c271994f93a5f98b56a8ba472e2d0dff48495fe1
[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
90 Licensing options:
91 --enable-gpl allow use of GPL code, the resulting libs
92 and binaries will be under GPL [no]
93 --enable-version3 upgrade (L)GPL to version 3 [no]
94 --enable-nonfree allow use of nonfree code, the resulting libs
95 and binaries will be unredistributable [no]
96
97 Configuration options:
98 --disable-static do not build static libraries [no]
99 --enable-shared build shared libraries [no]
100 --enable-small optimize for size instead of speed
101 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
102 --enable-gray enable full grayscale support (slower color)
103 --disable-swscale-alpha disable alpha channel support in swscale
104 --disable-all disable building components, libraries and programs
105
106 Program options:
107 --disable-programs do not build command line programs
108 --disable-avconv disable avconv build
109 --disable-avplay disable avplay build
110 --disable-avprobe disable avprobe build
111 --disable-avserver deprecated, does nothing
112
113 Component options:
114 --disable-doc do not build documentation
115 --disable-avdevice disable libavdevice build
116 --disable-avcodec disable libavcodec build
117 --disable-avformat disable libavformat build
118 --disable-avutil disable libavutil build
119 --disable-swscale disable libswscale build
120 --disable-avfilter disable video filter support [no]
121 --disable-avresample disable libavresample build [no]
122 --disable-pthreads disable pthreads [auto]
123 --disable-w32threads disable Win32 threads [auto]
124 --disable-network disable network support [no]
125 --disable-dct disable DCT code
126 --disable-error-resilience disable error resilience code
127 --disable-lsp disable LSP code
128 --disable-lzo disable LZO decoder code
129 --disable-mdct disable MDCT code
130 --disable-rdft disable RDFT code
131 --disable-fft disable FFT code
132
133 Hardware accelerators:
134 --enable-dxva2 enable DXVA2 code
135 --enable-vaapi enable VAAPI code
136 --enable-vda enable VDA code
137 --enable-vdpau enable VDPAU code
138
139 Individual component options:
140 --disable-everything disable all components listed below
141 --disable-encoder=NAME disable encoder NAME
142 --enable-encoder=NAME enable encoder NAME
143 --disable-encoders disable all encoders
144 --disable-decoder=NAME disable decoder NAME
145 --enable-decoder=NAME enable decoder NAME
146 --disable-decoders disable all decoders
147 --disable-hwaccel=NAME disable hwaccel NAME
148 --enable-hwaccel=NAME enable hwaccel NAME
149 --disable-hwaccels disable all hwaccels
150 --disable-muxer=NAME disable muxer NAME
151 --enable-muxer=NAME enable muxer NAME
152 --disable-muxers disable all muxers
153 --disable-demuxer=NAME disable demuxer NAME
154 --enable-demuxer=NAME enable demuxer NAME
155 --disable-demuxers disable all demuxers
156 --enable-parser=NAME enable parser NAME
157 --disable-parser=NAME disable parser NAME
158 --disable-parsers disable all parsers
159 --enable-bsf=NAME enable bitstream filter NAME
160 --disable-bsf=NAME disable bitstream filter NAME
161 --disable-bsfs disable all bitstream filters
162 --enable-protocol=NAME enable protocol NAME
163 --disable-protocol=NAME disable protocol NAME
164 --disable-protocols disable all protocols
165 --enable-indev=NAME enable input device NAME
166 --disable-indev=NAME disable input device NAME
167 --disable-indevs disable input devices
168 --enable-outdev=NAME enable output device NAME
169 --disable-outdev=NAME disable output device NAME
170 --disable-outdevs disable output devices
171 --disable-devices disable all devices
172 --enable-filter=NAME enable filter NAME
173 --disable-filter=NAME disable filter NAME
174 --disable-filters disable all filters
175
176 External library support:
177 --enable-avisynth enable reading of AviSynth script files [no]
178 --enable-bzlib enable bzlib [autodetect]
179 --enable-frei0r enable frei0r video filtering
180 --enable-gnutls enable gnutls [no]
181 --enable-libbs2b enable bs2b DSP library [no]
182 --enable-libcdio enable audio CD grabbing with libcdio
183 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
184 and libraw1394 [no]
185 --enable-libfaac enable AAC encoding via libfaac [no]
186 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
187 --enable-libfreetype enable libfreetype [no]
188 --enable-libgsm enable GSM de/encoding via libgsm [no]
189 --enable-libilbc enable iLBC de/encoding via libilbc [no]
190 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
191 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
192 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
193 --enable-libopencv enable video filtering via libopencv [no]
194 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
195 --enable-libopus enable Opus de/encoding via libopus [no]
196 --enable-libpulse enable Pulseaudio input via libpulse [no]
197 --enable-librtmp enable RTMP[E] support via librtmp [no]
198 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
199 --enable-libspeex enable Speex de/encoding via libspeex [no]
200 --enable-libtheora enable Theora encoding via libtheora [no]
201 --enable-libtwolame enable MP2 encoding via libtwolame [no]
202 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
203 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
204 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
205 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
206 --enable-libwavpack enable wavpack encoding via libwavpack [no]
207 --enable-libwebp enable WebP encoding via libwebp [no]
208 --enable-libx264 enable H.264 encoding via x264 [no]
209 --enable-libx265 enable HEVC encoding via x265 [no]
210 --enable-libxavs enable AVS encoding via xavs [no]
211 --enable-libxvid enable Xvid encoding via xvidcore,
212 native MPEG-4/Xvid encoder exists [no]
213 --enable-openssl enable openssl [no]
214 --enable-x11grab enable X11 grabbing [no]
215 --enable-zlib enable zlib [autodetect]
216
217 Toolchain options:
218 --arch=ARCH select architecture [$arch]
219 --cpu=CPU select the minimum required CPU (affects
220 instruction selection, may crash on older CPUs)
221 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
222 --enable-cross-compile assume a cross-compiler is used
223 --sysroot=PATH root of cross-build tree
224 --sysinclude=PATH location of cross-build system headers
225 --target-os=OS compiler targets OS [$target_os]
226 --target-exec=CMD command to run executables on target
227 --target-path=DIR path to view of build directory on target
228 --target-samples=DIR path to samples directory on target
229 --toolchain=NAME set tool defaults according to NAME
230 --nm=NM use nm tool
231 --ar=AR use archive tool AR [$ar_default]
232 --as=AS use assembler AS [$as_default]
233 --cc=CC use C compiler CC [$cc_default]
234 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
235 --ld=LD use linker LD
236 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
237 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
238 --host-cc=HOSTCC use host C compiler HOSTCC
239 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
240 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
241 --host-ld=HOSTLD use host linker HOSTLD
242 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
243 --host-libs=HLIBS use libs HLIBS when linking for host
244 --host-os=OS compiler host OS [$target_os]
245 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
246 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
247 --extra-libs=ELIBS add ELIBS [$ELIBS]
248 --extra-version=STRING version string suffix []
249 --optflags=OPTFLAGS override optimization-related compiler flags
250 --build-suffix=SUFFIX library name suffix []
251 --enable-pic build position-independent code
252 --enable-thumb compile for Thumb instruction set
253 --enable-lto use link-time optimization
254
255 Advanced options (experts only):
256 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
257 --disable-symver disable symbol versioning
258 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
259 --disable-safe-bitstream-reader
260 disable buffer boundary checking in bitreaders
261 (faster, but may crash)
262 --enable-memalign-hack emulate memalign, interferes with memory debuggers
263 --enable-sram allow use of on-chip SRAM
264
265 Optimization options (experts only):
266 --disable-asm disable all assembler optimizations
267 --disable-altivec disable AltiVec optimizations
268 --disable-amd3dnow disable 3DNow! optimizations
269 --disable-amd3dnowext disable 3DNow! extended optimizations
270 --disable-mmx disable MMX optimizations
271 --disable-mmxext disable MMXEXT optimizations
272 --disable-sse disable SSE optimizations
273 --disable-sse2 disable SSE2 optimizations
274 --disable-sse3 disable SSE3 optimizations
275 --disable-ssse3 disable SSSE3 optimizations
276 --disable-sse4 disable SSE4 optimizations
277 --disable-sse42 disable SSE4.2 optimizations
278 --disable-avx disable AVX optimizations
279 --disable-xop disable XOP optimizations
280 --disable-fma3 disable FMA3 optimizations
281 --disable-fma4 disable FMA4 optimizations
282 --disable-avx2 disable AVX2 optimizations
283 --disable-armv5te disable armv5te optimizations
284 --disable-armv6 disable armv6 optimizations
285 --disable-armv6t2 disable armv6t2 optimizations
286 --disable-vfp disable VFP optimizations
287 --disable-neon disable NEON optimizations
288 --disable-inline-asm disable use of inline assembler
289 --disable-yasm disable use of yasm assembler
290
291 Developer options (useful when working on Libav itself):
292 --disable-debug disable debugging symbols
293 --enable-debug=LEVEL set the debug level [$debuglevel]
294 --disable-optimizations disable compiler optimizations
295 --enable-extra-warnings enable more compiler warnings
296 --samples=PATH location of test samples for FATE, if not set use
297 \$LIBAV_SAMPLES at make invocation time.
298 --enable-neon-clobber-test check NEON registers for clobbering (should be
299 used only for debugging purposes)
300 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
301 should be used only for debugging purposes)
302 --enable-random randomly enable/disable components
303 --disable-random
304 --enable-random=LIST randomly enable/disable specific components or
305 --disable-random=LIST component groups. LIST is a comma-separated list
306 of NAME[:PROB] entries where NAME is a component
307 (group) and PROB the probability associated with
308 NAME (default 0.5).
309 --random-seed=VALUE seed value for --enable/disable-random
310
311 NOTE: Object files are built at the place where configure is launched.
312 EOF
313 exit 0
314 }
315
316 quotes='""'
317
318 log(){
319 echo "$@" >> $logfile
320 }
321
322 log_file(){
323 log BEGIN $1
324 pr -n -t $1 >> $logfile
325 log END $1
326 }
327
328 echolog(){
329 log "$@"
330 echo "$@"
331 }
332
333 warn(){
334 log "WARNING: $*"
335 WARNINGS="${WARNINGS}WARNING: $*\n"
336 }
337
338 die(){
339 echolog "$@"
340 cat <<EOF
341
342 If you think configure made a mistake, make sure you are using the latest
343 version from Git. If the latest version fails, report the problem to the
344 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
345 EOF
346 if disabled logging; then
347 cat <<EOF
348 Rerun configure with logging enabled (do not use --disable-logging), and
349 include the log this produces with your report.
350 EOF
351 else
352 cat <<EOF
353 Include the log file "$logfile" produced by configure as this will help
354 solving the problem.
355 EOF
356 fi
357 exit 1
358 }
359
360 # Avoid locale weirdness, besides we really just want to translate ASCII.
361 toupper(){
362 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
363 }
364
365 tolower(){
366 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
367 }
368
369 c_escape(){
370 echo "$*" | sed 's/["\\]/\\\0/g'
371 }
372
373 sh_quote(){
374 v=$(echo "$1" | sed "s/'/'\\\\''/g")
375 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
376 echo "$v"
377 }
378
379 cleanws(){
380 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
381 }
382
383 filter(){
384 pat=$1
385 shift
386 for v; do
387 eval "case $v in $pat) echo $v ;; esac"
388 done
389 }
390
391 filter_out(){
392 pat=$1
393 shift
394 for v; do
395 eval "case $v in $pat) ;; *) echo $v ;; esac"
396 done
397 }
398
399 map(){
400 m=$1
401 shift
402 for v; do eval $m; done
403 }
404
405 add_suffix(){
406 suffix=$1
407 shift
408 for v; do echo ${v}${suffix}; done
409 }
410
411 set_all(){
412 value=$1
413 shift
414 for var in $*; do
415 eval $var=$value
416 done
417 }
418
419 set_weak(){
420 value=$1
421 shift
422 for var; do
423 eval : \${$var:=$value}
424 done
425 }
426
427 sanitize_var_name(){
428 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
429 }
430
431 set_safe(){
432 var=$1
433 shift
434 eval $(sanitize_var_name "$var")='$*'
435 }
436
437 get_safe(){
438 eval echo \$$(sanitize_var_name "$1")
439 }
440
441 pushvar(){
442 for pvar in $*; do
443 eval level=\${${pvar}_level:=0}
444 eval ${pvar}_${level}="\$$pvar"
445 eval ${pvar}_level=$(($level+1))
446 done
447 }
448
449 popvar(){
450 for pvar in $*; do
451 eval level=\${${pvar}_level:-0}
452 test $level = 0 && continue
453 eval level=$(($level-1))
454 eval $pvar="\${${pvar}_${level}}"
455 eval ${pvar}_level=$level
456 eval unset ${pvar}_${level}
457 done
458 }
459
460 enable(){
461 set_all yes $*
462 }
463
464 disable(){
465 set_all no $*
466 }
467
468 enable_weak(){
469 set_weak yes $*
470 }
471
472 disable_weak(){
473 set_weak no $*
474 }
475
476 enable_safe(){
477 for var; do
478 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
479 done
480 }
481
482 disable_safe(){
483 for var; do
484 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
485 done
486 }
487
488 do_enable_deep(){
489 for var; do
490 enabled $var && continue
491 eval sel="\$${var}_select"
492 eval sgs="\$${var}_suggest"
493 pushvar var sgs
494 enable_deep $sel
495 popvar sgs
496 enable_deep_weak $sgs
497 popvar var
498 done
499 }
500
501 enable_deep(){
502 do_enable_deep $*
503 enable $*
504 }
505
506 enable_deep_weak(){
507 for var; do
508 disabled $var && continue
509 pushvar var
510 do_enable_deep $var
511 popvar var
512 enable_weak $var
513 done
514 }
515
516 enabled(){
517 test "${1#!}" = "$1" && op== || op=!=
518 eval test "x\$${1#!}" $op "xyes"
519 }
520
521 disabled(){
522 test "${1#!}" = "$1" && op== || op=!=
523 eval test "x\$${1#!}" $op "xno"
524 }
525
526 enabled_all(){
527 for opt; do
528 enabled $opt || return 1
529 done
530 }
531
532 disabled_all(){
533 for opt; do
534 disabled $opt || return 1
535 done
536 }
537
538 enabled_any(){
539 for opt; do
540 enabled $opt && return 0
541 done
542 }
543
544 disabled_any(){
545 for opt; do
546 disabled $opt && return 0
547 done
548 return 1
549 }
550
551 set_default(){
552 for opt; do
553 eval : \${$opt:=\$${opt}_default}
554 done
555 }
556
557 is_in(){
558 value=$1
559 shift
560 for var in $*; do
561 [ $var = $value ] && return 0
562 done
563 return 1
564 }
565
566 do_check_deps(){
567 for cfg; do
568 cfg="${cfg#!}"
569 enabled ${cfg}_checking && die "Circular dependency for $cfg."
570 disabled ${cfg}_checking && continue
571 enable ${cfg}_checking
572 append allopts $cfg
573
574 eval dep_all="\$${cfg}_deps"
575 eval dep_any="\$${cfg}_deps_any"
576 eval dep_sel="\$${cfg}_select"
577 eval dep_sgs="\$${cfg}_suggest"
578 eval dep_ifa="\$${cfg}_if"
579 eval dep_ifn="\$${cfg}_if_any"
580
581 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
582 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
583 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
584
585 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
586 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
587 enabled_all $dep_all || disable $cfg
588 enabled_any $dep_any || disable $cfg
589 disabled_any $dep_sel && disable $cfg
590
591 if enabled $cfg; then
592 enable_deep $dep_sel
593 enable_deep_weak $dep_sgs
594 fi
595
596 disable ${cfg}_checking
597 done
598 }
599
600 check_deps(){
601 unset allopts
602
603 do_check_deps "$@"
604
605 for cfg in $allopts; do
606 enabled $cfg || continue
607 eval dep_extralibs="\$${cfg}_extralibs"
608 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
609 done
610 }
611
612 print_config(){
613 pfx=$1
614 files=$2
615 shift 2
616 map 'eval echo "$v \${$v:-no}"' "$@" |
617 awk "BEGIN { split(\"$files\", files) }
618 {
619 c = \"$pfx\" toupper(\$1);
620 v = \$2;
621 sub(/yes/, 1, v);
622 sub(/no/, 0, v);
623 for (f in files) {
624 file = files[f];
625 if (file ~ /\\.h\$/) {
626 printf(\"#define %s %d\\n\", c, v) >>file;
627 } else if (file ~ /\\.asm\$/) {
628 printf(\"%%define %s %d\\n\", c, v) >>file;
629 } else if (file ~ /\\.mak\$/) {
630 n = -v ? \"\" : \"!\";
631 printf(\"%s%s=yes\\n\", n, c) >>file;
632 }
633 }
634 }"
635 }
636
637 print_enabled(){
638 suf=$1
639 shift
640 for v; do
641 enabled $v && printf "%s\n" ${v%$suf};
642 done
643 }
644
645 append(){
646 var=$1
647 shift
648 eval "$var=\"\$$var $*\""
649 }
650
651 prepend(){
652 var=$1
653 shift
654 eval "$var=\"$* \$$var\""
655 }
656
657 unique(){
658 var=$1
659 uniq_list=""
660 for tok in $(eval echo \$$var); do
661 uniq_list="$(filter_out $tok $uniq_list) $tok"
662 done
663 eval "$var=\"${uniq_list}\""
664 }
665
666 add_cppflags(){
667 append CPPFLAGS "$@"
668 }
669
670 add_cflags(){
671 append CFLAGS $($cflags_filter "$@")
672 }
673
674 add_asflags(){
675 append ASFLAGS $($asflags_filter "$@")
676 }
677
678 add_ldflags(){
679 append LDFLAGS $($ldflags_filter "$@")
680 }
681
682 add_stripflags(){
683 append STRIPFLAGS "$@"
684 }
685
686 add_extralibs(){
687 prepend extralibs $($ldflags_filter "$@")
688 }
689
690 add_host_cppflags(){
691 append host_cppflags "$@"
692 }
693
694 add_host_cflags(){
695 append host_cflags $($host_cflags_filter "$@")
696 }
697
698 add_host_ldflags(){
699 append host_ldflags $($host_ldflags_filter "$@")
700 }
701
702 add_compat(){
703 append compat_objs $1
704 shift
705 map 'add_cppflags -D$v' "$@"
706 }
707
708 check_cmd(){
709 log "$@"
710 "$@" >> $logfile 2>&1
711 }
712
713 cc_o(){
714 eval printf '%s\\n' $CC_O
715 }
716
717 cc_e(){
718 eval printf '%s\\n' $CC_E
719 }
720
721 check_cc(){
722 log check_cc "$@"
723 cat > $TMPC
724 log_file $TMPC
725 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
726 }
727
728 check_cpp(){
729 log check_cpp "$@"
730 cat > $TMPC
731 log_file $TMPC
732 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
733 }
734
735 as_o(){
736 eval printf '%s\\n' $AS_O
737 }
738
739 check_as(){
740 log check_as "$@"
741 cat > $TMPS
742 log_file $TMPS
743 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
744 }
745
746 check_inline_asm(){
747 log check_inline_asm "$@"
748 name="$1"
749 code="$2"
750 shift 2
751 disable $name
752 check_cc "$@" <<EOF && enable $name
753 void foo(void){ __asm__ volatile($code); }
754 EOF
755 }
756
757 check_insn(){
758 log check_insn "$@"
759 check_inline_asm ${1}_inline "\"$2\""
760 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
761 }
762
763 check_yasm(){
764 log check_yasm "$@"
765 echo "$1" > $TMPS
766 log_file $TMPS
767 shift 1
768 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
769 }
770
771 ld_o(){
772 eval printf '%s\\n' $LD_O
773 }
774
775 check_ld(){
776 log check_ld "$@"
777 flags=$(filter_out '-l*' "$@")
778 libs=$(filter '-l*' "$@")
779 check_cc $($cflags_filter $flags) || return
780 flags=$($ldflags_filter $flags)
781 libs=$($ldflags_filter $libs)
782 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
783 }
784
785 print_include(){
786 hdr=$1
787 test "${hdr%.h}" = "${hdr}" &&
788 echo "#include $hdr" ||
789 echo "#include <$hdr>"
790 }
791
792 check_code(){
793 log check_code "$@"
794 check=$1
795 headers=$2
796 code=$3
797 shift 3
798 {
799 for hdr in $headers; do
800 print_include $hdr
801 done
802 echo "int main(void) { $code; return 0; }"
803 } | check_$check "$@"
804 }
805
806 check_cppflags(){
807 log check_cppflags "$@"
808 check_cc "$@" <<EOF && append CPPFLAGS "$@"
809 int x;
810 EOF
811 }
812
813 test_cflags(){
814 log test_cflags "$@"
815 set -- $($cflags_filter "$@")
816 check_cc "$@" <<EOF
817 int x;
818 EOF
819 }
820
821 check_cflags(){
822 log check_cflags "$@"
823 test_cflags "$@" && add_cflags "$@"
824 }
825
826 test_ldflags(){
827 log test_ldflags "$@"
828 check_ld "$@" <<EOF
829 int main(void){ return 0; }
830 EOF
831 }
832
833 check_ldflags(){
834 log check_ldflags "$@"
835 test_ldflags "$@" && add_ldflags "$@"
836 }
837
838 test_stripflags(){
839 log test_stripflags "$@"
840 # call check_cc to get a fresh TMPO
841 check_cc <<EOF
842 int main(void) { return 0; }
843 EOF
844 check_cmd $strip $STRIPFLAGS "$@" $TMPO
845 }
846
847 check_stripflags(){
848 log check_stripflags "$@"
849 test_stripflags "$@" && add_stripflags "$@"
850 }
851
852 check_header(){
853 log check_header "$@"
854 header=$1
855 shift
856 disable_safe $header
857 check_cpp "$@" <<EOF && enable_safe $header
858 #include <$header>
859 int x;
860 EOF
861 }
862
863 check_func(){
864 log check_func "$@"
865 func=$1
866 shift
867 disable $func
868 check_ld "$@" <<EOF && enable $func
869 extern int $func();
870 int main(void){ $func(); }
871 EOF
872 }
873
874 check_mathfunc(){
875 log check_mathfunc "$@"
876 func=$1
877 narg=$2
878 shift 2
879 test $narg = 2 && args="f, g" || args="f"
880 disable $func
881 check_ld "$@" <<EOF && enable $func
882 #include <math.h>
883 float foo(float f, float g) { return $func($args); }
884 int main(void){ return 0; }
885 EOF
886 }
887
888 check_func_headers(){
889 log check_func_headers "$@"
890 headers=$1
891 funcs=$2
892 shift 2
893 {
894 for hdr in $headers; do
895 print_include $hdr
896 done
897 for func in $funcs; do
898 echo "long check_$func(void) { return (long) $func; }"
899 done
900 echo "int main(void) { return 0; }"
901 } | check_ld "$@" && enable $funcs && enable_safe $headers
902 }
903
904 check_cpp_condition(){
905 log check_cpp_condition "$@"
906 header=$1
907 condition=$2
908 shift 2
909 check_cpp "$@" <<EOF
910 #include <$header>
911 #if !($condition)
912 #error "unsatisfied condition: $condition"
913 #endif
914 EOF
915 }
916
917 check_lib(){
918 log check_lib "$@"
919 header="$1"
920 func="$2"
921 shift 2
922 check_header $header && check_func $func "$@" && add_extralibs "$@"
923 }
924
925 check_lib2(){
926 log check_lib2 "$@"
927 headers="$1"
928 funcs="$2"
929 shift 2
930 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
931 }
932
933 check_pkg_config(){
934 log check_pkg_config "$@"
935 pkg="$1"
936 headers="$2"
937 funcs="$3"
938 shift 3
939 check_cmd $pkg_config --exists --print-errors $pkg || return
940 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
941 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
942 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
943 set_safe ${pkg}_cflags $pkg_cflags &&
944 set_safe ${pkg}_libs $pkg_libs
945 }
946
947 check_exec(){
948 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
949 }
950
951 check_exec_crash(){
952 code=$(cat)
953
954 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
955 # are safe but may not be available everywhere. Thus we use
956 # raise(SIGTERM) instead. The check is run in a subshell so we
957 # can redirect the "Terminated" message from the shell. SIGBUS
958 # is not defined by standard C so it is used conditionally.
959
960 (check_exec "$@") >> $logfile 2>&1 <<EOF
961 #include <signal.h>
962 static void sighandler(int sig){
963 raise(SIGTERM);
964 }
965 int foo(void){
966 $code
967 }
968 int (*func_ptr)(void) = foo;
969 int main(void){
970 signal(SIGILL, sighandler);
971 signal(SIGFPE, sighandler);
972 signal(SIGSEGV, sighandler);
973 #ifdef SIGBUS
974 signal(SIGBUS, sighandler);
975 #endif
976 return func_ptr();
977 }
978 EOF
979 }
980
981 check_type(){
982 log check_type "$@"
983 headers=$1
984 type=$2
985 shift 2
986 disable_safe "$type"
987 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
988 }
989
990 check_struct(){
991 log check_struct "$@"
992 headers=$1
993 struct=$2
994 member=$3
995 shift 3
996 disable_safe "${struct}_${member}"
997 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
998 enable_safe "${struct}_${member}"
999 }
1000
1001 check_builtin(){
1002 log check_builtin "$@"
1003 name=$1
1004 headers=$2
1005 builtin=$3
1006 shift 3
1007 disable "$name"
1008 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1009 }
1010
1011 check_compile_assert(){
1012 log check_compile_assert "$@"
1013 name=$1
1014 headers=$2
1015 condition=$3
1016 shift 3
1017 disable "$name"
1018 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1019 }
1020
1021 require(){
1022 name="$1"
1023 header="$2"
1024 func="$3"
1025 shift 3
1026 check_lib $header $func "$@" || die "ERROR: $name not found"
1027 }
1028
1029 require2(){
1030 name="$1"
1031 headers="$2"
1032 func="$3"
1033 shift 3
1034 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1035 }
1036
1037 require_pkg_config(){
1038 pkg="$1"
1039 check_pkg_config "$@" || die "ERROR: $pkg not found"
1040 add_cflags $(get_safe ${pkg}_cflags)
1041 add_extralibs $(get_safe ${pkg}_libs)
1042 }
1043
1044 hostcc_e(){
1045 eval printf '%s\\n' $HOSTCC_E
1046 }
1047
1048 hostcc_o(){
1049 eval printf '%s\\n' $HOSTCC_O
1050 }
1051
1052 check_host_cc(){
1053 log check_host_cc "$@"
1054 cat > $TMPC
1055 log_file $TMPC
1056 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1057 }
1058
1059 check_host_cpp(){
1060 log check_host_cpp "$@"
1061 cat > $TMPC
1062 log_file $TMPC
1063 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1064 }
1065
1066 check_host_cppflags(){
1067 log check_host_cppflags "$@"
1068 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1069 int x;
1070 EOF
1071 }
1072
1073 check_host_cflags(){
1074 log check_host_cflags "$@"
1075 set -- $($host_cflags_filter "$@")
1076 check_host_cc "$@" <<EOF && append host_cflags "$@"
1077 int x;
1078 EOF
1079 }
1080
1081 check_host_cpp_condition(){
1082 log check_host_cpp_condition "$@"
1083 header=$1
1084 condition=$2
1085 shift 2
1086 check_host_cpp "$@" <<EOF
1087 #include <$header>
1088 #if !($condition)
1089 #error "unsatisfied condition: $condition"
1090 #endif
1091 EOF
1092 }
1093
1094 apply(){
1095 file=$1
1096 shift
1097 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1098 }
1099
1100 cp_if_changed(){
1101 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1102 mkdir -p "$(dirname $2)"
1103 $cp_f "$1" "$2"
1104 }
1105
1106 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1107 # system-dependent things.
