7e788befc953bd869104b341eba444258cfe8bea
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libkvazaar HEVC video encoding
207 --enable-libmp3lame MP3 audio encoding
208 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
209 --enable-libopencore-amrwb AMR-WB audio decoding
210 --enable-libopencv computer vision
211 --enable-libopenh264 H.264 video encoding/decoding
212 --enable-libopenjpeg JPEG 2000 image encoding/decoding
213 --enable-libopus Opus audio encoding/decoding
214 --enable-libpulse Pulseaudio sound server
215 --enable-librtmp RTMP streaming
216 --enable-libschroedinger Dirac video encoding/decoding
217 --enable-libsnappy snappy compression
218 --enable-libspeex Speex audio encoding/decoding
219 --enable-libtheora Theora video encoding/decoding
220 --enable-libtwolame MP2 audio encoding
221 --enable-libvo-aacenc AAC audio encoding
222 --enable-libvo-amrwbenc AMR-WB audio encoding
223 --enable-libvorbis Vorbis audio encoding/decoding
224 --enable-libvpx VP* video encoding/decoding
225 --enable-libwavpack Wavpack audio encoding/decoding
226 --enable-libwebp WebP image encoding/decoding
227 --enable-libx264 H.264 video encoding
228 --enable-libx265 HEVC video encoding
229 --enable-libxavs Chinese AVS video encoding
230 --enable-libxcb X window system protocol communication
231 --enable-libxcb-shm X11 shm communication [auto]
232 --enable-libxcb-xfixes X11 mouse rendering [auto]
233 --enable-libxvid MPEG-4 ASP video encoding
234 --enable-openssl crypto
235 --enable-zlib compression [autodetect]
236
237 The following libraries provide various hardware acceleration features:
238 --enable-cuda Nvidia CUDA (dynamically linked)
239 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
240 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
241 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
242 --enable-libnpp Nvidia CUDA processing
243 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
244 --enable-nvenc Nvidia video encoding
245 --enable-omx OpenMAX IL
246 --enable-omx-rpi OpenMAX IL for Raspberry Pi
247 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
248 --enable-vda Apple Video Decode Acceleration [auto]
249 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
250
251 Toolchain options:
252 --arch=ARCH select architecture [$arch]
253 --cpu=CPU select the minimum required CPU (affects
254 instruction selection, may crash on older CPUs)
255 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
256 --enable-cross-compile assume a cross-compiler is used
257 --sysroot=PATH root of cross-build tree
258 --sysinclude=PATH location of cross-build system headers
259 --target-os=OS compiler targets OS [$target_os]
260 --target-exec=CMD command to run executables on target
261 --target-path=DIR path to view of build directory on target
262 --target-samples=DIR path to samples directory on target
263 --toolchain=NAME set tool defaults according to NAME
264 --nm=NM use nm tool
265 --ar=AR use archive tool AR [$ar_default]
266 --as=AS use assembler AS [$as_default]
267 --cc=CC use C compiler CC [$cc_default]
268 --objcc=OCC use ObjC compiler OCC [$cc_default]
269 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
270 --ld=LD use linker LD
271 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
272 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
273 --host-cc=HOSTCC use host C compiler HOSTCC
274 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
275 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
276 --host-ld=HOSTLD use host linker HOSTLD
277 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
278 --host-libs=HLIBS use libs HLIBS when linking for host
279 --host-os=OS compiler host OS [$target_os]
280 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
281 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
282 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
283 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
284 --extra-libs=ELIBS add ELIBS [$ELIBS]
285 --extra-version=STRING version string suffix []
286 --optflags=OPTFLAGS override optimization-related compiler flags
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
291
292 Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
301
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-x86asm disable use of standalone x86 assembly
329
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --enable-random randomly enable/disable components
342 --disable-random
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
347 NAME (default 0.5).
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
351 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
352 in the name) of tests whose result is ignored
353
354 NOTE: Object files are built at the place where configure is launched.
355 EOF
356 exit 0
357 }
358
359 quotes='""'
360
361 log(){
362 echo "$@" >> $logfile
363 }
364
365 log_file(){
366 log BEGIN $1
367 i=1
368 while read line; do
369 printf '%5s %s\n' "${i}" "${line}"
370 i=$(($i+1))
371 done < $1 >> $logfile
372 log END $1
373 }
374
375 echolog(){
376 log "$@"
377 echo "$@"
378 }
379
380 warn(){
381 log "WARNING: $*"
382 WARNINGS="${WARNINGS}WARNING: $*\n"
383 }
384
385 die(){
386 echolog "$@"
387 cat <<EOF
388
389 If you think configure made a mistake, make sure you are using the latest
390 version from Git. If the latest version fails, report the problem to the
391 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
392 EOF
393 if disabled logging; then
394 cat <<EOF
395 Rerun configure with logging enabled (do not use --disable-logging), and
396 include the log this produces with your report.
397 EOF
398 else
399 cat <<EOF
400 Include the log file "$logfile" produced by configure as this will help
401 solving the problem.
402 EOF
403 fi
404 exit 1
405 }
406
407 # Avoid locale weirdness, besides we really just want to translate ASCII.
408 toupper(){
409 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
410 }
411
412 tolower(){
413 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
414 }
415
416 c_escape(){
417 echo "$*" | sed 's/["\\]/\\\0/g'
418 }
419
420 sh_quote(){
421 v=$(echo "$1" | sed "s/'/'\\\\''/g")
422 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
423 echo "$v"
424 }
425
426 cleanws(){
427 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
428 }
429
430 filter(){
431 pat=$1
432 shift
433 for v; do
434 eval "case $v in $pat) printf '%s ' $v ;; esac"
435 done
436 }
437
438 filter_out(){
439 pat=$1
440 shift
441 for v; do
442 eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
443 done
444 }
445
446 map(){
447 m=$1
448 shift
449 for v; do eval $m; done
450 }
451
452 add_suffix(){
453 suffix=$1
454 shift
455 for v; do echo ${v}${suffix}; done
456 }
457
458 set_all(){
459 value=$1
460 shift
461 for var in $*; do
462 eval $var=$value
463 done
464 }
465
466 set_weak(){
467 value=$1
468 shift
469 for var; do
470 eval : \${$var:=$value}
471 done
472 }
473
474 sanitize_var_name(){
475 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
476 }
477
478 set_safe(){
479 var=$1
480 shift
481 eval $(sanitize_var_name "$var")='$*'
482 }
483
484 get_safe(){
485 eval echo \$$(sanitize_var_name "$1")
486 }
487
488 pushvar(){
489 for pvar in $*; do
490 eval level=\${${pvar}_level:=0}
491 eval ${pvar}_${level}="\$$pvar"
492 eval ${pvar}_level=$(($level+1))
493 done
494 }
495
496 popvar(){
497 for pvar in $*; do
498 eval level=\${${pvar}_level:-0}
499 test $level = 0 && continue
500 eval level=$(($level-1))
501 eval $pvar="\${${pvar}_${level}}"
502 eval ${pvar}_level=$level
503 eval unset ${pvar}_${level}
504 done
505 }
506
507 enable(){
508 set_all yes $*
509 }
510
511 disable(){
512 set_all no $*
513 }
514
515 enable_weak(){
516 set_weak yes $*
517 }
518
519 disable_weak(){
520 set_weak no $*
521 }
522
523 enable_safe(){
524 for var; do
525 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
526 done
527 }
528
529 disable_safe(){
530 for var; do
531 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
532 done
533 }
534
535 do_enable_deep(){
536 for var; do
537 enabled $var && continue
538 eval sel="\$${var}_select"
539 eval sgs="\$${var}_suggest"
540 pushvar var sgs
541 enable_deep $sel
542 popvar sgs
543 enable_deep_weak $sgs
544 popvar var
545 done
546 }
547
548 enable_deep(){
549 do_enable_deep $*
550 enable $*
551 }
552
553 enable_deep_weak(){
554 for var; do
555 disabled $var && continue
556 pushvar var
557 do_enable_deep $var
558 popvar var
559 enable_weak $var
560 done
561 }
562
563 enabled(){
564 test "${1#!}" = "$1" && op== || op=!=
565 eval test "x\$${1#!}" $op "xyes"
566 }
567
568 disabled(){
569 test "${1#!}" = "$1" && op== || op=!=
570 eval test "x\$${1#!}" $op "xno"
571 }
572
573 enabled_all(){
574 for opt; do
575 enabled $opt || return 1
576 done
577 }
578
579 disabled_all(){
580 for opt; do
581 disabled $opt || return 1
582 done
583 }
584
585 enabled_any(){
586 for opt; do
587 enabled $opt && return 0
588 done
589 }
590
591 disabled_any(){
592 for opt; do
593 disabled $opt && return 0
594 done
595 return 1
596 }
597
598 set_default(){
599 for opt; do
600 eval : \${$opt:=\$${opt}_default}
601 done
602 }
603
604 is_in(){
605 value=$1
606 shift
607 for var in $*; do
608 [ $var = $value ] && return 0
609 done
610 return 1
611 }
612
613 check_deps(){
614 for cfg; do
615 enabled ${cfg}_checking && die "Circular dependency for $cfg."
616 disabled ${cfg}_checking && continue
617 enable ${cfg}_checking
618 append allopts $cfg
619
620 eval dep_all="\$${cfg}_deps"
621 eval dep_any="\$${cfg}_deps_any"
622 eval dep_con="\$${cfg}_conflict"
623 eval dep_sel="\$${cfg}_select"
624 eval dep_sgs="\$${cfg}_suggest"
625 eval dep_ifa="\$${cfg}_if"
626 eval dep_ifn="\$${cfg}_if_any"
627
628 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
629 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
630 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
631
632 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
633 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
634 enabled_all $dep_all || disable $cfg
635 enabled_any $dep_any || disable $cfg
636 disabled_all $dep_con || disable $cfg
637 disabled_any $dep_sel && disable $cfg
638
639 if enabled $cfg; then
640 enable_deep $dep_sel
641 enable_deep_weak $dep_sgs
642 for dep in $dep_all $dep_any $dep_sgs; do
643 # filter out library deps, these do not belong in extralibs
644 is_in $dep $LIBRARY_LIST && continue
645 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
646 done
647 fi
648
649 disable ${cfg}_checking
650 done
651 }
652
653 print_config(){
654 pfx=$1
655 files=$2
656 shift 2
657 map 'eval echo "$v \${$v:-no}"' "$@" |
658 awk "BEGIN { split(\"$files\", files) }
659 {
660 c = \"$pfx\" toupper(\$1);
661 v = \$2;
662 sub(/yes/, 1, v);
663 sub(/no/, 0, v);
664 for (f in files) {
665 file = files[f];
666 if (file ~ /\\.h\$/) {
667 printf(\"#define %s %d\\n\", c, v) >>file;
668 } else if (file ~ /\\.asm\$/) {
669 printf(\"%%define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.mak\$/) {
671 n = -v ? \"\" : \"!\";
672 printf(\"%s%s=yes\\n\", n, c) >>file;
673 }
674 }
675 }"
676 }
677
678 print_enabled(){
679 suf=$1
680 shift
681 for v; do
682 enabled $v && printf "%s\n" ${v%$suf}
683 done
684 }
685
686 append(){
687 var=$1
688 shift
689 eval "$var=\"\$$var $*\""
690 }
691
692 prepend(){
693 var=$1
694 shift
695 eval "$var=\"$* \$$var\""
696 }
697
698 unique(){
699 var=$1
700 uniq_list=""
701 for tok in $(eval echo \$$var); do
702 uniq_list="$(filter_out $tok $uniq_list) $tok"
703 done
704 eval "$var=\"${uniq_list}\""
705 }
706
707 resolve(){
708 var=$1
709 tmpvar=
710 for entry in $(eval echo \$$var); do
711 tmpvar="$tmpvar $(eval echo \$${entry})"
712 done
713 eval "$var=\"${tmpvar}\""
714 }
715
716 add_cppflags(){
717 append CPPFLAGS "$@"
718 }
719
720 add_cflags(){
721 append CFLAGS $($cflags_filter "$@")
722 }
723
724 add_cflags_headers(){
725 append CFLAGS_HEADERS $($cflags_filter "$@")
726 }
727
728 add_asflags(){
729 append ASFLAGS $($asflags_filter "$@")
730 }
731
732 add_objcflags(){
733 append OBJCFLAGS $($objcflags_filter "$@")
734 }
735
736 add_ldflags(){
737 append LDFLAGS $($ldflags_filter "$@")
738 }
739
740 add_ldexeflags(){
741 append LDEXEFLAGS $($ldflags_filter "$@")
742 }
743
744 add_stripflags(){
745 append STRIPFLAGS "$@"
746 }
747
748 add_extralibs(){
749 prepend extralibs $($ldflags_filter "$@")
750 }
751
752 add_host_cppflags(){
753 append host_cppflags "$@"
754 }
755
756 add_host_cflags(){
757 append host_cflags $($host_cflags_filter "$@")
758 }
759
760 add_host_ldflags(){
