configure: Group system feature variables and system libraries together
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [avbuild/config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix_default]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs (USE WITH CARE)
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-pod2man do not build manual pages
116 --disable-texi2html do not build HTML documentation
117 --disable-avdevice disable libavdevice build
118 --disable-avcodec disable libavcodec build
119 --disable-avformat disable libavformat build
120 --disable-avutil disable libavutil build
121 --disable-swscale disable libswscale build
122 --disable-avfilter disable video filter support [no]
123 --disable-avresample disable libavresample build [no]
124 --disable-pthreads disable pthreads [auto]
125 --disable-w32threads disable Win32 threads [auto]
126 --disable-network disable network support [no]
127 --disable-dct disable DCT code
128 --disable-error-resilience disable error resilience code
129 --disable-lsp disable LSP code
130 --disable-lzo disable LZO decoder code
131 --disable-mdct disable MDCT code
132 --disable-rdft disable RDFT code
133 --disable-fft disable FFT code
134 --disable-faan disable floating point AAN (I)DCT code
135
136 Individual component options:
137 --disable-everything disable all components listed below
138 --disable-encoder=NAME disable encoder NAME
139 --enable-encoder=NAME enable encoder NAME
140 --disable-encoders disable all encoders
141 --disable-decoder=NAME disable decoder NAME
142 --enable-decoder=NAME enable decoder NAME
143 --disable-decoders disable all decoders
144 --disable-hwaccel=NAME disable hwaccel NAME
145 --enable-hwaccel=NAME enable hwaccel NAME
146 --disable-hwaccels disable all hwaccels
147 --disable-muxer=NAME disable muxer NAME
148 --enable-muxer=NAME enable muxer NAME
149 --disable-muxers disable all muxers
150 --disable-demuxer=NAME disable demuxer NAME
151 --enable-demuxer=NAME enable demuxer NAME
152 --disable-demuxers disable all demuxers
153 --enable-parser=NAME enable parser NAME
154 --disable-parser=NAME disable parser NAME
155 --disable-parsers disable all parsers
156 --enable-bsf=NAME enable bitstream filter NAME
157 --disable-bsf=NAME disable bitstream filter NAME
158 --disable-bsfs disable all bitstream filters
159 --enable-protocol=NAME enable protocol NAME
160 --disable-protocol=NAME disable protocol NAME
161 --disable-protocols disable all protocols
162 --enable-indev=NAME enable input device NAME
163 --disable-indev=NAME disable input device NAME
164 --disable-indevs disable input devices
165 --disable-devices disable all devices
166 --enable-filter=NAME enable filter NAME
167 --disable-filter=NAME disable filter NAME
168 --disable-filters disable all filters
169
170 External library support:
171
172 Using any of the following switches will allow Libav to link to the
173 corresponding external library. All the components depending on that library
174 will become enabled, if all their other dependencies are met and they are not
175 explicitly disabled. E.g. --enable-libwavpack will enable linking to
176 libwavpack and allow the libwavpack encoder to be built, unless it is
177 specifically disabled with --disable-encoder=libwavpack.
178
179 Note that only the system libraries are auto-detected. All the other external
180 libraries must be explicitly enabled.
181
182 Also note that the following help text describes the purpose of the libraries
183 themselves, not all their features will necessarily be usable by Libav.
184
185 --enable-avisynth video frameserver
186 --enable-avxsynth Linux version of AviSynth
187 --enable-bzlib bzip2 compression [autodetect]
188 --enable-frei0r video filtering plugins
189 --enable-gnutls crypto
190 --enable-libbs2b Bauer stereophonic-to-binaural DSP
191 --enable-libcdio audio CD input
192 --enable-libdc1394 IEEE 1394/Firewire camera input
193 --enable-libdcadec DCA audio decoding
194 --enable-libfaac AAC audio encoding
195 --enable-libfdk-aac AAC audio encoding/decoding
196 --enable-libfontconfig font configuration and management
197 --enable-libfreetype font rendering
198 --enable-libgsm GSM audio encoding/decoding
199 --enable-libhdcd HDCD decoding filter
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libjack JACK audio sound server
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-cuvid Nvidia CUVID video decode acceleration
236 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
237 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
238 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
239 --enable-libnpp Nvidia CUDA processing
240 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
241 --enable-nvenc Nvidia video encoding
242 --enable-omx OpenMAX IL
243 --enable-omx-rpi OpenMAX IL for Raspberry Pi
244 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
245 --enable-vda Apple Video Decode Acceleration [auto]
246 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
247
248 Toolchain options:
249 --arch=ARCH select architecture [$arch]
250 --cpu=CPU select the minimum required CPU (affects
251 instruction selection, may crash on older CPUs)
252 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
253 --enable-cross-compile assume a cross-compiler is used
254 --sysroot=PATH root of cross-build tree
255 --sysinclude=PATH location of cross-build system headers
256 --target-os=OS compiler targets OS [$target_os]
257 --target-exec=CMD command to run executables on target
258 --target-path=DIR path to view of build directory on target
259 --target-samples=DIR path to samples directory on target
260 --toolchain=NAME set tool defaults according to NAME
261 --nm=NM use nm tool
262 --ar=AR use archive tool AR [$ar_default]
263 --as=AS use assembler AS [$as_default]
264 --cc=CC use C compiler CC [$cc_default]
265 --objcc=OCC use ObjC compiler OCC [$cc_default]
266 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
267 --ld=LD use linker LD
268 --x86asmexe=X86ASM use x86 assembler X86ASM
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
300
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-x86asm disable use of standalone x86 assembly
328
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --disable-valgrind-backtrace do not print a backtrace under Valgrind
341 (only applies to --disable-optimizations builds)
342 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
343 in the name) of tests whose result is ignored
344
345 NOTE: Object files are built at the place where configure is launched.
346 EOF
347 exit 0
348 }
349
350 quotes='""'
351
352 log(){
353 echo "$@" >> $logfile
354 }
355
356 log_file(){
357 log BEGIN $1
358 i=1
359 while read line; do
360 printf '%5s %s\n' "${i}" "${line}"
361 i=$(($i+1))
362 done < $1 >> $logfile
363 log END $1
364 }
365
366 echolog(){
367 log "$@"
368 echo "$@"
369 }
370
371 warn(){
372 log "WARNING: $*"
373 WARNINGS="${WARNINGS}WARNING: $*\n"
374 }
375
376 die(){
377 echolog "$@"
378 cat <<EOF
379
380 If you think configure made a mistake, make sure you are using the latest
381 version from Git. If the latest version fails, report the problem to the
382 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
383 EOF
384 if disabled logging; then
385 cat <<EOF
386 Rerun configure with logging enabled (do not use --disable-logging), and
387 include the log this produces with your report.
388 EOF
389 else
390 cat <<EOF
391 Include the log file "$logfile" produced by configure as this will help
392 solving the problem.
393 EOF
394 fi
395 exit 1
396 }
397
398 # Avoid locale weirdness, besides we really just want to translate ASCII.
399 toupper(){
400 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
401 }
402
403 tolower(){
404 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
405 }
406
407 c_escape(){
408 echo "$*" | sed 's/["\\]/\\\0/g'
409 }
410
411 sh_quote(){
412 v=$(echo "$1" | sed "s/'/'\\\\''/g")
413 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
414 echo "$v"
415 }
416
417 cleanws(){
418 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
419 }
420
421 filter(){
422 pat=$1
423 shift
424 for v; do
425 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
426 done
427 }
428
429 filter_out(){
430 pat=$1
431 shift
432 for v; do
433 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
434 done
435 }
436
437 map(){
438 m=$1
439 shift
440 for v; do eval $m; done
441 }
442
443 add_suffix(){
444 suffix=$1
445 shift
446 for v; do echo ${v}${suffix}; done
447 }
448
449 set_all(){
450 value=$1
451 shift
452 for var in $*; do
453 eval $var=$value
454 done
455 }
456
457 set_weak(){
458 value=$1
459 shift
460 for var; do
461 eval : \${$var:=$value}
462 done
463 }
464
465 sanitize_var_name(){
466 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
467 }
468
469 set_sanitized(){
470 var=$1
471 shift
472 eval $(sanitize_var_name "$var")='$*'
473 }
474
475 get_sanitized(){
476 eval echo \$$(sanitize_var_name "$1")
477 }
478
479 pushvar(){
480 for pvar in $*; do
481 eval level=\${${pvar}_level:=0}
482 eval ${pvar}_${level}="\$$pvar"
483 eval ${pvar}_level=$(($level+1))
484 done
485 }
486
487 popvar(){
488 for pvar in $*; do
489 eval level=\${${pvar}_level:-0}
490 test $level = 0 && continue
491 eval level=$(($level-1))
492 eval $pvar="\${${pvar}_${level}}"
493 eval ${pvar}_level=$level
494 eval unset ${pvar}_${level}
495 done
496 }
497
498 enable(){
499 set_all yes $*
500 }
501
502 disable(){
503 set_all no $*
504 }
505
506 enable_weak(){
507 set_weak yes $*
508 }
509
510 disable_weak(){
511 set_weak no $*
512 }
513
514 enable_sanitized(){
515 for var; do
516 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517 done
518 }
519
520 disable_sanitized(){
521 for var; do
522 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
523 done
524 }
525
526 do_enable_deep(){
527 for var; do
528 enabled $var && continue
529 eval sel="\$${var}_select"
530 eval sgs="\$${var}_suggest"
531 pushvar var sgs
532 enable_deep $sel
533 popvar sgs
534 enable_deep_weak $sgs
535 popvar var
536 done
537 }
538
539 enable_deep(){
540 do_enable_deep $*
541 enable $*
542 }
543
544 enable_deep_weak(){
545 for var; do
546 disabled $var && continue
547 pushvar var
548 do_enable_deep $var
549 popvar var
550 enable_weak $var
551 done
552 }
553
554 enabled(){
555 test "${1#!}" = "$1" && op== || op=!=
556 eval test "x\$${1#!}" $op "xyes"
557 }
558
559 disabled(){
560 test "${1#!}" = "$1" && op== || op=!=
561 eval test "x\$${1#!}" $op "xno"
562 }
563
564 enabled_all(){
565 for opt; do
566 enabled $opt || return 1
567 done
568 }
569
570 disabled_all(){
571 for opt; do
572 disabled $opt || return 1
573 done
574 }
575
576 enabled_any(){
577 for opt; do
578 enabled $opt && return 0
579 done
580 }
581
582 disabled_any(){
583 for opt; do
584 disabled $opt && return 0
585 done
586 return 1
587 }
588
589 set_default(){
590 for opt; do
591 eval : \${$opt:=\$${opt}_default}
592 done
593 }
594
595 is_in(){
596 value=$1
597 shift
598 for var in $*; do
599 [ $var = $value ] && return 0
600 done
601 return 1
602 }
603
604 check_deps(){
605 for cfg; do
606 enabled ${cfg}_checking && die "Circular dependency for $cfg."
