configure: Factorize qsv dependencies
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
241 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
242 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
243 --enable-libnpp Nvidia CUDA processing
244 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
245 --enable-nvenc Nvidia video encoding
246 --enable-omx OpenMAX IL
247 --enable-omx-rpi OpenMAX IL for Raspberry Pi
248 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
249 --enable-vda Apple Video Decode Acceleration [auto]
250 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251
252 Toolchain options:
253 --arch=ARCH select architecture [$arch]
254 --cpu=CPU select the minimum required CPU (affects
255 instruction selection, may crash on older CPUs)
256 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
257 --enable-cross-compile assume a cross-compiler is used
258 --sysroot=PATH root of cross-build tree
259 --sysinclude=PATH location of cross-build system headers
260 --target-os=OS compiler targets OS [$target_os]
261 --target-exec=CMD command to run executables on target
262 --target-path=DIR path to view of build directory on target
263 --target-samples=DIR path to samples directory on target
264 --toolchain=NAME set tool defaults according to NAME
265 --nm=NM use nm tool
266 --ar=AR use archive tool AR [$ar_default]
267 --as=AS use assembler AS [$as_default]
268 --cc=CC use C compiler CC [$cc_default]
269 --objcc=OCC use ObjC compiler OCC [$cc_default]
270 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
271 --ld=LD use linker LD
272 --x86asmexe=X86ASM use x86 assembler X86ASM
273 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
274 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
275 --host-cc=HOSTCC use host C compiler HOSTCC
276 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
277 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
278 --host-ld=HOSTLD use host linker HOSTLD
279 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
280 --host-libs=HLIBS use libs HLIBS when linking for host
281 --host-os=OS compiler host OS [$target_os]
282 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
283 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
284 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
285 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
286 --extra-libs=ELIBS add ELIBS [$ELIBS]
287 --extra-version=STRING version string suffix []
288 --optflags=OPTFLAGS override optimization-related compiler flags
289 --enable-pic build position-independent code
290 --enable-thumb compile for Thumb instruction set
291 --enable-lto use link-time optimization
292 --env="ENV=override" override the environment variables
293
294 Advanced options (experts only):
295 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
296 --custom-allocator=NAME use a supported custom allocator
297 --disable-symver disable symbol versioning
298 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
299 --disable-safe-bitstream-reader
300 disable buffer boundary checking in bitreaders
301 (faster, but may crash)
302 --enable-sram allow use of on-chip SRAM
303
304 Optimization options (experts only):
305 --disable-asm disable all assembly optimizations
306 --disable-altivec disable AltiVec optimizations
307 --disable-vsx disable VSX optimizations
308 --disable-power8 disable POWER8 optimizations
309 --disable-amd3dnow disable 3DNow! optimizations
310 --disable-amd3dnowext disable 3DNow! extended optimizations
311 --disable-mmx disable MMX optimizations
312 --disable-mmxext disable MMXEXT optimizations
313 --disable-sse disable SSE optimizations
314 --disable-sse2 disable SSE2 optimizations
315 --disable-sse3 disable SSE3 optimizations
316 --disable-ssse3 disable SSSE3 optimizations
317 --disable-sse4 disable SSE4 optimizations
318 --disable-sse42 disable SSE4.2 optimizations
319 --disable-avx disable AVX optimizations
320 --disable-xop disable XOP optimizations
321 --disable-fma3 disable FMA3 optimizations
322 --disable-fma4 disable FMA4 optimizations
323 --disable-avx2 disable AVX2 optimizations
324 --disable-armv5te disable armv5te optimizations
325 --disable-armv6 disable armv6 optimizations
326 --disable-armv6t2 disable armv6t2 optimizations
327 --disable-vfp disable VFP optimizations
328 --disable-neon disable NEON optimizations
329 --disable-inline-asm disable use of inline assembly
330 --disable-x86asm disable use of standalone x86 assembly
331
332 Developer options (useful when working on Libav itself):
333 --disable-debug disable debugging symbols
334 --enable-debug=LEVEL set the debug level [$debuglevel]
335 --disable-optimizations disable compiler optimizations
336 --enable-extra-warnings enable more compiler warnings
337 --samples=PATH location of test samples for FATE, if not set use
338 \$LIBAV_SAMPLES at make invocation time.
339 --enable-neon-clobber-test check NEON registers for clobbering (should be
340 used only for debugging purposes)
341 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
342 should be used only for debugging purposes)
343 --enable-random randomly enable/disable components
344 --disable-random
345 --enable-random=LIST randomly enable/disable specific components or
346 --disable-random=LIST component groups. LIST is a comma-separated list
347 of NAME[:PROB] entries where NAME is a component
348 (group) and PROB the probability associated with
349 NAME (default 0.5).
350 --random-seed=VALUE seed value for --enable/disable-random
351 --disable-valgrind-backtrace do not print a backtrace under Valgrind
352 (only applies to --disable-optimizations builds)
353 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
354 in the name) of tests whose result is ignored
355
356 NOTE: Object files are built at the place where configure is launched.
357 EOF
358 exit 0
359 }
360
361 quotes='""'
362
363 log(){
364 echo "$@" >> $logfile
365 }
366
367 log_file(){
368 log BEGIN $1
369 i=1
370 while read line; do
371 printf '%5s %s\n' "${i}" "${line}"
372 i=$(($i+1))
373 done < $1 >> $logfile
374 log END $1
375 }
376
377 echolog(){
378 log "$@"
379 echo "$@"
380 }
381
382 warn(){
383 log "WARNING: $*"
384 WARNINGS="${WARNINGS}WARNING: $*\n"
385 }
386
387 die(){
388 echolog "$@"
389 cat <<EOF
390
391 If you think configure made a mistake, make sure you are using the latest
392 version from Git. If the latest version fails, report the problem to the
393 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
394 EOF
395 if disabled logging; then
396 cat <<EOF
397 Rerun configure with logging enabled (do not use --disable-logging), and
398 include the log this produces with your report.
399 EOF
400 else
401 cat <<EOF
402 Include the log file "$logfile" produced by configure as this will help
403 solving the problem.
404 EOF
405 fi
406 exit 1
407 }
408
409 # Avoid locale weirdness, besides we really just want to translate ASCII.
410 toupper(){
411 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
412 }
413
414 tolower(){
415 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
416 }
417
418 c_escape(){
419 echo "$*" | sed 's/["\\]/\\\0/g'
420 }
421
422 sh_quote(){
423 v=$(echo "$1" | sed "s/'/'\\\\''/g")
424 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
425 echo "$v"
426 }
427
428 cleanws(){
429 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
430 }
431
432 filter(){
433 pat=$1
434 shift
435 for v; do
436 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
437 done
438 }
439
440 filter_out(){
441 pat=$1
442 shift
443 for v; do
444 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
445 done
446 }
447
448 map(){
449 m=$1
450 shift
451 for v; do eval $m; done
452 }
453
454 add_suffix(){
455 suffix=$1
456 shift
457 for v; do echo ${v}${suffix}; done
458 }
459
460 set_all(){
461 value=$1
462 shift
463 for var in $*; do
464 eval $var=$value
465 done
466 }
467
468 set_weak(){
469 value=$1
470 shift
471 for var; do
472 eval : \${$var:=$value}
473 done
474 }
475
476 sanitize_var_name(){
477 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
478 }
479
480 set_sanitized(){
481 var=$1
482 shift
483 eval $(sanitize_var_name "$var")='$*'
484 }
485
486 get_sanitized(){
487 eval echo \$$(sanitize_var_name "$1")
488 }
489
490 pushvar(){
491 for pvar in $*; do
492 eval level=\${${pvar}_level:=0}
493 eval ${pvar}_${level}="\$$pvar"
494 eval ${pvar}_level=$(($level+1))
495 done
496 }
497
498 popvar(){
499 for pvar in $*; do
500 eval level=\${${pvar}_level:-0}
501 test $level = 0 && continue
502 eval level=$(($level-1))
503 eval $pvar="\${${pvar}_${level}}"
504 eval ${pvar}_level=$level
505 eval unset ${pvar}_${level}
506 done
507 }
508
509 enable(){
510 set_all yes $*
511 }
512
513 disable(){
514 set_all no $*
515 }
516
517 enable_weak(){
518 set_weak yes $*
519 }
520
521 disable_weak(){
522 set_weak no $*
523 }
524
525 enable_sanitized(){
526 for var; do
527 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 disable_sanitized(){
532 for var; do
533 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
534 done
535 }
536
537 do_enable_deep(){
538 for var; do
539 enabled $var && continue
540 eval sel="\$${var}_select"
541 eval sgs="\$${var}_suggest"
542 pushvar var sgs
543 enable_deep $sel
544 popvar sgs
545 enable_deep_weak $sgs
546 popvar var
547 done
548 }
549
550 enable_deep(){
551 do_enable_deep $*
552 enable $*
553 }
554
555 enable_deep_weak(){
556 for var; do
557 disabled $var && continue
558 pushvar var
559 do_enable_deep $var
560 popvar var
561 enable_weak $var
562 done
563 }
564
565 enabled(){
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xyes"
568 }
569
570 disabled(){
571 test "${1#!}" = "$1" && op== || op=!=
572 eval test "x\$${1#!}" $op "xno"
573 }
574
575 enabled_all(){
576 for opt; do
577 enabled $opt || return 1
578 done
579 }
580
581 disabled_all(){
582 for opt; do
583 disabled $opt || return 1
584 done
585 }
586
587 enabled_any(){
588 for opt; do
589 enabled $opt && return 0
590 done
591 }
592
593 disabled_any(){
594 for opt; do
595 disabled $opt && return 0
596 done
597 return 1
598 }
599
600 set_default(){
601 for opt; do
602 eval : \${$opt:=\$${opt}_default}
603 done
604 }
605
606 is_in(){
607 value=$1
608 shift
609 for var in $*; do
610 [ $var = $value ] && return 0
611 done
612 return 1
613 }
614
615 check_deps(){
616 for cfg; do
617 enabled ${cfg}_checking && die "Circular dependency for $cfg."
618 disabled ${cfg}_checking && continue
619 enable ${cfg}_checking
620 append allopts $cfg
621
622 eval dep_all="\$${cfg}_deps"
623 eval dep_any="\$${cfg}_deps_any"
624 eval dep_con="\$${cfg}_conflict"
625 eval dep_sel="\$${cfg}_select"
626 eval dep_sgs="\$${cfg}_suggest"
627 eval dep_ifa="\$${cfg}_if"
628 eval dep_ifn="\$${cfg}_if_any"
629
630 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
631 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
632 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
633
634 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
635 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
636 enabled_all $dep_all || disable $cfg
637 enabled_any $dep_any || disable $cfg
638 disabled_all $dep_con || disable $cfg
639 disabled_any $dep_sel && disable $cfg
640
641 if enabled $cfg; then
642 enable_deep $dep_sel
643 enable_deep_weak $dep_sgs
644 for dep in $dep_all $dep_any $dep_sgs; do
645 # filter out library deps, these do not belong in extralibs
646 is_in $dep $LIBRARY_LIST && continue
647 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648 done
649 fi
650
651 disable ${cfg}_checking
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 resolve(){
710 var=$1
711 tmpvar=
712 for entry in $(eval echo \$$var); do
713 tmpvar="$tmpvar $(eval echo \$${entry})"
714 done
715 eval "$var=\"${tmpvar}\""
716 }
717
718 add_cppflags(){
719 append CPPFLAGS "$@"
720 }
721
722 add_cflags(){
723 append CFLAGS $($cflags_filter "$@")
724 }
725
726 add_cflags_headers(){
727 append CFLAGS_HEADERS $($cflags_filter "$@")
728 }
729
730 add_asflags(){
731 append ASFLAGS $($asflags_filter "$@")
732 }
733
734 add_objcflags(){
735 append OBJCFLAGS $($objcflags_filter "$@")
736 }
737
738 add_ldflags(){
739 append LDFLAGS $($ldflags_filter "$@")
740 }
741
742 add_ldexeflags(){
743 append LDEXEFLAGS $($ldflags_filter "$@")
744 }
745
746 add_stripflags(){
747 append STRIPFLAGS "$@"
748 }
749
750 add_extralibs(){
751 prepend extralibs $($ldflags_filter "$@")
752 }
753
754 add_host_cppflags(){
755 append host_cppflags "$@"
756 }
757
758 add_host_cflags(){
759 append host_cflags $($host_cflags_filter "$@")
760 }
761
762 add_host_ldflags(){
763 append host_ldflags $($host_ldflags_filter "$@")
764 }
765
766 add_compat(){
767 append compat_objs $1
768 shift
769 map 'add_cppflags -D$v' "$@"
770 }
771
772 check_cmd(){
773 log "$@"
774 "$@" >> $logfile 2>&1
775 }
776
777 cc_o(){
778 eval printf '%s\\n' $CC_O
779 }
780
781 cc_e(){
782 eval printf '%s\\n' $CC_E
783 }
784
785 check_cc(){
786 log check_cc "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
790 }
791
792 check_objcc(){
793 log check_objcc "$@"
794 cat > $TMPC
795 log_file $TMPC
796 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
797 }
798
799 check_cpp(){
800 log check_cpp "$@"
801 cat > $TMPC
802 log_file $TMPC
803 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
804 }
805
806 as_o(){
807 eval printf '%s\\n' $AS_O
808 }
809
810 check_as(){
811 log check_as "$@"
812 cat > $TMPS
813 log_file $TMPS
814 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
815 }
816
817 check_inline_asm(){
818 log check_inline_asm "$@"
819 name="$1"
820 code="$2"
821 shift 2
822 disable $name
823 check_cc "$@" <<EOF && enable $name
824 void foo(void){ __asm__ volatile($code); }
825 EOF
826 }
827
828 check_insn(){
829 log check_insn "$@"
830 check_inline_asm ${1}_inline "\"$2\""
831 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
832 }
833
834 check_x86asm(){
835 log check_x86asm "$@"
836 echo "$1" > $TMPS
837 log_file $TMPS
838 shift 1
839 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
840 }
841
842 ld_o(){
843 eval printf '%s\\n' $LD_O
844 }
845
846 check_ld(){
847 log check_ld "$@"
848 flags=$(filter_out '-l*' "$@")
849 libs=$(filter '-l*' "$@")
850 check_cc $($cflags_filter $flags) || return
851 flags=$($ldflags_filter $flags)
852 libs=$($ldflags_filter $libs)
853 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
854 }
855
856 print_include(){
857 hdr=$1
858 test "${hdr%.h}" = "${hdr}" &&
859 echo "#include $hdr" ||
860 echo "#include <$hdr>"
861 }
862
863 check_code(){
864 log check_code "$@"
865 check=$1
866 headers=$2
867 code=$3
868 shift 3
869 {
870 for hdr in $headers; do
871 print_include $hdr
872 done
873 echo "int main(void) { $code; return 0; }"
874 } | check_$check "$@"
875 }
876
877 check_cppflags(){
878 log check_cppflags "$@"
879 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
880 #include <stdlib.h>;
881 EOF
882 }
883
884 test_cflags(){
885 log test_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_cc "$@" <<EOF
888 int x;
889 EOF
890 }
891
892 check_cflags(){
893 log check_cflags "$@"
894 test_cflags "$@" && add_cflags "$@"
895 }
896
897 test_objcflags(){
898 log test_objcflags "$@"
899 set -- $($objcflags_filter "$@")
900 check_objcc "$@" <<EOF
901 int x;
902 EOF
903 }
904
905 check_objcflags(){
906 log check_objcflags "$@"
907 test_objcflags "$@" && add_objcflags "$@"
908 }
909
910 test_ldflags(){
911 log test_ldflags "$@"
912 check_ld "$@" <<EOF
913 int main(void){ return 0; }
914 EOF
915 }
916
917 check_ldflags(){
918 log check_ldflags "$@"
919 test_ldflags "$@" && add_ldflags "$@"
920 }
921
922 test_stripflags(){
923 log test_stripflags "$@"
924 # call check_cc to get a fresh TMPO
925 check_cc <<EOF
926 int main(void) { return 0; }
927 EOF
928 check_cmd $strip $STRIPFLAGS "$@" $TMPO
929 }
930
931 check_stripflags(){
932 log check_stripflags "$@"
933 test_stripflags "$@" && add_stripflags "$@"
934 }
935
936 check_header(){
937 log check_header "$@"
938 header=$1
939 shift
940 disable_sanitized $header
941 check_cpp "$@" <<EOF && enable_sanitized $header
942 #include <$header>
943 int x;
944 EOF
945 }
946
947 check_func(){
948 log check_func "$@"
949 func=$1
950 shift
951 disable $func
952 check_ld "$@" <<EOF && enable $func
953 extern int $func();
954 int main(void){ $func(); }
955 EOF
956 }
957
958 check_mathfunc(){
959 log check_mathfunc "$@"
960 func=$1
961 narg=$2
962 shift 2
963 test $narg = 2 && args="f, g" || args="f"
964 disable $func
965 check_ld "$@" <<EOF && enable $func
966 #include <math.h>
967 float foo(float f, float g) { return $func($args); }
968 int main(void){ return 0; }
969 EOF
970 }
971
972 check_func_headers(){
973 log check_func_headers "$@"
974 headers=$1
975 funcs=$2
976 shift 2
977 {
978 for hdr in $headers; do
979 print_include $hdr
980 done
981 for func in $funcs; do
982 echo "long check_$func(void) { return (long) $func; }"
983 done
984 echo "int main(void) { return 0; }"
985 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
986 }
987
988 check_cpp_condition(){
989 log check_cpp_condition "$@"
990 header=$1
991 condition=$2
992 shift 2
993 check_cpp "$@" <<EOF
994 #include <$header>
995 #if !($condition)
996 #error "unsatisfied condition: $condition"
997 #endif
998 EOF
999 }
1000
1001 test_cflags_cpp(){
1002 log test_cflags_cpp "$@"
1003 flags=$1
1004 condition=$2
1005 shift 2
1006 set -- $($cflags_filter "$flags")
1007 check_cpp "$@" <<EOF
1008 #if !($condition)
1009 #error "unsatisfied condition: $condition"
1010 #endif
1011 EOF
1012 }
1013
1014 check_lib(){
1015 log check_lib "$@"
1016 name="$1"
1017 headers="$2"
1018 funcs="$3"
1019 shift 3
1020 disable $name
1021 check_func_headers "$headers" "$funcs" "$@" &&
1022 enable $name && eval ${name}_extralibs="\$@"
1023 }
1024
1025 check_pkg_config(){
1026 log check_pkg_config "$@"
1027 name="$1"
1028 pkg_version="$2"
1029 pkg="${2%% *}"
1030 headers="$3"
1031 funcs="$4"
1032 shift 4
1033 disable $name
1034 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1035 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1036 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1037 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1038 enable $name &&
1039 add_cflags "$pkg_cflags" &&
1040 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1041 }
1042
1043 check_exec(){
1044 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1045 }
1046
1047 check_exec_crash(){
1048 log check_exec_crash "$@"
1049 code=$(cat)
1050
1051 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1052 # are safe but may not be available everywhere. Thus we use
1053 # raise(SIGTERM) instead. The check is run in a subshell so we
1054 # can redirect the "Terminated" message from the shell. SIGBUS
1055 # is not defined by standard C so it is used conditionally.