761 append host_ldflags $($host_ldflags_filter "$@")
762 }
763
764 add_compat(){
765 append compat_objs $1
766 shift
767 map 'add_cppflags -D$v' "$@"
768 }
769
770 check_cmd(){
771 log "$@"
772 "$@" >> $logfile 2>&1
773 }
774
775 cc_o(){
776 eval printf '%s\\n' $CC_O
777 }
778
779 cc_e(){
780 eval printf '%s\\n' $CC_E
781 }
782
783 check_cc(){
784 log check_cc "$@"
785 cat > $TMPC
786 log_file $TMPC
787 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
788 }
789
790 check_objcc(){
791 log check_objcc "$@"
792 cat > $TMPC
793 log_file $TMPC
794 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
795 }
796
797 check_cpp(){
798 log check_cpp "$@"
799 cat > $TMPC
800 log_file $TMPC
801 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
802 }
803
804 as_o(){
805 eval printf '%s\\n' $AS_O
806 }
807
808 check_as(){
809 log check_as "$@"
810 cat > $TMPS
811 log_file $TMPS
812 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
813 }
814
815 check_inline_asm(){
816 log check_inline_asm "$@"
817 name="$1"
818 code="$2"
819 shift 2
820 disable $name
821 check_cc "$@" <<EOF && enable $name
822 void foo(void){ __asm__ volatile($code); }
823 EOF
824 }
825
826 check_insn(){
827 log check_insn "$@"
828 check_inline_asm ${1}_inline "\"$2\""
829 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
830 }
831
832 check_x86asm(){
833 log check_x86asm "$@"
834 echo "$1" > $TMPS
835 log_file $TMPS
836 shift 1
837 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
838 }
839
840 ld_o(){
841 eval printf '%s\\n' $LD_O
842 }
843
844 check_ld(){
845 log check_ld "$@"
846 flags=$(filter_out '-l*' "$@")
847 libs=$(filter '-l*' "$@")
848 check_cc $($cflags_filter $flags) || return
849 flags=$($ldflags_filter $flags)
850 libs=$($ldflags_filter $libs)
851 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
852 }
853
854 print_include(){
855 hdr=$1
856 test "${hdr%.h}" = "${hdr}" &&
857 echo "#include $hdr" ||
858 echo "#include <$hdr>"
859 }
860
861 check_code(){
862 log check_code "$@"
863 check=$1
864 headers=$2
865 code=$3
866 shift 3
867 {
868 for hdr in $headers; do
869 print_include $hdr
870 done
871 echo "int main(void) { $code; return 0; }"
872 } | check_$check "$@"
873 }
874
875 check_cppflags(){
876 log check_cppflags "$@"
877 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
878 #include <stdlib.h>;
879 EOF
880 }
881
882 test_cflags(){
883 log test_cflags "$@"
884 set -- $($cflags_filter "$@")
885 check_cc "$@" <<EOF
886 int x;
887 EOF
888 }
889
890 check_cflags(){
891 log check_cflags "$@"
892 test_cflags "$@" && add_cflags "$@"
893 }
894
895 test_objcflags(){
896 log test_objcflags "$@"
897 set -- $($objcflags_filter "$@")
898 check_objcc "$@" <<EOF
899 int x;
900 EOF
901 }
902
903 check_objcflags(){
904 log check_objcflags "$@"
905 test_objcflags "$@" && add_objcflags "$@"
906 }
907
908 test_ldflags(){
909 log test_ldflags "$@"
910 check_ld "$@" <<EOF
911 int main(void){ return 0; }
912 EOF
913 }
914
915 check_ldflags(){
916 log check_ldflags "$@"
917 test_ldflags "$@" && add_ldflags "$@"
918 }
919
920 test_stripflags(){
921 log test_stripflags "$@"
922 # call check_cc to get a fresh TMPO
923 check_cc <<EOF
924 int main(void) { return 0; }
925 EOF
926 check_cmd $strip $STRIPFLAGS "$@" $TMPO
927 }
928
929 check_stripflags(){
930 log check_stripflags "$@"
931 test_stripflags "$@" && add_stripflags "$@"
932 }
933
934 check_header(){
935 log check_header "$@"
936 header=$1
937 shift
938 disable_safe $header
939 check_cpp "$@" <<EOF && enable_safe $header
940 #include <$header>
941 int x;
942 EOF
943 }
944
945 check_func(){
946 log check_func "$@"
947 func=$1
948 shift
949 disable $func
950 check_ld "$@" <<EOF && enable $func
951 extern int $func();
952 int main(void){ $func(); }
953 EOF
954 }
955
956 check_mathfunc(){
957 log check_mathfunc "$@"
958 func=$1
959 narg=$2
960 shift 2
961 test $narg = 2 && args="f, g" || args="f"
962 disable $func
963 check_ld "$@" <<EOF && enable $func
964 #include <math.h>
965 float foo(float f, float g) { return $func($args); }
966 int main(void){ return 0; }
967 EOF
968 }
969
970 check_func_headers(){
971 log check_func_headers "$@"
972 headers=$1
973 funcs=$2
974 shift 2
975 {
976 for hdr in $headers; do
977 print_include $hdr
978 done
979 for func in $funcs; do
980 echo "long check_$func(void) { return (long) $func; }"
981 done
982 echo "int main(void) { return 0; }"
983 } | check_ld "$@" && enable $funcs && enable_safe $headers
984 }
985
986 check_cpp_condition(){
987 log check_cpp_condition "$@"
988 header=$1
989 condition=$2
990 shift 2
991 check_cpp "$@" <<EOF
992 #include <$header>
993 #if !($condition)
994 #error "unsatisfied condition: $condition"
995 #endif
996 EOF
997 }
998
999 test_cflags_cpp(){
1000 log test_cflags_cpp "$@"
1001 flags=$1
1002 condition=$2
1003 shift 2
1004 set -- $($cflags_filter "$flags")
1005 check_cpp "$@" <<EOF
1006 #if !($condition)
1007 #error "unsatisfied condition: $condition"
1008 #endif
1009 EOF
1010 }
1011
1012 check_lib(){
1013 log check_lib "$@"
1014 name="$1"
1015 headers="$2"
1016 funcs="$3"
1017 shift 3
1018 disable $name
1019 check_func_headers "$headers" "$funcs" "$@" &&
1020 enable $name && eval ${name}_extralibs="\$@"
1021 }
1022
1023 check_pkg_config(){
1024 log check_pkg_config "$@"
1025 name="$1"
1026 pkg_version="$2"
1027 pkg="${2%% *}"
1028 headers="$3"
1029 funcs="$4"
1030 shift 4
1031 disable $name
1032 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1033 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1034 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1035 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1036 enable $name &&
1037 add_cflags "$pkg_cflags" &&
1038 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1039 }
1040
1041 check_exec(){
1042 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1043 }
1044
1045 check_exec_crash(){
1046 log check_exec_crash "$@"
1047 code=$(cat)
1048
1049 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1050 # are safe but may not be available everywhere. Thus we use
1051 # raise(SIGTERM) instead. The check is run in a subshell so we
1052 # can redirect the "Terminated" message from the shell. SIGBUS
1053 # is not defined by standard C so it is used conditionally.
1054
1055 (check_exec "$@") >> $logfile 2>&1 <<EOF
1056 #include <signal.h>
1057 static void sighandler(int sig){
1058 raise(SIGTERM);
1059 }
1060 int foo(void){
1061 $code
1062 }
1063 int (*func_ptr)(void) = foo;
1064 int main(void){
1065 signal(SIGILL, sighandler);
1066 signal(SIGFPE, sighandler);
1067 signal(SIGSEGV, sighandler);
1068 #ifdef SIGBUS
1069 signal(SIGBUS, sighandler);
1070 #endif
1071 return func_ptr();
1072 }
1073 EOF
1074 }
1075
1076 check_type(){
1077 log check_type "$@"
1078 headers=$1
1079 type=$2
1080 shift 2
1081 disable_safe "$type"
1082 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1083 }
1084
1085 check_struct(){
1086 log check_struct "$@"
1087 headers=$1
1088 struct=$2
1089 member=$3
1090 shift 3
1091 disable_safe "${struct}_${member}"
1092 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1093 enable_safe "${struct}_${member}"
1094 }
1095
1096 check_builtin(){
1097 log check_builtin "$@"
1098 name=$1
1099 headers=$2
1100 builtin=$3
1101 shift 3
1102 disable "$name"
1103 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1104 }
1105
1106 check_compile_assert(){
1107 log check_compile_assert "$@"
1108 name=$1
1109 headers=$2
1110 condition=$3
1111 shift 3
1112 disable "$name"
1113 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1114 }
1115
1116 require(){
1117 log require "$@"
1118 name_version="$1"
1119 name="${1%% *}"
1120 headers="$2"
1121 func="$3"
1122 shift 3
1123 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1124 }
1125
1126 require_header(){
1127 log require "$@"
1128 header="$1"
1129 shift
1130 check_header "$header" "$@" || die "ERROR: $header not found"
1131 }
1132
1133 require_cpp_condition(){
1134 log require "$@"
1135 header="$1"
1136 condition="$2"
1137 shift 2
1138 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1139 }
1140
1141 require_pkg_config(){
1142 log require_pkg_config "$@"
1143 pkg_version="$2"
1144 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1145 }
1146
1147 hostcc_e(){
1148 eval printf '%s\\n' $HOSTCC_E
1149 }
1150
1151 hostcc_o(){
1152 eval printf '%s\\n' $HOSTCC_O
1153 }
1154
1155 check_host_cc(){
1156 log check_host_cc "$@"
1157 cat > $TMPC
1158 log_file $TMPC
1159 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1160 }
1161
1162 check_host_cpp(){
1163 log check_host_cpp "$@"
1164 cat > $TMPC
1165 log_file $TMPC
1166 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1167 }
1168
1169 check_host_cppflags(){
1170 log check_host_cppflags "$@"
1171 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1172 #include <stdlib.h>;
1173 EOF
1174 }
1175
1176 check_host_cflags(){
1177 log check_host_cflags "$@"
1178 set -- $($host_cflags_filter "$@")
1179 check_host_cc "$@" <<EOF && append host_cflags "$@"
1180 int x;
1181 EOF
1182 }
1183
1184 check_host_cpp_condition(){
1185 log check_host_cpp_condition "$@"
1186 header=$1
1187 condition=$2
1188 shift 2
1189 check_host_cpp "$@" <<EOF
1190 #include <$header>
1191 #if !($condition)
1192 #error "unsatisfied condition: $condition"
1193 #endif
1194 EOF
1195 }
1196
1197 apply(){
1198 file=$1
1199 shift
1200 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1201 }
1202
1203 cp_if_changed(){
1204 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1205 mkdir -p "$(dirname $2)"
1206 cp -f "$1" "$2"
1207 }
1208
1209 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1210 # system-dependent things.
1211
1212 AVCODEC_COMPONENTS="
1213 bsfs
1214 decoders
1215 encoders
1216 hwaccels
1217 parsers
1218 "
1219
1220 AVDEVICE_COMPONENTS="
1221 indevs
1222 outdevs
1223 "
1224 AVFILTER_COMPONENTS="
1225 filters
1226 "
1227 AVFORMAT_COMPONENTS="
1228 demuxers
1229 muxers
1230 protocols
1231 "
1232
1233 AVRESAMPLE_COMPONENTS=""
1234 AVUTIL_COMPONENTS=""
1235
1236 COMPONENT_LIST="
1237 $AVCODEC_COMPONENTS
1238 $AVDEVICE_COMPONENTS
1239 $AVFILTER_COMPONENTS
1240 $AVFORMAT_COMPONENTS
1241 $AVRESAMPLE_COMPONENTS
1242 $AVUTIL_COMPONENTS
1243 "
1244
1245 EXAMPLE_LIST="
1246 decode_audio_example
1247 decode_video_example
1248 encode_audio_example
1249 encode_video_example
1250 filter_audio_example
1251 metadata_example
1252 output_example
1253 qsvdec_example
1254 transcode_aac_example
1255 "
1256
1257 # catchall list of things that require external libs to link
1258 EXTRALIBS_LIST="
1259 cpu_init
1260 cws2fws
1261 "
1262
1263 HWACCEL_LIBRARY_NONFREE_LIST="
1264 cuda
1265 libnpp
1266 "
1267 HWACCEL_LIBRARY_LIST="
1268 $HWACCEL_LIBRARY_NONFREE_LIST
1269 d3d11va
1270 dxva2
1271 libmfx
1272 mmal
1273 nvenc
1274 omx
1275 vaapi
1276 vda
1277 vdpau
1278 "
1279
1280 EXTERNAL_LIBRARY_GPL_LIST="
1281 libcdio
1282 libx264
1283 libx265
1284 libxavs
1285 libxvid
1286 "
1287
1288 EXTERNAL_LIBRARY_NONFREE_LIST="
1289 libfaac
1290 libfdk_aac
1291 openssl
1292 "
1293
1294 EXTERNAL_LIBRARY_VERSION3_LIST="
1295 libopencore_amrnb
1296 libopencore_amrwb
1297 libvo_aacenc
1298 libvo_amrwbenc
1299 "
1300
1301 EXTERNAL_LIBRARY_LIST="
1302 $EXTERNAL_LIBRARY_GPL_LIST
1303 $EXTERNAL_LIBRARY_NONFREE_LIST
1304 $EXTERNAL_LIBRARY_VERSION3_LIST
1305 avisynth
1306 avxsynth
1307 frei0r
1308 gnutls
1309 libbs2b
1310 libdc1394
1311 libdcadec
1312 libfontconfig
1313 libfreetype
1314 libgsm
1315 libhdcd
1316 libilbc
1317 libkvazaar
1318 libmp3lame
1319 libopencv
1320 libopenh264
1321 libopenjpeg
1322 libopus
1323 libpulse
1324 librtmp
1325 libschroedinger
1326 libsnappy
1327 libspeex
1328 libtheora
1329 libtwolame
1330 libvorbis
1331 libvpx
1332 libwavpack
1333 libwebp
1334 libxcb
1335 libxcb_shm
1336 libxcb_xfixes
1337 "
1338
1339 SYSTEM_LIBRARY_LIST="
1340 bzlib
1341 zlib
1342 "
1343
1344 FEATURE_LIST="
1345 gray
1346 hardcoded_tables
1347 omx_rpi
1348 runtime_cpudetect
1349 safe_bitstream_reader
1350 shared
1351 small
1352 sram
1353 static
1354 swscale_alpha
1355 "
1356
1357 LIBRARY_LIST="
1358 avcodec
1359 avdevice
1360 avfilter
1361 avformat
1362 avresample
1363 avutil
1364 swscale
1365 "
1366
1367 LICENSE_LIST="
1368 gpl
1369 nonfree
1370 version3
1371 "
1372
1373 PROGRAM_LIST="
1374 avconv
1375 avplay
1376 avprobe
1377 "
1378
1379 SUBSYSTEM_LIST="
1380 dct
1381 doc
1382 error_resilience
1383 faan
1384 fft
1385 lsp
1386 lzo
1387 mdct
1388 network
1389 rdft
1390 "
1391
1392 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1393 CONFIG_LIST="
1394 $EXAMPLE_LIST
1395 $EXTERNAL_LIBRARY_LIST
1396 $HWACCEL_LIBRARY_LIST
1397 $FEATURE_LIST
