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[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_SIMD='
1253 amd3dnow
1254 amd3dnowext
1255 avx
1256 avx2
1257 xop
1258 fma3
1259 fma4
1260 mmx
1261 mmxext
1262 sse
1263 sse2
1264 sse3
1265 sse4
1266 sse42
1267 ssse3
1268 '
1269
1270 ARCH_EXT_LIST_X86="
1271 $ARCH_EXT_LIST_X86_SIMD
1272 cpunop
1273 i686
1274 "
1275
1276 ARCH_EXT_LIST="
1277 $ARCH_EXT_LIST_ARM
1278 $ARCH_EXT_LIST_X86
1279 altivec
1280 ppc4xx
1281 vis
1282 "
1283
1284 HAVE_LIST_CMDLINE='
1285 inline_asm
1286 symver
1287 yasm
1288 '
1289
1290 HAVE_LIST_PUB='
1291 bigendian
1292 fast_unaligned
1293 '
1294
1295 MATH_FUNCS="
1296 atanf
1297 atan2f
1298 cbrtf
1299 cosf
1300 exp2
1301 exp2f
1302 expf
1303 isinf
1304 isnan
1305 ldexpf
1306 llrint
1307 llrintf
1308 log2
1309 log2f
1310 log10f
1311 lrint
1312 lrintf
1313 powf
1314 rint
1315 round
1316 roundf
1317 sinf
1318 trunc
1319 truncf
1320 "
1321
1322 HAVE_LIST="
1323 $ARCH_EXT_LIST
1324 $(add_suffix _external $ARCH_EXT_LIST)
1325 $(add_suffix _inline $ARCH_EXT_LIST)
1326 $HAVE_LIST_CMDLINE
1327 $HAVE_LIST_PUB
1328 $THREADS_LIST
1329 $ATOMICS_LIST
1330 $MATH_FUNCS
1331 aligned_malloc
1332 aligned_stack
1333 alsa_asoundlib_h
1334 altivec_h
1335 arpa_inet_h
1336 asm_mod_q
1337 atomic_cas_ptr
1338 atomics_native
1339 attribute_may_alias
1340 attribute_packed
1341 cdio_paranoia_h
1342 cdio_paranoia_paranoia_h
1343 closesocket
1344 CommandLineToArgvW
1345 CryptGenRandom
1346 dcbzl
1347 dev_bktr_ioctl_bt848_h
1348 dev_bktr_ioctl_meteor_h
1349 dev_ic_bt8xx_h
1350 dev_video_bktr_ioctl_bt848_h
1351 dev_video_meteor_ioctl_meteor_h
1352 direct_h
1353 dlfcn_h
1354 dlopen
1355 dos_paths
1356 dxva_h
1357 ebp_available
1358 ebx_available
1359 fast_64bit
1360 fast_clz
1361 fast_cmov
1362 fcntl
1363 fork
1364 getaddrinfo
1365 gethrtime
1366 getopt
1367 GetProcessAffinityMask
1368 GetProcessMemoryInfo
1369 GetProcessTimes
1370 GetSystemTimeAsFileTime
1371 getrusage
1372 getservbyport
1373 gettimeofday
1374 gnu_as
1375 gsm_h
1376 ibm_asm
1377 inet_aton
1378 io_h
1379 inline_asm_labels
1380 isatty
1381 jack_port_get_latency_range
1382 ldbrx
1383 libc_msvcrt
1384 libdc1394_1
1385 libdc1394_2
1386 local_aligned_16
1387 local_aligned_8
1388 localtime_r
1389 loongson
1390 mach_absolute_time
1391 mach_mach_time_h
1392 machine_ioctl_bt848_h
1393 machine_ioctl_meteor_h
1394 machine_rw_barrier
1395 malloc_h
1396 MapViewOfFile
1397 memalign
1398 MemoryBarrier
1399 mkstemp
1400 mm_empty
1401 mmap
1402 mprotect
1403 nanosleep
1404 poll_h
1405 posix_memalign
1406 pragma_deprecated
1407 rdtsc
1408 sched_getaffinity
1409 sdl
1410 SetConsoleTextAttribute
1411 setmode
1412 setrlimit
1413 Sleep
1414 sndio_h
1415 socklen_t
1416 soundcard_h
1417 strerror_r
1418 strptime
1419 struct_addrinfo
1420 struct_group_source_req
1421 struct_ip_mreq_source
1422 struct_ipv6_mreq
1423 struct_pollfd
1424 struct_rusage_ru_maxrss
1425 struct_sockaddr_in6
1426 struct_sockaddr_sa_len
1427 struct_sockaddr_storage
1428 struct_v4l2_frmivalenum_discrete
1429 symver_asm_label
1430 symver_gnu_asm
1431 sync_val_compare_and_swap
1432 sysconf
1433 sysctl
1434 sys_mman_h
1435 sys_param_h
1436 sys_resource_h
1437 sys_select_h
1438 sys_soundcard_h
1439 sys_time_h
1440 sys_un_h
1441 sys_videoio_h
1442 threads
1443 unistd_h
1444 usleep
1445 vdpau_x11
1446 vfp_args
1447 VirtualAlloc
1448 windows_h
1449 winsock2_h
1450 xform_asm
1451 xlib
1452 xmm_clobbers
1453 "
1454
1455 # options emitted with CONFIG_ prefix but not available on the command line
1456 CONFIG_EXTRA="
1457 aandcttables
1458 ac3dsp
1459 audio_frame_queue
1460 dsputil
1461 gcrypt
1462 golomb
1463 gplv3
1464 h263dsp
1465 h264chroma
1466 h264dsp
1467 h264pred
1468 h264qpel
1469 hpeldsp
1470 huffman
1471 intrax8
1472 lgplv3
1473 lpc
1474 mpegaudio
1475 mpegaudiodsp
1476 mpegvideo
1477 mpegvideoenc
1478 nettle
1479 rangecoder
1480 riffdec
1481 riffenc
1482 rtpdec
1483 rtpenc_chain
1484 sinewin
1485 videodsp
1486 vp3dsp
1487 "
1488
1489 CMDLINE_SELECT="
1490 $ARCH_EXT_LIST
1491 $CONFIG_LIST
1492 $HAVE_LIST_CMDLINE
1493 $THREADS_LIST
1494 asm
1495 cross_compile
1496 debug
1497 extra_warnings
1498 logging
1499 lto
1500 optimizations
1501 "
1502
1503 PATHS_LIST='
1504 bindir
1505 datadir
1506 docdir
1507 incdir
1508 libdir
1509 mandir
1510 prefix
1511 shlibdir
1512 '
1513
1514 CMDLINE_SET="
1515 $PATHS_LIST
1516 ar
1517 arch
1518 as
1519 build_suffix
1520 cc
1521 cpu
1522 cross_prefix
1523 dep_cc
1524 extra_version
1525 host_cc
1526 host_cflags
1527 host_ld
1528 host_ldflags
1529 host_libs
1530 host_os
1531 ld
1532 logfile
1533 malloc_prefix
1534 nm
1535 optflags
1536 pkg_config
1537 random_seed
1538 samples
1539 sysinclude
1540 sysroot
1541 target_exec
1542 target_os
1543 target_path
1544 target_samples
1545 toolchain
1546 "
1547
1548 CMDLINE_APPEND="
1549 extra_cflags
1550 host_cppflags
1551 "
1552
1553 # code dependency declarations
1554
1555 # architecture extensions
1556
1557 armv5te_deps="arm"
1558 armv6_deps="arm"
1559 armv6t2_deps="arm"
1560 neon_deps_any="aarch64 arm"
1561 vfp_deps_any="aarch64 arm"
1562 vfpv3_deps="vfp"
1563
1564 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1565
1566 altivec_deps="ppc"
1567 ppc4xx_deps="ppc"
1568
1569 vis_deps="sparc"
1570
1571 cpunop_deps="i686"
1572 x86_64_select="i686"
1573 x86_64_suggest="fast_cmov"
1574
1575 amd3dnow_deps="mmx"
1576 amd3dnowext_deps="amd3dnow"
1577 i686_deps="x86"
1578 mmx_deps="x86"
1579 mmxext_deps="mmx"
1580 sse_deps="mmxext"
1581 sse2_deps="sse"
1582 sse3_deps="sse2"
1583 ssse3_deps="sse3"
1584 sse4_deps="ssse3"
1585 sse42_deps="sse4"
1586 avx_deps="sse42"
1587 xop_deps="avx"
1588 fma3_deps="avx"
1589 fma4_deps="avx"
1590 avx2_deps="avx"
1591
1592 mmx_external_deps="yasm"
1593 mmx_inline_deps="inline_asm"
1594 mmx_suggest="mmx_external mmx_inline"
1595
1596 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1597 eval dep=\$${ext}_deps
1598 eval ${ext}_external_deps='"${dep}_external"'
1599 eval ${ext}_inline_deps='"${dep}_inline"'
1600 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1601 done
1602
1603 aligned_stack_if_any="aarch64 ppc x86"
1604 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1605 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1606 fast_unaligned_if_any="aarch64 ppc x86"
1607
1608 need_memalign="altivec neon sse"
1609
1610 # system capabilities
1611 log2_deps="!libc_msvcrt"
1612
1613 symver_if_any="symver_asm_label symver_gnu_asm"
1614
1615 # threading support
1616 atomics_gcc_if="sync_val_compare_and_swap"
1617 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1618 atomics_win32_if="MemoryBarrier"
1619 atomics_native_if_any="$ATOMICS_LIST"
1620 w32threads_deps="atomics_native"
1621 threads_if_any="$THREADS_LIST"
1622
1623 # subsystems
1624 dct_select="rdft"
1625 error_resilience_select="dsputil"
1626 lpc_select="dsputil"
1627 mdct_select="fft"
1628 rdft_select="fft"
1629 mpegaudio_select="mpegaudiodsp"
1630 mpegaudiodsp_select="dct"
1631 mpegvideo_select="dsputil hpeldsp videodsp"
1632 mpegvideoenc_select="mpegvideo"
1633
1634 # decoders / encoders
1635 aac_decoder_select="mdct sinewin"
1636 aac_encoder_select="audio_frame_queue mdct sinewin"
1637 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1638 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1639 ac3_encoder_select="mdct ac3dsp dsputil"
1640 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1641 aic_decoder_select="dsputil golomb"
1642 alac_encoder_select="lpc"
1643 als_decoder_select="dsputil"
1644 amrnb_decoder_select="lsp"
1645 amrwb_decoder_select="lsp"
1646 amv_decoder_select="sp5x_decoder"
1647 ape_decoder_select="dsputil"
1648 asv1_decoder_select="dsputil"
1649 asv1_encoder_select="dsputil"
1650 asv2_decoder_select="dsputil"
1651 asv2_encoder_select="dsputil"
1652 atrac1_decoder_select="mdct sinewin"
1653 atrac3_decoder_select="mdct"
1654 atrac3p_decoder_select="mdct sinewin"
1655 bink_decoder_select="dsputil hpeldsp"
1656 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1657 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1658 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1659 cllc_decoder_select="dsputil"
1660 comfortnoise_encoder_select="lpc"
1661 cook_decoder_select="dsputil mdct sinewin"
1662 cscd_decoder_select="lzo"
1663 cscd_decoder_suggest="zlib"
1664 dca_decoder_select="mdct"
1665 dnxhd_decoder_select="dsputil"
1666 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1667 dvvideo_decoder_select="dsputil"
1668 dvvideo_encoder_select="dsputil"
1669 dxa_decoder_deps="zlib"
1670 eac3_decoder_select="ac3_decoder"
1671 eac3_encoder_select="ac3_encoder"
1672 eamad_decoder_select="aandcttables dsputil mpegvideo"
