build: Drop check for sys/mman.h in favor of mmap() check
[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 ${name}_extralibs="\$@"
1026 }
1027
1028 test_pkg_config(){
1029 log test_pkg_config "$@"
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 $name &&
1042 set_sanitized "${name}_cflags" $pkg_cflags &&
1043 set_sanitized "${name}_extralibs" $pkg_libs
1044 }
1045
1046 check_pkg_config(){
1047 log check_pkg_config "$@"
1048 name="$1"
1049 test_pkg_config "$@" &&
1050 eval add_cflags \$${name}_cflags
1051 }
1052
1053 check_exec(){
1054 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1055 }
1056
1057 check_exec_crash(){
1058 log check_exec_crash "$@"
1059 code=$(cat)
1060
1061 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1062 # are safe but may not be available everywhere. Thus we use
1063 # raise(SIGTERM) instead. The check is run in a subshell so we
1064 # can redirect the "Terminated" message from the shell. SIGBUS
1065 # is not defined by standard C so it is used conditionally.
1066
1067 (check_exec "$@") >> $logfile 2>&1 <<EOF
1068 #include <signal.h>
1069 static void sighandler(int sig){
1070 raise(SIGTERM);
1071 }
1072 int foo(void){
1073 $code
1074 }
1075 int (*func_ptr)(void) = foo;
1076 int main(void){
1077 signal(SIGILL, sighandler);
1078 signal(SIGFPE, sighandler);
1079 signal(SIGSEGV, sighandler);
1080 #ifdef SIGBUS
1081 signal(SIGBUS, sighandler);
1082 #endif
1083 return func_ptr();
1084 }
1085 EOF
1086 }
1087
1088 check_type(){
1089 log check_type "$@"
1090 headers=$1
1091 type=$2
1092 shift 2
1093 disable_sanitized "$type"
1094 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1095 }
1096
1097 check_struct(){
1098 log check_struct "$@"
1099 headers=$1
1100 struct=$2
1101 member=$3
1102 shift 3
1103 disable_sanitized "${struct}_${member}"
1104 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1105 enable_sanitized "${struct}_${member}"
1106 }
1107
1108 check_builtin(){
1109 log check_builtin "$@"
1110 name=$1
1111 headers=$2
1112 builtin=$3
1113 shift 3
1114 disable "$name"
1115 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1116 }
1117
1118 check_compile_assert(){
1119 log check_compile_assert "$@"
1120 name=$1
1121 headers=$2
1122 condition=$3
1123 shift 3
1124 disable "$name"
1125 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1126 }
1127
1128 require(){
1129 log require "$@"
1130 name_version="$1"
1131 name="${1%% *}"
1132 headers="$2"
1133 func="$3"
1134 shift 3
1135 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1136 }
1137
1138 require_header(){
1139 log require "$@"
1140 header="$1"
1141 shift
1142 check_header "$header" "$@" || die "ERROR: $header not found"
1143 }
1144
1145 require_cpp_condition(){
1146 log require "$@"
1147 header="$1"
1148 condition="$2"
1149 shift 2
1150 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1151 }
1152
1153 require_pkg_config(){
1154 log require_pkg_config "$@"
1155 pkg_version="$2"
1156 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1157 }
1158
1159 hostcc_e(){
1160 eval printf '%s\\n' $HOSTCC_E
1161 }
1162
1163 hostcc_o(){
1164 eval printf '%s\\n' $HOSTCC_O
1165 }
1166
1167 check_host_cc(){
1168 log check_host_cc "$@"
1169 cat > $TMPC
1170 log_file $TMPC
1171 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1172 }
1173
1174 check_host_cpp(){
1175 log check_host_cpp "$@"
1176 cat > $TMPC
1177 log_file $TMPC
1178 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1179 }
1180
1181 check_host_cppflags(){
1182 log check_host_cppflags "$@"
1183 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1184 #include <stdlib.h>;
1185 EOF
1186 }
1187
1188 check_host_cflags(){
1189 log check_host_cflags "$@"
1190 set -- $($host_cflags_filter "$@")
1191 check_host_cc "$@" <<EOF && append host_cflags "$@"
1192 int x;
1193 EOF
1194 }
1195
1196 check_host_cpp_condition(){
1197 log check_host_cpp_condition "$@"
1198 header=$1
1199 condition=$2
1200 shift 2
1201 check_host_cpp "$@" <<EOF
1202 #include <$header>
1203 #if !($condition)
1204 #error "unsatisfied condition: $condition"
1205 #endif
1206 EOF
1207 }
1208
1209 apply(){
1210 file=$1
1211 shift
1212 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1213 }
1214
1215 cp_if_changed(){
1216 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1217 mkdir -p "$(dirname $2)"
1218 cp -f "$1" "$2"
1219 }
1220
1221 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1222 # system-dependent things.
1223
1224 AVCODEC_COMPONENTS="
1225 bsfs
1226 decoders
1227 encoders
1228 hwaccels
1229 parsers
1230 "
1231
1232 AVDEVICE_COMPONENTS="
1233 indevs
1234 outdevs
1235 "
1236 AVFILTER_COMPONENTS="
1237 filters
1238 "
1239 AVFORMAT_COMPONENTS="
1240 demuxers
1241 muxers
1242 protocols
1243 "
1244
1245 AVRESAMPLE_COMPONENTS=""
1246 AVUTIL_COMPONENTS=""
1247
1248 COMPONENT_LIST="
1249 $AVCODEC_COMPONENTS
1250 $AVDEVICE_COMPONENTS
1251 $AVFILTER_COMPONENTS
1252 $AVFORMAT_COMPONENTS
1253 $AVRESAMPLE_COMPONENTS
1254 $AVUTIL_COMPONENTS
1255 "
1256
1257 EXAMPLE_LIST="
1258 decode_audio_example
1259 decode_video_example
1260 encode_audio_example
1261 encode_video_example
1262 filter_audio_example
1263 metadata_example
1264 output_example
1265 qsvdec_example
1266 transcode_aac_example
1267 "
1268
1269 # catchall list of things that require external libs to link
1270 EXTRALIBS_LIST="
1271 cpu_init
1272 cws2fws
1273 "
1274
1275 HWACCEL_LIBRARY_NONFREE_LIST="
1276 cuda
1277 cuvid
1278 libnpp
1279 "
1280 HWACCEL_LIBRARY_LIST="
1281 $HWACCEL_LIBRARY_NONFREE_LIST
1282 d3d11va
1283 dxva2
1284 libmfx
1285 mmal
1286 nvenc
1287 omx
1288 vaapi
1289 vda
1290 vdpau
1291 "
1292
1293 EXTERNAL_LIBRARY_GPL_LIST="
1294 libcdio
1295 libx264
1296 libx265
1297 libxavs
1298 libxvid
1299 "
1300
1301 EXTERNAL_LIBRARY_NONFREE_LIST="
1302 libfaac
1303 libfdk_aac
1304 openssl
1305 "
1306
1307 EXTERNAL_LIBRARY_VERSION3_LIST="
1308 libopencore_amrnb
1309 libopencore_amrwb
1310 libvo_aacenc
1311 libvo_amrwbenc
1312 "
1313
1314 EXTERNAL_LIBRARY_LIST="
1315 $EXTERNAL_LIBRARY_GPL_LIST
1316 $EXTERNAL_LIBRARY_NONFREE_LIST
1317 $EXTERNAL_LIBRARY_VERSION3_LIST
1318 avisynth
1319 avxsynth
1320 frei0r
1321 gnutls
1322 libbs2b
1323 libdc1394
1324 libdcadec
1325 libfontconfig
1326 libfreetype
1327 libgsm
1328 libhdcd
1329 libilbc
1330 libjack
1331 libkvazaar
1332 libmp3lame
1333 libopencv
1334 libopenh264
1335 libopenjpeg
1336 libopus
1337 libpulse
1338 librtmp
1339 libschroedinger
1340 libsnappy
1341 libspeex
1342 libtheora
1343 libtwolame
1344 libvorbis
1345 libvpx
1346 libwavpack
1347 libwebp
1348 libxcb
1349 libxcb_shm
1350 libxcb_xfixes
1351 "
1352
1353 SYSTEM_LIBRARY_LIST="
1354 bzlib
1355 zlib
1356 "
1357
1358 FEATURE_LIST="
1359 gray
1360 hardcoded_tables
1361 omx_rpi
1362 runtime_cpudetect
1363 safe_bitstream_reader
1364 shared
1365 small
1366 sram
1367 static
1368 swscale_alpha
1369 "
1370
1371 LIBRARY_LIST="
1372 avcodec
1373 avdevice
1374 avfilter
1375 avformat
1376 avresample
1377 avutil
1378 swscale
1379 "
1380
1381 LICENSE_LIST="
1382 gpl
1383 nonfree
1384 version3
1385 "
1386
1387 PROGRAM_LIST="
1388 avconv
1389 avplay
1390 avprobe
1391 "
1392
1393 SUBSYSTEM_LIST="
1394 dct
1395 doc
1396 error_resilience
1397 faan
1398 fft
1399 lsp
1400 lzo
1401 mdct
1402 network
1403 rdft
1404 "
1405
1406 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1407 CONFIG_LIST="
1408 $EXAMPLE_LIST
1409 $EXTERNAL_LIBRARY_LIST
1410 $HWACCEL_LIBRARY_LIST
1411 $FEATURE_LIST
1412 $LICENSE_LIST
1413 $LIBRARY_LIST
1414 $PROGRAM_LIST
1415 $SUBSYSTEM_LIST
1416 $SYSTEM_LIBRARY_LIST
1417 neon_clobber_test
1418 pic
1419 pod2man
1420 texi2html
1421 thumb
1422 valgrind_backtrace
1423 xmm_clobber_test
1424 $COMPONENT_LIST
1425 "
1426
1427 THREADS_LIST="
1428 pthreads
1429 w32threads
1430 "
1431
1432 ATOMICS_LIST="
1433 atomics_gcc
1434 atomics_suncc
1435 atomics_win32
1436 "
1437
1438 ARCH_LIST="
1439 aarch64
1440 alpha
1441 arm
1442 avr32
1443 avr32_ap
1444 avr32_uc
1445 bfin
1446 ia64
1447 m68k
1448 mips
1449 mips64
1450 parisc
1451 ppc
1452 ppc64
1453 s390
1454 sh4
1455 sparc
1456 sparc64
1457 tilegx
1458 tilepro
1459 tomi
1460 x86
1461 x86_32
1462 x86_64
1463 "
1464
1465 ARCH_EXT_LIST_ARM="
1466 armv5te
1467 armv6
1468 armv6t2
1469 armv8
1470 neon
1471 vfp
1472 vfpv3
1473 "
1474
1475 ARCH_EXT_LIST_X86_SIMD="
1476 amd3dnow
1477 amd3dnowext
1478 avx
1479 avx2
1480 fma3
1481 fma4
1482 mmx
1483 mmxext
1484 sse
1485 sse2
1486 sse3
1487 sse4
1488 sse42
1489 ssse3
1490 xop
1491 "
1492
1493 ARCH_EXT_LIST_PPC="
1494 altivec
1495 dcbzl
1496 ldbrx
1497 power8
1498 ppc4xx
1499 vsx
1500 "
1501
1502 ARCH_EXT_LIST_X86="
1503 $ARCH_EXT_LIST_X86_SIMD
1504 cpunop
1505 i686
1506 "
1507
1508 ARCH_EXT_LIST_MIPS="
1509 loongson
1510 mips32r1
1511 mips64r1
1512 mips32r2
1513 mips64r2
1514 mips32r6
1515 mips64r6
1516 "
1517
1518 ARCH_EXT_LIST="
1519 $ARCH_EXT_LIST_ARM
1520 $ARCH_EXT_LIST_MIPS
1521 $ARCH_EXT_LIST_PPC
1522 $ARCH_EXT_LIST_X86
1523 vis
1524 "
1525
1526 ARCH_FEATURES="
1527 aligned_stack
1528 fast_64bit
1529 fast_clz
1530 fast_cmov
1531 local_aligned_8
1532 local_aligned_16
1533 local_aligned_32
1534 simd_align_16
1535 simd_align_32
1536 "
1537
1538 BUILTIN_LIST="
1539 atomic_cas_ptr
1540 machine_rw_barrier
1541 MemoryBarrier
1542 mm_empty
1543 rdtsc
1544 sem_timedwait
1545 sync_val_compare_and_swap
1546 "
1547 HAVE_LIST_CMDLINE="
1548 inline_asm
1549 symver
1550 x86asm
1551 "
1552
1553 HAVE_LIST_PUB="
1554 bigendian
1555 fast_unaligned
1556 "
1557
1558 HEADERS_LIST="
1559 AVFoundation_AVFoundation_h
1560 arpa_inet_h
1561 cdio_paranoia_h
1562 cdio_paranoia_paranoia_h
1563 dispatch_dispatch_h
1564 dev_bktr_ioctl_bt848_h
1565 dev_bktr_ioctl_meteor_h
1566 dev_ic_bt8xx_h
1567 dev_video_bktr_ioctl_bt848_h
1568 dev_video_meteor_ioctl_meteor_h
1569 direct_h
1570 dxgidebug_h
1571 dxva_h
1572 gsm_h
1573 io_h
1574 mach_mach_time_h
1575 machine_ioctl_bt848_h
1576 machine_ioctl_meteor_h
1577 malloc_h
1578 poll_h
1579 soundcard_h
1580 stdatomic_h
1581 sys_param_h
1582 sys_resource_h
1583 sys_select_h
1584 sys_soundcard_h
1585 sys_time_h
1586 sys_un_h
1587 sys_videoio_h
1588 unistd_h
1589 valgrind_valgrind_h
1590 windows_h
1591 winsock2_h
1592 "
1593
1594 INTRINSICS_LIST="
1595 intrinsics_neon
1596 "
1597
1598 MATH_FUNCS="
1599 atanf
1600 atan2f
1601 cbrtf
1602 cosf
1603 exp2
1604 exp2f
1605 expf
1606 isinf
1607 isnan
1608 ldexpf
1609 llrint
1610 llrintf
1611 log2
1612 log2f
1613 log10f
1614 lrint
1615 lrintf
1616 powf
1617 rint
1618 round
1619 roundf
1620 sinf
1621 trunc
1622 truncf
1623 "
1624
1625 SYSTEM_FUNCS="
1626 aligned_malloc
1627 clock_gettime
1628 closesocket
1629 CommandLineToArgvW
1630 CryptGenRandom
1631 fcntl
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 localtime_r
1646 mach_absolute_time
