build: Let AMV decoder depend on the SP5X decoder
[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-xop disable XOP optimizations
274 --disable-fma3 disable FMA3 optimizations
275 --disable-fma4 disable FMA4 optimizations
276 --disable-avx2 disable AVX2 optimizations
277 --disable-armv5te disable armv5te optimizations
278 --disable-armv6 disable armv6 optimizations
279 --disable-armv6t2 disable armv6t2 optimizations
280 --disable-vfp disable VFP optimizations
281 --disable-neon disable NEON optimizations
282 --disable-vis disable VIS optimizations
283 --disable-inline-asm disable use of inline assembler
284 --disable-yasm disable use of yasm assembler
285
286 Developer options (useful when working on Libav itself):
287 --disable-debug disable debugging symbols
288 --enable-debug=LEVEL set the debug level [$debuglevel]
289 --disable-optimizations disable compiler optimizations
290 --enable-extra-warnings enable more compiler warnings
291 --samples=PATH location of test samples for FATE, if not set use
292 \$LIBAV_SAMPLES at make invocation time.
293 --enable-neon-clobber-test check NEON registers for clobbering (should be
294 used only for debugging purposes)
295 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
296 should be used only for debugging purposes)
297 --enable-random randomly enable/disable components
298 --disable-random
299 --enable-random=LIST randomly enable/disable specific components or
300 --disable-random=LIST component groups. LIST is a comma-separated list
301 of NAME[:PROB] entries where NAME is a component
302 (group) and PROB the probability associated with
303 NAME (default 0.5).
304 --random-seed=VALUE seed value for --enable/disable-random
305
306 NOTE: Object files are built at the place where configure is launched.
307 EOF
308 exit 0
309 }
310
311 quotes='""'
312
313 log(){
314 echo "$@" >> $logfile
315 }
316
317 log_file(){
318 log BEGIN $1
319 pr -n -t $1 >> $logfile
320 log END $1
321 }
322
323 echolog(){
324 log "$@"
325 echo "$@"
326 }
327
328 warn(){
329 log "WARNING: $*"
330 WARNINGS="${WARNINGS}WARNING: $*\n"
331 }
332
333 die(){
334 echolog "$@"
335 cat <<EOF
336
337 If you think configure made a mistake, make sure you are using the latest
338 version from Git. If the latest version fails, report the problem to the
339 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
340 EOF
341 if disabled logging; then
342 cat <<EOF
343 Rerun configure with logging enabled (do not use --disable-logging), and
344 include the log this produces with your report.
345 EOF
346 else
347 cat <<EOF
348 Include the log file "$logfile" produced by configure as this will help
349 solving the problem.
350 EOF
351 fi
352 exit 1
353 }
354
355 # Avoid locale weirdness, besides we really just want to translate ASCII.
356 toupper(){
357 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
358 }
359
360 tolower(){
361 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
362 }
363
364 c_escape(){
365 echo "$*" | sed 's/["\\]/\\\0/g'
366 }
367
368 sh_quote(){
369 v=$(echo "$1" | sed "s/'/'\\\\''/g")
370 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
371 echo "$v"
372 }
373
374 cleanws(){
375 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
376 }
377
378 filter(){
379 pat=$1
380 shift
381 for v; do
382 eval "case $v in $pat) echo $v ;; esac"
383 done
384 }
385
386 filter_out(){
387 pat=$1
388 shift
389 for v; do
390 eval "case $v in $pat) ;; *) echo $v ;; esac"
391 done
392 }
393
394 map(){
395 m=$1
396 shift
397 for v; do eval $m; done
398 }
399
400 add_suffix(){
401 suffix=$1
402 shift
403 for v; do echo ${v}${suffix}; done
404 }
405
406 set_all(){
407 value=$1
408 shift
409 for var in $*; do
410 eval $var=$value
411 done
412 }
413
414 set_weak(){
415 value=$1
416 shift
417 for var; do
418 eval : \${$var:=$value}
419 done
420 }
421
422 sanitize_var_name(){
423 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
424 }
425
426 set_safe(){
427 var=$1
428 shift
429 eval $(sanitize_var_name "$var")='$*'
430 }
431
432 get_safe(){
433 eval echo \$$(sanitize_var_name "$1")
434 }
435
436 pushvar(){
437 for pvar in $*; do
438 eval level=\${${pvar}_level:=0}
439 eval ${pvar}_${level}="\$$pvar"
440 eval ${pvar}_level=$(($level+1))
441 done
442 }
443
444 popvar(){
445 for pvar in $*; do
446 eval level=\${${pvar}_level:-0}
447 test $level = 0 && continue
448 eval level=$(($level-1))
449 eval $pvar="\${${pvar}_${level}}"
450 eval ${pvar}_level=$level
451 eval unset ${pvar}_${level}
452 done
453 }
454
455 enable(){
456 set_all yes $*
457 }
458
459 disable(){
460 set_all no $*
461 }
462
463 enable_weak(){
464 set_weak yes $*
465 }
466
467 disable_weak(){
468 set_weak no $*
469 }
470
471 enable_safe(){
472 for var; do
473 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474 done
475 }
476
477 disable_safe(){
478 for var; do
479 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
480 done
481 }
482
483 do_enable_deep(){
484 for var; do
485 enabled $var && continue
486 eval sel="\$${var}_select"
487 eval sgs="\$${var}_suggest"
488 pushvar var sgs
489 enable_deep $sel
490 popvar sgs
491 enable_deep_weak $sgs
492 popvar var
493 done
494 }
495
496 enable_deep(){
497 do_enable_deep $*
498 enable $*
499 }
500
501 enable_deep_weak(){
502 for var; do
503 disabled $var && continue
504 pushvar var
505 do_enable_deep $var
506 popvar var
507 enable_weak $var
508 done
509 }
510
511 enabled(){
512 test "${1#!}" = "$1" && op== || op=!=
513 eval test "x\$${1#!}" $op "xyes"
514 }
515
516 disabled(){
517 test "${1#!}" = "$1" && op== || op=!=
518 eval test "x\$${1#!}" $op "xno"
519 }
520
521 enabled_all(){
522 for opt; do
523 enabled $opt || return 1
524 done
525 }
526
527 disabled_all(){
528 for opt; do
529 disabled $opt || return 1
530 done
531 }
532
533 enabled_any(){
534 for opt; do
535 enabled $opt && return 0
536 done
537 }
538
539 disabled_any(){
540 for opt; do
541 disabled $opt && return 0
542 done
543 return 1
544 }
545
546 set_default(){
547 for opt; do
548 eval : \${$opt:=\$${opt}_default}
549 done
550 }
551
552 is_in(){
553 value=$1
554 shift
555 for var in $*; do
556 [ $var = $value ] && return 0
557 done
558 return 1
559 }
560
561 do_check_deps(){
562 for cfg; do
563 cfg="${cfg#!}"
564 enabled ${cfg}_checking && die "Circular dependency for $cfg."
565 disabled ${cfg}_checking && continue
566 enable ${cfg}_checking
567 append allopts $cfg
568
569 eval dep_all="\$${cfg}_deps"
570 eval dep_any="\$${cfg}_deps_any"
571 eval dep_sel="\$${cfg}_select"
572 eval dep_sgs="\$${cfg}_suggest"
573 eval dep_ifa="\$${cfg}_if"
574 eval dep_ifn="\$${cfg}_if_any"
575
576 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
577 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
578 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
579
580 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
581 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
582 enabled_all $dep_all || disable $cfg
583 enabled_any $dep_any || disable $cfg
584 disabled_any $dep_sel && disable $cfg
585
586 if enabled $cfg; then
587 enable_deep $dep_sel
588 enable_deep_weak $dep_sgs
589 fi
590
591 disable ${cfg}_checking
592 done
593 }
594
595 check_deps(){
596 unset allopts
597
598 do_check_deps "$@"
599
600 for cfg in $allopts; do
601 enabled $cfg || continue
602 eval dep_extralibs="\$${cfg}_extralibs"
603 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
604 done
605 }
606
607 print_config(){
608 pfx=$1
609 files=$2
610 shift 2
611 map 'eval echo "$v \${$v:-no}"' "$@" |
612 awk "BEGIN { split(\"$files\", files) }
613 {
614 c = \"$pfx\" toupper(\$1);
615 v = \$2;
616 sub(/yes/, 1, v);
617 sub(/no/, 0, v);
618 for (f in files) {
619 file = files[f];
620 if (file ~ /\\.h\$/) {
621 printf(\"#define %s %d\\n\", c, v) >>file;
622 } else if (file ~ /\\.asm\$/) {
623 printf(\"%%define %s %d\\n\", c, v) >>file;
624 } else if (file ~ /\\.mak\$/) {
625 n = -v ? \"\" : \"!\";
626 printf(\"%s%s=yes\\n\", n, c) >>file;
627 }
628 }
629 }"
630 }
631
632 print_enabled(){
633 suf=$1
634 shift
635 for v; do
636 enabled $v && printf "%s\n" ${v%$suf};
637 done
638 }
639
640 append(){
641 var=$1
642 shift
643 eval "$var=\"\$$var $*\""
644 }
645
646 prepend(){
647 var=$1
648 shift
649 eval "$var=\"$* \$$var\""
650 }
651
652 add_cppflags(){
653 append CPPFLAGS "$@"
654 }
655
656 add_cflags(){
657 append CFLAGS $($cflags_filter "$@")
658 }
659
660 add_asflags(){
661 append ASFLAGS $($asflags_filter "$@")
662 }
663
664 add_ldflags(){
665 append LDFLAGS $($ldflags_filter "$@")
666 }
667
668 add_stripflags(){
669 append STRIPFLAGS "$@"
670 }
671
672 add_extralibs(){
673 prepend extralibs $($ldflags_filter "$@")
674 }
675
676 add_host_cppflags(){
677 append host_cppflags "$@"
678 }
679
680 add_host_cflags(){
681 append host_cflags $($host_cflags_filter "$@")
682 }
683
684 add_host_ldflags(){
685 append host_ldflags $($host_ldflags_filter "$@")
686 }
687
688 add_compat(){
689 append compat_objs $1
690 shift
691 map 'add_cppflags -D$v' "$@"
692 }
693
694 check_cmd(){
695 log "$@"
696 "$@" >> $logfile 2>&1
697 }
698
699 cc_o(){
700 eval printf '%s\\n' $CC_O
701 }
702
703 cc_e(){
704 eval printf '%s\\n' $CC_E
705 }
706
707 check_cc(){
708 log check_cc "$@"
709 cat > $TMPC
710 log_file $TMPC
711 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
712 }
713
714 check_cpp(){
715 log check_cpp "$@"
716 cat > $TMPC
717 log_file $TMPC
718 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
719 }
720
721 as_o(){
722 eval printf '%s\\n' $AS_O
723 }
724
725 check_as(){
726 log check_as "$@"
727 cat > $TMPS
728 log_file $TMPS
729 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
730 }
731
732 check_inline_asm(){
733 log check_inline_asm "$@"
734 name="$1"
735 code="$2"
736 shift 2
737 disable $name
738 check_cc "$@" <<EOF && enable $name
739 void foo(void){ __asm__ volatile($code); }
740 EOF
741 }
742
743 check_insn(){
744 log check_insn "$@"
745 check_inline_asm ${1}_inline "\"$2\""
746 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
747 }
748
749 check_yasm(){
750 log check_yasm "$@"
751 echo "$1" > $TMPS
752 log_file $TMPS
753 shift 1
754 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
755 }
756
757 ld_o(){
758 eval printf '%s\\n' $LD_O
759 }
760
761 check_ld(){
762 log check_ld "$@"
763 flags=$(filter_out '-l*' "$@")
764 libs=$(filter '-l*' "$@")
765 check_cc $($cflags_filter $flags) || return
766 flags=$($ldflags_filter $flags)
767 libs=$($ldflags_filter $libs)
768 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
769 }
770
771 print_include(){
772 hdr=$1
773 test "${hdr%.h}" = "${hdr}" &&
774 echo "#include $hdr" ||
775 echo "#include <$hdr>"
776 }
777
778 check_code(){
779 log check_code "$@"
780 check=$1
781 headers=$2
782 code=$3
783 shift 3
784 {
785 for hdr in $headers; do
786 print_include $hdr
787 done
788 echo "int main(void) { $code; return 0; }"
789 } | check_$check "$@"
790 }
791
792 check_cppflags(){
793 log check_cppflags "$@"
794 check_cc "$@" <<EOF && append CPPFLAGS "$@"
795 int x;
796 EOF
797 }
798
799 test_cflags(){
800 log test_cflags "$@"
801 set -- $($cflags_filter "$@")
802 check_cc "$@" <<EOF
803 int x;
804 EOF
805 }
806
807 check_cflags(){
808 log check_cflags "$@"
809 test_cflags "$@" && add_cflags "$@"
810 }
811
812 test_ldflags(){
813 log test_ldflags "$@"
814 check_ld "$@" <<EOF
815 int main(void){ return 0; }
816 EOF
817 }
818
819 check_ldflags(){
820 log check_ldflags "$@"
821 test_ldflags "$@" && add_ldflags "$@"
822 }
823
824 test_stripflags(){
825 log test_stripflags "$@"
826 # call check_cc to get a fresh TMPO
827 check_cc <<EOF
828 int main(void) { return 0; }
829 EOF
830 check_cmd $strip $STRIPFLAGS "$@" $TMPO
831 }
832
833 check_stripflags(){
834 log check_stripflags "$@"
835 test_stripflags "$@" && add_stripflags "$@"
836 }
837
838 check_header(){
839 log check_header "$@"
840 header=$1
841 shift
842 disable_safe $header
843 check_cpp "$@" <<EOF && enable_safe $header
844 #include <$header>
845 int x;
846 EOF
847 }
848
849 check_func(){
850 log check_func "$@"
851 func=$1
852 shift
853 disable $func
854 check_ld "$@" <<EOF && enable $func
855 extern int $func();
856 int main(void){ $func(); }
857 EOF
858 }
859
860 check_mathfunc(){
861 log check_mathfunc "$@"
862 func=$1
863 narg=$2
864 shift 2
865 test $narg = 2 && args="f, g" || args="f"
866 disable $func
867 check_ld "$@" <<EOF && enable $func
868 #include <math.h>
869 float foo(float f, float g) { return $func($args); }
870 int main(void){ return 0; }
871 EOF
872 }
873
874 check_func_headers(){
875 log check_func_headers "$@"
876 headers=$1
877 funcs=$2
878 shift 2
879 {
880 for hdr in $headers; do
881 print_include $hdr
882 done
883 for func in $funcs; do
884 echo "long check_$func(void) { return (long) $func; }"
885 done
886 echo "int main(void) { return 0; }"
887 } | check_ld "$@" && enable $funcs && enable_safe $headers
888 }
889
890 check_cpp_condition(){
891 log check_cpp_condition "$@"
892 header=$1
893 condition=$2
894 shift 2
895 check_cpp "$@" <<EOF
896 #include <$header>
897 #if !($condition)
898 #error "unsatisfied condition: $condition"
899 #endif
900 EOF
901 }
902
903 check_lib(){
904 log check_lib "$@"
905 header="$1"
906 func="$2"
907 shift 2
908 check_header $header && check_func $func "$@" && add_extralibs "$@"
909 }
910
911 check_lib2(){
912 log check_lib2 "$@"
913 headers="$1"
914 funcs="$2"
915 shift 2
916 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
917 }
918
919 check_pkg_config(){
920 log check_pkg_config "$@"
921 pkg="$1"
922 headers="$2"
923 funcs="$3"
924 shift 3
925 check_cmd $pkg_config --exists --print-errors $pkg || return
926 pkg_cflags=$($pkg_config --cflags $pkg)
927 pkg_libs=$($pkg_config --libs $pkg)
928 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
929 set_safe ${pkg}_cflags $pkg_cflags &&
930 set_safe ${pkg}_libs $pkg_libs
931 }
932
933 check_exec(){
934 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
935 }
936
937 check_exec_crash(){
938 code=$(cat)
939
940 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
941 # are safe but may not be available everywhere. Thus we use
942 # raise(SIGTERM) instead. The check is run in a subshell so we
943 # can redirect the "Terminated" message from the shell. SIGBUS
944 # is not defined by standard C so it is used conditionally.
