build: Adjust dependencies for faan(i)dct components
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
241 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
242 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
243 --enable-libnpp Nvidia CUDA processing
244 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
245 --enable-nvenc Nvidia video encoding
246 --enable-omx OpenMAX IL
247 --enable-omx-rpi OpenMAX IL for Raspberry Pi
248 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
249 --enable-vda Apple Video Decode Acceleration [auto]
250 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251
252 Toolchain options:
253 --arch=ARCH select architecture [$arch]
254 --cpu=CPU select the minimum required CPU (affects
255 instruction selection, may crash on older CPUs)
256 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
257 --enable-cross-compile assume a cross-compiler is used
258 --sysroot=PATH root of cross-build tree
259 --sysinclude=PATH location of cross-build system headers
260 --target-os=OS compiler targets OS [$target_os]
261 --target-exec=CMD command to run executables on target
262 --target-path=DIR path to view of build directory on target
263 --target-samples=DIR path to samples directory on target
264 --toolchain=NAME set tool defaults according to NAME
265 --nm=NM use nm tool
266 --ar=AR use archive tool AR [$ar_default]
267 --as=AS use assembler AS [$as_default]
268 --cc=CC use C compiler CC [$cc_default]
269 --objcc=OCC use ObjC compiler OCC [$cc_default]
270 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
271 --ld=LD use linker LD
272 --x86asmexe=X86ASM use x86 assembler X86ASM
273 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
274 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
275 --host-cc=HOSTCC use host C compiler HOSTCC
276 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
277 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
278 --host-ld=HOSTLD use host linker HOSTLD
279 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
280 --host-libs=HLIBS use libs HLIBS when linking for host
281 --host-os=OS compiler host OS [$target_os]
282 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
283 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
284 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
285 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
286 --extra-libs=ELIBS add ELIBS [$ELIBS]
287 --extra-version=STRING version string suffix []
288 --optflags=OPTFLAGS override optimization-related compiler flags
289 --enable-pic build position-independent code
290 --enable-thumb compile for Thumb instruction set
291 --enable-lto use link-time optimization
292 --env="ENV=override" override the environment variables
293
294 Advanced options (experts only):
295 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
296 --custom-allocator=NAME use a supported custom allocator
297 --disable-symver disable symbol versioning
298 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
299 --disable-safe-bitstream-reader
300 disable buffer boundary checking in bitreaders
301 (faster, but may crash)
302 --enable-sram allow use of on-chip SRAM
303
304 Optimization options (experts only):
305 --disable-asm disable all assembly optimizations
306 --disable-altivec disable AltiVec optimizations
307 --disable-vsx disable VSX optimizations
308 --disable-power8 disable POWER8 optimizations
309 --disable-amd3dnow disable 3DNow! optimizations
310 --disable-amd3dnowext disable 3DNow! extended optimizations
311 --disable-mmx disable MMX optimizations
312 --disable-mmxext disable MMXEXT optimizations
313 --disable-sse disable SSE optimizations
314 --disable-sse2 disable SSE2 optimizations
315 --disable-sse3 disable SSE3 optimizations
316 --disable-ssse3 disable SSSE3 optimizations
317 --disable-sse4 disable SSE4 optimizations
318 --disable-sse42 disable SSE4.2 optimizations
319 --disable-avx disable AVX optimizations
320 --disable-xop disable XOP optimizations
321 --disable-fma3 disable FMA3 optimizations
322 --disable-fma4 disable FMA4 optimizations
323 --disable-avx2 disable AVX2 optimizations
324 --disable-armv5te disable armv5te optimizations
325 --disable-armv6 disable armv6 optimizations
326 --disable-armv6t2 disable armv6t2 optimizations
327 --disable-vfp disable VFP optimizations
328 --disable-neon disable NEON optimizations
329 --disable-inline-asm disable use of inline assembly
330 --disable-x86asm disable use of standalone x86 assembly
331
332 Developer options (useful when working on Libav itself):
333 --disable-debug disable debugging symbols
334 --enable-debug=LEVEL set the debug level [$debuglevel]
335 --disable-optimizations disable compiler optimizations
336 --enable-extra-warnings enable more compiler warnings
337 --samples=PATH location of test samples for FATE, if not set use
338 \$LIBAV_SAMPLES at make invocation time.
339 --enable-neon-clobber-test check NEON registers for clobbering (should be
340 used only for debugging purposes)
341 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
342 should be used only for debugging purposes)
343 --enable-random randomly enable/disable components
344 --disable-random
345 --enable-random=LIST randomly enable/disable specific components or
346 --disable-random=LIST component groups. LIST is a comma-separated list
347 of NAME[:PROB] entries where NAME is a component
348 (group) and PROB the probability associated with
349 NAME (default 0.5).
350 --random-seed=VALUE seed value for --enable/disable-random
351 --disable-valgrind-backtrace do not print a backtrace under Valgrind
352 (only applies to --disable-optimizations builds)
353 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
354 in the name) of tests whose result is ignored
355
356 NOTE: Object files are built at the place where configure is launched.
357 EOF
358 exit 0
359 }
360
361 quotes='""'
362
363 log(){
364 echo "$@" >> $logfile
365 }
366
367 log_file(){
368 log BEGIN $1
369 i=1
370 while read line; do
371 printf '%5s %s\n' "${i}" "${line}"
372 i=$(($i+1))
373 done < $1 >> $logfile
374 log END $1
375 }
376
377 echolog(){
378 log "$@"
379 echo "$@"
380 }
381
382 warn(){
383 log "WARNING: $*"
384 WARNINGS="${WARNINGS}WARNING: $*\n"
385 }
386
387 die(){
388 echolog "$@"
389 cat <<EOF
390
391 If you think configure made a mistake, make sure you are using the latest
392 version from Git. If the latest version fails, report the problem to the
393 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
394 EOF
395 if disabled logging; then
396 cat <<EOF
397 Rerun configure with logging enabled (do not use --disable-logging), and
398 include the log this produces with your report.
399 EOF
400 else
401 cat <<EOF
402 Include the log file "$logfile" produced by configure as this will help
403 solving the problem.
404 EOF
405 fi
406 exit 1
407 }
408
409 # Avoid locale weirdness, besides we really just want to translate ASCII.
410 toupper(){
411 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
412 }
413
414 tolower(){
415 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
416 }
417
418 c_escape(){
419 echo "$*" | sed 's/["\\]/\\\0/g'
420 }
421
422 sh_quote(){
423 v=$(echo "$1" | sed "s/'/'\\\\''/g")
424 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
425 echo "$v"
426 }
427
428 cleanws(){
429 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
430 }
431
432 filter(){
433 pat=$1
434 shift
435 for v; do
436 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
437 done
438 }
439
440 filter_out(){
441 pat=$1
442 shift
443 for v; do
444 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
445 done
446 }
447
448 map(){
449 m=$1
450 shift
451 for v; do eval $m; done
452 }
453
454 add_suffix(){
455 suffix=$1
456 shift
457 for v; do echo ${v}${suffix}; done
458 }
459
460 set_all(){
461 value=$1
462 shift
463 for var in $*; do
464 eval $var=$value
465 done
466 }
467
468 set_weak(){
469 value=$1
470 shift
471 for var; do
472 eval : \${$var:=$value}
473 done
474 }
475
476 sanitize_var_name(){
477 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
478 }
479
480 set_sanitized(){
481 var=$1
482 shift
483 eval $(sanitize_var_name "$var")='$*'
484 }
485
486 get_sanitized(){
487 eval echo \$$(sanitize_var_name "$1")
488 }
489
490 pushvar(){
491 for pvar in $*; do
492 eval level=\${${pvar}_level:=0}
493 eval ${pvar}_${level}="\$$pvar"
494 eval ${pvar}_level=$(($level+1))
495 done
496 }
497
498 popvar(){
499 for pvar in $*; do
500 eval level=\${${pvar}_level:-0}
501 test $level = 0 && continue
502 eval level=$(($level-1))
503 eval $pvar="\${${pvar}_${level}}"
504 eval ${pvar}_level=$level
505 eval unset ${pvar}_${level}
506 done
507 }
508
509 enable(){
510 set_all yes $*
511 }
512
513 disable(){
514 set_all no $*
515 }
516
517 enable_weak(){
518 set_weak yes $*
519 }
520
521 disable_weak(){
522 set_weak no $*
523 }
524
525 enable_sanitized(){
526 for var; do
527 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 disable_sanitized(){
532 for var; do
533 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
534 done
535 }
536
537 do_enable_deep(){
538 for var; do
539 enabled $var && continue
540 eval sel="\$${var}_select"
541 eval sgs="\$${var}_suggest"
542 pushvar var sgs
543 enable_deep $sel
544 popvar sgs
545 enable_deep_weak $sgs
546 popvar var
547 done
548 }
549
550 enable_deep(){
551 do_enable_deep $*
552 enable $*
553 }
554
555 enable_deep_weak(){
556 for var; do
557 disabled $var && continue
558 pushvar var
559 do_enable_deep $var
560 popvar var
561 enable_weak $var
562 done
563 }
564
565 enabled(){
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xyes"
568 }
569
570 disabled(){
571 test "${1#!}" = "$1" && op== || op=!=
572 eval test "x\$${1#!}" $op "xno"
573 }
574
575 enabled_all(){
576 for opt; do
577 enabled $opt || return 1
578 done
579 }
580
581 disabled_all(){
582 for opt; do
583 disabled $opt || return 1
584 done
585 }
586
587 enabled_any(){
588 for opt; do
589 enabled $opt && return 0
590 done
591 }
592
593 disabled_any(){
594 for opt; do
595 disabled $opt && return 0
596 done
597 return 1
598 }
599
600 set_default(){
601 for opt; do
602 eval : \${$opt:=\$${opt}_default}
603 done
604 }
605
606 is_in(){
607 value=$1
608 shift
609 for var in $*; do
610 [ $var = $value ] && return 0
611 done
612 return 1
613 }
614
615 check_deps(){
616 for cfg; do
617 enabled ${cfg}_checking && die "Circular dependency for $cfg."
618 disabled ${cfg}_checking && continue
619 enable ${cfg}_checking
620 append allopts $cfg
621
622 eval dep_all="\$${cfg}_deps"
623 eval dep_any="\$${cfg}_deps_any"
624 eval dep_con="\$${cfg}_conflict"
625 eval dep_sel="\$${cfg}_select"
626 eval dep_sgs="\$${cfg}_suggest"
627 eval dep_ifa="\$${cfg}_if"
628 eval dep_ifn="\$${cfg}_if_any"
629
630 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
631 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
632 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
633
634 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
635 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
636 enabled_all $dep_all || disable $cfg
637 enabled_any $dep_any || disable $cfg
638 disabled_all $dep_con || disable $cfg
639 disabled_any $dep_sel && disable $cfg
640
641 if enabled $cfg; then
642 enable_deep $dep_sel
643 enable_deep_weak $dep_sgs
644 for dep in $dep_all $dep_any $dep_sgs; do
645 # filter out library deps, these do not belong in extralibs
646 is_in $dep $LIBRARY_LIST && continue
647 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648 done
649 fi
650
651 disable ${cfg}_checking
652 done
653 }
654
655 print_config(){
656 pfx=$1
657 files=$2
658 shift 2
659 map 'eval echo "$v \${$v:-no}"' "$@" |
660 awk "BEGIN { split(\"$files\", files) }
661 {
662 c = \"$pfx\" toupper(\$1);
663 v = \$2;
664 sub(/yes/, 1, v);
665 sub(/no/, 0, v);
666 for (f in files) {
667 file = files[f];
668 if (file ~ /\\.h\$/) {
669 printf(\"#define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.asm\$/) {
671 printf(\"%%define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.mak\$/) {
673 n = -v ? \"\" : \"!\";
674 printf(\"%s%s=yes\\n\", n, c) >>file;
675 }
676 }
677 }"
678 }
679
680 print_enabled(){
681 suf=$1
682 shift
683 for v; do
684 enabled $v && printf "%s\n" ${v%$suf}
685 done
686 }
687
688 append(){
689 var=$1
690 shift
691 eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695 var=$1
696 shift
697 eval "$var=\"$* \$$var\""
698 }
699
700 unique(){
701 var=$1
702 uniq_list=""
703 for tok in $(eval echo \$$var); do
704 uniq_list="$(filter_out $tok $uniq_list) $tok"
705 done
706 eval "$var=\"${uniq_list}\""
707 }
708
709 resolve(){
710 var=$1
711 tmpvar=
712 for entry in $(eval echo \$$var); do
713 tmpvar="$tmpvar $(eval echo \$${entry})"
714 done
715 eval "$var=\"${tmpvar}\""
716 }
717
718 add_cppflags(){
719 append CPPFLAGS "$@"
720 }
721
722 add_cflags(){
723 append CFLAGS $($cflags_filter "$@")
724 }
725
726 add_cflags_headers(){
727 append CFLAGS_HEADERS $($cflags_filter "$@")
728 }
729
730 add_asflags(){
731 append ASFLAGS $($asflags_filter "$@")
732 }
733
734 add_objcflags(){
735 append OBJCFLAGS $($objcflags_filter "$@")
736 }
737
738 add_ldflags(){
739 append LDFLAGS $($ldflags_filter "$@")
740 }
741
742 add_ldexeflags(){
743 append LDEXEFLAGS $($ldflags_filter "$@")
744 }
745
746 add_stripflags(){
747 append STRIPFLAGS "$@"
748 }
749
750 add_extralibs(){
751 prepend extralibs $($ldflags_filter "$@")
752 }
753
754 add_host_cppflags(){
755 append host_cppflags "$@"
756 }
757
758 add_host_cflags(){
759 append host_cflags $($host_cflags_filter "$@")
760 }
761
762 add_host_ldflags(){
763 append host_ldflags $($host_ldflags_filter "$@")
764 }
765
766 add_compat(){
767 append compat_objs $1
768 shift
769 map 'add_cppflags -D$v' "$@"
770 }
771
772 check_cmd(){
773 log "$@"
774 "$@" >> $logfile 2>&1
775 }
776
777 cc_o(){
778 eval printf '%s\\n' $CC_O
779 }
780
781 cc_e(){
782 eval printf '%s\\n' $CC_E
783 }
784
785 check_cc(){
786 log check_cc "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
790 }
791
792 check_objcc(){
793 log check_objcc "$@"
794 cat > $TMPC
795 log_file $TMPC
796 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
797 }
798
799 check_cpp(){
800 log check_cpp "$@"
801 cat > $TMPC
802 log_file $TMPC
803 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
804 }
805
806 as_o(){
807 eval printf '%s\\n' $AS_O
808 }
809
810 check_as(){
811 log check_as "$@"
812 cat > $TMPS
813 log_file $TMPS
814 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
815 }
816
817 check_inline_asm(){
818 log check_inline_asm "$@"
819 name="$1"
820 code="$2"
821 shift 2
822 disable $name
823 check_cc "$@" <<EOF && enable $name
824 void foo(void){ __asm__ volatile($code); }
825 EOF
826 }
827
828 check_insn(){
829 log check_insn "$@"
830 check_inline_asm ${1}_inline "\"$2\""
831 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
832 }
833
834 check_x86asm(){
835 log check_x86asm "$@"
836 echo "$1" > $TMPS
837 log_file $TMPS
838 shift 1
839 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
840 }
841
842 ld_o(){
843 eval printf '%s\\n' $LD_O
844 }
845
846 check_ld(){
847 log check_ld "$@"
848 flags=$(filter_out '-l*' "$@")
849 libs=$(filter '-l*' "$@")
850 check_cc $($cflags_filter $flags) || return
851 flags=$($ldflags_filter $flags)
852 libs=$($ldflags_filter $libs)
853 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
854 }
855
856 print_include(){
857 hdr=$1
858 test "${hdr%.h}" = "${hdr}" &&
859 echo "#include $hdr" ||
860 echo "#include <$hdr>"
861 }
862
863 check_code(){
864 log check_code "$@"
865 check=$1
866 headers=$2
867 code=$3
868 shift 3
869 {
870 for hdr in $headers; do
871 print_include $hdr
872 done
873 echo "int main(void) { $code; return 0; }"
874 } | check_$check "$@"
875 }
876
877 check_cppflags(){
878 log check_cppflags "$@"
879 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
880 #include <stdlib.h>;
881 EOF
882 }
883
884 test_cflags(){
885 log test_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_cc "$@" <<EOF
888 int x;
889 EOF
890 }
891
892 check_cflags(){
893 log check_cflags "$@"
894 test_cflags "$@" && add_cflags "$@"
895 }
896
897 test_objcflags(){
898 log test_objcflags "$@"
899 set -- $($objcflags_filter "$@")
900 check_objcc "$@" <<EOF
901 int x;
902 EOF
903 }
904
905 check_objcflags(){
906 log check_objcflags "$@"
907 test_objcflags "$@" && add_objcflags "$@"
908 }
909
910 test_ldflags(){
911 log test_ldflags "$@"
912 check_ld "$@" <<EOF
913 int main(void){ return 0; }
914 EOF
915 }
916
917 check_ldflags(){
918 log check_ldflags "$@"
919 test_ldflags "$@" && add_ldflags "$@"
920 }
921
922 test_stripflags(){
923 log test_stripflags "$@"
924 # call check_cc to get a fresh TMPO
925 check_cc <<EOF
926 int main(void) { return 0; }
927 EOF
928 check_cmd $strip $STRIPFLAGS "$@" $TMPO
929 }
930
931 check_stripflags(){
932 log check_stripflags "$@"
933 test_stripflags "$@" && add_stripflags "$@"
934 }
935
936 check_header(){
937 log check_header "$@"
938 header=$1
939 shift
940 disable_sanitized $header
941 check_cpp "$@" <<EOF && enable_sanitized $header
942 #include <$header>
943 int x;
944 EOF
945 }
946
947 check_func(){
948 log check_func "$@"
949 func=$1
950 shift
951 disable $func
952 check_ld "$@" <<EOF && enable $func
953 extern int $func();
954 int main(void){ $func(); }
955 EOF
956 }
957
958 check_mathfunc(){
959 log check_mathfunc "$@"
960 func=$1
961 narg=$2
962 shift 2
963 test $narg = 2 && args="f, g" || args="f"
964 disable $func
965 check_ld "$@" <<EOF && enable $func
966 #include <math.h>
967 float foo(float f, float g) { return $func($args); }
968 int main(void){ return 0; }
969 EOF
970 }
971
972 check_func_headers(){
973 log check_func_headers "$@"
974 headers=$1
975 funcs=$2
976 shift 2
977 {
978 for hdr in $headers; do
979 print_include $hdr
980 done
981 for func in $funcs; do
982 echo "long check_$func(void) { return (long) $func; }"
983 done
984 echo "int main(void) { return 0; }"
985 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
986 }
987
988 check_cpp_condition(){
989 log check_cpp_condition "$@"
990 header=$1
991 condition=$2
992 shift 2
993 check_cpp "$@" <<EOF
994 #include <$header>
995 #if !($condition)
996 #error "unsatisfied condition: $condition"
997 #endif
998 EOF
999 }
1000
1001 test_cflags_cpp(){
1002 log test_cflags_cpp "$@"
1003 flags=$1
1004 condition=$2
1005 shift 2
1006 set -- $($cflags_filter "$flags")
1007 check_cpp "$@" <<EOF
1008 #if !($condition)
1009 #error "unsatisfied condition: $condition"
1010 #endif
1011 EOF
1012 }
1013
1014 check_lib(){
1015 log check_lib "$@"
1016 name="$1"
1017 headers="$2"
1018 funcs="$3"
1019 shift 3
1020 disable $name
1021 check_func_headers "$headers" "$funcs" "$@" &&
1022 enable $name && eval ${name}_extralibs="\$@"
1023 }
1024
1025 check_pkg_config(){
1026 log check_pkg_config "$@"
1027 name="$1"
1028 pkg_version="$2"
1029 pkg="${2%% *}"
1030 headers="$3"
1031 funcs="$4"
1032 shift 4
1033 disable $name
1034 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1035 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1036 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1037 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1038 enable $name &&
1039 add_cflags "$pkg_cflags" &&
1040 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1041 }
1042
1043 check_exec(){
1044 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1045 }
1046
1047 check_exec_crash(){
1048 log check_exec_crash "$@"
1049 code=$(cat)
1050
1051 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1052 # are safe but may not be available everywhere. Thus we use
1053 # raise(SIGTERM) instead. The check is run in a subshell so we
1054 # can redirect the "Terminated" message from the shell. SIGBUS
1055 # is not defined by standard C so it is used conditionally.
1056
1057 (check_exec "$@") >> $logfile 2>&1 <<EOF
1058 #include <signal.h>
1059 static void sighandler(int sig){
1060 raise(SIGTERM);
1061 }
1062 int foo(void){
1063 $code
1064 }
1065 int (*func_ptr)(void) = foo;
1066 int main(void){
1067 signal(SIGILL, sighandler);
1068 signal(SIGFPE, sighandler);
1069 signal(SIGSEGV, sighandler);
1070 #ifdef SIGBUS
1071 signal(SIGBUS, sighandler);
1072 #endif
1073 return func_ptr();
1074 }
1075 EOF
1076 }
1077
1078 check_type(){
1079 log check_type "$@"
1080 headers=$1
1081 type=$2
1082 shift 2
1083 disable_sanitized "$type"
1084 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1085 }
1086
1087 check_struct(){
1088 log check_struct "$@"
1089 headers=$1
1090 struct=$2
1091 member=$3
1092 shift 3
1093 disable_sanitized "${struct}_${member}"
1094 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1095 enable_sanitized "${struct}_${member}"
1096 }
1097
1098 check_builtin(){
1099 log check_builtin "$@"
1100 name=$1
1101 headers=$2
1102 builtin=$3
1103 shift 3
1104 disable "$name"
1105 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1106 }
1107
1108 check_compile_assert(){
1109 log check_compile_assert "$@"
1110 name=$1
1111 headers=$2
1112 condition=$3
1113 shift 3
1114 disable "$name"
1115 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1116 }
1117
1118 require(){
1119 log require "$@"
1120 name_version="$1"
1121 name="${1%% *}"
1122 headers="$2"
1123 func="$3"
1124 shift 3
1125 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1126 }
1127
1128 require_header(){
1129 log require "$@"
1130 header="$1"
1131 shift
1132 check_header "$header" "$@" || die "ERROR: $header not found"
1133 }
1134
1135 require_cpp_condition(){
1136 log require "$@"
1137 header="$1"
1138 condition="$2"
1139 shift 2
1140 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1141 }
1142
1143 require_pkg_config(){
1144 log require_pkg_config "$@"
1145 pkg_version="$2"
1146 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1147 }
1148
1149 hostcc_e(){
1150 eval printf '%s\\n' $HOSTCC_E
1151 }
1152
1153 hostcc_o(){
1154 eval printf '%s\\n' $HOSTCC_O
1155 }
1156
1157 check_host_cc(){
1158 log check_host_cc "$@"
1159 cat > $TMPC
1160 log_file $TMPC
1161 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1162 }
1163
1164 check_host_cpp(){
1165 log check_host_cpp "$@"
1166 cat > $TMPC
1167 log_file $TMPC
1168 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1169 }
1170
1171 check_host_cppflags(){
1172 log check_host_cppflags "$@"
1173 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1174 #include <stdlib.h>;
1175 EOF
1176 }
1177
1178 check_host_cflags(){
1179 log check_host_cflags "$@"
1180 set -- $($host_cflags_filter "$@")
1181 check_host_cc "$@" <<EOF && append host_cflags "$@"
1182 int x;
1183 EOF
1184 }
1185
1186 check_host_cpp_condition(){
1187 log check_host_cpp_condition "$@"
1188 header=$1
1189 condition=$2
1190 shift 2
1191 check_host_cpp "$@" <<EOF
1192 #include <$header>
1193 #if !($condition)
1194 #error "unsatisfied condition: $condition"
1195 #endif
1196 EOF
1197 }
1198
1199 apply(){
1200 file=$1
1201 shift
1202 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1203 }
1204
1205 cp_if_changed(){
1206 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1207 mkdir -p "$(dirname $2)"
1208 cp -f "$1" "$2"
1209 }
1210
1211 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1212 # system-dependent things.
1213
1214 AVCODEC_COMPONENTS="
1215 bsfs
1216 decoders
1217 encoders
1218 hwaccels
1219 parsers
1220 "
1221
1222 AVDEVICE_COMPONENTS="
1223 indevs
1224 outdevs
1225 "
1226 AVFILTER_COMPONENTS="
1227 filters
1228 "
1229 AVFORMAT_COMPONENTS="
1230 demuxers
1231 muxers
1232 protocols
1233 "
1234
1235 AVRESAMPLE_COMPONENTS=""
1236 AVUTIL_COMPONENTS=""
1237
1238 COMPONENT_LIST="
1239 $AVCODEC_COMPONENTS
1240 $AVDEVICE_COMPONENTS
1241 $AVFILTER_COMPONENTS
1242 $AVFORMAT_COMPONENTS
1243 $AVRESAMPLE_COMPONENTS
1244 $AVUTIL_COMPONENTS
1245 "
1246
1247 EXAMPLE_LIST="
1248 decode_audio_example
1249 decode_video_example
1250 encode_audio_example
1251 encode_video_example
1252 filter_audio_example
1253 metadata_example
1254 output_example
1255 qsvdec_example
1256 transcode_aac_example
1257 "
1258
1259 # catchall list of things that require external libs to link
1260 EXTRALIBS_LIST="
1261 cpu_init
1262 cws2fws
1263 "
1264
1265 HWACCEL_LIBRARY_NONFREE_LIST="
1266 cuda
1267 libnpp
1268 "
1269 HWACCEL_LIBRARY_LIST="
1270 $HWACCEL_LIBRARY_NONFREE_LIST
1271 d3d11va
1272 dxva2
1273 libmfx
1274 mmal
1275 nvenc
1276 omx
1277 vaapi
1278 vda
1279 vdpau
1280 "
1281
1282 EXTERNAL_LIBRARY_GPL_LIST="
1283 libcdio
1284 libx264
1285 libx265
1286 libxavs
1287 libxvid
1288 "
1289
1290 EXTERNAL_LIBRARY_NONFREE_LIST="
1291 libfaac
1292 libfdk_aac
1293 openssl
1294 "
1295
1296 EXTERNAL_LIBRARY_VERSION3_LIST="
1297 libopencore_amrnb
1298 libopencore_amrwb
1299 libvo_aacenc
1300 libvo_amrwbenc
1301 "
1302
1303 EXTERNAL_LIBRARY_LIST="
1304 $EXTERNAL_LIBRARY_GPL_LIST
1305 $EXTERNAL_LIBRARY_NONFREE_LIST
1306 $EXTERNAL_LIBRARY_VERSION3_LIST
1307 avisynth
1308 avxsynth
1309 frei0r
1310 gnutls
1311 libbs2b
1312 libdc1394
1313 libdcadec
1314 libfontconfig
1315 libfreetype
1316 libgsm
1317 libhdcd
1318 libilbc
1319 libjack
1320 libkvazaar
1321 libmp3lame
1322 libopencv
1323 libopenh264
1324 libopenjpeg
1325 libopus
1326 libpulse
1327 librtmp
1328 libschroedinger
1329 libsnappy
1330 libspeex
1331 libtheora
1332 libtwolame
1333 libvorbis
1334 libvpx
1335 libwavpack
1336 libwebp
1337 libxcb
1338 libxcb_shm
1339 libxcb_xfixes
1340 "
1341
1342 SYSTEM_LIBRARY_LIST="
1343 bzlib
1344 zlib
1345 "
1346
1347 FEATURE_LIST="
1348 gray
1349 hardcoded_tables
1350 omx_rpi
1351 runtime_cpudetect
1352 safe_bitstream_reader
1353 shared
1354 small
1355 sram
1356 static
1357 swscale_alpha
1358 "
1359
1360 LIBRARY_LIST="
1361 avcodec
1362 avdevice
1363 avfilter
1364 avformat
1365 avresample
1366 avutil
1367 swscale
1368 "
1369
1370 LICENSE_LIST="
1371 gpl
1372 nonfree
1373 version3
1374 "
1375
1376 PROGRAM_LIST="
1377 avconv
1378 avplay
1379 avprobe
1380 "
1381
1382 SUBSYSTEM_LIST="
1383 dct
1384 doc
1385 error_resilience
1386 faan
1387 fft
1388 lsp
1389 lzo
1390 mdct
1391 network
1392 rdft
1393 "
1394
1395 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1396 CONFIG_LIST="
1397 $EXAMPLE_LIST
1398 $EXTERNAL_LIBRARY_LIST
1399 $HWACCEL_LIBRARY_LIST
1400 $FEATURE_LIST
1401 $LICENSE_LIST
1402 $LIBRARY_LIST
1403 $PROGRAM_LIST
1404 $SUBSYSTEM_LIST
1405 $SYSTEM_LIBRARY_LIST
1406 neon_clobber_test
1407 pic
1408 pod2man
1409 texi2html
1410 thumb
1411 valgrind_backtrace
1412 xmm_clobber_test
1413 $COMPONENT_LIST
1414 "
1415
1416 THREADS_LIST="
1417 pthreads
1418 w32threads
1419 "
1420
1421 ATOMICS_LIST="
1422 atomics_gcc
1423 atomics_suncc
1424 atomics_win32
1425 "
1426
1427 ARCH_LIST="
1428 aarch64
1429 alpha
1430 arm
1431 avr32
1432 avr32_ap
1433 avr32_uc
1434 bfin
1435 ia64
1436 m68k
1437 mips
1438 mips64
1439 parisc
1440 ppc
1441 ppc64
1442 s390
1443 sh4
1444 sparc
1445 sparc64
1446 tilegx
1447 tilepro
1448 tomi
1449 x86
1450 x86_32
1451 x86_64
1452 "
1453
1454 ARCH_EXT_LIST_ARM="
1455 armv5te
1456 armv6
1457 armv6t2
1458 armv8
1459 neon
1460 vfp
1461 vfpv3
1462 "
1463
1464 ARCH_EXT_LIST_X86_SIMD="
1465 amd3dnow
1466 amd3dnowext
1467 avx
1468 avx2
1469 fma3
1470 fma4
1471 mmx
1472 mmxext
1473 sse
1474 sse2
1475 sse3
1476 sse4
1477 sse42
1478 ssse3
1479 xop
1480 "
1481
1482 ARCH_EXT_LIST_PPC="
1483 altivec
1484 dcbzl
1485 ldbrx
1486 power8
1487 ppc4xx
1488 vsx
1489 "
1490
1491 ARCH_EXT_LIST_X86="
1492 $ARCH_EXT_LIST_X86_SIMD
1493 cpunop
1494 i686
1495 "
1496
1497 ARCH_EXT_LIST_MIPS="
1498 loongson
1499 mips32r1
1500 mips64r1
1501 mips32r2
1502 mips64r2
1503 mips32r6
1504 mips64r6
1505 "
1506
1507 ARCH_EXT_LIST="
1508 $ARCH_EXT_LIST_ARM
1509 $ARCH_EXT_LIST_MIPS
1510 $ARCH_EXT_LIST_PPC
1511 $ARCH_EXT_LIST_X86
1512 vis
1513 "
1514
1515 ARCH_FEATURES="
1516 aligned_stack
1517 fast_64bit
1518 fast_clz
1519 fast_cmov
1520 local_aligned_8
1521 local_aligned_16
1522 local_aligned_32
1523 simd_align_16
1524 simd_align_32
1525 "
1526
1527 BUILTIN_LIST="
1528 atomic_cas_ptr
1529 machine_rw_barrier
1530 MemoryBarrier
1531 mm_empty
1532 rdtsc
1533 sem_timedwait
1534 sync_val_compare_and_swap
1535 "
1536 HAVE_LIST_CMDLINE="
1537 inline_asm
1538 symver
1539 x86asm
1540 "
1541
1542 HAVE_LIST_PUB="
1543 bigendian
1544 fast_unaligned
1545 "
1546
1547 HEADERS_LIST="
1548 AVFoundation_AVFoundation_h
1549 alsa_asoundlib_h
1550 arpa_inet_h
1551 cdio_paranoia_h
1552 cdio_paranoia_paranoia_h
1553 d3d11_h
1554 dispatch_dispatch_h
1555 dev_bktr_ioctl_bt848_h
1556 dev_bktr_ioctl_meteor_h
1557 dev_ic_bt8xx_h
1558 dev_video_bktr_ioctl_bt848_h
1559 dev_video_meteor_ioctl_meteor_h
1560 direct_h
1561 dlfcn_h
1562 dxva_h
1563 gsm_h
1564 io_h
1565 mach_mach_time_h
1566 machine_ioctl_bt848_h
1567 machine_ioctl_meteor_h
1568 malloc_h
1569 poll_h
1570 sndio_h
1571 soundcard_h
1572 stdatomic_h
1573 sys_mman_h
1574 sys_param_h
1575 sys_resource_h
1576 sys_select_h
1577 sys_soundcard_h
1578 sys_time_h
1579 sys_un_h
1580 sys_videoio_h
1581 unistd_h
1582 valgrind_valgrind_h
1583 windows_h
1584 winsock2_h
1585 "
1586
1587 INTRINSICS_LIST="
1588 intrinsics_neon
1589 "
1590
1591 MATH_FUNCS="
1592 atanf
1593 atan2f
1594 cbrtf
1595 cosf
1596 exp2
1597 exp2f
1598 expf
1599 isinf
1600 isnan
1601 ldexpf
1602 llrint
1603 llrintf
1604 log2
1605 log2f
1606 log10f
1607 lrint
1608 lrintf
1609 powf
1610 rint
1611 round
1612 roundf
1613 sinf
1614 trunc
1615 truncf
1616 "
1617
1618 SYSTEM_FUNCS="
1619 aligned_malloc
1620 clock_gettime
1621 closesocket
1622 CommandLineToArgvW
1623 CoTaskMemFree
1624 CryptGenRandom
1625 fcntl
1626 flt_lim
1627 fork
1628 getaddrinfo
1629 gethrtime
1630 getopt
1631 GetProcessAffinityMask
1632 GetProcessMemoryInfo
1633 GetProcessTimes
1634 getrusage
1635 GetSystemTimeAsFileTime
1636 gettimeofday
1637 gmtime_r
1638 inet_aton
1639 isatty
1640 LoadLibrary
1641 localtime_r
1642 mach_absolute_time
1643 MapViewOfFile
1644 memalign
1645 mkstemp
1646 mmap
1647 mprotect
1648 nanosleep
1649 posix_memalign
1650 sched_getaffinity
1651 SetConsoleTextAttribute
1652 setmode
1653 setrlimit
1654 Sleep
1655 strerror_r
1656 sysconf
1657 sysctl
1658 usleep
1659 VirtualAlloc
1660 "
1661
1662 TOOLCHAIN_FEATURES="
1663 as_arch_directive
1664 as_fpu_directive
1665 as_func
1666 as_object_arch
1667 asm_mod_q
1668 attribute_may_alias
1669 attribute_packed
1670 blocks_extension
1671 ebp_available
1672 ebx_available
1673 gnu_as
1674 ibm_asm
1675 inline_asm_labels
1676 pragma_deprecated
1677 symver_asm_label
1678 symver_gnu_asm
1679 vfp_args
1680 xform_asm
1681 xmm_clobbers
1682 "
1683
1684 TYPES_LIST="
1685 CONDITION_VARIABLE_Ptr
1686 socklen_t
1687 struct_addrinfo
1688 struct_group_source_req
1689 struct_ip_mreq_source
1690 struct_ipv6_mreq
1691 struct_pollfd
1692 struct_rusage_ru_maxrss
1693 struct_sockaddr_in6
1694 struct_sockaddr_sa_len
1695 struct_sockaddr_storage
1696 struct_v4l2_frmivalenum_discrete
1697 "
1698
1699 HAVE_LIST="
1700 $ARCH_EXT_LIST
1701 $(add_suffix _external $ARCH_EXT_LIST)
1702 $(add_suffix _inline $ARCH_EXT_LIST)
1703 $ARCH_FEATURES
1704 $BUILTIN_LIST
1705 $HAVE_LIST_CMDLINE
1706 $HAVE_LIST_PUB
1707 $HEADERS_LIST
1708 $INTRINSICS_LIST
1709 $MATH_FUNCS
1710 $SYSTEM_FUNCS
1711 $THREADS_LIST
1712 $TOOLCHAIN_FEATURES
1713 $TYPES_LIST
1714 dos_paths
1715 libc_msvcrt
1716 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1717 sdl
1718 section_data_rel_ro
1719 threads
1720 vaapi_drm
1721 vaapi_x11
1722 vdpau_x11
1723 "
1724
1725 # options emitted with CONFIG_ prefix but not available on the command line
1726 CONFIG_EXTRA="
1727 aandcttables
1728 ac3dsp
1729 adts_header
1730 audio_frame_queue
1731 audiodsp
1732 blockdsp
1733 bswapdsp
1734 cabac
1735 dirac_parse
1736 dvprofile
1737 faandct
1738 faanidct
1739 fdctdsp
1740 flacdsp
1741 fmtconvert
1742 g722dsp
1743 gmp
1744 golomb
1745 gplv3
1746 h263dsp
1747 h264chroma
1748 h264dsp
1749 h264parse
1750 h264pred
1751 h264qpel
1752 hevc_ps
1753 hpeldsp
1754 huffman
1755 huffyuvdsp
1756 huffyuvencdsp
1757 idctdsp
1758 iirfilter
1759 imdct15
1760 intrax8
1761 iso_media
1762 ividsp
1763 jpegtables
1764 lgplv3
1765 libx262
1766 libxcb_shape
1767 lpc
1768 lzf
1769 me_cmp
1770 mpeg_er
1771 mpegaudio
1772 mpegaudiodsp
1773 mpegaudioheader
1774 mpegvideo
1775 mpegvideoenc
1776 mss34dsp
1777 pixblockdsp
1778 qpeldsp
1779 qsv
1780 qsvdec
1781 qsvenc
1782 rangecoder
1783 riffdec
1784 riffenc
1785 rtpdec
1786 rtpenc_chain
1787 rv34dsp
1788 sinewin
1789 snappy
1790 srtp
1791 startcode
1792 texturedsp
1793 texturedspenc
1794 tpeldsp
1795 vaapi_encode
1796 vc1dsp
1797 videodsp
1798 vp3dsp
1799 vp56dsp
1800 vp8dsp
1801 wma_freqs
1802 wmv2dsp
1803 "
1804
1805 CMDLINE_SELECT="
1806 $ARCH_EXT_LIST
1807 $CONFIG_LIST
1808 $HAVE_LIST_CMDLINE
1809 $THREADS_LIST
1810 asm
1811 cross_compile
1812 debug
1813 extra_warnings
1814 logging
1815 lto
1816 optimizations
1817 rpath
1818 "
1819
1820 PATHS_LIST="
1821 bindir
1822 datadir
1823 docdir
1824 incdir
1825 libdir
1826 mandir
1827 prefix
1828 shlibdir
1829 "
1830
1831 CMDLINE_SET="
1832 $PATHS_LIST
1833 ar
1834 arch
1835 as
1836 cc
1837 objcc
1838 cpu
1839 cross_prefix
1840 custom_allocator
1841 dep_cc
1842 env
1843 extra_version
1844 host_cc
1845 host_cflags
1846 host_extralibs
1847 host_ld
1848 host_ldflags
1849 host_os
1850 ignore_tests
1851 ld
1852 logfile
1853 malloc_prefix
1854 nm
1855 optflags
1856 pkg_config
1857 pkg_config_flags
1858 random_seed
1859 samples
1860 sysinclude
1861 sysroot
1862 target_exec
1863 target_os
1864 target_path
1865 target_samples
1866 toolchain
1867 x86asmexe
1868 "
1869
1870 CMDLINE_APPEND="
1871 extra_cflags
1872 extra_objcflags
1873 host_cppflags
1874 "
1875
1876 # code dependency declarations
1877
1878 # architecture extensions
1879
1880 armv5te_deps="arm"
1881 armv6_deps="arm"
1882 armv6t2_deps="arm"
1883 armv8_deps="aarch64"
1884 neon_deps_any="aarch64 arm"
1885 intrinsics_neon_deps="neon"
1886 vfp_deps_any="aarch64 arm"
1887 vfpv3_deps="vfp"
1888
1889 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1890
1891 altivec_deps="ppc"
1892 dcbzl_deps="ppc"
1893 ldbrx_deps="ppc"
1894 ppc4xx_deps="ppc"
1895 vsx_deps="altivec"
1896 power8_deps="vsx"
1897
1898 loongson_deps="mips"
1899 mips32r1_deps="mips32"
1900 mips32r2_deps="mips32"
1901 mips32r6_deps="mips32"
1902 mips64r1_deps="mips64"
1903 mips64r2_deps="mips64"
1904 mips64r6_deps="mips64"
1905
1906 vis_deps="sparc"
1907
1908 cpunop_deps="i686"
1909 x86_64_select="i686"
1910 x86_64_suggest="fast_cmov"
1911
1912 amd3dnow_deps="mmx"
1913 amd3dnowext_deps="amd3dnow"
1914 i686_deps="x86"
1915 mmx_deps="x86"
1916 mmxext_deps="mmx"
1917 sse_deps="mmxext"
1918 sse2_deps="sse"
1919 sse3_deps="sse2"
1920 ssse3_deps="sse3"
1921 sse4_deps="ssse3"
1922 sse42_deps="sse4"
1923 avx_deps="sse42"
1924 xop_deps="avx"
1925 fma3_deps="avx"
1926 fma4_deps="avx"
1927 avx2_deps="avx"
1928
1929 mmx_external_deps="x86asm"
1930 mmx_inline_deps="inline_asm x86"
1931 mmx_suggest="mmx_external mmx_inline"
1932
1933 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1934 eval dep=\$${ext}_deps
1935 eval ${ext}_external_deps='"${dep}_external"'
1936 eval ${ext}_inline_deps='"${dep}_inline"'
1937 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1938 done
1939
1940 aligned_stack_if_any="aarch64 ppc x86"
1941 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1942 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1943 fast_unaligned_if_any="aarch64 ppc x86"
1944 simd_align_16_if_any="altivec neon sse"
1945 simd_align_32_if_any="avx"
1946
1947 # system capabilities
1948 symver_if_any="symver_asm_label symver_gnu_asm"
1949 valgrind_backtrace_conflict="optimizations"
1950 valgrind_backtrace_deps="valgrind_valgrind_h"
1951
1952 # threading support
1953 atomics_gcc_if="sync_val_compare_and_swap"
1954 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1955 atomics_win32_if="MemoryBarrier"
1956 atomics_native_if_any="$ATOMICS_LIST"
1957 w32threads_deps="atomics_native"
1958 threads_if_any="$THREADS_LIST"
1959
1960 # subsystems
1961 dct_select="rdft"
1962 dirac_parse_select="golomb"
1963 error_resilience_select="me_cmp"
1964 faandct_deps="faan"
1965 faandct_select="fdctdsp"
1966 faanidct_deps="faan"
1967 faanidct_select="idctdsp"
1968 h264dsp_select="startcode"
1969 hevc_ps_select="golomb"
1970 intrax8_select="blockdsp idctdsp"
1971 mdct_select="fft"
1972 rdft_select="fft"
1973 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1974 mpeg_er_select="error_resilience"
1975 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1976 mpegaudiodsp_select="dct"
1977 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1978 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1979 vc1dsp_select="h264chroma qpeldsp startcode"
1980
1981 # decoders / encoders
1982 aac_decoder_select="adts_header imdct15 mdct sinewin"
1983 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1984 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1985 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1986 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1987 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1988 adpcm_g722_decoder_select="g722dsp"
1989 adpcm_g722_encoder_select="g722dsp"
1990 aic_decoder_select="golomb idctdsp"
1991 alac_encoder_select="lpc"
1992 als_decoder_select="bswapdsp"
1993 amrnb_decoder_select="lsp"
1994 amrwb_decoder_select="lsp"
1995 amv_decoder_select="sp5x_decoder"
1996 ape_decoder_select="bswapdsp"
1997 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1998 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1999 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2000 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2001 atrac1_decoder_select="mdct sinewin"
2002 atrac3_decoder_select="mdct"
2003 atrac3p_decoder_select="mdct sinewin"
2004 bink_decoder_select="blockdsp hpeldsp"
2005 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2006 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2007 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2008 clearvideo_decoder_select="idctdsp"
2009 cllc_decoder_select="bswapdsp"
2010 comfortnoise_encoder_select="lpc"
2011 cook_decoder_select="audiodsp mdct sinewin"
2012 cscd_decoder_select="lzo"
2013 cscd_decoder_suggest="zlib"
2014 dca_decoder_select="fmtconvert mdct"
2015 dds_decoder_select="texturedsp"
2016 dnxhd_decoder_select="blockdsp idctdsp"
2017 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2018 dvvideo_decoder_select="dvprofile idctdsp"
2019 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2020 dxa_decoder_deps="zlib"
2021 dxv_decoder_select="lzf texturedsp"
2022 eac3_decoder_select="ac3_decoder"
2023 eac3_encoder_select="ac3_encoder"
2024 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2025 eatgq_decoder_select="aandcttables idctdsp"
2026 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2027 exr_decoder_deps="zlib"
2028 ffv1_decoder_select="rangecoder"
2029 ffv1_encoder_select="rangecoder"
2030 ffvhuff_decoder_select="huffyuv_decoder"
2031 ffvhuff_encoder_select="huffyuv_encoder"
2032 fic_decoder_select="golomb"
2033 flac_decoder_select="flacdsp"
2034 flac_encoder_select="bswapdsp flacdsp lpc"
2035 flashsv_decoder_deps="zlib"
2036 flashsv_encoder_deps="zlib"
2037 flashsv2_decoder_deps="zlib"
2038 flv_decoder_select="h263_decoder"
2039 flv_encoder_select="h263_encoder"
2040 fourxm_decoder_select="blockdsp bswapdsp"
2041 fraps_decoder_select="bswapdsp huffman"
2042 g2m_decoder_deps="zlib"
2043 g2m_decoder_select="blockdsp idctdsp jpegtables"
2044 h261_decoder_select="mpeg_er mpegvideo"
2045 h261_encoder_select="aandcttables mpegvideoenc"
2046 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2047 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2048 h263i_decoder_select="h263_decoder"
2049 h263p_encoder_select="h263_encoder"
2050 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2051 h264_decoder_suggest="error_resilience"
2052 hap_decoder_select="snappy texturedsp"
2053 hap_encoder_deps="libsnappy"
2054 hap_encoder_select="texturedspenc"
2055 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2056 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2057 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2058 iac_decoder_select="imc_decoder"
2059 imc_decoder_select="bswapdsp fft mdct sinewin"
2060 indeo3_decoder_select="hpeldsp"
2061 indeo4_decoder_select="ividsp"
2062 indeo5_decoder_select="ividsp"
2063 interplay_video_decoder_select="hpeldsp"
2064 jpegls_decoder_select="mjpeg_decoder"
2065 jv_decoder_select="blockdsp"
2066 lagarith_decoder_select="huffyuvdsp"
2067 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2068 magicyuv_decoder_select="huffyuvdsp"
2069 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2070 metasound_decoder_select="lsp mdct sinewin"
2071 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2072 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2073 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2074 mjpegb_decoder_select="mjpeg_decoder"
2075 mlp_decoder_select="mlp_parser"
2076 motionpixels_decoder_select="bswapdsp"
2077 mp1_decoder_select="mpegaudio"
2078 mp1float_decoder_select="mpegaudio"
2079 mp2_decoder_select="mpegaudio"
2080 mp2float_decoder_select="mpegaudio"
2081 mp3_decoder_select="mpegaudio"
2082 mp3adu_decoder_select="mpegaudio"
2083 mp3adufloat_decoder_select="mpegaudio"
2084 mp3float_decoder_select="mpegaudio"
2085 mp3on4_decoder_select="mpegaudio"
2086 mp3on4float_decoder_select="mpegaudio"
2087 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2088 mpc8_decoder_select="mpegaudiodsp"
2089 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2090 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2091 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2092 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2093 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2094 mpeg4_encoder_select="h263_encoder"
2095 msa1_decoder_select="mss34dsp"
2096 msmpeg4v1_decoder_select="h263_decoder"
2097 msmpeg4v2_decoder_select="h263_decoder"
2098 msmpeg4v2_encoder_select="h263_encoder"
2099 msmpeg4v3_decoder_select="h263_decoder"
2100 msmpeg4v3_encoder_select="h263_encoder"
2101 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2102 mts2_decoder_select="mss34dsp"
2103 mxpeg_decoder_select="mjpeg_decoder"
2104 nellymoser_decoder_select="mdct sinewin"
2105 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2106 nuv_decoder_select="idctdsp lzo"
2107 on2avc_decoder_select="mdct"
2108 opus_decoder_deps="avresample"
2109 opus_decoder_select="imdct15"
2110 png_decoder_deps="zlib"
2111 png_encoder_deps="zlib"
2112 png_encoder_select="huffyuvencdsp"
2113 prores_decoder_select="idctdsp"
2114 prores_encoder_select="fdctdsp"
2115 qcelp_decoder_select="lsp"
2116 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2117 ra_144_encoder_select="audio_frame_queue lpc"
2118 ralf_decoder_select="golomb"
2119 rscc_decoder_deps="zlib"
2120 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2121 rv10_encoder_select="h263_encoder"
2122 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2123 rv20_encoder_select="h263_encoder"
2124 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2125 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2126 screenpresso_decoder_deps="zlib"
2127 sipr_decoder_select="lsp"
2128 sp5x_decoder_select="mjpeg_decoder"
2129 svq1_decoder_select="hpeldsp"
2130 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2131 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2132 svq3_decoder_suggest="zlib"
2133 tak_decoder_select="audiodsp"
2134 tdsc_decoder_deps="zlib"
2135 tdsc_decoder_select="mjpeg_decoder"
2136 theora_decoder_select="vp3_decoder"
2137 thp_decoder_select="mjpeg_decoder"
2138 tiff_decoder_suggest="zlib"
2139 tiff_encoder_suggest="zlib"
2140 truehd_decoder_select="mlp_decoder"
2141 truemotion2_decoder_select="bswapdsp"
2142 truespeech_decoder_select="bswapdsp"
2143 tscc_decoder_deps="zlib"
2144 txd_decoder_select="texturedsp"
2145 twinvq_decoder_select="mdct lsp sinewin"
2146 utvideo_decoder_select="bswapdsp huffyuvdsp"
2147 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2148 vble_decoder_select="huffyuvdsp"
2149 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2150 vc1image_decoder_select="vc1_decoder"
2151 vorbis_decoder_select="mdct"
2152 vorbis_encoder_select="mdct"
2153 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2154 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2155 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2156 vp6a_decoder_select="vp6_decoder"
2157 vp6f_decoder_select="vp6_decoder"
2158 vp7_decoder_select="h264pred videodsp vp8dsp"
2159 vp8_decoder_select="h264pred videodsp vp8dsp"
2160 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2161 webp_decoder_select="vp8_decoder"
2162 wmapro_decoder_select="mdct sinewin wma_freqs"
2163 wmav1_decoder_select="mdct sinewin wma_freqs"
2164 wmav1_encoder_select="mdct sinewin wma_freqs"
2165 wmav2_decoder_select="mdct sinewin wma_freqs"
2166 wmav2_encoder_select="mdct sinewin wma_freqs"
2167 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2168 wmv1_decoder_select="h263_decoder"
2169 wmv1_encoder_select="h263_encoder"
2170 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2171 wmv2_encoder_select="h263_encoder wmv2dsp"
2172 wmv3_decoder_select="vc1_decoder"
2173 wmv3image_decoder_select="wmv3_decoder"
2174 zerocodec_decoder_deps="zlib"
2175 zlib_decoder_deps="zlib"
2176 zlib_encoder_deps="zlib"
2177 zmbv_decoder_deps="zlib"
2178 zmbv_encoder_deps="zlib"
2179
2180 # hardware accelerators
2181 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2182 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2183 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2184 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2185
2186 h263_vaapi_hwaccel_deps="vaapi"
2187 h263_vaapi_hwaccel_select="h263_decoder"
2188 h264_d3d11va_hwaccel_deps="d3d11va"
2189 h264_d3d11va_hwaccel_select="h264_decoder"
2190 h264_d3d11va2_hwaccel_deps="d3d11va"
2191 h264_d3d11va2_hwaccel_select="h264_decoder"
2192 h264_dxva2_hwaccel_deps="dxva2"
2193 h264_dxva2_hwaccel_select="h264_decoder"
2194 h264_mmal_hwaccel_deps="mmal"
2195 h264_qsv_hwaccel_deps="libmfx"
2196 h264_vaapi_hwaccel_deps="vaapi"
2197 h264_vaapi_hwaccel_select="h264_decoder"
2198 h264_vda_hwaccel_deps="vda"
2199 h264_vda_hwaccel_select="h264_decoder"
2200 h264_vda_old_hwaccel_deps="vda"
2201 h264_vda_old_hwaccel_select="h264_decoder"
2202 h264_vdpau_hwaccel_deps="vdpau"
2203 h264_vdpau_hwaccel_select="h264_decoder"
2204 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2205 hevc_d3d11va_hwaccel_select="hevc_decoder"
2206 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2207 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2208 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2209 hevc_dxva2_hwaccel_select="hevc_decoder"
2210 hevc_qsv_hwaccel_deps="libmfx"
2211 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2212 hevc_vaapi_hwaccel_select="hevc_decoder"
2213 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2214 hevc_vdpau_hwaccel_select="hevc_decoder"
2215 mpeg1_vdpau_hwaccel_deps="vdpau"
2216 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2217 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2218 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2219 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2220 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2221 mpeg2_dxva2_hwaccel_deps="dxva2"
2222 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2223 mpeg2_mmal_hwaccel_deps="mmal"
2224 mpeg2_qsv_hwaccel_deps="libmfx"
2225 mpeg2_vaapi_hwaccel_deps="vaapi"
2226 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2227 mpeg2_vdpau_hwaccel_deps="vdpau"
2228 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2229 mpeg4_vaapi_hwaccel_deps="vaapi"
2230 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2231 mpeg4_vdpau_hwaccel_deps="vdpau"
2232 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2233 vc1_d3d11va_hwaccel_deps="d3d11va"
2234 vc1_d3d11va_hwaccel_select="vc1_decoder"
2235 vc1_d3d11va2_hwaccel_deps="d3d11va"
2236 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2237 vc1_dxva2_hwaccel_deps="dxva2"
2238 vc1_dxva2_hwaccel_select="vc1_decoder"
2239 vc1_mmal_hwaccel_deps="mmal"
2240 vc1_qsv_hwaccel_deps="libmfx"
2241 vc1_vaapi_hwaccel_deps="vaapi"
2242 vc1_vaapi_hwaccel_select="vc1_decoder"
2243 vc1_vdpau_hwaccel_deps="vdpau"
2244 vc1_vdpau_hwaccel_select="vc1_decoder"
2245 vp8_qsv_hwaccel_deps="libmfx"
2246 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2247 vp8_vaapi_hwaccel_select="vp8_decoder"
2248 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2249 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2250 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2251 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2252 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2253
2254 # hardware-accelerated codecs
2255 nvenc_deps_any="libdl LoadLibrary"
2256 omx_deps="libdl pthreads"
2257 omx_rpi_select="omx"
2258 qsv_deps="libmfx"
2259 qsvdec_select="qsv"
2260 qsvenc_select="qsv"
2261 vaapi_encode_deps="vaapi"
2262
2263 hwupload_cuda_filter_deps="cuda"
2264 scale_npp_filter_deps="cuda libnpp"
2265
2266 h264_mmal_decoder_deps="mmal"
2267 h264_nvenc_encoder_deps="nvenc"
2268 h264_omx_encoder_deps="omx"
2269 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2270 h264_qsv_encoder_select="qsvenc"
2271 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2272 h264_vaapi_encoder_select="vaapi_encode golomb"
2273 hevc_nvenc_encoder_deps="nvenc"
2274 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2275 hevc_qsv_encoder_select="hevc_ps qsvenc"
2276 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2277 hevc_vaapi_encoder_select="vaapi_encode golomb"
2278 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2279 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2280 mpeg2_mmal_decoder_deps="mmal"
2281 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2282 mpeg2_qsv_encoder_select="qsvenc"
2283 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2284 mpeg2_vaapi_encoder_select="vaapi_encode"
2285 mpeg4_omx_encoder_deps="omx"
2286 vc1_mmal_decoder_deps="mmal"
2287 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2288 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2289 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2290 vp8_vaapi_encoder_select="vaapi_encode"
2291 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2292 vp9_vaapi_encoder_select="vaapi_encode"
2293
2294 nvenc_h264_encoder_select="h264_nvenc_encoder"
2295 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2296
2297 # parsers
2298 aac_parser_select="adts_header"
2299 h264_parser_select="golomb h264dsp h264parse"
2300 hevc_parser_select="hevc_ps"
2301 mpegaudio_parser_select="mpegaudioheader"
2302 mpegvideo_parser_select="mpegvideo"
2303 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2304 vc1_parser_select="vc1dsp"
2305
2306 # bitstream_filters
2307 aac_adtstoasc_bsf_select="adts_header"
2308 mjpeg2jpeg_bsf_select="jpegtables"
2309
2310 # external libraries
2311 avisynth_deps="LoadLibrary"
2312 avxsynth_deps="libdl"
2313 avisynth_demuxer_deps_any="avisynth avxsynth"
2314 avisynth_demuxer_select="riffdec"
2315 libdcadec_decoder_deps="libdcadec"
2316 libfaac_encoder_deps="libfaac"
2317 libfaac_encoder_select="audio_frame_queue"
2318 libfdk_aac_decoder_deps="libfdk_aac"
2319 libfdk_aac_encoder_deps="libfdk_aac"
2320 libfdk_aac_encoder_select="audio_frame_queue"
2321 libgsm_decoder_deps="libgsm"
2322 libgsm_encoder_deps="libgsm"
2323 libgsm_ms_decoder_deps="libgsm"
2324 libgsm_ms_encoder_deps="libgsm"
2325 libilbc_decoder_deps="libilbc"
2326 libilbc_encoder_deps="libilbc"
2327 libkvazaar_encoder_deps="libkvazaar"
2328 libmp3lame_encoder_deps="libmp3lame"
2329 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2330 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2331 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2332 libopencore_amrnb_encoder_select="audio_frame_queue"
2333 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2334 libopenh264_decoder_deps="libopenh264"
2335 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2336 libopenh264_encoder_deps="libopenh264"
2337 libopenjpeg_decoder_deps="libopenjpeg"
2338 libopenjpeg_encoder_deps="libopenjpeg"
2339 libopus_decoder_deps="libopus"
2340 libopus_encoder_deps="libopus"
2341 libopus_encoder_select="audio_frame_queue"
2342 libschroedinger_decoder_deps="libschroedinger"
2343 libschroedinger_encoder_deps="libschroedinger"
2344 libspeex_decoder_deps="libspeex"
2345 libspeex_encoder_deps="libspeex"
2346 libspeex_encoder_select="audio_frame_queue"
2347 libtheora_encoder_deps="libtheora"
2348 libtwolame_encoder_deps="libtwolame"
2349 libvo_aacenc_encoder_deps="libvo_aacenc"
2350 libvo_aacenc_encoder_select="audio_frame_queue"
2351 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2352 libvorbis_encoder_deps="libvorbis"
2353 libvorbis_encoder_select="audio_frame_queue"
2354 libvpx_vp8_decoder_deps="libvpx"
2355 libvpx_vp8_encoder_deps="libvpx"
2356 libvpx_vp9_decoder_deps="libvpx"
2357 libvpx_vp9_encoder_deps="libvpx"
2358 libwavpack_encoder_deps="libwavpack"
2359 libwavpack_encoder_select="audio_frame_queue"
2360 libwebp_encoder_deps="libwebp"
2361 libx262_encoder_deps="libx262"
2362 libx264_encoder_deps="libx264"
2363 libx265_encoder_deps="libx265"
2364 libxavs_encoder_deps="libxavs"
2365 libxvid_encoder_deps="libxvid mkstemp"
2366
2367 # demuxers / muxers
2368 ac3_demuxer_select="ac3_parser"
2369 asf_demuxer_select="riffdec"
2370 asf_muxer_select="riffenc"
2371 asf_stream_muxer_select="asf_muxer"
2372 avi_demuxer_select="iso_media riffdec"
2373 avi_muxer_select="riffenc"
2374 caf_demuxer_select="iso_media riffdec"
2375 dash_muxer_select="mp4_muxer"
2376 dirac_demuxer_select="dirac_parser"
2377 dv_demuxer_select="dvprofile"
2378 dv_muxer_select="dvprofile"
2379 dxa_demuxer_select="riffdec"
2380 eac3_demuxer_select="ac3_parser"
2381 f4v_muxer_select="mov_muxer"
2382 flac_demuxer_select="flac_parser"
2383 hds_muxer_select="flv_muxer"
2384 hls_muxer_select="mpegts_muxer"
2385 ipod_muxer_select="mov_muxer"
2386 ismv_muxer_select="mov_muxer"
2387 matroska_audio_muxer_select="matroska_muxer"
2388 matroska_demuxer_select="iso_media riffdec"
2389 matroska_demuxer_suggest="bzlib lzo zlib"
2390 matroska_muxer_select="iso_media riffenc"
2391 mmf_muxer_select="riffenc"
2392 mov_demuxer_select="iso_media riffdec"
2393 mov_demuxer_suggest="zlib"
2394 mov_muxer_select="iso_media riffenc rtpenc_chain"
2395 mp3_demuxer_select="mpegaudio_parser"
2396 mp3_muxer_select="mpegaudioheader"
2397 mp4_muxer_select="mov_muxer"
2398 mpegts_demuxer_select="iso_media"
2399 mpegts_muxer_select="adts_muxer latm_muxer"
2400 mpegtsraw_demuxer_select="mpegts_demuxer"
2401 mxf_d10_muxer_select="mxf_muxer"
2402 nut_muxer_select="riffenc"
2403 nuv_demuxer_select="riffdec"
2404 oga_muxer_select="ogg_muxer"
2405 ogg_demuxer_select="dirac_parse"
2406 opus_muxer_select="ogg_muxer"
2407 psp_muxer_select="mov_muxer"
2408 rtp_demuxer_select="sdp_demuxer"
2409 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2410 rtsp_demuxer_select="http_protocol rtpdec"
2411 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2412 sap_demuxer_select="sdp_demuxer"
2413 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2414 sdp_demuxer_select="rtpdec"
2415 smoothstreaming_muxer_select="ismv_muxer"
2416 spdif_demuxer_select="adts_header"
2417 spdif_muxer_select="adts_header"
2418 spx_muxer_select="ogg_muxer"
2419 swf_demuxer_suggest="zlib"
2420 tak_demuxer_select="tak_parser"
2421 tg2_muxer_select="mov_muxer"
2422 tgp_muxer_select="mov_muxer"
2423 w64_demuxer_select="wav_demuxer"
2424 wav_demuxer_select="riffdec"
2425 wav_muxer_select="riffenc"
2426 webm_muxer_select="iso_media riffenc"
2427 wtv_demuxer_select="mpegts_demuxer riffdec"
2428 xmv_demuxer_select="riffdec"
2429 xwma_demuxer_select="riffdec"
2430
2431 # indevs / outdevs
2432 alsa_indev_deps="alsa"
2433 alsa_outdev_deps="alsa"
2434 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2435 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2436 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2437 dv1394_indev_deps="dv1394"
2438 dv1394_indev_select="dv_demuxer"
2439 fbdev_indev_deps="linux_fb_h"
2440 jack_indev_deps="libjack"
2441 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2442 libcdio_indev_deps="libcdio"
2443 libdc1394_indev_deps="libdc1394"
2444 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2445 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2446 pulse_indev_deps="libpulse"
2447 sndio_indev_deps="sndio"
2448 sndio_outdev_deps="sndio"
2449 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2450 vfwcap_indev_deps="vfw32 vfwcap_defines"
2451 xcbgrab_indev_deps="libxcb libxcb_shape"
2452 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2453
2454 # protocols
2455 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2456 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2457 ffrtmpcrypt_protocol_select="tcp_protocol"
2458 ffrtmphttp_protocol_conflict="librtmp_protocol"
2459 ffrtmphttp_protocol_select="http_protocol"
2460 gopher_protocol_select="network"
2461 http_protocol_select="tcp_protocol"
2462 http_protocol_suggest="zlib"
2463 httpproxy_protocol_select="tcp_protocol"
2464 httpproxy_protocol_suggest="zlib"
2465 https_protocol_select="tls_protocol"
2466 https_protocol_suggest="zlib"
2467 icecast_protocol_select="http_protocol"
2468 librtmp_protocol_deps="librtmp"
2469 librtmpe_protocol_deps="librtmp"
2470 librtmps_protocol_deps="librtmp"
2471 librtmpt_protocol_deps="librtmp"
2472 librtmpte_protocol_deps="librtmp"
2473 mmsh_protocol_select="http_protocol"
2474 mmst_protocol_select="network"
2475 rtmp_protocol_conflict="librtmp_protocol"
2476 rtmp_protocol_select="tcp_protocol"
2477 rtmp_protocol_suggest="zlib"
2478 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2479 rtmpe_protocol_suggest="zlib"
2480 rtmps_protocol_conflict="librtmp_protocol"
2481 rtmps_protocol_select="tls_protocol"
2482 rtmps_protocol_suggest="zlib"
2483 rtmpt_protocol_select="ffrtmphttp_protocol"
2484 rtmpt_protocol_suggest="zlib"
2485 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2486 rtmpte_protocol_suggest="zlib"
2487 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2488 rtmpts_protocol_suggest="zlib"
2489 rtp_protocol_select="udp_protocol"
2490 sctp_protocol_deps="struct_sctp_event_subscribe"
2491 sctp_protocol_select="network"
2492 srtp_protocol_select="rtp_protocol srtp"
2493 tcp_protocol_select="network"
2494 tls_protocol_deps_any="gnutls openssl"
2495 tls_protocol_select="tcp_protocol"
2496 udp_protocol_select="network"
2497 unix_protocol_deps="sys_un_h"
2498 unix_protocol_select="network"
2499
2500 # filters
2501 asyncts_filter_deps="avresample"
2502 blackframe_filter_deps="gpl"
2503 boxblur_filter_deps="gpl"
2504 bs2b_filter_deps="libbs2b"
2505 cropdetect_filter_deps="gpl"
2506 deinterlace_qsv_filter_deps="libmfx"
2507 deinterlace_vaapi_filter_deps="vaapi"
2508 delogo_filter_deps="gpl"
2509 drawtext_filter_deps="libfreetype"
2510 drawtext_filter_suggest="libfontconfig"
2511 frei0r_filter_deps="frei0r libdl"
2512 frei0r_src_filter_deps="frei0r libdl"
2513 hdcd_filter_deps="libhdcd"
2514 hqdn3d_filter_deps="gpl"
2515 interlace_filter_deps="gpl"
2516 movie_filter_deps="avcodec avformat"
2517 ocv_filter_deps="libopencv"
2518 resample_filter_deps="avresample"
2519 scale_filter_deps="swscale"
2520 scale_qsv_filter_deps="libmfx"
2521 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2522
2523 # examples
2524 decode_audio_example_deps="avcodec avutil"
2525 decode_video_example_deps="avcodec avutil"
2526 encode_audio_example_deps="avcodec avutil"
2527 encode_video_example_deps="avcodec avutil"
2528 filter_audio_example_deps="avfilter avutil"
2529 metadata_example_deps="avformat avutil"
2530 output_example_deps="avcodec avformat avresample avutil swscale"
2531 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2532 transcode_aac_example_deps="avcodec avformat avresample"
2533
2534 # EXTRALIBS_LIST
2535 cpu_init_extralibs="pthreads_extralibs"
2536 cws2fws_extralibs="zlib_extralibs"
2537
2538 # libraries, in linking order
2539 avcodec_deps="avutil"
2540 avcodec_select="null_bsf"
2541 avdevice_deps="avformat avcodec avutil"
2542 avfilter_deps="avutil"
2543 avformat_deps="avcodec avutil"
2544 avformat_suggest="network"
2545 avresample_deps="avutil"
2546 swscale_deps="avutil"
2547
2548 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2549 avdevice_extralibs="libm_extralibs"
2550 avformat_extralibs="libm_extralibs"
2551 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2552 avresample_extralibs="libm_extralibs"
2553 avutil_extralibs="clock_gettime_extralibs cuda_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2554 swscale_extralibs="libm_extralibs"
2555
2556 # programs
2557 avconv_deps="avcodec avfilter avformat avresample swscale"
2558 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2559 fps_filter null_filter resample_filter scale_filter
2560 trim_filter"
2561 avconv_suggest="psapi shell32"
2562 avplay_deps="avcodec avfilter avformat avresample sdl"
2563 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2564 avplay_suggest="shell32"
2565 avprobe_deps="avcodec avformat"
2566 avprobe_suggest="shell32"
2567
2568 # documentation
2569 pod2man_deps="doc"
2570 texi2html_deps="doc"
2571
2572 # default parameters
2573
2574 logfile="avbuild/config.log"
2575
2576 # installation paths
2577 prefix_default="/usr/local"
2578 bindir_default='${prefix}/bin'
2579 datadir_default='${prefix}/share/avconv'
2580 docdir_default='${prefix}/share/doc/libav'
2581 incdir_default='${prefix}/include'
2582 libdir_default='${prefix}/lib'
2583 mandir_default='${prefix}/share/man'
2584 shlibdir_default="$libdir_default"
2585
2586 # toolchain
2587 ar_default="ar"
2588 cc_default="gcc"
2589 host_cc_default="gcc"
2590 x86asmexe_default="nasm"
2591 ln_s="ln -s -f"
2592 nm_default="nm -g"
2593 pkg_config_default=pkg-config
2594 ranlib="ranlib"
2595 strip="strip"
2596 version_script='--version-script'
2597
2598 # machine
2599 arch_default=$(uname -m)
2600 cpu="generic"
2601 intrinsics="none"
2602
2603 # OS
2604 target_os_default=$(tolower $(uname -s))
2605 host_os=$target_os_default
2606
2607 # configurable options
2608 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2609
2610 enable asm
2611 enable debug
2612 enable doc
2613 enable faan faandct faanidct
2614 enable optimizations
2615 enable safe_bitstream_reader
2616 enable static
2617 enable swscale_alpha
2618 enable valgrind_backtrace
2619
2620 # By default, enable only those hwaccels that have no external dependencies.
2621 enable d3d11va dxva2 vda vdpau
2622
2623 # internal components are enabled by default
2624 enable $EXTRALIBS_LIST
2625
2626 # Avoid external, non-system, libraries getting enabled by dependency resolution
2627 disable $EXTERNAL_LIBRARY_LIST
2628
2629 # build settings
2630 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2631 LIBPREF="lib"
2632 LIBSUF=".a"
2633 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2634 SLIBPREF="lib"
2635 SLIBSUF=".so"
2636 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2637 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2638 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2639 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2640 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2641 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2642 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2643
2644 asflags_filter=echo
2645 cflags_filter=echo
2646 ldflags_filter=echo
2647
2648 AS_C='-c'
2649 AS_O='-o $@'
2650 CC_C='-c'
2651 CC_E='-E -o $@'
2652 CC_O='-o $@'
2653 OBJCC_C='-c'
2654 OBJCC_E='-E -o $@'
2655 OBJCC_O='-o $@'
2656 X86ASM_O='-o $@'
2657 LD_O='-o $@'
2658 LD_LIB='-l%'
2659 LD_PATH='-L'
2660 HOSTCC_C='-c'
2661 HOSTCC_E='-E -o $@'
2662 HOSTCC_O='-o $@'
2663 HOSTLD_O='-o $@'
2664
2665 host_extralibs='-lm'
2666 host_cflags_filter=echo
2667 host_ldflags_filter=echo
2668
2669 target_path='$(CURDIR)'
2670
2671 # since the object filename is not given with the -MM flag, the compiler
2672 # is only able to print the basename, and we must add the path ourselves
2673 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2674 DEPFLAGS='-MM'
2675
2676 mkdir -p avbuild
2677
2678 # find source path
2679 if test -f configure; then
2680 source_path=.
2681 else
2682 source_path=$(cd $(dirname "$0"); pwd)
2683 echo "$source_path" | grep -q '[[:blank:]]' &&
2684 die "Out of tree builds are impossible with whitespace in source path."
2685 test -e "$source_path/config.h" &&
2686 die "Out of tree builds are impossible with config.h in source dir."
2687 fi
2688
2689 for v in "$@"; do
2690 r=${v#*=}
2691 l=${v%"$r"}
2692 r=$(sh_quote "$r")
2693 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2694 done
2695
2696 find_things(){
2697 thing=$1
2698 pattern=$2
2699 file=$source_path/$3
2700 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2701 }
2702
2703 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2704 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2705 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2706 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2707 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2708 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2709 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2710 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2711 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2712
2713 find_things_extern(){
2714 thing=$1
2715 pattern=$2
2716 file=$source_path/$3
2717 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2718 }
2719
2720 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2721 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2722
2723 AVCODEC_COMPONENTS_LIST="
2724 $BSF_LIST
2725 $DECODER_LIST
2726 $ENCODER_LIST
2727 $HWACCEL_LIST
2728 $PARSER_LIST
2729 "
2730
2731 AVDEVICE_COMPONENTS_LIST="
2732 $INDEV_LIST
2733 $OUTDEV_LIST
2734 "
2735
2736 AVFILTER_COMPONENTS_LIST="
2737 $FILTER_LIST
2738 "
2739
2740 AVFORMAT_COMPONENTS_LIST="
2741 $DEMUXER_LIST
2742 $MUXER_LIST
2743 $PROTOCOL_LIST
2744 "
2745
2746 ALL_COMPONENTS="
2747 $AVCODEC_COMPONENTS_LIST
2748 $AVDEVICE_COMPONENTS_LIST
2749 $AVFILTER_COMPONENTS_LIST
2750 $AVFORMAT_COMPONENTS_LIST
2751 "
2752
2753 for n in $COMPONENT_LIST; do
2754 v=$(toupper ${n%s})_LIST
2755 eval enable \$$v
2756 eval ${n}_if_any="\$$v"
2757 done
2758
2759 enable $ARCH_EXT_LIST
2760
2761 die_unknown(){
2762 echo "Unknown option \"$1\"."
2763 echo "See $0 --help for available options."
2764 exit 1
2765 }
2766
2767 print_3_columns() {
2768 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2769 }
2770
2771 show_list() {
2772 suffix=_$1
2773 shift
2774 echo $* | sed s/$suffix//g | print_3_columns
2775 exit 0
2776 }
2777
2778 rand_list(){
2779 IFS=', '
2780 set -- $*
2781 unset IFS
2782 for thing; do
2783 comp=${thing%:*}
2784 prob=${thing#$comp}
2785 prob=${prob#:}
2786 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2787 echo "prob ${prob:-0.5}"
2788 printf '%s\n' $comp
2789 done
2790 }
2791
2792 do_random(){
2793 action=$1
2794 shift
2795 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2796 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2797 }
2798
2799 for opt do
2800 optval="${opt#*=}"
2801 case "$opt" in
2802 --extra-ldflags=*)
2803 add_ldflags $optval
2804 ;;
2805 --extra-ldexeflags=*)
2806 add_ldexeflags $optval
2807 ;;
2808 --extra-libs=*)
2809 add_extralibs $optval
2810 ;;
2811 --disable-devices)
2812 disable $INDEV_LIST $OUTDEV_LIST
2813 ;;
2814 --enable-debug=*)
2815 debuglevel="$optval"
2816 ;;
2817 --disable-programs)
2818 disable $PROGRAM_LIST
2819 ;;
2820 --disable-everything)
2821 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2822 ;;
2823 --disable-all)
2824 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2825 disable $LIBRARY_LIST $PROGRAM_LIST doc
2826 ;;
2827 --enable-random|--disable-random)
2828 action=${opt%%-random}
2829 do_random ${action#--} $COMPONENT_LIST
2830 ;;
2831 --enable-random=*|--disable-random=*)
2832 action=${opt%%-random=*}
2833 do_random ${action#--} $optval
2834 ;;
2835 --enable-*=*|--disable-*=*)
2836 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2837 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2838 eval list=\$$(toupper $thing)_LIST
2839 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2840 $action $(filter "$name" $list)
2841 ;;
2842 --enable-avserver|--disable-avserver*)
2843 warn "avserver has been removed, the ${opt} option is only"\
2844 "provided for compatibility and will be removed in the future"
2845 ;;
2846 --enable-yasm|--disable-yasm)
2847 warn "The ${opt} option is only provided for compatibility and will be\n"\
2848 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2849 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2850 ;;
2851 --enable-?*|--disable-?*)
2852 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2853 if is_in $option $COMPONENT_LIST; then
2854 test $action = disable && action=unset
2855 eval $action \$$(toupper ${option%s})_LIST
2856 elif is_in $option $CMDLINE_SELECT; then
2857 $action $option
2858 else
2859 die_unknown $opt
2860 fi
2861 ;;
2862 --list-*)
2863 NAME="${opt#--list-}"
2864 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2865 NAME=${NAME%s}
2866 eval show_list $NAME \$$(toupper $NAME)_LIST
2867 ;;
2868 --help|-h) show_help
2869 ;;
2870 --quiet|-q) quiet=yes
2871 ;;
2872 *)
2873 optname="${opt%%=*}"
2874 optname="${optname#--}"
2875 optname=$(echo "$optname" | sed 's/-/_/g')
2876 if is_in $optname $CMDLINE_SET; then
2877 eval $optname='$optval'
2878 elif is_in $optname $CMDLINE_APPEND; then
2879 append $optname "$optval"
2880 else
2881 die_unknown $opt
2882 fi
2883 ;;
2884 esac
2885 done
2886
2887 for e in $env; do
2888 eval "export $e"
2889 done
2890
2891 disabled logging && logfile=/dev/null
2892
2893 # Die early if licensing-related configure options are incompatible.
2894 die_license_disabled() {
2895 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2896 }
2897
2898 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2899 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2900 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2901
2902 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2903
2904 enabled_all gnutls openssl &&
2905 die "GnuTLS and OpenSSL must not be enabled at the same time."
2906
2907 # Disable all the library-specific components if the library itself
2908 # is disabled, see AVCODEC_LIST and following _LIST variables.
2909
2910 disable_components(){
2911 disabled ${1} && disable $(
2912 eval components="\$$(toupper ${1})_COMPONENTS"
2913 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2914 )
2915 }
2916
2917 map 'disable_components $v' $LIBRARY_LIST
2918
2919 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2920 set >> $logfile
2921
2922 case "$toolchain" in
2923 *-asan)
2924 cc_default="${toolchain%-asan}"
2925 add_cflags -fsanitize=address
2926 add_ldflags -fsanitize=address
2927 ;;
2928 *-msan)
2929 cc_default="${toolchain%-msan}"
2930 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2931 add_ldflags -fsanitize=memory
2932 ;;
2933 *-tsan)
2934 cc_default="${toolchain%-tsan}"
2935 add_cflags -fsanitize=thread -fPIE
2936 add_ldflags -fsanitize=thread -pie
2937 case "$toolchain" in
2938 gcc-tsan)
2939 add_cflags -fPIC
2940 add_ldflags -fPIC
2941 ;;
2942 esac
2943 ;;
2944 *-usan)
2945 cc_default="${toolchain%-usan}"
2946 add_cflags -fsanitize=undefined
2947 add_ldflags -fsanitize=undefined
2948 case "$toolchain" in
2949 clang-usan)
2950 add_cflags -O1
2951 ;;
2952 esac
2953 ;;
2954 valgrind-*)
2955 target_exec_default="valgrind"
2956 case "$toolchain" in
2957 valgrind-massif)
2958 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2959 ;;
2960 valgrind-memcheck)
2961 target_exec_args="--track-origins=yes --leak-check=full"
2962 ;;
2963 esac
2964 ;;
2965 msvc)
2966 # Check whether the current MSVC version needs the C99 converter.
2967 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2968 # support enough of C99 to build libav. Default to the new
2969 # behaviour if the regexp was unable to match anything, since this
2970 # successfully parses the version number of existing supported
2971 # versions that require the converter (MSVC 2010 and 2012).
2972 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2973 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2974 cc_default="cl"
2975 else
2976 cc_default="c99wrap cl"
2977 fi
2978 ld_default="$source_path/compat/windows/mslink"
2979 nm_default="dumpbin -symbols"
2980 ar_default="lib"
2981 case "$arch" in
2982 arm*)
2983 as_default="armasm"
2984 ;;
2985 esac
2986 target_os_default="win32"
2987 # Use a relative path for TMPDIR. This makes sure all the
2988 # ffconf temp files are written with a relative path, avoiding
2989 # issues with msys/win32 path conversion for MSVC parameters
2990 # such as -Fo<file> or -out:<file>.
2991 TMPDIR=.
2992 ;;
2993 icl)
2994 cc_default="icl"
2995 ld_default="xilink"
2996 nm_default="dumpbin -symbols"
2997 ar_default="xilib"
2998 target_os_default="win32"
2999 TMPDIR=.
3000 ;;
3001 gcov)
3002 add_cflags -fprofile-arcs -ftest-coverage
3003 add_ldflags -fprofile-arcs -ftest-coverage
3004 ;;
3005 llvm-cov)
3006 add_cflags -fprofile-arcs -ftest-coverage
3007 add_ldflags --coverage
3008 ;;
3009 hardened)
3010 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3011 add_cflags -fno-strict-overflow -fstack-protector-all
3012 add_ldflags -Wl,-z,relro -Wl,-z,now
3013 ;;
3014 ?*)
3015 die "Unknown toolchain $toolchain"
3016 ;;
3017 esac
3018
3019 test -n "$cross_prefix" && enable cross_compile
3020
3021 if enabled cross_compile; then
3022 test -n "$arch" && test -n "$target_os" ||
3023 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3024 fi
3025
3026 ar_default="${cross_prefix}${ar_default}"
3027 cc_default="${cross_prefix}${cc_default}"
3028 objcc_default="${cross_prefix}${objcc_default}"
3029 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3030 nm_default="${cross_prefix}${nm_default}"
3031 pkg_config_default="${cross_prefix}${pkg_config_default}"
3032 ranlib="${cross_prefix}${ranlib}"
3033 strip="${cross_prefix}${strip}"
3034
3035 sysinclude_default="${sysroot}/usr/include"
3036
3037 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3038 enabled cross_compile || host_cc_default=$cc
3039 set_default host_cc
3040
3041 if ! $pkg_config --version >/dev/null 2>&1; then
3042 warn "$pkg_config not found, library detection may fail."
3043 pkg_config=false
3044 fi
3045
3046 exesuf() {
3047 case $1 in
3048 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3049 esac
3050 }
3051
3052 EXESUF=$(exesuf $target_os)
3053 HOSTEXESUF=$(exesuf $host_os)
3054
3055 # set temporary file name
3056 : ${TMPDIR:=$TEMPDIR}
3057 : ${TMPDIR:=$TMP}
3058 : ${TMPDIR:=/tmp}
3059
3060 if ! check_cmd mktemp -u XXXXXX; then
3061 # simple replacement for missing mktemp
3062 # NOT SAFE FOR GENERAL USE
3063 mktemp(){
3064 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3065 echo "$tmpname"
3066 mkdir "$tmpname"
3067 }
3068 fi
3069
3070 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3071 die "Unable to create temporary directory in $TMPDIR."
3072
3073 tmpfile(){
3074 tmp="${AVTMPDIR}/test"$2
3075 (set -C; exec > $tmp) 2> /dev/null ||
3076 die "Unable to create temporary file in $AVTMPDIR."
3077 eval $1=$tmp
3078 }
3079
3080 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3081 trap 'exit 2' INT
3082
3083 tmpfile TMPASM .asm
3084 tmpfile TMPC .c
3085 tmpfile TMPE $EXESUF
3086 tmpfile TMPH .h
3087 tmpfile TMPO .o
3088 tmpfile TMPS .S
3089 tmpfile TMPSH .sh
3090 tmpfile TMPV .ver
3091
3092 unset -f mktemp
3093
3094 chmod +x $TMPE
3095
3096 # make sure we can execute files in $TMPDIR
3097 cat > $TMPSH 2>> $logfile <<EOF
3098 #! /bin/sh
3099 EOF
3100 chmod +x $TMPSH >> $logfile 2>&1
3101 if ! $TMPSH >> $logfile 2>&1; then
3102 cat <<EOF
3103 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3104 variable to another directory and make sure that it is not mounted noexec.
3105 EOF
3106 die "Sanity test failed."
3107 fi
3108
3109 armasm_flags(){
3110 for flag; do
3111 case $flag in
3112 # Filter out MSVC cl.exe options from cflags that shouldn't
3113 # be passed to gas-preprocessor
3114 -M[TD]*) ;;
3115 *) echo $flag ;;
3116 esac
3117 done
3118 }
3119
3120 ccc_flags(){
3121 for flag; do
3122 case $flag in
3123 -std=c99) echo -c99 ;;
3124 -mcpu=*) echo -arch ${flag#*=} ;;
3125 -mieee) echo -ieee ;;
3126 -O*|-fast) echo $flag ;;
3127 -fno-math-errno) echo -assume nomath_errno ;;
3128 -g) echo -g3 ;;
3129 -Wall) echo -msg_enable level2 ;;
3130 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3131 -Wl,*) echo $flag ;;
3132 -f*|-W*) ;;
3133 *) echo $flag ;;
3134 esac
3135 done
3136 }
3137
3138 cparser_flags(){
3139 for flag; do
3140 case $flag in
3141 -Wno-switch) echo -Wno-switch-enum ;;
3142 -Wno-format-zero-length) ;;
3143 -Wdisabled-optimization) ;;
3144 -Wno-pointer-sign) echo -Wno-other ;;
3145 *) echo $flag ;;
3146 esac
3147 done
3148 }
3149
3150 msvc_common_flags(){
3151 for flag; do
3152 case $flag in
3153 # In addition to specifying certain flags under the compiler
3154 # specific filters, they must be specified here as well or else the
3155 # generic catch all at the bottom will print the original flag.
3156 -Wall) ;;
3157 -Wextra) ;;
3158 -std=c99) ;;
3159 # Common flags
3160 -fomit-frame-pointer) ;;
3161 -g) echo -Z7 ;;
3162 -fno-math-errno) ;;
3163 -fno-common) ;;
3164 -fno-signed-zeros) ;;
3165 -fPIC) ;;
3166 -mthumb) ;;
3167 -march=*) ;;
3168 -lz) echo zlib.lib ;;
3169 -lx264) echo libx264.lib ;;
3170 -l*) echo ${flag#-l}.lib ;;
3171 -L*) echo -libpath:${flag#-L} ;;
3172 *) echo $flag ;;
3173 esac
3174 done
3175 }
3176
3177 msvc_flags(){
3178 msvc_common_flags "$@"
3179 for flag; do
3180 case $flag in
3181 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3182 -wd4554 ;;
3183 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3184 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3185 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3186 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3187 esac
3188 done
3189 }
3190
3191 icl_flags(){
3192 msvc_common_flags "$@"
3193 for flag; do
3194 case $flag in
3195 # Despite what Intel's documentation says -Wall, which is supported
3196 # on Windows, does enable remarks so disable them here.
3197 -Wall) echo $flag -Qdiag-disable:remark ;;
3198 -std=c99) echo -Qstd=c99 ;;
3199 esac
3200 done
3201 }
3202
3203 pgi_flags(){
3204 for flag; do
3205 case $flag in
3206 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3207 -fomit-frame-pointer) echo -Mnoframe ;;
3208 -g) echo -gopt ;;
3209 *) echo $flag ;;
3210 esac
3211 done
3212 }
3213
3214 suncc_flags(){
3215 for flag; do
3216 case $flag in
3217 -march=*|-mcpu=*)
3218 case "${flag#*=}" in
3219 native) echo -xtarget=native ;;
3220 v9|niagara) echo -xarch=sparc ;;
3221 ultrasparc) echo -xarch=sparcvis ;;
3222 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3223 i586|pentium) echo -xchip=pentium ;;
3224 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3225 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3226 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3227 pentium4*) echo -xtarget=pentium4 ;;
3228 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3229 *-sse3) echo -xarch=sse3 ;;
3230 core2) echo -xarch=ssse3 -xchip=core2 ;;
3231 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3232 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3233 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3234 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3235 k8|opteron|athlon64|athlon-fx)
3236 echo -xarch=sse2a ;;
3237 athlon*) echo -xarch=pentium_proa ;;
3238 esac
3239 ;;
3240 -std=c99) echo -xc99 ;;
3241 -fomit-frame-pointer) echo -xregs=frameptr ;;
3242 -fPIC) echo -KPIC -xcode=pic32 ;;
3243 -W*,*) echo $flag ;;
3244 -f*-*|-W*|-mimpure-text) ;;
3245 -shared) echo -G ;;
3246 *) echo $flag ;;
3247 esac
3248 done
3249 }
3250
3251 tms470_flags(){
3252 for flag; do
3253 case $flag in
3254 -march=*|-mcpu=*)
3255 case "${flag#*=}" in
3256 armv7-a|cortex-a*) echo -mv=7a8 ;;
3257 armv7-r|cortex-r*) echo -mv=7r4 ;;
3258 armv7-m|cortex-m*) echo -mv=7m3 ;;
3259 armv6*|arm11*) echo -mv=6 ;;
3260 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3261 echo -mv=5e ;;
3262 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3263 esac
3264 ;;
3265 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3266 -mfpu=vfp) echo --float_support=vfpv2 ;;
3267 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3268 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3269 -msoft-float) echo --float_support=vfplib ;;
3270 -O[0-3]|-mf=*) echo $flag ;;
3271 -g) echo -g -mn ;;
3272 -pds=*) echo $flag ;;
3273 -D*|-I*) echo $flag ;;
3274 --gcc|--abi=*) echo $flag ;;
3275 -me) echo $flag ;;
3276 esac
3277 done
3278 }
3279
3280 probe_cc(){
3281 pfx=$1
3282 _cc=$2
3283
3284 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3285 unset _ld_o _ldflags _ld_lib _ld_path
3286 unset _depflags _DEPCMD _DEPFLAGS
3287 _flags_filter=echo
3288
3289 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3290 _type=llvm_gcc
3291 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3292 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3293 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3294 _cflags_speed='-O3'
3295 _cflags_size='-Os'
3296 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3297 _type=gcc
3298 gcc_version=$($_cc --version | head -n1)
3299 gcc_basever=$($_cc -dumpversion)
3300 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3301 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3302 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3303 if ! $_cc -dumpversion | grep -q '^2\.'; then
3304 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3305 fi
3306 _cflags_speed='-O3'
3307 _cflags_size='-Os'
3308 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3309 _type=icc
3310 _ident=$($_cc --version | head -n1)
3311 _depflags='-MMD'
3312 _cflags_speed='-O3'
3313 _cflags_size='-Os'
3314 _cflags_noopt='-O1'
3315 elif $_cc -v 2>&1 | grep -q xlc; then
3316 _type=xlc
3317 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3318 _cflags_speed='-O5'
3319 _cflags_size='-O5 -qcompact'
3320 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3321 _type=ccc
3322 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3323 _DEPFLAGS='-M'
3324 _cflags_speed='-fast'
3325 _cflags_size='-O1'
3326 _flags_filter=ccc_flags
3327 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3328 test -d "$sysroot" || die "No valid sysroot specified."
3329 _type=armcc
3330 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3331 armcc_conf="$PWD/armcc.conf"
3332 $_cc --arm_linux_configure \
3333 --arm_linux_config_file="$armcc_conf" \
3334 --configure_sysroot="$sysroot" \
3335 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3336 die "Error creating armcc configuration file."
3337 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3338 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3339 as_default="${cross_prefix}gcc"
3340 _depflags='-MMD'
3341 _cflags_speed='-O3'
3342 _cflags_size='-Os'
3343 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3344 _type=tms470
3345 _ident=$($_cc -version | head -n1 | tr -s ' ')
3346 _flags='--gcc --abi=eabi -me'
3347 _cc_e='-ppl -fe=$@'
3348 _cc_o='-fe=$@'
3349 _depflags='-ppa -ppd=$(@:.o=.d)'
3350 _cflags_speed='-O3 -mf=5'
3351 _cflags_size='-O3 -mf=2'
3352 _flags_filter=tms470_flags
3353 elif $_cc -v 2>&1 | grep -q clang; then
3354 _type=clang
3355 _ident=$($_cc --version 2>/dev/null | head -n1)
3356 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3357 _cflags_speed='-O3'
3358 _cflags_size='-Os'
3359 elif $_cc -V 2>&1 | grep -q Sun; then
3360 _type=suncc
3361 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3362 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3363 _DEPFLAGS='-xM1 -xc99'
3364 _ldflags='-std=c99'
3365 _cflags_speed='-O5'
3366 _cflags_size='-O5 -xspace'
3367 _flags_filter=suncc_flags
3368 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3369 _type=pathscale
3370 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3371 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3372 _cflags_speed='-O2'
3373 _cflags_size='-Os'
3374 _flags_filter='filter_out -Wdisabled-optimization'
3375 elif $_cc -v 2>&1 | grep -q Open64; then
3376 _type=open64
3377 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3378 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3379 _cflags_speed='-O2'
3380 _cflags_size='-Os'
3381 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3382 elif $_cc -V 2>&1 | grep -q Portland; then
3383 _type=pgi
3384 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3385 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3386 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3387 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3388 _cflags_noopt="-O1"
3389 _flags_filter=pgi_flags
3390 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3391 _type=armasm
3392 _ident=$($_cc | head -n1)
3393 # 4509: "This form of conditional instruction is deprecated"
3394 _flags="-nologo -ignore 4509"
3395 _flags_filter=armasm_flags
3396 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3397 _type=msvc
3398 _ident=$($_cc 2>&1 | head -n1)
3399 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3400 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3401 _cflags_speed="-O2"
3402 _cflags_size="-O1"
3403 _cflags_noopt="-O1"
3404 if $_cc -nologo- 2>&1 | grep -q Linker; then
3405 _ld_o='-out:$@'
3406 else
3407 _ld_o='-Fe$@'
3408 fi
3409 _cc_o='-Fo$@'
3410 _cc_e='-P -Fi$@'
3411 _flags_filter=msvc_flags
3412 _ld_lib='lib%.a'
3413 _ld_path='-libpath:'
3414 _flags='-nologo'
3415 elif $_cc 2>&1 | grep -q Intel; then
3416 _type=icl
3417 _ident=$($_cc 2>&1 | head -n1)
3418 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3419 # Not only is O3 broken on 13.x+ but it is slower on all previous
3420 # versions (tested) as well.
3421 _cflags_speed="-O2"
3422 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3423 if $_cc 2>&1 | grep -q Linker; then
3424 _ld_o='-out:$@'
3425 else
3426 _ld_o='-Fe$@'
3427 fi
3428 _cc_o='-Fo$@'
3429 _cc_e='-P'
3430 _flags_filter=icl_flags
3431 _ld_lib='lib%.a'
3432 _ld_path='-libpath:'
3433 # -Qdiag-error to make icl error when seeing certain unknown arguments
3434 _flags='-nologo -Qdiag-error:4044,10157'
3435 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3436 # with MSVC which enables it by default.
3437 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3438 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3439 # lld can emulate multiple different linkers; in ms link.exe mode,
3440 # the -? parameter gives the help output which contains an identifyable
3441 # string, while it gives an error in other modes.
3442 _type=lld-link
3443 # The link.exe mode doesn't have a switch for getting the version,
3444 # but we can force it back to gnu mode and get the version from there.
3445 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3446 _ld_o='-out:$@'
3447 _flags_filter=msvc_flags
3448 _ld_lib='lib%.a'
3449 _ld_path='-libpath:'
3450 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3451 _type=cparser
3452 _ident=$($_cc --version | head -n1)
3453 _depflags='-MMD'
3454 _cflags_speed='-O4'
3455 _cflags_size='-O2'
3456 _flags_filter=cparser_flags
3457 fi
3458
3459 eval ${pfx}_type=\$_type
3460 eval ${pfx}_ident=\$_ident
3461 }
3462
3463 set_ccvars(){
3464 eval ${1}_C=\${_cc_c-\${${1}_C}}
3465 eval ${1}_E=\${_cc_e-\${${1}_E}}
3466 eval ${1}_O=\${_cc_o-\${${1}_O}}
3467
3468 if [ -n "$_depflags" ]; then
3469 eval ${1}_DEPFLAGS=\$_depflags
3470 else
3471 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3472 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3473 eval DEP${1}FLAGS=\$_flags
3474 fi
3475 }
3476
3477 probe_cc cc "$cc"
3478 cflags_filter=$_flags_filter
3479 cflags_speed=$_cflags_speed
3480 cflags_size=$_cflags_size
3481 cflags_noopt=$_cflags_noopt
3482 add_cflags $_flags $_cflags
3483 cc_ldflags=$_ldflags
3484 set_ccvars CC
3485
3486 probe_cc hostcc "$host_cc"
3487 host_cflags_filter=$_flags_filter
3488 host_cflags_speed=$_cflags_speed
3489 add_host_cflags $_flags $_cflags
3490 set_ccvars HOSTCC
3491
3492 test -n "$cc_type" && enable $cc_type ||
3493 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3494
3495 : ${as_default:=$cc}
3496 : ${objcc_default:=$cc}
3497 : ${dep_cc_default:=$cc}
3498 : ${ld_default:=$cc}
3499 : ${host_ld_default:=$host_cc}
3500 set_default ar as objcc dep_cc ld host_ld
3501
3502 probe_cc as "$as"
3503 asflags_filter=$_flags_filter
3504 add_asflags $_flags $_cflags
3505 set_ccvars AS
3506
3507 probe_cc objcc "$objcc"
3508 objcflags_filter=$_flags_filter
3509 add_objcflags $_flags $_cflags
3510 set_ccvars OBJC
3511
3512 probe_cc ld "$ld"
3513 ldflags_filter=$_flags_filter
3514 add_ldflags $_flags $_ldflags
3515 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3516 LD_O=${_ld_o-$LD_O}
3517 LD_LIB=${_ld_lib-$LD_LIB}
3518 LD_PATH=${_ld_path-$LD_PATH}
3519
3520 probe_cc hostld "$host_ld"
3521 host_ldflags_filter=$_flags_filter
3522 add_host_ldflags $_flags $_ldflags
3523 HOSTLD_O=${_ld_o-$HOSTLD_O}
3524
3525 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3526 probe_cc depcc "$dep_cc"
3527 CCDEP=${_DEPCMD:-$DEPCMD}
3528 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3529 DEPCCFLAGS=$_flags
3530 fi
3531
3532 if $ar 2>&1 | grep -q Microsoft; then
3533 arflags="-nologo"
3534 ar_o='-out:$@'
3535 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3536 arflags="rq"
3537 ar_o='$@'
3538 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3539 arflags='-Xany -r -c'
3540 ar_o='$@'
3541 else
3542 arflags="rc"
3543 ar_o='$@'
3544 fi
3545
3546 add_cflags $extra_cflags
3547 add_objcflags $extra_objcflags
3548 add_asflags $extra_cflags
3549
3550 if test -n "$sysroot"; then
3551 case "$cc_type" in
3552 gcc|llvm_gcc|clang)
3553 add_cppflags --sysroot="$sysroot"
3554 add_ldflags --sysroot="$sysroot"
3555 ;;
3556 tms470)
3557 add_cppflags -I"$sysinclude"
3558 add_ldflags --sysroot="$sysroot"
3559 ;;
3560 esac
3561 fi
3562
3563 if test "$cpu" = host; then
3564 enabled cross_compile &&
3565 die "--cpu=host makes no sense when cross-compiling."
3566
3567 case "$cc_type" in
3568 gcc|llvm_gcc)
3569 check_native(){
3570 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3571 sed -n "/cc1.*$1=/{
3572 s/.*$1=\\([^ ]*\\).*/\\1/
3573 p
3574 q
3575 }" $TMPE
3576 }
3577 cpu=$(check_native -march || check_native -mcpu)
3578 ;;
3579 esac
3580
3581 test "${cpu:-host}" = host &&
3582 die "--cpu=host not supported with compiler $cc"
3583 fi
3584
3585 # Deal with common $arch aliases
3586 case "$arch" in
3587 aarch64|arm64)
3588 arch="aarch64"
3589 ;;
3590 arm*)
3591 arch="arm"
3592 ;;
3593 mips*|IP*)
3594 case "$arch" in
3595 *el)
3596 add_cppflags -EL
3597 add_ldflags -EL
3598 ;;
3599 *eb)
3600 add_cppflags -EB
3601 add_ldflags -EB
3602 ;;
3603 esac
3604 arch="mips"
3605 ;;
3606 parisc*|hppa*)
3607 arch="parisc"
3608 ;;
3609 "Power Macintosh"|ppc*|powerpc*)
3610 arch="ppc"
3611 ;;
3612 s390|s390x)
3613 arch="s390"
3614 ;;
3615 sh4|sh)
3616 arch="sh4"
3617 ;;
3618 sun4u|sparc*)
3619 arch="sparc"
3620 ;;
3621 tilegx|tile-gx)
3622 arch="tilegx"
3623 ;;
3624 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3625 arch="x86"
3626 ;;
3627 esac
3628
3629 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3630 enable $arch
3631
3632 # Add processor-specific flags
3633 if enabled aarch64; then
3634
3635 case $cpu in
3636 armv*)
3637 cpuflags="-march=$cpu"
3638 ;;
3639 *)
3640 cpuflags="-mcpu=$cpu"
3641 ;;
3642 esac
3643
3644 elif enabled alpha; then
3645
3646 cpuflags="-mcpu=$cpu"
3647
3648 elif enabled arm; then
3649
3650 check_arm_arch() {
3651 check_cpp_condition stddef.h \
3652 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3653 $cpuflags
3654 }
3655
3656 probe_arm_arch() {
3657 if check_arm_arch 4; then echo armv4
3658 elif check_arm_arch 4T; then echo armv4t
3659 elif check_arm_arch 5; then echo armv5
3660 elif check_arm_arch 5E; then echo armv5e
3661 elif check_arm_arch 5T; then echo armv5t
3662 elif check_arm_arch 5TE; then echo armv5te
3663 elif check_arm_arch 5TEJ; then echo armv5te
3664 elif check_arm_arch 6; then echo armv6
3665 elif check_arm_arch 6J; then echo armv6j
3666 elif check_arm_arch 6K; then echo armv6k
3667 elif check_arm_arch 6Z; then echo armv6z
3668 elif check_arm_arch 6ZK; then echo armv6zk
3669 elif check_arm_arch 6T2; then echo armv6t2
3670 elif check_arm_arch 7; then echo armv7
3671 elif check_arm_arch 7A 7_A; then echo armv7-a
3672 elif check_arm_arch 7S; then echo armv7-a
3673 elif check_arm_arch 7R 7_R; then echo armv7-r
3674 elif check_arm_arch 7M 7_M; then echo armv7-m
3675 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3676 elif check_arm_arch 8A 8_A; then echo armv8-a
3677 fi
3678 }
3679
3680 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3681
3682 case $cpu in
3683 armv*)
3684 cpuflags="-march=$cpu"
3685 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3686 ;;
3687 *)
3688 cpuflags="-mcpu=$cpu"
3689 case $cpu in
3690 cortex-a*) subarch=armv7a ;;
3691 cortex-r*) subarch=armv7r ;;
3692 cortex-m*) enable thumb; subarch=armv7m ;;
3693 arm11*) subarch=armv6 ;;
3694 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3695 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3696 *) subarch=$(probe_arm_arch) ;;
3697 esac
3698 ;;
3699 esac
3700
3701 case "$subarch" in
3702 armv5t*) enable fast_clz ;;
3703 armv[6-8]*) enable fast_clz fast_unaligned ;;
3704 esac
3705
3706 elif enabled avr32; then
3707
3708 case $cpu in
3709 ap7[02]0[0-2])
3710 subarch="avr32_ap"
3711 cpuflags="-mpart=$cpu"
3712 ;;
3713 ap)
3714 subarch="avr32_ap"
3715 cpuflags="-march=$cpu"
3716 ;;
3717 uc3[ab]*)
3718 subarch="avr32_uc"
3719 cpuflags="-mcpu=$cpu"
3720 ;;
3721 uc)
3722 subarch="avr32_uc"
3723 cpuflags="-march=$cpu"
3724 ;;
3725 esac
3726
3727 elif enabled bfin; then
3728
3729 cpuflags="-mcpu=$cpu"
3730
3731 elif enabled mips; then
3732
3733 cpuflags="-march=$cpu"
3734
3735 elif enabled ppc; then
3736
3737 disable ldbrx
3738
3739 case $(tolower $cpu) in
3740 601|ppc601|powerpc601)
3741 cpuflags="-mcpu=601"
3742 disable altivec
3743 ;;
3744 603*|ppc603*|powerpc603*)
3745 cpuflags="-mcpu=603"
3746 disable altivec
3747 ;;
3748 604*|ppc604*|powerpc604*)
3749 cpuflags="-mcpu=604"
3750 disable altivec
3751 ;;
3752 g3|75*|ppc75*|powerpc75*)
3753 cpuflags="-mcpu=750"
3754 disable altivec
3755 ;;
3756 g4|745*|ppc745*|powerpc745*)
3757 cpuflags="-mcpu=7450"
3758 disable vsx
3759 ;;
3760 74*|ppc74*|powerpc74*)
3761 cpuflags="-mcpu=7400"
3762 disable vsx
3763 ;;
3764 g5|970|ppc970|powerpc970)
3765 cpuflags="-mcpu=970"
3766 disable vsx
3767 ;;
3768 power[3-6]*)
3769 cpuflags="-mcpu=$cpu"
3770 disable vsx
3771 ;;
3772 power[7-8]*)
3773 cpuflags="-mcpu=$cpu"
3774 enable ldbrx
3775 ;;
3776 cell)
3777 cpuflags="-mcpu=cell"
3778 enable ldbrx
3779 disable vsx
3780 ;;
3781 e500mc)
3782 cpuflags="-mcpu=e500mc"
3783 disable altivec
3784 ;;
3785 e500v2)
3786 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3787 disable altivec
3788 disable dcbzl
3789 ;;
3790 e500)
3791 cpuflags="-mcpu=8540 -mhard-float"
3792 disable altivec
3793 disable dcbzl
3794 ;;
3795 esac
3796
3797 elif enabled sparc; then
3798
3799 case $cpu in
3800 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3801 cpuflags="-mcpu=$cpu"
3802 ;;
3803 ultrasparc*|niagara[234])
3804 cpuflags="-mcpu=$cpu"
3805 ;;
3806 esac
3807
3808 elif enabled x86; then
3809
3810 case $cpu in
3811 i[345]86|pentium)
3812 cpuflags="-march=$cpu"
3813 disable i686
3814 disable mmx
3815 ;;
3816 # targets that do NOT support nopl and conditional mov (cmov)
3817 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3818 cpuflags="-march=$cpu"
3819 disable i686
3820 ;;
3821 # targets that do support nopl and conditional mov (cmov)
3822 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3823 cpuflags="-march=$cpu"
3824 enable i686
3825 enable fast_cmov
3826 ;;
3827 # targets that do support conditional mov but on which it's slow
3828 pentium4|pentium4m|prescott|nocona)
3829 cpuflags="-march=$cpu"
3830 enable i686
3831 disable fast_cmov
3832 ;;
3833 esac
3834
3835 fi
3836
3837 if [ "$cpu" != generic ]; then
3838 add_cflags $cpuflags
3839 add_asflags $cpuflags
3840 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3841 fi
3842
3843 # compiler sanity check
3844 check_exec <<EOF
3845 int main(void){ return 0; }
3846 EOF
3847 if test "$?" != 0; then
3848 echo "$cc is unable to create an executable file."
3849 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3850 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3851 echo "Only do this if you know what cross compiling means."
3852 fi
3853 die "C compiler test failed."
3854 fi
3855
3856 add_cppflags -D_ISOC99_SOURCE
3857
3858 # some compilers silently accept -std=c11, so we also need to check that the
3859 # version macro is defined properly
3860 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3861 add_cflags -std=c11 ||
3862 check_cflags -std=c99
3863
3864 check_cppflags -D_FILE_OFFSET_BITS=64
3865 check_cppflags -D_LARGEFILE_SOURCE
3866
3867 add_host_cppflags -D_ISOC99_SOURCE
3868 check_host_cflags -std=c99
3869 check_host_cflags -Wall
3870 check_host_cflags $host_cflags_speed
3871
3872 check_64bit(){
3873 arch32=$1
3874 arch64=$2
3875 expr=$3
3876 check_code cc "" "int test[2*($expr) - 1]" &&
3877 subarch=$arch64 || subarch=$arch32
3878 }
3879
3880 case "$arch" in
3881 aarch64|alpha|ia64)
3882 spic=$shared
3883 ;;
3884 mips)
3885 check_64bit mips mips64 '_MIPS_SIM > 1'
3886 spic=$shared
3887 ;;
3888 parisc)
3889 check_64bit parisc parisc64 'sizeof(void *) > 4'
3890 spic=$shared
3891 ;;
3892 ppc)
3893 check_64bit ppc ppc64 'sizeof(void *) > 4'
3894 spic=$shared
3895 ;;
3896 s390)
3897 check_64bit s390 s390x 'sizeof(void *) > 4'
3898 spic=$shared
3899 ;;
3900 sparc)
3901 check_64bit sparc sparc64 'sizeof(void *) > 4'
3902 spic=$shared
3903 ;;
3904 x86)
3905 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3906 if test "$subarch" = "x86_64"; then
3907 spic=$shared
3908 fi
3909 ;;
3910 esac
3911
3912 enable $subarch
3913 enabled spic && enable_weak pic
3914
3915 enabled x86_64 && objformat=elf64 || objformat="elf32"
3916
3917 # OS specific
3918 case $target_os in
3919 aix)
3920 SHFLAGS=-shared
3921 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3922 enabled shared && add_ldflags -Wl,-brtl
3923 ;;
3924 android)
3925 disable symver
3926 enable section_data_rel_ro
3927 SLIB_INSTALL_NAME='$(SLIBNAME)'
3928 SLIB_INSTALL_LINKS=
3929 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3930 ;;
3931 haiku)
3932 prefix_default="/boot/common"
3933 network_extralibs="-lnetwork"
3934 host_extralibs=
3935 ;;
3936 sunos)
3937 SHFLAGS='-shared -Wl,-h,$$(@F)'
3938 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3939 network_extralibs="-lsocket -lnsl"
3940 # When using suncc to build, the Solaris linker will mark
3941 # an executable with each instruction set encountered by
3942 # the Solaris assembler. As our libraries contain their own
3943 # guards for processor-specific code, instead suppress
3944 # generation of the HWCAPS ELF section on Solaris x86 only.
3945 enabled_all suncc x86 &&
3946 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3947 add_ldflags -Wl,-M,mapfile
3948 nm_default='nm -P -g'
3949 version_script='-M'
3950 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3951 ;;
3952 netbsd)
3953 disable symver
3954 oss_indev_extralibs="-lossaudio"
3955 oss_outdev_extralibs="-lossaudio"
3956 ;;
3957 openbsd|bitrig)
3958 disable symver
3959 SHFLAGS='-shared'
3960 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3961 SLIB_INSTALL_LINKS=
3962 oss_indev_extralibs="-lossaudio"
3963 oss_outdev_extralibs="-lossaudio"
3964 ;;
3965 dragonfly)
3966 disable symver
3967 ;;
3968 freebsd)
3969 ;;
3970 bsd/os)
3971 add_extralibs -lpoll -lgnugetopt
3972 ;;
3973 darwin)
3974 enabled ppc && add_asflags -force_cpusubtype_ALL
3975 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3976 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3977 add_ldflags -Wl,-dynamic,-search_paths_first
3978 check_cflags -Werror=partial-availability
3979 SLIBSUF=".dylib"
3980 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3981 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3982 enabled x86_64 && objformat="macho64" || objformat="macho32"
3983 enabled_any pic shared ||
3984 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3985 check_header dispatch/dispatch.h &&
3986 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3987 ;;
3988 msys*)
3989 die "Native MSYS builds are discouraged, please use the MINGW environment."
3990 ;;
3991 mingw32*|mingw64*)
3992 if test $target_os = "mingw32ce"; then
3993 disable network
3994 else
3995 target_os=mingw32
3996 fi
3997 LIBTARGET=i386
3998 if enabled x86_64; then
3999 LIBTARGET="i386:x86-64"
4000 elif enabled arm; then
4001 LIBTARGET=arm-wince
4002 fi
4003 check_ldflags -Wl,--nxcompat
4004 check_ldflags -Wl,--dynamicbase
4005 shlibdir_default="$bindir_default"
4006 SLIBPREF=""
4007 SLIBSUF=".dll"
4008 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4009 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4010 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4011 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4012 SLIB_INSTALL_LINKS=
4013 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4014 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4015 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4016 enabled x86_64 && objformat="win64" || objformat="win32"
4017 dlltool="${cross_prefix}dlltool"
4018 ranlib=:
4019 enable dos_paths
4020 ;;
4021 win32|win64)
4022 disable symver
4023 if enabled shared; then
4024 # Link to the import library instead of the normal static library
4025 # for shared libs.
4026 LD_LIB='%.lib'
4027 # Cannot build both shared and static libs with MSVC or icl.
4028 disable static
4029 fi
4030 shlibdir_default="$bindir_default"
4031 SLIBPREF=""
4032 SLIBSUF=".dll"
4033 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4034 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4035 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4036 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4037 SLIB_INSTALL_LINKS=
4038 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4039 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4040 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4041 enabled x86_64 && objformat="win64" || objformat="win32"
4042 ranlib=:
4043 enable dos_paths
4044 ;;
4045 cygwin*)
4046 target_os=cygwin
4047 shlibdir_default="$bindir_default"
4048 SLIBPREF="cyg"
4049 SLIBSUF=".dll"
4050 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4051 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4052 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4053 SLIB_INSTALL_LINKS=
4054 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4055 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4056 enabled x86_64 && objformat="win64" || objformat="win32"
4057 enable dos_paths
4058 ;;
4059 *-dos|freedos|opendos)
4060 network_extralibs="-lsocket"
4061 objformat="coff"
4062 enable dos_paths
4063 add_cppflags -U__STRICT_ANSI__
4064 ;;
4065 linux)
4066 enable dv1394
4067 enable section_data_rel_ro
4068 ;;
4069 irix*)
4070 target_os=irix
4071 ranlib="echo ignoring ranlib"
4072 ;;
4073 os/2*)
4074 ln_s="cp -f"
4075 objformat="aout"
4076 add_cppflags -D_GNU_SOURCE
4077 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4078 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4079 LIBSUF="_s.a"
4080 SLIBPREF=""
4081 SLIBSUF=".dll"
4082 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4083 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4084 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4085 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4086 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4087 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4088 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4089 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4090 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4091 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4092 enable dos_paths
4093 ;;
4094 gnu/kfreebsd)
4095 add_cppflags -D_BSD_SOURCE
4096 ;;
4097 gnu)
4098 ;;
4099 qnx)
4100 add_cppflags -D_QNX_SOURCE
4101 network_extralibs="-lsocket"
4102 ;;
4103 symbian)
4104 SLIBSUF=".dll"
4105 enable dos_paths
4106 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4107 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4108 add_ldflags -Wl,--target1-abs,--no-undefined \
4109 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4110 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4111 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4112 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4113 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4114 ;;
4115 osf1)
4116 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4117 ;;
4118 minix)
4119 ;;
4120 none)
4121 ;;
4122 *)
4123 die "Unknown OS '$target_os'."
4124 ;;
4125 esac
4126
4127 # determine libc flavour
4128
4129 probe_libc(){
4130 pfx=$1
4131 pfx_no_=${pfx%_}
4132 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4133 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4134 eval ${pfx}libc_type=uclibc
4135 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4136 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4137 eval ${pfx}libc_type=glibc
4138 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4139 # MinGW headers can be installed on Cygwin, so check for newlib first.
4140 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4141 eval ${pfx}libc_type=newlib
4142 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4143 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4144 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4145 eval ${pfx}libc_type=mingw64
4146 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4147 eval test \$${pfx_no_}cc_type = "gcc" &&
4148 add_${pfx}cppflags -D__printf__=__gnu_printf__
4149 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4150 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4151 eval ${pfx}libc_type=mingw32
4152 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4153 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4154 die "ERROR: MinGW32 runtime version must be >= 3.15."
4155 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4156 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4157 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4158 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4159 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4160 eval test \$${pfx_no_}cc_type = "gcc" &&
4161 add_${pfx}cppflags -D__printf__=__gnu_printf__
4162 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4163 eval ${pfx}libc_type=msvcrt
4164 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4165 if [ "$pfx" = host_ ]; then
4166 add_host_cppflags -Dsnprintf=_snprintf
4167 else
4168 add_compat strtod.o strtod=avpriv_strtod
4169 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4170 _snprintf=avpriv_snprintf \
4171 vsnprintf=avpriv_vsnprintf
4172 fi
4173 fi
4174 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4175 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4176 # 0x601 by default unless something else is set by the user.
4177 # This can easily lead to us detecting functions only present
4178 # in such new versions and producing binaries requiring windows 7.0.
4179 # Therefore explicitly set the default to XP unless the user has
4180 # set something else on the command line.
4181 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4182 # family. For these cases, configure is free to use any functions
4183 # found in the SDK headers by default. (Alternatively, we could force
4184 # _WIN32_WINNT to 0x0602 in that case.)
4185 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4186 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4187 #ifdef WINAPI_FAMILY
4188 #include <winapifamily.h>
4189 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4190 #error not desktop
4191 #endif
4192 #endif
4193 EOF
4194 if [ "$pfx" = "" ]; then
4195 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4196 fi
4197 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4198 eval ${pfx}libc_type=klibc
4199 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4200 eval ${pfx}libc_type=bionic
4201 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4202 eval ${pfx}libc_type=solaris
4203 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4204 else
4205 eval ${pfx}libc_type=default
4206 add_${pfx}cppflags -D_DEFAULT_SOURCE
4207 fi
4208 }
4209
4210 probe_libc
4211 test -n "$libc_type" && enable libc_$libc_type
4212 probe_libc host_
4213 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4214
4215 # hacks for compiler/libc/os combinations
4216
4217 case $libc_type in
4218 bionic)
4219 add_compat strtod.o strtod=avpriv_strtod
4220 ;;
4221 glibc)
4222 if enabled tms470; then
4223 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4224 add_cppflags -D__USER_LABEL_PREFIX__=
4225 add_cppflags -D__builtin_memset=memset
4226 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4227 add_cflags -pds=48 # incompatible redefinition of macro
4228 elif enabled ccc; then
4229 add_ldflags -Wl,-z,now # calls to libots crash without this
4230 fi
4231 ;;
4232 esac
4233
4234 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4235 add_cppflags '-I\$(SRC_PATH)/compat/float'
4236
4237 esc(){
4238 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4239 }
4240
4241 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4242
4243 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4244
4245 set_default $PATHS_LIST
4246 set_default nm
4247
4248 # we need to build at least one lib type
4249 if ! enabled_any static shared; then
4250 cat <<EOF
4251 At least one library type must be built.
4252 Specify --enable-static to build the static libraries or --enable-shared to
4253 build the shared libraries as well. To only build the shared libraries specify
4254 --disable-static in addition to --enable-shared.
4255 EOF
4256 exit 1
4257 fi
4258
4259 disabled optimizations || check_cflags -fomit-frame-pointer
4260
4261 enable_weak_pic() {
4262 disabled pic && return
4263 enable pic
4264 add_cppflags -DPIC
4265 case "$target_os" in
4266 mingw*|cygwin*)
4267 ;;
4268 *)
4269 add_cflags -fPIC
4270 ;;
4271 esac
4272 add_asflags -fPIC
4273 }
4274
4275 enabled pic && enable_weak_pic
4276
4277 check_cc <<EOF || die "Symbol mangling check failed."
4278 int ff_extern;
4279 EOF
4280 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4281 extern_prefix=${sym%%ff_extern*}
4282
4283 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4284
4285 _restrict=
4286 for restrict_keyword in restrict __restrict__ __restrict; do
4287 check_cc <<EOF && _restrict=$restrict_keyword && break
4288 void foo(char * $restrict_keyword p);
4289 EOF
4290 done
4291
4292 check_cc <<EOF && enable pragma_deprecated
4293 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4294 EOF
4295
4296 check_cc <<EOF && enable attribute_packed
4297 struct { int x; } __attribute__((packed)) x;
4298 EOF
4299
4300 check_cc <<EOF && enable attribute_may_alias
4301 union { int x; } __attribute__((may_alias)) x;
4302 EOF
4303
4304 check_cc <<EOF || die "endian test failed"
4305 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4306 EOF
4307 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4308
4309 check_gas() {
4310 log "check_gas using '$as' as AS"
4311 # :vararg is used on aarch64, arm and ppc altivec
4312 check_as <<EOF || return 1
4313 .macro m n, y:vararg=0
4314 \n: .int \y
4315 .endm
4316 m x
4317 EOF
4318 # .altmacro is only used in arm asm
4319 ! enabled arm || check_as <<EOF || return 1
4320 .altmacro
4321 EOF
4322 enable gnu_as
4323 return 0
4324 }
4325
4326 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4327 nogas=:
4328 enabled_any arm aarch64 && nogas=die
4329 enabled_all ppc altivec && nogas=warn
4330 as_noop=-v
4331
4332 case $as_type in
4333 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4334 gcc) gaspp_as_type=gas ;;
4335 *) gaspp_as_type=$as_type ;;
4336 esac
4337
4338 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4339
4340 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4341 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4342
4343 if ! check_gas ; then
4344 as=${gas:=$as}
4345 check_gas || \
4346 $nogas "GNU assembler not found, install/update gas-preprocessor"
4347 fi
4348
4349 check_as <<EOF && enable as_func
4350 .func test
4351 .endfunc
4352 EOF
4353 fi
4354
4355 check_inline_asm inline_asm_labels '"1:\n"'
4356
4357 if enabled aarch64; then
4358 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4359 # internal assembler in clang 3.3 does not support this instruction
4360 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4361 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4362
4363 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4364
4365 elif enabled alpha; then
4366
4367 check_cflags -mieee
4368
4369 elif e