1647 MapViewOfFile
1648 memalign
1649 mmap
1650 mprotect
1651 nanosleep
1652 posix_memalign
1653 sched_getaffinity
1654 SetConsoleTextAttribute
1655 setmode
1656 setrlimit
1657 Sleep
1658 strerror_r
1659 sysconf
1660 sysctl
1661 usleep
1662 VirtualAlloc
1663 "
1664
1665 TOOLCHAIN_FEATURES="
1666 as_arch_directive
1667 as_fpu_directive
1668 as_func
1669 as_object_arch
1670 asm_mod_q
1671 attribute_may_alias
1672 attribute_packed
1673 blocks_extension
1674 ebp_available
1675 ebx_available
1676 gnu_as
1677 ibm_asm
1678 inline_asm_labels
1679 pragma_deprecated
1680 symver_asm_label
1681 symver_gnu_asm
1682 vfp_args
1683 xform_asm
1684 xmm_clobbers
1685 "
1686
1687 TYPES_LIST="
1688 CONDITION_VARIABLE_Ptr
1689 CUVIDDECODECREATEINFO_bitDepthMinus8
1690 socklen_t
1691 struct_addrinfo
1692 struct_group_source_req
1693 struct_ip_mreq_source
1694 struct_ipv6_mreq
1695 struct_pollfd
1696 struct_rusage_ru_maxrss
1697 struct_sockaddr_in6
1698 struct_sockaddr_sa_len
1699 struct_sockaddr_storage
1700 struct_v4l2_frmivalenum_discrete
1701 "
1702
1703 HAVE_LIST="
1704 $ARCH_EXT_LIST
1705 $(add_suffix _external $ARCH_EXT_LIST)
1706 $(add_suffix _inline $ARCH_EXT_LIST)
1707 $ARCH_FEATURES
1708 $BUILTIN_LIST
1709 $HAVE_LIST_CMDLINE
1710 $HAVE_LIST_PUB
1711 $HEADERS_LIST
1712 $INTRINSICS_LIST
1713 $MATH_FUNCS
1714 $SYSTEM_FUNCS
1715 $THREADS_LIST
1716 $TOOLCHAIN_FEATURES
1717 $TYPES_LIST
1718 dos_paths
1719 libc_msvcrt
1720 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1721 sdl
1722 section_data_rel_ro
1723 threads
1724 uwp
1725 vaapi_drm
1726 vaapi_x11
1727 vdpau_x11
1728 "
1729
1730 # options emitted with CONFIG_ prefix but not available on the command line
1731 CONFIG_EXTRA="
1732 aandcttables
1733 ac3dsp
1734 adts_header
1735 audio_frame_queue
1736 audiodsp
1737 blockdsp
1738 bswapdsp
1739 cabac
1740 cbs
1741 cbs_h264
1742 cbs_h265
1743 cbs_mpeg2
1744 dirac_parse
1745 dvprofile
1746 faandct
1747 faanidct
1748 fdctdsp
1749 flacdsp
1750 fmtconvert
1751 g722dsp
1752 gmp
1753 golomb
1754 gplv3
1755 h263dsp
1756 h264chroma
1757 h264dsp
1758 h264parse
1759 h264pred
1760 h264qpel
1761 hevcparse
1762 hpeldsp
1763 huffman
1764 huffyuvdsp
1765 huffyuvencdsp
1766 idctdsp
1767 iirfilter
1768 imdct15
1769 intrax8
1770 iso_media
1771 ividsp
1772 jpegtables
1773 lgplv3
1774 libx262
1775 libxcb_shape
1776 lpc
1777 lzf
1778 me_cmp
1779 mpeg_er
1780 mpegaudio
1781 mpegaudiodsp
1782 mpegaudioheader
1783 mpegvideo
1784 mpegvideoenc
1785 mss34dsp
1786 pixblockdsp
1787 qpeldsp
1788 qsv
1789 qsvdec
1790 qsvenc
1791 qsvvpp
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 cbs_mpeg2_select="cbs"
1974 dct_select="rdft"
1975 dirac_parse_select="golomb"
1976 error_resilience_select="me_cmp"
1977 faandct_deps="faan"
1978 faandct_select="fdctdsp"
1979 faanidct_deps="faan"
1980 faanidct_select="idctdsp"
1981 h264dsp_select="startcode"
1982 hevcparse_select="golomb"
1983 intrax8_select="blockdsp idctdsp"
1984 mdct_select="fft"
1985 rdft_select="fft"
1986 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1987 mpeg_er_select="error_resilience"
1988 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1989 mpegaudiodsp_select="dct"
1990 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1991 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1992 vc1dsp_select="h264chroma qpeldsp startcode"
1993
1994 # decoders / encoders
1995 aac_decoder_select="adts_header imdct15 mdct sinewin"
1996 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1997 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1998 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1999 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2000 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2001 adpcm_g722_decoder_select="g722dsp"
2002 adpcm_g722_encoder_select="g722dsp"
2003 aic_decoder_select="golomb idctdsp"
2004 alac_encoder_select="lpc"
2005 als_decoder_select="bswapdsp"
2006 amrnb_decoder_select="lsp"
2007 amrwb_decoder_select="lsp"
2008 amv_decoder_select="sp5x_decoder"
2009 ape_decoder_select="bswapdsp"
2010 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2011 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2012 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2013 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2014 atrac1_decoder_select="mdct sinewin"
2015 atrac3_decoder_select="mdct"
2016 atrac3p_decoder_select="mdct sinewin"
2017 bink_decoder_select="blockdsp hpeldsp"
2018 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2019 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2020 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2021 clearvideo_decoder_select="idctdsp"
2022 cllc_decoder_select="bswapdsp"
2023 comfortnoise_encoder_select="lpc"
2024 cook_decoder_select="audiodsp mdct sinewin"
2025 cscd_decoder_select="lzo"
2026 cscd_decoder_suggest="zlib"
2027 dca_decoder_select="fmtconvert mdct"
2028 dds_decoder_select="texturedsp"
2029 dnxhd_decoder_select="blockdsp idctdsp"
2030 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2031 dvvideo_decoder_select="dvprofile idctdsp"
2032 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2033 dxa_decoder_deps="zlib"
2034 dxv_decoder_select="lzf texturedsp"
2035 eac3_decoder_select="ac3_decoder"
2036 eac3_encoder_select="ac3_encoder"
2037 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2038 eatgq_decoder_select="aandcttables idctdsp"
2039 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2040 exr_decoder_deps="zlib"
2041 ffv1_decoder_select="rangecoder"
2042 ffv1_encoder_select="rangecoder"
2043 ffvhuff_decoder_select="huffyuv_decoder"
2044 ffvhuff_encoder_select="huffyuv_encoder"
2045 fic_decoder_select="golomb"
2046 flac_decoder_select="flacdsp"
2047 flac_encoder_select="bswapdsp flacdsp lpc"
2048 flashsv_decoder_deps="zlib"
2049 flashsv_encoder_deps="zlib"
2050 flashsv2_decoder_deps="zlib"
2051 flv_decoder_select="h263_decoder"
2052 flv_encoder_select="h263_encoder"
2053 fourxm_decoder_select="blockdsp bswapdsp"
2054 fraps_decoder_select="bswapdsp huffman"
2055 g2m_decoder_deps="zlib"
2056 g2m_decoder_select="blockdsp idctdsp jpegtables"
2057 h261_decoder_select="mpeg_er mpegvideo"
2058 h261_encoder_select="aandcttables mpegvideoenc"
2059 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2060 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2061 h263i_decoder_select="h263_decoder"
2062 h263p_encoder_select="h263_encoder"
2063 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2064 h264_decoder_suggest="error_resilience"
2065 hap_decoder_select="snappy texturedsp"
2066 hap_encoder_deps="libsnappy"
2067 hap_encoder_select="texturedspenc"
2068 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2069 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2070 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2071 iac_decoder_select="imc_decoder"
2072 imc_decoder_select="bswapdsp fft mdct sinewin"
2073 indeo3_decoder_select="hpeldsp"
2074 indeo4_decoder_select="ividsp"
2075 indeo5_decoder_select="ividsp"
2076 interplay_video_decoder_select="hpeldsp"
2077 jpegls_decoder_select="mjpeg_decoder"
2078 jv_decoder_select="blockdsp"
2079 lagarith_decoder_select="huffyuvdsp"
2080 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2081 magicyuv_decoder_select="huffyuvdsp"
2082 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2083 metasound_decoder_select="lsp mdct sinewin"
2084 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2085 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2086 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2087 mjpegb_decoder_select="mjpeg_decoder"
2088 mlp_decoder_select="mlp_parser"
2089 motionpixels_decoder_select="bswapdsp"
2090 mp1_decoder_select="mpegaudio"
2091 mp1float_decoder_select="mpegaudio"
2092 mp2_decoder_select="mpegaudio"
2093 mp2float_decoder_select="mpegaudio"
2094 mp3_decoder_select="mpegaudio"
2095 mp3adu_decoder_select="mpegaudio"
2096 mp3adufloat_decoder_select="mpegaudio"
2097 mp3float_decoder_select="mpegaudio"
2098 mp3on4_decoder_select="mpegaudio"
2099 mp3on4float_decoder_select="mpegaudio"
2100 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2101 mpc8_decoder_select="mpegaudiodsp"
2102 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2103 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2104 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2105 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2106 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2107 mpeg4_encoder_select="h263_encoder"
2108 msa1_decoder_select="mss34dsp"
2109 msmpeg4v1_decoder_select="h263_decoder"
2110 msmpeg4v2_decoder_select="h263_decoder"
2111 msmpeg4v2_encoder_select="h263_encoder"
2112 msmpeg4v3_decoder_select="h263_decoder"
2113 msmpeg4v3_encoder_select="h263_encoder"
2114 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2115 mts2_decoder_select="mss34dsp"
2116 mxpeg_decoder_select="mjpeg_decoder"
2117 nellymoser_decoder_select="mdct sinewin"
2118 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2119 nuv_decoder_select="idctdsp lzo"
2120 on2avc_decoder_select="mdct"
2121 opus_decoder_deps="avresample"
2122 opus_decoder_select="imdct15"
2123 png_decoder_deps="zlib"
2124 png_encoder_deps="zlib"
2125 png_encoder_select="huffyuvencdsp"
2126 prores_decoder_select="idctdsp"
2127 prores_encoder_select="fdctdsp"
2128 qcelp_decoder_select="lsp"
2129 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2130 ra_144_encoder_select="audio_frame_queue lpc"
2131 ralf_decoder_select="golomb"
2132 rscc_decoder_deps="zlib"
2133 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2134 rv10_encoder_select="h263_encoder"
2135 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2136 rv20_encoder_select="h263_encoder"
2137 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2138 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2139 screenpresso_decoder_deps="zlib"
2140 sipr_decoder_select="lsp"
2141 sp5x_decoder_select="mjpeg_decoder"
2142 svq1_decoder_select="hpeldsp"
2143 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2144 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2145 svq3_decoder_suggest="zlib"
2146 tak_decoder_select="audiodsp"
2147 tdsc_decoder_deps="zlib"
2148 tdsc_decoder_select="mjpeg_decoder"
2149 theora_decoder_select="vp3_decoder"
2150 thp_decoder_select="mjpeg_decoder"
2151 tiff_decoder_suggest="zlib"
2152 tiff_encoder_suggest="zlib"
2153 truehd_decoder_select="mlp_decoder"
2154 truemotion2_decoder_select="bswapdsp"
2155 truespeech_decoder_select="bswapdsp"
2156 tscc_decoder_deps="zlib"
2157 txd_decoder_select="texturedsp"
2158 twinvq_decoder_select="mdct lsp sinewin"
2159 utvideo_decoder_select="bswapdsp huffyuvdsp"