1673 eatgq_decoder_select="aandcttables dsputil"
1674 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1675 ffv1_decoder_select="dsputil golomb rangecoder"
1676 ffv1_encoder_select="dsputil rangecoder"
1677 ffvhuff_decoder_select="huffyuv_decoder"
1678 ffvhuff_encoder_select="huffyuv_encoder"
1679 fic_decoder_select="dsputil golomb"
1680 flac_decoder_select="golomb"
1681 flac_encoder_select="dsputil golomb lpc"
1682 flashsv_decoder_deps="zlib"
1683 flashsv_encoder_deps="zlib"
1684 flashsv2_decoder_deps="zlib"
1685 flv_decoder_select="h263_decoder"
1686 flv_encoder_select="h263_encoder"
1687 fourxm_decoder_select="dsputil"
1688 fraps_decoder_select="dsputil huffman"
1689 g2m_decoder_deps="zlib"
1690 g2m_decoder_select="dsputil"
1691 h261_decoder_select="error_resilience mpegvideo"
1692 h261_encoder_select="aandcttables mpegvideoenc"
1693 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1694 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1695 h263i_decoder_select="h263_decoder"
1696 h263p_encoder_select="h263_encoder"
1697 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1698 h264_decoder_suggest="error_resilience"
1699 hevc_decoder_select="dsputil golomb videodsp"
1700 huffyuv_decoder_select="dsputil"
1701 huffyuv_encoder_select="dsputil huffman"
1702 iac_decoder_select="imc_decoder"
1703 imc_decoder_select="dsputil fft mdct sinewin"
1704 indeo3_decoder_select="hpeldsp"
1705 interplay_video_decoder_select="hpeldsp"
1706 jpegls_decoder_select="golomb mjpeg_decoder"
1707 jpegls_encoder_select="golomb"
1708 jv_decoder_select="dsputil"
1709 lagarith_decoder_select="dsputil"
1710 ljpeg_encoder_select="aandcttables mpegvideoenc"
1711 loco_decoder_select="golomb"
1712 mdec_decoder_select="dsputil error_resilience mpegvideo"
1713 metasound_decoder_select="lsp mdct sinewin"
1714 mimic_decoder_select="dsputil hpeldsp"
1715 mjpeg_decoder_select="dsputil hpeldsp"
1716 mjpegb_decoder_select="mjpeg_decoder"
1717 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1718 mlp_decoder_select="dsputil mlp_parser"
1719 motionpixels_decoder_select="dsputil"
1720 mp1_decoder_select="mpegaudio"
1721 mp1float_decoder_select="mpegaudio"
1722 mp2_decoder_select="mpegaudio"
1723 mp2float_decoder_select="mpegaudio"
1724 mp3_decoder_select="mpegaudio"
1725 mp3adu_decoder_select="mpegaudio"
1726 mp3adufloat_decoder_select="mpegaudio"
1727 mp3float_decoder_select="mpegaudio"
1728 mp3on4_decoder_select="mpegaudio"
1729 mp3on4float_decoder_select="mpegaudio"
1730 mpc7_decoder_select="dsputil mpegaudiodsp"
1731 mpc8_decoder_select="dsputil mpegaudiodsp"
1732 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1733 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1734 mpeg1video_decoder_select="error_resilience mpegvideo"
1735 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1736 mpeg2video_decoder_select="error_resilience mpegvideo"
1737 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1738 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1739 mpeg4_encoder_select="h263_encoder"
1740 msmpeg4v1_decoder_select="h263_decoder"
1741 msmpeg4v2_decoder_select="h263_decoder"
1742 msmpeg4v2_encoder_select="h263_encoder"
1743 msmpeg4v3_decoder_select="h263_decoder"
1744 msmpeg4v3_encoder_select="h263_encoder"
1745 mss2_decoder_select="error_resilience vc1_decoder"
1746 mxpeg_decoder_select="mjpeg_decoder"
1747 nellymoser_decoder_select="mdct sinewin"
1748 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1749 nuv_decoder_select="dsputil lzo"
1750 png_decoder_deps="zlib"
1751 png_decoder_select="dsputil"
1752 png_encoder_deps="zlib"
1753 png_encoder_select="dsputil"
1754 prores_decoder_select="dsputil"
1755 prores_encoder_select="dsputil"
1756 qcelp_decoder_select="lsp"
1757 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1758 ra_144_encoder_select="audio_frame_queue lpc"
1759 ralf_decoder_select="golomb"
1760 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1761 rv10_encoder_select="h263_encoder"
1762 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1763 rv20_encoder_select="h263_encoder"
1764 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1765 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1766 shorten_decoder_select="golomb"
1767 sipr_decoder_select="lsp"
1768 sp5x_decoder_select="mjpeg_decoder"
1769 svq1_decoder_select="hpeldsp"
1770 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1771 svq3_decoder_select="h264_decoder hpeldsp mpegvideo"
1772 svq3_decoder_suggest="zlib"
1773 tak_decoder_select="dsputil"
1774 theora_decoder_select="vp3_decoder"
1775 tiff_decoder_suggest="zlib"
1776 tiff_encoder_suggest="zlib"
1777 thp_decoder_select="mjpeg_decoder"
1778 truehd_decoder_select="mlp_decoder"
1779 truemotion2_decoder_select="dsputil"
1780 truespeech_decoder_select="dsputil"
1781 tscc_decoder_deps="zlib"
1782 twinvq_decoder_select="mdct lsp sinewin"
1783 utvideo_decoder_select="dsputil"
1784 utvideo_encoder_select="dsputil huffman"
1785 vble_decoder_select="dsputil"
1786 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1787 vc1image_decoder_select="vc1_decoder"
1788 vorbis_decoder_select="mdct"
1789 vorbis_encoder_select="mdct"
1790 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1791 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1792 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1793 vp6a_decoder_select="vp6_decoder"
1794 vp6f_decoder_select="vp6_decoder"
1795 vp8_decoder_select="h264pred videodsp"
1796 vp9_decoder_select="videodsp"
1797 webp_decoder_select="vp8_decoder"
1798 wmapro_decoder_select="mdct sinewin"
1799 wmav1_decoder_select="mdct sinewin"
1800 wmav1_encoder_select="mdct sinewin"
1801 wmav2_decoder_select="mdct sinewin"
1802 wmav2_encoder_select="mdct sinewin"
1803 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1804 wmv1_decoder_select="h263_decoder"
1805 wmv1_encoder_select="h263_encoder"
1806 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1807 wmv2_encoder_select="h263_encoder"
1808 wmv3_decoder_select="vc1_decoder"
1809 wmv3image_decoder_select="wmv3_decoder"
1810 zerocodec_decoder_deps="zlib"
1811 zlib_decoder_deps="zlib"
1812 zlib_encoder_deps="zlib"
1813 zmbv_decoder_deps="zlib"
1814 zmbv_encoder_deps="zlib"
1815
1816 # hardware accelerators
1817 dxva2_deps="dxva2api_h"
1818 vaapi_deps="va_va_h"
1819 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1820 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1821 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1822
1823 h263_vaapi_hwaccel_deps="vaapi"
1824 h263_vaapi_hwaccel_select="h263_decoder"
1825 h263_vdpau_hwaccel_deps="vdpau"
1826 h263_vdpau_hwaccel_select="h263_decoder"
1827 h264_dxva2_hwaccel_deps="dxva2"
1828 h264_dxva2_hwaccel_select="h264_decoder"
1829 h264_vaapi_hwaccel_deps="vaapi"
1830 h264_vaapi_hwaccel_select="h264_decoder"
1831 h264_vda_hwaccel_deps="vda"
1832 h264_vda_hwaccel_select="h264_decoder"
1833 h264_vdpau_hwaccel_deps="vdpau"
1834 h264_vdpau_hwaccel_select="h264_decoder"
1835 mpeg1_vdpau_hwaccel_deps="vdpau"
1836 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1837 mpeg2_dxva2_hwaccel_deps="dxva2"
1838 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1839 mpeg2_vaapi_hwaccel_deps="vaapi"
1840 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1841 mpeg2_vdpau_hwaccel_deps="vdpau"
1842 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1843 mpeg4_vaapi_hwaccel_deps="vaapi"
1844 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1845 mpeg4_vdpau_hwaccel_deps="vdpau"
1846 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1847 vc1_dxva2_hwaccel_deps="dxva2"
1848 vc1_dxva2_hwaccel_select="vc1_decoder"
1849 vc1_vaapi_hwaccel_deps="vaapi"
1850 vc1_vaapi_hwaccel_select="vc1_decoder"
1851 vc1_vdpau_hwaccel_deps="vdpau"
1852 vc1_vdpau_hwaccel_select="vc1_decoder"
1853 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1854 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1855 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1856
1857 # parsers
1858 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1859 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
1860 mpegvideo_parser_select="error_resilience mpegvideo"
1861 vc1_parser_select="mpegvideo"
1862
1863 # external libraries
1864 libfaac_encoder_deps="libfaac"
1865 libfaac_encoder_select="audio_frame_queue"
1866 libfdk_aac_decoder_deps="libfdk_aac"
1867 libfdk_aac_encoder_deps="libfdk_aac"
1868 libfdk_aac_encoder_select="audio_frame_queue"
1869 libgsm_decoder_deps="libgsm"
1870 libgsm_encoder_deps="libgsm"
1871 libgsm_ms_decoder_deps="libgsm"
1872 libgsm_ms_encoder_deps="libgsm"
1873 libilbc_decoder_deps="libilbc"
1874 libilbc_encoder_deps="libilbc"