1398 $LICENSE_LIST
1399 $LIBRARY_LIST
1400 $PROGRAM_LIST
1401 $SUBSYSTEM_LIST
1402 $SYSTEM_LIBRARY_LIST
1403 neon_clobber_test
1404 pic
1405 pod2man
1406 texi2html
1407 thumb
1408 valgrind_backtrace
1409 xmm_clobber_test
1410 $COMPONENT_LIST
1411 "
1412
1413 THREADS_LIST="
1414 pthreads
1415 w32threads
1416 "
1417
1418 ATOMICS_LIST="
1419 atomics_gcc
1420 atomics_suncc
1421 atomics_win32
1422 "
1423
1424 ARCH_LIST="
1425 aarch64
1426 alpha
1427 arm
1428 avr32
1429 avr32_ap
1430 avr32_uc
1431 bfin
1432 ia64
1433 m68k
1434 mips
1435 mips64
1436 parisc
1437 ppc
1438 ppc64
1439 s390
1440 sh4
1441 sparc
1442 sparc64
1443 tilegx
1444 tilepro
1445 tomi
1446 x86
1447 x86_32
1448 x86_64
1449 "
1450
1451 ARCH_EXT_LIST_ARM="
1452 armv5te
1453 armv6
1454 armv6t2
1455 armv8
1456 neon
1457 vfp
1458 vfpv3
1459 "
1460
1461 ARCH_EXT_LIST_X86_SIMD="
1462 amd3dnow
1463 amd3dnowext
1464 avx
1465 avx2
1466 fma3
1467 fma4
1468 mmx
1469 mmxext
1470 sse
1471 sse2
1472 sse3
1473 sse4
1474 sse42
1475 ssse3
1476 xop
1477 "
1478
1479 ARCH_EXT_LIST_PPC="
1480 altivec
1481 dcbzl
1482 ldbrx
1483 power8
1484 ppc4xx
1485 vsx
1486 "
1487
1488 ARCH_EXT_LIST_X86="
1489 $ARCH_EXT_LIST_X86_SIMD
1490 cpunop
1491 i686
1492 "
1493
1494 ARCH_EXT_LIST_MIPS="
1495 loongson
1496 mips32r1
1497 mips64r1
1498 mips32r2
1499 mips64r2
1500 mips32r6
1501 mips64r6
1502 "
1503
1504 ARCH_EXT_LIST="
1505 $ARCH_EXT_LIST_ARM
1506 $ARCH_EXT_LIST_MIPS
1507 $ARCH_EXT_LIST_PPC
1508 $ARCH_EXT_LIST_X86
1509 vis
1510 "
1511
1512 ARCH_FEATURES="
1513 aligned_stack
1514 fast_64bit
1515 fast_clz
1516 fast_cmov
1517 local_aligned_8
1518 local_aligned_16
1519 local_aligned_32
1520 simd_align_16
1521 simd_align_32
1522 "
1523
1524 BUILTIN_LIST="
1525 atomic_cas_ptr
1526 machine_rw_barrier
1527 MemoryBarrier
1528 mm_empty
1529 rdtsc
1530 sem_timedwait
1531 sync_val_compare_and_swap
1532 "
1533 HAVE_LIST_CMDLINE="
1534 inline_asm
1535 symver
1536 x86asm
1537 "
1538
1539 HAVE_LIST_PUB="
1540 bigendian
1541 fast_unaligned
1542 "
1543
1544 HEADERS_LIST="
1545 AVFoundation_AVFoundation_h
1546 alsa_asoundlib_h
1547 altivec_h
1548 arpa_inet_h
1549 cdio_paranoia_h
1550 cdio_paranoia_paranoia_h
1551 d3d11_h
1552 dispatch_dispatch_h
1553 dev_bktr_ioctl_bt848_h
1554 dev_bktr_ioctl_meteor_h
1555 dev_ic_bt8xx_h
1556 dev_video_bktr_ioctl_bt848_h
1557 dev_video_meteor_ioctl_meteor_h
1558 direct_h
1559 dlfcn_h
1560 dxva_h
1561 gsm_h
1562 io_h
1563 mach_mach_time_h
1564 machine_ioctl_bt848_h
1565 machine_ioctl_meteor_h
1566 malloc_h
1567 poll_h
1568 sndio_h
1569 soundcard_h
1570 stdatomic_h
1571 sys_mman_h
1572 sys_param_h
1573 sys_resource_h
1574 sys_select_h
1575 sys_soundcard_h
1576 sys_time_h
1577 sys_un_h
1578 sys_videoio_h
1579 unistd_h
1580 valgrind_valgrind_h
1581 windows_h
1582 winsock2_h
1583 "
1584
1585 INTRINSICS_LIST="
1586 intrinsics_neon
1587 "
1588
1589 MATH_FUNCS="
1590 atanf
1591 atan2f
1592 cbrtf
1593 cosf
1594 exp2
1595 exp2f
1596 expf
1597 isinf
1598 isnan
1599 ldexpf
1600 llrint
1601 llrintf
1602 log2
1603 log2f
1604 log10f
1605 lrint
1606 lrintf
1607 powf
1608 rint
1609 round
1610 roundf
1611 sinf
1612 trunc
1613 truncf
1614 "
1615
1616 SYSTEM_FUNCS="
1617 aligned_malloc
1618 clock_gettime
1619 closesocket
1620 CommandLineToArgvW
1621 CoTaskMemFree
1622 CryptGenRandom
1623 fcntl
1624 flt_lim
1625 fork
1626 getaddrinfo
1627 gethrtime
1628 getopt
1629 GetProcessAffinityMask
1630 GetProcessMemoryInfo
1631 GetProcessTimes
1632 getrusage
1633 GetSystemTimeAsFileTime
1634 gettimeofday
1635 gmtime_r
1636 inet_aton
1637 isatty
1638 jack_port_get_latency_range
1639 LoadLibrary
1640 localtime_r
1641 mach_absolute_time
1642 MapViewOfFile
1643 memalign
1644 mkstemp
1645 mmap
1646 mprotect
1647 nanosleep
1648 posix_memalign
1649 sched_getaffinity
1650 SetConsoleTextAttribute
1651 setmode
1652 setrlimit
1653 Sleep
1654 strerror_r
1655 sysconf
1656 sysctl
1657 usleep
1658 VirtualAlloc
1659 "
1660
1661 TOOLCHAIN_FEATURES="
1662 as_dn_directive
1663 as_fpu_directive
1664 as_func
1665 as_object_arch
1666 asm_mod_q
1667 attribute_may_alias
1668 attribute_packed
1669 blocks_extension
1670 ebp_available
1671 ebx_available
1672 gnu_as
1673 ibm_asm
1674 inline_asm_labels
1675 pragma_deprecated
1676 symver_asm_label
1677 symver_gnu_asm
1678 vfp_args
1679 xform_asm
1680 xmm_clobbers
1681 "
1682
1683 TYPES_LIST="
1684 CONDITION_VARIABLE_Ptr
1685 socklen_t
1686 struct_addrinfo
1687 struct_group_source_req
1688 struct_ip_mreq_source
1689 struct_ipv6_mreq
1690 struct_pollfd
1691 struct_rusage_ru_maxrss
1692 struct_sockaddr_in6
1693 struct_sockaddr_sa_len
1694 struct_sockaddr_storage
1695 struct_v4l2_frmivalenum_discrete
1696 "
1697
1698 HAVE_LIST="
1699 $ARCH_EXT_LIST
1700 $(add_suffix _external $ARCH_EXT_LIST)
1701 $(add_suffix _inline $ARCH_EXT_LIST)
1702 $ARCH_FEATURES
1703 $BUILTIN_LIST
1704 $HAVE_LIST_CMDLINE
1705 $HAVE_LIST_PUB
1706 $HEADERS_LIST
1707 $INTRINSICS_LIST
1708 $MATH_FUNCS
1709 $SYSTEM_FUNCS
1710 $THREADS_LIST
1711 $TOOLCHAIN_FEATURES
1712 $TYPES_LIST
1713 dos_paths
1714 dxva2_lib
1715 libc_msvcrt
1716 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1717 sdl
1718 section_data_rel_ro
1719 threads
1720 vaapi_drm
1721 vaapi_x11
1722 vdpau_x11
1723 "
1724
1725 # options emitted with CONFIG_ prefix but not available on the command line
1726 CONFIG_EXTRA="
1727 aandcttables
1728 ac3dsp
1729 audio_frame_queue
1730 audiodsp
1731 blockdsp
1732 bswapdsp
1733 cabac
1734 dirac_parse
1735 dvprofile
1736 faandct
1737 faanidct
1738 fdctdsp
1739 flacdsp
1740 fmtconvert
1741 g722dsp
1742 gmp
1743 golomb
1744 gplv3
1745 h263dsp
1746 h264chroma
1747 h264dsp
1748 h264parse
1749 h264pred
1750 h264qpel
1751 hevc_ps
1752 hpeldsp
1753 huffman
1754 huffyuvdsp
1755 huffyuvencdsp
1756 idctdsp
1757 iirfilter
1758 imdct15
1759 intrax8
1760 iso_media
1761 ividsp
1762 jpegtables
1763 lgplv3
1764 libx262
1765 libxcb_shape
1766 lpc
1767 lzf
1768 me_cmp
1769 mpeg_er
1770 mpegaudio
1771 mpegaudiodsp
1772 mpegaudioheader
1773 mpegvideo
1774 mpegvideoenc
1775 mss34dsp
1776 pixblockdsp
1777 qpeldsp
1778 qsv
1779 qsvdec
1780 qsvenc
1781 rangecoder
1782 riffdec
1783 riffenc
1784 rtpdec
1785 rtpenc_chain
1786 rv34dsp
1787 sinewin
1788 snappy
1789 srtp
1790 startcode
1791 texturedsp
1792 texturedspenc
1793 tpeldsp
1794 vaapi_encode
1795 vc1dsp
1796 videodsp
1797 vp3dsp
1798 vp56dsp
1799 vp8dsp
1800 wma_freqs
1801 wmv2dsp
1802 "
1803
1804 CMDLINE_SELECT="
1805 $ARCH_EXT_LIST
1806 $CONFIG_LIST
1807 $HAVE_LIST_CMDLINE
1808 $THREADS_LIST
1809 asm
1810 cross_compile
1811 debug
1812 extra_warnings
1813 logging
1814 lto
1815 optimizations
1816 rpath
1817 "
1818
1819 PATHS_LIST="
1820 bindir
1821 datadir
1822 docdir
1823 incdir
1824 libdir
1825 mandir
1826 prefix
1827 shlibdir
1828 "
1829
1830 CMDLINE_SET="
1831 $PATHS_LIST
1832 ar
1833 arch
1834 as
1835 cc
1836 objcc
1837 cpu
1838 cross_prefix
1839 custom_allocator
1840 dep_cc
1841 env
1842 extra_version
1843 host_cc
1844 host_cflags
1845 host_extralibs
1846 host_ld
1847 host_ldflags
1848 host_os
1849 ignore_tests
1850 ld
1851 logfile
1852 malloc_prefix
1853 nm
1854 optflags
1855 pkg_config
1856 pkg_config_flags
1857 random_seed
1858 samples
1859 sysinclude
1860 sysroot
1861 target_exec
1862 target_os
1863 target_path
1864 target_samples
1865 toolchain
1866 "
1867
1868 CMDLINE_APPEND="
1869 extra_cflags
1870 extra_objcflags
1871 host_cppflags
1872 "
1873
1874 # code dependency declarations
1875
1876 # architecture extensions
1877
1878 armv5te_deps="arm"
1879 armv6_deps="arm"
1880 armv6t2_deps="arm"
1881 armv8_deps="aarch64"
1882 neon_deps_any="aarch64 arm"
1883 intrinsics_neon_deps="neon"
1884 vfp_deps_any="aarch64 arm"
1885 vfpv3_deps="vfp"
1886
1887 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1888
1889 altivec_deps="ppc"
1890 ppc4xx_deps="ppc"
1891 vsx_deps="altivec"
1892 power8_deps="vsx"
1893
1894 cpunop_deps="i686"
1895 x86_64_select="i686"
1896 x86_64_suggest="fast_cmov"
1897
1898 amd3dnow_deps="mmx"
1899 amd3dnowext_deps="amd3dnow"
1900 i686_deps="x86"
1901 mmx_deps="x86"
1902 mmxext_deps="mmx"
1903 sse_deps="mmxext"
1904 sse2_deps="sse"
1905 sse3_deps="sse2"
1906 ssse3_deps="sse3"
1907 sse4_deps="ssse3"
1908 sse42_deps="sse4"
1909 avx_deps="sse42"
1910 xop_deps="avx"
1911 fma3_deps="avx"
1912 fma4_deps="avx"
1913 avx2_deps="avx"
1914
1915 mmx_external_deps="x86asm"
1916 mmx_inline_deps="inline_asm"
1917 mmx_suggest="mmx_external mmx_inline"
1918
1919 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1920 eval dep=\$${ext}_deps
1921 eval ${ext}_external_deps='"${dep}_external"'
1922 eval ${ext}_inline_deps='"${dep}_inline"'
1923 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1924 done
1925
1926 aligned_stack_if_any="aarch64 ppc x86"
1927 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1928 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1929 fast_unaligned_if_any="aarch64 ppc x86"
1930 simd_align_16_if_any="altivec neon sse"
1931 simd_align_32_if_any="avx"
1932
1933 # system capabilities
1934 symver_if_any="symver_asm_label symver_gnu_asm"
1935 valgrind_backtrace_conflict="optimizations"
1936 valgrind_backtrace_deps="valgrind_valgrind_h"
1937
1938 # threading support
1939 atomics_gcc_if="sync_val_compare_and_swap"
1940 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1941 atomics_win32_if="MemoryBarrier"
1942 atomics_native_if_any="$ATOMICS_LIST"
1943 w32threads_deps="atomics_native"
1944 threads_if_any="$THREADS_LIST"
1945
1946 # subsystems
1947 dct_select="rdft"
1948 dirac_parse_select="golomb"
1949 error_resilience_select="me_cmp"
1950 faandct_deps="faan fdctdsp"
1951 faanidct_deps="faan idctdsp"
1952 h264dsp_select="startcode"
1953 hevc_ps_select="golomb"
1954 intrax8_select="blockdsp idctdsp"
1955 mdct_select="fft"
1956 rdft_select="fft"
1957 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1958 mpeg_er_select="error_resilience"
1959 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1960 mpegaudiodsp_select="dct"
1961 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1962 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1963 vc1dsp_select="h264chroma qpeldsp startcode"
1964
1965 # decoders / encoders
1966 aac_decoder_select="imdct15 mdct sinewin"
1967 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1968 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1969 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1970 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1971 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1972 adpcm_g722_decoder_select="g722dsp"
1973 adpcm_g722_encoder_select="g722dsp"
1974 aic_decoder_select="golomb idctdsp"
1975 alac_encoder_select="lpc"
1976 als_decoder_select="bswapdsp"
1977 amrnb_decoder_select="lsp"
1978 amrwb_decoder_select="lsp"
1979 amv_decoder_select="sp5x_decoder"
1980 ape_decoder_select="bswapdsp"
1981 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1982 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1983 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1984 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1985 atrac1_decoder_select="mdct sinewin"
1986 atrac3_decoder_select="mdct"
1987 atrac3p_decoder_select="mdct sinewin"
1988 bink_decoder_select="blockdsp hpeldsp"
1989 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1990 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1991 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1992 cllc_decoder_select="bswapdsp"
1993 comfortnoise_encoder_select="lpc"
1994 cook_decoder_select="audiodsp mdct sinewin"
1995 cscd_decoder_select="lzo"
1996 cscd_decoder_suggest="zlib"
1997 dca_decoder_select="fmtconvert mdct"
1998 dds_decoder_select="texturedsp"
1999 dnxhd_decoder_select="blockdsp idctdsp"
2000 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2001 dvvideo_decoder_select="dvprofile idctdsp"
2002 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2003 dxa_decoder_deps="zlib"
2004 dxv_decoder_select="lzf texturedsp"
2005 eac3_decoder_select="ac3_decoder"
2006 eac3_encoder_select="ac3_encoder"
2007 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2008 eatgq_decoder_select="aandcttables idctdsp"
2009 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2010 exr_decoder_deps="zlib"
2011 ffv1_decoder_select="rangecoder"
2012 ffv1_encoder_select="rangecoder"
2013 ffvhuff_decoder_select="huffyuv_decoder"
2014 ffvhuff_encoder_select="huffyuv_encoder"
2015 fic_decoder_select="golomb"
2016 flac_decoder_select="flacdsp"
2017 flac_encoder_select="bswapdsp flacdsp lpc"
2018 flashsv_decoder_deps="zlib"
2019 flashsv_encoder_deps="zlib"
2020 flashsv2_decoder_deps="zlib"
2021 flv_decoder_select="h263_decoder"