1056
1057 (check_exec "$@") >> $logfile 2>&1 <<EOF
1058 #include <signal.h>
1059 static void sighandler(int sig){
1060 raise(SIGTERM);
1061 }
1062 int foo(void){
1063 $code
1064 }
1065 int (*func_ptr)(void) = foo;
1066 int main(void){
1067 signal(SIGILL, sighandler);
1068 signal(SIGFPE, sighandler);
1069 signal(SIGSEGV, sighandler);
1070 #ifdef SIGBUS
1071 signal(SIGBUS, sighandler);
1072 #endif
1073 return func_ptr();
1074 }
1075 EOF
1076 }
1077
1078 check_type(){
1079 log check_type "$@"
1080 headers=$1
1081 type=$2
1082 shift 2
1083 disable_sanitized "$type"
1084 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1085 }
1086
1087 check_struct(){
1088 log check_struct "$@"
1089 headers=$1
1090 struct=$2
1091 member=$3
1092 shift 3
1093 disable_sanitized "${struct}_${member}"
1094 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1095 enable_sanitized "${struct}_${member}"
1096 }
1097
1098 check_builtin(){
1099 log check_builtin "$@"
1100 name=$1
1101 headers=$2
1102 builtin=$3
1103 shift 3
1104 disable "$name"
1105 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1106 }
1107
1108 check_compile_assert(){
1109 log check_compile_assert "$@"
1110 name=$1
1111 headers=$2
1112 condition=$3
1113 shift 3
1114 disable "$name"
1115 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1116 }
1117
1118 require(){
1119 log require "$@"
1120 name_version="$1"
1121 name="${1%% *}"
1122 headers="$2"
1123 func="$3"
1124 shift 3
1125 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1126 }
1127
1128 require_header(){
1129 log require "$@"
1130 header="$1"
1131 shift
1132 check_header "$header" "$@" || die "ERROR: $header not found"
1133 }
1134
1135 require_cpp_condition(){
1136 log require "$@"
1137 header="$1"
1138 condition="$2"
1139 shift 2
1140 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1141 }
1142
1143 require_pkg_config(){
1144 log require_pkg_config "$@"
1145 pkg_version="$2"
1146 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1147 }
1148
1149 hostcc_e(){
1150 eval printf '%s\\n' $HOSTCC_E
1151 }
1152
1153 hostcc_o(){
1154 eval printf '%s\\n' $HOSTCC_O
1155 }
1156
1157 check_host_cc(){
1158 log check_host_cc "$@"
1159 cat > $TMPC
1160 log_file $TMPC
1161 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1162 }
1163
1164 check_host_cpp(){
1165 log check_host_cpp "$@"
1166 cat > $TMPC
1167 log_file $TMPC
1168 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1169 }
1170
1171 check_host_cppflags(){
1172 log check_host_cppflags "$@"
1173 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1174 #include <stdlib.h>;
1175 EOF
1176 }
1177
1178 check_host_cflags(){
1179 log check_host_cflags "$@"
1180 set -- $($host_cflags_filter "$@")
1181 check_host_cc "$@" <<EOF && append host_cflags "$@"
1182 int x;
1183 EOF
1184 }
1185
1186 check_host_cpp_condition(){
1187 log check_host_cpp_condition "$@"
1188 header=$1
1189 condition=$2
1190 shift 2
1191 check_host_cpp "$@" <<EOF
1192 #include <$header>
1193 #if !($condition)
1194 #error "unsatisfied condition: $condition"
1195 #endif
1196 EOF
1197 }
1198
1199 apply(){
1200 file=$1
1201 shift
1202 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1203 }
1204
1205 cp_if_changed(){
1206 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1207 mkdir -p "$(dirname $2)"
1208 cp -f "$1" "$2"
1209 }
1210
1211 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1212 # system-dependent things.
1213
1214 AVCODEC_COMPONENTS="
1215 bsfs
1216 decoders
1217 encoders
1218 hwaccels
1219 parsers
1220 "
1221
1222 AVDEVICE_COMPONENTS="
1223 indevs
1224 outdevs
1225 "
1226 AVFILTER_COMPONENTS="
1227 filters
1228 "
1229 AVFORMAT_COMPONENTS="
1230 demuxers
1231 muxers
1232 protocols
1233 "
1234
1235 AVRESAMPLE_COMPONENTS=""
1236 AVUTIL_COMPONENTS=""
1237
1238 COMPONENT_LIST="
1239 $AVCODEC_COMPONENTS
1240 $AVDEVICE_COMPONENTS
1241 $AVFILTER_COMPONENTS
1242 $AVFORMAT_COMPONENTS
1243 $AVRESAMPLE_COMPONENTS
1244 $AVUTIL_COMPONENTS
1245 "
1246
1247 EXAMPLE_LIST="
1248 decode_audio_example
1249 decode_video_example
1250 encode_audio_example
1251 encode_video_example
1252 filter_audio_example
1253 metadata_example
1254 output_example
1255 qsvdec_example
1256 transcode_aac_example
1257 "
1258
1259 # catchall list of things that require external libs to link
1260 EXTRALIBS_LIST="
1261 cpu_init
1262 cws2fws
1263 "
1264
1265 HWACCEL_LIBRARY_NONFREE_LIST="
1266 cuda
1267 libnpp
1268 "
1269 HWACCEL_LIBRARY_LIST="
1270 $HWACCEL_LIBRARY_NONFREE_LIST
1271 d3d11va
1272 dxva2
1273 libmfx
1274 mmal
1275 nvenc
1276 omx
1277 vaapi
1278 vda
1279 vdpau
1280 "
1281
1282 EXTERNAL_LIBRARY_GPL_LIST="
1283 libcdio
1284 libx264
1285 libx265
1286 libxavs
1287 libxvid
1288 "
1289
1290 EXTERNAL_LIBRARY_NONFREE_LIST="
1291 libfaac
1292 libfdk_aac
1293 openssl
1294 "
1295
1296 EXTERNAL_LIBRARY_VERSION3_LIST="
1297 libopencore_amrnb
1298 libopencore_amrwb
1299 libvo_aacenc
1300 libvo_amrwbenc
1301 "
1302
1303 EXTERNAL_LIBRARY_LIST="
1304 $EXTERNAL_LIBRARY_GPL_LIST
1305 $EXTERNAL_LIBRARY_NONFREE_LIST
1306 $EXTERNAL_LIBRARY_VERSION3_LIST
1307 avisynth
1308 avxsynth
1309 frei0r
1310 gnutls
1311 libbs2b
1312 libdc1394
1313 libdcadec
1314 libfontconfig
1315 libfreetype
1316 libgsm
1317 libhdcd
1318 libilbc
1319 libjack
1320 libkvazaar
1321 libmp3lame
1322 libopencv
1323 libopenh264
1324 libopenjpeg
1325 libopus
1326 libpulse
1327 librtmp
1328 libschroedinger
1329 libsnappy
1330 libspeex
1331 libtheora
1332 libtwolame
1333 libvorbis
1334 libvpx
1335 libwavpack
1336 libwebp
1337 libxcb
1338 libxcb_shm
1339 libxcb_xfixes
1340 "
1341
1342 SYSTEM_LIBRARY_LIST="
1343 bzlib
1344 zlib
1345 "
1346
1347 FEATURE_LIST="
1348 gray
1349 hardcoded_tables
1350 omx_rpi
1351 runtime_cpudetect
1352 safe_bitstream_reader
1353 shared
1354 small
1355 sram
1356 static
1357 swscale_alpha
1358 "
1359
1360 LIBRARY_LIST="
1361 avcodec
1362 avdevice
1363 avfilter
1364 avformat
1365 avresample
1366 avutil
1367 swscale
1368 "
1369
1370 LICENSE_LIST="
1371 gpl
1372 nonfree
1373 version3
1374 "
1375
1376 PROGRAM_LIST="
1377 avconv
1378 avplay
1379 avprobe
1380 "
1381
1382 SUBSYSTEM_LIST="
1383 dct
1384 doc
1385 error_resilience
1386 faan
1387 fft
1388 lsp
1389 lzo
1390 mdct
1391 network
1392 rdft
1393 "
1394
1395 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1396 CONFIG_LIST="
1397 $EXAMPLE_LIST
1398 $EXTERNAL_LIBRARY_LIST
1399 $HWACCEL_LIBRARY_LIST
1400 $FEATURE_LIST
1401 $LICENSE_LIST
1402 $LIBRARY_LIST
1403 $PROGRAM_LIST
1404 $SUBSYSTEM_LIST
1405 $SYSTEM_LIBRARY_LIST
1406 neon_clobber_test
1407 pic
1408 pod2man
1409 texi2html
1410 thumb
1411 valgrind_backtrace
1412 xmm_clobber_test
1413 $COMPONENT_LIST
1414 "
1415
1416 THREADS_LIST="
1417 pthreads
1418 w32threads
1419 "
1420
1421 ATOMICS_LIST="
1422 atomics_gcc
1423 atomics_suncc
1424 atomics_win32
1425 "
1426
1427 ARCH_LIST="
1428 aarch64
1429 alpha
1430 arm
1431 avr32
1432 avr32_ap
1433 avr32_uc
1434 bfin
1435 ia64
1436 m68k
1437 mips
1438 mips64
1439 parisc
1440 ppc
1441 ppc64
1442 s390
1443 sh4
1444 sparc
1445 sparc64
1446 tilegx
1447 tilepro
1448 tomi
1449 x86
1450 x86_32
1451 x86_64
1452 "
1453
1454 ARCH_EXT_LIST_ARM="
1455 armv5te
1456 armv6
1457 armv6t2
1458 armv8
1459 neon
1460 vfp
1461 vfpv3
1462 "
1463
1464 ARCH_EXT_LIST_X86_SIMD="
1465 amd3dnow
1466 amd3dnowext
1467 avx
1468 avx2
1469 fma3
1470 fma4
1471 mmx
1472 mmxext
1473 sse
1474 sse2
1475 sse3
1476 sse4
1477 sse42
1478 ssse3
1479 xop
1480 "
1481
1482 ARCH_EXT_LIST_PPC="
1483 altivec
1484 dcbzl
1485 ldbrx
1486 power8
1487 ppc4xx
1488 vsx
1489 "
1490
1491 ARCH_EXT_LIST_X86="
1492 $ARCH_EXT_LIST_X86_SIMD
1493 cpunop
1494 i686
1495 "
1496
1497 ARCH_EXT_LIST_MIPS="
1498 loongson
1499 mips32r1
1500 mips64r1
1501 mips32r2
1502 mips64r2
1503 mips32r6
1504 mips64r6
1505 "
1506
1507 ARCH_EXT_LIST="
1508 $ARCH_EXT_LIST_ARM
1509 $ARCH_EXT_LIST_MIPS
1510 $ARCH_EXT_LIST_PPC
1511 $ARCH_EXT_LIST_X86
1512 vis
1513 "
1514
1515 ARCH_FEATURES="
1516 aligned_stack
1517 fast_64bit
1518 fast_clz
1519 fast_cmov
1520 local_aligned_8
1521 local_aligned_16
1522 local_aligned_32
1523 simd_align_16
1524 simd_align_32
1525 "
1526
1527 BUILTIN_LIST="
1528 atomic_cas_ptr
1529 machine_rw_barrier
1530 MemoryBarrier
1531 mm_empty
1532 rdtsc
1533 sem_timedwait
1534 sync_val_compare_and_swap
1535 "
1536 HAVE_LIST_CMDLINE="
1537 inline_asm
1538 symver
1539 x86asm
1540 "
1541
1542 HAVE_LIST_PUB="
1543 bigendian
1544 fast_unaligned
1545 "
1546
1547 HEADERS_LIST="
1548 AVFoundation_AVFoundation_h
1549 alsa_asoundlib_h
1550 arpa_inet_h
1551 cdio_paranoia_h
1552 cdio_paranoia_paranoia_h
1553 d3d11_h
1554 dispatch_dispatch_h
1555 dev_bktr_ioctl_bt848_h
1556 dev_bktr_ioctl_meteor_h
1557 dev_ic_bt8xx_h
1558 dev_video_bktr_ioctl_bt848_h
1559 dev_video_meteor_ioctl_meteor_h
1560 direct_h
1561 dlfcn_h
1562 dxva_h
1563 gsm_h
1564 io_h
1565 mach_mach_time_h
1566 machine_ioctl_bt848_h
1567 machine_ioctl_meteor_h
1568 malloc_h
1569 poll_h
1570 sndio_h
1571 soundcard_h
1572 stdatomic_h
1573 sys_mman_h
1574 sys_param_h
1575 sys_resource_h
1576 sys_select_h
1577 sys_soundcard_h
1578 sys_time_h
1579 sys_un_h
1580 sys_videoio_h
1581 unistd_h
1582 valgrind_valgrind_h
1583 windows_h
1584 winsock2_h
1585 "
1586
1587 INTRINSICS_LIST="
1588 intrinsics_neon
1589 "
1590
1591 MATH_FUNCS="
1592 atanf
1593 atan2f
1594 cbrtf
1595 cosf
1596 exp2
1597 exp2f
1598 expf
1599 isinf
1600 isnan
1601 ldexpf
1602 llrint
1603 llrintf
1604 log2
1605 log2f
1606 log10f
1607 lrint
1608 lrintf
1609 powf
1610 rint
1611 round
1612 roundf
1613 sinf
1614 trunc
1615 truncf
1616 "
1617
1618 SYSTEM_FUNCS="
1619 aligned_malloc
1620 clock_gettime
1621 closesocket
1622 CommandLineToArgvW
1623 CoTaskMemFree
1624 CryptGenRandom
1625 fcntl
1626 flt_lim
1627 fork
1628 getaddrinfo
1629 gethrtime
1630 getopt
1631 GetProcessAffinityMask
1632 GetProcessMemoryInfo
1633 GetProcessTimes
1634 getrusage
1635 GetSystemTimeAsFileTime
1636 gettimeofday
1637 gmtime_r
1638 inet_aton
1639 isatty
1640 LoadLibrary
1641 localtime_r
1642 mach_absolute_time
1643 MapViewOfFile
1644 memalign
1645 mkstemp
1646 mmap
1647 mprotect
1648 nanosleep
1649 posix_memalign
1650 sched_getaffinity
1651 SetConsoleTextAttribute
1652 setmode
1653 setrlimit
1654 Sleep
1655 strerror_r
1656 sysconf
1657 sysctl
1658 usleep
1659 VirtualAlloc
1660 "
1661
1662 TOOLCHAIN_FEATURES="
1663 as_arch_directive
1664 as_fpu_directive
1665 as_func
1666 as_object_arch
1667 asm_mod_q
1668 attribute_may_alias
1669 attribute_packed
1670 blocks_extension
1671 ebp_available
1672 ebx_available
1673 gnu_as
1674 ibm_asm
1675 inline_asm_labels
1676 pragma_deprecated
1677 symver_asm_label
1678 symver_gnu_asm
1679 vfp_args
1680 xform_asm
1681 xmm_clobbers
1682 "
1683
1684 TYPES_LIST="
1685 CONDITION_VARIABLE_Ptr
1686 socklen_t
1687 struct_addrinfo
1688 struct_group_source_req
1689 struct_ip_mreq_source
1690 struct_ipv6_mreq
1691 struct_pollfd
1692 struct_rusage_ru_maxrss
1693 struct_sockaddr_in6
1694 struct_sockaddr_sa_len
1695 struct_sockaddr_storage
1696 struct_v4l2_frmivalenum_discrete
1697 "
1698
1699 HAVE_LIST="
1700 $ARCH_EXT_LIST
1701 $(add_suffix _external $ARCH_EXT_LIST)
1702 $(add_suffix _inline $ARCH_EXT_LIST)
1703 $ARCH_FEATURES
1704 $BUILTIN_LIST
1705 $HAVE_LIST_CMDLINE
1706 $HAVE_LIST_PUB
1707 $HEADERS_LIST
1708 $INTRINSICS_LIST
1709 $MATH_FUNCS
1710 $SYSTEM_FUNCS
1711 $THREADS_LIST
1712 $TOOLCHAIN_FEATURES
1713 $TYPES_LIST
1714 dos_paths
1715 libc_msvcrt
1716 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1717 sdl
1718 section_data_rel_ro
1719 threads
1720 vaapi_drm
1721 vaapi_x11
1722 vdpau_x11
1723 "
1724
1725 # options emitted with CONFIG_ prefix but not available on the command line
1726 CONFIG_EXTRA="
1727 aandcttables
1728 ac3dsp
1729 adts_header
1730 audio_frame_queue
1731 audiodsp
1732 blockdsp
1733 bswapdsp
1734 cabac
1735 dirac_parse
1736 dvprofile
1737 faandct
1738 faanidct
1739 fdctdsp
1740 flacdsp
1741 fmtconvert
1742 g722dsp
1743 gmp
1744 golomb
1745 gplv3
1746 h263dsp
1747 h264chroma
1748 h264dsp
1749 h264parse
1750 h264pred
1751 h264qpel
1752 hevc_ps
1753 hpeldsp
1754 huffman
1755 huffyuvdsp
1756 huffyuvencdsp
1757 idctdsp
1758 iirfilter
1759 imdct15
1760 intrax8
1761 iso_media
1762 ividsp
1763 jpegtables
1764 lgplv3
1765 libx262
1766 libxcb_shape
1767 lpc
1768 lzf
1769 me_cmp
1770 mpeg_er
1771 mpegaudio
1772 mpegaudiodsp
1773 mpegaudioheader
1774 mpegvideo
1775 mpegvideoenc
1776 mss34dsp
1777 pixblockdsp
1778 qpeldsp
1779 qsv
1780 qsvdec
1781 qsvenc
1782 rangecoder
1783 riffdec
1784 riffenc
1785 rtpdec
1786 rtpenc_chain
1787 rv34dsp
1788 sinewin
1789 snappy
1790 srtp
1791 startcode
1792 texturedsp
1793 texturedspenc
1794 tpeldsp
1795 vaapi_encode
1796 vc1dsp
1797 videodsp
1798 vp3dsp
1799 vp56dsp
1800 vp8dsp
1801 wma_freqs
1802 wmv2dsp
1803 "
1804
1805 CMDLINE_SELECT="
1806 $ARCH_EXT_LIST
1807 $CONFIG_LIST
1808 $HAVE_LIST_CMDLINE
1809 $THREADS_LIST
1810 asm
1811 cross_compile
1812 debug
1813 extra_warnings
1814 logging
1815 lto
1816 optimizations
1817 rpath
1818 "
1819
1820 PATHS_LIST="
1821 bindir
1822 datadir
1823 docdir
1824 incdir
1825 libdir
1826 mandir
1827 prefix
1828 shlibdir
1829 "
1830
1831 CMDLINE_SET="
1832 $PATHS_LIST
1833 ar
1834 arch
1835 as
1836 cc
1837 objcc
1838 cpu
1839 cross_prefix
1840 custom_allocator
1841 dep_cc
1842 env
1843 extra_version
1844 host_cc
1845 host_cflags
1846 host_extralibs
1847 host_ld
1848 host_ldflags
1849 host_os
1850 ignore_tests
1851 ld
1852 logfile
1853 malloc_prefix
1854 nm
1855 optflags
1856 pkg_config
1857 pkg_config_flags
1858 random_seed
1859 samples
1860 sysinclude
1861 sysroot
1862 target_exec
1863 target_os
1864 target_path
1865 target_samples
1866 toolchain
1867 x86asmexe
1868 "
1869
1870 CMDLINE_APPEND="
1871 extra_cflags
1872 extra_objcflags
1873 host_cppflags
1874 "
1875
1876 # code dependency declarations
1877
1878 # architecture extensions
1879
1880 armv5te_deps="arm"
1881 armv6_deps="arm"
1882 armv6t2_deps="arm"
1883 armv8_deps="aarch64"
1884 neon_deps_any="aarch64 arm"
1885 intrinsics_neon_deps="neon"
1886 vfp_deps_any="aarch64 arm"
1887 vfpv3_deps="vfp"
1888
1889 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1890
1891 altivec_deps="ppc"
1892 dcbzl_deps="ppc"
1893 ldbrx_deps="ppc"
1894 ppc4xx_deps="ppc"
1895 vsx_deps="altivec"
1896 power8_deps="vsx"
1897
1898 loongson_deps="mips"
1899 mips32r1_deps="mips32"
1900 mips32r2_deps="mips32"
1901 mips32r6_deps="mips32"
1902 mips64r1_deps="mips64"
1903 mips64r2_deps="mips64"
1904 mips64r6_deps="mips64"
1905
1906 vis_deps="sparc"
1907
1908 cpunop_deps="i686"
1909 x86_64_select="i686"
1910 x86_64_suggest="fast_cmov"
1911
1912 amd3dnow_deps="mmx"
1913 amd3dnowext_deps="amd3dnow"
1914 i686_deps="x86"
1915 mmx_deps="x86"
1916 mmxext_deps="mmx"
1917 sse_deps="mmxext"
1918 sse2_deps="sse"
1919 sse3_deps="sse2"
1920 ssse3_deps="sse3"
1921 sse4_deps="ssse3"
1922 sse42_deps="sse4"
1923 avx_deps="sse42"
1924 xop_deps="avx"
1925 fma3_deps="avx"
1926 fma4_deps="avx"
1927 avx2_deps="avx"
1928
1929 mmx_external_deps="x86asm"
1930 mmx_inline_deps="inline_asm x86"
1931 mmx_suggest="mmx_external mmx_inline"
1932
1933 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1934 eval dep=\$${ext}_deps
1935 eval ${ext}_external_deps='"${dep}_external"'
1936 eval ${ext}_inline_deps='"${dep}_inline"'
1937 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1938 done
1939
1940 aligned_stack_if_any="aarch64 ppc x86"
1941 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1942 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1943 fast_unaligned_if_any="aarch64 ppc x86"
1944 simd_align_16_if_any="altivec neon sse"
1945 simd_align_32_if_any="avx"
1946
1947 # system capabilities
1948 symver_if_any="symver_asm_label symver_gnu_asm"
1949 valgrind_backtrace_conflict="optimizations"
1950 valgrind_backtrace_deps="valgrind_valgrind_h"
1951
1952 # threading support
1953 atomics_gcc_if="sync_val_compare_and_swap"
1954 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1955 atomics_win32_if="MemoryBarrier"
1956 atomics_native_if_any="$ATOMICS_LIST"
1957 w32threads_deps="atomics_native"
1958 threads_if_any="$THREADS_LIST"
1959
1960 # subsystems
1961 dct_select="rdft"
1962 dirac_parse_select="golomb"
1963 error_resilience_select="me_cmp"
1964 faandct_deps="faan fdctdsp"
1965 faanidct_deps="faan idctdsp"
1966 h264dsp_select="startcode"
1967 hevc_ps_select="golomb"
1968 intrax8_select="blockdsp idctdsp"
1969 mdct_select="fft"
1970 rdft_select="fft"
1971 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1972 mpeg_er_select="error_resilience"
1973 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1974 mpegaudiodsp_select="dct"
1975 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1976 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1977 vc1dsp_select="h264chroma qpeldsp startcode"
1978
1979 # decoders / encoders
1980 aac_decoder_select="adts_header imdct15 mdct sinewin"
1981 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1982 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1983 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1984 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1985 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1986 adpcm_g722_decoder_select="g722dsp"
1987 adpcm_g722_encoder_select="g722dsp"
1988 aic_decoder_select="golomb idctdsp"
1989 alac_encoder_select="lpc"
1990 als_decoder_select="bswapdsp"
1991 amrnb_decoder_select="lsp"
1992 amrwb_decoder_select="lsp"
1993 amv_decoder_select="sp5x_decoder"
1994 ape_decoder_select="bswapdsp"
1995 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1996 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1997 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1998 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1999 atrac1_decoder_select="mdct sinewin"
2000 atrac3_decoder_select="mdct"
2001 atrac3p_decoder_select="mdct sinewin"
2002 bink_decoder_select="blockdsp hpeldsp"
2003 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2004 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2005 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2006 clearvideo_decoder_select="idctdsp"
2007 cllc_decoder_select="bswapdsp"
2008 comfortnoise_encoder_select="lpc"
2009 cook_decoder_select="audiodsp mdct sinewin"
2010 cscd_decoder_select="lzo"
2011 cscd_decoder_suggest="zlib"
2012 dca_decoder_select="fmtconvert mdct"
2013 dds_decoder_select="texturedsp"
2014 dnxhd_decoder_select="blockdsp idctdsp"
2015 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2016 dvvideo_decoder_select="dvprofile idctdsp"
2017 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2018 dxa_decoder_deps="zlib"
2019 dxv_decoder_select="lzf texturedsp"
2020 eac3_decoder_select="ac3_decoder"
2021 eac3_encoder_select="ac3_encoder"
2022 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2023 eatgq_decoder_select="aandcttables idctdsp"
2024 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2025 exr_decoder_deps="zlib"
2026 ffv1_decoder_select="rangecoder"
2027 ffv1_encoder_select="rangecoder"
2028 ffvhuff_decoder_select="huffyuv_decoder"
2029 ffvhuff_encoder_select="huffyuv_encoder"
2030 fic_decoder_select="golomb"
2031 flac_decoder_select="flacdsp"
2032 flac_encoder_select="bswapdsp flacdsp lpc"
2033 flashsv_decoder_deps="zlib"
2034 flashsv_encoder_deps="zlib"
2035 flashsv2_decoder_deps="zlib"
2036 flv_decoder_select="h263_decoder"
2037 flv_encoder_select="h263_encoder"
2038 fourxm_decoder_select="blockdsp bswapdsp"
2039 fraps_decoder_select="bswapdsp huffman"
2040 g2m_decoder_deps="zlib"
2041 g2m_decoder_select="blockdsp idctdsp jpegtables"
2042 h261_decoder_select="mpeg_er mpegvideo"
2043 h261_encoder_select="aandcttables mpegvideoenc"
2044 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2045 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2046 h263i_decoder_select="h263_decoder"
2047 h263p_encoder_select="h263_encoder"
2048 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2049 h264_decoder_suggest="error_resilience"
2050 hap_decoder_select="snappy texturedsp"
2051 hap_encoder_deps="libsnappy"
2052 hap_encoder_select="texturedspenc"
2053 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2054 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2055 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2056 iac_decoder_select="imc_decoder"
2057 imc_decoder_select="bswapdsp fft mdct sinewin"
2058 indeo3_decoder_select="hpeldsp"
2059 indeo4_decoder_select="ividsp"
2060 indeo5_decoder_select="ividsp"
2061 interplay_video_decoder_select="hpeldsp"
2062 jpegls_decoder_select="mjpeg_decoder"
2063 jv_decoder_select="blockdsp"
2064 lagarith_decoder_select="huffyuvdsp"
2065 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2066 magicyuv_decoder_select="huffyuvdsp"
2067 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2068 metasound_decoder_select="lsp mdct sinewin"
2069 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2070 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2071 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2072 mjpegb_decoder_select="mjpeg_decoder"
2073 mlp_decoder_select="mlp_parser"
2074 motionpixels_decoder_select="bswapdsp"
2075 mp1_decoder_select="mpegaudio"
2076 mp1float_decoder_select="mpegaudio"
2077 mp2_decoder_select="mpegaudio"
2078 mp2float_decoder_select="mpegaudio"
2079 mp3_decoder_select="mpegaudio"
2080 mp3adu_decoder_select="mpegaudio"
2081 mp3adufloat_decoder_select="mpegaudio"
2082 mp3float_decoder_select="mpegaudio"
2083 mp3on4_decoder_select="mpegaudio"
2084 mp3on4float_decoder_select="mpegaudio"
2085 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2086 mpc8_decoder_select="mpegaudiodsp"
2087 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2088 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2089 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2090 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2091 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2092 mpeg4_encoder_select="h263_encoder"
2093 msa1_decoder_select="mss34dsp"
2094 msmpeg4v1_decoder_select="h263_decoder"
2095 msmpeg4v2_decoder_select="h263_decoder"
2096 msmpeg4v2_encoder_select="h263_encoder"
2097 msmpeg4v3_decoder_select="h263_decoder"
2098 msmpeg4v3_encoder_select="h263_encoder"
2099 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2100 mts2_decoder_select="mss34dsp"
2101 mxpeg_decoder_select="mjpeg_decoder"
2102 nellymoser_decoder_select="mdct sinewin"
2103 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2104 nuv_decoder_select="idctdsp lzo"
2105 on2avc_decoder_select="mdct"
2106 opus_decoder_deps="avresample"
2107 opus_decoder_select="imdct15"
2108 png_decoder_deps="zlib"
2109 png_encoder_deps="zlib"
2110 png_encoder_select="huffyuvencdsp"
2111 prores_decoder_select="idctdsp"
2112 prores_encoder_select="fdctdsp"
2113 qcelp_decoder_select="lsp"
2114 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2115 ra_144_encoder_select="audio_frame_queue lpc"
2116 ralf_decoder_select="golomb"
2117 rscc_decoder_deps="zlib"
2118 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2119 rv10_encoder_select="h263_encoder"
2120 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2121 rv20_encoder_select="h263_encoder"
2122 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2123 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2124 screenpresso_decoder_deps="zlib"
2125 sipr_decoder_select="lsp"
2126 sp5x_decoder_select="mjpeg_decoder"
2127 svq1_decoder_select="hpeldsp"
2128 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2129 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2130 svq3_decoder_suggest="zlib"
2131 tak_decoder_select="audiodsp"
2132 tdsc_decoder_deps="zlib"
2133 tdsc_decoder_select="mjpeg_decoder"
2134 theora_decoder_select="vp3_decoder"
2135 thp_decoder_select="mjpeg_decoder"
2136 tiff_decoder_suggest="zlib"
2137 tiff_encoder_suggest="zlib"
2138 truehd_decoder_select="mlp_decoder"
2139 truemotion2_decoder_select="bswapdsp"
2140 truespeech_decoder_select="bswapdsp"
2141 tscc_decoder_deps="zlib"
2142 txd_decoder_select="texturedsp"
2143 twinvq_decoder_select="mdct lsp sinewin"
2144 utvideo_decoder_select="bswapdsp huffyuvdsp"
2145 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2146 vble_decoder_select="huffyuvdsp"
2147 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2148 vc1image_decoder_select="vc1_decoder"
2149 vorbis_decoder_select="mdct"
2150 vorbis_encoder_select="mdct"
2151 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2152 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2153 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2154 vp6a_decoder_select="vp6_decoder"
2155 vp6f_decoder_select="vp6_decoder"
2156 vp7_decoder_select="h264pred videodsp vp8dsp"
2157 vp8_decoder_select="h264pred videodsp vp8dsp"
2158 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2159 webp_decoder_select="vp8_decoder"
2160 wmapro_decoder_select="mdct sinewin wma_freqs"
2161 wmav1_decoder_select="mdct sinewin wma_freqs"
2162 wmav1_encoder_select="mdct sinewin wma_freqs"
2163 wmav2_decoder_select="mdct sinewin wma_freqs"
2164 wmav2_encoder_select="mdct sinewin wma_freqs"
2165 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2166 wmv1_decoder_select="h263_decoder"
2167 wmv1_encoder_select="h263_encoder"
2168 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2169 wmv2_encoder_select="h263_encoder wmv2dsp"
2170 wmv3_decoder_select="vc1_decoder"
2171 wmv3image_decoder_select="wmv3_decoder"
2172 zerocodec_decoder_deps="zlib"
2173 zlib_decoder_deps="zlib"
2174 zlib_encoder_deps="zlib"
2175 zmbv_decoder_deps="zlib"
2176 zmbv_encoder_deps="zlib"
2177
2178 # hardware accelerators
2179 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2180 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2181 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2182 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2183
2184 h263_vaapi_hwaccel_deps="vaapi"
2185 h263_vaapi_hwaccel_select="h263_decoder"
2186 h264_d3d11va_hwaccel_deps="d3d11va"
2187 h264_d3d11va_hwaccel_select="h264_decoder"
2188 h264_d3d11va2_hwaccel_deps="d3d11va"
2189 h264_d3d11va2_hwaccel_select="h264_decoder"
2190 h264_dxva2_hwaccel_deps="dxva2"
2191 h264_dxva2_hwaccel_select="h264_decoder"
2192 h264_mmal_hwaccel_deps="mmal"
2193 h264_qsv_hwaccel_deps="libmfx"
2194 h264_vaapi_hwaccel_deps="vaapi"
2195 h264_vaapi_hwaccel_select="h264_decoder"
2196 h264_vda_hwaccel_deps="vda"
2197 h264_vda_hwaccel_select="h264_decoder"
2198 h264_vda_old_hwaccel_deps="vda"
2199 h264_vda_old_hwaccel_select="h264_decoder"
2200 h264_vdpau_hwaccel_deps="vdpau"
2201 h264_vdpau_hwaccel_select="h264_decoder"
2202 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2203 hevc_d3d11va_hwaccel_select="hevc_decoder"
2204 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2205 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2206 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2207 hevc_dxva2_hwaccel_select="hevc_decoder"
2208 hevc_qsv_hwaccel_deps="libmfx"
2209 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2210 hevc_vaapi_hwaccel_select="hevc_decoder"
2211 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2212 hevc_vdpau_hwaccel_select="hevc_decoder"
2213 mpeg1_vdpau_hwaccel_deps="vdpau"
2214 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2215 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2216 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2217 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2218 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2219 mpeg2_dxva2_hwaccel_deps="dxva2"
2220 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2221 mpeg2_mmal_hwaccel_deps="mmal"
2222 mpeg2_qsv_hwaccel_deps="libmfx"
2223 mpeg2_vaapi_hwaccel_deps="vaapi"
2224 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2225 mpeg2_vdpau_hwaccel_deps="vdpau"
2226 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2227 mpeg4_vaapi_hwaccel_deps="vaapi"
2228 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2229 mpeg4_vdpau_hwaccel_deps="vdpau"
2230 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2231 vc1_d3d11va_hwaccel_deps="d3d11va"
2232 vc1_d3d11va_hwaccel_select="vc1_decoder"
2233 vc1_d3d11va2_hwaccel_deps="d3d11va"
2234 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2235 vc1_dxva2_hwaccel_deps="dxva2"
2236 vc1_dxva2_hwaccel_select="vc1_decoder"
2237 vc1_mmal_hwaccel_deps="mmal"
2238 vc1_qsv_hwaccel_deps="libmfx"
2239 vc1_vaapi_hwaccel_deps="vaapi"
2240 vc1_vaapi_hwaccel_select="vc1_decoder"
2241 vc1_vdpau_hwaccel_deps="vdpau"
2242 vc1_vdpau_hwaccel_select="vc1_decoder"
2243 vp8_qsv_hwaccel_deps="libmfx"
2244 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2245 vp8_vaapi_hwaccel_select="vp8_decoder"
2246 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2247 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2248 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2249 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2250 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2251
2252 # hardware-accelerated codecs
2253 nvenc_deps_any="libdl LoadLibrary"
2254 omx_deps="libdl pthreads"
2255 omx_rpi_select="omx"
2256 qsv_deps="libmfx"
2257 qsvdec_select="qsv"
2258 qsvenc_select="qsv"
2259 vaapi_encode_deps="vaapi"
2260
2261 hwupload_cuda_filter_deps="cuda"
2262 scale_npp_filter_deps="cuda libnpp"
2263
2264 h264_mmal_decoder_deps="mmal"
2265 h264_nvenc_encoder_deps="nvenc"
2266 h264_omx_encoder_deps="omx"
2267 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2268 h264_qsv_encoder_select="qsvenc"
2269 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2270 h264_vaapi_encoder_select="vaapi_encode golomb"
2271 hevc_nvenc_encoder_deps="nvenc"
2272 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2273 hevc_qsv_encoder_select="hevc_ps qsvenc"
2274 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2275 hevc_vaapi_encoder_select="vaapi_encode golomb"
2276 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2277 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2278 mpeg2_mmal_decoder_deps="mmal"
2279 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2280 mpeg2_qsv_encoder_select="qsvenc"
2281 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2282 mpeg2_vaapi_encoder_select="vaapi_encode"
2283 mpeg4_omx_encoder_deps="omx"
2284 vc1_mmal_decoder_deps="mmal"
2285 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2286 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2287 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2288 vp8_vaapi_encoder_select="vaapi_encode"
2289 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2290 vp9_vaapi_encoder_select="vaapi_encode"
2291
2292 nvenc_h264_encoder_select="h264_nvenc_encoder"
2293 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2294
2295 # parsers
2296 aac_parser_select="adts_header"
2297 h264_parser_select="golomb h264dsp h264parse"
2298 hevc_parser_select="hevc_ps"
2299 mpegaudio_parser_select="mpegaudioheader"
2300 mpegvideo_parser_select="mpegvideo"
2301 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2302 vc1_parser_select="vc1dsp"
2303
2304 # bitstream_filters
2305 aac_adtstoasc_bsf_select="adts_header"
2306 mjpeg2jpeg_bsf_select="jpegtables"
2307
2308 # external libraries
2309 avisynth_deps="LoadLibrary"
2310 avxsynth_deps="libdl"
2311 avisynth_demuxer_deps_any="avisynth avxsynth"
2312 avisynth_demuxer_select="riffdec"
2313 libdcadec_decoder_deps="libdcadec"
2314 libfaac_encoder_deps="libfaac"
2315 libfaac_encoder_select="audio_frame_queue"
2316 libfdk_aac_decoder_deps="libfdk_aac"
2317 libfdk_aac_encoder_deps="libfdk_aac"
2318 libfdk_aac_encoder_select="audio_frame_queue"
2319 libgsm_decoder_deps="libgsm"
2320 libgsm_encoder_deps="libgsm"
2321 libgsm_ms_decoder_deps="libgsm"
2322 libgsm_ms_encoder_deps="libgsm"
2323 libilbc_decoder_deps="libilbc"
2324 libilbc_encoder_deps="libilbc"
2325 libkvazaar_encoder_deps="libkvazaar"
2326 libmp3lame_encoder_deps="libmp3lame"
2327 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2328 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2329 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2330 libopencore_amrnb_encoder_select="audio_frame_queue"
2331 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2332 libopenh264_decoder_deps="libopenh264"
2333 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2334 libopenh264_encoder_deps="libopenh264"
2335 libopenjpeg_decoder_deps="libopenjpeg"
2336 libopenjpeg_encoder_deps="libopenjpeg"
2337 libopus_decoder_deps="libopus"
2338 libopus_encoder_deps="libopus"
2339 libopus_encoder_select="audio_frame_queue"
2340 libschroedinger_decoder_deps="libschroedinger"
2341 libschroedinger_encoder_deps="libschroedinger"
2342 libspeex_decoder_deps="libspeex"
2343 libspeex_encoder_deps="libspeex"
2344 libspeex_encoder_select="audio_frame_queue"
2345 libtheora_encoder_deps="libtheora"
2346 libtwolame_encoder_deps="libtwolame"
2347 libvo_aacenc_encoder_deps="libvo_aacenc"
2348 libvo_aacenc_encoder_select="audio_frame_queue"
2349 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2350 libvorbis_encoder_deps="libvorbis"
2351 libvorbis_encoder_select="audio_frame_queue"
2352 libvpx_vp8_decoder_deps="libvpx"
2353 libvpx_vp8_encoder_deps="libvpx"
2354 libvpx_vp9_decoder_deps="libvpx"
2355 libvpx_vp9_encoder_deps="libvpx"
2356 libwavpack_encoder_deps="libwavpack"
2357 libwavpack_encoder_select="audio_frame_queue"
2358 libwebp_encoder_deps="libwebp"
2359 libx262_encoder_deps="libx262"
2360 libx264_encoder_deps="libx264"
2361 libx265_encoder_deps="libx265"
2362 libxavs_encoder_deps="libxavs"
2363 libxvid_encoder_deps="libxvid mkstemp"
2364
2365 # demuxers / muxers
2366 ac3_demuxer_select="ac3_parser"
2367 asf_demuxer_select="riffdec"
2368 asf_muxer_select="riffenc"
2369 asf_stream_muxer_select="asf_muxer"
2370 avi_demuxer_select="iso_media riffdec"
2371 avi_muxer_select="riffenc"
2372 caf_demuxer_select="iso_media riffdec"
2373 dash_muxer_select="mp4_muxer"
2374 dirac_demuxer_select="dirac_parser"
2375 dv_demuxer_select="dvprofile"
2376 dv_muxer_select="dvprofile"
2377 dxa_demuxer_select="riffdec"
2378 eac3_demuxer_select="ac3_parser"
2379 f4v_muxer_select="mov_muxer"
2380 flac_demuxer_select="flac_parser"
2381 hds_muxer_select="flv_muxer"
2382 hls_muxer_select="mpegts_muxer"
2383 ipod_muxer_select="mov_muxer"
2384 ismv_muxer_select="mov_muxer"
2385 matroska_audio_muxer_select="matroska_muxer"
2386 matroska_demuxer_select="iso_media riffdec"
2387 matroska_demuxer_suggest="bzlib lzo zlib"
2388 matroska_muxer_select="iso_media riffenc"
2389 mmf_muxer_select="riffenc"
2390 mov_demuxer_select="iso_media riffdec"
2391 mov_demuxer_suggest="zlib"
2392 mov_muxer_select="iso_media riffenc rtpenc_chain"
2393 mp3_demuxer_select="mpegaudio_parser"
2394 mp3_muxer_select="mpegaudioheader"
2395 mp4_muxer_select="mov_muxer"
2396 mpegts_demuxer_select="iso_media"
2397 mpegts_muxer_select="adts_muxer latm_muxer"
2398 mpegtsraw_demuxer_select="mpegts_demuxer"
2399 mxf_d10_muxer_select="mxf_muxer"
2400 nut_muxer_select="riffenc"
2401 nuv_demuxer_select="riffdec"
2402 oga_muxer_select="ogg_muxer"
2403 ogg_demuxer_select="dirac_parse"
2404 opus_muxer_select="ogg_muxer"
2405 psp_muxer_select="mov_muxer"
2406 rtp_demuxer_select="sdp_demuxer"
2407 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2408 rtsp_demuxer_select="http_protocol rtpdec"
2409 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2410 sap_demuxer_select="sdp_demuxer"
2411 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2412 sdp_demuxer_select="rtpdec"
2413 smoothstreaming_muxer_select="ismv_muxer"
2414 spdif_demuxer_select="adts_header"
2415 spdif_muxer_select="adts_header"
2416 spx_muxer_select="ogg_muxer"
2417 swf_demuxer_suggest="zlib"
2418 tak_demuxer_select="tak_parser"
2419 tg2_muxer_select="mov_muxer"
2420 tgp_muxer_select="mov_muxer"
2421 w64_demuxer_select="wav_demuxer"
2422 wav_demuxer_select="riffdec"
2423 wav_muxer_select="riffenc"
2424 webm_muxer_select="iso_media riffenc"
2425 wtv_demuxer_select="mpegts_demuxer riffdec"
2426 xmv_demuxer_select="riffdec"
2427 xwma_demuxer_select="riffdec"
2428
2429 # indevs / outdevs
2430 alsa_indev_deps="alsa"
2431 alsa_outdev_deps="alsa"
2432 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2433 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2434 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2435 dv1394_indev_deps="dv1394"
2436 dv1394_indev_select="dv_demuxer"
2437 fbdev_indev_deps="linux_fb_h"
2438 jack_indev_deps="libjack"
2439 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2440 libcdio_indev_deps="libcdio"
2441 libdc1394_indev_deps="libdc1394"
2442 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2443 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2444 pulse_indev_deps="libpulse"
2445 sndio_indev_deps="sndio"
2446 sndio_outdev_deps="sndio"
2447 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2448 vfwcap_indev_deps="vfw32 vfwcap_defines"
2449 xcbgrab_indev_deps="libxcb libxcb_shape"
2450 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2451
2452 # protocols
2453 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2454 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2455 ffrtmpcrypt_protocol_select="tcp_protocol"
2456 ffrtmphttp_protocol_conflict="librtmp_protocol"
2457 ffrtmphttp_protocol_select="http_protocol"
2458 gopher_protocol_select="network"
2459 http_protocol_select="tcp_protocol"
2460 http_protocol_suggest="zlib"
2461 httpproxy_protocol_select="tcp_protocol"
2462 httpproxy_protocol_suggest="zlib"
2463 https_protocol_select="tls_protocol"
2464 https_protocol_suggest="zlib"
2465 icecast_protocol_select="http_protocol"
2466 librtmp_protocol_deps="librtmp"
2467 librtmpe_protocol_deps="librtmp"
2468 librtmps_protocol_deps="librtmp"
2469 librtmpt_protocol_deps="librtmp"
2470 librtmpte_protocol_deps="librtmp"
2471 mmsh_protocol_select="http_protocol"
2472 mmst_protocol_select="network"
2473 rtmp_protocol_conflict="librtmp_protocol"
2474 rtmp_protocol_select="tcp_protocol"
2475 rtmp_protocol_suggest="zlib"
2476 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2477 rtmpe_protocol_suggest="zlib"
2478 rtmps_protocol_conflict="librtmp_protocol"
2479 rtmps_protocol_select="tls_protocol"
2480 rtmps_protocol_suggest="zlib"
2481 rtmpt_protocol_select="ffrtmphttp_protocol"
2482 rtmpt_protocol_suggest="zlib"
2483 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2484 rtmpte_protocol_suggest="zlib"
2485 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2486 rtmpts_protocol_suggest="zlib"
2487 rtp_protocol_select="udp_protocol"
2488 sctp_protocol_deps="struct_sctp_event_subscribe"
2489 sctp_protocol_select="network"
2490 srtp_protocol_select="rtp_protocol srtp"
2491 tcp_protocol_select="network"
2492 tls_protocol_deps_any="gnutls openssl"
2493 tls_protocol_select="tcp_protocol"
2494 udp_protocol_select="network"
2495 unix_protocol_deps="sys_un_h"
2496 unix_protocol_select="network"
2497
2498 # filters
2499 asyncts_filter_deps="avresample"
2500 blackframe_filter_deps="gpl"
2501 boxblur_filter_deps="gpl"
2502 bs2b_filter_deps="libbs2b"
2503 cropdetect_filter_deps="gpl"
2504 deinterlace_qsv_filter_deps="libmfx"
2505 deinterlace_vaapi_filter_deps="vaapi"
2506 delogo_filter_deps="gpl"
2507 drawtext_filter_deps="libfreetype"
2508 drawtext_filter_suggest="libfontconfig"
2509 frei0r_filter_deps="frei0r libdl"
2510 frei0r_src_filter_deps="frei0r libdl"
2511 hdcd_filter_deps="libhdcd"
2512 hqdn3d_filter_deps="gpl"
2513 interlace_filter_deps="gpl"
2514 movie_filter_deps="avcodec avformat"
2515 ocv_filter_deps="libopencv"
2516 resample_filter_deps="avresample"
2517 scale_filter_deps="swscale"
2518 scale_qsv_filter_deps="libmfx"
2519 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2520
2521 # examples
2522 decode_audio_example_deps="avcodec avutil"
2523 decode_video_example_deps="avcodec avutil"
2524 encode_audio_example_deps="avcodec avutil"
2525 encode_video_example_deps="avcodec avutil"
2526 filter_audio_example_deps="avfilter avutil"
2527 metadata_example_deps="avformat avutil"
2528 output_example_deps="avcodec avformat avresample avutil swscale"
2529 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2530 transcode_aac_example_deps="avcodec avformat avresample"
2531
2532 # EXTRALIBS_LIST
2533 cpu_init_extralibs="pthreads_extralibs"
2534 cws2fws_extralibs="zlib_extralibs"
2535
2536 # libraries, in linking order
2537 avcodec_deps="avutil"
2538 avcodec_select="null_bsf"
2539 avdevice_deps="avformat avcodec avutil"
2540 avfilter_deps="avutil"
2541 avformat_deps="avcodec avutil"
2542 avformat_suggest="network"
2543 avresample_deps="avutil"
2544 swscale_deps="avutil"
2545
2546 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2547 avdevice_extralibs="libm_extralibs"
2548 avformat_extralibs="libm_extralibs"
2549 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2550 avresample_extralibs="libm_extralibs"
2551 avutil_extralibs="clock_gettime_extralibs cuda_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2552 swscale_extralibs="libm_extralibs"
2553
2554 # programs
2555 avconv_deps="avcodec avfilter avformat avresample swscale"
2556 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2557 fps_filter null_filter resample_filter scale_filter
2558 trim_filter"
2559 avconv_suggest="psapi shell32"
2560 avplay_deps="avcodec avfilter avformat avresample sdl"
2561 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2562 avplay_suggest="shell32"
2563 avprobe_deps="avcodec avformat"
2564 avprobe_suggest="shell32"
2565
2566 # documentation
2567 pod2man_deps="doc"
2568 texi2html_deps="doc"
2569
2570 # default parameters
2571
2572 logfile="avbuild/config.log"
2573
2574 # installation paths
2575 prefix_default="/usr/local"
2576 bindir_default='${prefix}/bin'
2577 datadir_default='${prefix}/share/avconv'
2578 docdir_default='${prefix}/share/doc/libav'
2579 incdir_default='${prefix}/include'
2580 libdir_default='${prefix}/lib'
2581 mandir_default='${prefix}/share/man'
2582 shlibdir_default="$libdir_default"
2583
2584 # toolchain
2585 ar_default="ar"
2586 cc_default="gcc"
2587 host_cc_default="gcc"
2588 x86asmexe_default="nasm"
2589 ln_s="ln -s -f"
2590 nm_default="nm -g"
2591 pkg_config_default=pkg-config
2592 ranlib="ranlib"
2593 strip="strip"
2594 version_script='--version-script'
2595
2596 # machine
2597 arch_default=$(uname -m)
2598 cpu="generic"
2599 intrinsics="none"
2600
2601 # OS
2602 target_os_default=$(tolower $(uname -s))
2603 host_os=$target_os_default
2604
2605 # configurable options
2606 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2607
2608 enable asm
2609 enable debug
2610 enable doc
2611 enable faan faandct faanidct
2612 enable optimizations
2613 enable safe_bitstream_reader
2614 enable static
2615 enable swscale_alpha
2616 enable valgrind_backtrace
2617
2618 # By default, enable only those hwaccels that have no external dependencies.
2619 enable d3d11va dxva2 vda vdpau
2620
2621 # internal components are enabled by default
2622 enable $EXTRALIBS_LIST
2623
2624 # Avoid external, non-system, libraries getting enabled by dependency resolution
2625 disable $EXTERNAL_LIBRARY_LIST
2626
2627 # build settings
2628 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2629 LIBPREF="lib"
2630 LIBSUF=".a"
2631 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2632 SLIBPREF="lib"
2633 SLIBSUF=".so"
2634 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2635 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2636 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2637 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2638 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2639 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2640 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2641
2642 asflags_filter=echo
2643 cflags_filter=echo
2644 ldflags_filter=echo
2645
2646 AS_C='-c'
2647 AS_O='-o $@'
2648 CC_C='-c'
2649 CC_E='-E -o $@'
2650 CC_O='-o $@'
2651 OBJCC_C='-c'
2652 OBJCC_E='-E -o $@'
2653 OBJCC_O='-o $@'
2654 X86ASM_O='-o $@'
2655 LD_O='-o $@'
2656 LD_LIB='-l%'
2657 LD_PATH='-L'
2658 HOSTCC_C='-c'
2659 HOSTCC_E='-E -o $@'
2660 HOSTCC_O='-o $@'
2661 HOSTLD_O='-o $@'
2662
2663 host_extralibs='-lm'
2664 host_cflags_filter=echo
2665 host_ldflags_filter=echo
2666
2667 target_path='$(CURDIR)'
2668
2669 # since the object filename is not given with the -MM flag, the compiler
2670 # is only able to print the basename, and we must add the path ourselves
2671 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2672 DEPFLAGS='-MM'
2673
2674 mkdir -p avbuild
2675
2676 # find source path
2677 if test -f configure; then
2678 source_path=.
2679 else
2680 source_path=$(cd $(dirname "$0"); pwd)
2681 echo "$source_path" | grep -q '[[:blank:]]' &&
2682 die "Out of tree builds are impossible with whitespace in source path."
2683 test -e "$source_path/config.h" &&
2684 die "Out of tree builds are impossible with config.h in source dir."
2685 fi
2686
2687 for v in "$@"; do
2688 r=${v#*=}
2689 l=${v%"$r"}
2690 r=$(sh_quote "$r")
2691 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2692 done
2693
2694 find_things(){
2695 thing=$1
2696 pattern=$2
2697 file=$source_path/$3
2698 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2699 }
2700
2701 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2702 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2703 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2704 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2705 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2706 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2707 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2708 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2709 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2710
2711 find_things_extern(){
2712 thing=$1
2713 pattern=$2
2714 file=$source_path/$3
2715 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2716 }
2717
2718 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2719 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2720
2721 AVCODEC_COMPONENTS_LIST="
2722 $BSF_LIST
2723 $DECODER_LIST
2724 $ENCODER_LIST
2725 $HWACCEL_LIST
2726 $PARSER_LIST
2727 "
2728
2729 AVDEVICE_COMPONENTS_LIST="
2730 $INDEV_LIST
2731 $OUTDEV_LIST
2732 "
2733
2734 AVFILTER_COMPONENTS_LIST="
2735 $FILTER_LIST
2736 "
2737
2738 AVFORMAT_COMPONENTS_LIST="
2739 $DEMUXER_LIST
2740 $MUXER_LIST
2741 $PROTOCOL_LIST
2742 "
2743
2744 ALL_COMPONENTS="
2745 $AVCODEC_COMPONENTS_LIST
2746 $AVDEVICE_COMPONENTS_LIST
2747 $AVFILTER_COMPONENTS_LIST
2748 $AVFORMAT_COMPONENTS_LIST
2749 "
2750
2751 for n in $COMPONENT_LIST; do
2752 v=$(toupper ${n%s})_LIST
2753 eval enable \$$v
2754 eval ${n}_if_any="\$$v"
2755 done
2756
2757 enable $ARCH_EXT_LIST
2758
2759 die_unknown(){
2760 echo "Unknown option \"$1\"."
2761 echo "See $0 --help for available options."
2762 exit 1
2763 }
2764
2765 print_3_columns() {
2766 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2767 }
2768
2769 show_list() {
2770 suffix=_$1
2771 shift
2772 echo $* | sed s/$suffix//g | print_3_columns
2773 exit 0
2774 }
2775
2776 rand_list(){
2777 IFS=', '
2778 set -- $*
2779 unset IFS
2780 for thing; do
2781 comp=${thing%:*}
2782 prob=${thing#$comp}
2783 prob=${prob#:}
2784 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2785 echo "prob ${prob:-0.5}"
2786 printf '%s\n' $comp
2787 done
2788 }
2789
2790 do_random(){
2791 action=$1
2792 shift
2793 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2794 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2795 }
2796
2797 for opt do
2798 optval="${opt#*=}"
2799 case "$opt" in
2800 --extra-ldflags=*)
2801 add_ldflags $optval
2802 ;;
2803 --extra-ldexeflags=*)
2804 add_ldexeflags $optval
2805 ;;
2806 --extra-libs=*)
2807 add_extralibs $optval
2808 ;;
2809 --disable-devices)
2810 disable $INDEV_LIST $OUTDEV_LIST
2811 ;;
2812 --enable-debug=*)
2813 debuglevel="$optval"
2814 ;;
2815 --disable-programs)
2816 disable $PROGRAM_LIST
2817 ;;
2818 --disable-everything)
2819 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2820 ;;
2821 --disable-all)
2822 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2823 disable $LIBRARY_LIST $PROGRAM_LIST doc
2824 ;;
2825 --enable-random|--disable-random)
2826 action=${opt%%-random}
2827 do_random ${action#--} $COMPONENT_LIST
2828 ;;
2829 --enable-random=*|--disable-random=*)
2830 action=${opt%%-random=*}
2831 do_random ${action#--} $optval
2832 ;;
2833 --enable-*=*|--disable-*=*)
2834 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2835 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2836 eval list=\$$(toupper $thing)_LIST
2837 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2838 $action $(filter "$name" $list)
2839 ;;
2840 --enable-avserver|--disable-avserver*)
2841 warn "avserver has been removed, the ${opt} option is only"\
2842 "provided for compatibility and will be removed in the future"
2843 ;;
2844 --enable-yasm|--disable-yasm)
2845 warn "The ${opt} option is only provided for compatibility and will be\n"\
2846 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2847 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2848 ;;
2849 --enable-?*|--disable-?*)
2850 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2851 if is_in $option $COMPONENT_LIST; then
2852 test $action = disable && action=unset
2853 eval $action \$$(toupper ${option%s})_LIST
2854 elif is_in $option $CMDLINE_SELECT; then
2855 $action $option
2856 else
2857 die_unknown $opt
2858 fi
2859 ;;
2860 --list-*)
2861 NAME="${opt#--list-}"
2862 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2863 NAME=${NAME%s}
2864 eval show_list $NAME \$$(toupper $NAME)_LIST
2865 ;;
2866 --help|-h) show_help
2867 ;;
2868 --quiet|-q) quiet=yes
2869 ;;
2870 *)
2871 optname="${opt%%=*}"
2872 optname="${optname#--}"
2873 optname=$(echo "$optname" | sed 's/-/_/g')
2874 if is_in $optname $CMDLINE_SET; then
2875 eval $optname='$optval'
2876 elif is_in $optname $CMDLINE_APPEND; then
2877 append $optname "$optval"
2878 else
2879 die_unknown $opt
2880 fi
2881 ;;
2882 esac
2883 done
2884
2885 for e in $env; do
2886 eval "export $e"
2887 done
2888
2889 disabled logging && logfile=/dev/null
2890
2891 # Die early if licensing-related configure options are incompatible.
