7a7fbb290661d82e59db47a5b3f3b0dc7263fcf8
[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-cuvid Nvidia CUVID video decode acceleration
241 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
243 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
244 --enable-libnpp Nvidia CUDA processing
245 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246 --enable-nvenc Nvidia video encoding
247 --enable-omx OpenMAX IL
248 --enable-omx-rpi OpenMAX IL for Raspberry Pi
249 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
250 --enable-vda Apple Video Decode Acceleration [auto]
251 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254 --arch=ARCH select architecture [$arch]
255 --cpu=CPU select the minimum required CPU (affects
256 instruction selection, may crash on older CPUs)
257 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
258 --enable-cross-compile assume a cross-compiler is used
259 --sysroot=PATH root of cross-build tree
260 --sysinclude=PATH location of cross-build system headers
261 --target-os=OS compiler targets OS [$target_os]
262 --target-exec=CMD command to run executables on target
263 --target-path=DIR path to view of build directory on target
264 --target-samples=DIR path to samples directory on target
265 --toolchain=NAME set tool defaults according to NAME
266 --nm=NM use nm tool
267 --ar=AR use archive tool AR [$ar_default]
268 --as=AS use assembler AS [$as_default]
269 --cc=CC use C compiler CC [$cc_default]
270 --objcc=OCC use ObjC compiler OCC [$cc_default]
271 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
272 --ld=LD use linker LD
273 --x86asmexe=X86ASM use x86 assembler X86ASM
274 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
275 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276 --host-cc=HOSTCC use host C compiler HOSTCC
277 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
278 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279 --host-ld=HOSTLD use host linker HOSTLD
280 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
281 --host-libs=HLIBS use libs HLIBS when linking for host
282 --host-os=OS compiler host OS [$target_os]
283 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
284 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
285 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288 --extra-libs=ELIBS add ELIBS [$ELIBS]
289 --extra-version=STRING version string suffix []
290 --optflags=OPTFLAGS override optimization-related compiler flags
291 --enable-pic build position-independent code
292 --enable-thumb compile for Thumb instruction set
293 --enable-lto use link-time optimization
294 --env="ENV=override" override the environment variables
295
296 Advanced options (experts only):
297 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
298 --custom-allocator=NAME use a supported custom allocator
299 --disable-symver disable symbol versioning
300 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301 --disable-safe-bitstream-reader
302 disable buffer boundary checking in bitreaders
303 (faster, but may crash)
304 --enable-sram allow use of on-chip SRAM
305
306 Optimization options (experts only):
307 --disable-asm disable all assembly optimizations
308 --disable-altivec disable AltiVec optimizations
309 --disable-vsx disable VSX optimizations
310 --disable-power8 disable POWER8 optimizations
311 --disable-amd3dnow disable 3DNow! optimizations
312 --disable-amd3dnowext disable 3DNow! extended optimizations
313 --disable-mmx disable MMX optimizations
314 --disable-mmxext disable MMXEXT optimizations
315 --disable-sse disable SSE optimizations
316 --disable-sse2 disable SSE2 optimizations
317 --disable-sse3 disable SSE3 optimizations
318 --disable-ssse3 disable SSSE3 optimizations
319 --disable-sse4 disable SSE4 optimizations
320 --disable-sse42 disable SSE4.2 optimizations
321 --disable-avx disable AVX optimizations
322 --disable-xop disable XOP optimizations
323 --disable-fma3 disable FMA3 optimizations
324 --disable-fma4 disable FMA4 optimizations
325 --disable-avx2 disable AVX2 optimizations
326 --disable-armv5te disable armv5te optimizations
327 --disable-armv6 disable armv6 optimizations
328 --disable-armv6t2 disable armv6t2 optimizations
329 --disable-vfp disable VFP optimizations
330 --disable-neon disable NEON optimizations
331 --disable-inline-asm disable use of inline assembly
332 --disable-x86asm disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335 --disable-debug disable debugging symbols
336 --enable-debug=LEVEL set the debug level [$debuglevel]
337 --disable-optimizations disable compiler optimizations
338 --enable-extra-warnings enable more compiler warnings
339 --samples=PATH location of test samples for FATE, if not set use
340 \$LIBAV_SAMPLES at make invocation time.
341 --enable-neon-clobber-test check NEON registers for clobbering (should be
342 used only for debugging purposes)
343 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344 should be used only for debugging purposes)
345 --enable-random randomly enable/disable components
346 --disable-random
347 --enable-random=LIST randomly enable/disable specific components or
348 --disable-random=LIST component groups. LIST is a comma-separated list
349 of NAME[:PROB] entries where NAME is a component
350 (group) and PROB the probability associated with
351 NAME (default 0.5).
352 --random-seed=VALUE seed value for --enable/disable-random
353 --disable-valgrind-backtrace do not print a backtrace under Valgrind
354 (only applies to --disable-optimizations builds)
355 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
356 in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360 exit 0
361 }
362
363 quotes='""'
364
365 log(){
366 echo "$@" >> $logfile
367 }
368
369 log_file(){
370 log BEGIN $1
371 i=1
372 while read line; do
373 printf '%5s %s\n' "${i}" "${line}"
374 i=$(($i+1))
375 done < $1 >> $logfile
376 log END $1
377 }
378
379 echolog(){
380 log "$@"
381 echo "$@"
382 }
383
384 warn(){
385 log "WARNING: $*"
386 WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390 echolog "$@"
391 cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git. If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397 if disabled logging; then
398 cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402 else
403 cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407 fi
408 exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421 echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425 v=$(echo "$1" | sed "s/'/'\\\\''/g")
426 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427 echo "$v"
428 }
429
430 cleanws(){
431 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
432 }
433
434 filter(){
435 pat=$1
436 shift
437 for v; do
438 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439 done
440 }
441
442 filter_out(){
443 pat=$1
444 shift
445 for v; do
446 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447 done
448 }
449
450 map(){
451 m=$1
452 shift
453 for v; do eval $m; done
454 }
455
456 add_suffix(){
457 suffix=$1
458 shift
459 for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463 value=$1
464 shift
465 for var in $*; do
466 eval $var=$value
467 done
468 }
469
470 set_weak(){
471 value=$1
472 shift
473 for var; do
474 eval : \${$var:=$value}
475 done
476 }
477
478 sanitize_var_name(){
479 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483 var=$1
484 shift
485 eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489 eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:=0}
495 eval ${pvar}_${level}="\$$pvar"
496 eval ${pvar}_level=$(($level+1))
497 done
498 }
499
500 popvar(){
501 for pvar in $*; do
502 eval level=\${${pvar}_level:-0}
503 test $level = 0 && continue
504 eval level=$(($level-1))
505 eval $pvar="\${${pvar}_${level}}"
506 eval ${pvar}_level=$level
507 eval unset ${pvar}_${level}
508 done
509 }
510
511 enable(){
512 set_all yes $*
513 }
514
515 disable(){
516 set_all no $*
517 }
518
519 enable_weak(){
520 set_weak yes $*
521 }
522
523 disable_weak(){
524 set_weak no $*
525 }
526
527 enable_sanitized(){
528 for var; do
529 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 disable_sanitized(){
534 for var; do
535 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536 done
537 }
538
539 do_enable_deep(){
540 for var; do
541 enabled $var && continue
542 eval sel="\$${var}_select"
543 eval sgs="\$${var}_suggest"
544 pushvar var sgs
545 enable_deep $sel
546 popvar sgs
547 enable_deep_weak $sgs
548 popvar var
549 done
550 }
551
552 enable_deep(){
553 do_enable_deep $*
554 enable $*
555 }
556
557 enable_deep_weak(){
558 for var; do
559 disabled $var && continue
560 pushvar var
561 do_enable_deep $var
562 popvar var
563 enable_weak $var
564 done
565 }
566
567 enabled(){
568 test "${1#!}" = "$1" && op== || op=!=
569 eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573 test "${1#!}" = "$1" && op== || op=!=
574 eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578 for opt; do
579 enabled $opt || return 1
580 done
581 }
582
583 disabled_all(){
584 for opt; do
585 disabled $opt || return 1
586 done
587 }
588
589 enabled_any(){
590 for opt; do
591 enabled $opt && return 0
592 done
593 }
594
595 disabled_any(){
596 for opt; do
597 disabled $opt && return 0
598 done
599 return 1
600 }
601
602 set_default(){
603 for opt; do
604 eval : \${$opt:=\$${opt}_default}
605 done
606 }
607
608 is_in(){
609 value=$1
610 shift
611 for var in $*; do
612 [ $var = $value ] && return 0
613 done
614 return 1
615 }
616
617 check_deps(){
618 for cfg; do
619 enabled ${cfg}_checking && die "Circular dependency for $cfg."
620 disabled ${cfg}_checking && continue
621 enable ${cfg}_checking
622
623 eval dep_all="\$${cfg}_deps"
624 eval dep_any="\$${cfg}_deps_any"
625 eval dep_con="\$${cfg}_conflict"
626 eval dep_sel="\$${cfg}_select"
627 eval dep_sgs="\$${cfg}_suggest"
628 eval dep_ifa="\$${cfg}_if"
629 eval dep_ifn="\$${cfg}_if_any"
630
631 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637 enabled_all $dep_all || disable $cfg
638 enabled_any $dep_any || disable $cfg
639 disabled_all $dep_con || disable $cfg
640 disabled_any $dep_sel && disable $cfg
641
642 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644 for dep in $dep_all $dep_any $dep_sel $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
650 disable ${cfg}_checking
651 done
652 }
653
654 print_config(){
655 pfx=$1
656 files=$2
657 shift 2
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
660 {
661 c = \"$pfx\" toupper(\$1);
662 v = \$2;
663 sub(/yes/, 1, v);
664 sub(/no/, 0, v);
665 for (f in files) {
666 file = files[f];
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
674 }
675 }
676 }"
677 }
678
679 print_enabled(){
680 suf=$1
681 shift
682 for v; do
683 enabled $v && printf "%s\n" ${v%$suf}
684 done
685 }
686
687 append(){
688 var=$1
689 shift
690 eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694 var=$1
695 shift
696 eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700 var=$1
701 uniq_list=""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
704 done
705 eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709 var=$1
710 tmpvar=
711 for entry in $(eval echo \$$var); do
712 tmpvar="$tmpvar $(eval echo \$${entry})"
713 done
714 eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718 append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722 append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726 append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730 append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734 append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738 append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742 append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746 append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750 append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754 prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758 append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762 append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766 append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770 append compat_objs $1
771 shift
772 map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776 log "$@"
777 "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781 eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785 eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789 log check_cc "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796 log check_objcc "$@"
797 cat > $TMPC
798 log_file $TMPC
799 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803 log check_cpp "$@"
804 cat > $TMPC
805 log_file $TMPC
806 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810 eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814 log check_as "$@"
815 cat > $TMPS
816 log_file $TMPS
817 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821 log check_inline_asm "$@"
822 name="$1"
823 code="$2"
824 shift 2
825 disable $name
826 check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832 log check_insn "$@"
833 check_inline_asm ${1}_inline "\"$2\""
834 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838 log check_x86asm "$@"
839 echo "$1" > $TMPS
840 log_file $TMPS
841 shift 1
842 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846 eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850 log check_ld "$@"
851 flags=$(filter_out '-l*' "$@")
852 libs=$(filter '-l*' "$@")
853 check_cc $($cflags_filter $flags) || return
854 flags=$($ldflags_filter $flags)
855 libs=$($ldflags_filter $libs)
856 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860 hdr=$1
861 test "${hdr%.h}" = "${hdr}" &&
862 echo "#include $hdr" ||
863 echo "#include <$hdr>"
864 }
865
866 check_code(){
867 log check_code "$@"
868 check=$1
869 headers=$2
870 code=$3
871 shift 3
872 {
873 for hdr in $headers; do
874 print_include $hdr
875 done
876 echo "int main(void) { $code; return 0; }"
877 } | check_$check "$@"
878 }
879
880 check_cppflags(){
881 log check_cppflags "$@"
882 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888 log test_cflags "$@"
889 set -- $($cflags_filter "$@")
890 check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896 log check_cflags "$@"
897 test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901 log test_objcflags "$@"
902 set -- $($objcflags_filter "$@")
903 check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909 log check_objcflags "$@"
910 test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914 log test_ldflags "$@"
915 check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921 log check_ldflags "$@"
922 test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926 log test_stripflags "$@"
927 # call check_cc to get a fresh TMPO
928 check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931 check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935 log check_stripflags "$@"
936 test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940 log check_header "$@"
941 header=$1
942 shift
943 disable_sanitized $header
944 check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951 log check_func "$@"
952 func=$1
953 shift
954 disable $func
955 check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962 log check_mathfunc "$@"
963 func=$1
964 narg=$2
965 shift 2
966 test $narg = 2 && args="f, g" || args="f"
967 disable $func
968 check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976 log check_func_headers "$@"
977 headers=$1
978 funcs=$2
979 shift 2
980 {
981 for hdr in $headers; do
982 print_include $hdr
983 done
984 for func in $funcs; do
985 echo "long check_$func(void) { return (long) $func; }"
986 done
987 echo "int main(void) { return 0; }"
988 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992 log check_cpp_condition "$@"
993 header=$1
994 condition=$2
995 shift 2
996 check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005 log test_cflags_cpp "$@"
1006 flags=$1
1007 condition=$2
1008 shift 2
1009 set -- $($cflags_filter "$flags")
1010 check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018 log check_lib "$@"
1019 name="$1"
1020 headers="$2"
1021 funcs="$3"
1022 shift 3
1023 disable $name
1024 check_func_headers "$headers" "$funcs" "$@" &&
1025 enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 check_pkg_config(){
1029 log check_pkg_config "$@"
1030 name="$1"
1031 pkg_version="$2"
1032 pkg="${2%% *}"
1033 headers="$3"
1034 funcs="$4"
1035 shift 4
1036 disable $name
1037 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041 enable $name &&
1042 add_cflags "$pkg_cflags" &&
1043 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1044 }
1045
1046 check_exec(){
1047 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1048 }
1049
1050 check_exec_crash(){
1051 log check_exec_crash "$@"
1052 code=$(cat)
1053
1054 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1055 # are safe but may not be available everywhere. Thus we use
1056 # raise(SIGTERM) instead. The check is run in a subshell so we
1057 # can redirect the "Terminated" message from the shell. SIGBUS
1058 # is not defined by standard C so it is used conditionally.
