configure: Do not treat JACK as a system library
[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_safe(){
481 var=$1
482 shift
483 eval $(sanitize_var_name "$var")='$*'
484 }
485
486 get_safe(){
487 eval echo \$$(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_safe(){
526 for var; do
527 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 disable_safe(){
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_safe $header
941 check_cpp "$@" <<EOF && enable_safe $header
942 #include <$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_safe $headers
986 }
987
988 check_cpp_condition(){
989 log check_cpp_condition "$@"
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=$2
1082 shift 2
1083 disable_safe "$type"
1084 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1085 }
1086
1087 check_struct(){
1088 log check_struct "$@"
1089 headers=$1
1090 struct=$2
1091 member=$3
1092 shift 3
1093 disable_safe "${struct}_${member}"
1094 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1095 enable_safe "${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 jack_port_get_latency_range
1642 LoadLibrary
1643 localtime_r
1644 mach_absolute_time
1645 MapViewOfFile
1646 memalign
1647 mkstemp
1648 mmap
1649 mprotect
1650 nanosleep
1651 posix_memalign
1652 sched_getaffinity
1653 SetConsoleTextAttribute
1654 setmode
1655 setrlimit
1656 Sleep
1657 strerror_r
1658 sysconf
1659 sysctl
1660 usleep
1661 VirtualAlloc
1662 "
1663
1664 TOOLCHAIN_FEATURES="
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 audio_frame_queue
1733 audiodsp
1734 blockdsp
1735 bswapdsp
1736 cabac
1737 dirac_parse
1738 dvprofile
1739 faandct
1740 faanidct
1741 fdctdsp
1742 flacdsp
1743 fmtconvert
1744 g722dsp
1745 gmp
1746 golomb
1747 gplv3
1748 h263dsp
1749 h264chroma
1750 h264dsp
1751 h264parse
1752 h264pred
1753 h264qpel
1754 hevc_ps
1755 hpeldsp
1756 huffman
1757 huffyuvdsp
1758 huffyuvencdsp
1759 idctdsp
1760 iirfilter
1761 imdct15
1762 intrax8
1763 iso_media
1764 ividsp
1765 jpegtables
1766 lgplv3
1767 libx262
1768 libxcb_shape
1769 lpc
1770 lzf
1771 me_cmp
1772 mpeg_er
1773 mpegaudio
1774 mpegaudiodsp
1775 mpegaudioheader
1776 mpegvideo
1777 mpegvideoenc
1778 mss34dsp
1779 pixblockdsp
1780 qpeldsp
1781 qsv
1782 qsvdec
1783 qsvenc
1784 rangecoder
1785 riffdec
1786 riffenc
1787 rtpdec
1788 rtpenc_chain
1789 rv34dsp
1790 sinewin
1791 snappy
1792 srtp
1793 startcode
1794 texturedsp
1795 texturedspenc
1796 tpeldsp
1797 vaapi_encode
1798 vc1dsp
1799 videodsp
1800 vp3dsp
1801 vp56dsp
1802 vp8dsp
1803 wma_freqs
1804 wmv2dsp
1805 "
1806
1807 CMDLINE_SELECT="
1808 $ARCH_EXT_LIST
1809 $CONFIG_LIST
1810 $HAVE_LIST_CMDLINE
1811 $THREADS_LIST
1812 asm
1813 cross_compile
1814 debug
1815 extra_warnings
1816 logging
1817 lto
1818 optimizations
1819 rpath
1820 "
1821
1822 PATHS_LIST="
1823 bindir
1824 datadir
1825 docdir
1826 incdir
1827 libdir
1828 mandir
1829 prefix
1830 shlibdir
1831 "
1832
1833 CMDLINE_SET="
1834 $PATHS_LIST
1835 ar
1836 arch
1837 as
1838 cc
1839 objcc
1840 cpu
1841 cross_prefix
1842 custom_allocator
1843 dep_cc
1844 env
1845 extra_version
1846 host_cc
1847 host_cflags
1848 host_extralibs
1849 host_ld
1850 host_ldflags
1851 host_os
1852 ignore_tests
1853 ld
1854 logfile
1855 malloc_prefix
1856 nm
1857 optflags
1858 pkg_config
1859 pkg_config_flags
1860 random_seed
1861 samples
1862 sysinclude
1863 sysroot
1864 target_exec
1865 target_os
1866 target_path
1867 target_samples
1868 toolchain
1869 x86asmexe
1870 "
1871
1872 CMDLINE_APPEND="
1873 extra_cflags
1874 extra_objcflags
1875 host_cppflags
1876 "
1877
1878 # code dependency declarations
1879
1880 # architecture extensions
1881
1882 armv5te_deps="arm"
1883 armv6_deps="arm"
1884 armv6t2_deps="arm"
1885 armv8_deps="aarch64"
1886 neon_deps_any="aarch64 arm"
1887 intrinsics_neon_deps="neon"
1888 vfp_deps_any="aarch64 arm"
1889 vfpv3_deps="vfp"
1890
1891 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1892
1893 altivec_deps="ppc"
1894 ppc4xx_deps="ppc"
1895 vsx_deps="altivec"
1896 power8_deps="vsx"
1897
1898 cpunop_deps="i686"
1899 x86_64_select="i686"
1900 x86_64_suggest="fast_cmov"
1901
1902 amd3dnow_deps="mmx"
1903 amd3dnowext_deps="amd3dnow"
1904 i686_deps="x86"
1905 mmx_deps="x86"
1906 mmxext_deps="mmx"
1907 sse_deps="mmxext"
1908 sse2_deps="sse"
1909 sse3_deps="sse2"
1910 ssse3_deps="sse3"
1911 sse4_deps="ssse3"
1912 sse42_deps="sse4"
1913 avx_deps="sse42"
1914 xop_deps="avx"
1915 fma3_deps="avx"
1916 fma4_deps="avx"
1917 avx2_deps="avx"
1918
1919 mmx_external_deps="x86asm"
1920 mmx_inline_deps="inline_asm"
1921 mmx_suggest="mmx_external mmx_inline"
1922
1923 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1924 eval dep=\$${ext}_deps
1925 eval ${ext}_external_deps='"${dep}_external"'
1926 eval ${ext}_inline_deps='"${dep}_inline"'
1927 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1928 done
1929
1930 aligned_stack_if_any="aarch64 ppc x86"
1931 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1932 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1933 fast_unaligned_if_any="aarch64 ppc x86"
1934 simd_align_16_if_any="altivec neon sse"
1935 simd_align_32_if_any="avx"
1936
1937 # system capabilities
1938 symver_if_any="symver_asm_label symver_gnu_asm"
1939 valgrind_backtrace_conflict="optimizations"
1940 valgrind_backtrace_deps="valgrind_valgrind_h"
1941
1942 # threading support
1943 atomics_gcc_if="sync_val_compare_and_swap"
1944 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1945 atomics_win32_if="MemoryBarrier"
1946 atomics_native_if_any="$ATOMICS_LIST"
1947 w32threads_deps="atomics_native"
1948 threads_if_any="$THREADS_LIST"
1949
1950 # subsystems
1951 dct_select="rdft"
1952 dirac_parse_select="golomb"
1953 error_resilience_select="me_cmp"
1954 faandct_deps="faan fdctdsp"
1955 faanidct_deps="faan idctdsp"
1956 h264dsp_select="startcode"
1957 hevc_ps_select="golomb"
1958 intrax8_select="blockdsp idctdsp"
1959 mdct_select="fft"
1960 rdft_select="fft"
1961 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1962 mpeg_er_select="error_resilience"
1963 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1964 mpegaudiodsp_select="dct"
1965 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1966 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1967 vc1dsp_select="h264chroma qpeldsp startcode"
1968
1969 # decoders / encoders
1970 aac_decoder_select="imdct15 mdct sinewin"
1971 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1972 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1973 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1974 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1975 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1976 adpcm_g722_decoder_select="g722dsp"
1977 adpcm_g722_encoder_select="g722dsp"
1978 aic_decoder_select="golomb idctdsp"
1979 alac_encoder_select="lpc"
1980 als_decoder_select="bswapdsp"
1981 amrnb_decoder_select="lsp"
1982 amrwb_decoder_select="lsp"
1983 amv_decoder_select="sp5x_decoder"
1984 ape_decoder_select="bswapdsp"
1985 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1986 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1987 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1988 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1989 atrac1_decoder_select="mdct sinewin"
1990 atrac3_decoder_select="mdct"
1991 atrac3p_decoder_select="mdct sinewin"
1992 bink_decoder_select="blockdsp hpeldsp"
1993 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1994 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1995 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1996 cllc_decoder_select="bswapdsp"
1997 comfortnoise_encoder_select="lpc"
1998 cook_decoder_select="audiodsp mdct sinewin"
1999 cscd_decoder_select="lzo"
2000 cscd_decoder_suggest="zlib"
2001 dca_decoder_select="fmtconvert mdct"
2002 dds_decoder_select="texturedsp"
2003 dnxhd_decoder_select="blockdsp idctdsp"
2004 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2005 dvvideo_decoder_select="dvprofile idctdsp"
2006 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2007 dxa_decoder_deps="zlib"
2008 dxv_decoder_select="lzf texturedsp"
2009 eac3_decoder_select="ac3_decoder"
2010 eac3_encoder_select="ac3_encoder"
2011 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2012 eatgq_decoder_select="aandcttables idctdsp"
2013 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2014 exr_decoder_deps="zlib"
2015 ffv1_decoder_select="rangecoder"
2016 ffv1_encoder_select="rangecoder"
2017 ffvhuff_decoder_select="huffyuv_decoder"
2018 ffvhuff_encoder_select="huffyuv_encoder"
2019 fic_decoder_select="golomb"
2020 flac_decoder_select="flacdsp"
2021 flac_encoder_select="bswapdsp flacdsp lpc"
2022 flashsv_decoder_deps="zlib"
2023 flashsv_encoder_deps="zlib"
2024 flashsv2_decoder_deps="zlib"
2025 flv_decoder_select="h263_decoder"
2026 flv_encoder_select="h263_encoder"
2027 fourxm_decoder_select="blockdsp bswapdsp"
2028 fraps_decoder_select="bswapdsp huffman"
2029 g2m_decoder_deps="zlib"
2030 g2m_decoder_select="blockdsp idctdsp jpegtables"
2031 h261_decoder_select="mpeg_er mpegvideo"
2032 h261_encoder_select="aandcttables mpegvideoenc"
2033 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2034 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2035 h263i_decoder_select="h263_decoder"
2036 h263p_encoder_select="h263_encoder"
2037 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2038 h264_decoder_suggest="error_resilience"
2039 hap_decoder_select="snappy texturedsp"
2040 hap_encoder_deps="libsnappy"
2041 hap_encoder_select="texturedspenc"
2042 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2043 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2044 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2045 iac_decoder_select="imc_decoder"
2046 imc_decoder_select="bswapdsp fft mdct sinewin"
2047 indeo3_decoder_select="hpeldsp"
2048 indeo4_decoder_select="ividsp"
2049 indeo5_decoder_select="ividsp"
2050 interplay_video_decoder_select="hpeldsp"
2051 jpegls_decoder_select="mjpeg_decoder"
2052 jv_decoder_select="blockdsp"
2053 lagarith_decoder_select="huffyuvdsp"
2054 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2055 magicyuv_decoder_select="huffyuvdsp"
2056 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2057 metasound_decoder_select="lsp mdct sinewin"
2058 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2059 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2060 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2061 mjpegb_decoder_select="mjpeg_decoder"
2062 mlp_decoder_select="mlp_parser"
2063 motionpixels_decoder_select="bswapdsp"
2064 mp1_decoder_select="mpegaudio"
2065 mp1float_decoder_select="mpegaudio"
2066 mp2_decoder_select="mpegaudio"
2067 mp2float_decoder_select="mpegaudio"
2068 mp3_decoder_select="mpegaudio"
2069 mp3adu_decoder_select="mpegaudio"
2070 mp3adufloat_decoder_select="mpegaudio"
2071 mp3float_decoder_select="mpegaudio"
2072 mp3on4_decoder_select="mpegaudio"
2073 mp3on4float_decoder_select="mpegaudio"
2074 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2075 mpc8_decoder_select="mpegaudiodsp"
2076 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2077 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2078 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2079 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2080 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2081 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2082 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2083 mpeg4_encoder_select="h263_encoder"
2084 msa1_decoder_select="mss34dsp"
2085 msmpeg4v1_decoder_select="h263_decoder"
2086 msmpeg4v2_decoder_select="h263_decoder"
2087 msmpeg4v2_encoder_select="h263_encoder"
2088 msmpeg4v3_decoder_select="h263_decoder"
2089 msmpeg4v3_encoder_select="h263_encoder"
2090 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2091 mts2_decoder_select="mss34dsp"
2092 mxpeg_decoder_select="mjpeg_decoder"
2093 nellymoser_decoder_select="mdct sinewin"
2094 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2095 nuv_decoder_select="idctdsp lzo"
2096 on2avc_decoder_select="mdct"
2097 opus_decoder_deps="avresample"
2098 opus_decoder_select="imdct15"
2099 png_decoder_deps="zlib"
2100 png_encoder_deps="zlib"
2101 png_encoder_select="huffyuvencdsp"
2102 prores_decoder_select="idctdsp"
2103 prores_encoder_select="fdctdsp"
2104 qcelp_decoder_select="lsp"
2105 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2106 ra_144_encoder_select="audio_frame_queue lpc"
2107 ralf_decoder_select="golomb"
2108 rscc_decoder_deps="zlib"
2109 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2110 rv10_encoder_select="h263_encoder"
2111 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2112 rv20_encoder_select="h263_encoder"
2113 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2114 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2115 screenpresso_decoder_deps="zlib"
2116 sipr_decoder_select="lsp"
2117 sp5x_decoder_select="mjpeg_decoder"
2118 svq1_decoder_select="hpeldsp"
2119 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2120 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2121 svq3_decoder_suggest="zlib"
2122 tak_decoder_select="audiodsp"
2123 tdsc_decoder_deps="zlib"
2124 tdsc_decoder_select="mjpeg_decoder"
2125 theora_decoder_select="vp3_decoder"
2126 thp_decoder_select="mjpeg_decoder"
2127 tiff_decoder_suggest="zlib"
2128 tiff_encoder_suggest="zlib"
2129 truehd_decoder_select="mlp_decoder"
2130 truemotion2_decoder_select="bswapdsp"
2131 truespeech_decoder_select="bswapdsp"
2132 tscc_decoder_deps="zlib"
2133 txd_decoder_select="texturedsp"
2134 twinvq_decoder_select="mdct lsp sinewin"
2135 utvideo_decoder_select="bswapdsp"
2136 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2137 vble_decoder_select="huffyuvdsp"
2138 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2139 vc1image_decoder_select="vc1_decoder"
2140 vorbis_decoder_select="mdct"
2141 vorbis_encoder_select="mdct"
2142 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2143 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2144 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2145 vp6a_decoder_select="vp6_decoder"
2146 vp6f_decoder_select="vp6_decoder"
2147 vp7_decoder_select="h264pred videodsp vp8dsp"
2148 vp8_decoder_select="h264pred videodsp vp8dsp"
2149 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2150 webp_decoder_select="vp8_decoder"
2151 wmapro_decoder_select="mdct sinewin wma_freqs"
2152 wmav1_decoder_select="mdct sinewin wma_freqs"
2153 wmav1_encoder_select="mdct sinewin wma_freqs"
2154 wmav2_decoder_select="mdct sinewin wma_freqs"
2155 wmav2_encoder_select="mdct sinewin wma_freqs"
2156 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2157 wmv1_decoder_select="h263_decoder"
2158 wmv1_encoder_select="h263_encoder"
2159 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2160 wmv2_encoder_select="h263_encoder wmv2dsp"
2161 wmv3_decoder_select="vc1_decoder"
2162 wmv3image_decoder_select="wmv3_decoder"
2163 zerocodec_decoder_deps="zlib"
2164 zlib_decoder_deps="zlib"
2165 zlib_encoder_deps="zlib"
2166 zmbv_decoder_deps="zlib"
2167 zmbv_encoder_deps="zlib"
2168
2169 # hardware accelerators
2170 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2171 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2172 dxva2_lib_deps="dxva2"
2173 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2174 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2175
2176 h263_vaapi_hwaccel_deps="vaapi"
2177 h263_vaapi_hwaccel_select="h263_decoder"
2178 h264_d3d11va_hwaccel_deps="d3d11va"
2179 h264_d3d11va_hwaccel_select="h264_decoder"
2180 h264_dxva2_hwaccel_deps="dxva2"
2181 h264_dxva2_hwaccel_select="h264_decoder"
2182 h264_mmal_hwaccel_deps="mmal"
2183 h264_qsv_hwaccel_deps="libmfx"
2184 h264_vaapi_hwaccel_deps="vaapi"
2185 h264_vaapi_hwaccel_select="h264_decoder"
2186 h264_vda_hwaccel_deps="vda"
2187 h264_vda_hwaccel_select="h264_decoder"
2188 h264_vda_old_hwaccel_deps="vda"
2189 h264_vda_old_hwaccel_select="h264_decoder"
2190 h264_vdpau_hwaccel_deps="vdpau"
2191 h264_vdpau_hwaccel_select="h264_decoder"
2192 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2193 hevc_d3d11va_hwaccel_select="hevc_decoder"
2194 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2195 hevc_dxva2_hwaccel_select="hevc_decoder"
2196 hevc_qsv_hwaccel_deps="libmfx"
2197 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2198 hevc_vaapi_hwaccel_select="hevc_decoder"
2199 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2200 hevc_vdpau_hwaccel_select="hevc_decoder"
2201 mpeg1_vdpau_hwaccel_deps="vdpau"
2202 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2203 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2204 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2205 mpeg2_dxva2_hwaccel_deps="dxva2"
2206 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2207 mpeg2_mmal_hwaccel_deps="mmal"
2208 mpeg2_qsv_hwaccel_deps="libmfx"
2209 mpeg2_vaapi_hwaccel_deps="vaapi"
2210 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2211 mpeg2_vdpau_hwaccel_deps="vdpau"
2212 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2213 mpeg4_vaapi_hwaccel_deps="vaapi"
2214 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2215 mpeg4_vdpau_hwaccel_deps="vdpau"
2216 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2217 vc1_d3d11va_hwaccel_deps="d3d11va"
2218 vc1_d3d11va_hwaccel_select="vc1_decoder"
2219 vc1_dxva2_hwaccel_deps="dxva2"
2220 vc1_dxva2_hwaccel_select="vc1_decoder"
2221 vc1_mmal_hwaccel_deps="mmal"
2222 vc1_qsv_hwaccel_deps="libmfx"
2223 vc1_vaapi_hwaccel_deps="vaapi"
2224 vc1_vaapi_hwaccel_select="vc1_decoder"
2225 vc1_vdpau_hwaccel_deps="vdpau"
2226 vc1_vdpau_hwaccel_select="vc1_decoder"
2227 vp8_qsv_hwaccel_deps="libmfx"
2228 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2229 vp8_vaapi_hwaccel_select="vp8_decoder"
2230 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2231 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2232 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2233 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2234
2235 # hardware-accelerated codecs
2236 nvenc_deps_any="libdl LoadLibrary"
2237 omx_deps="libdl pthreads"
2238 omx_rpi_select="omx"
2239 qsvdec_select="qsv"
2240 qsvenc_select="qsv"
2241 vaapi_encode_deps="vaapi"
2242
2243 hwupload_cuda_filter_deps="cuda"
2244 scale_npp_filter_deps="cuda libnpp"
2245
2246 h264_mmal_decoder_deps="mmal"
2247 h264_nvenc_encoder_deps="nvenc"
2248 h264_omx_encoder_deps="omx"
2249 h264_qsv_decoder_deps="libmfx"
2250 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2251 h264_qsv_encoder_deps="libmfx"
2252 h264_qsv_encoder_select="qsvenc"
2253 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2254 h264_vaapi_encoder_select="vaapi_encode golomb"
2255 hevc_nvenc_encoder_deps="nvenc"
2256 hevc_qsv_decoder_deps="libmfx"
2257 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2258 hevc_qsv_encoder_deps="libmfx"
2259 hevc_qsv_encoder_select="hevc_ps qsvenc"
2260 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2261 hevc_vaapi_encoder_select="vaapi_encode golomb"
2262 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2263 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2264 mpeg2_mmal_decoder_deps="mmal"
2265 mpeg2_qsv_decoder_deps="libmfx"
2266 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2267 mpeg2_qsv_encoder_deps="libmfx"
2268 mpeg2_qsv_encoder_select="qsvenc"
2269 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2270 mpeg2_vaapi_encoder_select="vaapi_encode"
2271 mpeg4_omx_encoder_deps="omx"
2272 vc1_mmal_decoder_deps="mmal"
2273 vc1_qsv_decoder_deps="libmfx"
2274 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2275 vp8_qsv_decoder_deps="libmfx"
2276 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2277 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2278 vp8_vaapi_encoder_select="vaapi_encode"
2279
2280 nvenc_h264_encoder_select="h264_nvenc_encoder"
2281 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2282
2283 # parsers
2284 h264_parser_select="golomb h264dsp h264parse"
2285 hevc_parser_select="hevc_ps"
2286 mpegaudio_parser_select="mpegaudioheader"
2287 mpegvideo_parser_select="mpegvideo"
2288 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2289 vc1_parser_select="vc1dsp"
2290
2291 # bitstream_filters
2292 mjpeg2jpeg_bsf_select="jpegtables"
2293
2294 # external libraries
2295 avisynth_deps="LoadLibrary"
2296 avxsynth_deps="libdl"
2297 avisynth_demuxer_deps_any="avisynth avxsynth"
2298 avisynth_demuxer_select="riffdec"
2299 libdcadec_decoder_deps="libdcadec"
2300 libfaac_encoder_deps="libfaac"
2301 libfaac_encoder_select="audio_frame_queue"
2302 libfdk_aac_decoder_deps="libfdk_aac"
2303 libfdk_aac_encoder_deps="libfdk_aac"
2304 libfdk_aac_encoder_select="audio_frame_queue"
2305 libgsm_decoder_deps="libgsm"
2306 libgsm_encoder_deps="libgsm"
2307 libgsm_ms_decoder_deps="libgsm"
2308 libgsm_ms_encoder_deps="libgsm"
2309 libilbc_decoder_deps="libilbc"
2310 libilbc_encoder_deps="libilbc"
2311 libkvazaar_encoder_deps="libkvazaar"
2312 libmp3lame_encoder_deps="libmp3lame"
2313 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2314 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2315 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2316 libopencore_amrnb_encoder_select="audio_frame_queue"
2317 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2318 libopenh264_decoder_deps="libopenh264"
2319 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2320 libopenh264_encoder_deps="libopenh264"
2321 libopenjpeg_decoder_deps="libopenjpeg"
2322 libopenjpeg_encoder_deps="libopenjpeg"
2323 libopus_decoder_deps="libopus"
2324 libopus_encoder_deps="libopus"
2325 libopus_encoder_select="audio_frame_queue"
2326 libschroedinger_decoder_deps="libschroedinger"
2327 libschroedinger_encoder_deps="libschroedinger"
2328 libspeex_decoder_deps="libspeex"
2329 libspeex_encoder_deps="libspeex"
2330 libspeex_encoder_select="audio_frame_queue"
2331 libtheora_encoder_deps="libtheora"
2332 libtwolame_encoder_deps="libtwolame"
2333 libvo_aacenc_encoder_deps="libvo_aacenc"
2334 libvo_aacenc_encoder_select="audio_frame_queue"
2335 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2336 libvorbis_encoder_deps="libvorbis"
2337 libvorbis_encoder_select="audio_frame_queue"
2338 libvpx_vp8_decoder_deps="libvpx"
2339 libvpx_vp8_encoder_deps="libvpx"
2340 libvpx_vp9_decoder_deps="libvpx"
2341 libvpx_vp9_encoder_deps="libvpx"
2342 libwavpack_encoder_deps="libwavpack"
2343 libwavpack_encoder_select="audio_frame_queue"
2344 libwebp_encoder_deps="libwebp"
2345 libx262_encoder_deps="libx262"
2346 libx264_encoder_deps="libx264"
2347 libx265_encoder_deps="libx265"
2348 libxavs_encoder_deps="libxavs"
2349 libxvid_encoder_deps="libxvid mkstemp"
2350
2351 # demuxers / muxers
2352 ac3_demuxer_select="ac3_parser"
2353 asf_demuxer_select="riffdec"
2354 asf_muxer_select="riffenc"
2355 asf_stream_muxer_select="asf_muxer"
2356 avi_demuxer_select="iso_media riffdec"
2357 avi_muxer_select="riffenc"
2358 caf_demuxer_select="iso_media riffdec"
2359 dash_muxer_select="mp4_muxer"
2360 dirac_demuxer_select="dirac_parser"
2361 dv_demuxer_select="dvprofile"
2362 dv_muxer_select="dvprofile"
2363 dxa_demuxer_select="riffdec"
2364 eac3_demuxer_select="ac3_parser"
2365 f4v_muxer_select="mov_muxer"
2366 flac_demuxer_select="flac_parser"
2367 hds_muxer_select="flv_muxer"
2368 hls_muxer_select="mpegts_muxer"
2369 ipod_muxer_select="mov_muxer"
2370 ismv_muxer_select="mov_muxer"
2371 matroska_audio_muxer_select="matroska_muxer"
2372 matroska_demuxer_select="iso_media riffdec"
2373 matroska_demuxer_suggest="bzlib lzo zlib"
2374 matroska_muxer_select="iso_media riffenc"
2375 mmf_muxer_select="riffenc"
2376 mov_demuxer_select="iso_media riffdec"
2377 mov_demuxer_suggest="zlib"
2378 mov_muxer_select="iso_media riffenc rtpenc_chain"
2379 mp3_demuxer_select="mpegaudio_parser"
2380 mp3_muxer_select="mpegaudioheader"
2381 mp4_muxer_select="mov_muxer"
2382 mpegts_demuxer_select="iso_media"
2383 mpegts_muxer_select="adts_muxer latm_muxer"
2384 mpegtsraw_demuxer_select="mpegts_demuxer"
2385 mxf_d10_muxer_select="mxf_muxer"
2386 nut_muxer_select="riffenc"
2387 nuv_demuxer_select="riffdec"
2388 oga_muxer_select="ogg_muxer"
2389 ogg_demuxer_select="dirac_parse"
2390 opus_muxer_select="ogg_muxer"
2391 psp_muxer_select="mov_muxer"
2392 rtp_demuxer_select="sdp_demuxer"
2393 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2394 rtsp_demuxer_select="http_protocol rtpdec"
2395 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2396 sap_demuxer_select="sdp_demuxer"
2397 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2398 sdp_demuxer_select="rtpdec"
2399 smoothstreaming_muxer_select="ismv_muxer"
2400 spdif_muxer_select="aac_parser"
2401 spx_muxer_select="ogg_muxer"
2402 swf_demuxer_suggest="zlib"
2403 tak_demuxer_select="tak_parser"
2404 tg2_muxer_select="mov_muxer"
2405 tgp_muxer_select="mov_muxer"
2406 w64_demuxer_select="wav_demuxer"
2407 wav_demuxer_select="riffdec"
2408 wav_muxer_select="riffenc"
2409 webm_muxer_select="iso_media riffenc"
2410 wtv_demuxer_select="mpegts_demuxer riffdec"
2411 xmv_demuxer_select="riffdec"
2412 xwma_demuxer_select="riffdec"
2413
2414 # indevs / outdevs
2415 alsa_indev_deps="alsa"
2416 alsa_outdev_deps="alsa"
2417 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2418 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2419 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2420 dv1394_indev_deps="dv1394"
2421 dv1394_indev_select="dv_demuxer"
2422 fbdev_indev_deps="linux_fb_h"
2423 jack_indev_deps="libjack"
2424 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2425 libcdio_indev_deps="libcdio"
2426 libdc1394_indev_deps="libdc1394"
2427 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2428 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2429 pulse_indev_deps="libpulse"
2430 sndio_indev_deps="sndio"
2431 sndio_outdev_deps="sndio"
2432 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2433 vfwcap_indev_deps="vfw32 vfwcap_defines"
2434 xcbgrab_indev_deps="libxcb libxcb_shape"
2435 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2436
2437 # protocols
2438 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2439 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2440 ffrtmpcrypt_protocol_select="tcp_protocol"
2441 ffrtmphttp_protocol_conflict="librtmp_protocol"
2442 ffrtmphttp_protocol_select="http_protocol"
2443 gopher_protocol_select="network"
2444 http_protocol_select="tcp_protocol"
2445 httpproxy_protocol_select="tcp_protocol"
2446 https_protocol_select="tls_protocol"
2447 icecast_protocol_select="http_protocol"
2448 librtmp_protocol_deps="librtmp"
2449 librtmpe_protocol_deps="librtmp"
2450 librtmps_protocol_deps="librtmp"
2451 librtmpt_protocol_deps="librtmp"
2452 librtmpte_protocol_deps="librtmp"
2453 mmsh_protocol_select="http_protocol"
2454 mmst_protocol_select="network"
2455 rtmp_protocol_conflict="librtmp_protocol"
2456 rtmp_protocol_select="tcp_protocol"
2457 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2458 rtmps_protocol_conflict="librtmp_protocol"
2459 rtmps_protocol_select="tls_protocol"
2460 rtmpt_protocol_select="ffrtmphttp_protocol"
2461 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2462 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2463 rtp_protocol_select="udp_protocol"
2464 sctp_protocol_deps="struct_sctp_event_subscribe"
2465 sctp_protocol_select="network"
2466 srtp_protocol_select="rtp_protocol srtp"
2467 tcp_protocol_select="network"
2468 tls_gnutls_protocol_deps="gnutls"
2469 tls_gnutls_protocol_select="tcp_protocol"
2470 tls_openssl_protocol_conflict="tls_gnutls_protocol"
2471 tls_openssl_protocol_deps="openssl"
2472 tls_openssl_protocol_select="tcp_protocol"
2473 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2474 udp_protocol_select="network"
2475 unix_protocol_deps="sys_un_h"
2476 unix_protocol_select="network"
2477
2478 # filters
2479 asyncts_filter_deps="avresample"
2480 blackframe_filter_deps="gpl"
2481 boxblur_filter_deps="gpl"
2482 bs2b_filter_deps="libbs2b"
2483 cropdetect_filter_deps="gpl"
2484 deinterlace_qsv_filter_deps="libmfx"
2485 deinterlace_vaapi_filter_deps="vaapi"
2486 delogo_filter_deps="gpl"
2487 drawtext_filter_deps="libfreetype"
2488 drawtext_filter_suggest="libfontconfig"
2489 frei0r_filter_deps="frei0r libdl"
2490 frei0r_src_filter_deps="frei0r libdl"
2491 hdcd_filter_deps="libhdcd"
2492 hqdn3d_filter_deps="gpl"
2493 interlace_filter_deps="gpl"
2494 movie_filter_deps="avcodec avformat"
2495 ocv_filter_deps="libopencv"
2496 resample_filter_deps="avresample"
2497 scale_filter_deps="swscale"
2498 scale_qsv_filter_deps="libmfx"
2499 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2500
2501 # examples
2502 decode_audio_example_deps="avcodec avutil"
2503 decode_video_example_deps="avcodec avutil"
2504 encode_audio_example_deps="avcodec avutil"
2505 encode_video_example_deps="avcodec avutil"
2506 filter_audio_example_deps="avfilter avutil"
2507 metadata_example_deps="avformat avutil"
2508 output_example_deps="avcodec avformat avresample avutil swscale"
2509 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2510 transcode_aac_example_deps="avcodec avformat avresample"
2511
2512 # EXTRALIBS_LIST
2513 cpu_init_extralibs="pthreads_extralibs"
2514 cws2fws_extralibs="zlib_extralibs"
2515
2516 # libraries, in linking order
2517 avcodec_deps="avutil"
2518 avcodec_select="null_bsf"
2519 avdevice_deps="avformat avcodec avutil"
2520 avfilter_deps="avutil"
2521 avformat_deps="avcodec avutil"
2522 avformat_suggest="network"
2523 avresample_deps="avutil"
2524 swscale_deps="avutil"
2525
2526 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2527 avdevice_extralibs="libm_extralibs"
2528 avformat_extralibs="libm_extralibs"
2529 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2530 avresample_extralibs="libm_extralibs"
2531 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"
2532 swscale_extralibs="libm_extralibs"
2533
2534 # programs
2535 avconv_deps="avcodec avfilter avformat avresample swscale"
2536 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2537 fps_filter null_filter resample_filter scale_filter
2538 trim_filter"
2539 avconv_suggest="dxva2_lib ole32 psapi shell32"
2540 avplay_deps="avcodec avfilter avformat avresample sdl"
2541 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2542 avplay_suggest="shell32"
2543 avprobe_deps="avcodec avformat"
2544 avprobe_suggest="shell32"
2545
2546 # documentation
2547 pod2man_deps="doc"
2548 texi2html_deps="doc"
2549
2550 # default parameters
2551
2552 logfile="avbuild/config.log"
2553
2554 # installation paths
2555 prefix_default="/usr/local"
2556 bindir_default='${prefix}/bin'
2557 datadir_default='${prefix}/share/avconv'
2558 docdir_default='${prefix}/share/doc/libav'
2559 incdir_default='${prefix}/include'
2560 libdir_default='${prefix}/lib'
2561 mandir_default='${prefix}/share/man'
2562 shlibdir_default="$libdir_default"
2563
2564 # toolchain
2565 ar_default="ar"
2566 cc_default="gcc"
2567 host_cc_default="gcc"
2568 x86asmexe_default="nasm"
2569 ln_s="ln -s -f"
2570 nm_default="nm -g"
2571 pkg_config_default=pkg-config
2572 ranlib="ranlib"
2573 strip="strip"
2574 version_script='--version-script'
2575
2576 # machine
2577 arch_default=$(uname -m)
2578 cpu="generic"
2579 intrinsics="none"
2580
2581 # OS
2582 target_os_default=$(tolower $(uname -s))
2583 host_os=$target_os_default
2584
2585 # configurable options
2586 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2587
2588 enable asm
2589 enable debug
2590 enable doc
2591 enable faan faandct faanidct
2592 enable optimizations
2593 enable safe_bitstream_reader
2594 enable static
2595 enable swscale_alpha
2596 enable valgrind_backtrace
2597
2598 # By default, enable only those hwaccels that have no external dependencies.
2599 enable d3d11va dxva2 vda vdpau
2600
2601 # internal components are enabled by default
2602 enable $EXTRALIBS_LIST
2603
2604 # Avoid external, non-system, libraries getting enabled by dependency resolution
2605 disable $EXTERNAL_LIBRARY_LIST
2606
2607 # build settings
2608 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2609 LIBPREF="lib"
2610 LIBSUF=".a"
2611 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2612 SLIBPREF="lib"
2613 SLIBSUF=".so"
2614 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2615 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2616 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2617 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2618 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2619 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2620 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2621
2622 asflags_filter=echo
2623 cflags_filter=echo
2624 ldflags_filter=echo
2625
2626 AS_C='-c'
2627 AS_O='-o $@'
2628 CC_C='-c'
2629 CC_E='-E -o $@'
2630 CC_O='-o $@'
2631 OBJCC_C='-c'
2632 OBJCC_E='-E -o $@'
2633 OBJCC_O='-o $@'
2634 X86ASM_O='-o $@'
2635 LD_O='-o $@'
2636 LD_LIB='-l%'
2637 LD_PATH='-L'
2638 HOSTCC_C='-c'
2639 HOSTCC_E='-E -o $@'
2640 HOSTCC_O='-o $@'
2641 HOSTLD_O='-o $@'
2642
2643 host_extralibs='-lm'
2644 host_cflags_filter=echo
2645 host_ldflags_filter=echo
2646
2647 target_path='$(CURDIR)'
2648
2649 # since the object filename is not given with the -MM flag, the compiler
2650 # is only able to print the basename, and we must add the path ourselves
2651 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2652 DEPFLAGS='-MM'
2653
2654 mkdir -p avbuild
2655
2656 # find source path
2657 if test -f configure; then
2658 source_path=.
2659 else
2660 source_path=$(cd $(dirname "$0"); pwd)
2661 echo "$source_path" | grep -q '[[:blank:]]' &&
2662 die "Out of tree builds are impossible with whitespace in source path."
2663 test -e "$source_path/config.h" &&
2664 die "Out of tree builds are impossible with config.h in source dir."
2665 fi
2666
2667 for v in "$@"; do
2668 r=${v#*=}
2669 l=${v%"$r"}
2670 r=$(sh_quote "$r")
2671 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2672 done
2673
2674 find_things(){
2675 thing=$1
2676 pattern=$2
2677 file=$source_path/$3
2678 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2679 }
2680
2681 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2682 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2683 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2684 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2685 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2686 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2687 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2688 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2689 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2690
2691 find_things_extern(){
2692 thing=$1
2693 pattern=$2
2694 file=$source_path/$3
2695 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2696 }
2697
2698 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2699 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2700
2701 AVCODEC_COMPONENTS_LIST="
2702 $BSF_LIST
2703 $DECODER_LIST
2704 $ENCODER_LIST
2705 $HWACCEL_LIST
2706 $PARSER_LIST
2707 "
2708
2709 AVDEVICE_COMPONENTS_LIST="
2710 $INDEV_LIST
2711 $OUTDEV_LIST
2712 "
2713
2714 AVFILTER_COMPONENTS_LIST="
2715 $FILTER_LIST
2716 "
2717
2718 AVFORMAT_COMPONENTS_LIST="
2719 $DEMUXER_LIST
2720 $MUXER_LIST
2721 $PROTOCOL_LIST
2722 "
2723
2724 ALL_COMPONENTS="
2725 $AVCODEC_COMPONENTS_LIST
2726 $AVDEVICE_COMPONENTS_LIST
2727 $AVFILTER_COMPONENTS_LIST
2728 $AVFORMAT_COMPONENTS_LIST
2729 "
2730
2731 for n in $COMPONENT_LIST; do
2732 v=$(toupper ${n%s})_LIST
2733 eval enable \$$v
2734 eval ${n}_if_any="\$$v"
2735 done
2736
2737 enable $ARCH_EXT_LIST
2738
2739 die_unknown(){
2740 echo "Unknown option \"$1\"."
2741 echo "See $0 --help for available options."
2742 exit 1
2743 }
2744
2745 print_3_columns() {
2746 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2747 }
2748
2749 show_list() {
2750 suffix=_$1
2751 shift
2752 echo $* | sed s/$suffix//g | print_3_columns
2753 exit 0
2754 }
2755
2756 rand_list(){
2757 IFS=', '
2758 set -- $*
2759 unset IFS
2760 for thing; do
2761 comp=${thing%:*}
2762 prob=${thing#$comp}
2763 prob=${prob#:}
2764 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2765 echo "prob ${prob:-0.5}"
2766 printf '%s\n' $comp
2767 done
2768 }
2769
2770 do_random(){
2771 action=$1
2772 shift
2773 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2774 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2775 }
2776
2777 for opt do
2778 optval="${opt#*=}"
2779 case "$opt" in
2780 --extra-ldflags=*)
2781 add_ldflags $optval
2782 ;;
2783 --extra-ldexeflags=*)
2784 add_ldexeflags $optval
2785 ;;
2786 --extra-libs=*)
2787 add_extralibs $optval
2788 ;;
2789 --disable-devices)
2790 disable $INDEV_LIST $OUTDEV_LIST
2791 ;;
2792 --enable-debug=*)
2793 debuglevel="$optval"
2794 ;;
2795 --disable-programs)
2796 disable $PROGRAM_LIST
2797 ;;
2798 --disable-everything)
2799 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2800 ;;
2801 --disable-all)
2802 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2803 disable $LIBRARY_LIST $PROGRAM_LIST doc
2804 ;;
2805 --enable-random|--disable-random)
2806 action=${opt%%-random}
2807 do_random ${action#--} $COMPONENT_LIST
2808 ;;
2809 --enable-random=*|--disable-random=*)
2810 action=${opt%%-random=*}
2811 do_random ${action#--} $optval
2812 ;;
2813 --enable-*=*|--disable-*=*)
2814 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2815 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2816 eval list=\$$(toupper $thing)_LIST
2817 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2818 $action $(filter "$name" $list)
2819 ;;
2820 --enable-avserver|--disable-avserver*)
2821 warn "avserver has been removed, the ${opt} option is only"\
2822 "provided for compatibility and will be removed in the future"
2823 ;;
2824 --enable-yasm|--disable-yasm)
2825 warn "The ${opt} option is only provided for compatibility and will be\n"\
2826 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2827 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2828 ;;
2829 --enable-?*|--disable-?*)
2830 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2831 if is_in $option $COMPONENT_LIST; then
2832 test $action = disable && action=unset
2833 eval $action \$$(toupper ${option%s})_LIST
2834 elif is_in $option $CMDLINE_SELECT; then
2835 $action $option
2836 else
2837 die_unknown $opt
2838 fi
2839 ;;
2840 --list-*)
2841 NAME="${opt#--list-}"
2842 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2843 NAME=${NAME%s}
2844 eval show_list $NAME \$$(toupper $NAME)_LIST
2845 ;;
2846 --help|-h) show_help
2847 ;;
2848 --quiet|-q) quiet=yes
2849 ;;
2850 *)
2851 optname="${opt%%=*}"
2852 optname="${optname#--}"
2853 optname=$(echo "$optname" | sed 's/-/_/g')
2854 if is_in $optname $CMDLINE_SET; then
2855 eval $optname='$optval'
2856 elif is_in $optname $CMDLINE_APPEND; then
2857 append $optname "$optval"
2858 else
2859 die_unknown $opt
2860 fi
2861 ;;
2862 esac
2863 done
2864
2865 for e in $env; do
2866 eval "export $e"
2867 done
2868
2869 disabled logging && logfile=/dev/null
2870
2871 # Die early if licensing-related configure options are incompatible.
2872 die_license_disabled() {
2873 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2874 }
2875
2876 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2877 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2878 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2879
2880 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2881
2882 # Disable all the library-specific components if the library itself
2883 # is disabled, see AVCODEC_LIST and following _LIST variables.
2884
2885 disable_components(){
2886 disabled ${1} && disable $(
2887 eval components="\$$(toupper ${1})_COMPONENTS"
2888 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2889 )
2890 }
2891
2892 map 'disable_components $v' $LIBRARY_LIST
2893
2894 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2895 set >> $logfile
2896
2897 case "$toolchain" in
2898 *-asan)
2899 cc_default="${toolchain%-asan}"
2900 add_cflags -fsanitize=address
2901 add_ldflags -fsanitize=address
2902 ;;
2903 *-msan)
2904 cc_default="${toolchain%-msan}"
2905 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2906 add_ldflags -fsanitize=memory
2907 ;;
2908 *-tsan)
2909 cc_default="${toolchain%-tsan}"
2910 add_cflags -fsanitize=thread -fPIE
2911 add_ldflags -fsanitize=thread -pie
2912 case "$toolchain" in
2913 gcc-tsan)
2914 add_cflags -fPIC
2915 add_ldflags -fPIC
2916 ;;
2917 esac
2918 ;;
2919 *-usan)
2920 cc_default="${toolchain%-usan}"
2921 add_cflags -fsanitize=undefined
2922 add_ldflags -fsanitize=undefined
2923 case "$toolchain" in
2924 clang-usan)
2925 add_cflags -O1
2926 ;;
2927 esac
2928 ;;
2929 valgrind-*)
2930 target_exec_default="valgrind"
2931 case "$toolchain" in
2932 valgrind-massif)
2933 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2934 ;;
2935 valgrind-memcheck)
2936 target_exec_args="--track-origins=yes --leak-check=full"
2937 ;;
2938 esac
2939 ;;
2940 msvc)
2941 # Check whether the current MSVC version needs the C99 converter.
2942 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2943 # support enough of C99 to build libav. Default to the new
2944 # behaviour if the regexp was unable to match anything, since this
2945 # successfully parses the version number of existing supported
2946 # versions that require the converter (MSVC 2010 and 2012).
2947 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2948 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2949 cc_default="cl"
2950 else
2951 cc_default="c99wrap cl"
2952 fi
2953 ld_default="$source_path/compat/windows/mslink"
2954 nm_default="dumpbin -symbols"
2955 ar_default="lib"
2956 case "$arch" in
2957 arm*)
2958 as_default="armasm"
2959 ;;
2960 esac
2961 target_os_default="win32"
2962 # Use a relative path for TMPDIR. This makes sure all the
2963 # ffconf temp files are written with a relative path, avoiding
2964 # issues with msys/win32 path conversion for MSVC parameters
2965 # such as -Fo<file> or -out:<file>.
2966 TMPDIR=.
2967 ;;
2968 icl)
2969 cc_default="icl"
2970 ld_default="xilink"
2971 nm_default="dumpbin -symbols"
2972 ar_default="xilib"
2973 target_os_default="win32"
2974 TMPDIR=.
2975 ;;
2976 gcov)
2977 add_cflags -fprofile-arcs -ftest-coverage
2978 add_ldflags -fprofile-arcs -ftest-coverage
2979 ;;
2980 llvm-cov)
2981 add_cflags -fprofile-arcs -ftest-coverage
2982 add_ldflags --coverage
2983 ;;
2984 hardened)
2985 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2986 add_cflags -fno-strict-overflow -fstack-protector-all
2987 add_ldflags -Wl,-z,relro -Wl,-z,now
2988 ;;
2989 ?*)
2990 die "Unknown toolchain $toolchain"
2991 ;;
2992 esac
2993
2994 test -n "$cross_prefix" && enable cross_compile
2995
2996 if enabled cross_compile; then
2997 test -n "$arch" && test -n "$target_os" ||
2998 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2999 fi
3000
3001 ar_default="${cross_prefix}${ar_default}"
3002 cc_default="${cross_prefix}${cc_default}"
3003 objcc_default="${cross_prefix}${objcc_default}"
3004 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3005 nm_default="${cross_prefix}${nm_default}"
3006 pkg_config_default="${cross_prefix}${pkg_config_default}"
3007 ranlib="${cross_prefix}${ranlib}"
3008 strip="${cross_prefix}${strip}"
3009
3010 sysinclude_default="${sysroot}/usr/include"
3011
3012 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3013 enabled cross_compile || host_cc_default=$cc
3014 set_default host_cc
3015
3016 if ! $pkg_config --version >/dev/null 2>&1; then
3017 warn "$pkg_config not found, library detection may fail."
3018 pkg_config=false
3019 fi
3020
3021 exesuf() {
3022 case $1 in
3023 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3024 esac
3025 }
3026
3027 EXESUF=$(exesuf $target_os)
3028 HOSTEXESUF=$(exesuf $host_os)
3029
3030 # set temporary file name
3031 : ${TMPDIR:=$TEMPDIR}
3032 : ${TMPDIR:=$TMP}
3033 : ${TMPDIR:=/tmp}
3034
3035 if ! check_cmd mktemp -u XXXXXX; then
3036 # simple replacement for missing mktemp
3037 # NOT SAFE FOR GENERAL USE
3038 mktemp(){
3039 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3040 echo "$tmpname"
3041 mkdir "$tmpname"
3042 }
3043 fi
3044
3045 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3046 die "Unable to create temporary directory in $TMPDIR."
3047
3048 tmpfile(){
3049 tmp="${AVTMPDIR}/test"$2
3050 (set -C; exec > $tmp) 2> /dev/null ||
3051 die "Unable to create temporary file in $AVTMPDIR."
3052 eval $1=$tmp
3053 }
3054
3055 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3056 trap 'exit 2' INT
3057
3058 tmpfile TMPASM .asm
3059 tmpfile TMPC .c
3060 tmpfile TMPE $EXESUF
3061 tmpfile TMPH .h
3062 tmpfile TMPO .o
3063 tmpfile TMPS .S
3064 tmpfile TMPSH .sh
3065 tmpfile TMPV .ver
3066
3067 unset -f mktemp
3068
3069 chmod +x $TMPE
3070
3071 # make sure we can execute files in $TMPDIR
3072 cat > $TMPSH 2>> $logfile <<EOF
3073 #! /bin/sh
3074 EOF
3075 chmod +x $TMPSH >> $logfile 2>&1
3076 if ! $TMPSH >> $logfile 2>&1; then
3077 cat <<EOF
3078 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3079 variable to another directory and make sure that it is not mounted noexec.
3080 EOF
3081 die "Sanity test failed."
3082 fi
3083
3084 armasm_flags(){
3085 for flag; do
3086 case $flag in
3087 # Filter out MSVC cl.exe options from cflags that shouldn't
3088 # be passed to gas-preprocessor
3089 -M[TD]*) ;;
3090 *) echo $flag ;;
3091 esac
3092 done
3093 }
3094
3095 ccc_flags(){
3096 for flag; do
3097 case $flag in
3098 -std=c99) echo -c99 ;;
3099 -mcpu=*) echo -arch ${flag#*=} ;;
3100 -mieee) echo -ieee ;;
3101 -O*|-fast) echo $flag ;;
3102 -fno-math-errno) echo -assume nomath_errno ;;
3103 -g) echo -g3 ;;
3104 -Wall) echo -msg_enable level2 ;;
3105 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3106 -Wl,*) echo $flag ;;
3107 -f*|-W*) ;;
3108 *) echo $flag ;;
3109 esac
3110 done
3111 }
3112
3113 cparser_flags(){
3114 for flag; do
3115 case $flag in
3116 -Wno-switch) echo -Wno-switch-enum ;;
3117 -Wno-format-zero-length) ;;
3118 -Wdisabled-optimization) ;;
3119 -Wno-pointer-sign) echo -Wno-other ;;
3120 *) echo $flag ;;
3121 esac
3122 done
3123 }
3124
3125 msvc_common_flags(){
3126 for flag; do
3127 case $flag in
3128 # In addition to specifying certain flags under the compiler
3129 # specific filters, they must be specified here as well or else the
3130 # generic catch all at the bottom will print the original flag.
3131 -Wall) ;;
3132 -Wextra) ;;
3133 -std=c99) ;;
3134 # Common flags
3135 -fomit-frame-pointer) ;;
3136 -g) echo -Z7 ;;
3137 -fno-math-errno) ;;
3138 -fno-common) ;;
3139 -fno-signed-zeros) ;;
3140 -fPIC) ;;
3141 -mthumb) ;;
3142 -march=*) ;;
3143 -lz) echo zlib.lib ;;
3144 -lx264) echo libx264.lib ;;
3145 -l*) echo ${flag#-l}.lib ;;
3146 -L*) echo -libpath:${flag#-L} ;;
3147 *) echo $flag ;;
3148 esac
3149 done
3150 }
3151
3152 msvc_flags(){
3153 msvc_common_flags "$@"
3154 for flag; do
3155 case $flag in
3156 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3157 -wd4554 ;;
3158 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3159 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3160 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3161 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3162 esac
3163 done
3164 }
3165
3166 icl_flags(){
3167 msvc_common_flags "$@"
3168 for flag; do
3169 case $flag in
3170 # Despite what Intel's documentation says -Wall, which is supported
3171 # on Windows, does enable remarks so disable them here.
3172 -Wall) echo $flag -Qdiag-disable:remark ;;
3173 -std=c99) echo -Qstd=c99 ;;
3174 esac
3175 done
3176 }
3177
3178 pgi_flags(){
3179 for flag; do
3180 case $flag in
3181 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3182 -fomit-frame-pointer) echo -Mnoframe ;;
3183 -g) echo -gopt ;;
3184 *) echo $flag ;;
3185 esac
3186 done
3187 }
3188
3189 suncc_flags(){
3190 for flag; do
3191 case $flag in
3192 -march=*|-mcpu=*)
3193 case "${flag#*=}" in
3194 native) echo -xtarget=native ;;
3195 v9|niagara) echo -xarch=sparc ;;
3196 ultrasparc) echo -xarch=sparcvis ;;
3197 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3198 i586|pentium) echo -xchip=pentium ;;
3199 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3200 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3201 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3202 pentium4*) echo -xtarget=pentium4 ;;
3203 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3204 *-sse3) echo -xarch=sse3 ;;
3205 core2) echo -xarch=ssse3 -xchip=core2 ;;
3206 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3207 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3208 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3209 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3210 k8|opteron|athlon64|athlon-fx)
3211 echo -xarch=sse2a ;;
3212 athlon*) echo -xarch=pentium_proa ;;
3213 esac
3214 ;;
3215 -std=c99) echo -xc99 ;;
3216 -fomit-frame-pointer) echo -xregs=frameptr ;;
3217 -fPIC) echo -KPIC -xcode=pic32 ;;
3218 -W*,*) echo $flag ;;
3219 -f*-*|-W*|-mimpure-text) ;;
3220 -shared) echo -G ;;
3221 *) echo $flag ;;
3222 esac
3223 done
3224 }
3225
3226 tms470_flags(){
3227 for flag; do
3228 case $flag in
3229 -march=*|-mcpu=*)
3230 case "${flag#*=}" in
3231 armv7-a|cortex-a*) echo -mv=7a8 ;;
3232 armv7-r|cortex-r*) echo -mv=7r4 ;;
3233 armv7-m|cortex-m*) echo -mv=7m3 ;;
3234 armv6*|arm11*) echo -mv=6 ;;
3235 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3236 echo -mv=5e ;;
3237 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3238 esac
3239 ;;
3240 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3241 -mfpu=vfp) echo --float_support=vfpv2 ;;
3242 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3243 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3244 -msoft-float) echo --float_support=vfplib ;;
3245 -O[0-3]|-mf=*) echo $flag ;;
3246 -g) echo -g -mn ;;
3247 -pds=*) echo $flag ;;
3248 -D*|-I*) echo $flag ;;
3249 --gcc|--abi=*) echo $flag ;;
3250 -me) echo $flag ;;
3251 esac
3252 done
3253 }
3254
3255 probe_cc(){
3256 pfx=$1
3257 _cc=$2
3258
3259 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3260 unset _ld_o _ldflags _ld_lib _ld_path
3261 unset _depflags _DEPCMD _DEPFLAGS
3262 _flags_filter=echo
3263
3264 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3265 _type=llvm_gcc
3266 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3267 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3268 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3269 _cflags_speed='-O3'
3270 _cflags_size='-Os'
3271 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3272 _type=gcc
3273 gcc_version=$($_cc --version | head -n1)
3274 gcc_basever=$($_cc -dumpversion)
3275 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3276 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3277 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3278 if ! $_cc -dumpversion | grep -q '^2\.'; then
3279 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3280 fi
3281 _cflags_speed='-O3'
3282 _cflags_size='-Os'
3283 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3284 _type=icc
3285 _ident=$($_cc --version | head -n1)
3286 _depflags='-MMD'
3287 _cflags_speed='-O3'
3288 _cflags_size='-Os'
3289 _cflags_noopt='-O1'
3290 elif $_cc -v 2>&1 | grep -q xlc; then
3291 _type=xlc
3292 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3293 _cflags_speed='-O5'
3294 _cflags_size='-O5 -qcompact'
3295 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3296 _type=ccc
3297 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3298 _DEPFLAGS='-M'
3299 _cflags_speed='-fast'
3300 _cflags_size='-O1'
3301 _flags_filter=ccc_flags
3302 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3303 test -d "$sysroot" || die "No valid sysroot specified."
3304 _type=armcc
3305 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3306 armcc_conf="$PWD/armcc.conf"
3307 $_cc --arm_linux_configure \
3308 --arm_linux_config_file="$armcc_conf" \
3309 --configure_sysroot="$sysroot" \
3310 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3311 die "Error creating armcc configuration file."
3312 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3313 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3314 as_default="${cross_prefix}gcc"
3315 _depflags='-MMD'
3316 _cflags_speed='-O3'
3317 _cflags_size='-Os'
3318 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3319 _type=tms470
3320 _ident=$($_cc -version | head -n1 | tr -s ' ')
3321 _flags='--gcc --abi=eabi -me'
3322 _cc_e='-ppl -fe=$@'
3323 _cc_o='-fe=$@'
3324 _depflags='-ppa -ppd=$(@:.o=.d)'
3325 _cflags_speed='-O3 -mf=5'
3326 _cflags_size='-O3 -mf=2'
3327 _flags_filter=tms470_flags
3328 elif $_cc -v 2>&1 | grep -q clang; then
3329 _type=clang
3330 _ident=$($_cc --version 2>/dev/null | head -n1)
3331 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3332 _cflags_speed='-O3'
3333 _cflags_size='-Os'
3334 elif $_cc -V 2>&1 | grep -q Sun; then
3335 _type=suncc
3336 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3337 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3338 _DEPFLAGS='-xM1 -xc99'
3339 _ldflags='-std=c99'
3340 _cflags_speed='-O5'
3341 _cflags_size='-O5 -xspace'
3342 _flags_filter=suncc_flags
3343 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3344 _type=pathscale
3345 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3346 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3347 _cflags_speed='-O2'
3348 _cflags_size='-Os'
3349 _flags_filter='filter_out -Wdisabled-optimization'
3350 elif $_cc -v 2>&1 | grep -q Open64; then
3351 _type=open64
3352 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3353 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3354 _cflags_speed='-O2'
3355 _cflags_size='-Os'
3356 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3357 elif $_cc -V 2>&1 | grep -q Portland; then
3358 _type=pgi
3359 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3360 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3361 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3362 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3363 _cflags_noopt="-O1"
3364 _flags_filter=pgi_flags
3365 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3366 _type=armasm
3367 _ident=$($_cc | head -n1)
3368 # 4509: "This form of conditional instruction is deprecated"
3369 _flags="-nologo -ignore 4509"
3370 _flags_filter=armasm_flags
3371 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3372 _type=msvc
3373 _ident=$($_cc 2>&1 | head -n1)
3374 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3375 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3376 _cflags_speed="-O2"
3377 _cflags_size="-O1"
3378 _cflags_noopt="-O1"
3379 if $_cc -nologo- 2>&1 | grep -q Linker; then
3380 _ld_o='-out:$@'
3381 else
3382 _ld_o='-Fe$@'
3383 fi
3384 _cc_o='-Fo$@'
3385 _cc_e='-P -Fi$@'
3386 _flags_filter=msvc_flags
3387 _ld_lib='lib%.a'
3388 _ld_path='-libpath:'
3389 _flags='-nologo'
3390 elif $_cc 2>&1 | grep -q Intel; then
3391 _type=icl
3392 _ident=$($_cc 2>&1 | head -n1)
3393 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3394 # Not only is O3 broken on 13.x+ but it is slower on all previous
3395 # versions (tested) as well.
3396 _cflags_speed="-O2"
3397 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3398 if $_cc 2>&1 | grep -q Linker; then
3399 _ld_o='-out:$@'
3400 else
3401 _ld_o='-Fe$@'
3402 fi
3403 _cc_o='-Fo$@'
3404 _cc_e='-P'
3405 _flags_filter=icl_flags
3406 _ld_lib='lib%.a'
3407 _ld_path='-libpath:'
3408 # -Qdiag-error to make icl error when seeing certain unknown arguments
3409 _flags='-nologo -Qdiag-error:4044,10157'
3410 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3411 # with MSVC which enables it by default.
3412 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3413 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3414 # lld can emulate multiple different linkers; in ms link.exe mode,
3415 # the -? parameter gives the help output which contains an identifyable
3416 # string, while it gives an error in other modes.
3417 _type=lld-link
3418 # The link.exe mode doesn't have a switch for getting the version,
3419 # but we can force it back to gnu mode and get the version from there.
3420 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3421 _ld_o='-out:$@'
3422 _flags_filter=msvc_flags
3423 _ld_lib='lib%.a'
3424 _ld_path='-libpath:'
3425 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3426 _type=cparser
3427 _ident=$($_cc --version | head -n1)
3428 _depflags='-MMD'
3429 _cflags_speed='-O4'
3430 _cflags_size='-O2'
3431 _flags_filter=cparser_flags
3432 fi
3433
3434 eval ${pfx}_type=\$_type
3435 eval ${pfx}_ident=\$_ident
3436 }
3437
3438 set_ccvars(){
3439 eval ${1}_C=\${_cc_c-\${${1}_C}}
3440 eval ${1}_E=\${_cc_e-\${${1}_E}}
3441 eval ${1}_O=\${_cc_o-\${${1}_O}}
3442
3443 if [ -n "$_depflags" ]; then
3444 eval ${1}_DEPFLAGS=\$_depflags
3445 else
3446 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3447 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3448 eval DEP${1}FLAGS=\$_flags
3449 fi
3450 }
3451
3452 probe_cc cc "$cc"
3453 cflags_filter=$_flags_filter
3454 cflags_speed=$_cflags_speed
3455 cflags_size=$_cflags_size
3456 cflags_noopt=$_cflags_noopt
3457 add_cflags $_flags $_cflags
3458 cc_ldflags=$_ldflags
3459 set_ccvars CC
3460
3461 probe_cc hostcc "$host_cc"
3462 host_cflags_filter=$_flags_filter
3463 host_cflags_speed=$_cflags_speed
3464 add_host_cflags $_flags $_cflags
3465 set_ccvars HOSTCC
3466
3467 test -n "$cc_type" && enable $cc_type ||
3468 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3469
3470 : ${as_default:=$cc}
3471 : ${objcc_default:=$cc}
3472 : ${dep_cc_default:=$cc}
3473 : ${ld_default:=$cc}
3474 : ${host_ld_default:=$host_cc}
3475 set_default ar as objcc dep_cc ld host_ld
3476
3477 probe_cc as "$as"
3478 asflags_filter=$_flags_filter
3479 add_asflags $_flags $_cflags
3480 set_ccvars AS
3481
3482 probe_cc objcc "$objcc"
3483 objcflags_filter=$_flags_filter
3484 add_objcflags $_flags $_cflags
3485 set_ccvars OBJC
3486
3487 probe_cc ld "$ld"
3488 ldflags_filter=$_flags_filter
3489 add_ldflags $_flags $_ldflags
3490 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3491 LD_O=${_ld_o-$LD_O}
3492 LD_LIB=${_ld_lib-$LD_LIB}
3493 LD_PATH=${_ld_path-$LD_PATH}
3494
3495 probe_cc hostld "$host_ld"
3496 host_ldflags_filter=$_flags_filter
3497 add_host_ldflags $_flags $_ldflags
3498 HOSTLD_O=${_ld_o-$HOSTLD_O}
3499
3500 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3501 probe_cc depcc "$dep_cc"
3502 CCDEP=${_DEPCMD:-$DEPCMD}
3503 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3504 DEPCCFLAGS=$_flags
3505 fi
3506
3507 if $ar 2>&1 | grep -q Microsoft; then
3508 arflags="-nologo"
3509 ar_o='-out:$@'
3510 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3511 arflags="rq"
3512 ar_o='$@'
3513 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3514 arflags='-Xany -r -c'
3515 ar_o='$@'
3516 else
3517 arflags="rc"
3518 ar_o='$@'
3519 fi
3520
3521 add_cflags $extra_cflags
3522 add_objcflags $extra_objcflags
3523 add_asflags $extra_cflags
3524
3525 if test -n "$sysroot"; then
3526 case "$cc_type" in
3527 gcc|llvm_gcc|clang)
3528 add_cppflags --sysroot="$sysroot"
3529 add_ldflags --sysroot="$sysroot"
3530 ;;
3531 tms470)
3532 add_cppflags -I"$sysinclude"
3533 add_ldflags --sysroot="$sysroot"
3534 ;;
3535 esac
3536 fi
3537
3538 if test "$cpu" = host; then
3539 enabled cross_compile &&
3540 die "--cpu=host makes no sense when cross-compiling."
3541
3542 case "$cc_type" in
3543 gcc|llvm_gcc)
3544 check_native(){
3545 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3546 sed -n "/cc1.*$1=/{
3547 s/.*$1=\\([^ ]*\\).*/\\1/
3548 p
3549 q
3550 }" $TMPE
3551 }
3552 cpu=$(check_native -march || check_native -mcpu)
3553 ;;
3554 esac
3555
3556 test "${cpu:-host}" = host &&
3557 die "--cpu=host not supported with compiler $cc"
3558 fi
3559
3560 # Deal with common $arch aliases
3561 case "$arch" in
3562 aarch64|arm64)
3563 arch="aarch64"
3564 ;;
3565 arm*)
3566 arch="arm"
3567 ;;
3568 mips*|IP*)
3569 case "$arch" in
3570 *el)
3571 add_cppflags -EL
3572 add_ldflags -EL
3573 ;;
3574 *eb)
3575 add_cppflags -EB
3576 add_ldflags -EB
3577 ;;
3578 esac
3579 arch="mips"
3580 ;;
3581 parisc*|hppa*)
3582 arch="parisc"
3583 ;;
3584 "Power Macintosh"|ppc*|powerpc*)
3585 arch="ppc"
3586 ;;
3587 s390|s390x)
3588 arch="s390"
3589 ;;
3590 sh4|sh)
3591 arch="sh4"
3592 ;;
3593 sun4u|sparc*)
3594 arch="sparc"
3595 ;;
3596 tilegx|tile-gx)
3597 arch="tilegx"
3598 ;;
3599 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3600 arch="x86"
3601 ;;
3602 esac
3603
3604 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3605 enable $arch
3606
3607 # Add processor-specific flags
3608 if enabled aarch64; then
3609
3610 case $cpu in
3611 armv*)
3612 cpuflags="-march=$cpu"
3613 ;;
3614 *)
3615 cpuflags="-mcpu=$cpu"
3616 ;;
3617 esac
3618
3619 elif enabled alpha; then
3620
3621 cpuflags="-mcpu=$cpu"
3622
3623 elif enabled arm; then
3624
3625 check_arm_arch() {
3626 check_cpp_condition stddef.h \
3627 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3628 $cpuflags
3629 }
3630
3631 probe_arm_arch() {
3632 if check_arm_arch 4; then echo armv4
3633 elif check_arm_arch 4T; then echo armv4t
3634 elif check_arm_arch 5; then echo armv5
3635 elif check_arm_arch 5E; then echo armv5e
3636 elif check_arm_arch 5T; then echo armv5t
3637 elif check_arm_arch 5TE; then echo armv5te
3638 elif check_arm_arch 5TEJ; then echo armv5te
3639 elif check_arm_arch 6; then echo armv6
3640 elif check_arm_arch 6J; then echo armv6j
3641 elif check_arm_arch 6K; then echo armv6k
3642 elif check_arm_arch 6Z; then echo armv6z
3643 elif check_arm_arch 6ZK; then echo armv6zk
3644 elif check_arm_arch 6T2; then echo armv6t2
3645 elif check_arm_arch 7; then echo armv7
3646 elif check_arm_arch 7A 7_A; then echo armv7-a
3647 elif check_arm_arch 7S; then echo armv7-a
3648 elif check_arm_arch 7R 7_R; then echo armv7-r
3649 elif check_arm_arch 7M 7_M; then echo armv7-m
3650 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3651 elif check_arm_arch 8A 8_A; then echo armv8-a
3652 fi
3653 }
3654
3655 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3656
3657 case $cpu in
3658 armv*)
3659 cpuflags="-march=$cpu"
3660 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3661 ;;
3662 *)
3663 cpuflags="-mcpu=$cpu"
3664 case $cpu in
3665 cortex-a*) subarch=armv7a ;;
3666 cortex-r*) subarch=armv7r ;;
3667 cortex-m*) enable thumb; subarch=armv7m ;;
3668 arm11*) subarch=armv6 ;;
3669 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3670 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3671 *) subarch=$(probe_arm_arch) ;;
3672 esac
3673 ;;
3674 esac
3675
3676 case "$subarch" in
3677 armv5t*) enable fast_clz ;;
3678 armv[6-8]*) enable fast_clz fast_unaligned ;;
3679 esac
3680
3681 elif enabled avr32; then
3682
3683 case $cpu in
3684 ap7[02]0[0-2])
3685 subarch="avr32_ap"
3686 cpuflags="-mpart=$cpu"
3687 ;;
3688 ap)
3689 subarch="avr32_ap"
3690 cpuflags="-march=$cpu"
3691 ;;
3692 uc3[ab]*)
3693 subarch="avr32_uc"
3694 cpuflags="-mcpu=$cpu"
3695 ;;
3696 uc)
3697 subarch="avr32_uc"
3698 cpuflags="-march=$cpu"
3699 ;;
3700 esac
3701
3702 elif enabled bfin; then
3703
3704 cpuflags="-mcpu=$cpu"
3705
3706 elif enabled mips; then
3707
3708 cpuflags="-march=$cpu"
3709
3710 elif enabled ppc; then
3711
3712 disable ldbrx
3713
3714 case $(tolower $cpu) in
3715 601|ppc601|powerpc601)
3716 cpuflags="-mcpu=601"
3717 disable altivec
3718 ;;
3719 603*|ppc603*|powerpc603*)
3720 cpuflags="-mcpu=603"
3721 disable altivec
3722 ;;
3723 604*|ppc604*|powerpc604*)
3724 cpuflags="-mcpu=604"
3725 disable altivec
3726 ;;
3727 g3|75*|ppc75*|powerpc75*)
3728 cpuflags="-mcpu=750"
3729 disable altivec
3730 ;;
3731 g4|745*|ppc745*|powerpc745*)
3732 cpuflags="-mcpu=7450"
3733 disable vsx
3734 ;;
3735 74*|ppc74*|powerpc74*)
3736 cpuflags="-mcpu=7400"
3737 disable vsx
3738 ;;
3739 g5|970|ppc970|powerpc970)
3740 cpuflags="-mcpu=970"
3741 disable vsx
3742 ;;
3743 power[3-6]*)
3744 cpuflags="-mcpu=$cpu"
3745 disable vsx
3746 ;;
3747 power[7-8]*)
3748 cpuflags="-mcpu=$cpu"
3749 enable ldbrx
3750 ;;
3751 cell)
3752 cpuflags="-mcpu=cell"
3753 enable ldbrx
3754 disable vsx
3755 ;;
3756 e500mc)
3757 cpuflags="-mcpu=e500mc"
3758 disable altivec
3759 ;;
3760 e500v2)
3761 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3762 disable altivec
3763 disable dcbzl
3764 ;;
3765 e500)
3766 cpuflags="-mcpu=8540 -mhard-float"
3767 disable altivec
3768 disable dcbzl
3769 ;;
3770 esac
3771
3772 elif enabled sparc; then
3773
3774 case $cpu in
3775 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3776 cpuflags="-mcpu=$cpu"
3777 ;;
3778 ultrasparc*|niagara[234])
3779 cpuflags="-mcpu=$cpu"
3780 ;;
3781 esac
3782
3783 elif enabled x86; then
3784
3785 case $cpu in
3786 i[345]86|pentium)
3787 cpuflags="-march=$cpu"
3788 disable i686
3789 disable mmx
3790 ;;
3791 # targets that do NOT support nopl and conditional mov (cmov)
3792 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3793 cpuflags="-march=$cpu"
3794 disable i686
3795 ;;
3796 # targets that do support nopl and conditional mov (cmov)
3797 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3798 cpuflags="-march=$cpu"
3799 enable i686
3800 enable fast_cmov
3801 ;;
3802 # targets that do support conditional mov but on which it's slow
3803 pentium4|pentium4m|prescott|nocona)
3804 cpuflags="-march=$cpu"
3805 enable i686
3806 disable fast_cmov
3807 ;;
3808 esac
3809
3810 fi
3811
3812 if [ "$cpu" != generic ]; then
3813 add_cflags $cpuflags
3814 add_asflags $cpuflags
3815 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3816 fi
3817
3818 # compiler sanity check
3819 check_exec <<EOF
3820 int main(void){ return 0; }
3821 EOF
3822 if test "$?" != 0; then
3823 echo "$cc is unable to create an executable file."
3824 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3825 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3826 echo "Only do this if you know what cross compiling means."
3827 fi
3828 die "C compiler test failed."
3829 fi
3830
3831 add_cppflags -D_ISOC99_SOURCE
3832
3833 # some compilers silently accept -std=c11, so we also need to check that the
3834 # version macro is defined properly
3835 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3836 add_cflags -std=c11 ||
3837 check_cflags -std=c99
3838
3839 check_cppflags -D_FILE_OFFSET_BITS=64
3840 check_cppflags -D_LARGEFILE_SOURCE
3841
3842 add_host_cppflags -D_ISOC99_SOURCE
3843 check_host_cflags -std=c99
3844 check_host_cflags -Wall
3845 check_host_cflags $host_cflags_speed
3846
3847 check_64bit(){
3848 arch32=$1
3849 arch64=$2
3850 expr=$3
3851 check_code cc "" "int test[2*($expr) - 1]" &&
3852 subarch=$arch64 || subarch=$arch32
3853 }
3854
3855 case "$arch" in
3856 aarch64|alpha|ia64)
3857 spic=$shared
3858 ;;
3859 mips)
3860 check_64bit mips mips64 '_MIPS_SIM > 1'
3861 spic=$shared
3862 ;;
3863 parisc)
3864 check_64bit parisc parisc64 'sizeof(void *) > 4'
3865 spic=$shared
3866 ;;
3867 ppc)
3868 check_64bit ppc ppc64 'sizeof(void *) > 4'
3869 spic=$shared
3870 ;;
3871 s390)
3872 check_64bit s390 s390x 'sizeof(void *) > 4'
3873 spic=$shared
3874 ;;
3875 sparc)
3876 check_64bit sparc sparc64 'sizeof(void *) > 4'
3877 spic=$shared
3878 ;;
3879 x86)
3880 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3881 if test "$subarch" = "x86_64"; then
3882 spic=$shared
3883 fi
3884 ;;
3885 esac
3886
3887 enable $subarch
3888 enabled spic && enable_weak pic
3889
3890 enabled x86_64 && objformat=elf64 || objformat="elf32"
3891
3892 # OS specific
3893 case $target_os in
3894 aix)
3895 SHFLAGS=-shared
3896 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3897 enabled shared && add_ldflags -Wl,-brtl
3898 ;;
3899 android)
3900 disable symver
3901 enable section_data_rel_ro
3902 SLIB_INSTALL_NAME='$(SLIBNAME)'
3903 SLIB_INSTALL_LINKS=
3904 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3905 ;;
3906 haiku)
3907 prefix_default="/boot/common"
3908 network_extralibs="-lnetwork"
3909 host_extralibs=
3910 ;;
3911 sunos)
3912 SHFLAGS='-shared -Wl,-h,$$(@F)'
3913 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3914 network_extralibs="-lsocket -lnsl"
3915 # When using suncc to build, the Solaris linker will mark
3916 # an executable with each instruction set encountered by
3917 # the Solaris assembler. As our libraries contain their own
3918 # guards for processor-specific code, instead suppress
3919 # generation of the HWCAPS ELF section on Solaris x86 only.
3920 enabled_all suncc x86 &&
3921 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3922 add_ldflags -Wl,-M,mapfile
3923 nm_default='nm -P -g'
3924 version_script='-M'
3925 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3926 ;;
3927 netbsd)
3928 disable symver
3929 oss_indev_extralibs="-lossaudio"
3930 oss_outdev_extralibs="-lossaudio"
3931 ;;
3932 openbsd|bitrig)
3933 disable symver
3934 SHFLAGS='-shared'
3935 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3936 SLIB_INSTALL_LINKS=
3937 oss_indev_extralibs="-lossaudio"
3938 oss_outdev_extralibs="-lossaudio"
3939 ;;
3940 dragonfly)
3941 disable symver
3942 ;;
3943 freebsd)
3944 ;;
3945 bsd/os)
3946 add_extralibs -lpoll -lgnugetopt
3947 ;;
3948 darwin)
3949 enabled ppc && add_asflags -force_cpusubtype_ALL
3950 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3951 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3952 add_ldflags -Wl,-dynamic,-search_paths_first
3953 check_cflags -Werror=partial-availability
3954 SLIBSUF=".dylib"
3955 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3956 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3957 enabled x86_64 && objformat="macho64" || objformat="macho32"
3958 enabled_any pic shared ||
3959 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3960 check_header dispatch/dispatch.h &&
3961 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3962 ;;
3963 msys*)
3964 die "Native MSYS builds are discouraged, please use the MINGW environment."
3965 ;;
3966 mingw32*|mingw64*)
3967 if test $target_os = "mingw32ce"; then
3968 disable network
3969 else
3970 target_os=mingw32
3971 fi
3972 LIBTARGET=i386
3973 if enabled x86_64; then
3974 LIBTARGET="i386:x86-64"
3975 elif enabled arm; then
3976 LIBTARGET=arm-wince
3977 fi
3978 check_ldflags -Wl,--nxcompat
3979 check_ldflags -Wl,--dynamicbase
3980 shlibdir_default="$bindir_default"
3981 SLIBPREF=""
3982 SLIBSUF=".dll"
3983 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3984 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3985 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3986 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3987 SLIB_INSTALL_LINKS=
3988 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3989 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3990 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3991 enabled x86_64 && objformat="win64" || objformat="win32"
3992 dlltool="${cross_prefix}dlltool"
3993 ranlib=:
3994 enable dos_paths
3995 ;;
3996 win32|win64)
3997 disable symver
3998 if enabled shared; then
3999 # Link to the import library instead of the normal static library
4000 # for shared libs.
4001 LD_LIB='%.lib'
4002 # Cannot build both shared and static libs with MSVC or icl.
4003 disable static
4004 fi
4005 shlibdir_default="$bindir_default"
4006 SLIBPREF=""
4007 SLIBSUF=".dll"
4008 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4009 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4010 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4011 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4012 SLIB_INSTALL_LINKS=
4013 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4014 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4015 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4016 enabled x86_64 && objformat="win64" || objformat="win32"
4017 ranlib=:
4018 enable dos_paths
4019 ;;
4020 cygwin*)
4021 target_os=cygwin
4022 shlibdir_default="$bindir_default"
4023 SLIBPREF="cyg"
4024 SLIBSUF=".dll"
4025 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4026 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4027 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4028 SLIB_INSTALL_LINKS=
4029 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4030 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4031 enabled x86_64 && objformat="win64" || objformat="win32"
4032 enable dos_paths
4033 ;;
4034 *-dos|freedos|opendos)
4035 network_extralibs="-lsocket"
4036 objformat="coff"
4037 enable dos_paths
4038 add_cppflags -U__STRICT_ANSI__
4039 ;;
4040 linux)
4041 enable dv1394
4042 enable section_data_rel_ro
4043 ;;
4044 irix*)
4045 target_os=irix
4046 ranlib="echo ignoring ranlib"
4047 ;;
4048 os/2*)
4049 ln_s="cp -f"
4050 objformat="aout"
4051 add_cppflags -D_GNU_SOURCE
4052 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4053 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4054 LIBSUF="_s.a"
4055 SLIBPREF=""
4056 SLIBSUF=".dll"
4057 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4058 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4059 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4060 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4061 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4062 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4063 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4064 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4065 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4066 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4067 enable dos_paths
4068 ;;
4069 gnu/kfreebsd)
4070 add_cppflags -D_BSD_SOURCE
4071 ;;
4072 gnu)
4073 ;;
4074 qnx)
4075 add_cppflags -D_QNX_SOURCE
4076 network_extralibs="-lsocket"
4077 ;;
4078 symbian)
4079 SLIBSUF=".dll"
4080 enable dos_paths
4081 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4082 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4083 add_ldflags -Wl,--target1-abs,--no-undefined \
4084 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4085 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4086 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4087 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4088 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4089 ;;
4090 osf1)
4091 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4092 ;;
4093 minix)
4094 ;;
4095 none)
4096 ;;
4097 *)
4098 die "Unknown OS '$target_os'."
4099 ;;
4100 esac
4101
4102 # determine libc flavour
4103
4104 probe_libc(){
4105 pfx=$1
4106 pfx_no_=${pfx%_}
4107 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4108 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4109 eval ${pfx}libc_type=uclibc
4110 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4111 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4112 eval ${pfx}libc_type=glibc
4113 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4114 # MinGW headers can be installed on Cygwin, so check for newlib first.
4115 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4116 eval ${pfx}libc_type=newlib
4117 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4118 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4119 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4120 eval ${pfx}libc_type=mingw64
4121 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4122 eval test \$${pfx_no_}cc_type = "gcc" &&
4123 add_${pfx}cppflags -D__printf__=__gnu_printf__
4124 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4125 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4126 eval ${pfx}libc_type=mingw32
4127 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4128 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4129 die "ERROR: MinGW32 runtime version must be >= 3.15."
4130 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4131 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4132 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4133 eval test \$${pfx_no_}cc_type = "gcc" &&
4134 add_${pfx}cppflags -D__printf__=__gnu_printf__
4135 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4136 eval ${pfx}libc_type=msvcrt
4137 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4138 if [ "$pfx" = host_ ]; then
4139 add_host_cppflags -Dsnprintf=_snprintf
4140 else
4141 add_compat strtod.o strtod=avpriv_strtod
4142 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4143 _snprintf=avpriv_snprintf \
4144 vsnprintf=avpriv_vsnprintf
4145 fi
4146 fi
4147 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4148 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4149 # 0x601 by default unless something else is set by the user.
4150 # This can easily lead to us detecting functions only present
4151 # in such new versions and producing binaries requiring windows 7.0.
4152 # Therefore explicitly set the default to XP unless the user has
4153 # set something else on the command line.
4154 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4155 # family. For these cases, configure is free to use any functions
4156 # found in the SDK headers by default. (Alternatively, we could force
4157 # _WIN32_WINNT to 0x0602 in that case.)
4158 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4159 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4160 #ifdef WINAPI_FAMILY
4161 #include <winapifamily.h>
4162 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4163 #error not desktop
4164 #endif
4165 #endif
4166 EOF
4167 if [ "$pfx" = "" ]; then
4168 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4169 fi
4170 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4171 eval ${pfx}libc_type=klibc
4172 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4173 eval ${pfx}libc_type=bionic
4174 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4175 eval ${pfx}libc_type=solaris
4176 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4177 else
4178 eval ${pfx}libc_type=default
4179 add_${pfx}cppflags -D_DEFAULT_SOURCE
4180 fi
4181 }
4182
4183 probe_libc
4184 test -n "$libc_type" && enable libc_$libc_type
4185 probe_libc host_
4186 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4187
4188 # hacks for compiler/libc/os combinations
4189
4190 case $libc_type in
4191 bionic)
4192 add_compat strtod.o strtod=avpriv_strtod
4193 ;;
4194 glibc)
4195 if enabled tms470; then
4196 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4197 add_cppflags -D__USER_LABEL_PREFIX__=
4198 add_cppflags -D__builtin_memset=memset
4199 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4200 add_cflags -pds=48 # incompatible redefinition of macro
4201 elif enabled ccc; then
4202 add_ldflags -Wl,-z,now # calls to libots crash without this
4203 fi
4204 ;;
4205 esac
4206
4207 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4208 add_cppflags '-I\$(SRC_PATH)/compat/float'
4209
4210 esc(){
4211 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4212 }
4213
4214 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4215
4216 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4217
4218 set_default $PATHS_LIST
4219 set_default nm
4220
4221 # we need to build at least one lib type
4222 if ! enabled_any static shared; then
4223 cat <<EOF
4224 At least one library type must be built.
4225 Specify --enable-static to build the static libraries or --enable-shared to
4226 build the shared libraries as well. To only build the shared libraries specify
4227 --disable-static in addition to --enable-shared.
4228 EOF
4229 exit 1
4230 fi
4231
4232 disabled optimizations || check_cflags -fomit-frame-pointer
4233
4234 enable_weak_pic() {
4235 disabled pic && return
4236 enable pic
4237 add_cppflags -DPIC
4238 case "$target_os" in
4239 mingw*|cygwin*)
4240 ;;
4241 *)
4242 add_cflags -fPIC
4243 ;;
4244 esac
4245 add_asflags -fPIC
4246 }
4247
4248 enabled pic && enable_weak_pic
4249
4250 check_cc <<EOF || die "Symbol mangling check failed."
4251 int ff_extern;
4252 EOF
4253 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4254 extern_prefix=${sym%%ff_extern*}
4255
4256 check_inline_asm inline_asm '"" ::'
4257
4258 _restrict=
4259 for restrict_keyword in restrict __restrict__ __restrict; do
4260 check_cc <<EOF && _restrict=$restrict_keyword && break
4261 void foo(char * $restrict_keyword p);
4262 EOF
4263 done
4264
4265 check_cc <<EOF && enable pragma_deprecated
4266 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4267 EOF
4268
4269 check_cc <<EOF && enable attribute_packed
4270 struct { int x; } __attribute__((packed)) x;
4271 EOF
4272
4273 check_cc <<EOF && enable attribute_may_alias
4274 union { int x; } __attribute__((may_alias)) x;
4275 EOF
4276
4277 check_cc <<EOF || die "endian test failed"
4278 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4279 EOF
4280 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4281
4282 check_gas() {
4283 log "check_gas using '$as' as AS"
4284 # :vararg is used on aarch64, arm and ppc altivec
4285 check_as <<EOF || return 1
4286 .macro m n, y:vararg=0
4287 \n: .int \y
4288 .endm
4289 m x
4290 EOF
4291 # .altmacro is only used in arm asm
4292 ! enabled arm || check_as <<EOF || return 1
4293 .altmacro
4294 EOF
4295 enable gnu_as
4296 return 0
4297 }
4298
4299 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4300 nogas=:
4301 enabled_any arm aarch64 && nogas=die
4302 enabled_all ppc altivec && nogas=warn
4303 as_noop=-v
4304
4305 case $as_type in
4306 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4307 gcc) gaspp_as_type=gas ;;
4308 *) gaspp_as_type=$as_type ;;
4309 esac
4310
4311 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4312
4313 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4314 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4315
4316 if ! check_gas ; then
4317 as=${gas:=$as}
4318 check_gas || \
4319 $nogas "GNU assembler not found, install/update gas-preprocessor"
4320 fi
4321
4322 check_as <<EOF && enable as_func
4323 .func test
4324 .endfunc
4325 EOF
4326 fi
4327
4328 check_inline_asm inline_asm_labels '"1:\n"'
4329
4330 if enabled aarch64; then
4331 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4332 # internal assembler in clang 3.3 does not support this instruction
4333 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4334 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4335
4336 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4337
4338 elif enabled alpha; then
4339
4340 check_cflags -mieee
4341
4342 elif enabled arm; then
4343
4344 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4345 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4346 enabled thumb && check_cflags -mthumb || check_cflags -marm
4347
4348 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4349 enable vfp_args
4350 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4351 enable vfp_args
4352 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4353 case "${cross_prefix:-$cc}" in
4354 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4355 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4356 __asm__ (".eabi_attribute 28, 1");
4357 int main(void) { return 0; }
4358 EOF
4359 esac
4360 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4361 fi
4362
4363 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4364 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4365 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4366 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4367 enabled vfp