configure: Fix stupid typo in gsm.h header name
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-cuvid Nvidia CUVID video decode acceleration
241 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
243 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
244 --enable-libnpp Nvidia CUDA processing
245 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246 --enable-nvenc Nvidia video encoding
247 --enable-omx OpenMAX IL
248 --enable-omx-rpi OpenMAX IL for Raspberry Pi
249 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
250 --enable-vda Apple Video Decode Acceleration [auto]
251 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254 --arch=ARCH select architecture [$arch]
255 --cpu=CPU select the minimum required CPU (affects
256 instruction selection, may crash on older CPUs)
257 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
258 --enable-cross-compile assume a cross-compiler is used
259 --sysroot=PATH root of cross-build tree
260 --sysinclude=PATH location of cross-build system headers
261 --target-os=OS compiler targets OS [$target_os]
262 --target-exec=CMD command to run executables on target
263 --target-path=DIR path to view of build directory on target
264 --target-samples=DIR path to samples directory on target
265 --toolchain=NAME set tool defaults according to NAME
266 --nm=NM use nm tool
267 --ar=AR use archive tool AR [$ar_default]
268 --as=AS use assembler AS [$as_default]
269 --cc=CC use C compiler CC [$cc_default]
270 --objcc=OCC use ObjC compiler OCC [$cc_default]
271 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
272 --ld=LD use linker LD
273 --x86asmexe=X86ASM use x86 assembler X86ASM
274 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
275 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276 --host-cc=HOSTCC use host C compiler HOSTCC
277 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
278 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279 --host-ld=HOSTLD use host linker HOSTLD
280 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
281 --host-libs=HLIBS use libs HLIBS when linking for host
282 --host-os=OS compiler host OS [$target_os]
283 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
284 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
285 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288 --extra-libs=ELIBS add ELIBS [$ELIBS]
289 --extra-version=STRING version string suffix []
290 --optflags=OPTFLAGS override optimization-related compiler flags
291 --enable-pic build position-independent code
292 --enable-thumb compile for Thumb instruction set
293 --enable-lto use link-time optimization
294 --env="ENV=override" override the environment variables
295
296 Advanced options (experts only):
297 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
298 --custom-allocator=NAME use a supported custom allocator
299 --disable-symver disable symbol versioning
300 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301 --disable-safe-bitstream-reader
302 disable buffer boundary checking in bitreaders
303 (faster, but may crash)
304 --enable-sram allow use of on-chip SRAM
305
306 Optimization options (experts only):
307 --disable-asm disable all assembly optimizations
308 --disable-altivec disable AltiVec optimizations
309 --disable-vsx disable VSX optimizations
310 --disable-power8 disable POWER8 optimizations
311 --disable-amd3dnow disable 3DNow! optimizations
312 --disable-amd3dnowext disable 3DNow! extended optimizations
313 --disable-mmx disable MMX optimizations
314 --disable-mmxext disable MMXEXT optimizations
315 --disable-sse disable SSE optimizations
316 --disable-sse2 disable SSE2 optimizations
317 --disable-sse3 disable SSE3 optimizations
318 --disable-ssse3 disable SSSE3 optimizations
319 --disable-sse4 disable SSE4 optimizations
320 --disable-sse42 disable SSE4.2 optimizations
321 --disable-avx disable AVX optimizations
322 --disable-xop disable XOP optimizations
323 --disable-fma3 disable FMA3 optimizations
324 --disable-fma4 disable FMA4 optimizations
325 --disable-avx2 disable AVX2 optimizations
326 --disable-armv5te disable armv5te optimizations
327 --disable-armv6 disable armv6 optimizations
328 --disable-armv6t2 disable armv6t2 optimizations
329 --disable-vfp disable VFP optimizations
330 --disable-neon disable NEON optimizations
331 --disable-inline-asm disable use of inline assembly
332 --disable-x86asm disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335 --disable-debug disable debugging symbols
336 --enable-debug=LEVEL set the debug level [$debuglevel]
337 --disable-optimizations disable compiler optimizations
338 --enable-extra-warnings enable more compiler warnings
339 --samples=PATH location of test samples for FATE, if not set use
340 \$LIBAV_SAMPLES at make invocation time.
341 --enable-neon-clobber-test check NEON registers for clobbering (should be
342 used only for debugging purposes)
343 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344 should be used only for debugging purposes)
345 --enable-random randomly enable/disable components
346 --disable-random
347 --enable-random=LIST randomly enable/disable specific components or
348 --disable-random=LIST component groups. LIST is a comma-separated list
349 of NAME[:PROB] entries where NAME is a component
350 (group) and PROB the probability associated with
351 NAME (default 0.5).
352 --random-seed=VALUE seed value for --enable/disable-random
353 --disable-valgrind-backtrace do not print a backtrace under Valgrind
354 (only applies to --disable-optimizations builds)
355 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
356 in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360 exit 0
361 }
362
363 quotes='""'
364
365 log(){
366 echo "$@" >> $logfile
367 }
368
369 log_file(){
370 log BEGIN $1
371 i=1
372 while read line; do
373 printf '%5s %s\n' "${i}" "${line}"
374 i=$(($i+1))
375 done < $1 >> $logfile
376 log END $1
377 }
378
379 echolog(){
380 log "$@"
381 echo "$@"
382 }
383
384 warn(){
385 log "WARNING: $*"
386 WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390 echolog "$@"
391 cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git. If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397 if disabled logging; then
398 cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402 else
403 cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407 fi
408 exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421 echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425 v=$(echo "$1" | sed "s/'/'\\\\''/g")
426 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427 echo "$v"
428 }
429
430 cleanws(){
431 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
432 }
433
434 filter(){
435 pat=$1
436 shift
437 for v; do
438 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439 done
440 }
441
442 filter_out(){
443 pat=$1
444 shift
445 for v; do
446 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447 done
448 }
449
450 map(){
451 m=$1
452 shift
453 for v; do eval $m; done
454 }
455
456 add_suffix(){
457 suffix=$1
458 shift
459 for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463 value=$1
464 shift
465 for var in $*; do
466 eval $var=$value
467 done
468 }
469
470 set_weak(){
471 value=$1
472 shift
473 for var; do
474 eval : \${$var:=$value}
475 done
476 }
477
478 sanitize_var_name(){
479 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483 var=$1
484 shift
485 eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489 eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:=0}
495 eval ${pvar}_${level}="\$$pvar"
496 eval ${pvar}_level=$(($level+1))
497 done
498 }
499
500 popvar(){
501 for pvar in $*; do
502 eval level=\${${pvar}_level:-0}
503 test $level = 0 && continue
504 eval level=$(($level-1))
505 eval $pvar="\${${pvar}_${level}}"
506 eval ${pvar}_level=$level
507 eval unset ${pvar}_${level}
508 done
509 }
510
511 enable(){
512 set_all yes $*
513 }
514
515 disable(){
516 set_all no $*
517 }
518
519 enable_weak(){
520 set_weak yes $*
521 }
522
523 disable_weak(){
524 set_weak no $*
525 }
526
527 enable_sanitized(){
528 for var; do
529 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 disable_sanitized(){
534 for var; do
535 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536 done
537 }
538
539 do_enable_deep(){
540 for var; do
541 enabled $var && continue
542 eval sel="\$${var}_select"
543 eval sgs="\$${var}_suggest"
544 pushvar var sgs
545 enable_deep $sel
546 popvar sgs
547 enable_deep_weak $sgs
548 popvar var
549 done
550 }
551
552 enable_deep(){
553 do_enable_deep $*
554 enable $*
555 }
556
557 enable_deep_weak(){
558 for var; do
559 disabled $var && continue
560 pushvar var
561 do_enable_deep $var
562 popvar var
563 enable_weak $var
564 done
565 }
566
567 enabled(){
568 test "${1#!}" = "$1" && op== || op=!=
569 eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573 test "${1#!}" = "$1" && op== || op=!=
574 eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578 for opt; do
579 enabled $opt || return 1
580 done
581 }
582
583 disabled_all(){
584 for opt; do
585 disabled $opt || return 1
586 done
587 }
588
589 enabled_any(){
590 for opt; do
591 enabled $opt && return 0
592 done
593 }
594
595 disabled_any(){
596 for opt; do
597 disabled $opt && return 0
598 done
599 return 1
600 }
601
602 set_default(){
603 for opt; do
604 eval : \${$opt:=\$${opt}_default}
605 done
606 }
607
608 is_in(){
609 value=$1
610 shift
611 for var in $*; do
612 [ $var = $value ] && return 0
613 done
614 return 1
615 }
616
617 check_deps(){
618 for cfg; do
619 enabled ${cfg}_checking && die "Circular dependency for $cfg."
620 disabled ${cfg}_checking && continue
621 enable ${cfg}_checking
622
623 eval dep_all="\$${cfg}_deps"
624 eval dep_any="\$${cfg}_deps_any"
625 eval dep_con="\$${cfg}_conflict"
626 eval dep_sel="\$${cfg}_select"
627 eval dep_sgs="\$${cfg}_suggest"
628 eval dep_ifa="\$${cfg}_if"
629 eval dep_ifn="\$${cfg}_if_any"
630
631 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637 enabled_all $dep_all || disable $cfg
638 enabled_any $dep_any || disable $cfg
639 disabled_all $dep_con || disable $cfg
640 disabled_any $dep_sel && disable $cfg
641
642 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645 # filter out library deps, these do not belong in extralibs
646 is_in $dep $LIBRARY_LIST && continue
647 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648 done
649
650 disable ${cfg}_checking
651 done
652 }
653
654 print_config(){
655 pfx=$1
656 files=$2
657 shift 2
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
660 {
661 c = \"$pfx\" toupper(\$1);
662 v = \$2;
663 sub(/yes/, 1, v);
664 sub(/no/, 0, v);
665 for (f in files) {
666 file = files[f];
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
674 }
675 }
676 }"
677 }
678
679 print_enabled(){
680 suf=$1
681 shift
682 for v; do
683 enabled $v && printf "%s\n" ${v%$suf}
684 done
685 }
686
687 append(){
688 var=$1
689 shift
690 eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694 var=$1
695 shift
696 eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700 var=$1
701 uniq_list=""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
704 done
705 eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709 var=$1
710 tmpvar=
711 for entry in $(eval echo \$$var); do
712 tmpvar="$tmpvar $(eval echo \$${entry})"
713 done
714 eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718 append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722 append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726 append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730 append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734 append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738 append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742 append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746 append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750 append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754 prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758 append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762 append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766 append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770 append compat_objs $1
771 shift
772 map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776 log "$@"
777 "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781 eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785 eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789 log check_cc "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796 log check_objcc "$@"
797 cat > $TMPC
798 log_file $TMPC
799 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803 log check_cpp "$@"
804 cat > $TMPC
805 log_file $TMPC
806 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810 eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814 log check_as "$@"
815 cat > $TMPS
816 log_file $TMPS
817 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821 log check_inline_asm "$@"
822 name="$1"
823 code="$2"
824 shift 2
825 disable $name
826 check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832 log check_insn "$@"
833 check_inline_asm ${1}_inline "\"$2\""
834 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838 log check_x86asm "$@"
839 echo "$1" > $TMPS
840 log_file $TMPS
841 shift 1
842 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846 eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850 log check_ld "$@"
851 flags=$(filter_out '-l*' "$@")
852 libs=$(filter '-l*' "$@")
853 check_cc $($cflags_filter $flags) || return
854 flags=$($ldflags_filter $flags)
855 libs=$($ldflags_filter $libs)
856 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860 hdr=$1
861 test "${hdr%.h}" = "${hdr}" &&
862 echo "#include $hdr" ||
863 echo "#include <$hdr>"
864 }
865
866 check_code(){
867 log check_code "$@"
868 check=$1
869 headers=$2
870 code=$3
871 shift 3
872 {
873 for hdr in $headers; do
874 print_include $hdr
875 done
876 echo "int main(void) { $code; return 0; }"
877 } | check_$check "$@"
878 }
879
880 check_cppflags(){
881 log check_cppflags "$@"
882 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888 log test_cflags "$@"
889 set -- $($cflags_filter "$@")
890 check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896 log check_cflags "$@"
897 test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901 log test_objcflags "$@"
902 set -- $($objcflags_filter "$@")
903 check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909 log check_objcflags "$@"
910 test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914 log test_ldflags "$@"
915 check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921 log check_ldflags "$@"
922 test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926 log test_stripflags "$@"
927 # call check_cc to get a fresh TMPO
928 check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931 check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935 log check_stripflags "$@"
936 test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940 log check_header "$@"
941 header=$1
942 shift
943 disable_sanitized $header
944 check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951 log check_func "$@"
952 func=$1
953 shift
954 disable $func
955 check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962 log check_mathfunc "$@"
963 func=$1
964 narg=$2
965 shift 2
966 test $narg = 2 && args="f, g" || args="f"
967 disable $func
968 check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976 log check_func_headers "$@"
977 headers=$1
978 funcs=$2
979 shift 2
980 {
981 for hdr in $headers; do
982 print_include $hdr
983 done
984 for func in $funcs; do
985 echo "long check_$func(void) { return (long) $func; }"
986 done
987 echo "int main(void) { return 0; }"
988 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992 log check_cpp_condition "$@"
993 header=$1
994 condition=$2
995 shift 2
996 check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005 log test_cflags_cpp "$@"
1006 flags=$1
1007 condition=$2
1008 shift 2
1009 set -- $($cflags_filter "$flags")
1010 check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018 log check_lib "$@"
1019 name="$1"
1020 headers="$2"
1021 funcs="$3"
1022 shift 3
1023 disable $name
1024 check_func_headers "$headers" "$funcs" "$@" &&
1025 enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 test_pkg_config(){
1029 log test_pkg_config "$@"
1030 name="$1"
1031 pkg_version="$2"
1032 pkg="${2%% *}"
1033 headers="$3"
1034 funcs="$4"
1035 shift 4
1036 disable $name
1037 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041 enable $name &&
1042 set_sanitized "${name}_cflags" $pkg_cflags &&
1043 set_sanitized "${name}_extralibs" $pkg_libs
1044 }
1045
1046 check_pkg_config(){
1047 log check_pkg_config "$@"
1048 name="$1"
1049 test_pkg_config "$@" &&
1050 eval add_cflags \$${name}_cflags
1051 }
1052
1053 check_exec(){
1054 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1055 }
1056
1057 check_exec_crash(){
1058 log check_exec_crash "$@"
1059 code=$(cat)
1060
1061 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1062 # are safe but may not be available everywhere. Thus we use
1063 # raise(SIGTERM) instead. The check is run in a subshell so we
1064 # can redirect the "Terminated" message from the shell. SIGBUS
1065 # is not defined by standard C so it is used conditionally.
