggest="zlib"
2063 truehd_decoder_select="mlp_decoder"
2064 truemotion2_decoder_select="bswapdsp"
2065 truespeech_decoder_select="bswapdsp"
2066 tscc_decoder_deps="zlib"
2067 txd_decoder_select="texturedsp"
2068 twinvq_decoder_select="mdct lsp sinewin"
2069 utvideo_decoder_select="bswapdsp"
2070 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2071 vble_decoder_select="huffyuvdsp"
2072 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2073 vc1image_decoder_select="vc1_decoder"
2074 vorbis_decoder_select="mdct"
2075 vorbis_encoder_select="mdct"
2076 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2077 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2078 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2079 vp6a_decoder_select="vp6_decoder"
2080 vp6f_decoder_select="vp6_decoder"
2081 vp7_decoder_select="h264pred videodsp vp8dsp"
2082 vp8_decoder_select="h264pred videodsp vp8dsp"
2083 vp9_decoder_select="videodsp"
2084 webp_decoder_select="vp8_decoder"
2085 wmapro_decoder_select="mdct sinewin wma_freqs"
2086 wmav1_decoder_select="mdct sinewin wma_freqs"
2087 wmav1_encoder_select="mdct sinewin wma_freqs"
2088 wmav2_decoder_select="mdct sinewin wma_freqs"
2089 wmav2_encoder_select="mdct sinewin wma_freqs"
2090 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2091 wmv1_decoder_select="h263_decoder"
2092 wmv1_encoder_select="h263_encoder"
2093 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2094 wmv2_encoder_select="h263_encoder wmv2dsp"
2095 wmv3_decoder_select="vc1_decoder"
2096 wmv3image_decoder_select="wmv3_decoder"
2097 zerocodec_decoder_deps="zlib"
2098 zlib_decoder_deps="zlib"
2099 zlib_encoder_deps="zlib"
2100 zmbv_decoder_deps="zlib"
2101 zmbv_encoder_deps="zlib"
2102
2103 # hardware accelerators
2104 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2105 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2106 vaapi_deps="va_va_h"
2107 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2108 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2109 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2110
2111 h263_vaapi_hwaccel_deps="vaapi"
2112 h263_vaapi_hwaccel_select="h263_decoder"
2113 h264_d3d11va_hwaccel_deps="d3d11va"
2114 h264_d3d11va_hwaccel_select="h264_decoder"
2115 h264_dxva2_hwaccel_deps="dxva2"
2116 h264_dxva2_hwaccel_select="h264_decoder"
2117 h264_mmal_decoder_deps="mmal"
2118 h264_mmal_decoder_select="mmal"
2119 h264_mmal_hwaccel_deps="mmal"
2120 h264_omx_encoder_deps="omx"
2121 h264_qsv_hwaccel_deps="libmfx"
2122 h264_vaapi_hwaccel_deps="vaapi"
2123 h264_vaapi_hwaccel_select="h264_decoder"
2124 h264_vda_hwaccel_deps="vda"
2125 h264_vda_hwaccel_select="h264_decoder"
2126 h264_vda_old_hwaccel_deps="vda"
2127 h264_vda_old_hwaccel_select="h264_decoder"
2128 h264_vdpau_hwaccel_deps="vdpau"
2129 h264_vdpau_hwaccel_select="h264_decoder"
2130 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2131 hevc_d3d11va_hwaccel_select="hevc_decoder"
2132 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2133 hevc_dxva2_hwaccel_select="hevc_decoder"
2134 hevc_qsv_hwaccel_deps="libmfx"
2135 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2136 hevc_vdpau_hwaccel_select="hevc_decoder"
2137 mpeg1_vdpau_hwaccel_deps="vdpau"
2138 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2139 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2140 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2141 mpeg2_dxva2_hwaccel_deps="dxva2"
2142 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2143 mpeg2_mmal_decoder_deps="mmal"
2144 mpeg2_mmal_decoder_select="mmal"
2145 mpeg2_mmal_hwaccel_deps="mmal"
2146 mpeg2_qsv_hwaccel_deps="libmfx"
2147 mpeg2_vaapi_hwaccel_deps="vaapi"
2148 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2149 mpeg2_vdpau_hwaccel_deps="vdpau"
2150 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2151 mpeg4_omx_encoder_deps="omx"
2152 mpeg4_vaapi_hwaccel_deps="vaapi"
2153 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2154 mpeg4_vdpau_hwaccel_deps="vdpau"
2155 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2156 vc1_d3d11va_hwaccel_deps="d3d11va"
2157 vc1_d3d11va_hwaccel_select="vc1_decoder"
2158 vc1_dxva2_hwaccel_deps="dxva2"
2159 vc1_dxva2_hwaccel_select="vc1_decoder"
2160 vc1_mmal_decoder_deps="mmal"
2161 vc1_mmal_decoder_select="mmal"
2162 vc1_mmal_hwaccel_deps="mmal"
2163 vc1_vaapi_hwaccel_deps="vaapi"
2164 vc1_vaapi_hwaccel_select="vc1_decoder"
2165 vc1_vdpau_hwaccel_deps="vdpau"
2166 vc1_vdpau_hwaccel_select="vc1_decoder"
2167 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2168 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2169 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2170 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2171
2172 # hardware-accelerated codecs
2173 nvenc_deps_any="dlopen LoadLibrary"
2174 nvenc_extralibs='$ldl'
2175 omx_deps="dlopen pthreads"
2176 omx_extralibs='$ldl'
2177 qsvdec_select="qsv"
2178 qsvenc_select="qsv"
2179 vaapi_encode_deps="vaapi"
2180
2181 hwupload_cuda_filter_deps="cuda"
2182 scale_npp_filter_deps="cuda libnpp"
2183
2184 h264_nvenc_encoder_deps="nvenc"
2185 h264_qsv_decoder_deps="libmfx"
2186 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2187 h264_qsv_encoder_deps="libmfx"
2188 h264_qsv_encoder_select="qsvenc"
2189 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2190 h264_vaapi_encoder_select="vaapi_encode golomb"
2191
2192 hevc_nvenc_encoder_deps="nvenc"
2193 hevc_qsv_decoder_deps="libmfx"
2194 hevc_qsv_encoder_deps="libmfx"
2195 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2196 hevc_qsv_encoder_select="qsvenc"
2197 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2198 hevc_vaapi_encoder_select="vaapi_encode golomb"
2199 mpeg2_qsv_decoder_deps="libmfx"
2200 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2201 mpeg2_qsv_encoder_deps="libmfx"
2202 mpeg2_qsv_encoder_select="qsvenc"
2203
2204 nvenc_h264_encoder_deps="nvenc"
2205 nvenc_hevc_encoder_deps="nvenc"
2206
2207 # parsers
2208 h264_parser_select="golomb h264dsp"
2209 hevc_parser_select="golomb"
2210 mpegvideo_parser_select="mpegvideo"
2211 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2212 vc1_parser_select="vc1dsp"
2213
2214 # bitstream_filters
2215 mjpeg2jpeg_bsf_select="jpegtables"
2216
2217 # external libraries
2218 libdcadec_decoder_deps="libdcadec"
2219 libfaac_encoder_deps="libfaac"
2220 libfaac_encoder_select="audio_frame_queue"
2221 libfdk_aac_decoder_deps="libfdk_aac"
2222 libfdk_aac_encoder_deps="libfdk_aac"
2223 libfdk_aac_encoder_select="audio_frame_queue"
2224 libgsm_decoder_deps="libgsm"
2225 libgsm_encoder_deps="libgsm"
2226 libgsm_ms_decoder_deps="libgsm"
2227 libgsm_ms_encoder_deps="libgsm"
2228 libilbc_decoder_deps="libilbc"
2229 libilbc_encoder_deps="libilbc"
2230 libkvazaar_encoder_deps="libkvazaar"
2231 libmp3lame_encoder_deps="libmp3lame"
2232 libmp3lame_encoder_select="audio_frame_queue"
2233 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2234 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2235 libopencore_amrnb_encoder_select="audio_frame_queue"
2236 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2237 libopenh264_encoder_deps="libopenh264"
2238 libopenjpeg_decoder_deps="libopenjpeg"
2239 libopenjpeg_encoder_deps="libopenjpeg"
2240 libopus_decoder_deps="libopus"
2241 libopus_encoder_deps="libopus"
2242 libopus_encoder_select="audio_frame_queue"
2243 libschroedinger_decoder_deps="libschroedinger"
2244 libschroedinger_encoder_deps="libschroedinger"
2245 libspeex_decoder_deps="libspeex"
2246 libspeex_encoder_deps="libspeex"
2247 libspeex_encoder_select="audio_frame_queue"
2248 libtheora_encoder_deps="libtheora"
2249 libtwolame_encoder_deps="libtwolame"
2250 libvo_aacenc_encoder_deps="libvo_aacenc"
2251 libvo_aacenc_encoder_select="audio_frame_queue"
2252 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2253 libvorbis_encoder_deps="libvorbis"
2254 libvorbis_encoder_select="audio_frame_queue"
2255 libvpx_vp8_decoder_deps="libvpx"
2256 libvpx_vp8_encoder_deps="libvpx"
2257 libvpx_vp9_decoder_deps="libvpx"
2258 libvpx_vp9_encoder_deps="libvpx"
2259 libwavpack_encoder_deps="libwavpack"
2260 libwebp_encoder_deps="libwebp"
2261 libx262_encoder_deps="libx262"
2262 libx264_encoder_deps="libx264"
2263 libx265_encoder_deps="libx265"
2264 libxavs_encoder_deps="libxavs"
2265 libxvid_encoder_deps="libxvid"
2266
2267 # demuxers / muxers
2268 ac3_demuxer_select="ac3_parser"
2269 asf_demuxer_select="riffdec"
2270 asf_muxer_select="riffenc"
2271 asf_stream_muxer_select="asf_muxer"
2272 avi_demuxer_select="iso_media riffdec"
2273 avi_muxer_select="riffenc"
2274 avisynth_demuxer_deps="avisynth"
2275 avisynth_demuxer_select="riffdec"
2276 caf_demuxer_select="iso_media riffdec"
2277 dash_muxer_select="mp4_muxer"
2278 dirac_demuxer_select="dirac_parser"
2279 dv_demuxer_select="dvprofile"
2280 dv_muxer_select="dvprofile"
2281 dxa_demuxer_select="riffdec"
2282 eac3_demuxer_select="ac3_parser"
2283 f4v_muxer_select="mov_muxer"
2284 flac_demuxer_select="flac_parser"
2285 hds_muxer_select="flv_muxer"
2286 hls_muxer_select="mpegts_muxer"
2287 ipod_muxer_select="mov_muxer"
2288 ismv_muxer_select="mov_muxer"
2289 matroska_audio_muxer_select="matroska_muxer"
2290 matroska_demuxer_select="iso_media riffdec"
2291 matroska_demuxer_suggest="bzlib lzo zlib"
2292 matroska_muxer_select="iso_media riffenc"
2293 mmf_muxer_select="riffenc"
2294 mov_demuxer_select="iso_media riffdec"
2295 mov_demuxer_suggest="zlib"
2296 mov_muxer_select="iso_media riffenc rtpenc_chain"
2297 mp3_demuxer_select="mpegaudio_parser"
2298 mp4_muxer_select="mov_muxer"
2299 mpegts_demuxer_select="iso_media"
2300 mpegts_muxer_select="adts_muxer latm_muxer"
2301 mpegtsraw_demuxer_select="mpegts_demuxer"
2302 mxf_d10_muxer_select="mxf_muxer"
2303 nut_muxer_select="riffenc"
2304 nuv_demuxer_select="riffdec"
2305 oga_muxer_select="ogg_muxer"
2306 ogg_demuxer_select="dirac_parse"
2307 opus_muxer_select="ogg_muxer"
2308 psp_muxer_select="mov_muxer"
2309 rtp_demuxer_select="sdp_demuxer"
2310 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2311 rtsp_demuxer_select="http_protocol rtpdec"
2312 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2313 sap_demuxer_select="sdp_demuxer"
2314 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2315 sdp_demuxer_select="rtpdec"
2316 smoothstreaming_muxer_select="ismv_muxer"
2317 spdif_muxer_select="aac_parser"
2318 spx_muxer_select="ogg_muxer"
2319 swf_demuxer_suggest="zlib"
2320 tak_demuxer_select="tak_parser"
2321 tg2_muxer_select="mov_muxer"
2322 tgp_muxer_select="mov_muxer"
2323 w64_demuxer_select="wav_demuxer"
2324 wav_demuxer_select="riffdec"
2325 wav_muxer_select="riffenc"
2326 webm_muxer_select="iso_media riffenc"
2327 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2328 wtv_demuxer_select="mpegts_demuxer riffdec"
2329 xmv_demuxer_select="riffdec"
2330 xwma_demuxer_select="riffdec"
2331
2332 # indevs / outdevs
2333 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2334 alsa_outdev_deps="alsa_asoundlib_h"
2335 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2336 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2337 dv1394_indev_deps="dv1394"
2338 dv1394_indev_select="dv_demuxer"
2339 fbdev_indev_deps="linux_fb_h"
2340 jack_indev_deps="jack_jack_h"
2341 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2342 libcdio_indev_deps="libcdio"
2343 libdc1394_indev_deps="libdc1394"
2344 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2345 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2346 pulse_indev_deps="libpulse"
2347 sndio_indev_deps="sndio_h"
2348 sndio_outdev_deps="sndio_h"
2349 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2350 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2351 vfwcap_indev_extralibs="-lavicap32"
2352 x11grab_indev_deps="x11grab"
2353 x11grab_xcb_indev_deps="libxcb"
2354
2355 # protocols
2356 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2357 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2358 ffrtmpcrypt_protocol_select="tcp_protocol"
2359 ffrtmphttp_protocol_deps="!librtmp_protocol"
2360 ffrtmphttp_protocol_select="http_protocol"
2361 gopher_protocol_select="network"
2362 http_protocol_select="tcp_protocol"
2363 httpproxy_protocol_select="tcp_protocol"
2364 https_protocol_select="tls_protocol"
2365 icecast_protocol_select="http_protocol"
2366 librtmp_protocol_deps="librtmp"
2367 librtmpe_protocol_deps="librtmp"
2368 librtmps_protocol_deps="librtmp"
2369 librtmpt_protocol_deps="librtmp"
2370 librtmpte_protocol_deps="librtmp"
2371 mmsh_protocol_select="http_protocol"
2372 mmst_protocol_select="network"
2373 rtmp_protocol_deps="!librtmp_protocol"
2374 rtmp_protocol_select="tcp_protocol"
2375 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2376 rtmps_protocol_deps="!librtmp_protocol"
2377 rtmps_protocol_select="tls_protocol"
2378 rtmpt_protocol_select="ffrtmphttp_protocol"
2379 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2380 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2381 rtp_protocol_select="udp_protocol"
2382 sctp_protocol_deps="struct_sctp_event_subscribe"
2383 sctp_protocol_select="network"
2384 srtp_protocol_select="rtp_protocol srtp"
2385 tcp_protocol_select="network"
2386 tls_gnutls_protocol_deps="gnutls"
2387 tls_gnutls_protocol_select="tcp_protocol"
2388 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2389 tls_openssl_protocol_select="tcp_protocol"
2390 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2391 udp_protocol_select="network"
2392 unix_protocol_deps="sys_un_h"
2393 unix_protocol_select="network"
2394
2395 # filters
2396 blackframe_filter_deps="gpl"
2397 boxblur_filter_deps="gpl"
2398 bs2b_filter_deps="libbs2b"
2399 cropdetect_filter_deps="gpl"
2400 delogo_filter_deps="gpl"
2401 drawtext_filter_deps="libfreetype"
2402 frei0r_filter_deps="frei0r dlopen"
2403 frei0r_filter_extralibs='$ldl'
2404 frei0r_src_filter_deps="frei0r dlopen"
2405 frei0r_src_filter_extralibs='$ldl'
2406 hqdn3d_filter_deps="gpl"
2407 interlace_filter_deps="gpl"
2408 ocv_filter_deps="libopencv"
2409 resample_filter_deps="avresample"
2410 scale_filter_deps="swscale"
2411 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2412
2413 # examples
2414 avcodec_example_deps="avcodec avutil"
2415 filter_audio_example_deps="avfilter avutil"
2416 metadata_example_deps="avformat avutil"
2417 output_example_deps="avcodec avformat avutil swscale"
2418 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2419 transcode_aac_example_deps="avcodec avformat avresample"
2420
2421 # libraries, in linking order
2422 avcodec_deps="avutil"
2423 avdevice_deps="avformat avcodec avutil"
2424 avfilter_deps="avutil"
2425 avformat_deps="avcodec avutil"
2426 avresample_deps="avutil"
2427 swscale_deps="avutil"
2428
2429 # programs
2430 avconv_deps="avcodec avfilter avformat avresample swscale"
2431 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2432 fps_filter null_filter resample_filter scale_filter
2433 setpts_filter trim_filter"
2434 avplay_deps="avcodec avfilter avformat avresample sdl"
2435 avplay_libs='$sdl_libs'
2436 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2437 avprobe_deps="avcodec avformat"
2438
2439 # documentation
2440 pod2man_deps="doc"
2441 texi2html_deps="doc"
2442
2443 # default parameters
2444
2445 logfile="config.log"
2446
2447 # installation paths
2448 prefix_default="/usr/local"
2449 bindir_default='${prefix}/bin'
2450 datadir_default='${prefix}/share/avconv'
2451 docdir_default='${prefix}/share/doc/libav'
2452 incdir_default='${prefix}/include'
2453 libdir_default='${prefix}/lib'
2454 mandir_default='${prefix}/share/man'
2455 shlibdir_default="$libdir_default"
2456
2457 # toolchain
2458 ar_default="ar"
2459 cc_default="gcc"
2460 host_cc_default="gcc"
2461 cp_f="cp -f"
2462 ln_s="ln -s -f"
2463 nm_default="nm -g"
2464 objformat="elf"
2465 pkg_config_default=pkg-config
2466 ranlib="ranlib"
2467 strip="strip"
2468 yasmexe="yasm"
2469
2470 # machine
2471 arch_default=$(uname -m)
2472 cpu="generic"
2473 intrinsics="none"
2474
2475 # OS
2476 target_os_default=$(tolower $(uname -s))
2477 host_os=$target_os_default
2478
2479 # configurable options
2480 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2481
2482 enable asm
2483 enable debug
2484 enable doc
2485 enable faan faandct faanidct
2486 enable optimizations
2487 enable safe_bitstream_reader
2488 enable static
2489 enable swscale_alpha
2490 enable valgrind_backtrace
2491
2492 # By default, enable only those hwaccels that have no external dependencies.
