makedef: Pass EXTERN_PREFIX from configure to makedef
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [avbuild/config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix_default]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs (USE WITH CARE)
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-pod2man do not build manual pages
116 --disable-texi2html do not build HTML documentation
117 --disable-avdevice disable libavdevice build
118 --disable-avcodec disable libavcodec build
119 --disable-avformat disable libavformat build
120 --disable-avutil disable libavutil build
121 --disable-swscale disable libswscale build
122 --disable-avfilter disable video filter support [no]
123 --disable-avresample disable libavresample build [no]
124 --disable-pthreads disable pthreads [auto]
125 --disable-w32threads disable Win32 threads [auto]
126 --disable-network disable network support [no]
127 --disable-dct disable DCT code
128 --disable-error-resilience disable error resilience code
129 --disable-lsp disable LSP code
130 --disable-lzo disable LZO decoder code
131 --disable-mdct disable MDCT code
132 --disable-rdft disable RDFT code
133 --disable-fft disable FFT code
134 --disable-faan disable floating point AAN (I)DCT code
135
136 Individual component options:
137 --disable-everything disable all components listed below
138 --disable-encoder=NAME disable encoder NAME
139 --enable-encoder=NAME enable encoder NAME
140 --disable-encoders disable all encoders
141 --disable-decoder=NAME disable decoder NAME
142 --enable-decoder=NAME enable decoder NAME
143 --disable-decoders disable all decoders
144 --disable-hwaccel=NAME disable hwaccel NAME
145 --enable-hwaccel=NAME enable hwaccel NAME
146 --disable-hwaccels disable all hwaccels
147 --disable-muxer=NAME disable muxer NAME
148 --enable-muxer=NAME enable muxer NAME
149 --disable-muxers disable all muxers
150 --disable-demuxer=NAME disable demuxer NAME
151 --enable-demuxer=NAME enable demuxer NAME
152 --disable-demuxers disable all demuxers
153 --enable-parser=NAME enable parser NAME
154 --disable-parser=NAME disable parser NAME
155 --disable-parsers disable all parsers
156 --enable-bsf=NAME enable bitstream filter NAME
157 --disable-bsf=NAME disable bitstream filter NAME
158 --disable-bsfs disable all bitstream filters
159 --enable-protocol=NAME enable protocol NAME
160 --disable-protocol=NAME disable protocol NAME
161 --disable-protocols disable all protocols
162 --enable-indev=NAME enable input device NAME
163 --disable-indev=NAME disable input device NAME
164 --disable-indevs disable input devices
165 --disable-devices disable all devices
166 --enable-filter=NAME enable filter NAME
167 --disable-filter=NAME disable filter NAME
168 --disable-filters disable all filters
169
170 External library support:
171
172 Using any of the following switches will allow Libav to link to the
173 corresponding external library. All the components depending on that library
174 will become enabled, if all their other dependencies are met and they are not
175 explicitly disabled. E.g. --enable-libwavpack will enable linking to
176 libwavpack and allow the libwavpack encoder to be built, unless it is
177 specifically disabled with --disable-encoder=libwavpack.
178
179 Note that only the system libraries are auto-detected. All the other external
180 libraries must be explicitly enabled.
181
182 Also note that the following help text describes the purpose of the libraries
183 themselves, not all their features will necessarily be usable by Libav.
184
185 --enable-avisynth video frameserver
186 --enable-avxsynth Linux version of AviSynth
187 --enable-bzlib bzip2 compression [autodetect]
188 --enable-frei0r video filtering plugins
189 --enable-gnutls crypto
190 --enable-libbs2b Bauer stereophonic-to-binaural DSP
191 --enable-libcdio audio CD input
192 --enable-libdc1394 IEEE 1394/Firewire camera input
193 --enable-libdcadec DCA audio decoding
194 --enable-libfaac AAC audio encoding
195 --enable-libfdk-aac AAC audio encoding/decoding
196 --enable-libfontconfig font configuration and management
197 --enable-libfreetype font rendering
198 --enable-libgsm GSM audio encoding/decoding
199 --enable-libhdcd HDCD decoding filter
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libjack JACK audio sound server
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-cuvid Nvidia CUVID video decode acceleration
236 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
237 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
238 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
239 --enable-libnpp Nvidia CUDA processing
240 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
241 --enable-nvenc Nvidia video encoding
242 --enable-omx OpenMAX IL
243 --enable-omx-rpi OpenMAX IL for Raspberry Pi
244 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
245 --enable-vda Apple Video Decode Acceleration [auto]
246 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
247
248 Toolchain options:
249 --arch=ARCH select architecture [$arch]
250 --cpu=CPU select the minimum required CPU (affects
251 instruction selection, may crash on older CPUs)
252 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
253 --enable-cross-compile assume a cross-compiler is used
254 --sysroot=PATH root of cross-build tree
255 --sysinclude=PATH location of cross-build system headers
256 --target-os=OS compiler targets OS [$target_os]
257 --target-exec=CMD command to run executables on target
258 --target-path=DIR path to view of build directory on target
259 --target-samples=DIR path to samples directory on target
260 --toolchain=NAME set tool defaults according to NAME
261 --nm=NM use nm tool
262 --ar=AR use archive tool AR [$ar_default]
263 --as=AS use assembler AS [$as_default]
264 --cc=CC use C compiler CC [$cc_default]
265 --objcc=OCC use ObjC compiler OCC [$cc_default]
266 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
267 --ld=LD use linker LD
268 --x86asmexe=X86ASM use x86 assembler X86ASM
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
300
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-x86asm disable use of standalone x86 assembly
328
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --disable-valgrind-backtrace do not print a backtrace under Valgrind
341 (only applies to --disable-optimizations builds)
342 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
343 in the name) of tests whose result is ignored
344
345 NOTE: Object files are built at the place where configure is launched.
346 EOF
347 exit 0
348 }
349
350 log(){
351 echo "$@" >> $logfile
352 }
353
354 log_file(){
355 log BEGIN $1
356 i=1
357 while read line; do
358 printf '%5s %s\n' "${i}" "${line}"
359 i=$(($i+1))
360 done < $1 >> $logfile
361 log END $1
362 }
363
364 echolog(){
365 log "$@"
366 echo "$@"
367 }
368
369 warn(){
370 log "WARNING: $*"
371 WARNINGS="${WARNINGS}WARNING: $*\n"
372 }
373
374 die(){
375 echolog "$@"
376 cat <<EOF
377
378 If you think configure made a mistake, make sure you are using the latest
379 version from Git. If the latest version fails, report the problem to the
380 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
381 EOF
382 if disabled logging; then
383 cat <<EOF
384 Rerun configure with logging enabled (do not use --disable-logging), and
385 include the log this produces with your report.
386 EOF
387 else
388 cat <<EOF
389 Include the log file "$logfile" produced by configure as this will help
390 solving the problem.
391 EOF
392 fi
393 exit 1
394 }
395
396 # Avoid locale weirdness, besides we really just want to translate ASCII.
397 toupper(){
398 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
399 }
400
401 tolower(){
402 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
403 }
404
405 c_escape(){
406 echo "$*" | sed 's/["\\]/\\\0/g'
407 }
408
409 sh_quote(){
410 v=$(echo "$1" | sed "s/'/'\\\\''/g")
411 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
412 echo "$v"
413 }
414
415 cleanws(){
416 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
417 }
418
419 filter(){
420 pat=$1
421 shift
422 for v; do
423 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
424 done
425 }
426
427 filter_out(){
428 pat=$1
429 shift
430 for v; do
431 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
432 done
433 }
434
435 map(){
436 m=$1
437 shift
438 for v; do eval $m; done
439 }
440
441 add_suffix(){
442 suffix=$1
443 shift
444 for v; do echo ${v}${suffix}; done
445 }
446
447 set_all(){
448 value=$1
449 shift
450 for var in $*; do
451 eval $var=$value
452 done
453 }
454
455 set_weak(){
456 value=$1
457 shift
458 for var; do
459 eval : \${$var:=$value}
460 done
461 }
462
463 sanitize_var_name(){
464 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
465 }
466
467 set_sanitized(){
468 var=$1
469 shift
470 eval $(sanitize_var_name "$var")='$*'
471 }
472
473 get_sanitized(){
474 eval echo \$$(sanitize_var_name "$1")
475 }
476
477 pushvar(){
478 for pvar in $*; do
479 eval level=\${${pvar}_level:=0}
480 eval ${pvar}_${level}="\$$pvar"
481 eval ${pvar}_level=$(($level+1))
482 done
483 }
484
485 popvar(){
486 for pvar in $*; do
487 eval level=\${${pvar}_level:-0}
488 test $level = 0 && continue
489 eval level=$(($level-1))
490 eval $pvar="\${${pvar}_${level}}"
491 eval ${pvar}_level=$level
492 eval unset ${pvar}_${level}
493 done
494 }
495
496 enable(){
497 set_all yes $*
498 }
499
500 disable(){
501 set_all no $*
502 }
503
504 enable_weak(){
505 set_weak yes $*
506 }
507
508 disable_weak(){
509 set_weak no $*
510 }
511
512 enable_sanitized(){
513 for var; do
514 enable $(sanitize_var_name $var)
515 done
516 }
517
518 disable_sanitized(){
519 for var; do
520 disable $(sanitize_var_name $var)
521 done
522 }
523
524 do_enable_deep(){
525 for var; do
526 enabled $var && continue
527 eval sel="\$${var}_select"
528 eval sgs="\$${var}_suggest"
529 pushvar var sgs
530 enable_deep $sel
531 popvar sgs
532 enable_deep_weak $sgs
533 popvar var
534 done
535 }
536
537 enable_deep(){
538 do_enable_deep $*
539 enable $*
540 }
541
542 enable_deep_weak(){
543 for var; do
544 disabled $var && continue
545 pushvar var
546 do_enable_deep $var
547 popvar var
548 enable_weak $var
549 done
550 }
551
552 enabled(){
553 test "${1#!}" = "$1" && op="=" || op="!="
554 eval test "x\$${1#!}" $op "xyes"
555 }
556
557 disabled(){
558 test "${1#!}" = "$1" && op="=" || op="!="
559 eval test "x\$${1#!}" $op "xno"
560 }
561
562 enabled_all(){
563 for opt; do
564 enabled $opt || return 1
565 done
566 }
567
568 disabled_all(){
569 for opt; do
570 disabled $opt || return 1
571 done
572 }
573
574 enabled_any(){
575 for opt; do
576 enabled $opt && return 0
577 done
578 }
579
580 disabled_any(){
581 for opt; do
582 disabled $opt && return 0
583 done
584 return 1
585 }
586
587 set_default(){
588 for opt; do
589 eval : \${$opt:=\$${opt}_default}
590 done
591 }
592
593 is_in(){
594 value=$1
595 shift
596 for var in $*; do
597 [ $var = $value ] && return 0
598 done
599 return 1
600 }
601
602 check_deps(){
603 for cfg; do
604 enabled ${cfg}_checking && die "Circular dependency for $cfg."
605 disabled ${cfg}_checking && continue
606 enable ${cfg}_checking
607
608 eval dep_all="\$${cfg}_deps"
609 eval dep_any="\$${cfg}_deps_any"
610 eval dep_con="\$${cfg}_conflict"
611 eval dep_sel="\$${cfg}_select"
612 eval dep_sgs="\$${cfg}_suggest"
613 eval dep_ifa="\$${cfg}_if"
614 eval dep_ifn="\$${cfg}_if_any"
615
616 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
617 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
618 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
619
620 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
621 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
622 enabled_all $dep_all || disable $cfg
623 enabled_any $dep_any || disable $cfg
624 disabled_all $dep_con || disable $cfg
625 disabled_any $dep_sel && disable $cfg
626
627 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
628
629 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
630 # filter out library deps, these do not belong in extralibs
631 is_in $dep $LIBRARY_LIST && continue
632 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
633 done
634
635 disable ${cfg}_checking
636 done
637 }
638
639 print_config(){
640 pfx=$1
641 files=$2
642 shift 2
643 map 'eval echo "$v \${$v:-no}"' "$@" |
644 awk "BEGIN { split(\"$files\", files) }
645 {
646 c = \"$pfx\" toupper(\$1);
647 v = \$2;
648 sub(/yes/, 1, v);
649 sub(/no/, 0, v);
650 for (f in files) {
651 file = files[f];
652 if (file ~ /\\.h\$/) {
653 printf(\"#define %s %d\\n\", c, v) >>file;
654 } else if (file ~ /\\.asm\$/) {
655 printf(\"%%define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.mak\$/) {
657 n = -v ? \"\" : \"!\";
658 printf(\"%s%s=yes\\n\", n, c) >>file;
659 }
660 }
661 }"
662 }
663
664 print_enabled(){
665 suf=$1
666 shift
667 for v; do
668 enabled $v && printf "%s\n" ${v%$suf}
669 done
670 }
671
672 append(){
673 var=$1
674 shift
675 eval "$var=\"\$$var $*\""
676 }
677
678 prepend(){
679 var=$1
680 shift
681 eval "$var=\"$* \$$var\""
682 }
683
684 unique(){
685 var=$1
686 uniq_list=""
687 for tok in $(eval echo \$$var); do
688 uniq_list="$(filter_out $tok $uniq_list) $tok"
689 done
690 eval "$var=\"${uniq_list}\""
691 }
692
693 resolve(){
694 var=$1
695 tmpvar=
696 for entry in $(eval echo \$$var); do
697 tmpvar="$tmpvar $(eval echo \$${entry})"
698 done
699 eval "$var=\"${tmpvar}\""
700 }
701
702 add_cppflags(){
703 append CPPFLAGS "$@"
704 }
705
706 add_cflags(){
707 append CFLAGS $($cflags_filter "$@")
708 }
709
710 add_cflags_headers(){
711 append CFLAGS_HEADERS $($cflags_filter "$@")
712 }
713
714 add_asflags(){
715 append ASFLAGS $($asflags_filter "$@")
716 }
717
718 add_objcflags(){
719 append OBJCFLAGS $($objcflags_filter "$@")
720 }
721
722 add_ldflags(){
723 append LDFLAGS $($ldflags_filter "$@")
724 }
725
726 add_ldexeflags(){
727 append LDEXEFLAGS $($ldflags_filter "$@")
728 }
729
730 add_ldsoflags(){
731 append LDSOFLAGS $($ldflags_filter "$@")
732 }
733
734 add_stripflags(){
735 append STRIPFLAGS "$@"
736 }
737
738 add_extralibs(){
739 prepend extralibs $($ldflags_filter "$@")
740 }
741
742 add_host_cppflags(){
743 append host_cppflags "$@"
744 }
745
746 add_host_cflags(){
747 append host_cflags $($host_cflags_filter "$@")
748 }
749
750 add_host_ldflags(){
751 append host_ldflags $($host_ldflags_filter "$@")
752 }
753
754 add_compat(){
755 append compat_objs $1
756 shift
757 map 'add_cppflags -D$v' "$@"
758 }
759
760 check_cmd(){
761 log "$@"
762 "$@" >> $logfile 2>&1
763 }
764
765 cc_o(){
766 eval printf '%s\\n' $CC_O
767 }
768
769 cc_e(){
770 eval printf '%s\\n' $CC_E
771 }
772
773 check_cc(){
774 log check_cc "$@"
775 cat > $TMPC
776 log_file $TMPC
777 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
778 }
779
780 check_objcc(){
781 log check_objcc "$@"
782 cat > $TMPC
783 log_file $TMPC
784 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
785 }
786
787 check_cpp(){
788 log check_cpp "$@"
789 cat > $TMPC
790 log_file $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
792 }
793
794 as_o(){
795 eval printf '%s\\n' $AS_O
796 }
797
798 check_as(){
799 log check_as "$@"
800 cat > $TMPS
801 log_file $TMPS
802 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
803 }
804
805 check_inline_asm(){
806 log check_inline_asm "$@"
807 name="$1"
808 code="$2"
809 shift 2
810 disable $name
811 check_cc "$@" <<EOF && enable $name
812 void foo(void){ __asm__ volatile($code); }
813 EOF
814 }
815
816 check_insn(){
817 log check_insn "$@"
818 check_inline_asm ${1}_inline "\"$2\""
819 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
820 }
821
822 check_x86asm(){
823 log check_x86asm "$@"
824 echo "$1" > $TMPS
825 log_file $TMPS
826 shift 1
827 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
828 }
829
830 ld_o(){
831 eval printf '%s\\n' $LD_O
832 }
833
834 check_ld(){
835 log check_ld "$@"
836 flags=$(filter_out '-l*' "$@")
837 libs=$(filter '-l*' "$@")
838 check_cc $($cflags_filter $flags) || return
839 flags=$($ldflags_filter $flags)
840 libs=$($ldflags_filter $libs)
841 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
842 }
843
844 print_include(){
845 hdr=$1
846 test "${hdr%.h}" = "${hdr}" &&
847 echo "#include $hdr" ||
848 echo "#include <$hdr>"
849 }
850
851 check_code(){
852 log check_code "$@"
853 check=$1
854 headers=$2
855 code=$3
856 shift 3
857 {
858 for hdr in $headers; do
859 print_include $hdr
860 done
861 echo "int main(void) { $code; return 0; }"
862 } | check_$check "$@"
863 }
864
865 check_cppflags(){
866 log check_cppflags "$@"
867 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
868 #include <stdlib.h>;
869 EOF
870 }
871
872 test_cflags(){
873 log test_cflags "$@"
874 set -- $($cflags_filter "$@")
875 check_cc "$@" <<EOF
876 int x;
877 EOF
878 }
879
880 check_cflags(){
881 log check_cflags "$@"
882 test_cflags "$@" && add_cflags "$@"
883 }
884
885 test_objcflags(){
886 log test_objcflags "$@"
887 set -- $($objcflags_filter "$@")
888 check_objcc "$@" <<EOF
889 int x;
890 EOF
891 }
892
893 check_objcflags(){
894 log check_objcflags "$@"
895 test_objcflags "$@" && add_objcflags "$@"
896 }
897
898 test_ldflags(){
899 log test_ldflags "$@"
900 set -- $($ldflags_filter "$@")
901 check_ld "$@" <<EOF
902 int main(void){ return 0; }
903 EOF
904 }
905
906 check_ldflags(){
907 log check_ldflags "$@"
908 test_ldflags "$@" && add_ldflags "$@"
909 }
910
911 test_stripflags(){
912 log test_stripflags "$@"
913 # call check_cc to get a fresh TMPO
914 check_cc <<EOF
915 int main(void) { return 0; }
916 EOF
917 check_cmd $strip $STRIPFLAGS "$@" $TMPO
918 }
919
920 check_stripflags(){
921 log check_stripflags "$@"
922 test_stripflags "$@" && add_stripflags "$@"
923 }
924
925 check_header(){
926 log check_header "$@"
927 headers=$1
928 shift
929 disable_sanitized $headers
930 {
931 for hdr in $headers; do
932 print_include $hdr
933 done
934 echo "int x;"
935 } | check_cpp "$@" && enable_sanitized $headers
936 }
937
938 check_func(){
939 log check_func "$@"
940 func=$1
941 shift
942 disable $func
943 check_ld "$@" <<EOF && enable $func
944 extern int $func();
945 int main(void){ $func(); }
946 EOF
947 }
948
949 check_mathfunc(){
950 log check_mathfunc "$@"
951 func=$1
952 narg=$2
953 shift 2
954 test $narg = 2 && args="f, g" || args="f"
955 disable $func
956 check_ld "$@" <<EOF && enable $func
957 #include <math.h>
958 float foo(float f, float g) { return $func($args); }
959 int main(void){ return 0; }
960 EOF
961 }
962
963 check_func_headers(){
964 log check_func_headers "$@"
965 headers=$1
966 funcs=$2
967 shift 2
968 {
969 for hdr in $headers; do
970 print_include $hdr
971 done
972 for func in $funcs; do
973 echo "long check_$func(void) { return (long) $func; }"
974 done
975 echo "int main(void) { return 0; }"
976 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
977 }
978
979 check_cpp_condition(){
980 log check_cpp_condition "$@"
981 header=$1
982 condition=$2
983 shift 2
984 check_cpp "$@" <<EOF
985 #include <$header>
986 #if !($condition)
987 #error "unsatisfied condition: $condition"
988 #endif
989 EOF
990 }
991
992 test_cflags_cpp(){
993 log test_cflags_cpp "$@"
994 flags=$1
995 condition=$2
996 shift 2
997 set -- $($cflags_filter "$flags")
998 check_cpp "$@" <<EOF
999 #if !($condition)
1000 #error "unsatisfied condition: $condition"
1001 #endif
1002 EOF
1003 }
1004
1005 check_lib(){
1006 log check_lib "$@"
1007 name="$1"
1008 headers="$2"
1009 funcs="$3"
1010 shift 3
1011 disable $name
1012 check_func_headers "$headers" "$funcs" "$@" &&
1013 enable $name && eval ${name}_extralibs="\$@"
1014 }
1015
1016 test_pkg_config(){
1017 log test_pkg_config "$@"
1018 name="$1"
1019 pkg_version="$2"
1020 pkg="${2%% *}"
1021 headers="$3"
1022 funcs="$4"
1023 shift 4
1024 disable $name
1025 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1026 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1027 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1028 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1029 enable $name &&
1030 set_sanitized "${name}_cflags" $pkg_cflags &&
1031 set_sanitized "${name}_extralibs" $pkg_libs
1032 }
1033
1034 check_pkg_config(){
1035 log check_pkg_config "$@"
1036 name="$1"
1037 test_pkg_config "$@" &&
1038 eval add_cflags \$${name}_cflags
1039 }
1040
1041 check_exec(){
1042 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1043 }
1044
1045 check_exec_crash(){
1046 log check_exec_crash "$@"
1047 code=$(cat)
1048
1049 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1050 # are safe but may not be available everywhere. Thus we use
1051 # raise(SIGTERM) instead. The check is run in a subshell so we
1052 # can redirect the "Terminated" message from the shell. SIGBUS
1053 # is not defined by standard C so it is used conditionally.
1054
1055 (check_exec "$@") >> $logfile 2>&1 <<EOF
1056 #include <signal.h>
1057 static void sighandler(int sig){
1058 raise(SIGTERM);
1059 }
1060 int foo(void){
1061 $code
1062 }
1063 int (*func_ptr)(void) = foo;
1064 int main(void){
1065 signal(SIGILL, sighandler);
1066 signal(SIGFPE, sighandler);
1067 signal(SIGSEGV, sighandler);
1068 #ifdef SIGBUS
1069 signal(SIGBUS, sighandler);
1070 #endif
1071 return func_ptr();
1072 }
1073 EOF
1074 }
1075
1076 check_type(){
1077 log check_type "$@"
1078 headers=$1
1079 type=$2
1080 shift 2
1081 disable_sanitized "$type"
1082 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1083 }
1084
1085 check_struct(){
1086 log check_struct "$@"
1087 headers=$1
1088 struct=$2
1089 member=$3
1090 shift 3
1091 disable_sanitized "${struct}_${member}"
1092 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1093 enable_sanitized "${struct}_${member}"
1094 }
1095
1096 check_builtin(){
1097 log check_builtin "$@"
1098 name=$1
1099 headers=$2
1100 builtin=$3
1101 shift 3
1102 disable "$name"
1103 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1104 }
1105
1106 check_compile_assert(){
1107 log check_compile_assert "$@"
1108 name=$1
1109 headers=$2
1110 condition=$3
1111 shift 3
1112 disable "$name"
1113 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1114 }
1115
1116 require(){
1117 log require "$@"
1118 name_version="$1"
1119 name="${1%% *}"
1120 headers="$2"
1121 func="$3"
1122 shift 3
1123 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1124 }
1125
1126 require_header(){
1127 log require_header "$@"
1128 headers="$1"
1129 shift
1130 check_header "$headers" "$@" || die "ERROR: $headers not found"
1131 }
1132
1133 require_cpp_condition(){
1134 log require_cpp_condition "$@"
1135 header="$1"
1136 condition="$2"
1137 shift 2
1138 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1139 }
1140
1141 require_pkg_config(){
1142 log require_pkg_config "$@"
1143 pkg_version="$2"
1144 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1145 }
1146
1147 hostcc_e(){
1148 eval printf '%s\\n' $HOSTCC_E
1149 }
1150
1151 hostcc_o(){
1152 eval printf '%s\\n' $HOSTCC_O
1153 }
1154
1155 check_host_cc(){
1156 log check_host_cc "$@"
1157 cat > $TMPC
1158 log_file $TMPC
1159 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1160 }
1161
1162 check_host_cpp(){
1163 log check_host_cpp "$@"
1164 cat > $TMPC
1165 log_file $TMPC
1166 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1167 }
1168
1169 check_host_cppflags(){
1170 log check_host_cppflags "$@"
1171 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1172 #include <stdlib.h>;
1173 EOF
1174 }
1175
1176 check_host_cflags(){
1177 log check_host_cflags "$@"
1178 set -- $($host_cflags_filter "$@")
1179 check_host_cc "$@" <<EOF && append host_cflags "$@"
1180 int x;
1181 EOF
1182 }
1183
1184 check_host_cpp_condition(){
1185 log check_host_cpp_condition "$@"
1186 header=$1
1187 condition=$2
1188 shift 2
1189 check_host_cpp "$@" <<EOF
1190 #include <$header>
1191 #if !($condition)
1192 #error "unsatisfied condition: $condition"
1193 #endif
1194 EOF
1195 }
1196
1197 cp_if_changed(){
1198 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1199 mkdir -p "$(dirname $2)"
1200 cp -f "$1" "$2"
1201 }
1202
1203 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1204 # system-dependent things.
1205
1206 AVCODEC_COMPONENTS="
1207 bsfs
1208 decoders
1209 encoders
1210 hwaccels
1211 parsers
1212 "
1213
1214 AVDEVICE_COMPONENTS="
1215 indevs
1216 "
1217 AVFILTER_COMPONENTS="
1218 filters
1219 "
1220 AVFORMAT_COMPONENTS="
1221 demuxers
1222 muxers
1223 protocols
1224 "
1225
1226 COMPONENT_LIST="
1227 $AVCODEC_COMPONENTS
1228 $AVDEVICE_COMPONENTS
1229 $AVFILTER_COMPONENTS
1230 $AVFORMAT_COMPONENTS
1231 "
1232
1233 EXAMPLE_LIST="
1234 decode_audio_example
1235 decode_video_example
1236 encode_audio_example
1237 encode_video_example
1238 filter_audio_example
1239 metadata_example
1240 output_example
1241 qsvdec_example
1242 transcode_aac_example
1243 "
1244
1245 # catchall list of things that require external libs to link
1246 EXTRALIBS_LIST="
1247 cpu_init
1248 cws2fws
1249 "
1250
1251 HWACCEL_LIBRARY_NONFREE_LIST="
1252 cuda
1253 cuvid
1254 libnpp
1255 "
1256 HWACCEL_LIBRARY_LIST="
1257 $HWACCEL_LIBRARY_NONFREE_LIST
1258 d3d11va
1259 dxva2
1260 libmfx
1261 mmal
1262 nvenc
1263 omx
1264 vaapi
1265 vda
1266 vdpau
1267 "
1268
1269 EXTERNAL_LIBRARY_GPL_LIST="
1270 libcdio
1271 libx264
1272 libx265
1273 libxavs
1274 libxvid
1275 "
1276
1277 EXTERNAL_LIBRARY_NONFREE_LIST="
1278 libfaac
1279 libfdk_aac
1280 openssl
1281 "
1282
1283 EXTERNAL_LIBRARY_VERSION3_LIST="
1284 libopencore_amrnb
1285 libopencore_amrwb
1286 libvo_aacenc
1287 libvo_amrwbenc
1288 "
1289
1290 EXTERNAL_LIBRARY_LIST="
1291 $EXTERNAL_LIBRARY_GPL_LIST
1292 $EXTERNAL_LIBRARY_NONFREE_LIST
1293 $EXTERNAL_LIBRARY_VERSION3_LIST
1294 avisynth
1295 avxsynth
1296 frei0r
1297 gnutls
1298 libbs2b
1299 libdc1394
1300 libdcadec
1301 libfontconfig
1302 libfreetype
1303 libgsm
1304 libhdcd
1305 libilbc
1306 libjack
1307 libkvazaar
1308 libmp3lame
1309 libopencv
1310 libopenh264
1311 libopenjpeg
1312 libopus
1313 libpulse
1314 librtmp
1315 libschroedinger
1316 libsnappy
1317 libspeex
1318 libtheora
1319 libtwolame
1320 libvorbis
1321 libvpx
1322 libwavpack
1323 libwebp
1324 libxcb
1325 libxcb_shm
1326 libxcb_xfixes
1327 "
1328
1329 SYSTEM_LIBRARY_LIST="
1330 bzlib
1331 zlib
1332 "
1333
1334 FEATURE_LIST="
1335 gray
1336 hardcoded_tables
1337 omx_rpi
1338 runtime_cpudetect
1339 safe_bitstream_reader
1340 shared
1341 small
1342 sram
1343 static
1344 swscale_alpha
1345 "
1346
1347 LIBRARY_LIST="
1348 avcodec
1349 avdevice
1350 avfilter
1351 avformat
1352 avresample
1353 avutil
1354 swscale
1355 "
1356
1357 LICENSE_LIST="
1358 gpl
1359 nonfree
1360 version3
1361 "
1362
1363 PROGRAM_LIST="
1364 avconv
1365 avplay
1366 avprobe
1367 "
1368
1369 SUBSYSTEM_LIST="
1370 dct
1371 doc
1372 error_resilience
1373 faan
1374 fft
1375 lsp
1376 lzo
1377 mdct
1378 network
1379 rdft
1380 "
1381
1382 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1383 CONFIG_LIST="
1384 $EXAMPLE_LIST
1385 $EXTERNAL_LIBRARY_LIST
1386 $HWACCEL_LIBRARY_LIST
1387 $FEATURE_LIST
1388 $LICENSE_LIST
1389 $LIBRARY_LIST
1390 $PROGRAM_LIST
1391 $SUBSYSTEM_LIST
1392 $SYSTEM_LIBRARY_LIST
1393 neon_clobber_test
1394 pic
1395 pod2man
