configure: Miscellaneous minor changes
[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 [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --disable-valgrind-backtrace do not print a backtrace under Valgrind
341 (only applies to --disable-optimizations builds)
342 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
343 in the name) of tests whose result is ignored
344
345 NOTE: Object files are built at the place where configure is launched.
346 EOF
347 exit 0
348 }
349
350 log(){
351 echo "$@" >> $logfile
352 }
353
354 log_file(){
355 log BEGIN $1
356 i=1
357 while read line; do
358 printf '%5s %s\n' "${i}" "${line}"
359 i=$(($i+1))
360 done < $1 >> $logfile
361 log END $1
362 }
363
364 echolog(){
365 log "$@"
366 echo "$@"
367 }
368
369 warn(){
370 log "WARNING: $*"
371 WARNINGS="${WARNINGS}WARNING: $*\n"
372 }
373
374 die(){
375 echolog "$@"
376 cat <<EOF
377
378 If you think configure made a mistake, make sure you are using the latest
379 version from Git. If the latest version fails, report the problem to the
380 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
381 EOF
382 if disabled logging; then
383 cat <<EOF
384 Rerun configure with logging enabled (do not use --disable-logging), and
385 include the log this produces with your report.
386 EOF
387 else
388 cat <<EOF
389 Include the log file "$logfile" produced by configure as this will help
390 solving the problem.
391 EOF
392 fi
393 exit 1
394 }
395
396 # Avoid locale weirdness, besides we really just want to translate ASCII.
397 toupper(){
398 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
399 }
400
401 tolower(){
402 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
403 }
404
405 c_escape(){
406 echo "$*" | sed 's/["\\]/\\\0/g'
407 }
408
409 sh_quote(){
410 v=$(echo "$1" | sed "s/'/'\\\\''/g")
411 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
412 echo "$v"
413 }
414
415 cleanws(){
416 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
417 }
418
419 filter(){
420 pat=$1
421 shift
422 for v; do
423 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
424 done
425 }
426
427 filter_out(){
428 pat=$1
429 shift
430 for v; do
431 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
432 done
433 }
434
435 map(){
436 m=$1
437 shift
438 for v; do eval $m; done
439 }
440
441 add_suffix(){
442 suffix=$1
443 shift
444 for v; do echo ${v}${suffix}; done
445 }
446
447 set_all(){
448 value=$1
449 shift
450 for var in $*; do
451 eval $var=$value
452 done
453 }
454
455 set_weak(){
456 value=$1
457 shift
458 for var; do
459 eval : \${$var:=$value}
460 done
461 }
462
463 sanitize_var_name(){
464 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
465 }
466
467 set_sanitized(){
468 var=$1
469 shift
470 eval $(sanitize_var_name "$var")='$*'
471 }
472
473 get_sanitized(){
474 eval echo \$$(sanitize_var_name "$1")
475 }
476
477 pushvar(){
478 for pvar in $*; do
479 eval level=\${${pvar}_level:=0}
480 eval ${pvar}_${level}="\$$pvar"
481 eval ${pvar}_level=$(($level+1))
482 done
483 }
484
485 popvar(){
486 for pvar in $*; do
487 eval level=\${${pvar}_level:-0}
488 test $level = 0 && continue
489 eval level=$(($level-1))
490 eval $pvar="\${${pvar}_${level}}"
491 eval ${pvar}_level=$level
492 eval unset ${pvar}_${level}
493 done
494 }
495
496 enable(){
497 set_all yes $*
498 }
499
500 disable(){
501 set_all no $*
502 }
503
504 enable_weak(){
505 set_weak yes $*
506 }
507
508 disable_weak(){
509 set_weak no $*
510 }
511
512 enable_sanitized(){
513 for var; do
514 enable $(sanitize_var_name $var)
515 done
516 }
517
518 disable_sanitized(){
519 for var; do
520 disable $(sanitize_var_name $var)
521 done
522 }
523
524 do_enable_deep(){
525 for var; do
526 enabled $var && continue
527 eval sel="\$${var}_select"
528 eval sgs="\$${var}_suggest"
529 pushvar var sgs
530 enable_deep $sel
531 popvar sgs
532 enable_deep_weak $sgs
533 popvar var
534 done
535 }
536
537 enable_deep(){
538 do_enable_deep $*
539 enable $*
540 }
541
542 enable_deep_weak(){
543 for var; do
544 disabled $var && continue
545 pushvar var
546 do_enable_deep $var
547 popvar var
548 enable_weak $var
549 done
550 }
551
552 enabled(){
553 test "${1#!}" = "$1" && op="=" || op="!="
554 eval test "x\$${1#!}" $op "xyes"
555 }
556
557 disabled(){
558 test "${1#!}" = "$1" && op="=" || op="!="
559 eval test "x\$${1#!}" $op "xno"
560 }
561
562 enabled_all(){
563 for opt; do
564 enabled $opt || return 1
565 done
566 }
567
568 disabled_all(){
569 for opt; do
570 disabled $opt || return 1
571 done
572 }
573
574 enabled_any(){
575 for opt; do
576 enabled $opt && return 0
577 done
578 }
579
580 disabled_any(){
581 for opt; do
582 disabled $opt && return 0
583 done
584 return 1
585 }
586
587 set_default(){
588 for opt; do
589 eval : \${$opt:=\$${opt}_default}
590 done
591 }
592
593 is_in(){
594 value=$1
595 shift
596 for var in $*; do
597 [ $var = $value ] && return 0
598 done
599 return 1
600 }
601
602 check_deps(){
603 for cfg; do
604 enabled ${cfg}_checking && die "Circular dependency for $cfg."
605 disabled ${cfg}_checking && continue
606 enable ${cfg}_checking
607
608 eval dep_all="\$${cfg}_deps"
609 eval dep_any="\$${cfg}_deps_any"
610 eval dep_con="\$${cfg}_conflict"
611 eval dep_sel="\$${cfg}_select"
612 eval dep_sgs="\$${cfg}_suggest"
613 eval dep_ifa="\$${cfg}_if"
614 eval dep_ifn="\$${cfg}_if_any"
615
616 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
617 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
618 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
619
620 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
621 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
622 enabled_all $dep_all || disable $cfg
623 enabled_any $dep_any || disable $cfg
624 disabled_all $dep_con || disable $cfg
625 disabled_any $dep_sel && disable $cfg
626
627 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
628
629 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
630 # filter out library deps, these do not belong in extralibs
631 is_in $dep $LIBRARY_LIST && continue
632 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
633 done
634
635 disable ${cfg}_checking
636 done
637 }
638
639 print_config(){
640 pfx=$1
641 files=$2
642 shift 2
643 map 'eval echo "$v \${$v:-no}"' "$@" |
644 awk "BEGIN { split(\"$files\", files) }
645 {
646 c = \"$pfx\" toupper(\$1);
647 v = \$2;
648 sub(/yes/, 1, v);
649 sub(/no/, 0, v);
650 for (f in files) {
651 file = files[f];
652 if (file ~ /\\.h\$/) {
653 printf(\"#define %s %d\\n\", c, v) >>file;
654 } else if (file ~ /\\.asm\$/) {
655 printf(\"%%define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.mak\$/) {
657 n = -v ? \"\" : \"!\";
658 printf(\"%s%s=yes\\n\", n, c) >>file;
659 }
660 }
661 }"
662 }
663
664 print_enabled(){
665 suf=$1
666 shift
667 for v; do
668 enabled $v && printf "%s\n" ${v%$suf}
669 done
670 }
671
672 append(){
673 var=$1
674 shift
675 eval "$var=\"\$$var $*\""
676 }
677
678 prepend(){
679 var=$1
680 shift
681 eval "$var=\"$* \$$var\""
682 }
683
684 unique(){
685 var=$1
686 uniq_list=""
687 for tok in $(eval echo \$$var); do
688 uniq_list="$(filter_out $tok $uniq_list) $tok"
689 done
690 eval "$var=\"${uniq_list}\""
691 }
692
693 resolve(){
694 var=$1
695 tmpvar=
696 for entry in $(eval echo \$$var); do
697 tmpvar="$tmpvar $(eval echo \$${entry})"
698 done
699 eval "$var=\"${tmpvar}\""
700 }
701
702 add_cppflags(){
703 append CPPFLAGS "$@"
704 }
705
706 add_cflags(){
707 append CFLAGS $($cflags_filter "$@")
708 }
709
710 add_cflags_headers(){
711 append CFLAGS_HEADERS $($cflags_filter "$@")
712 }
713
714 add_asflags(){
715 append ASFLAGS $($asflags_filter "$@")
716 }
717
718 add_objcflags(){
719 append OBJCFLAGS $($objcflags_filter "$@")
720 }
721
722 add_ldflags(){
723 append LDFLAGS $($ldflags_filter "$@")
724 }
725
726 add_ldexeflags(){
727 append LDEXEFLAGS $($ldflags_filter "$@")
728 }
729
730 add_ldsoflags(){
731 append LDSOFLAGS $($ldflags_filter "$@")
732 }
733
734 add_stripflags(){
735 append STRIPFLAGS "$@"
736 }
737
738 add_extralibs(){
739 prepend extralibs $($ldflags_filter "$@")
740 }
741
742 add_host_cppflags(){
743 append host_cppflags "$@"
744 }
745
746 add_host_cflags(){
747 append host_cflags $($host_cflags_filter "$@")
748 }
749
750 add_host_ldflags(){
751 append host_ldflags $($host_ldflags_filter "$@")
752 }
753
754 add_compat(){
755 append compat_objs $1
756 shift
757 map 'add_cppflags -D$v' "$@"
758 }
759
760 check_cmd(){
761 log "$@"
762 "$@" >> $logfile 2>&1
763 }
764
765 cc_o(){
766 eval printf '%s\\n' $CC_O
767 }
768
769 cc_e(){
770 eval printf '%s\\n' $CC_E
771 }
772
773 check_cc(){
774 log check_cc "$@"
775 cat > $TMPC
776 log_file $TMPC
777 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
778 }
779
780 check_objcc(){
781 log check_objcc "$@"
782 cat > $TMPC
783 log_file $TMPC
784 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
785 }
786
787 check_cpp(){
788 log check_cpp "$@"
789 cat > $TMPC
790 log_file $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
792 }
793
794 as_o(){
795 eval printf '%s\\n' $AS_O
796 }
797
798 check_as(){
799 log check_as "$@"
800 cat > $TMPS
801 log_file $TMPS
802 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
803 }
804
805 check_inline_asm(){
806 log check_inline_asm "$@"
807 name="$1"
808 code="$2"
809 shift 2
810 disable $name
811 check_cc "$@" <<EOF && enable $name
812 void foo(void){ __asm__ volatile($code); }
813 EOF
814 }
815
816 check_insn(){
817 log check_insn "$@"
818 check_inline_asm ${1}_inline "\"$2\""
819 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
820 }
821
822 check_x86asm(){
823 log check_x86asm "$@"
824 echo "$1" > $TMPS
825 log_file $TMPS
826 shift 1
827 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
828 }
829
830 ld_o(){
831 eval printf '%s\\n' $LD_O
832 }
833
834 check_ld(){
835 log check_ld "$@"
836 flags=$(filter_out '-l*' "$@")
837 libs=$(filter '-l*' "$@")
838 check_cc $($cflags_filter $flags) || return
839 flags=$($ldflags_filter $flags)
840 libs=$($ldflags_filter $libs)
841 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
842 }
843
844 print_include(){
845 hdr=$1
846 test "${hdr%.h}" = "${hdr}" &&
847 echo "#include $hdr" ||
848 echo "#include <$hdr>"
849 }
850
851 check_code(){
852 log check_code "$@"
853 check=$1
854 headers=$2
855 code=$3
856 shift 3
857 {
858 for hdr in $headers; do
859 print_include $hdr
860 done
861 echo "int main(void) { $code; return 0; }"
862 } | check_$check "$@"
863 }
864
865 check_cppflags(){
866 log check_cppflags "$@"
867 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
868 #include <stdlib.h>;
869 EOF
870 }
871
872 test_cflags(){
873 log test_cflags "$@"
874 set -- $($cflags_filter "$@")
875 check_cc "$@" <<EOF
876 int x;
877 EOF
878 }
879
880 check_cflags(){
881 log check_cflags "$@"
882 test_cflags "$@" && add_cflags "$@"
883 }
884
885 test_objcflags(){
886 log test_objcflags "$@"
887 set -- $($objcflags_filter "$@")
888 check_objcc "$@" <<EOF
889 int x;
890 EOF
891 }
892
893 check_objcflags(){
894 log check_objcflags "$@"
895 test_objcflags "$@" && add_objcflags "$@"
896 }
897
898 test_ldflags(){
899 log test_ldflags "$@"
900 set -- $($ldflags_filter "$@")
901 check_ld "$@" <<EOF
902 int main(void){ return 0; }
903 EOF
904 }
905
906 check_ldflags(){
907 log check_ldflags "$@"
908 test_ldflags "$@" && add_ldflags "$@"
909 }
910
911 test_stripflags(){
912 log test_stripflags "$@"
913 # call check_cc to get a fresh TMPO
914 check_cc <<EOF
915 int main(void) { return 0; }
916 EOF
917 check_cmd $strip $STRIPFLAGS "$@" $TMPO
918 }
919
920 check_stripflags(){
921 log check_stripflags "$@"
922 test_stripflags "$@" && add_stripflags "$@"
923 }
924
925 check_header(){
926 log check_header "$@"
927 headers=$1
928 shift
929 disable_sanitized $headers
930 {
931 for hdr in $headers; do
932 print_include $hdr
933 done
934 echo "int x;"
935 } | check_cpp "$@" && enable_sanitized $headers
936 }
937
938 check_func(){
939 log check_func "$@"
940 func=$1
941 shift
942 disable $func
943 check_ld "$@" <<EOF && enable $func
944 extern int $func();
945 int main(void){ $func(); }
946 EOF
947 }
948
949 check_mathfunc(){
950 log check_mathfunc "$@"
951 func=$1
952 narg=$2
953 shift 2
954 test $narg = 2 && args="f, g" || args="f"
955 disable $func
956 check_ld "$@" <<EOF && enable $func
957 #include <math.h>
958 float foo(float f, float g) { return $func($args); }
959 int main(void){ return 0; }
960 EOF
961 }
962
963 check_func_headers(){
964 log check_func_headers "$@"
965 headers=$1
966 funcs=$2
967 shift 2
968 {
969 for hdr in $headers; do
970 print_include $hdr
971 done
972 for func in $funcs; do
973 echo "long check_$func(void) { return (long) $func; }"
974 done
975 echo "int main(void) { return 0; }"
976 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
977 }
978
979 check_cpp_condition(){
980 log check_cpp_condition "$@"
981 header=$1
982 condition=$2
983 shift 2
984 check_cpp "$@" <<EOF
985 #include <$header>
986 #if !($condition)
987 #error "unsatisfied condition: $condition"
988 #endif
989 EOF
990 }
991
992 test_cflags_cpp(){
993 log test_cflags_cpp "$@"
994 flags=$1
995 condition=$2
996 shift 2
997 set -- $($cflags_filter "$flags")
998 check_cpp "$@" <<EOF
999 #if !($condition)
1000 #error "unsatisfied condition: $condition"
1001 #endif
1002 EOF
1003 }
1004
1005 check_lib(){
1006 log check_lib "$@"
1007 name="$1"
1008 headers="$2"
1009 funcs="$3"
1010 shift 3
1011 disable $name
1012 check_func_headers "$headers" "$funcs" "$@" &&
1013 enable $name && eval ${name}_extralibs="\$@"
1014 }
1015
1016 test_pkg_config(){
1017 log test_pkg_config "$@"
1018 name="$1"
1019 pkg_version="$2"
1020 pkg="${2%% *}"
1021 headers="$3"
1022 funcs="$4"
1023 shift 4
1024 disable $name
1025 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1026 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1027 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1028 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1029 enable $name &&
1030 set_sanitized "${name}_cflags" $pkg_cflags &&
1031 set_sanitized "${name}_extralibs" $pkg_libs
1032 }
1033
1034 check_pkg_config(){
1035 log check_pkg_config "$@"
1036 name="$1"
1037 test_pkg_config "$@" &&
1038 eval add_cflags \$${name}_cflags
1039 }
1040
1041 check_exec(){
1042 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1043 }
1044
1045 check_exec_crash(){
1046 log check_exec_crash "$@"
1047 code=$(cat)
1048
1049 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1050 # are safe but may not be available everywhere. Thus we use
1051 # raise(SIGTERM) instead. The check is run in a subshell so we
1052 # can redirect the "Terminated" message from the shell. SIGBUS
1053 # is not defined by standard C so it is used conditionally.
