lavc: Add h264_metadata bitstream filter
[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 cbs
1743 cbs_h264
1744 cbs_h265
1745 dirac_parse
1746 dvprofile
1747 faandct
1748 faanidct
1749 fdctdsp
1750 flacdsp
1751 fmtconvert
1752 g722dsp
1753 gmp
1754 golomb
1755 gplv3
1756 h263dsp
1757 h264chroma
1758 h264dsp
1759 h264parse
1760 h264pred
1761 h264qpel
1762 hevc_ps
1763 hpeldsp
1764 huffman
1765 huffyuvdsp
1766 huffyuvencdsp
1767 idctdsp
1768 iirfilter
1769 imdct15
1770 intrax8
1771 iso_media
1772 ividsp
1773 jpegtables
1774 lgplv3
1775 libx262
1776 libxcb_shape
1777 lpc
1778 lzf
1779 me_cmp
1780 mpeg_er
1781 mpegaudio
1782 mpegaudiodsp
1783 mpegaudioheader
1784 mpegvideo
1785 mpegvideoenc
1786 mss34dsp
1787 pixblockdsp
1788 qpeldsp
1789 qsv
1790 qsvdec
1791 qsvenc
1792 rangecoder
1793 riffdec
1794 riffenc
1795 rtpdec
1796 rtpenc_chain
1797 rv34dsp
1798 sinewin
1799 snappy
1800 srtp
1801 startcode
1802 texturedsp
1803 texturedspenc
1804 tpeldsp
1805 vaapi_encode
1806 vc1dsp
1807 videodsp
1808 vp3dsp
1809 vp56dsp
1810 vp8dsp
1811 wma_freqs
1812 wmv2dsp
1813 "
1814
1815 CMDLINE_SELECT="
1816 $ARCH_EXT_LIST
1817 $CONFIG_LIST
1818 $HAVE_LIST_CMDLINE
1819 $THREADS_LIST
1820 asm
1821 cross_compile
1822 debug
1823 extra_warnings
1824 logging
1825 lto
1826 optimizations
1827 rpath
1828 "
1829
1830 PATHS_LIST="
1831 bindir
1832 datadir
1833 docdir
1834 incdir
1835 libdir
1836 mandir
1837 prefix
1838 shlibdir
1839 "
1840
1841 CMDLINE_SET="
1842 $PATHS_LIST
1843 ar
1844 arch
1845 as
1846 cc
1847 objcc
1848 cpu
1849 cross_prefix
1850 custom_allocator
1851 dep_cc
1852 env
1853 extra_version
1854 host_cc
1855 host_cflags
1856 host_extralibs
1857 host_ld
1858 host_ldflags
1859 host_os
1860 ignore_tests
1861 ld
1862 logfile
1863 malloc_prefix
1864 nm
1865 optflags
1866 pkg_config
1867 pkg_config_flags
1868 random_seed
1869 samples
1870 sysinclude
1871 sysroot
1872 target_exec
1873 target_os
1874 target_path
1875 target_samples
1876 toolchain
1877 x86asmexe
1878 "
1879
1880 CMDLINE_APPEND="
1881 extra_cflags
1882 extra_objcflags
1883 host_cppflags
1884 "
1885
1886 # code dependency declarations
1887
1888 # architecture extensions
1889
1890 armv5te_deps="arm"
1891 armv6_deps="arm"
1892 armv6t2_deps="arm"
1893 armv8_deps="aarch64"
1894 neon_deps_any="aarch64 arm"
1895 intrinsics_neon_deps="neon"
1896 vfp_deps_any="aarch64 arm"
1897 vfpv3_deps="vfp"
1898
1899 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1900
1901 altivec_deps="ppc"
1902 dcbzl_deps="ppc"
1903 ldbrx_deps="ppc"
1904 ppc4xx_deps="ppc"
1905 vsx_deps="altivec"
1906 power8_deps="vsx"
1907
1908 loongson_deps="mips"
1909 mips32r1_deps="mips32"
1910 mips32r2_deps="mips32"
1911 mips32r6_deps="mips32"
1912 mips64r1_deps="mips64"
1913 mips64r2_deps="mips64"
1914 mips64r6_deps="mips64"
1915
1916 vis_deps="sparc"
1917
1918 cpunop_deps="i686"
1919 x86_64_select="i686"
1920 x86_64_suggest="fast_cmov"
1921
1922 amd3dnow_deps="mmx"
1923 amd3dnowext_deps="amd3dnow"
1924 i686_deps="x86"
1925 mmx_deps="x86"
1926 mmxext_deps="mmx"
1927 sse_deps="mmxext"
1928 sse2_deps="sse"
1929 sse3_deps="sse2"
1930 ssse3_deps="sse3"
1931 sse4_deps="ssse3"
1932 sse42_deps="sse4"
1933 avx_deps="sse42"
1934 xop_deps="avx"
1935 fma3_deps="avx"
1936 fma4_deps="avx"
1937 avx2_deps="avx"
1938
1939 mmx_external_deps="x86asm"
1940 mmx_inline_deps="inline_asm x86"
1941 mmx_suggest="mmx_external mmx_inline"
1942
1943 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1944 eval dep=\$${ext}_deps
1945 eval ${ext}_external_deps='"${dep}_external"'
1946 eval ${ext}_inline_deps='"${dep}_inline"'
1947 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1948 done
1949
1950 aligned_stack_if_any="aarch64 ppc x86"
1951 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1952 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1953 fast_unaligned_if_any="aarch64 ppc x86"
1954 simd_align_16_if_any="altivec neon sse"
1955 simd_align_32_if_any="avx"
1956
1957 # system capabilities
1958 symver_if_any="symver_asm_label symver_gnu_asm"
1959 valgrind_backtrace_conflict="optimizations"
1960 valgrind_backtrace_deps="valgrind_valgrind_h"
1961
1962 # threading support
1963 atomics_gcc_if="sync_val_compare_and_swap"
1964 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1965 atomics_win32_if="MemoryBarrier"
1966 atomics_native_if_any="$ATOMICS_LIST"
1967 w32threads_deps="atomics_native"
1968 threads_if_any="$THREADS_LIST"
1969
1970 # subsystems
1971 cbs_h264_select="cbs golomb"
1972 cbs_h265_select="cbs golomb"
1973 dct_select="rdft"
1974 dirac_parse_select="golomb"
1975 error_resilience_select="me_cmp"
1976 faandct_deps="faan"
1977 faandct_select="fdctdsp"
1978 faanidct_deps="faan"
1979 faanidct_select="idctdsp"
1980 h264dsp_select="startcode"
1981 hevc_ps_select="golomb"
1982 intrax8_select="blockdsp idctdsp"
1983 mdct_select="fft"
1984 rdft_select="fft"
1985 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1986 mpeg_er_select="error_resilience"
1987 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1988 mpegaudiodsp_select="dct"
1989 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1990 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1991 vc1dsp_select="h264chroma qpeldsp startcode"
1992
1993 # decoders / encoders
1994 aac_decoder_select="adts_header imdct15 mdct sinewin"
1995 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1996 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1997 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1998 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1999 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2000 adpcm_g722_decoder_select="g722dsp"
2001 adpcm_g722_encoder_select="g722dsp"
2002 aic_decoder_select="golomb idctdsp"
2003 alac_encoder_select="lpc"
2004 als_decoder_select="bswapdsp"
2005 amrnb_decoder_select="lsp"
2006 amrwb_decoder_select="lsp"
2007 amv_decoder_select="sp5x_decoder"
2008 ape_decoder_select="bswapdsp"
2009 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2010 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2011 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2012 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2013 atrac1_decoder_select="mdct sinewin"
2014 atrac3_decoder_select="mdct"
2015 atrac3p_decoder_select="mdct sinewin"
2016 bink_decoder_select="blockdsp hpeldsp"
2017 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2018 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2019 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2020 clearvideo_decoder_select="idctdsp"
2021 cllc_decoder_select="bswapdsp"
2022 comfortnoise_encoder_select="lpc"
2023 cook_decoder_select="audiodsp mdct sinewin"
2024 cscd_decoder_select="lzo"
2025 cscd_decoder_suggest="zlib"
2026 dca_decoder_select="fmtconvert mdct"
2027 dds_decoder_select="texturedsp"
2028 dnxhd_decoder_select="blockdsp idctdsp"
2029 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2030 dvvideo_decoder_select="dvprofile idctdsp"
2031 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2032 dxa_decoder_deps="zlib"
2033 dxv_decoder_select="lzf texturedsp"
2034 eac3_decoder_select="ac3_decoder"
2035 eac3_encoder_select="ac3_encoder"
2036 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2037 eatgq_decoder_select="aandcttables idctdsp"
2038 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2039 exr_decoder_deps="zlib"
2040 ffv1_decoder_select="rangecoder"
2041 ffv1_encoder_select="rangecoder"
2042 ffvhuff_decoder_select="huffyuv_decoder"
2043 ffvhuff_encoder_select="huffyuv_encoder"
2044 fic_decoder_select="golomb"
2045 flac_decoder_select="flacdsp"
2046 flac_encoder_select="bswapdsp flacdsp lpc"
2047 flashsv_decoder_deps="zlib"
2048 flashsv_encoder_deps="zlib"
2049 flashsv2_decoder_deps="zlib"
2050 flv_decoder_select="h263_decoder"
2051 flv_encoder_select="h263_encoder"
2052 fourxm_decoder_select="blockdsp bswapdsp"
2053 fraps_decoder_select="bswapdsp huffman"
2054 g2m_decoder_deps="zlib"
2055 g2m_decoder_select="blockdsp idctdsp jpegtables"
2056 h261_decoder_select="mpeg_er mpegvideo"
2057 h261_encoder_select="aandcttables mpegvideoenc"
2058 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2059 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2060 h263i_decoder_select="h263_decoder"
2061 h263p_encoder_select="h263_encoder"
2062 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2063 h264_decoder_suggest="error_resilience"
2064 hap_decoder_select="snappy texturedsp"
2065 hap_encoder_deps="libsnappy"
2066 hap_encoder_select="texturedspenc"
2067 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2068 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2069 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2070 iac_decoder_select="imc_decoder"
2071 imc_decoder_select="bswapdsp fft mdct sinewin"
2072 indeo3_decoder_select="hpeldsp"
2073 indeo4_decoder_select="ividsp"
2074 indeo5_decoder_select="ividsp"
2075 interplay_video_decoder_select="hpeldsp"
2076 jpegls_decoder_select="mjpeg_decoder"
2077 jv_decoder_select="blockdsp"
2078 lagarith_decoder_select="huffyuvdsp"
2079 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2080 magicyuv_decoder_select="huffyuvdsp"
2081 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2082 metasound_decoder_select="lsp mdct sinewin"
2083 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2084 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2085 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2086 mjpegb_decoder_select="mjpeg_decoder"
2087 mlp_decoder_select="mlp_parser"
2088 motionpixels_decoder_select="bswapdsp"
2089 mp1_decoder_select="mpegaudio"
2090 mp1float_decoder_select="mpegaudio"
2091 mp2_decoder_select="mpegaudio"
2092 mp2float_decoder_select="mpegaudio"
2093 mp3_decoder_select="mpegaudio"
2094 mp3adu_decoder_select="mpegaudio"
2095 mp3adufloat_decoder_select="mpegaudio"
2096 mp3float_decoder_select="mpegaudio"
2097 mp3on4_decoder_select="mpegaudio"
2098 mp3on4float_decoder_select="mpegaudio"
2099 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2100 mpc8_decoder_select="mpegaudiodsp"
2101 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2102 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2103 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2104 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2105 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2106 mpeg4_encoder_select="h263_encoder"
2107 msa1_decoder_select="mss34dsp"
2108 msmpeg4v1_decoder_select="h263_decoder"
2109 msmpeg4v2_decoder_select="h263_decoder"
2110 msmpeg4v2_encoder_select="h263_encoder"
