Add support for H.264 and HEVC hardware encoding for AMD GPUs based on AMF SDK
[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-amf AMF video encoding code [auto]
235 --enable-cuda Nvidia CUDA (dynamically linked)
236 --enable-cuvid Nvidia CUVID video decode acceleration
237 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
238 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
239 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
240 --enable-libnpp Nvidia CUDA processing
241 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
242 --enable-nvenc Nvidia video encoding
243 --enable-omx OpenMAX IL
244 --enable-omx-rpi OpenMAX IL for Raspberry Pi
245 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
246 --enable-vda Apple Video Decode Acceleration [auto]
247 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
248
249 Toolchain options:
250 --arch=ARCH select architecture [$arch]
251 --cpu=CPU select the minimum required CPU (affects
252 instruction selection, may crash on older CPUs)
253 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
254 --enable-cross-compile assume a cross-compiler is used
255 --sysroot=PATH root of cross-build tree
256 --sysinclude=PATH location of cross-build system headers
257 --target-os=OS compiler targets OS [$target_os]
258 --target-exec=CMD command to run executables on target
259 --target-path=DIR path to view of build directory on target
260 --target-samples=DIR path to samples directory on target
261 --toolchain=NAME set tool defaults according to NAME
262 --nm=NM use nm tool
263 --ar=AR use archive tool AR [$ar_default]
264 --as=AS use assembler AS [$as_default]
265 --cc=CC use C compiler CC [$cc_default]
266 --objcc=OCC use ObjC compiler OCC [$cc_default]
267 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
268 --ld=LD use linker LD
269 --x86asmexe=X86ASM use x86 assembler X86ASM
270 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
271 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
272 --host-cc=HOSTCC use host C compiler HOSTCC
273 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
274 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
275 --host-ld=HOSTLD use host linker HOSTLD
276 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
277 --host-libs=HLIBS use libs HLIBS when linking for host
278 --host-os=OS compiler host OS [$target_os]
279 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
280 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
281 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
282 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
283 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
284 --extra-libs=ELIBS add ELIBS [$ELIBS]
285 --extra-version=STRING version string suffix []
286 --optflags=OPTFLAGS override optimization-related compiler flags
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
291
292 Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
301
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-x86asm disable use of standalone x86 assembly
329
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --disable-valgrind-backtrace do not print a backtrace under Valgrind
342 (only applies to --disable-optimizations builds)
343 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
344 in the name) of tests whose result is ignored
345
346 NOTE: Object files are built at the place where configure is launched.
347 EOF
348 exit 0
349 }
350
351 log(){
352 echo "$@" >> $logfile
353 }
354
355 log_file(){
356 log BEGIN $1
357 i=1
358 while read line; do
359 printf '%5s %s\n' "${i}" "${line}"
360 i=$(($i+1))
361 done < $1 >> $logfile
362 log END $1
363 }
364
365 echolog(){
366 log "$@"
367 echo "$@"
368 }
369
370 warn(){
371 log "WARNING: $*"
372 WARNINGS="${WARNINGS}WARNING: $*\n"
373 }
374
375 die(){
376 echolog "$@"
377 cat <<EOF
378
379 If you think configure made a mistake, make sure you are using the latest
380 version from Git. If the latest version fails, report the problem to the
381 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
382 EOF
383 if disabled logging; then
384 cat <<EOF
385 Rerun configure with logging enabled (do not use --disable-logging), and
386 include the log this produces with your report.
387 EOF
388 else
389 cat <<EOF
390 Include the log file "$logfile" produced by configure as this will help
391 solving the problem.
392 EOF
393 fi
394 exit 1
395 }
396
397 # Avoid locale weirdness, besides we really just want to translate ASCII.
398 toupper(){
399 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
400 }
401
402 tolower(){
403 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
404 }
405
406 c_escape(){
407 echo "$*" | sed 's/["\\]/\\\0/g'
408 }
409
410 sh_quote(){
411 v=$(echo "$1" | sed "s/'/'\\\\''/g")
412 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
413 echo "$v"
414 }
415
416 cleanws(){
417 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
418 }
419
420 filter(){
421 pat=$1
422 shift
423 for v; do
424 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
425 done
426 }
427
428 filter_out(){
429 pat=$1
430 shift
431 for v; do
432 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
433 done
434 }
435
436 map(){
437 m=$1
438 shift
439 for v; do eval $m; done
440 }
441
442 add_suffix(){
443 suffix=$1
444 shift
445 for v; do echo ${v}${suffix}; done
446 }
447
448 set_all(){
449 value=$1
450 shift
451 for var in $*; do
452 eval $var=$value
453 done
454 }
455
456 set_weak(){
457 value=$1
458 shift
459 for var; do
460 eval : \${$var:=$value}
461 done
462 }
463
464 sanitize_var_name(){
465 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
466 }
467
468 set_sanitized(){
469 var=$1
470 shift
471 eval $(sanitize_var_name "$var")='$*'
472 }
473
474 get_sanitized(){
475 eval echo \$$(sanitize_var_name "$1")
476 }
477
478 pushvar(){
479 for pvar in $*; do
480 eval level=\${${pvar}_level:=0}
481 eval ${pvar}_${level}="\$$pvar"
482 eval ${pvar}_level=$(($level+1))
483 done
484 }
485
486 popvar(){
487 for pvar in $*; do
488 eval level=\${${pvar}_level:-0}
489 test $level = 0 && continue
490 eval level=$(($level-1))
491 eval $pvar="\${${pvar}_${level}}"
492 eval ${pvar}_level=$level
493 eval unset ${pvar}_${level}
494 done
495 }
496
497 enable(){
498 set_all yes $*
499 }
500
501 disable(){
502 set_all no $*
503 }
504
505 enable_weak(){
506 set_weak yes $*
507 }
508
509 disable_weak(){
510 set_weak no $*
511 }
512
513 enable_sanitized(){
514 for var; do
515 enable $(sanitize_var_name $var)
516 done
517 }
518
519 disable_sanitized(){
520 for var; do
521 disable $(sanitize_var_name $var)
522 done
523 }
524
525 do_enable_deep(){
526 for var; do
527 enabled $var && continue
528 eval sel="\$${var}_select"
529 eval sgs="\$${var}_suggest"
530 pushvar var sgs
531 enable_deep $sel
532 popvar sgs
533 enable_deep_weak $sgs
534 popvar var
535 done
536 }
537
538 enable_deep(){
539 do_enable_deep $*
540 enable $*
541 }
542
543 enable_deep_weak(){
544 for var; do
545 disabled $var && continue
546 pushvar var
547 do_enable_deep $var
548 popvar var
549 enable_weak $var
550 done
551 }
552
553 enabled(){
554 test "${1#!}" = "$1" && op="=" || op="!="
555 eval test "x\$${1#!}" $op "xyes"
556 }
557
558 disabled(){
559 test "${1#!}" = "$1" && op="=" || op="!="
560 eval test "x\$${1#!}" $op "xno"
561 }
562
563 enabled_all(){
564 for opt; do
565 enabled $opt || return 1
566 done
567 }
568
569 disabled_all(){
570 for opt; do
571 disabled $opt || return 1
572 done
573 }
574
575 enabled_any(){
576 for opt; do
577 enabled $opt && return 0
578 done
579 }
580
581 disabled_any(){
582 for opt; do
583 disabled $opt && return 0
584 done
585 return 1
586 }
587
588 set_default(){
589 for opt; do
590 eval : \${$opt:=\$${opt}_default}
591 done
592 }
593
594 is_in(){
595 value=$1
596 shift
597 for var in $*; do
598 [ $var = $value ] && return 0
599 done
600 return 1
601 }
602
603 check_deps(){
604 for cfg; do
605 enabled ${cfg}_checking && die "Circular dependency for $cfg."
606 disabled ${cfg}_checking && continue
607 enable ${cfg}_checking
608
609 eval dep_all="\$${cfg}_deps"
610 eval dep_any="\$${cfg}_deps_any"
611 eval dep_con="\$${cfg}_conflict"
612 eval dep_sel="\$${cfg}_select"
613 eval dep_sgs="\$${cfg}_suggest"
614 eval dep_ifa="\$${cfg}_if"
615 eval dep_ifn="\$${cfg}_if_any"
616
617 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
618 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
619 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
620
621 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
622 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
623 enabled_all $dep_all || disable $cfg
624 enabled_any $dep_any || disable $cfg
625 disabled_all $dep_con || disable $cfg
626 disabled_any $dep_sel && disable $cfg
627
628 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
629
630 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
631 # filter out library deps, these do not belong in extralibs
632 is_in $dep $LIBRARY_LIST && continue
633 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
634 done
635
636 disable ${cfg}_checking
637 done
638 }
639
640 print_config(){
641 pfx=$1
642 files=$2
643 shift 2
644 map 'eval echo "$v \${$v:-no}"' "$@" |
645 awk "BEGIN { split(\"$files\", files) }
646 {
647 c = \"$pfx\" toupper(\$1);
648 v = \$2;
649 sub(/yes/, 1, v);
650 sub(/no/, 0, v);
651 for (f in files) {
652 file = files[f];
653 if (file ~ /\\.h\$/) {
654 printf(\"#define %s %d\\n\", c, v) >>file;
655 } else if (file ~ /\\.asm\$/) {
656 printf(\"%%define %s %d\\n\", c, v) >>file;
657 } else if (file ~ /\\.mak\$/) {
658 n = -v ? \"\" : \"!\";
659 printf(\"%s%s=yes\\n\", n, c) >>file;
660 }
661 }
662 }"
663 }
664
665 print_enabled(){
666 suf=$1
667 shift
668 for v; do
669 enabled $v && printf "%s\n" ${v%$suf}
670 done
671 }
672
673 append(){
674 var=$1
675 shift
676 eval "$var=\"\$$var $*\""
677 }
678
679 prepend(){
680 var=$1
681 shift
682 eval "$var=\"$* \$$var\""
683 }
684
685 unique(){
686 var=$1
687 uniq_list=""
688 for tok in $(eval echo \$$var); do
689 uniq_list="$(filter_out $tok $uniq_list) $tok"
690 done
691 eval "$var=\"${uniq_list}\""
692 }
693
694 resolve(){
695 var=$1
696 tmpvar=
697 for entry in $(eval echo \$$var); do
698 tmpvar="$tmpvar $(eval echo \$${entry})"
699 done
700 eval "$var=\"${tmpvar}\""
701 }
702
703 add_cppflags(){
704 append CPPFLAGS "$@"
705 }
706
707 add_cflags(){
708 append CFLAGS $($cflags_filter "$@")
709 }
710
711 add_cflags_headers(){
712 append CFLAGS_HEADERS $($cflags_filter "$@")
713 }
714
715 add_asflags(){
716 append ASFLAGS $($asflags_filter "$@")
717 }
718
719 add_objcflags(){
720 append OBJCFLAGS $($objcflags_filter "$@")
721 }
722
723 add_ldflags(){
724 append LDFLAGS $($ldflags_filter "$@")
725 }
726
727 add_ldexeflags(){
728 append LDEXEFLAGS $($ldflags_filter "$@")
729 }
730
731 add_ldsoflags(){
732 append LDSOFLAGS $($ldflags_filter "$@")
733 }
734
735 add_stripflags(){
736 append STRIPFLAGS "$@"
737 }
738
739 add_extralibs(){
740 prepend extralibs $($ldflags_filter "$@")
741 }
742
743 add_host_cppflags(){
744 append host_cppflags "$@"
745 }
746
747 add_host_cflags(){
748 append host_cflags $($host_cflags_filter "$@")
749 }
750
751 add_host_ldflags(){
752 append host_ldflags $($host_ldflags_filter "$@")
753 }
754
755 add_compat(){
756 append compat_objs $1
757 shift
758 map 'add_cppflags -D$v' "$@"
759 }
760
761 check_cmd(){
762 log "$@"
763 "$@" >> $logfile 2>&1
764 }
765
766 cc_o(){
767 eval printf '%s\\n' $CC_O
768 }
769
770 cc_e(){
771 eval printf '%s\\n' $CC_E
772 }
773
774 check_cc(){
775 log check_cc "$@"
776 cat > $TMPC
777 log_file $TMPC
778 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
779 }
780
781 check_objcc(){
782 log check_objcc "$@"
783 cat > $TMPC
784 log_file $TMPC
785 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
786 }
787
788 check_cpp(){
789 log check_cpp "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
793 }
794
795 as_o(){
796 eval printf '%s\\n' $AS_O
797 }
798
799 check_as(){
800 log check_as "$@"
801 cat > $TMPS
802 log_file $TMPS
803 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
804 }
805
806 check_inline_asm(){
807 log check_inline_asm "$@"
808 name="$1"
809 code="$2"
810 shift 2
811 disable $name
812 check_cc "$@" <<EOF && enable $name
813 void foo(void){ __asm__ volatile($code); }
814 EOF
815 }
816
817 check_insn(){
818 log check_insn "$@"
819 check_inline_asm ${1}_inline "\"$2\""
820 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
821 }
822
823 check_x86asm(){
824 log check_x86asm "$@"
825 echo "$1" > $TMPS
826 log_file $TMPS
827 shift 1
828 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
829 }
830
831 ld_o(){
832 eval printf '%s\\n' $LD_O
833 }
834
835 check_ld(){
836 log check_ld "$@"
837 flags=$(filter_out '-l*' "$@")
838 libs=$(filter '-l*' "$@")
839 check_cc $($cflags_filter $flags) || return
840 flags=$($ldflags_filter $flags)
841 libs=$($ldflags_filter $libs)
842 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
843 }
844
845 print_include(){
846 hdr=$1
847 test "${hdr%.h}" = "${hdr}" &&
848 echo "#include $hdr" ||
849 echo "#include <$hdr>"
850 }
851
852 check_code(){
853 log check_code "$@"
854 check=$1
855 headers=$2
856 code=$3
857 shift 3
858 {
859 for hdr in $headers; do
860 print_include $hdr
861 done
862 echo "int main(void) { $code; return 0; }"
863 } | check_$check "$@"
864 }
865
866 check_cppflags(){
867 log check_cppflags "$@"
868 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
869 #include <stdlib.h>;
870 EOF
871 }
872
873 test_cflags(){
874 log test_cflags "$@"
875 set -- $($cflags_filter "$@")
876 check_cc "$@" <<EOF
877 int x;
878 EOF
879 }
880
881 check_cflags(){
882 log check_cflags "$@"
883 test_cflags "$@" && add_cflags "$@"
884 }
885
886 test_objcflags(){
887 log test_objcflags "$@"
888 set -- $($objcflags_filter "$@")
889 check_objcc "$@" <<EOF
890 int x;
891 EOF
892 }
893
894 check_objcflags(){
895 log check_objcflags "$@"
896 test_objcflags "$@" && add_objcflags "$@"
897 }
898
899 test_ldflags(){
900 log test_ldflags "$@"
901 set -- $($ldflags_filter "$@")
902 check_ld "$@" <<EOF
903 int main(void){ return 0; }
904 EOF
905 }
906
907 check_ldflags(){
908 log check_ldflags "$@"
909 test_ldflags "$@" && add_ldflags "$@"
910 }
911
912 test_stripflags(){
913 log test_stripflags "$@"
914 # call check_cc to get a fresh TMPO
915 check_cc <<EOF
916 int main(void) { return 0; }
917 EOF
918 check_cmd $strip $STRIPFLAGS "$@" $TMPO
919 }
920
921 check_stripflags(){
922 log check_stripflags "$@"
923 test_stripflags "$@" && add_stripflags "$@"
924 }
925
926 check_header(){
927 log check_header "$@"
928 headers=$1
929 shift
930 disable_sanitized $headers
931 {
932 for hdr in $headers; do
933 print_include $hdr
934 done
935 echo "int x;"
936 } | check_cpp "$@" && enable_sanitized $headers
937 }
938
939 check_func(){
940 log check_func "$@"
941 func=$1
942 shift
943 disable $func
944 check_ld "$@" <<EOF && enable $func
945 extern int $func();
946 int main(void){ $func(); }
947 EOF
948 }
949
950 check_mathfunc(){
951 log check_mathfunc "$@"
952 func=$1
953 narg=$2
954 shift 2
955 test $narg = 2 && args="f, g" || args="f"
956 disable $func
957 check_ld "$@" <<EOF && enable $func
958 #include <math.h>
959 float foo(float f, float g) { return $func($args); }
960 int main(void){ return 0; }
961 EOF
962 }
963
964 check_func_headers(){
965 log check_func_headers "$@"
966 headers=$1
967 funcs=$2
968 shift 2
969 {
970 for hdr in $headers; do
971 print_include $hdr
972 done
973 for func in $funcs; do
974 echo "long check_$func(void) { return (long) $func; }"
975 done
976 echo "int main(void) { return 0; }"
977 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
978 }
979
980 check_cpp_condition(){
981 log check_cpp_condition "$@"
982 header=$1
983 condition=$2
984 shift 2
985 check_cpp "$@" <<EOF
986 #include <$header>
987 #if !($condition)
988 #error "unsatisfied condition: $condition"
989 #endif
990 EOF
991 }
992
993 test_cflags_cpp(){
994 log test_cflags_cpp "$@"
995 flags=$1
996 condition=$2
997 shift 2
998 set -- $($cflags_filter "$flags")
999 check_cpp "$@" <<EOF
1000 #if !($condition)
1001 #error "unsatisfied condition: $condition"
1002 #endif
1003 EOF
1004 }
1005
1006 check_lib(){
1007 log check_lib "$@"
1008 name="$1"
1009 headers="$2"
1010 funcs="$3"
1011 shift 3
1012 disable $name
1013 check_func_headers "$headers" "$funcs" "$@" &&
1014 enable $name && eval ${name}_extralibs="\$@"
1015 }
1016
1017 test_pkg_config(){
1018 log test_pkg_config "$@"
1019 name="$1"
1020 pkg_version="$2"
1021 pkg="${2%% *}"
1022 headers="$3"
1023 funcs="$4"
1024 shift 4
1025 disable $name
1026 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1027 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1028 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1029 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1030 enable $name &&
1031 set_sanitized "${name}_cflags" $pkg_cflags &&
1032 set_sanitized "${name}_extralibs" $pkg_libs
1033 }
1034
1035 check_pkg_config(){
1036 log check_pkg_config "$@"
1037 name="$1"
1038 test_pkg_config "$@" &&
1039 eval add_cflags \$${name}_cflags
1040 }
1041
1042 check_exec(){
1043 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1044 }
1045
1046 check_exec_crash(){
1047 log check_exec_crash "$@"
1048 code=$(cat)
1049
1050 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1051 # are safe but may not be available everywhere. Thus we use
1052 # raise(SIGTERM) instead. The check is run in a subshell so we
1053 # can redirect the "Terminated" message from the shell. SIGBUS
1054 # is not defined by standard C so it is used conditionally.
1055
1056 (check_exec "$@") >> $logfile 2>&1 <<EOF
1057 #include <signal.h>
1058 static void sighandler(int sig){
1059 raise(SIGTERM);
1060 }
1061 int foo(void){
1062 $code
1063 }
1064 int (*func_ptr)(void) = foo;
1065 int main(void){
1066 signal(SIGILL, sighandler);
1067 signal(SIGFPE, sighandler);
1068 signal(SIGSEGV, sighandler);
1069 #ifdef SIGBUS
1070 signal(SIGBUS, sighandler);
1071 #endif
1072 return func_ptr();
1073 }
1074 EOF
1075 }
1076
1077 check_type(){
1078 log check_type "$@"
1079 headers=$1
1080 type=$2
1081 shift 2
1082 disable_sanitized "$type"
1083 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1084 }
1085
1086 check_struct(){
1087 log check_struct "$@"
1088 headers=$1
1089 struct=$2
1090 member=$3
1091 shift 3
1092 disable_sanitized "${struct}_${member}"
1093 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1094 enable_sanitized "${struct}_${member}"
1095 }
1096
1097 check_builtin(){
1098 log check_builtin "$@"
1099 name=$1
1100 headers=$2
1101 builtin=$3
1102 shift 3
1103 disable "$name"
1104 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1105 }
1106
1107 check_compile_assert(){
1108 log check_compile_assert "$@"
1109 name=$1
1110 headers=$2
1111 condition=$3
1112 shift 3
1113 disable "$name"
1114 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1115 }
1116
1117 require(){
1118 log require "$@"
1119 name_version="$1"
1120 name="${1%% *}"
1121 headers="$2"
1122 func="$3"
1123 shift 3
1124 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1125 }
1126
1127 require_header(){
1128 log require_header "$@"
1129 headers="$1"
1130 shift
1131 check_header "$headers" "$@" || die "ERROR: $headers not found"
1132 }
1133
1134 require_cpp_condition(){
1135 log require_cpp_condition "$@"
1136 header="$1"
1137 condition="$2"
1138 shift 2
1139 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1140 }
1141
1142 require_pkg_config(){
1143 log require_pkg_config "$@"
1144 pkg_version="$2"
1145 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1146 }
1147
1148 hostcc_e(){
1149 eval printf '%s\\n' $HOSTCC_E
1150 }
1151
1152 hostcc_o(){
1153 eval printf '%s\\n' $HOSTCC_O
1154 }
1155
1156 check_host_cc(){
1157 log check_host_cc "$@"
1158 cat > $TMPC
1159 log_file $TMPC
1160 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1161 }
1162
1163 check_host_cpp(){
1164 log check_host_cpp "$@"
1165 cat > $TMPC
1166 log_file $TMPC
1167 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1168 }
1169
1170 check_host_cppflags(){
1171 log check_host_cppflags "$@"
1172 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1173 #include <stdlib.h>;
1174 EOF
1175 }
1176
1177 check_host_cflags(){
1178 log check_host_cflags "$@"
1179 set -- $($host_cflags_filter "$@")
1180 check_host_cc "$@" <<EOF && append host_cflags "$@"
1181 int x;
1182 EOF
1183 }
1184
1185 check_host_cpp_condition(){
1186 log check_host_cpp_condition "$@"
1187 header=$1
1188 condition=$2
1189 shift 2
1190 check_host_cpp "$@" <<EOF
1191 #include <$header>
1192 #if !($condition)
1193 #error "unsatisfied condition: $condition"
1194 #endif
1195 EOF
1196 }
1197
1198 cp_if_changed(){
1199 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1200 mkdir -p "$(dirname $2)"
1201 cp -f "$1" "$2"
1202 }
1203
1204 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1205 # system-dependent things.
1206
1207 AVCODEC_COMPONENTS="
1208 bsfs
1209 decoders
1210 encoders
1211 hwaccels
1212 parsers
1213 "
1214
1215 AVDEVICE_COMPONENTS="
1216 indevs
1217 "
1218 AVFILTER_COMPONENTS="
1219 filters
1220 "
1221 AVFORMAT_COMPONENTS="
1222 demuxers
1223 muxers
1224 protocols
1225 "
1226
1227 COMPONENT_LIST="
1228 $AVCODEC_COMPONENTS
1229 $AVDEVICE_COMPONENTS
1230 $AVFILTER_COMPONENTS
1231 $AVFORMAT_COMPONENTS
1232 "
1233
1234 EXAMPLE_LIST="
1235 decode_audio_example
1236 decode_video_example
1237 encode_audio_example
1238 encode_video_example
1239 filter_audio_example
1240 metadata_example
1241 output_example
1242 qsvdec_example
1243 transcode_aac_example
1244 "
1245
1246 # catchall list of things that require external libs to link
1247 EXTRALIBS_LIST="
1248 cpu_init
1249 cws2fws
1250 "
1251
1252 HWACCEL_LIBRARY_NONFREE_LIST="
1253 cuda
1254 cuvid
1255 libnpp
1256 "
1257 HWACCEL_LIBRARY_LIST="
1258 $HWACCEL_LIBRARY_NONFREE_LIST
1259 amf
1260 d3d11va
1261 dxva2
1262 libmfx
1263 mmal
1264 nvenc
1265 omx
1266 vaapi
1267 vda
1268 vdpau
1269 "
1270
1271 EXTERNAL_LIBRARY_GPL_LIST="
1272 libcdio
1273 libx264
1274 libx265
1275 libxavs
1276 libxvid
1277 "
1278
1279 EXTERNAL_LIBRARY_NONFREE_LIST="
1280 libfaac
1281 libfdk_aac
1282 openssl
1283 "
1284
1285 EXTERNAL_LIBRARY_VERSION3_LIST="
1286 libopencore_amrnb
1287 libopencore_amrwb
1288 libvo_aacenc
1289 libvo_amrwbenc
1290 "
1291
1292 EXTERNAL_LIBRARY_LIST="
1293 $EXTERNAL_LIBRARY_GPL_LIST
1294 $EXTERNAL_LIBRARY_NONFREE_LIST
1295 $EXTERNAL_LIBRARY_VERSION3_LIST
1296 avisynth
1297 avxsynth
1298 frei0r
1299 gnutls
1300 libbs2b
1301 libdc1394
1302 libdcadec
1303 libfontconfig
1304 libfreetype
1305 libgsm
1306 libhdcd
1307 libilbc
1308 libjack
1309 libkvazaar
1310 libmp3lame
1311 libopencv
1312 libopenh264
1313 libopenjpeg
1314 libopus
1315 libpulse
1316 librtmp
1317 libschroedinger
1318 libsnappy
1319 libspeex
1320 libtheora
1321 libtwolame
1322 libvorbis
1323 libvpx
1324 libwavpack
1325 libwebp
1326 libxcb
1327 libxcb_shm
1328 libxcb_xfixes
1329 "
1330
1331 SYSTEM_LIBRARY_LIST="
1332 bzlib
1333 zlib
1334 "
1335
1336 FEATURE_LIST="
1337 gray
1338 hardcoded_tables
1339 omx_rpi
1340 runtime_cpudetect
1341 safe_bitstream_reader
1342 shared
1343 small
1344 sram
1345 static
1346 swscale_alpha
1347 "
1348
1349 LIBRARY_LIST="
1350 avcodec
1351 avdevice
1352 avfilter
1353 avformat
1354 avresample
1355 avutil
1356 swscale
1357 "
1358
1359 LICENSE_LIST="
1360 gpl
1361 nonfree
1362 version3
1363 "
1364
1365 PROGRAM_LIST="
1366 avconv
1367 avplay
1368 avprobe
1369 "
1370
1371 SUBSYSTEM_LIST="
1372 dct
1373 doc
1374 error_resilience
1375 faan
1376 fft
1377 lsp
1378 lzo
1379 mdct
1380 network
1381 rdft
1382 "
1383
1384 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1385 CONFIG_LIST="
1386 $EXAMPLE_LIST
1387 $EXTERNAL_LIBRARY_LIST
1388 $HWACCEL_LIBRARY_LIST
1389 $FEATURE_LIST
1390 $LICENSE_LIST
1391 $LIBRARY_LIST
1392 $PROGRAM_LIST
1393 $SUBSYSTEM_LIST
1394 $SYSTEM_LIBRARY_LIST
1395 neon_clobber_test
1396 pic
1397 pod2man
1398 texi2html
1399 thumb
1400 valgrind_backtrace
1401 xmm_clobber_test
1402 $COMPONENT_LIST
1403 "
1404
1405 THREADS_LIST="
1406 pthreads
1407 w32threads
1408 "
1409
1410 ATOMICS_LIST="
1411 atomics_gcc
1412 atomics_suncc
1413 atomics_win32
1414 "
1415
1416 ARCH_LIST="
1417 aarch64
1418 alpha
1419 arm
1420 avr32
1421 avr32_ap
1422 avr32_uc
1423 bfin
1424 ia64
1425 m68k
1426 mips
1427 mips64
1428 parisc
1429 ppc
1430 ppc64
1431 s390
1432 sh4
1433 sparc
1434 sparc64
1435 tilegx
1436 tilepro
1437 tomi
1438 x86
1439 x86_32
1440 x86_64
1441 "
1442
1443 ARCH_EXT_LIST_ARM="
1444 armv5te
1445 armv6
1446 armv6t2
1447 armv8
1448 neon
1449 vfp
1450 vfpv3
1451 "
1452
1453 ARCH_EXT_LIST_X86_SIMD="
1454 amd3dnow
1455 amd3dnowext
1456 avx
1457 avx2
1458 fma3
1459 fma4
1460 mmx
1461 mmxext
1462 sse
1463 sse2
1464 sse3
1465 sse4
1466 sse42
1467 ssse3
1468 xop
1469 "
1470
1471 ARCH_EXT_LIST_PPC="
1472 altivec
1473 dcbzl
1474 ldbrx
1475 power8
1476 ppc4xx
1477 vsx
1478 "
1479
1480 ARCH_EXT_LIST_X86="
1481 $ARCH_EXT_LIST_X86_SIMD
1482 cpunop
1483 i686
1484 "
1485
1486 ARCH_EXT_LIST_MIPS="
1487 loongson
1488 mips32r1
1489 mips64r1
1490 mips32r2
1491 mips64r2
1492 mips32r6
1493 mips64r6
1494 "
1495
1496 ARCH_EXT_LIST="
1497 $ARCH_EXT_LIST_ARM
1498 $ARCH_EXT_LIST_MIPS
1499 $ARCH_EXT_LIST_PPC
1500 $ARCH_EXT_LIST_X86
1501 vis
1502 "
1503
1504 ARCH_FEATURES="
1505 aligned_stack
1506 fast_64bit
1507 fast_clz
1508 fast_cmov
1509 local_aligned_8
1510 local_aligned_16
1511 local_aligned_32
1512 simd_align_16
1513 simd_align_32
1514 "
1515
1516 BUILTIN_LIST="
1517 atomic_cas_ptr
1518 machine_rw_barrier
1519 MemoryBarrier
1520 mm_empty
1521 rdtsc
1522 sem_timedwait
1523 sync_val_compare_and_swap
1524 "
1525 HAVE_LIST_CMDLINE="
1526 inline_asm
1527 symver
1528 x86asm
1529 "
1530
1531 HAVE_LIST_PUB="
1532 bigendian
1533 fast_unaligned
1534 "
1535
1536 HEADERS_LIST="
1537 AVFoundation_AVFoundation_h
1538 arpa_inet_h
1539 cdio_paranoia_h
1540 cdio_paranoia_paranoia_h
1541 dispatch_dispatch_h
1542 dev_bktr_ioctl_bt848_h
1543 dev_bktr_ioctl_meteor_h
1544 dev_ic_bt8xx_h
1545 dev_video_bktr_ioctl_bt848_h
1546 dev_video_meteor_ioctl_meteor_h
1547 direct_h
1548 dxgidebug_h
1549 dxva_h
1550 io_h
1551 machine_ioctl_bt848_h
1552 machine_ioctl_meteor_h
1553 malloc_h
1554 poll_h
1555 sys_param_h
1556 sys_resource_h
1557 sys_select_h
1558 sys_soundcard_h
1559 sys_time_h
1560 sys_un_h
1561 sys_videoio_h
1562 unistd_h
1563 valgrind_valgrind_h
1564 windows_h
1565 winsock2_h
1566 "
1567
1568 INTRINSICS_LIST="
1569 intrinsics_neon
1570 "
1571
1572 MATH_FUNCS="
1573 atanf
1574 atan2f
1575 cbrtf
1576 cosf
1577 exp2
1578 exp2f
1579 expf
1580 isinf
1581 isnan
1582 ldexpf
1583 llrint
1584 llrintf
1585 log2
1586 log2f
1587 log10f
1588 lrint
1589 lrintf
1590 powf
1591 rint
1592 round
1593 roundf
1594 sinf
1595 trunc
1596 truncf
1597 "
1598
1599 SYSTEM_FEATURES="
1600 dos_paths
1601 libc_msvcrt
1602 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1603 section_data_rel_ro
1604 threads
1605 uwp
1606 "
1607
1608 SYSTEM_FUNCS="
1609 aligned_malloc
1610 clock_gettime
1611 closesocket
1612 CommandLineToArgvW
1613 fcntl
1614 getaddrinfo
1615 gethrtime
1616 getopt
1617 GetProcessAffinityMask
1618 GetProcessMemoryInfo
1619 GetProcessTimes
1620 getrusage
1621 GetSystemTimeAsFileTime
1622 gettimeofday
1623 gmtime_r
1624 inet_aton
1625 isatty
1626 localtime_r
1627 mach_absolute_time
1628 MapViewOfFile
1629 memalign
1630 mmap
1631 mprotect
1632 nanosleep
1633 posix_memalign
1634 sched_getaffinity
1635 SetConsoleTextAttribute
1636 setmode
1637 setrlimit
1638 Sleep
1639 strerror_r
1640 sysconf
1641 sysctl
1642 usleep
1643 VirtualAlloc
1644 "
1645
1646 SYSTEM_LIBRARIES="
1647 sdl
1648 vaapi_1
1649 vaapi_drm
1650 vaapi_x11
1651 vdpau_x11
1652 wincrypt
1653 "
1654
1655 TOOLCHAIN_FEATURES="
1656 as_arch_directive
1657 as_fpu_directive
1658 as_func
1659 as_object_arch
1660 asm_mod_q
1661 blocks_extension
1662 ebp_available
1663 ebx_available
1664 gnu_as
1665 ibm_asm
1666 inline_asm_labels
1667 pragma_deprecated
1668 symver_asm_label
1669 symver_gnu_asm
1670 vfp_args
1671 xform_asm
1672 xmm_clobbers
1673 "
1674
1675 TYPES_LIST="
1676 CONDITION_VARIABLE_Ptr
1677 CUVIDDECODECREATEINFO_bitDepthMinus8
1678 socklen_t
1679 struct_addrinfo
1680 struct_group_source_req
1681 struct_ip_mreq_source
1682 struct_ipv6_mreq
1683 struct_pollfd
1684 struct_rusage_ru_maxrss
1685 struct_sockaddr_in6
1686 struct_sockaddr_sa_len
1687 struct_sockaddr_storage
1688 struct_v4l2_frmivalenum_discrete
1689 "
1690
1691 HAVE_LIST="
1692 $ARCH_EXT_LIST
1693 $(add_suffix _external $ARCH_EXT_LIST)
1694 $(add_suffix _inline $ARCH_EXT_LIST)
1695 $ARCH_FEATURES
1696 $BUILTIN_LIST
1697 $HAVE_LIST_CMDLINE
1698 $HAVE_LIST_PUB
1699 $HEADERS_LIST
1700 $INTRINSICS_LIST
1701 $MATH_FUNCS
1702 $SYSTEM_FEATURES
1703 $SYSTEM_FUNCS
1704 $SYSTEM_LIBRARIES
1705 $THREADS_LIST
1706 $TOOLCHAIN_FEATURES
1707 $TYPES_LIST
1708 "
1709
1710 # options emitted with CONFIG_ prefix but not available on the command line
1711 CONFIG_EXTRA="
1712 aandcttables
1713 ac3dsp
1714 adts_header
1715 audio_frame_queue
1716 audiodsp
1717 blockdsp
1718 bswapdsp
1719 cabac
1720 cbs
1721 cbs_h264
1722 cbs_h265
1723 cbs_mpeg2
1724 dirac_parse
1725 dvprofile
1726 faandct
1727 faanidct
1728 fdctdsp
1729 flacdsp
1730 fmtconvert
1731 g722dsp
1732 gmp
1733 golomb
1734 gplv3
1735 h263dsp
1736 h264chroma
1737 h264dsp
1738 h264parse
1739 h264pred
1740 h264qpel
1741 hevcparse
1742 hpeldsp
1743 huffman
1744 huffyuvdsp
1745 huffyuvencdsp
1746 idctdsp
1747 iirfilter
1748 imdct15
1749 intrax8
1750 iso_media
1751 ividsp
1752 jpegtables
1753 lgplv3
1754 libx262
1755 libxcb_shape
1756 lpc
1757 lzf
1758 me_cmp
1759 mpeg_er
1760 mpegaudio
1761 mpegaudiodsp
1762 mpegaudioheader
1763 mpegvideo
1764 mpegvideoenc
1765 mss34dsp
1766 pixblockdsp
1767 qpeldsp
1768 qsv
1769 qsvdec
1770 qsvenc
1771 qsvvpp
1772 rangecoder
1773 riffdec
1774 riffenc
1775 rtpdec
1776 rtpenc_chain
1777 rv34dsp
1778 sinewin
1779 snappy
1780 srtp
1781 startcode
1782 texturedsp
1783 texturedspenc
1784 tpeldsp
1785 vaapi_encode
1786 vc1dsp
1787 videodsp
1788 vp3dsp
1789 vp56dsp
1790 vp8dsp
1791 wma_freqs
1792 wmv2dsp
1793 "
1794
1795 CMDLINE_SELECT="
1796 $ARCH_EXT_LIST
1797 $CONFIG_LIST
1798 $HAVE_LIST_CMDLINE
1799 $THREADS_LIST
1800 asm
1801 cross_compile
1802 debug
1803 extra_warnings
1804 logging
1805 lto
1806 optimizations
1807 rpath
1808 "
1809
1810 PATHS_LIST="
1811 bindir
1812 datadir
1813 docdir
1814 incdir
1815 libdir
1816 mandir
1817 prefix
1818 shlibdir
1819 "
1820
1821 CMDLINE_SET="
1822 $PATHS_LIST
1823 ar
1824 arch
1825 as
1826 cc
1827 objcc
1828 cpu
1829 cross_prefix
1830 custom_allocator
1831 dep_cc
1832 env
1833 extra_version
1834 host_cc
1835 host_cflags
1836 host_extralibs
1837 host_ld
1838 host_ldflags
1839 host_os
1840 ignore_tests
1841 ld
1842 logfile
1843 malloc_prefix
1844 nm
1845 optflags
1846 pkg_config
1847 pkg_config_flags
1848 samples
1849 sysinclude
1850 sysroot
1851 target_exec
1852 target_os
1853 target_path
1854 target_samples
1855 toolchain
1856 x86asmexe
1857 "
1858
1859 CMDLINE_APPEND="
1860 extra_cflags
1861 extra_objcflags
1862 host_cppflags
1863 "
1864
1865 # code dependency declarations
1866
1867 # architecture extensions
1868
1869 armv5te_deps="arm"
1870 armv6_deps="arm"
1871 armv6t2_deps="arm"
1872 armv8_deps="aarch64"
1873 neon_deps_any="aarch64 arm"
1874 intrinsics_neon_deps="neon"
1875 vfp_deps_any="aarch64 arm"
1876 vfpv3_deps="vfp"
1877
1878 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1879
1880 altivec_deps="ppc"
1881 dcbzl_deps="ppc"
1882 ldbrx_deps="ppc"
1883 ppc4xx_deps="ppc"
1884 vsx_deps="altivec"
1885 power8_deps="vsx"
1886
1887 loongson_deps="mips"
1888 mips32r1_deps="mips32"
1889 mips32r2_deps="mips32"
1890 mips32r6_deps="mips32"
1891 mips64r1_deps="mips64"
1892 mips64r2_deps="mips64"
1893 mips64r6_deps="mips64"
1894
1895 vis_deps="sparc"
1896
1897 cpunop_deps="i686"
1898 x86_64_select="i686"
1899 x86_64_suggest="fast_cmov"
1900
1901 amd3dnow_deps="mmx"
1902 amd3dnowext_deps="amd3dnow"
1903 i686_deps="x86"
1904 mmx_deps="x86"
1905 mmxext_deps="mmx"
1906 sse_deps="mmxext"
1907 sse2_deps="sse"
1908 sse3_deps="sse2"
1909 ssse3_deps="sse3"
1910 sse4_deps="ssse3"
1911 sse42_deps="sse4"
1912 avx_deps="sse42"
1913 xop_deps="avx"
1914 fma3_deps="avx"
1915 fma4_deps="avx"
1916 avx2_deps="avx"
1917
1918 mmx_external_deps="x86asm"
1919 mmx_inline_deps="inline_asm x86"
1920 mmx_suggest="mmx_external mmx_inline"
1921
1922 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1923 eval dep=\$${ext}_deps
1924 eval ${ext}_external_deps='"${dep}_external"'
1925 eval ${ext}_inline_deps='"${dep}_inline"'
1926 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1927 done
1928
1929 aligned_stack_if_any="aarch64 ppc x86"
1930 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1931 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1932 fast_unaligned_if_any="aarch64 ppc x86"
1933 simd_align_16_if_any="altivec neon sse"
1934 simd_align_32_if_any="avx"
1935
1936 # system capabilities
1937 symver_if_any="symver_asm_label symver_gnu_asm"
1938 valgrind_backtrace_conflict="optimizations"
1939 valgrind_backtrace_deps="valgrind_valgrind_h"
1940
1941 # threading support
1942 atomics_gcc_if="sync_val_compare_and_swap"
1943 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1944 atomics_win32_if="MemoryBarrier"
1945 atomics_native_if_any="$ATOMICS_LIST"
1946 w32threads_deps="atomics_native"
1947 threads_if_any="$THREADS_LIST"
1948
1949 # subsystems
1950 cbs_h264_select="cbs golomb"
1951 cbs_h265_select="cbs golomb"
1952 cbs_mpeg2_select="cbs"
1953 dct_select="rdft"
1954 dirac_parse_select="golomb"
1955 error_resilience_select="me_cmp"
1956 faandct_deps="faan"
1957 faandct_select="fdctdsp"
1958 faanidct_deps="faan"
1959 faanidct_select="idctdsp"
1960 h264dsp_select="startcode"
1961 hevcparse_select="golomb"
1962 intrax8_select="blockdsp idctdsp"
1963 mdct_select="fft"
1964 rdft_select="fft"
1965 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1966 mpeg_er_select="error_resilience"
1967 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1968 mpegaudiodsp_select="dct"
1969 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1970 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1971 vc1dsp_select="h264chroma qpeldsp startcode"
1972
1973 # decoders / encoders
1974 aac_decoder_select="adts_header imdct15 mdct sinewin"
1975 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1976 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1977 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1978 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1979 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1980 adpcm_g722_decoder_select="g722dsp"
1981 adpcm_g722_encoder_select="g722dsp"
1982 aic_decoder_select="golomb idctdsp"
1983 alac_encoder_select="lpc"
1984 als_decoder_select="bswapdsp"
1985 amrnb_decoder_select="lsp"
1986 amrwb_decoder_select="lsp"
1987 amv_decoder_select="sp5x_decoder"
1988 ape_decoder_select="bswapdsp"
1989 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1990 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1991 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1992 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1993 atrac1_decoder_select="mdct sinewin"
1994 atrac3_decoder_select="mdct"
1995 atrac3p_decoder_select="mdct sinewin"
1996 bink_decoder_select="blockdsp hpeldsp"
1997 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1998 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1999 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2000 clearvideo_decoder_select="idctdsp"
2001 cllc_decoder_select="bswapdsp"
2002 comfortnoise_encoder_select="lpc"
2003 cook_decoder_select="audiodsp mdct sinewin"
2004 cscd_decoder_select="lzo"
2005 cscd_decoder_suggest="zlib"
2006 dca_decoder_select="fmtconvert mdct"
2007 dds_decoder_select="texturedsp"
2008 dnxhd_decoder_select="blockdsp idctdsp"
2009 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2010 dvvideo_decoder_select="dvprofile idctdsp"
2011 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2012 dxa_decoder_deps="zlib"
2013 dxv_decoder_select="lzf texturedsp"
2014 eac3_decoder_select="ac3_decoder"
2015 eac3_encoder_select="ac3_encoder"
2016 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2017 eatgq_decoder_select="aandcttables idctdsp"
2018 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2019 exr_decoder_deps="zlib"
2020 ffv1_decoder_select="rangecoder"
2021 ffv1_encoder_select="rangecoder"
2022 ffvhuff_decoder_select="huffyuv_decoder"
2023 ffvhuff_encoder_select="huffyuv_encoder"
2024 fic_decoder_select="golomb"
2025 flac_decoder_select="flacdsp"
2026 flac_encoder_select="bswapdsp flacdsp lpc"
2027 flashsv_decoder_deps="zlib"
2028 flashsv_encoder_deps="zlib"
2029 flashsv2_decoder_deps="zlib"
2030 flv_decoder_select="h263_decoder"
2031 flv_encoder_select="h263_encoder"
2032 fourxm_decoder_select="blockdsp bswapdsp"
2033 fraps_decoder_select="bswapdsp huffman"
2034 g2m_decoder_deps="zlib"
2035 g2m_decoder_select="blockdsp idctdsp jpegtables"
2036 h261_decoder_select="mpeg_er mpegvideo"
2037 h261_encoder_select="aandcttables mpegvideoenc"
2038 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2039 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2040 h263i_decoder_select="h263_decoder"
2041 h263p_encoder_select="h263_encoder"
2042 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2043 h264_decoder_suggest="error_resilience"
2044 hap_decoder_select="snappy texturedsp"
2045 hap_encoder_deps="libsnappy"
2046 hap_encoder_select="texturedspenc"
2047 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2048 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2049 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2050 iac_decoder_select="imc_decoder"
2051 imc_decoder_select="bswapdsp fft mdct sinewin"
2052 indeo3_decoder_select="hpeldsp"
2053 indeo4_decoder_select="ividsp"
2054 indeo5_decoder_select="ividsp"
2055 interplay_video_decoder_select="hpeldsp"
2056 jpegls_decoder_select="mjpeg_decoder"
2057 jv_decoder_select="blockdsp"
2058 lagarith_decoder_select="huffyuvdsp"
2059 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2060 magicyuv_decoder_select="huffyuvdsp"
2061 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2062 metasound_decoder_select="lsp mdct sinewin"
2063 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2064 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2065 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2066 mjpegb_decoder_select="mjpeg_decoder"
2067 mlp_decoder_select="mlp_parser"
2068 motionpixels_decoder_select="bswapdsp"
2069 mp1_decoder_select="mpegaudio"
2070 mp1float_decoder_select="mpegaudio"
2071 mp2_decoder_select="mpegaudio"
2072 mp2float_decoder_select="mpegaudio"
2073 mp3_decoder_select="mpegaudio"
2074 mp3adu_decoder_select="mpegaudio"
2075 mp3adufloat_decoder_select="mpegaudio"
2076 mp3float_decoder_select="mpegaudio"
2077 mp3on4_decoder_select="mpegaudio"
2078 mp3on4float_decoder_select="mpegaudio"
2079 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2080 mpc8_decoder_select="mpegaudiodsp"
2081 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2082 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2083 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2084 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2085 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2086 mpeg4_encoder_select="h263_encoder"
2087 msa1_decoder_select="mss34dsp"
2088 msmpeg4v1_decoder_select="h263_decoder"
2089 msmpeg4v2_decoder_select="h263_decoder"
2090 msmpeg4v2_encoder_select="h263_encoder"
2091 msmpeg4v3_decoder_select="h263_decoder"
2092 msmpeg4v3_encoder_select="h263_encoder"
2093 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2094 mts2_decoder_select="mss34dsp"
2095 mxpeg_decoder_select="mjpeg_decoder"
2096 nellymoser_decoder_select="mdct sinewin"
2097 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2098 nuv_decoder_select="idctdsp lzo"
2099 on2avc_decoder_select="mdct"
2100 opus_decoder_deps="avresample"
2101 opus_decoder_select="imdct15"
2102 png_decoder_deps="zlib"
2103 png_encoder_deps="zlib"
2104 png_encoder_select="huffyuvencdsp"
2105 prores_decoder_select="idctdsp"
2106 prores_encoder_select="fdctdsp"
2107 qcelp_decoder_select="lsp"
2108 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2109 ra_144_encoder_select="audio_frame_queue lpc"
2110 ralf_decoder_select="golomb"
2111 rscc_decoder_deps="zlib"
2112 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2113 rv10_encoder_select="h263_encoder"
2114 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2115 rv20_encoder_select="h263_encoder"
2116 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2117 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2118 screenpresso_decoder_deps="zlib"
2119 sipr_decoder_select="lsp"
2120 sp5x_decoder_select="mjpeg_decoder"
2121 svq1_decoder_select="hpeldsp"
2122 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2123 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2124 svq3_decoder_suggest="zlib"
2125 tak_decoder_select="audiodsp"
2126 tdsc_decoder_deps="zlib"
2127 tdsc_decoder_select="mjpeg_decoder"
2128 theora_decoder_select="vp3_decoder"
2129 thp_decoder_select="mjpeg_decoder"
2130 tiff_decoder_suggest="zlib"
2131 tiff_encoder_suggest="zlib"
2132 truehd_decoder_select="mlp_decoder"
2133 truemotion2_decoder_select="bswapdsp"
2134 truespeech_decoder_select="bswapdsp"
2135 tscc_decoder_deps="zlib"
2136 txd_decoder_select="texturedsp"
2137 twinvq_decoder_select="mdct lsp sinewin"
2138 utvideo_decoder_select="bswapdsp huffyuvdsp"
2139 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2140 vble_decoder_select="huffyuvdsp"
2141 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2142 vc1image_decoder_select="vc1_decoder"
2143 vorbis_decoder_select="mdct"
2144 vorbis_encoder_select="mdct"
2145 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2146 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2147 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2148 vp6a_decoder_select="vp6_decoder"
2149 vp6f_decoder_select="vp6_decoder"
2150 vp7_decoder_select="h264pred videodsp vp8dsp"
2151 vp8_decoder_select="h264pred videodsp vp8dsp"
2152 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2153 webp_decoder_select="vp8_decoder"
2154 wmapro_decoder_select="mdct sinewin wma_freqs"
2155 wmav1_decoder_select="mdct sinewin wma_freqs"
2156 wmav1_encoder_select="mdct sinewin wma_freqs"
2157 wmav2_decoder_select="mdct sinewin wma_freqs"
2158 wmav2_encoder_select="mdct sinewin wma_freqs"
2159 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2160 wmv1_decoder_select="h263_decoder"
2161 wmv1_encoder_select="h263_encoder"
2162 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2163 wmv2_encoder_select="h263_encoder wmv2dsp"
2164 wmv3_decoder_select="vc1_decoder"
2165 wmv3image_decoder_select="wmv3_decoder"
2166 zerocodec_decoder_deps="zlib"
2167 zlib_decoder_deps="zlib"
2168 zlib_encoder_deps="zlib"
2169 zmbv_decoder_deps="zlib"
2170 zmbv_encoder_deps="zlib"
2171
2172 # hardware accelerators
2173 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2174 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2175 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2176 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2177
2178 h263_vaapi_hwaccel_deps="vaapi"
2179 h263_vaapi_hwaccel_select="h263_decoder"
2180 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2181 h264_cuvid_hwaccel_select="h264_decoder"
2182 h264_d3d11va_hwaccel_deps="d3d11va"
2183 h264_d3d11va_hwaccel_select="h264_decoder"
2184 h264_d3d11va2_hwaccel_deps="d3d11va"
2185 h264_d3d11va2_hwaccel_select="h264_decoder"
2186 h264_dxva2_hwaccel_deps="dxva2"
2187 h264_dxva2_hwaccel_select="h264_decoder"
2188 h264_vaapi_hwaccel_deps="vaapi"
2189 h264_vaapi_hwaccel_select="h264_decoder"
2190 h264_vda_hwaccel_deps="vda"
2191 h264_vda_hwaccel_select="h264_decoder"
2192 h264_vda_old_hwaccel_deps="vda"
2193 h264_vda_old_hwaccel_select="h264_decoder"
2194 h264_vdpau_hwaccel_deps="vdpau"
2195 h264_vdpau_hwaccel_select="h264_decoder"
2196 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2197 hevc_cuvid_hwaccel_select="hevc_decoder"
2198 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2199 hevc_d3d11va_hwaccel_select="hevc_decoder"
2200 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2201 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2202 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2203 hevc_dxva2_hwaccel_select="hevc_decoder"
2204 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2205 hevc_vaapi_hwaccel_select="hevc_decoder"
2206 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2207 hevc_vdpau_hwaccel_select="hevc_decoder"
2208 mpeg1_vdpau_hwaccel_deps="vdpau"
2209 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2210 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2211 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2212 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2213 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2214 mpeg2_dxva2_hwaccel_deps="dxva2"
2215 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2216 mpeg2_vaapi_hwaccel_deps="vaapi"
2217 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2218 mpeg2_vdpau_hwaccel_deps="vdpau"
2219 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2220 mpeg4_vaapi_hwaccel_deps="vaapi"
2221 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2222 mpeg4_vdpau_hwaccel_deps="vdpau"
2223 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2224 vc1_d3d11va_hwaccel_deps="d3d11va"
2225 vc1_d3d11va_hwaccel_select="vc1_decoder"
2226 vc1_d3d11va2_hwaccel_deps="d3d11va"
2227 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2228 vc1_dxva2_hwaccel_deps="dxva2"
2229 vc1_dxva2_hwaccel_select="vc1_decoder"
2230 vc1_vaapi_hwaccel_deps="vaapi"
2231 vc1_vaapi_hwaccel_select="vc1_decoder"
2232 vc1_vdpau_hwaccel_deps="vdpau"
2233 vc1_vdpau_hwaccel_select="vc1_decoder"
2234 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2235 vp8_vaapi_hwaccel_select="vp8_decoder"
2236 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2237 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2238 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2239 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2240 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2241
2242 # hardware-accelerated codecs
2243 amf_deps_any="libdl LoadLibrary"
2244 nvenc_deps_any="libdl LoadLibrary"
2245 omx_deps="libdl pthreads"
2246 omx_rpi_select="omx"
2247 qsv_deps="libmfx"
2248 qsvdec_select="qsv"
2249 qsvenc_select="qsv"
2250 qsvvpp_select="qsv"
2251 vaapi_encode_deps="vaapi"
2252
2253 hwupload_cuda_filter_deps="cuda"
2254 scale_npp_filter_deps="cuda libnpp"
2255
2256 h264_amf_encoder_deps="amf"
2257 h264_mmal_decoder_deps="mmal"
2258 h264_nvenc_encoder_deps="nvenc"
2259 h264_omx_encoder_deps="omx"
2260 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2261 h264_qsv_encoder_select="qsvenc"
2262 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2263 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2264 hevc_amf_encoder_deps="amf"
2265 hevc_nvenc_encoder_deps="nvenc"
2266 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2267 hevc_qsv_encoder_select="hevcparse qsvenc"
2268 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2269 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2270 mjpeg_qsv_encoder_deps="libmfx"
2271 mjpeg_qsv_encoder_select="qsvenc"
2272 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2273 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2274 mpeg2_mmal_decoder_deps="mmal"
2275 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2276 mpeg2_qsv_encoder_select="qsvenc"
2277 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2278 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2279 mpeg4_omx_encoder_deps="omx"
2280 vc1_mmal_decoder_deps="mmal"
2281 vc1_qsv_decoder_select="qsvdec vc1_parser"
2282 vp8_qsv_decoder_select="qsvdec vp8_parser"
2283 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2284 vp8_vaapi_encoder_select="vaapi_encode"
2285 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2286 vp9_vaapi_encoder_select="vaapi_encode"
2287
2288 nvenc_h264_encoder_select="h264_nvenc_encoder"
2289 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2290
2291 # parsers
2292 aac_parser_select="adts_header"
2293 h264_parser_select="golomb h264dsp h264parse"
2294 hevc_parser_select="hevcparse"
2295 mpegaudio_parser_select="mpegaudioheader"
2296 mpegvideo_parser_select="mpegvideo"
2297 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2298 vc1_parser_select="vc1dsp"
2299
2300 # bitstream_filters
2301 aac_adtstoasc_bsf_select="adts_header"
2302 h264_metadata_bsf_select="cbs_h264"
2303 h264_redundant_pps_bsf_select="cbs_h264"
2304 hevc_metadata_bsf_select="cbs_h265"
2305 mjpeg2jpeg_bsf_select="jpegtables"
2306 mpeg2_metadata_bsf_select="cbs_mpeg2"
2307 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2308
2309 # external libraries
2310 avisynth_deps="LoadLibrary"
2311 avxsynth_deps="libdl"
2312 avisynth_demuxer_deps_any="avisynth avxsynth"
2313 avisynth_demuxer_select="riffdec"
2314 libdcadec_decoder_deps="libdcadec"
2315 libfaac_encoder_deps="libfaac"
2316 libfaac_encoder_select="audio_frame_queue"
2317 libfdk_aac_decoder_deps="libfdk_aac"
2318 libfdk_aac_encoder_deps="libfdk_aac"
2319 libfdk_aac_encoder_select="audio_frame_queue"
2320 libgsm_decoder_deps="libgsm"
2321 libgsm_encoder_deps="libgsm"
2322 libgsm_ms_decoder_deps="libgsm"
2323 libgsm_ms_encoder_deps="libgsm"
2324 libilbc_decoder_deps="libilbc"
2325 libilbc_encoder_deps="libilbc"
2326 libkvazaar_encoder_deps="libkvazaar"
2327 libmp3lame_encoder_deps="libmp3lame"
2328 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2329 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2330 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2331 libopencore_amrnb_encoder_select="audio_frame_queue"
2332 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2333 libopenh264_decoder_deps="libopenh264"
2334 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2335 libopenh264_encoder_deps="libopenh264"
2336 libopenjpeg_decoder_deps="libopenjpeg"
2337 libopenjpeg_encoder_deps="libopenjpeg"
2338 libopus_decoder_deps="libopus"
2339 libopus_encoder_deps="libopus"
2340 libopus_encoder_select="audio_frame_queue"
2341 libschroedinger_decoder_deps="libschroedinger"
2342 libschroedinger_encoder_deps="libschroedinger"
2343 libspeex_decoder_deps="libspeex"
2344 libspeex_encoder_deps="libspeex"
2345 libspeex_encoder_select="audio_frame_queue"
2346 libtheora_encoder_deps="libtheora"
2347 libtwolame_encoder_deps="libtwolame"
2348 libvo_aacenc_encoder_deps="libvo_aacenc"
2349 libvo_aacenc_encoder_select="audio_frame_queue"
2350 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2351 libvorbis_encoder_deps="libvorbis"
2352 libvorbis_encoder_select="audio_frame_queue"
2353 libvpx_vp8_decoder_deps="libvpx"
2354 libvpx_vp8_encoder_deps="libvpx"
2355 libvpx_vp9_decoder_deps="libvpx"
2356 libvpx_vp9_encoder_deps="libvpx"
2357 libwavpack_encoder_deps="libwavpack"
2358 libwavpack_encoder_select="audio_frame_queue"
2359 libwebp_encoder_deps="libwebp"
2360 libx262_encoder_deps="libx262"
2361 libx264_encoder_deps="libx264"
2362 libx265_encoder_deps="libx265"
2363 libxavs_encoder_deps="libxavs"
2364 libxvid_encoder_deps="libxvid mkstemp"
2365
2366 # demuxers / muxers
2367 ac3_demuxer_select="ac3_parser"
2368 asf_demuxer_select="riffdec"
2369 asf_muxer_select="riffenc"
2370 asf_stream_muxer_select="asf_muxer"
2371 avi_demuxer_select="iso_media riffdec"
2372 avi_muxer_select="riffenc"
2373 caf_demuxer_select="iso_media riffdec"
2374 dash_muxer_select="mp4_muxer"
2375 dirac_demuxer_select="dirac_parser"
2376 dv_demuxer_select="dvprofile"
2377 dv_muxer_select="dvprofile"
2378 dxa_demuxer_select="riffdec"
2379 eac3_demuxer_select="ac3_parser"
2380 f4v_muxer_select="mov_muxer"
2381 flac_demuxer_select="flac_parser"
2382 hds_muxer_select="flv_muxer"
2383 hls_muxer_select="mpegts_muxer"
2384 ipod_muxer_select="mov_muxer"
2385 ismv_muxer_select="mov_muxer"
2386 matroska_audio_muxer_select="matroska_muxer"
2387 matroska_demuxer_select="iso_media riffdec"
2388 matroska_demuxer_suggest="bzlib lzo zlib"
2389 matroska_muxer_select="iso_media riffenc"
2390 mmf_muxer_select="riffenc"
2391 mov_demuxer_select="iso_media riffdec"
2392 mov_demuxer_suggest="zlib"
2393 mov_muxer_select="iso_media riffenc rtpenc_chain"
2394 mp3_demuxer_select="mpegaudio_parser"
2395 mp3_muxer_select="mpegaudioheader"
2396 mp4_muxer_select="mov_muxer"
2397 mpegts_demuxer_select="iso_media"
2398 mpegts_muxer_select="adts_muxer latm_muxer"
2399 mpegtsraw_demuxer_select="mpegts_demuxer"
2400 mxf_d10_muxer_select="mxf_muxer"
2401 nut_muxer_select="riffenc"
2402 nuv_demuxer_select="riffdec"
2403 oga_muxer_select="ogg_muxer"
2404 ogg_demuxer_select="dirac_parse"
2405 opus_muxer_select="ogg_muxer"
2406 psp_muxer_select="mov_muxer"
2407 rtp_demuxer_select="sdp_demuxer"
2408 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2409 rtsp_demuxer_select="http_protocol rtpdec"
2410 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2411 sap_demuxer_select="sdp_demuxer"
2412 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2413 sdp_demuxer_select="rtpdec"
2414 smoothstreaming_muxer_select="ismv_muxer"
2415 spdif_demuxer_select="adts_header"
2416 spdif_muxer_select="adts_header"
2417 spx_muxer_select="ogg_muxer"
2418 swf_demuxer_suggest="zlib"
2419 tak_demuxer_select="tak_parser"
2420 tg2_muxer_select="mov_muxer"
2421 tgp_muxer_select="mov_muxer"
2422 w64_demuxer_select="wav_demuxer"
2423 wav_demuxer_select="riffdec"
2424 wav_muxer_select="riffenc"
2425 webm_muxer_select="iso_media riffenc"
2426 wtv_demuxer_select="mpegts_demuxer riffdec"
2427 xmv_demuxer_select="riffdec"
2428 xwma_demuxer_select="riffdec"
2429
2430 # indevs
2431 alsa_indev_deps="alsa"
2432 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2433 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2434 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2435 fbdev_indev_deps="linux_fb_h"
2436 jack_indev_deps="libjack"
2437 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2438 libcdio_indev_deps="libcdio"
2439 libdc1394_indev_deps="libdc1394"
2440 oss_indev_deps_any="sys_soundcard_h"
2441 pulse_indev_deps="libpulse"
2442 sndio_indev_deps="sndio"
2443 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2444 vfwcap_indev_deps="vfw32 vfwcap_defines"
2445 xcbgrab_indev_deps="libxcb libxcb_shape"
2446 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2447
2448 # protocols
2449 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2450 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2451 ffrtmpcrypt_protocol_select="tcp_protocol"
2452 ffrtmphttp_protocol_conflict="librtmp_protocol"
2453 ffrtmphttp_protocol_select="http_protocol"
2454 gopher_protocol_select="network"
2455 http_protocol_select="tcp_protocol"
2456 http_protocol_suggest="zlib"
2457 httpproxy_protocol_select="tcp_protocol"
2458 httpproxy_protocol_suggest="zlib"
2459 https_protocol_select="tls_protocol"
2460 https_protocol_suggest="zlib"
2461 icecast_protocol_select="http_protocol"
2462 librtmp_protocol_deps="librtmp"
2463 librtmpe_protocol_deps="librtmp"
2464 librtmps_protocol_deps="librtmp"
2465 librtmpt_protocol_deps="librtmp"
2466 librtmpte_protocol_deps="librtmp"
2467 mmsh_protocol_select="http_protocol"
2468 mmst_protocol_select="network"
2469 rtmp_protocol_conflict="librtmp_protocol"
2470 rtmp_protocol_select="tcp_protocol"
2471 rtmp_protocol_suggest="zlib"
2472 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2473 rtmpe_protocol_suggest="zlib"
2474 rtmps_protocol_conflict="librtmp_protocol"
2475 rtmps_protocol_select="tls_protocol"
2476 rtmps_protocol_suggest="zlib"
2477 rtmpt_protocol_select="ffrtmphttp_protocol"
2478 rtmpt_protocol_suggest="zlib"
2479 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2480 rtmpte_protocol_suggest="zlib"
2481 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2482 rtmpts_protocol_suggest="zlib"
2483 rtp_protocol_select="udp_protocol"
2484 sctp_protocol_deps="struct_sctp_event_subscribe"
2485 sctp_protocol_select="network"
2486 srtp_protocol_select="rtp_protocol srtp"
2487 tcp_protocol_select="network"
2488 tls_protocol_deps_any="gnutls openssl"
2489 tls_protocol_select="tcp_protocol"
2490 udp_protocol_select="network"
2491 unix_protocol_deps="sys_un_h"
2492 unix_protocol_select="network"
2493
2494 # filters
2495 asyncts_filter_deps="avresample"
2496 blackframe_filter_deps="gpl"
2497 boxblur_filter_deps="gpl"
2498 bs2b_filter_deps="libbs2b"
2499 cropdetect_filter_deps="gpl"
2500 deinterlace_qsv_filter_deps="libmfx"
2501 deinterlace_vaapi_filter_deps="vaapi"
2502 delogo_filter_deps="gpl"
2503 drawtext_filter_deps="libfreetype"
2504 drawtext_filter_suggest="libfontconfig"
2505 frei0r_filter_deps="frei0r libdl"
2506 frei0r_src_filter_deps="frei0r libdl"
2507 hdcd_filter_deps="libhdcd"
2508 hqdn3d_filter_deps="gpl"
2509 interlace_filter_deps="gpl"
2510 movie_filter_deps="avcodec avformat"
2511 ocv_filter_deps="libopencv"
2512 overlay_qsv_filter_deps="libmfx"
2513 overlay_qsv_filter_select="qsvvpp"
2514 resample_filter_deps="avresample"
2515 scale_filter_deps="swscale"
2516 scale_qsv_filter_deps="libmfx"
2517 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2518 vpp_qsv_filter_deps="libmfx"
2519 vpp_qsv_filter_select="qsvvpp"
2520
2521 # examples
2522 decode_audio_example_deps="avcodec avutil"
2523 decode_video_example_deps="avcodec avutil"
2524 encode_audio_example_deps="avcodec avutil"
2525 encode_video_example_deps="avcodec avutil"
2526 filter_audio_example_deps="avfilter avutil"
2527 metadata_example_deps="avformat avutil"
2528 output_example_deps="avcodec avformat avresample avutil swscale"
2529 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2530 transcode_aac_example_deps="avcodec avformat avresample"
2531
2532 # EXTRALIBS_LIST
2533 cpu_init_extralibs="pthreads_extralibs"
2534 cws2fws_extralibs="zlib_extralibs"
2535
2536 # libraries, in linking order
2537 avcodec_deps="avutil"
2538 avcodec_select="null_bsf"
2539 avdevice_deps="avformat avcodec avutil"
2540 avfilter_deps="avutil"
2541 avformat_deps="avcodec avutil"
2542 avformat_suggest="network"
2543 avresample_deps="avutil"
2544 swscale_deps="avutil"
2545
2546 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2547 avdevice_extralibs="libm_extralibs"
2548 avformat_extralibs="libm_extralibs"
2549 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2550 avresample_extralibs="libm_extralibs"
2551 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"
2552 swscale_extralibs="libm_extralibs"
2553
2554 # programs
2555 avconv_deps="avcodec avfilter avformat avresample swscale"
2556 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2557 fps_filter null_filter resample_filter scale_filter
2558 trim_filter"
2559 avconv_suggest="psapi shell32"
2560 avplay_deps="avcodec avfilter avformat avresample sdl"
2561 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2562 avplay_suggest="shell32"
2563 avprobe_deps="avcodec avformat"
2564 avprobe_suggest="shell32"
2565
2566 # documentation
2567 pod2man_deps="doc"
2568 texi2html_deps="doc"
2569
2570 # default parameters
2571
2572 logfile="avbuild/config.log"
2573
2574 # installation paths
2575 prefix_default="/usr/local"
2576 bindir_default='${prefix}/bin'
2577 datadir_default='${prefix}/share/avconv'
2578 docdir_default='${prefix}/share/doc/libav'
2579 incdir_default='${prefix}/include'
2580 libdir_default='${prefix}/lib'
2581 mandir_default='${prefix}/share/man'
2582 shlibdir_default="$libdir_default"
2583
2584 # toolchain
2585 ar_default="ar"
2586 cc_default="gcc"
2587 host_cc_default="gcc"
2588 x86asmexe_default="nasm"
2589 ln_s="ln -s -f"
2590 nm_default="nm -g"
2591 pkg_config_default=pkg-config
2592 ranlib="ranlib"
2593 strip="strip"
2594 version_script='--version-script'
2595 objformat="elf32"
2596
2597 # machine
2598 arch_default=$(uname -m)
2599 cpu="generic"
2600 intrinsics="none"
2601
2602 # OS
2603 target_os_default=$(tolower $(uname -s))
2604 host_os=$target_os_default
2605
2606 # configurable options
2607 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2608
2609 enable asm
2610 enable debug
2611 enable doc
2612 enable faan faandct faanidct
2613 enable optimizations
2614 enable safe_bitstream_reader
2615 enable static
2616 enable swscale_alpha
2617 enable valgrind_backtrace
2618
2619 # By default, enable only those hwaccels that have no external dependencies.
2620 enable d3d11va dxva2 vda vdpau
2621
2622 # internal components are enabled by default
2623 enable $EXTRALIBS_LIST
2624
2625 # Avoid external, non-system, libraries getting enabled by dependency resolution
2626 disable $EXTERNAL_LIBRARY_LIST
2627
2628 # build settings
2629 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2630 LIBPREF="lib"
2631 LIBSUF=".a"
2632 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2633 SLIBPREF="lib"
2634 SLIBSUF=".so"
2635 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2636 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2637 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2638 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2639 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2640 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2641 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2642
2643 asflags_filter=echo
2644 cflags_filter=echo
2645 ldflags_filter=echo
2646
2647 AS_C='-c'
2648 AS_O='-o $@'
2649 CC_C='-c'
2650 CC_E='-E -o $@'
2651 CC_O='-o $@'
2652 OBJCC_C='-c'
2653 OBJCC_E='-E -o $@'
2654 OBJCC_O='-o $@'
2655 X86ASM_O='-o $@'
2656 LD_O='-o $@'
2657 LD_LIB='-l%'
2658 LD_PATH='-L'
2659 HOSTCC_C='-c'
2660 HOSTCC_E='-E -o $@'
2661 HOSTCC_O='-o $@'
2662 HOSTLD_O='-o $@'
2663
2664 host_extralibs='-lm'
2665 host_cflags_filter=echo
2666 host_ldflags_filter=echo
2667
2668 target_path='$(CURDIR)'
2669
2670 # since the object filename is not given with the -MM flag, the compiler
2671 # is only able to print the basename, and we must add the path ourselves
2672 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2673 DEPFLAGS='-MM'
2674
2675 mkdir -p avbuild
2676
2677 # find source path
2678 if test -f configure; then
2679 source_path=.
2680 else
2681 source_path=$(cd $(dirname "$0"); pwd)
2682 echo "$source_path" | grep -q '[[:blank:]]' &&
2683 die "Out of tree builds are impossible with whitespace in source path."
2684 test -e "$source_path/config.h" &&
2685 die "Out of tree builds are impossible with config.h in source dir."
2686 fi
2687
2688 for v in "$@"; do
2689 r=${v#*=}
2690 l=${v%"$r"}
2691 r=$(sh_quote "$r")
2692 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2693 done
2694
2695 find_things(){
2696 thing=$1
2697 pattern=$2
2698 file=$source_path/$3
2699 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2700 }
2701
2702 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2703 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2704 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2705 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2706 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2707 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2708 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2709
2710 find_things_extern(){
2711 thing=$1
2712 pattern=$2
2713 file=$source_path/$3
2714 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2715 }
2716
2717 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2718 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
2719 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2720
2721 AVCODEC_COMPONENTS_LIST="
2722 $BSF_LIST
2723 $DECODER_LIST
2724 $ENCODER_LIST
2725 $HWACCEL_LIST
2726 $PARSER_LIST
2727 "
2728
2729 AVDEVICE_COMPONENTS_LIST="
2730 $INDEV_LIST
2731 "
2732
2733 AVFILTER_COMPONENTS_LIST="
2734 $FILTER_LIST
2735 "
2736
2737 AVFORMAT_COMPONENTS_LIST="
2738 $DEMUXER_LIST
2739 $MUXER_LIST
2740 $PROTOCOL_LIST
2741 "
2742
2743 ALL_COMPONENTS="
2744 $AVCODEC_COMPONENTS_LIST
2745 $AVDEVICE_COMPONENTS_LIST
2746 $AVFILTER_COMPONENTS_LIST
2747 $AVFORMAT_COMPONENTS_LIST
2748 "
2749
2750 for n in $COMPONENT_LIST; do
2751 v=$(toupper ${n%s})_LIST
2752 eval enable \$$v
2753 eval ${n}_if_any="\$$v"
2754 done
2755
2756 enable $ARCH_EXT_LIST
2757
2758 die_unknown(){
2759 echo "Unknown option \"$1\"."
2760 echo "See $0 --help for available options."
2761 exit 1
2762 }
2763
2764 print_3_columns() {
2765 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2766 }
2767
2768 show_list() {
2769 suffix=_$1
2770 shift
2771 echo $* | sed s/$suffix//g | print_3_columns
2772 exit 0
2773 }
2774
2775 for opt do
2776 optval="${opt#*=}"
2777 case "$opt" in
2778 --extra-ldflags=*)
2779 add_ldflags $optval
2780 ;;
2781 --extra-ldexeflags=*)
2782 add_ldexeflags $optval
2783 ;;
2784 --extra-ldsoflags=*)
2785 add_ldsoflags $optval
2786 ;;
2787 --extra-libs=*)
2788 add_extralibs $optval
2789 ;;
2790 --disable-devices)
2791 disable $INDEV_LIST
2792 ;;
2793 --enable-debug=*)
2794 debuglevel="$optval"
2795 ;;
2796 --disable-programs)
2797 disable $PROGRAM_LIST
2798 ;;
2799 --disable-everything)
2800 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2801 ;;
2802 --disable-all)
2803 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2804 disable $LIBRARY_LIST $PROGRAM_LIST doc
2805 ;;
2806 --enable-*=*|--disable-*=*)
2807 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2808 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2809 eval list=\$$(toupper $thing)_LIST
2810 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2811 $action $(filter "$name" $list)
2812 ;;
2813 --enable-yasm|--disable-yasm)
2814 warn "The ${opt} option is only provided for compatibility and will be\n"\
2815 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2816 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2817 ;;
2818 --enable-?*|--disable-?*)
2819 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2820 if is_in $option $COMPONENT_LIST; then
2821 test $action = disable && action=unset
2822 eval $action \$$(toupper ${option%s})_LIST
2823 elif is_in $option $CMDLINE_SELECT; then
2824 $action $option
2825 else
2826 die_unknown $opt
2827 fi
2828 ;;
2829 --list-*)
2830 NAME="${opt#--list-}"
2831 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2832 NAME=${NAME%s}
2833 eval show_list $NAME \$$(toupper $NAME)_LIST
2834 ;;
2835 --help|-h) show_help
2836 ;;
2837 --quiet|-q) quiet=yes
2838 ;;
2839 *)
2840 optname="${opt%%=*}"
2841 optname="${optname#--}"
2842 optname=$(echo "$optname" | sed 's/-/_/g')
2843 if is_in $optname $CMDLINE_SET; then
2844 eval $optname='$optval'
2845 elif is_in $optname $CMDLINE_APPEND; then
2846 append $optname "$optval"
2847 else
2848 die_unknown $opt
2849 fi
2850 ;;
2851 esac
2852 done
2853
2854 for e in $env; do
2855 eval "export $e"
2856 done
2857
2858 disabled logging && logfile=/dev/null
2859
2860 # command line configuration sanity checks
2861
2862 # we need to build at least one lib type
2863 if ! enabled_any static shared; then
2864 cat <<EOF
2865 At least one library type must be built.
2866 Specify --enable-static to build the static libraries or --enable-shared to
2867 build the shared libraries as well. To only build the shared libraries specify
2868 --disable-static in addition to --enable-shared.
2869 EOF
2870 exit 1
2871 fi
2872
2873 # Die early if licensing-related configure options are incompatible.
2874 die_license_disabled() {
2875 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2876 }
2877
2878 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2879 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2880 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2881
2882 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2883
2884 enabled_all gnutls openssl &&
2885 die "GnuTLS and OpenSSL must not be enabled at the same time."
2886
2887 # Disable all the library-specific components if the library itself
2888 # is disabled, see AVCODEC_LIST and following _LIST variables.
2889
2890 disable_components(){
2891 disabled ${1} && disable $(
2892 eval components="\$$(toupper ${1})_COMPONENTS"
2893 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2894 )
2895 }
2896
2897 map 'disable_components $v' $LIBRARY_LIST
2898
2899 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2900 set >> $logfile
2901
2902 case "$toolchain" in
2903 *-asan)
2904 cc_default="${toolchain%-asan}"
2905 add_cflags -fsanitize=address
2906 add_ldflags -fsanitize=address
2907 ;;
2908 *-msan)
2909 cc_default="${toolchain%-msan}"
2910 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2911 add_ldflags -fsanitize=memory
2912 ;;
2913 *-tsan)
2914 cc_default="${toolchain%-tsan}"
2915 add_cflags -fsanitize=thread -fPIE
2916 add_ldflags -fsanitize=thread -pie
2917 case "$toolchain" in
2918 gcc-tsan)
2919 add_cflags -fPIC
2920 add_ldflags -fPIC
2921 ;;
2922 esac
2923 ;;
2924 *-usan)
2925 cc_default="${toolchain%-usan}"
2926 add_cflags -fsanitize=undefined
2927 add_ldflags -fsanitize=undefined
2928 case "$toolchain" in
2929 clang-usan)
2930 add_cflags -O1
2931 ;;
2932 esac
2933 ;;
2934 valgrind-*)
2935 target_exec_default="valgrind"
2936 case "$toolchain" in
2937 valgrind-massif)
2938 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2939 ;;
2940 valgrind-memcheck)
2941 target_exec_args="--track-origins=yes --leak-check=full"
2942 ;;
2943 esac
2944 ;;
2945 msvc)
2946 # Check whether the current MSVC version needs the C99 converter.
2947 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2948 # support enough of C99 to build libav. Default to the new
2949 # behaviour if the regexp was unable to match anything, since this
2950 # successfully parses the version number of existing supported
2951 # versions that require the converter (MSVC 2010 and 2012).
2952 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2953 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2954 cc_default="cl"
2955 else
2956 cc_default="c99wrap cl"
2957 fi
2958 ld_default="$source_path/compat/windows/mslink"
2959 nm_default="dumpbin -symbols"
2960 ar_default="lib"
2961 case "$arch" in
2962 aarch64|arm64)
2963 as_default="armasm64"
2964 ;;
2965 arm*)
2966 as_default="armasm"
2967 ;;
2968 esac
2969 target_os_default="win32"
2970 # Use a relative path for TMPDIR. This makes sure all the
2971 # ffconf temp files are written with a relative path, avoiding
2972 # issues with msys/win32 path conversion for MSVC parameters
2973 # such as -Fo<file> or -out:<file>.
2974 TMPDIR=.
2975 ;;
2976 icl)
2977 cc_default="icl"
2978 ld_default="xilink"
2979 nm_default="dumpbin -symbols"
2980 ar_default="xilib"
2981 target_os_default="win32"
2982 TMPDIR=.
2983 ;;
2984 gcov)
2985 add_cflags -fprofile-arcs -ftest-coverage
2986 add_ldflags -fprofile-arcs -ftest-coverage
2987 ;;
2988 llvm-cov)
2989 add_cflags -fprofile-arcs -ftest-coverage
2990 add_ldflags --coverage
2991 ;;
2992 hardened)
2993 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2994 add_cflags -fno-strict-overflow -fstack-protector-all
2995 add_ldflags -Wl,-z,relro -Wl,-z,now
2996 ;;
2997 ?*)
2998 die "Unknown toolchain $toolchain"
2999 ;;
3000 esac
3001
3002 if test -n "$cross_prefix"; then
3003 test -n "$arch" && test -n "$target_os" ||
3004 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3005 enable cross_compile
3006 fi
3007
3008 ar_default="${cross_prefix}${ar_default}"
3009 cc_default="${cross_prefix}${cc_default}"
3010 objcc_default="${cross_prefix}${objcc_default}"
3011 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3012 nm_default="${cross_prefix}${nm_default}"
3013 pkg_config_default="${cross_prefix}${pkg_config_default}"
3014 ranlib="${cross_prefix}${ranlib}"
3015 strip="${cross_prefix}${strip}"
3016
3017 sysinclude_default="${sysroot}/usr/include"
3018
3019 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3020 enabled cross_compile || host_cc_default=$cc
3021 set_default host_cc
3022
3023 if ! $pkg_config --version >/dev/null 2>&1; then
3024 warn "$pkg_config not found, library detection may fail."
3025 pkg_config=false
3026 fi
3027
3028 exesuf() {
3029 case $1 in
3030 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3031 esac
3032 }
3033
3034 EXESUF=$(exesuf $target_os)
3035 HOSTEXESUF=$(exesuf $host_os)
3036
3037 # set temporary file name
3038 : ${TMPDIR:=$TEMPDIR}
3039 : ${TMPDIR:=$TMP}
3040 : ${TMPDIR:=/tmp}
3041
3042 if ! check_cmd mktemp -u XXXXXX; then
3043 # simple replacement for missing mktemp
3044 # NOT SAFE FOR GENERAL USE
3045 mktemp(){
3046 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3047 echo "$tmpname"
3048 mkdir "$tmpname"
3049 }
3050 fi
3051
3052 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3053 die "Unable to create temporary directory in $TMPDIR."
3054
3055 tmpfile(){
3056 tmp="${AVTMPDIR}/test"$2
3057 (set -C; exec > $tmp) 2> /dev/null ||
3058 die "Unable to create temporary file in $AVTMPDIR."
3059 eval $1=$tmp
3060 }
3061
3062 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3063 trap 'exit 2' INT
3064
3065 tmpfile TMPASM .asm
3066 tmpfile TMPC .c
3067 tmpfile TMPE $EXESUF
3068 tmpfile TMPH .h
3069 tmpfile TMPO .o
3070 tmpfile TMPS .S
3071 tmpfile TMPSH .sh
3072 tmpfile TMPV .ver
3073
3074 unset -f mktemp
3075
3076 chmod +x $TMPE
3077
3078 # make sure we can execute files in $TMPDIR
3079 cat > $TMPSH 2>> $logfile <<EOF
3080 #! /bin/sh
3081 EOF
3082 chmod +x $TMPSH >> $logfile 2>&1
3083 if ! $TMPSH >> $logfile 2>&1; then
3084 cat <<EOF
3085 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3086 variable to another directory and make sure that it is not mounted noexec.
3087 EOF
3088 die "Sanity test failed."
3089 fi
3090
3091 armasm_flags(){
3092 for flag; do
3093 case $flag in
3094 # Filter out MSVC cl.exe options from cflags that shouldn't
3095 # be passed to gas-preprocessor
3096 -M[TD]*) ;;
3097 *) echo $flag ;;
3098 esac
3099 done
3100 }
3101
3102 cparser_flags(){
3103 for flag; do
3104 case $flag in
3105 -Wno-switch) echo -Wno-switch-enum ;;
3106 -Wno-format-zero-length) ;;
3107 -Wdisabled-optimization) ;;
3108 -Wno-pointer-sign) echo -Wno-other ;;
3109 *) echo $flag ;;
3110 esac
3111 done
3112 }
3113
3114 msvc_common_flags(){
3115 for flag; do
3116 case $flag in
3117 # In addition to specifying certain flags under the compiler
3118 # specific filters, they must be specified here as well or else the
3119 # generic catch all at the bottom will print the original flag.
3120 -Wall) ;;
3121 -Wextra) ;;
3122 -std=c99) ;;
3123 # Common flags
3124 -fomit-frame-pointer) ;;
3125 -g) echo -Z7 ;;
3126 -fno-math-errno) ;;
3127 -fno-common) ;;
3128 -fno-signed-zeros) ;;
3129 -fPIC) ;;
3130 -mthumb) ;;
3131 -march=*) ;;
3132 -lz) echo zlib.lib ;;
3133 -lx264) echo libx264.lib ;;
3134 -l*) echo ${flag#-l}.lib ;;
3135 -L*) echo -libpath:${flag#-L} ;;
3136 *) echo $flag ;;
3137 esac
3138 done
3139 }
3140
3141 msvc_flags(){
3142 msvc_common_flags "$@"
3143 for flag; do
3144 case $flag in
3145 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3146 -wd4554 ;;
3147 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3148 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3149 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3150 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3151 esac
3152 done
3153 }
3154
3155 icl_flags(){
3156 msvc_common_flags "$@"
3157 for flag; do
3158 case $flag in
3159 # Despite what Intel's documentation says -Wall, which is supported
3160 # on Windows, does enable remarks so disable them here.
3161 -Wall) echo $flag -Qdiag-disable:remark ;;
3162 -std=c99) echo -Qstd=c99 ;;
3163 esac
3164 done
3165 }
3166
3167 suncc_flags(){
3168 for flag; do
3169 case $flag in
3170 -march=*|-mcpu=*)
3171 case "${flag#*=}" in
3172 native) echo -xtarget=native ;;
3173 v9|niagara) echo -xarch=sparc ;;
3174 ultrasparc) echo -xarch=sparcvis ;;
3175 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3176 i586|pentium) echo -xchip=pentium ;;
3177 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3178 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3179 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3180 pentium4*) echo -xtarget=pentium4 ;;
3181 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3182 *-sse3) echo -xarch=sse3 ;;
3183 core2) echo -xarch=ssse3 -xchip=core2 ;;
3184 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3185 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3186 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3187 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3188 k8|opteron|athlon64|athlon-fx)
3189 echo -xarch=sse2a ;;
3190 athlon*) echo -xarch=pentium_proa ;;
3191 esac
3192 ;;
3193 -std=c99) echo -xc99 ;;
3194 -fomit-frame-pointer) echo -xregs=frameptr ;;
3195 -fPIC) echo -KPIC -xcode=pic32 ;;
3196 -W*,*) echo $flag ;;
3197 -f*-*|-W*|-mimpure-text) ;;
3198 -shared) echo -G ;;
3199 *) echo $flag ;;
3200 esac
3201 done
3202 }
3203
3204 probe_cc(){
3205 pfx=$1
3206 _cc=$2
3207
3208 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3209 unset _ld_o _ldflags _ld_lib _ld_path
3210 unset _depflags _DEPCMD _DEPFLAGS
3211 _flags_filter=echo
3212
3213 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3214 _type=llvm_gcc
3215 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3216 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3217 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3218 _cflags_speed='-O3'
3219 _cflags_size='-Os'
3220 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3221 _type=gcc
3222 gcc_version=$($_cc --version | head -n1)
3223 gcc_basever=$($_cc -dumpversion)
3224 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3225 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3226 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3227 if ! $_cc -dumpversion | grep -q '^2\.'; then
3228 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3229 fi
3230 _cflags_speed='-O3'
3231 _cflags_size='-Os'
3232 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3233 _type=icc
3234 _ident=$($_cc --version | head -n1)
3235 _depflags='-MMD'
3236 _cflags_speed='-O3'
3237 _cflags_size='-Os'
3238 _cflags_noopt='-O1'
3239 elif $_cc -v 2>&1 | grep -q xlc; then
3240 _type=xlc
3241 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3242 _cflags_speed='-O5'
3243 _cflags_size='-O5 -qcompact'
3244 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3245 test -d "$sysroot" || die "No valid sysroot specified."
3246 _type=armcc
3247 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3248 armcc_conf="$PWD/armcc.conf"
3249 $_cc --arm_linux_configure \
3250 --arm_linux_config_file="$armcc_conf" \
3251 --configure_sysroot="$sysroot" \
3252 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3253 die "Error creating armcc configuration file."
3254 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3255 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3256 as_default="${cross_prefix}gcc"
3257 _depflags='-MMD'
3258 _cflags_speed='-O3'
3259 _cflags_size='-Os'
3260 elif $_cc -v 2>&1 | grep -q clang; then
3261 _type=clang
3262 _ident=$($_cc --version 2>/dev/null | head -n1)
3263 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3264 _cflags_speed='-O3'
3265 _cflags_size='-Os'
3266 elif $_cc -V 2>&1 | grep -q Sun; then
3267 _type=suncc
3268 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3269 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3270 _DEPFLAGS='-xM1 -xc99'
3271 _ldflags='-std=c99'
3272 _cflags_speed='-O5'
3273 _cflags_size='-O5 -xspace'
3274 _flags_filter=suncc_flags
3275 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3276 _type=pathscale
3277 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3278 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3279 _cflags_speed='-O2'
3280 _cflags_size='-Os'
3281 _flags_filter='filter_out -Wdisabled-optimization'
3282 elif $_cc -v 2>&1 | grep -q Open64; then
3283 _type=open64
3284 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3285 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3286 _cflags_speed='-O2'
3287 _cflags_size='-Os'
3288 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3289 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3290 _type=armasm
3291 _ident=$($_cc | head -n1)
3292 # 4509: "This form of conditional instruction is deprecated"
3293 _flags="-nologo -ignore 4509"
3294 _flags_filter=armasm_flags
3295 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3296 _type=msvc
3297 _ident=$($_cc 2>&1 | head -n1)
3298 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3299 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3300 _cflags_speed="-O2"
3301 _cflags_size="-O1"
3302 _cflags_noopt="-O1"
3303 if $_cc -nologo- 2>&1 | grep -q Linker; then
3304 _ld_o='-out:$@'
3305 else
3306 _ld_o='-Fe$@'
3307 fi
3308 _cc_o='-Fo$@'
3309 _cc_e='-P -Fi$@'
3310 _flags_filter=msvc_flags
3311 _ld_lib='lib%.a'
3312 _ld_path='-libpath:'
3313 _flags='-nologo'
3314 elif $_cc 2>&1 | grep -q Intel; then
3315 _type=icl
3316 _ident=$($_cc 2>&1 | head -n1)
3317 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3318 # Not only is O3 broken on 13.x+ but it is slower on all previous
3319 # versions (tested) as well.
3320 _cflags_speed="-O2"
3321 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3322 if $_cc 2>&1 | grep -q Linker; then
3323 _ld_o='-out:$@'
3324 else
3325 _ld_o='-Fe$@'
3326 fi
3327 _cc_o='-Fo$@'
3328 _cc_e='-P'
3329 _flags_filter=icl_flags
3330 _ld_lib='lib%.a'
3331 _ld_path='-libpath:'
3332 # -Qdiag-error to make icl error when seeing certain unknown arguments
3333 _flags='-nologo -Qdiag-error:4044,10157'
3334 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3335 # with MSVC which enables it by default.
3336 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3337 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3338 # lld can emulate multiple different linkers; in ms link.exe mode,
3339 # the -? parameter gives the help output which contains an identifyable
3340 # string, while it gives an error in other modes.
3341 _type=lld-link
3342 # The link.exe mode doesn't have a switch for getting the version,
3343 # but we can force it back to gnu mode and get the version from there.
3344 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3345 _ld_o='-out:$@'
3346 _flags_filter=msvc_flags
3347 _ld_lib='lib%.a'
3348 _ld_path='-libpath:'
3349 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3350 _type=cparser
3351 _ident=$($_cc --version | head -n1)
3352 _depflags='-MMD'
3353 _cflags_speed='-O4'
3354 _cflags_size='-O2'
3355 _flags_filter=cparser_flags
3356 fi
3357
3358 eval ${pfx}_type=\$_type
3359 eval ${pfx}_ident=\$_ident
3360 }
3361
3362 set_ccvars(){
3363 eval ${1}_C=\${_cc_c-\${${1}_C}}
3364 eval ${1}_E=\${_cc_e-\${${1}_E}}
3365 eval ${1}_O=\${_cc_o-\${${1}_O}}
3366
3367 if [ -n "$_depflags" ]; then
3368 eval ${1}_DEPFLAGS=\$_depflags
3369 else
3370 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3371 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3372 eval DEP${1}FLAGS=\$_flags
3373 fi
3374 }
3375
3376 probe_cc cc "$cc"
3377 cflags_filter=$_flags_filter
3378 cflags_speed=$_cflags_speed
3379 cflags_size=$_cflags_size
3380 cflags_noopt=$_cflags_noopt
3381 add_cflags $_flags $_cflags
3382 cc_ldflags=$_ldflags
3383 set_ccvars CC
3384
3385 probe_cc hostcc "$host_cc"
3386 host_cflags_filter=$_flags_filter
3387 host_cflags_speed=$_cflags_speed
3388 add_host_cflags $_flags $_cflags
3389 set_ccvars HOSTCC
3390
3391 test -n "$cc_type" && enable $cc_type ||
3392 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3393
3394 : ${as_default:=$cc}
3395 : ${objcc_default:=$cc}
3396 : ${dep_cc_default:=$cc}
3397 : ${ld_default:=$cc}
3398 : ${host_ld_default:=$host_cc}
3399 set_default ar as objcc dep_cc ld host_ld
3400
3401 probe_cc as "$as"
3402 asflags_filter=$_flags_filter
3403 add_asflags $_flags $_cflags
3404 set_ccvars AS
3405
3406 probe_cc objcc "$objcc"
3407 objcflags_filter=$_flags_filter
3408 add_objcflags $_flags $_cflags
3409 set_ccvars OBJC
3410
3411 probe_cc ld "$ld"
3412 ldflags_filter=$_flags_filter
3413 add_ldflags $_flags $_ldflags
3414 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3415 LD_O=${_ld_o-$LD_O}
3416 LD_LIB=${_ld_lib-$LD_LIB}
3417 LD_PATH=${_ld_path-$LD_PATH}
3418
3419 probe_cc hostld "$host_ld"
3420 host_ldflags_filter=$_flags_filter
3421 add_host_ldflags $_flags $_ldflags
3422 HOSTLD_O=${_ld_o-$HOSTLD_O}
3423
3424 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3425 probe_cc depcc "$dep_cc"
3426 CCDEP=${_DEPCMD:-$DEPCMD}
3427 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3428 DEPCCFLAGS=$_flags
3429 fi
3430
3431 if $ar 2>&1 | grep -q Microsoft; then
3432 arflags="-nologo"
3433 ar_o='-out:$@'
3434 else
3435 arflags="rc"
3436 ar_o='$@'
3437 fi
3438
3439 add_cflags $extra_cflags
3440 add_objcflags $extra_objcflags
3441 add_asflags $extra_cflags
3442
3443 if test -n "$sysroot"; then
3444 case "$cc_type" in
3445 gcc|llvm_gcc|clang)
3446 add_cppflags --sysroot="$sysroot"
3447 add_ldflags --sysroot="$sysroot"
3448 ;;
3449 esac
3450 fi
3451
3452 if test "$cpu" = host; then
3453 enabled cross_compile &&
3454 die "--cpu=host makes no sense when cross-compiling."
3455
3456 case "$cc_type" in
3457 gcc|llvm_gcc)
3458 check_native(){
3459 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3460 sed -n "/cc1.*$1=/{
3461 s/.*$1=\\([^ ]*\\).*/\\1/
3462 p
3463 q
3464 }" $TMPE
3465 }
3466 cpu=$(check_native -march || check_native -mcpu)
3467 ;;
3468 esac
3469
3470 test "${cpu:-host}" = host &&
3471 die "--cpu=host not supported with compiler $cc"
3472 fi
3473
3474 # Deal with common $arch aliases
3475 case "$arch" in
3476 aarch64|arm64)
3477 arch="aarch64"
3478 ;;
3479 arm*)
3480 arch="arm"
3481 ;;
3482 mips*|IP*)
3483 case "$arch" in
3484 *el)
3485 add_cppflags -EL
3486 add_ldflags -EL
3487 ;;
3488 *eb)
3489 add_cppflags -EB
3490 add_ldflags -EB
3491 ;;
3492 esac
3493 arch="mips"
3494 ;;
3495 parisc*|hppa*)
3496 arch="parisc"
3497 ;;
3498 "Power Macintosh"|ppc*|powerpc*)
3499 arch="ppc"
3500 ;;
3501 s390|s390x)
3502 arch="s390"
3503 ;;
3504 sh4|sh)
3505 arch="sh4"
3506 ;;
3507 sun4u|sparc*)
3508 arch="sparc"
3509 ;;
3510 tilegx|tile-gx)
3511 arch="tilegx"
3512 ;;
3513 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3514 arch="x86"
3515 ;;
3516 esac
3517
3518 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3519 enable $arch
3520
3521 # Add processor-specific flags
3522 if enabled aarch64; then
3523
3524 case $cpu in
3525 armv*)
3526 cpuflags="-march=$cpu"
3527 ;;
3528 *)
3529 cpuflags="-mcpu=$cpu"
3530 ;;
3531 esac
3532
3533 elif enabled alpha; then
3534
3535 cpuflags="-mcpu=$cpu"
3536
3537 elif enabled arm; then
3538
3539 check_arm_arch() {
3540 check_cpp_condition stddef.h \
3541 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3542 $cpuflags
3543 }
3544
3545 probe_arm_arch() {
3546 if check_arm_arch 4; then echo armv4
3547 elif check_arm_arch 4T; then echo armv4t
3548 elif check_arm_arch 5; then echo armv5
3549 elif check_arm_arch 5E; then echo armv5e
3550 elif check_arm_arch 5T; then echo armv5t
3551 elif check_arm_arch 5TE; then echo armv5te
3552 elif check_arm_arch 5TEJ; then echo armv5te
3553 elif check_arm_arch 6; then echo armv6
3554 elif check_arm_arch 6J; then echo armv6j
3555 elif check_arm_arch 6K; then echo armv6k
3556 elif check_arm_arch 6Z; then echo armv6z
3557 elif check_arm_arch 6ZK; then echo armv6zk
3558 elif check_arm_arch 6T2; then echo armv6t2
3559 elif check_arm_arch 7; then echo armv7
3560 elif check_arm_arch 7A 7_A; then echo armv7-a
3561 elif check_arm_arch 7S; then echo armv7-a
3562 elif check_arm_arch 7R 7_R; then echo armv7-r
3563 elif check_arm_arch 7M 7_M; then echo armv7-m
3564 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3565 elif check_arm_arch 8A 8_A; then echo armv8-a
3566 fi
3567 }
3568
3569 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3570
3571 case $cpu in
3572 armv*)
3573 cpuflags="-march=$cpu"
3574 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3575 ;;
3576 *)
3577 cpuflags="-mcpu=$cpu"
3578 case $cpu in
3579 cortex-a*) subarch=armv7a ;;
3580 cortex-r*) subarch=armv7r ;;
3581 cortex-m*) enable thumb; subarch=armv7m ;;
3582 arm11*) subarch=armv6 ;;
3583 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3584 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3585 *) subarch=$(probe_arm_arch) ;;
3586 esac
3587 ;;
3588 esac
3589
3590 case "$subarch" in
3591 armv5t*) enable fast_clz ;;
3592 armv[6-8]*) enable fast_clz fast_unaligned ;;
3593 esac
3594
3595 elif enabled avr32; then
3596
3597 case $cpu in
3598 ap7[02]0[0-2])
3599 subarch="avr32_ap"
3600 cpuflags="-mpart=$cpu"
3601 ;;
3602 ap)
3603 subarch="avr32_ap"
3604 cpuflags="-march=$cpu"
3605 ;;
3606 uc3[ab]*)
3607 subarch="avr32_uc"
3608 cpuflags="-mcpu=$cpu"
3609 ;;
3610 uc)
3611 subarch="avr32_uc"
3612 cpuflags="-march=$cpu"
3613 ;;
3614 esac
3615
3616 elif enabled bfin; then
3617
3618 cpuflags="-mcpu=$cpu"
3619
3620 elif enabled mips; then
3621
3622 cpuflags="-march=$cpu"
3623
3624 elif enabled ppc; then
3625
3626 disable ldbrx
3627
3628 case $(tolower $cpu) in
3629 601|ppc601|powerpc601)
3630 cpuflags="-mcpu=601"
3631 disable altivec
3632 ;;
3633 603*|ppc603*|powerpc603*)
3634 cpuflags="-mcpu=603"
3635 disable altivec
3636 ;;
3637 604*|ppc604*|powerpc604*)
3638 cpuflags="-mcpu=604"
3639 disable altivec
3640 ;;
3641 g3|75*|ppc75*|powerpc75*)
3642 cpuflags="-mcpu=750"
3643 disable altivec
3644 ;;
3645 g4|745*|ppc745*|powerpc745*)
3646 cpuflags="-mcpu=7450"
3647 disable vsx
3648 ;;
3649 74*|ppc74*|powerpc74*)
3650 cpuflags="-mcpu=7400"
3651 disable vsx
3652 ;;
3653 g5|970|ppc970|powerpc970)
3654 cpuflags="-mcpu=970"
3655 disable vsx
3656 ;;
3657 power[3-6]*)
3658 cpuflags="-mcpu=$cpu"
3659 disable vsx
3660 ;;
3661 power[7-8]*)
3662 cpuflags="-mcpu=$cpu"
3663 enable ldbrx
3664 ;;
3665 cell)
3666 cpuflags="-mcpu=cell"
3667 enable ldbrx
3668 disable vsx
3669 ;;
3670 e500mc)
3671 cpuflags="-mcpu=e500mc"
3672 disable altivec
3673 ;;
3674 e500v2)
3675 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3676 disable altivec
3677 disable dcbzl
3678 ;;
3679 e500)
3680 cpuflags="-mcpu=8540 -mhard-float"
3681 disable altivec
3682 disable dcbzl
3683 ;;
3684 esac
3685
3686 elif enabled sparc; then
3687
3688 case $cpu in
3689 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3690 cpuflags="-mcpu=$cpu"
3691 ;;
3692 ultrasparc*|niagara[234])
3693 cpuflags="-mcpu=$cpu"
3694 ;;
3695 esac
3696
3697 elif enabled x86; then
3698
3699 case $cpu in
3700 i[345]86|pentium)
3701 cpuflags="-march=$cpu"
3702 disable i686
3703 disable mmx
3704 ;;
3705 # targets that do NOT support nopl and conditional mov (cmov)
3706 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3707 cpuflags="-march=$cpu"
3708 disable i686
3709 ;;
3710 # targets that do support nopl and conditional mov (cmov)
3711 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3712 cpuflags="-march=$cpu"
3713 enable i686
3714 enable fast_cmov
3715 ;;
3716 # targets that do support conditional mov but on which it's slow
3717 pentium4|pentium4m|prescott|nocona)
3718 cpuflags="-march=$cpu"
3719 enable i686
3720 disable fast_cmov
3721 ;;
3722 esac
3723
3724 fi
3725
3726 if [ "$cpu" != generic ]; then
3727 add_cflags $cpuflags
3728 add_asflags $cpuflags
3729 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3730 fi
3731
3732 # compiler sanity check
3733 check_exec <<EOF
3734 int main(void){ return 0; }
3735 EOF
3736 if test "$?" != 0; then
3737 echo "$cc is unable to create an executable file."
3738 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3739 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3740 echo "Only do this if you know what cross compiling means."
3741 fi
3742 die "C compiler test failed."
3743 fi
3744
3745 add_cppflags -D_ISOC99_SOURCE
3746
3747 # some compilers silently accept -std=c11, so we also need to check that the
3748 # version macro is defined properly
3749 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3750 add_cflags -std=c11 ||
3751 check_cflags -std=c99
3752
3753 check_cppflags -D_FILE_OFFSET_BITS=64
3754 check_cppflags -D_LARGEFILE_SOURCE
3755
3756 add_host_cppflags -D_ISOC99_SOURCE
3757 check_host_cflags -std=c99
3758 check_host_cflags -Wall
3759 check_host_cflags $host_cflags_speed
3760
3761 check_64bit(){
3762 arch32=$1
3763 arch64=$2
3764 expr=$3
3765 check_code cc "" "int test[2*($expr) - 1]" &&
3766 subarch=$arch64 || subarch=$arch32
3767 enable $subarch
3768 }
3769
3770 case "$arch" in
3771 aarch64|alpha|ia64)
3772 enabled shared && enable_weak pic
3773 ;;
3774 mips)
3775 check_64bit mips mips64 '_MIPS_SIM > 1'
3776 enabled shared && enable_weak pic
3777 ;;
3778 parisc)
3779 check_64bit parisc parisc64 'sizeof(void *) > 4'
3780 enabled shared && enable_weak pic
3781 ;;
3782 ppc)
3783 check_64bit ppc ppc64 'sizeof(void *) > 4'
3784 enabled shared && enable_weak pic
3785 ;;
3786 s390)
3787 check_64bit s390 s390x 'sizeof(void *) > 4'
3788 enabled shared && enable_weak pic
3789 ;;
3790 sparc)
3791 check_64bit sparc sparc64 'sizeof(void *) > 4'
3792 enabled shared && enable_weak pic
3793 ;;
3794 x86)
3795 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3796 if enabled x86_64; then
3797 enabled shared && enable_weak pic
3798 objformat=elf64
3799 fi
3800 ;;
3801 esac
3802
3803 # OS specific
3804 case $target_os in
3805 aix)
3806 SHFLAGS=-shared
3807 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3808 enabled shared && add_ldflags -Wl,-brtl
3809 arflags='-Xany -r -c'
3810 ;;
3811 android)
3812 disable symver
3813 enable section_data_rel_ro
3814 SLIB_INSTALL_NAME='$(SLIBNAME)'
3815 SLIB_INSTALL_LINKS=
3816 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3817 ;;
3818 haiku)
3819 prefix_default="/boot/common"
3820 network_extralibs="-lnetwork"
3821 host_extralibs=
3822 ;;
3823 sunos)
3824 SHFLAGS='-shared -Wl,-h,$$(@F)'
3825 enabled x86 && append SHFLAGS -mimpure-text
3826 network_extralibs="-lsocket -lnsl"
3827 # When using suncc to build, the Solaris linker will mark
3828 # an executable with each instruction set encountered by
3829 # the Solaris assembler. As our libraries contain their own
3830 # guards for processor-specific code, instead suppress
3831 # generation of the HWCAPS ELF section on Solaris x86 only.
3832 enabled_all suncc x86 &&
3833 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3834 add_ldflags -Wl,-M,mapfile
3835 nm_default='nm -P -g'
3836 version_script='-M'
3837 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3838 ;;
3839 netbsd)
3840 disable symver
3841 oss_indev_extralibs="-lossaudio"
3842 ;;
3843 openbsd|bitrig)
3844 disable symver
3845 SHFLAGS='-shared'
3846 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3847 SLIB_INSTALL_LINKS=
3848 oss_indev_extralibs="-lossaudio"
3849 ;;
3850 dragonfly)
3851 disable symver
3852 ;;
3853 freebsd)
3854 ;;
3855 bsd/os)
3856 add_extralibs -lpoll -lgnugetopt
3857 ;;
3858 darwin)
3859 enabled ppc && add_asflags -force_cpusubtype_ALL
3860 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3861 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3862 add_ldflags -Wl,-dynamic,-search_paths_first
3863 check_cflags -Werror=partial-availability
3864 SLIBSUF=".dylib"
3865 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3866 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3867 enabled x86_64 && objformat="macho64" || objformat="macho32"
3868 enabled_any pic shared ||
3869 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3870 check_header dispatch/dispatch.h &&
3871 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3872 if test -n "$sysroot"; then
3873 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3874 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3875 fi
3876 ;;
3877 msys*)
3878 die "Native MSYS builds are discouraged, please use the MINGW environment."
3879 ;;
3880 mingw32*|mingw64*)
3881 target_os=mingw32
3882 if enabled shared; then
3883 # Cannot build both shared and static libs when using dllimport.
3884 disable static
3885 fi
3886 check_ldflags -Wl,--nxcompat
3887 check_ldflags -Wl,--dynamicbase
3888 shlibdir_default="$bindir_default"
3889 SLIBPREF=""
3890 SLIBSUF=".dll"
3891 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3892 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3893 SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3894 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3895 SLIB_INSTALL_LINKS=
3896 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3897 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3898 SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3899 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3900 enabled x86_64 && objformat="win64" || objformat="win32"
3901 ranlib=:
3902 enable dos_paths
3903 ;;
3904 win32|win64)
3905 disable symver
3906 if enabled shared; then
3907 # Link to the import library instead of the normal static library
3908 # for shared libs.
3909 LD_LIB='%.lib'
3910 # Cannot build both shared and static libs with MSVC or icl.
3911 disable static
3912 fi
3913 shlibdir_default="$bindir_default"
3914 SLIBPREF=""
3915 SLIBSUF=".dll"
3916 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3917 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3918 SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3919 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3920 SLIB_INSTALL_LINKS=
3921 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3922 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3923 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3924 enabled x86_64 && objformat="win64" || objformat="win32"
3925 ranlib=:
3926 enable dos_paths
3927 ;;
3928 cygwin*)
3929 target_os=cygwin
3930 shlibdir_default="$bindir_default"
3931 SLIBPREF="cyg"
3932 SLIBSUF=".dll"
3933 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3934 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3935 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3936 SLIB_INSTALL_LINKS=
3937 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3938 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3939 enabled x86_64 && objformat="win64" || objformat="win32"
3940 enable dos_paths
3941 ;;
3942 *-dos|freedos|opendos)
3943 network_extralibs="-lsocket"
3944 objformat="coff"
3945 enable dos_paths
3946 add_cppflags -U__STRICT_ANSI__
3947 ;;
3948 linux)
3949 enable section_data_rel_ro
3950 ;;
3951 irix*)
3952 target_os=irix
3953 ranlib="echo ignoring ranlib"
3954 ;;
3955 os/2*)
3956 ln_s="cp -f"
3957 objformat="aout"
3958 add_cppflags -D_GNU_SOURCE
3959 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3960 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3961 LIBSUF="_s.a"
3962 SLIBPREF=""
3963 SLIBSUF=".dll"
3964 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3965 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3966 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3967 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3968 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3969 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3970 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3971 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3972 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3973 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3974 enable dos_paths
3975 ;;
3976 gnu/kfreebsd)
3977 add_cppflags -D_BSD_SOURCE
3978 ;;
3979 gnu)
3980 ;;
3981 qnx)
3982 add_cppflags -D_QNX_SOURCE
3983 network_extralibs="-lsocket"
3984 ;;
3985 symbian)
3986 SLIBSUF=".dll"
3987 enable dos_paths
3988 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3989 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3990 add_ldflags -Wl,--target1-abs,--no-undefined \
3991 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3992 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3993 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3994 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3995 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3996 ;;
3997 minix)
3998 ;;
3999 none)
4000 ;;
4001 *)
4002 die "Unknown OS '$target_os'."
4003 ;;
4004 esac
4005
4006 # determine libc flavour
4007
4008 probe_libc(){
4009 pfx=$1
4010 pfx_no_=${pfx%_}
4011 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4012 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4013 eval ${pfx}libc_type=uclibc
4014 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4015 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4016 eval ${pfx}libc_type=glibc
4017 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4018 # MinGW headers can be installed on Cygwin, so check for newlib first.
4019 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4020 eval ${pfx}libc_type=newlib
4021 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4022 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4023 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4024 eval ${pfx}libc_type=mingw64
4025 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4026 eval test \$${pfx_no_}cc_type = "gcc" &&
4027 add_${pfx}cppflags -D__printf__=__gnu_printf__
4028 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4029 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4030 eval ${pfx}libc_type=mingw32
4031 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4032 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4033 die "ERROR: MinGW32 runtime version must be >= 3.15."
4034 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4035 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4036 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4037 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4038 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4039 eval test \$${pfx_no_}cc_type = "gcc" &&
4040 add_${pfx}cppflags -D__printf__=__gnu_printf__
4041 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4042 eval ${pfx}libc_type=msvcrt
4043 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4044 if [ "$pfx" = host_ ]; then
4045 add_host_cppflags -Dsnprintf=_snprintf
4046 else
4047 add_compat strtod.o strtod=avpriv_strtod
4048 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4049 _snprintf=avpriv_snprintf \
4050 vsnprintf=avpriv_vsnprintf
4051 fi
4052 fi
4053 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4054 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4055 # 0x601 by default unless something else is set by the user.
4056 # This can easily lead to us detecting functions only present
4057 # in such new versions and producing binaries requiring windows 7.0.
4058 # Therefore explicitly set the default to XP unless the user has
4059 # set something else on the command line.
4060 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4061 # family. For these cases, configure is free to use any functions
4062 # found in the SDK headers by default. (Alternatively, we could force
4063 # _WIN32_WINNT to 0x0602 in that case.)
4064 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4065 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4066 #ifdef WINAPI_FAMILY
4067 #include <winapifamily.h>
4068 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4069 #error not desktop
4070 #endif
4071 #endif
4072 EOF
4073 if [ "$pfx" = "" ]; then
4074 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4075 fi
4076 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4077 eval ${pfx}libc_type=klibc
4078 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4079 eval ${pfx}libc_type=bionic
4080 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4081 eval ${pfx}libc_type=solaris
4082 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4083 else
4084 eval ${pfx}libc_type=default
4085 add_${pfx}cppflags -D_DEFAULT_SOURCE
4086 fi
4087 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4088 }
4089
4090 probe_libc
4091 probe_libc host_
4092
4093 # hacks for compiler/libc/os combinations
4094
4095 case $libc_type in
4096 bionic)
4097 add_compat strtod.o strtod=avpriv_strtod
4098 ;;
4099 esac
4100
4101 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4102 add_cppflags '-I\$(SRC_PATH)/compat/float'
4103
4104 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4105
4106 set_default $PATHS_LIST
4107 set_default nm
4108
4109 disabled optimizations || check_cflags -fomit-frame-pointer
4110
4111 enable_weak_pic() {
4112 disabled pic && return
4113 enable pic
4114 add_cppflags -DPIC
4115 case "$target_os" in
4116 mingw*|cygwin*|win*)
4117 ;;
4118 *)
4119 add_cflags -fPIC
4120 add_asflags -fPIC
4121 ;;
4122 esac
4123 }
4124
4125 enabled pic && enable_weak_pic
4126
4127 check_cc <<EOF || die "Symbol mangling check failed."
4128 int ff_extern;
4129 EOF
4130 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4131 extern_prefix=${sym%%ff_extern*}
4132
4133 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4134
4135 _restrict=
4136 for restrict_keyword in restrict __restrict__ __restrict; do
4137 check_cc <<EOF && _restrict=$restrict_keyword && break
4138 void foo(char * $restrict_keyword p);
4139 EOF
4140 done
4141
4142 check_cc <<EOF && enable pragma_deprecated
4143 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4144 EOF
4145
4146 check_cc <<EOF || die "endian test failed"
4147 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4148 EOF
4149 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4150
4151 check_gas() {
4152 log "check_gas using '$as' as AS"
4153 # :vararg is used on aarch64, arm and ppc altivec
4154 check_as <<EOF || return 1
4155 .macro m n, y:vararg=0
4156 \n: .int \y
4157 .endm
4158 m x
4159 EOF
4160 # .altmacro is only used in arm asm
4161 ! enabled arm || check_as <<EOF || return 1
4162 .altmacro
4163 EOF
4164 enable gnu_as
4165 return 0
4166 }
4167
4168 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4169 nogas=:
4170 enabled_any arm aarch64 && nogas=die
4171 enabled_all ppc altivec && nogas=warn
4172 as_noop=-v
4173
4174 case $as_type in
4175 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4176 gcc) gaspp_as_type=gas ;;
4177 *) gaspp_as_type=$as_type ;;
4178 esac
4179
4180 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4181
4182 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4183 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4184
4185 if ! check_gas ; then
4186 as=${gas:=$as}
4187 check_gas || \
4188 $nogas "GNU assembler not found, install/update gas-preprocessor"
4189 fi
4190
4191 check_as <<EOF && enable as_func
4192 .func test
4193 .endfunc
4194 EOF
4195 fi
4196
4197 check_inline_asm inline_asm_labels '"1:\n"'
4198
4199 if enabled aarch64; then
4200 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4201 # internal assembler in clang 3.3 does not support this instruction
4202 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4203 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4204
4205 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4206
4207 elif enabled alpha; then
4208
4209 check_cflags -mieee
4210
4211 elif enabled arm; then
4212
4213 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4214 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4215 enabled thumb && check_cflags -mthumb || check_cflags -marm
4216
4217 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4218 enable vfp_args
4219 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4220 enable vfp_args
4221 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4222 case "${cross_prefix:-$cc}" in
4223 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4224 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4225 __asm__ (".eabi_attribute 28, 1");
4226 int main(void) { return 0; }
4227 EOF
4228 esac
4229 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4230 fi
4231
4232 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4233 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4234 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4235 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4236 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4237 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4238
4239 [ $target_os = linux ] || [ $target_os = android ] ||
4240 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4241 $ARCH_EXT_LIST_ARM
4242
4243 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4244
4245 check_as <<EOF && enable as_arch_directive
4246 .arch armv7-a
4247 EOF
4248 check_as <<EOF && enable as_fpu_directive
4249 .fpu neon
4250 EOF
4251
4252 # llvm's integrated assembler supports .object_arch from llvm 3.5
4253 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4254 check_as <<EOF && enable as_object_arch
4255 .object_arch armv4
4256 EOF
4257
4258 # MS armasm fails to assemble our PIC constructs
4259 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4260
4261 elif enabled mips; then
4262
4263 # make sure that only one instruction set is enabled
4264 disable $ARCH_EXT_LIST_MIPS
4265
4266 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4267
4268 if enabled mips64; then
4269 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4270 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4271 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4272 else
4273 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4274 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4275 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4276 fi
4277
4278 elif enabled parisc; then
4279
4280 if enabled gcc; then
4281 case $($cc -dumpversion) in
4282 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4283 esac
4284 fi
4285
4286 elif enabled ppc; then
4287
4288 enable local_aligned_8 local_aligned_16 local_aligned_32
4289
4290 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4291 check_inline_asm ibm_asm '"add 0, 0, 0"'
4292 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4293 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4294
4295 if enabled altivec; then
4296 check_cflags -maltivec -mabi=altivec
4297
4298 # check if our compiler supports Motorola AltiVec C API
4299 check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4300 vector signed int v2 = (vector signed int) { 1 };
4301 v1 = vec_add(v1, v2);" ||
4302 disable altivec
4303
4304 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4305 fi
4306
4307 if enabled vsx; then
4308 check_cflags -mvsx &&
4309 check_code cc altivec.h "int v[4] = { 0 };
4310 vector signed int v1 = vec_vsx_ld(0, v);" ||
4311 disable vsx
4312 fi
4313
4314 if enabled power8; then
4315 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4316 fi
4317
4318 elif enabled x86; then
4319
4320 check_builtin rdtsc intrin.h "__rdtsc()"
4321 check_builtin mm_empty mmintrin.h "_mm_empty()"
4322
4323 enable local_aligned_8 local_aligned_16 local_aligned_32
4324
4325 # check whether EBP is available on x86
4326 # As 'i' is stored on the stack, this program will crash
4327 # if the base pointer is used to access it because the
4328 # base pointer is cleared in the inline assembly code.
4329 check_exec_crash <<EOF && enable ebp_available
4330 volatile int i=0;
4331 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4332 return i;
4333 EOF
4334
4335 # check whether EBX is available on x86
4336 check_inline_asm ebx_available '""::"b"(0)' &&
4337 check_inline_asm ebx_available '"":::"%ebx"'
4338
4339 # check whether xmm clobbers are supported
4340 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4341
4342 # check whether binutils is new enough to compile SSSE3/MMXEXT
4343 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4344 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4345
4346 probe_x86asm(){
4347 x86asmexe_probe=$1
4348 if check_cmd $x86asmexe_probe -v; then
4349 x86asmexe=$x86asmexe_probe
4350 x86asm_type=nasm
4351 x86asm_debug="-g -F dwarf"
4352 X86ASMDEP=
4353 X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4354 elif check_cmd $x86asmexe_probe --version; then
4355 x86asmexe=$x86asmexe_probe
4356 x86asm_type=yasm
4357 x86asm_debug="-g dwarf2"
4358 X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4359 X86ASM_DEPFLAGS=
4360 fi
4361 check_x86asm "movbe ecx, [5]" && enable x86asm
4362 }
4363
4364 if ! disabled_any asm mmx x86asm; then
4365 disable x86asm
4366 for program in $x86asmexe nasm yasm; do
4367 probe_x86asm $program && break
4368 done
4369 disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4370 X86ASMFLAGS="-f $objformat"
4371 enabled pic && append X86ASMFLAGS "-DPIC"
4372 test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
4373 case "$objformat" in
4374 elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4375 esac
4376
4377 check_x86asm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4378 check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4379 check_x86asm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4380 check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4381 check_x86asm "CPU amdnop" || disable cpunop
4382 fi
4383
4384 case "$cpu" in
4385 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4386 disable fast_clz
4387 ;;
4388 esac
4389
4390 fi
4391
4392 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4393
4394 check_ldflags -Wl,--as-needed
4395
4396 if ! disabled network; then
4397 check_func getaddrinfo $network_extralibs
4398 check_func inet_aton $network_extralibs
4399