1875 libmp3lame_encoder_deps="libmp3lame"
1876 libmp3lame_encoder_select="audio_frame_queue"
1877 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1878 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1879 libopencore_amrnb_encoder_select="audio_frame_queue"
1880 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1881 libopenjpeg_decoder_deps="libopenjpeg"
1882 libopenjpeg_encoder_deps="libopenjpeg"
1883 libopus_decoder_deps="libopus"
1884 libopus_encoder_deps="libopus"
1885 libopus_encoder_select="audio_frame_queue"
1886 libschroedinger_decoder_deps="libschroedinger"
1887 libschroedinger_encoder_deps="libschroedinger"
1888 libspeex_decoder_deps="libspeex"
1889 libspeex_encoder_deps="libspeex"
1890 libspeex_encoder_select="audio_frame_queue"
1891 libtheora_encoder_deps="libtheora"
1892 libvo_aacenc_encoder_deps="libvo_aacenc"
1893 libvo_aacenc_encoder_select="audio_frame_queue"
1894 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1895 libvorbis_encoder_deps="libvorbis"
1896 libvorbis_encoder_select="audio_frame_queue"
1897 libvpx_vp8_decoder_deps="libvpx"
1898 libvpx_vp8_encoder_deps="libvpx"
1899 libvpx_vp9_decoder_deps="libvpx"
1900 libvpx_vp9_encoder_deps="libvpx"
1901 libwavpack_encoder_deps="libwavpack"
1902 libwebp_encoder_deps="libwebp"
1903 libx264_encoder_deps="libx264"
1904 libx265_encoder_deps="libx265"
1905 libxavs_encoder_deps="libxavs"
1906 libxvid_encoder_deps="libxvid"
1907
1908 # demuxers / muxers
1909 ac3_demuxer_select="ac3_parser"
1910 asf_demuxer_select="riffdec"
1911 asf_muxer_select="riffenc"
1912 asf_stream_muxer_select="asf_muxer"
1913 avi_demuxer_select="riffdec"
1914 avi_muxer_select="riffenc"
1915 avisynth_demuxer_deps="avisynth"
1916 avisynth_demuxer_select="riffdec"
1917 caf_demuxer_select="riffdec"
1918 dirac_demuxer_select="dirac_parser"
1919 dxa_demuxer_select="riffdec"
1920 eac3_demuxer_select="ac3_parser"
1921 f4v_muxer_select="mov_muxer"
1922 flac_demuxer_select="flac_parser"
1923 hds_muxer_select="flv_muxer"
1924 hls_muxer_select="mpegts_muxer"
1925 ipod_muxer_select="mov_muxer"
1926 ismv_muxer_select="mov_muxer"
1927 matroska_audio_muxer_select="matroska_muxer"
1928 matroska_demuxer_select="riffdec"
1929 matroska_demuxer_suggest="bzlib lzo zlib"
1930 matroska_muxer_select="riffenc"
1931 mmf_muxer_select="riffenc"
1932 mov_demuxer_select="riffdec"
1933 mov_demuxer_suggest="zlib"
1934 mov_muxer_select="riffenc rtpenc_chain"
1935 mp3_demuxer_select="mpegaudio_parser"
1936 mp4_muxer_select="mov_muxer"
1937 mpegts_muxer_select="adts_muxer latm_muxer"
1938 mpegtsraw_demuxer_select="mpegts_demuxer"
1939 mxf_d10_muxer_select="mxf_muxer"
1940 nut_muxer_select="riffenc"
1941 nuv_demuxer_select="riffdec"
1942 ogg_demuxer_select="golomb"
1943 psp_muxer_select="mov_muxer"
1944 rtp_demuxer_select="sdp_demuxer"
1945 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1946 rtsp_demuxer_select="http_protocol rtpdec"
1947 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1948 sap_demuxer_select="sdp_demuxer"
1949 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1950 sdp_demuxer_select="rtpdec"
1951 smoothstreaming_muxer_select="ismv_muxer"
1952 spdif_muxer_select="aac_parser"
1953 tak_demuxer_select="tak_parser"
1954 tg2_muxer_select="mov_muxer"
1955 tgp_muxer_select="mov_muxer"
1956 w64_demuxer_select="wav_demuxer"
1957 wav_demuxer_select="riffdec"
1958 wav_muxer_select="riffenc"
1959 webm_muxer_select="riffenc"
1960 wtv_demuxer_select="riffdec"
1961 xmv_demuxer_select="riffdec"
1962 xwma_demuxer_select="riffdec"
1963
1964 # indevs / outdevs
1965 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1966 alsa_outdev_deps="alsa_asoundlib_h"
1967 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1968 dv1394_indev_deps="dv1394"
1969 dv1394_indev_select="dv_demuxer"
1970 fbdev_indev_deps="linux_fb_h"
1971 jack_indev_deps="jack_jack_h pthreads"
1972 libcdio_indev_deps="libcdio"
1973 libdc1394_indev_deps="libdc1394"
1974 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1975 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1976 pulse_indev_deps="libpulse"
1977 sndio_indev_deps="sndio_h"
1978 sndio_outdev_deps="sndio_h"
1979 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1980 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1981 vfwcap_indev_extralibs="-lavicap32"
1982 x11grab_indev_deps="x11grab XShmCreateImage"
1983
1984 # protocols
1985 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1986 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1987 ffrtmpcrypt_protocol_select="tcp_protocol"
1988 ffrtmphttp_protocol_deps="!librtmp_protocol"
1989 ffrtmphttp_protocol_select="http_protocol"
1990 gopher_protocol_select="network"
1991 httpproxy_protocol_select="tcp_protocol"
1992 http_protocol_select="tcp_protocol"
1993 https_protocol_select="tls_protocol"
1994 librtmp_protocol_deps="librtmp"
1995 librtmpe_protocol_deps="librtmp"
1996 librtmps_protocol_deps="librtmp"
1997 librtmpt_protocol_deps="librtmp"
1998 librtmpte_protocol_deps="librtmp"
1999 mmsh_protocol_select="http_protocol"
2000 mmst_protocol_select="network"
2001 rtmp_protocol_deps="!librtmp_protocol"
2002 rtmp_protocol_select="tcp_protocol"
2003 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2004 rtmps_protocol_deps="!librtmp_protocol"
2005 rtmps_protocol_select="tls_protocol"
2006 rtmpt_protocol_select="ffrtmphttp_protocol"
2007 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2008 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2009 rtp_protocol_select="udp_protocol"
2010 sctp_protocol_deps="struct_sctp_event_subscribe"
2011 sctp_protocol_select="network"
2012 srtp_protocol_select="rtp_protocol"
2013 tcp_protocol_select="network"
2014 tls_protocol_deps_any="openssl gnutls"
2015 tls_protocol_select="tcp_protocol"
2016 udp_protocol_select="network"
2017 unix_protocol_deps="sys_un_h"
2018 unix_protocol_select="network"
2019
2020 # filters
2021 blackframe_filter_deps="gpl"
2022 boxblur_filter_deps="gpl"
2023 cropdetect_filter_deps="gpl"
2024 delogo_filter_deps="gpl"
2025 drawtext_filter_deps="libfreetype"
2026 frei0r_filter_deps="frei0r dlopen"
2027 frei0r_filter_extralibs='$ldl'
2028 frei0r_src_filter_deps="frei0r dlopen"
2029 frei0r_src_filter_extralibs='$ldl'
2030 hqdn3d_filter_deps="gpl"
2031 interlace_filter_deps="gpl"
2032 resample_filter_deps="avresample"
2033 ocv_filter_deps="libopencv"
2034 scale_filter_deps="swscale"
2035
2036 # examples
2037 avcodec_example_deps="avcodec avutil"
2038 filter_audio_example_deps="avfilter avutil"
2039 metadata_example_deps="avformat avutil"
2040 output_example_deps="avcodec avformat avutil swscale"
2041 transcode_aac_example_deps="avcodec avformat avresample"
2042
2043 # libraries
2044 avcodec_deps="avutil"
2045 avdevice_deps="avutil avcodec avformat"
2046 avfilter_deps="avutil"
2047 avformat_deps="avutil avcodec"
2048 avresample_deps="avutil"
2049 swscale_deps="avutil"
2050
2051 # programs
2052 avconv_deps="avcodec avfilter avformat avresample swscale"
2053 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2054 fps_filter null_filter resample_filter scale_filter
2055 setpts_filter trim_filter"
2056 avplay_deps="avcodec avformat avresample swscale sdl"
2057 avplay_libs='$sdl_libs'
2058 avplay_select="rdft"
2059 avprobe_deps="avcodec avformat"
2060 avserver_deps="avformat fork !shared"
2061 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2062
2063 # documentation
2064 pod2man_deps="doc"
2065 texi2html_deps="doc"
2066
2067 # default parameters
2068
2069 logfile="config.log"
2070
2071 # installation paths
2072 prefix_default="/usr/local"
2073 bindir_default='${prefix}/bin'
2074 datadir_default='${prefix}/share/avconv'
2075 docdir_default='${prefix}/share/doc/libav'
2076 incdir_default='${prefix}/include'
2077 libdir_default='${prefix}/lib'
2078 mandir_default='${prefix}/share/man'
2079 shlibdir_default="$libdir_default"
2080
2081 # toolchain
2082 ar_default="ar"
2083 cc_default="gcc"
2084 host_cc_default="gcc"
2085 cp_f="cp -f"
2086 ln_s="ln -s -f"
2087 nm_default="nm -g"
2088 objformat="elf"
2089 pkg_config_default=pkg-config
2090 ranlib="ranlib"
2091 strip="strip"
2092 yasmexe="yasm"
2093
2094 nogas=":"
2095
2096 # machine
2097 arch_default=$(uname -m)
2098 cpu="generic"
2099
2100 # OS
2101 target_os_default=$(tolower $(uname -s))
2102 host_os=$target_os_default
2103
2104 # configurable options
2105 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2106
2107 enable asm
2108 enable debug
2109 enable doc
2110 enable optimizations
2111 enable safe_bitstream_reader
2112 enable static
2113 enable swscale_alpha
2114
2115 # By default, enable only those hwaccels that have no external dependencies.
2116 enable dxva2 vdpau
2117
2118 # build settings
2119 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2120 LIBPREF="lib"
2121 LIBSUF=".a"
2122 FULLNAME='$(NAME)$(BUILDSUF)'
2123 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2124 SLIBPREF="lib"
2125 SLIBSUF=".so"
2126 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2127 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2128 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2129 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2130 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2131 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2132
2133 asflags_filter=echo
2134 cflags_filter=echo
2135 ldflags_filter=echo
2136
2137 AS_C='-c'
2138 AS_O='-o $@'
2139 CC_C='-c'
2140 CC_E='-E -o $@'
2141 CC_O='-o $@'
2142 LD_O='-o $@'
2143 LD_LIB='-l%'
2144 LD_PATH='-L'
2145 HOSTCC_C='-c'
2146 HOSTCC_E='-E -o $@'
2147 HOSTCC_O='-o $@'
2148 HOSTLD_O='-o $@'
2149
2150 host_libs='-lm'
2151 host_cflags_filter=echo
2152 host_ldflags_filter=echo
2153
2154 target_path='$(CURDIR)'
2155
2156 # since the object filename is not given with the -MM flag, the compiler
2157 # is only able to print the basename, and we must add the path ourselves
2158 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2159 DEPFLAGS='-MM'
2160
2161 # find source path
2162 if test -f configure; then
2163 source_path=.
2164 else
2165 source_path=$(cd $(dirname "$0"); pwd)
2166 echo "$source_path" | grep -q '[[:blank:]]' &&
2167 die "Out of tree builds are impossible with whitespace in source path."
2168 test -e "$source_path/config.h" &&
2169 die "Out of tree builds are impossible with config.h in source dir."
2170 fi
2171
2172 for v in "$@"; do
2173 r=${v#*=}
2174 l=${v%"$r"}
2175 r=$(sh_quote "$r")
2176 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2177 done
2178
2179 find_things(){
2180 thing=$1
2181 pattern=$2
2182 file=$source_path/$3
2183 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2184 }
2185
2186 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2187 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2188 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2189 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2190 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2191 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2192 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2193 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2194 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2195 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2196 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2197
2198 ALL_COMPONENTS="
2199 $BSF_LIST
2200 $DECODER_LIST
2201 $DEMUXER_LIST
2202 $ENCODER_LIST
2203 $FILTER_LIST
2204 $HWACCEL_LIST
2205 $INDEV_LIST
2206 $MUXER_LIST
2207 $OUTDEV_LIST
2208 $PARSER_LIST
2209 $PROTOCOL_LIST
2210 "
2211
2212 for n in $COMPONENT_LIST; do
2213 v=$(toupper ${n%s})_LIST
2214 eval enable \$$v
2215 eval ${n}_if_any="\$$v"
2216 done
2217
2218 enable $ARCH_EXT_LIST
2219
2220 die_unknown(){
2221 echo "Unknown option \"$1\"."
2222 echo "See $0 --help for available options."
2223 exit 1
2224 }
2225
2226 print_3_columns() {
2227 cat | tr ' ' '\n' | sort | pr -r -3 -t
2228 }
2229
2230 show_list() {
2231 suffix=_$1
2232 shift
2233 echo $* | sed s/$suffix//g | print_3_columns
2234 exit 0
2235 }
2236
2237 rand_list(){
2238 IFS=', '
2239 set -- $*
2240 unset IFS
2241 for thing; do
2242 comp=${thing%:*}
2243 prob=${thing#$comp}
2244 prob=${prob#:}
2245 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2246 echo "prob ${prob:-0.5}"
2247 printf '%s\n' $comp
2248 done
2249 }
2250
2251 do_random(){
2252 action=$1
2253 shift
2254 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2255 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2256 }
2257
2258 for opt do
2259 optval="${opt#*=}"
2260 case "$opt" in
2261 --extra-ldflags=*)
2262 add_ldflags $optval
2263 ;;
2264 --extra-libs=*)
2265 add_extralibs $optval
2266 ;;
2267 --disable-devices)
2268 disable $INDEV_LIST $OUTDEV_LIST
2269 ;;
2270 --enable-debug=*)
2271 debuglevel="$optval"
2272 ;;
2273 --disable-programs)
2274 disable $PROGRAM_LIST
2275 ;;
2276 --disable-everything)
2277 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2278 ;;
2279 --disable-all)
2280 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2281 disable $LIBRARY_LIST $PROGRAM_LIST doc
2282 ;;
2283 --enable-random|--disable-random)
2284 action=${opt%%-random}
2285 do_random ${action#--} $COMPONENT_LIST
2286 ;;
2287 --enable-random=*|--disable-random=*)
2288 action=${opt%%-random=*}
2289 do_random ${action#--} $optval
2290 ;;
2291 --enable-*=*|--disable-*=*)
2292 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2293 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2294 eval list=\$$(toupper $thing)_LIST
2295 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2296 $action $(filter "$name" $list)
2297 ;;
2298 --enable-?*|--disable-?*)
2299 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2300 if is_in $option $COMPONENT_LIST; then
2301 test $action = disable && action=unset
2302 eval $action \$$(toupper ${option%s})_LIST
2303 elif is_in $option $CMDLINE_SELECT; then
2304 $action $option
2305 else
2306 die_unknown $opt
2307 fi
2308 ;;
2309 --list-*)
2310 NAME="${opt#--list-}"
2311 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2312 NAME=${NAME%s}
2313 eval show_list $NAME \$$(toupper $NAME)_LIST
2314 ;;
2315 --help|-h) show_help
2316 ;;
2317 *)
2318 optname="${opt%%=*}"
2319 optname="${optname#--}"
2320 optname=$(echo "$optname" | sed 's/-/_/g')
2321 if is_in $optname $CMDLINE_SET; then
2322 eval $optname='$optval'
2323 elif is_in $optname $CMDLINE_APPEND; then
2324 append $optname "$optval"
2325 else
2326 die_unknown $opt
2327 fi
2328 ;;
2329 esac
2330 done
2331
2332 disabled logging && logfile=/dev/null
2333
2334 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2335 set >> $logfile
2336
2337 test -n "$cross_prefix" && enable cross_compile
2338
2339 if enabled cross_compile; then
2340 test -n "$arch" && test -n "$target_os" ||
2341 die "Must specify target arch and OS when cross-compiling"
2342 fi
2343
2344 ar_default="${cross_prefix}${ar_default}"
2345 cc_default="${cross_prefix}${cc_default}"
2346 nm_default="${cross_prefix}${nm_default}"
2347 pkg_config_default="${cross_prefix}${pkg_config_default}"
2348 ranlib="${cross_prefix}${ranlib}"
2349 strip="${cross_prefix}${strip}"
2350
2351 sysinclude_default="${sysroot}/usr/include"
2352
2353 case "$toolchain" in
2354 clang-asan)
2355 cc_default="clang"
2356 add_cflags -fsanitize=address
2357 add_ldflags -fsanitize=address
2358 ;;
2359 clang-tsan)
2360 cc_default="clang"
2361 add_cflags -fsanitize=thread -pie
2362 add_ldflags -fsanitize=thread -pie
2363 ;;
2364 clang-usan)
2365 cc_default="clang"
2366 add_cflags -fsanitize=undefined
2367 add_ldflags -fsanitize=undefined
2368 ;;
2369 gcc-asan)
2370 cc_default="gcc"
2371 add_cflags -fsanitize=address
2372 add_ldflags -fsanitize=address
2373 ;;
2374 gcc-tsan)
2375 cc_default="gcc"
2376 add_cflags -fsanitize=thread -pie -fPIC
2377 add_ldflags -fsanitize=thread -pie -fPIC
2378 ;;
2379 gcc-usan)
2380 cc_default="gcc"
2381 add_cflags -fsanitize=undefined
2382 add_ldflags -fsanitize=undefined
2383 ;;
2384 valgrind-massif)
2385 target_exec_default="valgrind"
2386 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2387 ;;
2388 valgrind-memcheck)
2389 target_exec_default="valgrind"
2390 target_exec_args="--track-origins=yes --leak-check=full"
2391 ;;
2392 msvc)
2393 # Check whether the current MSVC version needs the C99 converter.
2394 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2395 # support enough of C99 to build libav. Default to the new
2396 # behaviour if the regexp was unable to match anything, since this
2397 # successfully parses the version number of existing supported
2398 # versions that require the converter (MSVC 2010 and 2012).