2892 die_license_disabled() {
2893 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2894 }
2895
2896 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2897 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2898 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2899
2900 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2901
2902 enabled_all gnutls openssl &&
2903 die "GnuTLS and OpenSSL must not be enabled at the same time."
2904
2905 # Disable all the library-specific components if the library itself
2906 # is disabled, see AVCODEC_LIST and following _LIST variables.
2907
2908 disable_components(){
2909 disabled ${1} && disable $(
2910 eval components="\$$(toupper ${1})_COMPONENTS"
2911 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2912 )
2913 }
2914
2915 map 'disable_components $v' $LIBRARY_LIST
2916
2917 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2918 set >> $logfile
2919
2920 case "$toolchain" in
2921 *-asan)
2922 cc_default="${toolchain%-asan}"
2923 add_cflags -fsanitize=address
2924 add_ldflags -fsanitize=address
2925 ;;
2926 *-msan)
2927 cc_default="${toolchain%-msan}"
2928 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2929 add_ldflags -fsanitize=memory
2930 ;;
2931 *-tsan)
2932 cc_default="${toolchain%-tsan}"
2933 add_cflags -fsanitize=thread -fPIE
2934 add_ldflags -fsanitize=thread -pie
2935 case "$toolchain" in
2936 gcc-tsan)
2937 add_cflags -fPIC
2938 add_ldflags -fPIC
2939 ;;
2940 esac
2941 ;;
2942 *-usan)
2943 cc_default="${toolchain%-usan}"
2944 add_cflags -fsanitize=undefined
2945 add_ldflags -fsanitize=undefined
2946 case "$toolchain" in
2947 clang-usan)
2948 add_cflags -O1
2949 ;;
2950 esac
2951 ;;
2952 valgrind-*)
2953 target_exec_default="valgrind"
2954 case "$toolchain" in
2955 valgrind-massif)
2956 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2957 ;;
2958 valgrind-memcheck)
2959 target_exec_args="--track-origins=yes --leak-check=full"
2960 ;;
2961 esac
2962 ;;
2963 msvc)
2964 # Check whether the current MSVC version needs the C99 converter.
2965 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2966 # support enough of C99 to build libav. Default to the new
2967 # behaviour if the regexp was unable to match anything, since this
2968 # successfully parses the version number of existing supported
2969 # versions that require the converter (MSVC 2010 and 2012).
2970 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2971 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2972 cc_default="cl"
2973 else
2974 cc_default="c99wrap cl"
2975 fi
2976 ld_default="$source_path/compat/windows/mslink"
2977 nm_default="dumpbin -symbols"
2978 ar_default="lib"
2979 case "$arch" in
2980 arm*)
2981 as_default="armasm"
2982 ;;
2983 esac
2984 target_os_default="win32"
2985 # Use a relative path for TMPDIR. This makes sure all the
2986 # ffconf temp files are written with a relative path, avoiding
2987 # issues with msys/win32 path conversion for MSVC parameters
2988 # such as -Fo<file> or -out:<file>.
2989 TMPDIR=.
2990 ;;
2991 icl)
2992 cc_default="icl"
2993 ld_default="xilink"
2994 nm_default="dumpbin -symbols"
2995 ar_default="xilib"
2996 target_os_default="win32"
2997 TMPDIR=.
2998 ;;
2999 gcov)
3000 add_cflags -fprofile-arcs -ftest-coverage
3001 add_ldflags -fprofile-arcs -ftest-coverage
3002 ;;
3003 llvm-cov)
3004 add_cflags -fprofile-arcs -ftest-coverage
3005 add_ldflags --coverage
3006 ;;
3007 hardened)
3008 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3009 add_cflags -fno-strict-overflow -fstack-protector-all
3010 add_ldflags -Wl,-z,relro -Wl,-z,now
3011 ;;
3012 ?*)
3013 die "Unknown toolchain $toolchain"
3014 ;;
3015 esac
3016
3017 test -n "$cross_prefix" && enable cross_compile
3018
3019 if enabled cross_compile; then
3020 test -n "$arch" && test -n "$target_os" ||
3021 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3022 fi
3023
3024 ar_default="${cross_prefix}${ar_default}"
3025 cc_default="${cross_prefix}${cc_default}"
3026 objcc_default="${cross_prefix}${objcc_default}"
3027 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3028 nm_default="${cross_prefix}${nm_default}"
3029 pkg_config_default="${cross_prefix}${pkg_config_default}"
3030 ranlib="${cross_prefix}${ranlib}"
3031 strip="${cross_prefix}${strip}"
3032
3033 sysinclude_default="${sysroot}/usr/include"
3034
3035 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3036 enabled cross_compile || host_cc_default=$cc
3037 set_default host_cc
3038
3039 if ! $pkg_config --version >/dev/null 2>&1; then
3040 warn "$pkg_config not found, library detection may fail."
3041 pkg_config=false
3042 fi
3043
3044 exesuf() {
3045 case $1 in
3046 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3047 esac
3048 }
3049
3050 EXESUF=$(exesuf $target_os)
3051 HOSTEXESUF=$(exesuf $host_os)
3052
3053 # set temporary file name
3054 : ${TMPDIR:=$TEMPDIR}
3055 : ${TMPDIR:=$TMP}
3056 : ${TMPDIR:=/tmp}
3057
3058 if ! check_cmd mktemp -u XXXXXX; then
3059 # simple replacement for missing mktemp
3060 # NOT SAFE FOR GENERAL USE
3061 mktemp(){
3062 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3063 echo "$tmpname"
3064 mkdir "$tmpname"
3065 }
3066 fi
3067
3068 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3069 die "Unable to create temporary directory in $TMPDIR."
3070
3071 tmpfile(){
3072 tmp="${AVTMPDIR}/test"$2
3073 (set -C; exec > $tmp) 2> /dev/null ||
3074 die "Unable to create temporary file in $AVTMPDIR."
3075 eval $1=$tmp
3076 }
3077
3078 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3079 trap 'exit 2' INT
3080
3081 tmpfile TMPASM .asm
3082 tmpfile TMPC .c
3083 tmpfile TMPE $EXESUF
3084 tmpfile TMPH .h
3085 tmpfile TMPO .o
3086 tmpfile TMPS .S
3087 tmpfile TMPSH .sh
3088 tmpfile TMPV .ver
3089
3090 unset -f mktemp
3091
3092 chmod +x $TMPE
3093
3094 # make sure we can execute files in $TMPDIR
3095 cat > $TMPSH 2>> $logfile <<EOF
3096 #! /bin/sh
3097 EOF
3098 chmod +x $TMPSH >> $logfile 2>&1
3099 if ! $TMPSH >> $logfile 2>&1; then
3100 cat <<EOF
3101 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3102 variable to another directory and make sure that it is not mounted noexec.
3103 EOF
3104 die "Sanity test failed."
3105 fi
3106
3107 armasm_flags(){
3108 for flag; do
3109 case $flag in
3110 # Filter out MSVC cl.exe options from cflags that shouldn't
3111 # be passed to gas-preprocessor
3112 -M[TD]*) ;;
3113 *) echo $flag ;;
3114 esac
3115 done
3116 }
3117
3118 ccc_flags(){
3119 for flag; do
3120 case $flag in
3121 -std=c99) echo -c99 ;;
3122 -mcpu=*) echo -arch ${flag#*=} ;;
3123 -mieee) echo -ieee ;;
3124 -O*|-fast) echo $flag ;;
3125 -fno-math-errno) echo -assume nomath_errno ;;
3126 -g) echo -g3 ;;
3127 -Wall) echo -msg_enable level2 ;;
3128 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3129 -Wl,*) echo $flag ;;
3130 -f*|-W*) ;;
3131 *) echo $flag ;;
3132 esac
3133 done
3134 }
3135
3136 cparser_flags(){
3137 for flag; do
3138 case $flag in
3139 -Wno-switch) echo -Wno-switch-enum ;;
3140 -Wno-format-zero-length) ;;
3141 -Wdisabled-optimization) ;;
3142 -Wno-pointer-sign) echo -Wno-other ;;
3143 *) echo $flag ;;
3144 esac
3145 done
3146 }
3147
3148 msvc_common_flags(){
3149 for flag; do
3150 case $flag in
3151 # In addition to specifying certain flags under the compiler
3152 # specific filters, they must be specified here as well or else the
3153 # generic catch all at the bottom will print the original flag.
3154 -Wall) ;;
3155 -Wextra) ;;
3156 -std=c99) ;;
3157 # Common flags
3158 -fomit-frame-pointer) ;;
3159 -g) echo -Z7 ;;
3160 -fno-math-errno) ;;
3161 -fno-common) ;;
3162 -fno-signed-zeros) ;;
3163 -fPIC) ;;
3164 -mthumb) ;;
3165 -march=*) ;;
3166 -lz) echo zlib.lib ;;
3167 -lx264) echo libx264.lib ;;
3168 -l*) echo ${flag#-l}.lib ;;
3169 -L*) echo -libpath:${flag#-L} ;;
3170 *) echo $flag ;;
3171 esac
3172 done
3173 }
3174
3175 msvc_flags(){
3176 msvc_common_flags "$@"
3177 for flag; do
3178 case $flag in
3179 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3180 -wd4554 ;;
3181 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3182 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3183 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3184 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3185 esac
3186 done
3187 }
3188
3189 icl_flags(){
3190 msvc_common_flags "$@"
3191 for flag; do
3192 case $flag in
3193 # Despite what Intel's documentation says -Wall, which is supported
3194 # on Windows, does enable remarks so disable them here.
3195 -Wall) echo $flag -Qdiag-disable:remark ;;
3196 -std=c99) echo -Qstd=c99 ;;
3197 esac
3198 done
3199 }
3200
3201 pgi_flags(){
3202 for flag; do
3203 case $flag in
3204 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3205 -fomit-frame-pointer) echo -Mnoframe ;;
3206 -g) echo -gopt ;;
3207 *) echo $flag ;;
3208 esac
3209 done
3210 }
3211
3212 suncc_flags(){
3213 for flag; do
3214 case $flag in
3215 -march=*|-mcpu=*)
3216 case "${flag#*=}" in
3217 native) echo -xtarget=native ;;
3218 v9|niagara) echo -xarch=sparc ;;
3219 ultrasparc) echo -xarch=sparcvis ;;
3220 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3221 i586|pentium) echo -xchip=pentium ;;
3222 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3223 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3224 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3225 pentium4*) echo -xtarget=pentium4 ;;
3226 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3227 *-sse3) echo -xarch=sse3 ;;
3228 core2) echo -xarch=ssse3 -xchip=core2 ;;
3229 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3230 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3231 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3232 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3233 k8|opteron|athlon64|athlon-fx)
3234 echo -xarch=sse2a ;;
3235 athlon*) echo -xarch=pentium_proa ;;
3236 esac
3237 ;;
3238 -std=c99) echo -xc99 ;;
3239 -fomit-frame-pointer) echo -xregs=frameptr ;;
3240 -fPIC) echo -KPIC -xcode=pic32 ;;
3241 -W*,*) echo $flag ;;
3242 -f*-*|-W*|-mimpure-text) ;;
3243 -shared) echo -G ;;
3244 *) echo $flag ;;
3245 esac
3246 done
3247 }
3248
3249 tms470_flags(){
3250 for flag; do
3251 case $flag in
3252 -march=*|-mcpu=*)
3253 case "${flag#*=}" in
3254 armv7-a|cortex-a*) echo -mv=7a8 ;;
3255 armv7-r|cortex-r*) echo -mv=7r4 ;;
3256 armv7-m|cortex-m*) echo -mv=7m3 ;;
3257 armv6*|arm11*) echo -mv=6 ;;
3258 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3259 echo -mv=5e ;;
3260 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3261 esac
3262 ;;
3263 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3264 -mfpu=vfp) echo --float_support=vfpv2 ;;
3265 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3266 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3267 -msoft-float) echo --float_support=vfplib ;;
3268 -O[0-3]|-mf=*) echo $flag ;;
3269 -g) echo -g -mn ;;
3270 -pds=*) echo $flag ;;
3271 -D*|-I*) echo $flag ;;
3272 --gcc|--abi=*) echo $flag ;;
3273 -me) echo $flag ;;
3274 esac
3275 done
3276 }
3277
3278 probe_cc(){
3279 pfx=$1
3280 _cc=$2
3281
3282 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3283 unset _ld_o _ldflags _ld_lib _ld_path
3284 unset _depflags _DEPCMD _DEPFLAGS
3285 _flags_filter=echo
3286
3287 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3288 _type=llvm_gcc
3289 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3290 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3291 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3292 _cflags_speed='-O3'
3293 _cflags_size='-Os'
3294 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3295 _type=gcc
3296 gcc_version=$($_cc --version | head -n1)
3297 gcc_basever=$($_cc -dumpversion)
3298 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3299 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3300 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3301 if ! $_cc -dumpversion | grep -q '^2\.'; then
3302 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3303 fi
3304 _cflags_speed='-O3'
3305 _cflags_size='-Os'
3306 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3307 _type=icc
3308 _ident=$($_cc --version | head -n1)
3309 _depflags='-MMD'
3310 _cflags_speed='-O3'
3311 _cflags_size='-Os'
3312 _cflags_noopt='-O1'
3313 elif $_cc -v 2>&1 | grep -q xlc; then
3314 _type=xlc
3315 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3316 _cflags_speed='-O5'
3317 _cflags_size='-O5 -qcompact'
3318 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3319 _type=ccc
3320 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3321 _DEPFLAGS='-M'
3322 _cflags_speed='-fast'
3323 _cflags_size='-O1'
3324 _flags_filter=ccc_flags
3325 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3326 test -d "$sysroot" || die "No valid sysroot specified."
3327 _type=armcc
3328 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3329 armcc_conf="$PWD/armcc.conf"
3330 $_cc --arm_linux_configure \
3331 --arm_linux_config_file="$armcc_conf" \
3332 --configure_sysroot="$sysroot" \
3333 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3334 die "Error creating armcc configuration file."
3335 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3336 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3337 as_default="${cross_prefix}gcc"
3338 _depflags='-MMD'
3339 _cflags_speed='-O3'
3340 _cflags_size='-Os'
3341 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3342 _type=tms470
3343 _ident=$($_cc -version | head -n1 | tr -s ' ')
3344 _flags='--gcc --abi=eabi -me'
3345 _cc_e='-ppl -fe=$@'
3346 _cc_o='-fe=$@'
3347 _depflags='-ppa -ppd=$(@:.o=.d)'
3348 _cflags_speed='-O3 -mf=5'
3349 _cflags_size='-O3 -mf=2'
3350 _flags_filter=tms470_flags
3351 elif $_cc -v 2>&1 | grep -q clang; then
3352 _type=clang
3353 _ident=$($_cc --version 2>/dev/null | head -n1)
3354 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3355 _cflags_speed='-O3'
3356 _cflags_size='-Os'
3357 elif $_cc -V 2>&1 | grep -q Sun; then
3358 _type=suncc
3359 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3360 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3361 _DEPFLAGS='-xM1 -xc99'
3362 _ldflags='-std=c99'
3363 _cflags_speed='-O5'
3364 _cflags_size='-O5 -xspace'
3365 _flags_filter=suncc_flags
3366 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3367 _type=pathscale
3368 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3369 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3370 _cflags_speed='-O2'
3371 _cflags_size='-Os'
3372 _flags_filter='filter_out -Wdisabled-optimization'
3373 elif $_cc -v 2>&1 | grep -q Open64; then
3374 _type=open64
3375 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3376 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3377 _cflags_speed='-O2'
3378 _cflags_size='-Os'
3379 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3380 elif $_cc -V 2>&1 | grep -q Portland; then
3381 _type=pgi
3382 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3383 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3384 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3385 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3386 _cflags_noopt="-O1"
3387 _flags_filter=pgi_flags
3388 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3389 _type=armasm
3390 _ident=$($_cc | head -n1)
3391 # 4509: "This form of conditional instruction is deprecated"
3392 _flags="-nologo -ignore 4509"
3393 _flags_filter=armasm_flags
3394 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3395 _type=msvc
3396 _ident=$($_cc 2>&1 | head -n1)
3397 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3398 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3399 _cflags_speed="-O2"
3400 _cflags_size="-O1"
3401 _cflags_noopt="-O1"
3402 if $_cc -nologo- 2>&1 | grep -q Linker; then
3403 _ld_o='-out:$@'
3404 else
3405 _ld_o='-Fe$@'
3406 fi
3407 _cc_o='-Fo$@'
3408 _cc_e='-P -Fi$@'
3409 _flags_filter=msvc_flags
3410 _ld_lib='lib%.a'
3411 _ld_path='-libpath:'
3412 _flags='-nologo'
3413 elif $_cc 2>&1 | grep -q Intel; then
3414 _type=icl
3415 _ident=$($_cc 2>&1 | head -n1)
3416 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3417 # Not only is O3 broken on 13.x+ but it is slower on all previous
3418 # versions (tested) as well.
3419 _cflags_speed="-O2"
3420 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3421 if $_cc 2>&1 | grep -q Linker; then
3422 _ld_o='-out:$@'
3423 else
3424 _ld_o='-Fe$@'
3425 fi
3426 _cc_o='-Fo$@'
3427 _cc_e='-P'
3428 _flags_filter=icl_flags
3429 _ld_lib='lib%.a'
3430 _ld_path='-libpath:'
3431 # -Qdiag-error to make icl error when seeing certain unknown arguments
3432 _flags='-nologo -Qdiag-error:4044,10157'
3433 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3434 # with MSVC which enables it by default.
3435 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3436 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3437 # lld can emulate multiple different linkers; in ms link.exe mode,
3438 # the -? parameter gives the help output which contains an identifyable
3439 # string, while it gives an error in other modes.
3440 _type=lld-link
3441 # The link.exe mode doesn't have a switch for getting the version,
3442 # but we can force it back to gnu mode and get the version from there.
3443 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3444 _ld_o='-out:$@'
3445 _flags_filter=msvc_flags
3446 _ld_lib='lib%.a'
3447 _ld_path='-libpath:'
3448 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3449 _type=cparser
3450 _ident=$($_cc --version | head -n1)
3451 _depflags='-MMD'
3452 _cflags_speed='-O4'
3453 _cflags_size='-O2'
3454 _flags_filter=cparser_flags
3455 fi
3456
3457 eval ${pfx}_type=\$_type
3458 eval ${pfx}_ident=\$_ident
3459 }
3460
3461 set_ccvars(){
3462 eval ${1}_C=\${_cc_c-\${${1}_C}}
3463 eval ${1}_E=\${_cc_e-\${${1}_E}}
3464 eval ${1}_O=\${_cc_o-\${${1}_O}}
3465
3466 if [ -n "$_depflags" ]; then
3467 eval ${1}_DEPFLAGS=\$_depflags
3468 else
3469 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3470 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3471 eval DEP${1}FLAGS=\$_flags
3472 fi
3473 }
3474
3475 probe_cc cc "$cc"
3476 cflags_filter=$_flags_filter
3477 cflags_speed=$_cflags_speed
3478 cflags_size=$_cflags_size
3479 cflags_noopt=$_cflags_noopt
3480 add_cflags $_flags $_cflags
3481 cc_ldflags=$_ldflags
3482 set_ccvars CC
3483
3484 probe_cc hostcc "$host_cc"
3485 host_cflags_filter=$_flags_filter
3486 host_cflags_speed=$_cflags_speed
3487 add_host_cflags $_flags $_cflags
3488 set_ccvars HOSTCC
3489
3490 test -n "$cc_type" && enable $cc_type ||
3491 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3492
3493 : ${as_default:=$cc}
3494 : ${objcc_default:=$cc}
3495 : ${dep_cc_default:=$cc}
3496 : ${ld_default:=$cc}
3497 : ${host_ld_default:=$host_cc}
3498 set_default ar as objcc dep_cc ld host_ld
3499
3500 probe_cc as "$as"
3501 asflags_filter=$_flags_filter
3502 add_asflags $_flags $_cflags
3503 set_ccvars AS
3504
3505 probe_cc objcc "$objcc"
3506 objcflags_filter=$_flags_filter
3507 add_objcflags $_flags $_cflags
3508 set_ccvars OBJC
3509
3510 probe_cc ld "$ld"
3511 ldflags_filter=$_flags_filter
3512 add_ldflags $_flags $_ldflags
3513 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3514 LD_O=${_ld_o-$LD_O}
3515 LD_LIB=${_ld_lib-$LD_LIB}
3516 LD_PATH=${_ld_path-$LD_PATH}
3517
3518 probe_cc hostld "$host_ld"
3519 host_ldflags_filter=$_flags_filter
3520 add_host_ldflags $_flags $_ldflags
3521 HOSTLD_O=${_ld_o-$HOSTLD_O}
3522
3523 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3524 probe_cc depcc "$dep_cc"
3525 CCDEP=${_DEPCMD:-$DEPCMD}
3526 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3527 DEPCCFLAGS=$_flags
3528 fi
3529
3530 if $ar 2>&1 | grep -q Microsoft; then
3531 arflags="-nologo"
3532 ar_o='-out:$@'
3533 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3534 arflags="rq"
3535 ar_o='$@'
3536 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3537 arflags='-Xany -r -c'
3538 ar_o='$@'
3539 else
3540 arflags="rc"
3541 ar_o='$@'
3542 fi
3543
3544 add_cflags $extra_cflags
3545 add_objcflags $extra_objcflags
3546 add_asflags $extra_cflags
3547
3548 if test -n "$sysroot"; then
3549 case "$cc_type" in
3550 gcc|llvm_gcc|clang)
3551 add_cppflags --sysroot="$sysroot"
3552 add_ldflags --sysroot="$sysroot"
3553 ;;
3554 tms470)
3555 add_cppflags -I"$sysinclude"
3556 add_ldflags --sysroot="$sysroot"
3557 ;;
3558 esac
3559 fi
3560
3561 if test "$cpu" = host; then
3562 enabled cross_compile &&
3563 die "--cpu=host makes no sense when cross-compiling."
3564
3565 case "$cc_type" in
3566 gcc|llvm_gcc)
3567 check_native(){
3568 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3569 sed -n "/cc1.*$1=/{
3570 s/.*$1=\\([^ ]*\\).*/\\1/
3571 p
3572 q
3573 }" $TMPE
3574 }
3575 cpu=$(check_native -march || check_native -mcpu)
3576 ;;
3577 esac
3578
3579 test "${cpu:-host}" = host &&
3580 die "--cpu=host not supported with compiler $cc"
3581 fi
3582
3583 # Deal with common $arch aliases
3584 case "$arch" in
3585 aarch64|arm64)
3586 arch="aarch64"
3587 ;;
3588 arm*)
3589 arch="arm"
3590 ;;
3591 mips*|IP*)
3592 case "$arch" in
3593 *el)
3594 add_cppflags -EL
3595 add_ldflags -EL
3596 ;;
3597 *eb)
3598 add_cppflags -EB
3599 add_ldflags -EB
3600 ;;
3601 esac
3602 arch="mips"
3603 ;;
3604 parisc*|hppa*)
3605 arch="parisc"
3606 ;;
3607 "Power Macintosh"|ppc*|powerpc*)
3608 arch="ppc"
3609 ;;
3610 s390|s390x)
3611 arch="s390"
3612 ;;
3613 sh4|sh)
3614 arch="sh4"
3615 ;;
3616 sun4u|sparc*)
3617 arch="sparc"
3618 ;;
3619 tilegx|tile-gx)
3620 arch="tilegx"
3621 ;;
3622 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3623 arch="x86"
3624 ;;
3625 esac
3626
3627 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3628 enable $arch
3629
3630 # Add processor-specific flags
3631 if enabled aarch64; then
3632
3633 case $cpu in
3634 armv*)
3635 cpuflags="-march=$cpu"
3636 ;;
3637 *)
3638 cpuflags="-mcpu=$cpu"
3639 ;;
3640 esac
3641
3642 elif enabled alpha; then
3643
3644 cpuflags="-mcpu=$cpu"
3645
3646 elif enabled arm; then
3647
3648 check_arm_arch() {
3649 check_cpp_condition stddef.h \
3650 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3651 $cpuflags
3652 }
3653
3654 probe_arm_arch() {
3655 if check_arm_arch 4; then echo armv4
3656 elif check_arm_arch 4T; then echo armv4t
3657 elif check_arm_arch 5; then echo armv5
3658 elif check_arm_arch 5E; then echo armv5e
3659 elif check_arm_arch 5T; then echo armv5t
3660 elif check_arm_arch 5TE; then echo armv5te
3661 elif check_arm_arch 5TEJ; then echo armv5te
3662 elif check_arm_arch 6; then echo armv6
3663 elif check_arm_arch 6J; then echo armv6j
3664 elif check_arm_arch 6K; then echo armv6k
3665 elif check_arm_arch 6Z; then echo armv6z
3666 elif check_arm_arch 6ZK; then echo armv6zk
3667 elif check_arm_arch 6T2; then echo armv6t2
3668 elif check_arm_arch 7; then echo armv7
3669 elif check_arm_arch 7A 7_A; then echo armv7-a
3670 elif check_arm_arch 7S; then echo armv7-a
3671 elif check_arm_arch 7R 7_R; then echo armv7-r
3672 elif check_arm_arch 7M 7_M; then echo armv7-m
3673 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3674 elif check_arm_arch 8A 8_A; then echo armv8-a
3675 fi
3676 }
3677
3678 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3679
3680 case $cpu in
3681 armv*)
3682 cpuflags="-march=$cpu"
3683 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3684 ;;
3685 *)
3686 cpuflags="-mcpu=$cpu"
3687 case $cpu in
3688 cortex-a*) subarch=armv7a ;;
3689 cortex-r*) subarch=armv7r ;;
3690 cortex-m*) enable thumb; subarch=armv7m ;;
3691 arm11*) subarch=armv6 ;;
3692 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3693 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3694 *) subarch=$(probe_arm_arch) ;;
3695 esac
3696 ;;
3697 esac
3698
3699 case "$subarch" in
3700 armv5t*) enable fast_clz ;;
3701 armv[6-8]*) enable fast_clz fast_unaligned ;;
3702 esac
3703
3704 elif enabled avr32; then
3705
3706 case $cpu in
3707 ap7[02]0[0-2])
3708 subarch="avr32_ap"
3709 cpuflags="-mpart=$cpu"
3710 ;;
3711 ap)
3712 subarch="avr32_ap"
3713 cpuflags="-march=$cpu"
3714 ;;
3715 uc3[ab]*)
3716 subarch="avr32_uc"
3717 cpuflags="-mcpu=$cpu"
3718 ;;
3719 uc)
3720 subarch="avr32_uc"
3721 cpuflags="-march=$cpu"
3722 ;;
3723 esac
3724
3725 elif enabled bfin; then
3726
3727 cpuflags="-mcpu=$cpu"
3728
3729 elif enabled mips; then
3730
3731 cpuflags="-march=$cpu"
3732
3733 elif enabled ppc; then
3734
3735 disable ldbrx
3736
3737 case $(tolower $cpu) in
3738 601|ppc601|powerpc601)
3739 cpuflags="-mcpu=601"
3740 disable altivec
3741 ;;
3742 603*|ppc603*|powerpc603*)
3743 cpuflags="-mcpu=603"
3744 disable altivec
3745 ;;
3746 604*|ppc604*|powerpc604*)
3747 cpuflags="-mcpu=604"
3748 disable altivec
3749 ;;
3750 g3|75*|ppc75*|powerpc75*)
3751 cpuflags="-mcpu=750"
3752 disable altivec
3753 ;;
3754 g4|745*|ppc745*|powerpc745*)
3755 cpuflags="-mcpu=7450"
3756 disable vsx
3757 ;;
3758 74*|ppc74*|powerpc74*)
3759 cpuflags="-mcpu=7400"
3760 disable vsx
3761 ;;
3762 g5|970|ppc970|powerpc970)
3763 cpuflags="-mcpu=970"
3764 disable vsx
3765 ;;
3766 power[3-6]*)
3767 cpuflags="-mcpu=$cpu"
3768 disable vsx
3769 ;;
3770 power[7-8]*)
3771 cpuflags="-mcpu=$cpu"
3772 enable ldbrx
3773 ;;
3774 cell)
3775 cpuflags="-mcpu=cell"
3776 enable ldbrx
3777 disable vsx
3778 ;;
3779 e500mc)
3780 cpuflags="-mcpu=e500mc"
3781 disable altivec
3782 ;;
3783 e500v2)
3784 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3785 disable altivec
3786 disable dcbzl
3787 ;;
3788 e500)
3789 cpuflags="-mcpu=8540 -mhard-float"
3790 disable altivec
3791 disable dcbzl
3792 ;;
3793 esac
3794
3795 elif enabled sparc; then
3796
3797 case $cpu in
3798 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3799 cpuflags="-mcpu=$cpu"
3800 ;;
3801 ultrasparc*|niagara[234])
3802 cpuflags="-mcpu=$cpu"
3803 ;;
3804 esac
3805
3806 elif enabled x86; then
3807
3808 case $cpu in
3809 i[345]86|pentium)
3810 cpuflags="-march=$cpu"
3811 disable i686
3812 disable mmx
3813 ;;
3814 # targets that do NOT support nopl and conditional mov (cmov)
3815 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3816 cpuflags="-march=$cpu"
3817 disable i686
3818 ;;
3819 # targets that do support nopl and conditional mov (cmov)
3820 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3821 cpuflags="-march=$cpu"
3822 enable i686
3823 enable fast_cmov
3824 ;;
3825 # targets that do support conditional mov but on which it's slow
3826 pentium4|pentium4m|prescott|nocona)
3827 cpuflags="-march=$cpu"
3828 enable i686
3829 disable fast_cmov
3830 ;;
3831 esac
3832
3833 fi
3834
3835 if [ "$cpu" != generic ]; then
3836 add_cflags $cpuflags
3837 add_asflags $cpuflags
3838 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3839 fi
3840
3841 # compiler sanity check
3842 check_exec <<EOF
3843 int main(void){ return 0; }
3844 EOF
3845 if test "$?" != 0; then
3846 echo "$cc is unable to create an executable file."
