f88900501cedc67093d0a6185a1cff3e2097d5d5
[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 disable avserver build
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-libcdio enable audio CD grabbing with libcdio
182 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
183 and libraw1394 [no]
184 --enable-libfaac enable AAC encoding via libfaac [no]
185 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
186 --enable-libfreetype enable libfreetype [no]
187 --enable-libgsm enable GSM de/encoding via libgsm [no]
188 --enable-libilbc enable iLBC de/encoding via libilbc [no]
189 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
190 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
191 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
192 --enable-libopencv enable video filtering via libopencv [no]
193 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
194 --enable-libopus enable Opus decoding via libopus [no]
195 --enable-libpulse enable Pulseaudio input via libpulse [no]
196 --enable-librtmp enable RTMP[E] support via librtmp [no]
197 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
198 --enable-libspeex enable Speex de/encoding via libspeex [no]
199 --enable-libtheora enable Theora encoding via libtheora [no]
200 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
201 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
202 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
203 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
204 --enable-libwavpack enable wavpack encoding via libwavpack [no]
205 --enable-libwebp enable WebP encoding via libwebp [no]
206 --enable-libx264 enable H.264 encoding via x264 [no]
207 --enable-libx265 enable HEVC encoding via x265 [no]
208 --enable-libxavs enable AVS encoding via xavs [no]
209 --enable-libxvid enable Xvid encoding via xvidcore,
210 native MPEG-4/Xvid encoder exists [no]
211 --enable-openssl enable openssl [no]
212 --enable-x11grab enable X11 grabbing [no]
213 --enable-zlib enable zlib [autodetect]
214
215 Advanced options (experts only):
216 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
217 --enable-cross-compile assume a cross-compiler is used
218 --sysroot=PATH root of cross-build tree
219 --sysinclude=PATH location of cross-build system headers
220 --target-os=OS compiler targets OS [$target_os]
221 --target-exec=CMD command to run executables on target
222 --target-path=DIR path to view of build directory on target
223 --target-samples=DIR path to samples directory on target
224 --toolchain=NAME set tool defaults according to NAME
225 --nm=NM use nm tool
226 --ar=AR use archive tool AR [$ar_default]
227 --as=AS use assembler AS [$as_default]
228 --cc=CC use C compiler CC [$cc_default]
229 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
230 --ld=LD use linker LD
231 --host-cc=HOSTCC use host C compiler HOSTCC
232 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
233 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
234 --host-ld=HOSTLD use host linker HOSTLD
235 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
236 --host-libs=HLIBS use libs HLIBS when linking for host
237 --host-os=OS compiler host OS [$target_os]
238 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
239 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
240 --extra-libs=ELIBS add ELIBS [$ELIBS]
241 --extra-version=STRING version string suffix []
242 --optflags=OPTFLAGS override optimization-related compiler flags
243 --build-suffix=SUFFIX library name suffix []
244 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
245 --arch=ARCH select architecture [$arch]
246 --cpu=CPU select the minimum required CPU (affects
247 instruction selection, may crash on older CPUs)
248 --enable-pic build position-independent code
249 --enable-sram allow use of on-chip SRAM
250 --enable-thumb compile for Thumb instruction set
251 --disable-symver disable symbol versioning
252 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
253 --disable-safe-bitstream-reader
254 disable buffer boundary checking in bitreaders
255 (faster, but may crash)
256 --enable-memalign-hack emulate memalign, interferes with memory debuggers
257 --enable-lto use link-time optimization
258
259 Optimization options (experts only):
260 --disable-asm disable all assembler optimizations
261 --disable-altivec disable AltiVec optimizations
262 --disable-amd3dnow disable 3DNow! optimizations
263 --disable-amd3dnowext disable 3DNow! extended optimizations
264 --disable-mmx disable MMX optimizations
265 --disable-mmxext disable MMXEXT optimizations
266 --disable-sse disable SSE optimizations
267 --disable-sse2 disable SSE2 optimizations
268 --disable-sse3 disable SSE3 optimizations
269 --disable-ssse3 disable SSSE3 optimizations
270 --disable-sse4 disable SSE4 optimizations
271 --disable-sse42 disable SSE4.2 optimizations
272 --disable-avx disable AVX optimizations
273 --disable-fma4 disable FMA4 optimizations
274 --disable-avx2 disable AVX2 optimizations
275 --disable-armv5te disable armv5te optimizations
276 --disable-armv6 disable armv6 optimizations
277 --disable-armv6t2 disable armv6t2 optimizations
278 --disable-vfp disable VFP optimizations
279 --disable-neon disable NEON optimizations
280 --disable-vis disable VIS optimizations
281 --disable-inline-asm disable use of inline assembler
282 --disable-yasm disable use of yasm assembler
283
284 Developer options (useful when working on Libav itself):
285 --disable-debug disable debugging symbols
286 --enable-debug=LEVEL set the debug level [$debuglevel]
287 --disable-optimizations disable compiler optimizations
288 --enable-extra-warnings enable more compiler warnings
289 --samples=PATH location of test samples for FATE, if not set use
290 \$LIBAV_SAMPLES at make invocation time.
291 --enable-neon-clobber-test check NEON registers for clobbering (should be
292 used only for debugging purposes)
293 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
294 should be used only for debugging purposes)
295 --enable-random randomly enable/disable components
296 --disable-random
297 --enable-random=LIST randomly enable/disable specific components or
298 --disable-random=LIST component groups. LIST is a comma-separated list
299 of NAME[:PROB] entries where NAME is a component
300 (group) and PROB the probability associated with
301 NAME (default 0.5).
302 --random-seed=VALUE seed value for --enable/disable-random
303
304 NOTE: Object files are built at the place where configure is launched.
305 EOF
306 exit 0
307 }
308
309 quotes='""'
310
311 log(){
312 echo "$@" >> $logfile
313 }
314
315 log_file(){
316 log BEGIN $1
317 pr -n -t $1 >> $logfile
318 log END $1
319 }
320
321 echolog(){
322 log "$@"
323 echo "$@"
324 }
325
326 warn(){
327 log "WARNING: $*"
328 WARNINGS="${WARNINGS}WARNING: $*\n"
329 }
330
331 die(){
332 echolog "$@"
333 cat <<EOF
334
335 If you think configure made a mistake, make sure you are using the latest
336 version from Git. If the latest version fails, report the problem to the
337 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
338 EOF
339 if disabled logging; then
340 cat <<EOF
341 Rerun configure with logging enabled (do not use --disable-logging), and
342 include the log this produces with your report.
343 EOF
344 else
345 cat <<EOF
346 Include the log file "$logfile" produced by configure as this will help
347 solving the problem.
348 EOF
349 fi
350 exit 1
351 }
352
353 # Avoid locale weirdness, besides we really just want to translate ASCII.
354 toupper(){
355 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
356 }
357
358 tolower(){
359 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
360 }
361
362 c_escape(){
363 echo "$*" | sed 's/["\\]/\\\0/g'
364 }
365
366 sh_quote(){
367 v=$(echo "$1" | sed "s/'/'\\\\''/g")
368 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
369 echo "$v"
370 }
371
372 cleanws(){
373 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
374 }
375
376 filter(){
377 pat=$1
378 shift
379 for v; do
380 eval "case $v in $pat) echo $v ;; esac"
381 done
382 }
383
384 filter_out(){
385 pat=$1
386 shift
387 for v; do
388 eval "case $v in $pat) ;; *) echo $v ;; esac"
389 done
390 }
391
392 map(){
393 m=$1
394 shift
395 for v; do eval $m; done
396 }
397
398 add_suffix(){
399 suffix=$1
400 shift
401 for v; do echo ${v}${suffix}; done
402 }
403
404 set_all(){
405 value=$1
406 shift
407 for var in $*; do
408 eval $var=$value
409 done
410 }
411
412 set_weak(){
413 value=$1
414 shift
415 for var; do
416 eval : \${$var:=$value}
417 done
418 }
419
420 sanitize_var_name(){
421 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
422 }
423
424 set_safe(){
425 var=$1
426 shift
427 eval $(sanitize_var_name "$var")='$*'
428 }
429
430 get_safe(){
431 eval echo \$$(sanitize_var_name "$1")
432 }
433
434 pushvar(){
435 for pvar in $*; do
436 eval level=\${${pvar}_level:=0}
437 eval ${pvar}_${level}="\$$pvar"
438 eval ${pvar}_level=$(($level+1))
439 done
440 }
441
442 popvar(){
443 for pvar in $*; do
444 eval level=\${${pvar}_level:-0}
445 test $level = 0 && continue
446 eval level=$(($level-1))
447 eval $pvar="\${${pvar}_${level}}"
448 eval ${pvar}_level=$level
449 eval unset ${pvar}_${level}
450 done
451 }
452
453 enable(){
454 set_all yes $*
455 }
456
457 disable(){
458 set_all no $*
459 }
460
461 enable_weak(){
462 set_weak yes $*
463 }
464
465 disable_weak(){
466 set_weak no $*
467 }
468
469 enable_safe(){
470 for var; do
471 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
472 done
473 }
474
475 disable_safe(){
476 for var; do
477 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
478 done
479 }
480
481 do_enable_deep(){
482 for var; do
483 enabled $var && continue
484 eval sel="\$${var}_select"
485 eval sgs="\$${var}_suggest"
486 pushvar var sgs
487 enable_deep $sel
488 popvar sgs
489 enable_deep_weak $sgs
490 popvar var
491 done
492 }
493
494 enable_deep(){
495 do_enable_deep $*
496 enable $*
497 }
498
499 enable_deep_weak(){
500 for var; do
501 disabled $var && continue
502 pushvar var
503 do_enable_deep $var
504 popvar var
505 enable_weak $var
506 done
507 }
508
509 enabled(){
510 test "${1#!}" = "$1" && op== || op=!=
511 eval test "x\$${1#!}" $op "xyes"
512 }
513
514 disabled(){
515 test "${1#!}" = "$1" && op== || op=!=
516 eval test "x\$${1#!}" $op "xno"
517 }
518
519 enabled_all(){
520 for opt; do
521 enabled $opt || return 1
522 done
523 }
524
525 disabled_all(){
526 for opt; do
527 disabled $opt || return 1
528 done
529 }
530
531 enabled_any(){
532 for opt; do
533 enabled $opt && return 0
534 done
535 }
536
537 disabled_any(){
538 for opt; do
539 disabled $opt && return 0
540 done
541 return 1
542 }
543
544 set_default(){
545 for opt; do
546 eval : \${$opt:=\$${opt}_default}
547 done
548 }
549
550 is_in(){
551 value=$1
552 shift
553 for var in $*; do
554 [ $var = $value ] && return 0
555 done
556 return 1
557 }
558
559 do_check_deps(){
560 for cfg; do
561 cfg="${cfg#!}"
562 enabled ${cfg}_checking && die "Circular dependency for $cfg."
563 disabled ${cfg}_checking && continue
564 enable ${cfg}_checking
565 append allopts $cfg
566
567 eval dep_all="\$${cfg}_deps"
568 eval dep_any="\$${cfg}_deps_any"
569 eval dep_sel="\$${cfg}_select"
570 eval dep_sgs="\$${cfg}_suggest"
571 eval dep_ifa="\$${cfg}_if"
572 eval dep_ifn="\$${cfg}_if_any"
573
574 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
575 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
576 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
577
578 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
579 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
580 enabled_all $dep_all || disable $cfg
581 enabled_any $dep_any || disable $cfg
582 disabled_any $dep_sel && disable $cfg
583
584 if enabled $cfg; then
585 enable_deep $dep_sel
586 enable_deep_weak $dep_sgs
587 fi
588
589 disable ${cfg}_checking
590 done
591 }
592
593 check_deps(){
594 unset allopts
595
596 do_check_deps "$@"
597
598 for cfg in $allopts; do
599 enabled $cfg || continue
600 eval dep_extralibs="\$${cfg}_extralibs"
601 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
602 done
603 }
604
605 print_config(){
606 pfx=$1
607 files=$2
608 shift 2
609 map 'eval echo "$v \${$v:-no}"' "$@" |
610 awk "BEGIN { split(\"$files\", files) }
611 {
612 c = \"$pfx\" toupper(\$1);
613 v = \$2;
614 sub(/yes/, 1, v);
615 sub(/no/, 0, v);
616 for (f in files) {
617 file = files[f];
618 if (file ~ /\\.h\$/) {
619 printf(\"#define %s %d\\n\", c, v) >>file;
620 } else if (file ~ /\\.asm\$/) {
621 printf(\"%%define %s %d\\n\", c, v) >>file;
622 } else if (file ~ /\\.mak\$/) {
623 n = -v ? \"\" : \"!\";
624 printf(\"%s%s=yes\\n\", n, c) >>file;
625 }
626 }
627 }"
628 }
629
630 print_enabled(){
631 suf=$1
632 shift
633 for v; do
634 enabled $v && printf "%s\n" ${v%$suf};
635 done
636 }
637
638 append(){
639 var=$1
640 shift
641 eval "$var=\"\$$var $*\""
642 }
643
644 prepend(){
645 var=$1
646 shift
647 eval "$var=\"$* \$$var\""
648 }
649
650 add_cppflags(){
651 append CPPFLAGS "$@"
652 }
653
654 add_cflags(){
655 append CFLAGS $($cflags_filter "$@")
656 }
657
658 add_asflags(){
659 append ASFLAGS $($asflags_filter "$@")
660 }
661
662 add_ldflags(){
663 append LDFLAGS $($ldflags_filter "$@")
664 }
665
666 add_stripflags(){
667 append STRIPFLAGS "$@"
668 }
669
670 add_extralibs(){
671 prepend extralibs $($ldflags_filter "$@")
672 }
673
674 add_host_cppflags(){
675 append host_cppflags "$@"
676 }
677
678 add_host_cflags(){
679 append host_cflags $($host_cflags_filter "$@")
680 }
681
682 add_host_ldflags(){
683 append host_ldflags $($host_ldflags_filter "$@")
684 }
685
686 add_compat(){
687 append compat_objs $1
688 shift
689 map 'add_cppflags -D$v' "$@"
690 }
691
692 check_cmd(){
693 log "$@"
694 "$@" >> $logfile 2>&1
695 }
696
697 cc_o(){
698 eval printf '%s\\n' $CC_O
699 }
700
701 cc_e(){
702 eval printf '%s\\n' $CC_E
703 }
704
705 check_cc(){
706 log check_cc "$@"
707 cat > $TMPC
708 log_file $TMPC
709 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
710 }
711
712 check_cpp(){
713 log check_cpp "$@"
714 cat > $TMPC
715 log_file $TMPC
716 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
717 }
718
719 as_o(){
720 eval printf '%s\\n' $AS_O
721 }
722
723 check_as(){
724 log check_as "$@"
725 cat > $TMPS
726 log_file $TMPS
727 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
728 }
729
730 check_inline_asm(){
731 log check_inline_asm "$@"
732 name="$1"
733 code="$2"
734 shift 2
735 disable $name
736 check_cc "$@" <<EOF && enable $name
737 void foo(void){ __asm__ volatile($code); }
738 EOF
739 }
740
741 check_insn(){
742 log check_insn "$@"
743 check_inline_asm ${1}_inline "\"$2\""
744 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
745 }
746
747 check_yasm(){
748 log check_yasm "$@"
749 echo "$1" > $TMPS
750 log_file $TMPS
751 shift 1
752 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
753 }
754
755 ld_o(){
756 eval printf '%s\\n' $LD_O
757 }
758
759 check_ld(){
760 log check_ld "$@"
761 flags=$(filter_out '-l*' "$@")
762 libs=$(filter '-l*' "$@")
763 check_cc $($cflags_filter $flags) || return
764 flags=$($ldflags_filter $flags)
765 libs=$($ldflags_filter $libs)
766 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
767 }
768
769 print_include(){
770 hdr=$1
771 test "${hdr%.h}" = "${hdr}" &&
772 echo "#include $hdr" ||
773 echo "#include <$hdr>"
774 }
775
776 check_code(){
777 log check_code "$@"
778 check=$1
779 headers=$2
780 code=$3
781 shift 3
782 {
783 for hdr in $headers; do
784 print_include $hdr
785 done
786 echo "int main(void) { $code; return 0; }"
787 } | check_$check "$@"
788 }
789
790 check_cppflags(){
791 log check_cppflags "$@"
792 check_cc "$@" <<EOF && append CPPFLAGS "$@"
793 int x;
794 EOF
795 }
796
797 test_cflags(){
798 log test_cflags "$@"
799 set -- $($cflags_filter "$@")
800 check_cc "$@" <<EOF
801 int x;
802 EOF
803 }
804
805 check_cflags(){
806 log check_cflags "$@"
807 test_cflags "$@" && add_cflags "$@"
808 }
809
810 test_ldflags(){
811 log test_ldflags "$@"
812 check_ld "$@" <<EOF
813 int main(void){ return 0; }
814 EOF
815 }
816
817 check_ldflags(){
818 log check_ldflags "$@"
819 test_ldflags "$@" && add_ldflags "$@"
820 }
821
822 test_stripflags(){
823 log test_stripflags "$@"
824 # call check_cc to get a fresh TMPO
825 check_cc <<EOF
826 int main(void) { return 0; }
827 EOF
828 check_cmd $strip $STRIPFLAGS "$@" $TMPO
829 }
830
831 check_stripflags(){
832 log check_stripflags "$@"
833 test_stripflags "$@" && add_stripflags "$@"
834 }
835
836 check_header(){
837 log check_header "$@"
838 header=$1
839 shift
840 disable_safe $header
841 check_cpp "$@" <<EOF && enable_safe $header
842 #include <$header>
843 int x;
844 EOF
845 }
846
847 check_func(){
848 log check_func "$@"
849 func=$1
850 shift
851 disable $func
852 check_ld "$@" <<EOF && enable $func
853 extern int $func();
854 int main(void){ $func(); }
855 EOF
856 }
857
858 check_mathfunc(){
859 log check_mathfunc "$@"
860 func=$1
861 narg=$2
862 shift 2
863 test $narg = 2 && args="f, g" || args="f"
864 disable $func
865 check_ld "$@" <<EOF && enable $func
866 #include <math.h>
867 float foo(float f, float g) { return $func($args); }
868 int main(void){ return 0; }
869 EOF
870 }
871
872 check_func_headers(){
873 log check_func_headers "$@"
874 headers=$1
875 funcs=$2
876 shift 2
877 {
878 for hdr in $headers; do
879 print_include $hdr
880 done
881 for func in $funcs; do
882 echo "long check_$func(void) { return (long) $func; }"
883 done
884 echo "int main(void) { return 0; }"
885 } | check_ld "$@" && enable $funcs && enable_safe $headers
886 }
887
888 check_cpp_condition(){
889 log check_cpp_condition "$@"
890 header=$1
891 condition=$2
892 shift 2
893 check_cpp "$@" <<EOF
894 #include <$header>
895 #if !($condition)
896 #error "unsatisfied condition: $condition"
897 #endif
898 EOF
899 }
900
901 check_lib(){
902 log check_lib "$@"
903 header="$1"
904 func="$2"
905 shift 2
906 check_header $header && check_func $func "$@" && add_extralibs "$@"
907 }
908
909 check_lib2(){
910 log check_lib2 "$@"
911 headers="$1"
912 funcs="$2"
913 shift 2
914 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
915 }
916
917 check_pkg_config(){
918 log check_pkg_config "$@"
919 pkg="$1"
920 headers="$2"
921 funcs="$3"
922 shift 3
923 check_cmd $pkg_config --exists --print-errors $pkg || return
924 pkg_cflags=$($pkg_config --cflags $pkg)
925 pkg_libs=$($pkg_config --libs $pkg)
926 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
927 set_safe ${pkg}_cflags $pkg_cflags &&
928 set_safe ${pkg}_libs $pkg_libs
929 }
930
931 check_exec(){
932 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
933 }
934
935 check_exec_crash(){
936 code=$(cat)
937
938 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
939 # are safe but may not be available everywhere. Thus we use
940 # raise(SIGTERM) instead. The check is run in a subshell so we
941 # can redirect the "Terminated" message from the shell. SIGBUS
942 # is not defined by standard C so it is used conditionally.