945
946 (check_exec "$@") >> $logfile 2>&1 <<EOF
947 #include <signal.h>
948 static void sighandler(int sig){
949 raise(SIGTERM);
950 }
951 int foo(void){
952 $code
953 }
954 int (*func_ptr)(void) = foo;
955 int main(void){
956 signal(SIGILL, sighandler);
957 signal(SIGFPE, sighandler);
958 signal(SIGSEGV, sighandler);
959 #ifdef SIGBUS
960 signal(SIGBUS, sighandler);
961 #endif
962 return func_ptr();
963 }
964 EOF
965 }
966
967 check_type(){
968 log check_type "$@"
969 headers=$1
970 type=$2
971 shift 2
972 disable_safe "$type"
973 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
974 }
975
976 check_struct(){
977 log check_struct "$@"
978 headers=$1
979 struct=$2
980 member=$3
981 shift 3
982 disable_safe "${struct}_${member}"
983 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
984 enable_safe "${struct}_${member}"
985 }
986
987 check_builtin(){
988 log check_builtin "$@"
989 name=$1
990 headers=$2
991 builtin=$3
992 shift 3
993 disable "$name"
994 check_code ld "$headers" "$builtin" "$@" && enable "$name"
995 }
996
997 require(){
998 name="$1"
999 header="$2"
1000 func="$3"
1001 shift 3
1002 check_lib $header $func "$@" || die "ERROR: $name not found"
1003 }
1004
1005 require2(){
1006 name="$1"
1007 headers="$2"
1008 func="$3"
1009 shift 3
1010 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1011 }
1012
1013 require_pkg_config(){
1014 pkg="$1"
1015 check_pkg_config "$@" || die "ERROR: $pkg not found"
1016 add_cflags $(get_safe ${pkg}_cflags)
1017 add_extralibs $(get_safe ${pkg}_libs)
1018 }
1019
1020 hostcc_e(){
1021 eval printf '%s\\n' $HOSTCC_E
1022 }
1023
1024 hostcc_o(){
1025 eval printf '%s\\n' $HOSTCC_O
1026 }
1027
1028 check_host_cc(){
1029 log check_host_cc "$@"
1030 cat > $TMPC
1031 log_file $TMPC
1032 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1033 }
1034
1035 check_host_cpp(){
1036 log check_host_cpp "$@"
1037 cat > $TMPC
1038 log_file $TMPC
1039 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1040 }
1041
1042 check_host_cppflags(){
1043 log check_host_cppflags "$@"
1044 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1045 int x;
1046 EOF
1047 }
1048
1049 check_host_cflags(){
1050 log check_host_cflags "$@"
1051 set -- $($host_cflags_filter "$@")
1052 check_host_cc "$@" <<EOF && append host_cflags "$@"
1053 int x;
1054 EOF
1055 }
1056
1057 check_host_cpp_condition(){
1058 log check_host_cpp_condition "$@"
1059 header=$1
1060 condition=$2
1061 shift 2
1062 check_host_cpp "$@" <<EOF
1063 #include <$header>
1064 #if !($condition)
1065 #error "unsatisfied condition: $condition"
1066 #endif
1067 EOF
1068 }
1069
1070 apply(){
1071 file=$1
1072 shift
1073 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1074 }
1075
1076 cp_if_changed(){
1077 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1078 mkdir -p "$(dirname $2)"
1079 $cp_f "$1" "$2"
1080 }
1081
1082 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1083 # system-dependent things.
1084
1085 COMPONENT_LIST="
1086 bsfs
1087 decoders
1088 demuxers
1089 encoders
1090 filters
1091 hwaccels
1092 indevs
1093 muxers
1094 outdevs
1095 parsers
1096 protocols
1097 "
1098
1099 EXAMPLE_LIST="
1100 avcodec_example
1101 filter_audio_example
1102 metadata_example
1103 output_example
1104 transcode_aac_example
1105 "
1106
1107 EXTERNAL_LIBRARY_LIST="
1108 avisynth
1109 bzlib
1110 frei0r
1111 gnutls
1112 libcdio
1113 libdc1394
1114 libfaac
1115 libfdk_aac
1116 libfreetype
1117 libgsm
1118 libilbc
1119 libmp3lame
1120 libopencore_amrnb
1121 libopencore_amrwb
1122 libopencv
1123 libopenjpeg
1124 libopus
1125 libpulse
1126 librtmp
1127 libschroedinger
1128 libspeex
1129 libtheora
1130 libvo_aacenc
1131 libvo_amrwbenc
1132 libvorbis
1133 libvpx
1134 libwavpack
1135 libwebp
1136 libx264
1137 libx265
1138 libxavs
1139 libxvid
1140 openssl
1141 x11grab
1142 zlib
1143 "
1144
1145 HWACCEL_LIST="
1146 dxva2
1147 vaapi
1148 vda
1149 vdpau
1150 "
1151 LIBRARY_LIST="
1152 avcodec
1153 avdevice
1154 avfilter
1155 avformat
1156 avresample
1157 avutil
1158 swscale
1159 "
1160
1161 PROGRAM_LIST="
1162 avconv
1163 avplay
1164 avprobe
1165 avserver
1166 "
1167
1168 CONFIG_LIST="
1169 $COMPONENT_LIST
1170 $EXAMPLE_LIST
1171 $EXTERNAL_LIBRARY_LIST
1172 $HWACCEL_LIST
1173 $LIBRARY_LIST
1174 $PROGRAM_LIST
1175 dct
1176 doc
1177 error_resilience
1178 fft
1179 gpl
1180 gray
1181 hardcoded_tables
1182 lsp
1183 lzo
1184 mdct
1185 memalign_hack
1186 neon_clobber_test
1187 network
1188 nonfree
1189 pod2man
1190 pic
1191 rdft
1192 runtime_cpudetect
1193 safe_bitstream_reader
1194 shared
1195 small
1196 sram
1197 static
1198 swscale_alpha
1199 texi2html
1200 thumb
1201 version3
1202 xmm_clobber_test
1203 "
1204
1205 THREADS_LIST='
1206 pthreads
1207 w32threads
1208 '
1209
1210 ATOMICS_LIST='
1211 atomics_gcc
1212 atomics_suncc
1213 atomics_win32
1214 '
1215
1216 ARCH_LIST='
1217 aarch64
1218 alpha
1219 arm
1220 avr32
1221 avr32_ap
1222 avr32_uc
1223 bfin
1224 ia64
1225 m68k
1226 mips
1227 mips64
1228 parisc
1229 ppc
1230 ppc64
1231 s390
1232 sh4
1233 sparc
1234 sparc64
1235 tilegx
1236 tilepro
1237 tomi
1238 x86
1239 x86_32
1240 x86_64
1241 '
1242
1243 ARCH_EXT_LIST_ARM='
1244 armv5te
1245 armv6
1246 armv6t2
1247 neon
1248 vfp
1249 vfpv3
1250 '
1251
1252 ARCH_EXT_LIST_X86='
1253 amd3dnow
1254 amd3dnowext
1255 avx
1256 avx2
1257 cpunop
1258 xop
1259 fma3
1260 fma4
1261 i686
1262 mmx
1263 mmxext
1264 sse
1265 sse2
1266 sse3
1267 sse4
1268 sse42
1269 ssse3
1270 '
1271
1272 ARCH_EXT_LIST="
1273 $ARCH_EXT_LIST_ARM
1274 $ARCH_EXT_LIST_X86
1275 altivec
1276 ppc4xx
1277 vis
1278 "
1279
1280 HAVE_LIST_CMDLINE='
1281 inline_asm
1282 symver
1283 yasm
1284 '
1285
1286 HAVE_LIST_PUB='
1287 bigendian
1288 fast_unaligned
1289 '
1290
1291 MATH_FUNCS="
1292 atanf
1293 atan2f
1294 cbrtf
1295 cosf
1296 exp2
1297 exp2f
1298 expf
1299 isinf
1300 isnan
1301 ldexpf
1302 llrint
1303 llrintf
1304 log2
1305 log2f
1306 log10f
1307 lrint
1308 lrintf
1309 powf
1310 rint
1311 round
1312 roundf
1313 sinf
1314 trunc
1315 truncf
1316 "
1317
1318 HAVE_LIST="
1319 $ARCH_EXT_LIST
1320 $(add_suffix _external $ARCH_EXT_LIST)
1321 $(add_suffix _inline $ARCH_EXT_LIST)
1322 $HAVE_LIST_CMDLINE
1323 $HAVE_LIST_PUB
1324 $THREADS_LIST
1325 $ATOMICS_LIST
1326 $MATH_FUNCS
1327 aligned_malloc
1328 aligned_stack
1329 alsa_asoundlib_h
1330 altivec_h
1331 arpa_inet_h
1332 asm_mod_q
1333 atomic_cas_ptr
1334 atomics_native
1335 attribute_may_alias
1336 attribute_packed
1337 cdio_paranoia_h
1338 cdio_paranoia_paranoia_h
1339 closesocket
1340 CommandLineToArgvW
1341 CryptGenRandom
1342 dcbzl
1343 dev_bktr_ioctl_bt848_h
1344 dev_bktr_ioctl_meteor_h
1345 dev_ic_bt8xx_h
1346 dev_video_bktr_ioctl_bt848_h
1347 dev_video_meteor_ioctl_meteor_h
1348 direct_h
1349 dlfcn_h
1350 dlopen
1351 dos_paths
1352 dxva_h
1353 ebp_available
1354 ebx_available
1355 fast_64bit
1356 fast_clz
1357 fast_cmov
1358 fcntl
1359 fork
1360 getaddrinfo
1361 gethrtime
1362 getopt
1363 GetProcessAffinityMask
1364 GetProcessMemoryInfo
1365 GetProcessTimes
1366 GetSystemTimeAsFileTime
1367 getrusage
1368 getservbyport
1369 gettimeofday
1370 gnu_as
1371 gsm_h
1372 ibm_asm
1373 inet_aton
1374 io_h
1375 inline_asm_labels
1376 isatty
1377 jack_port_get_latency_range
1378 ldbrx
1379 libc_msvcrt
1380 libdc1394_1
1381 libdc1394_2
1382 local_aligned_16
1383 local_aligned_8
1384 localtime_r
1385 loongson
1386 machine_ioctl_bt848_h
1387 machine_ioctl_meteor_h
1388 machine_rw_barrier
1389 malloc_h
1390 MapViewOfFile
1391 memalign
1392 MemoryBarrier
1393 mkstemp
1394 mm_empty
1395 mmap
1396 mprotect
1397 nanosleep
1398 poll_h
1399 posix_memalign
1400 pragma_deprecated
1401 rdtsc
1402 sched_getaffinity
1403 sdl
1404 SetConsoleTextAttribute
1405 setmode
1406 setrlimit
1407 Sleep
1408 sndio_h
1409 socklen_t
1410 soundcard_h
1411 strerror_r
1412 strptime
1413 strtok_r
1414 struct_addrinfo
1415 struct_group_source_req
1416 struct_ip_mreq_source
1417 struct_ipv6_mreq
1418 struct_pollfd
1419 struct_rusage_ru_maxrss
1420 struct_sockaddr_in6
1421 struct_sockaddr_sa_len
1422 struct_sockaddr_storage
1423 struct_v4l2_frmivalenum_discrete
1424 symver_asm_label
1425 symver_gnu_asm
1426 sync_val_compare_and_swap
1427 sysconf
1428 sysctl
1429 sys_mman_h
1430 sys_param_h
1431 sys_resource_h
1432 sys_select_h
1433 sys_soundcard_h
1434 sys_time_h
1435 sys_un_h
1436 sys_videoio_h
1437 threads
1438 unistd_h
1439 usleep
1440 vdpau_x11
1441 vfp_args
1442 VirtualAlloc
1443 windows_h
1444 winsock2_h
1445 xform_asm
1446 xlib
1447 xmm_clobbers
1448 "
1449
1450 # options emitted with CONFIG_ prefix but not available on the command line
1451 CONFIG_EXTRA="
1452 aandcttables
1453 ac3dsp
1454 audio_frame_queue
1455 dsputil
1456 gcrypt
1457 golomb
1458 gplv3
1459 h263dsp
1460 h264chroma
1461 h264dsp
1462 h264pred
1463 h264qpel
1464 hpeldsp
1465 huffman
1466 intrax8
1467 lgplv3
1468 lpc
1469 mpegaudio
1470 mpegaudiodsp
1471 mpegvideo
1472 mpegvideoenc
1473 nettle
1474 rangecoder
1475 riffdec
1476 riffenc
1477 rtpdec
1478 rtpenc_chain
1479 sinewin
1480 videodsp
1481 vp3dsp
1482 "
1483
1484 CMDLINE_SELECT="
1485 $ARCH_EXT_LIST
1486 $CONFIG_LIST
1487 $HAVE_LIST_CMDLINE
1488 $THREADS_LIST
1489 asm
1490 cross_compile
1491 debug
1492 extra_warnings
1493 logging
1494 lto
1495 optimizations
1496 "
1497
1498 PATHS_LIST='
1499 bindir
1500 datadir
1501 docdir
1502 incdir
1503 libdir
1504 mandir
1505 prefix
1506 shlibdir
1507 '
1508
1509 CMDLINE_SET="
1510 $PATHS_LIST
1511 ar
1512 arch
1513 as
1514 build_suffix
1515 cc
1516 cpu
1517 cross_prefix
1518 dep_cc
1519 extra_version
1520 host_cc
1521 host_cflags
1522 host_ld
1523 host_ldflags
1524 host_libs
1525 host_os
1526 ld
1527 logfile
1528 malloc_prefix
1529 nm
1530 optflags
1531 pkg_config
1532 random_seed
1533 samples
1534 sysinclude
1535 sysroot
1536 target_exec
1537 target_os
1538 target_path
1539 target_samples
1540 toolchain
1541 "
1542
1543 CMDLINE_APPEND="
1544 extra_cflags
1545 host_cppflags
1546 "
1547
1548 # code dependency declarations
1549
1550 # architecture extensions
1551
1552 armv5te_deps="arm"
1553 armv6_deps="arm"
1554 armv6t2_deps="arm"
1555 neon_deps_any="aarch64 arm"
1556 vfp_deps_any="aarch64 arm"
1557 vfpv3_deps="vfp"
1558
1559 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1560
1561 altivec_deps="ppc"
1562 ppc4xx_deps="ppc"
1563
1564 vis_deps="sparc"
1565
1566 cpunop_deps="i686"
1567 x86_64_select="i686"
1568 x86_64_suggest="fast_cmov"
1569
