configure: Remove unused apply() helper function
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [avbuild/config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix_default]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs (USE WITH CARE)
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-pod2man do not build manual pages
116 --disable-texi2html do not build HTML documentation
117 --disable-avdevice disable libavdevice build
118 --disable-avcodec disable libavcodec build
119 --disable-avformat disable libavformat build
120 --disable-avutil disable libavutil build
121 --disable-swscale disable libswscale build
122 --disable-avfilter disable video filter support [no]
123 --disable-avresample disable libavresample build [no]
124 --disable-pthreads disable pthreads [auto]
125 --disable-w32threads disable Win32 threads [auto]
126 --disable-network disable network support [no]
127 --disable-dct disable DCT code
128 --disable-error-resilience disable error resilience code
129 --disable-lsp disable LSP code
130 --disable-lzo disable LZO decoder code
131 --disable-mdct disable MDCT code
132 --disable-rdft disable RDFT code
133 --disable-fft disable FFT code
134 --disable-faan disable floating point AAN (I)DCT code
135
136 Individual component options:
137 --disable-everything disable all components listed below
138 --disable-encoder=NAME disable encoder NAME
139 --enable-encoder=NAME enable encoder NAME
140 --disable-encoders disable all encoders
141 --disable-decoder=NAME disable decoder NAME
142 --enable-decoder=NAME enable decoder NAME
143 --disable-decoders disable all decoders
144 --disable-hwaccel=NAME disable hwaccel NAME
145 --enable-hwaccel=NAME enable hwaccel NAME
146 --disable-hwaccels disable all hwaccels
147 --disable-muxer=NAME disable muxer NAME
148 --enable-muxer=NAME enable muxer NAME
149 --disable-muxers disable all muxers
150 --disable-demuxer=NAME disable demuxer NAME
151 --enable-demuxer=NAME enable demuxer NAME
152 --disable-demuxers disable all demuxers
153 --enable-parser=NAME enable parser NAME
154 --disable-parser=NAME disable parser NAME
155 --disable-parsers disable all parsers
156 --enable-bsf=NAME enable bitstream filter NAME
157 --disable-bsf=NAME disable bitstream filter NAME
158 --disable-bsfs disable all bitstream filters
159 --enable-protocol=NAME enable protocol NAME
160 --disable-protocol=NAME disable protocol NAME
161 --disable-protocols disable all protocols
162 --enable-indev=NAME enable input device NAME
163 --disable-indev=NAME disable input device NAME
164 --disable-indevs disable input devices
165 --disable-devices disable all devices
166 --enable-filter=NAME enable filter NAME
167 --disable-filter=NAME disable filter NAME
168 --disable-filters disable all filters
169
170 External library support:
171
172 Using any of the following switches will allow Libav to link to the
173 corresponding external library. All the components depending on that library
174 will become enabled, if all their other dependencies are met and they are not
175 explicitly disabled. E.g. --enable-libwavpack will enable linking to
176 libwavpack and allow the libwavpack encoder to be built, unless it is
177 specifically disabled with --disable-encoder=libwavpack.
178
179 Note that only the system libraries are auto-detected. All the other external
180 libraries must be explicitly enabled.
181
182 Also note that the following help text describes the purpose of the libraries
183 themselves, not all their features will necessarily be usable by Libav.
184
185 --enable-avisynth video frameserver
186 --enable-avxsynth Linux version of AviSynth
187 --enable-bzlib bzip2 compression [autodetect]
188 --enable-frei0r video filtering plugins
189 --enable-gnutls crypto
190 --enable-libbs2b Bauer stereophonic-to-binaural DSP
191 --enable-libcdio audio CD input
192 --enable-libdc1394 IEEE 1394/Firewire camera input
193 --enable-libdcadec DCA audio decoding
194 --enable-libfaac AAC audio encoding
195 --enable-libfdk-aac AAC audio encoding/decoding
196 --enable-libfontconfig font configuration and management
197 --enable-libfreetype font rendering
198 --enable-libgsm GSM audio encoding/decoding
199 --enable-libhdcd HDCD decoding filter
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libjack JACK audio sound server
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-cuvid Nvidia CUVID video decode acceleration
236 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
237 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
238 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
239 --enable-libnpp Nvidia CUDA processing
240 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
241 --enable-nvenc Nvidia video encoding
242 --enable-omx OpenMAX IL
243 --enable-omx-rpi OpenMAX IL for Raspberry Pi
244 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
245 --enable-vda Apple Video Decode Acceleration [auto]
246 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
247
248 Toolchain options:
249 --arch=ARCH select architecture [$arch]
250 --cpu=CPU select the minimum required CPU (affects
251 instruction selection, may crash on older CPUs)
252 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
253 --enable-cross-compile assume a cross-compiler is used
254 --sysroot=PATH root of cross-build tree
255 --sysinclude=PATH location of cross-build system headers
256 --target-os=OS compiler targets OS [$target_os]
257 --target-exec=CMD command to run executables on target
258 --target-path=DIR path to view of build directory on target
259 --target-samples=DIR path to samples directory on target
260 --toolchain=NAME set tool defaults according to NAME
261 --nm=NM use nm tool
262 --ar=AR use archive tool AR [$ar_default]
263 --as=AS use assembler AS [$as_default]
264 --cc=CC use C compiler CC [$cc_default]
265 --objcc=OCC use ObjC compiler OCC [$cc_default]
266 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
267 --ld=LD use linker LD
268 --x86asmexe=X86ASM use x86 assembler X86ASM
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
300
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-x86asm disable use of standalone x86 assembly
328
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --disable-valgrind-backtrace do not print a backtrace under Valgrind
341 (only applies to --disable-optimizations builds)
342 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
343 in the name) of tests whose result is ignored
344
345 NOTE: Object files are built at the place where configure is launched.
346 EOF
347 exit 0
348 }
349
350 quotes='""'
351
352 log(){
353 echo "$@" >> $logfile
354 }
355
356 log_file(){
357 log BEGIN $1
358 i=1
359 while read line; do
360 printf '%5s %s\n' "${i}" "${line}"
361 i=$(($i+1))
362 done < $1 >> $logfile
363 log END $1
364 }
365
366 echolog(){
367 log "$@"
368 echo "$@"
369 }
370
371 warn(){
372 log "WARNING: $*"
373 WARNINGS="${WARNINGS}WARNING: $*\n"
374 }
375
376 die(){
377 echolog "$@"
378 cat <<EOF
379
380 If you think configure made a mistake, make sure you are using the latest
381 version from Git. If the latest version fails, report the problem to the
382 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
383 EOF
384 if disabled logging; then
385 cat <<EOF
386 Rerun configure with logging enabled (do not use --disable-logging), and
387 include the log this produces with your report.
388 EOF
389 else
390 cat <<EOF
391 Include the log file "$logfile" produced by configure as this will help
392 solving the problem.
393 EOF
394 fi
395 exit 1
396 }
397
398 # Avoid locale weirdness, besides we really just want to translate ASCII.
399 toupper(){
400 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
401 }
402
403 tolower(){
404 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
405 }
406
407 c_escape(){
408 echo "$*" | sed 's/["\\]/\\\0/g'
409 }
410
411 sh_quote(){
412 v=$(echo "$1" | sed "s/'/'\\\\''/g")
413 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
414 echo "$v"
415 }
416
417 cleanws(){
418 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
419 }
420
421 filter(){
422 pat=$1
423 shift
424 for v; do
425 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
426 done
427 }
428
429 filter_out(){
430 pat=$1
431 shift
432 for v; do
433 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
434 done
435 }
436
437 map(){
438 m=$1
439 shift
440 for v; do eval $m; done
441 }
442
443 add_suffix(){
444 suffix=$1
445 shift
446 for v; do echo ${v}${suffix}; done
447 }
448
449 set_all(){
450 value=$1
451 shift
452 for var in $*; do
453 eval $var=$value
454 done
455 }
456
457 set_weak(){
458 value=$1
459 shift
460 for var; do
461 eval : \${$var:=$value}
462 done
463 }
464
465 sanitize_var_name(){
466 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
467 }
468
469 set_sanitized(){
470 var=$1
471 shift
472 eval $(sanitize_var_name "$var")='$*'
473 }
474
475 get_sanitized(){
476 eval echo \$$(sanitize_var_name "$1")
477 }
478
479 pushvar(){
480 for pvar in $*; do
481 eval level=\${${pvar}_level:=0}
482 eval ${pvar}_${level}="\$$pvar"
483 eval ${pvar}_level=$(($level+1))
484 done
485 }
486
487 popvar(){
488 for pvar in $*; do
489 eval level=\${${pvar}_level:-0}
490 test $level = 0 && continue
491 eval level=$(($level-1))
492 eval $pvar="\${${pvar}_${level}}"
493 eval ${pvar}_level=$level
494 eval unset ${pvar}_${level}
495 done
496 }
497
498 enable(){
499 set_all yes $*
500 }
501
502 disable(){
503 set_all no $*
504 }
505
506 enable_weak(){
507 set_weak yes $*
508 }
509
510 disable_weak(){
511 set_weak no $*
512 }
513
514 enable_sanitized(){
515 for var; do
516 enable $(sanitize_var_name $var)
517 done
518 }
519
520 disable_sanitized(){
521 for var; do
522 disable $(sanitize_var_name $var)
523 done
524 }
525
526 do_enable_deep(){
527 for var; do
528 enabled $var && continue
529 eval sel="\$${var}_select"
530 eval sgs="\$${var}_suggest"
531 pushvar var sgs
532 enable_deep $sel
533 popvar sgs
534 enable_deep_weak $sgs
535 popvar var
536 done
537 }
538
539 enable_deep(){
540 do_enable_deep $*
541 enable $*
542 }
543
544 enable_deep_weak(){
545 for var; do
546 disabled $var && continue
547 pushvar var
548 do_enable_deep $var
549 popvar var
550 enable_weak $var
551 done
552 }
553
554 enabled(){
555 test "${1#!}" = "$1" && op="=" || op="!="
556 eval test "x\$${1#!}" $op "xyes"
557 }
558
559 disabled(){
560 test "${1#!}" = "$1" && op="=" || op="!="
561 eval test "x\$${1#!}" $op "xno"
562 }
563
564 enabled_all(){
565 for opt; do
566 enabled $opt || return 1
567 done
568 }
569
570 disabled_all(){
571 for opt; do
572 disabled $opt || return 1
573 done
574 }
575
576 enabled_any(){
577 for opt; do
578 enabled $opt && return 0
579 done
580 }
581
582 disabled_any(){
583 for opt; do
584 disabled $opt && return 0
585 done
586 return 1
587 }
588
589 set_default(){
590 for opt; do
591 eval : \${$opt:=\$${opt}_default}
592 done
593 }
594
595 is_in(){
596 value=$1
597 shift
598 for var in $*; do
599 [ $var = $value ] && return 0
600 done
601 return 1
602 }
603
604 check_deps(){
605 for cfg; do
606 enabled ${cfg}_checking && die "Circular dependency for $cfg."
607 disabled ${cfg}_checking && continue
608 enable ${cfg}_checking
609
610 eval dep_all="\$${cfg}_deps"
611 eval dep_any="\$${cfg}_deps_any"
612 eval dep_con="\$${cfg}_conflict"
613 eval dep_sel="\$${cfg}_select"
614 eval dep_sgs="\$${cfg}_suggest"
615 eval dep_ifa="\$${cfg}_if"
616 eval dep_ifn="\$${cfg}_if_any"
617
618 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
619 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
620 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
621
622 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
623 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
624 enabled_all $dep_all || disable $cfg
625 enabled_any $dep_any || disable $cfg
626 disabled_all $dep_con || disable $cfg
627 disabled_any $dep_sel && disable $cfg
628
629 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
630
631 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
632 # filter out library deps, these do not belong in extralibs
633 is_in $dep $LIBRARY_LIST && continue
634 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
635 done
636
637 disable ${cfg}_checking
638 done
639 }
640
641 print_config(){
642 pfx=$1
643 files=$2
644 shift 2
645 map 'eval echo "$v \${$v:-no}"' "$@" |
646 awk "BEGIN { split(\"$files\", files) }
647 {
648 c = \"$pfx\" toupper(\$1);
649 v = \$2;
650 sub(/yes/, 1, v);
651 sub(/no/, 0, v);
652 for (f in files) {
653 file = files[f];
654 if (file ~ /\\.h\$/) {
655 printf(\"#define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.asm\$/) {
657 printf(\"%%define %s %d\\n\", c, v) >>file;
658 } else if (file ~ /\\.mak\$/) {
659 n = -v ? \"\" : \"!\";
660 printf(\"%s%s=yes\\n\", n, c) >>file;
661 }
662 }
663 }"
664 }
665
666 print_enabled(){
667 suf=$1
668 shift
669 for v; do
670 enabled $v && printf "%s\n" ${v%$suf}
671 done
672 }
673
674 append(){
675 var=$1
676 shift
677 eval "$var=\"\$$var $*\""
678 }
679
680 prepend(){
681 var=$1
682 shift
683 eval "$var=\"$* \$$var\""
684 }
685
686 unique(){
687 var=$1
688 uniq_list=""
689 for tok in $(eval echo \$$var); do
690 uniq_list="$(filter_out $tok $uniq_list) $tok"
691 done
692 eval "$var=\"${uniq_list}\""
693 }
694
695 resolve(){
696 var=$1
697 tmpvar=
698 for entry in $(eval echo \$$var); do
699 tmpvar="$tmpvar $(eval echo \$${entry})"
700 done
701 eval "$var=\"${tmpvar}\""
702 }
703
704 add_cppflags(){
705 append CPPFLAGS "$@"
706 }
707
708 add_cflags(){
709 append CFLAGS $($cflags_filter "$@")
710 }
711
712 add_cflags_headers(){
713 append CFLAGS_HEADERS $($cflags_filter "$@")
714 }
715
716 add_asflags(){
717 append ASFLAGS $($asflags_filter "$@")
718 }
719
720 add_objcflags(){
721 append OBJCFLAGS $($objcflags_filter "$@")
722 }
723
724 add_ldflags(){
725 append LDFLAGS $($ldflags_filter "$@")
726 }
727
728 add_ldexeflags(){
729 append LDEXEFLAGS $($ldflags_filter "$@")
730 }
731
732 add_ldsoflags(){
733 append LDSOFLAGS $($ldflags_filter "$@")
734 }
735
736 add_stripflags(){
737 append STRIPFLAGS "$@"
738 }
739
740 add_extralibs(){
741 prepend extralibs $($ldflags_filter "$@")
742 }
743
744 add_host_cppflags(){
745 append host_cppflags "$@"
746 }
747
748 add_host_cflags(){
749 append host_cflags $($host_cflags_filter "$@")
750 }
751
752 add_host_ldflags(){
753 append host_ldflags $($host_ldflags_filter "$@")
754 }
755
756 add_compat(){
757 append compat_objs $1
758 shift
759 map 'add_cppflags -D$v' "$@"
760 }
761
762 check_cmd(){
763 log "$@"
764 "$@" >> $logfile 2>&1
765 }
766
767 cc_o(){
768 eval printf '%s\\n' $CC_O
769 }
770
771 cc_e(){
772 eval printf '%s\\n' $CC_E
773 }
774
775 check_cc(){
776 log check_cc "$@"
777 cat > $TMPC
778 log_file $TMPC
779 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
780 }
781
782 check_objcc(){
783 log check_objcc "$@"
784 cat > $TMPC
785 log_file $TMPC
786 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
787 }
788
789 check_cpp(){
790 log check_cpp "$@"
791 cat > $TMPC
792 log_file $TMPC
793 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
794 }
795
796 as_o(){
797 eval printf '%s\\n' $AS_O
798 }
799
800 check_as(){
801 log check_as "$@"
802 cat > $TMPS
803 log_file $TMPS
804 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
805 }
806
807 check_inline_asm(){
808 log check_inline_asm "$@"
809 name="$1"
810 code="$2"
811 shift 2
812 disable $name
813 check_cc "$@" <<EOF && enable $name
814 void foo(void){ __asm__ volatile($code); }
815 EOF
816 }
817
818 check_insn(){
819 log check_insn "$@"
820 check_inline_asm ${1}_inline "\"$2\""
821 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
822 }
823
824 check_x86asm(){
825 log check_x86asm "$@"
826 echo "$1" > $TMPS
827 log_file $TMPS
828 shift 1
829 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
830 }
831
832 ld_o(){
833 eval printf '%s\\n' $LD_O
834 }
835
836 check_ld(){
837 log check_ld "$@"
838 flags=$(filter_out '-l*' "$@")
839 libs=$(filter '-l*' "$@")
840 check_cc $($cflags_filter $flags) || return
841 flags=$($ldflags_filter $flags)
842 libs=$($ldflags_filter $libs)
843 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
844 }
845
846 print_include(){
847 hdr=$1
848 test "${hdr%.h}" = "${hdr}" &&
849 echo "#include $hdr" ||
850 echo "#include <$hdr>"
851 }
852
853 check_code(){
854 log check_code "$@"
855 check=$1
856 headers=$2
857 code=$3
858 shift 3
859 {
860 for hdr in $headers; do
861 print_include $hdr
862 done
863 echo "int main(void) { $code; return 0; }"
864 } | check_$check "$@"
865 }
866
867 check_cppflags(){
868 log check_cppflags "$@"
869 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
870 #include <stdlib.h>;
871 EOF
872 }
873
874 test_cflags(){
875 log test_cflags "$@"
876 set -- $($cflags_filter "$@")
877 check_cc "$@" <<EOF
878 int x;
879 EOF
880 }
881
882 check_cflags(){
883 log check_cflags "$@"
884 test_cflags "$@" && add_cflags "$@"
885 }
886
887 test_objcflags(){
888 log test_objcflags "$@"
889 set -- $($objcflags_filter "$@")
890 check_objcc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_objcflags(){
896 log check_objcflags "$@"
897 test_objcflags "$@" && add_objcflags "$@"
898 }
899
900 test_ldflags(){
901 log test_ldflags "$@"
902 set -- $($ldflags_filter "$@")
903 check_ld "$@" <<EOF
904 int main(void){ return 0; }
905 EOF
906 }
907
908 check_ldflags(){
909 log check_ldflags "$@"
910 test_ldflags "$@" && add_ldflags "$@"
911 }
912
913 test_stripflags(){
914 log test_stripflags "$@"
915 # call check_cc to get a fresh TMPO
916 check_cc <<EOF
917 int main(void) { return 0; }
918 EOF
919 check_cmd $strip $STRIPFLAGS "$@" $TMPO
920 }
921
922 check_stripflags(){
923 log check_stripflags "$@"
924 test_stripflags "$@" && add_stripflags "$@"
925 }
926
927 check_header(){
928 log check_header "$@"
929 headers=$1
930 shift
931 disable_sanitized $headers
932 {
933 for hdr in $headers; do
934 print_include $hdr
935 done
936 echo "int x;"
937 } | check_cpp "$@" && enable_sanitized $headers
938 }
939
940 check_func(){
941 log check_func "$@"
942 func=$1
943 shift
944 disable $func
945 check_ld "$@" <<EOF && enable $func
946 extern int $func();
947 int main(void){ $func(); }
948 EOF
949 }
950
951 check_mathfunc(){
952 log check_mathfunc "$@"
953 func=$1
954 narg=$2
955 shift 2
956 test $narg = 2 && args="f, g" || args="f"
957 disable $func
958 check_ld "$@" <<EOF && enable $func
959 #include <math.h>
960 float foo(float f, float g) { return $func($args); }
961 int main(void){ return 0; }
962 EOF
963 }
964
965 check_func_headers(){
966 log check_func_headers "$@"
967 headers=$1
968 funcs=$2
969 shift 2
970 {
971 for hdr in $headers; do
972 print_include $hdr
973 done
974 for func in $funcs; do
975 echo "long check_$func(void) { return (long) $func; }"
976 done
977 echo "int main(void) { return 0; }"
978 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
979 }
980
981 check_cpp_condition(){
982 log check_cpp_condition "$@"
983 header=$1
984 condition=$2
985 shift 2
986 check_cpp "$@" <<EOF
987 #include <$header>
988 #if !($condition)
989 #error "unsatisfied condition: $condition"
990 #endif
991 EOF
992 }
993
994 test_cflags_cpp(){
995 log test_cflags_cpp "$@"
996 flags=$1
997 condition=$2
998 shift 2
999 set -- $($cflags_filter "$flags")
1000 check_cpp "$@" <<EOF
1001 #if !($condition)
1002 #error "unsatisfied condition: $condition"
1003 #endif
1004 EOF
1005 }
1006
1007 check_lib(){
1008 log check_lib "$@"
1009 name="$1"
1010 headers="$2"
1011 funcs="$3"
1012 shift 3
1013 disable $name
1014 check_func_headers "$headers" "$funcs" "$@" &&
1015 enable $name && eval ${name}_extralibs="\$@"
1016 }
1017
1018 test_pkg_config(){
1019 log test_pkg_config "$@"
1020 name="$1"
1021 pkg_version="$2"
1022 pkg="${2%% *}"
1023 headers="$3"
1024 funcs="$4"
1025 shift 4
1026 disable $name
1027 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1028 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1029 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1030 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1031 enable $name &&
1032 set_sanitized "${name}_cflags" $pkg_cflags &&
1033 set_sanitized "${name}_extralibs" $pkg_libs
1034 }
1035
1036 check_pkg_config(){
1037 log check_pkg_config "$@"
1038 name="$1"
1039 test_pkg_config "$@" &&
1040 eval add_cflags \$${name}_cflags
1041 }
1042
1043 check_exec(){
1044 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1045 }
1046
1047 check_exec_crash(){
1048 log check_exec_crash "$@"
1049 code=$(cat)
1050
1051 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1052 # are safe but may not be available everywhere. Thus we use
1053 # raise(SIGTERM) instead. The check is run in a subshell so we
1054 # can redirect the "Terminated" message from the shell. SIGBUS
1055 # is not defined by standard C so it is used conditionally.
1056
1057 (check_exec "$@") >> $logfile 2>&1 <<EOF
1058 #include <signal.h>
1059 static void sighandler(int sig){
1060 raise(SIGTERM);
1061 }
1062 int foo(void){
1063 $code
1064 }
1065 int (*func_ptr)(void) = foo;
1066 int main(void){
1067 signal(SIGILL, sighandler);
1068 signal(SIGFPE, sighandler);
1069 signal(SIGSEGV, sighandler);
1070 #ifdef SIGBUS
1071 signal(SIGBUS, sighandler);
1072 #endif
1073 return func_ptr();
1074 }
1075 EOF
1076 }
1077
1078 check_type(){
1079 log check_type "$@"
1080 headers=$1
1081 type=$2
1082 shift 2
1083 disable_sanitized "$type"
1084 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1085 }
1086
1087 check_struct(){
1088 log check_struct "$@"
1089 headers=$1
1090 struct=$2
1091 member=$3
1092 shift 3
1093 disable_sanitized "${struct}_${member}"
1094 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1095 enable_sanitized "${struct}_${member}"
1096 }
1097
1098 check_builtin(){
1099 log check_builtin "$@"
1100 name=$1
1101 headers=$2
1102 builtin=$3
1103 shift 3
1104 disable "$name"
1105 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1106 }
1107
1108 check_compile_assert(){
1109 log check_compile_assert "$@"
1110 name=$1
1111 headers=$2
1112 condition=$3
1113 shift 3
1114 disable "$name"
1115 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1116 }
1117
1118 require(){
1119 log require "$@"
1120 name_version="$1"
1121 name="${1%% *}"
1122 headers="$2"
1123 func="$3"
1124 shift 3
1125 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1126 }
1127
1128 require_header(){
1129 log require_header "$@"
1130 headers="$1"
1131 shift
1132 check_header "$headers" "$@" || die "ERROR: $headers not found"
1133 }
1134
1135 require_cpp_condition(){
1136 log require_cpp_condition "$@"
1137 header="$1"
1138 condition="$2"
1139 shift 2
1140 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1141 }
1142
1143 require_pkg_config(){
1144 log require_pkg_config "$@"
1145 pkg_version="$2"
1146 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1147 }
1148
1149 hostcc_e(){
1150 eval printf '%s\\n' $HOSTCC_E
1151 }
1152
1153 hostcc_o(){
1154 eval printf '%s\\n' $HOSTCC_O
1155 }
1156
1157 check_host_cc(){
1158 log check_host_cc "$@"
1159 cat > $TMPC
1160 log_file $TMPC
1161 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1162 }
1163
1164 check_host_cpp(){
1165 log check_host_cpp "$@"
1166 cat > $TMPC
1167 log_file $TMPC
1168 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1169 }
1170
1171 check_host_cppflags(){
1172 log check_host_cppflags "$@"
1173 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1174 #include <stdlib.h>;
1175 EOF
1176 }
1177
1178 check_host_cflags(){
1179 log check_host_cflags "$@"
1180 set -- $($host_cflags_filter "$@")
1181 check_host_cc "$@" <<EOF && append host_cflags "$@"
1182 int x;
1183 EOF
1184 }
1185
1186 check_host_cpp_condition(){
1187 log check_host_cpp_condition "$@"
1188 header=$1
1189 condition=$2
1190 shift 2
1191 check_host_cpp "$@" <<EOF
1192 #include <$header>
1193 #if !($condition)
1194 #error "unsatisfied condition: $condition"
1195 #endif
1196 EOF
1197 }
1198
1199 cp_if_changed(){
1200 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1201 mkdir -p "$(dirname $2)"
1202 cp -f "$1" "$2"
1203 }
1204
1205 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1206 # system-dependent things.
1207
1208 AVCODEC_COMPONENTS="
1209 bsfs
1210 decoders
1211 encoders
1212 hwaccels
1213 parsers
1214 "
1215
1216 AVDEVICE_COMPONENTS="
1217 indevs
1218 "
1219 AVFILTER_COMPONENTS="
1220 filters
1221 "
1222 AVFORMAT_COMPONENTS="
1223 demuxers
1224 muxers
1225 protocols
1226 "
1227
1228 COMPONENT_LIST="
1229 $AVCODEC_COMPONENTS
1230 $AVDEVICE_COMPONENTS
1231 $AVFILTER_COMPONENTS
1232 $AVFORMAT_COMPONENTS
1233 "
1234
1235 EXAMPLE_LIST="
1236 decode_audio_example
1237 decode_video_example
1238 encode_audio_example
1239 encode_video_example
1240 filter_audio_example
1241 metadata_example
1242 output_example
1243 qsvdec_example
1244 transcode_aac_example
1245 "
1246
1247 # catchall list of things that require external libs to link
1248 EXTRALIBS_LIST="
1249 cpu_init
1250 cws2fws
1251 "
1252
1253 HWACCEL_LIBRARY_NONFREE_LIST="
1254 cuda
1255 cuvid
1256 libnpp
1257 "
1258 HWACCEL_LIBRARY_LIST="
1259 $HWACCEL_LIBRARY_NONFREE_LIST
1260 d3d11va
1261 dxva2
1262 libmfx
1263 mmal
1264 nvenc
1265 omx
1266 vaapi
1267 vda
1268 vdpau
1269 "
1270
1271 EXTERNAL_LIBRARY_GPL_LIST="
1272 libcdio
1273 libx264
1274 libx265
1275 libxavs
1276 libxvid
1277 "
1278
1279 EXTERNAL_LIBRARY_NONFREE_LIST="
1280 libfaac
1281 libfdk_aac
1282 openssl
1283 "
1284
1285 EXTERNAL_LIBRARY_VERSION3_LIST="
1286 libopencore_amrnb
1287 libopencore_amrwb
1288 libvo_aacenc
1289 libvo_amrwbenc
1290 "
1291
1292 EXTERNAL_LIBRARY_LIST="
1293 $EXTERNAL_LIBRARY_GPL_LIST
1294 $EXTERNAL_LIBRARY_NONFREE_LIST
1295 $EXTERNAL_LIBRARY_VERSION3_LIST
1296 avisynth
1297 avxsynth
1298 frei0r
1299 gnutls
1300 libbs2b
1301 libdc1394
1302 libdcadec
1303 libfontconfig
1304 libfreetype
1305 libgsm
1306 libhdcd
1307 libilbc
1308 libjack
1309 libkvazaar
1310 libmp3lame
1311 libopencv
1312 libopenh264
1313 libopenjpeg
1314 libopus
1315 libpulse
1316 librtmp
1317 libschroedinger
1318 libsnappy
1319 libspeex
1320 libtheora
1321 libtwolame
1322 libvorbis
1323 libvpx
1324 libwavpack
1325 libwebp
1326 libxcb
1327 libxcb_shm
1328 libxcb_xfixes
1329 "
1330
1331 SYSTEM_LIBRARY_LIST="
1332 bzlib
1333 zlib
1334 "
1335
1336 FEATURE_LIST="
1337 gray
1338 hardcoded_tables
1339 omx_rpi
1340 runtime_cpudetect
1341 safe_bitstream_reader
1342 shared
1343 small
1344 sram
1345 static
1346 swscale_alpha
1347 "
1348
1349 LIBRARY_LIST="
1350 avcodec
1351 avdevice
1352 avfilter
1353 avformat
1354 avresample
1355 avutil
1356 swscale
1357 "
1358
1359 LICENSE_LIST="
1360 gpl
1361 nonfree
1362 version3
1363 "
1364
1365 PROGRAM_LIST="
1366 avconv
1367 avplay
1368 avprobe
1369 "
1370
1371 SUBSYSTEM_LIST="
1372 dct
1373 doc
1374 error_resilience
1375 faan
1376 fft
1377 lsp
1378 lzo
1379 mdct
1380 network
1381 rdft
1382 "
1383
1384 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1385 CONFIG_LIST="
1386 $EXAMPLE_LIST
1387 $EXTERNAL_LIBRARY_LIST
1388 $HWACCEL_LIBRARY_LIST
1389 $FEATURE_LIST
1390 $LICENSE_LIST
1391 $LIBRARY_LIST
1392 $PROGRAM_LIST
1393 $SUBSYSTEM_LIST
1394 $SYSTEM_LIBRARY_LIST
1395 neon_clobber_test
1396 pic
1397 pod2man
1398 texi2html
1399 thumb
1400 valgrind_backtrace
1401 xmm_clobber_test
1402 $COMPONENT_LIST
1403 "
1404
1405 THREADS_LIST="
1406 pthreads
1407 w32threads
1408 "
1409
1410 ATOMICS_LIST="
1411 atomics_gcc
1412 atomics_suncc
1413 atomics_win32
1414 "
1415
1416 ARCH_LIST="
1417 aarch64
1418 alpha
1419 arm
1420 avr32
1421 avr32_ap
1422 avr32_uc
1423 bfin
1424 ia64
1425 m68k
1426 mips
1427 mips64
1428 parisc
1429 ppc
1430 ppc64
1431 s390
1432 sh4
1433 sparc
1434 sparc64
1435 tilegx
1436 tilepro
1437 tomi
1438 x86
1439 x86_32
1440 x86_64
1441 "
1442
1443 ARCH_EXT_LIST_ARM="
1444 armv5te
1445 armv6
1446 armv6t2
1447 armv8
1448 neon
1449 vfp
1450 vfpv3
1451 "
1452
1453 ARCH_EXT_LIST_X86_SIMD="
1454 amd3dnow
1455 amd3dnowext
1456 avx
1457 avx2
1458 fma3
1459 fma4
1460 mmx
1461 mmxext
1462 sse
1463 sse2
1464 sse3
1465 sse4
1466 sse42
1467 ssse3
1468 xop
1469 "
1470
1471 ARCH_EXT_LIST_PPC="
1472 altivec
1473 dcbzl
1474 ldbrx
1475 power8
1476 ppc4xx
1477 vsx
1478 "
1479
1480 ARCH_EXT_LIST_X86="
1481 $ARCH_EXT_LIST_X86_SIMD
1482 cpunop
1483 i686
1484 "
1485
1486 ARCH_EXT_LIST_MIPS="
1487 loongson
1488 mips32r1
1489 mips64r1
1490 mips32r2
1491 mips64r2
1492 mips32r6
1493 mips64r6
1494 "
1495
1496 ARCH_EXT_LIST="
1497 $ARCH_EXT_LIST_ARM
1498 $ARCH_EXT_LIST_MIPS
1499 $ARCH_EXT_LIST_PPC
1500 $ARCH_EXT_LIST_X86
1501 vis
1502 "
1503
1504 ARCH_FEATURES="
1505 aligned_stack
1506 fast_64bit
1507 fast_clz
1508 fast_cmov
1509 local_aligned_8
1510 local_aligned_16
1511 local_aligned_32
1512 simd_align_16
1513 simd_align_32
1514 "
1515
1516 BUILTIN_LIST="
1517 atomic_cas_ptr
1518 machine_rw_barrier
1519 MemoryBarrier
1520 mm_empty
1521 rdtsc
1522 sem_timedwait
1523 sync_val_compare_and_swap
1524 "
1525 HAVE_LIST_CMDLINE="
1526 inline_asm
1527 symver
1528 x86asm
1529 "
1530
1531 HAVE_LIST_PUB="
1532 bigendian
1533 fast_unaligned
1534 "
1535
1536 HEADERS_LIST="
1537 AVFoundation_AVFoundation_h
1538 arpa_inet_h
1539 cdio_paranoia_h
1540 cdio_paranoia_paranoia_h
1541 dispatch_dispatch_h
1542 dev_bktr_ioctl_bt848_h
1543 dev_bktr_ioctl_meteor_h
1544 dev_ic_bt8xx_h
1545 dev_video_bktr_ioctl_bt848_h
1546 dev_video_meteor_ioctl_meteor_h
1547 direct_h
1548 dxgidebug_h
1549 dxva_h
1550 io_h
1551 machine_ioctl_bt848_h
1552 machine_ioctl_meteor_h
1553 malloc_h
1554 poll_h
1555 sys_param_h
1556 sys_resource_h
1557 sys_select_h
1558 sys_soundcard_h
1559 sys_time_h
1560 sys_un_h
1561 sys_videoio_h
1562 unistd_h
1563 valgrind_valgrind_h
1564 windows_h
1565 winsock2_h
1566 "
1567
1568 INTRINSICS_LIST="
1569 intrinsics_neon
1570 "
1571
1572 MATH_FUNCS="
1573 atanf
1574 atan2f
1575 cbrtf
1576 cosf
1577 exp2
1578 exp2f
1579 expf
1580 isinf
1581 isnan
1582 ldexpf
1583 llrint
1584 llrintf
1585 log2
1586 log2f
1587 log10f
1588 lrint
1589 lrintf
1590 powf
1591 rint
1592 round
1593 roundf
1594 sinf
1595 trunc
1596 truncf
1597 "
1598
1599 SYSTEM_FEATURES="
1600 dos_paths
1601 libc_msvcrt
1602 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1603 section_data_rel_ro
1604 threads
1605 uwp
1606 "
1607
1608 SYSTEM_FUNCS="
1609 aligned_malloc
1610 clock_gettime
1611 closesocket
1612 CommandLineToArgvW
1613 fcntl
1614 getaddrinfo
1615 gethrtime
1616 getopt
1617 GetProcessAffinityMask
1618 GetProcessMemoryInfo
1619 GetProcessTimes
1620 getrusage
1621 GetSystemTimeAsFileTime
1622 gettimeofday
1623 gmtime_r
1624 inet_aton
1625 isatty
1626 localtime_r
1627 mach_absolute_time
1628 MapViewOfFile
1629 memalign
1630 mmap
1631 mprotect
1632 nanosleep
1633 posix_memalign
1634 sched_getaffinity
1635 SetConsoleTextAttribute
1636 setmode
1637 setrlimit
1638 Sleep
1639 strerror_r
1640 sysconf
1641 sysctl
1642 usleep
1643 VirtualAlloc
1644 "
1645
1646 SYSTEM_LIBRARIES="
1647 sdl
1648 vaapi_1
1649 vaapi_drm
1650 vaapi_x11
1651 vdpau_x11
1652 wincrypt
1653 "
1654
1655 TOOLCHAIN_FEATURES="
1656 as_arch_directive
1657 as_fpu_directive
1658 as_func
1659 as_object_arch
1660 asm_mod_q
1661 blocks_extension
1662 ebp_available
1663 ebx_available
1664 gnu_as
1665 ibm_asm
1666 inline_asm_labels
1667 pragma_deprecated
1668 symver_asm_label
1669 symver_gnu_asm
1670 vfp_args
1671 xform_asm
1672 xmm_clobbers
1673 "
1674
1675 TYPES_LIST="
1676 CONDITION_VARIABLE_Ptr
1677 CUVIDDECODECREATEINFO_bitDepthMinus8
1678 socklen_t
1679 struct_addrinfo
1680 struct_group_source_req
1681 struct_ip_mreq_source
1682 struct_ipv6_mreq
1683 struct_pollfd
1684 struct_rusage_ru_maxrss
1685 struct_sockaddr_in6
1686 struct_sockaddr_sa_len
1687 struct_sockaddr_storage
1688 struct_v4l2_frmivalenum_discrete
1689 "
1690
1691 HAVE_LIST="
1692 $ARCH_EXT_LIST
1693 $(add_suffix _external $ARCH_EXT_LIST)
1694 $(add_suffix _inline $ARCH_EXT_LIST)
1695 $ARCH_FEATURES
1696 $BUILTIN_LIST
1697 $HAVE_LIST_CMDLINE
1698 $HAVE_LIST_PUB
1699 $HEADERS_LIST
1700 $INTRINSICS_LIST
1701 $MATH_FUNCS
1702 $SYSTEM_FEATURES
1703 $SYSTEM_FUNCS
1704 $SYSTEM_LIBRARIES
1705 $THREADS_LIST
1706 $TOOLCHAIN_FEATURES
1707 $TYPES_LIST
1708 "
1709
1710 # options emitted with CONFIG_ prefix but not available on the command line
1711 CONFIG_EXTRA="
1712 aandcttables
1713 ac3dsp
1714 adts_header
1715 audio_frame_queue
1716 audiodsp
1717 blockdsp
1718 bswapdsp
1719 cabac
1720 cbs
1721 cbs_h264
1722 cbs_h265
1723 cbs_mpeg2
1724 dirac_parse
1725 dvprofile
1726 faandct
1727 faanidct
1728 fdctdsp
1729 flacdsp
1730 fmtconvert
1731 g722dsp
1732 gmp
1733 golomb
1734 gplv3
1735 h263dsp
1736 h264chroma
1737 h264dsp
1738 h264parse
1739 h264pred
1740 h264qpel
1741 hevcparse
1742 hpeldsp
1743 huffman
1744 huffyuvdsp
1745 huffyuvencdsp
1746 idctdsp
1747 iirfilter
1748 imdct15
1749 intrax8
1750 iso_media
1751 ividsp
1752 jpegtables
1753 lgplv3
1754 libx262
1755 libxcb_shape
1756 lpc
1757 lzf
1758 me_cmp
1759 mpeg_er
1760 mpegaudio
1761 mpegaudiodsp
1762 mpegaudioheader
1763 mpegvideo
1764 mpegvideoenc
1765 mss34dsp
1766 pixblockdsp
1767 qpeldsp
1768 qsv
1769 qsvdec
1770 qsvenc
1771 qsvvpp
1772 rangecoder
1773 riffdec
1774 riffenc
1775 rtpdec
1776 rtpenc_chain
1777 rv34dsp
1778 sinewin
1779 snappy
1780 srtp
1781 startcode
1782 texturedsp
1783 texturedspenc
1784 tpeldsp
1785 vaapi_encode
1786 vc1dsp
1787 videodsp
1788 vp3dsp
1789 vp56dsp
1790 vp8dsp
1791 wma_freqs
1792 wmv2dsp
1793 "
1794
1795 CMDLINE_SELECT="
1796 $ARCH_EXT_LIST
1797 $CONFIG_LIST
1798 $HAVE_LIST_CMDLINE
1799 $THREADS_LIST
1800 asm
1801 cross_compile
1802 debug
1803 extra_warnings
1804 logging
1805 lto
1806 optimizations
1807 rpath
1808 "
1809
1810 PATHS_LIST="
1811 bindir
1812 datadir
1813 docdir
1814 incdir
1815 libdir
1816 mandir
1817 prefix
1818 shlibdir
1819 "
1820
1821 CMDLINE_SET="
1822 $PATHS_LIST
1823 ar
1824 arch
1825 as
1826 cc
1827 objcc
1828 cpu
1829 cross_prefix
1830 custom_allocator
1831 dep_cc
1832 env
1833 extra_version
1834 host_cc
1835 host_cflags
1836 host_extralibs
1837 host_ld
1838 host_ldflags
1839 host_os
1840 ignore_tests
1841 ld
1842 logfile
1843 malloc_prefix
1844 nm
1845 optflags
1846 pkg_config
1847 pkg_config_flags
1848 samples
1849 sysinclude
1850 sysroot
1851 target_exec
1852 target_os
1853 target_path
1854 target_samples
1855 toolchain
1856 x86asmexe
1857 "
1858
1859 CMDLINE_APPEND="
1860 extra_cflags
1861 extra_objcflags
1862 host_cppflags
1863 "
1864
1865 # code dependency declarations
1866
1867 # architecture extensions
1868
1869 armv5te_deps="arm"
1870 armv6_deps="arm"
1871 armv6t2_deps="arm"
1872 armv8_deps="aarch64"
1873 neon_deps_any="aarch64 arm"
1874 intrinsics_neon_deps="neon"
1875 vfp_deps_any="aarch64 arm"
1876 vfpv3_deps="vfp"
1877
1878 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1879
1880 altivec_deps="ppc"
1881 dcbzl_deps="ppc"
1882 ldbrx_deps="ppc"
1883 ppc4xx_deps="ppc"
1884 vsx_deps="altivec"
1885 power8_deps="vsx"
1886
1887 loongson_deps="mips"
1888 mips32r1_deps="mips32"
1889 mips32r2_deps="mips32"
1890 mips32r6_deps="mips32"
1891 mips64r1_deps="mips64"
1892 mips64r2_deps="mips64"
1893 mips64r6_deps="mips64"
1894
1895 vis_deps="sparc"
1896
1897 cpunop_deps="i686"
1898 x86_64_select="i686"
1899 x86_64_suggest="fast_cmov"
1900
1901 amd3dnow_deps="mmx"
1902 amd3dnowext_deps="amd3dnow"
1903 i686_deps="x86"
1904 mmx_deps="x86"
1905 mmxext_deps="mmx"
1906 sse_deps="mmxext"
1907 sse2_deps="sse"
1908 sse3_deps="sse2"
1909 ssse3_deps="sse3"
1910 sse4_deps="ssse3"
1911 sse42_deps="sse4"
1912 avx_deps="sse42"
1913 xop_deps="avx"
1914 fma3_deps="avx"
1915 fma4_deps="avx"
1916 avx2_deps="avx"
1917
1918 mmx_external_deps="x86asm"
1919 mmx_inline_deps="inline_asm x86"
1920 mmx_suggest="mmx_external mmx_inline"
1921
1922 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1923 eval dep=\$${ext}_deps
1924 eval ${ext}_external_deps='"${dep}_external"'
1925 eval ${ext}_inline_deps='"${dep}_inline"'
1926 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1927 done
1928
1929 aligned_stack_if_any="aarch64 ppc x86"
1930 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1931 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1932 fast_unaligned_if_any="aarch64 ppc x86"
1933 simd_align_16_if_any="altivec neon sse"
1934 simd_align_32_if_any="avx"
1935
1936 # system capabilities
1937 symver_if_any="symver_asm_label symver_gnu_asm"
1938 valgrind_backtrace_conflict="optimizations"
1939 valgrind_backtrace_deps="valgrind_valgrind_h"
1940
1941 # threading support
1942 atomics_gcc_if="sync_val_compare_and_swap"
1943 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1944 atomics_win32_if="MemoryBarrier"
1945 atomics_native_if_any="$ATOMICS_LIST"
1946 w32threads_deps="atomics_native"
1947 threads_if_any="$THREADS_LIST"
1948
1949 # subsystems
1950 cbs_h264_select="cbs golomb"
1951 cbs_h265_select="cbs golomb"
1952 cbs_mpeg2_select="cbs"
1953 dct_select="rdft"
1954 dirac_parse_select="golomb"
1955 error_resilience_select="me_cmp"
1956 faandct_deps="faan"
1957 faandct_select="fdctdsp"
1958 faanidct_deps="faan"
1959 faanidct_select="idctdsp"
1960 h264dsp_select="startcode"
1961 hevcparse_select="golomb"
1962 intrax8_select="blockdsp idctdsp"
1963 mdct_select="fft"
1964 rdft_select="fft"
1965 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1966 mpeg_er_select="error_resilience"
1967 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1968 mpegaudiodsp_select="dct"
1969 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1970 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1971 vc1dsp_select="h264chroma qpeldsp startcode"
1972
1973 # decoders / encoders
1974 aac_decoder_select="adts_header imdct15 mdct sinewin"
1975 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1976 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1977 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1978 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1979 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1980 adpcm_g722_decoder_select="g722dsp"
1981 adpcm_g722_encoder_select="g722dsp"
1982 aic_decoder_select="golomb idctdsp"
1983 alac_encoder_select="lpc"
1984 als_decoder_select="bswapdsp"
1985 amrnb_decoder_select="lsp"
1986 amrwb_decoder_select="lsp"
1987 amv_decoder_select="sp5x_decoder"
1988 ape_decoder_select="bswapdsp"
1989 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1990 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1991 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1992 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1993 atrac1_decoder_select="mdct sinewin"
1994 atrac3_decoder_select="mdct"
1995 atrac3p_decoder_select="mdct sinewin"
1996 bink_decoder_select="blockdsp hpeldsp"
1997 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1998 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1999 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2000 clearvideo_decoder_select="idctdsp"
2001 cllc_decoder_select="bswapdsp"
2002 comfortnoise_encoder_select="lpc"
2003 cook_decoder_select="audiodsp mdct sinewin"
2004 cscd_decoder_select="lzo"
2005 cscd_decoder_suggest="zlib"
2006 dca_decoder_select="fmtconvert mdct"
2007 dds_decoder_select="texturedsp"
2008 dnxhd_decoder_select="blockdsp idctdsp"
2009 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2010 dvvideo_decoder_select="dvprofile idctdsp"
2011 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2012 dxa_decoder_deps="zlib"
2013 dxv_decoder_select="lzf texturedsp"
2014 eac3_decoder_select="ac3_decoder"
2015 eac3_encoder_select="ac3_encoder"
2016 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2017 eatgq_decoder_select="aandcttables idctdsp"
2018 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2019 exr_decoder_deps="zlib"
2020 ffv1_decoder_select="rangecoder"
2021 ffv1_encoder_select="rangecoder"
2022 ffvhuff_decoder_select="huffyuv_decoder"
2023 ffvhuff_encoder_select="huffyuv_encoder"
2024 fic_decoder_select="golomb"
2025 flac_decoder_select="flacdsp"
2026 flac_encoder_select="bswapdsp flacdsp lpc"
2027 flashsv_decoder_deps="zlib"
2028 flashsv_encoder_deps="zlib"
2029 flashsv2_decoder_deps="zlib"
2030 flv_decoder_select="h263_decoder"
2031 flv_encoder_select="h263_encoder"
2032 fourxm_decoder_select="blockdsp bswapdsp"
2033 fraps_decoder_select="bswapdsp huffman"
2034 g2m_decoder_deps="zlib"
2035 g2m_decoder_select="blockdsp idctdsp jpegtables"
2036 h261_decoder_select="mpeg_er mpegvideo"
2037 h261_encoder_select="aandcttables mpegvideoenc"
2038 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2039 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2040 h263i_decoder_select="h263_decoder"
2041 h263p_encoder_select="h263_encoder"
2042 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2043 h264_decoder_suggest="error_resilience"
2044 hap_decoder_select="snappy texturedsp"
2045 hap_encoder_deps="libsnappy"
2046 hap_encoder_select="texturedspenc"
2047 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2048 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2049 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2050 iac_decoder_select="imc_decoder"
2051 imc_decoder_select="bswapdsp fft mdct sinewin"
2052 indeo3_decoder_select="hpeldsp"
2053 indeo4_decoder_select="ividsp"
2054 indeo5_decoder_select="ividsp"
2055 interplay_video_decoder_select="hpeldsp"
2056 jpegls_decoder_select="mjpeg_decoder"
2057 jv_decoder_select="blockdsp"
2058 lagarith_decoder_select="huffyuvdsp"
2059 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2060 magicyuv_decoder_select="huffyuvdsp"
2061 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2062 metasound_decoder_select="lsp mdct sinewin"
2063 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2064 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2065 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2066 mjpegb_decoder_select="mjpeg_decoder"
2067 mlp_decoder_select="mlp_parser"
2068 motionpixels_decoder_select="bswapdsp"
2069 mp1_decoder_select="mpegaudio"
2070 mp1float_decoder_select="mpegaudio"
2071 mp2_decoder_select="mpegaudio"
2072 mp2float_decoder_select="mpegaudio"
2073 mp3_decoder_select="mpegaudio"
2074 mp3adu_decoder_select="mpegaudio"
2075 mp3adufloat_decoder_select="mpegaudio"
2076 mp3float_decoder_select="mpegaudio"
2077 mp3on4_decoder_select="mpegaudio"
2078 mp3on4float_decoder_select="mpegaudio"
2079 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2080 mpc8_decoder_select="mpegaudiodsp"
2081 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2082 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2083 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2084 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2085 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2086 mpeg4_encoder_select="h263_encoder"
2087 msa1_decoder_select="mss34dsp"
2088 msmpeg4v1_decoder_select="h263_decoder"
2089 msmpeg4v2_decoder_select="h263_decoder"
2090 msmpeg4v2_encoder_select="h263_encoder"
2091 msmpeg4v3_decoder_select="h263_decoder"
2092 msmpeg4v3_encoder_select="h263_encoder"
2093 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2094 mts2_decoder_select="mss34dsp"
2095 mxpeg_decoder_select="mjpeg_decoder"
2096 nellymoser_decoder_select="mdct sinewin"
2097 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2098 nuv_decoder_select="idctdsp lzo"
2099 on2avc_decoder_select="mdct"
2100 opus_decoder_deps="avresample"
2101 opus_decoder_select="imdct15"
2102 png_decoder_deps="zlib"
2103 png_encoder_deps="zlib"
2104 png_encoder_select="huffyuvencdsp"
2105 prores_decoder_select="idctdsp"
2106 prores_encoder_select="fdctdsp"
2107 qcelp_decoder_select="lsp"
2108 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2109 ra_144_encoder_select="audio_frame_queue lpc"
2110 ralf_decoder_select="golomb"
2111 rscc_decoder_deps="zlib"
2112 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2113 rv10_encoder_select="h263_encoder"
2114 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2115 rv20_encoder_select="h263_encoder"
2116 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2117 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2118 screenpresso_decoder_deps="zlib"
2119 sipr_decoder_select="lsp"
2120 sp5x_decoder_select="mjpeg_decoder"
2121 svq1_decoder_select="hpeldsp"
2122 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2123 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2124 svq3_decoder_suggest="zlib"
2125 tak_decoder_select="audiodsp"
2126 tdsc_decoder_deps="zlib"
2127 tdsc_decoder_select="mjpeg_decoder"
2128 theora_decoder_select="vp3_decoder"
2129 thp_decoder_select="mjpeg_decoder"
2130 tiff_decoder_suggest="zlib"
2131 tiff_encoder_suggest="zlib"
2132 truehd_decoder_select="mlp_decoder"
2133 truemotion2_decoder_select="bswapdsp"
2134 truespeech_decoder_select="bswapdsp"
2135 tscc_decoder_deps="zlib"
2136 txd_decoder_select="texturedsp"
2137 twinvq_decoder_select="mdct lsp sinewin"
2138 utvideo_decoder_select="bswapdsp huffyuvdsp"
2139 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2140 vble_decoder_select="huffyuvdsp"
2141 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2142 vc1image_decoder_select="vc1_decoder"
2143 vorbis_decoder_select="mdct"
2144 vorbis_encoder_select="mdct"
2145 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2146 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2147 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2148 vp6a_decoder_select="vp6_decoder"
2149 vp6f_decoder_select="vp6_decoder"
2150 vp7_decoder_select="h264pred videodsp vp8dsp"
2151 vp8_decoder_select="h264pred videodsp vp8dsp"
2152 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2153 webp_decoder_select="vp8_decoder"
2154 wmapro_decoder_select="mdct sinewin wma_freqs"
2155 wmav1_decoder_select="mdct sinewin wma_freqs"
2156 wmav1_encoder_select="mdct sinewin wma_freqs"
2157 wmav2_decoder_select="mdct sinewin wma_freqs"
2158 wmav2_encoder_select="mdct sinewin wma_freqs"
2159 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2160 wmv1_decoder_select="h263_decoder"
2161 wmv1_encoder_select="h263_encoder"
2162 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2163 wmv2_encoder_select="h263_encoder wmv2dsp"
2164 wmv3_decoder_select="vc1_decoder"
2165 wmv3image_decoder_select="wmv3_decoder"
2166 zerocodec_decoder_deps="zlib"
2167 zlib_decoder_deps="zlib"
2168 zlib_encoder_deps="zlib"
2169 zmbv_decoder_deps="zlib"
2170 zmbv_encoder_deps="zlib"
2171
2172 # hardware accelerators
2173 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2174 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2175 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2176 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2177
2178 h263_vaapi_hwaccel_deps="vaapi"
2179 h263_vaapi_hwaccel_select="h263_decoder"
2180 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2181 h264_cuvid_hwaccel_select="h264_decoder"
2182 h264_d3d11va_hwaccel_deps="d3d11va"
2183 h264_d3d11va_hwaccel_select="h264_decoder"
2184 h264_d3d11va2_hwaccel_deps="d3d11va"
2185 h264_d3d11va2_hwaccel_select="h264_decoder"
2186 h264_dxva2_hwaccel_deps="dxva2"
2187 h264_dxva2_hwaccel_select="h264_decoder"
2188 h264_mmal_hwaccel_deps="mmal"
2189 h264_qsv_hwaccel_deps="libmfx"
2190 h264_vaapi_hwaccel_deps="vaapi"
2191 h264_vaapi_hwaccel_select="h264_decoder"
2192 h264_vda_hwaccel_deps="vda"
2193 h264_vda_hwaccel_select="h264_decoder"
2194 h264_vda_old_hwaccel_deps="vda"
2195 h264_vda_old_hwaccel_select="h264_decoder"
2196 h264_vdpau_hwaccel_deps="vdpau"
2197 h264_vdpau_hwaccel_select="h264_decoder"
2198 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2199 hevc_cuvid_hwaccel_select="hevc_decoder"
2200 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2201 hevc_d3d11va_hwaccel_select="hevc_decoder"
2202 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2203 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2204 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2205 hevc_dxva2_hwaccel_select="hevc_decoder"
2206 hevc_qsv_hwaccel_deps="libmfx"
2207 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2208 hevc_vaapi_hwaccel_select="hevc_decoder"
2209 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2210 hevc_vdpau_hwaccel_select="hevc_decoder"
2211 mpeg1_vdpau_hwaccel_deps="vdpau"
2212 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2213 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2214 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2215 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2216 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2217 mpeg2_dxva2_hwaccel_deps="dxva2"
2218 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2219 mpeg2_mmal_hwaccel_deps="mmal"
2220 mpeg2_qsv_hwaccel_deps="libmfx"
2221 mpeg2_vaapi_hwaccel_deps="vaapi"
2222 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2223 mpeg2_vdpau_hwaccel_deps="vdpau"
2224 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2225 mpeg4_vaapi_hwaccel_deps="vaapi"
2226 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2227 mpeg4_vdpau_hwaccel_deps="vdpau"
2228 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2229 vc1_d3d11va_hwaccel_deps="d3d11va"
2230 vc1_d3d11va_hwaccel_select="vc1_decoder"
2231 vc1_d3d11va2_hwaccel_deps="d3d11va"
2232 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2233 vc1_dxva2_hwaccel_deps="dxva2"
2234 vc1_dxva2_hwaccel_select="vc1_decoder"
2235 vc1_mmal_hwaccel_deps="mmal"
2236 vc1_qsv_hwaccel_deps="libmfx"
2237 vc1_vaapi_hwaccel_deps="vaapi"
2238 vc1_vaapi_hwaccel_select="vc1_decoder"
2239 vc1_vdpau_hwaccel_deps="vdpau"
2240 vc1_vdpau_hwaccel_select="vc1_decoder"
2241 vp8_qsv_hwaccel_deps="libmfx"
2242 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2243 vp8_vaapi_hwaccel_select="vp8_decoder"
2244 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2245 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2246 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2247 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2248 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2249
2250 # hardware-accelerated codecs
2251 nvenc_deps_any="libdl LoadLibrary"
2252 omx_deps="libdl pthreads"
2253 omx_rpi_select="omx"
2254 qsv_deps="libmfx"
2255 qsvdec_select="qsv"
2256 qsvenc_select="qsv"
2257 qsvvpp_select="qsv"
2258 vaapi_encode_deps="vaapi"
2259
2260 hwupload_cuda_filter_deps="cuda"
2261 scale_npp_filter_deps="cuda libnpp"
2262
2263 h264_mmal_decoder_deps="mmal"
2264 h264_nvenc_encoder_deps="nvenc"
2265 h264_omx_encoder_deps="omx"
2266 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2267 h264_qsv_encoder_select="qsvenc"
2268 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2269 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2270 hevc_nvenc_encoder_deps="nvenc"
2271 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2272 hevc_qsv_encoder_select="hevcparse qsvenc"
2273 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2274 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2275 mjpeg_qsv_encoder_deps="libmfx"
2276 mjpeg_qsv_encoder_select="qsvenc"
2277 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2278 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2279 mpeg2_mmal_decoder_deps="mmal"
2280 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2281 mpeg2_qsv_encoder_select="qsvenc"
2282 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2283 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2284 mpeg4_omx_encoder_deps="omx"
2285 vc1_mmal_decoder_deps="mmal"
2286 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2287 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2288 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2289 vp8_vaapi_encoder_select="vaapi_encode"
2290 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2291 vp9_vaapi_encoder_select="vaapi_encode"
2292
2293 nvenc_h264_encoder_select="h264_nvenc_encoder"
2294 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2295
2296 # parsers
2297 aac_parser_select="adts_header"
2298 h264_parser_select="golomb h264dsp h264parse"
2299 hevc_parser_select="hevcparse"
2300 mpegaudio_parser_select="mpegaudioheader"
2301 mpegvideo_parser_select="mpegvideo"
2302 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2303 vc1_parser_select="vc1dsp"
2304
2305 # bitstream_filters
2306 aac_adtstoasc_bsf_select="adts_header"
2307 h264_metadata_bsf_select="cbs_h264"
2308 h264_redundant_pps_bsf_select="cbs_h264"
2309 hevc_metadata_bsf_select="cbs_h265"
2310 mjpeg2jpeg_bsf_select="jpegtables"
2311 mpeg2_metadata_bsf_select="cbs_mpeg2"
2312 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2313
2314 # external libraries
2315 avisynth_deps="LoadLibrary"
2316 avxsynth_deps="libdl"
2317 avisynth_demuxer_deps_any="avisynth avxsynth"
2318 avisynth_demuxer_select="riffdec"
2319 libdcadec_decoder_deps="libdcadec"
2320 libfaac_encoder_deps="libfaac"
2321 libfaac_encoder_select="audio_frame_queue"
2322 libfdk_aac_decoder_deps="libfdk_aac"
2323 libfdk_aac_encoder_deps="libfdk_aac"
2324 libfdk_aac_encoder_select="audio_frame_queue"
2325 libgsm_decoder_deps="libgsm"
2326 libgsm_encoder_deps="libgsm"
2327 libgsm_ms_decoder_deps="libgsm"
2328 libgsm_ms_encoder_deps="libgsm"
2329 libilbc_decoder_deps="libilbc"
2330 libilbc_encoder_deps="libilbc"
2331 libkvazaar_encoder_deps="libkvazaar"
2332 libmp3lame_encoder_deps="libmp3lame"
2333 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2334 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2335 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2336 libopencore_amrnb_encoder_select="audio_frame_queue"
2337 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2338 libopenh264_decoder_deps="libopenh264"
2339 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2340 libopenh264_encoder_deps="libopenh264"
2341 libopenjpeg_decoder_deps="libopenjpeg"
2342 libopenjpeg_encoder_deps="libopenjpeg"
2343 libopus_decoder_deps="libopus"
2344 libopus_encoder_deps="libopus"
2345 libopus_encoder_select="audio_frame_queue"
2346 libschroedinger_decoder_deps="libschroedinger"
2347 libschroedinger_encoder_deps="libschroedinger"
2348 libspeex_decoder_deps="libspeex"
2349 libspeex_encoder_deps="libspeex"
2350 libspeex_encoder_select="audio_frame_queue"
2351 libtheora_encoder_deps="libtheora"
2352 libtwolame_encoder_deps="libtwolame"
2353 libvo_aacenc_encoder_deps="libvo_aacenc"
2354 libvo_aacenc_encoder_select="audio_frame_queue"
2355 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2356 libvorbis_encoder_deps="libvorbis"
2357 libvorbis_encoder_select="audio_frame_queue"
2358 libvpx_vp8_decoder_deps="libvpx"
2359 libvpx_vp8_encoder_deps="libvpx"
2360 libvpx_vp9_decoder_deps="libvpx"
2361 libvpx_vp9_encoder_deps="libvpx"
2362 libwavpack_encoder_deps="libwavpack"
2363 libwavpack_encoder_select="audio_frame_queue"
2364 libwebp_encoder_deps="libwebp"
2365 libx262_encoder_deps="libx262"
2366 libx264_encoder_deps="libx264"
2367 libx265_encoder_deps="libx265"
2368 libxavs_encoder_deps="libxavs"
2369 libxvid_encoder_deps="libxvid mkstemp"
2370
2371 # demuxers / muxers
2372 ac3_demuxer_select="ac3_parser"
2373 asf_demuxer_select="riffdec"
2374 asf_muxer_select="riffenc"
2375 asf_stream_muxer_select="asf_muxer"
2376 avi_demuxer_select="iso_media riffdec"
2377 avi_muxer_select="riffenc"
2378 caf_demuxer_select="iso_media riffdec"
2379 dash_muxer_select="mp4_muxer"
2380 dirac_demuxer_select="dirac_parser"
2381 dv_demuxer_select="dvprofile"
2382 dv_muxer_select="dvprofile"
2383 dxa_demuxer_select="riffdec"
2384 eac3_demuxer_select="ac3_parser"
2385 f4v_muxer_select="mov_muxer"
2386 flac_demuxer_select="flac_parser"
2387 hds_muxer_select="flv_muxer"
2388 hls_muxer_select="mpegts_muxer"
2389 ipod_muxer_select="mov_muxer"
2390 ismv_muxer_select="mov_muxer"
2391 matroska_audio_muxer_select="matroska_muxer"
2392 matroska_demuxer_select="iso_media riffdec"
2393 matroska_demuxer_suggest="bzlib lzo zlib"
2394 matroska_muxer_select="iso_media riffenc"
2395 mmf_muxer_select="riffenc"
2396 mov_demuxer_select="iso_media riffdec"
2397 mov_demuxer_suggest="zlib"
2398 mov_muxer_select="iso_media riffenc rtpenc_chain"
2399 mp3_demuxer_select="mpegaudio_parser"
2400 mp3_muxer_select="mpegaudioheader"
2401 mp4_muxer_select="mov_muxer"
2402 mpegts_demuxer_select="iso_media"
2403 mpegts_muxer_select="adts_muxer latm_muxer"
2404 mpegtsraw_demuxer_select="mpegts_demuxer"
2405 mxf_d10_muxer_select="mxf_muxer"
2406 nut_muxer_select="riffenc"
2407 nuv_demuxer_select="riffdec"
2408 oga_muxer_select="ogg_muxer"
2409 ogg_demuxer_select="dirac_parse"
2410 opus_muxer_select="ogg_muxer"
2411 psp_muxer_select="mov_muxer"
2412 rtp_demuxer_select="sdp_demuxer"
2413 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2414 rtsp_demuxer_select="http_protocol rtpdec"
2415 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2416 sap_demuxer_select="sdp_demuxer"
2417 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2418 sdp_demuxer_select="rtpdec"
2419 smoothstreaming_muxer_select="ismv_muxer"
2420 spdif_demuxer_select="adts_header"
2421 spdif_muxer_select="adts_header"
2422 spx_muxer_select="ogg_muxer"
2423 swf_demuxer_suggest="zlib"
2424 tak_demuxer_select="tak_parser"
2425 tg2_muxer_select="mov_muxer"
2426 tgp_muxer_select="mov_muxer"
2427 w64_demuxer_select="wav_demuxer"
2428 wav_demuxer_select="riffdec"
2429 wav_muxer_select="riffenc"
2430 webm_muxer_select="iso_media riffenc"
2431 wtv_demuxer_select="mpegts_demuxer riffdec"
2432 xmv_demuxer_select="riffdec"
2433 xwma_demuxer_select="riffdec"
2434
2435 # indevs
2436 alsa_indev_deps="alsa"
2437 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2438 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2439 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2440 fbdev_indev_deps="linux_fb_h"
2441 jack_indev_deps="libjack"
2442 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2443 libcdio_indev_deps="libcdio"
2444 libdc1394_indev_deps="libdc1394"
2445 oss_indev_deps_any="sys_soundcard_h"
2446 pulse_indev_deps="libpulse"
2447 sndio_indev_deps="sndio"
2448 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2449 vfwcap_indev_deps="vfw32 vfwcap_defines"
2450 xcbgrab_indev_deps="libxcb libxcb_shape"
2451 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2452
2453 # protocols
2454 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2455 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2456 ffrtmpcrypt_protocol_select="tcp_protocol"
2457 ffrtmphttp_protocol_conflict="librtmp_protocol"
2458 ffrtmphttp_protocol_select="http_protocol"
2459 gopher_protocol_select="network"
2460 http_protocol_select="tcp_protocol"
2461 http_protocol_suggest="zlib"
2462 httpproxy_protocol_select="tcp_protocol"
2463 httpproxy_protocol_suggest="zlib"
2464 https_protocol_select="tls_protocol"
2465 https_protocol_suggest="zlib"
2466 icecast_protocol_select="http_protocol"
2467 librtmp_protocol_deps="librtmp"
2468 librtmpe_protocol_deps="librtmp"
2469 librtmps_protocol_deps="librtmp"
2470 librtmpt_protocol_deps="librtmp"
2471 librtmpte_protocol_deps="librtmp"
2472 mmsh_protocol_select="http_protocol"
2473 mmst_protocol_select="network"
2474 rtmp_protocol_conflict="librtmp_protocol"
2475 rtmp_protocol_select="tcp_protocol"
2476 rtmp_protocol_suggest="zlib"
2477 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2478 rtmpe_protocol_suggest="zlib"
2479 rtmps_protocol_conflict="librtmp_protocol"
2480 rtmps_protocol_select="tls_protocol"
2481 rtmps_protocol_suggest="zlib"
2482 rtmpt_protocol_select="ffrtmphttp_protocol"
2483 rtmpt_protocol_suggest="zlib"
2484 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2485 rtmpte_protocol_suggest="zlib"
2486 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2487 rtmpts_protocol_suggest="zlib"
2488 rtp_protocol_select="udp_protocol"
2489 sctp_protocol_deps="struct_sctp_event_subscribe"
2490 sctp_protocol_select="network"
2491 srtp_protocol_select="rtp_protocol srtp"
2492 tcp_protocol_select="network"
2493 tls_protocol_deps_any="gnutls openssl"
2494 tls_protocol_select="tcp_protocol"
2495 udp_protocol_select="network"
2496 unix_protocol_deps="sys_un_h"
2497 unix_protocol_select="network"
2498
2499 # filters
2500 asyncts_filter_deps="avresample"
2501 blackframe_filter_deps="gpl"
2502 boxblur_filter_deps="gpl"
2503 bs2b_filter_deps="libbs2b"
2504 cropdetect_filter_deps="gpl"
2505 deinterlace_qsv_filter_deps="libmfx"
2506 deinterlace_vaapi_filter_deps="vaapi"
2507 delogo_filter_deps="gpl"
2508 drawtext_filter_deps="libfreetype"
2509 drawtext_filter_suggest="libfontconfig"
2510 frei0r_filter_deps="frei0r libdl"
2511 frei0r_src_filter_deps="frei0r libdl"
2512 hdcd_filter_deps="libhdcd"
2513 hqdn3d_filter_deps="gpl"
2514 interlace_filter_deps="gpl"
2515 movie_filter_deps="avcodec avformat"
2516 ocv_filter_deps="libopencv"
2517 overlay_qsv_filter_deps="libmfx"
2518 overlay_qsv_filter_select="qsvvpp"
2519 resample_filter_deps="avresample"
2520 scale_filter_deps="swscale"
2521 scale_qsv_filter_deps="libmfx"
2522 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2523 vpp_qsv_filter_deps="libmfx"
2524 vpp_qsv_filter_select="qsvvpp"
2525
2526 # examples
2527 decode_audio_example_deps="avcodec avutil"
2528 decode_video_example_deps="avcodec avutil"
2529 encode_audio_example_deps="avcodec avutil"
2530 encode_video_example_deps="avcodec avutil"
2531 filter_audio_example_deps="avfilter avutil"
2532 metadata_example_deps="avformat avutil"
2533 output_example_deps="avcodec avformat avresample avutil swscale"
2534 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2535 transcode_aac_example_deps="avcodec avformat avresample"
2536
2537 # EXTRALIBS_LIST
2538 cpu_init_extralibs="pthreads_extralibs"
2539 cws2fws_extralibs="zlib_extralibs"
2540
2541 # libraries, in linking order
2542 avcodec_deps="avutil"
2543 avcodec_select="null_bsf"
2544 avdevice_deps="avformat avcodec avutil"
2545 avfilter_deps="avutil"
2546 avformat_deps="avcodec avutil"
2547 avformat_suggest="network"
2548 avresample_deps="avutil"
2549 swscale_deps="avutil"
2550
2551 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2552 avdevice_extralibs="libm_extralibs"
2553 avformat_extralibs="libm_extralibs"
2554 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2555 avresample_extralibs="libm_extralibs"
2556 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"
2557 swscale_extralibs="libm_extralibs"
2558
2559 # programs
2560 avconv_deps="avcodec avfilter avformat avresample swscale"
2561 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2562 fps_filter null_filter resample_filter scale_filter
2563 trim_filter"
2564 avconv_suggest="psapi shell32"
2565 avplay_deps="avcodec avfilter avformat avresample sdl"
2566 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2567 avplay_suggest="shell32"
2568 avprobe_deps="avcodec avformat"
2569 avprobe_suggest="shell32"
2570
2571 # documentation
2572 pod2man_deps="doc"
2573 texi2html_deps="doc"
2574
2575 # default parameters
2576
2577 logfile="avbuild/config.log"
2578
2579 # installation paths
2580 prefix_default="/usr/local"
2581 bindir_default='${prefix}/bin'
2582 datadir_default='${prefix}/share/avconv'
2583 docdir_default='${prefix}/share/doc/libav'
2584 incdir_default='${prefix}/include'
2585 libdir_default='${prefix}/lib'
2586 mandir_default='${prefix}/share/man'
2587 shlibdir_default="$libdir_default"
2588
2589 # toolchain
2590 ar_default="ar"
2591 cc_default="gcc"
2592 host_cc_default="gcc"
2593 x86asmexe_default="nasm"
2594 ln_s="ln -s -f"
2595 nm_default="nm -g"
2596 pkg_config_default=pkg-config
2597 ranlib="ranlib"
2598 strip="strip"
2599 version_script='--version-script'
2600
2601 # machine
2602 arch_default=$(uname -m)
2603 cpu="generic"
2604 intrinsics="none"
2605
2606 # OS
2607 target_os_default=$(tolower $(uname -s))
2608 host_os=$target_os_default
2609
2610 # configurable options
2611 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2612
2613 enable asm
2614 enable debug
2615 enable doc
2616 enable faan faandct faanidct
2617 enable optimizations
2618 enable safe_bitstream_reader
2619 enable static
2620 enable swscale_alpha
2621 enable valgrind_backtrace
2622
2623 # By default, enable only those hwaccels that have no external dependencies.
2624 enable d3d11va dxva2 vda vdpau
2625
2626 # internal components are enabled by default
2627 enable $EXTRALIBS_LIST
2628
2629 # Avoid external, non-system, libraries getting enabled by dependency resolution
2630 disable $EXTERNAL_LIBRARY_LIST
2631
2632 # build settings
2633 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2634 LIBPREF="lib"
2635 LIBSUF=".a"
2636 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2637 SLIBPREF="lib"
2638 SLIBSUF=".so"
2639 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2640 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2641 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2642 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2643 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2644 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2645 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2646
2647 asflags_filter=echo
2648 cflags_filter=echo
2649 ldflags_filter=echo
2650
2651 AS_C='-c'
2652 AS_O='-o $@'
2653 CC_C='-c'
2654 CC_E='-E -o $@'
2655 CC_O='-o $@'
2656 OBJCC_C='-c'
2657 OBJCC_E='-E -o $@'
2658 OBJCC_O='-o $@'
2659 X86ASM_O='-o $@'
2660 LD_O='-o $@'
2661 LD_LIB='-l%'
2662 LD_PATH='-L'
2663 HOSTCC_C='-c'
2664 HOSTCC_E='-E -o $@'
2665 HOSTCC_O='-o $@'
2666 HOSTLD_O='-o $@'
2667
2668 host_extralibs='-lm'
2669 host_cflags_filter=echo
2670 host_ldflags_filter=echo
2671
2672 target_path='$(CURDIR)'
2673
2674 # since the object filename is not given with the -MM flag, the compiler
2675 # is only able to print the basename, and we must add the path ourselves
2676 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2677 DEPFLAGS='-MM'
2678
2679 mkdir -p avbuild
2680
2681 # find source path
2682 if test -f configure; then
2683 source_path=.
2684 else
2685 source_path=$(cd $(dirname "$0"); pwd)
2686 echo "$source_path" | grep -q '[[:blank:]]' &&
2687 die "Out of tree builds are impossible with whitespace in source path."
2688 test -e "$source_path/config.h" &&
2689 die "Out of tree builds are impossible with config.h in source dir."
2690 fi
2691
2692 for v in "$@"; do
2693 r=${v#*=}
2694 l=${v%"$r"}
2695 r=$(sh_quote "$r")
2696 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2697 done
2698
2699 find_things(){
2700 thing=$1
2701 pattern=$2
2702 file=$source_path/$3
2703 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2704 }
2705
2706 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2707 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2708 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2709 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2710 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2711 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2712 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2713 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2714
2715 find_things_extern(){
2716 thing=$1
2717 pattern=$2
2718 file=$source_path/$3
2719 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2720 }
2721
2722 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2723 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2724
2725 AVCODEC_COMPONENTS_LIST="
2726 $BSF_LIST
2727 $DECODER_LIST
2728 $ENCODER_LIST
2729 $HWACCEL_LIST
2730 $PARSER_LIST
2731 "
2732
2733 AVDEVICE_COMPONENTS_LIST="
2734 $INDEV_LIST
2735 "
2736
2737 AVFILTER_COMPONENTS_LIST="
2738 $FILTER_LIST
2739 "
2740
2741 AVFORMAT_COMPONENTS_LIST="
2742 $DEMUXER_LIST
2743 $MUXER_LIST
2744 $PROTOCOL_LIST
2745 "
2746
2747 ALL_COMPONENTS="
2748 $AVCODEC_COMPONENTS_LIST
2749 $AVDEVICE_COMPONENTS_LIST
2750 $AVFILTER_COMPONENTS_LIST
2751 $AVFORMAT_COMPONENTS_LIST
2752 "
2753
2754 for n in $COMPONENT_LIST; do
2755 v=$(toupper ${n%s})_LIST
2756 eval enable \$$v
2757 eval ${n}_if_any="\$$v"
2758 done
2759
2760 enable $ARCH_EXT_LIST
2761
2762 die_unknown(){
2763 echo "Unknown option \"$1\"."
2764 echo "See $0 --help for available options."
2765 exit 1
2766 }
2767
2768 print_3_columns() {
2769 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2770 }
2771
2772 show_list() {
2773 suffix=_$1
2774 shift
2775 echo $* | sed s/$suffix//g | print_3_columns
2776 exit 0
2777 }
2778
2779 for opt do
2780 optval="${opt#*=}"
2781 case "$opt" in
2782 --extra-ldflags=*)
2783 add_ldflags $optval
2784 ;;
2785 --extra-ldexeflags=*)
2786 add_ldexeflags $optval
2787 ;;
2788 --extra-ldsoflags=*)
2789 add_ldsoflags $optval
2790 ;;
2791 --extra-libs=*)
2792 add_extralibs $optval
2793 ;;
2794 --disable-devices)
2795 disable $INDEV_LIST
2796 ;;
2797 --enable-debug=*)
2798 debuglevel="$optval"
2799 ;;
2800 --disable-programs)
2801 disable $PROGRAM_LIST
2802 ;;
2803 --disable-everything)
2804 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2805 ;;
2806 --disable-all)
2807 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2808 disable $LIBRARY_LIST $PROGRAM_LIST doc
2809 ;;
2810 --enable-*=*|--disable-*=*)
2811 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2812 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2813 eval list=\$$(toupper $thing)_LIST
2814 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2815 $action $(filter "$name" $list)
2816 ;;
2817 --enable-yasm|--disable-yasm)
2818 warn "The ${opt} option is only provided for compatibility and will be\n"\
2819 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2820 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2821 ;;
2822 --enable-?*|--disable-?*)
2823 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2824 if is_in $option $COMPONENT_LIST; then
2825 test $action = disable && action=unset
2826 eval $action \$$(toupper ${option%s})_LIST
2827 elif is_in $option $CMDLINE_SELECT; then
2828 $action $option
2829 else
2830 die_unknown $opt
2831 fi
2832 ;;
2833 --list-*)
2834 NAME="${opt#--list-}"
2835 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2836 NAME=${NAME%s}
2837 eval show_list $NAME \$$(toupper $NAME)_LIST
2838 ;;
2839 --help|-h) show_help
2840 ;;
2841 --quiet|-q) quiet=yes
2842 ;;
2843 *)
2844 optname="${opt%%=*}"
2845 optname="${optname#--}"
2846 optname=$(echo "$optname" | sed 's/-/_/g')
2847 if is_in $optname $CMDLINE_SET; then
2848 eval $optname='$optval'
2849 elif is_in $optname $CMDLINE_APPEND; then
2850 append $optname "$optval"
2851 else
2852 die_unknown $opt
2853 fi
2854 ;;
2855 esac
2856 done
2857
2858 for e in $env; do
2859 eval "export $e"
2860 done
2861
2862 disabled logging && logfile=/dev/null
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 $toolchain"
3001 ;;
3002 esac
3003
3004 test -n "$cross_prefix" && enable cross_compile
3005
3006 if enabled cross_compile; then
3007 test -n "$arch" && test -n "$target_os" ||
3008 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3009 fi
3010
3011 ar_default="${cross_prefix}${ar_default}"
3012 cc_default="${cross_prefix}${cc_default}"
3013 objcc_default="${cross_prefix}${objcc_default}"
3014 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3015 nm_default="${cross_prefix}${nm_default}"
3016 pkg_config_default="${cross_prefix}${pkg_config_default}"
3017 ranlib="${cross_prefix}${ranlib}"
3018 strip="${cross_prefix}${strip}"
3019
3020 sysinclude_default="${sysroot}/usr/include"
3021
3022 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3023 enabled cross_compile || host_cc_default=$cc
3024 set_default host_cc
3025
3026 if ! $pkg_config --version >/dev/null 2>&1; then
3027 warn "$pkg_config not found, library detection may fail."
3028 pkg_config=false
3029 fi
3030
3031 exesuf() {
3032 case $1 in
3033 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3034 esac
3035 }
3036
3037 EXESUF=$(exesuf $target_os)
3038 HOSTEXESUF=$(exesuf $host_os)
3039
3040 # set temporary file name
3041 : ${TMPDIR:=$TEMPDIR}
3042 : ${TMPDIR:=$TMP}
3043 : ${TMPDIR:=/tmp}
3044
3045 if ! check_cmd mktemp -u XXXXXX; then
3046 # simple replacement for missing mktemp
3047 # NOT SAFE FOR GENERAL USE
3048 mktemp(){
3049 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3050 echo "$tmpname"
3051 mkdir "$tmpname"
3052 }
3053 fi
3054
3055 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3056 die "Unable to create temporary directory in $TMPDIR."
3057
3058 tmpfile(){
3059 tmp="${AVTMPDIR}/test"$2
3060 (set -C; exec > $tmp) 2> /dev/null ||
3061 die "Unable to create temporary file in $AVTMPDIR."
3062 eval $1=$tmp
3063 }
3064
3065 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3066 trap 'exit 2' INT
3067
3068 tmpfile TMPASM .asm
3069 tmpfile TMPC .c
3070 tmpfile TMPE $EXESUF
3071 tmpfile TMPH .h
3072 tmpfile TMPO .o
3073 tmpfile TMPS .S
3074 tmpfile TMPSH .sh
3075 tmpfile TMPV .ver
3076
3077 unset -f mktemp
3078
3079 chmod +x $TMPE
3080
3081 # make sure we can execute files in $TMPDIR
3082 cat > $TMPSH 2>> $logfile <<EOF
3083 #! /bin/sh
3084 EOF
3085 chmod +x $TMPSH >> $logfile 2>&1
3086 if ! $TMPSH >> $logfile 2>&1; then
3087 cat <<EOF
3088 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3089 variable to another directory and make sure that it is not mounted noexec.
3090 EOF
3091 die "Sanity test failed."
3092 fi
3093
3094 armasm_flags(){
3095 for flag; do
3096 case $flag in
3097 # Filter out MSVC cl.exe options from cflags that shouldn't
3098 # be passed to gas-preprocessor
3099 -M[TD]*) ;;
3100 *) echo $flag ;;
3101 esac
3102 done
3103 }
3104
3105 cparser_flags(){
3106 for flag; do
3107 case $flag in
3108 -Wno-switch) echo -Wno-switch-enum ;;
3109 -Wno-format-zero-length) ;;
3110 -Wdisabled-optimization) ;;
3111 -Wno-pointer-sign) echo -Wno-other ;;
3112 *) echo $flag ;;
3113 esac
3114 done
3115 }
3116
3117 msvc_common_flags(){
3118 for flag; do
3119 case $flag in
3120 # In addition to specifying certain flags under the compiler
3121 # specific filters, they must be specified here as well or else the
3122 # generic catch all at the bottom will print the original flag.
3123 -Wall) ;;
3124 -Wextra) ;;
3125 -std=c99) ;;
3126 # Common flags
3127 -fomit-frame-pointer) ;;
3128 -g) echo -Z7 ;;
3129 -fno-math-errno) ;;
3130 -fno-common) ;;
3131 -fno-signed-zeros) ;;
3132 -fPIC) ;;
3133 -mthumb) ;;
3134 -march=*) ;;
3135 -lz) echo zlib.lib ;;
3136 -lx264) echo libx264.lib ;;
3137 -l*) echo ${flag#-l}.lib ;;
3138 -L*) echo -libpath:${flag#-L} ;;
3139 *) echo $flag ;;
3140 esac
3141 done
3142 }
3143
3144 msvc_flags(){
3145 msvc_common_flags "$@"
3146 for flag; do
3147 case $flag in
3148 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3149 -wd4554 ;;
3150 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3151 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3152 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3153 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3154 esac
3155 done
3156 }
3157
3158 icl_flags(){
3159 msvc_common_flags "$@"
3160 for flag; do
3161 case $flag in
3162 # Despite what Intel's documentation says -Wall, which is supported
3163 # on Windows, does enable remarks so disable them here.
3164 -Wall) echo $flag -Qdiag-disable:remark ;;
3165 -std=c99) echo -Qstd=c99 ;;
3166 esac
3167 done
3168 }
3169
3170 suncc_flags(){
3171 for flag; do
3172 case $flag in
3173 -march=*|-mcpu=*)
3174 case "${flag#*=}" in
3175 native) echo -xtarget=native ;;
3176 v9|niagara) echo -xarch=sparc ;;
3177 ultrasparc) echo -xarch=sparcvis ;;
3178 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3179 i586|pentium) echo -xchip=pentium ;;
3180 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3181 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3182 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3183 pentium4*) echo -xtarget=pentium4 ;;
3184 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3185 *-sse3) echo -xarch=sse3 ;;
3186 core2) echo -xarch=ssse3 -xchip=core2 ;;
3187 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3188 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3189 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3190 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3191 k8|opteron|athlon64|athlon-fx)
3192 echo -xarch=sse2a ;;
3193 athlon*) echo -xarch=pentium_proa ;;
3194 esac
3195 ;;
3196 -std=c99) echo -xc99 ;;
3197 -fomit-frame-pointer) echo -xregs=frameptr ;;
3198 -fPIC) echo -KPIC -xcode=pic32 ;;
3199 -W*,*) echo $flag ;;
3200 -f*-*|-W*|-mimpure-text) ;;
3201 -shared) echo -G ;;
3202 *) echo $flag ;;
3203 esac
3204 done
3205 }
3206
3207 probe_cc(){
3208 pfx=$1
3209 _cc=$2
3210
3211 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3212 unset _ld_o _ldflags _ld_lib _ld_path
3213 unset _depflags _DEPCMD _DEPFLAGS
3214 _flags_filter=echo
3215
3216 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3217 _type=llvm_gcc
3218 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3219 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3220 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3221 _cflags_speed='-O3'
3222 _cflags_size='-Os'
3223 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3224 _type=gcc
3225 gcc_version=$($_cc --version | head -n1)
3226 gcc_basever=$($_cc -dumpversion)
3227 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3228 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3229 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3230 if ! $_cc -dumpversion | grep -q '^2\.'; then
3231 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3232 fi
3233 _cflags_speed='-O3'
3234 _cflags_size='-Os'
3235 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3236 _type=icc
3237 _ident=$($_cc --version | head -n1)
3238 _depflags='-MMD'
3239 _cflags_speed='-O3'
3240 _cflags_size='-Os'
3241 _cflags_noopt='-O1'
3242 elif $_cc -v 2>&1 | grep -q xlc; then
3243 _type=xlc
3244 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3245 _cflags_speed='-O5'
3246 _cflags_size='-O5 -qcompact'
3247 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3248 test -d "$sysroot" || die "No valid sysroot specified."
3249 _type=armcc
3250 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3251 armcc_conf="$PWD/armcc.conf"
3252 $_cc --arm_linux_configure \
3253 --arm_linux_config_file="$armcc_conf" \
3254 --configure_sysroot="$sysroot" \
3255 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3256 die "Error creating armcc configuration file."
3257 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3258 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3259 as_default="${cross_prefix}gcc"
3260 _depflags='-MMD'
3261 _cflags_speed='-O3'
3262 _cflags_size='-Os'
3263 elif $_cc -v 2>&1 | grep -q clang; then
3264 _type=clang
3265 _ident=$($_cc --version 2>/dev/null | head -n1)
3266 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3267 _cflags_speed='-O3'
3268 _cflags_size='-Os'
3269 elif $_cc -V 2>&1 | grep -q Sun; then
3270 _type=suncc
3271 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3272 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3273 _DEPFLAGS='-xM1 -xc99'
3274 _ldflags='-std=c99'
3275 _cflags_speed='-O5'
3276 _cflags_size='-O5 -xspace'
3277 _flags_filter=suncc_flags
3278 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3279 _type=pathscale
3280 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3281 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3282 _cflags_speed='-O2'
3283 _cflags_size='-Os'
3284 _flags_filter='filter_out -Wdisabled-optimization'
3285 elif $_cc -v 2>&1 | grep -q Open64; then
3286 _type=open64
3287 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3288 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3289 _cflags_speed='-O2'
3290 _cflags_size='-Os'
3291 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3292 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3293 _type=armasm
3294 _ident=$($_cc | head -n1)
3295 # 4509: "This form of conditional instruction is deprecated"
3296 _flags="-nologo -ignore 4509"
3297 _flags_filter=armasm_flags
3298 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3299 _type=msvc
3300 _ident=$($_cc 2>&1 | head -n1)
3301 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3302 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3303 _cflags_speed="-O2"
3304 _cflags_size="-O1"
3305 _cflags_noopt="-O1"
3306 if $_cc -nologo- 2>&1 | grep -q Linker; then
3307 _ld_o='-out:$@'
3308 else
3309 _ld_o='-Fe$@'
3310 fi
3311 _cc_o='-Fo$@'
3312 _cc_e='-P -Fi$@'
3313 _flags_filter=msvc_flags
3314 _ld_lib='lib%.a'
3315 _ld_path='-libpath:'
3316 _flags='-nologo'
3317 elif $_cc 2>&1 | grep -q Intel; then
3318 _type=icl
3319 _ident=$($_cc 2>&1 | head -n1)
3320 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3321 # Not only is O3 broken on 13.x+ but it is slower on all previous
3322 # versions (tested) as well.
3323 _cflags_speed="-O2"
3324 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3325 if $_cc 2>&1 | grep -q Linker; then
3326 _ld_o='-out:$@'
3327 else
3328 _ld_o='-Fe$@'
3329 fi
3330 _cc_o='-Fo$@'
3331 _cc_e='-P'
3332 _flags_filter=icl_flags
3333 _ld_lib='lib%.a'
3334 _ld_path='-libpath:'
3335 # -Qdiag-error to make icl error when seeing certain unknown arguments
3336 _flags='-nologo -Qdiag-error:4044,10157'
3337 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3338 # with MSVC which enables it by default.
3339 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3340 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3341 # lld can emulate multiple different linkers; in ms link.exe mode,
3342 # the -? parameter gives the help output which contains an identifyable
3343 # string, while it gives an error in other modes.
3344 _type=lld-link
3345 # The link.exe mode doesn't have a switch for getting the version,
3346 # but we can force it back to gnu mode and get the version from there.
3347 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3348 _ld_o='-out:$@'
3349 _flags_filter=msvc_flags
3350 _ld_lib='lib%.a'
3351 _ld_path='-libpath:'
3352 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3353 _type=cparser
3354 _ident=$($_cc --version | head -n1)
3355 _depflags='-MMD'
3356 _cflags_speed='-O4'
3357 _cflags_size='-O2'
3358 _flags_filter=cparser_flags
3359 fi
3360
3361 eval ${pfx}_type=\$_type
3362 eval ${pfx}_ident=\$_ident
3363 }
3364
3365 set_ccvars(){
3366 eval ${1}_C=\${_cc_c-\${${1}_C}}
3367 eval ${1}_E=\${_cc_e-\${${1}_E}}
3368 eval ${1}_O=\${_cc_o-\${${1}_O}}
3369
3370 if [ -n "$_depflags" ]; then
3371 eval ${1}_DEPFLAGS=\$_depflags
3372 else
3373 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3374 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3375 eval DEP${1}FLAGS=\$_flags
3376 fi
3377 }
3378
3379 probe_cc cc "$cc"
3380 cflags_filter=$_flags_filter
3381 cflags_speed=$_cflags_speed
3382 cflags_size=$_cflags_size
3383 cflags_noopt=$_cflags_noopt
3384 add_cflags $_flags $_cflags
3385 cc_ldflags=$_ldflags
3386 set_ccvars CC
3387
3388 probe_cc hostcc "$host_cc"
3389 host_cflags_filter=$_flags_filter
3390 host_cflags_speed=$_cflags_speed
3391 add_host_cflags $_flags $_cflags
3392 set_ccvars HOSTCC
3393
3394 test -n "$cc_type" && enable $cc_type ||
3395 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3396
3397 : ${as_default:=$cc}
3398 : ${objcc_default:=$cc}
3399 : ${dep_cc_default:=$cc}
3400 : ${ld_default:=$cc}
3401 : ${host_ld_default:=$host_cc}
3402 set_default ar as objcc dep_cc ld host_ld
3403
3404 probe_cc as "$as"
3405 asflags_filter=$_flags_filter
3406 add_asflags $_flags $_cflags
3407 set_ccvars AS
3408
3409 probe_cc objcc "$objcc"
3410 objcflags_filter=$_flags_filter
3411 add_objcflags $_flags $_cflags
3412 set_ccvars OBJC
3413
3414 probe_cc ld "$ld"
3415 ldflags_filter=$_flags_filter
3416 add_ldflags $_flags $_ldflags
3417 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3418 LD_O=${_ld_o-$LD_O}
3419 LD_LIB=${_ld_lib-$LD_LIB}
3420 LD_PATH=${_ld_path-$LD_PATH}
3421
3422 probe_cc hostld "$host_ld"
3423 host_ldflags_filter=$_flags_filter
3424 add_host_ldflags $_flags $_ldflags
3425 HOSTLD_O=${_ld_o-$HOSTLD_O}
3426
3427 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3428 probe_cc depcc "$dep_cc"
3429 CCDEP=${_DEPCMD:-$DEPCMD}
3430 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3431 DEPCCFLAGS=$_flags
3432 fi
3433
3434 if $ar 2>&1 | grep -q Microsoft; then
3435 arflags="-nologo"
3436 ar_o='-out:$@'
3437 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3438 arflags='-Xany -r -c'
3439 ar_o='$@'
3440 else
3441 arflags="rc"
3442 ar_o='$@'
3443 fi
3444
3445 add_cflags $extra_cflags
3446 add_objcflags $extra_objcflags
3447 add_asflags $extra_cflags
3448
3449 if test -n "$sysroot"; then
3450 case "$cc_type" in
3451 gcc|llvm_gcc|clang)
3452 add_cppflags --sysroot="$sysroot"
3453 add_ldflags --sysroot="$sysroot"
3454 ;;
3455 esac
3456 fi
3457
3458 if test "$cpu" = host; then
3459 enabled cross_compile &&
3460 die "--cpu=host makes no sense when cross-compiling."
3461
3462 case "$cc_type" in
3463 gcc|llvm_gcc)
3464 check_native(){
3465 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3466 sed -n "/cc1.*$1=/{
3467 s/.*$1=\\([^ ]*\\).*/\\1/
3468 p
3469 q
3470 }" $TMPE
3471 }
3472 cpu=$(check_native -march || check_native -mcpu)
3473 ;;
3474 esac
3475
3476 test "${cpu:-host}" = host &&
3477 die "--cpu=host not supported with compiler $cc"
3478 fi
3479
3480 # Deal with common $arch aliases
3481 case "$arch" in
3482 aarch64|arm64)
3483 arch="aarch64"
3484 ;;
3485 arm*)
3486 arch="arm"
3487 ;;
3488 mips*|IP*)
3489 case "$arch" in
3490 *el)
3491 add_cppflags -EL
3492 add_ldflags -EL
3493 ;;
3494 *eb)
3495 add_cppflags -EB
3496 add_ldflags -EB
3497 ;;
3498 esac
3499 arch="mips"
3500 ;;
3501 parisc*|hppa*)
3502 arch="parisc"
3503 ;;
3504 "Power Macintosh"|ppc*|powerpc*)
3505 arch="ppc"
3506 ;;
3507 s390|s390x)
3508 arch="s390"
3509 ;;
3510 sh4|sh)
3511 arch="sh4"
3512 ;;
3513 sun4u|sparc*)
3514 arch="sparc"
3515 ;;
3516 tilegx|tile-gx)
3517 arch="tilegx"
3518 ;;
3519 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3520 arch="x86"
3521 ;;
3522 esac
3523
3524 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3525 enable $arch
3526
3527 # Add processor-specific flags
3528 if enabled aarch64; then
3529
3530 case $cpu in
3531 armv*)
3532 cpuflags="-march=$cpu"
3533 ;;
3534 *)
3535 cpuflags="-mcpu=$cpu"
3536 ;;
3537 esac
3538
3539 elif enabled alpha; then
3540
3541 cpuflags="-mcpu=$cpu"
3542
3543 elif enabled arm; then
3544
3545 check_arm_arch() {
3546 check_cpp_condition stddef.h \
3547 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3548 $cpuflags
3549 }
3550
3551 probe_arm_arch() {
3552 if check_arm_arch 4; then echo armv4
3553 elif check_arm_arch 4T; then echo armv4t
3554 elif check_arm_arch 5; then echo armv5
3555 elif check_arm_arch 5E; then echo armv5e
3556 elif check_arm_arch 5T; then echo armv5t
3557 elif check_arm_arch 5TE; then echo armv5te
3558 elif check_arm_arch 5TEJ; then echo armv5te
3559 elif check_arm_arch 6; then echo armv6
3560 elif check_arm_arch 6J; then echo armv6j
3561 elif check_arm_arch 6K; then echo armv6k
3562 elif check_arm_arch 6Z; then echo armv6z
3563 elif check_arm_arch 6ZK; then echo armv6zk
3564 elif check_arm_arch 6T2; then echo armv6t2
3565 elif check_arm_arch 7; then echo armv7
3566 elif check_arm_arch 7A 7_A; then echo armv7-a
3567 elif check_arm_arch 7S; then echo armv7-a
3568 elif check_arm_arch 7R 7_R; then echo armv7-r
3569 elif check_arm_arch 7M 7_M; then echo armv7-m
3570 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3571 elif check_arm_arch 8A 8_A; then echo armv8-a
3572 fi
3573 }
3574
3575 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3576
3577 case $cpu in
3578 armv*)
3579 cpuflags="-march=$cpu"
3580 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3581 ;;
3582 *)
3583 cpuflags="-mcpu=$cpu"
3584 case $cpu in
3585 cortex-a*) subarch=armv7a ;;
3586 cortex-r*) subarch=armv7r ;;
3587 cortex-m*) enable thumb; subarch=armv7m ;;
3588 arm11*) subarch=armv6 ;;
3589 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3590 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3591 *) subarch=$(probe_arm_arch) ;;
3592 esac
3593 ;;
3594 esac
3595
3596 case "$subarch" in
3597 armv5t*) enable fast_clz ;;
3598 armv[6-8]*) enable fast_clz fast_unaligned ;;
3599 esac
3600
3601 elif enabled avr32; then
3602
3603 case $cpu in
3604 ap7[02]0[0-2])
3605 subarch="avr32_ap"
3606 cpuflags="-mpart=$cpu"
3607 ;;
3608 ap)
3609 subarch="avr32_ap"
3610 cpuflags="-march=$cpu"
3611 ;;
3612 uc3[ab]*)
3613 subarch="avr32_uc"
3614 cpuflags="-mcpu=$cpu"
3615 ;;
3616 uc)
3617 subarch="avr32_uc"
3618 cpuflags="-march=$cpu"
3619 ;;
3620 esac
3621
3622 elif enabled bfin; then
3623
3624 cpuflags="-mcpu=$cpu"
3625
3626 elif enabled mips; then
3627
3628 cpuflags="-march=$cpu"
3629
3630 elif enabled ppc; then
3631
3632 disable ldbrx
3633
3634 case $(tolower $cpu) in
3635 601|ppc601|powerpc601)
3636 cpuflags="-mcpu=601"
3637 disable altivec
3638 ;;
3639 603*|ppc603*|powerpc603*)
3640 cpuflags="-mcpu=603"
3641 disable altivec
3642 ;;
3643 604*|ppc604*|powerpc604*)
3644 cpuflags="-mcpu=604"
3645 disable altivec
3646 ;;
3647 g3|75*|ppc75*|powerpc75*)
3648 cpuflags="-mcpu=750"
3649 disable altivec
3650 ;;
3651 g4|745*|ppc745*|powerpc745*)
3652 cpuflags="-mcpu=7450"
3653 disable vsx
3654 ;;
3655 74*|ppc74*|powerpc74*)
3656 cpuflags="-mcpu=7400"
3657 disable vsx
3658 ;;
3659 g5|970|ppc970|powerpc970)
3660 cpuflags="-mcpu=970"
3661 disable vsx
3662 ;;
3663 power[3-6]*)
3664 cpuflags="-mcpu=$cpu"
3665 disable vsx
3666 ;;
3667 power[7-8]*)
3668 cpuflags="-mcpu=$cpu"
3669 enable ldbrx
3670 ;;
3671 cell)
3672 cpuflags="-mcpu=cell"
3673 enable ldbrx
3674 disable vsx
3675 ;;
3676 e500mc)
3677 cpuflags="-mcpu=e500mc"
3678 disable altivec
3679 ;;
3680 e500v2)
3681 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3682 disable altivec
3683 disable dcbzl
3684 ;;
3685 e500)
3686 cpuflags="-mcpu=8540 -mhard-float"
3687 disable altivec
3688 disable dcbzl
3689 ;;
3690 esac
3691
3692 elif enabled sparc; then
3693
3694 case $cpu in
3695 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3696 cpuflags="-mcpu=$cpu"
3697 ;;
3698 ultrasparc*|niagara[234])
3699 cpuflags="-mcpu=$cpu"
3700 ;;
3701 esac
3702
3703 elif enabled x86; then
3704
3705 case $cpu in
3706 i[345]86|pentium)
3707 cpuflags="-march=$cpu"
3708 disable i686
3709 disable mmx
3710 ;;
3711 # targets that do NOT support nopl and conditional mov (cmov)
3712 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3713 cpuflags="-march=$cpu"
3714 disable i686
3715 ;;
3716 # targets that do support nopl and conditional mov (cmov)
3717 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3718 cpuflags="-march=$cpu"
3719 enable i686
3720 enable fast_cmov
3721 ;;
3722 # targets that do support conditional mov but on which it's slow
3723 pentium4|pentium4m|prescott|nocona)
3724 cpuflags="-march=$cpu"
3725 enable i686
3726 disable fast_cmov
3727 ;;
3728 esac
3729
3730 fi
3731
3732 if [ "$cpu" != generic ]; then
3733 add_cflags $cpuflags
3734 add_asflags $cpuflags
3735 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3736 fi
3737
3738 # compiler sanity check
3739 check_exec <<EOF
3740 int main(void){ return 0; }
3741 EOF
3742 if test "$?" != 0; then
3743 echo "$cc is unable to create an executable file."
3744 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3745 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3746 echo "Only do this if you know what cross compiling means."
3747 fi
3748 die "C compiler test failed."
3749 fi
3750
3751 add_cppflags -D_ISOC99_SOURCE
3752
3753 # some compilers silently accept -std=c11, so we also need to check that the
3754 # version macro is defined properly
3755 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3756 add_cflags -std=c11 ||
3757 check_cflags -std=c99
3758
3759 check_cppflags -D_FILE_OFFSET_BITS=64
3760 check_cppflags -D_LARGEFILE_SOURCE
3761
3762 add_host_cppflags -D_ISOC99_SOURCE
3763 check_host_cflags -std=c99
3764 check_host_cflags -Wall
3765 check_host_cflags $host_cflags_speed
3766
3767 check_64bit(){
3768 arch32=$1
3769 arch64=$2
3770 expr=$3
3771 check_code cc "" "int test[2*($expr) - 1]" &&
3772 subarch=$arch64 || subarch=$arch32
3773 }
3774
3775 case "$arch" in
3776 aarch64|alpha|ia64)
3777 spic=$shared
3778 ;;
3779 mips)
3780 check_64bit mips mips64 '_MIPS_SIM > 1'
3781 spic=$shared
3782 ;;
3783 parisc)
3784 check_64bit parisc parisc64 'sizeof(void *) > 4'
3785 spic=$shared
3786 ;;
3787 ppc)
3788 check_64bit ppc ppc64 'sizeof(void *) > 4'
3789 spic=$shared
3790 ;;
3791 s390)
3792 check_64bit s390 s390x 'sizeof(void *) > 4'
3793 spic=$shared
3794 ;;
3795 sparc)
3796 check_64bit sparc sparc64 'sizeof(void *) > 4'
3797 spic=$shared
3798 ;;
3799 x86)
3800 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3801 if test "$subarch" = "x86_64"; then
3802 spic=$shared
3803 fi
3804 ;;
3805 esac
3806
3807 enable $subarch
3808 enabled spic && enable_weak pic
3809
3810 enabled x86_64 && objformat=elf64 || objformat="elf32"
3811
3812 # OS specific
3813 case $target_os in
3814 aix)
3815 SHFLAGS=-shared
3816 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3817 enabled shared && add_ldflags -Wl,-brtl
3818 ;;
3819 android)
3820 disable symver
3821 enable section_data_rel_ro
3822 SLIB_INSTALL_NAME='$(SLIBNAME)'
3823 SLIB_INSTALL_LINKS=
3824 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3825 ;;
3826 haiku)
3827 prefix_default="/boot/common"
3828 network_extralibs="-lnetwork"
3829 host_extralibs=
3830 ;;
3831 sunos)
3832 SHFLAGS='-shared -Wl,-h,$$(@F)'
3833 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3834 network_extralibs="-lsocket -lnsl"
3835 # When using suncc to build, the Solaris linker will mark
3836 # an executable with each instruction set encountered by
3837 # the Solaris assembler. As our libraries contain their own
3838 # guards for processor-specific code, instead suppress
3839 # generation of the HWCAPS ELF section on Solaris x86 only.
3840 enabled_all suncc x86 &&
3841 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3842 add_ldflags -Wl,-M,mapfile
3843 nm_default='nm -P -g'
3844 version_script='-M'
3845 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3846 ;;
3847 netbsd)
3848 disable symver
3849 oss_indev_extralibs="-lossaudio"
3850 ;;
3851 openbsd|bitrig)
3852 disable symver
3853 SHFLAGS='-shared'
3854 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3855 SLIB_INSTALL_LINKS=
3856 oss_indev_extralibs="-lossaudio"
3857 ;;
3858 dragonfly)
3859 disable symver
3860 ;;
3861 freebsd)
3862 ;;
3863 bsd/os)
3864 add_extralibs -lpoll -lgnugetopt
3865 ;;
3866 darwin)
3867 enabled ppc && add_asflags -force_cpusubtype_ALL
3868 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3869 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3870 add_ldflags -Wl,-dynamic,-search_paths_first
3871 check_cflags -Werror=partial-availability
3872 SLIBSUF=".dylib"
3873 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3874 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3875 enabled x86_64 && objformat="macho64" || objformat="macho32"
3876 enabled_any pic shared ||
3877 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3878 check_header dispatch/dispatch.h &&
3879 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3880 if test -n "$sysroot"; then
3881 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3882 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3883 fi
3884 ;;
3885 msys*)
3886 die "Native MSYS builds are discouraged, please use the MINGW environment."
3887 ;;
3888 mingw32*|mingw64*)
3889 target_os=mingw32
3890 if enabled shared; then
3891 # Cannot build both shared and static libs when using dllexport.
3892 disable static
3893 fi
3894 check_ldflags -Wl,--nxcompat
3895 check_ldflags -Wl,--dynamicbase
3896 shlibdir_default="$bindir_default"
3897 SLIBPREF=""
3898 SLIBSUF=".dll"
3899 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3900 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3901 SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3902 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3903 SLIB_INSTALL_LINKS=
3904 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3905 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3906 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3907 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3908 enabled x86_64 && objformat="win64" || objformat="win32"
3909 ranlib=:
3910 enable dos_paths
3911 ;;
3912 win32|win64)
3913 disable symver
3914 if enabled shared; then
3915 # Link to the import library instead of the normal static library
3916 # for shared libs.
3917 LD_LIB='%.lib'
3918 # Cannot build both shared and static libs with MSVC or icl.
3919 disable static
3920 fi
3921 shlibdir_default="$bindir_default"
3922 SLIBPREF=""
3923 SLIBSUF=".dll"
3924 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3925 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3926 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3927 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3928 SLIB_INSTALL_LINKS=
3929 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3930 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3931 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3932 enabled x86_64 && objformat="win64" || objformat="win32"
3933 ranlib=:
3934 enable dos_paths
3935 ;;
3936 cygwin*)
3937 target_os=cygwin
3938 shlibdir_default="$bindir_default"
3939 SLIBPREF="cyg"
3940 SLIBSUF=".dll"
3941 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3942 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3943 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3944 SLIB_INSTALL_LINKS=
3945 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3946 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3947 enabled x86_64 && objformat="win64" || objformat="win32"
3948 enable dos_paths
3949 ;;
3950 *-dos|freedos|opendos)
3951 network_extralibs="-lsocket"
3952 objformat="coff"
3953 enable dos_paths
3954 add_cppflags -U__STRICT_ANSI__
3955 ;;
3956 linux)
3957 enable section_data_rel_ro
3958 ;;
3959 irix*)
3960 target_os=irix
3961 ranlib="echo ignoring ranlib"
3962 ;;
3963 os/2*)
3964 ln_s="cp -f"
3965 objformat="aout"
3966 add_cppflags -D_GNU_SOURCE
3967 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3968 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3969 LIBSUF="_s.a"
3970 SLIBPREF=""
3971 SLIBSUF=".dll"
3972 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3973 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3974 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3975 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3976 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3977 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3978 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3979 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3980 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3981 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3982 enable dos_paths
3983 ;;
3984 gnu/kfreebsd)
3985 add_cppflags -D_BSD_SOURCE
3986 ;;
3987 gnu)
3988 ;;
3989 qnx)
3990 add_cppflags -D_QNX_SOURCE
3991 network_extralibs="-lsocket"
3992 ;;
3993 symbian)
3994 SLIBSUF=".dll"
3995 enable dos_paths
3996 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3997 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3998 add_ldflags -Wl,--target1-abs,--no-undefined \
3999 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4000 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4001 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4002 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4003 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4004 ;;
4005 minix)
4006 ;;
4007 none)
4008 ;;
4009 *)
4010 die "Unknown OS '$target_os'."
4011 ;;
4012 esac
4013
4014 # determine libc flavour
4015
4016 probe_libc(){
4017 pfx=$1
4018 pfx_no_=${pfx%_}
4019 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4020 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4021 eval ${pfx}libc_type=uclibc
4022 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4023 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4024 eval ${pfx}libc_type=glibc
4025 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4026 # MinGW headers can be installed on Cygwin, so check for newlib first.
4027 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4028 eval ${pfx}libc_type=newlib
4029 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4030 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4031 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4032 eval ${pfx}libc_type=mingw64
4033 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4034 eval test \$${pfx_no_}cc_type = "gcc" &&
4035 add_${pfx}cppflags -D__printf__=__gnu_printf__
4036 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4037 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4038 eval ${pfx}libc_type=mingw32
4039 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4040 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4041 die "ERROR: MinGW32 runtime version must be >= 3.15."
4042 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4043 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4044 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4045 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4046 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4047 eval test \$${pfx_no_}cc_type = "gcc" &&
4048 add_${pfx}cppflags -D__printf__=__gnu_printf__
4049 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4050 eval ${pfx}libc_type=msvcrt
4051 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4052 if [ "$pfx" = host_ ]; then
4053 add_host_cppflags -Dsnprintf=_snprintf
4054 else
4055 add_compat strtod.o strtod=avpriv_strtod
4056 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4057 _snprintf=avpriv_snprintf \
4058 vsnprintf=avpriv_vsnprintf
4059 fi
4060 fi
4061 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4062 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4063 # 0x601 by default unless something else is set by the user.
4064 # This can easily lead to us detecting functions only present
4065 # in such new versions and producing binaries requiring windows 7.0.
4066 # Therefore explicitly set the default to XP unless the user has
4067 # set something else on the command line.
4068 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4069 # family. For these cases, configure is free to use any functions
4070 # found in the SDK headers by default. (Alternatively, we could force
4071 # _WIN32_WINNT to 0x0602 in that case.)
4072 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4073 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4074 #ifdef WINAPI_FAMILY
4075 #include <winapifamily.h>
4076 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4077 #error not desktop
4078 #endif
4079 #endif
4080 EOF
4081 if [ "$pfx" = "" ]; then
4082 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4083 fi
4084 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4085 eval ${pfx}libc_type=klibc
4086 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4087 eval ${pfx}libc_type=bionic
4088 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4089 eval ${pfx}libc_type=solaris
4090 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4091 else
4092 eval ${pfx}libc_type=default
4093 add_${pfx}cppflags -D_DEFAULT_SOURCE
4094 fi
4095 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4096 }
4097
4098 probe_libc
4099 probe_libc host_
4100
4101 # hacks for compiler/libc/os combinations
4102
4103 case $libc_type in
4104 bionic)
4105 add_compat strtod.o strtod=avpriv_strtod
4106 ;;
4107 esac
4108
4109 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4110 add_cppflags '-I\$(SRC_PATH)/compat/float'
4111
4112 esc(){
4113 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4114 }
4115
4116 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4117
4118 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4119
4120 set_default $PATHS_LIST
4121 set_default nm
4122
4123 disabled optimizations || check_cflags -fomit-frame-pointer
4124
4125 enable_weak_pic() {
4126 disabled pic && return
4127 enable pic
4128 add_cppflags -DPIC
4129 case "$target_os" in
4130 mingw*|cygwin*|win*)
4131 ;;
4132 *)
4133 add_cflags -fPIC
4134 add_asflags -fPIC
4135 ;;
4136 esac
4137 }
4138
4139 enabled pic && enable_weak_pic
4140
4141 check_cc <<EOF || die "Symbol mangling check failed."
4142 int ff_extern;
4143 EOF
4144 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4145 extern_prefix=${sym%%ff_extern*}
4146
4147 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4148
4149 _restrict=
4150 for restrict_keyword in restrict __restrict__ __restrict; do
4151 check_cc <<EOF && _restrict=$restrict_keyword && break
4152 void foo(char * $restrict_keyword p);
4153 EOF
4154 done
4155
4156 check_cc <<EOF && enable pragma_deprecated
4157 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4158 EOF
4159
4160 check_cc <<EOF || die "endian test failed"
4161 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4162 EOF
4163 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4164
4165 check_gas() {
4166 log "check_gas using '$as' as AS"
4167 # :vararg is used on aarch64, arm and ppc altivec
4168 check_as <<EOF || return 1
4169 .macro m n, y:vararg=0
4170 \n: .int \y
4171 .endm
4172 m x
4173 EOF
4174 # .altmacro is only used in arm asm
4175 ! enabled arm || check_as <<EOF || return 1
4176 .altmacro
4177 EOF
4178 enable gnu_as
4179 return 0
4180 }
4181
4182 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4183 nogas=:
4184 enabled_any arm aarch64 && nogas=die
4185 enabled_all ppc altivec && nogas=warn
4186 as_noop=-v
4187
4188 case $as_type in
4189 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4190 gcc) gaspp_as_type=gas ;;
4191 *) gaspp_as_type=$as_type ;;
4192 esac
4193
4194 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4195
4196 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4197 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4198
4199 if ! check_gas ; then
4200 as=${gas:=$as}
4201 check_gas || \
4202 $nogas "GNU assembler not found, install/update gas-preprocessor"
4203 fi
4204
4205 check_as <<EOF && enable as_func
4206 .func test
4207 .endfunc
4208 EOF
4209 fi
4210
4211 check_inline_asm inline_asm_labels '"1:\n"'
4212
4213 if enabled aarch64; then
4214 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4215 # internal assembler in clang 3.3 does not support this instruction
4216 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4217 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4218
4219 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4220
4221 elif enabled alpha; then
4222
4223 check_cflags -mieee
4224
4225 elif enabled arm; then
4226
4227 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4228 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4229 enabled thumb && check_cflags -mthumb || check_cflags -marm
4230
4231 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4232 enable vfp_args
4233 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4234 enable vfp_args
4235 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4236 case "${cross_prefix:-$cc}" in
4237 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4238 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4239 __asm__ (".eabi_attribute 28, 1");
4240 int main(void) { return 0; }
4241 EOF
4242 esac
4243 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4244 fi
4245
4246 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4247 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4248 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4249 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4250 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4251 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4252
4253 [ $target_os = linux ] || [ $target_os = android ] ||
4254 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4255 $ARCH_EXT_LIST_ARM
4256
4257 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4258
4259 check_as <<EOF && enable as_arch_directive
4260 .arch armv7-a
4261 EOF
4262 check_as <<EOF && enable as_fpu_directive
4263 .fpu neon
4264 EOF
4265
4266 # llvm's integrated assembler supports .object_arch from llvm 3.5
4267 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4268 check_as <<EOF && enable as_object_arch
4269 .object_arch armv4
4270 EOF
4271
4272 # MS armasm fails to assemble our PIC constructs
4273 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4274
4275 elif enabled mips; then
4276
4277 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4278
4279 # make sure that only an instruction set is enabled
4280 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4281
4282 if enabled mips64; then
4283 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4284 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4285 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4286 else
4287 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4288 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4289 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4290 fi
4291
4292 elif enabled parisc; then
4293
4294 if enabled gcc; then
4295 case $($cc -dumpversion) in
4296 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4297 esac
4298 fi
4299
4300 elif enabled ppc; then
4301
4302 enable local_aligned_8 local_aligned_16 local_aligned_32
4303
4304 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4305 check_inline_asm ibm_asm '"add 0, 0, 0"'
4306 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4307 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4308
4309 if enabled altivec; then
4310 check_cflags -maltivec -mabi=altivec
4311
4312 # check if our compiler supports Motorola AltiVec C API
4313 check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4314 vector signed int v2 = (vector signed int) { 1 };
4315 v1 = vec_add(v1, v2);" ||
4316 disable altivec
4317
4318 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4319 fi
4320
4321 if enabled vsx; then
4322 check_cflags -mvsx &&
4323 check_code cc altivec.h "int v[4] = { 0 };
4324 vector signed int v1 = vec_vsx_ld(0, v);" ||
4325 disable vsx
4326 fi
4327
4328 if enabled power8; then
4329 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4330 fi
4331
4332 elif enabled x86; then
4333
4334 check_builtin rdtsc intrin.h "__rdtsc()"
4335 check_builtin mm_empty mmintrin.h "_mm_empty()"
4336
4337 enable local_aligned_8 local_aligned_16 local_aligned_32
4338
4339 # check whether EBP is available on x86
4340 # As 'i' is stored on the stack, this program will crash
4341 # if the base pointer is used to access it because the
4342 # base pointer is cleared in the inline assembly code.
4343 check_exec_crash <<EOF && enable ebp_available
4344 volatile int i=0;
4345 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4346 return i;
4347 EOF
4348
4349 # check whether EBX is available on x86
4350 check_inline_asm ebx_available '""::"b"(0)' &&
4351 check_inline_asm ebx_available '"":::"%ebx"'
4352
4353 # check whether xmm clobbers are supported
4354 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4355
4356 # check whether binutils is new enough to compile SSSE3/MMXEXT
4357 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4358 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4359
4360 probe_x86asm(){
4361 x86asmexe_probe=$1
4362 if check_cmd $x86asmexe_probe -v; then
4363 x86asmexe=$x86asmexe_probe
4364 x86asm_type=nasm
4365 x86asm_debug="-g -F dwarf"
4366 X86ASMDEP=
4367 X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4368 elif check_cmd $x86asmexe_probe --version; then
4369 x86asmexe=$x86asmexe_probe
4370 x86asm_type=yasm
4371 x86asm_debug="-g dwarf2"
4372 X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4373 X86ASM_DEPFLAGS=
4374 fi
4375 check_x86asm "movbe ecx, [5]" && enable x86asm
4376 }
4377
4378 if ! disabled_any asm mmx x86asm; then
4379 disable x86asm
4380 for program in $x86asmexe nasm yasm; do
4381 probe_x86asm $program && break
4382 done
4383 disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4384 X86ASMFLAGS="-f $objformat"
4385 enabled pic && append X86ASMFLAGS "-DPIC"
4386 test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
4387 case "$objformat" in
4388 elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4389 esac
4390
4391 check_x86asm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4392 check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4393 check_x86asm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4394 check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external