2493 enable d3d11va dxva2 vda vdpau
2494
2495 # build settings
2496 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2497 LIBPREF="lib"
2498 LIBSUF=".a"
2499 FULLNAME='$(NAME)$(BUILDSUF)'
2500 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2501 SLIBPREF="lib"
2502 SLIBSUF=".so"
2503 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2504 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2505 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2506 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2507 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2508 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2509
2510 asflags_filter=echo
2511 cflags_filter=echo
2512 ldflags_filter=echo
2513
2514 AS_C='-c'
2515 AS_O='-o $@'
2516 CC_C='-c'
2517 CC_E='-E -o $@'
2518 CC_O='-o $@'
2519 OBJCC_C='-c'
2520 OBJCC_E='-E -o $@'
2521 OBJCC_O='-o $@'
2522 LD_O='-o $@'
2523 LD_LIB='-l%'
2524 LD_PATH='-L'
2525 HOSTCC_C='-c'
2526 HOSTCC_E='-E -o $@'
2527 HOSTCC_O='-o $@'
2528 HOSTLD_O='-o $@'
2529
2530 host_libs='-lm'
2531 host_cflags_filter=echo
2532 host_ldflags_filter=echo
2533
2534 target_path='$(CURDIR)'
2535
2536 # since the object filename is not given with the -MM flag, the compiler
2537 # is only able to print the basename, and we must add the path ourselves
2538 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2539 DEPFLAGS='-MM'
2540
2541 # find source path
2542 if test -f configure; then
2543 source_path=.
2544 else
2545 source_path=$(cd $(dirname "$0"); pwd)
2546 echo "$source_path" | grep -q '[[:blank:]]' &&
2547 die "Out of tree builds are impossible with whitespace in source path."
2548 test -e "$source_path/config.h" &&
2549 die "Out of tree builds are impossible with config.h in source dir."
2550 fi
2551
2552 for v in "$@"; do
2553 r=${v#*=}
2554 l=${v%"$r"}
2555 r=$(sh_quote "$r")
2556 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2557 done
2558
2559 find_things(){
2560 thing=$1
2561 pattern=$2
2562 file=$source_path/$3
2563 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2564 }
2565
2566 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2567 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2568 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2569 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2570 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2571 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2572 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2573 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2574 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2575
2576 find_things_extern(){
2577 thing=$1
2578 pattern=$2
2579 file=$source_path/$3
2580 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2581 }
2582
2583 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2584 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2585
2586 ALL_COMPONENTS="
2587 $BSF_LIST
2588 $DECODER_LIST
2589 $DEMUXER_LIST
2590 $ENCODER_LIST
2591 $FILTER_LIST
2592 $HWACCEL_LIST
2593 $INDEV_LIST
2594 $MUXER_LIST
2595 $OUTDEV_LIST
2596 $PARSER_LIST
2597 $PROTOCOL_LIST
2598 "
2599
2600 for n in $COMPONENT_LIST; do
2601 v=$(toupper ${n%s})_LIST
2602 eval enable \$$v
2603 eval ${n}_if_any="\$$v"
2604 done
2605
2606 enable $ARCH_EXT_LIST
2607
2608 die_unknown(){
2609 echo "Unknown option \"$1\"."
2610 echo "See $0 --help for available options."
2611 exit 1
2612 }
2613
2614 print_3_columns() {
2615 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2616 }
2617
2618 show_list() {
2619 suffix=_$1
2620 shift
2621 echo $* | sed s/$suffix//g | print_3_columns
2622 exit 0
2623 }
2624
2625 rand_list(){
2626 IFS=', '
2627 set -- $*
2628 unset IFS
2629 for thing; do
2630 comp=${thing%:*}
2631 prob=${thing#$comp}
2632 prob=${prob#:}
2633 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2634 echo "prob ${prob:-0.5}"
2635 printf '%s\n' $comp
2636 done
2637 }
2638
2639 do_random(){
2640 action=$1
2641 shift
2642 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2643 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2644 }
2645
2646 for opt do
2647 optval="${opt#*=}"
2648 case "$opt" in
2649 --extra-ldflags=*)
2650 add_ldflags $optval
2651 ;;
2652 --extra-ldexeflags=*)
2653 add_ldexeflags $optval
2654 ;;
2655 --extra-libs=*)
2656 add_extralibs $optval
2657 ;;
2658 --disable-devices)
2659 disable $INDEV_LIST $OUTDEV_LIST
2660 ;;
2661 --enable-debug=*)
2662 debuglevel="$optval"
2663 ;;
2664 --disable-programs)
2665 disable $PROGRAM_LIST
2666 ;;
2667 --disable-everything)
2668 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2669 ;;
2670 --disable-all)
2671 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2672 disable $LIBRARY_LIST $PROGRAM_LIST doc
2673 ;;
2674 --enable-random|--disable-random)
2675 action=${opt%%-random}
2676 do_random ${action#--} $COMPONENT_LIST
2677 ;;
2678 --enable-random=*|--disable-random=*)
2679 action=${opt%%-random=*}
2680 do_random ${action#--} $optval
2681 ;;
2682 --enable-*=*|--disable-*=*)
2683 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2684 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2685 eval list=\$$(toupper $thing)_LIST
2686 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2687 $action $(filter "$name" $list)
2688 ;;
2689 --enable-avserver|--disable-avserver*)
2690 warn "avserver has been removed, the ${opt} option is only"\
2691 "provided for compatibility and will be removed in the future"
2692 ;;
2693 --enable-?*|--disable-?*)
2694 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2695 if is_in $option $COMPONENT_LIST; then
2696 test $action = disable && action=unset
2697 eval $action \$$(toupper ${option%s})_LIST
2698 elif is_in $option $CMDLINE_SELECT; then
2699 $action $option
2700 else
2701 die_unknown $opt
2702 fi
2703 ;;
2704 --list-*)
2705 NAME="${opt#--list-}"
2706 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2707 NAME=${NAME%s}
2708 eval show_list $NAME \$$(toupper $NAME)_LIST
2709 ;;
2710 --help|-h) show_help
2711 ;;
2712 *)
2713 optname="${opt%%=*}"
2714 optname="${optname#--}"
2715 optname=$(echo "$optname" | sed 's/-/_/g')
2716 if is_in $optname $CMDLINE_SET; then
2717 eval $optname='$optval'
2718 elif is_in $optname $CMDLINE_APPEND; then
2719 append $optname "$optval"
2720 else
2721 die_unknown $opt
2722 fi
2723 ;;
2724 esac
2725 done
2726
2727 for e in $env; do
2728 eval "export $e"
2729 done
2730
2731 disabled logging && logfile=/dev/null
2732
2733 # Disable all the library-specific components if the library itself
2734 # is disabled, see AVCODEC_LIST and following _LIST variables.
2735
2736 disable_components(){
2737 disabled ${1} && disable $(
2738 eval components="\$$(toupper ${1})_COMPONENTS"
2739 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2740 )
2741 }
2742
2743 map 'disable_components $v' $LIBRARY_LIST
2744
2745 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2746 set >> $logfile
2747
2748 case "$toolchain" in
2749 *-asan)
2750 cc_default="${toolchain%-asan}"
2751 add_cflags -fsanitize=address
2752 add_ldflags -fsanitize=address
2753 ;;
2754 *-msan)
2755 cc_default="${toolchain%-msan}"
2756 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2757 add_ldflags -fsanitize=memory
2758 ;;
2759 *-tsan)
2760 cc_default="${toolchain%-tsan}"
2761 add_cflags -fsanitize=thread -pie
2762 add_ldflags -fsanitize=thread -pie
2763 case "$toolchain" in
2764 gcc-tsan)
2765 add_cflags -fPIC
2766 add_ldflags -fPIC
2767 ;;
2768 esac
2769 ;;
2770 *-usan)
2771 cc_default="${toolchain%-usan}"
2772 add_cflags -fsanitize=undefined
2773 add_ldflags -fsanitize=undefined
2774 case "$toolchain" in
2775 clang-usan)
2776 add_cflags -O1
2777 ;;
2778 esac
2779 ;;
2780 valgrind-*)
2781 target_exec_default="valgrind"
2782 case "$toolchain" in
2783 valgrind-massif)
2784 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2785 ;;
2786 valgrind-memcheck)
2787 target_exec_args="--track-origins=yes --leak-check=full"
2788 ;;
2789 esac
2790 ;;
2791 msvc)
2792 # Check whether the current MSVC version needs the C99 converter.
2793 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2794 # support enough of C99 to build libav. Default to the new
2795 # behaviour if the regexp was unable to match anything, since this
2796 # successfully parses the version number of existing supported
2797 # versions that require the converter (MSVC 2010 and 2012).
2798 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2799 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2800 cc_default="cl"
2801 else
2802 cc_default="c99wrap cl"
2803 fi
2804 ld_default="$source_path/compat/windows/mslink"
2805 nm_default="dumpbin -symbols"
2806 ar_default="lib"
2807 case "$arch" in
2808 arm*)
2809 as_default="armasm"
2810 ;;
2811 esac
2812 target_os_default="win32"
2813 # Use a relative path for TMPDIR. This makes sure all the
2814 # ffconf temp files are written with a relative path, avoiding
2815 # issues with msys/win32 path conversion for MSVC parameters
2816 # such as -Fo<file> or -out:<file>.
