configure: Add x86 dependency for mmx_internal
[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 ppc4xx_deps="ppc"
1893 vsx_deps="altivec"
1894 power8_deps="vsx"
1895
1896 cpunop_deps="i686"
1897 x86_64_select="i686"
1898 x86_64_suggest="fast_cmov"
1899
1900 amd3dnow_deps="mmx"
1901 amd3dnowext_deps="amd3dnow"
1902 i686_deps="x86"
1903 mmx_deps="x86"
1904 mmxext_deps="mmx"
1905 sse_deps="mmxext"
1906 sse2_deps="sse"
1907 sse3_deps="sse2"
1908 ssse3_deps="sse3"
1909 sse4_deps="ssse3"
1910 sse42_deps="sse4"
1911 avx_deps="sse42"
1912 xop_deps="avx"
1913 fma3_deps="avx"
1914 fma4_deps="avx"
1915 avx2_deps="avx"
1916
1917 mmx_external_deps="x86asm"
1918 mmx_inline_deps="inline_asm x86"
1919 mmx_suggest="mmx_external mmx_inline"
1920
1921 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1922 eval dep=\$${ext}_deps
1923 eval ${ext}_external_deps='"${dep}_external"'
1924 eval ${ext}_inline_deps='"${dep}_inline"'
1925 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1926 done
1927
1928 aligned_stack_if_any="aarch64 ppc x86"
1929 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1930 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1931 fast_unaligned_if_any="aarch64 ppc x86"
1932 simd_align_16_if_any="altivec neon sse"
1933 simd_align_32_if_any="avx"
1934
1935 # system capabilities
1936 symver_if_any="symver_asm_label symver_gnu_asm"
1937 valgrind_backtrace_conflict="optimizations"
1938 valgrind_backtrace_deps="valgrind_valgrind_h"
1939
1940 # threading support
1941 atomics_gcc_if="sync_val_compare_and_swap"
1942 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1943 atomics_win32_if="MemoryBarrier"
1944 atomics_native_if_any="$ATOMICS_LIST"
1945 w32threads_deps="atomics_native"
1946 threads_if_any="$THREADS_LIST"
1947
1948 # subsystems
1949 dct_select="rdft"
1950 dirac_parse_select="golomb"
1951 error_resilience_select="me_cmp"
1952 faandct_deps="faan fdctdsp"
1953 faanidct_deps="faan idctdsp"
1954 h264dsp_select="startcode"
1955 hevc_ps_select="golomb"
1956 intrax8_select="blockdsp idctdsp"
1957 mdct_select="fft"
1958 rdft_select="fft"
1959 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1960 mpeg_er_select="error_resilience"
1961 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1962 mpegaudiodsp_select="dct"
1963 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1964 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1965 vc1dsp_select="h264chroma qpeldsp startcode"
1966
1967 # decoders / encoders
1968 aac_decoder_select="adts_header imdct15 mdct sinewin"
1969 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1970 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1971 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1972 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1973 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1974 adpcm_g722_decoder_select="g722dsp"
1975 adpcm_g722_encoder_select="g722dsp"
1976 aic_decoder_select="golomb idctdsp"
1977 alac_encoder_select="lpc"
1978 als_decoder_select="bswapdsp"
1979 amrnb_decoder_select="lsp"
1980 amrwb_decoder_select="lsp"
1981 amv_decoder_select="sp5x_decoder"
1982 ape_decoder_select="bswapdsp"
1983 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1984 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1985 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1986 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1987 atrac1_decoder_select="mdct sinewin"
1988 atrac3_decoder_select="mdct"
1989 atrac3p_decoder_select="mdct sinewin"
1990 bink_decoder_select="blockdsp hpeldsp"
1991 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1992 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1993 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1994 clearvideo_decoder_select="idctdsp"
1995 cllc_decoder_select="bswapdsp"
1996 comfortnoise_encoder_select="lpc"
1997 cook_decoder_select="audiodsp mdct sinewin"
1998 cscd_decoder_select="lzo"
1999 cscd_decoder_suggest="zlib"
2000 dca_decoder_select="fmtconvert mdct"
2001 dds_decoder_select="texturedsp"
2002 dnxhd_decoder_select="blockdsp idctdsp"
2003 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2004 dvvideo_decoder_select="dvprofile idctdsp"
2005 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2006 dxa_decoder_deps="zlib"
2007 dxv_decoder_select="lzf texturedsp"
2008 eac3_decoder_select="ac3_decoder"
2009 eac3_encoder_select="ac3_encoder"
2010 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2011 eatgq_decoder_select="aandcttables idctdsp"
2012 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2013 exr_decoder_deps="zlib"
2014 ffv1_decoder_select="rangecoder"
2015 ffv1_encoder_select="rangecoder"
2016 ffvhuff_decoder_select="huffyuv_decoder"
2017 ffvhuff_encoder_select="huffyuv_encoder"
2018 fic_decoder_select="golomb"
2019 flac_decoder_select="flacdsp"
2020 flac_encoder_select="bswapdsp flacdsp lpc"
2021 flashsv_decoder_deps="zlib"
2022 flashsv_encoder_deps="zlib"
2023 flashsv2_decoder_deps="zlib"
2024 flv_decoder_select="h263_decoder"
2025 flv_encoder_select="h263_encoder"
2026 fourxm_decoder_select="blockdsp bswapdsp"
2027 fraps_decoder_select="bswapdsp huffman"
2028 g2m_decoder_deps="zlib"
2029 g2m_decoder_select="blockdsp idctdsp jpegtables"
2030 h261_decoder_select="mpeg_er mpegvideo"
2031 h261_encoder_select="aandcttables mpegvideoenc"
2032 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2033 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2034 h263i_decoder_select="h263_decoder"
2035 h263p_encoder_select="h263_encoder"
2036 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2037 h264_decoder_suggest="error_resilience"
2038 hap_decoder_select="snappy texturedsp"
2039 hap_encoder_deps="libsnappy"
2040 hap_encoder_select="texturedspenc"
2041 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2042 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2043 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2044 iac_decoder_select="imc_decoder"
2045 imc_decoder_select="bswapdsp fft mdct sinewin"
2046 indeo3_decoder_select="hpeldsp"
2047 indeo4_decoder_select="ividsp"
2048 indeo5_decoder_select="ividsp"
2049 interplay_video_decoder_select="hpeldsp"
2050 jpegls_decoder_select="mjpeg_decoder"
2051 jv_decoder_select="blockdsp"
2052 lagarith_decoder_select="huffyuvdsp"
2053 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2054 magicyuv_decoder_select="huffyuvdsp"
2055 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2056 metasound_decoder_select="lsp mdct sinewin"
2057 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2058 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2059 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2060 mjpegb_decoder_select="mjpeg_decoder"
2061 mlp_decoder_select="mlp_parser"
2062 motionpixels_decoder_select="bswapdsp"
2063 mp1_decoder_select="mpegaudio"
2064 mp1float_decoder_select="mpegaudio"
2065 mp2_decoder_select="mpegaudio"
2066 mp2float_decoder_select="mpegaudio"
2067 mp3_decoder_select="mpegaudio"
2068 mp3adu_decoder_select="mpegaudio"
2069 mp3adufloat_decoder_select="mpegaudio"
2070 mp3float_decoder_select="mpegaudio"
2071 mp3on4_decoder_select="mpegaudio"
2072 mp3on4float_decoder_select="mpegaudio"
2073 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2074 mpc8_decoder_select="mpegaudiodsp"
2075 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2076 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2077 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2078 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2079 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2080 mpeg4_encoder_select="h263_encoder"
2081 msa1_decoder_select="mss34dsp"
2082 msmpeg4v1_decoder_select="h263_decoder"
2083 msmpeg4v2_decoder_select="h263_decoder"
2084 msmpeg4v2_encoder_select="h263_encoder"
2085 msmpeg4v3_decoder_select="h263_decoder"
2086 msmpeg4v3_encoder_select="h263_encoder"
2087 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2088 mts2_decoder_select="mss34dsp"
2089 mxpeg_decoder_select="mjpeg_decoder"
2090 nellymoser_decoder_select="mdct sinewin"
2091 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2092 nuv_decoder_select="idctdsp lzo"
2093 on2avc_decoder_select="mdct"
2094 opus_decoder_deps="avresample"
2095 opus_decoder_select="imdct15"
2096 png_decoder_deps="zlib"
2097 png_encoder_deps="zlib"
2098 png_encoder_select="huffyuvencdsp"
2099 prores_decoder_select="idctdsp"
2100 prores_encoder_select="fdctdsp"
2101 qcelp_decoder_select="lsp"
2102 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2103 ra_144_encoder_select="audio_frame_queue lpc"
2104 ralf_decoder_select="golomb"
2105 rscc_decoder_deps="zlib"
2106 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2107 rv10_encoder_select="h263_encoder"
2108 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2109 rv20_encoder_select="h263_encoder"
2110 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2111 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2112 screenpresso_decoder_deps="zlib"
2113 sipr_decoder_select="lsp"
2114 sp5x_decoder_select="mjpeg_decoder"
2115 svq1_decoder_select="hpeldsp"
2116 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2117 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2118 svq3_decoder_suggest="zlib"
2119 tak_decoder_select="audiodsp"
2120 tdsc_decoder_deps="zlib"
2121 tdsc_decoder_select="mjpeg_decoder"
2122 theora_decoder_select="vp3_decoder"
2123 thp_decoder_select="mjpeg_decoder"
2124 tiff_decoder_suggest="zlib"
2125 tiff_encoder_suggest="zlib"
2126 truehd_decoder_select="mlp_decoder"
2127 truemotion2_decoder_select="bswapdsp"