1054
1055 (check_exec "$@") >> $logfile 2>&1 <<EOF
1056 #include <signal.h>
1057 static void sighandler(int sig){
1058 raise(SIGTERM);
1059 }
1060 int foo(void){
1061 $code
1062 }
1063 int (*func_ptr)(void) = foo;
1064 int main(void){
1065 signal(SIGILL, sighandler);
1066 signal(SIGFPE, sighandler);
1067 signal(SIGSEGV, sighandler);
1068 #ifdef SIGBUS
1069 signal(SIGBUS, sighandler);
1070 #endif
1071 return func_ptr();
1072 }
1073 EOF
1074 }
1075
1076 check_type(){
1077 log check_type "$@"
1078 headers=$1
1079 type=$2
1080 shift 2
1081 disable_sanitized "$type"
1082 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1083 }
1084
1085 check_struct(){
1086 log check_struct "$@"
1087 headers=$1
1088 struct=$2
1089 member=$3
1090 shift 3
1091 disable_sanitized "${struct}_${member}"
1092 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1093 enable_sanitized "${struct}_${member}"
1094 }
1095
1096 check_builtin(){
1097 log check_builtin "$@"
1098 name=$1
1099 headers=$2
1100 builtin=$3
1101 shift 3
1102 disable "$name"
1103 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1104 }
1105
1106 check_compile_assert(){
1107 log check_compile_assert "$@"
1108 name=$1
1109 headers=$2
1110 condition=$3
1111 shift 3
1112 disable "$name"
1113 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1114 }
1115
1116 require(){
1117 log require "$@"
1118 name_version="$1"
1119 name="${1%% *}"
1120 headers="$2"
1121 func="$3"
1122 shift 3
1123 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1124 }
1125
1126 require_header(){
1127 log require_header "$@"
1128 headers="$1"
1129 shift
1130 check_header "$headers" "$@" || die "ERROR: $headers not found"
1131 }
1132
1133 require_cpp_condition(){
1134 log require_cpp_condition "$@"
1135 header="$1"
1136 condition="$2"
1137 shift 2
1138 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1139 }
1140
1141 require_pkg_config(){
1142 log require_pkg_config "$@"
1143 pkg_version="$2"
1144 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1145 }
1146
1147 hostcc_e(){
1148 eval printf '%s\\n' $HOSTCC_E
1149 }
1150
1151 hostcc_o(){
1152 eval printf '%s\\n' $HOSTCC_O
1153 }
1154
1155 check_host_cc(){
1156 log check_host_cc "$@"
1157 cat > $TMPC
1158 log_file $TMPC
1159 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1160 }
1161
1162 check_host_cpp(){
1163 log check_host_cpp "$@"
1164 cat > $TMPC
1165 log_file $TMPC
1166 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1167 }
1168
1169 check_host_cppflags(){
1170 log check_host_cppflags "$@"
1171 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1172 #include <stdlib.h>;
1173 EOF
1174 }
1175
1176 check_host_cflags(){
1177 log check_host_cflags "$@"
1178 set -- $($host_cflags_filter "$@")
1179 check_host_cc "$@" <<EOF && append host_cflags "$@"
1180 int x;
1181 EOF
1182 }
1183
1184 check_host_cpp_condition(){
1185 log check_host_cpp_condition "$@"
1186 header=$1
1187 condition=$2
1188 shift 2
1189 check_host_cpp "$@" <<EOF
1190 #include <$header>
1191 #if !($condition)
1192 #error "unsatisfied condition: $condition"
1193 #endif
1194 EOF
1195 }
1196
1197 cp_if_changed(){
1198 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1199 mkdir -p "$(dirname $2)"
1200 cp -f "$1" "$2"
1201 }
1202
1203 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1204 # system-dependent things.
1205
1206 AVCODEC_COMPONENTS="
1207 bsfs
1208 decoders
1209 encoders
1210 hwaccels
1211 parsers
1212 "
1213
1214 AVDEVICE_COMPONENTS="
1215 indevs
1216 "
1217 AVFILTER_COMPONENTS="
1218 filters
1219 "
1220 AVFORMAT_COMPONENTS="
1221 demuxers
1222 muxers
1223 protocols
1224 "
1225
1226 COMPONENT_LIST="
1227 $AVCODEC_COMPONENTS
1228 $AVDEVICE_COMPONENTS
1229 $AVFILTER_COMPONENTS
1230 $AVFORMAT_COMPONENTS
1231 "
1232
1233 EXAMPLE_LIST="
1234 decode_audio_example
1235 decode_video_example
1236 encode_audio_example
1237 encode_video_example
1238 filter_audio_example
1239 metadata_example
1240 output_example
1241 qsvdec_example
1242 transcode_aac_example
1243 "
1244
1245 # catchall list of things that require external libs to link
1246 EXTRALIBS_LIST="
1247 cpu_init
1248 cws2fws
1249 "
1250
1251 HWACCEL_LIBRARY_NONFREE_LIST="
1252 cuda
1253 cuvid
1254 libnpp
1255 "
1256 HWACCEL_LIBRARY_LIST="
1257 $HWACCEL_LIBRARY_NONFREE_LIST
1258 d3d11va
1259 dxva2
1260 libmfx
1261 mmal
1262 nvenc
1263 omx
1264 vaapi
1265 vda
1266 vdpau
1267 "
1268
1269 EXTERNAL_LIBRARY_GPL_LIST="
1270 libcdio
1271 libx264
1272 libx265
1273 libxavs
1274 libxvid
1275 "
1276
1277 EXTERNAL_LIBRARY_NONFREE_LIST="
1278 libfaac
1279 libfdk_aac
1280 openssl
1281 "
1282
1283 EXTERNAL_LIBRARY_VERSION3_LIST="
1284 libopencore_amrnb
1285 libopencore_amrwb
1286 libvo_aacenc
1287 libvo_amrwbenc
1288 "
1289
1290 EXTERNAL_LIBRARY_LIST="
1291 $EXTERNAL_LIBRARY_GPL_LIST
1292 $EXTERNAL_LIBRARY_NONFREE_LIST
1293 $EXTERNAL_LIBRARY_VERSION3_LIST
1294 avisynth
1295 avxsynth
1296 frei0r
1297 gnutls
1298 libbs2b
1299 libdc1394
1300 libdcadec
1301 libfontconfig
1302 libfreetype
1303 libgsm
1304 libhdcd
1305 libilbc
1306 libjack
1307 libkvazaar
1308 libmp3lame
1309 libopencv
1310 libopenh264
1311 libopenjpeg
1312 libopus
1313 libpulse
1314 librtmp
1315 libschroedinger
1316 libsnappy
1317 libspeex
1318 libtheora
1319 libtwolame
1320 libvorbis
1321 libvpx
1322 libwavpack
1323 libwebp
1324 libxcb
1325 libxcb_shm
1326 libxcb_xfixes
1327 "
1328
1329 SYSTEM_LIBRARY_LIST="
1330 bzlib
1331 zlib
1332 "
1333
1334 FEATURE_LIST="
1335 gray
1336 hardcoded_tables
1337 omx_rpi
1338 runtime_cpudetect
1339 safe_bitstream_reader
1340 shared
1341 small
1342 sram
1343 static
1344 swscale_alpha
1345 "
1346
1347 LIBRARY_LIST="
1348 avcodec
1349 avdevice
1350 avfilter
1351 avformat
1352 avresample
1353 avutil
1354 swscale
1355 "
1356
1357 LICENSE_LIST="
1358 gpl
1359 nonfree
1360 version3
1361 "
1362
1363 PROGRAM_LIST="
1364 avconv
1365 avplay
1366 avprobe
1367 "
1368
1369 SUBSYSTEM_LIST="
1370 dct
1371 doc
1372 error_resilience
1373 faan
1374 fft
1375 lsp
1376 lzo
1377 mdct
1378 network
1379 rdft
1380 "
1381
1382 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1383 CONFIG_LIST="
1384 $EXAMPLE_LIST
1385 $EXTERNAL_LIBRARY_LIST
1386 $HWACCEL_LIBRARY_LIST
1387 $FEATURE_LIST
1388 $LICENSE_LIST
1389 $LIBRARY_LIST
1390 $PROGRAM_LIST
1391 $SUBSYSTEM_LIST
1392 $SYSTEM_LIBRARY_LIST
1393 neon_clobber_test
1394 pic
1395 pod2man
1396 texi2html
1397 thumb
1398 valgrind_backtrace
1399 xmm_clobber_test
1400 $COMPONENT_LIST
1401 "
1402
1403 THREADS_LIST="
1404 pthreads
1405 w32threads
1406 "
1407
1408 ATOMICS_LIST="
1409 atomics_gcc
1410 atomics_suncc
1411 atomics_win32
1412 "
1413
1414 ARCH_LIST="
1415 aarch64
1416 alpha
1417 arm
1418 avr32
1419 avr32_ap
1420 avr32_uc
1421 bfin
1422 ia64
1423 m68k
1424 mips
1425 mips64
1426 parisc
1427 ppc
1428 ppc64
1429 s390
1430 sh4
1431 sparc
1432 sparc64
1433 tilegx
1434 tilepro
1435 tomi
1436 x86
1437 x86_32
1438 x86_64
1439 "
1440
1441 ARCH_EXT_LIST_ARM="
1442 armv5te
1443 armv6
1444 armv6t2
1445 armv8
1446 neon
1447 vfp
1448 vfpv3
1449 "
1450
1451 ARCH_EXT_LIST_X86_SIMD="
1452 amd3dnow
1453 amd3dnowext
1454 avx
1455 avx2
1456 fma3
1457 fma4
1458 mmx
1459 mmxext
1460 sse
1461 sse2
1462 sse3
1463 sse4
1464 sse42
1465 ssse3
1466 xop
1467 "
1468
1469 ARCH_EXT_LIST_PPC="
1470 altivec
1471 dcbzl
1472 ldbrx
1473 power8
1474 ppc4xx
1475 vsx
1476 "
1477
1478 ARCH_EXT_LIST_X86="
1479 $ARCH_EXT_LIST_X86_SIMD
1480 cpunop
1481 i686
1482 "
1483
1484 ARCH_EXT_LIST_MIPS="
1485 loongson
1486 mips32r1
1487 mips64r1
1488 mips32r2
1489 mips64r2
1490 mips32r6
1491 mips64r6
1492 "
1493
1494 ARCH_EXT_LIST="
1495 $ARCH_EXT_LIST_ARM
1496 $ARCH_EXT_LIST_MIPS
1497 $ARCH_EXT_LIST_PPC
1498 $ARCH_EXT_LIST_X86
1499 vis
1500 "
1501
1502 ARCH_FEATURES="
1503 aligned_stack
1504 fast_64bit
1505 fast_clz
1506 fast_cmov
1507 local_aligned_8
1508 local_aligned_16
1509 local_aligned_32
1510 simd_align_16
1511 simd_align_32
1512 "
1513
1514 BUILTIN_LIST="
1515 atomic_cas_ptr
1516 machine_rw_barrier
1517 MemoryBarrier
1518 mm_empty
1519 rdtsc
1520 sem_timedwait
1521 sync_val_compare_and_swap
1522 "
1523 HAVE_LIST_CMDLINE="
1524 inline_asm
1525 symver
1526 x86asm
1527 "
1528
1529 HAVE_LIST_PUB="
1530 bigendian
1531 fast_unaligned
1532 "
1533
1534 HEADERS_LIST="
1535 AVFoundation_AVFoundation_h
1536 arpa_inet_h
1537 cdio_paranoia_h
1538 cdio_paranoia_paranoia_h
1539 dispatch_dispatch_h
1540 dev_bktr_ioctl_bt848_h
1541 dev_bktr_ioctl_meteor_h
1542 dev_ic_bt8xx_h
1543 dev_video_bktr_ioctl_bt848_h
1544 dev_video_meteor_ioctl_meteor_h
1545 direct_h
1546 dxgidebug_h
1547 dxva_h
1548 io_h
1549 machine_ioctl_bt848_h
1550 machine_ioctl_meteor_h
1551 malloc_h
1552 poll_h
1553 sys_param_h
1554 sys_resource_h
1555 sys_select_h
1556 sys_soundcard_h
1557 sys_time_h
1558 sys_un_h
1559 sys_videoio_h
1560 unistd_h
1561 valgrind_valgrind_h
1562 windows_h
1563 winsock2_h
1564 "
1565
1566 INTRINSICS_LIST="
1567 intrinsics_neon
1568 "
1569
1570 MATH_FUNCS="
1571 atanf
1572 atan2f
1573 cbrtf
1574 cosf
1575 exp2
1576 exp2f
1577 expf
1578 isinf
1579 isnan
1580 ldexpf
1581 llrint
1582 llrintf
1583 log2
1584 log2f
1585 log10f
1586 lrint
1587 lrintf
1588 powf
1589 rint
1590 round
1591 roundf
1592 sinf
1593 trunc
1594 truncf
1595 "
1596
1597 SYSTEM_FEATURES="
1598 dos_paths
1599 libc_msvcrt
1600 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1601 section_data_rel_ro
1602 threads
1603 uwp
1604 "
1605
1606 SYSTEM_FUNCS="
1607 aligned_malloc
1608 clock_gettime
1609 closesocket
1610 CommandLineToArgvW
1611 fcntl
1612 getaddrinfo
1613 gethrtime
1614 getopt
1615 GetProcessAffinityMask
1616 GetProcessMemoryInfo
1617 GetProcessTimes
1618 getrusage
1619 GetSystemTimeAsFileTime
1620 gettimeofday
1621 gmtime_r
1622 inet_aton
1623 isatty
1624 localtime_r
1625 mach_absolute_time
1626 MapViewOfFile
1627 memalign
1628 mmap
1629 mprotect
1630 nanosleep
1631 posix_memalign
1632 sched_getaffinity
1633 SetConsoleTextAttribute
1634 setmode
1635 setrlimit
1636 Sleep
1637 strerror_r
1638 sysconf
1639 sysctl
1640 usleep
1641 VirtualAlloc
1642 "
1643
1644 SYSTEM_LIBRARIES="
1645 sdl
1646 vaapi_1
1647 vaapi_drm
1648 vaapi_x11
1649 vdpau_x11
1650 wincrypt
1651 "
1652
1653 TOOLCHAIN_FEATURES="
1654 as_arch_directive
1655 as_fpu_directive
1656 as_func
1657 as_object_arch
1658 asm_mod_q
1659 blocks_extension
1660 ebp_available
1661 ebx_available
1662 gnu_as
1663 ibm_asm
1664 inline_asm_labels
1665 pragma_deprecated
1666 symver_asm_label
1667 symver_gnu_asm
1668 vfp_args
1669 xform_asm
1670 xmm_clobbers
1671 "
1672
1673 TYPES_LIST="
1674 CONDITION_VARIABLE_Ptr
1675 CUVIDDECODECREATEINFO_bitDepthMinus8
1676 socklen_t
1677 struct_addrinfo
1678 struct_group_source_req
1679 struct_ip_mreq_source
1680 struct_ipv6_mreq
1681 struct_pollfd
1682 struct_rusage_ru_maxrss
1683 struct_sockaddr_in6
1684 struct_sockaddr_sa_len
1685 struct_sockaddr_storage
1686 struct_v4l2_frmivalenum_discrete
1687 "
1688
1689 HAVE_LIST="
1690 $ARCH_EXT_LIST
1691 $(add_suffix _external $ARCH_EXT_LIST)
1692 $(add_suffix _inline $ARCH_EXT_LIST)
1693 $ARCH_FEATURES
1694 $BUILTIN_LIST
1695 $HAVE_LIST_CMDLINE
1696 $HAVE_LIST_PUB
1697 $HEADERS_LIST
1698 $INTRINSICS_LIST
1699 $MATH_FUNCS
1700 $SYSTEM_FEATURES
1701 $SYSTEM_FUNCS
1702 $SYSTEM_LIBRARIES
1703 $THREADS_LIST
1704 $TOOLCHAIN_FEATURES
1705 $TYPES_LIST
1706 "
1707
1708 # options emitted with CONFIG_ prefix but not available on the command line
1709 CONFIG_EXTRA="
1710 aandcttables
1711 ac3dsp
1712 adts_header
1713 audio_frame_queue
1714 audiodsp
1715 blockdsp
1716 bswapdsp
1717 cabac
1718 cbs
1719 cbs_h264
1720 cbs_h265
1721 cbs_mpeg2
1722 dirac_parse
1723 dvprofile
1724 faandct
1725 faanidct
1726 fdctdsp
1727 flacdsp
1728 fmtconvert
1729 g722dsp
1730 gmp
1731 golomb
1732 gplv3
1733 h263dsp
1734 h264chroma
1735 h264dsp
1736 h264parse
1737 h264pred
1738 h264qpel
1739 hevcparse
1740 hpeldsp
1741 huffman
1742 huffyuvdsp
1743 huffyuvencdsp
1744 idctdsp
1745 iirfilter
1746 imdct15
1747 intrax8
1748 iso_media
1749 ividsp
1750 jpegtables
1751 lgplv3
1752 libx262
1753 libxcb_shape
1754 lpc
1755 lzf
1756 me_cmp
1757 mpeg_er
1758 mpegaudio
1759 mpegaudiodsp
1760 mpegaudioheader
1761 mpegvideo
1762 mpegvideoenc
1763 mss34dsp
1764 pixblockdsp
1765 qpeldsp
1766 qsv
1767 qsvdec
1768 qsvenc
1769 qsvvpp
1770 rangecoder
1771 riffdec
1772 riffenc
1773 rtpdec
1774 rtpenc_chain
1775 rv34dsp
1776 sinewin
1777 snappy
1778 srtp
1779 startcode
1780 texturedsp
1781 texturedspenc
1782 tpeldsp
1783 vaapi_encode
1784 vc1dsp
1785 videodsp
1786 vp3dsp
1787 vp56dsp
1788 vp8dsp
1789 wma_freqs
1790 wmv2dsp
1791 "
1792
1793 CMDLINE_SELECT="
1794 $ARCH_EXT_LIST
1795 $CONFIG_LIST
1796 $HAVE_LIST_CMDLINE
1797 $THREADS_LIST
1798 asm
1799 cross_compile
1800 debug
1801 extra_warnings
1802 logging
1803 lto
1804 optimizations
1805 rpath
1806 "
1807
1808 PATHS_LIST="
1809 bindir
1810 datadir
1811 docdir
1812 incdir
1813 libdir
1814 mandir
1815 prefix
1816 shlibdir
1817 "
1818
1819 CMDLINE_SET="
1820 $PATHS_LIST
1821 ar
1822 arch
1823 as
1824 cc
1825 objcc
1826 cpu
1827 cross_prefix
1828 custom_allocator
1829 dep_cc
1830 env
1831 extra_version
1832 host_cc
1833 host_cflags
1834 host_extralibs
1835 host_ld
1836 host_ldflags
1837 host_os
1838 ignore_tests
1839 ld
1840 logfile
1841 malloc_prefix
1842 nm
1843 optflags
1844 pkg_config
1845 pkg_config_flags
1846 samples
1847 sysinclude
1848 sysroot
1849 target_exec
1850 target_os
1851 target_path
1852 target_samples
1853 toolchain
1854 x86asmexe
1855 "
1856
1857 CMDLINE_APPEND="
1858 extra_cflags
1859 extra_objcflags
1860 host_cppflags
1861 "
1862
1863 # code dependency declarations
1864
1865 # architecture extensions
1866
1867 armv5te_deps="arm"
1868 armv6_deps="arm"
1869 armv6t2_deps="arm"
1870 armv8_deps="aarch64"
1871 neon_deps_any="aarch64 arm"
1872 intrinsics_neon_deps="neon"
1873 vfp_deps_any="aarch64 arm"
1874 vfpv3_deps="vfp"
1875
1876 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1877
1878 altivec_deps="ppc"
1879 dcbzl_deps="ppc"
1880 ldbrx_deps="ppc"
1881 ppc4xx_deps="ppc"
1882 vsx_deps="altivec"
1883 power8_deps="vsx"
1884
1885 loongson_deps="mips"
1886 mips32r1_deps="mips32"
1887 mips32r2_deps="mips32"
1888 mips32r6_deps="mips32"
1889 mips64r1_deps="mips64"
1890 mips64r2_deps="mips64"
1891 mips64r6_deps="mips64"
1892
1893 vis_deps="sparc"
1894
1895 cpunop_deps="i686"
1896 x86_64_select="i686"
1897 x86_64_suggest="fast_cmov"
1898
1899 amd3dnow_deps="mmx"
1900 amd3dnowext_deps="amd3dnow"
1901 i686_deps="x86"
1902 mmx_deps="x86"
1903 mmxext_deps="mmx"
1904 sse_deps="mmxext"
1905 sse2_deps="sse"
1906 sse3_deps="sse2"
1907 ssse3_deps="sse3"
1908 sse4_deps="ssse3"
1909 sse42_deps="sse4"
1910 avx_deps="sse42"
1911 xop_deps="avx"
1912 fma3_deps="avx"
1913 fma4_deps="avx"
1914 avx2_deps="avx"
1915
1916 mmx_external_deps="x86asm"
1917 mmx_inline_deps="inline_asm x86"
1918 mmx_suggest="mmx_external mmx_inline"
1919
1920 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1921 eval dep=\$${ext}_deps
1922 eval ${ext}_external_deps='"${dep}_external"'
1923 eval ${ext}_inline_deps='"${dep}_inline"'
1924 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1925 done
1926
1927 aligned_stack_if_any="aarch64 ppc x86"
1928 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1929 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1930 fast_unaligned_if_any="aarch64 ppc x86"
1931 simd_align_16_if_any="altivec neon sse"
1932 simd_align_32_if_any="avx"
1933
1934 # system capabilities
1935 symver_if_any="symver_asm_label symver_gnu_asm"
1936 valgrind_backtrace_conflict="optimizations"
1937 valgrind_backtrace_deps="valgrind_valgrind_h"
1938
1939 # threading support
1940 atomics_gcc_if="sync_val_compare_and_swap"
1941 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1942 atomics_win32_if="MemoryBarrier"
1943 atomics_native_if_any="$ATOMICS_LIST"
1944 w32threads_deps="atomics_native"
1945 threads_if_any="$THREADS_LIST"
1946
1947 # subsystems
1948 cbs_h264_select="cbs golomb"
1949 cbs_h265_select="cbs golomb"
1950 cbs_mpeg2_select="cbs"
1951 dct_select="rdft"
1952 dirac_parse_select="golomb"
1953 error_resilience_select="me_cmp"
1954 faandct_deps="faan"
1955 faandct_select="fdctdsp"
1956 faanidct_deps="faan"
1957 faanidct_select="idctdsp"
1958 h264dsp_select="startcode"
1959 hevcparse_select="golomb"
1960 intrax8_select="blockdsp idctdsp"
1961 mdct_select="fft"
1962 rdft_select="fft"
1963 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1964 mpeg_er_select="error_resilience"
1965 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1966 mpegaudiodsp_select="dct"
1967 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1968 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1969 vc1dsp_select="h264chroma qpeldsp startcode"
1970
1971 # decoders / encoders
1972 aac_decoder_select="adts_header imdct15 mdct sinewin"
1973 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1974 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1975 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1976 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1977 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1978 adpcm_g722_decoder_select="g722dsp"
1979 adpcm_g722_encoder_select="g722dsp"
1980 aic_decoder_select="golomb idctdsp"
1981 alac_encoder_select="lpc"
1982 als_decoder_select="bswapdsp"
1983 amrnb_decoder_select="lsp"
1984 amrwb_decoder_select="lsp"
1985 amv_decoder_select="sp5x_decoder"
1986 ape_decoder_select="bswapdsp"
1987 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1988 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1989 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1990 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1991 atrac1_decoder_select="mdct sinewin"
1992 atrac3_decoder_select="mdct"
1993 atrac3p_decoder_select="mdct sinewin"
1994 bink_decoder_select="blockdsp hpeldsp"
1995 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1996 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1997 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1998 clearvideo_decoder_select="idctdsp"
1999 cllc_decoder_select="bswapdsp"
2000 comfortnoise_encoder_select="lpc"
2001 cook_decoder_select="audiodsp mdct sinewin"
2002 cscd_decoder_select="lzo"
2003 cscd_decoder_suggest="zlib"
2004 dca_decoder_select="fmtconvert mdct"
2005 dds_decoder_select="texturedsp"
2006 dnxhd_decoder_select="blockdsp idctdsp"
2007 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2008 dvvideo_decoder_select="dvprofile idctdsp"
2009 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2010 dxa_decoder_deps="zlib"
2011 dxv_decoder_select="lzf texturedsp"
2012 eac3_decoder_select="ac3_decoder"
2013 eac3_encoder_select="ac3_encoder"
2014 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2015 eatgq_decoder_select="aandcttables idctdsp"
2016 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2017 exr_decoder_deps="zlib"
2018 ffv1_decoder_select="rangecoder"
2019 ffv1_encoder_select="rangecoder"
2020 ffvhuff_decoder_select="huffyuv_decoder"
2021 ffvhuff_encoder_select="huffyuv_encoder"
2022 fic_decoder_select="golomb"
2023 flac_decoder_select="flacdsp"
2024 flac_encoder_select="bswapdsp flacdsp lpc"
2025 flashsv_decoder_deps="zlib"
2026 flashsv_encoder_deps="zlib"
2027 flashsv2_decoder_deps="zlib"
2028 flv_decoder_select="h263_decoder"
2029 flv_encoder_select="h263_encoder"
2030 fourxm_decoder_select="blockdsp bswapdsp"
2031 fraps_decoder_select="bswapdsp huffman"
2032 g2m_decoder_deps="zlib"
2033 g2m_decoder_select="blockdsp idctdsp jpegtables"
2034 h261_decoder_select="mpeg_er mpegvideo"
2035 h261_encoder_select="aandcttables mpegvideoenc"
2036 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2037 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2038 h263i_decoder_select="h263_decoder"
2039 h263p_encoder_select="h263_encoder"
2040 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2041 h264_decoder_suggest="error_resilience"
2042 hap_decoder_select="snappy texturedsp"
2043 hap_encoder_deps="libsnappy"
2044 hap_encoder_select="texturedspenc"
2045 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2046 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2047 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2048 iac_decoder_select="imc_decoder"
2049 imc_decoder_select="bswapdsp fft mdct sinewin"
2050 indeo3_decoder_select="hpeldsp"
2051 indeo4_decoder_select="ividsp"
2052 indeo5_decoder_select="ividsp"
2053 interplay_video_decoder_select="hpeldsp"
2054 jpegls_decoder_select="mjpeg_decoder"
2055 jv_decoder_select="blockdsp"
2056 lagarith_decoder_select="huffyuvdsp"
2057 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2058 magicyuv_decoder_select="huffyuvdsp"
2059 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2060 metasound_decoder_select="lsp mdct sinewin"
2061 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2062 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2063 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2064 mjpegb_decoder_select="mjpeg_decoder"
2065 mlp_decoder_select="mlp_parser"
2066 motionpixels_decoder_select="bswapdsp"
2067 mp1_decoder_select="mpegaudio"
2068 mp1float_decoder_select="mpegaudio"
2069 mp2_decoder_select="mpegaudio"
2070 mp2float_decoder_select="mpegaudio"
2071 mp3_decoder_select="mpegaudio"
2072 mp3adu_decoder_select="mpegaudio"
2073 mp3adufloat_decoder_select="mpegaudio"
2074 mp3float_decoder_select="mpegaudio"
2075 mp3on4_decoder_select="mpegaudio"
2076 mp3on4float_decoder_select="mpegaudio"
2077 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2078 mpc8_decoder_select="mpegaudiodsp"
2079 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2080 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2081 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2082 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2083 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2084 mpeg4_encoder_select="h263_encoder"
2085 msa1_decoder_select="mss34dsp"
2086 msmpeg4v1_decoder_select="h263_decoder"
2087 msmpeg4v2_decoder_select="h263_decoder"
2088 msmpeg4v2_encoder_select="h263_encoder"
2089 msmpeg4v3_decoder_select="h263_decoder"
2090 msmpeg4v3_encoder_select="h263_encoder"
2091 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2092 mts2_decoder_select="mss34dsp"
2093 mxpeg_decoder_select="mjpeg_decoder"
2094 nellymoser_decoder_select="mdct sinewin"
2095 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2096 nuv_decoder_select="idctdsp lzo"
2097 on2avc_decoder_select="mdct"
2098 opus_decoder_deps="avresample"
2099 opus_decoder_select="imdct15"
2100 png_decoder_deps="zlib"
2101 png_encoder_deps="zlib"
2102 png_encoder_select="huffyuvencdsp"
2103 prores_decoder_select="idctdsp"
2104 prores_encoder_select="fdctdsp"
2105 qcelp_decoder_select="lsp"
2106 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2107 ra_144_encoder_select="audio_frame_queue lpc"
2108 ralf_decoder_select="golomb"
2109 rscc_decoder_deps="zlib"
2110 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2111 rv10_encoder_select="h263_encoder"
2112 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2113 rv20_encoder_select="h263_encoder"
2114 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2115 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2116 screenpresso_decoder_deps="zlib"
2117 sipr_decoder_select="lsp"
2118 sp5x_decoder_select="mjpeg_decoder"
2119 svq1_decoder_select="hpeldsp"
2120 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2121 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2122 svq3_decoder_suggest="zlib"
2123 tak_decoder_select="audiodsp"
2124 tdsc_decoder_deps="zlib"
2125 tdsc_decoder_select="mjpeg_decoder"
2126 theora_decoder_select="vp3_decoder"
2127 thp_decoder_select="mjpeg_decoder"
2128 tiff_decoder_suggest="zlib"
2129 tiff_encoder_suggest="zlib"
2130 truehd_decoder_select="mlp_decoder"
2131 truemotion2_decoder_select="bswapdsp"
2132 truespeech_decoder_select="bswapdsp"
2133 tscc_decoder_deps="zlib"
2134 txd_decoder_select="texturedsp"
2135 twinvq_decoder_select="mdct lsp sinewin"
2136 utvideo_decoder_select="bswapdsp huffyuvdsp"
2137 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2138 vble_decoder_select="huffyuvdsp"
2139 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2140 vc1image_decoder_select="vc1_decoder"
2141 vorbis_decoder_select="mdct"
2142 vorbis_encoder_select="mdct"
2143 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2144 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2145 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2146 vp6a_decoder_select="vp6_decoder"
2147 vp6f_decoder_select="vp6_decoder"
2148 vp7_decoder_select="h264pred videodsp vp8dsp"
2149 vp8_decoder_select="h264pred videodsp vp8dsp"
2150 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2151 webp_decoder_select="vp8_decoder"
2152 wmapro_decoder_select="mdct sinewin wma_freqs"
2153 wmav1_decoder_select="mdct sinewin wma_freqs"
2154 wmav1_encoder_select="mdct sinewin wma_freqs"
2155 wmav2_decoder_select="mdct sinewin wma_freqs"
2156 wmav2_encoder_select="mdct sinewin wma_freqs"
2157 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2158 wmv1_decoder_select="h263_decoder"
2159 wmv1_encoder_select="h263_encoder"
2160 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2161 wmv2_encoder_select="h263_encoder wmv2dsp"
2162 wmv3_decoder_select="vc1_decoder"
2163 wmv3image_decoder_select="wmv3_decoder"
2164 zerocodec_decoder_deps="zlib"
2165 zlib_decoder_deps="zlib"
2166 zlib_encoder_deps="zlib"
2167 zmbv_decoder_deps="zlib"
2168 zmbv_encoder_deps="zlib"
2169
2170 # hardware accelerators
2171 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2172 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2173 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2174 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2175
2176 h263_vaapi_hwaccel_deps="vaapi"
2177 h263_vaapi_hwaccel_select="h263_decoder"
2178 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2179 h264_cuvid_hwaccel_select="h264_decoder"
2180 h264_d3d11va_hwaccel_deps="d3d11va"
2181 h264_d3d11va_hwaccel_select="h264_decoder"
2182 h264_d3d11va2_hwaccel_deps="d3d11va"
2183 h264_d3d11va2_hwaccel_select="h264_decoder"
2184 h264_dxva2_hwaccel_deps="dxva2"
2185 h264_dxva2_hwaccel_select="h264_decoder"
2186 h264_mmal_hwaccel_deps="mmal"
2187 h264_qsv_hwaccel_deps="libmfx"
2188 h264_vaapi_hwaccel_deps="vaapi"
2189 h264_vaapi_hwaccel_select="h264_decoder"
2190 h264_vda_hwaccel_deps="vda"
2191 h264_vda_hwaccel_select="h264_decoder"
2192 h264_vda_old_hwaccel_deps="vda"
2193 h264_vda_old_hwaccel_select="h264_decoder"
2194 h264_vdpau_hwaccel_deps="vdpau"
2195 h264_vdpau_hwaccel_select="h264_decoder"
2196 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2197 hevc_cuvid_hwaccel_select="hevc_decoder"
2198 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2199 hevc_d3d11va_hwaccel_select="hevc_decoder"
2200 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2201 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2202 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2203 hevc_dxva2_hwaccel_select="hevc_decoder"
2204 hevc_qsv_hwaccel_deps="libmfx"
2205 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2206 hevc_vaapi_hwaccel_select="hevc_decoder"
2207 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2208 hevc_vdpau_hwaccel_select="hevc_decoder"
2209 mpeg1_vdpau_hwaccel_deps="vdpau"
2210 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2211 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2212 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2213 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2214 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2215 mpeg2_dxva2_hwaccel_deps="dxva2"
2216 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2217 mpeg2_mmal_hwaccel_deps="mmal"
2218 mpeg2_qsv_hwaccel_deps="libmfx"
2219 mpeg2_vaapi_hwaccel_deps="vaapi"
2220 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2221 mpeg2_vdpau_hwaccel_deps="vdpau"
2222 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2223 mpeg4_vaapi_hwaccel_deps="vaapi"
2224 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2225 mpeg4_vdpau_hwaccel_deps="vdpau"
2226 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2227 vc1_d3d11va_hwaccel_deps="d3d11va"
2228 vc1_d3d11va_hwaccel_select="vc1_decoder"
2229 vc1_d3d11va2_hwaccel_deps="d3d11va"
2230 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2231 vc1_dxva2_hwaccel_deps="dxva2"
2232 vc1_dxva2_hwaccel_select="vc1_decoder"
2233 vc1_mmal_hwaccel_deps="mmal"
2234 vc1_qsv_hwaccel_deps="libmfx"
2235 vc1_vaapi_hwaccel_deps="vaapi"
2236 vc1_vaapi_hwaccel_select="vc1_decoder"
2237 vc1_vdpau_hwaccel_deps="vdpau"
2238 vc1_vdpau_hwaccel_select="vc1_decoder"
2239 vp8_qsv_hwaccel_deps="libmfx"
2240 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2241 vp8_vaapi_hwaccel_select="vp8_decoder"
2242 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2243 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2244 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2245 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2246 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2247
2248 # hardware-accelerated codecs
2249 nvenc_deps_any="libdl LoadLibrary"
2250 omx_deps="libdl pthreads"
2251 omx_rpi_select="omx"
2252 qsv_deps="libmfx"
2253 qsvdec_select="qsv"
2254 qsvenc_select="qsv"
2255 qsvvpp_select="qsv"
2256 vaapi_encode_deps="vaapi"
2257
2258 hwupload_cuda_filter_deps="cuda"
2259 scale_npp_filter_deps="cuda libnpp"
2260
2261 h264_mmal_decoder_deps="mmal"
2262 h264_nvenc_encoder_deps="nvenc"
2263 h264_omx_encoder_deps="omx"
2264 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2265 h264_qsv_encoder_select="qsvenc"
2266 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2267 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2268 hevc_nvenc_encoder_deps="nvenc"
2269 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2270 hevc_qsv_encoder_select="hevcparse qsvenc"
2271 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2272 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2273 mjpeg_qsv_encoder_deps="libmfx"
2274 mjpeg_qsv_encoder_select="qsvenc"
2275 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2276 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2277 mpeg2_mmal_decoder_deps="mmal"
2278 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2279 mpeg2_qsv_encoder_select="qsvenc"
2280 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2281 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2282 mpeg4_omx_encoder_deps="omx"
2283 vc1_mmal_decoder_deps="mmal"
2284 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2285 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2286 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2287 vp8_vaapi_encoder_select="vaapi_encode"
2288 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2289 vp9_vaapi_encoder_select="vaapi_encode"
2290
2291 nvenc_h264_encoder_select="h264_nvenc_encoder"
2292 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2293
2294 # parsers
2295 aac_parser_select="adts_header"
2296 h264_parser_select="golomb h264dsp h264parse"
2297 hevc_parser_select="hevcparse"
2298 mpegaudio_parser_select="mpegaudioheader"
2299 mpegvideo_parser_select="mpegvideo"
2300 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2301 vc1_parser_select="vc1dsp"
2302
2303 # bitstream_filters
2304 aac_adtstoasc_bsf_select="adts_header"
2305 h264_metadata_bsf_select="cbs_h264"
2306 h264_redundant_pps_bsf_select="cbs_h264"
2307 hevc_metadata_bsf_select="cbs_h265"
2308 mjpeg2jpeg_bsf_select="jpegtables"
2309 mpeg2_metadata_bsf_select="cbs_mpeg2"
2310 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2311
2312 # external libraries
2313 avisynth_deps="LoadLibrary"
2314 avxsynth_deps="libdl"
2315 avisynth_demuxer_deps_any="avisynth avxsynth"
2316 avisynth_demuxer_select="riffdec"
2317 libdcadec_decoder_deps="libdcadec"
2318 libfaac_encoder_deps="libfaac"
2319 libfaac_encoder_select="audio_frame_queue"
2320 libfdk_aac_decoder_deps="libfdk_aac"
2321 libfdk_aac_encoder_deps="libfdk_aac"
2322 libfdk_aac_encoder_select="audio_frame_queue"
2323 libgsm_decoder_deps="libgsm"
2324 libgsm_encoder_deps="libgsm"
2325 libgsm_ms_decoder_deps="libgsm"
2326 libgsm_ms_encoder_deps="libgsm"
2327 libilbc_decoder_deps="libilbc"
2328 libilbc_encoder_deps="libilbc"
2329 libkvazaar_encoder_deps="libkvazaar"
2330 libmp3lame_encoder_deps="libmp3lame"
2331 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2332 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2333 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2334 libopencore_amrnb_encoder_select="audio_frame_queue"
2335 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2336 libopenh264_decoder_deps="libopenh264"
2337 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2338 libopenh264_encoder_deps="libopenh264"
2339 libopenjpeg_decoder_deps="libopenjpeg"
2340 libopenjpeg_encoder_deps="libopenjpeg"
2341 libopus_decoder_deps="libopus"
2342 libopus_encoder_deps="libopus"
2343 libopus_encoder_select="audio_frame_queue"
2344 libschroedinger_decoder_deps="libschroedinger"
2345 libschroedinger_encoder_deps="libschroedinger"
2346 libspeex_decoder_deps="libspeex"
2347 libspeex_encoder_deps="libspeex"
2348 libspeex_encoder_select="audio_frame_queue"
2349 libtheora_encoder_deps="libtheora"
2350 libtwolame_encoder_deps="libtwolame"
2351 libvo_aacenc_encoder_deps="libvo_aacenc"
2352 libvo_aacenc_encoder_select="audio_frame_queue"
2353 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2354 libvorbis_encoder_deps="libvorbis"
2355 libvorbis_encoder_select="audio_frame_queue"
2356 libvpx_vp8_decoder_deps="libvpx"
2357 libvpx_vp8_encoder_deps="libvpx"
2358 libvpx_vp9_decoder_deps="libvpx"
2359 libvpx_vp9_encoder_deps="libvpx"
2360 libwavpack_encoder_deps="libwavpack"
2361 libwavpack_encoder_select="audio_frame_queue"
2362 libwebp_encoder_deps="libwebp"
2363 libx262_encoder_deps="libx262"
2364 libx264_encoder_deps="libx264"
2365 libx265_encoder_deps="libx265"
2366 libxavs_encoder_deps="libxavs"
2367 libxvid_encoder_deps="libxvid mkstemp"
2368
2369 # demuxers / muxers
2370 ac3_demuxer_select="ac3_parser"
2371 asf_demuxer_select="riffdec"
2372 asf_muxer_select="riffenc"
2373 asf_stream_muxer_select="asf_muxer"
2374 avi_demuxer_select="iso_media riffdec"
2375 avi_muxer_select="riffenc"
2376 caf_demuxer_select="iso_media riffdec"
2377 dash_muxer_select="mp4_muxer"
2378 dirac_demuxer_select="dirac_parser"
2379 dv_demuxer_select="dvprofile"
2380 dv_muxer_select="dvprofile"
2381 dxa_demuxer_select="riffdec"
2382 eac3_demuxer_select="ac3_parser"
2383 f4v_muxer_select="mov_muxer"
2384 flac_demuxer_select="flac_parser"
2385 hds_muxer_select="flv_muxer"
2386 hls_muxer_select="mpegts_muxer"
2387 ipod_muxer_select="mov_muxer"
2388 ismv_muxer_select="mov_muxer"
2389 matroska_audio_muxer_select="matroska_muxer"
2390 matroska_demuxer_select="iso_media riffdec"
2391 matroska_demuxer_suggest="bzlib lzo zlib"
2392 matroska_muxer_select="iso_media riffenc"
2393 mmf_muxer_select="riffenc"
2394 mov_demuxer_select="iso_media riffdec"
2395 mov_demuxer_suggest="zlib"
2396 mov_muxer_select="iso_media riffenc rtpenc_chain"
2397 mp3_demuxer_select="mpegaudio_parser"
2398 mp3_muxer_select="mpegaudioheader"
2399 mp4_muxer_select="mov_muxer"
2400 mpegts_demuxer_select="iso_media"
2401 mpegts_muxer_select="adts_muxer latm_muxer"
2402 mpegtsraw_demuxer_select="mpegts_demuxer"
2403 mxf_d10_muxer_select="mxf_muxer"
2404 nut_muxer_select="riffenc"
2405 nuv_demuxer_select="riffdec"
2406 oga_muxer_select="ogg_muxer"
2407 ogg_demuxer_select="dirac_parse"
2408 opus_muxer_select="ogg_muxer"
2409 psp_muxer_select="mov_muxer"
2410 rtp_demuxer_select="sdp_demuxer"
2411 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2412 rtsp_demuxer_select="http_protocol rtpdec"
2413 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2414 sap_demuxer_select="sdp_demuxer"
2415 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2416 sdp_demuxer_select="rtpdec"
2417 smoothstreaming_muxer_select="ismv_muxer"
2418 spdif_demuxer_select="adts_header"
2419 spdif_muxer_select="adts_header"
2420 spx_muxer_select="ogg_muxer"
2421 swf_demuxer_suggest="zlib"
2422 tak_demuxer_select="tak_parser"
2423 tg2_muxer_select="mov_muxer"
2424 tgp_muxer_select="mov_muxer"
2425 w64_demuxer_select="wav_demuxer"
2426 wav_demuxer_select="riffdec"
2427 wav_muxer_select="riffenc"
2428 webm_muxer_select="iso_media riffenc"
2429 wtv_demuxer_select="mpegts_demuxer riffdec"
2430 xmv_demuxer_select="riffdec"
2431 xwma_demuxer_select="riffdec"
2432
2433 # indevs
2434 alsa_indev_deps="alsa"
2435 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2436 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2437 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2438 fbdev_indev_deps="linux_fb_h"
2439 jack_indev_deps="libjack"
2440 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2441 libcdio_indev_deps="libcdio"
2442 libdc1394_indev_deps="libdc1394"
2443 oss_indev_deps_any="sys_soundcard_h"
2444 pulse_indev_deps="libpulse"
2445 sndio_indev_deps="sndio"
2446 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2447 vfwcap_indev_deps="vfw32 vfwcap_defines"
2448 xcbgrab_indev_deps="libxcb libxcb_shape"
2449 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2450
2451 # protocols
2452 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2453 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2454 ffrtmpcrypt_protocol_select="tcp_protocol"
2455 ffrtmphttp_protocol_conflict="librtmp_protocol"
2456 ffrtmphttp_protocol_select="http_protocol"
2457 gopher_protocol_select="network"
2458 http_protocol_select="tcp_protocol"
2459 http_protocol_suggest="zlib"
2460 httpproxy_protocol_select="tcp_protocol"
2461 httpproxy_protocol_suggest="zlib"
2462 https_protocol_select="tls_protocol"
2463 https_protocol_suggest="zlib"
2464 icecast_protocol_select="http_protocol"
2465 librtmp_protocol_deps="librtmp"
2466 librtmpe_protocol_deps="librtmp"
2467 librtmps_protocol_deps="librtmp"
2468 librtmpt_protocol_deps="librtmp"
2469 librtmpte_protocol_deps="librtmp"
2470 mmsh_protocol_select="http_protocol"
2471 mmst_protocol_select="network"
2472 rtmp_protocol_conflict="librtmp_protocol"
2473 rtmp_protocol_select="tcp_protocol"
2474 rtmp_protocol_suggest="zlib"
2475 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2476 rtmpe_protocol_suggest="zlib"
2477 rtmps_protocol_conflict="librtmp_protocol"
2478 rtmps_protocol_select="tls_protocol"
2479 rtmps_protocol_suggest="zlib"
2480 rtmpt_protocol_select="ffrtmphttp_protocol"
2481 rtmpt_protocol_suggest="zlib"
2482 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2483 rtmpte_protocol_suggest="zlib"
2484 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2485 rtmpts_protocol_suggest="zlib"
2486 rtp_protocol_select="udp_protocol"
2487 sctp_protocol_deps="struct_sctp_event_subscribe"
2488 sctp_protocol_select="network"
2489 srtp_protocol_select="rtp_protocol srtp"
2490 tcp_protocol_select="network"
2491 tls_protocol_deps_any="gnutls openssl"
2492 tls_protocol_select="tcp_protocol"
2493 udp_protocol_select="network"
2494 unix_protocol_deps="sys_un_h"
2495 unix_protocol_select="network"
2496
2497 # filters
2498 asyncts_filter_deps="avresample"
2499 blackframe_filter_deps="gpl"
2500 boxblur_filter_deps="gpl"
2501 bs2b_filter_deps="libbs2b"
2502 cropdetect_filter_deps="gpl"
2503 deinterlace_qsv_filter_deps="libmfx"
2504 deinterlace_vaapi_filter_deps="vaapi"
2505 delogo_filter_deps="gpl"
2506 drawtext_filter_deps="libfreetype"
2507 drawtext_filter_suggest="libfontconfig"
2508 frei0r_filter_deps="frei0r libdl"
2509 frei0r_src_filter_deps="frei0r libdl"
2510 hdcd_filter_deps="libhdcd"
2511 hqdn3d_filter_deps="gpl"
2512 interlace_filter_deps="gpl"
2513 movie_filter_deps="avcodec avformat"
2514 ocv_filter_deps="libopencv"
2515 overlay_qsv_filter_deps="libmfx"
2516 overlay_qsv_filter_select="qsvvpp"
2517 resample_filter_deps="avresample"
2518 scale_filter_deps="swscale"
2519 scale_qsv_filter_deps="libmfx"
2520 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2521 vpp_qsv_filter_deps="libmfx"
2522 vpp_qsv_filter_select="qsvvpp"
2523
2524 # examples
2525 decode_audio_example_deps="avcodec avutil"
2526 decode_video_example_deps="avcodec avutil"
2527 encode_audio_example_deps="avcodec avutil"
2528 encode_video_example_deps="avcodec avutil"
2529 filter_audio_example_deps="avfilter avutil"
2530 metadata_example_deps="avformat avutil"
2531 output_example_deps="avcodec avformat avresample avutil swscale"
2532 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2533 transcode_aac_example_deps="avcodec avformat avresample"
2534
2535 # EXTRALIBS_LIST
2536 cpu_init_extralibs="pthreads_extralibs"
2537 cws2fws_extralibs="zlib_extralibs"
2538
2539 # libraries, in linking order
2540 avcodec_deps="avutil"
2541 avcodec_select="null_bsf"
2542 avdevice_deps="avformat avcodec avutil"
2543 avfilter_deps="avutil"
2544 avformat_deps="avcodec avutil"
2545 avformat_suggest="network"
2546 avresample_deps="avutil"
2547 swscale_deps="avutil"
2548
2549 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2550 avdevice_extralibs="libm_extralibs"
2551 avformat_extralibs="libm_extralibs"
2552 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2553 avresample_extralibs="libm_extralibs"
2554 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"
2555 swscale_extralibs="libm_extralibs"
2556
2557 # programs
2558 avconv_deps="avcodec avfilter avformat avresample swscale"
2559 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2560 fps_filter null_filter resample_filter scale_filter
2561 trim_filter"
2562 avconv_suggest="psapi shell32"
2563 avplay_deps="avcodec avfilter avformat avresample sdl"
2564 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2565 avplay_suggest="shell32"
2566 avprobe_deps="avcodec avformat"
2567 avprobe_suggest="shell32"
2568
2569 # documentation
2570 pod2man_deps="doc"
2571 texi2html_deps="doc"
2572
2573 # default parameters
2574
2575 logfile="avbuild/config.log"
2576
2577 # installation paths
2578 prefix_default="/usr/local"
2579 bindir_default='${prefix}/bin'
2580 datadir_default='${prefix}/share/avconv'
2581 docdir_default='${prefix}/share/doc/libav'
2582 incdir_default='${prefix}/include'
2583 libdir_default='${prefix}/lib'
2584 mandir_default='${prefix}/share/man'
2585 shlibdir_default="$libdir_default"
2586
2587 # toolchain
2588 ar_default="ar"
2589 cc_default="gcc"
2590 host_cc_default="gcc"
2591 x86asmexe_default="nasm"
2592 ln_s="ln -s -f"
2593 nm_default="nm -g"
2594 pkg_config_default=pkg-config
2595 ranlib="ranlib"
2596 strip="strip"
2597 version_script='--version-script'
2598
2599 # machine
2600 arch_default=$(uname -m)
2601 cpu="generic"
2602 intrinsics="none"
2603
2604 # OS
2605 target_os_default=$(tolower $(uname -s))
2606 host_os=$target_os_default
2607
2608 # configurable options
2609 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2610
2611 enable asm
2612 enable debug
2613 enable doc
2614 enable faan faandct faanidct
2615 enable optimizations
2616 enable safe_bitstream_reader
2617 enable static
2618 enable swscale_alpha
2619 enable valgrind_backtrace
2620
2621 # By default, enable only those hwaccels that have no external dependencies.
2622 enable d3d11va dxva2 vda vdpau
2623
2624 # internal components are enabled by default
2625 enable $EXTRALIBS_LIST
2626
2627 # Avoid external, non-system, libraries getting enabled by dependency resolution
2628 disable $EXTERNAL_LIBRARY_LIST
2629
2630 # build settings
2631 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2632 LIBPREF="lib"
2633 LIBSUF=".a"
2634 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2635 SLIBPREF="lib"
2636 SLIBSUF=".so"
2637 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2638 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2639 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2640 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2641 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2642 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2643 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2644
2645 asflags_filter=echo
2646 cflags_filter=echo
2647 ldflags_filter=echo
2648
2649 AS_C='-c'
2650 AS_O='-o $@'
2651 CC_C='-c'
2652 CC_E='-E -o $@'
2653 CC_O='-o $@'
2654 OBJCC_C='-c'
2655 OBJCC_E='-E -o $@'
2656 OBJCC_O='-o $@'
2657 X86ASM_O='-o $@'
2658 LD_O='-o $@'
2659 LD_LIB='-l%'
2660 LD_PATH='-L'
2661 HOSTCC_C='-c'
2662 HOSTCC_E='-E -o $@'
2663 HOSTCC_O='-o $@'
2664 HOSTLD_O='-o $@'
2665
2666 host_extralibs='-lm'
2667 host_cflags_filter=echo
2668 host_ldflags_filter=echo
2669
2670 target_path='$(CURDIR)'
2671
2672 # since the object filename is not given with the -MM flag, the compiler
2673 # is only able to print the basename, and we must add the path ourselves
2674 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2675 DEPFLAGS='-MM'
2676
2677 mkdir -p avbuild
2678
2679 # find source path
2680 if test -f configure; then
2681 source_path=.
2682 else
2683 source_path=$(cd $(dirname "$0"); pwd)
2684 echo "$source_path" | grep -q '[[:blank:]]' &&
2685 die "Out of tree builds are impossible with whitespace in source path."
2686 test -e "$source_path/config.h" &&
2687 die "Out of tree builds are impossible with config.h in source dir."
2688 fi
2689
2690 for v in "$@"; do
2691 r=${v#*=}
2692 l=${v%"$r"}
2693 r=$(sh_quote "$r")
2694 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2695 done
2696
2697 find_things(){
2698 thing=$1
2699 pattern=$2
2700 file=$source_path/$3
2701 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2702 }
2703
2704 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2705 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2706 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2707 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2708 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2709 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2710 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2711 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2712
2713 find_things_extern(){
2714 thing=$1
2715 pattern=$2
2716 file=$source_path/$3
2717 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2718 }
2719
2720 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2721 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2722
2723 AVCODEC_COMPONENTS_LIST="
2724 $BSF_LIST
2725 $DECODER_LIST
2726 $ENCODER_LIST
2727 $HWACCEL_LIST
2728 $PARSER_LIST
2729 "
2730
2731 AVDEVICE_COMPONENTS_LIST="
2732 $INDEV_LIST
2733 "
2734
2735 AVFILTER_COMPONENTS_LIST="
2736 $FILTER_LIST
2737 "
2738
2739 AVFORMAT_COMPONENTS_LIST="
2740 $DEMUXER_LIST
2741 $MUXER_LIST
2742 $PROTOCOL_LIST
2743 "
2744
2745 ALL_COMPONENTS="
2746 $AVCODEC_COMPONENTS_LIST
2747 $AVDEVICE_COMPONENTS_LIST
2748 $AVFILTER_COMPONENTS_LIST
2749 $AVFORMAT_COMPONENTS_LIST
2750 "
2751
2752 for n in $COMPONENT_LIST; do
2753 v=$(toupper ${n%s})_LIST
2754 eval enable \$$v
2755 eval ${n}_if_any="\$$v"
2756 done
2757
2758 enable $ARCH_EXT_LIST
2759
2760 die_unknown(){
2761 echo "Unknown option \"$1\"."
2762 echo "See $0 --help for available options."
2763 exit 1
2764 }
2765
2766 print_3_columns() {
2767 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2768 }
2769
2770 show_list() {
2771 suffix=_$1
2772 shift
2773 echo $* | sed s/$suffix//g | print_3_columns
2774 exit 0
2775 }
2776
2777 for opt do
2778 optval="${opt#*=}"
2779 case "$opt" in
2780 --extra-ldflags=*)
2781 add_ldflags $optval
2782 ;;
2783 --extra-ldexeflags=*)
2784 add_ldexeflags $optval
2785 ;;
2786 --extra-ldsoflags=*)
2787 add_ldsoflags $optval
2788 ;;
2789 --extra-libs=*)
2790 add_extralibs $optval
2791 ;;
2792 --disable-devices)
2793 disable $INDEV_LIST
2794 ;;
2795 --enable-debug=*)
2796 debuglevel="$optval"
2797 ;;
2798 --disable-programs)
2799 disable $PROGRAM_LIST
2800 ;;
2801 --disable-everything)
2802 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2803 ;;
2804 --disable-all)
2805 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2806 disable $LIBRARY_LIST $PROGRAM_LIST doc
2807 ;;
2808 --enable-*=*|--disable-*=*)
2809 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2810 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2811 eval list=\$$(toupper $thing)_LIST
2812 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2813 $action $(filter "$name" $list)
2814 ;;
2815 --enable-yasm|--disable-yasm)
2816 warn "The ${opt} option is only provided for compatibility and will be\n"\
2817 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2818 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2819 ;;
2820 --enable-?*|--disable-?*)
2821 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2822 if is_in $option $COMPONENT_LIST; then
2823 test $action = disable && action=unset
2824 eval $action \$$(toupper ${option%s})_LIST
2825 elif is_in $option $CMDLINE_SELECT; then
2826 $action $option
2827 else
2828 die_unknown $opt
2829 fi
2830 ;;
2831 --list-*)
2832 NAME="${opt#--list-}"
2833 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2834 NAME=${NAME%s}
2835 eval show_list $NAME \$$(toupper $NAME)_LIST
2836 ;;
2837 --help|-h) show_help
2838 ;;
2839 --quiet|-q) quiet=yes
2840 ;;
2841 *)
2842 optname="${opt%%=*}"
2843 optname="${optname#--}"
2844 optname=$(echo "$optname" | sed 's/-/_/g')
2845 if is_in $optname $CMDLINE_SET; then
2846 eval $optname='$optval'
2847 elif is_in $optname $CMDLINE_APPEND; then
2848 append $optname "$optval"
2849 else
2850 die_unknown $opt
2851 fi
2852 ;;
2853 esac
2854 done
2855
2856 for e in $env; do
2857 eval "export $e"
2858 done
2859
2860 disabled logging && logfile=/dev/null
2861
2862 # command line configuration sanity checks
2863
2864 # we need to build at least one lib type
2865 if ! enabled_any static shared; then
2866 cat <<EOF
2867 At least one library type must be built.
2868 Specify --enable-static to build the static libraries or --enable-shared to
2869 build the shared libraries as well. To only build the shared libraries specify
2870 --disable-static in addition to --enable-shared.
2871 EOF
2872 exit 1
2873 fi
2874
2875 # Die early if licensing-related configure options are incompatible.
2876 die_license_disabled() {
2877 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2878 }
2879
2880 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2881 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2882 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2883
2884 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2885
2886 enabled_all gnutls openssl &&
2887 die "GnuTLS and OpenSSL must not be enabled at the same time."
2888
2889 # Disable all the library-specific components if the library itself
2890 # is disabled, see AVCODEC_LIST and following _LIST variables.
2891
2892 disable_components(){
2893 disabled ${1} && disable $(
2894 eval components="\$$(toupper ${1})_COMPONENTS"
2895 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2896 )
2897 }
2898
2899 map 'disable_components $v' $LIBRARY_LIST
2900
2901 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2902 set >> $logfile
2903
2904 case "$toolchain" in
2905 *-asan)
2906 cc_default="${toolchain%-asan}"
2907 add_cflags -fsanitize=address
2908 add_ldflags -fsanitize=address
2909 ;;
2910 *-msan)
2911 cc_default="${toolchain%-msan}"
2912 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2913 add_ldflags -fsanitize=memory
2914 ;;
2915 *-tsan)
2916 cc_default="${toolchain%-tsan}"
2917 add_cflags -fsanitize=thread -fPIE
2918 add_ldflags -fsanitize=thread -pie
2919 case "$toolchain" in
2920 gcc-tsan)
2921 add_cflags -fPIC
2922 add_ldflags -fPIC
2923 ;;
2924 esac
2925 ;;
2926 *-usan)
2927 cc_default="${toolchain%-usan}"
2928 add_cflags -fsanitize=undefined
2929 add_ldflags -fsanitize=undefined
2930 case "$toolchain" in
2931 clang-usan)
2932 add_cflags -O1
2933 ;;
2934 esac
2935 ;;
2936 valgrind-*)
2937 target_exec_default="valgrind"
2938 case "$toolchain" in
2939 valgrind-massif)
2940 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2941 ;;
2942 valgrind-memcheck)
2943 target_exec_args="--track-origins=yes --leak-check=full"
2944 ;;
2945 esac
2946 ;;
2947 msvc)
2948 # Check whether the current MSVC version needs the C99 converter.
2949 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2950 # support enough of C99 to build libav. Default to the new
2951 # behaviour if the regexp was unable to match anything, since this
2952 # successfully parses the version number of existing supported
2953 # versions that require the converter (MSVC 2010 and 2012).
2954 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2955 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2956 cc_default="cl"
2957 else
2958 cc_default="c99wrap cl"
2959 fi
2960 ld_default="$source_path/compat/windows/mslink"
2961 nm_default="dumpbin -symbols"
2962 ar_default="lib"
2963 case "$arch" in
2964 aarch64|arm64)
2965 as_default="armasm64"
2966 ;;
2967 arm*)
2968 as_default="armasm"
2969 ;;
2970 esac
2971 target_os_default="win32"
2972 # Use a relative path for TMPDIR. This makes sure all the
2973 # ffconf temp files are written with a relative path, avoiding
2974 # issues with msys/win32 path conversion for MSVC parameters
2975 # such as -Fo<file> or -out:<file>.
2976 TMPDIR=.
2977 ;;
2978 icl)
2979 cc_default="icl"
2980 ld_default="xilink"
2981 nm_default="dumpbin -symbols"
2982 ar_default="xilib"
2983 target_os_default="win32"
2984 TMPDIR=.
2985 ;;
2986 gcov)
2987 add_cflags -fprofile-arcs -ftest-coverage
2988 add_ldflags -fprofile-arcs -ftest-coverage
2989 ;;
2990 llvm-cov)
2991 add_cflags -fprofile-arcs -ftest-coverage
2992 add_ldflags --coverage
2993 ;;
2994 hardened)
2995 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2996 add_cflags -fno-strict-overflow -fstack-protector-all
2997 add_ldflags -Wl,-z,relro -Wl,-z,now
2998 ;;
2999 ?*)
3000 die "Unknown toolchain $toolchain"
3001 ;;
3002 esac
3003
3004 if test -n "$cross_prefix"; then
3005 test -n "$arch" && test -n "$target_os" ||
3006 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3007 enable cross_compile
3008 fi
3009
3010 ar_default="${cross_prefix}${ar_default}"
3011 cc_default="${cross_prefix}${cc_default}"
3012 objcc_default="${cross_prefix}${objcc_default}"
3013 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3014 nm_default="${cross_prefix}${nm_default}"
3015 pkg_config_default="${cross_prefix}${pkg_config_default}"
3016 ranlib="${cross_prefix}${ranlib}"
3017 strip="${cross_prefix}${strip}"
3018
3019 sysinclude_default="${sysroot}/usr/include"
3020
3021 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3022 enabled cross_compile || host_cc_default=$cc
3023 set_default host_cc
3024
3025 if ! $pkg_config --version >/dev/null 2>&1; then
3026 warn "$pkg_config not found, library detection may fail."
3027 pkg_config=false
3028 fi
3029
3030 exesuf() {
3031 case $1 in
3032 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3033 esac
3034 }
3035
3036 EXESUF=$(exesuf $target_os)
3037 HOSTEXESUF=$(exesuf $host_os)
3038
3039 # set temporary file name
3040 : ${TMPDIR:=$TEMPDIR}
3041 : ${TMPDIR:=$TMP}
3042 : ${TMPDIR:=/tmp}
3043
3044 if ! check_cmd mktemp -u XXXXXX; then
3045 # simple replacement for missing mktemp
3046 # NOT SAFE FOR GENERAL USE
3047 mktemp(){
3048 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3049 echo "$tmpname"
3050 mkdir "$tmpname"
3051 }
3052 fi
3053
3054 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3055 die "Unable to create temporary directory in $TMPDIR."
3056
3057 tmpfile(){
3058 tmp="${AVTMPDIR}/test"$2
3059 (set -C; exec > $tmp) 2> /dev/null ||
3060 die "Unable to create temporary file in $AVTMPDIR."
3061 eval $1=$tmp
3062 }
3063
3064 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3065 trap 'exit 2' INT
3066
3067 tmpfile TMPASM .asm
3068 tmpfile TMPC .c
3069 tmpfile TMPE $EXESUF
3070 tmpfile TMPH .h
3071 tmpfile TMPO .o
3072 tmpfile TMPS .S
3073 tmpfile TMPSH .sh
3074 tmpfile TMPV .ver
3075
3076 unset -f mktemp
3077
3078 chmod +x $TMPE
3079
3080 # make sure we can execute files in $TMPDIR
3081 cat > $TMPSH 2>> $logfile <<EOF
3082 #! /bin/sh
3083 EOF
3084 chmod +x $TMPSH >> $logfile 2>&1
3085 if ! $TMPSH >> $logfile 2>&1; then
3086 cat <<EOF
3087 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3088 variable to another directory and make sure that it is not mounted noexec.
3089 EOF
3090 die "Sanity test failed."
3091 fi
3092
3093 armasm_flags(){
3094 for flag; do
3095 case $flag in
3096 # Filter out MSVC cl.exe options from cflags that shouldn't
3097 # be passed to gas-preprocessor
3098 -M[TD]*) ;;
3099 *) echo $flag ;;
3100 esac
3101 done
3102 }
3103
3104 cparser_flags(){
3105 for flag; do
3106 case $flag in
3107 -Wno-switch) echo -Wno-switch-enum ;;
3108 -Wno-format-zero-length) ;;
3109 -Wdisabled-optimization) ;;
3110 -Wno-pointer-sign) echo -Wno-other ;;
3111 *) echo $flag ;;
3112 esac
3113 done
3114 }
3115
3116 msvc_common_flags(){
3117 for flag; do
3118 case $flag in
3119 # In addition to specifying certain flags under the compiler
3120 # specific filters, they must be specified here as well or else the
3121 # generic catch all at the bottom will print the original flag.
3122 -Wall) ;;
3123 -Wextra) ;;
3124 -std=c99) ;;
3125 # Common flags
3126 -fomit-frame-pointer) ;;
3127 -g) echo -Z7 ;;
3128 -fno-math-errno) ;;
3129 -fno-common) ;;
3130 -fno-signed-zeros) ;;
3131 -fPIC) ;;
3132 -mthumb) ;;
3133 -march=*) ;;
3134 -lz) echo zlib.lib ;;
3135 -lx264) echo libx264.lib ;;
3136 -l*) echo ${flag#-l}.lib ;;
3137 -L*) echo -libpath:${flag#-L} ;;
3138 *) echo $flag ;;
3139 esac
3140 done
3141 }
3142
3143 msvc_flags(){
3144 msvc_common_flags "$@"
3145 for flag; do
3146 case $flag in
3147 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3148 -wd4554 ;;
3149 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3150 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3151 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3152 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3153 esac
3154 done
3155 }
3156
3157 icl_flags(){
3158 msvc_common_flags "$@"
3159 for flag; do
3160 case $flag in
3161 # Despite what Intel's documentation says -Wall, which is supported
3162 # on Windows, does enable remarks so disable them here.
3163 -Wall) echo $flag -Qdiag-disable:remark ;;
3164 -std=c99) echo -Qstd=c99 ;;
3165 esac
3166 done
3167 }
3168
3169 suncc_flags(){
3170 for flag; do
3171 case $flag in
3172 -march=*|-mcpu=*)
3173 case "${flag#*=}" in
3174 native) echo -xtarget=native ;;
3175 v9|niagara) echo -xarch=sparc ;;
3176 ultrasparc) echo -xarch=sparcvis ;;
3177 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3178 i586|pentium) echo -xchip=pentium ;;
3179 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3180 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3181 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3182 pentium4*) echo -xtarget=pentium4 ;;
3183 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3184 *-sse3) echo -xarch=sse3 ;;
3185 core2) echo -xarch=ssse3 -xchip=core2 ;;
3186 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3187 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3188 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3189 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3190 k8|opteron|athlon64|athlon-fx)
3191 echo -xarch=sse2a ;;
3192 athlon*) echo -xarch=pentium_proa ;;
3193 esac
3194 ;;
3195 -std=c99) echo -xc99 ;;
3196 -fomit-frame-pointer) echo -xregs=frameptr ;;
3197 -fPIC) echo -KPIC -xcode=pic32 ;;
3198 -W*,*) echo $flag ;;
3199 -f*-*|-W*|-mimpure-text) ;;
3200 -shared) echo -G ;;
3201 *) echo $flag ;;
3202 esac
3203 done
3204 }
3205
3206 probe_cc(){
3207 pfx=$1
3208 _cc=$2
3209
3210 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3211 unset _ld_o _ldflags _ld_lib _ld_path
3212 unset _depflags _DEPCMD _DEPFLAGS
3213 _flags_filter=echo
3214
3215 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3216 _type=llvm_gcc
3217 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3218 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3219 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3220 _cflags_speed='-O3'
3221 _cflags_size='-Os'
3222 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3223 _type=gcc
3224 gcc_version=$($_cc --version | head -n1)
3225 gcc_basever=$($_cc -dumpversion)
3226 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3227 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3228 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3229 if ! $_cc -dumpversion | grep -q '^2\.'; then
3230 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3231 fi
3232 _cflags_speed='-O3'
3233 _cflags_size='-Os'
3234 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3235 _type=icc
3236 _ident=$($_cc --version | head -n1)
3237 _depflags='-MMD'
3238 _cflags_speed='-O3'
3239 _cflags_size='-Os'
3240 _cflags_noopt='-O1'
3241 elif $_cc -v 2>&1 | grep -q xlc; then
3242 _type=xlc
3243 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3244 _cflags_speed='-O5'
3245 _cflags_size='-O5 -qcompact'
3246 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3247 test -d "$sysroot" || die "No valid sysroot specified."
3248 _type=armcc
3249 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3250 armcc_conf="$PWD/armcc.conf"
3251 $_cc --arm_linux_configure \
3252 --arm_linux_config_file="$armcc_conf" \
3253 --configure_sysroot="$sysroot" \
3254 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3255 die "Error creating armcc configuration file."
3256 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3257 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3258 as_default="${cross_prefix}gcc"
3259 _depflags='-MMD'
3260 _cflags_speed='-O3'
3261 _cflags_size='-Os'
3262 elif $_cc -v 2>&1 | grep -q clang; then
3263 _type=clang
3264 _ident=$($_cc --version 2>/dev/null | head -n1)
3265 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3266 _cflags_speed='-O3'
3267 _cflags_size='-Os'
3268 elif $_cc -V 2>&1 | grep -q Sun; then
3269 _type=suncc
3270 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3271 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3272 _DEPFLAGS='-xM1 -xc99'
3273 _ldflags='-std=c99'
3274 _cflags_speed='-O5'
3275 _cflags_size='-O5 -xspace'
3276 _flags_filter=suncc_flags
3277 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3278 _type=pathscale
3279 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3280 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3281 _cflags_speed='-O2'
3282 _cflags_size='-Os'
3283 _flags_filter='filter_out -Wdisabled-optimization'
3284 elif $_cc -v 2>&1 | grep -q Open64; then
3285 _type=open64
3286 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3287 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3288 _cflags_speed='-O2'
3289 _cflags_size='-Os'
3290 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3291 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3292 _type=armasm
3293 _ident=$($_cc | head -n1)
3294 # 4509: "This form of conditional instruction is deprecated"
3295 _flags="-nologo -ignore 4509"
3296 _flags_filter=armasm_flags
3297 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3298 _type=msvc
3299 _ident=$($_cc 2>&1 | head -n1)
3300 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3301 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3302 _cflags_speed="-O2"
3303 _cflags_size="-O1"
3304 _cflags_noopt="-O1"
3305 if $_cc -nologo- 2>&1 | grep -q Linker; then
3306 _ld_o='-out:$@'
3307 else
3308 _ld_o='-Fe$@'
3309 fi
3310 _cc_o='-Fo$@'
3311 _cc_e='-P -Fi$@'
3312 _flags_filter=msvc_flags
3313 _ld_lib='lib%.a'
3314 _ld_path='-libpath:'
3315 _flags='-nologo'
3316 elif $_cc 2>&1 | grep -q Intel; then
3317 _type=icl
3318 _ident=$($_cc 2>&1 | head -n1)
3319 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3320 # Not only is O3 broken on 13.x+ but it is slower on all previous
3321 # versions (tested) as well.
3322 _cflags_speed="-O2"
3323 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3324 if $_cc 2>&1 | grep -q Linker; then
3325 _ld_o='-out:$@'
3326 else
3327 _ld_o='-Fe$@'
3328 fi
3329 _cc_o='-Fo$@'
3330 _cc_e='-P'
3331 _flags_filter=icl_flags
3332 _ld_lib='lib%.a'
3333 _ld_path='-libpath:'
3334 # -Qdiag-error to make icl error when seeing certain unknown arguments
3335 _flags='-nologo -Qdiag-error:4044,10157'
3336 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3337 # with MSVC which enables it by default.
3338 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3339 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3340 # lld can emulate multiple different linkers; in ms link.exe mode,
3341 # the -? parameter gives the help output which contains an identifyable
3342 # string, while it gives an error in other modes.
3343 _type=lld-link
3344 # The link.exe mode doesn't have a switch for getting the version,
3345 # but we can force it back to gnu mode and get the version from there.
3346 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3347 _ld_o='-out:$@'
3348 _flags_filter=msvc_flags
3349 _ld_lib='lib%.a'
3350 _ld_path='-libpath:'
3351 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3352 _type=cparser
3353 _ident=$($_cc --version | head -n1)
3354 _depflags='-MMD'
3355 _cflags_speed='-O4'
3356 _cflags_size='-O2'
3357 _flags_filter=cparser_flags
3358 fi
3359
3360 eval ${pfx}_type=\$_type
3361 eval ${pfx}_ident=\$_ident
3362 }
3363
3364 set_ccvars(){
3365 eval ${1}_C=\${_cc_c-\${${1}_C}}
3366 eval ${1}_E=\${_cc_e-\${${1}_E}}
3367 eval ${1}_O=\${_cc_o-\${${1}_O}}
3368
3369 if [ -n "$_depflags" ]; then
3370 eval ${1}_DEPFLAGS=\$_depflags
3371 else
3372 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3373 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3374 eval DEP${1}FLAGS=\$_flags
3375 fi
3376 }
3377
3378 probe_cc cc "$cc"
3379 cflags_filter=$_flags_filter
3380 cflags_speed=$_cflags_speed
3381 cflags_size=$_cflags_size
3382 cflags_noopt=$_cflags_noopt
3383 add_cflags $_flags $_cflags
3384 cc_ldflags=$_ldflags
3385 set_ccvars CC
3386
3387 probe_cc hostcc "$host_cc"
3388 host_cflags_filter=$_flags_filter
3389 host_cflags_speed=$_cflags_speed
3390 add_host_cflags $_flags $_cflags
3391 set_ccvars HOSTCC
3392
3393 test -n "$cc_type" && enable $cc_type ||
3394 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3395
3396 : ${as_default:=$cc}
3397 : ${objcc_default:=$cc}
3398 : ${dep_cc_default:=$cc}
3399 : ${ld_default:=$cc}
3400 : ${host_ld_default:=$host_cc}
3401 set_default ar as objcc dep_cc ld host_ld
3402
3403 probe_cc as "$as"
3404 asflags_filter=$_flags_filter
3405 add_asflags $_flags $_cflags
3406 set_ccvars AS
3407
3408 probe_cc objcc "$objcc"
3409 objcflags_filter=$_flags_filter
3410 add_objcflags $_flags $_cflags
3411 set_ccvars OBJC
3412
3413 probe_cc ld "$ld"
3414 ldflags_filter=$_flags_filter
3415 add_ldflags $_flags $_ldflags
3416 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3417 LD_O=${_ld_o-$LD_O}
3418 LD_LIB=${_ld_lib-$LD_LIB}
3419 LD_PATH=${_ld_path-$LD_PATH}
3420
3421 probe_cc hostld "$host_ld"
3422 host_ldflags_filter=$_flags_filter
3423 add_host_ldflags $_flags $_ldflags
3424 HOSTLD_O=${_ld_o-$HOSTLD_O}
3425
3426 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3427 probe_cc depcc "$dep_cc"
3428 CCDEP=${_DEPCMD:-$DEPCMD}
3429 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3430 DEPCCFLAGS=$_flags
3431 fi
3432
3433 if $ar 2>&1 | grep -q Microsoft; then
3434 arflags="-nologo"
3435 ar_o='-out:$@'
3436 else
3437 arflags="rc"
3438 ar_o='$@'
3439 fi
3440
3441 add_cflags $extra_cflags
3442 add_objcflags $extra_objcflags
3443 add_asflags $extra_cflags
3444
3445 if test -n "$sysroot"; then
3446 case "$cc_type" in
3447 gcc|llvm_gcc|clang)
3448 add_cppflags --sysroot="$sysroot"
3449 add_ldflags --sysroot="$sysroot"
3450 ;;
3451 esac
3452 fi
3453
3454 if test "$cpu" = host; then
3455 enabled cross_compile &&
3456 die "--cpu=host makes no sense when cross-compiling."
3457
3458 case "$cc_type" in
3459 gcc|llvm_gcc)
3460 check_native(){
3461 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3462 sed -n "/cc1.*$1=/{
3463 s/.*$1=\\([^ ]*\\).*/\\1/
3464 p
3465 q
3466 }" $TMPE
3467 }
3468 cpu=$(check_native -march || check_native -mcpu)
3469 ;;
3470 esac
3471
3472 test "${cpu:-host}" = host &&
3473 die "--cpu=host not supported with compiler $cc"
3474 fi
3475
3476 # Deal with common $arch aliases
3477 case "$arch" in
3478 aarch64|arm64)
3479 arch="aarch64"
3480 ;;
3481 arm*)
3482 arch="arm"
3483 ;;
3484 mips*|IP*)
3485 case "$arch" in
3486 *el)
3487 add_cppflags -EL
3488 add_ldflags -EL
3489 ;;
3490 *eb)
3491 add_cppflags -EB
3492 add_ldflags -EB
3493 ;;
3494 esac
3495 arch="mips"
3496 ;;
3497 parisc*|hppa*)
3498 arch="parisc"
3499 ;;
3500 "Power Macintosh"|ppc*|powerpc*)
3501 arch="ppc"
3502 ;;
3503 s390|s390x)
3504 arch="s390"
3505 ;;
3506 sh4|sh)
3507 arch="sh4"
3508 ;;
3509 sun4u|sparc*)
3510 arch="sparc"
3511 ;;
3512 tilegx|tile-gx)
3513 arch="tilegx"
3514 ;;
3515 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3516 arch="x86"
3517 ;;
3518 esac
3519
3520 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3521 enable $arch
3522
3523 # Add processor-specific flags
3524 if enabled aarch64; then
3525
3526 case $cpu in
3527 armv*)
3528 cpuflags="-march=$cpu"
3529 ;;
3530 *)
3531 cpuflags="-mcpu=$cpu"
3532 ;;
3533 esac
3534
3535 elif enabled alpha; then
3536
3537 cpuflags="-mcpu=$cpu"
3538
3539 elif enabled arm; then
3540
3541 check_arm_arch() {
3542 check_cpp_condition stddef.h \
3543 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3544 $cpuflags
3545 }
3546
3547 probe_arm_arch() {
3548 if check_arm_arch 4; then echo armv4
3549 elif check_arm_arch 4T; then echo armv4t
3550 elif check_arm_arch 5; then echo armv5
3551 elif check_arm_arch 5E; then echo armv5e
3552 elif check_arm_arch 5T; then echo armv5t
3553 elif check_arm_arch 5TE; then echo armv5te
3554 elif check_arm_arch 5TEJ; then echo armv5te
3555 elif check_arm_arch 6; then echo armv6
3556 elif check_arm_arch 6J; then echo armv6j
3557 elif check_arm_arch 6K; then echo armv6k
3558 elif check_arm_arch 6Z; then echo armv6z
3559 elif check_arm_arch 6ZK; then echo armv6zk
3560 elif check_arm_arch 6T2; then echo armv6t2
3561 elif check_arm_arch 7; then echo armv7
3562 elif check_arm_arch 7A 7_A; then echo armv7-a
3563 elif check_arm_arch 7S; then echo armv7-a
3564 elif check_arm_arch 7R 7_R; then echo armv7-r
3565 elif check_arm_arch 7M 7_M; then echo armv7-m
3566 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3567 elif check_arm_arch 8A 8_A; then echo armv8-a
3568 fi
3569 }
3570
3571 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3572
3573 case $cpu in
3574 armv*)
3575 cpuflags="-march=$cpu"
3576 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3577 ;;
3578 *)
3579 cpuflags="-mcpu=$cpu"
3580 case $cpu in
3581 cortex-a*) subarch=armv7a ;;
3582 cortex-r*) subarch=armv7r ;;
3583 cortex-m*) enable thumb; subarch=armv7m ;;
3584 arm11*) subarch=armv6 ;;
3585 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3586 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3587 *) subarch=$(probe_arm_arch) ;;
3588 esac
3589 ;;
3590 esac
3591
3592 case "$subarch" in
3593 armv5t*) enable fast_clz ;;
3594 armv[6-8]*) enable fast_clz fast_unaligned ;;
3595 esac
3596
3597 elif enabled avr32; then
3598
3599 case $cpu in
3600 ap7[02]0[0-2])
3601 subarch="avr32_ap"
3602 cpuflags="-mpart=$cpu"
3603 ;;
3604 ap)
3605 subarch="avr32_ap"
3606 cpuflags="-march=$cpu"
3607 ;;
3608 uc3[ab]*)
3609 subarch="avr32_uc"
3610 cpuflags="-mcpu=$cpu"
3611 ;;
3612 uc)
3613 subarch="avr32_uc"
3614 cpuflags="-march=$cpu"
3615 ;;
3616 esac
3617
3618 elif enabled bfin; then
3619
3620 cpuflags="-mcpu=$cpu"
3621
3622 elif enabled mips; then
3623
3624 cpuflags="-march=$cpu"
3625
3626 elif enabled ppc; then
3627
3628 disable ldbrx
3629
3630 case $(tolower $cpu) in
3631 601|ppc601|powerpc601)
3632 cpuflags="-mcpu=601"
3633 disable altivec
3634 ;;
3635 603*|ppc603*|powerpc603*)
3636 cpuflags="-mcpu=603"
3637 disable altivec
3638 ;;
3639 604*|ppc604*|powerpc604*)
3640 cpuflags="-mcpu=604"
3641 disable altivec
3642 ;;
3643 g3|75*|ppc75*|powerpc75*)
3644 cpuflags="-mcpu=750"
3645 disable altivec
3646 ;;
3647 g4|745*|ppc745*|powerpc745*)
3648 cpuflags="-mcpu=7450"
3649 disable vsx
3650 ;;
3651 74*|ppc74*|powerpc74*)
3652 cpuflags="-mcpu=7400"
3653 disable vsx
3654 ;;
3655 g5|970|ppc970|powerpc970)
3656 cpuflags="-mcpu=970"
3657 disable vsx
3658 ;;
3659 power[3-6]*)
3660 cpuflags="-mcpu=$cpu"
3661 disable vsx
3662 ;;
3663 power[7-8]*)
3664 cpuflags="-mcpu=$cpu"
3665 enable ldbrx
3666 ;;
3667 cell)
3668 cpuflags="-mcpu=cell"
3669 enable ldbrx
3670 disable vsx
3671 ;;
3672 e500mc)
3673 cpuflags="-mcpu=e500mc"
3674 disable altivec
3675 ;;
3676 e500v2)
3677 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3678 disable altivec
3679 disable dcbzl
3680 ;;
3681 e500)
3682 cpuflags="-mcpu=8540 -mhard-float"
3683 disable altivec
3684 disable dcbzl
3685 ;;
3686 esac
3687
3688 elif enabled sparc; then
3689
3690 case $cpu in
3691 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3692 cpuflags="-mcpu=$cpu"
3693 ;;
3694 ultrasparc*|niagara[234])
3695 cpuflags="-mcpu=$cpu"
3696 ;;
3697 esac
3698
3699 elif enabled x86; then
3700
3701 case $cpu in
3702 i[345]86|pentium)
3703 cpuflags="-march=$cpu"
3704 disable i686
3705 disable mmx
3706 ;;
3707 # targets that do NOT support nopl and conditional mov (cmov)
3708 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3709 cpuflags="-march=$cpu"
3710 disable i686
3711 ;;
3712 # targets that do support nopl and conditional mov (cmov)
3713 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3714 cpuflags="-march=$cpu"
3715 enable i686
3716 enable fast_cmov
3717 ;;
3718 # targets that do support conditional mov but on which it's slow
3719 pentium4|pentium4m|prescott|nocona)
3720 cpuflags="-march=$cpu"
3721 enable i686
3722 disable fast_cmov
3723 ;;
3724 esac
3725
3726 fi
3727
3728 if [ "$cpu" != generic ]; then
3729 add_cflags $cpuflags
3730 add_asflags $cpuflags
3731 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3732 fi
3733
3734 # compiler sanity check
3735 check_exec <<EOF
3736 int main(void){ return 0; }
3737 EOF
3738 if test "$?" != 0; then
3739 echo "$cc is unable to create an executable file."
3740 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3741 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3742 echo "Only do this if you know what cross compiling means."
3743 fi
3744 die "C compiler test failed."
3745 fi
3746
3747 add_cppflags -D_ISOC99_SOURCE
3748
3749 # some compilers silently accept -std=c11, so we also need to check that the
3750 # version macro is defined properly
3751 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3752 add_cflags -std=c11 ||
3753 check_cflags -std=c99
3754
3755 check_cppflags -D_FILE_OFFSET_BITS=64
3756 check_cppflags -D_LARGEFILE_SOURCE
3757
3758 add_host_cppflags -D_ISOC99_SOURCE
3759 check_host_cflags -std=c99
3760 check_host_cflags -Wall
3761 check_host_cflags $host_cflags_speed
3762
3763 check_64bit(){
3764 arch32=$1
3765 arch64=$2
3766 expr=$3
3767 check_code cc "" "int test[2*($expr) - 1]" &&
3768 subarch=$arch64 || subarch=$arch32
3769 }
3770
3771 case "$arch" in
3772 aarch64|alpha|ia64)
3773 spic=$shared
3774 ;;
3775 mips)
3776 check_64bit mips mips64 '_MIPS_SIM > 1'
3777 spic=$shared
3778 ;;
3779 parisc)
3780 check_64bit parisc parisc64 'sizeof(void *) > 4'
3781 spic=$shared
3782 ;;
3783 ppc)
3784 check_64bit ppc ppc64 'sizeof(void *) > 4'
3785 spic=$shared
3786 ;;
3787 s390)
3788 check_64bit s390 s390x 'sizeof(void *) > 4'
3789 spic=$shared
3790 ;;
3791 sparc)
3792 check_64bit sparc sparc64 'sizeof(void *) > 4'
3793 spic=$shared
3794 ;;
3795 x86)
3796 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3797 if test "$subarch" = "x86_64"; then
3798 spic=$shared
3799 fi
3800 ;;
3801 esac
3802
3803 enable $subarch
3804 enabled spic && enable_weak pic
3805
3806 enabled x86_64 && objformat=elf64 || objformat="elf32"
3807
3808 # OS specific
3809 case $target_os in
3810 aix)
3811 SHFLAGS=-shared
3812 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3813 enabled shared && add_ldflags -Wl,-brtl
3814 arflags='-Xany -r -c'
3815 ;;
3816 android)
3817 disable symver
3818 enable section_data_rel_ro
3819 SLIB_INSTALL_NAME='$(SLIBNAME)'
3820 SLIB_INSTALL_LINKS=
3821 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3822 ;;
3823 haiku)
3824 prefix_default="/boot/common"
3825 network_extralibs="-lnetwork"
3826 host_extralibs=
3827 ;;
3828 sunos)
3829 SHFLAGS='-shared -Wl,-h,$$(@F)'
3830 enabled x86 && append SHFLAGS -mimpure-text
3831 network_extralibs="-lsocket -lnsl"
3832 # When using suncc to build, the Solaris linker will mark
3833 # an executable with each instruction set encountered by
3834 # the Solaris assembler. As our libraries contain their own
3835 # guards for processor-specific code, instead suppress
3836 # generation of the HWCAPS ELF section on Solaris x86 only.
3837 enabled_all suncc x86 &&
3838 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3839 add_ldflags -Wl,-M,mapfile
3840 nm_default='nm -P -g'
3841 version_script='-M'
3842 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3843 ;;
3844 netbsd)
3845 disable symver
3846 oss_indev_extralibs="-lossaudio"
3847 ;;
3848 openbsd|bitrig)
3849 disable symver
3850 SHFLAGS='-shared'
3851 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3852 SLIB_INSTALL_LINKS=
3853 oss_indev_extralibs="-lossaudio"
3854 ;;
3855 dragonfly)
3856 disable symver
3857 ;;
3858 freebsd)
3859 ;;
3860 bsd/os)
3861 add_extralibs -lpoll -lgnugetopt
3862 ;;
3863 darwin)
3864 enabled ppc && add_asflags -force_cpusubtype_ALL
3865 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3866 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3867 add_ldflags -Wl,-dynamic,-search_paths_first
3868 check_cflags -Werror=partial-availability
3869 SLIBSUF=".dylib"
3870 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3871 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3872 enabled x86_64 && objformat="macho64" || objformat="macho32"
3873 enabled_any pic shared ||
3874 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3875 check_header dispatch/dispatch.h &&
3876 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3877 if test -n "$sysroot"; then
3878 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3879 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3880 fi
3881 ;;
3882 msys*)
3883 die "Native MSYS builds are discouraged, please use the MINGW environment."
3884 ;;
3885 mingw32*|mingw64*)
3886 target_os=mingw32
3887 if enabled shared; then
3888 # Cannot build both shared and static libs when using dllexport.
3889 disable static
3890 fi
3891 check_ldflags -Wl,--nxcompat
3892 check_ldflags -Wl,--dynamicbase
3893 shlibdir_default="$bindir_default"
3894 SLIBPREF=""
3895 SLIBSUF=".dll"
3896 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3897 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3898 SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3899 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3900 SLIB_INSTALL_LINKS=
3901 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3902 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3903 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3904 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3905 enabled x86_64 && objformat="win64" || objformat="win32"
3906 ranlib=:
3907 enable dos_paths
3908 ;;
3909 win32|win64)
3910 disable symver
3911 if enabled shared; then
3912 # Link to the import library instead of the normal static library
3913 # for shared libs.
3914 LD_LIB='%.lib'
3915 # Cannot build both shared and static libs with MSVC or icl.
3916 disable static
3917 fi
3918 shlibdir_default="$bindir_default"
3919 SLIBPREF=""
3920 SLIBSUF=".dll"
3921 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3922 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3923 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3924 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3925 SLIB_INSTALL_LINKS=
3926 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3927 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3928 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3929 enabled x86_64 && objformat="win64" || objformat="win32"
3930 ranlib=:
3931 enable dos_paths
3932 ;;
3933 cygwin*)
3934 target_os=cygwin
3935 shlibdir_default="$bindir_default"
3936 SLIBPREF="cyg"
3937 SLIBSUF=".dll"
3938 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3939 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3940 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3941 SLIB_INSTALL_LINKS=
3942 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3943 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3944 enabled x86_64 && objformat="win64" || objformat="win32"
3945 enable dos_paths
3946 ;;
3947 *-dos|freedos|opendos)
3948 network_extralibs="-lsocket"
3949 objformat="coff"
3950 enable dos_paths
3951 add_cppflags -U__STRICT_ANSI__
3952 ;;
3953 linux)
3954 enable section_data_rel_ro
3955 ;;
3956 irix*)
3957 target_os=irix
3958 ranlib="echo ignoring ranlib"
3959 ;;
3960 os/2*)
3961 ln_s="cp -f"
3962 objformat="aout"
3963 add_cppflags -D_GNU_SOURCE
3964 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3965 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3966 LIBSUF="_s.a"
3967 SLIBPREF=""
3968 SLIBSUF=".dll"
3969 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3970 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3971 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3972 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3973 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3974 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3975 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3976 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3977 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3978 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3979 enable dos_paths
3980 ;;
3981 gnu/kfreebsd)
3982 add_cppflags -D_BSD_SOURCE
3983 ;;
3984 gnu)
3985 ;;
3986 qnx)
3987 add_cppflags -D_QNX_SOURCE
3988 network_extralibs="-lsocket"
3989 ;;
3990 symbian)
3991 SLIBSUF=".dll"
3992 enable dos_paths
3993 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3994 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3995 add_ldflags -Wl,--target1-abs,--no-undefined \
3996 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3997 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3998 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3999 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4000 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4001 ;;
4002 minix)
4003 ;;
4004 none)
4005 ;;
4006 *)
4007 die "Unknown OS '$target_os'."
4008 ;;
4009 esac
4010
4011 # determine libc flavour
4012
4013 probe_libc(){
4014 pfx=$1
4015 pfx_no_=${pfx%_}
4016 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4017 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4018 eval ${pfx}libc_type=uclibc
4019 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4020 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4021 eval ${pfx}libc_type=glibc
4022 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4023 # MinGW headers can be installed on Cygwin, so check for newlib first.
4024 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4025 eval ${pfx}libc_type=newlib
4026 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4027 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4028 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4029 eval ${pfx}libc_type=mingw64
4030 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4031 eval test \$${pfx_no_}cc_type = "gcc" &&
4032 add_${pfx}cppflags -D__printf__=__gnu_printf__
4033 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4034 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4035 eval ${pfx}libc_type=mingw32
4036 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4037 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4038 die "ERROR: MinGW32 runtime version must be >= 3.15."
4039 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4040 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4041 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4042 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4043 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4044 eval test \$${pfx_no_}cc_type = "gcc" &&
4045 add_${pfx}cppflags -D__printf__=__gnu_printf__
4046 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4047 eval ${pfx}libc_type=msvcrt
4048 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4049 if [ "$pfx" = host_ ]; then
4050 add_host_cppflags -Dsnprintf=_snprintf
4051 else
4052 add_compat strtod.o strtod=avpriv_strtod
4053 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4054 _snprintf=avpriv_snprintf \
4055 vsnprintf=avpriv_vsnprintf
4056 fi
4057 fi
4058 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4059 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4060 # 0x601 by default unless something else is set by the user.
4061 # This can easily lead to us detecting functions only present
4062 # in such new versions and producing binaries requiring windows 7.0.
4063 # Therefore explicitly set the default to XP unless the user has
4064 # set something else on the command line.
4065 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4066 # family. For these cases, configure is free to use any functions
4067 # found in the SDK headers by default. (Alternatively, we could force
4068 # _WIN32_WINNT to 0x0602 in that case.)
4069 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4070 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4071 #ifdef WINAPI_FAMILY
4072 #include <winapifamily.h>
4073 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4074 #error not desktop
4075 #endif
4076 #endif
4077 EOF
4078 if [ "$pfx" = "" ]; then
4079 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4080 fi
4081 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4082 eval ${pfx}libc_type=klibc
4083 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4084 eval ${pfx}libc_type=bionic
4085 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4086 eval ${pfx}libc_type=solaris
4087 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4088 else
4089 eval ${pfx}libc_type=default
4090 add_${pfx}cppflags -D_DEFAULT_SOURCE
4091 fi
4092 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4093 }
4094
4095 probe_libc
4096 probe_libc host_
4097
4098 # hacks for compiler/libc/os combinations
4099
4100 case $libc_type in
4101 bionic)
4102 add_compat strtod.o strtod=avpriv_strtod
4103 ;;
4104 esac
4105
4106 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4107 add_cppflags '-I\$(SRC_PATH)/compat/float'
4108
4109 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4110
4111 set_default $PATHS_LIST
4112 set_default nm
4113
4114 disabled optimizations || check_cflags -fomit-frame-pointer
4115
4116 enable_weak_pic() {
4117 disabled pic && return
4118 enable pic
4119 add_cppflags -DPIC
4120 case "$target_os" in
4121 mingw*|cygwin*|win*)
4122 ;;
4123 *)
4124 add_cflags -fPIC
4125 add_asflags -fPIC
4126 ;;
4127 esac
4128 }
4129
4130 enabled pic && enable_weak_pic
4131
4132 check_cc <<EOF || die "Symbol mangling check failed."
4133 int ff_extern;
4134 EOF
4135 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4136 extern_prefix=${sym%%ff_extern*}
4137
4138 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4139
4140 _restrict=
4141 for restrict_keyword in restrict __restrict__ __restrict; do
4142 check_cc <<EOF && _restrict=$restrict_keyword && break
4143 void foo(char * $restrict_keyword p);
4144 EOF
4145 done
4146
4147 check_cc <<EOF && enable pragma_deprecated
4148 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4149 EOF
4150
4151 check_cc <<EOF || die "endian test failed"
4152 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4153 EOF
4154 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4155
4156 check_gas() {
4157 log "check_gas using '$as' as AS"
4158 # :vararg is used on aarch64, arm and ppc altivec
4159 check_as <<EOF || return 1
4160 .macro m n, y:vararg=0
4161 \n: .int \y
4162 .endm
4163 m x
4164 EOF
4165 # .altmacro is only used in arm asm
4166 ! enabled arm || check_as <<EOF || return 1
4167 .altmacro
4168 EOF
4169 enable gnu_as
4170 return 0
4171 }
4172
4173 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4174 nogas=:
4175 enabled_any arm aarch64 && nogas=die
4176 enabled_all ppc altivec && nogas=warn
4177 as_noop=-v
4178
4179 case $as_type in
4180 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4181 gcc) gaspp_as_type=gas ;;
4182 *) gaspp_as_type=$as_type ;;
4183 esac
4184
4185 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4186
4187 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4188 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4189
4190 if ! check_gas ; then
4191 as=${gas:=$as}
4192 check_gas || \
4193 $nogas "GNU assembler not found, install/update gas-preprocessor"
4194 fi
4195
4196 check_as <<EOF && enable as_func
4197 .func test
4198 .endfunc
4199 EOF
4200 fi
4201
4202 check_inline_asm inline_asm_labels '"1:\n"'
4203
4204 if enabled aarch64; then
4205 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4206 # internal assembler in clang 3.3 does not support this instruction
4207 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4208 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4209
4210 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4211
4212 elif enabled alpha; then
4213
4214 check_cflags -mieee
4215
4216 elif enabled arm; then
4217
4218 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4219 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4220 enabled thumb && check_cflags -mthumb || check_cflags -marm
4221
4222 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4223 enable vfp_args
4224 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4225 enable vfp_args
4226 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4227 case "${cross_prefix:-$cc}" in
4228 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4229 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4230 __asm__ (".eabi_attribute 28, 1");
4231 int main(void) { return 0; }
4232 EOF
4233 esac
4234 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4235 fi
4236
4237 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4238 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4239 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4240 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4241 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4242 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4243
4244 [ $target_os = linux ] || [ $target_os = android ] ||
4245 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4246 $ARCH_EXT_LIST_ARM
4247
4248 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4249
4250 check_as <<EOF && enable as_arch_directive
4251 .arch armv7-a
4252 EOF
4253 check_as <<EOF && enable as_fpu_directive
4254 .fpu neon
4255 EOF
4256
4257 # llvm's integrated assembler supports .object_arch from llvm 3.5
4258 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4259 check_as <<EOF && enable as_object_arch
4260 .object_arch armv4
4261 EOF
4262
4263 # MS armasm fails to assemble our PIC constructs
4264 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4265
4266 elif enabled mips; then
4267
4268 # make sure that only one instruction set is enabled
4269 disable $ARCH_EXT_LIST_MIPS
4270
4271 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4272
4273 if enabled mips64; then
4274 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4275 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4276 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4277 else
4278 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4279 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4280 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4281 fi
4282
4283 elif enabled parisc; then
4284
4285 if enabled gcc; then
4286 case $($cc -dumpversion) in
4287 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4288 esac
4289 fi
4290
4291 elif enabled ppc; then
4292
4293 enable local_aligned_8 local_aligned_16 local_aligned_32
4294
4295 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4296 check_inline_asm ibm_asm '"add 0, 0, 0"'
4297 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4298 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4299
4300 if enabled altivec; then
4301 check_cflags -maltivec -mabi=altivec
4302
4303 # check if our compiler supports Motorola AltiVec C API
4304 check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4305 vector signed int v2 = (vector signed int) { 1 };
4306 v1 = vec_add(v1, v2);" ||
4307 disable altivec
4308
4309 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4310 fi
4311
4312 if enabled vsx; then
4313 check_cflags -mvsx &&
4314 check_code cc altivec.h "int v[4] = { 0 };
4315 vector signed int v1 = vec_vsx_ld(0, v);" ||
4316 disable vsx
4317 fi
4318
4319 if enabled power8; then
4320 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4321 fi
4322
4323 elif enabled x86; then
4324
4325 check_builtin rdtsc intrin.h "__rdtsc()"
4326 check_builtin mm_empty mmintrin.h "_mm_empty()"
4327
4328 enable local_aligned_8 local_aligned_16 local_aligned_32
4329
4330 # check whether EBP is available on x86
4331 # As 'i' is stored on the stack, this program will crash
4332 # if the base pointer is used to access it because the
4333 # base pointer is cleared in the inline assembly code.
4334 check_exec_crash <<EOF && enable ebp_available
4335 volatile int i=0;
4336 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4337 return i;
4338 EOF
4339
4340 # check whether EBX is available on x86
4341 check_inline_asm ebx_available '""::"b"(0)' &&
4342 check_inline_asm ebx_available '"":::"%ebx"'
4343
4344 # check whether xmm clobbers are supported
4345 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4346
4347 # check whether binutils is new enough to compile SSSE3/MMXEXT
4348 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4349 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4350
4351 probe_x86asm(){
4352 x86asmexe_probe=$1
4353 if check_cmd $x86asmexe_probe -v; then
4354 x86asmexe=$x86asmexe_probe
4355 x86asm_type=nasm
4356 x86asm_debug="-g -F dwarf"
4357 X86ASMDEP=
4358 X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4359 elif check_cmd $x86asmexe_probe --version; then
4360 x86asmexe=$x86asmexe_probe
4361 x86asm_type=yasm
4362 x86asm_debug="-g dwarf2"
4363 X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4364 X86ASM_DEPFLAGS=
4365 fi
4366 check_x86asm "movbe ecx, [5]" && enable x86asm
4367 }
4368
4369 if ! disabled_any asm mmx x86asm; then
4370 disable x86asm
4371 for program in $x86asmexe nasm yasm; do
4372 probe_x86asm $program && break
4373 done
4374 disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4375 X86ASMFLAGS="-f $objformat"
4376 enabled pic && append X86ASMFLAGS "-DPIC"
4377 test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
4378 case "$objformat" in
4379 elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4380 esac
4381
4382 check_x86asm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4383 check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4384 check_x86asm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4385 check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4386 check_x86asm "CPU amdnop" || disable cpunop
4387 fi
4388
4389 case "$cpu" in
4390 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4391 disable fast_clz
4392 ;;
4393 esac
4394
4395 fi
4396
4397 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon