58a8cb6c4aea9d91a1ba675671a89c8b0586eea5
[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-libsnappy enable Snappy compression [no]
206 --enable-libspeex enable Speex de/encoding via libspeex [no]
207 --enable-libtheora enable Theora encoding via libtheora [no]
208 --enable-libtwolame enable MP2 encoding via libtwolame [no]
209 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
210 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
211 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
212 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
213 --enable-libwavpack enable wavpack encoding via libwavpack [no]
214 --enable-libwebp enable WebP encoding via libwebp [no]
215 --enable-libx264 enable H.264 encoding via x264 [no]
216 --enable-libx265 enable HEVC encoding via x265 [no]
217 --enable-libxavs enable AVS encoding via xavs [no]
218 --enable-libxcb enable X11 grabbing using XCB [no]
219 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
220 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
221 --enable-libxvid enable Xvid encoding via xvidcore,
222 native MPEG-4/Xvid encoder exists [no]
223 --enable-mmal enable decoding via MMAL [no]
224 --enable-nvenc enable encoding via NVENC [no]
225 --enable-openssl enable openssl [no]
226 --enable-x11grab enable X11 grabbing (legacy) [no]
227 --enable-zlib enable zlib [autodetect]
228
229 Toolchain options:
230 --arch=ARCH select architecture [$arch]
231 --cpu=CPU select the minimum required CPU (affects
232 instruction selection, may crash on older CPUs)
233 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
234 --enable-cross-compile assume a cross-compiler is used
235 --sysroot=PATH root of cross-build tree
236 --sysinclude=PATH location of cross-build system headers
237 --target-os=OS compiler targets OS [$target_os]
238 --target-exec=CMD command to run executables on target
239 --target-path=DIR path to view of build directory on target
240 --target-samples=DIR path to samples directory on target
241 --toolchain=NAME set tool defaults according to NAME
242 --nm=NM use nm tool
243 --ar=AR use archive tool AR [$ar_default]
244 --as=AS use assembler AS [$as_default]
245 --cc=CC use C compiler CC [$cc_default]
246 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
247 --ld=LD use linker LD
248 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
249 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
250 --host-cc=HOSTCC use host C compiler HOSTCC
251 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
252 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
253 --host-ld=HOSTLD use host linker HOSTLD
254 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
255 --host-libs=HLIBS use libs HLIBS when linking for host
256 --host-os=OS compiler host OS [$target_os]
257 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
258 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
259 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
260 --extra-libs=ELIBS add ELIBS [$ELIBS]
261 --extra-version=STRING version string suffix []
262 --optflags=OPTFLAGS override optimization-related compiler flags
263 --build-suffix=SUFFIX library name suffix []
264 --enable-pic build position-independent code
265 --enable-thumb compile for Thumb instruction set
266 --enable-lto use link-time optimization
267 --env="ENV=override" override the environment variables
268
269 Advanced options (experts only):
270 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
271 --disable-symver disable symbol versioning
272 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
273 --disable-safe-bitstream-reader
274 disable buffer boundary checking in bitreaders
275 (faster, but may crash)
276 --enable-memalign-hack emulate memalign, interferes with memory debuggers
277 --enable-sram allow use of on-chip SRAM
278
279 Optimization options (experts only):
280 --disable-asm disable all assembly optimizations
281 --disable-altivec disable AltiVec optimizations
282 --disable-vsx disable VSX optimizations
283 --disable-power8 disable POWER8 optimizations
284 --disable-amd3dnow disable 3DNow! optimizations
285 --disable-amd3dnowext disable 3DNow! extended optimizations
286 --disable-mmx disable MMX optimizations
287 --disable-mmxext disable MMXEXT optimizations
288 --disable-sse disable SSE optimizations
289 --disable-sse2 disable SSE2 optimizations
290 --disable-sse3 disable SSE3 optimizations
291 --disable-ssse3 disable SSSE3 optimizations
292 --disable-sse4 disable SSE4 optimizations
293 --disable-sse42 disable SSE4.2 optimizations
294 --disable-avx disable AVX optimizations
295 --disable-xop disable XOP optimizations
296 --disable-fma3 disable FMA3 optimizations
297 --disable-fma4 disable FMA4 optimizations
298 --disable-avx2 disable AVX2 optimizations
299 --disable-armv5te disable armv5te optimizations
300 --disable-armv6 disable armv6 optimizations
301 --disable-armv6t2 disable armv6t2 optimizations
302 --disable-vfp disable VFP optimizations
303 --disable-neon disable NEON optimizations
304 --disable-inline-asm disable use of inline assembly
305 --disable-yasm disable use of nasm/yasm assembly
306
307 Developer options (useful when working on Libav itself):
308 --disable-debug disable debugging symbols
309 --enable-debug=LEVEL set the debug level [$debuglevel]
310 --disable-optimizations disable compiler optimizations
311 --enable-extra-warnings enable more compiler warnings
312 --samples=PATH location of test samples for FATE, if not set use
313 \$LIBAV_SAMPLES at make invocation time.
314 --enable-neon-clobber-test check NEON registers for clobbering (should be
315 used only for debugging purposes)
316 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
317 should be used only for debugging purposes)
318 --enable-random randomly enable/disable components
319 --disable-random
320 --enable-random=LIST randomly enable/disable specific components or
321 --disable-random=LIST component groups. LIST is a comma-separated list
322 of NAME[:PROB] entries where NAME is a component
323 (group) and PROB the probability associated with
324 NAME (default 0.5).
325 --random-seed=VALUE seed value for --enable/disable-random
326 --disable-valgrind-backtrace do not print a backtrace under Valgrind
327 (only applies to --disable-optimizations builds)
328
329 NOTE: Object files are built at the place where configure is launched.
330 EOF
331 exit 0
332 }
333
334 quotes='""'
335
336 log(){
337 echo "$@" >> $logfile
338 }
339
340 log_file(){
341 log BEGIN $1
342 pr -n -t $1 >> $logfile
343 log END $1
344 }
345
346 echolog(){
347 log "$@"
348 echo "$@"
349 }
350
351 warn(){
352 log "WARNING: $*"
353 WARNINGS="${WARNINGS}WARNING: $*\n"
354 }
355
356 die(){
357 echolog "$@"
358 cat <<EOF
359
360 If you think configure made a mistake, make sure you are using the latest
361 version from Git. If the latest version fails, report the problem to the
362 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
363 EOF
364 if disabled logging; then
365 cat <<EOF
366 Rerun configure with logging enabled (do not use --disable-logging), and
367 include the log this produces with your report.
368 EOF
369 else
370 cat <<EOF
371 Include the log file "$logfile" produced by configure as this will help
372 solving the problem.
373 EOF
374 fi
375 exit 1
376 }
377
378 # Avoid locale weirdness, besides we really just want to translate ASCII.
379 toupper(){
380 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
381 }
382
383 tolower(){
384 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
385 }
386
387 c_escape(){
388 echo "$*" | sed 's/["\\]/\\\0/g'
389 }
390
391 sh_quote(){
392 v=$(echo "$1" | sed "s/'/'\\\\''/g")
393 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
394 echo "$v"
395 }
396
397 cleanws(){
398 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
399 }
400
401 filter(){
402 pat=$1
403 shift
404 for v; do
405 eval "case $v in $pat) echo $v ;; esac"
406 done
407 }
408
409 filter_out(){
410 pat=$1
411 shift
412 for v; do
413 eval "case $v in $pat) ;; *) echo $v ;; esac"
414 done
415 }
416
417 map(){
418 m=$1
419 shift
420 for v; do eval $m; done
421 }
422
423 add_suffix(){
424 suffix=$1
425 shift
426 for v; do echo ${v}${suffix}; done
427 }
428
429 set_all(){
430 value=$1
431 shift
432 for var in $*; do
433 eval $var=$value
434 done
435 }
436
437 set_weak(){
438 value=$1
439 shift
440 for var; do
441 eval : \${$var:=$value}
442 done
443 }
444
445 sanitize_var_name(){
446 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
447 }
448
449 set_safe(){
450 var=$1
451 shift
452 eval $(sanitize_var_name "$var")='$*'
453 }
454
455 get_safe(){
456 eval echo \$$(sanitize_var_name "$1")
457 }
458
459 pushvar(){
460 for pvar in $*; do
461 eval level=\${${pvar}_level:=0}
462 eval ${pvar}_${level}="\$$pvar"
463 eval ${pvar}_level=$(($level+1))
464 done
465 }
466
467 popvar(){
468 for pvar in $*; do
469 eval level=\${${pvar}_level:-0}
470 test $level = 0 && continue
471 eval level=$(($level-1))
472 eval $pvar="\${${pvar}_${level}}"
473 eval ${pvar}_level=$level
474 eval unset ${pvar}_${level}
475 done
476 }
477
478 enable(){
479 set_all yes $*
480 }
481
482 disable(){
483 set_all no $*
484 }
485
486 enable_weak(){
487 set_weak yes $*
488 }
489
490 disable_weak(){
491 set_weak no $*
492 }
493
494 enable_safe(){
495 for var; do
496 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
497 done
498 }
499
500 disable_safe(){
501 for var; do
502 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
503 done
504 }
505
506 do_enable_deep(){
507 for var; do
508 enabled $var && continue
509 eval sel="\$${var}_select"
510 eval sgs="\$${var}_suggest"
511 pushvar var sgs
512 enable_deep $sel
513 popvar sgs
514 enable_deep_weak $sgs
515 popvar var
516 done
517 }
518
519 enable_deep(){
520 do_enable_deep $*
521 enable $*
522 }
523
524 enable_deep_weak(){
525 for var; do
526 disabled $var && continue
527 pushvar var
528 do_enable_deep $var
529 popvar var
530 enable_weak $var
531 done
532 }
533
534 enabled(){
535 test "${1#!}" = "$1" && op== || op=!=
536 eval test "x\$${1#!}" $op "xyes"
537 }
538
539 disabled(){
540 test "${1#!}" = "$1" && op== || op=!=
541 eval test "x\$${1#!}" $op "xno"
542 }
543
544 enabled_all(){
545 for opt; do
546 enabled $opt || return 1
547 done
548 }
549
550 disabled_all(){
551 for opt; do
552 disabled $opt || return 1
553 done
554 }
555
556 enabled_any(){
557 for opt; do
558 enabled $opt && return 0
559 done
560 }
561
562 disabled_any(){
563 for opt; do
564 disabled $opt && return 0
565 done
566 return 1
567 }
568
569 set_default(){
570 for opt; do
571 eval : \${$opt:=\$${opt}_default}
572 done
573 }
574
575 is_in(){
576 value=$1
577 shift
578 for var in $*; do
579 [ $var = $value ] && return 0
580 done
581 return 1
582 }
583
584 do_check_deps(){
585 for cfg; do
586 cfg="${cfg#!}"
587 enabled ${cfg}_checking && die "Circular dependency for $cfg."
588 disabled ${cfg}_checking && continue
589 enable ${cfg}_checking
590 append allopts $cfg
591
592 eval dep_all="\$${cfg}_deps"
593 eval dep_any="\$${cfg}_deps_any"
594 eval dep_sel="\$${cfg}_select"
595 eval dep_sgs="\$${cfg}_suggest"
596 eval dep_ifa="\$${cfg}_if"
597 eval dep_ifn="\$${cfg}_if_any"
598
599 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
600 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
601 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
602
603 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
604 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
605 enabled_all $dep_all || disable $cfg
606 enabled_any $dep_any || disable $cfg
607 disabled_any $dep_sel && disable $cfg
608
609 if enabled $cfg; then
610 enable_deep $dep_sel
611 enable_deep_weak $dep_sgs
612 fi
613
614 disable ${cfg}_checking
615 done
616 }
617
618 check_deps(){
619 unset allopts
620
621 do_check_deps "$@"
622
623 for cfg in $allopts; do
624 enabled $cfg || continue
625 eval dep_extralibs="\$${cfg}_extralibs"
626 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
627 done
628 }
629
630 print_config(){
631 pfx=$1
632 files=$2
633 shift 2
634 map 'eval echo "$v \${$v:-no}"' "$@" |
635 awk "BEGIN { split(\"$files\", files) }
636 {
637 c = \"$pfx\" toupper(\$1);
638 v = \$2;
639 sub(/yes/, 1, v);
640 sub(/no/, 0, v);
641 for (f in files) {
642 file = files[f];
643 if (file ~ /\\.h\$/) {
644 printf(\"#define %s %d\\n\", c, v) >>file;
645 } else if (file ~ /\\.asm\$/) {
646 printf(\"%%define %s %d\\n\", c, v) >>file;
647 } else if (file ~ /\\.mak\$/) {
648 n = -v ? \"\" : \"!\";
649 printf(\"%s%s=yes\\n\", n, c) >>file;
650 }
651 }
652 }"
653 }
654
655 print_enabled(){
656 suf=$1
657 shift
658 for v; do
659 enabled $v && printf "%s\n" ${v%$suf};
660 done
661 }
662
663 append(){
664 var=$1
665 shift
666 eval "$var=\"\$$var $*\""
667 }
668
669 prepend(){
670 var=$1
671 shift
672 eval "$var=\"$* \$$var\""
673 }
674
675 unique(){
676 var=$1
677 uniq_list=""
678 for tok in $(eval echo \$$var); do
679 uniq_list="$(filter_out $tok $uniq_list) $tok"
680 done
681 eval "$var=\"${uniq_list}\""
682 }
683
684 add_cppflags(){
685 append CPPFLAGS "$@"
686 }
687
688 add_cflags(){
689 append CFLAGS $($cflags_filter "$@")
690 }
691
692 add_asflags(){
693 append ASFLAGS $($asflags_filter "$@")
694 }
695
696 add_ldflags(){
697 append LDFLAGS $($ldflags_filter "$@")
698 }
699
700 add_ldexeflags(){
701 append LDEXEFLAGS $($ldflags_filter "$@")
702 }
703
704 add_stripflags(){
705 append STRIPFLAGS "$@"
706 }
707
708 add_extralibs(){
709 prepend extralibs $($ldflags_filter "$@")
710 }
711
712 add_host_cppflags(){
713 append host_cppflags "$@"
714 }
715
716 add_host_cflags(){
717 append host_cflags $($host_cflags_filter "$@")
718 }
719
720 add_host_ldflags(){
721 append host_ldflags $($host_ldflags_filter "$@")
722 }
723
724 add_compat(){
725 append compat_objs $1
726 shift
727 map 'add_cppflags -D$v' "$@"
728 }
729
730 check_cmd(){
731 log "$@"
732 "$@" >> $logfile 2>&1
733 }
734
735 cc_o(){
736 eval printf '%s\\n' $CC_O
737 }
738
739 cc_e(){
740 eval printf '%s\\n' $CC_E
741 }
742
743 check_cc(){
744 log check_cc "$@"
745 cat > $TMPC
746 log_file $TMPC
747 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
748 }
749
750 check_cpp(){
751 log check_cpp "$@"
752 cat > $TMPC
753 log_file $TMPC
754 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
755 }
756
757 as_o(){
758 eval printf '%s\\n' $AS_O
759 }
760
761 check_as(){
762 log check_as "$@"
763 cat > $TMPS
764 log_file $TMPS
765 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
766 }
767
768 check_inline_asm(){
769 log check_inline_asm "$@"
770 name="$1"
771 code="$2"
772 shift 2
773 disable $name
774 check_cc "$@" <<EOF && enable $name
775 void foo(void){ __asm__ volatile($code); }
776 EOF
777 }
778
779 check_insn(){
780 log check_insn "$@"
781 check_inline_asm ${1}_inline "\"$2\""
782 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
783 }
784
785 check_yasm(){
786 log check_yasm "$@"
787 echo "$1" > $TMPS
788 log_file $TMPS
789 shift 1
790 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
791 }
792
793 ld_o(){
794 eval printf '%s\\n' $LD_O
795 }
796
797 check_ld(){
798 log check_ld "$@"
799 flags=$(filter_out '-l*' "$@")
800 libs=$(filter '-l*' "$@")
801 check_cc $($cflags_filter $flags) || return
802 flags=$($ldflags_filter $flags)
803 libs=$($ldflags_filter $libs)
804 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
805 }
806
807 print_include(){
808 hdr=$1
809 test "${hdr%.h}" = "${hdr}" &&
810 echo "#include $hdr" ||
811 echo "#include <$hdr>"
812 }
813
814 check_code(){
815 log check_code "$@"
816 check=$1
817 headers=$2
818 code=$3
819 shift 3
820 {
821 for hdr in $headers; do
822 print_include $hdr
823 done
824 echo "int main(void) { $code; return 0; }"
825 } | check_$check "$@"
826 }
827
828 check_cppflags(){
829 log check_cppflags "$@"
830 check_cc "$@" <<EOF && append CPPFLAGS "$@"
831 int x;
832 EOF
833 }
834
835 test_cflags(){
836 log test_cflags "$@"
837 set -- $($cflags_filter "$@")
838 check_cc "$@" <<EOF
839 int x;
840 EOF
841 }
842
843 check_cflags(){
844 log check_cflags "$@"
845 test_cflags "$@" && add_cflags "$@"
846 }
847
848 test_ldflags(){
849 log test_ldflags "$@"
850 check_ld "$@" <<EOF
851 int main(void){ return 0; }
852 EOF
853 }
854
855 check_ldflags(){
856 log check_ldflags "$@"
857 test_ldflags "$@" && add_ldflags "$@"
858 }
859
860 test_stripflags(){
861 log test_stripflags "$@"
862 # call check_cc to get a fresh TMPO
863 check_cc <<EOF
864 int main(void) { return 0; }
865 EOF
866 check_cmd $strip $STRIPFLAGS "$@" $TMPO
867 }
868
869 check_stripflags(){
870 log check_stripflags "$@"
871 test_stripflags "$@" && add_stripflags "$@"
872 }
873
874 check_header(){
875 log check_header "$@"
876 header=$1
877 shift
878 disable_safe $header
879 check_cpp "$@" <<EOF && enable_safe $header
880 #include <$header>
881 int x;
882 EOF
883 }
884
885 check_func(){
886 log check_func "$@"
887 func=$1
888 shift
889 disable $func
890 check_ld "$@" <<EOF && enable $func
891 extern int $func();
892 int main(void){ $func(); }
893 EOF
894 }
895
896 check_mathfunc(){
897 log check_mathfunc "$@"
898 func=$1
899 narg=$2
900 shift 2
901 test $narg = 2 && args="f, g" || args="f"
902 disable $func
903 check_ld "$@" <<EOF && enable $func
904 #include <math.h>
905 float foo(float f, float g) { return $func($args); }
906 int main(void){ return 0; }
907 EOF
908 }
909
910 check_func_headers(){
911 log check_func_headers "$@"
912 headers=$1
913 funcs=$2
914 shift 2
915 {
916 for hdr in $headers; do
917 print_include $hdr
918 done
919 for func in $funcs; do
920 echo "long check_$func(void) { return (long) $func; }"
921 done
922 echo "int main(void) { return 0; }"
923 } | check_ld "$@" && enable $funcs && enable_safe $headers
924 }
925
926 check_cpp_condition(){
927 log check_cpp_condition "$@"
928 header=$1
929 condition=$2
930 shift 2
931 check_cpp "$@" <<EOF
932 #include <$header>
933 #if !($condition)
934 #error "unsatisfied condition: $condition"
935 #endif
936 EOF
937 }
938
939 check_lib(){
940 log check_lib "$@"
941 header="$1"
942 func="$2"
943 shift 2
944 check_header $header && check_func $func "$@" && add_extralibs "$@"
945 }
946
947 check_lib2(){
948 log check_lib2 "$@"
949 headers="$1"
950 funcs="$2"
951 shift 2
952 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
953 }
954
955 check_pkg_config(){
956 log check_pkg_config "$@"
957 pkg="$1"
958 headers="$2"
959 funcs="$3"
960 shift 3
961 check_cmd $pkg_config --exists --print-errors $pkg || return
962 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
963 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
964 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
965 set_safe "${pkg}_cflags" $pkg_cflags &&
966 set_safe "${pkg}_libs" $pkg_libs
967 }
968
969 check_exec(){
970 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
971 }
972
973 check_exec_crash(){
974 code=$(cat)
975
976 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
977 # are safe but may not be available everywhere. Thus we use
978 # raise(SIGTERM) instead. The check is run in a subshell so we
979 # can redirect the "Terminated" message from the shell. SIGBUS
980 # is not defined by standard C so it is used conditionally.
981
982 (check_exec "$@") >> $logfile 2>&1 <<EOF
983 #include <signal.h>
984 static void sighandler(int sig){
985 raise(SIGTERM);
986 }
987 int foo(void){
988 $code
989 }
990 int (*func_ptr)(void) = foo;
991 int main(void){
992 signal(SIGILL, sighandler);
993 signal(SIGFPE, sighandler);
994 signal(SIGSEGV, sighandler);
995 #ifdef SIGBUS
996 signal(SIGBUS, sighandler);
997 #endif
998 return func_ptr();
999 }
1000 EOF
1001 }
1002
1003 check_type(){
1004 log check_type "$@"
1005 headers=$1
1006 type=$2
1007 shift 2
1008 disable_safe "$type"
1009 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1010 }
1011
1012 check_struct(){
1013 log check_struct "$@"
1014 headers=$1
1015 struct=$2
1016 member=$3
1017 shift 3
1018 disable_safe "${struct}_${member}"
1019 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1020 enable_safe "${struct}_${member}"
1021 }
1022
1023 check_builtin(){
1024 log check_builtin "$@"
1025 name=$1
1026 headers=$2
1027 builtin=$3
1028 shift 3
1029 disable "$name"
1030 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1031 }
1032
1033 check_compile_assert(){
1034 log check_compile_assert "$@"
1035 name=$1
1036 headers=$2
1037 condition=$3
1038 shift 3
1039 disable "$name"
1040 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1041 }
1042
1043 require(){
1044 name="$1"
1045 header="$2"
1046 func="$3"
1047 shift 3
1048 check_lib $header $func "$@" || die "ERROR: $name not found"
1049 }
1050
1051 require2(){
1052 name="$1"
1053 headers="$2"
1054 func="$3"
1055 shift 3
1056 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1057 }
1058
1059 require_pkg_config(){
1060 pkg="$1"
1061 check_pkg_config "$@" || die "ERROR: $pkg not found"
1062 add_cflags $(get_safe "${pkg}_cflags")
1063 add_extralibs $(get_safe "${pkg}_libs")
1064 }
1065
1066 hostcc_e(){
1067 eval printf '%s\\n' $HOSTCC_E
1068 }
1069
1070 hostcc_o(){
1071 eval printf '%s\\n' $HOSTCC_O
1072 }
1073
1074 check_host_cc(){
1075 log check_host_cc "$@"
1076 cat > $TMPC
1077 log_file $TMPC
1078 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1079 }
1080
1081 check_host_cpp(){
1082 log check_host_cpp "$@"
1083 cat > $TMPC
1084 log_file $TMPC
1085 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1086 }
1087
1088 check_host_cppflags(){
1089 log check_host_cppflags "$@"
1090 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1091 int x;
1092 EOF
1093 }
1094
1095 check_host_cflags(){
1096 log check_host_cflags "$@"
1097 set -- $($host_cflags_filter "$@")
1098 check_host_cc "$@" <<EOF && append host_cflags "$@"
1099 int x;
1100 EOF
1101 }
1102
1103 check_host_cpp_condition(){
1104 log check_host_cpp_condition "$@"
1105 header=$1
1106 condition=$2
1107 shift 2
1108 check_host_cpp "$@" <<EOF
1109 #include <$header>
1110 #if !($condition)
1111 #error "unsatisfied condition: $condition"
1112 #endif
1113 EOF
1114 }
1115
1116 apply(){
1117 file=$1
1118 shift
1119 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1120 }
1121
1122 cp_if_changed(){
1123 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1124 mkdir -p "$(dirname $2)"
1125 $cp_f "$1" "$2"
1126 }
1127
1128 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1129 # system-dependent things.
1130
1131 COMPONENT_LIST="
1132 bsfs
1133 decoders
1134 demuxers
1135 encoders
1136 filters
1137 hwaccels
1138 indevs
1139 muxers
1140 outdevs
1141 parsers
1142 protocols
1143 "
1144
1145 EXAMPLE_LIST="
1146 avcodec_example
1147 filter_audio_example
1148 metadata_example
1149 output_example
1150 qsvdec_example
1151 transcode_aac_example
1152 "
1153
1154 EXTERNAL_LIBRARY_LIST="
1155 avisynth
1156 bzlib
1157 frei0r
1158 gnutls
1159 libbs2b
1160 libcdio
1161 libdc1394
1162 libdcadec
1163 libfaac
1164 libfdk_aac
1165 libfontconfig
1166 libfreetype
1167 libgsm
1168 libilbc
1169 libmfx
1170 libmp3lame
1171 libopencore_amrnb
1172 libopencore_amrwb
1173 libopencv
1174 libopenh264
1175 libopenjpeg
1176 libopus
1177 libpulse
1178 librtmp
1179 libschroedinger
1180 libsnappy
1181 libspeex
1182 libtheora
1183 libtwolame
1184 libvo_aacenc
1185 libvo_amrwbenc
1186 libvorbis
1187 libvpx
1188 libwavpack
1189 libwebp
1190 libx264
1191 libx265
1192 libxavs
1193 libxcb
1194 libxcb_shm
1195 libxcb_xfixes
1196 libxvid
1197 mmal
1198 nvenc
1199 openssl
1200 x11grab
1201 zlib
1202 "
1203
1204 FEATURE_LIST="
1205 gray
1206 hardcoded_tables
1207 runtime_cpudetect
1208 safe_bitstream_reader
1209 shared
1210 small
1211 sram
1212 static
1213 swscale_alpha
1214 "
1215
1216 HWACCEL_LIST="
1217 d3d11va
1218 dxva2
1219 vaapi
1220 vda
1221 vdpau
1222 "
1223
1224 LIBRARY_LIST="
1225 avcodec
1226 avdevice
1227 avfilter
1228 avformat
1229 avresample
1230 avutil
1231 swscale
1232 "
1233
1234 LICENSE_LIST="
1235 gpl
1236 nonfree
1237 version3
1238 "
1239
1240 PROGRAM_LIST="
1241 avconv
1242 avplay
1243 avprobe
1244 "
1245
1246 SUBSYSTEM_LIST="
1247 dct
1248 doc
1249 error_resilience
1250 faan
1251 fft
1252 lsp
1253 lzo
1254 mdct
1255 network
1256 rdft
1257 "
1258
1259 CONFIG_LIST="
1260 $COMPONENT_LIST
1261 $EXAMPLE_LIST
1262 $EXTERNAL_LIBRARY_LIST
1263 $FEATURE_LIST
1264 $HWACCEL_LIST
1265 $LICENSE_LIST
1266 $LIBRARY_LIST
1267 $PROGRAM_LIST
1268 $SUBSYSTEM_LIST
1269 memalign_hack
1270 neon_clobber_test
1271 pic
1272 pod2man
1273 texi2html
1274 thumb
1275 valgrind_backtrace
1276 xmm_clobber_test
1277 "
1278
1279 THREADS_LIST="
1280 pthreads
1281 w32threads
1282 "
1283
1284 ATOMICS_LIST="
1285 atomics_gcc
1286 atomics_suncc
1287 atomics_win32
1288 "
1289
1290 ARCH_LIST="
1291 aarch64
1292 alpha
1293 arm
1294 avr32
1295 avr32_ap
1296 avr32_uc
1297 bfin
1298 ia64
1299 m68k
1300 mips
1301 mips64
1302 parisc
1303 ppc
1304 ppc64
1305 s390
1306 sh4
1307 sparc
1308 sparc64
1309 tilegx
1310 tilepro
1311 tomi
1312 x86
1313 x86_32
1314 x86_64
1315 "
1316
1317 ARCH_EXT_LIST_ARM="
1318 armv5te
1319 armv6
1320 armv6t2
1321 armv8
1322 neon
1323 vfp
1324 vfpv3
1325 "
1326
1327 ARCH_EXT_LIST_X86_SIMD="
1328 amd3dnow
1329 amd3dnowext
1330 avx
1331 avx2
1332 fma3
1333 fma4
1334 mmx
1335 mmxext
1336 sse
1337 sse2
1338 sse3
1339 sse4
1340 sse42
1341 ssse3
1342 xop
1343 "
1344
1345 ARCH_EXT_LIST_PPC="
1346 altivec
1347 dcbzl
1348 ldbrx
1349 power8
1350 ppc4xx
1351 vsx
1352 "
1353
1354 ARCH_EXT_LIST_X86="
1355 $ARCH_EXT_LIST_X86_SIMD
1356 cpunop
1357 i686
1358 "
1359
1360 ARCH_EXT_LIST_MIPS="
1361 loongson
1362 mips32r1
1363 mips64r1
1364 mips32r2
1365 mips64r2
1366 mips32r6
1367 mips64r6
1368 "
1369
1370 ARCH_EXT_LIST="
1371 $ARCH_EXT_LIST_ARM
1372 $ARCH_EXT_LIST_MIPS
1373 $ARCH_EXT_LIST_PPC
1374 $ARCH_EXT_LIST_X86
1375 vis
1376 "
1377
1378 ARCH_FEATURES="
1379 aligned_stack
1380 fast_64bit
1381 fast_clz
1382 fast_cmov
1383 local_aligned_8
1384 local_aligned_16
1385 simd_align_16
1386 "
1387
1388 BUILTIN_LIST="
1389 atomic_cas_ptr
1390 machine_rw_barrier
1391 MemoryBarrier
1392 mm_empty
1393 rdtsc
1394 sync_val_compare_and_swap
1395 "
1396 HAVE_LIST_CMDLINE="
1397 inline_asm
1398 symver
1399 yasm
1400 "
1401
1402 HAVE_LIST_PUB="
1403 bigendian
1404 fast_unaligned
1405 "
1406
1407 HEADERS_LIST="
1408 alsa_asoundlib_h
1409 altivec_h
1410 arpa_inet_h
1411 cdio_paranoia_h
1412 cdio_paranoia_paranoia_h
1413 dev_bktr_ioctl_bt848_h
1414 dev_bktr_ioctl_meteor_h
1415 dev_ic_bt8xx_h
1416 dev_video_bktr_ioctl_bt848_h
1417 dev_video_meteor_ioctl_meteor_h
1418 direct_h
1419 dlfcn_h
1420 d3d11_h
1421 dxva_h
1422 gsm_h
1423 io_h
1424 mach_mach_time_h
1425 machine_ioctl_bt848_h
1426 machine_ioctl_meteor_h
1427 malloc_h
1428 poll_h
1429 sndio_h
1430 soundcard_h
1431 sys_mman_h
1432 sys_param_h
1433 sys_resource_h
1434 sys_select_h
1435 sys_soundcard_h
1436 sys_time_h
1437 sys_un_h
1438 sys_videoio_h
1439 unistd_h
1440 valgrind_valgrind_h
1441 windows_h
1442 winsock2_h
1443 "
1444
1445 INTRINSICS_LIST="
1446 intrinsics_neon
1447 "
1448
1449 MATH_FUNCS="
1450 atanf
1451 atan2f
1452 cbrtf
1453 cosf
1454 exp2
1455 exp2f
1456 expf
1457 isinf
1458 isnan
1459 ldexpf
1460 llrint
1461 llrintf
1462 log2
1463 log2f
1464 log10f
1465 lrint
1466 lrintf
1467 powf
1468 rint
1469 round
1470 roundf
1471 sinf
1472 trunc
1473 truncf
1474 "
1475
1476 SYSTEM_FUNCS="
1477 aligned_malloc
1478 clock_gettime
1479 closesocket
1480 CommandLineToArgvW
1481 CoTaskMemFree
1482 CryptGenRandom
1483 dlopen
1484 fcntl
1485 flt_lim
1486 fork
1487 getaddrinfo
1488 gethrtime
1489 getopt
1490 GetProcessAffinityMask
1491 GetProcessMemoryInfo
1492 GetProcessTimes
1493 getrusage
1494 getservbyport
1495 GetSystemTimeAsFileTime
1496 gettimeofday
1497 gmtime_r
1498 inet_aton
1499 isatty
1500 jack_port_get_latency_range
1501 LoadLibrary
1502 localtime_r
1503 mach_absolute_time
1504 MapViewOfFile
1505 memalign
1506 mkstemp
1507 mmap
1508 mprotect
1509 nanosleep
1510 posix_memalign
1511 sched_getaffinity
1512 SetConsoleTextAttribute
1513 setmode
1514 setrlimit
1515 Sleep
1516 strerror_r
1517 sysconf
1518 sysctl
1519 usleep
1520 VirtualAlloc
1521 "
1522
1523 TOOLCHAIN_FEATURES="
1524 as_dn_directive
1525 as_func
1526 as_object_arch
1527 asm_mod_q
1528 attribute_may_alias
1529 attribute_packed
1530 ebp_available
1531 ebx_available
1532 gnu_as
1533 ibm_asm
1534 inline_asm_labels
1535 pragma_deprecated
1536 symver_asm_label
1537 symver_gnu_asm
1538 vfp_args
1539 xform_asm
1540 xmm_clobbers
1541 "
1542
1543 TYPES_LIST="
1544 CONDITION_VARIABLE_Ptr
1545 socklen_t
1546 struct_addrinfo
1547 struct_group_source_req
1548 struct_ip_mreq_source
1549 struct_ipv6_mreq
1550 struct_pollfd
1551 struct_rusage_ru_maxrss
1552 struct_sockaddr_in6
1553 struct_sockaddr_sa_len
1554 struct_sockaddr_storage
1555 struct_v4l2_frmivalenum_discrete
1556 "
1557
1558 HAVE_LIST="
1559 $ARCH_EXT_LIST
1560 $(add_suffix _external $ARCH_EXT_LIST)
1561 $(add_suffix _inline $ARCH_EXT_LIST)
1562 $ARCH_FEATURES
1563 $ATOMICS_LIST
1564 $BUILTIN_LIST
1565 $HAVE_LIST_CMDLINE
1566 $HAVE_LIST_PUB
1567 $HEADERS_LIST
1568 $INTRINSICS_LIST
1569 $MATH_FUNCS
1570 $SYSTEM_FUNCS
1571 $THREADS_LIST
1572 $TOOLCHAIN_FEATURES
1573 $TYPES_LIST
1574 atomics_native
1575 dos_paths
1576 dxva2_lib
1577 libc_msvcrt
1578 libdc1394_1
1579 libdc1394_2
1580 sdl
1581 section_data_rel_ro
1582 threads
1583 vaapi_x11
1584 vdpau_x11
1585 xlib
1586 "
1587
1588 # options emitted with CONFIG_ prefix but not available on the command line
1589 CONFIG_EXTRA="
1590 aandcttables
1591 ac3dsp
1592 audio_frame_queue
1593 audiodsp
1594 blockdsp
1595 bswapdsp
1596 cabac
1597 dvprofile
1598 faandct
1599 faanidct
1600 fdctdsp
1601 flacdsp
1602 fmtconvert
1603 g722dsp
1604 gcrypt
1605 gmp
1606 golomb
1607 gplv3
1608 h263dsp
1609 h264chroma
1610 h264dsp
1611 h264pred
1612 h264qpel
1613 hpeldsp
1614 huffman
1615 huffyuvdsp
1616 huffyuvencdsp
1617 idctdsp
1618 iirfilter
1619 imdct15
1620 intrax8
1621 ividsp
1622 jpegtables
1623 libx262
1624 lgplv3
1625 lpc
1626 lzf
1627 me_cmp
1628 mpeg_er
1629 mpegaudio
1630 mpegaudiodsp
1631 mpegvideo
1632 mpegvideoenc
1633 mss34dsp
1634 pixblockdsp
1635 qpeldsp
1636 qsv
1637 qsvdec
1638 qsvenc
1639 rangecoder
1640 riffdec
1641 riffenc
1642 rtpdec
1643 rtpenc_chain
1644 rv34dsp
1645 sinewin
1646 snappy
1647 startcode
1648 texturedsp
1649 texturedspenc
1650 tpeldsp
1651 videodsp
1652 vp3dsp
1653 vp56dsp
1654 vp8dsp
1655 wma_freqs
1656 wmv2dsp
1657 "
1658
1659 CMDLINE_SELECT="
1660 $ARCH_EXT_LIST
1661 $CONFIG_LIST
1662 $HAVE_LIST_CMDLINE
1663 $THREADS_LIST
1664 asm
1665 cross_compile
1666 debug
1667 extra_warnings
1668 logging
1669 lto
1670 optimizations
1671 rpath
1672 "
1673
1674 PATHS_LIST="
1675 bindir
1676 datadir
1677 docdir
1678 incdir
1679 libdir
1680 mandir
1681 prefix
1682 shlibdir
1683 "
1684
1685 CMDLINE_SET="
1686 $PATHS_LIST
1687 ar
1688 arch
1689 as
1690 build_suffix
1691 cc
1692 cpu
1693 cross_prefix
1694 dep_cc
1695 env
1696 extra_version
1697 host_cc
1698 host_cflags
1699 host_ld
1700 host_ldflags
1701 host_libs
1702 host_os
1703 ld
1704 logfile
1705 malloc_prefix
1706 nm
1707 optflags
1708 pkg_config
1709 pkg_config_flags
1710 random_seed
1711 samples
1712 sysinclude
1713 sysroot
1714 target_exec
1715 target_os
1716 target_path
1717 target_samples
1718 toolchain
1719 "
1720
1721 CMDLINE_APPEND="
1722 extra_cflags
1723 host_cppflags
1724 "
1725
1726 # code dependency declarations
1727
1728 # architecture extensions
1729
1730 armv5te_deps="arm"
1731 armv6_deps="arm"
1732 armv6t2_deps="arm"
1733 armv8_deps="aarch64"
1734 neon_deps_any="aarch64 arm"
1735 intrinsics_neon_deps="neon"
1736 vfp_deps_any="aarch64 arm"
1737 vfpv3_deps="vfp"
1738
1739 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1740
1741 altivec_deps="ppc"
1742 ppc4xx_deps="ppc"
1743 vsx_deps="altivec"
1744 power8_deps="vsx"
1745
1746 cpunop_deps="i686"
1747 x86_64_select="i686"
1748 x86_64_suggest="fast_cmov"
1749
1750 amd3dnow_deps="mmx"
1751 amd3dnowext_deps="amd3dnow"
1752 i686_deps="x86"
1753 mmx_deps="x86"
1754 mmxext_deps="mmx"
1755 sse_deps="mmxext"
1756 sse2_deps="sse"
1757 sse3_deps="sse2"
1758 ssse3_deps="sse3"
1759 sse4_deps="ssse3"
1760 sse42_deps="sse4"
1761 avx_deps="sse42"
1762 xop_deps="avx"
1763 fma3_deps="avx"
1764 fma4_deps="avx"
1765 avx2_deps="avx"
1766
1767 mmx_external_deps="yasm"
1768 mmx_inline_deps="inline_asm"
1769 mmx_suggest="mmx_external mmx_inline"
1770
1771 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1772 eval dep=\$${ext}_deps
1773 eval ${ext}_external_deps='"${dep}_external"'
1774 eval ${ext}_inline_deps='"${dep}_inline"'
1775 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1776 done
1777
1778 aligned_stack_if_any="aarch64 ppc x86"
1779 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1780 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1781 fast_unaligned_if_any="aarch64 ppc x86"
1782 simd_align_16_if_any="altivec neon sse"
1783
1784 # system capabilities
1785 symver_if_any="symver_asm_label symver_gnu_asm"
1786 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1787
1788 # threading support
1789 atomics_gcc_if="sync_val_compare_and_swap"
1790 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1791 atomics_win32_if="MemoryBarrier"
1792 atomics_native_if_any="$ATOMICS_LIST"
1793 w32threads_deps="atomics_native"
1794 threads_if_any="$THREADS_LIST"
1795
1796 # subsystems
1797 dct_select="rdft"
1798 error_resilience_select="me_cmp"
1799 faandct_deps="faan fdctdsp"
1800 faanidct_deps="faan idctdsp"
1801 intrax8_select="error_resilience"
1802 mdct_select="fft"
1803 rdft_select="fft"
1804 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1805 mpeg_er_select="error_resilience"
1806 mpegaudio_select="mpegaudiodsp"
1807 mpegaudiodsp_select="dct"
1808 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1809 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1810 nvenc_deps_any="dlopen LoadLibrary"
1811 nvenc_extralibs='$ldl'
1812 qsvdec_select="qsv"
1813 qsvenc_select="qsv"
1814
1815 # decoders / encoders
1816 aac_decoder_select="imdct15 mdct sinewin"
1817 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1818 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1819 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1820 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1821 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1822 adpcm_g722_decoder_select="g722dsp"
1823 adpcm_g722_encoder_select="g722dsp"
1824 aic_decoder_select="golomb idctdsp"
1825 alac_encoder_select="lpc"
1826 als_decoder_select="bswapdsp"
1827 amrnb_decoder_select="lsp"
1828 amrwb_decoder_select="lsp"
1829 amv_decoder_select="sp5x_decoder"
1830 ape_decoder_select="bswapdsp"
1831 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1832 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1833 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1834 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1835 atrac1_decoder_select="mdct sinewin"
1836 atrac3_decoder_select="mdct"
1837 atrac3p_decoder_select="mdct sinewin"
1838 bink_decoder_select="blockdsp hpeldsp"
1839 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1840 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1841 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1842 cllc_decoder_select="bswapdsp"
1843 comfortnoise_encoder_select="lpc"
1844 cook_decoder_select="audiodsp mdct sinewin"
1845 cscd_decoder_select="lzo"
1846 cscd_decoder_suggest="zlib"
1847 dca_decoder_select="fmtconvert mdct"
1848 dds_decoder_select="texturedsp"
1849 dnxhd_decoder_select="blockdsp idctdsp"
1850 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1851 dvvideo_decoder_select="dvprofile idctdsp"
1852 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1853 dxa_decoder_deps="zlib"
1854 dxv_decoder_select="lzf texturedsp"
1855 eac3_decoder_select="ac3_decoder"
1856 eac3_encoder_select="ac3_encoder"
1857 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1858 eatgq_decoder_select="aandcttables idctdsp"
1859 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1860 exr_decoder_deps="zlib"
1861 ffv1_decoder_select="golomb rangecoder"
1862 ffv1_encoder_select="rangecoder"
1863 ffvhuff_decoder_select="huffyuv_decoder"
1864 ffvhuff_encoder_select="huffyuv_encoder"
1865 fic_decoder_select="golomb"
1866 flac_decoder_select="flacdsp golomb"
1867 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1868 flashsv_decoder_deps="zlib"
1869 flashsv_encoder_deps="zlib"
1870 flashsv2_decoder_deps="zlib"
1871 flv_decoder_select="h263_decoder"
1872 flv_encoder_select="h263_encoder"
1873 fourxm_decoder_select="blockdsp bswapdsp"
1874 fraps_decoder_select="bswapdsp huffman"
1875 g2m_decoder_deps="zlib"
1876 g2m_decoder_select="blockdsp idctdsp jpegtables"
1877 h261_decoder_select="mpeg_er mpegvideo"
1878 h261_encoder_select="aandcttables mpegvideoenc"
1879 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1880 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1881 h263i_decoder_select="h263_decoder"
1882 h263p_encoder_select="h263_encoder"
1883 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1884 h264_decoder_suggest="error_resilience"
1885 h264_nvenc_encoder_deps="nvenc"
1886 h264_qsv_decoder_deps="libmfx"
1887 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1888 h264_qsv_encoder_deps="libmfx"
1889 h264_qsv_encoder_select="qsvenc"
1890 hap_decoder_select="snappy texturedsp"
1891 hap_encoder_deps="libsnappy"
1892 hap_encoder_select="texturedspenc"
1893 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1894 hevc_nvenc_encoder_deps="nvenc"
1895 hevc_qsv_encoder_deps="libmfx"
1896 hevc_qsv_decoder_deps="libmfx"
1897 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1898 hevc_qsv_encoder_select="qsvenc"
1899 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1900 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1901 iac_decoder_select="imc_decoder"
1902 imc_decoder_select="bswapdsp fft mdct sinewin"
1903 indeo3_decoder_select="hpeldsp"
1904 indeo4_decoder_select="ividsp"
1905 indeo5_decoder_select="ividsp"
1906 interplay_video_decoder_select="hpeldsp"
1907 jpegls_decoder_select="golomb mjpeg_decoder"
1908 jpegls_encoder_select="golomb"
1909 jv_decoder_select="blockdsp"
1910 lagarith_decoder_select="huffyuvdsp"
1911 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1912 loco_decoder_select="golomb"
1913 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1914 metasound_decoder_select="lsp mdct sinewin"
1915 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1916 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1917 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1918 mjpegb_decoder_select="mjpeg_decoder"
1919 mlp_decoder_select="mlp_parser"
1920 motionpixels_decoder_select="bswapdsp"
1921 mp1_decoder_select="mpegaudio"
1922 mp1float_decoder_select="mpegaudio"
1923 mp2_decoder_select="mpegaudio"
1924 mp2float_decoder_select="mpegaudio"
1925 mp3_decoder_select="mpegaudio"
1926 mp3adu_decoder_select="mpegaudio"
1927 mp3adufloat_decoder_select="mpegaudio"
1928 mp3float_decoder_select="mpegaudio"
1929 mp3on4_decoder_select="mpegaudio"
1930 mp3on4float_decoder_select="mpegaudio"
1931 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1932 mpc8_decoder_select="mpegaudiodsp"
1933 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1934 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1935 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1936 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1937 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1938 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1939 mpeg2_qsv_decoder_deps="libmfx"
1940 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
1941 mpeg2_qsv_encoder_deps="libmfx"
1942 mpeg2_qsv_encoder_select="qsvenc"
1943 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1944 mpeg4_encoder_select="h263_encoder"
1945 msa1_decoder_select="mss34dsp"
1946 msmpeg4v1_decoder_select="h263_decoder"
1947 msmpeg4v2_decoder_select="h263_decoder"
1948 msmpeg4v2_encoder_select="h263_encoder"
1949 msmpeg4v3_decoder_select="h263_decoder"
1950 msmpeg4v3_encoder_select="h263_encoder"
1951 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1952 mts2_decoder_select="mss34dsp"
1953 mxpeg_decoder_select="mjpeg_decoder"
1954 nellymoser_decoder_select="mdct sinewin"
1955 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1956 nuv_decoder_select="idctdsp lzo"
1957 on2avc_decoder_select="mdct"
1958 opus_decoder_deps="avresample"
1959 opus_decoder_select="imdct15"
1960 png_decoder_deps="zlib"
1961 png_encoder_deps="zlib"
1962 png_encoder_select="huffyuvencdsp"
1963 prores_decoder_select="idctdsp"
1964 prores_encoder_select="fdctdsp"
1965 qcelp_decoder_select="lsp"
1966 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1967 ra_144_encoder_select="audio_frame_queue lpc"
1968 ralf_decoder_select="golomb"
1969 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1970 rv10_encoder_select="h263_encoder"
1971 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1972 rv20_encoder_select="h263_encoder"
1973 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1974 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1975 shorten_decoder_select="golomb"
1976 sipr_decoder_select="lsp"
1977 sp5x_decoder_select="mjpeg_decoder"
1978 svq1_decoder_select="hpeldsp"
1979 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1980 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1981 svq3_decoder_suggest="zlib"
1982 tak_decoder_select="audiodsp"
1983 tdsc_decoder_deps="zlib"
1984 tdsc_decoder_select="mjpeg_decoder"
1985 theora_decoder_select="vp3_decoder"
1986 thp_decoder_select="mjpeg_decoder"
1987 tiff_decoder_suggest="zlib"
1988 tiff_encoder_suggest="zlib"
1989 truehd_decoder_select="mlp_decoder"
1990 truemotion2_decoder_select="bswapdsp"
1991 truespeech_decoder_select="bswapdsp"
1992 tscc_decoder_deps="zlib"
1993 txd_decoder_select="texturedsp"
1994 twinvq_decoder_select="mdct lsp sinewin"
1995 utvideo_decoder_select="bswapdsp"
1996 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1997 vble_decoder_select="huffyuvdsp"
1998 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1999 vc1image_decoder_select="vc1_decoder"
2000 vorbis_decoder_select="mdct"
2001 vorbis_encoder_select="mdct"
2002 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2003 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2004 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2005 vp6a_decoder_select="vp6_decoder"
2006 vp6f_decoder_select="vp6_decoder"
2007 vp7_decoder_select="h264pred videodsp vp8dsp"
2008 vp8_decoder_select="h264pred videodsp vp8dsp"
2009 vp9_decoder_select="videodsp"
2010 webp_decoder_select="vp8_decoder"
2011 wmapro_decoder_select="mdct sinewin wma_freqs"
2012 wmav1_decoder_select="mdct sinewin wma_freqs"
2013 wmav1_encoder_select="mdct sinewin wma_freqs"
2014 wmav2_decoder_select="mdct sinewin wma_freqs"
2015 wmav2_encoder_select="mdct sinewin wma_freqs"
2016 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2017 wmv1_decoder_select="h263_decoder"
2018 wmv1_encoder_select="h263_encoder"
2019 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2020 wmv2_encoder_select="h263_encoder wmv2dsp"
2021 wmv3_decoder_select="vc1_decoder"
2022 wmv3image_decoder_select="wmv3_decoder"
2023 zerocodec_decoder_deps="zlib"
2024 zlib_decoder_deps="zlib"
2025 zlib_encoder_deps="zlib"
2026 zmbv_decoder_deps="zlib"
2027 zmbv_encoder_deps="zlib"
2028
2029 # hardware accelerators
2030 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2031 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2032 vaapi_deps="va_va_h"
2033 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2034 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2035 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2036
2037 h263_vaapi_hwaccel_deps="vaapi"
2038 h263_vaapi_hwaccel_select="h263_decoder"
2039 h263_vdpau_hwaccel_deps="vdpau"
2040 h263_vdpau_hwaccel_select="h263_decoder"
2041 h264_d3d11va_hwaccel_deps="d3d11va"
2042 h264_d3d11va_hwaccel_select="h264_decoder"
2043 h264_dxva2_hwaccel_deps="dxva2"
2044 h264_dxva2_hwaccel_select="h264_decoder"
2045 h264_mmal_decoder_deps="mmal"
2046 h264_mmal_hwaccel_deps="mmal"
2047 h264_mmal_decoder_select="h264_decoder"
2048 h264_mmal_encoder_deps="mmal"
2049 h264_qsv_hwaccel_deps="libmfx"
2050 h264_vaapi_hwaccel_deps="vaapi"
2051 h264_vaapi_hwaccel_select="h264_decoder"
2052 h264_vda_hwaccel_deps="vda"
2053 h264_vda_hwaccel_select="h264_decoder"
2054 h264_vda_old_hwaccel_deps="vda"
2055 h264_vda_old_hwaccel_select="h264_decoder"
2056 h264_vdpau_hwaccel_deps="vdpau"
2057 h264_vdpau_hwaccel_select="h264_decoder"
2058 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2059 hevc_d3d11va_hwaccel_select="hevc_decoder"
2060 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2061 hevc_dxva2_hwaccel_select="hevc_decoder"
2062 hevc_qsv_hwaccel_deps="libmfx"
2063 mpeg1_vdpau_hwaccel_deps="vdpau"
2064 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2065 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2066 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2067 mpeg2_dxva2_hwaccel_deps="dxva2"
2068 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2069 mpeg2_qsv_hwaccel_deps="libmfx"
2070 mpeg2_vaapi_hwaccel_deps="vaapi"
2071 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2072 mpeg2_vdpau_hwaccel_deps="vdpau"
2073 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2074 mpeg4_vaapi_hwaccel_deps="vaapi"
2075 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2076 mpeg4_vdpau_hwaccel_deps="vdpau"
2077 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2078 vc1_d3d11va_hwaccel_deps="d3d11va"
2079 vc1_d3d11va_hwaccel_select="vc1_decoder"
2080 vc1_dxva2_hwaccel_deps="dxva2"
2081 vc1_dxva2_hwaccel_select="vc1_decoder"
2082 vc1_vaapi_hwaccel_deps="vaapi"
2083 vc1_vaapi_hwaccel_select="vc1_decoder"
2084 vc1_vdpau_hwaccel_deps="vdpau"
2085 vc1_vdpau_hwaccel_select="vc1_decoder"
2086 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2087 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2088 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2089 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2090
2091 # parsers
2092 h264_parser_select="h264_decoder"
2093 hevc_parser_select="golomb"
2094 mpegvideo_parser_select="mpegvideo"
2095 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2096 vc1_parser_select="mpegvideo startcode vc1_decoder"
2097
2098 # bitstream_filters
2099 mjpeg2jpeg_bsf_select="jpegtables"
2100
2101 # external libraries
2102 libdcadec_decoder_deps="libdcadec"
2103 libfaac_encoder_deps="libfaac"
2104 libfaac_encoder_select="audio_frame_queue"
2105 libfdk_aac_decoder_deps="libfdk_aac"
2106 libfdk_aac_encoder_deps="libfdk_aac"
2107 libfdk_aac_encoder_select="audio_frame_queue"
2108 libgsm_decoder_deps="libgsm"
2109 libgsm_encoder_deps="libgsm"
2110 libgsm_ms_decoder_deps="libgsm"
2111 libgsm_ms_encoder_deps="libgsm"
2112 libilbc_decoder_deps="libilbc"
2113 libilbc_encoder_deps="libilbc"
2114 libmp3lame_encoder_deps="libmp3lame"
2115 libmp3lame_encoder_select="audio_frame_queue"
2116 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2117 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2118 libopencore_amrnb_encoder_select="audio_frame_queue"
2119 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2120 libopenh264_encoder_deps="libopenh264"
2121 libopenjpeg_decoder_deps="libopenjpeg"
2122 libopenjpeg_encoder_deps="libopenjpeg"
2123 libopus_decoder_deps="libopus"
2124 libopus_encoder_deps="libopus"
2125 libopus_encoder_select="audio_frame_queue"
2126 libschroedinger_decoder_deps="libschroedinger"
2127 libschroedinger_encoder_deps="libschroedinger"
2128 libspeex_decoder_deps="libspeex"
2129 libspeex_encoder_deps="libspeex"
2130 libspeex_encoder_select="audio_frame_queue"
2131 libtheora_encoder_deps="libtheora"
2132 libtwolame_encoder_deps="libtwolame"
2133 libvo_aacenc_encoder_deps="libvo_aacenc"
2134 libvo_aacenc_encoder_select="audio_frame_queue"
2135 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2136 libvorbis_encoder_deps="libvorbis"
2137 libvorbis_encoder_select="audio_frame_queue"
2138 libvpx_vp8_decoder_deps="libvpx"
2139 libvpx_vp8_encoder_deps="libvpx"
2140 libvpx_vp9_decoder_deps="libvpx"
2141 libvpx_vp9_encoder_deps="libvpx"
2142 libwavpack_encoder_deps="libwavpack"
2143 libwebp_encoder_deps="libwebp"
2144 libx262_encoder_deps="libx262"
2145 libx264_encoder_deps="libx264"
2146 libx265_encoder_deps="libx265"
2147 libxavs_encoder_deps="libxavs"
2148 libxvid_encoder_deps="libxvid"
2149
2150 # demuxers / muxers
2151 ac3_demuxer_select="ac3_parser"
2152 asf_demuxer_select="riffdec"
2153 asf_muxer_select="riffenc"
2154 asf_stream_muxer_select="asf_muxer"
2155 avi_demuxer_select="riffdec"
2156 avi_muxer_select="riffenc"
2157 avisynth_demuxer_deps="avisynth"
2158 avisynth_demuxer_select="riffdec"
2159 caf_demuxer_select="riffdec"
2160 dash_muxer_select="mp4_muxer"
2161 dirac_demuxer_select="dirac_parser"
2162 dv_demuxer_select="dvprofile"
2163 dv_muxer_select="dvprofile"
2164 dxa_demuxer_select="riffdec"
2165 eac3_demuxer_select="ac3_parser"
2166 f4v_muxer_select="mov_muxer"
2167 flac_demuxer_select="flac_parser"
2168 hds_muxer_select="flv_muxer"
2169 hls_muxer_select="mpegts_muxer"
2170 ipod_muxer_select="mov_muxer"
2171 ismv_muxer_select="mov_muxer"
2172 matroska_audio_muxer_select="matroska_muxer"
2173 matroska_demuxer_select="riffdec"
2174 matroska_demuxer_suggest="bzlib lzo zlib"
2175 matroska_muxer_select="riffenc"
2176 mmf_muxer_select="riffenc"
2177 mov_demuxer_select="riffdec"
2178 mov_demuxer_suggest="zlib"
2179 mov_muxer_select="riffenc rtpenc_chain"
2180 mp3_demuxer_select="mpegaudio_parser"
2181 mp4_muxer_select="mov_muxer"
2182 mpegts_muxer_select="adts_muxer latm_muxer"
2183 mpegtsraw_demuxer_select="mpegts_demuxer"
2184 mxf_d10_muxer_select="mxf_muxer"
2185 nut_muxer_select="riffenc"
2186 nuv_demuxer_select="riffdec"
2187 oga_muxer_select="ogg_muxer"
2188 ogg_demuxer_select="golomb"
2189 opus_muxer_select="ogg_muxer"
2190 psp_muxer_select="mov_muxer"
2191 rtp_demuxer_select="sdp_demuxer"
2192 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2193 rtsp_demuxer_select="http_protocol rtpdec"
2194 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2195 sap_demuxer_select="sdp_demuxer"
2196 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2197 sdp_demuxer_select="rtpdec"
2198 smoothstreaming_muxer_select="ismv_muxer"
2199 spdif_muxer_select="aac_parser"
2200 spx_muxer_select="ogg_muxer"
2201 tak_demuxer_select="tak_parser"
2202 tg2_muxer_select="mov_muxer"
2203 tgp_muxer_select="mov_muxer"
2204 w64_demuxer_select="wav_demuxer"
2205 wav_demuxer_select="riffdec"
2206 wav_muxer_select="riffenc"
2207 webm_muxer_select="riffenc"
2208 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2209 wtv_demuxer_select="riffdec"
2210 xmv_demuxer_select="riffdec"
2211 xwma_demuxer_select="riffdec"
2212
2213 # indevs / outdevs
2214 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2215 alsa_outdev_deps="alsa_asoundlib_h"
2216 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2217 dv1394_indev_deps="dv1394"
2218 dv1394_indev_select="dv_demuxer"
2219 fbdev_indev_deps="linux_fb_h"
2220 jack_indev_deps="jack_jack_h pthreads"
2221 libcdio_indev_deps="libcdio"
2222 libdc1394_indev_deps="libdc1394"
2223 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2224 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2225 pulse_indev_deps="libpulse"
2226 sndio_indev_deps="sndio_h"
2227 sndio_outdev_deps="sndio_h"
2228 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2229 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2230 vfwcap_indev_extralibs="-lavicap32"
2231 x11grab_indev_deps="x11grab"
2232 x11grab_xcb_indev_deps="libxcb"
2233
2234 # protocols
2235 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2236 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2237 ffrtmpcrypt_protocol_select="tcp_protocol"
2238 ffrtmphttp_protocol_deps="!librtmp_protocol"
2239 ffrtmphttp_protocol_select="http_protocol"
2240 gopher_protocol_select="network"
2241 http_protocol_select="tcp_protocol"
2242 httpproxy_protocol_select="tcp_protocol"
2243 https_protocol_select="tls_protocol"
2244 icecast_protocol_select="http_protocol"
2245 librtmp_protocol_deps="librtmp"
2246 librtmpe_protocol_deps="librtmp"
2247 librtmps_protocol_deps="librtmp"
2248 librtmpt_protocol_deps="librtmp"
2249 librtmpte_protocol_deps="librtmp"
2250 mmsh_protocol_select="http_protocol"
2251 mmst_protocol_select="network"
2252 rtmp_protocol_deps="!librtmp_protocol"
2253 rtmp_protocol_select="tcp_protocol"
2254 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2255 rtmps_protocol_deps="!librtmp_protocol"
2256 rtmps_protocol_select="tls_protocol"
2257 rtmpt_protocol_select="ffrtmphttp_protocol"
2258 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2259 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2260 rtp_protocol_select="udp_protocol"
2261 sctp_protocol_deps="struct_sctp_event_subscribe"
2262 sctp_protocol_select="network"
2263 srtp_protocol_select="rtp_protocol"
2264 tcp_protocol_select="network"
2265 tls_gnutls_protocol_deps="gnutls"
2266 tls_gnutls_protocol_select="tcp_protocol"
2267 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2268 tls_openssl_protocol_select="tcp_protocol"
2269 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2270 udp_protocol_select="network"
2271 unix_protocol_deps="sys_un_h"
2272 unix_protocol_select="network"
2273
2274 # filters
2275 blackframe_filter_deps="gpl"
2276 boxblur_filter_deps="gpl"
2277 bs2b_filter_deps="libbs2b"
2278 cropdetect_filter_deps="gpl"
2279 delogo_filter_deps="gpl"
2280 drawtext_filter_deps="libfreetype"
2281 frei0r_filter_deps="frei0r dlopen"
2282 frei0r_filter_extralibs='$ldl'
2283 frei0r_src_filter_deps="frei0r dlopen"
2284 frei0r_src_filter_extralibs='$ldl'
2285 hqdn3d_filter_deps="gpl"
2286 interlace_filter_deps="gpl"
2287 ocv_filter_deps="libopencv"
2288 resample_filter_deps="avresample"
2289 scale_filter_deps="swscale"
2290
2291 # examples
2292 avcodec_example_deps="avcodec avutil"
2293 filter_audio_example_deps="avfilter avutil"
2294 metadata_example_deps="avformat avutil"
2295 output_example_deps="avcodec avformat avutil swscale"
2296 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2297 transcode_aac_example_deps="avcodec avformat avresample"
2298
2299 # libraries, in linking order
2300 avcodec_deps="avutil"
2301 avdevice_deps="avformat avcodec avutil"
2302 avfilter_deps="avutil"
2303 avformat_deps="avcodec avutil"
2304 avresample_deps="avutil"
2305 swscale_deps="avutil"
2306
2307 # programs
2308 avconv_deps="avcodec avfilter avformat avresample swscale"
2309 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2310 fps_filter null_filter resample_filter scale_filter
2311 setpts_filter trim_filter"
2312 avplay_deps="avcodec avformat avresample swscale sdl"
2313 avplay_libs='$sdl_libs'
2314 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2315 avprobe_deps="avcodec avformat"
2316
2317 # documentation
2318 pod2man_deps="doc"
2319 texi2html_deps="doc"
2320
2321 # default parameters
2322
2323 logfile="config.log"
2324
2325 # installation paths
2326 prefix_default="/usr/local"
2327 bindir_default='${prefix}/bin'
2328 datadir_default='${prefix}/share/avconv'
2329 docdir_default='${prefix}/share/doc/libav'
2330 incdir_default='${prefix}/include'
2331 libdir_default='${prefix}/lib'
2332 mandir_default='${prefix}/share/man'
2333 shlibdir_default="$libdir_default"
2334
2335 # toolchain
2336 ar_default="ar"
2337 cc_default="gcc"
2338 host_cc_default="gcc"
2339 cp_f="cp -f"
2340 ln_s="ln -s -f"
2341 nm_default="nm -g"
2342 objformat="elf"
2343 pkg_config_default=pkg-config
2344 ranlib="ranlib"
2345 strip="strip"
2346 yasmexe="yasm"
2347
2348 # machine
2349 arch_default=$(uname -m)
2350 cpu="generic"
2351 intrinsics="none"
2352
2353 # OS
2354 target_os_default=$(tolower $(uname -s))
2355 host_os=$target_os_default
2356
2357 # configurable options
2358 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2359
2360 enable asm
2361 enable debug
2362 enable doc
2363 enable faan faandct faanidct
2364 enable optimizations
2365 enable safe_bitstream_reader
2366 enable static
2367 enable swscale_alpha
2368 enable valgrind_backtrace
2369
2370 # By default, enable only those hwaccels that have no external dependencies.
2371 enable d3d11va dxva2 vda vdpau
2372
2373 # build settings
2374 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2375 LIBPREF="lib"
2376 LIBSUF=".a"
2377 FULLNAME='$(NAME)$(BUILDSUF)'
2378 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2379 SLIBPREF="lib"
2380 SLIBSUF=".so"
2381 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2382 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2383 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2384 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2385 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2386 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2387
2388 asflags_filter=echo
2389 cflags_filter=echo
2390 ldflags_filter=echo
2391
2392 AS_C='-c'
2393 AS_O='-o $@'
2394 CC_C='-c'
2395 CC_E='-E -o $@'
2396 CC_O='-o $@'
2397 LD_O='-o $@'
2398 LD_LIB='-l%'
2399 LD_PATH='-L'
2400 HOSTCC_C='-c'
2401 HOSTCC_E='-E -o $@'
2402 HOSTCC_O='-o $@'
2403 HOSTLD_O='-o $@'
2404
2405 host_libs='-lm'
2406 host_cflags_filter=echo
2407 host_ldflags_filter=echo
2408
2409 target_path='$(CURDIR)'
2410
2411 # since the object filename is not given with the -MM flag, the compiler
2412 # is only able to print the basename, and we must add the path ourselves
2413 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2414 DEPFLAGS='-MM'
2415
2416 # find source path
2417 if test -f configure; then
2418 source_path=.
2419 else
2420 source_path=$(cd $(dirname "$0"); pwd)
2421 echo "$source_path" | grep -q '[[:blank:]]' &&
2422 die "Out of tree builds are impossible with whitespace in source path."
2423 test -e "$source_path/config.h" &&
2424 die "Out of tree builds are impossible with config.h in source dir."
2425 fi
2426
2427 for v in "$@"; do
2428 r=${v#*=}
2429 l=${v%"$r"}
2430 r=$(sh_quote "$r")
2431 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2432 done
2433
2434 find_things(){
2435 thing=$1
2436 pattern=$2
2437 file=$source_path/$3
2438 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2439 }
2440
2441 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2442 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2443 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2444 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2445 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2446 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2447 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2448 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2449 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2450 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2451 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2452
2453 ALL_COMPONENTS="
2454 $BSF_LIST
2455 $DECODER_LIST
2456 $DEMUXER_LIST
2457 $ENCODER_LIST
2458 $FILTER_LIST
2459 $HWACCEL_LIST
2460 $INDEV_LIST
2461 $MUXER_LIST
2462 $OUTDEV_LIST
2463 $PARSER_LIST
2464 $PROTOCOL_LIST
2465 "
2466
2467 for n in $COMPONENT_LIST; do
2468 v=$(toupper ${n%s})_LIST
2469 eval enable \$$v
2470 eval ${n}_if_any="\$$v"
2471 done
2472
2473 enable $ARCH_EXT_LIST
2474
2475 die_unknown(){
2476 echo "Unknown option \"$1\"."
2477 echo "See $0 --help for available options."
2478 exit 1
2479 }
2480
2481 print_3_columns() {
2482 cat | tr ' ' '\n' | sort | pr -r -3 -t
2483 }
2484
2485 show_list() {
2486 suffix=_$1
2487 shift
2488 echo $* | sed s/$suffix//g | print_3_columns
2489 exit 0
2490 }
2491
2492 rand_list(){
2493 IFS=', '
2494 set -- $*
2495 unset IFS
2496 for thing; do
2497 comp=${thing%:*}
2498 prob=${thing#$comp}
2499 prob=${prob#:}
2500 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2501 echo "prob ${prob:-0.5}"
2502 printf '%s\n' $comp
2503 done
2504 }
2505
2506 do_random(){
2507 action=$1
2508 shift
2509 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2510 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2511 }
2512
2513 for opt do
2514 optval="${opt#*=}"
2515 case "$opt" in
2516 --extra-ldflags=*)
2517 add_ldflags $optval
2518 ;;
2519 --extra-ldexeflags=*)
2520 add_ldexeflags $optval
2521 ;;
2522 --extra-libs=*)
2523 add_extralibs $optval
2524 ;;
2525 --disable-devices)
2526 disable $INDEV_LIST $OUTDEV_LIST
2527 ;;
2528 --enable-debug=*)
2529 debuglevel="$optval"
2530 ;;
2531 --disable-programs)
2532 disable $PROGRAM_LIST
2533 ;;
2534 --disable-everything)
2535 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2536 ;;
2537 --disable-all)
2538 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2539 disable $LIBRARY_LIST $PROGRAM_LIST doc
2540 ;;
2541 --enable-random|--disable-random)
2542 action=${opt%%-random}
2543 do_random ${action#--} $COMPONENT_LIST
2544 ;;
2545 --enable-random=*|--disable-random=*)
2546 action=${opt%%-random=*}
2547 do_random ${action#--} $optval
2548 ;;
2549 --enable-*=*|--disable-*=*)
2550 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2551 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2552 eval list=\$$(toupper $thing)_LIST
2553 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2554 $action $(filter "$name" $list)
2555 ;;
2556 --enable-avserver|--disable-avserver*)
2557 warn "avserver has been removed, the ${opt} option is only"\
2558 "provided for compatibility and will be removed in the future"
2559 ;;
2560 --enable-?*|--disable-?*)
2561 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2562 if is_in $option $COMPONENT_LIST; then
2563 test $action = disable && action=unset
2564 eval $action \$$(toupper ${option%s})_LIST
2565 elif is_in $option $CMDLINE_SELECT; then
2566 $action $option
2567 else
2568 die_unknown $opt
2569 fi
2570 ;;
2571 --list-*)
2572 NAME="${opt#--list-}"
2573 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2574 NAME=${NAME%s}
2575 eval show_list $NAME \$$(toupper $NAME)_LIST
2576 ;;
2577 --help|-h) show_help
2578 ;;
2579 *)
2580 optname="${opt%%=*}"
2581 optname="${optname#--}"
2582 optname=$(echo "$optname" | sed 's/-/_/g')
2583 if is_in $optname $CMDLINE_SET; then
2584 eval $optname='$optval'
2585 elif is_in $optname $CMDLINE_APPEND; then
2586 append $optname "$optval"
2587 else
2588 die_unknown $opt
2589 fi
2590 ;;
2591 esac
2592 done
2593
2594 for e in $env; do
2595 eval "export $e"
2596 done
2597
2598 disabled logging && logfile=/dev/null
2599
2600 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2601 set >> $logfile
2602
2603 case "$toolchain" in
2604 clang-asan)
2605 cc_default="clang"
2606 add_cflags -fsanitize=address
2607 add_ldflags -fsanitize=address
2608 ;;
2609 clang-tsan)
2610 cc_default="clang"
2611 add_cflags -fsanitize=thread -pie
2612 add_ldflags -fsanitize=thread -pie
2613 ;;
2614 clang-usan)
2615 cc_default="clang"
2616 add_cflags -fsanitize=undefined -O1
2617 add_ldflags -fsanitize=undefined
2618 ;;
2619 gcc-asan)
2620 cc_default="gcc"
2621 add_cflags -fsanitize=address
2622 add_ldflags -fsanitize=address
2623 ;;
2624 gcc-tsan)
2625 cc_default="gcc"
2626 add_cflags -fsanitize=thread -pie -fPIC
2627 add_ldflags -fsanitize=thread -pie -fPIC
2628 ;;
2629 gcc-usan)
2630 cc_default="gcc"
2631 add_cflags -fsanitize=undefined
2632 add_ldflags -fsanitize=undefined
2633 ;;
2634 valgrind-massif)
2635 target_exec_default="valgrind"
2636 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2637 ;;
2638 valgrind-memcheck)
2639 target_exec_default="valgrind"
2640 target_exec_args="--track-origins=yes --leak-check=full"
2641 ;;
2642 msvc)
2643 # Check whether the current MSVC version needs the C99 converter.
2644 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2645 # support enough of C99 to build libav. Default to the new
2646 # behaviour if the regexp was unable to match anything, since this
2647 # successfully parses the version number of existing supported
2648 # versions that require the converter (MSVC 2010 and 2012).
2649 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2650 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2651 cc_default="cl"
2652 else
2653 cc_default="c99wrap cl"
2654 fi
2655 ld_default="$source_path/compat/windows/mslink"
2656 nm_default="dumpbin -symbols"
2657 ar_default="lib"
2658 case "$arch" in
2659 arm*)
2660 as_default="armasm"
2661 ;;
2662 esac
2663 target_os_default="win32"
2664 # Use a relative path for TMPDIR. This makes sure all the
2665 # ffconf temp files are written with a relative path, avoiding
2666 # issues with msys/win32 path conversion for MSVC parameters
2667 # such as -Fo<file> or -out:<file>.
2668 TMPDIR=.
2669 ;;
2670 icl)
2671 cc_default="icl"
2672 ld_default="xilink"
2673 nm_default="dumpbin -symbols"
2674 ar_default="xilib"
2675 target_os_default="win32"
2676 TMPDIR=.
2677 ;;
2678 gcov)
2679 add_cflags -fprofile-arcs -ftest-coverage
2680 add_ldflags -fprofile-arcs -ftest-coverage
2681 ;;
2682 hardened)
2683 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2684 add_cflags -fno-strict-overflow -fstack-protector-all
2685 add_ldflags -Wl,-z,relro -Wl,-z,now
2686 ;;
2687 ?*)
2688 die "Unknown toolchain $toolchain"
2689 ;;
2690 esac
2691
2692 test -n "$cross_prefix" && enable cross_compile
2693
2694 if enabled cross_compile; then
2695 test -n "$arch" && test -n "$target_os" ||
2696 die "Must specify target arch and OS when cross-compiling"
2697 fi
2698
2699 ar_default="${cross_prefix}${ar_default}"
2700 cc_default="${cross_prefix}${cc_default}"
2701 nm_default="${cross_prefix}${nm_default}"
2702 pkg_config_default="${cross_prefix}${pkg_config_default}"
2703 ranlib="${cross_prefix}${ranlib}"
2704 strip="${cross_prefix}${strip}"
2705
2706 sysinclude_default="${sysroot}/usr/include"
2707
2708 set_default arch cc pkg_config sysinclude target_exec target_os
2709 enabled cross_compile || host_cc_default=$cc
2710 set_default host_cc
2711
2712 if ! $pkg_config --version >/dev/null 2>&1; then
2713 warn "$pkg_config not found, library detection may fail."
2714 pkg_config=false
2715 fi
2716
2717 exesuf() {
2718 case $1 in
2719 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2720 esac
2721 }
2722
2723 EXESUF=$(exesuf $target_os)
2724 HOSTEXESUF=$(exesuf $host_os)
2725
2726 # set temporary file name
2727 : ${TMPDIR:=$TEMPDIR}
2728 : ${TMPDIR:=$TMP}
2729 : ${TMPDIR:=/tmp}
2730
2731 if ! check_cmd mktemp -u XXXXXX; then
2732 # simple replacement for missing mktemp
2733 # NOT SAFE FOR GENERAL USE
2734 mktemp(){
2735 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2736 }
2737 fi
2738
2739 tmpfile(){
2740 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2741 (set -C; exec > $tmp) 2>/dev/null ||
2742 die "Unable to create temporary file in $TMPDIR."
2743 append TMPFILES $tmp
2744 eval $1=$tmp
2745 }
2746
2747 trap 'rm -f -- $TMPFILES' EXIT
2748
2749 tmpfile TMPASM .asm
2750 tmpfile TMPC .c
2751 tmpfile TMPE $EXESUF
2752 tmpfile TMPH .h
2753 tmpfile TMPO .o
2754 tmpfile TMPS .S
2755 tmpfile TMPSH .sh
2756 tmpfile TMPV .ver
2757
2758 unset -f mktemp
2759
2760 chmod +x $TMPE
2761
2762 # make sure we can execute files in $TMPDIR
2763 cat > $TMPSH 2>> $logfile <<EOF
2764 #! /bin/sh
2765 EOF
2766 chmod +x $TMPSH >> $logfile 2>&1
2767 if ! $TMPSH >> $logfile 2>&1; then
2768 cat <<EOF
2769 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2770 variable to another directory and make sure that it is not mounted noexec.
2771 EOF
2772 die "Sanity test failed."
2773 fi
2774
2775 armasm_flags(){
2776 for flag; do
2777 case $flag in
2778 # Filter out MSVC cl.exe options from cflags that shouldn't
2779 # be passed to gas-preprocessor
2780 -M[TD]*) ;;
2781 *) echo $flag ;;
2782 esac
2783 done
2784 }
2785
2786 ccc_flags(){
2787 for flag; do
2788 case $flag in
2789 -std=c99) echo -c99 ;;
2790 -mcpu=*) echo -arch ${flag#*=} ;;
2791 -mieee) echo -ieee ;;
2792 -O*|-fast) echo $flag ;;
2793 -fno-math-errno) echo -assume nomath_errno ;;
2794 -g) echo -g3 ;;
2795 -Wall) echo -msg_enable level2 ;;
2796 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2797 -Wl,*) echo $flag ;;
2798 -f*|-W*) ;;
2799 *) echo $flag ;;
2800 esac
2801 done
2802 }
2803
2804 cparser_flags(){
2805 for flag; do
2806 case $flag in
2807 -Wno-switch) echo -Wno-switch-enum ;;
2808 -Wno-format-zero-length) ;;
2809 -Wdisabled-optimization) ;;
2810 -Wno-pointer-sign) echo -Wno-other ;;
2811 *) echo $flag ;;
2812 esac
2813 done
2814 }
2815
2816 msvc_common_flags(){
2817 for flag; do
2818 case $flag in
2819 # In addition to specifying certain flags under the compiler
2820 # specific filters, they must be specified here as well or else the
2821 # generic catch all at the bottom will print the original flag.
