Implement Snappy decompression
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
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 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
178
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-frei0r enable frei0r video filtering
183 --enable-gnutls enable gnutls [no]
184 --enable-libbs2b enable bs2b DSP library [no]
185 --enable-libcdio enable audio CD grabbing with libcdio
186 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
187 and libraw1394 [no]
188 --enable-libdcadec enable DCA decoding via libdcadec [no]
189 --enable-libfaac enable AAC encoding via libfaac [no]
190 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
191 --enable-libfreetype enable libfreetype [no]
192 --enable-libgsm enable GSM de/encoding via libgsm [no]
193 --enable-libilbc enable iLBC de/encoding via libilbc [no]
194 --enable-libmfx enable HW acceleration through libmfx
195 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
196 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
197 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
198 --enable-libopencv enable video filtering via libopencv [no]
199 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
200 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
201 --enable-libopus enable Opus de/encoding via libopus [no]
202 --enable-libpulse enable Pulseaudio input via libpulse [no]
203 --enable-librtmp enable RTMP[E] support via librtmp [no]
204 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
205 --enable-libspeex enable Speex de/encoding via libspeex [no]
206 --enable-libtheora enable Theora encoding via libtheora [no]
207 --enable-libtwolame enable MP2 encoding via libtwolame [no]
208 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
209 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
210 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
211 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
212 --enable-libwavpack enable wavpack encoding via libwavpack [no]
213 --enable-libwebp enable WebP encoding via libwebp [no]
214 --enable-libx264 enable H.264 encoding via x264 [no]
215 --enable-libx265 enable HEVC encoding via x265 [no]
216 --enable-libxavs enable AVS encoding via xavs [no]
217 --enable-libxcb enable X11 grabbing using XCB [no]
218 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
219 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
220 --enable-libxvid enable Xvid encoding via xvidcore,
221 native MPEG-4/Xvid encoder exists [no]
222 --enable-mmal enable decoding via MMAL [no]
223 --enable-nvenc enable encoding via NVENC [no]
224 --enable-openssl enable openssl [no]
225 --enable-x11grab enable X11 grabbing (legacy) [no]
226 --enable-zlib enable zlib [autodetect]
227
228 Toolchain options:
229 --arch=ARCH select architecture [$arch]
230 --cpu=CPU select the minimum required CPU (affects
231 instruction selection, may crash on older CPUs)
232 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
233 --enable-cross-compile assume a cross-compiler is used
234 --sysroot=PATH root of cross-build tree
235 --sysinclude=PATH location of cross-build system headers
236 --target-os=OS compiler targets OS [$target_os]
237 --target-exec=CMD command to run executables on target
238 --target-path=DIR path to view of build directory on target
239 --target-samples=DIR path to samples directory on target
240 --toolchain=NAME set tool defaults according to NAME
241 --nm=NM use nm tool
242 --ar=AR use archive tool AR [$ar_default]
243 --as=AS use assembler AS [$as_default]
244 --cc=CC use C compiler CC [$cc_default]
245 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
246 --ld=LD use linker LD
247 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
248 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
249 --host-cc=HOSTCC use host C compiler HOSTCC
250 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
251 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
252 --host-ld=HOSTLD use host linker HOSTLD
253 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
254 --host-libs=HLIBS use libs HLIBS when linking for host
255 --host-os=OS compiler host OS [$target_os]
256 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
257 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
258 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
259 --extra-libs=ELIBS add ELIBS [$ELIBS]
260 --extra-version=STRING version string suffix []
261 --optflags=OPTFLAGS override optimization-related compiler flags
262 --build-suffix=SUFFIX library name suffix []
263 --enable-pic build position-independent code
264 --enable-thumb compile for Thumb instruction set
265 --enable-lto use link-time optimization
266 --env="ENV=override" override the environment variables
267
268 Advanced options (experts only):
269 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
270 --disable-symver disable symbol versioning
271 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
272 --disable-safe-bitstream-reader
273 disable buffer boundary checking in bitreaders
274 (faster, but may crash)
275 --enable-memalign-hack emulate memalign, interferes with memory debuggers
276 --enable-sram allow use of on-chip SRAM
277
278 Optimization options (experts only):
279 --disable-asm disable all assembly optimizations
280 --disable-altivec disable AltiVec optimizations
281 --disable-vsx disable VSX optimizations
282 --disable-power8 disable POWER8 optimizations
283 --disable-amd3dnow disable 3DNow! optimizations
284 --disable-amd3dnowext disable 3DNow! extended optimizations
285 --disable-mmx disable MMX optimizations
286 --disable-mmxext disable MMXEXT optimizations
287 --disable-sse disable SSE optimizations
288 --disable-sse2 disable SSE2 optimizations
289 --disable-sse3 disable SSE3 optimizations
290 --disable-ssse3 disable SSSE3 optimizations
291 --disable-sse4 disable SSE4 optimizations
292 --disable-sse42 disable SSE4.2 optimizations
293 --disable-avx disable AVX optimizations
294 --disable-xop disable XOP optimizations
295 --disable-fma3 disable FMA3 optimizations
296 --disable-fma4 disable FMA4 optimizations
297 --disable-avx2 disable AVX2 optimizations
298 --disable-armv5te disable armv5te optimizations
299 --disable-armv6 disable armv6 optimizations
300 --disable-armv6t2 disable armv6t2 optimizations
301 --disable-vfp disable VFP optimizations
302 --disable-neon disable NEON optimizations
303 --disable-inline-asm disable use of inline assembly
304 --disable-yasm disable use of nasm/yasm assembly
305
306 Developer options (useful when working on Libav itself):
307 --disable-debug disable debugging symbols
308 --enable-debug=LEVEL set the debug level [$debuglevel]
309 --disable-optimizations disable compiler optimizations
310 --enable-extra-warnings enable more compiler warnings
311 --samples=PATH location of test samples for FATE, if not set use
312 \$LIBAV_SAMPLES at make invocation time.
313 --enable-neon-clobber-test check NEON registers for clobbering (should be
314 used only for debugging purposes)
315 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
316 should be used only for debugging purposes)
317 --enable-random randomly enable/disable components
318 --disable-random
319 --enable-random=LIST randomly enable/disable specific components or
320 --disable-random=LIST component groups. LIST is a comma-separated list
321 of NAME[:PROB] entries where NAME is a component
322 (group) and PROB the probability associated with
323 NAME (default 0.5).
324 --random-seed=VALUE seed value for --enable/disable-random
325 --disable-valgrind-backtrace do not print a backtrace under Valgrind
326 (only applies to --disable-optimizations builds)
327
328 NOTE: Object files are built at the place where configure is launched.
329 EOF
330 exit 0
331 }
332
333 quotes='""'
334
335 log(){
336 echo "$@" >> $logfile
337 }
338
339 log_file(){
340 log BEGIN $1
341 pr -n -t $1 >> $logfile
342 log END $1
343 }
344
345 echolog(){
346 log "$@"
347 echo "$@"
348 }
349
350 warn(){
351 log "WARNING: $*"
352 WARNINGS="${WARNINGS}WARNING: $*\n"
353 }
354
355 die(){
356 echolog "$@"
357 cat <<EOF
358
359 If you think configure made a mistake, make sure you are using the latest
360 version from Git. If the latest version fails, report the problem to the
361 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
362 EOF
363 if disabled logging; then
364 cat <<EOF
365 Rerun configure with logging enabled (do not use --disable-logging), and
366 include the log this produces with your report.
367 EOF
368 else
369 cat <<EOF
370 Include the log file "$logfile" produced by configure as this will help
371 solving the problem.
372 EOF
373 fi
374 exit 1
375 }
376
377 # Avoid locale weirdness, besides we really just want to translate ASCII.
378 toupper(){
379 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
380 }
381
382 tolower(){
383 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
384 }
385
386 c_escape(){
387 echo "$*" | sed 's/["\\]/\\\0/g'
388 }
389
390 sh_quote(){
391 v=$(echo "$1" | sed "s/'/'\\\\''/g")
392 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
393 echo "$v"
394 }
395
396 cleanws(){
397 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
398 }
399
400 filter(){
401 pat=$1
402 shift
403 for v; do
404 eval "case $v in $pat) echo $v ;; esac"
405 done
406 }
407
408 filter_out(){
409 pat=$1
410 shift
411 for v; do
412 eval "case $v in $pat) ;; *) echo $v ;; esac"
413 done
414 }
415
416 map(){
417 m=$1
418 shift
419 for v; do eval $m; done
420 }
421
422 add_suffix(){
423 suffix=$1
424 shift
425 for v; do echo ${v}${suffix}; done
426 }
427
428 set_all(){
429 value=$1
430 shift
431 for var in $*; do
432 eval $var=$value
433 done
434 }
435
436 set_weak(){
437 value=$1
438 shift
439 for var; do
440 eval : \${$var:=$value}
441 done
442 }
443
444 sanitize_var_name(){
445 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
446 }
447
448 set_safe(){
449 var=$1
450 shift
451 eval $(sanitize_var_name "$var")='$*'
452 }
453
454 get_safe(){
455 eval echo \$$(sanitize_var_name "$1")
456 }
457
458 pushvar(){
459 for pvar in $*; do
460 eval level=\${${pvar}_level:=0}
461 eval ${pvar}_${level}="\$$pvar"
462 eval ${pvar}_level=$(($level+1))
463 done
464 }
465
466 popvar(){
467 for pvar in $*; do
468 eval level=\${${pvar}_level:-0}
469 test $level = 0 && continue
470 eval level=$(($level-1))
471 eval $pvar="\${${pvar}_${level}}"
472 eval ${pvar}_level=$level
473 eval unset ${pvar}_${level}
474 done
475 }
476
477 enable(){
478 set_all yes $*
479 }
480
481 disable(){
482 set_all no $*
483 }
484
485 enable_weak(){
486 set_weak yes $*
487 }
488
489 disable_weak(){
490 set_weak no $*
491 }
492
493 enable_safe(){
494 for var; do
495 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
496 done
497 }
498
499 disable_safe(){
500 for var; do
501 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
502 done
503 }
504
505 do_enable_deep(){
506 for var; do
507 enabled $var && continue
508 eval sel="\$${var}_select"
509 eval sgs="\$${var}_suggest"
510 pushvar var sgs
511 enable_deep $sel
512 popvar sgs
513 enable_deep_weak $sgs
514 popvar var
515 done
516 }
517
518 enable_deep(){
519 do_enable_deep $*
520 enable $*
521 }
522
523 enable_deep_weak(){
524 for var; do
525 disabled $var && continue
526 pushvar var
527 do_enable_deep $var
528 popvar var
529 enable_weak $var
530 done
531 }
532
533 enabled(){
534 test "${1#!}" = "$1" && op== || op=!=
535 eval test "x\$${1#!}" $op "xyes"
536 }
537
538 disabled(){
539 test "${1#!}" = "$1" && op== || op=!=
540 eval test "x\$${1#!}" $op "xno"
541 }
542
543 enabled_all(){
544 for opt; do
545 enabled $opt || return 1
546 done
547 }
548
549 disabled_all(){
550 for opt; do
551 disabled $opt || return 1
552 done
553 }
554
555 enabled_any(){
556 for opt; do
557 enabled $opt && return 0
558 done
559 }
560
561 disabled_any(){
562 for opt; do
563 disabled $opt && return 0
564 done
565 return 1
566 }
567
568 set_default(){
569 for opt; do
570 eval : \${$opt:=\$${opt}_default}
571 done
572 }
573
574 is_in(){
575 value=$1
576 shift
577 for var in $*; do
578 [ $var = $value ] && return 0
579 done
580 return 1
581 }
582
583 do_check_deps(){
584 for cfg; do
585 cfg="${cfg#!}"
586 enabled ${cfg}_checking && die "Circular dependency for $cfg."
587 disabled ${cfg}_checking && continue
588 enable ${cfg}_checking
589 append allopts $cfg
590
591 eval dep_all="\$${cfg}_deps"
592 eval dep_any="\$${cfg}_deps_any"
593 eval dep_sel="\$${cfg}_select"
594 eval dep_sgs="\$${cfg}_suggest"
595 eval dep_ifa="\$${cfg}_if"
596 eval dep_ifn="\$${cfg}_if_any"
597
598 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
599 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
600 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
601
602 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
603 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
604 enabled_all $dep_all || disable $cfg
605 enabled_any $dep_any || disable $cfg
606 disabled_any $dep_sel && disable $cfg
607
608 if enabled $cfg; then
609 enable_deep $dep_sel
610 enable_deep_weak $dep_sgs
611 fi
612
613 disable ${cfg}_checking
614 done
615 }
616
617 check_deps(){
618 unset allopts
619
620 do_check_deps "$@"
621
622 for cfg in $allopts; do
623 enabled $cfg || continue
624 eval dep_extralibs="\$${cfg}_extralibs"
625 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
626 done
627 }
628
629 print_config(){
630 pfx=$1
631 files=$2
632 shift 2
633 map 'eval echo "$v \${$v:-no}"' "$@" |
634 awk "BEGIN { split(\"$files\", files) }
635 {
636 c = \"$pfx\" toupper(\$1);
637 v = \$2;
638 sub(/yes/, 1, v);
639 sub(/no/, 0, v);
640 for (f in files) {
641 file = files[f];
642 if (file ~ /\\.h\$/) {
643 printf(\"#define %s %d\\n\", c, v) >>file;
644 } else if (file ~ /\\.asm\$/) {
645 printf(\"%%define %s %d\\n\", c, v) >>file;
646 } else if (file ~ /\\.mak\$/) {
647 n = -v ? \"\" : \"!\";
648 printf(\"%s%s=yes\\n\", n, c) >>file;
649 }
650 }
651 }"
652 }
653
654 print_enabled(){
655 suf=$1
656 shift
657 for v; do
658 enabled $v && printf "%s\n" ${v%$suf};
659 done
660 }
661
662 append(){
663 var=$1
664 shift
665 eval "$var=\"\$$var $*\""
666 }
667
668 prepend(){
669 var=$1
670 shift
671 eval "$var=\"$* \$$var\""
672 }
673
674 unique(){
675 var=$1
676 uniq_list=""
677 for tok in $(eval echo \$$var); do
678 uniq_list="$(filter_out $tok $uniq_list) $tok"
679 done
680 eval "$var=\"${uniq_list}\""
681 }
682
683 add_cppflags(){
684 append CPPFLAGS "$@"
685 }
686
687 add_cflags(){
688 append CFLAGS $($cflags_filter "$@")
689 }
690
691 add_asflags(){
692 append ASFLAGS $($asflags_filter "$@")
693 }
694
695 add_ldflags(){
696 append LDFLAGS $($ldflags_filter "$@")
697 }
698
699 add_ldexeflags(){
700 append LDEXEFLAGS $($ldflags_filter "$@")
701 }
702
703 add_stripflags(){
704 append STRIPFLAGS "$@"
705 }
706
707 add_extralibs(){
708 prepend extralibs $($ldflags_filter "$@")
709 }
710
711 add_host_cppflags(){
712 append host_cppflags "$@"
713 }
714
715 add_host_cflags(){
716 append host_cflags $($host_cflags_filter "$@")
717 }
718
719 add_host_ldflags(){
720 append host_ldflags $($host_ldflags_filter "$@")
721 }
722
723 add_compat(){
724 append compat_objs $1
725 shift
726 map 'add_cppflags -D$v' "$@"
727 }
728
729 check_cmd(){
730 log "$@"
731 "$@" >> $logfile 2>&1
732 }
733
734 cc_o(){
735 eval printf '%s\\n' $CC_O
736 }
737
738 cc_e(){
739 eval printf '%s\\n' $CC_E
740 }
741
742 check_cc(){
743 log check_cc "$@"
744 cat > $TMPC
745 log_file $TMPC
746 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
747 }
748
749 check_cpp(){
750 log check_cpp "$@"
751 cat > $TMPC
752 log_file $TMPC
753 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
754 }
755
756 as_o(){
757 eval printf '%s\\n' $AS_O
758 }
759
760 check_as(){
761 log check_as "$@"
762 cat > $TMPS
763 log_file $TMPS
764 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
765 }
766
767 check_inline_asm(){
768 log check_inline_asm "$@"
769 name="$1"
770 code="$2"
771 shift 2
772 disable $name
773 check_cc "$@" <<EOF && enable $name
774 void foo(void){ __asm__ volatile($code); }
775 EOF
776 }
777
778 check_insn(){
779 log check_insn "$@"
780 check_inline_asm ${1}_inline "\"$2\""
781 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
782 }
783
784 check_yasm(){
785 log check_yasm "$@"
786 echo "$1" > $TMPS
787 log_file $TMPS
788 shift 1
789 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
790 }
791
792 ld_o(){
793 eval printf '%s\\n' $LD_O
794 }
795
796 check_ld(){
797 log check_ld "$@"
798 flags=$(filter_out '-l*' "$@")
799 libs=$(filter '-l*' "$@")
800 check_cc $($cflags_filter $flags) || return
801 flags=$($ldflags_filter $flags)
802 libs=$($ldflags_filter $libs)
803 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
804 }
805
806 print_include(){
807 hdr=$1
808 test "${hdr%.h}" = "${hdr}" &&
809 echo "#include $hdr" ||
810 echo "#include <$hdr>"
811 }
812
813 check_code(){
814 log check_code "$@"
815 check=$1
816 headers=$2
817 code=$3
818 shift 3
819 {
820 for hdr in $headers; do
821 print_include $hdr
822 done
823 echo "int main(void) { $code; return 0; }"
824 } | check_$check "$@"
825 }
826
827 check_cppflags(){
828 log check_cppflags "$@"
829 check_cc "$@" <<EOF && append CPPFLAGS "$@"
830 int x;
831 EOF
832 }
833
834 test_cflags(){
835 log test_cflags "$@"
836 set -- $($cflags_filter "$@")
837 check_cc "$@" <<EOF
838 int x;
839 EOF
840 }
841
842 check_cflags(){
843 log check_cflags "$@"
844 test_cflags "$@" && add_cflags "$@"
845 }
846
847 test_ldflags(){
848 log test_ldflags "$@"
849 check_ld "$@" <<EOF
850 int main(void){ return 0; }
851 EOF
852 }
853
854 check_ldflags(){
855 log check_ldflags "$@"
856 test_ldflags "$@" && add_ldflags "$@"
857 }
858
859 test_stripflags(){
860 log test_stripflags "$@"
861 # call check_cc to get a fresh TMPO
862 check_cc <<EOF
863 int main(void) { return 0; }
864 EOF
865 check_cmd $strip $STRIPFLAGS "$@" $TMPO
866 }
867
868 check_stripflags(){
869 log check_stripflags "$@"
870 test_stripflags "$@" && add_stripflags "$@"
871 }
872
873 check_header(){
874 log check_header "$@"
875 header=$1
876 shift
877 disable_safe $header
878 check_cpp "$@" <<EOF && enable_safe $header
879 #include <$header>
880 int x;
881 EOF
882 }
883
884 check_func(){
885 log check_func "$@"
886 func=$1
887 shift
888 disable $func
889 check_ld "$@" <<EOF && enable $func
890 extern int $func();
891 int main(void){ $func(); }
892 EOF
893 }
894
895 check_mathfunc(){
896 log check_mathfunc "$@"
897 func=$1
898 narg=$2
899 shift 2
900 test $narg = 2 && args="f, g" || args="f"
901 disable $func
902 check_ld "$@" <<EOF && enable $func
903 #include <math.h>
904 float foo(float f, float g) { return $func($args); }
905 int main(void){ return 0; }
906 EOF
907 }
908
909 check_func_headers(){
910 log check_func_headers "$@"
911 headers=$1
912 funcs=$2
913 shift 2
914 {
915 for hdr in $headers; do
916 print_include $hdr
917 done
918 for func in $funcs; do
919 echo "long check_$func(void) { return (long) $func; }"
920 done
921 echo "int main(void) { return 0; }"
922 } | check_ld "$@" && enable $funcs && enable_safe $headers
923 }
924
925 check_cpp_condition(){
926 log check_cpp_condition "$@"
927 header=$1
928 condition=$2
929 shift 2
930 check_cpp "$@" <<EOF
931 #include <$header>
932 #if !($condition)
933 #error "unsatisfied condition: $condition"
934 #endif
935 EOF
936 }
937
938 check_lib(){
939 log check_lib "$@"
940 header="$1"
941 func="$2"
942 shift 2
943 check_header $header && check_func $func "$@" && add_extralibs "$@"
944 }
945
946 check_lib2(){
947 log check_lib2 "$@"
948 headers="$1"
949 funcs="$2"
950 shift 2
951 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
952 }
953
954 check_pkg_config(){
955 log check_pkg_config "$@"
956 pkg="$1"
957 headers="$2"
958 funcs="$3"
959 shift 3
960 check_cmd $pkg_config --exists --print-errors $pkg || return
961 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
962 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
963 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
964 set_safe "${pkg}_cflags" $pkg_cflags &&
965 set_safe "${pkg}_libs" $pkg_libs
966 }
967
968 check_exec(){
969 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
970 }
971
972 check_exec_crash(){
973 code=$(cat)
974
975 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
976 # are safe but may not be available everywhere. Thus we use
977 # raise(SIGTERM) instead. The check is run in a subshell so we
978 # can redirect the "Terminated" message from the shell. SIGBUS
979 # is not defined by standard C so it is used conditionally.
980
981 (check_exec "$@") >> $logfile 2>&1 <<EOF
982 #include <signal.h>
983 static void sighandler(int sig){
984 raise(SIGTERM);
985 }
986 int foo(void){
987 $code
988 }
989 int (*func_ptr)(void) = foo;
990 int main(void){
991 signal(SIGILL, sighandler);
992 signal(SIGFPE, sighandler);
993 signal(SIGSEGV, sighandler);
994 #ifdef SIGBUS
995 signal(SIGBUS, sighandler);
996 #endif
997 return func_ptr();
998 }
999 EOF
1000 }
1001
1002 check_type(){
1003 log check_type "$@"
1004 headers=$1
1005 type=$2
1006 shift 2
1007 disable_safe "$type"
1008 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1009 }
1010
1011 check_struct(){
1012 log check_struct "$@"
1013 headers=$1
1014 struct=$2
1015 member=$3
1016 shift 3
1017 disable_safe "${struct}_${member}"
1018 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1019 enable_safe "${struct}_${member}"
1020 }
1021
1022 check_builtin(){
1023 log check_builtin "$@"
1024 name=$1
1025 headers=$2
1026 builtin=$3
1027 shift 3
1028 disable "$name"
1029 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1030 }
1031
1032 check_compile_assert(){
1033 log check_compile_assert "$@"
1034 name=$1
1035 headers=$2
1036 condition=$3
1037 shift 3
1038 disable "$name"
1039 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1040 }
1041
1042 require(){
1043 name="$1"
1044 header="$2"
1045 func="$3"
1046 shift 3
1047 check_lib $header $func "$@" || die "ERROR: $name not found"
1048 }
1049
1050 require2(){
1051 name="$1"
1052 headers="$2"
1053 func="$3"
1054 shift 3
1055 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1056 }
1057
1058 require_pkg_config(){
1059 pkg="$1"
1060 check_pkg_config "$@" || die "ERROR: $pkg not found"
1061 add_cflags $(get_safe "${pkg}_cflags")
1062 add_extralibs $(get_safe "${pkg}_libs")
1063 }
1064
1065 hostcc_e(){
1066 eval printf '%s\\n' $HOSTCC_E
1067 }
1068
1069 hostcc_o(){
1070 eval printf '%s\\n' $HOSTCC_O
1071 }
1072
1073 check_host_cc(){
1074 log check_host_cc "$@"
1075 cat > $TMPC
1076 log_file $TMPC
1077 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1078 }
1079
1080 check_host_cpp(){
1081 log check_host_cpp "$@"
1082 cat > $TMPC
1083 log_file $TMPC
1084 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1085 }
1086
1087 check_host_cppflags(){
1088 log check_host_cppflags "$@"
1089 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1090 int x;
1091 EOF
1092 }
1093
1094 check_host_cflags(){
1095 log check_host_cflags "$@"
1096 set -- $($host_cflags_filter "$@")
1097 check_host_cc "$@" <<EOF && append host_cflags "$@"
1098 int x;
1099 EOF
1100 }
1101
1102 check_host_cpp_condition(){
1103 log check_host_cpp_condition "$@"
1104 header=$1
1105 condition=$2
1106 shift 2
1107 check_host_cpp "$@" <<EOF
1108 #include <$header>
1109 #if !($condition)
1110 #error "unsatisfied condition: $condition"
1111 #endif
1112 EOF
1113 }
1114
1115 apply(){
1116 file=$1
1117 shift
1118 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1119 }
1120
1121 cp_if_changed(){
1122 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1123 mkdir -p "$(dirname $2)"
1124 $cp_f "$1" "$2"
1125 }
1126
1127 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1128 # system-dependent things.
1129
1130 COMPONENT_LIST="
1131 bsfs
1132 decoders
1133 demuxers
1134 encoders
1135 filters
1136 hwaccels
1137 indevs
1138 muxers
1139 outdevs
1140 parsers
1141 protocols
1142 "
1143
1144 EXAMPLE_LIST="
1145 avcodec_example
1146 filter_audio_example
1147 metadata_example
1148 output_example
1149 qsvdec_example
1150 transcode_aac_example
1151 "
1152
1153 EXTERNAL_LIBRARY_LIST="
1154 avisynth
1155 bzlib
1156 frei0r
1157 gnutls
1158 libbs2b
1159 libcdio
1160 libdc1394
1161 libdcadec
1162 libfaac
1163 libfdk_aac
1164 libfontconfig
1165 libfreetype
1166 libgsm
1167 libilbc
1168 libmfx
1169 libmp3lame
1170 libopencore_amrnb
1171 libopencore_amrwb
1172 libopencv
1173 libopenh264
1174 libopenjpeg
1175 libopus
1176 libpulse
1177 librtmp
1178 libschroedinger
1179 libspeex
1180 libtheora
1181 libtwolame
1182 libvo_aacenc
1183 libvo_amrwbenc
1184 libvorbis
1185 libvpx
1186 libwavpack
1187 libwebp
1188 libx264
1189 libx265
1190 libxavs
1191 libxcb
1192 libxcb_shm
1193 libxcb_xfixes
1194 libxvid
1195 mmal
1196 nvenc
1197 openssl
1198 x11grab
1199 zlib
1200 "
1201
1202 FEATURE_LIST="
1203 gray
1204 hardcoded_tables
1205 runtime_cpudetect
1206 safe_bitstream_reader
1207 shared
1208 small
1209 sram
1210 static
1211 swscale_alpha
1212 "
1213
1214 HWACCEL_LIST="
1215 d3d11va
1216 dxva2
1217 vaapi
1218 vda
1219 vdpau
1220 "
1221
1222 LIBRARY_LIST="
1223 avcodec
1224 avdevice
1225 avfilter
1226 avformat
1227 avresample
1228 avutil
1229 swscale
1230 "
1231
1232 LICENSE_LIST="
1233 gpl
1234 nonfree
1235 version3
1236 "
1237
1238 PROGRAM_LIST="
1239 avconv
1240 avplay
1241 avprobe
1242 "
1243
1244 SUBSYSTEM_LIST="
1245 dct
1246 doc
1247 error_resilience
1248 faan
1249 fft
1250 lsp
1251 lzo
1252 mdct
1253 network
1254 rdft
1255 "
1256
1257 CONFIG_LIST="
1258 $COMPONENT_LIST
1259 $EXAMPLE_LIST
1260 $EXTERNAL_LIBRARY_LIST
1261 $FEATURE_LIST
1262 $HWACCEL_LIST
1263 $LICENSE_LIST
1264 $LIBRARY_LIST
1265 $PROGRAM_LIST
1266 $SUBSYSTEM_LIST
1267 memalign_hack
1268 neon_clobber_test
1269 pic
1270 pod2man
1271 texi2html
1272 thumb
1273 valgrind_backtrace
1274 xmm_clobber_test
1275 "
1276
1277 THREADS_LIST="
1278 pthreads
1279 w32threads
1280 "
1281
1282 ATOMICS_LIST="
1283 atomics_gcc
1284 atomics_suncc
1285 atomics_win32
1286 "
1287
1288 ARCH_LIST="
1289 aarch64
1290 alpha
1291 arm
1292 avr32
1293 avr32_ap
1294 avr32_uc
1295 bfin
1296 ia64
1297 m68k
1298 mips
1299 mips64
1300 parisc
1301 ppc
1302 ppc64
1303 s390
1304 sh4
1305 sparc
1306 sparc64
1307 tilegx
1308 tilepro
1309 tomi
1310 x86
1311 x86_32
1312 x86_64
1313 "
1314
1315 ARCH_EXT_LIST_ARM="
1316 armv5te
1317 armv6
1318 armv6t2
1319 armv8
1320 neon
1321 vfp
1322 vfpv3
1323 "
1324
1325 ARCH_EXT_LIST_X86_SIMD="
1326 amd3dnow
1327 amd3dnowext
1328 avx
1329 avx2
1330 fma3
1331 fma4
1332 mmx
1333 mmxext
1334 sse
1335 sse2
1336 sse3
1337 sse4
1338 sse42
1339 ssse3
1340 xop
1341 "
1342
1343 ARCH_EXT_LIST_PPC="
1344 altivec
1345 dcbzl
1346 ldbrx
1347 power8
1348 ppc4xx
1349 vsx
1350 "
1351
1352 ARCH_EXT_LIST_X86="
1353 $ARCH_EXT_LIST_X86_SIMD
1354 cpunop
1355 i686
1356 "
1357
1358 ARCH_EXT_LIST="
1359 $ARCH_EXT_LIST_ARM
1360 $ARCH_EXT_LIST_PPC
1361 $ARCH_EXT_LIST_X86
1362 loongson
1363 vis
1364 "
1365
1366 ARCH_FEATURES="
1367 aligned_stack
1368 fast_64bit
1369 fast_clz
1370 fast_cmov
1371 local_aligned_8
1372 local_aligned_16
1373 simd_align_16
1374 "
1375
1376 BUILTIN_LIST="
1377 atomic_cas_ptr
1378 machine_rw_barrier
1379 MemoryBarrier
1380 mm_empty
1381 rdtsc
1382 sync_val_compare_and_swap
1383 "
1384 HAVE_LIST_CMDLINE="
1385 inline_asm
1386 symver
1387 yasm
1388 "
1389
1390 HAVE_LIST_PUB="
1391 bigendian
1392 fast_unaligned
1393 "
1394
1395 HEADERS_LIST="
1396 alsa_asoundlib_h
1397 altivec_h
1398 arpa_inet_h
1399 cdio_paranoia_h
1400 cdio_paranoia_paranoia_h
1401 dev_bktr_ioctl_bt848_h
1402 dev_bktr_ioctl_meteor_h
1403 dev_ic_bt8xx_h
1404 dev_video_bktr_ioctl_bt848_h
1405 dev_video_meteor_ioctl_meteor_h
1406 direct_h
1407 dlfcn_h
1408 d3d11_h
1409 dxva_h
1410 gsm_h
1411 io_h
1412 mach_mach_time_h
1413 machine_ioctl_bt848_h
1414 machine_ioctl_meteor_h
1415 malloc_h
1416 poll_h
1417 sndio_h
1418 soundcard_h
1419 sys_mman_h
1420 sys_param_h
1421 sys_resource_h
1422 sys_select_h
1423 sys_soundcard_h
1424 sys_time_h
1425 sys_un_h
1426 sys_videoio_h
1427 unistd_h
1428 valgrind_valgrind_h
1429 windows_h
1430 winsock2_h
1431 "
1432
1433 INTRINSICS_LIST="
1434 intrinsics_neon
1435 "
1436
1437 MATH_FUNCS="
1438 atanf
1439 atan2f
1440 cbrtf
1441 cosf
1442 exp2
1443 exp2f
1444 expf
1445 isinf
1446 isnan
1447 ldexpf
1448 llrint
1449 llrintf
1450 log2
1451 log2f
1452 log10f
1453 lrint
1454 lrintf
1455 powf
1456 rint
1457 round
1458 roundf
1459 sinf
1460 trunc
1461 truncf
1462 "
1463
1464 SYSTEM_FUNCS="
1465 aligned_malloc
1466 clock_gettime
1467 closesocket
1468 CommandLineToArgvW
1469 CoTaskMemFree
1470 CryptGenRandom
1471 dlopen
1472 fcntl
1473 flt_lim
1474 fork
1475 getaddrinfo
1476 gethrtime
1477 getopt
1478 GetProcessAffinityMask
1479 GetProcessMemoryInfo
1480 GetProcessTimes
1481 getrusage
1482 getservbyport
1483 GetSystemTimeAsFileTime
1484 gettimeofday
1485 gmtime_r
1486 inet_aton
1487 isatty
1488 jack_port_get_latency_range
1489 LoadLibrary
1490 localtime_r
1491 mach_absolute_time
1492 MapViewOfFile
1493 memalign
1494 mkstemp
1495 mmap
1496 mprotect
1497 nanosleep
1498 posix_memalign
1499 sched_getaffinity
1500 SetConsoleTextAttribute
1501 setmode
1502 setrlimit
1503 Sleep
1504 strerror_r
1505 sysconf
1506 sysctl
1507 usleep
1508 VirtualAlloc
1509 "
1510
1511 TOOLCHAIN_FEATURES="
1512 as_dn_directive
1513 as_func
1514 as_object_arch
1515 asm_mod_q
1516 attribute_may_alias
1517 attribute_packed
1518 ebp_available
1519 ebx_available
1520 gnu_as
1521 ibm_asm
1522 inline_asm_labels
1523 pragma_deprecated
1524 symver_asm_label
1525 symver_gnu_asm
1526 vfp_args
1527 xform_asm
1528 xmm_clobbers
1529 "
1530
1531 TYPES_LIST="
1532 CONDITION_VARIABLE_Ptr
1533 socklen_t
1534 struct_addrinfo
1535 struct_group_source_req
1536 struct_ip_mreq_source
1537 struct_ipv6_mreq
1538 struct_pollfd
1539 struct_rusage_ru_maxrss
1540 struct_sockaddr_in6
1541 struct_sockaddr_sa_len
1542 struct_sockaddr_storage
1543 struct_v4l2_frmivalenum_discrete
1544 "
1545
1546 HAVE_LIST="
1547 $ARCH_EXT_LIST
1548 $(add_suffix _external $ARCH_EXT_LIST)
1549 $(add_suffix _inline $ARCH_EXT_LIST)
1550 $ARCH_FEATURES
1551 $ATOMICS_LIST
1552 $BUILTIN_LIST
1553 $HAVE_LIST_CMDLINE
1554 $HAVE_LIST_PUB
1555 $HEADERS_LIST
1556 $INTRINSICS_LIST
1557 $MATH_FUNCS
1558 $SYSTEM_FUNCS
1559 $THREADS_LIST
1560 $TOOLCHAIN_FEATURES
1561 $TYPES_LIST
1562 atomics_native
1563 dos_paths
1564 dxva2_lib
1565 libc_msvcrt
1566 libdc1394_1
1567 libdc1394_2
1568 sdl
1569 section_data_rel_ro
1570 threads
1571 vaapi_x11
1572 vdpau_x11
1573 xlib
1574 "
1575
1576 # options emitted with CONFIG_ prefix but not available on the command line
1577 CONFIG_EXTRA="
1578 aandcttables
1579 ac3dsp
1580 audio_frame_queue
1581 audiodsp
1582 blockdsp
1583 bswapdsp
1584 cabac
1585 dvprofile
1586 faandct
1587 faanidct
1588 fdctdsp
1589 fmtconvert
1590 gcrypt
1591 gmp
1592 golomb
1593 gplv3
1594 h263dsp
1595 h264chroma
1596 h264dsp
1597 h264pred
1598 h264qpel
1599 hpeldsp
1600 huffman
1601 huffyuvdsp
1602 huffyuvencdsp
1603 idctdsp
1604 iirfilter
1605 imdct15
1606 intrax8
1607 jpegtables
1608 lgplv3
1609 lpc
1610 me_cmp
1611 mpeg_er
1612 mpegaudio
1613 mpegaudiodsp
1614 mpegvideo
1615 mpegvideoenc
1616 pixblockdsp
1617 qpeldsp
1618 qsv
1619 qsvdec
1620 qsvenc
1621 rangecoder
1622 riffdec
1623 riffenc
1624 rtpdec
1625 rtpenc_chain
1626 sinewin
1627 snappy
1628 startcode
1629 tpeldsp
1630 videodsp
1631 vp3dsp
1632 wma_freqs
1633 "
1634
1635 CMDLINE_SELECT="
1636 $ARCH_EXT_LIST
1637 $CONFIG_LIST
1638 $HAVE_LIST_CMDLINE
1639 $THREADS_LIST
1640 asm
1641 cross_compile
1642 debug
1643 extra_warnings
1644 logging
1645 lto
1646 optimizations
1647 rpath
1648 "
1649
1650 PATHS_LIST="
1651 bindir
1652 datadir
1653 docdir
1654 incdir
1655 libdir
1656 mandir
1657 prefix
1658 shlibdir
1659 "
1660
1661 CMDLINE_SET="
1662 $PATHS_LIST
1663 ar
1664 arch
1665 as
1666 build_suffix
1667 cc
1668 cpu
1669 cross_prefix
1670 dep_cc
1671 env
1672 extra_version
1673 host_cc
1674 host_cflags
1675 host_ld
1676 host_ldflags
1677 host_libs
1678 host_os
1679 ld
1680 logfile
1681 malloc_prefix
1682 nm
1683 optflags
1684 pkg_config
1685 pkg_config_flags
1686 random_seed
1687 samples
1688 sysinclude
1689 sysroot
1690 target_exec
1691 target_os
1692 target_path
1693 target_samples
1694 toolchain
1695 "
1696
1697 CMDLINE_APPEND="
1698 extra_cflags
1699 host_cppflags
1700 "
1701
1702 # code dependency declarations
1703
1704 # architecture extensions
1705
1706 armv5te_deps="arm"
1707 armv6_deps="arm"
1708 armv6t2_deps="arm"
1709 armv8_deps="aarch64"
1710 neon_deps_any="aarch64 arm"
1711 intrinsics_neon_deps="neon"
1712 vfp_deps_any="aarch64 arm"
1713 vfpv3_deps="vfp"
1714
1715 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1716
1717 altivec_deps="ppc"
1718 ppc4xx_deps="ppc"
1719 vsx_deps="altivec"
1720 power8_deps="vsx"
1721
1722 cpunop_deps="i686"
1723 x86_64_select="i686"
1724 x86_64_suggest="fast_cmov"
1725
1726 amd3dnow_deps="mmx"
1727 amd3dnowext_deps="amd3dnow"
1728 i686_deps="x86"
1729 mmx_deps="x86"
1730 mmxext_deps="mmx"
1731 sse_deps="mmxext"
1732 sse2_deps="sse"
1733 sse3_deps="sse2"
1734 ssse3_deps="sse3"
1735 sse4_deps="ssse3"
1736 sse42_deps="sse4"
1737 avx_deps="sse42"
1738 xop_deps="avx"
1739 fma3_deps="avx"
1740 fma4_deps="avx"
1741 avx2_deps="avx"
1742
1743 mmx_external_deps="yasm"
1744 mmx_inline_deps="inline_asm"
1745 mmx_suggest="mmx_external mmx_inline"
1746
1747 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1748 eval dep=\$${ext}_deps
1749 eval ${ext}_external_deps='"${dep}_external"'
1750 eval ${ext}_inline_deps='"${dep}_inline"'
1751 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1752 done
1753
1754 aligned_stack_if_any="aarch64 ppc x86"
1755 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1756 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1757 fast_unaligned_if_any="aarch64 ppc x86"
1758 simd_align_16_if_any="altivec neon sse"
1759
1760 # system capabilities
1761 symver_if_any="symver_asm_label symver_gnu_asm"
1762 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1763
1764 # threading support
1765 atomics_gcc_if="sync_val_compare_and_swap"
1766 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1767 atomics_win32_if="MemoryBarrier"
1768 atomics_native_if_any="$ATOMICS_LIST"
1769 w32threads_deps="atomics_native"
1770 threads_if_any="$THREADS_LIST"
1771
1772 # subsystems
1773 dct_select="rdft"
1774 error_resilience_select="me_cmp"
1775 faandct_deps="faan fdctdsp"
1776 faanidct_deps="faan idctdsp"
1777 intrax8_select="error_resilience"
1778 mdct_select="fft"
1779 rdft_select="fft"
1780 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1781 mpeg_er_select="error_resilience"
1782 mpegaudio_select="mpegaudiodsp"
1783 mpegaudiodsp_select="dct"
1784 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1785 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1786 nvenc_deps_any="dlopen LoadLibrary"
1787 nvenc_extralibs='$ldl'
1788 qsvdec_select="qsv"
1789 qsvenc_select="qsv"
1790
1791 # decoders / encoders
1792 aac_decoder_select="imdct15 mdct sinewin"
1793 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1794 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1795 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1796 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1797 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1798 aic_decoder_select="golomb idctdsp"
1799 alac_encoder_select="lpc"
1800 als_decoder_select="bswapdsp"
1801 amrnb_decoder_select="lsp"
1802 amrwb_decoder_select="lsp"
1803 amv_decoder_select="sp5x_decoder"
1804 ape_decoder_select="bswapdsp"
1805 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1806 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1807 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1808 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1809 atrac1_decoder_select="mdct sinewin"
1810 atrac3_decoder_select="mdct"
1811 atrac3p_decoder_select="mdct sinewin"
1812 bink_decoder_select="blockdsp hpeldsp"
1813 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1814 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1815 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1816 cllc_decoder_select="bswapdsp"
1817 comfortnoise_encoder_select="lpc"
1818 cook_decoder_select="audiodsp mdct sinewin"
1819 cscd_decoder_select="lzo"
1820 cscd_decoder_suggest="zlib"
1821 dca_decoder_select="fmtconvert mdct"
1822 dnxhd_decoder_select="blockdsp idctdsp"
1823 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1824 dvvideo_decoder_select="dvprofile idctdsp"
1825 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1826 dxa_decoder_deps="zlib"
1827 eac3_decoder_select="ac3_decoder"
1828 eac3_encoder_select="ac3_encoder"
1829 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1830 eatgq_decoder_select="aandcttables idctdsp"
1831 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1832 exr_decoder_deps="zlib"
1833 ffv1_decoder_select="golomb rangecoder"
1834 ffv1_encoder_select="rangecoder"
1835 ffvhuff_decoder_select="huffyuv_decoder"
1836 ffvhuff_encoder_select="huffyuv_encoder"
1837 fic_decoder_select="golomb"
1838 flac_decoder_select="golomb"
1839 flac_encoder_select="bswapdsp golomb lpc"
1840 flashsv_decoder_deps="zlib"
1841 flashsv_encoder_deps="zlib"
1842 flashsv2_decoder_deps="zlib"
1843 flv_decoder_select="h263_decoder"
1844 flv_encoder_select="h263_encoder"
1845 fourxm_decoder_select="blockdsp bswapdsp"
1846 fraps_decoder_select="bswapdsp huffman"
1847 g2m_decoder_deps="zlib"
1848 g2m_decoder_select="blockdsp idctdsp jpegtables"
1849 h261_decoder_select="mpeg_er mpegvideo"
1850 h261_encoder_select="aandcttables mpegvideoenc"
1851 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1852 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1853 h263i_decoder_select="h263_decoder"
1854 h263p_encoder_select="h263_encoder"
1855 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1856 h264_decoder_suggest="error_resilience"
1857 h264_nvenc_encoder_deps="nvenc"
1858 h264_qsv_decoder_deps="libmfx"
1859 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1860 h264_qsv_encoder_deps="libmfx"
1861 h264_qsv_encoder_select="qsvenc"
1862 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1863 hevc_nvenc_encoder_deps="nvenc"
1864 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1865 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1866 iac_decoder_select="imc_decoder"
1867 imc_decoder_select="bswapdsp fft mdct sinewin"
1868 indeo3_decoder_select="hpeldsp"
1869 interplay_video_decoder_select="hpeldsp"
1870 jpegls_decoder_select="golomb mjpeg_decoder"
1871 jpegls_encoder_select="golomb"
1872 jv_decoder_select="blockdsp"
1873 lagarith_decoder_select="huffyuvdsp"
1874 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1875 loco_decoder_select="golomb"
1876 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1877 metasound_decoder_select="lsp mdct sinewin"
1878 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1879 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1880 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1881 mjpegb_decoder_select="mjpeg_decoder"
1882 mlp_decoder_select="mlp_parser"
1883 motionpixels_decoder_select="bswapdsp"
1884 mp1_decoder_select="mpegaudio"
1885 mp1float_decoder_select="mpegaudio"
1886 mp2_decoder_select="mpegaudio"
1887 mp2float_decoder_select="mpegaudio"
1888 mp3_decoder_select="mpegaudio"
1889 mp3adu_decoder_select="mpegaudio"
1890 mp3adufloat_decoder_select="mpegaudio"
1891 mp3float_decoder_select="mpegaudio"
1892 mp3on4_decoder_select="mpegaudio"
1893 mp3on4float_decoder_select="mpegaudio"
1894 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1895 mpc8_decoder_select="mpegaudiodsp"
1896 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1897 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1898 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1899 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1900 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1901 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1902 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1903 mpeg4_encoder_select="h263_encoder"
1904 msmpeg4v1_decoder_select="h263_decoder"
1905 msmpeg4v2_decoder_select="h263_decoder"
1906 msmpeg4v2_encoder_select="h263_encoder"
1907 msmpeg4v3_decoder_select="h263_decoder"
1908 msmpeg4v3_encoder_select="h263_encoder"
1909 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1910 mxpeg_decoder_select="mjpeg_decoder"
1911 nellymoser_decoder_select="mdct sinewin"
1912 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1913 nuv_decoder_select="idctdsp lzo"
1914 on2avc_decoder_select="mdct"
1915 opus_decoder_deps="avresample"
1916 opus_decoder_select="imdct15"
1917 png_decoder_deps="zlib"
1918 png_encoder_deps="zlib"
1919 png_encoder_select="huffyuvencdsp"
1920 prores_decoder_select="idctdsp"
1921 prores_encoder_select="fdctdsp"
1922 qcelp_decoder_select="lsp"
1923 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1924 ra_144_encoder_select="audio_frame_queue lpc"
1925 ralf_decoder_select="golomb"
1926 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1927 rv10_encoder_select="h263_encoder"
1928 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1929 rv20_encoder_select="h263_encoder"
1930 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1931 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1932 shorten_decoder_select="golomb"
1933 sipr_decoder_select="lsp"
1934 sp5x_decoder_select="mjpeg_decoder"
1935 svq1_decoder_select="hpeldsp"
1936 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1937 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1938 svq3_decoder_suggest="zlib"
1939 tak_decoder_select="audiodsp"
1940 tdsc_decoder_deps="zlib"
1941 tdsc_decoder_select="mjpeg_decoder"
1942 theora_decoder_select="vp3_decoder"
1943 thp_decoder_select="mjpeg_decoder"
1944 tiff_decoder_suggest="zlib"
1945 tiff_encoder_suggest="zlib"
1946 truehd_decoder_select="mlp_decoder"
1947 truemotion2_decoder_select="bswapdsp"
1948 truespeech_decoder_select="bswapdsp"
1949 tscc_decoder_deps="zlib"
1950 twinvq_decoder_select="mdct lsp sinewin"
1951 utvideo_decoder_select="bswapdsp"
1952 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1953 vble_decoder_select="huffyuvdsp"
1954 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1955 vc1image_decoder_select="vc1_decoder"
1956 vorbis_decoder_select="mdct"
1957 vorbis_encoder_select="mdct"
1958 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1959 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1960 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1961 vp6a_decoder_select="vp6_decoder"
1962 vp6f_decoder_select="vp6_decoder"
1963 vp7_decoder_select="h264pred videodsp"
1964 vp8_decoder_select="h264pred videodsp"
1965 vp9_decoder_select="videodsp"
1966 webp_decoder_select="vp8_decoder"
1967 wmapro_decoder_select="mdct sinewin wma_freqs"
1968 wmav1_decoder_select="mdct sinewin wma_freqs"
1969 wmav1_encoder_select="mdct sinewin wma_freqs"
1970 wmav2_decoder_select="mdct sinewin wma_freqs"
1971 wmav2_encoder_select="mdct sinewin wma_freqs"
1972 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1973 wmv1_decoder_select="h263_decoder"
1974 wmv1_encoder_select="h263_encoder"
1975 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1976 wmv2_encoder_select="h263_encoder"
1977 wmv3_decoder_select="vc1_decoder"
1978 wmv3image_decoder_select="wmv3_decoder"
1979 zerocodec_decoder_deps="zlib"
1980 zlib_decoder_deps="zlib"
1981 zlib_encoder_deps="zlib"
1982 zmbv_decoder_deps="zlib"
1983 zmbv_encoder_deps="zlib"
1984
1985 # hardware accelerators
1986 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
1987 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
1988 vaapi_deps="va_va_h"
1989 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1990 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1991 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1992
1993 h263_vaapi_hwaccel_deps="vaapi"
1994 h263_vaapi_hwaccel_select="h263_decoder"
1995 h263_vdpau_hwaccel_deps="vdpau"
1996 h263_vdpau_hwaccel_select="h263_decoder"
1997 h264_d3d11va_hwaccel_deps="d3d11va"
1998 h264_d3d11va_hwaccel_select="h264_decoder"
1999 h264_dxva2_hwaccel_deps="dxva2"
2000 h264_dxva2_hwaccel_select="h264_decoder"
2001 h264_mmal_decoder_deps="mmal"
2002 h264_mmal_hwaccel_deps="mmal"
2003 h264_mmal_decoder_select="h264_decoder"
2004 h264_mmal_encoder_deps="mmal"
2005 h264_qsv_hwaccel_deps="libmfx"
2006 h264_vaapi_hwaccel_deps="vaapi"
2007 h264_vaapi_hwaccel_select="h264_decoder"
2008 h264_vda_hwaccel_deps="vda"
2009 h264_vda_hwaccel_select="h264_decoder"
2010 h264_vda_old_hwaccel_deps="vda"
2011 h264_vda_old_hwaccel_select="h264_decoder"
2012 h264_vdpau_hwaccel_deps="vdpau"
2013 h264_vdpau_hwaccel_select="h264_decoder"
2014 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2015 hevc_d3d11va_hwaccel_select="hevc_decoder"
2016 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2017 hevc_dxva2_hwaccel_select="hevc_decoder"
2018 mpeg1_vdpau_hwaccel_deps="vdpau"
2019 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2020 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2021 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2022 mpeg2_dxva2_hwaccel_deps="dxva2"
2023 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2024 mpeg2_vaapi_hwaccel_deps="vaapi"
2025 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2026 mpeg2_vdpau_hwaccel_deps="vdpau"
2027 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2028 mpeg4_vaapi_hwaccel_deps="vaapi"
2029 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2030 mpeg4_vdpau_hwaccel_deps="vdpau"
2031 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2032 vc1_d3d11va_hwaccel_deps="d3d11va"
2033 vc1_d3d11va_hwaccel_select="vc1_decoder"
2034 vc1_dxva2_hwaccel_deps="dxva2"
2035 vc1_dxva2_hwaccel_select="vc1_decoder"
2036 vc1_vaapi_hwaccel_deps="vaapi"
2037 vc1_vaapi_hwaccel_select="vc1_decoder"
2038 vc1_vdpau_hwaccel_deps="vdpau"
2039 vc1_vdpau_hwaccel_select="vc1_decoder"
2040 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2041 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2042 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2043 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2044
2045 # parsers
2046 h264_parser_select="h264_decoder"
2047 mpegvideo_parser_select="mpegvideo"
2048 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2049 vc1_parser_select="mpegvideo startcode vc1_decoder"
2050
2051 # bitstream_filters
2052 mjpeg2jpeg_bsf_select="jpegtables"
2053
2054 # external libraries
2055 libdcadec_decoder_deps="libdcadec"
2056 libfaac_encoder_deps="libfaac"
2057 libfaac_encoder_select="audio_frame_queue"
2058 libfdk_aac_decoder_deps="libfdk_aac"
2059 libfdk_aac_encoder_deps="libfdk_aac"
2060 libfdk_aac_encoder_select="audio_frame_queue"
2061 libgsm_decoder_deps="libgsm"
2062 libgsm_encoder_deps="libgsm"
2063 libgsm_ms_decoder_deps="libgsm"
2064 libgsm_ms_encoder_deps="libgsm"
2065 libilbc_decoder_deps="libilbc"
2066 libilbc_encoder_deps="libilbc"
2067 libmp3lame_encoder_deps="libmp3lame"
2068 libmp3lame_encoder_select="audio_frame_queue"
2069 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2070 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2071 libopencore_amrnb_encoder_select="audio_frame_queue"
2072 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2073 libopenh264_encoder_deps="libopenh264"
2074 libopenjpeg_decoder_deps="libopenjpeg"
2075 libopenjpeg_encoder_deps="libopenjpeg"
2076 libopus_decoder_deps="libopus"
2077 libopus_encoder_deps="libopus"
2078 libopus_encoder_select="audio_frame_queue"
2079 libschroedinger_decoder_deps="libschroedinger"
2080 libschroedinger_encoder_deps="libschroedinger"
2081 libspeex_decoder_deps="libspeex"
2082 libspeex_encoder_deps="libspeex"
2083 libspeex_encoder_select="audio_frame_queue"
2084 libtheora_encoder_deps="libtheora"
2085 libtwolame_encoder_deps="libtwolame"
2086 libvo_aacenc_encoder_deps="libvo_aacenc"
2087 libvo_aacenc_encoder_select="audio_frame_queue"
2088 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2089 libvorbis_encoder_deps="libvorbis"
2090 libvorbis_encoder_select="audio_frame_queue"
2091 libvpx_vp8_decoder_deps="libvpx"
2092 libvpx_vp8_encoder_deps="libvpx"
2093 libvpx_vp9_decoder_deps="libvpx"
2094 libvpx_vp9_encoder_deps="libvpx"
2095 libwavpack_encoder_deps="libwavpack"
2096 libwebp_encoder_deps="libwebp"
2097 libx264_encoder_deps="libx264"
2098 libx265_encoder_deps="libx265"
2099 libxavs_encoder_deps="libxavs"
2100 libxvid_encoder_deps="libxvid"
2101
2102 # demuxers / muxers
2103 ac3_demuxer_select="ac3_parser"
2104 asf_demuxer_select="riffdec"
2105 asf_muxer_select="riffenc"
2106 asf_stream_muxer_select="asf_muxer"
2107 avi_demuxer_select="riffdec"
2108 avi_muxer_select="riffenc"
2109 avisynth_demuxer_deps="avisynth"
2110 avisynth_demuxer_select="riffdec"
2111 caf_demuxer_select="riffdec"
2112 dash_muxer_select="mp4_muxer"
2113 dirac_demuxer_select="dirac_parser"
2114 dv_demuxer_select="dvprofile"
2115 dv_muxer_select="dvprofile"
2116 dxa_demuxer_select="riffdec"
2117 eac3_demuxer_select="ac3_parser"
2118 f4v_muxer_select="mov_muxer"
2119 flac_demuxer_select="flac_parser"
2120 hds_muxer_select="flv_muxer"
2121 hls_muxer_select="mpegts_muxer"
2122 ipod_muxer_select="mov_muxer"
2123 ismv_muxer_select="mov_muxer"
2124 matroska_audio_muxer_select="matroska_muxer"
2125 matroska_demuxer_select="riffdec"
2126 matroska_demuxer_suggest="bzlib lzo zlib"
2127 matroska_muxer_select="riffenc"
2128 mmf_muxer_select="riffenc"
2129 mov_demuxer_select="riffdec"
2130 mov_demuxer_suggest="zlib"
2131 mov_muxer_select="riffenc rtpenc_chain"
2132 mp3_demuxer_select="mpegaudio_parser"
2133 mp4_muxer_select="mov_muxer"
2134 mpegts_muxer_select="adts_muxer latm_muxer"
2135 mpegtsraw_demuxer_select="mpegts_demuxer"
2136 mxf_d10_muxer_select="mxf_muxer"
2137 nut_muxer_select="riffenc"
2138 nuv_demuxer_select="riffdec"
2139 oga_muxer_select="ogg_muxer"
2140 ogg_demuxer_select="golomb"
2141 opus_muxer_select="ogg_muxer"
2142 psp_muxer_select="mov_muxer"
2143 rtp_demuxer_select="sdp_demuxer"
2144 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2145 rtsp_demuxer_select="http_protocol rtpdec"
2146 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2147 sap_demuxer_select="sdp_demuxer"
2148 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2149 sdp_demuxer_select="rtpdec"
2150 smoothstreaming_muxer_select="ismv_muxer"
2151 spdif_muxer_select="aac_parser"
2152 spx_muxer_select="ogg_muxer"
2153 tak_demuxer_select="tak_parser"
2154 tg2_muxer_select="mov_muxer"
2155 tgp_muxer_select="mov_muxer"
2156 w64_demuxer_select="wav_demuxer"
2157 wav_demuxer_select="riffdec"
2158 wav_muxer_select="riffenc"
2159 webm_muxer_select="riffenc"
2160 wtv_demuxer_select="riffdec"
2161 xmv_demuxer_select="riffdec"
2162 xwma_demuxer_select="riffdec"
2163
2164 # indevs / outdevs
2165 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2166 alsa_outdev_deps="alsa_asoundlib_h"
2167 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2168 dv1394_indev_deps="dv1394"
2169 dv1394_indev_select="dv_demuxer"
2170 fbdev_indev_deps="linux_fb_h"
2171 jack_indev_deps="jack_jack_h pthreads"
2172 libcdio_indev_deps="libcdio"
2173 libdc1394_indev_deps="libdc1394"
2174 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2175 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2176 pulse_indev_deps="libpulse"
2177 sndio_indev_deps="sndio_h"
2178 sndio_outdev_deps="sndio_h"
2179 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2180 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2181 vfwcap_indev_extralibs="-lavicap32"
2182 x11grab_indev_deps="x11grab"
2183 x11grab_xcb_indev_deps="libxcb"
2184
2185 # protocols
2186 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2187 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2188 ffrtmpcrypt_protocol_select="tcp_protocol"
2189 ffrtmphttp_protocol_deps="!librtmp_protocol"
2190 ffrtmphttp_protocol_select="http_protocol"
2191 gopher_protocol_select="network"
2192 http_protocol_select="tcp_protocol"
2193 httpproxy_protocol_select="tcp_protocol"
2194 https_protocol_select="tls_protocol"
2195 icecast_protocol_select="http_protocol"
2196 librtmp_protocol_deps="librtmp"
2197 librtmpe_protocol_deps="librtmp"
2198 librtmps_protocol_deps="librtmp"
2199 librtmpt_protocol_deps="librtmp"
2200 librtmpte_protocol_deps="librtmp"
2201 mmsh_protocol_select="http_protocol"
2202 mmst_protocol_select="network"
2203 rtmp_protocol_deps="!librtmp_protocol"
2204 rtmp_protocol_select="tcp_protocol"
2205 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2206 rtmps_protocol_deps="!librtmp_protocol"
2207 rtmps_protocol_select="tls_protocol"
2208 rtmpt_protocol_select="ffrtmphttp_protocol"
2209 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2210 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2211 rtp_protocol_select="udp_protocol"
2212 sctp_protocol_deps="struct_sctp_event_subscribe"
2213 sctp_protocol_select="network"
2214 srtp_protocol_select="rtp_protocol"
2215 tcp_protocol_select="network"
2216 tls_gnutls_protocol_deps="gnutls"
2217 tls_gnutls_protocol_select="tcp_protocol"
2218 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2219 tls_openssl_protocol_select="tcp_protocol"
2220 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2221 udp_protocol_select="network"
2222 unix_protocol_deps="sys_un_h"
2223 unix_protocol_select="network"
2224
2225 # filters
2226 blackframe_filter_deps="gpl"
2227 boxblur_filter_deps="gpl"
2228 bs2b_filter_deps="libbs2b"
2229 cropdetect_filter_deps="gpl"
2230 delogo_filter_deps="gpl"
2231 drawtext_filter_deps="libfreetype"
2232 frei0r_filter_deps="frei0r dlopen"
2233 frei0r_filter_extralibs='$ldl'
2234 frei0r_src_filter_deps="frei0r dlopen"
2235 frei0r_src_filter_extralibs='$ldl'
2236 hqdn3d_filter_deps="gpl"
2237 interlace_filter_deps="gpl"
2238 ocv_filter_deps="libopencv"
2239 resample_filter_deps="avresample"
2240 scale_filter_deps="swscale"
2241
2242 # examples
2243 avcodec_example_deps="avcodec avutil"
2244 filter_audio_example_deps="avfilter avutil"
2245 metadata_example_deps="avformat avutil"
2246 output_example_deps="avcodec avformat avutil swscale"
2247 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2248 transcode_aac_example_deps="avcodec avformat avresample"
2249
2250 # libraries, in linking order
2251 avcodec_deps="avutil"
2252 avdevice_deps="avformat avcodec avutil"
2253 avfilter_deps="avutil"
2254 avformat_deps="avcodec avutil"
2255 avresample_deps="avutil"
2256 swscale_deps="avutil"
2257
2258 # programs
2259 avconv_deps="avcodec avfilter avformat avresample swscale"
2260 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2261 fps_filter null_filter resample_filter scale_filter
2262 setpts_filter trim_filter"
2263 avplay_deps="avcodec avformat avresample swscale sdl"
2264 avplay_libs='$sdl_libs'
2265 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2266 avprobe_deps="avcodec avformat"
2267
2268 # documentation
2269 pod2man_deps="doc"
2270 texi2html_deps="doc"
2271
2272 # default parameters
2273
2274 logfile="config.log"
2275
2276 # installation paths
2277 prefix_default="/usr/local"
2278 bindir_default='${prefix}/bin'
2279 datadir_default='${prefix}/share/avconv'
2280 docdir_default='${prefix}/share/doc/libav'
2281 incdir_default='${prefix}/include'
2282 libdir_default='${prefix}/lib'
2283 mandir_default='${prefix}/share/man'
2284 shlibdir_default="$libdir_default"
2285
2286 # toolchain
2287 ar_default="ar"
2288 cc_default="gcc"
2289 host_cc_default="gcc"
2290 cp_f="cp -f"
2291 ln_s="ln -s -f"
2292 nm_default="nm -g"
2293 objformat="elf"
2294 pkg_config_default=pkg-config
2295 ranlib="ranlib"
2296 strip="strip"
2297 yasmexe="yasm"
2298
2299 # machine
2300 arch_default=$(uname -m)
2301 cpu="generic"
2302 intrinsics="none"
2303
2304 # OS
2305 target_os_default=$(tolower $(uname -s))
2306 host_os=$target_os_default
2307
2308 # configurable options
2309 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2310
2311 enable asm
2312 enable debug
2313 enable doc
2314 enable faan faandct faanidct
2315 enable optimizations
2316 enable safe_bitstream_reader
2317 enable static
2318 enable swscale_alpha
2319 enable valgrind_backtrace
2320
2321 # By default, enable only those hwaccels that have no external dependencies.
2322 enable d3d11va dxva2 vda vdpau
2323
2324 # build settings
2325 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2326 LIBPREF="lib"
2327 LIBSUF=".a"
2328 FULLNAME='$(NAME)$(BUILDSUF)'
2329 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2330 SLIBPREF="lib"
2331 SLIBSUF=".so"
2332 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2333 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2334 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2335 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2336 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2337 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2338
2339 asflags_filter=echo
2340 cflags_filter=echo
2341 ldflags_filter=echo
2342
2343 AS_C='-c'
2344 AS_O='-o $@'
2345 CC_C='-c'
2346 CC_E='-E -o $@'
2347 CC_O='-o $@'
2348 LD_O='-o $@'
2349 LD_LIB='-l%'
2350 LD_PATH='-L'
2351 HOSTCC_C='-c'
2352 HOSTCC_E='-E -o $@'
2353 HOSTCC_O='-o $@'
2354 HOSTLD_O='-o $@'
2355
2356 host_libs='-lm'
2357 host_cflags_filter=echo
2358 host_ldflags_filter=echo
2359
2360 target_path='$(CURDIR)'
2361
2362 # since the object filename is not given with the -MM flag, the compiler
2363 # is only able to print the basename, and we must add the path ourselves
2364 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2365 DEPFLAGS='-MM'
2366
2367 # find source path
2368 if test -f configure; then
2369 source_path=.
2370 else
2371 source_path=$(cd $(dirname "$0"); pwd)
2372 echo "$source_path" | grep -q '[[:blank:]]' &&
2373 die "Out of tree builds are impossible with whitespace in source path."
2374 test -e "$source_path/config.h" &&
2375 die "Out of tree builds are impossible with config.h in source dir."
2376 fi
2377
2378 for v in "$@"; do
2379 r=${v#*=}
2380 l=${v%"$r"}
2381 r=$(sh_quote "$r")
2382 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2383 done
2384
2385 find_things(){
2386 thing=$1
2387 pattern=$2
2388 file=$source_path/$3
2389 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2390 }
2391
2392 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2393 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2394 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2395 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2396 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2397 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2398 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2399 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2400 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2401 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2402 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2403
2404 ALL_COMPONENTS="
2405 $BSF_LIST
2406 $DECODER_LIST
2407 $DEMUXER_LIST
2408 $ENCODER_LIST
2409 $FILTER_LIST
2410 $HWACCEL_LIST
2411 $INDEV_LIST
2412 $MUXER_LIST
2413 $OUTDEV_LIST
2414 $PARSER_LIST
2415 $PROTOCOL_LIST
2416 "
2417
2418 for n in $COMPONENT_LIST; do
2419 v=$(toupper ${n%s})_LIST
2420 eval enable \$$v
2421 eval ${n}_if_any="\$$v"
2422 done
2423
2424 enable $ARCH_EXT_LIST
2425
2426 die_unknown(){
2427 echo "Unknown option \"$1\"."
2428 echo "See $0 --help for available options."
2429 exit 1
2430 }
2431
2432 print_3_columns() {
2433 cat | tr ' ' '\n' | sort | pr -r -3 -t
2434 }
2435
2436 show_list() {
2437 suffix=_$1
2438 shift
2439 echo $* | sed s/$suffix//g | print_3_columns
2440 exit 0
2441 }
2442
2443 rand_list(){
2444 IFS=', '
2445 set -- $*
2446 unset IFS
2447 for thing; do
2448 comp=${thing%:*}
2449 prob=${thing#$comp}
2450 prob=${prob#:}
2451 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2452 echo "prob ${prob:-0.5}"
2453 printf '%s\n' $comp
2454 done
2455 }
2456
2457 do_random(){
2458 action=$1
2459 shift
2460 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2461 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2462 }
2463
2464 for opt do
2465 optval="${opt#*=}"
2466 case "$opt" in
2467 --extra-ldflags=*)
2468 add_ldflags $optval
2469 ;;
2470 --extra-ldexeflags=*)
2471 add_ldexeflags $optval
2472 ;;
2473 --extra-libs=*)
2474 add_extralibs $optval
2475 ;;
2476 --disable-devices)
2477 disable $INDEV_LIST $OUTDEV_LIST
2478 ;;
2479 --enable-debug=*)
2480 debuglevel="$optval"
2481 ;;
2482 --disable-programs)
2483 disable $PROGRAM_LIST
2484 ;;
2485 --disable-everything)
2486 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2487 ;;
2488 --disable-all)
2489 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2490 disable $LIBRARY_LIST $PROGRAM_LIST doc
2491 ;;
2492 --enable-random|--disable-random)
2493 action=${opt%%-random}
2494 do_random ${action#--} $COMPONENT_LIST
2495 ;;
2496 --enable-random=*|--disable-random=*)
2497 action=${opt%%-random=*}
2498 do_random ${action#--} $optval
2499 ;;
2500 --enable-*=*|--disable-*=*)
2501 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2502 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2503 eval list=\$$(toupper $thing)_LIST
2504 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2505 $action $(filter "$name" $list)
2506 ;;
2507 --enable-avserver|--disable-avserver*)
2508 warn "avserver has been removed, the ${opt} option is only"\
2509 "provided for compatibility and will be removed in the future"
2510 ;;
2511 --enable-?*|--disable-?*)
2512 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2513 if is_in $option $COMPONENT_LIST; then
2514 test $action = disable && action=unset
2515 eval $action \$$(toupper ${option%s})_LIST
2516 elif is_in $option $CMDLINE_SELECT; then
2517 $action $option
2518 else
2519 die_unknown $opt
2520 fi
2521 ;;
2522 --list-*)
2523 NAME="${opt#--list-}"
2524 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2525 NAME=${NAME%s}
2526 eval show_list $NAME \$$(toupper $NAME)_LIST
2527 ;;
2528 --help|-h) show_help
2529 ;;
2530 *)
2531 optname="${opt%%=*}"
2532 optname="${optname#--}"
2533 optname=$(echo "$optname" | sed 's/-/_/g')
2534 if is_in $optname $CMDLINE_SET; then
2535 eval $optname='$optval'
2536 elif is_in $optname $CMDLINE_APPEND; then
2537 append $optname "$optval"
2538 else
2539 die_unknown $opt
2540 fi
2541 ;;
2542 esac
2543 done
2544
2545 for e in $env; do
2546 eval "export $e"
2547 done
2548
2549 disabled logging && logfile=/dev/null
2550
2551 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2552 set >> $logfile
2553
2554 case "$toolchain" in
2555 clang-asan)
2556 cc_default="clang"
2557 add_cflags -fsanitize=address
2558 add_ldflags -fsanitize=address
2559 ;;
2560 clang-tsan)
2561 cc_default="clang"
2562 add_cflags -fsanitize=thread -pie
2563 add_ldflags -fsanitize=thread -pie
2564 ;;
2565 clang-usan)
2566 cc_default="clang"
2567 add_cflags -fsanitize=undefined -O1
2568 add_ldflags -fsanitize=undefined
2569 ;;
2570 gcc-asan)
2571 cc_default="gcc"
2572 add_cflags -fsanitize=address
2573 add_ldflags -fsanitize=address
2574 ;;
2575 gcc-tsan)
2576 cc_default="gcc"
2577 add_cflags -fsanitize=thread -pie -fPIC
2578 add_ldflags -fsanitize=thread -pie -fPIC
2579 ;;
2580 gcc-usan)
2581 cc_default="gcc"
2582 add_cflags -fsanitize=undefined
2583 add_ldflags -fsanitize=undefined
2584 ;;
2585 valgrind-massif)
2586 target_exec_default="valgrind"
2587 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2588 ;;
2589 valgrind-memcheck)
2590 target_exec_default="valgrind"
2591 target_exec_args="--track-origins=yes --leak-check=full"
2592 ;;
2593 msvc)
2594 # Check whether the current MSVC version needs the C99 converter.
2595 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2596 # support enough of C99 to build libav. Default to the new
2597 # behaviour if the regexp was unable to match anything, since this
2598 # successfully parses the version number of existing supported
2599 # versions that require the converter (MSVC 2010 and 2012).
2600 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2601 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2602 cc_default="cl"
2603 else
2604 cc_default="c99wrap cl"
2605 fi
2606 ld_default="link"
2607 nm_default="dumpbin -symbols"
2608 ar_default="lib"
2609 target_os_default="win32"
2610 # Use a relative path for TMPDIR. This makes sure all the
2611 # ffconf temp files are written with a relative path, avoiding
2612 # issues with msys/win32 path conversion for MSVC parameters
2613 # such as -Fo<file> or -out:<file>.
2614 TMPDIR=.
2615 ;;
2616 icl)
2617 cc_default="icl"
2618 ld_default="xilink"
2619 nm_default="dumpbin -symbols"
2620 ar_default="xilib"
2621 target_os_default="win32"
2622 TMPDIR=.
2623 ;;
2624 gcov)
2625 add_cflags -fprofile-arcs -ftest-coverage
2626 add_ldflags -fprofile-arcs -ftest-coverage
2627 ;;
2628 hardened)
2629 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2630 add_cflags -fno-strict-overflow -fstack-protector-all
2631 add_ldflags -Wl,-z,relro -Wl,-z,now
2632 ;;
2633 ?*)
2634 die "Unknown toolchain $toolchain"
2635 ;;
2636 esac
2637
2638 test -n "$cross_prefix" && enable cross_compile
2639
2640 if enabled cross_compile; then
2641 test -n "$arch" && test -n "$target_os" ||
2642 die "Must specify target arch and OS when cross-compiling"
2643 fi
2644
2645 ar_default="${cross_prefix}${ar_default}"
2646 cc_default="${cross_prefix}${cc_default}"
2647 nm_default="${cross_prefix}${nm_default}"
2648 pkg_config_default="${cross_prefix}${pkg_config_default}"
2649 ranlib="${cross_prefix}${ranlib}"
2650 strip="${cross_prefix}${strip}"
2651
2652 sysinclude_default="${sysroot}/usr/include"
2653
2654 set_default arch cc pkg_config sysinclude target_exec target_os
2655 enabled cross_compile || host_cc_default=$cc
2656 set_default host_cc
2657
2658 if ! $pkg_config --version >/dev/null 2>&1; then
2659 warn "$pkg_config not found, library detection may fail."
2660 pkg_config=false
2661 fi
2662
2663 exesuf() {
2664 case $1 in
2665 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2666 esac
2667 }
2668
2669 EXESUF=$(exesuf $target_os)
2670 HOSTEXESUF=$(exesuf $host_os)
2671
2672 # set temporary file name
2673 : ${TMPDIR:=$TEMPDIR}
2674 : ${TMPDIR:=$TMP}
2675 : ${TMPDIR:=/tmp}
2676
2677 if ! check_cmd mktemp -u XXXXXX; then
2678 # simple replacement for missing mktemp
2679 # NOT SAFE FOR GENERAL USE
2680 mktemp(){
2681 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2682 }
2683 fi
2684
2685 tmpfile(){
2686 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2687 (set -C; exec > $tmp) 2>/dev/null ||
2688 die "Unable to create temporary file in $TMPDIR."
2689 append TMPFILES $tmp
2690 eval $1=$tmp
2691 }
2692
2693 trap 'rm -f -- $TMPFILES' EXIT
2694
2695 tmpfile TMPASM .asm
2696 tmpfile TMPC .c
2697 tmpfile TMPE $EXESUF
2698 tmpfile TMPH .h
2699 tmpfile TMPO .o
2700 tmpfile TMPS .S
2701 tmpfile TMPSH .sh
2702 tmpfile TMPV .ver
2703
2704 unset -f mktemp
2705
2706 chmod +x $TMPE
2707
2708 # make sure we can execute files in $TMPDIR
2709 cat > $TMPSH 2>> $logfile <<EOF
2710 #! /bin/sh
2711 EOF
2712 chmod +x $TMPSH >> $logfile 2>&1
2713 if ! $TMPSH >> $logfile 2>&1; then
2714 cat <<EOF
2715 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2716 variable to another directory and make sure that it is not mounted noexec.
2717 EOF
2718 die "Sanity test failed."
2719 fi
2720
2721 armasm_flags(){
2722 for flag; do
2723 case $flag in
2724 # Filter out MSVC cl.exe options from cflags that shouldn't
2725 # be passed to gas-preprocessor
2726 -M[TD]*) ;;
2727 *) echo $flag ;;
2728 esac
2729 done
2730 }
2731
2732 ccc_flags(){
2733 for flag; do
2734 case $flag in
2735 -std=c99) echo -c99 ;;
2736 -mcpu=*) echo -arch ${flag#*=} ;;
2737 -mieee) echo -ieee ;;
2738 -O*|-fast) echo $flag ;;
2739 -fno-math-errno) echo -assume nomath_errno ;;
2740 -g) echo -g3 ;;
2741 -Wall) echo -msg_enable level2 ;;
2742 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2743 -Wl,*) echo $flag ;;
2744 -f*|-W*) ;;
2745 *) echo $flag ;;
2746 esac
2747 done
2748 }
2749
2750 cparser_flags(){
2751 for flag; do
2752 case $flag in
2753 -Wno-switch) echo -Wno-switch-enum ;;
2754 -Wno-format-zero-length) ;;
2755 -Wdisabled-optimization) ;;
2756 -Wno-pointer-sign) echo -Wno-other ;;
2757 *) echo $flag ;;
2758 esac
2759 done
2760 }
2761
2762 msvc_common_flags(){
2763 for flag; do
2764 case $flag in
2765 # In addition to specifying certain flags under the compiler
2766 # specific filters, they must be specified here as well or else the
2767 # generic catch all at the bottom will print the original flag.
2768 -Wall) ;;
2769 -std=c99) ;;
2770 # Common flags
2771 -fomit-frame-pointer) ;;
2772 -g) echo -Z7 ;;
2773 -fno-math-errno) ;;
2774 -fno-common) ;;
2775 -fno-signed-zeros) ;;
2776 -fPIC) ;;
2777 -mthumb) ;;
2778 -march=*) ;;
2779 -lz) echo zlib.lib ;;
2780 -lavifil32) echo vfw32.lib ;;
2781 -lavicap32) echo vfw32.lib user32.lib ;;
2782 -l*) echo ${flag#-l}.lib ;;
2783 -L*) echo -libpath:${flag#-L} ;;
2784 *) echo $flag ;;
2785 esac
2786 done
2787 }
2788
2789 msvc_flags(){
2790 msvc_common_flags "$@"
2791 for flag; do
2792 case $flag in
2793 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2794 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2795 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2796 -wd4273 -wd4554 -wd4701 ;;
2797 esac
2798 done
2799 }
2800
2801 icl_flags(){
2802 msvc_common_flags "$@"
2803 for flag; do
2804 case $flag in
2805 # Despite what Intel's documentation says -Wall, which is supported
2806 # on Windows, does enable remarks so disable them here.
2807 -Wall) echo $flag -Qdiag-disable:remark ;;
2808 -std=c99) echo -Qstd=c99 ;;
2809 esac
2810 done
2811 }
2812
2813 pgi_flags(){
2814 for flag; do
2815 case $flag in
2816 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2817 -fomit-frame-pointer) echo -Mnoframe ;;
2818 -g) echo -gopt ;;
2819 *) echo $flag ;;
2820 esac
2821 done
2822 }
2823
2824 suncc_flags(){
2825 for flag; do
2826 case $flag in
2827 -march=*|-mcpu=*)
2828 case "${flag#*=}" in
2829 native) echo -xtarget=native ;;
2830 v9|niagara) echo -xarch=sparc ;;
2831 ultrasparc) echo -xarch=sparcvis ;;
2832 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2833 i586|pentium) echo -xchip=pentium ;;
2834 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2835 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2836 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2837 pentium4*) echo -xtarget=pentium4 ;;
2838 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2839 *-sse3) echo -xarch=sse3 ;;
2840 core2) echo -xarch=ssse3 -xchip=core2 ;;
2841 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2842 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2843 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2844 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2845 k8|opteron|athlon64|athlon-fx)
2846 echo -xarch=sse2a ;;
2847 athlon*) echo -xarch=pentium_proa ;;
2848 esac
2849 ;;
2850 -std=c99) echo -xc99 ;;
2851 -fomit-frame-pointer) echo -xregs=frameptr ;;
2852 -fPIC) echo -KPIC -xcode=pic32 ;;
2853 -W*,*) echo $flag ;;
2854 -f*-*|-W*|-mimpure-text) ;;
2855 -shared) echo -G ;;
2856 *) echo $flag ;;
2857 esac
2858 done
2859 }
2860
2861 tms470_flags(){
2862 for flag; do
2863 case $flag in
2864 -march=*|-mcpu=*)
2865 case "${flag#*=}" in
2866 armv7-a|cortex-a*) echo -mv=7a8 ;;
2867 armv7-r|cortex-r*) echo -mv=7r4 ;;
2868 armv7-m|cortex-m*) echo -mv=7m3 ;;
2869 armv6*|arm11*) echo -mv=6 ;;
2870 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2871 echo -mv=5e ;;
2872 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2873 esac
2874 ;;
2875 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2876 -mfpu=vfp) echo --float_support=vfpv2 ;;
2877 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2878 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2879 -msoft-float) echo --float_support=vfplib ;;
2880 -O[0-3]|-mf=*) echo $flag ;;
2881 -g) echo -g -mn ;;
2882 -pds=*) echo $flag ;;
2883 -D*|-I*) echo $flag ;;
2884 --gcc|--abi=*) echo $flag ;;
2885 -me) echo $flag ;;
2886 esac
2887 done
2888 }
2889
2890 probe_cc(){
2891 pfx=$1
2892 _cc=$2
2893
2894 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2895 unset _ld_o _ldflags _ld_lib _ld_path
2896 unset _depflags _DEPCMD _DEPFLAGS
2897 _flags_filter=echo
2898
2899 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2900 _type=llvm_gcc
2901 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2902 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2903 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2904 _cflags_speed='-O3'
2905 _cflags_size='-Os'
2906 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2907 _type=gcc
2908 gcc_version=$($_cc --version | head -n1)
2909 gcc_basever=$($_cc -dumpversion)
2910 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2911 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2912 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2913 if ! $_cc -dumpversion | grep -q '^2\.'; then
2914 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2915 fi
2916 _cflags_speed='-O3'
2917 _cflags_size='-Os'
2918 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2919 _type=icc
2920 _ident=$($_cc --version | head -n1)
2921 _depflags='-MMD'
2922 _cflags_speed='-O3'
2923 _cflags_size='-Os'
2924 _cflags_noopt='-O1'
2925 elif $_cc -v 2>&1 | grep -q xlc; then
2926 _type=xlc
2927 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2928 _cflags_speed='-O5'
2929 _cflags_size='-O5 -qcompact'
2930 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2931 _type=ccc
2932 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2933 _DEPFLAGS='-M'
2934 _cflags_speed='-fast'
2935 _cflags_size='-O1'
2936 _flags_filter=ccc_flags
2937 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2938 test -d "$sysroot" || die "No valid sysroot specified."
2939 _type=armcc
2940 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2941 armcc_conf="$PWD/armcc.conf"
2942 $_cc --arm_linux_configure \
2943 --arm_linux_config_file="$armcc_conf" \
2944 --configure_sysroot="$sysroot" \
2945 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2946 die "Error creating armcc configuration file."
2947 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2948 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2949 as_default="${cross_prefix}gcc"
2950 _depflags='-MMD'
2951 _cflags_speed='-O3'
2952 _cflags_size='-Os'
2953 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2954 _type=tms470
2955 _ident=$($_cc -version | head -n1 | tr -s ' ')
2956 _flags='--gcc --abi=eabi -me'
2957 _cc_e='-ppl -fe=$@'
2958 _cc_o='-fe=$@'
2959 _depflags='-ppa -ppd=$(@:.o=.d)'
2960 _cflags_speed='-O3 -mf=5'
2961 _cflags_size='-O3 -mf=2'
2962 _flags_filter=tms470_flags
2963 elif $_cc -v 2>&1 | grep -q clang; then
2964 _type=clang
2965 _ident=$($_cc --version | head -n1)
2966 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2967 _cflags_speed='-O3'
2968 _cflags_size='-Os'
2969 elif $_cc -V 2>&1 | grep -q Sun; then
2970 _type=suncc
2971 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2972 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2973 _DEPFLAGS='-xM1 -xc99'
2974 _ldflags='-std=c99'
2975 _cflags_speed='-O5'
2976 _cflags_size='-O5 -xspace'
2977 _flags_filter=suncc_flags
2978 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2979 _type=pathscale
2980 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2981 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2982 _cflags_speed='-O2'
2983 _cflags_size='-Os'
2984 _flags_filter='filter_out -Wdisabled-optimization'
2985 elif $_cc -v 2>&1 | grep -q Open64; then
2986 _type=open64
2987 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2988 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2989 _cflags_speed='-O2'
2990 _cflags_size='-Os'
2991 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2992 elif $_cc -V 2>&1 | grep -q Portland; then
2993 _type=pgi
2994 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2995 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2996 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2997 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2998 _cflags_noopt="-O1"
2999 _flags_filter=pgi_flags
3000 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3001 _type=armasm
3002 _ident=$($_cc | head -n1)
3003 # 4509: "This form of conditional instruction is deprecated"
3004 _flags="-nologo -ignore 4509"
3005 _flags_filter=armasm_flags
3006 elif $_cc 2>&1 | grep -q Microsoft; then
3007 _type=msvc
3008 _ident=$($_cc 2>&1 | head -n1)
3009 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3010 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3011 _cflags_speed="-O2"
3012 _cflags_size="-O1"
3013 if $_cc 2>&1 | grep -q Linker; then
3014 _ld_o='-out:$@'
3015 else
3016 _ld_o='-Fe$@'
3017 fi
3018 _cc_o='-Fo$@'
3019 _cc_e='-P -Fi$@'
3020 _flags_filter=msvc_flags
3021 _ld_lib='lib%.a'
3022 _ld_path='-libpath:'
3023 _flags='-nologo'
3024 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3025 elif $_cc 2>&1 | grep -q Intel; then
3026 _type=icl
3027 _ident=$($_cc 2>&1 | head -n1)
3028 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3029 # Not only is O3 broken on 13.x+ but it is slower on all previous
3030 # versions (tested) as well.
3031 _cflags_speed="-O2"
3032 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3033 if $_cc 2>&1 | grep -q Linker; then
3034 _ld_o='-out:$@'
3035 else
3036 _ld_o='-Fe$@'
3037 fi
3038 _cc_o='-Fo$@'
3039 _cc_e='-P'
3040 _flags_filter=icl_flags
3041 _ld_lib='lib%.a'
3042 _ld_path='-libpath:'
3043 # -Qdiag-error to make icl error when seeing certain unknown arguments
3044 _flags='-nologo -Qdiag-error:4044,10157'
3045 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3046 # with MSVC which enables it by default.
3047 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3048 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3049 _type=cparser
3050 _ident=$($_cc --version | head -n1)
3051 _depflags='-MMD'
3052 _cflags_speed='-O4'
3053 _cflags_size='-O2'
3054 _flags_filter=cparser_flags
3055 fi
3056
3057 eval ${pfx}_type=\$_type
3058 eval ${pfx}_ident=\$_ident
3059 }
3060
3061 set_ccvars(){
3062 eval ${1}_C=\${_cc_c-\${${1}_C}}
3063 eval ${1}_E=\${_cc_e-\${${1}_E}}
3064 eval ${1}_O=\${_cc_o-\${${1}_O}}
3065
3066 if [ -n "$_depflags" ]; then
3067 eval ${1}_DEPFLAGS=\$_depflags
3068 else
3069 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3070 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3071 eval DEP${1}FLAGS=\$_flags
3072 fi
3073 }
3074
3075 probe_cc cc "$cc"
3076 cflags_filter=$_flags_filter
3077 cflags_speed=$_cflags_speed
3078 cflags_size=$_cflags_size
3079 cflags_noopt=$_cflags_noopt
3080 add_cflags $_flags $_cflags
3081 cc_ldflags=$_ldflags
3082 set_ccvars CC
3083
3084 probe_cc hostcc "$host_cc"
3085 host_cflags_filter=$_flags_filter
3086 add_host_cflags $_flags $_cflags
3087 set_ccvars HOSTCC
3088
3089 test -n "$cc_type" && enable $cc_type ||
3090 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3091
3092 : ${as_default:=$cc}
3093 : ${dep_cc_default:=$cc}
3094 : ${ld_default:=$cc}
3095 : ${host_ld_default:=$host_cc}
3096 set_default ar as dep_cc ld host_ld
3097
3098 probe_cc as "$as"
3099 asflags_filter=$_flags_filter
3100 add_asflags $_flags $_cflags
3101 set_ccvars AS
3102
3103 probe_cc ld "$ld"
3104 ldflags_filter=$_flags_filter
3105 add_ldflags $_flags $_ldflags
3106 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3107 LD_O=${_ld_o-$LD_O}
3108 LD_LIB=${_ld_lib-$LD_LIB}
3109 LD_PATH=${_ld_path-$LD_PATH}
3110
3111 probe_cc hostld "$host_ld"
3112 host_ldflags_filter=$_flags_filter
3113 add_host_ldflags $_flags $_ldflags
3114 HOSTLD_O=${_ld_o-$HOSTLD_O}
3115
3116 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3117 probe_cc depcc "$dep_cc"
3118 CCDEP=${_DEPCMD:-$DEPCMD}
3119 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3120 DEPCCFLAGS=$_flags
3121 fi
3122
3123 if $ar 2>&1 | grep -q Microsoft; then
3124 arflags="-nologo"
3125 ar_o='-out:$@'
3126 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3127 arflags="rq"
3128 ar_o='$@'
3129 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3130 arflags='-Xany -r -c'
3131 ar_o='$@'
3132 else
3133 arflags="rc"
3134 ar_o='$@'
3135 fi
3136
3137 add_cflags $extra_cflags
3138 add_asflags $extra_cflags
3139
3140 if test -n "$sysroot"; then
3141 case "$cc_type" in
3142 gcc|llvm_gcc|clang)
3143 add_cppflags --sysroot="$sysroot"
3144 add_ldflags --sysroot="$sysroot"
3145 ;;
3146 tms470)
3147 add_cppflags -I"$sysinclude"
3148 add_ldflags --sysroot="$sysroot"
3149 ;;
3150 esac
3151 fi
3152
3153 if test "$cpu" = host; then
3154 enabled cross_compile &&
3155 die "--cpu=host makes no sense when cross-compiling."
