configure: Bail out early if neither static nor shared libs are built
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [avbuild/config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix_default]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs (USE WITH CARE)
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-pod2man do not build manual pages
116 --disable-texi2html do not build HTML documentation
117 --disable-avdevice disable libavdevice build
118 --disable-avcodec disable libavcodec build
119 --disable-avformat disable libavformat build
120 --disable-avutil disable libavutil build
121 --disable-swscale disable libswscale build
122 --disable-avfilter disable video filter support [no]
123 --disable-avresample disable libavresample build [no]
124 --disable-pthreads disable pthreads [auto]
125 --disable-w32threads disable Win32 threads [auto]
126 --disable-network disable network support [no]
127 --disable-dct disable DCT code
128 --disable-error-resilience disable error resilience code
129 --disable-lsp disable LSP code
130 --disable-lzo disable LZO decoder code
131 --disable-mdct disable MDCT code
132 --disable-rdft disable RDFT code
133 --disable-fft disable FFT code
134 --disable-faan disable floating point AAN (I)DCT code
135
136 Individual component options:
137 --disable-everything disable all components listed below
138 --disable-encoder=NAME disable encoder NAME
139 --enable-encoder=NAME enable encoder NAME
140 --disable-encoders disable all encoders
141 --disable-decoder=NAME disable decoder NAME
142 --enable-decoder=NAME enable decoder NAME
143 --disable-decoders disable all decoders
144 --disable-hwaccel=NAME disable hwaccel NAME
145 --enable-hwaccel=NAME enable hwaccel NAME
146 --disable-hwaccels disable all hwaccels
147 --disable-muxer=NAME disable muxer NAME
148 --enable-muxer=NAME enable muxer NAME
149 --disable-muxers disable all muxers
150 --disable-demuxer=NAME disable demuxer NAME
151 --enable-demuxer=NAME enable demuxer NAME
152 --disable-demuxers disable all demuxers
153 --enable-parser=NAME enable parser NAME
154 --disable-parser=NAME disable parser NAME
155 --disable-parsers disable all parsers
156 --enable-bsf=NAME enable bitstream filter NAME
157 --disable-bsf=NAME disable bitstream filter NAME
158 --disable-bsfs disable all bitstream filters
159 --enable-protocol=NAME enable protocol NAME
160 --disable-protocol=NAME disable protocol NAME
161 --disable-protocols disable all protocols
162 --enable-indev=NAME enable input device NAME
163 --disable-indev=NAME disable input device NAME
164 --disable-indevs disable input devices
165 --disable-devices disable all devices
166 --enable-filter=NAME enable filter NAME
167 --disable-filter=NAME disable filter NAME
168 --disable-filters disable all filters
169
170 External library support:
171
172 Using any of the following switches will allow Libav to link to the
173 corresponding external library. All the components depending on that library
174 will become enabled, if all their other dependencies are met and they are not
175 explicitly disabled. E.g. --enable-libwavpack will enable linking to
176 libwavpack and allow the libwavpack encoder to be built, unless it is
177 specifically disabled with --disable-encoder=libwavpack.
178
179 Note that only the system libraries are auto-detected. All the other external
180 libraries must be explicitly enabled.
181
182 Also note that the following help text describes the purpose of the libraries
183 themselves, not all their features will necessarily be usable by Libav.
184
185 --enable-avisynth video frameserver
186 --enable-avxsynth Linux version of AviSynth
187 --enable-bzlib bzip2 compression [autodetect]
188 --enable-frei0r video filtering plugins
189 --enable-gnutls crypto
190 --enable-libbs2b Bauer stereophonic-to-binaural DSP
191 --enable-libcdio audio CD input
192 --enable-libdc1394 IEEE 1394/Firewire camera input
193 --enable-libdcadec DCA audio decoding
194 --enable-libfaac AAC audio encoding
195 --enable-libfdk-aac AAC audio encoding/decoding
196 --enable-libfontconfig font configuration and management
197 --enable-libfreetype font rendering
198 --enable-libgsm GSM audio encoding/decoding
199 --enable-libhdcd HDCD decoding filter
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libjack JACK audio sound server
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-cuvid Nvidia CUVID video decode acceleration
236 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
237 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
238 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
239 --enable-libnpp Nvidia CUDA processing
240 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
241 --enable-nvenc Nvidia video encoding
242 --enable-omx OpenMAX IL
243 --enable-omx-rpi OpenMAX IL for Raspberry Pi
244 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
245 --enable-vda Apple Video Decode Acceleration [auto]
246 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
247
248 Toolchain options:
249 --arch=ARCH select architecture [$arch]
250 --cpu=CPU select the minimum required CPU (affects
251 instruction selection, may crash on older CPUs)
252 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
253 --enable-cross-compile assume a cross-compiler is used
254 --sysroot=PATH root of cross-build tree
255 --sysinclude=PATH location of cross-build system headers
256 --target-os=OS compiler targets OS [$target_os]
257 --target-exec=CMD command to run executables on target
258 --target-path=DIR path to view of build directory on target
259 --target-samples=DIR path to samples directory on target
260 --toolchain=NAME set tool defaults according to NAME
261 --nm=NM use nm tool
262 --ar=AR use archive tool AR [$ar_default]
263 --as=AS use assembler AS [$as_default]
264 --cc=CC use C compiler CC [$cc_default]
265 --objcc=OCC use ObjC compiler OCC [$cc_default]
266 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
267 --ld=LD use linker LD
268 --x86asmexe=X86ASM use x86 assembler X86ASM
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
300
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-x86asm disable use of standalone x86 assembly
328
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --disable-valgrind-backtrace do not print a backtrace under Valgrind
341 (only applies to --disable-optimizations builds)
342 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
343 in the name) of tests whose result is ignored
344
345 NOTE: Object files are built at the place where configure is launched.
346 EOF
347 exit 0
348 }
349
350 quotes='""'
351
352 log(){
353 echo "$@" >> $logfile
354 }
355
356 log_file(){
357 log BEGIN $1
358 i=1
359 while read line; do
360 printf '%5s %s\n' "${i}" "${line}"
361 i=$(($i+1))
362 done < $1 >> $logfile
363 log END $1
364 }
365
366 echolog(){
367 log "$@"
368 echo "$@"
369 }
370
371 warn(){
372 log "WARNING: $*"
373 WARNINGS="${WARNINGS}WARNING: $*\n"
374 }
375
376 die(){
377 echolog "$@"
378 cat <<EOF
379
380 If you think configure made a mistake, make sure you are using the latest
381 version from Git. If the latest version fails, report the problem to the
382 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
383 EOF
384 if disabled logging; then
385 cat <<EOF
386 Rerun configure with logging enabled (do not use --disable-logging), and
387 include the log this produces with your report.
388 EOF
389 else
390 cat <<EOF
391 Include the log file "$logfile" produced by configure as this will help
392 solving the problem.
393 EOF
394 fi
395 exit 1
396 }
397
398 # Avoid locale weirdness, besides we really just want to translate ASCII.
399 toupper(){
400 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
401 }
402
403 tolower(){
404 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
405 }
406
407 c_escape(){
408 echo "$*" | sed 's/["\\]/\\\0/g'
409 }
410
411 sh_quote(){
412 v=$(echo "$1" | sed "s/'/'\\\\''/g")
413 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
414 echo "$v"
415 }
416
417 cleanws(){
418 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
419 }
420
421 filter(){
422 pat=$1
423 shift
424 for v; do
425 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
426 done
427 }
428
429 filter_out(){
430 pat=$1
431 shift
432 for v; do
433 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
434 done
435 }
436
437 map(){
438 m=$1
439 shift
440 for v; do eval $m; done
441 }
442
443 add_suffix(){
444 suffix=$1
445 shift
446 for v; do echo ${v}${suffix}; done
447 }
448
449 set_all(){
450 value=$1
451 shift
452 for var in $*; do
453 eval $var=$value
454 done
455 }
456
457 set_weak(){
458 value=$1
459 shift
460 for var; do
461 eval : \${$var:=$value}
462 done
463 }
464
465 sanitize_var_name(){
466 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
467 }
468
469 set_sanitized(){
470 var=$1
471 shift
472 eval $(sanitize_var_name "$var")='$*'
473 }
474
475 get_sanitized(){
476 eval echo \$$(sanitize_var_name "$1")
477 }
478
479 pushvar(){
480 for pvar in $*; do
481 eval level=\${${pvar}_level:=0}
482 eval ${pvar}_${level}="\$$pvar"
483 eval ${pvar}_level=$(($level+1))
484 done
485 }
486
487 popvar(){
488 for pvar in $*; do
489 eval level=\${${pvar}_level:-0}
490 test $level = 0 && continue
491 eval level=$(($level-1))
492 eval $pvar="\${${pvar}_${level}}"
493 eval ${pvar}_level=$level
494 eval unset ${pvar}_${level}
495 done
496 }
497
498 enable(){
499 set_all yes $*
500 }
501
502 disable(){
503 set_all no $*
504 }
505
506 enable_weak(){
507 set_weak yes $*
508 }
509
510 disable_weak(){
511 set_weak no $*
512 }
513
514 enable_sanitized(){
515 for var; do
516 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517 done
518 }
519
520 disable_sanitized(){
521 for var; do
522 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
523 done
524 }
525
526 do_enable_deep(){
527 for var; do
528 enabled $var && continue
529 eval sel="\$${var}_select"
530 eval sgs="\$${var}_suggest"
531 pushvar var sgs
532 enable_deep $sel
533 popvar sgs
534 enable_deep_weak $sgs
535 popvar var
536 done
537 }
538
539 enable_deep(){
540 do_enable_deep $*
541 enable $*
542 }
543
544 enable_deep_weak(){
545 for var; do
546 disabled $var && continue
547 pushvar var
548 do_enable_deep $var
549 popvar var
550 enable_weak $var
551 done
552 }
553
554 enabled(){
555 test "${1#!}" = "$1" && op== || op=!=
556 eval test "x\$${1#!}" $op "xyes"
557 }
558
559 disabled(){
560 test "${1#!}" = "$1" && op== || op=!=
561 eval test "x\$${1#!}" $op "xno"
562 }
563
564 enabled_all(){
565 for opt; do
566 enabled $opt || return 1
567 done
568 }
569
570 disabled_all(){
571 for opt; do
572 disabled $opt || return 1
573 done
574 }
575
576 enabled_any(){
577 for opt; do
578 enabled $opt && return 0
579 done
580 }
581
582 disabled_any(){
583 for opt; do
584 disabled $opt && return 0
585 done
586 return 1
587 }
588
589 set_default(){
590 for opt; do
591 eval : \${$opt:=\$${opt}_default}
592 done
593 }
594
595 is_in(){
596 value=$1
597 shift
598 for var in $*; do
599 [ $var = $value ] && return 0
600 done
601 return 1
602 }
603
604 check_deps(){
605 for cfg; do
606 enabled ${cfg}_checking && die "Circular dependency for $cfg."
