build: Add a new component for H.264 parsing code
[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 h264parse
1690 h264pred
1691 h264qpel
1692 hpeldsp
1693 huffman
1694 huffyuvdsp
1695 huffyuvencdsp
1696 idctdsp
1697 iirfilter
1698 imdct15
1699 intrax8
1700 iso_media
1701 ividsp
1702 jpegtables
1703 libx262
1704 lgplv3
1705 lpc
1706 lzf
1707 me_cmp
1708 mpeg_er
1709 mpegaudio
1710 mpegaudiodsp
1711 mpegvideo
1712 mpegvideoenc
1713 mss34dsp
1714 pixblockdsp
1715 qpeldsp
1716 qsv
1717 qsvdec
1718 qsvenc
1719 rangecoder
1720 riffdec
1721 riffenc
1722 rtpdec
1723 rtpenc_chain
1724 rv34dsp
1725 sinewin
1726 snappy
1727 srtp
1728 startcode
1729 texturedsp
1730 texturedspenc
1731 tpeldsp
1732 vaapi_encode
1733 vc1dsp
1734 videodsp
1735 vp3dsp
1736 vp56dsp
1737 vp8dsp
1738 wma_freqs
1739 wmv2dsp
1740 "
1741
1742 CMDLINE_SELECT="
1743 $ARCH_EXT_LIST
1744 $CONFIG_LIST
1745 $HAVE_LIST_CMDLINE
1746 $THREADS_LIST
1747 asm
1748 cross_compile
1749 debug
1750 extra_warnings
1751 logging
1752 lto
1753 optimizations
1754 rpath
1755 "
1756
1757 PATHS_LIST="
1758 bindir
1759 datadir
1760 docdir
1761 incdir
1762 libdir
1763 mandir
1764 prefix
1765 shlibdir
1766 "
1767
1768 CMDLINE_SET="
1769 $PATHS_LIST
1770 ar
1771 arch
1772 as
1773 build_suffix
1774 cc
1775 objcc
1776 cpu
1777 cross_prefix
1778 custom_allocator
1779 dep_cc
1780 env
1781 extra_version
1782 host_cc
1783 host_cflags
1784 host_ld
1785 host_ldflags
1786 host_libs
1787 host_os
1788 ld
1789 logfile
1790 malloc_prefix
1791 nm
1792 optflags
1793 pkg_config
1794 pkg_config_flags
1795 random_seed
1796 samples
1797 sysinclude
1798 sysroot
1799 target_exec
1800 target_os
1801 target_path
1802 target_samples
1803 toolchain
1804 "
1805
1806 CMDLINE_APPEND="
1807 extra_cflags
1808 extra_objcflags
1809 host_cppflags
1810 "
1811
1812 # code dependency declarations
1813
1814 # architecture extensions
1815
1816 armv5te_deps="arm"
1817 armv6_deps="arm"
1818 armv6t2_deps="arm"
1819 armv8_deps="aarch64"
1820 neon_deps_any="aarch64 arm"
1821 intrinsics_neon_deps="neon"
1822 vfp_deps_any="aarch64 arm"
1823 vfpv3_deps="vfp"
1824
1825 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1826
1827 altivec_deps="ppc"
1828 ppc4xx_deps="ppc"
1829 vsx_deps="altivec"
1830 power8_deps="vsx"
1831
1832 cpunop_deps="i686"
1833 x86_64_select="i686"
1834 x86_64_suggest="fast_cmov"
1835
1836 amd3dnow_deps="mmx"
1837 amd3dnowext_deps="amd3dnow"
1838 i686_deps="x86"
1839 mmx_deps="x86"
1840 mmxext_deps="mmx"
1841 sse_deps="mmxext"
1842 sse2_deps="sse"
1843 sse3_deps="sse2"
1844 ssse3_deps="sse3"
1845 sse4_deps="ssse3"
1846 sse42_deps="sse4"
1847 avx_deps="sse42"
1848 xop_deps="avx"
1849 fma3_deps="avx"
1850 fma4_deps="avx"
1851 avx2_deps="avx"
1852
1853 mmx_external_deps="yasm"
1854 mmx_inline_deps="inline_asm"
1855 mmx_suggest="mmx_external mmx_inline"
1856
1857 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1858 eval dep=\$${ext}_deps
1859 eval ${ext}_external_deps='"${dep}_external"'
1860 eval ${ext}_inline_deps='"${dep}_inline"'
1861 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1862 done
1863
1864 aligned_stack_if_any="aarch64 ppc x86"
1865 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1866 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1867 fast_unaligned_if_any="aarch64 ppc x86"
1868 simd_align_16_if_any="altivec neon sse"
1869
1870 # system capabilities
1871 symver_if_any="symver_asm_label symver_gnu_asm"
1872 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1873
1874 # threading support
1875 atomics_gcc_if="sync_val_compare_and_swap"
1876 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1877 atomics_win32_if="MemoryBarrier"
1878 atomics_native_if_any="$ATOMICS_LIST"
1879 w32threads_deps="atomics_native"
1880 threads_if_any="$THREADS_LIST"
1881
1882 # subsystems
1883 dct_select="rdft"
1884 dirac_parse_select="golomb"
1885 error_resilience_select="me_cmp"
1886 faandct_deps="faan fdctdsp"
1887 faanidct_deps="faan idctdsp"
1888 h264dsp_select="startcode"
1889 intrax8_select="blockdsp idctdsp"
1890 mdct_select="fft"
1891 rdft_select="fft"
1892 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1893 mpeg_er_select="error_resilience"
1894 mpegaudio_select="mpegaudiodsp"
1895 mpegaudiodsp_select="dct"
1896 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1897 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1898 vc1dsp_select="h264chroma qpeldsp startcode"
1899
1900 # decoders / encoders
1901 aac_decoder_select="imdct15 mdct sinewin"
1902 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1903 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1904 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1905 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1906 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1907 adpcm_g722_decoder_select="g722dsp"
1908 adpcm_g722_encoder_select="g722dsp"
1909 aic_decoder_select="golomb idctdsp"
1910 alac_encoder_select="lpc"
1911 als_decoder_select="bswapdsp"
1912 amrnb_decoder_select="lsp"
1913 amrwb_decoder_select="lsp"
1914 amv_decoder_select="sp5x_decoder"
1915 ape_decoder_select="bswapdsp"
1916 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1917 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1918 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1919 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1920 atrac1_decoder_select="mdct sinewin"
1921 atrac3_decoder_select="mdct"
1922 atrac3p_decoder_select="mdct sinewin"
1923 bink_decoder_select="blockdsp hpeldsp"
1924 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1925 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1926 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1927 cllc_decoder_select="bswapdsp"
1928 comfortnoise_encoder_select="lpc"
1929 cook_decoder_select="audiodsp mdct sinewin"
1930 cscd_decoder_select="lzo"
1931 cscd_decoder_suggest="zlib"
1932 dca_decoder_select="fmtconvert mdct"
1933 dds_decoder_select="texturedsp"
1934 dnxhd_decoder_select="blockdsp idctdsp"
1935 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1936 dvvideo_decoder_select="dvprofile idctdsp"
1937 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1938 dxa_decoder_deps="zlib"
1939 dxv_decoder_select="lzf texturedsp"
1940 eac3_decoder_select="ac3_decoder"
1941 eac3_encoder_select="ac3_encoder"
1942 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1943 eatgq_decoder_select="aandcttables idctdsp"
1944 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1945 exr_decoder_deps="zlib"
1946 ffv1_decoder_select="golomb rangecoder"
1947 ffv1_encoder_select="rangecoder"
1948 ffvhuff_decoder_select="huffyuv_decoder"
1949 ffvhuff_encoder_select="huffyuv_encoder"
1950 fic_decoder_select="golomb"
1951 flac_decoder_select="flacdsp golomb"
1952 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1953 flashsv_decoder_deps="zlib"
1954 flashsv_encoder_deps="zlib"
1955 flashsv2_decoder_deps="zlib"
1956 flv_decoder_select="h263_decoder"
1957 flv_encoder_select="h263_encoder"
1958 fourxm_decoder_select="blockdsp bswapdsp"
1959 fraps_decoder_select="bswapdsp huffman"
1960 g2m_decoder_deps="zlib"
1961 g2m_decoder_select="blockdsp idctdsp jpegtables"
1962 h261_decoder_select="mpeg_er mpegvideo"
1963 h261_encoder_select="aandcttables mpegvideoenc"
1964 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1965 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1966 h263i_decoder_select="h263_decoder"
1967 h263p_encoder_select="h263_encoder"
1968 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1969 h264_decoder_suggest="error_resilience"
1970 hap_decoder_select="snappy texturedsp"
1971 hap_encoder_deps="libsnappy"
1972 hap_encoder_select="texturedspenc"
1973 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1974 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1975 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1976 iac_decoder_select="imc_decoder"
1977 imc_decoder_select="bswapdsp fft mdct sinewin"
1978 indeo3_decoder_select="hpeldsp"
1979 indeo4_decoder_select="ividsp"
1980 indeo5_decoder_select="ividsp"
1981 interplay_video_decoder_select="hpeldsp"
1982 jpegls_decoder_select="golomb mjpeg_decoder"
1983 jpegls_encoder_select="golomb"
1984 jv_decoder_select="blockdsp"
1985 lagarith_decoder_select="huffyuvdsp"
1986 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1987 loco_decoder_select="golomb"
1988 magicyuv_decoder_select="huffyuvdsp"
1989 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1990 metasound_decoder_select="lsp mdct sinewin"
1991 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1992 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1993 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1994 mjpegb_decoder_select="mjpeg_decoder"
1995 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
1996 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
1997 mlp_decoder_select="mlp_parser"
1998 motionpixels_decoder_select="bswapdsp"
1999 mp1_decoder_select="mpegaudio"
2000 mp1float_decoder_select="mpegaudio"
2001 mp2_decoder_select="mpegaudio"
2002 mp2float_decoder_select="mpegaudio"
2003 mp3_decoder_select="mpegaudio"
2004 mp3adu_decoder_select="mpegaudio"
2005 mp3adufloat_decoder_select="mpegaudio"
2006 mp3float_decoder_select="mpegaudio"
2007 mp3on4_decoder_select="mpegaudio"
2008 mp3on4float_decoder_select="mpegaudio"
2009 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2010 mpc8_decoder_select="mpegaudiodsp"
2011 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2012 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2013 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2014 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2015 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2016 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2017 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2018 mpeg4_encoder_select="h263_encoder"
2019 msa1_decoder_select="mss34dsp"
2020 msmpeg4v1_decoder_select="h263_decoder"
2021 msmpeg4v2_decoder_select="h263_decoder"