2160 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2161 vble_decoder_select="huffyuvdsp"
2162 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2163 vc1image_decoder_select="vc1_decoder"
2164 vorbis_decoder_select="mdct"
2165 vorbis_encoder_select="mdct"
2166 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2167 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2168 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2169 vp6a_decoder_select="vp6_decoder"
2170 vp6f_decoder_select="vp6_decoder"
2171 vp7_decoder_select="h264pred videodsp vp8dsp"
2172 vp8_decoder_select="h264pred videodsp vp8dsp"
2173 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2174 webp_decoder_select="vp8_decoder"
2175 wmapro_decoder_select="mdct sinewin wma_freqs"
2176 wmav1_decoder_select="mdct sinewin wma_freqs"
2177 wmav1_encoder_select="mdct sinewin wma_freqs"
2178 wmav2_decoder_select="mdct sinewin wma_freqs"
2179 wmav2_encoder_select="mdct sinewin wma_freqs"
2180 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2181 wmv1_decoder_select="h263_decoder"
2182 wmv1_encoder_select="h263_encoder"
2183 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2184 wmv2_encoder_select="h263_encoder wmv2dsp"
2185 wmv3_decoder_select="vc1_decoder"
2186 wmv3image_decoder_select="wmv3_decoder"
2187 zerocodec_decoder_deps="zlib"
2188 zlib_decoder_deps="zlib"
2189 zlib_encoder_deps="zlib"
2190 zmbv_decoder_deps="zlib"
2191 zmbv_encoder_deps="zlib"
2192
2193 # hardware accelerators
2194 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2195 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2196 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2197 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2198
2199 h263_vaapi_hwaccel_deps="vaapi"
2200 h263_vaapi_hwaccel_select="h263_decoder"
2201 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2202 h264_cuvid_hwaccel_select="h264_decoder"
2203 h264_d3d11va_hwaccel_deps="d3d11va"
2204 h264_d3d11va_hwaccel_select="h264_decoder"
2205 h264_d3d11va2_hwaccel_deps="d3d11va"
2206 h264_d3d11va2_hwaccel_select="h264_decoder"
2207 h264_dxva2_hwaccel_deps="dxva2"
2208 h264_dxva2_hwaccel_select="h264_decoder"
2209 h264_mmal_hwaccel_deps="mmal"
2210 h264_qsv_hwaccel_deps="libmfx"
2211 h264_vaapi_hwaccel_deps="vaapi"
2212 h264_vaapi_hwaccel_select="h264_decoder"
2213 h264_vda_hwaccel_deps="vda"
2214 h264_vda_hwaccel_select="h264_decoder"
2215 h264_vda_old_hwaccel_deps="vda"
2216 h264_vda_old_hwaccel_select="h264_decoder"
2217 h264_vdpau_hwaccel_deps="vdpau"
2218 h264_vdpau_hwaccel_select="h264_decoder"
2219 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2220 hevc_cuvid_hwaccel_select="hevc_decoder"
2221 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2222 hevc_d3d11va_hwaccel_select="hevc_decoder"
2223 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2224 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2225 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2226 hevc_dxva2_hwaccel_select="hevc_decoder"
2227 hevc_qsv_hwaccel_deps="libmfx"
2228 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2229 hevc_vaapi_hwaccel_select="hevc_decoder"
2230 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2231 hevc_vdpau_hwaccel_select="hevc_decoder"
2232 mpeg1_vdpau_hwaccel_deps="vdpau"
2233 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2234 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2235 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2236 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2237 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2238 mpeg2_dxva2_hwaccel_deps="dxva2"
2239 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2240 mpeg2_mmal_hwaccel_deps="mmal"
2241 mpeg2_qsv_hwaccel_deps="libmfx"
2242 mpeg2_vaapi_hwaccel_deps="vaapi"
2243 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2244 mpeg2_vdpau_hwaccel_deps="vdpau"
2245 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2246 mpeg4_vaapi_hwaccel_deps="vaapi"
2247 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2248 mpeg4_vdpau_hwaccel_deps="vdpau"
2249 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2250 vc1_d3d11va_hwaccel_deps="d3d11va"
2251 vc1_d3d11va_hwaccel_select="vc1_decoder"
2252 vc1_d3d11va2_hwaccel_deps="d3d11va"
2253 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2254 vc1_dxva2_hwaccel_deps="dxva2"
2255 vc1_dxva2_hwaccel_select="vc1_decoder"
2256 vc1_mmal_hwaccel_deps="mmal"
2257 vc1_qsv_hwaccel_deps="libmfx"
2258 vc1_vaapi_hwaccel_deps="vaapi"
2259 vc1_vaapi_hwaccel_select="vc1_decoder"
2260 vc1_vdpau_hwaccel_deps="vdpau"
2261 vc1_vdpau_hwaccel_select="vc1_decoder"
2262 vp8_qsv_hwaccel_deps="libmfx"
2263 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2264 vp8_vaapi_hwaccel_select="vp8_decoder"
2265 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2266 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2267 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2268 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2269 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2270
2271 # hardware-accelerated codecs
2272 nvenc_deps_any="libdl LoadLibrary"
2273 omx_deps="libdl pthreads"
2274 omx_rpi_select="omx"
2275 qsv_deps="libmfx"
2276 qsvdec_select="qsv"
2277 qsvenc_select="qsv"
2278 qsvvpp_select="qsv"
2279 vaapi_encode_deps="vaapi"
2280
2281 hwupload_cuda_filter_deps="cuda"
2282 scale_npp_filter_deps="cuda libnpp"
2283
2284 h264_mmal_decoder_deps="mmal"
2285 h264_nvenc_encoder_deps="nvenc"
2286 h264_omx_encoder_deps="omx"
2287 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2288 h264_qsv_encoder_select="qsvenc"
2289 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2290 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2291 hevc_nvenc_encoder_deps="nvenc"
2292 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2293 hevc_qsv_encoder_select="hevcparse qsvenc"
2294 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2295 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2296 mjpeg_qsv_encoder_deps="libmfx"
2297 mjpeg_qsv_encoder_select="qsvenc"
2298 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2299 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2300 mpeg2_mmal_decoder_deps="mmal"
2301 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2302 mpeg2_qsv_encoder_select="qsvenc"
2303 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2304 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2305 mpeg4_omx_encoder_deps="omx"
2306 vc1_mmal_decoder_deps="mmal"
2307 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2308 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2309 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2310 vp8_vaapi_encoder_select="vaapi_encode"
2311 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2312 vp9_vaapi_encoder_select="vaapi_encode"
2313
2314 nvenc_h264_encoder_select="h264_nvenc_encoder"
2315 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2316
2317 # parsers
2318 aac_parser_select="adts_header"
2319 h264_parser_select="golomb h264dsp h264parse"
2320 hevc_parser_select="hevcparse"
2321 mpegaudio_parser_select="mpegaudioheader"
2322 mpegvideo_parser_select="mpegvideo"
2323 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2324 vc1_parser_select="vc1dsp"
2325
2326 # bitstream_filters
2327 aac_adtstoasc_bsf_select="adts_header"
2328 h264_metadata_bsf_select="cbs_h264"
2329 h264_redundant_pps_bsf_select="cbs_h264"
2330 hevc_metadata_bsf_select="cbs_h265"
2331 mjpeg2jpeg_bsf_select="jpegtables"
2332 mpeg2_metadata_bsf_select="cbs_mpeg2"
2333 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2334
2335 # external libraries
2336 avisynth_deps="LoadLibrary"
2337 avxsynth_deps="libdl"
2338 avisynth_demuxer_deps_any="avisynth avxsynth"
2339 avisynth_demuxer_select="riffdec"
2340 libdcadec_decoder_deps="libdcadec"
2341 libfaac_encoder_deps="libfaac"
2342 libfaac_encoder_select="audio_frame_queue"
2343 libfdk_aac_decoder_deps="libfdk_aac"
2344 libfdk_aac_encoder_deps="libfdk_aac"
2345 libfdk_aac_encoder_select="audio_frame_queue"
2346 libgsm_decoder_deps="libgsm"
2347 libgsm_encoder_deps="libgsm"
2348 libgsm_ms_decoder_deps="libgsm"
2349 libgsm_ms_encoder_deps="libgsm"
2350 libilbc_decoder_deps="libilbc"
2351 libilbc_encoder_deps="libilbc"
2352 libkvazaar_encoder_deps="libkvazaar"
2353 libmp3lame_encoder_deps="libmp3lame"
2354 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2355 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2356 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2357 libopencore_amrnb_encoder_select="audio_frame_queue"
2358 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2359 libopenh264_decoder_deps="libopenh264"
2360 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2361 libopenh264_encoder_deps="libopenh264"
2362 libopenjpeg_decoder_deps="libopenjpeg"
2363 libopenjpeg_encoder_deps="libopenjpeg"
2364 libopus_decoder_deps="libopus"
2365 libopus_encoder_deps="libopus"
2366 libopus_encoder_select="audio_frame_queue"
2367 libschroedinger_decoder_deps="libschroedinger"
2368 libschroedinger_encoder_deps="libschroedinger"
2369 libspeex_decoder_deps="libspeex"
2370 libspeex_encoder_deps="libspeex"
2371 libspeex_encoder_select="audio_frame_queue"
2372 libtheora_encoder_deps="libtheora"
2373 libtwolame_encoder_deps="libtwolame"
2374 libvo_aacenc_encoder_deps="libvo_aacenc"
2375 libvo_aacenc_encoder_select="audio_frame_queue"
2376 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2377 libvorbis_encoder_deps="libvorbis"
2378 libvorbis_encoder_select="audio_frame_queue"
2379 libvpx_vp8_decoder_deps="libvpx"
2380 libvpx_vp8_encoder_deps="libvpx"
2381 libvpx_vp9_decoder_deps="libvpx"
2382 libvpx_vp9_encoder_deps="libvpx"
2383 libwavpack_encoder_deps="libwavpack"
2384 libwavpack_encoder_select="audio_frame_queue"
2385 libwebp_encoder_deps="libwebp"
2386 libx262_encoder_deps="libx262"
2387 libx264_encoder_deps="libx264"
2388 libx265_encoder_deps="libx265"
2389 libxavs_encoder_deps="libxavs"
2390 libxvid_encoder_deps="libxvid mkstemp"
2391
2392 # demuxers / muxers
2393 ac3_demuxer_select="ac3_parser"
2394 asf_demuxer_select="riffdec"
2395 asf_muxer_select="riffenc"
2396 asf_stream_muxer_select="asf_muxer"
2397 avi_demuxer_select="iso_media riffdec"
2398 avi_muxer_select="riffenc"
2399 caf_demuxer_select="iso_media riffdec"
2400 dash_muxer_select="mp4_muxer"
2401 dirac_demuxer_select="dirac_parser"
2402 dv_demuxer_select="dvprofile"
2403 dv_muxer_select="dvprofile"
2404 dxa_demuxer_select="riffdec"
2405 eac3_demuxer_select="ac3_parser"
2406 f4v_muxer_select="mov_muxer"
2407 flac_demuxer_select="flac_parser"
2408 hds_muxer_select="flv_muxer"
2409 hls_muxer_select="mpegts_muxer"
2410 ipod_muxer_select="mov_muxer"