607 disabled ${cfg}_checking && continue
608 enable ${cfg}_checking
609
610 eval dep_all="\$${cfg}_deps"
611 eval dep_any="\$${cfg}_deps_any"
612 eval dep_con="\$${cfg}_conflict"
613 eval dep_sel="\$${cfg}_select"
614 eval dep_sgs="\$${cfg}_suggest"
615 eval dep_ifa="\$${cfg}_if"
616 eval dep_ifn="\$${cfg}_if_any"
617
618 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
619 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
620 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
621
622 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
623 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
624 enabled_all $dep_all || disable $cfg
625 enabled_any $dep_any || disable $cfg
626 disabled_all $dep_con || disable $cfg
627 disabled_any $dep_sel && disable $cfg
628
629 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
630
631 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
632 # filter out library deps, these do not belong in extralibs
633 is_in $dep $LIBRARY_LIST && continue
634 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
635 done
636
637 disable ${cfg}_checking
638 done
639 }
640
641 print_config(){
642 pfx=$1
643 files=$2
644 shift 2
645 map 'eval echo "$v \${$v:-no}"' "$@" |
646 awk "BEGIN { split(\"$files\", files) }
647 {
648 c = \"$pfx\" toupper(\$1);
649 v = \$2;
650 sub(/yes/, 1, v);
651 sub(/no/, 0, v);
652 for (f in files) {
653 file = files[f];
654 if (file ~ /\\.h\$/) {
655 printf(\"#define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.asm\$/) {
657 printf(\"%%define %s %d\\n\", c, v) >>file;
658 } else if (file ~ /\\.mak\$/) {
659 n = -v ? \"\" : \"!\";
660 printf(\"%s%s=yes\\n\", n, c) >>file;
661 }
662 }
663 }"
664 }
665
666 print_enabled(){
667 suf=$1
668 shift
669 for v; do
670 enabled $v && printf "%s\n" ${v%$suf}
671 done
672 }
673
674 append(){
675 var=$1
676 shift
677 eval "$var=\"\$$var $*\""
678 }
679
680 prepend(){
681 var=$1
682 shift
683 eval "$var=\"$* \$$var\""
684 }
685
686 unique(){
687 var=$1
688 uniq_list=""
689 for tok in $(eval echo \$$var); do
690 uniq_list="$(filter_out $tok $uniq_list) $tok"
691 done
692 eval "$var=\"${uniq_list}\""
693 }
694
695 resolve(){
696 var=$1
697 tmpvar=
698 for entry in $(eval echo \$$var); do
699 tmpvar="$tmpvar $(eval echo \$${entry})"
700 done
701 eval "$var=\"${tmpvar}\""
702 }
703
704 add_cppflags(){
705 append CPPFLAGS "$@"
706 }
707
708 add_cflags(){
709 append CFLAGS $($cflags_filter "$@")
710 }
711
712 add_cflags_headers(){
713 append CFLAGS_HEADERS $($cflags_filter "$@")
714 }
715
716 add_asflags(){
717 append ASFLAGS $($asflags_filter "$@")
718 }
719
720 add_objcflags(){
721 append OBJCFLAGS $($objcflags_filter "$@")
722 }
723
724 add_ldflags(){
725 append LDFLAGS $($ldflags_filter "$@")
726 }
727
728 add_ldexeflags(){
729 append LDEXEFLAGS $($ldflags_filter "$@")
730 }
731
732 add_ldsoflags(){
733 append LDSOFLAGS $($ldflags_filter "$@")
734 }
735
736 add_stripflags(){
737 append STRIPFLAGS "$@"
738 }
739
740 add_extralibs(){
741 prepend extralibs $($ldflags_filter "$@")
742 }
743
744 add_host_cppflags(){
745 append host_cppflags "$@"
746 }
747
748 add_host_cflags(){
749 append host_cflags $($host_cflags_filter "$@")
750 }
751
752 add_host_ldflags(){
753 append host_ldflags $($host_ldflags_filter "$@")
754 }
755
756 add_compat(){
757 append compat_objs $1
758 shift
759 map 'add_cppflags -D$v' "$@"
760 }
761
762 check_cmd(){
763 log "$@"
764 "$@" >> $logfile 2>&1
765 }
766
767 cc_o(){
768 eval printf '%s\\n' $CC_O
769 }
770
771 cc_e(){
772 eval printf '%s\\n' $CC_E
773 }
774
775 check_cc(){
776 log check_cc "$@"
777 cat > $TMPC
778 log_file $TMPC
779 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
780 }
781
782 check_objcc(){
783 log check_objcc "$@"
784 cat > $TMPC
785 log_file $TMPC
786 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
787 }
788
789 check_cpp(){
790 log check_cpp "$@"
791 cat > $TMPC
792 log_file $TMPC
793 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
794 }
795
796 as_o(){
797 eval printf '%s\\n' $AS_O
798 }
799
800 check_as(){
801 log check_as "$@"
802 cat > $TMPS
803 log_file $TMPS
804 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
805 }
806
807 check_inline_asm(){
808 log check_inline_asm "$@"
809 name="$1"
810 code="$2"
811 shift 2
812 disable $name
813 check_cc "$@" <<EOF && enable $name
814 void foo(void){ __asm__ volatile($code); }
815 EOF
816 }
817
818 check_insn(){
819 log check_insn "$@"
820 check_inline_asm ${1}_inline "\"$2\""
821 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
822 }
823
824 check_x86asm(){
825 log check_x86asm "$@"
826 echo "$1" > $TMPS
827 log_file $TMPS
828 shift 1
829 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
830 }
831
832 ld_o(){
833 eval printf '%s\\n' $LD_O
834 }
835
836 check_ld(){
837 log check_ld "$@"
838 flags=$(filter_out '-l*' "$@")
839 libs=$(filter '-l*' "$@")
840 check_cc $($cflags_filter $flags) || return
841 flags=$($ldflags_filter $flags)
842 libs=$($ldflags_filter $libs)
843 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
844 }
845
846 print_include(){
847 hdr=$1
848 test "${hdr%.h}" = "${hdr}" &&
849 echo "#include $hdr" ||
850 echo "#include <$hdr>"
851 }
852
853 check_code(){
854 log check_code "$@"
855 check=$1
856 headers=$2
857 code=$3
858 shift 3
859 {
860 for hdr in $headers; do
861 print_include $hdr
862 done
863 echo "int main(void) { $code; return 0; }"
864 } | check_$check "$@"
865 }
866
867 check_cppflags(){
868 log check_cppflags "$@"
869 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
870 #include <stdlib.h>;
871 EOF
872 }
873
874 test_cflags(){
875 log test_cflags "$@"
876 set -- $($cflags_filter "$@")
877 check_cc "$@" <<EOF
878 int x;
879 EOF
880 }
881
882 check_cflags(){
883 log check_cflags "$@"
884 test_cflags "$@" && add_cflags "$@"
885 }
886
887 test_objcflags(){
888 log test_objcflags "$@"
889 set -- $($objcflags_filter "$@")
890 check_objcc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_objcflags(){
896 log check_objcflags "$@"
897 test_objcflags "$@" && add_objcflags "$@"
898 }
899
900 test_ldflags(){
901 log test_ldflags "$@"
902 check_ld "$@" <<EOF
903 int main(void){ return 0; }
904 EOF
905 }
906
907 check_ldflags(){
908 log check_ldflags "$@"
909 test_ldflags "$@" && add_ldflags "$@"
910 }
911
912 test_stripflags(){
913 log test_stripflags "$@"
914 # call check_cc to get a fresh TMPO
915 check_cc <<EOF
916 int main(void) { return 0; }
917 EOF
918 check_cmd $strip $STRIPFLAGS "$@" $TMPO
919 }
920
921 check_stripflags(){
922 log check_stripflags "$@"
923 test_stripflags "$@" && add_stripflags "$@"
924 }
925
926 check_header(){
927 log check_header "$@"
928 headers=$1
929 shift
930 disable_sanitized $headers
931 {
932 for hdr in $headers; do
933 print_include $hdr
934 done
935 echo "int x;"
936 } | check_cpp "$@" && enable_sanitized $headers
937 }
938
939 check_func(){
940 log check_func "$@"
941 func=$1
942 shift
943 disable $func
944 check_ld "$@" <<EOF && enable $func
945 extern int $func();
946 int main(void){ $func(); }
947 EOF
948 }
949
950 check_mathfunc(){
951 log check_mathfunc "$@"
952 func=$1
953 narg=$2
954 shift 2
955 test $narg = 2 && args="f, g" || args="f"
956 disable $func
957 check_ld "$@" <<EOF && enable $func
958 #include <math.h>
959 float foo(float f, float g) { return $func($args); }
960 int main(void){ return 0; }
961 EOF
962 }
963
964 check_func_headers(){
965 log check_func_headers "$@"
966 headers=$1
967 funcs=$2
968 shift 2
969 {
970 for hdr in $headers; do
971 print_include $hdr
972 done
973 for func in $funcs; do
974 echo "long check_$func(void) { return (long) $func; }"
975 done
976 echo "int main(void) { return 0; }"
977 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
978 }
979
980 check_cpp_condition(){
981 log check_cpp_condition "$@"
982 header=$1
983 condition=$2
984 shift 2
985 check_cpp "$@" <<EOF
986 #include <$header>
987 #if !($condition)
988 #error "unsatisfied condition: $condition"
989 #endif
990 EOF
991 }
992
993 test_cflags_cpp(){
994 log test_cflags_cpp "$@"
995 flags=$1
996 condition=$2
997 shift 2
998 set -- $($cflags_filter "$flags")
999 check_cpp "$@" <<EOF
1000 #if !($condition)
1001 #error "unsatisfied condition: $condition"
1002 #endif
1003 EOF
1004 }
1005
1006 check_lib(){
1007 log check_lib "$@"
1008 name="$1"
1009 headers="$2"
1010 funcs="$3"
1011 shift 3
1012 disable $name
1013 check_func_headers "$headers" "$funcs" "$@" &&
1014 enable $name && eval ${name}_extralibs="\$@"
1015 }
1016
1017 test_pkg_config(){
1018 log test_pkg_config "$@"
1019 name="$1"
1020 pkg_version="$2"
1021 pkg="${2%% *}"
1022 headers="$3"
1023 funcs="$4"
1024 shift 4
1025 disable $name
1026 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1027 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1028 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1029 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1030 enable $name &&
1031 set_sanitized "${name}_cflags" $pkg_cflags &&
1032 set_sanitized "${name}_extralibs" $pkg_libs
1033 }
1034
1035 check_pkg_config(){
1036 log check_pkg_config "$@"
1037 name="$1"
1038 test_pkg_config "$@" &&
1039 eval add_cflags \$${name}_cflags
1040 }
1041
1042 check_exec(){
1043 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1044 }
1045
1046 check_exec_crash(){
1047 log check_exec_crash "$@"
1048 code=$(cat)
1049
1050 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1051 # are safe but may not be available everywhere. Thus we use
1052 # raise(SIGTERM) instead. The check is run in a subshell so we
1053 # can redirect the "Terminated" message from the shell. SIGBUS
1054 # is not defined by standard C so it is used conditionally.
1055
1056 (check_exec "$@") >> $logfile 2>&1 <<EOF
1057 #include <signal.h>
1058 static void sighandler(int sig){
1059 raise(SIGTERM);
1060 }
1061 int foo(void){
1062 $code
1063 }
1064 int (*func_ptr)(void) = foo;
1065 int main(void){
1066 signal(SIGILL, sighandler);
1067 signal(SIGFPE, sighandler);
1068 signal(SIGSEGV, sighandler);
1069 #ifdef SIGBUS
1070 signal(SIGBUS, sighandler);
1071 #endif
1072 return func_ptr();
1073 }
1074 EOF
1075 }
1076
1077 check_type(){
1078 log check_type "$@"
1079 headers=$1
1080 type=$2
1081 shift 2
1082 disable_sanitized "$type"
1083 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1084 }
1085
1086 check_struct(){
1087 log check_struct "$@"
1088 headers=$1
1089 struct=$2
1090 member=$3
1091 shift 3
1092 disable_sanitized "${struct}_${member}"
1093 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1094 enable_sanitized "${struct}_${member}"
1095 }
1096
1097 check_builtin(){
1098 log check_builtin "$@"
1099 name=$1
1100 headers=$2
1101 builtin=$3
1102 shift 3
1103 disable "$name"
1104 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1105 }
1106
1107 check_compile_assert(){
1108 log check_compile_assert "$@"
1109 name=$1
1110 headers=$2
1111 condition=$3
1112 shift 3
1113 disable "$name"
1114 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1115 }
1116
1117 require(){
1118 log require "$@"
1119 name_version="$1"
1120 name="${1%% *}"
1121 headers="$2"
1122 func="$3"
1123 shift 3
1124 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1125 }
1126
1127 require_header(){
1128 log require "$@"
1129 headers="$1"
1130 shift
1131 check_header "$headers" "$@" || die "ERROR: $headers not found"
1132 }
1133
1134 require_cpp_condition(){
1135 log require "$@"
1136 header="$1"
1137 condition="$2"
1138 shift 2
1139 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1140 }
1141
1142 require_pkg_config(){
1143 log require_pkg_config "$@"
1144 pkg_version="$2"
1145 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1146 }
1147
1148 hostcc_e(){
1149 eval printf '%s\\n' $HOSTCC_E
1150 }
1151
1152 hostcc_o(){
1153 eval printf '%s\\n' $HOSTCC_O
1154 }
1155
1156 check_host_cc(){
1157 log check_host_cc "$@"
1158 cat > $TMPC
1159 log_file $TMPC
1160 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1161 }
1162
1163 check_host_cpp(){
1164 log check_host_cpp "$@"
1165 cat > $TMPC
1166 log_file $TMPC
1167 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1168 }
1169
1170 check_host_cppflags(){
1171 log check_host_cppflags "$@"
1172 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1173 #include <stdlib.h>;
1174 EOF
1175 }
1176
1177 check_host_cflags(){
1178 log check_host_cflags "$@"
1179 set -- $($host_cflags_filter "$@")
1180 check_host_cc "$@" <<EOF && append host_cflags "$@"
1181 int x;
1182 EOF
1183 }
1184
1185 check_host_cpp_condition(){
1186 log check_host_cpp_condition "$@"
1187 header=$1
1188 condition=$2
1189 shift 2
1190 check_host_cpp "$@" <<EOF
1191 #include <$header>
1192 #if !($condition)
1193 #error "unsatisfied condition: $condition"
1194 #endif
1195 EOF
1196 }
1197
1198 apply(){
1199 file=$1
1200 shift
1201 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1202 }
1203
1204 cp_if_changed(){
1205 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1206 mkdir -p "$(dirname $2)"
1207 cp -f "$1" "$2"
1208 }
1209
1210 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1211 # system-dependent things.
1212
1213 AVCODEC_COMPONENTS="
1214 bsfs
1215 decoders
1216 encoders
1217 hwaccels
1218 parsers
1219 "
1220
1221 AVDEVICE_COMPONENTS="
1222 indevs
1223 "
1224 AVFILTER_COMPONENTS="
1225 filters
1226 "
1227 AVFORMAT_COMPONENTS="
1228 demuxers
1229 muxers
1230 protocols
1231 "
1232
1233 COMPONENT_LIST="
1234 $AVCODEC_COMPONENTS
1235 $AVDEVICE_COMPONENTS
1236 $AVFILTER_COMPONENTS
1237 $AVFORMAT_COMPONENTS
1238 "
1239
1240 EXAMPLE_LIST="
1241 decode_audio_example
1242 decode_video_example
1243 encode_audio_example
1244 encode_video_example
1245 filter_audio_example
1246 metadata_example
1247 output_example
1248 qsvdec_example
1249 transcode_aac_example
1250 "
1251
1252 # catchall list of things that require external libs to link
1253 EXTRALIBS_LIST="
1254 cpu_init
1255 cws2fws
1256 "
1257
1258 HWACCEL_LIBRARY_NONFREE_LIST="
1259 cuda
1260 cuvid
1261 libnpp
1262 "
1263 HWACCEL_LIBRARY_LIST="
1264 $HWACCEL_LIBRARY_NONFREE_LIST
1265 d3d11va
1266 dxva2
1267 libmfx
1268 mmal
1269 nvenc
1270 omx
1271 vaapi
1272 vda
1273 vdpau
1274 "
1275
1276 EXTERNAL_LIBRARY_GPL_LIST="
1277 libcdio
1278 libx264
1279 libx265
1280 libxavs
1281 libxvid
1282 "
1283
1284 EXTERNAL_LIBRARY_NONFREE_LIST="
1285 libfaac
1286 libfdk_aac
1287 openssl
1288 "
1289
1290 EXTERNAL_LIBRARY_VERSION3_LIST="
1291 libopencore_amrnb
1292 libopencore_amrwb
1293 libvo_aacenc
1294 libvo_amrwbenc
1295 "
1296
1297 EXTERNAL_LIBRARY_LIST="
1298 $EXTERNAL_LIBRARY_GPL_LIST
1299 $EXTERNAL_LIBRARY_NONFREE_LIST
1300 $EXTERNAL_LIBRARY_VERSION3_LIST
1301 avisynth
1302 avxsynth
1303 frei0r
1304 gnutls
1305 libbs2b
1306 libdc1394
1307 libdcadec
1308 libfontconfig
1309 libfreetype
1310 libgsm
1311 libhdcd
1312 libilbc
1313 libjack
1314 libkvazaar
1315 libmp3lame
1316 libopencv
1317 libopenh264
1318 libopenjpeg
1319 libopus
1320 libpulse
1321 librtmp
1322 libschroedinger
1323 libsnappy
1324 libspeex
1325 libtheora
1326 libtwolame
1327 libvorbis
1328 libvpx
1329 libwavpack
1330 libwebp
1331 libxcb
1332 libxcb_shm
1333 libxcb_xfixes
1334 "
1335
1336 SYSTEM_LIBRARY_LIST="
1337 bzlib
1338 zlib
1339 "
1340
1341 FEATURE_LIST="
1342 gray
1343 hardcoded_tables
1344 omx_rpi
1345 runtime_cpudetect
1346 safe_bitstream_reader
1347 shared
1348 small
1349 sram
1350 static
1351 swscale_alpha
1352 "
1353
1354 LIBRARY_LIST="
1355 avcodec
1356 avdevice
1357 avfilter
1358 avformat
1359 avresample
1360 avutil
1361 swscale
1362 "
1363
1364 LICENSE_LIST="
1365 gpl
1366 nonfree
1367 version3
1368 "
1369
1370 PROGRAM_LIST="
1371 avconv
1372 avplay
1373 avprobe
1374 "
1375
1376 SUBSYSTEM_LIST="
1377 dct
1378 doc
1379 error_resilience
1380 faan
1381 fft
1382 lsp
1383 lzo
1384 mdct
1385 network
1386 rdft
1387 "
1388
1389 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1390 CONFIG_LIST="
1391 $EXAMPLE_LIST
1392 $EXTERNAL_LIBRARY_LIST
1393 $HWACCEL_LIBRARY_LIST
1394 $FEATURE_LIST
1395 $LICENSE_LIST
1396 $LIBRARY_LIST
1397 $PROGRAM_LIST
1398 $SUBSYSTEM_LIST
1399 $SYSTEM_LIBRARY_LIST
1400 neon_clobber_test
1401 pic
1402 pod2man
1403 texi2html
1404 thumb
1405 valgrind_backtrace
1406 xmm_clobber_test
1407 $COMPONENT_LIST
1408 "
1409
1410 THREADS_LIST="
1411 pthreads
1412 w32threads
1413 "
1414
1415 ATOMICS_LIST="
1416 atomics_gcc
1417 atomics_suncc
1418 atomics_win32
1419 "
1420
1421 ARCH_LIST="
1422 aarch64
1423 alpha
1424 arm
1425 avr32
1426 avr32_ap
1427 avr32_uc
1428 bfin
1429 ia64
1430 m68k
1431 mips
1432 mips64
1433 parisc
1434 ppc
1435 ppc64
1436 s390
1437 sh4
1438 sparc
1439 sparc64
1440 tilegx
1441 tilepro
1442 tomi
1443 x86
1444 x86_32
1445 x86_64
1446 "
1447
1448 ARCH_EXT_LIST_ARM="
1449 armv5te
1450 armv6
1451 armv6t2
1452 armv8
1453 neon
1454 vfp
1455 vfpv3
1456 "
1457
1458 ARCH_EXT_LIST_X86_SIMD="
1459 amd3dnow
1460 amd3dnowext
1461 avx
1462 avx2
1463 fma3
1464 fma4
1465 mmx
1466 mmxext
1467 sse
1468 sse2
1469 sse3
1470 sse4
1471 sse42
1472 ssse3
1473 xop
1474 "
1475
1476 ARCH_EXT_LIST_PPC="
1477 altivec
1478 dcbzl
1479 ldbrx
1480 power8
1481 ppc4xx
1482 vsx
1483 "
1484
1485 ARCH_EXT_LIST_X86="
1486 $ARCH_EXT_LIST_X86_SIMD
1487 cpunop
1488 i686
1489 "
1490
1491 ARCH_EXT_LIST_MIPS="
1492 loongson
1493 mips32r1
1494 mips64r1
1495 mips32r2
1496 mips64r2
1497 mips32r6
1498 mips64r6
1499 "
1500
1501 ARCH_EXT_LIST="
1502 $ARCH_EXT_LIST_ARM
1503 $ARCH_EXT_LIST_MIPS
1504 $ARCH_EXT_LIST_PPC
1505 $ARCH_EXT_LIST_X86
1506 vis
1507 "
1508
1509 ARCH_FEATURES="
1510 aligned_stack
1511 fast_64bit
1512 fast_clz
1513 fast_cmov
1514 local_aligned_8
1515 local_aligned_16
1516 local_aligned_32
1517 simd_align_16
1518 simd_align_32
1519 "
1520
1521 BUILTIN_LIST="
1522 atomic_cas_ptr
1523 machine_rw_barrier
1524 MemoryBarrier
1525 mm_empty
1526 rdtsc
1527 sem_timedwait
1528 sync_val_compare_and_swap
1529 "
1530 HAVE_LIST_CMDLINE="
1531 inline_asm
1532 symver
1533 x86asm
1534 "
1535
1536 HAVE_LIST_PUB="
1537 bigendian
1538 fast_unaligned
1539 "
1540
1541 HEADERS_LIST="
1542 AVFoundation_AVFoundation_h
1543 arpa_inet_h
1544 cdio_paranoia_h
1545 cdio_paranoia_paranoia_h
1546 dispatch_dispatch_h
1547 dev_bktr_ioctl_bt848_h
1548 dev_bktr_ioctl_meteor_h
1549 dev_ic_bt8xx_h
1550 dev_video_bktr_ioctl_bt848_h
1551 dev_video_meteor_ioctl_meteor_h
1552 direct_h
1553 dxgidebug_h
1554 dxva_h
1555 io_h
1556 machine_ioctl_bt848_h
1557 machine_ioctl_meteor_h
1558 malloc_h
1559 poll_h
1560 sys_param_h
1561 sys_resource_h
1562 sys_select_h
1563 sys_soundcard_h
1564 sys_time_h
1565 sys_un_h
1566 sys_videoio_h
1567 unistd_h
1568 valgrind_valgrind_h
1569 windows_h
1570 winsock2_h
1571 "
1572
1573 INTRINSICS_LIST="
1574 intrinsics_neon
1575 "
1576
1577 MATH_FUNCS="
1578 atanf
1579 atan2f
1580 cbrtf
1581 cosf
1582 exp2
1583 exp2f
1584 expf
1585 isinf
1586 isnan
1587 ldexpf
1588 llrint
1589 llrintf
1590 log2
1591 log2f
1592 log10f
1593 lrint
1594 lrintf
1595 powf
1596 rint
1597 round
1598 roundf
1599 sinf
1600 trunc
1601 truncf
1602 "
1603
1604 SYSTEM_FEATURES="
1605 dos_paths
1606 libc_msvcrt
1607 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1608 section_data_rel_ro
1609 threads
1610 uwp
1611 "
1612
1613 SYSTEM_FUNCS="
1614 aligned_malloc
1615 clock_gettime
1616 closesocket
1617 CommandLineToArgvW
1618 fcntl
1619 getaddrinfo
1620 gethrtime
1621 getopt
1622 GetProcessAffinityMask
1623 GetProcessMemoryInfo
1624 GetProcessTimes
1625 getrusage
1626 GetSystemTimeAsFileTime
1627 gettimeofday
1628 gmtime_r
1629 inet_aton
1630 isatty
1631 localtime_r
1632 mach_absolute_time
1633 MapViewOfFile
1634 memalign
1635 mmap
1636 mprotect
1637 nanosleep
1638 posix_memalign
1639 sched_getaffinity
1640 SetConsoleTextAttribute
1641 setmode
1642 setrlimit
1643 Sleep
1644 strerror_r
1645 sysconf
1646 sysctl
1647 usleep
1648 VirtualAlloc
1649 "
1650
1651 SYSTEM_LIBRARIES="
1652 sdl
1653 vaapi_drm
1654 vaapi_x11
1655 vdpau_x11
1656 wincrypt
1657 "
1658
1659 TOOLCHAIN_FEATURES="
1660 as_arch_directive
1661 as_fpu_directive
1662 as_func
1663 as_object_arch
1664 asm_mod_q
1665 blocks_extension
1666 ebp_available
1667 ebx_available
1668 gnu_as
1669 ibm_asm
1670 inline_asm_labels
1671 pragma_deprecated
1672 symver_asm_label
1673 symver_gnu_asm
1674 vfp_args
1675 xform_asm
1676 xmm_clobbers
1677 "
1678
1679 TYPES_LIST="
1680 CONDITION_VARIABLE_Ptr
1681 CUVIDDECODECREATEINFO_bitDepthMinus8
1682 socklen_t
1683 struct_addrinfo
1684 struct_group_source_req
1685 struct_ip_mreq_source
1686 struct_ipv6_mreq
1687 struct_pollfd
1688 struct_rusage_ru_maxrss
1689 struct_sockaddr_in6
1690 struct_sockaddr_sa_len
1691 struct_sockaddr_storage
1692 struct_v4l2_frmivalenum_discrete
1693 "
1694
1695 HAVE_LIST="
1696 $ARCH_EXT_LIST
1697 $(add_suffix _external $ARCH_EXT_LIST)
1698 $(add_suffix _inline $ARCH_EXT_LIST)
1699 $ARCH_FEATURES
1700 $BUILTIN_LIST
1701 $HAVE_LIST_CMDLINE
1702 $HAVE_LIST_PUB
1703 $HEADERS_LIST
1704 $INTRINSICS_LIST
1705 $MATH_FUNCS
1706 $SYSTEM_FEATURES
1707 $SYSTEM_FUNCS
1708 $SYSTEM_LIBRARIES
1709 $THREADS_LIST
1710 $TOOLCHAIN_FEATURES
1711 $TYPES_LIST
1712 "
1713
1714 # options emitted with CONFIG_ prefix but not available on the command line
1715 CONFIG_EXTRA="
1716 aandcttables
1717 ac3dsp
1718 adts_header
1719 audio_frame_queue
1720 audiodsp
1721 blockdsp
1722 bswapdsp
1723 cabac
1724 cbs
1725 cbs_h264
1726 cbs_h265
1727 cbs_mpeg2
1728 dirac_parse
1729 dvprofile
1730 faandct
1731 faanidct
1732 fdctdsp
1733 flacdsp
1734 fmtconvert
1735 g722dsp
1736 gmp
1737 golomb
1738 gplv3
1739 h263dsp
1740 h264chroma
1741 h264dsp
1742 h264parse
1743 h264pred
1744 h264qpel
1745 hevcparse
1746 hpeldsp
1747 huffman
1748 huffyuvdsp
1749 huffyuvencdsp
1750 idctdsp
1751 iirfilter
1752 imdct15
1753 intrax8
1754 iso_media
1755 ividsp
1756 jpegtables
1757 lgplv3
1758 libx262
1759 libxcb_shape
1760 lpc
1761 lzf
1762 me_cmp
1763 mpeg_er
1764 mpegaudio
1765 mpegaudiodsp
1766 mpegaudioheader
1767 mpegvideo
1768 mpegvideoenc
1769 mss34dsp
1770 pixblockdsp
1771 qpeldsp
1772 qsv
1773 qsvdec
1774 qsvenc
1775 qsvvpp
1776 rangecoder
1777 riffdec
1778 riffenc
1779 rtpdec
1780 rtpenc_chain
1781 rv34dsp
1782 sinewin
1783 snappy
1784 srtp
1785 startcode
1786 texturedsp
1787 texturedspenc
1788 tpeldsp
1789 vaapi_encode
1790 vc1dsp
1791 videodsp
1792 vp3dsp
1793 vp56dsp
1794 vp8dsp
1795 wma_freqs
1796 wmv2dsp
1797 "
1798
1799 CMDLINE_SELECT="
1800 $ARCH_EXT_LIST
1801 $CONFIG_LIST
1802 $HAVE_LIST_CMDLINE
1803 $THREADS_LIST
1804 asm
1805 cross_compile
1806 debug
1807 extra_warnings
1808 logging
1809 lto
1810 optimizations
1811 rpath
1812 "
1813
1814 PATHS_LIST="
1815 bindir
1816 datadir
1817 docdir
1818 incdir
1819 libdir
1820 mandir
1821 prefix
1822 shlibdir
1823 "
1824
1825 CMDLINE_SET="
1826 $PATHS_LIST
1827 ar
1828 arch
1829 as
1830 cc
1831 objcc
1832 cpu
1833 cross_prefix
1834 custom_allocator
1835 dep_cc
1836 env
1837 extra_version
1838 host_cc
1839 host_cflags
1840 host_extralibs
1841 host_ld
1842 host_ldflags
1843 host_os
1844 ignore_tests
1845 ld
1846 logfile
1847 malloc_prefix
1848 nm
1849 optflags
1850 pkg_config
1851 pkg_config_flags
1852 samples
1853 sysinclude
1854 sysroot
1855 target_exec
1856 target_os
1857 target_path
1858 target_samples
1859 toolchain
1860 x86asmexe
1861 "
1862
1863 CMDLINE_APPEND="
1864 extra_cflags
1865 extra_objcflags
1866 host_cppflags
1867 "
1868
1869 # code dependency declarations
1870
1871 # architecture extensions
1872
1873 armv5te_deps="arm"
1874 armv6_deps="arm"
1875 armv6t2_deps="arm"
1876 armv8_deps="aarch64"
1877 neon_deps_any="aarch64 arm"
1878 intrinsics_neon_deps="neon"
1879 vfp_deps_any="aarch64 arm"
1880 vfpv3_deps="vfp"
1881
1882 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1883
1884 altivec_deps="ppc"
1885 dcbzl_deps="ppc"
1886 ldbrx_deps="ppc"
1887 ppc4xx_deps="ppc"
1888 vsx_deps="altivec"
1889 power8_deps="vsx"
1890
1891 loongson_deps="mips"
1892 mips32r1_deps="mips32"
1893 mips32r2_deps="mips32"
1894 mips32r6_deps="mips32"
1895 mips64r1_deps="mips64"
1896 mips64r2_deps="mips64"
1897 mips64r6_deps="mips64"
1898
1899 vis_deps="sparc"
1900
1901 cpunop_deps="i686"
1902 x86_64_select="i686"
1903 x86_64_suggest="fast_cmov"
1904
1905 amd3dnow_deps="mmx"
1906 amd3dnowext_deps="amd3dnow"
1907 i686_deps="x86"
1908 mmx_deps="x86"
1909 mmxext_deps="mmx"
1910 sse_deps="mmxext"
1911 sse2_deps="sse"
1912 sse3_deps="sse2"
1913 ssse3_deps="sse3"
1914 sse4_deps="ssse3"
1915 sse42_deps="sse4"
1916 avx_deps="sse42"
1917 xop_deps="avx"
1918 fma3_deps="avx"
1919 fma4_deps="avx"
1920 avx2_deps="avx"
1921
1922 mmx_external_deps="x86asm"
1923 mmx_inline_deps="inline_asm x86"
1924 mmx_suggest="mmx_external mmx_inline"
1925
1926 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1927 eval dep=\$${ext}_deps
1928 eval ${ext}_external_deps='"${dep}_external"'
1929 eval ${ext}_inline_deps='"${dep}_inline"'
1930 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1931 done
1932
1933 aligned_stack_if_any="aarch64 ppc x86"
1934 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1935 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1936 fast_unaligned_if_any="aarch64 ppc x86"
1937 simd_align_16_if_any="altivec neon sse"
1938 simd_align_32_if_any="avx"
1939
1940 # system capabilities
1941 symver_if_any="symver_asm_label symver_gnu_asm"
1942 valgrind_backtrace_conflict="optimizations"
1943 valgrind_backtrace_deps="valgrind_valgrind_h"
1944
1945 # threading support
1946 atomics_gcc_if="sync_val_compare_and_swap"
1947 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1948 atomics_win32_if="MemoryBarrier"
1949 atomics_native_if_any="$ATOMICS_LIST"
1950 w32threads_deps="atomics_native"
1951 threads_if_any="$THREADS_LIST"
1952
1953 # subsystems
1954 cbs_h264_select="cbs golomb"
1955 cbs_h265_select="cbs golomb"
1956 cbs_mpeg2_select="cbs"
1957 dct_select="rdft"
1958 dirac_parse_select="golomb"
1959 error_resilience_select="me_cmp"
1960 faandct_deps="faan"
1961 faandct_select="fdctdsp"
1962 faanidct_deps="faan"
1963 faanidct_select="idctdsp"
1964 h264dsp_select="startcode"
1965 hevcparse_select="golomb"
1966 intrax8_select="blockdsp idctdsp"
1967 mdct_select="fft"
1968 rdft_select="fft"
1969 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1970 mpeg_er_select="error_resilience"
1971 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1972 mpegaudiodsp_select="dct"
1973 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1974 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1975 vc1dsp_select="h264chroma qpeldsp startcode"
1976
1977 # decoders / encoders
1978 aac_decoder_select="adts_header imdct15 mdct sinewin"
1979 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1980 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1981 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1982 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1983 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1984 adpcm_g722_decoder_select="g722dsp"
1985 adpcm_g722_encoder_select="g722dsp"
1986 aic_decoder_select="golomb idctdsp"
1987 alac_encoder_select="lpc"
1988 als_decoder_select="bswapdsp"
1989 amrnb_decoder_select="lsp"
1990 amrwb_decoder_select="lsp"
1991 amv_decoder_select="sp5x_decoder"
1992 ape_decoder_select="bswapdsp"
1993 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1994 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1995 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1996 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1997 atrac1_decoder_select="mdct sinewin"
1998 atrac3_decoder_select="mdct"
1999 atrac3p_decoder_select="mdct sinewin"
2000 bink_decoder_select="blockdsp hpeldsp"
2001 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2002 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2003 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2004 clearvideo_decoder_select="idctdsp"
2005 cllc_decoder_select="bswapdsp"
2006 comfortnoise_encoder_select="lpc"
2007 cook_decoder_select="audiodsp mdct sinewin"
2008 cscd_decoder_select="lzo"
2009 cscd_decoder_suggest="zlib"
2010 dca_decoder_select="fmtconvert mdct"
2011 dds_decoder_select="texturedsp"
2012 dnxhd_decoder_select="blockdsp idctdsp"
2013 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2014 dvvideo_decoder_select="dvprofile idctdsp"
2015 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2016 dxa_decoder_deps="zlib"
2017 dxv_decoder_select="lzf texturedsp"
2018 eac3_decoder_select="ac3_decoder"
2019 eac3_encoder_select="ac3_encoder"
2020 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2021 eatgq_decoder_select="aandcttables idctdsp"
2022 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2023 exr_decoder_deps="zlib"
2024 ffv1_decoder_select="rangecoder"
2025 ffv1_encoder_select="rangecoder"
2026 ffvhuff_decoder_select="huffyuv_decoder"
2027 ffvhuff_encoder_select="huffyuv_encoder"
2028 fic_decoder_select="golomb"
2029 flac_decoder_select="flacdsp"
2030 flac_encoder_select="bswapdsp flacdsp lpc"
2031 flashsv_decoder_deps="zlib"
2032 flashsv_encoder_deps="zlib"
2033 flashsv2_decoder_deps="zlib"
2034 flv_decoder_select="h263_decoder"
2035 flv_encoder_select="h263_encoder"
2036 fourxm_decoder_select="blockdsp bswapdsp"
2037 fraps_decoder_select="bswapdsp huffman"
2038 g2m_decoder_deps="zlib"
2039 g2m_decoder_select="blockdsp idctdsp jpegtables"
2040 h261_decoder_select="mpeg_er mpegvideo"
2041 h261_encoder_select="aandcttables mpegvideoenc"
2042 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2043 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2044 h263i_decoder_select="h263_decoder"
2045 h263p_encoder_select="h263_encoder"
2046 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2047 h264_decoder_suggest="error_resilience"
2048 hap_decoder_select="snappy texturedsp"
2049 hap_encoder_deps="libsnappy"
2050 hap_encoder_select="texturedspenc"
2051 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2052 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2053 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2054 iac_decoder_select="imc_decoder"
2055 imc_decoder_select="bswapdsp fft mdct sinewin"
2056 indeo3_decoder_select="hpeldsp"
2057 indeo4_decoder_select="ividsp"
2058 indeo5_decoder_select="ividsp"
2059 interplay_video_decoder_select="hpeldsp"
2060 jpegls_decoder_select="mjpeg_decoder"
2061 jv_decoder_select="blockdsp"
2062 lagarith_decoder_select="huffyuvdsp"
2063 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2064 magicyuv_decoder_select="huffyuvdsp"
2065 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2066 metasound_decoder_select="lsp mdct sinewin"
2067 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2068 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2069 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2070 mjpegb_decoder_select="mjpeg_decoder"
2071 mlp_decoder_select="mlp_parser"
2072 motionpixels_decoder_select="bswapdsp"
2073 mp1_decoder_select="mpegaudio"
2074 mp1float_decoder_select="mpegaudio"
2075 mp2_decoder_select="mpegaudio"
2076 mp2float_decoder_select="mpegaudio"
2077 mp3_decoder_select="mpegaudio"
2078 mp3adu_decoder_select="mpegaudio"
2079 mp3adufloat_decoder_select="mpegaudio"
2080 mp3float_decoder_select="mpegaudio"
2081 mp3on4_decoder_select="mpegaudio"
2082 mp3on4float_decoder_select="mpegaudio"
2083 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2084 mpc8_decoder_select="mpegaudiodsp"
2085 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2086 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2087 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2088 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2089 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2090 mpeg4_encoder_select="h263_encoder"
2091 msa1_decoder_select="mss34dsp"
2092 msmpeg4v1_decoder_select="h263_decoder"
2093 msmpeg4v2_decoder_select="h263_decoder"
2094 msmpeg4v2_encoder_select="h263_encoder"
2095 msmpeg4v3_decoder_select="h263_decoder"
2096 msmpeg4v3_encoder_select="h263_encoder"
2097 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2098 mts2_decoder_select="mss34dsp"
2099 mxpeg_decoder_select="mjpeg_decoder"
2100 nellymoser_decoder_select="mdct sinewin"
2101 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2102 nuv_decoder_select="idctdsp lzo"
2103 on2avc_decoder_select="mdct"
2104 opus_decoder_deps="avresample"
2105 opus_decoder_select="imdct15"
2106 png_decoder_deps="zlib"
2107 png_encoder_deps="zlib"
2108 png_encoder_select="huffyuvencdsp"
2109 prores_decoder_select="idctdsp"
2110 prores_encoder_select="fdctdsp"
2111 qcelp_decoder_select="lsp"
2112 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2113 ra_144_encoder_select="audio_frame_queue lpc"
2114 ralf_decoder_select="golomb"
2115 rscc_decoder_deps="zlib"
2116 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2117 rv10_encoder_select="h263_encoder"
2118 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2119 rv20_encoder_select="h263_encoder"
2120 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2121 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2122 screenpresso_decoder_deps="zlib"
2123 sipr_decoder_select="lsp"
2124 sp5x_decoder_select="mjpeg_decoder"
2125 svq1_decoder_select="hpeldsp"
2126 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2127 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2128 svq3_decoder_suggest="zlib"
2129 tak_decoder_select="audiodsp"
2130 tdsc_decoder_deps="zlib"
2131 tdsc_decoder_select="mjpeg_decoder"
2132 theora_decoder_select="vp3_decoder"
2133 thp_decoder_select="mjpeg_decoder"
2134 tiff_decoder_suggest="zlib"
2135 tiff_encoder_suggest="zlib"
2136 truehd_decoder_select="mlp_decoder"
2137 truemotion2_decoder_select="bswapdsp"
2138 truespeech_decoder_select="bswapdsp"
2139 tscc_decoder_deps="zlib"
2140 txd_decoder_select="texturedsp"
2141 twinvq_decoder_select="mdct lsp sinewin"
2142 utvideo_decoder_select="bswapdsp huffyuvdsp"
2143 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2144 vble_decoder_select="huffyuvdsp"
2145 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2146 vc1image_decoder_select="vc1_decoder"
2147 vorbis_decoder_select="mdct"
2148 vorbis_encoder_select="mdct"
2149 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2150 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2151 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2152 vp6a_decoder_select="vp6_decoder"
2153 vp6f_decoder_select="vp6_decoder"
2154 vp7_decoder_select="h264pred videodsp vp8dsp"
2155 vp8_decoder_select="h264pred videodsp vp8dsp"
2156 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2157 webp_decoder_select="vp8_decoder"
2158 wmapro_decoder_select="mdct sinewin wma_freqs"
2159 wmav1_decoder_select="mdct sinewin wma_freqs"
2160 wmav1_encoder_select="mdct sinewin wma_freqs"
2161 wmav2_decoder_select="mdct sinewin wma_freqs"
2162 wmav2_encoder_select="mdct sinewin wma_freqs"
2163 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2164 wmv1_decoder_select="h263_decoder"
2165 wmv1_encoder_select="h263_encoder"
2166 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2167 wmv2_encoder_select="h263_encoder wmv2dsp"
2168 wmv3_decoder_select="vc1_decoder"
2169 wmv3image_decoder_select="wmv3_decoder"
2170 zerocodec_decoder_deps="zlib"
2171 zlib_decoder_deps="zlib"
2172 zlib_encoder_deps="zlib"
2173 zmbv_decoder_deps="zlib"
2174 zmbv_encoder_deps="zlib"
2175
2176 # hardware accelerators
2177 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2178 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2179 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2180 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2181
2182 h263_vaapi_hwaccel_deps="vaapi"
2183 h263_vaapi_hwaccel_select="h263_decoder"
2184 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2185 h264_cuvid_hwaccel_select="h264_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_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2203 hevc_cuvid_hwaccel_select="hevc_decoder"
2204 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2205 hevc_d3d11va_hwaccel_select="hevc_decoder"
2206 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2207 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2208 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2209 hevc_dxva2_hwaccel_select="hevc_decoder"
2210 hevc_qsv_hwaccel_deps="libmfx"
2211 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2212 hevc_vaapi_hwaccel_select="hevc_decoder"
2213 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2214 hevc_vdpau_hwaccel_select="hevc_decoder"
2215 mpeg1_vdpau_hwaccel_deps="vdpau"
2216 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2217 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2218 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2219 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2220 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2221 mpeg2_dxva2_hwaccel_deps="dxva2"
2222 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2223 mpeg2_mmal_hwaccel_deps="mmal"
2224 mpeg2_qsv_hwaccel_deps="libmfx"
2225 mpeg2_vaapi_hwaccel_deps="vaapi"
2226 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2227 mpeg2_vdpau_hwaccel_deps="vdpau"
2228 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2229 mpeg4_vaapi_hwaccel_deps="vaapi"
2230 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2231 mpeg4_vdpau_hwaccel_deps="vdpau"
2232 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2233 vc1_d3d11va_hwaccel_deps="d3d11va"
2234 vc1_d3d11va_hwaccel_select="vc1_decoder"
2235 vc1_d3d11va2_hwaccel_deps="d3d11va"
2236 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2237 vc1_dxva2_hwaccel_deps="dxva2"
2238 vc1_dxva2_hwaccel_select="vc1_decoder"
2239 vc1_mmal_hwaccel_deps="mmal"
2240 vc1_qsv_hwaccel_deps="libmfx"
2241 vc1_vaapi_hwaccel_deps="vaapi"
2242 vc1_vaapi_hwaccel_select="vc1_decoder"
2243 vc1_vdpau_hwaccel_deps="vdpau"
2244 vc1_vdpau_hwaccel_select="vc1_decoder"
2245 vp8_qsv_hwaccel_deps="libmfx"
2246 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2247 vp8_vaapi_hwaccel_select="vp8_decoder"
2248 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2249 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2250 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2251 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2252 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2253
2254 # hardware-accelerated codecs
2255 nvenc_deps_any="libdl LoadLibrary"
2256 omx_deps="libdl pthreads"
2257 omx_rpi_select="omx"
2258 qsv_deps="libmfx"
2259 qsvdec_select="qsv"
2260 qsvenc_select="qsv"
2261 qsvvpp_select="qsv"
2262 vaapi_encode_deps="vaapi"
2263
2264 hwupload_cuda_filter_deps="cuda"
2265 scale_npp_filter_deps="cuda libnpp"
2266
2267 h264_mmal_decoder_deps="mmal"
2268 h264_nvenc_encoder_deps="nvenc"
2269 h264_omx_encoder_deps="omx"
2270 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2271 h264_qsv_encoder_select="qsvenc"
2272 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2273 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2274 hevc_nvenc_encoder_deps="nvenc"
2275 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2276 hevc_qsv_encoder_select="hevcparse qsvenc"
2277 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2278 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2279 mjpeg_qsv_encoder_deps="libmfx"
2280 mjpeg_qsv_encoder_select="qsvenc"
2281 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2282 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2283 mpeg2_mmal_decoder_deps="mmal"
2284 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2285 mpeg2_qsv_encoder_select="qsvenc"
2286 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2287 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2288 mpeg4_omx_encoder_deps="omx"
2289 vc1_mmal_decoder_deps="mmal"
2290 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2291 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2292 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2293 vp8_vaapi_encoder_select="vaapi_encode"
2294 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2295 vp9_vaapi_encoder_select="vaapi_encode"
2296
2297 nvenc_h264_encoder_select="h264_nvenc_encoder"
2298 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2299
2300 # parsers
2301 aac_parser_select="adts_header"
2302 h264_parser_select="golomb h264dsp h264parse"
2303 hevc_parser_select="hevcparse"
2304 mpegaudio_parser_select="mpegaudioheader"
2305 mpegvideo_parser_select="mpegvideo"
2306 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2307 vc1_parser_select="vc1dsp"
2308
2309 # bitstream_filters
2310 aac_adtstoasc_bsf_select="adts_header"
2311 h264_metadata_bsf_select="cbs_h264"
2312 h264_redundant_pps_bsf_select="cbs_h264"
2313 hevc_metadata_bsf_select="cbs_h265"
2314 mjpeg2jpeg_bsf_select="jpegtables"
2315 mpeg2_metadata_bsf_select="cbs_mpeg2"
2316 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2317
2318 # external libraries
2319 avisynth_deps="LoadLibrary"
2320 avxsynth_deps="libdl"
2321 avisynth_demuxer_deps_any="avisynth avxsynth"
2322 avisynth_demuxer_select="riffdec"
2323 libdcadec_decoder_deps="libdcadec"
2324 libfaac_encoder_deps="libfaac"
2325 libfaac_encoder_select="audio_frame_queue"
2326 libfdk_aac_decoder_deps="libfdk_aac"
2327 libfdk_aac_encoder_deps="libfdk_aac"
2328 libfdk_aac_encoder_select="audio_frame_queue"
2329 libgsm_decoder_deps="libgsm"
2330 libgsm_encoder_deps="libgsm"
2331 libgsm_ms_decoder_deps="libgsm"
2332 libgsm_ms_encoder_deps="libgsm"
2333 libilbc_decoder_deps="libilbc"
2334 libilbc_encoder_deps="libilbc"
2335 libkvazaar_encoder_deps="libkvazaar"
2336 libmp3lame_encoder_deps="libmp3lame"
2337 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2338 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2339 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2340 libopencore_amrnb_encoder_select="audio_frame_queue"
2341 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2342 libopenh264_decoder_deps="libopenh264"
2343 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2344 libopenh264_encoder_deps="libopenh264"
2345 libopenjpeg_decoder_deps="libopenjpeg"
2346 libopenjpeg_encoder_deps="libopenjpeg"
2347 libopus_decoder_deps="libopus"
2348 libopus_encoder_deps="libopus"
2349 libopus_encoder_select="audio_frame_queue"
2350 libschroedinger_decoder_deps="libschroedinger"
2351 libschroedinger_encoder_deps="libschroedinger"
2352 libspeex_decoder_deps="libspeex"
2353 libspeex_encoder_deps="libspeex"
2354 libspeex_encoder_select="audio_frame_queue"
2355 libtheora_encoder_deps="libtheora"
2356 libtwolame_encoder_deps="libtwolame"
2357 libvo_aacenc_encoder_deps="libvo_aacenc"
2358 libvo_aacenc_encoder_select="audio_frame_queue"
2359 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2360 libvorbis_encoder_deps="libvorbis"
2361 libvorbis_encoder_select="audio_frame_queue"
2362 libvpx_vp8_decoder_deps="libvpx"
2363 libvpx_vp8_encoder_deps="libvpx"
2364 libvpx_vp9_decoder_deps="libvpx"
2365 libvpx_vp9_encoder_deps="libvpx"
2366 libwavpack_encoder_deps="libwavpack"
2367 libwavpack_encoder_select="audio_frame_queue"
2368 libwebp_encoder_deps="libwebp"
2369 libx262_encoder_deps="libx262"
2370 libx264_encoder_deps="libx264"
2371 libx265_encoder_deps="libx265"
2372 libxavs_encoder_deps="libxavs"
2373 libxvid_encoder_deps="libxvid mkstemp"
2374
2375 # demuxers / muxers
2376 ac3_demuxer_select="ac3_parser"
2377 asf_demuxer_select="riffdec"
2378 asf_muxer_select="riffenc"
2379 asf_stream_muxer_select="asf_muxer"
2380 avi_demuxer_select="iso_media riffdec"
2381 avi_muxer_select="riffenc"
2382 caf_demuxer_select="iso_media riffdec"
2383 dash_muxer_select="mp4_muxer"
2384 dirac_demuxer_select="dirac_parser"
2385 dv_demuxer_select="dvprofile"
2386 dv_muxer_select="dvprofile"
2387 dxa_demuxer_select="riffdec"
2388 eac3_demuxer_select="ac3_parser"
2389 f4v_muxer_select="mov_muxer"
2390 flac_demuxer_select="flac_parser"
2391 hds_muxer_select="flv_muxer"
2392 hls_muxer_select="mpegts_muxer"
2393 ipod_muxer_select="mov_muxer"
2394 ismv_muxer_select="mov_muxer"
2395 matroska_audio_muxer_select="matroska_muxer"
2396 matroska_demuxer_select="iso_media riffdec"
2397 matroska_demuxer_suggest="bzlib lzo zlib"
2398 matroska_muxer_select="iso_media riffenc"
2399 mmf_muxer_select="riffenc"
2400 mov_demuxer_select="iso_media riffdec"
2401 mov_demuxer_suggest="zlib"
2402 mov_muxer_select="iso_media riffenc rtpenc_chain"
2403 mp3_demuxer_select="mpegaudio_parser"
2404 mp3_muxer_select="mpegaudioheader"
2405 mp4_muxer_select="mov_muxer"
2406 mpegts_demuxer_select="iso_media"
2407 mpegts_muxer_select="adts_muxer latm_muxer"
2408 mpegtsraw_demuxer_select="mpegts_demuxer"
2409 mxf_d10_muxer_select="mxf_muxer"
2410 nut_muxer_select="riffenc"
2411 nuv_demuxer_select="riffdec"
2412 oga_muxer_select="ogg_muxer"
2413 ogg_demuxer_select="dirac_parse"
2414 opus_muxer_select="ogg_muxer"
2415 psp_muxer_select="mov_muxer"
2416 rtp_demuxer_select="sdp_demuxer"
2417 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2418 rtsp_demuxer_select="http_protocol rtpdec"
2419 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2420 sap_demuxer_select="sdp_demuxer"
2421 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2422 sdp_demuxer_select="rtpdec"
2423 smoothstreaming_muxer_select="ismv_muxer"
2424 spdif_demuxer_select="adts_header"
2425 spdif_muxer_select="adts_header"
2426 spx_muxer_select="ogg_muxer"
2427 swf_demuxer_suggest="zlib"
2428 tak_demuxer_select="tak_parser"
2429 tg2_muxer_select="mov_muxer"
2430 tgp_muxer_select="mov_muxer"
2431 w64_demuxer_select="wav_demuxer"
2432 wav_demuxer_select="riffdec"
2433 wav_muxer_select="riffenc"
2434 webm_muxer_select="iso_media riffenc"
2435 wtv_demuxer_select="mpegts_demuxer riffdec"
2436 xmv_demuxer_select="riffdec"
2437 xwma_demuxer_select="riffdec"
2438
2439 # indevs
2440 alsa_indev_deps="alsa"
2441 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2442 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2443 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
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="sys_soundcard_h"
2450 pulse_indev_deps="libpulse"
2451 sndio_indev_deps="sndio"
2452 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2453 vfwcap_indev_deps="vfw32 vfwcap_defines"
2454 xcbgrab_indev_deps="libxcb libxcb_shape"
2455 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2456
2457 # protocols
2458 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2459 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2460 ffrtmpcrypt_protocol_select="tcp_protocol"
2461 ffrtmphttp_protocol_conflict="librtmp_protocol"
2462 ffrtmphttp_protocol_select="http_protocol"
2463 gopher_protocol_select="network"
2464 http_protocol_select="tcp_protocol"
2465 http_protocol_suggest="zlib"
2466 httpproxy_protocol_select="tcp_protocol"
2467 httpproxy_protocol_suggest="zlib"
2468 https_protocol_select="tls_protocol"
2469 https_protocol_suggest="zlib"
2470 icecast_protocol_select="http_protocol"
2471 librtmp_protocol_deps="librtmp"
2472 librtmpe_protocol_deps="librtmp"
2473 librtmps_protocol_deps="librtmp"
2474 librtmpt_protocol_deps="librtmp"
2475 librtmpte_protocol_deps="librtmp"
2476 mmsh_protocol_select="http_protocol"
2477 mmst_protocol_select="network"
2478 rtmp_protocol_conflict="librtmp_protocol"
2479 rtmp_protocol_select="tcp_protocol"
2480 rtmp_protocol_suggest="zlib"
2481 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2482 rtmpe_protocol_suggest="zlib"
2483 rtmps_protocol_conflict="librtmp_protocol"
2484 rtmps_protocol_select="tls_protocol"
2485 rtmps_protocol_suggest="zlib"
2486 rtmpt_protocol_select="ffrtmphttp_protocol"
2487 rtmpt_protocol_suggest="zlib"
2488 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2489 rtmpte_protocol_suggest="zlib"
2490 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2491 rtmpts_protocol_suggest="zlib"
2492 rtp_protocol_select="udp_protocol"
2493 sctp_protocol_deps="struct_sctp_event_subscribe"
2494 sctp_protocol_select="network"
2495 srtp_protocol_select="rtp_protocol srtp"
2496 tcp_protocol_select="network"
2497 tls_protocol_deps_any="gnutls openssl"
2498 tls_protocol_select="tcp_protocol"
2499 udp_protocol_select="network"
2500 unix_protocol_deps="sys_un_h"
2501 unix_protocol_select="network"
2502
2503 # filters
2504 asyncts_filter_deps="avresample"
2505 blackframe_filter_deps="gpl"
2506 boxblur_filter_deps="gpl"
2507 bs2b_filter_deps="libbs2b"
2508 cropdetect_filter_deps="gpl"
2509 deinterlace_qsv_filter_deps="libmfx"
2510 deinterlace_vaapi_filter_deps="vaapi"
2511 delogo_filter_deps="gpl"
2512 drawtext_filter_deps="libfreetype"
2513 drawtext_filter_suggest="libfontconfig"
2514 frei0r_filter_deps="frei0r libdl"
2515 frei0r_src_filter_deps="frei0r libdl"
2516 hdcd_filter_deps="libhdcd"
2517 hqdn3d_filter_deps="gpl"
2518 interlace_filter_deps="gpl"
2519 movie_filter_deps="avcodec avformat"
2520 ocv_filter_deps="libopencv"
2521 overlay_qsv_filter_deps="libmfx"
2522 overlay_qsv_filter_select="qsvvpp"
2523 resample_filter_deps="avresample"
2524 scale_filter_deps="swscale"
2525 scale_qsv_filter_deps="libmfx"
2526 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2527 vpp_qsv_filter_deps="libmfx"
2528 vpp_qsv_filter_select="qsvvpp"
2529
2530 # examples
2531 decode_audio_example_deps="avcodec avutil"
2532 decode_video_example_deps="avcodec avutil"
2533 encode_audio_example_deps="avcodec avutil"
2534 encode_video_example_deps="avcodec avutil"
2535 filter_audio_example_deps="avfilter avutil"
2536 metadata_example_deps="avformat avutil"
2537 output_example_deps="avcodec avformat avresample avutil swscale"
2538 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2539 transcode_aac_example_deps="avcodec avformat avresample"
2540
2541 # EXTRALIBS_LIST
2542 cpu_init_extralibs="pthreads_extralibs"
2543 cws2fws_extralibs="zlib_extralibs"
2544
2545 # libraries, in linking order
2546 avcodec_deps="avutil"
2547 avcodec_select="null_bsf"
2548 avdevice_deps="avformat avcodec avutil"
2549 avfilter_deps="avutil"
2550 avformat_deps="avcodec avutil"
2551 avformat_suggest="network"
2552 avresample_deps="avutil"
2553 swscale_deps="avutil"
2554
2555 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2556 avdevice_extralibs="libm_extralibs"
2557 avformat_extralibs="libm_extralibs"
2558 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2559 avresample_extralibs="libm_extralibs"
2560 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2561 swscale_extralibs="libm_extralibs"
2562
2563 # programs
2564 avconv_deps="avcodec avfilter avformat avresample swscale"
2565 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2566 fps_filter null_filter resample_filter scale_filter
2567 trim_filter"
2568 avconv_suggest="psapi shell32"
2569 avplay_deps="avcodec avfilter avformat avresample sdl"
2570 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2571 avplay_suggest="shell32"
2572 avprobe_deps="avcodec avformat"
2573 avprobe_suggest="shell32"
2574
2575 # documentation
2576 pod2man_deps="doc"
2577 texi2html_deps="doc"
2578
2579 # default parameters
2580
2581 logfile="avbuild/config.log"
2582
2583 # installation paths
2584 prefix_default="/usr/local"
2585 bindir_default='${prefix}/bin'
2586 datadir_default='${prefix}/share/avconv'
2587 docdir_default='${prefix}/share/doc/libav'
2588 incdir_default='${prefix}/include'
2589 libdir_default='${prefix}/lib'
2590 mandir_default='${prefix}/share/man'
2591 shlibdir_default="$libdir_default"
2592
2593 # toolchain
2594 ar_default="ar"
2595 cc_default="gcc"
2596 host_cc_default="gcc"
2597 x86asmexe_default="nasm"
2598 ln_s="ln -s -f"
2599 nm_default="nm -g"
2600 pkg_config_default=pkg-config
2601 ranlib="ranlib"
2602 strip="strip"
2603 version_script='--version-script'
2604
2605 # machine
2606 arch_default=$(uname -m)
2607 cpu="generic"
2608 intrinsics="none"
2609
2610 # OS
2611 target_os_default=$(tolower $(uname -s))
2612 host_os=$target_os_default
2613
2614 # configurable options
2615 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2616
2617 enable asm
2618 enable debug
2619 enable doc
2620 enable faan faandct faanidct
2621 enable optimizations
2622 enable safe_bitstream_reader
2623 enable static
2624 enable swscale_alpha
2625 enable valgrind_backtrace
2626
2627 # By default, enable only those hwaccels that have no external dependencies.
2628 enable d3d11va dxva2 vda vdpau
2629
2630 # internal components are enabled by default
2631 enable $EXTRALIBS_LIST
2632
2633 # Avoid external, non-system, libraries getting enabled by dependency resolution
2634 disable $EXTERNAL_LIBRARY_LIST
2635
2636 # build settings
2637 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2638 LIBPREF="lib"
2639 LIBSUF=".a"
2640 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2641 SLIBPREF="lib"
2642 SLIBSUF=".so"
2643 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2644 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2645 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2646 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2647 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2648 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2649 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2650
2651 asflags_filter=echo
2652 cflags_filter=echo
2653 ldflags_filter=echo
2654
2655 AS_C='-c'
2656 AS_O='-o $@'
2657 CC_C='-c'
2658 CC_E='-E -o $@'
2659 CC_O='-o $@'
2660 OBJCC_C='-c'
2661 OBJCC_E='-E -o $@'
2662 OBJCC_O='-o $@'
2663 X86ASM_O='-o $@'
2664 LD_O='-o $@'
2665 LD_LIB='-l%'
2666 LD_PATH='-L'
2667 HOSTCC_C='-c'
2668 HOSTCC_E='-E -o $@'
2669 HOSTCC_O='-o $@'
2670 HOSTLD_O='-o $@'
2671
2672 host_extralibs='-lm'
2673 host_cflags_filter=echo
2674 host_ldflags_filter=echo
2675
2676 target_path='$(CURDIR)'
2677
2678 # since the object filename is not given with the -MM flag, the compiler
2679 # is only able to print the basename, and we must add the path ourselves
2680 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2681 DEPFLAGS='-MM'
2682
2683 mkdir -p avbuild
2684
2685 # find source path
2686 if test -f configure; then
2687 source_path=.
2688 else
2689 source_path=$(cd $(dirname "$0"); pwd)
2690 echo "$source_path" | grep -q '[[:blank:]]' &&
2691 die "Out of tree builds are impossible with whitespace in source path."
2692 test -e "$source_path/config.h" &&
2693 die "Out of tree builds are impossible with config.h in source dir."
2694 fi
2695
2696 for v in "$@"; do
2697 r=${v#*=}
2698 l=${v%"$r"}
2699 r=$(sh_quote "$r")
2700 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2701 done
2702
2703 find_things(){
2704 thing=$1
2705 pattern=$2
2706 file=$source_path/$3
2707 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2708 }
2709
2710 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2711 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2712 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2713 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2714 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2715 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2716 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2717 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2718
2719 find_things_extern(){
2720 thing=$1
2721 pattern=$2
2722 file=$source_path/$3
2723 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2724 }
2725
2726 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2727 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2728
2729 AVCODEC_COMPONENTS_LIST="
2730 $BSF_LIST
2731 $DECODER_LIST
2732 $ENCODER_LIST
2733 $HWACCEL_LIST
2734 $PARSER_LIST
2735 "
2736
2737 AVDEVICE_COMPONENTS_LIST="
2738 $INDEV_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 for opt do
2784 optval="${opt#*=}"
2785 case "$opt" in
2786 --extra-ldflags=*)
2787 add_ldflags $optval
2788 ;;
2789 --extra-ldexeflags=*)
2790 add_ldexeflags $optval
2791 ;;
2792 --extra-ldsoflags=*)
2793 add_ldsoflags $optval
2794 ;;
2795 --extra-libs=*)
2796 add_extralibs $optval
2797 ;;
2798 --disable-devices)
2799 disable $INDEV_LIST
2800 ;;
2801 --enable-debug=*)
2802 debuglevel="$optval"
2803 ;;
2804 --disable-programs)
2805 disable $PROGRAM_LIST
2806 ;;
2807 --disable-everything)
2808 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2809 ;;
2810 --disable-all)
2811 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2812 disable $LIBRARY_LIST $PROGRAM_LIST doc
2813 ;;
2814 --enable-*=*|--disable-*=*)
2815 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2816 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2817 eval list=\$$(toupper $thing)_LIST
2818 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2819 $action $(filter "$name" $list)
2820 ;;
2821 --enable-yasm|--disable-yasm)
2822 warn "The ${opt} option is only provided for compatibility and will be\n"\
2823 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2824 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2825 ;;
2826 --enable-?*|--disable-?*)
2827 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2828 if is_in $option $COMPONENT_LIST; then
2829 test $action = disable && action=unset
2830 eval $action \$$(toupper ${option%s})_LIST
2831 elif is_in $option $CMDLINE_SELECT; then
2832 $action $option
2833 else
2834 die_unknown $opt
2835 fi
2836 ;;
2837 --list-*)
2838 NAME="${opt#--list-}"
2839 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2840 NAME=${NAME%s}
2841 eval show_list $NAME \$$(toupper $NAME)_LIST
2842 ;;
2843 --help|-h) show_help
2844 ;;
2845 --quiet|-q) quiet=yes
2846 ;;
2847 *)
2848 optname="${opt%%=*}"
2849 optname="${optname#--}"
2850 optname=$(echo "$optname" | sed 's/-/_/g')
2851 if is_in $optname $CMDLINE_SET; then
2852 eval $optname='$optval'
2853 elif is_in $optname $CMDLINE_APPEND; then
2854 append $optname "$optval"
2855 else
2856 die_unknown $opt
2857 fi
2858 ;;
2859 esac
2860 done
2861
2862 for e in $env; do
2863 eval "export $e"
2864 done
2865
2866 disabled logging && logfile=/dev/null
2867
2868 # we need to build at least one lib type
2869 if ! enabled_any static shared; then
2870 cat <<EOF
2871 At least one library type must be built.
2872 Specify --enable-static to build the static libraries or --enable-shared to
2873 build the shared libraries as well. To only build the shared libraries specify
2874 --disable-static in addition to --enable-shared.
2875 EOF
2876 exit 1
2877 fi
2878
2879 # Die early if licensing-related configure options are incompatible.
2880 die_license_disabled() {
2881 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2882 }
2883
2884 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2885 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2886 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2887
2888 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2889
2890 enabled_all gnutls openssl &&
2891 die "GnuTLS and OpenSSL must not be enabled at the same time."
2892
2893 # Disable all the library-specific components if the library itself
2894 # is disabled, see AVCODEC_LIST and following _LIST variables.
2895
2896 disable_components(){
2897 disabled ${1} && disable $(
2898 eval components="\$$(toupper ${1})_COMPONENTS"
2899 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2900 )
2901 }
2902
2903 map 'disable_components $v' $LIBRARY_LIST
2904
2905 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2906 set >> $logfile
2907
2908 case "$toolchain" in
2909 *-asan)
2910 cc_default="${toolchain%-asan}"
2911 add_cflags -fsanitize=address
2912 add_ldflags -fsanitize=address
2913 ;;
2914 *-msan)
2915 cc_default="${toolchain%-msan}"
2916 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2917 add_ldflags -fsanitize=memory
2918 ;;
2919 *-tsan)
2920 cc_default="${toolchain%-tsan}"
2921 add_cflags -fsanitize=thread -fPIE
2922 add_ldflags -fsanitize=thread -pie
2923 case "$toolchain" in
2924 gcc-tsan)
2925 add_cflags -fPIC
2926 add_ldflags -fPIC
2927 ;;
2928 esac
2929 ;;
2930 *-usan)
2931 cc_default="${toolchain%-usan}"
2932 add_cflags -fsanitize=undefined
2933 add_ldflags -fsanitize=undefined
2934 case "$toolchain" in
2935 clang-usan)
2936 add_cflags -O1
2937 ;;
2938 esac
2939 ;;
2940 valgrind-*)
2941 target_exec_default="valgrind"
2942 case "$toolchain" in
2943 valgrind-massif)
2944 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2945 ;;
2946 valgrind-memcheck)
2947 target_exec_args="--track-origins=yes --leak-check=full"
2948 ;;
2949 esac
2950 ;;
2951 msvc)
2952 # Check whether the current MSVC version needs the C99 converter.
2953 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2954 # support enough of C99 to build libav. Default to the new
2955 # behaviour if the regexp was unable to match anything, since this
2956 # successfully parses the version number of existing supported
2957 # versions that require the converter (MSVC 2010 and 2012).
2958 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2959 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2960 cc_default="cl"
2961 else
2962 cc_default="c99wrap cl"
2963 fi
2964 ld_default="$source_path/compat/windows/mslink"
2965 nm_default="dumpbin -symbols"
2966 ar_default="lib"
2967 case "$arch" in
2968 aarch64|arm64)
2969 as_default="armasm64"
2970 ;;
2971 arm*)
2972 as_default="armasm"
2973 ;;
2974 esac
2975 target_os_default="win32"
2976 # Use a relative path for TMPDIR. This makes sure all the
2977 # ffconf temp files are written with a relative path, avoiding
2978 # issues with msys/win32 path conversion for MSVC parameters
2979 # such as -Fo<file> or -out:<file>.
2980 TMPDIR=.
2981 ;;
2982 icl)
2983 cc_default="icl"
2984 ld_default="xilink"
2985 nm_default="dumpbin -symbols"
2986 ar_default="xilib"
2987 target_os_default="win32"
2988 TMPDIR=.
2989 ;;
2990 gcov)
2991 add_cflags -fprofile-arcs -ftest-coverage
2992 add_ldflags -fprofile-arcs -ftest-coverage
2993 ;;
2994 llvm-cov)
2995 add_cflags -fprofile-arcs -ftest-coverage
2996 add_ldflags --coverage
2997 ;;
2998 hardened)
2999 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3000 add_cflags -fno-strict-overflow -fstack-protector-all
3001 add_ldflags -Wl,-z,relro -Wl,-z,now
3002 ;;
3003 ?*)
3004 die "Unknown toolchain $toolchain"
3005 ;;
3006 esac
3007
3008 test -n "$cross_prefix" && enable cross_compile
3009
3010 if enabled cross_compile; then
3011 test -n "$arch" && test -n "$target_os" ||
3012 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3013 fi
3014
3015 ar_default="${cross_prefix}${ar_default}"
3016 cc_default="${cross_prefix}${cc_default}"
3017 objcc_default="${cross_prefix}${objcc_default}"
3018 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3019 nm_default="${cross_prefix}${nm_default}"
3020 pkg_config_default="${cross_prefix}${pkg_config_default}"
3021 ranlib="${cross_prefix}${ranlib}"
3022 strip="${cross_prefix}${strip}"
3023
3024 sysinclude_default="${sysroot}/usr/include"
3025
3026 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3027 enabled cross_compile || host_cc_default=$cc
3028 set_default host_cc
3029
3030 if ! $pkg_config --version >/dev/null 2>&1; then
3031 warn "$pkg_config not found, library detection may fail."
3032 pkg_config=false
3033 fi
3034
3035 exesuf() {
3036 case $1 in
3037 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3038 esac
3039 }
3040
3041 EXESUF=$(exesuf $target_os)
3042 HOSTEXESUF=$(exesuf $host_os)
3043
3044 # set temporary file name
3045 : ${TMPDIR:=$TEMPDIR}
3046 : ${TMPDIR:=$TMP}
3047 : ${TMPDIR:=/tmp}
3048
3049 if ! check_cmd mktemp -u XXXXXX; then
3050 # simple replacement for missing mktemp
3051 # NOT SAFE FOR GENERAL USE
3052 mktemp(){
3053 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3054 echo "$tmpname"
3055 mkdir "$tmpname"
3056 }
3057 fi
3058
3059 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3060 die "Unable to create temporary directory in $TMPDIR."
3061
3062 tmpfile(){
3063 tmp="${AVTMPDIR}/test"$2
3064 (set -C; exec > $tmp) 2> /dev/null ||
3065 die "Unable to create temporary file in $AVTMPDIR."
3066 eval $1=$tmp
3067 }
3068
3069 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3070 trap 'exit 2' INT
3071
3072 tmpfile TMPASM .asm
3073 tmpfile TMPC .c
3074 tmpfile TMPE $EXESUF
3075 tmpfile TMPH .h
3076 tmpfile TMPO .o
3077 tmpfile TMPS .S
3078 tmpfile TMPSH .sh
3079 tmpfile TMPV .ver
3080
3081 unset -f mktemp
3082
3083 chmod +x $TMPE
3084
3085 # make sure we can execute files in $TMPDIR
3086 cat > $TMPSH 2>> $logfile <<EOF
3087 #! /bin/sh
3088 EOF
3089 chmod +x $TMPSH >> $logfile 2>&1
3090 if ! $TMPSH >> $logfile 2>&1; then
3091 cat <<EOF
3092 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3093 variable to another directory and make sure that it is not mounted noexec.
3094 EOF
3095 die "Sanity test failed."
3096 fi
3097
3098 armasm_flags(){
3099 for flag; do
3100 case $flag in
3101 # Filter out MSVC cl.exe options from cflags that shouldn't
3102 # be passed to gas-preprocessor
3103 -M[TD]*) ;;
3104 *) echo $flag ;;
3105 esac
3106 done
3107 }
3108
3109 cparser_flags(){
3110 for flag; do
3111 case $flag in
3112 -Wno-switch) echo -Wno-switch-enum ;;
3113 -Wno-format-zero-length) ;;
3114 -Wdisabled-optimization) ;;
3115 -Wno-pointer-sign) echo -Wno-other ;;
3116 *) echo $flag ;;
3117 esac
3118 done
3119 }
3120
3121 msvc_common_flags(){
3122 for flag; do
3123 case $flag in
3124 # In addition to specifying certain flags under the compiler
3125 # specific filters, they must be specified here as well or else the
3126 # generic catch all at the bottom will print the original flag.
3127 -Wall) ;;
3128 -Wextra) ;;
3129 -std=c99) ;;
3130 # Common flags
3131 -fomit-frame-pointer) ;;
3132 -g) echo -Z7 ;;
3133 -fno-math-errno) ;;
3134 -fno-common) ;;
3135 -fno-signed-zeros) ;;
3136 -fPIC) ;;
3137 -mthumb) ;;
3138 -march=*) ;;
3139 -lz) echo zlib.lib ;;
3140 -lx264) echo libx264.lib ;;
3141 -l*) echo ${flag#-l}.lib ;;
3142 -L*) echo -libpath:${flag#-L} ;;
3143 *) echo $flag ;;
3144 esac
3145 done
3146 }
3147
3148 msvc_flags(){
3149 msvc_common_flags "$@"
3150 for flag; do
3151 case $flag in
3152 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3153 -wd4554 ;;
3154 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3155 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3156 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3157 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3158 esac
3159 done
3160 }
3161
3162 icl_flags(){
3163 msvc_common_flags "$@"
3164 for flag; do
3165 case $flag in
3166 # Despite what Intel's documentation says -Wall, which is supported
3167 # on Windows, does enable remarks so disable them here.
3168 -Wall) echo $flag -Qdiag-disable:remark ;;
3169 -std=c99) echo -Qstd=c99 ;;
3170 esac
3171 done
3172 }
3173
3174 pgi_flags(){
3175 for flag; do
3176 case $flag in
3177 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3178 -fomit-frame-pointer) echo -Mnoframe ;;
3179 -g) echo -gopt ;;
3180 *) echo $flag ;;
3181 esac
3182 done
3183 }
3184
3185 suncc_flags(){
3186 for flag; do
3187 case $flag in
3188 -march=*|-mcpu=*)
3189 case "${flag#*=}" in
3190 native) echo -xtarget=native ;;
3191 v9|niagara) echo -xarch=sparc ;;
3192 ultrasparc) echo -xarch=sparcvis ;;
3193 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3194 i586|pentium) echo -xchip=pentium ;;
3195 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3196 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3197 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3198 pentium4*) echo -xtarget=pentium4 ;;
3199 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3200 *-sse3) echo -xarch=sse3 ;;
3201 core2) echo -xarch=ssse3 -xchip=core2 ;;
3202 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3203 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3204 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3205 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3206 k8|opteron|athlon64|athlon-fx)
3207 echo -xarch=sse2a ;;
3208 athlon*) echo -xarch=pentium_proa ;;
3209 esac
3210 ;;
3211 -std=c99) echo -xc99 ;;
3212 -fomit-frame-pointer) echo -xregs=frameptr ;;
3213 -fPIC) echo -KPIC -xcode=pic32 ;;
3214 -W*,*) echo $flag ;;
3215 -f*-*|-W*|-mimpure-text) ;;
3216 -shared) echo -G ;;
3217 *) echo $flag ;;
3218 esac
3219 done
3220 }
3221
3222 tms470_flags(){
3223 for flag; do
3224 case $flag in
3225 -march=*|-mcpu=*)
3226 case "${flag#*=}" in
3227 armv7-a|cortex-a*) echo -mv=7a8 ;;
3228 armv7-r|cortex-r*) echo -mv=7r4 ;;
3229 armv7-m|cortex-m*) echo -mv=7m3 ;;
3230 armv6*|arm11*) echo -mv=6 ;;
3231 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3232 echo -mv=5e ;;
3233 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3234 esac
3235 ;;
3236 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3237 -mfpu=vfp) echo --float_support=vfpv2 ;;
3238 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3239 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3240 -msoft-float) echo --float_support=vfplib ;;
3241 -O[0-3]|-mf=*) echo $flag ;;
3242 -g) echo -g -mn ;;
3243 -pds=*) echo $flag ;;
3244 -D*|-I*) echo $flag ;;
3245 --gcc|--abi=*) echo $flag ;;
3246 -me) echo $flag ;;
3247 esac
3248 done
3249 }
3250
3251 probe_cc(){
3252 pfx=$1
3253 _cc=$2
3254
3255 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3256 unset _ld_o _ldflags _ld_lib _ld_path
3257 unset _depflags _DEPCMD _DEPFLAGS
3258 _flags_filter=echo
3259
3260 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3261 _type=llvm_gcc
3262 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3263 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3264 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3265 _cflags_speed='-O3'
3266 _cflags_size='-Os'
3267 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3268 _type=gcc
3269 gcc_version=$($_cc --version | head -n1)
3270 gcc_basever=$($_cc -dumpversion)
3271 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3272 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3273 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3274 if ! $_cc -dumpversion | grep -q '^2\.'; then
3275 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3276 fi
3277 _cflags_speed='-O3'
3278 _cflags_size='-Os'
3279 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3280 _type=icc
3281 _ident=$($_cc --version | head -n1)
3282 _depflags='-MMD'
3283 _cflags_speed='-O3'
3284 _cflags_size='-Os'
3285 _cflags_noopt='-O1'
3286 elif $_cc -v 2>&1 | grep -q xlc; then
3287 _type=xlc
3288 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3289 _cflags_speed='-O5'
3290 _cflags_size='-O5 -qcompact'
3291 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3292 test -d "$sysroot" || die "No valid sysroot specified."
3293 _type=armcc
3294 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3295 armcc_conf="$PWD/armcc.conf"
3296 $_cc --arm_linux_configure \
3297 --arm_linux_config_file="$armcc_conf" \
3298 --configure_sysroot="$sysroot" \
3299 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3300 die "Error creating armcc configuration file."
3301 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3302 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3303 as_default="${cross_prefix}gcc"
3304 _depflags='-MMD'
3305 _cflags_speed='-O3'
3306 _cflags_size='-Os'
3307 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3308 _type=tms470
3309 _ident=$($_cc -version | head -n1 | tr -s ' ')
3310 _flags='--gcc --abi=eabi -me'
3311 _cc_e='-ppl -fe=$@'
3312 _cc_o='-fe=$@'
3313 _depflags='-ppa -ppd=$(@:.o=.d)'
3314 _cflags_speed='-O3 -mf=5'
3315 _cflags_size='-O3 -mf=2'
3316 _flags_filter=tms470_flags
3317 elif $_cc -v 2>&1 | grep -q clang; then
3318 _type=clang
3319 _ident=$($_cc --version 2>/dev/null | head -n1)
3320 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3321 _cflags_speed='-O3'
3322 _cflags_size='-Os'
3323 elif $_cc -V 2>&1 | grep -q Sun; then
3324 _type=suncc
3325 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3326 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3327 _DEPFLAGS='-xM1 -xc99'
3328 _ldflags='-std=c99'
3329 _cflags_speed='-O5'
3330 _cflags_size='-O5 -xspace'
3331 _flags_filter=suncc_flags
3332 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3333 _type=pathscale
3334 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3335 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3336 _cflags_speed='-O2'
3337 _cflags_size='-Os'
3338 _flags_filter='filter_out -Wdisabled-optimization'
3339 elif $_cc -v 2>&1 | grep -q Open64; then
3340 _type=open64
3341 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3342 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3343 _cflags_speed='-O2'
3344 _cflags_size='-Os'
3345 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3346 elif $_cc -V 2>&1 | grep -q Portland; then
3347 _type=pgi
3348 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3349 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3350 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3351 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3352 _cflags_noopt="-O1"
3353 _flags_filter=pgi_flags
3354 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3355 _type=armasm
3356 _ident=$($_cc | head -n1)
3357 # 4509: "This form of conditional instruction is deprecated"
3358 _flags="-nologo -ignore 4509"
3359 _flags_filter=armasm_flags
3360 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3361 _type=msvc
3362 _ident=$($_cc 2>&1 | head -n1)
3363 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3364 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3365 _cflags_speed="-O2"
3366 _cflags_size="-O1"
3367 _cflags_noopt="-O1"
3368 if $_cc -nologo- 2>&1 | grep -q Linker; then
3369 _ld_o='-out:$@'
3370 else
3371 _ld_o='-Fe$@'
3372 fi
3373 _cc_o='-Fo$@'
3374 _cc_e='-P -Fi$@'
3375 _flags_filter=msvc_flags
3376 _ld_lib='lib%.a'
3377 _ld_path='-libpath:'
3378 _flags='-nologo'
3379 elif $_cc 2>&1 | grep -q Intel; then
3380 _type=icl
3381 _ident=$($_cc 2>&1 | head -n1)
3382 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3383 # Not only is O3 broken on 13.x+ but it is slower on all previous
3384 # versions (tested) as well.
3385 _cflags_speed="-O2"
3386 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3387 if $_cc 2>&1 | grep -q Linker; then
3388 _ld_o='-out:$@'
3389 else
3390 _ld_o='-Fe$@'
3391 fi
3392 _cc_o='-Fo$@'
3393 _cc_e='-P'
3394 _flags_filter=icl_flags
3395 _ld_lib='lib%.a'
3396 _ld_path='-libpath:'
3397 # -Qdiag-error to make icl error when seeing certain unknown arguments
3398 _flags='-nologo -Qdiag-error:4044,10157'
3399 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3400 # with MSVC which enables it by default.
3401 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3402 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3403 # lld can emulate multiple different linkers; in ms link.exe mode,
3404 # the -? parameter gives the help output which contains an identifyable
3405 # string, while it gives an error in other modes.
3406 _type=lld-link
3407 # The link.exe mode doesn't have a switch for getting the version,
3408 # but we can force it back to gnu mode and get the version from there.
3409 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3410 _ld_o='-out:$@'
3411 _flags_filter=msvc_flags
3412 _ld_lib='lib%.a'
3413 _ld_path='-libpath:'
3414 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3415 _type=cparser
3416 _ident=$($_cc --version | head -n1)
3417 _depflags='-MMD'
3418 _cflags_speed='-O4'
3419 _cflags_size='-O2'
3420 _flags_filter=cparser_flags
3421 fi
3422
3423 eval ${pfx}_type=\$_type
3424 eval ${pfx}_ident=\$_ident
3425 }
3426
3427 set_ccvars(){
3428 eval ${1}_C=\${_cc_c-\${${1}_C}}
3429 eval ${1}_E=\${_cc_e-\${${1}_E}}
3430 eval ${1}_O=\${_cc_o-\${${1}_O}}
3431
3432 if [ -n "$_depflags" ]; then
3433 eval ${1}_DEPFLAGS=\$_depflags
3434 else
3435 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3436 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3437 eval DEP${1}FLAGS=\$_flags
3438 fi
3439 }
3440
3441 probe_cc cc "$cc"
3442 cflags_filter=$_flags_filter
3443 cflags_speed=$_cflags_speed
3444 cflags_size=$_cflags_size
3445 cflags_noopt=$_cflags_noopt
3446 add_cflags $_flags $_cflags
3447 cc_ldflags=$_ldflags
3448 set_ccvars CC
3449
3450 probe_cc hostcc "$host_cc"
3451 host_cflags_filter=$_flags_filter
3452 host_cflags_speed=$_cflags_speed
3453 add_host_cflags $_flags $_cflags
3454 set_ccvars HOSTCC
3455
3456 test -n "$cc_type" && enable $cc_type ||
3457 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3458
3459 : ${as_default:=$cc}
3460 : ${objcc_default:=$cc}
3461 : ${dep_cc_default:=$cc}
3462 : ${ld_default:=$cc}
3463 : ${host_ld_default:=$host_cc}
3464 set_default ar as objcc dep_cc ld host_ld
3465
3466 probe_cc as "$as"
3467 asflags_filter=$_flags_filter
3468 add_asflags $_flags $_cflags
3469 set_ccvars AS
3470
3471 probe_cc objcc "$objcc"
3472 objcflags_filter=$_flags_filter
3473 add_objcflags $_flags $_cflags
3474 set_ccvars OBJC
3475
3476 probe_cc ld "$ld"
3477 ldflags_filter=$_flags_filter
3478 add_ldflags $_flags $_ldflags
3479 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3480 LD_O=${_ld_o-$LD_O}
3481 LD_LIB=${_ld_lib-$LD_LIB}
3482 LD_PATH=${_ld_path-$LD_PATH}
3483
3484 probe_cc hostld "$host_ld"
3485 host_ldflags_filter=$_flags_filter
3486 add_host_ldflags $_flags $_ldflags
3487 HOSTLD_O=${_ld_o-$HOSTLD_O}
3488
3489 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3490 probe_cc depcc "$dep_cc"
3491 CCDEP=${_DEPCMD:-$DEPCMD}
3492 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3493 DEPCCFLAGS=$_flags
3494 fi
3495
3496 if $ar 2>&1 | grep -q Microsoft; then
3497 arflags="-nologo"
3498 ar_o='-out:$@'
3499 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3500 arflags="rq"
3501 ar_o='$@'
3502 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3503 arflags='-Xany -r -c'
3504 ar_o='$@'
3505 else
3506 arflags="rc"
3507 ar_o='$@'
3508 fi
3509
3510 add_cflags $extra_cflags
3511 add_objcflags $extra_objcflags
3512 add_asflags $extra_cflags
3513
3514 if test -n "$sysroot"; then
3515 case "$cc_type" in
3516 gcc|llvm_gcc|clang)
3517 add_cppflags --sysroot="$sysroot"
3518 add_ldflags --sysroot="$sysroot"
3519 ;;
3520 tms470)
3521 add_cppflags -I"$sysinclude"
3522 add_ldflags --sysroot="$sysroot"
3523 ;;
3524 esac
3525 fi
3526
3527 if test "$cpu" = host; then
3528 enabled cross_compile &&
3529 die "--cpu=host makes no sense when cross-compiling."
3530
3531 case "$cc_type" in
3532 gcc|llvm_gcc)
3533 check_native(){
3534 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3535 sed -n "/cc1.*$1=/{
3536 s/.*$1=\\([^ ]*\\).*/\\1/
3537 p
3538 q
3539 }" $TMPE
3540 }
3541 cpu=$(check_native -march || check_native -mcpu)
3542 ;;
3543 esac
3544
3545 test "${cpu:-host}" = host &&
3546 die "--cpu=host not supported with compiler $cc"
3547 fi
3548
3549 # Deal with common $arch aliases
3550 case "$arch" in
3551 aarch64|arm64)
3552 arch="aarch64"
3553 ;;
3554 arm*)
3555 arch="arm"
3556 ;;
3557 mips*|IP*)
3558 case "$arch" in
3559 *el)
3560 add_cppflags -EL
3561 add_ldflags -EL
3562 ;;
3563 *eb)
3564 add_cppflags -EB
3565 add_ldflags -EB
3566 ;;
3567 esac
3568 arch="mips"
3569 ;;
3570 parisc*|hppa*)
3571 arch="parisc"
3572 ;;
3573 "Power Macintosh"|ppc*|powerpc*)
3574 arch="ppc"
3575 ;;
3576 s390|s390x)
3577 arch="s390"
3578 ;;
3579 sh4|sh)
3580 arch="sh4"
3581 ;;
3582 sun4u|sparc*)
3583 arch="sparc"
3584 ;;
3585 tilegx|tile-gx)
3586 arch="tilegx"
3587 ;;
3588 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3589 arch="x86"
3590 ;;
3591 esac
3592
3593 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3594 enable $arch
3595
3596 # Add processor-specific flags
3597 if enabled aarch64; then
3598
3599 case $cpu in
3600 armv*)
3601 cpuflags="-march=$cpu"
3602 ;;
3603 *)
3604 cpuflags="-mcpu=$cpu"
3605 ;;
3606 esac
3607
3608 elif enabled alpha; then
3609
3610 cpuflags="-mcpu=$cpu"
3611
3612 elif enabled arm; then
3613
3614 check_arm_arch() {
3615 check_cpp_condition stddef.h \
3616 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3617 $cpuflags
3618 }
3619
3620 probe_arm_arch() {
3621 if check_arm_arch 4; then echo armv4
3622 elif check_arm_arch 4T; then echo armv4t
3623 elif check_arm_arch 5; then echo armv5
3624 elif check_arm_arch 5E; then echo armv5e
3625 elif check_arm_arch 5T; then echo armv5t
3626 elif check_arm_arch 5TE; then echo armv5te
3627 elif check_arm_arch 5TEJ; then echo armv5te
3628 elif check_arm_arch 6; then echo armv6
3629 elif check_arm_arch 6J; then echo armv6j
3630 elif check_arm_arch 6K; then echo armv6k
3631 elif check_arm_arch 6Z; then echo armv6z
3632 elif check_arm_arch 6ZK; then echo armv6zk
3633 elif check_arm_arch 6T2; then echo armv6t2
3634 elif check_arm_arch 7; then echo armv7
3635 elif check_arm_arch 7A 7_A; then echo armv7-a
3636 elif check_arm_arch 7S; then echo armv7-a
3637 elif check_arm_arch 7R 7_R; then echo armv7-r
3638 elif check_arm_arch 7M 7_M; then echo armv7-m
3639 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3640 elif check_arm_arch 8A 8_A; then echo armv8-a
3641 fi
3642 }
3643
3644 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3645
3646 case $cpu in
3647 armv*)
3648 cpuflags="-march=$cpu"
3649 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3650 ;;
3651 *)
3652 cpuflags="-mcpu=$cpu"
3653 case $cpu in
3654 cortex-a*) subarch=armv7a ;;
3655 cortex-r*) subarch=armv7r ;;
3656 cortex-m*) enable thumb; subarch=armv7m ;;
3657 arm11*) subarch=armv6 ;;
3658 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3659 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3660 *) subarch=$(probe_arm_arch) ;;
3661 esac
3662 ;;
3663 esac
3664
3665 case "$subarch" in
3666 armv5t*) enable fast_clz ;;
3667 armv[6-8]*) enable fast_clz fast_unaligned ;;
3668 esac
3669
3670 elif enabled avr32; then
3671
3672 case $cpu in
3673 ap7[02]0[0-2])
3674 subarch="avr32_ap"
3675 cpuflags="-mpart=$cpu"
3676 ;;
3677 ap)
3678 subarch="avr32_ap"
3679 cpuflags="-march=$cpu"
3680 ;;
3681 uc3[ab]*)
3682 subarch="avr32_uc"
3683 cpuflags="-mcpu=$cpu"
3684 ;;
3685 uc)
3686 subarch="avr32_uc"
3687 cpuflags="-march=$cpu"
3688 ;;
3689 esac
3690
3691 elif enabled bfin; then
3692
3693 cpuflags="-mcpu=$cpu"
3694
3695 elif enabled mips; then
3696
3697 cpuflags="-march=$cpu"
3698
3699 elif enabled ppc; then
3700
3701 disable ldbrx
3702
3703 case $(tolower $cpu) in
3704 601|ppc601|powerpc601)
3705 cpuflags="-mcpu=601"
3706 disable altivec
3707 ;;
3708 603*|ppc603*|powerpc603*)
3709 cpuflags="-mcpu=603"
3710 disable altivec
3711 ;;
3712 604*|ppc604*|powerpc604*)
3713 cpuflags="-mcpu=604"
3714 disable altivec
3715 ;;
3716 g3|75*|ppc75*|powerpc75*)
3717 cpuflags="-mcpu=750"
3718 disable altivec
3719 ;;
3720 g4|745*|ppc745*|powerpc745*)
3721 cpuflags="-mcpu=7450"
3722 disable vsx
3723 ;;
3724 74*|ppc74*|powerpc74*)
3725 cpuflags="-mcpu=7400"
3726 disable vsx
3727 ;;
3728 g5|970|ppc970|powerpc970)
3729 cpuflags="-mcpu=970"
3730 disable vsx
3731 ;;
3732 power[3-6]*)
3733 cpuflags="-mcpu=$cpu"
3734 disable vsx
3735 ;;
3736 power[7-8]*)
3737 cpuflags="-mcpu=$cpu"
3738 enable ldbrx
3739 ;;
3740 cell)
3741 cpuflags="-mcpu=cell"
3742 enable ldbrx
3743 disable vsx
3744 ;;
3745 e500mc)
3746 cpuflags="-mcpu=e500mc"
3747 disable altivec
3748 ;;
3749 e500v2)
3750 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3751 disable altivec
3752 disable dcbzl
3753 ;;
3754 e500)
3755 cpuflags="-mcpu=8540 -mhard-float"
3756 disable altivec
3757 disable dcbzl
3758 ;;
3759 esac
3760
3761 elif enabled sparc; then
3762
3763 case $cpu in
3764 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3765 cpuflags="-mcpu=$cpu"
3766 ;;
3767 ultrasparc*|niagara[234])
3768 cpuflags="-mcpu=$cpu"
3769 ;;
3770 esac
3771
3772 elif enabled x86; then
3773
3774 case $cpu in
3775 i[345]86|pentium)
3776 cpuflags="-march=$cpu"
3777 disable i686
3778 disable mmx
3779 ;;
3780 # targets that do NOT support nopl and conditional mov (cmov)
3781 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3782 cpuflags="-march=$cpu"
3783 disable i686
3784 ;;
3785 # targets that do support nopl and conditional mov (cmov)
3786 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3787 cpuflags="-march=$cpu"
3788 enable i686
3789 enable fast_cmov
3790 ;;
3791 # targets that do support conditional mov but on which it's slow
3792 pentium4|pentium4m|prescott|nocona)
3793 cpuflags="-march=$cpu"
3794 enable i686
3795 disable fast_cmov
3796 ;;
3797 esac
3798
3799 fi
3800
3801 if [ "$cpu" != generic ]; then
3802 add_cflags $cpuflags
3803 add_asflags $cpuflags
3804 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3805 fi
3806
3807 # compiler sanity check
3808 check_exec <<EOF
3809 int main(void){ return 0; }
3810 EOF
3811 if test "$?" != 0; then
3812 echo "$cc is unable to create an executable file."
3813 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3814 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3815 echo "Only do this if you know what cross compiling means."
3816 fi
3817 die "C compiler test failed."
3818 fi
3819
3820 add_cppflags -D_ISOC99_SOURCE
3821
3822 # some compilers silently accept -std=c11, so we also need to check that the
3823 # version macro is defined properly
3824 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3825 add_cflags -std=c11 ||
3826 check_cflags -std=c99
3827
3828 check_cppflags -D_FILE_OFFSET_BITS=64
3829 check_cppflags -D_LARGEFILE_SOURCE
3830
3831 add_host_cppflags -D_ISOC99_SOURCE
3832 check_host_cflags -std=c99
3833 check_host_cflags -Wall
3834 check_host_cflags $host_cflags_speed
3835
3836 check_64bit(){
3837 arch32=$1
3838 arch64=$2
3839 expr=$3
3840 check_code cc "" "int test[2*($expr) - 1]" &&
3841 subarch=$arch64 || subarch=$arch32
3842 }
3843
3844 case "$arch" in
3845 aarch64|alpha|ia64)
3846 spic=$shared
3847 ;;
3848 mips)
3849 check_64bit mips mips64 '_MIPS_SIM > 1'
3850 spic=$shared
3851 ;;
3852 parisc)
3853 check_64bit parisc parisc64 'sizeof(void *) > 4'
3854 spic=$shared
3855 ;;
3856 ppc)
3857 check_64bit ppc ppc64 'sizeof(void *) > 4'
3858 spic=$shared
3859 ;;
3860 s390)
3861 check_64bit s390 s390x 'sizeof(void *) > 4'
3862 spic=$shared
3863 ;;
3864 sparc)
3865 check_64bit sparc sparc64 'sizeof(void *) > 4'
3866 spic=$shared
3867 ;;
3868 x86)
3869 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3870 if test "$subarch" = "x86_64"; then
3871 spic=$shared
3872 fi
3873 ;;
3874 esac
3875
3876 enable $subarch
3877 enabled spic && enable_weak pic
3878
3879 enabled x86_64 && objformat=elf64 || objformat="elf32"
3880
3881 # OS specific
3882 case $target_os in
3883 aix)
3884 SHFLAGS=-shared
3885 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3886 enabled shared && add_ldflags -Wl,-brtl
3887 ;;
3888 android)
3889 disable symver
3890 enable section_data_rel_ro
3891 SLIB_INSTALL_NAME='$(SLIBNAME)'
3892 SLIB_INSTALL_LINKS=
3893 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3894 ;;
3895 haiku)
3896 prefix_default="/boot/common"
3897 network_extralibs="-lnetwork"
3898 host_extralibs=
3899 ;;
3900 sunos)
3901 SHFLAGS='-shared -Wl,-h,$$(@F)'
3902 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3903 network_extralibs="-lsocket -lnsl"
3904 # When using suncc to build, the Solaris linker will mark
3905 # an executable with each instruction set encountered by
3906 # the Solaris assembler. As our libraries contain their own
3907 # guards for processor-specific code, instead suppress
3908 # generation of the HWCAPS ELF section on Solaris x86 only.
3909 enabled_all suncc x86 &&
3910 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3911 add_ldflags -Wl,-M,mapfile
3912 nm_default='nm -P -g'
3913 version_script='-M'
3914 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3915 ;;
3916 netbsd)
3917 disable symver
3918 oss_indev_extralibs="-lossaudio"
3919 ;;
3920 openbsd|bitrig)
3921 disable symver
3922 SHFLAGS='-shared'
3923 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3924 SLIB_INSTALL_LINKS=
3925 oss_indev_extralibs="-lossaudio"
3926 ;;
3927 dragonfly)
3928 disable symver
3929 ;;
3930 freebsd)
3931 ;;
3932 bsd/os)
3933 add_extralibs -lpoll -lgnugetopt
3934 ;;
3935 darwin)
3936 enabled ppc && add_asflags -force_cpusubtype_ALL
3937 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3938 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3939 add_ldflags -Wl,-dynamic,-search_paths_first
3940 check_cflags -Werror=partial-availability
3941 SLIBSUF=".dylib"
3942 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3943 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3944 enabled x86_64 && objformat="macho64" || objformat="macho32"
3945 enabled_any pic shared ||
3946 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3947 check_header dispatch/dispatch.h &&
3948 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3949 if test -n "$sysroot"; then
3950 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3951 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3952 fi
3953 ;;
3954 msys*)
3955 die "Native MSYS builds are discouraged, please use the MINGW environment."
3956 ;;
3957 mingw32*|mingw64*)
3958 target_os=mingw32
3959 LIBTARGET=i386
3960 if enabled x86_64; then
3961 LIBTARGET="i386:x86-64"
3962 fi
3963 if enabled shared; then
3964 # Cannot build both shared and static libs when using dllexport.
3965 disable static
3966 fi
3967 check_ldflags -Wl,--nxcompat
3968 check_ldflags -Wl,--dynamicbase
3969 shlibdir_default="$bindir_default"
3970 SLIBPREF=""
3971 SLIBSUF=".dll"
3972 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3973 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3974 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3975 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3976 SLIB_INSTALL_LINKS=
3977 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3978 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3979 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3980 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3981 enabled x86_64 && objformat="win64" || objformat="win32"
3982 dlltool="${cross_prefix}dlltool"
3983 ranlib=:
3984 enable dos_paths
3985 ;;
3986 win32|win64)
3987 disable symver
3988 if enabled shared; then
3989 # Link to the import library instead of the normal static library
3990 # for shared libs.
3991 LD_LIB='%.lib'
3992 # Cannot build both shared and static libs with MSVC or icl.
3993 disable static
3994 fi
3995 shlibdir_default="$bindir_default"
3996 SLIBPREF=""
3997 SLIBSUF=".dll"
3998 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3999 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4000 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4001 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4002 SLIB_INSTALL_LINKS=
4003 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4004 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4005 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4006 enabled x86_64 && objformat="win64" || objformat="win32"
4007 ranlib=:
4008 enable dos_paths
4009 ;;
4010 cygwin*)
4011 target_os=cygwin
4012 shlibdir_default="$bindir_default"
4013 SLIBPREF="cyg"
4014 SLIBSUF=".dll"
4015 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4016 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4017 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4018 SLIB_INSTALL_LINKS=
4019 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4020 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4021 enabled x86_64 && objformat="win64" || objformat="win32"
4022 enable dos_paths
4023 ;;
4024 *-dos|freedos|opendos)
4025 network_extralibs="-lsocket"
4026 objformat="coff"
4027 enable dos_paths
4028 add_cppflags -U__STRICT_ANSI__
4029 ;;
4030 linux)
4031 enable section_data_rel_ro
4032 ;;
4033 irix*)
4034 target_os=irix
4035 ranlib="echo ignoring ranlib"
4036 ;;
4037 os/2*)
4038 ln_s="cp -f"
4039 objformat="aout"
4040 add_cppflags -D_GNU_SOURCE
4041 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4042 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4043 LIBSUF="_s.a"
4044 SLIBPREF=""
4045 SLIBSUF=".dll"
4046 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4047 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4048 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4049 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4050 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4051 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4052 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4053 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4054 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4055 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4056 enable dos_paths
4057 ;;
4058 gnu/kfreebsd)
4059 add_cppflags -D_BSD_SOURCE
4060 ;;
4061 gnu)
4062 ;;
4063 qnx)
4064 add_cppflags -D_QNX_SOURCE
4065 network_extralibs="-lsocket"
4066 ;;
4067 symbian)
4068 SLIBSUF=".dll"
4069 enable dos_paths
4070 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4071 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4072 add_ldflags -Wl,--target1-abs,--no-undefined \
4073 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4074 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4075 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4076 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4077 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4078 ;;
4079 minix)
4080 ;;
4081 none)
4082 ;;
4083 *)
4084 die "Unknown OS '$target_os'."
4085 ;;
4086 esac
4087
4088 # determine libc flavour
4089
4090 probe_libc(){
4091 pfx=$1
4092 pfx_no_=${pfx%_}
4093 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4094 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4095 eval ${pfx}libc_type=uclibc
4096 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4097 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4098 eval ${pfx}libc_type=glibc
4099 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4100 # MinGW headers can be installed on Cygwin, so check for newlib first.
4101 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4102 eval ${pfx}libc_type=newlib
4103 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4104 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4105 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4106 eval ${pfx}libc_type=mingw64
4107 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4108 eval test \$${pfx_no_}cc_type = "gcc" &&
4109 add_${pfx}cppflags -D__printf__=__gnu_printf__
4110 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4111 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4112 eval ${pfx}libc_type=mingw32
4113 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4114 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4115 die "ERROR: MinGW32 runtime version must be >= 3.15."
4116 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4117 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4118 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4119 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4120 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4121 eval test \$${pfx_no_}cc_type = "gcc" &&
4122 add_${pfx}cppflags -D__printf__=__gnu_printf__
4123 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4124 eval ${pfx}libc_type=msvcrt
4125 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4126 if [ "$pfx" = host_ ]; then
4127 add_host_cppflags -Dsnprintf=_snprintf
4128 else
4129 add_compat strtod.o strtod=avpriv_strtod
4130 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4131 _snprintf=avpriv_snprintf \
4132 vsnprintf=avpriv_vsnprintf
4133 fi
4134 fi
4135 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4136 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4137 # 0x601 by default unless something else is set by the user.
4138 # This can easily lead to us detecting functions only present
4139 # in such new versions and producing binaries requiring windows 7.0.
4140 # Therefore explicitly set the default to XP unless the user has
4141 # set something else on the command line.
4142 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4143 # family. For these cases, configure is free to use any functions
4144 # found in the SDK headers by default. (Alternatively, we could force
4145 # _WIN32_WINNT to 0x0602 in that case.)
4146 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4147 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4148 #ifdef WINAPI_FAMILY
4149 #include <winapifamily.h>
4150 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4151 #error not desktop
4152 #endif
4153 #endif
4154 EOF
4155 if [ "$pfx" = "" ]; then
4156 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4157 fi
4158 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4159 eval ${pfx}libc_type=klibc
4160 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4161 eval ${pfx}libc_type=bionic
4162 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4163 eval ${pfx}libc_type=solaris
4164 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4165 else
4166 eval ${pfx}libc_type=default
4167 add_${pfx}cppflags -D_DEFAULT_SOURCE
4168 fi
4169 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4170 }
4171
4172 probe_libc
4173 probe_libc host_
4174
4175 # hacks for compiler/libc/os combinations
4176
4177 case $libc_type in
4178 bionic)
4179 add_compat strtod.o strtod=avpriv_strtod
4180 ;;
4181 glibc)
4182 if enabled tms470; then
4183 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4184 add_cppflags -D__USER_LABEL_PREFIX__=
4185 add_cppflags -D__builtin_memset=memset
4186 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4187 add_cflags -pds=48 # incompatible redefinition of macro
4188 fi
4189 ;;
4190 esac
4191
4192 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4193 add_cppflags '-I\$(SRC_PATH)/compat/float'
4194
4195 esc(){
4196 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4197 }
4198
4199 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4200
4201 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4202
4203 set_default $PATHS_LIST
4204 set_default nm
4205
4206 disabled optimizations || check_cflags -fomit-frame-pointer
4207
4208 enable_weak_pic() {
4209 disabled pic && return
4210 enable pic
4211 add_cppflags -DPIC
4212 case "$target_os" in
4213 mingw*|cygwin*|win*)
4214 ;;
4215 *)
4216 add_cflags -fPIC
4217 add_asflags -fPIC
4218 ;;
4219 esac
4220 }
4221
4222 enabled pic && enable_weak_pic
4223
4224 check_cc <<EOF || die "Symbol mangling check failed."
4225 int ff_extern;
4226 EOF
4227 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4228 extern_prefix=${sym%%ff_extern*}
4229
4230 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4231
4232 _restrict=
4233 for restrict_keyword in restrict __restrict__ __restrict; do
4234 check_cc <<EOF && _restrict=$restrict_keyword && break
4235 void foo(char * $restrict_keyword p);
4236 EOF
4237 done
4238
4239 check_cc <<EOF && enable pragma_deprecated
4240 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4241 EOF
4242
4243 check_cc <<EOF || die "endian test failed"
4244 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4245 EOF
4246 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4247
4248 check_gas() {
4249 log "check_gas using '$as' as AS"
4250 # :vararg is used on aarch64, arm and ppc altivec
4251 check_as <<EOF || return 1
4252 .macro m n, y:vararg=0
4253 \n: .int \y
4254 .endm
4255 m x
4256 EOF
4257 # .altmacro is only used in arm asm
4258 ! enabled arm || check_as <<EOF || return 1
4259 .altmacro
4260 EOF
4261 enable gnu_as
4262 return 0
4263 }
4264
4265 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4266 nogas=:
4267 enabled_any arm aarch64 && nogas=die
4268 enabled_all ppc altivec && nogas=warn
4269 as_noop=-v
4270
4271 case $as_type in
4272 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4273 gcc) gaspp_as_type=gas ;;
4274 *) gaspp_as_type=$as_type ;;
4275 esac
4276
4277 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4278
4279 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4280 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4281
4282 if ! check_gas ; then
4283 as=${gas:=$as}
4284 check_gas || \
4285 $nogas "GNU assembler not found, install/update gas-preprocessor"
4286 fi
4287
4288 check_as <<EOF && enable as_func
4289 .func test
4290 .endfunc
4291 EOF
4292 fi
4293
4294 check_inline_asm inline_asm_labels '"1:\n"'
4295
4296 if enabled aarch64; then
4297 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4298 # internal assembler in clang 3.3 does not support this instruction
4299 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4300 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4301
4302 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4303
4304 elif enabled alpha; then
4305
4306 check_cflags -mieee
4307
4308 elif enabled arm; then
4309
4310 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4311 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4312 enabled thumb && check_cflags -mthumb || check_cflags -marm
4313
4314 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4315 enable vfp_args
4316 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4317 enable vfp_args
4318 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4319 case "${cross_prefix:-$cc}" in
4320 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4321 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4322 __asm__ (".eabi_attribute 28, 1");
4323 int main(void) { return 0; }
4324 EOF
4325 esac
4326 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4327 fi
4328
4329 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4330 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4331 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4332 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4333 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4334 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4335
4336 [ $target_os = linux ] || [ $target_os = android ] ||
4337 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4338 $ARCH_EXT_LIST_ARM
4339
4340 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4341
4342 check_as <<EOF && enable as_arch_directive
4343 .arch armv7-a
4344 EOF
4345 check_as <<EOF && enable as_fpu_directive
4346 .fpu neon
4347 EOF
4348
4349 # llvm's integrated assembler supports .object_arch from llvm 3.5
4350 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4351 check_as <<EOF && enable as_object_arch
4352 .object_arch armv4
4353 EOF
4354
4355 # MS armasm fails to assemble our PIC constructs
4356 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4357
4358 elif enabled mips; then
4359
4360 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4361
4362 # make sure that only an instruction set is enabled
4363 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4364
4365 if enabled mips64; then
4366 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4367 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4368 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4369 else
4370 check_inline_asm mips32r6 '"aui $0, $