1059
1060 (check_exec "$@") >> $logfile 2>&1 <<EOF
1061 #include <signal.h>
1062 static void sighandler(int sig){
1063 raise(SIGTERM);
1064 }
1065 int foo(void){
1066 $code
1067 }
1068 int (*func_ptr)(void) = foo;
1069 int main(void){
1070 signal(SIGILL, sighandler);
1071 signal(SIGFPE, sighandler);
1072 signal(SIGSEGV, sighandler);
1073 #ifdef SIGBUS
1074 signal(SIGBUS, sighandler);
1075 #endif
1076 return func_ptr();
1077 }
1078 EOF
1079 }
1080
1081 check_type(){
1082 log check_type "$@"
1083 headers=$1
1084 type=$2
1085 shift 2
1086 disable_sanitized "$type"
1087 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1088 }
1089
1090 check_struct(){
1091 log check_struct "$@"
1092 headers=$1
1093 struct=$2
1094 member=$3
1095 shift 3
1096 disable_sanitized "${struct}_${member}"
1097 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1098 enable_sanitized "${struct}_${member}"
1099 }
1100
1101 check_builtin(){
1102 log check_builtin "$@"
1103 name=$1
1104 headers=$2
1105 builtin=$3
1106 shift 3
1107 disable "$name"
1108 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1109 }
1110
1111 check_compile_assert(){
1112 log check_compile_assert "$@"
1113 name=$1
1114 headers=$2
1115 condition=$3
1116 shift 3
1117 disable "$name"
1118 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1119 }
1120
1121 require(){
1122 log require "$@"
1123 name_version="$1"
1124 name="${1%% *}"
1125 headers="$2"
1126 func="$3"
1127 shift 3
1128 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1129 }
1130
1131 require_header(){
1132 log require "$@"
1133 header="$1"
1134 shift
1135 check_header "$header" "$@" || die "ERROR: $header not found"
1136 }
1137
1138 require_cpp_condition(){
1139 log require "$@"
1140 header="$1"
1141 condition="$2"
1142 shift 2
1143 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1144 }
1145
1146 require_pkg_config(){
1147 log require_pkg_config "$@"
1148 pkg_version="$2"
1149 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1150 }
1151
1152 hostcc_e(){
1153 eval printf '%s\\n' $HOSTCC_E
1154 }
1155
1156 hostcc_o(){
1157 eval printf '%s\\n' $HOSTCC_O
1158 }
1159
1160 check_host_cc(){
1161 log check_host_cc "$@"
1162 cat > $TMPC
1163 log_file $TMPC
1164 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1165 }
1166
1167 check_host_cpp(){
1168 log check_host_cpp "$@"
1169 cat > $TMPC
1170 log_file $TMPC
1171 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1172 }
1173
1174 check_host_cppflags(){
1175 log check_host_cppflags "$@"
1176 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1177 #include <stdlib.h>;
1178 EOF
1179 }
1180
1181 check_host_cflags(){
1182 log check_host_cflags "$@"
1183 set -- $($host_cflags_filter "$@")
1184 check_host_cc "$@" <<EOF && append host_cflags "$@"
1185 int x;
1186 EOF
1187 }
1188
1189 check_host_cpp_condition(){
1190 log check_host_cpp_condition "$@"
1191 header=$1
1192 condition=$2
1193 shift 2
1194 check_host_cpp "$@" <<EOF
1195 #include <$header>
1196 #if !($condition)
1197 #error "unsatisfied condition: $condition"
1198 #endif
1199 EOF
1200 }
1201
1202 apply(){
1203 file=$1
1204 shift
1205 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1206 }
1207
1208 cp_if_changed(){
1209 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1210 mkdir -p "$(dirname $2)"
1211 cp -f "$1" "$2"
1212 }
1213
1214 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1215 # system-dependent things.
1216
1217 AVCODEC_COMPONENTS="
1218 bsfs
1219 decoders
1220 encoders
1221 hwaccels
1222 parsers
1223 "
1224
1225 AVDEVICE_COMPONENTS="
1226 indevs
1227 outdevs
1228 "
1229 AVFILTER_COMPONENTS="
1230 filters
1231 "
1232 AVFORMAT_COMPONENTS="
1233 demuxers
1234 muxers
1235 protocols
1236 "
1237
1238 AVRESAMPLE_COMPONENTS=""
1239 AVUTIL_COMPONENTS=""
1240
1241 COMPONENT_LIST="
1242 $AVCODEC_COMPONENTS
1243 $AVDEVICE_COMPONENTS
1244 $AVFILTER_COMPONENTS
1245 $AVFORMAT_COMPONENTS
1246 $AVRESAMPLE_COMPONENTS
1247 $AVUTIL_COMPONENTS
1248 "
1249
1250 EXAMPLE_LIST="
1251 decode_audio_example
1252 decode_video_example
1253 encode_audio_example
1254 encode_video_example
1255 filter_audio_example
1256 metadata_example
1257 output_example
1258 qsvdec_example
1259 transcode_aac_example
1260 "
1261
1262 # catchall list of things that require external libs to link
1263 EXTRALIBS_LIST="
1264 cpu_init
1265 cws2fws
1266 "
1267
1268 HWACCEL_LIBRARY_NONFREE_LIST="
1269 cuda
1270 cuvid
1271 libnpp
1272 "
1273 HWACCEL_LIBRARY_LIST="
1274 $HWACCEL_LIBRARY_NONFREE_LIST
1275 d3d11va
1276 dxva2
1277 libmfx
1278 mmal
1279 nvenc
1280 omx
1281 vaapi
1282 vda
1283 vdpau
1284 "
1285
1286 EXTERNAL_LIBRARY_GPL_LIST="
1287 libcdio
1288 libx264
1289 libx265
1290 libxavs
1291 libxvid
1292 "
1293
1294 EXTERNAL_LIBRARY_NONFREE_LIST="
1295 libfaac
1296 libfdk_aac
1297 openssl
1298 "
1299
1300 EXTERNAL_LIBRARY_VERSION3_LIST="
1301 libopencore_amrnb
1302 libopencore_amrwb
1303 libvo_aacenc
1304 libvo_amrwbenc
1305 "
1306
1307 EXTERNAL_LIBRARY_LIST="
1308 $EXTERNAL_LIBRARY_GPL_LIST
1309 $EXTERNAL_LIBRARY_NONFREE_LIST
1310 $EXTERNAL_LIBRARY_VERSION3_LIST
1311 avisynth
1312 avxsynth
1313 frei0r
1314 gnutls
1315 libbs2b
1316 libdc1394
1317 libdcadec
1318 libfontconfig
1319 libfreetype
1320 libgsm
1321 libhdcd
1322 libilbc
1323 libjack
1324 libkvazaar
1325 libmp3lame
1326 libopencv
1327 libopenh264
1328 libopenjpeg
1329 libopus
1330 libpulse
1331 librtmp
1332 libschroedinger
1333 libsnappy
1334 libspeex
1335 libtheora
1336 libtwolame
1337 libvorbis
1338 libvpx
1339 libwavpack
1340 libwebp
1341 libxcb
1342 libxcb_shm
1343 libxcb_xfixes
1344 "
1345
1346 SYSTEM_LIBRARY_LIST="
1347 bzlib
1348 zlib
1349 "
1350
1351 FEATURE_LIST="
1352 gray
1353 hardcoded_tables
1354 omx_rpi
1355 runtime_cpudetect
1356 safe_bitstream_reader
1357 shared
1358 small
1359 sram
1360 static
1361 swscale_alpha
1362 "
1363
1364 LIBRARY_LIST="
1365 avcodec
1366 avdevice
1367 avfilter
1368 avformat
1369 avresample
1370 avutil
1371 swscale
1372 "
1373
1374 LICENSE_LIST="
1375 gpl
1376 nonfree
1377 version3
1378 "
1379
1380 PROGRAM_LIST="
1381 avconv
1382 avplay
1383 avprobe
1384 "
1385
1386 SUBSYSTEM_LIST="
1387 dct
1388 doc
1389 error_resilience
1390 faan
1391 fft
1392 lsp
1393 lzo
1394 mdct
1395 network
1396 rdft
1397 "
1398
1399 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1400 CONFIG_LIST="
1401 $EXAMPLE_LIST
1402 $EXTERNAL_LIBRARY_LIST
1403 $HWACCEL_LIBRARY_LIST
1404 $FEATURE_LIST
1405 $LICENSE_LIST
1406 $LIBRARY_LIST
1407 $PROGRAM_LIST
1408 $SUBSYSTEM_LIST
1409 $SYSTEM_LIBRARY_LIST
1410 neon_clobber_test
1411 pic
1412 pod2man
1413 texi2html
1414 thumb
1415 valgrind_backtrace
1416 xmm_clobber_test
1417 $COMPONENT_LIST
1418 "
1419
1420 THREADS_LIST="
1421 pthreads
1422 w32threads
1423 "
1424
1425 ATOMICS_LIST="
1426 atomics_gcc
1427 atomics_suncc
1428 atomics_win32
1429 "
1430
1431 ARCH_LIST="
1432 aarch64
1433 alpha
1434 arm
1435 avr32
1436 avr32_ap
1437 avr32_uc
1438 bfin
1439 ia64
1440 m68k
1441 mips
1442 mips64
1443 parisc
1444 ppc
1445 ppc64
1446 s390
1447 sh4
1448 sparc
1449 sparc64
1450 tilegx
1451 tilepro
1452 tomi
1453 x86
1454 x86_32
1455 x86_64
1456 "
1457
1458 ARCH_EXT_LIST_ARM="
1459 armv5te
1460 armv6
1461 armv6t2
1462 armv8
1463 neon
1464 vfp
1465 vfpv3
1466 "
1467
1468 ARCH_EXT_LIST_X86_SIMD="
1469 amd3dnow
1470 amd3dnowext
1471 avx
1472 avx2
1473 fma3
1474 fma4
1475 mmx
1476 mmxext
1477 sse
1478 sse2
1479 sse3
1480 sse4
1481 sse42
1482 ssse3
1483 xop
1484 "
1485
1486 ARCH_EXT_LIST_PPC="
1487 altivec
1488 dcbzl
1489 ldbrx
1490 power8
1491 ppc4xx
1492 vsx
1493 "
1494
1495 ARCH_EXT_LIST_X86="
1496 $ARCH_EXT_LIST_X86_SIMD
1497 cpunop
1498 i686
1499 "
1500
1501 ARCH_EXT_LIST_MIPS="
1502 loongson
1503 mips32r1
1504 mips64r1
1505 mips32r2
1506 mips64r2
1507 mips32r6
1508 mips64r6
1509 "
1510
1511 ARCH_EXT_LIST="
1512 $ARCH_EXT_LIST_ARM
1513 $ARCH_EXT_LIST_MIPS
1514 $ARCH_EXT_LIST_PPC
1515 $ARCH_EXT_LIST_X86
1516 vis
1517 "
1518
1519 ARCH_FEATURES="
1520 aligned_stack
1521 fast_64bit
1522 fast_clz
1523 fast_cmov
1524 local_aligned_8
1525 local_aligned_16
1526 local_aligned_32
1527 simd_align_16
1528 simd_align_32
1529 "
1530
1531 BUILTIN_LIST="
1532 atomic_cas_ptr
1533 machine_rw_barrier
1534 MemoryBarrier
1535 mm_empty
1536 rdtsc
1537 sem_timedwait
1538 sync_val_compare_and_swap
1539 "
1540 HAVE_LIST_CMDLINE="
1541 inline_asm
1542 symver
1543 x86asm
1544 "
1545
1546 HAVE_LIST_PUB="
1547 bigendian
1548 fast_unaligned
1549 "
1550
1551 HEADERS_LIST="
1552 AVFoundation_AVFoundation_h
1553 alsa_asoundlib_h
1554 arpa_inet_h
1555 cdio_paranoia_h
1556 cdio_paranoia_paranoia_h
1557 d3d11_h
1558 dispatch_dispatch_h
1559 dev_bktr_ioctl_bt848_h
1560 dev_bktr_ioctl_meteor_h
1561 dev_ic_bt8xx_h
1562 dev_video_bktr_ioctl_bt848_h
1563 dev_video_meteor_ioctl_meteor_h
1564 direct_h
1565 dlfcn_h
1566 dxgidebug_h
1567 dxva_h
1568 gsm_h
1569 io_h
1570 mach_mach_time_h
1571 machine_ioctl_bt848_h
1572 machine_ioctl_meteor_h
1573 malloc_h
1574 poll_h
1575 sndio_h
1576 soundcard_h
1577 stdatomic_h
1578 sys_mman_h
1579 sys_param_h
1580 sys_resource_h
1581 sys_select_h
1582 sys_soundcard_h
1583 sys_time_h
1584 sys_un_h
1585 sys_videoio_h
1586 unistd_h
1587 valgrind_valgrind_h
1588 windows_h
1589 winsock2_h
1590 "
1591
1592 INTRINSICS_LIST="
1593 intrinsics_neon
1594 "
1595
1596 MATH_FUNCS="
1597 atanf
1598 atan2f
1599 cbrtf
1600 cosf
1601 exp2
1602 exp2f
1603 expf
1604 isinf
1605 isnan
1606 ldexpf
1607 llrint
1608 llrintf
1609 log2
1610 log2f
1611 log10f
1612 lrint
1613 lrintf
1614 powf
1615 rint
1616 round
1617 roundf
1618 sinf
1619 trunc
1620 truncf
1621 "
1622
1623 SYSTEM_FUNCS="
1624 aligned_malloc
1625 clock_gettime
1626 closesocket
1627 CommandLineToArgvW
1628 CoTaskMemFree
1629 CryptGenRandom
1630 fcntl
1631 flt_lim
1632 fork
1633 getaddrinfo
1634 gethrtime
1635 getopt
1636 GetProcessAffinityMask
1637 GetProcessMemoryInfo
1638 GetProcessTimes
1639 getrusage
1640 GetSystemTimeAsFileTime
1641 gettimeofday
1642 gmtime_r
1643 inet_aton
1644 isatty
1645 LoadLibrary
1646 localtime_r
1647 mach_absolute_time
1648 MapViewOfFile
1649 memalign
1650 mkstemp
1651 mmap
1652 mprotect
1653 nanosleep
1654 posix_memalign
1655 sched_getaffinity
1656 SetConsoleTextAttribute
1657 setmode
1658 setrlimit
1659 Sleep
1660 strerror_r
1661 sysconf
1662 sysctl
1663 usleep
1664 VirtualAlloc
1665 "
1666
1667 TOOLCHAIN_FEATURES="
1668 as_arch_directive
1669 as_fpu_directive
1670 as_func
1671 as_object_arch
1672 asm_mod_q
1673 attribute_may_alias
1674 attribute_packed
1675 blocks_extension
1676 ebp_available
1677 ebx_available
1678 gnu_as
1679 ibm_asm
1680 inline_asm_labels
1681 pragma_deprecated
1682 symver_asm_label
1683 symver_gnu_asm
1684 vfp_args
1685 xform_asm
1686 xmm_clobbers
1687 "
1688
1689 TYPES_LIST="
1690 CONDITION_VARIABLE_Ptr
1691 CUVIDDECODECREATEINFO_bitDepthMinus8
1692 socklen_t
1693 struct_addrinfo
1694 struct_group_source_req
1695 struct_ip_mreq_source
1696 struct_ipv6_mreq
1697 struct_pollfd
1698 struct_rusage_ru_maxrss
1699 struct_sockaddr_in6
1700 struct_sockaddr_sa_len
1701 struct_sockaddr_storage
1702 struct_v4l2_frmivalenum_discrete
1703 "
1704
1705 HAVE_LIST="
1706 $ARCH_EXT_LIST
1707 $(add_suffix _external $ARCH_EXT_LIST)
1708 $(add_suffix _inline $ARCH_EXT_LIST)
1709 $ARCH_FEATURES
1710 $BUILTIN_LIST
1711 $HAVE_LIST_CMDLINE
1712 $HAVE_LIST_PUB
1713 $HEADERS_LIST
1714 $INTRINSICS_LIST
1715 $MATH_FUNCS
1716 $SYSTEM_FUNCS
1717 $THREADS_LIST
1718 $TOOLCHAIN_FEATURES
1719 $TYPES_LIST
1720 dos_paths
1721 libc_msvcrt
1722 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1723 sdl
1724 section_data_rel_ro
1725 threads
1726 uwp
1727 vaapi_drm
1728 vaapi_x11
1729 vdpau_x11
1730 "
1731
1732 # options emitted with CONFIG_ prefix but not available on the command line
1733 CONFIG_EXTRA="
1734 aandcttables
1735 ac3dsp
1736 adts_header
1737 audio_frame_queue
1738 audiodsp
1739 blockdsp
1740 bswapdsp
1741 cabac
1742 dirac_parse
1743 dvprofile
1744 faandct
1745 faanidct
1746 fdctdsp
1747 flacdsp
1748 fmtconvert
1749 g722dsp
1750 gmp
1751 golomb
1752 gplv3
1753 h263dsp
1754 h264chroma
1755 h264dsp
1756 h264parse
1757 h264pred
1758 h264qpel
1759 hevc_ps
1760 hpeldsp
1761 huffman
1762 huffyuvdsp
1763 huffyuvencdsp
1764 idctdsp
1765 iirfilter
1766 imdct15
1767 intrax8
1768 iso_media
1769 ividsp
1770 jpegtables
1771 lgplv3
1772 libx262
1773 libxcb_shape
1774 lpc
1775 lzf
1776 me_cmp
1777 mpeg_er
1778 mpegaudio
1779 mpegaudiodsp
1780 mpegaudioheader
1781 mpegvideo
1782 mpegvideoenc
1783 mss34dsp
1784 pixblockdsp
1785 qpeldsp
1786 qsv
1787 qsvdec
1788 qsvenc
1789 rangecoder
1790 riffdec
1791 riffenc
1792 rtpdec
1793 rtpenc_chain
1794 rv34dsp
1795 sinewin
1796 snappy
1797 srtp
1798 startcode
1799 texturedsp
1800 texturedspenc
1801 tpeldsp
1802 vaapi_encode
1803 vc1dsp
1804 videodsp
1805 vp3dsp
1806 vp56dsp
1807 vp8dsp
1808 wma_freqs
1809 wmv2dsp