2822 -Wall) ;;
2823 -std=c99) ;;
2824 # Common flags
2825 -fomit-frame-pointer) ;;
2826 -g) echo -Z7 ;;
2827 -fno-math-errno) ;;
2828 -fno-common) ;;
2829 -fno-signed-zeros) ;;
2830 -fPIC) ;;
2831 -mthumb) ;;
2832 -march=*) ;;
2833 -lz) echo zlib.lib ;;
2834 -lavifil32) echo vfw32.lib ;;
2835 -lavicap32) echo vfw32.lib user32.lib ;;
2836 -l*) echo ${flag#-l}.lib ;;
2837 -L*) echo -libpath:${flag#-L} ;;
2838 *) echo $flag ;;
2839 esac
2840 done
2841 }
2842
2843 msvc_flags(){
2844 msvc_common_flags "$@"
2845 for flag; do
2846 case $flag in
2847 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2848 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2849 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2850 -wd4273 -wd4554 -wd4701 ;;
2851 esac
2852 done
2853 }
2854
2855 icl_flags(){
2856 msvc_common_flags "$@"
2857 for flag; do
2858 case $flag in
2859 # Despite what Intel's documentation says -Wall, which is supported
2860 # on Windows, does enable remarks so disable them here.
2861 -Wall) echo $flag -Qdiag-disable:remark ;;
2862 -std=c99) echo -Qstd=c99 ;;
2863 esac
2864 done
2865 }
2866
2867 pgi_flags(){
2868 for flag; do
2869 case $flag in
2870 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2871 -fomit-frame-pointer) echo -Mnoframe ;;
2872 -g) echo -gopt ;;
2873 *) echo $flag ;;
2874 esac
2875 done
2876 }
2877
2878 suncc_flags(){
2879 for flag; do
2880 case $flag in
2881 -march=*|-mcpu=*)
2882 case "${flag#*=}" in
2883 native) echo -xtarget=native ;;
2884 v9|niagara) echo -xarch=sparc ;;
2885 ultrasparc) echo -xarch=sparcvis ;;
2886 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2887 i586|pentium) echo -xchip=pentium ;;
2888 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2889 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2890 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2891 pentium4*) echo -xtarget=pentium4 ;;
2892 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2893 *-sse3) echo -xarch=sse3 ;;
2894 core2) echo -xarch=ssse3 -xchip=core2 ;;
2895 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2896 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2897 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2898 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2899 k8|opteron|athlon64|athlon-fx)
2900 echo -xarch=sse2a ;;
2901 athlon*) echo -xarch=pentium_proa ;;
2902 esac
2903 ;;
2904 -std=c99) echo -xc99 ;;
2905 -fomit-frame-pointer) echo -xregs=frameptr ;;
2906 -fPIC) echo -KPIC -xcode=pic32 ;;
2907 -W*,*) echo $flag ;;
2908 -f*-*|-W*|-mimpure-text) ;;
2909 -shared) echo -G ;;
2910 *) echo $flag ;;
2911 esac
2912 done
2913 }
2914
2915 tms470_flags(){
2916 for flag; do
2917 case $flag in
2918 -march=*|-mcpu=*)
2919 case "${flag#*=}" in
2920 armv7-a|cortex-a*) echo -mv=7a8 ;;
2921 armv7-r|cortex-r*) echo -mv=7r4 ;;
2922 armv7-m|cortex-m*) echo -mv=7m3 ;;
2923 armv6*|arm11*) echo -mv=6 ;;
2924 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2925 echo -mv=5e ;;
2926 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2927 esac
2928 ;;
2929 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2930 -mfpu=vfp) echo --float_support=vfpv2 ;;
2931 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2932 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2933 -msoft-float) echo --float_support=vfplib ;;
2934 -O[0-3]|-mf=*) echo $flag ;;
2935 -g) echo -g -mn ;;
2936 -pds=*) echo $flag ;;
2937 -D*|-I*) echo $flag ;;
2938 --gcc|--abi=*) echo $flag ;;
2939 -me) echo $flag ;;
2940 esac
2941 done
2942 }
2943
2944 probe_cc(){
2945 pfx=$1
2946 _cc=$2
2947
2948 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2949 unset _ld_o _ldflags _ld_lib _ld_path
2950 unset _depflags _DEPCMD _DEPFLAGS
2951 _flags_filter=echo
2952
2953 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2954 _type=llvm_gcc
2955 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
2956 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
2957 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2958 _cflags_speed='-O3'
2959 _cflags_size='-Os'
2960 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2961 _type=gcc
2962 gcc_version=$($_cc --version | head -n1)
2963 gcc_basever=$($_cc -dumpversion)
2964 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2965 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2966 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2967 if ! $_cc -dumpversion | grep -q '^2\.'; then
2968 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2969 fi
2970 _cflags_speed='-O3'
2971 _cflags_size='-Os'
2972 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2973 _type=icc
2974 _ident=$($_cc --version | head -n1)
2975 _depflags='-MMD'
2976 _cflags_speed='-O3'
2977 _cflags_size='-Os'
2978 _cflags_noopt='-O1'
2979 elif $_cc -v 2>&1 | grep -q xlc; then
2980 _type=xlc
2981 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2982 _cflags_speed='-O5'
2983 _cflags_size='-O5 -qcompact'
2984 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2985 _type=ccc
2986 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2987 _DEPFLAGS='-M'
2988 _cflags_speed='-fast'
2989 _cflags_size='-O1'
2990 _flags_filter=ccc_flags
2991 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2992 test -d "$sysroot" || die "No valid sysroot specified."
2993 _type=armcc
2994 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2995 armcc_conf="$PWD/armcc.conf"
2996 $_cc --arm_linux_configure \
2997 --arm_linux_config_file="$armcc_conf" \
2998 --configure_sysroot="$sysroot" \
2999 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3000 die "Error creating armcc configuration file."
3001 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3002 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3003 as_default="${cross_prefix}gcc"
3004 _depflags='-MMD'
3005 _cflags_speed='-O3'
3006 _cflags_size='-Os'
3007 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3008 _type=tms470
3009 _ident=$($_cc -version | head -n1 | tr -s ' ')
3010 _flags='--gcc --abi=eabi -me'
3011 _cc_e='-ppl -fe=$@'
3012 _cc_o='-fe=$@'
3013 _depflags='-ppa -ppd=$(@:.o=.d)'
3014 _cflags_speed='-O3 -mf=5'
3015 _cflags_size='-O3 -mf=2'
3016 _flags_filter=tms470_flags
3017 elif $_cc -v 2>&1 | grep -q clang; then
3018 _type=clang
3019 _ident=$($_cc --version 2>/dev/null | head -n1)
3020 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3021 _cflags_speed='-O3'
3022 _cflags_size='-Os'
3023 elif $_cc -V 2>&1 | grep -q Sun; then
3024 _type=suncc
3025 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3026 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3027 _DEPFLAGS='-xM1 -xc99'
3028 _ldflags='-std=c99'
3029 _cflags_speed='-O5'
3030 _cflags_size='-O5 -xspace'
3031 _flags_filter=suncc_flags
3032 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3033 _type=pathscale
3034 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3035 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3036 _cflags_speed='-O2'
3037 _cflags_size='-Os'
3038 _flags_filter='filter_out -Wdisabled-optimization'
3039 elif $_cc -v 2>&1 | grep -q Open64; then
3040 _type=open64
3041 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3042 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3043 _cflags_speed='-O2'
3044 _cflags_size='-Os'
3045 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3046 elif $_cc -V 2>&1 | grep -q Portland; then
3047 _type=pgi
3048 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3049 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3050 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3051 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3052 _cflags_noopt="-O1"
3053 _flags_filter=pgi_flags
3054 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3055 _type=armasm
3056 _ident=$($_cc | head -n1)
3057 # 4509: "This form of conditional instruction is deprecated"
3058 _flags="-nologo -ignore 4509"
3059 _flags_filter=armasm_flags
3060 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3061 _type=msvc
3062 _ident=$($_cc 2>&1 | head -n1)
3063 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3064 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3065 _cflags_speed="-O2"
3066 _cflags_size="-O1"
3067 if $_cc -nologo- 2>&1 | grep -q Linker; then
3068 _ld_o='-out:$@'
3069 else
3070 _ld_o='-Fe$@'
3071 fi
3072 _cc_o='-Fo$@'
3073 _cc_e='-P -Fi$@'
3074 _flags_filter=msvc_flags
3075 _ld_lib='lib%.a'
3076 _ld_path='-libpath:'
3077 _flags='-nologo'
3078 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS'
3079 elif $_cc 2>&1 | grep -q Intel; then
3080 _type=icl
3081 _ident=$($_cc 2>&1 | head -n1)
3082 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3083 # Not only is O3 broken on 13.x+ but it is slower on all previous
3084 # versions (tested) as well.
3085 _cflags_speed="-O2"
3086 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3087 if $_cc 2>&1 | grep -q Linker; then
3088 _ld_o='-out:$@'
3089 else
3090 _ld_o='-Fe$@'
3091 fi
3092 _cc_o='-Fo$@'
3093 _cc_e='-P'
3094 _flags_filter=icl_flags
3095 _ld_lib='lib%.a'
3096 _ld_path='-libpath:'
3097 # -Qdiag-error to make icl error when seeing certain unknown arguments
3098 _flags='-nologo -Qdiag-error:4044,10157'
3099 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3100 # with MSVC which enables it by default.
3101 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3102 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3103 _type=cparser
3104 _ident=$($_cc --version | head -n1)
3105 _depflags='-MMD'
3106 _cflags_speed='-O4'
3107 _cflags_size='-O2'
3108 _flags_filter=cparser_flags
3109 fi
3110
3111 eval ${pfx}_type=\$_type
3112 eval ${pfx}_ident=\$_ident
3113 }
3114
3115 set_ccvars(){
3116 eval ${1}_C=\${_cc_c-\${${1}_C}}
3117 eval ${1}_E=\${_cc_e-\${${1}_E}}
3118 eval ${1}_O=\${_cc_o-\${${1}_O}}
3119
3120 if [ -n "$_depflags" ]; then
3121 eval ${1}_DEPFLAGS=\$_depflags
3122 else
3123 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3124 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3125 eval DEP${1}FLAGS=\$_flags
3126 fi
3127 }
3128
3129 probe_cc cc "$cc"
3130 cflags_filter=$_flags_filter
3131 cflags_speed=$_cflags_speed
3132 cflags_size=$_cflags_size
3133 cflags_noopt=$_cflags_noopt
3134 add_cflags $_flags $_cflags
3135 cc_ldflags=$_ldflags
3136 set_ccvars CC
3137
3138 probe_cc hostcc "$host_cc"
3139 host_cflags_filter=$_flags_filter
3140 add_host_cflags $_flags $_cflags
3141 set_ccvars HOSTCC
3142
3143 test -n "$cc_type" && enable $cc_type ||
3144 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3145
3146 : ${as_default:=$cc}
3147 : ${dep_cc_default:=$cc}
3148 : ${ld_default:=$cc}
3149 : ${host_ld_default:=$host_cc}
3150 set_default ar as dep_cc ld host_ld
3151
3152 probe_cc as "$as"
3153 asflags_filter=$_flags_filter
3154 add_asflags $_flags $_cflags
3155 set_ccvars AS
3156
3157 probe_cc ld "$ld"
3158 ldflags_filter=$_flags_filter
3159 add_ldflags $_flags $_ldflags
3160 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3161 LD_O=${_ld_o-$LD_O}
3162 LD_LIB=${_ld_lib-$LD_LIB}
3163 LD_PATH=${_ld_path-$LD_PATH}
3164
3165 probe_cc hostld "$host_ld"
3166 host_ldflags_filter=$_flags_filter
3167 add_host_ldflags $_flags $_ldflags
3168 HOSTLD_O=${_ld_o-$HOSTLD_O}
3169
3170 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3171 probe_cc depcc "$dep_cc"
3172 CCDEP=${_DEPCMD:-$DEPCMD}
3173 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3174 DEPCCFLAGS=$_flags
3175 fi
3176
3177 if $ar 2>&1 | grep -q Microsoft; then
3178 arflags="-nologo"
3179 ar_o='-out:$@'
3180 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3181 arflags="rq"
3182 ar_o='$@'
3183 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3184 arflags='-Xany -r -c'
3185 ar_o='$@'
3186 else
3187 arflags="rc"
3188 ar_o='$@'
3189 fi
3190
3191 add_cflags $extra_cflags
3192 add_asflags $extra_cflags
3193
3194 if test -n "$sysroot"; then
3195 case "$cc_type" in
3196 gcc|llvm_gcc|clang)
3197 add_cppflags --sysroot="$sysroot"
3198 add_ldflags --sysroot="$sysroot"
3199 ;;
3200 tms470)
3201 add_cppflags -I"$sysinclude"
3202 add_ldflags --sysroot="$sysroot"
3203 ;;
3204 esac
3205 fi
3206
3207 if test "$cpu" = host; then
3208 enabled cross_compile &&
3209 die "--cpu=host makes no sense when cross-compiling."
3210
3211 case "$cc_type" in
3212 gcc|llvm_gcc)
3213 check_native(){
3214 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3215 sed -n "/cc1.*$1=/{
3216 s/.*$1=\\([^ ]*\\).*/\\1/
3217 p
3218 q
3219 }" $TMPE
3220 }
3221 cpu=$(check_native -march || check_native -mcpu)
3222 ;;
3223 esac
3224
3225 test "${cpu:-host}" = host &&
3226 die "--cpu=host not supported with compiler $cc"
3227 fi
3228
3229 # Deal with common $arch aliases
3230 case "$arch" in
3231 aarch64|arm64)
3232 arch="aarch64"
3233 ;;
3234 arm*)
3235 arch="arm"
3236 ;;
3237 mips*|IP*)
3238 arch="mips"
3239 ;;
3240 parisc*|hppa*)
3241 arch="parisc"
3242 ;;
3243 "Power Macintosh"|ppc*|powerpc*)
3244 arch="ppc"
3245 ;;
3246 s390|s390x)
3247 arch="s390"
3248 ;;
3249 sh4|sh)
3250 arch="sh4"
3251 ;;
3252 sun4u|sparc*)
3253 arch="sparc"
3254 ;;
3255 tilegx|tile-gx)
3256 arch="tilegx"
3257 ;;
3258 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3259 arch="x86"
3260 ;;
3261 esac
3262
3263 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3264 enable $arch
3265
3266 # Add processor-specific flags
3267 if enabled aarch64; then
3268
3269 case $cpu in
3270 armv*)
3271 cpuflags="-march=$cpu"
3272 ;;
3273 *)
3274 cpuflags="-mcpu=$cpu"
3275 ;;
3276 esac
3277
3278 elif enabled alpha; then
3279
3280 cpuflags="-mcpu=$cpu"
3281
3282 elif enabled arm; then
3283
3284 check_arm_arch() {
3285 check_cpp_condition stddef.h \
3286 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3287 $cpuflags
3288 }
3289
3290 probe_arm_arch() {
3291 if check_arm_arch 4; then echo armv4;
3292 elif check_arm_arch 4T; then echo armv4t;
3293 elif check_arm_arch 5; then echo armv5;
3294 elif check_arm_arch 5E; then echo armv5e;
3295 elif check_arm_arch 5T; then echo armv5t;
3296 elif check_arm_arch 5TE; then echo armv5te;
3297 elif check_arm_arch 5TEJ; then echo armv5te;
3298 elif check_arm_arch 6; then echo armv6;
3299 elif check_arm_arch 6J; then echo armv6j;
3300 elif check_arm_arch 6K; then echo armv6k;
3301 elif check_arm_arch 6Z; then echo armv6z;
3302 elif check_arm_arch 6ZK; then echo armv6zk;
3303 elif check_arm_arch 6T2; then echo armv6t2;
3304 elif check_arm_arch 7; then echo armv7;
3305 elif check_arm_arch 7A 7_A; then echo armv7-a;
3306 elif check_arm_arch 7S; then echo armv7-a;
3307 elif check_arm_arch 7R 7_R; then echo armv7-r;
3308 elif check_arm_arch 7M 7_M; then echo armv7-m;
3309 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3310 elif check_arm_arch 8A 8_A; then echo armv8-a;
3311 fi
3312 }
3313
3314 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3315
3316 case $cpu in
3317 armv*)
3318 cpuflags="-march=$cpu"
3319 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3320 ;;
3321 *)
3322 cpuflags="-mcpu=$cpu"
3323 case $cpu in
3324 cortex-a*) subarch=armv7a ;;
3325 cortex-r*) subarch=armv7r ;;
3326 cortex-m*) enable thumb; subarch=armv7m ;;
3327 arm11*) subarch=armv6 ;;
3328 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3329 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3330 *) subarch=$(probe_arm_arch) ;;
3331 esac
3332 ;;
3333 esac
3334
3335 case "$subarch" in
3336 armv5t*) enable fast_clz ;;
3337 armv[6-8]*) enable fast_clz fast_unaligned ;;
3338 esac
3339
3340 elif enabled avr32; then
3341
3342 case $cpu in
3343 ap7[02]0[0-2])
3344 subarch="avr32_ap"
3345 cpuflags="-mpart=$cpu"
3346 ;;
3347 ap)
3348 subarch="avr32_ap"
3349 cpuflags="-march=$cpu"
3350 ;;
3351 uc3[ab]*)
3352 subarch="avr32_uc"
3353 cpuflags="-mcpu=$cpu"
3354 ;;
3355 uc)
3356 subarch="avr32_uc"
3357 cpuflags="-march=$cpu"
3358 ;;
3359 esac
3360
3361 elif enabled bfin; then
3362
3363 cpuflags="-mcpu=$cpu"
3364
3365 elif enabled mips; then
3366
3367 cpuflags="-march=$cpu"
3368
3369 elif enabled ppc; then
3370
3371 disable ldbrx
3372
3373 case $(tolower $cpu) in
3374 601|ppc601|powerpc601)
3375 cpuflags="-mcpu=601"
3376 disable altivec
3377 ;;
3378 603*|ppc603*|powerpc603*)
3379 cpuflags="-mcpu=603"
3380 disable altivec
3381 ;;
3382 604*|ppc604*|powerpc604*)
3383 cpuflags="-mcpu=604"
3384 disable altivec
3385 ;;
3386 g3|75*|ppc75*|powerpc75*)
3387 cpuflags="-mcpu=750"
3388 disable altivec
3389 ;;
3390 g4|745*|ppc745*|powerpc745*)
3391 cpuflags="-mcpu=7450"
3392 disable vsx
3393 ;;
3394 74*|ppc74*|powerpc74*)
3395 cpuflags="-mcpu=7400"
3396 disable vsx
3397 ;;
3398 g5|970|ppc970|powerpc970)
3399 cpuflags="-mcpu=970"
3400 disable vsx
3401 ;;
3402 power[3-6]*)
3403 cpuflags="-mcpu=$cpu"
3404 disable vsx
3405 ;;
3406 power[7-8]*)
3407 cpuflags="-mcpu=$cpu"
3408 enable ldbrx
3409 ;;
3410 cell)
3411 cpuflags="-mcpu=cell"
3412 enable ldbrx
3413 disable vsx
3414 ;;
3415 e500mc)
3416 cpuflags="-mcpu=e500mc"
3417 disable altivec
3418 ;;
3419 e500v2)
3420 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3421 disable altivec
3422 disable dcbzl
3423 ;;
3424 e500)
3425 cpuflags="-mcpu=8540 -mhard-float"
3426 disable altivec
3427 disable dcbzl
3428 ;;
3429 esac
3430
3431 elif enabled sparc; then
3432
3433 case $cpu in
3434 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3435 cpuflags="-mcpu=$cpu"
3436 ;;
3437 ultrasparc*|niagara[234])
3438 cpuflags="-mcpu=$cpu"
3439 ;;
3440 esac
3441
3442 elif enabled x86; then
3443
3444 case $cpu in
3445 i[345]86|pentium)
3446 cpuflags="-march=$cpu"
3447 disable i686
3448 disable mmx
3449 ;;
3450 # targets that do NOT support nopl and conditional mov (cmov)
3451 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3452 cpuflags="-march=$cpu"
3453 disable i686
3454 ;;
3455 # targets that do support nopl and conditional mov (cmov)
3456 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3457 cpuflags="-march=$cpu"
3458 enable i686
3459 enable fast_cmov
3460 ;;
3461 # targets that do support conditional mov but on which it's slow
3462 pentium4|pentium4m|prescott|nocona)
3463 cpuflags="-march=$cpu"
3464 enable i686
3465 disable fast_cmov
3466 ;;
3467 esac
3468
3469 fi
3470
3471 if [ "$cpu" != generic ]; then
3472 add_cflags $cpuflags
3473 add_asflags $cpuflags
3474 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3475 fi
3476
3477 # compiler sanity check
3478 check_exec <<EOF
3479 int main(void){ return 0; }
3480 EOF
3481 if test "$?" != 0; then
3482 echo "$cc is unable to create an executable file."
3483 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3484 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3485 echo "Only do this if you know what cross compiling means."
3486 fi
3487 die "C compiler test failed."
3488 fi
3489
3490 add_cppflags -D_ISOC99_SOURCE
3491 check_cflags -std=c99
3492 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3493 #include <stdlib.h>
3494 EOF
3495 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3496 #include <stdlib.h>
3497 EOF
3498
3499 add_host_cppflags -D_ISOC99_SOURCE
3500 check_host_cflags -std=c99
3501 check_host_cflags -Wall
3502 check_host_cflags -O3
3503
3504 check_64bit(){
3505 arch32=$1
3506 arch64=$2
3507 expr=$3
3508 check_code cc "" "int test[2*($expr) - 1]" &&
3509 subarch=$arch64 || subarch=$arch32
3510 }
3511
3512 case "$arch" in
3513 aarch64|alpha|ia64)
3514 spic=$shared
3515 ;;
3516 mips)
3517 check_64bit mips mips64 '_MIPS_SIM > 1'
3518 spic=$shared
3519 ;;
3520 parisc)
3521 check_64bit parisc parisc64 'sizeof(void *) > 4'
3522 spic=$shared
3523 ;;
3524 ppc)
3525 check_64bit ppc ppc64 'sizeof(void *) > 4'
3526 spic=$shared
3527 ;;
3528 s390)
3529 check_64bit s390 s390x 'sizeof(void *) > 4'
3530 spic=$shared
3531 ;;
3532 sparc)
3533 check_64bit sparc sparc64 'sizeof(void *) > 4'
3534 spic=$shared
3535 ;;
3536 x86)
3537 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3538 if test "$subarch" = "x86_64"; then
3539 spic=$shared
3540 fi
3541 ;;
3542 esac
3543
3544 enable $subarch
3545 enabled spic && enable_weak pic
3546
3547 # OS specific
3548 case $target_os in
3549 aix)
3550 SHFLAGS=-shared
3551 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3552 enabled shared && add_ldflags -Wl,-brtl
3553 ;;
3554 android)
3555 disable symver
3556 enable section_data_rel_ro
3557 SLIB_INSTALL_NAME='$(SLIBNAME)'
3558 SLIB_INSTALL_LINKS=
3559 # soname not set on purpose
3560 SHFLAGS=-shared
3561 ;;
3562 haiku)
3563 prefix_default="/boot/common"
3564 network_extralibs="-lnetwork"
3565 host_libs=
3566 ;;
3567 sunos)
3568 SHFLAGS='-shared -Wl,-h,$$(@F)'
3569 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3570 network_extralibs="-lsocket -lnsl"
3571 # When using suncc to build, the Solaris linker will mark
3572 # an executable with each instruction set encountered by
3573 # the Solaris assembler. As our libraries contain their own
3574 # guards for processor-specific code, instead suppress
3575 # generation of the HWCAPS ELF section on Solaris x86 only.
3576 enabled_all suncc x86 &&
3577 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3578 add_ldflags -Wl,-M,mapfile
3579 nm_default='nm -P -g'
3580 ;;
3581 netbsd)
3582 disable symver
3583 oss_indev_extralibs="-lossaudio"
3584 oss_outdev_extralibs="-lossaudio"
3585 ;;
3586 openbsd|bitrig)
3587 disable symver
3588 SHFLAGS='-shared'
3589 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3590 SLIB_INSTALL_LINKS=
3591 oss_indev_extralibs="-lossaudio"
3592 oss_outdev_extralibs="-lossaudio"
3593 ;;
3594 dragonfly)
3595 disable symver
3596 ;;
3597 freebsd)
3598 ;;
3599 bsd/os)
3600 add_extralibs -lpoll -lgnugetopt
3601 ;;
3602 darwin)
3603 enabled ppc && add_asflags -force_cpusubtype_ALL
3604 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3605 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3606 add_ldflags -Wl,-dynamic,-search_paths_first
3607 SLIBSUF=".dylib"
3608 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3609 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3610 objformat="macho"
3611 enabled x86_64 && objformat="macho64"
3612 enabled_any pic shared ||
3613 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3614 ;;
3615 mingw32*)
3616 if test $target_os = "mingw32ce"; then
3617 disable network
3618 else
3619 target_os=mingw32
3620 fi
3621 LIBTARGET=i386
3622 if enabled x86_64; then
3623 LIBTARGET="i386:x86-64"
3624 elif enabled arm; then
3625 LIBTARGET=arm-wince
3626 fi
3627 check_ldflags -Wl,--nxcompat
3628 check_ldflags -Wl,--dynamicbase
3629 shlibdir_default="$bindir_default"
3630 SLIBPREF=""
3631 SLIBSUF=".dll"
3632 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3633 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3634 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3635 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3636 SLIB_INSTALL_LINKS=
3637 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3638 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3639 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3640 objformat="win32"
3641 dlltool="${cross_prefix}dlltool"
3642 ranlib=:
3643 enable dos_paths
3644 ;;
3645 win32|win64)
3646 disable symver
3647 if enabled shared; then
3648 # Link to the import library instead of the normal static library
3649 # for shared libs.
3650 LD_LIB='%.lib'
3651 # Cannot build both shared and static libs with MSVC or icl.
3652 disable static
3653 fi
3654 shlibdir_default="$bindir_default"
3655 SLIBPREF=""
3656 SLIBSUF=".dll"
3657 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3658 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3659 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3660 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3661 SLIB_INSTALL_LINKS=
3662 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3663 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3664 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3665 objformat="win32"
3666 ranlib=:
3667 enable dos_paths
3668 ;;
3669 cygwin*)
3670 target_os=cygwin
3671 shlibdir_default="$bindir_default"
3672 SLIBPREF="cyg"
3673 SLIBSUF=".dll"
3674 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3675 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3676 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3677 SLIB_INSTALL_LINKS=
3678 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3679 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3680 objformat="win32"
3681 enable dos_paths
3682 ;;
3683 *-dos|freedos|opendos)
3684 network_extralibs="-lsocket"
3685 objformat="coff"
3686 enable dos_paths
3687 add_cppflags -U__STRICT_ANSI__
3688 ;;
3689 linux)
3690 enable dv1394
3691 enable section_data_rel_ro
3692 ;;
3693 irix*)
3694 target_os=irix
3695 ranlib="echo ignoring ranlib"
3696 ;;
3697 os/2*)
3698 ln_s="cp -f"
3699 objformat="aout"
3700 add_cppflags -D_GNU_SOURCE
3701 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3702 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3703 LIBSUF="_s.a"
3704 SLIBPREF=""
3705 SLIBSUF=".dll"
3706 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3707 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3708 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3709 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3710 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3711 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3712 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3713 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3714 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3715 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3716 enable dos_paths
3717 ;;
3718 gnu/kfreebsd)
3719 add_cppflags -D_BSD_SOURCE
3720 ;;
3721 gnu)
3722 ;;
3723 qnx)
3724 add_cppflags -D_QNX_SOURCE
3725 network_extralibs="-lsocket"
3726 ;;
3727 symbian)
3728 SLIBSUF=".dll"
3729 enable dos_paths
3730 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3731 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3732 add_ldflags -Wl,--target1-abs,--no-undefined \
3733 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3734 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3735 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3736 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3737 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3738 ;;
3739 osf1)
3740 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3741 ;;
3742 minix)
3743 ;;
3744 plan9)
3745 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3746 -D_REENTRANT_SOURCE \
3747 -D_RESEARCH_SOURCE \
3748 -DFD_SETSIZE=96 \
3749 -DHAVE_SOCK_OPTS
3750 add_compat strtod.o strtod=avpriv_strtod
3751 network_extralibs='-lbsd'
3752 exeobjs=compat/plan9/main.o
3753 cp_f='cp'
3754 ;;
3755 none)
3756 ;;
3757 *)
3758 die "Unknown OS '$target_os'."
3759 ;;
3760 esac
3761
3762 # determine libc flavour
3763
3764 probe_libc(){
3765 pfx=$1
3766 pfx_no_=${pfx%_}
3767 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3768 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3769 eval ${pfx}libc_type=uclibc
3770 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3771 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3772 eval ${pfx}libc_type=glibc
3773 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3774 # MinGW headers can be installed on Cygwin, so check for newlib first.
3775 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3776 eval ${pfx}libc_type=newlib
3777 add_${pfx}cppflags -U__STRICT_ANSI__
3778 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3779 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3780 eval ${pfx}libc_type=mingw64
3781 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3782 eval test \$${pfx_no_}cc_type = "gcc" &&
3783 add_${pfx}cppflags -D__printf__=__gnu_printf__
3784 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3785 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3786 eval ${pfx}libc_type=mingw32
3787 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3788 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3789 die "ERROR: MinGW32 runtime version must be >= 3.15."
3790 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3791 eval test \$${pfx_no_}cc_type = "gcc" &&
3792 add_${pfx}cppflags -D__printf__=__gnu_printf__
3793 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3794 eval ${pfx}libc_type=msvcrt
3795 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3796 if [ "$pfx" = host_ ]; then
3797 add_host_cppflags -Dsnprintf=_snprintf
3798 else
3799 add_compat strtod.o strtod=avpriv_strtod
3800 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3801 _snprintf=avpriv_snprintf \
3802 vsnprintf=avpriv_vsnprintf
3803 fi
3804 fi
3805 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3806 # 0x601 by default unless something else is set by the user.
3807 # This can easily lead to us detecting functions only present
3808 # in such new versions and producing binaries requiring windows 7.0.
3809 # Therefore explicitly set the default to XP unless the user has
3810 # set something else on the command line.
3811 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3812 # family. For these cases, configure is free to use any functions
3813 # found in the SDK headers by default. (Alternatively, we could force
3814 # _WIN32_WINNT to 0x0602 in that case.)
3815 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3816 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3817 #ifdef WINAPI_FAMILY
3818 #include <winapifamily.h>
3819 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3820 #error not desktop
3821 #endif
3822 #endif
3823 EOF
3824 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3825 eval ${pfx}libc_type=klibc
3826 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3827 eval ${pfx}libc_type=bionic
3828 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3829 eval ${pfx}libc_type=solaris
3830 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3831 else
3832 eval ${pfx}libc_type=default
3833 add_${pfx}cppflags -D_DEFAULT_SOURCE
3834 fi
3835 }
3836
3837 probe_libc
3838 test -n "$libc_type" && enable libc_$libc_type
3839 probe_libc host_
3840 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3841
3842 case $libc_type in
3843 bionic)
3844 add_compat strtod.o strtod=avpriv_strtod
3845 ;;
3846 esac
3847
3848 # hacks for compiler/libc/os combinations
3849
3850 if enabled_all tms470 libc_glibc; then
3851 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3852 add_cppflags -D__USER_LABEL_PREFIX__=
3853 add_cppflags -D__builtin_memset=memset
3854 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3855 add_cflags -pds=48 # incompatible redefinition of macro
3856 fi
3857
3858 if enabled_all ccc libc_glibc; then
3859 add_ldflags -Wl,-z,now # calls to libots crash without this
3860 fi
3861
3862 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3863 add_cppflags '-I\$(SRC_PATH)/compat/float'
3864
3865 esc(){
3866 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3867 }
3868
3869 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3870
3871 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3872
3873 set_default $PATHS_LIST
3874 set_default nm
3875
3876 # we need to build at least one lib type
3877 if ! enabled_any static shared; then
3878 cat <<EOF
3879 At least one library type must be built.
3880 Specify --enable-static to build the static libraries or --enable-shared to
3881 build the shared libraries as well. To only build the shared libraries specify
3882 --disable-static in addition to --enable-shared.
3883 EOF
3884 exit 1;
3885 fi
3886
3887 die_license_disabled() {
3888 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3889 }
3890
3891 die_license_disabled gpl libcdio
3892 die_license_disabled gpl libx264
3893 die_license_disabled gpl libx265
3894 die_license_disabled gpl libxavs
3895 die_license_disabled gpl libxvid
3896 die_license_disabled gpl x11grab
3897
3898 die_license_disabled nonfree libfaac
3899 die_license_disabled nonfree libfdk_aac
3900 die_license_disabled nonfree nvenc
3901 die_license_disabled nonfree openssl
3902
3903 die_license_disabled version3 libopencore_amrnb
3904 die_license_disabled version3 libopencore_amrwb
3905 die_license_disabled version3 libvo_aacenc
3906 die_license_disabled version3 libvo_amrwbenc
3907
3908 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3909
3910 disabled optimizations || check_cflags -fomit-frame-pointer
3911
3912 enable_weak_pic() {
3913 disabled pic && return
3914 enable pic
3915 add_cppflags -DPIC
3916 case "$target_os" in
3917 mingw*|cygwin*)
3918 ;;
3919 *)
3920 add_cflags -fPIC
3921 ;;
3922 esac
3923 add_asflags -fPIC
3924 }
3925
3926 enabled pic && enable_weak_pic
3927
3928 check_cc <<EOF || die "Symbol mangling check failed."
3929 int ff_extern;
3930 EOF
3931 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3932 extern_prefix=${sym%%ff_extern*}
3933
3934 check_cc <<EOF && enable_weak inline_asm
3935 void foo(void) { __asm__ volatile ("" ::); }
3936 EOF
3937
3938 _restrict=
3939 for restrict_keyword in restrict __restrict__ __restrict; do
3940 check_cc <<EOF && _restrict=$restrict_keyword && break
3941 void foo(char * $restrict_keyword p);
3942 EOF
3943 done
3944
3945 check_cc <<EOF && enable pragma_deprecated
3946 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3947 EOF
3948
3949 check_cc <<EOF && enable attribute_packed
3950 struct { int x; } __attribute__((packed)) x;
3951 EOF
3952
3953 check_cc <<EOF && enable attribute_may_alias
3954 union { int x; } __attribute__((may_alias)) x;
3955 EOF
3956
3957 check_cc <<EOF || die "endian test failed"
3958 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3959 EOF
3960 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3961
3962 check_gas() {
3963 log "check_gas using '$as' as AS"
3964 # :vararg is used on aarch64, arm and ppc altivec
3965 check_as <<EOF || return 1
3966 .macro m n, y:vararg=0
3967 \n: .int \y
3968 .endm
3969 m x
3970 EOF
3971 # .altmacro is only used in arm asm
3972 ! enabled arm || check_as <<EOF || return 1
3973 .altmacro
3974 EOF
3975 enable gnu_as
3976 return 0
3977 }
3978
3979 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3980 nogas=:
3981 enabled_any arm aarch64 && nogas=die
3982 enabled_all ppc altivec && nogas=warn
3983 as_noop=-v
3984
3985 case $as_type in
3986 arm*) gaspp_as_type=armasm; as_noop=-h ;;
3987 gcc) gaspp_as_type=gas ;;
3988 *) gaspp_as_type=$as_type ;;
3989 esac
3990
3991 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3992
3993 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3994 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3995
3996 if ! check_gas ; then
3997 as=${gas:=$as}
3998 check_gas || \
3999 $nogas "GNU assembler not found, install/update gas-preprocessor"
4000 fi
4001
4002 check_as <<EOF && enable as_func
4003 .func test
4004 .endfunc
4005 EOF
4006 fi
4007
4008 check_inline_asm inline_asm_labels '"1:\n"'
4009
4010 if enabled aarch64; then
4011 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4012 # internal assembler in clang 3.3 does not support this instruction
4013 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4014 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4015
4016 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4017
4018 elif enabled alpha; then
4019
4020 check_cflags -mieee
4021
4022 elif enabled arm; then
4023
4024 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4025 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4026 enabled thumb && check_cflags -mthumb || check_cflags -marm
4027
4028 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4029 enable vfp_args
4030 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4031 enable vfp_args
4032 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4033 case "${cross_prefix:-$cc}" in
4034 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4035 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4036 __asm__ (".eabi_attribute 28, 1");
4037 int main(void) { return 0; }
4038 EOF
4039 esac
4040 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4041 fi
4042
4043 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4044 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4045 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4046 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4047 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4048 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4049
4050 [ $target_os = linux ] || [ $target_os = android ] ||
4051 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4052 $ARCH_EXT_LIST_ARM
4053
4054 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4055
4056 check_as <<EOF && enable as_dn_directive
4057 ra .dn d0.i16
4058 .unreq ra
4059 EOF
4060
4061 # llvm's integrated assembler supports .object_arch from llvm 3.5
4062 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4063 .object_arch armv4
4064 EOF
4065
4066 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4067
4068 elif enabled mips; then
4069
4070 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4071
4072 # make sure that only an instruction set is enabled
4073 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4074
4075 if enabled mips64; then
4076 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4077 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4078 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4079 else
4080 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4081 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4082 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4083 fi
4084
4085 elif enabled parisc; then
4086
4087 if enabled gcc; then
4088 case $($cc -dumpversion) in
4089 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4090 esac
4091 fi
4092
4093 elif enabled ppc; then
4094
4095 enable local_aligned_8 local_aligned_16
4096
4097 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4098 check_inline_asm ibm_asm '"add 0, 0, 0"'
4099 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4100 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4101
4102 # AltiVec flags: The FSF version of GCC differs from the Apple version
4103 if enabled altivec; then
4104 check_cflags -maltivec -mabi=altivec &&
4105 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4106 check_cflags -faltivec
4107
4108 # check if our compiler supports Motorola AltiVec C API
4109 check_cc <<EOF || disable altivec
4110 $inc_altivec_h
4111 int main(void) {
4112 vector signed int v1 = (vector signed int) { 0 };
4113 vector signed int v2 = (vector signed int) { 1 };
4114 v1 = vec_add(v1, v2);
4115 return 0;
4116 }
4117 EOF
4118
4119 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4120 fi
4121
4122 if enabled vsx; then
4123 check_cflags -mvsx &&
4124 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4125 fi
4126
4127 if enabled power8; then
4128 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4129 fi
4130
4131 elif enabled x86; then
4132
4133 check_builtin rdtsc intrin.h "__rdtsc()"
4134 check_builtin mm_empty mmintrin.h "_mm_empty()"
4135
4136 enable local_aligned_8 local_aligned_16
4137
4138 # check whether EBP is available on x86
4139 # As 'i' is stored on the stack, this program will crash
4140 # if the base pointer is used to access it because the
4141 # base pointer is cleared in the inline assembly code.
4142 check_exec_crash <<EOF && enable ebp_available
4143 volatile int i=0;
4144 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4145 return i;
4146 EOF
4147
4148 # check whether EBX is available on x86
4149 check_inline_asm ebx_available '""::"b"(0)' &&
4150 check_inline_asm ebx_available '"":::"%ebx"'
4151
4152 # check whether xmm clobbers are supported
4153 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4154
4155 # check whether binutils is new enough to compile SSSE3/MMXEXT
4156 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4157 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4158
4159 if ! disabled_any asm mmx yasm; then
4160 if check_cmd $yasmexe --version; then
4161 enabled x86_64 && yasm_extra="-m amd64"
4162 yasm_debug="-g dwarf2"
4163 elif check_cmd nasm -v; then
4164 yasmexe=nasm
4165 yasm_debug="-g -F dwarf"
4166 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4167 fi
4168
4169 YASMFLAGS="-f $objformat $yasm_extra"
4170 enabled pic && append YASMFLAGS "-DPIC"
4171 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4172 case "$objformat" in
4173 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4174 esac
4175
4176 check_yasm "movbe ecx, [5]" && enable yasm ||
4177 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4178 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4179 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4180 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4181 check_yasm "CPU amdnop" || disable cpunop
4182 fi
4183
4184 case "$cpu" in
4185 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4186 disable fast_clz
4187 ;;
4188 esac
4189
4190 fi
4191
4192 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4193
4194 check_ldflags -Wl,--as-needed
4195
4196 if check_func dlopen; then
4197 ldl=
4198 elif check_func dlopen -ldl; then
4199 ldl=-ldl
4200 fi
4201
4202 if ! disabled network; then
4203 check_func getaddrinfo $network_extralibs
4204 check_func getservbyport $network_extralibs
4205 check_func inet_aton $network_extralibs
4206
4207 check_type netdb.h "struct addrinfo"
4208 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4209 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4210 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4211 check_type poll.h "struct pollfd"
4212 check_type netinet/sctp.h "struct sctp_event_subscribe"
4213 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4214 check_type netinet/in.h "struct sockaddr_in6"
4215 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4216 check_type "sys/types.h sys/socket.h" socklen_t
4217
4218 # Prefer arpa/inet.h over winsock2
4219 if check_header arpa/inet.h ; then
4220 check_func closesocket
4221 elif check_header winsock2.h ; then
4222 check_func_headers winsock2.h closesocket -lws2 &&
4223 network_extralibs="-lws2" ||
4224 { check_func_headers winsock2.h closesocket -lws2_32 &&
4225 network_extralibs="-lws2_32"; } || disable winsock2_h network
4226 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4227
4228 check_type ws2tcpip.h socklen_t
4229 check_type ws2tcpip.h "struct addrinfo"
4230 check_type ws2tcpip.h "struct group_source_req"
4231 check_type ws2tcpip.h "struct ip_mreq_source"
4232 check_type ws2tcpip.h "struct ipv6_mreq"
4233 check_type winsock2.h "struct pollfd"
4234 check_struct winsock2.h "struct sockaddr" sa_len
4235 check_type ws2tcpip.h "struct sockaddr_in6"
4236 check_type ws2tcpip.h "struct sockaddr_storage"
4237 else
4238 disable network
4239 fi
4240 fi
4241
4242 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4243 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4244 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4245 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4246
4247 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4248 check_func ${malloc_prefix}memalign && enable memalign
4249 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4250
4251 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4252 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4253
4254 check_func fcntl
4255 check_func fork
4256 check_func gethrtime
4257 check_func getopt
4258 check_func getrusage
4259 check_func gettimeofday
4260 check_func gmtime_r
4261 check_func isatty
4262 check_func localtime_r
4263 check_func mach_absolute_time
4264 check_func mkstemp
4265 check_func mmap
4266 check_func mprotect
4267 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4268 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4269 check_func sched_getaffinity
4270 check_func setrlimit
4271 check_func strerror_r
4272 check_func sysconf
4273 check_func sysctl
4274 check_func usleep
4275
4276 check_func_headers io.h setmode
4277 check_func_headers stdlib.h getenv
4278
4279 check_func_headers windows.h CoTaskMemFree -lole32
4280 check_func_headers windows.h GetProcessAffinityMask
4281 check_func_headers windows.h GetProcessTimes
4282 check_func_headers windows.h GetSystemTimeAsFileTime
4283 check_func_headers windows.h LoadLibrary
4284 check_func_headers windows.h MapViewOfFile
4285 check_func_headers windows.h SetConsoleTextAttribute
4286 check_func_headers windows.h Sleep
4287 check_func_headers windows.h VirtualAlloc
4288 check_struct windows.h "CONDITION_VARIABLE" Ptr
4289
4290 check_header direct.h
4291 check_header dlfcn.h
4292 check_header d3d11.h
4293 check_header dxva.h
4294 check_header dxva2api.h
4295 check_header io.h
4296 check_header mach/mach_time.h
4297 check_header malloc.h
4298 check_header poll.h
4299 check_header sys/mman.h
4300 check_header sys/param.h
4301 check_header sys/resource.h
4302 check_header sys/select.h
4303 check_header sys/time.h
4304 check_header sys/un.h
4305 check_header unistd.h
4306 check_header valgrind/valgrind.h
4307 check_header vdpau/vdpau.h
4308 check_header vdpau/vdpau_x11.h
4309 check_header VideoDecodeAcceleration/VDADecoder.h
4310 check_header windows.h
4311 check_header X11/extensions/XvMClib.h
4312
4313 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4314 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4315 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4316
4317 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4318
4319 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4320 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4321 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4322
4323 if ! disabled w32threads && ! enabled pthreads; then
4324 check_func_headers "windows.h process.h" _beginthreadex &&
4325 enable w32threads || disable w32threads
4326 fi
4327
4328 # check for some common methods of building with pthread support
4329 # do this before the optional library checks as some of them require pthreads
4330 if ! disabled pthreads && ! enabled w32threads; then
4331 enable pthreads
4332 if check_func pthread_join -pthread; then
4333 add_cflags -pthread
4334 add_extralibs -pthread
4335 elif check_func pthread_join -pthreads; then
4336 add_cflags -pthreads
4337 add_extralibs -pthreads
4338 elif check_func pthread_join -lpthreadGC2; then
4339 add_extralibs -lpthreadGC2
4340 elif check_lib pthread.h pthread_join -lpthread; then
4341 :
4342 elif ! check_func pthread_join; then
4343 disable pthreads
4344 fi
4345 fi
4346
4347 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4348 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4349
4350 check_lib math.h sin -lm && LIBM="-lm"
4351 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4352
4353 atan2f_args=2
4354 ldexpf_args=2
4355 powf_args=2
4356
4357 for func in $MATH_FUNCS; do
4358 eval check_mathfunc $func \${${func}_args:-1}
4359 done
4360
4361 # these are off by default, so fail if requested and not available
4362 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4363 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4364 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4365 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4366 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4367 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4368 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4369 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4370 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4371 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4372 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4373 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4374 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4375 done || die "ERROR: libgsm not found"; }
4376 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4377 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4378 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4379 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4380 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4381 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4382 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4383 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4384 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4385 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4386 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4387 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4388 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4389 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4390 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4391 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4392 enabled libtwolame