build: Drop explicit check for dlfcn.h
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-cuvid Nvidia CUVID video decode acceleration
241 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
243 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
244 --enable-libnpp Nvidia CUDA processing
245 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246 --enable-nvenc Nvidia video encoding
247 --enable-omx OpenMAX IL
248 --enable-omx-rpi OpenMAX IL for Raspberry Pi
249 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
250 --enable-vda Apple Video Decode Acceleration [auto]
251 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254 --arch=ARCH select architecture [$arch]
255 --cpu=CPU select the minimum required CPU (affects
256 instruction selection, may crash on older CPUs)
257 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
258 --enable-cross-compile assume a cross-compiler is used
259 --sysroot=PATH root of cross-build tree
260 --sysinclude=PATH location of cross-build system headers
261 --target-os=OS compiler targets OS [$target_os]
262 --target-exec=CMD command to run executables on target
263 --target-path=DIR path to view of build directory on target
264 --target-samples=DIR path to samples directory on target
265 --toolchain=NAME set tool defaults according to NAME
266 --nm=NM use nm tool
267 --ar=AR use archive tool AR [$ar_default]
268 --as=AS use assembler AS [$as_default]
269 --cc=CC use C compiler CC [$cc_default]
270 --objcc=OCC use ObjC compiler OCC [$cc_default]
271 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
272 --ld=LD use linker LD
273 --x86asmexe=X86ASM use x86 assembler X86ASM
274 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
275 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276 --host-cc=HOSTCC use host C compiler HOSTCC
277 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
278 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279 --host-ld=HOSTLD use host linker HOSTLD
280 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
281 --host-libs=HLIBS use libs HLIBS when linking for host
282 --host-os=OS compiler host OS [$target_os]
283 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
284 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
285 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288 --extra-libs=ELIBS add ELIBS [$ELIBS]
289 --extra-version=STRING version string suffix []
290 --optflags=OPTFLAGS override optimization-related compiler flags
291 --enable-pic build position-independent code
292 --enable-thumb compile for Thumb instruction set
293 --enable-lto use link-time optimization
294 --env="ENV=override" override the environment variables
295
296 Advanced options (experts only):
297 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
298 --custom-allocator=NAME use a supported custom allocator
299 --disable-symver disable symbol versioning
300 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301 --disable-safe-bitstream-reader
302 disable buffer boundary checking in bitreaders
303 (faster, but may crash)
304 --enable-sram allow use of on-chip SRAM
305
306 Optimization options (experts only):
307 --disable-asm disable all assembly optimizations
308 --disable-altivec disable AltiVec optimizations
309 --disable-vsx disable VSX optimizations
310 --disable-power8 disable POWER8 optimizations
311 --disable-amd3dnow disable 3DNow! optimizations
312 --disable-amd3dnowext disable 3DNow! extended optimizations
313 --disable-mmx disable MMX optimizations
314 --disable-mmxext disable MMXEXT optimizations
315 --disable-sse disable SSE optimizations
316 --disable-sse2 disable SSE2 optimizations
317 --disable-sse3 disable SSE3 optimizations
318 --disable-ssse3 disable SSSE3 optimizations
319 --disable-sse4 disable SSE4 optimizations
320 --disable-sse42 disable SSE4.2 optimizations
321 --disable-avx disable AVX optimizations
322 --disable-xop disable XOP optimizations
323 --disable-fma3 disable FMA3 optimizations
324 --disable-fma4 disable FMA4 optimizations
325 --disable-avx2 disable AVX2 optimizations
326 --disable-armv5te disable armv5te optimizations
327 --disable-armv6 disable armv6 optimizations
328 --disable-armv6t2 disable armv6t2 optimizations
329 --disable-vfp disable VFP optimizations
330 --disable-neon disable NEON optimizations
331 --disable-inline-asm disable use of inline assembly
332 --disable-x86asm disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335 --disable-debug disable debugging symbols
336 --enable-debug=LEVEL set the debug level [$debuglevel]
337 --disable-optimizations disable compiler optimizations
338 --enable-extra-warnings enable more compiler warnings
339 --samples=PATH location of test samples for FATE, if not set use
340 \$LIBAV_SAMPLES at make invocation time.
341 --enable-neon-clobber-test check NEON registers for clobbering (should be
342 used only for debugging purposes)
343 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344 should be used only for debugging purposes)
345 --enable-random randomly enable/disable components
346 --disable-random
347 --enable-random=LIST randomly enable/disable specific components or
348 --disable-random=LIST component groups. LIST is a comma-separated list
349 of NAME[:PROB] entries where NAME is a component
350 (group) and PROB the probability associated with
351 NAME (default 0.5).
352 --random-seed=VALUE seed value for --enable/disable-random
353 --disable-valgrind-backtrace do not print a backtrace under Valgrind
354 (only applies to --disable-optimizations builds)
355 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
356 in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360 exit 0
361 }
362
363 quotes='""'
364
365 log(){
366 echo "$@" >> $logfile
367 }
368
369 log_file(){
370 log BEGIN $1
371 i=1
372 while read line; do
373 printf '%5s %s\n' "${i}" "${line}"
374 i=$(($i+1))
375 done < $1 >> $logfile
376 log END $1
377 }
378
379 echolog(){
380 log "$@"
381 echo "$@"
382 }
383
384 warn(){
385 log "WARNING: $*"
386 WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390 echolog "$@"
391 cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git. If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397 if disabled logging; then
398 cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402 else
403 cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407 fi
408 exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421 echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425 v=$(echo "$1" | sed "s/'/'\\\\''/g")
426 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427 echo "$v"
428 }
429
430 cleanws(){
431 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
432 }
433
434 filter(){
435 pat=$1
436 shift
437 for v; do
438 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439 done
440 }
441
442 filter_out(){
443 pat=$1
444 shift
445 for v; do
446 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447 done
448 }
449
450 map(){
451 m=$1
452 shift
453 for v; do eval $m; done
454 }
455
456 add_suffix(){
457 suffix=$1
458 shift
459 for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463 value=$1
464 shift
465 for var in $*; do
466 eval $var=$value
467 done
468 }
469
470 set_weak(){
471 value=$1
472 shift
473 for var; do
474 eval : \${$var:=$value}
475 done
476 }
477
478 sanitize_var_name(){
479 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483 var=$1
484 shift
485 eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489 eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:=0}
495 eval ${pvar}_${level}="\$$pvar"
496 eval ${pvar}_level=$(($level+1))
497 done
498 }
499
500 popvar(){
501 for pvar in $*; do
502 eval level=\${${pvar}_level:-0}
503 test $level = 0 && continue
504 eval level=$(($level-1))
505 eval $pvar="\${${pvar}_${level}}"
506 eval ${pvar}_level=$level
507 eval unset ${pvar}_${level}
508 done
509 }
510
511 enable(){
512 set_all yes $*
513 }
514
515 disable(){
516 set_all no $*
517 }
518
519 enable_weak(){
520 set_weak yes $*
521 }
522
523 disable_weak(){
524 set_weak no $*
525 }
526
527 enable_sanitized(){
528 for var; do
529 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 disable_sanitized(){
534 for var; do
535 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536 done
537 }
538
539 do_enable_deep(){
540 for var; do
541 enabled $var && continue
542 eval sel="\$${var}_select"
543 eval sgs="\$${var}_suggest"
544 pushvar var sgs
545 enable_deep $sel
546 popvar sgs
547 enable_deep_weak $sgs
548 popvar var
549 done
550 }
551
552 enable_deep(){
553 do_enable_deep $*
554 enable $*
555 }
556
557 enable_deep_weak(){
558 for var; do
559 disabled $var && continue
560 pushvar var
561 do_enable_deep $var
562 popvar var
563 enable_weak $var
564 done
565 }
566
567 enabled(){
568 test "${1#!}" = "$1" && op== || op=!=
569 eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573 test "${1#!}" = "$1" && op== || op=!=
574 eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578 for opt; do
579 enabled $opt || return 1
580 done
581 }
582
583 disabled_all(){
584 for opt; do
585 disabled $opt || return 1
586 done
587 }
588
589 enabled_any(){
590 for opt; do
591 enabled $opt && return 0
592 done
593 }
594
595 disabled_any(){
596 for opt; do
597 disabled $opt && return 0
598 done
599 return 1
600 }
601
602 set_default(){
603 for opt; do
604 eval : \${$opt:=\$${opt}_default}
605 done
606 }
607
608 is_in(){
609 value=$1
610 shift
611 for var in $*; do
612 [ $var = $value ] && return 0
613 done
614 return 1
615 }
616
617 check_deps(){
618 for cfg; do
619 enabled ${cfg}_checking && die "Circular dependency for $cfg."
620 disabled ${cfg}_checking && continue
621 enable ${cfg}_checking
622
623 eval dep_all="\$${cfg}_deps"
624 eval dep_any="\$${cfg}_deps_any"
625 eval dep_con="\$${cfg}_conflict"
626 eval dep_sel="\$${cfg}_select"
627 eval dep_sgs="\$${cfg}_suggest"
628 eval dep_ifa="\$${cfg}_if"
629 eval dep_ifn="\$${cfg}_if_any"
630
631 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637 enabled_all $dep_all || disable $cfg
638 enabled_any $dep_any || disable $cfg
639 disabled_all $dep_con || disable $cfg
640 disabled_any $dep_sel && disable $cfg
641
642 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645 # filter out library deps, these do not belong in extralibs
646 is_in $dep $LIBRARY_LIST && continue
647 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648 done
649
650 disable ${cfg}_checking
651 done
652 }
653
654 print_config(){
655 pfx=$1
656 files=$2
657 shift 2
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
660 {
661 c = \"$pfx\" toupper(\$1);
662 v = \$2;
663 sub(/yes/, 1, v);
664 sub(/no/, 0, v);
665 for (f in files) {
666 file = files[f];
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
674 }
675 }
676 }"
677 }
678
679 print_enabled(){
680 suf=$1
681 shift
682 for v; do
683 enabled $v && printf "%s\n" ${v%$suf}
684 done
685 }
686
687 append(){
688 var=$1
689 shift
690 eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694 var=$1
695 shift
696 eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700 var=$1
701 uniq_list=""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
704 done
705 eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709 var=$1
710 tmpvar=
711 for entry in $(eval echo \$$var); do
712 tmpvar="$tmpvar $(eval echo \$${entry})"
713 done
714 eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718 append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722 append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726 append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730 append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734 append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738 append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742 append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746 append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750 append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754 prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758 append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762 append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766 append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770 append compat_objs $1
771 shift
772 map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776 log "$@"
777 "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781 eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785 eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789 log check_cc "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796 log check_objcc "$@"
797 cat > $TMPC
798 log_file $TMPC
799 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803 log check_cpp "$@"
804 cat > $TMPC
805 log_file $TMPC
806 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810 eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814 log check_as "$@"
815 cat > $TMPS
816 log_file $TMPS
817 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821 log check_inline_asm "$@"
822 name="$1"
823 code="$2"
824 shift 2
825 disable $name
826 check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832 log check_insn "$@"
833 check_inline_asm ${1}_inline "\"$2\""
834 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838 log check_x86asm "$@"
839 echo "$1" > $TMPS
840 log_file $TMPS
841 shift 1
842 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846 eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850 log check_ld "$@"
851 flags=$(filter_out '-l*' "$@")
852 libs=$(filter '-l*' "$@")
853 check_cc $($cflags_filter $flags) || return
854 flags=$($ldflags_filter $flags)
855 libs=$($ldflags_filter $libs)
856 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860 hdr=$1
861 test "${hdr%.h}" = "${hdr}" &&
862 echo "#include $hdr" ||
863 echo "#include <$hdr>"
864 }
865
866 check_code(){
867 log check_code "$@"
868 check=$1
869 headers=$2
870 code=$3
871 shift 3
872 {
873 for hdr in $headers; do
874 print_include $hdr
875 done
876 echo "int main(void) { $code; return 0; }"
877 } | check_$check "$@"
878 }
879
880 check_cppflags(){
881 log check_cppflags "$@"
882 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888 log test_cflags "$@"
889 set -- $($cflags_filter "$@")
890 check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896 log check_cflags "$@"
897 test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901 log test_objcflags "$@"
902 set -- $($objcflags_filter "$@")
903 check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909 log check_objcflags "$@"
910 test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914 log test_ldflags "$@"
915 check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921 log check_ldflags "$@"
922 test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926 log test_stripflags "$@"
927 # call check_cc to get a fresh TMPO
928 check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931 check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935 log check_stripflags "$@"
936 test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940 log check_header "$@"
941 header=$1
942 shift
943 disable_sanitized $header
944 check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951 log check_func "$@"
952 func=$1
953 shift
954 disable $func
955 check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962 log check_mathfunc "$@"
963 func=$1
964 narg=$2
965 shift 2
966 test $narg = 2 && args="f, g" || args="f"
967 disable $func
968 check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976 log check_func_headers "$@"
977 headers=$1
978 funcs=$2
979 shift 2
980 {
981 for hdr in $headers; do
982 print_include $hdr
983 done
984 for func in $funcs; do
985 echo "long check_$func(void) { return (long) $func; }"
986 done
987 echo "int main(void) { return 0; }"
988 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992 log check_cpp_condition "$@"
993 header=$1
994 condition=$2
995 shift 2
996 check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005 log test_cflags_cpp "$@"
1006 flags=$1
1007 condition=$2
1008 shift 2
1009 set -- $($cflags_filter "$flags")
1010 check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018 log check_lib "$@"
1019 name="$1"
1020 headers="$2"
1021 funcs="$3"
1022 shift 3
1023 disable $name
1024 check_func_headers "$headers" "$funcs" "$@" &&
1025 enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 test_pkg_config(){
1029 log test_pkg_config "$@"
1030 name="$1"
1031 pkg_version="$2"
1032 pkg="${2%% *}"
1033 headers="$3"
1034 funcs="$4"
1035 shift 4
1036 disable $name
1037 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041 enable $name &&
1042 set_sanitized "${name}_cflags" $pkg_cflags &&
1043 set_sanitized "${name}_extralibs" $pkg_libs
1044 }
1045
1046 check_pkg_config(){
1047 log check_pkg_config "$@"
1048 name="$1"
1049 test_pkg_config "$@" &&
1050 eval add_cflags \$${name}_cflags
1051 }
1052
1053 check_exec(){
1054 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1055 }
1056
1057 check_exec_crash(){
1058 log check_exec_crash "$@"
1059 code=$(cat)
1060
1061 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1062 # are safe but may not be available everywhere. Thus we use
1063 # raise(SIGTERM) instead. The check is run in a subshell so we
1064 # can redirect the "Terminated" message from the shell. SIGBUS
1065 # is not defined by standard C so it is used conditionally.
1066
1067 (check_exec "$@") >> $logfile 2>&1 <<EOF
1068 #include <signal.h>
1069 static void sighandler(int sig){
1070 raise(SIGTERM);
1071 }
1072 int foo(void){
1073 $code
1074 }
1075 int (*func_ptr)(void) = foo;
1076 int main(void){
1077 signal(SIGILL, sighandler);
1078 signal(SIGFPE, sighandler);
1079 signal(SIGSEGV, sighandler);
1080 #ifdef SIGBUS
1081 signal(SIGBUS, sighandler);
1082 #endif
1083 return func_ptr();
1084 }
1085 EOF
1086 }
1087
1088 check_type(){
1089 log check_type "$@"
1090 headers=$1
1091 type=$2
1092 shift 2
1093 disable_sanitized "$type"
1094 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1095 }
1096
1097 check_struct(){
1098 log check_struct "$@"
1099 headers=$1
1100 struct=$2
1101 member=$3
1102 shift 3
1103 disable_sanitized "${struct}_${member}"
1104 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1105 enable_sanitized "${struct}_${member}"
1106 }
1107
1108 check_builtin(){
1109 log check_builtin "$@"
1110 name=$1
1111 headers=$2
1112 builtin=$3
1113 shift 3
1114 disable "$name"
1115 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1116 }
1117
1118 check_compile_assert(){
1119 log check_compile_assert "$@"
1120 name=$1
1121 headers=$2
1122 condition=$3
1123 shift 3
1124 disable "$name"
1125 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1126 }
1127
1128 require(){
1129 log require "$@"
1130 name_version="$1"
1131 name="${1%% *}"
1132 headers="$2"
1133 func="$3"
1134 shift 3
1135 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1136 }
1137
1138 require_header(){
1139 log require "$@"
1140 header="$1"
1141 shift
1142 check_header "$header" "$@" || die "ERROR: $header not found"
1143 }
1144
1145 require_cpp_condition(){
1146 log require "$@"
1147 header="$1"
1148 condition="$2"
1149 shift 2
1150 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1151 }
1152
1153 require_pkg_config(){
1154 log require_pkg_config "$@"
1155 pkg_version="$2"
1156 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1157 }
1158
1159 hostcc_e(){
1160 eval printf '%s\\n' $HOSTCC_E
1161 }
1162
1163 hostcc_o(){
1164 eval printf '%s\\n' $HOSTCC_O
1165 }
1166
1167 check_host_cc(){
1168 log check_host_cc "$@"
1169 cat > $TMPC
1170 log_file $TMPC
1171 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1172 }
1173
1174 check_host_cpp(){
1175 log check_host_cpp "$@"
1176 cat > $TMPC
1177 log_file $TMPC
1178 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1179 }
1180
1181 check_host_cppflags(){
1182 log check_host_cppflags "$@"
1183 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1184 #include <stdlib.h>;
1185 EOF
1186 }
1187
1188 check_host_cflags(){
1189 log check_host_cflags "$@"
1190 set -- $($host_cflags_filter "$@")
1191 check_host_cc "$@" <<EOF && append host_cflags "$@"
1192 int x;
1193 EOF
1194 }
1195
1196 check_host_cpp_condition(){
1197 log check_host_cpp_condition "$@"
1198 header=$1
1199 condition=$2
1200 shift 2
1201 check_host_cpp "$@" <<EOF
1202 #include <$header>
1203 #if !($condition)
1204 #error "unsatisfied condition: $condition"
1205 #endif
1206 EOF
1207 }
1208
1209 apply(){
1210 file=$1
1211 shift
1212 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1213 }
1214
1215 cp_if_changed(){
1216 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1217 mkdir -p "$(dirname $2)"
1218 cp -f "$1" "$2"
1219 }
1220
1221 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1222 # system-dependent things.
1223
1224 AVCODEC_COMPONENTS="
1225 bsfs
1226 decoders
1227 encoders
1228 hwaccels
1229 parsers
1230 "
1231
1232 AVDEVICE_COMPONENTS="
1233 indevs
1234 outdevs
1235 "
1236 AVFILTER_COMPONENTS="
1237 filters
1238 "
1239 AVFORMAT_COMPONENTS="
1240 demuxers
1241 muxers
1242 protocols
1243 "
1244
1245 AVRESAMPLE_COMPONENTS=""
1246 AVUTIL_COMPONENTS=""
1247
1248 COMPONENT_LIST="
1249 $AVCODEC_COMPONENTS
1250 $AVDEVICE_COMPONENTS
1251 $AVFILTER_COMPONENTS
1252 $AVFORMAT_COMPONENTS
1253 $AVRESAMPLE_COMPONENTS
1254 $AVUTIL_COMPONENTS
1255 "
1256
1257 EXAMPLE_LIST="
1258 decode_audio_example
1259 decode_video_example
1260 encode_audio_example
1261 encode_video_example
1262 filter_audio_example
1263 metadata_example
1264 output_example
1265 qsvdec_example
1266 transcode_aac_example
1267 "
1268
1269 # catchall list of things that require external libs to link
1270 EXTRALIBS_LIST="
1271 cpu_init
1272 cws2fws
1273 "
1274
1275 HWACCEL_LIBRARY_NONFREE_LIST="
1276 cuda
1277 cuvid
1278 libnpp
1279 "
1280 HWACCEL_LIBRARY_LIST="
1281 $HWACCEL_LIBRARY_NONFREE_LIST
1282 d3d11va
1283 dxva2
1284 libmfx
1285 mmal
1286 nvenc
1287 omx
1288 vaapi
1289 vda
1290 vdpau
1291 "
1292
1293 EXTERNAL_LIBRARY_GPL_LIST="
1294 libcdio
1295 libx264
1296 libx265
1297 libxavs
1298 libxvid
1299 "
1300
1301 EXTERNAL_LIBRARY_NONFREE_LIST="
1302 libfaac
1303 libfdk_aac
1304 openssl
1305 "
1306
1307 EXTERNAL_LIBRARY_VERSION3_LIST="
1308 libopencore_amrnb
1309 libopencore_amrwb
1310 libvo_aacenc
1311 libvo_amrwbenc
1312 "
1313
1314 EXTERNAL_LIBRARY_LIST="
1315 $EXTERNAL_LIBRARY_GPL_LIST
1316 $EXTERNAL_LIBRARY_NONFREE_LIST
1317 $EXTERNAL_LIBRARY_VERSION3_LIST
1318 avisynth
1319 avxsynth
1320 frei0r
1321 gnutls
1322 libbs2b
1323 libdc1394
1324 libdcadec
1325 libfontconfig
1326 libfreetype
1327 libgsm
1328 libhdcd
1329 libilbc
1330 libjack
1331 libkvazaar
1332 libmp3lame
1333 libopencv
1334 libopenh264
1335 libopenjpeg
1336 libopus
1337 libpulse
1338 librtmp
1339 libschroedinger
1340 libsnappy
1341 libspeex
1342 libtheora
1343 libtwolame
1344 libvorbis
1345 libvpx
1346 libwavpack
1347 libwebp
1348 libxcb
1349 libxcb_shm
1350 libxcb_xfixes
1351 "
1352
1353 SYSTEM_LIBRARY_LIST="
1354 bzlib
1355 zlib
1356 "
1357
1358 FEATURE_LIST="
1359 gray
1360 hardcoded_tables
1361 omx_rpi
1362 runtime_cpudetect
1363 safe_bitstream_reader
1364 shared
1365 small
1366 sram
1367 static
1368 swscale_alpha
1369 "
1370
1371 LIBRARY_LIST="
1372 avcodec
1373 avdevice
1374 avfilter
1375 avformat
1376 avresample
1377 avutil
1378 swscale
1379 "
1380
1381 LICENSE_LIST="
1382 gpl
1383 nonfree
1384 version3
1385 "
1386
1387 PROGRAM_LIST="
1388 avconv
1389 avplay
1390 avprobe
1391 "
1392
1393 SUBSYSTEM_LIST="
1394 dct
1395 doc
1396 error_resilience
1397 faan
1398 fft
1399 lsp
1400 lzo
1401 mdct
1402 network
1403 rdft
1404 "
1405
1406 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1407 CONFIG_LIST="
1408 $EXAMPLE_LIST
1409 $EXTERNAL_LIBRARY_LIST
1410 $HWACCEL_LIBRARY_LIST
1411 $FEATURE_LIST
1412 $LICENSE_LIST
1413 $LIBRARY_LIST
1414 $PROGRAM_LIST
1415 $SUBSYSTEM_LIST
1416 $SYSTEM_LIBRARY_LIST
1417 neon_clobber_test
1418 pic
1419 pod2man
1420 texi2html
1421 thumb
1422 valgrind_backtrace
1423 xmm_clobber_test
1424 $COMPONENT_LIST
1425 "
1426
1427 THREADS_LIST="
1428 pthreads
1429 w32threads
1430 "
1431
1432 ATOMICS_LIST="
1433 atomics_gcc
1434 atomics_suncc
1435 atomics_win32
1436 "
1437
1438 ARCH_LIST="
1439 aarch64
1440 alpha
1441 arm
1442 avr32
1443 avr32_ap
1444 avr32_uc
1445 bfin
1446 ia64
1447 m68k
1448 mips
1449 mips64
1450 parisc
1451 ppc
1452 ppc64
1453 s390
1454 sh4
1455 sparc
1456 sparc64
1457 tilegx
1458 tilepro
1459 tomi
1460 x86
1461 x86_32
1462 x86_64
1463 "
1464
1465 ARCH_EXT_LIST_ARM="
1466 armv5te
1467 armv6
1468 armv6t2
1469 armv8
1470 neon
1471 vfp
1472 vfpv3
1473 "
1474
1475 ARCH_EXT_LIST_X86_SIMD="
1476 amd3dnow
1477 amd3dnowext
1478 avx
1479 avx2
1480 fma3
1481 fma4
1482 mmx
1483 mmxext
1484 sse
1485 sse2
1486 sse3
1487 sse4
1488 sse42
1489 ssse3
1490 xop
1491 "
1492
1493 ARCH_EXT_LIST_PPC="
1494 altivec
1495 dcbzl
1496 ldbrx
1497 power8
1498 ppc4xx
1499 vsx
1500 "
1501
1502 ARCH_EXT_LIST_X86="
1503 $ARCH_EXT_LIST_X86_SIMD
1504 cpunop
1505 i686
1506 "
1507
1508 ARCH_EXT_LIST_MIPS="
1509 loongson
1510 mips32r1
1511 mips64r1
1512 mips32r2
1513 mips64r2
1514 mips32r6
1515 mips64r6
1516 "
1517
1518 ARCH_EXT_LIST="
1519 $ARCH_EXT_LIST_ARM
1520 $ARCH_EXT_LIST_MIPS
1521 $ARCH_EXT_LIST_PPC
1522 $ARCH_EXT_LIST_X86
1523 vis
1524 "
1525
1526 ARCH_FEATURES="
1527 aligned_stack
1528 fast_64bit
1529 fast_clz
1530 fast_cmov
1531 local_aligned_8
1532 local_aligned_16
1533 local_aligned_32
1534 simd_align_16
1535 simd_align_32
1536 "
1537
1538 BUILTIN_LIST="
1539 atomic_cas_ptr
1540 machine_rw_barrier
1541 MemoryBarrier
1542 mm_empty
1543 rdtsc
1544 sem_timedwait
1545 sync_val_compare_and_swap
1546 "
1547 HAVE_LIST_CMDLINE="
1548 inline_asm
1549 symver
1550 x86asm
1551 "
1552
1553 HAVE_LIST_PUB="
1554 bigendian
1555 fast_unaligned
1556 "
1557
1558 HEADERS_LIST="
1559 AVFoundation_AVFoundation_h
1560 arpa_inet_h
1561 cdio_paranoia_h
1562 cdio_paranoia_paranoia_h
1563 d3d11_h
1564 dispatch_dispatch_h
1565 dev_bktr_ioctl_bt848_h
1566 dev_bktr_ioctl_meteor_h
1567 dev_ic_bt8xx_h
1568 dev_video_bktr_ioctl_bt848_h
1569 dev_video_meteor_ioctl_meteor_h
1570 direct_h
1571 dxgidebug_h
1572 dxva_h
1573 gsm_h
1574 io_h
1575 mach_mach_time_h
1576 machine_ioctl_bt848_h
1577 machine_ioctl_meteor_h
1578 malloc_h
1579 poll_h
1580 soundcard_h
1581 stdatomic_h
1582 sys_mman_h
1583 sys_param_h
1584 sys_resource_h
1585 sys_select_h
1586 sys_soundcard_h
1587 sys_time_h
1588 sys_un_h
1589 sys_videoio_h
1590 unistd_h
1591 valgrind_valgrind_h
1592 windows_h
1593 winsock2_h
1594 "
1595
1596 INTRINSICS_LIST="
1597 intrinsics_neon
1598 "
1599
1600 MATH_FUNCS="
1601 atanf
1602 atan2f
1603 cbrtf
1604 cosf
1605 exp2
1606 exp2f
1607 expf
1608 isinf
1609 isnan
1610 ldexpf
1611 llrint
1612 llrintf
1613 log2
1614 log2f
1615 log10f
1616 lrint
1617 lrintf
1618 powf
1619 rint
1620 round
1621 roundf
1622 sinf
1623 trunc
1624 truncf
1625 "
1626
1627 SYSTEM_FUNCS="
1628 aligned_malloc
1629 clock_gettime
1630 closesocket
1631 CommandLineToArgvW
1632 CryptGenRandom
1633 fcntl
1634 fork
1635 getaddrinfo
1636 gethrtime
1637 getopt
1638 GetProcessAffinityMask
1639 GetProcessMemoryInfo
1640 GetProcessTimes
1641 getrusage
1642 GetSystemTimeAsFileTime
1643 gettimeofday
1644 gmtime_r
1645 inet_aton
1646 isatty
1647 localtime_r
1648 mach_absolute_time
1649 MapViewOfFile
1650 memalign
1651 mmap
1652 mprotect
1653 nanosleep
1654 posix_memalign
1655 sched_getaffinity
1656 SetConsoleTextAttribute
1657 setmode
1658 setrlimit
1659 Sleep
1660 strerror_r
1661 sysconf
1662 sysctl
1663 usleep
1664 VirtualAlloc
1665 "
1666
1667 TOOLCHAIN_FEATURES="
1668 as_arch_directive
1669 as_fpu_directive
1670 as_func
1671 as_object_arch
1672 asm_mod_q
1673 attribute_may_alias
1674 attribute_packed
1675 blocks_extension
1676 ebp_available
1677 ebx_available
1678 gnu_as
1679 ibm_asm
1680 inline_asm_labels
1681 pragma_deprecated
1682 symver_asm_label
1683 symver_gnu_asm
1684 vfp_args
1685 xform_asm
1686 xmm_clobbers
1687 "
1688
1689 TYPES_LIST="
1690 CONDITION_VARIABLE_Ptr
1691 CUVIDDECODECREATEINFO_bitDepthMinus8
1692 socklen_t
1693 struct_addrinfo
1694 struct_group_source_req
1695 struct_ip_mreq_source
1696 struct_ipv6_mreq
1697 struct_pollfd
1698 struct_rusage_ru_maxrss
1699 struct_sockaddr_in6
1700 struct_sockaddr_sa_len
1701 struct_sockaddr_storage
1702 struct_v4l2_frmivalenum_discrete
1703 "
1704
1705 HAVE_LIST="
1706 $ARCH_EXT_LIST
1707 $(add_suffix _external $ARCH_EXT_LIST)
1708 $(add_suffix _inline $ARCH_EXT_LIST)
1709 $ARCH_FEATURES
1710 $BUILTIN_LIST
1711 $HAVE_LIST_CMDLINE
1712 $HAVE_LIST_PUB
1713 $HEADERS_LIST
1714 $INTRINSICS_LIST
1715 $MATH_FUNCS
1716 $SYSTEM_FUNCS
1717 $THREADS_LIST
1718 $TOOLCHAIN_FEATURES
1719 $TYPES_LIST
1720 dos_paths
1721 libc_msvcrt
1722 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1723 sdl
1724 section_data_rel_ro
1725 threads
1726 uwp
1727 vaapi_drm
1728 vaapi_x11
1729 vdpau_x11
1730 "
1731
1732 # options emitted with CONFIG_ prefix but not available on the command line
1733 CONFIG_EXTRA="
1734 aandcttables
1735 ac3dsp
1736 adts_header
1737 audio_frame_queue
1738 audiodsp
1739 blockdsp
1740 bswapdsp
1741 cabac
1742 cbs
1743 cbs_h264
1744 cbs_h265
1745 cbs_mpeg2
1746 dirac_parse
1747 dvprofile
1748 faandct
1749 faanidct
1750 fdctdsp
1751 flacdsp
1752 fmtconvert
1753 g722dsp
1754 gmp
1755 golomb
1756 gplv3
1757 h263dsp
1758 h264chroma
1759 h264dsp
1760 h264parse
1761 h264pred
1762 h264qpel
1763 hevcparse
1764 hpeldsp
1765 huffman
1766 huffyuvdsp
1767 huffyuvencdsp
1768 idctdsp
1769 iirfilter
1770 imdct15
1771 intrax8
1772 iso_media
1773 ividsp
1774 jpegtables
1775 lgplv3
1776 libx262
1777 libxcb_shape
1778 lpc
1779 lzf
1780 me_cmp
1781 mpeg_er
1782 mpegaudio
1783 mpegaudiodsp
1784 mpegaudioheader
1785 mpegvideo
1786 mpegvideoenc
1787 mss34dsp
1788 pixblockdsp
1789 qpeldsp
1790 qsv
1791 qsvdec
1792 qsvenc
1793 qsvvpp
1794 rangecoder
1795 riffdec
1796 riffenc
1797 rtpdec
1798 rtpenc_chain
1799 rv34dsp
1800 sinewin
1801 snappy
1802 srtp
1803 startcode
1804 texturedsp
1805 texturedspenc
1806 tpeldsp
1807 vaapi_encode
1808 vc1dsp
1809 videodsp
1810 vp3dsp
1811 vp56dsp
1812 vp8dsp
1813 wma_freqs
1814 wmv2dsp
1815 "
1816
1817 CMDLINE_SELECT="
1818 $ARCH_EXT_LIST
1819 $CONFIG_LIST
1820 $HAVE_LIST_CMDLINE
1821 $THREADS_LIST
1822 asm
1823 cross_compile
1824 debug
1825 extra_warnings
1826 logging
1827 lto
1828 optimizations
1829 rpath
1830 "
1831
1832 PATHS_LIST="
1833 bindir
1834 datadir
1835 docdir
1836 incdir
1837 libdir
1838 mandir
1839 prefix
1840 shlibdir
1841 "
1842
1843 CMDLINE_SET="
1844 $PATHS_LIST
1845 ar
1846 arch
1847 as
1848 cc
1849 objcc
1850 cpu
1851 cross_prefix
1852 custom_allocator
1853 dep_cc
1854 env
1855 extra_version
1856 host_cc
1857 host_cflags
1858 host_extralibs
1859 host_ld
1860 host_ldflags
1861 host_os
1862 ignore_tests
1863 ld
1864 logfile
1865 malloc_prefix
1866 nm
1867 optflags
1868 pkg_config
1869 pkg_config_flags
1870 random_seed
1871 samples
1872 sysinclude
1873 sysroot
1874 target_exec
1875 target_os
1876 target_path
1877 target_samples
1878 toolchain
1879 x86asmexe
1880 "
1881
1882 CMDLINE_APPEND="
1883 extra_cflags
1884 extra_objcflags
1885 host_cppflags
1886 "
1887
1888 # code dependency declarations
1889
1890 # architecture extensions
1891
1892 armv5te_deps="arm"
1893 armv6_deps="arm"
1894 armv6t2_deps="arm"
1895 armv8_deps="aarch64"
1896 neon_deps_any="aarch64 arm"
1897 intrinsics_neon_deps="neon"
1898 vfp_deps_any="aarch64 arm"
1899 vfpv3_deps="vfp"
1900
1901 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1902
1903 altivec_deps="ppc"
1904 dcbzl_deps="ppc"
1905 ldbrx_deps="ppc"
1906 ppc4xx_deps="ppc"
1907 vsx_deps="altivec"
1908 power8_deps="vsx"
1909
1910 loongson_deps="mips"
1911 mips32r1_deps="mips32"
1912 mips32r2_deps="mips32"
1913 mips32r6_deps="mips32"
1914 mips64r1_deps="mips64"
1915 mips64r2_deps="mips64"
1916 mips64r6_deps="mips64"
1917
1918 vis_deps="sparc"
1919
1920 cpunop_deps="i686"
1921 x86_64_select="i686"
1922 x86_64_suggest="fast_cmov"
1923
1924 amd3dnow_deps="mmx"
1925 amd3dnowext_deps="amd3dnow"
1926 i686_deps="x86"
1927 mmx_deps="x86"
1928 mmxext_deps="mmx"
1929 sse_deps="mmxext"
1930 sse2_deps="sse"
1931 sse3_deps="sse2"
1932 ssse3_deps="sse3"
1933 sse4_deps="ssse3"
1934 sse42_deps="sse4"
1935 avx_deps="sse42"
1936 xop_deps="avx"
1937 fma3_deps="avx"
1938 fma4_deps="avx"
1939 avx2_deps="avx"
1940
1941 mmx_external_deps="x86asm"
1942 mmx_inline_deps="inline_asm x86"
1943 mmx_suggest="mmx_external mmx_inline"
1944
1945 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1946 eval dep=\$${ext}_deps
1947 eval ${ext}_external_deps='"${dep}_external"'
1948 eval ${ext}_inline_deps='"${dep}_inline"'
1949 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1950 done
1951
1952 aligned_stack_if_any="aarch64 ppc x86"
1953 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1954 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1955 fast_unaligned_if_any="aarch64 ppc x86"
1956 simd_align_16_if_any="altivec neon sse"
1957 simd_align_32_if_any="avx"
1958
1959 # system capabilities
1960 symver_if_any="symver_asm_label symver_gnu_asm"
1961 valgrind_backtrace_conflict="optimizations"
1962 valgrind_backtrace_deps="valgrind_valgrind_h"
1963
1964 # threading support
1965 atomics_gcc_if="sync_val_compare_and_swap"
1966 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1967 atomics_win32_if="MemoryBarrier"
1968 atomics_native_if_any="$ATOMICS_LIST"
1969 w32threads_deps="atomics_native"
1970 threads_if_any="$THREADS_LIST"
1971
1972 # subsystems
1973 cbs_h264_select="cbs golomb"
1974 cbs_h265_select="cbs golomb"
1975 cbs_mpeg2_select="cbs"
1976 dct_select="rdft"
1977 dirac_parse_select="golomb"
1978 error_resilience_select="me_cmp"
1979 faandct_deps="faan"
1980 faandct_select="fdctdsp"
1981 faanidct_deps="faan"
1982 faanidct_select="idctdsp"
1983 h264dsp_select="startcode"
1984 hevcparse_select="golomb"
1985 intrax8_select="blockdsp idctdsp"
1986 mdct_select="fft"
1987 rdft_select="fft"
1988 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1989 mpeg_er_select="error_resilience"
1990 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1991 mpegaudiodsp_select="dct"
1992 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1993 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1994 vc1dsp_select="h264chroma qpeldsp startcode"
1995
1996 # decoders / encoders
1997 aac_decoder_select="adts_header imdct15 mdct sinewin"
1998 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1999 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2000 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2001 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2002 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2003 adpcm_g722_decoder_select="g722dsp"
2004 adpcm_g722_encoder_select="g722dsp"
2005 aic_decoder_select="golomb idctdsp"
2006 alac_encoder_select="lpc"
2007 als_decoder_select="bswapdsp"
2008 amrnb_decoder_select="lsp"
2009 amrwb_decoder_select="lsp"
2010 amv_decoder_select="sp5x_decoder"
2011 ape_decoder_select="bswapdsp"
2012 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2013 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2014 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2015 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2016 atrac1_decoder_select="mdct sinewin"
2017 atrac3_decoder_select="mdct"
2018 atrac3p_decoder_select="mdct sinewin"
2019 bink_decoder_select="blockdsp hpeldsp"
2020 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2021 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2022 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2023 clearvideo_decoder_select="idctdsp"
2024 cllc_decoder_select="bswapdsp"
2025 comfortnoise_encoder_select="lpc"
2026 cook_decoder_select="audiodsp mdct sinewin"
2027 cscd_decoder_select="lzo"
2028 cscd_decoder_suggest="zlib"
2029 dca_decoder_select="fmtconvert mdct"
2030 dds_decoder_select="texturedsp"
2031 dnxhd_decoder_select="blockdsp idctdsp"
2032 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2033 dvvideo_decoder_select="dvprofile idctdsp"
2034 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2035 dxa_decoder_deps="zlib"
2036 dxv_decoder_select="lzf texturedsp"
2037 eac3_decoder_select="ac3_decoder"
2038 eac3_encoder_select="ac3_encoder"
2039 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2040 eatgq_decoder_select="aandcttables idctdsp"
2041 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2042 exr_decoder_deps="zlib"
2043 ffv1_decoder_select="rangecoder"
2044 ffv1_encoder_select="rangecoder"
2045 ffvhuff_decoder_select="huffyuv_decoder"
2046 ffvhuff_encoder_select="huffyuv_encoder"
2047 fic_decoder_select="golomb"
2048 flac_decoder_select="flacdsp"
2049 flac_encoder_select="bswapdsp flacdsp lpc"
2050 flashsv_decoder_deps="zlib"
2051 flashsv_encoder_deps="zlib"
2052 flashsv2_decoder_deps="zlib"
2053 flv_decoder_select="h263_decoder"
2054 flv_encoder_select="h263_encoder"
2055 fourxm_decoder_select="blockdsp bswapdsp"
2056 fraps_decoder_select="bswapdsp huffman"
2057 g2m_decoder_deps="zlib"
2058 g2m_decoder_select="blockdsp idctdsp jpegtables"
2059 h261_decoder_select="mpeg_er mpegvideo"
2060 h261_encoder_select="aandcttables mpegvideoenc"
2061 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2062 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2063 h263i_decoder_select="h263_decoder"
2064 h263p_encoder_select="h263_encoder"
2065 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2066 h264_decoder_suggest="error_resilience"
2067 hap_decoder_select="snappy texturedsp"
2068 hap_encoder_deps="libsnappy"
2069 hap_encoder_select="texturedspenc"
2070 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2071 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2072 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2073 iac_decoder_select="imc_decoder"
2074 imc_decoder_select="bswapdsp fft mdct sinewin"
2075 indeo3_decoder_select="hpeldsp"
2076 indeo4_decoder_select="ividsp"
2077 indeo5_decoder_select="ividsp"
2078 interplay_video_decoder_select="hpeldsp"
2079 jpegls_decoder_select="mjpeg_decoder"
2080 jv_decoder_select="blockdsp"
2081 lagarith_decoder_select="huffyuvdsp"
2082 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2083 magicyuv_decoder_select="huffyuvdsp"
2084 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2085 metasound_decoder_select="lsp mdct sinewin"
2086 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2087 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2088 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2089 mjpegb_decoder_select="mjpeg_decoder"
2090 mlp_decoder_select="mlp_parser"
2091 motionpixels_decoder_select="bswapdsp"
2092 mp1_decoder_select="mpegaudio"
2093 mp1float_decoder_select="mpegaudio"
2094 mp2_decoder_select="mpegaudio"
2095 mp2float_decoder_select="mpegaudio"
2096 mp3_decoder_select="mpegaudio"
2097 mp3adu_decoder_select="mpegaudio"
2098 mp3adufloat_decoder_select="mpegaudio"
2099 mp3float_decoder_select="mpegaudio"
2100 mp3on4_decoder_select="mpegaudio"
2101 mp3on4float_decoder_select="mpegaudio"
2102 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2103 mpc8_decoder_select="mpegaudiodsp"
2104 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2105 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2106 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2107 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2108 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2109 mpeg4_encoder_select="h263_encoder"
2110 msa1_decoder_select="mss34dsp"
2111 msmpeg4v1_decoder_select="h263_decoder"
2112 msmpeg4v2_decoder_select="h263_decoder"
2113 msmpeg4v2_encoder_select="h263_encoder"
2114 msmpeg4v3_decoder_select="h263_decoder"
2115 msmpeg4v3_encoder_select="h263_encoder"
2116 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2117 mts2_decoder_select="mss34dsp"
2118 mxpeg_decoder_select="mjpeg_decoder"
2119 nellymoser_decoder_select="mdct sinewin"
2120 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2121 nuv_decoder_select="idctdsp lzo"
2122 on2avc_decoder_select="mdct"
2123 opus_decoder_deps="avresample"
2124 opus_decoder_select="imdct15"
2125 png_decoder_deps="zlib"
2126 png_encoder_deps="zlib"
2127 png_encoder_select="huffyuvencdsp"
2128 prores_decoder_select="idctdsp"
2129 prores_encoder_select="fdctdsp"
2130 qcelp_decoder_select="lsp"
2131 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2132 ra_144_encoder_select="audio_frame_queue lpc"
2133 ralf_decoder_select="golomb"
2134 rscc_decoder_deps="zlib"
2135 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2136 rv10_encoder_select="h263_encoder"
2137 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2138 rv20_encoder_select="h263_encoder"
2139 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2140 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2141 screenpresso_decoder_deps="zlib"
2142 sipr_decoder_select="lsp"
2143 sp5x_decoder_select="mjpeg_decoder"
2144 svq1_decoder_select="hpeldsp"
2145 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2146 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2147 svq3_decoder_suggest="zlib"
2148 tak_decoder_select="audiodsp"
2149 tdsc_decoder_deps="zlib"
2150 tdsc_decoder_select="mjpeg_decoder"
2151 theora_decoder_select="vp3_decoder"
2152 thp_decoder_select="mjpeg_decoder"
2153 tiff_decoder_suggest="zlib"
2154 tiff_encoder_suggest="zlib"
2155 truehd_decoder_select="mlp_decoder"
2156 truemotion2_decoder_select="bswapdsp"
2157 truespeech_decoder_select="bswapdsp"
2158 tscc_decoder_deps="zlib"
2159 txd_decoder_select="texturedsp"
2160 twinvq_decoder_select="mdct lsp sinewin"
2161 utvideo_decoder_select="bswapdsp huffyuvdsp"
2162 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2163 vble_decoder_select="huffyuvdsp"
2164 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2165 vc1image_decoder_select="vc1_decoder"
2166 vorbis_decoder_select="mdct"
2167 vorbis_encoder_select="mdct"
2168 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2169 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2170 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2171 vp6a_decoder_select="vp6_decoder"
2172 vp6f_decoder_select="vp6_decoder"
2173 vp7_decoder_select="h264pred videodsp vp8dsp"
2174 vp8_decoder_select="h264pred videodsp vp8dsp"
2175 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2176 webp_decoder_select="vp8_decoder"
2177 wmapro_decoder_select="mdct sinewin wma_freqs"
2178 wmav1_decoder_select="mdct sinewin wma_freqs"
2179 wmav1_encoder_select="mdct sinewin wma_freqs"
2180 wmav2_decoder_select="mdct sinewin wma_freqs"
2181 wmav2_encoder_select="mdct sinewin wma_freqs"
2182 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2183 wmv1_decoder_select="h263_decoder"
2184 wmv1_encoder_select="h263_encoder"
2185 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2186 wmv2_encoder_select="h263_encoder wmv2dsp"
2187 wmv3_decoder_select="vc1_decoder"
2188 wmv3image_decoder_select="wmv3_decoder"
2189 zerocodec_decoder_deps="zlib"
2190 zlib_decoder_deps="zlib"
2191 zlib_encoder_deps="zlib"
2192 zmbv_decoder_deps="zlib"
2193 zmbv_encoder_deps="zlib"
2194
2195 # hardware accelerators
2196 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2197 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2198 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2199 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2200
2201 h263_vaapi_hwaccel_deps="vaapi"
2202 h263_vaapi_hwaccel_select="h263_decoder"
2203 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2204 h264_cuvid_hwaccel_select="h264_decoder"
2205 h264_d3d11va_hwaccel_deps="d3d11va"
2206 h264_d3d11va_hwaccel_select="h264_decoder"
2207 h264_d3d11va2_hwaccel_deps="d3d11va"
2208 h264_d3d11va2_hwaccel_select="h264_decoder"
2209 h264_dxva2_hwaccel_deps="dxva2"
2210 h264_dxva2_hwaccel_select="h264_decoder"
2211 h264_mmal_hwaccel_deps="mmal"
2212 h264_qsv_hwaccel_deps="libmfx"
2213 h264_vaapi_hwaccel_deps="vaapi"
2214 h264_vaapi_hwaccel_select="h264_decoder"
2215 h264_vda_hwaccel_deps="vda"
2216 h264_vda_hwaccel_select="h264_decoder"
2217 h264_vda_old_hwaccel_deps="vda"
2218 h264_vda_old_hwaccel_select="h264_decoder"
2219 h264_vdpau_hwaccel_deps="vdpau"
2220 h264_vdpau_hwaccel_select="h264_decoder"
2221 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2222 hevc_cuvid_hwaccel_select="hevc_decoder"
2223 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2224 hevc_d3d11va_hwaccel_select="hevc_decoder"
2225 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2226 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2227 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2228 hevc_dxva2_hwaccel_select="hevc_decoder"
2229 hevc_qsv_hwaccel_deps="libmfx"
2230 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2231 hevc_vaapi_hwaccel_select="hevc_decoder"
2232 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2233 hevc_vdpau_hwaccel_select="hevc_decoder"
2234 mpeg1_vdpau_hwaccel_deps="vdpau"
2235 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2236 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2237 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2238 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2239 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2240 mpeg2_dxva2_hwaccel_deps="dxva2"
2241 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2242 mpeg2_mmal_hwaccel_deps="mmal"
2243 mpeg2_qsv_hwaccel_deps="libmfx"
2244 mpeg2_vaapi_hwaccel_deps="vaapi"
2245 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2246 mpeg2_vdpau_hwaccel_deps="vdpau"
2247 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2248 mpeg4_vaapi_hwaccel_deps="vaapi"
2249 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2250 mpeg4_vdpau_hwaccel_deps="vdpau"
2251 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2252 vc1_d3d11va_hwaccel_deps="d3d11va"
2253 vc1_d3d11va_hwaccel_select="vc1_decoder"
2254 vc1_d3d11va2_hwaccel_deps="d3d11va"
2255 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2256 vc1_dxva2_hwaccel_deps="dxva2"
2257 vc1_dxva2_hwaccel_select="vc1_decoder"
2258 vc1_mmal_hwaccel_deps="mmal"
2259 vc1_qsv_hwaccel_deps="libmfx"
2260 vc1_vaapi_hwaccel_deps="vaapi"
2261 vc1_vaapi_hwaccel_select="vc1_decoder"
2262 vc1_vdpau_hwaccel_deps="vdpau"
2263 vc1_vdpau_hwaccel_select="vc1_decoder"
2264 vp8_qsv_hwaccel_deps="libmfx"
2265 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2266 vp8_vaapi_hwaccel_select="vp8_decoder"
2267 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2268 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2269 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2270 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2271 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2272
2273 # hardware-accelerated codecs
2274 nvenc_deps_any="libdl LoadLibrary"
2275 omx_deps="libdl pthreads"
2276 omx_rpi_select="omx"
2277 qsv_deps="libmfx"
2278 qsvdec_select="qsv"
2279 qsvenc_select="qsv"
2280 qsvvpp_select="qsv"
2281 vaapi_encode_deps="vaapi"
2282
2283 hwupload_cuda_filter_deps="cuda"
2284 scale_npp_filter_deps="cuda libnpp"
2285
2286 h264_mmal_decoder_deps="mmal"
2287 h264_nvenc_encoder_deps="nvenc"
2288 h264_omx_encoder_deps="omx"
2289 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2290 h264_qsv_encoder_select="qsvenc"
2291 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2292 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2293 hevc_nvenc_encoder_deps="nvenc"
2294 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2295 hevc_qsv_encoder_select="hevcparse qsvenc"
2296 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2297 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2298 mjpeg_qsv_encoder_deps="libmfx"
2299 mjpeg_qsv_encoder_select="qsvenc"
2300 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2301 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2302 mpeg2_mmal_decoder_deps="mmal"
2303 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2304 mpeg2_qsv_encoder_select="qsvenc"
2305 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2306 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2307 mpeg4_omx_encoder_deps="omx"
2308 vc1_mmal_decoder_deps="mmal"
2309 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2310 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2311 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2312 vp8_vaapi_encoder_select="vaapi_encode"
2313 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2314 vp9_vaapi_encoder_select="vaapi_encode"
2315
2316 nvenc_h264_encoder_select="h264_nvenc_encoder"
2317 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2318
2319 # parsers
2320 aac_parser_select="adts_header"
2321 h264_parser_select="golomb h264dsp h264parse"
2322 hevc_parser_select="hevcparse"
2323 mpegaudio_parser_select="mpegaudioheader"
2324 mpegvideo_parser_select="mpegvideo"
2325 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2326 vc1_parser_select="vc1dsp"
2327
2328 # bitstream_filters
2329 aac_adtstoasc_bsf_select="adts_header"
2330 h264_metadata_bsf_select="cbs_h264"
2331 h264_redundant_pps_bsf_select="cbs_h264"
2332 hevc_metadata_bsf_select="cbs_h265"
2333 mjpeg2jpeg_bsf_select="jpegtables"
2334 mpeg2_metadata_bsf_select="cbs_mpeg2"
2335 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2336
2337 # external libraries
2338 avisynth_deps="LoadLibrary"
2339 avxsynth_deps="libdl"
2340 avisynth_demuxer_deps_any="avisynth avxsynth"
2341 avisynth_demuxer_select="riffdec"
2342 libdcadec_decoder_deps="libdcadec"
2343 libfaac_encoder_deps="libfaac"
2344 libfaac_encoder_select="audio_frame_queue"
2345 libfdk_aac_decoder_deps="libfdk_aac"
2346 libfdk_aac_encoder_deps="libfdk_aac"
2347 libfdk_aac_encoder_select="audio_frame_queue"
2348 libgsm_decoder_deps="libgsm"
2349 libgsm_encoder_deps="libgsm"
2350 libgsm_ms_decoder_deps="libgsm"
2351 libgsm_ms_encoder_deps="libgsm"
2352 libilbc_decoder_deps="libilbc"
2353 libilbc_encoder_deps="libilbc"
2354 libkvazaar_encoder_deps="libkvazaar"
2355 libmp3lame_encoder_deps="libmp3lame"
2356 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2357 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2358 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2359 libopencore_amrnb_encoder_select="audio_frame_queue"
2360 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2361 libopenh264_decoder_deps="libopenh264"
2362 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2363 libopenh264_encoder_deps="libopenh264"
2364 libopenjpeg_decoder_deps="libopenjpeg"
2365 libopenjpeg_encoder_deps="libopenjpeg"
2366 libopus_decoder_deps="libopus"
2367 libopus_encoder_deps="libopus"
2368 libopus_encoder_select="audio_frame_queue"
2369 libschroedinger_decoder_deps="libschroedinger"
2370 libschroedinger_encoder_deps="libschroedinger"
2371 libspeex_decoder_deps="libspeex"
2372 libspeex_encoder_deps="libspeex"
2373 libspeex_encoder_select="audio_frame_queue"
2374 libtheora_encoder_deps="libtheora"
2375 libtwolame_encoder_deps="libtwolame"
2376 libvo_aacenc_encoder_deps="libvo_aacenc"
2377 libvo_aacenc_encoder_select="audio_frame_queue"
2378 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2379 libvorbis_encoder_deps="libvorbis"
2380 libvorbis_encoder_select="audio_frame_queue"
2381 libvpx_vp8_decoder_deps="libvpx"
2382 libvpx_vp8_encoder_deps="libvpx"
2383 libvpx_vp9_decoder_deps="libvpx"
2384 libvpx_vp9_encoder_deps="libvpx"
2385 libwavpack_encoder_deps="libwavpack"
2386 libwavpack_encoder_select="audio_frame_queue"
2387 libwebp_encoder_deps="libwebp"
2388 libx262_encoder_deps="libx262"
2389 libx264_encoder_deps="libx264"
2390 libx265_encoder_deps="libx265"
2391 libxavs_encoder_deps="libxavs"
2392 libxvid_encoder_deps="libxvid mkstemp"
2393
2394 # demuxers / muxers
2395 ac3_demuxer_select="ac3_parser"
2396 asf_demuxer_select="riffdec"
2397 asf_muxer_select="riffenc"
2398 asf_stream_muxer_select="asf_muxer"
2399 avi_demuxer_select="iso_media riffdec"
2400 avi_muxer_select="riffenc"
2401 caf_demuxer_select="iso_media riffdec"
2402 dash_muxer_select="mp4_muxer"
2403 dirac_demuxer_select="dirac_parser"
2404 dv_demuxer_select="dvprofile"
2405 dv_muxer_select="dvprofile"
2406 dxa_demuxer_select="riffdec"
2407 eac3_demuxer_select="ac3_parser"
2408 f4v_muxer_select="mov_muxer"
2409 flac_demuxer_select="flac_parser"
2410 hds_muxer_select="flv_muxer"
2411 hls_muxer_select="mpegts_muxer"
2412 ipod_muxer_select="mov_muxer"
2413 ismv_muxer_select="mov_muxer"
2414 matroska_audio_muxer_select="matroska_muxer"
2415 matroska_demuxer_select="iso_media riffdec"
2416 matroska_demuxer_suggest="bzlib lzo zlib"
2417 matroska_muxer_select="iso_media riffenc"
2418 mmf_muxer_select="riffenc"
2419 mov_demuxer_select="iso_media riffdec"
2420 mov_demuxer_suggest="zlib"
2421 mov_muxer_select="iso_media riffenc rtpenc_chain"
2422 mp3_demuxer_select="mpegaudio_parser"
2423 mp3_muxer_select="mpegaudioheader"
2424 mp4_muxer_select="mov_muxer"
2425 mpegts_demuxer_select="iso_media"
2426 mpegts_muxer_select="adts_muxer latm_muxer"
2427 mpegtsraw_demuxer_select="mpegts_demuxer"
2428 mxf_d10_muxer_select="mxf_muxer"
2429 nut_muxer_select="riffenc"
2430 nuv_demuxer_select="riffdec"
2431 oga_muxer_select="ogg_muxer"
2432 ogg_demuxer_select="dirac_parse"
2433 opus_muxer_select="ogg_muxer"
2434 psp_muxer_select="mov_muxer"
2435 rtp_demuxer_select="sdp_demuxer"
2436 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2437 rtsp_demuxer_select="http_protocol rtpdec"
2438 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2439 sap_demuxer_select="sdp_demuxer"
2440 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2441 sdp_demuxer_select="rtpdec"
2442 smoothstreaming_muxer_select="ismv_muxer"
2443 spdif_demuxer_select="adts_header"
2444 spdif_muxer_select="adts_header"
2445 spx_muxer_select="ogg_muxer"
2446 swf_demuxer_suggest="zlib"
2447 tak_demuxer_select="tak_parser"
2448 tg2_muxer_select="mov_muxer"
2449 tgp_muxer_select="mov_muxer"
2450 w64_demuxer_select="wav_demuxer"
2451 wav_demuxer_select="riffdec"
2452 wav_muxer_select="riffenc"
2453 webm_muxer_select="iso_media riffenc"
2454 wtv_demuxer_select="mpegts_demuxer riffdec"
2455 xmv_demuxer_select="riffdec"
2456 xwma_demuxer_select="riffdec"
2457
2458 # indevs / outdevs
2459 alsa_indev_deps="alsa"
2460 alsa_outdev_deps="alsa"
2461 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2462 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2463 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2464 dv1394_indev_deps="dv1394"
2465 dv1394_indev_select="dv_demuxer"
2466 fbdev_indev_deps="linux_fb_h"
2467 jack_indev_deps="libjack"
2468 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2469 libcdio_indev_deps="libcdio"
2470 libdc1394_indev_deps="libdc1394"
2471 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2472 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2473 pulse_indev_deps="libpulse"
2474 sndio_indev_deps="sndio"
2475 sndio_outdev_deps="sndio"
2476 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2477 vfwcap_indev_deps="vfw32 vfwcap_defines"
2478 xcbgrab_indev_deps="libxcb libxcb_shape"
2479 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2480
2481 # protocols
2482 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2483 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2484 ffrtmpcrypt_protocol_select="tcp_protocol"
2485 ffrtmphttp_protocol_conflict="librtmp_protocol"
2486 ffrtmphttp_protocol_select="http_protocol"
2487 gopher_protocol_select="network"
2488 http_protocol_select="tcp_protocol"
2489 http_protocol_suggest="zlib"
2490 httpproxy_protocol_select="tcp_protocol"
2491 httpproxy_protocol_suggest="zlib"
2492 https_protocol_select="tls_protocol"
2493 https_protocol_suggest="zlib"
2494 icecast_protocol_select="http_protocol"
2495 librtmp_protocol_deps="librtmp"
2496 librtmpe_protocol_deps="librtmp"
2497 librtmps_protocol_deps="librtmp"
2498 librtmpt_protocol_deps="librtmp"
2499 librtmpte_protocol_deps="librtmp"
2500 mmsh_protocol_select="http_protocol"
2501 mmst_protocol_select="network"
2502 rtmp_protocol_conflict="librtmp_protocol"
2503 rtmp_protocol_select="tcp_protocol"
2504 rtmp_protocol_suggest="zlib"
2505 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2506 rtmpe_protocol_suggest="zlib"
2507 rtmps_protocol_conflict="librtmp_protocol"
2508 rtmps_protocol_select="tls_protocol"
2509 rtmps_protocol_suggest="zlib"
2510 rtmpt_protocol_select="ffrtmphttp_protocol"
2511 rtmpt_protocol_suggest="zlib"
2512 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2513 rtmpte_protocol_suggest="zlib"
2514 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2515 rtmpts_protocol_suggest="zlib"
2516 rtp_protocol_select="udp_protocol"
2517 sctp_protocol_deps="struct_sctp_event_subscribe"
2518 sctp_protocol_select="network"
2519 srtp_protocol_select="rtp_protocol srtp"
2520 tcp_protocol_select="network"
2521 tls_protocol_deps_any="gnutls openssl"
2522 tls_protocol_select="tcp_protocol"
2523 udp_protocol_select="network"
2524 unix_protocol_deps="sys_un_h"
2525 unix_protocol_select="network"
2526
2527 # filters
2528 asyncts_filter_deps="avresample"
2529 blackframe_filter_deps="gpl"
2530 boxblur_filter_deps="gpl"
2531 bs2b_filter_deps="libbs2b"
2532 cropdetect_filter_deps="gpl"
2533 deinterlace_qsv_filter_deps="libmfx"
2534 deinterlace_vaapi_filter_deps="vaapi"
2535 delogo_filter_deps="gpl"
2536 drawtext_filter_deps="libfreetype"
2537 drawtext_filter_suggest="libfontconfig"
2538 frei0r_filter_deps="frei0r libdl"
2539 frei0r_src_filter_deps="frei0r libdl"
2540 hdcd_filter_deps="libhdcd"
2541 hqdn3d_filter_deps="gpl"
2542 interlace_filter_deps="gpl"
2543 movie_filter_deps="avcodec avformat"
2544 ocv_filter_deps="libopencv"
2545 overlay_qsv_filter_deps="libmfx"
2546 overlay_qsv_filter_select="qsvvpp"
2547 resample_filter_deps="avresample"
2548 scale_filter_deps="swscale"
2549 scale_qsv_filter_deps="libmfx"
2550 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2551 vpp_qsv_filter_deps="libmfx"
2552 vpp_qsv_filter_select="qsvvpp"
2553
2554 # examples
2555 decode_audio_example_deps="avcodec avutil"
2556 decode_video_example_deps="avcodec avutil"
2557 encode_audio_example_deps="avcodec avutil"
2558 encode_video_example_deps="avcodec avutil"
2559 filter_audio_example_deps="avfilter avutil"
2560 metadata_example_deps="avformat avutil"
2561 output_example_deps="avcodec avformat avresample avutil swscale"
2562 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2563 transcode_aac_example_deps="avcodec avformat avresample"
2564
2565 # EXTRALIBS_LIST
2566 cpu_init_extralibs="pthreads_extralibs"
2567 cws2fws_extralibs="zlib_extralibs"
2568
2569 # libraries, in linking order
2570 avcodec_deps="avutil"
2571 avcodec_select="null_bsf"
2572 avdevice_deps="avformat avcodec avutil"
2573 avfilter_deps="avutil"
2574 avformat_deps="avcodec avutil"
2575 avformat_suggest="network"
2576 avresample_deps="avutil"
2577 swscale_deps="avutil"
2578
2579 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2580 avdevice_extralibs="libm_extralibs"
2581 avformat_extralibs="libm_extralibs"
2582 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2583 avresample_extralibs="libm_extralibs"
2584 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"
2585 swscale_extralibs="libm_extralibs"
2586
2587 # programs
2588 avconv_deps="avcodec avfilter avformat avresample swscale"
2589 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2590 fps_filter null_filter resample_filter scale_filter
2591 trim_filter"
2592 avconv_suggest="psapi shell32"
2593 avplay_deps="avcodec avfilter avformat avresample sdl"
2594 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2595 avplay_suggest="shell32"
2596 avprobe_deps="avcodec avformat"
2597 avprobe_suggest="shell32"
2598
2599 # documentation
2600 pod2man_deps="doc"
2601 texi2html_deps="doc"
2602
2603 # default parameters
2604
2605 logfile="avbuild/config.log"
2606
2607 # installation paths
2608 prefix_default="/usr/local"
2609 bindir_default='${prefix}/bin'
2610 datadir_default='${prefix}/share/avconv'
2611 docdir_default='${prefix}/share/doc/libav'
2612 incdir_default='${prefix}/include'
2613 libdir_default='${prefix}/lib'
2614 mandir_default='${prefix}/share/man'
2615 shlibdir_default="$libdir_default"
2616
2617 # toolchain
2618 ar_default="ar"
2619 cc_default="gcc"
2620 host_cc_default="gcc"
2621 x86asmexe_default="nasm"
2622 ln_s="ln -s -f"
2623 nm_default="nm -g"
2624 pkg_config_default=pkg-config
2625 ranlib="ranlib"
2626 strip="strip"
2627 version_script='--version-script'
2628
2629 # machine
2630 arch_default=$(uname -m)
2631 cpu="generic"
2632 intrinsics="none"
2633
2634 # OS
2635 target_os_default=$(tolower $(uname -s))
2636 host_os=$target_os_default
2637
2638 # configurable options
2639 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2640
2641 enable asm
2642 enable debug
2643 enable doc
2644 enable faan faandct faanidct
2645 enable optimizations
2646 enable safe_bitstream_reader
2647 enable static
2648 enable swscale_alpha
2649 enable valgrind_backtrace
2650
2651 # By default, enable only those hwaccels that have no external dependencies.
2652 enable d3d11va dxva2 vda vdpau
2653
2654 # internal components are enabled by default
2655 enable $EXTRALIBS_LIST
2656
2657 # Avoid external, non-system, libraries getting enabled by dependency resolution
2658 disable $EXTERNAL_LIBRARY_LIST
2659
2660 # build settings
2661 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2662 LIBPREF="lib"
2663 LIBSUF=".a"
2664 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2665 SLIBPREF="lib"
2666 SLIBSUF=".so"
2667 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2668 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2669 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2670 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2671 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2672 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2673 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2674
2675 asflags_filter=echo
2676 cflags_filter=echo
2677 ldflags_filter=echo
2678
2679 AS_C='-c'
2680 AS_O='-o $@'
2681 CC_C='-c'
2682 CC_E='-E -o $@'
2683 CC_O='-o $@'
2684 OBJCC_C='-c'
2685 OBJCC_E='-E -o $@'
2686 OBJCC_O='-o $@'
2687 X86ASM_O='-o $@'
2688 LD_O='-o $@'
2689 LD_LIB='-l%'
2690 LD_PATH='-L'
2691 HOSTCC_C='-c'
2692 HOSTCC_E='-E -o $@'
2693 HOSTCC_O='-o $@'
2694 HOSTLD_O='-o $@'
2695
2696 host_extralibs='-lm'
2697 host_cflags_filter=echo
2698 host_ldflags_filter=echo
2699
2700 target_path='$(CURDIR)'
2701
2702 # since the object filename is not given with the -MM flag, the compiler
2703 # is only able to print the basename, and we must add the path ourselves
2704 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2705 DEPFLAGS='-MM'
2706
2707 mkdir -p avbuild
2708
2709 # find source path
2710 if test -f configure; then
2711 source_path=.
2712 else
2713 source_path=$(cd $(dirname "$0"); pwd)
2714 echo "$source_path" | grep -q '[[:blank:]]' &&
2715 die "Out of tree builds are impossible with whitespace in source path."
2716 test -e "$source_path/config.h" &&
2717 die "Out of tree builds are impossible with config.h in source dir."
2718 fi
2719
2720 for v in "$@"; do
2721 r=${v#*=}
2722 l=${v%"$r"}
2723 r=$(sh_quote "$r")
2724 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2725 done
2726
2727 find_things(){
2728 thing=$1
2729 pattern=$2
2730 file=$source_path/$3
2731 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2732 }
2733
2734 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2735 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2736 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2737 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2738 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2739 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2740 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2741 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2742 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2743
2744 find_things_extern(){
2745 thing=$1
2746 pattern=$2
2747 file=$source_path/$3
2748 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2749 }
2750
2751 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2752 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2753
2754 AVCODEC_COMPONENTS_LIST="
2755 $BSF_LIST
2756 $DECODER_LIST
2757 $ENCODER_LIST
2758 $HWACCEL_LIST
2759 $PARSER_LIST
2760 "
2761
2762 AVDEVICE_COMPONENTS_LIST="
2763 $INDEV_LIST
2764 $OUTDEV_LIST
2765 "
2766
2767 AVFILTER_COMPONENTS_LIST="
2768 $FILTER_LIST
2769 "
2770
2771 AVFORMAT_COMPONENTS_LIST="
2772 $DEMUXER_LIST
2773 $MUXER_LIST
2774 $PROTOCOL_LIST
2775 "
2776
2777 ALL_COMPONENTS="
2778 $AVCODEC_COMPONENTS_LIST
2779 $AVDEVICE_COMPONENTS_LIST
2780 $AVFILTER_COMPONENTS_LIST
2781 $AVFORMAT_COMPONENTS_LIST
2782 "
2783
2784 for n in $COMPONENT_LIST; do
2785 v=$(toupper ${n%s})_LIST
2786 eval enable \$$v
2787 eval ${n}_if_any="\$$v"
2788 done
2789
2790 enable $ARCH_EXT_LIST
2791
2792 die_unknown(){
2793 echo "Unknown option \"$1\"."
2794 echo "See $0 --help for available options."
2795 exit 1
2796 }
2797
2798 print_3_columns() {
2799 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2800 }
2801
2802 show_list() {
2803 suffix=_$1
2804 shift
2805 echo $* | sed s/$suffix//g | print_3_columns
2806 exit 0
2807 }
2808
2809 rand_list(){
2810 IFS=', '
2811 set -- $*
2812 unset IFS
2813 for thing; do
2814 comp=${thing%:*}
2815 prob=${thing#$comp}
2816 prob=${prob#:}
2817 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2818 echo "prob ${prob:-0.5}"
2819 printf '%s\n' $comp
2820 done
2821 }
2822
2823 do_random(){
2824 action=$1
2825 shift
2826 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2827 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2828 }
2829
2830 for opt do
2831 optval="${opt#*=}"
2832 case "$opt" in
2833 --extra-ldflags=*)
2834 add_ldflags $optval
2835 ;;
2836 --extra-ldexeflags=*)
2837 add_ldexeflags $optval
2838 ;;
2839 --extra-ldsoflags=*)
2840 add_ldsoflags $optval
2841 ;;
2842 --extra-libs=*)
2843 add_extralibs $optval
2844 ;;
2845 --disable-devices)
2846 disable $INDEV_LIST $OUTDEV_LIST
2847 ;;
2848 --enable-debug=*)
2849 debuglevel="$optval"
2850 ;;
2851 --disable-programs)
2852 disable $PROGRAM_LIST
2853 ;;
2854 --disable-everything)
2855 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2856 ;;
2857 --disable-all)
2858 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2859 disable $LIBRARY_LIST $PROGRAM_LIST doc
2860 ;;
2861 --enable-random|--disable-random)
2862 action=${opt%%-random}
2863 do_random ${action#--} $COMPONENT_LIST
2864 ;;
2865 --enable-random=*|--disable-random=*)
2866 action=${opt%%-random=*}
2867 do_random ${action#--} $optval
2868 ;;
2869 --enable-*=*|--disable-*=*)
2870 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2871 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2872 eval list=\$$(toupper $thing)_LIST
2873 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2874 $action $(filter "$name" $list)
2875 ;;
2876 --enable-avserver|--disable-avserver*)
2877 warn "avserver has been removed, the ${opt} option is only"\
2878 "provided for compatibility and will be removed in the future"
2879 ;;
2880 --enable-yasm|--disable-yasm)
2881 warn "The ${opt} option is only provided for compatibility and will be\n"\
2882 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2883 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2884 ;;
2885 --enable-?*|--disable-?*)
2886 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2887 if is_in $option $COMPONENT_LIST; then
2888 test $action = disable && action=unset
2889 eval $action \$$(toupper ${option%s})_LIST
2890 elif is_in $option $CMDLINE_SELECT; then
2891 $action $option
2892 else
2893 die_unknown $opt
2894 fi
2895 ;;
2896 --list-*)
2897 NAME="${opt#--list-}"
2898 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2899 NAME=${NAME%s}
2900 eval show_list $NAME \$$(toupper $NAME)_LIST
2901 ;;
2902 --help|-h) show_help
2903 ;;
2904 --quiet|-q) quiet=yes
2905 ;;
2906 *)
2907 optname="${opt%%=*}"
2908 optname="${optname#--}"
2909 optname=$(echo "$optname" | sed 's/-/_/g')
2910 if is_in $optname $CMDLINE_SET; then
2911 eval $optname='$optval'
2912 elif is_in $optname $CMDLINE_APPEND; then
2913 append $optname "$optval"
2914 else
2915 die_unknown $opt
2916 fi
2917 ;;
2918 esac
2919 done
2920
2921 for e in $env; do
2922 eval "export $e"
2923 done
2924
2925 disabled logging && logfile=/dev/null
2926
2927 # Die early if licensing-related configure options are incompatible.
2928 die_license_disabled() {
2929 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2930 }
2931
2932 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2933 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2934 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2935
2936 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2937
2938 enabled_all gnutls openssl &&
2939 die "GnuTLS and OpenSSL must not be enabled at the same time."
2940
2941 # Disable all the library-specific components if the library itself
2942 # is disabled, see AVCODEC_LIST and following _LIST variables.
2943
2944 disable_components(){
2945 disabled ${1} && disable $(
2946 eval components="\$$(toupper ${1})_COMPONENTS"
2947 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2948 )
2949 }
2950
2951 map 'disable_components $v' $LIBRARY_LIST
2952
2953 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2954 set >> $logfile
2955
2956 case "$toolchain" in
2957 *-asan)
2958 cc_default="${toolchain%-asan}"
2959 add_cflags -fsanitize=address
2960 add_ldflags -fsanitize=address
2961 ;;
2962 *-msan)
2963 cc_default="${toolchain%-msan}"
2964 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2965 add_ldflags -fsanitize=memory
2966 ;;
2967 *-tsan)
2968 cc_default="${toolchain%-tsan}"
2969 add_cflags -fsanitize=thread -fPIE
2970 add_ldflags -fsanitize=thread -pie
2971 case "$toolchain" in
2972 gcc-tsan)
2973 add_cflags -fPIC
2974 add_ldflags -fPIC
2975 ;;
2976 esac
2977 ;;
2978 *-usan)
2979 cc_default="${toolchain%-usan}"
2980 add_cflags -fsanitize=undefined
2981 add_ldflags -fsanitize=undefined
2982 case "$toolchain" in
2983 clang-usan)
2984 add_cflags -O1
2985 ;;
2986 esac
2987 ;;
2988 valgrind-*)
2989 target_exec_default="valgrind"
2990 case "$toolchain" in
2991 valgrind-massif)
2992 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2993 ;;
2994 valgrind-memcheck)
2995 target_exec_args="--track-origins=yes --leak-check=full"
2996 ;;
2997 esac
2998 ;;
2999 msvc)
3000 # Check whether the current MSVC version needs the C99 converter.
3001 # From MSVC 2013 (compiler major version 18) onwards, it does actually
3002 # support enough of C99 to build libav. Default to the new
3003 # behaviour if the regexp was unable to match anything, since this
3004 # successfully parses the version number of existing supported
3005 # versions that require the converter (MSVC 2010 and 2012).
3006 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3007 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3008 cc_default="cl"
3009 else
3010 cc_default="c99wrap cl"
3011 fi
3012 ld_default="$source_path/compat/windows/mslink"
3013 nm_default="dumpbin -symbols"
3014 ar_default="lib"
3015 case "$arch" in
3016 arm*)
3017 as_default="armasm"
3018 ;;
3019 esac
3020 target_os_default="win32"
3021 # Use a relative path for TMPDIR. This makes sure all the
3022 # ffconf temp files are written with a relative path, avoiding
3023 # issues with msys/win32 path conversion for MSVC parameters
3024 # such as -Fo<file> or -out:<file>.
3025 TMPDIR=.
3026 ;;
3027 icl)
3028 cc_default="icl"
3029 ld_default="xilink"
3030 nm_default="dumpbin -symbols"
3031 ar_default="xilib"
3032 target_os_default="win32"
3033 TMPDIR=.
3034 ;;
3035 gcov)
3036 add_cflags -fprofile-arcs -ftest-coverage
3037 add_ldflags -fprofile-arcs -ftest-coverage
3038 ;;
3039 llvm-cov)
3040 add_cflags -fprofile-arcs -ftest-coverage
3041 add_ldflags --coverage
3042 ;;
3043 hardened)
3044 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3045 add_cflags -fno-strict-overflow -fstack-protector-all
3046 add_ldflags -Wl,-z,relro -Wl,-z,now
3047 ;;
3048 ?*)
3049 die "Unknown toolchain $toolchain"
3050 ;;
3051 esac
3052
3053 test -n "$cross_prefix" && enable cross_compile
3054
3055 if enabled cross_compile; then
3056 test -n "$arch" && test -n "$target_os" ||
3057 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3058 fi
3059
3060 ar_default="${cross_prefix}${ar_default}"
3061 cc_default="${cross_prefix}${cc_default}"
3062 objcc_default="${cross_prefix}${objcc_default}"
3063 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3064 nm_default="${cross_prefix}${nm_default}"
3065 pkg_config_default="${cross_prefix}${pkg_config_default}"
3066 ranlib="${cross_prefix}${ranlib}"
3067 strip="${cross_prefix}${strip}"
3068
3069 sysinclude_default="${sysroot}/usr/include"
3070
3071 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3072 enabled cross_compile || host_cc_default=$cc
3073 set_default host_cc
3074
3075 if ! $pkg_config --version >/dev/null 2>&1; then
3076 warn "$pkg_config not found, library detection may fail."
3077 pkg_config=false
3078 fi
3079
3080 exesuf() {
3081 case $1 in
3082 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3083 esac
3084 }
3085
3086 EXESUF=$(exesuf $target_os)
3087 HOSTEXESUF=$(exesuf $host_os)
3088
3089 # set temporary file name
3090 : ${TMPDIR:=$TEMPDIR}
3091 : ${TMPDIR:=$TMP}
3092 : ${TMPDIR:=/tmp}
3093
3094 if ! check_cmd mktemp -u XXXXXX; then
3095 # simple replacement for missing mktemp
3096 # NOT SAFE FOR GENERAL USE
3097 mktemp(){
3098 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3099 echo "$tmpname"
3100 mkdir "$tmpname"
3101 }
3102 fi
3103
3104 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3105 die "Unable to create temporary directory in $TMPDIR."
3106
3107 tmpfile(){
3108 tmp="${AVTMPDIR}/test"$2
3109 (set -C; exec > $tmp) 2> /dev/null ||
3110 die "Unable to create temporary file in $AVTMPDIR."
3111 eval $1=$tmp
3112 }
3113
3114 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3115 trap 'exit 2' INT
3116
3117 tmpfile TMPASM .asm
3118 tmpfile TMPC .c
3119 tmpfile TMPE $EXESUF
3120 tmpfile TMPH .h
3121 tmpfile TMPO .o
3122 tmpfile TMPS .S
3123 tmpfile TMPSH .sh
3124 tmpfile TMPV .ver
3125
3126 unset -f mktemp
3127
3128 chmod +x $TMPE
3129
3130 # make sure we can execute files in $TMPDIR
3131 cat > $TMPSH 2>> $logfile <<EOF
3132 #! /bin/sh
3133 EOF
3134 chmod +x $TMPSH >> $logfile 2>&1
3135 if ! $TMPSH >> $logfile 2>&1; then
3136 cat <<EOF
3137 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3138 variable to another directory and make sure that it is not mounted noexec.
3139 EOF
3140 die "Sanity test failed."
3141 fi
3142
3143 armasm_flags(){
3144 for flag; do
3145 case $flag in
3146 # Filter out MSVC cl.exe options from cflags that shouldn't
3147 # be passed to gas-preprocessor
3148 -M[TD]*) ;;
3149 *) echo $flag ;;
3150 esac
3151 done
3152 }
3153
3154 cparser_flags(){
3155 for flag; do
3156 case $flag in
3157 -Wno-switch) echo -Wno-switch-enum ;;
3158 -Wno-format-zero-length) ;;
3159 -Wdisabled-optimization) ;;
3160 -Wno-pointer-sign) echo -Wno-other ;;
3161 *) echo $flag ;;
3162 esac
3163 done
3164 }
3165
3166 msvc_common_flags(){
3167 for flag; do
3168 case $flag in
3169 # In addition to specifying certain flags under the compiler
3170 # specific filters, they must be specified here as well or else the
3171 # generic catch all at the bottom will print the original flag.
3172 -Wall) ;;
3173 -Wextra) ;;
3174 -std=c99) ;;
3175 # Common flags
3176 -fomit-frame-pointer) ;;
3177 -g) echo -Z7 ;;
3178 -fno-math-errno) ;;
3179 -fno-common) ;;
3180 -fno-signed-zeros) ;;
3181 -fPIC) ;;
3182 -mthumb) ;;
3183 -march=*) ;;
3184 -lz) echo zlib.lib ;;
3185 -lx264) echo libx264.lib ;;
3186 -l*) echo ${flag#-l}.lib ;;
3187 -L*) echo -libpath:${flag#-L} ;;
3188 *) echo $flag ;;
3189 esac
3190 done
3191 }
3192
3193 msvc_flags(){
3194 msvc_common_flags "$@"
3195 for flag; do
3196 case $flag in
3197 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3198 -wd4554 ;;
3199 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3200 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3201 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3202 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3203 esac
3204 done
3205 }
3206
3207 icl_flags(){
3208 msvc_common_flags "$@"
3209 for flag; do
3210 case $flag in
3211 # Despite what Intel's documentation says -Wall, which is supported
3212 # on Windows, does enable remarks so disable them here.
3213 -Wall) echo $flag -Qdiag-disable:remark ;;
3214 -std=c99) echo -Qstd=c99 ;;
3215 esac
3216 done
3217 }
3218
3219 pgi_flags(){
3220 for flag; do
3221 case $flag in
3222 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3223 -fomit-frame-pointer) echo -Mnoframe ;;
3224 -g) echo -gopt ;;
3225 *) echo $flag ;;
3226 esac
3227 done
3228 }
3229
3230 suncc_flags(){
3231 for flag; do
3232 case $flag in
3233 -march=*|-mcpu=*)
3234 case "${flag#*=}" in
3235 native) echo -xtarget=native ;;
3236 v9|niagara) echo -xarch=sparc ;;
3237 ultrasparc) echo -xarch=sparcvis ;;
3238 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3239 i586|pentium) echo -xchip=pentium ;;
3240 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3241 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3242 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3243 pentium4*) echo -xtarget=pentium4 ;;
3244 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3245 *-sse3) echo -xarch=sse3 ;;
3246 core2) echo -xarch=ssse3 -xchip=core2 ;;
3247 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3248 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3249 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3250 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3251 k8|opteron|athlon64|athlon-fx)
3252 echo -xarch=sse2a ;;
3253 athlon*) echo -xarch=pentium_proa ;;
3254 esac
3255 ;;
3256 -std=c99) echo -xc99 ;;
3257 -fomit-frame-pointer) echo -xregs=frameptr ;;
3258 -fPIC) echo -KPIC -xcode=pic32 ;;
3259 -W*,*) echo $flag ;;
3260 -f*-*|-W*|-mimpure-text) ;;
3261 -shared) echo -G ;;
3262 *) echo $flag ;;
3263 esac
3264 done
3265 }
3266
3267 tms470_flags(){
3268 for flag; do
3269 case $flag in
3270 -march=*|-mcpu=*)
3271 case "${flag#*=}" in
3272 armv7-a|cortex-a*) echo -mv=7a8 ;;
3273 armv7-r|cortex-r*) echo -mv=7r4 ;;
3274 armv7-m|cortex-m*) echo -mv=7m3 ;;
3275 armv6*|arm11*) echo -mv=6 ;;
3276 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3277 echo -mv=5e ;;
3278 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3279 esac
3280 ;;
3281 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3282 -mfpu=vfp) echo --float_support=vfpv2 ;;
3283 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3284 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3285 -msoft-float) echo --float_support=vfplib ;;
3286 -O[0-3]|-mf=*) echo $flag ;;
3287 -g) echo -g -mn ;;
3288 -pds=*) echo $flag ;;
3289 -D*|-I*) echo $flag ;;
3290 --gcc|--abi=*) echo $flag ;;
3291 -me) echo $flag ;;
3292 esac
3293 done
3294 }
3295
3296 probe_cc(){
3297 pfx=$1
3298 _cc=$2
3299
3300 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3301 unset _ld_o _ldflags _ld_lib _ld_path
3302 unset _depflags _DEPCMD _DEPFLAGS
3303 _flags_filter=echo
3304
3305 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3306 _type=llvm_gcc
3307 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3308 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3309 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3310 _cflags_speed='-O3'
3311 _cflags_size='-Os'
3312 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3313 _type=gcc
3314 gcc_version=$($_cc --version | head -n1)
3315 gcc_basever=$($_cc -dumpversion)
3316 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3317 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3318 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3319 if ! $_cc -dumpversion | grep -q '^2\.'; then
3320 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3321 fi
3322 _cflags_speed='-O3'
3323 _cflags_size='-Os'
3324 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3325 _type=icc
3326 _ident=$($_cc --version | head -n1)
3327 _depflags='-MMD'
3328 _cflags_speed='-O3'
3329 _cflags_size='-Os'
3330 _cflags_noopt='-O1'
3331 elif $_cc -v 2>&1 | grep -q xlc; then
3332 _type=xlc
3333 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3334 _cflags_speed='-O5'
3335 _cflags_size='-O5 -qcompact'
3336 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3337 test -d "$sysroot" || die "No valid sysroot specified."
3338 _type=armcc
3339 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3340 armcc_conf="$PWD/armcc.conf"
3341 $_cc --arm_linux_configure \
3342 --arm_linux_config_file="$armcc_conf" \
3343 --configure_sysroot="$sysroot" \
3344 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3345 die "Error creating armcc configuration file."
3346 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3347 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3348 as_default="${cross_prefix}gcc"
3349 _depflags='-MMD'
3350 _cflags_speed='-O3'
3351 _cflags_size='-Os'
3352 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3353 _type=tms470
3354 _ident=$($_cc -version | head -n1 | tr -s ' ')
3355 _flags='--gcc --abi=eabi -me'
3356 _cc_e='-ppl -fe=$@'
3357 _cc_o='-fe=$@'
3358 _depflags='-ppa -ppd=$(@:.o=.d)'
3359 _cflags_speed='-O3 -mf=5'
3360 _cflags_size='-O3 -mf=2'
3361 _flags_filter=tms470_flags
3362 elif $_cc -v 2>&1 | grep -q clang; then
3363 _type=clang
3364 _ident=$($_cc --version 2>/dev/null | head -n1)
3365 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3366 _cflags_speed='-O3'
3367 _cflags_size='-Os'
3368 elif $_cc -V 2>&1 | grep -q Sun; then
3369 _type=suncc
3370 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3371 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3372 _DEPFLAGS='-xM1 -xc99'
3373 _ldflags='-std=c99'
3374 _cflags_speed='-O5'
3375 _cflags_size='-O5 -xspace'
3376 _flags_filter=suncc_flags
3377 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3378 _type=pathscale
3379 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3380 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3381 _cflags_speed='-O2'
3382 _cflags_size='-Os'
3383 _flags_filter='filter_out -Wdisabled-optimization'
3384 elif $_cc -v 2>&1 | grep -q Open64; then
3385 _type=open64
3386 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3387 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3388 _cflags_speed='-O2'
3389 _cflags_size='-Os'
3390 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3391 elif $_cc -V 2>&1 | grep -q Portland; then
3392 _type=pgi
3393 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3394 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3395 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3396 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3397 _cflags_noopt="-O1"
3398 _flags_filter=pgi_flags
3399 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3400 _type=armasm
3401 _ident=$($_cc | head -n1)
3402 # 4509: "This form of conditional instruction is deprecated"
3403 _flags="-nologo -ignore 4509"
3404 _flags_filter=armasm_flags
3405 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3406 _type=msvc
3407 _ident=$($_cc 2>&1 | head -n1)
3408 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3409 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3410 _cflags_speed="-O2"
3411 _cflags_size="-O1"
3412 _cflags_noopt="-O1"
3413 if $_cc -nologo- 2>&1 | grep -q Linker; then
3414 _ld_o='-out:$@'
3415 else
3416 _ld_o='-Fe$@'
3417 fi
3418 _cc_o='-Fo$@'
3419 _cc_e='-P -Fi$@'
3420 _flags_filter=msvc_flags
3421 _ld_lib='lib%.a'
3422 _ld_path='-libpath:'
3423 _flags='-nologo'
3424 elif $_cc 2>&1 | grep -q Intel; then
3425 _type=icl
3426 _ident=$($_cc 2>&1 | head -n1)
3427 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3428 # Not only is O3 broken on 13.x+ but it is slower on all previous
3429 # versions (tested) as well.
3430 _cflags_speed="-O2"
3431 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3432 if $_cc 2>&1 | grep -q Linker; then
3433 _ld_o='-out:$@'
3434 else
3435 _ld_o='-Fe$@'
3436 fi
3437 _cc_o='-Fo$@'
3438 _cc_e='-P'
3439 _flags_filter=icl_flags
3440 _ld_lib='lib%.a'
3441 _ld_path='-libpath:'
3442 # -Qdiag-error to make icl error when seeing certain unknown arguments
3443 _flags='-nologo -Qdiag-error:4044,10157'
3444 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3445 # with MSVC which enables it by default.
3446 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3447 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3448 # lld can emulate multiple different linkers; in ms link.exe mode,
3449 # the -? parameter gives the help output which contains an identifyable
3450 # string, while it gives an error in other modes.
3451 _type=lld-link
3452 # The link.exe mode doesn't have a switch for getting the version,
3453 # but we can force it back to gnu mode and get the version from there.
3454 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3455 _ld_o='-out:$@'
3456 _flags_filter=msvc_flags
3457 _ld_lib='lib%.a'
3458 _ld_path='-libpath:'
3459 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3460 _type=cparser
3461 _ident=$($_cc --version | head -n1)
3462 _depflags='-MMD'
3463 _cflags_speed='-O4'
3464 _cflags_size='-O2'
3465 _flags_filter=cparser_flags
3466 fi
3467
3468 eval ${pfx}_type=\$_type
3469 eval ${pfx}_ident=\$_ident
3470 }
3471
3472 set_ccvars(){
3473 eval ${1}_C=\${_cc_c-\${${1}_C}}
3474 eval ${1}_E=\${_cc_e-\${${1}_E}}
3475 eval ${1}_O=\${_cc_o-\${${1}_O}}
3476
3477 if [ -n "$_depflags" ]; then
3478 eval ${1}_DEPFLAGS=\$_depflags
3479 else
3480 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3481 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3482 eval DEP${1}FLAGS=\$_flags
3483 fi
3484 }
3485
3486 probe_cc cc "$cc"
3487 cflags_filter=$_flags_filter
3488 cflags_speed=$_cflags_speed
3489 cflags_size=$_cflags_size
3490 cflags_noopt=$_cflags_noopt
3491 add_cflags $_flags $_cflags
3492 cc_ldflags=$_ldflags
3493 set_ccvars CC
3494
3495 probe_cc hostcc "$host_cc"
3496 host_cflags_filter=$_flags_filter
3497 host_cflags_speed=$_cflags_speed
3498 add_host_cflags $_flags $_cflags
3499 set_ccvars HOSTCC
3500
3501 test -n "$cc_type" && enable $cc_type ||
3502 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3503
3504 : ${as_default:=$cc}
3505 : ${objcc_default:=$cc}
3506 : ${dep_cc_default:=$cc}
3507 : ${ld_default:=$cc}
3508 : ${host_ld_default:=$host_cc}
3509 set_default ar as objcc dep_cc ld host_ld
3510
3511 probe_cc as "$as"
3512 asflags_filter=$_flags_filter
3513 add_asflags $_flags $_cflags
3514 set_ccvars AS
3515
3516 probe_cc objcc "$objcc"
3517 objcflags_filter=$_flags_filter
3518 add_objcflags $_flags $_cflags
3519 set_ccvars OBJC
3520
3521 probe_cc ld "$ld"
3522 ldflags_filter=$_flags_filter
3523 add_ldflags $_flags $_ldflags
3524 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3525 LD_O=${_ld_o-$LD_O}
3526 LD_LIB=${_ld_lib-$LD_LIB}
3527 LD_PATH=${_ld_path-$LD_PATH}
3528
3529 probe_cc hostld "$host_ld"
3530 host_ldflags_filter=$_flags_filter
3531 add_host_ldflags $_flags $_ldflags
3532 HOSTLD_O=${_ld_o-$HOSTLD_O}
3533
3534 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3535 probe_cc depcc "$dep_cc"
3536 CCDEP=${_DEPCMD:-$DEPCMD}
3537 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3538 DEPCCFLAGS=$_flags
3539 fi
3540
3541 if $ar 2>&1 | grep -q Microsoft; then
3542 arflags="-nologo"
3543 ar_o='-out:$@'
3544 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3545 arflags="rq"
3546 ar_o='$@'
3547 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3548 arflags='-Xany -r -c'
3549 ar_o='$@'
3550 else
3551 arflags="rc"
3552 ar_o='$@'
3553 fi
3554
3555 add_cflags $extra_cflags
3556 add_objcflags $extra_objcflags
3557 add_asflags $extra_cflags
3558
3559 if test -n "$sysroot"; then
3560 case "$cc_type" in
3561 gcc|llvm_gcc|clang)
3562 add_cppflags --sysroot="$sysroot"
3563 add_ldflags --sysroot="$sysroot"
3564 ;;
3565 tms470)
3566 add_cppflags -I"$sysinclude"
3567 add_ldflags --sysroot="$sysroot"
3568 ;;
3569 esac
3570 fi
3571
3572 if test "$cpu" = host; then
3573 enabled cross_compile &&
3574 die "--cpu=host makes no sense when cross-compiling."
3575
3576 case "$cc_type" in
3577 gcc|llvm_gcc)
3578 check_native(){
3579 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3580 sed -n "/cc1.*$1=/{
3581 s/.*$1=\\([^ ]*\\).*/\\1/
3582 p
3583 q
3584 }" $TMPE
3585 }
3586 cpu=$(check_native -march || check_native -mcpu)
3587 ;;
3588 esac
3589
3590 test "${cpu:-host}" = host &&
3591 die "--cpu=host not supported with compiler $cc"
3592 fi
3593
3594 # Deal with common $arch aliases
3595 case "$arch" in
3596 aarch64|arm64)
3597 arch="aarch64"
3598 ;;
3599 arm*)
3600 arch="arm"
3601 ;;
3602 mips*|IP*)
3603 case "$arch" in
3604 *el)
3605 add_cppflags -EL
3606 add_ldflags -EL
3607 ;;
3608 *eb)
3609 add_cppflags -EB
3610 add_ldflags -EB
3611 ;;
3612 esac
3613 arch="mips"
3614 ;;
3615 parisc*|hppa*)
3616 arch="parisc"
3617 ;;
3618 "Power Macintosh"|ppc*|powerpc*)
3619 arch="ppc"
3620 ;;
3621 s390|s390x)
3622 arch="s390"
3623 ;;
3624 sh4|sh)
3625 arch="sh4"
3626 ;;
3627 sun4u|sparc*)
3628 arch="sparc"
3629 ;;
3630 tilegx|tile-gx)
3631 arch="tilegx"
3632 ;;
3633 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3634 arch="x86"
3635 ;;
3636 esac
3637
3638 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3639 enable $arch
3640
3641 # Add processor-specific flags
3642 if enabled aarch64; then
3643
3644 case $cpu in
3645 armv*)
3646 cpuflags="-march=$cpu"
3647 ;;
3648 *)
3649 cpuflags="-mcpu=$cpu"
3650 ;;
3651 esac
3652
3653 elif enabled alpha; then
3654
3655 cpuflags="-mcpu=$cpu"
3656
3657 elif enabled arm; then
3658
3659 check_arm_arch() {
3660 check_cpp_condition stddef.h \
3661 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3662 $cpuflags
3663 }
3664
3665 probe_arm_arch() {
3666 if check_arm_arch 4; then echo armv4
3667 elif check_arm_arch 4T; then echo armv4t
3668 elif check_arm_arch 5; then echo armv5
3669 elif check_arm_arch 5E; then echo armv5e
3670 elif check_arm_arch 5T; then echo armv5t
3671 elif check_arm_arch 5TE; then echo armv5te
3672 elif check_arm_arch 5TEJ; then echo armv5te
3673 elif check_arm_arch 6; then echo armv6
3674 elif check_arm_arch 6J; then echo armv6j
3675 elif check_arm_arch 6K; then echo armv6k
3676 elif check_arm_arch 6Z; then echo armv6z
3677 elif check_arm_arch 6ZK; then echo armv6zk
3678 elif check_arm_arch 6T2; then echo armv6t2
3679 elif check_arm_arch 7; then echo armv7
3680 elif check_arm_arch 7A 7_A; then echo armv7-a
3681 elif check_arm_arch 7S; then echo armv7-a
3682 elif check_arm_arch 7R 7_R; then echo armv7-r
3683 elif check_arm_arch 7M 7_M; then echo armv7-m
3684 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3685 elif check_arm_arch 8A 8_A; then echo armv8-a
3686 fi
3687 }
3688
3689 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3690
3691 case $cpu in
3692 armv*)
3693 cpuflags="-march=$cpu"
3694 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3695 ;;
3696 *)
3697 cpuflags="-mcpu=$cpu"
3698 case $cpu in
3699 cortex-a*) subarch=armv7a ;;
3700 cortex-r*) subarch=armv7r ;;
3701 cortex-m*) enable thumb; subarch=armv7m ;;
3702 arm11*) subarch=armv6 ;;
3703 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3704 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3705 *) subarch=$(probe_arm_arch) ;;
3706 esac
3707 ;;
3708 esac
3709
3710 case "$subarch" in
3711 armv5t*) enable fast_clz ;;
3712 armv[6-8]*) enable fast_clz fast_unaligned ;;
3713 esac
3714
3715 elif enabled avr32; then
3716
3717 case $cpu in
3718 ap7[02]0[0-2])
3719 subarch="avr32_ap"
3720 cpuflags="-mpart=$cpu"
3721 ;;
3722 ap)
3723 subarch="avr32_ap"
3724 cpuflags="-march=$cpu"
3725 ;;
3726 uc3[ab]*)
3727 subarch="avr32_uc"
3728 cpuflags="-mcpu=$cpu"
3729 ;;
3730 uc)
3731 subarch="avr32_uc"
3732 cpuflags="-march=$cpu"
3733 ;;
3734 esac
3735
3736 elif enabled bfin; then
3737
3738 cpuflags="-mcpu=$cpu"
3739
3740 elif enabled mips; then
3741
3742 cpuflags="-march=$cpu"
3743
3744 elif enabled ppc; then
3745
3746 disable ldbrx
3747
3748 case $(tolower $cpu) in
3749 601|ppc601|powerpc601)
3750 cpuflags="-mcpu=601"
3751 disable altivec
3752 ;;
3753 603*|ppc603*|powerpc603*)
3754 cpuflags="-mcpu=603"
3755 disable altivec
3756 ;;
3757 604*|ppc604*|powerpc604*)
3758 cpuflags="-mcpu=604"
3759 disable altivec
3760 ;;
3761 g3|75*|ppc75*|powerpc75*)
3762 cpuflags="-mcpu=750"
3763 disable altivec
3764 ;;
3765 g4|745*|ppc745*|powerpc745*)
3766 cpuflags="-mcpu=7450"
3767 disable vsx
3768 ;;
3769 74*|ppc74*|powerpc74*)
3770 cpuflags="-mcpu=7400"
3771 disable vsx
3772 ;;
3773 g5|970|ppc970|powerpc970)
3774 cpuflags="-mcpu=970"
3775 disable vsx
3776 ;;
3777 power[3-6]*)
3778 cpuflags="-mcpu=$cpu"
3779 disable vsx
3780 ;;
3781 power[7-8]*)
3782 cpuflags="-mcpu=$cpu"
3783 enable ldbrx
3784 ;;
3785 cell)
3786 cpuflags="-mcpu=cell"
3787 enable ldbrx
3788 disable vsx
3789 ;;
3790 e500mc)
3791 cpuflags="-mcpu=e500mc"
3792 disable altivec
3793 ;;
3794 e500v2)
3795 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3796 disable altivec
3797 disable dcbzl
3798 ;;
3799 e500)
3800 cpuflags="-mcpu=8540 -mhard-float"
3801 disable altivec
3802 disable dcbzl
3803 ;;
3804 esac
3805
3806 elif enabled sparc; then
3807
3808 case $cpu in
3809 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3810 cpuflags="-mcpu=$cpu"
3811 ;;
3812 ultrasparc*|niagara[234])
3813 cpuflags="-mcpu=$cpu"
3814 ;;
3815 esac
3816
3817 elif enabled x86; then
3818
3819 case $cpu in
3820 i[345]86|pentium)
3821 cpuflags="-march=$cpu"
3822 disable i686
3823 disable mmx
3824 ;;
3825 # targets that do NOT support nopl and conditional mov (cmov)
3826 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3827 cpuflags="-march=$cpu"
3828 disable i686
3829 ;;
3830 # targets that do support nopl and conditional mov (cmov)
3831 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3832 cpuflags="-march=$cpu"
3833 enable i686
3834 enable fast_cmov
3835 ;;
3836 # targets that do support conditional mov but on which it's slow
3837 pentium4|pentium4m|prescott|nocona)
3838 cpuflags="-march=$cpu"
3839 enable i686
3840 disable fast_cmov
3841 ;;
3842 esac
3843
3844 fi
3845
3846 if [ "$cpu" != generic ]; then
3847 add_cflags $cpuflags
3848 add_asflags $cpuflags
3849 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3850 fi
3851
3852 # compiler sanity check
3853 check_exec <<EOF
3854 int main(void){ return 0; }
3855 EOF
3856 if test "$?" != 0; then
3857 echo "$cc is unable to create an executable file."
3858 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3859 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3860 echo "Only do this if you know what cross compiling means."
3861 fi
3862 die "C compiler test failed."
3863 fi
3864
3865 add_cppflags -D_ISOC99_SOURCE
3866
3867 # some compilers silently accept -std=c11, so we also need to check that the
3868 # version macro is defined properly
3869 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3870 add_cflags -std=c11 ||
3871 check_cflags -std=c99
3872
3873 check_cppflags -D_FILE_OFFSET_BITS=64
3874 check_cppflags -D_LARGEFILE_SOURCE
3875
3876 add_host_cppflags -D_ISOC99_SOURCE
3877 check_host_cflags -std=c99
3878 check_host_cflags -Wall
3879 check_host_cflags $host_cflags_speed
3880
3881 check_64bit(){
3882 arch32=$1
3883 arch64=$2
3884 expr=$3
3885 check_code cc "" "int test[2*($expr) - 1]" &&
3886 subarch=$arch64 || subarch=$arch32
3887 }
3888
3889 case "$arch" in
3890 aarch64|alpha|ia64)
3891 spic=$shared
3892 ;;
3893 mips)
3894 check_64bit mips mips64 '_MIPS_SIM > 1'
3895 spic=$shared
3896 ;;
3897 parisc)
3898 check_64bit parisc parisc64 'sizeof(void *) > 4'
3899 spic=$shared
3900 ;;
3901 ppc)
3902 check_64bit ppc ppc64 'sizeof(void *) > 4'
3903 spic=$shared
3904 ;;
3905 s390)
3906 check_64bit s390 s390x 'sizeof(void *) > 4'
3907 spic=$shared
3908 ;;
3909 sparc)
3910 check_64bit sparc sparc64 'sizeof(void *) > 4'
3911 spic=$shared
3912 ;;
3913 x86)
3914 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3915 if test "$subarch" = "x86_64"; then
3916 spic=$shared
3917 fi
3918 ;;
3919 esac
3920
3921 enable $subarch
3922 enabled spic && enable_weak pic
3923
3924 enabled x86_64 && objformat=elf64 || objformat="elf32"
3925
3926 # OS specific
3927 case $target_os in
3928 aix)
3929 SHFLAGS=-shared
3930 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3931 enabled shared && add_ldflags -Wl,-brtl
3932 ;;
3933 android)
3934 disable symver
3935 enable section_data_rel_ro
3936 SLIB_INSTALL_NAME='$(SLIBNAME)'
3937 SLIB_INSTALL_LINKS=
3938 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3939 ;;
3940 haiku)
3941 prefix_default="/boot/common"
3942 network_extralibs="-lnetwork"
3943 host_extralibs=
3944 ;;
3945 sunos)
3946 SHFLAGS='-shared -Wl,-h,$$(@F)'
3947 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3948 network_extralibs="-lsocket -lnsl"
3949 # When using suncc to build, the Solaris linker will mark
3950 # an executable with each instruction set encountered by
3951 # the Solaris assembler. As our libraries contain their own
3952 # guards for processor-specific code, instead suppress
3953 # generation of the HWCAPS ELF section on Solaris x86 only.
3954 enabled_all suncc x86 &&
3955 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3956 add_ldflags -Wl,-M,mapfile
3957 nm_default='nm -P -g'
3958 version_script='-M'
3959 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3960 ;;
3961 netbsd)
3962 disable symver
3963 oss_indev_extralibs="-lossaudio"
3964 oss_outdev_extralibs="-lossaudio"
3965 ;;
3966 openbsd|bitrig)
3967 disable symver
3968 SHFLAGS='-shared'
3969 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3970 SLIB_INSTALL_LINKS=
3971 oss_indev_extralibs="-lossaudio"
3972 oss_outdev_extralibs="-lossaudio"
3973 ;;
3974 dragonfly)
3975 disable symver
3976 ;;
3977 freebsd)
3978 ;;
3979 bsd/os)
3980 add_extralibs -lpoll -lgnugetopt
3981 ;;
3982 darwin)
3983 enabled ppc && add_asflags -force_cpusubtype_ALL
3984 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3985 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3986 add_ldflags -Wl,-dynamic,-search_paths_first
3987 check_cflags -Werror=partial-availability
3988 SLIBSUF=".dylib"
3989 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3990 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3991 enabled x86_64 && objformat="macho64" || objformat="macho32"
3992 enabled_any pic shared ||
3993 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3994 check_header dispatch/dispatch.h &&
3995 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3996 if test -n "$sysroot"; then
3997 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3998 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3999 fi
4000 ;;
4001 msys*)
4002 die "Native MSYS builds are discouraged, please use the MINGW environment."
4003 ;;
4004 mingw32*|mingw64*)
4005 target_os=mingw32
4006 LIBTARGET=i386
4007 if enabled x86_64; then
4008 LIBTARGET="i386:x86-64"
4009 fi
4010 if enabled shared; then
4011 # Cannot build both shared and static libs when using dllexport.
4012 disable static
4013 fi
4014 check_ldflags -Wl,--nxcompat
4015 check_ldflags -Wl,--dynamicbase
4016 shlibdir_default="$bindir_default"
4017 SLIBPREF=""
4018 SLIBSUF=".dll"
4019 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4020 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4021 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4022 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4023 SLIB_INSTALL_LINKS=
4024 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4025 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4026 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4027 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4028 enabled x86_64 && objformat="win64" || objformat="win32"
4029 dlltool="${cross_prefix}dlltool"
4030 ranlib=:
4031 enable dos_paths
4032 ;;
4033 win32|win64)
4034 disable symver
4035 if enabled shared; then
4036 # Link to the import library instead of the normal static library
4037 # for shared libs.
4038 LD_LIB='%.lib'
4039 # Cannot build both shared and static libs with MSVC or icl.
4040 disable static
4041 fi
4042 shlibdir_default="$bindir_default"
4043 SLIBPREF=""
4044 SLIBSUF=".dll"
4045 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4046 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4047 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4048 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4049 SLIB_INSTALL_LINKS=
4050 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4051 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4052 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4053 enabled x86_64 && objformat="win64" || objformat="win32"
4054 ranlib=:
4055 enable dos_paths
4056 ;;
4057 cygwin*)
4058 target_os=cygwin
4059 shlibdir_default="$bindir_default"
4060 SLIBPREF="cyg"
4061 SLIBSUF=".dll"
4062 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4063 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4064 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4065 SLIB_INSTALL_LINKS=
4066 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4067 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4068 enabled x86_64 && objformat="win64" || objformat="win32"
4069 enable dos_paths
4070 ;;
4071 *-dos|freedos|opendos)
4072 network_extralibs="-lsocket"
4073 objformat="coff"
4074 enable dos_paths
4075 add_cppflags -U__STRICT_ANSI__
4076 ;;
4077 linux)
4078 enable dv1394
4079 enable section_data_rel_ro
4080 ;;
4081 irix*)
4082 target_os=irix
4083 ranlib="echo ignoring ranlib"
4084 ;;
4085 os/2*)
4086 ln_s="cp -f"
4087 objformat="aout"
4088 add_cppflags -D_GNU_SOURCE
4089 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4090 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4091 LIBSUF="_s.a"
4092 SLIBPREF=""
4093 SLIBSUF=".dll"
4094 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4095 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4096 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4097 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4098 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4099 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4100 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4101 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4102 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4103 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4104 enable dos_paths
4105 ;;
4106 gnu/kfreebsd)
4107 add_cppflags -D_BSD_SOURCE
4108 ;;
4109 gnu)
4110 ;;
4111 qnx)
4112 add_cppflags -D_QNX_SOURCE
4113 network_extralibs="-lsocket"
4114 ;;
4115 symbian)
4116 SLIBSUF=".dll"
4117 enable dos_paths
4118 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4119 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4120 add_ldflags -Wl,--target1-abs,--no-undefined \
4121 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4122 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4123 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4124 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4125 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4126 ;;
4127 minix)
4128 ;;
4129 none)
4130 ;;
4131 *)
4132 die "Unknown OS '$target_os'."
4133 ;;
4134 esac
4135
4136 # determine libc flavour
4137
4138 probe_libc(){
4139 pfx=$1
4140 pfx_no_=${pfx%_}
4141 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4142 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4143 eval ${pfx}libc_type=uclibc
4144 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4145 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4146 eval ${pfx}libc_type=glibc
4147 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4148 # MinGW headers can be installed on Cygwin, so check for newlib first.
4149 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4150 eval ${pfx}libc_type=newlib
4151 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4152 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4153 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4154 eval ${pfx}libc_type=mingw64
4155 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4156 eval test \$${pfx_no_}cc_type = "gcc" &&
4157 add_${pfx}cppflags -D__printf__=__gnu_printf__
4158 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4159 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4160 eval ${pfx}libc_type=mingw32
4161 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4162 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4163 die "ERROR: MinGW32 runtime version must be >= 3.15."
4164 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4165 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4166 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4167 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4168 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4169 eval test \$${pfx_no_}cc_type = "gcc" &&
4170 add_${pfx}cppflags -D__printf__=__gnu_printf__
4171 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4172 eval ${pfx}libc_type=msvcrt
4173 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4174 if [ "$pfx" = host_ ]; then
4175 add_host_cppflags -Dsnprintf=_snprintf
4176 else
4177 add_compat strtod.o strtod=avpriv_strtod
4178 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4179 _snprintf=avpriv_snprintf \
4180 vsnprintf=avpriv_vsnprintf
4181 fi
4182 fi
4183 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4184 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4185 # 0x601 by default unless something else is set by the user.
4186 # This can easily lead to us detecting functions only present
4187 # in such new versions and producing binaries requiring windows 7.0.
4188 # Therefore explicitly set the default to XP unless the user has
4189 # set something else on the command line.
4190 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4191 # family. For these cases, configure is free to use any functions
4192 # found in the SDK headers by default. (Alternatively, we could force
4193 # _WIN32_WINNT to 0x0602 in that case.)
4194 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4195 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4196 #ifdef WINAPI_FAMILY
4197 #include <winapifamily.h>
4198 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4199 #error not desktop
4200 #endif
4201 #endif
4202 EOF
4203 if [ "$pfx" = "" ]; then
4204 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4205 fi
4206 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4207 eval ${pfx}libc_type=klibc
4208 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4209 eval ${pfx}libc_type=bionic
4210 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4211 eval ${pfx}libc_type=solaris
4212 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4213 else
4214 eval ${pfx}libc_type=default
4215 add_${pfx}cppflags -D_DEFAULT_SOURCE
4216 fi
4217 }
4218
4219 probe_libc
4220 test -n "$libc_type" && enable libc_$libc_type
4221 probe_libc host_
4222 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4223
4224 # hacks for compiler/libc/os combinations
4225
4226 case $libc_type in
4227 bionic)
4228 add_compat strtod.o strtod=avpriv_strtod
4229 ;;
4230 glibc)
4231 if enabled tms470; then
4232 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4233 add_cppflags -D__USER_LABEL_PREFIX__=
4234 add_cppflags -D__builtin_memset=memset
4235 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4236 add_cflags -pds=48 # incompatible redefinition of macro
4237 fi
4238 ;;
4239 esac
4240
4241 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4242 add_cppflags '-I\$(SRC_PATH)/compat/float'
4243
4244 esc(){
4245 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4246 }
4247
4248 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4249
4250 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4251
4252 set_default $PATHS_LIST
4253 set_default nm
4254
4255 # we need to build at least one lib type
4256 if ! enabled_any static shared; then
4257 cat <<EOF
4258 At least one library type must be built.
4259 Specify --enable-static to build the static libraries or --enable-shared to
4260 build the shared libraries as well. To only build the shared libraries specify
4261 --disable-static in addition to --enable-shared.
4262 EOF
4263 exit 1
4264 fi
4265
4266 disabled optimizations || check_cflags -fomit-frame-pointer
4267
4268 enable_weak_pic() {
4269 disabled pic && return
4270 enable pic
4271 add_cppflags -DPIC
4272 case "$target_os" in
4273 mingw*|cygwin*)
4274 ;;
4275 *)
4276 add_cflags -fPIC
4277 ;;
4278 esac
4279 add_asflags -fPIC
4280 }
4281
4282 enabled pic && enable_weak_pic
4283
4284 check_cc <<EOF || die "Symbol mangling check failed."
4285 int ff_extern;
4286 EOF
4287 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4288 extern_prefix=${sym%%ff_extern*}
4289
4290 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4291
4292 _restrict=
4293 for restrict_keyword in restrict __restrict__ __restrict; do
4294 check_cc <<EOF && _restrict=$restrict_keyword && break
4295 void foo(char * $restrict_keyword p);
4296 EOF
4297 done
4298
4299 check_cc <<EOF && enable pragma_deprecated
4300 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4301 EOF
4302
4303 check_cc <<EOF && enable attribute_packed
4304 struct { int x; } __attribute__((packed)) x;
4305 EOF
4306
4307 check_cc <<EOF && enable attribute_may_alias
4308 union { int x; } __attribute__((may_alias)) x;
4309 EOF
4310
4311 check_cc <<EOF || die "endian test failed"
4312 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4313 EOF
4314 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4315
4316 check_gas() {
4317 log "check_gas using '$as' as AS"
4318 # :vararg is used on aarch64, arm and ppc altivec
4319 check_as <<EOF || return 1
4320 .macro m n, y:vararg=0
4321 \n: .int \y
4322 .endm
4323 m x
4324 EOF
4325 # .altmacro is only used in arm asm
4326 ! enabled arm || check_as <<EOF || return 1
4327 .altmacro
4328 EOF
4329 enable gnu_as
4330 return 0
4331 }
4332
4333 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4334 nogas=:
4335 enabled_any arm aarch64 && nogas=die
4336 enabled_all ppc altivec && nogas=warn
4337 as_noop=-v
4338
4339 case $as_type in
4340 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4341 gcc) gaspp_as_type=gas ;;
4342 *) gaspp_as_type=$as_type ;;
4343 esac
4344
4345 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4346
4347 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4348 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4349
4350 if ! check_gas ; then
4351 as=${gas:=$as}
4352 check_gas || \
4353 $nogas "GNU assembler not found, install/update gas-preprocessor"
4354 fi
4355
4356 check_as <<EOF && enable as_func
4357 .func test
4358 .endfunc
4359 EOF
4360 fi
4361
4362 check_inline_asm inline_asm_labels '"1:\n"'
4363
4364 if enabled aarch64; then
4365 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4366 # internal assembler in clang 3.3 does not support this instruction
4367 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4368 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4369
4370 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4371
4372 elif enabled alpha; then
4373
4374 check_cflags -mieee</