607 disabled ${cfg}_checking && continue
608 enable ${cfg}_checking
609
610 eval dep_all="\$${cfg}_deps"
611 eval dep_any="\$${cfg}_deps_any"
612 eval dep_con="\$${cfg}_conflict"
613 eval dep_sel="\$${cfg}_select"
614 eval dep_sgs="\$${cfg}_suggest"
615 eval dep_ifa="\$${cfg}_if"
616 eval dep_ifn="\$${cfg}_if_any"
617
618 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
619 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
620 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
621
622 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
623 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
624 enabled_all $dep_all || disable $cfg
625 enabled_any $dep_any || disable $cfg
626 disabled_all $dep_con || disable $cfg
627 disabled_any $dep_sel && disable $cfg
628
629 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
630
631 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
632 # filter out library deps, these do not belong in extralibs
633 is_in $dep $LIBRARY_LIST && continue
634 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
635 done
636
637 disable ${cfg}_checking
638 done
639 }
640
641 print_config(){
642 pfx=$1
643 files=$2
644 shift 2
645 map 'eval echo "$v \${$v:-no}"' "$@" |
646 awk "BEGIN { split(\"$files\", files) }
647 {
648 c = \"$pfx\" toupper(\$1);
649 v = \$2;
650 sub(/yes/, 1, v);
651 sub(/no/, 0, v);
652 for (f in files) {
653 file = files[f];
654 if (file ~ /\\.h\$/) {
655 printf(\"#define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.asm\$/) {
657 printf(\"%%define %s %d\\n\", c, v) >>file;
658 } else if (file ~ /\\.mak\$/) {
659 n = -v ? \"\" : \"!\";
660 printf(\"%s%s=yes\\n\", n, c) >>file;
661 }
662 }
663 }"
664 }
665
666 print_enabled(){
667 suf=$1
668 shift
669 for v; do
670 enabled $v && printf "%s\n" ${v%$suf}
671 done
672 }
673
674 append(){
675 var=$1
676 shift
677 eval "$var=\"\$$var $*\""
678 }
679
680 prepend(){
681 var=$1
682 shift
683 eval "$var=\"$* \$$var\""
684 }
685
686 unique(){
687 var=$1
688 uniq_list=""
689 for tok in $(eval echo \$$var); do
690 uniq_list="$(filter_out $tok $uniq_list) $tok"
691 done
692 eval "$var=\"${uniq_list}\""
693 }
694
695 resolve(){
696 var=$1
697 tmpvar=
698 for entry in $(eval echo \$$var); do
699 tmpvar="$tmpvar $(eval echo \$${entry})"
700 done
701 eval "$var=\"${tmpvar}\""
702 }
703
704 add_cppflags(){
705 append CPPFLAGS "$@"
706 }
707
708 add_cflags(){
709 append CFLAGS $($cflags_filter "$@")
710 }
711
712 add_cflags_headers(){
713 append CFLAGS_HEADERS $($cflags_filter "$@")
714 }
715
716 add_asflags(){
717 append ASFLAGS $($asflags_filter "$@")
718 }
719
720 add_objcflags(){
721 append OBJCFLAGS $($objcflags_filter "$@")
722 }
723
724 add_ldflags(){
725 append LDFLAGS $($ldflags_filter "$@")
726 }
727
728 add_ldexeflags(){
729 append LDEXEFLAGS $($ldflags_filter "$@")
730 }
731
732 add_ldsoflags(){
733 append LDSOFLAGS $($ldflags_filter "$@")
734 }
735
736 add_stripflags(){
737 append STRIPFLAGS "$@"
738 }
739
740 add_extralibs(){
741 prepend extralibs $($ldflags_filter "$@")
742 }
743
744 add_host_cppflags(){
745 append host_cppflags "$@"
746 }
747
748 add_host_cflags(){
749 append host_cflags $($host_cflags_filter "$@")
750 }
751
752 add_host_ldflags(){
753 append host_ldflags $($host_ldflags_filter "$@")
754 }
755
756 add_compat(){
757 append compat_objs $1
758 shift
759 map 'add_cppflags -D$v' "$@"
760 }
761
762 check_cmd(){
763 log "$@"
764 "$@" >> $logfile 2>&1
765 }
766
767 cc_o(){
768 eval printf '%s\\n' $CC_O
769 }
770
771 cc_e(){
772 eval printf '%s\\n' $CC_E
773 }
774
775 check_cc(){
776 log check_cc "$@"
777 cat > $TMPC
778 log_file $TMPC
779 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
780 }
781
782 check_objcc(){
783 log check_objcc "$@"
784 cat > $TMPC
785 log_file $TMPC
786 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
787 }
788
789 check_cpp(){
790 log check_cpp "$@"
791 cat > $TMPC
792 log_file $TMPC
793 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
794 }
795
796 as_o(){
797 eval printf '%s\\n' $AS_O
798 }
799
800 check_as(){
801 log check_as "$@"
802 cat > $TMPS
803 log_file $TMPS
804 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
805 }
806
807 check_inline_asm(){
808 log check_inline_asm "$@"
809 name="$1"
810 code="$2"
811 shift 2
812 disable $name
813 check_cc "$@" <<EOF && enable $name
814 void foo(void){ __asm__ volatile($code); }
815 EOF
816 }
817
818 check_insn(){
819 log check_insn "$@"
820 check_inline_asm ${1}_inline "\"$2\""
821 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
822 }
823
824 check_x86asm(){
825 log check_x86asm "$@"
826 echo "$1" > $TMPS
827 log_file $TMPS
828 shift 1
829 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
830 }
831
832 ld_o(){
833 eval printf '%s\\n' $LD_O
834 }
835
836 check_ld(){
837 log check_ld "$@"
838 flags=$(filter_out '-l*' "$@")
839 libs=$(filter '-l*' "$@")
840 check_cc $($cflags_filter $flags) || return
841 flags=$($ldflags_filter $flags)
842 libs=$($ldflags_filter $libs)
843 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
844 }
845
846 print_include(){
847 hdr=$1
848 test "${hdr%.h}" = "${hdr}" &&
849 echo "#include $hdr" ||
850 echo "#include <$hdr>"
851 }
852
853 check_code(){
854 log check_code "$@"
855 check=$1
856 headers=$2
857 code=$3
858 shift 3
859 {
860 for hdr in $headers; do
861 print_include $hdr
862 done
863 echo "int main(void) { $code; return 0; }"
864 } | check_$check "$@"
865 }
866
867 check_cppflags(){
868 log check_cppflags "$@"
869 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
870 #include <stdlib.h>;
871 EOF
872 }
873
874 test_cflags(){
875 log test_cflags "$@"
876 set -- $($cflags_filter "$@")
877 check_cc "$@" <<EOF
878 int x;
879 EOF
880 }
881
882 check_cflags(){
883 log check_cflags "$@"
884 test_cflags "$@" && add_cflags "$@"
885 }
886
887 test_objcflags(){
888 log test_objcflags "$@"
889 set -- $($objcflags_filter "$@")
890 check_objcc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_objcflags(){
896 log check_objcflags "$@"
897 test_objcflags "$@" && add_objcflags "$@"
898 }
899
900 test_ldflags(){
901 log test_ldflags "$@"
902 check_ld "$@" <<EOF
903 int main(void){ return 0; }
904 EOF
905 }
906
907 check_ldflags(){
908 log check_ldflags "$@"
909 test_ldflags "$@" && add_ldflags "$@"
910 }
911
912 test_stripflags(){
913 log test_stripflags "$@"
914 # call check_cc to get a fresh TMPO
915 check_cc <<EOF
916 int main(void) { return 0; }
917 EOF
918 check_cmd $strip $STRIPFLAGS "$@" $TMPO
919 }
920
921 check_stripflags(){
922 log check_stripflags "$@"
923 test_stripflags "$@" && add_stripflags "$@"
924 }
925
926 check_header(){
927 log check_header "$@"
928 headers=$1
929 shift
930 disable_sanitized $headers
931 {
932 for hdr in $headers; do
933 print_include $hdr
934 done
935 echo "int x;"
936 } | check_cpp "$@" && enable_sanitized $headers
937 }
938
939 check_func(){
940 log check_func "$@"
941 func=$1
942 shift
943 disable $func
944 check_ld "$@" <<EOF && enable $func
945 extern int $func();
946 int main(void){ $func(); }
947 EOF
948 }
949
950 check_mathfunc(){
951 log check_mathfunc "$@"
952 func=$1
953 narg=$2
954 shift 2
955 test $narg = 2 && args="f, g" || args="f"
956 disable $func
957 check_ld "$@" <<EOF && enable $func
958 #include <math.h>
959 float foo(float f, float g) { return $func($args); }
960 int main(void){ return 0; }
961 EOF
962 }
963
964 check_func_headers(){
965 log check_func_headers "$@"
966 headers=$1
967 funcs=$2
968 shift 2
969 {
970 for hdr in $headers; do
971 print_include $hdr
972 done
973 for func in $funcs; do
974 echo "long check_$func(void) { return (long) $func; }"
975 done
976 echo "int main(void) { return 0; }"
977 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
978 }
979
980 check_cpp_condition(){
981 log check_cpp_condition "$@"
982 header=$1
983 condition=$2
984 shift 2
985 check_cpp "$@" <<EOF
986 #include <$header>
987 #if !($condition)
988 #error "unsatisfied condition: $condition"
989 #endif
990 EOF
991 }
992
993 test_cflags_cpp(){
994 log test_cflags_cpp "$@"
995 flags=$1
996 condition=$2
997 shift 2
998 set -- $($cflags_filter "$flags")
999 check_cpp "$@" <<EOF
1000 #if !($condition)
1001 #error "unsatisfied condition: $condition"
1002 #endif
1003 EOF
1004 }
1005
1006 check_lib(){
1007 log check_lib "$@"
1008 name="$1"
1009 headers="$2"
1010 funcs="$3"
1011 shift 3
1012 disable $name
1013 check_func_headers "$headers" "$funcs" "$@" &&
1014 enable $name && eval ${name}_extralibs="\$@"
1015 }
1016
1017 test_pkg_config(){
1018 log test_pkg_config "$@"
1019 name="$1"
1020 pkg_version="$2"
1021 pkg="${2%% *}"
1022 headers="$3"
1023 funcs="$4"
1024 shift 4
1025 disable $name
1026 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1027 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1028 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1029 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1030 enable $name &&
1031 set_sanitized "${name}_cflags" $pkg_cflags &&
1032 set_sanitized "${name}_extralibs" $pkg_libs
1033 }
1034
1035 check_pkg_config(){
1036 log check_pkg_config "$@"
1037 name="$1"
1038 test_pkg_config "$@" &&
1039 eval add_cflags \$${name}_cflags
1040 }
1041
1042 check_exec(){
1043 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1044 }
1045
1046 check_exec_crash(){
1047 log check_exec_crash "$@"
1048 code=$(cat)
1049
1050 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1051 # are safe but may not be available everywhere. Thus we use
1052 # raise(SIGTERM) instead. The check is run in a subshell so we
1053 # can redirect the "Terminated" message from the shell. SIGBUS
1054 # is not defined by standard C so it is used conditionally.
1055
1056 (check_exec "$@") >> $logfile 2>&1 <<EOF
1057 #include <signal.h>
1058 static void sighandler(int sig){
1059 raise(SIGTERM);
1060 }
1061 int foo(void){
1062 $code
1063 }
1064 int (*func_ptr)(void) = foo;
1065 int main(void){
1066 signal(SIGILL, sighandler);
1067 signal(SIGFPE, sighandler);
1068 signal(SIGSEGV, sighandler);
1069 #ifdef SIGBUS
1070 signal(SIGBUS, sighandler);
1071 #endif
1072 return func_ptr();
1073 }
1074 EOF
1075 }
1076
1077 check_type(){
1078 log check_type "$@"
1079 headers=$1
1080 type=$2
1081 shift 2
1082 disable_sanitized "$type"
1083 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1084 }
1085
1086 check_struct(){
1087 log check_struct "$@"
1088 headers=$1
1089 struct=$2
1090 member=$3
1091 shift 3
1092 disable_sanitized "${struct}_${member}"
1093 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1094 enable_sanitized "${struct}_${member}"
1095 }
1096
1097 check_builtin(){
1098 log check_builtin "$@"
1099 name=$1
1100 headers=$2
1101 builtin=$3
1102 shift 3
1103 disable "$name"
1104 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1105 }
1106
1107 check_compile_assert(){
1108 log check_compile_assert "$@"
1109 name=$1
1110 headers=$2
1111 condition=$3
1112 shift 3
1113 disable "$name"
1114 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1115 }
1116
1117 require(){
1118 log require "$@"
1119 name_version="$1"
1120 name="${1%% *}"
1121 headers="$2"
1122 func="$3"
1123 shift 3
1124 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1125 }
1126
1127 require_header(){
1128 log require "$@"
1129 headers="$1"
1130 shift
1131 check_header "$headers" "$@" || die "ERROR: $headers not found"
1132 }
1133
1134 require_cpp_condition(){
1135 log require "$@"
1136 header="$1"
1137 condition="$2"
1138 shift 2
1139 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1140 }
1141
1142 require_pkg_config(){
1143 log require_pkg_config "$@"
1144 pkg_version="$2"
1145 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1146 }
1147
1148 hostcc_e(){
1149 eval printf '%s\\n' $HOSTCC_E
1150 }
1151
1152 hostcc_o(){
1153 eval printf '%s\\n' $HOSTCC_O
1154 }
1155
1156 check_host_cc(){
1157 log check_host_cc "$@"
1158 cat > $TMPC
1159 log_file $TMPC
1160 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1161 }
1162
1163 check_host_cpp(){
1164 log check_host_cpp "$@"
1165 cat > $TMPC
1166 log_file $TMPC
1167 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1168 }
1169
1170 check_host_cppflags(){
1171 log check_host_cppflags "$@"
1172 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1173 #include <stdlib.h>;
1174 EOF
1175 }
1176
1177 check_host_cflags(){
1178 log check_host_cflags "$@"
1179 set -- $($host_cflags_filter "$@")
1180 check_host_cc "$@" <<EOF && append host_cflags "$@"
1181 int x;
1182 EOF
1183 }
1184
1185 check_host_cpp_condition(){
1186 log check_host_cpp_condition "$@"
1187 header=$1
1188 condition=$2
1189 shift 2
1190 check_host_cpp "$@" <<EOF
1191 #include <$header>
1192 #if !($condition)
1193 #error "unsatisfied condition: $condition"
1194 #endif
1195 EOF
1196 }
1197
1198 apply(){
1199 file=$1
1200 shift
1201 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1202 }
1203
1204 cp_if_changed(){
1205 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1206 mkdir -p "$(dirname $2)"
1207 cp -f "$1" "$2"
1208 }
1209
1210 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1211 # system-dependent things.
1212
1213 AVCODEC_COMPONENTS="
1214 bsfs
1215 decoders
1216 encoders
1217 hwaccels
1218 parsers
1219 "
1220
1221 AVDEVICE_COMPONENTS="
1222 indevs
1223 "
1224 AVFILTER_COMPONENTS="
1225 filters
1226 "
1227 AVFORMAT_COMPONENTS="
1228 demuxers
1229 muxers
1230 protocols
1231 "
1232
1233 COMPONENT_LIST="
1234 $AVCODEC_COMPONENTS
1235 $AVDEVICE_COMPONENTS
1236 $AVFILTER_COMPONENTS
1237 $AVFORMAT_COMPONENTS
1238 "
1239
1240 EXAMPLE_LIST="
1241 decode_audio_example
1242 decode_video_example
1243 encode_audio_example
1244 encode_video_example
1245 filter_audio_example
1246 metadata_example
1247 output_example
1248 qsvdec_example
1249 transcode_aac_example
1250 "
1251
1252 # catchall list of things that require external libs to link
1253 EXTRALIBS_LIST="
1254 cpu_init
1255 cws2fws
1256 "
1257
1258 HWACCEL_LIBRARY_NONFREE_LIST="
1259 cuda
1260 cuvid
1261 libnpp
1262 "
1263 HWACCEL_LIBRARY_LIST="
1264 $HWACCEL_LIBRARY_NONFREE_LIST
1265 d3d11va
1266 dxva2
1267 libmfx
1268 mmal
1269 nvenc
1270 omx
1271 vaapi
1272 vda
1273 vdpau
1274 "
1275
1276 EXTERNAL_LIBRARY_GPL_LIST="
1277 libcdio
1278 libx264
1279 libx265
1280 libxavs
1281 libxvid
1282 "
1283
1284 EXTERNAL_LIBRARY_NONFREE_LIST="
1285 libfaac
1286 libfdk_aac
1287 openssl
1288 "
1289
1290 EXTERNAL_LIBRARY_VERSION3_LIST="
1291 libopencore_amrnb
1292 libopencore_amrwb