1108
1109 COMPONENT_LIST="
1110 bsfs
1111 decoders
1112 demuxers
1113 encoders
1114 filters
1115 hwaccels
1116 indevs
1117 muxers
1118 outdevs
1119 parsers
1120 protocols
1121 "
1122
1123 EXAMPLE_LIST="
1124 avcodec_example
1125 filter_audio_example
1126 metadata_example
1127 output_example
1128 transcode_aac_example
1129 "
1130
1131 EXTERNAL_LIBRARY_LIST="
1132 avisynth
1133 bzlib
1134 frei0r
1135 gnutls
1136 libbs2b
1137 libcdio
1138 libdc1394
1139 libfaac
1140 libfdk_aac
1141 libfontconfig
1142 libfreetype
1143 libgsm
1144 libilbc
1145 libmp3lame
1146 libopencore_amrnb
1147 libopencore_amrwb
1148 libopencv
1149 libopenjpeg
1150 libopus
1151 libpulse
1152 librtmp
1153 libschroedinger
1154 libspeex
1155 libtheora
1156 libtwolame
1157 libvo_aacenc
1158 libvo_amrwbenc
1159 libvorbis
1160 libvpx
1161 libwavpack
1162 libwebp
1163 libx264
1164 libx265
1165 libxavs
1166 libxvid
1167 openssl
1168 x11grab
1169 zlib
1170 "
1171
1172 FEATURE_LIST="
1173 gray
1174 hardcoded_tables
1175 runtime_cpudetect
1176 safe_bitstream_reader
1177 shared
1178 small
1179 sram
1180 static
1181 swscale_alpha
1182 "
1183
1184 HWACCEL_LIST="
1185 dxva2
1186 vaapi
1187 vda
1188 vdpau
1189 "
1190
1191 LIBRARY_LIST="
1192 avcodec
1193 avdevice
1194 avfilter
1195 avformat
1196 avresample
1197 avutil
1198 swscale
1199 "
1200
1201 LICENSE_LIST="
1202 gpl
1203 nonfree
1204 version3
1205 "
1206
1207 PROGRAM_LIST="
1208 avconv
1209 avplay
1210 avprobe
1211 "
1212
1213 SUBSYSTEM_LIST="
1214 dct
1215 doc
1216 error_resilience
1217 fft
1218 lsp
1219 lzo
1220 mdct
1221 network
1222 rdft
1223 "
1224
1225 CONFIG_LIST="
1226 $COMPONENT_LIST
1227 $EXAMPLE_LIST
1228 $EXTERNAL_LIBRARY_LIST
1229 $FEATURE_LIST
1230 $HWACCEL_LIST
1231 $LICENSE_LIST
1232 $LIBRARY_LIST
1233 $PROGRAM_LIST
1234 $SUBSYSTEM_LIST
1235 memalign_hack
1236 neon_clobber_test
1237 pic
1238 pod2man
1239 texi2html
1240 thumb
1241 xmm_clobber_test
1242 "
1243
1244 THREADS_LIST="
1245 pthreads
1246 w32threads
1247 "
1248
1249 ATOMICS_LIST="
1250 atomics_gcc
1251 atomics_suncc
1252 atomics_win32
1253 "
1254
1255 ARCH_LIST="
1256 aarch64
1257 alpha
1258 arm
1259 avr32
1260 avr32_ap
1261 avr32_uc
1262 bfin
1263 ia64
1264 m68k
1265 mips
1266 mips64
1267 parisc
1268 ppc
1269 ppc64
1270 s390
1271 sh4
1272 sparc
1273 sparc64
1274 tilegx
1275 tilepro
1276 tomi
1277 x86
1278 x86_32
1279 x86_64
1280 "
1281
1282 ARCH_EXT_LIST_ARM="
1283 armv5te
1284 armv6
1285 armv6t2
1286 armv8
1287 neon
1288 vfp
1289 vfpv3
1290 "
1291
1292 ARCH_EXT_LIST_X86_SIMD="
1293 amd3dnow
1294 amd3dnowext
1295 avx
1296 avx2
1297 fma3
1298 fma4
1299 mmx
1300 mmxext
1301 sse
1302 sse2
1303 sse3
1304 sse4
1305 sse42
1306 ssse3
1307 xop
1308 "
1309
1310 ARCH_EXT_LIST_PPC="
1311 altivec
1312 dcbzl
1313 ldbrx
1314 ppc4xx
1315 "
1316
1317 ARCH_EXT_LIST_X86="
1318 $ARCH_EXT_LIST_X86_SIMD
1319 cpunop
1320 i686
1321 "
1322
1323 ARCH_EXT_LIST="
1324 $ARCH_EXT_LIST_ARM
1325 $ARCH_EXT_LIST_PPC
1326 $ARCH_EXT_LIST_X86
1327 loongson
1328 vis
1329 "
1330
1331 ARCH_FEATURES="
1332 aligned_stack
1333 fast_64bit
1334 fast_clz
1335 fast_cmov
1336 local_aligned_8
1337 local_aligned_16
1338 "
1339
1340 BUILTIN_LIST="
1341 atomic_cas_ptr
1342 machine_rw_barrier
1343 MemoryBarrier
1344 mm_empty
1345 rdtsc
1346 sync_val_compare_and_swap
1347 "
1348 HAVE_LIST_CMDLINE="
1349 inline_asm
1350 symver
1351 yasm
1352 "
1353
1354 HAVE_LIST_PUB="
1355 bigendian
1356 fast_unaligned
1357 "
1358
1359 HEADERS_LIST="
1360 alsa_asoundlib_h
1361 altivec_h
1362 arpa_inet_h
1363 cdio_paranoia_h
1364 cdio_paranoia_paranoia_h
1365 dev_bktr_ioctl_bt848_h
1366 dev_bktr_ioctl_meteor_h
1367 dev_ic_bt8xx_h
1368 dev_video_bktr_ioctl_bt848_h
1369 dev_video_meteor_ioctl_meteor_h
1370 direct_h
1371 dlfcn_h
1372 dxva_h
1373 gsm_h
1374 io_h
1375 mach_mach_time_h
1376 machine_ioctl_bt848_h
1377 machine_ioctl_meteor_h
1378 malloc_h
1379 poll_h
1380 sndio_h
1381 soundcard_h
1382 sys_mman_h
1383 sys_param_h
1384 sys_resource_h
1385 sys_select_h
1386 sys_soundcard_h
1387 sys_time_h
1388 sys_un_h
1389 sys_videoio_h
1390 unistd_h
1391 windows_h
1392 winsock2_h
1393 "
1394
1395 MATH_FUNCS="
1396 atanf
1397 atan2f
1398 cbrtf
1399 cosf
1400 exp2
1401 exp2f
1402 expf
1403 isinf
1404 isnan
1405 ldexpf
1406 llrint
1407 llrintf
1408 log2
1409 log2f
1410 log10f
1411 lrint
1412 lrintf
1413 powf
1414 rint
1415 round
1416 roundf
1417 sinf
1418 trunc
1419 truncf
1420 "
1421
1422 SYSTEM_FUNCS="
1423 aligned_malloc
1424 closesocket
1425 CommandLineToArgvW
1426 CoTaskMemFree
1427 CryptGenRandom
1428 dlopen
1429 fcntl
1430 flt_lim
1431 fork
1432 getaddrinfo
1433 gethrtime
1434 getopt
1435 GetProcessAffinityMask
1436 GetProcessMemoryInfo
1437 GetProcessTimes
1438 getrusage
1439 getservbyport
1440 GetSystemTimeAsFileTime
1441 gettimeofday
1442 inet_aton
1443 isatty
1444 jack_port_get_latency_range
1445 localtime_r
1446 mach_absolute_time
1447 MapViewOfFile
1448 memalign
1449 mkstemp
1450 mmap
1451 mprotect
1452 nanosleep
1453 posix_memalign
1454 sched_getaffinity
1455 SetConsoleTextAttribute
1456 setmode
1457 setrlimit
1458 Sleep
1459 strerror_r
1460 strptime
1461 sysconf
1462 sysctl
1463 usleep
1464 VirtualAlloc
1465 "
1466
1467 TOOLCHAIN_FEATURES="
1468 as_dn_directive
1469 as_func
1470 asm_mod_q
1471 attribute_may_alias
1472 attribute_packed
1473 ebp_available
1474 ebx_available
1475 gnu_as
1476 ibm_asm
1477 inline_asm_labels
1478 pragma_deprecated
1479 symver_asm_label
1480 symver_gnu_asm
1481 vfp_args
1482 xform_asm
1483 xmm_clobbers
1484 "
1485
1486 TYPES_LIST="
1487 socklen_t
1488 struct_addrinfo
1489 struct_group_source_req
1490 struct_ip_mreq_source
1491 struct_ipv6_mreq
1492 struct_pollfd
1493 struct_rusage_ru_maxrss
1494 struct_sockaddr_in6
1495 struct_sockaddr_sa_len
1496 struct_sockaddr_storage
1497 struct_v4l2_frmivalenum_discrete
1498 "
1499
1500 HAVE_LIST="
1501 $ARCH_EXT_LIST
1502 $(add_suffix _external $ARCH_EXT_LIST)
1503 $(add_suffix _inline $ARCH_EXT_LIST)
1504 $ARCH_FEATURES
1505 $ATOMICS_LIST
1506 $BUILTIN_LIST
1507 $HAVE_LIST_CMDLINE
1508 $HAVE_LIST_PUB
1509 $HEADERS_LIST
1510 $MATH_FUNCS
1511 $SYSTEM_FUNCS
1512 $THREADS_LIST
1513 $TOOLCHAIN_FEATURES
1514 $TYPES_LIST
1515 atomics_native
1516 dos_paths
1517 dxva2_lib
1518 libc_msvcrt
1519 libdc1394_1
1520 libdc1394_2
1521 sdl
1522 threads
1523 vdpau_x11
1524 xlib
1525 "
1526
1527 # options emitted with CONFIG_ prefix but not available on the command line
1528 CONFIG_EXTRA="
1529 aandcttables
1530 ac3dsp
1531 audio_frame_queue
1532 blockdsp
1533 cabac
1534 dsputil
1535 gcrypt
1536 golomb
1537 gplv3
1538 h263dsp
1539 h264chroma
1540 h264dsp
1541 h264pred
1542 h264qpel
1543 hpeldsp
1544 huffman
1545 huffyuvdsp
1546 huffyuvencdsp
1547 intrax8
1548 lgplv3
1549 lpc
1550 mpegaudio
1551 mpegaudiodsp
1552 mpegvideo
1553 mpegvideoenc
1554 nettle
1555 qpeldsp
1556 rangecoder
1557 riffdec
1558 riffenc
1559 rtpdec
1560 rtpenc_chain
1561 sinewin
1562 tpeldsp
1563 videodsp
1564 vp3dsp
1565 "
1566
1567 CMDLINE_SELECT="
1568 $ARCH_EXT_LIST
1569 $CONFIG_LIST
1570 $HAVE_LIST_CMDLINE
1571 $THREADS_LIST
1572 asm
1573 cross_compile
1574 debug
1575 extra_warnings
1576 logging
1577 lto
1578 optimizations
1579 "
1580
1581 PATHS_LIST="
1582 bindir
1583 datadir
1584 docdir
1585 incdir
1586 libdir
1587 mandir
1588 prefix
1589 shlibdir
1590 "
1591
1592 CMDLINE_SET="
1593 $PATHS_LIST
1594 ar
1595 arch
1596 as
1597 build_suffix
1598 cc
1599 cpu
1600 cross_prefix
1601 dep_cc
1602 extra_version
1603 host_cc
1604 host_cflags
1605 host_ld
1606 host_ldflags
1607 host_libs
1608 host_os
1609 ld
1610 logfile
1611 malloc_prefix
1612 nm
1613 optflags
1614 pkg_config
1615 pkg_config_flags
1616 random_seed
1617 samples
1618 sysinclude
1619 sysroot
1620 target_exec
1621 target_os
1622 target_path
1623 target_samples
1624 toolchain
1625 "
1626
1627 CMDLINE_APPEND="
1628 extra_cflags
1629 host_cppflags
1630 "
1631
1632 # code dependency declarations
1633
1634 # architecture extensions
1635
1636 armv5te_deps="arm"
1637 armv6_deps="arm"
1638 armv6t2_deps="arm"
1639 armv8_deps="aarch64"
1640 neon_deps_any="aarch64 arm"
1641 vfp_deps_any="aarch64 arm"
1642 vfpv3_deps="vfp"
1643
1644 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1645
1646 altivec_deps="ppc"
1647 ppc4xx_deps="ppc"
1648
1649 cpunop_deps="i686"
1650 x86_64_select="i686"
1651 x86_64_suggest="fast_cmov"
1652
1653 amd3dnow_deps="mmx"
1654 amd3dnowext_deps="amd3dnow"
1655 i686_deps="x86"
1656 mmx_deps="x86"
1657 mmxext_deps="mmx"
1658 sse_deps="mmxext"
1659 sse2_deps="sse"
1660 sse3_deps="sse2"
1661 ssse3_deps="sse3"
1662 sse4_deps="ssse3"
1663 sse42_deps="sse4"
1664 avx_deps="sse42"
1665 xop_deps="avx"
1666 fma3_deps="avx"
1667 fma4_deps="avx"
1668 avx2_deps="avx"
1669
1670 mmx_external_deps="yasm"
1671 mmx_inline_deps="inline_asm"
1672 mmx_suggest="mmx_external mmx_inline"
1673
1674 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1675 eval dep=\$${ext}_deps
1676 eval ${ext}_external_deps='"${dep}_external"'
1677 eval ${ext}_inline_deps='"${dep}_inline"'
1678 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1679 done
1680
1681 aligned_stack_if_any="aarch64 ppc x86"
1682 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1683 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1684 fast_unaligned_if_any="aarch64 ppc x86"
1685
1686 need_memalign="altivec neon sse"
1687
1688 # system capabilities
1689 log2_deps="!libc_msvcrt"
1690
1691 symver_if_any="symver_asm_label symver_gnu_asm"
1692
1693 # threading support
1694 atomics_gcc_if="sync_val_compare_and_swap"
1695 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1696 atomics_win32_if="MemoryBarrier"
1697 atomics_native_if_any="$ATOMICS_LIST"
1698 w32threads_deps="atomics_native"
1699 threads_if_any="$THREADS_LIST"
1700
1701 # subsystems
1702 dct_select="rdft"
1703 error_resilience_select="dsputil"
1704 mdct_select="fft"
1705 rdft_select="fft"
1706 mpegaudio_select="mpegaudiodsp"
1707 mpegaudiodsp_select="dct"
1708 mpegvideo_select="blockdsp dsputil hpeldsp videodsp"
1709 mpegvideoenc_select="dsputil mpegvideo qpeldsp"
1710
1711 # decoders / encoders
1712 aac_decoder_select="mdct sinewin"
1713 aac_encoder_select="audio_frame_queue mdct sinewin"
1714 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1715 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1716 ac3_encoder_select="mdct ac3dsp dsputil"
1717 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1718 aic_decoder_select="dsputil golomb"
1719 alac_encoder_select="lpc"
1720 als_decoder_select="dsputil"
1721 amrnb_decoder_select="lsp"
1722 amrwb_decoder_select="lsp"
1723 amv_decoder_select="sp5x_decoder"
1724 ape_decoder_select="dsputil"
1725 asv1_decoder_select="blockdsp dsputil"
1726 asv1_encoder_select="dsputil"
1727 asv2_decoder_select="blockdsp dsputil"
1728 asv2_encoder_select="dsputil"
1729 atrac1_decoder_select="mdct sinewin"
1730 atrac3_decoder_select="mdct"
1731 atrac3p_decoder_select="mdct sinewin"
1732 bink_decoder_select="blockdsp hpeldsp"
1733 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1734 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1735 cavs_decoder_select="blockdsp dsputil golomb h264chroma qpeldsp videodsp"
1736 cllc_decoder_select="dsputil"
1737 comfortnoise_encoder_select="lpc"
1738 cook_decoder_select="dsputil mdct sinewin"
1739 cscd_decoder_select="lzo"
1740 cscd_decoder_suggest="zlib"
1741 dca_decoder_select="mdct"
1742 dnxhd_decoder_select="blockdsp dsputil"
1743 dnxhd_encoder_select="aandcttables blockdsp dsputil mpegvideoenc"
1744 dvvideo_decoder_select="dsputil"
1745 dvvideo_encoder_select="dsputil"
1746 dxa_decoder_deps="zlib"
1747 eac3_decoder_select="ac3_decoder"
1748 eac3_encoder_select="ac3_encoder"
1749 eamad_decoder_select="aandcttables blockdsp dsputil mpegvideo"
1750 eatgq_decoder_select="aandcttables dsputil"
1751 eatqi_decoder_select="aandcttables blockdsp dsputil error_resilience mpegvideo"
1752 exr_decoder_deps="zlib"
1753 ffv1_decoder_select="golomb rangecoder"
1754 ffv1_encoder_select="rangecoder"
1755 ffvhuff_decoder_select="huffyuv_decoder"
1756 ffvhuff_encoder_select="huffyuv_encoder"
1757 fic_decoder_select="golomb"
1758 flac_decoder_select="golomb"
1759 flac_encoder_select="dsputil golomb lpc"
1760 flashsv_decoder_deps="zlib"
1761 flashsv_encoder_deps="zlib"
1762 flashsv2_decoder_deps="zlib"
1763 flv_decoder_select="h263_decoder"
1764 flv_encoder_select="h263_encoder"
1765 fourxm_decoder_select="blockdsp dsputil"
1766 fraps_decoder_select="dsputil huffman"
1767 g2m_decoder_deps="zlib"
1768 g2m_decoder_select="blockdsp dsputil"
1769 h261_decoder_select="error_resilience mpegvideo"
1770 h261_encoder_select="aandcttables mpegvideoenc"
1771 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo qpeldsp"
1772 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1773 h263i_decoder_select="h263_decoder"
1774 h263p_encoder_select="h263_encoder"
1775 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1776 h264_decoder_suggest="error_resilience"
1777 hevc_decoder_select="cabac dsputil golomb videodsp"
1778 huffyuv_decoder_select="dsputil huffyuvdsp"
1779 huffyuv_encoder_select="dsputil huffman huffyuvencdsp"
1780 iac_decoder_select="imc_decoder"
1781 imc_decoder_select="dsputil fft mdct sinewin"
1782 indeo3_decoder_select="hpeldsp"
1783 interplay_video_decoder_select="hpeldsp"
1784 jpegls_decoder_select="golomb mjpeg_decoder"
1785 jpegls_encoder_select="golomb"
1786 jv_decoder_select="blockdsp"
1787 lagarith_decoder_select="huffyuvdsp"
1788 ljpeg_encoder_select="aandcttables mpegvideoenc"
1789 loco_decoder_select="golomb"
1790 mdec_decoder_select="blockdsp dsputil error_resilience mpegvideo"
1791 metasound_decoder_select="lsp mdct sinewin"
1792 mimic_decoder_select="blockdsp dsputil hpeldsp"
1793 mjpeg_decoder_select="blockdsp dsputil hpeldsp"
1794 mjpeg_encoder_select="aandcttables mpegvideoenc"
1795 mjpegb_decoder_select="mjpeg_decoder"
1796 mlp_decoder_select="mlp_parser"
1797 motionpixels_decoder_select="dsputil"
1798 mp1_decoder_select="mpegaudio"
1799 mp1float_decoder_select="mpegaudio"
1800 mp2_decoder_select="mpegaudio"
1801 mp2float_decoder_select="mpegaudio"
1802 mp3_decoder_select="mpegaudio"
1803 mp3adu_decoder_select="mpegaudio"
1804 mp3adufloat_decoder_select="mpegaudio"
1805 mp3float_decoder_select="mpegaudio"
1806 mp3on4_decoder_select="mpegaudio"
1807 mp3on4float_decoder_select="mpegaudio"
1808 mpc7_decoder_select="dsputil mpegaudiodsp"
1809 mpc8_decoder_select="mpegaudiodsp"
1810 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1811 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1812 mpeg1video_decoder_select="error_resilience mpegvideo"
1813 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1814 mpeg2video_decoder_select="error_resilience mpegvideo"
1815 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1816 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1817 mpeg4_encoder_select="h263_encoder"
1818 msmpeg4v1_decoder_select="h263_decoder"
1819 msmpeg4v2_decoder_select="h263_decoder"
1820 msmpeg4v2_encoder_select="h263_encoder"
1821 msmpeg4v3_decoder_select="h263_decoder"
1822 msmpeg4v3_encoder_select="h263_encoder"
1823 mss2_decoder_select="error_resilience qpeldsp vc1_decoder"
1824 mxpeg_decoder_select="mjpeg_decoder"
1825 nellymoser_decoder_select="mdct sinewin"
1826 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1827 nuv_decoder_select="dsputil lzo"
1828 on2avc_decoder_select="mdct"
1829 opus_decoder_deps="avresample"
1830 png_decoder_deps="zlib"
1831 png_encoder_deps="zlib"
1832 png_encoder_select="huffyuvencdsp"
1833 prores_decoder_select="dsputil"
1834 prores_encoder_select="dsputil"
1835 qcelp_decoder_select="lsp"
1836 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1837 ra_144_encoder_select="audio_frame_queue lpc"
1838 ralf_decoder_select="golomb"
1839 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1840 rv10_encoder_select="h263_encoder"
1841 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1842 rv20_encoder_select="h263_encoder"
1843 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1844 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1845 shorten_decoder_select="golomb"
1846 sipr_decoder_select="lsp"
1847 sp5x_decoder_select="mjpeg_decoder"
1848 svq1_decoder_select="hpeldsp"
1849 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1850 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1851 svq3_decoder_suggest="zlib"
1852 tak_decoder_select="dsputil"
1853 theora_decoder_select="vp3_decoder"
1854 thp_decoder_select="mjpeg_decoder"
1855 tiff_decoder_suggest="zlib"
1856 tiff_encoder_suggest="zlib"
1857 truehd_decoder_select="mlp_decoder"
1858 truemotion2_decoder_select="dsputil"
1859 truespeech_decoder_select="dsputil"
1860 tscc_decoder_deps="zlib"
1861 twinvq_decoder_select="mdct lsp sinewin"
1862 utvideo_decoder_select="dsputil"
1863 utvideo_encoder_select="dsputil huffman huffyuvencdsp"
1864 vble_decoder_select="huffyuvdsp"
1865 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 qpeldsp"
1866 vc1image_decoder_select="vc1_decoder"
1867 vorbis_decoder_select="mdct"
1868 vorbis_encoder_select="mdct"
1869 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1870 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1871 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1872 vp6a_decoder_select="vp6_decoder"
1873 vp6f_decoder_select="vp6_decoder"
1874 vp7_decoder_select="h264pred videodsp"
1875 vp8_decoder_select="h264pred videodsp"
1876 vp9_decoder_select="videodsp"
1877 webp_decoder_select="vp8_decoder"
1878 wmapro_decoder_select="mdct sinewin"
1879 wmav1_decoder_select="mdct sinewin"
1880 wmav1_encoder_select="mdct sinewin"
1881 wmav2_decoder_select="mdct sinewin"
1882 wmav2_encoder_select="mdct sinewin"
1883 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1884 wmv1_decoder_select="h263_decoder"
1885 wmv1_encoder_select="h263_encoder"
1886 wmv2_decoder_select="blockdsp h263_decoder intrax8 videodsp"
1887 wmv2_encoder_select="h263_encoder"
1888 wmv3_decoder_select="vc1_decoder"
1889 wmv3image_decoder_select="wmv3_decoder"
1890 zerocodec_decoder_deps="zlib"
1891 zlib_decoder_deps="zlib"
1892 zlib_encoder_deps="zlib"
1893 zmbv_decoder_deps="zlib"
1894 zmbv_encoder_deps="zlib"
1895
1896 # hardware accelerators
1897 dxva2_deps="dxva2api_h"
1898 vaapi_deps="va_va_h"
1899 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1900 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1901 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1902
1903 h263_vaapi_hwaccel_deps="vaapi"
1904 h263_vaapi_hwaccel_select="h263_decoder"
1905 h263_vdpau_hwaccel_deps="vdpau"
1906 h263_vdpau_hwaccel_select="h263_decoder"
1907 h264_dxva2_hwaccel_deps="dxva2"
1908 h264_dxva2_hwaccel_select="h264_decoder"
1909 h264_vaapi_hwaccel_deps="vaapi"
1910 h264_vaapi_hwaccel_select="h264_decoder"
1911 h264_vda_hwaccel_deps="vda"
1912 h264_vda_hwaccel_select="h264_decoder"
1913 h264_vda_old_hwaccel_deps="vda"
1914 h264_vda_old_hwaccel_select="h264_decoder"
1915 h264_vdpau_hwaccel_deps="vdpau"
1916 h264_vdpau_hwaccel_select="h264_decoder"
1917 mpeg1_vdpau_hwaccel_deps="vdpau"
1918 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1919 mpeg2_dxva2_hwaccel_deps="dxva2"
1920 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1921 mpeg2_vaapi_hwaccel_deps="vaapi"
1922 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1923 mpeg2_vdpau_hwaccel_deps="vdpau"
1924 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1925 mpeg4_vaapi_hwaccel_deps="vaapi"
1926 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1927 mpeg4_vdpau_hwaccel_deps="vdpau"
1928 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1929 vc1_dxva2_hwaccel_deps="dxva2"
1930 vc1_dxva2_hwaccel_select="vc1_decoder"
1931 vc1_vaapi_hwaccel_deps="vaapi"
1932 vc1_vaapi_hwaccel_select="vc1_decoder"
1933 vc1_vdpau_hwaccel_deps="vdpau"
1934 vc1_vdpau_hwaccel_select="vc1_decoder"
1935 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1936 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1937 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1938
1939 # parsers
1940 h264_parser_select="h264_decoder"
1941 mpegvideo_parser_select="error_resilience mpegvideo"
1942 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
1943 vc1_parser_select="mpegvideo"
1944
1945 # external libraries
1946 libfaac_encoder_deps="libfaac"
1947 libfaac_encoder_select="audio_frame_queue"
1948 libfdk_aac_decoder_deps="libfdk_aac"
1949 libfdk_aac_encoder_deps="libfdk_aac"
1950 libfdk_aac_encoder_select="audio_frame_queue"
1951 libgsm_decoder_deps="libgsm"
1952 libgsm_encoder_deps="libgsm"
1953 libgsm_ms_decoder_deps="libgsm"
1954 libgsm_ms_encoder_deps="libgsm"
1955 libilbc_decoder_deps="libilbc"
1956 libilbc_encoder_deps="libilbc"
1957 libmp3lame_encoder_deps="libmp3lame"
1958 libmp3lame_encoder_select="audio_frame_queue"
1959 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1960 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1961 libopencore_amrnb_encoder_select="audio_frame_queue"
1962 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1963 libopenjpeg_decoder_deps="libopenjpeg"
1964 libopenjpeg_encoder_deps="libopenjpeg"
1965 libopus_decoder_deps="libopus"
1966 libopus_encoder_deps="libopus"
1967 libopus_encoder_select="audio_frame_queue"
1968 libschroedinger_decoder_deps="libschroedinger"
1969 libschroedinger_encoder_deps="libschroedinger"
1970 libspeex_decoder_deps="libspeex"
1971 libspeex_encoder_deps="libspeex"
1972 libspeex_encoder_select="audio_frame_queue"
1973 libtheora_encoder_deps="libtheora"
1974 libtwolame_encoder_deps="libtwolame"
1975 libvo_aacenc_encoder_deps="libvo_aacenc"
1976 libvo_aacenc_encoder_select="audio_frame_queue"
1977 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1978 libvorbis_encoder_deps="libvorbis"
1979 libvorbis_encoder_select="audio_frame_queue"
1980 libvpx_vp8_decoder_deps="libvpx"
1981 libvpx_vp8_encoder_deps="libvpx"
1982 libvpx_vp9_decoder_deps="libvpx"
1983 libvpx_vp9_encoder_deps="libvpx"
1984 libwavpack_encoder_deps="libwavpack"
1985 libwebp_encoder_deps="libwebp"
1986 libx264_encoder_deps="libx264"
1987 libx265_encoder_deps="libx265"
1988 libxavs_encoder_deps="libxavs"
1989 libxvid_encoder_deps="libxvid"
1990
1991 # demuxers / muxers
1992 ac3_demuxer_select="ac3_parser"
1993 asf_demuxer_select="riffdec"
1994 asf_muxer_select="riffenc"
1995 asf_stream_muxer_select="asf_muxer"
1996 avi_demuxer_select="riffdec"
1997 avi_muxer_select="riffenc"
1998 avisynth_demuxer_deps="avisynth"
1999 avisynth_demuxer_select="riffdec"
2000 caf_demuxer_select="riffdec"
2001 dirac_demuxer_select="dirac_parser"
2002 dxa_demuxer_select="riffdec"
2003 eac3_demuxer_select="ac3_parser"
2004 f4v_muxer_select="mov_muxer"
2005 flac_demuxer_select="flac_parser"
2006 hds_muxer_select="flv_muxer"
2007 hls_muxer_select="mpegts_muxer"
2008 ipod_muxer_select="mov_muxer"
2009 ismv_muxer_select="mov_muxer"
2010 matroska_audio_muxer_select="matroska_muxer"
2011 matroska_demuxer_select="riffdec"
2012 matroska_demuxer_suggest="bzlib lzo zlib"
2013 matroska_muxer_select="riffenc"
2014 mmf_muxer_select="riffenc"
2015 mov_demuxer_select="riffdec"
2016 mov_demuxer_suggest="zlib"
2017 mov_muxer_select="riffenc rtpenc_chain"
2018 mp3_demuxer_select="mpegaudio_parser"
2019 mp4_muxer_select="mov_muxer"
2020 mpegts_muxer_select="adts_muxer latm_muxer"
2021 mpegtsraw_demuxer_select="mpegts_demuxer"
2022 mxf_d10_muxer_select="mxf_muxer"
2023 nut_muxer_select="riffenc"
2024 nuv_demuxer_select="riffdec"
2025 ogg_demuxer_select="golomb"
2026 psp_muxer_select="mov_muxer"
2027 rtp_demuxer_select="sdp_demuxer"
2028 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2029 rtsp_demuxer_select="http_protocol rtpdec"
2030 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2031 sap_demuxer_select="sdp_demuxer"
2032 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2033 sdp_demuxer_select="rtpdec"
2034 smoothstreaming_muxer_select="ismv_muxer"
2035 spdif_muxer_select="aac_parser"
2036 tak_demuxer_select="tak_parser"
2037 tg2_muxer_select="mov_muxer"
2038 tgp_muxer_select="mov_muxer"
2039 w64_demuxer_select="wav_demuxer"
2040 wav_demuxer_select="riffdec"
2041 wav_muxer_select="riffenc"
2042 webm_muxer_select="riffenc"
2043 wtv_demuxer_select="riffdec"
2044 xmv_demuxer_select="riffdec"
2045 xwma_demuxer_select="riffdec"
2046
2047 # indevs / outdevs
2048 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2049 alsa_outdev_deps="alsa_asoundlib_h"
2050 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2051 dv1394_indev_deps="dv1394"
2052 dv1394_indev_select="dv_demuxer"
2053 fbdev_indev_deps="linux_fb_h"
2054 jack_indev_deps="jack_jack_h pthreads"
2055 libcdio_indev_deps="libcdio"
2056 libdc1394_indev_deps="libdc1394"
2057 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2058 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2059 pulse_indev_deps="libpulse"
2060 sndio_indev_deps="sndio_h"
2061 sndio_outdev_deps="sndio_h"
2062 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2063 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2064 vfwcap_indev_extralibs="-lavicap32"
2065 x11grab_indev_deps="x11grab XShmCreateImage"
2066
2067 # protocols
2068 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2069 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2070 ffrtmpcrypt_protocol_select="tcp_protocol"
2071 ffrtmphttp_protocol_deps="!librtmp_protocol"
2072 ffrtmphttp_protocol_select="http_protocol"
2073 gopher_protocol_select="network"
2074 http_protocol_select="tcp_protocol"
2075 httpproxy_protocol_select="tcp_protocol"
2076 https_protocol_select="tls_protocol"
2077 librtmp_protocol_deps="librtmp"
2078 librtmpe_protocol_deps="librtmp"
2079 librtmps_protocol_deps="librtmp"
2080 librtmpt_protocol_deps="librtmp"
2081 librtmpte_protocol_deps="librtmp"
2082 mmsh_protocol_select="http_protocol"
2083 mmst_protocol_select="network"
2084 rtmp_protocol_deps="!librtmp_protocol"
2085 rtmp_protocol_select="tcp_protocol"
2086 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2087 rtmps_protocol_deps="!librtmp_protocol"
2088 rtmps_protocol_select="tls_protocol"
2089 rtmpt_protocol_select="ffrtmphttp_protocol"
2090 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2091 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2092 rtp_protocol_select="udp_protocol"
2093 sctp_protocol_deps="struct_sctp_event_subscribe"
2094 sctp_protocol_select="network"
2095 srtp_protocol_select="rtp_protocol"
2096 tcp_protocol_select="network"
2097 tls_protocol_deps_any="openssl gnutls"
2098 tls_protocol_select="tcp_protocol"
2099 udp_protocol_select="network"
2100 unix_protocol_deps="sys_un_h"
2101 unix_protocol_select="network"
2102
2103 # filters
2104 blackframe_filter_deps="gpl"
2105 boxblur_filter_deps="gpl"
2106 bs2b_filter_deps="libbs2b"
2107 cropdetect_filter_deps="gpl"
2108 delogo_filter_deps="gpl"
2109 drawtext_filter_deps="libfreetype"
2110 frei0r_filter_deps="frei0r dlopen"
2111 frei0r_filter_extralibs='$ldl'
2112 frei0r_src_filter_deps="frei0r dlopen"
2113 frei0r_src_filter_extralibs='$ldl'
2114 hqdn3d_filter_deps="gpl"
2115 interlace_filter_deps="gpl"
2116 ocv_filter_deps="libopencv"
2117 resample_filter_deps="avresample"
2118 scale_filter_deps="swscale"
2119
2120 # examples
2121 avcodec_example_deps="avcodec avutil"
2122 filter_audio_example_deps="avfilter avutil"
2123 metadata_example_deps="avformat avutil"
2124 output_example_deps="avcodec avformat avutil swscale"
2125 transcode_aac_example_deps="avcodec avformat avresample"
2126
2127 # libraries, in linking order
2128 avcodec_deps="avutil"
2129 avdevice_deps="avformat avcodec avutil"
2130 avfilter_deps="avutil"
2131 avformat_deps="avcodec avutil"
2132 avresample_deps="avutil"
2133 swscale_deps="avutil"
2134
2135 # programs
2136 avconv_deps="avcodec avfilter avformat avresample swscale"
2137 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2138 fps_filter null_filter resample_filter scale_filter
2139 setpts_filter trim_filter"
2140 avplay_deps="avcodec avformat avresample swscale sdl"
2141 avplay_libs='$sdl_libs'
2142 avplay_select="rdft"
2143 avprobe_deps="avcodec avformat"
2144
2145 # documentation
2146 pod2man_deps="doc"
2147 texi2html_deps="doc"
2148
2149 # default parameters
2150
2151 logfile="config.log"
2152
2153 # installation paths
2154 prefix_default="/usr/local"
2155 bindir_default='${prefix}/bin'
2156 datadir_default='${prefix}/share/avconv'
2157 docdir_default='${prefix}/share/doc/libav'
2158 incdir_default='${prefix}/include'
2159 libdir_default='${prefix}/lib'
2160 mandir_default='${prefix}/share/man'
2161 shlibdir_default="$libdir_default"
2162
2163 # toolchain
2164 ar_default="ar"
2165 cc_default="gcc"
2166 host_cc_default="gcc"
2167 cp_f="cp -f"
2168 ln_s="ln -s -f"
2169 nm_default="nm -g"
2170 objformat="elf"
2171 pkg_config_default=pkg-config
2172 ranlib="ranlib"
2173 strip="strip"
2174 yasmexe="yasm"
2175
2176 nogas=":"
2177
2178 # machine
2179 arch_default=$(uname -m)
2180 cpu="generic"
2181
2182 # OS
2183 target_os_default=$(tolower $(uname -s))
2184 host_os=$target_os_default
2185
2186 # configurable options
2187 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2188
2189 enable asm
2190 enable debug
2191 enable doc
2192 enable optimizations
2193 enable safe_bitstream_reader
2194 enable static
2195 enable swscale_alpha
2196
2197 # By default, enable only those hwaccels that have no external dependencies.
2198 enable dxva2 vdpau
2199
2200 # build settings
2201 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2202 LIBPREF="lib"
2203 LIBSUF=".a"
2204 FULLNAME='$(NAME)$(BUILDSUF)'
2205 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2206 SLIBPREF="lib"
2207 SLIBSUF=".so"
2208 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2209 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2210 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2211 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2212 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2213 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2214
2215 asflags_filter=echo
2216 cflags_filter=echo
2217 ldflags_filter=echo
2218
2219 AS_C='-c'
2220 AS_O='-o $@'
2221 CC_C='-c'
2222 CC_E='-E -o $@'
2223 CC_O='-o $@'
2224 LD_O='-o $@'
2225 LD_LIB='-l%'
2226 LD_PATH='-L'
2227 HOSTCC_C='-c'
2228 HOSTCC_E='-E -o $@'
2229 HOSTCC_O='-o $@'
2230 HOSTLD_O='-o $@'
2231
2232 host_libs='-lm'
2233 host_cflags_filter=echo
2234 host_ldflags_filter=echo
2235
2236 target_path='$(CURDIR)'
2237
2238 # since the object filename is not given with the -MM flag, the compiler
2239 # is only able to print the basename, and we must add the path ourselves
2240 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2241 DEPFLAGS='-MM'
2242
2243 # find source path
2244 if test -f configure; then
2245 source_path=.
2246 else
2247 source_path=$(cd $(dirname "$0"); pwd)
2248 echo "$source_path" | grep -q '[[:blank:]]' &&
2249 die "Out of tree builds are impossible with whitespace in source path."
2250 test -e "$source_path/config.h" &&
2251 die "Out of tree builds are impossible with config.h in source dir."
2252 fi
2253
2254 for v in "$@"; do
2255 r=${v#*=}
2256 l=${v%"$r"}
2257 r=$(sh_quote "$r")
2258 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2259 done
2260
2261 find_things(){
2262 thing=$1
2263 pattern=$2
2264 file=$source_path/$3
2265 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2266 }
2267
2268 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2269 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2270 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2271 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2272 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2273 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2274 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2275 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2276 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2277 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2278 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2279
2280 ALL_COMPONENTS="
2281 $BSF_LIST
2282 $DECODER_LIST
2283 $DEMUXER_LIST
2284 $ENCODER_LIST
2285 $FILTER_LIST
2286 $HWACCEL_LIST
2287 $INDEV_LIST
2288 $MUXER_LIST
2289 $OUTDEV_LIST
2290 $PARSER_LIST
2291 $PROTOCOL_LIST
2292 "
2293
2294 for n in $COMPONENT_LIST; do
2295 v=$(toupper ${n%s})_LIST
2296 eval enable \$$v
2297 eval ${n}_if_any="\$$v"
2298 done
2299
2300 enable $ARCH_EXT_LIST
2301
2302 die_unknown(){
2303 echo "Unknown option \"$1\"."
2304 echo "See $0 --help for available options."
2305 exit 1
2306 }
2307
2308 print_3_columns() {
2309 cat | tr ' ' '\n' | sort | pr -r -3 -t
2310 }
2311
2312 show_list() {
2313 suffix=_$1
2314 shift
2315 echo $* | sed s/$suffix//g | print_3_columns
2316 exit 0
2317 }
2318
2319 rand_list(){
2320 IFS=', '
2321 set -- $*
2322 unset IFS
2323 for thing; do
2324 comp=${thing%:*}
2325 prob=${thing#$comp}
2326 prob=${prob#:}
2327 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2328 echo "prob ${prob:-0.5}"
2329 printf '%s\n' $comp
2330 done
2331 }
2332
2333 do_random(){
2334 action=$1
2335 shift
2336 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2337 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2338 }
2339
2340 for opt do
2341 optval="${opt#*=}"
2342 case "$opt" in
2343 --extra-ldflags=*)
2344 add_ldflags $optval
2345 ;;
2346 --extra-libs=*)
2347 add_extralibs $optval
2348 ;;
2349 --disable-devices)
2350 disable $INDEV_LIST $OUTDEV_LIST
2351 ;;
2352 --enable-debug=*)
2353 debuglevel="$optval"
2354 ;;
2355 --disable-programs)
2356 disable $PROGRAM_LIST
2357 ;;
2358 --disable-everything)
2359 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2360 ;;
2361 --disable-all)
2362 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2363 disable $LIBRARY_LIST $PROGRAM_LIST doc
2364 ;;
2365 --enable-random|--disable-random)
2366 action=${opt%%-random}
2367 do_random ${action#--} $COMPONENT_LIST
2368 ;;
2369 --enable-random=*|--disable-random=*)
2370 action=${opt%%-random=*}
2371 do_random ${action#--} $optval
2372 ;;
2373 --enable-*=*|--disable-*=*)
2374 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2375 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2376 eval list=\$$(toupper $thing)_LIST
2377 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2378 $action $(filter "$name" $list)
2379 ;;
2380 --enable-avserver|--disable-avserver*)
2381 warn "avserver has been removed, the ${opt} option is only"\
2382 "provided for compatibility and will be removed in the future"
2383 ;;
2384 --enable-?*|--disable-?*)
2385 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2386 if is_in $option $COMPONENT_LIST; then
2387 test $action = disable && action=unset
2388 eval $action \$$(toupper ${option%s})_LIST
2389 elif is_in $option $CMDLINE_SELECT; then
2390 $action $option
2391 else
2392 die_unknown $opt
2393 fi
2394 ;;
2395 --list-*)
2396 NAME="${opt#--list-}"
2397 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2398 NAME=${NAME%s}
2399 eval show_list $NAME \$$(toupper $NAME)_LIST
2400 ;;
2401 --help|-h) show_help
2402 ;;
2403 *)
2404 optname="${opt%%=*}"
2405 optname="${optname#--}"
2406 optname=$(echo "$optname" | sed 's/-/_/g')
2407 if is_in $optname $CMDLINE_SET; then
2408 eval $optname='$optval'
2409 elif is_in $optname $CMDLINE_APPEND; then
2410 append $optname "$optval"
2411 else
2412 die_unknown $opt
2413 fi
2414 ;;
2415 esac
2416 done
2417
2418 disabled logging && logfile=/dev/null
2419
2420 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2421 set >> $logfile
2422
2423 test -n "$cross_prefix" && enable cross_compile
2424
2425 if enabled cross_compile; then
2426 test -n "$arch" && test -n "$target_os" ||
2427 die "Must specify target arch and OS when cross-compiling"
2428 fi
2429
2430 ar_default="${cross_prefix}${ar_default}"
2431 cc_default="${cross_prefix}${cc_default}"
2432 nm_default="${cross_prefix}${nm_default}"
2433 pkg_config_default="${cross_prefix}${pkg_config_default}"
2434 ranlib="${cross_prefix}${ranlib}"
2435 strip="${cross_prefix}${strip}"
2436
2437 sysinclude_default="${sysroot}/usr/include"
2438
2439 case "$toolchain" in
2440 clang-asan)
2441 cc_default="clang"
2442 add_cflags -fsanitize=address
2443 add_ldflags -fsanitize=address
2444 ;;
2445 clang-tsan)
2446 cc_default="clang"
2447 add_cflags -fsanitize=thread -pie
2448 add_ldflags -fsanitize=thread -pie
2449 ;;
2450 clang-usan)
2451 cc_default="clang"
2452 add_cflags -fsanitize=undefined -O1
2453 add_ldflags -fsanitize=undefined
2454 ;;
2455 gcc-asan)
2456 cc_default="gcc"
2457 add_cflags -fsanitize=address
2458 add_ldflags -fsanitize=address
2459 ;;
2460 gcc-tsan)
2461 cc_default="gcc"
2462 add_cflags -fsanitize=thread -pie -fPIC
2463 add_ldflags -fsanitize=thread -pie -fPIC
2464 ;;
2465 gcc-usan)
2466 cc_default="gcc"
2467 add_cflags -fsanitize=undefined
2468 add_ldflags -fsanitize=undefined
2469 ;;
2470 valgrind-massif)
2471 target_exec_default="valgrind"
2472 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2473 ;;
2474 valgrind-memcheck)
2475 target_exec_default="valgrind"
2476 target_exec_args="--track-origins=yes --leak-check=full"
2477 ;;
2478 msvc)
2479 # Check whether the current MSVC version needs the C99 converter.
2480 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2481 # support enough of C99 to build libav. Default to the new
2482 # behaviour if the regexp was unable to match anything, since this
2483 # successfully parses the version number of existing supported
2484 # versions that require the converter (MSVC 2010 and 2012).
2485 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2486 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2487 cc_default="cl"
2488 else
2489 cc_default="c99wrap cl"
2490 fi
2491 ld_default="link"
2492 nm_default="dumpbin -symbols"
2493 ar_default="lib"
2494 target_os_default="win32"
2495 # Use a relative path for TMPDIR. This makes sure all the
2496 # ffconf temp files are written with a relative path, avoiding
2497 # issues with msys/win32 path conversion for MSVC parameters
2498 # such as -Fo<file> or -out:<file>.
2499 TMPDIR=.
2500 ;;
2501 icl)
2502 cc_default="icl"
2503 ld_default="xilink"
2504 nm_default="dumpbin -symbols"
2505 ar_default="xilib"
2506 target_os_default="win32"
2507 TMPDIR=.
2508 ;;
2509 gcov)
2510 add_cflags -fprofile-arcs -ftest-coverage
2511 add_ldflags -fprofile-arcs -ftest-coverage
2512 ;;
2513 hardened)
2514 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2515 add_ldflags -Wl,-z,relro -Wl,-z,now
2516 ;;
2517 ?*)
2518 die "Unknown toolchain $toolchain"
2519 ;;
2520 esac
2521
2522 set_default arch cc pkg_config sysinclude target_exec target_os
2523 enabled cross_compile || host_cc_default=$cc
2524 set_default host_cc
2525
2526 if ! $pkg_config --version >/dev/null 2>&1; then
2527 warn "$pkg_config not found, library detection may fail."
2528 pkg_config=false
2529 fi
2530
2531 exesuf() {
2532 case $1 in
2533 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2534 esac
2535 }
2536
2537 EXESUF=$(exesuf $target_os)
2538 HOSTEXESUF=$(exesuf $host_os)
2539
2540 # set temporary file name
2541 : ${TMPDIR:=$TEMPDIR}
2542 : ${TMPDIR:=$TMP}
2543 : ${TMPDIR:=/tmp}
2544
2545 if ! check_cmd mktemp -u XXXXXX; then
2546 # simple replacement for missing mktemp
2547 # NOT SAFE FOR GENERAL USE
2548 mktemp(){
2549 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2550 }
2551 fi
2552
2553 tmpfile(){
2554 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2555 (set -C; exec > $tmp) 2>/dev/null ||
2556 die "Unable to create temporary file in $TMPDIR."
2557 append TMPFILES $tmp
2558 eval $1=$tmp
2559 }
2560
2561 trap 'rm -f -- $TMPFILES' EXIT
2562
2563 tmpfile TMPASM .asm
2564 tmpfile TMPC .c
2565 tmpfile TMPE $EXESUF
2566 tmpfile TMPH .h
2567 tmpfile TMPO .o
2568 tmpfile TMPS .S
2569 tmpfile TMPSH .sh
2570 tmpfile TMPV .ver
2571
2572 unset -f mktemp
2573
2574 chmod +x $TMPE
2575
2576 # make sure we can execute files in $TMPDIR
2577 cat > $TMPSH 2>> $logfile <<EOF
2578 #! /bin/sh
2579 EOF
2580 chmod +x $TMPSH >> $logfile 2>&1
2581 if ! $TMPSH >> $logfile 2>&1; then
2582 cat <<EOF
2583 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2584 variable to another directory and make sure that it is not mounted noexec.
2585 EOF
2586 die "Sanity test failed."
2587 fi
2588
2589 ccc_flags(){
2590 for flag; do
2591 case $flag in
2592 -std=c99) echo -c99 ;;
2593 -mcpu=*) echo -arch ${flag#*=} ;;
2594 -mieee) echo -ieee ;;
2595 -O*|-fast) echo $flag ;;
2596 -fno-math-errno) echo -assume nomath_errno ;;
2597 -g) echo -g3 ;;
2598 -Wall) echo -msg_enable level2 ;;
2599 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2600 -Wl,*) echo $flag ;;
2601 -f*|-W*) ;;
2602 *) echo $flag ;;
2603 esac
2604 done
2605 }
2606
2607 cparser_flags(){
2608 for flag; do
2609 case $flag in
2610 -Wno-switch) echo -Wno-switch-enum ;;
2611 -Wno-format-zero-length) ;;
2612 -Wdisabled-optimization) ;;
2613 -Wno-pointer-sign) echo -Wno-other ;;
2614 *) echo $flag ;;
2615 esac
2616 done
2617 }
2618
2619 msvc_common_flags(){
2620 for flag; do
2621 case $flag in
2622 # In addition to specifying certain flags under the compiler
2623 # specific filters, they must be specified here as well or else the
2624 # generic catch all at the bottom will print the original flag.
2625 -Wall) ;;
2626 -std=c99) ;;
2627 # Common flags
2628 -fomit-frame-pointer) ;;
2629 -g) echo -Z7 ;;
2630 -fno-math-errno) ;;
2631 -fno-common) ;;
2632 -fno-signed-zeros) ;;
2633 -fPIC) ;;
2634 -mthumb) ;;
2635 -march=*) ;;
2636 -lz) echo zlib.lib ;;
2637 -lavifil32) echo vfw32.lib ;;
2638 -lavicap32) echo vfw32.lib user32.lib ;;
2639 -l*) echo ${flag#-l}.lib ;;
2640 *) echo $flag ;;
2641 esac
2642 done
2643 }
2644
2645 msvc_flags(){
2646 msvc_common_flags "$@"
2647 for flag; do
2648 case $flag in
2649 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2650 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2651 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2652 -wd4273 ;;
2653 esac
2654 done
2655 }
2656
2657 icl_flags(){
2658 msvc_common_flags "$@"
2659 for flag; do
2660 case $flag in
2661 # Despite what Intel's documentation says -Wall, which is supported
2662 # on Windows, does enable remarks so disable them here.
2663 -Wall) echo $flag -Qdiag-disable:remark ;;
2664 -std=c99) echo -Qstd=c99 ;;
2665 esac
2666 done
2667 }
2668
2669 pgi_flags(){
2670 for flag; do
2671 case $flag in
2672 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2673 -fomit-frame-pointer) echo -Mnoframe ;;
2674 -g) echo -gopt ;;
2675 *) echo $flag ;;
2676 esac
2677 done
2678 }
2679
2680 suncc_flags(){
2681 for flag; do
2682 case $flag in
2683 -march=*|-mcpu=*)
2684 case "${flag#*=}" in
2685 native) echo -xtarget=native ;;
2686 v9|niagara) echo -xarch=sparc ;;
2687 ultrasparc) echo -xarch=sparcvis ;;
2688 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2689 i586|pentium) echo -xchip=pentium ;;
2690 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2691 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2692 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2693 pentium4*) echo -xtarget=pentium4 ;;
2694 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2695 *-sse3) echo -xarch=sse3 ;;
2696 core2) echo -xarch=ssse3 -xchip=core2 ;;
2697 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2698 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2699 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2700 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2701 k8|opteron|athlon64|athlon-fx)
2702 echo -xarch=sse2a ;;
2703 athlon*) echo -xarch=pentium_proa ;;
2704 esac
2705 ;;
2706 -std=c99) echo -xc99 ;;
2707 -fomit-frame-pointer) echo -xregs=frameptr ;;
2708 -fPIC) echo -KPIC -xcode=pic32 ;;
2709 -W*,*) echo $flag ;;
2710 -f*-*|-W*|-mimpure-text) ;;
2711 -shared) echo -G ;;
2712 *) echo $flag ;;
2713 esac
2714 done
2715 }
2716
2717 tms470_flags(){
2718 for flag; do
2719 case $flag in
2720 -march=*|-mcpu=*)
2721 case "${flag#*=}" in
2722 armv7-a|cortex-a*) echo -mv=7a8 ;;
2723 armv7-r|cortex-r*) echo -mv=7r4 ;;
2724 armv7-m|cortex-m*) echo -mv=7m3 ;;
2725 armv6*|arm11*) echo -mv=6 ;;
2726 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2727 echo -mv=5e ;;
2728 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2729 esac
2730 ;;
2731 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2732 -mfpu=vfp) echo --float_support=vfpv2 ;;
2733 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2734 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2735 -msoft-float) echo --float_support=vfplib ;;
2736 -O[0-3]|-mf=*) echo $flag ;;
2737 -g) echo -g -mn ;;
2738 -pds=*) echo $flag ;;
2739 -D*|-I*) echo $flag ;;
2740 --gcc|--abi=*) echo $flag ;;
2741 -me) echo $flag ;;
2742 esac
2743 done
2744 }
2745
2746 probe_cc(){
2747 pfx=$1
2748 _cc=$2
2749
2750 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2751 unset _ld_o _ldflags _ld_lib _ld_path
2752 unset _depflags _DEPCMD _DEPFLAGS
2753 _flags_filter=echo
2754
2755 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2756 _type=llvm_gcc
2757 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2758 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2759 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2760 _cflags_speed='-O3'
2761 _cflags_size='-Os'
2762 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2763 _type=gcc
2764 gcc_version=$($_cc --version | head -n1)
2765 gcc_basever=$($_cc -dumpversion)
2766 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2767 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2768 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2769 if ! $_cc -dumpversion | grep -q '^2\.'; then
2770 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2771 fi
2772 _cflags_speed='-O3'
2773 _cflags_size='-Os'
2774 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2775 _type=icc
2776 _ident=$($_cc --version | head -n1)
2777 _depflags='-MMD'
2778 _cflags_speed='-O3'
2779 _cflags_size='-Os'
2780 _cflags_noopt='-O1'
2781 elif $_cc -v 2>&1 | grep -q xlc; then
2782 _type=xlc
2783 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2784 _cflags_speed='-O5'
2785 _cflags_size='-O5 -qcompact'
2786 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2787 _type=ccc
2788 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2789 _DEPFLAGS='-M'
2790 _cflags_speed='-fast'
2791 _cflags_size='-O1'
2792 _flags_filter=ccc_flags
2793 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2794 test -d "$sysroot" || die "No valid sysroot specified."
2795 _type=armcc
2796 _ident=$($_cc --vsn | head -n1 | sed 's/.*: //')
2797 armcc_conf="$PWD/armcc.conf"
2798 $_cc --arm_linux_configure \
2799 --arm_linux_config_file="$armcc_conf" \
2800 --configure_sysroot="$sysroot" \
2801 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2802 die "Error creating armcc configuration file."
2803 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2804 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2805 as_default="${cross_prefix}gcc"
2806 _depflags='-MMD'
2807 _cflags_speed='-O3'
2808 _cflags_size='-Os'
2809 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2810 _type=tms470
2811 _ident=$($_cc -version | head -n1 | tr -s ' ')
2812 _flags='--gcc --abi=eabi -me'
2813 _cc_e='-ppl -fe=$@'
2814 _cc_o='-fe=$@'
2815 _depflags='-ppa -ppd=$(@:.o=.d)'
2816 _cflags_speed='-O3 -mf=5'
2817 _cflags_size='-O3 -mf=2'
2818 _flags_filter=tms470_flags
2819 elif $_cc -v 2>&1 | grep -q clang; then
2820 _type=clang
2821 _ident=$($_cc --version | head -n1)
2822 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2823 _cflags_speed='-O3'
2824 _cflags_size='-Os'
2825 elif $_cc -V 2>&1 | grep -q Sun; then
2826 _type=suncc
2827 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2828 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2829 _DEPFLAGS='-xM1 -xc99'
2830 _ldflags='-std=c99'
2831 _cflags_speed='-O5'
2832 _cflags_size='-O5 -xspace'
2833 _flags_filter=suncc_flags
2834 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2835 _type=pathscale
2836 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2837 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2838 _cflags_speed='-O2'
2839 _cflags_size='-Os'
2840 _flags_filter='filter_out -Wdisabled-optimization'
2841 elif $_cc -v 2>&1 | grep -q Open64; then
2842 _type=open64
2843 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2844 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2845 _cflags_speed='-O2'
2846 _cflags_size='-Os'
2847 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2848 elif $_cc -V 2>&1 | grep -q Portland; then
2849 _type=pgi
2850 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2851 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2852 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2853 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2854 _cflags_noopt="-O1"
2855 _flags_filter=pgi_flags
2856 elif $_cc 2>&1 | grep -q Microsoft; then
2857 _type=msvc
2858 _ident=$($cc 2>&1 | head -n1)
2859 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2860 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2861 _cflags_speed="-O2"
2862 _cflags_size="-O1"
2863 if $_cc 2>&1 | grep -q Linker; then
2864 _ld_o='-out:$@'
2865 else
2866 _ld_o='-Fe$@'
2867 fi
2868 _cc_o='-Fo$@'
2869 _cc_e='-P -Fi$@'
2870 _flags_filter=msvc_flags
2871 _ld_lib='lib%.a'
2872 _ld_path='-libpath:'
2873 _flags='-nologo'
2874 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2875 if [ $pfx = hostcc ]; then
2876 append _cflags -Dsnprintf=_snprintf
2877 fi
2878 elif $_cc 2>&1 | grep -q Intel; then
2879 _type=icl
2880 _ident=$($cc 2>&1 | head -n1)
2881 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2882 # Not only is O3 broken on 13.x+ but it is slower on all previous
2883 # versions (tested) as well.
2884 _cflags_speed="-O2"
2885 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2886 if $_cc 2>&1 | grep -q Linker; then
2887 _ld_o='-out:$@'
2888 else
2889 _ld_o='-Fe$@'
2890 fi
2891 _cc_o='-Fo$@'
2892 _cc_e='-P'
2893 _flags_filter=icl_flags
2894 _ld_lib='lib%.a'
2895 _ld_path='-libpath:'
2896 # -Qdiag-error to make icl error when seeing certain unknown arguments
2897 _flags='-nologo -Qdiag-error:4044,10157'
2898 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2899 # with MSVC which enables it by default.
2900 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2901 if [ $pfx = hostcc ]; then
2902 append _cflags -Dsnprintf=_snprintf
2903 fi
2904 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2905 _type=cparser
2906 _ident=$($_cc --version | head -n1)
2907 _depflags='-MMD'
2908 _cflags_speed='-O4'
2909 _cflags_size='-O2'
2910 _flags_filter=cparser_flags
2911 fi
2912
2913 eval ${pfx}_type=\$_type
2914 eval ${pfx}_ident=\$_ident
2915 }
2916
2917 set_ccvars(){
2918 eval ${1}_C=\${_cc_c-\${${1}_C}}
2919 eval ${1}_E=\${_cc_e-\${${1}_E}}
2920 eval ${1}_O=\${_cc_o-\${${1}_O}}
2921
2922 if [ -n "$_depflags" ]; then
2923 eval ${1}_DEPFLAGS=\$_depflags
2924 else
2925 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2926 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2927 eval DEP${1}FLAGS=\$_flags
2928 fi
2929 }
2930
2931 probe_cc cc "$cc"
2932 cflags_filter=$_flags_filter
2933 cflags_speed=$_cflags_speed
2934 cflags_size=$_cflags_size
2935 cflags_noopt=$_cflags_noopt
2936 add_cflags $_flags $_cflags
2937 cc_ldflags=$_ldflags
2938 set_ccvars CC
2939
2940 probe_cc hostcc "$host_cc"
2941 host_cflags_filter=$_flags_filter
2942 add_host_cflags $_flags $_cflags
2943 set_ccvars HOSTCC
2944
2945 test -n "$cc_type" && enable $cc_type ||
2946 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2947
2948 : ${as_default:=$cc}
2949 : ${dep_cc_default:=$cc}
2950 : ${ld_default:=$cc}
2951 : ${host_ld_default:=$host_cc}
2952 set_default ar as dep_cc ld host_ld
2953
2954 probe_cc as "$as"
2955 asflags_filter=$_flags_filter
2956 add_asflags $_flags $_cflags
2957 set_ccvars AS
2958
2959 probe_cc ld "$ld"
2960 ldflags_filter=$_flags_filter
2961 add_ldflags $_flags $_ldflags
2962 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2963 LD_O=${_ld_o-$LD_O}
2964 LD_LIB=${_ld_lib-$LD_LIB}
2965 LD_PATH=${_ld_path-$LD_PATH}
2966
2967 probe_cc hostld "$host_ld"
2968 host_ldflags_filter=$_flags_filter
2969 add_host_ldflags $_flags $_ldflags
2970 HOSTLD_O=${_ld_o-$HOSTLD_O}
2971
2972 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2973 probe_cc depcc "$dep_cc"
2974 CCDEP=${_DEPCMD:-$DEPCMD}
2975 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2976 DEPCCFLAGS=$_flags
2977 fi
2978
2979 if $ar 2>&1 | grep -q Microsoft; then
2980 arflags="-nologo"
2981 ar_o='-out:$@'
2982 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2983 arflags="rq"
2984 ar_o='$@'
2985 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2986 arflags='-Xany -r -c'
2987 ar_o='$@'
2988 else
2989 arflags="rc"
2990 ar_o='$@'
2991 fi
2992
2993 add_cflags $extra_cflags
2994 add_asflags $extra_cflags
2995
2996 if test -n "$sysroot"; then
2997 case "$cc_type" in
2998 gcc|llvm_gcc|clang)
2999 add_cppflags --sysroot="$sysroot"
3000 add_ldflags --sysroot="$sysroot"
3001 ;;
3002 tms470)
3003 add_cppflags -I"$sysinclude"
3004 add_ldflags --sysroot="$sysroot"
3005 ;;
3006 esac
3007 fi
3008
3009 if test "$cpu" = host; then
3010 enabled cross_compile &&
3011 die "--cpu=host makes no sense when cross-compiling."
3012
3013 case "$cc_type" in
3014 gcc|llvm_gcc)
3015 check_native(){
3016 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3017 sed -n "/cc1.*$1=/{
3018 s/.*$1=\\([^ ]*\\).*/\\1/
3019 p
3020 q
3021 }" $TMPE
3022 }
3023 cpu=$(check_native -march || check_native -mcpu)
3024 ;;
3025 esac
3026
3027 test "${cpu:-host}" = host &&
3028 die "--cpu=host not supported with compiler $cc"
3029 fi
3030
3031 # Deal with common $arch aliases
3032 case "$arch" in
3033 aarch64|arm64)
3034 arch="aarch64"
3035 ;;
3036 arm*)
3037 arch="arm"
3038 ;;
3039 mips*|IP*)
3040 arch="mips"
3041 ;;
3042 parisc*|hppa*)
3043 arch="parisc"
3044 ;;
3045 "Power Macintosh"|ppc*|powerpc*)
3046 arch="ppc"
3047 ;;
3048 s390|s390x)
3049 arch="s390"
3050 ;;
3051 sh4|sh)
3052 arch="sh4"
3053 ;;
3054 sun4u|sparc*)
3055 arch="sparc"
3056 ;;
3057 tilegx|tile-gx)
3058 arch="tilegx"
3059 ;;
3060 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3061 arch="x86"
3062 ;;
3063 esac
3064
3065 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3066 enable $arch
3067
3068 # Add processor-specific flags
3069 if enabled aarch64; then
3070
3071 case $cpu in
3072 armv*)
3073 cpuflags="-march=$cpu"
3074 ;;
3075 *)
3076 cpuflags="-mcpu=$cpu"
3077 ;;
3078 esac
3079
3080 elif enabled alpha; then
3081
3082 cpuflags="-mcpu=$cpu"
3083
3084 elif enabled arm; then
3085
3086 check_arm_arch() {
3087 check_cpp_condition stddef.h \
3088 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3089 $cpuflags
3090 }
3091
3092 probe_arm_arch() {
3093 if check_arm_arch 4; then echo armv4;
3094 elif check_arm_arch 4T; then echo armv4t;
3095 elif check_arm_arch 5; then echo armv5;
3096 elif check_arm_arch 5E; then echo armv5e;
3097 elif check_arm_arch 5T; then echo armv5t;
3098 elif check_arm_arch 5TE; then echo armv5te;
3099 elif check_arm_arch 5TEJ; then echo armv5te;
3100 elif check_arm_arch 6; then echo armv6;
3101 elif check_arm_arch 6J; then echo armv6j;
3102 elif check_arm_arch 6K; then echo armv6k;
3103 elif check_arm_arch 6Z; then echo armv6z;
3104 elif check_arm_arch 6ZK; then echo armv6zk;
3105 elif check_arm_arch 6T2; then echo armv6t2;
3106 elif check_arm_arch 7; then echo armv7;
3107 elif check_arm_arch 7A 7_A; then echo armv7-a;
3108 elif check_arm_arch 7R 7_R; then echo armv7-r;
3109 elif check_arm_arch 7M 7_M; then echo armv7-m;
3110 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3111 elif check_arm_arch 8A 8_A; then echo armv8-a;
3112 fi
3113 }
3114
3115 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3116
3117 case $cpu in
3118 armv*)
3119 cpuflags="-march=$cpu"
3120 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3121 ;;
3122 *)
3123 cpuflags="-mcpu=$cpu"
3124 case $cpu in
3125 cortex-a*) subarch=armv7a ;;
3126 cortex-r*) subarch=armv7r ;;
3127 cortex-m*) enable thumb; subarch=armv7m ;;
3128 arm11*) subarch=armv6 ;;
3129 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3130 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3131 *) subarch=$(probe_arm_arch) ;;
3132 esac
3133 ;;
3134 esac
3135
3136 case "$subarch" in
3137 armv5t*) enable fast_clz ;;
3138 armv[6-8]*) enable fast_clz fast_unaligned ;;
3139 esac
3140
3141 elif enabled avr32; then
3142
3143 case $cpu in
3144 ap7[02]0[0-2])
3145 subarch="avr32_ap"
3146 cpuflags="-mpart=$cpu"
3147 ;;
3148 ap)
3149 subarch="avr32_ap"
3150 cpuflags="-march=$cpu"
3151 ;;
3152 uc3[ab]*)
3153 subarch="avr32_uc"
3154 cpuflags="-mcpu=$cpu"
3155 ;;
3156 uc)
3157 subarch="avr32_uc"
3158 cpuflags="-march=$cpu"
3159 ;;
3160 esac
3161
3162 elif enabled bfin; then
3163
3164 cpuflags="-mcpu=$cpu"
3165
3166 elif enabled mips; then
3167
3168 cpuflags="-march=$cpu"
3169
3170 elif enabled ppc; then
3171
3172 disable ldbrx
3173
3174 case $(tolower $cpu) in
3175 601|ppc601|powerpc601)
3176 cpuflags="-mcpu=601"
3177 disable altivec
3178 ;;
3179 603*|ppc603*|powerpc603*)
3180 cpuflags="-mcpu=603"
3181 disable altivec
3182 ;;
3183 604*|ppc604*|powerpc604*)
3184 cpuflags="-mcpu=604"
3185 disable altivec
3186 ;;
3187 g3|75*|ppc75*|powerpc75*)
3188 cpuflags="-mcpu=750"
3189 disable altivec
3190 ;;
3191 g4|745*|ppc745*|powerpc745*)
3192 cpuflags="-mcpu=7450"
3193 ;;
3194 74*|ppc74*|powerpc74*)
3195 cpuflags="-mcpu=7400"
3196 ;;
3197 g5|970|ppc970|powerpc970)
3198 cpuflags="-mcpu=970"
3199 ;;
3200 power[3-7]*)
3201 cpuflags="-mcpu=$cpu"
3202 ;;
3203 cell)
3204 cpuflags="-mcpu=cell"
3205 enable ldbrx
3206 ;;
3207 e500mc)
3208 cpuflags="-mcpu=e500mc"
3209 disable altivec
3210 ;;
3211 e500v2)
3212 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3213 disable altivec
3214 disable dcbzl
3215 ;;
3216 e500)
3217 cpuflags="-mcpu=8540 -mhard-float"
3218 disable altivec
3219 disable dcbzl
3220 ;;
3221 esac
3222
3223 elif enabled sparc; then
3224
3225 case $cpu in
3226 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3227 cpuflags="-mcpu=$cpu"
3228 ;;
3229 ultrasparc*|niagara[234])
3230 cpuflags="-mcpu=$cpu"
3231 ;;
3232 esac
3233
3234 elif enabled x86; then
3235
3236 case $cpu in
3237 i[345]86|pentium)
3238 cpuflags="-march=$cpu"
3239 disable mmx
3240 ;;
3241 # targets that do NOT support nopl and conditional mov (cmov)
3242 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3243 cpuflags="-march=$cpu"
3244 disable i686
3245 ;;
3246 # targets that do support nopl and conditional mov (cmov)
3247 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3248 cpuflags="-march=$cpu"
3249 enable i686
3250 enable fast_cmov
3251 ;;
3252 # targets that do support conditional mov but on which it's slow
3253 pentium4|pentium4m|prescott|nocona)
3254 cpuflags="-march=$cpu"
3255 enable i686
3256 disable fast_cmov
3257 ;;
3258 esac
3259
3260 fi
3261
3262 if [ "$cpu" != generic ]; then
3263 add_cflags $cpuflags
3264 add_asflags $cpuflags
3265 fi
3266
3267 # compiler sanity check
3268 check_exec <<EOF
3269 int main(void){ return 0; }
3270 EOF
3271 if test "$?" != 0; then
3272 echo "$cc is unable to create an executable file."
3273 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3274 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3275 echo "Only do this if you know what cross compiling means."
3276 fi
3277 die "C compiler test failed."
3278 fi
3279
3280 add_cppflags -D_ISOC99_SOURCE
3281 check_cflags -std=c99
3282 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3283 #include <stdlib.h>
3284 EOF
3285 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3286 #include <stdlib.h>
3287 EOF
3288
3289 add_host_cppflags -D_ISOC99_SOURCE
3290 check_host_cflags -std=c99
3291 check_host_cflags -Wall
3292 check_host_cflags -O3
3293
3294 check_64bit(){
3295 arch32=$1
3296 arch64=$2
3297 expr=$3
3298 check_code cc "" "int test[2*($expr) - 1]" &&
3299 subarch=$arch64 || subarch=$arch32
3300 }
3301
3302 case "$arch" in
3303 aarch64|alpha|ia64)
3304 spic=$shared
3305 ;;
3306 mips)
3307 check_64bit mips mips64 '_MIPS_SIM > 1'
3308 spic=$shared
3309 ;;
3310 parisc)
3311 check_64bit parisc parisc64 'sizeof(void *) > 4'
3312 spic=$shared
3313 ;;
3314 ppc)
3315 check_64bit ppc ppc64 'sizeof(void *) > 4'
3316 spic=$shared
3317 ;;
3318 s390)
3319 check_64bit s390 s390x 'sizeof(void *) > 4'
3320 spic=$shared
3321 ;;
3322 sparc)
3323 check_64bit sparc sparc64 'sizeof(void *) > 4'
3324 spic=$shared
3325 ;;
3326 x86)
3327 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3328 if test "$subarch" = "x86_64"; then
3329 spic=$shared
3330 fi
3331 ;;
3332 esac
3333
3334 enable $subarch
3335 enabled spic && enable_weak pic
3336
3337 # OS specific
3338 case $target_os in
3339 aix)
3340 SHFLAGS=-shared
3341 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3342 enabled shared && add_ldflags -Wl,-brtl
3343 ;;
3344 android)
3345 disable symver
3346 SLIB_INSTALL_NAME='$(SLIBNAME)'
3347 SLIB_INSTALL_LINKS=
3348 # soname not set on purpose
3349 SHFLAGS=-shared
3350 ;;
3351 haiku)
3352 prefix_default="/boot/common"
3353 network_extralibs="-lnetwork"
3354 host_libs=
3355 ;;
3356 sunos)
3357 SHFLAGS='-shared -Wl,-h,$$(@F)'
3358 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3359 network_extralibs="-lsocket -lnsl"
3360 # When using suncc to build, the Solaris linker will mark
3361 # an executable with each instruction set encountered by
3362 # the Solaris assembler. As our libraries contain their own
3363 # guards for processor-specific code, instead suppress
3364 # generation of the HWCAPS ELF section on Solaris x86 only.
3365 enabled_all suncc x86 &&
3366 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3367 add_ldflags -Wl,-M,mapfile
3368 nm_default='nm -P -g'
3369 ;;
3370 netbsd)
3371 disable symver
3372 oss_indev_extralibs="-lossaudio"
3373 oss_outdev_extralibs="-lossaudio"
3374 ;;
3375 openbsd|bitrig)
3376 disable symver
3377 SHFLAGS='-shared'
3378 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3379 SLIB_INSTALL_LINKS=
3380 oss_indev_extralibs="-lossaudio"
3381 oss_outdev_extralibs="-lossaudio"
3382 ;;
3383 dragonfly)
3384 disable symver
3385 ;;
3386 freebsd)
3387 ;;
3388 bsd/os)
3389 add_extralibs -lpoll -lgnugetopt
3390 ;;
3391 darwin)
3392 gas="gas-preprocessor.pl $cc"
3393 enabled ppc && add_asflags -force_cpusubtype_ALL
3394 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3395 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3396 add_ldflags -Wl,-dynamic,-search_paths_first
3397 SLIBSUF=".dylib"
3398 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3399 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3400 objformat="macho"
3401 enabled x86_64 && objformat="macho64"
3402 enabled_any pic shared ||
3403 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3404 ;;
3405 mingw32*)
3406 if test $target_os = "mingw32ce"; then
3407 disable network
3408 else
3409 target_os=mingw32
3410 fi
3411 LIBTARGET=i386
3412 if enabled x86_64; then
3413 LIBTARGET="i386:x86-64"
3414 elif enabled arm; then
3415 LIBTARGET=arm-wince
3416 fi
3417 check_ldflags -Wl,--nxcompat
3418 check_ldflags -Wl,--dynamicbase
3419 shlibdir_default="$bindir_default"
3420 SLIBPREF=""
3421 SLIBSUF=".dll"
3422 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3423 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3424 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3425 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3426 SLIB_INSTALL_LINKS=
3427 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3428 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3429 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3430 objformat="win32"
3431 dlltool="${cross_prefix}dlltool"
3432 ranlib=:
3433 enable dos_paths
3434 ;;
3435 win32|win64)
3436 disable symver
3437 if enabled shared; then
3438 # Link to the import library instead of the normal static library
3439 # for shared libs.
3440 LD_LIB='%.lib'
3441 # Cannot build both shared and static libs with MSVC or icl.
3442 disable static
3443 fi
3444 shlibdir_default="$bindir_default"
3445 SLIBPREF=""
3446 SLIBSUF=".dll"
3447 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3448 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3449 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3450 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3451 SLIB_INSTALL_LINKS=
3452 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3453 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3454 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3455 objformat="win32"
3456 ranlib=:
3457 enable dos_paths
3458 ;;
3459 cygwin*)
3460 target_os=cygwin
3461 shlibdir_default="$bindir_default"
3462 SLIBPREF="cyg"
3463 SLIBSUF=".dll"
3464 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3465 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3466 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3467 SLIB_INSTALL_LINKS=
3468 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3469 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3470 objformat="win32"
3471 enable dos_paths
3472 ;;
3473 *-dos|freedos|opendos)
3474 network_extralibs="-lsocket"
3475 objformat="coff"
3476 enable dos_paths
3477 add_cppflags -U__STRICT_ANSI__
3478 ;;
3479 linux)
3480 enable dv1394
3481 ;;
3482 irix*)
3483 target_os=irix
3484 ranlib="echo ignoring ranlib"
3485 ;;
3486 os/2*)
3487 ln_s="cp -f"
3488 objformat="aout"
3489 add_cppflags -D_GNU_SOURCE
3490 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3491 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3492 LIBSUF="_s.a"
3493 SLIBPREF=""
3494 SLIBSUF=".dll"
3495 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3496 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3497 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3498 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3499 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3500 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3501 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3502 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3503 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3504 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3505 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3506 enable dos_paths
3507 ;;
3508 gnu/kfreebsd)
3509 add_cppflags -D_BSD_SOURCE
3510 ;;
3511 gnu)
3512 ;;
3513 qnx)
3514 add_cppflags -D_QNX_SOURCE
3515 network_extralibs="-lsocket"
3516 ;;
3517 symbian)
3518 SLIBSUF=".dll"
3519 enable dos_paths
3520 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3521 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3522 add_ldflags -Wl,--target1-abs,--no-undefined \
3523 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3524 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3525 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3526 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3527 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3528 ;;
3529 osf1)
3530 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3531 ;;
3532 minix)
3533 ;;
3534 plan9)
3535 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3536 -D_REENTRANT_SOURCE \
3537 -D_RESEARCH_SOURCE \
3538 -DFD_SETSIZE=96 \
3539 -DHAVE_SOCK_OPTS
3540 add_compat strtod.o strtod=avpriv_strtod
3541 network_extralibs='-lbsd'
3542 exeobjs=compat/plan9/main.o
3543 cp_f='cp'
3544 ;;
3545 none)
3546 ;;
3547 *)
3548 die "Unknown OS '$target_os'."
3549 ;;
3550 esac
3551
3552 # determine libc flavour
3553
3554 probe_libc(){
3555 pfx=$1
3556 pfx_no_=${pfx%_}
3557 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3558 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3559 eval ${pfx}libc_type=uclibc
3560 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3561 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3562 eval ${pfx}libc_type=glibc
3563 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3564 # MinGW headers can be installed on Cygwin, so check for newlib first.
3565 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3566 eval ${pfx}libc_type=newlib
3567 add_${pfx}cppflags -U__STRICT_ANSI__
3568 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3569 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3570 eval ${pfx}libc_type=mingw64
3571 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3572 eval test \$${pfx_no_}cc_type = "gcc" &&
3573 add_${pfx}cppflags -D__printf__=__gnu_printf__
3574 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3575 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3576 eval ${pfx}libc_type=mingw32
3577 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3578 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3579 die "ERROR: MinGW32 runtime version must be >= 3.15."
3580 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3581 eval test \$${pfx_no_}cc_type = "gcc" &&
3582 add_${pfx}cppflags -D__printf__=__gnu_printf__
3583 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3584 eval ${pfx}libc_type=msvcrt
3585 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3586 # 0x601 by default unless something else is set by the user.
3587 # This can easily lead to us detecting functions only present
3588 # in such new versions and producing binaries requiring windows 7.0.
3589 # Therefore explicitly set the default to XP unless the user has
3590 # set something else on the command line.
3591 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3592 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3593 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3594 eval ${pfx}libc_type=klibc
3595 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3596 eval ${pfx}libc_type=bionic
3597 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3598 eval ${pfx}libc_type=solaris
3599 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3600 fi
3601 }
3602
3603 probe_libc
3604 test -n "$libc_type" && enable libc_$libc_type
3605 probe_libc host_
3606 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3607
3608 case $libc_type in
3609 bionic)
3610 add_compat strtod.o strtod=avpriv_strtod
3611 ;;
3612 msvcrt)
3613 add_compat strtod.o strtod=avpriv_strtod
3614 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3615 _snprintf=avpriv_snprintf \
3616 vsnprintf=avpriv_vsnprintf
3617 ;;
3618 esac
3619
3620 # hacks for compiler/libc/os combinations
3621
3622 if enabled_all tms470 libc_glibc; then
3623 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3624 add_cppflags -D__USER_LABEL_PREFIX__=
3625 add_cppflags -D__builtin_memset=memset
3626 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3627 add_cflags -pds=48 # incompatible redefinition of macro
3628 fi
3629
3630 if enabled_all ccc libc_glibc; then
3631 add_ldflags -Wl,-z,now # calls to libots crash without this
3632 fi
3633
3634 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3635 add_cppflags '-I\$(SRC_PATH)/compat/float'
3636
3637 esc(){
3638 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3639 }
3640
3641 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3642
3643 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3644
3645 set_default $PATHS_LIST
3646 set_default nm
3647
3648 # we need to build at least one lib type
3649 if ! enabled_any static shared; then
3650 cat <<EOF
3651 At least one library type must be built.
3652 Specify --enable-static to build the static libraries or --enable-shared to
3653 build the shared libraries as well. To only build the shared libraries specify
3654 --disable-static in addition to --enable-shared.
3655 EOF
3656 exit 1;
3657 fi
3658
3659 die_license_disabled() {
3660 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3661 }
3662
3663 die_license_disabled gpl libcdio
3664 die_license_disabled gpl libx264
3665 die_license_disabled gpl libx265
3666 die_license_disabled gpl libxavs
3667 die_license_disabled gpl libxvid
3668 die_license_disabled gpl x11grab
3669
3670 die_license_disabled nonfree libfaac
3671 die_license_disabled nonfree libfdk_aac
3672 die_license_disabled nonfree openssl
3673
3674 die_license_disabled version3 libopencore_amrnb
3675 die_license_disabled version3 libopencore_amrwb
3676 die_license_disabled version3 libvo_aacenc
3677 die_license_disabled version3 libvo_amrwbenc
3678
3679 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3680
3681 disabled optimizations || check_cflags -fomit-frame-pointer
3682
3683 enable_weak_pic() {
3684 disabled pic && return
3685 enable pic
3686 add_cppflags -DPIC
3687 case "$target_os" in
3688 mingw*|cygwin*)
3689 ;;
3690 *)
3691 add_cflags -fPIC
3692 ;;
3693 esac
3694 add_asflags -fPIC
3695 }
3696
3697 enabled pic && enable_weak_pic
3698
3699 check_cc <<EOF || die "Symbol mangling check failed."
3700 int ff_extern;
3701 EOF
3702 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3703 extern_prefix=${sym%%ff_extern*}
3704
3705 check_cc <<EOF && enable_weak inline_asm
3706 void foo(void) { __asm__ volatile ("" ::); }
3707 EOF
3708
3709 _restrict=
3710 for restrict_keyword in restrict __restrict__ __restrict; do
3711 check_cc <<EOF && _restrict=$restrict_keyword && break
3712 void foo(char * $restrict_keyword p);
3713 EOF
3714 done
3715
3716 check_cc <<EOF && enable pragma_deprecated
3717 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3718 EOF
3719
3720 check_cc <<EOF && enable attribute_packed
3721 struct { int x; } __attribute__((packed)) x;
3722 EOF
3723
3724 check_cc <<EOF && enable attribute_may_alias
3725 union { int x; } __attribute__((may_alias)) x;
3726 EOF
3727
3728 check_cc <<EOF || die "endian test failed"
3729 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3730 EOF
3731 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3732
3733
3734 if enabled asm; then
3735 enabled arm && nogas=die
3736 enabled_all ppc altivec && nogas=warn
3737 as=${gas:=$as}
3738 check_as <<EOF && enable gnu_as || \
3739 $nogas "GNU assembler not found, install gas-preprocessor"
3740 .macro m n
3741 \n: .int 0
3742 .endm
3743 m x
3744 EOF
3745
3746 check_as <<EOF || $nogas "GNU assembler not found, install gas-preprocessor"
3747 .altmacro
3748 EOF
3749
3750 check_as <<EOF && enable as_func
3751 .func test
3752 .endfunc
3753 EOF
3754 fi
3755
3756 check_inline_asm inline_asm_labels '"1:\n"'
3757
3758 if enabled aarch64; then
3759 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
3760 # internal assembler in clang 3.3 does not support this instruction
3761 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3762 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3763
3764 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3765
3766 elif enabled alpha; then
3767
3768 check_cflags -mieee
3769
3770 elif enabled arm; then
3771
3772 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3773 enabled thumb && check_cflags -mthumb || check_cflags -marm
3774
3775 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3776 enable vfp_args
3777 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3778 case "${cross_prefix:-$cc}" in
3779 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3780 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3781 __asm__ (".eabi_attribute 28, 1");
3782 int main(void) { return 0; }
3783 EOF
3784 esac
3785 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3786 fi
3787
3788 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3789 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3790 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3791 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3792 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3793 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3794
3795 [ $target_os = linux ] ||
3796 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3797 $ARCH_EXT_LIST_ARM
3798
3799 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3800
3801 check_as <<EOF && enable as_dn_directive
3802 ra .dn d0.i16
3803 .unreq ra
3804 EOF
3805
3806 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3807
3808 elif enabled mips; then
3809
3810 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3811
3812 elif enabled parisc; then
3813
3814 if enabled gcc; then
3815 case $($cc -dumpversion) in
3816 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3817 esac
3818 fi
3819
3820 elif enabled ppc; then
3821
3822 enable local_aligned_8 local_aligned_16
3823
3824 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3825 check_inline_asm ibm_asm '"add 0, 0, 0"'
3826 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3827 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3828
3829 # AltiVec flags: The FSF version of GCC differs from the Apple version
3830 if enabled altivec; then
3831 check_cflags -maltivec -mabi=altivec &&
3832 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3833 check_cflags -faltivec
3834
3835 # check if our compiler supports Motorola AltiVec C API
3836 check_cc <<EOF || disable altivec
3837 $inc_altivec_h
3838 int main(void) {
3839 vector signed int v1 = (vector signed int) { 0 };
3840 vector signed int v2 = (vector signed int) { 1 };
3841 v1 = vec_add(v1, v2);
3842 return 0;
3843 }
3844 EOF
3845
3846 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3847 fi
3848
3849 elif enabled x86; then
3850
3851 check_builtin rdtsc intrin.h "__rdtsc()"
3852 check_builtin mm_empty mmintrin.h "_mm_empty()"
3853
3854 enable local_aligned_8 local_aligned_16
3855
3856 # check whether EBP is available on x86
3857 # As 'i' is stored on the stack, this program will crash
3858 # if the base pointer is used to access it because the
3859 # base pointer is cleared in the inline assembly code.
3860 check_exec_crash <<EOF && enable ebp_available
3861 volatile int i=0;
3862 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3863 return i;
3864 EOF
3865
3866 # check whether EBX is available on x86
3867 check_inline_asm ebx_available '""::"b"(0)' &&
3868 check_inline_asm ebx_available '"":::"%ebx"'
3869
3870 # check whether xmm clobbers are supported
3871 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3872
3873 # check whether binutils is new enough to compile SSSE3/MMXEXT
3874 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3875 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3876
3877 if ! disabled_any asm mmx yasm; then
3878 if check_cmd $yasmexe --version; then
3879 enabled x86_64 && yasm_extra="-m amd64"
3880 yasm_debug="-g dwarf2"
3881 elif check_cmd nasm -v; then
3882 yasmexe=nasm
3883 yasm_debug="-g -F dwarf"
3884 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3885 fi
3886
3887 YASMFLAGS="-f $objformat $yasm_extra"
3888 enabled pic && append YASMFLAGS "-DPIC"
3889 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3890 case "$objformat" in
3891 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3892 esac
3893
3894 check_yasm "movbe ecx, [5]" && enable yasm ||
3895 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3896 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
3897 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
3898 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3899 check_yasm "CPU amdnop" || disable cpunop
3900 fi
3901
3902 case "$cpu" in
3903 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3904 disable fast_clz
3905 ;;
3906 esac
3907
3908 fi
3909
3910 check_ldflags -Wl,--as-needed
3911
3912 if check_func dlopen; then
3913 ldl=
3914 elif check_func dlopen -ldl; then
3915 ldl=-ldl
3916 fi
3917
3918 if ! disabled network; then
3919 check_func getaddrinfo $network_extralibs
3920 check_func getservbyport $network_extralibs
3921 check_func inet_aton $network_extralibs
3922
3923 check_type netdb.h "struct addrinfo"
3924 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3925 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3926 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3927 check_type poll.h "struct pollfd"
3928 check_type netinet/sctp.h "struct sctp_event_subscribe"
3929 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3930 check_type netinet/in.h "struct sockaddr_in6"
3931 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3932 check_type "sys/types.h sys/socket.h" socklen_t
3933
3934 # Prefer arpa/inet.h over winsock2
3935 if check_header arpa/inet.h ; then
3936 check_func closesocket
3937 elif check_header winsock2.h ; then
3938 check_func_headers winsock2.h closesocket -lws2 &&
3939 network_extralibs="-lws2" ||
3940 { check_func_headers winsock2.h closesocket -lws2_32 &&
3941 network_extralibs="-lws2_32"; } || disable winsock2_h network
3942 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3943
3944 check_type ws2tcpip.h socklen_t
3945 check_type ws2tcpip.h "struct addrinfo"
3946 check_type ws2tcpip.h "struct group_source_req"
3947 check_type ws2tcpip.h "struct ip_mreq_source"
3948 check_type ws2tcpip.h "struct ipv6_mreq"
3949 check_type winsock2.h "struct pollfd"
3950 check_struct winsock2.h "struct sockaddr" sa_len
3951 check_type ws2tcpip.h "struct sockaddr_in6"
3952 check_type ws2tcpip.h "struct sockaddr_storage"
3953 else
3954 disable network
3955 fi
3956 fi
3957
3958 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3959 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3960 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3961 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3962
3963 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3964 check_func ${malloc_prefix}memalign && enable memalign
3965 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3966
3967 check_func fcntl
3968 check_func fork
3969 check_func gethrtime
3970 check_func getopt
3971 check_func getrusage
3972 check_func gettimeofday
3973 check_func isatty
3974 check_func localtime_r
3975 check_func mach_absolute_time
3976 check_func mkstemp
3977 check_func mmap
3978 check_func mprotect
3979 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3980 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3981 check_func sched_getaffinity
3982 check_func setrlimit
3983 check_func strerror_r
3984 check_func strptime
3985 check_func sysconf
3986 check_func sysctl
3987 check_func usleep
3988
3989 check_func_headers io.h setmode
3990 check_func_headers stdlib.h getenv
3991
3992 check_func_headers windows.h CoTaskMemFree -lole32
3993 check_func_headers windows.h GetProcessAffinityMask
3994 check_func_headers windows.h GetProcessTimes
3995 check_func_headers windows.h GetSystemTimeAsFileTime
3996 check_func_headers windows.h MapViewOfFile
3997 check_func_headers windows.h SetConsoleTextAttribute
3998 check_func_headers windows.h Sleep
3999 check_func_headers windows.h VirtualAlloc
4000
4001 check_header direct.h
4002 check_header dlfcn.h
4003 check_header dxva.h
4004 check_header dxva2api.h
4005 check_header io.h
4006 check_header mach/mach_time.h
4007 check_header malloc.h
4008 check_header poll.h
4009 check_header sys/mman.h
4010 check_header sys/param.h
4011 check_header sys/resource.h
4012 check_header sys/select.h
4013 check_header sys/time.h
4014 check_header sys/un.h
4015 check_header unistd.h
4016 check_header vdpau/vdpau.h
4017 check_header vdpau/vdpau_x11.h
4018 check_header VideoDecodeAcceleration/VDADecoder.h
4019 check_header windows.h
4020 check_header X11/extensions/XvMClib.h
4021
4022 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4023 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4024 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4025
4026 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4027
4028 if ! disabled w32threads && ! enabled pthreads; then
4029 check_func_headers "windows.h process.h" _beginthreadex &&
4030 enable w32threads || disable w32threads
4031 fi
4032
4033 # check for some common methods of building with pthread support
4034 # do this before the optional library checks as some of them require pthreads
4035 if ! disabled pthreads && ! enabled w32threads; then
4036 enable pthreads
4037 if check_func pthread_join -pthread; then
4038 add_cflags -pthread
4039 add_extralibs -pthread
4040 elif check_func pthread_join -pthreads; then
4041 add_cflags -pthreads
4042 add_extralibs -pthreads
4043 elif check_func pthread_join -lpthreadGC2; then
4044 add_extralibs -lpthreadGC2
4045 elif check_lib pthread.h pthread_join -lpthread; then
4046 :
4047 elif ! check_func pthread_join; then
4048 disable pthreads
4049 fi
4050 fi
4051
4052 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4053 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4054
4055 check_lib math.h sin -lm && LIBM="-lm"
4056 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4057
4058 atan2f_args=2
4059 ldexpf_args=2
4060 powf_args=2
4061
4062 for func in $MATH_FUNCS; do
4063 eval check_mathfunc $func \${${func}_args:-1}
4064 done
4065
4066 # these are off by default, so fail if requested and not available
4067 enabled avisynth && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
4068 { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
4069 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4070 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4071 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4072 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4073 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4074 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4075 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4076 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4077 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4078 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4079 done || die "ERROR: libgsm not found"; }
4080 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4081 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4082 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4083 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4084 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4085 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4086 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4087 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4088 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4089 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4090 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4091 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
4092 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4093 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4094 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4095 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4096 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4097 enabled libvpx && {
4098 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4099 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4100 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
4101 die "ERROR: libvpx encoder version must be >=0.9.6"; }
4102 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4103 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4104 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4105 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4106 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4107 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4108 die "ERROR: libx264 version must be >= 0.118."; }
4109 enabled libx265 && require_pkg_config x265 x265.h x265_encoder_encode &&
4110 { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4111 die "ERROR: libx265 version must be >= 17."; }
4112 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4113 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4114 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4115 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4116 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4117 die "ERROR: openssl not found"; }
4118
4119 if enabled gnutls; then
4120 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4121 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4122 fi
4123
4124 # libdc1394 check
4125 if enabled libdc1394; then
4126 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4127 enable libdc1394_2; } ||
4128 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4129 enable libdc1394_1; } ||
4130 die "ERROR: No version of libdc1394 found "
4131 fi
4132
4133 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4134 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4135 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4136 enable sdl
4137 fi
4138
4139 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4140 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4141
4142 check_header linux/fb.h
4143 check_header linux/videodev2.h
4144 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4145
4146 check_header sys/videoio.h
4147
4148 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4149 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4150 # w32api 3.12 had it defined wrong
4151 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4152
4153 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4154 { check_header dev/bktr/ioctl_meteor.h &&
4155 check_header dev/bktr/ioctl_bt848.h; } ||
4156 { check_header machine/ioctl_meteor.h &&
4157 check_header machine/ioctl_bt848.h; } ||
4158 { check_header dev/video/meteor/ioctl_meteor.h &&
4159 check_header dev/video/bktr/ioctl_bt848.h; } ||
4160 check_header dev/ic/bt8xx.h
4161
4162 check_header sndio.h
4163 check_header sys/soundcard.h
4164 check_header soundcard.h
4165
4166 enabled_any alsa_indev alsa_outdev &&
4167 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4168
4169 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4170 check_func jack_port_get_latency_range -ljack
4171
4172 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4173
4174 if enabled libcdio; then
4175 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4176 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4177 fi
4178
4179 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4180
4181 enabled x11grab &&
4182 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4183 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4184 { enabled xlib || die "ERROR: Xlib not found"; }
4185
4186 enabled vdpau &&
4187 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4188 disable vdpau
4189
4190 enabled vdpau && enabled xlib &&
4191 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4192 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4193 enable vdpau_x11
4194
4195 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4196
4197 # add some useful compiler flags if supported
4198 check_cflags -Wdeclaration-after-statement
4199 check_cflags -Wall
4200 check_cflags -Wdisabled-optimization
4201 check_cflags -Wpointer-arith
4202 check_cflags -Wredundant-decls
4203 check_cflags -Wcast-qual
4204 check_cflags -Wwrite-strings
4205 check_cflags -Wtype-limits
4206 check_cflags -Wundef
4207 check_cflags -Wmissing-prototypes
4208 check_cflags -Wstrict-prototypes
4209 enabled extra_warnings && check_cflags -Winline
4210
4211 check_disable_warning(){
4212 warning_flag=-W${1#-Wno-}
4213 test_cflags $warning_flag && add_cflags $1
4214 }
4215
4216 check_disable_warning -Wno-parentheses
4217 check_disable_warning -Wno-switch
4218 check_disable_warning -Wno-format-zero-length
4219 check_disable_warning -Wno-pointer-sign
4220
4221 # add some linker flags
4222 check_ldflags -Wl,--warn-common
4223 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4224 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4225
4226 # add some strip flags
4227 # -wN '..@*' is more selective than -x, but not available everywhere.
4228 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4229
4230 enabled neon_clobber_test &&
4231 check_ldflags -Wl,--wrap,avcodec_open2 \
4232 -Wl,--wrap,avcodec_decode_audio4 \
4233 -Wl,--wrap,avcodec_decode_video2 \
4234 -Wl,--wrap,avcodec_decode_subtitle2 \
4235 -Wl,--wrap,avcodec_encode_audio2 \
4236 -Wl,--wrap,avcodec_encode_video2 \
4237 -Wl,--wrap,avcodec_encode_subtitle \
4238 -Wl,--wrap,avresample_convert ||
4239 disable neon_clobber_test
4240
4241 enabled xmm_clobber_test &&
4242 check_ldflags -Wl,--wrap,avcodec_open2 \
4243 -Wl,--wrap,avcodec_decode_audio4 \
4244 -Wl,--wrap,avcodec_decode_video2 \
4245 -Wl,--wrap,avcodec_decode_subtitle2 \
4246 -Wl,--wrap,avcodec_encode_audio2 \
4247 -Wl,--wrap,avcodec_encode_video2 \
4248 -Wl,--wrap,avcodec_encode_subtitle \
4249 -Wl,--wrap,avresample_convert \
4250 -Wl,--wrap,sws_scale ||
4251 disable xmm_clobber_test
4252
4253 echo "X{};" > $TMPV
4254 if test_ldflags -Wl,--version-script,$TMPV; then
4255 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4256 check_cc <<EOF && enable symver_asm_label
4257 void ff_foo(void) __asm__ ("av_foo@VERSION");
4258 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4259 EOF
4260 check_cc <<EOF && enable symver_gnu_asm
4261 __asm__(".symver ff_foo,av_foo@VERSION");
4262 void ff_foo(void) {}
4263 EOF
4264 fi
4265
4266 if [ -z "$optflags" ]; then
4267 if enabled small; then
4268 optflags=$cflags_size
4269 elif enabled optimizations; then
4270 optflags=$cflags_speed
4271 else
4272 optflags=$cflags_noopt
4273 fi
4274 fi
4275
4276 check_optflags(){
4277 check_cflags "$@"
4278 enabled lto && check_ldflags "$@"
4279 }
4280
4281
4282 if enabled lto; then
4283 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4284 check_cflags -flto
4285 check_ldflags -flto $cpuflags
4286 fi
4287
4288 check_optflags $optflags
4289 check_optflags -fno-math-errno
4290 check_optflags -fno-signed-zeros
4291
4292 if enabled icc; then
4293 # Just warnings, no remarks
4294 check_cflags -w1
4295 # -wd: Disable following warnings
4296 # 144, 167, 556: -Wno-pointer-sign
4297 # 1292: attribute "foo" ignored
4298 # 1419: external declaration in primary source file
4299 # 10006: ignoring unknown option -fno-signed-zeros
4300 # 10148: ignoring unknown option -Wno-parentheses
4301 # 10156: ignoring option '-W'; no argument required
4302 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4303 # 11030: Warning unknown option --as-needed
4304 # 10156: ignoring option '-export'; no argument required
4305 check_ldflags -wd10156,11030
4306 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4307 enable ebp_available
4308 if enabled x86_32; then
4309 icc_version=$($cc -dumpversion)
4310 test ${icc_version%%.*} -ge 11 &&
4311 check_cflags -falign-stack=maintain-16-byte ||
4312 disable aligned_stack
4313 fi
4314 elif enabled ccc; then
4315 # disable some annoying warnings
4316 add_cflags -msg_disable bitnotint
4317 add_cflags -msg_disable mixfuncvoid
4318 add_cflags -msg_disable nonstandcast
4319 add_cflags -msg_disable unsupieee
4320 elif enabled gcc; then
4321 check_optflags -fno-tree-vectorize
4322 check_cflags -Werror=implicit-function-declaration
4323 check_cflags -Werror=missing-prototypes
4324 check_cflags -Werror=return-type
4325 check_cflags -Werror=declaration-after-statement
4326 check_cflags -Werror=vla
4327 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4328 elif enabled llvm_gcc; then
4329 check_cflags -mllvm -stack-alignment=16
4330 elif enabled clang; then
4331 check_cflags -mllvm -stack-alignment=16
4332 check_cflags -Qunused-arguments
4333 check_cflags -Werror=implicit-function-declaration
4334 check_cflags -Werror=missing-prototypes
4335 check_cflags -Werror=return-type
4336 elif enabled cparser; then
4337 add_cflags -Wno-missing-variable-declarations
4338 add_cflags -Wno-empty-statement
4339 elif enabled armcc; then
4340 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4341 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4342 # 2523: use of inline assembler is deprecated
4343 add_cflags -W${armcc_opt},--diag_suppress=2523
4344 add_cflags -W${armcc_opt},--diag_suppress=1207
4345 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4346 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4347 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4348 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4349 elif enabled tms470; then
4350 add_cflags -pds=824 -pds=837
4351 disable inline_asm
4352 elif enabled pathscale; then
4353 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4354 elif enabled_any msvc icl; then
4355 enabled x86_32 && disable aligned_stack
4356 enabled_all x86_32 debug && add_cflags -Oy-
4357 enabled debug && add_ldflags -debug
4358 enable pragma_deprecated
4359 if enabled icl; then
4360 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4361 # (correctly) on icl 13.x.
4362 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4363 add_cflags -Qansi-alias
4364 # icl will pass the inline asm tests but inline asm is currently
4365 # not supported (build will fail)
4366 disable inline_asm
4367 fi
4368 fi
4369
4370 case $as_type in
4371 clang)
4372 add_asflags -Qunused-arguments
4373 ;;
4374 esac
4375
4376 case $ld_type in
4377 clang<