943
944 (check_exec "$@") >> $logfile 2>&1 <<EOF
945 #include <signal.h>
946 static void sighandler(int sig){
947 raise(SIGTERM);
948 }
949 int foo(void){
950 $code
951 }
952 int (*func_ptr)(void) = foo;
953 int main(void){
954 signal(SIGILL, sighandler);
955 signal(SIGFPE, sighandler);
956 signal(SIGSEGV, sighandler);
957 #ifdef SIGBUS
958 signal(SIGBUS, sighandler);
959 #endif
960 return func_ptr();
961 }
962 EOF
963 }
964
965 check_type(){
966 log check_type "$@"
967 headers=$1
968 type=$2
969 shift 2
970 disable_safe "$type"
971 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
972 }
973
974 check_struct(){
975 log check_struct "$@"
976 headers=$1
977 struct=$2
978 member=$3
979 shift 3
980 disable_safe "${struct}_${member}"
981 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
982 enable_safe "${struct}_${member}"
983 }
984
985 check_builtin(){
986 log check_builtin "$@"
987 name=$1
988 headers=$2
989 builtin=$3
990 shift 3
991 disable "$name"
992 check_code ld "$headers" "$builtin" "$@" && enable "$name"
993 }
994
995 require(){
996 name="$1"
997 header="$2"
998 func="$3"
999 shift 3
1000 check_lib $header $func "$@" || die "ERROR: $name not found"
1001 }
1002
1003 require2(){
1004 name="$1"
1005 headers="$2"
1006 func="$3"
1007 shift 3
1008 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1009 }
1010
1011 require_pkg_config(){
1012 pkg="$1"
1013 check_pkg_config "$@" || die "ERROR: $pkg not found"
1014 add_cflags $(get_safe ${pkg}_cflags)
1015 add_extralibs $(get_safe ${pkg}_libs)
1016 }
1017
1018 hostcc_e(){
1019 eval printf '%s\\n' $HOSTCC_E
1020 }
1021
1022 hostcc_o(){
1023 eval printf '%s\\n' $HOSTCC_O
1024 }
1025
1026 check_host_cc(){
1027 log check_host_cc "$@"
1028 cat > $TMPC
1029 log_file $TMPC
1030 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1031 }
1032
1033 check_host_cpp(){
1034 log check_host_cpp "$@"
1035 cat > $TMPC
1036 log_file $TMPC
1037 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1038 }
1039
1040 check_host_cppflags(){
1041 log check_host_cppflags "$@"
1042 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 check_host_cflags(){
1048 log check_host_cflags "$@"
1049 set -- $($host_cflags_filter "$@")
1050 check_host_cc "$@" <<EOF && append host_cflags "$@"
1051 int x;
1052 EOF
1053 }
1054
1055 check_host_cpp_condition(){
1056 log check_host_cpp_condition "$@"
1057 header=$1
1058 condition=$2
1059 shift 2
1060 check_host_cpp "$@" <<EOF
1061 #include <$header>
1062 #if !($condition)
1063 #error "unsatisfied condition: $condition"
1064 #endif
1065 EOF
1066 }
1067
1068 apply(){
1069 file=$1
1070 shift
1071 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1072 }
1073
1074 cp_if_changed(){
1075 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1076 mkdir -p "$(dirname $2)"
1077 $cp_f "$1" "$2"
1078 }
1079
1080 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1081 # system-dependent things.
1082
1083 COMPONENT_LIST="
1084 bsfs
1085 decoders
1086 demuxers
1087 encoders
1088 filters
1089 hwaccels
1090 indevs
1091 muxers
1092 outdevs
1093 parsers
1094 protocols
1095 "
1096
1097 EXAMPLE_LIST="
1098 avcodec_example
1099 metadata_example
1100 output_example
1101 transcode_aac_example
1102 "
1103
1104 EXTERNAL_LIBRARY_LIST="
1105 avisynth
1106 bzlib
1107 frei0r
1108 gnutls
1109 libcdio
1110 libdc1394
1111 libfaac
1112 libfdk_aac
1113 libfreetype
1114 libgsm
1115 libilbc
1116 libmp3lame
1117 libopencore_amrnb
1118 libopencore_amrwb
1119 libopencv
1120 libopenjpeg
1121 libopus
1122 libpulse
1123 librtmp
1124 libschroedinger
1125 libspeex
1126 libtheora
1127 libvo_aacenc
1128 libvo_amrwbenc
1129 libvorbis
1130 libvpx
1131 libwavpack
1132 libwebp
1133 libx264
1134 libx265
1135 libxavs
1136 libxvid
1137 openssl
1138 x11grab
1139 zlib
1140 "
1141
1142 HWACCEL_LIST="
1143 dxva2
1144 vaapi
1145 vda
1146 vdpau
1147 "
1148 LIBRARY_LIST="
1149 avcodec
1150 avdevice
1151 avfilter
1152 avformat
1153 avresample
1154 avutil
1155 swscale
1156 "
1157
1158 PROGRAM_LIST="
1159 avconv
1160 avplay
1161 avprobe
1162 avserver
1163 "
1164
1165 CONFIG_LIST="
1166 $COMPONENT_LIST
1167 $EXAMPLE_LIST
1168 $EXTERNAL_LIBRARY_LIST
1169 $HWACCEL_LIST
1170 $LIBRARY_LIST
1171 $PROGRAM_LIST
1172 dct
1173 doc
1174 error_resilience
1175 fft
1176 gpl
1177 gray
1178 hardcoded_tables
1179 lsp
1180 lzo
1181 mdct
1182 memalign_hack
1183 neon_clobber_test
1184 network
1185 nonfree
1186 pod2man
1187 pic
1188 rdft
1189 runtime_cpudetect
1190 safe_bitstream_reader
1191 shared
1192 small
1193 sram
1194 static
1195 swscale_alpha
1196 texi2html
1197 thumb
1198 version3
1199 xmm_clobber_test
1200 "
1201
1202 THREADS_LIST='
1203 pthreads
1204 w32threads
1205 '
1206
1207 ATOMICS_LIST='
1208 atomics_gcc
1209 atomics_suncc
1210 atomics_win32
1211 '
1212
1213 ARCH_LIST='
1214 aarch64
1215 alpha
1216 arm
1217 avr32
1218 avr32_ap
1219 avr32_uc
1220 bfin
1221 ia64
1222 m68k
1223 mips
1224 mips64
1225 parisc
1226 ppc
1227 ppc64
1228 s390
1229 sh4
1230 sparc
1231 sparc64
1232 tilegx
1233 tilepro
1234 tomi
1235 x86
1236 x86_32
1237 x86_64
1238 '
1239
1240 ARCH_EXT_LIST_ARM='
1241 armv5te
1242 armv6
1243 armv6t2
1244 neon
1245 vfp
1246 vfpv3
1247 '
1248
1249 ARCH_EXT_LIST_X86='
1250 amd3dnow
1251 amd3dnowext
1252 avx
1253 avx2
1254 cpunop
1255 fma4
1256 i686
1257 mmx
1258 mmxext
1259 sse
1260 sse2
1261 sse3
1262 sse4
1263 sse42
1264 ssse3
1265 '
1266
1267 ARCH_EXT_LIST="
1268 $ARCH_EXT_LIST_ARM
1269 $ARCH_EXT_LIST_X86
1270 altivec
1271 ppc4xx
1272 vis
1273 "
1274
1275 HAVE_LIST_CMDLINE='
1276 inline_asm
1277 symver
1278 yasm
1279 '
1280
1281 HAVE_LIST_PUB='
1282 bigendian
1283 fast_unaligned
1284 '
1285
1286 MATH_FUNCS="
1287 atanf
1288 atan2f
1289 cbrtf
1290 cosf
1291 exp2
1292 exp2f
1293 expf
1294 isinf
1295 isnan
1296 ldexpf
1297 llrint
1298 llrintf
1299 log2
1300 log2f
1301 log10f
1302 lrint
1303 lrintf
1304 powf
1305 rint
1306 round
1307 roundf
1308 sinf
1309 trunc
1310 truncf
1311 "
1312
1313 HAVE_LIST="
1314 $ARCH_EXT_LIST
1315 $(add_suffix _external $ARCH_EXT_LIST)
1316 $(add_suffix _inline $ARCH_EXT_LIST)
1317 $HAVE_LIST_CMDLINE
1318 $HAVE_LIST_PUB
1319 $THREADS_LIST
1320 $ATOMICS_LIST
1321 $MATH_FUNCS
1322 aligned_malloc
1323 aligned_stack
1324 alsa_asoundlib_h
1325 altivec_h
1326 arpa_inet_h
1327 asm_mod_q
1328 asm_mod_y
1329 atomic_cas_ptr
1330 atomics_native
1331 attribute_may_alias
1332 attribute_packed
1333 cdio_paranoia_h
1334 cdio_paranoia_paranoia_h
1335 closesocket
1336 CommandLineToArgvW
1337 CryptGenRandom
1338 dcbzl
1339 dev_bktr_ioctl_bt848_h
1340 dev_bktr_ioctl_meteor_h
1341 dev_ic_bt8xx_h
1342 dev_video_bktr_ioctl_bt848_h
1343 dev_video_meteor_ioctl_meteor_h
1344 direct_h
1345 dlfcn_h
1346 dlopen
1347 dos_paths
1348 dxva_h
1349 ebp_available
1350 ebx_available
1351 fast_64bit
1352 fast_clz
1353 fast_cmov
1354 fcntl
1355 fork
1356 getaddrinfo
1357 gethrtime
1358 getopt
1359 GetProcessAffinityMask
1360 GetProcessMemoryInfo
1361 GetProcessTimes
1362 GetSystemTimeAsFileTime
1363 getrusage
1364 getservbyport
1365 gettimeofday
1366 gnu_as
1367 gsm_h
1368 ibm_asm
1369 inet_aton
1370 io_h
1371 inline_asm_labels
1372 isatty
1373 jack_port_get_latency_range
1374 ldbrx
1375 libc_msvcrt
1376 libdc1394_1
1377 libdc1394_2
1378 local_aligned_16
1379 local_aligned_8
1380 localtime_r
1381 loongson
1382 machine_ioctl_bt848_h
1383 machine_ioctl_meteor_h
1384 machine_rw_barrier
1385 malloc_h
1386 MapViewOfFile
1387 memalign
1388 MemoryBarrier
1389 mkstemp
1390 mm_empty
1391 mmap
1392 mprotect
1393 nanosleep
1394 poll_h
1395 posix_memalign
1396 pragma_deprecated
1397 rdtsc
1398 sched_getaffinity
1399 sdl
1400 SetConsoleTextAttribute
1401 setmode
1402 setrlimit
1403 Sleep
1404 sndio_h
1405 socklen_t
1406 soundcard_h
1407 strerror_r
1408 strptime
1409 strtok_r
1410 struct_addrinfo
1411 struct_group_source_req
1412 struct_ip_mreq_source
1413 struct_ipv6_mreq
1414 struct_pollfd
1415 struct_rusage_ru_maxrss
1416 struct_sockaddr_in6
1417 struct_sockaddr_sa_len
1418 struct_sockaddr_storage
1419 struct_v4l2_frmivalenum_discrete
1420 symver_asm_label
1421 symver_gnu_asm
1422 sync_val_compare_and_swap
1423 sysconf
1424 sysctl
1425 sys_mman_h
1426 sys_param_h
1427 sys_resource_h
1428 sys_select_h
1429 sys_soundcard_h
1430 sys_time_h
1431 sys_un_h
1432 sys_videoio_h
1433 threads
1434 unistd_h
1435 usleep
1436 vdpau_x11
1437 vfp_args
1438 VirtualAlloc
1439 windows_h
1440 winsock2_h
1441 xform_asm
1442 xlib
1443 xmm_clobbers
1444 "
1445
1446 # options emitted with CONFIG_ prefix but not available on the command line
1447 CONFIG_EXTRA="
1448 aandcttables
1449 ac3dsp
1450 audio_frame_queue
1451 dsputil
1452 gcrypt
1453 golomb
1454 gplv3
1455 h263dsp
1456 h264chroma
1457 h264dsp
1458 h264pred
1459 h264qpel
1460 hpeldsp
1461 huffman
1462 intrax8
1463 lgplv3
1464 lpc
1465 mpegaudio
1466 mpegaudiodsp
1467 mpegvideo
1468 mpegvideoenc
1469 nettle
1470 rangecoder
1471 riffdec
1472 riffenc
1473 rtpdec
1474 rtpenc_chain
1475 sinewin
1476 videodsp
1477 vp3dsp
1478 "
1479
1480 CMDLINE_SELECT="
1481 $ARCH_EXT_LIST
1482 $CONFIG_LIST
1483 $HAVE_LIST_CMDLINE
1484 $THREADS_LIST
1485 asm
1486 cross_compile
1487 debug
1488 extra_warnings
1489 logging
1490 lto
1491 optimizations
1492 "
1493
1494 PATHS_LIST='
1495 bindir
1496 datadir
1497 docdir
1498 incdir
1499 libdir
1500 mandir
1501 prefix
1502 shlibdir
1503 '
1504
1505 CMDLINE_SET="
1506 $PATHS_LIST
1507 ar
1508 arch
1509 as
1510 build_suffix
1511 cc
1512 cpu
1513 cross_prefix
1514 dep_cc
1515 extra_version
1516 host_cc
1517 host_cflags
1518 host_ld
1519 host_ldflags
1520 host_libs
1521 host_os
1522 ld
1523 logfile
1524 malloc_prefix
1525 nm
1526 optflags
1527 pkg_config
1528 random_seed
1529 samples
1530 sysinclude
1531 sysroot
1532 target_exec
1533 target_os
1534 target_path
1535 target_samples
1536 toolchain
1537 "
1538
1539 CMDLINE_APPEND="
1540 extra_cflags
1541 host_cppflags
1542 "
1543
1544 # code dependency declarations
1545
1546 # architecture extensions
1547
1548 armv5te_deps="arm"
1549 armv6_deps="arm"
1550 armv6t2_deps="arm"
1551 neon_deps_any="aarch64 arm"
1552 vfp_deps_any="aarch64 arm"
1553 vfpv3_deps="vfp"
1554
1555 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1556
1557 altivec_deps="ppc"
1558 ppc4xx_deps="ppc"
1559
1560 vis_deps="sparc"
1561
1562 cpunop_deps="i686"
1563 x86_64_select="i686"
1564 x86_64_suggest="fast_cmov"
1565
1566 amd3dnow_deps="mmx"
1567 amd3dnowext_deps="amd3dnow"
1568 i686_deps="x86"
1569 mmx_deps="x86"
1570 mmxext_deps="mmx"
1571 sse_deps="mmxext"
1572 sse2_deps="sse"
1573 sse3_deps="sse2"
1574 ssse3_deps="sse3"
1575 sse4_deps="ssse3"
1576 sse42_deps="sse4"
1577 avx_deps="sse42"
1578 fma4_deps="avx"
1579 avx2_deps="avx"
1580
1581 mmx_external_deps="yasm"
1582 mmx_inline_deps="inline_asm"
1583 mmx_suggest="mmx_external mmx_inline"
1584
1585 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1586 eval dep=\$${ext}_deps
1587 eval ${ext}_external_deps='"${dep}_external"'
1588 eval ${ext}_inline_deps='"${dep}_inline"'
1589 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1590 done
1591
1592 aligned_stack_if_any="aarch64 ppc x86"
1593 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1594 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1595 fast_unaligned_if_any="aarch64 ppc x86"
1596
1597 need_memalign="altivec neon sse"
1598
1599 # system capabilities
1600 log2_deps="!libc_msvcrt"
1601
1602 symver_if_any="symver_asm_label symver_gnu_asm"
1603
1604 # threading support
1605 atomics_gcc_if="sync_val_compare_and_swap"
1606 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1607 atomics_win32_if="MemoryBarrier"
1608 atomics_native_if_any="$ATOMICS_LIST"
1609 w32threads_deps="atomics_native"
1610 threads_if_any="$THREADS_LIST"
1611
1612 # subsystems
1613 dct_select="rdft"
1614 error_resilience_select="dsputil"
1615 lpc_select="dsputil"
1616 mdct_select="fft"
1617 rdft_select="fft"
1618 mpegaudio_select="mpegaudiodsp"
1619 mpegaudiodsp_select="dct"
1620 mpegvideo_select="dsputil hpeldsp videodsp"
1621 mpegvideoenc_select="mpegvideo"
1622
1623 # decoders / encoders
1624 aac_decoder_select="mdct sinewin"
1625 aac_encoder_select="audio_frame_queue mdct sinewin"
1626 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1627 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1628 ac3_encoder_select="mdct ac3dsp dsputil"
1629 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1630 aic_decoder_select="dsputil golomb"
1631 alac_encoder_select="lpc"
1632 als_decoder_select="dsputil"
1633 amrnb_decoder_select="lsp"
1634 amrwb_decoder_select="lsp"
1635 amv_decoder_select="dsputil hpeldsp"
1636 ape_decoder_select="dsputil"
1637 asv1_decoder_select="dsputil"
1638 asv1_encoder_select="dsputil"
1639 asv2_decoder_select="dsputil"
1640 asv2_encoder_select="dsputil"
1641 atrac1_decoder_select="mdct sinewin"
1642 atrac3_decoder_select="mdct"
1643 atrac3p_decoder_select="mdct sinewin"
1644 bink_decoder_select="dsputil hpeldsp"
1645 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1646 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1647 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1648 cllc_decoder_select="dsputil"
1649 comfortnoise_encoder_select="lpc"
1650 cook_decoder_select="dsputil mdct sinewin"
1651 cscd_decoder_select="lzo"
1652 cscd_decoder_suggest="zlib"
1653 dca_decoder_select="mdct"
1654 dnxhd_decoder_select="dsputil"
1655 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1656 dvvideo_decoder_select="dsputil"
1657 dvvideo_encoder_select="dsputil"
1658 dxa_decoder_deps="zlib"
1659 eac3_decoder_select="ac3_decoder"
1660 eac3_encoder_select="ac3_encoder"
1661 eamad_decoder_select="aandcttables dsputil mpegvideo"
1662 eatgq_decoder_select="aandcttables dsputil"
1663 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1664 ffv1_decoder_select="dsputil golomb rangecoder"
1665 ffv1_encoder_select="dsputil rangecoder"
1666 ffvhuff_decoder_select="dsputil"
1667 ffvhuff_encoder_select="dsputil huffman"
1668 fic_decoder_select="dsputil golomb"
1669 flac_decoder_select="golomb"
1670 flac_encoder_select="dsputil golomb lpc"
1671 flashsv_decoder_deps="zlib"
1672 flashsv_encoder_deps="zlib"
1673 flashsv2_decoder_deps="zlib"
1674 flv_decoder_select="h263_decoder"
1675 flv_encoder_select="h263_encoder"
1676 fourxm_decoder_select="dsputil"
1677 fraps_decoder_select="dsputil huffman"
1678 g2m_decoder_deps="zlib"
1679 g2m_decoder_select="dsputil"
1680 h261_decoder_select="error_resilience mpegvideo"
1681 h261_encoder_select="aandcttables mpegvideoenc"
1682 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1683 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1684 h263i_decoder_select="h263_decoder"
1685 h263p_encoder_select="h263_encoder"
1686 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1687 h264_decoder_suggest="error_resilience"
1688 hevc_decoder_select="dsputil golomb videodsp"
1689 huffyuv_decoder_select="dsputil"
1690 huffyuv_encoder_select="dsputil huffman"
1691 iac_decoder_select="dsputil fft mdct sinewin"
1692 imc_decoder_select="dsputil fft mdct sinewin"
1693 indeo3_decoder_select="hpeldsp"
1694 interplay_video_decoder_select="hpeldsp"
1695 jpegls_decoder_select="dsputil golomb hpeldsp"
1696 jpegls_encoder_select="golomb"
1697 jv_decoder_select="dsputil"
1698 lagarith_decoder_select="dsputil"
1699 ljpeg_encoder_select="aandcttables mpegvideoenc"
1700 loco_decoder_select="golomb"
1701 mdec_decoder_select="dsputil error_resilience mpegvideo"
1702 metasound_decoder_select="lsp mdct sinewin"
1703 mimic_decoder_select="dsputil hpeldsp"
1704 mjpeg_decoder_select="dsputil hpeldsp"
1705 mjpegb_decoder_select="dsputil hpeldsp"
1706 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1707 mlp_decoder_select="dsputil mlp_parser"
1708 motionpixels_decoder_select="dsputil"
1709 mp1_decoder_select="mpegaudio"
1710 mp1float_decoder_select="mpegaudio"
1711 mp2_decoder_select="mpegaudio"
1712 mp2float_decoder_select="mpegaudio"
1713 mp3_decoder_select="mpegaudio"
1714 mp3adu_decoder_select="mpegaudio"
1715 mp3adufloat_decoder_select="mpegaudio"
1716 mp3float_decoder_select="mpegaudio"
1717 mp3on4_decoder_select="mpegaudio"
1718 mp3on4float_decoder_select="mpegaudio"
1719 mpc7_decoder_select="dsputil mpegaudiodsp"
1720 mpc8_decoder_select="dsputil mpegaudiodsp"
1721 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1722 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1723 mpeg1video_decoder_select="error_resilience mpegvideo"
1724 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1725 mpeg2video_decoder_select="error_resilience mpegvideo"
1726 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1727 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1728 mpeg4_encoder_select="h263_encoder"
1729 msmpeg4v1_decoder_select="h263_decoder"
1730 msmpeg4v2_decoder_select="h263_decoder"
1731 msmpeg4v2_encoder_select="h263_encoder"
1732 msmpeg4v3_decoder_select="h263_decoder"
1733 msmpeg4v3_encoder_select="h263_encoder"
1734 mss2_decoder_select="error_resilience vc1_decoder"
1735 mxpeg_decoder_select="dsputil hpeldsp"
1736 nellymoser_decoder_select="mdct sinewin"
1737 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1738 nuv_decoder_select="dsputil lzo"
1739 png_decoder_deps="zlib"
1740 png_decoder_select="dsputil"
1741 png_encoder_deps="zlib"
1742 png_encoder_select="dsputil"
1743 prores_decoder_select="dsputil"
1744 prores_encoder_select="dsputil"
1745 qcelp_decoder_select="lsp"
1746 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1747 ra_144_encoder_select="audio_frame_queue lpc"
1748 ralf_decoder_select="golomb"
1749 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1750 rv10_encoder_select="h263_encoder"
1751 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1752 rv20_encoder_select="h263_encoder"
1753 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1754 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1755 shorten_decoder_select="golomb"
1756 sipr_decoder_select="lsp"
1757 sp5x_decoder_select="dsputil hpeldsp"
1758 svq1_decoder_select="hpeldsp"
1759 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1760 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1761 svq3_decoder_suggest="error_resilience zlib"
1762 tak_decoder_select="dsputil"
1763 theora_decoder_select="vp3_decoder"
1764 tiff_decoder_suggest="zlib"
1765 tiff_encoder_suggest="zlib"
1766 thp_decoder_select="dsputil hpeldsp"
1767 truehd_decoder_select="mlp_decoder"
1768 truemotion2_decoder_select="dsputil"
1769 truespeech_decoder_select="dsputil"
1770 tscc_decoder_deps="zlib"
1771 twinvq_decoder_select="mdct lsp sinewin"
1772 utvideo_decoder_select="dsputil"
1773 utvideo_encoder_select="dsputil huffman"
1774 vble_decoder_select="dsputil"
1775 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1776 vc1image_decoder_select="vc1_decoder"
1777 vorbis_decoder_select="mdct"
1778 vorbis_encoder_select="mdct"
1779 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1780 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1781 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1782 vp6a_decoder_select="vp6_decoder"
1783 vp6f_decoder_select="vp6_decoder"
1784 vp8_decoder_select="h264pred videodsp"
1785 vp9_decoder_select="videodsp"
1786 webp_decoder_select="vp8_decoder"
1787 wmapro_decoder_select="mdct sinewin"
1788 wmav1_decoder_select="mdct sinewin"
1789 wmav1_encoder_select="mdct sinewin"
1790 wmav2_decoder_select="mdct sinewin"
1791 wmav2_encoder_select="mdct sinewin"
1792 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1793 wmv1_decoder_select="h263_decoder"
1794 wmv1_encoder_select="h263_encoder"
1795 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1796 wmv2_encoder_select="h263_encoder"
1797 wmv3_decoder_select="vc1_decoder"
1798 wmv3image_decoder_select="wmv3_decoder"
1799 zerocodec_decoder_deps="zlib"
1800 zlib_decoder_deps="zlib"
1801 zlib_encoder_deps="zlib"
1802 zmbv_decoder_deps="zlib"
1803 zmbv_encoder_deps="zlib"
1804
1805 # hardware accelerators
1806 dxva2_deps="dxva2api_h"
1807 vaapi_deps="va_va_h"
1808 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1809 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1810 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1811
1812 h263_vaapi_hwaccel_deps="vaapi"
1813 h263_vaapi_hwaccel_select="h263_decoder"
1814 h263_vdpau_hwaccel_deps="vdpau"
1815 h263_vdpau_hwaccel_select="h263_decoder"
1816 h264_dxva2_hwaccel_deps="dxva2"
1817 h264_dxva2_hwaccel_select="h264_decoder"
1818 h264_vaapi_hwaccel_deps="vaapi"
1819 h264_vaapi_hwaccel_select="h264_decoder"
1820 h264_vda_hwaccel_deps="vda"
1821 h264_vda_hwaccel_select="h264_decoder"
1822 h264_vdpau_hwaccel_deps="vdpau"
1823 h264_vdpau_hwaccel_select="h264_decoder"
1824 mpeg1_vdpau_hwaccel_deps="vdpau"
1825 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1826 mpeg2_dxva2_hwaccel_deps="dxva2"
1827 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1828 mpeg2_vaapi_hwaccel_deps="vaapi"
1829 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1830 mpeg2_vdpau_hwaccel_deps="vdpau"
1831 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1832 mpeg4_vaapi_hwaccel_deps="vaapi"
1833 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1834 mpeg4_vdpau_hwaccel_deps="vdpau"
1835 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1836 vc1_dxva2_hwaccel_deps="dxva2"
1837 vc1_dxva2_hwaccel_select="vc1_decoder"
1838 vc1_vaapi_hwaccel_deps="vaapi"
1839 vc1_vaapi_hwaccel_select="vc1_decoder"
1840 vc1_vdpau_hwaccel_deps="vdpau"
1841 vc1_vdpau_hwaccel_select="vc1_decoder"
1842 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1843 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1844 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1845
1846 # parsers
1847 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1848 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
1849 mpegvideo_parser_select="error_resilience mpegvideo"
1850 vc1_parser_select="mpegvideo"
1851
1852 # external libraries
1853 libfaac_encoder_deps="libfaac"
1854 libfaac_encoder_select="audio_frame_queue"
1855 libfdk_aac_decoder_deps="libfdk_aac"
1856 libfdk_aac_encoder_deps="libfdk_aac"
1857 libfdk_aac_encoder_select="audio_frame_queue"
1858 libgsm_decoder_deps="libgsm"
1859 libgsm_encoder_deps="libgsm"
1860 libgsm_ms_decoder_deps="libgsm"
1861 libgsm_ms_encoder_deps="libgsm"
1862 libilbc_decoder_deps="libilbc"
1863 libilbc_encoder_deps="libilbc"
1864 libmp3lame_encoder_deps="libmp3lame"
1865 libmp3lame_encoder_select="audio_frame_queue"
1866 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1867 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1868 libopencore_amrnb_encoder_select="audio_frame_queue"
1869 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1870 libopenjpeg_decoder_deps="libopenjpeg"
1871 libopenjpeg_encoder_deps="libopenjpeg"
1872 libopus_decoder_deps="libopus"
1873 libopus_encoder_deps="libopus"
1874 libopus_encoder_select="audio_frame_queue"
1875 libschroedinger_decoder_deps="libschroedinger"
1876 libschroedinger_encoder_deps="libschroedinger"
1877 libspeex_decoder_deps="libspeex"
1878 libspeex_encoder_deps="libspeex"
1879 libspeex_encoder_select="audio_frame_queue"
1880 libtheora_encoder_deps="libtheora"
1881 libvo_aacenc_encoder_deps="libvo_aacenc"
1882 libvo_aacenc_encoder_select="audio_frame_queue"
1883 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1884 libvorbis_encoder_deps="libvorbis"
1885 libvorbis_encoder_select="audio_frame_queue"
1886 libvpx_vp8_decoder_deps="libvpx"
1887 libvpx_vp8_encoder_deps="libvpx"
1888 libvpx_vp9_decoder_deps="libvpx"
1889 libvpx_vp9_encoder_deps="libvpx"
1890 libwavpack_encoder_deps="libwavpack"
1891 libwebp_encoder_deps="libwebp"
1892 libx264_encoder_deps="libx264"
1893 libx265_encoder_deps="libx265"
1894 libxavs_encoder_deps="libxavs"
1895 libxvid_encoder_deps="libxvid"
1896
1897 # demuxers / muxers
1898 ac3_demuxer_select="ac3_parser"
1899 asf_demuxer_select="riffdec"
1900 asf_muxer_select="riffenc"
1901 asf_stream_muxer_select="asf_muxer"
1902 avi_demuxer_select="riffdec"
1903 avi_muxer_select="riffenc"
1904 avisynth_demuxer_deps="avisynth"
1905 avisynth_demuxer_select="riffdec"
1906 caf_demuxer_select="riffdec"
1907 dirac_demuxer_select="dirac_parser"
1908 dxa_demuxer_select="riffdec"
1909 eac3_demuxer_select="ac3_parser"
1910 f4v_muxer_select="mov_muxer"
1911 flac_demuxer_select="flac_parser"
1912 hds_muxer_select="flv_muxer"
1913 hls_muxer_select="mpegts_muxer"
1914 ipod_muxer_select="mov_muxer"
1915 ismv_muxer_select="mov_muxer"
1916 matroska_audio_muxer_select="matroska_muxer"
1917 matroska_demuxer_select="riffdec"
1918 matroska_demuxer_suggest="bzlib lzo zlib"
1919 matroska_muxer_select="riffenc"
1920 mmf_muxer_select="riffenc"
1921 mov_demuxer_select="riffdec"
1922 mov_demuxer_suggest="zlib"
1923 mov_muxer_select="riffenc rtpenc_chain"
1924 mp3_demuxer_select="mpegaudio_parser"
1925 mp4_muxer_select="mov_muxer"
1926 mpegts_muxer_select="adts_muxer latm_muxer"
1927 mpegtsraw_demuxer_select="mpegts_demuxer"
1928 mxf_d10_muxer_select="mxf_muxer"
1929 nut_muxer_select="riffenc"
1930 nuv_demuxer_select="riffdec"
1931 ogg_demuxer_select="golomb"
1932 psp_muxer_select="mov_muxer"
1933 rtp_demuxer_select="sdp_demuxer"
1934 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1935 rtsp_demuxer_select="http_protocol rtpdec"
1936 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1937 sap_demuxer_select="sdp_demuxer"
1938 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1939 sdp_demuxer_select="rtpdec"
1940 smoothstreaming_muxer_select="ismv_muxer"
1941 spdif_muxer_select="aac_parser"
1942 tak_demuxer_select="tak_parser"
1943 tg2_muxer_select="mov_muxer"
1944 tgp_muxer_select="mov_muxer"
1945 w64_demuxer_select="wav_demuxer"
1946 wav_demuxer_select="riffdec"
1947 wav_muxer_select="riffenc"
1948 webm_muxer_select="riffenc"
1949 wtv_demuxer_select="riffdec"
1950 xmv_demuxer_select="riffdec"
1951 xwma_demuxer_select="riffdec"
1952
1953 # indevs / outdevs
1954 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1955 alsa_outdev_deps="alsa_asoundlib_h"
1956 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1957 dv1394_indev_deps="dv1394"
1958 dv1394_indev_select="dv_demuxer"
1959 fbdev_indev_deps="linux_fb_h"
1960 jack_indev_deps="jack_jack_h pthreads"
1961 libcdio_indev_deps="libcdio"
1962 libdc1394_indev_deps="libdc1394"
1963 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1964 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1965 pulse_indev_deps="libpulse"
1966 sndio_indev_deps="sndio_h"
1967 sndio_outdev_deps="sndio_h"
1968 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1969 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1970 vfwcap_indev_extralibs="-lavicap32"
1971 x11grab_indev_deps="x11grab XShmCreateImage"
1972
1973 # protocols
1974 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1975 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1976 ffrtmpcrypt_protocol_select="tcp_protocol"
1977 ffrtmphttp_protocol_deps="!librtmp_protocol"
1978 ffrtmphttp_protocol_select="http_protocol"
1979 gopher_protocol_select="network"
1980 httpproxy_protocol_select="tcp_protocol"
1981 http_protocol_select="tcp_protocol"
1982 https_protocol_select="tls_protocol"
1983 librtmp_protocol_deps="librtmp"
1984 librtmpe_protocol_deps="librtmp"
1985 librtmps_protocol_deps="librtmp"
1986 librtmpt_protocol_deps="librtmp"
1987 librtmpte_protocol_deps="librtmp"
1988 mmsh_protocol_select="http_protocol"
1989 mmst_protocol_select="network"
1990 rtmp_protocol_deps="!librtmp_protocol"
1991 rtmp_protocol_select="tcp_protocol"
1992 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1993 rtmps_protocol_deps="!librtmp_protocol"
1994 rtmps_protocol_select="tls_protocol"
1995 rtmpt_protocol_select="ffrtmphttp_protocol"
1996 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1997 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1998 rtp_protocol_select="udp_protocol"
1999 sctp_protocol_deps="struct_sctp_event_subscribe"
2000 sctp_protocol_select="network"
2001 srtp_protocol_select="rtp_protocol"
2002 tcp_protocol_select="network"
2003 tls_protocol_deps_any="openssl gnutls"
2004 tls_protocol_select="tcp_protocol"
2005 udp_protocol_select="network"
2006 unix_protocol_deps="sys_un_h"
2007 unix_protocol_select="network"
2008
2009 # filters
2010 blackframe_filter_deps="gpl"
2011 boxblur_filter_deps="gpl"
2012 cropdetect_filter_deps="gpl"
2013 delogo_filter_deps="gpl"
2014 drawtext_filter_deps="libfreetype"
2015 frei0r_filter_deps="frei0r dlopen strtok_r"
2016 frei0r_filter_extralibs='$ldl'
2017 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2018 frei0r_src_filter_extralibs='$ldl'
2019 hqdn3d_filter_deps="gpl"
2020 interlace_filter_deps="gpl"
2021 resample_filter_deps="avresample"
2022 ocv_filter_deps="libopencv"
2023 scale_filter_deps="swscale"
2024
2025 # examples
2026 avcodec_example_deps="avcodec avutil"
2027 metadata_example_deps="avformat avutil"
2028 output_example_deps="avcodec avformat avutil swscale"
2029 transcode_aac_example_deps="avcodec avformat avresample"
2030
2031 # libraries
2032 avcodec_deps="avutil"
2033 avdevice_deps="avutil avcodec avformat"
2034 avfilter_deps="avutil"
2035 avformat_deps="avutil avcodec"
2036 avresample_deps="avutil"
2037 swscale_deps="avutil"
2038
2039 # programs
2040 avconv_deps="avcodec avfilter avformat avresample swscale"
2041 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2042 fps_filter null_filter resample_filter scale_filter
2043 setpts_filter trim_filter"
2044 avplay_deps="avcodec avformat avresample swscale sdl"
2045 avplay_libs='$sdl_libs'
2046 avplay_select="rdft"
2047 avprobe_deps="avcodec avformat"
2048 avserver_deps="avformat fork !shared"
2049 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2050
2051 # documentation
2052 pod2man_deps="doc"
2053 texi2html_deps="doc"
2054
2055 # default parameters
2056
2057 logfile="config.log"
2058
2059 # installation paths
2060 prefix_default="/usr/local"
2061 bindir_default='${prefix}/bin'
2062 datadir_default='${prefix}/share/avconv'
2063 docdir_default='${prefix}/share/doc/libav'
2064 incdir_default='${prefix}/include'
2065 libdir_default='${prefix}/lib'
2066 mandir_default='${prefix}/share/man'
2067 shlibdir_default="$libdir_default"
2068
2069 # toolchain
2070 ar_default="ar"
2071 cc_default="gcc"
2072 host_cc_default="gcc"
2073 cp_f="cp -f"
2074 ln_s="ln -s -f"
2075 nm_default="nm -g"
2076 objformat="elf"
2077 pkg_config_default=pkg-config
2078 ranlib="ranlib"
2079 strip="strip"
2080 yasmexe="yasm"
2081
2082 nogas=":"
2083
2084 # machine
2085 arch_default=$(uname -m)
2086 cpu="generic"
2087
2088 # OS
2089 target_os_default=$(tolower $(uname -s))
2090 host_os=$target_os_default
2091
2092 # configurable options
2093 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2094
2095 enable asm
2096 enable debug
2097 enable doc
2098 enable optimizations
2099 enable safe_bitstream_reader
2100 enable static
2101 enable swscale_alpha
2102
2103 # By default, enable only those hwaccels that have no external dependencies.
2104 enable dxva2 vdpau
2105
2106 # build settings
2107 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2108 LIBPREF="lib"
2109 LIBSUF=".a"
2110 FULLNAME='$(NAME)$(BUILDSUF)'
2111 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2112 SLIBPREF="lib"
2113 SLIBSUF=".so"
2114 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2115 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2116 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2117 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2118 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2119 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2120
2121 asflags_filter=echo
2122 cflags_filter=echo
2123 ldflags_filter=echo
2124
2125 AS_C='-c'
2126 AS_O='-o $@'
2127 CC_C='-c'
2128 CC_E='-E -o $@'
2129 CC_O='-o $@'
2130 LD_O='-o $@'
2131 LD_LIB='-l%'
2132 LD_PATH='-L'
2133 HOSTCC_C='-c'
2134 HOSTCC_E='-E -o $@'
2135 HOSTCC_O='-o $@'
2136 HOSTLD_O='-o $@'
2137
2138 host_libs='-lm'
2139 host_cflags_filter=echo
2140 host_ldflags_filter=echo
2141
2142 target_path='$(CURDIR)'
2143
2144 # since the object filename is not given with the -MM flag, the compiler
2145 # is only able to print the basename, and we must add the path ourselves
2146 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2147 DEPFLAGS='-MM'
2148
2149 # find source path
2150 if test -f configure; then
2151 source_path=.
2152 else
2153 source_path=$(cd $(dirname "$0"); pwd)
2154 echo "$source_path" | grep -q '[[:blank:]]' &&
2155 die "Out of tree builds are impossible with whitespace in source path."
2156 test -e "$source_path/config.h" &&
2157 die "Out of tree builds are impossible with config.h in source dir."
2158 fi
2159
2160 for v in "$@"; do
2161 r=${v#*=}
2162 l=${v%"$r"}
2163 r=$(sh_quote "$r")
2164 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2165 done
2166
2167 find_things(){
2168 thing=$1
2169 pattern=$2
2170 file=$source_path/$3
2171 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2172 }
2173
2174 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2175 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2176 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2177 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2178 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2179 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2180 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2181 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2182 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2183 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2184 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2185
2186 ALL_COMPONENTS="
2187 $BSF_LIST
2188 $DECODER_LIST
2189 $DEMUXER_LIST
2190 $ENCODER_LIST
2191 $FILTER_LIST
2192 $HWACCEL_LIST
2193 $INDEV_LIST
2194 $MUXER_LIST
2195 $OUTDEV_LIST
2196 $PARSER_LIST
2197 $PROTOCOL_LIST
2198 "
2199
2200 for n in $COMPONENT_LIST; do
2201 v=$(toupper ${n%s})_LIST
2202 eval enable \$$v
2203 eval ${n}_if_any="\$$v"
2204 done
2205
2206 enable $ARCH_EXT_LIST
2207
2208 die_unknown(){
2209 echo "Unknown option \"$1\"."
2210 echo "See $0 --help for available options."
2211 exit 1
2212 }
2213
2214 print_3_columns() {
2215 cat | tr ' ' '\n' | sort | pr -r -3 -t
2216 }
2217
2218 show_list() {
2219 suffix=_$1
2220 shift
2221 echo $* | sed s/$suffix//g | print_3_columns
2222 exit 0
2223 }
2224
2225 rand_list(){
2226 IFS=', '
2227 set -- $*
2228 unset IFS
2229 for thing; do
2230 comp=${thing%:*}
2231 prob=${thing#$comp}
2232 prob=${prob#:}
2233 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2234 echo "prob ${prob:-0.5}"
2235 printf '%s\n' $comp
2236 done
2237 }
2238
2239 do_random(){
2240 action=$1
2241 shift
2242 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2243 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2244 }
2245
2246 for opt do
2247 optval="${opt#*=}"
2248 case "$opt" in
2249 --extra-ldflags=*)
2250 add_ldflags $optval
2251 ;;
2252 --extra-libs=*)
2253 add_extralibs $optval
2254 ;;
2255 --disable-devices)
2256 disable $INDEV_LIST $OUTDEV_LIST
2257 ;;
2258 --enable-debug=*)
2259 debuglevel="$optval"
2260 ;;
2261 --disable-programs)
2262 disable $PROGRAM_LIST
2263 ;;
2264 --disable-everything)
2265 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2266 ;;
2267 --disable-all)
2268 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2269 disable $LIBRARY_LIST $PROGRAM_LIST doc
2270 ;;
2271 --enable-random|--disable-random)
2272 action=${opt%%-random}
2273 do_random ${action#--} $COMPONENT_LIST
2274 ;;
2275 --enable-random=*|--disable-random=*)
2276 action=${opt%%-random=*}
2277 do_random ${action#--} $optval
2278 ;;
2279 --enable-*=*|--disable-*=*)
2280 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2281 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2282 eval list=\$$(toupper $thing)_LIST
2283 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2284 $action $(filter "$name" $list)
2285 ;;
2286 --enable-?*|--disable-?*)
2287 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2288 if is_in $option $COMPONENT_LIST; then
2289 test $action = disable && action=unset
2290 eval $action \$$(toupper ${option%s})_LIST
2291 elif is_in $option $CMDLINE_SELECT; then
2292 $action $option
2293 else
2294 die_unknown $opt
2295 fi
2296 ;;
2297 --list-*)
2298 NAME="${opt#--list-}"
2299 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2300 NAME=${NAME%s}
2301 eval show_list $NAME \$$(toupper $NAME)_LIST
2302 ;;
2303 --help|-h) show_help
2304 ;;
2305 *)
2306 optname="${opt%%=*}"
2307 optname="${optname#--}"
2308 optname=$(echo "$optname" | sed 's/-/_/g')
2309 if is_in $optname $CMDLINE_SET; then
2310 eval $optname='$optval'
2311 elif is_in $optname $CMDLINE_APPEND; then
2312 append $optname "$optval"
2313 else
2314 die_unknown $opt
2315 fi
2316 ;;
2317 esac
2318 done
2319
2320 disabled logging && logfile=/dev/null
2321
2322 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2323 set >> $logfile
2324
2325 test -n "$cross_prefix" && enable cross_compile
2326
2327 if enabled cross_compile; then
2328 test -n "$arch" && test -n "$target_os" ||
2329 die "Must specify target arch and OS when cross-compiling"
2330 fi
2331
2332 ar_default="${cross_prefix}${ar_default}"
2333 cc_default="${cross_prefix}${cc_default}"
2334 nm_default="${cross_prefix}${nm_default}"
2335 pkg_config_default="${cross_prefix}${pkg_config_default}"
2336 ranlib="${cross_prefix}${ranlib}"
2337 strip="${cross_prefix}${strip}"
2338
2339 sysinclude_default="${sysroot}/usr/include"
2340
2341 case "$toolchain" in
2342 clang-asan)
2343 cc_default="clang"
2344 add_cflags -fsanitize=address
2345 add_ldflags -fsanitize=address
2346 ;;
2347 clang-tsan)
2348 cc_default="clang"
2349 add_cflags -fsanitize=thread -pie
2350 add_ldflags -fsanitize=thread -pie
2351 ;;
2352 clang-usan)
2353 cc_default="clang"
2354 add_cflags -fsanitize=undefined
2355 add_ldflags -fsanitize=undefined
2356 ;;
2357 gcc-asan)
2358 cc_default="gcc"
2359 add_cflags -fsanitize=address
2360 add_ldflags -fsanitize=address
2361 ;;
2362 gcc-tsan)
2363 cc_default="gcc"
2364 add_cflags -fsanitize=thread -pie -fPIC
2365 add_ldflags -fsanitize=thread -pie -fPIC
2366 ;;
2367 gcc-usan)
2368 cc_default="gcc"
2369 add_cflags -fsanitize=undefined
2370 add_ldflags -fsanitize=undefined
2371 ;;
2372 valgrind-massif)
2373 target_exec_default="valgrind"
2374 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2375 ;;
2376 valgrind-memcheck)
2377 target_exec_default="valgrind"
2378 target_exec_args="--track-origins=yes --leak-check=full"
2379 ;;
2380 msvc)
2381 # Check whether the current MSVC version needs the C99 converter.
2382 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2383 # support enough of C99 to build libav. Default to the new
2384 # behaviour if the regexp was unable to match anything, since this
2385 # successfully parses the version number of existing supported
2386 # versions that require the converter (MSVC 2010 and 2012).
2387 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2388 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2389 cc_default="cl"
2390 else
2391 cc_default="c99wrap cl"
2392 fi
2393 ld_default="link"
2394 nm_default="dumpbin -symbols"
2395 ar_default="lib"
2396 target_os_default="win32"
2397 # Use a relative path for TMPDIR. This makes sure all the
2398 # ffconf temp files are written with a relative path, avoiding
2399 # issues with msys/win32 path conversion for MSVC parameters
2400 # such as -Fo<file> or -out:<file>.
2401 TMPDIR=.
2402 ;;
2403 icl)
2404 cc_default="icl"
2405 ld_default="xilink"
2406 nm_default="dumpbin -symbols"
2407 ar_default="xilib"
2408 target_os_default="win32"
2409 TMPDIR=.
2410 ;;
2411 gcov)
2412 add_cflags -fprofile-arcs -ftest-coverage
2413 add_ldflags -fprofile-arcs -ftest-coverage
2414 ;;
2415 hardened)
2416 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2417 add_ldflags -Wl,-z,relro -Wl,-z,now
2418 ;;
2419 ?*)
2420 die "Unknown toolchain $toolchain"
2421 ;;
2422 esac
2423
2424 set_default arch cc pkg_config sysinclude target_exec target_os
2425 enabled cross_compile || host_cc_default=$cc
2426 set_default host_cc
2427
2428 if ! $pkg_config --version >/dev/null 2>&1; then
2429 warn "$pkg_config not found, library detection may fail."
2430 pkg_config=false
2431 fi
2432
2433 exesuf() {
2434 case $1 in
2435 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2436 esac
2437 }
2438
2439 EXESUF=$(exesuf $target_os)
2440 HOSTEXESUF=$(exesuf $host_os)
2441
2442 # set temporary file name
2443 : ${TMPDIR:=$TEMPDIR}
2444 : ${TMPDIR:=$TMP}
2445 : ${TMPDIR:=/tmp}
2446
2447 if ! check_cmd mktemp -u XXXXXX; then
2448 # simple replacement for missing mktemp
2449 # NOT SAFE FOR GENERAL USE
2450 mktemp(){
2451 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2452 }
2453 fi
2454
2455 tmpfile(){
2456 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2457 (set -C; exec > $tmp) 2>/dev/null ||
2458 die "Unable to create temporary file in $TMPDIR."
2459 append TMPFILES $tmp
2460 eval $1=$tmp
2461 }
2462
2463 trap 'rm -f -- $TMPFILES' EXIT
2464
2465 tmpfile TMPASM .asm
2466 tmpfile TMPC .c
2467 tmpfile TMPE $EXESUF
2468 tmpfile TMPH .h
2469 tmpfile TMPO .o
2470 tmpfile TMPS .S
2471 tmpfile TMPSH .sh
2472 tmpfile TMPV .ver
2473
2474 unset -f mktemp
2475
2476 chmod +x $TMPE
2477
2478 # make sure we can execute files in $TMPDIR
2479 cat > $TMPSH 2>> $logfile <<EOF
2480 #! /bin/sh
2481 EOF
2482 chmod +x $TMPSH >> $logfile 2>&1
2483 if ! $TMPSH >> $logfile 2>&1; then
2484 cat <<EOF
2485 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2486 variable to another directory and make sure that it is not mounted noexec.
2487 EOF
2488 die "Sanity test failed."
2489 fi
2490
2491 ccc_flags(){
2492 for flag; do
2493 case $flag in
2494 -std=c99) echo -c99 ;;
2495 -mcpu=*) echo -arch ${flag#*=} ;;
2496 -mieee) echo -ieee ;;
2497 -O*|-fast) echo $flag ;;
2498 -fno-math-errno) echo -assume nomath_errno ;;
2499 -g) echo -g3 ;;
2500 -Wall) echo -msg_enable level2 ;;
2501 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2502 -Wl,*) echo $flag ;;
2503 -f*|-W*) ;;
2504 *) echo $flag ;;
2505 esac
2506 done
2507 }
2508
2509 cparser_flags(){
2510 for flag; do
2511 case $flag in
2512 -Wno-switch) echo -Wno-switch-enum ;;
2513 -Wno-format-zero-length) ;;
2514 -Wdisabled-optimization) ;;
2515 -Wno-pointer-sign) echo -Wno-other ;;
2516 *) echo $flag ;;
2517 esac
2518 done
2519 }
2520
2521 msvc_common_flags(){
2522 for flag; do
2523 case $flag in
2524 # In addition to specifying certain flags under the compiler
2525 # specific filters, they must be specified here as well or else the
2526 # generic catch all at the bottom will print the original flag.
2527 -Wall) ;;
2528 -std=c99) ;;
2529 # Common flags
2530 -fomit-frame-pointer) ;;
2531 -g) echo -Z7 ;;
2532 -fno-math-errno) ;;
2533 -fno-common) ;;
2534 -fno-signed-zeros) ;;
2535 -fPIC) ;;
2536 -mthumb) ;;
2537 -march=*) ;;
2538 -lz) echo zlib.lib ;;
2539 -lavifil32) echo vfw32.lib ;;
2540 -lavicap32) echo vfw32.lib user32.lib ;;
2541 -l*) echo ${flag#-l}.lib ;;
2542 *) echo $flag ;;
2543 esac
2544 done
2545 }
2546
2547 msvc_flags(){
2548 msvc_common_flags "$@"
2549 for flag; do
2550 case $flag in
2551 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2552 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2553 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2554 -wd4273 ;;
2555 esac
2556 done
2557 }
2558
2559 icl_flags(){
2560 msvc_common_flags "$@"
2561 for flag; do
2562 case $flag in
2563 # Despite what Intel's documentation says -Wall, which is supported
2564 # on Windows, does enable remarks so disable them here.
2565 -Wall) echo $flag -Qdiag-disable:remark ;;
2566 -std=c99) echo -Qstd=c99 ;;
2567 esac
2568 done
2569 }
2570
2571 pgi_flags(){
2572 for flag; do
2573 case $flag in
2574 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2575 -fomit-frame-pointer) echo -Mnoframe ;;
2576 -g) echo -gopt ;;
2577 *) echo $flag ;;
2578 esac
2579 done
2580 }
2581
2582 suncc_flags(){
2583 for flag; do
2584 case $flag in
2585 -march=*|-mcpu=*)
2586 case "${flag#*=}" in
2587 native) echo -xtarget=native ;;
2588 v9|niagara) echo -xarch=sparc ;;
2589 ultrasparc) echo -xarch=sparcvis ;;
2590 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2591 i586|pentium) echo -xchip=pentium ;;
2592 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2593 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2594 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2595 pentium4*) echo -xtarget=pentium4 ;;
2596 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2597 *-sse3) echo -xarch=sse3 ;;
2598 core2) echo -xarch=ssse3 -xchip=core2 ;;
2599 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2600 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2601 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2602 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2603 k8|opteron|athlon64|athlon-fx)
2604 echo -xarch=sse2a ;;
2605 athlon*) echo -xarch=pentium_proa ;;
2606 esac
2607 ;;
2608 -std=c99) echo -xc99 ;;
2609 -fomit-frame-pointer) echo -xregs=frameptr ;;
2610 -fPIC) echo -KPIC -xcode=pic32 ;;
2611 -W*,*) echo $flag ;;
2612 -f*-*|-W*|-mimpure-text) ;;
2613 -shared) echo -G ;;
2614 *) echo $flag ;;
2615 esac
2616 done
2617 }
2618
2619 tms470_flags(){
2620 for flag; do
2621 case $flag in
2622 -march=*|-mcpu=*)
2623 case "${flag#*=}" in
2624 armv7-a|cortex-a*) echo -mv=7a8 ;;
2625 armv7-r|cortex-r*) echo -mv=7r4 ;;
2626 armv7-m|cortex-m*) echo -mv=7m3 ;;
2627 armv6*|arm11*) echo -mv=6 ;;
2628 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2629 echo -mv=5e ;;
2630 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2631 esac
2632 ;;
2633 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2634 -mfpu=vfp) echo --float_support=vfpv2 ;;
2635 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2636 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2637 -msoft-float) echo --float_support=vfplib ;;
2638 -O[0-3]|-mf=*) echo $flag ;;
2639 -g) echo -g -mn ;;
2640 -pds=*) echo $flag ;;
2641 -D*|-I*) echo $flag ;;
2642 --gcc|--abi=*) echo $flag ;;
2643 -me) echo $flag ;;
2644 esac
2645 done
2646 }
2647
2648 probe_cc(){
2649 pfx=$1
2650 _cc=$2
2651
2652 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2653 unset _ld_o _ldflags _ld_lib _ld_path
2654 unset _depflags _DEPCMD _DEPFLAGS
2655 _flags_filter=echo
2656
2657 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2658 _type=llvm_gcc
2659 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2660 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2661 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2662 _cflags_speed='-O3'
2663 _cflags_size='-Os'
2664 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2665 _type=gcc
2666 gcc_version=$($_cc --version | head -n1)
2667 gcc_basever=$($_cc -dumpversion)
2668 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2669 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2670 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2671 if ! $_cc -dumpversion | grep -q '^2\.'; then
2672 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2673 fi
2674 _cflags_speed='-O3'
2675 _cflags_size='-Os'
2676 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2677 _type=icc
2678 _ident=$($_cc --version | head -n1)
2679 _depflags='-MMD'
2680 _cflags_speed='-O3'
2681 _cflags_size='-Os'
2682 _cflags_noopt='-O1'
2683 elif $_cc -v 2>&1 | grep -q xlc; then
2684 _type=xlc
2685 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2686 _cflags_speed='-O5'
2687 _cflags_size='-O5 -qcompact'
2688 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2689 _type=ccc
2690 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2691 _DEPFLAGS='-M'
2692 _cflags_speed='-fast'
2693 _cflags_size='-O1'
2694 _flags_filter=ccc_flags
2695 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2696 test -d "$sysroot" || die "No valid sysroot specified."
2697 _type=armcc
2698 _ident=$($_cc --vsn | head -n1)
2699 armcc_conf="$PWD/armcc.conf"
2700 $_cc --arm_linux_configure \
2701 --arm_linux_config_file="$armcc_conf" \
2702 --configure_sysroot="$sysroot" \
2703 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2704 die "Error creating armcc configuration file."
2705 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2706 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2707 as_default="${cross_prefix}gcc"
2708 _depflags='-MMD'
2709 _cflags_speed='-O3'
2710 _cflags_size='-Os'
2711 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2712 _type=tms470
2713 _ident=$($_cc -version | head -n1 | tr -s ' ')
2714 _flags='--gcc --abi=eabi -me'
2715 _cc_e='-ppl -fe=$@'
2716 _cc_o='-fe=$@'
2717 _depflags='-ppa -ppd=$(@:.o=.d)'
2718 _cflags_speed='-O3 -mf=5'
2719 _cflags_size='-O3 -mf=2'
2720 _flags_filter=tms470_flags
2721 elif $_cc -v 2>&1 | grep -q clang; then
2722 _type=clang
2723 _ident=$($_cc --version | head -n1)
2724 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2725 _cflags_speed='-O3'
2726 _cflags_size='-Os'
2727 elif $_cc -V 2>&1 | grep -q Sun; then
2728 _type=suncc
2729 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2730 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2731 _DEPFLAGS='-xM1 -xc99'
2732 _ldflags='-std=c99'
2733 _cflags_speed='-O5'
2734 _cflags_size='-O5 -xspace'
2735 _flags_filter=suncc_flags
2736 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2737 _type=pathscale
2738 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2739 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2740 _cflags_speed='-O2'
2741 _cflags_size='-Os'
2742 _flags_filter='filter_out -Wdisabled-optimization'
2743 elif $_cc -v 2>&1 | grep -q Open64; then
2744 _type=open64
2745 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2746 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2747 _cflags_speed='-O2'
2748 _cflags_size='-Os'
2749 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2750 elif $_cc -V 2>&1 | grep -q Portland; then
2751 _type=pgi
2752 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2753 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2754 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2755 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2756 _cflags_noopt="-O1"
2757 _flags_filter=pgi_flags
2758 elif $_cc 2>&1 | grep -q Microsoft; then
2759 _type=msvc
2760 _ident=$($cc 2>&1 | head -n1)
2761 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2762 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2763 _cflags_speed="-O2"
2764 _cflags_size="-O1"
2765 if $_cc 2>&1 | grep -q Linker; then
2766 _ld_o='-out:$@'
2767 else
2768 _ld_o='-Fe$@'
2769 fi
2770 _cc_o='-Fo$@'
2771 _cc_e='-P -Fi$@'
2772 _flags_filter=msvc_flags
2773 _ld_lib='lib%.a'
2774 _ld_path='-libpath:'
2775 _flags='-nologo'
2776 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2777 if [ $pfx = hostcc ]; then
2778 append _cflags -Dsnprintf=_snprintf
2779 fi
2780 elif $_cc 2>&1 | grep -q Intel; then
2781 _type=icl
2782 _ident=$($cc 2>&1 | head -n1)
2783 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2784 # Not only is O3 broken on 13.x+ but it is slower on all previous
2785 # versions (tested) as well.
2786 _cflags_speed="-O2"
2787 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2788 if $_cc 2>&1 | grep -q Linker; then
2789 _ld_o='-out:$@'
2790 else
2791 _ld_o='-Fe$@'
2792 fi
2793 _cc_o='-Fo$@'
2794 _cc_e='-P'
2795 _flags_filter=icl_flags
2796 _ld_lib='lib%.a'
2797 _ld_path='-libpath:'
2798 # -Qdiag-error to make icl error when seeing certain unknown arguments
2799 _flags='-nologo -Qdiag-error:4044,10157'
2800 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2801 # with MSVC which enables it by default.
2802 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2803 if [ $pfx = hostcc ]; then
2804 append _cflags -Dsnprintf=_snprintf
2805 fi
2806 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2807 _type=cparser
2808 _ident=$($_cc --version | head -n1)
2809 _depflags='-MMD'
2810 _cflags_speed='-O4'
2811 _cflags_size='-O2'
2812 _flags_filter=cparser_flags
2813 fi
2814
2815 eval ${pfx}_type=\$_type
2816 eval ${pfx}_ident=\$_ident
2817 }
2818
2819 set_ccvars(){
2820 eval ${1}_C=\${_cc_c-\${${1}_C}}
2821 eval ${1}_E=\${_cc_e-\${${1}_E}}
2822 eval ${1}_O=\${_cc_o-\${${1}_O}}
2823
2824 if [ -n "$_depflags" ]; then
2825 eval ${1}_DEPFLAGS=\$_depflags
2826 else
2827 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2828 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2829 eval DEP${1}FLAGS=\$_flags
2830 fi
2831 }
2832
2833 probe_cc cc "$cc"
2834 cflags_filter=$_flags_filter
2835 cflags_speed=$_cflags_speed
2836 cflags_size=$_cflags_size
2837 cflags_noopt=$_cflags_noopt
2838 add_cflags $_flags $_cflags
2839 cc_ldflags=$_ldflags
2840 set_ccvars CC
2841
2842 probe_cc hostcc "$host_cc"
2843 host_cflags_filter=$_flags_filter
2844 add_host_cflags $_flags $_cflags
2845 set_ccvars HOSTCC
2846
2847 test -n "$cc_type" && enable $cc_type ||
2848 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2849
2850 : ${as_default:=$cc}
2851 : ${dep_cc_default:=$cc}
2852 : ${ld_default:=$cc}
2853 : ${host_ld_default:=$host_cc}
2854 set_default ar as dep_cc ld host_ld
2855
2856 probe_cc as "$as"
2857 asflags_filter=$_flags_filter
2858 add_asflags $_flags $_cflags
2859 set_ccvars AS
2860
2861 probe_cc ld "$ld"
2862 ldflags_filter=$_flags_filter
2863 add_ldflags $_flags $_ldflags
2864 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2865 LD_O=${_ld_o-$LD_O}
2866 LD_LIB=${_ld_lib-$LD_LIB}
2867 LD_PATH=${_ld_path-$LD_PATH}
2868
2869 probe_cc hostld "$host_ld"
2870 host_ldflags_filter=$_flags_filter
2871 add_host_ldflags $_flags $_ldflags
2872 HOSTLD_O=${_ld_o-$HOSTLD_O}
2873
2874 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2875 probe_cc depcc "$dep_cc"
2876 CCDEP=${_DEPCMD:-$DEPCMD}
2877 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2878 DEPCCFLAGS=$_flags
2879 fi
2880
2881 if $ar 2>&1 | grep -q Microsoft; then
2882 arflags="-nologo"
2883 ar_o='-out:$@'
2884 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2885 arflags="rq"
2886 ar_o='$@'
2887 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2888 arflags='-Xany -r -c'
2889 ar_o='$@'
2890 else
2891 arflags="rc"
2892 ar_o='$@'
2893 fi
2894
2895 add_cflags $extra_cflags
2896 add_asflags $extra_cflags
2897
2898 if test -n "$sysroot"; then
2899 case "$cc_type" in
2900 gcc|llvm_gcc|clang)
2901 add_cppflags --sysroot="$sysroot"
2902 add_ldflags --sysroot="$sysroot"
2903 ;;
2904 tms470)
2905 add_cppflags -I"$sysinclude"
2906 add_ldflags --sysroot="$sysroot"
2907 ;;
2908 esac
2909 fi
2910
2911 if test "$cpu" = host; then
2912 enabled cross_compile &&
2913 die "--cpu=host makes no sense when cross-compiling."
2914
2915 case "$cc_type" in
2916 gcc|llvm_gcc)
2917 check_native(){
2918 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2919 sed -n "/cc1.*$1=/{
2920 s/.*$1=\\([^ ]*\\).*/\\1/
2921 p
2922 q
2923 }" $TMPE
2924 }
2925 cpu=$(check_native -march || check_native -mcpu)
2926 ;;
2927 esac
2928
2929 test "${cpu:-host}" = host &&
2930 die "--cpu=host not supported with compiler $cc"
2931 fi
2932
2933 # Deal with common $arch aliases
2934 case "$arch" in
2935 aarch64|arm64)
2936 arch="aarch64"
2937 ;;
2938 arm*)
2939 arch="arm"
2940 ;;
2941 mips*|IP*)
2942 arch="mips"
2943 ;;
2944 parisc*|hppa*)
2945 arch="parisc"
2946 ;;
2947 "Power Macintosh"|ppc*|powerpc*)
2948 arch="ppc"
2949 ;;
2950 s390|s390x)
2951 arch="s390"
2952 ;;
2953 sh4|sh)
2954 arch="sh4"
2955 ;;
2956 sun4u|sparc*)
2957 arch="sparc"
2958 ;;
2959 tilegx|tile-gx)
2960 arch="tilegx"
2961 ;;
2962 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2963 arch="x86"
2964 ;;
2965 esac
2966
2967 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2968 enable $arch
2969
2970 # Add processor-specific flags
2971 if enabled aarch64; then
2972
2973 case $cpu in
2974 armv*)
2975 cpuflags="-march=$cpu"
2976 ;;
2977 *)
2978 cpuflags="-mcpu=$cpu"
2979 ;;
2980 esac
2981
2982 elif enabled alpha; then
2983
2984 cpuflags="-mcpu=$cpu"
2985
2986 elif enabled arm; then
2987
2988 check_arm_arch() {
2989 check_cpp_condition stddef.h \
2990 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2991 $cpuflags
2992 }
2993
2994 probe_arm_arch() {
2995 if check_arm_arch 4; then echo armv4;
2996 elif check_arm_arch 4T; then echo armv4t;
2997 elif check_arm_arch 5; then echo armv5;
2998 elif check_arm_arch 5E; then echo armv5e;
2999 elif check_arm_arch 5T; then echo armv5t;
3000 elif check_arm_arch 5TE; then echo armv5te;
3001 elif check_arm_arch 5TEJ; then echo armv5te;
3002 elif check_arm_arch 6; then echo armv6;
3003 elif check_arm_arch 6J; then echo armv6j;
3004 elif check_arm_arch 6K; then echo armv6k;
3005 elif check_arm_arch 6Z; then echo armv6z;
3006 elif check_arm_arch 6ZK; then echo armv6zk;
3007 elif check_arm_arch 6T2; then echo armv6t2;
3008 elif check_arm_arch 7; then echo armv7;
3009 elif check_arm_arch 7A 7_A; then echo armv7-a;
3010 elif check_arm_arch 7R 7_R; then echo armv7-r;
3011 elif check_arm_arch 7M 7_M; then echo armv7-m;
3012 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3013 elif check_arm_arch 8A 8_A; then echo armv8-a;
3014 fi
3015 }
3016
3017 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3018
3019 case $cpu in
3020 armv*)
3021 cpuflags="-march=$cpu"
3022 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3023 ;;
3024 *)
3025 cpuflags="-mcpu=$cpu"
3026 case $cpu in
3027 cortex-a*) subarch=armv7a ;;
3028 cortex-r*) subarch=armv7r ;;
3029 cortex-m*) enable thumb; subarch=armv7m ;;
3030 arm11*) subarch=armv6 ;;
3031 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3032 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3033 *) subarch=$(probe_arm_arch) ;;
3034 esac
3035 ;;
3036 esac
3037
3038 case "$subarch" in
3039 armv5t*) enable fast_clz ;;
3040 armv[6-8]*) enable fast_clz fast_unaligned ;;
3041 esac
3042
3043 elif enabled avr32; then
3044
3045 case $cpu in
3046 ap7[02]0[0-2])
3047 subarch="avr32_ap"
3048 cpuflags="-mpart=$cpu"
3049 ;;
3050 ap)
3051 subarch="avr32_ap"
3052 cpuflags="-march=$cpu"
3053 ;;
3054 uc3[ab]*)
3055 subarch="avr32_uc"
3056 cpuflags="-mcpu=$cpu"
3057 ;;
3058 uc)
3059 subarch="avr32_uc"
3060 cpuflags="-march=$cpu"
3061 ;;
3062 esac
3063
3064 elif enabled bfin; then
3065
3066 cpuflags="-mcpu=$cpu"
3067
3068 elif enabled mips; then
3069
3070 cpuflags="-march=$cpu"
3071
3072 elif enabled ppc; then
3073
3074 case $(tolower $cpu) in
3075 601|ppc601|powerpc601)
3076 cpuflags="-mcpu=601"
3077 disable altivec
3078 ;;
3079 603*|ppc603*|powerpc603*)
3080 cpuflags="-mcpu=603"
3081 disable altivec
3082 ;;
3083 604*|ppc604*|powerpc604*)
3084 cpuflags="-mcpu=604"
3085 disable altivec
3086 ;;
3087 g3|75*|ppc75*|powerpc75*)
3088 cpuflags="-mcpu=750"
3089 disable altivec
3090 ;;
3091 g4|745*|ppc745*|powerpc745*)
3092 cpuflags="-mcpu=7450"
3093 ;;
3094 74*|ppc74*|powerpc74*)
3095 cpuflags="-mcpu=7400"
3096 ;;
3097 g5|970|ppc970|powerpc970)
3098 cpuflags="-mcpu=970"
3099 ;;
3100 power[3-7]*)
3101 cpuflags="-mcpu=$cpu"
3102 ;;
3103 cell)
3104 cpuflags="-mcpu=cell"
3105 enable ldbrx
3106 ;;
3107 e500mc)
3108 cpuflags="-mcpu=e500mc"
3109 disable altivec
3110 ;;
3111 e500v2)
3112 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3113 disable altivec
3114 ;;
3115 e500)
3116 cpuflags="-mcpu=8540 -mhard-float"
3117 disable altivec
3118 ;;
3119 esac
3120
3121 elif enabled sparc; then
3122
3123 case $cpu in
3124 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3125 cpuflags="-mcpu=$cpu"
3126 disable vis
3127 ;;
3128 ultrasparc*|niagara[234])
3129 cpuflags="-mcpu=$cpu"
3130 ;;
3131 esac
3132
3133 elif enabled x86; then
3134
3135 case $cpu in
3136 i[345]86|pentium)
3137 cpuflags="-march=$cpu"
3138 disable mmx
3139 ;;
3140 # targets that do NOT support nopl and conditional mov (cmov)
3141 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3142 cpuflags="-march=$cpu"
3143 disable i686
3144 ;;
3145 # targets that do support nopl and conditional mov (cmov)
3146 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3147 cpuflags="-march=$cpu"
3148 enable i686
3149 enable fast_cmov
3150 ;;
3151 # targets that do support conditional mov but on which it's slow
3152 pentium4|pentium4m|prescott|nocona)
3153 cpuflags="-march=$cpu"
3154 enable i686
3155 disable fast_cmov
3156 ;;
3157 esac
3158
3159 fi
3160
3161 if [ "$cpu" != generic ]; then
3162 add_cflags $cpuflags
3163 add_asflags $cpuflags
3164 fi
3165
3166 # compiler sanity check
3167 check_exec <<EOF
3168 int main(void){ return 0; }
3169 EOF
3170 if test "$?" != 0; then
3171 echo "$cc is unable to create an executable file."
3172 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3173 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3174 echo "Only do this if you know what cross compiling means."
3175 fi
3176 die "C compiler test failed."
3177 fi
3178
3179 add_cppflags -D_ISOC99_SOURCE
3180 check_cflags -std=c99
3181 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3182 #include <stdlib.h>
3183 EOF
3184 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3185 #include <stdlib.h>
3186 EOF
3187
3188 add_host_cppflags -D_ISOC99_SOURCE
3189 check_host_cflags -std=c99
3190 check_host_cflags -Wall
3191 check_host_cflags -O3
3192
3193 check_64bit(){
3194 arch32=$1
3195 arch64=$2
3196 expr=$3
3197 check_code cc "" "int test[2*($expr) - 1]" &&
3198 subarch=$arch64 || subarch=$arch32
3199 }
3200
3201 case "$arch" in
3202 aarch64|alpha|ia64)
3203 spic=$shared
3204 ;;
3205 mips)
3206 check_64bit mips mips64 '_MIPS_SIM > 1'
3207 spic=$shared
3208 ;;
3209 parisc)
3210 check_64bit parisc parisc64 'sizeof(void *) > 4'
3211 spic=$shared
3212 ;;
3213 ppc)
3214 check_64bit ppc ppc64 'sizeof(void *) > 4'
3215 spic=$shared
3216 ;;
3217 sparc)
3218 check_64bit sparc sparc64 'sizeof(void *) > 4'
3219 spic=$shared
3220 ;;
3221 x86)
3222 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3223 if test "$subarch" = "x86_64"; then
3224 spic=$shared
3225 fi
3226 ;;
3227 esac
3228
3229 enable $subarch
3230 enabled spic && enable_weak pic
3231
3232 # OS specific
3233 case $target_os in
3234 aix)
3235 SHFLAGS=-shared
3236 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3237 enabled shared && add_ldflags -Wl,-brtl
3238 ;;
3239 haiku)
3240 prefix_default="/boot/common"
3241 network_extralibs="-lnetwork"
3242 host_libs=
3243 ;;
3244 sunos)
3245 SHFLAGS='-shared -Wl,-h,$$(@F)'
3246 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3247 network_extralibs="-lsocket -lnsl"
3248 # When using suncc to build, the Solaris linker will mark
3249 # an executable with each instruction set encountered by
3250 # the Solaris assembler. As our libraries contain their own
3251 # guards for processor-specific code, instead suppress
3252 # generation of the HWCAPS ELF section on Solaris x86 only.
3253 enabled_all suncc x86 &&
3254 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3255 add_ldflags -Wl,-M,mapfile
3256 nm_default='nm -P -g'
3257 ;;
3258 netbsd)
3259 disable symver
3260 oss_indev_extralibs="-lossaudio"
3261 oss_outdev_extralibs="-lossaudio"
3262 ;;
3263 openbsd|bitrig)
3264 disable symver
3265 SHFLAGS='-shared'
3266 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3267 SLIB_INSTALL_LINKS=
3268 oss_indev_extralibs="-lossaudio"
3269 oss_outdev_extralibs="-lossaudio"
3270 ;;
3271 dragonfly)
3272 disable symver
3273 ;;
3274 freebsd)
3275 ;;
3276 bsd/os)
3277 add_extralibs -lpoll -lgnugetopt
3278 ;;
3279 darwin)
3280 gas="gas-preprocessor.pl $cc"
3281 enabled ppc && add_asflags -force_cpusubtype_ALL
3282 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3283 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3284 add_ldflags -Wl,-dynamic,-search_paths_first
3285 SLIBSUF=".dylib"
3286 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3287 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3288 objformat="macho"
3289 enabled x86_64 && objformat="macho64"
3290 enabled_any pic shared ||
3291 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3292 ;;
3293 mingw32*)
3294 if test $target_os = "mingw32ce"; then
3295 disable network
3296 else
3297 target_os=mingw32
3298 fi
3299 LIBTARGET=i386
3300 if enabled x86_64; then
3301 LIBTARGET="i386:x86-64"
3302 elif enabled arm; then
3303 LIBTARGET=arm-wince
3304 fi
3305 check_ldflags -Wl,--nxcompat
3306 check_ldflags -Wl,--dynamicbase
3307 shlibdir_default="$bindir_default"
3308 SLIBPREF=""
3309 SLIBSUF=".dll"
3310 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3311 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3312 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3313 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3314 SLIB_INSTALL_LINKS=
3315 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3316 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3317 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3318 objformat="win32"
3319 dlltool="${cross_prefix}dlltool"
3320 ranlib=:
3321 enable dos_paths
3322 ;;
3323 win32|win64)
3324 disable symver
3325 if enabled shared; then
3326 # Link to the import library instead of the normal static library
3327 # for shared libs.