1066
1067 (check_exec "$@") >> $logfile 2>&1 <<EOF
1068 #include <signal.h>
1069 static void sighandler(int sig){
1070 raise(SIGTERM);
1071 }
1072 int foo(void){
1073 $code
1074 }
1075 int (*func_ptr)(void) = foo;
1076 int main(void){
1077 signal(SIGILL, sighandler);
1078 signal(SIGFPE, sighandler);
1079 signal(SIGSEGV, sighandler);
1080 #ifdef SIGBUS
1081 signal(SIGBUS, sighandler);
1082 #endif
1083 return func_ptr();
1084 }
1085 EOF
1086 }
1087
1088 check_type(){
1089 log check_type "$@"
1090 headers=$1
1091 type=$2
1092 shift 2
1093 disable_sanitized "$type"
1094 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1095 }
1096
1097 check_struct(){
1098 log check_struct "$@"
1099 headers=$1
1100 struct=$2
1101 member=$3
1102 shift 3
1103 disable_sanitized "${struct}_${member}"
1104 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1105 enable_sanitized "${struct}_${member}"
1106 }
1107
1108 check_builtin(){
1109 log check_builtin "$@"
1110 name=$1
1111 headers=$2
1112 builtin=$3
1113 shift 3
1114 disable "$name"
1115 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1116 }
1117
1118 check_compile_assert(){
1119 log check_compile_assert "$@"
1120 name=$1
1121 headers=$2
1122 condition=$3
1123 shift 3
1124 disable "$name"
1125 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1126 }
1127
1128 require(){
1129 log require "$@"
1130 name_version="$1"
1131 name="${1%% *}"
1132 headers="$2"
1133 func="$3"
1134 shift 3
1135 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1136 }
1137
1138 require_header(){
1139 log require "$@"
1140 header="$1"
1141 shift
1142 check_header "$header" "$@" || die "ERROR: $header not found"
1143 }
1144
1145 require_cpp_condition(){
1146 log require "$@"
1147 header="$1"
1148 condition="$2"
1149 shift 2
1150 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1151 }
1152
1153 require_pkg_config(){
1154 log require_pkg_config "$@"
1155 pkg_version="$2"
1156 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1157 }
1158
1159 hostcc_e(){
1160 eval printf '%s\\n' $HOSTCC_E
1161 }
1162
1163 hostcc_o(){
1164 eval printf '%s\\n' $HOSTCC_O
1165 }
1166
1167 check_host_cc(){
1168 log check_host_cc "$@"
1169 cat > $TMPC
1170 log_file $TMPC
1171 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1172 }
1173
1174 check_host_cpp(){
1175 log check_host_cpp "$@"
1176 cat > $TMPC
1177 log_file $TMPC
1178 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1179 }
1180
1181 check_host_cppflags(){
1182 log check_host_cppflags "$@"
1183 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1184 #include <stdlib.h>;
1185 EOF
1186 }
1187
1188 check_host_cflags(){
1189 log check_host_cflags "$@"
1190 set -- $($host_cflags_filter "$@")
1191 check_host_cc "$@" <<EOF && append host_cflags "$@"
1192 int x;
1193 EOF
1194 }
1195
1196 check_host_cpp_condition(){
1197 log check_host_cpp_condition "$@"
1198 header=$1
1199 condition=$2
1200 shift 2
1201 check_host_cpp "$@" <<EOF
1202 #include <$header>
1203 #if !($condition)
1204 #error "unsatisfied condition: $condition"
1205 #endif
1206 EOF
1207 }
1208
1209 apply(){
1210 file=$1
1211 shift
1212 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1213 }
1214
1215 cp_if_changed(){
1216 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1217 mkdir -p "$(dirname $2)"
1218 cp -f "$1" "$2"
1219 }
1220
1221 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1222 # system-dependent things.
1223
1224 AVCODEC_COMPONENTS="
1225 bsfs
1226 decoders
1227 encoders
1228 hwaccels
1229 parsers
1230 "
1231
1232 AVDEVICE_COMPONENTS="
1233 indevs
1234 outdevs
1235 "
1236 AVFILTER_COMPONENTS="
1237 filters
1238 "
1239 AVFORMAT_COMPONENTS="
1240 demuxers
1241 muxers
1242 protocols
1243 "
1244
1245 COMPONENT_LIST="
1246 $AVCODEC_COMPONENTS
1247 $AVDEVICE_COMPONENTS
1248 $AVFILTER_COMPONENTS
1249 $AVFORMAT_COMPONENTS
1250 "
1251
1252 EXAMPLE_LIST="
1253 decode_audio_example
1254 decode_video_example
1255 encode_audio_example
1256 encode_video_example
1257 filter_audio_example
1258 metadata_example
1259 output_example
1260 qsvdec_example
1261 transcode_aac_example
1262 "
1263
1264 # catchall list of things that require external libs to link
1265 EXTRALIBS_LIST="
1266 cpu_init
1267 cws2fws
1268 "
1269
1270 HWACCEL_LIBRARY_NONFREE_LIST="
1271 cuda
1272 cuvid
1273 libnpp
1274 "
1275 HWACCEL_LIBRARY_LIST="
1276 $HWACCEL_LIBRARY_NONFREE_LIST
1277 d3d11va
1278 dxva2
1279 libmfx
1280 mmal
1281 nvenc
1282 omx
1283 vaapi
1284 vda
1285 vdpau
1286 "
1287
1288 EXTERNAL_LIBRARY_GPL_LIST="
1289 libcdio
1290 libx264
1291 libx265
1292 libxavs
1293 libxvid
1294 "
1295
1296 EXTERNAL_LIBRARY_NONFREE_LIST="
1297 libfaac
1298 libfdk_aac
1299 openssl
1300 "
1301
1302 EXTERNAL_LIBRARY_VERSION3_LIST="
1303 libopencore_amrnb
1304 libopencore_amrwb
1305 libvo_aacenc
1306 libvo_amrwbenc
1307 "
1308
1309 EXTERNAL_LIBRARY_LIST="
1310 $EXTERNAL_LIBRARY_GPL_LIST
1311 $EXTERNAL_LIBRARY_NONFREE_LIST
1312 $EXTERNAL_LIBRARY_VERSION3_LIST
1313 avisynth
1314 avxsynth
1315 frei0r
1316 gnutls
1317 libbs2b
1318 libdc1394
1319 libdcadec
1320 libfontconfig
1321 libfreetype
1322 libgsm
1323 libhdcd
1324 libilbc
1325 libjack
1326 libkvazaar
1327 libmp3lame
1328 libopencv
1329 libopenh264
1330 libopenjpeg
1331 libopus
1332 libpulse
1333 librtmp
1334 libschroedinger
1335 libsnappy
1336 libspeex
1337 libtheora
1338 libtwolame
1339 libvorbis
1340 libvpx
1341 libwavpack
1342 libwebp
1343 libxcb
1344 libxcb_shm
1345 libxcb_xfixes
1346 "
1347
1348 SYSTEM_LIBRARY_LIST="
1349 bzlib
1350 zlib
1351 "
1352
1353 FEATURE_LIST="
1354 gray
1355 hardcoded_tables
1356 omx_rpi
1357 runtime_cpudetect
1358 safe_bitstream_reader
1359 shared
1360 small
1361 sram
1362 static
1363 swscale_alpha
1364 "
1365
1366 LIBRARY_LIST="
1367 avcodec
1368 avdevice
1369 avfilter
1370 avformat
1371 avresample
1372 avutil
1373 swscale
1374 "
1375
1376 LICENSE_LIST="
1377 gpl
1378 nonfree
1379 version3
1380 "
1381
1382 PROGRAM_LIST="
1383 avconv
1384 avplay
1385 avprobe
1386 "
1387
1388 SUBSYSTEM_LIST="
1389 dct
1390 doc
1391 error_resilience
1392 faan
1393 fft
1394 lsp
1395 lzo
1396 mdct
1397 network
1398 rdft
1399 "
1400
1401 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1402 CONFIG_LIST="
1403 $EXAMPLE_LIST
1404 $EXTERNAL_LIBRARY_LIST
1405 $HWACCEL_LIBRARY_LIST
1406 $FEATURE_LIST
1407 $LICENSE_LIST
1408 $LIBRARY_LIST
1409 $PROGRAM_LIST
1410 $SUBSYSTEM_LIST
1411 $SYSTEM_LIBRARY_LIST
1412 neon_clobber_test
1413 pic
1414 pod2man
1415 texi2html
1416 thumb
1417 valgrind_backtrace
1418 xmm_clobber_test
1419 $COMPONENT_LIST
1420 "
1421
1422 THREADS_LIST="
1423 pthreads
1424 w32threads
1425 "
1426
1427 ATOMICS_LIST="
1428 atomics_gcc
1429 atomics_suncc
1430 atomics_win32
1431 "
1432
1433 ARCH_LIST="
1434 aarch64
1435 alpha
1436 arm
1437 avr32
1438 avr32_ap
1439 avr32_uc
1440 bfin
1441 ia64
1442 m68k
1443 mips
1444 mips64
1445 parisc
1446 ppc
1447 ppc64
1448 s390
1449 sh4
1450 sparc
1451 sparc64
1452 tilegx
1453 tilepro
1454 tomi
1455 x86
1456 x86_32
1457 x86_64
1458 "
1459
1460 ARCH_EXT_LIST_ARM="
1461 armv5te
1462 armv6
1463 armv6t2
1464 armv8
1465 neon
1466 vfp
1467 vfpv3
1468 "
1469
1470 ARCH_EXT_LIST_X86_SIMD="
1471 amd3dnow
1472 amd3dnowext
1473 avx
1474 avx2
1475 fma3
1476 fma4
1477 mmx
1478 mmxext
1479 sse
1480 sse2
1481 sse3
1482 sse4
1483 sse42
1484 ssse3
1485 xop
1486 "
1487
1488 ARCH_EXT_LIST_PPC="
1489 altivec
1490 dcbzl
1491 ldbrx
1492 power8
1493 ppc4xx
1494 vsx
1495 "
1496
1497 ARCH_EXT_LIST_X86="
1498 $ARCH_EXT_LIST_X86_SIMD
1499 cpunop
1500 i686
1501 "
1502
1503 ARCH_EXT_LIST_MIPS="
1504 loongson
1505 mips32r1
1506 mips64r1
1507 mips32r2
1508 mips64r2
1509 mips32r6
1510 mips64r6
1511 "
1512
1513 ARCH_EXT_LIST="
1514 $ARCH_EXT_LIST_ARM
1515 $ARCH_EXT_LIST_MIPS
1516 $ARCH_EXT_LIST_PPC
1517 $ARCH_EXT_LIST_X86
1518 vis
1519 "
1520
1521 ARCH_FEATURES="
1522 aligned_stack
1523 fast_64bit
1524 fast_clz
1525 fast_cmov
1526 local_aligned_8
1527 local_aligned_16
1528 local_aligned_32
1529 simd_align_16
1530 simd_align_32
1531 "
1532
1533 BUILTIN_LIST="
1534 atomic_cas_ptr
1535 machine_rw_barrier
1536 MemoryBarrier
1537 mm_empty
1538 rdtsc
1539 sem_timedwait
1540 sync_val_compare_and_swap
1541 "
1542 HAVE_LIST_CMDLINE="
1543 inline_asm
1544 symver
1545 x86asm
1546 "
1547
1548 HAVE_LIST_PUB="
1549 bigendian
1550 fast_unaligned
1551 "
1552
1553 HEADERS_LIST="
1554 AVFoundation_AVFoundation_h
1555 arpa_inet_h
1556 cdio_paranoia_h
1557 cdio_paranoia_paranoia_h
1558 dispatch_dispatch_h
1559 dev_bktr_ioctl_bt848_h
1560 dev_bktr_ioctl_meteor_h
1561 dev_ic_bt8xx_h
1562 dev_video_bktr_ioctl_bt848_h
1563 dev_video_meteor_ioctl_meteor_h
1564 direct_h
1565 dxgidebug_h
1566 dxva_h
1567 io_h
1568 mach_mach_time_h
1569 machine_ioctl_bt848_h
1570 machine_ioctl_meteor_h
1571 malloc_h
1572 poll_h
1573 stdatomic_h
1574 sys_param_h
1575 sys_resource_h
1576 sys_select_h
1577 sys_soundcard_h
1578 sys_time_h
1579 sys_un_h
1580 sys_videoio_h
1581 unistd_h
1582 valgrind_valgrind_h
1583 windows_h
1584 winsock2_h
1585 "
1586
1587 INTRINSICS_LIST="
1588 intrinsics_neon
1589 "
1590
1591 MATH_FUNCS="
1592 atanf
1593 atan2f
1594 cbrtf
1595 cosf
1596 exp2
1597 exp2f
1598 expf
1599 isinf
1600 isnan
1601 ldexpf
1602 llrint
1603 llrintf
1604 log2
1605 log2f
1606 log10f
1607 lrint
1608 lrintf
1609 powf
1610 rint
1611 round
1612 roundf
1613 sinf
1614 trunc
1615 truncf
1616 "
1617
1618 SYSTEM_FUNCS="
1619 aligned_malloc
1620 clock_gettime
1621 closesocket
1622 CommandLineToArgvW
1623 CryptGenRandom
1624 fcntl
1625 getaddrinfo
1626 gethrtime
1627 getopt
1628 GetProcessAffinityMask
1629 GetProcessMemoryInfo
1630 GetProcessTimes
1631 getrusage
1632 GetSystemTimeAsFileTime
1633 gettimeofday
1634 gmtime_r
1635 inet_aton
1636 isatty
1637 localtime_r
1638 mach_absolute_time
1639 MapViewOfFile
1640 memalign
1641 mmap
1642 mprotect
1643 nanosleep
1644 posix_memalign
1645 sched_getaffinity
1646 SetConsoleTextAttribute
1647 setmode
1648 setrlimit
1649 Sleep
1650 strerror_r
1651 sysconf
1652 sysctl
1653 usleep
1654 VirtualAlloc
1655 "
1656
1657 TOOLCHAIN_FEATURES="
1658 as_arch_directive
1659 as_fpu_directive
1660 as_func
1661 as_object_arch
1662 asm_mod_q
1663 blocks_extension
1664 ebp_available
1665 ebx_available
1666 gnu_as
1667 ibm_asm
1668 inline_asm_labels
1669 pragma_deprecated
1670 symver_asm_label
1671 symver_gnu_asm
1672 vfp_args
1673 xform_asm
1674 xmm_clobbers
1675 "
1676
1677 TYPES_LIST="
1678 CONDITION_VARIABLE_Ptr
1679 CUVIDDECODECREATEINFO_bitDepthMinus8
1680 socklen_t
1681 struct_addrinfo
1682 struct_group_source_req
1683 struct_ip_mreq_source
1684 struct_ipv6_mreq
1685 struct_pollfd
1686 struct_rusage_ru_maxrss
1687 struct_sockaddr_in6
1688 struct_sockaddr_sa_len
1689 struct_sockaddr_storage
1690 struct_v4l2_frmivalenum_discrete
1691 "
1692
1693 HAVE_LIST="
1694 $ARCH_EXT_LIST
1695 $(add_suffix _external $ARCH_EXT_LIST)
1696 $(add_suffix _inline $ARCH_EXT_LIST)
1697 $ARCH_FEATURES
1698 $BUILTIN_LIST
1699 $HAVE_LIST_CMDLINE
1700 $HAVE_LIST_PUB
1701 $HEADERS_LIST
1702 $INTRINSICS_LIST
1703 $MATH_FUNCS
1704 $SYSTEM_FUNCS
1705 $THREADS_LIST
1706 $TOOLCHAIN_FEATURES
1707 $TYPES_LIST
1708 dos_paths
1709 libc_msvcrt
1710 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1711 sdl
1712 section_data_rel_ro
1713 threads
1714 uwp
1715 vaapi_drm
1716 vaapi_x11
1717 vdpau_x11
1718 "
1719
1720 # options emitted with CONFIG_ prefix but not available on the command line
1721 CONFIG_EXTRA="
1722 aandcttables
1723 ac3dsp
1724 adts_header
1725 audio_frame_queue
1726 audiodsp
1727 blockdsp
1728 bswapdsp
1729 cabac
1730 cbs
1731 cbs_h264
1732 cbs_h265
1733 cbs_mpeg2
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 hevcparse
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 qsvvpp
1782 rangecoder
1783 riffdec
1784 riffenc
1785 rtpdec
1786 rtpenc_chain
1787 rv34dsp
1788 sinewin
1789 snappy
1790 srtp
1791 startcode
1792 texturedsp
1793 texturedspenc
1794 tpeldsp
1795 vaapi_encode
1796 vc1dsp
1797 videodsp
1798 vp3dsp
1799 vp56dsp
1800 vp8dsp
1801 wma_freqs
1802 wmv2dsp
1803 "
1804
1805 CMDLINE_SELECT="
1806 $ARCH_EXT_LIST
1807 $CONFIG_LIST
1808 $HAVE_LIST_CMDLINE
1809 $THREADS_LIST
1810 asm
1811 cross_compile
1812 debug
1813 extra_warnings
1814 logging
1815 lto
1816 optimizations
1817 rpath
1818 "
1819
1820 PATHS_LIST="
1821 bindir
1822 datadir
1823 docdir
1824 incdir
1825 libdir
1826 mandir
1827 prefix
1828 shlibdir
1829 "
1830
1831 CMDLINE_SET="
1832 $PATHS_LIST
1833 ar
1834 arch
1835 as
1836 cc
1837 objcc
1838 cpu
1839 cross_prefix
1840 custom_allocator
1841 dep_cc
1842 env
1843 extra_version
1844 host_cc
1845 host_cflags
1846 host_extralibs
1847 host_ld
1848 host_ldflags
1849 host_os
1850 ignore_tests
1851 ld
1852 logfile
1853 malloc_prefix
1854 nm
1855 optflags
1856 pkg_config
1857 pkg_config_flags
1858 random_seed
1859 samples
1860 sysinclude
1861 sysroot
1862 target_exec
1863 target_os
1864 target_path
1865 target_samples
1866 toolchain
1867 x86asmexe
1868 "
1869
1870 CMDLINE_APPEND="
1871 extra_cflags
1872 extra_objcflags
1873 host_cppflags
1874 "
1875
1876 # code dependency declarations
1877
1878 # architecture extensions
1879
1880 armv5te_deps="arm"
1881 armv6_deps="arm"
1882 armv6t2_deps="arm"
1883 armv8_deps="aarch64"
1884 neon_deps_any="aarch64 arm"
1885 intrinsics_neon_deps="neon"
1886 vfp_deps_any="aarch64 arm"
1887 vfpv3_deps="vfp"
1888
1889 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1890
1891 altivec_deps="ppc"
1892 dcbzl_deps="ppc"
1893 ldbrx_deps="ppc"
1894 ppc4xx_deps="ppc"
1895 vsx_deps="altivec"
1896 power8_deps="vsx"
1897
1898 loongson_deps="mips"
1899 mips32r1_deps="mips32"
1900 mips32r2_deps="mips32"
1901 mips32r6_deps="mips32"
1902 mips64r1_deps="mips64"
1903 mips64r2_deps="mips64"
1904 mips64r6_deps="mips64"
1905
1906 vis_deps="sparc"
1907
1908 cpunop_deps="i686"
1909 x86_64_select="i686"
1910 x86_64_suggest="fast_cmov"
1911
1912 amd3dnow_deps="mmx"
1913 amd3dnowext_deps="amd3dnow"
1914 i686_deps="x86"
1915 mmx_deps="x86"
1916 mmxext_deps="mmx"
1917 sse_deps="mmxext"
1918 sse2_deps="sse"
1919 sse3_deps="sse2"
1920 ssse3_deps="sse3"
1921 sse4_deps="ssse3"
1922 sse42_deps="sse4"
1923 avx_deps="sse42"
1924 xop_deps="avx"
1925 fma3_deps="avx"
1926 fma4_deps="avx"
1927 avx2_deps="avx"
1928
1929 mmx_external_deps="x86asm"
1930 mmx_inline_deps="inline_asm x86"
1931 mmx_suggest="mmx_external mmx_inline"
1932
1933 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1934 eval dep=\$${ext}_deps
1935 eval ${ext}_external_deps='"${dep}_external"'
1936 eval ${ext}_inline_deps='"${dep}_inline"'
1937 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1938 done
1939
1940 aligned_stack_if_any="aarch64 ppc x86"
1941 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1942 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1943 fast_unaligned_if_any="aarch64 ppc x86"
1944 simd_align_16_if_any="altivec neon sse"
1945 simd_align_32_if_any="avx"
1946
1947 # system capabilities
1948 symver_if_any="symver_asm_label symver_gnu_asm"
1949 valgrind_backtrace_conflict="optimizations"
1950 valgrind_backtrace_deps="valgrind_valgrind_h"
1951
1952 # threading support
1953 atomics_gcc_if="sync_val_compare_and_swap"
1954 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1955 atomics_win32_if="MemoryBarrier"
1956 atomics_native_if_any="$ATOMICS_LIST"
1957 w32threads_deps="atomics_native"
1958 threads_if_any="$THREADS_LIST"
1959
1960 # subsystems
1961 cbs_h264_select="cbs golomb"
1962 cbs_h265_select="cbs golomb"
1963 cbs_mpeg2_select="cbs"
1964 dct_select="rdft"
1965 dirac_parse_select="golomb"
1966 error_resilience_select="me_cmp"
1967 faandct_deps="faan"
1968 faandct_select="fdctdsp"
1969 faanidct_deps="faan"
1970 faanidct_select="idctdsp"
1971 h264dsp_select="startcode"
1972 hevcparse_select="golomb"
1973 intrax8_select="blockdsp idctdsp"
1974 mdct_select="fft"
1975 rdft_select="fft"
1976 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1977 mpeg_er_select="error_resilience"
1978 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1979 mpegaudiodsp_select="dct"
1980 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1981 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1982 vc1dsp_select="h264chroma qpeldsp startcode"
1983
1984 # decoders / encoders
1985 aac_decoder_select="adts_header imdct15 mdct sinewin"
1986 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1987 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1988 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1989 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1990 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1991 adpcm_g722_decoder_select="g722dsp"
1992 adpcm_g722_encoder_select="g722dsp"
1993 aic_decoder_select="golomb idctdsp"
1994 alac_encoder_select="lpc"
1995 als_decoder_select="bswapdsp"
1996 amrnb_decoder_select="lsp"
1997 amrwb_decoder_select="lsp"
1998 amv_decoder_select="sp5x_decoder"
1999 ape_decoder_select="bswapdsp"
2000 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2001 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2002 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2003 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2004 atrac1_decoder_select="mdct sinewin"
2005 atrac3_decoder_select="mdct"
2006 atrac3p_decoder_select="mdct sinewin"
2007 bink_decoder_select="blockdsp hpeldsp"
2008 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2009 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2010 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2011 clearvideo_decoder_select="idctdsp"
2012 cllc_decoder_select="bswapdsp"
2013 comfortnoise_encoder_select="lpc"
2014 cook_decoder_select="audiodsp mdct sinewin"
2015 cscd_decoder_select="lzo"
2016 cscd_decoder_suggest="zlib"
2017 dca_decoder_select="fmtconvert mdct"
2018 dds_decoder_select="texturedsp"
2019 dnxhd_decoder_select="blockdsp idctdsp"
2020 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2021 dvvideo_decoder_select="dvprofile idctdsp"
2022 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2023 dxa_decoder_deps="zlib"
2024 dxv_decoder_select="lzf texturedsp"
2025 eac3_decoder_select="ac3_decoder"
2026 eac3_encoder_select="ac3_encoder"
2027 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2028 eatgq_decoder_select="aandcttables idctdsp"
2029 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2030 exr_decoder_deps="zlib"
2031 ffv1_decoder_select="rangecoder"
2032 ffv1_encoder_select="rangecoder"
2033 ffvhuff_decoder_select="huffyuv_decoder"
2034 ffvhuff_encoder_select="huffyuv_encoder"
2035 fic_decoder_select="golomb"
2036 flac_decoder_select="flacdsp"
2037 flac_encoder_select="bswapdsp flacdsp lpc"
2038 flashsv_decoder_deps="zlib"
2039 flashsv_encoder_deps="zlib"
2040 flashsv2_decoder_deps="zlib"
2041 flv_decoder_select="h263_decoder"
2042 flv_encoder_select="h263_encoder"
2043 fourxm_decoder_select="blockdsp bswapdsp"
2044 fraps_decoder_select="bswapdsp huffman"
2045 g2m_decoder_deps="zlib"
2046 g2m_decoder_select="blockdsp idctdsp jpegtables"
2047 h261_decoder_select="mpeg_er mpegvideo"
2048 h261_encoder_select="aandcttables mpegvideoenc"
2049 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2050 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2051 h263i_decoder_select="h263_decoder"
2052 h263p_encoder_select="h263_encoder"
2053 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2054 h264_decoder_suggest="error_resilience"
2055 hap_decoder_select="snappy texturedsp"
2056 hap_encoder_deps="libsnappy"
2057 hap_encoder_select="texturedspenc"
2058 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2059 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2060 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2061 iac_decoder_select="imc_decoder"
2062 imc_decoder_select="bswapdsp fft mdct sinewin"
2063 indeo3_decoder_select="hpeldsp"
2064 indeo4_decoder_select="ividsp"
2065 indeo5_decoder_select="ividsp"
2066 interplay_video_decoder_select="hpeldsp"
2067 jpegls_decoder_select="mjpeg_decoder"
2068 jv_decoder_select="blockdsp"
2069 lagarith_decoder_select="huffyuvdsp"
2070 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2071 magicyuv_decoder_select="huffyuvdsp"
2072 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2073 metasound_decoder_select="lsp mdct sinewin"
2074 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2075 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2076 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2077 mjpegb_decoder_select="mjpeg_decoder"
2078 mlp_decoder_select="mlp_parser"
2079 motionpixels_decoder_select="bswapdsp"
2080 mp1_decoder_select="mpegaudio"
2081 mp1float_decoder_select="mpegaudio"
2082 mp2_decoder_select="mpegaudio"
2083 mp2float_decoder_select="mpegaudio"
2084 mp3_decoder_select="mpegaudio"
2085 mp3adu_decoder_select="mpegaudio"
2086 mp3adufloat_decoder_select="mpegaudio"
2087 mp3float_decoder_select="mpegaudio"
2088 mp3on4_decoder_select="mpegaudio"
2089 mp3on4float_decoder_select="mpegaudio"
2090 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2091 mpc8_decoder_select="mpegaudiodsp"
2092 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2093 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2094 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2095 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2096 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2097 mpeg4_encoder_select="h263_encoder"
2098 msa1_decoder_select="mss34dsp"
2099 msmpeg4v1_decoder_select="h263_decoder"
2100 msmpeg4v2_decoder_select="h263_decoder"
2101 msmpeg4v2_encoder_select="h263_encoder"
2102 msmpeg4v3_decoder_select="h263_decoder"
2103 msmpeg4v3_encoder_select="h263_encoder"
2104 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2105 mts2_decoder_select="mss34dsp"
2106 mxpeg_decoder_select="mjpeg_decoder"
2107 nellymoser_decoder_select="mdct sinewin"
2108 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2109 nuv_decoder_select="idctdsp lzo"
2110 on2avc_decoder_select="mdct"
2111 opus_decoder_deps="avresample"
2112 opus_decoder_select="imdct15"
2113 png_decoder_deps="zlib"
2114 png_encoder_deps="zlib"
2115 png_encoder_select="huffyuvencdsp"
2116 prores_decoder_select="idctdsp"
2117 prores_encoder_select="fdctdsp"
2118 qcelp_decoder_select="lsp"
2119 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2120 ra_144_encoder_select="audio_frame_queue lpc"
2121 ralf_decoder_select="golomb"
2122 rscc_decoder_deps="zlib"
2123 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2124 rv10_encoder_select="h263_encoder"
2125 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2126 rv20_encoder_select="h263_encoder"
2127 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2128 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2129 screenpresso_decoder_deps="zlib"
2130 sipr_decoder_select="lsp"
2131 sp5x_decoder_select="mjpeg_decoder"
2132 svq1_decoder_select="hpeldsp"
2133 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2134 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2135 svq3_decoder_suggest="zlib"
2136 tak_decoder_select="audiodsp"
2137 tdsc_decoder_deps="zlib"
2138 tdsc_decoder_select="mjpeg_decoder"
2139 theora_decoder_select="vp3_decoder"
2140 thp_decoder_select="mjpeg_decoder"
2141 tiff_decoder_suggest="zlib"
2142 tiff_encoder_suggest="zlib"
2143 truehd_decoder_select="mlp_decoder"
2144 truemotion2_decoder_select="bswapdsp"
2145 truespeech_decoder_select="bswapdsp"
2146 tscc_decoder_deps="zlib"
2147 txd_decoder_select="texturedsp"
2148 twinvq_decoder_select="mdct lsp sinewin"
2149 utvideo_decoder_select="bswapdsp huffyuvdsp"
2150 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2151 vble_decoder_select="huffyuvdsp"
2152 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2153 vc1image_decoder_select="vc1_decoder"
2154 vorbis_decoder_select="mdct"
2155 vorbis_encoder_select="mdct"
2156 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2157 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2158 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2159 vp6a_decoder_select="vp6_decoder"
2160 vp6f_decoder_select="vp6_decoder"
2161 vp7_decoder_select="h264pred videodsp vp8dsp"
2162 vp8_decoder_select="h264pred videodsp vp8dsp"
2163 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2164 webp_decoder_select="vp8_decoder"
2165 wmapro_decoder_select="mdct sinewin wma_freqs"
2166 wmav1_decoder_select="mdct sinewin wma_freqs"
2167 wmav1_encoder_select="mdct sinewin wma_freqs"
2168 wmav2_decoder_select="mdct sinewin wma_freqs"
2169 wmav2_encoder_select="mdct sinewin wma_freqs"
2170 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2171 wmv1_decoder_select="h263_decoder"
2172 wmv1_encoder_select="h263_encoder"
2173 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2174 wmv2_encoder_select="h263_encoder wmv2dsp"
2175 wmv3_decoder_select="vc1_decoder"
2176 wmv3image_decoder_select="wmv3_decoder"
2177 zerocodec_decoder_deps="zlib"
2178 zlib_decoder_deps="zlib"
2179 zlib_encoder_deps="zlib"
2180 zmbv_decoder_deps="zlib"
2181 zmbv_encoder_deps="zlib"
2182
2183 # hardware accelerators
2184 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2185 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2186 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2187 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2188
2189 h263_vaapi_hwaccel_deps="vaapi"
2190 h263_vaapi_hwaccel_select="h263_decoder"
2191 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2192 h264_cuvid_hwaccel_select="h264_decoder"
2193 h264_d3d11va_hwaccel_deps="d3d11va"
2194 h264_d3d11va_hwaccel_select="h264_decoder"
2195 h264_d3d11va2_hwaccel_deps="d3d11va"
2196 h264_d3d11va2_hwaccel_select="h264_decoder"
2197 h264_dxva2_hwaccel_deps="dxva2"
2198 h264_dxva2_hwaccel_select="h264_decoder"
2199 h264_mmal_hwaccel_deps="mmal"
2200 h264_qsv_hwaccel_deps="libmfx"
2201 h264_vaapi_hwaccel_deps="vaapi"
2202 h264_vaapi_hwaccel_select="h264_decoder"
2203 h264_vda_hwaccel_deps="vda"
2204 h264_vda_hwaccel_select="h264_decoder"
2205 h264_vda_old_hwaccel_deps="vda"
2206 h264_vda_old_hwaccel_select="h264_decoder"
2207 h264_vdpau_hwaccel_deps="vdpau"
2208 h264_vdpau_hwaccel_select="h264_decoder"
2209 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2210 hevc_cuvid_hwaccel_select="hevc_decoder"
2211 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2212 hevc_d3d11va_hwaccel_select="hevc_decoder"
2213 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2214 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2215 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2216 hevc_dxva2_hwaccel_select="hevc_decoder"
2217 hevc_qsv_hwaccel_deps="libmfx"
2218 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2219 hevc_vaapi_hwaccel_select="hevc_decoder"
2220 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2221 hevc_vdpau_hwaccel_select="hevc_decoder"
2222 mpeg1_vdpau_hwaccel_deps="vdpau"
2223 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2224 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2225 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2226 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2227 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2228 mpeg2_dxva2_hwaccel_deps="dxva2"
2229 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2230 mpeg2_mmal_hwaccel_deps="mmal"
2231 mpeg2_qsv_hwaccel_deps="libmfx"
2232 mpeg2_vaapi_hwaccel_deps="vaapi"
2233 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2234 mpeg2_vdpau_hwaccel_deps="vdpau"
2235 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2236 mpeg4_vaapi_hwaccel_deps="vaapi"
2237 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2238 mpeg4_vdpau_hwaccel_deps="vdpau"
2239 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2240 vc1_d3d11va_hwaccel_deps="d3d11va"
2241 vc1_d3d11va_hwaccel_select="vc1_decoder"
2242 vc1_d3d11va2_hwaccel_deps="d3d11va"
2243 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2244 vc1_dxva2_hwaccel_deps="dxva2"
2245 vc1_dxva2_hwaccel_select="vc1_decoder"
2246 vc1_mmal_hwaccel_deps="mmal"
2247 vc1_qsv_hwaccel_deps="libmfx"
2248 vc1_vaapi_hwaccel_deps="vaapi"
2249 vc1_vaapi_hwaccel_select="vc1_decoder"
2250 vc1_vdpau_hwaccel_deps="vdpau"
2251 vc1_vdpau_hwaccel_select="vc1_decoder"
2252 vp8_qsv_hwaccel_deps="libmfx"
2253 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2254 vp8_vaapi_hwaccel_select="vp8_decoder"
2255 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2256 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2257 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2258 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2259 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2260
2261 # hardware-accelerated codecs
2262 nvenc_deps_any="libdl LoadLibrary"
2263 omx_deps="libdl pthreads"
2264 omx_rpi_select="omx"
2265 qsv_deps="libmfx"
2266 qsvdec_select="qsv"
2267 qsvenc_select="qsv"
2268 qsvvpp_select="qsv"
2269 vaapi_encode_deps="vaapi"
2270
2271 hwupload_cuda_filter_deps="cuda"
2272 scale_npp_filter_deps="cuda libnpp"
2273
2274 h264_mmal_decoder_deps="mmal"
2275 h264_nvenc_encoder_deps="nvenc"
2276 h264_omx_encoder_deps="omx"
2277 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2278 h264_qsv_encoder_select="qsvenc"
2279 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2280 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2281 hevc_nvenc_encoder_deps="nvenc"
2282 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2283 hevc_qsv_encoder_select="hevcparse qsvenc"
2284 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2285 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2286 mjpeg_qsv_encoder_deps="libmfx"
2287 mjpeg_qsv_encoder_select="qsvenc"
2288 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2289 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2290 mpeg2_mmal_decoder_deps="mmal"
2291 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2292 mpeg2_qsv_encoder_select="qsvenc"
2293 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2294 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2295 mpeg4_omx_encoder_deps="omx"
2296 vc1_mmal_decoder_deps="mmal"
2297 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2298 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2299 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2300 vp8_vaapi_encoder_select="vaapi_encode"
2301 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2302 vp9_vaapi_encoder_select="vaapi_encode"
2303
2304 nvenc_h264_encoder_select="h264_nvenc_encoder"
2305 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2306
2307 # parsers
2308 aac_parser_select="adts_header"
2309 h264_parser_select="golomb h264dsp h264parse"
2310 hevc_parser_select="hevcparse"
2311 mpegaudio_parser_select="mpegaudioheader"
2312 mpegvideo_parser_select="mpegvideo"
2313 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2314 vc1_parser_select="vc1dsp"
2315
2316 # bitstream_filters
2317 aac_adtstoasc_bsf_select="adts_header"
2318 h264_metadata_bsf_select="cbs_h264"
2319 h264_redundant_pps_bsf_select="cbs_h264"
2320 hevc_metadata_bsf_select="cbs_h265"
2321 mjpeg2jpeg_bsf_select="jpegtables"
2322 mpeg2_metadata_bsf_select="cbs_mpeg2"
2323 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2324
2325 # external libraries
2326 avisynth_deps="LoadLibrary"
2327 avxsynth_deps="libdl"
2328 avisynth_demuxer_deps_any="avisynth avxsynth"
2329 avisynth_demuxer_select="riffdec"
2330 libdcadec_decoder_deps="libdcadec"
2331 libfaac_encoder_deps="libfaac"
2332 libfaac_encoder_select="audio_frame_queue"
2333 libfdk_aac_decoder_deps="libfdk_aac"
2334 libfdk_aac_encoder_deps="libfdk_aac"
2335 libfdk_aac_encoder_select="audio_frame_queue"
2336 libgsm_decoder_deps="libgsm"
2337 libgsm_encoder_deps="libgsm"
2338 libgsm_ms_decoder_deps="libgsm"
2339 libgsm_ms_encoder_deps="libgsm"
2340 libilbc_decoder_deps="libilbc"
2341 libilbc_encoder_deps="libilbc"
2342 libkvazaar_encoder_deps="libkvazaar"
2343 libmp3lame_encoder_deps="libmp3lame"
2344 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2345 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2346 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2347 libopencore_amrnb_encoder_select="audio_frame_queue"
2348 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2349 libopenh264_decoder_deps="libopenh264"
2350 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2351 libopenh264_encoder_deps="libopenh264"
2352 libopenjpeg_decoder_deps="libopenjpeg"
2353 libopenjpeg_encoder_deps="libopenjpeg"
2354 libopus_decoder_deps="libopus"
2355 libopus_encoder_deps="libopus"
2356 libopus_encoder_select="audio_frame_queue"
2357 libschroedinger_decoder_deps="libschroedinger"
2358 libschroedinger_encoder_deps="libschroedinger"
2359 libspeex_decoder_deps="libspeex"
2360 libspeex_encoder_deps="libspeex"
2361 libspeex_encoder_select="audio_frame_queue"
2362 libtheora_encoder_deps="libtheora"
2363 libtwolame_encoder_deps="libtwolame"
2364 libvo_aacenc_encoder_deps="libvo_aacenc"
2365 libvo_aacenc_encoder_select="audio_frame_queue"
2366 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2367 libvorbis_encoder_deps="libvorbis"
2368 libvorbis_encoder_select="audio_frame_queue"
2369 libvpx_vp8_decoder_deps="libvpx"
2370 libvpx_vp8_encoder_deps="libvpx"
2371 libvpx_vp9_decoder_deps="libvpx"
2372 libvpx_vp9_encoder_deps="libvpx"
2373 libwavpack_encoder_deps="libwavpack"
2374 libwavpack_encoder_select="audio_frame_queue"
2375 libwebp_encoder_deps="libwebp"
2376 libx262_encoder_deps="libx262"
2377 libx264_encoder_deps="libx264"
2378 libx265_encoder_deps="libx265"
2379 libxavs_encoder_deps="libxavs"
2380 libxvid_encoder_deps="libxvid mkstemp"
2381
2382 # demuxers / muxers
2383 ac3_demuxer_select="ac3_parser"
2384 asf_demuxer_select="riffdec"
2385 asf_muxer_select="riffenc"
2386 asf_stream_muxer_select="asf_muxer"
2387 avi_demuxer_select="iso_media riffdec"
2388 avi_muxer_select="riffenc"
2389 caf_demuxer_select="iso_media riffdec"
2390 dash_muxer_select="mp4_muxer"
2391 dirac_demuxer_select="dirac_parser"
2392 dv_demuxer_select="dvprofile"
2393 dv_muxer_select="dvprofile"
2394 dxa_demuxer_select="riffdec"
2395 eac3_demuxer_select="ac3_parser"
2396 f4v_muxer_select="mov_muxer"
2397 flac_demuxer_select="flac_parser"
2398 hds_muxer_select="flv_muxer"
2399 hls_muxer_select="mpegts_muxer"
2400 ipod_muxer_select="mov_muxer"
2401 ismv_muxer_select="mov_muxer"
2402 matroska_audio_muxer_select="matroska_muxer"
2403 matroska_demuxer_select="iso_media riffdec"
2404 matroska_demuxer_suggest="bzlib lzo zlib"
2405 matroska_muxer_select="iso_media riffenc"
2406 mmf_muxer_select="riffenc"
2407 mov_demuxer_select="iso_media riffdec"
2408 mov_demuxer_suggest="zlib"
2409 mov_muxer_select="iso_media riffenc rtpenc_chain"
2410 mp3_demuxer_select="mpegaudio_parser"
2411 mp3_muxer_select="mpegaudioheader"
2412 mp4_muxer_select="mov_muxer"
2413 mpegts_demuxer_select="iso_media"
2414 mpegts_muxer_select="adts_muxer latm_muxer"
2415 mpegtsraw_demuxer_select="mpegts_demuxer"
2416 mxf_d10_muxer_select="mxf_muxer"
2417 nut_muxer_select="riffenc"
2418 nuv_demuxer_select="riffdec"
2419 oga_muxer_select="ogg_muxer"
2420 ogg_demuxer_select="dirac_parse"
2421 opus_muxer_select="ogg_muxer"
2422 psp_muxer_select="mov_muxer"
2423 rtp_demuxer_select="sdp_demuxer"
2424 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2425 rtsp_demuxer_select="http_protocol rtpdec"
2426 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2427 sap_demuxer_select="sdp_demuxer"
2428 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2429 sdp_demuxer_select="rtpdec"
2430 smoothstreaming_muxer_select="ismv_muxer"
2431 spdif_demuxer_select="adts_header"
2432 spdif_muxer_select="adts_header"
2433 spx_muxer_select="ogg_muxer"
2434 swf_demuxer_suggest="zlib"
2435 tak_demuxer_select="tak_parser"
2436 tg2_muxer_select="mov_muxer"
2437 tgp_muxer_select="mov_muxer"
2438 w64_demuxer_select="wav_demuxer"
2439 wav_demuxer_select="riffdec"
2440 wav_muxer_select="riffenc"
2441 webm_muxer_select="iso_media riffenc"
2442 wtv_demuxer_select="mpegts_demuxer riffdec"
2443 xmv_demuxer_select="riffdec"
2444 xwma_demuxer_select="riffdec"
2445
2446 # indevs / outdevs
2447 alsa_indev_deps="alsa"
2448 alsa_outdev_deps="alsa"
2449 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2450 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2451 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2452 dv1394_indev_deps="dv1394"
2453 dv1394_indev_select="dv_demuxer"
2454 fbdev_indev_deps="linux_fb_h"
2455 jack_indev_deps="libjack"
2456 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2457 libcdio_indev_deps="libcdio"
2458 libdc1394_indev_deps="libdc1394"
2459 oss_indev_deps_any="sys_soundcard_h"
2460 oss_outdev_deps_any="sys_soundcard_h"
2461 pulse_indev_deps="libpulse"
2462 sndio_indev_deps="sndio"
2463 sndio_outdev_deps="sndio"
2464 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2465 vfwcap_indev_deps="vfw32 vfwcap_defines"
2466 xcbgrab_indev_deps="libxcb libxcb_shape"
2467 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2468
2469 # protocols
2470 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2471 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2472 ffrtmpcrypt_protocol_select="tcp_protocol"
2473 ffrtmphttp_protocol_conflict="librtmp_protocol"
2474 ffrtmphttp_protocol_select="http_protocol"
2475 gopher_protocol_select="network"
2476 http_protocol_select="tcp_protocol"
2477 http_protocol_suggest="zlib"
2478 httpproxy_protocol_select="tcp_protocol"
2479 httpproxy_protocol_suggest="zlib"
2480 https_protocol_select="tls_protocol"
2481 https_protocol_suggest="zlib"
2482 icecast_protocol_select="http_protocol"
2483 librtmp_protocol_deps="librtmp"
2484 librtmpe_protocol_deps="librtmp"
2485 librtmps_protocol_deps="librtmp"
2486 librtmpt_protocol_deps="librtmp"
2487 librtmpte_protocol_deps="librtmp"
2488 mmsh_protocol_select="http_protocol"
2489 mmst_protocol_select="network"
2490 rtmp_protocol_conflict="librtmp_protocol"
2491 rtmp_protocol_select="tcp_protocol"
2492 rtmp_protocol_suggest="zlib"
2493 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2494 rtmpe_protocol_suggest="zlib"
2495 rtmps_protocol_conflict="librtmp_protocol"
2496 rtmps_protocol_select="tls_protocol"
2497 rtmps_protocol_suggest="zlib"
2498 rtmpt_protocol_select="ffrtmphttp_protocol"
2499 rtmpt_protocol_suggest="zlib"
2500 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2501 rtmpte_protocol_suggest="zlib"
2502 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2503 rtmpts_protocol_suggest="zlib"
2504 rtp_protocol_select="udp_protocol"
2505 sctp_protocol_deps="struct_sctp_event_subscribe"
2506 sctp_protocol_select="network"
2507 srtp_protocol_select="rtp_protocol srtp"
2508 tcp_protocol_select="network"
2509 tls_protocol_deps_any="gnutls openssl"
2510 tls_protocol_select="tcp_protocol"
2511 udp_protocol_select="network"
2512 unix_protocol_deps="sys_un_h"
2513 unix_protocol_select="network"
2514
2515 # filters
2516 asyncts_filter_deps="avresample"
2517 blackframe_filter_deps="gpl"
2518 boxblur_filter_deps="gpl"
2519 bs2b_filter_deps="libbs2b"
2520 cropdetect_filter_deps="gpl"
2521 deinterlace_qsv_filter_deps="libmfx"
2522 deinterlace_vaapi_filter_deps="vaapi"
2523 delogo_filter_deps="gpl"
2524 drawtext_filter_deps="libfreetype"
2525 drawtext_filter_suggest="libfontconfig"
2526 frei0r_filter_deps="frei0r libdl"
2527 frei0r_src_filter_deps="frei0r libdl"
2528 hdcd_filter_deps="libhdcd"
2529 hqdn3d_filter_deps="gpl"
2530 interlace_filter_deps="gpl"
2531 movie_filter_deps="avcodec avformat"
2532 ocv_filter_deps="libopencv"
2533 overlay_qsv_filter_deps="libmfx"
2534 overlay_qsv_filter_select="qsvvpp"
2535 resample_filter_deps="avresample"
2536 scale_filter_deps="swscale"
2537 scale_qsv_filter_deps="libmfx"
2538 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2539 vpp_qsv_filter_deps="libmfx"
2540 vpp_qsv_filter_select="qsvvpp"
2541
2542 # examples
2543 decode_audio_example_deps="avcodec avutil"
2544 decode_video_example_deps="avcodec avutil"
2545 encode_audio_example_deps="avcodec avutil"
2546 encode_video_example_deps="avcodec avutil"
2547 filter_audio_example_deps="avfilter avutil"
2548 metadata_example_deps="avformat avutil"
2549 output_example_deps="avcodec avformat avresample avutil swscale"
2550 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2551 transcode_aac_example_deps="avcodec avformat avresample"
2552
2553 # EXTRALIBS_LIST
2554 cpu_init_extralibs="pthreads_extralibs"
2555 cws2fws_extralibs="zlib_extralibs"
2556
2557 # libraries, in linking order
2558 avcodec_deps="avutil"
2559 avcodec_select="null_bsf"
2560 avdevice_deps="avformat avcodec avutil"
2561 avfilter_deps="avutil"
2562 avformat_deps="avcodec avutil"
2563 avformat_suggest="network"
2564 avresample_deps="avutil"
2565 swscale_deps="avutil"
2566
2567 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2568 avdevice_extralibs="libm_extralibs"
2569 avformat_extralibs="libm_extralibs"
2570 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2571 avresample_extralibs="libm_extralibs"
2572 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2573 swscale_extralibs="libm_extralibs"
2574
2575 # programs
2576 avconv_deps="avcodec avfilter avformat avresample swscale"
2577 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2578 fps_filter null_filter resample_filter scale_filter
2579 trim_filter"
2580 avconv_suggest="psapi shell32"
2581 avplay_deps="avcodec avfilter avformat avresample sdl"
2582 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2583 avplay_suggest="shell32"
2584 avprobe_deps="avcodec avformat"
2585 avprobe_suggest="shell32"
2586
2587 # documentation
2588 pod2man_deps="doc"
2589 texi2html_deps="doc"
2590
2591 # default parameters
2592
2593 logfile="avbuild/config.log"
2594
2595 # installation paths
2596 prefix_default="/usr/local"
2597 bindir_default='${prefix}/bin'
2598 datadir_default='${prefix}/share/avconv'
2599 docdir_default='${prefix}/share/doc/libav'
2600 incdir_default='${prefix}/include'
2601 libdir_default='${prefix}/lib'
2602 mandir_default='${prefix}/share/man'
2603 shlibdir_default="$libdir_default"
2604
2605 # toolchain
2606 ar_default="ar"
2607 cc_default="gcc"
2608 host_cc_default="gcc"
2609 x86asmexe_default="nasm"
2610 ln_s="ln -s -f"
2611 nm_default="nm -g"
2612 pkg_config_default=pkg-config
2613 ranlib="ranlib"
2614 strip="strip"
2615 version_script='--version-script'
2616
2617 # machine
2618 arch_default=$(uname -m)
2619 cpu="generic"
2620 intrinsics="none"
2621
2622 # OS
2623 target_os_default=$(tolower $(uname -s))
2624 host_os=$target_os_default
2625
2626 # configurable options
2627 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2628
2629 enable asm
2630 enable debug
2631 enable doc
2632 enable faan faandct faanidct
2633 enable optimizations
2634 enable safe_bitstream_reader
2635 enable static
2636 enable swscale_alpha
2637 enable valgrind_backtrace
2638
2639 # By default, enable only those hwaccels that have no external dependencies.
2640 enable d3d11va dxva2 vda vdpau
2641
2642 # internal components are enabled by default
2643 enable $EXTRALIBS_LIST
2644
2645 # Avoid external, non-system, libraries getting enabled by dependency resolution
2646 disable $EXTERNAL_LIBRARY_LIST
2647
2648 # build settings
2649 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2650 LIBPREF="lib"
2651 LIBSUF=".a"
2652 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2653 SLIBPREF="lib"
2654 SLIBSUF=".so"
2655 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2656 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2657 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2658 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2659 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2660 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2661 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2662
2663 asflags_filter=echo
2664 cflags_filter=echo
2665 ldflags_filter=echo
2666
2667 AS_C='-c'
2668 AS_O='-o $@'
2669 CC_C='-c'
2670 CC_E='-E -o $@'
2671 CC_O='-o $@'
2672 OBJCC_C='-c'
2673 OBJCC_E='-E -o $@'
2674 OBJCC_O='-o $@'
2675 X86ASM_O='-o $@'
2676 LD_O='-o $@'
2677 LD_LIB='-l%'
2678 LD_PATH='-L'
2679 HOSTCC_C='-c'
2680 HOSTCC_E='-E -o $@'
2681 HOSTCC_O='-o $@'
2682 HOSTLD_O='-o $@'
2683
2684 host_extralibs='-lm'
2685 host_cflags_filter=echo
2686 host_ldflags_filter=echo
2687
2688 target_path='$(CURDIR)'
2689
2690 # since the object filename is not given with the -MM flag, the compiler
2691 # is only able to print the basename, and we must add the path ourselves
2692 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2693 DEPFLAGS='-MM'
2694
2695 mkdir -p avbuild
2696
2697 # find source path
2698 if test -f configure; then
2699 source_path=.
2700 else
2701 source_path=$(cd $(dirname "$0"); pwd)
2702 echo "$source_path" | grep -q '[[:blank:]]' &&
2703 die "Out of tree builds are impossible with whitespace in source path."
2704 test -e "$source_path/config.h" &&
2705 die "Out of tree builds are impossible with config.h in source dir."
2706 fi
2707
2708 for v in "$@"; do
2709 r=${v#*=}
2710 l=${v%"$r"}
2711 r=$(sh_quote "$r")
2712 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2713 done
2714
2715 find_things(){
2716 thing=$1
2717 pattern=$2
2718 file=$source_path/$3
2719 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2720 }
2721
2722 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2723 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2724 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2725 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2726 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2727 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2728 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2729 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2730 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2731
2732 find_things_extern(){
2733 thing=$1
2734 pattern=$2
2735 file=$source_path/$3
2736 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2737 }
2738
2739 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2740 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2741
2742 AVCODEC_COMPONENTS_LIST="
2743 $BSF_LIST
2744 $DECODER_LIST
2745 $ENCODER_LIST
2746 $HWACCEL_LIST
2747 $PARSER_LIST
2748 "
2749
2750 AVDEVICE_COMPONENTS_LIST="
2751 $INDEV_LIST
2752 $OUTDEV_LIST
2753 "
2754
2755 AVFILTER_COMPONENTS_LIST="
2756 $FILTER_LIST
2757 "
2758
2759 AVFORMAT_COMPONENTS_LIST="
2760 $DEMUXER_LIST
2761 $MUXER_LIST
2762 $PROTOCOL_LIST
2763 "
2764
2765 ALL_COMPONENTS="
2766 $AVCODEC_COMPONENTS_LIST
2767 $AVDEVICE_COMPONENTS_LIST
2768 $AVFILTER_COMPONENTS_LIST
2769 $AVFORMAT_COMPONENTS_LIST
2770 "
2771
2772 for n in $COMPONENT_LIST; do
2773 v=$(toupper ${n%s})_LIST
2774 eval enable \$$v
2775 eval ${n}_if_any="\$$v"
2776 done
2777
2778 enable $ARCH_EXT_LIST
2779
2780 die_unknown(){
2781 echo "Unknown option \"$1\"."
2782 echo "See $0 --help for available options."
2783 exit 1
2784 }
2785
2786 print_3_columns() {
2787 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2788 }
2789
2790 show_list() {
2791 suffix=_$1
2792 shift
2793 echo $* | sed s/$suffix//g | print_3_columns
2794 exit 0
2795 }
2796
2797 rand_list(){
2798 IFS=', '
2799 set -- $*
2800 unset IFS
2801 for thing; do
2802 comp=${thing%:*}
2803 prob=${thing#$comp}
2804 prob=${prob#:}
2805 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2806 echo "prob ${prob:-0.5}"
2807 printf '%s\n' $comp
2808 done
2809 }
2810
2811 do_random(){
2812 action=$1
2813 shift
2814 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2815 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2816 }
2817
2818 for opt do
2819 optval="${opt#*=}"
2820 case "$opt" in
2821 --extra-ldflags=*)
2822 add_ldflags $optval
2823 ;;
2824 --extra-ldexeflags=*)
2825 add_ldexeflags $optval
2826 ;;
2827 --extra-ldsoflags=*)
2828 add_ldsoflags $optval
2829 ;;
2830 --extra-libs=*)
2831 add_extralibs $optval
2832 ;;
2833 --disable-devices)
2834 disable $INDEV_LIST $OUTDEV_LIST
2835 ;;
2836 --enable-debug=*)
2837 debuglevel="$optval"
2838 ;;
2839 --disable-programs)
2840 disable $PROGRAM_LIST
2841 ;;
2842 --disable-everything)
2843 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2844 ;;
2845 --disable-all)
2846 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2847 disable $LIBRARY_LIST $PROGRAM_LIST doc
2848 ;;
2849 --enable-random|--disable-random)
2850 action=${opt%%-random}
2851 do_random ${action#--} $COMPONENT_LIST
2852 ;;
2853 --enable-random=*|--disable-random=*)
2854 action=${opt%%-random=*}
2855 do_random ${action#--} $optval
2856 ;;
2857 --enable-*=*|--disable-*=*)
2858 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2859 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2860 eval list=\$$(toupper $thing)_LIST
2861 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2862 $action $(filter "$name" $list)
2863 ;;
2864 --enable-avserver|--disable-avserver*)
2865 warn "avserver has been removed, the ${opt} option is only"\
2866 "provided for compatibility and will be removed in the future"
2867 ;;
2868 --enable-yasm|--disable-yasm)
2869 warn "The ${opt} option is only provided for compatibility and will be\n"\
2870 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2871 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2872 ;;
2873 --enable-?*|--disable-?*)
2874 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2875 if is_in $option $COMPONENT_LIST; then
2876 test $action = disable && action=unset
2877 eval $action \$$(toupper ${option%s})_LIST
2878 elif is_in $option $CMDLINE_SELECT; then
2879 $action $option
2880 else
2881 die_unknown $opt
2882 fi
2883 ;;
2884 --list-*)
2885 NAME="${opt#--list-}"
2886 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2887 NAME=${NAME%s}
2888 eval show_list $NAME \$$(toupper $NAME)_LIST
2889 ;;
2890 --help|-h) show_help
2891 ;;
2892 --quiet|-q) quiet=yes
2893 ;;
2894 *)
2895 optname="${opt%%=*}"
2896 optname="${optname#--}"
2897 optname=$(echo "$optname" | sed 's/-/_/g')
2898 if is_in $optname $CMDLINE_SET; then
2899 eval $optname='$optval'
2900 elif is_in $optname $CMDLINE_APPEND; then
2901 append $optname "$optval"
2902 else
2903 die_unknown $opt
2904 fi
2905 ;;
2906 esac
2907 done
2908
2909 for e in $env; do
2910 eval "export $e"
2911 done
2912
2913 disabled logging && logfile=/dev/null
2914
2915 # Die early if licensing-related configure options are incompatible.
2916 die_license_disabled() {
2917 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2918 }
2919
2920 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2921 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2922 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2923
2924 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2925
2926 enabled_all gnutls openssl &&
2927 die "GnuTLS and OpenSSL must not be enabled at the same time."
2928
2929 # Disable all the library-specific components if the library itself
2930 # is disabled, see AVCODEC_LIST and following _LIST variables.
2931
2932 disable_components(){
2933 disabled ${1} && disable $(
2934 eval components="\$$(toupper ${1})_COMPONENTS"
2935 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2936 )
2937 }
2938
2939 map 'disable_components $v' $LIBRARY_LIST
2940
2941 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2942 set >> $logfile
2943
2944 case "$toolchain" in
2945 *-asan)
2946 cc_default="${toolchain%-asan}"
2947 add_cflags -fsanitize=address
2948 add_ldflags -fsanitize=address
2949 ;;
2950 *-msan)
2951 cc_default="${toolchain%-msan}"
2952 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2953 add_ldflags -fsanitize=memory
2954 ;;
2955 *-tsan)
2956 cc_default="${toolchain%-tsan}"
2957 add_cflags -fsanitize=thread -fPIE
2958 add_ldflags -fsanitize=thread -pie
2959 case "$toolchain" in
2960 gcc-tsan)
2961 add_cflags -fPIC
2962 add_ldflags -fPIC
2963 ;;
2964 esac
2965 ;;
2966 *-usan)
2967 cc_default="${toolchain%-usan}"
2968 add_cflags -fsanitize=undefined
2969 add_ldflags -fsanitize=undefined
2970 case "$toolchain" in
2971 clang-usan)
2972 add_cflags -O1
2973 ;;
2974 esac
2975 ;;
2976 valgrind-*)
2977 target_exec_default="valgrind"
2978 case "$toolchain" in
2979 valgrind-massif)
2980 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2981 ;;
2982 valgrind-memcheck)
2983 target_exec_args="--track-origins=yes --leak-check=full"
2984 ;;
2985 esac
2986 ;;
2987 msvc)
2988 # Check whether the current MSVC version needs the C99 converter.
2989 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2990 # support enough of C99 to build libav. Default to the new
2991 # behaviour if the regexp was unable to match anything, since this
2992 # successfully parses the version number of existing supported
2993 # versions that require the converter (MSVC 2010 and 2012).
2994 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2995 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2996 cc_default="cl"
2997 else
2998 cc_default="c99wrap cl"
2999 fi
3000 ld_default="$source_path/compat/windows/mslink"
3001 nm_default="dumpbin -symbols"
3002 ar_default="lib"
3003 case "$arch" in
3004 arm*)
3005 as_default="armasm"
3006 ;;
3007 esac
3008 target_os_default="win32"
3009 # Use a relative path for TMPDIR. This makes sure all the
3010 # ffconf temp files are written with a relative path, avoiding
3011 # issues with msys/win32 path conversion for MSVC parameters
3012 # such as -Fo<file> or -out:<file>.
3013 TMPDIR=.
3014 ;;
3015 icl)
3016 cc_default="icl"
3017 ld_default="xilink"
3018 nm_default="dumpbin -symbols"
3019 ar_default="xilib"
3020 target_os_default="win32"
3021 TMPDIR=.
3022 ;;
3023 gcov)
3024 add_cflags -fprofile-arcs -ftest-coverage
3025 add_ldflags -fprofile-arcs -ftest-coverage
3026 ;;
3027 llvm-cov)
3028 add_cflags -fprofile-arcs -ftest-coverage
3029 add_ldflags --coverage
3030 ;;
3031 hardened)
3032 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3033 add_cflags -fno-strict-overflow -fstack-protector-all
3034 add_ldflags -Wl,-z,relro -Wl,-z,now
3035 ;;
3036 ?*)
3037 die "Unknown toolchain $toolchain"
3038 ;;
3039 esac
3040
3041 test -n "$cross_prefix" && enable cross_compile
3042
3043 if enabled cross_compile; then
3044 test -n "$arch" && test -n "$target_os" ||
3045 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3046 fi
3047
3048 ar_default="${cross_prefix}${ar_default}"
3049 cc_default="${cross_prefix}${cc_default}"
3050 objcc_default="${cross_prefix}${objcc_default}"
3051 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3052 nm_default="${cross_prefix}${nm_default}"
3053 pkg_config_default="${cross_prefix}${pkg_config_default}"
3054 ranlib="${cross_prefix}${ranlib}"
3055 strip="${cross_prefix}${strip}"
3056
3057 sysinclude_default="${sysroot}/usr/include"
3058
3059 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3060 enabled cross_compile || host_cc_default=$cc
3061 set_default host_cc
3062
3063 if ! $pkg_config --version >/dev/null 2>&1; then
3064 warn "$pkg_config not found, library detection may fail."
3065 pkg_config=false
3066 fi
3067
3068 exesuf() {
3069 case $1 in
3070 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3071 esac
3072 }
3073
3074 EXESUF=$(exesuf $target_os)
3075 HOSTEXESUF=$(exesuf $host_os)
3076
3077 # set temporary file name
3078 : ${TMPDIR:=$TEMPDIR}
3079 : ${TMPDIR:=$TMP}
3080 : ${TMPDIR:=/tmp}
3081
3082 if ! check_cmd mktemp -u XXXXXX; then
3083 # simple replacement for missing mktemp
3084 # NOT SAFE FOR GENERAL USE
3085 mktemp(){
3086 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3087 echo "$tmpname"
3088 mkdir "$tmpname"
3089 }
3090 fi
3091
3092 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3093 die "Unable to create temporary directory in $TMPDIR."
3094
3095 tmpfile(){
3096 tmp="${AVTMPDIR}/test"$2
3097 (set -C; exec > $tmp) 2> /dev/null ||
3098 die "Unable to create temporary file in $AVTMPDIR."
3099 eval $1=$tmp
3100 }
3101
3102 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3103 trap 'exit 2' INT
3104
3105 tmpfile TMPASM .asm
3106 tmpfile TMPC .c
3107 tmpfile TMPE $EXESUF
3108 tmpfile TMPH .h
3109 tmpfile TMPO .o
3110 tmpfile TMPS .S
3111 tmpfile TMPSH .sh
3112 tmpfile TMPV .ver
3113
3114 unset -f mktemp
3115
3116 chmod +x $TMPE
3117
3118 # make sure we can execute files in $TMPDIR
3119 cat > $TMPSH 2>> $logfile <<EOF
3120 #! /bin/sh
3121 EOF
3122 chmod +x $TMPSH >> $logfile 2>&1
3123 if ! $TMPSH >> $logfile 2>&1; then
3124 cat <<EOF
3125 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3126 variable to another directory and make sure that it is not mounted noexec.
3127 EOF
3128 die "Sanity test failed."
3129 fi
3130
3131 armasm_flags(){
3132 for flag; do
3133 case $flag in
3134 # Filter out MSVC cl.exe options from cflags that shouldn't
3135 # be passed to gas-preprocessor
3136 -M[TD]*) ;;
3137 *) echo $flag ;;
3138 esac
3139 done
3140 }
3141
3142 cparser_flags(){
3143 for flag; do
3144 case $flag in
3145 -Wno-switch) echo -Wno-switch-enum ;;
3146 -Wno-format-zero-length) ;;
3147 -Wdisabled-optimization) ;;
3148 -Wno-pointer-sign) echo -Wno-other ;;
3149 *) echo $flag ;;
3150 esac
3151 done
3152 }
3153
3154 msvc_common_flags(){
3155 for flag; do
3156 case $flag in
3157 # In addition to specifying certain flags under the compiler
3158 # specific filters, they must be specified here as well or else the
3159 # generic catch all at the bottom will print the original flag.
3160 -Wall) ;;
3161 -Wextra) ;;
3162 -std=c99) ;;
3163 # Common flags
3164 -fomit-frame-pointer) ;;
3165 -g) echo -Z7 ;;
3166 -fno-math-errno) ;;
3167 -fno-common) ;;
3168 -fno-signed-zeros) ;;
3169 -fPIC) ;;
3170 -mthumb) ;;
3171 -march=*) ;;
3172 -lz) echo zlib.lib ;;
3173 -lx264) echo libx264.lib ;;
3174 -l*) echo ${flag#-l}.lib ;;
3175 -L*) echo -libpath:${flag#-L} ;;
3176 *) echo $flag ;;
3177 esac
3178 done
3179 }
3180
3181 msvc_flags(){
3182 msvc_common_flags "$@"
3183 for flag; do
3184 case $flag in
3185 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3186 -wd4554 ;;
3187 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3188 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3189 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3190 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3191 esac
3192 done
3193 }
3194
3195 icl_flags(){
3196 msvc_common_flags "$@"
3197 for flag; do
3198 case $flag in
3199 # Despite what Intel's documentation says -Wall, which is supported
3200 # on Windows, does enable remarks so disable them here.
3201 -Wall) echo $flag -Qdiag-disable:remark ;;
3202 -std=c99) echo -Qstd=c99 ;;
3203 esac
3204 done
3205 }
3206
3207 pgi_flags(){
3208 for flag; do
3209 case $flag in
3210 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3211 -fomit-frame-pointer) echo -Mnoframe ;;
3212 -g) echo -gopt ;;
3213 *) echo $flag ;;
3214 esac
3215 done
3216 }
3217
3218 suncc_flags(){
3219 for flag; do
3220 case $flag in
3221 -march=*|-mcpu=*)
3222 case "${flag#*=}" in
3223 native) echo -xtarget=native ;;
3224 v9|niagara) echo -xarch=sparc ;;
3225 ultrasparc) echo -xarch=sparcvis ;;
3226 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3227 i586|pentium) echo -xchip=pentium ;;
3228 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3229 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3230 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3231 pentium4*) echo -xtarget=pentium4 ;;
3232 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3233 *-sse3) echo -xarch=sse3 ;;
3234 core2) echo -xarch=ssse3 -xchip=core2 ;;
3235 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3236 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3237 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3238 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3239 k8|opteron|athlon64|athlon-fx)
3240 echo -xarch=sse2a ;;
3241 athlon*) echo -xarch=pentium_proa ;;
3242 esac
3243 ;;
3244 -std=c99) echo -xc99 ;;
3245 -fomit-frame-pointer) echo -xregs=frameptr ;;
3246 -fPIC) echo -KPIC -xcode=pic32 ;;
3247 -W*,*) echo $flag ;;
3248 -f*-*|-W*|-mimpure-text) ;;
3249 -shared) echo -G ;;
3250 *) echo $flag ;;
3251 esac
3252 done
3253 }
3254
3255 tms470_flags(){
3256 for flag; do
3257 case $flag in
3258 -march=*|-mcpu=*)
3259 case "${flag#*=}" in
3260 armv7-a|cortex-a*) echo -mv=7a8 ;;
3261 armv7-r|cortex-r*) echo -mv=7r4 ;;
3262 armv7-m|cortex-m*) echo -mv=7m3 ;;
3263 armv6*|arm11*) echo -mv=6 ;;
3264 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3265 echo -mv=5e ;;
3266 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3267 esac
3268 ;;
3269 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3270 -mfpu=vfp) echo --float_support=vfpv2 ;;
3271 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3272 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3273 -msoft-float) echo --float_support=vfplib ;;
3274 -O[0-3]|-mf=*) echo $flag ;;
3275 -g) echo -g -mn ;;
3276 -pds=*) echo $flag ;;
3277 -D*|-I*) echo $flag ;;
3278 --gcc|--abi=*) echo $flag ;;
3279 -me) echo $flag ;;
3280 esac
3281 done
3282 }
3283
3284 probe_cc(){
3285 pfx=$1
3286 _cc=$2
3287
3288 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3289 unset _ld_o _ldflags _ld_lib _ld_path
3290 unset _depflags _DEPCMD _DEPFLAGS
3291 _flags_filter=echo
3292
3293 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3294 _type=llvm_gcc
3295 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3296 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3297 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3298 _cflags_speed='-O3'
3299 _cflags_size='-Os'
3300 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3301 _type=gcc
3302 gcc_version=$($_cc --version | head -n1)
3303 gcc_basever=$($_cc -dumpversion)
3304 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3305 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3306 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3307 if ! $_cc -dumpversion | grep -q '^2\.'; then
3308 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3309 fi
3310 _cflags_speed='-O3'
3311 _cflags_size='-Os'
3312 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3313 _type=icc
3314 _ident=$($_cc --version | head -n1)
3315 _depflags='-MMD'
3316 _cflags_speed='-O3'
3317 _cflags_size='-Os'
3318 _cflags_noopt='-O1'
3319 elif $_cc -v 2>&1 | grep -q xlc; then
3320 _type=xlc
3321 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3322 _cflags_speed='-O5'
3323 _cflags_size='-O5 -qcompact'
3324 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3325 test -d "$sysroot" || die "No valid sysroot specified."
3326 _type=armcc
3327 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3328 armcc_conf="$PWD/armcc.conf"
3329 $_cc --arm_linux_configure \
3330 --arm_linux_config_file="$armcc_conf" \
3331 --configure_sysroot="$sysroot" \
3332 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3333 die "Error creating armcc configuration file."
3334 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3335 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3336 as_default="${cross_prefix}gcc"
3337 _depflags='-MMD'
3338 _cflags_speed='-O3'
3339 _cflags_size='-Os'
3340 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3341 _type=tms470
3342 _ident=$($_cc -version | head -n1 | tr -s ' ')
3343 _flags='--gcc --abi=eabi -me'
3344 _cc_e='-ppl -fe=$@'
3345 _cc_o='-fe=$@'
3346 _depflags='-ppa -ppd=$(@:.o=.d)'
3347 _cflags_speed='-O3 -mf=5'
3348 _cflags_size='-O3 -mf=2'
3349 _flags_filter=tms470_flags
3350 elif $_cc -v 2>&1 | grep -q clang; then
3351 _type=clang
3352 _ident=$($_cc --version 2>/dev/null | head -n1)
3353 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3354 _cflags_speed='-O3'
3355 _cflags_size='-Os'
3356 elif $_cc -V 2>&1 | grep -q Sun; then
3357 _type=suncc
3358 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3359 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3360 _DEPFLAGS='-xM1 -xc99'
3361 _ldflags='-std=c99'
3362 _cflags_speed='-O5'
3363 _cflags_size='-O5 -xspace'
3364 _flags_filter=suncc_flags
3365 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3366 _type=pathscale
3367 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3368 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3369 _cflags_speed='-O2'
3370 _cflags_size='-Os'
3371 _flags_filter='filter_out -Wdisabled-optimization'
3372 elif $_cc -v 2>&1 | grep -q Open64; then
3373 _type=open64
3374 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3375 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3376 _cflags_speed='-O2'
3377 _cflags_size='-Os'
3378 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3379 elif $_cc -V 2>&1 | grep -q Portland; then
3380 _type=pgi
3381 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3382 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3383 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3384 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3385 _cflags_noopt="-O1"
3386 _flags_filter=pgi_flags
3387 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3388 _type=armasm
3389 _ident=$($_cc | head -n1)
3390 # 4509: "This form of conditional instruction is deprecated"
3391 _flags="-nologo -ignore 4509"
3392 _flags_filter=armasm_flags
3393 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3394 _type=msvc
3395 _ident=$($_cc 2>&1 | head -n1)
3396 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3397 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3398 _cflags_speed="-O2"
3399 _cflags_size="-O1"
3400 _cflags_noopt="-O1"
3401 if $_cc -nologo- 2>&1 | grep -q Linker; then
3402 _ld_o='-out:$@'
3403 else
3404 _ld_o='-Fe$@'
3405 fi
3406 _cc_o='-Fo$@'
3407 _cc_e='-P -Fi$@'
3408 _flags_filter=msvc_flags
3409 _ld_lib='lib%.a'
3410 _ld_path='-libpath:'
3411 _flags='-nologo'
3412 elif $_cc 2>&1 | grep -q Intel; then
3413 _type=icl
3414 _ident=$($_cc 2>&1 | head -n1)
3415 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3416 # Not only is O3 broken on 13.x+ but it is slower on all previous
3417 # versions (tested) as well.
3418 _cflags_speed="-O2"
3419 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3420 if $_cc 2>&1 | grep -q Linker; then
3421 _ld_o='-out:$@'
3422 else
3423 _ld_o='-Fe$@'
3424 fi
3425 _cc_o='-Fo$@'
3426 _cc_e='-P'
3427 _flags_filter=icl_flags
3428 _ld_lib='lib%.a'
3429 _ld_path='-libpath:'
3430 # -Qdiag-error to make icl error when seeing certain unknown arguments
3431 _flags='-nologo -Qdiag-error:4044,10157'
3432 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3433 # with MSVC which enables it by default.
3434 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3435 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3436 # lld can emulate multiple different linkers; in ms link.exe mode,
3437 # the -? parameter gives the help output which contains an identifyable
3438 # string, while it gives an error in other modes.
3439 _type=lld-link
3440 # The link.exe mode doesn't have a switch for getting the version,
3441 # but we can force it back to gnu mode and get the version from there.
3442 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3443 _ld_o='-out:$@'
3444 _flags_filter=msvc_flags
3445 _ld_lib='lib%.a'
3446 _ld_path='-libpath:'
3447 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3448 _type=cparser
3449 _ident=$($_cc --version | head -n1)
3450 _depflags='-MMD'
3451 _cflags_speed='-O4'
3452 _cflags_size='-O2'
3453 _flags_filter=cparser_flags
3454 fi
3455
3456 eval ${pfx}_type=\$_type
3457 eval ${pfx}_ident=\$_ident
3458 }
3459
3460 set_ccvars(){
3461 eval ${1}_C=\${_cc_c-\${${1}_C}}
3462 eval ${1}_E=\${_cc_e-\${${1}_E}}
3463 eval ${1}_O=\${_cc_o-\${${1}_O}}
3464
3465 if [ -n "$_depflags" ]; then
3466 eval ${1}_DEPFLAGS=\$_depflags
3467 else
3468 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3469 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3470 eval DEP${1}FLAGS=\$_flags
3471 fi
3472 }
3473
3474 probe_cc cc "$cc"
3475 cflags_filter=$_flags_filter
3476 cflags_speed=$_cflags_speed
3477 cflags_size=$_cflags_size
3478 cflags_noopt=$_cflags_noopt
3479 add_cflags $_flags $_cflags
3480 cc_ldflags=$_ldflags
3481 set_ccvars CC
3482
3483 probe_cc hostcc "$host_cc"
3484 host_cflags_filter=$_flags_filter
3485 host_cflags_speed=$_cflags_speed
3486 add_host_cflags $_flags $_cflags
3487 set_ccvars HOSTCC
3488
3489 test -n "$cc_type" && enable $cc_type ||
3490 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3491
3492 : ${as_default:=$cc}
3493 : ${objcc_default:=$cc}
3494 : ${dep_cc_default:=$cc}
3495 : ${ld_default:=$cc}
3496 : ${host_ld_default:=$host_cc}
3497 set_default ar as objcc dep_cc ld host_ld
3498
3499 probe_cc as "$as"
3500 asflags_filter=$_flags_filter
3501 add_asflags $_flags $_cflags
3502 set_ccvars AS
3503
3504 probe_cc objcc "$objcc"
3505 objcflags_filter=$_flags_filter
3506 add_objcflags $_flags $_cflags
3507 set_ccvars OBJC
3508
3509 probe_cc ld "$ld"
3510 ldflags_filter=$_flags_filter
3511 add_ldflags $_flags $_ldflags
3512 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3513 LD_O=${_ld_o-$LD_O}
3514 LD_LIB=${_ld_lib-$LD_LIB}
3515 LD_PATH=${_ld_path-$LD_PATH}
3516
3517 probe_cc hostld "$host_ld"
3518 host_ldflags_filter=$_flags_filter
3519 add_host_ldflags $_flags $_ldflags
3520 HOSTLD_O=${_ld_o-$HOSTLD_O}
3521
3522 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3523 probe_cc depcc "$dep_cc"
3524 CCDEP=${_DEPCMD:-$DEPCMD}
3525 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3526 DEPCCFLAGS=$_flags
3527 fi
3528
3529 if $ar 2>&1 | grep -q Microsoft; then
3530 arflags="-nologo"
3531 ar_o='-out:$@'
3532 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3533 arflags="rq"
3534 ar_o='$@'
3535 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3536 arflags='-Xany -r -c'
3537 ar_o='$@'
3538 else
3539 arflags="rc"
3540 ar_o='$@'
3541 fi
3542
3543 add_cflags $extra_cflags
3544 add_objcflags $extra_objcflags
3545 add_asflags $extra_cflags
3546
3547 if test -n "$sysroot"; then
3548 case "$cc_type" in
3549 gcc|llvm_gcc|clang)
3550 add_cppflags --sysroot="$sysroot"
3551 add_ldflags --sysroot="$sysroot"
3552 ;;
3553 tms470)
3554 add_cppflags -I"$sysinclude"
3555 add_ldflags --sysroot="$sysroot"
3556 ;;
3557 esac
3558 fi
3559
3560 if test "$cpu" = host; then
3561 enabled cross_compile &&
3562 die "--cpu=host makes no sense when cross-compiling."
3563
3564 case "$cc_type" in
3565 gcc|llvm_gcc)
3566 check_native(){
3567 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3568 sed -n "/cc1.*$1=/{
3569 s/.*$1=\\([^ ]*\\).*/\\1/
3570 p
3571 q
3572 }" $TMPE
3573 }
3574 cpu=$(check_native -march || check_native -mcpu)
3575 ;;
3576 esac
3577
3578 test "${cpu:-host}" = host &&
3579 die "--cpu=host not supported with compiler $cc"
3580 fi
3581
3582 # Deal with common $arch aliases
3583 case "$arch" in
3584 aarch64|arm64)
3585 arch="aarch64"
3586 ;;
3587 arm*)
3588 arch="arm"
3589 ;;
3590 mips*|IP*)
3591 case "$arch" in
3592 *el)
3593 add_cppflags -EL
3594 add_ldflags -EL
3595 ;;
3596 *eb)
3597 add_cppflags -EB
3598 add_ldflags -EB
3599 ;;
3600 esac
3601 arch="mips"
3602 ;;
3603 parisc*|hppa*)
3604 arch="parisc"
3605 ;;
3606 "Power Macintosh"|ppc*|powerpc*)
3607 arch="ppc"
3608 ;;
3609 s390|s390x)
3610 arch="s390"
3611 ;;
3612 sh4|sh)
3613 arch="sh4"
3614 ;;
3615 sun4u|sparc*)
3616 arch="sparc"
3617 ;;
3618 tilegx|tile-gx)
3619 arch="tilegx"
3620 ;;
3621 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3622 arch="x86"
3623 ;;
3624 esac
3625
3626 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3627 enable $arch
3628
3629 # Add processor-specific flags
3630 if enabled aarch64; then
3631
3632 case $cpu in
3633 armv*)
3634 cpuflags="-march=$cpu"
3635 ;;
3636 *)
3637 cpuflags="-mcpu=$cpu"
3638 ;;
3639 esac
3640
3641 elif enabled alpha; then
3642
3643 cpuflags="-mcpu=$cpu"
3644
3645 elif enabled arm; then
3646
3647 check_arm_arch() {
3648 check_cpp_condition stddef.h \
3649 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3650 $cpuflags
3651 }
3652
3653 probe_arm_arch() {
3654 if check_arm_arch 4; then echo armv4
3655 elif check_arm_arch 4T; then echo armv4t
3656 elif check_arm_arch 5; then echo armv5
3657 elif check_arm_arch 5E; then echo armv5e
3658 elif check_arm_arch 5T; then echo armv5t
3659 elif check_arm_arch 5TE; then echo armv5te
3660 elif check_arm_arch 5TEJ; then echo armv5te
3661 elif check_arm_arch 6; then echo armv6
3662 elif check_arm_arch 6J; then echo armv6j
3663 elif check_arm_arch 6K; then echo armv6k
3664 elif check_arm_arch 6Z; then echo armv6z
3665 elif check_arm_arch 6ZK; then echo armv6zk
3666 elif check_arm_arch 6T2; then echo armv6t2
3667 elif check_arm_arch 7; then echo armv7
3668 elif check_arm_arch 7A 7_A; then echo armv7-a
3669 elif check_arm_arch 7S; then echo armv7-a
3670 elif check_arm_arch 7R 7_R; then echo armv7-r
3671 elif check_arm_arch 7M 7_M; then echo armv7-m
3672 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3673 elif check_arm_arch 8A 8_A; then echo armv8-a
3674 fi
3675 }
3676
3677 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3678
3679 case $cpu in
3680 armv*)
3681 cpuflags="-march=$cpu"
3682 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3683 ;;
3684 *)
3685 cpuflags="-mcpu=$cpu"
3686 case $cpu in
3687 cortex-a*) subarch=armv7a ;;
3688 cortex-r*) subarch=armv7r ;;
3689 cortex-m*) enable thumb; subarch=armv7m ;;
3690 arm11*) subarch=armv6 ;;
3691 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3692 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3693 *) subarch=$(probe_arm_arch) ;;
3694 esac
3695 ;;
3696 esac
3697
3698 case "$subarch" in
3699 armv5t*) enable fast_clz ;;
3700 armv[6-8]*) enable fast_clz fast_unaligned ;;
3701 esac
3702
3703 elif enabled avr32; then
3704
3705 case $cpu in
3706 ap7[02]0[0-2])
3707 subarch="avr32_ap"
3708 cpuflags="-mpart=$cpu"
3709 ;;
3710 ap)
3711 subarch="avr32_ap"
3712 cpuflags="-march=$cpu"
3713 ;;
3714 uc3[ab]*)
3715 subarch="avr32_uc"
3716 cpuflags="-mcpu=$cpu"
3717 ;;
3718 uc)
3719 subarch="avr32_uc"
3720 cpuflags="-march=$cpu"
3721 ;;
3722 esac
3723
3724 elif enabled bfin; then
3725
3726 cpuflags="-mcpu=$cpu"
3727
3728 elif enabled mips; then
3729
3730 cpuflags="-march=$cpu"
3731
3732 elif enabled ppc; then
3733
3734 disable ldbrx
3735
3736 case $(tolower $cpu) in
3737 601|ppc601|powerpc601)
3738 cpuflags="-mcpu=601"
3739 disable altivec
3740 ;;
3741 603*|ppc603*|powerpc603*)
3742 cpuflags="-mcpu=603"
3743 disable altivec
3744 ;;
3745 604*|ppc604*|powerpc604*)
3746 cpuflags="-mcpu=604"
3747 disable altivec
3748 ;;
3749 g3|75*|ppc75*|powerpc75*)
3750 cpuflags="-mcpu=750"
3751 disable altivec
3752 ;;
3753 g4|745*|ppc745*|powerpc745*)
3754 cpuflags="-mcpu=7450"
3755 disable vsx
3756 ;;
3757 74*|ppc74*|powerpc74*)
3758 cpuflags="-mcpu=7400"
3759 disable vsx
3760 ;;
3761 g5|970|ppc970|powerpc970)
3762 cpuflags="-mcpu=970"
3763 disable vsx
3764 ;;
3765 power[3-6]*)
3766 cpuflags="-mcpu=$cpu"
3767 disable vsx
3768 ;;
3769 power[7-8]*)
3770 cpuflags="-mcpu=$cpu"
3771 enable ldbrx
3772 ;;
3773 cell)
3774 cpuflags="-mcpu=cell"
3775 enable ldbrx
3776 disable vsx
3777 ;;
3778 e500mc)
3779 cpuflags="-mcpu=e500mc"
3780 disable altivec
3781 ;;
3782 e500v2)
3783 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3784 disable altivec
3785 disable dcbzl
3786 ;;
3787 e500)
3788 cpuflags="-mcpu=8540 -mhard-float"
3789 disable altivec
3790 disable dcbzl
3791 ;;
3792 esac
3793
3794 elif enabled sparc; then
3795
3796 case $cpu in
3797 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3798 cpuflags="-mcpu=$cpu"
3799 ;;
3800 ultrasparc*|niagara[234])
3801 cpuflags="-mcpu=$cpu"
3802 ;;
3803 esac
3804
3805 elif enabled x86; then
3806
3807 case $cpu in
3808 i[345]86|pentium)
3809 cpuflags="-march=$cpu"
3810 disable i686
3811 disable mmx
3812 ;;
3813 # targets that do NOT support nopl and conditional mov (cmov)
3814 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3815 cpuflags="-march=$cpu"
3816 disable i686
3817 ;;
3818 # targets that do support nopl and conditional mov (cmov)
3819 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3820 cpuflags="-march=$cpu"
3821 enable i686
3822 enable fast_cmov
3823 ;;
3824 # targets that do support conditional mov but on which it's slow
3825 pentium4|pentium4m|prescott|nocona)
3826 cpuflags="-march=$cpu"
3827 enable i686
3828 disable fast_cmov
3829 ;;
3830 esac
3831
3832 fi
3833
3834 if [ "$cpu" != generic ]; then
3835 add_cflags $cpuflags
3836 add_asflags $cpuflags
3837 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3838 fi
3839
3840 # compiler sanity check
3841 check_exec <<EOF
3842 int main(void){ return 0; }
3843 EOF
3844 if test "$?" != 0; then
3845 echo "$cc is unable to create an executable file."
3846 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3847 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3848 echo "Only do this if you know what cross compiling means."
3849 fi
3850 die "C compiler test failed."
3851 fi
3852
3853 add_cppflags -D_ISOC99_SOURCE
3854
3855 # some compilers silently accept -std=c11, so we also need to check that the
3856 # version macro is defined properly
3857 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3858 add_cflags -std=c11 ||
3859 check_cflags -std=c99
3860
3861 check_cppflags -D_FILE_OFFSET_BITS=64
3862 check_cppflags -D_LARGEFILE_SOURCE
3863
3864 add_host_cppflags -D_ISOC99_SOURCE
3865 check_host_cflags -std=c99
3866 check_host_cflags -Wall
3867 check_host_cflags $host_cflags_speed
3868
3869 check_64bit(){
3870 arch32=$1
3871 arch64=$2
3872 expr=$3
3873 check_code cc "" "int test[2*($expr) - 1]" &&
3874 subarch=$arch64 || subarch=$arch32
3875 }
3876
3877 case "$arch" in
3878 aarch64|alpha|ia64)
3879 spic=$shared
3880 ;;
3881 mips)
3882 check_64bit mips mips64 '_MIPS_SIM > 1'
3883 spic=$shared
3884 ;;
3885 parisc)
3886 check_64bit parisc parisc64 'sizeof(void *) > 4'
3887 spic=$shared
3888 ;;
3889 ppc)
3890 check_64bit ppc ppc64 'sizeof(void *) > 4'
3891 spic=$shared
3892 ;;
3893 s390)
3894 check_64bit s390 s390x 'sizeof(void *) > 4'
3895 spic=$shared
3896 ;;
3897 sparc)
3898 check_64bit sparc sparc64 'sizeof(void *) > 4'
3899 spic=$shared
3900 ;;
3901 x86)
3902 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3903 if test "$subarch" = "x86_64"; then
3904 spic=$shared
3905 fi
3906 ;;
3907 esac
3908
3909 enable $subarch
3910 enabled spic && enable_weak pic
3911
3912 enabled x86_64 && objformat=elf64 || objformat="elf32"
3913
3914 # OS specific
3915 case $target_os in
3916 aix)
3917 SHFLAGS=-shared
3918 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3919 enabled shared && add_ldflags -Wl,-brtl
3920 ;;
3921 android)
3922 disable symver
3923 enable section_data_rel_ro
3924 SLIB_INSTALL_NAME='$(SLIBNAME)'
3925 SLIB_INSTALL_LINKS=
3926 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3927 ;;
3928 haiku)
3929 prefix_default="/boot/common"
3930 network_extralibs="-lnetwork"
3931 host_extralibs=
3932 ;;
3933 sunos)
3934 SHFLAGS='-shared -Wl,-h,$$(@F)'
3935 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3936 network_extralibs="-lsocket -lnsl"
3937 # When using suncc to build, the Solaris linker will mark
3938 # an executable with each instruction set encountered by
3939 # the Solaris assembler. As our libraries contain their own
3940 # guards for processor-specific code, instead suppress
3941 # generation of the HWCAPS ELF section on Solaris x86 only.
3942 enabled_all suncc x86 &&
3943 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3944 add_ldflags -Wl,-M,mapfile
3945 nm_default='nm -P -g'
3946 version_script='-M'
3947 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3948 ;;
3949 netbsd)
3950 disable symver
3951 oss_indev_extralibs="-lossaudio"
3952 oss_outdev_extralibs="-lossaudio"
3953 ;;
3954 openbsd|bitrig)
3955 disable symver
3956 SHFLAGS='-shared'
3957 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3958 SLIB_INSTALL_LINKS=
3959 oss_indev_extralibs="-lossaudio"
3960 oss_outdev_extralibs="-lossaudio"
3961 ;;
3962 dragonfly)
3963 disable symver
3964 ;;
3965 freebsd)
3966 ;;
3967 bsd/os)
3968 add_extralibs -lpoll -lgnugetopt
3969 ;;
3970 darwin)
3971 enabled ppc && add_asflags -force_cpusubtype_ALL
3972 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3973 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3974 add_ldflags -Wl,-dynamic,-search_paths_first
3975 check_cflags -Werror=partial-availability
3976 SLIBSUF=".dylib"
3977 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3978 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3979 enabled x86_64 && objformat="macho64" || objformat="macho32"
3980 enabled_any pic shared ||
3981 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3982 check_header dispatch/dispatch.h &&
3983 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3984 if test -n "$sysroot"; then
3985 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3986 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3987 fi
3988 ;;
3989 msys*)
3990 die "Native MSYS builds are discouraged, please use the MINGW environment."
3991 ;;
3992 mingw32*|mingw64*)
3993 target_os=mingw32
3994 LIBTARGET=i386
3995 if enabled x86_64; then
3996 LIBTARGET="i386:x86-64"
3997 fi
3998 if enabled shared; then
3999 # Cannot build both shared and static libs when using dllexport.
4000 disable static
4001 fi
4002 check_ldflags -Wl,--nxcompat
4003 check_ldflags -Wl,--dynamicbase
4004 shlibdir_default="$bindir_default"
4005 SLIBPREF=""
4006 SLIBSUF=".dll"
4007 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4008 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4009 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4010 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4011 SLIB_INSTALL_LINKS=
4012 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4013 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4014 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4015 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4016 enabled x86_64 && objformat="win64" || objformat="win32"
4017 dlltool="${cross_prefix}dlltool"
4018 ranlib=:
4019 enable dos_paths
4020 ;;
4021 win32|win64)
4022 disable symver
4023 if enabled shared; then
4024 # Link to the import library instead of the normal static library
4025 # for shared libs.
4026 LD_LIB='%.lib'
4027 # Cannot build both shared and static libs with MSVC or icl.
4028 disable static
4029 fi
4030 shlibdir_default="$bindir_default"
4031 SLIBPREF=""
4032 SLIBSUF=".dll"
4033 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4034 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4035 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4036 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4037 SLIB_INSTALL_LINKS=
4038 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4039 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4040 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4041 enabled x86_64 && objformat="win64" || objformat="win32"
4042 ranlib=:
4043 enable dos_paths
4044 ;;
4045 cygwin*)
4046 target_os=cygwin
4047 shlibdir_default="$bindir_default"
4048 SLIBPREF="cyg"
4049 SLIBSUF=".dll"
4050 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4051 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4052 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4053 SLIB_INSTALL_LINKS=
4054 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4055 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4056 enabled x86_64 && objformat="win64" || objformat="win32"
4057 enable dos_paths
4058 ;;
4059 *-dos|freedos|opendos)
4060 network_extralibs="-lsocket"
4061 objformat="coff"
4062 enable dos_paths
4063 add_cppflags -U__STRICT_ANSI__
4064 ;;
4065 linux)
4066 enable dv1394
4067 enable section_data_rel_ro
4068 ;;
4069 irix*)
4070 target_os=irix
4071 ranlib="echo ignoring ranlib"
4072 ;;
4073 os/2*)
4074 ln_s="cp -f"
4075 objformat="aout"
4076 add_cppflags -D_GNU_SOURCE
4077 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4078 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4079 LIBSUF="_s.a"
4080 SLIBPREF=""
4081 SLIBSUF=".dll"
4082 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4083 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4084 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4085 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4086 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4087 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4088 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4089 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4090 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4091 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4092 enable dos_paths
4093 ;;
4094 gnu/kfreebsd)
4095 add_cppflags -D_BSD_SOURCE
4096 ;;
4097 gnu)
4098 ;;
4099 qnx)
4100 add_cppflags -D_QNX_SOURCE
4101 network_extralibs="-lsocket"
4102 ;;
4103 symbian)
4104 SLIBSUF=".dll"
4105 enable dos_paths
4106 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4107 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4108 add_ldflags -Wl,--target1-abs,--no-undefined \
4109 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4110 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4111 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4112 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4113 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4114 ;;
4115 minix)
4116 ;;
4117 none)
4118 ;;
4119 *)
4120 die "Unknown OS '$target_os'."
4121 ;;
4122 esac
4123
4124 # determine libc flavour
4125
4126 probe_libc(){
4127 pfx=$1
4128 pfx_no_=${pfx%_}
4129 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4130 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4131 eval ${pfx}libc_type=uclibc
4132 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4133 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4134 eval ${pfx}libc_type=glibc
4135 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4136 # MinGW headers can be installed on Cygwin, so check for newlib first.
4137 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4138 eval ${pfx}libc_type=newlib
4139 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4140 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4141 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4142 eval ${pfx}libc_type=mingw64
4143 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4144 eval test \$${pfx_no_}cc_type = "gcc" &&
4145 add_${pfx}cppflags -D__printf__=__gnu_printf__
4146 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4147 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4148 eval ${pfx}libc_type=mingw32
4149 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4150 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4151 die "ERROR: MinGW32 runtime version must be >= 3.15."
4152 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4153 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4154 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4155 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4156 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4157 eval test \$${pfx_no_}cc_type = "gcc" &&
4158 add_${pfx}cppflags -D__printf__=__gnu_printf__
4159 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4160 eval ${pfx}libc_type=msvcrt
4161 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4162 if [ "$pfx" = host_ ]; then
4163 add_host_cppflags -Dsnprintf=_snprintf
4164 else
4165 add_compat strtod.o strtod=avpriv_strtod
4166 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4167 _snprintf=avpriv_snprintf \
4168 vsnprintf=avpriv_vsnprintf
4169 fi
4170 fi
4171 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4172 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4173 # 0x601 by default unless something else is set by the user.
4174 # This can easily lead to us detecting functions only present
4175 # in such new versions and producing binaries requiring windows 7.0.
4176 # Therefore explicitly set the default to XP unless the user has
4177 # set something else on the command line.
4178 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4179 # family. For these cases, configure is free to use any functions
4180 # found in the SDK headers by default. (Alternatively, we could force
4181 # _WIN32_WINNT to 0x0602 in that case.)
4182 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4183 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4184 #ifdef WINAPI_FAMILY
4185 #include <winapifamily.h>
4186 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4187 #error not desktop
4188 #endif
4189 #endif
4190 EOF
4191 if [ "$pfx" = "" ]; then
4192 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4193 fi
4194 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4195 eval ${pfx}libc_type=klibc
4196 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4197 eval ${pfx}libc_type=bionic
4198 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4199 eval ${pfx}libc_type=solaris
4200 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4201 else
4202 eval ${pfx}libc_type=default
4203 add_${pfx}cppflags -D_DEFAULT_SOURCE
4204 fi
4205 }
4206
4207 probe_libc
4208 test -n "$libc_type" && enable libc_$libc_type
4209 probe_libc host_
4210 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4211
4212 # hacks for compiler/libc/os combinations
4213
4214 case $libc_type in
4215 bionic)
4216 add_compat strtod.o strtod=avpriv_strtod
4217 ;;
4218 glibc)
4219 if enabled tms470; then
4220 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4221 add_cppflags -D__USER_LABEL_PREFIX__=
4222 add_cppflags -D__builtin_memset=memset
4223 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4224 add_cflags -pds=48 # incompatible redefinition of macro
4225 fi
4226 ;;
4227 esac
4228
4229 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4230 add_cppflags '-I\$(SRC_PATH)/compat/float'
4231
4232 esc(){
4233 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4234 }
4235
4236 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4237
4238 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4239
4240 set_default $PATHS_LIST
4241 set_default nm
4242
4243 # we need to build at least one lib type
4244 if ! enabled_any static shared; then
4245 cat <<EOF
4246 At least one library type must be built.
4247 Specify --enable-static to build the static libraries or --enable-shared to
4248 build the shared libraries as well. To only build the shared libraries specify
4249 --disable-static in addition to --enable-shared.
4250 EOF
4251 exit 1
4252 fi
4253
4254 disabled optimizations || check_cflags -fomit-frame-pointer
4255
4256 enable_weak_pic() {
4257 disabled pic && return
4258 enable pic
4259 add_cppflags -DPIC
4260 case "$target_os" in
4261 mingw*|cygwin*)
4262 ;;
4263 *)
4264 add_cflags -fPIC
4265 ;;
4266 esac
4267 add_asflags -fPIC
4268 }
4269
4270 enabled pic && enable_weak_pic
4271
4272 check_cc <<EOF || die "Symbol mangling check failed."
4273 int ff_extern;
4274 EOF
4275 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4276 extern_prefix=${sym%%ff_extern*}
4277
4278 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4279
4280 _restrict=
4281 for restrict_keyword in restrict __restrict__ __restrict; do
4282 check_cc <<EOF && _restrict=$restrict_keyword && break
4283 void foo(char * $restrict_keyword p);
4284 EOF
4285 done
4286
4287 check_cc <<EOF && enable pragma_deprecated
4288 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4289 EOF
4290
4291 check_cc <<EOF || die "endian test failed"
4292 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4293 EOF
4294 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4295
4296 check_gas() {
4297 log "check_gas using '$as' as AS"
4298 # :vararg is used on aarch64, arm and ppc altivec
4299 check_as <<EOF || return 1
4300 .macro m n, y:vararg=0
4301 \n: .int \y
4302 .endm
4303 m x
4304 EOF
4305 # .altmacro is only used in arm asm
4306 ! enabled arm || check_as <<EOF || return 1
4307 .altmacro
4308 EOF
4309 enable gnu_as
4310 return 0
4311 }
4312
4313 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4314 nogas=:
4315 enabled_any arm aarch64 && nogas=die
4316 enabled_all ppc altivec && nogas=warn
4317 as_noop=-v
4318
4319 case $as_type in
4320 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4321 gcc) gaspp_as_type=gas ;;
4322 *) gaspp_as_type=$as_type ;;
4323 esac
4324
4325 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4326
4327 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4328 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4329
4330 if ! check_gas ; then
4331 as=${gas:=$as}
4332 check_gas || \
4333 $nogas "GNU assembler not found, install/update gas-preprocessor"
4334 fi
4335
4336 check_as <<EOF && enable as_func
4337 .func test
4338 .endfunc
4339 EOF
4340 fi
4341
4342 check_inline_asm inline_asm_labels '"1:\n"'
4343
4344 if enabled aarch64; then
4345 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4346 # internal assembler in clang 3.3 does not support this instruction
4347 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4348 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4349
4350 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4351
4352 elif enabled alpha; then
4353
4354 check_cflags -mieee
4355
4356 elif enabled arm; then
4357
4358 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4359 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4360 enabled thumb && check_cflags -mthumb || check_cflags -marm
4361
4362 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4363 enable vfp_args
4364 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4365 enable vfp_args
4366 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4367 case "${cross_prefix:-$cc}" in
4368 *hardfloat*) enable vfp_args; fpabi=vfp ;;