1396 texi2html
1397 thumb
1398 valgrind_backtrace
1399 xmm_clobber_test
1400 $COMPONENT_LIST
1401 "
1402
1403 THREADS_LIST="
1404 pthreads
1405 w32threads
1406 "
1407
1408 ATOMICS_LIST="
1409 atomics_gcc
1410 atomics_suncc
1411 atomics_win32
1412 "
1413
1414 ARCH_LIST="
1415 aarch64
1416 alpha
1417 arm
1418 avr32
1419 avr32_ap
1420 avr32_uc
1421 bfin
1422 ia64
1423 m68k
1424 mips
1425 mips64
1426 parisc
1427 ppc
1428 ppc64
1429 s390
1430 sh4
1431 sparc
1432 sparc64
1433 tilegx
1434 tilepro
1435 tomi
1436 x86
1437 x86_32
1438 x86_64
1439 "
1440
1441 ARCH_EXT_LIST_ARM="
1442 armv5te
1443 armv6
1444 armv6t2
1445 armv8
1446 neon
1447 vfp
1448 vfpv3
1449 "
1450
1451 ARCH_EXT_LIST_X86_SIMD="
1452 amd3dnow
1453 amd3dnowext
1454 avx
1455 avx2
1456 fma3
1457 fma4
1458 mmx
1459 mmxext
1460 sse
1461 sse2
1462 sse3
1463 sse4
1464 sse42
1465 ssse3
1466 xop
1467 "
1468
1469 ARCH_EXT_LIST_PPC="
1470 altivec
1471 dcbzl
1472 ldbrx
1473 power8
1474 ppc4xx
1475 vsx
1476 "
1477
1478 ARCH_EXT_LIST_X86="
1479 $ARCH_EXT_LIST_X86_SIMD
1480 cpunop
1481 i686
1482 "
1483
1484 ARCH_EXT_LIST_MIPS="
1485 loongson
1486 mips32r1
1487 mips64r1
1488 mips32r2
1489 mips64r2
1490 mips32r6
1491 mips64r6
1492 "
1493
1494 ARCH_EXT_LIST="
1495 $ARCH_EXT_LIST_ARM
1496 $ARCH_EXT_LIST_MIPS
1497 $ARCH_EXT_LIST_PPC
1498 $ARCH_EXT_LIST_X86
1499 vis
1500 "
1501
1502 ARCH_FEATURES="
1503 aligned_stack
1504 fast_64bit
1505 fast_clz
1506 fast_cmov
1507 local_aligned_8
1508 local_aligned_16
1509 local_aligned_32
1510 simd_align_16
1511 simd_align_32
1512 "
1513
1514 BUILTIN_LIST="
1515 atomic_cas_ptr
1516 machine_rw_barrier
1517 MemoryBarrier
1518 mm_empty
1519 rdtsc
1520 sem_timedwait
1521 sync_val_compare_and_swap
1522 "
1523 HAVE_LIST_CMDLINE="
1524 inline_asm
1525 symver
1526 x86asm
1527 "
1528
1529 HAVE_LIST_PUB="
1530 bigendian
1531 fast_unaligned
1532 "
1533
1534 HEADERS_LIST="
1535 AVFoundation_AVFoundation_h
1536 arpa_inet_h
1537 cdio_paranoia_h
1538 cdio_paranoia_paranoia_h
1539 dispatch_dispatch_h
1540 dev_bktr_ioctl_bt848_h
1541 dev_bktr_ioctl_meteor_h
1542 dev_ic_bt8xx_h
1543 dev_video_bktr_ioctl_bt848_h
1544 dev_video_meteor_ioctl_meteor_h
1545 direct_h
1546 dxgidebug_h
1547 dxva_h
1548 io_h
1549 machine_ioctl_bt848_h
1550 machine_ioctl_meteor_h
1551 malloc_h
1552 poll_h
1553 sys_param_h
1554 sys_resource_h
1555 sys_select_h
1556 sys_soundcard_h
1557 sys_time_h
1558 sys_un_h
1559 sys_videoio_h
1560 unistd_h
1561 valgrind_valgrind_h
1562 windows_h
1563 winsock2_h
1564 "
1565
1566 INTRINSICS_LIST="
1567 intrinsics_neon
1568 "
1569
1570 MATH_FUNCS="
1571 atanf
1572 atan2f
1573 cbrtf
1574 cosf
1575 exp2
1576 exp2f
1577 expf
1578 isinf
1579 isnan
1580 ldexpf
1581 llrint
1582 llrintf
1583 log2
1584 log2f
1585 log10f
1586 lrint
1587 lrintf
1588 powf
1589 rint
1590 round
1591 roundf
1592 sinf
1593 trunc
1594 truncf
1595 "
1596
1597 SYSTEM_FEATURES="
1598 dos_paths
1599 libc_msvcrt
1600 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1601 section_data_rel_ro
1602 threads
1603 uwp
1604 "
1605
1606 SYSTEM_FUNCS="
1607 aligned_malloc
1608 clock_gettime
1609 closesocket
1610 CommandLineToArgvW
1611 fcntl
1612 getaddrinfo
1613 gethrtime
1614 getopt
1615 GetProcessAffinityMask
1616 GetProcessMemoryInfo
1617 GetProcessTimes
1618 getrusage
1619 GetSystemTimeAsFileTime
1620 gettimeofday
1621 gmtime_r
1622 inet_aton
1623 isatty
1624 localtime_r
1625 mach_absolute_time
1626 MapViewOfFile
1627 memalign
1628 mmap
1629 mprotect
1630 nanosleep
1631 posix_memalign
1632 sched_getaffinity
1633 SetConsoleTextAttribute
1634 setmode
1635 setrlimit
1636 Sleep
1637 strerror_r
1638 sysconf
1639 sysctl
1640 usleep
1641 VirtualAlloc
1642 "
1643
1644 SYSTEM_LIBRARIES="
1645 sdl
1646 vaapi_1
1647 vaapi_drm
1648 vaapi_x11
1649 vdpau_x11
1650 wincrypt
1651 "
1652
1653 TOOLCHAIN_FEATURES="
1654 as_arch_directive
1655 as_fpu_directive
1656 as_func
1657 as_object_arch
1658 asm_mod_q
1659 blocks_extension
1660 ebp_available
1661 ebx_available
1662 gnu_as
1663 ibm_asm
1664 inline_asm_labels
1665 pragma_deprecated
1666 symver_asm_label
1667 symver_gnu_asm
1668 vfp_args
1669 xform_asm
1670 xmm_clobbers
1671 "
1672
1673 TYPES_LIST="
1674 CONDITION_VARIABLE_Ptr
1675 CUVIDDECODECREATEINFO_bitDepthMinus8
1676 socklen_t
1677 struct_addrinfo
1678 struct_group_source_req
1679 struct_ip_mreq_source
1680 struct_ipv6_mreq
1681 struct_pollfd
1682 struct_rusage_ru_maxrss
1683 struct_sockaddr_in6
1684 struct_sockaddr_sa_len
1685 struct_sockaddr_storage
1686 struct_v4l2_frmivalenum_discrete
1687 "
1688
1689 HAVE_LIST="
1690 $ARCH_EXT_LIST
1691 $(add_suffix _external $ARCH_EXT_LIST)
1692 $(add_suffix _inline $ARCH_EXT_LIST)
1693 $ARCH_FEATURES
1694 $BUILTIN_LIST
1695 $HAVE_LIST_CMDLINE
1696 $HAVE_LIST_PUB
1697 $HEADERS_LIST
1698 $INTRINSICS_LIST
1699 $MATH_FUNCS
1700 $SYSTEM_FEATURES
1701 $SYSTEM_FUNCS
1702 $SYSTEM_LIBRARIES
1703 $THREADS_LIST
1704 $TOOLCHAIN_FEATURES
1705 $TYPES_LIST
1706 "
1707
1708 # options emitted with CONFIG_ prefix but not available on the command line
1709 CONFIG_EXTRA="
1710 aandcttables
1711 ac3dsp
1712 adts_header
1713 audio_frame_queue
1714 audiodsp
1715 blockdsp
1716 bswapdsp
1717 cabac
1718 cbs
1719 cbs_h264
1720 cbs_h265
1721 cbs_mpeg2
1722 dirac_parse
1723 dvprofile
1724 faandct
1725 faanidct
1726 fdctdsp
1727 flacdsp
1728 fmtconvert
1729 g722dsp
1730 gmp
1731 golomb
1732 gplv3
1733 h263dsp
1734 h264chroma
1735 h264dsp
1736 h264parse
1737 h264pred
1738 h264qpel
1739 hevcparse
1740 hpeldsp
1741 huffman
1742 huffyuvdsp
1743 huffyuvencdsp
1744 idctdsp
1745 iirfilter
1746 imdct15
1747 intrax8
1748 iso_media
1749 ividsp
1750 jpegtables
1751 lgplv3
1752 libx262
1753 libxcb_shape
1754 lpc
1755 lzf
1756 me_cmp
1757 mpeg_er
1758 mpegaudio
1759 mpegaudiodsp
1760 mpegaudioheader
1761 mpegvideo
1762 mpegvideoenc
1763 mss34dsp
1764 pixblockdsp
1765 qpeldsp
1766 qsv
1767 qsvdec
1768 qsvenc
1769 qsvvpp
1770 rangecoder
1771 riffdec
1772 riffenc
1773 rtpdec
1774 rtpenc_chain
1775 rv34dsp
1776 sinewin
1777 snappy
1778 srtp
1779 startcode
1780 texturedsp
1781 texturedspenc
1782 tpeldsp
1783 vaapi_encode
1784 vc1dsp
1785 videodsp
1786 vp3dsp
1787 vp56dsp
1788 vp8dsp
1789 wma_freqs
1790 wmv2dsp
1791 "
1792
1793 CMDLINE_SELECT="
1794 $ARCH_EXT_LIST
1795 $CONFIG_LIST
1796 $HAVE_LIST_CMDLINE
1797 $THREADS_LIST
1798 asm
1799 cross_compile
1800 debug
1801 extra_warnings
1802 logging
1803 lto
1804 optimizations
1805 rpath
1806 "
1807
1808 PATHS_LIST="
1809 bindir
1810 datadir
1811 docdir
1812 incdir
1813 libdir
1814 mandir
1815 prefix
1816 shlibdir
1817 "
1818
1819 CMDLINE_SET="
1820 $PATHS_LIST
1821 ar
1822 arch
1823 as
1824 cc
1825 objcc
1826 cpu
1827 cross_prefix
1828 custom_allocator
1829 dep_cc
1830 env
1831 extra_version
1832 host_cc
1833 host_cflags
1834 host_extralibs
1835 host_ld
1836 host_ldflags
1837 host_os
1838 ignore_tests
1839 ld
1840 logfile
1841 malloc_prefix
1842 nm
1843 optflags
1844 pkg_config
1845 pkg_config_flags
1846 samples
1847 sysinclude
1848 sysroot
1849 target_exec
1850 target_os
1851 target_path
1852 target_samples
1853 toolchain
1854 x86asmexe
1855 "
1856
1857 CMDLINE_APPEND="
1858 extra_cflags
1859 extra_objcflags
1860 host_cppflags
1861 "
1862
1863 # code dependency declarations
1864
1865 # architecture extensions
1866
1867 armv5te_deps="arm"
1868 armv6_deps="arm"
1869 armv6t2_deps="arm"
1870 armv8_deps="aarch64"
1871 neon_deps_any="aarch64 arm"
1872 intrinsics_neon_deps="neon"
1873 vfp_deps_any="aarch64 arm"
1874 vfpv3_deps="vfp"
1875
1876 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1877
1878 altivec_deps="ppc"
1879 dcbzl_deps="ppc"
1880 ldbrx_deps="ppc"
1881 ppc4xx_deps="ppc"
1882 vsx_deps="altivec"
1883 power8_deps="vsx"
1884
1885 loongson_deps="mips"
1886 mips32r1_deps="mips32"
1887 mips32r2_deps="mips32"
1888 mips32r6_deps="mips32"
1889 mips64r1_deps="mips64"
1890 mips64r2_deps="mips64"
1891 mips64r6_deps="mips64"
1892
1893 vis_deps="sparc"
1894
1895 cpunop_deps="i686"
1896 x86_64_select="i686"
1897 x86_64_suggest="fast_cmov"
1898
1899 amd3dnow_deps="mmx"
1900 amd3dnowext_deps="amd3dnow"
1901 i686_deps="x86"
1902 mmx_deps="x86"
1903 mmxext_deps="mmx"
1904 sse_deps="mmxext"
1905 sse2_deps="sse"
1906 sse3_deps="sse2"
1907 ssse3_deps="sse3"
1908 sse4_deps="ssse3"
1909 sse42_deps="sse4"
1910 avx_deps="sse42"
1911 xop_deps="avx"
1912 fma3_deps="avx"
1913 fma4_deps="avx"
1914 avx2_deps="avx"
1915
1916 mmx_external_deps="x86asm"
1917 mmx_inline_deps="inline_asm x86"
1918 mmx_suggest="mmx_external mmx_inline"
1919
1920 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1921 eval dep=\$${ext}_deps
1922 eval ${ext}_external_deps='"${dep}_external"'
1923 eval ${ext}_inline_deps='"${dep}_inline"'
1924 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1925 done
1926
1927 aligned_stack_if_any="aarch64 ppc x86"
1928 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1929 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1930 fast_unaligned_if_any="aarch64 ppc x86"
1931 simd_align_16_if_any="altivec neon sse"
1932 simd_align_32_if_any="avx"
1933
1934 # system capabilities
1935 symver_if_any="symver_asm_label symver_gnu_asm"
1936 valgrind_backtrace_conflict="optimizations"
1937 valgrind_backtrace_deps="valgrind_valgrind_h"
1938
1939 # threading support
1940 atomics_gcc_if="sync_val_compare_and_swap"
1941 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1942 atomics_win32_if="MemoryBarrier"
1943 atomics_native_if_any="$ATOMICS_LIST"
1944 w32threads_deps="atomics_native"
1945 threads_if_any="$THREADS_LIST"
1946
1947 # subsystems
1948 cbs_h264_select="cbs golomb"
1949 cbs_h265_select="cbs golomb"
1950 cbs_mpeg2_select="cbs"
1951 dct_select="rdft"
1952 dirac_parse_select="golomb"
1953 error_resilience_select="me_cmp"
1954 faandct_deps="faan"
1955 faandct_select="fdctdsp"
1956 faanidct_deps="faan"
1957 faanidct_select="idctdsp"
1958 h264dsp_select="startcode"
1959 hevcparse_select="golomb"
1960 intrax8_select="blockdsp idctdsp"
1961 mdct_select="fft"
1962 rdft_select="fft"
1963 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1964 mpeg_er_select="error_resilience"
1965 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1966 mpegaudiodsp_select="dct"
1967 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1968 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1969 vc1dsp_select="h264chroma qpeldsp startcode"
1970
1971 # decoders / encoders
1972 aac_decoder_select="adts_header imdct15 mdct sinewin"
1973 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1974 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1975 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1976 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1977 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1978 adpcm_g722_decoder_select="g722dsp"
1979 adpcm_g722_encoder_select="g722dsp"
1980 aic_decoder_select="golomb idctdsp"
1981 alac_encoder_select="lpc"
1982 als_decoder_select="bswapdsp"
1983 amrnb_decoder_select="lsp"
1984 amrwb_decoder_select="lsp"
1985 amv_decoder_select="sp5x_decoder"
1986 ape_decoder_select="bswapdsp"
1987 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1988 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1989 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1990 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1991 atrac1_decoder_select="mdct sinewin"
1992 atrac3_decoder_select="mdct"
1993 atrac3p_decoder_select="mdct sinewin"
1994 bink_decoder_select="blockdsp hpeldsp"
1995 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1996 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1997 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1998 clearvideo_decoder_select="idctdsp"
1999 cllc_decoder_select="bswapdsp"
2000 comfortnoise_encoder_select="lpc"
2001 cook_decoder_select="audiodsp mdct sinewin"
2002 cscd_decoder_select="lzo"
2003 cscd_decoder_suggest="zlib"
2004 dca_decoder_select="fmtconvert mdct"
2005 dds_decoder_select="texturedsp"
2006 dnxhd_decoder_select="blockdsp idctdsp"
2007 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2008 dvvideo_decoder_select="dvprofile idctdsp"
2009 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2010 dxa_decoder_deps="zlib"
2011 dxv_decoder_select="lzf texturedsp"
2012 eac3_decoder_select="ac3_decoder"
2013 eac3_encoder_select="ac3_encoder"
2014 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2015 eatgq_decoder_select="aandcttables idctdsp"
2016 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2017 exr_decoder_deps="zlib"
2018 ffv1_decoder_select="rangecoder"
2019 ffv1_encoder_select="rangecoder"
2020 ffvhuff_decoder_select="huffyuv_decoder"
2021 ffvhuff_encoder_select="huffyuv_encoder"
2022 fic_decoder_select="golomb"
2023 flac_decoder_select="flacdsp"
2024 flac_encoder_select="bswapdsp flacdsp lpc"
2025 flashsv_decoder_deps="zlib"
2026 flashsv_encoder_deps="zlib"
2027 flashsv2_decoder_deps="zlib"
2028 flv_decoder_select="h263_decoder"
2029 flv_encoder_select="h263_encoder"
2030 fourxm_decoder_select="blockdsp bswapdsp"
2031 fraps_decoder_select="bswapdsp huffman"
2032 g2m_decoder_deps="zlib"
2033 g2m_decoder_select="blockdsp idctdsp jpegtables"
2034 h261_decoder_select="mpeg_er mpegvideo"
2035 h261_encoder_select="aandcttables mpegvideoenc"
2036 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2037 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2038 h263i_decoder_select="h263_decoder"
2039 h263p_encoder_select="h263_encoder"
2040 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2041 h264_decoder_suggest="error_resilience"
2042 hap_decoder_select="snappy texturedsp"
2043 hap_encoder_deps="libsnappy"
2044 hap_encoder_select="texturedspenc"
2045 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2046 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2047 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2048 iac_decoder_select="imc_decoder"
2049 imc_decoder_select="bswapdsp fft mdct sinewin"
2050 indeo3_decoder_select="hpeldsp"
2051 indeo4_decoder_select="ividsp"
2052 indeo5_decoder_select="ividsp"
2053 interplay_video_decoder_select="hpeldsp"
2054 jpegls_decoder_select="mjpeg_decoder"
2055 jv_decoder_select="blockdsp"
2056 lagarith_decoder_select="huffyuvdsp"
2057 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2058 magicyuv_decoder_select="huffyuvdsp"
2059 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2060 metasound_decoder_select="lsp mdct sinewin"
2061 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2062 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2063 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2064 mjpegb_decoder_select="mjpeg_decoder"
2065 mlp_decoder_select="mlp_parser"
2066 motionpixels_decoder_select="bswapdsp"
2067 mp1_decoder_select="mpegaudio"
2068 mp1float_decoder_select="mpegaudio"
2069 mp2_decoder_select="mpegaudio"
2070 mp2float_decoder_select="mpegaudio"
2071 mp3_decoder_select="mpegaudio"
2072 mp3adu_decoder_select="mpegaudio"
2073 mp3adufloat_decoder_select="mpegaudio"
2074 mp3float_decoder_select="mpegaudio"
2075 mp3on4_decoder_select="mpegaudio"
2076 mp3on4float_decoder_select="mpegaudio"
2077 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2078 mpc8_decoder_select="mpegaudiodsp"
2079 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2080 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2081 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2082 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2083 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2084 mpeg4_encoder_select="h263_encoder"
2085 msa1_decoder_select="mss34dsp"
2086 msmpeg4v1_decoder_select="h263_decoder"
2087 msmpeg4v2_decoder_select="h263_decoder"
2088 msmpeg4v2_encoder_select="h263_encoder"
2089 msmpeg4v3_decoder_select="h263_decoder"
2090 msmpeg4v3_encoder_select="h263_encoder"
2091 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2092 mts2_decoder_select="mss34dsp"
2093 mxpeg_decoder_select="mjpeg_decoder"
2094 nellymoser_decoder_select="mdct sinewin"
2095 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2096 nuv_decoder_select="idctdsp lzo"
2097 on2avc_decoder_select="mdct"
2098 opus_decoder_deps="avresample"
2099 opus_decoder_select="imdct15"
2100 png_decoder_deps="zlib"
2101 png_encoder_deps="zlib"
2102 png_encoder_select="huffyuvencdsp"
2103 prores_decoder_select="idctdsp"
2104 prores_encoder_select="fdctdsp"
2105 qcelp_decoder_select="lsp"
2106 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2107 ra_144_encoder_select="audio_frame_queue lpc"
2108 ralf_decoder_select="golomb"
2109 rscc_decoder_deps="zlib"
2110 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2111 rv10_encoder_select="h263_encoder"
2112 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2113 rv20_encoder_select="h263_encoder"
2114 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2115 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2116 screenpresso_decoder_deps="zlib"
2117 sipr_decoder_select="lsp"
2118 sp5x_decoder_select="mjpeg_decoder"
2119 svq1_decoder_select="hpeldsp"
2120 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2121 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2122 svq3_decoder_suggest="zlib"
2123 tak_decoder_select="audiodsp"
2124 tdsc_decoder_deps="zlib"
2125 tdsc_decoder_select="mjpeg_decoder"
2126 theora_decoder_select="vp3_decoder"
2127 thp_decoder_select="mjpeg_decoder"
2128 tiff_decoder_suggest="zlib"
2129 tiff_encoder_suggest="zlib"
2130 truehd_decoder_select="mlp_decoder"
2131 truemotion2_decoder_select="bswapdsp"
2132 truespeech_decoder_select="bswapdsp"
2133 tscc_decoder_deps="zlib"
2134 txd_decoder_select="texturedsp"
2135 twinvq_decoder_select="mdct lsp sinewin"
2136 utvideo_decoder_select="bswapdsp huffyuvdsp"
2137 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2138 vble_decoder_select="huffyuvdsp"
2139 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2140 vc1image_decoder_select="vc1_decoder"
2141 vorbis_decoder_select="mdct"
2142 vorbis_encoder_select="mdct"
2143 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2144 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2145 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2146 vp6a_decoder_select="vp6_decoder"
2147 vp6f_decoder_select="vp6_decoder"
2148 vp7_decoder_select="h264pred videodsp vp8dsp"
2149 vp8_decoder_select="h264pred videodsp vp8dsp"
2150 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2151 webp_decoder_select="vp8_decoder"
2152 wmapro_decoder_select="mdct sinewin wma_freqs"
2153 wmav1_decoder_select="mdct sinewin wma_freqs"
2154 wmav1_encoder_select="mdct sinewin wma_freqs"
2155 wmav2_decoder_select="mdct sinewin wma_freqs"
2156 wmav2_encoder_select="mdct sinewin wma_freqs"
2157 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2158 wmv1_decoder_select="h263_decoder"
2159 wmv1_encoder_select="h263_encoder"
2160 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2161 wmv2_encoder_select="h263_encoder wmv2dsp"
2162 wmv3_decoder_select="vc1_decoder"
2163 wmv3image_decoder_select="wmv3_decoder"
2164 zerocodec_decoder_deps="zlib"
2165 zlib_decoder_deps="zlib"
2166 zlib_encoder_deps="zlib"
2167 zmbv_decoder_deps="zlib"
2168 zmbv_encoder_deps="zlib"
2169
2170 # hardware accelerators
2171 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2172 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2173 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2174 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2175
2176 h263_vaapi_hwaccel_deps="vaapi"
2177 h263_vaapi_hwaccel_select="h263_decoder"
2178 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2179 h264_cuvid_hwaccel_select="h264_decoder"
2180 h264_d3d11va_hwaccel_deps="d3d11va"
2181 h264_d3d11va_hwaccel_select="h264_decoder"
2182 h264_d3d11va2_hwaccel_deps="d3d11va"
2183 h264_d3d11va2_hwaccel_select="h264_decoder"
2184 h264_dxva2_hwaccel_deps="dxva2"
2185 h264_dxva2_hwaccel_select="h264_decoder"
2186 h264_mmal_hwaccel_deps="mmal"
2187 h264_qsv_hwaccel_deps="libmfx"
2188 h264_vaapi_hwaccel_deps="vaapi"
2189 h264_vaapi_hwaccel_select="h264_decoder"
2190 h264_vda_hwaccel_deps="vda"
2191 h264_vda_hwaccel_select="h264_decoder"
2192 h264_vda_old_hwaccel_deps="vda"
2193 h264_vda_old_hwaccel_select="h264_decoder"
2194 h264_vdpau_hwaccel_deps="vdpau"
2195 h264_vdpau_hwaccel_select="h264_decoder"
2196 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2197 hevc_cuvid_hwaccel_select="hevc_decoder"
2198 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2199 hevc_d3d11va_hwaccel_select="hevc_decoder"
2200 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2201 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2202 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2203 hevc_dxva2_hwaccel_select="hevc_decoder"
2204 hevc_qsv_hwaccel_deps="libmfx"
2205 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2206 hevc_vaapi_hwaccel_select="hevc_decoder"
2207 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2208 hevc_vdpau_hwaccel_select="hevc_decoder"
2209 mpeg1_vdpau_hwaccel_deps="vdpau"
2210 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2211 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2212 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2213 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2214 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2215 mpeg2_dxva2_hwaccel_deps="dxva2"
2216 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2217 mpeg2_mmal_hwaccel_deps="mmal"
2218 mpeg2_qsv_hwaccel_deps="libmfx"
2219 mpeg2_vaapi_hwaccel_deps="vaapi"
2220 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2221 mpeg2_vdpau_hwaccel_deps="vdpau"
2222 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2223 mpeg4_vaapi_hwaccel_deps="vaapi"
2224 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2225 mpeg4_vdpau_hwaccel_deps="vdpau"
2226 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2227 vc1_d3d11va_hwaccel_deps="d3d11va"
2228 vc1_d3d11va_hwaccel_select="vc1_decoder"
2229 vc1_d3d11va2_hwaccel_deps="d3d11va"
2230 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2231 vc1_dxva2_hwaccel_deps="dxva2"
2232 vc1_dxva2_hwaccel_select="vc1_decoder"
2233 vc1_mmal_hwaccel_deps="mmal"
2234 vc1_qsv_hwaccel_deps="libmfx"
2235 vc1_vaapi_hwaccel_deps="vaapi"
2236 vc1_vaapi_hwaccel_select="vc1_decoder"
2237 vc1_vdpau_hwaccel_deps="vdpau"
2238 vc1_vdpau_hwaccel_select="vc1_decoder"
2239 vp8_qsv_hwaccel_deps="libmfx"
2240 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2241 vp8_vaapi_hwaccel_select="vp8_decoder"
2242 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2243 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2244 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2245 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2246 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2247
2248 # hardware-accelerated codecs
2249 nvenc_deps_any="libdl LoadLibrary"
2250 omx_deps="libdl pthreads"
2251 omx_rpi_select="omx"
2252 qsv_deps="libmfx"
2253 qsvdec_select="qsv"
2254 qsvenc_select="qsv"
2255 qsvvpp_select="qsv"
2256 vaapi_encode_deps="vaapi"
2257
2258 hwupload_cuda_filter_deps="cuda"
2259 scale_npp_filter_deps="cuda libnpp"
2260
2261 h264_mmal_decoder_deps="mmal"
2262 h264_nvenc_encoder_deps="nvenc"
2263 h264_omx_encoder_deps="omx"
2264 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2265 h264_qsv_encoder_select="qsvenc"
2266 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2267 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2268 hevc_nvenc_encoder_deps="nvenc"
2269 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2270 hevc_qsv_encoder_select="hevcparse qsvenc"
2271 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2272 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2273 mjpeg_qsv_encoder_deps="libmfx"
2274 mjpeg_qsv_encoder_select="qsvenc"
2275 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2276 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2277 mpeg2_mmal_decoder_deps="mmal"
2278 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2279 mpeg2_qsv_encoder_select="qsvenc"
2280 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2281 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2282 mpeg4_omx_encoder_deps="omx"
2283 vc1_mmal_decoder_deps="mmal"
2284 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2285 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2286 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2287 vp8_vaapi_encoder_select="vaapi_encode"
2288 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2289 vp9_vaapi_encoder_select="vaapi_encode"
2290
2291 nvenc_h264_encoder_select="h264_nvenc_encoder"
2292 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2293
2294 # parsers
2295 aac_parser_select="adts_header"
2296 h264_parser_select="golomb h264dsp h264parse"
2297 hevc_parser_select="hevcparse"
2298 mpegaudio_parser_select="mpegaudioheader"
2299 mpegvideo_parser_select="mpegvideo"
2300 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2301 vc1_parser_select="vc1dsp"
2302
2303 # bitstream_filters
2304 aac_adtstoasc_bsf_select="adts_header"
2305 h264_metadata_bsf_select="cbs_h264"
2306 h264_redundant_pps_bsf_select="cbs_h264"
2307 hevc_metadata_bsf_select="cbs_h265"
2308 mjpeg2jpeg_bsf_select="jpegtables"
2309 mpeg2_metadata_bsf_select="cbs_mpeg2"
2310 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2311
2312 # external libraries
2313 avisynth_deps="LoadLibrary"
2314 avxsynth_deps="libdl"
2315 avisynth_demuxer_deps_any="avisynth avxsynth"
2316 avisynth_demuxer_select="riffdec"
2317 libdcadec_decoder_deps="libdcadec"
2318 libfaac_encoder_deps="libfaac"
2319 libfaac_encoder_select="audio_frame_queue"
2320 libfdk_aac_decoder_deps="libfdk_aac"
2321 libfdk_aac_encoder_deps="libfdk_aac"
2322 libfdk_aac_encoder_select="audio_frame_queue"
2323 libgsm_decoder_deps="libgsm"
2324 libgsm_encoder_deps="libgsm"
2325 libgsm_ms_decoder_deps="libgsm"
2326 libgsm_ms_encoder_deps="libgsm"
2327 libilbc_decoder_deps="libilbc"
2328 libilbc_encoder_deps="libilbc"
2329 libkvazaar_encoder_deps="libkvazaar"
2330 libmp3lame_encoder_deps="libmp3lame"
2331 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2332 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2333 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2334 libopencore_amrnb_encoder_select="audio_frame_queue"
2335 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2336 libopenh264_decoder_deps="libopenh264"
2337 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2338 libopenh264_encoder_deps="libopenh264"
2339 libopenjpeg_decoder_deps="libopenjpeg"
2340 libopenjpeg_encoder_deps="libopenjpeg"
2341 libopus_decoder_deps="libopus"
2342 libopus_encoder_deps="libopus"
2343 libopus_encoder_select="audio_frame_queue"
2344 libschroedinger_decoder_deps="libschroedinger"
2345 libschroedinger_encoder_deps="libschroedinger"
2346 libspeex_decoder_deps="libspeex"
2347 libspeex_encoder_deps="libspeex"
2348 libspeex_encoder_select="audio_frame_queue"
2349 libtheora_encoder_deps="libtheora"
2350 libtwolame_encoder_deps="libtwolame"
2351 libvo_aacenc_encoder_deps="libvo_aacenc"
2352 libvo_aacenc_encoder_select="audio_frame_queue"
2353 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2354 libvorbis_encoder_deps="libvorbis"
2355 libvorbis_encoder_select="audio_frame_queue"
2356 libvpx_vp8_decoder_deps="libvpx"
2357 libvpx_vp8_encoder_deps="libvpx"
2358 libvpx_vp9_decoder_deps="libvpx"
2359 libvpx_vp9_encoder_deps="libvpx"
2360 libwavpack_encoder_deps="libwavpack"
2361 libwavpack_encoder_select="audio_frame_queue"
2362 libwebp_encoder_deps="libwebp"
2363 libx262_encoder_deps="libx262"
2364 libx264_encoder_deps="libx264"
2365 libx265_encoder_deps="libx265"
2366 libxavs_encoder_deps="libxavs"
2367 libxvid_encoder_deps="libxvid mkstemp"
2368
2369 # demuxers / muxers
2370 ac3_demuxer_select="ac3_parser"
2371 asf_demuxer_select="riffdec"
2372 asf_muxer_select="riffenc"
2373 asf_stream_muxer_select="asf_muxer"
2374 avi_demuxer_select="iso_media riffdec"
2375 avi_muxer_select="riffenc"
2376 caf_demuxer_select="iso_media riffdec"
2377 dash_muxer_select="mp4_muxer"
2378 dirac_demuxer_select="dirac_parser"
2379 dv_demuxer_select="dvprofile"
2380 dv_muxer_select="dvprofile"
2381 dxa_demuxer_select="riffdec"
2382 eac3_demuxer_select="ac3_parser"
2383 f4v_muxer_select="mov_muxer"
2384 flac_demuxer_select="flac_parser"
2385 hds_muxer_select="flv_muxer"
2386 hls_muxer_select="mpegts_muxer"
2387 ipod_muxer_select="mov_muxer"
2388 ismv_muxer_select="mov_muxer"
2389 matroska_audio_muxer_select="matroska_muxer"
2390 matroska_demuxer_select="iso_media riffdec"
2391 matroska_demuxer_suggest="bzlib lzo zlib"
2392 matroska_muxer_select="iso_media riffenc"
2393 mmf_muxer_select="riffenc"
2394 mov_demuxer_select="iso_media riffdec"
2395 mov_demuxer_suggest="zlib"
2396 mov_muxer_select="iso_media riffenc rtpenc_chain"
2397 mp3_demuxer_select="mpegaudio_parser"
2398 mp3_muxer_select="mpegaudioheader"
2399 mp4_muxer_select="mov_muxer"
2400 mpegts_demuxer_select="iso_media"
2401 mpegts_muxer_select="adts_muxer latm_muxer"
2402 mpegtsraw_demuxer_select="mpegts_demuxer"
2403 mxf_d10_muxer_select="mxf_muxer"
2404 nut_muxer_select="riffenc"
2405 nuv_demuxer_select="riffdec"
2406 oga_muxer_select="ogg_muxer"
2407 ogg_demuxer_select="dirac_parse"
2408 opus_muxer_select="ogg_muxer"
2409 psp_muxer_select="mov_muxer"
2410 rtp_demuxer_select="sdp_demuxer"
2411 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2412 rtsp_demuxer_select="http_protocol rtpdec"
2413 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2414 sap_demuxer_select="sdp_demuxer"
2415 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2416 sdp_demuxer_select="rtpdec"
2417 smoothstreaming_muxer_select="ismv_muxer"
2418 spdif_demuxer_select="adts_header"
2419 spdif_muxer_select="adts_header"
2420 spx_muxer_select="ogg_muxer"
2421 swf_demuxer_suggest="zlib"
2422 tak_demuxer_select="tak_parser"
2423 tg2_muxer_select="mov_muxer"
2424 tgp_muxer_select="mov_muxer"
2425 w64_demuxer_select="wav_demuxer"
2426 wav_demuxer_select="riffdec"
2427 wav_muxer_select="riffenc"
2428 webm_muxer_select="iso_media riffenc"
2429 wtv_demuxer_select="mpegts_demuxer riffdec"
2430 xmv_demuxer_select="riffdec"
2431 xwma_demuxer_select="riffdec"
2432
2433 # indevs
2434 alsa_indev_deps="alsa"
2435 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2436 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2437 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2438 fbdev_indev_deps="linux_fb_h"
2439 jack_indev_deps="libjack"
2440 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2441 libcdio_indev_deps="libcdio"
2442 libdc1394_indev_deps="libdc1394"
2443 oss_indev_deps_any="sys_soundcard_h"
2444 pulse_indev_deps="libpulse"
2445 sndio_indev_deps="sndio"
2446 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2447 vfwcap_indev_deps="vfw32 vfwcap_defines"
2448 xcbgrab_indev_deps="libxcb libxcb_shape"
2449 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2450
2451 # protocols
2452 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2453 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2454 ffrtmpcrypt_protocol_select="tcp_protocol"
2455 ffrtmphttp_protocol_conflict="librtmp_protocol"
2456 ffrtmphttp_protocol_select="http_protocol"
2457 gopher_protocol_select="network"
2458 http_protocol_select="tcp_protocol"
2459 http_protocol_suggest="zlib"
2460 httpproxy_protocol_select="tcp_protocol"
2461 httpproxy_protocol_suggest="zlib"
2462 https_protocol_select="tls_protocol"
2463 https_protocol_suggest="zlib"
2464 icecast_protocol_select="http_protocol"
2465 librtmp_protocol_deps="librtmp"
2466 librtmpe_protocol_deps="librtmp"
2467 librtmps_protocol_deps="librtmp"
2468 librtmpt_protocol_deps="librtmp"
2469 librtmpte_protocol_deps="librtmp"
2470 mmsh_protocol_select="http_protocol"
2471 mmst_protocol_select="network"
2472 rtmp_protocol_conflict="librtmp_protocol"
2473 rtmp_protocol_select="tcp_protocol"
2474 rtmp_protocol_suggest="zlib"
2475 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2476 rtmpe_protocol_suggest="zlib"
2477 rtmps_protocol_conflict="librtmp_protocol"
2478 rtmps_protocol_select="tls_protocol"
2479 rtmps_protocol_suggest="zlib"
2480 rtmpt_protocol_select="ffrtmphttp_protocol"
2481 rtmpt_protocol_suggest="zlib"
2482 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2483 rtmpte_protocol_suggest="zlib"
2484 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2485 rtmpts_protocol_suggest="zlib"
2486 rtp_protocol_select="udp_protocol"
2487 sctp_protocol_deps="struct_sctp_event_subscribe"
2488 sctp_protocol_select="network"
2489 srtp_protocol_select="rtp_protocol srtp"
2490 tcp_protocol_select="network"
2491 tls_protocol_deps_any="gnutls openssl"
2492 tls_protocol_select="tcp_protocol"
2493 udp_protocol_select="network"
2494 unix_protocol_deps="sys_un_h"
2495 unix_protocol_select="network"
2496
2497 # filters
2498 asyncts_filter_deps="avresample"
2499 blackframe_filter_deps="gpl"
2500 boxblur_filter_deps="gpl"
2501 bs2b_filter_deps="libbs2b"
2502 cropdetect_filter_deps="gpl"
2503 deinterlace_qsv_filter_deps="libmfx"
2504 deinterlace_vaapi_filter_deps="vaapi"
2505 delogo_filter_deps="gpl"
2506 drawtext_filter_deps="libfreetype"
2507 drawtext_filter_suggest="libfontconfig"
2508 frei0r_filter_deps="frei0r libdl"
2509 frei0r_src_filter_deps="frei0r libdl"
2510 hdcd_filter_deps="libhdcd"
2511 hqdn3d_filter_deps="gpl"
2512 interlace_filter_deps="gpl"
2513 movie_filter_deps="avcodec avformat"
2514 ocv_filter_deps="libopencv"
2515 overlay_qsv_filter_deps="libmfx"
2516 overlay_qsv_filter_select="qsvvpp"
2517 resample_filter_deps="avresample"
2518 scale_filter_deps="swscale"
2519 scale_qsv_filter_deps="libmfx"
2520 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2521 vpp_qsv_filter_deps="libmfx"
2522 vpp_qsv_filter_select="qsvvpp"
2523
2524 # examples
2525 decode_audio_example_deps="avcodec avutil"
2526 decode_video_example_deps="avcodec avutil"
2527 encode_audio_example_deps="avcodec avutil"
2528 encode_video_example_deps="avcodec avutil"
2529 filter_audio_example_deps="avfilter avutil"
2530 metadata_example_deps="avformat avutil"
2531 output_example_deps="avcodec avformat avresample avutil swscale"
2532 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2533 transcode_aac_example_deps="avcodec avformat avresample"
2534
2535 # EXTRALIBS_LIST
2536 cpu_init_extralibs="pthreads_extralibs"
2537 cws2fws_extralibs="zlib_extralibs"
2538
2539 # libraries, in linking order
2540 avcodec_deps="avutil"
2541 avcodec_select="null_bsf"
2542 avdevice_deps="avformat avcodec avutil"
2543 avfilter_deps="avutil"
2544 avformat_deps="avcodec avutil"
2545 avformat_suggest="network"
2546 avresample_deps="avutil"
2547 swscale_deps="avutil"
2548
2549 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2550 avdevice_extralibs="libm_extralibs"
2551 avformat_extralibs="libm_extralibs"
2552 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2553 avresample_extralibs="libm_extralibs"
2554 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2555 swscale_extralibs="libm_extralibs"
2556
2557 # programs
2558 avconv_deps="avcodec avfilter avformat avresample swscale"
2559 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2560 fps_filter null_filter resample_filter scale_filter
2561 trim_filter"
2562 avconv_suggest="psapi shell32"
2563 avplay_deps="avcodec avfilter avformat avresample sdl"
2564 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2565 avplay_suggest="shell32"
2566 avprobe_deps="avcodec avformat"
2567 avprobe_suggest="shell32"
2568
2569 # documentation
2570 pod2man_deps="doc"
2571 texi2html_deps="doc"
2572
2573 # default parameters
2574
2575 logfile="avbuild/config.log"
2576
2577 # installation paths
2578 prefix_default="/usr/local"
2579 bindir_default='${prefix}/bin'
2580 datadir_default='${prefix}/share/avconv'
2581 docdir_default='${prefix}/share/doc/libav'
2582 incdir_default='${prefix}/include'
2583 libdir_default='${prefix}/lib'
2584 mandir_default='${prefix}/share/man'
2585 shlibdir_default="$libdir_default"
2586
2587 # toolchain
2588 ar_default="ar"
2589 cc_default="gcc"
2590 host_cc_default="gcc"
2591 x86asmexe_default="nasm"
2592 ln_s="ln -s -f"
2593 nm_default="nm -g"
2594 pkg_config_default=pkg-config
2595 ranlib="ranlib"
2596 strip="strip"
2597 version_script='--version-script'
2598 objformat="elf32"
2599
2600 # machine
2601 arch_default=$(uname -m)
2602 cpu="generic"
2603 intrinsics="none"
2604
2605 # OS
2606 target_os_default=$(tolower $(uname -s))
2607 host_os=$target_os_default
2608
2609 # configurable options
2610 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2611
2612 enable asm
2613 enable debug
2614 enable doc
2615 enable faan faandct faanidct
2616 enable optimizations
2617 enable safe_bitstream_reader
2618 enable static
2619 enable swscale_alpha
2620 enable valgrind_backtrace
2621
2622 # By default, enable only those hwaccels that have no external dependencies.
2623 enable d3d11va dxva2 vda vdpau
2624
2625 # internal components are enabled by default
2626 enable $EXTRALIBS_LIST
2627
2628 # Avoid external, non-system, libraries getting enabled by dependency resolution
2629 disable $EXTERNAL_LIBRARY_LIST
2630
2631 # build settings
2632 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2633 LIBPREF="lib"
2634 LIBSUF=".a"
2635 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2636 SLIBPREF="lib"
2637 SLIBSUF=".so"
2638 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2639 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2640 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2641 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2642 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2643 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2644 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2645
2646 asflags_filter=echo
2647 cflags_filter=echo
2648 ldflags_filter=echo
2649
2650 AS_C='-c'
2651 AS_O='-o $@'
2652 CC_C='-c'
2653 CC_E='-E -o $@'
2654 CC_O='-o $@'
2655 OBJCC_C='-c'
2656 OBJCC_E='-E -o $@'
2657 OBJCC_O='-o $@'
2658 X86ASM_O='-o $@'
2659 LD_O='-o $@'
2660 LD_LIB='-l%'
2661 LD_PATH='-L'
2662 HOSTCC_C='-c'
2663 HOSTCC_E='-E -o $@'
2664 HOSTCC_O='-o $@'
2665 HOSTLD_O='-o $@'
2666
2667 host_extralibs='-lm'
2668 host_cflags_filter=echo
2669 host_ldflags_filter=echo
2670
2671 target_path='$(CURDIR)'
2672
2673 # since the object filename is not given with the -MM flag, the compiler
2674 # is only able to print the basename, and we must add the path ourselves
2675 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2676 DEPFLAGS='-MM'
2677
2678 mkdir -p avbuild
2679
2680 # find source path
2681 if test -f configure; then
2682 source_path=.
2683 else
2684 source_path=$(cd $(dirname "$0"); pwd)
2685 echo "$source_path" | grep -q '[[:blank:]]' &&
2686 die "Out of tree builds are impossible with whitespace in source path."
2687 test -e "$source_path/config.h" &&
2688 die "Out of tree builds are impossible with config.h in source dir."
2689 fi
2690
2691 for v in "$@"; do
2692 r=${v#*=}
2693 l=${v%"$r"}
2694 r=$(sh_quote "$r")
2695 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2696 done
2697
2698 find_things(){
2699 thing=$1
2700 pattern=$2
2701 file=$source_path/$3
2702 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2703 }
2704
2705 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2706 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2707 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2708 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2709 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2710 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2711 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2712 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2713
2714 find_things_extern(){
2715 thing=$1
2716 pattern=$2
2717 file=$source_path/$3
2718 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2719 }
2720
2721 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2722 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2723
2724 AVCODEC_COMPONENTS_LIST="
2725 $BSF_LIST
2726 $DECODER_LIST
2727 $ENCODER_LIST
2728 $HWACCEL_LIST
2729 $PARSER_LIST
2730 "
2731
2732 AVDEVICE_COMPONENTS_LIST="
2733 $INDEV_LIST
2734 "
2735
2736 AVFILTER_COMPONENTS_LIST="
2737 $FILTER_LIST
2738 "
2739
2740 AVFORMAT_COMPONENTS_LIST="
2741 $DEMUXER_LIST
2742 $MUXER_LIST
2743 $PROTOCOL_LIST
2744 "
2745
2746 ALL_COMPONENTS="
2747 $AVCODEC_COMPONENTS_LIST
2748 $AVDEVICE_COMPONENTS_LIST
2749 $AVFILTER_COMPONENTS_LIST
2750 $AVFORMAT_COMPONENTS_LIST
2751 "
2752
2753 for n in $COMPONENT_LIST; do
2754 v=$(toupper ${n%s})_LIST
2755 eval enable \$$v
2756 eval ${n}_if_any="\$$v"
2757 done
2758
2759 enable $ARCH_EXT_LIST
2760
2761 die_unknown(){
2762 echo "Unknown option \"$1\"."
2763 echo "See $0 --help for available options."
2764 exit 1
2765 }
2766
2767 print_3_columns() {
2768 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2769 }
2770
2771 show_list() {
2772 suffix=_$1
2773 shift
2774 echo $* | sed s/$suffix//g | print_3_columns
2775 exit 0
2776 }
2777
2778 for opt do
2779 optval="${opt#*=}"
2780 case "$opt" in
2781 --extra-ldflags=*)
2782 add_ldflags $optval
2783 ;;
2784 --extra-ldexeflags=*)
2785 add_ldexeflags $optval
2786 ;;
2787 --extra-ldsoflags=*)
2788 add_ldsoflags $optval
2789 ;;
2790 --extra-libs=*)
2791 add_extralibs $optval
2792 ;;
2793 --disable-devices)
2794 disable $INDEV_LIST
2795 ;;
2796 --enable-debug=*)
2797 debuglevel="$optval"
2798 ;;
2799 --disable-programs)
2800 disable $PROGRAM_LIST
2801 ;;
2802 --disable-everything)
2803 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2804 ;;
2805 --disable-all)
2806 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2807 disable $LIBRARY_LIST $PROGRAM_LIST doc
2808 ;;
2809 --enable-*=*|--disable-*=*)
2810 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2811 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2812 eval list=\$$(toupper $thing)_LIST
2813 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2814 $action $(filter "$name" $list)
2815 ;;
2816 --enable-yasm|--disable-yasm)
2817 warn "The ${opt} option is only provided for compatibility and will be\n"\
2818 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2819 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2820 ;;
2821 --enable-?*|--disable-?*)
2822 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2823 if is_in $option $COMPONENT_LIST; then
2824 test $action = disable && action=unset
2825 eval $action \$$(toupper ${option%s})_LIST
2826 elif is_in $option $CMDLINE_SELECT; then
2827 $action $option
2828 else
2829 die_unknown $opt
2830 fi
2831 ;;
2832 --list-*)
2833 NAME="${opt#--list-}"
2834 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2835 NAME=${NAME%s}
2836 eval show_list $NAME \$$(toupper $NAME)_LIST
2837 ;;
2838 --help|-h) show_help
2839 ;;
2840 --quiet|-q) quiet=yes
2841 ;;
2842 *)
2843 optname="${opt%%=*}"
2844 optname="${optname#--}"
2845 optname=$(echo "$optname" | sed 's/-/_/g')
2846 if is_in $optname $CMDLINE_SET; then
2847 eval $optname='$optval'
2848 elif is_in $optname $CMDLINE_APPEND; then
2849 append $optname "$optval"
2850 else
2851 die_unknown $opt
2852 fi
2853 ;;
2854 esac
2855 done
2856
2857 for e in $env; do
2858 eval "export $e"
2859 done
2860
2861 disabled logging && logfile=/dev/null
2862
2863 # command line configuration sanity checks
2864
2865 # we need to build at least one lib type
2866 if ! enabled_any static shared; then
2867 cat <<EOF
2868 At least one library type must be built.
2869 Specify --enable-static to build the static libraries or --enable-shared to
2870 build the shared libraries as well. To only build the shared libraries specify
2871 --disable-static in addition to --enable-shared.
2872 EOF
2873 exit 1
2874 fi
2875
2876 # Die early if licensing-related configure options are incompatible.
2877 die_license_disabled() {
2878 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2879 }
2880
2881 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2882 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2883 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2884
2885 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2886
2887 enabled_all gnutls openssl &&
2888 die "GnuTLS and OpenSSL must not be enabled at the same time."
2889
2890 # Disable all the library-specific components if the library itself
2891 # is disabled, see AVCODEC_LIST and following _LIST variables.
2892
2893 disable_components(){
2894 disabled ${1} && disable $(
2895 eval components="\$$(toupper ${1})_COMPONENTS"
2896 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2897 )
2898 }
2899
2900 map 'disable_components $v' $LIBRARY_LIST
2901
2902 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2903 set >> $logfile
2904
2905 case "$toolchain" in
2906 *-asan)
2907 cc_default="${toolchain%-asan}"
2908 add_cflags -fsanitize=address
2909 add_ldflags -fsanitize=address
2910 ;;
2911 *-msan)
2912 cc_default="${toolchain%-msan}"
2913 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2914 add_ldflags -fsanitize=memory
2915 ;;
2916 *-tsan)
2917 cc_default="${toolchain%-tsan}"
2918 add_cflags -fsanitize=thread -fPIE
2919 add_ldflags -fsanitize=thread -pie
2920 case "$toolchain" in
2921 gcc-tsan)
2922 add_cflags -fPIC
2923 add_ldflags -fPIC
2924 ;;
2925 esac
2926 ;;
2927 *-usan)
2928 cc_default="${toolchain%-usan}"
2929 add_cflags -fsanitize=undefined
2930 add_ldflags -fsanitize=undefined
2931 case "$toolchain" in
2932 clang-usan)
2933 add_cflags -O1
2934 ;;
2935 esac
2936 ;;
2937 valgrind-*)
2938 target_exec_default="valgrind"
2939 case "$toolchain" in
2940 valgrind-massif)
2941 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2942 ;;
2943 valgrind-memcheck)
2944 target_exec_args="--track-origins=yes --leak-check=full"
2945 ;;
2946 esac
2947 ;;
2948 msvc)
2949 # Check whether the current MSVC version needs the C99 converter.
2950 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2951 # support enough of C99 to build libav. Default to the new
2952 # behaviour if the regexp was unable to match anything, since this
2953 # successfully parses the version number of existing supported
2954 # versions that require the converter (MSVC 2010 and 2012).
2955 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2956 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2957 cc_default="cl"
2958 else
2959 cc_default="c99wrap cl"
2960 fi
2961 ld_default="$source_path/compat/windows/mslink"
2962 nm_default="dumpbin -symbols"
2963 ar_default="lib"
2964 case "$arch" in
2965 aarch64|arm64)
2966 as_default="armasm64"
2967 ;;
2968 arm*)
2969 as_default="armasm"
2970 ;;
2971 esac
2972 target_os_default="win32"
2973 # Use a relative path for TMPDIR. This makes sure all the
2974 # ffconf temp files are written with a relative path, avoiding
2975 # issues with msys/win32 path conversion for MSVC parameters
2976 # such as -Fo<file> or -out:<file>.
2977 TMPDIR=.
2978 ;;
2979 icl)
2980 cc_default="icl"
2981 ld_default="xilink"
2982 nm_default="dumpbin -symbols"
2983 ar_default="xilib"
2984 target_os_default="win32"
2985 TMPDIR=.
2986 ;;
2987 gcov)
2988 add_cflags -fprofile-arcs -ftest-coverage
2989 add_ldflags -fprofile-arcs -ftest-coverage
2990 ;;
2991 llvm-cov)
2992 add_cflags -fprofile-arcs -ftest-coverage
2993 add_ldflags --coverage
2994 ;;
2995 hardened)
2996 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2997 add_cflags -fno-strict-overflow -fstack-protector-all
2998 add_ldflags -Wl,-z,relro -Wl,-z,now
2999 ;;
3000 ?*)
3001 die "Unknown toolchain $toolchain"
3002 ;;
3003 esac
3004
3005 if test -n "$cross_prefix"; then
3006 test -n "$arch" && test -n "$target_os" ||
3007 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3008 enable cross_compile
3009 fi
3010
3011 ar_default="${cross_prefix}${ar_default}"
3012 cc_default="${cross_prefix}${cc_default}"
3013 objcc_default="${cross_prefix}${objcc_default}"
3014 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3015 nm_default="${cross_prefix}${nm_default}"
3016 pkg_config_default="${cross_prefix}${pkg_config_default}"
3017 ranlib="${cross_prefix}${ranlib}"
3018 strip="${cross_prefix}${strip}"
3019
3020 sysinclude_default="${sysroot}/usr/include"
3021
3022 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3023 enabled cross_compile || host_cc_default=$cc
3024 set_default host_cc
3025
3026 if ! $pkg_config --version >/dev/null 2>&1; then
3027 warn "$pkg_config not found, library detection may fail."
3028 pkg_config=false
3029 fi
3030
3031 exesuf() {
3032 case $1 in
3033 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3034 esac
3035 }
3036
3037 EXESUF=$(exesuf $target_os)
3038 HOSTEXESUF=$(exesuf $host_os)
3039
3040 # set temporary file name
3041 : ${TMPDIR:=$TEMPDIR}
3042 : ${TMPDIR:=$TMP}
3043 : ${TMPDIR:=/tmp}
3044
3045 if ! check_cmd mktemp -u XXXXXX; then
3046 # simple replacement for missing mktemp
3047 # NOT SAFE FOR GENERAL USE
3048 mktemp(){
3049 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3050 echo "$tmpname"
3051 mkdir "$tmpname"
3052 }
3053 fi
3054
3055 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3056 die "Unable to create temporary directory in $TMPDIR."
3057
3058 tmpfile(){
3059 tmp="${AVTMPDIR}/test"$2
3060 (set -C; exec > $tmp) 2> /dev/null ||
3061 die "Unable to create temporary file in $AVTMPDIR."
3062 eval $1=$tmp
3063 }
3064
3065 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3066 trap 'exit 2' INT
3067
3068 tmpfile TMPASM .asm
3069 tmpfile TMPC .c
3070 tmpfile TMPE $EXESUF
3071 tmpfile TMPH .h
3072 tmpfile TMPO .o
3073 tmpfile TMPS .S
3074 tmpfile TMPSH .sh
3075 tmpfile TMPV .ver
3076
3077 unset -f mktemp
3078
3079 chmod +x $TMPE
3080
3081 # make sure we can execute files in $TMPDIR
3082 cat > $TMPSH 2>> $logfile <<EOF
3083 #! /bin/sh
3084 EOF
3085 chmod +x $TMPSH >> $logfile 2>&1
3086 if ! $TMPSH >> $logfile 2>&1; then
3087 cat <<EOF
3088 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3089 variable to another directory and make sure that it is not mounted noexec.
3090 EOF
3091 die "Sanity test failed."
3092 fi
3093
3094 armasm_flags(){
3095 for flag; do
3096 case $flag in
3097 # Filter out MSVC cl.exe options from cflags that shouldn't
3098 # be passed to gas-preprocessor
3099 -M[TD]*) ;;
3100 *) echo $flag ;;
3101 esac
3102 done
3103 }
3104
3105 cparser_flags(){
3106 for flag; do
3107 case $flag in
3108 -Wno-switch) echo -Wno-switch-enum ;;
3109 -Wno-format-zero-length) ;;
3110 -Wdisabled-optimization) ;;
3111 -Wno-pointer-sign) echo -Wno-other ;;
3112 *) echo $flag ;;
3113 esac
3114 done
3115 }
3116
3117 msvc_common_flags(){
3118 for flag; do
3119 case $flag in
3120 # In addition to specifying certain flags under the compiler
3121 # specific filters, they must be specified here as well or else the
3122 # generic catch all at the bottom will print the original flag.
3123 -Wall) ;;
3124 -Wextra) ;;
3125 -std=c99) ;;
3126 # Common flags
3127 -fomit-frame-pointer) ;;
3128 -g) echo -Z7 ;;
3129 -fno-math-errno) ;;
3130 -fno-common) ;;
3131 -fno-signed-zeros) ;;
3132 -fPIC) ;;
3133 -mthumb) ;;
3134 -march=*) ;;
3135 -lz) echo zlib.lib ;;
3136 -lx264) echo libx264.lib ;;
3137 -l*) echo ${flag#-l}.lib ;;
3138 -L*) echo -libpath:${flag#-L} ;;
3139 *) echo $flag ;;
3140 esac
3141 done
3142 }
3143
3144 msvc_flags(){
3145 msvc_common_flags "$@"
3146 for flag; do
3147 case $flag in
3148 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3149 -wd4554 ;;
3150 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3151 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3152 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3153 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3154 esac
3155 done
3156 }
3157
3158 icl_flags(){
3159 msvc_common_flags "$@"
3160 for flag; do
3161 case $flag in
3162 # Despite what Intel's documentation says -Wall, which is supported
3163 # on Windows, does enable remarks so disable them here.
3164 -Wall) echo $flag -Qdiag-disable:remark ;;
3165 -std=c99) echo -Qstd=c99 ;;
3166 esac
3167 done
3168 }
3169
3170 suncc_flags(){
3171 for flag; do
3172 case $flag in
3173 -march=*|-mcpu=*)
3174 case "${flag#*=}" in
3175 native) echo -xtarget=native ;;
3176 v9|niagara) echo -xarch=sparc ;;
3177 ultrasparc) echo -xarch=sparcvis ;;
3178 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3179 i586|pentium) echo -xchip=pentium ;;
3180 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3181 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3182 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3183 pentium4*) echo -xtarget=pentium4 ;;
3184 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3185 *-sse3) echo -xarch=sse3 ;;
3186 core2) echo -xarch=ssse3 -xchip=core2 ;;
3187 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3188 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3189 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3190 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3191 k8|opteron|athlon64|athlon-fx)
3192 echo -xarch=sse2a ;;
3193 athlon*) echo -xarch=pentium_proa ;;
3194 esac
3195 ;;
3196 -std=c99) echo -xc99 ;;
3197 -fomit-frame-pointer) echo -xregs=frameptr ;;
3198 -fPIC) echo -KPIC -xcode=pic32 ;;
3199 -W*,*) echo $flag ;;
3200 -f*-*|-W*|-mimpure-text) ;;
3201 -shared) echo -G ;;
3202 *) echo $flag ;;
3203 esac
3204 done
3205 }
3206
3207 probe_cc(){
3208 pfx=$1
3209 _cc=$2
3210
3211 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3212 unset _ld_o _ldflags _ld_lib _ld_path
3213 unset _depflags _DEPCMD _DEPFLAGS
3214 _flags_filter=echo
3215
3216 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3217 _type=llvm_gcc
3218 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3219 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3220 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3221 _cflags_speed='-O3'
3222 _cflags_size='-Os'
3223 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3224 _type=gcc
3225 gcc_version=$($_cc --version | head -n1)
3226 gcc_basever=$($_cc -dumpversion)
3227 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3228 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3229 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3230 if ! $_cc -dumpversion | grep -q '^2\.'; then
3231 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3232 fi
3233 _cflags_speed='-O3'
3234 _cflags_size='-Os'
3235 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3236 _type=icc
3237 _ident=$($_cc --version | head -n1)
3238 _depflags='-MMD'
3239 _cflags_speed='-O3'
3240 _cflags_size='-Os'
3241 _cflags_noopt='-O1'
3242 elif $_cc -v 2>&1 | grep -q xlc; then
3243 _type=xlc
3244 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3245 _cflags_speed='-O5'
3246 _cflags_size='-O5 -qcompact'
3247 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3248 test -d "$sysroot" || die "No valid sysroot specified."
3249 _type=armcc
3250 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3251 armcc_conf="$PWD/armcc.conf"
3252 $_cc --arm_linux_configure \
3253 --arm_linux_config_file="$armcc_conf" \
3254 --configure_sysroot="$sysroot" \
3255 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3256 die "Error creating armcc configuration file."
3257 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3258 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3259 as_default="${cross_prefix}gcc"
3260 _depflags='-MMD'
3261 _cflags_speed='-O3'
3262 _cflags_size='-Os'
3263 elif $_cc -v 2>&1 | grep -q clang; then
3264 _type=clang
3265 _ident=$($_cc --version 2>/dev/null | head -n1)
3266 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3267 _cflags_speed='-O3'
3268 _cflags_size='-Os'
3269 elif $_cc -V 2>&1 | grep -q Sun; then
3270 _type=suncc
3271 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3272 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3273 _DEPFLAGS='-xM1 -xc99'
3274 _ldflags='-std=c99'
3275 _cflags_speed='-O5'
3276 _cflags_size='-O5 -xspace'
3277 _flags_filter=suncc_flags
3278 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3279 _type=pathscale
3280 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3281 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3282 _cflags_speed='-O2'
3283 _cflags_size='-Os'
3284 _flags_filter='filter_out -Wdisabled-optimization'
3285 elif $_cc -v 2>&1 | grep -q Open64; then
3286 _type=open64
3287 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3288 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3289 _cflags_speed='-O2'
3290 _cflags_size='-Os'
3291 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3292 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3293 _type=armasm
3294 _ident=$($_cc | head -n1)
3295 # 4509: "This form of conditional instruction is deprecated"
3296 _flags="-nologo -ignore 4509"
3297 _flags_filter=armasm_flags
3298 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3299 _type=msvc
3300 _ident=$($_cc 2>&1 | head -n1)
3301 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3302 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3303 _cflags_speed="-O2"
3304 _cflags_size="-O1"
3305 _cflags_noopt="-O1"
3306 if $_cc -nologo- 2>&1 | grep -q Linker; then
3307 _ld_o='-out:$@'
3308 else
3309 _ld_o='-Fe$@'
3310 fi
3311 _cc_o='-Fo$@'
3312 _cc_e='-P -Fi$@'
3313 _flags_filter=msvc_flags
3314 _ld_lib='lib%.a'
3315 _ld_path='-libpath:'
3316 _flags='-nologo'
3317 elif $_cc 2>&1 | grep -q Intel; then
3318 _type=icl
3319 _ident=$($_cc 2>&1 | head -n1)
3320 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3321 # Not only is O3 broken on 13.x+ but it is slower on all previous
3322 # versions (tested) as well.
3323 _cflags_speed="-O2"
3324 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3325 if $_cc 2>&1 | grep -q Linker; then
3326 _ld_o='-out:$@'
3327 else
3328 _ld_o='-Fe$@'
3329 fi
3330 _cc_o='-Fo$@'
3331 _cc_e='-P'
3332 _flags_filter=icl_flags
3333 _ld_lib='lib%.a'
3334 _ld_path='-libpath:'
3335 # -Qdiag-error to make icl error when seeing certain unknown arguments
3336 _flags='-nologo -Qdiag-error:4044,10157'
3337 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3338 # with MSVC which enables it by default.
3339 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3340 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3341 # lld can emulate multiple different linkers; in ms link.exe mode,
3342 # the -? parameter gives the help output which contains an identifyable
3343 # string, while it gives an error in other modes.
3344 _type=lld-link
3345 # The link.exe mode doesn't have a switch for getting the version,
3346 # but we can force it back to gnu mode and get the version from there.
3347 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3348 _ld_o='-out:$@'
3349 _flags_filter=msvc_flags
3350 _ld_lib='lib%.a'
3351 _ld_path='-libpath:'
3352 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3353 _type=cparser
3354 _ident=$($_cc --version | head -n1)
3355 _depflags='-MMD'
3356 _cflags_speed='-O4'
3357 _cflags_size='-O2'
3358 _flags_filter=cparser_flags
3359 fi
3360
3361 eval ${pfx}_type=\$_type
3362 eval ${pfx}_ident=\$_ident
3363 }
3364
3365 set_ccvars(){
3366 eval ${1}_C=\${_cc_c-\${${1}_C}}
3367 eval ${1}_E=\${_cc_e-\${${1}_E}}
3368 eval ${1}_O=\${_cc_o-\${${1}_O}}
3369
3370 if [ -n "$_depflags" ]; then
3371 eval ${1}_DEPFLAGS=\$_depflags
3372 else
3373 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3374 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3375 eval DEP${1}FLAGS=\$_flags
3376 fi
3377 }
3378
3379 probe_cc cc "$cc"
3380 cflags_filter=$_flags_filter
3381 cflags_speed=$_cflags_speed
3382 cflags_size=$_cflags_size
3383 cflags_noopt=$_cflags_noopt
3384 add_cflags $_flags $_cflags
3385 cc_ldflags=$_ldflags
3386 set_ccvars CC
3387
3388 probe_cc hostcc "$host_cc"
3389 host_cflags_filter=$_flags_filter
3390 host_cflags_speed=$_cflags_speed
3391 add_host_cflags $_flags $_cflags
3392 set_ccvars HOSTCC
3393
3394 test -n "$cc_type" && enable $cc_type ||
3395 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3396
3397 : ${as_default:=$cc}
3398 : ${objcc_default:=$cc}
3399 : ${dep_cc_default:=$cc}
3400 : ${ld_default:=$cc}
3401 : ${host_ld_default:=$host_cc}
3402 set_default ar as objcc dep_cc ld host_ld
3403
3404 probe_cc as "$as"
3405 asflags_filter=$_flags_filter
3406 add_asflags $_flags $_cflags
3407 set_ccvars AS
3408
3409 probe_cc objcc "$objcc"
3410 objcflags_filter=$_flags_filter
3411 add_objcflags $_flags $_cflags
3412 set_ccvars OBJC
3413
3414 probe_cc ld "$ld"
3415 ldflags_filter=$_flags_filter
3416 add_ldflags $_flags $_ldflags
3417 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3418 LD_O=${_ld_o-$LD_O}
3419 LD_LIB=${_ld_lib-$LD_LIB}
3420 LD_PATH=${_ld_path-$LD_PATH}
3421
3422 probe_cc hostld "$host_ld"
3423 host_ldflags_filter=$_flags_filter
3424 add_host_ldflags $_flags $_ldflags
3425 HOSTLD_O=${_ld_o-$HOSTLD_O}
3426
3427 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3428 probe_cc depcc "$dep_cc"
3429 CCDEP=${_DEPCMD:-$DEPCMD}
3430 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3431 DEPCCFLAGS=$_flags
3432 fi
3433
3434 if $ar 2>&1 | grep -q Microsoft; then
3435 arflags="-nologo"
3436 ar_o='-out:$@'
3437 else
3438 arflags="rc"
3439 ar_o='$@'
3440 fi
3441
3442 add_cflags $extra_cflags
3443 add_objcflags $extra_objcflags
3444 add_asflags $extra_cflags
3445
3446 if test -n "$sysroot"; then
3447 case "$cc_type" in
3448 gcc|llvm_gcc|clang)
3449 add_cppflags --sysroot="$sysroot"
3450 add_ldflags --sysroot="$sysroot"
3451 ;;
3452 esac
3453 fi
3454
3455 if test "$cpu" = host; then
3456 enabled cross_compile &&
3457 die "--cpu=host makes no sense when cross-compiling."
3458
3459 case "$cc_type" in
3460 gcc|llvm_gcc)
3461 check_native(){
3462 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3463 sed -n "/cc1.*$1=/{
3464 s/.*$1=\\([^ ]*\\).*/\\1/
3465 p
3466 q
3467 }" $TMPE
3468 }
3469 cpu=$(check_native -march || check_native -mcpu)
3470 ;;
3471 esac
3472
3473 test "${cpu:-host}" = host &&
3474 die "--cpu=host not supported with compiler $cc"
3475 fi
3476
3477 # Deal with common $arch aliases
3478 case "$arch" in
3479 aarch64|arm64)
3480 arch="aarch64"
3481 ;;
3482 arm*)
3483 arch="arm"
3484 ;;
3485 mips*|IP*)
3486 case "$arch" in
3487 *el)
3488 add_cppflags -EL
3489 add_ldflags -EL
3490 ;;
3491 *eb)
3492 add_cppflags -EB
3493 add_ldflags -EB
3494 ;;
3495 esac
3496 arch="mips"
3497 ;;
3498 parisc*|hppa*)
3499 arch="parisc"
3500 ;;
3501 "Power Macintosh"|ppc*|powerpc*)
3502 arch="ppc"
3503 ;;
3504 s390|s390x)
3505 arch="s390"
3506 ;;
3507 sh4|sh)
3508 arch="sh4"
3509 ;;
3510 sun4u|sparc*)
3511 arch="sparc"
3512 ;;
3513 tilegx|tile-gx)
3514 arch="tilegx"
3515 ;;
3516 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3517 arch="x86"
3518 ;;
3519 esac
3520
3521 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3522 enable $arch
3523
3524 # Add processor-specific flags
3525 if enabled aarch64; then
3526
3527 case $cpu in
3528 armv*)
3529 cpuflags="-march=$cpu"
3530 ;;
3531 *)
3532 cpuflags="-mcpu=$cpu"
3533 ;;
3534 esac
3535
3536 elif enabled alpha; then
3537
3538 cpuflags="-mcpu=$cpu"
3539
3540 elif enabled arm; then
3541
3542 check_arm_arch() {
3543 check_cpp_condition stddef.h \
3544 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3545 $cpuflags
3546 }
3547
3548 probe_arm_arch() {
3549 if check_arm_arch 4; then echo armv4
3550 elif check_arm_arch 4T; then echo armv4t
3551 elif check_arm_arch 5; then echo armv5
3552 elif check_arm_arch 5E; then echo armv5e
3553 elif check_arm_arch 5T; then echo armv5t
3554 elif check_arm_arch 5TE; then echo armv5te
3555 elif check_arm_arch 5TEJ; then echo armv5te
3556 elif check_arm_arch 6; then echo armv6
3557 elif check_arm_arch 6J; then echo armv6j
3558 elif check_arm_arch 6K; then echo armv6k
3559 elif check_arm_arch 6Z; then echo armv6z
3560 elif check_arm_arch 6ZK; then echo armv6zk
3561 elif check_arm_arch 6T2; then echo armv6t2
3562 elif check_arm_arch 7; then echo armv7
3563 elif check_arm_arch 7A 7_A; then echo armv7-a
3564 elif check_arm_arch 7S; then echo armv7-a
3565 elif check_arm_arch 7R 7_R; then echo armv7-r
3566 elif check_arm_arch 7M 7_M; then echo armv7-m
3567 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3568 elif check_arm_arch 8A 8_A; then echo armv8-a
3569 fi
3570 }
3571
3572 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3573
3574 case $cpu in
3575 armv*)
3576 cpuflags="-march=$cpu"
3577 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3578 ;;
3579 *)
3580 cpuflags="-mcpu=$cpu"
3581 case $cpu in
3582 cortex-a*) subarch=armv7a ;;
3583 cortex-r*) subarch=armv7r ;;
3584 cortex-m*) enable thumb; subarch=armv7m ;;
3585 arm11*) subarch=armv6 ;;
3586 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3587 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3588 *) subarch=$(probe_arm_arch) ;;
3589 esac
3590 ;;
3591 esac
3592
3593 case "$subarch" in
3594 armv5t*) enable fast_clz ;;
3595 armv[6-8]*) enable fast_clz fast_unaligned ;;
3596 esac
3597
3598 elif enabled avr32; then
3599
3600 case $cpu in
3601 ap7[02]0[0-2])
3602 subarch="avr32_ap"
3603 cpuflags="-mpart=$cpu"
3604 ;;
3605 ap)
3606 subarch="avr32_ap"
3607 cpuflags="-march=$cpu"
3608 ;;
3609 uc3[ab]*)
3610 subarch="avr32_uc"
3611 cpuflags="-mcpu=$cpu"
3612 ;;
3613 uc)
3614 subarch="avr32_uc"
3615 cpuflags="-march=$cpu"
3616 ;;
3617 esac
3618
3619 elif enabled bfin; then
3620
3621 cpuflags="-mcpu=$cpu"
3622
3623 elif enabled mips; then
3624
3625 cpuflags="-march=$cpu"
3626
3627 elif enabled ppc; then
3628
3629 disable ldbrx
3630
3631 case $(tolower $cpu) in
3632 601|ppc601|powerpc601)
3633 cpuflags="-mcpu=601"
3634 disable altivec
3635 ;;
3636 603*|ppc603*|powerpc603*)
3637 cpuflags="-mcpu=603"
3638 disable altivec
3639 ;;
3640 604*|ppc604*|powerpc604*)
3641 cpuflags="-mcpu=604"
3642 disable altivec
3643 ;;
3644 g3|75*|ppc75*|powerpc75*)
3645 cpuflags="-mcpu=750"
3646 disable altivec
3647 ;;
3648 g4|745*|ppc745*|powerpc745*)
3649 cpuflags="-mcpu=7450"
3650 disable vsx
3651 ;;
3652 74*|ppc74*|powerpc74*)
3653 cpuflags="-mcpu=7400"
3654 disable vsx
3655 ;;
3656 g5|970|ppc970|powerpc970)
3657 cpuflags="-mcpu=970"
3658 disable vsx
3659 ;;
3660 power[3-6]*)
3661 cpuflags="-mcpu=$cpu"
3662 disable vsx
3663 ;;
3664 power[7-8]*)
3665 cpuflags="-mcpu=$cpu"
3666 enable ldbrx
3667 ;;
3668 cell)
3669 cpuflags="-mcpu=cell"
3670 enable ldbrx
3671 disable vsx
3672 ;;
3673 e500mc)
3674 cpuflags="-mcpu=e500mc"
3675 disable altivec
3676 ;;
3677 e500v2)
3678 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3679 disable altivec
3680 disable dcbzl
3681 ;;
3682 e500)
3683 cpuflags="-mcpu=8540 -mhard-float"
3684 disable altivec
3685 disable dcbzl
3686 ;;
3687 esac
3688
3689 elif enabled sparc; then
3690
3691 case $cpu in
3692 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3693 cpuflags="-mcpu=$cpu"
3694 ;;
3695 ultrasparc*|niagara[234])
3696 cpuflags="-mcpu=$cpu"
3697 ;;
3698 esac
3699
3700 elif enabled x86; then
3701
3702 case $cpu in
3703 i[345]86|pentium)
3704 cpuflags="-march=$cpu"
3705 disable i686
3706 disable mmx
3707 ;;
3708 # targets that do NOT support nopl and conditional mov (cmov)
3709 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3710 cpuflags="-march=$cpu"
3711 disable i686
3712 ;;
3713 # targets that do support nopl and conditional mov (cmov)
3714 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3715 cpuflags="-march=$cpu"
3716 enable i686
3717 enable fast_cmov
3718 ;;
3719 # targets that do support conditional mov but on which it's slow
3720 pentium4|pentium4m|prescott|nocona)
3721 cpuflags="-march=$cpu"
3722 enable i686
3723 disable fast_cmov
3724 ;;
3725 esac
3726
3727 fi
3728
3729 if [ "$cpu" != generic ]; then
3730 add_cflags $cpuflags
3731 add_asflags $cpuflags
3732 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3733 fi
3734
3735 # compiler sanity check
3736 check_exec <<EOF
3737 int main(void){ return 0; }
3738 EOF
3739 if test "$?" != 0; then
3740 echo "$cc is unable to create an executable file."
3741 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3742 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3743 echo "Only do this if you know what cross compiling means."
3744 fi
3745 die "C compiler test failed."
3746 fi
3747
3748 add_cppflags -D_ISOC99_SOURCE
3749
3750 # some compilers silently accept -std=c11, so we also need to check that the
3751 # version macro is defined properly
3752 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3753 add_cflags -std=c11 ||
3754 check_cflags -std=c99
3755
3756 check_cppflags -D_FILE_OFFSET_BITS=64
3757 check_cppflags -D_LARGEFILE_SOURCE
3758
3759 add_host_cppflags -D_ISOC99_SOURCE
3760 check_host_cflags -std=c99
3761 check_host_cflags -Wall
3762 check_host_cflags $host_cflags_speed
3763
3764 check_64bit(){
3765 arch32=$1
3766 arch64=$2
3767 expr=$3
3768 check_code cc "" "int test[2*($expr) - 1]" &&
3769 subarch=$arch64 || subarch=$arch32
3770 enable $subarch
3771 }
3772
3773 case "$arch" in
3774 aarch64|alpha|ia64)
3775 enabled shared && enable_weak pic
3776 ;;
3777 mips)
3778 check_64bit mips mips64 '_MIPS_SIM > 1'
3779 enabled shared && enable_weak pic
3780 ;;
3781 parisc)
3782 check_64bit parisc parisc64 'sizeof(void *) > 4'
3783 enabled shared && enable_weak pic
3784 ;;
3785 ppc)
3786 check_64bit ppc ppc64 'sizeof(void *) > 4'
3787 enabled shared && enable_weak pic
3788 ;;
3789 s390)
3790 check_64bit s390 s390x 'sizeof(void *) > 4'
3791 enabled shared && enable_weak pic
3792 ;;
3793 sparc)
3794 check_64bit sparc sparc64 'sizeof(void *) > 4'
3795 enabled shared && enable_weak pic
3796 ;;
3797 x86)
3798 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3799 if enabled x86_64; then
3800 enabled shared && enable_weak pic
3801 objformat=elf64
3802 fi
3803 ;;
3804 esac
3805
3806 # OS specific
3807 case $target_os in
3808 aix)
3809 SHFLAGS=-shared
3810 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3811 enabled shared && add_ldflags -Wl,-brtl
3812 arflags='-Xany -r -c'
3813 ;;
3814 android)
3815 disable symver
3816 enable section_data_rel_ro
3817 SLIB_INSTALL_NAME='$(SLIBNAME)'
3818 SLIB_INSTALL_LINKS=
3819 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3820 ;;
3821 haiku)
3822 prefix_default="/boot/common"
3823 network_extralibs="-lnetwork"
3824 host_extralibs=
3825 ;;
3826 sunos)
3827 SHFLAGS='-shared -Wl,-h,$$(@F)'
3828 enabled x86 && append SHFLAGS -mimpure-text
3829 network_extralibs="-lsocket -lnsl"
3830 # When using suncc to build, the Solaris linker will mark
3831 # an executable with each instruction set encountered by
3832 # the Solaris assembler. As our libraries contain their own
3833 # guards for processor-specific code, instead suppress
3834 # generation of the HWCAPS ELF section on Solaris x86 only.
3835 enabled_all suncc x86 &&
3836 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3837 add_ldflags -Wl,-M,mapfile
3838 nm_default='nm -P -g'
3839 version_script='-M'
3840 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3841 ;;
3842 netbsd)
3843 disable symver
3844 oss_indev_extralibs="-lossaudio"
3845 ;;
3846 openbsd|bitrig)
3847 disable symver
3848 SHFLAGS='-shared'
3849 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3850 SLIB_INSTALL_LINKS=
3851 oss_indev_extralibs="-lossaudio"
3852 ;;
3853 dragonfly)
3854 disable symver
3855 ;;
3856 freebsd)
3857 ;;
3858 bsd/os)
3859 add_extralibs -lpoll -lgnugetopt
3860 ;;
3861 darwin)
3862 enabled ppc && add_asflags -force_cpusubtype_ALL
3863 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3864 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3865 add_ldflags -Wl,-dynamic,-search_paths_first
3866 check_cflags -Werror=partial-availability
3867 SLIBSUF=".dylib"
3868 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3869 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3870 enabled x86_64 && objformat="macho64" || objformat="macho32"
3871 enabled_any pic shared ||
3872 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3873 check_header dispatch/dispatch.h &&
3874 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3875 if test -n "$sysroot"; then
3876 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3877 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3878 fi
3879 ;;
3880 msys*)
3881 die "Native MSYS builds are discouraged, please use the MINGW environment."
3882 ;;
3883 mingw32*|mingw64*)
3884 target_os=mingw32
3885 if enabled shared; then
3886 # Cannot build both shared and static libs when using dllexport.
3887 disable static
3888 fi
3889 check_ldflags -Wl,--nxcompat
3890 check_ldflags -Wl,--dynamicbase
3891 shlibdir_default="$bindir_default"
3892 SLIBPREF=""
3893 SLIBSUF=".dll"
3894 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3895 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3896 SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3897 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3898 SLIB_INSTALL_LINKS=
3899 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3900 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3901 SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3902 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3903 enabled x86_64 && objformat="win64" || objformat="win32"
3904 ranlib=:
3905 enable dos_paths
3906 ;;
3907 win32|win64)
3908 disable symver
3909 if enabled shared; then
3910 # Link to the import library instead of the normal static library
3911 # for shared libs.
3912 LD_LIB='%.lib'
3913 # Cannot build both shared and static libs with MSVC or icl.
3914 disable static
3915 fi
3916 shlibdir_default="$bindir_default"
3917 SLIBPREF=""
3918 SLIBSUF=".dll"
3919 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3920 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3921 SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3922 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3923 SLIB_INSTALL_LINKS=
3924 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3925 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3926 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3927 enabled x86_64 && objformat="win64" || objformat="win32"
3928 ranlib=:
3929 enable dos_paths
3930 ;;
3931 cygwin*)
3932 target_os=cygwin
3933 shlibdir_default="$bindir_default"
3934 SLIBPREF="cyg"
3935 SLIBSUF=".dll"
3936 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3937 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3938 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3939 SLIB_INSTALL_LINKS=
3940 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3941 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3942 enabled x86_64 && objformat="win64" || objformat="win32"
3943 enable dos_paths
3944 ;;
3945 *-dos|freedos|opendos)
3946 network_extralibs="-lsocket"
3947 objformat="coff"
3948 enable dos_paths
3949 add_cppflags -U__STRICT_ANSI__
3950 ;;
3951 linux)
3952 enable section_data_rel_ro
3953 ;;
3954 irix*)
3955 target_os=irix
3956 ranlib="echo ignoring ranlib"
3957 ;;
3958 os/2*)
3959 ln_s="cp -f"
3960 objformat="aout"
3961 add_cppflags -D_GNU_SOURCE
3962 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3963 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3964 LIBSUF="_s.a"
3965 SLIBPREF=""
3966 SLIBSUF=".dll"
3967 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3968 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3969 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3970 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3971 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3972 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3973 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3974 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3975 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3976 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3977 enable dos_paths
3978 ;;
3979 gnu/kfreebsd)
3980 add_cppflags -D_BSD_SOURCE
3981 ;;
3982 gnu)
3983 ;;
3984 qnx)
3985 add_cppflags -D_QNX_SOURCE
3986 network_extralibs="-lsocket"
3987 ;;
3988 symbian)
3989 SLIBSUF=".dll"
3990 enable dos_paths
3991 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3992 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3993 add_ldflags -Wl,--target1-abs,--no-undefined \
3994 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3995 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3996 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3997 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3998 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3999 ;;
4000 minix)
4001 ;;
4002 none)
4003 ;;
4004 *)
4005 die "Unknown OS '$target_os'."
4006 ;;
4007 esac
4008
4009 # determine libc flavour
4010
4011 probe_libc(){
4012 pfx=$1
4013 pfx_no_=${pfx%_}
4014 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4015 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4016 eval ${pfx}libc_type=uclibc
4017 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4018 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4019 eval ${pfx}libc_type=glibc
4020 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4021 # MinGW headers can be installed on Cygwin, so check for newlib first.
4022 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4023 eval ${pfx}libc_type=newlib
4024 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4025 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4026 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4027 eval ${pfx}libc_type=mingw64
4028 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4029 eval test \$${pfx_no_}cc_type = "gcc" &&
4030 add_${pfx}cppflags -D__printf__=__gnu_printf__
4031 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4032 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4033 eval ${pfx}libc_type=mingw32
4034 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4035 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4036 die "ERROR: MinGW32 runtime version must be >= 3.15."
4037 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4038 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4039 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4040 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4041 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4042 eval test \$${pfx_no_}cc_type = "gcc" &&
4043 add_${pfx}cppflags -D__printf__=__gnu_printf__
4044 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4045 eval ${pfx}libc_type=msvcrt
4046 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4047 if [ "$pfx" = host_ ]; then
4048 add_host_cppflags -Dsnprintf=_snprintf
4049 else
4050 add_compat strtod.o strtod=avpriv_strtod
4051 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4052 _snprintf=avpriv_snprintf \
4053 vsnprintf=avpriv_vsnprintf
4054 fi
4055 fi
4056 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4057 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4058 # 0x601 by default unless something else is set by the user.
4059 # This can easily lead to us detecting functions only present
4060 # in such new versions and producing binaries requiring windows 7.0.
4061 # Therefore explicitly set the default to XP unless the user has
4062 # set something else on the command line.
4063 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4064 # family. For these cases, configure is free to use any functions
4065 # found in the SDK headers by default. (Alternatively, we could force
4066 # _WIN32_WINNT to 0x0602 in that case.)
4067 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4068 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4069 #ifdef WINAPI_FAMILY
4070 #include <winapifamily.h>
4071 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4072 #error not desktop
4073 #endif
4074 #endif
4075 EOF
4076 if [ "$pfx" = "" ]; then
4077 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4078 fi
4079 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4080 eval ${pfx}libc_type=klibc
4081 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4082 eval ${pfx}libc_type=bionic
4083 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4084 eval ${pfx}libc_type=solaris
4085 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4086 else
4087 eval ${pfx}libc_type=default
4088 add_${pfx}cppflags -D_DEFAULT_SOURCE
4089 fi
4090 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4091 }
4092
4093 probe_libc
4094 probe_libc host_
4095
4096 # hacks for compiler/libc/os combinations
4097
4098 case $libc_type in
4099 bionic)
4100 add_compat strtod.o strtod=avpriv_strtod
4101 ;;
4102 esac
4103
4104 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4105 add_cppflags '-I\$(SRC_PATH)/compat/float'
4106
4107 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4108
4109 set_default $PATHS_LIST
4110 set_default nm
4111
4112 disabled optimizations || check_cflags -fomit-frame-pointer
4113
4114 enable_weak_pic() {
4115 disabled pic && return
4116 enable pic
4117 add_cppflags -DPIC
4118 case "$target_os" in
4119 mingw*|cygwin*|win*)
4120 ;;
4121 *)
4122 add_cflags -fPIC
4123 add_asflags -fPIC
4124 ;;
4125 esac
4126 }
4127
4128 enabled pic && enable_weak_pic
4129
4130 check_cc <<EOF || die "Symbol mangling check failed."
4131 int ff_extern;
4132 EOF
4133 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4134 extern_prefix=${sym%%ff_extern*}
4135
4136 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4137
4138 _restrict=
4139 for restrict_keyword in restrict __restrict__ __restrict; do
4140 check_cc <<EOF && _restrict=$restrict_keyword && break
4141 void foo(char * $restrict_keyword p);
4142 EOF
4143 done
4144
4145 check_cc <<EOF && enable pragma_deprecated
4146 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4147 EOF
4148
4149 check_cc <<EOF || die "endian test failed"
4150 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4151 EOF
4152 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4153
4154 check_gas() {
4155 log "check_gas using '$as' as AS"
4156 # :vararg is used on aarch64, arm and ppc altivec
4157 check_as <<EOF || return 1
4158 .macro m n, y:vararg=0
4159 \n: .int \y
4160 .endm
4161 m x
4162 EOF
4163 # .altmacro is only used in arm asm
4164 ! enabled arm || check_as <<EOF || return 1
4165 .altmacro
4166 EOF
4167 enable gnu_as
4168 return 0
4169 }
4170
4171 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4172 nogas=:
4173 enabled_any arm aarch64 && nogas=die
4174 enabled_all ppc altivec && nogas=warn
4175 as_noop=-v
4176
4177 case $as_type in
4178 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4179 gcc) gaspp_as_type=gas ;;
4180 *) gaspp_as_type=$as_type ;;
4181 esac
4182
4183 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4184
4185 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4186 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4187
4188 if ! check_gas ; then
4189 as=${gas:=$as}
4190 check_gas || \
4191 $nogas "GNU assembler not found, install/update gas-preprocessor"
4192 fi
4193
4194 check_as <<EOF && enable as_func
4195 .func test
4196 .endfunc
4197 EOF
4198 fi
4199
4200 check_inline_asm inline_asm_labels '"1:\n"'
4201
4202 if enabled aarch64; then
4203 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4204 # internal assembler in clang 3.3 does not support this instruction
4205 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4206 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4207
4208 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4209
4210 elif enabled alpha; then
4211
4212 check_cflags -mieee
4213
4214 elif enabled arm; then
4215
4216 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4217 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4218 enabled thumb && check_cflags -mthumb || check_cflags -marm
4219
4220 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4221 enable vfp_args
4222 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4223 enable vfp_args
4224 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4225 case "${cross_prefix:-$cc}" in
4226 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4227 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4228 __asm__ (".eabi_attribute 28, 1");
4229 int main(void) { return 0; }
4230 EOF
4231 esac
4232 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4233 fi
4234
4235 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4236 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4237 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4238 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4239 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4240 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4241
4242 [ $target_os = linux ] || [ $target_os = android ] ||
4243 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4244 $ARCH_EXT_LIST_ARM
4245
4246 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4247
4248 check_as <<EOF && enable as_arch_directive
4249 .arch armv7-a
4250 EOF
4251 check_as <<EOF && enable as_fpu_directive
4252 .fpu neon
4253 EOF
4254
4255 # llvm's integrated assembler supports .object_arch from llvm 3.5
4256 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4257 check_as <<EOF && enable as_object_arch
4258 .object_arch armv4
4259 EOF
4260
4261 # MS armasm fails to assemble our PIC constructs
4262 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4263
4264 elif enabled mips; then
4265
4266 # make sure that only one instruction set is enabled
4267 disable $ARCH_EXT_LIST_MIPS
4268
4269 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4270
4271 if enabled mips64; then
4272 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4273 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4274 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4275 else
4276 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4277 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4278 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4279 fi
4280
4281 elif enabled parisc; then
4282
4283 if enabled gcc; then
4284 case $($cc -dumpversion) in
4285 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4286 esac
4287 fi
4288
4289 elif enabled ppc; then
4290
4291 enable local_aligned_8 local_aligned_16 local_aligned_32
4292
4293 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4294 check_inline_asm ibm_asm '"add 0, 0, 0"'
4295 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4296 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4297
4298 if enabled altivec; then
4299 check_cflags -maltivec -mabi=altivec
4300
4301 # check if our compiler supports Motorola AltiVec C API
4302 check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4303 vector signed int v2 = (vector signed int) { 1 };
4304 v1 = vec_add(v1, v2);" ||
4305 disable altivec
4306
4307 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4308 fi
4309
4310 if enabled vsx; then
4311 check_cflags -mvsx &&
4312 check_code cc altivec.h "int v[4] = { 0 };
4313 vector signed int v1 = vec_vsx_ld(0, v);" ||
4314 disable vsx
4315 fi
4316
4317 if enabled power8; then
4318 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4319 fi
4320
4321 elif enabled x86; then
4322
4323 check_builtin rdtsc intrin.h "__rdtsc()"
4324 check_builtin mm_empty mmintrin.h "_mm_empty()"
4325
4326 enable local_aligned_8 local_aligned_16 local_aligned_32
4327
4328 # check whether EBP is available on x86
4329 # As 'i' is stored on the stack, this program will crash
4330 # if the base pointer is used to access it because the
4331 # base pointer is cleared in the inline assembly code.
4332 check_exec_crash <<EOF && enable ebp_available
4333 volatile int i=0;
4334 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4335 return i;
4336 EOF
4337
4338 # check whether EBX is available on x86
4339 check_inline_asm ebx_available '""::"b"(0)' &&
4340 check_inline_asm ebx_available '"":::"%ebx"'
4341
4342 # check whether xmm clobbers are supported
4343 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4344
4345 # check whether binutils is new enough to compile SSSE3/MMXEXT
4346 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4347 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4348
4349 probe_x86asm(){
4350 x86asmexe_probe=$1
4351 if check_cmd $x86asmexe_probe -v; then
4352 x86asmexe=$x86asmexe_probe
4353 x86asm_type=nasm
4354 x86asm_debug="-g -F dwarf"
4355 X86ASMDEP=
4356 X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4357 elif check_cmd $x86asmexe_probe --version; then
4358 x86asmexe=$x86asmexe_probe
4359 x86asm_type=yasm
4360 x86asm_debug="-g dwarf2"
4361 X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4362 X86ASM_DEPFLAGS=
4363 fi
4364 check_x86asm "movbe ecx, [5]" && enable x86asm
4365 }
4366
4367 if ! disabled_any asm mmx x86asm; then
4368 disable x86asm
4369 for program in $x86asmexe nasm yasm; do
4370 probe_x86asm $program && break
4371 done
4372 disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4373 X86ASMFLAGS="-f $objformat"
4374 enabled pic && append X86ASMFLAGS "-DPIC"
4375 test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
4376 case "$objformat" in
4377 elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4378 esac
4379
4380 check_x86asm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4381 check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4382 check_x86asm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4383 check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4384 check_x86asm "CPU amdnop" || disable cpunop
4385 fi
4386
4387 case "$cpu" in
4388 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4389 disable fast_clz
4390 ;;
4391 esac
4392
4393 fi
4394
4395 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4396
4397 check_ldflags -Wl,--as-needed
4398