1570 amd3dnow_deps="mmx"
1571 amd3dnowext_deps="amd3dnow"
1572 i686_deps="x86"
1573 mmx_deps="x86"
1574 mmxext_deps="mmx"
1575 sse_deps="mmxext"
1576 sse2_deps="sse"
1577 sse3_deps="sse2"
1578 ssse3_deps="sse3"
1579 sse4_deps="ssse3"
1580 sse42_deps="sse4"
1581 avx_deps="sse42"
1582 xop_deps="avx"
1583 fma3_deps="avx"
1584 fma4_deps="avx"
1585 avx2_deps="avx"
1586
1587 mmx_external_deps="yasm"
1588 mmx_inline_deps="inline_asm"
1589 mmx_suggest="mmx_external mmx_inline"
1590
1591 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1592 eval dep=\$${ext}_deps
1593 eval ${ext}_external_deps='"${dep}_external"'
1594 eval ${ext}_inline_deps='"${dep}_inline"'
1595 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1596 done
1597
1598 aligned_stack_if_any="aarch64 ppc x86"
1599 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1600 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1601 fast_unaligned_if_any="aarch64 ppc x86"
1602
1603 need_memalign="altivec neon sse"
1604
1605 # system capabilities
1606 log2_deps="!libc_msvcrt"
1607
1608 symver_if_any="symver_asm_label symver_gnu_asm"
1609
1610 # threading support
1611 atomics_gcc_if="sync_val_compare_and_swap"
1612 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1613 atomics_win32_if="MemoryBarrier"
1614 atomics_native_if_any="$ATOMICS_LIST"
1615 w32threads_deps="atomics_native"
1616 threads_if_any="$THREADS_LIST"
1617
1618 # subsystems
1619 dct_select="rdft"
1620 error_resilience_select="dsputil"
1621 lpc_select="dsputil"
1622 mdct_select="fft"
1623 rdft_select="fft"
1624 mpegaudio_select="mpegaudiodsp"
1625 mpegaudiodsp_select="dct"
1626 mpegvideo_select="dsputil hpeldsp videodsp"
1627 mpegvideoenc_select="mpegvideo"
1628
1629 # decoders / encoders
1630 aac_decoder_select="mdct sinewin"
1631 aac_encoder_select="audio_frame_queue mdct sinewin"
1632 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1633 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1634 ac3_encoder_select="mdct ac3dsp dsputil"
1635 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1636 aic_decoder_select="dsputil golomb"
1637 alac_encoder_select="lpc"
1638 als_decoder_select="dsputil"
1639 amrnb_decoder_select="lsp"
1640 amrwb_decoder_select="lsp"
1641 amv_decoder_select="sp5x_decoder"
1642 ape_decoder_select="dsputil"
1643 asv1_decoder_select="dsputil"
1644 asv1_encoder_select="dsputil"
1645 asv2_decoder_select="dsputil"
1646 asv2_encoder_select="dsputil"
1647 atrac1_decoder_select="mdct sinewin"
1648 atrac3_decoder_select="mdct"
1649 atrac3p_decoder_select="mdct sinewin"
1650 bink_decoder_select="dsputil hpeldsp"
1651 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1652 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1653 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1654 cllc_decoder_select="dsputil"
1655 comfortnoise_encoder_select="lpc"
1656 cook_decoder_select="dsputil mdct sinewin"
1657 cscd_decoder_select="lzo"
1658 cscd_decoder_suggest="zlib"
1659 dca_decoder_select="mdct"
1660 dnxhd_decoder_select="dsputil"
1661 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1662 dvvideo_decoder_select="dsputil"
1663 dvvideo_encoder_select="dsputil"
1664 dxa_decoder_deps="zlib"
1665 eac3_decoder_select="ac3_decoder"
1666 eac3_encoder_select="ac3_encoder"
1667 eamad_decoder_select="aandcttables dsputil mpegvideo"
1668 eatgq_decoder_select="aandcttables dsputil"
1669 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1670 ffv1_decoder_select="dsputil golomb rangecoder"
1671 ffv1_encoder_select="dsputil rangecoder"
1672 ffvhuff_decoder_select="dsputil"
1673 ffvhuff_encoder_select="dsputil huffman"
1674 fic_decoder_select="dsputil golomb"
1675 flac_decoder_select="golomb"
1676 flac_encoder_select="dsputil golomb lpc"
1677 flashsv_decoder_deps="zlib"
1678 flashsv_encoder_deps="zlib"
1679 flashsv2_decoder_deps="zlib"
1680 flv_decoder_select="h263_decoder"
1681 flv_encoder_select="h263_encoder"
1682 fourxm_decoder_select="dsputil"
1683 fraps_decoder_select="dsputil huffman"
1684 g2m_decoder_deps="zlib"
1685 g2m_decoder_select="dsputil"
1686 h261_decoder_select="error_resilience mpegvideo"
1687 h261_encoder_select="aandcttables mpegvideoenc"
1688 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1689 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1690 h263i_decoder_select="h263_decoder"
1691 h263p_encoder_select="h263_encoder"
1692 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1693 h264_decoder_suggest="error_resilience"
1694 hevc_decoder_select="dsputil golomb videodsp"
1695 huffyuv_decoder_select="dsputil"
1696 huffyuv_encoder_select="dsputil huffman"
1697 iac_decoder_select="dsputil fft mdct sinewin"
1698 imc_decoder_select="dsputil fft mdct sinewin"
1699 indeo3_decoder_select="hpeldsp"
1700 interplay_video_decoder_select="hpeldsp"
1701 jpegls_decoder_select="dsputil golomb hpeldsp"
1702 jpegls_encoder_select="golomb"
1703 jv_decoder_select="dsputil"
1704 lagarith_decoder_select="dsputil"
1705 ljpeg_encoder_select="aandcttables mpegvideoenc"
1706 loco_decoder_select="golomb"
1707 mdec_decoder_select="dsputil error_resilience mpegvideo"
1708 metasound_decoder_select="lsp mdct sinewin"
1709 mimic_decoder_select="dsputil hpeldsp"
1710 mjpeg_decoder_select="dsputil hpeldsp"
1711 mjpegb_decoder_select="dsputil hpeldsp"
1712 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1713 mlp_decoder_select="dsputil mlp_parser"
1714 motionpixels_decoder_select="dsputil"
1715 mp1_decoder_select="mpegaudio"
1716 mp1float_decoder_select="mpegaudio"
1717 mp2_decoder_select="mpegaudio"
1718 mp2float_decoder_select="mpegaudio"
1719 mp3_decoder_select="mpegaudio"
1720 mp3adu_decoder_select="mpegaudio"
1721 mp3adufloat_decoder_select="mpegaudio"
1722 mp3float_decoder_select="mpegaudio"
1723 mp3on4_decoder_select="mpegaudio"
1724 mp3on4float_decoder_select="mpegaudio"
1725 mpc7_decoder_select="dsputil mpegaudiodsp"
1726 mpc8_decoder_select="dsputil mpegaudiodsp"
1727 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1728 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1729 mpeg1video_decoder_select="error_resilience mpegvideo"
1730 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1731 mpeg2video_decoder_select="error_resilience mpegvideo"
1732 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1733 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1734 mpeg4_encoder_select="h263_encoder"
1735 msmpeg4v1_decoder_select="h263_decoder"
1736 msmpeg4v2_decoder_select="h263_decoder"
1737 msmpeg4v2_encoder_select="h263_encoder"
1738 msmpeg4v3_decoder_select="h263_decoder"
1739 msmpeg4v3_encoder_select="h263_encoder"
1740 mss2_decoder_select="error_resilience vc1_decoder"
1741 mxpeg_decoder_select="dsputil hpeldsp"
1742 nellymoser_decoder_select="mdct sinewin"
1743 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1744 nuv_decoder_select="dsputil lzo"
1745 png_decoder_deps="zlib"
1746 png_decoder_select="dsputil"
1747 png_encoder_deps="zlib"
1748 png_encoder_select="dsputil"
1749 prores_decoder_select="dsputil"
1750 prores_encoder_select="dsputil"
1751 qcelp_decoder_select="lsp"
1752 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1753 ra_144_encoder_select="audio_frame_queue lpc"
1754 ralf_decoder_select="golomb"
1755 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1756 rv10_encoder_select="h263_encoder"
1757 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1758 rv20_encoder_select="h263_encoder"
1759 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1760 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1761 shorten_decoder_select="golomb"
1762 sipr_decoder_select="lsp"
1763 sp5x_decoder_select="dsputil hpeldsp"
1764 svq1_decoder_select="hpeldsp"
1765 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1766 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1767 svq3_decoder_suggest="error_resilience zlib"
1768 tak_decoder_select="dsputil"
1769 theora_decoder_select="vp3_decoder"
1770 tiff_decoder_suggest="zlib"
1771 tiff_encoder_suggest="zlib"
1772 thp_decoder_select="dsputil hpeldsp"
1773 truehd_decoder_select="mlp_decoder"
1774 truemotion2_decoder_select="dsputil"
1775 truespeech_decoder_select="dsputil"
1776 tscc_decoder_deps="zlib"
1777 twinvq_decoder_select="mdct lsp sinewin"
1778 utvideo_decoder_select="dsputil"
1779 utvideo_encoder_select="dsputil huffman"
1780 vble_decoder_select="dsputil"
1781 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1782 vc1image_decoder_select="vc1_decoder"
1783 vorbis_decoder_select="mdct"
1784 vorbis_encoder_select="mdct"
1785 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1786 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1787 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1788 vp6a_decoder_select="vp6_decoder"
1789 vp6f_decoder_select="vp6_decoder"
1790 vp8_decoder_select="h264pred videodsp"
1791 vp9_decoder_select="videodsp"
1792 webp_decoder_select="vp8_decoder"
1793 wmapro_decoder_select="mdct sinewin"
1794 wmav1_decoder_select="mdct sinewin"
1795 wmav1_encoder_select="mdct sinewin"
1796 wmav2_decoder_select="mdct sinewin"
1797 wmav2_encoder_select="mdct sinewin"
1798 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1799 wmv1_decoder_select="h263_decoder"
1800 wmv1_encoder_select="h263_encoder"
1801 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1802 wmv2_encoder_select="h263_encoder"
1803 wmv3_decoder_select="vc1_decoder"
1804 wmv3image_decoder_select="wmv3_decoder"
1805 zerocodec_decoder_deps="zlib"
1806 zlib_decoder_deps="zlib"
1807 zlib_encoder_deps="zlib"
1808 zmbv_decoder_deps="zlib"
1809 zmbv_encoder_deps="zlib"
1810
1811 # hardware accelerators
1812 dxva2_deps="dxva2api_h"
1813 vaapi_deps="va_va_h"
1814 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1815 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1816 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1817
1818 h263_vaapi_hwaccel_deps="vaapi"
1819 h263_vaapi_hwaccel_select="h263_decoder"
1820 h263_vdpau_hwaccel_deps="vdpau"
1821 h263_vdpau_hwaccel_select="h263_decoder"
1822 h264_dxva2_hwaccel_deps="dxva2"
1823 h264_dxva2_hwaccel_select="h264_decoder"
1824 h264_vaapi_hwaccel_deps="vaapi"
1825 h264_vaapi_hwaccel_select="h264_decoder"
1826 h264_vda_hwaccel_deps="vda"
1827 h264_vda_hwaccel_select="h264_decoder"
1828 h264_vdpau_hwaccel_deps="vdpau"
1829 h264_vdpau_hwaccel_select="h264_decoder"
1830 mpeg1_vdpau_hwaccel_deps="vdpau"
1831 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1832 mpeg2_dxva2_hwaccel_deps="dxva2"
1833 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1834 mpeg2_vaapi_hwaccel_deps="vaapi"
1835 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1836 mpeg2_vdpau_hwaccel_deps="vdpau"
1837 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1838 mpeg4_vaapi_hwaccel_deps="vaapi"
1839 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1840 mpeg4_vdpau_hwaccel_deps="vdpau"
1841 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1842 vc1_dxva2_hwaccel_deps="dxva2"
1843 vc1_dxva2_hwaccel_select="vc1_decoder"
1844 vc1_vaapi_hwaccel_deps="vaapi"
1845 vc1_vaapi_hwaccel_select="vc1_decoder"
1846 vc1_vdpau_hwaccel_deps="vdpau"
1847 vc1_vdpau_hwaccel_select="vc1_decoder"
1848 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1849 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1850 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1851
1852 # parsers
1853 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1854 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
1855 mpegvideo_parser_select="error_resilience mpegvideo"
1856 vc1_parser_select="mpegvideo"
1857
1858 # external libraries
1859 libfaac_encoder_deps="libfaac"
1860 libfaac_encoder_select="audio_frame_queue"
1861 libfdk_aac_decoder_deps="libfdk_aac"
1862 libfdk_aac_encoder_deps="libfdk_aac"
1863 libfdk_aac_encoder_select="audio_frame_queue"
1864 libgsm_decoder_deps="libgsm"
1865 libgsm_encoder_deps="libgsm"
1866 libgsm_ms_decoder_deps="libgsm"
1867 libgsm_ms_encoder_deps="libgsm"
1868 libilbc_decoder_deps="libilbc"
1869 libilbc_encoder_deps="libilbc"
1870 libmp3lame_encoder_deps="libmp3lame"
1871 libmp3lame_encoder_select="audio_frame_queue"
1872 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1873 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1874 libopencore_amrnb_encoder_select="audio_frame_queue"
1875 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1876 libopenjpeg_decoder_deps="libopenjpeg"
1877 libopenjpeg_encoder_deps="libopenjpeg"
1878 libopus_decoder_deps="libopus"
1879 libopus_encoder_deps="libopus"
1880 libopus_encoder_select="audio_frame_queue"
1881 libschroedinger_decoder_deps="libschroedinger"
1882 libschroedinger_encoder_deps="libschroedinger"
1883 libspeex_decoder_deps="libspeex"
1884 libspeex_encoder_deps="libspeex"
1885 libspeex_encoder_select="audio_frame_queue"
1886 libtheora_encoder_deps="libtheora"
1887 libvo_aacenc_encoder_deps="libvo_aacenc"
1888 libvo_aacenc_encoder_select="audio_frame_queue"
1889 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1890 libvorbis_encoder_deps="libvorbis"
1891 libvorbis_encoder_select="audio_frame_queue"
1892 libvpx_vp8_decoder_deps="libvpx"
1893 libvpx_vp8_encoder_deps="libvpx"
1894 libvpx_vp9_decoder_deps="libvpx"
1895 libvpx_vp9_encoder_deps="libvpx"
1896 libwavpack_encoder_deps="libwavpack"
1897 libwebp_encoder_deps="libwebp"
1898 libx264_encoder_deps="libx264"
1899 libx265_encoder_deps="libx265"
1900 libxavs_encoder_deps="libxavs"
1901 libxvid_encoder_deps="libxvid"
1902
1903 # demuxers / muxers
1904 ac3_demuxer_select="ac3_parser"
1905 asf_demuxer_select="riffdec"
1906 asf_muxer_select="riffenc"
1907 asf_stream_muxer_select="asf_muxer"
1908 avi_demuxer_select="riffdec"
1909 avi_muxer_select="riffenc"
1910 avisynth_demuxer_deps="avisynth"
1911 avisynth_demuxer_select="riffdec"
1912 caf_demuxer_select="riffdec"
1913 dirac_demuxer_select="dirac_parser"
1914 dxa_demuxer_select="riffdec"
1915 eac3_demuxer_select="ac3_parser"
1916 f4v_muxer_select="mov_muxer"
1917 flac_demuxer_select="flac_parser"
1918 hds_muxer_select="flv_muxer"
1919 hls_muxer_select="mpegts_muxer"
1920 ipod_muxer_select="mov_muxer"
1921 ismv_muxer_select="mov_muxer"
1922 matroska_audio_muxer_select="matroska_muxer"
1923 matroska_demuxer_select="riffdec"
1924 matroska_demuxer_suggest="bzlib lzo zlib"
1925 matroska_muxer_select="riffenc"
1926 mmf_muxer_select="riffenc"
1927 mov_demuxer_select="riffdec"
1928 mov_demuxer_suggest="zlib"
1929 mov_muxer_select="riffenc rtpenc_chain"
1930 mp3_demuxer_select="mpegaudio_parser"
1931 mp4_muxer_select="mov_muxer"
1932 mpegts_muxer_select="adts_muxer latm_muxer"
1933 mpegtsraw_demuxer_select="mpegts_demuxer"
1934 mxf_d10_muxer_select="mxf_muxer"
1935 nut_muxer_select="riffenc"
1936 nuv_demuxer_select="riffdec"
1937 ogg_demuxer_select="golomb"
1938 psp_muxer_select="mov_muxer"
1939 rtp_demuxer_select="sdp_demuxer"
1940 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1941 rtsp_demuxer_select="http_protocol rtpdec"
1942 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1943 sap_demuxer_select="sdp_demuxer"
1944 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1945 sdp_demuxer_select="rtpdec"
1946 smoothstreaming_muxer_select="ismv_muxer"
1947 spdif_muxer_select="aac_parser"
1948 tak_demuxer_select="tak_parser"
1949 tg2_muxer_select="mov_muxer"
1950 tgp_muxer_select="mov_muxer"
1951 w64_demuxer_select="wav_demuxer"
1952 wav_demuxer_select="riffdec"
1953 wav_muxer_select="riffenc"
1954 webm_muxer_select="riffenc"
1955 wtv_demuxer_select="riffdec"
1956 xmv_demuxer_select="riffdec"
1957 xwma_demuxer_select="riffdec"
1958
1959 # indevs / outdevs
1960 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1961 alsa_outdev_deps="alsa_asoundlib_h"
1962 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1963 dv1394_indev_deps="dv1394"
1964 dv1394_indev_select="dv_demuxer"
1965 fbdev_indev_deps="linux_fb_h"
1966 jack_indev_deps="jack_jack_h pthreads"
1967 libcdio_indev_deps="libcdio"
1968 libdc1394_indev_deps="libdc1394"
1969 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1970 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1971 pulse_indev_deps="libpulse"
1972 sndio_indev_deps="sndio_h"
1973 sndio_outdev_deps="sndio_h"
1974 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1975 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1976 vfwcap_indev_extralibs="-lavicap32"
1977 x11grab_indev_deps="x11grab XShmCreateImage"
1978
1979 # protocols
1980 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1981 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1982 ffrtmpcrypt_protocol_select="tcp_protocol"
1983 ffrtmphttp_protocol_deps="!librtmp_protocol"
1984 ffrtmphttp_protocol_select="http_protocol"
1985 gopher_protocol_select="network"
1986 httpproxy_protocol_select="tcp_protocol"
1987 http_protocol_select="tcp_protocol"
1988 https_protocol_select="tls_protocol"
1989 librtmp_protocol_deps="librtmp"
1990 librtmpe_protocol_deps="librtmp"
1991 librtmps_protocol_deps="librtmp"
1992 librtmpt_protocol_deps="librtmp"
1993 librtmpte_protocol_deps="librtmp"
1994 mmsh_protocol_select="http_protocol"
1995 mmst_protocol_select="network"
1996 rtmp_protocol_deps="!librtmp_protocol"
1997 rtmp_protocol_select="tcp_protocol"
1998 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1999 rtmps_protocol_deps="!librtmp_protocol"
2000 rtmps_protocol_select="tls_protocol"
2001 rtmpt_protocol_select="ffrtmphttp_protocol"
2002 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2003 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2004 rtp_protocol_select="udp_protocol"
2005 sctp_protocol_deps="struct_sctp_event_subscribe"
2006 sctp_protocol_select="network"
2007 srtp_protocol_select="rtp_protocol"
2008 tcp_protocol_select="network"
2009 tls_protocol_deps_any="openssl gnutls"
2010 tls_protocol_select="tcp_protocol"
2011 udp_protocol_select="network"
2012 unix_protocol_deps="sys_un_h"
2013 unix_protocol_select="network"
2014
2015 # filters
2016 blackframe_filter_deps="gpl"
2017 boxblur_filter_deps="gpl"
2018 compand_filter_deps="strtok_r"
2019 cropdetect_filter_deps="gpl"
2020 delogo_filter_deps="gpl"
2021 drawtext_filter_deps="libfreetype"
2022 frei0r_filter_deps="frei0r dlopen strtok_r"
2023 frei0r_filter_extralibs='$ldl'
2024 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2025 frei0r_src_filter_extralibs='$ldl'
2026 hqdn3d_filter_deps="gpl"
2027 interlace_filter_deps="gpl"
2028 resample_filter_deps="avresample"
2029 ocv_filter_deps="libopencv"
2030 scale_filter_deps="swscale"
2031
2032 # examples
2033 avcodec_example_deps="avcodec avutil"
2034 filter_audio_example_deps="avfilter avutil"
2035 metadata_example_deps="avformat avutil"
2036 output_example_deps="avcodec avformat avutil swscale"
2037 transcode_aac_example_deps="avcodec avformat avresample"
2038
2039 # libraries
2040 avcodec_deps="avutil"
2041 avdevice_deps="avutil avcodec avformat"
2042 avfilter_deps="avutil"
2043 avformat_deps="avutil avcodec"
2044 avresample_deps="avutil"
2045 swscale_deps="avutil"
2046
2047 # programs
2048 avconv_deps="avcodec avfilter avformat avresample swscale"
2049 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2050 fps_filter null_filter resample_filter scale_filter
2051 setpts_filter trim_filter"
2052 avplay_deps="avcodec avformat avresample swscale sdl"
2053 avplay_libs='$sdl_libs'
2054 avplay_select="rdft"
2055 avprobe_deps="avcodec avformat"
2056 avserver_deps="avformat fork !shared"
2057 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2058
2059 # documentation
2060 pod2man_deps="doc"
2061 texi2html_deps="doc"
2062
2063 # default parameters
2064
2065 logfile="config.log"
2066
2067 # installation paths
2068 prefix_default="/usr/local"
2069 bindir_default='${prefix}/bin'
2070 datadir_default='${prefix}/share/avconv'
2071 docdir_default='${prefix}/share/doc/libav'
2072 incdir_default='${prefix}/include'
2073 libdir_default='${prefix}/lib'
2074 mandir_default='${prefix}/share/man'
2075 shlibdir_default="$libdir_default"
2076
2077 # toolchain
2078 ar_default="ar"
2079 cc_default="gcc"
2080 host_cc_default="gcc"
2081 cp_f="cp -f"
2082 ln_s="ln -s -f"
2083 nm_default="nm -g"
2084 objformat="elf"
2085 pkg_config_default=pkg-config
2086 ranlib="ranlib"
2087 strip="strip"
2088 yasmexe="yasm"
2089
2090 nogas=":"
2091
2092 # machine
2093 arch_default=$(uname -m)
2094 cpu="generic"
2095
2096 # OS
2097 target_os_default=$(tolower $(uname -s))
2098 host_os=$target_os_default
2099
2100 # configurable options
2101 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2102
2103 enable asm
2104 enable debug
2105 enable doc
2106 enable optimizations
2107 enable safe_bitstream_reader
2108 enable static
2109 enable swscale_alpha
2110
2111 # By default, enable only those hwaccels that have no external dependencies.