2111 msmpeg4v3_decoder_select="h263_decoder"
2112 msmpeg4v3_encoder_select="h263_encoder"
2113 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2114 mts2_decoder_select="mss34dsp"
2115 mxpeg_decoder_select="mjpeg_decoder"
2116 nellymoser_decoder_select="mdct sinewin"
2117 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2118 nuv_decoder_select="idctdsp lzo"
2119 on2avc_decoder_select="mdct"
2120 opus_decoder_deps="avresample"
2121 opus_decoder_select="imdct15"
2122 png_decoder_deps="zlib"
2123 png_encoder_deps="zlib"
2124 png_encoder_select="huffyuvencdsp"
2125 prores_decoder_select="idctdsp"
2126 prores_encoder_select="fdctdsp"
2127 qcelp_decoder_select="lsp"
2128 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2129 ra_144_encoder_select="audio_frame_queue lpc"
2130 ralf_decoder_select="golomb"
2131 rscc_decoder_deps="zlib"
2132 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2133 rv10_encoder_select="h263_encoder"
2134 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2135 rv20_encoder_select="h263_encoder"
2136 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2137 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2138 screenpresso_decoder_deps="zlib"
2139 sipr_decoder_select="lsp"
2140 sp5x_decoder_select="mjpeg_decoder"
2141 svq1_decoder_select="hpeldsp"
2142 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2143 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2144 svq3_decoder_suggest="zlib"
2145 tak_decoder_select="audiodsp"
2146 tdsc_decoder_deps="zlib"
2147 tdsc_decoder_select="mjpeg_decoder"
2148 theora_decoder_select="vp3_decoder"
2149 thp_decoder_select="mjpeg_decoder"
2150 tiff_decoder_suggest="zlib"
2151 tiff_encoder_suggest="zlib"
2152 truehd_decoder_select="mlp_decoder"
2153 truemotion2_decoder_select="bswapdsp"
2154 truespeech_decoder_select="bswapdsp"
2155 tscc_decoder_deps="zlib"
2156 txd_decoder_select="texturedsp"
2157 twinvq_decoder_select="mdct lsp sinewin"
2158 utvideo_decoder_select="bswapdsp huffyuvdsp"
2159 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2160 vble_decoder_select="huffyuvdsp"
2161 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2162 vc1image_decoder_select="vc1_decoder"
2163 vorbis_decoder_select="mdct"
2164 vorbis_encoder_select="mdct"
2165 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2166 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2167 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2168 vp6a_decoder_select="vp6_decoder"
2169 vp6f_decoder_select="vp6_decoder"
2170 vp7_decoder_select="h264pred videodsp vp8dsp"
2171 vp8_decoder_select="h264pred videodsp vp8dsp"
2172 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2173 webp_decoder_select="vp8_decoder"
2174 wmapro_decoder_select="mdct sinewin wma_freqs"
2175 wmav1_decoder_select="mdct sinewin wma_freqs"
2176 wmav1_encoder_select="mdct sinewin wma_freqs"
2177 wmav2_decoder_select="mdct sinewin wma_freqs"
2178 wmav2_encoder_select="mdct sinewin wma_freqs"
2179 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2180 wmv1_decoder_select="h263_decoder"
2181 wmv1_encoder_select="h263_encoder"
2182 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2183 wmv2_encoder_select="h263_encoder wmv2dsp"
2184 wmv3_decoder_select="vc1_decoder"
2185 wmv3image_decoder_select="wmv3_decoder"
2186 zerocodec_decoder_deps="zlib"
2187 zlib_decoder_deps="zlib"
2188 zlib_encoder_deps="zlib"
2189 zmbv_decoder_deps="zlib"
2190 zmbv_encoder_deps="zlib"
2191
2192 # hardware accelerators
2193 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2194 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2195 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2196 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2197
2198 h263_vaapi_hwaccel_deps="vaapi"
2199 h263_vaapi_hwaccel_select="h263_decoder"
2200 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2201 h264_cuvid_hwaccel_select="h264_decoder"
2202 h264_d3d11va_hwaccel_deps="d3d11va"
2203 h264_d3d11va_hwaccel_select="h264_decoder"
2204 h264_d3d11va2_hwaccel_deps="d3d11va"
2205 h264_d3d11va2_hwaccel_select="h264_decoder"
2206 h264_dxva2_hwaccel_deps="dxva2"
2207 h264_dxva2_hwaccel_select="h264_decoder"
2208 h264_mmal_hwaccel_deps="mmal"
2209 h264_qsv_hwaccel_deps="libmfx"
2210 h264_vaapi_hwaccel_deps="vaapi"
2211 h264_vaapi_hwaccel_select="h264_decoder"
2212 h264_vda_hwaccel_deps="vda"
2213 h264_vda_hwaccel_select="h264_decoder"
2214 h264_vda_old_hwaccel_deps="vda"
2215 h264_vda_old_hwaccel_select="h264_decoder"
2216 h264_vdpau_hwaccel_deps="vdpau"
2217 h264_vdpau_hwaccel_select="h264_decoder"
2218 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2219 hevc_cuvid_hwaccel_select="hevc_decoder"
2220 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2221 hevc_d3d11va_hwaccel_select="hevc_decoder"
2222 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2223 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2224 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2225 hevc_dxva2_hwaccel_select="hevc_decoder"
2226 hevc_qsv_hwaccel_deps="libmfx"
2227 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2228 hevc_vaapi_hwaccel_select="hevc_decoder"
2229 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2230 hevc_vdpau_hwaccel_select="hevc_decoder"
2231 mpeg1_vdpau_hwaccel_deps="vdpau"
2232 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2233 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2234 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2235 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2236 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_dxva2_hwaccel_deps="dxva2"
2238 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_mmal_hwaccel_deps="mmal"
2240 mpeg2_qsv_hwaccel_deps="libmfx"
2241 mpeg2_vaapi_hwaccel_deps="vaapi"
2242 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2243 mpeg2_vdpau_hwaccel_deps="vdpau"
2244 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2245 mpeg4_vaapi_hwaccel_deps="vaapi"
2246 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2247 mpeg4_vdpau_hwaccel_deps="vdpau"
2248 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2249 vc1_d3d11va_hwaccel_deps="d3d11va"
2250 vc1_d3d11va_hwaccel_select="vc1_decoder"
2251 vc1_d3d11va2_hwaccel_deps="d3d11va"
2252 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2253 vc1_dxva2_hwaccel_deps="dxva2"
2254 vc1_dxva2_hwaccel_select="vc1_decoder"
2255 vc1_mmal_hwaccel_deps="mmal"
2256 vc1_qsv_hwaccel_deps="libmfx"
2257 vc1_vaapi_hwaccel_deps="vaapi"
2258 vc1_vaapi_hwaccel_select="vc1_decoder"
2259 vc1_vdpau_hwaccel_deps="vdpau"
2260 vc1_vdpau_hwaccel_select="vc1_decoder"
2261 vp8_qsv_hwaccel_deps="libmfx"
2262 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2263 vp8_vaapi_hwaccel_select="vp8_decoder"
2264 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2265 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2266 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2267 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2268 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2269
2270 # hardware-accelerated codecs
2271 nvenc_deps_any="libdl LoadLibrary"
2272 omx_deps="libdl pthreads"
2273 omx_rpi_select="omx"
2274 qsv_deps="libmfx"
2275 qsvdec_select="qsv"
2276 qsvenc_select="qsv"
2277 vaapi_encode_deps="vaapi"
2278
2279 hwupload_cuda_filter_deps="cuda"
2280 scale_npp_filter_deps="cuda libnpp"
2281
2282 h264_mmal_decoder_deps="mmal"
2283 h264_nvenc_encoder_deps="nvenc"
2284 h264_omx_encoder_deps="omx"
2285 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2286 h264_qsv_encoder_select="qsvenc"
2287 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2288 h264_vaapi_encoder_select="vaapi_encode golomb"
2289 hevc_nvenc_encoder_deps="nvenc"
2290 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2291 hevc_qsv_encoder_select="hevc_ps qsvenc"
2292 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2293 hevc_vaapi_encoder_select="vaapi_encode golomb"
2294 mjpeg_qsv_encoder_deps="libmfx"
2295 mjpeg_qsv_encoder_select="qsvenc"
2296 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2297 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2298 mpeg2_mmal_decoder_deps="mmal"
2299 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2300 mpeg2_qsv_encoder_select="qsvenc"
2301 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2302 mpeg2_vaapi_encoder_select="vaapi_encode"
2303 mpeg4_omx_encoder_deps="omx"
2304 vc1_mmal_decoder_deps="mmal"
2305 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2306 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2307 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2308 vp8_vaapi_encoder_select="vaapi_encode"
2309 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2310 vp9_vaapi_encoder_select="vaapi_encode"
2311
2312 nvenc_h264_encoder_select="h264_nvenc_encoder"
2313 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2314
2315 # parsers
2316 aac_parser_select="adts_header"
2317 h264_parser_select="golomb h264dsp h264parse"
2318 hevc_parser_select="hevc_ps"
2319 mpegaudio_parser_select="mpegaudioheader"
2320 mpegvideo_parser_select="mpegvideo"
2321 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2322 vc1_parser_select="vc1dsp"
2323
2324 # bitstream_filters
2325 aac_adtstoasc_bsf_select="adts_header"
2326 h264_metadata_bsf_select="cbs_h264"
2327 mjpeg2jpeg_bsf_select="jpegtables"
2328 trace_headers_bsf_select="cbs_h264 cbs_h265"
2329
2330 # external libraries
2331 avisynth_deps="LoadLibrary"
2332 avxsynth_deps="libdl"
2333 avisynth_demuxer_deps_any="avisynth avxsynth"
2334 avisynth_demuxer_select="riffdec"
2335 libdcadec_decoder_deps="libdcadec"
2336 libfaac_encoder_deps="libfaac"
2337 libfaac_encoder_select="audio_frame_queue"
2338 libfdk_aac_decoder_deps="libfdk_aac"
2339 libfdk_aac_encoder_deps="libfdk_aac"
2340 libfdk_aac_encoder_select="audio_frame_queue"
2341 libgsm_decoder_deps="libgsm"
2342 libgsm_encoder_deps="libgsm"
2343 libgsm_ms_decoder_deps="libgsm"
2344 libgsm_ms_encoder_deps="libgsm"
2345 libilbc_decoder_deps="libilbc"
2346 libilbc_encoder_deps="libilbc"
2347 libkvazaar_encoder_deps="libkvazaar"
2348 libmp3lame_encoder_deps="libmp3lame"
2349 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2350 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2351 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2352 libopencore_amrnb_encoder_select="audio_frame_queue"
2353 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2354 libopenh264_decoder_deps="libopenh264"