3847 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3848 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3849 echo "Only do this if you know what cross compiling means."
3850 fi
3851 die "C compiler test failed."
3852 fi
3853
3854 add_cppflags -D_ISOC99_SOURCE
3855
3856 # some compilers silently accept -std=c11, so we also need to check that the
3857 # version macro is defined properly
3858 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3859 add_cflags -std=c11 ||
3860 check_cflags -std=c99
3861
3862 check_cppflags -D_FILE_OFFSET_BITS=64
3863 check_cppflags -D_LARGEFILE_SOURCE
3864
3865 add_host_cppflags -D_ISOC99_SOURCE
3866 check_host_cflags -std=c99
3867 check_host_cflags -Wall
3868 check_host_cflags $host_cflags_speed
3869
3870 check_64bit(){
3871 arch32=$1
3872 arch64=$2
3873 expr=$3
3874 check_code cc "" "int test[2*($expr) - 1]" &&
3875 subarch=$arch64 || subarch=$arch32
3876 }
3877
3878 case "$arch" in
3879 aarch64|alpha|ia64)
3880 spic=$shared
3881 ;;
3882 mips)
3883 check_64bit mips mips64 '_MIPS_SIM > 1'
3884 spic=$shared
3885 ;;
3886 parisc)
3887 check_64bit parisc parisc64 'sizeof(void *) > 4'
3888 spic=$shared
3889 ;;
3890 ppc)
3891 check_64bit ppc ppc64 'sizeof(void *) > 4'
3892 spic=$shared
3893 ;;
3894 s390)
3895 check_64bit s390 s390x 'sizeof(void *) > 4'
3896 spic=$shared
3897 ;;
3898 sparc)
3899 check_64bit sparc sparc64 'sizeof(void *) > 4'
3900 spic=$shared
3901 ;;
3902 x86)
3903 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3904 if test "$subarch" = "x86_64"; then
3905 spic=$shared
3906 fi
3907 ;;
3908 esac
3909
3910 enable $subarch
3911 enabled spic && enable_weak pic
3912
3913 enabled x86_64 && objformat=elf64 || objformat="elf32"
3914
3915 # OS specific
3916 case $target_os in
3917 aix)
3918 SHFLAGS=-shared
3919 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3920 enabled shared && add_ldflags -Wl,-brtl
3921 ;;
3922 android)
3923 disable symver
3924 enable section_data_rel_ro
3925 SLIB_INSTALL_NAME='$(SLIBNAME)'
3926 SLIB_INSTALL_LINKS=
3927 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3928 ;;
3929 haiku)
3930 prefix_default="/boot/common"
3931 network_extralibs="-lnetwork"
3932 host_extralibs=
3933 ;;
3934 sunos)
3935 SHFLAGS='-shared -Wl,-h,$$(@F)'
3936 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3937 network_extralibs="-lsocket -lnsl"
3938 # When using suncc to build, the Solaris linker will mark
3939 # an executable with each instruction set encountered by
3940 # the Solaris assembler. As our libraries contain their own
3941 # guards for processor-specific code, instead suppress
3942 # generation of the HWCAPS ELF section on Solaris x86 only.
3943 enabled_all suncc x86 &&
3944 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3945 add_ldflags -Wl,-M,mapfile
3946 nm_default='nm -P -g'
3947 version_script='-M'
3948 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3949 ;;
3950 netbsd)
3951 disable symver
3952 oss_indev_extralibs="-lossaudio"
3953 oss_outdev_extralibs="-lossaudio"
3954 ;;
3955 openbsd|bitrig)
3956 disable symver
3957 SHFLAGS='-shared'
3958 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3959 SLIB_INSTALL_LINKS=
3960 oss_indev_extralibs="-lossaudio"
3961 oss_outdev_extralibs="-lossaudio"
3962 ;;
3963 dragonfly)
3964 disable symver
3965 ;;
3966 freebsd)
3967 ;;
3968 bsd/os)
3969 add_extralibs -lpoll -lgnugetopt
3970 ;;
3971 darwin)
3972 enabled ppc && add_asflags -force_cpusubtype_ALL
3973 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3974 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3975 add_ldflags -Wl,-dynamic,-search_paths_first
3976 check_cflags -Werror=partial-availability
3977 SLIBSUF=".dylib"
3978 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3979 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3980 enabled x86_64 && objformat="macho64" || objformat="macho32"
3981 enabled_any pic shared ||
3982 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3983 check_header dispatch/dispatch.h &&
3984 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3985 ;;
3986 msys*)
3987 die "Native MSYS builds are discouraged, please use the MINGW environment."
3988 ;;
3989 mingw32*|mingw64*)
3990 if test $target_os = "mingw32ce"; then
3991 disable network
3992 else
3993 target_os=mingw32
3994 fi
3995 LIBTARGET=i386
3996 if enabled x86_64; then
3997 LIBTARGET="i386:x86-64"
3998 elif enabled arm; then
3999 LIBTARGET=arm-wince
4000 fi
4001 check_ldflags -Wl,--nxcompat
4002 check_ldflags -Wl,--dynamicbase
4003 shlibdir_default="$bindir_default"
4004 SLIBPREF=""
4005 SLIBSUF=".dll"
4006 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4007 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4008 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4009 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4010 SLIB_INSTALL_LINKS=
4011 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4012 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4013 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4014 enabled x86_64 && objformat="win64" || objformat="win32"
4015 dlltool="${cross_prefix}dlltool"
4016 ranlib=:
4017 enable dos_paths
4018 ;;
4019 win32|win64)
4020 disable symver
4021 if enabled shared; then
4022 # Link to the import library instead of the normal static library
4023 # for shared libs.
4024 LD_LIB='%.lib'
4025 # Cannot build both shared and static libs with MSVC or icl.
4026 disable static
4027 fi
4028 shlibdir_default="$bindir_default"
4029 SLIBPREF=""
4030 SLIBSUF=".dll"
4031 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4032 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4033 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4034 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4035 SLIB_INSTALL_LINKS=
4036 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4037 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4038 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4039 enabled x86_64 && objformat="win64" || objformat="win32"
4040 ranlib=:
4041 enable dos_paths
4042 ;;
4043 cygwin*)
4044 target_os=cygwin
4045 shlibdir_default="$bindir_default"
4046 SLIBPREF="cyg"
4047 SLIBSUF=".dll"
4048 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4049 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4050 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4051 SLIB_INSTALL_LINKS=
4052 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4053 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4054 enabled x86_64 && objformat="win64" || objformat="win32"
4055 enable dos_paths
4056 ;;
4057 *-dos|freedos|opendos)
4058 network_extralibs="-lsocket"
4059 objformat="coff"
4060 enable dos_paths
4061 add_cppflags -U__STRICT_ANSI__
4062 ;;
4063 linux)
4064 enable dv1394
4065 enable section_data_rel_ro
4066 ;;
4067 irix*)
4068 target_os=irix
4069 ranlib="echo ignoring ranlib"
4070 ;;
4071 os/2*)
4072 ln_s="cp -f"
4073 objformat="aout"
4074 add_cppflags -D_GNU_SOURCE
4075 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4076 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4077 LIBSUF="_s.a"
4078 SLIBPREF=""
4079 SLIBSUF=".dll"
4080 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4081 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4082 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4083 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4084 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4085 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4086 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4087 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4088 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4089 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4090 enable dos_paths
4091 ;;
4092 gnu/kfreebsd)
4093 add_cppflags -D_BSD_SOURCE
4094 ;;
4095 gnu)
4096 ;;
4097 qnx)
4098 add_cppflags -D_QNX_SOURCE
4099 network_extralibs="-lsocket"
4100 ;;
4101 symbian)
4102 SLIBSUF=".dll"
4103 enable dos_paths
4104 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4105 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4106 add_ldflags -Wl,--target1-abs,--no-undefined \
4107 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4108 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4109 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4110 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4111 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4112 ;;
4113 osf1)
4114 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4115 ;;
4116 minix)
4117 ;;
4118 none)
4119 ;;
4120 *)
4121 die "Unknown OS '$target_os'."
4122 ;;
4123 esac
4124
4125 # determine libc flavour
4126
4127 probe_libc(){
4128 pfx=$1
4129 pfx_no_=${pfx%_}
4130 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4131 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4132 eval ${pfx}libc_type=uclibc
4133 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4134 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4135 eval ${pfx}libc_type=glibc
4136 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4137 # MinGW headers can be installed on Cygwin, so check for newlib first.
4138 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4139 eval ${pfx}libc_type=newlib
4140 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4141 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4142 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4143 eval ${pfx}libc_type=mingw64
4144 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4145 eval test \$${pfx_no_}cc_type = "gcc" &&
4146 add_${pfx}cppflags -D__printf__=__gnu_printf__
4147 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4148 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4149 eval ${pfx}libc_type=mingw32
4150 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4151 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4152 die "ERROR: MinGW32 runtime version must be >= 3.15."
4153 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4154 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4155 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4156 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4157 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4158 eval test \$${pfx_no_}cc_type = "gcc" &&
4159 add_${pfx}cppflags -D__printf__=__gnu_printf__
4160 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4161 eval ${pfx}libc_type=msvcrt
4162 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4163 if [ "$pfx" = host_ ]; then
4164 add_host_cppflags -Dsnprintf=_snprintf
4165 else
4166 add_compat strtod.o strtod=avpriv_strtod
4167 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4168 _snprintf=avpriv_snprintf \
4169 vsnprintf=avpriv_vsnprintf
4170 fi
4171 fi
4172 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4173 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4174 # 0x601 by default unless something else is set by the user.
4175 # This can easily lead to us detecting functions only present
4176 # in such new versions and producing binaries requiring windows 7.0.
4177 # Therefore explicitly set the default to XP unless the user has
4178 # set something else on the command line.
4179 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4180 # family. For these cases, configure is free to use any functions
4181 # found in the SDK headers by default. (Alternatively, we could force
4182 # _WIN32_WINNT to 0x0602 in that case.)
4183 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4184 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4185 #ifdef WINAPI_FAMILY
4186 #include <winapifamily.h>
4187 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4188 #error not desktop
4189 #endif
4190 #endif
4191 EOF
4192 if [ "$pfx" = "" ]; then
4193 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4194 fi
4195 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4196 eval ${pfx}libc_type=klibc
4197 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4198 eval ${pfx}libc_type=bionic
4199 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4200 eval ${pfx}libc_type=solaris
4201 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4202 else
4203 eval ${pfx}libc_type=default
4204 add_${pfx}cppflags -D_DEFAULT_SOURCE
4205 fi
4206 }
4207
4208 probe_libc
4209 test -n "$libc_type" && enable libc_$libc_type
4210 probe_libc host_
4211 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4212
4213 # hacks for compiler/libc/os combinations
4214
4215 case $libc_type in
4216 bionic)
4217 add_compat strtod.o strtod=avpriv_strtod
4218 ;;
4219 glibc)
4220 if enabled tms470; then
4221 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4222 add_cppflags -D__USER_LABEL_PREFIX__=
4223 add_cppflags -D__builtin_memset=memset
4224 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4225 add_cflags -pds=48 # incompatible redefinition of macro
4226 elif enabled ccc; then
4227 add_ldflags -Wl,-z,now # calls to libots crash without this
4228 fi
4229 ;;
4230 esac
4231
4232 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4233 add_cppflags '-I\$(SRC_PATH)/compat/float'
4234
4235 esc(){
4236 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4237 }
4238
4239 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4240
4241 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4242
4243 set_default $PATHS_LIST
4244 set_default nm
4245
4246 # we need to build at least one lib type
4247 if ! enabled_any static shared; then
4248 cat <<EOF
4249 At least one library type must be built.
4250 Specify --enable-static to build the static libraries or --enable-shared to
4251 build the shared libraries as well. To only build the shared libraries specify
4252 --disable-static in addition to --enable-shared.
4253 EOF
4254 exit 1
4255 fi
4256
4257 disabled optimizations || check_cflags -fomit-frame-pointer
4258
4259 enable_weak_pic() {
4260 disabled pic && return
4261 enable pic
4262 add_cppflags -DPIC
4263 case "$target_os" in
4264 mingw*|cygwin*)
4265 ;;
4266 *)
4267 add_cflags -fPIC
4268 ;;
4269 esac
4270 add_asflags -fPIC
4271 }
4272
4273 enabled pic && enable_weak_pic
4274
4275 check_cc <<EOF || die "Symbol mangling check failed."
4276 int ff_extern;
4277 EOF
4278 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4279 extern_prefix=${sym%%ff_extern*}
4280
4281 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4282
4283 _restrict=
4284 for restrict_keyword in restrict __restrict__ __restrict; do
4285 check_cc <<EOF && _restrict=$restrict_keyword && break
4286 void foo(char * $restrict_keyword p);
4287 EOF
4288 done
4289
4290 check_cc <<EOF && enable pragma_deprecated
4291 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4292 EOF
4293
4294 check_cc <<EOF && enable attribute_packed
4295 struct { int x; } __attribute__((packed)) x;
4296 EOF
4297
4298 check_cc <<EOF && enable attribute_may_alias
4299 union { int x; } __attribute__((may_alias)) x;
4300 EOF
4301
4302 check_cc <<EOF || die "endian test failed"
4303 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4304 EOF
4305 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4306
4307 check_gas() {
4308 log "check_gas using '$as' as AS"
4309 # :vararg is used on aarch64, arm and ppc altivec
4310 check_as <<EOF || return 1
4311 .macro m n, y:vararg=0
4312 \n: .int \y
4313 .endm
4314 m x
4315 EOF
4316 # .altmacro is only used in arm asm
4317 ! enabled arm || check_as <<EOF || return 1
4318 .altmacro
4319 EOF
4320 enable gnu_as
4321 return 0
4322 }
4323
4324 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4325 nogas=:
4326 enabled_any arm aarch64 && nogas=die
4327 enabled_all ppc altivec && nogas=warn
4328 as_noop=-v
4329
4330 case $as_type in
4331 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4332 gcc) gaspp_as_type=gas ;;
4333 *) gaspp_as_type=$as_type ;;
4334 esac
4335
4336 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4337
4338 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4339 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4340
4341 if ! check_gas ; then
4342 as=${gas:=$as}
4343 check_gas || \
4344 $nogas "GNU assembler not found, install/update gas-preprocessor"
4345 fi
4346
4347 check_as <<EOF && enable as_func
4348 .func test
4349 .endfunc
4350 EOF
4351 fi
4352
4353 check_inline_asm inline_asm_labels '"1:\n"'
4354
4355 if enabled aarch64; then
4356 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4357 # internal assembler in clang 3.3 does not support this instruction
4358 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4359 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4360
4361 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4362
4363 elif enabled alpha; then
4364
4365 check_cflags -mieee
4366
4367 elif enabled arm; then
4368
4369 enabled msvc && check_cpp_condition stddef.h &q