2022 flv_encoder_select="h263_encoder"
2023 fourxm_decoder_select="blockdsp bswapdsp"
2024 fraps_decoder_select="bswapdsp huffman"
2025 g2m_decoder_deps="zlib"
2026 g2m_decoder_select="blockdsp idctdsp jpegtables"
2027 h261_decoder_select="mpeg_er mpegvideo"
2028 h261_encoder_select="aandcttables mpegvideoenc"
2029 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2030 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2031 h263i_decoder_select="h263_decoder"
2032 h263p_encoder_select="h263_encoder"
2033 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2034 h264_decoder_suggest="error_resilience"
2035 hap_decoder_select="snappy texturedsp"
2036 hap_encoder_deps="libsnappy"
2037 hap_encoder_select="texturedspenc"
2038 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2039 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2040 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2041 iac_decoder_select="imc_decoder"
2042 imc_decoder_select="bswapdsp fft mdct sinewin"
2043 indeo3_decoder_select="hpeldsp"
2044 indeo4_decoder_select="ividsp"
2045 indeo5_decoder_select="ividsp"
2046 interplay_video_decoder_select="hpeldsp"
2047 jpegls_decoder_select="mjpeg_decoder"
2048 jv_decoder_select="blockdsp"
2049 lagarith_decoder_select="huffyuvdsp"
2050 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2051 magicyuv_decoder_select="huffyuvdsp"
2052 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2053 metasound_decoder_select="lsp mdct sinewin"
2054 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2055 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2056 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2057 mjpegb_decoder_select="mjpeg_decoder"
2058 mlp_decoder_select="mlp_parser"
2059 motionpixels_decoder_select="bswapdsp"
2060 mp1_decoder_select="mpegaudio"
2061 mp1float_decoder_select="mpegaudio"
2062 mp2_decoder_select="mpegaudio"
2063 mp2float_decoder_select="mpegaudio"
2064 mp3_decoder_select="mpegaudio"
2065 mp3adu_decoder_select="mpegaudio"
2066 mp3adufloat_decoder_select="mpegaudio"
2067 mp3float_decoder_select="mpegaudio"
2068 mp3on4_decoder_select="mpegaudio"
2069 mp3on4float_decoder_select="mpegaudio"
2070 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2071 mpc8_decoder_select="mpegaudiodsp"
2072 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2073 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2074 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2075 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2076 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2077 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2078 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2079 mpeg4_encoder_select="h263_encoder"
2080 msa1_decoder_select="mss34dsp"
2081 msmpeg4v1_decoder_select="h263_decoder"
2082 msmpeg4v2_decoder_select="h263_decoder"
2083 msmpeg4v2_encoder_select="h263_encoder"
2084 msmpeg4v3_decoder_select="h263_decoder"
2085 msmpeg4v3_encoder_select="h263_encoder"
2086 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2087 mts2_decoder_select="mss34dsp"
2088 mxpeg_decoder_select="mjpeg_decoder"
2089 nellymoser_decoder_select="mdct sinewin"
2090 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2091 nuv_decoder_select="idctdsp lzo"
2092 on2avc_decoder_select="mdct"
2093 opus_decoder_deps="avresample"
2094 opus_decoder_select="imdct15"
2095 png_decoder_deps="zlib"
2096 png_encoder_deps="zlib"
2097 png_encoder_select="huffyuvencdsp"
2098 prores_decoder_select="idctdsp"
2099 prores_encoder_select="fdctdsp"
2100 qcelp_decoder_select="lsp"
2101 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2102 ra_144_encoder_select="audio_frame_queue lpc"
2103 ralf_decoder_select="golomb"
2104 rscc_decoder_deps="zlib"
2105 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2106 rv10_encoder_select="h263_encoder"
2107 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2108 rv20_encoder_select="h263_encoder"
2109 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2110 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2111 screenpresso_decoder_deps="zlib"
2112 sipr_decoder_select="lsp"
2113 sp5x_decoder_select="mjpeg_decoder"
2114 svq1_decoder_select="hpeldsp"
2115 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2116 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2117 svq3_decoder_suggest="zlib"
2118 tak_decoder_select="audiodsp"
2119 tdsc_decoder_deps="zlib"
2120 tdsc_decoder_select="mjpeg_decoder"
2121 theora_decoder_select="vp3_decoder"
2122 thp_decoder_select="mjpeg_decoder"
2123 tiff_decoder_suggest="zlib"
2124 tiff_encoder_suggest="zlib"
2125 truehd_decoder_select="mlp_decoder"
2126 truemotion2_decoder_select="bswapdsp"
2127 truespeech_decoder_select="bswapdsp"
2128 tscc_decoder_deps="zlib"
2129 txd_decoder_select="texturedsp"
2130 twinvq_decoder_select="mdct lsp sinewin"
2131 utvideo_decoder_select="bswapdsp"
2132 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2133 vble_decoder_select="huffyuvdsp"
2134 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2135 vc1image_decoder_select="vc1_decoder"
2136 vorbis_decoder_select="mdct"
2137 vorbis_encoder_select="mdct"
2138 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2139 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2140 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2141 vp6a_decoder_select="vp6_decoder"
2142 vp6f_decoder_select="vp6_decoder"
2143 vp7_decoder_select="h264pred videodsp vp8dsp"
2144 vp8_decoder_select="h264pred videodsp vp8dsp"
2145 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2146 webp_decoder_select="vp8_decoder"
2147 wmapro_decoder_select="mdct sinewin wma_freqs"
2148 wmav1_decoder_select="mdct sinewin wma_freqs"
2149 wmav1_encoder_select="mdct sinewin wma_freqs"
2150 wmav2_decoder_select="mdct sinewin wma_freqs"
2151 wmav2_encoder_select="mdct sinewin wma_freqs"
2152 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2153 wmv1_decoder_select="h263_decoder"
2154 wmv1_encoder_select="h263_encoder"
2155 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2156 wmv2_encoder_select="h263_encoder wmv2dsp"
2157 wmv3_decoder_select="vc1_decoder"
2158 wmv3image_decoder_select="wmv3_decoder"
2159 zerocodec_decoder_deps="zlib"
2160 zlib_decoder_deps="zlib"
2161 zlib_encoder_deps="zlib"
2162 zmbv_decoder_deps="zlib"
2163 zmbv_encoder_deps="zlib"
2164
2165 # hardware accelerators
2166 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2167 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2168 dxva2_lib_deps="dxva2"
2169 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2170 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2171
2172 h263_vaapi_hwaccel_deps="vaapi"
2173 h263_vaapi_hwaccel_select="h263_decoder"
2174 h264_d3d11va_hwaccel_deps="d3d11va"
2175 h264_d3d11va_hwaccel_select="h264_decoder"
2176 h264_dxva2_hwaccel_deps="dxva2"
2177 h264_dxva2_hwaccel_select="h264_decoder"
2178 h264_mmal_hwaccel_deps="mmal"
2179 h264_qsv_hwaccel_deps="libmfx"
2180 h264_vaapi_hwaccel_deps="vaapi"
2181 h264_vaapi_hwaccel_select="h264_decoder"
2182 h264_vda_hwaccel_deps="vda"
2183 h264_vda_hwaccel_select="h264_decoder"
2184 h264_vda_old_hwaccel_deps="vda"
2185 h264_vda_old_hwaccel_select="h264_decoder"
2186 h264_vdpau_hwaccel_deps="vdpau"
2187 h264_vdpau_hwaccel_select="h264_decoder"
2188 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2189 hevc_d3d11va_hwaccel_select="hevc_decoder"
2190 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2191 hevc_dxva2_hwaccel_select="hevc_decoder"
2192 hevc_qsv_hwaccel_deps="libmfx"
2193 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2194 hevc_vaapi_hwaccel_select="hevc_decoder"
2195 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2196 hevc_vdpau_hwaccel_select="hevc_decoder"
2197 mpeg1_vdpau_hwaccel_deps="vdpau"
2198 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2199 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2200 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2201 mpeg2_dxva2_hwaccel_deps="dxva2"
2202 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2203 mpeg2_mmal_hwaccel_deps="mmal"
2204 mpeg2_qsv_hwaccel_deps="libmfx"
2205 mpeg2_vaapi_hwaccel_deps="vaapi"
2206 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2207 mpeg2_vdpau_hwaccel_deps="vdpau"
2208 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2209 mpeg4_vaapi_hwaccel_deps="vaapi"
2210 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2211 mpeg4_vdpau_hwaccel_deps="vdpau"
2212 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2213 vc1_d3d11va_hwaccel_deps="d3d11va"
2214 vc1_d3d11va_hwaccel_select="vc1_decoder"
2215 vc1_dxva2_hwaccel_deps="dxva2"
2216 vc1_dxva2_hwaccel_select="vc1_decoder"
2217 vc1_mmal_hwaccel_deps="mmal"
2218 vc1_qsv_hwaccel_deps="libmfx"
2219 vc1_vaapi_hwaccel_deps="vaapi"
2220 vc1_vaapi_hwaccel_select="vc1_decoder"
2221 vc1_vdpau_hwaccel_deps="vdpau"
2222 vc1_vdpau_hwaccel_select="vc1_decoder"
2223 vp8_qsv_hwaccel_deps="libmfx"
2224 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2225 vp8_vaapi_hwaccel_select="vp8_decoder"
2226 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2227 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2228 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2229 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2230
2231 # hardware-accelerated codecs
2232 nvenc_deps_any="libdl LoadLibrary"
2233 omx_deps="libdl pthreads"
2234 omx_rpi_select="omx"
2235 qsvdec_select="qsv"
2236 qsvenc_select="qsv"
2237 vaapi_encode_deps="vaapi"
2238
2239 hwupload_cuda_filter_deps="cuda"
2240 scale_npp_filter_deps="cuda libnpp"
2241
2242 h264_mmal_decoder_deps="mmal"
2243 h264_nvenc_encoder_deps="nvenc"
2244 h264_omx_encoder_deps="omx"
2245 h264_qsv_decoder_deps="libmfx"
2246 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2247 h264_qsv_encoder_deps="libmfx"
2248 h264_qsv_encoder_select="qsvenc"
2249 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2250 h264_vaapi_encoder_select="vaapi_encode golomb"
2251 hevc_nvenc_encoder_deps="nvenc"
2252 hevc_qsv_decoder_deps="libmfx"
2253 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2254 hevc_qsv_encoder_deps="libmfx"
2255 hevc_qsv_encoder_select="hevc_ps qsvenc"
2256 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2257 hevc_vaapi_encoder_select="vaapi_encode golomb"
2258 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2259 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2260 mpeg2_mmal_decoder_deps="mmal"
2261 mpeg2_qsv_decoder_deps="libmfx"
2262 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2263 mpeg2_qsv_encoder_deps="libmfx"
2264 mpeg2_qsv_encoder_select="qsvenc"
2265 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2266 mpeg2_vaapi_encoder_select="vaapi_encode"
2267 mpeg4_omx_encoder_deps="omx"
2268 vc1_mmal_decoder_deps="mmal"
2269 vc1_qsv_decoder_deps="libmfx"
2270 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2271 vp8_qsv_decoder_deps="libmfx"
2272 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2273 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2274 vp8_vaapi_encoder_select="vaapi_encode"
2275
2276 nvenc_h264_encoder_select="h264_nvenc_encoder"
2277 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2278
2279 # parsers
2280 h264_parser_select="golomb h264dsp h264parse"
2281 hevc_parser_select="hevc_ps"
2282 mpegaudio_parser_select="mpegaudioheader"
2283 mpegvideo_parser_select="mpegvideo"
2284 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2285 vc1_parser_select="vc1dsp"
2286
2287 # bitstream_filters
2288 mjpeg2jpeg_bsf_select="jpegtables"
2289
2290 # external libraries
2291 avisynth_deps="LoadLibrary"
2292 avxsynth_deps="libdl"
2293 avisynth_demuxer_deps_any="avisynth avxsynth"
2294 avisynth_demuxer_select="riffdec"
2295 libdcadec_decoder_deps="libdcadec"
2296 libfaac_encoder_deps="libfaac"
2297 libfaac_encoder_select="audio_frame_queue"
2298 libfdk_aac_decoder_deps="libfdk_aac"
2299 libfdk_aac_encoder_deps="libfdk_aac"
2300 libfdk_aac_encoder_select="audio_frame_queue"
2301 libgsm_decoder_deps="libgsm"
2302 libgsm_encoder_deps="libgsm"
2303 libgsm_ms_decoder_deps="libgsm"
2304 libgsm_ms_encoder_deps="libgsm"
2305 libilbc_decoder_deps="libilbc"
2306 libilbc_encoder_deps="libilbc"
2307 libkvazaar_encoder_deps="libkvazaar"
2308 libmp3lame_encoder_deps="libmp3lame"
2309 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2310 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2311 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2312 libopencore_amrnb_encoder_select="audio_frame_queue"