1810 "
1811
1812 CMDLINE_SELECT="
1813 $ARCH_EXT_LIST
1814 $CONFIG_LIST
1815 $HAVE_LIST_CMDLINE
1816 $THREADS_LIST
1817 asm
1818 cross_compile
1819 debug
1820 extra_warnings
1821 logging
1822 lto
1823 optimizations
1824 rpath
1825 "
1826
1827 PATHS_LIST="
1828 bindir
1829 datadir
1830 docdir
1831 incdir
1832 libdir
1833 mandir
1834 prefix
1835 shlibdir
1836 "
1837
1838 CMDLINE_SET="
1839 $PATHS_LIST
1840 ar
1841 arch
1842 as
1843 cc
1844 objcc
1845 cpu
1846 cross_prefix
1847 custom_allocator
1848 dep_cc
1849 env
1850 extra_version
1851 host_cc
1852 host_cflags
1853 host_extralibs
1854 host_ld
1855 host_ldflags
1856 host_os
1857 ignore_tests
1858 ld
1859 logfile
1860 malloc_prefix
1861 nm
1862 optflags
1863 pkg_config
1864 pkg_config_flags
1865 random_seed
1866 samples
1867 sysinclude
1868 sysroot
1869 target_exec
1870 target_os
1871 target_path
1872 target_samples
1873 toolchain
1874 x86asmexe
1875 "
1876
1877 CMDLINE_APPEND="
1878 extra_cflags
1879 extra_objcflags
1880 host_cppflags
1881 "
1882
1883 # code dependency declarations
1884
1885 # architecture extensions
1886
1887 armv5te_deps="arm"
1888 armv6_deps="arm"
1889 armv6t2_deps="arm"
1890 armv8_deps="aarch64"
1891 neon_deps_any="aarch64 arm"
1892 intrinsics_neon_deps="neon"
1893 vfp_deps_any="aarch64 arm"
1894 vfpv3_deps="vfp"
1895
1896 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1897
1898 altivec_deps="ppc"
1899 dcbzl_deps="ppc"
1900 ldbrx_deps="ppc"
1901 ppc4xx_deps="ppc"
1902 vsx_deps="altivec"
1903 power8_deps="vsx"
1904
1905 loongson_deps="mips"
1906 mips32r1_deps="mips32"
1907 mips32r2_deps="mips32"
1908 mips32r6_deps="mips32"
1909 mips64r1_deps="mips64"
1910 mips64r2_deps="mips64"
1911 mips64r6_deps="mips64"
1912
1913 vis_deps="sparc"
1914
1915 cpunop_deps="i686"
1916 x86_64_select="i686"
1917 x86_64_suggest="fast_cmov"
1918
1919 amd3dnow_deps="mmx"
1920 amd3dnowext_deps="amd3dnow"
1921 i686_deps="x86"
1922 mmx_deps="x86"
1923 mmxext_deps="mmx"
1924 sse_deps="mmxext"
1925 sse2_deps="sse"
1926 sse3_deps="sse2"
1927 ssse3_deps="sse3"
1928 sse4_deps="ssse3"
1929 sse42_deps="sse4"
1930 avx_deps="sse42"
1931 xop_deps="avx"
1932 fma3_deps="avx"
1933 fma4_deps="avx"
1934 avx2_deps="avx"
1935
1936 mmx_external_deps="x86asm"
1937 mmx_inline_deps="inline_asm x86"
1938 mmx_suggest="mmx_external mmx_inline"
1939
1940 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1941 eval dep=\$${ext}_deps
1942 eval ${ext}_external_deps='"${dep}_external"'
1943 eval ${ext}_inline_deps='"${dep}_inline"'
1944 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1945 done
1946
1947 aligned_stack_if_any="aarch64 ppc x86"
1948 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1949 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1950 fast_unaligned_if_any="aarch64 ppc x86"
1951 simd_align_16_if_any="altivec neon sse"
1952 simd_align_32_if_any="avx"
1953
1954 # system capabilities
1955 symver_if_any="symver_asm_label symver_gnu_asm"
1956 valgrind_backtrace_conflict="optimizations"
1957 valgrind_backtrace_deps="valgrind_valgrind_h"
1958
1959 # threading support
1960 atomics_gcc_if="sync_val_compare_and_swap"
1961 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1962 atomics_win32_if="MemoryBarrier"
1963 atomics_native_if_any="$ATOMICS_LIST"
1964 w32threads_deps="atomics_native"
1965 threads_if_any="$THREADS_LIST"
1966
1967 # subsystems
1968 dct_select="rdft"
1969 dirac_parse_select="golomb"
1970 error_resilience_select="me_cmp"
1971 faandct_deps="faan"
1972 faandct_select="fdctdsp"
1973 faanidct_deps="faan"
1974 faanidct_select="idctdsp"
1975 h264dsp_select="startcode"
1976 hevc_ps_select="golomb"
1977 intrax8_select="blockdsp idctdsp"
1978 mdct_select="fft"
1979 rdft_select="fft"
1980 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1981 mpeg_er_select="error_resilience"
1982 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1983 mpegaudiodsp_select="dct"
1984 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1985 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1986 vc1dsp_select="h264chroma qpeldsp startcode"
1987
1988 # decoders / encoders
1989 aac_decoder_select="adts_header imdct15 mdct sinewin"
1990 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1991 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1992 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1993 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1994 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1995 adpcm_g722_decoder_select="g722dsp"
1996 adpcm_g722_encoder_select="g722dsp"
1997 aic_decoder_select="golomb idctdsp"
1998 alac_encoder_select="lpc"
1999 als_decoder_select="bswapdsp"
2000 amrnb_decoder_select="lsp"
2001 amrwb_decoder_select="lsp"
2002 amv_decoder_select="sp5x_decoder"
2003 ape_decoder_select="bswapdsp"
2004 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2005 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2006 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2007 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2008 atrac1_decoder_select="mdct sinewin"
2009 atrac3_decoder_select="mdct"
2010 atrac3p_decoder_select="mdct sinewin"
2011 bink_decoder_select="blockdsp hpeldsp"
2012 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2013 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2014 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2015 clearvideo_decoder_select="idctdsp"
2016 cllc_decoder_select="bswapdsp"
2017 comfortnoise_encoder_select="lpc"
2018 cook_decoder_select="audiodsp mdct sinewin"
2019 cscd_decoder_select="lzo"
2020 cscd_decoder_suggest="zlib"
2021 dca_decoder_select="fmtconvert mdct"
2022 dds_decoder_select="texturedsp"
2023 dnxhd_decoder_select="blockdsp idctdsp"
2024 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2025 dvvideo_decoder_select="dvprofile idctdsp"
2026 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2027 dxa_decoder_deps="zlib"
2028 dxv_decoder_select="lzf texturedsp"
2029 eac3_decoder_select="ac3_decoder"
2030 eac3_encoder_select="ac3_encoder"
2031 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2032 eatgq_decoder_select="aandcttables idctdsp"
2033 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2034 exr_decoder_deps="zlib"
2035 ffv1_decoder_select="rangecoder"
2036 ffv1_encoder_select="rangecoder"
2037 ffvhuff_decoder_select="huffyuv_decoder"
2038 ffvhuff_encoder_select="huffyuv_encoder"
2039 fic_decoder_select="golomb"
2040 flac_decoder_select="flacdsp"
2041 flac_encoder_select="bswapdsp flacdsp lpc"
2042 flashsv_decoder_deps="zlib"
2043 flashsv_encoder_deps="zlib"
2044 flashsv2_decoder_deps="zlib"
2045 flv_decoder_select="h263_decoder"
2046 flv_encoder_select="h263_encoder"
2047 fourxm_decoder_select="blockdsp bswapdsp"
2048 fraps_decoder_select="bswapdsp huffman"
2049 g2m_decoder_deps="zlib"
2050 g2m_decoder_select="blockdsp idctdsp jpegtables"
2051 h261_decoder_select="mpeg_er mpegvideo"
2052 h261_encoder_select="aandcttables mpegvideoenc"
2053 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2054 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2055 h263i_decoder_select="h263_decoder"
2056 h263p_encoder_select="h263_encoder"
2057 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2058 h264_decoder_suggest="error_resilience"
2059 hap_decoder_select="snappy texturedsp"
2060 hap_encoder_deps="libsnappy"
2061 hap_encoder_select="texturedspenc"
2062 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2063 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2064 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2065 iac_decoder_select="imc_decoder"
2066 imc_decoder_select="bswapdsp fft mdct sinewin"
2067 indeo3_decoder_select="hpeldsp"
2068 indeo4_decoder_select="ividsp"
2069 indeo5_decoder_select="ividsp"
2070 interplay_video_decoder_select="hpeldsp"
2071 jpegls_decoder_select="mjpeg_decoder"
2072 jv_decoder_select="blockdsp"
2073 lagarith_decoder_select="huffyuvdsp"
2074 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2075 magicyuv_decoder_select="huffyuvdsp"
2076 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2077 metasound_decoder_select="lsp mdct sinewin"
2078 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2079 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2080 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2081 mjpegb_decoder_select="mjpeg_decoder"
2082 mlp_decoder_select="mlp_parser"
2083 motionpixels_decoder_select="bswapdsp"
2084 mp1_decoder_select="mpegaudio"
2085 mp1float_decoder_select="mpegaudio"
2086 mp2_decoder_select="mpegaudio"
2087 mp2float_decoder_select="mpegaudio"
2088 mp3_decoder_select="mpegaudio"
2089 mp3adu_decoder_select="mpegaudio"
2090 mp3adufloat_decoder_select="mpegaudio"
2091 mp3float_decoder_select="mpegaudio"
2092 mp3on4_decoder_select="mpegaudio"
2093 mp3on4float_decoder_select="mpegaudio"
2094 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2095 mpc8_decoder_select="mpegaudiodsp"
2096 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2097 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2098 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2099 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2100 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2101 mpeg4_encoder_select="h263_encoder"
2102 msa1_decoder_select="mss34dsp"
2103 msmpeg4v1_decoder_select="h263_decoder"
2104 msmpeg4v2_decoder_select="h263_decoder"
2105 msmpeg4v2_encoder_select="h263_encoder"
2106 msmpeg4v3_decoder_select="h263_decoder"
2107 msmpeg4v3_encoder_select="h263_encoder"
2108 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2109 mts2_decoder_select="mss34dsp"
2110 mxpeg_decoder_select="mjpeg_decoder"
2111 nellymoser_decoder_select="mdct sinewin"
2112 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2113 nuv_decoder_select="idctdsp lzo"
2114 on2avc_decoder_select="mdct"
2115 opus_decoder_deps="avresample"
2116 opus_decoder_select="imdct15"
2117 png_decoder_deps="zlib"
2118 png_encoder_deps="zlib"
2119 png_encoder_select="huffyuvencdsp"
2120 prores_decoder_select="idctdsp"
2121 prores_encoder_select="fdctdsp"
2122 qcelp_decoder_select="lsp"
2123 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2124 ra_144_encoder_select="audio_frame_queue lpc"
2125 ralf_decoder_select="golomb"
2126 rscc_decoder_deps="zlib"
2127 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2128 rv10_encoder_select="h263_encoder"
2129 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2130 rv20_encoder_select="h263_encoder"
2131 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2132 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2133 screenpresso_decoder_deps="zlib"
2134 sipr_decoder_select="lsp"
2135 sp5x_decoder_select="mjpeg_decoder"
2136 svq1_decoder_select="hpeldsp"
2137 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2138 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2139 svq3_decoder_suggest="zlib"
2140 tak_decoder_select="audiodsp"
2141 tdsc_decoder_deps="zlib"
2142 tdsc_decoder_select="mjpeg_decoder"
2143 theora_decoder_select="vp3_decoder"
2144 thp_decoder_select="mjpeg_decoder"
2145 tiff_decoder_suggest="zlib"
2146 tiff_encoder_suggest="zlib"
2147 truehd_decoder_select="mlp_decoder"
2148 truemotion2_decoder_select="bswapdsp"
2149 truespeech_decoder_select="bswapdsp"
2150 tscc_decoder_deps="zlib"
2151 txd_decoder_select="texturedsp"
2152 twinvq_decoder_select="mdct lsp sinewin"
2153 utvideo_decoder_select="bswapdsp huffyuvdsp"
2154 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2155 vble_decoder_select="huffyuvdsp"
2156 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2157 vc1image_decoder_select="vc1_decoder"
2158 vorbis_decoder_select="mdct"
2159 vorbis_encoder_select="mdct"
2160 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2161 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2162 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2163 vp6a_decoder_select="vp6_decoder"
2164 vp6f_decoder_select="vp6_decoder"
2165 vp7_decoder_select="h264pred videodsp vp8dsp"
2166 vp8_decoder_select="h264pred videodsp vp8dsp"
2167 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2168 webp_decoder_select="vp8_decoder"
2169 wmapro_decoder_select="mdct sinewin wma_freqs"
2170 wmav1_decoder_select="mdct sinewin wma_freqs"
2171 wmav1_encoder_select="mdct sinewin wma_freqs"
2172 wmav2_decoder_select="mdct sinewin wma_freqs"
2173 wmav2_encoder_select="mdct sinewin wma_freqs"
2174 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2175 wmv1_decoder_select="h263_decoder"
2176 wmv1_encoder_select="h263_encoder"
2177 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2178 wmv2_encoder_select="h263_encoder wmv2dsp"
2179 wmv3_decoder_select="vc1_decoder"
2180 wmv3image_decoder_select="wmv3_decoder"
2181 zerocodec_decoder_deps="zlib"