2022 msmpeg4v2_encoder_select="h263_encoder"
2023 msmpeg4v3_decoder_select="h263_decoder"
2024 msmpeg4v3_encoder_select="h263_encoder"
2025 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2026 mts2_decoder_select="mss34dsp"
2027 mxpeg_decoder_select="mjpeg_decoder"
2028 nellymoser_decoder_select="mdct sinewin"
2029 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2030 nuv_decoder_select="idctdsp lzo"
2031 on2avc_decoder_select="mdct"
2032 opus_decoder_deps="avresample"
2033 opus_decoder_select="imdct15"
2034 png_decoder_deps="zlib"
2035 png_encoder_deps="zlib"
2036 png_encoder_select="huffyuvencdsp"
2037 prores_decoder_select="idctdsp"
2038 prores_encoder_select="fdctdsp"
2039 qcelp_decoder_select="lsp"
2040 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2041 ra_144_encoder_select="audio_frame_queue lpc"
2042 ralf_decoder_select="golomb"
2043 rscc_decoder_deps="zlib"
2044 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2045 rv10_encoder_select="h263_encoder"
2046 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2047 rv20_encoder_select="h263_encoder"
2048 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2049 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2050 screenpresso_decoder_deps="zlib"
2051 shorten_decoder_select="golomb"
2052 sipr_decoder_select="lsp"
2053 sp5x_decoder_select="mjpeg_decoder"
2054 svq1_decoder_select="hpeldsp"
2055 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2056 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2057 svq3_decoder_suggest="zlib"
2058 tak_decoder_select="audiodsp"
2059 tdsc_decoder_deps="zlib"
2060 tdsc_decoder_select="mjpeg_decoder"
2061 theora_decoder_select="vp3_decoder"
2062 thp_decoder_select="mjpeg_decoder"
2063 tiff_decoder_suggest="zlib"
2064 tiff_encoder_suggest="zlib"
2065 truehd_decoder_select="mlp_decoder"
2066 truemotion2_decoder_select="bswapdsp"
2067 truespeech_decoder_select="bswapdsp"
2068 tscc_decoder_deps="zlib"
2069 txd_decoder_select="texturedsp"
2070 twinvq_decoder_select="mdct lsp sinewin"
2071 utvideo_decoder_select="bswapdsp"
2072 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2073 vble_decoder_select="huffyuvdsp"
2074 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2075 vc1image_decoder_select="vc1_decoder"
2076 vorbis_decoder_select="mdct"
2077 vorbis_encoder_select="mdct"
2078 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2079 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2080 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2081 vp6a_decoder_select="vp6_decoder"
2082 vp6f_decoder_select="vp6_decoder"
2083 vp7_decoder_select="h264pred videodsp vp8dsp"
2084 vp8_decoder_select="h264pred videodsp vp8dsp"
2085 vp9_decoder_select="videodsp"
2086 webp_decoder_select="vp8_decoder"
2087 wmapro_decoder_select="mdct sinewin wma_freqs"
2088 wmav1_decoder_select="mdct sinewin wma_freqs"
2089 wmav1_encoder_select="mdct sinewin wma_freqs"
2090 wmav2_decoder_select="mdct sinewin wma_freqs"
2091 wmav2_encoder_select="mdct sinewin wma_freqs"
2092 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2093 wmv1_decoder_select="h263_decoder"
2094 wmv1_encoder_select="h263_encoder"
2095 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2096 wmv2_encoder_select="h263_encoder wmv2dsp"
2097 wmv3_decoder_select="vc1_decoder"
2098 wmv3image_decoder_select="wmv3_decoder"
2099 zerocodec_decoder_deps="zlib"
2100 zlib_decoder_deps="zlib"
2101 zlib_encoder_deps="zlib"
2102 zmbv_decoder_deps="zlib"
2103 zmbv_encoder_deps="zlib"
2104
2105 # hardware accelerators
2106 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2107 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2108 vaapi_deps="va_va_h"
2109 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2110 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2111 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2112
2113 h263_vaapi_hwaccel_deps="vaapi"
2114 h263_vaapi_hwaccel_select="h263_decoder"
2115 h264_d3d11va_hwaccel_deps="d3d11va"
2116 h264_d3d11va_hwaccel_select="h264_decoder"
2117 h264_dxva2_hwaccel_deps="dxva2"
2118 h264_dxva2_hwaccel_select="h264_decoder"
2119 h264_mmal_decoder_deps="mmal"
2120 h264_mmal_decoder_select="mmal"
2121 h264_mmal_hwaccel_deps="mmal"
2122 h264_omx_encoder_deps="omx"
2123 h264_qsv_hwaccel_deps="libmfx"
2124 h264_vaapi_hwaccel_deps="vaapi"
2125 h264_vaapi_hwaccel_select="h264_decoder"
2126 h264_vda_hwaccel_deps="vda"
2127 h264_vda_hwaccel_select="h264_decoder"
2128 h264_vda_old_hwaccel_deps="vda"
2129 h264_vda_old_hwaccel_select="h264_decoder"
2130 h264_vdpau_hwaccel_deps="vdpau"
2131 h264_vdpau_hwaccel_select="h264_decoder"
2132 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2133 hevc_d3d11va_hwaccel_select="hevc_decoder"
2134 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2135 hevc_dxva2_hwaccel_select="hevc_decoder"
2136 hevc_qsv_hwaccel_deps="libmfx"
2137 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2138 hevc_vdpau_hwaccel_select="hevc_decoder"
2139 mpeg1_vdpau_hwaccel_deps="vdpau"
2140 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2141 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2142 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2143 mpeg2_dxva2_hwaccel_deps="dxva2"
2144 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2145 mpeg2_mmal_decoder_deps="mmal"
2146 mpeg2_mmal_decoder_select="mmal"
2147 mpeg2_mmal_hwaccel_deps="mmal"
2148 mpeg2_qsv_hwaccel_deps="libmfx"
2149 mpeg2_vaapi_hwaccel_deps="vaapi"
2150 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2151 mpeg2_vdpau_hwaccel_deps="vdpau"
2152 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2153 mpeg4_omx_encoder_deps="omx"
2154 mpeg4_vaapi_hwaccel_deps="vaapi"
2155 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2156 mpeg4_vdpau_hwaccel_deps="vdpau"
2157 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2158 vc1_d3d11va_hwaccel_deps="d3d11va"
2159 vc1_d3d11va_hwaccel_select="vc1_decoder"
2160 vc1_dxva2_hwaccel_deps="dxva2"
2161 vc1_dxva2_hwaccel_select="vc1_decoder"
2162 vc1_mmal_decoder_deps="mmal"
2163 vc1_mmal_decoder_select="mmal"
2164 vc1_mmal_hwaccel_deps="mmal"
2165 vc1_vaapi_hwaccel_deps="vaapi"
2166 vc1_vaapi_hwaccel_select="vc1_decoder"
2167 vc1_vdpau_hwaccel_deps="vdpau"
2168 vc1_vdpau_hwaccel_select="vc1_decoder"
2169 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2170 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2171 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2172 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2173
2174 # hardware-accelerated codecs
2175 nvenc_deps_any="dlopen LoadLibrary"
2176 nvenc_extralibs='$ldl'
2177 omx_deps="dlopen pthreads"
2178 omx_extralibs='$ldl'
2179 qsvdec_select="qsv"
2180 qsvenc_select="qsv"
2181 vaapi_encode_deps="vaapi"
2182
2183 hwupload_cuda_filter_deps="cuda"
2184 scale_npp_filter_deps="cuda libnpp"
2185
2186 h264_nvenc_encoder_deps="nvenc"
2187 h264_qsv_decoder_deps="libmfx"
2188 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2189 h264_qsv_encoder_deps="libmfx"
2190 h264_qsv_encoder_select="qsvenc"
2191 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2192 h264_vaapi_encoder_select="vaapi_encode golomb"
2193
2194 hevc_nvenc_encoder_deps="nvenc"
2195 hevc_qsv_decoder_deps="libmfx"
2196 hevc_qsv_encoder_deps="libmfx"
2197 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2198 hevc_qsv_encoder_select="qsvenc"
2199 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2200 hevc_vaapi_encoder_select="vaapi_encode golomb"
2201 mpeg2_qsv_decoder_deps="libmfx"
2202 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2203 mpeg2_qsv_encoder_deps="libmfx"
2204 mpeg2_qsv_encoder_select="qsvenc"
2205
2206 nvenc_h264_encoder_deps="nvenc"
2207 nvenc_hevc_encoder_deps="nvenc"
2208
2209 # parsers
2210 h264_parser_select="golomb h264dsp h264parse"
2211 hevc_parser_select="golomb"
2212 mpegvideo_parser_select="mpegvideo"
2213 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2214 vc1_parser_select="vc1dsp"
2215
2216 # bitstream_filters
2217 mjpeg2jpeg_bsf_select="jpegtables"
2218
2219 # external libraries
2220 libdcadec_decoder_deps="libdcadec"
2221 libfaac_encoder_deps="libfaac"
2222 libfaac_encoder_select="audio_frame_queue"
2223 libfdk_aac_decoder_deps="libfdk_aac"
2224 libfdk_aac_encoder_deps="libfdk_aac"
2225 libfdk_aac_encoder_select="audio_frame_queue"
2226 libgsm_decoder_deps="libgsm"
2227 libgsm_encoder_deps="libgsm"
2228 libgsm_ms_decoder_deps="libgsm"
2229 libgsm_ms_encoder_deps="libgsm"
2230 libilbc_decoder_deps="libilbc"
2231 libilbc_encoder_deps="libilbc"
2232 libkvazaar_encoder_deps="libkvazaar"
2233 libmp3lame_encoder_deps="libmp3lame"
2234 libmp3lame_encoder_select="audio_frame_queue"
2235 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2236 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2237 libopencore_amrnb_encoder_select="audio_frame_queue"
2238 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2239 libopenh264_decoder_deps="libopenh264"
2240 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2241 libopenh264_encoder_deps="libopenh264"
2242 libopenjpeg_decoder_deps="libopenjpeg"
2243 libopenjpeg_encoder_deps="libopenjpeg"
2244 libopus_decoder_deps="libopus"
2245 libopus_encoder_deps="libopus"
2246 libopus_encoder_select="audio_frame_queue"
2247 libschroedinger_decoder_deps="libschroedinger"
2248 libschroedinger_encoder_deps="libschroedinger"
2249 libspeex_decoder_deps="libspeex"
2250 libspeex_encoder_deps="libspeex"
2251 libspeex_encoder_select="audio_frame_queue"
2252 libtheora_encoder_deps="libtheora"
2253 libtwolame_encoder_deps="libtwolame"
2254 libvo_aacenc_encoder_deps="libvo_aacenc"
2255 libvo_aacenc_encoder_select="audio_frame_queue"
2256 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2257 libvorbis_encoder_deps="libvorbis"
2258 libvorbis_encoder_select="audio_frame_queue"
2259 libvpx_vp8_decoder_deps="libvpx"
2260 libvpx_vp8_encoder_deps="libvpx"
2261 libvpx_vp9_decoder_deps="libvpx"
2262 libvpx_vp9_encoder_deps="libvpx"