2355 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2356 libopenh264_encoder_deps="libopenh264"
2357 libopenjpeg_decoder_deps="libopenjpeg"
2358 libopenjpeg_encoder_deps="libopenjpeg"
2359 libopus_decoder_deps="libopus"
2360 libopus_encoder_deps="libopus"
2361 libopus_encoder_select="audio_frame_queue"
2362 libschroedinger_decoder_deps="libschroedinger"
2363 libschroedinger_encoder_deps="libschroedinger"
2364 libspeex_decoder_deps="libspeex"
2365 libspeex_encoder_deps="libspeex"
2366 libspeex_encoder_select="audio_frame_queue"
2367 libtheora_encoder_deps="libtheora"
2368 libtwolame_encoder_deps="libtwolame"
2369 libvo_aacenc_encoder_deps="libvo_aacenc"
2370 libvo_aacenc_encoder_select="audio_frame_queue"
2371 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2372 libvorbis_encoder_deps="libvorbis"
2373 libvorbis_encoder_select="audio_frame_queue"
2374 libvpx_vp8_decoder_deps="libvpx"
2375 libvpx_vp8_encoder_deps="libvpx"
2376 libvpx_vp9_decoder_deps="libvpx"
2377 libvpx_vp9_encoder_deps="libvpx"
2378 libwavpack_encoder_deps="libwavpack"
2379 libwavpack_encoder_select="audio_frame_queue"
2380 libwebp_encoder_deps="libwebp"
2381 libx262_encoder_deps="libx262"
2382 libx264_encoder_deps="libx264"
2383 libx265_encoder_deps="libx265"
2384 libxavs_encoder_deps="libxavs"
2385 libxvid_encoder_deps="libxvid mkstemp"
2386
2387 # demuxers / muxers
2388 ac3_demuxer_select="ac3_parser"
2389 asf_demuxer_select="riffdec"
2390 asf_muxer_select="riffenc"
2391 asf_stream_muxer_select="asf_muxer"
2392 avi_demuxer_select="iso_media riffdec"
2393 avi_muxer_select="riffenc"
2394 caf_demuxer_select="iso_media riffdec"
2395 dash_muxer_select="mp4_muxer"
2396 dirac_demuxer_select="dirac_parser"
2397 dv_demuxer_select="dvprofile"
2398 dv_muxer_select="dvprofile"
2399 dxa_demuxer_select="riffdec"
2400 eac3_demuxer_select="ac3_parser"
2401 f4v_muxer_select="mov_muxer"
2402 flac_demuxer_select="flac_parser"
2403 hds_muxer_select="flv_muxer"
2404 hls_muxer_select="mpegts_muxer"
2405 ipod_muxer_select="mov_muxer"
2406 ismv_muxer_select="mov_muxer"
2407 matroska_audio_muxer_select="matroska_muxer"
2408 matroska_demuxer_select="iso_media riffdec"
2409 matroska_demuxer_suggest="bzlib lzo zlib"
2410 matroska_muxer_select="iso_media riffenc"
2411 mmf_muxer_select="riffenc"
2412 mov_demuxer_select="iso_media riffdec"
2413 mov_demuxer_suggest="zlib"
2414 mov_muxer_select="iso_media riffenc rtpenc_chain"
2415 mp3_demuxer_select="mpegaudio_parser"
2416 mp3_muxer_select="mpegaudioheader"
2417 mp4_muxer_select="mov_muxer"
2418 mpegts_demuxer_select="iso_media"
2419 mpegts_muxer_select="adts_muxer latm_muxer"
2420 mpegtsraw_demuxer_select="mpegts_demuxer"
2421 mxf_d10_muxer_select="mxf_muxer"
2422 nut_muxer_select="riffenc"
2423 nuv_demuxer_select="riffdec"
2424 oga_muxer_select="ogg_muxer"
2425 ogg_demuxer_select="dirac_parse"
2426 opus_muxer_select="ogg_muxer"
2427 psp_muxer_select="mov_muxer"
2428 rtp_demuxer_select="sdp_demuxer"
2429 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2430 rtsp_demuxer_select="http_protocol rtpdec"
2431 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2432 sap_demuxer_select="sdp_demuxer"
2433 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2434 sdp_demuxer_select="rtpdec"
2435 smoothstreaming_muxer_select="ismv_muxer"
2436 spdif_demuxer_select="adts_header"
2437 spdif_muxer_select="adts_header"
2438 spx_muxer_select="ogg_muxer"
2439 swf_demuxer_suggest="zlib"
2440 tak_demuxer_select="tak_parser"
2441 tg2_muxer_select="mov_muxer"
2442 tgp_muxer_select="mov_muxer"
2443 w64_demuxer_select="wav_demuxer"
2444 wav_demuxer_select="riffdec"
2445 wav_muxer_select="riffenc"
2446 webm_muxer_select="iso_media riffenc"
2447 wtv_demuxer_select="mpegts_demuxer riffdec"
2448 xmv_demuxer_select="riffdec"
2449 xwma_demuxer_select="riffdec"
2450
2451 # indevs / outdevs
2452 alsa_indev_deps="alsa"
2453 alsa_outdev_deps="alsa"
2454 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2455 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2456 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2457 dv1394_indev_deps="dv1394"
2458 dv1394_indev_select="dv_demuxer"
2459 fbdev_indev_deps="linux_fb_h"
2460 jack_indev_deps="libjack"
2461 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2462 libcdio_indev_deps="libcdio"
2463 libdc1394_indev_deps="libdc1394"
2464 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2465 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2466 pulse_indev_deps="libpulse"
2467 sndio_indev_deps="sndio"
2468 sndio_outdev_deps="sndio"
2469 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2470 vfwcap_indev_deps="vfw32 vfwcap_defines"
2471 xcbgrab_indev_deps="libxcb libxcb_shape"
2472 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2473
2474 # protocols
2475 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2476 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2477 ffrtmpcrypt_protocol_select="tcp_protocol"
2478 ffrtmphttp_protocol_conflict="librtmp_protocol"
2479 ffrtmphttp_protocol_select="http_protocol"
2480 gopher_protocol_select="network"
2481 http_protocol_select="tcp_protocol"
2482 http_protocol_suggest="zlib"
2483 httpproxy_protocol_select="tcp_protocol"
2484 httpproxy_protocol_suggest="zlib"
2485 https_protocol_select="tls_protocol"
2486 https_protocol_suggest="zlib"
2487 icecast_protocol_select="http_protocol"
2488 librtmp_protocol_deps="librtmp"
2489 librtmpe_protocol_deps="librtmp"
2490 librtmps_protocol_deps="librtmp"
2491 librtmpt_protocol_deps="librtmp"
2492 librtmpte_protocol_deps="librtmp"
2493 mmsh_protocol_select="http_protocol"
2494 mmst_protocol_select="network"
2495 rtmp_protocol_conflict="librtmp_protocol"
2496 rtmp_protocol_select="tcp_protocol"
2497 rtmp_protocol_suggest="zlib"
2498 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2499 rtmpe_protocol_suggest="zlib"
2500 rtmps_protocol_conflict="librtmp_protocol"
2501 rtmps_protocol_select="tls_protocol"
2502 rtmps_protocol_suggest="zlib"
2503 rtmpt_protocol_select="ffrtmphttp_protocol"
2504 rtmpt_protocol_suggest="zlib"
2505 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2506 rtmpte_protocol_suggest="zlib"
2507 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2508 rtmpts_protocol_suggest="zlib"
2509 rtp_protocol_select="udp_protocol"
2510 sctp_protocol_deps="struct_sctp_event_subscribe"
2511 sctp_protocol_select="network"
2512 srtp_protocol_select="rtp_protocol srtp"
2513 tcp_protocol_select="network"
2514 tls_protocol_deps_any="gnutls openssl"
2515 tls_protocol_select="tcp_protocol"
2516 udp_protocol_select="network"
2517 unix_protocol_deps="sys_un_h"
2518 unix_protocol_select="network"
2519
2520 # filters
2521 asyncts_filter_deps="avresample"
2522 blackframe_filter_deps="gpl"
2523 boxblur_filter_deps="gpl"
2524 bs2b_filter_deps="libbs2b"
2525 cropdetect_filter_deps="gpl"
2526 deinterlace_qsv_filter_deps="libmfx"
2527 deinterlace_vaapi_filter_deps="vaapi"
2528 delogo_filter_deps="gpl"
2529 drawtext_filter_deps="libfreetype"
2530 drawtext_filter_suggest="libfontconfig"
2531 frei0r_filter_deps="frei0r libdl"
2532 frei0r_src_filter_deps="frei0r libdl"
2533 hdcd_filter_deps="libhdcd"
2534 hqdn3d_filter_deps="gpl"
2535 interlace_filter_deps="gpl"
2536 movie_filter_deps="avcodec avformat"
2537 ocv_filter_deps="libopencv"
2538 resample_filter_deps="avresample"
2539 scale_filter_deps="swscale"
2540 scale_qsv_filter_deps="libmfx"
2541 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2542
2543 # examples
2544 decode_audio_example_deps="avcodec avutil"
2545 decode_video_example_deps="avcodec avutil"
2546 encode_audio_example_deps="avcodec avutil"
2547 encode_video_example_deps="avcodec avutil"
2548 filter_audio_example_deps="avfilter avutil"
2549 metadata_example_deps="avformat avutil"
2550 output_example_deps="avcodec avformat avresample avutil swscale"
2551 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2552 transcode_aac_example_deps="avcodec avformat avresample"
2553
2554 # EXTRALIBS_LIST
2555 cpu_init_extralibs="pthreads_extralibs"
2556 cws2fws_extralibs="zlib_extralibs"
2557
2558 # libraries, in linking order
2559 avcodec_deps="avutil"
2560 avcodec_select="null_bsf"
2561 avdevice_deps="avformat avcodec avutil"
2562 avfilter_deps="avutil"
2563 avformat_deps="avcodec avutil"
2564 avformat_suggest="network"
2565 avresample_deps="avutil"
2566 swscale_deps="avutil"
2567
2568 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2569 avdevice_extralibs="libm_extralibs"
2570 avformat_extralibs="libm_extralibs"
2571 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2572 avresample_extralibs="libm_extralibs"
2573 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"
2574 swscale_extralibs="libm_extralibs"
2575
2576 # programs
2577 avconv_deps="avcodec avfilter avformat avresample swscale"
2578 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2579 fps_filter null_filter resample_filter scale_filter
2580 trim_filter"
2581 avconv_suggest="psapi shell32"
2582 avplay_deps="avcodec avfilter avformat avresample sdl"
2583 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2584 avplay_suggest="shell32"
2585 avprobe_deps="avcodec avformat"
2586 avprobe_suggest="shell32"
2587
2588 # documentation
2589 pod2man_deps="doc"
2590 texi2html_deps="doc"
2591
2592 # default parameters
2593
2594 logfile="avbuild/config.log"
2595
2596 # installation paths
2597 prefix_default="/usr/local"
2598 bindir_default='${prefix}/bin'
2599 datadir_default='${prefix}/share/avconv'
2600 docdir_default='${prefix}/share/doc/libav'
2601 incdir_default='${prefix}/include'
2602 libdir_default='${prefix}/lib'
2603 mandir_default='${prefix}/share/man'
2604 shlibdir_default="$libdir_default"
2605
2606 # toolchain
2607 ar_default="ar"
2608 cc_default="gcc"
2609 host_cc_default="gcc"
2610 x86asmexe_default="nasm"
2611 ln_s="ln -s -f"
2612 nm_default="nm -g"
2613 pkg_config_default=pkg-config
2614 ranlib="ranlib"
2615 strip="strip"
2616 version_script='--version-script'
2617
2618 # machine
2619 arch_default=$(uname -m)
2620 cpu="generic"
2621 intrinsics="none"
2622
2623 # OS
2624 target_os_default=$(tolower $(uname -s))
2625 host_os=$target_os_default
2626
2627 # configurable options
2628 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2629
2630 enable asm
2631 enable debug
2632 enable doc
2633 enable faan faandct faanidct
2634 enable optimizations
2635 enable safe_bitstream_reader
2636 enable static
2637 enable swscale_alpha
2638 enable valgrind_backtrace
2639
2640 # By default, enable only those hwaccels that have no external dependencies.