2313 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2314 libopenh264_decoder_deps="libopenh264"
2315 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2316 libopenh264_encoder_deps="libopenh264"
2317 libopenjpeg_decoder_deps="libopenjpeg"
2318 libopenjpeg_encoder_deps="libopenjpeg"
2319 libopus_decoder_deps="libopus"
2320 libopus_encoder_deps="libopus"
2321 libopus_encoder_select="audio_frame_queue"
2322 libschroedinger_decoder_deps="libschroedinger"
2323 libschroedinger_encoder_deps="libschroedinger"
2324 libspeex_decoder_deps="libspeex"
2325 libspeex_encoder_deps="libspeex"
2326 libspeex_encoder_select="audio_frame_queue"
2327 libtheora_encoder_deps="libtheora"
2328 libtwolame_encoder_deps="libtwolame"
2329 libvo_aacenc_encoder_deps="libvo_aacenc"
2330 libvo_aacenc_encoder_select="audio_frame_queue"
2331 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2332 libvorbis_encoder_deps="libvorbis"
2333 libvorbis_encoder_select="audio_frame_queue"
2334 libvpx_vp8_decoder_deps="libvpx"
2335 libvpx_vp8_encoder_deps="libvpx"
2336 libvpx_vp9_decoder_deps="libvpx"
2337 libvpx_vp9_encoder_deps="libvpx"
2338 libwavpack_encoder_deps="libwavpack"
2339 libwavpack_encoder_select="audio_frame_queue"
2340 libwebp_encoder_deps="libwebp"
2341 libx262_encoder_deps="libx262"
2342 libx264_encoder_deps="libx264"
2343 libx265_encoder_deps="libx265"
2344 libxavs_encoder_deps="libxavs"
2345 libxvid_encoder_deps="libxvid mkstemp"
2346
2347 # demuxers / muxers
2348 ac3_demuxer_select="ac3_parser"
2349 asf_demuxer_select="riffdec"
2350 asf_muxer_select="riffenc"
2351 asf_stream_muxer_select="asf_muxer"
2352 avi_demuxer_select="iso_media riffdec"
2353 avi_muxer_select="riffenc"
2354 caf_demuxer_select="iso_media riffdec"
2355 dash_muxer_select="mp4_muxer"
2356 dirac_demuxer_select="dirac_parser"
2357 dv_demuxer_select="dvprofile"
2358 dv_muxer_select="dvprofile"
2359 dxa_demuxer_select="riffdec"
2360 eac3_demuxer_select="ac3_parser"
2361 f4v_muxer_select="mov_muxer"
2362 flac_demuxer_select="flac_parser"
2363 hds_muxer_select="flv_muxer"
2364 hls_muxer_select="mpegts_muxer"
2365 ipod_muxer_select="mov_muxer"
2366 ismv_muxer_select="mov_muxer"
2367 matroska_audio_muxer_select="matroska_muxer"
2368 matroska_demuxer_select="iso_media riffdec"
2369 matroska_demuxer_suggest="bzlib lzo zlib"
2370 matroska_muxer_select="iso_media riffenc"
2371 mmf_muxer_select="riffenc"
2372 mov_demuxer_select="iso_media riffdec"
2373 mov_demuxer_suggest="zlib"
2374 mov_muxer_select="iso_media riffenc rtpenc_chain"
2375 mp3_demuxer_select="mpegaudio_parser"
2376 mp3_muxer_select="mpegaudioheader"
2377 mp4_muxer_select="mov_muxer"
2378 mpegts_demuxer_select="iso_media"
2379 mpegts_muxer_select="adts_muxer latm_muxer"
2380 mpegtsraw_demuxer_select="mpegts_demuxer"
2381 mxf_d10_muxer_select="mxf_muxer"
2382 nut_muxer_select="riffenc"
2383 nuv_demuxer_select="riffdec"
2384 oga_muxer_select="ogg_muxer"
2385 ogg_demuxer_select="dirac_parse"
2386 opus_muxer_select="ogg_muxer"
2387 psp_muxer_select="mov_muxer"
2388 rtp_demuxer_select="sdp_demuxer"
2389 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2390 rtsp_demuxer_select="http_protocol rtpdec"
2391 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2392 sap_demuxer_select="sdp_demuxer"
2393 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2394 sdp_demuxer_select="rtpdec"
2395 smoothstreaming_muxer_select="ismv_muxer"
2396 spdif_muxer_select="aac_parser"
2397 spx_muxer_select="ogg_muxer"
2398 swf_demuxer_suggest="zlib"
2399 tak_demuxer_select="tak_parser"
2400 tg2_muxer_select="mov_muxer"
2401 tgp_muxer_select="mov_muxer"
2402 w64_demuxer_select="wav_demuxer"
2403 wav_demuxer_select="riffdec"
2404 wav_muxer_select="riffenc"
2405 webm_muxer_select="iso_media riffenc"
2406 wtv_demuxer_select="mpegts_demuxer riffdec"
2407 xmv_demuxer_select="riffdec"
2408 xwma_demuxer_select="riffdec"
2409
2410 # indevs / outdevs
2411 alsa_indev_deps="alsa"
2412 alsa_outdev_deps="alsa"
2413 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2414 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2415 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2416 dv1394_indev_deps="dv1394"
2417 dv1394_indev_select="dv_demuxer"
2418 fbdev_indev_deps="linux_fb_h"
2419 jack_indev_deps="jack"
2420 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2421 libcdio_indev_deps="libcdio"
2422 libdc1394_indev_deps="libdc1394"
2423 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2424 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2425 pulse_indev_deps="libpulse"
2426 sndio_indev_deps="sndio"
2427 sndio_outdev_deps="sndio"
2428 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2429 vfwcap_indev_deps="vfw32 vfwcap_defines"
2430 xcbgrab_indev_deps="libxcb libxcb_shape"
2431 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2432
2433 # protocols
2434 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2435 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2436 ffrtmpcrypt_protocol_select="tcp_protocol"
2437 ffrtmphttp_protocol_conflict="librtmp_protocol"
2438 ffrtmphttp_protocol_select="http_protocol"
2439 gopher_protocol_select="network"
2440 http_protocol_select="tcp_protocol"
2441 httpproxy_protocol_select="tcp_protocol"
2442 https_protocol_select="tls_protocol"
2443 icecast_protocol_select="http_protocol"
2444 librtmp_protocol_deps="librtmp"
2445 librtmpe_protocol_deps="librtmp"
2446 librtmps_protocol_deps="librtmp"
2447 librtmpt_protocol_deps="librtmp"
2448 librtmpte_protocol_deps="librtmp"
2449 mmsh_protocol_select="http_protocol"
2450 mmst_protocol_select="network"
2451 rtmp_protocol_conflict="librtmp_protocol"
2452 rtmp_protocol_select="tcp_protocol"
2453 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2454 rtmps_protocol_conflict="librtmp_protocol"
2455 rtmps_protocol_select="tls_protocol"
2456 rtmpt_protocol_select="ffrtmphttp_protocol"
2457 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2458 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2459 rtp_protocol_select="udp_protocol"
2460 sctp_protocol_deps="struct_sctp_event_subscribe"
2461 sctp_protocol_select="network"
2462 srtp_protocol_select="rtp_protocol srtp"
2463 tcp_protocol_select="network"
2464 tls_gnutls_protocol_deps="gnutls"
2465 tls_gnutls_protocol_select="tcp_protocol"
2466 tls_openssl_protocol_conflict="tls_gnutls_protocol"
2467 tls_openssl_protocol_deps="openssl"
2468 tls_openssl_protocol_select="tcp_protocol"
2469 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2470 udp_protocol_select="network"
2471 unix_protocol_deps="sys_un_h"
2472 unix_protocol_select="network"
2473
2474 # filters
2475 asyncts_filter_deps="avresample"
2476 blackframe_filter_deps="gpl"
2477 boxblur_filter_deps="gpl"
2478 bs2b_filter_deps="libbs2b"
2479 cropdetect_filter_deps="gpl"
2480 deinterlace_qsv_filter_deps="libmfx"
2481 deinterlace_vaapi_filter_deps="vaapi"
2482 delogo_filter_deps="gpl"
2483 drawtext_filter_deps="libfreetype"
2484 drawtext_filter_suggest="libfontconfig"
2485 frei0r_filter_deps="frei0r libdl"
2486 frei0r_src_filter_deps="frei0r libdl"
2487 hdcd_filter_deps="libhdcd"
2488 hqdn3d_filter_deps="gpl"
2489 interlace_filter_deps="gpl"
2490 movie_filter_deps="avcodec avformat"
2491 ocv_filter_deps="libopencv"
2492 resample_filter_deps="avresample"
2493 scale_filter_deps="swscale"
2494 scale_qsv_filter_deps="libmfx"
2495 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2496
2497 # examples
2498 decode_audio_example_deps="avcodec avutil"
2499 decode_video_example_deps="avcodec avutil"
2500 encode_audio_example_deps="avcodec avutil"
2501 encode_video_example_deps="avcodec avutil"
2502 filter_audio_example_deps="avfilter avutil"
2503 metadata_example_deps="avformat avutil"
2504 output_example_deps="avcodec avformat avresample avutil swscale"
2505 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2506 transcode_aac_example_deps="avcodec avformat avresample"
2507
2508 # EXTRALIBS_LIST
2509 cpu_init_extralibs="pthreads_extralibs"
2510 cws2fws_extralibs="zlib_extralibs"
2511
2512 # libraries, in linking order
2513 avcodec_deps="avutil"
2514 avcodec_select="null_bsf"
2515 avdevice_deps="avformat avcodec avutil"
2516 avfilter_deps="avutil"
2517 avformat_deps="avcodec avutil"
2518 avformat_suggest="network"
2519 avresample_deps="avutil"
2520 swscale_deps="avutil"
2521
2522 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2523 avdevice_extralibs="libm_extralibs"
2524 avformat_extralibs="libm_extralibs"
2525 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2526 avresample_extralibs="libm_extralibs"
2527 avutil_extralibs="clock_gettime_extralibs cuda_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2528 swscale_extralibs="libm_extralibs"
2529
2530 # programs
2531 avconv_deps="avcodec avfilter avformat avresample swscale"
2532 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2533 fps_filter null_filter resample_filter scale_filter
2534 trim_filter"
2535 avconv_suggest="dxva2_lib ole32 psapi shell32"
2536 avplay_deps="avcodec avfilter avformat avresample sdl"
2537 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2538 avplay_suggest="shell32"
2539 avprobe_deps="avcodec avformat"
2540 avprobe_suggest="shell32"
2541
2542 # documentation
2543 pod2man_deps="doc"
2544 texi2html_deps="doc"
2545
2546 # default parameters
2547
2548 logfile="avbuild/config.log"
2549
2550 # installation paths
2551 prefix_default="/usr/local"
2552 bindir_default='${prefix}/bin'
2553 datadir_default='${prefix}/share/avconv'
2554 docdir_default='${prefix}/share/doc/libav'
2555 incdir_default='${prefix}/include'
2556 libdir_default='${prefix}/lib'
2557 mandir_default='${prefix}/share/man'
2558 shlibdir_default="$libdir_default"
2559
2560 # toolchain
2561 ar_default="ar"
2562 cc_default="gcc"
2563 host_cc_default="gcc"
2564 ln_s="ln -s -f"
2565 nm_default="nm -g"
2566 objformat="elf"
2567 pkg_config_default=pkg-config
2568 ranlib="ranlib"
2569 strip="strip"
2570 version_script='--version-script'
2571 x86asmexe="yasm"
2572
2573 # machine
2574 arch_default=$(uname -m)
2575 cpu="generic"
2576 intrinsics="none"
2577
2578 # OS
2579 target_os_default=$(tolower $(uname -s))
2580 host_os=$target_os_default
2581
2582 # configurable options
2583 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2584
2585 enable asm
2586 enable debug
2587 enable doc
2588 enable faan faandct faanidct
2589 enable optimizations
2590 enable safe_bitstream_reader
2591 enable static
2592 enable swscale_alpha
2593 enable valgrind_backtrace
2594
2595 # By default, enable only those hwaccels that have no external dependencies.
2596 enable d3d11va dxva2 vda vdpau
2597
2598 # internal components are enabled by default
2599 enable $EXTRALIBS_LIST
2600
2601 # Avoid external, non-system, libraries getting enabled by dependency resolution
2602 disable $EXTERNAL_LIBRARY_LIST
2603
2604 # build settings
2605 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2606 LIBPREF="lib"
2607 LIBSUF=".a"
2608 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2609 SLIBPREF="lib"
2610 SLIBSUF=".so"
2611 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2612 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2613 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2614 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2615 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2616 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2617 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2618
2619 asflags_filter=echo
2620 cflags_filter=echo
2621 ldflags_filter=echo
2622
2623 AS_C='-c'
2624 AS_O='-o $@'
2625 CC_C='-c'
2626 CC_E='-E -o $@'
2627 CC_O='-o $@'
2628 OBJCC_C='-c'
2629 OBJCC_E='-E -o $@'
2630 OBJCC_O='-o $@'
2631 X86ASM_O='-o $@'
2632 LD_O='-o $@'
2633 LD_LIB='-l%'
2634 LD_PATH='-L'
2635 HOSTCC_C='-c'
2636 HOSTCC_E='-E -o $@'
2637 HOSTCC_O='-o $@'
2638 HOSTLD_O='-o $@'
2639
2640 host_extralibs='-lm'
2641 host_cflags_filter=echo
2642 host_ldflags_filter=echo
2643
2644 target_path='$(CURDIR)'
2645
2646 # since the object filename is not given with the -MM flag, the compiler
2647 # is only able to print the basename, and we must add the path ourselves
2648 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2649 DEPFLAGS='-MM'
2650
2651 mkdir -p avbuild
2652
2653 # find source path
2654 if test -f configure; then
2655 source_path=.
2656 else
2657 source_path=$(cd $(dirname "$0"); pwd)
2658 echo "$source_path" | grep -q '[[:blank:]]' &&
2659 die "Out of tree builds are impossible with whitespace in source path."
2660 test -e "$source_path/config.h" &&
2661 die "Out of tree builds are impossible with config.h in source dir."