2817 TMPDIR=.
2818 ;;
2819 icl)
2820 cc_default="icl"
2821 ld_default="xilink"
2822 nm_default="dumpbin -symbols"
2823 ar_default="xilib"
2824 target_os_default="win32"
2825 TMPDIR=.
2826 ;;
2827 gcov)
2828 add_cflags -fprofile-arcs -ftest-coverage
2829 add_ldflags -fprofile-arcs -ftest-coverage
2830 ;;
2831 llvm-cov)
2832 add_cflags -fprofile-arcs -ftest-coverage
2833 add_ldflags --coverage
2834 ;;
2835 hardened)
2836 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2837 add_cflags -fno-strict-overflow -fstack-protector-all
2838 add_ldflags -Wl,-z,relro -Wl,-z,now
2839 ;;
2840 ?*)
2841 die "Unknown toolchain $toolchain"
2842 ;;
2843 esac
2844
2845 test -n "$cross_prefix" && enable cross_compile
2846
2847 if enabled cross_compile; then
2848 test -n "$arch" && test -n "$target_os" ||
2849 die "Must specify target arch and OS when cross-compiling"
2850 fi
2851
2852 ar_default="${cross_prefix}${ar_default}"
2853 cc_default="${cross_prefix}${cc_default}"
2854 occ_default="${cross_prefix}${occ_default}"
2855 nm_default="${cross_prefix}${nm_default}"
2856 pkg_config_default="${cross_prefix}${pkg_config_default}"
2857 ranlib="${cross_prefix}${ranlib}"
2858 strip="${cross_prefix}${strip}"
2859
2860 sysinclude_default="${sysroot}/usr/include"
2861
2862 set_default arch cc pkg_config sysinclude target_exec target_os
2863 enabled cross_compile || host_cc_default=$cc
2864 set_default host_cc
2865
2866 if ! $pkg_config --version >/dev/null 2>&1; then
2867 warn "$pkg_config not found, library detection may fail."
2868 pkg_config=false
2869 fi
2870
2871 exesuf() {
2872 case $1 in
2873 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2874 esac
2875 }
2876
2877 EXESUF=$(exesuf $target_os)
2878 HOSTEXESUF=$(exesuf $host_os)
2879
2880 # set temporary file name
2881 : ${TMPDIR:=$TEMPDIR}
2882 : ${TMPDIR:=$TMP}
2883 : ${TMPDIR:=/tmp}
2884
2885 if ! check_cmd mktemp -u XXXXXX; then
2886 # simple replacement for missing mktemp
2887 # NOT SAFE FOR GENERAL USE
2888 mktemp(){
2889 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2890 }
2891 fi
2892
2893 tmpfile(){
2894 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2895 (set -C; exec > $tmp) 2>/dev/null ||
2896 die "Unable to create temporary file in $TMPDIR."
2897 append TMPFILES $tmp
2898 eval $1=$tmp
2899 }
2900
2901 trap 'rm -f -- $TMPFILES' EXIT
2902
2903 tmpfile TMPASM .asm
2904 tmpfile TMPC .c
2905 tmpfile TMPE $EXESUF
2906 tmpfile TMPH .h
2907 tmpfile TMPO .o
2908 tmpfile TMPS .S
2909 tmpfile TMPSH .sh
2910 tmpfile TMPV .ver
2911
2912 unset -f mktemp
2913
2914 chmod +x $TMPE
2915
2916 # make sure we can execute files in $TMPDIR
2917 cat > $TMPSH 2>> $logfile <<EOF
2918 #! /bin/sh
2919 EOF
2920 chmod +x $TMPSH >> $logfile 2>&1
2921 if ! $TMPSH >> $logfile 2>&1; then
2922 cat <<EOF
2923 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2924 variable to another directory and make sure that it is not mounted noexec.
2925 EOF
2926 die "Sanity test failed."
2927 fi
2928
2929 armasm_flags(){
2930 for flag; do
2931 case $flag in
2932 # Filter out MSVC cl.exe options from cflags that shouldn't
2933 # be passed to gas-preprocessor
2934 -M[TD]*) ;;
2935 *) echo $flag ;;
2936 esac
2937 done
2938 }
2939
2940 ccc_flags(){
2941 for flag; do
2942 case $flag in
2943 -std=c99) echo -c99 ;;
2944 -mcpu=*) echo -arch ${flag#*=} ;;
2945 -mieee) echo -ieee ;;
2946 -O*|-fast) echo $flag ;;
2947 -fno-math-errno) echo -assume nomath_errno ;;
2948 -g) echo -g3 ;;
2949 -Wall) echo -msg_enable level2 ;;
2950 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2951 -Wl,*) echo $flag ;;
2952 -f*|-W*) ;;
2953 *) echo $flag ;;
2954 esac
2955 done
2956 }
2957
2958 cparser_flags(){
2959 for flag; do
2960 case $flag in
2961 -Wno-switch) echo -Wno-switch-enum ;;
2962 -Wno-format-zero-length) ;;
2963 -Wdisabled-optimization) ;;
2964 -Wno-pointer-sign) echo -Wno-other ;;
2965 *) echo $flag ;;
2966 esac
2967 done
2968 }
2969
2970 msvc_common_flags(){
2971 for flag; do
2972 case $flag in
2973 # In addition to specifying certain flags under the compiler
2974 # specific filters, they must be specified here as well or else the
2975 # generic catch all at the bottom will print the original flag.
2976 -Wall) ;;
2977 -std=c99) ;;
2978 # Common flags
2979 -fomit-frame-pointer) ;;
2980 -g) echo -Z7 ;;
2981 -fno-math-errno) ;;
2982 -fno-common) ;;
2983 -fno-signed-zeros) ;;
2984 -fPIC) ;;
2985 -mthumb) ;;
2986 -march=*) ;;
2987 -lz) echo zlib.lib ;;
2988 -lavifil32) echo vfw32.lib ;;
2989 -lavicap32) echo vfw32.lib user32.lib ;;
2990 -lx264) echo libx264.lib ;;
2991 -l*) echo ${flag#-l}.lib ;;
2992 -L*) echo -libpath:${flag#-L} ;;
2993 *) echo $flag ;;
2994 esac
2995 done
2996 }
2997
2998 msvc_flags(){
2999 msvc_common_flags "$@"
3000 for flag; do
3001 case $flag in
3002 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3003 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3004 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3005 -wd4273 -wd4554 -wd4701 ;;
3006 esac
3007 done
3008 }
3009
3010 icl_flags(){
3011 msvc_common_flags "$@"
3012 for flag; do
3013 case $flag in
3014 # Despite what Intel's documentation says -Wall, which is supported
3015 # on Windows, does enable remarks so disable them here.
3016 -Wall) echo $flag -Qdiag-disable:remark ;;
3017 -std=c99) echo -Qstd=c99 ;;
3018 esac
3019 done
3020 }
3021
3022 pgi_flags(){
3023 for flag; do
3024 case $flag in
3025 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3026 -fomit-frame-pointer) echo -Mnoframe ;;
3027 -g) echo -gopt ;;
3028 *) echo $flag ;;
3029 esac
3030 done
3031 }
3032
3033 suncc_flags(){
3034 for flag; do
3035 case $flag in
3036 -march=*|-mcpu=*)
3037 case "${flag#*=}" in
3038 native) echo -xtarget=native ;;
3039 v9|niagara) echo -xarch=sparc ;;
3040 ultrasparc) echo -xarch=sparcvis ;;
3041 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3042 i586|pentium) echo -xchip=pentium ;;
3043 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3044 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3045 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3046 pentium4*) echo -xtarget=pentium4 ;;
3047 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3048 *-sse3) echo -xarch=sse3 ;;
3049 core2) echo -xarch=ssse3 -xchip=core2 ;;
3050 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3051 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3052 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3053 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3054 k8|opteron|athlon64|athlon-fx)
3055 echo -xarch=sse2a ;;
3056 athlon*) echo -xarch=pentium_proa ;;
3057 esac
3058 ;;
3059 -std=c99) echo -xc99 ;;
3060 -fomit-frame-pointer) echo -xregs=frameptr ;;
3061 -fPIC) echo -KPIC -xcode=pic32 ;;
3062 -W*,*) echo $flag ;;
3063 -f*-*|-W*|-mimpure-text) ;;
3064 -shared) echo -G ;;
3065 *) echo $flag ;;
3066 esac
3067 done
3068 }
3069
3070 tms470_flags(){
3071 for flag; do
3072 case $flag in
3073 -march=*|-mcpu=*)
3074 case "${flag#*=}" in
3075 armv7-a|cortex-a*) echo -mv=7a8 ;;
3076 armv7-r|cortex-r*) echo -mv=7r4 ;;
3077 armv7-m|cortex-m*) echo -mv=7m3 ;;
3078 armv6*|arm11*) echo -mv=6 ;;
3079 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3080 echo -mv=5e ;;
3081 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3082 esac
3083 ;;
3084 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3085 -mfpu=vfp) echo --float_support=vfpv2 ;;
3086 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3087 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3088 -msoft-float) echo --float_support=vfplib ;;
3089 -O[0-3]|-mf=*) echo $flag ;;
3090 -g) echo -g -mn ;;
3091 -pds=*) echo $flag ;;
3092 -D*|-I*) echo $flag ;;
3093 --gcc|--abi=*) echo $flag ;;
3094 -me) echo $flag ;;
3095 esac
3096 done
3097 }
3098
3099 probe_cc(){
3100 pfx=$1
3101 _cc=$2
3102
3103 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3104 unset _ld_o _ldflags _ld_lib _ld_path
3105 unset _depflags _DEPCMD _DEPFLAGS
3106 _flags_filter=echo
3107
3108 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3109 _type=llvm_gcc
3110 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3111 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3112 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3113 _cflags_speed='-O3'
3114 _cflags_size='-Os'
3115 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3116 _type=gcc
3117 gcc_version=$($_cc --version | head -n1)
3118 gcc_basever=$($_cc -dumpversion)
3119 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3120 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3121 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3122 if ! $_cc -dumpversion | grep -q '^2\.'; then
3123 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3124 fi
3125 _cflags_speed='-O3'
3126 _cflags_size='-Os'
3127 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3128 _type=icc
3129 _ident=$($_cc --version | head -n1)
3130 _depflags='-MMD'
3131 _cflags_speed='-O3'
3132 _cflags_size='-Os'
3133 _cflags_noopt='-O1'
3134 elif $_cc -v 2>&1 | grep -q xlc; then
3135 _type=xlc
3136 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3137 _cflags_speed='-O5'
3138 _cflags_size='-O5 -qcompact'
3139 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3140 _type=ccc
3141 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3142 _DEPFLAGS='-M'
3143 _cflags_speed='-fast'
3144 _cflags_size='-O1'
3145 _flags_filter=ccc_flags
3146 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3147 test -d "$sysroot" || die "No valid sysroot specified."
3148 _type=armcc
3149 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3150 armcc_conf="$PWD/armcc.conf"
3151 $_cc --arm_linux_configure \
3152 --arm_linux_config_file="$armcc_conf" \
3153 --configure_sysroot="$sysroot" \
3154 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3155 die "Error creating armcc configuration file."
3156 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3157 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3158 as_default="${cross_prefix}gcc"
3159 _depflags='-MMD'
3160 _cflags_speed='-O3'
3161 _cflags_size='-Os'
3162 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3163 _type=tms470
3164 _ident=$($_cc -version | head -n1 | tr -s ' ')
3165 _flags='--gcc --abi=eabi -me'
3166 _cc_e='-ppl -fe=$@'
3167 _cc_o='-fe=$@'
3168 _depflags='-ppa -ppd=$(@:.o=.d)'
3169 _cflags_speed='-O3 -mf=5'
3170 _cflags_size='-O3 -mf=2'
3171 _flags_filter=tms470_flags
3172 elif $_cc -v 2>&1 | grep -q clang; then
3173 _type=clang
3174 _ident=$($_cc --version 2>/dev/null | head -n1)
3175 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3176 _cflags_speed='-O3'
3177 _cflags_size='-Os'
3178 elif $_cc -V 2>&1 | grep -q Sun; then
3179 _type=suncc
3180 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3181 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3182 _DEPFLAGS='-xM1 -xc99'
3183 _ldflags='-std=c99'
3184 _cflags_speed='-O5'
3185 _cflags_size='-O5 -xspace'
3186 _flags_filter=suncc_flags
3187 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3188 _type=pathscale
3189 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3190 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3191 _cflags_speed='-O2'
3192 _cflags_size='-Os'
3193 _flags_filter='filter_out -Wdisabled-optimization'
3194 elif $_cc -v 2>&1 | grep -q Open64; then
3195 _type=open64
3196 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3197 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3198 _cflags_speed='-O2'
3199 _cflags_size='-Os'
3200 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3201 elif $_cc -V 2>&1 | grep -q Portland; then
3202 _type=pgi
3203 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3204 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3205 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3206 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3207 _cflags_noopt="-O1"
3208 _flags_filter=pgi_flags
3209 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3210 _type=armasm
3211 _ident=$($_cc | head -n1)
3212 # 4509: "This form of conditional instruction is deprecated"
3213 _flags="-nologo -ignore 4509"
3214 _flags_filter=armasm_flags
3215 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3216 _type=msvc
3217 _ident=$($_cc 2>&1 | head -n1)
3218 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3219 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3220 _cflags_speed="-O2"
3221 _cflags_size="-O1"
3222 if $_cc -nologo- 2>&1 | grep -q Linker; then
3223 _ld_o='-out:$@'
3224 else
3225 _ld_o='-Fe$@'
3226 fi
3227 _cc_o='-Fo$@'
3228 _cc_e='-P -Fi$@'
3229 _flags_filter=msvc_flags
3230 _ld_lib='lib%.a'
3231 _ld_path='-libpath:'
3232 _flags='-nologo'
3233 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3234 elif $_cc 2>&1 | grep -q Intel; then
3235 _type=icl
3236 _ident=$($_cc 2>&1 | head -n1)
3237 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3238 # Not only is O3 broken on 13.x+ but it is slower on all previous
3239 # versions (tested) as well.
3240 _cflags_speed="-O2"
3241 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3242 if $_cc 2>&1 | grep -q Linker; then
3243 _ld_o='-out:$@'
3244 else
3245 _ld_o='-Fe$@'
3246 fi
3247 _cc_o='-Fo$@'
3248 _cc_e='-P'
3249 _flags_filter=icl_flags
3250 _ld_lib='lib%.a'
3251 _ld_path='-libpath:'
3252 # -Qdiag-error to make icl error when seeing certain unknown arguments
3253 _flags='-nologo -Qdiag-error:4044,10157'
3254 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3255 # with MSVC which enables it by default.
3256 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3257 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3258 _type=cparser
3259 _ident=$($_cc --version | head -n1)
3260 _depflags='-MMD'
3261 _cflags_speed='-O4'
3262 _cflags_size='-O2'
3263 _flags_filter=cparser_flags
3264 fi
3265
3266 eval ${pfx}_type=\$_type
3267 eval ${pfx}_ident=\$_ident
3268 }
3269
3270 set_ccvars(){
3271 eval ${1}_C=\${_cc_c-\${${1}_C}}
3272 eval ${1}_E=\${_cc_e-\${${1}_E}}
3273 eval ${1}_O=\${_cc_o-\${${1}_O}}
3274
3275 if [ -n "$_depflags" ]; then
3276 eval ${1}_DEPFLAGS=\$_depflags
3277 else
3278 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3279 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3280 eval DEP${1}FLAGS=\$_flags
3281 fi
3282 }
3283
3284 probe_cc cc "$cc"
3285 cflags_filter=$_flags_filter
3286 cflags_speed=$_cflags_speed
3287 cflags_size=$_cflags_size
3288 cflags_noopt=$_cflags_noopt
3289 add_cflags $_flags $_cflags
3290 cc_ldflags=$_ldflags
3291 set_ccvars CC
3292
3293 probe_cc hostcc "$host_cc"
3294 host_cflags_filter=$_flags_filter
3295 add_host_cflags $_flags $_cflags
3296 set_ccvars HOSTCC
3297
3298 test -n "$cc_type" && enable $cc_type ||
3299 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3300
3301 : ${as_default:=$cc}
3302 : ${objcc_default:=$cc}
3303 : ${dep_cc_default:=$cc}
3304 : ${ld_default:=$cc}
3305 : ${host_ld_default:=$host_cc}
3306 set_default ar as objcc dep_cc ld host_ld
3307
3308 probe_cc as "$as"
3309 asflags_filter=$_flags_filter
3310 add_asflags $_flags $_cflags
3311 set_ccvars AS
3312
3313 probe_cc objcc "$objcc"
3314 objcflags_filter=$_flags_filter
3315 add_objcflags $_flags $_cflags
3316 set_ccvars OBJC
3317
3318 probe_cc ld "$ld"
3319 ldflags_filter=$_flags_filter
3320 add_ldflags $_flags $_ldflags
3321 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3322 LD_O=${_ld_o-$LD_O}
3323 LD_LIB=${_ld_lib-$LD_LIB}
3324 LD_PATH=${_ld_path-$LD_PATH}
3325
3326 probe_cc hostld "$host_ld"
3327 host_ldflags_filter=$_flags_filter
3328 add_host_ldflags $_flags $_ldflags
3329 HOSTLD_O=${_ld_o-$HOSTLD_O}
3330
3331 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3332 probe_cc depcc "$dep_cc"
3333 CCDEP=${_DEPCMD:-$DEPCMD}
3334 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3335 DEPCCFLAGS=$_flags
3336 fi
3337
3338 if $ar 2>&1 | grep -q Microsoft; then
3339 arflags="-nologo"
3340 ar_o='-out:$@'
3341 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3342 arflags="rq"
3343 ar_o='$@'
3344 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3345 arflags='-Xany -r -c'
3346 ar_o='$@'
3347 else
3348 arflags="rc"
3349 ar_o='$@'
3350 fi
3351
3352 add_cflags $extra_cflags
3353 add_objcflags $extra_objcflags
3354 add_asflags $extra_cflags
3355
3356 if test -n "$sysroot"; then
3357 case "$cc_type" in
3358 gcc|llvm_gcc|clang)
3359 add_cppflags --sysroot="$sysroot"
3360 add_ldflags --sysroot="$sysroot"
3361 ;;
3362 tms470)
3363 add_cppflags -I"$sysinclude"
3364 add_ldflags --sysroot="$sysroot"
3365 ;;
3366 esac
3367 fi
3368
3369 if test "$cpu" = host; then
3370 enabled cross_compile &&
3371 die "--cpu=host makes no sense when cross-compiling."