2182 zlib_decoder_deps="zlib"
2183 zlib_encoder_deps="zlib"
2184 zmbv_decoder_deps="zlib"
2185 zmbv_encoder_deps="zlib"
2186
2187 # hardware accelerators
2188 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2189 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2190 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2191 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2192
2193 h263_vaapi_hwaccel_deps="vaapi"
2194 h263_vaapi_hwaccel_select="h263_decoder"
2195 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2196 h264_cuvid_hwaccel_select="h264_decoder"
2197 h264_d3d11va_hwaccel_deps="d3d11va"
2198 h264_d3d11va_hwaccel_select="h264_decoder"
2199 h264_d3d11va2_hwaccel_deps="d3d11va"
2200 h264_d3d11va2_hwaccel_select="h264_decoder"
2201 h264_dxva2_hwaccel_deps="dxva2"
2202 h264_dxva2_hwaccel_select="h264_decoder"
2203 h264_mmal_hwaccel_deps="mmal"
2204 h264_qsv_hwaccel_deps="libmfx"
2205 h264_vaapi_hwaccel_deps="vaapi"
2206 h264_vaapi_hwaccel_select="h264_decoder"
2207 h264_vda_hwaccel_deps="vda"
2208 h264_vda_hwaccel_select="h264_decoder"
2209 h264_vda_old_hwaccel_deps="vda"
2210 h264_vda_old_hwaccel_select="h264_decoder"
2211 h264_vdpau_hwaccel_deps="vdpau"
2212 h264_vdpau_hwaccel_select="h264_decoder"
2213 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2214 hevc_d3d11va_hwaccel_select="hevc_decoder"
2215 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2216 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2217 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2218 hevc_dxva2_hwaccel_select="hevc_decoder"
2219 hevc_qsv_hwaccel_deps="libmfx"
2220 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2221 hevc_vaapi_hwaccel_select="hevc_decoder"
2222 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2223 hevc_vdpau_hwaccel_select="hevc_decoder"
2224 mpeg1_vdpau_hwaccel_deps="vdpau"
2225 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2226 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2227 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2228 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2229 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2230 mpeg2_dxva2_hwaccel_deps="dxva2"
2231 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2232 mpeg2_mmal_hwaccel_deps="mmal"
2233 mpeg2_qsv_hwaccel_deps="libmfx"
2234 mpeg2_vaapi_hwaccel_deps="vaapi"
2235 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2236 mpeg2_vdpau_hwaccel_deps="vdpau"
2237 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2238 mpeg4_vaapi_hwaccel_deps="vaapi"
2239 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2240 mpeg4_vdpau_hwaccel_deps="vdpau"
2241 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2242 vc1_d3d11va_hwaccel_deps="d3d11va"
2243 vc1_d3d11va_hwaccel_select="vc1_decoder"
2244 vc1_d3d11va2_hwaccel_deps="d3d11va"
2245 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2246 vc1_dxva2_hwaccel_deps="dxva2"
2247 vc1_dxva2_hwaccel_select="vc1_decoder"
2248 vc1_mmal_hwaccel_deps="mmal"
2249 vc1_qsv_hwaccel_deps="libmfx"
2250 vc1_vaapi_hwaccel_deps="vaapi"
2251 vc1_vaapi_hwaccel_select="vc1_decoder"
2252 vc1_vdpau_hwaccel_deps="vdpau"
2253 vc1_vdpau_hwaccel_select="vc1_decoder"
2254 vp8_qsv_hwaccel_deps="libmfx"
2255 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2256 vp8_vaapi_hwaccel_select="vp8_decoder"
2257 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2258 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2259 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2260 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2261 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2262
2263 # hardware-accelerated codecs
2264 nvenc_deps_any="libdl LoadLibrary"
2265 omx_deps="libdl pthreads"
2266 omx_rpi_select="omx"
2267 qsv_deps="libmfx"
2268 qsvdec_select="qsv"
2269 qsvenc_select="qsv"
2270 vaapi_encode_deps="vaapi"
2271
2272 hwupload_cuda_filter_deps="cuda"
2273 scale_npp_filter_deps="cuda libnpp"
2274
2275 h264_mmal_decoder_deps="mmal"
2276 h264_nvenc_encoder_deps="nvenc"
2277 h264_omx_encoder_deps="omx"
2278 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2279 h264_qsv_encoder_select="qsvenc"
2280 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2281 h264_vaapi_encoder_select="vaapi_encode golomb"
2282 hevc_nvenc_encoder_deps="nvenc"
2283 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2284 hevc_qsv_encoder_select="hevc_ps qsvenc"
2285 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2286 hevc_vaapi_encoder_select="vaapi_encode golomb"
2287 mjpeg_qsv_encoder_deps="libmfx"
2288 mjpeg_qsv_encoder_select="qsvenc"
2289 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2290 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2291 mpeg2_mmal_decoder_deps="mmal"
2292 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2293 mpeg2_qsv_encoder_select="qsvenc"
2294 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2295 mpeg2_vaapi_encoder_select="vaapi_encode"
2296 mpeg4_omx_encoder_deps="omx"
2297 vc1_mmal_decoder_deps="mmal"
2298 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2299 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2300 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2301 vp8_vaapi_encoder_select="vaapi_encode"
2302 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2303 vp9_vaapi_encoder_select="vaapi_encode"
2304
2305 nvenc_h264_encoder_select="h264_nvenc_encoder"
2306 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2307
2308 # parsers
2309 aac_parser_select="adts_header"
2310 h264_parser_select="golomb h264dsp h264parse"
2311 hevc_parser_select="hevc_ps"
2312 mpegaudio_parser_select="mpegaudioheader"
2313 mpegvideo_parser_select="mpegvideo"
2314 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2315 vc1_parser_select="vc1dsp"
2316
2317 # bitstream_filters
2318 aac_adtstoasc_bsf_select="adts_header"
2319 mjpeg2jpeg_bsf_select="jpegtables"
2320
2321 # external libraries
2322 avisynth_deps="LoadLibrary"
2323 avxsynth_deps="libdl"
2324 avisynth_demuxer_deps_any="avisynth avxsynth"
2325 avisynth_demuxer_select="riffdec"
2326 libdcadec_decoder_deps="libdcadec"
2327 libfaac_encoder_deps="libfaac"
2328 libfaac_encoder_select="audio_frame_queue"
2329 libfdk_aac_decoder_deps="libfdk_aac"
2330 libfdk_aac_encoder_deps="libfdk_aac"
2331 libfdk_aac_encoder_select="audio_frame_queue"
2332 libgsm_decoder_deps="libgsm"
2333 libgsm_encoder_deps="libgsm"
2334 libgsm_ms_decoder_deps="libgsm"
2335 libgsm_ms_encoder_deps="libgsm"
2336 libilbc_decoder_deps="libilbc"
2337 libilbc_encoder_deps="libilbc"
2338 libkvazaar_encoder_deps="libkvazaar"
2339 libmp3lame_encoder_deps="libmp3lame"
2340 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2341 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2342 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2343 libopencore_amrnb_encoder_select="audio_frame_queue"
2344 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2345 libopenh264_decoder_deps="libopenh264"
2346 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2347 libopenh264_encoder_deps="libopenh264"
2348 libopenjpeg_decoder_deps="libopenjpeg"
2349 libopenjpeg_encoder_deps="libopenjpeg"
2350 libopus_decoder_deps="libopus"
2351 libopus_encoder_deps="libopus"
2352 libopus_encoder_select="audio_frame_queue"
2353 libschroedinger_decoder_deps="libschroedinger"
2354 libschroedinger_encoder_deps="libschroedinger"
2355 libspeex_decoder_deps="libspeex"
2356 libspeex_encoder_deps="libspeex"
2357 libspeex_encoder_select="audio_frame_queue"
2358 libtheora_encoder_deps="libtheora"
2359 libtwolame_encoder_deps="libtwolame"
2360 libvo_aacenc_encoder_deps="libvo_aacenc"
2361 libvo_aacenc_encoder_select="audio_frame_queue"
2362 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2363 libvorbis_encoder_deps="libvorbis"
2364 libvorbis_encoder_select="audio_frame_queue"
2365 libvpx_vp8_decoder_deps="libvpx"
2366 libvpx_vp8_encoder_deps="libvpx"
2367 libvpx_vp9_decoder_deps="libvpx"
2368 libvpx_vp9_encoder_deps="libvpx"
2369 libwavpack_encoder_deps="libwavpack"
2370 libwavpack_encoder_select="audio_frame_queue"
2371 libwebp_encoder_deps="libwebp"
2372 libx262_encoder_deps="libx262"
2373 libx264_encoder_deps="libx264"
2374 libx265_encoder_deps="libx265"
2375 libxavs_encoder_deps="libxavs"
2376 libxvid_encoder_deps="libxvid mkstemp"
2377
2378 # demuxers / muxers
2379 ac3_demuxer_select="ac3_parser"
2380 asf_demuxer_select="riffdec"
2381 asf_muxer_select="riffenc"
2382 asf_stream_muxer_select="asf_muxer"
2383 avi_demuxer_select="iso_media riffdec"
2384 avi_muxer_select="riffenc"
2385 caf_demuxer_select="iso_media riffdec"
2386 dash_muxer_select="mp4_muxer"
2387 dirac_demuxer_select="dirac_parser"
2388 dv_demuxer_select="dvprofile"
2389 dv_muxer_select="dvprofile"
2390 dxa_demuxer_select="riffdec"
2391 eac3_demuxer_select="ac3_parser"
2392 f4v_muxer_select="mov_muxer"
2393 flac_demuxer_select="flac_parser"
2394 hds_muxer_select="flv_muxer"
2395 hls_muxer_select="mpegts_muxer"
2396 ipod_muxer_select="mov_muxer"
2397 ismv_muxer_select="mov_muxer"
2398 matroska_audio_muxer_select="matroska_muxer"
2399 matroska_demuxer_select="iso_media riffdec"
2400 matroska_demuxer_suggest="bzlib lzo zlib"
2401 matroska_muxer_select="iso_media riffenc"
2402 mmf_muxer_select="riffenc"
2403 mov_demuxer_select="iso_media riffdec"
2404 mov_demuxer_suggest="zlib"
2405 mov_muxer_select="iso_media riffenc rtpenc_chain"
2406 mp3_demuxer_select="mpegaudio_parser"
2407 mp3_muxer_select="mpegaudioheader"
2408 mp4_muxer_select="mov_muxer"
2409 mpegts_demuxer_select="iso_media"
2410 mpegts_muxer_select="adts_muxer latm_muxer"
2411 mpegtsraw_demuxer_select="mpegts_demuxer"
2412 mxf_d10_muxer_select="mxf_muxer"
2413 nut_muxer_select="riffenc"
2414 nuv_demuxer_select="riffdec"
2415 oga_muxer_select="ogg_muxer"
2416 ogg_demuxer_select="dirac_parse"
2417 opus_muxer_select="ogg_muxer"
2418 psp_muxer_select="mov_muxer"
2419 rtp_demuxer_select="sdp_demuxer"
2420 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2421 rtsp_demuxer_select="http_protocol rtpdec"
2422 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2423 sap_demuxer_select="sdp_demuxer"
2424 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2425 sdp_demuxer_select="rtpdec"
2426 smoothstreaming_muxer_select="ismv_muxer"
2427 spdif_demuxer_select="adts_header"
2428 spdif_muxer_select="adts_header"
2429 spx_muxer_select="ogg_muxer"
2430 swf_demuxer_suggest="zlib"
2431 tak_demuxer_select="tak_parser"
2432 tg2_muxer_select="mov_muxer"
2433 tgp_muxer_select="mov_muxer"
2434 w64_demuxer_select="wav_demuxer"
2435 wav_demuxer_select="riffdec"
2436 wav_muxer_select="riffenc"
2437 webm_muxer_select="iso_media riffenc"
2438 wtv_demuxer_select="mpegts_demuxer riffdec"
2439 xmv_demuxer_select="riffdec"
2440 xwma_demuxer_select="riffdec"
2441
2442 # indevs / outdevs
2443 alsa_indev_deps="alsa"
2444 alsa_outdev_deps="alsa"
2445 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2446 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2447 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2448 dv1394_indev_deps="dv1394"
2449 dv1394_indev_select="dv_demuxer"
2450 fbdev_indev_deps="linux_fb_h"
2451 jack_indev_deps="libjack"
2452 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2453 libcdio_indev_deps="libcdio"
2454 libdc1394_indev_deps="libdc1394"
2455 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2456 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2457 pulse_indev_deps="libpulse"
2458 sndio_indev_deps="sndio"
2459 sndio_outdev_deps="sndio"
2460 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2461 vfwcap_indev_deps="vfw32 vfwcap_defines"
2462 xcbgrab_indev_deps="libxcb libxcb_shape"
2463 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2464
2465 # protocols
2466 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2467 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2468 ffrtmpcrypt_protocol_select="tcp_protocol"
2469 ffrtmphttp_protocol_conflict="librtmp_protocol"
2470 ffrtmphttp_protocol_select="http_protocol"
2471 gopher_protocol_select="network"
2472 http_protocol_select="tcp_protocol"
2473 http_protocol_suggest="zlib"
2474 httpproxy_protocol_select="tcp_protocol"
2475 httpproxy_protocol_suggest="zlib"
2476 https_protocol_select="tls_protocol"
2477 https_protocol_suggest="zlib"
2478 icecast_protocol_select="http_protocol"
2479 librtmp_protocol_deps="librtmp"
2480 librtmpe_protocol_deps="librtmp"
2481 librtmps_protocol_deps="librtmp"
2482 librtmpt_protocol_deps="librtmp"
2483 librtmpte_protocol_deps="librtmp"
2484 mmsh_protocol_select="http_protocol"
2485 mmst_protocol_select="network"
2486 rtmp_protocol_conflict="librtmp_protocol"
2487 rtmp_protocol_select="tcp_protocol"
2488 rtmp_protocol_suggest="zlib"
2489 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2490 rtmpe_protocol_suggest="zlib"
2491 rtmps_protocol_conflict="librtmp_protocol"
2492 rtmps_protocol_select="tls_protocol"
2493 rtmps_protocol_suggest="zlib"
2494 rtmpt_protocol_select="ffrtmphttp_protocol"
2495 rtmpt_protocol_suggest="zlib"
2496 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2497 rtmpte_protocol_suggest="zlib"
2498 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2499 rtmpts_protocol_suggest="zlib"
2500 rtp_protocol_select="udp_protocol"
2501 sctp_protocol_deps="struct_sctp_event_subscribe"
2502 sctp_protocol_select="network"
2503 srtp_protocol_select="rtp_protocol srtp"
2504 tcp_protocol_select="network"
2505 tls_protocol_deps_any="gnutls openssl"
2506 tls_protocol_select="tcp_protocol"
2507 udp_protocol_select="network"
2508 unix_protocol_deps="sys_un_h"
2509 unix_protocol_select="network"
2510
2511 # filters
2512 asyncts_filter_deps="avresample"
2513 blackframe_filter_deps="gpl"
2514 boxblur_filter_deps="gpl"
2515 bs2b_filter_deps="libbs2b"
2516 cropdetect_filter_deps="gpl"
2517 deinterlace_qsv_filter_deps="libmfx"
2518 deinterlace_vaapi_filter_deps="vaapi"
2519 delogo_filter_deps="gpl"
2520 drawtext_filter_deps="libfreetype"
2521 drawtext_filter_suggest="libfontconfig"
2522 frei0r_filter_deps="frei0r libdl"
2523 frei0r_src_filter_deps="frei0r libdl"
2524 hdcd_filter_deps="libhdcd"
2525 hqdn3d_filter_deps="gpl"
2526 interlace_filter_deps="gpl"
2527 movie_filter_deps="avcodec avformat"
2528 ocv_filter_deps="libopencv"
2529 resample_filter_deps="avresample"
2530 scale_filter_deps="swscale"
2531 scale_qsv_filter_deps="libmfx"
2532 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2533
2534 # examples
2535 decode_audio_example_deps="avcodec avutil"
2536 decode_video_example_deps="avcodec avutil"
2537 encode_audio_example_deps="avcodec avutil"
2538 encode_video_example_deps="avcodec avutil"
2539 filter_audio_example_deps="avfilter avutil"
2540 metadata_example_deps="avformat avutil"
2541 output_example_deps="avcodec avformat avresample avutil swscale"
2542 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2543 transcode_aac_example_deps="avcodec avformat avresample"
2544
2545 # EXTRALIBS_LIST
2546 cpu_init_extralibs="pthreads_extralibs"
2547 cws2fws_extralibs="zlib_extralibs"
2548
2549 # libraries, in linking order
2550 avcodec_deps="avutil"
2551 avcodec_select="null_bsf"
2552 avdevice_deps="avformat avcodec avutil"
2553 avfilter_deps="avutil"
2554 avformat_deps="avcodec avutil"
2555 avformat_suggest="network"
2556 avresample_deps="avutil"
2557 swscale_deps="avutil"
2558
2559 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2560 avdevice_extralibs="libm_extralibs"
2561 avformat_extralibs="libm_extralibs"
2562 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2563 avresample_extralibs="libm_extralibs"
2564 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2565 swscale_extralibs="libm_extralibs"
2566
2567 # programs
2568 avconv_deps="avcodec avfilter avformat avresample swscale"
2569 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2570 fps_filter null_filter resample_filter scale_filter
2571 trim_filter"
2572 avconv_suggest="psapi shell32"
2573 avplay_deps="avcodec avfilter avformat avresample sdl"
2574 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2575 avplay_suggest="shell32"
2576 avprobe_deps="avcodec avformat"
2577 avprobe_suggest="shell32"
2578
2579 # documentation
2580 pod2man_deps="doc"
2581 texi2html_deps="doc"
2582
2583 # default parameters
2584
2585 logfile="avbuild/config.log"
2586
2587 # installation paths
2588 prefix_default="/usr/local"
2589 bindir_default='${prefix}/bin'
2590 datadir_default='${prefix}/share/avconv'
2591 docdir_default='${prefix}/share/doc/libav'
2592 incdir_default='${prefix}/include'
2593 libdir_default='${prefix}/lib'
2594 mandir_default='${prefix}/share/man'
2595 shlibdir_default="$libdir_default"
2596
2597 # toolchain
2598 ar_default="ar"
2599 cc_default="gcc"
2600 host_cc_default="gcc"
2601 x86asmexe_default="nasm"
2602 ln_s="ln -s -f"
2603 nm_default="nm -g"
2604 pkg_config_default=pkg-config
2605 ranlib="ranlib"
2606 strip="strip"
2607 version_script='--version-script'
2608
2609 # machine
2610 arch_default=$(uname -m)
2611 cpu="generic"
2612 intrinsics="none"
2613
2614 # OS
2615 target_os_default=$(tolower $(uname -s))
2616 host_os=$target_os_default
2617
2618 # configurable options
2619 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2620
2621 enable asm
2622 enable debug
2623 enable doc
2624 enable faan faandct faanidct
2625 enable optimizations
2626 enable safe_bitstream_reader
2627 enable static
2628 enable swscale_alpha
2629 enable valgrind_backtrace
2630
2631 # By default, enable only those hwaccels that have no external dependencies.
2632 enable d3d11va dxva2 vda vdpau
2633
2634 # internal components are enabled by default
2635 enable $EXTRALIBS_LIST
2636
2637 # Avoid external, non-system, libraries getting enabled by dependency resolution
2638 disable $EXTERNAL_LIBRARY_LIST
2639
2640 # build settings
2641 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2642 LIBPREF="lib"
2643 LIBSUF=".a"
2644 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2645 SLIBPREF="lib"
2646 SLIBSUF=".so"
2647 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2648 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2649 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2650 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2651 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2652 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2653 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2654
2655 asflags_filter=echo
2656 cflags_filter=echo
2657 ldflags_filter=echo
2658
2659 AS_C='-c'
2660 AS_O='-o $@'
2661 CC_C='-c'
2662 CC_E='-E -o $@'
2663 CC_O='-o $@'
2664 OBJCC_C='-c'
2665 OBJCC_E='-E -o $@'
2666 OBJCC_O='-o $@'
2667 X86ASM_O='-o $@'
2668 LD_O='-o $@'
2669 LD_LIB='-l%'
2670 LD_PATH='-L'
2671 HOSTCC_C='-c'
2672 HOSTCC_E='-E -o $@'
2673 HOSTCC_O='-o $@'
2674 HOSTLD_O='-o $@'
2675
2676 host_extralibs='-lm'
2677 host_cflags_filter=echo
2678 host_ldflags_filter=echo
2679
2680 target_path='$(CURDIR)'
2681
2682 # since the object filename is not given with the -MM flag, the compiler
2683 # is only able to print the basename, and we must add the path ourselves
2684 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2685 DEPFLAGS='-MM'
2686
2687 mkdir -p avbuild
2688
2689 # find source path
2690 if test -f configure; then
2691 source_path=.
2692 else
2693 source_path=$(cd $(dirname "$0"); pwd)
2694 echo "$source_path" | grep -q '[[:blank:]]' &&
2695 die "Out of tree builds are impossible with whitespace in source path."
2696 test -e "$source_path/config.h" &&
2697 die "Out of tree builds are impossible with config.h in source dir."
2698 fi
2699
2700 for v in "$@"; do
2701 r=${v#*=}
2702 l=${v%"$r"}
2703 r=$(sh_quote "$r")
2704 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2705 done
2706
2707 find_things(){
2708 thing=$1
2709 pattern=$2
2710 file=$source_path/$3
2711 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2712 }
2713
2714 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2715 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2716 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2717 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2718 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2719 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2720 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2721 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2722 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2723
2724 find_things_extern(){
2725 thing=$1
2726 pattern=$2
2727 file=$source_path/$3
2728 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2729 }
2730
2731 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2732 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2733
2734 AVCODEC_COMPONENTS_LIST="
2735 $BSF_LIST
2736 $DECODER_LIST
2737 $ENCODER_LIST
2738 $HWACCEL_LIST
2739 $PARSER_LIST
2740 "
2741
2742 AVDEVICE_COMPONENTS_LIST="
2743 $INDEV_LIST
2744 $OUTDEV_LIST
2745 "
2746
2747 AVFILTER_COMPONENTS_LIST="
2748 $FILTER_LIST
2749 "
2750
2751 AVFORMAT_COMPONENTS_LIST="
2752 $DEMUXER_LIST
2753 $MUXER_LIST
2754 $PROTOCOL_LIST
2755 "
2756
2757 ALL_COMPONENTS="
2758 $AVCODEC_COMPONENTS_LIST
2759 $AVDEVICE_COMPONENTS_LIST
2760 $AVFILTER_COMPONENTS_LIST
2761 $AVFORMAT_COMPONENTS_LIST
2762 "
2763
2764 for n in $COMPONENT_LIST; do
2765 v=$(toupper ${n%s})_LIST
2766 eval enable \$$v
2767 eval ${n}_if_any="\$$v"
2768 done
2769
2770 enable $ARCH_EXT_LIST
2771
2772 die_unknown(){
2773 echo "Unknown option \"$1\"."
2774 echo "See $0 --help for available options."
2775 exit 1
2776 }
2777
2778 print_3_columns() {
2779 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2780 }
2781
2782 show_list() {
2783 suffix=_$1
2784 shift
2785 echo $* | sed s/$suffix//g | print_3_columns
2786 exit 0
2787 }
2788
2789 rand_list(){
2790 IFS=', '
2791 set -- $*
2792 unset IFS
2793 for thing; do
2794 comp=${thing%:*}
2795 prob=${thing#$comp}
2796 prob=${prob#:}
2797 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2798 echo "prob ${prob:-0.5}"
2799 printf '%s\n' $comp
2800 done
2801 }
2802
2803 do_random(){
2804 action=$1
2805 shift
2806 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2807 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2808 }
2809
2810 for opt do
2811 optval="${opt#*=}"
2812 case "$opt" in
2813 --extra-ldflags=*)
2814 add_ldflags $optval
2815 ;;
2816 --extra-ldexeflags=*)
2817 add_ldexeflags $optval
2818 ;;
2819 --extra-ldsoflags=*)
2820 add_ldsoflags $optval
2821 ;;
2822 --extra-libs=*)
2823 add_extralibs $optval
2824 ;;
2825 --disable-devices)
2826 disable $INDEV_LIST $OUTDEV_LIST
2827 ;;
2828 --enable-debug=*)
2829 debuglevel="$optval"
2830 ;;
2831 --disable-programs)
2832 disable $PROGRAM_LIST
2833 ;;
2834 --disable-everything)
2835 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2836 ;;
2837 --disable-all)
2838 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2839 disable $LIBRARY_LIST $PROGRAM_LIST doc
2840 ;;
2841 --enable-random|--disable-random)
2842 action=${opt%%-random}
2843 do_random ${action#--} $COMPONENT_LIST
2844 ;;
2845 --enable-random=*|--disable-random=*)
2846 action=${opt%%-random=*}
2847 do_random ${action#--} $optval
2848 ;;
2849 --enable-*=*|--disable-*=*)
2850 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2851 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2852 eval list=\$$(toupper $thing)_LIST
2853 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2854 $action $(filter "$name" $list)
2855 ;;
2856 --enable-avserver|--disable-avserver*)
2857 warn "avserver has been removed, the ${opt} option is only"\
2858 "provided for compatibility and will be removed in the future"
2859 ;;
2860 --enable-yasm|--disable-yasm)
2861 warn "The ${opt} option is only provided for compatibility and will be\n"\
2862 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2863 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2864 ;;
2865 --enable-?*|--disable-?*)
2866 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2867 if is_in $option $COMPONENT_LIST; then
2868 test $action = disable && action=unset
2869 eval $action \$$(toupper ${option%s})_LIST
2870 elif is_in $option $CMDLINE_SELECT; then
2871 $action $option
2872 else
2873 die_unknown $opt
2874 fi
2875 ;;
2876 --list-*)
2877 NAME="${opt#--list-}"
2878 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2879 NAME=${NAME%s}
2880 eval show_list $NAME \$$(toupper $NAME)_LIST
2881 ;;
2882 --help|-h) show_help
2883 ;;
2884 --quiet|-q) quiet=yes
2885 ;;
2886 *)
2887 optname="${opt%%=*}"
2888 optname="${optname#--}"
2889 optname=$(echo "$optname" | sed 's/-/_/g')
2890 if is_in $optname $CMDLINE_SET; then
2891 eval $optname='$optval'
2892 elif is_in $optname $CMDLINE_APPEND; then
2893 append $optname "$optval"
2894 else
2895 die_unknown $opt
2896 fi
2897 ;;
2898 esac
2899 done
2900
2901 for e in $env; do
2902 eval "export $e"
2903 done
2904
2905 disabled logging && logfile=/dev/null
2906
2907 # Die early if licensing-related configure options are incompatible.
2908 die_license_disabled() {
2909 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2910 }
2911
2912 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2913 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2914 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2915
2916 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2917
2918 enabled_all gnutls openssl &&
2919 die "GnuTLS and OpenSSL must not be enabled at the same time."
2920
2921 # Disable all the library-specific components if the library itself
2922 # is disabled, see AVCODEC_LIST and following _LIST variables.