2263 libwavpack_encoder_deps="libwavpack"
2264 libwebp_encoder_deps="libwebp"
2265 libx262_encoder_deps="libx262"
2266 libx264_encoder_deps="libx264"
2267 libx265_encoder_deps="libx265"
2268 libxavs_encoder_deps="libxavs"
2269 libxvid_encoder_deps="libxvid"
2270
2271 # demuxers / muxers
2272 ac3_demuxer_select="ac3_parser"
2273 asf_demuxer_select="riffdec"
2274 asf_muxer_select="riffenc"
2275 asf_stream_muxer_select="asf_muxer"
2276 avi_demuxer_select="iso_media riffdec"
2277 avi_muxer_select="riffenc"
2278 avisynth_demuxer_deps="avisynth"
2279 avisynth_demuxer_select="riffdec"
2280 caf_demuxer_select="iso_media riffdec"
2281 dash_muxer_select="mp4_muxer"
2282 dirac_demuxer_select="dirac_parser"
2283 dv_demuxer_select="dvprofile"
2284 dv_muxer_select="dvprofile"
2285 dxa_demuxer_select="riffdec"
2286 eac3_demuxer_select="ac3_parser"
2287 f4v_muxer_select="mov_muxer"
2288 flac_demuxer_select="flac_parser"
2289 hds_muxer_select="flv_muxer"
2290 hls_muxer_select="mpegts_muxer"
2291 ipod_muxer_select="mov_muxer"
2292 ismv_muxer_select="mov_muxer"
2293 matroska_audio_muxer_select="matroska_muxer"
2294 matroska_demuxer_select="iso_media riffdec"
2295 matroska_demuxer_suggest="bzlib lzo zlib"
2296 matroska_muxer_select="iso_media riffenc"
2297 mmf_muxer_select="riffenc"
2298 mov_demuxer_select="iso_media riffdec"
2299 mov_demuxer_suggest="zlib"
2300 mov_muxer_select="iso_media riffenc rtpenc_chain"
2301 mp3_demuxer_select="mpegaudio_parser"
2302 mp4_muxer_select="mov_muxer"
2303 mpegts_demuxer_select="iso_media"
2304 mpegts_muxer_select="adts_muxer latm_muxer"
2305 mpegtsraw_demuxer_select="mpegts_demuxer"
2306 mxf_d10_muxer_select="mxf_muxer"
2307 nut_muxer_select="riffenc"
2308 nuv_demuxer_select="riffdec"
2309 oga_muxer_select="ogg_muxer"
2310 ogg_demuxer_select="dirac_parse"
2311 opus_muxer_select="ogg_muxer"
2312 psp_muxer_select="mov_muxer"
2313 rtp_demuxer_select="sdp_demuxer"
2314 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2315 rtsp_demuxer_select="http_protocol rtpdec"
2316 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2317 sap_demuxer_select="sdp_demuxer"
2318 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2319 sdp_demuxer_select="rtpdec"
2320 smoothstreaming_muxer_select="ismv_muxer"
2321 spdif_muxer_select="aac_parser"
2322 spx_muxer_select="ogg_muxer"
2323 swf_demuxer_suggest="zlib"
2324 tak_demuxer_select="tak_parser"
2325 tg2_muxer_select="mov_muxer"
2326 tgp_muxer_select="mov_muxer"
2327 w64_demuxer_select="wav_demuxer"
2328 wav_demuxer_select="riffdec"
2329 wav_muxer_select="riffenc"
2330 webm_muxer_select="iso_media riffenc"
2331 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2332 wtv_demuxer_select="mpegts_demuxer riffdec"
2333 xmv_demuxer_select="riffdec"
2334 xwma_demuxer_select="riffdec"
2335
2336 # indevs / outdevs
2337 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2338 alsa_outdev_deps="alsa_asoundlib_h"
2339 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2340 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2341 dv1394_indev_deps="dv1394"
2342 dv1394_indev_select="dv_demuxer"
2343 fbdev_indev_deps="linux_fb_h"
2344 jack_indev_deps="jack_jack_h"
2345 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2346 libcdio_indev_deps="libcdio"
2347 libdc1394_indev_deps="libdc1394"
2348 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2349 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2350 pulse_indev_deps="libpulse"
2351 sndio_indev_deps="sndio_h"
2352 sndio_outdev_deps="sndio_h"
2353 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2354 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2355 vfwcap_indev_extralibs="-lavicap32"
2356 x11grab_indev_deps="x11grab"
2357 x11grab_xcb_indev_deps="libxcb"
2358
2359 # protocols
2360 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2361 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2362 ffrtmpcrypt_protocol_select="tcp_protocol"
2363 ffrtmphttp_protocol_deps="!librtmp_protocol"
2364 ffrtmphttp_protocol_select="http_protocol"
2365 gopher_protocol_select="network"
2366 http_protocol_select="tcp_protocol"
2367 httpproxy_protocol_select="tcp_protocol"
2368 https_protocol_select="tls_protocol"
2369 icecast_protocol_select="http_protocol"
2370 librtmp_protocol_deps="librtmp"
2371 librtmpe_protocol_deps="librtmp"
2372 librtmps_protocol_deps="librtmp"
2373 librtmpt_protocol_deps="librtmp"
2374 librtmpte_protocol_deps="librtmp"
2375 mmsh_protocol_select="http_protocol"
2376 mmst_protocol_select="network"
2377 rtmp_protocol_deps="!librtmp_protocol"
2378 rtmp_protocol_select="tcp_protocol"
2379 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2380 rtmps_protocol_deps="!librtmp_protocol"
2381 rtmps_protocol_select="tls_protocol"
2382 rtmpt_protocol_select="ffrtmphttp_protocol"
2383 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2384 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2385 rtp_protocol_select="udp_protocol"
2386 sctp_protocol_deps="struct_sctp_event_subscribe"
2387 sctp_protocol_select="network"
2388 srtp_protocol_select="rtp_protocol srtp"
2389 tcp_protocol_select="network"
2390 tls_gnutls_protocol_deps="gnutls"
2391 tls_gnutls_protocol_select="tcp_protocol"
2392 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2393 tls_openssl_protocol_select="tcp_protocol"
2394 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2395 udp_protocol_select="network"
2396 unix_protocol_deps="sys_un_h"
2397 unix_protocol_select="network"
2398
2399 # filters
2400 blackframe_filter_deps="gpl"
2401 boxblur_filter_deps="gpl"
2402 bs2b_filter_deps="libbs2b"
2403 cropdetect_filter_deps="gpl"
2404 delogo_filter_deps="gpl"
2405 drawtext_filter_deps="libfreetype"
2406 frei0r_filter_deps="frei0r dlopen"
2407 frei0r_filter_extralibs='$ldl'
2408 frei0r_src_filter_deps="frei0r dlopen"
2409 frei0r_src_filter_extralibs='$ldl'
2410 hqdn3d_filter_deps="gpl"
2411 interlace_filter_deps="gpl"
2412 ocv_filter_deps="libopencv"
2413 resample_filter_deps="avresample"
2414 scale_filter_deps="swscale"
2415 scale_qsv_filter_deps="libmfx"
2416 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2417
2418 # examples
2419 avcodec_example_deps="avcodec avutil"
2420 filter_audio_example_deps="avfilter avutil"
2421 metadata_example_deps="avformat avutil"
2422 output_example_deps="avcodec avformat avutil swscale"
2423 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2424 transcode_aac_example_deps="avcodec avformat avresample"
2425
2426 # libraries, in linking order
2427 avcodec_deps="avutil"
2428 avdevice_deps="avformat avcodec avutil"
2429 avfilter_deps="avutil"
2430 avformat_deps="avcodec avutil"
2431 avresample_deps="avutil"
2432 swscale_deps="avutil"
2433
2434 # programs
2435 avconv_deps="avcodec avfilter avformat avresample swscale"
2436 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2437 fps_filter null_filter resample_filter scale_filter
2438 setpts_filter trim_filter"
2439 avplay_deps="avcodec avfilter avformat avresample sdl"
2440 avplay_libs='$sdl_libs'
2441 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2442 avprobe_deps="avcodec avformat"
2443
2444 # documentation
2445 pod2man_deps="doc"
2446 texi2html_deps="doc"
2447
2448 # default parameters
2449
2450 logfile="config.log"
2451
2452 # installation paths
2453 prefix_default="/usr/local"
2454 bindir_default='${prefix}/bin'
2455 datadir_default='${prefix}/share/avconv'
2456 docdir_default='${prefix}/share/doc/libav'
2457 incdir_default='${prefix}/include'
2458 libdir_default='${prefix}/lib'
2459 mandir_default='${prefix}/share/man'
2460 shlibdir_default="$libdir_default"
2461
2462 # toolchain
2463 ar_default="ar"
2464 cc_default="gcc"
2465 host_cc_default="gcc"
2466 cp_f="cp -f"
2467 ln_s="ln -s -f"
2468 nm_default="nm -g"
2469 objformat="elf"
2470 pkg_config_default=pkg-config
2471 ranlib="ranlib"
2472 strip="strip"
2473 version_script='--version-script'
2474 yasmexe="yasm"
2475
2476 # machine
2477 arch_default=$(uname -m)
2478 cpu="generic"
2479 intrinsics="none"
2480
2481 # OS
2482 target_os_default=$(tolower $(uname -s))
2483 host_os=$target_os_default
2484
2485 # configurable options
2486 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2487
2488 enable asm
2489 enable debug
2490 enable doc
2491 enable faan faandct faanidct
2492 enable optimizations
2493 enable safe_bitstream_reader
2494 enable static
2495 enable swscale_alpha
2496 enable valgrind_backtrace
2497
2498 # By default, enable only those hwaccels that have no external dependencies.
2499 enable d3d11va dxva2 vda vdpau
2500
2501 # build settings
2502 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2503 LIBPREF="lib"
2504 LIBSUF=".a"
2505 FULLNAME='$(NAME)$(BUILDSUF)'
2506 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2507 SLIBPREF="lib"
2508 SLIBSUF=".so"
2509 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2510 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2511 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2512 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2513 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2514 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2515 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2516
2517 asflags_filter=echo
2518 cflags_filter=echo
2519 ldflags_filter=echo
2520
2521 AS_C='-c'
2522 AS_O='-o $@'
2523 CC_C='-c'
2524 CC_E='-E -o $@'
2525 CC_O='-o $@'
2526 OBJCC_C='-c'
2527 OBJCC_E='-E -o $@'
2528 OBJCC_O='-o $@'
2529 LD_O='-o $@'
2530 LD_LIB='-l%'
2531 LD_PATH='-L'
2532 HOSTCC_C='-c'
2533 HOSTCC_E='-E -o $@'
2534 HOSTCC_O='-o $@'
2535 HOSTLD_O='-o $@'
2536
2537 host_libs='-lm'
2538 host_cflags_filter=echo
2539 host_ldflags_filter=echo
2540
2541 target_path='$(CURDIR)'
2542
2543 # since the object filename is not given with the -MM flag, the compiler
2544 # is only able to print the basename, and we must add the path ourselves
2545 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2546 DEPFLAGS='-MM'
2547
2548 # find source path
2549 if test -f configure; then
2550 source_path=.
2551 else
2552 source_path=$(cd $(dirname "$0"); pwd)
2553 echo "$source_path" | grep -q '[[:blank:]]' &&
2554 die "Out of tree builds are impossible with whitespace in source path."
2555 test -e "$source_path/config.h" &&
2556 die "Out of tree builds are impossible with config.h in source dir."
2557 fi
2558
2559 for v in "$@"; do
2560 r=${v#*=}
2561 l=${v%"$r"}
2562 r=$(sh_quote "$r")
2563 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2564 done
2565
2566 find_things(){
2567 thing=$1
2568 pattern=$2
2569 file=$source_path/$3
2570 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2571 }
2572
2573 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2574 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2575 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2576 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2577 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2578 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2579 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2580 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2581 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2582
2583 find_things_extern(){
2584 thing=$1
2585 pattern=$2
2586 file=$source_path/$3
2587 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2588 }
2589
2590 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2591 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2592
2593 ALL_COMPONENTS="
2594 $BSF_LIST
2595 $DECODER_LIST
2596 $DEMUXER_LIST
2597 $ENCODER_LIST
2598 $FILTER_LIST
2599 $HWACCEL_LIST
2600 $INDEV_LIST
2601 $MUXER_LIST
2602 $OUTDEV_LIST
2603 $PARSER_LIST
2604 $PROTOCOL_LIST
2605 "
2606
2607 for n in $COMPONENT_LIST; do
2608 v=$(toupper ${n%s})_LIST
2609 eval enable \$$v
2610 eval ${n}_if_any="\$$v"
2611 done
2612
2613 enable $ARCH_EXT_LIST
2614
2615 die_unknown(){
2616 echo "Unknown option \"$1\"."
2617 echo "See $0 --help for available options."
2618 exit 1
2619 }
2620
2621 print_3_columns() {
2622 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2623 }
2624
2625 show_list() {
2626 suffix=_$1
2627 shift
2628 echo $* | sed s/$suffix//g | print_3_columns
2629 exit 0
2630 }
2631
2632 rand_list(){
2633 IFS=', '
2634 set -- $*
2635 unset IFS
2636 for thing; do
2637 comp=${thing%:*}
2638 prob=${thing#$comp}
2639 prob=${prob#:}
2640 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2641 echo "prob ${prob:-0.5}"
2642 printf '%s\n' $comp
2643 done
2644 }
2645
2646 do_random(){
2647 action=$1
2648 shift
2649 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2650 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2651 }
2652
2653 for opt do
2654 optval="${opt#*=}"
2655 case "$opt" in
2656 --extra-ldflags=*)
2657 add_ldflags $optval
2658 ;;
2659 --extra-ldexeflags=*)
2660 add_ldexeflags $optval
2661 ;;
2662 --extra-libs=*)
2663 add_extralibs $optval
2664 ;;
2665 --disable-devices)
2666 disable $INDEV_LIST $OUTDEV_LIST
2667 ;;
2668 --enable-debug=*)
2669 debuglevel="$optval"
2670 ;;
2671 --disable-programs)
2672 disable $PROGRAM_LIST
2673 ;;
2674 --disable-everything)
2675 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2676 ;;
2677 --disable-all)
2678 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2679 disable $LIBRARY_LIST $PROGRAM_LIST doc
2680 ;;
2681 --enable-random|--disable-random)
2682 action=${opt%%-random}
2683 do_random ${action#--} $COMPONENT_LIST
2684 ;;
2685 --enable-random=*|--disable-random=*)
2686 action=${opt%%-random=*}
2687 do_random ${action#--} $optval
2688 ;;
2689 --enable-*=*|--disable-*=*)
2690 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2691 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2692 eval list=\$$(toupper $thing)_LIST
2693 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2694 $action $(filter "$name" $list)
2695 ;;
2696 --enable-avserver|--disable-avserver*)
2697 warn "avserver has been removed, the ${opt} option is only"\
2698 "provided for compatibility and will be removed in the future"
2699 ;;
2700 --enable-?*|--disable-?*)
2701 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2702 if is_in $option $COMPONENT_LIST; then
2703 test $action = disable && action=unset
2704 eval $action \$$(toupper ${option%s})_LIST
2705 elif is_in $option $CMDLINE_SELECT; then
2706 $action $option
2707 else
2708 die_unknown $opt
2709 fi
2710 ;;
2711 --list-*)
2712 NAME="${opt#--list-}"
2713 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2714 NAME=${NAME%s}
2715 eval show_list $NAME \$$(toupper $NAME)_LIST
2716 ;;
2717 --help|-h) show_help
2718 ;;
2719 *)
2720 optname="${opt%%=*}"
2721 optname="${optname#--}"
2722 optname=$(echo "$optname" | sed 's/-/_/g')
2723 if is_in $optname $CMDLINE_SET; then
2724 eval $optname='$optval'
2725 elif is_in $optname $CMDLINE_APPEND; then
2726 append $optname "$optval"
2727 else
2728 die_unknown $opt
2729 fi
2730 ;;
2731 esac
2732 done
2733
2734 for e in $env; do
2735 eval "export $e"
2736 done
2737
2738 disabled logging && logfile=/dev/null
2739
2740 # Disable all the library-specific components if the library itself
2741 # is disabled, see AVCODEC_LIST and following _LIST variables.
2742
2743 disable_components(){
2744 disabled ${1} && disable $(
2745 eval components="\$$(toupper ${1})_COMPONENTS"
2746 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2747 )
2748 }
2749
2750 map 'disable_components $v' $LIBRARY_LIST
2751
2752 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2753 set >> $logfile
2754
2755 case "$toolchain" in
2756 *-asan)
2757 cc_default="${toolchain%-asan}"
2758 add_cflags -fsanitize=address
2759 add_ldflags -fsanitize=address
2760 ;;
2761 *-msan)
2762 cc_default="${toolchain%-msan}"
2763 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2764 add_ldflags -fsanitize=memory
2765 ;;
2766 *-tsan)
2767 cc_default="${toolchain%-tsan}"
2768 add_cflags -fsanitize=thread -pie
2769 add_ldflags -fsanitize=thread -pie
2770 case "$toolchain" in
2771 gcc-tsan)
2772 add_cflags -fPIC
2773 add_ldflags -fPIC
2774 ;;
2775 esac
2776 ;;
2777 *-usan)
2778 cc_default="${toolchain%-usan}"
2779 add_cflags -fsanitize=undefined
2780 add_ldflags -fsanitize=undefined
2781 case "$toolchain" in
2782 clang-usan)
2783 add_cflags -O1
2784 ;;
2785 esac
2786 ;;
2787 valgrind-*)
2788 target_exec_default="valgrind"
2789 case "$toolchain" in
2790 valgrind-massif)
2791 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2792 ;;
2793 valgrind-memcheck)
2794 target_exec_args="--track-origins=yes --leak-check=full"
2795 ;;
2796 esac
2797 ;;
2798 msvc)
2799 # Check whether the current MSVC version needs the C99 converter.
2800 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2801 # support enough of C99 to build libav. Default to the new
2802 # behaviour if the regexp was unable to match anything, since this
2803 # successfully parses the version number of existing supported
2804 # versions that require the converter (MSVC 2010 and 2012).
2805 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2806 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2807 cc_default="cl"
2808 else
2809 cc_default="c99wrap cl"
2810 fi
2811 ld_default="$source_path/compat/windows/mslink"
2812 nm_default="dumpbin -symbols"
2813 ar_default="lib"
2814 case "$arch" in
2815 arm*)
2816 as_default="armasm"
2817 ;;
2818 esac
2819 target_os_default="win32"
2820 # Use a relative path for TMPDIR. This makes sure all the
2821 # ffconf temp files are written with a relative path, avoiding
2822 # issues with msys/win32 path conversion for MSVC parameters
2823 # such as -Fo<file> or -out:<file>.
2824 TMPDIR=.
2825 ;;
2826 icl)
2827 cc_default="icl"
2828 ld_default="xilink"
2829 nm_default="dumpbin -symbols"
2830 ar_default="xilib"
2831 target_os_default="win32"
2832 TMPDIR=.
2833 ;;
2834 gcov)
2835 add_cflags -fprofile-arcs -ftest-coverage
2836 add_ldflags -fprofile-arcs -ftest-coverage
2837 ;;
2838 llvm-cov)
2839 add_cflags -fprofile-arcs -ftest-coverage
2840 add_ldflags --coverage
2841 ;;
2842 hardened)
2843 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2844 add_cflags -fno-strict-overflow -fstack-protector-all
2845 add_ldflags -Wl,-z,relro -Wl,-z,now
2846 ;;
2847 ?*)
2848 die "Unknown toolchain $toolchain"
2849 ;;
2850 esac
2851
2852 test -n "$cross_prefix" && enable cross_compile
2853
2854 if enabled cross_compile; then
2855 test -n "$arch" && test -n "$target_os" ||
2856 die "Must specify target arch and OS when cross-compiling"
2857 fi
2858
2859 ar_default="${cross_prefix}${ar_default}"
2860 cc_default="${cross_prefix}${cc_default}"
2861 occ_default="${cross_prefix}${occ_default}"
2862 nm_default="${cross_prefix}${nm_default}"
2863 pkg_config_default="${cross_prefix}${pkg_config_default}"
2864 ranlib="${cross_prefix}${ranlib}"
2865 strip="${cross_prefix}${strip}"
2866
2867 sysinclude_default="${sysroot}/usr/include"
2868
2869 set_default arch cc pkg_config sysinclude target_exec target_os
2870 enabled cross_compile || host_cc_default=$cc
2871 set_default host_cc
2872
2873 if ! $pkg_config --version >/dev/null 2>&1; then
2874 warn "$pkg_config not found, library detection may fail."
2875 pkg_config=false
2876 fi
2877
2878 exesuf() {
2879 case $1 in
2880 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2881 esac
2882 }
2883
2884 EXESUF=$(exesuf $target_os)
2885 HOSTEXESUF=$(exesuf $host_os)
2886
2887 # set temporary file name
2888 : ${TMPDIR:=$TEMPDIR}
2889 : ${TMPDIR:=$TMP}
2890 : ${TMPDIR:=/tmp}
2891
2892 if ! check_cmd mktemp -u XXXXXX; then
2893 # simple replacement for missing mktemp
2894 # NOT SAFE FOR GENERAL USE
2895 mktemp(){
2896 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2897 }
2898 fi
2899
2900 tmpfile(){
2901 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2902 (set -C; exec > $tmp) 2>/dev/null ||
2903 die "Unable to create temporary file in $TMPDIR."
2904 append TMPFILES $tmp
2905 eval $1=$tmp
2906 }
2907
2908 trap 'rm -f -- $TMPFILES' EXIT
2909
2910 tmpfile TMPASM .asm
2911 tmpfile TMPC .c
2912 tmpfile TMPE $EXESUF
2913 tmpfile TMPH .h
2914 tmpfile TMPO .o
2915 tmpfile TMPS .S
2916 tmpfile TMPSH .sh
2917 tmpfile TMPV .ver
2918
2919 unset -f mktemp
2920
2921 chmod +x $TMPE
2922
2923 # make sure we can execute files in $TMPDIR
2924 cat > $TMPSH 2>> $logfile <<EOF
2925 #! /bin/sh
2926 EOF
2927 chmod +x $TMPSH >> $logfile 2>&1
2928 if ! $TMPSH >> $logfile 2>&1; then
2929 cat <<EOF
2930 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2931 variable to another directory and make sure that it is not mounted noexec.
2932 EOF
2933 die "Sanity test failed."
2934 fi
2935
2936 armasm_flags(){
2937 for flag; do
2938 case $flag in
2939 # Filter out MSVC cl.exe options from cflags that shouldn't
2940 # be passed to gas-preprocessor
2941 -M[TD]*) ;;
2942 *) echo $flag ;;
2943 esac
2944 done
2945 }
2946
2947 ccc_flags(){
2948 for flag; do
2949 case $flag in
2950 -std=c99) echo -c99 ;;
2951 -mcpu=*) echo -arch ${flag#*=} ;;
2952 -mieee) echo -ieee ;;
2953 -O*|-fast) echo $flag ;;
2954 -fno-math-errno) echo -assume nomath_errno ;;
2955 -g) echo -g3 ;;
2956 -Wall) echo -msg_enable level2 ;;
2957 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2958 -Wl,*) echo $flag ;;
2959 -f*|-W*) ;;
2960 *) echo $flag ;;
2961 esac
2962 done
2963 }
2964
2965 cparser_flags(){
2966 for flag; do
2967 case $flag in
2968 -Wno-switch) echo -Wno-switch-enum ;;
2969 -Wno-format-zero-length) ;;
2970 -Wdisabled-optimization) ;;
2971 -Wno-pointer-sign) echo -Wno-other ;;
2972 *) echo $flag ;;
2973 esac
2974 done
2975 }
2976
2977 msvc_common_flags(){
2978 for flag; do
2979 case $flag in
2980 # In addition to specifying certain flags under the compiler
2981 # specific filters, they must be specified here as well or else the
2982 # generic catch all at the bottom will print the original flag.
2983 -Wall) ;;
2984 -std=c99) ;;
2985 # Common flags
2986 -fomit-frame-pointer) ;;
2987 -g) echo -Z7 ;;
2988 -fno-math-errno) ;;
2989 -fno-common) ;;
2990 -fno-signed-zeros) ;;
2991 -fPIC) ;;
2992 -mthumb) ;;
2993 -march=*) ;;
2994 -lz) echo zlib.lib ;;
2995 -lavifil32) echo vfw32.lib ;;
2996 -lavicap32) echo vfw32.lib user32.lib ;;
2997 -lx264) echo libx264.lib ;;
2998 -l*) echo ${flag#-l}.lib ;;
2999 -L*) echo -libpath:${flag#-L} ;;
3000 *) echo $flag ;;
3001 esac
3002 done
3003 }
3004
3005 msvc_flags(){
3006 msvc_common_flags "$@"
3007 for flag; do
3008 case $flag in
3009 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3010 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3011 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3012 -wd4273 -wd4554 -wd4701 ;;
3013 esac
3014 done
3015 }
3016
3017 icl_flags(){
3018 msvc_common_flags "$@"
3019 for flag; do
3020 case $flag in
3021 # Despite what Intel's documentation says -Wall, which is supported
3022 # on Windows, does enable remarks so disable them here.
3023 -Wall) echo $flag -Qdiag-disable:remark ;;
3024 -std=c99) echo -Qstd=c99 ;;
3025 esac
3026 done
3027 }
3028
3029 pgi_flags(){
3030 for flag; do
3031 case $flag in
3032 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3033 -fomit-frame-pointer) echo -Mnoframe ;;
3034 -g) echo -gopt ;;
3035 *) echo $flag ;;
3036 esac
3037 done
3038 }
3039
3040 suncc_flags(){
3041 for flag; do
3042 case $flag in
3043 -march=*|-mcpu=*)
3044 case "${flag#*=}" in
3045 native) echo -xtarget=native ;;
3046 v9|niagara) echo -xarch=sparc ;;
3047 ultrasparc) echo -xarch=sparcvis ;;
3048 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3049 i586|pentium) echo -xchip=pentium ;;
3050 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3051 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3052 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3053 pentium4*) echo -xtarget=pentium4 ;;
3054 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3055 *-sse3) echo -xarch=sse3 ;;
3056 core2) echo -xarch=ssse3 -xchip=core2 ;;
3057 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3058 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3059 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3060 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3061 k8|opteron|athlon64|athlon-fx)
3062 echo -xarch=sse2a ;;
3063 athlon*) echo -xarch=pentium_proa ;;
3064 esac
3065 ;;
3066 -std=c99) echo -xc99 ;;
3067 -fomit-frame-pointer) echo -xregs=frameptr ;;
3068 -fPIC) echo -KPIC -xcode=pic32 ;;
3069 -W*,*) echo $flag ;;
3070 -f*-*|-W*|-mimpure-text) ;;
3071 -shared) echo -G ;;
3072 *) echo $flag ;;
3073 esac
3074 done
3075 }
3076
3077 tms470_flags(){
3078 for flag; do
3079 case $flag in
3080 -march=*|-mcpu=*)
3081 case "${flag#*=}" in
3082 armv7-a|cortex-a*) echo -mv=7a8 ;;
3083 armv7-r|cortex-r*) echo -mv=7r4 ;;
3084 armv7-m|cortex-m*) echo -mv=7m3 ;;
3085 armv6*|arm11*) echo -mv=6 ;;
3086 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3087 echo -mv=5e ;;
3088 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3089 esac
3090 ;;
3091 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3092 -mfpu=vfp) echo --float_support=vfpv2 ;;
3093 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3094 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3095 -msoft-float) echo --float_support=vfplib ;;
3096 -O[0-3]|-mf=*) echo $flag ;;
3097 -g) echo -g -mn ;;
3098 -pds=*) echo $flag ;;
3099 -D*|-I*) echo $flag ;;
3100 --gcc|--abi=*) echo $flag ;;
3101 -me) echo $flag ;;
3102 esac
3103 done
3104 }
3105
3106 probe_cc(){
3107 pfx=$1
3108 _cc=$2
3109
3110 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3111 unset _ld_o _ldflags _ld_lib _ld_path
3112 unset _depflags _DEPCMD _DEPFLAGS
3113 _flags_filter=echo
3114
3115 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3116 _type=llvm_gcc
3117 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3118 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3119 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3120 _cflags_speed='-O3'
3121 _cflags_size='-Os'
3122 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3123 _type=gcc
3124 gcc_version=$($_cc --version | head -n1)
3125 gcc_basever=$($_cc -dumpversion)
3126 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3127 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3128 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3129 if ! $_cc -dumpversion | grep -q '^2\.'; then
3130 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3131 fi
3132 _cflags_speed='-O3'
3133 _cflags_size='-Os'
3134 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3135 _type=icc
3136 _ident=$($_cc --version | head -n1)
3137 _depflags='-MMD'
3138 _cflags_speed='-O3'
3139 _cflags_size='-Os'
3140 _cflags_noopt='-O1'
3141 elif $_cc -v 2>&1 | grep -q xlc; then
3142 _type=xlc
3143 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3144 _cflags_speed='-O5'
3145 _cflags_size='-O5 -qcompact'
3146 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3147 _type=ccc
3148 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3149 _DEPFLAGS='-M'
3150 _cflags_speed='-fast'
3151 _cflags_size='-O1'
3152 _flags_filter=ccc_flags
3153 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3154 test -d "$sysroot" || die "No valid sysroot specified."
3155 _type=armcc
3156 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3157 armcc_conf="$PWD/armcc.conf"
3158 $_cc --arm_linux_configure \
3159 --arm_linux_config_file="$armcc_conf" \
3160 --configure_sysroot="$sysroot" \
3161 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3162 die "Error creating armcc configuration file."
3163 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3164 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3165 as_default="${cross_prefix}gcc"
3166 _depflags='-MMD'
3167 _cflags_speed='-O3'
3168 _cflags_size='-Os'
3169 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3170 _type=tms470
3171 _ident=$($_cc -version | head -n1 | tr -s ' ')
3172 _flags='--gcc --abi=eabi -me'
3173 _cc_e='-ppl -fe=$@'
3174 _cc_o='-fe=$@'
3175 _depflags='-ppa -ppd=$(@:.o=.d)'
3176 _cflags_speed='-O3 -mf=5'
3177 _cflags_size='-O3 -mf=2'
3178 _flags_filter=tms470_flags
3179 elif $_cc -v 2>&1 | grep -q clang; then
3180 _type=clang
3181 _ident=$($_cc --version 2>/dev/null | head -n1)
3182 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3183 _cflags_speed='-O3'
3184 _cflags_size='-Os'
3185 elif $_cc -V 2>&1 | grep -q Sun; then
3186 _type=suncc
3187 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3188 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3189 _DEPFLAGS='-xM1 -xc99'
3190 _ldflags='-std=c99'
3191 _cflags_speed='-O5'
3192 _cflags_size='-O5 -xspace'
3193 _flags_filter=suncc_flags
3194 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3195 _type=pathscale
3196 _ident=$($_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'
3201 elif $_cc -v 2>&1 | grep -q Open64; then
3202 _type=open64
3203 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3204 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3205 _cflags_speed='-O2'
3206 _cflags_size='-Os'
3207 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3208 elif $_cc -V 2>&1 | grep -q Portland; then
3209 _type=pgi
3210 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3211 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3212 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3213 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3214 _cflags_noopt="-O1"
3215 _flags_filter=pgi_flags
3216 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3217 _type=armasm
3218 _ident=$($_cc | head -n1)
3219 # 4509: "This form of conditional instruction is deprecated"
3220 _flags="-nologo -ignore 4509"
3221 _flags_filter=armasm_flags
3222 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3223 _type=msvc
3224 _ident=$($_cc 2>&1 | head -n1)
3225 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3226 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3227 _cflags_speed="-O2"
3228 _cflags_size="-O1"
3229 if $_cc -nologo- 2>&1 | grep -q Linker; then
3230 _ld_o='-out:$@'
3231 else
3232 _ld_o='-Fe$@'
3233 fi
3234 _cc_o='-Fo$@'
3235 _cc_e='-P -Fi$@'
3236 _flags_filter=msvc_flags
3237 _ld_lib='lib%.a'
3238 _ld_path='-libpath:'
3239 _flags='-nologo'
3240 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3241 elif $_cc 2>&1 | grep -q Intel; then
3242 _type=icl
3243 _ident=$($_cc 2>&1 | head -n1)
3244 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3245 # Not only is O3 broken on 13.x+ but it is slower on all previous
3246 # versions (tested) as well.
