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