2112 enable dxva2 vdpau
2113
2114 # build settings
2115 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2116 LIBPREF="lib"
2117 LIBSUF=".a"
2118 FULLNAME='$(NAME)$(BUILDSUF)'
2119 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2120 SLIBPREF="lib"
2121 SLIBSUF=".so"
2122 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2123 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2124 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2125 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2126 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2127 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2128
2129 asflags_filter=echo
2130 cflags_filter=echo
2131 ldflags_filter=echo
2132
2133 AS_C='-c'
2134 AS_O='-o $@'
2135 CC_C='-c'
2136 CC_E='-E -o $@'
2137 CC_O='-o $@'
2138 LD_O='-o $@'
2139 LD_LIB='-l%'
2140 LD_PATH='-L'
2141 HOSTCC_C='-c'
2142 HOSTCC_E='-E -o $@'
2143 HOSTCC_O='-o $@'
2144 HOSTLD_O='-o $@'
2145
2146 host_libs='-lm'
2147 host_cflags_filter=echo
2148 host_ldflags_filter=echo
2149
2150 target_path='$(CURDIR)'
2151
2152 # since the object filename is not given with the -MM flag, the compiler
2153 # is only able to print the basename, and we must add the path ourselves
2154 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2155 DEPFLAGS='-MM'
2156
2157 # find source path
2158 if test -f configure; then
2159 source_path=.
2160 else
2161 source_path=$(cd $(dirname "$0"); pwd)
2162 echo "$source_path" | grep -q '[[:blank:]]' &&
2163 die "Out of tree builds are impossible with whitespace in source path."
2164 test -e "$source_path/config.h" &&
2165 die "Out of tree builds are impossible with config.h in source dir."
2166 fi
2167
2168 for v in "$@"; do
2169 r=${v#*=}
2170 l=${v%"$r"}
2171 r=$(sh_quote "$r")
2172 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2173 done
2174
2175 find_things(){
2176 thing=$1
2177 pattern=$2
2178 file=$source_path/$3
2179 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2180 }
2181
2182 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2183 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2184 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2185 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2186 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2187 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2188 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2189 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2190 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2191 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2192 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2193
2194 ALL_COMPONENTS="
2195 $BSF_LIST
2196 $DECODER_LIST
2197 $DEMUXER_LIST
2198 $ENCODER_LIST
2199 $FILTER_LIST
2200 $HWACCEL_LIST
2201 $INDEV_LIST
2202 $MUXER_LIST
2203 $OUTDEV_LIST
2204 $PARSER_LIST
2205 $PROTOCOL_LIST
2206 "
2207
2208 for n in $COMPONENT_LIST; do
2209 v=$(toupper ${n%s})_LIST
2210 eval enable \$$v
2211 eval ${n}_if_any="\$$v"
2212 done
2213
2214 enable $ARCH_EXT_LIST
2215
2216 die_unknown(){
2217 echo "Unknown option \"$1\"."
2218 echo "See $0 --help for available options."
2219 exit 1
2220 }
2221
2222 print_3_columns() {
2223 cat | tr ' ' '\n' | sort | pr -r -3 -t
2224 }
2225
2226 show_list() {
2227 suffix=_$1
2228 shift
2229 echo $* | sed s/$suffix//g | print_3_columns
2230 exit 0
2231 }
2232
2233 rand_list(){
2234 IFS=', '
2235 set -- $*
2236 unset IFS
2237 for thing; do
2238 comp=${thing%:*}
2239 prob=${thing#$comp}
2240 prob=${prob#:}
2241 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2242 echo "prob ${prob:-0.5}"
2243 printf '%s\n' $comp
2244 done
2245 }
2246
2247 do_random(){
2248 action=$1
2249 shift
2250 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2251 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2252 }
2253
2254 for opt do
2255 optval="${opt#*=}"
2256 case "$opt" in
2257 --extra-ldflags=*)
2258 add_ldflags $optval
2259 ;;
2260 --extra-libs=*)
2261 add_extralibs $optval
2262 ;;
2263 --disable-devices)
2264 disable $INDEV_LIST $OUTDEV_LIST
2265 ;;
2266 --enable-debug=*)
2267 debuglevel="$optval"
2268 ;;
2269 --disable-programs)
2270 disable $PROGRAM_LIST
2271 ;;
2272 --disable-everything)
2273 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2274 ;;
2275 --disable-all)
2276 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2277 disable $LIBRARY_LIST $PROGRAM_LIST doc
2278 ;;
2279 --enable-random|--disable-random)
2280 action=${opt%%-random}
2281 do_random ${action#--} $COMPONENT_LIST
2282 ;;
2283 --enable-random=*|--disable-random=*)
2284 action=${opt%%-random=*}
2285 do_random ${action#--} $optval
2286 ;;
2287 --enable-*=*|--disable-*=*)
2288 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2289 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2290 eval list=\$$(toupper $thing)_LIST
2291 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2292 $action $(filter "$name" $list)
2293 ;;
2294 --enable-?*|--disable-?*)
2295 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2296 if is_in $option $COMPONENT_LIST; then
2297 test $action = disable && action=unset
2298 eval $action \$$(toupper ${option%s})_LIST
2299 elif is_in $option $CMDLINE_SELECT; then
2300 $action $option
2301 else
2302 die_unknown $opt
2303 fi
2304 ;;
2305 --list-*)
2306 NAME="${opt#--list-}"
2307 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2308 NAME=${NAME%s}
2309 eval show_list $NAME \$$(toupper $NAME)_LIST
2310 ;;
2311 --help|-h) show_help
2312 ;;
2313 *)
2314 optname="${opt%%=*}"
2315 optname="${optname#--}"
2316 optname=$(echo "$optname" | sed 's/-/_/g')
2317 if is_in $optname $CMDLINE_SET; then
2318 eval $optname='$optval'
2319 elif is_in $optname $CMDLINE_APPEND; then
2320 append $optname "$optval"
2321 else
2322 die_unknown $opt
2323 fi
2324 ;;
2325 esac
2326 done
2327
2328 disabled logging && logfile=/dev/null
2329
2330 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2331 set >> $logfile
2332
2333 test -n "$cross_prefix" && enable cross_compile
2334
2335 if enabled cross_compile; then
2336 test -n "$arch" && test -n "$target_os" ||
2337 die "Must specify target arch and OS when cross-compiling"
2338 fi
2339
2340 ar_default="${cross_prefix}${ar_default}"
2341 cc_default="${cross_prefix}${cc_default}"
2342 nm_default="${cross_prefix}${nm_default}"
2343 pkg_config_default="${cross_prefix}${pkg_config_default}"
2344 ranlib="${cross_prefix}${ranlib}"
2345 strip="${cross_prefix}${strip}"
2346
2347 sysinclude_default="${sysroot}/usr/include"
2348
2349 case "$toolchain" in
2350 clang-asan)
2351 cc_default="clang"
2352 add_cflags -fsanitize=address
2353 add_ldflags -fsanitize=address
2354 ;;
2355 clang-tsan)
2356 cc_default="clang"
2357 add_cflags -fsanitize=thread -pie
2358 add_ldflags -fsanitize=thread -pie
2359 ;;
2360 clang-usan)
2361 cc_default="clang"
2362 add_cflags -fsanitize=undefined
2363 add_ldflags -fsanitize=undefined
2364 ;;
2365 gcc-asan)
2366 cc_default="gcc"
2367 add_cflags -fsanitize=address
2368 add_ldflags -fsanitize=address
2369 ;;
2370 gcc-tsan)
2371 cc_default="gcc"
2372 add_cflags -fsanitize=thread -pie -fPIC
2373 add_ldflags -fsanitize=thread -pie -fPIC
2374 ;;
2375 gcc-usan)
2376 cc_default="gcc"
2377 add_cflags -fsanitize=undefined
2378 add_ldflags -fsanitize=undefined
2379 ;;
2380 valgrind-massif)
2381 target_exec_default="valgrind"
2382 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2383 ;;
2384 valgrind-memcheck)
2385 target_exec_default="valgrind"
2386 target_exec_args="--track-origins=yes --leak-check=full"
2387 ;;
2388 msvc)
2389 # Check whether the current MSVC version needs the C99 converter.
2390 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2391 # support enough of C99 to build libav. Default to the new
2392 # behaviour if the regexp was unable to match anything, since this
2393 # successfully parses the version number of existing supported
2394 # versions that require the converter (MSVC 2010 and 2012).
2395 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2396 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2397 cc_default="cl"
2398 else
2399 cc_default="c99wrap cl"
2400 fi
2401 ld_default="link"
2402 nm_default="dumpbin -symbols"
2403 ar_default="lib"
2404 target_os_default="win32"
2405 # Use a relative path for TMPDIR. This makes sure all the
2406 # ffconf temp files are written with a relative path, avoiding
2407 # issues with msys/win32 path conversion for MSVC parameters
2408 # such as -Fo<file> or -out:<file>.
2409 TMPDIR=.
2410 ;;
2411 icl)
2412 cc_default="icl"
2413 ld_default="xilink"
2414 nm_default="dumpbin -symbols"
2415 ar_default="xilib"
2416 target_os_default="win32"
2417 TMPDIR=.
2418 ;;
2419 gcov)
2420 add_cflags -fprofile-arcs -ftest-coverage
2421 add_ldflags -fprofile-arcs -ftest-coverage
2422 ;;
2423 hardened)
2424 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2425 add_ldflags -Wl,-z,relro -Wl,-z,now
2426 ;;
2427 ?*)
2428 die "Unknown toolchain $toolchain"
2429 ;;
2430 esac
2431
2432 set_default arch cc pkg_config sysinclude target_exec target_os
2433 enabled cross_compile || host_cc_default=$cc
2434 set_default host_cc
2435
2436 if ! $pkg_config --version >/dev/null 2>&1; then
2437 warn "$pkg_config not found, library detection may fail."