3247 _cflags_speed="-O2"
3248 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3249 if $_cc 2>&1 | grep -q Linker; then
3250 _ld_o='-out:$@'
3251 else
3252 _ld_o='-Fe$@'
3253 fi
3254 _cc_o='-Fo$@'
3255 _cc_e='-P'
3256 _flags_filter=icl_flags
3257 _ld_lib='lib%.a'
3258 _ld_path='-libpath:'
3259 # -Qdiag-error to make icl error when seeing certain unknown arguments
3260 _flags='-nologo -Qdiag-error:4044,10157'
3261 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3262 # with MSVC which enables it by default.
3263 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3264 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3265 _type=cparser
3266 _ident=$($_cc --version | head -n1)
3267 _depflags='-MMD'
3268 _cflags_speed='-O4'
3269 _cflags_size='-O2'
3270 _flags_filter=cparser_flags
3271 fi
3272
3273 eval ${pfx}_type=\$_type
3274 eval ${pfx}_ident=\$_ident
3275 }
3276
3277 set_ccvars(){
3278 eval ${1}_C=\${_cc_c-\${${1}_C}}
3279 eval ${1}_E=\${_cc_e-\${${1}_E}}
3280 eval ${1}_O=\${_cc_o-\${${1}_O}}
3281
3282 if [ -n "$_depflags" ]; then
3283 eval ${1}_DEPFLAGS=\$_depflags
3284 else
3285 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3286 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3287 eval DEP${1}FLAGS=\$_flags
3288 fi
3289 }
3290
3291 probe_cc cc "$cc"
3292 cflags_filter=$_flags_filter
3293 cflags_speed=$_cflags_speed
3294 cflags_size=$_cflags_size
3295 cflags_noopt=$_cflags_noopt
3296 add_cflags $_flags $_cflags
3297 cc_ldflags=$_ldflags
3298 set_ccvars CC
3299
3300 probe_cc hostcc "$host_cc"
3301 host_cflags_filter=$_flags_filter
3302 add_host_cflags $_flags $_cflags
3303 set_ccvars HOSTCC
3304
3305 test -n "$cc_type" && enable $cc_type ||
3306 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3307
3308 : ${as_default:=$cc}
3309 : ${objcc_default:=$cc}
3310 : ${dep_cc_default:=$cc}
3311 : ${ld_default:=$cc}
3312 : ${host_ld_default:=$host_cc}
3313 set_default ar as objcc dep_cc ld host_ld
3314
3315 probe_cc as "$as"
3316 asflags_filter=$_flags_filter
3317 add_asflags $_flags $_cflags
3318 set_ccvars AS
3319
3320 probe_cc objcc "$objcc"
3321 objcflags_filter=$_flags_filter
3322 add_objcflags $_flags $_cflags
3323 set_ccvars OBJC
3324
3325 probe_cc ld "$ld"
3326 ldflags_filter=$_flags_filter
3327 add_ldflags $_flags $_ldflags
3328 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3329 LD_O=${_ld_o-$LD_O}
3330 LD_LIB=${_ld_lib-$LD_LIB}
3331 LD_PATH=${_ld_path-$LD_PATH}
3332
3333 probe_cc hostld "$host_ld"
3334 host_ldflags_filter=$_flags_filter
3335 add_host_ldflags $_flags $_ldflags
3336 HOSTLD_O=${_ld_o-$HOSTLD_O}
3337
3338 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3339 probe_cc depcc "$dep_cc"
3340 CCDEP=${_DEPCMD:-$DEPCMD}
3341 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3342 DEPCCFLAGS=$_flags
3343 fi
3344
3345 if $ar 2>&1 | grep -q Microsoft; then
3346 arflags="-nologo"
3347 ar_o='-out:$@'
3348 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3349 arflags="rq"
3350 ar_o='$@'
3351 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3352 arflags='-Xany -r -c'
3353 ar_o='$@'
3354 else
3355 arflags="rc"
3356 ar_o='$@'
3357 fi
3358
3359 add_cflags $extra_cflags
3360 add_objcflags $extra_objcflags
3361 add_asflags $extra_cflags
3362
3363 if test -n "$sysroot"; then
3364 case "$cc_type" in
3365 gcc|llvm_gcc|clang)
3366 add_cppflags --sysroot="$sysroot"
3367 add_ldflags --sysroot="$sysroot"
3368 ;;
3369 tms470)
3370 add_cppflags -I"$sysinclude"
3371 add_ldflags --sysroot="$sysroot"
3372 ;;
3373 esac
3374 fi
3375
3376 if test "$cpu" = host; then
3377 enabled cross_compile &&
3378 die "--cpu=host makes no sense when cross-compiling."
3379
3380 case "$cc_type" in
3381 gcc|llvm_gcc)
3382 check_native(){
3383 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3384 sed -n "/cc1.*$1=/{
3385 s/.*$1=\\([^ ]*\\).*/\\1/
3386 p
3387 q
3388 }" $TMPE
3389 }
3390 cpu=$(check_native -march || check_native -mcpu)
3391 ;;
3392 esac
3393
3394 test "${cpu:-host}" = host &&
3395 die "--cpu=host not supported with compiler $cc"
3396 fi
3397
3398 # Deal with common $arch aliases
3399 case "$arch" in
3400 aarch64|arm64)
3401 arch="aarch64"
3402 ;;
3403 arm*)
3404 arch="arm"
3405 ;;
3406 mips*|IP*)
3407 case "$arch" in
3408 *el)
3409 add_cppflags -EL
3410 add_ldflags -EL
3411 ;;
3412 *eb)
3413 add_cppflags -EB
3414 add_ldflags -EB
3415 ;;
3416 esac
3417 arch="mips"
3418 ;;
3419 parisc*|hppa*)
3420 arch="parisc"
3421 ;;
3422 "Power Macintosh"|ppc*|powerpc*)
3423 arch="ppc"
3424 ;;
3425 s390|s390x)
3426 arch="s390"
3427 ;;
3428 sh4|sh)
3429 arch="sh4"
3430 ;;
3431 sun4u|sparc*)
3432 arch="sparc"
3433 ;;
3434 tilegx|tile-gx)
3435 arch="tilegx"
3436 ;;
3437 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3438 arch="x86"
3439 ;;
3440 esac
3441
3442 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3443 enable $arch
3444
3445 # Add processor-specific flags
3446 if enabled aarch64; then
3447
3448 case $cpu in
3449 armv*)
3450 cpuflags="-march=$cpu"
3451 ;;
3452 *)
3453 cpuflags="-mcpu=$cpu"
3454 ;;
3455 esac
3456
3457 elif enabled alpha; then
3458
3459 cpuflags="-mcpu=$cpu"
3460
3461 elif enabled arm; then
3462
3463 check_arm_arch() {
3464 check_cpp_condition stddef.h \
3465 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3466 $cpuflags
3467 }
3468
3469 probe_arm_arch() {
3470 if check_arm_arch 4; then echo armv4
3471 elif check_arm_arch 4T; then echo armv4t
3472 elif check_arm_arch 5; then echo armv5
3473 elif check_arm_arch 5E; then echo armv5e
3474 elif check_arm_arch 5T; then echo armv5t
3475 elif check_arm_arch 5TE; then echo armv5te
3476 elif check_arm_arch 5TEJ; then echo armv5te
3477 elif check_arm_arch 6; then echo armv6
3478 elif check_arm_arch 6J; then echo armv6j
3479 elif check_arm_arch 6K; then echo armv6k
3480 elif check_arm_arch 6Z; then echo armv6z
3481 elif check_arm_arch 6ZK; then echo armv6zk
3482 elif check_arm_arch 6T2; then echo armv6t2
3483 elif check_arm_arch 7; then echo armv7
3484 elif check_arm_arch 7A 7_A; then echo armv7-a
3485 elif check_arm_arch 7S; then echo armv7-a
3486 elif check_arm_arch 7R 7_R; then echo armv7-r
3487 elif check_arm_arch 7M 7_M; then echo armv7-m
3488 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3489 elif check_arm_arch 8A 8_A; then echo armv8-a
3490 fi
3491 }
3492
3493 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3494
3495 case $cpu in
3496 armv*)
3497 cpuflags="-march=$cpu"
3498 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3499 ;;
3500 *)
3501 cpuflags="-mcpu=$cpu"
3502 case $cpu in
3503 cortex-a*) subarch=armv7a ;;
3504 cortex-r*) subarch=armv7r ;;
3505 cortex-m*) enable thumb; subarch=armv7m ;;
3506 arm11*) subarch=armv6 ;;
3507 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3508 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3509 *) subarch=$(probe_arm_arch) ;;
3510 esac
3511 ;;
3512 esac
3513
3514 case "$subarch" in
3515 armv5t*) enable fast_clz ;;
3516 armv[6-8]*) enable fast_clz fast_unaligned ;;
3517 esac
3518
3519 elif enabled avr32; then
3520
3521 case $cpu in
3522 ap7[02]0[0-2])
3523 subarch="avr32_ap"
3524 cpuflags="-mpart=$cpu"
3525 ;;
3526 ap)
3527 subarch="avr32_ap"
3528 cpuflags="-march=$cpu"
3529 ;;
3530 uc3[ab]*)
3531 subarch="avr32_uc"
3532 cpuflags="-mcpu=$cpu"
3533 ;;
3534 uc)
3535 subarch="avr32_uc"
3536 cpuflags="-march=$cpu"
3537 ;;
3538 esac
3539
3540 elif enabled bfin; then
3541
3542 cpuflags="-mcpu=$cpu"
3543
3544 elif enabled mips; then
3545
3546 cpuflags="-march=$cpu"
3547
3548 elif enabled ppc; then
3549
3550 disable ldbrx
3551
3552 case $(tolower $cpu) in
3553 601|ppc601|powerpc601)
3554 cpuflags="-mcpu=601"
3555 disable altivec
3556 ;;
3557 603*|ppc603*|powerpc603*)
3558 cpuflags="-mcpu=603"
3559 disable altivec
3560 ;;
3561 604*|ppc604*|powerpc604*)
3562 cpuflags="-mcpu=604"
3563 disable altivec
3564 ;;
3565 g3|75*|ppc75*|powerpc75*)
3566 cpuflags="-mcpu=750"
3567 disable altivec
3568 ;;
3569 g4|745*|ppc745*|powerpc745*)
3570 cpuflags="-mcpu=7450"
3571 disable vsx
3572 ;;
3573 74*|ppc74*|powerpc74*)
3574 cpuflags="-mcpu=7400"
3575 disable vsx
3576 ;;
3577 g5|970|ppc970|powerpc970)
3578 cpuflags="-mcpu=970"
3579 disable vsx
3580 ;;
3581 power[3-6]*)
3582 cpuflags="-mcpu=$cpu"
3583 disable vsx
3584 ;;
3585 power[7-8]*)
3586 cpuflags="-mcpu=$cpu"
3587 enable ldbrx
3588 ;;
3589 cell)
3590 cpuflags="-mcpu=cell"
3591 enable ldbrx
3592 disable vsx
3593 ;;
3594 e500mc)
3595 cpuflags="-mcpu=e500mc"
3596 disable altivec
3597 ;;
3598 e500v2)
3599 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3600 disable altivec
3601 disable dcbzl
3602 ;;
3603 e500)
3604 cpuflags="-mcpu=8540 -mhard-float"
3605 disable altivec
3606 disable dcbzl
3607 ;;
3608 esac
3609
3610 elif enabled sparc; then
3611
3612 case $cpu in
3613 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3614 cpuflags="-mcpu=$cpu"
3615 ;;
3616 ultrasparc*|niagara[234])
3617 cpuflags="-mcpu=$cpu"
3618 ;;
3619 esac
3620
3621 elif enabled x86; then
3622
3623 case $cpu in
3624 i[345]86|pentium)
3625 cpuflags="-march=$cpu"
3626 disable i686
3627 disable mmx
3628 ;;
3629 # targets that do NOT support nopl and conditional mov (cmov)
3630 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3631 cpuflags="-march=$cpu"
3632 disable i686
3633 ;;
3634 # targets that do support nopl and conditional mov (cmov)
3635 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3636 cpuflags="-march=$cpu"
3637 enable i686
3638 enable fast_cmov
3639 ;;
3640 # targets that do support conditional mov but on which it's slow
3641 pentium4|pentium4m|prescott|nocona)
3642 cpuflags="-march=$cpu"
3643 enable i686
3644 disable fast_cmov
3645 ;;
3646 esac
3647
3648 fi
3649
3650 if [ "$cpu" != generic ]; then
3651 add_cflags $cpuflags
3652 add_asflags $cpuflags
3653 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3654 fi
3655
3656 # compiler sanity check
3657 check_exec <<EOF
3658 int main(void){ return 0; }
3659 EOF
3660 if test "$?" != 0; then
3661 echo "$cc is unable to create an executable file."