3372
3373 case "$cc_type" in
3374 gcc|llvm_gcc)
3375 check_native(){
3376 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3377 sed -n "/cc1.*$1=/{
3378 s/.*$1=\\([^ ]*\\).*/\\1/
3379 p
3380 q
3381 }" $TMPE
3382 }
3383 cpu=$(check_native -march || check_native -mcpu)
3384 ;;
3385 esac
3386
3387 test "${cpu:-host}" = host &&
3388 die "--cpu=host not supported with compiler $cc"
3389 fi
3390
3391 # Deal with common $arch aliases
3392 case "$arch" in
3393 aarch64|arm64)
3394 arch="aarch64"
3395 ;;
3396 arm*)
3397 arch="arm"
3398 ;;
3399 mips*|IP*)
3400 case "$arch" in
3401 *el)
3402 add_cppflags -EL
3403 add_ldflags -EL
3404 ;;
3405 *eb)
3406 add_cppflags -EB
3407 add_ldflags -EB
3408 ;;
3409 esac
3410 arch="mips"
3411 ;;
3412 parisc*|hppa*)
3413 arch="parisc"
3414 ;;
3415 "Power Macintosh"|ppc*|powerpc*)
3416 arch="ppc"
3417 ;;
3418 s390|s390x)
3419 arch="s390"
3420 ;;
3421 sh4|sh)
3422 arch="sh4"
3423 ;;
3424 sun4u|sparc*)
3425 arch="sparc"
3426 ;;
3427 tilegx|tile-gx)
3428 arch="tilegx"
3429 ;;
3430 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3431 arch="x86"
3432 ;;
3433 esac
3434
3435 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3436 enable $arch
3437
3438 # Add processor-specific flags
3439 if enabled aarch64; then
3440
3441 case $cpu in
3442 armv*)
3443 cpuflags="-march=$cpu"
3444 ;;
3445 *)
3446 cpuflags="-mcpu=$cpu"
3447 ;;
3448 esac
3449
3450 elif enabled alpha; then
3451
3452 cpuflags="-mcpu=$cpu"
3453
3454 elif enabled arm; then
3455
3456 check_arm_arch() {
3457 check_cpp_condition stddef.h \
3458 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3459 $cpuflags
3460 }
3461
3462 probe_arm_arch() {
3463 if check_arm_arch 4; then echo armv4
3464 elif check_arm_arch 4T; then echo armv4t
3465 elif check_arm_arch 5; then echo armv5
3466 elif check_arm_arch 5E; then echo armv5e
3467 elif check_arm_arch 5T; then echo armv5t
3468 elif check_arm_arch 5TE; then echo armv5te
3469 elif check_arm_arch 5TEJ; then echo armv5te
3470 elif check_arm_arch 6; then echo armv6
3471 elif check_arm_arch 6J; then echo armv6j
3472 elif check_arm_arch 6K; then echo armv6k
3473 elif check_arm_arch 6Z; then echo armv6z
3474 elif check_arm_arch 6ZK; then echo armv6zk
3475 elif check_arm_arch 6T2; then echo armv6t2
3476 elif check_arm_arch 7; then echo armv7
3477 elif check_arm_arch 7A 7_A; then echo armv7-a
3478 elif check_arm_arch 7S; then echo armv7-a
3479 elif check_arm_arch 7R 7_R; then echo armv7-r
3480 elif check_arm_arch 7M 7_M; then echo armv7-m
3481 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3482 elif check_arm_arch 8A 8_A; then echo armv8-a
3483 fi
3484 }
3485
3486 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3487
3488 case $cpu in
3489 armv*)
3490 cpuflags="-march=$cpu"
3491 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3492 ;;
3493 *)
3494 cpuflags="-mcpu=$cpu"
3495 case $cpu in
3496 cortex-a*) subarch=armv7a ;;
3497 cortex-r*) subarch=armv7r ;;
3498 cortex-m*) enable thumb; subarch=armv7m ;;
3499 arm11*) subarch=armv6 ;;
3500 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3501 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3502 *) subarch=$(probe_arm_arch) ;;
3503 esac
3504 ;;
3505 esac
3506
3507 case "$subarch" in
3508 armv5t*) enable fast_clz ;;
3509 armv[6-8]*) enable fast_clz fast_unaligned ;;
3510 esac
3511
3512 elif enabled avr32; then
3513
3514 case $cpu in
3515 ap7[02]0[0-2])
3516 subarch="avr32_ap"
3517 cpuflags="-mpart=$cpu"
3518 ;;
3519 ap)
3520 subarch="avr32_ap"
3521 cpuflags="-march=$cpu"
3522 ;;
3523 uc3[ab]*)
3524 subarch="avr32_uc"
3525 cpuflags="-mcpu=$cpu"
3526 ;;
3527 uc)
3528 subarch="avr32_uc"
3529 cpuflags="-march=$cpu"
3530 ;;
3531 esac
3532
3533 elif enabled bfin; then
3534
3535 cpuflags="-mcpu=$cpu"
3536
3537 elif enabled mips; then
3538
3539 cpuflags="-march=$cpu"
3540
3541 elif enabled ppc; then
3542
3543 disable ldbrx
3544
3545 case $(tolower $cpu) in
3546 601|ppc601|powerpc601)
3547 cpuflags="-mcpu=601"
3548 disable altivec
3549 ;;
3550 603*|ppc603*|powerpc603*)
3551 cpuflags="-mcpu=603"
3552 disable altivec
3553 ;;
3554 604*|ppc604*|powerpc604*)
3555 cpuflags="-mcpu=604"
3556 disable altivec
3557 ;;
3558 g3|75*|ppc75*|powerpc75*)
3559 cpuflags="-mcpu=750"
3560 disable altivec
3561 ;;
3562 g4|745*|ppc745*|powerpc745*)
3563 cpuflags="-mcpu=7450"
3564 disable vsx
3565 ;;
3566 74*|ppc74*|powerpc74*)
3567 cpuflags="-mcpu=7400"
3568 disable vsx
3569 ;;
3570 g5|970|ppc970|powerpc970)
3571 cpuflags="-mcpu=970"
3572 disable vsx
3573 ;;
3574 power[3-6]*)
3575 cpuflags="-mcpu=$cpu"
3576 disable vsx
3577 ;;
3578 power[7-8]*)
3579 cpuflags="-mcpu=$cpu"
3580 enable ldbrx
3581 ;;
3582 cell)
3583 cpuflags="-mcpu=cell"
3584 enable ldbrx
3585 disable vsx
3586 ;;
3587 e500mc)
3588 cpuflags="-mcpu=e500mc"
3589 disable altivec
3590 ;;
3591 e500v2)
3592 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3593 disable altivec
3594 disable dcbzl
3595 ;;
3596 e500)
3597 cpuflags="-mcpu=8540 -mhard-float"
3598 disable altivec
3599 disable dcbzl
3600 ;;
3601 esac
3602
3603 elif enabled sparc; then
3604
3605 case $cpu in
3606 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3607 cpuflags="-mcpu=$cpu"
3608 ;;
3609 ultrasparc*|niagara[234])
3610 cpuflags="-mcpu=$cpu"
3611 ;;
3612 esac
3613
3614 elif enabled x86; then
3615
3616 case $cpu in
3617 i[345]86|pentium)
3618 cpuflags="-march=$cpu"
3619 disable i686
3620 disable mmx
3621 ;;
3622 # targets that do NOT support nopl and conditional mov (cmov)
3623 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3624 cpuflags="-march=$cpu"
3625 disable i686
3626 ;;
3627 # targets that do support nopl and conditional mov (cmov)
3628 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3629 cpuflags="-march=$cpu"
3630 enable i686
3631 enable fast_cmov
3632 ;;
3633 # targets that do support conditional mov but on which it's slow
3634 pentium4|pentium4m|prescott|nocona)
3635 cpuflags="-march=$cpu"
3636 enable i686
3637 disable fast_cmov
3638 ;;
3639 esac
3640
3641 fi
3642
3643 if [ "$cpu" != generic ]; then
3644 add_cflags $cpuflags
3645 add_asflags $cpuflags
3646 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3647 fi
3648
3649 # compiler sanity check
3650 check_exec <<EOF
3651 int main(void){ return 0; }
3652 EOF
3653 if test "$?" != 0; then
3654 echo "$cc is unable to create an executable file."
3655 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3656 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3657 echo "Only do this if you know what cross compiling means."
3658 fi
3659 die "C compiler test failed."
3660 fi
3661
3662 add_cppflags -D_ISOC99_SOURCE
3663 check_cflags -std=c99
3664 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3665 #include <stdlib.h>
3666 EOF
3667 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3668 #include <stdlib.h>
3669 EOF
3670
3671 add_host_cppflags -D_ISOC99_SOURCE
3672 check_host_cflags -std=c99
3673 check_host_cflags -Wall
3674 check_host_cflags -O3
3675
3676 check_64bit(){
3677 arch32=$1
3678 arch64=$2
3679 expr=$3
3680 check_code cc "" "int test[2*($expr) - 1]" &&
3681 subarch=$arch64 || subarch=$arch32
3682 }
3683
3684 case "$arch" in
3685 aarch64|alpha|ia64)
3686 spic=$shared
3687 ;;
3688 mips)
3689 check_64bit mips mips64 '_MIPS_SIM > 1'
3690 spic=$shared
3691 ;;
3692 parisc)
3693 check_64bit parisc parisc64 'sizeof(void *) > 4'
3694 spic=$shared
3695 ;;
3696 ppc)
3697 check_64bit ppc ppc64 'sizeof(void *) > 4'
3698 spic=$shared
3699 ;;
3700 s390)
3701 check_64bit s390 s390x 'sizeof(void *) > 4'
3702 spic=$shared
3703 ;;
3704 sparc)
3705 check_64bit sparc sparc64 'sizeof(void *) > 4'
3706 spic=$shared
3707 ;;
3708 x86)
3709 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3710 if test "$subarch" = "x86_64"; then
3711 spic=$shared
3712 fi
3713 ;;
3714 esac
3715
3716 enable $subarch
3717 enabled spic && enable_weak pic
3718
3719 # OS specific
3720 case $target_os in
3721 aix)
3722 SHFLAGS=-shared
3723 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3724 enabled shared && add_ldflags -Wl,-brtl
3725 ;;
3726 android)
3727 disable symver
3728 enable section_data_rel_ro
3729 SLIB_INSTALL_NAME='$(SLIBNAME)'
3730 SLIB_INSTALL_LINKS=
3731 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3732 ;;
3733 haiku)
3734 prefix_default="/boot/common"
3735 network_extralibs="-lnetwork"
3736 host_libs=
3737 ;;
3738 sunos)
3739 SHFLAGS='-shared -Wl,-h,$$(@F)'
3740 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3741 network_extralibs="-lsocket -lnsl"
3742 # When using suncc to build, the Solaris linker will mark
3743 # an executable with each instruction set encountered by
3744 # the Solaris assembler. As our libraries contain their own
3745 # guards for processor-specific code, instead suppress
3746 # generation of the HWCAPS ELF section on Solaris x86 only.
3747 enabled_all suncc x86 &&
3748 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3749 add_ldflags -Wl,-M,mapfile
3750 nm_default='nm -P -g'
3751 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3752 ;;
3753 netbsd)
3754 disable symver
3755 oss_indev_extralibs="-lossaudio"
3756 oss_outdev_extralibs="-lossaudio"
3757 ;;
3758 openbsd|bitrig)
3759 disable symver
3760 SHFLAGS='-shared'
3761 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3762 SLIB_INSTALL_LINKS=
3763 oss_indev_extralibs="-lossaudio"
3764 oss_outdev_extralibs="-lossaudio"
3765 ;;
3766 dragonfly)
3767 disable symver
3768 ;;
3769 freebsd)
3770 ;;
3771 bsd/os)
3772 add_extralibs -lpoll -lgnugetopt
3773 ;;
3774 darwin)
3775 enabled ppc && add_asflags -force_cpusubtype_ALL
3776 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3777 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3778 add_ldflags -Wl,-dynamic,-search_paths_first
3779 SLIBSUF=".dylib"
3780 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3781 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3782 objformat="macho"
3783 enabled x86_64 && objformat="macho64"
3784 enabled_any pic shared ||
3785 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3786 check_header dispatch/dispatch.h &&
3787 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3788 ;;
3789 msys*)
3790 die "Native MSYS builds are discouraged, please use the MINGW environment."
3791 ;;
3792 mingw32*|mingw64*)
3793 if test $target_os = "mingw32ce"; then
3794 disable network
3795 else
3796 target_os=mingw32
3797 fi
3798 LIBTARGET=i386
3799 if enabled x86_64; then
3800 LIBTARGET="i386:x86-64"
3801 elif enabled arm; then
3802 LIBTARGET=arm-wince
3803 fi
3804 check_ldflags -Wl,--nxcompat
3805 check_ldflags -Wl,--dynamicbase
3806 shlibdir_default="$bindir_default"
3807 SLIBPREF=""
3808 SLIBSUF=".dll"
3809 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3810 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3811 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3812 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3813 SLIB_INSTALL_LINKS=
3814 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3815 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3816 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3817 objformat="win32"
3818 dlltool="${cross_prefix}dlltool"
3819 ranlib=:
3820 enable dos_paths
3821 ;;
3822 win32|win64)
3823 disable symver
3824 if enabled shared; then
3825 # Link to the import library instead of the normal static library
3826 # for shared libs.
3827 LD_LIB='%.lib'
3828 # Cannot build both shared and static libs with MSVC or icl.
3829 disable static
3830 fi
3831 shlibdir_default="$bindir_default"
3832 SLIBPREF=""
3833 SLIBSUF=".dll"
3834 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3835 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3836 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3837 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3838 SLIB_INSTALL_LINKS=
3839 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3840 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3841 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3842 objformat="win32"
3843 ranlib=:
3844 enable dos_paths
3845 ;;
3846 cygwin*)
3847 target_os=cygwin
3848 shlibdir_default="$bindir_default"
3849 SLIBPREF="cyg"
3850 SLIBSUF=".dll"
3851 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3852 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3853 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3854 SLIB_INSTALL_LINKS=
3855 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3856 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3857 objformat="win32"
3858 enable dos_paths
3859 ;;
3860 *-dos|freedos|opendos)
3861 network_extralibs="-lsocket"
3862 objformat="coff"
3863 enable dos_paths
3864 add_cppflags -U__STRICT_ANSI__
3865 ;;
3866 linux)
3867 enable dv1394
3868 enable section_data_rel_ro
3869 ;;
3870 irix*)
3871 target_os=irix
3872 ranlib="echo ignoring ranlib"
3873 ;;
3874 os/2*)
3875 ln_s="cp -f"
3876 objformat="aout"
3877 add_cppflags -D_GNU_SOURCE
3878 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3879 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3880 LIBSUF="_s.a"
3881 SLIBPREF=""
3882 SLIBSUF=".dll"
3883 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3884 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3885 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3886 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3887 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3888 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3889 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3890 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3891 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3892 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3893 enable dos_paths
3894 ;;
3895 gnu/kfreebsd)
3896 add_cppflags -D_BSD_SOURCE
3897 ;;
3898 gnu)
3899 ;;
3900 qnx)
3901 add_cppflags -D_QNX_SOURCE
3902 network_extralibs="-lsocket"
3903 ;;
3904 symbian)
3905 SLIBSUF=".dll"
3906 enable dos_paths
3907 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3908 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3909 add_ldflags -Wl,--target1-abs,--no-undefined \
3910 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3911 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3912 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3913 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3914 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3915 ;;
3916 osf1)
3917 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3918 ;;
3919 minix)
3920 ;;
3921 plan9)
3922 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3923 -D_REENTRANT_SOURCE \
3924 -D_RESEARCH_SOURCE \
3925 -DFD_SETSIZE=96 \
3926 -DHAVE_SOCK_OPTS
3927 add_compat strtod.o strtod=avpriv_strtod
3928 network_extralibs='-lbsd'
3929 exeobjs=compat/plan9/main.o
3930 cp_f='cp'
3931 ;;
3932 none)
3933 ;;
3934 *)
3935 die "Unknown OS '$target_os'."
3936 ;;
3937 esac
3938
3939 # determine libc flavour
3940
3941 probe_libc(){
3942 pfx=$1
3943 pfx_no_=${pfx%_}
3944 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3945 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3946 eval ${pfx}libc_type=uclibc
3947 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3948 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3949 eval ${pfx}libc_type=glibc
3950 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3951 # MinGW headers can be installed on Cygwin, so check for newlib first.
3952 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3953 eval ${pfx}libc_type=newlib
3954 add_${pfx}cppflags -U__STRICT_ANSI__
3955 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3956 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3957 eval ${pfx}libc_type=mingw64
3958 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3959 eval test \$${pfx_no_}cc_type = "gcc" &&
3960 add_${pfx}cppflags -D__printf__=__gnu_printf__
3961 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3962 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3963 eval ${pfx}libc_type=mingw32
3964 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3965 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3966 die "ERROR: MinGW32 runtime version must be >= 3.15."
3967 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3968 eval test \$${pfx_no_}cc_type = "gcc" &&
3969 add_${pfx}cppflags -D__printf__=__gnu_printf__
3970 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3971 eval ${pfx}libc_type=msvcrt
3972 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3973 if [ "$pfx" = host_ ]; then
3974 add_host_cppflags -Dsnprintf=_snprintf
3975 else
3976 add_compat strtod.o strtod=avpriv_strtod
3977 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3978 _snprintf=avpriv_snprintf \
3979 vsnprintf=avpriv_vsnprintf
3980 fi
3981 fi
3982 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3983 # 0x601 by default unless something else is set by the user.
3984 # This can easily lead to us detecting functions only present
3985 # in such new versions and producing binaries requiring windows 7.0.
3986 # Therefore explicitly set the default to XP unless the user has
3987 # set something else on the command line.
3988 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3989 # family. For these cases, configure is free to use any functions
3990 # found in the SDK headers by default. (Alternatively, we could force
3991 # _WIN32_WINNT to 0x0602 in that case.)