2399 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2400 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2401 cc_default="cl"
2402 else
2403 cc_default="c99wrap cl"
2404 fi
2405 ld_default="link"
2406 nm_default="dumpbin -symbols"
2407 ar_default="lib"
2408 target_os_default="win32"
2409 # Use a relative path for TMPDIR. This makes sure all the
2410 # ffconf temp files are written with a relative path, avoiding
2411 # issues with msys/win32 path conversion for MSVC parameters
2412 # such as -Fo<file> or -out:<file>.
2413 TMPDIR=.
2414 ;;
2415 icl)
2416 cc_default="icl"
2417 ld_default="xilink"
2418 nm_default="dumpbin -symbols"
2419 ar_default="xilib"
2420 target_os_default="win32"
2421 TMPDIR=.
2422 ;;
2423 gcov)
2424 add_cflags -fprofile-arcs -ftest-coverage
2425 add_ldflags -fprofile-arcs -ftest-coverage
2426 ;;
2427 hardened)
2428 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2429 add_ldflags -Wl,-z,relro -Wl,-z,now
2430 ;;
2431 ?*)
2432 die "Unknown toolchain $toolchain"
2433 ;;
2434 esac
2435
2436 set_default arch cc pkg_config sysinclude target_exec target_os
2437 enabled cross_compile || host_cc_default=$cc
2438 set_default host_cc
2439
2440 if ! $pkg_config --version >/dev/null 2>&1; then
2441 warn "$pkg_config not found, library detection may fail."
2442 pkg_config=false
2443 fi
2444
2445 exesuf() {
2446 case $1 in
2447 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2448 esac
2449 }
2450
2451 EXESUF=$(exesuf $target_os)
2452 HOSTEXESUF=$(exesuf $host_os)
2453
2454 # set temporary file name
2455 : ${TMPDIR:=$TEMPDIR}
2456 : ${TMPDIR:=$TMP}
2457 : ${TMPDIR:=/tmp}
2458
2459 if ! check_cmd mktemp -u XXXXXX; then
2460 # simple replacement for missing mktemp
2461 # NOT SAFE FOR GENERAL USE
2462 mktemp(){
2463 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2464 }
2465 fi
2466
2467 tmpfile(){
2468 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2469 (set -C; exec > $tmp) 2>/dev/null ||
2470 die "Unable to create temporary file in $TMPDIR."
2471 append TMPFILES $tmp
2472 eval $1=$tmp
2473 }
2474
2475 trap 'rm -f -- $TMPFILES' EXIT
2476
2477 tmpfile TMPASM .asm
2478 tmpfile TMPC .c
2479 tmpfile TMPE $EXESUF
2480 tmpfile TMPH .h
2481 tmpfile TMPO .o
2482 tmpfile TMPS .S
2483 tmpfile TMPSH .sh
2484 tmpfile TMPV .ver
2485
2486 unset -f mktemp
2487
2488 chmod +x $TMPE
2489
2490 # make sure we can execute files in $TMPDIR
2491 cat > $TMPSH 2>> $logfile <<EOF
2492 #! /bin/sh
2493 EOF
2494 chmod +x $TMPSH >> $logfile 2>&1
2495 if ! $TMPSH >> $logfile 2>&1; then
2496 cat <<EOF
2497 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2498 variable to another directory and make sure that it is not mounted noexec.
2499 EOF
2500 die "Sanity test failed."
2501 fi
2502
2503 ccc_flags(){
2504 for flag; do
2505 case $flag in
2506 -std=c99) echo -c99 ;;
2507 -mcpu=*) echo -arch ${flag#*=} ;;
2508 -mieee) echo -ieee ;;
2509 -O*|-fast) echo $flag ;;
2510 -fno-math-errno) echo -assume nomath_errno ;;
2511 -g) echo -g3 ;;
2512 -Wall) echo -msg_enable level2 ;;
2513 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2514 -Wl,*) echo $flag ;;
2515 -f*|-W*) ;;
2516 *) echo $flag ;;
2517 esac
2518 done
2519 }
2520
2521 cparser_flags(){
2522 for flag; do
2523 case $flag in
2524 -Wno-switch) echo -Wno-switch-enum ;;
2525 -Wno-format-zero-length) ;;
2526 -Wdisabled-optimization) ;;
2527 -Wno-pointer-sign) echo -Wno-other ;;
2528 *) echo $flag ;;
2529 esac
2530 done
2531 }
2532
2533 msvc_common_flags(){
2534 for flag; do
2535 case $flag in
2536 # In addition to specifying certain flags under the compiler
2537 # specific filters, they must be specified here as well or else the
2538 # generic catch all at the bottom will print the original flag.
2539 -Wall) ;;
2540 -std=c99) ;;
2541 # Common flags
2542 -fomit-frame-pointer) ;;
2543 -g) echo -Z7 ;;
2544 -fno-math-errno) ;;
2545 -fno-common) ;;
2546 -fno-signed-zeros) ;;
2547 -fPIC) ;;
2548 -mthumb) ;;
2549 -march=*) ;;
2550 -lz) echo zlib.lib ;;
2551 -lavifil32) echo vfw32.lib ;;
2552 -lavicap32) echo vfw32.lib user32.lib ;;
2553 -l*) echo ${flag#-l}.lib ;;
2554 *) echo $flag ;;
2555 esac
2556 done
2557 }
2558
2559 msvc_flags(){
2560 msvc_common_flags "$@"
2561 for flag; do
2562 case $flag in
2563 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2564 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2565 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2566 -wd4273 ;;
2567 esac
2568 done
2569 }
2570
2571 icl_flags(){
2572 msvc_common_flags "$@"
2573 for flag; do
2574 case $flag in
2575 # Despite what Intel's documentation says -Wall, which is supported
2576 # on Windows, does enable remarks so disable them here.
2577 -Wall) echo $flag -Qdiag-disable:remark ;;
2578 -std=c99) echo -Qstd=c99 ;;
2579 esac
2580 done
2581 }
2582
2583 pgi_flags(){
2584 for flag; do
2585 case $flag in
2586 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2587 -fomit-frame-pointer) echo -Mnoframe ;;
2588 -g) echo -gopt ;;
2589 *) echo $flag ;;
2590 esac
2591 done
2592 }
2593
2594 suncc_flags(){
2595 for flag; do
2596 case $flag in
2597 -march=*|-mcpu=*)
2598 case "${flag#*=}" in
2599 native) echo -xtarget=native ;;
2600 v9|niagara) echo -xarch=sparc ;;
2601 ultrasparc) echo -xarch=sparcvis ;;
2602 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2603 i586|pentium) echo -xchip=pentium ;;
2604 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2605 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2606 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2607 pentium4*) echo -xtarget=pentium4 ;;
2608 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2609 *-sse3) echo -xarch=sse3 ;;
2610 core2) echo -xarch=ssse3 -xchip=core2 ;;
2611 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2612 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2613 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2614 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2615 k8|opteron|athlon64|athlon-fx)
2616 echo -xarch=sse2a ;;
2617 athlon*) echo -xarch=pentium_proa ;;
2618 esac
2619 ;;
2620 -std=c99) echo -xc99 ;;
2621 -fomit-frame-pointer) echo -xregs=frameptr ;;
2622 -fPIC) echo -KPIC -xcode=pic32 ;;
2623 -W*,*) echo $flag ;;
2624 -f*-*|-W*|-mimpure-text) ;;
2625 -shared) echo -G ;;
2626 *) echo $flag ;;
2627 esac
2628 done
2629 }
2630
2631 tms470_flags(){
2632 for flag; do
2633 case $flag in
2634 -march=*|-mcpu=*)
2635 case "${flag#*=}" in
2636 armv7-a|cortex-a*) echo -mv=7a8 ;;
2637 armv7-r|cortex-r*) echo -mv=7r4 ;;
2638 armv7-m|cortex-m*) echo -mv=7m3 ;;
2639 armv6*|arm11*) echo -mv=6 ;;
2640 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2641 echo -mv=5e ;;
2642 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2643 esac
2644 ;;
2645 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2646 -mfpu=vfp) echo --float_support=vfpv2 ;;
2647 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2648 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2649 -msoft-float) echo --float_support=vfplib ;;
2650 -O[0-3]|-mf=*) echo $flag ;;
2651 -g) echo -g -mn ;;
2652 -pds=*) echo $flag ;;
2653 -D*|-I*) echo $flag ;;
2654 --gcc|--abi=*) echo $flag ;;
2655 -me) echo $flag ;;
2656 esac
2657 done
2658 }
2659
2660 probe_cc(){
2661 pfx=$1
2662 _cc=$2
2663
2664 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2665 unset _ld_o _ldflags _ld_lib _ld_path
2666 unset _depflags _DEPCMD _DEPFLAGS
2667 _flags_filter=echo
2668
2669 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2670 _type=llvm_gcc
2671 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2672 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2673 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2674 _cflags_speed='-O3'
2675 _cflags_size='-Os'
2676 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2677 _type=gcc
2678 gcc_version=$($_cc --version | head -n1)
2679 gcc_basever=$($_cc -dumpversion)
2680 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2681 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2682 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2683 if ! $_cc -dumpversion | grep -q '^2\.'; then
2684 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2685 fi
2686 _cflags_speed='-O3'
2687 _cflags_size='-Os'
2688 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2689 _type=icc
2690 _ident=$($_cc --version | head -n1)
2691 _depflags='-MMD'
2692 _cflags_speed='-O3'
2693 _cflags_size='-Os'
2694 _cflags_noopt='-O1'
2695 elif $_cc -v 2>&1 | grep -q xlc; then
2696 _type=xlc
2697 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2698 _cflags_speed='-O5'
2699 _cflags_size='-O5 -qcompact'
2700 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2701 _type=ccc
2702 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2703 _DEPFLAGS='-M'
2704 _cflags_speed='-fast'
2705 _cflags_size='-O1'
2706 _flags_filter=ccc_flags
2707 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2708 test -d "$sysroot" || die "No valid sysroot specified."
2709 _type=armcc
2710 _ident=$($_cc --vsn | head -n1)
2711 armcc_conf="$PWD/armcc.conf"
2712 $_cc --arm_linux_configure \
2713 --arm_linux_config_file="$armcc_conf" \
2714 --configure_sysroot="$sysroot" \
2715 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2716 die "Error creating armcc configuration file."
2717 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2718 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2719 as_default="${cross_prefix}gcc"
2720 _depflags='-MMD'
2721 _cflags_speed='-O3'
2722 _cflags_size='-Os'
2723 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2724 _type=tms470
2725 _ident=$($_cc -version | head -n1 | tr -s ' ')
2726 _flags='--gcc --abi=eabi -me'
2727 _cc_e='-ppl -fe=$@'
2728 _cc_o='-fe=$@'
2729 _depflags='-ppa -ppd=$(@:.o=.d)'
2730 _cflags_speed='-O3 -mf=5'
2731 _cflags_size='-O3 -mf=2'
2732 _flags_filter=tms470_flags
2733 elif $_cc -v 2>&1 | grep -q clang; then
2734 _type=clang
2735 _ident=$($_cc --version | head -n1)
2736 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2737 _cflags_speed='-O3'
2738 _cflags_size='-Os'
2739 elif $_cc -V 2>&1 | grep -q Sun; then
2740 _type=suncc
2741 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2742 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2743 _DEPFLAGS='-xM1 -xc99'
2744 _ldflags='-std=c99'
2745 _cflags_speed='-O5'
2746 _cflags_size='-O5 -xspace'
2747 _flags_filter=suncc_flags
2748 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2749 _type=pathscale
2750 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2751 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2752 _cflags_speed='-O2'
2753 _cflags_size='-Os'
2754 _flags_filter='filter_out -Wdisabled-optimization'
2755 elif $_cc -v 2>&1 | grep -q Open64; then
2756 _type=open64
2757 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2758 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2759 _cflags_speed='-O2'
2760 _cflags_size='-Os'
2761 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2762 elif $_cc -V 2>&1 | grep -q Portland; then
2763 _type=pgi
2764 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2765 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2766 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2767 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2768 _cflags_noopt="-O1"
2769 _flags_filter=pgi_flags
2770 elif $_cc 2>&1 | grep -q Microsoft; then
2771 _type=msvc
2772 _ident=$($cc 2>&1 | head -n1)
2773 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2774 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2775 _cflags_speed="-O2"
2776 _cflags_size="-O1"
2777 if $_cc 2>&1 | grep -q Linker; then
2778 _ld_o='-out:$@'
2779 else
2780 _ld_o='-Fe$@'
2781 fi
2782 _cc_o='-Fo$@'
2783 _cc_e='-P -Fi$@'
2784 _flags_filter=msvc_flags
2785 _ld_lib='lib%.a'
2786 _ld_path='-libpath:'
2787 _flags='-nologo'
2788 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2789 if [ $pfx = hostcc ]; then
2790 append _cflags -Dsnprintf=_snprintf
2791 fi
2792 elif $_cc 2>&1 | grep -q Intel; then
2793 _type=icl
2794 _ident=$($cc 2>&1 | head -n1)
2795 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2796 # Not only is O3 broken on 13.x+ but it is slower on all previous
2797 # versions (tested) as well.
2798 _cflags_speed="-O2"
2799 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2800 if $_cc 2>&1 | grep -q Linker; then
2801 _ld_o='-out:$@'
2802 else
2803 _ld_o='-Fe$@'
2804 fi
2805 _cc_o='-Fo$@'
2806 _cc_e='-P'
2807 _flags_filter=icl_flags
2808 _ld_lib='lib%.a'
2809 _ld_path='-libpath:'
2810 # -Qdiag-error to make icl error when seeing certain unknown arguments
2811 _flags='-nologo -Qdiag-error:4044,10157'
2812 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2813 # with MSVC which enables it by default.
2814 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2815 if [ $pfx = hostcc ]; then
2816 append _cflags -Dsnprintf=_snprintf
2817 fi
2818 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2819 _type=cparser
2820 _ident=$($_cc --version | head -n1)
2821 _depflags='-MMD'
2822 _cflags_speed='-O4'
2823 _cflags_size='-O2'
2824 _flags_filter=cparser_flags
2825 fi
2826
2827 eval ${pfx}_type=\$_type
2828 eval ${pfx}_ident=\$_ident
2829 }
2830
2831 set_ccvars(){
2832 eval ${1}_C=\${_cc_c-\${${1}_C}}
2833 eval ${1}_E=\${_cc_e-\${${1}_E}}
2834 eval ${1}_O=\${_cc_o-\${${1}_O}}
2835
2836 if [ -n "$_depflags" ]; then
2837 eval ${1}_DEPFLAGS=\$_depflags
2838 else
2839 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2840 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2841 eval DEP${1}FLAGS=\$_flags
2842 fi
2843 }
2844
2845 probe_cc cc "$cc"
2846 cflags_filter=$_flags_filter
2847 cflags_speed=$_cflags_speed
2848 cflags_size=$_cflags_size
2849 cflags_noopt=$_cflags_noopt
2850 add_cflags $_flags $_cflags
2851 cc_ldflags=$_ldflags
2852 set_ccvars CC
2853
2854 probe_cc hostcc "$host_cc"
2855 host_cflags_filter=$_flags_filter
2856 add_host_cflags $_flags $_cflags
2857 set_ccvars HOSTCC
2858
2859 test -n "$cc_type" && enable $cc_type ||
2860 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2861
2862 : ${as_default:=$cc}
2863 : ${dep_cc_default:=$cc}
2864 : ${ld_default:=$cc}
2865 : ${host_ld_default:=$host_cc}
2866 set_default ar as dep_cc ld host_ld
2867
2868 probe_cc as "$as"
2869 asflags_filter=$_flags_filter
2870 add_asflags $_flags $_cflags
2871 set_ccvars AS
2872
2873 probe_cc ld "$ld"
2874 ldflags_filter=$_flags_filter
2875 add_ldflags $_flags $_ldflags
2876 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2877 LD_O=${_ld_o-$LD_O}
2878 LD_LIB=${_ld_lib-$LD_LIB}
2879 LD_PATH=${_ld_path-$LD_PATH}
2880
2881 probe_cc hostld "$host_ld"
2882 host_ldflags_filter=$_flags_filter
2883 add_host_ldflags $_flags $_ldflags
2884 HOSTLD_O=${_ld_o-$HOSTLD_O}
2885
2886 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2887 probe_cc depcc "$dep_cc"
2888 CCDEP=${_DEPCMD:-$DEPCMD}
2889 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2890 DEPCCFLAGS=$_flags
2891 fi
2892
2893 if $ar 2>&1 | grep -q Microsoft; then
2894 arflags="-nologo"
2895 ar_o='-out:$@'
2896 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2897 arflags="rq"
2898 ar_o='$@'
2899 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2900 arflags='-Xany -r -c'
2901 ar_o='$@'
2902 else
2903 arflags="rc"
2904 ar_o='$@'
2905 fi
2906
2907 add_cflags $extra_cflags
2908 add_asflags $extra_cflags
2909
2910 if test -n "$sysroot"; then
2911 case "$cc_type" in
2912 gcc|llvm_gcc|clang)
2913 add_cppflags --sysroot="$sysroot"
2914 add_ldflags --sysroot="$sysroot"
2915 ;;
2916 tms470)
2917 add_cppflags -I"$sysinclude"
2918 add_ldflags --sysroot="$sysroot"
2919 ;;
2920 esac
2921 fi
2922
2923 if test "$cpu" = host; then
2924 enabled cross_compile &&
2925 die "--cpu=host makes no sense when cross-compiling."