3662 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3663 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3664 echo "Only do this if you know what cross compiling means."
3665 fi
3666 die "C compiler test failed."
3667 fi
3668
3669 add_cppflags -D_ISOC99_SOURCE
3670 check_cflags -std=c99
3671 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3672 #include <stdlib.h>
3673 EOF
3674 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3675 #include <stdlib.h>
3676 EOF
3677
3678 add_host_cppflags -D_ISOC99_SOURCE
3679 check_host_cflags -std=c99
3680 check_host_cflags -Wall
3681 check_host_cflags -O3
3682
3683 check_64bit(){
3684 arch32=$1
3685 arch64=$2
3686 expr=$3
3687 check_code cc "" "int test[2*($expr) - 1]" &&
3688 subarch=$arch64 || subarch=$arch32
3689 }
3690
3691 case "$arch" in
3692 aarch64|alpha|ia64)
3693 spic=$shared
3694 ;;
3695 mips)
3696 check_64bit mips mips64 '_MIPS_SIM > 1'
3697 spic=$shared
3698 ;;
3699 parisc)
3700 check_64bit parisc parisc64 'sizeof(void *) > 4'
3701 spic=$shared
3702 ;;
3703 ppc)
3704 check_64bit ppc ppc64 'sizeof(void *) > 4'
3705 spic=$shared
3706 ;;
3707 s390)
3708 check_64bit s390 s390x 'sizeof(void *) > 4'
3709 spic=$shared
3710 ;;
3711 sparc)
3712 check_64bit sparc sparc64 'sizeof(void *) > 4'
3713 spic=$shared
3714 ;;
3715 x86)
3716 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3717 if test "$subarch" = "x86_64"; then
3718 spic=$shared
3719 fi
3720 ;;
3721 esac
3722
3723 enable $subarch
3724 enabled spic && enable_weak pic
3725
3726 # OS specific
3727 case $target_os in
3728 aix)
3729 SHFLAGS=-shared
3730 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3731 enabled shared && add_ldflags -Wl,-brtl
3732 ;;
3733 android)
3734 disable symver
3735 enable section_data_rel_ro
3736 SLIB_INSTALL_NAME='$(SLIBNAME)'
3737 SLIB_INSTALL_LINKS=
3738 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3739 ;;
3740 haiku)
3741 prefix_default="/boot/common"
3742 network_extralibs="-lnetwork"
3743 host_libs=
3744 ;;
3745 sunos)
3746 SHFLAGS='-shared -Wl,-h,$$(@F)'
3747 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3748 network_extralibs="-lsocket -lnsl"
3749 # When using suncc to build, the Solaris linker will mark
3750 # an executable with each instruction set encountered by
3751 # the Solaris assembler. As our libraries contain their own
3752 # guards for processor-specific code, instead suppress
3753 # generation of the HWCAPS ELF section on Solaris x86 only.
3754 enabled_all suncc x86 &&
3755 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3756 add_ldflags -Wl,-M,mapfile
3757 nm_default='nm -P -g'
3758 version_script='-M'
3759 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3760 ;;
3761 netbsd)
3762 disable symver
3763 oss_indev_extralibs="-lossaudio"
3764 oss_outdev_extralibs="-lossaudio"
3765 ;;
3766 openbsd|bitrig)
3767 disable symver
3768 SHFLAGS='-shared'
3769 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3770 SLIB_INSTALL_LINKS=
3771 oss_indev_extralibs="-lossaudio"
3772 oss_outdev_extralibs="-lossaudio"
3773 ;;
3774 dragonfly)
3775 disable symver
3776 ;;
3777 freebsd)
3778 ;;
3779 bsd/os)
3780 add_extralibs -lpoll -lgnugetopt
3781 ;;
3782 darwin)
3783 enabled ppc && add_asflags -force_cpusubtype_ALL
3784 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3785 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3786 add_ldflags -Wl,-dynamic,-search_paths_first
3787 SLIBSUF=".dylib"
3788 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3789 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3790 objformat="macho"
3791 enabled x86_64 && objformat="macho64"
3792 enabled_any pic shared ||
3793 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3794 check_header dispatch/dispatch.h &&
3795 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3796 ;;
3797 msys*)
3798 die "Native MSYS builds are discouraged, please use the MINGW environment."
3799 ;;
3800 mingw32*|mingw64*)
3801 if test $target_os = "mingw32ce"; then
3802 disable network
3803 else
3804 target_os=mingw32
3805 fi
3806 LIBTARGET=i386
3807 if enabled x86_64; then
3808 LIBTARGET="i386:x86-64"
3809 elif enabled arm; then
3810 LIBTARGET=arm-wince
3811 fi
3812 check_ldflags -Wl,--nxcompat
3813 check_ldflags -Wl,--dynamicbase
3814 shlibdir_default="$bindir_default"
3815 SLIBPREF=""
3816 SLIBSUF=".dll"
3817 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3818 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3819 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3820 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3821 SLIB_INSTALL_LINKS=
3822 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3823 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3824 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3825 objformat="win32"
3826 dlltool="${cross_prefix}dlltool"
3827 ranlib=:
3828 enable dos_paths
3829 ;;
3830 win32|win64)
3831 disable symver
3832 if enabled shared; then
3833 # Link to the import library instead of the normal static library
3834 # for shared libs.
3835 LD_LIB='%.lib'
3836 # Cannot build both shared and static libs with MSVC or icl.
3837 disable static
3838 fi
3839 shlibdir_default="$bindir_default"
3840 SLIBPREF=""
3841 SLIBSUF=".dll"
3842 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3843 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3844 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3845 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3846 SLIB_INSTALL_LINKS=
3847 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3848 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3849 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3850 objformat="win32"
3851 ranlib=:
3852 enable dos_paths
3853 ;;
3854 cygwin*)
3855 target_os=cygwin
3856 shlibdir_default="$bindir_default"
3857 SLIBPREF="cyg"
3858 SLIBSUF=".dll"
3859 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3860 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3861 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3862 SLIB_INSTALL_LINKS=
3863 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3864 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3865 objformat="win32"
3866 enable dos_paths
3867 ;;
3868 *-dos|freedos|opendos)
3869 network_extralibs="-lsocket"
3870 objformat="coff"
3871 enable dos_paths
3872 add_cppflags -U__STRICT_ANSI__
3873 ;;
3874 linux)
3875 enable dv1394
3876 enable section_data_rel_ro
3877 ;;
3878 irix*)
3879 target_os=irix
3880 ranlib="echo ignoring ranlib"
3881 ;;
3882 os/2*)
3883 ln_s="cp -f"
3884 objformat="aout"
3885 add_cppflags -D_GNU_SOURCE
3886 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3887 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3888 LIBSUF="_s.a"
3889 SLIBPREF=""
3890 SLIBSUF=".dll"
3891 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3892 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3893 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3894 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3895 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3896 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3897 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3898 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3899 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3900 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3901 enable dos_paths
3902 ;;
3903 gnu/kfreebsd)
3904 add_cppflags -D_BSD_SOURCE
3905 ;;
3906 gnu)
3907 ;;
3908 qnx)
3909 add_cppflags -D_QNX_SOURCE
3910 network_extralibs="-lsocket"
3911 ;;
3912 symbian)
3913 SLIBSUF=".dll"
3914 enable dos_paths
3915 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3916 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3917 add_ldflags -Wl,--target1-abs,--no-undefined \
3918 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3919 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3920 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3921 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3922 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3923 ;;
3924 osf1)
3925 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3926 ;;
3927 minix)
3928 ;;
3929 plan9)
3930 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3931 -D_REENTRANT_SOURCE \
3932 -D_RESEARCH_SOURCE \
3933 -DFD_SETSIZE=96 \
3934 -DHAVE_SOCK_OPTS
3935 add_compat strtod.o strtod=avpriv_strtod
3936 network_extralibs='-lbsd'
3937 exeobjs=compat/plan9/main.o
3938 cp_f='cp'
3939 ;;
3940 none)
3941 ;;
3942 *)
3943 die "Unknown OS '$target_os'."
3944 ;;
3945 esac
3946
3947 # determine libc flavour
3948
3949 probe_libc(){
3950 pfx=$1
3951 pfx_no_=${pfx%_}
3952 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3953 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3954 eval ${pfx}libc_type=uclibc
3955 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3956 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3957 eval ${pfx}libc_type=glibc
3958 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3959 # MinGW headers can be installed on Cygwin, so check for newlib first.
3960 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3961 eval ${pfx}libc_type=newlib
3962 add_${pfx}cppflags -U__STRICT_ANSI__
3963 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3964 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3965 eval ${pfx}libc_type=mingw64
3966 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3967 eval test \$${pfx_no_}cc_type = "gcc" &&
3968 add_${pfx}cppflags -D__printf__=__gnu_printf__
3969 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3970 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3971 eval ${pfx}libc_type=mingw32
3972 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3973 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3974 die "ERROR: MinGW32 runtime version must be >= 3.15."