3992 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3993 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3994 #ifdef WINAPI_FAMILY
3995 #include <winapifamily.h>
3996 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3997 #error not desktop
3998 #endif
3999 #endif
4000 EOF
4001 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4002 eval ${pfx}libc_type=klibc
4003 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4004 eval ${pfx}libc_type=bionic
4005 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4006 eval ${pfx}libc_type=solaris
4007 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4008 else
4009 eval ${pfx}libc_type=default
4010 add_${pfx}cppflags -D_DEFAULT_SOURCE
4011 fi
4012 }
4013
4014 probe_libc
4015 test -n "$libc_type" && enable libc_$libc_type
4016 probe_libc host_
4017 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4018
4019 case $libc_type in
4020 bionic)
4021 add_compat strtod.o strtod=avpriv_strtod
4022 ;;
4023 esac
4024
4025 # hacks for compiler/libc/os combinations
4026
4027 if enabled_all tms470 libc_glibc; then
4028 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4029 add_cppflags -D__USER_LABEL_PREFIX__=
4030 add_cppflags -D__builtin_memset=memset
4031 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4032 add_cflags -pds=48 # incompatible redefinition of macro
4033 fi
4034
4035 if enabled_all ccc libc_glibc; then
4036 add_ldflags -Wl,-z,now # calls to libots crash without this
4037 fi
4038
4039 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4040 add_cppflags '-I\$(SRC_PATH)/compat/float'
4041
4042 esc(){
4043 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4044 }
4045
4046 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4047
4048 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4049
4050 set_default $PATHS_LIST
4051 set_default nm
4052
4053 # we need to build at least one lib type
4054 if ! enabled_any static shared; then
4055 cat <<EOF
4056 At least one library type must be built.
4057 Specify --enable-static to build the static libraries or --enable-shared to
4058 build the shared libraries as well. To only build the shared libraries specify
4059 --disable-static in addition to --enable-shared.
4060 EOF
4061 exit 1
4062 fi
4063
4064 die_license_disabled() {
4065 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4066 }
4067
4068 die_license_disabled gpl libcdio
4069 die_license_disabled gpl libx264
4070 die_license_disabled gpl libx265
4071 die_license_disabled gpl libxavs
4072 die_license_disabled gpl libxvid
4073 die_license_disabled gpl x11grab
4074
4075 die_license_disabled nonfree cuda
4076 die_license_disabled nonfree libfaac
4077 die_license_disabled nonfree libfdk_aac
4078 die_license_disabled nonfree libnpp
4079 die_license_disabled nonfree openssl
4080
4081 die_license_disabled version3 libopencore_amrnb
4082 die_license_disabled version3 libopencore_amrwb
4083 die_license_disabled version3 libvo_aacenc
4084 die_license_disabled version3 libvo_amrwbenc
4085
4086 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4087
4088 disabled optimizations || check_cflags -fomit-frame-pointer
4089
4090 enable_weak_pic() {
4091 disabled pic && return
4092 enable pic
4093 add_cppflags -DPIC
4094 case "$target_os" in
4095 mingw*|cygwin*)
4096 ;;
4097 *)
4098 add_cflags -fPIC
4099 ;;
4100 esac
4101 add_asflags -fPIC
4102 }
4103
4104 enabled pic && enable_weak_pic
4105
4106 check_cc <<EOF || die "Symbol mangling check failed."
4107 int ff_extern;
4108 EOF
4109 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4110 extern_prefix=${sym%%ff_extern*}
4111
4112 check_cc <<EOF && enable_weak inline_asm
4113 void foo(void) { __asm__ volatile ("" ::); }
4114 EOF
4115
4116 _restrict=
4117 for restrict_keyword in restrict __restrict__ __restrict; do
4118 check_cc <<EOF && _restrict=$restrict_keyword && break
4119 void foo(char * $restrict_keyword p);
4120 EOF
4121 done
4122
4123 check_cc <<EOF && enable pragma_deprecated
4124 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4125 EOF
4126
4127 check_cc <<EOF && enable attribute_packed
4128 struct { int x; } __attribute__((packed)) x;
4129 EOF
4130
4131 check_cc <<EOF && enable attribute_may_alias
4132 union { int x; } __attribute__((may_alias)) x;
4133 EOF
4134
4135 check_cc <<EOF || die "endian test failed"
4136 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4137 EOF
4138 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4139
4140 check_gas() {
4141 log "check_gas using '$as' as AS"
4142 # :vararg is used on aarch64, arm and ppc altivec
4143 check_as <<EOF || return 1
4144 .macro m n, y:vararg=0
4145 \n: .int \y
4146 .endm
4147 m x
4148 EOF
4149 # .altmacro is only used in arm asm
4150 ! enabled arm || check_as <<EOF || return 1
4151 .altmacro
4152 EOF
4153 enable gnu_as
4154 return 0
4155 }
4156
4157 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4158 nogas=:
4159 enabled_any arm aarch64 && nogas=die
4160 enabled_all ppc altivec && nogas=warn
4161 as_noop=-v
4162
4163 case $as_type in
4164 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4165 gcc) gaspp_as_type=gas ;;
4166 *) gaspp_as_type=$as_type ;;
4167 esac
4168
4169 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4170
4171 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4172 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4173
4174 if ! check_gas ; then
4175 as=${gas:=$as}
4176 check_gas || \
4177 $nogas "GNU assembler not found, install/update gas-preprocessor"
4178 fi
4179
4180 check_as <<EOF && enable as_func
4181 .func test
4182 .endfunc
4183 EOF
4184 fi
4185
4186 check_inline_asm inline_asm_labels '"1:\n"'
4187
4188 if enabled aarch64; then
4189 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4190 # internal assembler in clang 3.3 does not support this instruction
4191 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4192 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4193
4194 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4195
4196 elif enabled alpha; then
4197
4198 check_cflags -mieee
4199
4200 elif enabled arm; then
4201
4202 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4203 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4204 enabled thumb && check_cflags -mthumb || check_cflags -marm
4205
4206 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4207 enable vfp_args
4208 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4209 enable vfp_args
4210 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4211 case "${cross_prefix:-$cc}" in
4212 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4213 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4214 __asm__ (".eabi_attribute 28, 1");
4215 int main(void) { return 0; }
4216 EOF
4217 esac
4218 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4219 fi
4220
4221 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4222 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4223 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4224 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4225 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4226 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4227
4228 [ $target_os = linux ] || [ $target_os = android ] ||
4229 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4230 $ARCH_EXT_LIST_ARM
4231
4232 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4233
4234 check_as <<EOF && enable as_dn_directive
4235 ra .dn d0.i16
4236 .unreq ra
4237 EOF
4238
4239 # llvm's integrated assembler supports .object_arch from llvm 3.5
4240 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4241 .object_arch armv4
4242 EOF
4243
4244 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4245
4246 elif enabled mips; then
4247
4248 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4249
4250 # make sure that only an instruction set is enabled
4251 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4252
4253 if enabled mips64; then
4254 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4255 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4256 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4257 else
4258 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4259 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4260 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4261 fi
4262
4263 elif enabled parisc; then
4264
4265 if enabled gcc; then
4266 case $($cc -dumpversion) in
4267 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4268 esac
4269 fi
4270
4271 elif enabled ppc; then
4272
4273 enable local_aligned_8 local_aligned_16
4274
4275 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4276 check_inline_asm ibm_asm '"add 0, 0, 0"'
4277 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4278 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4279
4280 # AltiVec flags: The FSF version of GCC differs from the Apple version
4281 if enabled altivec; then
4282 check_cflags -maltivec -mabi=altivec &&
4283 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4284 check_cflags -faltivec
4285
4286 # check if our compiler supports Motorola AltiVec C API
4287 check_cc <<EOF || disable altivec
4288 $inc_altivec_h
4289 int main(void) {
4290 vector signed int v1 = (vector signed int) { 0 };
4291 vector signed int v2 = (vector signed int) { 1 };
4292 v1 = vec_add(v1, v2);
4293 return 0;
4294 }
4295 EOF
4296
4297 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4298 fi
4299
4300 if enabled vsx; then
4301 check_cflags -mvsx &&
4302 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4303 fi
4304
4305 if enabled power8; then
4306 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4307 fi
4308
4309 elif enabled x86; then
4310
4311 check_builtin rdtsc intrin.h "__rdtsc()"
4312 check_builtin mm_empty mmintrin.h "_mm_empty()"
4313
4314 enable local_aligned_8 local_aligned_16
4315
4316 # check whether EBP is available on x86
4317 # As 'i' is stored on the stack, this program will crash
4318 # if the base pointer is used to access it because the
4319 # base pointer is cleared in the inline assembly code.
4320 check_exec_crash <<EOF && enable ebp_available
4321 volatile int i=0;
4322 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4323 return i;
4324 EOF
4325
4326 # check whether EBX is available on x86
4327 check_inline_asm ebx_available '""::"b"(0)' &&
4328 check_inline_asm ebx_available '"":::"%ebx"'
4329
4330 # check whether xmm clobbers are supported
4331 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4332
4333 # check whether binutils is new enough to compile SSSE3/MMXEXT
4334 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4335 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4336
4337 if ! disabled_any asm mmx yasm; then
4338 if check_cmd $yasmexe --version; then
4339 enabled x86_64 && yasm_extra="-m amd64"
4340 yasm_debug="-g dwarf2"
4341 elif check_cmd nasm -v; then
4342 yasmexe=nasm
4343 yasm_debug="-g -F dwarf"
4344 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4345 fi
4346
4347 YASMFLAGS="-f $objformat $yasm_extra"
4348 enabled pic && append YASMFLAGS "-DPIC"
4349 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4350 case "$objformat" in
4351 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4352 esac
4353
4354 check_yasm "movbe ecx, [5]" && enable yasm ||
4355 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4356 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4357 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4358 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4359 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4360 check_yasm "CPU amdnop" || disable cpunop
4361 fi
4362
4363 case "$cpu" in
4364 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4365 disable fast_clz
4366 ;;
4367 esac
4368
4369 fi
4370
4371 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4372
4373 check_ldflags -Wl,--as-needed
4374
4375 if check_func dlopen; then
4376 ldl=
4377 elif check_func dlopen -ldl; then
4378 ldl=-ldl
4379 fi
4380
4381 if ! disabled network; then
4382 check_f