3156
3157 case "$cc_type" in
3158 gcc|llvm_gcc)
3159 check_native(){
3160 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3161 sed -n "/cc1.*$1=/{
3162 s/.*$1=\\([^ ]*\\).*/\\1/
3163 p
3164 q
3165 }" $TMPE
3166 }
3167 cpu=$(check_native -march || check_native -mcpu)
3168 ;;
3169 esac
3170
3171 test "${cpu:-host}" = host &&
3172 die "--cpu=host not supported with compiler $cc"
3173 fi
3174
3175 # Deal with common $arch aliases
3176 case "$arch" in
3177 aarch64|arm64)
3178 arch="aarch64"
3179 ;;
3180 arm*)
3181 arch="arm"
3182 ;;
3183 mips*|IP*)
3184 arch="mips"
3185 ;;
3186 parisc*|hppa*)
3187 arch="parisc"
3188 ;;
3189 "Power Macintosh"|ppc*|powerpc*)
3190 arch="ppc"
3191 ;;
3192 s390|s390x)
3193 arch="s390"
3194 ;;
3195 sh4|sh)
3196 arch="sh4"
3197 ;;
3198 sun4u|sparc*)
3199 arch="sparc"
3200 ;;
3201 tilegx|tile-gx)
3202 arch="tilegx"
3203 ;;
3204 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3205 arch="x86"
3206 ;;
3207 esac
3208
3209 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3210 enable $arch
3211
3212 # Add processor-specific flags
3213 if enabled aarch64; then
3214
3215 case $cpu in
3216 armv*)
3217 cpuflags="-march=$cpu"
3218 ;;
3219 *)
3220 cpuflags="-mcpu=$cpu"
3221 ;;
3222 esac
3223
3224 elif enabled alpha; then
3225
3226 cpuflags="-mcpu=$cpu"
3227
3228 elif enabled arm; then
3229
3230 check_arm_arch() {
3231 check_cpp_condition stddef.h \
3232 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3233 $cpuflags
3234 }
3235
3236 probe_arm_arch() {
3237 if check_arm_arch 4; then echo armv4;
3238 elif check_arm_arch 4T; then echo armv4t;
3239 elif check_arm_arch 5; then echo armv5;
3240 elif check_arm_arch 5E; then echo armv5e;
3241 elif check_arm_arch 5T; then echo armv5t;
3242 elif check_arm_arch 5TE; then echo armv5te;
3243 elif check_arm_arch 5TEJ; then echo armv5te;
3244 elif check_arm_arch 6; then echo armv6;
3245 elif check_arm_arch 6J; then echo armv6j;
3246 elif check_arm_arch 6K; then echo armv6k;
3247 elif check_arm_arch 6Z; then echo armv6z;
3248 elif check_arm_arch 6ZK; then echo armv6zk;
3249 elif check_arm_arch 6T2; then echo armv6t2;
3250 elif check_arm_arch 7; then echo armv7;
3251 elif check_arm_arch 7A 7_A; then echo armv7-a;
3252 elif check_arm_arch 7S; then echo armv7-a;
3253 elif check_arm_arch 7R 7_R; then echo armv7-r;
3254 elif check_arm_arch 7M 7_M; then echo armv7-m;
3255 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3256 elif check_arm_arch 8A 8_A; then echo armv8-a;
3257 fi
3258 }
3259
3260 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3261
3262 case $cpu in
3263 armv*)
3264 cpuflags="-march=$cpu"
3265 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3266 ;;
3267 *)
3268 cpuflags="-mcpu=$cpu"
3269 case $cpu in
3270 cortex-a*) subarch=armv7a ;;
3271 cortex-r*) subarch=armv7r ;;
3272 cortex-m*) enable thumb; subarch=armv7m ;;
3273 arm11*) subarch=armv6 ;;
3274 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3275 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3276 *) subarch=$(probe_arm_arch) ;;
3277 esac
3278 ;;
3279 esac
3280
3281 case "$subarch" in
3282 armv5t*) enable fast_clz ;;
3283 armv[6-8]*) enable fast_clz fast_unaligned ;;
3284 esac
3285
3286 elif enabled avr32; then
3287
3288 case $cpu in
3289 ap7[02]0[0-2])
3290 subarch="avr32_ap"
3291 cpuflags="-mpart=$cpu"
3292 ;;
3293 ap)
3294 subarch="avr32_ap"
3295 cpuflags="-march=$cpu"
3296 ;;
3297 uc3[ab]*)
3298 subarch="avr32_uc"
3299 cpuflags="-mcpu=$cpu"
3300 ;;
3301 uc)
3302 subarch="avr32_uc"
3303 cpuflags="-march=$cpu"
3304 ;;
3305 esac
3306
3307 elif enabled bfin; then
3308
3309 cpuflags="-mcpu=$cpu"
3310
3311 elif enabled mips; then
3312
3313 cpuflags="-march=$cpu"
3314
3315 elif enabled ppc; then
3316
3317 disable ldbrx
3318
3319 case $(tolower $cpu) in
3320 601|ppc601|powerpc601)
3321 cpuflags="-mcpu=601"
3322 disable altivec
3323 ;;
3324 603*|ppc603*|powerpc603*)
3325 cpuflags="-mcpu=603"
3326 disable altivec
3327 ;;
3328 604*|ppc604*|powerpc604*)
3329 cpuflags="-mcpu=604"
3330 disable altivec
3331 ;;
3332 g3|75*|ppc75*|powerpc75*)
3333 cpuflags="-mcpu=750"
3334 disable altivec
3335 ;;
3336 g4|745*|ppc745*|powerpc745*)
3337 cpuflags="-mcpu=7450"
3338 disable vsx
3339 ;;
3340 74*|ppc74*|powerpc74*)
3341 cpuflags="-mcpu=7400"
3342 disable vsx
3343 ;;
3344 g5|970|ppc970|powerpc970)
3345 cpuflags="-mcpu=970"
3346 disable vsx
3347 ;;
3348 power[3-6]*)
3349 cpuflags="-mcpu=$cpu"
3350 disable vsx
3351 ;;
3352 power[7-8]*)
3353 cpuflags="-mcpu=$cpu"
3354 enable ldbrx
3355 ;;
3356 cell)
3357 cpuflags="-mcpu=cell"
3358 enable ldbrx
3359 disable vsx
3360 ;;
3361 e500mc)
3362 cpuflags="-mcpu=e500mc"
3363 disable altivec
3364 ;;
3365 e500v2)
3366 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3367 disable altivec
3368 disable dcbzl
3369 ;;
3370 e500)
3371 cpuflags="-mcpu=8540 -mhard-float"
3372 disable altivec
3373 disable dcbzl
3374 ;;
3375 esac
3376
3377 elif enabled sparc; then
3378
3379 case $cpu in
3380 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3381 cpuflags="-mcpu=$cpu"
3382 ;;
3383 ultrasparc*|niagara[234])
3384 cpuflags="-mcpu=$cpu"
3385 ;;
3386 esac
3387
3388 elif enabled x86; then
3389
3390 case $cpu in
3391 i[345]86|pentium)
3392 cpuflags="-march=$cpu"
3393 disable i686
3394 disable mmx
3395 ;;
3396 # targets that do NOT support nopl and conditional mov (cmov)
3397 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3398 cpuflags="-march=$cpu"
3399 disable i686
3400 ;;
3401 # targets that do support nopl and conditional mov (cmov)
3402 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3403 cpuflags="-march=$cpu"
3404 enable i686
3405 enable fast_cmov
3406 ;;
3407 # targets that do support conditional mov but on which it's slow
3408 pentium4|pentium4m|prescott|nocona)
3409 cpuflags="-march=$cpu"
3410 enable i686
3411 disable fast_cmov
3412 ;;
3413 esac
3414
3415 fi
3416
3417 if [ "$cpu" != generic ]; then
3418 add_cflags $cpuflags
3419 add_asflags $cpuflags
3420 fi
3421
3422 # compiler sanity check
3423 check_exec <<EOF
3424 int main(void){ return 0; }
3425 EOF
3426 if test "$?" != 0; then
3427 echo "$cc is unable to create an executable file."
3428 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3429 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3430 echo "Only do this if you know what cross compiling means."
3431 fi
3432 die "C compiler test failed."
3433 fi
3434
3435 add_cppflags -D_ISOC99_SOURCE
3436 check_cflags -std=c99
3437 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3438 #include <stdlib.h>
3439 EOF
3440 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3441 #include <stdlib.h>
3442 EOF
3443
3444 add_host_cppflags -D_ISOC99_SOURCE
3445 check_host_cflags -std=c99
3446 check_host_cflags -Wall
3447 check_host_cflags -O3
3448
3449 check_64bit(){
3450 arch32=$1
3451 arch64=$2
3452 expr=$3
3453 check_code cc "" "int test[2*($expr) - 1]" &&
3454 subarch=$arch64 || subarch=$arch32
3455 }
3456
3457 case "$arch" in
3458 aarch64|alpha|ia64)
3459 spic=$shared
3460 ;;
3461 mips)
3462 check_64bit mips mips64 '_MIPS_SIM > 1'
3463 spic=$shared
3464 ;;
3465 parisc)
3466 check_64bit parisc parisc64 'sizeof(void *) > 4'
3467 spic=$shared
3468 ;;
3469 ppc)
3470 check_64bit ppc ppc64 'sizeof(void *) > 4'
3471 spic=$shared
3472 ;;
3473 s390)
3474 check_64bit s390 s390x 'sizeof(void *) > 4'
3475 spic=$shared
3476 ;;
3477 sparc)
3478 check_64bit sparc sparc64 'sizeof(void *) > 4'
3479 spic=$shared
3480 ;;
3481 x86)
3482 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3483 if test "$subarch" = "x86_64"; then
3484 spic=$shared
3485 fi
3486 ;;
3487 esac
3488
3489 enable $subarch
3490 enabled spic && enable_weak pic
3491
3492 # OS specific
3493 case $target_os in
3494 aix)
3495 SHFLAGS=-shared
3496 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3497 enabled shared && add_ldflags -Wl,-brtl
3498 ;;
3499 android)
3500 disable symver
3501 enable section_data_rel_ro
3502 SLIB_INSTALL_NAME='$(SLIBNAME)'
3503 SLIB_INSTALL_LINKS=
3504 # soname not set on purpose
3505 SHFLAGS=-shared
3506 ;;
3507 haiku)
3508 prefix_default="/boot/common"
3509 network_extralibs="-lnetwork"
3510 host_libs=
3511 ;;
3512 sunos)
3513 SHFLAGS='-shared -Wl,-h,$$(@F)'
3514 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3515 network_extralibs="-lsocket -lnsl"
3516 # When using suncc to build, the Solaris linker will mark
3517 # an executable with each instruction set encountered by
3518 # the Solaris assembler. As our libraries contain their own
3519 # guards for processor-specific code, instead suppress
3520 # generation of the HWCAPS ELF section on Solaris x86 only.
3521 enabled_all suncc x86 &&
3522 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3523 add_ldflags -Wl,-M,mapfile
3524 nm_default='nm -P -g'
3525 ;;
3526 netbsd)
3527 disable symver
3528 oss_indev_extralibs="-lossaudio"
3529 oss_outdev_extralibs="-lossaudio"
3530 ;;
3531 openbsd|bitrig)
3532 disable symver
3533 SHFLAGS='-shared'
3534 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3535 SLIB_INSTALL_LINKS=
3536 oss_indev_extralibs="-lossaudio"
3537 oss_outdev_extralibs="-lossaudio"
3538 ;;
3539 dragonfly)
3540 disable symver
3541 ;;
3542 freebsd)
3543 ;;
3544 bsd/os)
3545 add_extralibs -lpoll -lgnugetopt
3546 ;;
3547 darwin)
3548 enabled ppc && add_asflags -force_cpusubtype_ALL
3549 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3550 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3551 add_ldflags -Wl,-dynamic,-search_paths_first
3552 SLIBSUF=".dylib"
3553 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3554 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3555 objformat="macho"
3556 enabled x86_64 && objformat="macho64"
3557 enabled_any pic shared ||
3558 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3559 ;;
3560 mingw32*)
3561 if test $target_os = "mingw32ce"; then
3562 disable network
3563 else
3564 target_os=mingw32
3565 fi
3566 LIBTARGET=i386
3567 if enabled x86_64; then
3568 LIBTARGET="i386:x86-64"
3569 elif enabled arm; then
3570 LIBTARGET=arm-wince
3571 fi
3572 check_ldflags -Wl,--nxcompat
3573 check_ldflags -Wl,--dynamicbase
3574 shlibdir_default="$bindir_default"
3575 SLIBPREF=""
3576 SLIBSUF=".dll"
3577 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3578 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3579 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3580 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3581 SLIB_INSTALL_LINKS=
3582 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3583 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3584 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3585 objformat="win32"
3586 dlltool="${cross_prefix}dlltool"
3587 ranlib=:
3588 enable dos_paths
3589 ;;
3590 win32|win64)
3591 disable symver
3592 if enabled shared; then
3593 # Link to the import library instead of the normal static library
3594 # for shared libs.
3595 LD_LIB='%.lib'
3596 # Cannot build both shared and static libs with MSVC or icl.
3597 disable static
3598 fi
3599 shlibdir_default="$bindir_default"
3600 SLIBPREF=""
3601 SLIBSUF=".dll"
3602 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3603 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3604 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3605 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3606 SLIB_INSTALL_LINKS=
3607 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3608 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3609 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3610 objformat="win32"
3611 ranlib=:
3612 enable dos_paths
3613 ;;
3614 cygwin*)
3615 target_os=cygwin
3616 shlibdir_default="$bindir_default"
3617 SLIBPREF="cyg"
3618 SLIBSUF=".dll"
3619 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3620 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3621 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3622 SLIB_INSTALL_LINKS=
3623 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3624 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3625 objformat="win32"
3626 enable dos_paths
3627 ;;
3628 *-dos|freedos|opendos)
3629 network_extralibs="-lsocket"
3630 objformat="coff"
3631 enable dos_paths
3632 add_cppflags -U__STRICT_ANSI__
3633 ;;
3634 linux)
3635 enable dv1394
3636 enable section_data_rel_ro
3637 ;;
3638 irix*)
3639 target_os=irix
3640 ranlib="echo ignoring ranlib"
3641 ;;
3642 os/2*)
3643 ln_s="cp -f"
3644 objformat="aout"
3645 add_cppflags -D_GNU_SOURCE
3646 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3647 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3648 LIBSUF="_s.a"
3649 SLIBPREF=""
3650 SLIBSUF=".dll"
3651 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3652 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3653 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3654 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3655 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3656 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3657 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3658 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3659 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3660 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3661 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3662 enable dos_paths
3663 ;;
3664 gnu/kfreebsd)
3665 add_cppflags -D_BSD_SOURCE
3666 ;;
3667 gnu)
3668 ;;
3669 qnx)
3670 add_cppflags -D_QNX_SOURCE
3671 network_extralibs="-lsocket"
3672 ;;
3673 symbian)
3674 SLIBSUF=".dll"
3675 enable dos_paths
3676 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3677 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3678 add_ldflags -Wl,--target1-abs,--no-undefined \
3679 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3680 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3681 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3682 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3683 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3684 ;;
3685 osf1)
3686 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3687 ;;
3688 minix)
3689 ;;
3690 plan9)
3691 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3692 -D_REENTRANT_SOURCE \
3693 -D_RESEARCH_SOURCE \
3694 -DFD_SETSIZE=96 \
3695 -DHAVE_SOCK_OPTS
3696 add_compat strtod.o strtod=avpriv_strtod
3697 network_extralibs='-lbsd'
3698 exeobjs=compat/plan9/main.o
3699 cp_f='cp'
3700 ;;
3701 none)
3702 ;;
3703 *)
3704 die "Unknown OS '$target_os'."
3705 ;;
3706 esac
3707
3708 # determine libc flavour
3709
3710 probe_libc(){
3711 pfx=$1