2926
2927 case "$cc_type" in
2928 gcc|llvm_gcc)
2929 check_native(){
2930 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2931 sed -n "/cc1.*$1=/{
2932 s/.*$1=\\([^ ]*\\).*/\\1/
2933 p
2934 q
2935 }" $TMPE
2936 }
2937 cpu=$(check_native -march || check_native -mcpu)
2938 ;;
2939 esac
2940
2941 test "${cpu:-host}" = host &&
2942 die "--cpu=host not supported with compiler $cc"
2943 fi
2944
2945 # Deal with common $arch aliases
2946 case "$arch" in
2947 aarch64|arm64)
2948 arch="aarch64"
2949 ;;
2950 arm*)
2951 arch="arm"
2952 ;;
2953 mips*|IP*)
2954 arch="mips"
2955 ;;
2956 parisc*|hppa*)
2957 arch="parisc"
2958 ;;
2959 "Power Macintosh"|ppc*|powerpc*)
2960 arch="ppc"
2961 ;;
2962 s390|s390x)
2963 arch="s390"
2964 ;;
2965 sh4|sh)
2966 arch="sh4"
2967 ;;
2968 sun4u|sparc*)
2969 arch="sparc"
2970 ;;
2971 tilegx|tile-gx)
2972 arch="tilegx"
2973 ;;
2974 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2975 arch="x86"
2976 ;;
2977 esac
2978
2979 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2980 enable $arch
2981
2982 # Add processor-specific flags
2983 if enabled aarch64; then
2984
2985 case $cpu in
2986 armv*)
2987 cpuflags="-march=$cpu"
2988 ;;
2989 *)
2990 cpuflags="-mcpu=$cpu"
2991 ;;
2992 esac
2993
2994 elif enabled alpha; then
2995
2996 cpuflags="-mcpu=$cpu"
2997
2998 elif enabled arm; then
2999
3000 check_arm_arch() {
3001 check_cpp_condition stddef.h \
3002 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3003 $cpuflags
3004 }
3005
3006 probe_arm_arch() {
3007 if check_arm_arch 4; then echo armv4;
3008 elif check_arm_arch 4T; then echo armv4t;
3009 elif check_arm_arch 5; then echo armv5;
3010 elif check_arm_arch 5E; then echo armv5e;
3011 elif check_arm_arch 5T; then echo armv5t;
3012 elif check_arm_arch 5TE; then echo armv5te;
3013 elif check_arm_arch 5TEJ; then echo armv5te;
3014 elif check_arm_arch 6; then echo armv6;
3015 elif check_arm_arch 6J; then echo armv6j;
3016 elif check_arm_arch 6K; then echo armv6k;
3017 elif check_arm_arch 6Z; then echo armv6z;
3018 elif check_arm_arch 6ZK; then echo armv6zk;
3019 elif check_arm_arch 6T2; then echo armv6t2;
3020 elif check_arm_arch 7; then echo armv7;
3021 elif check_arm_arch 7A 7_A; then echo armv7-a;
3022 elif check_arm_arch 7R 7_R; then echo armv7-r;
3023 elif check_arm_arch 7M 7_M; then echo armv7-m;
3024 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3025 elif check_arm_arch 8A 8_A; then echo armv8-a;
3026 fi
3027 }
3028
3029 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3030
3031 case $cpu in
3032 armv*)
3033 cpuflags="-march=$cpu"
3034 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3035 ;;
3036 *)
3037 cpuflags="-mcpu=$cpu"
3038 case $cpu in
3039 cortex-a*) subarch=armv7a ;;
3040 cortex-r*) subarch=armv7r ;;
3041 cortex-m*) enable thumb; subarch=armv7m ;;
3042 arm11*) subarch=armv6 ;;
3043 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3044 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3045 *) subarch=$(probe_arm_arch) ;;
3046 esac
3047 ;;
3048 esac
3049
3050 case "$subarch" in
3051 armv5t*) enable fast_clz ;;
3052 armv[6-8]*) enable fast_clz fast_unaligned ;;
3053 esac
3054
3055 elif enabled avr32; then
3056
3057 case $cpu in
3058 ap7[02]0[0-2])
3059 subarch="avr32_ap"
3060 cpuflags="-mpart=$cpu"
3061 ;;
3062 ap)
3063 subarch="avr32_ap"
3064 cpuflags="-march=$cpu"
3065 ;;
3066 uc3[ab]*)
3067 subarch="avr32_uc"
3068 cpuflags="-mcpu=$cpu"
3069 ;;
3070 uc)
3071 subarch="avr32_uc"
3072 cpuflags="-march=$cpu"
3073 ;;
3074 esac
3075
3076 elif enabled bfin; then
3077
3078 cpuflags="-mcpu=$cpu"
3079
3080 elif enabled mips; then
3081
3082 cpuflags="-march=$cpu"
3083
3084 elif enabled ppc; then
3085
3086 case $(tolower $cpu) in
3087 601|ppc601|powerpc601)
3088 cpuflags="-mcpu=601"
3089 disable altivec
3090 ;;
3091 603*|ppc603*|powerpc603*)
3092 cpuflags="-mcpu=603"
3093 disable altivec
3094 ;;
3095 604*|ppc604*|powerpc604*)
3096 cpuflags="-mcpu=604"
3097 disable altivec
3098 ;;
3099 g3|75*|ppc75*|powerpc75*)
3100 cpuflags="-mcpu=750"
3101 disable altivec
3102 ;;
3103 g4|745*|ppc745*|powerpc745*)
3104 cpuflags="-mcpu=7450"
3105 ;;
3106 74*|ppc74*|powerpc74*)
3107 cpuflags="-mcpu=7400"
3108 ;;
3109 g5|970|ppc970|powerpc970)
3110 cpuflags="-mcpu=970"
3111 ;;
3112 power[3-7]*)
3113 cpuflags="-mcpu=$cpu"
3114 ;;
3115 cell)
3116 cpuflags="-mcpu=cell"
3117 enable ldbrx
3118 ;;
3119 e500mc)
3120 cpuflags="-mcpu=e500mc"
3121 disable altivec
3122 ;;
3123 e500v2)
3124 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3125 disable altivec
3126 ;;
3127 e500)
3128 cpuflags="-mcpu=8540 -mhard-float"
3129 disable altivec
3130 ;;
3131 esac
3132
3133 elif enabled sparc; then
3134
3135 case $cpu in
3136 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3137 cpuflags="-mcpu=$cpu"
3138 disable vis
3139 ;;
3140 ultrasparc*|niagara[234])
3141 cpuflags="-mcpu=$cpu"
3142 ;;
3143 esac
3144
3145 elif enabled x86; then
3146
3147 case $cpu in
3148 i[345]86|pentium)
3149 cpuflags="-march=$cpu"
3150 disable mmx
3151 ;;
3152 # targets that do NOT support nopl and conditional mov (cmov)
3153 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3154 cpuflags="-march=$cpu"
3155 disable i686
3156 ;;
3157 # targets that do support nopl and conditional mov (cmov)
3158 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3159 cpuflags="-march=$cpu"
3160 enable i686
3161 enable fast_cmov
3162 ;;
3163 # targets that do support conditional mov but on which it's slow
3164 pentium4|pentium4m|prescott|nocona)
3165 cpuflags="-march=$cpu"
3166 enable i686
3167 disable fast_cmov
3168 ;;
3169 esac
3170
3171 fi
3172
3173 if [ "$cpu" != generic ]; then
3174 add_cflags $cpuflags
3175 add_asflags $cpuflags
3176 fi
3177
3178 # compiler sanity check
3179 check_exec <<EOF
3180 int main(void){ return 0; }
3181 EOF
3182 if test "$?" != 0; then
3183 echo "$cc is unable to create an executable file."
3184 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3185 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3186 echo "Only do this if you know what cross compiling means."
3187 fi
3188 die "C compiler test failed."
3189 fi
3190
3191 add_cppflags -D_ISOC99_SOURCE
3192 check_cflags -std=c99
3193 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3194 #include <stdlib.h>
3195 EOF
3196 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3197 #include <stdlib.h>
3198 EOF
3199
3200 add_host_cppflags -D_ISOC99_SOURCE
3201 check_host_cflags -std=c99
3202 check_host_cflags -Wall
3203 check_host_cflags -O3
3204
3205 check_64bit(){
3206 arch32=$1
3207 arch64=$2
3208 expr=$3
3209 check_code cc "" "int test[2*($expr) - 1]" &&
3210 subarch=$arch64 || subarch=$arch32
3211 }
3212
3213 case "$arch" in
3214 aarch64|alpha|ia64)
3215 spic=$shared
3216 ;;
3217 mips)
3218 check_64bit mips mips64 '_MIPS_SIM > 1'
3219 spic=$shared
3220 ;;
3221 parisc)
3222 check_64bit parisc parisc64 'sizeof(void *) > 4'
3223 spic=$shared
3224 ;;
3225 ppc)
3226 check_64bit ppc ppc64 'sizeof(void *) > 4'
3227 spic=$shared
3228 ;;
3229 s390)
3230 check_64bit s390 s390x 'sizeof(void *) > 4'
3231 spic=$shared
3232 ;;
3233 sparc)
3234 check_64bit sparc sparc64 'sizeof(void *) > 4'
3235 spic=$shared
3236 ;;
3237 x86)
3238 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3239 if test "$subarch" = "x86_64"; then
3240 spic=$shared
3241 fi
3242 ;;
3243 esac
3244
3245 enable $subarch
3246 enabled spic && enable_weak pic
3247
3248 # OS specific
3249 case $target_os in
3250 aix)
3251 SHFLAGS=-shared
3252 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3253 enabled shared && add_ldflags -Wl,-brtl
3254 ;;
3255 haiku)
3256 prefix_default="/boot/common"
3257 network_extralibs="-lnetwork"
3258 host_libs=
3259 ;;
3260 sunos)
3261 SHFLAGS='-shared -Wl,-h,$$(@F)'
3262 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3263 network_extralibs="-lsocket -lnsl"
3264 # When using suncc to build, the Solaris linker will mark
3265 # an executable with each instruction set encountered by
3266 # the Solaris assembler. As our libraries contain their own
3267 # guards for processor-specific code, instead suppress
3268 # generation of the HWCAPS ELF section on Solaris x86 only.
3269 enabled_all suncc x86 &&
3270 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3271 add_ldflags -Wl,-M,mapfile
3272 nm_default='nm -P -g'
3273 ;;
3274 netbsd)
3275 disable symver
3276 oss_indev_extralibs="-lossaudio"
3277 oss_outdev_extralibs="-lossaudio"
3278 ;;
3279 openbsd|bitrig)
3280 disable symver
3281 SHFLAGS='-shared'
3282 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3283 SLIB_INSTALL_LINKS=
3284 oss_indev_extralibs="-lossaudio"
3285 oss_outdev_extralibs="-lossaudio"
3286 ;;
3287 dragonfly)
3288 disable symver
3289 ;;
3290 freebsd)
3291 ;;
3292 bsd/os)
3293 add_extralibs -lpoll -lgnugetopt
3294 ;;
3295 darwin)
3296 gas="gas-preprocessor.pl $cc"
3297 enabled ppc && add_asflags -force_cpusubtype_ALL
3298 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3299 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3300 add_ldflags -Wl,-dynamic,-search_paths_first
3301 SLIBSUF=".dylib"
3302 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3303 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3304 objformat="macho"
3305 enabled x86_64 && objformat="macho64"
3306 enabled_any pic shared ||
3307 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3308 ;;
3309 mingw32*)
3310 if test $target_os = "mingw32ce"; then
3311 disable network
3312 else
3313 target_os=mingw32
3314 fi
3315 LIBTARGET=i386
3316 if enabled x86_64; then
3317 LIBTARGET="i386:x86-64"
3318 elif enabled arm; then
3319 LIBTARGET=arm-wince
3320 fi
3321 check_ldflags -Wl,--nxcompat
3322 check_ldflags -Wl,--dynamicbase
3323 shlibdir_default="$bindir_default"
3324 SLIBPREF=""
3325 SLIBSUF=".dll"
3326 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3327 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3328 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3329 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3330 SLIB_INSTALL_LINKS=
3331 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3332 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3333 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3334 objformat="win32"
3335 dlltool="${cross_prefix}dlltool"
3336 ranlib=:
3337 enable dos_paths
3338 ;;
3339 win32|win64)
3340 disable symver
3341 if enabled shared; then
3342 # Link to the import library instead of the normal static library
3343 # for shared libs.
3344 LD_LIB='%.lib'
3345 # Cannot build both shared and static libs with MSVC or icl.
3346 disable static
3347 fi
3348 shlibdir_default="$bindir_default"
3349 SLIBPREF=""
3350 SLIBSUF=".dll"
3351 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3352 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3353 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3354 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3355 SLIB_INSTALL_LINKS=
3356 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3357 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3358 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3359 objformat="win32"
3360 ranlib=:
3361 enable dos_paths
3362 ;;
3363 cygwin*)
3364 target_os=cygwin
3365 shlibdir_default="$bindir_default"
3366 SLIBPREF="cyg"
3367 SLIBSUF=".dll"
3368 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3369 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3370 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3371 SLIB_INSTALL_LINKS=
3372 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3373 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3374 objformat="win32"
3375 enable dos_paths
3376 ;;
3377 *-dos|freedos|opendos)
3378 network_extralibs="-lsocket"
3379 objformat="coff"
3380 enable dos_paths
3381 add_cppflags -U__STRICT_ANSI__
3382 ;;
3383 linux)
3384 enable dv1394
3385 ;;
3386 irix*)
3387 target_os=irix
3388 ranlib="echo ignoring ranlib"
3389 ;;
3390 os/2*)
3391 ln_s="cp -f"
3392 objformat="aout"
3393 add_cppflags -D_GNU_SOURCE
3394 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3395 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3396 LIBSUF="_s.a"
3397 SLIBPREF=""
3398 SLIBSUF=".dll"
3399 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3400 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3401 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3402 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3403 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3404 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3405 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3406 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3407 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3408 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3409 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3410 enable dos_paths
3411 ;;
3412 gnu/kfreebsd)
3413 add_cppflags -D_BSD_SOURCE
3414 ;;
3415 gnu)
3416 ;;
3417 qnx)
3418 add_cppflags -D_QNX_SOURCE
3419 network_extralibs="-lsocket"
3420 ;;
3421 symbian)
3422 SLIBSUF=".dll"
3423 enable dos_paths
3424 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3425 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3426 add_ldflags -Wl,--target1-abs,--no-undefined \
3427 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3428 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3429 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3430 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3431 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3432 ;;
3433 osf1)
3434 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3435 ;;
3436 minix)
3437 ;;
3438 plan9)
3439 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3440 -D_REENTRANT_SOURCE \
3441 -D_RESEARCH_SOURCE \
3442 -DFD_SETSIZE=96 \
3443 -DHAVE_SOCK_OPTS
3444 add_compat strtod.o strtod=avpriv_strtod
3445 network_extralibs='-lbsd'
3446 exeobjs=compat/plan9/main.o
3447 disable avserver
3448 cp_f='cp'
3449 ;;
3450 none)
3451 ;;
3452 *)
3453 die "Unknown OS '$target_os'."
3454 ;;
3455 esac
3456
3457 # determine libc flavour
3458
3459 probe_libc(){
3460 pfx=$1
3461 pfx_no_=${pfx%_}
3462 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3463 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3464 eval ${pfx}libc_type=uclibc
3465 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3466 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3467 eval ${pfx}libc_type=glibc
3468 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3469 # MinGW headers can be installed on Cygwin, so check for newlib first.
3470 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3471 eval ${pfx}libc_type=newlib
3472 add_${pfx}cppflags -U__STRICT_ANSI__
3473 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3474 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3475 eval ${pfx}libc_type=mingw64
3476 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3477 eval test \$${pfx_no_}cc_type = "gcc" &&
3478 add_${pfx}cppflags -D__printf__=__gnu_printf__
3479 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3480 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3481 eval ${pfx}libc_type=mingw32
3482 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3483 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3484 die "ERROR: MinGW32 runtime version must be >= 3.15."
3485 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3486 eval test \$${pfx_no_}cc_type = "gcc" &&
3487 add_${pfx}cppflags -D__printf__=__gnu_printf__
3488 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3489 eval ${pfx}libc_type=msvcrt
3490 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3491 # 0x601 by default unless something else is set by the user.
3492 # This can easily lead to us detecting functions only present
3493 # in such new versions and producing binaries requiring windows 7.0.
3494 # Therefore explicitly set the default to XP unless the user has
3495 # set something else on the command line.
3496 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3497 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3498 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3499 eval ${pfx}libc_type=klibc
3500 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3501 eval ${pfx}libc_type=bionic
3502 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3503 eval ${pfx}libc_type=solaris
3504 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3505 fi
3506 }
3507
3508 probe_libc
3509 test -n "$libc_type" && enable libc_$libc_type
3510 probe_libc host_
3511 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3512
3513 case $libc_type in
3514 bionic)
3515 add_compat strtod.o strtod=avpriv_strtod
3516 ;;
3517 msvcrt)
3518 add_compat strtod.o strtod=avpriv_strtod
3519 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3520 _snprintf=avpriv_snprintf \
3521 vsnprintf=avpriv_vsnprintf
3522 ;;
3523 esac
3524
3525 # hacks for compiler/libc/os combinations
3526
3527 if enabled_all tms470 libc_glibc; then
3528 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3529 add_cppflags -D__USER_LABEL_PREFIX__=
3530 add_cppflags -D__builtin_memset=memset
3531 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3532 add_cflags -pds=48 # incompatible redefinition of macro
3533 fi
3534
3535 if enabled_all ccc libc_glibc; then
3536 add_ldflags -Wl,-z,now # calls to libots crash without this
3537 fi
3538
3539 esc(){
3540 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3541 }
3542
3543 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3544
3545 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3546
3547 set_default $PATHS_LIST
3548 set_default nm
3549
3550 # we need to build at least one lib type
3551 if ! enabled_any static shared; then
3552 cat <<EOF
3553 At least one library type must be built.
3554 Specify --enable-static to build the static libraries or --enable-shared to
3555 build the shared libraries as well. To only build the shared libraries specify
3556 --disable-static in addition to --enable-shared.
3557 EOF
3558 exit 1;
3559 fi
3560
3561 die_license_disabled() {
3562 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3563 }
3564
3565 die_license_disabled gpl libcdio
3566 die_license_disabled gpl libx264
3567 die_license_disabled gpl libx265
3568 die_license_disabled gpl libxavs
3569 die_license_disabled gpl libxvid
3570 die_license_disabled gpl x11grab
3571
3572 die_license_disabled nonfree libfaac
3573 die_license_disabled nonfree libfdk_aac
3574 die_license_disabled nonfree openssl
3575
3576 die_license_disabled version3 libopencore_amrnb
3577 die_license_disabled version3 libopencore_amrwb
3578 die_license_disabled version3 libvo_aacenc
3579 die_license_disabled version3 libvo_amrwbenc
3580
3581 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3582
3583 disabled optimizations || check_cflags -fomit-frame-pointer
3584
3585 enable_weak_pic() {
3586 disabled pic && return
3587 enable pic
3588 add_cppflags -DPIC
3589 case "$target_os" in
3590 mingw*|cygwin*)
3591 ;;
3592 *)
3593 add_cflags -fPIC
3594 ;;
3595 esac
3596 add_asflags -fPIC
3597 }
3598
3599 enabled pic && enable_weak_pic
3600
3601 check_cc <<EOF || die "Symbol mangling check failed."
3602 int ff_extern;
3603 EOF
3604 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3605 extern_prefix=${sym%%ff_extern*}
3606
3607 check_cc <<EOF && enable_weak inline_asm
3608 void foo(void) { __asm__ volatile ("" ::); }
3609 EOF
3610
3611 _restrict=
3612 for restrict_keyword in restrict __restrict__ __restrict; do
3613 check_cc <<EOF && _restrict=$restrict_keyword && break
3614 void foo(char * $restrict_keyword p);
3615 EOF
3616 done
3617
3618 check_cc <<EOF && enable pragma_deprecated
3619 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3620 EOF
3621
3622 check_cc <<EOF && enable attribute_packed
3623 struct { int x; } __attribute__((packed)) x;
3624 EOF
3625
3626 check_cc <<EOF && enable attribute_may_alias
3627 union { int x; } __attribute__((may_alias)) x;
3628 EOF
3629
3630 check_cc <<EOF || die "endian test failed"
3631 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3632 EOF
3633 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3634
3635 check_inline_asm inline_asm_labels '"1:\n"'
3636
3637 if enabled aarch64; then
3638 # internal assembler in clang 3.3 does not support this instruction
3639 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3640 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3641
3642 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3643
3644 elif enabled alpha; then
3645
3646 check_cflags -mieee
3647
3648 elif enabled arm; then
3649
3650 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3651 enabled thumb && check_cflags -mthumb || check_cflags -marm
3652 nogas=die
3653
3654 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3655 enable vfp_args
3656 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3657 case "${cross_prefix:-$cc}" in
3658 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3659 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3660 __asm__ (".eabi_attribute 28, 1");
3661 int main(void) { return 0; }
3662 EOF
3663 esac
3664 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3665 fi
3666
3667 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3668 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3669 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3670 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3671 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3672 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3673
3674 [ $target_os = linux ] ||
3675 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3676 $ARCH_EXT_LIST_ARM
3677
3678 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3679
3680 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3681
3682 elif enabled mips; then
3683
3684 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3685
3686 elif enabled parisc; then
3687
3688 if enabled gcc; then
3689 case $($cc -dumpversion) in
3690 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3691 esac
3692 fi
3693
3694 elif enabled ppc; then
3695
3696 enable local_aligned_8 local_aligned_16
3697
3698 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'