3975 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3976 eval test \$${pfx_no_}cc_type = "gcc" &&
3977 add_${pfx}cppflags -D__printf__=__gnu_printf__
3978 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3979 eval ${pfx}libc_type=msvcrt
3980 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3981 if [ "$pfx" = host_ ]; then
3982 add_host_cppflags -Dsnprintf=_snprintf
3983 else
3984 add_compat strtod.o strtod=avpriv_strtod
3985 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3986 _snprintf=avpriv_snprintf \
3987 vsnprintf=avpriv_vsnprintf
3988 fi
3989 fi
3990 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3991 # 0x601 by default unless something else is set by the user.
3992 # This can easily lead to us detecting functions only present
3993 # in such new versions and producing binaries requiring windows 7.0.
3994 # Therefore explicitly set the default to XP unless the user has
3995 # set something else on the command line.
3996 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3997 # family. For these cases, configure is free to use any functions
3998 # found in the SDK headers by default. (Alternatively, we could force
3999 # _WIN32_WINNT to 0x0602 in that case.)
4000 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4001 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4002 #ifdef WINAPI_FAMILY
4003 #include <winapifamily.h>
4004 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4005 #error not desktop
4006 #endif
4007 #endif
4008 EOF
4009 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4010 eval ${pfx}libc_type=klibc
4011 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4012 eval ${pfx}libc_type=bionic
4013 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4014 eval ${pfx}libc_type=solaris
4015 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4016 else
4017 eval ${pfx}libc_type=default
4018 add_${pfx}cppflags -D_DEFAULT_SOURCE
4019 fi
4020 }
4021
4022 probe_libc
4023 test -n "$libc_type" && enable libc_$libc_type
4024 probe_libc host_
4025 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4026
4027 case $libc_type in
4028 bionic)
4029 add_compat strtod.o strtod=avpriv_strtod
4030 ;;
4031 esac
4032
4033 # hacks for compiler/libc/os combinations
4034
4035 if enabled_all tms470 libc_glibc; then
4036 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4037 add_cppflags -D__USER_LABEL_PREFIX__=
4038 add_cppflags -D__builtin_memset=memset
4039 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4040 add_cflags -pds=48 # incompatible redefinition of macro
4041 fi
4042
4043 if enabled_all ccc libc_glibc; then
4044 add_ldflags -Wl,-z,now # calls to libots crash without this
4045 fi
4046
4047 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4048 add_cppflags '-I\$(SRC_PATH)/compat/float'
4049
4050 esc(){
4051 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4052 }
4053
4054 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4055
4056 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4057
4058 set_default $PATHS_LIST
4059 set_default nm
4060
4061 # we need to build at least one lib type
4062 if ! enabled_any static shared; then
4063 cat <<EOF
4064 At least one library type must be built.
4065 Specify --enable-static to build the static libraries or --enable-shared to
4066 build the shared libraries as well. To only build the shared libraries specify
4067 --disable-static in addition to --enable-shared.
4068 EOF
4069 exit 1
4070 fi
4071
4072 die_license_disabled() {
4073 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4074 }
4075
4076 die_license_disabled gpl libcdio
4077 die_license_disabled gpl libx264
4078 die_license_disabled gpl libx265
4079 die_license_disabled gpl libxavs
4080 die_license_disabled gpl libxvid
4081 die_license_disabled gpl x11grab
4082
4083 die_license_disabled nonfree cuda
4084 die_license_disabled nonfree libfaac
4085 die_license_disabled nonfree libfdk_aac
4086 die_license_disabled nonfree libnpp
4087 die_license_disabled nonfree openssl
4088
4089 die_license_disabled version3 libopencore_amrnb
4090 die_license_disabled version3 libopencore_amrwb
4091 die_license_disabled version3 libvo_aacenc
4092 die_license_disabled version3 libvo_amrwbenc
4093
4094 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4095
4096 disabled optimizations || check_cflags -fomit-frame-pointer
4097
4098 enable_weak_pic() {
4099 disabled pic && return
4100 enable pic
4101 add_cppflags -DPIC
4102 case "$target_os" in
4103 mingw*|cygwin*)
4104 ;;
4105 *)
4106 add_cflags -fPIC
4107 ;;
4108 esac
4109 add_asflags -fPIC
4110 }
4111
4112 enabled pic && enable_weak_pic
4113
4114 check_cc <<EOF || die "Symbol mangling check failed."
4115 int ff_extern;
4116 EOF
4117 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4118 extern_prefix=${sym%%ff_extern*}
4119
4120 check_cc <<EOF && enable_weak inline_asm
4121 void foo(void) { __asm__ volatile ("" ::); }
4122 EOF
4123
4124 _restrict=
4125 for restrict_keyword in restrict __restrict__ __restrict; do
4126 check_cc <<EOF && _restrict=$restrict_keyword && break
4127 void foo(char * $restrict_keyword p);
4128 EOF
4129 done
4130
4131 check_cc <<EOF && enable pragma_deprecated
4132 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4133 EOF
4134
4135 check_cc <<EOF && enable attribute_packed
4136 struct { int x; } __attribute__((packed)) x;
4137 EOF
4138
4139 check_cc <<EOF && enable attribute_may_alias
4140 union { int x; } __attribute__((may_alias)) x;
4141 EOF
4142
4143 check_cc <<EOF || die "endian test failed"
4144 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4145 EOF
4146 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4147
4148 check_gas() {
4149 log "check_gas using '$as' as AS"
4150 # :vararg is used on aarch64, arm and ppc altivec
4151 check_as <<EOF || return 1
4152 .macro m n, y:vararg=0
4153 \n: .int \y
4154 .endm
4155 m x
4156 EOF
4157 # .altmacro is only used in arm asm
4158 ! enabled arm || check_as <<EOF || return 1
4159 .altmacro
4160 EOF
4161 enable gnu_as
4162 return 0
4163 }
4164
4165 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4166 nogas=:
4167 enabled_any arm aarch64 && nogas=die
4168 enabled_all ppc altivec && nogas=warn
4169 as_noop=-v
4170
4171 case $as_type in
4172 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4173 gcc) gaspp_as_type=gas ;;
4174 *) gaspp_as_type=$as_type ;;
4175 esac
4176
4177 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4178
4179 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4180 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4181
4182 if ! check_gas ; then
4183 as=${gas:=$as}
4184 check_gas || \
4185 $nogas "GNU assembler not found, install/update gas-preprocessor"
4186 fi
4187
4188 check_as <<EOF && enable as_func
4189 .func test
4190 .endfunc
4191 EOF
4192 fi
4193
4194 check_inline_asm inline_asm_labels '"1:\n"'
4195
4196 if enabled aarch64; then
4197 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4198 # internal assembler in clang 3.3 does not support this instruction
4199 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4200 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4201
4202 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4203
4204 elif enabled alpha; then
4205
4206 check_cflags -mieee
4207
4208 elif enabled arm; then
4209
4210 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4211 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4212 enabled thumb && check_cflags -mthumb || check_cflags -marm
4213
4214 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4215 enable vfp_args
4216 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4217 enable vfp_args
4218 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4219 case "${cross_prefix:-$cc}" in
4220 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4221 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4222 __asm__ (".eabi_attribute 28, 1");
4223 int main(void) { return 0; }
4224 EOF
4225 esac
4226 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4227 fi
4228
4229 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4230 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4231 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4232 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4233 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4234 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4235
4236 [ $target_os = linux ] || [ $target_os = android ] ||
4237 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4238 $ARCH_EXT_LIST_ARM
4239
4240 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4241
4242 check_as <<EOF && enable as_dn_directive
4243 ra .dn d0.i16
4244 .unreq ra
4245 EOF
4246
4247 # llvm's integrated assembler supports .object_arch from llvm 3.5
4248 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4249 .object_arch armv4
4250 EOF
4251
4252 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4253
4254 elif enabled mips; then
4255
4256 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4257
4258 # make sure that only an instruction set is enabled
4259 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4260
4261 if enabled mips64; then
4262 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4263 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4264 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4265 else
4266 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4267 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4268 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4269 fi
4270
4271 elif enabled parisc; then
4272
4273 if enabled gcc; then
4274 case $($cc -dumpversion) in
4275 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4276 esac
4277 fi
4278
4279 elif enabled ppc; then
4280
4281 enable local_aligned_8 local_aligned_16
4282
4283 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4284 check_inline_asm ibm_asm '"add 0, 0, 0"'
4285 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4286 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4287
4288 # AltiVec flags: The FSF version of GCC differs from the Apple version
4289 if enabled altivec; then
4290 check_cflags -maltivec -mabi=altivec &&
4291 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4292 check_cflags -faltivec
4293
4294 # check if our compiler supports Motorola AltiVec C API
4295 check_cc <<EOF || disable altivec
4296 $inc_altivec_h
4297 int main(void) {
4298 vector signed int v1 = (vector signed int) { 0 };
4299 vector signed int v2 = (vector signed int) { 1 };
4300 v1 = vec_add(v1, v2);
4301 return 0;
4302 }
4303 EOF
4304
4305 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4306 fi
4307
4308 if enabled vsx; then
4309 check_cflags -mvsx &&
4310 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4311 fi
4312
4313 if enabled power8; then
4314 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4315 fi
4316
4317 elif enabled x86; then
4318
4319 check_builtin rdtsc intrin.h "__rdtsc()"
4320 check_builtin mm_empty mmintrin.h "_mm_empty()"
4321
4322 enable local_aligned_8 local_aligned_16
4323
4324 # check whether EBP is available on x86
4325 # As 'i' is stored on the stack, this program will crash
4326 # if the base pointer is used to access it because the
4327 # base pointer is cleared in the inline assembly code.
4328 check_exec_crash <<EOF && enable ebp_available
4329 volatile int i=0;
4330 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4331 return i;
4332 EOF
4333
4334 # check whether EBX is available on x86
4335 check_inline_asm ebx_available '""::"b"(0)' &&
4336 check_inline_asm ebx_available '"":::"%ebx"'
4337
4338 # check whether xmm clobbers are supported
4339 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4340
4341 # check whether binutils is new enough to compile SSSE3/MMXEXT
4342 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4343 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4344
4345 if ! disabled_any asm mmx yasm; then
4346 if check_cmd $yasmexe --version; then
4347 enabled x86_64 && yasm_extra="-m amd64"
4348 yasm_debug="-g dwarf2"
4349 elif check_cmd nasm -v; then
4350 yasmexe=nasm
4351 yasm_debug="-g -F dwarf"
4352 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4353 fi
4354
4355 YASMFLAGS="-f $objformat $yasm_extra"
4356 enabled pic && append YASMFLAGS "-DPIC"
4357 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4358 case "$objformat" in
4359 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4360 esac
4361
4362 check_yasm "movbe ecx, [5]" && enable yasm ||
4363 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4364 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4365 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4366 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4367 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4368 check_yasm "CPU amdnop" || disable cpunop
4369 fi
4370
4371 case "$cpu" in
4372 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4373 disable fast_clz
4374 ;;
4375 esac
4376
4377 fi
4378
4379 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4380
4381 check_ldflags -