2662 fi
2663
2664 for v in "$@"; do
2665 r=${v#*=}
2666 l=${v%"$r"}
2667 r=$(sh_quote "$r")
2668 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2669 done
2670
2671 find_things(){
2672 thing=$1
2673 pattern=$2
2674 file=$source_path/$3
2675 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2676 }
2677
2678 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2679 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2680 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2681 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2682 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2683 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2684 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2685 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2686 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2687
2688 find_things_extern(){
2689 thing=$1
2690 pattern=$2
2691 file=$source_path/$3
2692 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2693 }
2694
2695 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2696 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2697
2698 AVCODEC_COMPONENTS_LIST="
2699 $BSF_LIST
2700 $DECODER_LIST
2701 $ENCODER_LIST
2702 $HWACCEL_LIST
2703 $PARSER_LIST
2704 "
2705
2706 AVDEVICE_COMPONENTS_LIST="
2707 $INDEV_LIST
2708 $OUTDEV_LIST
2709 "
2710
2711 AVFILTER_COMPONENTS_LIST="
2712 $FILTER_LIST
2713 "
2714
2715 AVFORMAT_COMPONENTS_LIST="
2716 $DEMUXER_LIST
2717 $MUXER_LIST
2718 $PROTOCOL_LIST
2719 "
2720
2721 ALL_COMPONENTS="
2722 $AVCODEC_COMPONENTS_LIST
2723 $AVDEVICE_COMPONENTS_LIST
2724 $AVFILTER_COMPONENTS_LIST
2725 $AVFORMAT_COMPONENTS_LIST
2726 "
2727
2728 for n in $COMPONENT_LIST; do
2729 v=$(toupper ${n%s})_LIST
2730 eval enable \$$v
2731 eval ${n}_if_any="\$$v"
2732 done
2733
2734 enable $ARCH_EXT_LIST
2735
2736 die_unknown(){
2737 echo "Unknown option \"$1\"."
2738 echo "See $0 --help for available options."
2739 exit 1
2740 }
2741
2742 print_3_columns() {
2743 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2744 }
2745
2746 show_list() {
2747 suffix=_$1
2748 shift
2749 echo $* | sed s/$suffix//g | print_3_columns
2750 exit 0
2751 }
2752
2753 rand_list(){
2754 IFS=', '
2755 set -- $*
2756 unset IFS
2757 for thing; do
2758 comp=${thing%:*}
2759 prob=${thing#$comp}
2760 prob=${prob#:}
2761 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2762 echo "prob ${prob:-0.5}"
2763 printf '%s\n' $comp
2764 done
2765 }
2766
2767 do_random(){
2768 action=$1
2769 shift
2770 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2771 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2772 }
2773
2774 for opt do
2775 optval="${opt#*=}"
2776 case "$opt" in
2777 --extra-ldflags=*)
2778 add_ldflags $optval
2779 ;;
2780 --extra-ldexeflags=*)
2781 add_ldexeflags $optval
2782 ;;
2783 --extra-libs=*)
2784 add_extralibs $optval
2785 ;;
2786 --disable-devices)
2787 disable $INDEV_LIST $OUTDEV_LIST
2788 ;;
2789 --enable-debug=*)
2790 debuglevel="$optval"
2791 ;;
2792 --disable-programs)
2793 disable $PROGRAM_LIST
2794 ;;
2795 --disable-everything)
2796 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2797 ;;
2798 --disable-all)
2799 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2800 disable $LIBRARY_LIST $PROGRAM_LIST doc
2801 ;;
2802 --enable-random|--disable-random)
2803 action=${opt%%-random}
2804 do_random ${action#--} $COMPONENT_LIST
2805 ;;
2806 --enable-random=*|--disable-random=*)
2807 action=${opt%%-random=*}
2808 do_random ${action#--} $optval
2809 ;;
2810 --enable-*=*|--disable-*=*)
2811 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2812 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2813 eval list=\$$(toupper $thing)_LIST
2814 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2815 $action $(filter "$name" $list)
2816 ;;
2817 --enable-avserver|--disable-avserver*)
2818 warn "avserver has been removed, the ${opt} option is only"\
2819 "provided for compatibility and will be removed in the future"
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 # Die early if licensing-related configure options are incompatible.
2869 die_license_disabled() {
2870 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2871 }
2872
2873 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2874 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2875 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2876
2877 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2878
2879 # Disable all the library-specific components if the library itself
2880 # is disabled, see AVCODEC_LIST and following _LIST variables.
2881
2882 disable_components(){
2883 disabled ${1} && disable $(
2884 eval components="\$$(toupper ${1})_COMPONENTS"
2885 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2886 )
2887 }
2888
2889 map 'disable_components $v' $LIBRARY_LIST
2890
2891 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2892 set >> $logfile
2893
2894 case "$toolchain" in
2895 *-asan)
2896 cc_default="${toolchain%-asan}"
2897 add_cflags -fsanitize=address
2898 add_ldflags -fsanitize=address
2899 ;;
2900 *-msan)
2901 cc_default="${toolchain%-msan}"
2902 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2903 add_ldflags -fsanitize=memory
2904 ;;
2905 *-tsan)
2906 cc_default="${toolchain%-tsan}"
2907 add_cflags -fsanitize=thread -fPIE
2908 add_ldflags -fsanitize=thread -pie
2909 case "$toolchain" in
2910 gcc-tsan)
2911 add_cflags -fPIC
2912 add_ldflags -fPIC
2913 ;;
2914 esac
2915 ;;
2916 *-usan)
2917 cc_default="${toolchain%-usan}"
2918 add_cflags -fsanitize=undefined
2919 add_ldflags -fsanitize=undefined
2920 case "$toolchain" in
2921 clang-usan)
2922 add_cflags -O1
2923 ;;
2924 esac
2925 ;;
2926 valgrind-*)
2927 target_exec_default="valgrind"
2928 case "$toolchain" in
2929 valgrind-massif)
2930 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2931 ;;
2932 valgrind-memcheck)
2933 target_exec_args="--track-origins=yes --leak-check=full"
2934 ;;
2935 esac
2936 ;;
2937 msvc)
2938 # Check whether the current MSVC version needs the C99 converter.
2939 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2940 # support enough of C99 to build libav. Default to the new
2941 # behaviour if the regexp was unable to match anything, since this
2942 # successfully parses the version number of existing supported
2943 # versions that require the converter (MSVC 2010 and 2012).
2944 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2945 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2946 cc_default="cl"
2947 else
2948 cc_default="c99wrap cl"
2949 fi
2950 ld_default="$source_path/compat/windows/mslink"
2951 nm_default="dumpbin -symbols"
2952 ar_default="lib"
2953 case "$arch" in
2954 arm*)
2955 as_default="armasm"
2956 ;;
2957 esac
2958 target_os_default="win32"
2959 # Use a relative path for TMPDIR. This makes sure all the
2960 # ffconf temp files are written with a relative path, avoiding
2961 # issues with msys/win32 path conversion for MSVC parameters
2962 # such as -Fo<file> or -out:<file>.
2963 TMPDIR=.
2964 ;;
2965 icl)
2966 cc_default="icl"
2967 ld_default="xilink"
2968 nm_default="dumpbin -symbols"
2969 ar_default="xilib"
2970 target_os_default="win32"
2971 TMPDIR=.
2972 ;;
2973 gcov)
2974 add_cflags -fprofile-arcs -ftest-coverage
2975 add_ldflags -fprofile-arcs -ftest-coverage
2976 ;;
2977 llvm-cov)
2978 add_cflags -fprofile-arcs -ftest-coverage
2979 add_ldflags --coverage
2980 ;;
2981 hardened)
2982 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2983 add_cflags -fno-strict-overflow -fstack-protector-all
2984 add_ldflags -Wl,-z,relro -Wl,-z,now
2985 ;;
2986 ?*)
2987 die "Unknown toolchain $toolchain"
2988 ;;
2989 esac
2990
2991 test -n "$cross_prefix" && enable cross_compile
2992
2993 if enabled cross_compile; then
2994 test -n "$arch" && test -n "$target_os" ||
2995 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2996 fi
2997
2998 ar_default="${cross_prefix}${ar_default}"
2999 cc_default="${cross_prefix}${cc_default}"
3000 objcc_default="${cross_prefix}${objcc_default}"
3001 nm_default="${cross_prefix}${nm_default}"
3002 pkg_config_default="${cross_prefix}${pkg_config_default}"
3003 ranlib="${cross_prefix}${ranlib}"
3004 strip="${cross_prefix}${strip}"
3005
3006 sysinclude_default="${sysroot}/usr/include"
3007
3008 set_default arch cc pkg_config sysinclude target_exec target_os
3009 enabled cross_compile || host_cc_default=$cc
3010 set_default host_cc
3011
3012 if ! $pkg_config --version >/dev/null 2>&1; then
3013 warn "$pkg_config not found, library detection may fail."
3014 pkg_config=false
3015 fi
3016
3017 exesuf() {
3018 case $1 in
3019 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3020 esac
3021 }
3022
3023 EXESUF=$(exesuf $target_os)
3024 HOSTEXESUF=$(exesuf $host_os)
3025
3026 # set temporary file name
3027 : ${TMPDIR:=$TEMPDIR}
3028 : ${TMPDIR:=$TMP}
3029 : ${TMPDIR:=/tmp}
3030
3031 if ! check_cmd mktemp -u XXXXXX; then
3032 # simple replacement for missing mktemp
3033 # NOT SAFE FOR GENERAL USE
3034 mktemp(){
3035 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3036 echo "$tmpname"
3037 mkdir "$tmpname"
3038 }
3039 fi
3040
3041 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3042 die "Unable to create temporary directory in $TMPDIR."
3043
3044 tmpfile(){
3045 tmp="${AVTMPDIR}/test"$2
3046 (set -C; exec > $tmp) 2> /dev/null ||
3047 die "Unable to create temporary file in $AVTMPDIR."
3048 eval $1=$tmp
3049 }
3050
3051 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3052 trap 'exit 2' INT
3053
3054 tmpfile TMPASM .asm
3055 tmpfile TMPC .c
3056 tmpfile TMPE $EXESUF
3057 tmpfile TMPH .h
3058 tmpfile TMPO .o
3059 tmpfile TMPS .S
3060 tmpfile TMPSH .sh
3061 tmpfile TMPV .ver
3062
3063 unset -f mktemp
3064
3065 chmod +x $TMPE
3066
3067 # make sure we can execute files in $TMPDIR
3068 cat > $TMPSH 2>> $logfile <<EOF
3069 #! /bin/sh
3070 EOF
3071 chmod +x $TMPSH >> $logfile 2>&1
3072 if ! $TMPSH >> $logfile 2>&1; then
3073 cat <<EOF
3074 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3075 variable to another directory and make sure that it is not mounted noexec.
3076 EOF
3077 die "Sanity test failed."
3078 fi
3079
3080 armasm_flags(){
3081 for flag; do
3082 case $flag in
3083 # Filter out MSVC cl.exe options from cflags that shouldn't
3084 # be passed to gas-preprocessor
3085 -M[TD]*) ;;
3086 *) echo $flag ;;
3087 esac
3088 done
3089 }
3090
3091 ccc_flags(){
3092 for flag; do
3093 case $flag in
3094 -std=c99) echo -c99 ;;
3095 -mcpu=*) echo -arch ${flag#*=} ;;
3096 -mieee) echo -ieee ;;
3097 -O*|-fast) echo $flag ;;
3098 -fno-math-errno) echo -assume nomath_errno ;;
3099 -g) echo -g3 ;;
3100 -Wall) echo -msg_enable level2 ;;
3101 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3102 -Wl,*) echo $flag ;;
3103 -f*|-W*) ;;
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 $_cc -V 2>/dev/null | grep -q Compaq; then
3292 _type=ccc
3293 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3294 _DEPFLAGS='-M'
3295 _cflags_speed='-fast'
3296 _cflags_size='-O1'
3297 _flags_filter=ccc_flags
3298 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3299 test -d "$sysroot" || die "No valid sysroot specified."
3300 _type=armcc
3301 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3302 armcc_conf="$PWD/armcc.conf"
3303 $_cc --arm_linux_configure \
3304 --arm_linux_config_file="$armcc_conf" \
3305 --configure_sysroot="$sysroot" \
3306 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3307 die "Error creating armcc configuration file."
3308 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3309 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3310 as_default="${cross_prefix}gcc"
3311 _depflags='-MMD'
3312 _cflags_speed='-O3'
3313 _cflags_size='-Os'
3314 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3315 _type=tms470
3316 _ident=$($_cc -version | head -n1 | tr -s ' ')
3317 _flags='--gcc --abi=eabi -me'
3318 _cc_e='-ppl -fe=$@'
3319 _cc_o='-fe=$@'
3320 _depflags='-ppa -ppd=$(@:.o=.d)'
3321 _cflags_speed='-O3 -mf=5'
3322 _cflags_size='-O3 -mf=2'
3323 _flags_filter=tms470_flags
3324 elif $_cc -v 2>&1 | grep -q clang; then
3325 _type=clang
3326 _ident=$($_cc --version 2>/dev/null | head -n1)
3327 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3328 _cflags_speed='-O3'
3329 _cflags_size='-Os'
3330 elif $_cc -V 2>&1 | grep -q Sun; then
3331 _type=suncc
3332 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3333 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3334 _DEPFLAGS='-xM1 -xc99'
3335 _ldflags='-std=c99'
3336 _cflags_speed='-O5'
3337 _cflags_size='-O5 -xspace'
3338 _flags_filter=suncc_flags
3339 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3340 _type=pathscale
3341 _ident=$($_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'
3346 elif $_cc -v 2>&1 | grep -q Open64; then
3347 _type=open64
3348 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3349 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3350 _cflags_speed='-O2'
3351 _cflags_size='-Os'
3352 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3353 elif $_cc -V 2>&1 | grep -q Portland; then
3354 _type=pgi
3355 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3356 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3357 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3358 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3359 _cflags_noopt="-O1"
3360 _flags_filter=pgi_flags
3361 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3362 _type=armasm
3363 _ident=$($_cc | head -n1)
3364 # 4509: "This form of conditional instruction is deprecated"
3365 _flags="-nologo -ignore 4509"
3366 _flags_filter=armasm_flags
3367 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3368 _type=msvc
3369 _ident=$($_cc 2>&1 | head -n1)
3370 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3371 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3372 _cflags_speed="-O2"
3373 _cflags_size="-O1"
3374 _cflags_noopt="-O1"
3375 if $_cc -nologo- 2>&1 | grep -q Linker; then
3376 _ld_o='-out:$@'
3377 else
3378 _ld_o='-Fe$@'
3379 fi
3380 _cc_o='-Fo$@'
3381 _cc_e='-P -Fi$@'
3382 _flags_filter=msvc_flags
3383 _ld_lib='lib%.a'
3384 _ld_path='-libpath:'
3385 _flags='-nologo'
3386 elif $_cc 2>&1 | grep -q Intel; then
3387 _type=icl
3388 _ident=$($_cc 2>&1 | head -n1)
3389 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3390 # Not only is O3 broken on 13.x+ but it is slower on all previous
3391 # versions (tested) as well.