2641 enable d3d11va dxva2 vda vdpau
2642
2643 # internal components are enabled by default
2644 enable $EXTRALIBS_LIST
2645
2646 # Avoid external, non-system, libraries getting enabled by dependency resolution
2647 disable $EXTERNAL_LIBRARY_LIST
2648
2649 # build settings
2650 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2651 LIBPREF="lib"
2652 LIBSUF=".a"
2653 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2654 SLIBPREF="lib"
2655 SLIBSUF=".so"
2656 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2657 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2658 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2659 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2660 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2661 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2662 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2663
2664 asflags_filter=echo
2665 cflags_filter=echo
2666 ldflags_filter=echo
2667
2668 AS_C='-c'
2669 AS_O='-o $@'
2670 CC_C='-c'
2671 CC_E='-E -o $@'
2672 CC_O='-o $@'
2673 OBJCC_C='-c'
2674 OBJCC_E='-E -o $@'
2675 OBJCC_O='-o $@'
2676 X86ASM_O='-o $@'
2677 LD_O='-o $@'
2678 LD_LIB='-l%'
2679 LD_PATH='-L'
2680 HOSTCC_C='-c'
2681 HOSTCC_E='-E -o $@'
2682 HOSTCC_O='-o $@'
2683 HOSTLD_O='-o $@'
2684
2685 host_extralibs='-lm'
2686 host_cflags_filter=echo
2687 host_ldflags_filter=echo
2688
2689 target_path='$(CURDIR)'
2690
2691 # since the object filename is not given with the -MM flag, the compiler
2692 # is only able to print the basename, and we must add the path ourselves
2693 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2694 DEPFLAGS='-MM'
2695
2696 mkdir -p avbuild
2697
2698 # find source path
2699 if test -f configure; then
2700 source_path=.
2701 else
2702 source_path=$(cd $(dirname "$0"); pwd)
2703 echo "$source_path" | grep -q '[[:blank:]]' &&
2704 die "Out of tree builds are impossible with whitespace in source path."
2705 test -e "$source_path/config.h" &&
2706 die "Out of tree builds are impossible with config.h in source dir."
2707 fi
2708
2709 for v in "$@"; do
2710 r=${v#*=}
2711 l=${v%"$r"}
2712 r=$(sh_quote "$r")
2713 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2714 done
2715
2716 find_things(){
2717 thing=$1
2718 pattern=$2
2719 file=$source_path/$3
2720 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2721 }
2722
2723 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2724 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2725 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2726 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2727 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2728 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2729 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2730 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2731 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2732
2733 find_things_extern(){
2734 thing=$1
2735 pattern=$2
2736 file=$source_path/$3
2737 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2738 }
2739
2740 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2741 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2742
2743 AVCODEC_COMPONENTS_LIST="
2744 $BSF_LIST
2745 $DECODER_LIST
2746 $ENCODER_LIST
2747 $HWACCEL_LIST
2748 $PARSER_LIST
2749 "
2750
2751 AVDEVICE_COMPONENTS_LIST="
2752 $INDEV_LIST
2753 $OUTDEV_LIST
2754 "
2755
2756 AVFILTER_COMPONENTS_LIST="
2757 $FILTER_LIST
2758 "
2759
2760 AVFORMAT_COMPONENTS_LIST="
2761 $DEMUXER_LIST
2762 $MUXER_LIST
2763 $PROTOCOL_LIST
2764 "
2765
2766 ALL_COMPONENTS="
2767 $AVCODEC_COMPONENTS_LIST
2768 $AVDEVICE_COMPONENTS_LIST
2769 $AVFILTER_COMPONENTS_LIST
2770 $AVFORMAT_COMPONENTS_LIST
2771 "
2772
2773 for n in $COMPONENT_LIST; do
2774 v=$(toupper ${n%s})_LIST
2775 eval enable \$$v
2776 eval ${n}_if_any="\$$v"
2777 done
2778
2779 enable $ARCH_EXT_LIST
2780
2781 die_unknown(){
2782 echo "Unknown option \"$1\"."
2783 echo "See $0 --help for available options."
2784 exit 1
2785 }
2786
2787 print_3_columns() {
2788 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2789 }
2790
2791 show_list() {
2792 suffix=_$1
2793 shift
2794 echo $* | sed s/$suffix//g | print_3_columns
2795 exit 0
2796 }
2797
2798 rand_list(){
2799 IFS=', '
2800 set -- $*
2801 unset IFS
2802 for thing; do
2803 comp=${thing%:*}
2804 prob=${thing#$comp}
2805 prob=${prob#:}
2806 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2807 echo "prob ${prob:-0.5}"
2808 printf '%s\n' $comp
2809 done
2810 }
2811
2812 do_random(){
2813 action=$1
2814 shift
2815 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2816 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2817 }
2818
2819 for opt do
2820 optval="${opt#*=}"
2821 case "$opt" in
2822 --extra-ldflags=*)
2823 add_ldflags $optval
2824 ;;
2825 --extra-ldexeflags=*)
2826 add_ldexeflags $optval
2827 ;;
2828 --extra-ldsoflags=*)
2829 add_ldsoflags $optval
2830 ;;
2831 --extra-libs=*)
2832 add_extralibs $optval
2833 ;;
2834 --disable-devices)
2835 disable $INDEV_LIST $OUTDEV_LIST
2836 ;;
2837 --enable-debug=*)
2838 debuglevel="$optval"
2839 ;;
2840 --disable-programs)
2841 disable $PROGRAM_LIST
2842 ;;
2843 --disable-everything)
2844 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2845 ;;
2846 --disable-all)
2847 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2848 disable $LIBRARY_LIST $PROGRAM_LIST doc
2849 ;;
2850 --enable-random|--disable-random)
2851 action=${opt%%-random}
2852 do_random ${action#--} $COMPONENT_LIST
2853 ;;
2854 --enable-random=*|--disable-random=*)
2855 action=${opt%%-random=*}
2856 do_random ${action#--} $optval
2857 ;;
2858 --enable-*=*|--disable-*=*)
2859 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2860 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2861 eval list=\$$(toupper $thing)_LIST
2862 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2863 $action $(filter "$name" $list)
2864 ;;
2865 --enable-avserver|--disable-avserver*)
2866 warn "avserver has been removed, the ${opt} option is only"\
2867 "provided for compatibility and will be removed in the future"
2868 ;;
2869 --enable-yasm|--disable-yasm)
2870 warn "The ${opt} option is only provided for compatibility and will be\n"\
2871 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2872 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2873 ;;
2874 --enable-?*|--disable-?*)
2875 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2876 if is_in $option $COMPONENT_LIST; then
2877 test $action = disable && action=unset
2878 eval $action \$$(toupper ${option%s})_LIST
2879 elif is_in $option $CMDLINE_SELECT; then
2880 $action $option
2881 else
2882 die_unknown $opt
2883 fi
2884 ;;
2885 --list-*)
2886 NAME="${opt#--list-}"
2887 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2888 NAME=${NAME%s}
2889 eval show_list $NAME \$$(toupper $NAME)_LIST
2890 ;;
2891 --help|-h) show_help
2892 ;;
2893 --quiet|-q) quiet=yes
2894 ;;
2895 *)
2896 optname="${opt%%=*}"
2897 optname="${optname#--}"
2898 optname=$(echo "$optname" | sed 's/-/_/g')
2899 if is_in $optname $CMDLINE_SET; then
2900 eval $optname='$optval'
2901 elif is_in $optname $CMDLINE_APPEND; then
2902 append $optname "$optval"
2903 else
2904 die_unknown $opt
2905 fi
2906 ;;
2907 esac
2908 done
2909
2910 for e in $env; do
2911 eval "export $e"
2912 done
2913
2914 disabled logging && logfile=/dev/null
2915
2916 # Die early if licensing-related configure options are incompatible.
2917 die_license_disabled() {
2918 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2919 }
2920
2921 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2922 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2923 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2924
2925 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2926
2927 enabled_all gnutls openssl &&
2928 die "GnuTLS and OpenSSL must not be enabled at the same time."
2929
2930 # Disable all the library-specific components if the library itself
2931 # is disabled, see AVCODEC_LIST and following _LIST variables.