2411 ismv_muxer_select="mov_muxer"
2412 matroska_audio_muxer_select="matroska_muxer"
2413 matroska_demuxer_select="iso_media riffdec"
2414 matroska_demuxer_suggest="bzlib lzo zlib"
2415 matroska_muxer_select="iso_media riffenc"
2416 mmf_muxer_select="riffenc"
2417 mov_demuxer_select="iso_media riffdec"
2418 mov_demuxer_suggest="zlib"
2419 mov_muxer_select="iso_media riffenc rtpenc_chain"
2420 mp3_demuxer_select="mpegaudio_parser"
2421 mp3_muxer_select="mpegaudioheader"
2422 mp4_muxer_select="mov_muxer"
2423 mpegts_demuxer_select="iso_media"
2424 mpegts_muxer_select="adts_muxer latm_muxer"
2425 mpegtsraw_demuxer_select="mpegts_demuxer"
2426 mxf_d10_muxer_select="mxf_muxer"
2427 nut_muxer_select="riffenc"
2428 nuv_demuxer_select="riffdec"
2429 oga_muxer_select="ogg_muxer"
2430 ogg_demuxer_select="dirac_parse"
2431 opus_muxer_select="ogg_muxer"
2432 psp_muxer_select="mov_muxer"
2433 rtp_demuxer_select="sdp_demuxer"
2434 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2435 rtsp_demuxer_select="http_protocol rtpdec"
2436 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2437 sap_demuxer_select="sdp_demuxer"
2438 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2439 sdp_demuxer_select="rtpdec"
2440 smoothstreaming_muxer_select="ismv_muxer"
2441 spdif_demuxer_select="adts_header"
2442 spdif_muxer_select="adts_header"
2443 spx_muxer_select="ogg_muxer"
2444 swf_demuxer_suggest="zlib"
2445 tak_demuxer_select="tak_parser"
2446 tg2_muxer_select="mov_muxer"
2447 tgp_muxer_select="mov_muxer"
2448 w64_demuxer_select="wav_demuxer"
2449 wav_demuxer_select="riffdec"
2450 wav_muxer_select="riffenc"
2451 webm_muxer_select="iso_media riffenc"
2452 wtv_demuxer_select="mpegts_demuxer riffdec"
2453 xmv_demuxer_select="riffdec"
2454 xwma_demuxer_select="riffdec"
2455
2456 # indevs / outdevs
2457 alsa_indev_deps="alsa"
2458 alsa_outdev_deps="alsa"
2459 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2460 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2461 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2462 dv1394_indev_deps="dv1394"
2463 dv1394_indev_select="dv_demuxer"
2464 fbdev_indev_deps="linux_fb_h"
2465 jack_indev_deps="libjack"
2466 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2467 libcdio_indev_deps="libcdio"
2468 libdc1394_indev_deps="libdc1394"
2469 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2470 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2471 pulse_indev_deps="libpulse"
2472 sndio_indev_deps="sndio"
2473 sndio_outdev_deps="sndio"
2474 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2475 vfwcap_indev_deps="vfw32 vfwcap_defines"
2476 xcbgrab_indev_deps="libxcb libxcb_shape"
2477 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2478
2479 # protocols
2480 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2481 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2482 ffrtmpcrypt_protocol_select="tcp_protocol"
2483 ffrtmphttp_protocol_conflict="librtmp_protocol"
2484 ffrtmphttp_protocol_select="http_protocol"
2485 gopher_protocol_select="network"
2486 http_protocol_select="tcp_protocol"
2487 http_protocol_suggest="zlib"
2488 httpproxy_protocol_select="tcp_protocol"
2489 httpproxy_protocol_suggest="zlib"
2490 https_protocol_select="tls_protocol"
2491 https_protocol_suggest="zlib"
2492 icecast_protocol_select="http_protocol"
2493 librtmp_protocol_deps="librtmp"
2494 librtmpe_protocol_deps="librtmp"
2495 librtmps_protocol_deps="librtmp"
2496 librtmpt_protocol_deps="librtmp"
2497 librtmpte_protocol_deps="librtmp"
2498 mmsh_protocol_select="http_protocol"
2499 mmst_protocol_select="network"
2500 rtmp_protocol_conflict="librtmp_protocol"
2501 rtmp_protocol_select="tcp_protocol"
2502 rtmp_protocol_suggest="zlib"
2503 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2504 rtmpe_protocol_suggest="zlib"
2505 rtmps_protocol_conflict="librtmp_protocol"
2506 rtmps_protocol_select="tls_protocol"
2507 rtmps_protocol_suggest="zlib"
2508 rtmpt_protocol_select="ffrtmphttp_protocol"
2509 rtmpt_protocol_suggest="zlib"
2510 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2511 rtmpte_protocol_suggest="zlib"
2512 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2513 rtmpts_protocol_suggest="zlib"
2514 rtp_protocol_select="udp_protocol"
2515 sctp_protocol_deps="struct_sctp_event_subscribe"
2516 sctp_protocol_select="network"
2517 srtp_protocol_select="rtp_protocol srtp"
2518 tcp_protocol_select="network"
2519 tls_protocol_deps_any="gnutls openssl"
2520 tls_protocol_select="tcp_protocol"
2521 udp_protocol_select="network"
2522 unix_protocol_deps="sys_un_h"
2523 unix_protocol_select="network"
2524
2525 # filters
2526 asyncts_filter_deps="avresample"
2527 blackframe_filter_deps="gpl"
2528 boxblur_filter_deps="gpl"
2529 bs2b_filter_deps="libbs2b"
2530 cropdetect_filter_deps="gpl"
2531 deinterlace_qsv_filter_deps="libmfx"
2532 deinterlace_vaapi_filter_deps="vaapi"
2533 delogo_filter_deps="gpl"
2534 drawtext_filter_deps="libfreetype"
2535 drawtext_filter_suggest="libfontconfig"
2536 frei0r_filter_deps="frei0r libdl"
2537 frei0r_src_filter_deps="frei0r libdl"
2538 hdcd_filter_deps="libhdcd"
2539 hqdn3d_filter_deps="gpl"
2540 interlace_filter_deps="gpl"
2541 movie_filter_deps="avcodec avformat"
2542 ocv_filter_deps="libopencv"
2543 overlay_qsv_filter_deps="libmfx"
2544 overlay_qsv_filter_select="qsvvpp"
2545 resample_filter_deps="avresample"
2546 scale_filter_deps="swscale"
2547 scale_qsv_filter_deps="libmfx"
2548 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2549 vpp_qsv_filter_deps="libmfx"
2550 vpp_qsv_filter_select="qsvvpp"
2551
2552 # examples
2553 decode_audio_example_deps="avcodec avutil"
2554 decode_video_example_deps="avcodec avutil"
2555 encode_audio_example_deps="avcodec avutil"
2556 encode_video_example_deps="avcodec avutil"
2557 filter_audio_example_deps="avfilter avutil"
2558 metadata_example_deps="avformat avutil"
2559 output_example_deps="avcodec avformat avresample avutil swscale"
2560 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2561 transcode_aac_example_deps="avcodec avformat avresample"
2562
2563 # EXTRALIBS_LIST
2564 cpu_init_extralibs="pthreads_extralibs"
2565 cws2fws_extralibs="zlib_extralibs"
2566
2567 # libraries, in linking order
2568 avcodec_deps="avutil"
2569 avcodec_select="null_bsf"
2570 avdevice_deps="avformat avcodec avutil"
2571 avfilter_deps="avutil"
2572 avformat_deps="avcodec avutil"
2573 avformat_suggest="network"
2574 avresample_deps="avutil"
2575 swscale_deps="avutil"
2576
2577 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2578 avdevice_extralibs="libm_extralibs"
2579 avformat_extralibs="libm_extralibs"
2580 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2581 avresample_extralibs="libm_extralibs"
2582 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2583 swscale_extralibs="libm_extralibs"
2584
2585 # programs
2586 avconv_deps="avcodec avfilter avformat avresample swscale"
2587 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2588 fps_filter null_filter resample_filter scale_filter
2589 trim_filter"
2590 avconv_suggest="psapi shell32"
2591 avplay_deps="avcodec avfilter avformat avresample sdl"
2592 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2593 avplay_suggest="shell32"
2594 avprobe_deps="avcodec avformat"
2595 avprobe_suggest="shell32"
2596
2597 # documentation
2598 pod2man_deps="doc"
2599 texi2html_deps="doc"
2600
2601 # default parameters
2602
2603 logfile="avbuild/config.log"
2604
2605 # installation paths
2606 prefix_default="/usr/local"
2607 bindir_default='${prefix}/bin'
2608 datadir_default='${prefix}/share/avconv'
2609 docdir_default='${prefix}/share/doc/libav'
2610 incdir_default='${prefix}/include'
2611 libdir_default='${prefix}/lib'
2612 mandir_default='${prefix}/share/man'
2613 shlibdir_default="$libdir_default"
2614
2615 # toolchain
2616 ar_default="ar"
2617 cc_default="gcc"
2618 host_cc_default="gcc"
2619 x86asmexe_default="nasm"
2620 ln_s="ln -s -f"
2621 nm_default="nm -g"
2622 pkg_config_default=pkg-config
2623 ranlib="ranlib"
2624 strip="strip"
2625 version_script='--version-script'
2626
2627 # machine
2628 arch_default=$(uname -m)
2629 cpu="generic"
2630 intrinsics="none"
2631
2632 # OS
2633 target_os_default=$(tolower $(uname -s))
2634 host_os=$target_os_default
2635
2636 # configurable options
2637 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2638
2639 enable asm
2640 enable debug
2641 enable doc
2642 enable faan faandct faanidct
2643 enable optimizations
2644 enable safe_bitstream_reader
2645 enable static
2646 enable swscale_alpha
2647 enable valgrind_backtrace
2648
2649 # By default, enable only those hwaccels that have no external dependencies.
2650 enable d3d11va dxva2 vda vdpau
2651
2652 # internal components are enabled by default
2653 enable $EXTRALIBS_LIST
2654
2655 # Avoid external, non-system, libraries getting enabled by dependency resolution
2656 disable $EXTERNAL_LIBRARY_LIST
2657
2658 # build settings
2659 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2660 LIBPREF="lib"
2661 LIBSUF=".a"
2662 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2663 SLIBPREF="lib"
2664 SLIBSUF=".so"
2665 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2666 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2667 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2668 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2669 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2670 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2671 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2672
2673 asflags_filter=echo
2674 cflags_filter=echo
2675 ldflags_filter=echo
2676
2677 AS_C='-c'
2678 AS_O='-o $@'
2679 CC_C='-c'
2680 CC_E='-E -o $@'
2681 CC_O='-o $@'
2682 OBJCC_C='-c'
2683 OBJCC_E='-E -o $@'
2684 OBJCC_O='-o $@'
2685 X86ASM_O='-o $@'
2686 LD_O='-o $@'
2687 LD_LIB='-l%'
2688 LD_PATH='-L'
2689 HOSTCC_C='-c'
2690 HOSTCC_E='-E -o $@'
2691 HOSTCC_O='-o $@'
2692 HOSTLD_O='-o $@'
2693
2694 host_extralibs='-lm'
2695 host_cflags_filter=echo
2696 host_ldflags_filter=echo
2697
2698 target_path='$(CURDIR)'
2699
2700 # since the object filename is not given with the -MM flag, the compiler
2701 # is only able to print the basename, and we must add the path ourselves
2702 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2703 DEPFLAGS='-MM'
2704
2705 mkdir -p avbuild
2706
2707 # find source path
2708 if test -f configure; then
2709 source_path=.
2710 else
2711 source_path=$(cd $(dirname "$0"); pwd)
2712 echo "$source_path" | grep -q '[[:blank:]]' &&
2713 die "Out of tree builds are impossible with whitespace in source path."
2714 test -e "$source_path/config.h" &&
2715 die "Out of tree builds are impossible with config.h in source dir."
2716 fi
2717
2718 for v in "$@"; do
2719 r=${v#*=}
2720 l=${v%"$r"}
2721 r=$(sh_quote "$r")
2722 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2723 done
2724
2725 find_things(){
2726 thing=$1
2727 pattern=$2
2728 file=$source_path/$3
2729 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2730 }
2731
2732 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2733 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2734 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2735 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2736 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2737 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2738 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2739 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2740 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2741
2742 find_things_extern(){
2743 thing=$1
2744 pattern=$2
2745 file=$source_path/$3
2746 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2747 }
2748
2749 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2750 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2751
2752 AVCODEC_COMPONENTS_LIST="
2753 $BSF_LIST
2754 $DECODER_LIST
2755 $ENCODER_LIST
2756 $HWACCEL_LIST
2757 $PARSER_LIST
2758 "
2759
2760 AVDEVICE_COMPONENTS_LIST="
2761 $INDEV_LIST
2762 $OUTDEV_LIST
2763 "
2764
2765 AVFILTER_COMPONENTS_LIST="
2766 $FILTER_LIST
2767 "
2768
2769 AVFORMAT_COMPONENTS_LIST="
2770 $DEMUXER_LIST
2771 $MUXER_LIST
2772 $PROTOCOL_LIST
2773 "
2774
2775 ALL_COMPONENTS="
2776 $AVCODEC_COMPONENTS_LIST
2777 $AVDEVICE_COMPONENTS_LIST
2778 $AVFILTER_COMPONENTS_LIST
2779 $AVFORMAT_COMPONENTS_LIST
2780 "
2781
2782 for n in $COMPONENT_LIST; do
2783 v=$(toupper ${n%s})_LIST
2784 eval enable \$$v
2785 eval ${n}_if_any="\$$v"
2786 done
2787
2788 enable $ARCH_EXT_LIST
2789
2790 die_unknown(){
2791 echo "Unknown option \"$1\"."
2792 echo "See $0 --help for available options."
2793 exit 1
2794 }
2795
2796 print_3_columns() {
2797 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2798 }
2799
2800 show_list() {
2801 suffix=_$1
2802 shift
2803 echo $* | sed s/$suffix//g | print_3_columns
2804 exit 0
2805 }
2806
2807 rand_list(){
2808 IFS=', '
2809 set -- $*
2810 unset IFS
2811 for thing; do
2812 comp=${thing%:*}
2813 prob=${thing#$comp}
2814 prob=${prob#:}
2815 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2816 echo "prob ${prob:-0.5}"
2817 printf '%s\n' $comp
2818 done
2819 }
2820
2821 do_random(){
2822 action=$1
2823 shift
2824 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2825 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2826 }
2827
2828 for opt do
2829 optval="${opt#*=}"
2830 case "$opt" in
2831 --extra-ldflags=*)
2832 add_ldflags $optval
2833 ;;
2834 --extra-ldexeflags=*)
2835 add_ldexeflags $optval
2836 ;;
2837 --extra-ldsoflags=*)
2838 add_ldsoflags $optval
2839 ;;
2840 --extra-libs=*)
2841 add_extralibs $optval
2842 ;;
2843 --disable-devices)
2844 disable $INDEV_LIST $OUTDEV_LIST
2845 ;;
2846 --enable-debug=*)
2847 debuglevel="$optval"
2848 ;;
2849 --disable-programs)
2850 disable $PROGRAM_LIST
2851 ;;
2852 --disable-everything)
2853 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2854 ;;
2855 --disable-all)
2856 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2857 disable $LIBRARY_LIST $PROGRAM_LIST doc
2858 ;;
2859 --enable-random|--disable-random)
2860 action=${opt%%-random}
2861 do_random ${action#--} $COMPONENT_LIST
2862 ;;
2863 --enable-random=*|--disable-random=*)
2864 action=${opt%%-random=*}
2865 do_random ${action#--} $optval
2866 ;;
2867 --enable-*=*|--disable-*=*)
2868 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2869 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2870 eval list=\$$(toupper $thing)_LIST
2871 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2872 $action $(filter "$name" $list)
2873 ;;
2874 --enable-avserver|--disable-avserver*)
2875 warn "avserver has been removed, the ${opt} option is only"\
2876 "provided for compatibility and will be removed in the future"
2877 ;;
2878 --enable-yasm|--disable-yasm)
2879 warn "The ${opt} option is only provided for compatibility and will be\n"\
2880 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2881 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2882 ;;
2883 --enable-?*|--disable-?*)
2884 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2885 if is_in $option $COMPONENT_LIST; then
2886 test $action = disable && action=unset
2887 eval $action \$$(toupper ${option%s})_LIST
2888 elif is_in $option $CMDLINE_SELECT; then
2889 $action $option
2890 else
2891 die_unknown $opt
2892 fi
2893 ;;
2894 --list-*)
2895 NAME="${opt#--list-}"
2896 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2897 NAME=${NAME%s}
2898 eval show_list $NAME \$$(toupper $NAME)_LIST
2899 ;;
2900 --help|-h) show_help
2901 ;;
2902 --quiet|-q) quiet=yes
2903 ;;
2904 *)
2905 optname="${opt%%=*}"
2906 optname="${optname#--}"
2907 optname=$(echo "$optname" | sed 's/-/_/g')
2908 if is_in $optname $CMDLINE_SET; then
2909 eval $optname='$optval'
2910 elif is_in $optname $CMDLINE_APPEND; then
2911 append $optname "$optval"
2912 else
2913 die_unknown $opt
2914 fi
2915 ;;
2916 esac
2917 done
2918
2919 for e in $env; do
2920 eval "export $e"
2921 done
2922
2923 disabled logging && logfile=/dev/null
2924
2925 # Die early if licensing-related configure options are incompatible.
2926 die_license_disabled() {
2927 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2928 }
2929
2930 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2931 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2932 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2933
2934 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2935
2936 enabled_all gnutls openssl &&
2937 die "GnuTLS and OpenSSL must not be enabled at the same time."
2938
2939 # Disable all the library-specific components if the library itself
2940 # is disabled, see AVCODEC_LIST and following _LIST variables.
2941
2942 disable_components(){
2943 disabled ${1} && disable $(
2944 eval components="\$$(toupper ${1})_COMPONENTS"
2945 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2946 )
2947 }
2948
2949 map 'disable_components $v' $LIBRARY_LIST
2950
2951 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2952 set >> $logfile
2953
2954 case "$toolchain" in
2955 *-asan)
2956 cc_default="${toolchain%-asan}"
2957 add_cflags -fsanitize=address
2958 add_ldflags -fsanitize=address
2959 ;;
2960 *-msan)
2961 cc_default="${toolchain%-msan}"
2962 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2963 add_ldflags -fsanitize=memory
2964 ;;
2965 *-tsan)
2966 cc_default="${toolchain%-tsan}"
2967 add_cflags -fsanitize=thread -fPIE
2968 add_ldflags -fsanitize=thread -pie
2969 case "$toolchain" in
2970 gcc-tsan)
2971 add_cflags -fPIC
2972 add_ldflags -fPIC
2973 ;;
2974 esac
2975 ;;
2976 *-usan)
2977 cc_default="${toolchain%-usan}"
2978 add_cflags -fsanitize=undefined
2979 add_ldflags -fsanitize=undefined
2980 case "$toolchain" in
2981 clang-usan)
2982 add_cflags -O1
2983 ;;
2984 esac
2985 ;;
2986 valgrind-*)
2987 target_exec_default="valgrind"
2988 case "$toolchain" in
2989 valgrind-massif)
2990 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2991 ;;
2992 valgrind-memcheck)
2993 target_exec_args="--track-origins=yes --leak-check=full"
2994 ;;
2995 esac
2996 ;;
2997 msvc)
2998 # Check whether the current MSVC version needs the C99 converter.
2999 # From MSVC 2013 (compiler major version 18) onwards, it does actually
3000 # support enough of C99 to build libav. Default to the new
3001 # behaviour if the regexp was unable to match anything, since this
3002 # successfully parses the version number of existing supported
3003 # versions that require the converter (MSVC 2010 and 2012).
3004 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3005 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3006 cc_default="cl"
3007 else
3008 cc_default="c99wrap cl"
3009 fi
3010 ld_default="$source_path/compat/windows/mslink"
3011 nm_default="dumpbin -symbols"
3012 ar_default="lib"
3013 case "$arch" in
3014 arm*)
3015 as_default="armasm"
3016 ;;
3017 esac
3018 target_os_default="win32"
3019 # Use a relative path for TMPDIR. This makes sure all the
3020 # ffconf temp files are written with a relative path, avoiding
3021 # issues with msys/win32 path conversion for MSVC parameters
3022 # such as -Fo<file> or -out:<file>.
3023 TMPDIR=.
3024 ;;
3025 icl)
3026 cc_default="icl"
3027 ld_default="xilink"
3028 nm_default="dumpbin -symbols"
3029 ar_default="xilib"
3030 target_os_default="win32"
3031 TMPDIR=.
3032 ;;
3033 gcov)
3034 add_cflags -fprofile-arcs -ftest-coverage
3035 add_ldflags -fprofile-arcs -ftest-coverage
3036 ;;
3037 llvm-cov)
3038 add_cflags -fprofile-arcs -ftest-coverage
3039 add_ldflags --coverage
3040 ;;
3041 hardened)
3042 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3043 add_cflags -fno-strict-overflow -fstack-protector-all
3044 add_ldflags -Wl,-z,relro -Wl,-z,now
3045 ;;
3046 ?*)
3047 die "Unknown toolchain $toolchain"
3048 ;;
3049 esac
3050
3051 test -n "$cross_prefix" && enable cross_compile
3052
3053 if enabled cross_compile; then
3054 test -n "$arch" && test -n "$target_os" ||
3055 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3056 fi
3057
3058 ar_default="${cross_prefix}${ar_default}"
3059 cc_default="${cross_prefix}${cc_default}"
3060 objcc_default="${cross_prefix}${objcc_default}"
3061 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3062 nm_default="${cross_prefix}${nm_default}"
3063 pkg_config_default="${cross_prefix}${pkg_config_default}"
3064 ranlib="${cross_prefix}${ranlib}"
3065 strip="${cross_prefix}${strip}"
3066
3067 sysinclude_default="${sysroot}/usr/include"
3068
3069 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3070 enabled cross_compile || host_cc_default=$cc
3071 set_default host_cc
3072
3073 if ! $pkg_config --version >/dev/null 2>&1; then
3074 warn "$pkg_config not found, library detection may fail."
3075 pkg_config=false
3076 fi
3077
3078 exesuf() {
3079 case $1 in
3080 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3081 esac
3082 }
3083
3084 EXESUF=$(exesuf $target_os)
3085 HOSTEXESUF=$(exesuf $host_os)
3086
3087 # set temporary file name
3088 : ${TMPDIR:=$TEMPDIR}
3089 : ${TMPDIR:=$TMP}
3090 : ${TMPDIR:=/tmp}
3091
3092 if ! check_cmd mktemp -u XXXXXX; then
3093 # simple replacement for missing mktemp
3094 # NOT SAFE FOR GENERAL USE
3095 mktemp(){
3096 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3097 echo "$tmpname"
3098 mkdir "$tmpname"
3099 }
3100 fi
3101
3102 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3103 die "Unable to create temporary directory in $TMPDIR."
3104
3105 tmpfile(){
3106 tmp="${AVTMPDIR}/test"$2
3107 (set -C; exec > $tmp) 2> /dev/null ||
3108 die "Unable to create temporary file in $AVTMPDIR."
3109 eval $1=$tmp
3110 }
3111
3112 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3113 trap 'exit 2' INT
3114
3115 tmpfile TMPASM .asm
3116 tmpfile TMPC .c
3117 tmpfile TMPE $EXESUF
3118 tmpfile TMPH .h
3119 tmpfile TMPO .o
3120 tmpfile TMPS .S
3121 tmpfile TMPSH .sh
3122 tmpfile TMPV .ver
3123
3124 unset -f mktemp
3125
3126 chmod +x $TMPE
3127
3128 # make sure we can execute files in $TMPDIR
3129 cat > $TMPSH 2>> $logfile <<EOF
3130 #! /bin/sh
3131 EOF
3132 chmod +x $TMPSH >> $logfile 2>&1
3133 if ! $TMPSH >> $logfile 2>&1; then
3134 cat <<EOF
3135 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3136 variable to another directory and make sure that it is not mounted noexec.
3137 EOF
3138 die "Sanity test failed."
3139 fi
3140
3141 armasm_flags(){
3142 for flag; do
3143 case $flag in
3144 # Filter out MSVC cl.exe options from cflags that shouldn't
3145 # be passed to gas-preprocessor
3146 -M[TD]*) ;;
3147 *) echo $flag ;;
3148 esac
3149 done
3150 }
3151
3152 cparser_flags(){
3153 for flag; do
3154 case $flag in
3155 -Wno-switch) echo -Wno-switch-enum ;;
3156 -Wno-format-zero-length) ;;
3157 -Wdisabled-optimization) ;;
3158 -Wno-pointer-sign) echo -Wno-other ;;
3159 *) echo $flag ;;
3160 esac
3161 done
3162 }
3163
3164 msvc_common_flags(){
3165 for flag; do
3166 case $flag in
3167 # In addition to specifying certain flags under the compiler
3168 # specific filters, they must be specified here as well or else the
3169 # generic catch all at the bottom will print the original flag.
3170 -Wall) ;;
3171 -Wextra) ;;
3172 -std=c99) ;;
3173 # Common flags
3174 -fomit-frame-pointer) ;;
3175 -g) echo -Z7 ;;
3176 -fno-math-errno) ;;
3177 -fno-common) ;;
3178 -fno-signed-zeros) ;;
3179 -fPIC) ;;
3180 -mthumb) ;;
3181 -march=*) ;;
3182 -lz) echo zlib.lib ;;
3183 -lx264) echo libx264.lib ;;
3184 -l*) echo ${flag#-l}.lib ;;
3185 -L*) echo -libpath:${flag#-L} ;;
3186 *) echo $flag ;;
3187 esac
3188 done
3189 }
3190
3191 msvc_flags(){
3192 msvc_common_flags "$@"
3193 for flag; do
3194 case $flag in
3195 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3196 -wd4554 ;;
3197 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3198 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3199 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3200 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3201 esac
3202 done
3203 }
3204
3205 icl_flags(){
3206 msvc_common_flags "$@"
3207 for flag; do
3208 case $flag in
3209 # Despite what Intel's documentation says -Wall, which is supported
3210 # on Windows, does enable remarks so disable them here.
3211 -Wall) echo $flag -Qdiag-disable:remark ;;
3212 -std=c99) echo -Qstd=c99 ;;
3213 esac
3214 done
3215 }
3216
3217 pgi_flags(){
3218 for flag; do
3219 case $flag in
3220 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3221 -fomit-frame-pointer) echo -Mnoframe ;;
3222 -g) echo -gopt ;;
3223 *) echo $flag ;;
3224 esac
3225 done
3226 }
3227
3228 suncc_flags(){
3229 for flag; do
3230 case $flag in
3231 -march=*|-mcpu=*)
3232 case "${flag#*=}" in
3233 native) echo -xtarget=native ;;
3234 v9|niagara) echo -xarch=sparc ;;
3235 ultrasparc) echo -xarch=sparcvis ;;
3236 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3237 i586|pentium) echo -xchip=pentium ;;
3238 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3239 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3240 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3241 pentium4*) echo -xtarget=pentium4 ;;
3242 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3243 *-sse3) echo -xarch=sse3 ;;
3244 core2) echo -xarch=ssse3 -xchip=core2 ;;
3245 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3246 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3247 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3248 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3249 k8|opteron|athlon64|athlon-fx)
3250 echo -xarch=sse2a ;;
3251 athlon*) echo -xarch=pentium_proa ;;
3252 esac
3253 ;;
3254 -std=c99) echo -xc99 ;;
3255 -fomit-frame-pointer) echo -xregs=frameptr ;;
3256 -fPIC) echo -KPIC -xcode=pic32 ;;
3257 -W*,*) echo $flag ;;
3258 -f*-*|-W*|-mimpure-text) ;;
3259 -shared) echo -G ;;
3260 *) echo $flag ;;
3261 esac
3262 done
3263 }
3264
3265 tms470_flags(){
3266 for flag; do
3267 case $flag in
3268 -march=*|-mcpu=*)
3269 case "${flag#*=}" in
3270 armv7-a|cortex-a*) echo -mv=7a8 ;;
3271 armv7-r|cortex-r*) echo -mv=7r4 ;;
3272 armv7-m|cortex-m*) echo -mv=7m3 ;;
3273 armv6*|arm11*) echo -mv=6 ;;
3274 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3275 echo -mv=5e ;;
3276 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3277 esac
3278 ;;
3279 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3280 -mfpu=vfp) echo --float_support=vfpv2 ;;
3281 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3282 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3283 -msoft-float) echo --float_support=vfplib ;;
3284 -O[0-3]|-mf=*) echo $flag ;;
3285 -g) echo -g -mn ;;
3286 -pds=*) echo $flag ;;
3287 -D*|-I*) echo $flag ;;
3288 --gcc|--abi=*) echo $flag ;;
3289 -me) echo $flag ;;
3290 esac
3291 done
3292 }
3293
3294 probe_cc(){
3295 pfx=$1
3296 _cc=$2
3297
3298 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3299 unset _ld_o _ldflags _ld_lib _ld_path
3300 unset _depflags _DEPCMD _DEPFLAGS
3301 _flags_filter=echo
3302
3303 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3304 _type=llvm_gcc
3305 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3306 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3307 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3308 _cflags_speed='-O3'
3309 _cflags_size='-Os'
3310 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3311 _type=gcc
3312 gcc_version=$($_cc --version | head -n1)
3313 gcc_basever=$($_cc -dumpversion)
3314 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3315 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3316 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3317 if ! $_cc -dumpversion | grep -q '^2\.'; then
3318 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3319 fi
3320 _cflags_speed='-O3'
3321 _cflags_size='-Os'
3322 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3323 _type=icc
3324 _ident=$($_cc --version | head -n1)
3325 _depflags='-MMD'
3326 _cflags_speed='-O3'
3327 _cflags_size='-Os'
3328 _cflags_noopt='-O1'
3329 elif $_cc -v 2>&1 | grep -q xlc; then
3330 _type=xlc
3331 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3332 _cflags_speed='-O5'
3333 _cflags_size='-O5 -qcompact'
3334 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3335 test -d "$sysroot" || die "No valid sysroot specified."
3336 _type=armcc
3337 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3338 armcc_conf="$PWD/armcc.conf"
3339 $_cc --arm_linux_configure \
3340 --arm_linux_config_file="$armcc_conf" \
3341 --configure_sysroot="$sysroot" \
3342 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3343 die "Error creating armcc configuration file."
3344 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3345 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3346 as_default="${cross_prefix}gcc"
3347 _depflags='-MMD'
3348 _cflags_speed='-O3'
3349 _cflags_size='-Os'
3350 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3351 _type=tms470
3352 _ident=$($_cc -version | head -n1 | tr -s ' ')
3353 _flags='--gcc --abi=eabi -me'
3354 _cc_e='-ppl -fe=$@'
3355 _cc_o='-fe=$@'
3356 _depflags='-ppa -ppd=$(@:.o=.d)'
3357 _cflags_speed='-O3 -mf=5'
3358 _cflags_size='-O3 -mf=2'
3359 _flags_filter=tms470_flags
3360 elif $_cc -v 2>&1 | grep -q clang; then
3361 _type=clang
3362 _ident=$($_cc --version 2>/dev/null | head -n1)
3363 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3364 _cflags_speed='-O3'
3365 _cflags_size='-Os'
3366 elif $_cc -V 2>&1 | grep -q Sun; then
3367 _type=suncc
3368 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3369 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3370 _DEPFLAGS='-xM1 -xc99'
3371 _ldflags='-std=c99'
3372 _cflags_speed='-O5'
3373 _cflags_size='-O5 -xspace'
3374 _flags_filter=suncc_flags
3375 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3376 _type=pathscale
3377 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3378 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3379 _cflags_speed='-O2'
3380 _cflags_size='-Os'
3381 _flags_filter='filter_out -Wdisabled-optimization'
3382 elif $_cc -v 2>&1 | grep -q Open64; then
3383 _type=open64
3384 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3385 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3386 _cflags_speed='-O2'
3387 _cflags_size='-Os'
3388 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3389 elif $_cc -V 2>&1 | grep -q Portland; then
3390 _type=pgi
3391 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3392 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3393 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3394 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3395 _cflags_noopt="-O1"
3396 _flags_filter=pgi_flags
3397 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3398 _type=armasm
3399 _ident=$($_cc | head -n1)
3400 # 4509: "This form of conditional instruction is deprecated"
3401 _flags="-nologo -ignore 4509"
3402 _flags_filter=armasm_flags
3403 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3404 _type=msvc
3405 _ident=$($_cc 2>&1 | head -n1)
3406 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3407 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3408 _cflags_speed="-O2"
3409 _cflags_size="-O1"
3410 _cflags_noopt="-O1"
3411 if $_cc -nologo- 2>&1 | grep -q Linker; then
3412 _ld_o='-out:$@'
3413 else
3414 _ld_o='-Fe$@'
3415 fi
3416 _cc_o='-Fo$@'
3417 _cc_e='-P -Fi$@'
3418 _flags_filter=msvc_flags
3419 _ld_lib='lib%.a'
3420 _ld_path='-libpath:'
3421 _flags='-nologo'
3422 elif $_cc 2>&1 | grep -q Intel; then
3423 _type=icl
3424 _ident=$($_cc 2>&1 | head -n1)
3425 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3426 # Not only is O3 broken on 13.x+ but it is slower on all previous
3427 # versions (tested) as well.
3428 _cflags_speed="-O2"
3429 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3430 if $_cc 2>&1 | grep -q Linker; then
3431 _ld_o='-out:$@'
3432 else
3433 _ld_o='-Fe$@'
3434 fi
3435 _cc_o='-Fo$@'
3436 _cc_e='-P'
3437 _flags_filter=icl_flags
3438 _ld_lib='lib%.a'
3439 _ld_path='-libpath:'
3440 # -Qdiag-error to make icl error when seeing certain unknown arguments
3441 _flags='-nologo -Qdiag-error:4044,10157'
3442 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3443 # with MSVC which enables it by default.
3444 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3445 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3446 # lld can emulate multiple different linkers; in ms link.exe mode,
3447 # the -? parameter gives the help output which contains an identifyable
3448 # string, while it gives an error in other modes.
3449 _type=lld-link
3450 # The link.exe mode doesn't have a switch for getting the version,
3451 # but we can force it back to gnu mode and get the version from there.
3452 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3453 _ld_o='-out:$@'
3454 _flags_filter=msvc_flags
3455 _ld_lib='lib%.a'
3456 _ld_path='-libpath:'
3457 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3458 _type=cparser
3459 _ident=$($_cc --version | head -n1)
3460 _depflags='-MMD'
3461 _cflags_speed='-O4'
3462 _cflags_size='-O2'
3463 _flags_filter=cparser_flags
3464 fi
3465
3466 eval ${pfx}_type=\$_type
3467 eval ${pfx}_ident=\$_ident
3468 }
3469
3470 set_ccvars(){
3471 eval ${1}_C=\${_cc_c-\${${1}_C}}
3472 eval ${1}_E=\${_cc_e-\${${1}_E}}
3473 eval ${1}_O=\${_cc_o-\${${1}_O}}
3474
3475 if [ -n "$_depflags" ]; then
3476 eval ${1}_DEPFLAGS=\$_depflags
3477 else
3478 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3479 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3480 eval DEP${1}FLAGS=\$_flags
3481 fi
3482 }
3483
3484 probe_cc cc "$cc"
3485 cflags_filter=$_flags_filter
3486 cflags_speed=$_cflags_speed
3487 cflags_size=$_cflags_size
3488 cflags_noopt=$_cflags_noopt
3489 add_cflags $_flags $_cflags
3490 cc_ldflags=$_ldflags
3491 set_ccvars CC
3492
3493 probe_cc hostcc "$host_cc"
3494 host_cflags_filter=$_flags_filter
3495 host_cflags_speed=$_cflags_speed
3496 add_host_cflags $_flags $_cflags
3497 set_ccvars HOSTCC
3498
3499 test -n "$cc_type" && enable $cc_type ||
3500 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3501
3502 : ${as_default:=$cc}
3503 : ${objcc_default:=$cc}
3504 : ${dep_cc_default:=$cc}
3505 : ${ld_default:=$cc}
3506 : ${host_ld_default:=$host_cc}
3507 set_default ar as objcc dep_cc ld host_ld
3508
3509 probe_cc as "$as"
3510 asflags_filter=$_flags_filter
3511 add_asflags $_flags $_cflags
3512 set_ccvars AS
3513
3514 probe_cc objcc "$objcc"
3515 objcflags_filter=$_flags_filter
3516 add_objcflags $_flags $_cflags
3517 set_ccvars OBJC
3518
3519 probe_cc ld "$ld"
3520 ldflags_filter=$_flags_filter
3521 add_ldflags $_flags $_ldflags
3522 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3523 LD_O=${_ld_o-$LD_O}
3524 LD_LIB=${_ld_lib-$LD_LIB}
3525 LD_PATH=${_ld_path-$LD_PATH}
3526
3527 probe_cc hostld "$host_ld"
3528 host_ldflags_filter=$_flags_filter
3529 add_host_ldflags $_flags $_ldflags
3530 HOSTLD_O=${_ld_o-$HOSTLD_O}
3531
3532 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3533 probe_cc depcc "$dep_cc"
3534 CCDEP=${_DEPCMD:-$DEPCMD}
3535 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3536 DEPCCFLAGS=$_flags
3537 fi
3538
3539 if $ar 2>&1 | grep -q Microsoft; then
3540 arflags="-nologo"
3541 ar_o='-out:$@'
3542 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3543 arflags="rq"
3544 ar_o='$@'
3545 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3546 arflags='-Xany -r -c'
3547 ar_o='$@'
3548 else
3549 arflags="rc"
3550 ar_o='$@'
3551 fi
3552
3553 add_cflags $extra_cflags
3554 add_objcflags $extra_objcflags
3555 add_asflags $extra_cflags
3556
3557 if test -n "$sysroot"; then
3558 case "$cc_type" in
3559 gcc|llvm_gcc|clang)
3560 add_cppflags --sysroot="$sysroot"
3561 add_ldflags --sysroot="$sysroot"
3562 ;;
3563 tms470)
3564 add_cppflags -I"$sysinclude"
3565 add_ldflags --sysroot="$sysroot"
3566 ;;
3567 esac
3568 fi
3569
3570 if test "$cpu" = host; then
3571 enabled cross_compile &&
3572 die "--cpu=host makes no sense when cross-compiling."
3573
3574 case "$cc_type" in
3575 gcc|llvm_gcc)
3576 check_native(){
3577 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3578 sed -n "/cc1.*$1=/{
3579 s/.*$1=\\([^ ]*\\).*/\\1/
3580 p
3581 q
3582 }" $TMPE
3583 }
3584 cpu=$(check_native -march || check_native -mcpu)
3585 ;;
3586 esac
3587
3588 test "${cpu:-host}" = host &&
3589 die "--cpu=host not supported with compiler $cc"
3590 fi
3591
3592 # Deal with common $arch aliases
3593 case "$arch" in
3594 aarch64|arm64)
3595 arch="aarch64"
3596 ;;
3597 arm*)
3598 arch="arm"
3599 ;;
3600 mips*|IP*)
3601 case "$arch" in
3602 *el)
3603 add_cppflags -EL
3604 add_ldflags -EL
3605 ;;
3606 *eb)
3607 add_cppflags -EB
3608 add_ldflags -EB
3609 ;;
3610 esac
3611 arch="mips"
3612 ;;
3613 parisc*|hppa*)
3614 arch="parisc"
3615 ;;
3616 "Power Macintosh"|ppc*|powerpc*)
3617 arch="ppc"
3618 ;;
3619 s390|s390x)
3620 arch="s390"
3621 ;;
3622 sh4|sh)
3623 arch="sh4"
3624 ;;
3625 sun4u|sparc*)
3626 arch="sparc"
3627 ;;
3628 tilegx|tile-gx)
3629 arch="tilegx"
3630 ;;
3631 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3632 arch="x86"
3633 ;;
3634 esac
3635
3636 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3637 enable $arch
3638
3639 # Add processor-specific flags
3640 if enabled aarch64; then
3641
3642 case $cpu in
3643 armv*)
3644 cpuflags="-march=$cpu"
3645 ;;
3646 *)
3647 cpuflags="-mcpu=$cpu"
3648 ;;
3649 esac
3650
3651 elif enabled alpha; then
3652
3653 cpuflags="-mcpu=$cpu"
3654
3655 elif enabled arm; then
3656
3657 check_arm_arch() {
3658 check_cpp_condition stddef.h \
3659 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3660 $cpuflags
3661 }
3662
3663 probe_arm_arch() {
3664 if check_arm_arch 4; then echo armv4
3665 elif check_arm_arch 4T; then echo armv4t
3666 elif check_arm_arch 5; then echo armv5
3667 elif check_arm_arch 5E; then echo armv5e
3668 elif check_arm_arch 5T; then echo armv5t
3669 elif check_arm_arch 5TE; then echo armv5te
3670 elif check_arm_arch 5TEJ; then echo armv5te
3671 elif check_arm_arch 6; then echo armv6
3672 elif check_arm_arch 6J; then echo armv6j
3673 elif check_arm_arch 6K; then echo armv6k
3674 elif check_arm_arch 6Z; then echo armv6z
3675 elif check_arm_arch 6ZK; then echo armv6zk
3676 elif check_arm_arch 6T2; then echo armv6t2
3677 elif check_arm_arch 7; then echo armv7
3678 elif check_arm_arch 7A 7_A; then echo armv7-a
3679 elif check_arm_arch 7S; then echo armv7-a
3680 elif check_arm_arch 7R 7_R; then echo armv7-r
3681 elif check_arm_arch 7M 7_M; then echo armv7-m
3682 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3683 elif check_arm_arch 8A 8_A; then echo armv8-a
3684 fi
3685 }
3686
3687 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3688
3689 case $cpu in
3690 armv*)
3691 cpuflags="-march=$cpu"
3692 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3693 ;;
3694 *)
3695 cpuflags="-mcpu=$cpu"
3696 case $cpu in
3697 cortex-a*) subarch=armv7a ;;
3698 cortex-r*) subarch=armv7r ;;
3699 cortex-m*) enable thumb; subarch=armv7m ;;
3700 arm11*) subarch=armv6 ;;
3701 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3702 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3703 *) subarch=$(probe_arm_arch) ;;
3704 esac
3705 ;;
3706 esac
3707
3708 case "$subarch" in
3709 armv5t*) enable fast_clz ;;
3710 armv[6-8]*) enable fast_clz fast_unaligned ;;
3711 esac
3712
3713 elif enabled avr32; then
3714
3715 case $cpu in
3716 ap7[02]0[0-2])
3717 subarch="avr32_ap"
3718 cpuflags="-mpart=$cpu"
3719 ;;
3720 ap)
3721 subarch="avr32_ap"
3722 cpuflags="-march=$cpu"
3723 ;;
3724 uc3[ab]*)
3725 subarch="avr32_uc"
3726 cpuflags="-mcpu=$cpu"
3727 ;;
3728 uc)
3729 subarch="avr32_uc"
3730 cpuflags="-march=$cpu"
3731 ;;
3732 esac
3733
3734 elif enabled bfin; then
3735
3736 cpuflags="-mcpu=$cpu"
3737
3738 elif enabled mips; then
3739
3740 cpuflags="-march=$cpu"
3741
3742 elif enabled ppc; then
3743
3744 disable ldbrx
3745
3746 case $(tolower $cpu) in
3747 601|ppc601|powerpc601)
3748 cpuflags="-mcpu=601"
3749 disable altivec
3750 ;;
3751 603*|ppc603*|powerpc603*)
3752 cpuflags="-mcpu=603"
3753 disable altivec
3754 ;;
3755 604*|ppc604*|powerpc604*)
3756 cpuflags="-mcpu=604"
3757 disable altivec
3758 ;;
3759 g3|75*|ppc75*|powerpc75*)
3760 cpuflags="-mcpu=750"
3761 disable altivec
3762 ;;
3763 g4|745*|ppc745*|powerpc745*)
3764 cpuflags="-mcpu=7450"
3765 disable vsx
3766 ;;
3767 74*|ppc74*|powerpc74*)
3768 cpuflags="-mcpu=7400"
3769 disable vsx
3770 ;;
3771 g5|970|ppc970|powerpc970)
3772 cpuflags="-mcpu=970"
3773 disable vsx
3774 ;;
3775 power[3-6]*)
3776 cpuflags="-mcpu=$cpu"
3777 disable vsx
3778 ;;
3779 power[7-8]*)
3780 cpuflags="-mcpu=$cpu"
3781 enable ldbrx
3782 ;;
3783 cell)
3784 cpuflags="-mcpu=cell"
3785 enable ldbrx
3786 disable vsx
3787 ;;
3788 e500mc)
3789 cpuflags="-mcpu=e500mc"
3790 disable altivec
3791 ;;
3792 e500v2)
3793 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3794 disable altivec
3795 disable dcbzl
3796 ;;
3797 e500)
3798 cpuflags="-mcpu=8540 -mhard-float"
3799 disable altivec
3800 disable dcbzl
3801 ;;
3802 esac
3803
3804 elif enabled sparc; then
3805
3806 case $cpu in
3807 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3808 cpuflags="-mcpu=$cpu"
3809 ;;
3810 ultrasparc*|niagara[234])
3811 cpuflags="-mcpu=$cpu"
3812 ;;
3813 esac
3814
3815 elif enabled x86; then
3816
3817 case $cpu in
3818 i[345]86|pentium)
3819 cpuflags="-march=$cpu"
3820 disable i686
3821 disable mmx
3822 ;;
3823 # targets that do NOT support nopl and conditional mov (cmov)
3824 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3825 cpuflags="-march=$cpu"
3826 disable i686
3827 ;;
3828 # targets that do support nopl and conditional mov (cmov)
3829 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3830 cpuflags="-march=$cpu"
3831 enable i686
3832 enable fast_cmov
3833 ;;
3834 # targets that do support conditional mov but on which it's slow
3835 pentium4|pentium4m|prescott|nocona)
3836 cpuflags="-march=$cpu"
3837 enable i686
3838 disable fast_cmov
3839 ;;
3840 esac
3841
3842 fi
3843
3844 if [ "$cpu" != generic ]; then
3845 add_cflags $cpuflags
3846 add_asflags $cpuflags
3847 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3848 fi
3849
3850 # compiler sanity check
3851 check_exec <<EOF
3852 int main(void){ return 0; }
3853 EOF
3854 if test "$?" != 0; then
3855 echo "$cc is unable to create an executable file."
3856 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3857 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3858 echo "Only do this if you know what cross compiling means."
3859 fi
3860 die "C compiler test failed."
3861 fi
3862
3863 add_cppflags -D_ISOC99_SOURCE
3864
3865 # some compilers silently accept -std=c11, so we also need to check that the
3866 # version macro is defined properly
3867 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3868 add_cflags -std=c11 ||
3869 check_cflags -std=c99
3870
3871 check_cppflags -D_FILE_OFFSET_BITS=64
3872 check_cppflags -D_LARGEFILE_SOURCE
3873
3874 add_host_cppflags -D_ISOC99_SOURCE
3875 check_host_cflags -std=c99
3876 check_host_cflags -Wall
3877 check_host_cflags $host_cflags_speed
3878
3879 check_64bit(){
3880 arch32=$1
3881 arch64=$2
3882 expr=$3
3883 check_code cc "" "int test[2*($expr) - 1]" &&
3884 subarch=$arch64 || subarch=$arch32
3885 }
3886
3887 case "$arch" in
3888 aarch64|alpha|ia64)
3889 spic=$shared
3890 ;;
3891 mips)
3892 check_64bit mips mips64 '_MIPS_SIM > 1'
3893 spic=$shared
3894 ;;
3895 parisc)
3896 check_64bit parisc parisc64 'sizeof(void *) > 4'
3897 spic=$shared
3898 ;;
3899 ppc)
3900 check_64bit ppc ppc64 'sizeof(void *) > 4'
3901 spic=$shared
3902 ;;
3903 s390)
3904 check_64bit s390 s390x 'sizeof(void *) > 4'
3905 spic=$shared
3906 ;;
3907 sparc)
3908 check_64bit sparc sparc64 'sizeof(void *) > 4'
3909 spic=$shared
3910 ;;
3911 x86)
3912 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3913 if test "$subarch" = "x86_64"; then
3914 spic=$shared
3915 fi
3916 ;;
3917 esac
3918
3919 enable $subarch
3920 enabled spic && enable_weak pic
3921
3922 enabled x86_64 && objformat=elf64 || objformat="elf32"
3923
3924 # OS specific
3925 case $target_os in
3926 aix)
3927 SHFLAGS=-shared
3928 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3929 enabled shared && add_ldflags -Wl,-brtl
3930 ;;
3931 android)
3932 disable symver
3933 enable section_data_rel_ro
3934 SLIB_INSTALL_NAME='$(SLIBNAME)'
3935 SLIB_INSTALL_LINKS=
3936 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3937 ;;
3938 haiku)
3939 prefix_default="/boot/common"
3940 network_extralibs="-lnetwork"
3941 host_extralibs=
3942 ;;
3943 sunos)
3944 SHFLAGS='-shared -Wl,-h,$$(@F)'
3945 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3946 network_extralibs="-lsocket -lnsl"
3947 # When using suncc to build, the Solaris linker will mark
3948 # an executable with each instruction set encountered by
3949 # the Solaris assembler. As our libraries contain their own
3950 # guards for processor-specific code, instead suppress
3951 # generation of the HWCAPS ELF section on Solaris x86 only.
3952 enabled_all suncc x86 &&
3953 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3954 add_ldflags -Wl,-M,mapfile
3955 nm_default='nm -P -g'
3956 version_script='-M'
3957 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3958 ;;
3959 netbsd)
3960 disable symver
3961 oss_indev_extralibs="-lossaudio"
3962 oss_outdev_extralibs="-lossaudio"
3963 ;;
3964 openbsd|bitrig)
3965 disable symver
3966 SHFLAGS='-shared'
3967 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3968 SLIB_INSTALL_LINKS=
3969 oss_indev_extralibs="-lossaudio"
3970 oss_outdev_extralibs="-lossaudio"
3971 ;;
3972 dragonfly)
3973 disable symver
3974 ;;
3975 freebsd)
3976 ;;
3977 bsd/os)
3978 add_extralibs -lpoll -lgnugetopt
3979 ;;
3980 darwin)
3981 enabled ppc && add_asflags -force_cpusubtype_ALL
3982 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3983 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3984 add_ldflags -Wl,-dynamic,-search_paths_first
3985 check_cflags -Werror=partial-availability
3986 SLIBSUF=".dylib"
3987 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3988 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3989 enabled x86_64 && objformat="macho64" || objformat="macho32"
3990 enabled_any pic shared ||
3991 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3992 check_header dispatch/dispatch.h &&
3993 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3994 if test -n "$sysroot"; then
3995 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3996 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3997 fi
3998 ;;
3999 msys*)
4000 die "Native MSYS builds are discouraged, please use the MINGW environment."
4001 ;;
4002 mingw32*|mingw64*)
4003 target_os=mingw32
4004 LIBTARGET=i386
4005 if enabled x86_64; then
4006 LIBTARGET="i386:x86-64"
4007 fi
4008 if enabled shared; then
4009 # Cannot build both shared and static libs when using dllexport.
4010 disable static
4011 fi
4012 check_ldflags -Wl,--nxcompat
4013 check_ldflags -Wl,--dynamicbase
4014 shlibdir_default="$bindir_default"
4015 SLIBPREF=""
4016 SLIBSUF=".dll"
4017 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4018 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4019 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4020 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4021 SLIB_INSTALL_LINKS=
4022 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4023 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4024 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4025 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4026 enabled x86_64 && objformat="win64" || objformat="win32"
4027 dlltool="${cross_prefix}dlltool"
4028 ranlib=:
4029 enable dos_paths
4030 ;;
4031 win32|win64)
4032 disable symver
4033 if enabled shared; then
4034 # Link to the import library instead of the normal static library
4035 # for shared libs.
4036 LD_LIB='%.lib'
4037 # Cannot build both shared and static libs with MSVC or icl.
4038 disable static
4039 fi
4040 shlibdir_default="$bindir_default"
4041 SLIBPREF=""
4042 SLIBSUF=".dll"
4043 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4044 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4045 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4046 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4047 SLIB_INSTALL_LINKS=
4048 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4049 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4050 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4051 enabled x86_64 && objformat="win64" || objformat="win32"
4052 ranlib=:
4053 enable dos_paths
4054 ;;
4055 cygwin*)
4056 target_os=cygwin
4057 shlibdir_default="$bindir_default"
4058 SLIBPREF="cyg"
4059 SLIBSUF=".dll"
4060 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4061 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4062 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4063 SLIB_INSTALL_LINKS=
4064 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4065 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4066 enabled x86_64 && objformat="win64" || objformat="win32"
4067 enable dos_paths
4068 ;;
4069 *-dos|freedos|opendos)
4070 network_extralibs="-lsocket"
4071 objformat="coff"
4072 enable dos_paths
4073 add_cppflags -U__STRICT_ANSI__
4074 ;;
4075 linux)
4076 enable dv1394
4077 enable section_data_rel_ro
4078 ;;
4079 irix*)
4080 target_os=irix
4081 ranlib="echo ignoring ranlib"
4082 ;;
4083 os/2*)
4084 ln_s="cp -f"
4085 objformat="aout"
4086 add_cppflags -D_GNU_SOURCE
4087 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4088 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4089 LIBSUF="_s.a"
4090 SLIBPREF=""
4091 SLIBSUF=".dll"
4092 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4093 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4094 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4095 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4096 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4097 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4098 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4099 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4100 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4101 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4102 enable dos_paths
4103 ;;
4104 gnu/kfreebsd)
4105 add_cppflags -D_BSD_SOURCE
4106 ;;
4107 gnu)
4108 ;;
4109 qnx)
4110 add_cppflags -D_QNX_SOURCE
4111 network_extralibs="-lsocket"
4112 ;;
4113 symbian)
4114 SLIBSUF=".dll"
4115 enable dos_paths
4116 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4117 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4118 add_ldflags -Wl,--target1-abs,--no-undefined \
4119 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4120 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4121 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4122 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4123 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4124 ;;
4125 minix)
4126 ;;
4127 none)
4128 ;;
4129 *)
4130 die "Unknown OS '$target_os'."
4131 ;;
4132 esac
4133
4134 # determine libc flavour
4135
4136 probe_libc(){
4137 pfx=$1
4138 pfx_no_=${pfx%_}
4139 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4140 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4141 eval ${pfx}libc_type=uclibc
4142 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4143 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4144 eval ${pfx}libc_type=glibc
4145 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4146 # MinGW headers can be installed on Cygwin, so check for newlib first.
4147 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4148 eval ${pfx}libc_type=newlib
4149 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4150 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4151 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4152 eval ${pfx}libc_type=mingw64
4153 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4154 eval test \$${pfx_no_}cc_type = "gcc" &&
4155 add_${pfx}cppflags -D__printf__=__gnu_printf__
4156 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4157 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4158 eval ${pfx}libc_type=mingw32
4159 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4160 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4161 die "ERROR: MinGW32 runtime version must be >= 3.15."
4162 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4163 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4164 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4165 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4166 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4167 eval test \$${pfx_no_}cc_type = "gcc" &&
4168 add_${pfx}cppflags -D__printf__=__gnu_printf__
4169 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4170 eval ${pfx}libc_type=msvcrt
4171 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4172 if [ "$pfx" = host_ ]; then
4173 add_host_cppflags -Dsnprintf=_snprintf
4174 else
4175 add_compat strtod.o strtod=avpriv_strtod
4176 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4177 _snprintf=avpriv_snprintf \
4178 vsnprintf=avpriv_vsnprintf
4179 fi
4180 fi
4181 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4182 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4183 # 0x601 by default unless something else is set by the user.
4184 # This can easily lead to us detecting functions only present
4185 # in such new versions and producing binaries requiring windows 7.0.
4186 # Therefore explicitly set the default to XP unless the user has
4187 # set something else on the command line.
4188 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4189 # family. For these cases, configure is free to use any functions
4190 # found in the SDK headers by default. (Alternatively, we could force
4191 # _WIN32_WINNT to 0x0602 in that case.)
4192 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4193 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4194 #ifdef WINAPI_FAMILY
4195 #include <winapifamily.h>
4196 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4197 #error not desktop
4198 #endif
4199 #endif
4200 EOF
4201 if [ "$pfx" = "" ]; then
4202 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4203 fi
4204 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4205 eval ${pfx}libc_type=klibc
4206 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4207 eval ${pfx}libc_type=bionic
4208 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4209 eval ${pfx}libc_type=solaris
4210 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4211 else
4212 eval ${pfx}libc_type=default
4213 add_${pfx}cppflags -D_DEFAULT_SOURCE
4214 fi
4215 }
4216
4217 probe_libc
4218 test -n "$libc_type" && enable libc_$libc_type
4219 probe_libc host_
4220 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4221
4222 # hacks for compiler/libc/os combinations
4223
4224 case $libc_type in
4225 bionic)
4226 add_compat strtod.o strtod=avpriv_strtod
4227 ;;
4228 glibc)
4229 if enabled tms470; then
4230 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4231 add_cppflags -D__USER_LABEL_PREFIX__=
4232 add_cppflags -D__builtin_memset=memset
4233 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4234 add_cflags -pds=48 # incompatible redefinition of macro
4235 fi
4236 ;;
4237 esac
4238
4239 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4240 add_cppflags '-I\$(SRC_PATH)/compat/float'
4241
4242 esc(){
4243 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4244 }
4245
4246 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4247
4248 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4249
4250 set_default $PATHS_LIST
4251 set_default nm
4252
4253 # we need to build at least one lib type
4254 if ! enabled_any static shared; then
4255 cat <<EOF
4256 At least one library type must be built.
4257 Specify --enable-static to build the static libraries or --enable-shared to
4258 build the shared libraries as well. To only build the shared libraries specify
4259 --disable-static in addition to --enable-shared.
4260 EOF
4261 exit 1
4262 fi
4263
4264 disabled optimizations || check_cflags -fomit-frame-pointer
4265
4266 enable_weak_pic() {
4267 disabled pic && return
4268 enable pic
4269 add_cppflags -DPIC
4270 case "$target_os" in
4271 mingw*|cygwin*)
4272 ;;
4273 *)
4274 add_cflags -fPIC
4275 ;;
4276 esac
4277 add_asflags -fPIC
4278 }
4279
4280 enabled pic && enable_weak_pic
4281
4282 check_cc <<EOF || die "Symbol mangling check failed."
4283 int ff_extern;
4284 EOF
4285 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4286 extern_prefix=${sym%%ff_extern*}
4287
4288 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4289
4290 _restrict=
4291 for restrict_keyword in restrict __restrict__ __restrict; do
4292 check_cc <<EOF && _restrict=$restrict_keyword && break
4293 void foo(char * $restrict_keyword p);
4294 EOF
4295 done
4296
4297 check_cc <<EOF && enable pragma_deprecated
4298 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4299 EOF
4300
4301 check_cc <<EOF && enable attribute_packed
4302 struct { int x; } __attribute__((packed)) x;
4303 EOF
4304
4305 check_cc <<EOF && enable attribute_may_alias
4306 union { int x; } __attribute__((may_alias)) x;
4307 EOF
4308
4309 check_cc <<EOF || die "endian test failed"
4310 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4311 EOF
4312 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4313
4314 check_gas() {
4315 log "check_gas using '$as' as AS"
4316 # :vararg is used on aarch64, arm and ppc altivec
4317 check_as <<EOF || return 1
4318 .macro m n, y:vararg=0
4319 \n: .int \y
4320 .endm
4321 m x
4322 EOF
4323 # .altmacro is only used in arm asm
4324 ! enabled arm || check_as <<EOF || return 1
4325 .altmacro
4326 EOF
4327 enable gnu_as
4328 return 0
4329 }
4330
4331 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4332 nogas=:
4333 enabled_any arm aarch64 && nogas=die
4334 enabled_all ppc altivec && nogas=warn
4335 as_noop=-v
4336
4337 case $as_type in
4338 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4339 gcc) gaspp_as_type=gas ;;
4340 *) gaspp_as_type=$as_type ;;
4341 esac
4342
4343 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4344
4345 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4346 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4347
4348 if ! check_gas ; then
4349 as=${gas:=$as}
4350 check_gas || \
4351 $nogas "GNU assembler not found, install/update gas-preprocessor"
4352 fi
4353
4354 check_as <<EOF && enable as_func
4355 .func test
4356 .endfunc
4357 EOF
4358 fi
4359
4360 check_inline_asm inline_asm_labels '"1:\n"'
4361
4362 if enabled aarch64; then
4363 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4364 # internal assembler in clang 3.3 does not support this instruction
4365 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4366 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4367
4368 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4369
4370 elif enabled alpha; then
4371
4372 check_cflags -mieee
4373
4374 elif enabled arm;