3328 LD_LIB='%.lib'
3329 # Cannot build both shared and static libs with MSVC or icl.
3330 disable static
3331 fi
3332 shlibdir_default="$bindir_default"
3333 SLIBPREF=""
3334 SLIBSUF=".dll"
3335 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3336 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3337 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3338 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3339 SLIB_INSTALL_LINKS=
3340 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3341 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3342 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3343 objformat="win32"
3344 ranlib=:
3345 enable dos_paths
3346 ;;
3347 cygwin*)
3348 target_os=cygwin
3349 shlibdir_default="$bindir_default"
3350 SLIBPREF="cyg"
3351 SLIBSUF=".dll"
3352 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3353 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3354 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3355 SLIB_INSTALL_LINKS=
3356 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3357 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3358 objformat="win32"
3359 enable dos_paths
3360 ;;
3361 *-dos|freedos|opendos)
3362 network_extralibs="-lsocket"
3363 objformat="coff"
3364 enable dos_paths
3365 add_cppflags -U__STRICT_ANSI__
3366 ;;
3367 linux)
3368 enable dv1394
3369 ;;
3370 irix*)
3371 target_os=irix
3372 ranlib="echo ignoring ranlib"
3373 ;;
3374 os/2*)
3375 ln_s="cp -f"
3376 objformat="aout"
3377 add_cppflags -D_GNU_SOURCE
3378 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3379 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3380 LIBSUF="_s.a"
3381 SLIBPREF=""
3382 SLIBSUF=".dll"
3383 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3384 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3385 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3386 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3387 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3388 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3389 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3390 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3391 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3392 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3393 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3394 enable dos_paths
3395 ;;
3396 gnu/kfreebsd)
3397 add_cppflags -D_BSD_SOURCE
3398 ;;
3399 gnu)
3400 ;;
3401 qnx)
3402 add_cppflags -D_QNX_SOURCE
3403 network_extralibs="-lsocket"
3404 ;;
3405 symbian)
3406 SLIBSUF=".dll"
3407 enable dos_paths
3408 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3409 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3410 add_ldflags -Wl,--target1-abs,--no-undefined \
3411 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3412 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3413 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3414 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3415 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3416 ;;
3417 osf1)
3418 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3419 ;;
3420 minix)
3421 ;;
3422 plan9)
3423 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3424 -D_REENTRANT_SOURCE \
3425 -D_RESEARCH_SOURCE \
3426 -DFD_SETSIZE=96 \
3427 -DHAVE_SOCK_OPTS
3428 add_compat strtod.o strtod=avpriv_strtod
3429 network_extralibs='-lbsd'
3430 exeobjs=compat/plan9/main.o
3431 disable avserver
3432 cp_f='cp'
3433 ;;
3434 none)
3435 ;;
3436 *)
3437 die "Unknown OS '$target_os'."
3438 ;;
3439 esac
3440
3441 # determine libc flavour
3442
3443 probe_libc(){
3444 pfx=$1
3445 pfx_no_=${pfx%_}
3446 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3447 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3448 eval ${pfx}libc_type=uclibc
3449 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3450 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3451 eval ${pfx}libc_type=glibc
3452 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3453 # MinGW headers can be installed on Cygwin, so check for newlib first.
3454 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3455 eval ${pfx}libc_type=newlib
3456 add_${pfx}cppflags -U__STRICT_ANSI__
3457 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3458 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3459 eval ${pfx}libc_type=mingw64
3460 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3461 eval test \$${pfx_no_}cc_type = "gcc" &&
3462 add_${pfx}cppflags -D__printf__=__gnu_printf__
3463 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3464 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3465 eval ${pfx}libc_type=mingw32
3466 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3467 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3468 die "ERROR: MinGW32 runtime version must be >= 3.15."
3469 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3470 eval test \$${pfx_no_}cc_type = "gcc" &&
3471 add_${pfx}cppflags -D__printf__=__gnu_printf__
3472 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3473 eval ${pfx}libc_type=msvcrt
3474 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3475 # 0x601 by default unless something else is set by the user.
3476 # This can easily lead to us detecting functions only present
3477 # in such new versions and producing binaries requiring windows 7.0.
3478 # Therefore explicitly set the default to XP unless the user has
3479 # set something else on the command line.
3480 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3481 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3482 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3483 eval ${pfx}libc_type=klibc
3484 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3485 eval ${pfx}libc_type=bionic
3486 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3487 eval ${pfx}libc_type=solaris
3488 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3489 fi
3490 }
3491
3492 probe_libc
3493 test -n "$libc_type" && enable libc_$libc_type
3494 probe_libc host_
3495 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3496
3497 case $libc_type in
3498 bionic)
3499 add_compat strtod.o strtod=avpriv_strtod
3500 ;;
3501 msvcrt)
3502 add_compat strtod.o strtod=avpriv_strtod
3503 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3504 _snprintf=avpriv_snprintf \
3505 vsnprintf=avpriv_vsnprintf
3506 ;;
3507 esac
3508
3509 # hacks for compiler/libc/os combinations
3510
3511 if enabled_all tms470 libc_glibc; then
3512 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3513 add_cppflags -D__USER_LABEL_PREFIX__=
3514 add_cppflags -D__builtin_memset=memset
3515 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3516 add_cflags -pds=48 # incompatible redefinition of macro
3517 fi
3518
3519 if enabled_all ccc libc_glibc; then
3520 add_ldflags -Wl,-z,now # calls to libots crash without this
3521 fi
3522
3523 esc(){
3524 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3525 }
3526
3527 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3528
3529 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3530
3531 set_default $PATHS_LIST
3532 set_default nm
3533
3534 # we need to build at least one lib type
3535 if ! enabled_any static shared; then
3536 cat <<EOF
3537 At least one library type must be built.
3538 Specify --enable-static to build the static libraries or --enable-shared to
3539 build the shared libraries as well. To only build the shared libraries specify
3540 --disable-static in addition to --enable-shared.
3541 EOF
3542 exit 1;
3543 fi
3544
3545 die_license_disabled() {
3546 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3547 }
3548
3549 die_license_disabled gpl libcdio
3550 die_license_disabled gpl libx264
3551 die_license_disabled gpl libx265
3552 die_license_disabled gpl libxavs
3553 die_license_disabled gpl libxvid
3554 die_license_disabled gpl x11grab
3555
3556 die_license_disabled nonfree libfaac
3557 die_license_disabled nonfree libfdk_aac
3558 die_license_disabled nonfree openssl
3559
3560 die_license_disabled version3 libopencore_amrnb
3561 die_license_disabled version3 libopencore_amrwb
3562 die_license_disabled version3 libvo_aacenc
3563 die_license_disabled version3 libvo_amrwbenc
3564
3565 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3566
3567 disabled optimizations || check_cflags -fomit-frame-pointer
3568
3569 enable_weak_pic() {
3570 disabled pic && return
3571 enable pic
3572 add_cppflags -DPIC
3573 case "$target_os" in
3574 mingw*|cygwin*)
3575 ;;
3576 *)
3577 add_cflags -fPIC
3578 ;;
3579 esac
3580 add_asflags -fPIC
3581 }
3582
3583 enabled pic && enable_weak_pic
3584
3585 check_cc <<EOF || die "Symbol mangling check failed."
3586 int ff_extern;
3587 EOF
3588 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3589 extern_prefix=${sym%%ff_extern*}
3590
3591 check_cc <<EOF && enable_weak inline_asm
3592 void foo(void) { __asm__ volatile ("" ::); }
3593 EOF
3594
3595 _restrict=
3596 for restrict_keyword in restrict __restrict__ __restrict; do
3597 check_cc <<EOF && _restrict=$restrict_keyword && break
3598 void foo(char * $restrict_keyword p);
3599 EOF
3600 done
3601
3602 check_cc <<EOF && enable pragma_deprecated
3603 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3604 EOF
3605
3606 check_cc <<EOF && enable attribute_packed
3607 struct { int x; } __attribute__((packed)) x;
3608 EOF
3609
3610 check_cc <<EOF && enable attribute_may_alias
3611 union { int x; } __attribute__((may_alias)) x;
3612 EOF
3613
3614 check_cc <<EOF || die "endian test failed"
3615 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3616 EOF
3617 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3618
3619 check_inline_asm inline_asm_labels '"1:\n"'
3620
3621 if enabled aarch64; then
3622 # internal assembler in clang 3.3 does not support this instruction
3623 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3624 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3625
3626 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3627
3628 elif enabled alpha; then
3629
3630 check_cflags -mieee
3631
3632 elif enabled arm; then
3633
3634 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3635 enabled thumb && check_cflags -mthumb || check_cflags -marm
3636 nogas=die
3637
3638 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3639 enable vfp_args
3640 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3641 case "${cross_prefix:-$cc}" in
3642 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3643 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3644 __asm__ (".eabi_attribute 28, 1");
3645 int main(void) { return 0; }
3646 EOF
3647 esac
3648 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3649 fi
3650
3651 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3652 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3653 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3654 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3655 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3656 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3657
3658 [ $target_os = linux ] ||
3659 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3660 $ARCH_EXT_LIST_ARM
3661
3662 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3663 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3664
3665 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3666
3667 elif enabled mips; then
3668
3669 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3670
3671 elif enabled parisc; then
3672
3673 if enabled gcc; then
3674 case $($cc -dumpversion) in
3675 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3676 esac
3677 fi
3678
3679 elif enabled ppc; then
3680
3681 enable local_aligned_8 local_aligned_16
3682
3683 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3684 check_inline_asm ibm_asm '"add 0, 0, 0"'
3685 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3686 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3687
3688 # AltiVec flags: The FSF version of GCC differs from the Apple version
3689 if enabled altivec; then
3690 nogas=warn
3691 check_cflags -maltivec -mabi=altivec &&
3692 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3693 check_cflags -faltivec
3694
3695 # check if our compiler supports Motorola AltiVec C API
3696 check_cc <<EOF || disable altivec
3697 $inc_altivec_h
3698 int main(void) {
3699 vector signed int v1 = (vector signed int) { 0 };
3700 vector signed int v2 = (vector signed int) { 1 };
3701 v1 = vec_add(v1, v2);
3702 return 0;
3703 }
3704 EOF
3705
3706 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3707 fi
3708
3709 elif enabled sparc; then
3710
3711 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3712
3713 elif enabled x86; then
3714
3715 check_builtin rdtsc intrin.h "__rdtsc()"
3716 check_builtin mm_empty mmintrin.h "_mm_empty()"
3717
3718 enable local_aligned_8 local_aligned_16
3719
3720 # check whether EBP is available on x86
3721 # As 'i' is stored on the stack, this program will crash
3722 # if the base pointer is used to access it because the
3723 # base pointer is cleared in the inline assembly code.