2923
2924 disable_components(){
2925 disabled ${1} && disable $(
2926 eval components="\$$(toupper ${1})_COMPONENTS"
2927 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2928 )
2929 }
2930
2931 map 'disable_components $v' $LIBRARY_LIST
2932
2933 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2934 set >> $logfile
2935
2936 case "$toolchain" in
2937 *-asan)
2938 cc_default="${toolchain%-asan}"
2939 add_cflags -fsanitize=address
2940 add_ldflags -fsanitize=address
2941 ;;
2942 *-msan)
2943 cc_default="${toolchain%-msan}"
2944 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2945 add_ldflags -fsanitize=memory
2946 ;;
2947 *-tsan)
2948 cc_default="${toolchain%-tsan}"
2949 add_cflags -fsanitize=thread -fPIE
2950 add_ldflags -fsanitize=thread -pie
2951 case "$toolchain" in
2952 gcc-tsan)
2953 add_cflags -fPIC
2954 add_ldflags -fPIC
2955 ;;
2956 esac
2957 ;;
2958 *-usan)
2959 cc_default="${toolchain%-usan}"
2960 add_cflags -fsanitize=undefined
2961 add_ldflags -fsanitize=undefined
2962 case "$toolchain" in
2963 clang-usan)
2964 add_cflags -O1
2965 ;;
2966 esac
2967 ;;
2968 valgrind-*)
2969 target_exec_default="valgrind"
2970 case "$toolchain" in
2971 valgrind-massif)
2972 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2973 ;;
2974 valgrind-memcheck)
2975 target_exec_args="--track-origins=yes --leak-check=full"
2976 ;;
2977 esac
2978 ;;
2979 msvc)
2980 # Check whether the current MSVC version needs the C99 converter.
2981 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2982 # support enough of C99 to build libav. Default to the new
2983 # behaviour if the regexp was unable to match anything, since this
2984 # successfully parses the version number of existing supported
2985 # versions that require the converter (MSVC 2010 and 2012).
2986 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2987 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2988 cc_default="cl"
2989 else
2990 cc_default="c99wrap cl"
2991 fi
2992 ld_default="$source_path/compat/windows/mslink"
2993 nm_default="dumpbin -symbols"
2994 ar_default="lib"
2995 case "$arch" in
2996 arm*)
2997 as_default="armasm"
2998 ;;
2999 esac
3000 target_os_default="win32"
3001 # Use a relative path for TMPDIR. This makes sure all the
3002 # ffconf temp files are written with a relative path, avoiding
3003 # issues with msys/win32 path conversion for MSVC parameters
3004 # such as -Fo<file> or -out:<file>.
3005 TMPDIR=.
3006 ;;
3007 icl)
3008 cc_default="icl"
3009 ld_default="xilink"
3010 nm_default="dumpbin -symbols"
3011 ar_default="xilib"
3012 target_os_default="win32"
3013 TMPDIR=.
3014 ;;
3015 gcov)
3016 add_cflags -fprofile-arcs -ftest-coverage
3017 add_ldflags -fprofile-arcs -ftest-coverage
3018 ;;
3019 llvm-cov)
3020 add_cflags -fprofile-arcs -ftest-coverage
3021 add_ldflags --coverage
3022 ;;
3023 hardened)
3024 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3025 add_cflags -fno-strict-overflow -fstack-protector-all
3026 add_ldflags -Wl,-z,relro -Wl,-z,now
3027 ;;
3028 ?*)
3029 die "Unknown toolchain $toolchain"
3030 ;;
3031 esac
3032
3033 test -n "$cross_prefix" && enable cross_compile
3034
3035 if enabled cross_compile; then
3036 test -n "$arch" && test -n "$target_os" ||
3037 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3038 fi
3039
3040 ar_default="${cross_prefix}${ar_default}"
3041 cc_default="${cross_prefix}${cc_default}"
3042 objcc_default="${cross_prefix}${objcc_default}"
3043 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3044 nm_default="${cross_prefix}${nm_default}"
3045 pkg_config_default="${cross_prefix}${pkg_config_default}"
3046 ranlib="${cross_prefix}${ranlib}"
3047 strip="${cross_prefix}${strip}"
3048
3049 sysinclude_default="${sysroot}/usr/include"
3050
3051 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3052 enabled cross_compile || host_cc_default=$cc
3053 set_default host_cc
3054
3055 if ! $pkg_config --version >/dev/null 2>&1; then
3056 warn "$pkg_config not found, library detection may fail."
3057 pkg_config=false
3058 fi
3059
3060 exesuf() {
3061 case $1 in
3062 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3063 esac
3064 }
3065
3066 EXESUF=$(exesuf $target_os)
3067 HOSTEXESUF=$(exesuf $host_os)
3068
3069 # set temporary file name
3070 : ${TMPDIR:=$TEMPDIR}
3071 : ${TMPDIR:=$TMP}
3072 : ${TMPDIR:=/tmp}
3073
3074 if ! check_cmd mktemp -u XXXXXX; then
3075 # simple replacement for missing mktemp
3076 # NOT SAFE FOR GENERAL USE
3077 mktemp(){
3078 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3079 echo "$tmpname"
3080 mkdir "$tmpname"
3081 }
3082 fi
3083
3084 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3085 die "Unable to create temporary directory in $TMPDIR."
3086
3087 tmpfile(){
3088 tmp="${AVTMPDIR}/test"$2
3089 (set -C; exec > $tmp) 2> /dev/null ||
3090 die "Unable to create temporary file in $AVTMPDIR."
3091 eval $1=$tmp
3092 }
3093
3094 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3095 trap 'exit 2' INT
3096
3097 tmpfile TMPASM .asm
3098 tmpfile TMPC .c
3099 tmpfile TMPE $EXESUF
3100 tmpfile TMPH .h
3101 tmpfile TMPO .o
3102 tmpfile TMPS .S
3103 tmpfile TMPSH .sh
3104 tmpfile TMPV .ver
3105
3106 unset -f mktemp
3107
3108 chmod +x $TMPE
3109
3110 # make sure we can execute files in $TMPDIR
3111 cat > $TMPSH 2>> $logfile <<EOF
3112 #! /bin/sh
3113 EOF
3114 chmod +x $TMPSH >> $logfile 2>&1
3115 if ! $TMPSH >> $logfile 2>&1; then
3116 cat <<EOF
3117 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3118 variable to another directory and make sure that it is not mounted noexec.
3119 EOF
3120 die "Sanity test failed."
3121 fi
3122
3123 armasm_flags(){
3124 for flag; do
3125 case $flag in
3126 # Filter out MSVC cl.exe options from cflags that shouldn't
3127 # be passed to gas-preprocessor
3128 -M[TD]*) ;;
3129 *) echo $flag ;;
3130 esac
3131 done
3132 }
3133
3134 ccc_flags(){
3135 for flag; do
3136 case $flag in
3137 -std=c99) echo -c99 ;;
3138 -mcpu=*) echo -arch ${flag#*=} ;;
3139 -mieee) echo -ieee ;;
3140 -O*|-fast) echo $flag ;;
3141 -fno-math-errno) echo -assume nomath_errno ;;
3142 -g) echo -g3 ;;
3143 -Wall) echo -msg_enable level2 ;;
3144 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3145 -Wl,*) echo $flag ;;
3146 -f*|-W*) ;;
3147 *) echo $flag ;;
3148 esac
3149 done
3150 }
3151
3152 cparser_flags(){
3153 for flag; do
3154 case $flag in
3155 -Wno-switch) echo -Wno-switch-enum ;;
3156 -Wno-format-zero-length) ;;
3157 -Wdisabled-optimization) ;;
3158 -Wno-pointer-sign) echo -Wno-other ;;
3159 *) echo $flag ;;
3160 esac
3161 done
3162 }
3163
3164 msvc_common_flags(){
3165 for flag; do
3166 case $flag in
3167 # In addition to specifying certain flags under the compiler
3168 # specific filters, they must be specified here as well or else the
3169 # generic catch all at the bottom will print the original flag.
3170 -Wall) ;;
3171 -Wextra) ;;
3172 -std=c99) ;;
3173 # Common flags
3174 -fomit-frame-pointer) ;;
3175 -g) echo -Z7 ;;
3176 -fno-math-errno) ;;
3177 -fno-common) ;;
3178 -fno-signed-zeros) ;;
3179 -fPIC) ;;
3180 -mthumb) ;;
3181 -march=*) ;;
3182 -lz) echo zlib.lib ;;
3183 -lx264) echo libx264.lib ;;
3184 -l*) echo ${flag#-l}.lib ;;
3185 -L*) echo -libpath:${flag#-L} ;;
3186 *) echo $flag ;;
3187 esac
3188 done
3189 }
3190
3191 msvc_flags(){
3192 msvc_common_flags "$@"
3193 for flag; do
3194 case $flag in
3195 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3196 -wd4554 ;;
3197 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3198 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3199 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3200 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3201 esac
3202 done
3203 }
3204
3205 icl_flags(){
3206 msvc_common_flags "$@"
3207 for flag; do
3208 case $flag in
3209 # Despite what Intel's documentation says -Wall, which is supported
3210 # on Windows, does enable remarks so disable them here.
3211 -Wall) echo $flag -Qdiag-disable:remark ;;
3212 -std=c99) echo -Qstd=c99 ;;
3213 esac
3214 done
3215 }
3216
3217 pgi_flags(){
3218 for flag; do
3219 case $flag in
3220 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3221 -fomit-frame-pointer) echo -Mnoframe ;;
3222 -g) echo -gopt ;;
3223 *) echo $flag ;;
3224 esac
3225 done
3226 }
3227
3228 suncc_flags(){
3229 for flag; do
3230 case $flag in
3231 -march=*|-mcpu=*)
3232 case "${flag#*=}" in
3233 native) echo -xtarget=native ;;
3234 v9|niagara) echo -xarch=sparc ;;
3235 ultrasparc) echo -xarch=sparcvis ;;
3236 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3237 i586|pentium) echo -xchip=pentium ;;
3238 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3239 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3240 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3241 pentium4*) echo -xtarget=pentium4 ;;
3242 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3243 *-sse3) echo -xarch=sse3 ;;
3244 core2) echo -xarch=ssse3 -xchip=core2 ;;
3245 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3246 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3247 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3248 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3249 k8|opteron|athlon64|athlon-fx)
3250 echo -xarch=sse2a ;;
3251 athlon*) echo -xarch=pentium_proa ;;
3252 esac
3253 ;;
3254 -std=c99) echo -xc99 ;;
3255 -fomit-frame-pointer) echo -xregs=frameptr ;;
3256 -fPIC) echo -KPIC -xcode=pic32 ;;
3257 -W*,*) echo $flag ;;
3258 -f*-*|-W*|-mimpure-text) ;;
3259 -shared) echo -G ;;
3260 *) echo $flag ;;
3261 esac
3262 done
3263 }
3264
3265 tms470_flags(){
3266 for flag; do
3267 case $flag in
3268 -march=*|-mcpu=*)
3269 case "${flag#*=}" in
3270 armv7-a|cortex-a*) echo -mv=7a8 ;;
3271 armv7-r|cortex-r*) echo -mv=7r4 ;;
3272 armv7-m|cortex-m*) echo -mv=7m3 ;;
3273 armv6*|arm11*) echo -mv=6 ;;
3274 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3275 echo -mv=5e ;;
3276 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3277 esac
3278 ;;
3279 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3280 -mfpu=vfp) echo --float_support=vfpv2 ;;
3281 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3282 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3283 -msoft-float) echo --float_support=vfplib ;;
3284 -O[0-3]|-mf=*) echo $flag ;;
3285 -g) echo -g -mn ;;
3286 -pds=*) echo $flag ;;
3287 -D*|-I*) echo $flag ;;
3288 --gcc|--abi=*) echo $flag ;;
3289 -me) echo $flag ;;
3290 esac
3291 done
3292 }
3293
3294 probe_cc(){
3295 pfx=$1
3296 _cc=$2
3297
3298 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3299 unset _ld_o _ldflags _ld_lib _ld_path
3300 unset _depflags _DEPCMD _DEPFLAGS
3301 _flags_filter=echo
3302
3303 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3304 _type=llvm_gcc
3305 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3306 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3307 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3308 _cflags_speed='-O3'
3309 _cflags_size='-Os'
3310 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3311 _type=gcc
3312 gcc_version=$($_cc --version | head -n1)
3313 gcc_basever=$($_cc -dumpversion)
3314 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3315 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3316 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3317 if ! $_cc -dumpversion | grep -q '^2\.'; then
3318 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3319 fi
3320 _cflags_speed='-O3'
3321 _cflags_size='-Os'
3322 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3323 _type=icc
3324 _ident=$($_cc --version | head -n1)
3325 _depflags='-MMD'
3326 _cflags_speed='-O3'
3327 _cflags_size='-Os'
3328 _cflags_noopt='-O1'
3329 elif $_cc -v 2>&1 | grep -q xlc; then
3330 _type=xlc
3331 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3332 _cflags_speed='-O5'
3333 _cflags_size='-O5 -qcompact'
3334 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3335 _type=ccc
3336 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3337 _DEPFLAGS='-M'
3338 _cflags_speed='-fast'
3339 _cflags_size='-O1'
3340 _flags_filter=ccc_flags
3341 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3342 test -d "$sysroot" || die "No valid sysroot specified."
3343 _type=armcc
3344 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3345 armcc_conf="$PWD/armcc.conf"
3346 $_cc --arm_linux_configure \
3347 --arm_linux_config_file="$armcc_conf" \
3348 --configure_sysroot="$sysroot" \
3349 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3350 die "Error creating armcc configuration file."
3351 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3352 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3353 as_default="${cross_prefix}gcc"
3354 _depflags='-MMD'
3355 _cflags_speed='-O3'
3356 _cflags_size='-Os'
3357 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3358 _type=tms470
3359 _ident=$($_cc -version | head -n1 | tr -s ' ')
3360 _flags='--gcc --abi=eabi -me'
3361 _cc_e='-ppl -fe=$@'
3362 _cc_o='-fe=$@'
3363 _depflags='-ppa -ppd=$(@:.o=.d)'
3364 _cflags_speed='-O3 -mf=5'
3365 _cflags_size='-O3 -mf=2'
3366 _flags_filter=tms470_flags
3367 elif $_cc -v 2>&1 | grep -q clang; then
3368 _type=clang
3369 _ident=$($_cc --version 2>/dev/null | head -n1)
3370 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3371 _cflags_speed='-O3'
3372 _cflags_size='-Os'
3373 elif $_cc -V 2>&1 | grep -q Sun; then
3374 _type=suncc
3375 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3376 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3377 _DEPFLAGS='-xM1 -xc99'
3378 _ldflags='-std=c99'
3379 _cflags_speed='-O5'
3380 _cflags_size='-O5 -xspace'
3381 _flags_filter=suncc_flags
3382 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3383 _type=pathscale
3384 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3385 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3386 _cflags_speed='-O2'
3387 _cflags_size='-Os'
3388 _flags_filter='filter_out -Wdisabled-optimization'
3389 elif $_cc -v 2>&1 | grep -q Open64; then
3390 _type=open64
3391 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3392 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3393 _cflags_speed='-O2'
3394 _cflags_size='-Os'
3395 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3396 elif $_cc -V 2>&1 | grep -q Portland; then
3397 _type=pgi
3398 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3399 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3400 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3401 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3402 _cflags_noopt="-O1"
3403 _flags_filter=pgi_flags
3404 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3405 _type=armasm
3406 _ident=$($_cc | head -n1)
3407 # 4509: "This form of conditional instruction is deprecated"
3408 _flags="-nologo -ignore 4509"
3409 _flags_filter=armasm_flags
3410 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3411 _type=msvc
3412 _ident=$($_cc 2>&1 | head -n1)
3413 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3414 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3415 _cflags_speed="-O2"
3416 _cflags_size="-O1"
3417 _cflags_noopt="-O1"
3418 if $_cc -nologo- 2>&1 | grep -q Linker; then
3419 _ld_o='-out:$@'
3420 else
3421 _ld_o='-Fe$@'
3422 fi
3423 _cc_o='-Fo$@'
3424 _cc_e='-P -Fi$@'
3425 _flags_filter=msvc_flags
3426 _ld_lib='lib%.a'
3427 _ld_path='-libpath:'
3428 _flags='-nologo'
3429 elif $_cc 2>&1 | grep -q Intel; then
3430 _type=icl
3431 _ident=$($_cc 2>&1 | head -n1)
3432 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3433 # Not only is O3 broken on 13.x+ but it is slower on all previous
3434 # versions (tested) as well.
3435 _cflags_speed="-O2"
3436 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3437 if $_cc 2>&1 | grep -q Linker; then
3438 _ld_o='-out:$@'
3439 else
3440 _ld_o='-Fe$@'
3441 fi
3442 _cc_o='-Fo$@'
3443 _cc_e='-P'
3444 _flags_filter=icl_flags
3445 _ld_lib='lib%.a'
3446 _ld_path='-libpath:'
3447 # -Qdiag-error to make icl error when seeing certain unknown arguments
3448 _flags='-nologo -Qdiag-error:4044,10157'
3449 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3450 # with MSVC which enables it by default.
3451 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3452 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3453 # lld can emulate multiple different linkers; in ms link.exe mode,
3454 # the -? parameter gives the help output which contains an identifyable
3455 # string, while it gives an error in other modes.
3456 _type=lld-link
3457 # The link.exe mode doesn't have a switch for getting the version,
3458 # but we can force it back to gnu mode and get the version from there.
3459 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3460 _ld_o='-out:$@'
3461 _flags_filter=msvc_flags
3462 _ld_lib='lib%.a'
3463 _ld_path='-libpath:'
3464 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3465 _type=cparser
3466 _ident=$($_cc --version | head -n1)
3467 _depflags='-MMD'
3468 _cflags_speed='-O4'
3469 _cflags_size='-O2'
3470 _flags_filter=cparser_flags
3471 fi
3472
3473 eval ${pfx}_type=\$_type
3474 eval ${pfx}_ident=\$_ident
3475 }
3476
3477 set_ccvars(){
3478 eval ${1}_C=\${_cc_c-\${${1}_C}}
3479 eval ${1}_E=\${_cc_e-\${${1}_E}}
3480 eval ${1}_O=\${_cc_o-\${${1}_O}}
3481
3482 if [ -n "$_depflags" ]; then
3483 eval ${1}_DEPFLAGS=\$_depflags
3484 else
3485 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3486 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3487 eval DEP${1}FLAGS=\$_flags
3488 fi
3489 }
3490
3491 probe_cc cc "$cc"
3492 cflags_filter=$_flags_filter
3493 cflags_speed=$_cflags_speed
3494 cflags_size=$_cflags_size
3495 cflags_noopt=$_cflags_noopt
3496 add_cflags $_flags $_cflags
3497 cc_ldflags=$_ldflags
3498 set_ccvars CC
3499
3500 probe_cc hostcc "$host_cc"
3501 host_cflags_filter=$_flags_filter
3502 host_cflags_speed=$_cflags_speed
3503 add_host_cflags $_flags $_cflags
3504 set_ccvars HOSTCC
3505
3506 test -n "$cc_type" && enable $cc_type ||
3507 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3508
3509 : ${as_default:=$cc}
3510 : ${objcc_default:=$cc}
3511 : ${dep_cc_default:=$cc}
3512 : ${ld_default:=$cc}
3513 : ${host_ld_default:=$host_cc}
3514 set_default ar as objcc dep_cc ld host_ld
3515
3516 probe_cc as "$as"
3517 asflags_filter=$_flags_filter
3518 add_asflags $_flags $_cflags
3519 set_ccvars AS
3520
3521 probe_cc objcc "$objcc"
3522 objcflags_filter=$_flags_filter
3523 add_objcflags $_flags $_cflags
3524 set_ccvars OBJC
3525
3526 probe_cc ld "$ld"
3527 ldflags_filter=$_flags_filter
3528 add_ldflags $_flags $_ldflags
3529 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3530 LD_O=${_ld_o-$LD_O}
3531 LD_LIB=${_ld_lib-$LD_LIB}
3532 LD_PATH=${_ld_path-$LD_PATH}
3533
3534 probe_cc hostld "$host_ld"
3535 host_ldflags_filter=$_flags_filter
3536 add_host_ldflags $_flags $_ldflags
3537 HOSTLD_O=${_ld_o-$HOSTLD_O}
3538
3539 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3540 probe_cc depcc "$dep_cc"
3541 CCDEP=${_DEPCMD:-$DEPCMD}
3542 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3543 DEPCCFLAGS=$_flags
3544 fi
3545
3546 if $ar 2>&1 | grep -q Microsoft; then
3547 arflags="-nologo"
3548 ar_o='-out:$@'
3549 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3550 arflags="rq"
3551 ar_o='$@'
3552 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3553 arflags='-Xany -r -c'
3554 ar_o='$@'
3555 else
3556 arflags="rc"
3557 ar_o='$@'
3558 fi
3559
3560 add_cflags $extra_cflags
3561 add_objcflags $extra_objcflags
3562 add_asflags $extra_cflags
3563
3564 if test -n "$sysroot"; then
3565 case "$cc_type" in
3566 gcc|llvm_gcc|clang)
3567 add_cppflags --sysroot="$sysroot"
3568 add_ldflags --sysroot="$sysroot"
3569 ;;
3570 tms470)
3571 add_cppflags -I"$sysinclude"
3572 add_ldflags --sysroot="$sysroot"
3573 ;;
3574 esac
3575 fi
3576
3577 if test "$cpu" = host; then
3578 enabled cross_compile &&
3579 die "--cpu=host makes no sense when cross-compiling."
3580
3581 case "$cc_type" in
3582 gcc|llvm_gcc)
3583 check_native(){
3584 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3585 sed -n "/cc1.*$1=/{
3586 s/.*$1=\\([^ ]*\\).*/\\1/
3587 p
3588 q
3589 }" $TMPE
3590 }
3591 cpu=$(check_native -march || check_native -mcpu)
3592 ;;
3593 esac
3594
3595 test "${cpu:-host}" = host &&
3596 die "--cpu=host not supported with compiler $cc"
3597 fi
3598
3599 # Deal with common $arch aliases
3600 case "$arch" in
3601 aarch64|arm64)
3602 arch="aarch64"
3603 ;;
3604 arm*)
3605 arch="arm"
3606 ;;
3607 mips*|IP*)
3608 case "$arch" in
3609 *el)
3610 add_cppflags -EL
3611 add_ldflags -EL
3612 ;;
3613 *eb)
3614 add_cppflags -EB
3615 add_ldflags -EB
3616 ;;
3617 esac
3618 arch="mips"
3619 ;;
3620 parisc*|hppa*)
3621 arch="parisc"
3622 ;;
3623 "Power Macintosh"|ppc*|powerpc*)
3624 arch="ppc"
3625 ;;
3626 s390|s390x)
3627 arch="s390"
3628 ;;
3629 sh4|sh)
3630 arch="sh4"
3631 ;;
3632 sun4u|sparc*)
3633 arch="sparc"
3634 ;;
3635 tilegx|tile-gx)
3636 arch="tilegx"
3637 ;;
3638 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3639 arch="x86"
3640 ;;
3641 esac
3642
3643 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3644 enable $arch
3645
3646 # Add processor-specific flags
3647 if enabled aarch64; then
3648
3649 case $cpu in
3650 armv*)
3651 cpuflags="-march=$cpu"
3652 ;;
3653 *)
3654 cpuflags="-mcpu=$cpu"
3655 ;;
3656 esac
3657
3658 elif enabled alpha; then
3659
3660 cpuflags="-mcpu=$cpu"
3661
3662 elif enabled arm; then
3663
3664 check_arm_arch() {
3665 check_cpp_condition stddef.h \
3666 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3667 $cpuflags
3668 }
3669
3670 probe_arm_arch() {
3671 if check_arm_arch 4; then echo armv4
3672 elif check_arm_arch 4T; then echo armv4t
3673 elif check_arm_arch 5; then echo armv5
3674 elif check_arm_arch 5E; then echo armv5e
3675 elif check_arm_arch 5T; then echo armv5t
3676 elif check_arm_arch 5TE; then echo armv5te
3677 elif check_arm_arch 5TEJ; then echo armv5te
3678 elif check_arm_arch 6; then echo armv6
3679 elif check_arm_arch 6J; then echo armv6j
3680 elif check_arm_arch 6K; then echo armv6k
3681 elif check_arm_arch 6Z; then echo armv6z
3682 elif check_arm_arch 6ZK; then echo armv6zk
3683 elif check_arm_arch 6T2; then echo armv6t2
3684 elif check_arm_arch 7; then echo armv7
3685 elif check_arm_arch 7A 7_A; then echo armv7-a
3686 elif check_arm_arch 7S; then echo armv7-a
3687 elif check_arm_arch 7R 7_R; then echo armv7-r
3688 elif check_arm_arch 7M 7_M; then echo armv7-m
3689 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3690 elif check_arm_arch 8A 8_A; then echo armv8-a
3691 fi
3692 }
3693
3694 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3695
3696 case $cpu in
3697 armv*)
3698 cpuflags="-march=$cpu"
3699 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3700 ;;
3701 *)
3702 cpuflags="-mcpu=$cpu"
3703 case $cpu in
3704 cortex-a*) subarch=armv7a ;;
3705 cortex-r*) subarch=armv7r ;;
3706 cortex-m*) enable thumb; subarch=armv7m ;;
3707 arm11*) subarch=armv6 ;;
3708 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3709 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3710 *) subarch=$(probe_arm_arch) ;;
3711 esac
3712 ;;
3713 esac
3714
3715 case "$subarch" in
3716 armv5t*) enable fast_clz ;;
3717 armv[6-8]*) enable fast_clz fast_unaligned ;;
3718 esac
3719
3720 elif enabled avr32; then
3721
3722 case $cpu in
3723 ap7[02]0[0-2])
3724 subarch="avr32_ap"
3725 cpuflags="-mpart=$cpu"
3726 ;;
3727 ap)
3728 subarch="avr32_ap"
3729 cpuflags="-march=$cpu"
3730 ;;
3731 uc3[ab]*)
3732 subarch="avr32_uc"
3733 cpuflags="-mcpu=$cpu"
3734 ;;
3735 uc)
3736 subarch="avr32_uc"
3737 cpuflags="-march=$cpu"
3738 ;;
3739 esac
3740
3741 elif enabled bfin; then
3742
3743 cpuflags="-mcpu=$cpu"
3744
3745 elif enabled mips; then
3746
3747 cpuflags="-march=$cpu"
3748
3749 elif enabled ppc; then
3750
3751 disable ldbrx
3752
3753 case $(tolower $cpu) in
3754 601|ppc601|powerpc601)
3755 cpuflags="-mcpu=601"
3756 disable altivec
3757 ;;
3758 603*|ppc603*|powerpc603*)
3759 cpuflags="-mcpu=603"
3760 disable altivec
3761 ;;
3762 604*|ppc604*|powerpc604*)
3763 cpuflags="-mcpu=604"
3764 disable altivec
3765 ;;
3766 g3|75*|ppc75*|powerpc75*)
3767 cpuflags="-mcpu=750"
3768 disable altivec
3769 ;;
3770 g4|745*|ppc745*|powerpc745*)
3771 cpuflags="-mcpu=7450"
3772 disable vsx
3773 ;;
3774 74*|ppc74*|powerpc74*)
3775 cpuflags="-mcpu=7400"
3776 disable vsx
3777 ;;
3778 g5|970|ppc970|powerpc970)
3779 cpuflags="-mcpu=970"
3780 disable vsx
3781 ;;
3782 power[3-6]*)
3783 cpuflags="-mcpu=$cpu"
3784 disable vsx
3785 ;;
3786 power[7-8]*)
3787 cpuflags="-mcpu=$cpu"
3788 enable ldbrx
3789 ;;
3790 cell)
3791 cpuflags="-mcpu=cell"
3792 enable ldbrx
3793 disable vsx
3794 ;;
3795 e500mc)
3796 cpuflags="-mcpu=e500mc"
3797 disable altivec
3798 ;;
3799 e500v2)
3800 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3801 disable altivec
3802 disable dcbzl
3803 ;;
3804 e500)
3805 cpuflags="-mcpu=8540 -mhard-float"
3806 disable altivec
3807 disable dcbzl
3808 ;;
3809 esac
3810
3811 elif enabled sparc; then
3812
3813 case $cpu in
3814 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3815 cpuflags="-mcpu=$cpu"
3816 ;;
3817 ultrasparc*|niagara[234])
3818 cpuflags="-mcpu=$cpu"
3819 ;;
3820 esac
3821
3822 elif enabled x86; then
3823
3824 case $cpu in
3825 i[345]86|pentium)
3826 cpuflags="-march=$cpu"
3827 disable i686
3828 disable mmx
3829 ;;
3830 # targets that do NOT support nopl and conditional mov (cmov)
3831 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3832 cpuflags="-march=$cpu"
3833 disable i686
3834 ;;
3835 # targets that do support nopl and conditional mov (cmov)
3836 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3837 cpuflags="-march=$cpu"
3838 enable i686
3839 enable fast_cmov
3840 ;;
3841 # targets that do support conditional mov but on which it's slow
3842 pentium4|pentium4m|prescott|nocona)
3843 cpuflags="-march=$cpu"
3844 enable i686
3845 disable fast_cmov
3846 ;;
3847 esac
3848
3849 fi
3850
3851 if [ "$cpu" != generic ]; then
3852 add_cflags $cpuflags
3853 add_asflags $cpuflags
3854 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3855 fi
3856
3857 # compiler sanity check
3858 check_exec <<EOF
3859 int main(void){ return 0; }
3860 EOF
3861 if test "$?" != 0; then
3862 echo "$cc is unable to create an executable file."
3863 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3864 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3865 echo "Only do this if you know what cross compiling means."
3866 fi
3867 die "C compiler test failed."
3868 fi
3869
3870 add_cppflags -D_ISOC99_SOURCE
3871
3872 # some compilers silently accept -std=c11, so we also need to check that the
3873 # version macro is defined properly
3874 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3875 add_cflags -std=c11 ||
3876 check_cflags -std=c99
3877
3878 check_cppflags -D_FILE_OFFSET_BITS=64
3879 check_cppflags -D_LARGEFILE_SOURCE
3880
3881 add_host_cppflags -D_ISOC99_SOURCE
3882 check_host_cflags -std=c99
3883 check_host_cflags -Wall
3884 check_host_cflags $host_cflags_speed
3885
3886 check_64bit(){
3887 arch32=$1
3888 arch64=$2
3889 expr=$3
3890 check_code cc "" "int test[2*($expr) - 1]" &&
3891 subarch=$arch64 || subarch=$arch32
3892 }
3893
3894 case "$arch" in
3895 aarch64|alpha|ia64)
3896 spic=$shared
3897 ;;
3898 mips)
3899 check_64bit mips mips64 '_MIPS_SIM > 1'
3900 spic=$shared
3901 ;;
3902 parisc)
3903 check_64bit parisc parisc64 'sizeof(void *) > 4'
3904 spic=$shared
3905 ;;
3906 ppc)
3907 check_64bit ppc ppc64 'sizeof(void *) > 4'
3908 spic=$shared
3909 ;;
3910 s390)
3911 check_64bit s390 s390x 'sizeof(void *) > 4'
3912 spic=$shared
3913 ;;
3914 sparc)
3915 check_64bit sparc sparc64 'sizeof(void *) > 4'
3916 spic=$shared
3917 ;;
3918 x86)
3919 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3920 if test "$subarch" = "x86_64"; then
3921 spic=$shared
3922 fi
3923 ;;
3924 esac
3925
3926 enable $subarch
3927 enabled spic && enable_weak pic
3928
3929 enabled x86_64 && objformat=elf64 || objformat="elf32"
3930
3931 # OS specific
3932 case $target_os in
3933 aix)
3934 SHFLAGS=-shared
3935 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3936 enabled shared && add_ldflags -Wl,-brtl
3937 ;;
3938 android)
3939 disable symver
3940 enable section_data_rel_ro
3941 SLIB_INSTALL_NAME='$(SLIBNAME)'
3942 SLIB_INSTALL_LINKS=
3943 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3944 ;;
3945 haiku)
3946 prefix_default="/boot/common"
3947 network_extralibs="-lnetwork"
3948 host_extralibs=
3949 ;;
3950 sunos)
3951 SHFLAGS='-shared -Wl,-h,$$(@F)'
3952 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3953 network_extralibs="-lsocket -lnsl"
3954 # When using suncc to build, the Solaris linker will mark
3955 # an executable with each instruction set encountered by
3956 # the Solaris assembler. As our libraries contain their own
3957 # guards for processor-specific code, instead suppress
3958 # generation of the HWCAPS ELF section on Solaris x86 only.
3959 enabled_all suncc x86 &&
3960 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3961 add_ldflags -Wl,-M,mapfile
3962 nm_default='nm -P -g'
3963 version_script='-M'
3964 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3965 ;;
3966 netbsd)
3967 disable symver
3968 oss_indev_extralibs="-lossaudio"
3969 oss_outdev_extralibs="-lossaudio"
3970 ;;
3971 openbsd|bitrig)
3972 disable symver
3973 SHFLAGS='-shared'
3974 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3975 SLIB_INSTALL_LINKS=
3976 oss_indev_extralibs="-lossaudio"
3977 oss_outdev_extralibs="-lossaudio"
3978 ;;
3979 dragonfly)
3980 disable symver
3981 ;;
3982 freebsd)
3983 ;;
3984 bsd/os)
3985 add_extralibs -lpoll -lgnugetopt
3986 ;;
3987 darwin)
3988 enabled ppc && add_asflags -force_cpusubtype_ALL
3989 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3990 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3991 add_ldflags -Wl,-dynamic,-search_paths_first
3992 check_cflags -Werror=partial-availability
3993 SLIBSUF=".dylib"
3994 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3995 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3996 enabled x86_64 && objformat="macho64" || objformat="macho32"
3997 enabled_any pic shared ||
3998 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3999 check_header dispatch/dispatch.h &&
4000 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4001 if test -n "$sysroot"; then
4002 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4003 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
4004 fi
4005 ;;
4006 msys*)
4007 die "Native MSYS builds are discouraged, please use the MINGW environment."
4008 ;;
4009 mingw32*|mingw64*)
4010 if test $target_os = "mingw32ce"; then
4011 disable network
4012 else
4013 target_os=mingw32
4014 fi
4015 LIBTARGET=i386
4016 if enabled x86_64; then
4017 LIBTARGET="i386:x86-64"
4018 elif enabled arm; then
4019 LIBTARGET=arm-wince
4020 fi
4021 check_ldflags -Wl,--nxcompat
4022 check_ldflags -Wl,--dynamicbase
4023 shlibdir_default="$bindir_default"
4024 SLIBPREF=""
4025 SLIBSUF=".dll"
4026 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4027 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4028 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4029 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4030 SLIB_INSTALL_LINKS=
4031 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4032 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4033 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4034 enabled x86_64 && objformat="win64" || objformat="win32"
4035 dlltool="${cross_prefix}dlltool"
4036 ranlib=:
4037 enable dos_paths
4038 ;;
4039 win32|win64)
4040 disable symver
4041 if enabled shared; then
4042 # Link to the import library instead of the normal static library
4043 # for shared libs.
4044 LD_LIB='%.lib'
4045 # Cannot build both shared and static libs with MSVC or icl.
4046 disable static
4047 fi
4048 shlibdir_default="$bindir_default"
4049 SLIBPREF=""
4050 SLIBSUF=".dll"
4051 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4052 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4053 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4054 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4055 SLIB_INSTALL_LINKS=
4056 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4057 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4058 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4059 enabled x86_64 && objformat="win64" || objformat="win32"
4060 ranlib=:
4061 enable dos_paths
4062 ;;
4063 cygwin*)
4064 target_os=cygwin
4065 shlibdir_default="$bindir_default"
4066 SLIBPREF="cyg"
4067 SLIBSUF=".dll"
4068 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4069 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4070 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4071 SLIB_INSTALL_LINKS=
4072 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4073 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4074 enabled x86_64 && objformat="win64" || objformat="win32"
4075 enable dos_paths
4076 ;;
4077 *-dos|freedos|opendos)
4078 network_extralibs="-lsocket"
4079 objformat="coff"
4080 enable dos_paths
4081 add_cppflags -U__STRICT_ANSI__
4082 ;;
4083 linux)
4084 enable dv1394
4085 enable section_data_rel_ro
4086 ;;
4087 irix*)
4088 target_os=irix
4089 ranlib="echo ignoring ranlib"
4090 ;;
4091 os/2*)
4092 ln_s="cp -f"
4093 objformat="aout"
4094 add_cppflags -D_GNU_SOURCE
4095 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4096 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4097 LIBSUF="_s.a"
4098 SLIBPREF=""
4099 SLIBSUF=".dll"
4100 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4101 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4102 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4103 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4104 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4105 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4106 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4107 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4108 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4109 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4110 enable dos_paths
4111 ;;
4112 gnu/kfreebsd)
4113 add_cppflags -D_BSD_SOURCE
4114 ;;
4115 gnu)
4116 ;;
4117 qnx)
4118 add_cppflags -D_QNX_SOURCE
4119 network_extralibs="-lsocket"
4120 ;;
4121 symbian)
4122 SLIBSUF=".dll"
4123 enable dos_paths
4124 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4125 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4126 add_ldflags -Wl,--target1-abs,--no-undefined \
4127 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4128 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4129 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4130 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4131 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4132 ;;
4133 osf1)
4134 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4135 ;;
4136 minix)
4137 ;;
4138 none)
4139 ;;
4140 *)
4141 die "Unknown OS '$target_os'."
4142 ;;
4143 esac
4144
4145 # determine libc flavour
4146
4147 probe_libc(){
4148 pfx=$1
4149 pfx_no_=${pfx%_}
4150 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4151 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4152 eval ${pfx}libc_type=uclibc
4153 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4154 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4155 eval ${pfx}libc_type=glibc
4156 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4157 # MinGW headers can be installed on Cygwin, so check for newlib first.
4158 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4159 eval ${pfx}libc_type=newlib
4160 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4161 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4162 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4163 eval ${pfx}libc_type=mingw64
4164 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4165 eval test \$${pfx_no_}cc_type = "gcc" &&
4166 add_${pfx}cppflags -D__printf__=__gnu_printf__
4167 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4168 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4169 eval ${pfx}libc_type=mingw32
4170 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4171 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4172 die "ERROR: MinGW32 runtime version must be >= 3.15."
4173 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4174 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4175 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4176 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4177 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4178 eval test \$${pfx_no_}cc_type = "gcc" &&
4179 add_${pfx}cppflags -D__printf__=__gnu_printf__
4180 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4181 eval ${pfx}libc_type=msvcrt
4182 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4183 if [ "$pfx" = host_ ]; then
4184 add_host_cppflags -Dsnprintf=_snprintf
4185 else
4186 add_compat strtod.o strtod=avpriv_strtod
4187 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4188 _snprintf=avpriv_snprintf \
4189 vsnprintf=avpriv_vsnprintf
4190 fi
4191 fi
4192 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4193 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4194 # 0x601 by default unless something else is set by the user.
4195 # This can easily lead to us detecting functions only present
4196 # in such new versions and producing binaries requiring windows 7.0.
4197 # Therefore explicitly set the default to XP unless the user has
4198 # set something else on the command line.
4199 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4200 # family. For these cases, configure is free to use any functions
4201 # found in the SDK headers by default. (Alternatively, we could force
4202 # _WIN32_WINNT to 0x0602 in that case.)
4203 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4204 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4205 #ifdef WINAPI_FAMILY
4206 #include <winapifamily.h>
4207 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4208 #error not desktop
4209 #endif
4210 #endif
4211 EOF
4212 if [ "$pfx" = "" ]; then
4213 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4214 fi
4215 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4216 eval ${pfx}libc_type=klibc
4217 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4218 eval ${pfx}libc_type=bionic
4219 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4220 eval ${pfx}libc_type=solaris
4221 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4222 else
4223 eval ${pfx}libc_type=default
4224 add_${pfx}cppflags -D_DEFAULT_SOURCE
4225 fi
4226 }
4227
4228 probe_libc
4229 test -n "$libc_type" && enable libc_$libc_type
4230 probe_libc host_
4231 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4232
4233 # hacks for compiler/libc/os combinations
4234
4235 case $libc_type in
4236 bionic)
4237 add_compat strtod.o strtod=avpriv_strtod
4238 ;;
4239 glibc)
4240 if enabled tms470; then
4241 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4242 add_cppflags -D__USER_LABEL_PREFIX__=
4243 add_cppflags -D__builtin_memset=memset
4244 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4245 add_cflags -pds=48 # incompatible redefinition of macro
4246 elif enabled ccc; then
4247 add_ldflags -Wl,-z,now # calls to libots crash without this
4248 fi
4249 ;;
4250 esac
4251
4252 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4253 add_cppflags '-I\$(SRC_PATH)/compat/float'
4254
4255 esc(){
4256 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4257 }
4258
4259 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4260
4261 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4262
4263 set_default $PATHS_LIST
4264 set_default nm
4265
4266 # we need to build at least one lib type
4267 if ! enabled_any static shared; then
4268 cat <<EOF
4269 At least one library type must be built.
4270 Specify --enable-static to build the static libraries or --enable-shared to
4271 build the shared libraries as well. To only build the shared libraries specify
4272 --disable-static in addition to --enable-shared.
4273 EOF
4274 exit 1
4275 fi
4276
4277 disabled optimizations || check_cflags -fomit-frame-pointer
4278
4279 enable_weak_pic() {
4280 disabled pic && return
4281 enable pic
4282 add_cppflags -DPIC
4283 case "$target_os" in
4284 mingw*|cygwin*)
4285 ;;
4286 *)
4287 add_cflags -fPIC
4288 ;;
4289 esac
4290 add_asflags -fPIC
4291 }
4292
4293 enabled pic && enable_weak_pic
4294
4295 check_cc <<EOF || die "Symbol mangling check failed."
4296 int ff_extern;
4297 EOF
4298 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4299 extern_prefix=${sym%%ff_extern*}
4300
4301 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4302
4303 _restrict=
4304 for restrict_keyword in restrict __restrict__ __restrict; do
4305 check_cc <<EOF && _restrict=$restrict_keyword && break
4306 void foo(char * $restrict_keyword p);
4307 EOF
4308 done
4309
4310 check_cc <<EOF && enable pragma_deprecated
4311 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4312 EOF
4313
4314 check_cc <<EOF && enable attribute_packed
4315 struct { int x; } __attribute__((packed)) x;
4316 EOF
4317
4318 check_cc <<EOF && enable attribute_may_alias
4319 union { int x; } __attribute__((may_alias)) x;
4320 EOF
4321
4322 check_cc <<EOF || die "endian test failed"
4323 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4324 EOF
4325 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4326
4327 check_gas() {
4328 log "check_gas using '$as' as AS"
4329 # :vararg is used on aarch64, arm and ppc altivec
4330 check_as <<EOF || return 1
4331 .macro m n, y:vararg=0
4332 \n: .int \y
4333 .endm
4334 m x
4335 EOF
4336 # .altmacro is only used in arm asm
4337 ! enabled arm || check_as <<EOF || return 1
4338 .altmacro
4339 EOF
4340 enable gnu_as
4341 return 0
4342 }
4343
4344 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4345 nogas=:
4346 enabled_any arm aarch64 && nogas=die
4347 enabled_all ppc altivec && nogas=warn
4348 as_noop=-v
4349
4350 case $as_type in
4351 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4352 gcc) gaspp_as_type=gas ;;
4353 *) gaspp_as_type=$as_type ;;
4354 esac
4355
4356 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4357
4358 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4359 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4360
4361 if ! check_gas ; then
4362 as=${gas:=$as}
4363 check_gas || \
4364 $nogas "GNU assembler not found, install/update gas-preprocessor"
4365 fi
4366
4367 check_as <<EOF && enable as_func
4368 .func test
4369 .endfunc
4370 EOF
4371 fi
4372
4373 check_inline_asm inline_asm_labels '"1:\n"'
4374
4375 if enabled aarch64; then
4376 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4377 # internal assembler in clang 3.3 does not support this instruction
4378 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4379 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4380
4381 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4382
4383 elif enabled alpha; then
4384
4385 check_cflags -mieee
4386
4387 elif enabled arm; then
4388
4389 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4390 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb