configure: Add missing arch dependencies for arch extensions
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
241 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
242 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
243 --enable-libnpp Nvidia CUDA processing
244 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
245 --enable-nvenc Nvidia video encoding
246 --enable-omx OpenMAX IL
247 --enable-omx-rpi OpenMAX IL for Raspberry Pi
248 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
249 --enable-vda Apple Video Decode Acceleration [auto]
250 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251
252 Toolchain options:
253 --arch=ARCH select architecture [$arch]
254 --cpu=CPU select the minimum required CPU (affects
255 instruction selection, may crash on older CPUs)
256 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
257 --enable-cross-compile assume a cross-compiler is used
258 --sysroot=PATH root of cross-build tree
259 --sysinclude=PATH location of cross-build system headers
260 --target-os=OS compiler targets OS [$target_os]
261 --target-exec=CMD command to run executables on target
262 --target-path=DIR path to view of build directory on target
263 --target-samples=DIR path to samples directory on target
264 --toolchain=NAME set tool defaults according to NAME
265 --nm=NM use nm tool
266 --ar=AR use archive tool AR [$ar_default]
267 --as=AS use assembler AS [$as_default]
268 --cc=CC use C compiler CC [$cc_default]
269 --objcc=OCC use ObjC compiler OCC [$cc_default]
270 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
271 --ld=LD use linker LD
272 --x86asmexe=X86ASM use x86 assembler X86ASM
273 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
274 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
275 --host-cc=HOSTCC use host C compiler HOSTCC
276 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
277 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
278 --host-ld=HOSTLD use host linker HOSTLD
279 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
280 --host-libs=HLIBS use libs HLIBS when linking for host
281 --host-os=OS compiler host OS [$target_os]
282 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
283 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
284 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
285 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
286 --extra-libs=ELIBS add ELIBS [$ELIBS]
287 --extra-version=STRING version string suffix []
288 --optflags=OPTFLAGS override optimization-related compiler flags
289 --enable-pic build position-independent code
290 --enable-thumb compile for Thumb instruction set
291 --enable-lto use link-time optimization
292 --env="ENV=override" override the environment variables
293
294 Advanced options (experts only):
295 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
296 --custom-allocator=NAME use a supported custom allocator
297 --disable-symver disable symbol versioning
298 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
299 --disable-safe-bitstream-reader
300 disable buffer boundary checking in bitreaders
301 (faster, but may crash)
302 --enable-sram allow use of on-chip SRAM
303
304 Optimization options (experts only):
305 --disable-asm disable all assembly optimizations
306 --disable-altivec disable AltiVec optimizations
307 --disable-vsx disable VSX optimizations
308 --disable-power8 disable POWER8 optimizations
309 --disable-amd3dnow disable 3DNow! optimizations
310 --disable-amd3dnowext disable 3DNow! extended optimizations
311 --disable-mmx disable MMX optimizations
312 --disable-mmxext disable MMXEXT optimizations
313 --disable-sse disable SSE optimizations
314 --disable-sse2 disable SSE2 optimizations
315 --disable-sse3 disable SSE3 optimizations
316 --disable-ssse3 disable SSSE3 optimizations
317 --disable-sse4 disable SSE4 optimizations
318 --disable-sse42 disable SSE4.2 optimizations
319 --disable-avx disable AVX optimizations
320 --disable-xop disable XOP optimizations
321 --disable-fma3 disable FMA3 optimizations
322 --disable-fma4 disable FMA4 optimizations
323 --disable-avx2 disable AVX2 optimizations
324 --disable-armv5te disable armv5te optimizations
325 --disable-armv6 disable armv6 optimizations
326 --disable-armv6t2 disable armv6t2 optimizations
327 --disable-vfp disable VFP optimizations
328 --disable-neon disable NEON optimizations
329 --disable-inline-asm disable use of inline assembly
330 --disable-x86asm disable use of standalone x86 assembly
331
332 Developer options (useful when working on Libav itself):
333 --disable-debug disable debugging symbols
334 --enable-debug=LEVEL set the debug level [$debuglevel]
335 --disable-optimizations disable compiler optimizations
336 --enable-extra-warnings enable more compiler warnings
337 --samples=PATH location of test samples for FATE, if not set use
338 \$LIBAV_SAMPLES at make invocation time.
339 --enable-neon-clobber-test check NEON registers for clobbering (should be
340 used only for debugging purposes)
341 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
342 should be used only for debugging purposes)
343 --enable-random randomly enable/disable components
344 --disable-random
345 --enable-random=LIST randomly enable/disable specific components or
346 --disable-random=LIST component groups. LIST is a comma-separated list
347 of NAME[:PROB] entries where NAME is a component
348 (group) and PROB the probability associated with
349 NAME (default 0.5).
350 --random-seed=VALUE seed value for --enable/disable-random
351 --disable-valgrind-backtrace do not print a backtrace under Valgrind
352 (only applies to --disable-optimizations builds)
353 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
354 in the name) of tests whose result is ignored
355
356 NOTE: Object files are built at the place where configure is launched.
357 EOF
358 exit 0
359 }
360
361 quotes='""'
362
363 log(){
364 echo "$@" >> $logfile
365 }
366
367 log_file(){
368 log BEGIN $1
369 i=1
370 while read line; do
371 printf '%5s %s\n' "${i}" "${line}"
372 i=$(($i+1))
373 done < $1 >> $logfile
374 log END $1
375 }
376
377 echolog(){
378 log "$@"
379 echo "$@"
380 }
381
382 warn(){
383 log "WARNING: $*"
384 WARNINGS="${WARNINGS}WARNING: $*\n"
385 }
386
387 die(){
388 echolog "$@"
389 cat <<EOF
390
391 If you think configure made a mistake, make sure you are using the latest
392 version from Git. If the latest version fails, report the problem to the
393 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
394 EOF
395 if disabled logging; then
396 cat <<EOF
397 Rerun configure with logging enabled (do not use --disable-logging), and
398 include the log this produces with your report.
399 EOF
400 else
401 cat <<EOF
402 Include the log file "$logfile" produced by configure as this will help
403 solving the problem.
404 EOF
405 fi
406 exit 1
407 }
408
409 # Avoid locale weirdness, besides we really just want to translate ASCII.
410 toupper(){
411 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
412 }
413
414 tolower(){
415 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
416 }
417
418 c_escape(){
419 echo "$*" | sed 's/["\\]/\\\0/g'
420 }
421
422 sh_quote(){
423 v=$(echo "$1" | sed "s/'/'\\\\''/g")
424 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
425 echo "$v"
426 }
427
428 cleanws(){
429 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
430 }
431
432 filter(){
433 pat=$1
434 shift
435 for v; do
436 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
437 done
438 }
439
440 filter_out(){
441 pat=$1
442 shift
443 for v; do
444 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
445 done
446 }
447
448 map(){
449 m=$1
450 shift
451 for v; do eval $m; done
452 }
453
454 add_suffix(){
455 suffix=$1
456 shift
457 for v; do echo ${v}${suffix}; done
458 }
459
460 set_all(){
461 value=$1
462 shift
463 for var in $*; do
464 eval $var=$value
465 done
466 }
467
468 set_weak(){
469 value=$1
470 shift
471 for var; do
472 eval : \${$var:=$value}
473 done
474 }
475
476 sanitize_var_name(){
477 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
478 }
479
480 set_sanitized(){
481 var=$1
482 shift
483 eval $(sanitize_var_name "$var")='$*'
484 }
485
486 get_sanitized(){
487 eval echo \$$(sanitize_var_name "$1")
488 }
489
490 pushvar(){
491 for pvar in $*; do
492 eval level=\${${pvar}_level:=0}
493 eval ${pvar}_${level}="\$$pvar"
494 eval ${pvar}_level=$(($level+1))
495 done
496 }
497
498 popvar(){
499 for pvar in $*; do
500 eval level=\${${pvar}_level:-0}
501 test $level = 0 && continue
502 eval level=$(($level-1))
503 eval $pvar="\${${pvar}_${level}}"
504 eval ${pvar}_level=$level
505 eval unset ${pvar}_${level}
506 done
507 }
508
509 enable(){
510 set_all yes $*
511 }
512
513 disable(){
514 set_all no $*
515 }
516
517 enable_weak(){
518 set_weak yes $*
519 }
520
521 disable_weak(){
522 set_weak no $*
523 }
524
525 enable_sanitized(){
526 for var; do
527 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 disable_sanitized(){
532 for var; do
533 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
534 done
535 }
536
537 do_enable_deep(){
538 for var; do
539 enabled $var && continue
540 eval sel="\$${var}_select"
541 eval sgs="\$${var}_suggest"
542 pushvar var sgs
543 enable_deep $sel
544 popvar sgs
545 enable_deep_weak $sgs
546 popvar var
547 done
548 }
549
550 enable_deep(){
551 do_enable_deep $*
552 enable $*
553 }
554
555 enable_deep_weak(){
556 for var; do
557 disabled $var && continue
558 pushvar var
559 do_enable_deep $var
560 popvar var
561 enable_weak $var
562 done
563 }
564
565 enabled(){
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xyes"
568 }
569
570 disabled(){
571 test "${1#!}" = "$1" && op== || op=!=
572 eval test "x\$${1#!}" $op "xno"
573 }
574
575 enabled_all(){
576 for opt; do
577 enabled $opt || return 1
578 done
579 }
580
581 disabled_all(){
582 for opt; do
583 disabled $opt || return 1
584 done
585 }
586
587 enabled_any(){
588 for opt; do
589 enabled $opt && return 0
590 done
591 }
592
593 disabled_any(){
594 for opt; do
595 disabled $opt && return 0
596 done
597 return 1
598 }
599
600 set_default(){
601 for opt; do
602 eval : \${$opt:=\$${opt}_default}
603 done
604 }
605
606 is_in(){
607 value=$1
608 shift
609 for var in $*; do
610 [ $var = $value ] && return 0
611 done
612 return 1
613 }
614
615 check_deps(){
616 for cfg; do
617 enabled ${cfg}_checking && die "Circular dependency for $cfg."
618 disabled ${cfg}_checking && continue
619 enable ${cfg}_checking
620 append allopts $cfg
621
622 eval dep_all="\$${cfg}_deps"
623 eval dep_any="\$${cfg}_deps_any"
624 eval dep_con="\$${cfg}_conflict"
625 eval dep_sel="\$${cfg}_select"
626 eval dep_sgs="\$${cfg}_suggest"
627 eval dep_ifa="\$${cfg}_if"
628 eval dep_ifn="\$${cfg}_if_any"
629
630 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
631 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
632 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
633
634 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
635 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
636 enabled_all $dep_all || disable $cfg
637 enabled_any $dep_any || disable $cfg
638 disabled_all $dep_con || disable $cfg
639 disabled_any $dep_sel && disable $cfg
640
641 if enabled $cfg; then
642 enable_deep $dep_sel
643 enable_deep_weak $dep_sgs
644 for dep in $dep_all $dep_any $dep_sgs; do
645 # filter out library deps, these do not belong in extralibs
646 is_in $dep $LIBRARY_LIST && continue
647 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648 done
649 fi
650
651 disable ${cfg}_checking
652 done
653 }
654
655 print_config(){
656 pfx=$1
657 files=$2
658 shift 2
659 map 'eval echo "$v \${$v:-no}"' "$@" |
660 awk "BEGIN { split(\"$files\", files) }
661 {
662 c = \"$pfx\" toupper(\$1);
663 v = \$2;
664 sub(/yes/, 1, v);
665 sub(/no/, 0, v);
666 for (f in files) {
667 file = files[f];
668 if (file ~ /\\.h\$/) {
669 printf(\"#define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.asm\$/) {
671 printf(\"%%define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.mak\$/) {
673 n = -v ? \"\" : \"!\";
674 printf(\"%s%s=yes\\n\", n, c) >>file;
675 }
676 }
677 }"
678 }
679
680 print_enabled(){
681 suf=$1
682 shift
683 for v; do
684 enabled $v && printf "%s\n" ${v%$suf}
685 done
686 }
687
688 append(){
689 var=$1
690 shift
691 eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695 var=$1
696 shift
697 eval "$var=\"$* \$$var\""
698 }
699
700 unique(){
701 var=$1
702 uniq_list=""
703 for tok in $(eval echo \$$var); do
704 uniq_list="$(filter_out $tok $uniq_list) $tok"
705 done
706 eval "$var=\"${uniq_list}\""
707 }
708
709 resolve(){
710 var=$1
711 tmpvar=
712 for entry in $(eval echo \$$var); do
713 tmpvar="$tmpvar $(eval echo \$${entry})"
714 done
715 eval "$var=\"${tmpvar}\""
716 }
717
718 add_cppflags(){
719 append CPPFLAGS "$@"
720 }
721
722 add_cflags(){
723 append CFLAGS $($cflags_filter "$@")
724 }
725
726 add_cflags_headers(){
727 append CFLAGS_HEADERS $($cflags_filter "$@")
728 }
729
730 add_asflags(){
731 append ASFLAGS $($asflags_filter "$@")
732 }
733
734 add_objcflags(){
735 append OBJCFLAGS $($objcflags_filter "$@")
736 }
737
738 add_ldflags(){
739 append LDFLAGS $($ldflags_filter "$@")
740 }
741
742 add_ldexeflags(){
743 append LDEXEFLAGS $($ldflags_filter "$@")
744 }
745
746 add_stripflags(){
747 append STRIPFLAGS "$@"
748 }
749
750 add_extralibs(){
751 prepend extralibs $($ldflags_filter "$@")
752 }
753
754 add_host_cppflags(){
755 append host_cppflags "$@"
756 }
757
758 add_host_cflags(){
759 append host_cflags $($host_cflags_filter "$@")
760 }
761
762 add_host_ldflags(){
763 append host_ldflags $($host_ldflags_filter "$@")
764 }
765
766 add_compat(){
767 append compat_objs $1
768 shift
769 map 'add_cppflags -D$v' "$@"
770 }
771
772 check_cmd(){
773 log "$@"
774 "$@" >> $logfile 2>&1
775 }
776
777 cc_o(){
778 eval printf '%s\\n' $CC_O
779 }
780
781 cc_e(){
782 eval printf '%s\\n' $CC_E
783 }
784
785 check_cc(){
786 log check_cc "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
790 }
791
792 check_objcc(){
793 log check_objcc "$@"
794 cat > $TMPC
795 log_file $TMPC
796 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
797 }
798
799 check_cpp(){
800 log check_cpp "$@"
801 cat > $TMPC
802 log_file $TMPC
803 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
804 }
805
806 as_o(){
807 eval printf '%s\\n' $AS_O
808 }
809
810 check_as(){
811 log check_as "$@"
812 cat > $TMPS
813 log_file $TMPS
814 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
815 }
816
817 check_inline_asm(){
818 log check_inline_asm "$@"
819 name="$1"
820 code="$2"
821 shift 2
822 disable $name
823 check_cc "$@" <<EOF && enable $name
824 void foo(void){ __asm__ volatile($code); }
825 EOF
826 }
827
828 check_insn(){
829 log check_insn "$@"
830 check_inline_asm ${1}_inline "\"$2\""
831 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
832 }
833
834 check_x86asm(){
835 log check_x86asm "$@"
836 echo "$1" > $TMPS
837 log_file $TMPS
838 shift 1
839 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
840 }
841
842 ld_o(){
843 eval printf '%s\\n' $LD_O
844 }
845
846 check_ld(){
847 log check_ld "$@"
848 flags=$(filter_out '-l*' "$@")
849 libs=$(filter '-l*' "$@")
850 check_cc $($cflags_filter $flags) || return
851 flags=$($ldflags_filter $flags)
852 libs=$($ldflags_filter $libs)
853 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
854 }
855
856 print_include(){
857 hdr=$1
858 test "${hdr%.h}" = "${hdr}" &&
859 echo "#include $hdr" ||
860 echo "#include <$hdr>"
861 }
862
863 check_code(){
864 log check_code "$@"
865 check=$1
866 headers=$2
867 code=$3
868 shift 3
869 {
870 for hdr in $headers; do
871 print_include $hdr
872 done
873 echo "int main(void) { $code; return 0; }"
874 } | check_$check "$@"
875 }
876
877 check_cppflags(){
878 log check_cppflags "$@"
879 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
880 #include <stdlib.h>;
881 EOF
882 }
883
884 test_cflags(){
885 log test_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_cc "$@" <<EOF
888 int x;
889 EOF
890 }
891
892 check_cflags(){
893 log check_cflags "$@"
894 test_cflags "$@" && add_cflags "$@"
895 }
896
897 test_objcflags(){
898 log test_objcflags "$@"
899 set -- $($objcflags_filter "$@")
900 check_objcc "$@" <<EOF
901 int x;
902 EOF
903 }
904
905 check_objcflags(){
906 log check_objcflags "$@"
907 test_objcflags "$@" && add_objcflags "$@"
908 }
909
910 test_ldflags(){
911 log test_ldflags "$@"
912 check_ld "$@" <<EOF
913 int main(void){ return 0; }
914 EOF
915 }
916
917 check_ldflags(){
918 log check_ldflags "$@"
919 test_ldflags "$@" && add_ldflags "$@"
920 }
921
922 test_stripflags(){
923 log test_stripflags "$@"
924 # call check_cc to get a fresh TMPO
925 check_cc <<EOF
926 int main(void) { return 0; }
927 EOF
928 check_cmd $strip $STRIPFLAGS "$@" $TMPO
929 }
930
931 check_stripflags(){
932 log check_stripflags "$@"
933 test_stripflags "$@" && add_stripflags "$@"
934 }
935
936 check_header(){
937 log check_header "$@"
938 header=$1
939 shift
940 disable_sanitized $header
941 check_cpp "$@" <<EOF && enable_sanitized $header
942 #include <$header>
943 int x;
944 EOF
945 }
946
947 check_func(){
948 log check_func "$@"
949 func=$1
950 shift
951 disable $func
952 check_ld "$@" <<EOF && enable $func
953 extern int $func();
954 int main(void){ $func(); }
955 EOF
956 }
957
958 check_mathfunc(){
959 log check_mathfunc "$@"
960 func=$1
961 narg=$2
962 shift 2
963 test $narg = 2 && args="f, g" || args="f"
964 disable $func
965 check_ld "$@" <<EOF && enable $func
966 #include <math.h>
967 float foo(float f, float g) { return $func($args); }
968 int main(void){ return 0; }
969 EOF
970 }
971
972 check_func_headers(){
973 log check_func_headers "$@"
974 headers=$1
975 funcs=$2
976 shift 2
977 {
978 for hdr in $headers; do
979 print_include $hdr
980 done
981 for func in $funcs; do
982 echo "long check_$func(void) { return (long) $func; }"
983 done
984 echo "int main(void) { return 0; }"
985 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
986 }
987
988 check_cpp_condition(){
989 log check_cpp_condition "$@"
990 header=$1
991 condition=$2
992 shift 2
993 check_cpp "$@" <<EOF
994 #include <$header>
995 #if !($condition)
996 #error "unsatisfied condition: $condition"
997 #endif
998 EOF
999 }
1000
1001 test_cflags_cpp(){
1002 log test_cflags_cpp "$@"
1003 flags=$1
1004 condition=$2
1005 shift 2
1006 set -- $($cflags_filter "$flags")
1007 check_cpp "$@" <<EOF
1008 #if !($condition)
1009 #error "unsatisfied condition: $condition"
1010 #endif
1011 EOF
1012 }
1013
1014 check_lib(){
1015 log check_lib "$@"
1016 name="$1"
1017 headers="$2"
1018 funcs="$3"
1019 shift 3
1020 disable $name
1021 check_func_headers "$headers" "$funcs" "$@" &&
1022 enable $name && eval ${name}_extralibs="\$@"
1023 }
1024
1025 check_pkg_config(){
1026 log check_pkg_config "$@"
1027 name="$1"
1028 pkg_version="$2"
1029 pkg="${2%% *}"
1030 headers="$3"
1031 funcs="$4"
1032 shift 4
1033 disable $name
1034 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1035 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1036 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1037 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1038 enable $name &&
1039 add_cflags "$pkg_cflags" &&
1040 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1041 }
1042
1043 check_exec(){
1044 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1045 }
1046
1047 check_exec_crash(){
1048 log check_exec_crash "$@"
1049 code=$(cat)
1050
1051 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1052 # are safe but may not be available everywhere. Thus we use
1053 # raise(SIGTERM) instead. The check is run in a subshell so we
1054 # can redirect the "Terminated" message from the shell. SIGBUS
1055 # is not defined by standard C so it is used conditionally.
1056
1057 (check_exec "$@") >> $logfile 2>&1 <<EOF
1058 #include <signal.h>
1059 static void sighandler(int sig){
1060 raise(SIGTERM);
1061 }
1062 int foo(void){
1063 $code
1064 }
1065 int (*func_ptr)(void) = foo;
1066 int main(void){
1067 signal(SIGILL, sighandler);
1068 signal(SIGFPE, sighandler);
1069 signal(SIGSEGV, sighandler);
1070 #ifdef SIGBUS
1071 signal(SIGBUS, sighandler);
1072 #endif
1073 return func_ptr();
1074 }
1075 EOF
1076 }
1077
1078 check_type(){
1079 log check_type "$@"
1080 headers=$1
1081 type=$2
1082 shift 2
1083 disable_sanitized "$type"
1084 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1085 }
1086
1087 check_struct(){
1088 log check_struct "$@"
1089 headers=$1
1090 struct=$2
1091 member=$3
1092 shift 3
1093 disable_sanitized "${struct}_${member}"
1094 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1095 enable_sanitized "${struct}_${member}"
1096 }
1097
1098 check_builtin(){
1099 log check_builtin "$@"
1100 name=$1
1101 headers=$2
1102 builtin=$3
1103 shift 3
1104 disable "$name"
1105 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1106 }
1107
1108 check_compile_assert(){
1109 log check_compile_assert "$@"
1110 name=$1
1111 headers=$2
1112 condition=$3
1113 shift 3
1114 disable "$name"
1115 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1116 }
1117
1118 require(){
1119 log require "$@"
1120 name_version="$1"
1121 name="${1%% *}"
1122 headers="$2"
1123 func="$3"
1124 shift 3
1125 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1126 }
1127
1128 require_header(){
1129 log require "$@"
1130 header="$1"
1131 shift
1132 check_header "$header" "$@" || die "ERROR: $header not found"
1133 }
1134
1135 require_cpp_condition(){
1136 log require "$@"
1137 header="$1"
1138 condition="$2"
1139 shift 2
1140 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1141 }
1142
1143 require_pkg_config(){
1144 log require_pkg_config "$@"
1145 pkg_version="$2"
1146 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1147 }
1148
1149 hostcc_e(){
1150 eval printf '%s\\n' $HOSTCC_E
1151 }
1152
1153 hostcc_o(){
1154 eval printf '%s\\n' $HOSTCC_O
1155 }
1156
1157 check_host_cc(){
1158 log check_host_cc "$@"
1159 cat > $TMPC
1160 log_file $TMPC
1161 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1162 }
1163
1164 check_host_cpp(){
1165 log check_host_cpp "$@"
1166 cat > $TMPC
1167 log_file $TMPC
1168 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1169 }
1170
1171 check_host_cppflags(){
1172 log check_host_cppflags "$@"
1173 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1174 #include <stdlib.h>;
1175 EOF
1176 }
1177
1178 check_host_cflags(){
1179 log check_host_cflags "$@"
1180 set -- $($host_cflags_filter "$@")
1181 check_host_cc "$@" <<EOF && append host_cflags "$@"
1182 int x;
1183 EOF
1184 }
1185
1186 check_host_cpp_condition(){
1187 log check_host_cpp_condition "$@"
1188 header=$1
1189 condition=$2
1190 shift 2
1191 check_host_cpp "$@" <<EOF
1192 #include <$header>
1193 #if !($condition)
1194 #error "unsatisfied condition: $condition"
1195 #endif
1196 EOF
1197 }
1198
1199 apply(){
1200 file=$1
1201 shift
1202 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1203 }
1204
1205 cp_if_changed(){
1206 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1207 mkdir -p "$(dirname $2)"
1208 cp -f "$1" "$2"
1209 }
1210
1211 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1212 # system-dependent things.
1213
1214 AVCODEC_COMPONENTS="
1215 bsfs
1216 decoders
1217 encoders
1218 hwaccels
1219 parsers
1220 "
1221
1222 AVDEVICE_COMPONENTS="
1223 indevs
1224 outdevs
1225 "
1226 AVFILTER_COMPONENTS="
1227 filters
1228 "
1229 AVFORMAT_COMPONENTS="
1230 demuxers
1231 muxers
1232 protocols
1233 "
1234
1235 AVRESAMPLE_COMPONENTS=""
1236 AVUTIL_COMPONENTS=""
1237
1238 COMPONENT_LIST="
1239 $AVCODEC_COMPONENTS
1240 $AVDEVICE_COMPONENTS
1241 $AVFILTER_COMPONENTS
1242 $AVFORMAT_COMPONENTS
1243 $AVRESAMPLE_COMPONENTS
1244 $AVUTIL_COMPONENTS
1245 "
1246
1247 EXAMPLE_LIST="
1248 decode_audio_example
1249 decode_video_example
1250 encode_audio_example
1251 encode_video_example
1252 filter_audio_example
1253 metadata_example
1254 output_example
1255 qsvdec_example
1256 transcode_aac_example
1257 "
1258
1259 # catchall list of things that require external libs to link
1260 EXTRALIBS_LIST="
1261 cpu_init
1262 cws2fws
1263 "
1264
1265 HWACCEL_LIBRARY_NONFREE_LIST="
1266 cuda
1267 libnpp
1268 "
1269 HWACCEL_LIBRARY_LIST="
1270 $HWACCEL_LIBRARY_NONFREE_LIST
1271 d3d11va
1272 dxva2
1273 libmfx
1274 mmal
1275 nvenc
1276 omx
1277 vaapi
1278 vda
1279 vdpau
1280 "
1281
1282 EXTERNAL_LIBRARY_GPL_LIST="
1283 libcdio
1284 libx264
1285 libx265
1286 libxavs
1287 libxvid
1288 "
1289
1290 EXTERNAL_LIBRARY_NONFREE_LIST="
1291 libfaac
1292 libfdk_aac
1293 openssl
1294 "
1295
1296 EXTERNAL_LIBRARY_VERSION3_LIST="
1297 libopencore_amrnb
1298 libopencore_amrwb
1299 libvo_aacenc
1300 libvo_amrwbenc
1301 "
1302
1303 EXTERNAL_LIBRARY_LIST="
1304 $EXTERNAL_LIBRARY_GPL_LIST
1305 $EXTERNAL_LIBRARY_NONFREE_LIST
1306 $EXTERNAL_LIBRARY_VERSION3_LIST
1307 avisynth
1308 avxsynth
1309 frei0r
1310 gnutls
1311 libbs2b
1312 libdc1394
1313 libdcadec
1314 libfontconfig
1315 libfreetype
1316 libgsm
1317 libhdcd
1318 libilbc
1319 libjack
1320 libkvazaar
1321 libmp3lame
1322 libopencv
1323 libopenh264
1324 libopenjpeg
1325 libopus
1326 libpulse
1327 librtmp
1328 libschroedinger
1329 libsnappy
1330 libspeex
1331 libtheora
1332 libtwolame
1333 libvorbis
1334 libvpx
1335 libwavpack
1336 libwebp
1337 libxcb
1338 libxcb_shm
1339 libxcb_xfixes
1340 "
1341
1342 SYSTEM_LIBRARY_LIST="
1343 bzlib
1344 zlib
1345 "
1346
1347 FEATURE_LIST="
1348 gray
1349 hardcoded_tables
1350 omx_rpi
1351 runtime_cpudetect
1352 safe_bitstream_reader
1353 shared
1354 small
1355 sram
1356 static
1357 swscale_alpha
1358 "
1359
1360 LIBRARY_LIST="
1361 avcodec
1362 avdevice
1363 avfilter
1364 avformat
1365 avresample
1366 avutil
1367 swscale
1368 "
1369
1370 LICENSE_LIST="
1371 gpl
1372 nonfree
1373 version3
1374 "
1375
1376 PROGRAM_LIST="
1377 avconv
1378 avplay
1379 avprobe
1380 "
1381
1382 SUBSYSTEM_LIST="
1383 dct
1384 doc
1385 error_resilience
1386 faan
1387 fft
1388 lsp
1389 lzo
1390 mdct
1391 network
1392 rdft
1393 "
1394
1395 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1396 CONFIG_LIST="
1397 $EXAMPLE_LIST
1398 $EXTERNAL_LIBRARY_LIST
1399 $HWACCEL_LIBRARY_LIST
1400 $FEATURE_LIST
1401 $LICENSE_LIST
1402 $LIBRARY_LIST
1403 $PROGRAM_LIST
1404 $SUBSYSTEM_LIST
1405 $SYSTEM_LIBRARY_LIST
1406 neon_clobber_test
1407 pic
1408 pod2man
1409 texi2html
1410 thumb
1411 valgrind_backtrace
1412 xmm_clobber_test
1413 $COMPONENT_LIST
1414 "
1415
1416 THREADS_LIST="
1417 pthreads
1418 w32threads
1419 "
1420
1421 ATOMICS_LIST="
1422 atomics_gcc
1423 atomics_suncc
1424 atomics_win32
1425 "
1426
1427 ARCH_LIST="
1428 aarch64
1429 alpha
1430 arm
1431 avr32
1432 avr32_ap
1433 avr32_uc
1434 bfin
1435 ia64
1436 m68k
1437 mips
1438 mips64
1439 parisc
1440 ppc
1441 ppc64
1442 s390
1443 sh4
1444 sparc
1445 sparc64
1446 tilegx
1447 tilepro
1448 tomi
1449 x86
1450 x86_32
1451 x86_64
1452 "
1453
1454 ARCH_EXT_LIST_ARM="
1455 armv5te
1456 armv6
1457 armv6t2
1458 armv8
1459 neon
1460 vfp
1461 vfpv3
1462 "
1463
1464 ARCH_EXT_LIST_X86_SIMD="
1465 amd3dnow
1466 amd3dnowext
1467 avx
1468 avx2
1469 fma3
1470 fma4
1471 mmx
1472 mmxext
1473 sse
1474 sse2
1475 sse3
1476 sse4
1477 sse42
1478 ssse3
1479 xop
1480 "
1481
1482 ARCH_EXT_LIST_PPC="
1483 altivec
1484 dcbzl
1485 ldbrx
1486 power8
1487 ppc4xx
1488 vsx
1489 "
1490
1491 ARCH_EXT_LIST_X86="
1492 $ARCH_EXT_LIST_X86_SIMD
1493 cpunop
1494 i686
1495 "
1496
1497 ARCH_EXT_LIST_MIPS="
1498 loongson
1499 mips32r1
1500 mips64r1
1501 mips32r2
1502 mips64r2
1503 mips32r6
1504 mips64r6
1505 "
1506
1507 ARCH_EXT_LIST="
1508 $ARCH_EXT_LIST_ARM
1509 $ARCH_EXT_LIST_MIPS
1510 $ARCH_EXT_LIST_PPC
1511 $ARCH_EXT_LIST_X86
1512 vis
1513 "
1514
1515 ARCH_FEATURES="
1516 aligned_stack
1517 fast_64bit
1518 fast_clz
1519 fast_cmov
1520 local_aligned_8
1521 local_aligned_16
1522 local_aligned_32
1523 simd_align_16
1524 simd_align_32
1525 "
1526
1527 BUILTIN_LIST="
1528 atomic_cas_ptr
1529 machine_rw_barrier
1530 MemoryBarrier
1531 mm_empty
1532 rdtsc
1533 sem_timedwait
1534 sync_val_compare_and_swap
1535 "
1536 HAVE_LIST_CMDLINE="
1537 inline_asm
1538 symver
1539 x86asm
1540 "
1541
1542 HAVE_LIST_PUB="
1543 bigendian
1544 fast_unaligned
1545 "
1546
1547 HEADERS_LIST="
1548 AVFoundation_AVFoundation_h
1549 alsa_asoundlib_h
1550 arpa_inet_h
1551 cdio_paranoia_h
1552 cdio_paranoia_paranoia_h
1553 d3d11_h
1554 dispatch_dispatch_h
1555 dev_bktr_ioctl_bt848_h
1556 dev_bktr_ioctl_meteor_h
1557 dev_ic_bt8xx_h
1558 dev_video_bktr_ioctl_bt848_h
1559 dev_video_meteor_ioctl_meteor_h
1560 direct_h
1561 dlfcn_h
1562 dxva_h
1563 gsm_h
1564 io_h
1565 mach_mach_time_h
1566 machine_ioctl_bt848_h
1567 machine_ioctl_meteor_h
1568 malloc_h
1569 poll_h
1570 sndio_h
1571 soundcard_h
1572 stdatomic_h
1573 sys_mman_h
1574 sys_param_h
1575 sys_resource_h
1576 sys_select_h
1577 sys_soundcard_h
1578 sys_time_h
1579 sys_un_h
1580 sys_videoio_h
1581 unistd_h
1582 valgrind_valgrind_h
1583 windows_h
1584 winsock2_h
1585 "
1586
1587 INTRINSICS_LIST="
1588 intrinsics_neon
1589 "
1590
1591 MATH_FUNCS="
1592 atanf
1593 atan2f
1594 cbrtf
1595 cosf
1596 exp2
1597 exp2f
1598 expf
1599 isinf
1600 isnan
1601 ldexpf
1602 llrint
1603 llrintf
1604 log2
1605 log2f
1606 log10f
1607 lrint
1608 lrintf
1609 powf
1610 rint
1611 round
1612 roundf
1613 sinf
1614 trunc
1615 truncf
1616 "
1617
1618 SYSTEM_FUNCS="
1619 aligned_malloc
1620 clock_gettime
1621 closesocket
1622 CommandLineToArgvW
1623 CoTaskMemFree
1624 CryptGenRandom
1625 fcntl
1626 flt_lim
1627 fork
1628 getaddrinfo
1629 gethrtime
1630 getopt
1631 GetProcessAffinityMask
1632 GetProcessMemoryInfo
1633 GetProcessTimes
1634 getrusage
1635 GetSystemTimeAsFileTime
1636 gettimeofday
1637 gmtime_r
1638 inet_aton
1639 isatty
1640 LoadLibrary
1641 localtime_r
1642 mach_absolute_time
1643 MapViewOfFile
1644 memalign
1645 mkstemp
1646 mmap
1647 mprotect
1648 nanosleep
1649 posix_memalign
1650 sched_getaffinity
1651 SetConsoleTextAttribute
1652 setmode
1653 setrlimit
1654 Sleep
1655 strerror_r
1656 sysconf
1657 sysctl
1658 usleep
1659 VirtualAlloc
1660 "
1661
1662 TOOLCHAIN_FEATURES="
1663 as_arch_directive
1664 as_fpu_directive
1665 as_func
1666 as_object_arch
1667 asm_mod_q
1668 attribute_may_alias
1669 attribute_packed
1670 blocks_extension
1671 ebp_available
1672 ebx_available
1673 gnu_as
1674 ibm_asm
1675 inline_asm_labels
1676 pragma_deprecated
1677 symver_asm_label
1678 symver_gnu_asm
1679 vfp_args
1680 xform_asm
1681 xmm_clobbers
1682 "
1683
1684 TYPES_LIST="
1685 CONDITION_VARIABLE_Ptr
1686 socklen_t
1687 struct_addrinfo
1688 struct_group_source_req
1689 struct_ip_mreq_source
1690 struct_ipv6_mreq
1691 struct_pollfd
1692 struct_rusage_ru_maxrss
1693 struct_sockaddr_in6
1694 struct_sockaddr_sa_len
1695 struct_sockaddr_storage
1696 struct_v4l2_frmivalenum_discrete
1697 "
1698
1699 HAVE_LIST="
1700 $ARCH_EXT_LIST
1701 $(add_suffix _external $ARCH_EXT_LIST)
1702 $(add_suffix _inline $ARCH_EXT_LIST)
1703 $ARCH_FEATURES
1704 $BUILTIN_LIST
1705 $HAVE_LIST_CMDLINE
1706 $HAVE_LIST_PUB
1707 $HEADERS_LIST
1708 $INTRINSICS_LIST
1709 $MATH_FUNCS
1710 $SYSTEM_FUNCS
1711 $THREADS_LIST
1712 $TOOLCHAIN_FEATURES
1713 $TYPES_LIST
1714 dos_paths
1715 libc_msvcrt
1716 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1717 sdl
1718 section_data_rel_ro
1719 threads
1720 vaapi_drm
1721 vaapi_x11
1722 vdpau_x11
1723 "
1724
1725 # options emitted with CONFIG_ prefix but not available on the command line
1726 CONFIG_EXTRA="
1727 aandcttables
1728 ac3dsp
1729 adts_header
1730 audio_frame_queue
1731 audiodsp
1732 blockdsp
1733 bswapdsp
1734 cabac
1735 dirac_parse
1736 dvprofile
1737 faandct
1738 faanidct
1739 fdctdsp
1740 flacdsp
1741 fmtconvert
1742 g722dsp
1743 gmp
1744 golomb
1745 gplv3
1746 h263dsp
1747 h264chroma
1748 h264dsp
1749 h264parse
1750 h264pred
1751 h264qpel
1752 hevc_ps
1753 hpeldsp
1754 huffman
1755 huffyuvdsp
1756 huffyuvencdsp
1757 idctdsp
1758 iirfilter
1759 imdct15
1760 intrax8
1761 iso_media
1762 ividsp
1763 jpegtables
1764 lgplv3
1765 libx262
1766 libxcb_shape
1767 lpc
1768 lzf
1769 me_cmp
1770 mpeg_er
1771 mpegaudio
1772 mpegaudiodsp
1773 mpegaudioheader
1774 mpegvideo
1775 mpegvideoenc
1776 mss34dsp
1777 pixblockdsp
1778 qpeldsp
1779 qsv
1780 qsvdec
1781 qsvenc
1782 rangecoder
1783 riffdec
1784 riffenc
1785 rtpdec
1786 rtpenc_chain
1787 rv34dsp
1788 sinewin
1789 snappy
1790 srtp
1791 startcode
1792 texturedsp
1793 texturedspenc
1794 tpeldsp
1795 vaapi_encode
1796 vc1dsp
1797 videodsp
1798 vp3dsp
1799 vp56dsp
1800 vp8dsp
1801 wma_freqs
1802 wmv2dsp
1803 "
1804
1805 CMDLINE_SELECT="
1806 $ARCH_EXT_LIST
1807 $CONFIG_LIST
1808 $HAVE_LIST_CMDLINE
1809 $THREADS_LIST
1810 asm
1811 cross_compile
1812 debug
1813 extra_warnings
1814 logging
1815 lto
1816 optimizations
1817 rpath
1818 "
1819
1820 PATHS_LIST="
1821 bindir
1822 datadir
1823 docdir
1824 incdir
1825 libdir
1826 mandir
1827 prefix
1828 shlibdir
1829 "
1830
1831 CMDLINE_SET="
1832 $PATHS_LIST
1833 ar
1834 arch
1835 as
1836 cc
1837 objcc
1838 cpu
1839 cross_prefix
1840 custom_allocator
1841 dep_cc
1842 env
1843 extra_version
1844 host_cc
1845 host_cflags
1846 host_extralibs
1847 host_ld
1848 host_ldflags
1849 host_os
1850 ignore_tests
1851 ld
1852 logfile
1853 malloc_prefix
1854 nm
1855 optflags
1856 pkg_config
1857 pkg_config_flags
1858 random_seed
1859 samples
1860 sysinclude
1861 sysroot
1862 target_exec
1863 target_os
1864 target_path
1865 target_samples
1866 toolchain
1867 x86asmexe
1868 "
1869
1870 CMDLINE_APPEND="
1871 extra_cflags
1872 extra_objcflags
1873 host_cppflags
1874 "
1875
1876 # code dependency declarations
1877
1878 # architecture extensions
1879
1880 armv5te_deps="arm"
1881 armv6_deps="arm"
1882 armv6t2_deps="arm"
1883 armv8_deps="aarch64"
1884 neon_deps_any="aarch64 arm"
1885 intrinsics_neon_deps="neon"
1886 vfp_deps_any="aarch64 arm"
1887 vfpv3_deps="vfp"
1888
1889 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1890
1891 altivec_deps="ppc"
1892 dcbzl_deps="ppc"
1893 ldbrx_deps="ppc"
1894 ppc4xx_deps="ppc"
1895 vsx_deps="altivec"
1896 power8_deps="vsx"
1897
1898 loongson_deps="mips"
1899 mips32r1_deps="mips32"
1900 mips32r2_deps="mips32"
1901 mips32r6_deps="mips32"
1902 mips64r1_deps="mips64"
1903 mips64r2_deps="mips64"
1904 mips64r6_deps="mips64"
1905
1906 vis_deps="sparc"
1907
1908 cpunop_deps="i686"
1909 x86_64_select="i686"
1910 x86_64_suggest="fast_cmov"
1911
1912 amd3dnow_deps="mmx"
1913 amd3dnowext_deps="amd3dnow"
1914 i686_deps="x86"
1915 mmx_deps="x86"
1916 mmxext_deps="mmx"
1917 sse_deps="mmxext"
1918 sse2_deps="sse"
1919 sse3_deps="sse2"
1920 ssse3_deps="sse3"
1921 sse4_deps="ssse3"
1922 sse42_deps="sse4"
1923 avx_deps="sse42"
1924 xop_deps="avx"
1925 fma3_deps="avx"
1926 fma4_deps="avx"
1927 avx2_deps="avx"
1928
1929 mmx_external_deps="x86asm"
1930 mmx_inline_deps="inline_asm x86"
1931 mmx_suggest="mmx_external mmx_inline"
1932
1933 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1934 eval dep=\$${ext}_deps
1935 eval ${ext}_external_deps='"${dep}_external"'
1936 eval ${ext}_inline_deps='"${dep}_inline"'
1937 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1938 done
1939
1940 aligned_stack_if_any="aarch64 ppc x86"
1941 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1942 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1943 fast_unaligned_if_any="aarch64 ppc x86"
1944 simd_align_16_if_any="altivec neon sse"
1945 simd_align_32_if_any="avx"
1946
1947 # system capabilities
1948 symver_if_any="symver_asm_label symver_gnu_asm"
1949 valgrind_backtrace_conflict="optimizations"
1950 valgrind_backtrace_deps="valgrind_valgrind_h"
1951
1952 # threading support
1953 atomics_gcc_if="sync_val_compare_and_swap"
1954 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1955 atomics_win32_if="MemoryBarrier"
1956 atomics_native_if_any="$ATOMICS_LIST"
1957 w32threads_deps="atomics_native"
1958 threads_if_any="$THREADS_LIST"
1959
1960 # subsystems
1961 dct_select="rdft"
1962 dirac_parse_select="golomb"
1963 error_resilience_select="me_cmp"
1964 faandct_deps="faan fdctdsp"
1965 faanidct_deps="faan idctdsp"
1966 h264dsp_select="startcode"
1967 hevc_ps_select="golomb"
1968 intrax8_select="blockdsp idctdsp"
1969 mdct_select="fft"
1970 rdft_select="fft"
1971 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1972 mpeg_er_select="error_resilience"
1973 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1974 mpegaudiodsp_select="dct"
1975 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1976 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1977 vc1dsp_select="h264chroma qpeldsp startcode"
1978
1979 # decoders / encoders
1980 aac_decoder_select="adts_header imdct15 mdct sinewin"
1981 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1982 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1983 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1984 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1985 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1986 adpcm_g722_decoder_select="g722dsp"
1987 adpcm_g722_encoder_select="g722dsp"
1988 aic_decoder_select="golomb idctdsp"
1989 alac_encoder_select="lpc"
1990 als_decoder_select="bswapdsp"
1991 amrnb_decoder_select="lsp"
1992 amrwb_decoder_select="lsp"
1993 amv_decoder_select="sp5x_decoder"
1994 ape_decoder_select="bswapdsp"
1995 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1996 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1997 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1998 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1999 atrac1_decoder_select="mdct sinewin"
2000 atrac3_decoder_select="mdct"
2001 atrac3p_decoder_select="mdct sinewin"
2002 bink_decoder_select="blockdsp hpeldsp"
2003 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2004 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2005 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2006 clearvideo_decoder_select="idctdsp"
2007 cllc_decoder_select="bswapdsp"
2008 comfortnoise_encoder_select="lpc"
2009 cook_decoder_select="audiodsp mdct sinewin"
2010 cscd_decoder_select="lzo"
2011 cscd_decoder_suggest="zlib"
2012 dca_decoder_select="fmtconvert mdct"
2013 dds_decoder_select="texturedsp"
2014 dnxhd_decoder_select="blockdsp idctdsp"
2015 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2016 dvvideo_decoder_select="dvprofile idctdsp"
2017 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2018 dxa_decoder_deps="zlib"
2019 dxv_decoder_select="lzf texturedsp"
2020 eac3_decoder_select="ac3_decoder"
2021 eac3_encoder_select="ac3_encoder"
2022 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2023 eatgq_decoder_select="aandcttables idctdsp"
2024 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2025 exr_decoder_deps="zlib"
2026 ffv1_decoder_select="rangecoder"
2027 ffv1_encoder_select="rangecoder"
2028 ffvhuff_decoder_select="huffyuv_decoder"
2029 ffvhuff_encoder_select="huffyuv_encoder"
2030 fic_decoder_select="golomb"
2031 flac_decoder_select="flacdsp"
2032 flac_encoder_select="bswapdsp flacdsp lpc"
2033 flashsv_decoder_deps="zlib"
2034 flashsv_encoder_deps="zlib"
2035 flashsv2_decoder_deps="zlib"
2036 flv_decoder_select="h263_decoder"
2037 flv_encoder_select="h263_encoder"
2038 fourxm_decoder_select="blockdsp bswapdsp"
2039 fraps_decoder_select="bswapdsp huffman"
2040 g2m_decoder_deps="zlib"
2041 g2m_decoder_select="blockdsp idctdsp jpegtables"
2042 h261_decoder_select="mpeg_er mpegvideo"
2043 h261_encoder_select="aandcttables mpegvideoenc"
2044 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2045 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2046 h263i_decoder_select="h263_decoder"
2047 h263p_encoder_select="h263_encoder"
2048 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2049 h264_decoder_suggest="error_resilience"
2050 hap_decoder_select="snappy texturedsp"
2051 hap_encoder_deps="libsnappy"
2052 hap_encoder_select="texturedspenc"
2053 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2054 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2055 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2056 iac_decoder_select="imc_decoder"
2057 imc_decoder_select="bswapdsp fft mdct sinewin"
2058 indeo3_decoder_select="hpeldsp"
2059 indeo4_decoder_select="ividsp"
2060 indeo5_decoder_select="ividsp"
2061 interplay_video_decoder_select="hpeldsp"
2062 jpegls_decoder_select="mjpeg_decoder"
2063 jv_decoder_select="blockdsp"
2064 lagarith_decoder_select="huffyuvdsp"
2065 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2066 magicyuv_decoder_select="huffyuvdsp"
2067 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2068 metasound_decoder_select="lsp mdct sinewin"
2069 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2070 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2071 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2072 mjpegb_decoder_select="mjpeg_decoder"
2073 mlp_decoder_select="mlp_parser"
2074 motionpixels_decoder_select="bswapdsp"
2075 mp1_decoder_select="mpegaudio"
2076 mp1float_decoder_select="mpegaudio"
2077 mp2_decoder_select="mpegaudio"
2078 mp2float_decoder_select="mpegaudio"
2079 mp3_decoder_select="mpegaudio"
2080 mp3adu_decoder_select="mpegaudio"
2081 mp3adufloat_decoder_select="mpegaudio"
2082 mp3float_decoder_select="mpegaudio"
2083 mp3on4_decoder_select="mpegaudio"
2084 mp3on4float_decoder_select="mpegaudio"
2085 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2086 mpc8_decoder_select="mpegaudiodsp"
2087 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2088 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2089 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2090 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2091 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2092 mpeg4_encoder_select="h263_encoder"
2093 msa1_decoder_select="mss34dsp"
2094 msmpeg4v1_decoder_select="h263_decoder"
2095 msmpeg4v2_decoder_select="h263_decoder"
2096 msmpeg4v2_encoder_select="h263_encoder"
2097 msmpeg4v3_decoder_select="h263_decoder"
2098 msmpeg4v3_encoder_select="h263_encoder"
2099 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2100 mts2_decoder_select="mss34dsp"
2101 mxpeg_decoder_select="mjpeg_decoder"
2102 nellymoser_decoder_select="mdct sinewin"
2103 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2104 nuv_decoder_select="idctdsp lzo"
2105 on2avc_decoder_select="mdct"
2106 opus_decoder_deps="avresample"
2107 opus_decoder_select="imdct15"
2108 png_decoder_deps="zlib"
2109 png_encoder_deps="zlib"
2110 png_encoder_select="huffyuvencdsp"
2111 prores_decoder_select="idctdsp"
2112 prores_encoder_select="fdctdsp"
2113 qcelp_decoder_select="lsp"
2114 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2115 ra_144_encoder_select="audio_frame_queue lpc"
2116 ralf_decoder_select="golomb"
2117 rscc_decoder_deps="zlib"
2118 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2119 rv10_encoder_select="h263_encoder"
2120 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2121 rv20_encoder_select="h263_encoder"
2122 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2123 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2124 screenpresso_decoder_deps="zlib"
2125 sipr_decoder_select="lsp"
2126 sp5x_decoder_select="mjpeg_decoder"
2127 svq1_decoder_select="hpeldsp"
2128 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2129 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2130 svq3_decoder_suggest="zlib"
2131 tak_decoder_select="audiodsp"
2132 tdsc_decoder_deps="zlib"
2133 tdsc_decoder_select="mjpeg_decoder"
2134 theora_decoder_select="vp3_decoder"
2135 thp_decoder_select="mjpeg_decoder"
2136 tiff_decoder_suggest="zlib"
2137 tiff_encoder_suggest="zlib"
2138 truehd_decoder_select="mlp_decoder"
2139 truemotion2_decoder_select="bswapdsp"
2140 truespeech_decoder_select="bswapdsp"
2141 tscc_decoder_deps="zlib"
2142 txd_decoder_select="texturedsp"
2143 twinvq_decoder_select="mdct lsp sinewin"
2144 utvideo_decoder_select="bswapdsp huffyuvdsp"
2145 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2146 vble_decoder_select="huffyuvdsp"
2147 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2148 vc1image_decoder_select="vc1_decoder"
2149 vorbis_decoder_select="mdct"
2150 vorbis_encoder_select="mdct"
2151 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2152 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2153 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2154 vp6a_decoder_select="vp6_decoder"
2155 vp6f_decoder_select="vp6_decoder"
2156 vp7_decoder_select="h264pred videodsp vp8dsp"
2157 vp8_decoder_select="h264pred videodsp vp8dsp"
2158 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2159 webp_decoder_select="vp8_decoder"
2160 wmapro_decoder_select="mdct sinewin wma_freqs"
2161 wmav1_decoder_select="mdct sinewin wma_freqs"
2162 wmav1_encoder_select="mdct sinewin wma_freqs"
2163 wmav2_decoder_select="mdct sinewin wma_freqs"
2164 wmav2_encoder_select="mdct sinewin wma_freqs"
2165 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2166 wmv1_decoder_select="h263_decoder"
2167 wmv1_encoder_select="h263_encoder"
2168 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2169 wmv2_encoder_select="h263_encoder wmv2dsp"
2170 wmv3_decoder_select="vc1_decoder"
2171 wmv3image_decoder_select="wmv3_decoder"
2172 zerocodec_decoder_deps="zlib"
2173 zlib_decoder_deps="zlib"
2174 zlib_encoder_deps="zlib"
2175 zmbv_decoder_deps="zlib"
2176 zmbv_encoder_deps="zlib"
2177
2178 # hardware accelerators
2179 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2180 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2181 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2182 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2183
2184 h263_vaapi_hwaccel_deps="vaapi"
2185 h263_vaapi_hwaccel_select="h263_decoder"
2186 h264_d3d11va_hwaccel_deps="d3d11va"
2187 h264_d3d11va_hwaccel_select="h264_decoder"
2188 h264_d3d11va2_hwaccel_deps="d3d11va"
2189 h264_d3d11va2_hwaccel_select="h264_decoder"
2190 h264_dxva2_hwaccel_deps="dxva2"
2191 h264_dxva2_hwaccel_select="h264_decoder"
2192 h264_mmal_hwaccel_deps="mmal"
2193 h264_qsv_hwaccel_deps="libmfx"
2194 h264_vaapi_hwaccel_deps="vaapi"
2195 h264_vaapi_hwaccel_select="h264_decoder"
2196 h264_vda_hwaccel_deps="vda"
2197 h264_vda_hwaccel_select="h264_decoder"
2198 h264_vda_old_hwaccel_deps="vda"
2199 h264_vda_old_hwaccel_select="h264_decoder"
2200 h264_vdpau_hwaccel_deps="vdpau"
2201 h264_vdpau_hwaccel_select="h264_decoder"
2202 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2203 hevc_d3d11va_hwaccel_select="hevc_decoder"
2204 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2205 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2206 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2207 hevc_dxva2_hwaccel_select="hevc_decoder"
2208 hevc_qsv_hwaccel_deps="libmfx"
2209 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2210 hevc_vaapi_hwaccel_select="hevc_decoder"
2211 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2212 hevc_vdpau_hwaccel_select="hevc_decoder"
2213 mpeg1_vdpau_hwaccel_deps="vdpau"
2214 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2215 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2216 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2217 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2218 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2219 mpeg2_dxva2_hwaccel_deps="dxva2"
2220 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2221 mpeg2_mmal_hwaccel_deps="mmal"
2222 mpeg2_qsv_hwaccel_deps="libmfx"
2223 mpeg2_vaapi_hwaccel_deps="vaapi"
2224 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2225 mpeg2_vdpau_hwaccel_deps="vdpau"
2226 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2227 mpeg4_vaapi_hwaccel_deps="vaapi"
2228 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2229 mpeg4_vdpau_hwaccel_deps="vdpau"
2230 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2231 vc1_d3d11va_hwaccel_deps="d3d11va"
2232 vc1_d3d11va_hwaccel_select="vc1_decoder"
2233 vc1_d3d11va2_hwaccel_deps="d3d11va"
2234 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2235 vc1_dxva2_hwaccel_deps="dxva2"
2236 vc1_dxva2_hwaccel_select="vc1_decoder"
2237 vc1_mmal_hwaccel_deps="mmal"
2238 vc1_qsv_hwaccel_deps="libmfx"
2239 vc1_vaapi_hwaccel_deps="vaapi"
2240 vc1_vaapi_hwaccel_select="vc1_decoder"
2241 vc1_vdpau_hwaccel_deps="vdpau"
2242 vc1_vdpau_hwaccel_select="vc1_decoder"
2243 vp8_qsv_hwaccel_deps="libmfx"
2244 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2245 vp8_vaapi_hwaccel_select="vp8_decoder"
2246 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2247 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2248 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2249 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2250 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2251
2252 # hardware-accelerated codecs
2253 nvenc_deps_any="libdl LoadLibrary"
2254 omx_deps="libdl pthreads"
2255 omx_rpi_select="omx"
2256 qsvdec_select="qsv"
2257 qsvenc_select="qsv"
2258 vaapi_encode_deps="vaapi"
2259
2260 hwupload_cuda_filter_deps="cuda"
2261 scale_npp_filter_deps="cuda libnpp"
2262
2263 h264_mmal_decoder_deps="mmal"
2264 h264_nvenc_encoder_deps="nvenc"
2265 h264_omx_encoder_deps="omx"
2266 h264_qsv_decoder_deps="libmfx"
2267 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2268 h264_qsv_encoder_deps="libmfx"
2269 h264_qsv_encoder_select="qsvenc"
2270 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2271 h264_vaapi_encoder_select="vaapi_encode golomb"
2272 hevc_nvenc_encoder_deps="nvenc"
2273 hevc_qsv_decoder_deps="libmfx"
2274 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2275 hevc_qsv_encoder_deps="libmfx"
2276 hevc_qsv_encoder_select="hevc_ps qsvenc"
2277 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2278 hevc_vaapi_encoder_select="vaapi_encode golomb"
2279 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2280 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2281 mpeg2_mmal_decoder_deps="mmal"
2282 mpeg2_qsv_decoder_deps="libmfx"
2283 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2284 mpeg2_qsv_encoder_deps="libmfx"
2285 mpeg2_qsv_encoder_select="qsvenc"
2286 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2287 mpeg2_vaapi_encoder_select="vaapi_encode"
2288 mpeg4_omx_encoder_deps="omx"
2289 vc1_mmal_decoder_deps="mmal"
2290 vc1_qsv_decoder_deps="libmfx"
2291 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2292 vp8_qsv_decoder_deps="libmfx"
2293 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2294 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2295 vp8_vaapi_encoder_select="vaapi_encode"
2296 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2297 vp9_vaapi_encoder_select="vaapi_encode"
2298
2299 nvenc_h264_encoder_select="h264_nvenc_encoder"
2300 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2301
2302 # parsers
2303 aac_parser_select="adts_header"
2304 h264_parser_select="golomb h264dsp h264parse"
2305 hevc_parser_select="hevc_ps"
2306 mpegaudio_parser_select="mpegaudioheader"
2307 mpegvideo_parser_select="mpegvideo"
2308 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2309 vc1_parser_select="vc1dsp"
2310
2311 # bitstream_filters
2312 aac_adtstoasc_bsf_select="adts_header"
2313 mjpeg2jpeg_bsf_select="jpegtables"
2314
2315 # external libraries
2316 avisynth_deps="LoadLibrary"
2317 avxsynth_deps="libdl"
2318 avisynth_demuxer_deps_any="avisynth avxsynth"
2319 avisynth_demuxer_select="riffdec"
2320 libdcadec_decoder_deps="libdcadec"
2321 libfaac_encoder_deps="libfaac"
2322 libfaac_encoder_select="audio_frame_queue"
2323 libfdk_aac_decoder_deps="libfdk_aac"
2324 libfdk_aac_encoder_deps="libfdk_aac"
2325 libfdk_aac_encoder_select="audio_frame_queue"
2326 libgsm_decoder_deps="libgsm"
2327 libgsm_encoder_deps="libgsm"
2328 libgsm_ms_decoder_deps="libgsm"
2329 libgsm_ms_encoder_deps="libgsm"
2330 libilbc_decoder_deps="libilbc"
2331 libilbc_encoder_deps="libilbc"
2332 libkvazaar_encoder_deps="libkvazaar"
2333 libmp3lame_encoder_deps="libmp3lame"
2334 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2335 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2336 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2337 libopencore_amrnb_encoder_select="audio_frame_queue"
2338 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2339 libopenh264_decoder_deps="libopenh264"
2340 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2341 libopenh264_encoder_deps="libopenh264"
2342 libopenjpeg_decoder_deps="libopenjpeg"
2343 libopenjpeg_encoder_deps="libopenjpeg"
2344 libopus_decoder_deps="libopus"
2345 libopus_encoder_deps="libopus"
2346 libopus_encoder_select="audio_frame_queue"
2347 libschroedinger_decoder_deps="libschroedinger"
2348 libschroedinger_encoder_deps="libschroedinger"
2349 libspeex_decoder_deps="libspeex"
2350 libspeex_encoder_deps="libspeex"
2351 libspeex_encoder_select="audio_frame_queue"
2352 libtheora_encoder_deps="libtheora"
2353 libtwolame_encoder_deps="libtwolame"
2354 libvo_aacenc_encoder_deps="libvo_aacenc"
2355 libvo_aacenc_encoder_select="audio_frame_queue"
2356 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2357 libvorbis_encoder_deps="libvorbis"
2358 libvorbis_encoder_select="audio_frame_queue"
2359 libvpx_vp8_decoder_deps="libvpx"
2360 libvpx_vp8_encoder_deps="libvpx"
2361 libvpx_vp9_decoder_deps="libvpx"
2362 libvpx_vp9_encoder_deps="libvpx"
2363 libwavpack_encoder_deps="libwavpack"
2364 libwavpack_encoder_select="audio_frame_queue"
2365 libwebp_encoder_deps="libwebp"
2366 libx262_encoder_deps="libx262"
2367 libx264_encoder_deps="libx264"
2368 libx265_encoder_deps="libx265"
2369 libxavs_encoder_deps="libxavs"
2370 libxvid_encoder_deps="libxvid mkstemp"
2371
2372 # demuxers / muxers
2373 ac3_demuxer_select="ac3_parser"
2374 asf_demuxer_select="riffdec"
2375 asf_muxer_select="riffenc"
2376 asf_stream_muxer_select="asf_muxer"
2377 avi_demuxer_select="iso_media riffdec"
2378 avi_muxer_select="riffenc"
2379 caf_demuxer_select="iso_media riffdec"
2380 dash_muxer_select="mp4_muxer"
2381 dirac_demuxer_select="dirac_parser"
2382 dv_demuxer_select="dvprofile"
2383 dv_muxer_select="dvprofile"
2384 dxa_demuxer_select="riffdec"
2385 eac3_demuxer_select="ac3_parser"
2386 f4v_muxer_select="mov_muxer"
2387 flac_demuxer_select="flac_parser"
2388 hds_muxer_select="flv_muxer"
2389 hls_muxer_select="mpegts_muxer"
2390 ipod_muxer_select="mov_muxer"
2391 ismv_muxer_select="mov_muxer"
2392 matroska_audio_muxer_select="matroska_muxer"
2393 matroska_demuxer_select="iso_media riffdec"
2394 matroska_demuxer_suggest="bzlib lzo zlib"
2395 matroska_muxer_select="iso_media riffenc"
2396 mmf_muxer_select="riffenc"
2397 mov_demuxer_select="iso_media riffdec"
2398 mov_demuxer_suggest="zlib"
2399 mov_muxer_select="iso_media riffenc rtpenc_chain"
2400 mp3_demuxer_select="mpegaudio_parser"
2401 mp3_muxer_select="mpegaudioheader"
2402 mp4_muxer_select="mov_muxer"
2403 mpegts_demuxer_select="iso_media"
2404 mpegts_muxer_select="adts_muxer latm_muxer"
2405 mpegtsraw_demuxer_select="mpegts_demuxer"
2406 mxf_d10_muxer_select="mxf_muxer"
2407 nut_muxer_select="riffenc"
2408 nuv_demuxer_select="riffdec"
2409 oga_muxer_select="ogg_muxer"
2410 ogg_demuxer_select="dirac_parse"
2411 opus_muxer_select="ogg_muxer"
2412 psp_muxer_select="mov_muxer"
2413 rtp_demuxer_select="sdp_demuxer"
2414 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2415 rtsp_demuxer_select="http_protocol rtpdec"
2416 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2417 sap_demuxer_select="sdp_demuxer"
2418 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2419 sdp_demuxer_select="rtpdec"
2420 smoothstreaming_muxer_select="ismv_muxer"
2421 spdif_demuxer_select="adts_header"
2422 spdif_muxer_select="adts_header"
2423 spx_muxer_select="ogg_muxer"
2424 swf_demuxer_suggest="zlib"
2425 tak_demuxer_select="tak_parser"
2426 tg2_muxer_select="mov_muxer"
2427 tgp_muxer_select="mov_muxer"
2428 w64_demuxer_select="wav_demuxer"
2429 wav_demuxer_select="riffdec"
2430 wav_muxer_select="riffenc"
2431 webm_muxer_select="iso_media riffenc"
2432 wtv_demuxer_select="mpegts_demuxer riffdec"
2433 xmv_demuxer_select="riffdec"
2434 xwma_demuxer_select="riffdec"
2435
2436 # indevs / outdevs
2437 alsa_indev_deps="alsa"
2438 alsa_outdev_deps="alsa"
2439 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2440 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2441 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2442 dv1394_indev_deps="dv1394"
2443 dv1394_indev_select="dv_demuxer"
2444 fbdev_indev_deps="linux_fb_h"
2445 jack_indev_deps="libjack"
2446 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2447 libcdio_indev_deps="libcdio"
2448 libdc1394_indev_deps="libdc1394"
2449 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2450 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2451 pulse_indev_deps="libpulse"
2452 sndio_indev_deps="sndio"
2453 sndio_outdev_deps="sndio"
2454 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2455 vfwcap_indev_deps="vfw32 vfwcap_defines"
2456 xcbgrab_indev_deps="libxcb libxcb_shape"
2457 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2458
2459 # protocols
2460 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2461 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2462 ffrtmpcrypt_protocol_select="tcp_protocol"
2463 ffrtmphttp_protocol_conflict="librtmp_protocol"
2464 ffrtmphttp_protocol_select="http_protocol"
2465 gopher_protocol_select="network"
2466 http_protocol_select="tcp_protocol"
2467 http_protocol_suggest="zlib"
2468 httpproxy_protocol_select="tcp_protocol"
2469 httpproxy_protocol_suggest="zlib"
2470 https_protocol_select="tls_protocol"
2471 https_protocol_suggest="zlib"
2472 icecast_protocol_select="http_protocol"
2473 librtmp_protocol_deps="librtmp"
2474 librtmpe_protocol_deps="librtmp"
2475 librtmps_protocol_deps="librtmp"
2476 librtmpt_protocol_deps="librtmp"
2477 librtmpte_protocol_deps="librtmp"
2478 mmsh_protocol_select="http_protocol"
2479 mmst_protocol_select="network"
2480 rtmp_protocol_conflict="librtmp_protocol"
2481 rtmp_protocol_select="tcp_protocol"
2482 rtmp_protocol_suggest="zlib"
2483 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2484 rtmpe_protocol_suggest="zlib"
2485 rtmps_protocol_conflict="librtmp_protocol"
2486 rtmps_protocol_select="tls_protocol"
2487 rtmps_protocol_suggest="zlib"
2488 rtmpt_protocol_select="ffrtmphttp_protocol"
2489 rtmpt_protocol_suggest="zlib"
2490 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2491 rtmpte_protocol_suggest="zlib"
2492 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2493 rtmpts_protocol_suggest="zlib"
2494 rtp_protocol_select="udp_protocol"
2495 sctp_protocol_deps="struct_sctp_event_subscribe"
2496 sctp_protocol_select="network"
2497 srtp_protocol_select="rtp_protocol srtp"
2498 tcp_protocol_select="network"
2499 tls_protocol_deps_any="gnutls openssl"
2500 tls_protocol_select="tcp_protocol"
2501 udp_protocol_select="network"
2502 unix_protocol_deps="sys_un_h"
2503 unix_protocol_select="network"
2504
2505 # filters
2506 asyncts_filter_deps="avresample"
2507 blackframe_filter_deps="gpl"
2508 boxblur_filter_deps="gpl"
2509 bs2b_filter_deps="libbs2b"
2510 cropdetect_filter_deps="gpl"
2511 deinterlace_qsv_filter_deps="libmfx"
2512 deinterlace_vaapi_filter_deps="vaapi"
2513 delogo_filter_deps="gpl"
2514 drawtext_filter_deps="libfreetype"
2515 drawtext_filter_suggest="libfontconfig"
2516 frei0r_filter_deps="frei0r libdl"
2517 frei0r_src_filter_deps="frei0r libdl"
2518 hdcd_filter_deps="libhdcd"
2519 hqdn3d_filter_deps="gpl"
2520 interlace_filter_deps="gpl"
2521 movie_filter_deps="avcodec avformat"
2522 ocv_filter_deps="libopencv"
2523 resample_filter_deps="avresample"
2524 scale_filter_deps="swscale"
2525 scale_qsv_filter_deps="libmfx"
2526 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2527
2528 # examples
2529 decode_audio_example_deps="avcodec avutil"
2530 decode_video_example_deps="avcodec avutil"
2531 encode_audio_example_deps="avcodec avutil"
2532 encode_video_example_deps="avcodec avutil"
2533 filter_audio_example_deps="avfilter avutil"
2534 metadata_example_deps="avformat avutil"
2535 output_example_deps="avcodec avformat avresample avutil swscale"
2536 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2537 transcode_aac_example_deps="avcodec avformat avresample"
2538
2539 # EXTRALIBS_LIST
2540 cpu_init_extralibs="pthreads_extralibs"
2541 cws2fws_extralibs="zlib_extralibs"
2542
2543 # libraries, in linking order
2544 avcodec_deps="avutil"
2545 avcodec_select="null_bsf"
2546 avdevice_deps="avformat avcodec avutil"
2547 avfilter_deps="avutil"
2548 avformat_deps="avcodec avutil"
2549 avformat_suggest="network"
2550 avresample_deps="avutil"
2551 swscale_deps="avutil"
2552
2553 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2554 avdevice_extralibs="libm_extralibs"
2555 avformat_extralibs="libm_extralibs"
2556 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2557 avresample_extralibs="libm_extralibs"
2558 avutil_extralibs="clock_gettime_extralibs cuda_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2559 swscale_extralibs="libm_extralibs"
2560
2561 # programs
2562 avconv_deps="avcodec avfilter avformat avresample swscale"
2563 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2564 fps_filter null_filter resample_filter scale_filter
2565 trim_filter"
2566 avconv_suggest="psapi shell32"
2567 avplay_deps="avcodec avfilter avformat avresample sdl"
2568 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2569 avplay_suggest="shell32"
2570 avprobe_deps="avcodec avformat"
2571 avprobe_suggest="shell32"
2572
2573 # documentation
2574 pod2man_deps="doc"
2575 texi2html_deps="doc"
2576
2577 # default parameters
2578
2579 logfile="avbuild/config.log"
2580
2581 # installation paths
2582 prefix_default="/usr/local"
2583 bindir_default='${prefix}/bin'
2584 datadir_default='${prefix}/share/avconv'
2585 docdir_default='${prefix}/share/doc/libav'
2586 incdir_default='${prefix}/include'
2587 libdir_default='${prefix}/lib'
2588 mandir_default='${prefix}/share/man'
2589 shlibdir_default="$libdir_default"
2590
2591 # toolchain
2592 ar_default="ar"
2593 cc_default="gcc"
2594 host_cc_default="gcc"
2595 x86asmexe_default="nasm"
2596 ln_s="ln -s -f"
2597 nm_default="nm -g"
2598 pkg_config_default=pkg-config
2599 ranlib="ranlib"
2600 strip="strip"
2601 version_script='--version-script'
2602
2603 # machine
2604 arch_default=$(uname -m)
2605 cpu="generic"
2606 intrinsics="none"
2607
2608 # OS
2609 target_os_default=$(tolower $(uname -s))
2610 host_os=$target_os_default
2611
2612 # configurable options
2613 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2614
2615 enable asm
2616 enable debug
2617 enable doc
2618 enable faan faandct faanidct
2619 enable optimizations
2620 enable safe_bitstream_reader
2621 enable static
2622 enable swscale_alpha
2623 enable valgrind_backtrace
2624
2625 # By default, enable only those hwaccels that have no external dependencies.
2626 enable d3d11va dxva2 vda vdpau
2627
2628 # internal components are enabled by default
2629 enable $EXTRALIBS_LIST
2630
2631 # Avoid external, non-system, libraries getting enabled by dependency resolution
2632 disable $EXTERNAL_LIBRARY_LIST
2633
2634 # build settings
2635 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2636 LIBPREF="lib"
2637 LIBSUF=".a"
2638 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2639 SLIBPREF="lib"
2640 SLIBSUF=".so"
2641 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2642 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2643 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2644 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2645 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2646 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2647 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2648
2649 asflags_filter=echo
2650 cflags_filter=echo
2651 ldflags_filter=echo
2652
2653 AS_C='-c'
2654 AS_O='-o $@'
2655 CC_C='-c'
2656 CC_E='-E -o $@'
2657 CC_O='-o $@'
2658 OBJCC_C='-c'
2659 OBJCC_E='-E -o $@'
2660 OBJCC_O='-o $@'
2661 X86ASM_O='-o $@'
2662 LD_O='-o $@'
2663 LD_LIB='-l%'
2664 LD_PATH='-L'
2665 HOSTCC_C='-c'
2666 HOSTCC_E='-E -o $@'
2667 HOSTCC_O='-o $@'
2668 HOSTLD_O='-o $@'
2669
2670 host_extralibs='-lm'
2671 host_cflags_filter=echo
2672 host_ldflags_filter=echo
2673
2674 target_path='$(CURDIR)'
2675
2676 # since the object filename is not given with the -MM flag, the compiler
2677 # is only able to print the basename, and we must add the path ourselves
2678 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2679 DEPFLAGS='-MM'
2680
2681 mkdir -p avbuild
2682
2683 # find source path
2684 if test -f configure; then
2685 source_path=.
2686 else
2687 source_path=$(cd $(dirname "$0"); pwd)
2688 echo "$source_path" | grep -q '[[:blank:]]' &&
2689 die "Out of tree builds are impossible with whitespace in source path."
2690 test -e "$source_path/config.h" &&
2691 die "Out of tree builds are impossible with config.h in source dir."
2692 fi
2693
2694 for v in "$@"; do
2695 r=${v#*=}
2696 l=${v%"$r"}
2697 r=$(sh_quote "$r")
2698 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2699 done
2700
2701 find_things(){
2702 thing=$1
2703 pattern=$2
2704 file=$source_path/$3
2705 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2706 }
2707
2708 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2709 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2710 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2711 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2712 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2713 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2714 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2715 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2716 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2717
2718 find_things_extern(){
2719 thing=$1
2720 pattern=$2
2721 file=$source_path/$3
2722 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2723 }
2724
2725 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2726 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2727
2728 AVCODEC_COMPONENTS_LIST="
2729 $BSF_LIST
2730 $DECODER_LIST
2731 $ENCODER_LIST
2732 $HWACCEL_LIST
2733 $PARSER_LIST
2734 "
2735
2736 AVDEVICE_COMPONENTS_LIST="
2737 $INDEV_LIST
2738 $OUTDEV_LIST
2739 "
2740
2741 AVFILTER_COMPONENTS_LIST="
2742 $FILTER_LIST
2743 "
2744
2745 AVFORMAT_COMPONENTS_LIST="
2746 $DEMUXER_LIST
2747 $MUXER_LIST
2748 $PROTOCOL_LIST
2749 "
2750
2751 ALL_COMPONENTS="
2752 $AVCODEC_COMPONENTS_LIST
2753 $AVDEVICE_COMPONENTS_LIST
2754 $AVFILTER_COMPONENTS_LIST
2755 $AVFORMAT_COMPONENTS_LIST
2756 "
2757
2758 for n in $COMPONENT_LIST; do
2759 v=$(toupper ${n%s})_LIST
2760 eval enable \$$v
2761 eval ${n}_if_any="\$$v"
2762 done
2763
2764 enable $ARCH_EXT_LIST
2765
2766 die_unknown(){
2767 echo "Unknown option \"$1\"."
2768 echo "See $0 --help for available options."
2769 exit 1
2770 }
2771
2772 print_3_columns() {
2773 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2774 }
2775
2776 show_list() {
2777 suffix=_$1
2778 shift
2779 echo $* | sed s/$suffix//g | print_3_columns
2780 exit 0
2781 }
2782
2783 rand_list(){
2784 IFS=', '
2785 set -- $*
2786 unset IFS
2787 for thing; do
2788 comp=${thing%:*}
2789 prob=${thing#$comp}
2790 prob=${prob#:}
2791 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2792 echo "prob ${prob:-0.5}"
2793 printf '%s\n' $comp
2794 done
2795 }
2796
2797 do_random(){
2798 action=$1
2799 shift
2800 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2801 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2802 }
2803
2804 for opt do
2805 optval="${opt#*=}"
2806 case "$opt" in
2807 --extra-ldflags=*)
2808 add_ldflags $optval
2809 ;;
2810 --extra-ldexeflags=*)
2811 add_ldexeflags $optval
2812 ;;
2813 --extra-libs=*)
2814 add_extralibs $optval
2815 ;;
2816 --disable-devices)
2817 disable $INDEV_LIST $OUTDEV_LIST
2818 ;;
2819 --enable-debug=*)
2820 debuglevel="$optval"
2821 ;;
2822 --disable-programs)
2823 disable $PROGRAM_LIST
2824 ;;
2825 --disable-everything)
2826 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2827 ;;
2828 --disable-all)
2829 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2830 disable $LIBRARY_LIST $PROGRAM_LIST doc
2831 ;;
2832 --enable-random|--disable-random)
2833 action=${opt%%-random}
2834 do_random ${action#--} $COMPONENT_LIST
2835 ;;
2836 --enable-random=*|--disable-random=*)
2837 action=${opt%%-random=*}
2838 do_random ${action#--} $optval
2839 ;;
2840 --enable-*=*|--disable-*=*)
2841 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2842 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2843 eval list=\$$(toupper $thing)_LIST
2844 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2845 $action $(filter "$name" $list)
2846 ;;
2847 --enable-avserver|--disable-avserver*)
2848 warn "avserver has been removed, the ${opt} option is only"\
2849 "provided for compatibility and will be removed in the future"
2850 ;;
2851 --enable-yasm|--disable-yasm)
2852 warn "The ${opt} option is only provided for compatibility and will be\n"\
2853 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2854 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2855 ;;
2856 --enable-?*|--disable-?*)
2857 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2858 if is_in $option $COMPONENT_LIST; then
2859 test $action = disable && action=unset
2860 eval $action \$$(toupper ${option%s})_LIST
2861 elif is_in $option $CMDLINE_SELECT; then
2862 $action $option
2863 else
2864 die_unknown $opt
2865 fi
2866 ;;
2867 --list-*)
2868 NAME="${opt#--list-}"
2869 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2870 NAME=${NAME%s}
2871 eval show_list $NAME \$$(toupper $NAME)_LIST
2872 ;;
2873 --help|-h) show_help
2874 ;;
2875 --quiet|-q) quiet=yes
2876 ;;
2877 *)
2878 optname="${opt%%=*}"
2879 optname="${optname#--}"
2880 optname=$(echo "$optname" | sed 's/-/_/g')
2881 if is_in $optname $CMDLINE_SET; then
2882 eval $optname='$optval'
2883 elif is_in $optname $CMDLINE_APPEND; then
2884 append $optname "$optval"
2885 else
2886 die_unknown $opt
2887 fi
2888 ;;
2889 esac
2890 done
2891
2892 for e in $env; do
2893 eval "export $e"
2894 done
2895
2896 disabled logging && logfile=/dev/null
2897
2898 # Die early if licensing-related configure options are incompatible.
2899 die_license_disabled() {
2900 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2901 }
2902
2903 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2904 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2905 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2906
2907 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2908
2909 enabled_all gnutls openssl &&
2910 die "GnuTLS and OpenSSL must not be enabled at the same time."
2911
2912 # Disable all the library-specific components if the library itself
2913 # is disabled, see AVCODEC_LIST and following _LIST variables.
2914
2915 disable_components(){
2916 disabled ${1} && disable $(
2917 eval components="\$$(toupper ${1})_COMPONENTS"
2918 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2919 )
2920 }
2921
2922 map 'disable_components $v' $LIBRARY_LIST
2923
2924 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2925 set >> $logfile
2926
2927 case "$toolchain" in
2928 *-asan)
2929 cc_default="${toolchain%-asan}"
2930 add_cflags -fsanitize=address
2931 add_ldflags -fsanitize=address
2932 ;;
2933 *-msan)
2934 cc_default="${toolchain%-msan}"
2935 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2936 add_ldflags -fsanitize=memory
2937 ;;
2938 *-tsan)
2939 cc_default="${toolchain%-tsan}"
2940 add_cflags -fsanitize=thread -fPIE
2941 add_ldflags -fsanitize=thread -pie
2942 case "$toolchain" in
2943 gcc-tsan)
2944 add_cflags -fPIC
2945 add_ldflags -fPIC
2946 ;;
2947 esac
2948 ;;
2949 *-usan)
2950 cc_default="${toolchain%-usan}"
2951 add_cflags -fsanitize=undefined
2952 add_ldflags -fsanitize=undefined
2953 case "$toolchain" in
2954 clang-usan)
2955 add_cflags -O1
2956 ;;
2957 esac
2958 ;;
2959 valgrind-*)
2960 target_exec_default="valgrind"
2961 case "$toolchain" in
2962 valgrind-massif)
2963 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2964 ;;
2965 valgrind-memcheck)
2966 target_exec_args="--track-origins=yes --leak-check=full"
2967 ;;
2968 esac
2969 ;;
2970 msvc)
2971 # Check whether the current MSVC version needs the C99 converter.
2972 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2973 # support enough of C99 to build libav. Default to the new
2974 # behaviour if the regexp was unable to match anything, since this
2975 # successfully parses the version number of existing supported
2976 # versions that require the converter (MSVC 2010 and 2012).
2977 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2978 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2979 cc_default="cl"
2980 else
2981 cc_default="c99wrap cl"
2982 fi
2983 ld_default="$source_path/compat/windows/mslink"
2984 nm_default="dumpbin -symbols"
2985 ar_default="lib"
2986 case "$arch" in
2987 arm*)
2988 as_default="armasm"
2989 ;;
2990 esac
2991 target_os_default="win32"
2992 # Use a relative path for TMPDIR. This makes sure all the
2993 # ffconf temp files are written with a relative path, avoiding
2994 # issues with msys/win32 path conversion for MSVC parameters
2995 # such as -Fo<file> or -out:<file>.
2996 TMPDIR=.
2997 ;;
2998 icl)
2999 cc_default="icl"
3000 ld_default="xilink"
3001 nm_default="dumpbin -symbols"
3002 ar_default="xilib"
3003 target_os_default="win32"
3004 TMPDIR=.
3005 ;;
3006 gcov)
3007 add_cflags -fprofile-arcs -ftest-coverage
3008 add_ldflags -fprofile-arcs -ftest-coverage
3009 ;;
3010 llvm-cov)
3011 add_cflags -fprofile-arcs -ftest-coverage
3012 add_ldflags --coverage
3013 ;;
3014 hardened)
3015 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3016 add_cflags -fno-strict-overflow -fstack-protector-all
3017 add_ldflags -Wl,-z,relro -Wl,-z,now
3018 ;;
3019 ?*)
3020 die "Unknown toolchain $toolchain"
3021 ;;
3022 esac
3023
3024 test -n "$cross_prefix" && enable cross_compile
3025
3026 if enabled cross_compile; then
3027 test -n "$arch" && test -n "$target_os" ||
3028 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3029 fi
3030
3031 ar_default="${cross_prefix}${ar_default}"
3032 cc_default="${cross_prefix}${cc_default}"
3033 objcc_default="${cross_prefix}${objcc_default}"
3034 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3035 nm_default="${cross_prefix}${nm_default}"
3036 pkg_config_default="${cross_prefix}${pkg_config_default}"
3037 ranlib="${cross_prefix}${ranlib}"
3038 strip="${cross_prefix}${strip}"
3039
3040 sysinclude_default="${sysroot}/usr/include"
3041
3042 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3043 enabled cross_compile || host_cc_default=$cc
3044 set_default host_cc
3045
3046 if ! $pkg_config --version >/dev/null 2>&1; then
3047 warn "$pkg_config not found, library detection may fail."
3048 pkg_config=false
3049 fi
3050
3051 exesuf() {
3052 case $1 in
3053 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3054 esac
3055 }
3056
3057 EXESUF=$(exesuf $target_os)
3058 HOSTEXESUF=$(exesuf $host_os)
3059
3060 # set temporary file name
3061 : ${TMPDIR:=$TEMPDIR}
3062 : ${TMPDIR:=$TMP}
3063 : ${TMPDIR:=/tmp}
3064
3065 if ! check_cmd mktemp -u XXXXXX; then
3066 # simple replacement for missing mktemp
3067 # NOT SAFE FOR GENERAL USE
3068 mktemp(){
3069 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3070 echo "$tmpname"
3071 mkdir "$tmpname"
3072 }
3073 fi
3074
3075 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3076 die "Unable to create temporary directory in $TMPDIR."
3077
3078 tmpfile(){
3079 tmp="${AVTMPDIR}/test"$2
3080 (set -C; exec > $tmp) 2> /dev/null ||
3081 die "Unable to create temporary file in $AVTMPDIR."
3082 eval $1=$tmp
3083 }
3084
3085 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3086 trap 'exit 2' INT
3087
3088 tmpfile TMPASM .asm
3089 tmpfile TMPC .c
3090 tmpfile TMPE $EXESUF
3091 tmpfile TMPH .h
3092 tmpfile TMPO .o
3093 tmpfile TMPS .S
3094 tmpfile TMPSH .sh
3095 tmpfile TMPV .ver
3096
3097 unset -f mktemp
3098
3099 chmod +x $TMPE
3100
3101 # make sure we can execute files in $TMPDIR
3102 cat > $TMPSH 2>> $logfile <<EOF
3103 #! /bin/sh
3104 EOF
3105 chmod +x $TMPSH >> $logfile 2>&1
3106 if ! $TMPSH >> $logfile 2>&1; then
3107 cat <<EOF
3108 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3109 variable to another directory and make sure that it is not mounted noexec.
3110 EOF
3111 die "Sanity test failed."
3112 fi
3113
3114 armasm_flags(){
3115 for flag; do
3116 case $flag in
3117 # Filter out MSVC cl.exe options from cflags that shouldn't
3118 # be passed to gas-preprocessor
3119 -M[TD]*) ;;
3120 *) echo $flag ;;
3121 esac
3122 done
3123 }
3124
3125 ccc_flags(){
3126 for flag; do
3127 case $flag in
3128 -std=c99) echo -c99 ;;
3129 -mcpu=*) echo -arch ${flag#*=} ;;
3130 -mieee) echo -ieee ;;
3131 -O*|-fast) echo $flag ;;
3132 -fno-math-errno) echo -assume nomath_errno ;;
3133 -g) echo -g3 ;;
3134 -Wall) echo -msg_enable level2 ;;
3135 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3136 -Wl,*) echo $flag ;;
3137 -f*|-W*) ;;
3138 *) echo $flag ;;
3139 esac
3140 done
3141 }
3142
3143 cparser_flags(){
3144 for flag; do
3145 case $flag in
3146 -Wno-switch) echo -Wno-switch-enum ;;
3147 -Wno-format-zero-length) ;;
3148 -Wdisabled-optimization) ;;
3149 -Wno-pointer-sign) echo -Wno-other ;;
3150 *) echo $flag ;;
3151 esac
3152 done
3153 }
3154
3155 msvc_common_flags(){
3156 for flag; do
3157 case $flag in
3158 # In addition to specifying certain flags under the compiler
3159 # specific filters, they must be specified here as well or else the
3160 # generic catch all at the bottom will print the original flag.
3161 -Wall) ;;
3162 -Wextra) ;;
3163 -std=c99) ;;
3164 # Common flags
3165 -fomit-frame-pointer) ;;
3166 -g) echo -Z7 ;;
3167 -fno-math-errno) ;;
3168 -fno-common) ;;
3169 -fno-signed-zeros) ;;
3170 -fPIC) ;;
3171 -mthumb) ;;
3172 -march=*) ;;
3173 -lz) echo zlib.lib ;;
3174 -lx264) echo libx264.lib ;;
3175 -l*) echo ${flag#-l}.lib ;;
3176 -L*) echo -libpath:${flag#-L} ;;
3177 *) echo $flag ;;
3178 esac
3179 done
3180 }
3181
3182 msvc_flags(){
3183 msvc_common_flags "$@"
3184 for flag; do
3185 case $flag in
3186 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3187 -wd4554 ;;
3188 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3189 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3190 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3191 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3192 esac
3193 done
3194 }
3195
3196 icl_flags(){
3197 msvc_common_flags "$@"
3198 for flag; do
3199 case $flag in
3200 # Despite what Intel's documentation says -Wall, which is supported
3201 # on Windows, does enable remarks so disable them here.
3202 -Wall) echo $flag -Qdiag-disable:remark ;;
3203 -std=c99) echo -Qstd=c99 ;;
3204 esac
3205 done
3206 }
3207
3208 pgi_flags(){
3209 for flag; do
3210 case $flag in
3211 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3212 -fomit-frame-pointer) echo -Mnoframe ;;
3213 -g) echo -gopt ;;
3214 *) echo $flag ;;
3215 esac
3216 done
3217 }
3218
3219 suncc_flags(){
3220 for flag; do
3221 case $flag in
3222 -march=*|-mcpu=*)
3223 case "${flag#*=}" in
3224 native) echo -xtarget=native ;;
3225 v9|niagara) echo -xarch=sparc ;;
3226 ultrasparc) echo -xarch=sparcvis ;;
3227 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3228 i586|pentium) echo -xchip=pentium ;;
3229 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3230 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3231 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3232 pentium4*) echo -xtarget=pentium4 ;;
3233 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3234 *-sse3) echo -xarch=sse3 ;;
3235 core2) echo -xarch=ssse3 -xchip=core2 ;;
3236 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3237 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3238 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3239 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3240 k8|opteron|athlon64|athlon-fx)
3241 echo -xarch=sse2a ;;
3242 athlon*) echo -xarch=pentium_proa ;;
3243 esac
3244 ;;
3245 -std=c99) echo -xc99 ;;
3246 -fomit-frame-pointer) echo -xregs=frameptr ;;
3247 -fPIC) echo -KPIC -xcode=pic32 ;;
3248 -W*,*) echo $flag ;;
3249 -f*-*|-W*|-mimpure-text) ;;
3250 -shared) echo -G ;;
3251 *) echo $flag ;;
3252 esac
3253 done
3254 }
3255
3256 tms470_flags(){
3257 for flag; do
3258 case $flag in
3259 -march=*|-mcpu=*)
3260 case "${flag#*=}" in
3261 armv7-a|cortex-a*) echo -mv=7a8 ;;
3262 armv7-r|cortex-r*) echo -mv=7r4 ;;
3263 armv7-m|cortex-m*) echo -mv=7m3 ;;
3264 armv6*|arm11*) echo -mv=6 ;;
3265 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3266 echo -mv=5e ;;
3267 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3268 esac
3269 ;;
3270 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3271 -mfpu=vfp) echo --float_support=vfpv2 ;;
3272 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3273 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3274 -msoft-float) echo --float_support=vfplib ;;
3275 -O[0-3]|-mf=*) echo $flag ;;
3276 -g) echo -g -mn ;;
3277 -pds=*) echo $flag ;;
3278 -D*|-I*) echo $flag ;;
3279 --gcc|--abi=*) echo $flag ;;
3280 -me) echo $flag ;;
3281 esac
3282 done
3283 }
3284
3285 probe_cc(){
3286 pfx=$1
3287 _cc=$2
3288
3289 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3290 unset _ld_o _ldflags _ld_lib _ld_path
3291 unset _depflags _DEPCMD _DEPFLAGS
3292 _flags_filter=echo
3293
3294 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3295 _type=llvm_gcc
3296 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3297 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3298 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3299 _cflags_speed='-O3'
3300 _cflags_size='-Os'
3301 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3302 _type=gcc
3303 gcc_version=$($_cc --version | head -n1)
3304 gcc_basever=$($_cc -dumpversion)
3305 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3306 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3307 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3308 if ! $_cc -dumpversion | grep -q '^2\.'; then
3309 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3310 fi
3311 _cflags_speed='-O3'
3312 _cflags_size='-Os'
3313 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3314 _type=icc
3315 _ident=$($_cc --version | head -n1)
3316 _depflags='-MMD'
3317 _cflags_speed='-O3'
3318 _cflags_size='-Os'
3319 _cflags_noopt='-O1'
3320 elif $_cc -v 2>&1 | grep -q xlc; then
3321 _type=xlc
3322 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3323 _cflags_speed='-O5'
3324 _cflags_size='-O5 -qcompact'
3325 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3326 _type=ccc
3327 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3328 _DEPFLAGS='-M'
3329 _cflags_speed='-fast'
3330 _cflags_size='-O1'
3331 _flags_filter=ccc_flags
3332 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3333 test -d "$sysroot" || die "No valid sysroot specified."
3334 _type=armcc
3335 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3336 armcc_conf="$PWD/armcc.conf"
3337 $_cc --arm_linux_configure \
3338 --arm_linux_config_file="$armcc_conf" \
3339 --configure_sysroot="$sysroot" \
3340 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3341 die "Error creating armcc configuration file."
3342 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3343 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3344 as_default="${cross_prefix}gcc"
3345 _depflags='-MMD'
3346 _cflags_speed='-O3'
3347 _cflags_size='-Os'
3348 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3349 _type=tms470
3350 _ident=$($_cc -version | head -n1 | tr -s ' ')
3351 _flags='--gcc --abi=eabi -me'
3352 _cc_e='-ppl -fe=$@'
3353 _cc_o='-fe=$@'
3354 _depflags='-ppa -ppd=$(@:.o=.d)'
3355 _cflags_speed='-O3 -mf=5'
3356 _cflags_size='-O3 -mf=2'
3357 _flags_filter=tms470_flags
3358 elif $_cc -v 2>&1 | grep -q clang; then
3359 _type=clang
3360 _ident=$($_cc --version 2>/dev/null | head -n1)
3361 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3362 _cflags_speed='-O3'
3363 _cflags_size='-Os'
3364 elif $_cc -V 2>&1 | grep -q Sun; then
3365 _type=suncc
3366 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3367 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3368 _DEPFLAGS='-xM1 -xc99'
3369 _ldflags='-std=c99'
3370 _cflags_speed='-O5'
3371 _cflags_size='-O5 -xspace'
3372 _flags_filter=suncc_flags
3373 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3374 _type=pathscale
3375 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3376 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3377 _cflags_speed='-O2'
3378 _cflags_size='-Os'
3379 _flags_filter='filter_out -Wdisabled-optimization'
3380 elif $_cc -v 2>&1 | grep -q Open64; then
3381 _type=open64
3382 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3383 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3384 _cflags_speed='-O2'
3385 _cflags_size='-Os'
3386 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3387 elif $_cc -V 2>&1 | grep -q Portland; then
3388 _type=pgi
3389 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3390 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3391 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3392 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3393 _cflags_noopt="-O1"
3394 _flags_filter=pgi_flags
3395 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3396 _type=armasm
3397 _ident=$($_cc | head -n1)
3398 # 4509: "This form of conditional instruction is deprecated"
3399 _flags="-nologo -ignore 4509"
3400 _flags_filter=armasm_flags
3401 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3402 _type=msvc
3403 _ident=$($_cc 2>&1 | head -n1)
3404 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3405 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3406 _cflags_speed="-O2"
3407 _cflags_size="-O1"
3408 _cflags_noopt="-O1"
3409 if $_cc -nologo- 2>&1 | grep -q Linker; then
3410 _ld_o='-out:$@'
3411 else
3412 _ld_o='-Fe$@'
3413 fi
3414 _cc_o='-Fo$@'
3415 _cc_e='-P -Fi$@'
3416 _flags_filter=msvc_flags
3417 _ld_lib='lib%.a'
3418 _ld_path='-libpath:'
3419 _flags='-nologo'
3420 elif $_cc 2>&1 | grep -q Intel; then
3421 _type=icl
3422 _ident=$($_cc 2>&1 | head -n1)
3423 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3424 # Not only is O3 broken on 13.x+ but it is slower on all previous
3425 # versions (tested) as well.
3426 _cflags_speed="-O2"
3427 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3428 if $_cc 2>&1 | grep -q Linker; then
3429 _ld_o='-out:$@'
3430 else
3431 _ld_o='-Fe$@'
3432 fi
3433 _cc_o='-Fo$@'
3434 _cc_e='-P'
3435 _flags_filter=icl_flags
3436 _ld_lib='lib%.a'
3437 _ld_path='-libpath:'
3438 # -Qdiag-error to make icl error when seeing certain unknown arguments
3439 _flags='-nologo -Qdiag-error:4044,10157'
3440 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3441 # with MSVC which enables it by default.
3442 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3443 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3444 # lld can emulate multiple different linkers; in ms link.exe mode,
3445 # the -? parameter gives the help output which contains an identifyable
3446 # string, while it gives an error in other modes.
3447 _type=lld-link
3448 # The link.exe mode doesn't have a switch for getting the version,
3449 # but we can force it back to gnu mode and get the version from there.
3450 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3451 _ld_o='-out:$@'
3452 _flags_filter=msvc_flags
3453 _ld_lib='lib%.a'
3454 _ld_path='-libpath:'
3455 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3456 _type=cparser
3457 _ident=$($_cc --version | head -n1)
3458 _depflags='-MMD'
3459 _cflags_speed='-O4'
3460 _cflags_size='-O2'
3461 _flags_filter=cparser_flags
3462 fi
3463
3464 eval ${pfx}_type=\$_type
3465 eval ${pfx}_ident=\$_ident
3466 }
3467
3468 set_ccvars(){
3469 eval ${1}_C=\${_cc_c-\${${1}_C}}
3470 eval ${1}_E=\${_cc_e-\${${1}_E}}
3471 eval ${1}_O=\${_cc_o-\${${1}_O}}
3472
3473 if [ -n "$_depflags" ]; then
3474 eval ${1}_DEPFLAGS=\$_depflags
3475 else
3476 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3477 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3478 eval DEP${1}FLAGS=\$_flags
3479 fi
3480 }
3481
3482 probe_cc cc "$cc"
3483 cflags_filter=$_flags_filter
3484 cflags_speed=$_cflags_speed
3485 cflags_size=$_cflags_size
3486 cflags_noopt=$_cflags_noopt
3487 add_cflags $_flags $_cflags
3488 cc_ldflags=$_ldflags
3489 set_ccvars CC
3490
3491 probe_cc hostcc "$host_cc"
3492 host_cflags_filter=$_flags_filter
3493 host_cflags_speed=$_cflags_speed
3494 add_host_cflags $_flags $_cflags
3495 set_ccvars HOSTCC
3496
3497 test -n "$cc_type" && enable $cc_type ||
3498 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3499
3500 : ${as_default:=$cc}
3501 : ${objcc_default:=$cc}
3502 : ${dep_cc_default:=$cc}
3503 : ${ld_default:=$cc}
3504 : ${host_ld_default:=$host_cc}
3505 set_default ar as objcc dep_cc ld host_ld
3506
3507 probe_cc as "$as"
3508 asflags_filter=$_flags_filter
3509 add_asflags $_flags $_cflags
3510 set_ccvars AS
3511
3512 probe_cc objcc "$objcc"
3513 objcflags_filter=$_flags_filter
3514 add_objcflags $_flags $_cflags
3515 set_ccvars OBJC
3516
3517 probe_cc ld "$ld"
3518 ldflags_filter=$_flags_filter
3519 add_ldflags $_flags $_ldflags
3520 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3521 LD_O=${_ld_o-$LD_O}
3522 LD_LIB=${_ld_lib-$LD_LIB}
3523 LD_PATH=${_ld_path-$LD_PATH}
3524
3525 probe_cc hostld "$host_ld"
3526 host_ldflags_filter=$_flags_filter
3527 add_host_ldflags $_flags $_ldflags
3528 HOSTLD_O=${_ld_o-$HOSTLD_O}
3529
3530 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3531 probe_cc depcc "$dep_cc"
3532 CCDEP=${_DEPCMD:-$DEPCMD}
3533 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3534 DEPCCFLAGS=$_flags
3535 fi
3536
3537 if $ar 2>&1 | grep -q Microsoft; then
3538 arflags="-nologo"
3539 ar_o='-out:$@'
3540 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3541 arflags="rq"
3542 ar_o='$@'
3543 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3544 arflags='-Xany -r -c'
3545 ar_o='$@'
3546 else
3547 arflags="rc"
3548 ar_o='$@'
3549 fi
3550
3551 add_cflags $extra_cflags
3552 add_objcflags $extra_objcflags
3553 add_asflags $extra_cflags
3554
3555 if test -n "$sysroot"; then
3556 case "$cc_type" in
3557 gcc|llvm_gcc|clang)
3558 add_cppflags --sysroot="$sysroot"
3559 add_ldflags --sysroot="$sysroot"
3560 ;;
3561 tms470)
3562 add_cppflags -I"$sysinclude"
3563 add_ldflags --sysroot="$sysroot"
3564 ;;
3565 esac
3566 fi
3567
3568 if test "$cpu" = host; then
3569 enabled cross_compile &&
3570 die "--cpu=host makes no sense when cross-compiling."
3571
3572 case "$cc_type" in
3573 gcc|llvm_gcc)
3574 check_native(){
3575 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3576 sed -n "/cc1.*$1=/{
3577 s/.*$1=\\([^ ]*\\).*/\\1/
3578 p
3579 q
3580 }" $TMPE
3581 }
3582 cpu=$(check_native -march || check_native -mcpu)
3583 ;;
3584 esac
3585
3586 test "${cpu:-host}" = host &&
3587 die "--cpu=host not supported with compiler $cc"
3588 fi
3589
3590 # Deal with common $arch aliases
3591 case "$arch" in
3592 aarch64|arm64)
3593 arch="aarch64"
3594 ;;
3595 arm*)
3596 arch="arm"
3597 ;;
3598 mips*|IP*)
3599 case "$arch" in
3600 *el)
3601 add_cppflags -EL
3602 add_ldflags -EL
3603 ;;
3604 *eb)
3605 add_cppflags -EB
3606 add_ldflags -EB
3607 ;;
3608 esac
3609 arch="mips"
3610 ;;
3611 parisc*|hppa*)
3612 arch="parisc"
3613 ;;
3614 "Power Macintosh"|ppc*|powerpc*)
3615 arch="ppc"
3616 ;;
3617 s390|s390x)
3618 arch="s390"
3619 ;;
3620 sh4|sh)
3621 arch="sh4"
3622 ;;
3623 sun4u|sparc*)
3624 arch="sparc"
3625 ;;
3626 tilegx|tile-gx)
3627 arch="tilegx"
3628 ;;
3629 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3630 arch="x86"
3631 ;;
3632 esac
3633
3634 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3635 enable $arch
3636
3637 # Add processor-specific flags
3638 if enabled aarch64; then
3639
3640 case $cpu in
3641 armv*)
3642 cpuflags="-march=$cpu"
3643 ;;
3644 *)
3645 cpuflags="-mcpu=$cpu"
3646 ;;
3647 esac
3648
3649 elif enabled alpha; then
3650
3651 cpuflags="-mcpu=$cpu"
3652
3653 elif enabled arm; then
3654
3655 check_arm_arch() {
3656 check_cpp_condition stddef.h \
3657 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3658 $cpuflags
3659 }
3660
3661 probe_arm_arch() {
3662 if check_arm_arch 4; then echo armv4
3663 elif check_arm_arch 4T; then echo armv4t
3664 elif check_arm_arch 5; then echo armv5
3665 elif check_arm_arch 5E; then echo armv5e
3666 elif check_arm_arch 5T; then echo armv5t
3667 elif check_arm_arch 5TE; then echo armv5te
3668 elif check_arm_arch 5TEJ; then echo armv5te
3669 elif check_arm_arch 6; then echo armv6
3670 elif check_arm_arch 6J; then echo armv6j
3671 elif check_arm_arch 6K; then echo armv6k
3672 elif check_arm_arch 6Z; then echo armv6z
3673 elif check_arm_arch 6ZK; then echo armv6zk
3674 elif check_arm_arch 6T2; then echo armv6t2
3675 elif check_arm_arch 7; then echo armv7
3676 elif check_arm_arch 7A 7_A; then echo armv7-a
3677 elif check_arm_arch 7S; then echo armv7-a
3678 elif check_arm_arch 7R 7_R; then echo armv7-r
3679 elif check_arm_arch 7M 7_M; then echo armv7-m
3680 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3681 elif check_arm_arch 8A 8_A; then echo armv8-a
3682 fi
3683 }
3684
3685 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3686
3687 case $cpu in
3688 armv*)
3689 cpuflags="-march=$cpu"
3690 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3691 ;;
3692 *)
3693 cpuflags="-mcpu=$cpu"
3694 case $cpu in
3695 cortex-a*) subarch=armv7a ;;
3696 cortex-r*) subarch=armv7r ;;
3697 cortex-m*) enable thumb; subarch=armv7m ;;
3698 arm11*) subarch=armv6 ;;
3699 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3700 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3701 *) subarch=$(probe_arm_arch) ;;
3702 esac
3703 ;;
3704 esac
3705
3706 case "$subarch" in
3707 armv5t*) enable fast_clz ;;
3708 armv[6-8]*) enable fast_clz fast_unaligned ;;
3709 esac
3710
3711 elif enabled avr32; then
3712
3713 case $cpu in
3714 ap7[02]0[0-2])
3715 subarch="avr32_ap"
3716 cpuflags="-mpart=$cpu"
3717 ;;
3718 ap)
3719 subarch="avr32_ap"
3720 cpuflags="-march=$cpu"
3721 ;;
3722 uc3[ab]*)
3723 subarch="avr32_uc"
3724 cpuflags="-mcpu=$cpu"
3725 ;;
3726 uc)
3727 subarch="avr32_uc"
3728 cpuflags="-march=$cpu"
3729 ;;
3730 esac
3731
3732 elif enabled bfin; then
3733
3734 cpuflags="-mcpu=$cpu"
3735
3736 elif enabled mips; then
3737
3738 cpuflags="-march=$cpu"
3739
3740 elif enabled ppc; then
3741
3742 disable ldbrx
3743
3744 case $(tolower $cpu) in
3745 601|ppc601|powerpc601)
3746 cpuflags="-mcpu=601"
3747 disable altivec
3748 ;;
3749 603*|ppc603*|powerpc603*)
3750 cpuflags="-mcpu=603"
3751 disable altivec
3752 ;;
3753 604*|ppc604*|powerpc604*)
3754 cpuflags="-mcpu=604"
3755 disable altivec
3756 ;;
3757 g3|75*|ppc75*|powerpc75*)
3758 cpuflags="-mcpu=750"
3759 disable altivec
3760 ;;
3761 g4|745*|ppc745*|powerpc745*)
3762 cpuflags="-mcpu=7450"
3763 disable vsx
3764 ;;
3765 74*|ppc74*|powerpc74*)
3766 cpuflags="-mcpu=7400"
3767 disable vsx
3768 ;;
3769 g5|970|ppc970|powerpc970)
3770 cpuflags="-mcpu=970"
3771 disable vsx
3772 ;;
3773 power[3-6]*)
3774 cpuflags="-mcpu=$cpu"
3775 disable vsx
3776 ;;
3777 power[7-8]*)
3778 cpuflags="-mcpu=$cpu"
3779 enable ldbrx
3780 ;;
3781 cell)
3782 cpuflags="-mcpu=cell"
3783 enable ldbrx
3784 disable vsx
3785 ;;
3786 e500mc)
3787 cpuflags="-mcpu=e500mc"
3788 disable altivec
3789 ;;
3790 e500v2)
3791 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3792 disable altivec
3793 disable dcbzl
3794 ;;
3795 e500)
3796 cpuflags="-mcpu=8540 -mhard-float"
3797 disable altivec
3798 disable dcbzl
3799 ;;
3800 esac
3801
3802 elif enabled sparc; then
3803
3804 case $cpu in
3805 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3806 cpuflags="-mcpu=$cpu"
3807 ;;
3808 ultrasparc*|niagara[234])
3809 cpuflags="-mcpu=$cpu"
3810 ;;
3811 esac
3812
3813 elif enabled x86; then
3814
3815 case $cpu in
3816 i[345]86|pentium)
3817 cpuflags="-march=$cpu"
3818 disable i686
3819 disable mmx
3820 ;;
3821 # targets that do NOT support nopl and conditional mov (cmov)
3822 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3823 cpuflags="-march=$cpu"
3824 disable i686
3825 ;;
3826 # targets that do support nopl and conditional mov (cmov)
3827 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3828 cpuflags="-march=$cpu"
3829 enable i686
3830 enable fast_cmov
3831 ;;
3832 # targets that do support conditional mov but on which it's slow
3833 pentium4|pentium4m|prescott|nocona)
3834 cpuflags="-march=$cpu"
3835 enable i686
3836 disable fast_cmov
3837 ;;
3838 esac
3839
3840 fi
3841
3842 if [ "$cpu" != generic ]; then
3843 add_cflags $cpuflags
3844 add_asflags $cpuflags
3845 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3846 fi
3847
3848 # compiler sanity check
3849 check_exec <<EOF
3850 int main(void){ return 0; }
3851 EOF
3852 if test "$?" != 0; then
3853 echo "$cc is unable to create an executable file."
3854 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3855 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3856 echo "Only do this if you know what cross compiling means."
3857 fi
3858 die "C compiler test failed."
3859 fi
3860
3861 add_cppflags -D_ISOC99_SOURCE
3862
3863 # some compilers silently accept -std=c11, so we also need to check that the
3864 # version macro is defined properly
3865 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3866 add_cflags -std=c11 ||
3867 check_cflags -std=c99
3868
3869 check_cppflags -D_FILE_OFFSET_BITS=64
3870 check_cppflags -D_LARGEFILE_SOURCE
3871
3872 add_host_cppflags -D_ISOC99_SOURCE
3873 check_host_cflags -std=c99
3874 check_host_cflags -Wall
3875 check_host_cflags $host_cflags_speed
3876
3877 check_64bit(){
3878 arch32=$1
3879 arch64=$2
3880 expr=$3
3881 check_code cc "" "int test[2*($expr) - 1]" &&
3882 subarch=$arch64 || subarch=$arch32
3883 }
3884
3885 case "$arch" in
3886 aarch64|alpha|ia64)
3887 spic=$shared
3888 ;;
3889 mips)
3890 check_64bit mips mips64 '_MIPS_SIM > 1'
3891 spic=$shared
3892 ;;
3893 parisc)
3894 check_64bit parisc parisc64 'sizeof(void *) > 4'
3895 spic=$shared
3896 ;;
3897 ppc)
3898 check_64bit ppc ppc64 'sizeof(void *) > 4'
3899 spic=$shared
3900 ;;
3901 s390)
3902 check_64bit s390 s390x 'sizeof(void *) > 4'
3903 spic=$shared
3904 ;;
3905 sparc)
3906 check_64bit sparc sparc64 'sizeof(void *) > 4'
3907 spic=$shared
3908 ;;
3909 x86)
3910 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3911 if test "$subarch" = "x86_64"; then
3912 spic=$shared
3913 fi
3914 ;;
3915 esac
3916
3917 enable $subarch
3918 enabled spic && enable_weak pic
3919
3920 enabled x86_64 && objformat=elf64 || objformat="elf32"
3921
3922 # OS specific
3923 case $target_os in
3924 aix)
3925 SHFLAGS=-shared
3926 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3927 enabled shared && add_ldflags -Wl,-brtl
3928 ;;
3929 android)
3930 disable symver
3931 enable section_data_rel_ro
3932 SLIB_INSTALL_NAME='$(SLIBNAME)'
3933 SLIB_INSTALL_LINKS=
3934 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3935 ;;
3936 haiku)
3937 prefix_default="/boot/common"
3938 network_extralibs="-lnetwork"
3939 host_extralibs=
3940 ;;
3941 sunos)
3942 SHFLAGS='-shared -Wl,-h,$$(@F)'
3943 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3944 network_extralibs="-lsocket -lnsl"
3945 # When using suncc to build, the Solaris linker will mark
3946 # an executable with each instruction set encountered by
3947 # the Solaris assembler. As our libraries contain their own
3948 # guards for processor-specific code, instead suppress
3949 # generation of the HWCAPS ELF section on Solaris x86 only.
3950 enabled_all suncc x86 &&
3951 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3952 add_ldflags -Wl,-M,mapfile
3953 nm_default='nm -P -g'
3954 version_script='-M'
3955 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3956 ;;
3957 netbsd)
3958 disable symver
3959 oss_indev_extralibs="-lossaudio"
3960 oss_outdev_extralibs="-lossaudio"
3961 ;;
3962 openbsd|bitrig)
3963 disable symver
3964 SHFLAGS='-shared'
3965 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3966 SLIB_INSTALL_LINKS=
3967 oss_indev_extralibs="-lossaudio"
3968 oss_outdev_extralibs="-lossaudio"
3969 ;;
3970 dragonfly)
3971 disable symver
3972 ;;
3973 freebsd)
3974 ;;
3975 bsd/os)
3976 add_extralibs -lpoll -lgnugetopt
3977 ;;
3978 darwin)
3979 enabled ppc && add_asflags -force_cpusubtype_ALL
3980 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3981 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3982 add_ldflags -Wl,-dynamic,-search_paths_first
3983 check_cflags -Werror=partial-availability
3984 SLIBSUF=".dylib"
3985 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3986 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3987 enabled x86_64 && objformat="macho64" || objformat="macho32"
3988 enabled_any pic shared ||
3989 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3990 check_header dispatch/dispatch.h &&
3991 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3992 ;;
3993 msys*)
3994 die "Native MSYS builds are discouraged, please use the MINGW environment."
3995 ;;
3996 mingw32*|mingw64*)
3997 if test $target_os = "mingw32ce"; then
3998 disable network
3999 else
4000 target_os=mingw32
4001 fi
4002 LIBTARGET=i386
4003 if enabled x86_64; then
4004 LIBTARGET="i386:x86-64"
4005 elif enabled arm; then
4006 LIBTARGET=arm-wince
4007 fi
4008 check_ldflags -Wl,--nxcompat
4009 check_ldflags -Wl,--dynamicbase
4010 shlibdir_default="$bindir_default"
4011 SLIBPREF=""
4012 SLIBSUF=".dll"
4013 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4014 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4015 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4016 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4017 SLIB_INSTALL_LINKS=
4018 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4019 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4020 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4021 enabled x86_64 && objformat="win64" || objformat="win32"
4022 dlltool="${cross_prefix}dlltool"
4023 ranlib=:
4024 enable dos_paths
4025 ;;
4026 win32|win64)
4027 disable symver
4028 if enabled shared; then
4029 # Link to the import library instead of the normal static library
4030 # for shared libs.
4031 LD_LIB='%.lib'
4032 # Cannot build both shared and static libs with MSVC or icl.
4033 disable static
4034 fi
4035 shlibdir_default="$bindir_default"
4036 SLIBPREF=""
4037 SLIBSUF=".dll"
4038 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4039 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4040 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4041 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4042 SLIB_INSTALL_LINKS=
4043 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4044 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4045 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4046 enabled x86_64 && objformat="win64" || objformat="win32"
4047 ranlib=:
4048 enable dos_paths
4049 ;;
4050 cygwin*)
4051 target_os=cygwin
4052 shlibdir_default="$bindir_default"
4053 SLIBPREF="cyg"
4054 SLIBSUF=".dll"
4055 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4056 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4057 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4058 SLIB_INSTALL_LINKS=
4059 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4060 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4061 enabled x86_64 && objformat="win64" || objformat="win32"
4062 enable dos_paths
4063 ;;
4064 *-dos|freedos|opendos)
4065 network_extralibs="-lsocket"
4066 objformat="coff"
4067 enable dos_paths
4068 add_cppflags -U__STRICT_ANSI__
4069 ;;
4070 linux)
4071 enable dv1394
4072 enable section_data_rel_ro
4073 ;;
4074 irix*)
4075 target_os=irix
4076 ranlib="echo ignoring ranlib"
4077 ;;
4078 os/2*)
4079 ln_s="cp -f"
4080 objformat="aout"
4081 add_cppflags -D_GNU_SOURCE
4082 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4083 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4084 LIBSUF="_s.a"
4085 SLIBPREF=""
4086 SLIBSUF=".dll"
4087 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4088 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4089 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4090 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4091 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4092 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4093 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4094 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4095 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4096 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4097 enable dos_paths
4098 ;;
4099 gnu/kfreebsd)
4100 add_cppflags -D_BSD_SOURCE
4101 ;;
4102 gnu)
4103 ;;
4104 qnx)
4105 add_cppflags -D_QNX_SOURCE
4106 network_extralibs="-lsocket"
4107 ;;
4108 symbian)
4109 SLIBSUF=".dll"
4110 enable dos_paths
4111 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4112 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4113 add_ldflags -Wl,--target1-abs,--no-undefined \
4114 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4115 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4116 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4117 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4118 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4119 ;;
4120 osf1)
4121 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4122 ;;
4123 minix)
4124 ;;
4125 none)
4126 ;;
4127 *)
4128 die "Unknown OS '$target_os'."
4129 ;;
4130 esac
4131
4132 # determine libc flavour
4133
4134 probe_libc(){
4135 pfx=$1
4136 pfx_no_=${pfx%_}
4137 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4138 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4139 eval ${pfx}libc_type=uclibc
4140 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4141 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4142 eval ${pfx}libc_type=glibc
4143 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4144 # MinGW headers can be installed on Cygwin, so check for newlib first.
4145 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4146 eval ${pfx}libc_type=newlib
4147 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4148 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4149 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4150 eval ${pfx}libc_type=mingw64
4151 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4152 eval test \$${pfx_no_}cc_type = "gcc" &&
4153 add_${pfx}cppflags -D__printf__=__gnu_printf__
4154 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4155 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4156 eval ${pfx}libc_type=mingw32
4157 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4158 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4159 die "ERROR: MinGW32 runtime version must be >= 3.15."
4160 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4161 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4162 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4163 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4164 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4165 eval test \$${pfx_no_}cc_type = "gcc" &&
4166 add_${pfx}cppflags -D__printf__=__gnu_printf__
4167 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4168 eval ${pfx}libc_type=msvcrt
4169 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4170 if [ "$pfx" = host_ ]; then
4171 add_host_cppflags -Dsnprintf=_snprintf
4172 else
4173 add_compat strtod.o strtod=avpriv_strtod
4174 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4175 _snprintf=avpriv_snprintf \
4176 vsnprintf=avpriv_vsnprintf
4177 fi
4178 fi
4179 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4180 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4181 # 0x601 by default unless something else is set by the user.
4182 # This can easily lead to us detecting functions only present
4183 # in such new versions and producing binaries requiring windows 7.0.
4184 # Therefore explicitly set the default to XP unless the user has
4185 # set something else on the command line.
4186 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4187 # family. For these cases, configure is free to use any functions
4188 # found in the SDK headers by default. (Alternatively, we could force
4189 # _WIN32_WINNT to 0x0602 in that case.)
4190 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4191 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4192 #ifdef WINAPI_FAMILY
4193 #include <winapifamily.h>
4194 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4195 #error not desktop
4196 #endif
4197 #endif
4198 EOF
4199 if [ "$pfx" = "" ]; then
4200 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4201 fi
4202 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4203 eval ${pfx}libc_type=klibc
4204 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4205 eval ${pfx}libc_type=bionic
4206 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4207 eval ${pfx}libc_type=solaris
4208 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4209 else
4210 eval ${pfx}libc_type=default
4211 add_${pfx}cppflags -D_DEFAULT_SOURCE
4212 fi
4213 }
4214
4215 probe_libc
4216 test -n "$libc_type" && enable libc_$libc_type
4217 probe_libc host_
4218 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4219
4220 # hacks for compiler/libc/os combinations
4221
4222 case $libc_type in
4223 bionic)
4224 add_compat strtod.o strtod=avpriv_strtod
4225 ;;
4226 glibc)
4227 if enabled tms470; then
4228 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4229 add_cppflags -D__USER_LABEL_PREFIX__=
4230 add_cppflags -D__builtin_memset=memset
4231 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4232 add_cflags -pds=48 # incompatible redefinition of macro
4233 elif enabled ccc; then
4234 add_ldflags -Wl,-z,now # calls to libots crash without this
4235 fi
4236 ;;
4237 esac
4238
4239 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4240 add_cppflags '-I\$(SRC_PATH)/compat/float'
4241
4242 esc(){
4243 echo "$*" | 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