2932
2933 disable_components(){
2934 disabled ${1} && disable $(
2935 eval components="\$$(toupper ${1})_COMPONENTS"
2936 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2937 )
2938 }
2939
2940 map 'disable_components $v' $LIBRARY_LIST
2941
2942 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2943 set >> $logfile
2944
2945 case "$toolchain" in
2946 *-asan)
2947 cc_default="${toolchain%-asan}"
2948 add_cflags -fsanitize=address
2949 add_ldflags -fsanitize=address
2950 ;;
2951 *-msan)
2952 cc_default="${toolchain%-msan}"
2953 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2954 add_ldflags -fsanitize=memory
2955 ;;
2956 *-tsan)
2957 cc_default="${toolchain%-tsan}"
2958 add_cflags -fsanitize=thread -fPIE
2959 add_ldflags -fsanitize=thread -pie
2960 case "$toolchain" in
2961 gcc-tsan)
2962 add_cflags -fPIC
2963 add_ldflags -fPIC
2964 ;;
2965 esac
2966 ;;
2967 *-usan)
2968 cc_default="${toolchain%-usan}"
2969 add_cflags -fsanitize=undefined
2970 add_ldflags -fsanitize=undefined
2971 case "$toolchain" in
2972 clang-usan)
2973 add_cflags -O1
2974 ;;
2975 esac
2976 ;;
2977 valgrind-*)
2978 target_exec_default="valgrind"
2979 case "$toolchain" in
2980 valgrind-massif)
2981 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2982 ;;
2983 valgrind-memcheck)
2984 target_exec_args="--track-origins=yes --leak-check=full"
2985 ;;
2986 esac
2987 ;;
2988 msvc)
2989 # Check whether the current MSVC version needs the C99 converter.
2990 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2991 # support enough of C99 to build libav. Default to the new
2992 # behaviour if the regexp was unable to match anything, since this
2993 # successfully parses the version number of existing supported
2994 # versions that require the converter (MSVC 2010 and 2012).
2995 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2996 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2997 cc_default="cl"
2998 else
2999 cc_default="c99wrap cl"
3000 fi
3001 ld_default="$source_path/compat/windows/mslink"
3002 nm_default="dumpbin -symbols"
3003 ar_default="lib"
3004 case "$arch" in
3005 arm*)
3006 as_default="armasm"
3007 ;;
3008 esac
3009 target_os_default="win32"
3010 # Use a relative path for TMPDIR. This makes sure all the
3011 # ffconf temp files are written with a relative path, avoiding
3012 # issues with msys/win32 path conversion for MSVC parameters
3013 # such as -Fo<file> or -out:<file>.
3014 TMPDIR=.
3015 ;;
3016 icl)
3017 cc_default="icl"
3018 ld_default="xilink"
3019 nm_default="dumpbin -symbols"
3020 ar_default="xilib"
3021 target_os_default="win32"
3022 TMPDIR=.
3023 ;;
3024 gcov)
3025 add_cflags -fprofile-arcs -ftest-coverage
3026 add_ldflags -fprofile-arcs -ftest-coverage
3027 ;;
3028 llvm-cov)
3029 add_cflags -fprofile-arcs -ftest-coverage
3030 add_ldflags --coverage
3031 ;;
3032 hardened)
3033 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3034 add_cflags -fno-strict-overflow -fstack-protector-all
3035 add_ldflags -Wl,-z,relro -Wl,-z,now
3036 ;;
3037 ?*)
3038 die "Unknown toolchain $toolchain"
3039 ;;
3040 esac
3041
3042 test -n "$cross_prefix" && enable cross_compile
3043
3044 if enabled cross_compile; then
3045 test -n "$arch" && test -n "$target_os" ||
3046 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3047 fi
3048
3049 ar_default="${cross_prefix}${ar_default}"
3050 cc_default="${cross_prefix}${cc_default}"
3051 objcc_default="${cross_prefix}${objcc_default}"
3052 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3053 nm_default="${cross_prefix}${nm_default}"
3054 pkg_config_default="${cross_prefix}${pkg_config_default}"
3055 ranlib="${cross_prefix}${ranlib}"
3056 strip="${cross_prefix}${strip}"
3057
3058 sysinclude_default="${sysroot}/usr/include"
3059
3060 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3061 enabled cross_compile || host_cc_default=$cc
3062 set_default host_cc
3063
3064 if ! $pkg_config --version >/dev/null 2>&1; then
3065 warn "$pkg_config not found, library detection may fail."
3066 pkg_config=false
3067 fi
3068
3069 exesuf() {
3070 case $1 in
3071 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3072 esac
3073 }
3074
3075 EXESUF=$(exesuf $target_os)
3076 HOSTEXESUF=$(exesuf $host_os)
3077
3078 # set temporary file name
3079 : ${TMPDIR:=$TEMPDIR}
3080 : ${TMPDIR:=$TMP}
3081 : ${TMPDIR:=/tmp}
3082
3083 if ! check_cmd mktemp -u XXXXXX; then
3084 # simple replacement for missing mktemp
3085 # NOT SAFE FOR GENERAL USE
3086 mktemp(){
3087 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3088 echo "$tmpname"
3089 mkdir "$tmpname"
3090 }
3091 fi
3092
3093 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3094 die "Unable to create temporary directory in $TMPDIR."
3095
3096 tmpfile(){
3097 tmp="${AVTMPDIR}/test"$2
3098 (set -C; exec > $tmp) 2> /dev/null ||
3099 die "Unable to create temporary file in $AVTMPDIR."
3100 eval $1=$tmp
3101 }
3102
3103 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3104 trap 'exit 2' INT
3105
3106 tmpfile TMPASM .asm
3107 tmpfile TMPC .c
3108 tmpfile TMPE $EXESUF
3109 tmpfile TMPH .h
3110 tmpfile TMPO .o
3111 tmpfile TMPS .S
3112 tmpfile TMPSH .sh
3113 tmpfile TMPV .ver
3114
3115 unset -f mktemp
3116
3117 chmod +x $TMPE
3118
3119 # make sure we can execute files in $TMPDIR
3120 cat > $TMPSH 2>> $logfile <<EOF
3121 #! /bin/sh
3122 EOF
3123 chmod +x $TMPSH >> $logfile 2>&1
3124 if ! $TMPSH >> $logfile 2>&1; then
3125 cat <<EOF
3126 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3127 variable to another directory and make sure that it is not mounted noexec.
3128 EOF
3129 die "Sanity test failed."
3130 fi
3131
3132 armasm_flags(){
3133 for flag; do
3134 case $flag in
3135 # Filter out MSVC cl.exe options from cflags that shouldn't
3136 # be passed to gas-preprocessor
3137 -M[TD]*) ;;
3138 *) echo $flag ;;
3139 esac
3140 done
3141 }
3142
3143 ccc_flags(){
3144 for flag; do
3145 case $flag in
3146 -std=c99) echo -c99 ;;
3147 -mcpu=*) echo -arch ${flag#*=} ;;
3148 -mieee) echo -ieee ;;
3149 -O*|-fast) echo $flag ;;
3150 -fno-math-errno) echo -assume nomath_errno ;;
3151 -g) echo -g3 ;;
3152 -Wall) echo -msg_enable level2 ;;
3153 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3154 -Wl,*) echo $flag ;;
3155 -f*|-W*) ;;
3156 *) echo $flag ;;
3157 esac
3158 done
3159 }
3160
3161 cparser_flags(){
3162 for flag; do
3163 case $flag in
3164 -Wno-switch) echo -Wno-switch-enum ;;
3165 -Wno-format-zero-length) ;;
3166 -Wdisabled-optimization) ;;
3167 -Wno-pointer-sign) echo -Wno-other ;;
3168 *) echo $flag ;;
3169 esac
3170 done
3171 }
3172
3173 msvc_common_flags(){
3174 for flag; do
3175 case $flag in
3176 # In addition to specifying certain flags under the compiler
3177 # specific filters, they must be specified here as well or else the
3178 # generic catch all at the bottom will print the original flag.
3179 -Wall) ;;
3180 -Wextra) ;;
3181 -std=c99) ;;
3182 # Common flags
3183 -fomit-frame-pointer) ;;
3184 -g) echo -Z7 ;;
3185 -fno-math-errno) ;;
3186 -fno-common) ;;
3187 -fno-signed-zeros) ;;
3188 -fPIC) ;;
3189 -mthumb) ;;
3190 -march=*) ;;
3191 -lz) echo zlib.lib ;;
3192 -lx264) echo libx264.lib ;;
3193 -l*) echo ${flag#-l}.lib ;;
3194 -L*) echo -libpath:${flag#-L} ;;
3195 *) echo $flag ;;
3196 esac
3197 done
3198 }
3199
3200 msvc_flags(){
3201 msvc_common_flags "$@"
3202 for flag; do
3203 case $flag in
3204 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3205 -wd4554 ;;
3206 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3207 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3208 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3209 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3210 esac
3211 done
3212 }
3213
3214 icl_flags(){
3215 msvc_common_flags "$@"
3216 for flag; do
3217 case $flag in
3218 # Despite what Intel's documentation says -Wall, which is supported
3219 # on Windows, does enable remarks so disable them here.
3220 -Wall) echo $flag -Qdiag-disable:remark ;;
3221 -std=c99) echo -Qstd=c99 ;;
3222 esac
3223 done
3224 }
3225
3226 pgi_flags(){
3227 for flag; do
3228 case $flag in
3229 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3230 -fomit-frame-pointer) echo -Mnoframe ;;
3231 -g) echo -gopt ;;
3232 *) echo $flag ;;
3233 esac
3234 done
3235 }
3236
3237 suncc_flags(){
3238 for flag; do
3239 case $flag in
3240 -march=*|-mcpu=*)
3241 case "${flag#*=}" in
3242 native) echo -xtarget=native ;;
3243 v9|niagara) echo -xarch=sparc ;;
3244 ultrasparc) echo -xarch=sparcvis ;;
3245 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3246 i586|pentium) echo -xchip=pentium ;;
3247 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3248 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3249 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3250 pentium4*) echo -xtarget=pentium4 ;;
3251 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3252 *-sse3) echo -xarch=sse3 ;;
3253 core2) echo -xarch=ssse3 -xchip=core2 ;;
3254 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3255 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3256 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3257 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3258 k8|opteron|athlon64|athlon-fx)
3259 echo -xarch=sse2a ;;
3260 athlon*) echo -xarch=pentium_proa ;;
3261 esac
3262 ;;
3263 -std=c99) echo -xc99 ;;
3264 -fomit-frame-pointer) echo -xregs=frameptr ;;
3265 -fPIC) echo -KPIC -xcode=pic32 ;;
3266 -W*,*) echo $flag ;;
3267 -f*-*|-W*|-mimpure-text) ;;
3268 -shared) echo -G ;;
3269 *) echo $flag ;;
3270 esac
3271 done
3272 }
3273
3274 tms470_flags(){
3275 for flag; do
3276 case $flag in
3277 -march=*|-mcpu=*)
3278 case "${flag#*=}" in
3279 armv7-a|cortex-a*) echo -mv=7a8 ;;
3280 armv7-r|cortex-r*) echo -mv=7r4 ;;
3281 armv7-m|cortex-m*) echo -mv=7m3 ;;
3282 armv6*|arm11*) echo -mv=6 ;;
3283 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3284 echo -mv=5e ;;
3285 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3286 esac
3287 ;;
3288 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3289 -mfpu=vfp) echo --float_support=vfpv2 ;;
3290 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3291 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3292 -msoft-float) echo --float_support=vfplib ;;
3293 -O[0-3]|-mf=*) echo $flag ;;
3294 -g) echo -g -mn ;;
3295 -pds=*) echo $flag ;;
3296 -D*|-I*) echo $flag ;;
3297 --gcc|--abi=*) echo $flag ;;
3298 -me) echo $flag ;;
3299 esac
3300 done
3301 }
3302
3303 probe_cc(){
3304 pfx=$1
3305 _cc=$2
3306
3307 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3308 unset _ld_o _ldflags _ld_lib _ld_path
3309 unset _depflags _DEPCMD _DEPFLAGS
3310 _flags_filter=echo
3311
3312 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3313 _type=llvm_gcc
3314 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3315 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3316 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3317 _cflags_speed='-O3'
3318 _cflags_size='-Os'
3319 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3320 _type=gcc
3321 gcc_version=$($_cc --version | head -n1)
3322 gcc_basever=$($_cc -dumpversion)
3323 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3324 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3325 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3326 if ! $_cc -dumpversion | grep -q '^2\.'; then
3327 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3328 fi
3329 _cflags_speed='-O3'
3330 _cflags_size='-Os'
3331 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3332 _type=icc
3333 _ident=$($_cc --version | head -n1)
3334 _depflags='-MMD'
3335 _cflags_speed='-O3'
3336 _cflags_size='-Os'
3337 _cflags_noopt='-O1'
3338 elif $_cc -v 2>&1 | grep -q xlc; then
3339 _type=xlc
3340 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3341 _cflags_speed='-O5'
3342 _cflags_size='-O5 -qcompact'
3343 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3344 _type=ccc
3345 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3346 _DEPFLAGS='-M'
3347 _cflags_speed='-fast'
3348 _cflags_size='-O1'
3349 _flags_filter=ccc_flags
3350 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3351 test -d "$sysroot" || die "No valid sysroot specified."