2128 truespeech_decoder_select="bswapdsp"
2129 tscc_decoder_deps="zlib"
2130 txd_decoder_select="texturedsp"
2131 twinvq_decoder_select="mdct lsp sinewin"
2132 utvideo_decoder_select="bswapdsp huffyuvdsp"
2133 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2134 vble_decoder_select="huffyuvdsp"
2135 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2136 vc1image_decoder_select="vc1_decoder"
2137 vorbis_decoder_select="mdct"
2138 vorbis_encoder_select="mdct"
2139 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2140 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2141 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2142 vp6a_decoder_select="vp6_decoder"
2143 vp6f_decoder_select="vp6_decoder"
2144 vp7_decoder_select="h264pred videodsp vp8dsp"
2145 vp8_decoder_select="h264pred videodsp vp8dsp"
2146 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2147 webp_decoder_select="vp8_decoder"
2148 wmapro_decoder_select="mdct sinewin wma_freqs"
2149 wmav1_decoder_select="mdct sinewin wma_freqs"
2150 wmav1_encoder_select="mdct sinewin wma_freqs"
2151 wmav2_decoder_select="mdct sinewin wma_freqs"
2152 wmav2_encoder_select="mdct sinewin wma_freqs"
2153 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2154 wmv1_decoder_select="h263_decoder"
2155 wmv1_encoder_select="h263_encoder"
2156 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2157 wmv2_encoder_select="h263_encoder wmv2dsp"
2158 wmv3_decoder_select="vc1_decoder"
2159 wmv3image_decoder_select="wmv3_decoder"
2160 zerocodec_decoder_deps="zlib"
2161 zlib_decoder_deps="zlib"
2162 zlib_encoder_deps="zlib"
2163 zmbv_decoder_deps="zlib"
2164 zmbv_encoder_deps="zlib"
2165
2166 # hardware accelerators
2167 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2168 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2169 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2170 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2171
2172 h263_vaapi_hwaccel_deps="vaapi"
2173 h263_vaapi_hwaccel_select="h263_decoder"
2174 h264_d3d11va_hwaccel_deps="d3d11va"
2175 h264_d3d11va_hwaccel_select="h264_decoder"
2176 h264_d3d11va2_hwaccel_deps="d3d11va"
2177 h264_d3d11va2_hwaccel_select="h264_decoder"
2178 h264_dxva2_hwaccel_deps="dxva2"
2179 h264_dxva2_hwaccel_select="h264_decoder"
2180 h264_mmal_hwaccel_deps="mmal"
2181 h264_qsv_hwaccel_deps="libmfx"
2182 h264_vaapi_hwaccel_deps="vaapi"
2183 h264_vaapi_hwaccel_select="h264_decoder"
2184 h264_vda_hwaccel_deps="vda"
2185 h264_vda_hwaccel_select="h264_decoder"
2186 h264_vda_old_hwaccel_deps="vda"
2187 h264_vda_old_hwaccel_select="h264_decoder"
2188 h264_vdpau_hwaccel_deps="vdpau"
2189 h264_vdpau_hwaccel_select="h264_decoder"
2190 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2191 hevc_d3d11va_hwaccel_select="hevc_decoder"
2192 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2193 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2194 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2195 hevc_dxva2_hwaccel_select="hevc_decoder"
2196 hevc_qsv_hwaccel_deps="libmfx"
2197 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2198 hevc_vaapi_hwaccel_select="hevc_decoder"
2199 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2200 hevc_vdpau_hwaccel_select="hevc_decoder"
2201 mpeg1_vdpau_hwaccel_deps="vdpau"
2202 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2203 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2204 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2205 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2206 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2207 mpeg2_dxva2_hwaccel_deps="dxva2"
2208 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2209 mpeg2_mmal_hwaccel_deps="mmal"
2210 mpeg2_qsv_hwaccel_deps="libmfx"
2211 mpeg2_vaapi_hwaccel_deps="vaapi"
2212 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2213 mpeg2_vdpau_hwaccel_deps="vdpau"
2214 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2215 mpeg4_vaapi_hwaccel_deps="vaapi"
2216 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2217 mpeg4_vdpau_hwaccel_deps="vdpau"
2218 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2219 vc1_d3d11va_hwaccel_deps="d3d11va"
2220 vc1_d3d11va_hwaccel_select="vc1_decoder"
2221 vc1_d3d11va2_hwaccel_deps="d3d11va"
2222 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2223 vc1_dxva2_hwaccel_deps="dxva2"
2224 vc1_dxva2_hwaccel_select="vc1_decoder"
2225 vc1_mmal_hwaccel_deps="mmal"
2226 vc1_qsv_hwaccel_deps="libmfx"
2227 vc1_vaapi_hwaccel_deps="vaapi"
2228 vc1_vaapi_hwaccel_select="vc1_decoder"
2229 vc1_vdpau_hwaccel_deps="vdpau"
2230 vc1_vdpau_hwaccel_select="vc1_decoder"
2231 vp8_qsv_hwaccel_deps="libmfx"
2232 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2233 vp8_vaapi_hwaccel_select="vp8_decoder"
2234 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2235 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2236 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2237 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2238 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2239
2240 # hardware-accelerated codecs
2241 nvenc_deps_any="libdl LoadLibrary"
2242 omx_deps="libdl pthreads"
2243 omx_rpi_select="omx"
2244 qsvdec_select="qsv"
2245 qsvenc_select="qsv"
2246 vaapi_encode_deps="vaapi"
2247
2248 hwupload_cuda_filter_deps="cuda"
2249 scale_npp_filter_deps="cuda libnpp"
2250
2251 h264_mmal_decoder_deps="mmal"
2252 h264_nvenc_encoder_deps="nvenc"
2253 h264_omx_encoder_deps="omx"
2254 h264_qsv_decoder_deps="libmfx"
2255 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2256 h264_qsv_encoder_deps="libmfx"
2257 h264_qsv_encoder_select="qsvenc"
2258 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2259 h264_vaapi_encoder_select="vaapi_encode golomb"
2260 hevc_nvenc_encoder_deps="nvenc"
2261 hevc_qsv_decoder_deps="libmfx"
2262 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2263 hevc_qsv_encoder_deps="libmfx"
2264 hevc_qsv_encoder_select="hevc_ps qsvenc"
2265 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2266 hevc_vaapi_encoder_select="vaapi_encode golomb"
2267 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2268 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2269 mpeg2_mmal_decoder_deps="mmal"
2270 mpeg2_qsv_decoder_deps="libmfx"
2271 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2272 mpeg2_qsv_encoder_deps="libmfx"
2273 mpeg2_qsv_encoder_select="qsvenc"
2274 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2275 mpeg2_vaapi_encoder_select="vaapi_encode"
2276 mpeg4_omx_encoder_deps="omx"
2277 vc1_mmal_decoder_deps="mmal"
2278 vc1_qsv_decoder_deps="libmfx"
2279 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2280 vp8_qsv_decoder_deps="libmfx"
2281 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2282 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2283 vp8_vaapi_encoder_select="vaapi_encode"
2284 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2285 vp9_vaapi_encoder_select="vaapi_encode"
2286
2287 nvenc_h264_encoder_select="h264_nvenc_encoder"
2288 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2289
2290 # parsers
2291 aac_parser_select="adts_header"
2292 h264_parser_select="golomb h264dsp h264parse"
2293 hevc_parser_select="hevc_ps"
2294 mpegaudio_parser_select="mpegaudioheader"
2295 mpegvideo_parser_select="mpegvideo"
2296 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2297 vc1_parser_select="vc1dsp"
2298
2299 # bitstream_filters
2300 aac_adtstoasc_bsf_select="adts_header"
2301 mjpeg2jpeg_bsf_select="jpegtables"
2302
2303 # external libraries
2304 avisynth_deps="LoadLibrary"
2305 avxsynth_deps="libdl"
2306 avisynth_demuxer_deps_any="avisynth avxsynth"
2307 avisynth_demuxer_select="riffdec"
2308 libdcadec_decoder_deps="libdcadec"
2309 libfaac_encoder_deps="libfaac"
2310 libfaac_encoder_select="audio_frame_queue"
2311 libfdk_aac_decoder_deps="libfdk_aac"
2312 libfdk_aac_encoder_deps="libfdk_aac"
2313 libfdk_aac_encoder_select="audio_frame_queue"
2314 libgsm_decoder_deps="libgsm"
2315 libgsm_encoder_deps="libgsm"
2316 libgsm_ms_decoder_deps="libgsm"
2317 libgsm_ms_encoder_deps="libgsm"
2318 libilbc_decoder_deps="libilbc"
2319 libilbc_encoder_deps="libilbc"
2320 libkvazaar_encoder_deps="libkvazaar"
2321 libmp3lame_encoder_deps="libmp3lame"
2322 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2323 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2324 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2325 libopencore_amrnb_encoder_select="audio_frame_queue"
2326 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2327 libopenh264_decoder_deps="libopenh264"
2328 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2329 libopenh264_encoder_deps="libopenh264"
2330 libopenjpeg_decoder_deps="libopenjpeg"
2331 libopenjpeg_encoder_deps="libopenjpeg"
2332 libopus_decoder_deps="libopus"
2333 libopus_encoder_deps="libopus"
2334 libopus_encoder_select="audio_frame_queue"
2335 libschroedinger_decoder_deps="libschroedinger"
2336 libschroedinger_encoder_deps="libschroedinger"
2337 libspeex_decoder_deps="libspeex"
2338 libspeex_encoder_deps="libspeex"
2339 libspeex_encoder_select="audio_frame_queue"
2340 libtheora_encoder_deps="libtheora"
2341 libtwolame_encoder_deps="libtwolame"
2342 libvo_aacenc_encoder_deps="libvo_aacenc"
2343 libvo_aacenc_encoder_select="audio_frame_queue"
2344 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2345 libvorbis_encoder_deps="libvorbis"
2346 libvorbis_encoder_select="audio_frame_queue"
2347 libvpx_vp8_decoder_deps="libvpx"
2348 libvpx_vp8_encoder_deps="libvpx"
2349 libvpx_vp9_decoder_deps="libvpx"
2350 libvpx_vp9_encoder_deps="libvpx"
2351 libwavpack_encoder_deps="libwavpack"
2352 libwavpack_encoder_select="audio_frame_queue"
2353 libwebp_encoder_deps="libwebp"
2354 libx262_encoder_deps="libx262"
2355 libx264_encoder_deps="libx264"
2356 libx265_encoder_deps="libx265"
2357 libxavs_encoder_deps="libxavs"
2358 libxvid_encoder_deps="libxvid mkstemp"
2359
2360 # demuxers / muxers
2361 ac3_demuxer_select="ac3_parser"
2362 asf_demuxer_select="riffdec"
2363 asf_muxer_select="riffenc"
2364 asf_stream_muxer_select="asf_muxer"
2365 avi_demuxer_select="iso_media riffdec"
2366 avi_muxer_select="riffenc"
2367 caf_demuxer_select="iso_media riffdec"
2368 dash_muxer_select="mp4_muxer"
2369 dirac_demuxer_select="dirac_parser"
2370 dv_demuxer_select="dvprofile"
2371 dv_muxer_select="dvprofile"
2372 dxa_demuxer_select="riffdec"
2373 eac3_demuxer_select="ac3_parser"
2374 f4v_muxer_select="mov_muxer"
2375 flac_demuxer_select="flac_parser"
2376 hds_muxer_select="flv_muxer"
2377 hls_muxer_select="mpegts_muxer"
2378 ipod_muxer_select="mov_muxer"
2379 ismv_muxer_select="mov_muxer"
2380 matroska_audio_muxer_select="matroska_muxer"
2381 matroska_demuxer_select="iso_media riffdec"
2382 matroska_demuxer_suggest="bzlib lzo zlib"
2383 matroska_muxer_select="iso_media riffenc"
2384 mmf_muxer_select="riffenc"
2385 mov_demuxer_select="iso_media riffdec"
2386 mov_demuxer_suggest="zlib"
2387 mov_muxer_select="iso_media riffenc rtpenc_chain"
2388 mp3_demuxer_select="mpegaudio_parser"
2389 mp3_muxer_select="mpegaudioheader"
2390 mp4_muxer_select="mov_muxer"
2391 mpegts_demuxer_select="iso_media"
2392 mpegts_muxer_select="adts_muxer latm_muxer"
2393 mpegtsraw_demuxer_select="mpegts_demuxer"
2394 mxf_d10_muxer_select="mxf_muxer"
2395 nut_muxer_select="riffenc"
2396 nuv_demuxer_select="riffdec"
2397 oga_muxer_select="ogg_muxer"
2398 ogg_demuxer_select="dirac_parse"
2399 opus_muxer_select="ogg_muxer"
2400 psp_muxer_select="mov_muxer"
2401 rtp_demuxer_select="sdp_demuxer"
2402 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2403 rtsp_demuxer_select="http_protocol rtpdec"
2404 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2405 sap_demuxer_select="sdp_demuxer"
2406 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2407 sdp_demuxer_select="rtpdec"
2408 smoothstreaming_muxer_select="ismv_muxer"
2409 spdif_demuxer_select="adts_header"
2410 spdif_muxer_select="adts_header"
2411 spx_muxer_select="ogg_muxer"
2412 swf_demuxer_suggest="zlib"
2413 tak_demuxer_select="tak_parser"
2414 tg2_muxer_select="mov_muxer"
2415 tgp_muxer_select="mov_muxer"
2416 w64_demuxer_select="wav_demuxer"
2417 wav_demuxer_select="riffdec"
2418 wav_muxer_select="riffenc"
2419 webm_muxer_select="iso_media riffenc"
2420 wtv_demuxer_select="mpegts_demuxer riffdec"
2421 xmv_demuxer_select="riffdec"
2422 xwma_demuxer_select="riffdec"
2423
2424 # indevs / outdevs
2425 alsa_indev_deps="alsa"
2426 alsa_outdev_deps="alsa"
2427 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2428 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2429 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2430 dv1394_indev_deps="dv1394"
2431 dv1394_indev_select="dv_demuxer"
2432 fbdev_indev_deps="linux_fb_h"
2433 jack_indev_deps="libjack"
2434 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2435 libcdio_indev_deps="libcdio"
2436 libdc1394_indev_deps="libdc1394"
2437 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2438 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2439 pulse_indev_deps="libpulse"
2440 sndio_indev_deps="sndio"
2441 sndio_outdev_deps="sndio"
2442 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2443 vfwcap_indev_deps="vfw32 vfwcap_defines"
2444 xcbgrab_indev_deps="libxcb libxcb_shape"
2445 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2446
2447 # protocols
2448 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2449 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2450 ffrtmpcrypt_protocol_select="tcp_protocol"
2451 ffrtmphttp_protocol_conflict="librtmp_protocol"
2452 ffrtmphttp_protocol_select="http_protocol"
2453 gopher_protocol_select="network"
2454 http_protocol_select="tcp_protocol"
2455 http_protocol_suggest="zlib"
2456 httpproxy_protocol_select="tcp_protocol"
2457 httpproxy_protocol_suggest="zlib"
2458 https_protocol_select="tls_protocol"
2459 https_protocol_suggest="zlib"
2460 icecast_protocol_select="http_protocol"
2461 librtmp_protocol_deps="librtmp"
2462 librtmpe_protocol_deps="librtmp"
2463 librtmps_protocol_deps="librtmp"
2464 librtmpt_protocol_deps="librtmp"
2465 librtmpte_protocol_deps="librtmp"
2466 mmsh_protocol_select="http_protocol"
2467 mmst_protocol_select="network"
2468 rtmp_protocol_conflict="librtmp_protocol"
2469 rtmp_protocol_select="tcp_protocol"
2470 rtmp_protocol_suggest="zlib"
2471 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2472 rtmpe_protocol_suggest="zlib"
2473 rtmps_protocol_conflict="librtmp_protocol"
2474 rtmps_protocol_select="tls_protocol"
2475 rtmps_protocol_suggest="zlib"
2476 rtmpt_protocol_select="ffrtmphttp_protocol"
2477 rtmpt_protocol_suggest="zlib"
2478 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2479 rtmpte_protocol_suggest="zlib"
2480 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2481 rtmpts_protocol_suggest="zlib"
2482 rtp_protocol_select="udp_protocol"
2483 sctp_protocol_deps="struct_sctp_event_subscribe"
2484 sctp_protocol_select="network"
2485 srtp_protocol_select="rtp_protocol srtp"
2486 tcp_protocol_select="network"
2487 tls_protocol_deps_any="gnutls openssl"
2488 tls_protocol_select="tcp_protocol"
2489 udp_protocol_select="network"
2490 unix_protocol_deps="sys_un_h"
2491 unix_protocol_select="network"
2492
2493 # filters
2494 asyncts_filter_deps="avresample"
2495 blackframe_filter_deps="gpl"
2496 boxblur_filter_deps="gpl"
2497 bs2b_filter_deps="libbs2b"
2498 cropdetect_filter_deps="gpl"
2499 deinterlace_qsv_filter_deps="libmfx"
2500 deinterlace_vaapi_filter_deps="vaapi"
2501 delogo_filter_deps="gpl"
2502 drawtext_filter_deps="libfreetype"
2503 drawtext_filter_suggest="libfontconfig"
2504 frei0r_filter_deps="frei0r libdl"
2505 frei0r_src_filter_deps="frei0r libdl"
2506 hdcd_filter_deps="libhdcd"
2507 hqdn3d_filter_deps="gpl"
2508 interlace_filter_deps="gpl"
2509 movie_filter_deps="avcodec avformat"
2510 ocv_filter_deps="libopencv"
2511 resample_filter_deps="avresample"
2512 scale_filter_deps="swscale"
2513 scale_qsv_filter_deps="libmfx"
2514 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2515
2516 # examples
2517 decode_audio_example_deps="avcodec avutil"
2518 decode_video_example_deps="avcodec avutil"
2519 encode_audio_example_deps="avcodec avutil"
2520 encode_video_example_deps="avcodec avutil"
2521 filter_audio_example_deps="avfilter avutil"
2522 metadata_example_deps="avformat avutil"
2523 output_example_deps="avcodec avformat avresample avutil swscale"
2524 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2525 transcode_aac_example_deps="avcodec avformat avresample"
2526
2527 # EXTRALIBS_LIST
2528 cpu_init_extralibs="pthreads_extralibs"
2529 cws2fws_extralibs="zlib_extralibs"
2530
2531 # libraries, in linking order
2532 avcodec_deps="avutil"
2533 avcodec_select="null_bsf"
2534 avdevice_deps="avformat avcodec avutil"
2535 avfilter_deps="avutil"
2536 avformat_deps="avcodec avutil"
2537 avformat_suggest="network"
2538 avresample_deps="avutil"
2539 swscale_deps="avutil"
2540
2541 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2542 avdevice_extralibs="libm_extralibs"
2543 avformat_extralibs="libm_extralibs"
2544 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2545 avresample_extralibs="libm_extralibs"
2546 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"
2547 swscale_extralibs="libm_extralibs"
2548
2549 # programs
2550 avconv_deps="avcodec avfilter avformat avresample swscale"
2551 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2552 fps_filter null_filter resample_filter scale_filter
2553 trim_filter"
2554 avconv_suggest="psapi shell32"
2555 avplay_deps="avcodec avfilter avformat avresample sdl"
2556 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2557 avplay_suggest="shell32"
2558 avprobe_deps="avcodec avformat"
2559 avprobe_suggest="shell32"
2560
2561 # documentation
2562 pod2man_deps="doc"
2563 texi2html_deps="doc"
2564
2565 # default parameters
2566
2567 logfile="avbuild/config.log"
2568
2569 # installation paths
2570 prefix_default="/usr/local"
2571 bindir_default='${prefix}/bin'
2572 datadir_default='${prefix}/share/avconv'
2573 docdir_default='${prefix}/share/doc/libav'
2574 incdir_default='${prefix}/include'
2575 libdir_default='${prefix}/lib'
2576 mandir_default='${prefix}/share/man'
2577 shlibdir_default="$libdir_default"
2578
2579 # toolchain
2580 ar_default="ar"
2581 cc_default="gcc"
2582 host_cc_default="gcc"
2583 x86asmexe_default="nasm"
2584 ln_s="ln -s -f"
2585 nm_default="nm -g"
2586 pkg_config_default=pkg-config
2587 ranlib="ranlib"
2588 strip="strip"
2589 version_script='--version-script'
2590
2591 # machine
2592 arch_default=$(uname -m)
2593 cpu="generic"
2594 intrinsics="none"
2595
2596 # OS
2597 target_os_default=$(tolower $(uname -s))
2598 host_os=$target_os_default
2599
2600 # configurable options
2601 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2602
2603 enable asm
2604 enable debug
2605 enable doc
2606 enable faan faandct faanidct
2607 enable optimizations
2608 enable safe_bitstream_reader
2609 enable static
2610 enable swscale_alpha
2611 enable valgrind_backtrace
2612
2613 # By default, enable only those hwaccels that have no external dependencies.
2614 enable d3d11va dxva2 vda vdpau
2615
2616 # internal components are enabled by default
2617 enable $EXTRALIBS_LIST
2618
2619 # Avoid external, non-system, libraries getting enabled by dependency resolution
2620 disable $EXTERNAL_LIBRARY_LIST
2621
2622 # build settings
2623 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2624 LIBPREF="lib"
2625 LIBSUF=".a"
2626 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2627 SLIBPREF="lib"
2628 SLIBSUF=".so"
2629 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2630 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2631 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2632 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2633 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2634 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2635 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2636
2637 asflags_filter=echo
2638 cflags_filter=echo
2639 ldflags_filter=echo
2640
2641 AS_C='-c'
2642 AS_O='-o $@'
2643 CC_C='-c'
2644 CC_E='-E -o $@'
2645 CC_O='-o $@'
2646 OBJCC_C='-c'
2647 OBJCC_E='-E -o $@'
2648 OBJCC_O='-o $@'
2649 X86ASM_O='-o $@'
2650 LD_O='-o $@'
2651 LD_LIB='-l%'
2652 LD_PATH='-L'
2653 HOSTCC_C='-c'
2654 HOSTCC_E='-E -o $@'
2655 HOSTCC_O='-o $@'
2656 HOSTLD_O='-o $@'
2657
2658 host_extralibs='-lm'
2659 host_cflags_filter=echo
2660 host_ldflags_filter=echo
2661
2662 target_path='$(CURDIR)'
2663
2664 # since the object filename is not given with the -MM flag, the compiler
2665 # is only able to print the basename, and we must add the path ourselves
2666 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2667 DEPFLAGS='-MM'
2668
2669 mkdir -p avbuild
2670
2671 # find source path
2672 if test -f configure; then
2673 source_path=.
2674 else
2675 source_path=$(cd $(dirname "$0"); pwd)
2676 echo "$source_path" | grep -q '[[:blank:]]' &&
2677 die "Out of tree builds are impossible with whitespace in source path."
2678 test -e "$source_path/config.h" &&
2679 die "Out of tree builds are impossible with config.h in source dir."
2680 fi
2681
2682 for v in "$@"; do
2683 r=${v#*=}
2684 l=${v%"$r"}
2685 r=$(sh_quote "$r")
2686 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2687 done
2688
2689 find_things(){
2690 thing=$1
2691 pattern=$2
2692 file=$source_path/$3
2693 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2694 }
2695
2696 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2697 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2698 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2699 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2700 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2701 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2702 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2703 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2704 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2705
2706 find_things_extern(){
2707 thing=$1
2708 pattern=$2
2709 file=$source_path/$3
2710 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2711 }
2712
2713 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2714 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2715
2716 AVCODEC_COMPONENTS_LIST="
2717 $BSF_LIST
2718 $DECODER_LIST
2719 $ENCODER_LIST
2720 $HWACCEL_LIST
2721 $PARSER_LIST
2722 "
2723
2724 AVDEVICE_COMPONENTS_LIST="
2725 $INDEV_LIST
2726 $OUTDEV_LIST
2727 "
2728
2729 AVFILTER_COMPONENTS_LIST="
2730 $FILTER_LIST
2731 "
2732
2733 AVFORMAT_COMPONENTS_LIST="
2734 $DEMUXER_LIST
2735 $MUXER_LIST
2736 $PROTOCOL_LIST
2737 "
2738
2739 ALL_COMPONENTS="
2740 $AVCODEC_COMPONENTS_LIST
2741 $AVDEVICE_COMPONENTS_LIST
2742 $AVFILTER_COMPONENTS_LIST
2743 $AVFORMAT_COMPONENTS_LIST
2744 "
2745
2746 for n in $COMPONENT_LIST; do
2747 v=$(toupper ${n%s})_LIST
2748 eval enable \$$v
2749 eval ${n}_if_any="\$$v"
2750 done
2751
2752 enable $ARCH_EXT_LIST
2753
2754 die_unknown(){
2755 echo "Unknown option \"$1\"."
2756 echo "See $0 --help for available options."
2757 exit 1
2758 }
2759
2760 print_3_columns() {
2761 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2762 }
2763
2764 show_list() {
2765 suffix=_$1
2766 shift
2767 echo $* | sed s/$suffix//g | print_3_columns
2768 exit 0
2769 }
2770
2771 rand_list(){
2772 IFS=', '
2773 set -- $*
2774 unset IFS
2775 for thing; do
2776 comp=${thing%:*}
2777 prob=${thing#$comp}
2778 prob=${prob#:}
2779 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2780 echo "prob ${prob:-0.5}"
2781 printf '%s\n' $comp
2782 done
2783 }
2784
2785 do_random(){
2786 action=$1
2787 shift
2788 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2789 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2790 }
2791
2792 for opt do
2793 optval="${opt#*=}"
2794 case "$opt" in
2795 --extra-ldflags=*)
2796 add_ldflags $optval
2797 ;;
2798 --extra-ldexeflags=*)
2799 add_ldexeflags $optval
2800 ;;
2801 --extra-libs=*)
2802 add_extralibs $optval
2803 ;;
2804 --disable-devices)
2805 disable $INDEV_LIST $OUTDEV_LIST
2806 ;;
2807 --enable-debug=*)
2808 debuglevel="$optval"
2809 ;;
2810 --disable-programs)
2811 disable $PROGRAM_LIST
2812 ;;
2813 --disable-everything)
2814 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2815 ;;
2816 --disable-all)
2817 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2818 disable $LIBRARY_LIST $PROGRAM_LIST doc
2819 ;;
2820 --enable-random|--disable-random)
2821 action=${opt%%-random}
2822 do_random ${action#--} $COMPONENT_LIST
2823 ;;
2824 --enable-random=*|--disable-random=*)
2825 action=${opt%%-random=*}
2826 do_random ${action#--} $optval
2827 ;;
2828 --enable-*=*|--disable-*=*)
2829 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2830 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2831 eval list=\$$(toupper $thing)_LIST
2832 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2833 $action $(filter "$name" $list)
2834 ;;
2835 --enable-avserver|--disable-avserver*)
2836 warn "avserver has been removed, the ${opt} option is only"\
2837 "provided for compatibility and will be removed in the future"
2838 ;;
2839 --enable-yasm|--disable-yasm)
2840 warn "The ${opt} option is only provided for compatibility and will be\n"\
2841 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2842 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2843 ;;
2844 --enable-?*|--disable-?*)
2845 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2846 if is_in $option $COMPONENT_LIST; then
2847 test $action = disable && action=unset
2848 eval $action \$$(toupper ${option%s})_LIST
2849 elif is_in $option $CMDLINE_SELECT; then
2850 $action $option
2851 else
2852 die_unknown $opt
2853 fi
2854 ;;
2855 --list-*)
2856 NAME="${opt#--list-}"
2857 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2858 NAME=${NAME%s}
2859 eval show_list $NAME \$$(toupper $NAME)_LIST
2860 ;;
2861 --help|-h) show_help
2862 ;;
2863 --quiet|-q) quiet=yes
2864 ;;
2865 *)
2866 optname="${opt%%=*}"
2867 optname="${optname#--}"
2868 optname=$(echo "$optname" | sed 's/-/_/g')
2869 if is_in $optname $CMDLINE_SET; then
2870 eval $optname='$optval'
2871 elif is_in $optname $CMDLINE_APPEND; then
2872 append $optname "$optval"
2873 else
2874 die_unknown $opt
2875 fi
2876 ;;
2877 esac
2878 done
2879
2880 for e in $env; do
2881 eval "export $e"
2882 done
2883
2884 disabled logging && logfile=/dev/null
2885
2886 # Die early if licensing-related configure options are incompatible.
2887 die_license_disabled() {
2888 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2889 }
2890
2891 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2892 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2893 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2894
2895 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2896
2897 enabled_all gnutls openssl &&
2898 die "GnuTLS and OpenSSL must not be enabled at the same time."
2899
2900 # Disable all the library-specific components if the library itself
2901 # is disabled, see AVCODEC_LIST and following _LIST variables.
2902
2903 disable_components(){
2904 disabled ${1} && disable $(
2905 eval components="\$$(toupper ${1})_COMPONENTS"
2906 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2907 )
2908 }
2909
2910 map 'disable_components $v' $LIBRARY_LIST
2911
2912 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2913 set >> $logfile
2914
2915 case "$toolchain" in
2916 *-asan)
2917 cc_default="${toolchain%-asan}"
2918 add_cflags -fsanitize=address
2919 add_ldflags -fsanitize=address
2920 ;;
2921 *-msan)
2922 cc_default="${toolchain%-msan}"
2923 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2924 add_ldflags -fsanitize=memory
2925 ;;
2926 *-tsan)
2927 cc_default="${toolchain%-tsan}"
2928 add_cflags -fsanitize=thread -fPIE
2929 add_ldflags -fsanitize=thread -pie
2930 case "$toolchain" in
2931 gcc-tsan)
2932 add_cflags -fPIC
2933 add_ldflags -fPIC
2934 ;;
2935 esac
2936 ;;
2937 *-usan)
2938 cc_default="${toolchain%-usan}"
2939 add_cflags -fsanitize=undefined
2940 add_ldflags -fsanitize=undefined
2941 case "$toolchain" in
2942 clang-usan)
2943 add_cflags -O1
2944 ;;
2945 esac
2946 ;;
2947 valgrind-*)
2948 target_exec_default="valgrind"
2949 case "$toolchain" in
2950 valgrind-massif)
2951 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2952 ;;
2953 valgrind-memcheck)
2954 target_exec_args="--track-origins=yes --leak-check=full"
2955 ;;
2956 esac
2957 ;;
2958 msvc)
2959 # Check whether the current MSVC version needs the C99 converter.
2960 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2961 # support enough of C99 to build libav. Default to the new
2962 # behaviour if the regexp was unable to match anything, since this
2963 # successfully parses the version number of existing supported
2964 # versions that require the converter (MSVC 2010 and 2012).
2965 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2966 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2967 cc_default="cl"
2968 else
2969 cc_default="c99wrap cl"
2970 fi
2971 ld_default="$source_path/compat/windows/mslink"
2972 nm_default="dumpbin -symbols"
2973 ar_default="lib"
2974 case "$arch" in
2975 arm*)
2976 as_default="armasm"
2977 ;;
2978 esac
2979 target_os_default="win32"
2980 # Use a relative path for TMPDIR. This makes sure all the
2981 # ffconf temp files are written with a relative path, avoiding
2982 # issues with msys/win32 path conversion for MSVC parameters
2983 # such as -Fo<file> or -out:<file>.
2984 TMPDIR=.
2985 ;;
2986 icl)
2987 cc_default="icl"
2988 ld_default="xilink"
2989 nm_default="dumpbin -symbols"
2990 ar_default="xilib"
2991 target_os_default="win32"
2992 TMPDIR=.
2993 ;;
2994 gcov)
2995 add_cflags -fprofile-arcs -ftest-coverage
2996 add_ldflags -fprofile-arcs -ftest-coverage
2997 ;;
2998 llvm-cov)
2999 add_cflags -fprofile-arcs -ftest-coverage
3000 add_ldflags --coverage
3001 ;;
3002 hardened)
3003 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3004 add_cflags -fno-strict-overflow -fstack-protector-all
3005 add_ldflags -Wl,-z,relro -Wl,-z,now
3006 ;;
3007 ?*)
3008 die "Unknown toolchain $toolchain"
3009 ;;
3010 esac
3011
3012 test -n "$cross_prefix" && enable cross_compile
3013
3014 if enabled cross_compile; then
3015 test -n "$arch" && test -n "$target_os" ||
3016 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3017 fi
3018
3019 ar_default="${cross_prefix}${ar_default}"
3020 cc_default="${cross_prefix}${cc_default}"
3021 objcc_default="${cross_prefix}${objcc_default}"
3022 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3023 nm_default="${cross_prefix}${nm_default}"
3024 pkg_config_default="${cross_prefix}${pkg_config_default}"
3025 ranlib="${cross_prefix}${ranlib}"
3026 strip="${cross_prefix}${strip}"
3027
3028 sysinclude_default="${sysroot}/usr/include"
3029
3030 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3031 enabled cross_compile || host_cc_default=$cc
3032 set_default host_cc
3033
3034 if ! $pkg_config --version >/dev/null 2>&1; then
3035 warn "$pkg_config not found, library detection may fail."
3036 pkg_config=false
3037 fi
3038
3039 exesuf() {
3040 case $1 in
3041 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3042 esac
3043 }
3044
3045 EXESUF=$(exesuf $target_os)
3046 HOSTEXESUF=$(exesuf $host_os)
3047
3048 # set temporary file name
3049 : ${TMPDIR:=$TEMPDIR}
3050 : ${TMPDIR:=$TMP}
3051 : ${TMPDIR:=/tmp}
3052
3053 if ! check_cmd mktemp -u XXXXXX; then
3054 # simple replacement for missing mktemp
3055 # NOT SAFE FOR GENERAL USE
3056 mktemp(){
3057 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3058 echo "$tmpname"
3059 mkdir "$tmpname"
3060 }
3061 fi
3062
3063 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3064 die "Unable to create temporary directory in $TMPDIR."
3065
3066 tmpfile(){
3067 tmp="${AVTMPDIR}/test"$2
3068 (set -C; exec > $tmp) 2> /dev/null ||
3069 die "Unable to create temporary file in $AVTMPDIR."
3070 eval $1=$tmp
3071 }
3072
3073 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3074 trap 'exit 2' INT
3075
3076 tmpfile TMPASM .asm
3077 tmpfile TMPC .c
3078 tmpfile TMPE $EXESUF
3079 tmpfile TMPH .h
3080 tmpfile TMPO .o
3081 tmpfile TMPS .S
3082 tmpfile TMPSH .sh
3083 tmpfile TMPV .ver
3084
3085 unset -f mktemp
3086
3087 chmod +x $TMPE
3088
3089 # make sure we can execute files in $TMPDIR
3090 cat > $TMPSH 2>> $logfile <<EOF
3091 #! /bin/sh
3092 EOF
3093 chmod +x $TMPSH >> $logfile 2>&1
3094 if ! $TMPSH >> $logfile 2>&1; then
3095 cat <<EOF
3096 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3097 variable to another directory and make sure that it is not mounted noexec.
3098 EOF
3099 die "Sanity test failed."
3100 fi
3101
3102 armasm_flags(){
3103 for flag; do
3104 case $flag in
3105 # Filter out MSVC cl.exe options from cflags that shouldn't
3106 # be passed to gas-preprocessor
3107 -M[TD]*) ;;
3108 *) echo $flag ;;
3109 esac
3110 done
3111 }
3112
3113 ccc_flags(){
3114 for flag; do
3115 case $flag in
3116 -std=c99) echo -c99 ;;
3117 -mcpu=*) echo -arch ${flag#*=} ;;
3118 -mieee) echo -ieee ;;
3119 -O*|-fast) echo $flag ;;
3120 -fno-math-errno) echo -assume nomath_errno ;;
3121 -g) echo -g3 ;;
3122 -Wall) echo -msg_enable level2 ;;
3123 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3124 -Wl,*) echo $flag ;;
3125 -f*|-W*) ;;
3126 *) echo $flag ;;
3127 esac
3128 done
3129 }
3130
3131 cparser_flags(){
3132 for flag; do
3133 case $flag in
3134 -Wno-switch) echo -Wno-switch-enum ;;
3135 -Wno-format-zero-length) ;;
3136 -Wdisabled-optimization) ;;
3137 -Wno-pointer-sign) echo -Wno-other ;;
3138 *) echo $flag ;;
3139 esac
3140 done
3141 }
3142
3143 msvc_common_flags(){
3144 for flag; do
3145 case $flag in
3146 # In addition to specifying certain flags under the compiler
3147 # specific filters, they must be specified here as well or else the
3148 # generic catch all at the bottom will print the original flag.
3149 -Wall) ;;
3150 -Wextra) ;;
3151 -std=c99) ;;
3152 # Common flags
3153 -fomit-frame-pointer) ;;
3154 -g) echo -Z7 ;;
3155 -fno-math-errno) ;;
3156 -fno-common) ;;
3157 -fno-signed-zeros) ;;
3158 -fPIC) ;;
3159 -mthumb) ;;
3160 -march=*) ;;
3161 -lz) echo zlib.lib ;;
3162 -lx264) echo libx264.lib ;;
3163 -l*) echo ${flag#-l}.lib ;;
3164 -L*) echo -libpath:${flag#-L} ;;
3165 *) echo $flag ;;
3166 esac
3167 done
3168 }
3169
3170 msvc_flags(){
3171 msvc_common_flags "$@"
3172 for flag; do
3173 case $flag in
3174 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3175 -wd4554 ;;
3176 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3177 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3178 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3179 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3180 esac
3181 done
3182 }
3183
3184 icl_flags(){
3185 msvc_common_flags "$@"
3186 for flag; do
3187 case $flag in
3188 # Despite what Intel's documentation says -Wall, which is supported
3189 # on Windows, does enable remarks so disable them here.
3190 -Wall) echo $flag -Qdiag-disable:remark ;;
3191 -std=c99) echo -Qstd=c99 ;;
3192 esac
3193 done
3194 }
3195
3196 pgi_flags(){
3197 for flag; do
3198 case $flag in
3199 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3200 -fomit-frame-pointer) echo -Mnoframe ;;
3201 -g) echo -gopt ;;
3202 *) echo $flag ;;
3203 esac
3204 done
3205 }
3206
3207 suncc_flags(){
3208 for flag; do
3209 case $flag in
3210 -march=*|-mcpu=*)
3211 case "${flag#*=}" in
3212 native) echo -xtarget=native ;;
3213 v9|niagara) echo -xarch=sparc ;;
3214 ultrasparc) echo -xarch=sparcvis ;;
3215 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3216 i586|pentium) echo -xchip=pentium ;;
3217 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3218 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3219 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3220 pentium4*) echo -xtarget=pentium4 ;;
3221 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3222 *-sse3) echo -xarch=sse3 ;;
3223 core2) echo -xarch=ssse3 -xchip=core2 ;;
3224 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3225 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3226 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3227 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3228 k8|opteron|athlon64|athlon-fx)
3229 echo -xarch=sse2a ;;
3230 athlon*) echo -xarch=pentium_proa ;;
3231 esac
3232 ;;
3233 -std=c99) echo -xc99 ;;
3234 -fomit-frame-pointer) echo -xregs=frameptr ;;
3235 -fPIC) echo -KPIC -xcode=pic32 ;;
3236 -W*,*) echo $flag ;;
3237 -f*-*|-W*|-mimpure-text) ;;
3238 -shared) echo -G ;;
3239 *) echo $flag ;;
3240 esac
3241 done
3242 }
3243
3244 tms470_flags(){
3245 for flag; do
3246 case $flag in
3247 -march=*|-mcpu=*)
3248 case "${flag#*=}" in
3249 armv7-a|cortex-a*) echo -mv=7a8 ;;
3250 armv7-r|cortex-r*) echo -mv=7r4 ;;
3251 armv7-m|cortex-m*) echo -mv=7m3 ;;
3252 armv6*|arm11*) echo -mv=6 ;;
3253 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3254 echo -mv=5e ;;
3255 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3256 esac
3257 ;;
3258 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3259 -mfpu=vfp) echo --float_support=vfpv2 ;;
3260 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3261 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3262 -msoft-float) echo --float_support=vfplib ;;
3263 -O[0-3]|-mf=*) echo $flag ;;
3264 -g) echo -g -mn ;;
3265 -pds=*) echo $flag ;;
3266 -D*|-I*) echo $flag ;;
3267 --gcc|--abi=*) echo $flag ;;
3268 -me) echo $flag ;;
3269 esac
3270 done
3271 }
3272
3273 probe_cc(){
3274 pfx=$1
3275 _cc=$2
3276
3277 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3278 unset _ld_o _ldflags _ld_lib _ld_path
3279 unset _depflags _DEPCMD _DEPFLAGS
3280 _flags_filter=echo
3281
3282 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3283 _type=llvm_gcc
3284 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3285 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3286 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3287 _cflags_speed='-O3'
3288 _cflags_size='-Os'
3289 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3290 _type=gcc
3291 gcc_version=$($_cc --version | head -n1)
3292 gcc_basever=$($_cc -dumpversion)
3293 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3294 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3295 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3296 if ! $_cc -dumpversion | grep -q '^2\.'; then
3297 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3298 fi
3299 _cflags_speed='-O3'
3300 _cflags_size='-Os'
3301 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3302 _type=icc
3303 _ident=$($_cc --version | head -n1)
3304 _depflags='-MMD'
3305 _cflags_speed='-O3'
3306 _cflags_size='-Os'
3307 _cflags_noopt='-O1'
3308 elif $_cc -v 2>&1 | grep -q xlc; then
3309 _type=xlc
3310 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3311 _cflags_speed='-O5'
3312 _cflags_size='-O5 -qcompact'
3313 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3314 _type=ccc
3315 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3316 _DEPFLAGS='-M'
3317 _cflags_speed='-fast'
3318 _cflags_size='-O1'
3319 _flags_filter=ccc_flags
3320 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3321 test -d "$sysroot" || die "No valid sysroot specified."
3322 _type=armcc
3323 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3324 armcc_conf="$PWD/armcc.conf"
3325 $_cc --arm_linux_configure \
3326 --arm_linux_config_file="$armcc_conf" \
3327 --configure_sysroot="$sysroot" \
3328 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3329 die "Error creating armcc configuration file."
3330 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3331 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3332 as_default="${cross_prefix}gcc"
3333 _depflags='-MMD'
3334 _cflags_speed='-O3'
3335 _cflags_size='-Os'
3336 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3337 _type=tms470
3338 _ident=$($_cc -version | head -n1 | tr -s ' ')
3339 _flags='--gcc --abi=eabi -me'
3340 _cc_e='-ppl -fe=$@'
3341 _cc_o='-fe=$@'
3342 _depflags='-ppa -ppd=$(@:.o=.d)'
3343 _cflags_speed='-O3 -mf=5'
3344 _cflags_size='-O3 -mf=2'
3345 _flags_filter=tms470_flags
3346 elif $_cc -v 2>&1 | grep -q clang; then
3347 _type=clang
3348 _ident=$($_cc --version 2>/dev/null | head -n1)
3349 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3350 _cflags_speed='-O3'
3351 _cflags_size='-Os'
3352 elif $_cc -V 2>&1 | grep -q Sun; then
3353 _type=suncc
3354 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3355 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3356 _DEPFLAGS='-xM1 -xc99'
3357 _ldflags='-std=c99'
3358 _cflags_speed='-O5'
3359 _cflags_size='-O5 -xspace'
3360 _flags_filter=suncc_flags
3361 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3362 _type=pathscale
3363 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3364 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3365 _cflags_speed='-O2'
3366 _cflags_size='-Os'
3367 _flags_filter='filter_out -Wdisabled-optimization'
3368 elif $_cc -v 2>&1 | grep -q Open64; then
3369 _type=open64
3370 _ident=$($_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|-Wtype-limits|-fno-signed-zeros'
3375 elif $_cc -V 2>&1 | grep -q Portland; then
3376 _type=pgi
3377 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3378 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3379 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3380 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3381 _cflags_noopt="-O1"
3382 _flags_filter=pgi_flags
3383 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3384 _type=armasm
3385 _ident=$($_cc | head -n1)
3386 # 4509: "This form of conditional instruction is deprecated"
3387 _flags="-nologo -ignore 4509"
3388 _flags_filter=armasm_flags
3389 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3390 _type=msvc
3391 _ident=$($_cc 2>&1 | head -n1)
3392 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3393 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3394 _cflags_speed="-O2"
3395 _cflags_size="-O1"
3396 _cflags_noopt="-O1"
3397 if $_cc -nologo- 2>&1 | grep -q Linker; then
3398 _ld_o='-out:$@'
3399 else
3400 _ld_o='-Fe$@'
3401 fi
3402 _cc_o='-Fo$@'
3403 _cc_e='-P -Fi$@'
3404 _flags_filter=msvc_flags
3405 _ld_lib='lib%.a'
3406 _ld_path='-libpath:'
3407 _flags='-nologo'
3408 elif $_cc 2>&1 | grep -q Intel; then
3409 _type=icl
3410 _ident=$($_cc 2>&1 | head -n1)
3411 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3412 # Not only is O3 broken on 13.x+ but it is slower on all previous
3413 # versions (tested) as well.
3414 _cflags_speed="-O2"
3415 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3416 if $_cc 2>&1 | grep -q Linker; then
3417 _ld_o='-out:$@'
3418 else
3419 _ld_o='-Fe$@'
3420 fi
3421 _cc_o='-Fo$@'
3422 _cc_e='-P'
3423 _flags_filter=icl_flags
3424 _ld_lib='lib%.a'
3425 _ld_path='-libpath:'
3426 # -Qdiag-error to make icl error when seeing certain unknown arguments
3427 _flags='-nologo -Qdiag-error:4044,10157'
3428 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3429 # with MSVC which enables it by default.
3430 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3431 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3432 # lld can emulate multiple different linkers; in ms link.exe mode,
3433 # the -? parameter gives the help output which contains an identifyable
3434 # string, while it gives an error in other modes.
3435 _type=lld-link
3436 # The link.exe mode doesn't have a switch for getting the version,
3437 # but we can force it back to gnu mode and get the version from there.
3438 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3439 _ld_o='-out:$@'
3440 _flags_filter=msvc_flags
3441 _ld_lib='lib%.a'
3442 _ld_path='-libpath:'
3443 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3444 _type=cparser
3445 _ident=$($_cc --version | head -n1)
3446 _depflags='-MMD'
3447 _cflags_speed='-O4'
3448 _cflags_size='-O2'
3449 _flags_filter=cparser_flags
3450 fi
3451
3452 eval ${pfx}_type=\$_type
3453 eval ${pfx}_ident=\$_ident
3454 }
3455
3456 set_ccvars(){
3457 eval ${1}_C=\${_cc_c-\${${1}_C}}
3458 eval ${1}_E=\${_cc_e-\${${1}_E}}
3459 eval ${1}_O=\${_cc_o-\${${1}_O}}
3460
3461 if [ -n "$_depflags" ]; then
3462 eval ${1}_DEPFLAGS=\$_depflags
3463 else
3464 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3465 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3466 eval DEP${1}FLAGS=\$_flags
3467 fi
3468 }
3469
3470 probe_cc cc "$cc"
3471 cflags_filter=$_flags_filter
3472 cflags_speed=$_cflags_speed
3473 cflags_size=$_cflags_size
3474 cflags_noopt=$_cflags_noopt
3475 add_cflags $_flags $_cflags
3476 cc_ldflags=$_ldflags
3477 set_ccvars CC
3478
3479 probe_cc hostcc "$host_cc"
3480 host_cflags_filter=$_flags_filter
3481 host_cflags_speed=$_cflags_speed
3482 add_host_cflags $_flags $_cflags
3483 set_ccvars HOSTCC
3484
3485 test -n "$cc_type" && enable $cc_type ||
3486 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3487
3488 : ${as_default:=$cc}
3489 : ${objcc_default:=$cc}
3490 : ${dep_cc_default:=$cc}
3491 : ${ld_default:=$cc}
3492 : ${host_ld_default:=$host_cc}
3493 set_default ar as objcc dep_cc ld host_ld
3494
3495 probe_cc as "$as"
3496 asflags_filter=$_flags_filter
3497 add_asflags $_flags $_cflags
3498 set_ccvars AS
3499
3500 probe_cc objcc "$objcc"
3501 objcflags_filter=$_flags_filter
3502 add_objcflags $_flags $_cflags
3503 set_ccvars OBJC
3504
3505 probe_cc ld "$ld"
3506 ldflags_filter=$_flags_filter
3507 add_ldflags $_flags $_ldflags
3508 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3509 LD_O=${_ld_o-$LD_O}
3510 LD_LIB=${_ld_lib-$LD_LIB}
3511 LD_PATH=${_ld_path-$LD_PATH}
3512
3513 probe_cc hostld "$host_ld"
3514 host_ldflags_filter=$_flags_filter
3515 add_host_ldflags $_flags $_ldflags
3516 HOSTLD_O=${_ld_o-$HOSTLD_O}
3517
3518 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3519 probe_cc depcc "$dep_cc"
3520 CCDEP=${_DEPCMD:-$DEPCMD}
3521 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3522 DEPCCFLAGS=$_flags
3523 fi
3524
3525 if $ar 2>&1 | grep -q Microsoft; then
3526 arflags="-nologo"
3527 ar_o='-out:$@'
3528 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3529 arflags="rq"
3530 ar_o='$@'
3531 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3532 arflags='-Xany -r -c'
3533 ar_o='$@'
3534 else
3535 arflags="rc"
3536 ar_o='$@'
3537 fi
3538
3539 add_cflags $extra_cflags
3540 add_objcflags $extra_objcflags
3541 add_asflags $extra_cflags
3542
3543 if test -n "$sysroot"; then
3544 case "$cc_type" in
3545 gcc|llvm_gcc|clang)
3546 add_cppflags --sysroot="$sysroot"
3547 add_ldflags --sysroot="$sysroot"
3548 ;;
3549 tms470)
3550 add_cppflags -I"$sysinclude"
3551 add_ldflags --sysroot="$sysroot"
3552 ;;
3553 esac
3554 fi
3555
3556 if test "$cpu" = host; then
3557 enabled cross_compile &&
3558 die "--cpu=host makes no sense when cross-compiling."
3559
3560 case "$cc_type" in
3561 gcc|llvm_gcc)
3562 check_native(){
3563 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3564 sed -n "/cc1.*$1=/{
3565 s/.*$1=\\([^ ]*\\).*/\\1/
3566 p
3567 q
3568 }" $TMPE
3569 }
3570 cpu=$(check_native -march || check_native -mcpu)
3571 ;;
3572 esac
3573
3574 test "${cpu:-host}" = host &&
3575 die "--cpu=host not supported with compiler $cc"
3576 fi
3577
3578 # Deal with common $arch aliases
3579 case "$arch" in
3580 aarch64|arm64)
3581 arch="aarch64"
3582 ;;
3583 arm*)
3584 arch="arm"
3585 ;;
3586 mips*|IP*)
3587 case "$arch" in
3588 *el)
3589 add_cppflags -EL
3590 add_ldflags -EL
3591 ;;
3592 *eb)
3593 add_cppflags -EB
3594 add_ldflags -EB
3595 ;;
3596 esac
3597 arch="mips"
3598 ;;
3599 parisc*|hppa*)
3600 arch="parisc"
3601 ;;
3602 "Power Macintosh"|ppc*|powerpc*)
3603 arch="ppc"
3604 ;;
3605 s390|s390x)
3606 arch="s390"
3607 ;;
3608 sh4|sh)
3609 arch="sh4"
3610 ;;
3611 sun4u|sparc*)
3612 arch="sparc"
3613 ;;
3614 tilegx|tile-gx)
3615 arch="tilegx"
3616 ;;
3617 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3618 arch="x86"
3619 ;;
3620 esac
3621
3622 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3623 enable $arch
3624
3625 # Add processor-specific flags
3626 if enabled aarch64; then
3627
3628 case $cpu in
3629 armv*)
3630 cpuflags="-march=$cpu"
3631 ;;
3632 *)
3633 cpuflags="-mcpu=$cpu"
3634 ;;
3635 esac
3636
3637 elif enabled alpha; then
3638
3639 cpuflags="-mcpu=$cpu"
3640
3641 elif enabled arm; then
3642
3643 check_arm_arch() {
3644 check_cpp_condition stddef.h \
3645 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3646 $cpuflags
3647 }
3648
3649 probe_arm_arch() {
3650 if check_arm_arch 4; then echo armv4
3651 elif check_arm_arch 4T; then echo armv4t
3652 elif check_arm_arch 5; then echo armv5
3653 elif check_arm_arch 5E; then echo armv5e
3654 elif check_arm_arch 5T; then echo armv5t
3655 elif check_arm_arch 5TE; then echo armv5te
3656 elif check_arm_arch 5TEJ; then echo armv5te
3657 elif check_arm_arch 6; then echo armv6
3658 elif check_arm_arch 6J; then echo armv6j
3659 elif check_arm_arch 6K; then echo armv6k
3660 elif check_arm_arch 6Z; then echo armv6z
3661 elif check_arm_arch 6ZK; then echo armv6zk
3662 elif check_arm_arch 6T2; then echo armv6t2
3663 elif check_arm_arch 7; then echo armv7
3664 elif check_arm_arch 7A 7_A; then echo armv7-a
3665 elif check_arm_arch 7S; then echo armv7-a
3666 elif check_arm_arch 7R 7_R; then echo armv7-r
3667 elif check_arm_arch 7M 7_M; then echo armv7-m
3668 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3669 elif check_arm_arch 8A 8_A; then echo armv8-a
3670 fi
3671 }
3672
3673 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3674
3675 case $cpu in
3676 armv*)
3677 cpuflags="-march=$cpu"
3678 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3679 ;;
3680 *)
3681 cpuflags="-mcpu=$cpu"
3682 case $cpu in
3683 cortex-a*) subarch=armv7a ;;
3684 cortex-r*) subarch=armv7r ;;
3685 cortex-m*) enable thumb; subarch=armv7m ;;
3686 arm11*) subarch=armv6 ;;
3687 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3688 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3689 *) subarch=$(probe_arm_arch) ;;
3690 esac
3691 ;;
3692 esac
3693
3694 case "$subarch" in
3695 armv5t*) enable fast_clz ;;
3696 armv[6-8]*) enable fast_clz fast_unaligned ;;
3697 esac
3698
3699 elif enabled avr32; then
3700
3701 case $cpu in
3702 ap7[02]0[0-2])
3703 subarch="avr32_ap"
3704 cpuflags="-mpart=$cpu"
3705 ;;
3706 ap)
3707 subarch="avr32_ap"
3708 cpuflags="-march=$cpu"
3709 ;;
3710 uc3[ab]*)
3711 subarch="avr32_uc"
3712 cpuflags="-mcpu=$cpu"
3713 ;;
3714 uc)
3715 subarch="avr32_uc"
3716 cpuflags="-march=$cpu"
3717 ;;
3718 esac
3719
3720 elif enabled bfin; then
3721
3722 cpuflags="-mcpu=$cpu"
3723
3724 elif enabled mips; then
3725
3726 cpuflags="-march=$cpu"
3727
3728 elif enabled ppc; then
3729
3730 disable ldbrx
3731
3732 case $(tolower $cpu) in
3733 601|ppc601|powerpc601)
3734 cpuflags="-mcpu=601"
3735 disable altivec
3736 ;;
3737 603*|ppc603*|powerpc603*)
3738 cpuflags="-mcpu=603"
3739 disable altivec
3740 ;;
3741 604*|ppc604*|powerpc604*)
3742 cpuflags="-mcpu=604"
3743 disable altivec
3744 ;;
3745 g3|75*|ppc75*|powerpc75*)
3746 cpuflags="-mcpu=750"
3747 disable altivec
3748 ;;
3749 g4|745*|ppc745*|powerpc745*)
3750 cpuflags="-mcpu=7450"
3751 disable vsx
3752 ;;
3753 74*|ppc74*|powerpc74*)
3754 cpuflags="-mcpu=7400"
3755 disable vsx
3756 ;;
3757 g5|970|ppc970|powerpc970)
3758 cpuflags="-mcpu=970"
3759 disable vsx
3760 ;;
3761 power[3-6]*)
3762 cpuflags="-mcpu=$cpu"
3763 disable vsx
3764 ;;
3765 power[7-8]*)
3766 cpuflags="-mcpu=$cpu"
3767 enable ldbrx
3768 ;;
3769 cell)
3770 cpuflags="-mcpu=cell"
3771 enable ldbrx
3772 disable vsx
3773 ;;
3774 e500mc)
3775 cpuflags="-mcpu=e500mc"
3776 disable altivec
3777 ;;
3778 e500v2)
3779 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3780 disable altivec
3781 disable dcbzl
3782 ;;
3783 e500)
3784 cpuflags="-mcpu=8540 -mhard-float"
3785 disable altivec
3786 disable dcbzl
3787 ;;
3788 esac
3789
3790 elif enabled sparc; then
3791
3792 case $cpu in
3793 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3794 cpuflags="-mcpu=$cpu"
3795 ;;
3796 ultrasparc*|niagara[234])
3797 cpuflags="-mcpu=$cpu"
3798 ;;
3799 esac
3800
3801 elif enabled x86; then
3802
3803 case $cpu in
3804 i[345]86|pentium)
3805 cpuflags="-march=$cpu"
3806 disable i686
3807 disable mmx
3808 ;;
3809 # targets that do NOT support nopl and conditional mov (cmov)
3810 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3811 cpuflags="-march=$cpu"
3812 disable i686
3813 ;;
3814 # targets that do support nopl and conditional mov (cmov)
3815 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3816 cpuflags="-march=$cpu"
3817 enable i686
3818 enable fast_cmov
3819 ;;
3820 # targets that do support conditional mov but on which it's slow
3821 pentium4|pentium4m|prescott|nocona)
3822 cpuflags="-march=$cpu"
3823 enable i686
3824 disable fast_cmov
3825 ;;
3826 esac
3827
3828 fi
3829
3830 if [ "$cpu" != generic ]; then
3831 add_cflags $cpuflags
3832 add_asflags $cpuflags
3833 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3834 fi
3835
3836 # compiler sanity check
3837 check_exec <<EOF
3838 int main(void){ return 0; }
3839 EOF
3840 if test "$?" != 0; then
3841 echo "$cc is unable to create an executable file."
3842 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3843 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3844 echo "Only do this if you know what cross compiling means."
3845 fi
3846 die "C compiler test failed."
3847 fi
3848
3849 add_cppflags -D_ISOC99_SOURCE
3850
3851 # some compilers silently accept -std=c11, so we also need to check that the
3852 # version macro is defined properly
3853 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3854 add_cflags -std=c11 ||
3855 check_cflags -std=c99
3856
3857 check_cppflags -D_FILE_OFFSET_BITS=64
3858 check_cppflags -D_LARGEFILE_SOURCE
3859
3860 add_host_cppflags -D_ISOC99_SOURCE
3861 check_host_cflags -std=c99
3862 check_host_cflags -Wall
3863 check_host_cflags $host_cflags_speed
3864
3865 check_64bit(){
3866 arch32=$1
3867 arch64=$2
3868 expr=$3
3869 check_code cc "" "int test[2*($expr) - 1]" &&
3870 subarch=$arch64 || subarch=$arch32
3871 }
3872
3873 case "$arch" in
3874 aarch64|alpha|ia64)
3875 spic=$shared
3876 ;;
3877 mips)
3878 check_64bit mips mips64 '_MIPS_SIM > 1'
3879 spic=$shared
3880 ;;
3881 parisc)
3882 check_64bit parisc parisc64 'sizeof(void *) > 4'
3883 spic=$shared
3884 ;;
3885 ppc)
3886 check_64bit ppc ppc64 'sizeof(void *) > 4'
3887 spic=$shared
3888 ;;
3889 s390)
3890 check_64bit s390 s390x 'sizeof(void *) > 4'
3891 spic=$shared
3892 ;;
3893 sparc)
3894 check_64bit sparc sparc64 'sizeof(void *) > 4'
3895 spic=$shared
3896 ;;
3897 x86)
3898 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3899 if test "$subarch" = "x86_64"; then
3900 spic=$shared
3901 fi
3902 ;;
3903 esac
3904
3905 enable $subarch
3906 enabled spic && enable_weak pic
3907
3908 enabled x86_64 && objformat=elf64 || objformat="elf32"
3909
3910 # OS specific
3911 case $target_os in
3912 aix)
3913 SHFLAGS=-shared
3914 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3915 enabled shared && add_ldflags -Wl,-brtl
3916 ;;
3917 android)
3918 disable symver
3919 enable section_data_rel_ro
3920 SLIB_INSTALL_NAME='$(SLIBNAME)'
3921 SLIB_INSTALL_LINKS=
3922 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3923 ;;
3924 haiku)
3925 prefix_default="/boot/common"
3926 network_extralibs="-lnetwork"
3927 host_extralibs=
3928 ;;
3929 sunos)
3930 SHFLAGS='-shared -Wl,-h,$$(@F)'
3931 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3932 network_extralibs="-lsocket -lnsl"
3933 # When using suncc to build, the Solaris linker will mark
3934 # an executable with each instruction set encountered by
3935 # the Solaris assembler. As our libraries contain their own
3936 # guards for processor-specific code, instead suppress
3937 # generation of the HWCAPS ELF section on Solaris x86 only.
3938 enabled_all suncc x86 &&
3939 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3940 add_ldflags -Wl,-M,mapfile
3941 nm_default='nm -P -g'
3942 version_script='-M'
3943 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3944 ;;
3945 netbsd)
3946 disable symver
3947 oss_indev_extralibs="-lossaudio"
3948 oss_outdev_extralibs="-lossaudio"
3949 ;;
3950 openbsd|bitrig)
3951 disable symver
3952 SHFLAGS='-shared'
3953 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3954 SLIB_INSTALL_LINKS=
3955 oss_indev_extralibs="-lossaudio"
3956 oss_outdev_extralibs="-lossaudio"
3957 ;;
3958 dragonfly)
3959 disable symver
3960 ;;
3961 freebsd)
3962 ;;
3963 bsd/os)
3964 add_extralibs -lpoll -lgnugetopt
3965 ;;
3966 darwin)
3967 enabled ppc && add_asflags -force_cpusubtype_ALL
3968 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3969 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3970 add_ldflags -Wl,-dynamic,-search_paths_first
3971 check_cflags -Werror=partial-availability
3972 SLIBSUF=".dylib"
3973 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3974 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3975 enabled x86_64 && objformat="macho64" || objformat="macho32"
3976 enabled_any pic shared ||
3977 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3978 check_header dispatch/dispatch.h &&
3979 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3980 ;;
3981 msys*)
3982 die "Native MSYS builds are discouraged, please use the MINGW environment."
3983 ;;
3984 mingw32*|mingw64*)
3985 if test $target_os = "mingw32ce"; then
3986 disable network
3987 else
3988 target_os=mingw32
3989 fi
3990 LIBTARGET=i386
3991 if enabled x86_64; then
3992 LIBTARGET="i386:x86-64"
3993 elif enabled arm; then
3994 LIBTARGET=arm-wince
3995 fi
3996 check_ldflags -Wl,--nxcompat
3997 check_ldflags -Wl,--dynamicbase
3998 shlibdir_default="$bindir_default"
3999 SLIBPREF=""
4000 SLIBSUF=".dll"
4001 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4002 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4003 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4004 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4005 SLIB_INSTALL_LINKS=
4006 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4007 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4008 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4009 enabled x86_64 && objformat="win64" || objformat="win32"
4010 dlltool="${cross_prefix}dlltool"
4011 ranlib=:
4012 enable dos_paths
4013 ;;
4014 win32|win64)
4015 disable symver
4016 if enabled shared; then
4017 # Link to the import library instead of the normal static library
4018 # for shared libs.
4019 LD_LIB='%.lib'
4020 # Cannot build both shared and static libs with MSVC or icl.
4021 disable static
4022 fi
4023 shlibdir_default="$bindir_default"
4024 SLIBPREF=""
4025 SLIBSUF=".dll"
4026 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4027 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4028 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4029 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4030 SLIB_INSTALL_LINKS=
4031 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4032 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4033 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4034 enabled x86_64 && objformat="win64" || objformat="win32"
4035 ranlib=:
4036 enable dos_paths
4037 ;;
4038 cygwin*)
4039 target_os=cygwin
4040 shlibdir_default="$bindir_default"
4041 SLIBPREF="cyg"
4042 SLIBSUF=".dll"
4043 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4044 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4045 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4046 SLIB_INSTALL_LINKS=
4047 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4048 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4049 enabled x86_64 && objformat="win64" || objformat="win32"
4050 enable dos_paths
4051 ;;
4052 *-dos|freedos|opendos)
4053 network_extralibs="-lsocket"
4054 objformat="coff"
4055 enable dos_paths
4056 add_cppflags -U__STRICT_ANSI__
4057 ;;
4058 linux)
4059 enable dv1394
4060 enable section_data_rel_ro
4061 ;;
4062 irix*)
4063 target_os=irix
4064 ranlib="echo ignoring ranlib"
4065 ;;
4066 os/2*)
4067 ln_s="cp -f"
4068 objformat="aout"
4069 add_cppflags -D_GNU_SOURCE
4070 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4071 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4072 LIBSUF="_s.a"
4073 SLIBPREF=""
4074 SLIBSUF=".dll"
4075 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4076 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4077 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4078 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4079 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4080 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4081 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4082 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4083 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4084 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4085 enable dos_paths
4086 ;;
4087 gnu/kfreebsd)
4088 add_cppflags -D_BSD_SOURCE
4089 ;;
4090 gnu)
4091 ;;
4092 qnx)
4093 add_cppflags -D_QNX_SOURCE
4094 network_extralibs="-lsocket"
4095 ;;
4096 symbian)
4097 SLIBSUF=".dll"
4098 enable dos_paths
4099 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4100 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4101 add_ldflags -Wl,--target1-abs,--no-undefined \
4102 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4103 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4104 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4105 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4106 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4107 ;;
4108 osf1)
4109 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4110 ;;
4111 minix)
4112 ;;
4113 none)
4114 ;;
4115 *)
4116 die "Unknown OS '$target_os'."
4117 ;;
4118 esac
4119
4120 # determine libc flavour
4121
4122 probe_libc(){
4123 pfx=$1
4124 pfx_no_=${pfx%_}
4125 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4126 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4127 eval ${pfx}libc_type=uclibc
4128 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4129 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4130 eval ${pfx}libc_type=glibc
4131 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4132 # MinGW headers can be installed on Cygwin, so check for newlib first.
4133 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4134 eval ${pfx}libc_type=newlib
4135 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4136 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4137 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4138 eval ${pfx}libc_type=mingw64
4139 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4140 eval test \$${pfx_no_}cc_type = "gcc" &&
4141 add_${pfx}cppflags -D__printf__=__gnu_printf__
4142 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4143 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4144 eval ${pfx}libc_type=mingw32
4145 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4146 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4147 die "ERROR: MinGW32 runtime version must be >= 3.15."
4148 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4149 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4150 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4151 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4152 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4153 eval test \$${pfx_no_}cc_type = "gcc" &&
4154 add_${pfx}cppflags -D__printf__=__gnu_printf__
4155 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4156 eval ${pfx}libc_type=msvcrt
4157 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4158 if [ "$pfx" = host_ ]; then
4159 add_host_cppflags -Dsnprintf=_snprintf
4160 else
4161 add_compat strtod.o strtod=avpriv_strtod
4162 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4163 _snprintf=avpriv_snprintf \
4164 vsnprintf=avpriv_vsnprintf
4165 fi
4166 fi
4167 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4168 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4169 # 0x601 by default unless something else is set by the user.
4170 # This can easily lead to us detecting functions only present
4171 # in such new versions and producing binaries requiring windows 7.0.
4172 # Therefore explicitly set the default to XP unless the user has
4173 # set something else on the command line.
4174 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4175 # family. For these cases, configure is free to use any functions
4176 # found in the SDK headers by default. (Alternatively, we could force
4177 # _WIN32_WINNT to 0x0602 in that case.)
4178 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4179 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4180 #ifdef WINAPI_FAMILY
4181 #include <winapifamily.h>
4182 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4183 #error not desktop
4184 #endif
4185 #endif
4186 EOF
4187 if [ "$pfx" = "" ]; then
4188 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4189 fi
4190 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4191 eval ${pfx}libc_type=klibc
4192 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4193 eval ${pfx}libc_type=bionic
4194 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4195 eval ${pfx}libc_type=solaris
4196 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4197 else
4198 eval ${pfx}libc_type=default
4199 add_${pfx}cppflags -D_DEFAULT_SOURCE
4200 fi
4201 }
4202
4203 probe_libc
4204 test -n "$libc_type" && enable libc_$libc_type
4205 probe_libc host_
4206 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4207
4208 # hacks for compiler/libc/os combinations
4209
4210 case $libc_type in
4211 bionic)
4212 add_compat strtod.o strtod=avpriv_strtod
4213 ;;
4214 glibc)
4215 if enabled tms470; then
4216 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4217 add_cppflags -D__USER_LABEL_PREFIX__=
4218 add_cppflags -D__builtin_memset=memset
4219 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4220 add_cflags -pds=48 # incompatible redefinition of macro
4221 elif enabled ccc; then
4222 add_ldflags -Wl,-z,now # calls to libots crash without this
4223 fi
4224 ;;
4225 esac
4226
4227 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4228 add_cppflags '-I\$(SRC_PATH)/compat/float'
4229
4230 esc(){
4231 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4232 }
4233
4234 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4235
4236 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4237
4238 set_default $PATHS_LIST
4239 set_default nm
4240
4241 # we need to build at least one lib type
4242 if ! enabled_any static shared; then
4243 cat <<EOF
4244 At least one library type must be built.
4245 Specify --enable-static to build the static libraries or --enable-shared to
4246 build the shared libraries as well. To only build the shared libraries specify
4247 --disable-static in addition to --enable-shared.
4248 EOF
4249 exit 1
4250 fi
4251
4252 disabled optimizations || check_cflags -fomit-frame-pointer
4253
4254 enable_weak_pic() {
4255 disabled pic && return
4256 enable pic
4257 add_cppflags -DPIC
4258 case "$target_os" in
4259 mingw*|cygwin*)
4260 ;;
4261 *)
4262 add_cflags -fPIC
4263 ;;
4264 esac
4265 add_asflags -fPIC
4266 }
4267
4268 enabled pic && enable_weak_pic
4269
4270 check_cc <<EOF || die "Symbol mangling check failed."
4271 int ff_extern;
4272 EOF
4273 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4274 extern_prefix=${sym%%ff_extern*}
4275
4276 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4277
4278 _restrict=
4279 for restrict_keyword in restrict __restrict__ __restrict; do
4280 check_cc <<EOF && _restrict=$restrict_keyword && break
4281 void foo(char * $restrict_keyword p);
4282 EOF
4283 done
4284
4285 check_cc <<EOF && enable pragma_deprecated
4286 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4287 EOF
4288
4289 check_cc <<EOF && enable attribute_packed
4290 struct { int x; } __attribute__((packed)) x;
4291 EOF
4292
4293 check_cc <<EOF && enable attribute_may_alias
4294 union { int x; } __attribute__((may_alias)) x;
4295 EOF
4296
4297 check_cc <<EOF || die "endian test failed"
4298 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4299 EOF
4300 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4301
4302 check_gas() {
4303 log "check_gas using '$as' as AS"
4304 # :vararg is used on aarch64, arm and ppc altivec
4305 check_as <<EOF || return 1
4306 .macro m n, y:vararg=0
4307 \n: .int \y
4308 .endm
4309 m x
4310 EOF
4311 # .altmacro is only used in arm asm
4312 ! enabled arm || check_as <<EOF || return 1
4313 .altmacro
4314 EOF
4315 enable gnu_as
4316 return 0
4317 }
4318
4319 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4320 nogas=:
4321 enabled_any arm aarch64 && nogas=die
4322 enabled_all ppc altivec && nogas=warn
4323 as_noop=-v
4324
4325 case $as_type in
4326 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4327 gcc) gaspp_as_type=gas ;;
4328 *) gaspp_as_type=$as_type ;;
4329 esac
4330
4331 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4332
4333 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4334 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4335
4336 if ! check_gas ; then
4337 as=${gas:=$as}
4338 check_gas || \
4339 $nogas "GNU assembler not found, install/update gas-preprocessor"
4340 fi
4341
4342 check_as <<EOF && enable as_func
4343 .func test
4344 .endfunc
4345 EOF
4346 fi
4347
4348 check_inline_asm inline_asm_labels '"1:\n"'
4349
4350 if enabled aarch64; then
4351 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4352 # internal assembler in clang 3.3 does not support this instruction
4353 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4354 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4355
4356 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4357
4358 elif enabled alpha; then
4359
4360 check_cflags -mieee
4361
4362 elif enabled arm; then
4363
4364 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4365 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4366 enabled thumb && check_cflags -mthumb || check_cflags -marm
4367