2438 pkg_config=false
2439 fi
2440
2441 exesuf() {
2442 case $1 in
2443 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2444 esac
2445 }
2446
2447 EXESUF=$(exesuf $target_os)
2448 HOSTEXESUF=$(exesuf $host_os)
2449
2450 # set temporary file name
2451 : ${TMPDIR:=$TEMPDIR}
2452 : ${TMPDIR:=$TMP}
2453 : ${TMPDIR:=/tmp}
2454
2455 if ! check_cmd mktemp -u XXXXXX; then
2456 # simple replacement for missing mktemp
2457 # NOT SAFE FOR GENERAL USE
2458 mktemp(){
2459 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2460 }
2461 fi
2462
2463 tmpfile(){
2464 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2465 (set -C; exec > $tmp) 2>/dev/null ||
2466 die "Unable to create temporary file in $TMPDIR."
2467 append TMPFILES $tmp
2468 eval $1=$tmp
2469 }
2470
2471 trap 'rm -f -- $TMPFILES' EXIT
2472
2473 tmpfile TMPASM .asm
2474 tmpfile TMPC .c
2475 tmpfile TMPE $EXESUF
2476 tmpfile TMPH .h
2477 tmpfile TMPO .o
2478 tmpfile TMPS .S
2479 tmpfile TMPSH .sh
2480 tmpfile TMPV .ver
2481
2482 unset -f mktemp
2483
2484 chmod +x $TMPE
2485
2486 # make sure we can execute files in $TMPDIR
2487 cat > $TMPSH 2>> $logfile <<EOF
2488 #! /bin/sh
2489 EOF
2490 chmod +x $TMPSH >> $logfile 2>&1
2491 if ! $TMPSH >> $logfile 2>&1; then
2492 cat <<EOF
2493 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2494 variable to another directory and make sure that it is not mounted noexec.
2495 EOF
2496 die "Sanity test failed."
2497 fi
2498
2499 ccc_flags(){
2500 for flag; do
2501 case $flag in
2502 -std=c99) echo -c99 ;;
2503 -mcpu=*) echo -arch ${flag#*=} ;;
2504 -mieee) echo -ieee ;;
2505 -O*|-fast) echo $flag ;;
2506 -fno-math-errno) echo -assume nomath_errno ;;
2507 -g) echo -g3 ;;
2508 -Wall) echo -msg_enable level2 ;;
2509 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2510 -Wl,*) echo $flag ;;
2511 -f*|-W*) ;;
2512 *) echo $flag ;;
2513 esac
2514 done
2515 }
2516
2517 cparser_flags(){
2518 for flag; do
2519 case $flag in
2520 -Wno-switch) echo -Wno-switch-enum ;;
2521 -Wno-format-zero-length) ;;
2522 -Wdisabled-optimization) ;;
2523 -Wno-pointer-sign) echo -Wno-other ;;
2524 *) echo $flag ;;
2525 esac
2526 done
2527 }
2528
2529 msvc_common_flags(){
2530 for flag; do
2531 case $flag in
2532 # In addition to specifying certain flags under the compiler
2533 # specific filters, they must be specified here as well or else the
2534 # generic catch all at the bottom will print the original flag.
2535 -Wall) ;;
2536 -std=c99) ;;
2537 # Common flags
2538 -fomit-frame-pointer) ;;
2539 -g) echo -Z7 ;;
2540 -fno-math-errno) ;;
2541 -fno-common) ;;
2542 -fno-signed-zeros) ;;
2543 -fPIC) ;;
2544 -mthumb) ;;
2545 -march=*) ;;
2546 -lz) echo zlib.lib ;;
2547 -lavifil32) echo vfw32.lib ;;
2548 -lavicap32) echo vfw32.lib user32.lib ;;
2549 -l*) echo ${flag#-l}.lib ;;
2550 *) echo $flag ;;
2551 esac
2552 done
2553 }
2554
2555 msvc_flags(){
2556 msvc_common_flags "$@"
2557 for flag; do
2558 case $flag in
2559 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2560 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2561 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2562 -wd4273 ;;
2563 esac
2564 done
2565 }
2566
2567 icl_flags(){
2568 msvc_common_flags "$@"
2569 for flag; do
2570 case $flag in
2571 # Despite what Intel's documentation says -Wall, which is supported
2572 # on Windows, does enable remarks so disable them here.
2573 -Wall) echo $flag -Qdiag-disable:remark ;;
2574 -std=c99) echo -Qstd=c99 ;;
2575 esac
2576 done
2577 }
2578
2579 pgi_flags(){
2580 for flag; do
2581 case $flag in
2582 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2583 -fomit-frame-pointer) echo -Mnoframe ;;
2584 -g) echo -gopt ;;
2585 *) echo $flag ;;
2586 esac
2587 done
2588 }
2589
2590 suncc_flags(){
2591 for flag; do
2592 case $flag in
2593 -march=*|-mcpu=*)
2594 case "${flag#*=}" in
2595 native) echo -xtarget=native ;;
2596 v9|niagara) echo -xarch=sparc ;;
2597 ultrasparc) echo -xarch=sparcvis ;;
2598 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2599 i586|pentium) echo -xchip=pentium ;;
2600 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2601 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2602 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2603 pentium4*) echo -xtarget=pentium4 ;;
2604 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2605 *-sse3) echo -xarch=sse3 ;;
2606 core2) echo -xarch=ssse3 -xchip=core2 ;;
2607 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2608 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2609 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2610 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2611 k8|opteron|athlon64|athlon-fx)
2612 echo -xarch=sse2a ;;
2613 athlon*) echo -xarch=pentium_proa ;;
2614 esac
2615 ;;
2616 -std=c99) echo -xc99 ;;
2617 -fomit-frame-pointer) echo -xregs=frameptr ;;
2618 -fPIC) echo -KPIC -xcode=pic32 ;;
2619 -W*,*) echo $flag ;;
2620 -f*-*|-W*|-mimpure-text) ;;
2621 -shared) echo -G ;;
2622 *) echo $flag ;;
2623 esac
2624 done
2625 }
2626
2627 tms470_flags(){
2628 for flag; do
2629 case $flag in
2630 -march=*|-mcpu=*)
2631 case "${flag#*=}" in
2632 armv7-a|cortex-a*) echo -mv=7a8 ;;
2633 armv7-r|cortex-r*) echo -mv=7r4 ;;
2634 armv7-m|cortex-m*) echo -mv=7m3 ;;
2635 armv6*|arm11*) echo -mv=6 ;;
2636 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2637 echo -mv=5e ;;
2638 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2639 esac
2640 ;;
2641 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2642 -mfpu=vfp) echo --float_support=vfpv2 ;;
2643 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2644 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2645 -msoft-float) echo --float_support=vfplib ;;
2646 -O[0-3]|-mf=*) echo $flag ;;
2647 -g) echo -g -mn ;;
2648 -pds=*) echo $flag ;;
2649 -D*|-I*) echo $flag ;;
2650 --gcc|--abi=*) echo $flag ;;
2651 -me) echo $flag ;;
2652 esac
2653 done
2654 }
2655
2656 probe_cc(){
2657 pfx=$1
2658 _cc=$2
2659
2660 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2661 unset _ld_o _ldflags _ld_lib _ld_path
2662 unset _depflags _DEPCMD _DEPFLAGS
2663 _flags_filter=echo
2664
2665 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2666 _type=llvm_gcc
2667 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2668 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2669 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2670 _cflags_speed='-O3'
2671 _cflags_size='-Os'
2672 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2673 _type=gcc
2674 gcc_version=$($_cc --version | head -n1)
2675 gcc_basever=$($_cc -dumpversion)
2676 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2677 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2678 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2679 if ! $_cc -dumpversion | grep -q '^2\.'; then
2680 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2681 fi
2682 _cflags_speed='-O3'
2683 _cflags_size='-Os'
2684 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2685 _type=icc
2686 _ident=$($_cc --version | head -n1)
2687 _depflags='-MMD'
2688 _cflags_speed='-O3'
2689 _cflags_size='-Os'
2690 _cflags_noopt='-O1'
2691 elif $_cc -v 2>&1 | grep -q xlc; then
2692 _type=xlc
2693 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2694 _cflags_speed='-O5'
2695 _cflags_size='-O5 -qcompact'
2696 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2697 _type=ccc
2698 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2699 _DEPFLAGS='-M'
2700 _cflags_speed='-fast'
2701 _cflags_size='-O1'
2702 _flags_filter=ccc_flags
2703 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2704 test -d "$sysroot" || die "No valid sysroot specified."
2705 _type=armcc
2706 _ident=$($_cc --vsn | head -n1)
2707 armcc_conf="$PWD/armcc.conf"
2708 $_cc --arm_linux_configure \
2709 --arm_linux_config_file="$armcc_conf" \
2710 --configure_sysroot="$sysroot" \
2711 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2712 die "Error creating armcc configuration file."
2713 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2714 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2715 as_default="${cross_prefix}gcc"
2716 _depflags='-MMD'
2717 _cflags_speed='-O3'
2718 _cflags_size='-Os'
2719 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2720 _type=tms470
2721 _ident=$($_cc -version | head -n1 | tr -s ' ')
2722 _flags='--gcc --abi=eabi -me'
2723 _cc_e='-ppl -fe=$@'
2724 _cc_o='-fe=$@'
2725 _depflags='-ppa -ppd=$(@:.o=.d)'
2726 _cflags_speed='-O3 -mf=5'
2727 _cflags_size='-O3 -mf=2'
2728 _flags_filter=tms470_flags
2729 elif $_cc -v 2>&1 | grep -q clang; then
2730 _type=clang
2731 _ident=$($_cc --version | head -n1)
2732 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2733 _cflags_speed='-O3'
2734 _cflags_size='-Os'
2735 elif $_cc -V 2>&1 | grep -q Sun; then
2736 _type=suncc
2737 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2738 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2739 _DEPFLAGS='-xM1 -xc99'
2740 _ldflags='-std=c99'
2741 _cflags_speed='-O5'
2742 _cflags_size='-O5 -xspace'
2743 _flags_filter=suncc_flags
2744 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2745 _type=pathscale
2746 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2747 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2748 _cflags_speed='-O2'
2749 _cflags_size='-Os'
2750 _flags_filter='filter_out -Wdisabled-optimization'
2751 elif $_cc -v 2>&1 | grep -q Open64; then
2752 _type=open64
2753 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2754 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2755 _cflags_speed='-O2'
2756 _cflags_size='-Os'
2757 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2758 elif $_cc -V 2>&1 | grep -q Portland; then
2759 _type=pgi
2760 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2761 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2762 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2763 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2764 _cflags_noopt="-O1"
2765 _flags_filter=pgi_flags
2766 elif $_cc 2>&1 | grep -q Microsoft; then
2767 _type=msvc
2768 _ident=$($cc 2>&1 | head -n1)
2769 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2770 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2771 _cflags_speed="-O2"
2772 _cflags_size="-O1"
2773 if $_cc 2>&1 | grep -q Linker; then
2774 _ld_o='-out:$@'
2775 else
2776 _ld_o='-Fe$@'
2777 fi
2778 _cc_o='-Fo$@'
2779 _cc_e='-P -Fi$@'
2780 _flags_filter=msvc_flags
2781 _ld_lib='lib%.a'
2782 _ld_path='-libpath:'
2783 _flags='-nologo'
2784 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2785 if [ $pfx = hostcc ]; then
2786 append _cflags -Dsnprintf=_snprintf
2787 fi
2788 elif $_cc 2>&1 | grep -q Intel; then
2789 _type=icl
2790 _ident=$($cc 2>&1 | head -n1)
2791 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2792 # Not only is O3 broken on 13.x+ but it is slower on all previous
2793 # versions (tested) as well.
2794 _cflags_speed="-O2"
2795 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2796 if $_cc 2>&1 | grep -q Linker; then
2797 _ld_o='-out:$@'
2798 else
2799 _ld_o='-Fe$@'
2800 fi
2801 _cc_o='-Fo$@'
2802 _cc_e='-P'
2803 _flags_filter=icl_flags
2804 _ld_lib='lib%.a'
2805 _ld_path='-libpath:'
2806 # -Qdiag-error to make icl error when seeing certain unknown arguments
2807 _flags='-nologo -Qdiag-error:4044,10157'
2808 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2809 # with MSVC which enables it by default.
2810 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2811 if [ $pfx = hostcc ]; then
2812 append _cflags -Dsnprintf=_snprintf
2813 fi
2814 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2815 _type=cparser
2816 _ident=$($_cc --version | head -n1)
2817 _depflags='-MMD'
2818 _cflags_speed='-O4'
2819 _cflags_size='-O2'
2820 _flags_filter=cparser_flags
2821 fi
2822
2823 eval ${pfx}_type=\$_type
2824 eval ${pfx}_ident=\$_ident
2825 }
2826
2827 set_ccvars(){
2828 eval ${1}_C=\${_cc_c-\${${1}_C}}
2829 eval ${1}_E=\${_cc_e-\${${1}_E}}
2830 eval ${1}_O=\${_cc_o-\${${1}_O}}
2831
2832 if [ -n "$_depflags" ]; then
2833 eval ${1}_DEPFLAGS=\$_depflags
2834 else
2835 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2836 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2837 eval DEP${1}FLAGS=\$_flags
2838 fi
2839 }
2840
2841 probe_cc cc "$cc"
2842 cflags_filter=$_flags_filter
2843 cflags_speed=$_cflags_speed
2844 cflags_size=$_cflags_size
2845 cflags_noopt=$_cflags_noopt
2846 add_cflags $_flags $_cflags
2847 cc_ldflags=$_ldflags
2848 set_ccvars CC
2849
2850 probe_cc hostcc "$host_cc"
2851 host_cflags_filter=$_flags_filter
2852 add_host_cflags $_flags $_cflags
2853 set_ccvars HOSTCC
2854
2855 test -n "$cc_type" && enable $cc_type ||
2856 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2857
2858 : ${as_default:=$cc}
2859 : ${dep_cc_default:=$cc}
2860 : ${ld_default:=$cc}
2861 : ${host_ld_default:=$host_cc}
2862 set_default ar as dep_cc ld host_ld
2863
2864 probe_cc as "$as"
2865 asflags_filter=$_flags_filter
2866 add_asflags $_flags $_cflags
2867 set_ccvars AS
2868
2869 probe_cc ld "$ld"
2870 ldflags_filter=$_flags_filter
2871 add_ldflags $_flags $_ldflags
2872 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2873 LD_O=${_ld_o-$LD_O}
2874 LD_LIB=${_ld_lib-$LD_LIB}
2875 LD_PATH=${_ld_path-$LD_PATH}
2876
2877 probe_cc hostld "$host_ld"
2878 host_ldflags_filter=$_flags_filter
2879 add_host_ldflags $_flags $_ldflags
2880 HOSTLD_O=${_ld_o-$HOSTLD_O}
2881
2882 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2883 probe_cc depcc "$dep_cc"
2884 CCDEP=${_DEPCMD:-$DEPCMD}
2885 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2886 DEPCCFLAGS=$_flags
2887 fi
2888
2889 if $ar 2>&1 | grep -q Microsoft; then
2890 arflags="-nologo"
2891 ar_o='-out:$@'
2892 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2893 arflags="rq"
2894 ar_o='$@'
2895 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2896 arflags='-Xany -r -c'
2897 ar_o='$@'
2898 else
2899 arflags="rc"
2900 ar_o='$@'
2901 fi
2902
2903 add_cflags $extra_cflags
2904 add_asflags $extra_cflags
2905
2906 if test -n "$sysroot"; then
2907 case "$cc_type" in
2908 gcc|llvm_gcc|clang)
2909 add_cppflags --sysroot="$sysroot"
2910 add_ldflags --sysroot="$sysroot"
2911 ;;
2912 tms470)
2913 add_cppflags -I"$sysinclude"
2914 add_ldflags --sysroot="$sysroot"
2915 ;;
2916 esac
2917 fi
2918
2919 if test "$cpu" = host; then
2920 enabled cross_compile &&
2921 die "--cpu=host makes no sense when cross-compiling."
2922
2923 case "$cc_type" in
2924 gcc|llvm_gcc)
2925 check_native(){
2926 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2927 sed -n "/cc1.*$1=/{
2928 s/.*$1=\\([^ ]*\\).*/\\1/
2929 p
2930 q
2931 }" $TMPE
2932 }
2933 cpu=$(check_native -march || check_native -mcpu)
2934 ;;
2935 esac
2936
2937 test "${cpu:-host}" = host &&
2938 die "--cpu=host not supported with compiler $cc"
2939 fi
2940
2941 # Deal with common $arch aliases
2942 case "$arch" in
2943 aarch64|arm64)
2944 arch="aarch64"
2945 ;;
2946 arm*)
2947 arch="arm"
2948 ;;
2949 mips*|IP*)
2950 arch="mips"
2951 ;;
2952 parisc*|hppa*)
2953 arch="parisc"
2954 ;;
2955 "Power Macintosh"|ppc*|powerpc*)
2956 arch="ppc"
2957 ;;
2958 s390|s390x)
2959 arch="s390"
2960 ;;
2961 sh4|sh)
2962 arch="sh4"
2963 ;;
2964 sun4u|sparc*)
2965 arch="sparc"
2966 ;;
2967 tilegx|tile-gx)
2968 arch="tilegx"
2969 ;;
2970 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2971 arch="x86"
2972 ;;
2973 esac
2974
2975 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2976 enable $arch
2977
2978 # Add processor-specific flags
2979 if enabled aarch64; then
2980
2981 case $cpu in
2982 armv*)
2983 cpuflags="-march=$cpu"
2984 ;;
2985 *)
2986 cpuflags="-mcpu=$cpu"
2987 ;;
2988 esac
2989
2990 elif enabled alpha; then
2991
2992 cpuflags="-mcpu=$cpu"
2993
2994 elif enabled arm; then
2995
2996 check_arm_arch() {
2997 check_cpp_condition stddef.h \
2998 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2999 $cpuflags
3000 }
3001
3002 probe_arm_arch() {
3003 if check_arm_arch 4; then echo armv4;
3004 elif check_arm_arch 4T; then echo armv4t;
3005 elif check_arm_arch 5; then echo armv5;
3006 elif check_arm_arch 5E; then echo armv5e;
3007 elif check_arm_arch 5T; then echo armv5t;
3008 elif check_arm_arch 5TE; then echo armv5te;
3009 elif check_arm_arch 5TEJ; then echo armv5te;
3010 elif check_arm_arch 6; then echo armv6;
3011 elif check_arm_arch 6J; then echo armv6j;
3012 elif check_arm_arch 6K; then echo armv6k;
3013 elif check_arm_arch 6Z; then echo armv6z;
3014 elif check_arm_arch 6ZK; then echo armv6zk;
3015 elif check_arm_arch 6T2; then echo armv6t2;
3016 elif check_arm_arch 7; then echo armv7;
3017 elif check_arm_arch 7A 7_A; then echo armv7-a;
3018 elif check_arm_arch 7R 7_R; then echo armv7-r;
3019 elif check_arm_arch 7M 7_M; then echo armv7-m;
3020 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3021 elif check_arm_arch 8A 8_A; then echo armv8-a;
3022 fi
3023 }
3024
3025 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3026
3027 case $cpu in
3028 armv*)
3029 cpuflags="-march=$cpu"
3030 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3031 ;;
3032 *)
3033 cpuflags="-mcpu=$cpu"
3034 case $cpu in
3035 cortex-a*) subarch=armv7a ;;
3036 cortex-r*) subarch=armv7r ;;
3037 cortex-m*) enable thumb; subarch=armv7m ;;
3038 arm11*) subarch=armv6 ;;
3039 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3040 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3041 *) subarch=$(probe_arm_arch) ;;
3042 esac
3043 ;;
3044 esac
3045
3046 case "$subarch" in
3047 armv5t*) enable fast_clz ;;
3048 armv[6-8]*) enable fast_clz fast_unaligned ;;
3049 esac
3050
3051 elif enabled avr32; then
3052
3053 case $cpu in
3054 ap7[02]0[0-2])
3055 subarch="avr32_ap"
3056 cpuflags="-mpart=$cpu"
3057 ;;
3058 ap)
3059 subarch="avr32_ap"
3060 cpuflags="-march=$cpu"
3061 ;;
3062 uc3[ab]*)
3063 subarch="avr32_uc"
3064 cpuflags="-mcpu=$cpu"
3065 ;;
3066 uc)
3067 subarch="avr32_uc"
3068 cpuflags="-march=$cpu"
3069 ;;
3070 esac
3071
3072 elif enabled bfin; then
3073
3074 cpuflags="-mcpu=$cpu"
3075
3076 elif enabled mips; then
3077
3078 cpuflags="-march=$cpu"
3079
3080 elif enabled ppc; then
3081
3082 case $(tolower $cpu) in
3083 601|ppc601|powerpc601)
3084 cpuflags="-mcpu=601"
3085 disable altivec
3086 ;;
3087 603*|ppc603*|powerpc603*)
3088 cpuflags="-mcpu=603"
3089 disable altivec
3090 ;;
3091 604*|ppc604*|powerpc604*)
3092 cpuflags="-mcpu=604"
3093 disable altivec
3094 ;;
3095 g3|75*|ppc75*|powerpc75*)
3096 cpuflags="-mcpu=750"
3097 disable altivec
3098 ;;
3099 g4|745*|ppc745*|powerpc745*)
3100 cpuflags="-mcpu=7450"
3101 ;;
3102 74*|ppc74*|powerpc74*)
3103 cpuflags="-mcpu=7400"
3104 ;;
3105 g5|970|ppc970|powerpc970)
3106 cpuflags="-mcpu=970"
3107 ;;
3108 power[3-7]*)
3109 cpuflags="-mcpu=$cpu"
3110 ;;
3111 cell)
3112 cpuflags="-mcpu=cell"
3113 enable ldbrx
3114 ;;
3115 e500mc)
3116 cpuflags="-mcpu=e500mc"
3117 disable altivec
3118 ;;
3119 e500v2)
3120 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3121 disable altivec
3122 ;;
3123 e500)
3124 cpuflags="-mcpu=8540 -mhard-float"
3125 disable altivec
3126 ;;
3127 esac
3128
3129 elif enabled sparc; then
3130
3131 case $cpu in
3132 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3133 cpuflags="-mcpu=$cpu"
3134 disable vis
3135 ;;
3136 ultrasparc*|niagara[234])
3137 cpuflags="-mcpu=$cpu"
3138 ;;
3139 esac
3140
3141 elif enabled x86; then
3142
3143 case $cpu in
3144 i[345]86|pentium)
3145 cpuflags="-march=$cpu"
3146 disable mmx
3147 ;;
3148 # targets that do NOT support nopl and conditional mov (cmov)
3149 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3150 cpuflags="-march=$cpu"
3151 disable i686
3152 ;;
3153 # targets that do support nopl and conditional mov (cmov)
3154 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3155 cpuflags="-march=$cpu"
3156 enable i686
3157 enable fast_cmov
3158 ;;
3159 # targets that do support conditional mov but on which it's slow
3160 pentium4|pentium4m|prescott|nocona)
3161 cpuflags="-march=$cpu"
3162 enable i686
3163 disable fast_cmov
3164 ;;
3165 esac
3166
3167 fi
3168
3169 if [ "$cpu" != generic ]; then
3170 add_cflags $cpuflags
3171 add_asflags $cpuflags
3172 fi
3173
3174 # compiler sanity check
3175 check_exec <<EOF
3176 int main(void){ return 0; }
3177 EOF
3178 if test "$?" != 0; then
3179 echo "$cc is unable to create an executable file."
3180 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3181 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3182 echo "Only do this if you know what cross compiling means."
3183 fi
3184 die "C compiler test failed."
3185 fi
3186
3187 add_cppflags -D_ISOC99_SOURCE
3188 check_cflags -std=c99
3189 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3190 #include <stdlib.h>
3191 EOF
3192 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3193 #include <stdlib.h>
3194 EOF
3195
3196 add_host_cppflags -D_ISOC99_SOURCE
3197 check_host_cflags -std=c99
3198 check_host_cflags -Wall
3199 check_host_cflags -O3
3200
3201 check_64bit(){
3202 arch32=$1
3203 arch64=$2
3204 expr=$3
3205 check_code cc "" "int test[2*($expr) - 1]" &&
3206 subarch=$arch64 || subarch=$arch32
3207 }
3208
3209 case "$arch" in
3210 aarch64|alpha|ia64)
3211 spic=$shared
3212 ;;
3213 mips)
3214 check_64bit mips mips64 '_MIPS_SIM > 1'
3215 spic=$shared
3216 ;;
3217 parisc)
3218 check_64bit parisc parisc64 'sizeof(void *) > 4'
3219 spic=$shared
3220 ;;
3221 ppc)
3222 check_64bit ppc ppc64 'sizeof(void *) > 4'
3223 spic=$shared
3224 ;;
3225 sparc)
3226 check_64bit sparc sparc64 'sizeof(void *) > 4'
3227 spic=$shared
3228 ;;
3229 x86)
3230 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3231 if test "$subarch" = "x86_64"; then
3232 spic=$shared
3233 fi
3234 ;;
3235 esac
3236
3237 enable $subarch
3238 enabled spic && enable_weak pic
3239
3240 # OS specific
3241 case $target_os in
3242 aix)
3243 SHFLAGS=-shared
3244 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3245 enabled shared && add_ldflags -Wl,-brtl
3246 ;;
3247 haiku)
3248 prefix_default="/boot/common"
3249 network_extralibs="-lnetwork"
3250 host_libs=
3251 ;;
3252 sunos)
3253 SHFLAGS='-shared -Wl,-h,$$(@F)'
3254 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3255 network_extralibs="-lsocket -lnsl"
3256 # When using suncc to build, the Solaris linker will mark
3257 # an executable with each instruction set encountered by
3258 # the Solaris assembler. As our libraries contain their own
3259 # guards for processor-specific code, instead suppress
3260 # generation of the HWCAPS ELF section on Solaris x86 only.
3261 enabled_all suncc x86 &&
3262 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3263 add_ldflags -Wl,-M,mapfile
3264 nm_default='nm -P -g'
3265 ;;
3266 netbsd)
3267 disable symver
3268 oss_indev_extralibs="-lossaudio"
3269 oss_outdev_extralibs="-lossaudio"
3270 ;;
3271 openbsd|bitrig)
3272 disable symver
3273 SHFLAGS='-shared'
3274 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3275 SLIB_INSTALL_LINKS=
3276 oss_indev_extralibs="-lossaudio"
3277 oss_outdev_extralibs="-lossaudio"
3278 ;;
3279 dragonfly)
3280 disable symver
3281 ;;
3282 freebsd)
3283 ;;
3284 bsd/os)
3285 add_extralibs -lpoll -lgnugetopt
3286 ;;
3287 darwin)
3288 gas="gas-preprocessor.pl $cc"
3289 enabled ppc && add_asflags -force_cpusubtype_ALL
3290 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3291 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3292 add_ldflags -Wl,-dynamic,-search_paths_first
3293 SLIBSUF=".dylib"
3294 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3295 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3296 objformat="macho"
3297 enabled x86_64 && objformat="macho64"
3298 enabled_any pic shared ||
3299 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3300 ;;
3301 mingw32*)
3302 if test $target_os = "mingw32ce"; then
3303 disable network
3304 else
3305 target_os=mingw32
3306 fi
3307 LIBTARGET=i386
3308 if enabled x86_64; then
3309 LIBTARGET="i386:x86-64"
3310 elif enabled arm; then
3311 LIBTARGET=arm-wince
3312 fi
3313 check_ldflags -Wl,--nxcompat
3314 check_ldflags -Wl,--dynamicbase
3315 shlibdir_default="$bindir_default"
3316 SLIBPREF=""
3317 SLIBSUF=".dll"
3318 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3319 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3320 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3321 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3322 SLIB_INSTALL_LINKS=
3323 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3324 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3325 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3326 objformat="win32"
3327 dlltool="${cross_prefix}dlltool"
3328 ranlib=:
3329 enable dos_paths
3330 ;;
3331 win32|win64)
3332 disable symver
3333 if enabled shared; then
3334 # Link to the import library instead of the normal static library
3335 # for shared libs.
3336 LD_LIB='%.lib'
3337 # Cannot build both shared and static libs with MSVC or icl.
3338 disable static
3339 fi
3340 shlibdir_default="$bindir_default"
3341 SLIBPREF=""
3342 SLIBSUF=".dll"
3343 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3344 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3345 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3346 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3347 SLIB_INSTALL_LINKS=
3348 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3349 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3350 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3351 objformat="win32"
3352 ranlib=:
3353 enable dos_paths
3354 ;;
3355 cygwin*)
3356 target_os=cygwin
3357 shlibdir_default="$bindir_default"
3358 SLIBPREF="cyg"
3359 SLIBSUF=".dll"
3360 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3361 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3362 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3363 SLIB_INSTALL_LINKS=
3364 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3365 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3366 objformat="win32"
3367 enable dos_paths
3368 ;;
3369 *-dos|freedos|opendos)
3370 network_extralibs="-lsocket"
3371 objformat="coff"
3372 enable dos_paths
3373 add_cppflags -U__STRICT_ANSI__
3374 ;;
3375 linux)
3376 enable dv1394
3377 ;;
3378 irix*)
3379 target_os=irix
3380 ranlib="echo ignoring ranlib"
3381 ;;
3382 os/2*)
3383 ln_s="cp -f"
3384 objformat="aout"
3385 add_cppflags -D_GNU_SOURCE
3386 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3387 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3388 LIBSUF="_s.a"
3389 SLIBPREF=""
3390 SLIBSUF=".dll"
3391 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3392 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3393 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3394 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3395 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3396 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3397 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3398 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3399 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3400 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3401 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3402 enable dos_paths
3403 ;;
3404 gnu/kfreebsd)
3405 add_cppflags -D_BSD_SOURCE
3406 ;;
3407 gnu)
3408 ;;
3409 qnx)
3410 add_cppflags -D_QNX_SOURCE
3411 network_extralibs="-lsocket"
3412 ;;
3413 symbian)
3414 SLIBSUF=".dll"
3415 enable dos_paths
3416 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3417 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3418 add_ldflags -Wl,--target1-abs,--no-undefined \
3419 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3420 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3421 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3422 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3423 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3424 ;;
3425 osf1)
3426 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3427 ;;
3428 minix)
3429 ;;
3430 plan9)
3431 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3432 -D_REENTRANT_SOURCE \
3433 -D_RESEARCH_SOURCE \
3434 -DFD_SETSIZE=96 \
3435 -DHAVE_SOCK_OPTS
3436 add_compat strtod.o strtod=avpriv_strtod
3437 network_extralibs='-lbsd'
3438 exeobjs=compat/plan9/main.o
3439 disable avserver
3440 cp_f='cp'
3441 ;;
3442 none)
3443 ;;
3444 *)
3445 die "Unknown OS '$target_os'."
3446 ;;
3447 esac
3448
3449 # determine libc flavour
3450
3451 probe_libc(){
3452 pfx=$1
3453 pfx_no_=${pfx%_}
3454 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3455 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3456 eval ${pfx}libc_type=uclibc
3457 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3458 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3459 eval ${pfx}libc_type=glibc
3460 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3461 # MinGW headers can be installed on Cygwin, so check for newlib first.
3462 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3463 eval ${pfx}libc_type=newlib
3464 add_${pfx}cppflags -U__STRICT_ANSI__
3465 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3466 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3467 eval ${pfx}libc_type=mingw64
3468 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3469 eval test \$${pfx_no_}cc_type = "gcc" &&
3470 add_${pfx}cppflags -D__printf__=__gnu_printf__
3471 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3472 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3473 eval ${pfx}libc_type=mingw32
3474 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3475 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3476 die "ERROR: MinGW32 runtime version must be >= 3.15."
3477 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3478 eval test \$${pfx_no_}cc_type = "gcc" &&
3479 add_${pfx}cppflags -D__printf__=__gnu_printf__
3480 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3481 eval ${pfx}libc_type=msvcrt
3482 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3483 # 0x601 by default unless something else is set by the user.
3484 # This can easily lead to us detecting functions only present
3485 # in such new versions and producing binaries requiring windows 7.0.
3486 # Therefore explicitly set the default to XP unless the user has
3487 # set something else on the command line.
3488 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3489 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3490 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3491 eval ${pfx}libc_type=klibc
3492 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3493 eval ${pfx}libc_type=bionic
3494 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3495 eval ${pfx}libc_type=solaris
3496 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3497 fi
3498 }
3499
3500 probe_libc
3501 test -n "$libc_type" && enable libc_$libc_type
3502 probe_libc host_
3503 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3504
3505 case $libc_type in
3506 bionic)
3507 add_compat strtod.o strtod=avpriv_strtod
3508 ;;
3509 msvcrt)
3510 add_compat strtod.o strtod=avpriv_strtod
3511 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3512 _snprintf=avpriv_snprintf \
3513 vsnprintf=avpriv_vsnprintf
3514 ;;
3515 esac
3516
3517 # hacks for compiler/libc/os combinations
3518
3519 if enabled_all tms470 libc_glibc; then
3520 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3521 add_cppflags -D__USER_LABEL_PREFIX__=
3522 add_cppflags -D__builtin_memset=memset
3523 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3524 add_cflags -pds=48 # incompatible redefinition of macro
3525 fi
3526
3527 if enabled_all ccc libc_glibc; then
3528 add_ldflags -Wl,-z,now # calls to libots crash without this
3529 fi
3530
3531 esc(){
3532 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3533 }
3534
3535 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3536
3537 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3538
3539 set_default $PATHS_LIST
3540 set_default nm
3541
3542 # we need to build at least one lib type
3543 if ! enabled_any static shared; then
3544 cat <<EOF
3545 At least one library type must be built.
3546 Specify --enable-static to build the static libraries or --enable-shared to
3547 build the shared libraries as well. To only build the shared libraries specify
3548 --disable-static in addition to --enable-shared.
3549 EOF
3550 exit 1;
3551 fi
3552
3553 die_license_disabled() {
3554 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3555 }
3556
3557 die_license_disabled gpl libcdio
3558 die_license_disabled gpl libx264
3559 die_license_disabled gpl libx265
3560 die_license_disabled gpl libxavs
3561 die_license_disabled gpl libxvid
3562 die_license_disabled gpl x11grab
3563
3564 die_license_disabled nonfree libfaac
3565 die_license_disabled nonfree libfdk_aac
3566 die_license_disabled nonfree openssl
3567
3568 die_license_disabled version3 libopencore_amrnb
3569 die_license_disabled version3 libopencore_amrwb
3570 die_license_disabled version3 libvo_aacenc
3571 die_license_disabled version3 libvo_amrwbenc
3572
3573 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3574
3575 disabled optimizations || check_cflags -fomit-frame-pointer
3576
3577 enable_weak_pic() {
3578 disabled pic && return
3579 enable pic
3580 add_cppflags -DPIC
3581 case "$target_os" in
3582 mingw*|cygwin*)
3583 ;;
3584 *)
3585 add_cflags -fPIC
3586 ;;
3587 esac
3588 add_asflags -fPIC
3589 }
3590
3591 enabled pic && enable_weak_pic
3592
3593 check_cc <<EOF || die "Symbol mangling check failed."
3594 int ff_extern;
3595 EOF
3596 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3597 extern_prefix=${sym%%ff_extern*}
3598
3599 check_cc <<EOF && enable_weak inline_asm
3600 void foo(void) { __asm__ volatile ("" ::); }
3601 EOF
3602
3603 _restrict=
3604 for restrict_keyword in restrict __restrict__ __restrict; do
3605 check_cc <<EOF && _restrict=$restrict_keyword && break
3606 void foo(char * $restrict_keyword p);
3607 EOF
3608 done
3609
3610 check_cc <<EOF && enable pragma_deprecated
3611 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3612 EOF
3613
3614 check_cc <<EOF && enable attribute_packed
3615 struct { int x; } __attribute__((packed)) x;
3616 EOF
3617
3618 check_cc <<EOF && enable attribute_may_alias
3619 union { int x; } __attribute__((may_alias)) x;
3620 EOF
3621
3622 check_cc <<EOF || die "endian test failed"
3623 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3624 EOF
3625 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3626
3627 check_inline_asm inline_asm_labels '"1:\n"'
3628
3629 if enabled aarch64; then
3630 # internal assembler in clang 3.3 does not support this instruction
3631 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3632 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3633
3634 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3635
3636 elif enabled alpha; then
3637
3638 check_cflags -mieee
3639
3640 elif enabled arm; then
3641
3642 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3643 enabled thumb && check_cflags -mthumb || check_cflags -marm
3644 nogas=die
3645
3646 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3647 enable vfp_args
3648 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3649 case "${cross_prefix:-$cc}" in
3650 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3651 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3652 __asm__ (".eabi_attribute 28, 1");
3653 int main(void) { return 0; }
3654 EOF
3655 esac
3656 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3657 fi
3658
3659 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3660 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3661 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3662 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3663 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3664 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3665
3666 [ $target_os = linux ] ||
3667 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3668 $ARCH_EXT_LIST_ARM
3669
3670 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3671
3672 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3673
3674 elif enabled mips; then
3675
3676 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3677
3678 elif enabled parisc; then
3679
3680 if enabled gcc; then
3681 case $($cc -dumpversion) in
3682 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3683 esac
3684 fi
3685
3686 elif enabled ppc; then
3687
3688 enable local_aligned_8 local_aligned_16
3689
3690 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3691 check_inline_asm ibm_asm '"add 0, 0, 0"'
3692 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3693 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3694
3695 # AltiVec flags: The FSF version of GCC differs from the Apple version
3696 if enabled altivec; then
3697 nogas