3352 _type=armcc
3353 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3354 armcc_conf="$PWD/armcc.conf"
3355 $_cc --arm_linux_configure \
3356 --arm_linux_config_file="$armcc_conf" \
3357 --configure_sysroot="$sysroot" \
3358 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3359 die "Error creating armcc configuration file."
3360 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3361 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3362 as_default="${cross_prefix}gcc"
3363 _depflags='-MMD'
3364 _cflags_speed='-O3'
3365 _cflags_size='-Os'
3366 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3367 _type=tms470
3368 _ident=$($_cc -version | head -n1 | tr -s ' ')
3369 _flags='--gcc --abi=eabi -me'
3370 _cc_e='-ppl -fe=$@'
3371 _cc_o='-fe=$@'
3372 _depflags='-ppa -ppd=$(@:.o=.d)'
3373 _cflags_speed='-O3 -mf=5'
3374 _cflags_size='-O3 -mf=2'
3375 _flags_filter=tms470_flags
3376 elif $_cc -v 2>&1 | grep -q clang; then
3377 _type=clang
3378 _ident=$($_cc --version 2>/dev/null | head -n1)
3379 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3380 _cflags_speed='-O3'
3381 _cflags_size='-Os'
3382 elif $_cc -V 2>&1 | grep -q Sun; then
3383 _type=suncc
3384 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3385 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3386 _DEPFLAGS='-xM1 -xc99'
3387 _ldflags='-std=c99'
3388 _cflags_speed='-O5'
3389 _cflags_size='-O5 -xspace'
3390 _flags_filter=suncc_flags
3391 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3392 _type=pathscale
3393 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3394 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3395 _cflags_speed='-O2'
3396 _cflags_size='-Os'
3397 _flags_filter='filter_out -Wdisabled-optimization'
3398 elif $_cc -v 2>&1 | grep -q Open64; then
3399 _type=open64
3400 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3401 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3402 _cflags_speed='-O2'
3403 _cflags_size='-Os'
3404 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3405 elif $_cc -V 2>&1 | grep -q Portland; then
3406 _type=pgi
3407 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3408 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3409 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3410 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3411 _cflags_noopt="-O1"
3412 _flags_filter=pgi_flags
3413 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3414 _type=armasm
3415 _ident=$($_cc | head -n1)
3416 # 4509: "This form of conditional instruction is deprecated"
3417 _flags="-nologo -ignore 4509"
3418 _flags_filter=armasm_flags
3419 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3420 _type=msvc
3421 _ident=$($_cc 2>&1 | head -n1)
3422 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3423 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3424 _cflags_speed="-O2"
3425 _cflags_size="-O1"
3426 _cflags_noopt="-O1"
3427 if $_cc -nologo- 2>&1 | grep -q Linker; then
3428 _ld_o='-out:$@'
3429 else
3430 _ld_o='-Fe$@'
3431 fi
3432 _cc_o='-Fo$@'
3433 _cc_e='-P -Fi$@'
3434 _flags_filter=msvc_flags
3435 _ld_lib='lib%.a'
3436 _ld_path='-libpath:'
3437 _flags='-nologo'
3438 elif $_cc 2>&1 | grep -q Intel; then
3439 _type=icl
3440 _ident=$($_cc 2>&1 | head -n1)
3441 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3442 # Not only is O3 broken on 13.x+ but it is slower on all previous
3443 # versions (tested) as well.
3444 _cflags_speed="-O2"
3445 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3446 if $_cc 2>&1 | grep -q Linker; then
3447 _ld_o='-out:$@'
3448 else
3449 _ld_o='-Fe$@'
3450 fi
3451 _cc_o='-Fo$@'
3452 _cc_e='-P'
3453 _flags_filter=icl_flags
3454 _ld_lib='lib%.a'
3455 _ld_path='-libpath:'
3456 # -Qdiag-error to make icl error when seeing certain unknown arguments
3457 _flags='-nologo -Qdiag-error:4044,10157'
3458 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3459 # with MSVC which enables it by default.
3460 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3461 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3462 # lld can emulate multiple different linkers; in ms link.exe mode,
3463 # the -? parameter gives the help output which contains an identifyable
3464 # string, while it gives an error in other modes.
3465 _type=lld-link
3466 # The link.exe mode doesn't have a switch for getting the version,
3467 # but we can force it back to gnu mode and get the version from there.
3468 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3469 _ld_o='-out:$@'
3470 _flags_filter=msvc_flags
3471 _ld_lib='lib%.a'
3472 _ld_path='-libpath:'
3473 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3474 _type=cparser
3475 _ident=$($_cc --version | head -n1)
3476 _depflags='-MMD'
3477 _cflags_speed='-O4'
3478 _cflags_size='-O2'
3479 _flags_filter=cparser_flags
3480 fi
3481
3482 eval ${pfx}_type=\$_type
3483 eval ${pfx}_ident=\$_ident
3484 }
3485
3486 set_ccvars(){
3487 eval ${1}_C=\${_cc_c-\${${1}_C}}
3488 eval ${1}_E=\${_cc_e-\${${1}_E}}
3489 eval ${1}_O=\${_cc_o-\${${1}_O}}
3490
3491 if [ -n "$_depflags" ]; then
3492 eval ${1}_DEPFLAGS=\$_depflags
3493 else
3494 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3495 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3496 eval DEP${1}FLAGS=\$_flags
3497 fi
3498 }
3499
3500 probe_cc cc "$cc"
3501 cflags_filter=$_flags_filter
3502 cflags_speed=$_cflags_speed
3503 cflags_size=$_cflags_size
3504 cflags_noopt=$_cflags_noopt
3505 add_cflags $_flags $_cflags
3506 cc_ldflags=$_ldflags
3507 set_ccvars CC
3508
3509 probe_cc hostcc "$host_cc"
3510 host_cflags_filter=$_flags_filter
3511 host_cflags_speed=$_cflags_speed
3512 add_host_cflags $_flags $_cflags
3513 set_ccvars HOSTCC
3514
3515 test -n "$cc_type" && enable $cc_type ||
3516 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3517
3518 : ${as_default:=$cc}
3519 : ${objcc_default:=$cc}
3520 : ${dep_cc_default:=$cc}
3521 : ${ld_default:=$cc}
3522 : ${host_ld_default:=$host_cc}
3523 set_default ar as objcc dep_cc ld host_ld
3524
3525 probe_cc as "$as"
3526 asflags_filter=$_flags_filter
3527 add_asflags $_flags $_cflags
3528 set_ccvars AS
3529
3530 probe_cc objcc "$objcc"
3531 objcflags_filter=$_flags_filter
3532 add_objcflags $_flags $_cflags
3533 set_ccvars OBJC
3534
3535 probe_cc ld "$ld"
3536 ldflags_filter=$_flags_filter
3537 add_ldflags $_flags $_ldflags
3538 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3539 LD_O=${_ld_o-$LD_O}
3540 LD_LIB=${_ld_lib-$LD_LIB}
3541 LD_PATH=${_ld_path-$LD_PATH}
3542
3543 probe_cc hostld "$host_ld"
3544 host_ldflags_filter=$_flags_filter
3545 add_host_ldflags $_flags $_ldflags
3546 HOSTLD_O=${_ld_o-$HOSTLD_O}
3547
3548 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3549 probe_cc depcc "$dep_cc"
3550 CCDEP=${_DEPCMD:-$DEPCMD}
3551 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3552 DEPCCFLAGS=$_flags
3553 fi
3554
3555 if $ar 2>&1 | grep -q Microsoft; then
3556 arflags="-nologo"
3557 ar_o='-out:$@'
3558 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3559 arflags="rq"
3560 ar_o='$@'
3561 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3562 arflags='-Xany -r -c'
3563 ar_o='$@'
3564 else
3565 arflags="rc"
3566 ar_o='$@'
3567 fi
3568
3569 add_cflags $extra_cflags
3570 add_objcflags $extra_objcflags
3571 add_asflags $extra_cflags
3572
3573 if test -n "$sysroot"; then
3574 case "$cc_type" in
3575 gcc|llvm_gcc|clang)
3576 add_cppflags --sysroot="$sysroot"
3577 add_ldflags --sysroot="$sysroot"
3578 ;;
3579 tms470)
3580 add_cppflags -I"$sysinclude"
3581 add_ldflags --sysroot="$sysroot"
3582 ;;
3583 esac
3584 fi
3585
3586 if test "$cpu" = host; then
3587 enabled cross_compile &&
3588 die "--cpu=host makes no sense when cross-compiling."
