configure: Bail out if both GnuTLS and OpenSSL are enabled
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
241 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
242 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
243 --enable-libnpp Nvidia CUDA processing
244 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
245 --enable-nvenc Nvidia video encoding
246 --enable-omx OpenMAX IL
247 --enable-omx-rpi OpenMAX IL for Raspberry Pi
248 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
249 --enable-vda Apple Video Decode Acceleration [auto]
250 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251
252 Toolchain options:
253 --arch=ARCH select architecture [$arch]
254 --cpu=CPU select the minimum required CPU (affects
255 instruction selection, may crash on older CPUs)
256 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
257 --enable-cross-compile assume a cross-compiler is used
258 --sysroot=PATH root of cross-build tree
259 --sysinclude=PATH location of cross-build system headers
260 --target-os=OS compiler targets OS [$target_os]
261 --target-exec=CMD command to run executables on target
262 --target-path=DIR path to view of build directory on target
263 --target-samples=DIR path to samples directory on target
264 --toolchain=NAME set tool defaults according to NAME
265 --nm=NM use nm tool
266 --ar=AR use archive tool AR [$ar_default]
267 --as=AS use assembler AS [$as_default]
268 --cc=CC use C compiler CC [$cc_default]
269 --objcc=OCC use ObjC compiler OCC [$cc_default]
270 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
271 --ld=LD use linker LD
272 --x86asmexe=X86ASM use x86 assembler X86ASM
273 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
274 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
275 --host-cc=HOSTCC use host C compiler HOSTCC
276 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
277 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
278 --host-ld=HOSTLD use host linker HOSTLD
279 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
280 --host-libs=HLIBS use libs HLIBS when linking for host
281 --host-os=OS compiler host OS [$target_os]
282 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
283 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
284 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
285 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
286 --extra-libs=ELIBS add ELIBS [$ELIBS]
287 --extra-version=STRING version string suffix []
288 --optflags=OPTFLAGS override optimization-related compiler flags
289 --enable-pic build position-independent code
290 --enable-thumb compile for Thumb instruction set
291 --enable-lto use link-time optimization
292 --env="ENV=override" override the environment variables
293
294 Advanced options (experts only):
295 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
296 --custom-allocator=NAME use a supported custom allocator
297 --disable-symver disable symbol versioning
298 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
299 --disable-safe-bitstream-reader
300 disable buffer boundary checking in bitreaders
301 (faster, but may crash)
302 --enable-sram allow use of on-chip SRAM
303
304 Optimization options (experts only):
305 --disable-asm disable all assembly optimizations
306 --disable-altivec disable AltiVec optimizations
307 --disable-vsx disable VSX optimizations
308 --disable-power8 disable POWER8 optimizations
309 --disable-amd3dnow disable 3DNow! optimizations
310 --disable-amd3dnowext disable 3DNow! extended optimizations
311 --disable-mmx disable MMX optimizations
312 --disable-mmxext disable MMXEXT optimizations
313 --disable-sse disable SSE optimizations
314 --disable-sse2 disable SSE2 optimizations
315 --disable-sse3 disable SSE3 optimizations
316 --disable-ssse3 disable SSSE3 optimizations
317 --disable-sse4 disable SSE4 optimizations
318 --disable-sse42 disable SSE4.2 optimizations
319 --disable-avx disable AVX optimizations
320 --disable-xop disable XOP optimizations
321 --disable-fma3 disable FMA3 optimizations
322 --disable-fma4 disable FMA4 optimizations
323 --disable-avx2 disable AVX2 optimizations
324 --disable-armv5te disable armv5te optimizations
325 --disable-armv6 disable armv6 optimizations
326 --disable-armv6t2 disable armv6t2 optimizations
327 --disable-vfp disable VFP optimizations
328 --disable-neon disable NEON optimizations
329 --disable-inline-asm disable use of inline assembly
330 --disable-x86asm disable use of standalone x86 assembly
331
332 Developer options (useful when working on Libav itself):
333 --disable-debug disable debugging symbols
334 --enable-debug=LEVEL set the debug level [$debuglevel]
335 --disable-optimizations disable compiler optimizations
336 --enable-extra-warnings enable more compiler warnings
337 --samples=PATH location of test samples for FATE, if not set use
338 \$LIBAV_SAMPLES at make invocation time.
339 --enable-neon-clobber-test check NEON registers for clobbering (should be
340 used only for debugging purposes)
341 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
342 should be used only for debugging purposes)
343 --enable-random randomly enable/disable components
344 --disable-random
345 --enable-random=LIST randomly enable/disable specific components or
346 --disable-random=LIST component groups. LIST is a comma-separated list
347 of NAME[:PROB] entries where NAME is a component
348 (group) and PROB the probability associated with
349 NAME (default 0.5).
350 --random-seed=VALUE seed value for --enable/disable-random
351 --disable-valgrind-backtrace do not print a backtrace under Valgrind
352 (only applies to --disable-optimizations builds)
353 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
354 in the name) of tests whose result is ignored
355
356 NOTE: Object files are built at the place where configure is launched.
357 EOF
358 exit 0
359 }
360
361 quotes='""'
362
363 log(){
364 echo "$@" >> $logfile
365 }
366
367 log_file(){
368 log BEGIN $1
369 i=1
370 while read line; do
371 printf '%5s %s\n' "${i}" "${line}"
372 i=$(($i+1))
373 done < $1 >> $logfile
374 log END $1
375 }
376
377 echolog(){
378 log "$@"
379 echo "$@"
380 }
381
382 warn(){
383 log "WARNING: $*"
384 WARNINGS="${WARNINGS}WARNING: $*\n"
385 }
386
387 die(){
388 echolog "$@"
389 cat <<EOF
390
391 If you think configure made a mistake, make sure you are using the latest
392 version from Git. If the latest version fails, report the problem to the
393 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
394 EOF
395 if disabled logging; then
396 cat <<EOF
397 Rerun configure with logging enabled (do not use --disable-logging), and
398 include the log this produces with your report.
399 EOF
400 else
401 cat <<EOF
402 Include the log file "$logfile" produced by configure as this will help
403 solving the problem.
404 EOF
405 fi
406 exit 1
407 }
408
409 # Avoid locale weirdness, besides we really just want to translate ASCII.
410 toupper(){
411 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
412 }
413
414 tolower(){
415 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
416 }
417
418 c_escape(){
419 echo "$*" | sed 's/["\\]/\\\0/g'
420 }
421
422 sh_quote(){
423 v=$(echo "$1" | sed "s/'/'\\\\''/g")
424 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
425 echo "$v"
426 }
427
428 cleanws(){
429 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
430 }
431
432 filter(){
433 pat=$1
434 shift
435 for v; do
436 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
437 done
438 }
439
440 filter_out(){
441 pat=$1
442 shift
443 for v; do
444 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
445 done
446 }
447
448 map(){
449 m=$1
450 shift
451 for v; do eval $m; done
452 }
453
454 add_suffix(){
455 suffix=$1
456 shift
457 for v; do echo ${v}${suffix}; done
458 }
459
460 set_all(){
461 value=$1
462 shift
463 for var in $*; do
464 eval $var=$value
465 done
466 }
467
468 set_weak(){
469 value=$1
470 shift
471 for var; do
472 eval : \${$var:=$value}
473 done
474 }
475
476 sanitize_var_name(){
477 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
478 }
479
480 set_sanitized(){
481 var=$1
482 shift
483 eval $(sanitize_var_name "$var")='$*'
484 }
485
486 get_sanitized(){
487 eval echo \$$(sanitize_var_name "$1")
488 }
489
490 pushvar(){
491 for pvar in $*; do
492 eval level=\${${pvar}_level:=0}
493 eval ${pvar}_${level}="\$$pvar"
494 eval ${pvar}_level=$(($level+1))
495 done
496 }
497
498 popvar(){
499 for pvar in $*; do
500 eval level=\${${pvar}_level:-0}
501 test $level = 0 && continue
502 eval level=$(($level-1))
503 eval $pvar="\${${pvar}_${level}}"
504 eval ${pvar}_level=$level
505 eval unset ${pvar}_${level}
506 done
507 }
508
509 enable(){
510 set_all yes $*
511 }
512
513 disable(){
514 set_all no $*
515 }
516
517 enable_weak(){
518 set_weak yes $*
519 }
520
521 disable_weak(){
522 set_weak no $*
523 }
524
525 enable_sanitized(){
526 for var; do
527 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 disable_sanitized(){
532 for var; do
533 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
534 done
535 }
536
537 do_enable_deep(){
538 for var; do
539 enabled $var && continue
540 eval sel="\$${var}_select"
541 eval sgs="\$${var}_suggest"
542 pushvar var sgs
543 enable_deep $sel
544 popvar sgs
545 enable_deep_weak $sgs
546 popvar var
547 done
548 }
549
550 enable_deep(){
551 do_enable_deep $*
552 enable $*
553 }
554
555 enable_deep_weak(){
556 for var; do
557 disabled $var && continue
558 pushvar var
559 do_enable_deep $var
560 popvar var
561 enable_weak $var
562 done
563 }
564
565 enabled(){
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xyes"
568 }
569
570 disabled(){
571 test "${1#!}" = "$1" && op== || op=!=
572 eval test "x\$${1#!}" $op "xno"
573 }
574
575 enabled_all(){
576 for opt; do
577 enabled $opt || return 1
578 done
579 }
580
581 disabled_all(){
582 for opt; do
583 disabled $opt || return 1
584 done
585 }
586
587 enabled_any(){
588 for opt; do
589 enabled $opt && return 0
590 done
591 }
592
593 disabled_any(){
594 for opt; do
595 disabled $opt && return 0
596 done
597 return 1
598 }
599
600 set_default(){
601 for opt; do
602 eval : \${$opt:=\$${opt}_default}
603 done
604 }
605
606 is_in(){
607 value=$1
608 shift
609 for var in $*; do
610 [ $var = $value ] && return 0
611 done
612 return 1
613 }
614
615 check_deps(){
616 for cfg; do
617 enabled ${cfg}_checking && die "Circular dependency for $cfg."