3724 check_exec_crash <<EOF && enable ebp_available
3725 volatile int i=0;
3726 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3727 return i;
3728 EOF
3729
3730 # check whether EBX is available on x86
3731 check_inline_asm ebx_available '""::"b"(0)' &&
3732 check_inline_asm ebx_available '"":::"%ebx"'
3733
3734 # check whether xmm clobbers are supported
3735 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3736
3737 # check whether binutils is new enough to compile SSSE3/MMXEXT
3738 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3739 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3740
3741 if ! disabled_any asm mmx yasm; then
3742 if check_cmd $yasmexe --version; then
3743 enabled x86_64 && yasm_extra="-m amd64"
3744 yasm_debug="-g dwarf2"
3745 elif check_cmd nasm -v; then
3746 yasmexe=nasm
3747 yasm_debug="-g -F dwarf"
3748 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3749 fi
3750
3751 YASMFLAGS="-f $objformat $yasm_extra"
3752 enabled pic && append YASMFLAGS "-DPIC"
3753 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3754 case "$objformat" in
3755 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3756 esac
3757
3758 check_yasm "movbe ecx, [5]" && enable yasm ||
3759 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3760 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3761 check_yasm "CPU amdnop" || disable cpunop
3762 fi
3763
3764 case "$cpu" in
3765 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3766 disable fast_clz
3767 ;;
3768 esac
3769
3770 fi
3771
3772 if enabled asm; then
3773 as=${gas:=$as}
3774 check_as <<EOF && enable gnu_as || \
3775 $nogas "GNU assembler not found, install gas-preprocessor"
3776 .macro m n
3777 \n: .int 0
3778 .endm
3779 m x
3780 EOF
3781 fi
3782
3783 check_ldflags -Wl,--as-needed
3784
3785 if check_func dlopen; then
3786 ldl=
3787 elif check_func dlopen -ldl; then
3788 ldl=-ldl
3789 fi
3790
3791 if ! disabled network; then
3792 check_type "sys/types.h sys/socket.h" socklen_t
3793 check_type netdb.h "struct addrinfo"
3794 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3795 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3796 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3797 check_type netinet/in.h "struct sockaddr_in6"
3798 check_type poll.h "struct pollfd"
3799 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3800 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3801 check_type netinet/sctp.h "struct sctp_event_subscribe"
3802 check_func getaddrinfo $network_extralibs
3803 check_func getservbyport $network_extralibs
3804 check_func inet_aton $network_extralibs
3805 # Prefer arpa/inet.h over winsock2
3806 if check_header arpa/inet.h ; then
3807 check_func closesocket
3808 elif check_header winsock2.h ; then
3809 check_func_headers winsock2.h closesocket -lws2 &&
3810 network_extralibs="-lws2" ||
3811 { check_func_headers winsock2.h closesocket -lws2_32 &&
3812 network_extralibs="-lws2_32"; } || disable winsock2_h network
3813 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3814 check_type ws2tcpip.h socklen_t
3815 check_type ws2tcpip.h "struct addrinfo"
3816 check_type ws2tcpip.h "struct group_source_req"
3817 check_type ws2tcpip.h "struct ip_mreq_source"
3818 check_type ws2tcpip.h "struct ipv6_mreq"
3819 check_type winsock2.h "struct pollfd"
3820 check_type ws2tcpip.h "struct sockaddr_in6"
3821 check_type ws2tcpip.h "struct sockaddr_storage"
3822 check_struct winsock2.h "struct sockaddr" sa_len
3823 else
3824 disable network
3825 fi
3826 fi
3827
3828 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3829 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3830
3831 check_func fcntl
3832 check_func fork
3833 check_func_headers stdlib.h getenv
3834 check_func gethrtime
3835 check_func getopt
3836 check_func getrusage
3837 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3838 check_func gettimeofday
3839 check_func isatty
3840 check_func localtime_r
3841 check_func ${malloc_prefix}memalign && enable memalign
3842 check_func mkstemp
3843 check_func mmap
3844 check_func mprotect
3845 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3846 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3847 check_func setrlimit
3848 check_func strerror_r
3849 check_func strptime
3850 check_func strtok_r
3851 check_func sched_getaffinity
3852 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3853 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3854 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3855 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3856 check_func sysconf
3857 check_func sysctl
3858 check_func usleep
3859 check_func_headers io.h setmode
3860 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3861 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3862 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3863 check_func_headers windows.h GetProcessAffinityMask
3864 check_func_headers windows.h GetProcessTimes
3865 check_func_headers windows.h GetSystemTimeAsFileTime
3866 check_func_headers windows.h MapViewOfFile
3867 check_func_headers windows.h SetConsoleTextAttribute
3868 check_func_headers windows.h Sleep
3869 check_func_headers windows.h VirtualAlloc
3870
3871 check_header direct.h
3872 check_header dlfcn.h
3873 check_header dxva.h
3874 check_header dxva2api.h
3875 check_header io.h
3876 check_header malloc.h
3877 check_header poll.h
3878 check_header sys/mman.h
3879 check_header sys/param.h
3880 check_header sys/resource.h
3881 check_header sys/select.h
3882 check_header sys/time.h
3883 check_header sys/un.h
3884 check_header unistd.h
3885 check_header vdpau/vdpau.h
3886 check_header vdpau/vdpau_x11.h
3887 check_header VideoDecodeAcceleration/VDADecoder.h
3888 check_header windows.h
3889 check_header X11/extensions/XvMClib.h
3890
3891 if ! disabled w32threads && ! enabled pthreads; then
3892 check_func_headers "windows.h process.h" _beginthreadex &&
3893 enable w32threads || disable w32threads
3894 fi
3895
3896 # check for some common methods of building with pthread support
3897 # do this before the optional library checks as some of them require pthreads
3898 if ! disabled pthreads && ! enabled w32threads; then
3899 enable pthreads
3900 if check_func pthread_join -pthread; then
3901 add_cflags -pthread
3902 add_extralibs -pthread
3903 elif check_func pthread_join -pthreads; then
3904 add_cflags -pthreads
3905 add_extralibs -pthreads
3906 elif check_func pthread_join -lpthreadGC2; then
3907 add_extralibs -lpthreadGC2
3908 elif check_lib pthread.h pthread_join -lpthread; then
3909 :
3910 elif ! check_func pthread_join; then
3911 disable pthreads
3912 fi
3913 fi
3914
3915 for thread in $THREADS_LIST; do
3916 if enabled $thread; then
3917 test -n "$thread_type" &&
3918 die "ERROR: Only one thread type must be selected." ||
3919 thread_type="$thread"
3920 fi
3921 done
3922
3923 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3924 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3925
3926 check_lib math.h sin -lm && LIBM="-lm"
3927 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3928
3929 atan2f_args=2
3930 ldexpf_args=2
3931 powf_args=2
3932
3933 for func in $MATH_FUNCS; do
3934 eval check_mathfunc $func \${${func}_args:-1}
3935 done
3936
3937 # these are off by default, so fail if requested and not available
3938 enabled avisynth && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
3939 { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
3940 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
3941 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3942 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3943 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3944 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3945 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
3946 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3947 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3948 done || die "ERROR: libgsm not found"; }
3949 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3950 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3951 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3952 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3953 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3954 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3955 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3956 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3957 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3958 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3959 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3960 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3961 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3962 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3963 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3964 enabled libvpx && {
3965 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3966 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3967 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3968 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3969 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3970 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3971 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
3972 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
3973 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3974 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3975 die "ERROR: libx264 version must be >= 0.118."; }
3976 enabled libx265 && require_pkg_config x265 x265.h x265_encoder_encode &&
3977 { check_cpp_condition x265.h "X265_BUILD >= 5" ||
3978 die "ERROR: libx265 version must be >= 5."; }
3979 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3980 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3981 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3982 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3983 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3984 die "ERROR: openssl not found"; }
3985
3986 if enabled gnutls; then
3987 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3988 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3989 fi
3990
3991 # libdc1394 check
3992 if enabled libdc1394; then
3993 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3994 enable libdc1394_2; } ||
3995 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3996 enable libdc1394_1; } ||
3997 die "ERROR: No version of libdc1394 found "
3998 fi
3999
4000 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4001 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4002 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4003 enable sdl
4004 fi
4005
4006 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4007 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4008
4009 check_header linux/fb.h
4010 check_header linux/videodev2.h
4011 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4012
4013 check_header sys/videoio.h
4014
4015 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4016 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4017 # w32api 3.12 had it defined wrong
4018 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4019
4020 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4021 { check_header dev/bktr/ioctl_meteor.h &&
4022 check_header dev/bktr/ioctl_bt848.h; } ||
4023 { check_header machine/ioctl_meteor.h &&
4024 check_header machine/ioctl_bt848.h; } ||
4025 { check_header dev/video/meteor/ioctl_meteor.h &&
4026 check_header dev/video/bktr/ioctl_bt848.h; } ||
4027 check_header dev/ic/bt8xx.h
4028
4029 check_header sndio.h
4030 check_header sys/soundcard.h
4031 check_header soundcard.h
4032
4033 enabled_any alsa_indev alsa_outdev &&
4034 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4035
4036 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4037 check_func jack_port_get_latency_range -ljack
4038
4039 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4040
4041 if enabled libcdio; then
4042 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4043 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4044 fi
4045
4046 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4047
4048 enabled x11grab &&
4049 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4050 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4051 { enabled xlib || die "ERROR: Xlib not found"; }
4052
4053 enabled vdpau &&
4054 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4055 disable vdpau
4056
4057 enabled vdpau && enabled xlib &&
4058 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4059 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4060 enable vdpau_x11
4061
4062 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4063
4064 # add some useful compiler flags if supported
4065 check_cflags -Wdeclaration-after-statement
4066 check_cflags -Wall
4067 check_cflags -Wdisabled-optimization
4068 check_cflags -Wpointer-arith
4069 check_cflags -Wredundant-decls
4070 check_cflags -Wcast-qual
4071 check_cflags -Wwrite-strings
4072 check_cflags -Wtype-limits
4073 check_cflags -Wundef
4074 check_cflags -Wmissing-prototypes
4075 check_cflags -Wstrict-prototypes
4076 enabled extra_warnings && check_cflags -Winline
4077
4078 check_disable_warning(){
4079 warning_flag=-W${1#-Wno-}
4080 test_cflags $warning_flag && add_cflags $1
4081 }
4082
4083 check_disable_warning -Wno-parentheses
4084 check_disable_warning -Wno-switch
4085 check_disable_warning -Wno-format-zero-length
4086 check_disable_warning -Wno-pointer-sign
4087
4088 # add some linker flags
4089 check_ldflags -Wl,--warn-common
4090 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4091 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4092
4093 # add some strip flags
4094 # -wN '..@*' is more selective than -x, but not available everywhere.
4095 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4096
4097 enabled neon_clobber_test &&
4098 check_ldflags -Wl,--wrap,avcodec_open2 \
4099 -Wl,--wrap,avcodec_decode_audio4 \
4100 -Wl,--wrap,avcodec_decode_video2 \
4101 -Wl,--wrap,avcodec_decode_subtitle2 \
4102 -Wl,--wrap,avcodec_encode_audio2 \
4103 -Wl,--wrap,avcodec_encode_video2 \
4104 -Wl,--wrap,avcodec_encode_subtitle \
4105 -Wl,--wrap,avresample_convert ||
4106 disable neon_clobber_test
4107
4108 enabled xmm_clobber_test &&
4109 check_ldflags -Wl,--wrap,avcodec_open2 \
4110 -Wl,--wrap,avcodec_decode_audio4 \
4111 -Wl,--wrap,avcodec_decode_video2 \
4112 -Wl,--wrap,avcodec_decode_subtitle2 \
4113 -Wl,--wrap,avcodec_encode_audio2 \
4114 -Wl,--wrap,avcodec_encode_video2 \
4115 -Wl,--wrap,avcodec_encode_subtitle \
4116 -Wl,--wrap,avresample_convert \
4117 -Wl,--wrap,sws_scale ||
4118 disable xmm_clobber_test
4119
4120 echo "X{};" > $TMPV
4121 if test_ldflags -Wl,--version-script,$TMPV; then
4122 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4123 check_cc <<EOF && enable symver_asm_label
4124 void ff_foo(void) __asm__ ("av_foo@VERSION");
4125 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4126 EOF
4127 check_cc <<EOF && enable symver_gnu_asm
4128 __asm__(".symver ff_foo,av_foo@VERSION");
4129 void ff_foo(void) {}
4130 EOF
4131 fi
4132
4133 if [ -z "$optflags" ]; then
4134 if enabled small; then
4135 optflags=$cflags_size
4136 elif enabled optimizations; then
4137 optflags=$cflags_speed
4138 else
4139 optflags=$cflags_noopt
4140 fi
4141 fi
4142
4143 check_optflags(){
4144 check_cflags "$@"
4145 enabled lto && check_ldflags "$@"
4146 }
4147
4148
4149 if enabled lto; then
4150 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4151 check_cflags -flto
4152 check_ldflags -flto $cpuflags
4153 fi
4154
4155 check_optflags $optflags
4156 check_optflags -fno-math-errno
4157 check_optflags -fno-signed-zeros
4158
4159 if enabled icc; then
4160 # Just warnings, no remarks
4161 check_cflags -w1
4162 # -wd: Disable following warnings
4163 # 144, 167, 556: -Wno-pointer-sign
4164 # 1292: attribute "foo" ignored
4165 # 1419: external declaration in primary source file
4166 # 10006: ignoring unknown option -fno-signed-zeros
4167 # 10148: ignoring unknown option -Wno-parentheses
4168 # 10156: ignoring option '-W'; no argument required
4169 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4170 # 11030: Warning unknown option --as-needed
4171 # 10156: ignoring option '-export'; no argument required
4172 check_ldflags -wd10156,11030
4173 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4174 enable ebp_available
4175 if enabled x86_32; then
4176 icc_version=$($cc -dumpversion)
4177 test ${icc_version%%.*} -ge 11 &&
4178 check_cflags -falign-stack=maintain-16-byte ||
4179 disable aligned_stack
4180 fi
4181 elif enabled ccc; then
4182 # disable some annoying warnings
4183 add_cflags -msg_disable bitnotint
4184 add_cflags -msg_disable mixfuncvoid
4185 add_cflags -msg_disable nonstandcast
4186 add_cflags -msg_disable unsupieee
4187 elif enabled gcc; then
4188 check_optflags -fno-tree-vectorize
4189 check_cflags -Werror=implicit-function-declaration
4190 check_cflags -Werror=missing-prototypes
4191 check_cflags -Werror=return-type
4192 check_cflags -Werror=declaration-after-statement
4193 check_cflags -Werror=vla
4194 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4195 elif enabled llvm_gcc; then
4196 check_cflags -mllvm -stack-alignment=16
4197 elif enabled clang; then
4198 check_cflags -mllvm -stack-alignment=16
4199 check_cflags -Qunused-arguments
4200 check_cflags -Werror=implicit-function-declaration
4201 check_cflags -Werror=missing-prototypes
4202 check_cflags -Werror=return-type
4203 elif enabled cparser; then
4204 add_cflags -Wno-missing-variable-declarations
4205 add_cflags -Wno-empty-statement
4206 elif enabled armcc; then
4207 # 2523: use of inline assembler is deprecated
4208 add_cflags -W${armcc_opt},--diag_suppress=2523
4209 add_cflags -W${armcc_opt},--diag_suppress=1207
4210 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4211 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4212 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4213 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4214 elif enabled tms470; then
4215 add_cflags -pds=824 -pds=837
4216 disable inline_asm
4217 elif enabled pathscale; then
4218 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4219 elif enabled_any msvc icl; then
4220 enabled x86_32 && disable aligned_stack
4221 enabled_all x86_32 debug && add_cflags -Oy-
4222 enabled debug && add_ldflags -debug
4223 enable pragma_deprecated
4224 if enabled icl; then
4225 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4226 # (correctly) on icl 13.x.
4227 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4228 add_cflags -Qansi-alias
4229 # icl will pass the inline asm tests but inline asm is currently
4230 # not supported (build will fail)
4231 disable inline_asm
4232 fi
4233 fi
4234
4235 case $as_type in
4236 clang)
4237 add_asflags -Qunused-arguments
4238 ;;
4239 esac
4240
4241 case $ld_type in
4242 clang)
4243 check_ldflags -Qunused-arguments
4244 ;;
4245 esac
4246
4247 case $target_os in
4248 osf1)
4249 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4250 ;;
4251 plan9)
4252 add_cppflags -Dmain=plan9_main
4253 ;;
4254 esac
4255
4256 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4257
4258 check_deps $CONFIG_LIST \
4259 $CONFIG_EXTRA \
4260 $HAVE_LIST \
4261 $ALL_COMPONENTS \
4262
4263 ! enabled_any memalign posix_memalign aligned_malloc &&
4264 enabled_any $need_memalign && enable memalign_hack
4265
4266 echo "install prefix $prefix"
4267 echo "source path $source_path"
4268 echo "C compiler $cc"
4269 echo "C library $libc_type"
4270 if test "$host_cc" != "$cc"; then
4271 echo "host C compiler $host_cc"
4272 echo "host C library $host_libc_type"
4273 fi
4274 echo "ARCH $arch ($cpu)"
4275 if test "$build_suffix" != ""; then
4276 echo "build suffix $build_suffix"
4277 fi
4278 if test "$extra_version" != ""; then
4279 echo "version string suffix $extra_version"
4280 fi
4281 echo "big-endian ${bigendian-no}"
4282 echo "runtime cpu detection ${runtime_cpudetect-no}"
4283 if enabled x86; then
4284 echo "${yasmexe} ${yasm-no}"
4285 echo "MMX enabled ${mmx-no}"
4286 echo "MMXEXT enabled ${mmxext-no}"
4287 echo "3DNow! enabled ${amd3dnow-no}"
4288 echo "3DNow! extended enabled ${amd3dnowext-no}"
4289 echo "SSE enabled ${sse-no}"
4290 echo "SSSE3 enabled ${ssse3-no}"
4291 echo "AVX enabled ${avx-no}"
4292 echo "FMA4 enabled ${fma4-no}"
4293 echo "i686 features enabled ${i686-no}"
4294 echo "CMOV is fast ${fast_cmov-no}"
4295 echo "EBX available ${ebx_available-no}"
4296 echo "EBP available ${ebp_available-no}"
4297 fi
4298 if enabled aarch64; then
4299 echo "NEON enabled ${neon-no}"
4300 echo "VFP enabled ${vfp-no}"
4301 fi
4302 if enabled arm; then
4303 echo "ARMv5TE enabled ${armv5te-no}"
4304 echo "ARMv6 enabled ${armv6-no}"
4305 echo "ARMv6T2 enabled ${armv6t2-no}"
4306 echo "VFP enabled ${vfp-no}"
4307 echo "NEON enabled ${neon-no}"
4308 fi
4309 if enabled ppc; then
4310 echo "AltiVec enabled ${altivec-no}"
4311 echo "PPC 4xx optimizations ${ppc4xx-no}"
4312 echo "dcbzl available ${dcbzl-no}"
4313 fi
4314 if enabled sparc; then
4315 echo "VIS enabled ${vis-no}"
4316 fi
4317 echo "debug symbols ${debug-no}"
4318 echo "optimize for size ${small-no}"
4319 echo "optimizations ${optimizations-no}"
4320 echo "static ${static-no}"
4321 echo "shared ${shared-no}"
4322 echo "new filter support ${avfilter-no}"
4323 echo "network support ${network-no}"
4324 echo "threading support ${thread_type-no}"
4325 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4326 echo "SDL support ${sdl-no}"
4327 test -n "$random_seed" &&
4328 echo "random seed ${random_seed}"
4329 echo
4330
4331 echo "External libraries:"
4332 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4333 echo
4334
4335 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4336 echo "Enabled ${type}s:"
4337 eval list=\$$(toupper $type)_LIST
4338 print_enabled '_*' $list | print_3_columns
4339 echo
4340 done
4341
4342 license="LGPL version 2.1 or later"
4343 if enabled nonfree; then
4344 license="nonfree and unredistributable"
4345 elif enabled gplv3; then
4346 license="GPL version 3 or later"
4347 elif enabled lgplv3; then
4348 license="LGPL version 3 or later"
4349 elif enabled gpl; then
4350 license=