3589
3590 case "$cc_type" in
3591 gcc|llvm_gcc)
3592 check_native(){
3593 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3594 sed -n "/cc1.*$1=/{
3595 s/.*$1=\\([^ ]*\\).*/\\1/
3596 p
3597 q
3598 }" $TMPE
3599 }
3600 cpu=$(check_native -march || check_native -mcpu)
3601 ;;
3602 esac
3603
3604 test "${cpu:-host}" = host &&
3605 die "--cpu=host not supported with compiler $cc"
3606 fi
3607
3608 # Deal with common $arch aliases
3609 case "$arch" in
3610 aarch64|arm64)
3611 arch="aarch64"
3612 ;;
3613 arm*)
3614 arch="arm"
3615 ;;
3616 mips*|IP*)
3617 case "$arch" in
3618 *el)
3619 add_cppflags -EL
3620 add_ldflags -EL
3621 ;;
3622 *eb)
3623 add_cppflags -EB
3624 add_ldflags -EB
3625 ;;
3626 esac
3627 arch="mips"
3628 ;;
3629 parisc*|hppa*)
3630 arch="parisc"
3631 ;;
3632 "Power Macintosh"|ppc*|powerpc*)
3633 arch="ppc"
3634 ;;
3635 s390|s390x)
3636 arch="s390"
3637 ;;
3638 sh4|sh)
3639 arch="sh4"
3640 ;;
3641 sun4u|sparc*)
3642 arch="sparc"
3643 ;;
3644 tilegx|tile-gx)
3645 arch="tilegx"
3646 ;;
3647 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3648 arch="x86"
3649 ;;
3650 esac
3651
3652 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3653 enable $arch
3654
3655 # Add processor-specific flags
3656 if enabled aarch64; then
3657
3658 case $cpu in
3659 armv*)
3660 cpuflags="-march=$cpu"
3661 ;;
3662 *)
3663 cpuflags="-mcpu=$cpu"
3664 ;;
3665 esac
3666
3667 elif enabled alpha; then
3668
3669 cpuflags="-mcpu=$cpu"
3670
3671 elif enabled arm; then
3672
3673 check_arm_arch() {
3674 check_cpp_condition stddef.h \
3675 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3676 $cpuflags
3677 }
3678
3679 probe_arm_arch() {
3680 if check_arm_arch 4; then echo armv4
3681 elif check_arm_arch 4T; then echo armv4t
3682 elif check_arm_arch 5; then echo armv5
3683 elif check_arm_arch 5E; then echo armv5e
3684 elif check_arm_arch 5T; then echo armv5t
3685 elif check_arm_arch 5TE; then echo armv5te
3686 elif check_arm_arch 5TEJ; then echo armv5te
3687 elif check_arm_arch 6; then echo armv6
3688 elif check_arm_arch 6J; then echo armv6j
3689 elif check_arm_arch 6K; then echo armv6k
3690 elif check_arm_arch 6Z; then echo armv6z
3691 elif check_arm_arch 6ZK; then echo armv6zk
3692 elif check_arm_arch 6T2; then echo armv6t2
3693 elif check_arm_arch 7; then echo armv7
3694 elif check_arm_arch 7A 7_A; then echo armv7-a
3695 elif check_arm_arch 7S; then echo armv7-a
3696 elif check_arm_arch 7R 7_R; then echo armv7-r
3697 elif check_arm_arch 7M 7_M; then echo armv7-m
3698 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3699 elif check_arm_arch 8A 8_A; then echo armv8-a
3700 fi
3701 }
3702
3703 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3704
3705 case $cpu in
3706 armv*)
3707 cpuflags="-march=$cpu"
3708 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3709 ;;
3710 *)
3711 cpuflags="-mcpu=$cpu"
3712 case $cpu in
3713 cortex-a*) subarch=armv7a ;;
3714 cortex-r*) subarch=armv7r ;;
3715 cortex-m*) enable thumb; subarch=armv7m ;;
3716 arm11*) subarch=armv6 ;;
3717 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3718 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3719 *) subarch=$(probe_arm_arch) ;;
3720 esac
3721 ;;
3722 esac
3723
3724 case "$subarch" in
3725 armv5t*) enable fast_clz ;;
3726 armv[6-8]*) enable fast_clz fast_unaligned ;;
3727 esac
3728
3729 elif enabled avr32; then
3730
3731 case $cpu in
3732 ap7[02]0[0-2])
3733 subarch="avr32_ap"
3734 cpuflags="-mpart=$cpu"
3735 ;;
3736 ap)
3737 subarch="avr32_ap"
3738 cpuflags="-march=$cpu"
3739 ;;
3740 uc3[ab]*)
3741 subarch="avr32_uc"
3742 cpuflags="-mcpu=$cpu"
3743 ;;
3744 uc)
3745 subarch="avr32_uc"
3746 cpuflags="-march=$cpu"
3747 ;;
3748 esac
3749
3750 elif enabled bfin; then
3751
3752 cpuflags="-mcpu=$cpu"
3753
3754 elif enabled mips; then
3755
3756 cpuflags="-march=$cpu"
3757
3758 elif enabled ppc; then
3759
3760 disable ldbrx
3761
3762 case $(tolower $cpu) in
3763 601|ppc601|powerpc601)
3764 cpuflags="-mcpu=601"
3765 disable altivec
3766 ;;
3767 603*|ppc603*|powerpc603*)
3768 cpuflags="-mcpu=603"
3769 disable altivec
3770 ;;
3771 604*|ppc604*|powerpc604*)
3772 cpuflags="-mcpu=604"
3773 disable altivec
3774 ;;
3775 g3|75*|ppc75*|powerpc75*)
3776 cpuflags="-mcpu=750"
3777 disable altivec
3778 ;;
3779 g4|745*|ppc745*|powerpc745*)
3780 cpuflags="-mcpu=7450"
3781 disable vsx
3782 ;;
3783 74*|ppc74*|powerpc74*)
3784 cpuflags="-mcpu=7400"
3785 disable vsx
3786 ;;
3787 g5|970|ppc970|powerpc970)
3788 cpuflags="-mcpu=970"
3789 disable vsx
3790 ;;
3791 power[3-6]*)
3792 cpuflags="-mcpu=$cpu"
3793 disable vsx
3794 ;;
3795 power[7-8]*)
3796 cpuflags="-mcpu=$cpu"
3797 enable ldbrx
3798 ;;
3799 cell)
3800 cpuflags="-mcpu=cell"
3801 enable ldbrx
3802 disable vsx
3803 ;;
3804 e500mc)
3805 cpuflags="-mcpu=e500mc"
3806 disable altivec
3807 ;;
3808 e500v2)
3809 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3810 disable altivec
3811 disable dcbzl
3812 ;;
3813 e500)
3814 cpuflags="-mcpu=8540 -mhard-float"
3815 disable altivec
3816 disable dcbzl
3817 ;;
3818 esac
3819
3820 elif enabled sparc; then
3821
3822 case $cpu in
3823 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3824 cpuflags="-mcpu=$cpu"
3825 ;;
3826 ultrasparc*|niagara[234])
3827 cpuflags="-mcpu=$cpu"
3828 ;;
3829 esac
3830
3831 elif enabled x86; then
3832
3833 case $cpu in
3834 i[345]86|pentium)
3835 cpuflags="-march=$cpu"
3836 disable i686
3837 disable mmx
3838 ;;
3839 # targets that do NOT support nopl and conditional mov (cmov)
3840 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3841 cpuflags="-march=$cpu"
3842 disable i686
3843 ;;
3844 # targets that do support nopl and conditional mov (cmov)
3845 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3846 cpuflags="-march=$cpu"
3847 enable i686
3848 enable fast_cmov
3849 ;;
3850 # targets that do support conditional mov but on which it's slow
3851 pentium4|pentium4m|prescott|nocona)
3852 cpuflags="-march=$cpu"
3853 enable i686
3854 disable fast_cmov
3855 ;;
3856 esac
3857
3858 fi
3859
3860 if [ "$cpu" != generic ]; then
3861 add_cflags $cpuflags
3862 add_asflags $cpuflags
3863 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3864 fi
3865
3866 # compiler sanity check
3867 check_exec <<EOF
3868 int main(void){ return 0; }
3869 EOF
3870 if test "$?" != 0; then
3871 echo "$cc is unable to create an executable file."
3872 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3873 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3874 echo "Only do this if you know what cross compiling means."
3875 fi
3876 die "C compiler test failed."
3877 fi
3878
3879 add_cppflags -D_ISOC99_SOURCE
3880
3881 # some compilers silently accept -std=c11, so we also need to check that the
3882 # version macro is defined properly
3883 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3884 add_cflags -std=c11 ||
3885 check_cflags -std=c99
3886
3887 check_cppflags -D_FILE_OFFSET_BITS=64
3888 check_cppflags -D_LARGEFILE_SOURCE
3889
3890 add_host_cppflags -D_ISOC99_SOURCE
3891 check_host_cflags -std=c99
3892 check_host_cflags -Wall
3893 check_host_cflags $host_cflags_speed
3894
3895 check_64bit(){
3896 arch32=$1
3897 arch64=$2
3898 expr=$3
3899 check_code cc "" "int test[2*($expr) - 1]" &&
3900 subarch=$arch64 || subarch=$arch32
3901 }
3902
3903 case "$arch" in
3904 aarch64|alpha|ia64)
3905 spic=$shared
3906 ;;
3907 mips)
3908 check_64bit mips mips64 '_MIPS_SIM > 1'
3909 spic=$shared
3910 ;;
3911 parisc)
3912 check_64bit parisc parisc64 'sizeof(void *) > 4'
3913 spic=$shared
3914 ;;
3915 ppc)
3916 check_64bit ppc ppc64 'sizeof(void *) > 4'
3917 spic=$shared
3918 ;;
3919 s390)
3920 check_64bit s390 s390x 'sizeof(void *) > 4'
3921 spic=$shared
3922 ;;
3923 sparc)
3924 check_64bit sparc sparc64 'sizeof(void *) > 4'
3925 spic=$shared
3926 ;;
3927 x86)
3928 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3929 if test "$subarch" = "x86_64"; then
3930 spic=$shared
3931 fi
3932 ;;
3933 esac
3934
3935 enable $subarch
3936 enabled spic && enable_weak pic
3937
3938 enabled x86_64 && objformat=elf64 || objformat="elf32"
3939
3940 # OS specific
3941 case $target_os in
3942 aix)
3943 SHFLAGS=-shared
3944 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3945 enabled shared && add_ldflags -Wl,-brtl
3946 ;;
3947 android)
3948 disable symver
3949 enable section_data_rel_ro
3950 SLIB_INSTALL_NAME='$(SLIBNAME)'
3951 SLIB_INSTALL_LINKS=
3952 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3953 ;;
3954 haiku)
3955 prefix_default="/boot/common"
3956 network_extralibs="-lnetwork"
3957 host_extralibs=
3958 ;;
3959 sunos)
3960 SHFLAGS='-shared -Wl,-h,$$(@F)'
3961 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3962 network_extralibs="-lsocket -lnsl"
3963 # When using suncc to build, the Solaris linker will mark
3964 # an executable with each instruction set encountered by
3965 # the Solaris assembler. As our libraries contain their own
3966 # guards for processor-specific code, instead suppress
3967 # generation of the HWCAPS ELF section on Solaris x86 only.