3392 _cflags_speed="-O2"
3393 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3394 if $_cc 2>&1 | grep -q Linker; then
3395 _ld_o='-out:$@'
3396 else
3397 _ld_o='-Fe$@'
3398 fi
3399 _cc_o='-Fo$@'
3400 _cc_e='-P'
3401 _flags_filter=icl_flags
3402 _ld_lib='lib%.a'
3403 _ld_path='-libpath:'
3404 # -Qdiag-error to make icl error when seeing certain unknown arguments
3405 _flags='-nologo -Qdiag-error:4044,10157'
3406 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3407 # with MSVC which enables it by default.
3408 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3409 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3410 # lld can emulate multiple different linkers; in ms link.exe mode,
3411 # the -? parameter gives the help output which contains an identifyable
3412 # string, while it gives an error in other modes.
3413 _type=lld-link
3414 # The link.exe mode doesn't have a switch for getting the version,
3415 # but we can force it back to gnu mode and get the version from there.
3416 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3417 _ld_o='-out:$@'
3418 _flags_filter=msvc_flags
3419 _ld_lib='lib%.a'
3420 _ld_path='-libpath:'
3421 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3422 _type=cparser
3423 _ident=$($_cc --version | head -n1)
3424 _depflags='-MMD'
3425 _cflags_speed='-O4'
3426 _cflags_size='-O2'
3427 _flags_filter=cparser_flags
3428 fi
3429
3430 eval ${pfx}_type=\$_type
3431 eval ${pfx}_ident=\$_ident
3432 }
3433
3434 set_ccvars(){
3435 eval ${1}_C=\${_cc_c-\${${1}_C}}
3436 eval ${1}_E=\${_cc_e-\${${1}_E}}
3437 eval ${1}_O=\${_cc_o-\${${1}_O}}
3438
3439 if [ -n "$_depflags" ]; then
3440 eval ${1}_DEPFLAGS=\$_depflags
3441 else
3442 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3443 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3444 eval DEP${1}FLAGS=\$_flags
3445 fi
3446 }
3447
3448 probe_cc cc "$cc"
3449 cflags_filter=$_flags_filter
3450 cflags_speed=$_cflags_speed
3451 cflags_size=$_cflags_size
3452 cflags_noopt=$_cflags_noopt
3453 add_cflags $_flags $_cflags
3454 cc_ldflags=$_ldflags
3455 set_ccvars CC
3456
3457 probe_cc hostcc "$host_cc"
3458 host_cflags_filter=$_flags_filter
3459 host_cflags_speed=$_cflags_speed
3460 add_host_cflags $_flags $_cflags
3461 set_ccvars HOSTCC
3462
3463 test -n "$cc_type" && enable $cc_type ||
3464 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3465
3466 : ${as_default:=$cc}
3467 : ${objcc_default:=$cc}
3468 : ${dep_cc_default:=$cc}
3469 : ${ld_default:=$cc}
3470 : ${host_ld_default:=$host_cc}
3471 set_default ar as objcc dep_cc ld host_ld
3472
3473 probe_cc as "$as"
3474 asflags_filter=$_flags_filter
3475 add_asflags $_flags $_cflags
3476 set_ccvars AS
3477
3478 probe_cc objcc "$objcc"
3479 objcflags_filter=$_flags_filter
3480 add_objcflags $_flags $_cflags
3481 set_ccvars OBJC
3482
3483 probe_cc ld "$ld"
3484 ldflags_filter=$_flags_filter
3485 add_ldflags $_flags $_ldflags
3486 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3487 LD_O=${_ld_o-$LD_O}
3488 LD_LIB=${_ld_lib-$LD_LIB}
3489 LD_PATH=${_ld_path-$LD_PATH}
3490
3491 probe_cc hostld "$host_ld"
3492 host_ldflags_filter=$_flags_filter
3493 add_host_ldflags $_flags $_ldflags
3494 HOSTLD_O=${_ld_o-$HOSTLD_O}
3495
3496 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3497 probe_cc depcc "$dep_cc"
3498 CCDEP=${_DEPCMD:-$DEPCMD}
3499 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3500 DEPCCFLAGS=$_flags
3501 fi
3502
3503 if $ar 2>&1 | grep -q Microsoft; then
3504 arflags="-nologo"
3505 ar_o='-out:$@'
3506 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3507 arflags="rq"
3508 ar_o='$@'
3509 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3510 arflags='-Xany -r -c'
3511 ar_o='$@'
3512 else
3513 arflags="rc"
3514 ar_o='$@'
3515 fi
3516
3517 add_cflags $extra_cflags
3518 add_objcflags $extra_objcflags
3519 add_asflags $extra_cflags
3520
3521 if test -n "$sysroot"; then
3522 case "$cc_type" in
3523 gcc|llvm_gcc|clang)
3524 add_cppflags --sysroot="$sysroot"
3525 add_ldflags --sysroot="$sysroot"
3526 ;;
3527 tms470)
3528 add_cppflags -I"$sysinclude"
3529 add_ldflags --sysroot="$sysroot"
3530 ;;
3531 esac
3532 fi
3533
3534 if test "$cpu" = host; then
3535 enabled cross_compile &&
3536 die "--cpu=host makes no sense when cross-compiling."
3537
3538 case "$cc_type" in
3539 gcc|llvm_gcc)
3540 check_native(){
3541 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3542 sed -n "/cc1.*$1=/{
3543 s/.*$1=\\([^ ]*\\).*/\\1/
3544 p
3545 q
3546 }" $TMPE
3547 }
3548 cpu=$(check_native -march || check_native -mcpu)
3549 ;;
3550 esac
3551
3552 test "${cpu:-host}" = host &&
3553 die "--cpu=host not supported with compiler $cc"
3554 fi
3555
3556 # Deal with common $arch aliases
3557 case "$arch" in
3558 aarch64|arm64)
3559 arch="aarch64"
3560 ;;
3561 arm*)
3562 arch="arm"
3563 ;;
3564 mips*|IP*)
3565 case "$arch" in
3566 *el)
3567 add_cppflags -EL
3568 add_ldflags -EL
3569 ;;
3570 *eb)
3571 add_cppflags -EB
3572 add_ldflags -EB
3573 ;;
3574 esac
3575 arch="mips"
3576 ;;
3577 parisc*|hppa*)
3578 arch="parisc"
3579 ;;
3580 "Power Macintosh"|ppc*|powerpc*)
3581 arch="ppc"
3582 ;;
3583 s390|s390x)
3584 arch="s390"
3585 ;;
3586 sh4|sh)
3587 arch="sh4"
3588 ;;
3589 sun4u|sparc*)
3590 arch="sparc"
3591 ;;
3592 tilegx|tile-gx)
3593 arch="tilegx"
3594 ;;
3595 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3596 arch="x86"
3597 ;;
3598 esac
3599
3600 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3601 enable $arch
3602
3603 # Add processor-specific flags
3604 if enabled aarch64; then
3605
3606 case $cpu in
3607 armv*)
3608 cpuflags="-march=$cpu"
3609 ;;
3610 *)
3611 cpuflags="-mcpu=$cpu"
3612 ;;
3613 esac
3614
3615 elif enabled alpha; then
3616
3617 cpuflags="-mcpu=$cpu"
3618
3619 elif enabled arm; then
3620
3621 check_arm_arch() {
3622 check_cpp_condition stddef.h \
3623 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3624 $cpuflags
3625 }
3626
3627 probe_arm_arch() {
3628 if check_arm_arch 4; then echo armv4
3629 elif check_arm_arch 4T; then echo armv4t
3630 elif check_arm_arch 5; then echo armv5
3631 elif check_arm_arch 5E; then echo armv5e
3632 elif check_arm_arch 5T; then echo armv5t
3633 elif check_arm_arch 5TE; then echo armv5te
3634 elif check_arm_arch 5TEJ; then echo armv5te
3635 elif check_arm_arch 6; then echo armv6
3636 elif check_arm_arch 6J; then echo armv6j
3637 elif check_arm_arch 6K; then echo armv6k
3638 elif check_arm_arch 6Z; then echo armv6z
3639 elif check_arm_arch 6ZK; then echo armv6zk
3640 elif check_arm_arch 6T2; then echo armv6t2
3641 elif check_arm_arch 7; then echo armv7
3642 elif check_arm_arch 7A 7_A; then echo armv7-a
3643 elif check_arm_arch 7S; then echo armv7-a
3644 elif check_arm_arch 7R 7_R; then echo armv7-r
3645 elif check_arm_arch 7M 7_M; then echo armv7-m
3646 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3647 elif check_arm_arch 8A 8_A; then echo armv8-a
3648 fi
3649 }
3650
3651 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3652
3653 case $cpu in
3654 armv*)
3655 cpuflags="-march=$cpu"
3656 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3657 ;;
3658 *)
3659 cpuflags="-mcpu=$cpu"
3660 case $cpu in
3661 cortex-a*) subarch=armv7a ;;
3662 cortex-r*) subarch=armv7r ;;
3663 cortex-m*) enable thumb; subarch=armv7m ;;
3664 arm11*) subarch=armv6 ;;
3665 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3666 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3667 *) subarch=$(probe_arm_arch) ;;
3668 esac
3669 ;;
3670 esac
3671
3672 case "$subarch" in
3673 armv5t*) enable fast_clz ;;
3674 armv[6-8]*) enable fast_clz fast_unaligned ;;
3675 esac
3676
3677 elif enabled avr32; then
3678
3679 case $cpu in
3680 ap7[02]0[0-2])
3681 subarch="avr32_ap"
3682 cpuflags="-mpart=$cpu"
3683 ;;
3684 ap)
3685 subarch="avr32_ap"
3686 cpuflags="-march=$cpu"
3687 ;;
3688 uc3[ab]*)
3689 subarch="avr32_uc"
3690 cpuflags="-mcpu=$cpu"
3691 ;;
3692 uc)
3693 subarch="avr32_uc"
3694 cpuflags="-march=$cpu"
3695 ;;
3696 esac
3697
3698 elif enabled bfin; then
3699
3700 cpuflags="-mcpu=$cpu"
3701
3702 elif enabled mips; then
3703
3704 cpuflags="-march=$cpu"
3705
3706 elif enabled ppc; then
3707
3708 disable ldbrx
3709
3710 case $(tolower $cpu) in
3711 601|ppc601|powerpc601)
3712 cpuflags="-mcpu=601"
3713 disable altivec
3714 ;;
3715 603*|ppc603*|powerpc603*)
3716 cpuflags="-mcpu=603"
3717 disable altivec
3718 ;;
3719 604*|ppc604*|powerpc604*)
3720 cpuflags="-mcpu=604"
3721 disable altivec
3722 ;;
3723 g3|75*|ppc75*|powerpc75*)
3724 cpuflags="-mcpu=750"
3725 disable altivec
3726 ;;
3727 g4|745*|ppc745*|powerpc745*)
3728 cpuflags="-mcpu=7450"
3729 disable vsx
3730 ;;
3731 74*|ppc74*|powerpc74*)
3732 cpuflags="-mcpu=7400"
3733 disable vsx
3734 ;;
3735 g5|970|ppc970|powerpc970)
3736 cpuflags="-mcpu=970"
3737 disable vsx
3738 ;;
3739 power[3-6]*)
3740 cpuflags="-mcpu=$cpu"
3741 disable vsx
3742 ;;
3743 power[7-8]*)
3744 cpuflags="-mcpu=$cpu"
3745 enable ldbrx
3746 ;;
3747 cell)
3748 cpuflags="-mcpu=cell"
3749 enable ldbrx
3750 disable vsx
3751 ;;
3752 e500mc)
3753 cpuflags="-mcpu=e500mc"
3754 disable altivec
3755 ;;
3756 e500v2)
3757 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3758 disable altivec
3759 disable dcbzl
3760 ;;
3761 e500)
3762 cpuflags="-mcpu=8540 -mhard-float"
3763 disable altivec
3764 disable dcbzl
3765 ;;
3766 esac
3767
3768 elif enabled sparc; then
3769
3770 case $cpu in
3771 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3772 cpuflags="-mcpu=$cpu"
3773 ;;
3774 ultrasparc*|niagara[234])
3775 cpuflags="-mcpu=$cpu"
3776 ;;
3777 esac
3778
3779 elif enabled x86; then
3780
3781 case $cpu in
3782 i[345]86|pentium)
3783 cpuflags="-march=$cpu"
3784 disable i686
3785 disable mmx
3786 ;;
3787 # targets that do NOT support nopl and conditional mov (cmov)
3788 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3789 cpuflags="-march=$cpu"
3790 disable i686
3791 ;;
3792 # targets that do support nopl and conditional mov (cmov)
3793 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3794 cpuflags="-march=$cpu"
3795 enable i686
3796 enable fast_cmov
3797 ;;
3798 # targets that do support conditional mov but on which it's slow
3799 pentium4|pentium4m|prescott|nocona)
3800 cpuflags="-march=$cpu"
3801 enable i686
3802 disable fast_cmov
3803 ;;
3804 esac
3805
3806 fi
3807
3808 if [ "$cpu" != generic ]; then
3809 add_cflags $cpuflags
3810 add_asflags $cpuflags
3811 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3812 fi
3813
3814 # compiler sanity check
3815 check_exec <<EOF
3816 int main(void){ return 0; }
3817 EOF
3818 if test "$?" != 0; then
3819 echo "$cc is unable to create an executable file."
3820 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3821 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3822 echo "Only do this if you know what cross compiling means."
3823 fi
3824 die "C compiler test failed."
3825 fi
3826
3827 add_cppflags -D_ISOC99_SOURCE
3828
3829 # some compilers silently accept -std=c11, so we also need to check that the
3830 # version macro is defined properly
3831 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3832 add_cflags -std=c11 ||
3833 check_cflags -std=c99
3834
3835 check_cppflags -D_FILE_OFFSET_BITS=64
3836 check_cppflags -D_LARGEFILE_SOURCE
3837
3838 add_host_cppflags -D_ISOC99_SOURCE
3839 check_host_cflags -std=c99
3840 check_host_cflags -Wall
3841 check_host_cflags $host_cflags_speed
3842
3843 check_64bit(){
3844 arch32=$1
3845 arch64=$2
3846 expr=$3
3847 check_code cc "" "int test[2*($expr) - 1]" &&
3848 subarch=$arch64 || subarch=$arch32
3849 }
3850
3851 case "$arch" in
3852 aarch64|alpha|ia64)
3853 spic=$shared
3854 ;;
3855 mips)
3856 check_64bit mips mips64 '_MIPS_SIM > 1'
3857 spic=$shared
3858 ;;
3859 parisc)
3860 check_64bit parisc parisc64 'sizeof(void *) > 4'
3861 spic=$shared
3862 ;;
3863 ppc)
3864 check_64bit ppc ppc64 'sizeof(void *) > 4'
3865 spic=$shared
3866 ;;
3867 s390)
3868 check_64bit s390 s390x 'sizeof(void *) > 4'
3869 spic=$shared
3870 ;;
3871 sparc)
3872 check_64bit sparc sparc64 'sizeof(void *) > 4'
3873 spic=$shared
3874 ;;
3875 x86)
3876 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3877 if test "$subarch" = "x86_64"; then
3878 spic=$shared
3879 fi
3880 ;;
3881 esac
3882
3883 enable $subarch
3884 enabled spic && enable_weak pic
3885
3886 # OS specific
3887 case $target_os in
3888 aix)
3889 SHFLAGS=-shared
3890 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3891 enabled shared && add_ldflags -Wl,-brtl
3892 ;;
3893 android)
3894 disable symver
3895 enable section_data_rel_ro
3896 SLIB_INSTALL_NAME='$(SLIBNAME)'
3897 SLIB_INSTALL_LINKS=
3898 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3899 ;;
3900 haiku)
3901 prefix_default="/boot/common"
3902 network_extralibs="-lnetwork"
3903 host_extralibs=
3904 ;;
3905 sunos)
3906 SHFLAGS='-shared -Wl,-h,$$(@F)'
3907 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3908 network_extralibs="-lsocket -lnsl"
3909 # When using suncc to build, the Solaris linker will mark
3910 # an executable with each instruction set encountered by
3911 # the Solaris assembler. As our libraries contain their own
3912 # guards for processor-specific code, instead suppress
3913 # generation of the HWCAPS ELF section on Solaris x86 only.
3914 enabled_all suncc x86 &&
3915 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3916 add_ldflags -Wl,-M,mapfile
3917 nm_default='nm -P -g'
3918 version_script='-M'
3919 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3920 ;;
3921 netbsd)
3922 disable symver
3923 oss_indev_extralibs="-lossaudio"
3924 oss_outdev_extralibs="-lossaudio"
3925 ;;
3926 openbsd|bitrig)
3927 disable symver
3928 SHFLAGS='-shared'
3929 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3930 SLIB_INSTALL_LINKS=
3931 oss_indev_extralibs="-lossaudio"
3932 oss_outdev_extralibs="-lossaudio"
3933 ;;
3934 dragonfly)
3935 disable symver
3936 ;;
3937 freebsd)
3938 ;;
3939 bsd/os)
3940 add_extralibs -lpoll -lgnugetopt
3941 ;;
3942 darwin)
3943 enabled ppc && add_asflags -force_cpusubtype_ALL
3944 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3945 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3946 add_ldflags -Wl,-dynamic,-search_paths_first
3947 SLIBSUF=".dylib"
3948 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3949 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3950 objformat="macho"
3951 enabled x86_64 && objformat="macho64"
3952 enabled_any pic shared ||
3953 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3954 check_header dispatch/dispatch.h &&
3955 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3956 ;;
3957 msys*)
3958 die "Native MSYS builds are discouraged, please use the MINGW environment."
3959 ;;
3960 mingw32*|mingw64*)
3961 if test $target_os = "mingw32ce"; then
3962 disable network
3963 else
3964 target_os=mingw32
3965 fi
3966 LIBTARGET=i386
3967 if enabled x86_64; then
3968 LIBTARGET="i386:x86-64"
3969 elif enabled arm; then
3970 LIBTARGET=arm-wince
3971 fi
3972 check_ldflags -Wl,--nxcompat
3973 check_ldflags -Wl,--dynamicbase
3974 shlibdir_default="$bindir_default"
3975 SLIBPREF=""
3976 SLIBSUF=".dll"
3977 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3978 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3979 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3980 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3981 SLIB_INSTALL_LINKS=
3982 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3983 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3984 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3985 objformat="win32"
3986 dlltool="${cross_prefix}dlltool"
3987 ranlib=:
3988 enable dos_paths
3989 ;;
3990 win32|win64)
3991 disable symver
3992 if enabled shared; then
3993 # Link to the import library instead of the normal static library
3994 # for shared libs.
3995 LD_LIB='%.lib'
3996 # Cannot build both shared and static libs with MSVC or icl.
3997 disable static
3998 fi
3999 shlibdir_default="$bindir_default"
4000 SLIBPREF=""
4001 SLIBSUF=".dll"
4002 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4003 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4004 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4005 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4006 SLIB_INSTALL_LINKS=
4007 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4008 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4009 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4010 objformat="win32"
4011 ranlib=:
4012 enable dos_paths
4013 ;;
4014 cygwin*)
4015 target_os=cygwin
4016 shlibdir_default="$bindir_default"
4017 SLIBPREF="cyg"
4018 SLIBSUF=".dll"
4019 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4020 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4021 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4022 SLIB_INSTALL_LINKS=
4023 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4024 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4025 objformat="win32"
4026 enable dos_paths
4027 ;;
4028 *-dos|freedos|opendos)
4029 network_extralibs="-lsocket"
4030 objformat="coff"
4031 enable dos_paths
4032 add_cppflags -U__STRICT_ANSI__
4033 ;;
4034 linux)
4035 enable dv1394
4036 enable section_data_rel_ro
4037 ;;
4038 irix*)
4039 target_os=irix
4040 ranlib="echo ignoring ranlib"
4041 ;;
4042 os/2*)
4043 ln_s="cp -f"
4044 objformat="aout"
4045 add_cppflags -D_GNU_SOURCE
4046 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4047 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4048 LIBSUF="_s.a"
4049 SLIBPREF=""
4050 SLIBSUF=".dll"
4051 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4052 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4053 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4054 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4055 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4056 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4057 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4058 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4059 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4060 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4061 enable dos_paths
4062 ;;
4063 gnu/kfreebsd)
4064 add_cppflags -D_BSD_SOURCE
4065 ;;
4066 gnu)
4067 ;;
4068 qnx)
4069 add_cppflags -D_QNX_SOURCE
4070 network_extralibs="-lsocket"
4071 ;;
4072 symbian)
4073 SLIBSUF=".dll"
4074 enable dos_paths
4075 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4076 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4077 add_ldflags -Wl,--target1-abs,--no-undefined \
4078 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4079 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4080 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4081 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4082 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4083 ;;
4084 osf1)
4085 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4086 ;;
4087 minix)
4088 ;;
4089 none)
4090 ;;
4091 *)
4092 die "Unknown OS '$target_os'."
4093 ;;
4094 esac
4095
4096 # determine libc flavour
4097
4098 probe_libc(){
4099 pfx=$1
4100 pfx_no_=${pfx%_}
4101 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4102 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4103 eval ${pfx}libc_type=uclibc
4104 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4105 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4106 eval ${pfx}libc_type=glibc
4107 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4108 # MinGW headers can be installed on Cygwin, so check for newlib first.
4109 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4110 eval ${pfx}libc_type=newlib
4111 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4112 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4113 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4114 eval ${pfx}libc_type=mingw64
4115 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4116 eval test \$${pfx_no_}cc_type = "gcc" &&
4117 add_${pfx}cppflags -D__printf__=__gnu_printf__
4118 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4119 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4120 eval ${pfx}libc_type=mingw32
4121 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4122 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4123 die "ERROR: MinGW32 runtime version must be >= 3.15."
4124 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4125 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4126 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4127 eval test \$${pfx_no_}cc_type = "gcc" &&
4128 add_${pfx}cppflags -D__printf__=__gnu_printf__
4129 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4130 eval ${pfx}libc_type=msvcrt
4131 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4132 if [ "$pfx" = host_ ]; then
4133 add_host_cppflags -Dsnprintf=_snprintf
4134 else
4135 add_compat strtod.o strtod=avpriv_strtod
4136 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4137 _snprintf=avpriv_snprintf \
4138 vsnprintf=avpriv_vsnprintf
4139 fi
4140 fi
4141 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4142 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4143 # 0x601 by default unless something else is set by the user.
4144 # This can easily lead to us detecting functions only present
4145 # in such new versions and producing binaries requiring windows 7.0.
4146 # Therefore explicitly set the default to XP unless the user has
4147 # set something else on the command line.
4148 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4149 # family. For these cases, configure is free to use any functions
4150 # found in the SDK headers by default. (Alternatively, we could force
4151 # _WIN32_WINNT to 0x0602 in that case.)
4152 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4153 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4154 #ifdef WINAPI_FAMILY
4155 #include <winapifamily.h>
4156 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4157 #error not desktop
4158 #endif
4159 #endif
4160 EOF
4161 if [ "$pfx" = "" ]; then
4162 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4163 fi
4164 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4165 eval ${pfx}libc_type=klibc
4166 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4167 eval ${pfx}libc_type=bionic
4168 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4169 eval ${pfx}libc_type=solaris
4170 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4171 else
4172 eval ${pfx}libc_type=default
4173 add_${pfx}cppflags -D_DEFAULT_SOURCE
4174 fi
4175 }
4176
4177 probe_libc
4178 test -n "$libc_type" && enable libc_$libc_type
4179 probe_libc host_
4180 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4181
4182 # hacks for compiler/libc/os combinations
4183
4184 case $libc_type in
4185 bionic)
4186 add_compat strtod.o strtod=avpriv_strtod
4187 ;;
4188 glibc)
4189 if enabled tms470; then
4190 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4191 add_cppflags -D__USER_LABEL_PREFIX__=
4192 add_cppflags -D__builtin_memset=memset
4193 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4194 add_cflags -pds=48 # incompatible redefinition of macro
4195 elif enabled ccc; then
4196 add_ldflags -Wl,-z,now # calls to libots crash without this
4197 fi
4198 ;;
4199 esac
4200
4201 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4202 add_cppflags '-I\$(SRC_PATH)/compat/float'
4203
4204 esc(){
4205 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4206 }
4207
4208 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4209
4210 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4211
4212 set_default $PATHS_LIST
4213 set_default nm
4214
4215 # we need to build at least one lib type
4216 if ! enabled_any static shared; then
4217 cat <<EOF
4218 At least one library type must be built.
4219 Specify --enable-static to build the static libraries or --enable-shared to
4220 build the shared libraries as well. To only build the shared libraries specify
4221 --disable-static in addition to --enable-shared.
4222 EOF
4223 exit 1
4224 fi
4225
4226 disabled optimizations || check_cflags -fomit-frame-pointer
4227
4228 enable_weak_pic() {
4229 disabled pic && return
4230 enable pic
4231 add_cppflags -DPIC
4232 case "$target_os" in
4233 mingw*|cygwin*)
4234 ;;
4235 *)
4236 add_cflags -fPIC
4237 ;;
4238 esac
4239 add_asflags -fPIC
4240 }
4241
4242 enabled pic && enable_weak_pic
4243
4244 check_cc <<EOF || die "Symbol mangling check failed."
4245 int ff_extern;
4246 EOF
4247 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4248 extern_prefix=${sym%%ff_extern*}
4249
4250 check_inline_asm inline_asm '"" ::'
4251
4252 _restrict=
4253 for restrict_keyword in restrict __restrict__ __restrict; do
4254 check_cc <<EOF && _restrict=$restrict_keyword && break
4255 void foo(char * $restrict_keyword p);
4256 EOF
4257 done
4258
4259 check_cc <<EOF && enable pragma_deprecated
4260 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4261 EOF
4262
4263 check_cc <<EOF && enable attribute_packed
4264 struct { int x; } __attribute__((packed)) x;
4265 EOF
4266
4267 check_cc <<EOF && enable attribute_may_alias
4268 union { int x; } __attribute__((may_alias)) x;
4269 EOF
4270
4271 check_cc <<EOF || die "endian test failed"
4272 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4273 EOF
4274 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4275
4276 check_gas() {
4277 log "check_gas using '$as' as AS"
4278 # :vararg is used on aarch64, arm and ppc altivec
4279 check_as <<EOF || return 1
4280 .macro m n, y:vararg=0
4281 \n: .int \y
4282 .endm
4283 m x
4284 EOF
4285 # .altmacro is only used in arm asm
4286 ! enabled arm || check_as <<EOF || return 1
4287 .altmacro
4288 EOF
4289 enable gnu_as
4290 return 0
4291 }
4292
4293 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4294 nogas=:
4295 enabled_any arm aarch64 && nogas=die
4296 enabled_all ppc altivec && nogas=warn
4297 as_noop=-v
4298
4299 case $as_type in
4300 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4301 gcc) gaspp_as_type=gas ;;
4302 *) gaspp_as_type=$as_type ;;
4303 esac
4304
4305 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4306
4307 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4308 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4309
4310 if ! check_gas ; then
4311 as=${gas:=$as}
4312 check_gas || \
4313 $nogas "GNU assembler not found, install/update gas-preprocessor"
4314 fi
4315
4316 check_as <<EOF && enable as_func
4317 .func test
4318 .endfunc
4319 EOF
4320 fi
4321
4322 check_inline_asm inline_asm_labels '"1:\n"'
4323
4324 if enabled aarch64; then
4325 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4326 # internal assembler in clang 3.3 does not support this instruction
4327 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4328 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4329
4330 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4331
4332 elif enabled alpha; then
4333
4334 check_cflags -mieee
4335
4336 elif enabled arm; then
4337
4338 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4339 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4340 enabled thumb && check_cflags -mthumb || check_cflags -marm
4341
4342 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4343 enable vfp_args
4344 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4345 enable vfp_args
4346 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4347 case "${cross_prefix:-$cc}" in
4348 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4349 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4350 __asm__ (".eabi_attribute 28, 1");
4351 int main(void) { return 0; }
4352 EOF
4353 esac
4354 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4355 fi
4356
4357 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4358 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4359 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4360 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4361 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4362 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4363
4364 [ $target_os = linux ] || [ $target_os = android ] ||
4365 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4366 $ARCH_EXT_LIST_ARM
4367
4368 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4369
4370 check_as <<EOF && enable as_dn_directive
4371 ra .dn d0.i16
4372 .unreq ra
4373 EOF
4374 check_as <<EOF && enable as_fpu_directive
4375 .fpu neon
4376 EOF
4377
4378 # llvm's integrated assembler supports .object_arch from llvm 3.5
4379 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4380 .object_arch armv4
4381 EOF
4382
4383 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4384
4385 elif enabled mips; then
4386
4387 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4388
4389 # make sure that only an instruction set is enabled
4390 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4391
4392 if enabled mips64; then