618 disabled ${cfg}_checking && continue
619 enable ${cfg}_checking
620 append allopts $cfg
621
622 eval dep_all="\$${cfg}_deps"
623 eval dep_any="\$${cfg}_deps_any"
624 eval dep_con="\$${cfg}_conflict"
625 eval dep_sel="\$${cfg}_select"
626 eval dep_sgs="\$${cfg}_suggest"
627 eval dep_ifa="\$${cfg}_if"
628 eval dep_ifn="\$${cfg}_if_any"
629
630 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
631 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
632 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
633
634 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
635 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
636 enabled_all $dep_all || disable $cfg
637 enabled_any $dep_any || disable $cfg
638 disabled_all $dep_con || disable $cfg
639 disabled_any $dep_sel && disable $cfg
640
641 if enabled $cfg; then
642 enable_deep $dep_sel
643 enable_deep_weak $dep_sgs
644 for dep in $dep_all $dep_any $dep_sgs; do
645 # filter out library deps, these do not belong in extralibs
646 is_in $dep $LIBRARY_LIST && continue
647 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648 done
649 fi
650
651 disable ${cfg}_checking
652 done
653 }
654
655 print_config(){
656 pfx=$1
657 files=$2
658 shift 2
659 map 'eval echo "$v \${$v:-no}"' "$@" |
660 awk "BEGIN { split(\"$files\", files) }
661 {
662 c = \"$pfx\" toupper(\$1);
663 v = \$2;
664 sub(/yes/, 1, v);
665 sub(/no/, 0, v);
666 for (f in files) {
667 file = files[f];
668 if (file ~ /\\.h\$/) {
669 printf(\"#define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.asm\$/) {
671 printf(\"%%define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.mak\$/) {
673 n = -v ? \"\" : \"!\";
674 printf(\"%s%s=yes\\n\", n, c) >>file;
675 }
676 }
677 }"
678 }
679
680 print_enabled(){
681 suf=$1
682 shift
683 for v; do
684 enabled $v && printf "%s\n" ${v%$suf}
685 done
686 }
687
688 append(){
689 var=$1
690 shift
691 eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695 var=$1
696 shift
697 eval "$var=\"$* \$$var\""
698 }
699
700 unique(){
701 var=$1
702 uniq_list=""
703 for tok in $(eval echo \$$var); do
704 uniq_list="$(filter_out $tok $uniq_list) $tok"
705 done
706 eval "$var=\"${uniq_list}\""
707 }
708
709 resolve(){
710 var=$1
711 tmpvar=
712 for entry in $(eval echo \$$var); do
713 tmpvar="$tmpvar $(eval echo \$${entry})"
714 done
715 eval "$var=\"${tmpvar}\""
716 }
717
718 add_cppflags(){
719 append CPPFLAGS "$@"
720 }
721
722 add_cflags(){
723 append CFLAGS $($cflags_filter "$@")
724 }
725
726 add_cflags_headers(){
727 append CFLAGS_HEADERS $($cflags_filter "$@")
728 }
729
730 add_asflags(){
731 append ASFLAGS $($asflags_filter "$@")
732 }
733
734 add_objcflags(){
735 append OBJCFLAGS $($objcflags_filter "$@")
736 }
737
738 add_ldflags(){
739 append LDFLAGS $($ldflags_filter "$@")
740 }
741
742 add_ldexeflags(){
743 append LDEXEFLAGS $($ldflags_filter "$@")
744 }
745
746 add_stripflags(){
747 append STRIPFLAGS "$@"
748 }
749
750 add_extralibs(){
751 prepend extralibs $($ldflags_filter "$@")
752 }
753
754 add_host_cppflags(){
755 append host_cppflags "$@"
756 }
757
758 add_host_cflags(){
759 append host_cflags $($host_cflags_filter "$@")
760 }
761
762 add_host_ldflags(){
763 append host_ldflags $($host_ldflags_filter "$@")
764 }
765
766 add_compat(){
767 append compat_objs $1
768 shift
769 map 'add_cppflags -D$v' "$@"
770 }
771
772 check_cmd(){
773 log "$@"
774 "$@" >> $logfile 2>&1
775 }
776
777 cc_o(){
778 eval printf '%s\\n' $CC_O
779 }
780
781 cc_e(){
782 eval printf '%s\\n' $CC_E
783 }
784
785 check_cc(){
786 log check_cc "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
790 }
791
792 check_objcc(){
793 log check_objcc "$@"
794 cat > $TMPC
795 log_file $TMPC
796 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
797 }
798
799 check_cpp(){
800 log check_cpp "$@"
801 cat > $TMPC
802 log_file $TMPC
803 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
804 }
805
806 as_o(){
807 eval printf '%s\\n' $AS_O
808 }
809
810 check_as(){
811 log check_as "$@"
812 cat > $TMPS
813 log_file $TMPS
814 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
815 }
816
817 check_inline_asm(){
818 log check_inline_asm "$@"
819 name="$1"
820 code="$2"
821 shift 2
822 disable $name
823 check_cc "$@" <<EOF && enable $name
824 void foo(void){ __asm__ volatile($code); }
825 EOF
826 }
827
828 check_insn(){
829 log check_insn "$@"
830 check_inline_asm ${1}_inline "\"$2\""
831 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
832 }
833
834 check_x86asm(){
835 log check_x86asm "$@"
836 echo "$1" > $TMPS
837 log_file $TMPS
838 shift 1
839 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
840 }
841
842 ld_o(){
843 eval printf '%s\\n' $LD_O
844 }
845
846 check_ld(){
847 log check_ld "$@"
848 flags=$(filter_out '-l*' "$@")
849 libs=$(filter '-l*' "$@")
850 check_cc $($cflags_filter $flags) || return
851 flags=$($ldflags_filter $flags)
852 libs=$($ldflags_filter $libs)
853 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
854 }
855
856 print_include(){
857 hdr=$1
858 test "${hdr%.h}" = "${hdr}" &&
859 echo "#include $hdr" ||
860 echo "#include <$hdr>"
861 }
862
863 check_code(){
864 log check_code "$@"
865 check=$1
866 headers=$2
867 code=$3
868 shift 3
869 {
870 for hdr in $headers; do
871 print_include $hdr
872 done
873 echo "int main(void) { $code; return 0; }"
874 } | check_$check "$@"
875 }
876
877 check_cppflags(){
878 log check_cppflags "$@"
879 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
880 #include <stdlib.h>;
881 EOF
882 }
883
884 test_cflags(){
885 log test_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_cc "$@" <<EOF
888 int x;
889 EOF
890 }
891
892 check_cflags(){
893 log check_cflags "$@"
894 test_cflags "$@" && add_cflags "$@"
895 }
896
897 test_objcflags(){
898 log test_objcflags "$@"
899 set -- $($objcflags_filter "$@")
900 check_objcc "$@" <<EOF
901 int x;
902 EOF
903 }
904
905 check_objcflags(){
906 log check_objcflags "$@"
907 test_objcflags "$@" && add_objcflags "$@"
908 }
909
910 test_ldflags(){
911 log test_ldflags "$@"
912 check_ld "$@" <<EOF
913 int main(void){ return 0; }
914 EOF
915 }
916
917 check_ldflags(){
918 log check_ldflags "$@"
919 test_ldflags "$@" && add_ldflags "$@"
920 }
921
922 test_stripflags(){
923 log test_stripflags "$@"
924 # call check_cc to get a fresh TMPO
925 check_cc <<EOF
926 int main(void) { return 0; }
927 EOF
928 check_cmd $strip $STRIPFLAGS "$@" $TMPO
929 }
930
931 check_stripflags(){
932 log check_stripflags "$@"
933 test_stripflags "$@" && add_stripflags "$@"
934 }
935
936 check_header(){
937 log check_header "$@"
938 header=$1
939 shift
940 disable_sanitized $header
941 check_cpp "$@" <<EOF && enable_sanitized $header
942 #include <$header>
943 int x;
944 EOF
945 }
946
947 check_func(){
948 log check_func "$@"
949 func=$1
950 shift
951 disable $func
952 check_ld "$@" <<EOF && enable $func
953 extern int $func();
954 int main(void){ $func(); }
955 EOF
956 }
957
958 check_mathfunc(){
959 log check_mathfunc "$@"
960 func=$1
961 narg=$2
962 shift 2
963 test $narg = 2 && args="f, g" || args="f"
964 disable $func
965 check_ld "$@" <<EOF && enable $func
966 #include <math.h>
967 float foo(float f, float g) { return $func($args); }
968 int main(void){ return 0; }
969 EOF
970 }
971
972 check_func_headers(){
973 log check_func_headers "$@"
974 headers=$1
975 funcs=$2
976 shift 2
977 {
978 for hdr in $headers; do
979 print_include $hdr
980 done
981 for func in $funcs; do
982 echo "long check_$func(void) { return (long) $func; }"
983 done
984 echo "int main(void) { return 0; }"
985 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
986 }
987
988 check_cpp_condition(){
989 log check_cpp_condition "$@"
990 header=$1
991 condition=$2
992 shift 2
993 check_cpp "$@" <<EOF
994 #include <$header>
995 #if !($condition)
996 #error "unsatisfied condition: $condition"
997 #endif
998 EOF
999 }
1000
1001 test_cflags_cpp(){
1002 log test_cflags_cpp "$@"
1003 flags=$1
1004 condition=$2
1005 shift 2
1006 set -- $($cflags_filter "$flags")
1007 check_cpp "$@" <<EOF
1008 #if !($condition)
1009 #error "unsatisfied condition: $condition"
1010 #endif
1011 EOF
1012 }
1013
1014 check_lib(){
1015 log check_lib "$@"
1016 name="$1"
1017 headers="$2"
1018 funcs="$3"
1019 shift 3
1020 disable $name
1021 check_func_headers "$headers" "$funcs" "$@" &&
1022 enable $name && eval ${name}_extralibs="\$@"
1023 }
1024
1025 check_pkg_config(){
1026 log check_pkg_config "$@"
1027 name="$1"
1028 pkg_version="$2"
1029 pkg="${2%% *}"
1030 headers="$3"
1031 funcs="$4"
1032 shift 4
1033 disable $name
1034 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1035 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1036 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1037 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1038 enable $name &&
1039 add_cflags "$pkg_cflags" &&
1040 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1041 }
1042
1043 check_exec(){
1044 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1045 }
1046
1047 check_exec_crash(){
1048 log check_exec_crash "$@"
1049 code=$(cat)
1050
1051 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1052 # are safe but may not be available everywhere. Thus we use
1053 # raise(SIGTERM) instead. The check is run in a subshell so we
1054 # can redirect the "Terminated" message from the shell. SIGBUS
1055 # is not defined by standard C so it is used conditionally.
1056
1057 (check_exec "$@") >> $logfile 2>&1 <<EOF
1058 #include <signal.h>
1059 static void sighandler(int sig){
1060 raise(SIGTERM);
1061 }
1062 int foo(void){
1063 $code
1064 }
1065 int (*func_ptr)(void) = foo;
1066 int main(void){
1067 signal(SIGILL, sighandler);
1068 signal(SIGFPE, sighandler);
1069 signal(SIGSEGV, sighandler);
1070 #ifdef SIGBUS
1071 signal(SIGBUS, sighandler);
1072 #endif
1073 return func_ptr();
1074 }
1075 EOF
1076 }
1077
1078 check_type(){
1079 log check_type "$@"
1080 headers=$1
1081 type=$2
1082 shift 2
1083 disable_sanitized "$type"
1084 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1085 }
1086
1087 check_struct(){
1088 log check_struct "$@"
1089 headers=$1
1090 struct=$2
1091 member=$3
1092 shift 3
1093 disable_sanitized "${struct}_${member}"
1094 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1095 enable_sanitized "${struct}_${member}"
1096 }
1097
1098 check_builtin(){
1099 log check_builtin "$@"
1100 name=$1
1101 headers=$2
1102 builtin=$3
1103 shift 3
1104 disable "$name"
1105 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1106 }
1107
1108 check_compile_assert(){
1109 log check_compile_assert "$@"
1110 name=$1
1111 headers=$2
1112 condition=$3
1113 shift 3
1114 disable "$name"
1115 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1116 }
1117
1118 require(){
1119 log require "$@"
1120 name_version="$1"
1121 name="${1%% *}"
1122 headers="$2"
1123 func="$3"
1124 shift 3
1125 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1126 }
1127
1128 require_header(){
1129 log require "$@"
1130 header="$1"
1131 shift
1132 check_header "$header" "$@" || die "ERROR: $header not found"
1133 }
1134
1135 require_cpp_condition(){
1136 log require "$@"
1137 header="$1"
1138 condition="$2"
1139 shift 2
1140 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1141 }
1142
1143 require_pkg_config(){
1144 log require_pkg_config "$@"
1145 pkg_version="$2"
1146 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1147 }
1148
1149 hostcc_e(){
1150 eval printf '%s\\n' $HOSTCC_E
1151 }
1152
1153 hostcc_o(){
1154 eval printf '%s\\n' $HOSTCC_O
1155 }
1156
1157 check_host_cc(){
1158 log check_host_cc "$@"
1159 cat > $TMPC
1160 log_file $TMPC
1161 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1162 }
1163
1164 check_host_cpp(){
1165 log check_host_cpp "$@"
1166 cat > $TMPC
1167 log_file $TMPC
1168 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1169 }
1170
1171 check_host_cppflags(){
1172 log check_host_cppflags "$@"
1173 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1174 #include <stdlib.h>;
1175 EOF
1176 }
1177
1178 check_host_cflags(){
1179 log check_host_cflags "$@"
1180 set -- $($host_cflags_filter "$@")
1181 check_host_cc "$@" <<EOF && append host_cflags "$@"
1182 int x;
1183 EOF
1184 }
1185
1186 check_host_cpp_condition(){
1187 log check_host_cpp_condition "$@"
1188 header=$1
1189 condition=$2
1190 shift 2
1191 check_host_cpp "$@" <<EOF
1192 #include <$header>
1193 #if !($condition)
1194 #error "unsatisfied condition: $condition"
1195 #endif
1196 EOF
1197 }
1198
1199 apply(){
1200 file=$1
1201 shift
1202 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1203 }
1204
1205 cp_if_changed(){
1206 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1207 mkdir -p "$(dirname $2)"
1208 cp -f "$1" "$2"
1209 }
1210
1211 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1212 # system-dependent things.
1213
1214 AVCODEC_COMPONENTS="
1215 bsfs
1216 decoders
1217 encoders
1218 hwaccels
1219 parsers
1220 "
1221
1222 AVDEVICE_COMPONENTS="
1223 indevs
1224 outdevs
1225 "
1226 AVFILTER_COMPONENTS="
1227 filters
1228 "
1229 AVFORMAT_COMPONENTS="
1230 demuxers
1231 muxers
1232 protocols
1233 "
1234
1235 AVRESAMPLE_COMPONENTS=""
1236 AVUTIL_COMPONENTS=""
1237
1238 COMPONENT_LIST="
1239 $AVCODEC_COMPONENTS
1240 $AVDEVICE_COMPONENTS
1241 $AVFILTER_COMPONENTS
1242 $AVFORMAT_COMPONENTS
1243 $AVRESAMPLE_COMPONENTS
1244 $AVUTIL_COMPONENTS
1245 "
1246
1247 EXAMPLE_LIST="
1248 decode_audio_example
1249 decode_video_example
1250 encode_audio_example
1251 encode_video_example
1252 filter_audio_example
1253 metadata_example
1254 output_example
1255 qsvdec_example
1256 transcode_aac_example
1257 "
1258
1259 # catchall list of things that require external libs to link
1260 EXTRALIBS_LIST="
1261 cpu_init
1262 cws2fws
1263 "
1264
1265 HWACCEL_LIBRARY_NONFREE_LIST="
1266 cuda
1267 libnpp
1268 "
1269 HWACCEL_LIBRARY_LIST="
1270 $HWACCEL_LIBRARY_NONFREE_LIST
1271 d3d11va
1272 dxva2
1273 libmfx
1274 mmal
1275 nvenc
1276 omx
1277 vaapi
1278 vda
1279 vdpau
1280 "
1281
1282 EXTERNAL_LIBRARY_GPL_LIST="
1283 libcdio
1284 libx264
1285 libx265
1286 libxavs
1287 libxvid
1288 "
1289
1290 EXTERNAL_LIBRARY_NONFREE_LIST="
1291 libfaac
1292 libfdk_aac
1293 openssl
1294 "
1295
1296 EXTERNAL_LIBRARY_VERSION3_LIST="
1297 libopencore_amrnb
1298 libopencore_amrwb
1299 libvo_aacenc
1300 libvo_amrwbenc
1301 "
1302
1303 EXTERNAL_LIBRARY_LIST="
1304 $EXTERNAL_LIBRARY_GPL_LIST
1305 $EXTERNAL_LIBRARY_NONFREE_LIST
1306 $EXTERNAL_LIBRARY_VERSION3_LIST
1307 avisynth
1308 avxsynth
1309 frei0r
1310 gnutls
1311 libbs2b
1312 libdc1394
1313 libdcadec
1314 libfontconfig
1315 libfreetype
1316 libgsm
1317 libhdcd
1318 libilbc
1319 libjack
1320 libkvazaar
1321 libmp3lame
1322 libopencv
1323 libopenh264
1324 libopenjpeg
1325 libopus
1326 libpulse
1327 librtmp
1328 libschroedinger
1329 libsnappy
1330 libspeex
1331 libtheora
1332 libtwolame
1333 libvorbis
1334 libvpx
1335 libwavpack
1336 libwebp
1337 libxcb
1338 libxcb_shm
1339 libxcb_xfixes
1340 "
1341
1342 SYSTEM_LIBRARY_LIST="
1343 bzlib
1344 zlib
1345 "
1346
1347 FEATURE_LIST="
1348 gray
1349 hardcoded_tables
1350 omx_rpi
1351 runtime_cpudetect
1352 safe_bitstream_reader
1353 shared
1354 small
1355 sram
1356 static
1357 swscale_alpha
1358 "
1359
1360 LIBRARY_LIST="
1361 avcodec
1362 avdevice
1363 avfilter
1364 avformat
1365 avresample
1366 avutil
1367 swscale
1368 "
1369
1370 LICENSE_LIST="
1371 gpl
1372 nonfree
1373 version3
1374 "
1375
1376 PROGRAM_LIST="
1377 avconv
1378 avplay
1379 avprobe
1380 "
1381
1382 SUBSYSTEM_LIST="
1383 dct
1384 doc
1385 error_resilience
1386 faan
1387 fft
1388 lsp
1389 lzo
1390 mdct
1391 network
1392 rdft
1393 "
1394
1395 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1396 CONFIG_LIST="
1397 $EXAMPLE_LIST
1398 $EXTERNAL_LIBRARY_LIST
1399 $HWACCEL_LIBRARY_LIST
1400 $FEATURE_LIST
1401 $LICENSE_LIST
1402 $LIBRARY_LIST
1403 $PROGRAM_LIST
1404 $SUBSYSTEM_LIST
1405 $SYSTEM_LIBRARY_LIST
1406 neon_clobber_test
1407 pic
1408 pod2man
1409 texi2html
1410 thumb
1411 valgrind_backtrace
1412 xmm_clobber_test
1413 $COMPONENT_LIST
1414 "
1415
1416 THREADS_LIST="
1417 pthreads
1418 w32threads
1419 "
1420
1421 ATOMICS_LIST="
1422 atomics_gcc
1423 atomics_suncc
1424 atomics_win32
1425 "
1426
1427 ARCH_LIST="
1428 aarch64
1429 alpha
1430 arm
1431 avr32
1432 avr32_ap
1433 avr32_uc
1434 bfin
1435 ia64
1436 m68k
1437 mips
1438 mips64
1439 parisc
1440 ppc
1441 ppc64
1442 s390
1443 sh4
1444 sparc
1445 sparc64
1446 tilegx
1447 tilepro
1448 tomi
1449 x86
1450 x86_32
1451 x86_64
1452 "
1453
1454 ARCH_EXT_LIST_ARM="
1455 armv5te
1456 armv6
1457 armv6t2
1458 armv8
1459 neon
1460 vfp
1461 vfpv3
1462 "
1463
1464 ARCH_EXT_LIST_X86_SIMD="
1465 amd3dnow
1466 amd3dnowext
1467 avx
1468 avx2
1469 fma3
1470 fma4
1471 mmx
1472 mmxext
1473 sse
1474 sse2
1475 sse3
1476 sse4
1477 sse42
1478 ssse3
1479 xop
1480 "
1481
1482 ARCH_EXT_LIST_PPC="
1483 altivec
1484 dcbzl
1485 ldbrx
1486 power8
1487 ppc4xx
1488 vsx
1489 "
1490
1491 ARCH_EXT_LIST_X86="
1492 $ARCH_EXT_LIST_X86_SIMD
1493 cpunop
1494 i686
1495 "
1496
1497 ARCH_EXT_LIST_MIPS="
1498 loongson
1499 mips32r1
1500 mips64r1
1501 mips32r2
1502 mips64r2
1503 mips32r6
1504 mips64r6
1505 "
1506
1507 ARCH_EXT_LIST="
1508 $ARCH_EXT_LIST_ARM
1509 $ARCH_EXT_LIST_MIPS
1510 $ARCH_EXT_LIST_PPC
1511 $ARCH_EXT_LIST_X86
1512 vis
1513 "
1514
1515 ARCH_FEATURES="
1516 aligned_stack
1517 fast_64bit
1518 fast_clz
1519 fast_cmov
1520 local_aligned_8
1521 local_aligned_16
1522 local_aligned_32
1523 simd_align_16
1524 simd_align_32
1525 "
1526
1527 BUILTIN_LIST="
1528 atomic_cas_ptr
1529 machine_rw_barrier
1530 MemoryBarrier
1531 mm_empty
1532 rdtsc
1533 sem_timedwait
1534 sync_val_compare_and_swap
1535 "
1536 HAVE_LIST_CMDLINE="
1537 inline_asm
1538 symver
1539 x86asm
1540 "
1541
1542 HAVE_LIST_PUB="
1543 bigendian
1544 fast_unaligned
1545 "
1546
1547 HEADERS_LIST="
1548 AVFoundation_AVFoundation_h
1549 alsa_asoundlib_h
1550 altivec_h
1551 arpa_inet_h
1552 cdio_paranoia_h
1553 cdio_paranoia_paranoia_h
1554 d3d11_h
1555 dispatch_dispatch_h
1556 dev_bktr_ioctl_bt848_h
1557 dev_bktr_ioctl_meteor_h
1558 dev_ic_bt8xx_h
1559 dev_video_bktr_ioctl_bt848_h
1560 dev_video_meteor_ioctl_meteor_h
1561 direct_h
1562 dlfcn_h
1563 dxva_h
1564 gsm_h
1565 io_h
1566 mach_mach_time_h
1567 machine_ioctl_bt848_h
1568 machine_ioctl_meteor_h
1569 malloc_h
1570 poll_h
1571 sndio_h
1572 soundcard_h
1573 stdatomic_h
1574 sys_mman_h
1575 sys_param_h
1576 sys_resource_h
1577 sys_select_h
1578 sys_soundcard_h
1579 sys_time_h
1580 sys_un_h
1581 sys_videoio_h
1582 unistd_h
1583 valgrind_valgrind_h
1584 windows_h
1585 winsock2_h
1586 "
1587
1588 INTRINSICS_LIST="
1589 intrinsics_neon
1590 "
1591
1592 MATH_FUNCS="
1593 atanf
1594 atan2f
1595 cbrtf
1596 cosf
1597 exp2
1598 exp2f
1599 expf
1600 isinf
1601 isnan
1602 ldexpf
1603 llrint
1604 llrintf
1605 log2
1606 log2f
1607 log10f
1608 lrint
1609 lrintf
1610 powf
1611 rint
1612 round
1613 roundf
1614 sinf
1615 trunc
1616 truncf
1617 "
1618
1619 SYSTEM_FUNCS="
1620 aligned_malloc
1621 clock_gettime
1622 closesocket
1623 CommandLineToArgvW
1624 CoTaskMemFree
1625 CryptGenRandom
1626 fcntl
1627 flt_lim
1628 fork
1629 getaddrinfo
1630 gethrtime
1631 getopt
1632 GetProcessAffinityMask
1633 GetProcessMemoryInfo
1634 GetProcessTimes
1635 getrusage
1636 GetSystemTimeAsFileTime
1637 gettimeofday
1638 gmtime_r
1639 inet_aton
1640 isatty
1641 LoadLibrary
1642 localtime_r
1643 mach_absolute_time
1644 MapViewOfFile
1645 memalign
1646 mkstemp
1647 mmap
1648 mprotect
1649 nanosleep
1650 posix_memalign
1651 sched_getaffinity
1652 SetConsoleTextAttribute
1653 setmode
1654 setrlimit
1655 Sleep
1656 strerror_r
1657 sysconf
1658 sysctl
1659 usleep
1660 VirtualAlloc
1661 "
1662
1663 TOOLCHAIN_FEATURES="
1664 as_arch_directive
1665 as_fpu_directive
1666 as_func
1667 as_object_arch
1668 asm_mod_q
1669 attribute_may_alias
1670 attribute_packed
1671 blocks_extension
1672 ebp_available
1673 ebx_available
1674 gnu_as
1675 ibm_asm
1676 inline_asm_labels
1677 pragma_deprecated
1678 symver_asm_label
1679 symver_gnu_asm
1680 vfp_args
1681 xform_asm
1682 xmm_clobbers
1683 "
1684
1685 TYPES_LIST="
1686 CONDITION_VARIABLE_Ptr
1687 socklen_t
1688 struct_addrinfo
1689 struct_group_source_req
1690 struct_ip_mreq_source
1691 struct_ipv6_mreq
1692 struct_pollfd
1693 struct_rusage_ru_maxrss
1694 struct_sockaddr_in6
1695 struct_sockaddr_sa_len
1696 struct_sockaddr_storage
1697 struct_v4l2_frmivalenum_discrete
1698 "
1699
1700 HAVE_LIST="
1701 $ARCH_EXT_LIST
1702 $(add_suffix _external $ARCH_EXT_LIST)
1703 $(add_suffix _inline $ARCH_EXT_LIST)
1704 $ARCH_FEATURES
1705 $BUILTIN_LIST
1706 $HAVE_LIST_CMDLINE
1707 $HAVE_LIST_PUB
1708 $HEADERS_LIST
1709 $INTRINSICS_LIST
1710 $MATH_FUNCS
1711 $SYSTEM_FUNCS
1712 $THREADS_LIST
1713 $TOOLCHAIN_FEATURES
1714 $TYPES_LIST
1715 dos_paths
1716 dxva2_lib
1717 libc_msvcrt
1718 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1719 sdl
1720 section_data_rel_ro
1721 threads
1722 vaapi_drm
1723 vaapi_x11
1724 vdpau_x11
1725 "
1726
1727 # options emitted with CONFIG_ prefix but not available on the command line
1728 CONFIG_EXTRA="
1729 aandcttables
1730 ac3dsp
1731 adts_header
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="adts_header 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 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2077 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2078 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2079 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2080 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2081 mpeg4_encoder_select="h263_encoder"
2082 msa1_decoder_select="mss34dsp"
2083 msmpeg4v1_decoder_select="h263_decoder"
2084 msmpeg4v2_decoder_select="h263_decoder"
2085 msmpeg4v2_encoder_select="h263_encoder"
2086 msmpeg4v3_decoder_select="h263_decoder"
2087 msmpeg4v3_encoder_select="h263_encoder"
2088 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2089 mts2_decoder_select="mss34dsp"
2090 mxpeg_decoder_select="mjpeg_decoder"
2091 nellymoser_decoder_select="mdct sinewin"
2092 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2093 nuv_decoder_select="idctdsp lzo"
2094 on2avc_decoder_select="mdct"
2095 opus_decoder_deps="avresample"
2096 opus_decoder_select="imdct15"
2097 png_decoder_deps="zlib"
2098 png_encoder_deps="zlib"
2099 png_encoder_select="huffyuvencdsp"
2100 prores_decoder_select="idctdsp"
2101 prores_encoder_select="fdctdsp"
2102 qcelp_decoder_select="lsp"
2103 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2104 ra_144_encoder_select="audio_frame_queue lpc"
2105 ralf_decoder_select="golomb"
2106 rscc_decoder_deps="zlib"
2107 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2108 rv10_encoder_select="h263_encoder"
2109 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2110 rv20_encoder_select="h263_encoder"
2111 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2112 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2113 screenpresso_decoder_deps="zlib"
2114 sipr_decoder_select="lsp"
2115 sp5x_decoder_select="mjpeg_decoder"
2116 svq1_decoder_select="hpeldsp"
2117 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2118 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2119 svq3_decoder_suggest="zlib"
2120 tak_decoder_select="audiodsp"
2121 tdsc_decoder_deps="zlib"
2122 tdsc_decoder_select="mjpeg_decoder"
2123 theora_decoder_select="vp3_decoder"
2124 thp_decoder_select="mjpeg_decoder"
2125 tiff_decoder_suggest="zlib"
2126 tiff_encoder_suggest="zlib"
2127 truehd_decoder_select="mlp_decoder"
2128 truemotion2_decoder_select="bswapdsp"
2129 truespeech_decoder_select="bswapdsp"
2130 tscc_decoder_deps="zlib"
2131 txd_decoder_select="texturedsp"
2132 twinvq_decoder_select="mdct lsp sinewin"
2133 utvideo_decoder_select="bswapdsp huffyuvdsp"
2134 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2135 vble_decoder_select="huffyuvdsp"
2136 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2137 vc1image_decoder_select="vc1_decoder"
2138 vorbis_decoder_select="mdct"
2139 vorbis_encoder_select="mdct"
2140 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2141 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2142 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2143 vp6a_decoder_select="vp6_decoder"
2144 vp6f_decoder_select="vp6_decoder"
2145 vp7_decoder_select="h264pred videodsp vp8dsp"
2146 vp8_decoder_select="h264pred videodsp vp8dsp"
2147 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2148 webp_decoder_select="vp8_decoder"
2149 wmapro_decoder_select="mdct sinewin wma_freqs"
2150 wmav1_decoder_select="mdct sinewin wma_freqs"
2151 wmav1_encoder_select="mdct sinewin wma_freqs"
2152 wmav2_decoder_select="mdct sinewin wma_freqs"
2153 wmav2_encoder_select="mdct sinewin wma_freqs"
2154 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2155 wmv1_decoder_select="h263_decoder"
2156 wmv1_encoder_select="h263_encoder"
2157 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2158 wmv2_encoder_select="h263_encoder wmv2dsp"
2159 wmv3_decoder_select="vc1_decoder"
2160 wmv3image_decoder_select="wmv3_decoder"
2161 zerocodec_decoder_deps="zlib"
2162 zlib_decoder_deps="zlib"
2163 zlib_encoder_deps="zlib"
2164 zmbv_decoder_deps="zlib"
2165 zmbv_encoder_deps="zlib"
2166
2167 # hardware accelerators
2168 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2169 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2170 dxva2_lib_deps="dxva2"
2171 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2172 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2173
2174 h263_vaapi_hwaccel_deps="vaapi"
2175 h263_vaapi_hwaccel_select="h263_decoder"
2176 h264_d3d11va_hwaccel_deps="d3d11va"
2177 h264_d3d11va_hwaccel_select="h264_decoder"
2178 h264_dxva2_hwaccel_deps="dxva2"
2179 h264_dxva2_hwaccel_select="h264_decoder"
2180 h264_mmal_hwaccel_deps="mmal"
2181 h264_qsv_hwaccel_deps="libmfx"
2182 h264_vaapi_hwaccel_deps="vaapi"
2183 h264_vaapi_hwaccel_select="h264_decoder"
2184 h264_vda_hwaccel_deps="vda"
2185 h264_vda_hwaccel_select="h264_decoder"
2186 h264_vda_old_hwaccel_deps="vda"
2187 h264_vda_old_hwaccel_select="h264_decoder"
2188 h264_vdpau_hwaccel_deps="vdpau"
2189 h264_vdpau_hwaccel_select="h264_decoder"
2190 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2191 hevc_d3d11va_hwaccel_select="hevc_decoder"
2192 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2193 hevc_dxva2_hwaccel_select="hevc_decoder"
2194 hevc_qsv_hwaccel_deps="libmfx"
2195 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2196 hevc_vaapi_hwaccel_select="hevc_decoder"
2197 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2198 hevc_vdpau_hwaccel_select="hevc_decoder"
2199 mpeg1_vdpau_hwaccel_deps="vdpau"
2200 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2201 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2202 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2203 mpeg2_dxva2_hwaccel_deps="dxva2"
2204 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2205 mpeg2_mmal_hwaccel_deps="mmal"
2206 mpeg2_qsv_hwaccel_deps="libmfx"
2207 mpeg2_vaapi_hwaccel_deps="vaapi"
2208 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2209 mpeg2_vdpau_hwaccel_deps="vdpau"
2210 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2211 mpeg4_vaapi_hwaccel_deps="vaapi"
2212 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2213 mpeg4_vdpau_hwaccel_deps="vdpau"
2214 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2215 vc1_d3d11va_hwaccel_deps="d3d11va"
2216 vc1_d3d11va_hwaccel_select="vc1_decoder"
2217 vc1_dxva2_hwaccel_deps="dxva2"
2218 vc1_dxva2_hwaccel_select="vc1_decoder"
2219 vc1_mmal_hwaccel_deps="mmal"
2220 vc1_qsv_hwaccel_deps="libmfx"
2221 vc1_vaapi_hwaccel_deps="vaapi"
2222 vc1_vaapi_hwaccel_select="vc1_decoder"
2223 vc1_vdpau_hwaccel_deps="vdpau"
2224 vc1_vdpau_hwaccel_select="vc1_decoder"
2225 vp8_qsv_hwaccel_deps="libmfx"
2226 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2227 vp8_vaapi_hwaccel_select="vp8_decoder"
2228 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2229 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2230 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2231 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2232
2233 # hardware-accelerated codecs
2234 nvenc_deps_any="libdl LoadLibrary"
2235 omx_deps="libdl pthreads"
2236 omx_rpi_select="omx"
2237 qsvdec_select="qsv"
2238 qsvenc_select="qsv"
2239 vaapi_encode_deps="vaapi"
2240
2241 hwupload_cuda_filter_deps="cuda"
2242 scale_npp_filter_deps="cuda libnpp"
2243
2244 h264_mmal_decoder_deps="mmal"
2245 h264_nvenc_encoder_deps="nvenc"
2246 h264_omx_encoder_deps="omx"
2247 h264_qsv_decoder_deps="libmfx"
2248 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2249 h264_qsv_encoder_deps="libmfx"
2250 h264_qsv_encoder_select="qsvenc"
2251 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2252 h264_vaapi_encoder_select="vaapi_encode golomb"
2253 hevc_nvenc_encoder_deps="nvenc"
2254 hevc_qsv_decoder_deps="libmfx"
2255 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2256 hevc_qsv_encoder_deps="libmfx"
2257 hevc_qsv_encoder_select="hevc_ps qsvenc"
2258 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2259 hevc_vaapi_encoder_select="vaapi_encode golomb"
2260 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2261 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2262 mpeg2_mmal_decoder_deps="mmal"
2263 mpeg2_qsv_decoder_deps="libmfx"
2264 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2265 mpeg2_qsv_encoder_deps="libmfx"
2266 mpeg2_qsv_encoder_select="qsvenc"
2267 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2268 mpeg2_vaapi_encoder_select="vaapi_encode"
2269 mpeg4_omx_encoder_deps="omx"
2270 vc1_mmal_decoder_deps="mmal"
2271 vc1_qsv_decoder_deps="libmfx"
2272 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2273 vp8_qsv_decoder_deps="libmfx"
2274 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2275 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2276 vp8_vaapi_encoder_select="vaapi_encode"
2277 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2278 vp9_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 aac_parser_select="adts_header"
2285 h264_parser_select="golomb h264dsp h264parse"
2286 hevc_parser_select="hevc_ps"
2287 mpegaudio_parser_select="mpegaudioheader"
2288 mpegvideo_parser_select="mpegvideo"
2289 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2290 vc1_parser_select="vc1dsp"
2291
2292 # bitstream_filters
2293 aac_adtstoasc_bsf_select="adts_header"
2294 mjpeg2jpeg_bsf_select="jpegtables"
2295
2296 # external libraries
2297 avisynth_deps="LoadLibrary"
2298 avxsynth_deps="libdl"
2299 avisynth_demuxer_deps_any="avisynth avxsynth"
2300 avisynth_demuxer_select="riffdec"
2301 libdcadec_decoder_deps="libdcadec"
2302 libfaac_encoder_deps="libfaac"
2303 libfaac_encoder_select="audio_frame_queue"
2304 libfdk_aac_decoder_deps="libfdk_aac"
2305 libfdk_aac_encoder_deps="libfdk_aac"
2306 libfdk_aac_encoder_select="audio_frame_queue"
2307 libgsm_decoder_deps="libgsm"
2308 libgsm_encoder_deps="libgsm"
2309 libgsm_ms_decoder_deps="libgsm"
2310 libgsm_ms_encoder_deps="libgsm"
2311 libilbc_decoder_deps="libilbc"
2312 libilbc_encoder_deps="libilbc"
2313 libkvazaar_encoder_deps="libkvazaar"
2314 libmp3lame_encoder_deps="libmp3lame"
2315 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2316 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2317 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2318 libopencore_amrnb_encoder_select="audio_frame_queue"
2319 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2320 libopenh264_decoder_deps="libopenh264"
2321 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2322 libopenh264_encoder_deps="libopenh264"
2323 libopenjpeg_decoder_deps="libopenjpeg"
2324 libopenjpeg_encoder_deps="libopenjpeg"
2325 libopus_decoder_deps="libopus"
2326 libopus_encoder_deps="libopus"
2327 libopus_encoder_select="audio_frame_queue"
2328 libschroedinger_decoder_deps="libschroedinger"
2329 libschroedinger_encoder_deps="libschroedinger"
2330 libspeex_decoder_deps="libspeex"
2331 libspeex_encoder_deps="libspeex"
2332 libspeex_encoder_select="audio_frame_queue"
2333 libtheora_encoder_deps="libtheora"
2334 libtwolame_encoder_deps="libtwolame"
2335 libvo_aacenc_encoder_deps="libvo_aacenc"
2336 libvo_aacenc_encoder_select="audio_frame_queue"
2337 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2338 libvorbis_encoder_deps="libvorbis"
2339 libvorbis_encoder_select="audio_frame_queue"
2340 libvpx_vp8_decoder_deps="libvpx"
2341 libvpx_vp8_encoder_deps="libvpx"
2342 libvpx_vp9_decoder_deps="libvpx"
2343 libvpx_vp9_encoder_deps="libvpx"
2344 libwavpack_encoder_deps="libwavpack"
2345 libwavpack_encoder_select="audio_frame_queue"
2346 libwebp_encoder_deps="libwebp"
2347 libx262_encoder_deps="libx262"
2348 libx264_encoder_deps="libx264"
2349 libx265_encoder_deps="libx265"
2350 libxavs_encoder_deps="libxavs"
2351 libxvid_encoder_deps="libxvid mkstemp"
2352
2353 # demuxers / muxers
2354 ac3_demuxer_select="ac3_parser"
2355 asf_demuxer_select="riffdec"
2356 asf_muxer_select="riffenc"
2357 asf_stream_muxer_select="asf_muxer"
2358 avi_demuxer_select="iso_media riffdec"
2359 avi_muxer_select="riffenc"
2360 caf_demuxer_select="iso_media riffdec"
2361 dash_muxer_select="mp4_muxer"
2362 dirac_demuxer_select="dirac_parser"
2363 dv_demuxer_select="dvprofile"
2364 dv_muxer_select="dvprofile"
2365 dxa_demuxer_select="riffdec"
2366 eac3_demuxer_select="ac3_parser"
2367 f4v_muxer_select="mov_muxer"
2368 flac_demuxer_select="flac_parser"
2369 hds_muxer_select="flv_muxer"
2370 hls_muxer_select="mpegts_muxer"
2371 ipod_muxer_select="mov_muxer"
2372 ismv_muxer_select="mov_muxer"
2373 matroska_audio_muxer_select="matroska_muxer"
2374 matroska_demuxer_select="iso_media riffdec"
2375 matroska_demuxer_suggest="bzlib lzo zlib"
2376 matroska_muxer_select="iso_media riffenc"
2377 mmf_muxer_select="riffenc"
2378 mov_demuxer_select="iso_media riffdec"
2379 mov_demuxer_suggest="zlib"
2380 mov_muxer_select="iso_media riffenc rtpenc_chain"
2381 mp3_demuxer_select="mpegaudio_parser"
2382 mp3_muxer_select="mpegaudioheader"
2383 mp4_muxer_select="mov_muxer"
2384 mpegts_demuxer_select="iso_media"
2385 mpegts_muxer_select="adts_muxer latm_muxer"
2386 mpegtsraw_demuxer_select="mpegts_demuxer"
2387 mxf_d10_muxer_select="mxf_muxer"
2388 nut_muxer_select="riffenc"
2389 nuv_demuxer_select="riffdec"
2390 oga_muxer_select="ogg_muxer"
2391 ogg_demuxer_select="dirac_parse"
2392 opus_muxer_select="ogg_muxer"
2393 psp_muxer_select="mov_muxer"
2394 rtp_demuxer_select="sdp_demuxer"
2395 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2396 rtsp_demuxer_select="http_protocol rtpdec"
2397 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2398 sap_demuxer_select="sdp_demuxer"
2399 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2400 sdp_demuxer_select="rtpdec"
2401 smoothstreaming_muxer_select="ismv_muxer"
2402 spdif_demuxer_select="adts_header"
2403 spdif_muxer_select="adts_header"
2404 spx_muxer_select="ogg_muxer"
2405 swf_demuxer_suggest="zlib"
2406 tak_demuxer_select="tak_parser"
2407 tg2_muxer_select="mov_muxer"
2408 tgp_muxer_select="mov_muxer"
2409 w64_demuxer_select="wav_demuxer"
2410 wav_demuxer_select="riffdec"
2411 wav_muxer_select="riffenc"
2412 webm_muxer_select="iso_media riffenc"
2413 wtv_demuxer_select="mpegts_demuxer riffdec"
2414 xmv_demuxer_select="riffdec"
2415 xwma_demuxer_select="riffdec"
2416
2417 # indevs / outdevs
2418 alsa_indev_deps="alsa"
2419 alsa_outdev_deps="alsa"
2420 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2421 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2422 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2423 dv1394_indev_deps="dv1394"
2424 dv1394_indev_select="dv_demuxer"
2425 fbdev_indev_deps="linux_fb_h"
2426 jack_indev_deps="libjack"
2427 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2428 libcdio_indev_deps="libcdio"
2429 libdc1394_indev_deps="libdc1394"
2430 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2431 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2432 pulse_indev_deps="libpulse"
2433 sndio_indev_deps="sndio"
2434 sndio_outdev_deps="sndio"
2435 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2436 vfwcap_indev_deps="vfw32 vfwcap_defines"
2437 xcbgrab_indev_deps="libxcb libxcb_shape"
2438 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2439
2440 # protocols
2441 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2442 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2443 ffrtmpcrypt_protocol_select="tcp_protocol"
2444 ffrtmphttp_protocol_conflict="librtmp_protocol"
2445 ffrtmphttp_protocol_select="http_protocol"
2446 gopher_protocol_select="network"
2447 http_protocol_select="tcp_protocol"
2448 http_protocol_suggest="zlib"
2449 httpproxy_protocol_select="tcp_protocol"
2450 httpproxy_protocol_suggest="zlib"
2451 https_protocol_select="tls_protocol"
2452 https_protocol_suggest="zlib"
2453 icecast_protocol_select="http_protocol"
2454 librtmp_protocol_deps="librtmp"
2455 librtmpe_protocol_deps="librtmp"
2456 librtmps_protocol_deps="librtmp"
2457 librtmpt_protocol_deps="librtmp"
2458 librtmpte_protocol_deps="librtmp"
2459 mmsh_protocol_select="http_protocol"
2460 mmst_protocol_select="network"
2461 rtmp_protocol_conflict="librtmp_protocol"
2462 rtmp_protocol_select="tcp_protocol"
2463 rtmp_protocol_suggest="zlib"
2464 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2465 rtmpe_protocol_suggest="zlib"
2466 rtmps_protocol_conflict="librtmp_protocol"
2467 rtmps_protocol_select="tls_protocol"
2468 rtmps_protocol_suggest="zlib"
2469 rtmpt_protocol_select="ffrtmphttp_protocol"
2470 rtmpt_protocol_suggest="zlib"
2471 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2472 rtmpte_protocol_suggest="zlib"
2473 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2474 rtmpts_protocol_suggest="zlib"
2475 rtp_protocol_select="udp_protocol"
2476 sctp_protocol_deps="struct_sctp_event_subscribe"
2477 sctp_protocol_select="network"
2478 srtp_protocol_select="rtp_protocol srtp"
2479 tcp_protocol_select="network"
2480 tls_protocol_deps_any="gnutls openssl"
2481 tls_protocol_select="tcp_protocol"
2482 udp_protocol_select="network"
2483 unix_protocol_deps="sys_un_h"
2484 unix_protocol_select="network"
2485
2486 # filters
2487 asyncts_filter_deps="avresample"
2488 blackframe_filter_deps="gpl"
2489 boxblur_filter_deps="gpl"
2490 bs2b_filter_deps="libbs2b"
2491 cropdetect_filter_deps="gpl"
2492 deinterlace_qsv_filter_deps="libmfx"
2493 deinterlace_vaapi_filter_deps="vaapi"
2494 delogo_filter_deps="gpl"
2495 drawtext_filter_deps="libfreetype"
2496 drawtext_filter_suggest="libfontconfig"
2497 frei0r_filter_deps="frei0r libdl"
2498 frei0r_src_filter_deps="frei0r libdl"
2499 hdcd_filter_deps="libhdcd"
2500 hqdn3d_filter_deps="gpl"
2501 interlace_filter_deps="gpl"
2502 movie_filter_deps="avcodec avformat"
2503 ocv_filter_deps="libopencv"
2504 resample_filter_deps="avresample"
2505 scale_filter_deps="swscale"
2506 scale_qsv_filter_deps="libmfx"
2507 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2508
2509 # examples
2510 decode_audio_example_deps="avcodec avutil"
2511 decode_video_example_deps="avcodec avutil"
2512 encode_audio_example_deps="avcodec avutil"
2513 encode_video_example_deps="avcodec avutil"
2514 filter_audio_example_deps="avfilter avutil"
2515 metadata_example_deps="avformat avutil"
2516 output_example_deps="avcodec avformat avresample avutil swscale"
2517 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2518 transcode_aac_example_deps="avcodec avformat avresample"
2519
2520 # EXTRALIBS_LIST
2521 cpu_init_extralibs="pthreads_extralibs"
2522 cws2fws_extralibs="zlib_extralibs"
2523
2524 # libraries, in linking order
2525 avcodec_deps="avutil"
2526 avcodec_select="null_bsf"
2527 avdevice_deps="avformat avcodec avutil"
2528 avfilter_deps="avutil"
2529 avformat_deps="avcodec avutil"
2530 avformat_suggest="network"
2531 avresample_deps="avutil"
2532 swscale_deps="avutil"
2533
2534 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2535 avdevice_extralibs="libm_extralibs"
2536 avformat_extralibs="libm_extralibs"
2537 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2538 avresample_extralibs="libm_extralibs"
2539 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"
2540 swscale_extralibs="libm_extralibs"
2541
2542 # programs
2543 avconv_deps="avcodec avfilter avformat avresample swscale"
2544 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2545 fps_filter null_filter resample_filter scale_filter
2546 trim_filter"
2547 avconv_suggest="dxva2_lib ole32 psapi shell32"
2548 avplay_deps="avcodec avfilter avformat avresample sdl"
2549 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2550 avplay_suggest="shell32"
2551 avprobe_deps="avcodec avformat"
2552 avprobe_suggest="shell32"
2553
2554 # documentation
2555 pod2man_deps="doc"
2556 texi2html_deps="doc"
2557
2558 # default parameters
2559
2560 logfile="avbuild/config.log"
2561
2562 # installation paths
2563 prefix_default="/usr/local"
2564 bindir_default='${prefix}/bin'
2565 datadir_default='${prefix}/share/avconv'
2566 docdir_default='${prefix}/share/doc/libav'
2567 incdir_default='${prefix}/include'
2568 libdir_default='${prefix}/lib'
2569 mandir_default='${prefix}/share/man'
2570 shlibdir_default="$libdir_default"
2571
2572 # toolchain
2573 ar_default="ar"
2574 cc_default="gcc"
2575 host_cc_default="gcc"
2576 x86asmexe_default="nasm"
2577 ln_s="ln -s -f"
2578 nm_default="nm -g"
2579 pkg_config_default=pkg-config
2580 ranlib="ranlib"
2581 strip="strip"
2582 version_script='--version-script'
2583
2584 # machine
2585 arch_default=$(uname -m)
2586 cpu="generic"
2587 intrinsics="none"
2588
2589 # OS
2590 target_os_default=$(tolower $(uname -s))
2591 host_os=$target_os_default
2592
2593 # configurable options
2594 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2595
2596 enable asm
2597 enable debug
2598 enable doc
2599 enable faan faandct faanidct
2600 enable optimizations
2601 enable safe_bitstream_reader
2602 enable static
2603 enable swscale_alpha
2604 enable valgrind_backtrace
2605
2606 # By default, enable only those hwaccels that have no external dependencies.
2607 enable d3d11va dxva2 vda vdpau
2608
2609 # internal components are enabled by default
2610 enable $EXTRALIBS_LIST
2611
2612 # Avoid external, non-system, libraries getting enabled by dependency resolution
2613 disable $EXTERNAL_LIBRARY_LIST
2614
2615 # build settings
2616 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2617 LIBPREF="lib"
2618 LIBSUF=".a"
2619 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2620 SLIBPREF="lib"
2621 SLIBSUF=".so"
2622 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2623 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2624 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2625 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2626 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2627 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2628 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2629
2630 asflags_filter=echo
2631 cflags_filter=echo
2632 ldflags_filter=echo
2633
2634 AS_C='-c'
2635 AS_O='-o $@'
2636 CC_C='-c'
2637 CC_E='-E -o $@'
2638 CC_O='-o $@'
2639 OBJCC_C='-c'
2640 OBJCC_E='-E -o $@'
2641 OBJCC_O='-o $@'
2642 X86ASM_O='-o $@'
2643 LD_O='-o $@'
2644 LD_LIB='-l%'
2645 LD_PATH='-L'
2646 HOSTCC_C='-c'
2647 HOSTCC_E='-E -o $@'
2648 HOSTCC_O='-o $@'
2649 HOSTLD_O='-o $@'
2650
2651 host_extralibs='-lm'
2652 host_cflags_filter=echo
2653 host_ldflags_filter=echo
2654
2655 target_path='$(CURDIR)'
2656
2657 # since the object filename is not given with the -MM flag, the compiler
2658 # is only able to print the basename, and we must add the path ourselves
2659 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2660 DEPFLAGS='-MM'
2661
2662 mkdir -p avbuild
2663
2664 # find source path
2665 if test -f configure; then
2666 source_path=.
2667 else
2668 source_path=$(cd $(dirname "$0"); pwd)
2669 echo "$source_path" | grep -q '[[:blank:]]' &&
2670 die "Out of tree builds are impossible with whitespace in source path."
2671 test -e "$source_path/config.h" &&
2672 die "Out of tree builds are impossible with config.h in source dir."
2673 fi
2674
2675 for v in "$@"; do
2676 r=${v#*=}
2677 l=${v%"$r"}
2678 r=$(sh_quote "$r")
2679 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2680 done
2681
2682 find_things(){
2683 thing=$1
2684 pattern=$2
2685 file=$source_path/$3
2686 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2687 }
2688
2689 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2690 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2691 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2692 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2693 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2694 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2695 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2696 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2697 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2698
2699 find_things_extern(){
2700 thing=$1
2701 pattern=$2
2702 file=$source_path/$3
2703 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2704 }
2705
2706 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2707 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2708
2709 AVCODEC_COMPONENTS_LIST="
2710 $BSF_LIST
2711 $DECODER_LIST
2712 $ENCODER_LIST
2713 $HWACCEL_LIST
2714 $PARSER_LIST
2715 "
2716
2717 AVDEVICE_COMPONENTS_LIST="
2718 $INDEV_LIST
2719 $OUTDEV_LIST
2720 "
2721
2722 AVFILTER_COMPONENTS_LIST="
2723 $FILTER_LIST
2724 "
2725
2726 AVFORMAT_COMPONENTS_LIST="
2727 $DEMUXER_LIST
2728 $MUXER_LIST
2729 $PROTOCOL_LIST
2730 "
2731
2732 ALL_COMPONENTS="
2733 $AVCODEC_COMPONENTS_LIST
2734 $AVDEVICE_COMPONENTS_LIST
2735 $AVFILTER_COMPONENTS_LIST
2736 $AVFORMAT_COMPONENTS_LIST
2737 "
2738
2739 for n in $COMPONENT_LIST; do
2740 v=$(toupper ${n%s})_LIST
2741 eval enable \$$v
2742 eval ${n}_if_any="\$$v"
2743 done
2744
2745 enable $ARCH_EXT_LIST
2746
2747 die_unknown(){
2748 echo "Unknown option \"$1\"."
2749 echo "See $0 --help for available options."
2750 exit 1
2751 }
2752
2753 print_3_columns() {
2754 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2755 }
2756
2757 show_list() {
2758 suffix=_$1
2759 shift
2760 echo $* | sed s/$suffix//g | print_3_columns
2761 exit 0
2762 }
2763
2764 rand_list(){
2765 IFS=', '
2766 set -- $*
2767 unset IFS
2768 for thing; do
2769 comp=${thing%:*}
2770 prob=${thing#$comp}
2771 prob=${prob#:}
2772 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2773 echo "prob ${prob:-0.5}"
2774 printf '%s\n' $comp
2775 done
2776 }
2777
2778 do_random(){
2779 action=$1
2780 shift
2781 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2782 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2783 }
2784
2785 for opt do
2786 optval="${opt#*=}"
2787 case "$opt" in
2788 --extra-ldflags=*)
2789 add_ldflags $optval
2790 ;;
2791 --extra-ldexeflags=*)
2792 add_ldexeflags $optval
2793 ;;
2794 --extra-libs=*)
2795 add_extralibs $optval
2796 ;;
2797 --disable-devices)
2798 disable $INDEV_LIST $OUTDEV_LIST
2799 ;;
2800 --enable-debug=*)
2801 debuglevel="$optval"
2802 ;;
2803 --disable-programs)
2804 disable $PROGRAM_LIST
2805 ;;
2806 --disable-everything)
2807 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2808 ;;
2809 --disable-all)
2810 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2811 disable $LIBRARY_LIST $PROGRAM_LIST doc
2812 ;;
2813 --enable-random|--disable-random)
2814 action=${opt%%-random}
2815 do_random ${action#--} $COMPONENT_LIST
2816 ;;
2817 --enable-random=*|--disable-random=*)
2818 action=${opt%%-random=*}
2819 do_random ${action#--} $optval
2820 ;;
2821 --enable-*=*|--disable-*=*)
2822 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2823 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2824 eval list=\$$(toupper $thing)_LIST
2825 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2826 $action $(filter "$name" $list)
2827 ;;
2828 --enable-avserver|--disable-avserver*)
2829 warn "avserver has been removed, the ${opt} option is only"\
2830 "provided for compatibility and will be removed in the future"
2831 ;;
2832 --enable-yasm|--disable-yasm)
2833 warn "The ${opt} option is only provided for compatibility and will be\n"\
2834 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2835 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2836 ;;
2837 --enable-?*|--disable-?*)
2838 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2839 if is_in $option $COMPONENT_LIST; then
2840 test $action = disable && action=unset
2841 eval $action \$$(toupper ${option%s})_LIST
2842 elif is_in $option $CMDLINE_SELECT; then
2843 $action $option
2844 else
2845 die_unknown $opt
2846 fi
2847 ;;
2848 --list-*)
2849 NAME="${opt#--list-}"
2850 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2851 NAME=${NAME%s}
2852 eval show_list $NAME \$$(toupper $NAME)_LIST
2853 ;;
2854 --help|-h) show_help
2855 ;;
2856 --quiet|-q) quiet=yes
2857 ;;
2858 *)
2859 optname="${opt%%=*}"
2860 optname="${optname#--}"
2861 optname=$(echo "$optname" | sed 's/-/_/g')
2862 if is_in $optname $CMDLINE_SET; then
2863 eval $optname='$optval'
2864 elif is_in $optname $CMDLINE_APPEND; then
2865 append $optname "$optval"
2866 else
2867 die_unknown $opt
2868 fi
2869 ;;
2870 esac
2871 done
2872
2873 for e in $env; do
2874 eval "export $e"
2875 done
2876
2877 disabled logging && logfile=/dev/null
2878
2879 # Die early if licensing-related configure options are incompatible.
2880 die_license_disabled() {
2881 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2882 }
2883
2884 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2885 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2886 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2887
2888 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2889
2890 enabled_all gnutls openssl &&
2891 die "GnuTLS and OpenSSL must not be enabled at the same time."
2892
2893 # Disable all the library-specific components if the library itself
2894 # is disabled, see AVCODEC_LIST and following _LIST variables.
2895
2896 disable_components(){
2897 disabled ${1} && disable $(
2898 eval components="\$$(toupper ${1})_COMPONENTS"
2899 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2900 )
2901 }
2902
2903 map 'disable_components $v' $LIBRARY_LIST
2904
2905 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2906 set >> $logfile
2907
2908 case "$toolchain" in
2909 *-asan)
2910 cc_default="${toolchain%-asan}"
2911 add_cflags -fsanitize=address
2912 add_ldflags -fsanitize=address
2913 ;;
2914 *-msan)
2915 cc_default="${toolchain%-msan}"
2916 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2917 add_ldflags -fsanitize=memory
2918 ;;
2919 *-tsan)
2920 cc_default="${toolchain%-tsan}"
2921 add_cflags -fsanitize=thread -fPIE
2922 add_ldflags -fsanitize=thread -pie
2923 case "$toolchain" in
2924 gcc-tsan)
2925 add_cflags -fPIC
2926 add_ldflags -fPIC
2927 ;;
2928 esac
2929 ;;
2930 *-usan)
2931 cc_default="${toolchain%-usan}"
2932 add_cflags -fsanitize=undefined
2933 add_ldflags -fsanitize=undefined
2934 case "$toolchain" in
2935 clang-usan)
2936 add_cflags -O1
2937 ;;
2938 esac
2939 ;;
2940 valgrind-*)
2941 target_exec_default="valgrind"
2942 case "$toolchain" in
2943 valgrind-massif)
2944 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2945 ;;
2946 valgrind-memcheck)
2947 target_exec_args="--track-origins=yes --leak-check=full"
2948 ;;
2949 esac
2950 ;;
2951 msvc)
2952 # Check whether the current MSVC version needs the C99 converter.
2953 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2954 # support enough of C99 to build libav. Default to the new
2955 # behaviour if the regexp was unable to match anything, since this
2956 # successfully parses the version number of existing supported
2957 # versions that require the converter (MSVC 2010 and 2012).
2958 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2959 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2960 cc_default="cl"
2961 else
2962 cc_default="c99wrap cl"
2963 fi
2964 ld_default="$source_path/compat/windows/mslink"
2965 nm_default="dumpbin -symbols"
2966 ar_default="lib"
2967 case "$arch" in
2968 arm*)
2969 as_default="armasm"
2970 ;;
2971 esac
2972 target_os_default="win32"
2973 # Use a relative path for TMPDIR. This makes sure all the
2974 # ffconf temp files are written with a relative path, avoiding
2975 # issues with msys/win32 path conversion for MSVC parameters
2976 # such as -Fo<file> or -out:<file>.
2977 TMPDIR=.
2978 ;;
2979 icl)
2980 cc_default="icl"
2981 ld_default="xilink"
2982 nm_default="dumpbin -symbols"
2983 ar_default="xilib"
2984 target_os_default="win32"
2985 TMPDIR=.
2986 ;;
2987 gcov)
2988 add_cflags -fprofile-arcs -ftest-coverage
2989 add_ldflags -fprofile-arcs -ftest-coverage
2990 ;;
2991 llvm-cov)
2992 add_cflags -fprofile-arcs -ftest-coverage
2993 add_ldflags --coverage
2994 ;;
2995 hardened)
2996 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2997 add_cflags -fno-strict-overflow -fstack-protector-all
2998 add_ldflags -Wl,-z,relro -Wl,-z,now
2999 ;;
3000 ?*)
3001 die "Unknown toolchain $toolchain"
3002 ;;
3003 esac
3004
3005 test -n "$cross_prefix" && enable cross_compile
3006
3007 if enabled cross_compile; then
3008 test -n "$arch" && test -n "$target_os" ||
3009 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3010 fi
3011
3012 ar_default="${cross_prefix}${ar_default}"
3013 cc_default="${cross_prefix}${cc_default}"
3014 objcc_default="${cross_prefix}${objcc_default}"
3015 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3016 nm_default="${cross_prefix}${nm_default}"
3017 pkg_config_default="${cross_prefix}${pkg_config_default}"
3018 ranlib="${cross_prefix}${ranlib}"
3019 strip="${cross_prefix}${strip}"
3020
3021 sysinclude_default="${sysroot}/usr/include"
3022
3023 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3024 enabled cross_compile || host_cc_default=$cc
3025 set_default host_cc
3026
3027 if ! $pkg_config --version >/dev/null 2>&1; then
3028 warn "$pkg_config not found, library detection may fail."
3029 pkg_config=false
3030 fi
3031
3032 exesuf() {
3033 case $1 in
3034 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3035 esac
3036 }
3037
3038 EXESUF=$(exesuf $target_os)
3039 HOSTEXESUF=$(exesuf $host_os)
3040
3041 # set temporary file name
3042 : ${TMPDIR:=$TEMPDIR}
3043 : ${TMPDIR:=$TMP}
3044 : ${TMPDIR:=/tmp}
3045
3046 if ! check_cmd mktemp -u XXXXXX; then
3047 # simple replacement for missing mktemp
3048 # NOT SAFE FOR GENERAL USE
3049 mktemp(){
3050 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3051 echo "$tmpname"
3052 mkdir "$tmpname"
3053 }
3054 fi
3055
3056 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3057 die "Unable to create temporary directory in $TMPDIR."
3058
3059 tmpfile(){
3060 tmp="${AVTMPDIR}/test"$2
3061 (set -C; exec > $tmp) 2> /dev/null ||
3062 die "Unable to create temporary file in $AVTMPDIR."
3063 eval $1=$tmp
3064 }
3065
3066 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3067 trap 'exit 2' INT
3068
3069 tmpfile TMPASM .asm
3070 tmpfile TMPC .c
3071 tmpfile TMPE $EXESUF
3072 tmpfile TMPH .h
3073 tmpfile TMPO .o
3074 tmpfile TMPS .S
3075 tmpfile TMPSH .sh
3076 tmpfile TMPV .ver
3077
3078 unset -f mktemp
3079
3080 chmod +x $TMPE
3081
3082 # make sure we can execute files in $TMPDIR
3083 cat > $TMPSH 2>> $logfile <<EOF
3084 #! /bin/sh
3085 EOF
3086 chmod +x $TMPSH >> $logfile 2>&1
3087 if ! $TMPSH >> $logfile 2>&1; then
3088 cat <<EOF
3089 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3090 variable to another directory and make sure that it is not mounted noexec.
3091 EOF
3092 die "Sanity test failed."
3093 fi
3094
3095 armasm_flags(){
3096 for flag; do
3097 case $flag in
3098 # Filter out MSVC cl.exe options from cflags that shouldn't
3099 # be passed to gas-preprocessor
3100 -M[TD]*) ;;
3101 *) echo $flag ;;
3102 esac
3103 done
3104 }
3105
3106 ccc_flags(){
3107 for flag; do
3108 case $flag in
3109 -std=c99) echo -c99 ;;
3110 -mcpu=*) echo -arch ${flag#*=} ;;
3111 -mieee) echo -ieee ;;
3112 -O*|-fast) echo $flag ;;
3113 -fno-math-errno) echo -assume nomath_errno ;;
3114 -g) echo -g3 ;;
3115 -Wall) echo -msg_enable level2 ;;
3116 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3117 -Wl,*) echo $flag ;;
3118 -f*|-W*) ;;
3119 *) echo $flag ;;
3120 esac
3121 done
3122 }
3123
3124 cparser_flags(){
3125 for flag; do
3126 case $flag in
3127 -Wno-switch) echo -Wno-switch-enum ;;
3128 -Wno-format-zero-length) ;;
3129 -Wdisabled-optimization) ;;
3130 -Wno-pointer-sign) echo -Wno-other ;;
3131 *) echo $flag ;;
3132 esac
3133 done
3134 }
3135
3136 msvc_common_flags(){
3137 for flag; do
3138 case $flag in
3139 # In addition to specifying certain flags under the compiler
3140 # specific filters, they must be specified here as well or else the
3141 # generic catch all at the bottom will print the original flag.
3142 -Wall) ;;
3143 -Wextra) ;;
3144 -std=c99) ;;
3145 # Common flags
3146 -fomit-frame-pointer) ;;
3147 -g) echo -Z7 ;;
3148 -fno-math-errno) ;;
3149 -fno-common) ;;
3150 -fno-signed-zeros) ;;
3151 -fPIC) ;;
3152 -mthumb) ;;
3153 -march=*) ;;
3154 -lz) echo zlib.lib ;;
3155 -lx264) echo libx264.lib ;;
3156 -l*) echo ${flag#-l}.lib ;;
3157 -L*) echo -libpath:${flag#-L} ;;
3158 *) echo $flag ;;
3159 esac
3160 done
3161 }
3162
3163 msvc_flags(){
3164 msvc_common_flags "$@"
3165 for flag; do
3166 case $flag in
3167 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3168 -wd4554 ;;
3169 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3170 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3171 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3172 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3173 esac
3174 done
3175 }
3176
3177 icl_flags(){
3178 msvc_common_flags "$@"
3179 for flag; do
3180 case $flag in
3181 # Despite what Intel's documentation says -Wall, which is supported
3182 # on Windows, does enable remarks so disable them here.
3183 -Wall) echo $flag -Qdiag-disable:remark ;;
3184 -std=c99) echo -Qstd=c99 ;;
3185 esac
3186 done
3187 }
3188
3189 pgi_flags(){
3190 for flag; do
3191 case $flag in
3192 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3193 -fomit-frame-pointer) echo -Mnoframe ;;
3194 -g) echo -gopt ;;
3195 *) echo $flag ;;
3196 esac
3197 done
3198 }
3199
3200 suncc_flags(){
3201 for flag; do
3202 case $flag in
3203 -march=*|-mcpu=*)
3204 case "${flag#*=}" in
3205 native) echo -xtarget=native ;;
3206 v9|niagara) echo -xarch=sparc ;;
3207 ultrasparc) echo -xarch=sparcvis ;;
3208 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3209 i586|pentium) echo -xchip=pentium ;;
3210 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3211 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3212 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3213 pentium4*) echo -xtarget=pentium4 ;;
3214 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3215 *-sse3) echo -xarch=sse3 ;;
3216 core2) echo -xarch=ssse3 -xchip=core2 ;;
3217 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3218 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3219 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3220 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3221 k8|opteron|athlon64|athlon-fx)
3222 echo -xarch=sse2a ;;
3223 athlon*) echo -xarch=pentium_proa ;;
3224 esac
3225 ;;
3226 -std=c99) echo -xc99 ;;
3227 -fomit-frame-pointer) echo -xregs=frameptr ;;
3228 -fPIC) echo -KPIC -xcode=pic32 ;;
3229 -W*,*) echo $flag ;;
3230 -f*-*|-W*|-mimpure-text) ;;
3231 -shared) echo -G ;;
3232 *) echo $flag ;;
3233 esac
3234 done
3235 }
3236
3237 tms470_flags(){
3238 for flag; do
3239 case $flag in
3240 -march=*|-mcpu=*)
3241 case "${flag#*=}" in
3242 armv7-a|cortex-a*) echo -mv=7a8 ;;
3243 armv7-r|cortex-r*) echo -mv=7r4 ;;
3244 armv7-m|cortex-m*) echo -mv=7m3 ;;
3245 armv6*|arm11*) echo -mv=6 ;;
3246 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3247 echo -mv=5e ;;
3248 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3249 esac
3250 ;;
3251 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3252 -mfpu=vfp) echo --float_support=vfpv2 ;;
3253 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3254 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3255 -msoft-float) echo --float_support=vfplib ;;
3256 -O[0-3]|-mf=*) echo $flag ;;
3257 -g) echo -g -mn ;;
3258 -pds=*) echo $flag ;;
3259 -D*|-I*) echo $flag ;;
3260 --gcc|--abi=*) echo $flag ;;
3261 -me) echo $flag ;;
3262 esac
3263 done
3264 }
3265
3266 probe_cc(){
3267 pfx=$1
3268 _cc=$2
3269
3270 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3271 unset _ld_o _ldflags _ld_lib _ld_path
3272 unset _depflags _DEPCMD _DEPFLAGS
3273 _flags_filter=echo
3274
3275 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3276 _type=llvm_gcc
3277 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3278 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3279 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3280 _cflags_speed='-O3'
3281 _cflags_size='-Os'
3282 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3283 _type=gcc
3284 gcc_version=$($_cc --version | head -n1)
3285 gcc_basever=$($_cc -dumpversion)
3286 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3287 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3288 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3289 if ! $_cc -dumpversion | grep -q '^2\.'; then
3290 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3291 fi
3292 _cflags_speed='-O3'
3293 _cflags_size='-Os'
3294 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3295 _type=icc
3296 _ident=$($_cc --version | head -n1)
3297 _depflags='-MMD'
3298 _cflags_speed='-O3'
3299 _cflags_size='-Os'
3300 _cflags_noopt='-O1'
3301 elif $_cc -v 2>&1 | grep -q xlc; then
3302 _type=xlc
3303 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3304 _cflags_speed='-O5'
3305 _cflags_size='-O5 -qcompact'
3306 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3307 _type=ccc
3308 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3309 _DEPFLAGS='-M'
3310 _cflags_speed='-fast'
3311 _cflags_size='-O1'
3312 _flags_filter=ccc_flags
3313 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3314 test -d "$sysroot" || die "No valid sysroot specified."
3315 _type=armcc
3316 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3317 armcc_conf="$PWD/armcc.conf"
3318 $_cc --arm_linux_configure \
3319 --arm_linux_config_file="$armcc_conf" \
3320 --configure_sysroot="$sysroot" \
3321 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3322 die "Error creating armcc configuration file."
3323 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3324 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3325 as_default="${cross_prefix}gcc"
3326 _depflags='-MMD'
3327 _cflags_speed='-O3'
3328 _cflags_size='-Os'
3329 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3330 _type=tms470
3331 _ident=$($_cc -version | head -n1 | tr -s ' ')
3332 _flags='--gcc --abi=eabi -me'
3333 _cc_e='-ppl -fe=$@'
3334 _cc_o='-fe=$@'
3335 _depflags='-ppa -ppd=$(@:.o=.d)'
3336 _cflags_speed='-O3 -mf=5'
3337 _cflags_size='-O3 -mf=2'
3338 _flags_filter=tms470_flags
3339 elif $_cc -v 2>&1 | grep -q clang; then
3340 _type=clang
3341 _ident=$($_cc --version 2>/dev/null | head -n1)
3342 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3343 _cflags_speed='-O3'
3344 _cflags_size='-Os'
3345 elif $_cc -V 2>&1 | grep -q Sun; then
3346 _type=suncc
3347 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3348 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3349 _DEPFLAGS='-xM1 -xc99'
3350 _ldflags='-std=c99'
3351 _cflags_speed='-O5'
3352 _cflags_size='-O5 -xspace'
3353 _flags_filter=suncc_flags
3354 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3355 _type=pathscale
3356 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3357 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3358 _cflags_speed='-O2'
3359 _cflags_size='-Os'
3360 _flags_filter='filter_out -Wdisabled-optimization'
3361 elif $_cc -v 2>&1 | grep -q Open64; then
3362 _type=open64
3363 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3364 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3365 _cflags_speed='-O2'
3366 _cflags_size='-Os'
3367 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3368 elif $_cc -V 2>&1 | grep -q Portland; then
3369 _type=pgi
3370 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3371 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3372 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3373 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3374 _cflags_noopt="-O1"
3375 _flags_filter=pgi_flags
3376 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3377 _type=armasm
3378 _ident=$($_cc | head -n1)
3379 # 4509: "This form of conditional instruction is deprecated"
3380 _flags="-nologo -ignore 4509"
3381 _flags_filter=armasm_flags
3382 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3383 _type=msvc
3384 _ident=$($_cc 2>&1 | head -n1)
3385 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3386 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3387 _cflags_speed="-O2"
3388 _cflags_size="-O1"
3389 _cflags_noopt="-O1"
3390 if $_cc -nologo- 2>&1 | grep -q Linker; then
3391 _ld_o='-out:$@'
3392 else
3393 _ld_o='-Fe$@'
3394 fi
3395 _cc_o='-Fo$@'
3396 _cc_e='-P -Fi$@'
3397 _flags_filter=msvc_flags
3398 _ld_lib='lib%.a'
3399 _ld_path='-libpath:'
3400 _flags='-nologo'
3401 elif $_cc 2>&1 | grep -q Intel; then
3402 _type=icl
3403 _ident=$($_cc 2>&1 | head -n1)
3404 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3405 # Not only is O3 broken on 13.x+ but it is slower on all previous
3406 # versions (tested) as well.
3407 _cflags_speed="-O2"
3408 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3409 if $_cc 2>&1 | grep -q Linker; then
3410 _ld_o='-out:$@'
3411 else
3412 _ld_o='-Fe$@'
3413 fi
3414 _cc_o='-Fo$@'
3415 _cc_e='-P'
3416 _flags_filter=icl_flags
3417 _ld_lib='lib%.a'
3418 _ld_path='-libpath:'
3419 # -Qdiag-error to make icl error when seeing certain unknown arguments
3420 _flags='-nologo -Qdiag-error:4044,10157'
3421 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3422 # with MSVC which enables it by default.
3423 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3424 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3425 # lld can emulate multiple different linkers; in ms link.exe mode,
3426 # the -? parameter gives the help output which contains an identifyable
3427 # string, while it gives an error in other modes.
3428 _type=lld-link
3429 # The link.exe mode doesn't have a switch for getting the version,
3430 # but we can force it back to gnu mode and get the version from there.
3431 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3432 _ld_o='-out:$@'
3433 _flags_filter=msvc_flags
3434 _ld_lib='lib%.a'
3435 _ld_path='-libpath:'
3436 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3437 _type=cparser
3438 _ident=$($_cc --version | head -n1)
3439 _depflags='-MMD'
3440 _cflags_speed='-O4'
3441 _cflags_size='-O2'
3442 _flags_filter=cparser_flags
3443 fi
3444
3445 eval ${pfx}_type=\$_type
3446 eval ${pfx}_ident=\$_ident
3447 }
3448
3449 set_ccvars(){
3450 eval ${1}_C=\${_cc_c-\${${1}_C}}
3451 eval ${1}_E=\${_cc_e-\${${1}_E}}
3452 eval ${1}_O=\${_cc_o-\${${1}_O}}
3453
3454 if [ -n "$_depflags" ]; then
3455 eval ${1}_DEPFLAGS=\$_depflags
3456 else
3457 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3458 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3459 eval DEP${1}FLAGS=\$_flags
3460 fi
3461 }
3462
3463 probe_cc cc "$cc"
3464 cflags_filter=$_flags_filter
3465 cflags_speed=$_cflags_speed
3466 cflags_size=$_cflags_size
3467 cflags_noopt=$_cflags_noopt
3468 add_cflags $_flags $_cflags
3469 cc_ldflags=$_ldflags
3470 set_ccvars CC
3471
3472 probe_cc hostcc "$host_cc"
3473 host_cflags_filter=$_flags_filter
3474 host_cflags_speed=$_cflags_speed
3475 add_host_cflags $_flags $_cflags
3476 set_ccvars HOSTCC
3477
3478 test -n "$cc_type" && enable $cc_type ||
3479 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3480
3481 : ${as_default:=$cc}
3482 : ${objcc_default:=$cc}
3483 : ${dep_cc_default:=$cc}
3484 : ${ld_default:=$cc}
3485 : ${host_ld_default:=$host_cc}
3486 set_default ar as objcc dep_cc ld host_ld
3487
3488 probe_cc as "$as"
3489 asflags_filter=$_flags_filter
3490 add_asflags $_flags $_cflags
3491 set_ccvars AS
3492
3493 probe_cc objcc "$objcc"
3494 objcflags_filter=$_flags_filter
3495 add_objcflags $_flags $_cflags
3496 set_ccvars OBJC
3497
3498 probe_cc ld "$ld"
3499 ldflags_filter=$_flags_filter
3500 add_ldflags $_flags $_ldflags
3501 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3502 LD_O=${_ld_o-$LD_O}
3503 LD_LIB=${_ld_lib-$LD_LIB}
3504 LD_PATH=${_ld_path-$LD_PATH}
3505
3506 probe_cc hostld "$host_ld"
3507 host_ldflags_filter=$_flags_filter
3508 add_host_ldflags $_flags $_ldflags
3509 HOSTLD_O=${_ld_o-$HOSTLD_O}
3510
3511 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3512 probe_cc depcc "$dep_cc"
3513 CCDEP=${_DEPCMD:-$DEPCMD}
3514 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3515 DEPCCFLAGS=$_flags
3516 fi
3517
3518 if $ar 2>&1 | grep -q Microsoft; then
3519 arflags="-nologo"
3520 ar_o='-out:$@'
3521 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3522 arflags="rq"
3523 ar_o='$@'
3524 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3525 arflags='-Xany -r -c'
3526 ar_o='$@'
3527 else
3528 arflags="rc"
3529 ar_o='$@'
3530 fi
3531
3532 add_cflags $extra_cflags
3533 add_objcflags $extra_objcflags
3534 add_asflags $extra_cflags
3535
3536 if test -n "$sysroot"; then
3537 case "$cc_type" in
3538 gcc|llvm_gcc|clang)
3539 add_cppflags --sysroot="$sysroot"
3540 add_ldflags --sysroot="$sysroot"
3541 ;;
3542 tms470)
3543 add_cppflags -I"$sysinclude"
3544 add_ldflags --sysroot="$sysroot"
3545 ;;
3546 esac
3547 fi
3548
3549 if test "$cpu" = host; then
3550 enabled cross_compile &&
3551 die "--cpu=host makes no sense when cross-compiling."
3552
3553 case "$cc_type" in
3554 gcc|llvm_gcc)
3555 check_native(){
3556 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3557 sed -n "/cc1.*$1=/{
3558 s/.*$1=\\([^ ]*\\).*/\\1/
3559 p
3560 q
3561 }" $TMPE
3562 }
3563 cpu=$(check_native -march || check_native -mcpu)
3564 ;;
3565 esac
3566
3567 test "${cpu:-host}" = host &&
3568 die "--cpu=host not supported with compiler $cc"
3569 fi
3570
3571 # Deal with common $arch aliases
3572 case "$arch" in
3573 aarch64|arm64)
3574 arch="aarch64"
3575 ;;
3576 arm*)
3577 arch="arm"
3578 ;;
3579 mips*|IP*)
3580 case "$arch" in
3581 *el)
3582 add_cppflags -EL
3583 add_ldflags -EL
3584 ;;
3585 *eb)
3586 add_cppflags -EB
3587 add_ldflags -EB
3588 ;;
3589 esac
3590 arch="mips"
3591 ;;
3592 parisc*|hppa*)
3593 arch="parisc"
3594 ;;
3595 "Power Macintosh"|ppc*|powerpc*)
3596 arch="ppc"
3597 ;;
3598 s390|s390x)
3599 arch="s390"
3600 ;;
3601 sh4|sh)
3602 arch="sh4"
3603 ;;
3604 sun4u|sparc*)
3605 arch="sparc"
3606 ;;
3607 tilegx|tile-gx)
3608 arch="tilegx"
3609 ;;
3610 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3611 arch="x86"
3612 ;;
3613 esac
3614
3615 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3616 enable $arch
3617
3618 # Add processor-specific flags
3619 if enabled aarch64; then
3620
3621 case $cpu in
3622 armv*)
3623 cpuflags="-march=$cpu"
3624 ;;
3625 *)
3626 cpuflags="-mcpu=$cpu"
3627 ;;
3628 esac
3629
3630 elif enabled alpha; then
3631
3632 cpuflags="-mcpu=$cpu"
3633
3634 elif enabled arm; then
3635
3636 check_arm_arch() {
3637 check_cpp_condition stddef.h \
3638 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3639 $cpuflags
3640 }
3641
3642 probe_arm_arch() {
3643 if check_arm_arch 4; then echo armv4
3644 elif check_arm_arch 4T; then echo armv4t
3645 elif check_arm_arch 5; then echo armv5
3646 elif check_arm_arch 5E; then echo armv5e
3647 elif check_arm_arch 5T; then echo armv5t
3648 elif check_arm_arch 5TE; then echo armv5te
3649 elif check_arm_arch 5TEJ; then echo armv5te
3650 elif check_arm_arch 6; then echo armv6
3651 elif check_arm_arch 6J; then echo armv6j
3652 elif check_arm_arch 6K; then echo armv6k
3653 elif check_arm_arch 6Z; then echo armv6z
3654 elif check_arm_arch 6ZK; then echo armv6zk
3655 elif check_arm_arch 6T2; then echo armv6t2
3656 elif check_arm_arch 7; then echo armv7
3657 elif check_arm_arch 7A 7_A; then echo armv7-a
3658 elif check_arm_arch 7S; then echo armv7-a
3659 elif check_arm_arch 7R 7_R; then echo armv7-r
3660 elif check_arm_arch 7M 7_M; then echo armv7-m
3661 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3662 elif check_arm_arch 8A 8_A; then echo armv8-a
3663 fi
3664 }
3665
3666 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3667
3668 case $cpu in
3669 armv*)
3670 cpuflags="-march=$cpu"
3671 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3672 ;;
3673 *)
3674 cpuflags="-mcpu=$cpu"
3675 case $cpu in
3676 cortex-a*) subarch=armv7a ;;
3677 cortex-r*) subarch=armv7r ;;
3678 cortex-m*) enable thumb; subarch=armv7m ;;
3679 arm11*) subarch=armv6 ;;
3680 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3681 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3682 *) subarch=$(probe_arm_arch) ;;
3683 esac
3684 ;;
3685 esac
3686
3687 case "$subarch" in
3688 armv5t*) enable fast_clz ;;
3689 armv[6-8]*) enable fast_clz fast_unaligned ;;
3690 esac
3691
3692 elif enabled avr32; then
3693
3694 case $cpu in
3695 ap7[02]0[0-2])
3696 subarch="avr32_ap"
3697 cpuflags="-mpart=$cpu"
3698 ;;
3699 ap)
3700 subarch="avr32_ap"
3701 cpuflags="-march=$cpu"
3702 ;;
3703 uc3[ab]*)
3704 subarch="avr32_uc"
3705 cpuflags="-mcpu=$cpu"
3706 ;;
3707 uc)
3708 subarch="avr32_uc"
3709 cpuflags="-march=$cpu"
3710 ;;
3711 esac
3712
3713 elif enabled bfin; then
3714
3715 cpuflags="-mcpu=$cpu"
3716
3717 elif enabled mips; then
3718
3719 cpuflags="-march=$cpu"
3720
3721 elif enabled ppc; then
3722
3723 disable ldbrx
3724
3725 case $(tolower $cpu) in
3726 601|ppc601|powerpc601)
3727 cpuflags="-mcpu=601"
3728 disable altivec
3729 ;;
3730 603*|ppc603*|powerpc603*)
3731 cpuflags="-mcpu=603"
3732 disable altivec
3733 ;;
3734 604*|ppc604*|powerpc604*)
3735 cpuflags="-mcpu=604"
3736 disable altivec
3737 ;;
3738 g3|75*|ppc75*|powerpc75*)
3739 cpuflags="-mcpu=750"
3740 disable altivec
3741 ;;
3742 g4|745*|ppc745*|powerpc745*)
3743 cpuflags="-mcpu=7450"
3744 disable vsx
3745 ;;
3746 74*|ppc74*|powerpc74*)
3747 cpuflags="-mcpu=7400"
3748 disable vsx
3749 ;;
3750 g5|970|ppc970|powerpc970)
3751 cpuflags="-mcpu=970"
3752 disable vsx
3753 ;;
3754 power[3-6]*)
3755 cpuflags="-mcpu=$cpu"
3756 disable vsx
3757 ;;
3758 power[7-8]*)
3759 cpuflags="-mcpu=$cpu"
3760 enable ldbrx
3761 ;;
3762 cell)
3763 cpuflags="-mcpu=cell"
3764 enable ldbrx
3765 disable vsx
3766 ;;
3767 e500mc)
3768 cpuflags="-mcpu=e500mc"
3769 disable altivec
3770 ;;
3771 e500v2)
3772 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3773 disable altivec
3774 disable dcbzl
3775 ;;
3776 e500)
3777 cpuflags="-mcpu=8540 -mhard-float"
3778 disable altivec
3779 disable dcbzl
3780 ;;
3781 esac
3782
3783 elif enabled sparc; then
3784
3785 case $cpu in
3786 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3787 cpuflags="-mcpu=$cpu"
3788 ;;
3789 ultrasparc*|niagara[234])
3790 cpuflags="-mcpu=$cpu"
3791 ;;
3792 esac
3793
3794 elif enabled x86; then
3795
3796 case $cpu in
3797 i[345]86|pentium)
3798 cpuflags="-march=$cpu"
3799 disable i686
3800 disable mmx
3801 ;;
3802 # targets that do NOT support nopl and conditional mov (cmov)
3803 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3804 cpuflags="-march=$cpu"
3805 disable i686
3806 ;;
3807 # targets that do support nopl and conditional mov (cmov)
3808 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3809 cpuflags="-march=$cpu"
3810 enable i686
3811 enable fast_cmov
3812 ;;
3813 # targets that do support conditional mov but on which it's slow
3814 pentium4|pentium4m|prescott|nocona)
3815 cpuflags="-march=$cpu"
3816 enable i686
3817 disable fast_cmov
3818 ;;
3819 esac
3820
3821 fi
3822
3823 if [ "$cpu" != generic ]; then
3824 add_cflags $cpuflags
3825 add_asflags $cpuflags
3826 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3827 fi
3828
3829 # compiler sanity check
3830 check_exec <<EOF
3831 int main(void){ return 0; }
3832 EOF
3833 if test "$?" != 0; then
3834 echo "$cc is unable to create an executable file."
3835 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3836 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3837 echo "Only do this if you know what cross compiling means."
3838 fi
3839 die "C compiler test failed."
3840 fi
3841
3842 add_cppflags -D_ISOC99_SOURCE
3843
3844 # some compilers silently accept -std=c11, so we also need to check that the
3845 # version macro is defined properly
3846 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3847 add_cflags -std=c11 ||
3848 check_cflags -std=c99
3849
3850 check_cppflags -D_FILE_OFFSET_BITS=64
3851 check_cppflags -D_LARGEFILE_SOURCE
3852
3853 add_host_cppflags -D_ISOC99_SOURCE
3854 check_host_cflags -std=c99
3855 check_host_cflags -Wall
3856 check_host_cflags $host_cflags_speed
3857
3858 check_64bit(){
3859 arch32=$1
3860 arch64=$2
3861 expr=$3
3862 check_code cc "" "int test[2*($expr) - 1]" &&
3863 subarch=$arch64 || subarch=$arch32
3864 }
3865
3866 case "$arch" in
3867 aarch64|alpha|ia64)
3868 spic=$shared
3869 ;;
3870 mips)
3871 check_64bit mips mips64 '_MIPS_SIM > 1'
3872 spic=$shared
3873 ;;
3874 parisc)
3875 check_64bit parisc parisc64 'sizeof(void *) > 4'
3876 spic=$shared
3877 ;;
3878 ppc)
3879 check_64bit ppc ppc64 'sizeof(void *) > 4'
3880 spic=$shared
3881 ;;
3882 s390)
3883 check_64bit s390 s390x 'sizeof(void *) > 4'
3884 spic=$shared
3885 ;;
3886 sparc)
3887 check_64bit sparc sparc64 'sizeof(void *) > 4'
3888 spic=$shared
3889 ;;
3890 x86)
3891 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3892 if test "$subarch" = "x86_64"; then
3893 spic=$shared
3894 fi
3895 ;;
3896 esac
3897
3898 enable $subarch
3899 enabled spic && enable_weak pic
3900
3901 enabled x86_64 && objformat=elf64 || objformat="elf32"
3902
3903 # OS specific
3904 case $target_os in
3905 aix)
3906 SHFLAGS=-shared
3907 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3908 enabled shared && add_ldflags -Wl,-brtl
3909 ;;
3910 android)
3911 disable symver
3912 enable section_data_rel_ro
3913 SLIB_INSTALL_NAME='$(SLIBNAME)'
3914 SLIB_INSTALL_LINKS=
3915 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3916 ;;
3917 haiku)
3918 prefix_default="/boot/common"
3919 network_extralibs="-lnetwork"
3920 host_extralibs=
3921 ;;
3922 sunos)
3923 SHFLAGS='-shared -Wl,-h,$$(@F)'
3924 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3925 network_extralibs="-lsocket -lnsl"
3926 # When using suncc to build, the Solaris linker will mark
3927 # an executable with each instruction set encountered by
3928 # the Solaris assembler. As our libraries contain their own
3929 # guards for processor-specific code, instead suppress
3930 # generation of the HWCAPS ELF section on Solaris x86 only.
3931 enabled_all suncc x86 &&
3932 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3933 add_ldflags -Wl,-M,mapfile
3934 nm_default='nm -P -g'
3935 version_script='-M'
3936 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3937 ;;
3938 netbsd)
3939 disable symver
3940 oss_indev_extralibs="-lossaudio"
3941 oss_outdev_extralibs="-lossaudio"
3942 ;;
3943 openbsd|bitrig)
3944 disable symver
3945 SHFLAGS='-shared'
3946 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3947 SLIB_INSTALL_LINKS=
3948 oss_indev_extralibs="-lossaudio"
3949 oss_outdev_extralibs="-lossaudio"
3950 ;;
3951 dragonfly)
3952 disable symver
3953 ;;
3954 freebsd)
3955 ;;
3956 bsd/os)
3957 add_extralibs -lpoll -lgnugetopt
3958 ;;
3959 darwin)
3960 enabled ppc && add_asflags -force_cpusubtype_ALL
3961 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3962 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3963 add_ldflags -Wl,-dynamic,-search_paths_first
3964 check_cflags -Werror=partial-availability
3965 SLIBSUF=".dylib"
3966 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3967 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3968 enabled x86_64 && objformat="macho64" || objformat="macho32"
3969 enabled_any pic shared ||
3970 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3971 check_header dispatch/dispatch.h &&
3972 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3973 ;;
3974 msys*)
3975 die "Native MSYS builds are discouraged, please use the MINGW environment."
3976 ;;
3977 mingw32*|mingw64*)
3978 if test $target_os = "mingw32ce"; then
3979 disable network
3980 else
3981 target_os=mingw32
3982 fi
3983 LIBTARGET=i386
3984 if enabled x86_64; then
3985 LIBTARGET="i386:x86-64"
3986 elif enabled arm; then
3987 LIBTARGET=arm-wince
3988 fi
3989 check_ldflags -Wl,--nxcompat
3990 check_ldflags -Wl,--dynamicbase
3991 shlibdir_default="$bindir_default"
3992 SLIBPREF=""
3993 SLIBSUF=".dll"
3994 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3995 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3996 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3997 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3998 SLIB_INSTALL_LINKS=
3999 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4000 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4001 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4002 enabled x86_64 && objformat="win64" || objformat="win32"
4003 dlltool="${cross_prefix}dlltool"
4004 ranlib=:
4005 enable dos_paths
4006 ;;
4007 win32|win64)
4008 disable symver
4009 if enabled shared; then
4010 # Link to the import library instead of the normal static library
4011 # for shared libs.
4012 LD_LIB='%.lib'
4013 # Cannot build both shared and static libs with MSVC or icl.
4014 disable static
4015 fi
4016 shlibdir_default="$bindir_default"
4017 SLIBPREF=""
4018 SLIBSUF=".dll"
4019 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4020 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4021 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4022 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4023 SLIB_INSTALL_LINKS=
4024 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4025 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4026 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4027 enabled x86_64 && objformat="win64" || objformat="win32"
4028 ranlib=:
4029 enable dos_paths
4030 ;;
4031 cygwin*)
4032 target_os=cygwin
4033 shlibdir_default="$bindir_default"
4034 SLIBPREF="cyg"
4035 SLIBSUF=".dll"
4036 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4037 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4038 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4039 SLIB_INSTALL_LINKS=
4040 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4041 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4042 enabled x86_64 && objformat="win64" || objformat="win32"
4043 enable dos_paths
4044 ;;
4045 *-dos|freedos|opendos)
4046 network_extralibs="-lsocket"
4047 objformat="coff"
4048 enable dos_paths
4049 add_cppflags -U__STRICT_ANSI__
4050 ;;
4051 linux)
4052 enable dv1394
4053 enable section_data_rel_ro
4054 ;;
4055 irix*)
4056 target_os=irix
4057 ranlib="echo ignoring ranlib"
4058 ;;
4059 os/2*)
4060 ln_s="cp -f"
4061 objformat="aout"
4062 add_cppflags -D_GNU_SOURCE
4063 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4064 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4065 LIBSUF="_s.a"
4066 SLIBPREF=""
4067 SLIBSUF=".dll"
4068 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4069 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4070 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4071 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4072 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4073 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4074 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4075 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4076 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4077 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4078 enable dos_paths
4079 ;;
4080 gnu/kfreebsd)
4081 add_cppflags -D_BSD_SOURCE
4082 ;;
4083 gnu)
4084 ;;
4085 qnx)
4086 add_cppflags -D_QNX_SOURCE
4087 network_extralibs="-lsocket"
4088 ;;
4089 symbian)
4090 SLIBSUF=".dll"
4091 enable dos_paths
4092 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4093 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4094 add_ldflags -Wl,--target1-abs,--no-undefined \
4095 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4096 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4097 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4098 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4099 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4100 ;;
4101 osf1)
4102 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4103 ;;
4104 minix)
4105 ;;
4106 none)
4107 ;;
4108 *)
4109 die "Unknown OS '$target_os'."
4110 ;;
4111 esac
4112
4113 # determine libc flavour
4114
4115 probe_libc(){
4116 pfx=$1
4117 pfx_no_=${pfx%_}
4118 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4119 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4120 eval ${pfx}libc_type=uclibc
4121 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4122 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4123 eval ${pfx}libc_type=glibc
4124 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4125 # MinGW headers can be installed on Cygwin, so check for newlib first.
4126 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4127 eval ${pfx}libc_type=newlib
4128 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4129 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4130 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4131 eval ${pfx}libc_type=mingw64
4132 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4133 eval test \$${pfx_no_}cc_type = "gcc" &&
4134 add_${pfx}cppflags -D__printf__=__gnu_printf__
4135 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4136 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4137 eval ${pfx}libc_type=mingw32
4138 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4139 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4140 die "ERROR: MinGW32 runtime version must be >= 3.15."
4141 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4142 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4143 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4144 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4145 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4146 eval test \$${pfx_no_}cc_type = "gcc" &&
4147 add_${pfx}cppflags -D__printf__=__gnu_printf__
4148 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4149 eval ${pfx}libc_type=msvcrt
4150 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4151 if [ "$pfx" = host_ ]; then
4152 add_host_cppflags -Dsnprintf=_snprintf
4153 else
4154 add_compat strtod.o strtod=avpriv_strtod
4155 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4156 _snprintf=avpriv_snprintf \
4157 vsnprintf=avpriv_vsnprintf
4158 fi
4159 fi
4160 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4161 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4162 # 0x601 by default unless something else is set by the user.
4163 # This can easily lead to us detecting functions only present
4164 # in such new versions and producing binaries requiring windows 7.0.
4165 # Therefore explicitly set the default to XP unless the user has
4166 # set something else on the command line.
4167 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4168 # family. For these cases, configure is free to use any functions
4169 # found in the SDK headers by default. (Alternatively, we could force
4170 # _WIN32_WINNT to 0x0602 in that case.)
4171 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4172 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4173 #ifdef WINAPI_FAMILY
4174 #include <winapifamily.h>
4175 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4176 #error not desktop
4177 #endif
4178 #endif
4179 EOF
4180 if [ "$pfx" = "" ]; then
4181 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4182 fi
4183 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4184 eval ${pfx}libc_type=klibc
4185 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4186 eval ${pfx}libc_type=bionic
4187 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4188 eval ${pfx}libc_type=solaris
4189 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4190 else
4191 eval ${pfx}libc_type=default
4192 add_${pfx}cppflags -D_DEFAULT_SOURCE
4193 fi
4194 }
4195
4196 probe_libc
4197 test -n "$libc_type" && enable libc_$libc_type
4198 probe_libc host_
4199 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4200
4201 # hacks for compiler/libc/os combinations
4202
4203 case $libc_type in
4204 bionic)
4205 add_compat strtod.o strtod=avpriv_strtod
4206 ;;
4207 glibc)
4208 if enabled tms470; then
4209 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4210 add_cppflags -D__USER_LABEL_PREFIX__=
4211 add_cppflags -D__builtin_memset=memset
4212 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4213 add_cflags -pds=48 # incompatible redefinition of macro
4214 elif enabled ccc; then
4215 add_ldflags -Wl,-z,now # calls to libots crash without this
4216 fi
4217 ;;
4218 esac
4219
4220 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4221 add_cppflags '-I\$(SRC_PATH)/compat/float'
4222
4223 esc(){
4224 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4225 }
4226
4227 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4228
4229 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4230
4231 set_default $PATHS_LIST
4232 set_default nm
4233
4234 # we need to build at least one lib type
4235 if ! enabled_any static shared; then
4236 cat <<EOF
4237 At least one library type must be built.
4238 Specify --enable-static to build the static libraries or --enable-shared to
4239 build the shared libraries as well. To only build the shared libraries specify
4240 --disable-static in addition to --enable-shared.
4241 EOF
4242 exit 1
4243 fi
4244
4245 disabled optimizations || check_cflags -fomit-frame-pointer
4246
4247 enable_weak_pic() {
4248 disabled pic && return
4249 enable pic
4250 add_cppflags -DPIC
4251 case "$target_os" in
4252 mingw*|cygwin*)
4253 ;;
4254 *)
4255 add_cflags -fPIC
4256 ;;
4257 esac
4258 add_asflags -fPIC
4259 }
4260
4261 enabled pic && enable_weak_pic
4262
4263 check_cc <<EOF || die "Symbol mangling check failed."
4264 int ff_extern;
4265 EOF
4266 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4267 extern_prefix=${sym%%ff_extern*}
4268
4269 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4270
4271 _restrict=
4272 for restrict_keyword in restrict __restrict__ __restrict; do
4273 check_cc <<EOF && _restrict=$restrict_keyword && break
4274 void foo(char * $restrict_keyword p);
4275 EOF
4276 done
4277
4278 check_cc <<EOF && enable pragma_deprecated
4279 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4280 EOF
4281
4282 check_cc <<EOF && enable attribute_packed
4283 struct { int x; } __attribute__((packed)) x;
4284 EOF
4285
4286 check_cc <<EOF && enable attribute_may_alias
4287 union { int x; } __attribute__((may_alias)) x;
4288 EOF
4289
4290 check_cc <<EOF || die "endian test failed"
4291 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4292 EOF
4293 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4294
4295 check_gas() {
4296 log "check_gas using '$as' as AS"
4297 # :vararg is used on aarch64, arm and ppc altivec
4298 check_as <<EOF || return 1
4299 .macro m n, y:vararg=0
4300 \n: .int \y
4301 .endm
4302 m x
4303 EOF
4304 # .altmacro is only used in arm asm
4305 ! enabled arm || check_as <<EOF || return 1
4306 .altmacro
4307 EOF
4308 enable gnu_as
4309 return 0
4310 }
4311
4312 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4313 nogas=:
4314 enabled_any arm aarch64 && nogas=die
4315 enabled_all ppc altivec && nogas=warn
4316 as_noop=-v
4317
4318 case $as_type in
4319 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4320 gcc) gaspp_as_type=gas ;;
4321 *) gaspp_as_type=$as_type ;;
4322 esac
4323
4324 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4325
4326 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4327 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4328
4329 if ! check_gas ; then
4330 as=${gas:=$as}
4331 check_gas || \
4332 $nogas "GNU assembler not found, install/update gas-preprocessor"
4333 fi
4334
4335 check_as <<EOF && enable as_func
4336 .func test
4337 .endfunc
4338 EOF
4339 fi
4340
4341 check_inline_asm inline_asm_labels '"1:\n"'
4342
4343 if enabled aarch64; then
4344 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4345 # internal assembler in clang 3.3 does not support this instruction
4346 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4347 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4348
4349 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4350
4351 elif enabled alpha; then
4352
4353 check_cflags -mieee
4354
4355 elif enabled arm; then
4356
4357 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4358 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4359 enabled thumb && check_cflags -mthumb || check_cflags -marm
4360
4361 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4362 enable vfp_args
4363 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4364 enable vfp_args
4365 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4366 case "${cross_prefix:-$cc}" in