3968 enabled_all suncc x86 &&
3969 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3970 add_ldflags -Wl,-M,mapfile
3971 nm_default='nm -P -g'
3972 version_script='-M'
3973 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3974 ;;
3975 netbsd)
3976 disable symver
3977 oss_indev_extralibs="-lossaudio"
3978 oss_outdev_extralibs="-lossaudio"
3979 ;;
3980 openbsd|bitrig)
3981 disable symver
3982 SHFLAGS='-shared'
3983 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3984 SLIB_INSTALL_LINKS=
3985 oss_indev_extralibs="-lossaudio"
3986 oss_outdev_extralibs="-lossaudio"
3987 ;;
3988 dragonfly)
3989 disable symver
3990 ;;
3991 freebsd)
3992 ;;
3993 bsd/os)
3994 add_extralibs -lpoll -lgnugetopt
3995 ;;
3996 darwin)
3997 enabled ppc && add_asflags -force_cpusubtype_ALL
3998 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3999 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4000 add_ldflags -Wl,-dynamic,-search_paths_first
4001 check_cflags -Werror=partial-availability
4002 SLIBSUF=".dylib"
4003 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
4004 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
4005 enabled x86_64 && objformat="macho64" || objformat="macho32"
4006 enabled_any pic shared ||
4007 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4008 check_header dispatch/dispatch.h &&
4009 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4010 if test -n "$sysroot"; then
4011 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4012 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
4013 fi
4014 ;;
4015 msys*)
4016 die "Native MSYS builds are discouraged, please use the MINGW environment."
4017 ;;
4018 mingw32*|mingw64*)
4019 if test $target_os = "mingw32ce"; then
4020 disable network
4021 else
4022 target_os=mingw32
4023 fi
4024 LIBTARGET=i386
4025 if enabled x86_64; then
4026 LIBTARGET="i386:x86-64"
4027 elif enabled arm; then
4028 LIBTARGET=arm-wince
4029 fi
4030 check_ldflags -Wl,--nxcompat
4031 check_ldflags -Wl,--dynamicbase
4032 shlibdir_default="$bindir_default"
4033 SLIBPREF=""
4034 SLIBSUF=".dll"
4035 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4036 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4037 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4038 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4039 SLIB_INSTALL_LINKS=
4040 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4041 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4042 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4043 enabled x86_64 && objformat="win64" || objformat="win32"
4044 dlltool="${cross_prefix}dlltool"
4045 ranlib=:
4046 enable dos_paths
4047 ;;
4048 win32|win64)
4049 disable symver
4050 if enabled shared; then
4051 # Link to the import library instead of the normal static library
4052 # for shared libs.
4053 LD_LIB='%.lib'
4054 # Cannot build both shared and static libs with MSVC or icl.
4055 disable static
4056 fi
4057 shlibdir_default="$bindir_default"
4058 SLIBPREF=""
4059 SLIBSUF=".dll"
4060 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4061 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4062 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4063 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4064 SLIB_INSTALL_LINKS=
4065 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4066 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4067 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4068 enabled x86_64 && objformat="win64" || objformat="win32"
4069 ranlib=:
4070 enable dos_paths
4071 ;;
4072 cygwin*)
4073 target_os=cygwin
4074 shlibdir_default="$bindir_default"
4075 SLIBPREF="cyg"
4076 SLIBSUF=".dll"
4077 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4078 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4079 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4080 SLIB_INSTALL_LINKS=
4081 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4082 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4083 enabled x86_64 && objformat="win64" || objformat="win32"
4084 enable dos_paths
4085 ;;
4086 *-dos|freedos|opendos)
4087 network_extralibs="-lsocket"
4088 objformat="coff"
4089 enable dos_paths
4090 add_cppflags -U__STRICT_ANSI__
4091 ;;
4092 linux)
4093 enable dv1394
4094 enable section_data_rel_ro
4095 ;;
4096 irix*)
4097 target_os=irix
4098 ranlib="echo ignoring ranlib"
4099 ;;
4100 os/2*)
4101 ln_s="cp -f"
4102 objformat="aout"
4103 add_cppflags -D_GNU_SOURCE
4104 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4105 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4106 LIBSUF="_s.a"
4107 SLIBPREF=""
4108 SLIBSUF=".dll"
4109 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4110 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4111 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4112 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4113 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4114 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4115 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4116 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4117 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4118 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4119 enable dos_paths
4120 ;;
4121 gnu/kfreebsd)
4122 add_cppflags -D_BSD_SOURCE
4123 ;;
4124 gnu)
4125 ;;
4126 qnx)
4127 add_cppflags -D_QNX_SOURCE
4128 network_extralibs="-lsocket"
4129 ;;
4130 symbian)
4131 SLIBSUF=".dll"
4132 enable dos_paths
4133 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4134 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4135 add_ldflags -Wl,--target1-abs,--no-undefined \
4136 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4137 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4138 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4139 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4140 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4141 ;;
4142 osf1)
4143 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4144 ;;
4145 minix)
4146 ;;
4147 none)
4148 ;;
4149 *)
4150 die "Unknown OS '$target_os'."
4151 ;;
4152 esac
4153
4154 # determine libc flavour
4155
4156 probe_libc(){
4157 pfx=$1
4158 pfx_no_=${pfx%_}
4159 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4160 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4161 eval ${pfx}libc_type=uclibc
4162 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4163 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4164 eval ${pfx}libc_type=glibc
4165 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4166 # MinGW headers can be installed on Cygwin, so check for newlib first.
4167 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4168 eval ${pfx}libc_type=newlib
4169 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4170 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4171 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4172 eval ${pfx}libc_type=mingw64
4173 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4174 eval test \$${pfx_no_}cc_type = "gcc" &&
4175 add_${pfx}cppflags -D__printf__=__gnu_printf__
4176 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4177 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4178 eval ${pfx}libc_type=mingw32
4179 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4180 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4181 die "ERROR: MinGW32 runtime version must be >= 3.15."
4182 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4183 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4184 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4185 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4186 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4187 eval test \$${pfx_no_}cc_type = "gcc" &&
4188 add_${pfx}cppflags -D__printf__=__gnu_printf__
4189 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4190 eval ${pfx}libc_type=msvcrt
4191 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4192 if [ "$pfx" = host_ ]; then
4193 add_host_cppflags -Dsnprintf=_snprintf
4194 else
4195 add_compat strtod.o strtod=avpriv_strtod
4196 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4197 _snprintf=avpriv_snprintf \
4198 vsnprintf=avpriv_vsnprintf
4199 fi
4200 fi
4201 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4202 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4203 # 0x601 by default unless something else is set by the user.
4204 # This can easily lead to us detecting functions only present
4205 # in such new versions and producing binaries requiring windows 7.0.
4206 # Therefore explicitly set the default to XP unless the user has
4207 # set something else on the command line.
4208 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4209 # family. For these cases, configure is free to use any functions
4210 # found in the SDK headers by default. (Alternatively, we could force
4211 # _WIN32_WINNT to 0x0602 in that case.)
4212 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4213 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4214 #ifdef WINAPI_FAMILY
4215 #include <winapifamily.h>
4216 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4217 #error not desktop
4218 #endif
4219 #endif
4220 EOF
4221 if [ "$pfx" = "" ]; then
4222 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4223 fi
4224 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4225 eval ${pfx}libc_type=klibc
4226 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4227 eval ${pfx}libc_type=bionic
4228 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4229 eval ${pfx}libc_type=solaris
4230 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4231 else
4232 eval ${pfx}libc_type=default
4233 add_${pfx}cppflags -D_DEFAULT_SOURCE
4234 fi
4235 }
4236
4237 probe_libc
4238 test -n "$libc_type" && enable libc_$libc_type
4239 probe_libc host_
4240 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4241
4242 # hacks for compiler/libc/os combinations
4243
4244 case $libc_type in
4245 bionic)
4246 add_compat strtod.o strtod=avpriv_strtod
4247 ;;
4248 glibc)
4249 if enabled tms470; then
4250 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4251 add_cppflags -D__USER_LABEL_PREFIX__=
4252 add_cppflags -D__builtin_memset=memset
4253 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4254 add_cflags -pds=48 # incompatible redefinition of macro
4255 elif enabled ccc; then
4256 add_ldflags -Wl,-z,now # calls to libots crash without this
4257 fi
4258 ;;
4259 esac
4260
4261 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4262 add_cppflags '-I\$(SRC_PATH)/compat/float'
4263
4264 esc(){
4265 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4266 }
4267
4268 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4269
4270 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4271
4272 set_default $PATHS_LIST
4273 set_default nm
4274
4275 # we need to build at least one lib type
4276 if ! enabled_any static shared; then
4277 cat <<EOF
4278 At least one library type must be built.
4279 Specify --enable-static to build the static libraries or --enable-shared to
4280 build the shared libraries as well. To only build the shared libraries specify
4281 --disable-static in addition to --enable-shared.
4282 EOF
4283 exit 1
4284 fi
4285
4286 disabled optimizations || check_cflags -fomit-frame-pointer
4287
4288 enable_weak_pic() {
4289 disabled pic && return
4290 enable pic
4291 add_cppflags -DPIC
4292 case "$target_os" in
4293 mingw*|cygwin*)
4294 ;;
4295 *)
4296 add_cflags -fPIC
4297 ;;
4298 esac
4299 add_asflags -fPIC
4300 }
4301
4302 enabled pic && enable_weak_pic
4303
4304 check_cc <<EOF || die "Symbol mangling check failed."
4305 int ff_extern;
4306 EOF
4307 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4308 extern_prefix=${sym%%ff_extern*}
4309
4310 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4311
4312 _restrict=
4313 for restrict_keyword in restrict __restrict__ __restrict; do
4314 check_cc <<EOF && _restrict=$restrict_keyword && break
4315 void foo(char * $restrict_keyword p);
4316 EOF
4317 done
4318
4319 check_cc <<EOF && enable pragma_deprecated
4320 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4321 EOF
4322
4323 check_cc <<EOF && enable attribute_packed
4324 struct { int x; } __attribute__((packed)) x;
4325 EOF
4326
4327 check_cc <<EOF && enable attribute_may_alias
4328 union { int x; } __attribute__((may_alias)) x;
4329 EOF
4330
4331 check_cc <<EOF || die "endian test failed"
4332 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4333 EOF
4334 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4335
4336 check_gas() {
4337 log "check_gas using '$as' as AS"
4338 # :vararg is used on aarch64, arm and ppc altivec
4339 check_as <<EOF || return 1
4340 .macro m n, y:vararg=0
4341 \n: .int \y
4342 .endm
4343 m x
4344 EOF
4345 # .altmacro is only used in arm asm
4346 ! enabled arm || check_as <<EOF || return 1
4347 .altmacro
4348 EOF
4349 enable gnu_as
4350 return 0
4351 }
4352
4353 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4354 nogas=:
4355 enabled_any arm aarch64 && nogas=die
4356 enabled_all ppc altivec && nogas=warn
4357 as_noop=-v
4358
4359 case $as_type in
4360 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4361 gcc) gaspp_as_type=gas ;;
4362 *) gaspp_as_type=$as_type ;;
4363 esac
4364
4365 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4366
4367 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &