arm: Check for the .arch directive in configure
[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 altivec_h
1551 arpa_inet_h
1552 cdio_paranoia_h
1553 cdio_paranoia_paranoia_h
1554 d3d11_h
1555 dispatch_dispatch_h
1556 dev_bktr_ioctl_bt848_h
1557 dev_bktr_ioctl_meteor_h
1558 dev_ic_bt8xx_h
1559 dev_video_bktr_ioctl_bt848_h
1560 dev_video_meteor_ioctl_meteor_h
1561 direct_h
1562 dlfcn_h
1563 dxva_h
1564 gsm_h
1565 io_h
1566 mach_mach_time_h
1567 machine_ioctl_bt848_h
1568 machine_ioctl_meteor_h
1569 malloc_h
1570 poll_h
1571 sndio_h
1572 soundcard_h
1573 stdatomic_h
1574 sys_mman_h
1575 sys_param_h
1576 sys_resource_h
1577 sys_select_h
1578 sys_soundcard_h
1579 sys_time_h
1580 sys_un_h
1581 sys_videoio_h
1582 unistd_h
1583 valgrind_valgrind_h
1584 windows_h
1585 winsock2_h
1586 "
1587
1588 INTRINSICS_LIST="
1589 intrinsics_neon
1590 "
1591
1592 MATH_FUNCS="
1593 atanf
1594 atan2f
1595 cbrtf
1596 cosf
1597 exp2
1598 exp2f
1599 expf
1600 isinf
1601 isnan
1602 ldexpf
1603 llrint
1604 llrintf
1605 log2
1606 log2f
1607 log10f
1608 lrint
1609 lrintf
1610 powf
1611 rint
1612 round
1613 roundf
1614 sinf
1615 trunc
1616 truncf
1617 "
1618
1619 SYSTEM_FUNCS="
1620 aligned_malloc
1621 clock_gettime
1622 closesocket
1623 CommandLineToArgvW
1624 CoTaskMemFree
1625 CryptGenRandom
1626 fcntl
1627 flt_lim
1628 fork
1629 getaddrinfo
1630 gethrtime
1631 getopt
1632 GetProcessAffinityMask
1633 GetProcessMemoryInfo
1634 GetProcessTimes
1635 getrusage
1636 GetSystemTimeAsFileTime
1637 gettimeofday
1638 gmtime_r
1639 inet_aton
1640 isatty
1641 LoadLibrary
1642 localtime_r
1643 mach_absolute_time
1644 MapViewOfFile
1645 memalign
1646 mkstemp
1647 mmap
1648 mprotect
1649 nanosleep
1650 posix_memalign
1651 sched_getaffinity
1652 SetConsoleTextAttribute
1653 setmode
1654 setrlimit
1655 Sleep
1656 strerror_r
1657 sysconf
1658 sysctl
1659 usleep
1660 VirtualAlloc
1661 "
1662
1663 TOOLCHAIN_FEATURES="
1664 as_arch_directive
1665 as_dn_directive
1666 as_fpu_directive
1667 as_func
1668 as_object_arch
1669 asm_mod_q
1670 attribute_may_alias
1671 attribute_packed
1672 blocks_extension
1673 ebp_available
1674 ebx_available
1675 gnu_as
1676 ibm_asm
1677 inline_asm_labels
1678 pragma_deprecated
1679 symver_asm_label
1680 symver_gnu_asm
1681 vfp_args
1682 xform_asm
1683 xmm_clobbers
1684 "
1685
1686 TYPES_LIST="
1687 CONDITION_VARIABLE_Ptr
1688 socklen_t
1689 struct_addrinfo
1690 struct_group_source_req
1691 struct_ip_mreq_source
1692 struct_ipv6_mreq
1693 struct_pollfd
1694 struct_rusage_ru_maxrss
1695 struct_sockaddr_in6
1696 struct_sockaddr_sa_len
1697 struct_sockaddr_storage
1698 struct_v4l2_frmivalenum_discrete
1699 "
1700
1701 HAVE_LIST="
1702 $ARCH_EXT_LIST
1703 $(add_suffix _external $ARCH_EXT_LIST)
1704 $(add_suffix _inline $ARCH_EXT_LIST)
1705 $ARCH_FEATURES
1706 $BUILTIN_LIST
1707 $HAVE_LIST_CMDLINE
1708 $HAVE_LIST_PUB
1709 $HEADERS_LIST
1710 $INTRINSICS_LIST
1711 $MATH_FUNCS
1712 $SYSTEM_FUNCS
1713 $THREADS_LIST
1714 $TOOLCHAIN_FEATURES
1715 $TYPES_LIST
1716 dos_paths
1717 dxva2_lib
1718 libc_msvcrt
1719 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1720 sdl
1721 section_data_rel_ro
1722 threads
1723 vaapi_drm
1724 vaapi_x11
1725 vdpau_x11
1726 "
1727
1728 # options emitted with CONFIG_ prefix but not available on the command line
1729 CONFIG_EXTRA="
1730 aandcttables
1731 ac3dsp
1732 adts_header
1733 audio_frame_queue
1734 audiodsp
1735 blockdsp
1736 bswapdsp
1737 cabac
1738 dirac_parse
1739 dvprofile
1740 faandct
1741 faanidct
1742 fdctdsp
1743 flacdsp
1744 fmtconvert
1745 g722dsp
1746 gmp
1747 golomb
1748 gplv3
1749 h263dsp
1750 h264chroma
1751 h264dsp
1752 h264parse
1753 h264pred
1754 h264qpel
1755 hevc_ps
1756 hpeldsp
1757 huffman
1758 huffyuvdsp
1759 huffyuvencdsp
1760 idctdsp
1761 iirfilter
1762 imdct15
1763 intrax8
1764 iso_media
1765 ividsp
1766 jpegtables
1767 lgplv3
1768 libx262
1769 libxcb_shape
1770 lpc
1771 lzf
1772 me_cmp
1773 mpeg_er
1774 mpegaudio
1775 mpegaudiodsp
1776 mpegaudioheader
1777 mpegvideo
1778 mpegvideoenc
1779 mss34dsp
1780 pixblockdsp
1781 qpeldsp
1782 qsv
1783 qsvdec
1784 qsvenc
1785 rangecoder
1786 riffdec
1787 riffenc
1788 rtpdec
1789 rtpenc_chain
1790 rv34dsp
1791 sinewin
1792 snappy
1793 srtp
1794 startcode
1795 texturedsp
1796 texturedspenc
1797 tpeldsp
1798 vaapi_encode
1799 vc1dsp
1800 videodsp
1801 vp3dsp
1802 vp56dsp
1803 vp8dsp
1804 wma_freqs
1805 wmv2dsp
1806 "
1807
1808 CMDLINE_SELECT="
1809 $ARCH_EXT_LIST
1810 $CONFIG_LIST
1811 $HAVE_LIST_CMDLINE
1812 $THREADS_LIST
1813 asm
1814 cross_compile
1815 debug
1816 extra_warnings
1817 logging
1818 lto
1819 optimizations
1820 rpath
1821 "
1822
1823 PATHS_LIST="
1824 bindir
1825 datadir
1826 docdir
1827 incdir
1828 libdir
1829 mandir
1830 prefix
1831 shlibdir
1832 "
1833
1834 CMDLINE_SET="
1835 $PATHS_LIST
1836 ar
1837 arch
1838 as
1839 cc
1840 objcc
1841 cpu
1842 cross_prefix
1843 custom_allocator
1844 dep_cc
1845 env
1846 extra_version
1847 host_cc
1848 host_cflags
1849 host_extralibs
1850 host_ld
1851 host_ldflags
1852 host_os
1853 ignore_tests
1854 ld
1855 logfile
1856 malloc_prefix
1857 nm
1858 optflags
1859 pkg_config
1860 pkg_config_flags
1861 random_seed
1862 samples
1863 sysinclude
1864 sysroot
1865 target_exec
1866 target_os
1867 target_path
1868 target_samples
1869 toolchain
1870 x86asmexe
1871 "
1872
1873 CMDLINE_APPEND="
1874 extra_cflags
1875 extra_objcflags
1876 host_cppflags
1877 "
1878
1879 # code dependency declarations
1880
1881 # architecture extensions
1882
1883 armv5te_deps="arm"
1884 armv6_deps="arm"
1885 armv6t2_deps="arm"
1886 armv8_deps="aarch64"
1887 neon_deps_any="aarch64 arm"
1888 intrinsics_neon_deps="neon"
1889 vfp_deps_any="aarch64 arm"
1890 vfpv3_deps="vfp"
1891
1892 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1893
1894 altivec_deps="ppc"
1895 ppc4xx_deps="ppc"
1896 vsx_deps="altivec"
1897 power8_deps="vsx"
1898
1899 cpunop_deps="i686"
1900 x86_64_select="i686"
1901 x86_64_suggest="fast_cmov"
1902
1903 amd3dnow_deps="mmx"
1904 amd3dnowext_deps="amd3dnow"
1905 i686_deps="x86"
1906 mmx_deps="x86"
1907 mmxext_deps="mmx"
1908 sse_deps="mmxext"
1909 sse2_deps="sse"
1910 sse3_deps="sse2"
1911 ssse3_deps="sse3"
1912 sse4_deps="ssse3"
1913 sse42_deps="sse4"
1914 avx_deps="sse42"
1915 xop_deps="avx"
1916 fma3_deps="avx"
1917 fma4_deps="avx"
1918 avx2_deps="avx"
1919
1920 mmx_external_deps="x86asm"
1921 mmx_inline_deps="inline_asm"
1922 mmx_suggest="mmx_external mmx_inline"
1923
1924 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1925 eval dep=\$${ext}_deps
1926 eval ${ext}_external_deps='"${dep}_external"'
1927 eval ${ext}_inline_deps='"${dep}_inline"'
1928 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1929 done
1930
1931 aligned_stack_if_any="aarch64 ppc x86"
1932 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1933 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1934 fast_unaligned_if_any="aarch64 ppc x86"
1935 simd_align_16_if_any="altivec neon sse"
1936 simd_align_32_if_any="avx"
1937
1938 # system capabilities
1939 symver_if_any="symver_asm_label symver_gnu_asm"
1940 valgrind_backtrace_conflict="optimizations"
1941 valgrind_backtrace_deps="valgrind_valgrind_h"
1942
1943 # threading support
1944 atomics_gcc_if="sync_val_compare_and_swap"
1945 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1946 atomics_win32_if="MemoryBarrier"
1947 atomics_native_if_any="$ATOMICS_LIST"
1948 w32threads_deps="atomics_native"
1949 threads_if_any="$THREADS_LIST"
1950
1951 # subsystems
1952 dct_select="rdft"
1953 dirac_parse_select="golomb"
1954 error_resilience_select="me_cmp"
1955 faandct_deps="faan fdctdsp"
1956 faanidct_deps="faan idctdsp"
1957 h264dsp_select="startcode"
1958 hevc_ps_select="golomb"
1959 intrax8_select="blockdsp idctdsp"
1960 mdct_select="fft"
1961 rdft_select="fft"
1962 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1963 mpeg_er_select="error_resilience"
1964 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1965 mpegaudiodsp_select="dct"
1966 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1967 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1968 vc1dsp_select="h264chroma qpeldsp startcode"
1969
1970 # decoders / encoders
1971 aac_decoder_select="adts_header imdct15 mdct sinewin"
1972 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1973 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1974 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1975 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1976 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1977 adpcm_g722_decoder_select="g722dsp"
1978 adpcm_g722_encoder_select="g722dsp"
1979 aic_decoder_select="golomb idctdsp"
1980 alac_encoder_select="lpc"
1981 als_decoder_select="bswapdsp"
1982 amrnb_decoder_select="lsp"
1983 amrwb_decoder_select="lsp"
1984 amv_decoder_select="sp5x_decoder"
1985 ape_decoder_select="bswapdsp"
1986 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1987 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1988 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1989 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1990 atrac1_decoder_select="mdct sinewin"
1991 atrac3_decoder_select="mdct"
1992 atrac3p_decoder_select="mdct sinewin"
1993 bink_decoder_select="blockdsp hpeldsp"
1994 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1995 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1996 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1997 cllc_decoder_select="bswapdsp"
1998 comfortnoise_encoder_select="lpc"
1999 cook_decoder_select="audiodsp mdct sinewin"
2000 cscd_decoder_select="lzo"
2001 cscd_decoder_suggest="zlib"
2002 dca_decoder_select="fmtconvert mdct"
2003 dds_decoder_select="texturedsp"
2004 dnxhd_decoder_select="blockdsp idctdsp"
2005 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2006 dvvideo_decoder_select="dvprofile idctdsp"
2007 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2008 dxa_decoder_deps="zlib"
2009 dxv_decoder_select="lzf texturedsp"
2010 eac3_decoder_select="ac3_decoder"
2011 eac3_encoder_select="ac3_encoder"
2012 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2013 eatgq_decoder_select="aandcttables idctdsp"
2014 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2015 exr_decoder_deps="zlib"
2016 ffv1_decoder_select="rangecoder"
2017 ffv1_encoder_select="rangecoder"
2018 ffvhuff_decoder_select="huffyuv_decoder"
2019 ffvhuff_encoder_select="huffyuv_encoder"
2020 fic_decoder_select="golomb"
2021 flac_decoder_select="flacdsp"
2022 flac_encoder_select="bswapdsp flacdsp lpc"
2023 flashsv_decoder_deps="zlib"
2024 flashsv_encoder_deps="zlib"
2025 flashsv2_decoder_deps="zlib"
2026 flv_decoder_select="h263_decoder"
2027 flv_encoder_select="h263_encoder"
2028 fourxm_decoder_select="blockdsp bswapdsp"
2029 fraps_decoder_select="bswapdsp huffman"
2030 g2m_decoder_deps="zlib"
2031 g2m_decoder_select="blockdsp idctdsp jpegtables"
2032 h261_decoder_select="mpeg_er mpegvideo"
2033 h261_encoder_select="aandcttables mpegvideoenc"
2034 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2035 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2036 h263i_decoder_select="h263_decoder"
2037 h263p_encoder_select="h263_encoder"
2038 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2039 h264_decoder_suggest="error_resilience"
2040 hap_decoder_select="snappy texturedsp"
2041 hap_encoder_deps="libsnappy"
2042 hap_encoder_select="texturedspenc"
2043 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2044 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2045 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2046 iac_decoder_select="imc_decoder"
2047 imc_decoder_select="bswapdsp fft mdct sinewin"
2048 indeo3_decoder_select="hpeldsp"
2049 indeo4_decoder_select="ividsp"
2050 indeo5_decoder_select="ividsp"
2051 interplay_video_decoder_select="hpeldsp"
2052 jpegls_decoder_select="mjpeg_decoder"
2053 jv_decoder_select="blockdsp"
2054 lagarith_decoder_select="huffyuvdsp"
2055 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2056 magicyuv_decoder_select="huffyuvdsp"
2057 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2058 metasound_decoder_select="lsp mdct sinewin"
2059 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2060 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2061 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2062 mjpegb_decoder_select="mjpeg_decoder"
2063 mlp_decoder_select="mlp_parser"
2064 motionpixels_decoder_select="bswapdsp"
2065 mp1_decoder_select="mpegaudio"
2066 mp1float_decoder_select="mpegaudio"
2067 mp2_decoder_select="mpegaudio"
2068 mp2float_decoder_select="mpegaudio"
2069 mp3_decoder_select="mpegaudio"
2070 mp3adu_decoder_select="mpegaudio"
2071 mp3adufloat_decoder_select="mpegaudio"
2072 mp3float_decoder_select="mpegaudio"
2073 mp3on4_decoder_select="mpegaudio"
2074 mp3on4float_decoder_select="mpegaudio"
2075 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2076 mpc8_decoder_select="mpegaudiodsp"
2077 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2078 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2079 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2080 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2081 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2082 mpeg4_encoder_select="h263_encoder"
2083 msa1_decoder_select="mss34dsp"
2084 msmpeg4v1_decoder_select="h263_decoder"
2085 msmpeg4v2_decoder_select="h263_decoder"
2086 msmpeg4v2_encoder_select="h263_encoder"
2087 msmpeg4v3_decoder_select="h263_decoder"
2088 msmpeg4v3_encoder_select="h263_encoder"
2089 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2090 mts2_decoder_select="mss34dsp"
2091 mxpeg_decoder_select="mjpeg_decoder"
2092 nellymoser_decoder_select="mdct sinewin"
2093 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2094 nuv_decoder_select="idctdsp lzo"
2095 on2avc_decoder_select="mdct"
2096 opus_decoder_deps="avresample"
2097 opus_decoder_select="imdct15"
2098 png_decoder_deps="zlib"
2099 png_encoder_deps="zlib"
2100 png_encoder_select="huffyuvencdsp"
2101 prores_decoder_select="idctdsp"
2102 prores_encoder_select="fdctdsp"
2103 qcelp_decoder_select="lsp"
2104 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2105 ra_144_encoder_select="audio_frame_queue lpc"
2106 ralf_decoder_select="golomb"
2107 rscc_decoder_deps="zlib"
2108 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2109 rv10_encoder_select="h263_encoder"
2110 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2111 rv20_encoder_select="h263_encoder"
2112 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2113 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2114 screenpresso_decoder_deps="zlib"
2115 sipr_decoder_select="lsp"
2116 sp5x_decoder_select="mjpeg_decoder"
2117 svq1_decoder_select="hpeldsp"
2118 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2119 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2120 svq3_decoder_suggest="zlib"
2121 tak_decoder_select="audiodsp"
2122 tdsc_decoder_deps="zlib"
2123 tdsc_decoder_select="mjpeg_decoder"
2124 theora_decoder_select="vp3_decoder"
2125 thp_decoder_select="mjpeg_decoder"
2126 tiff_decoder_suggest="zlib"
2127 tiff_encoder_suggest="zlib"
2128 truehd_decoder_select="mlp_decoder"
2129 truemotion2_decoder_select="bswapdsp"
2130 truespeech_decoder_select="bswapdsp"
2131 tscc_decoder_deps="zlib"
2132 txd_decoder_select="texturedsp"
2133 twinvq_decoder_select="mdct lsp sinewin"
2134 utvideo_decoder_select="bswapdsp huffyuvdsp"
2135 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2136 vble_decoder_select="huffyuvdsp"
2137 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2138 vc1image_decoder_select="vc1_decoder"
2139 vorbis_decoder_select="mdct"
2140 vorbis_encoder_select="mdct"
2141 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2142 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2143 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2144 vp6a_decoder_select="vp6_decoder"
2145 vp6f_decoder_select="vp6_decoder"
2146 vp7_decoder_select="h264pred videodsp vp8dsp"
2147 vp8_decoder_select="h264pred videodsp vp8dsp"
2148 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2149 webp_decoder_select="vp8_decoder"
2150 wmapro_decoder_select="mdct sinewin wma_freqs"
2151 wmav1_decoder_select="mdct sinewin wma_freqs"
2152 wmav1_encoder_select="mdct sinewin wma_freqs"
2153 wmav2_decoder_select="mdct sinewin wma_freqs"
2154 wmav2_encoder_select="mdct sinewin wma_freqs"
2155 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2156 wmv1_decoder_select="h263_decoder"
2157 wmv1_encoder_select="h263_encoder"
2158 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2159 wmv2_encoder_select="h263_encoder wmv2dsp"
2160 wmv3_decoder_select="vc1_decoder"
2161 wmv3image_decoder_select="wmv3_decoder"
2162 zerocodec_decoder_deps="zlib"
2163 zlib_decoder_deps="zlib"
2164 zlib_encoder_deps="zlib"
2165 zmbv_decoder_deps="zlib"
2166 zmbv_encoder_deps="zlib"
2167
2168 # hardware accelerators
2169 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2170 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2171 dxva2_lib_deps="dxva2"
2172 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2173 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2174
2175 h263_vaapi_hwaccel_deps="vaapi"
2176 h263_vaapi_hwaccel_select="h263_decoder"
2177 h264_d3d11va_hwaccel_deps="d3d11va"
2178 h264_d3d11va_hwaccel_select="h264_decoder"
2179 h264_dxva2_hwaccel_deps="dxva2"
2180 h264_dxva2_hwaccel_select="h264_decoder"
2181 h264_mmal_hwaccel_deps="mmal"
2182 h264_qsv_hwaccel_deps="libmfx"
2183 h264_vaapi_hwaccel_deps="vaapi"
2184 h264_vaapi_hwaccel_select="h264_decoder"
2185 h264_vda_hwaccel_deps="vda"
2186 h264_vda_hwaccel_select="h264_decoder"
2187 h264_vda_old_hwaccel_deps="vda"
2188 h264_vda_old_hwaccel_select="h264_decoder"
2189 h264_vdpau_hwaccel_deps="vdpau"
2190 h264_vdpau_hwaccel_select="h264_decoder"
2191 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2192 hevc_d3d11va_hwaccel_select="hevc_decoder"
2193 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2194 hevc_dxva2_hwaccel_select="hevc_decoder"
2195 hevc_qsv_hwaccel_deps="libmfx"
2196 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2197 hevc_vaapi_hwaccel_select="hevc_decoder"
2198 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2199 hevc_vdpau_hwaccel_select="hevc_decoder"
2200 mpeg1_vdpau_hwaccel_deps="vdpau"
2201 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2202 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2203 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2204 mpeg2_dxva2_hwaccel_deps="dxva2"
2205 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2206 mpeg2_mmal_hwaccel_deps="mmal"
2207 mpeg2_qsv_hwaccel_deps="libmfx"
2208 mpeg2_vaapi_hwaccel_deps="vaapi"
2209 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2210 mpeg2_vdpau_hwaccel_deps="vdpau"
2211 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2212 mpeg4_vaapi_hwaccel_deps="vaapi"
2213 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2214 mpeg4_vdpau_hwaccel_deps="vdpau"
2215 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2216 vc1_d3d11va_hwaccel_deps="d3d11va"
2217 vc1_d3d11va_hwaccel_select="vc1_decoder"
2218 vc1_dxva2_hwaccel_deps="dxva2"
2219 vc1_dxva2_hwaccel_select="vc1_decoder"
2220 vc1_mmal_hwaccel_deps="mmal"
2221 vc1_qsv_hwaccel_deps="libmfx"
2222 vc1_vaapi_hwaccel_deps="vaapi"
2223 vc1_vaapi_hwaccel_select="vc1_decoder"
2224 vc1_vdpau_hwaccel_deps="vdpau"
2225 vc1_vdpau_hwaccel_select="vc1_decoder"
2226 vp8_qsv_hwaccel_deps="libmfx"
2227 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2228 vp8_vaapi_hwaccel_select="vp8_decoder"
2229 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2230 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2231 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2232 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2233
2234 # hardware-accelerated codecs
2235 nvenc_deps_any="libdl LoadLibrary"
2236 omx_deps="libdl pthreads"
2237 omx_rpi_select="omx"
2238 qsvdec_select="qsv"
2239 qsvenc_select="qsv"
2240 vaapi_encode_deps="vaapi"
2241
2242 hwupload_cuda_filter_deps="cuda"
2243 scale_npp_filter_deps="cuda libnpp"
2244
2245 h264_mmal_decoder_deps="mmal"
2246 h264_nvenc_encoder_deps="nvenc"
2247 h264_omx_encoder_deps="omx"
2248 h264_qsv_decoder_deps="libmfx"
2249 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2250 h264_qsv_encoder_deps="libmfx"
2251 h264_qsv_encoder_select="qsvenc"
2252 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2253 h264_vaapi_encoder_select="vaapi_encode golomb"
2254 hevc_nvenc_encoder_deps="nvenc"
2255 hevc_qsv_decoder_deps="libmfx"
2256 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2257 hevc_qsv_encoder_deps="libmfx"
2258 hevc_qsv_encoder_select="hevc_ps qsvenc"
2259 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2260 hevc_vaapi_encoder_select="vaapi_encode golomb"
2261 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2262 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2263 mpeg2_mmal_decoder_deps="mmal"
2264 mpeg2_qsv_decoder_deps="libmfx"
2265 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2266 mpeg2_qsv_encoder_deps="libmfx"
2267 mpeg2_qsv_encoder_select="qsvenc"
2268 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2269 mpeg2_vaapi_encoder_select="vaapi_encode"
2270 mpeg4_omx_encoder_deps="omx"
2271 vc1_mmal_decoder_deps="mmal"
2272 vc1_qsv_decoder_deps="libmfx"
2273 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2274 vp8_qsv_decoder_deps="libmfx"
2275 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2276 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2277 vp8_vaapi_encoder_select="vaapi_encode"
2278 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2279 vp9_vaapi_encoder_select="vaapi_encode"
2280
2281 nvenc_h264_encoder_select="h264_nvenc_encoder"
2282 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2283
2284 # parsers
2285 aac_parser_select="adts_header"
2286 h264_parser_select="golomb h264dsp h264parse"
2287 hevc_parser_select="hevc_ps"
2288 mpegaudio_parser_select="mpegaudioheader"
2289 mpegvideo_parser_select="mpegvideo"
2290 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2291 vc1_parser_select="vc1dsp"
2292
2293 # bitstream_filters
2294 aac_adtstoasc_bsf_select="adts_header"
2295 mjpeg2jpeg_bsf_select="jpegtables"
2296
2297 # external libraries
2298 avisynth_deps="LoadLibrary"
2299 avxsynth_deps="libdl"
2300 avisynth_demuxer_deps_any="avisynth avxsynth"
2301 avisynth_demuxer_select="riffdec"
2302 libdcadec_decoder_deps="libdcadec"
2303 libfaac_encoder_deps="libfaac"
2304 libfaac_encoder_select="audio_frame_queue"
2305 libfdk_aac_decoder_deps="libfdk_aac"
2306 libfdk_aac_encoder_deps="libfdk_aac"
2307 libfdk_aac_encoder_select="audio_frame_queue"
2308 libgsm_decoder_deps="libgsm"
2309 libgsm_encoder_deps="libgsm"
2310 libgsm_ms_decoder_deps="libgsm"
2311 libgsm_ms_encoder_deps="libgsm"
2312 libilbc_decoder_deps="libilbc"
2313 libilbc_encoder_deps="libilbc"
2314 libkvazaar_encoder_deps="libkvazaar"
2315 libmp3lame_encoder_deps="libmp3lame"
2316 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2317 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2318 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2319 libopencore_amrnb_encoder_select="audio_frame_queue"
2320 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2321 libopenh264_decoder_deps="libopenh264"
2322 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2323 libopenh264_encoder_deps="libopenh264"
2324 libopenjpeg_decoder_deps="libopenjpeg"
2325 libopenjpeg_encoder_deps="libopenjpeg"
2326 libopus_decoder_deps="libopus"
2327 libopus_encoder_deps="libopus"
2328 libopus_encoder_select="audio_frame_queue"
2329 libschroedinger_decoder_deps="libschroedinger"
2330 libschroedinger_encoder_deps="libschroedinger"
2331 libspeex_decoder_deps="libspeex"
2332 libspeex_encoder_deps="libspeex"
2333 libspeex_encoder_select="audio_frame_queue"
2334 libtheora_encoder_deps="libtheora"
2335 libtwolame_encoder_deps="libtwolame"
2336 libvo_aacenc_encoder_deps="libvo_aacenc"
2337 libvo_aacenc_encoder_select="audio_frame_queue"
2338 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2339 libvorbis_encoder_deps="libvorbis"
2340 libvorbis_encoder_select="audio_frame_queue"
2341 libvpx_vp8_decoder_deps="libvpx"
2342 libvpx_vp8_encoder_deps="libvpx"
2343 libvpx_vp9_decoder_deps="libvpx"
2344 libvpx_vp9_encoder_deps="libvpx"
2345 libwavpack_encoder_deps="libwavpack"
2346 libwavpack_encoder_select="audio_frame_queue"
2347 libwebp_encoder_deps="libwebp"
2348 libx262_encoder_deps="libx262"
2349 libx264_encoder_deps="libx264"
2350 libx265_encoder_deps="libx265"
2351 libxavs_encoder_deps="libxavs"
2352 libxvid_encoder_deps="libxvid mkstemp"
2353
2354 # demuxers / muxers
2355 ac3_demuxer_select="ac3_parser"
2356 asf_demuxer_select="riffdec"
2357 asf_muxer_select="riffenc"
2358 asf_stream_muxer_select="asf_muxer"
2359 avi_demuxer_select="iso_media riffdec"
2360 avi_muxer_select="riffenc"
2361 caf_demuxer_select="iso_media riffdec"
2362 dash_muxer_select="mp4_muxer"
2363 dirac_demuxer_select="dirac_parser"
2364 dv_demuxer_select="dvprofile"
2365 dv_muxer_select="dvprofile"
2366 dxa_demuxer_select="riffdec"
2367 eac3_demuxer_select="ac3_parser"
2368 f4v_muxer_select="mov_muxer"
2369 flac_demuxer_select="flac_parser"
2370 hds_muxer_select="flv_muxer"
2371 hls_muxer_select="mpegts_muxer"
2372 ipod_muxer_select="mov_muxer"
2373 ismv_muxer_select="mov_muxer"
2374 matroska_audio_muxer_select="matroska_muxer"
2375 matroska_demuxer_select="iso_media riffdec"
2376 matroska_demuxer_suggest="bzlib lzo zlib"
2377 matroska_muxer_select="iso_media riffenc"
2378 mmf_muxer_select="riffenc"
2379 mov_demuxer_select="iso_media riffdec"
2380 mov_demuxer_suggest="zlib"
2381 mov_muxer_select="iso_media riffenc rtpenc_chain"
2382 mp3_demuxer_select="mpegaudio_parser"
2383 mp3_muxer_select="mpegaudioheader"
2384 mp4_muxer_select="mov_muxer"
2385 mpegts_demuxer_select="iso_media"
2386 mpegts_muxer_select="adts_muxer latm_muxer"
2387 mpegtsraw_demuxer_select="mpegts_demuxer"
2388 mxf_d10_muxer_select="mxf_muxer"
2389 nut_muxer_select="riffenc"
2390 nuv_demuxer_select="riffdec"
2391 oga_muxer_select="ogg_muxer"
2392 ogg_demuxer_select="dirac_parse"
2393 opus_muxer_select="ogg_muxer"
2394 psp_muxer_select="mov_muxer"
2395 rtp_demuxer_select="sdp_demuxer"
2396 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2397 rtsp_demuxer_select="http_protocol rtpdec"
2398 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2399 sap_demuxer_select="sdp_demuxer"
2400 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2401 sdp_demuxer_select="rtpdec"
2402 smoothstreaming_muxer_select="ismv_muxer"
2403 spdif_demuxer_select="adts_header"
2404 spdif_muxer_select="adts_header"
2405 spx_muxer_select="ogg_muxer"
2406 swf_demuxer_suggest="zlib"
2407 tak_demuxer_select="tak_parser"
2408 tg2_muxer_select="mov_muxer"
2409 tgp_muxer_select="mov_muxer"
2410 w64_demuxer_select="wav_demuxer"
2411 wav_demuxer_select="riffdec"
2412 wav_muxer_select="riffenc"
2413 webm_muxer_select="iso_media riffenc"
2414 wtv_demuxer_select="mpegts_demuxer riffdec"
2415 xmv_demuxer_select="riffdec"
2416 xwma_demuxer_select="riffdec"
2417
2418 # indevs / outdevs
2419 alsa_indev_deps="alsa"
2420 alsa_outdev_deps="alsa"
2421 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2422 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2423 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2424 dv1394_indev_deps="dv1394"
2425 dv1394_indev_select="dv_demuxer"
2426 fbdev_indev_deps="linux_fb_h"
2427 jack_indev_deps="libjack"
2428 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2429 libcdio_indev_deps="libcdio"
2430 libdc1394_indev_deps="libdc1394"
2431 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2432 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2433 pulse_indev_deps="libpulse"
2434 sndio_indev_deps="sndio"
2435 sndio_outdev_deps="sndio"
2436 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2437 vfwcap_indev_deps="vfw32 vfwcap_defines"
2438 xcbgrab_indev_deps="libxcb libxcb_shape"
2439 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2440
2441 # protocols
2442 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2443 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2444 ffrtmpcrypt_protocol_select="tcp_protocol"
2445 ffrtmphttp_protocol_conflict="librtmp_protocol"
2446 ffrtmphttp_protocol_select="http_protocol"
2447 gopher_protocol_select="network"
2448 http_protocol_select="tcp_protocol"
2449 httpproxy_protocol_select="tcp_protocol"
2450 https_protocol_select="tls_protocol"
2451 icecast_protocol_select="http_protocol"
2452 librtmp_protocol_deps="librtmp"
2453 librtmpe_protocol_deps="librtmp"
2454 librtmps_protocol_deps="librtmp"
2455 librtmpt_protocol_deps="librtmp"
2456 librtmpte_protocol_deps="librtmp"
2457 mmsh_protocol_select="http_protocol"
2458 mmst_protocol_select="network"
2459 rtmp_protocol_conflict="librtmp_protocol"
2460 rtmp_protocol_select="tcp_protocol"
2461 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2462 rtmps_protocol_conflict="librtmp_protocol"
2463 rtmps_protocol_select="tls_protocol"
2464 rtmpt_protocol_select="ffrtmphttp_protocol"
2465 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2466 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2467 rtp_protocol_select="udp_protocol"
2468 sctp_protocol_deps="struct_sctp_event_subscribe"
2469 sctp_protocol_select="network"
2470 srtp_protocol_select="rtp_protocol srtp"
2471 tcp_protocol_select="network"
2472 tls_gnutls_protocol_deps="gnutls"
2473 tls_gnutls_protocol_select="tcp_protocol"
2474 tls_openssl_protocol_conflict="tls_gnutls_protocol"
2475 tls_openssl_protocol_deps="openssl"
2476 tls_openssl_protocol_select="tcp_protocol"
2477 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2478 udp_protocol_select="network"
2479 unix_protocol_deps="sys_un_h"
2480 unix_protocol_select="network"
2481
2482 # filters
2483 asyncts_filter_deps="avresample"
2484 blackframe_filter_deps="gpl"
2485 boxblur_filter_deps="gpl"
2486 bs2b_filter_deps="libbs2b"
2487 cropdetect_filter_deps="gpl"
2488 deinterlace_qsv_filter_deps="libmfx"
2489 deinterlace_vaapi_filter_deps="vaapi"
2490 delogo_filter_deps="gpl"
2491 drawtext_filter_deps="libfreetype"
2492 drawtext_filter_suggest="libfontconfig"
2493 frei0r_filter_deps="frei0r libdl"
2494 frei0r_src_filter_deps="frei0r libdl"
2495 hdcd_filter_deps="libhdcd"
2496 hqdn3d_filter_deps="gpl"
2497 interlace_filter_deps="gpl"
2498 movie_filter_deps="avcodec avformat"
2499 ocv_filter_deps="libopencv"
2500 resample_filter_deps="avresample"
2501 scale_filter_deps="swscale"
2502 scale_qsv_filter_deps="libmfx"
2503 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2504
2505 # examples
2506 decode_audio_example_deps="avcodec avutil"
2507 decode_video_example_deps="avcodec avutil"
2508 encode_audio_example_deps="avcodec avutil"
2509 encode_video_example_deps="avcodec avutil"
2510 filter_audio_example_deps="avfilter avutil"
2511 metadata_example_deps="avformat avutil"
2512 output_example_deps="avcodec avformat avresample avutil swscale"
2513 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2514 transcode_aac_example_deps="avcodec avformat avresample"
2515
2516 # EXTRALIBS_LIST
2517 cpu_init_extralibs="pthreads_extralibs"
2518 cws2fws_extralibs="zlib_extralibs"
2519
2520 # libraries, in linking order
2521 avcodec_deps="avutil"
2522 avcodec_select="null_bsf"
2523 avdevice_deps="avformat avcodec avutil"
2524 avfilter_deps="avutil"
2525 avformat_deps="avcodec avutil"
2526 avformat_suggest="network"
2527 avresample_deps="avutil"
2528 swscale_deps="avutil"
2529
2530 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2531 avdevice_extralibs="libm_extralibs"
2532 avformat_extralibs="libm_extralibs"
2533 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2534 avresample_extralibs="libm_extralibs"
2535 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"
2536 swscale_extralibs="libm_extralibs"
2537
2538 # programs
2539 avconv_deps="avcodec avfilter avformat avresample swscale"
2540 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2541 fps_filter null_filter resample_filter scale_filter
2542 trim_filter"
2543 avconv_suggest="dxva2_lib ole32 psapi shell32"
2544 avplay_deps="avcodec avfilter avformat avresample sdl"
2545 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2546 avplay_suggest="shell32"
2547 avprobe_deps="avcodec avformat"
2548 avprobe_suggest="shell32"
2549
2550 # documentation
2551 pod2man_deps="doc"
2552 texi2html_deps="doc"
2553
2554 # default parameters
2555
2556 logfile="avbuild/config.log"
2557
2558 # installation paths
2559 prefix_default="/usr/local"
2560 bindir_default='${prefix}/bin'
2561 datadir_default='${prefix}/share/avconv'
2562 docdir_default='${prefix}/share/doc/libav'
2563 incdir_default='${prefix}/include'
2564 libdir_default='${prefix}/lib'
2565 mandir_default='${prefix}/share/man'
2566 shlibdir_default="$libdir_default"
2567
2568 # toolchain
2569 ar_default="ar"
2570 cc_default="gcc"
2571 host_cc_default="gcc"
2572 x86asmexe_default="nasm"
2573 ln_s="ln -s -f"
2574 nm_default="nm -g"
2575 pkg_config_default=pkg-config
2576 ranlib="ranlib"
2577 strip="strip"
2578 version_script='--version-script'
2579
2580 # machine
2581 arch_default=$(uname -m)
2582 cpu="generic"
2583 intrinsics="none"
2584
2585 # OS
2586 target_os_default=$(tolower $(uname -s))
2587 host_os=$target_os_default
2588
2589 # configurable options
2590 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2591
2592 enable asm
2593 enable debug
2594 enable doc
2595 enable faan faandct faanidct
2596 enable optimizations
2597 enable safe_bitstream_reader
2598 enable static
2599 enable swscale_alpha
2600 enable valgrind_backtrace
2601
2602 # By default, enable only those hwaccels that have no external dependencies.
2603 enable d3d11va dxva2 vda vdpau
2604
2605 # internal components are enabled by default
2606 enable $EXTRALIBS_LIST
2607
2608 # Avoid external, non-system, libraries getting enabled by dependency resolution
2609 disable $EXTERNAL_LIBRARY_LIST
2610
2611 # build settings
2612 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2613 LIBPREF="lib"
2614 LIBSUF=".a"
2615 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2616 SLIBPREF="lib"
2617 SLIBSUF=".so"
2618 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2619 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2620 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2621 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2622 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2623 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2624 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2625
2626 asflags_filter=echo
2627 cflags_filter=echo
2628 ldflags_filter=echo
2629
2630 AS_C='-c'
2631 AS_O='-o $@'
2632 CC_C='-c'
2633 CC_E='-E -o $@'
2634 CC_O='-o $@'
2635 OBJCC_C='-c'
2636 OBJCC_E='-E -o $@'
2637 OBJCC_O='-o $@'
2638 X86ASM_O='-o $@'
2639 LD_O='-o $@'
2640 LD_LIB='-l%'
2641 LD_PATH='-L'
2642 HOSTCC_C='-c'
2643 HOSTCC_E='-E -o $@'
2644 HOSTCC_O='-o $@'
2645 HOSTLD_O='-o $@'
2646
2647 host_extralibs='-lm'
2648 host_cflags_filter=echo
2649 host_ldflags_filter=echo
2650
2651 target_path='$(CURDIR)'
2652
2653 # since the object filename is not given with the -MM flag, the compiler
2654 # is only able to print the basename, and we must add the path ourselves
2655 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2656 DEPFLAGS='-MM'
2657
2658 mkdir -p avbuild
2659
2660 # find source path
2661 if test -f configure; then
2662 source_path=.
2663 else
2664 source_path=$(cd $(dirname "$0"); pwd)
2665 echo "$source_path" | grep -q '[[:blank:]]' &&
2666 die "Out of tree builds are impossible with whitespace in source path."
2667 test -e "$source_path/config.h" &&
2668 die "Out of tree builds are impossible with config.h in source dir."
2669 fi
2670
2671 for v in "$@"; do
2672 r=${v#*=}
2673 l=${v%"$r"}
2674 r=$(sh_quote "$r")
2675 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2676 done
2677
2678 find_things(){
2679 thing=$1
2680 pattern=$2
2681 file=$source_path/$3
2682 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2683 }
2684
2685 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2686 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2687 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2688 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2689 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2690 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2691 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2692 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2693 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2694
2695 find_things_extern(){
2696 thing=$1
2697 pattern=$2
2698 file=$source_path/$3
2699 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2700 }
2701
2702 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2703 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2704
2705 AVCODEC_COMPONENTS_LIST="
2706 $BSF_LIST
2707 $DECODER_LIST
2708 $ENCODER_LIST
2709 $HWACCEL_LIST
2710 $PARSER_LIST
2711 "
2712
2713 AVDEVICE_COMPONENTS_LIST="
2714 $INDEV_LIST
2715 $OUTDEV_LIST
2716 "
2717
2718 AVFILTER_COMPONENTS_LIST="
2719 $FILTER_LIST
2720 "
2721
2722 AVFORMAT_COMPONENTS_LIST="
2723 $DEMUXER_LIST
2724 $MUXER_LIST
2725 $PROTOCOL_LIST
2726 "
2727
2728 ALL_COMPONENTS="
2729 $AVCODEC_COMPONENTS_LIST
2730 $AVDEVICE_COMPONENTS_LIST
2731 $AVFILTER_COMPONENTS_LIST
2732 $AVFORMAT_COMPONENTS_LIST
2733 "
2734
2735 for n in $COMPONENT_LIST; do
2736 v=$(toupper ${n%s})_LIST
2737 eval enable \$$v
2738 eval ${n}_if_any="\$$v"
2739 done
2740
2741 enable $ARCH_EXT_LIST
2742
2743 die_unknown(){
2744 echo "Unknown option \"$1\"."
2745 echo "See $0 --help for available options."
2746 exit 1
2747 }
2748
2749 print_3_columns() {
2750 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2751 }
2752
2753 show_list() {
2754 suffix=_$1
2755 shift
2756 echo $* | sed s/$suffix//g | print_3_columns
2757 exit 0
2758 }
2759
2760 rand_list(){
2761 IFS=', '
2762 set -- $*
2763 unset IFS
2764 for thing; do
2765 comp=${thing%:*}
2766 prob=${thing#$comp}
2767 prob=${prob#:}
2768 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2769 echo "prob ${prob:-0.5}"
2770 printf '%s\n' $comp
2771 done
2772 }
2773
2774 do_random(){
2775 action=$1
2776 shift
2777 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2778 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2779 }
2780
2781 for opt do
2782 optval="${opt#*=}"
2783 case "$opt" in
2784 --extra-ldflags=*)
2785 add_ldflags $optval
2786 ;;
2787 --extra-ldexeflags=*)
2788 add_ldexeflags $optval
2789 ;;
2790 --extra-libs=*)
2791 add_extralibs $optval
2792 ;;
2793 --disable-devices)
2794 disable $INDEV_LIST $OUTDEV_LIST
2795 ;;
2796 --enable-debug=*)
2797 debuglevel="$optval"
2798 ;;
2799 --disable-programs)
2800 disable $PROGRAM_LIST
2801 ;;
2802 --disable-everything)
2803 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2804 ;;
2805 --disable-all)
2806 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2807 disable $LIBRARY_LIST $PROGRAM_LIST doc
2808 ;;
2809 --enable-random|--disable-random)
2810 action=${opt%%-random}
2811 do_random ${action#--} $COMPONENT_LIST
2812 ;;
2813 --enable-random=*|--disable-random=*)
2814 action=${opt%%-random=*}
2815 do_random ${action#--} $optval
2816 ;;
2817 --enable-*=*|--disable-*=*)
2818 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2819 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2820 eval list=\$$(toupper $thing)_LIST
2821 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2822 $action $(filter "$name" $list)
2823 ;;
2824 --enable-avserver|--disable-avserver*)
2825 warn "avserver has been removed, the ${opt} option is only"\
2826 "provided for compatibility and will be removed in the future"
2827 ;;
2828 --enable-yasm|--disable-yasm)
2829 warn "The ${opt} option is only provided for compatibility and will be\n"\
2830 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2831 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2832 ;;
2833 --enable-?*|--disable-?*)
2834 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2835 if is_in $option $COMPONENT_LIST; then
2836 test $action = disable && action=unset
2837 eval $action \$$(toupper ${option%s})_LIST
2838 elif is_in $option $CMDLINE_SELECT; then
2839 $action $option
2840 else
2841 die_unknown $opt
2842 fi
2843 ;;
2844 --list-*)
2845 NAME="${opt#--list-}"
2846 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2847 NAME=${NAME%s}
2848 eval show_list $NAME \$$(toupper $NAME)_LIST
2849 ;;
2850 --help|-h) show_help
2851 ;;
2852 --quiet|-q) quiet=yes
2853 ;;
2854 *)
2855 optname="${opt%%=*}"
2856 optname="${optname#--}"
2857 optname=$(echo "$optname" | sed 's/-/_/g')
2858 if is_in $optname $CMDLINE_SET; then
2859 eval $optname='$optval'
2860 elif is_in $optname $CMDLINE_APPEND; then
2861 append $optname "$optval"
2862 else
2863 die_unknown $opt
2864 fi
2865 ;;
2866 esac
2867 done
2868
2869 for e in $env; do
2870 eval "export $e"
2871 done
2872
2873 disabled logging && logfile=/dev/null
2874
2875 # Die early if licensing-related configure options are incompatible.
2876 die_license_disabled() {
2877 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2878 }
2879
2880 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2881 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2882 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2883
2884 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2885
2886 # Disable all the library-specific components if the library itself
2887 # is disabled, see AVCODEC_LIST and following _LIST variables.
2888
2889 disable_components(){
2890 disabled ${1} && disable $(
2891 eval components="\$$(toupper ${1})_COMPONENTS"
2892 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2893 )
2894 }
2895
2896 map 'disable_components $v' $LIBRARY_LIST
2897
2898 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2899 set >> $logfile
2900
2901 case "$toolchain" in
2902 *-asan)
2903 cc_default="${toolchain%-asan}"
2904 add_cflags -fsanitize=address
2905 add_ldflags -fsanitize=address
2906 ;;
2907 *-msan)
2908 cc_default="${toolchain%-msan}"
2909 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2910 add_ldflags -fsanitize=memory
2911 ;;
2912 *-tsan)
2913 cc_default="${toolchain%-tsan}"
2914 add_cflags -fsanitize=thread -fPIE
2915 add_ldflags -fsanitize=thread -pie
2916 case "$toolchain" in
2917 gcc-tsan)
2918 add_cflags -fPIC
2919 add_ldflags -fPIC
2920 ;;
2921 esac
2922 ;;
2923 *-usan)
2924 cc_default="${toolchain%-usan}"
2925 add_cflags -fsanitize=undefined
2926 add_ldflags -fsanitize=undefined
2927 case "$toolchain" in
2928 clang-usan)
2929 add_cflags -O1
2930 ;;
2931 esac
2932 ;;
2933 valgrind-*)
2934 target_exec_default="valgrind"
2935 case "$toolchain" in
2936 valgrind-massif)
2937 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2938 ;;
2939 valgrind-memcheck)
2940 target_exec_args="--track-origins=yes --leak-check=full"
2941 ;;
2942 esac
2943 ;;
2944 msvc)
2945 # Check whether the current MSVC version needs the C99 converter.
2946 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2947 # support enough of C99 to build libav. Default to the new
2948 # behaviour if the regexp was unable to match anything, since this
2949 # successfully parses the version number of existing supported
2950 # versions that require the converter (MSVC 2010 and 2012).
2951 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2952 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2953 cc_default="cl"
2954 else
2955 cc_default="c99wrap cl"
2956 fi
2957 ld_default="$source_path/compat/windows/mslink"
2958 nm_default="dumpbin -symbols"
2959 ar_default="lib"
2960 case "$arch" in
2961 arm*)
2962 as_default="armasm"
2963 ;;
2964 esac
2965 target_os_default="win32"
2966 # Use a relative path for TMPDIR. This makes sure all the
2967 # ffconf temp files are written with a relative path, avoiding
2968 # issues with msys/win32 path conversion for MSVC parameters
2969 # such as -Fo<file> or -out:<file>.
2970 TMPDIR=.
2971 ;;
2972 icl)
2973 cc_default="icl"
2974 ld_default="xilink"
2975 nm_default="dumpbin -symbols"
2976 ar_default="xilib"
2977 target_os_default="win32"
2978 TMPDIR=.
2979 ;;
2980 gcov)
2981 add_cflags -fprofile-arcs -ftest-coverage
2982 add_ldflags -fprofile-arcs -ftest-coverage
2983 ;;
2984 llvm-cov)
2985 add_cflags -fprofile-arcs -ftest-coverage
2986 add_ldflags --coverage
2987 ;;
2988 hardened)
2989 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2990 add_cflags -fno-strict-overflow -fstack-protector-all
2991 add_ldflags -Wl,-z,relro -Wl,-z,now
2992 ;;
2993 ?*)
2994 die "Unknown toolchain $toolchain"
2995 ;;
2996 esac
2997
2998 test -n "$cross_prefix" && enable cross_compile
2999
3000 if enabled cross_compile; then
3001 test -n "$arch" && test -n "$target_os" ||
3002 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3003 fi
3004
3005 ar_default="${cross_prefix}${ar_default}"
3006 cc_default="${cross_prefix}${cc_default}"
3007 objcc_default="${cross_prefix}${objcc_default}"
3008 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3009 nm_default="${cross_prefix}${nm_default}"
3010 pkg_config_default="${cross_prefix}${pkg_config_default}"
3011 ranlib="${cross_prefix}${ranlib}"
3012 strip="${cross_prefix}${strip}"
3013
3014 sysinclude_default="${sysroot}/usr/include"
3015
3016 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3017 enabled cross_compile || host_cc_default=$cc
3018 set_default host_cc
3019
3020 if ! $pkg_config --version >/dev/null 2>&1; then
3021 warn "$pkg_config not found, library detection may fail."
3022 pkg_config=false
3023 fi
3024
3025 exesuf() {
3026 case $1 in
3027 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3028 esac
3029 }
3030
3031 EXESUF=$(exesuf $target_os)
3032 HOSTEXESUF=$(exesuf $host_os)
3033
3034 # set temporary file name
3035 : ${TMPDIR:=$TEMPDIR}
3036 : ${TMPDIR:=$TMP}
3037 : ${TMPDIR:=/tmp}
3038
3039 if ! check_cmd mktemp -u XXXXXX; then
3040 # simple replacement for missing mktemp
3041 # NOT SAFE FOR GENERAL USE
3042 mktemp(){
3043 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3044 echo "$tmpname"
3045 mkdir "$tmpname"
3046 }
3047 fi
3048
3049 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3050 die "Unable to create temporary directory in $TMPDIR."
3051
3052 tmpfile(){
3053 tmp="${AVTMPDIR}/test"$2
3054 (set -C; exec > $tmp) 2> /dev/null ||
3055 die "Unable to create temporary file in $AVTMPDIR."
3056 eval $1=$tmp
3057 }
3058
3059 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3060 trap 'exit 2' INT
3061
3062 tmpfile TMPASM .asm
3063 tmpfile TMPC .c
3064 tmpfile TMPE $EXESUF
3065 tmpfile TMPH .h
3066 tmpfile TMPO .o
3067 tmpfile TMPS .S
3068 tmpfile TMPSH .sh
3069 tmpfile TMPV .ver
3070
3071 unset -f mktemp
3072
3073 chmod +x $TMPE
3074
3075 # make sure we can execute files in $TMPDIR
3076 cat > $TMPSH 2>> $logfile <<EOF
3077 #! /bin/sh
3078 EOF
3079 chmod +x $TMPSH >> $logfile 2>&1
3080 if ! $TMPSH >> $logfile 2>&1; then
3081 cat <<EOF
3082 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3083 variable to another directory and make sure that it is not mounted noexec.
3084 EOF
3085 die "Sanity test failed."
3086 fi
3087
3088 armasm_flags(){
3089 for flag; do
3090 case $flag in
3091 # Filter out MSVC cl.exe options from cflags that shouldn't
3092 # be passed to gas-preprocessor
3093 -M[TD]*) ;;
3094 *) echo $flag ;;
3095 esac
3096 done
3097 }
3098
3099 ccc_flags(){
3100 for flag; do
3101 case $flag in
3102 -std=c99) echo -c99 ;;
3103 -mcpu=*) echo -arch ${flag#*=} ;;
3104 -mieee) echo -ieee ;;
3105 -O*|-fast) echo $flag ;;
3106 -fno-math-errno) echo -assume nomath_errno ;;
3107 -g) echo -g3 ;;
3108 -Wall) echo -msg_enable level2 ;;
3109 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3110 -Wl,*) echo $flag ;;
3111 -f*|-W*) ;;
3112 *) echo $flag ;;
3113 esac
3114 done
3115 }
3116
3117 cparser_flags(){
3118 for flag; do
3119 case $flag in
3120 -Wno-switch) echo -Wno-switch-enum ;;
3121 -Wno-format-zero-length) ;;
3122 -Wdisabled-optimization) ;;
3123 -Wno-pointer-sign) echo -Wno-other ;;
3124 *) echo $flag ;;
3125 esac
3126 done
3127 }
3128
3129 msvc_common_flags(){
3130 for flag; do
3131 case $flag in
3132 # In addition to specifying certain flags under the compiler
3133 # specific filters, they must be specified here as well or else the
3134 # generic catch all at the bottom will print the original flag.
3135 -Wall) ;;
3136 -Wextra) ;;
3137 -std=c99) ;;
3138 # Common flags
3139 -fomit-frame-pointer) ;;
3140 -g) echo -Z7 ;;
3141 -fno-math-errno) ;;
3142 -fno-common) ;;
3143 -fno-signed-zeros) ;;
3144 -fPIC) ;;
3145 -mthumb) ;;
3146 -march=*) ;;
3147 -lz) echo zlib.lib ;;
3148 -lx264) echo libx264.lib ;;
3149 -l*) echo ${flag#-l}.lib ;;
3150 -L*) echo -libpath:${flag#-L} ;;
3151 *) echo $flag ;;
3152 esac
3153 done
3154 }
3155
3156 msvc_flags(){
3157 msvc_common_flags "$@"
3158 for flag; do
3159 case $flag in
3160 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3161 -wd4554 ;;
3162 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3163 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3164 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3165 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3166 esac
3167 done
3168 }
3169
3170 icl_flags(){
3171 msvc_common_flags "$@"
3172 for flag; do
3173 case $flag in
3174 # Despite what Intel's documentation says -Wall, which is supported
3175 # on Windows, does enable remarks so disable them here.
3176 -Wall) echo $flag -Qdiag-disable:remark ;;
3177 -std=c99) echo -Qstd=c99 ;;
3178 esac
3179 done
3180 }
3181
3182 pgi_flags(){
3183 for flag; do
3184 case $flag in
3185 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3186 -fomit-frame-pointer) echo -Mnoframe ;;
3187 -g) echo -gopt ;;
3188 *) echo $flag ;;
3189 esac
3190 done
3191 }
3192
3193 suncc_flags(){
3194 for flag; do
3195 case $flag in
3196 -march=*|-mcpu=*)
3197 case "${flag#*=}" in
3198 native) echo -xtarget=native ;;
3199 v9|niagara) echo -xarch=sparc ;;
3200 ultrasparc) echo -xarch=sparcvis ;;
3201 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3202 i586|pentium) echo -xchip=pentium ;;
3203 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3204 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3205 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3206 pentium4*) echo -xtarget=pentium4 ;;
3207 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3208 *-sse3) echo -xarch=sse3 ;;
3209 core2) echo -xarch=ssse3 -xchip=core2 ;;
3210 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3211 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3212 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3213 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3214 k8|opteron|athlon64|athlon-fx)
3215 echo -xarch=sse2a ;;
3216 athlon*) echo -xarch=pentium_proa ;;
3217 esac
3218 ;;
3219 -std=c99) echo -xc99 ;;
3220 -fomit-frame-pointer) echo -xregs=frameptr ;;
3221 -fPIC) echo -KPIC -xcode=pic32 ;;
3222 -W*,*) echo $flag ;;
3223 -f*-*|-W*|-mimpure-text) ;;
3224 -shared) echo -G ;;
3225 *) echo $flag ;;
3226 esac
3227 done
3228 }
3229
3230 tms470_flags(){
3231 for flag; do
3232 case $flag in
3233 -march=*|-mcpu=*)
3234 case "${flag#*=}" in
3235 armv7-a|cortex-a*) echo -mv=7a8 ;;
3236 armv7-r|cortex-r*) echo -mv=7r4 ;;
3237 armv7-m|cortex-m*) echo -mv=7m3 ;;
3238 armv6*|arm11*) echo -mv=6 ;;
3239 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3240 echo -mv=5e ;;
3241 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3242 esac
3243 ;;
3244 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3245 -mfpu=vfp) echo --float_support=vfpv2 ;;
3246 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3247 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3248 -msoft-float) echo --float_support=vfplib ;;
3249 -O[0-3]|-mf=*) echo $flag ;;
3250 -g) echo -g -mn ;;
3251 -pds=*) echo $flag ;;
3252 -D*|-I*) echo $flag ;;
3253 --gcc|--abi=*) echo $flag ;;
3254 -me) echo $flag ;;
3255 esac
3256 done
3257 }
3258
3259 probe_cc(){
3260 pfx=$1
3261 _cc=$2
3262
3263 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3264 unset _ld_o _ldflags _ld_lib _ld_path
3265 unset _depflags _DEPCMD _DEPFLAGS
3266 _flags_filter=echo
3267
3268 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3269 _type=llvm_gcc
3270 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3271 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3272 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3273 _cflags_speed='-O3'
3274 _cflags_size='-Os'
3275 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3276 _type=gcc
3277 gcc_version=$($_cc --version | head -n1)
3278 gcc_basever=$($_cc -dumpversion)
3279 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3280 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3281 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3282 if ! $_cc -dumpversion | grep -q '^2\.'; then
3283 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3284 fi
3285 _cflags_speed='-O3'
3286 _cflags_size='-Os'
3287 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3288 _type=icc
3289 _ident=$($_cc --version | head -n1)
3290 _depflags='-MMD'
3291 _cflags_speed='-O3'
3292 _cflags_size='-Os'
3293 _cflags_noopt='-O1'
3294 elif $_cc -v 2>&1 | grep -q xlc; then
3295 _type=xlc
3296 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3297 _cflags_speed='-O5'
3298 _cflags_size='-O5 -qcompact'
3299 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3300 _type=ccc
3301 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3302 _DEPFLAGS='-M'
3303 _cflags_speed='-fast'
3304 _cflags_size='-O1'
3305 _flags_filter=ccc_flags
3306 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3307 test -d "$sysroot" || die "No valid sysroot specified."
3308 _type=armcc
3309 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3310 armcc_conf="$PWD/armcc.conf"
3311 $_cc --arm_linux_configure \
3312 --arm_linux_config_file="$armcc_conf" \
3313 --configure_sysroot="$sysroot" \
3314 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3315 die "Error creating armcc configuration file."
3316 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3317 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3318 as_default="${cross_prefix}gcc"
3319 _depflags='-MMD'
3320 _cflags_speed='-O3'
3321 _cflags_size='-Os'
3322 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3323 _type=tms470
3324 _ident=$($_cc -version | head -n1 | tr -s ' ')
3325 _flags='--gcc --abi=eabi -me'
3326 _cc_e='-ppl -fe=$@'
3327 _cc_o='-fe=$@'
3328 _depflags='-ppa -ppd=$(@:.o=.d)'
3329 _cflags_speed='-O3 -mf=5'
3330 _cflags_size='-O3 -mf=2'
3331 _flags_filter=tms470_flags
3332 elif $_cc -v 2>&1 | grep -q clang; then
3333 _type=clang
3334 _ident=$($_cc --version 2>/dev/null | head -n1)
3335 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3336 _cflags_speed='-O3'
3337 _cflags_size='-Os'
3338 elif $_cc -V 2>&1 | grep -q Sun; then
3339 _type=suncc
3340 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3341 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3342 _DEPFLAGS='-xM1 -xc99'
3343 _ldflags='-std=c99'
3344 _cflags_speed='-O5'
3345 _cflags_size='-O5 -xspace'
3346 _flags_filter=suncc_flags
3347 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3348 _type=pathscale
3349 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3350 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3351 _cflags_speed='-O2'
3352 _cflags_size='-Os'
3353 _flags_filter='filter_out -Wdisabled-optimization'
3354 elif $_cc -v 2>&1 | grep -q Open64; then
3355 _type=open64
3356 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3357 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3358 _cflags_speed='-O2'
3359 _cflags_size='-Os'
3360 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3361 elif $_cc -V 2>&1 | grep -q Portland; then
3362 _type=pgi
3363 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3364 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3365 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3366 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3367 _cflags_noopt="-O1"
3368 _flags_filter=pgi_flags
3369 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3370 _type=armasm
3371 _ident=$($_cc | head -n1)
3372 # 4509: "This form of conditional instruction is deprecated"
3373 _flags="-nologo -ignore 4509"
3374 _flags_filter=armasm_flags
3375 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3376 _type=msvc
3377 _ident=$($_cc 2>&1 | head -n1)
3378 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3379 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3380 _cflags_speed="-O2"
3381 _cflags_size="-O1"
3382 _cflags_noopt="-O1"
3383 if $_cc -nologo- 2>&1 | grep -q Linker; then
3384 _ld_o='-out:$@'
3385 else
3386 _ld_o='-Fe$@'
3387 fi
3388 _cc_o='-Fo$@'
3389 _cc_e='-P -Fi$@'
3390 _flags_filter=msvc_flags
3391 _ld_lib='lib%.a'
3392 _ld_path='-libpath:'
3393 _flags='-nologo'
3394 elif $_cc 2>&1 | grep -q Intel; then
3395 _type=icl
3396 _ident=$($_cc 2>&1 | head -n1)
3397 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3398 # Not only is O3 broken on 13.x+ but it is slower on all previous
3399 # versions (tested) as well.
3400 _cflags_speed="-O2"
3401 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3402 if $_cc 2>&1 | grep -q Linker; then
3403 _ld_o='-out:$@'
3404 else
3405 _ld_o='-Fe$@'
3406 fi
3407 _cc_o='-Fo$@'
3408 _cc_e='-P'
3409 _flags_filter=icl_flags
3410 _ld_lib='lib%.a'
3411 _ld_path='-libpath:'
3412 # -Qdiag-error to make icl error when seeing certain unknown arguments
3413 _flags='-nologo -Qdiag-error:4044,10157'
3414 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3415 # with MSVC which enables it by default.
3416 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3417 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3418 # lld can emulate multiple different linkers; in ms link.exe mode,
3419 # the -? parameter gives the help output which contains an identifyable
3420 # string, while it gives an error in other modes.
3421 _type=lld-link
3422 # The link.exe mode doesn't have a switch for getting the version,
3423 # but we can force it back to gnu mode and get the version from there.
3424 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3425 _ld_o='-out:$@'
3426 _flags_filter=msvc_flags
3427 _ld_lib='lib%.a'
3428 _ld_path='-libpath:'
3429 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3430 _type=cparser
3431 _ident=$($_cc --version | head -n1)
3432 _depflags='-MMD'
3433 _cflags_speed='-O4'
3434 _cflags_size='-O2'
3435 _flags_filter=cparser_flags
3436 fi
3437
3438 eval ${pfx}_type=\$_type
3439 eval ${pfx}_ident=\$_ident
3440 }
3441
3442 set_ccvars(){
3443 eval ${1}_C=\${_cc_c-\${${1}_C}}
3444 eval ${1}_E=\${_cc_e-\${${1}_E}}
3445 eval ${1}_O=\${_cc_o-\${${1}_O}}
3446
3447 if [ -n "$_depflags" ]; then
3448 eval ${1}_DEPFLAGS=\$_depflags
3449 else
3450 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3451 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3452 eval DEP${1}FLAGS=\$_flags
3453 fi
3454 }
3455
3456 probe_cc cc "$cc"
3457 cflags_filter=$_flags_filter
3458 cflags_speed=$_cflags_speed
3459 cflags_size=$_cflags_size
3460 cflags_noopt=$_cflags_noopt
3461 add_cflags $_flags $_cflags
3462 cc_ldflags=$_ldflags
3463 set_ccvars CC
3464
3465 probe_cc hostcc "$host_cc"
3466 host_cflags_filter=$_flags_filter
3467 host_cflags_speed=$_cflags_speed
3468 add_host_cflags $_flags $_cflags
3469 set_ccvars HOSTCC
3470
3471 test -n "$cc_type" && enable $cc_type ||
3472 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3473
3474 : ${as_default:=$cc}
3475 : ${objcc_default:=$cc}
3476 : ${dep_cc_default:=$cc}
3477 : ${ld_default:=$cc}
3478 : ${host_ld_default:=$host_cc}
3479 set_default ar as objcc dep_cc ld host_ld
3480
3481 probe_cc as "$as"
3482 asflags_filter=$_flags_filter
3483 add_asflags $_flags $_cflags
3484 set_ccvars AS
3485
3486 probe_cc objcc "$objcc"
3487 objcflags_filter=$_flags_filter
3488 add_objcflags $_flags $_cflags
3489 set_ccvars OBJC
3490
3491 probe_cc ld "$ld"
3492 ldflags_filter=$_flags_filter
3493 add_ldflags $_flags $_ldflags
3494 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3495 LD_O=${_ld_o-$LD_O}
3496 LD_LIB=${_ld_lib-$LD_LIB}
3497 LD_PATH=${_ld_path-$LD_PATH}
3498
3499 probe_cc hostld "$host_ld"
3500 host_ldflags_filter=$_flags_filter
3501 add_host_ldflags $_flags $_ldflags
3502 HOSTLD_O=${_ld_o-$HOSTLD_O}
3503
3504 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3505 probe_cc depcc "$dep_cc"
3506 CCDEP=${_DEPCMD:-$DEPCMD}
3507 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3508 DEPCCFLAGS=$_flags
3509 fi
3510
3511 if $ar 2>&1 | grep -q Microsoft; then
3512 arflags="-nologo"
3513 ar_o='-out:$@'
3514 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3515 arflags="rq"
3516 ar_o='$@'
3517 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3518 arflags='-Xany -r -c'
3519 ar_o='$@'
3520 else
3521 arflags="rc"
3522 ar_o='$@'
3523 fi
3524
3525 add_cflags $extra_cflags
3526 add_objcflags $extra_objcflags
3527 add_asflags $extra_cflags
3528
3529 if test -n "$sysroot"; then
3530 case "$cc_type" in
3531 gcc|llvm_gcc|clang)
3532 add_cppflags --sysroot="$sysroot"
3533 add_ldflags --sysroot="$sysroot"
3534 ;;
3535 tms470)
3536 add_cppflags -I"$sysinclude"
3537 add_ldflags --sysroot="$sysroot"
3538 ;;
3539 esac
3540 fi
3541
3542 if test "$cpu" = host; then
3543 enabled cross_compile &&
3544 die "--cpu=host makes no sense when cross-compiling."
3545
3546 case "$cc_type" in
3547 gcc|llvm_gcc)
3548 check_native(){
3549 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3550 sed -n "/cc1.*$1=/{
3551 s/.*$1=\\([^ ]*\\).*/\\1/
3552 p
3553 q
3554 }" $TMPE
3555 }
3556 cpu=$(check_native -march || check_native -mcpu)
3557 ;;
3558 esac
3559
3560 test "${cpu:-host}" = host &&
3561 die "--cpu=host not supported with compiler $cc"
3562 fi
3563
3564 # Deal with common $arch aliases
3565 case "$arch" in
3566 aarch64|arm64)
3567 arch="aarch64"
3568 ;;
3569 arm*)
3570 arch="arm"
3571 ;;
3572 mips*|IP*)
3573 case "$arch" in
3574 *el)
3575 add_cppflags -EL
3576 add_ldflags -EL
3577 ;;
3578 *eb)
3579 add_cppflags -EB
3580 add_ldflags -EB
3581 ;;
3582 esac
3583 arch="mips"
3584 ;;
3585 parisc*|hppa*)
3586 arch="parisc"
3587 ;;
3588 "Power Macintosh"|ppc*|powerpc*)
3589 arch="ppc"
3590 ;;
3591 s390|s390x)
3592 arch="s390"
3593 ;;
3594 sh4|sh)
3595 arch="sh4"
3596 ;;
3597 sun4u|sparc*)
3598 arch="sparc"
3599 ;;
3600 tilegx|tile-gx)
3601 arch="tilegx"
3602 ;;
3603 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3604 arch="x86"
3605 ;;
3606 esac
3607
3608 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3609 enable $arch
3610
3611 # Add processor-specific flags
3612 if enabled aarch64; then
3613
3614 case $cpu in
3615 armv*)
3616 cpuflags="-march=$cpu"
3617 ;;
3618 *)
3619 cpuflags="-mcpu=$cpu"
3620 ;;
3621 esac
3622
3623 elif enabled alpha; then
3624
3625 cpuflags="-mcpu=$cpu"
3626
3627 elif enabled arm; then
3628
3629 check_arm_arch() {
3630 check_cpp_condition stddef.h \
3631 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3632 $cpuflags
3633 }
3634
3635 probe_arm_arch() {
3636 if check_arm_arch 4; then echo armv4
3637 elif check_arm_arch 4T; then echo armv4t
3638 elif check_arm_arch 5; then echo armv5
3639 elif check_arm_arch 5E; then echo armv5e
3640 elif check_arm_arch 5T; then echo armv5t
3641 elif check_arm_arch 5TE; then echo armv5te
3642 elif check_arm_arch 5TEJ; then echo armv5te
3643 elif check_arm_arch 6; then echo armv6
3644 elif check_arm_arch 6J; then echo armv6j
3645 elif check_arm_arch 6K; then echo armv6k
3646 elif check_arm_arch 6Z; then echo armv6z
3647 elif check_arm_arch 6ZK; then echo armv6zk
3648 elif check_arm_arch 6T2; then echo armv6t2
3649 elif check_arm_arch 7; then echo armv7
3650 elif check_arm_arch 7A 7_A; then echo armv7-a
3651 elif check_arm_arch 7S; then echo armv7-a
3652 elif check_arm_arch 7R 7_R; then echo armv7-r
3653 elif check_arm_arch 7M 7_M; then echo armv7-m
3654 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3655 elif check_arm_arch 8A 8_A; then echo armv8-a
3656 fi
3657 }
3658
3659 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3660
3661 case $cpu in
3662 armv*)
3663 cpuflags="-march=$cpu"
3664 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3665 ;;
3666 *)
3667 cpuflags="-mcpu=$cpu"
3668 case $cpu in
3669 cortex-a*) subarch=armv7a ;;
3670 cortex-r*) subarch=armv7r ;;
3671 cortex-m*) enable thumb; subarch=armv7m ;;
3672 arm11*) subarch=armv6 ;;
3673 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3674 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3675 *) subarch=$(probe_arm_arch) ;;
3676 esac
3677 ;;
3678 esac
3679
3680 case "$subarch" in
3681 armv5t*) enable fast_clz ;;
3682 armv[6-8]*) enable fast_clz fast_unaligned ;;
3683 esac
3684
3685 elif enabled avr32; then
3686
3687 case $cpu in
3688 ap7[02]0[0-2])
3689 subarch="avr32_ap"
3690 cpuflags="-mpart=$cpu"
3691 ;;
3692 ap)
3693 subarch="avr32_ap"
3694 cpuflags="-march=$cpu"
3695 ;;
3696 uc3[ab]*)
3697 subarch="avr32_uc"
3698 cpuflags="-mcpu=$cpu"
3699 ;;
3700 uc)
3701 subarch="avr32_uc"
3702 cpuflags="-march=$cpu"
3703 ;;
3704 esac
3705
3706 elif enabled bfin; then
3707
3708 cpuflags="-mcpu=$cpu"
3709
3710 elif enabled mips; then
3711
3712 cpuflags="-march=$cpu"
3713
3714 elif enabled ppc; then
3715
3716 disable ldbrx
3717
3718 case $(tolower $cpu) in
3719 601|ppc601|powerpc601)
3720 cpuflags="-mcpu=601"
3721 disable altivec
3722 ;;
3723 603*|ppc603*|powerpc603*)
3724 cpuflags="-mcpu=603"
3725 disable altivec
3726 ;;
3727 604*|ppc604*|powerpc604*)
3728 cpuflags="-mcpu=604"
3729 disable altivec
3730 ;;
3731 g3|75*|ppc75*|powerpc75*)
3732 cpuflags="-mcpu=750"
3733 disable altivec
3734 ;;
3735 g4|745*|ppc745*|powerpc745*)
3736 cpuflags="-mcpu=7450"
3737 disable vsx
3738 ;;
3739 74*|ppc74*|powerpc74*)
3740 cpuflags="-mcpu=7400"
3741 disable vsx
3742 ;;
3743 g5|970|ppc970|powerpc970)
3744 cpuflags="-mcpu=970"
3745 disable vsx
3746 ;;
3747 power[3-6]*)
3748 cpuflags="-mcpu=$cpu"
3749 disable vsx
3750 ;;
3751 power[7-8]*)
3752 cpuflags="-mcpu=$cpu"
3753 enable ldbrx
3754 ;;
3755 cell)
3756 cpuflags="-mcpu=cell"
3757 enable ldbrx
3758 disable vsx
3759 ;;
3760 e500mc)
3761 cpuflags="-mcpu=e500mc"
3762 disable altivec
3763 ;;
3764 e500v2)
3765 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3766 disable altivec
3767 disable dcbzl
3768 ;;
3769 e500)
3770 cpuflags="-mcpu=8540 -mhard-float"
3771 disable altivec
3772 disable dcbzl
3773 ;;
3774 esac
3775
3776 elif enabled sparc; then
3777
3778 case $cpu in
3779 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3780 cpuflags="-mcpu=$cpu"
3781 ;;
3782 ultrasparc*|niagara[234])
3783 cpuflags="-mcpu=$cpu"
3784 ;;
3785 esac
3786
3787 elif enabled x86; then
3788
3789 case $cpu in
3790 i[345]86|pentium)
3791 cpuflags="-march=$cpu"
3792 disable i686
3793 disable mmx
3794 ;;
3795 # targets that do NOT support nopl and conditional mov (cmov)
3796 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3797 cpuflags="-march=$cpu"
3798 disable i686
3799 ;;
3800 # targets that do support nopl and conditional mov (cmov)
3801 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3802 cpuflags="-march=$cpu"
3803 enable i686
3804 enable fast_cmov
3805 ;;
3806 # targets that do support conditional mov but on which it's slow
3807 pentium4|pentium4m|prescott|nocona)
3808 cpuflags="-march=$cpu"
3809 enable i686
3810 disable fast_cmov
3811 ;;
3812 esac
3813
3814 fi
3815
3816 if [ "$cpu" != generic ]; then
3817 add_cflags $cpuflags
3818 add_asflags $cpuflags
3819 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3820 fi
3821
3822 # compiler sanity check
3823 check_exec <<EOF
3824 int main(void){ return 0; }
3825 EOF
3826 if test "$?" != 0; then
3827 echo "$cc is unable to create an executable file."
3828 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3829 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3830 echo "Only do this if you know what cross compiling means."
3831 fi
3832 die "C compiler test failed."
3833 fi
3834
3835 add_cppflags -D_ISOC99_SOURCE
3836
3837 # some compilers silently accept -std=c11, so we also need to check that the
3838 # version macro is defined properly
3839 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3840 add_cflags -std=c11 ||
3841 check_cflags -std=c99
3842
3843 check_cppflags -D_FILE_OFFSET_BITS=64
3844 check_cppflags -D_LARGEFILE_SOURCE
3845
3846 add_host_cppflags -D_ISOC99_SOURCE
3847 check_host_cflags -std=c99
3848 check_host_cflags -Wall
3849 check_host_cflags $host_cflags_speed
3850
3851 check_64bit(){
3852 arch32=$1
3853 arch64=$2
3854 expr=$3
3855 check_code cc "" "int test[2*($expr) - 1]" &&
3856 subarch=$arch64 || subarch=$arch32
3857 }
3858
3859 case "$arch" in
3860 aarch64|alpha|ia64)
3861 spic=$shared
3862 ;;
3863 mips)
3864 check_64bit mips mips64 '_MIPS_SIM > 1'
3865 spic=$shared
3866 ;;
3867 parisc)
3868 check_64bit parisc parisc64 'sizeof(void *) > 4'
3869 spic=$shared
3870 ;;
3871 ppc)
3872 check_64bit ppc ppc64 'sizeof(void *) > 4'
3873 spic=$shared
3874 ;;
3875 s390)
3876 check_64bit s390 s390x 'sizeof(void *) > 4'
3877 spic=$shared
3878 ;;
3879 sparc)
3880 check_64bit sparc sparc64 'sizeof(void *) > 4'
3881 spic=$shared
3882 ;;
3883 x86)
3884 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3885 if test "$subarch" = "x86_64"; then
3886 spic=$shared
3887 fi
3888 ;;
3889 esac
3890
3891 enable $subarch
3892 enabled spic && enable_weak pic
3893
3894 enabled x86_64 && objformat=elf64 || objformat="elf32"
3895
3896 # OS specific
3897 case $target_os in
3898 aix)
3899 SHFLAGS=-shared
3900 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3901 enabled shared && add_ldflags -Wl,-brtl
3902 ;;
3903 android)
3904 disable symver
3905 enable section_data_rel_ro
3906 SLIB_INSTALL_NAME='$(SLIBNAME)'
3907 SLIB_INSTALL_LINKS=
3908 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3909 ;;
3910 haiku)
3911 prefix_default="/boot/common"
3912 network_extralibs="-lnetwork"
3913 host_extralibs=
3914 ;;
3915 sunos)
3916 SHFLAGS='-shared -Wl,-h,$$(@F)'
3917 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3918 network_extralibs="-lsocket -lnsl"
3919 # When using suncc to build, the Solaris linker will mark
3920 # an executable with each instruction set encountered by
3921 # the Solaris assembler. As our libraries contain their own
3922 # guards for processor-specific code, instead suppress
3923 # generation of the HWCAPS ELF section on Solaris x86 only.
3924 enabled_all suncc x86 &&
3925 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3926 add_ldflags -Wl,-M,mapfile
3927 nm_default='nm -P -g'
3928 version_script='-M'
3929 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3930 ;;
3931 netbsd)
3932 disable symver
3933 oss_indev_extralibs="-lossaudio"
3934 oss_outdev_extralibs="-lossaudio"
3935 ;;
3936 openbsd|bitrig)
3937 disable symver
3938 SHFLAGS='-shared'
3939 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3940 SLIB_INSTALL_LINKS=
3941 oss_indev_extralibs="-lossaudio"
3942 oss_outdev_extralibs="-lossaudio"
3943 ;;
3944 dragonfly)
3945 disable symver
3946 ;;
3947 freebsd)
3948 ;;
3949 bsd/os)
3950 add_extralibs -lpoll -lgnugetopt
3951 ;;
3952 darwin)
3953 enabled ppc && add_asflags -force_cpusubtype_ALL
3954 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3955 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3956 add_ldflags -Wl,-dynamic,-search_paths_first
3957 check_cflags -Werror=partial-availability
3958 SLIBSUF=".dylib"
3959 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3960 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3961 enabled x86_64 && objformat="macho64" || objformat="macho32"
3962 enabled_any pic shared ||
3963 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3964 check_header dispatch/dispatch.h &&
3965 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3966 ;;
3967 msys*)
3968 die "Native MSYS builds are discouraged, please use the MINGW environment."
3969 ;;
3970 mingw32*|mingw64*)
3971 if test $target_os = "mingw32ce"; then
3972 disable network
3973 else
3974 target_os=mingw32
3975 fi
3976 LIBTARGET=i386
3977 if enabled x86_64; then
3978 LIBTARGET="i386:x86-64"
3979 elif enabled arm; then
3980 LIBTARGET=arm-wince
3981 fi
3982 check_ldflags -Wl,--nxcompat
3983 check_ldflags -Wl,--dynamicbase
3984 shlibdir_default="$bindir_default"
3985 SLIBPREF=""
3986 SLIBSUF=".dll"
3987 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3988 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3989 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3990 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3991 SLIB_INSTALL_LINKS=
3992 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3993 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3994 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3995 enabled x86_64 && objformat="win64" || objformat="win32"
3996 dlltool="${cross_prefix}dlltool"
3997 ranlib=:
3998 enable dos_paths
3999 ;;
4000 win32|win64)
4001 disable symver
4002 if enabled shared; then
4003 # Link to the import library instead of the normal static library
4004 # for shared libs.
4005 LD_LIB='%.lib'
4006 # Cannot build both shared and static libs with MSVC or icl.
4007 disable static
4008 fi
4009 shlibdir_default="$bindir_default"
4010 SLIBPREF=""
4011 SLIBSUF=".dll"
4012 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4013 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4014 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4015 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4016 SLIB_INSTALL_LINKS=
4017 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4018 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4019 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4020 enabled x86_64 && objformat="win64" || objformat="win32"
4021 ranlib=:
4022 enable dos_paths
4023 ;;
4024 cygwin*)
4025 target_os=cygwin
4026 shlibdir_default="$bindir_default"
4027 SLIBPREF="cyg"
4028 SLIBSUF=".dll"
4029 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4030 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4031 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4032 SLIB_INSTALL_LINKS=
4033 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4034 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4035 enabled x86_64 && objformat="win64" || objformat="win32"
4036 enable dos_paths
4037 ;;
4038 *-dos|freedos|opendos)
4039 network_extralibs="-lsocket"
4040 objformat="coff"
4041 enable dos_paths
4042 add_cppflags -U__STRICT_ANSI__
4043 ;;
4044 linux)
4045 enable dv1394
4046 enable section_data_rel_ro
4047 ;;
4048 irix*)
4049 target_os=irix
4050 ranlib="echo ignoring ranlib"
4051 ;;
4052 os/2*)
4053 ln_s="cp -f"
4054 objformat="aout"
4055 add_cppflags -D_GNU_SOURCE
4056 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4057 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4058 LIBSUF="_s.a"
4059 SLIBPREF=""
4060 SLIBSUF=".dll"
4061 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4062 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4063 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4064 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4065 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4066 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4067 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4068 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4069 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4070 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4071 enable dos_paths
4072 ;;
4073 gnu/kfreebsd)
4074 add_cppflags -D_BSD_SOURCE
4075 ;;
4076 gnu)
4077 ;;
4078 qnx)
4079 add_cppflags -D_QNX_SOURCE
4080 network_extralibs="-lsocket"
4081 ;;
4082 symbian)
4083 SLIBSUF=".dll"
4084 enable dos_paths
4085 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4086 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4087 add_ldflags -Wl,--target1-abs,--no-undefined \
4088 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4089 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4090 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4091 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4092 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4093 ;;
4094 osf1)
4095 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4096 ;;
4097 minix)
4098 ;;
4099 none)
4100 ;;
4101 *)
4102 die "Unknown OS '$target_os'."
4103 ;;
4104 esac
4105
4106 # determine libc flavour
4107
4108 probe_libc(){
4109 pfx=$1
4110 pfx_no_=${pfx%_}
4111 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4112 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4113 eval ${pfx}libc_type=uclibc
4114 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4115 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4116 eval ${pfx}libc_type=glibc
4117 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4118 # MinGW headers can be installed on Cygwin, so check for newlib first.
4119 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4120 eval ${pfx}libc_type=newlib
4121 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4122 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4123 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4124 eval ${pfx}libc_type=mingw64
4125 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4126 eval test \$${pfx_no_}cc_type = "gcc" &&
4127 add_${pfx}cppflags -D__printf__=__gnu_printf__
4128 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4129 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4130 eval ${pfx}libc_type=mingw32
4131 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4132 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4133 die "ERROR: MinGW32 runtime version must be >= 3.15."
4134 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4135 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4136 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4137 eval test \$${pfx_no_}cc_type = "gcc" &&
4138 add_${pfx}cppflags -D__printf__=__gnu_printf__
4139 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4140 eval ${pfx}libc_type=msvcrt
4141 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4142 if [ "$pfx" = host_ ]; then
4143 add_host_cppflags -Dsnprintf=_snprintf
4144 else
4145 add_compat strtod.o strtod=avpriv_strtod
4146 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4147 _snprintf=avpriv_snprintf \
4148 vsnprintf=avpriv_vsnprintf
4149 fi
4150 fi
4151 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4152 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4153 # 0x601 by default unless something else is set by the user.
4154 # This can easily lead to us detecting functions only present
4155 # in such new versions and producing binaries requiring windows 7.0.
4156 # Therefore explicitly set the default to XP unless the user has
4157 # set something else on the command line.
4158 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4159 # family. For these cases, configure is free to use any functions
4160 # found in the SDK headers by default. (Alternatively, we could force
4161 # _WIN32_WINNT to 0x0602 in that case.)
4162 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4163 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4164 #ifdef WINAPI_FAMILY
4165 #include <winapifamily.h>
4166 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4167 #error not desktop
4168 #endif
4169 #endif
4170 EOF
4171 if [ "$pfx" = "" ]; then
4172 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4173 fi
4174 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4175 eval ${pfx}libc_type=klibc
4176 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4177 eval ${pfx}libc_type=bionic
4178 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4179 eval ${pfx}libc_type=solaris
4180 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4181 else
4182 eval ${pfx}libc_type=default
4183 add_${pfx}cppflags -D_DEFAULT_SOURCE
4184 fi
4185 }
4186
4187 probe_libc
4188 test -n "$libc_type" && enable libc_$libc_type
4189 probe_libc host_
4190 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4191
4192 # hacks for compiler/libc/os combinations
4193
4194 case $libc_type in
4195 bionic)
4196 add_compat strtod.o strtod=avpriv_strtod
4197 ;;
4198 glibc)
4199 if enabled tms470; then
4200 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4201 add_cppflags -D__USER_LABEL_PREFIX__=
4202 add_cppflags -D__builtin_memset=memset
4203 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4204 add_cflags -pds=48 # incompatible redefinition of macro
4205 elif enabled ccc; then
4206 add_ldflags -Wl,-z,now # calls to libots crash without this
4207 fi
4208 ;;
4209 esac
4210
4211 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4212 add_cppflags '-I\$(SRC_PATH)/compat/float'
4213
4214 esc(){
4215 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4216 }
4217
4218 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4219
4220 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4221
4222 set_default $PATHS_LIST
4223 set_default nm
4224
4225 # we need to build at least one lib type
4226 if ! enabled_any static shared; then
4227 cat <<EOF
4228 At least one library type must be built.
4229 Specify --enable-static to build the static libraries or --enable-shared to
4230 build the shared libraries as well. To only build the shared libraries specify
4231 --disable-static in addition to --enable-shared.
4232 EOF
4233 exit 1
4234 fi
4235
4236 disabled optimizations || check_cflags -fomit-frame-pointer
4237
4238 enable_weak_pic() {
4239 disabled pic && return
4240 enable pic
4241 add_cppflags -DPIC
4242 case "$target_os" in
4243 mingw*|cygwin*)
4244 ;;
4245 *)
4246 add_cflags -fPIC
4247 ;;
4248 esac
4249 add_asflags -fPIC
4250 }
4251
4252 enabled pic && enable_weak_pic
4253
4254 check_cc <<EOF || die "Symbol mangling check failed."
4255 int ff_extern;
4256 EOF
4257 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4258 extern_prefix=${sym%%ff_extern*}
4259
4260 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4261
4262 _restrict=
4263 for restrict_keyword in restrict __restrict__ __restrict; do
4264 check_cc <<EOF && _restrict=$restrict_keyword && break
4265 void foo(char * $restrict_keyword p);
4266 EOF
4267 done
4268
4269 check_cc <<EOF && enable pragma_deprecated
4270 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4271 EOF
4272
4273 check_cc <<EOF && enable attribute_packed
4274 struct { int x; } __attribute__((packed)) x;
4275 EOF
4276
4277 check_cc <<EOF && enable attribute_may_alias
4278 union { int x; } __attribute__((may_alias)) x;
4279 EOF
4280
4281 check_cc <<EOF || die "endian test failed"
4282 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4283 EOF
4284 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4285
4286 check_gas() {
4287 log "check_gas using '$as' as AS"
4288 # :vararg is used on aarch64, arm and ppc altivec
4289 check_as <<EOF || return 1
4290 .macro m n, y:vararg=0
4291 \n: .int \y
4292 .endm
4293 m x
4294 EOF
4295 # .altmacro is only used in arm asm
4296 ! enabled arm || check_as <<EOF || return 1
4297 .altmacro
4298 EOF
4299 enable gnu_as
4300 return 0
4301 }
4302
4303 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4304 nogas=:
4305 enabled_any arm aarch64 && nogas=die
4306 enabled_all ppc altivec && nogas=warn
4307 as_noop=-v
4308
4309 case $as_type in
4310 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4311 gcc) gaspp_as_type=gas ;;
4312 *) gaspp_as_type=$as_type ;;
4313 esac
4314
4315 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4316
4317 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4318 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4319
4320 if ! check_gas ; then
4321 as=${gas:=$as}
4322 check_gas || \
4323 $nogas "GNU assembler not found, install/update gas-preprocessor"
4324 fi
4325
4326 check_as <<EOF && enable as_func
4327 .func test
4328 .endfunc
4329 EOF
4330 fi
4331
4332 check_inline_asm inline_asm_labels '"1:\n"'
4333
4334 if enabled aarch64; then
4335 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4336 # internal assembler in clang 3.3 does not support this instruction
4337 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4338 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4339
4340 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4341
4342 elif enabled alpha; then
4343
4344 check_cflags -mieee
4345
4346 elif enabled arm; then
4347
4348 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4349 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4350 enabled thumb && check_cflags -mthumb || check_cflags -marm
4351
4352 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4353 enable vfp_args
4354 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4355 enable vfp_args
4356 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4357 case "${cross_prefix:-$cc}" in
4358 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4359 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4360 __asm__ (".eabi_attribute 28, 1");
4361 int main(void) { return 0; }
4362 EOF
4363 esac
4364 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4365 fi
4366
4367 enabled a