1293 libvo_aacenc
1294 libvo_amrwbenc
1295 "
1296
1297 EXTERNAL_LIBRARY_LIST="
1298 $EXTERNAL_LIBRARY_GPL_LIST
1299 $EXTERNAL_LIBRARY_NONFREE_LIST
1300 $EXTERNAL_LIBRARY_VERSION3_LIST
1301 avisynth
1302 avxsynth
1303 frei0r
1304 gnutls
1305 libbs2b
1306 libdc1394
1307 libdcadec
1308 libfontconfig
1309 libfreetype
1310 libgsm
1311 libhdcd
1312 libilbc
1313 libjack
1314 libkvazaar
1315 libmp3lame
1316 libopencv
1317 libopenh264
1318 libopenjpeg
1319 libopus
1320 libpulse
1321 librtmp
1322 libschroedinger
1323 libsnappy
1324 libspeex
1325 libtheora
1326 libtwolame
1327 libvorbis
1328 libvpx
1329 libwavpack
1330 libwebp
1331 libxcb
1332 libxcb_shm
1333 libxcb_xfixes
1334 "
1335
1336 SYSTEM_LIBRARY_LIST="
1337 bzlib
1338 zlib
1339 "
1340
1341 FEATURE_LIST="
1342 gray
1343 hardcoded_tables
1344 omx_rpi
1345 runtime_cpudetect
1346 safe_bitstream_reader
1347 shared
1348 small
1349 sram
1350 static
1351 swscale_alpha
1352 "
1353
1354 LIBRARY_LIST="
1355 avcodec
1356 avdevice
1357 avfilter
1358 avformat
1359 avresample
1360 avutil
1361 swscale
1362 "
1363
1364 LICENSE_LIST="
1365 gpl
1366 nonfree
1367 version3
1368 "
1369
1370 PROGRAM_LIST="
1371 avconv
1372 avplay
1373 avprobe
1374 "
1375
1376 SUBSYSTEM_LIST="
1377 dct
1378 doc
1379 error_resilience
1380 faan
1381 fft
1382 lsp
1383 lzo
1384 mdct
1385 network
1386 rdft
1387 "
1388
1389 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1390 CONFIG_LIST="
1391 $EXAMPLE_LIST
1392 $EXTERNAL_LIBRARY_LIST
1393 $HWACCEL_LIBRARY_LIST
1394 $FEATURE_LIST
1395 $LICENSE_LIST
1396 $LIBRARY_LIST
1397 $PROGRAM_LIST
1398 $SUBSYSTEM_LIST
1399 $SYSTEM_LIBRARY_LIST
1400 neon_clobber_test
1401 pic
1402 pod2man
1403 texi2html
1404 thumb
1405 valgrind_backtrace
1406 xmm_clobber_test
1407 $COMPONENT_LIST
1408 "
1409
1410 THREADS_LIST="
1411 pthreads
1412 w32threads
1413 "
1414
1415 ATOMICS_LIST="
1416 atomics_gcc
1417 atomics_suncc
1418 atomics_win32
1419 "
1420
1421 ARCH_LIST="
1422 aarch64
1423 alpha
1424 arm
1425 avr32
1426 avr32_ap
1427 avr32_uc
1428 bfin
1429 ia64
1430 m68k
1431 mips
1432 mips64
1433 parisc
1434 ppc
1435 ppc64
1436 s390
1437 sh4
1438 sparc
1439 sparc64
1440 tilegx
1441 tilepro
1442 tomi
1443 x86
1444 x86_32
1445 x86_64
1446 "
1447
1448 ARCH_EXT_LIST_ARM="
1449 armv5te
1450 armv6
1451 armv6t2
1452 armv8
1453 neon
1454 vfp
1455 vfpv3
1456 "
1457
1458 ARCH_EXT_LIST_X86_SIMD="
1459 amd3dnow
1460 amd3dnowext
1461 avx
1462 avx2
1463 fma3
1464 fma4
1465 mmx
1466 mmxext
1467 sse
1468 sse2
1469 sse3
1470 sse4
1471 sse42
1472 ssse3
1473 xop
1474 "
1475
1476 ARCH_EXT_LIST_PPC="
1477 altivec
1478 dcbzl
1479 ldbrx
1480 power8
1481 ppc4xx
1482 vsx
1483 "
1484
1485 ARCH_EXT_LIST_X86="
1486 $ARCH_EXT_LIST_X86_SIMD
1487 cpunop
1488 i686
1489 "
1490
1491 ARCH_EXT_LIST_MIPS="
1492 loongson
1493 mips32r1
1494 mips64r1
1495 mips32r2
1496 mips64r2
1497 mips32r6
1498 mips64r6
1499 "
1500
1501 ARCH_EXT_LIST="
1502 $ARCH_EXT_LIST_ARM
1503 $ARCH_EXT_LIST_MIPS
1504 $ARCH_EXT_LIST_PPC
1505 $ARCH_EXT_LIST_X86
1506 vis
1507 "
1508
1509 ARCH_FEATURES="
1510 aligned_stack
1511 fast_64bit
1512 fast_clz
1513 fast_cmov
1514 local_aligned_8
1515 local_aligned_16
1516 local_aligned_32
1517 simd_align_16
1518 simd_align_32
1519 "
1520
1521 BUILTIN_LIST="
1522 atomic_cas_ptr
1523 machine_rw_barrier
1524 MemoryBarrier
1525 mm_empty
1526 rdtsc
1527 sem_timedwait
1528 sync_val_compare_and_swap
1529 "
1530 HAVE_LIST_CMDLINE="
1531 inline_asm
1532 symver
1533 x86asm
1534 "
1535
1536 HAVE_LIST_PUB="
1537 bigendian
1538 fast_unaligned
1539 "
1540
1541 HEADERS_LIST="
1542 AVFoundation_AVFoundation_h
1543 arpa_inet_h
1544 cdio_paranoia_h
1545 cdio_paranoia_paranoia_h
1546 dispatch_dispatch_h
1547 dev_bktr_ioctl_bt848_h
1548 dev_bktr_ioctl_meteor_h
1549 dev_ic_bt8xx_h
1550 dev_video_bktr_ioctl_bt848_h
1551 dev_video_meteor_ioctl_meteor_h
1552 direct_h
1553 dxgidebug_h
1554 dxva_h
1555 io_h
1556 machine_ioctl_bt848_h
1557 machine_ioctl_meteor_h
1558 malloc_h
1559 poll_h
1560 sys_param_h
1561 sys_resource_h
1562 sys_select_h
1563 sys_soundcard_h
1564 sys_time_h
1565 sys_un_h
1566 sys_videoio_h
1567 unistd_h
1568 valgrind_valgrind_h
1569 windows_h
1570 winsock2_h
1571 "
1572
1573 INTRINSICS_LIST="
1574 intrinsics_neon
1575 "
1576
1577 MATH_FUNCS="
1578 atanf
1579 atan2f
1580 cbrtf
1581 cosf
1582 exp2
1583 exp2f
1584 expf
1585 isinf
1586 isnan
1587 ldexpf
1588 llrint
1589 llrintf
1590 log2
1591 log2f
1592 log10f
1593 lrint
1594 lrintf
1595 powf
1596 rint
1597 round
1598 roundf
1599 sinf
1600 trunc
1601 truncf
1602 "
1603
1604 SYSTEM_FUNCS="
1605 aligned_malloc
1606 clock_gettime
1607 closesocket
1608 CommandLineToArgvW
1609 fcntl
1610 getaddrinfo
1611 gethrtime
1612 getopt
1613 GetProcessAffinityMask
1614 GetProcessMemoryInfo
1615 GetProcessTimes
1616 getrusage
1617 GetSystemTimeAsFileTime
1618 gettimeofday
1619 gmtime_r
1620 inet_aton
1621 isatty
1622 localtime_r
1623 mach_absolute_time
1624 MapViewOfFile
1625 memalign
1626 mmap
1627 mprotect
1628 nanosleep
1629 posix_memalign
1630 sched_getaffinity
1631 SetConsoleTextAttribute
1632 setmode
1633 setrlimit
1634 Sleep
1635 strerror_r
1636 sysconf
1637 sysctl
1638 usleep
1639 VirtualAlloc
1640 "
1641
1642 TOOLCHAIN_FEATURES="
1643 as_arch_directive
1644 as_fpu_directive
1645 as_func
1646 as_object_arch
1647 asm_mod_q
1648 blocks_extension
1649 ebp_available
1650 ebx_available
1651 gnu_as
1652 ibm_asm
1653 inline_asm_labels
1654 pragma_deprecated
1655 symver_asm_label
1656 symver_gnu_asm
1657 vfp_args
1658 xform_asm
1659 xmm_clobbers
1660 "
1661
1662 TYPES_LIST="
1663 CONDITION_VARIABLE_Ptr
1664 CUVIDDECODECREATEINFO_bitDepthMinus8
1665 socklen_t
1666 struct_addrinfo
1667 struct_group_source_req
1668 struct_ip_mreq_source
1669 struct_ipv6_mreq
1670 struct_pollfd
1671 struct_rusage_ru_maxrss
1672 struct_sockaddr_in6
1673 struct_sockaddr_sa_len
1674 struct_sockaddr_storage
1675 struct_v4l2_frmivalenum_discrete
1676 "
1677
1678 HAVE_LIST="
1679 $ARCH_EXT_LIST
1680 $(add_suffix _external $ARCH_EXT_LIST)
1681 $(add_suffix _inline $ARCH_EXT_LIST)
1682 $ARCH_FEATURES
1683 $BUILTIN_LIST
1684 $HAVE_LIST_CMDLINE
1685 $HAVE_LIST_PUB
1686 $HEADERS_LIST
1687 $INTRINSICS_LIST
1688 $MATH_FUNCS
1689 $SYSTEM_FUNCS
1690 $THREADS_LIST
1691 $TOOLCHAIN_FEATURES
1692 $TYPES_LIST
1693 dos_paths
1694 libc_msvcrt
1695 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1696 sdl
1697 section_data_rel_ro
1698 threads
1699 uwp
1700 vaapi_drm
1701 vaapi_x11
1702 vdpau_x11
1703 wincrypt
1704 "
1705
1706 # options emitted with CONFIG_ prefix but not available on the command line
1707 CONFIG_EXTRA="
1708 aandcttables
1709 ac3dsp
1710 adts_header
1711 audio_frame_queue
1712 audiodsp
1713 blockdsp
1714 bswapdsp
1715 cabac
1716 cbs
1717 cbs_h264
1718 cbs_h265
1719 cbs_mpeg2
1720 dirac_parse
1721 dvprofile
1722 faandct
1723 faanidct
1724 fdctdsp
1725 flacdsp
1726 fmtconvert
1727 g722dsp
1728 gmp
1729 golomb
1730 gplv3
1731 h263dsp
1732 h264chroma
1733 h264dsp
1734 h264parse
1735 h264pred
1736 h264qpel
1737 hevcparse
1738 hpeldsp
1739 huffman
1740 huffyuvdsp
1741 huffyuvencdsp
1742 idctdsp
1743 iirfilter
1744 imdct15
1745 intrax8
1746 iso_media
1747 ividsp
1748 jpegtables
1749 lgplv3
1750 libx262
1751 libxcb_shape
1752 lpc
1753 lzf
1754 me_cmp
1755 mpeg_er
1756 mpegaudio
1757 mpegaudiodsp
1758 mpegaudioheader
1759 mpegvideo
1760 mpegvideoenc
1761 mss34dsp
1762 pixblockdsp
1763 qpeldsp
1764 qsv
1765 qsvdec
1766 qsvenc
1767 qsvvpp
1768 rangecoder
1769 riffdec
1770 riffenc
1771 rtpdec
1772 rtpenc_chain
1773 rv34dsp
1774 sinewin
1775 snappy
1776 srtp
1777 startcode
1778 texturedsp
1779 texturedspenc
1780 tpeldsp
1781 vaapi_encode
1782 vc1dsp
1783 videodsp
1784 vp3dsp
1785 vp56dsp
1786 vp8dsp
1787 wma_freqs
1788 wmv2dsp
1789 "
1790
1791 CMDLINE_SELECT="
1792 $ARCH_EXT_LIST
1793 $CONFIG_LIST
1794 $HAVE_LIST_CMDLINE
1795 $THREADS_LIST
1796 asm
1797 cross_compile
1798 debug
1799 extra_warnings
1800 logging
1801 lto
1802 optimizations
1803 rpath
1804 "
1805
1806 PATHS_LIST="
1807 bindir
1808 datadir
1809 docdir
1810 incdir
1811 libdir
1812 mandir
1813 prefix
1814 shlibdir
1815 "
1816
1817 CMDLINE_SET="
1818 $PATHS_LIST
1819 ar
1820 arch
1821 as
1822 cc
1823 objcc
1824 cpu
1825 cross_prefix
1826 custom_allocator
1827 dep_cc
1828 env
1829 extra_version
1830 host_cc
1831 host_cflags
1832 host_extralibs
1833 host_ld
1834 host_ldflags
1835 host_os
1836 ignore_tests
1837 ld
1838 logfile
1839 malloc_prefix
1840 nm
1841 optflags
1842 pkg_config
1843 pkg_config_flags
1844 samples
1845 sysinclude
1846 sysroot
1847 target_exec
1848 target_os
1849 target_path
1850 target_samples
1851 toolchain
1852 x86asmexe
1853 "
1854
1855 CMDLINE_APPEND="
1856 extra_cflags
1857 extra_objcflags
1858 host_cppflags
1859 "
1860
1861 # code dependency declarations
1862
1863 # architecture extensions
1864
1865 armv5te_deps="arm"
1866 armv6_deps="arm"
1867 armv6t2_deps="arm"
1868 armv8_deps="aarch64"
1869 neon_deps_any="aarch64 arm"
1870 intrinsics_neon_deps="neon"
1871 vfp_deps_any="aarch64 arm"
1872 vfpv3_deps="vfp"
1873
1874 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1875
1876 altivec_deps="ppc"
1877 dcbzl_deps="ppc"
1878 ldbrx_deps="ppc"
1879 ppc4xx_deps="ppc"
1880 vsx_deps="altivec"
1881 power8_deps="vsx"
1882
1883 loongson_deps="mips"
1884 mips32r1_deps="mips32"
1885 mips32r2_deps="mips32"
1886 mips32r6_deps="mips32"
1887 mips64r1_deps="mips64"
1888 mips64r2_deps="mips64"
1889 mips64r6_deps="mips64"
1890
1891 vis_deps="sparc"
1892
1893 cpunop_deps="i686"
1894 x86_64_select="i686"
1895 x86_64_suggest="fast_cmov"
1896
1897 amd3dnow_deps="mmx"
1898 amd3dnowext_deps="amd3dnow"
1899 i686_deps="x86"
1900 mmx_deps="x86"
1901 mmxext_deps="mmx"
1902 sse_deps="mmxext"
1903 sse2_deps="sse"
1904 sse3_deps="sse2"
1905 ssse3_deps="sse3"
1906 sse4_deps="ssse3"
1907 sse42_deps="sse4"
1908 avx_deps="sse42"
1909 xop_deps="avx"
1910 fma3_deps="avx"
1911 fma4_deps="avx"
1912 avx2_deps="avx"
1913
1914 mmx_external_deps="x86asm"
1915 mmx_inline_deps="inline_asm x86"
1916 mmx_suggest="mmx_external mmx_inline"
1917
1918 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1919 eval dep=\$${ext}_deps
1920 eval ${ext}_external_deps='"${dep}_external"'
1921 eval ${ext}_inline_deps='"${dep}_inline"'
1922 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1923 done
1924
1925 aligned_stack_if_any="aarch64 ppc x86"
1926 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1927 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1928 fast_unaligned_if_any="aarch64 ppc x86"
1929 simd_align_16_if_any="altivec neon sse"
1930 simd_align_32_if_any="avx"
1931
1932 # system capabilities
1933 symver_if_any="symver_asm_label symver_gnu_asm"
1934 valgrind_backtrace_conflict="optimizations"
1935 valgrind_backtrace_deps="valgrind_valgrind_h"
1936
1937 # threading support
1938 atomics_gcc_if="sync_val_compare_and_swap"
1939 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1940 atomics_win32_if="MemoryBarrier"
1941 atomics_native_if_any="$ATOMICS_LIST"
1942 w32threads_deps="atomics_native"
1943 threads_if_any="$THREADS_LIST"
1944
1945 # subsystems
1946 cbs_h264_select="cbs golomb"
1947 cbs_h265_select="cbs golomb"
1948 cbs_mpeg2_select="cbs"
1949 dct_select="rdft"
1950 dirac_parse_select="golomb"
1951 error_resilience_select="me_cmp"
1952 faandct_deps="faan"
1953 faandct_select="fdctdsp"
1954 faanidct_deps="faan"
1955 faanidct_select="idctdsp"
1956 h264dsp_select="startcode"
1957 hevcparse_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 clearvideo_decoder_select="idctdsp"
1997 cllc_decoder_select="bswapdsp"
1998 comfortnoise_encoder_select="lpc"
1999 cook_decoder_select="audiodsp mdct sinewin"
2000 cscd_decoder_select="lzo"
2001 cscd_decoder_suggest="zlib"
2002 dca_decoder_select="fmtconvert mdct"
2003 dds_decoder_select="texturedsp"
2004 dnxhd_decoder_select="blockdsp idctdsp"
2005 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2006 dvvideo_decoder_select="dvprofile idctdsp"
2007 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2008 dxa_decoder_deps="zlib"
2009 dxv_decoder_select="lzf texturedsp"
2010 eac3_decoder_select="ac3_decoder"
2011 eac3_encoder_select="ac3_encoder"
2012 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2013 eatgq_decoder_select="aandcttables idctdsp"
2014 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2015 exr_decoder_deps="zlib"
2016 ffv1_decoder_select="rangecoder"
2017 ffv1_encoder_select="rangecoder"
2018 ffvhuff_decoder_select="huffyuv_decoder"
2019 ffvhuff_encoder_select="huffyuv_encoder"
2020 fic_decoder_select="golomb"
2021 flac_decoder_select="flacdsp"
2022 flac_encoder_select="bswapdsp flacdsp lpc"
2023 flashsv_decoder_deps="zlib"
2024 flashsv_encoder_deps="zlib"
2025 flashsv2_decoder_deps="zlib"
2026 flv_decoder_select="h263_decoder"
2027 flv_encoder_select="h263_encoder"
2028 fourxm_decoder_select="blockdsp bswapdsp"
2029 fraps_decoder_select="bswapdsp huffman"
2030 g2m_decoder_deps="zlib"
2031 g2m_decoder_select="blockdsp idctdsp jpegtables"
2032 h261_decoder_select="mpeg_er mpegvideo"
2033 h261_encoder_select="aandcttables mpegvideoenc"
2034 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2035 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2036 h263i_decoder_select="h263_decoder"
2037 h263p_encoder_select="h263_encoder"
2038 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2039 h264_decoder_suggest="error_resilience"
2040 hap_decoder_select="snappy texturedsp"
2041 hap_encoder_deps="libsnappy"
2042 hap_encoder_select="texturedspenc"
2043 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2044 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2045 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2046 iac_decoder_select="imc_decoder"
2047 imc_decoder_select="bswapdsp fft mdct sinewin"
2048 indeo3_decoder_select="hpeldsp"
2049 indeo4_decoder_select="ividsp"
2050 indeo5_decoder_select="ividsp"
2051 interplay_video_decoder_select="hpeldsp"
2052 jpegls_decoder_select="mjpeg_decoder"
2053 jv_decoder_select="blockdsp"
2054 lagarith_decoder_select="huffyuvdsp"
2055 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2056 magicyuv_decoder_select="huffyuvdsp"
2057 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2058 metasound_decoder_select="lsp mdct sinewin"
2059 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2060 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2061 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2062 mjpegb_decoder_select="mjpeg_decoder"
2063 mlp_decoder_select="mlp_parser"
2064 motionpixels_decoder_select="bswapdsp"
2065 mp1_decoder_select="mpegaudio"
2066 mp1float_decoder_select="mpegaudio"
2067 mp2_decoder_select="mpegaudio"
2068 mp2float_decoder_select="mpegaudio"
2069 mp3_decoder_select="mpegaudio"
2070 mp3adu_decoder_select="mpegaudio"
2071 mp3adufloat_decoder_select="mpegaudio"
2072 mp3float_decoder_select="mpegaudio"
2073 mp3on4_decoder_select="mpegaudio"
2074 mp3on4float_decoder_select="mpegaudio"
2075 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2076 mpc8_decoder_select="mpegaudiodsp"
2077 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2078 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2079 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2080 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2081 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2082 mpeg4_encoder_select="h263_encoder"
2083 msa1_decoder_select="mss34dsp"
2084 msmpeg4v1_decoder_select="h263_decoder"
2085 msmpeg4v2_decoder_select="h263_decoder"
2086 msmpeg4v2_encoder_select="h263_encoder"
2087 msmpeg4v3_decoder_select="h263_decoder"
2088 msmpeg4v3_encoder_select="h263_encoder"
2089 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2090 mts2_decoder_select="mss34dsp"
2091 mxpeg_decoder_select="mjpeg_decoder"
2092 nellymoser_decoder_select="mdct sinewin"
2093 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2094 nuv_decoder_select="idctdsp lzo"
2095 on2avc_decoder_select="mdct"
2096 opus_decoder_deps="avresample"
2097 opus_decoder_select="imdct15"
2098 png_decoder_deps="zlib"
2099 png_encoder_deps="zlib"
2100 png_encoder_select="huffyuvencdsp"
2101 prores_decoder_select="idctdsp"
2102 prores_encoder_select="fdctdsp"
2103 qcelp_decoder_select="lsp"
2104 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2105 ra_144_encoder_select="audio_frame_queue lpc"
2106 ralf_decoder_select="golomb"
2107 rscc_decoder_deps="zlib"
2108 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2109 rv10_encoder_select="h263_encoder"
2110 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2111 rv20_encoder_select="h263_encoder"
2112 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2113 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2114 screenpresso_decoder_deps="zlib"
2115 sipr_decoder_select="lsp"
2116 sp5x_decoder_select="mjpeg_decoder"
2117 svq1_decoder_select="hpeldsp"
2118 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2119 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2120 svq3_decoder_suggest="zlib"
2121 tak_decoder_select="audiodsp"
2122 tdsc_decoder_deps="zlib"
2123 tdsc_decoder_select="mjpeg_decoder"
2124 theora_decoder_select="vp3_decoder"
2125 thp_decoder_select="mjpeg_decoder"
2126 tiff_decoder_suggest="zlib"
2127 tiff_encoder_suggest="zlib"
2128 truehd_decoder_select="mlp_decoder"
2129 truemotion2_decoder_select="bswapdsp"
2130 truespeech_decoder_select="bswapdsp"
2131 tscc_decoder_deps="zlib"
2132 txd_decoder_select="texturedsp"
2133 twinvq_decoder_select="mdct lsp sinewin"
2134 utvideo_decoder_select="bswapdsp huffyuvdsp"
2135 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2136 vble_decoder_select="huffyuvdsp"
2137 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2138 vc1image_decoder_select="vc1_decoder"
2139 vorbis_decoder_select="mdct"
2140 vorbis_encoder_select="mdct"
2141 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2142 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2143 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2144 vp6a_decoder_select="vp6_decoder"
2145 vp6f_decoder_select="vp6_decoder"
2146 vp7_decoder_select="h264pred videodsp vp8dsp"
2147 vp8_decoder_select="h264pred videodsp vp8dsp"
2148 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2149 webp_decoder_select="vp8_decoder"
2150 wmapro_decoder_select="mdct sinewin wma_freqs"
2151 wmav1_decoder_select="mdct sinewin wma_freqs"
2152 wmav1_encoder_select="mdct sinewin wma_freqs"
2153 wmav2_decoder_select="mdct sinewin wma_freqs"
2154 wmav2_encoder_select="mdct sinewin wma_freqs"
2155 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2156 wmv1_decoder_select="h263_decoder"
2157 wmv1_encoder_select="h263_encoder"
2158 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2159 wmv2_encoder_select="h263_encoder wmv2dsp"
2160 wmv3_decoder_select="vc1_decoder"
2161 wmv3image_decoder_select="wmv3_decoder"
2162 zerocodec_decoder_deps="zlib"
2163 zlib_decoder_deps="zlib"
2164 zlib_encoder_deps="zlib"
2165 zmbv_decoder_deps="zlib"
2166 zmbv_encoder_deps="zlib"
2167
2168 # hardware accelerators
2169 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2170 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
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_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2177 h264_cuvid_hwaccel_select="h264_decoder"
2178 h264_d3d11va_hwaccel_deps="d3d11va"
2179 h264_d3d11va_hwaccel_select="h264_decoder"
2180 h264_d3d11va2_hwaccel_deps="d3d11va"
2181 h264_d3d11va2_hwaccel_select="h264_decoder"
2182 h264_dxva2_hwaccel_deps="dxva2"
2183 h264_dxva2_hwaccel_select="h264_decoder"
2184 h264_mmal_hwaccel_deps="mmal"
2185 h264_qsv_hwaccel_deps="libmfx"
2186 h264_vaapi_hwaccel_deps="vaapi"
2187 h264_vaapi_hwaccel_select="h264_decoder"
2188 h264_vda_hwaccel_deps="vda"
2189 h264_vda_hwaccel_select="h264_decoder"
2190 h264_vda_old_hwaccel_deps="vda"
2191 h264_vda_old_hwaccel_select="h264_decoder"
2192 h264_vdpau_hwaccel_deps="vdpau"
2193 h264_vdpau_hwaccel_select="h264_decoder"
2194 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2195 hevc_cuvid_hwaccel_select="hevc_decoder"
2196 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2197 hevc_d3d11va_hwaccel_select="hevc_decoder"
2198 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2199 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2200 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2201 hevc_dxva2_hwaccel_select="hevc_decoder"
2202 hevc_qsv_hwaccel_deps="libmfx"
2203 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2204 hevc_vaapi_hwaccel_select="hevc_decoder"
2205 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2206 hevc_vdpau_hwaccel_select="hevc_decoder"
2207 mpeg1_vdpau_hwaccel_deps="vdpau"
2208 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2209 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2210 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2211 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2212 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2213 mpeg2_dxva2_hwaccel_deps="dxva2"
2214 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2215 mpeg2_mmal_hwaccel_deps="mmal"
2216 mpeg2_qsv_hwaccel_deps="libmfx"
2217 mpeg2_vaapi_hwaccel_deps="vaapi"
2218 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2219 mpeg2_vdpau_hwaccel_deps="vdpau"
2220 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2221 mpeg4_vaapi_hwaccel_deps="vaapi"
2222 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2223 mpeg4_vdpau_hwaccel_deps="vdpau"
2224 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2225 vc1_d3d11va_hwaccel_deps="d3d11va"
2226 vc1_d3d11va_hwaccel_select="vc1_decoder"
2227 vc1_d3d11va2_hwaccel_deps="d3d11va"
2228 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2229 vc1_dxva2_hwaccel_deps="dxva2"
2230 vc1_dxva2_hwaccel_select="vc1_decoder"
2231 vc1_mmal_hwaccel_deps="mmal"
2232 vc1_qsv_hwaccel_deps="libmfx"
2233 vc1_vaapi_hwaccel_deps="vaapi"
2234 vc1_vaapi_hwaccel_select="vc1_decoder"
2235 vc1_vdpau_hwaccel_deps="vdpau"
2236 vc1_vdpau_hwaccel_select="vc1_decoder"
2237 vp8_qsv_hwaccel_deps="libmfx"
2238 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2239 vp8_vaapi_hwaccel_select="vp8_decoder"
2240 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2241 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2242 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2243 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2244 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2245
2246 # hardware-accelerated codecs
2247 nvenc_deps_any="libdl LoadLibrary"
2248 omx_deps="libdl pthreads"
2249 omx_rpi_select="omx"
2250 qsv_deps="libmfx"
2251 qsvdec_select="qsv"
2252 qsvenc_select="qsv"
2253 qsvvpp_select="qsv"
2254 vaapi_encode_deps="vaapi"
2255
2256 hwupload_cuda_filter_deps="cuda"
2257 scale_npp_filter_deps="cuda libnpp"
2258
2259 h264_mmal_decoder_deps="mmal"
2260 h264_nvenc_encoder_deps="nvenc"
2261 h264_omx_encoder_deps="omx"
2262 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2263 h264_qsv_encoder_select="qsvenc"
2264 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2265 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2266 hevc_nvenc_encoder_deps="nvenc"
2267 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2268 hevc_qsv_encoder_select="hevcparse qsvenc"
2269 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2270 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2271 mjpeg_qsv_encoder_deps="libmfx"
2272 mjpeg_qsv_encoder_select="qsvenc"
2273 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2274 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2275 mpeg2_mmal_decoder_deps="mmal"
2276 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2277 mpeg2_qsv_encoder_select="qsvenc"
2278 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2279 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2280 mpeg4_omx_encoder_deps="omx"
2281 vc1_mmal_decoder_deps="mmal"
2282 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2283 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2284 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2285 vp8_vaapi_encoder_select="vaapi_encode"
2286 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2287 vp9_vaapi_encoder_select="vaapi_encode"
2288
2289 nvenc_h264_encoder_select="h264_nvenc_encoder"
2290 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2291
2292 # parsers
2293 aac_parser_select="adts_header"
2294 h264_parser_select="golomb h264dsp h264parse"
2295 hevc_parser_select="hevcparse"
2296 mpegaudio_parser_select="mpegaudioheader"
2297 mpegvideo_parser_select="mpegvideo"
2298 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2299 vc1_parser_select="vc1dsp"
2300
2301 # bitstream_filters
2302 aac_adtstoasc_bsf_select="adts_header"
2303 h264_metadata_bsf_select="cbs_h264"
2304 h264_redundant_pps_bsf_select="cbs_h264"
2305 hevc_metadata_bsf_select="cbs_h265"
2306 mjpeg2jpeg_bsf_select="jpegtables"
2307 mpeg2_metadata_bsf_select="cbs_mpeg2"
2308 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2309
2310 # external libraries
2311 avisynth_deps="LoadLibrary"
2312 avxsynth_deps="libdl"
2313 avisynth_demuxer_deps_any="avisynth avxsynth"
2314 avisynth_demuxer_select="riffdec"
2315 libdcadec_decoder_deps="libdcadec"
2316 libfaac_encoder_deps="libfaac"
2317 libfaac_encoder_select="audio_frame_queue"
2318 libfdk_aac_decoder_deps="libfdk_aac"
2319 libfdk_aac_encoder_deps="libfdk_aac"
2320 libfdk_aac_encoder_select="audio_frame_queue"
2321 libgsm_decoder_deps="libgsm"
2322 libgsm_encoder_deps="libgsm"
2323 libgsm_ms_decoder_deps="libgsm"
2324 libgsm_ms_encoder_deps="libgsm"
2325 libilbc_decoder_deps="libilbc"
2326 libilbc_encoder_deps="libilbc"
2327 libkvazaar_encoder_deps="libkvazaar"
2328 libmp3lame_encoder_deps="libmp3lame"
2329 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2330 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2331 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2332 libopencore_amrnb_encoder_select="audio_frame_queue"
2333 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2334 libopenh264_decoder_deps="libopenh264"
2335 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2336 libopenh264_encoder_deps="libopenh264"
2337 libopenjpeg_decoder_deps="libopenjpeg"
2338 libopenjpeg_encoder_deps="libopenjpeg"
2339 libopus_decoder_deps="libopus"
2340 libopus_encoder_deps="libopus"
2341 libopus_encoder_select="audio_frame_queue"
2342 libschroedinger_decoder_deps="libschroedinger"
2343 libschroedinger_encoder_deps="libschroedinger"
2344 libspeex_decoder_deps="libspeex"
2345 libspeex_encoder_deps="libspeex"
2346 libspeex_encoder_select="audio_frame_queue"
2347 libtheora_encoder_deps="libtheora"
2348 libtwolame_encoder_deps="libtwolame"
2349 libvo_aacenc_encoder_deps="libvo_aacenc"
2350 libvo_aacenc_encoder_select="audio_frame_queue"
2351 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2352 libvorbis_encoder_deps="libvorbis"
2353 libvorbis_encoder_select="audio_frame_queue"
2354 libvpx_vp8_decoder_deps="libvpx"
2355 libvpx_vp8_encoder_deps="libvpx"
2356 libvpx_vp9_decoder_deps="libvpx"
2357 libvpx_vp9_encoder_deps="libvpx"
2358 libwavpack_encoder_deps="libwavpack"
2359 libwavpack_encoder_select="audio_frame_queue"
2360 libwebp_encoder_deps="libwebp"
2361 libx262_encoder_deps="libx262"
2362 libx264_encoder_deps="libx264"
2363 libx265_encoder_deps="libx265"
2364 libxavs_encoder_deps="libxavs"
2365 libxvid_encoder_deps="libxvid mkstemp"
2366
2367 # demuxers / muxers
2368 ac3_demuxer_select="ac3_parser"
2369 asf_demuxer_select="riffdec"
2370 asf_muxer_select="riffenc"
2371 asf_stream_muxer_select="asf_muxer"
2372 avi_demuxer_select="iso_media riffdec"
2373 avi_muxer_select="riffenc"
2374 caf_demuxer_select="iso_media riffdec"
2375 dash_muxer_select="mp4_muxer"
2376 dirac_demuxer_select="dirac_parser"
2377 dv_demuxer_select="dvprofile"
2378 dv_muxer_select="dvprofile"
2379 dxa_demuxer_select="riffdec"
2380 eac3_demuxer_select="ac3_parser"
2381 f4v_muxer_select="mov_muxer"
2382 flac_demuxer_select="flac_parser"
2383 hds_muxer_select="flv_muxer"
2384 hls_muxer_select="mpegts_muxer"
2385 ipod_muxer_select="mov_muxer"
2386 ismv_muxer_select="mov_muxer"
2387 matroska_audio_muxer_select="matroska_muxer"
2388 matroska_demuxer_select="iso_media riffdec"
2389 matroska_demuxer_suggest="bzlib lzo zlib"
2390 matroska_muxer_select="iso_media riffenc"
2391 mmf_muxer_select="riffenc"
2392 mov_demuxer_select="iso_media riffdec"
2393 mov_demuxer_suggest="zlib"
2394 mov_muxer_select="iso_media riffenc rtpenc_chain"
2395 mp3_demuxer_select="mpegaudio_parser"
2396 mp3_muxer_select="mpegaudioheader"
2397 mp4_muxer_select="mov_muxer"
2398 mpegts_demuxer_select="iso_media"
2399 mpegts_muxer_select="adts_muxer latm_muxer"
2400 mpegtsraw_demuxer_select="mpegts_demuxer"
2401 mxf_d10_muxer_select="mxf_muxer"
2402 nut_muxer_select="riffenc"
2403 nuv_demuxer_select="riffdec"
2404 oga_muxer_select="ogg_muxer"
2405 ogg_demuxer_select="dirac_parse"
2406 opus_muxer_select="ogg_muxer"
2407 psp_muxer_select="mov_muxer"
2408 rtp_demuxer_select="sdp_demuxer"
2409 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2410 rtsp_demuxer_select="http_protocol rtpdec"
2411 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2412 sap_demuxer_select="sdp_demuxer"
2413 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2414 sdp_demuxer_select="rtpdec"
2415 smoothstreaming_muxer_select="ismv_muxer"
2416 spdif_demuxer_select="adts_header"
2417 spdif_muxer_select="adts_header"
2418 spx_muxer_select="ogg_muxer"
2419 swf_demuxer_suggest="zlib"
2420 tak_demuxer_select="tak_parser"
2421 tg2_muxer_select="mov_muxer"
2422 tgp_muxer_select="mov_muxer"
2423 w64_demuxer_select="wav_demuxer"
2424 wav_demuxer_select="riffdec"
2425 wav_muxer_select="riffenc"
2426 webm_muxer_select="iso_media riffenc"
2427 wtv_demuxer_select="mpegts_demuxer riffdec"
2428 xmv_demuxer_select="riffdec"
2429 xwma_demuxer_select="riffdec"
2430
2431 # indevs
2432 alsa_indev_deps="alsa"
2433 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2434 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2435 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2436 fbdev_indev_deps="linux_fb_h"
2437 jack_indev_deps="libjack"
2438 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2439 libcdio_indev_deps="libcdio"
2440 libdc1394_indev_deps="libdc1394"
2441 oss_indev_deps_any="sys_soundcard_h"
2442 pulse_indev_deps="libpulse"
2443 sndio_indev_deps="sndio"
2444 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2445 vfwcap_indev_deps="vfw32 vfwcap_defines"
2446 xcbgrab_indev_deps="libxcb libxcb_shape"
2447 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2448
2449 # protocols
2450 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2451 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2452 ffrtmpcrypt_protocol_select="tcp_protocol"
2453 ffrtmphttp_protocol_conflict="librtmp_protocol"
2454 ffrtmphttp_protocol_select="http_protocol"
2455 gopher_protocol_select="network"
2456 http_protocol_select="tcp_protocol"
2457 http_protocol_suggest="zlib"
2458 httpproxy_protocol_select="tcp_protocol"
2459 httpproxy_protocol_suggest="zlib"
2460 https_protocol_select="tls_protocol"
2461 https_protocol_suggest="zlib"
2462 icecast_protocol_select="http_protocol"
2463 librtmp_protocol_deps="librtmp"
2464 librtmpe_protocol_deps="librtmp"
2465 librtmps_protocol_deps="librtmp"
2466 librtmpt_protocol_deps="librtmp"
2467 librtmpte_protocol_deps="librtmp"
2468 mmsh_protocol_select="http_protocol"
2469 mmst_protocol_select="network"
2470 rtmp_protocol_conflict="librtmp_protocol"
2471 rtmp_protocol_select="tcp_protocol"
2472 rtmp_protocol_suggest="zlib"
2473 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2474 rtmpe_protocol_suggest="zlib"
2475 rtmps_protocol_conflict="librtmp_protocol"
2476 rtmps_protocol_select="tls_protocol"
2477 rtmps_protocol_suggest="zlib"
2478 rtmpt_protocol_select="ffrtmphttp_protocol"
2479 rtmpt_protocol_suggest="zlib"
2480 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2481 rtmpte_protocol_suggest="zlib"
2482 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2483 rtmpts_protocol_suggest="zlib"
2484 rtp_protocol_select="udp_protocol"
2485 sctp_protocol_deps="struct_sctp_event_subscribe"
2486 sctp_protocol_select="network"
2487 srtp_protocol_select="rtp_protocol srtp"
2488 tcp_protocol_select="network"
2489 tls_protocol_deps_any="gnutls openssl"
2490 tls_protocol_select="tcp_protocol"
2491 udp_protocol_select="network"
2492 unix_protocol_deps="sys_un_h"
2493 unix_protocol_select="network"
2494
2495 # filters
2496 asyncts_filter_deps="avresample"
2497 blackframe_filter_deps="gpl"
2498 boxblur_filter_deps="gpl"
2499 bs2b_filter_deps="libbs2b"
2500 cropdetect_filter_deps="gpl"
2501 deinterlace_qsv_filter_deps="libmfx"
2502 deinterlace_vaapi_filter_deps="vaapi"
2503 delogo_filter_deps="gpl"
2504 drawtext_filter_deps="libfreetype"
2505 drawtext_filter_suggest="libfontconfig"
2506 frei0r_filter_deps="frei0r libdl"
2507 frei0r_src_filter_deps="frei0r libdl"
2508 hdcd_filter_deps="libhdcd"
2509 hqdn3d_filter_deps="gpl"
2510 interlace_filter_deps="gpl"
2511 movie_filter_deps="avcodec avformat"
2512 ocv_filter_deps="libopencv"
2513 overlay_qsv_filter_deps="libmfx"
2514 overlay_qsv_filter_select="qsvvpp"
2515 resample_filter_deps="avresample"
2516 scale_filter_deps="swscale"
2517 scale_qsv_filter_deps="libmfx"
2518 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2519 vpp_qsv_filter_deps="libmfx"
2520 vpp_qsv_filter_select="qsvvpp"
2521
2522 # examples
2523 decode_audio_example_deps="avcodec avutil"
2524 decode_video_example_deps="avcodec avutil"
2525 encode_audio_example_deps="avcodec avutil"
2526 encode_video_example_deps="avcodec avutil"
2527 filter_audio_example_deps="avfilter avutil"
2528 metadata_example_deps="avformat avutil"
2529 output_example_deps="avcodec avformat avresample avutil swscale"
2530 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2531 transcode_aac_example_deps="avcodec avformat avresample"
2532
2533 # EXTRALIBS_LIST
2534 cpu_init_extralibs="pthreads_extralibs"
2535 cws2fws_extralibs="zlib_extralibs"
2536
2537 # libraries, in linking order
2538 avcodec_deps="avutil"
2539 avcodec_select="null_bsf"
2540 avdevice_deps="avformat avcodec avutil"
2541 avfilter_deps="avutil"
2542 avformat_deps="avcodec avutil"
2543 avformat_suggest="network"
2544 avresample_deps="avutil"
2545 swscale_deps="avutil"
2546
2547 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2548 avdevice_extralibs="libm_extralibs"
2549 avformat_extralibs="libm_extralibs"
2550 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2551 avresample_extralibs="libm_extralibs"
2552 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2553 swscale_extralibs="libm_extralibs"
2554
2555 # programs
2556 avconv_deps="avcodec avfilter avformat avresample swscale"
2557 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2558 fps_filter null_filter resample_filter scale_filter
2559 trim_filter"
2560 avconv_suggest="psapi shell32"
2561 avplay_deps="avcodec avfilter avformat avresample sdl"
2562 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2563 avplay_suggest="shell32"
2564 avprobe_deps="avcodec avformat"
2565 avprobe_suggest="shell32"
2566
2567 # documentation
2568 pod2man_deps="doc"
2569 texi2html_deps="doc"
2570
2571 # default parameters
2572
2573 logfile="avbuild/config.log"
2574
2575 # installation paths
2576 prefix_default="/usr/local"
2577 bindir_default='${prefix}/bin'
2578 datadir_default='${prefix}/share/avconv'
2579 docdir_default='${prefix}/share/doc/libav'
2580 incdir_default='${prefix}/include'
2581 libdir_default='${prefix}/lib'
2582 mandir_default='${prefix}/share/man'
2583 shlibdir_default="$libdir_default"
2584
2585 # toolchain
2586 ar_default="ar"
2587 cc_default="gcc"
2588 host_cc_default="gcc"
2589 x86asmexe_default="nasm"
2590 ln_s="ln -s -f"
2591 nm_default="nm -g"
2592 pkg_config_default=pkg-config
2593 ranlib="ranlib"
2594 strip="strip"
2595 version_script='--version-script'
2596
2597 # machine
2598 arch_default=$(uname -m)
2599 cpu="generic"
2600 intrinsics="none"
2601
2602 # OS
2603 target_os_default=$(tolower $(uname -s))
2604 host_os=$target_os_default
2605
2606 # configurable options
2607 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2608
2609 enable asm
2610 enable debug
2611 enable doc
2612 enable faan faandct faanidct
2613 enable optimizations
2614 enable safe_bitstream_reader
2615 enable static
2616 enable swscale_alpha
2617 enable valgrind_backtrace
2618
2619 # By default, enable only those hwaccels that have no external dependencies.
2620 enable d3d11va dxva2 vda vdpau
2621
2622 # internal components are enabled by default
2623 enable $EXTRALIBS_LIST
2624
2625 # Avoid external, non-system, libraries getting enabled by dependency resolution
2626 disable $EXTERNAL_LIBRARY_LIST
2627
2628 # build settings
2629 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2630 LIBPREF="lib"
2631 LIBSUF=".a"
2632 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2633 SLIBPREF="lib"
2634 SLIBSUF=".so"
2635 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2636 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2637 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2638 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2639 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2640 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2641 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2642
2643 asflags_filter=echo
2644 cflags_filter=echo
2645 ldflags_filter=echo
2646
2647 AS_C='-c'
2648 AS_O='-o $@'
2649 CC_C='-c'
2650 CC_E='-E -o $@'
2651 CC_O='-o $@'
2652 OBJCC_C='-c'
2653 OBJCC_E='-E -o $@'
2654 OBJCC_O='-o $@'
2655 X86ASM_O='-o $@'
2656 LD_O='-o $@'
2657 LD_LIB='-l%'
2658 LD_PATH='-L'
2659 HOSTCC_C='-c'
2660 HOSTCC_E='-E -o $@'
2661 HOSTCC_O='-o $@'
2662 HOSTLD_O='-o $@'
2663
2664 host_extralibs='-lm'
2665 host_cflags_filter=echo
2666 host_ldflags_filter=echo
2667
2668 target_path='$(CURDIR)'
2669
2670 # since the object filename is not given with the -MM flag, the compiler
2671 # is only able to print the basename, and we must add the path ourselves
2672 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2673 DEPFLAGS='-MM'
2674
2675 mkdir -p avbuild
2676
2677 # find source path
2678 if test -f configure; then
2679 source_path=.
2680 else
2681 source_path=$(cd $(dirname "$0"); pwd)
2682 echo "$source_path" | grep -q '[[:blank:]]' &&
2683 die "Out of tree builds are impossible with whitespace in source path."
2684 test -e "$source_path/config.h" &&
2685 die "Out of tree builds are impossible with config.h in source dir."
2686 fi
2687
2688 for v in "$@"; do
2689 r=${v#*=}
2690 l=${v%"$r"}
2691 r=$(sh_quote "$r")
2692 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2693 done
2694
2695 find_things(){
2696 thing=$1
2697 pattern=$2
2698 file=$source_path/$3
2699 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2700 }
2701
2702 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2703 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2704 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2705 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2706 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2707 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2708 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2709 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2710
2711 find_things_extern(){
2712 thing=$1
2713 pattern=$2
2714 file=$source_path/$3
2715 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2716 }
2717
2718 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2719 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2720
2721 AVCODEC_COMPONENTS_LIST="
2722 $BSF_LIST
2723 $DECODER_LIST
2724 $ENCODER_LIST
2725 $HWACCEL_LIST
2726 $PARSER_LIST
2727 "
2728
2729 AVDEVICE_COMPONENTS_LIST="
2730 $INDEV_LIST
2731 "
2732
2733 AVFILTER_COMPONENTS_LIST="
2734 $FILTER_LIST
2735 "
2736
2737 AVFORMAT_COMPONENTS_LIST="
2738 $DEMUXER_LIST
2739 $MUXER_LIST
2740 $PROTOCOL_LIST
2741 "
2742
2743 ALL_COMPONENTS="
2744 $AVCODEC_COMPONENTS_LIST
2745 $AVDEVICE_COMPONENTS_LIST
2746 $AVFILTER_COMPONENTS_LIST
2747 $AVFORMAT_COMPONENTS_LIST
2748 "
2749
2750 for n in $COMPONENT_LIST; do
2751 v=$(toupper ${n%s})_LIST
2752 eval enable \$$v
2753 eval ${n}_if_any="\$$v"
2754 done
2755
2756 enable $ARCH_EXT_LIST
2757
2758 die_unknown(){
2759 echo "Unknown option \"$1\"."
2760 echo "See $0 --help for available options."
2761 exit 1
2762 }
2763
2764 print_3_columns() {
2765 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2766 }
2767
2768 show_list() {
2769 suffix=_$1
2770 shift
2771 echo $* | sed s/$suffix//g | print_3_columns
2772 exit 0
2773 }
2774
2775 for opt do
2776 optval="${opt#*=}"
2777 case "$opt" in
2778 --extra-ldflags=*)
2779 add_ldflags $optval
2780 ;;
2781 --extra-ldexeflags=*)
2782 add_ldexeflags $optval
2783 ;;
2784 --extra-ldsoflags=*)
2785 add_ldsoflags $optval
2786 ;;
2787 --extra-libs=*)
2788 add_extralibs $optval
2789 ;;
2790 --disable-devices)
2791 disable $INDEV_LIST
2792 ;;
2793 --enable-debug=*)
2794 debuglevel="$optval"
2795 ;;
2796 --disable-programs)
2797 disable $PROGRAM_LIST
2798 ;;
2799 --disable-everything)
2800 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2801 ;;
2802 --disable-all)
2803 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2804 disable $LIBRARY_LIST $PROGRAM_LIST doc
2805 ;;
2806 --enable-*=*|--disable-*=*)
2807 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2808 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2809 eval list=\$$(toupper $thing)_LIST
2810 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2811 $action $(filter "$name" $list)
2812 ;;
2813 --enable-yasm|--disable-yasm)
2814 warn "The ${opt} option is only provided for compatibility and will be\n"\
2815 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2816 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2817 ;;
2818 --enable-?*|--disable-?*)
2819 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2820 if is_in $option $COMPONENT_LIST; then
2821 test $action = disable && action=unset
2822 eval $action \$$(toupper ${option%s})_LIST
2823 elif is_in $option $CMDLINE_SELECT; then
2824 $action $option
2825 else
2826 die_unknown $opt
2827 fi
2828 ;;
2829 --list-*)
2830 NAME="${opt#--list-}"
2831 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2832 NAME=${NAME%s}
2833 eval show_list $NAME \$$(toupper $NAME)_LIST
2834 ;;
2835 --help|-h) show_help
2836 ;;
2837 --quiet|-q) quiet=yes
2838 ;;
2839 *)
2840 optname="${opt%%=*}"
2841 optname="${optname#--}"
2842 optname=$(echo "$optname" | sed 's/-/_/g')
2843 if is_in $optname $CMDLINE_SET; then
2844 eval $optname='$optval'
2845 elif is_in $optname $CMDLINE_APPEND; then
2846 append $optname "$optval"
2847 else
2848 die_unknown $opt
2849 fi
2850 ;;
2851 esac
2852 done
2853
2854 for e in $env; do
2855 eval "export $e"
2856 done
2857
2858 disabled logging && logfile=/dev/null
2859
2860 # we need to build at least one lib type
2861 if ! enabled_any static shared; then
2862 cat <<EOF
2863 At least one library type must be built.
2864 Specify --enable-static to build the static libraries or --enable-shared to
2865 build the shared libraries as well. To only build the shared libraries specify
2866 --disable-static in addition to --enable-shared.
2867 EOF
2868 exit 1
2869 fi
2870
2871 # Die early if licensing-related configure options are incompatible.
2872 die_license_disabled() {
2873 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2874 }
2875
2876 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2877 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2878 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2879
2880 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2881
2882 enabled_all gnutls openssl &&
2883 die "GnuTLS and OpenSSL must not be enabled at the same time."
2884
2885 # Disable all the library-specific components if the library itself
2886 # is disabled, see AVCODEC_LIST and following _LIST variables.
2887
2888 disable_components(){
2889 disabled ${1} && disable $(
2890 eval components="\$$(toupper ${1})_COMPONENTS"
2891 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2892 )
2893 }
2894
2895 map 'disable_components $v' $LIBRARY_LIST
2896
2897 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2898 set >> $logfile
2899
2900 case "$toolchain" in
2901 *-asan)
2902 cc_default="${toolchain%-asan}"
2903 add_cflags -fsanitize=address
2904 add_ldflags -fsanitize=address
2905 ;;
2906 *-msan)
2907 cc_default="${toolchain%-msan}"
2908 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2909 add_ldflags -fsanitize=memory
2910 ;;
2911 *-tsan)
2912 cc_default="${toolchain%-tsan}"
2913 add_cflags -fsanitize=thread -fPIE
2914 add_ldflags -fsanitize=thread -pie
2915 case "$toolchain" in
2916 gcc-tsan)
2917 add_cflags -fPIC
2918 add_ldflags -fPIC
2919 ;;
2920 esac
2921 ;;
2922 *-usan)
2923 cc_default="${toolchain%-usan}"
2924 add_cflags -fsanitize=undefined
2925 add_ldflags -fsanitize=undefined
2926 case "$toolchain" in
2927 clang-usan)
2928 add_cflags -O1
2929 ;;
2930 esac
2931 ;;
2932 valgrind-*)
2933 target_exec_default="valgrind"
2934 case "$toolchain" in
2935 valgrind-massif)
2936 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2937 ;;
2938 valgrind-memcheck)
2939 target_exec_args="--track-origins=yes --leak-check=full"
2940 ;;
2941 esac
2942 ;;
2943 msvc)
2944 # Check whether the current MSVC version needs the C99 converter.
2945 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2946 # support enough of C99 to build libav. Default to the new
2947 # behaviour if the regexp was unable to match anything, since this
2948 # successfully parses the version number of existing supported
2949 # versions that require the converter (MSVC 2010 and 2012).
2950 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2951 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2952 cc_default="cl"
2953 else
2954 cc_default="c99wrap cl"
2955 fi
2956 ld_default="$source_path/compat/windows/mslink"
2957 nm_default="dumpbin -symbols"
2958 ar_default="lib"
2959 case "$arch" in
2960 aarch64|arm64)
2961 as_default="armasm64"
2962 ;;
2963 arm*)
2964 as_default="armasm"
2965 ;;
2966 esac
2967 target_os_default="win32"
2968 # Use a relative path for TMPDIR. This makes sure all the
2969 # ffconf temp files are written with a relative path, avoiding
2970 # issues with msys/win32 path conversion for MSVC parameters
2971 # such as -Fo<file> or -out:<file>.
2972 TMPDIR=.
2973 ;;
2974 icl)
2975 cc_default="icl"
2976 ld_default="xilink"
2977 nm_default="dumpbin -symbols"
2978 ar_default="xilib"
2979 target_os_default="win32"
2980 TMPDIR=.
2981 ;;
2982 gcov)
2983 add_cflags -fprofile-arcs -ftest-coverage
2984 add_ldflags -fprofile-arcs -ftest-coverage
2985 ;;
2986 llvm-cov)
2987 add_cflags -fprofile-arcs -ftest-coverage
2988 add_ldflags --coverage
2989 ;;
2990 hardened)
2991 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2992 add_cflags -fno-strict-overflow -fstack-protector-all
2993 add_ldflags -Wl,-z,relro -Wl,-z,now
2994 ;;
2995 ?*)
2996 die "Unknown toolchain $toolchain"
2997 ;;
2998 esac
2999
3000 test -n "$cross_prefix" && enable cross_compile
3001
3002 if enabled cross_compile; then
3003 test -n "$arch" && test -n "$target_os" ||
3004 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3005 fi
3006
3007 ar_default="${cross_prefix}${ar_default}"
3008 cc_default="${cross_prefix}${cc_default}"
3009 objcc_default="${cross_prefix}${objcc_default}"
3010 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3011 nm_default="${cross_prefix}${nm_default}"
3012 pkg_config_default="${cross_prefix}${pkg_config_default}"
3013 ranlib="${cross_prefix}${ranlib}"
3014 strip="${cross_prefix}${strip}"
3015
3016 sysinclude_default="${sysroot}/usr/include"
3017
3018 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3019 enabled cross_compile || host_cc_default=$cc
3020 set_default host_cc
3021
3022 if ! $pkg_config --version >/dev/null 2>&1; then
3023 warn "$pkg_config not found, library detection may fail."
3024 pkg_config=false
3025 fi
3026
3027 exesuf() {
3028 case $1 in
3029 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3030 esac
3031 }
3032
3033 EXESUF=$(exesuf $target_os)
3034 HOSTEXESUF=$(exesuf $host_os)
3035
3036 # set temporary file name
3037 : ${TMPDIR:=$TEMPDIR}
3038 : ${TMPDIR:=$TMP}
3039 : ${TMPDIR:=/tmp}
3040
3041 if ! check_cmd mktemp -u XXXXXX; then
3042 # simple replacement for missing mktemp
3043 # NOT SAFE FOR GENERAL USE
3044 mktemp(){
3045 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3046 echo "$tmpname"
3047 mkdir "$tmpname"
3048 }
3049 fi
3050
3051 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3052 die "Unable to create temporary directory in $TMPDIR."
3053
3054 tmpfile(){
3055 tmp="${AVTMPDIR}/test"$2
3056 (set -C; exec > $tmp) 2> /dev/null ||
3057 die "Unable to create temporary file in $AVTMPDIR."
3058 eval $1=$tmp
3059 }
3060
3061 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3062 trap 'exit 2' INT
3063
3064 tmpfile TMPASM .asm
3065 tmpfile TMPC .c
3066 tmpfile TMPE $EXESUF
3067 tmpfile TMPH .h
3068 tmpfile TMPO .o
3069 tmpfile TMPS .S
3070 tmpfile TMPSH .sh
3071 tmpfile TMPV .ver
3072
3073 unset -f mktemp
3074
3075 chmod +x $TMPE
3076
3077 # make sure we can execute files in $TMPDIR
3078 cat > $TMPSH 2>> $logfile <<EOF
3079 #! /bin/sh
3080 EOF
3081 chmod +x $TMPSH >> $logfile 2>&1
3082 if ! $TMPSH >> $logfile 2>&1; then
3083 cat <<EOF
3084 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3085 variable to another directory and make sure that it is not mounted noexec.
3086 EOF
3087 die "Sanity test failed."
3088 fi
3089
3090 armasm_flags(){
3091 for flag; do
3092 case $flag in
3093 # Filter out MSVC cl.exe options from cflags that shouldn't
3094 # be passed to gas-preprocessor
3095 -M[TD]*) ;;
3096 *) echo $flag ;;
3097 esac
3098 done
3099 }
3100
3101 cparser_flags(){
3102 for flag; do
3103 case $flag in
3104 -Wno-switch) echo -Wno-switch-enum ;;
3105 -Wno-format-zero-length) ;;
3106 -Wdisabled-optimization) ;;
3107 -Wno-pointer-sign) echo -Wno-other ;;
3108 *) echo $flag ;;
3109 esac
3110 done
3111 }
3112
3113 msvc_common_flags(){
3114 for flag; do
3115 case $flag in
3116 # In addition to specifying certain flags under the compiler
3117 # specific filters, they must be specified here as well or else the
3118 # generic catch all at the bottom will print the original flag.
3119 -Wall) ;;
3120 -Wextra) ;;
3121 -std=c99) ;;
3122 # Common flags
3123 -fomit-frame-pointer) ;;
3124 -g) echo -Z7 ;;
3125 -fno-math-errno) ;;
3126 -fno-common) ;;
3127 -fno-signed-zeros) ;;
3128 -fPIC) ;;
3129 -mthumb) ;;
3130 -march=*) ;;
3131 -lz) echo zlib.lib ;;
3132 -lx264) echo libx264.lib ;;
3133 -l*) echo ${flag#-l}.lib ;;
3134 -L*) echo -libpath:${flag#-L} ;;
3135 *) echo $flag ;;
3136 esac
3137 done
3138 }
3139
3140 msvc_flags(){
3141 msvc_common_flags "$@"
3142 for flag; do
3143 case $flag in
3144 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3145 -wd4554 ;;
3146 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3147 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3148 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3149 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3150 esac
3151 done
3152 }
3153
3154 icl_flags(){
3155 msvc_common_flags "$@"
3156 for flag; do
3157 case $flag in
3158 # Despite what Intel's documentation says -Wall, which is supported
3159 # on Windows, does enable remarks so disable them here.
3160 -Wall) echo $flag -Qdiag-disable:remark ;;
3161 -std=c99) echo -Qstd=c99 ;;
3162 esac
3163 done
3164 }
3165
3166 pgi_flags(){
3167 for flag; do
3168 case $flag in
3169 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3170 -fomit-frame-pointer) echo -Mnoframe ;;
3171 -g) echo -gopt ;;
3172 *) echo $flag ;;
3173 esac
3174 done
3175 }
3176
3177 suncc_flags(){
3178 for flag; do
3179 case $flag in
3180 -march=*|-mcpu=*)
3181 case "${flag#*=}" in
3182 native) echo -xtarget=native ;;
3183 v9|niagara) echo -xarch=sparc ;;
3184 ultrasparc) echo -xarch=sparcvis ;;
3185 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3186 i586|pentium) echo -xchip=pentium ;;
3187 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3188 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3189 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3190 pentium4*) echo -xtarget=pentium4 ;;
3191 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3192 *-sse3) echo -xarch=sse3 ;;
3193 core2) echo -xarch=ssse3 -xchip=core2 ;;
3194 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3195 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3196 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3197 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3198 k8|opteron|athlon64|athlon-fx)
3199 echo -xarch=sse2a ;;
3200 athlon*) echo -xarch=pentium_proa ;;
3201 esac
3202 ;;
3203 -std=c99) echo -xc99 ;;
3204 -fomit-frame-pointer) echo -xregs=frameptr ;;
3205 -fPIC) echo -KPIC -xcode=pic32 ;;
3206 -W*,*) echo $flag ;;
3207 -f*-*|-W*|-mimpure-text) ;;
3208 -shared) echo -G ;;
3209 *) echo $flag ;;
3210 esac
3211 done
3212 }
3213
3214 tms470_flags(){
3215 for flag; do
3216 case $flag in
3217 -march=*|-mcpu=*)
3218 case "${flag#*=}" in
3219 armv7-a|cortex-a*) echo -mv=7a8 ;;
3220 armv7-r|cortex-r*) echo -mv=7r4 ;;
3221 armv7-m|cortex-m*) echo -mv=7m3 ;;
3222 armv6*|arm11*) echo -mv=6 ;;
3223 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3224 echo -mv=5e ;;
3225 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3226 esac
3227 ;;
3228 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3229 -mfpu=vfp) echo --float_support=vfpv2 ;;
3230 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3231 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3232 -msoft-float) echo --float_support=vfplib ;;
3233 -O[0-3]|-mf=*) echo $flag ;;
3234 -g) echo -g -mn ;;
3235 -pds=*) echo $flag ;;
3236 -D*|-I*) echo $flag ;;
3237 --gcc|--abi=*) echo $flag ;;
3238 -me) echo $flag ;;
3239 esac
3240 done
3241 }
3242
3243 probe_cc(){
3244 pfx=$1
3245 _cc=$2
3246
3247 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3248 unset _ld_o _ldflags _ld_lib _ld_path
3249 unset _depflags _DEPCMD _DEPFLAGS
3250 _flags_filter=echo
3251
3252 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3253 _type=llvm_gcc
3254 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3255 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3256 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3257 _cflags_speed='-O3'
3258 _cflags_size='-Os'
3259 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3260 _type=gcc
3261 gcc_version=$($_cc --version | head -n1)
3262 gcc_basever=$($_cc -dumpversion)
3263 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3264 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3265 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3266 if ! $_cc -dumpversion | grep -q '^2\.'; then
3267 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3268 fi
3269 _cflags_speed='-O3'
3270 _cflags_size='-Os'
3271 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3272 _type=icc
3273 _ident=$($_cc --version | head -n1)
3274 _depflags='-MMD'
3275 _cflags_speed='-O3'
3276 _cflags_size='-Os'
3277 _cflags_noopt='-O1'
3278 elif $_cc -v 2>&1 | grep -q xlc; then
3279 _type=xlc
3280 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3281 _cflags_speed='-O5'
3282 _cflags_size='-O5 -qcompact'
3283 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3284 test -d "$sysroot" || die "No valid sysroot specified."
3285 _type=armcc
3286 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3287 armcc_conf="$PWD/armcc.conf"
3288 $_cc --arm_linux_configure \
3289 --arm_linux_config_file="$armcc_conf" \
3290 --configure_sysroot="$sysroot" \
3291 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3292 die "Error creating armcc configuration file."
3293 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3294 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3295 as_default="${cross_prefix}gcc"
3296 _depflags='-MMD'
3297 _cflags_speed='-O3'
3298 _cflags_size='-Os'
3299 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3300 _type=tms470
3301 _ident=$($_cc -version | head -n1 | tr -s ' ')
3302 _flags='--gcc --abi=eabi -me'
3303 _cc_e='-ppl -fe=$@'
3304 _cc_o='-fe=$@'
3305 _depflags='-ppa -ppd=$(@:.o=.d)'
3306 _cflags_speed='-O3 -mf=5'
3307 _cflags_size='-O3 -mf=2'
3308 _flags_filter=tms470_flags
3309 elif $_cc -v 2>&1 | grep -q clang; then
3310 _type=clang
3311 _ident=$($_cc --version 2>/dev/null | head -n1)
3312 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3313 _cflags_speed='-O3'
3314 _cflags_size='-Os'
3315 elif $_cc -V 2>&1 | grep -q Sun; then
3316 _type=suncc
3317 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3318 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3319 _DEPFLAGS='-xM1 -xc99'
3320 _ldflags='-std=c99'
3321 _cflags_speed='-O5'
3322 _cflags_size='-O5 -xspace'
3323 _flags_filter=suncc_flags
3324 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3325 _type=pathscale
3326 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3327 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3328 _cflags_speed='-O2'
3329 _cflags_size='-Os'
3330 _flags_filter='filter_out -Wdisabled-optimization'
3331 elif $_cc -v 2>&1 | grep -q Open64; then
3332 _type=open64
3333 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3334 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3335 _cflags_speed='-O2'
3336 _cflags_size='-Os'
3337 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3338 elif $_cc -V 2>&1 | grep -q Portland; then
3339 _type=pgi
3340 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3341 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3342 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3343 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3344 _cflags_noopt="-O1"
3345 _flags_filter=pgi_flags
3346 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3347 _type=armasm
3348 _ident=$($_cc | head -n1)
3349 # 4509: "This form of conditional instruction is deprecated"
3350 _flags="-nologo -ignore 4509"
3351 _flags_filter=armasm_flags
3352 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3353 _type=msvc
3354 _ident=$($_cc 2>&1 | head -n1)
3355 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3356 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3357 _cflags_speed="-O2"
3358 _cflags_size="-O1"
3359 _cflags_noopt="-O1"
3360 if $_cc -nologo- 2>&1 | grep -q Linker; then
3361 _ld_o='-out:$@'
3362 else
3363 _ld_o='-Fe$@'
3364 fi
3365 _cc_o='-Fo$@'
3366 _cc_e='-P -Fi$@'
3367 _flags_filter=msvc_flags
3368 _ld_lib='lib%.a'
3369 _ld_path='-libpath:'
3370 _flags='-nologo'
3371 elif $_cc 2>&1 | grep -q Intel; then
3372 _type=icl
3373 _ident=$($_cc 2>&1 | head -n1)
3374 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3375 # Not only is O3 broken on 13.x+ but it is slower on all previous
3376 # versions (tested) as well.
3377 _cflags_speed="-O2"
3378 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3379 if $_cc 2>&1 | grep -q Linker; then
3380 _ld_o='-out:$@'
3381 else
3382 _ld_o='-Fe$@'
3383 fi
3384 _cc_o='-Fo$@'
3385 _cc_e='-P'
3386 _flags_filter=icl_flags
3387 _ld_lib='lib%.a'
3388 _ld_path='-libpath:'
3389 # -Qdiag-error to make icl error when seeing certain unknown arguments
3390 _flags='-nologo -Qdiag-error:4044,10157'
3391 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3392 # with MSVC which enables it by default.
3393 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3394 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3395 # lld can emulate multiple different linkers; in ms link.exe mode,
3396 # the -? parameter gives the help output which contains an identifyable
3397 # string, while it gives an error in other modes.
3398 _type=lld-link
3399 # The link.exe mode doesn't have a switch for getting the version,
3400 # but we can force it back to gnu mode and get the version from there.
3401 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3402 _ld_o='-out:$@'
3403 _flags_filter=msvc_flags
3404 _ld_lib='lib%.a'
3405 _ld_path='-libpath:'
3406 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3407 _type=cparser
3408 _ident=$($_cc --version | head -n1)
3409 _depflags='-MMD'
3410 _cflags_speed='-O4'
3411 _cflags_size='-O2'
3412 _flags_filter=cparser_flags
3413 fi
3414
3415 eval ${pfx}_type=\$_type
3416 eval ${pfx}_ident=\$_ident
3417 }
3418
3419 set_ccvars(){
3420 eval ${1}_C=\${_cc_c-\${${1}_C}}
3421 eval ${1}_E=\${_cc_e-\${${1}_E}}
3422 eval ${1}_O=\${_cc_o-\${${1}_O}}
3423
3424 if [ -n "$_depflags" ]; then
3425 eval ${1}_DEPFLAGS=\$_depflags
3426 else
3427 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3428 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3429 eval DEP${1}FLAGS=\$_flags
3430 fi
3431 }
3432
3433 probe_cc cc "$cc"
3434 cflags_filter=$_flags_filter
3435 cflags_speed=$_cflags_speed
3436 cflags_size=$_cflags_size
3437 cflags_noopt=$_cflags_noopt
3438 add_cflags $_flags $_cflags
3439 cc_ldflags=$_ldflags
3440 set_ccvars CC
3441
3442 probe_cc hostcc "$host_cc"
3443 host_cflags_filter=$_flags_filter
3444 host_cflags_speed=$_cflags_speed
3445 add_host_cflags $_flags $_cflags
3446 set_ccvars HOSTCC
3447
3448 test -n "$cc_type" && enable $cc_type ||
3449 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3450
3451 : ${as_default:=$cc}
3452 : ${objcc_default:=$cc}
3453 : ${dep_cc_default:=$cc}
3454 : ${ld_default:=$cc}
3455 : ${host_ld_default:=$host_cc}
3456 set_default ar as objcc dep_cc ld host_ld
3457
3458 probe_cc as "$as"
3459 asflags_filter=$_flags_filter
3460 add_asflags $_flags $_cflags
3461 set_ccvars AS
3462
3463 probe_cc objcc "$objcc"
3464 objcflags_filter=$_flags_filter
3465 add_objcflags $_flags $_cflags
3466 set_ccvars OBJC
3467
3468 probe_cc ld "$ld"
3469 ldflags_filter=$_flags_filter
3470 add_ldflags $_flags $_ldflags
3471 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3472 LD_O=${_ld_o-$LD_O}
3473 LD_LIB=${_ld_lib-$LD_LIB}
3474 LD_PATH=${_ld_path-$LD_PATH}
3475
3476 probe_cc hostld "$host_ld"
3477 host_ldflags_filter=$_flags_filter
3478 add_host_ldflags $_flags $_ldflags
3479 HOSTLD_O=${_ld_o-$HOSTLD_O}
3480
3481 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3482 probe_cc depcc "$dep_cc"
3483 CCDEP=${_DEPCMD:-$DEPCMD}
3484 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3485 DEPCCFLAGS=$_flags
3486 fi
3487
3488 if $ar 2>&1 | grep -q Microsoft; then
3489 arflags="-nologo"
3490 ar_o='-out:$@'
3491 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3492 arflags="rq"
3493 ar_o='$@'
3494 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3495 arflags='-Xany -r -c'
3496 ar_o='$@'
3497 else
3498 arflags="rc"
3499 ar_o='$@'
3500 fi
3501
3502 add_cflags $extra_cflags
3503 add_objcflags $extra_objcflags
3504 add_asflags $extra_cflags
3505
3506 if test -n "$sysroot"; then
3507 case "$cc_type" in
3508 gcc|llvm_gcc|clang)
3509 add_cppflags --sysroot="$sysroot"
3510 add_ldflags --sysroot="$sysroot"
3511 ;;
3512 tms470)
3513 add_cppflags -I"$sysinclude"
3514 add_ldflags --sysroot="$sysroot"
3515 ;;
3516 esac
3517 fi
3518
3519 if test "$cpu" = host; then
3520 enabled cross_compile &&
3521 die "--cpu=host makes no sense when cross-compiling."
3522
3523 case "$cc_type" in
3524 gcc|llvm_gcc)
3525 check_native(){
3526 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3527 sed -n "/cc1.*$1=/{
3528 s/.*$1=\\([^ ]*\\).*/\\1/
3529 p
3530 q
3531 }" $TMPE
3532 }
3533 cpu=$(check_native -march || check_native -mcpu)
3534 ;;
3535 esac
3536
3537 test "${cpu:-host}" = host &&
3538 die "--cpu=host not supported with compiler $cc"
3539 fi
3540
3541 # Deal with common $arch aliases
3542 case "$arch" in
3543 aarch64|arm64)
3544 arch="aarch64"
3545 ;;
3546 arm*)
3547 arch="arm"
3548 ;;
3549 mips*|IP*)
3550 case "$arch" in
3551 *el)
3552 add_cppflags -EL
3553 add_ldflags -EL
3554 ;;
3555 *eb)
3556 add_cppflags -EB
3557 add_ldflags -EB
3558 ;;
3559 esac
3560 arch="mips"
3561 ;;
3562 parisc*|hppa*)
3563 arch="parisc"
3564 ;;
3565 "Power Macintosh"|ppc*|powerpc*)
3566 arch="ppc"
3567 ;;
3568 s390|s390x)
3569 arch="s390"
3570 ;;
3571 sh4|sh)
3572 arch="sh4"
3573 ;;
3574 sun4u|sparc*)
3575 arch="sparc"
3576 ;;
3577 tilegx|tile-gx)
3578 arch="tilegx"
3579 ;;
3580 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3581 arch="x86"
3582 ;;
3583 esac
3584
3585 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3586 enable $arch
3587
3588 # Add processor-specific flags
3589 if enabled aarch64; then
3590
3591 case $cpu in
3592 armv*)
3593 cpuflags="-march=$cpu"
3594 ;;
3595 *)
3596 cpuflags="-mcpu=$cpu"
3597 ;;
3598 esac
3599
3600 elif enabled alpha; then
3601
3602 cpuflags="-mcpu=$cpu"
3603
3604 elif enabled arm; then
3605
3606 check_arm_arch() {
3607 check_cpp_condition stddef.h \
3608 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3609 $cpuflags
3610 }
3611
3612 probe_arm_arch() {
3613 if check_arm_arch 4; then echo armv4
3614 elif check_arm_arch 4T; then echo armv4t
3615 elif check_arm_arch 5; then echo armv5
3616 elif check_arm_arch 5E; then echo armv5e
3617 elif check_arm_arch 5T; then echo armv5t
3618 elif check_arm_arch 5TE; then echo armv5te
3619 elif check_arm_arch 5TEJ; then echo armv5te
3620 elif check_arm_arch 6; then echo armv6
3621 elif check_arm_arch 6J; then echo armv6j
3622 elif check_arm_arch 6K; then echo armv6k
3623 elif check_arm_arch 6Z; then echo armv6z
3624 elif check_arm_arch 6ZK; then echo armv6zk
3625 elif check_arm_arch 6T2; then echo armv6t2
3626 elif check_arm_arch 7; then echo armv7
3627 elif check_arm_arch 7A 7_A; then echo armv7-a
3628 elif check_arm_arch 7S; then echo armv7-a
3629 elif check_arm_arch 7R 7_R; then echo armv7-r
3630 elif check_arm_arch 7M 7_M; then echo armv7-m
3631 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3632 elif check_arm_arch 8A 8_A; then echo armv8-a
3633 fi
3634 }
3635
3636 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3637
3638 case $cpu in
3639 armv*)
3640 cpuflags="-march=$cpu"
3641 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3642 ;;
3643 *)
3644 cpuflags="-mcpu=$cpu"
3645 case $cpu in
3646 cortex-a*) subarch=armv7a ;;
3647 cortex-r*) subarch=armv7r ;;
3648 cortex-m*) enable thumb; subarch=armv7m ;;
3649 arm11*) subarch=armv6 ;;
3650 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3651 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3652 *) subarch=$(probe_arm_arch) ;;
3653 esac
3654 ;;
3655 esac
3656
3657 case "$subarch" in
3658 armv5t*) enable fast_clz ;;
3659 armv[6-8]*) enable fast_clz fast_unaligned ;;
3660 esac
3661
3662 elif enabled avr32; then
3663
3664 case $cpu in
3665 ap7[02]0[0-2])
3666 subarch="avr32_ap"
3667 cpuflags="-mpart=$cpu"
3668 ;;
3669 ap)
3670 subarch="avr32_ap"
3671 cpuflags="-march=$cpu"
3672 ;;
3673 uc3[ab]*)
3674 subarch="avr32_uc"
3675 cpuflags="-mcpu=$cpu"
3676 ;;
3677 uc)
3678 subarch="avr32_uc"
3679 cpuflags="-march=$cpu"
3680 ;;
3681 esac
3682
3683 elif enabled bfin; then
3684
3685 cpuflags="-mcpu=$cpu"
3686
3687 elif enabled mips; then
3688
3689 cpuflags="-march=$cpu"
3690
3691 elif enabled ppc; then
3692
3693 disable ldbrx
3694
3695 case $(tolower $cpu) in
3696 601|ppc601|powerpc601)
3697 cpuflags="-mcpu=601"
3698 disable altivec
3699 ;;
3700 603*|ppc603*|powerpc603*)
3701 cpuflags="-mcpu=603"
3702 disable altivec
3703 ;;
3704 604*|ppc604*|powerpc604*)
3705 cpuflags="-mcpu=604"
3706 disable altivec
3707 ;;
3708 g3|75*|ppc75*|powerpc75*)
3709 cpuflags="-mcpu=750"
3710 disable altivec
3711 ;;
3712 g4|745*|ppc745*|powerpc745*)
3713 cpuflags="-mcpu=7450"
3714 disable vsx
3715 ;;
3716 74*|ppc74*|powerpc74*)
3717 cpuflags="-mcpu=7400"
3718 disable vsx
3719 ;;
3720 g5|970|ppc970|powerpc970)
3721 cpuflags="-mcpu=970"
3722 disable vsx
3723 ;;
3724 power[3-6]*)
3725 cpuflags="-mcpu=$cpu"
3726 disable vsx
3727 ;;
3728 power[7-8]*)
3729 cpuflags="-mcpu=$cpu"
3730 enable ldbrx
3731 ;;
3732 cell)
3733 cpuflags="-mcpu=cell"
3734 enable ldbrx
3735 disable vsx
3736 ;;
3737 e500mc)
3738 cpuflags="-mcpu=e500mc"
3739 disable altivec
3740 ;;
3741 e500v2)
3742 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3743 disable altivec
3744 disable dcbzl
3745 ;;
3746 e500)
3747 cpuflags="-mcpu=8540 -mhard-float"
3748 disable altivec
3749 disable dcbzl
3750 ;;
3751 esac
3752
3753 elif enabled sparc; then
3754
3755 case $cpu in
3756 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3757 cpuflags="-mcpu=$cpu"
3758 ;;
3759 ultrasparc*|niagara[234])
3760 cpuflags="-mcpu=$cpu"
3761 ;;
3762 esac
3763
3764 elif enabled x86; then
3765
3766 case $cpu in
3767 i[345]86|pentium)
3768 cpuflags="-march=$cpu"
3769 disable i686
3770 disable mmx
3771 ;;
3772 # targets that do NOT support nopl and conditional mov (cmov)
3773 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3774 cpuflags="-march=$cpu"
3775 disable i686
3776 ;;
3777 # targets that do support nopl and conditional mov (cmov)
3778 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3779 cpuflags="-march=$cpu"
3780 enable i686
3781 enable fast_cmov
3782 ;;
3783 # targets that do support conditional mov but on which it's slow
3784 pentium4|pentium4m|prescott|nocona)
3785 cpuflags="-march=$cpu"
3786 enable i686
3787 disable fast_cmov
3788 ;;
3789 esac
3790
3791 fi
3792
3793 if [ "$cpu" != generic ]; then
3794 add_cflags $cpuflags
3795 add_asflags $cpuflags
3796 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3797 fi
3798
3799 # compiler sanity check
3800 check_exec <<EOF
3801 int main(void){ return 0; }
3802 EOF
3803 if test "$?" != 0; then
3804 echo "$cc is unable to create an executable file."
3805 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3806 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3807 echo "Only do this if you know what cross compiling means."
3808 fi
3809 die "C compiler test failed."
3810 fi
3811
3812 add_cppflags -D_ISOC99_SOURCE
3813
3814 # some compilers silently accept -std=c11, so we also need to check that the
3815 # version macro is defined properly
3816 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3817 add_cflags -std=c11 ||
3818 check_cflags -std=c99
3819
3820 check_cppflags -D_FILE_OFFSET_BITS=64
3821 check_cppflags -D_LARGEFILE_SOURCE
3822
3823 add_host_cppflags -D_ISOC99_SOURCE
3824 check_host_cflags -std=c99
3825 check_host_cflags -Wall
3826 check_host_cflags $host_cflags_speed
3827
3828 check_64bit(){
3829 arch32=$1
3830 arch64=$2
3831 expr=$3
3832 check_code cc "" "int test[2*($expr) - 1]" &&
3833 subarch=$arch64 || subarch=$arch32
3834 }
3835
3836 case "$arch" in
3837 aarch64|alpha|ia64)
3838 spic=$shared
3839 ;;
3840 mips)
3841 check_64bit mips mips64 '_MIPS_SIM > 1'
3842 spic=$shared
3843 ;;
3844 parisc)
3845 check_64bit parisc parisc64 'sizeof(void *) > 4'
3846 spic=$shared
3847 ;;
3848 ppc)
3849 check_64bit ppc ppc64 'sizeof(void *) > 4'
3850 spic=$shared
3851 ;;
3852 s390)
3853 check_64bit s390 s390x 'sizeof(void *) > 4'
3854 spic=$shared
3855 ;;
3856 sparc)
3857 check_64bit sparc sparc64 'sizeof(void *) > 4'
3858 spic=$shared
3859 ;;
3860 x86)
3861 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3862 if test "$subarch" = "x86_64"; then
3863 spic=$shared
3864 fi
3865 ;;
3866 esac
3867
3868 enable $subarch
3869 enabled spic && enable_weak pic
3870
3871 enabled x86_64 && objformat=elf64 || objformat="elf32"
3872
3873 # OS specific
3874 case $target_os in
3875 aix)
3876 SHFLAGS=-shared
3877 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3878 enabled shared && add_ldflags -Wl,-brtl
3879 ;;
3880 android)
3881 disable symver
3882 enable section_data_rel_ro
3883 SLIB_INSTALL_NAME='$(SLIBNAME)'
3884 SLIB_INSTALL_LINKS=
3885 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3886 ;;
3887 haiku)
3888 prefix_default="/boot/common"
3889 network_extralibs="-lnetwork"
3890 host_extralibs=
3891 ;;
3892 sunos)
3893 SHFLAGS='-shared -Wl,-h,$$(@F)'
3894 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3895 network_extralibs="-lsocket -lnsl"
3896 # When using suncc to build, the Solaris linker will mark
3897 # an executable with each instruction set encountered by
3898 # the Solaris assembler. As our libraries contain their own
3899 # guards for processor-specific code, instead suppress
3900 # generation of the HWCAPS ELF section on Solaris x86 only.
3901 enabled_all suncc x86 &&
3902 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3903 add_ldflags -Wl,-M,mapfile
3904 nm_default='nm -P -g'
3905 version_script='-M'
3906 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3907 ;;
3908 netbsd)
3909 disable symver
3910 oss_indev_extralibs="-lossaudio"
3911 ;;
3912 openbsd|bitrig)
3913 disable symver
3914 SHFLAGS='-shared'
3915 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3916 SLIB_INSTALL_LINKS=
3917 oss_indev_extralibs="-lossaudio"
3918 ;;
3919 dragonfly)
3920 disable symver
3921 ;;
3922 freebsd)
3923 ;;
3924 bsd/os)
3925 add_extralibs -lpoll -lgnugetopt
3926 ;;
3927 darwin)
3928 enabled ppc && add_asflags -force_cpusubtype_ALL
3929 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3930 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3931 add_ldflags -Wl,-dynamic,-search_paths_first
3932 check_cflags -Werror=partial-availability
3933 SLIBSUF=".dylib"
3934 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3935 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3936 enabled x86_64 && objformat="macho64" || objformat="macho32"
3937 enabled_any pic shared ||
3938 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3939 check_header dispatch/dispatch.h &&
3940 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3941 if test -n "$sysroot"; then
3942 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3943 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3944 fi
3945 ;;
3946 msys*)
3947 die "Native MSYS builds are discouraged, please use the MINGW environment."
3948 ;;
3949 mingw32*|mingw64*)
3950 target_os=mingw32
3951 LIBTARGET=i386
3952 if enabled x86_64; then
3953 LIBTARGET="i386:x86-64"
3954 fi
3955 if enabled shared; then
3956 # Cannot build both shared and static libs when using dllexport.
3957 disable static
3958 fi
3959 check_ldflags -Wl,--nxcompat
3960 check_ldflags -Wl,--dynamicbase
3961 shlibdir_default="$bindir_default"
3962 SLIBPREF=""
3963 SLIBSUF=".dll"
3964 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3965 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3966 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3967 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3968 SLIB_INSTALL_LINKS=
3969 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3970 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3971 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3972 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3973 enabled x86_64 && objformat="win64" || objformat="win32"
3974 dlltool="${cross_prefix}dlltool"
3975 ranlib=:
3976 enable dos_paths
3977 ;;
3978 win32|win64)
3979 disable symver
3980 if enabled shared; then
3981 # Link to the import library instead of the normal static library
3982 # for shared libs.
3983 LD_LIB='%.lib'
3984 # Cannot build both shared and static libs with MSVC or icl.
3985 disable static
3986 fi
3987 shlibdir_default="$bindir_default"
3988 SLIBPREF=""
3989 SLIBSUF=".dll"
3990 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3991 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3992 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3993 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3994 SLIB_INSTALL_LINKS=
3995 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3996 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3997 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3998 enabled x86_64 && objformat="win64" || objformat="win32"
3999 ranlib=:
4000 enable dos_paths
4001 ;;
4002 cygwin*)
4003 target_os=cygwin
4004 shlibdir_default="$bindir_default"
4005 SLIBPREF="cyg"
4006 SLIBSUF=".dll"
4007 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4008 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4009 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4010 SLIB_INSTALL_LINKS=
4011 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4012 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4013 enabled x86_64 && objformat="win64" || objformat="win32"
4014 enable dos_paths
4015 ;;
4016 *-dos|freedos|opendos)
4017 network_extralibs="-lsocket"
4018 objformat="coff"
4019 enable dos_paths
4020 add_cppflags -U__STRICT_ANSI__
4021 ;;
4022 linux)
4023 enable section_data_rel_ro
4024 ;;
4025 irix*)
4026 target_os=irix
4027 ranlib="echo ignoring ranlib"
4028 ;;
4029 os/2*)
4030 ln_s="cp -f"
4031 objformat="aout"
4032 add_cppflags -D_GNU_SOURCE
4033 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4034 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4035 LIBSUF="_s.a"
4036 SLIBPREF=""
4037 SLIBSUF=".dll"
4038 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4039 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4040 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4041 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4042 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4043 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4044 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4045 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4046 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4047 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4048 enable dos_paths
4049 ;;
4050 gnu/kfreebsd)
4051 add_cppflags -D_BSD_SOURCE
4052 ;;
4053 gnu)
4054 ;;
4055 qnx)
4056 add_cppflags -D_QNX_SOURCE
4057 network_extralibs="-lsocket"
4058 ;;
4059 symbian)
4060 SLIBSUF=".dll"
4061 enable dos_paths
4062 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4063 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4064 add_ldflags -Wl,--target1-abs,--no-undefined \
4065 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4066 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4067 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4068 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4069 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4070 ;;
4071 minix)
4072 ;;
4073 none)
4074 ;;
4075 *)
4076 die "Unknown OS '$target_os'."
4077 ;;
4078 esac
4079
4080 # determine libc flavour
4081
4082 probe_libc(){
4083 pfx=$1
4084 pfx_no_=${pfx%_}
4085 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4086 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4087 eval ${pfx}libc_type=uclibc
4088 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4089 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4090 eval ${pfx}libc_type=glibc
4091 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4092 # MinGW headers can be installed on Cygwin, so check for newlib first.
4093 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4094 eval ${pfx}libc_type=newlib
4095 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4096 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4097 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4098 eval ${pfx}libc_type=mingw64
4099 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4100 eval test \$${pfx_no_}cc_type = "gcc" &&
4101 add_${pfx}cppflags -D__printf__=__gnu_printf__
4102 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4103 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4104 eval ${pfx}libc_type=mingw32
4105 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4106 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4107 die "ERROR: MinGW32 runtime version must be >= 3.15."
4108 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4109 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4110 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4111 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4112 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4113 eval test \$${pfx_no_}cc_type = "gcc" &&
4114 add_${pfx}cppflags -D__printf__=__gnu_printf__
4115 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4116 eval ${pfx}libc_type=msvcrt
4117 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4118 if [ "$pfx" = host_ ]; then
4119 add_host_cppflags -Dsnprintf=_snprintf
4120 else
4121 add_compat strtod.o strtod=avpriv_strtod
4122 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4123 _snprintf=avpriv_snprintf \
4124 vsnprintf=avpriv_vsnprintf
4125 fi
4126 fi
4127 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4128 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4129 # 0x601 by default unless something else is set by the user.
4130 # This can easily lead to us detecting functions only present
4131 # in such new versions and producing binaries requiring windows 7.0.
4132 # Therefore explicitly set the default to XP unless the user has
4133 # set something else on the command line.
4134 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4135 # family. For these cases, configure is free to use any functions
4136 # found in the SDK headers by default. (Alternatively, we could force
4137 # _WIN32_WINNT to 0x0602 in that case.)
4138 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4139 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4140 #ifdef WINAPI_FAMILY
4141 #include <winapifamily.h>
4142 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4143 #error not desktop
4144 #endif
4145 #endif
4146 EOF
4147 if [ "$pfx" = "" ]; then
4148 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4149 fi
4150 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4151 eval ${pfx}libc_type=klibc
4152 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4153 eval ${pfx}libc_type=bionic
4154 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4155 eval ${pfx}libc_type=solaris
4156 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4157 else
4158 eval ${pfx}libc_type=default
4159 add_${pfx}cppflags -D_DEFAULT_SOURCE
4160 fi
4161 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4162 }
4163
4164 probe_libc
4165 probe_libc host_
4166
4167 # hacks for compiler/libc/os combinations
4168
4169 case $libc_type in
4170 bionic)
4171 add_compat strtod.o strtod=avpriv_strtod
4172 ;;
4173 glibc)
4174 if enabled tms470; then
4175 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4176 add_cppflags -D__USER_LABEL_PREFIX__=
4177 add_cppflags -D__builtin_memset=memset
4178 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4179 add_cflags -pds=48 # incompatible redefinition of macro
4180 fi
4181 ;;
4182 esac
4183
4184 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4185 add_cppflags '-I\$(SRC_PATH)/compat/float'
4186
4187 esc(){
4188 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4189 }
4190
4191 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4192
4193 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4194
4195 set_default $PATHS_LIST
4196 set_default nm
4197
4198 disabled optimizations || check_cflags -fomit-frame-pointer
4199
4200 enable_weak_pic() {
4201 disabled pic && return
4202 enable pic
4203 add_cppflags -DPIC
4204 case "$target_os" in
4205 mingw*|cygwin*|win*)
4206 ;;
4207 *)
4208 add_cflags -fPIC
4209 add_asflags -fPIC
4210 ;;
4211 esac
4212 }
4213
4214 enabled pic && enable_weak_pic
4215
4216 check_cc <<EOF || die "Symbol mangling check failed."
4217 int ff_extern;
4218 EOF
4219 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4220 extern_prefix=${sym%%ff_extern*}
4221
4222 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4223
4224 _restrict=
4225 for restrict_keyword in restrict __restrict__ __restrict; do
4226 check_cc <<EOF && _restrict=$restrict_keyword && break
4227 void foo(char * $restrict_keyword p);
4228 EOF
4229 done
4230
4231 check_cc <<EOF && enable pragma_deprecated
4232 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4233 EOF
4234
4235 check_cc <<EOF || die "endian test failed"
4236 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4237 EOF
4238 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4239
4240 check_gas() {
4241 log "check_gas using '$as' as AS"
4242 # :vararg is used on aarch64, arm and ppc altivec
4243 check_as <<EOF || return 1
4244 .macro m n, y:vararg=0
4245 \n: .int \y
4246 .endm
4247 m x
4248 EOF
4249 # .altmacro is only used in arm asm
4250 ! enabled arm || check_as <<EOF || return 1
4251 .altmacro
4252 EOF
4253 enable gnu_as
4254 return 0
4255 }
4256
4257 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4258 nogas=:
4259 enabled_any arm aarch64 && nogas=die
4260 enabled_all ppc altivec && nogas=warn
4261 as_noop=-v
4262
4263 case $as_type in
4264 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4265 gcc) gaspp_as_type=gas ;;
4266 *) gaspp_as_type=$as_type ;;
4267 esac
4268
4269 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4270
4271 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4272 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4273
4274 if ! check_gas ; then
4275 as=${gas:=$as}
4276 check_gas || \
4277 $nogas "GNU assembler not found, install/update gas-preprocessor"
4278 fi
4279
4280 check_as <<EOF && enable as_func
4281 .func test
4282 .endfunc
4283 EOF
4284 fi
4285
4286 check_inline_asm inline_asm_labels '"1:\n"'
4287
4288 if enabled aarch64; then
4289 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4290 # internal assembler in clang 3.3 does not support this instruction
4291 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4292 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4293
4294 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4295
4296 elif enabled alpha; then
4297
4298 check_cflags -mieee
4299
4300 elif enabled arm; then
4301
4302 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4303 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4304 enabled thumb && check_cflags -mthumb || check_cflags -marm
4305
4306 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4307 enable vfp_args
4308 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4309 enable vfp_args
4310 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4311 case "${cross_prefix:-$cc}" in
4312 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4313 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4314 __asm__ (".eabi_attribute 28, 1");
4315 int main(void) { return 0; }
4316 EOF
4317 esac
4318 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4319 fi
4320
4321 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4322 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4323 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4324 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4325 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4326 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4327
4328 [ $target_os = linux ] || [ $target_os = android ] ||
4329 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4330 $ARCH_EXT_LIST_ARM
4331
4332 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4333
4334 check_as <<EOF && enable as_arch_directive
4335 .arch armv7-a
4336 EOF
4337 check_as <<EOF && enable as_fpu_directive
4338 .fpu neon
4339 EOF
4340
4341 # llvm's integrated assembler supports .object_arch from llvm 3.5
4342 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4343 check_as <<EOF && enable as_object_arch
4344 .object_arch armv4
4345 EOF
4346
4347 # MS armasm fails to assemble our PIC constructs
4348 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4349
4350 elif enabled mips; then
4351
4352 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4353
4354 # make sure that only an instruction set is enabled
4355 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4356
4357 if enabled mips64; then
4358 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4359 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4360 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4361 else
4362 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4363 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4364 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4365 fi
4366
4367 elif enabled parisc; then
4368