90e5787b1d30abb4b07b89fd3ba0c090abfd5470
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
141
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
178
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-frei0r enable frei0r video filtering
183 --enable-gnutls enable gnutls [no]
184 --enable-libbs2b enable bs2b DSP library [no]
185 --enable-libcdio enable audio CD grabbing with libcdio
186 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
187 and libraw1394 [no]
188 --enable-libdcadec enable DCA decoding via libdcadec [no]
189 --enable-libfaac enable AAC encoding via libfaac [no]
190 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
191 --enable-libfreetype enable libfreetype [no]
192 --enable-libgsm enable GSM de/encoding via libgsm [no]
193 --enable-libilbc enable iLBC de/encoding via libilbc [no]
194 --enable-libmfx enable HW acceleration through libmfx
195 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
196 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
197 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
198 --enable-libopencv enable video filtering via libopencv [no]
199 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
200 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
201 --enable-libopus enable Opus de/encoding via libopus [no]
202 --enable-libpulse enable Pulseaudio input via libpulse [no]
203 --enable-librtmp enable RTMP[E] support via librtmp [no]
204 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
205 --enable-libspeex enable Speex de/encoding via libspeex [no]
206 --enable-libtheora enable Theora encoding via libtheora [no]
207 --enable-libtwolame enable MP2 encoding via libtwolame [no]
208 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
209 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
210 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
211 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
212 --enable-libwavpack enable wavpack encoding via libwavpack [no]
213 --enable-libwebp enable WebP encoding via libwebp [no]
214 --enable-libx264 enable H.264 encoding via x264 [no]
215 --enable-libx265 enable HEVC encoding via x265 [no]
216 --enable-libxavs enable AVS encoding via xavs [no]
217 --enable-libxcb enable X11 grabbing using XCB [no]
218 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
219 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
220 --enable-libxvid enable Xvid encoding via xvidcore,
221 native MPEG-4/Xvid encoder exists [no]
222 --enable-mmal enable decoding via MMAL [no]
223 --enable-nvenc enable encoding via NVENC [no]
224 --enable-openssl enable openssl [no]
225 --enable-x11grab enable X11 grabbing (legacy) [no]
226 --enable-zlib enable zlib [autodetect]
227
228 Toolchain options:
229 --arch=ARCH select architecture [$arch]
230 --cpu=CPU select the minimum required CPU (affects
231 instruction selection, may crash on older CPUs)
232 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
233 --enable-cross-compile assume a cross-compiler is used
234 --sysroot=PATH root of cross-build tree
235 --sysinclude=PATH location of cross-build system headers
236 --target-os=OS compiler targets OS [$target_os]
237 --target-exec=CMD command to run executables on target
238 --target-path=DIR path to view of build directory on target
239 --target-samples=DIR path to samples directory on target
240 --toolchain=NAME set tool defaults according to NAME
241 --nm=NM use nm tool
242 --ar=AR use archive tool AR [$ar_default]
243 --as=AS use assembler AS [$as_default]
244 --cc=CC use C compiler CC [$cc_default]
245 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
246 --ld=LD use linker LD
247 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
248 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
249 --host-cc=HOSTCC use host C compiler HOSTCC
250 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
251 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
252 --host-ld=HOSTLD use host linker HOSTLD
253 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
254 --host-libs=HLIBS use libs HLIBS when linking for host
255 --host-os=OS compiler host OS [$target_os]
256 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
257 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
258 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
259 --extra-libs=ELIBS add ELIBS [$ELIBS]
260 --extra-version=STRING version string suffix []
261 --optflags=OPTFLAGS override optimization-related compiler flags
262 --build-suffix=SUFFIX library name suffix []
263 --enable-pic build position-independent code
264 --enable-thumb compile for Thumb instruction set
265 --enable-lto use link-time optimization
266 --env="ENV=override" override the environment variables
267
268 Advanced options (experts only):
269 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
270 --disable-symver disable symbol versioning
271 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
272 --disable-safe-bitstream-reader
273 disable buffer boundary checking in bitreaders
274 (faster, but may crash)
275 --enable-memalign-hack emulate memalign, interferes with memory debuggers
276 --enable-sram allow use of on-chip SRAM
277
278 Optimization options (experts only):
279 --disable-asm disable all assembly optimizations
280 --disable-altivec disable AltiVec optimizations
281 --disable-vsx disable VSX optimizations
282 --disable-power8 disable POWER8 optimizations
283 --disable-amd3dnow disable 3DNow! optimizations
284 --disable-amd3dnowext disable 3DNow! extended optimizations
285 --disable-mmx disable MMX optimizations
286 --disable-mmxext disable MMXEXT optimizations
287 --disable-sse disable SSE optimizations
288 --disable-sse2 disable SSE2 optimizations
289 --disable-sse3 disable SSE3 optimizations
290 --disable-ssse3 disable SSSE3 optimizations
291 --disable-sse4 disable SSE4 optimizations
292 --disable-sse42 disable SSE4.2 optimizations
293 --disable-avx disable AVX optimizations
294 --disable-xop disable XOP optimizations
295 --disable-fma3 disable FMA3 optimizations
296 --disable-fma4 disable FMA4 optimizations
297 --disable-avx2 disable AVX2 optimizations
298 --disable-armv5te disable armv5te optimizations
299 --disable-armv6 disable armv6 optimizations
300 --disable-armv6t2 disable armv6t2 optimizations
301 --disable-vfp disable VFP optimizations
302 --disable-neon disable NEON optimizations
303 --disable-inline-asm disable use of inline assembly
304 --disable-yasm disable use of nasm/yasm assembly
305
306 Developer options (useful when working on Libav itself):
307 --disable-debug disable debugging symbols
308 --enable-debug=LEVEL set the debug level [$debuglevel]
309 --disable-optimizations disable compiler optimizations
310 --enable-extra-warnings enable more compiler warnings
311 --samples=PATH location of test samples for FATE, if not set use
312 \$LIBAV_SAMPLES at make invocation time.
313 --enable-neon-clobber-test check NEON registers for clobbering (should be
314 used only for debugging purposes)
315 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
316 should be used only for debugging purposes)
317 --enable-random randomly enable/disable components
318 --disable-random
319 --enable-random=LIST randomly enable/disable specific components or
320 --disable-random=LIST component groups. LIST is a comma-separated list
321 of NAME[:PROB] entries where NAME is a component
322 (group) and PROB the probability associated with
323 NAME (default 0.5).
324 --random-seed=VALUE seed value for --enable/disable-random
325 --disable-valgrind-backtrace do not print a backtrace under Valgrind
326 (only applies to --disable-optimizations builds)
327
328 NOTE: Object files are built at the place where configure is launched.
329 EOF
330 exit 0
331 }
332
333 quotes='""'
334
335 log(){
336 echo "$@" >> $logfile
337 }
338
339 log_file(){
340 log BEGIN $1
341 pr -n -t $1 >> $logfile
342 log END $1
343 }
344
345 echolog(){
346 log "$@"
347 echo "$@"
348 }
349
350 warn(){
351 log "WARNING: $*"
352 WARNINGS="${WARNINGS}WARNING: $*\n"
353 }
354
355 die(){
356 echolog "$@"
357 cat <<EOF
358
359 If you think configure made a mistake, make sure you are using the latest
360 version from Git. If the latest version fails, report the problem to the
361 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
362 EOF
363 if disabled logging; then
364 cat <<EOF
365 Rerun configure with logging enabled (do not use --disable-logging), and
366 include the log this produces with your report.
367 EOF
368 else
369 cat <<EOF
370 Include the log file "$logfile" produced by configure as this will help
371 solving the problem.
372 EOF
373 fi
374 exit 1
375 }
376
377 # Avoid locale weirdness, besides we really just want to translate ASCII.
378 toupper(){
379 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
380 }
381
382 tolower(){
383 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
384 }
385
386 c_escape(){
387 echo "$*" | sed 's/["\\]/\\\0/g'
388 }
389
390 sh_quote(){
391 v=$(echo "$1" | sed "s/'/'\\\\''/g")
392 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
393 echo "$v"
394 }
395
396 cleanws(){
397 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
398 }
399
400 filter(){
401 pat=$1
402 shift
403 for v; do
404 eval "case $v in $pat) echo $v ;; esac"
405 done
406 }
407
408 filter_out(){
409 pat=$1
410 shift
411 for v; do
412 eval "case $v in $pat) ;; *) echo $v ;; esac"
413 done
414 }
415
416 map(){
417 m=$1
418 shift
419 for v; do eval $m; done
420 }
421
422 add_suffix(){
423 suffix=$1
424 shift
425 for v; do echo ${v}${suffix}; done
426 }
427
428 set_all(){
429 value=$1
430 shift
431 for var in $*; do
432 eval $var=$value
433 done
434 }
435
436 set_weak(){
437 value=$1
438 shift
439 for var; do
440 eval : \${$var:=$value}
441 done
442 }
443
444 sanitize_var_name(){
445 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
446 }
447
448 set_safe(){
449 var=$1
450 shift
451 eval $(sanitize_var_name "$var")='$*'
452 }
453
454 get_safe(){
455 eval echo \$$(sanitize_var_name "$1")
456 }
457
458 pushvar(){
459 for pvar in $*; do
460 eval level=\${${pvar}_level:=0}
461 eval ${pvar}_${level}="\$$pvar"
462 eval ${pvar}_level=$(($level+1))
463 done
464 }
465
466 popvar(){
467 for pvar in $*; do
468 eval level=\${${pvar}_level:-0}
469 test $level = 0 && continue
470 eval level=$(($level-1))
471 eval $pvar="\${${pvar}_${level}}"
472 eval ${pvar}_level=$level
473 eval unset ${pvar}_${level}
474 done
475 }
476
477 enable(){
478 set_all yes $*
479 }
480
481 disable(){
482 set_all no $*
483 }
484
485 enable_weak(){
486 set_weak yes $*
487 }
488
489 disable_weak(){
490 set_weak no $*
491 }
492
493 enable_safe(){
494 for var; do
495 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
496 done
497 }
498
499 disable_safe(){
500 for var; do
501 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
502 done
503 }
504
505 do_enable_deep(){
506 for var; do
507 enabled $var && continue
508 eval sel="\$${var}_select"
509 eval sgs="\$${var}_suggest"
510 pushvar var sgs
511 enable_deep $sel
512 popvar sgs
513 enable_deep_weak $sgs
514 popvar var
515 done
516 }
517
518 enable_deep(){
519 do_enable_deep $*
520 enable $*
521 }
522
523 enable_deep_weak(){
524 for var; do
525 disabled $var && continue
526 pushvar var
527 do_enable_deep $var
528 popvar var
529 enable_weak $var
530 done
531 }
532
533 enabled(){
534 test "${1#!}" = "$1" && op== || op=!=
535 eval test "x\$${1#!}" $op "xyes"
536 }
537
538 disabled(){
539 test "${1#!}" = "$1" && op== || op=!=
540 eval test "x\$${1#!}" $op "xno"
541 }
542
543 enabled_all(){
544 for opt; do
545 enabled $opt || return 1
546 done
547 }
548
549 disabled_all(){
550 for opt; do
551 disabled $opt || return 1
552 done
553 }
554
555 enabled_any(){
556 for opt; do
557 enabled $opt && return 0
558 done
559 }
560
561 disabled_any(){
562 for opt; do
563 disabled $opt && return 0
564 done
565 return 1
566 }
567
568 set_default(){
569 for opt; do
570 eval : \${$opt:=\$${opt}_default}
571 done
572 }
573
574 is_in(){
575 value=$1
576 shift
577 for var in $*; do
578 [ $var = $value ] && return 0
579 done
580 return 1
581 }
582
583 do_check_deps(){
584 for cfg; do
585 cfg="${cfg#!}"
586 enabled ${cfg}_checking && die "Circular dependency for $cfg."
587 disabled ${cfg}_checking && continue
588 enable ${cfg}_checking
589 append allopts $cfg
590
591 eval dep_all="\$${cfg}_deps"
592 eval dep_any="\$${cfg}_deps_any"
593 eval dep_sel="\$${cfg}_select"
594 eval dep_sgs="\$${cfg}_suggest"
595 eval dep_ifa="\$${cfg}_if"
596 eval dep_ifn="\$${cfg}_if_any"
597
598 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
599 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
600 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
601
602 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
603 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
604 enabled_all $dep_all || disable $cfg
605 enabled_any $dep_any || disable $cfg
606 disabled_any $dep_sel && disable $cfg
607
608 if enabled $cfg; then
609 enable_deep $dep_sel
610 enable_deep_weak $dep_sgs
611 fi
612
613 disable ${cfg}_checking
614 done
615 }
616
617 check_deps(){
618 unset allopts
619
620 do_check_deps "$@"
621
622 for cfg in $allopts; do
623 enabled $cfg || continue
624 eval dep_extralibs="\$${cfg}_extralibs"
625 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
626 done
627 }
628
629 print_config(){
630 pfx=$1
631 files=$2
632 shift 2
633 map 'eval echo "$v \${$v:-no}"' "$@" |
634 awk "BEGIN { split(\"$files\", files) }
635 {
636 c = \"$pfx\" toupper(\$1);
637 v = \$2;
638 sub(/yes/, 1, v);
639 sub(/no/, 0, v);
640 for (f in files) {
641 file = files[f];
642 if (file ~ /\\.h\$/) {
643 printf(\"#define %s %d\\n\", c, v) >>file;
644 } else if (file ~ /\\.asm\$/) {
645 printf(\"%%define %s %d\\n\", c, v) >>file;
646 } else if (file ~ /\\.mak\$/) {
647 n = -v ? \"\" : \"!\";
648 printf(\"%s%s=yes\\n\", n, c) >>file;
649 }
650 }
651 }"
652 }
653
654 print_enabled(){
655 suf=$1
656 shift
657 for v; do
658 enabled $v && printf "%s\n" ${v%$suf};
659 done
660 }
661
662 append(){
663 var=$1
664 shift
665 eval "$var=\"\$$var $*\""
666 }
667
668 prepend(){
669 var=$1
670 shift
671 eval "$var=\"$* \$$var\""
672 }
673
674 unique(){
675 var=$1
676 uniq_list=""
677 for tok in $(eval echo \$$var); do
678 uniq_list="$(filter_out $tok $uniq_list) $tok"
679 done
680 eval "$var=\"${uniq_list}\""
681 }
682
683 add_cppflags(){
684 append CPPFLAGS "$@"
685 }
686
687 add_cflags(){
688 append CFLAGS $($cflags_filter "$@")
689 }
690
691 add_asflags(){
692 append ASFLAGS $($asflags_filter "$@")
693 }
694
695 add_ldflags(){
696 append LDFLAGS $($ldflags_filter "$@")
697 }
698
699 add_ldexeflags(){
700 append LDEXEFLAGS $($ldflags_filter "$@")
701 }
702
703 add_stripflags(){
704 append STRIPFLAGS "$@"
705 }
706
707 add_extralibs(){
708 prepend extralibs $($ldflags_filter "$@")
709 }
710
711 add_host_cppflags(){
712 append host_cppflags "$@"
713 }
714
715 add_host_cflags(){
716 append host_cflags $($host_cflags_filter "$@")
717 }
718
719 add_host_ldflags(){
720 append host_ldflags $($host_ldflags_filter "$@")
721 }
722
723 add_compat(){
724 append compat_objs $1
725 shift
726 map 'add_cppflags -D$v' "$@"
727 }
728
729 check_cmd(){
730 log "$@"
731 "$@" >> $logfile 2>&1
732 }
733
734 cc_o(){
735 eval printf '%s\\n' $CC_O
736 }
737
738 cc_e(){
739 eval printf '%s\\n' $CC_E
740 }
741
742 check_cc(){
743 log check_cc "$@"
744 cat > $TMPC
745 log_file $TMPC
746 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
747 }
748
749 check_cpp(){
750 log check_cpp "$@"
751 cat > $TMPC
752 log_file $TMPC
753 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
754 }
755
756 as_o(){
757 eval printf '%s\\n' $AS_O
758 }
759
760 check_as(){
761 log check_as "$@"
762 cat > $TMPS
763 log_file $TMPS
764 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
765 }
766
767 check_inline_asm(){
768 log check_inline_asm "$@"
769 name="$1"
770 code="$2"
771 shift 2
772 disable $name
773 check_cc "$@" <<EOF && enable $name
774 void foo(void){ __asm__ volatile($code); }
775 EOF
776 }
777
778 check_insn(){
779 log check_insn "$@"
780 check_inline_asm ${1}_inline "\"$2\""
781 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
782 }
783
784 check_yasm(){
785 log check_yasm "$@"
786 echo "$1" > $TMPS
787 log_file $TMPS
788 shift 1
789 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
790 }
791
792 ld_o(){
793 eval printf '%s\\n' $LD_O
794 }
795
796 check_ld(){
797 log check_ld "$@"
798 flags=$(filter_out '-l*' "$@")
799 libs=$(filter '-l*' "$@")
800 check_cc $($cflags_filter $flags) || return
801 flags=$($ldflags_filter $flags)
802 libs=$($ldflags_filter $libs)
803 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
804 }
805
806 print_include(){
807 hdr=$1
808 test "${hdr%.h}" = "${hdr}" &&
809 echo "#include $hdr" ||
810 echo "#include <$hdr>"
811 }
812
813 check_code(){
814 log check_code "$@"
815 check=$1
816 headers=$2
817 code=$3
818 shift 3
819 {
820 for hdr in $headers; do
821 print_include $hdr
822 done
823 echo "int main(void) { $code; return 0; }"
824 } | check_$check "$@"
825 }
826
827 check_cppflags(){
828 log check_cppflags "$@"
829 check_cc "$@" <<EOF && append CPPFLAGS "$@"
830 int x;
831 EOF
832 }
833
834 test_cflags(){
835 log test_cflags "$@"
836 set -- $($cflags_filter "$@")
837 check_cc "$@" <<EOF
838 int x;
839 EOF
840 }
841
842 check_cflags(){
843 log check_cflags "$@"
844 test_cflags "$@" && add_cflags "$@"
845 }
846
847 test_ldflags(){
848 log test_ldflags "$@"
849 check_ld "$@" <<EOF
850 int main(void){ return 0; }
851 EOF
852 }
853
854 check_ldflags(){
855 log check_ldflags "$@"
856 test_ldflags "$@" && add_ldflags "$@"
857 }
858
859 test_stripflags(){
860 log test_stripflags "$@"
861 # call check_cc to get a fresh TMPO
862 check_cc <<EOF
863 int main(void) { return 0; }
864 EOF
865 check_cmd $strip $STRIPFLAGS "$@" $TMPO
866 }
867
868 check_stripflags(){
869 log check_stripflags "$@"
870 test_stripflags "$@" && add_stripflags "$@"
871 }
872
873 check_header(){
874 log check_header "$@"
875 header=$1
876 shift
877 disable_safe $header
878 check_cpp "$@" <<EOF && enable_safe $header
879 #include <$header>
880 int x;
881 EOF
882 }
883
884 check_func(){
885 log check_func "$@"
886 func=$1
887 shift
888 disable $func
889 check_ld "$@" <<EOF && enable $func
890 extern int $func();
891 int main(void){ $func(); }
892 EOF
893 }
894
895 check_mathfunc(){
896 log check_mathfunc "$@"
897 func=$1
898 narg=$2
899 shift 2
900 test $narg = 2 && args="f, g" || args="f"
901 disable $func
902 check_ld "$@" <<EOF && enable $func
903 #include <math.h>
904 float foo(float f, float g) { return $func($args); }
905 int main(void){ return 0; }
906 EOF
907 }
908
909 check_func_headers(){
910 log check_func_headers "$@"
911 headers=$1
912 funcs=$2
913 shift 2
914 {
915 for hdr in $headers; do
916 print_include $hdr
917 done
918 for func in $funcs; do
919 echo "long check_$func(void) { return (long) $func; }"
920 done
921 echo "int main(void) { return 0; }"
922 } | check_ld "$@" && enable $funcs && enable_safe $headers
923 }
924
925 check_cpp_condition(){
926 log check_cpp_condition "$@"
927 header=$1
928 condition=$2
929 shift 2
930 check_cpp "$@" <<EOF
931 #include <$header>
932 #if !($condition)
933 #error "unsatisfied condition: $condition"
934 #endif
935 EOF
936 }
937
938 check_lib(){
939 log check_lib "$@"
940 header="$1"
941 func="$2"
942 shift 2
943 check_header $header && check_func $func "$@" && add_extralibs "$@"
944 }
945
946 check_lib2(){
947 log check_lib2 "$@"
948 headers="$1"
949 funcs="$2"
950 shift 2
951 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
952 }
953
954 check_pkg_config(){
955 log check_pkg_config "$@"
956 pkg="$1"
957 headers="$2"
958 funcs="$3"
959 shift 3
960 check_cmd $pkg_config --exists --print-errors $pkg || return
961 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
962 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
963 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
964 set_safe "${pkg}_cflags" $pkg_cflags &&
965 set_safe "${pkg}_libs" $pkg_libs
966 }
967
968 check_exec(){
969 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
970 }
971
972 check_exec_crash(){
973 code=$(cat)
974
975 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
976 # are safe but may not be available everywhere. Thus we use
977 # raise(SIGTERM) instead. The check is run in a subshell so we
978 # can redirect the "Terminated" message from the shell. SIGBUS
979 # is not defined by standard C so it is used conditionally.
980
981 (check_exec "$@") >> $logfile 2>&1 <<EOF
982 #include <signal.h>
983 static void sighandler(int sig){
984 raise(SIGTERM);
985 }
986 int foo(void){
987 $code
988 }
989 int (*func_ptr)(void) = foo;
990 int main(void){
991 signal(SIGILL, sighandler);
992 signal(SIGFPE, sighandler);
993 signal(SIGSEGV, sighandler);
994 #ifdef SIGBUS
995 signal(SIGBUS, sighandler);
996 #endif
997 return func_ptr();
998 }
999 EOF
1000 }
1001
1002 check_type(){
1003 log check_type "$@"
1004 headers=$1
1005 type=$2
1006 shift 2
1007 disable_safe "$type"
1008 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1009 }
1010
1011 check_struct(){
1012 log check_struct "$@"
1013 headers=$1
1014 struct=$2
1015 member=$3
1016 shift 3
1017 disable_safe "${struct}_${member}"
1018 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1019 enable_safe "${struct}_${member}"
1020 }
1021
1022 check_builtin(){
1023 log check_builtin "$@"
1024 name=$1
1025 headers=$2
1026 builtin=$3
1027 shift 3
1028 disable "$name"
1029 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1030 }
1031
1032 check_compile_assert(){
1033 log check_compile_assert "$@"
1034 name=$1
1035 headers=$2
1036 condition=$3
1037 shift 3
1038 disable "$name"
1039 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1040 }
1041
1042 require(){
1043 name="$1"
1044 header="$2"
1045 func="$3"
1046 shift 3
1047 check_lib $header $func "$@" || die "ERROR: $name not found"
1048 }
1049
1050 require2(){
1051 name="$1"
1052 headers="$2"
1053 func="$3"
1054 shift 3
1055 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1056 }
1057
1058 require_pkg_config(){
1059 pkg="$1"
1060 check_pkg_config "$@" || die "ERROR: $pkg not found"
1061 add_cflags $(get_safe "${pkg}_cflags")
1062 add_extralibs $(get_safe "${pkg}_libs")
1063 }
1064
1065 hostcc_e(){
1066 eval printf '%s\\n' $HOSTCC_E
1067 }
1068
1069 hostcc_o(){
1070 eval printf '%s\\n' $HOSTCC_O
1071 }
1072
1073 check_host_cc(){
1074 log check_host_cc "$@"
1075 cat > $TMPC
1076 log_file $TMPC
1077 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1078 }
1079
1080 check_host_cpp(){
1081 log check_host_cpp "$@"
1082 cat > $TMPC
1083 log_file $TMPC
1084 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1085 }
1086
1087 check_host_cppflags(){
1088 log check_host_cppflags "$@"
1089 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1090 int x;
1091 EOF
1092 }
1093
1094 check_host_cflags(){
1095 log check_host_cflags "$@"
1096 set -- $($host_cflags_filter "$@")
1097 check_host_cc "$@" <<EOF && append host_cflags "$@"
1098 int x;
1099 EOF
1100 }
1101
1102 check_host_cpp_condition(){
1103 log check_host_cpp_condition "$@"
1104 header=$1
1105 condition=$2
1106 shift 2
1107 check_host_cpp "$@" <<EOF
1108 #include <$header>
1109 #if !($condition)
1110 #error "unsatisfied condition: $condition"
1111 #endif
1112 EOF
1113 }
1114
1115 apply(){
1116 file=$1
1117 shift
1118 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1119 }
1120
1121 cp_if_changed(){
1122 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1123 mkdir -p "$(dirname $2)"
1124 $cp_f "$1" "$2"
1125 }
1126
1127 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1128 # system-dependent things.
1129
1130 COMPONENT_LIST="
1131 bsfs
1132 decoders
1133 demuxers
1134 encoders
1135 filters
1136 hwaccels
1137 indevs
1138 muxers
1139 outdevs
1140 parsers
1141 protocols
1142 "
1143
1144 EXAMPLE_LIST="
1145 avcodec_example
1146 filter_audio_example
1147 metadata_example
1148 output_example
1149 qsvdec_example
1150 transcode_aac_example
1151 "
1152
1153 EXTERNAL_LIBRARY_LIST="
1154 avisynth
1155 bzlib
1156 frei0r
1157 gnutls
1158 libbs2b
1159 libcdio
1160 libdc1394
1161 libdcadec
1162 libfaac
1163 libfdk_aac
1164 libfontconfig
1165 libfreetype
1166 libgsm
1167 libilbc
1168 libmfx
1169 libmp3lame
1170 libopencore_amrnb
1171 libopencore_amrwb
1172 libopencv
1173 libopenh264
1174 libopenjpeg
1175 libopus
1176 libpulse
1177 librtmp
1178 libschroedinger
1179 libspeex
1180 libtheora
1181 libtwolame
1182 libvo_aacenc
1183 libvo_amrwbenc
1184 libvorbis
1185 libvpx
1186 libwavpack
1187 libwebp
1188 libx264
1189 libx265
1190 libxavs
1191 libxcb
1192 libxcb_shm
1193 libxcb_xfixes
1194 libxvid
1195 mmal
1196 nvenc
1197 openssl
1198 x11grab
1199 zlib
1200 "
1201
1202 FEATURE_LIST="
1203 gray
1204 hardcoded_tables
1205 runtime_cpudetect
1206 safe_bitstream_reader
1207 shared
1208 small
1209 sram
1210 static
1211 swscale_alpha
1212 "
1213
1214 HWACCEL_LIST="
1215 d3d11va
1216 dxva2
1217 vaapi
1218 vda
1219 vdpau
1220 "
1221
1222 LIBRARY_LIST="
1223 avcodec
1224 avdevice
1225 avfilter
1226 avformat
1227 avresample
1228 avutil
1229 swscale
1230 "
1231
1232 LICENSE_LIST="
1233 gpl
1234 nonfree
1235 version3
1236 "
1237
1238 PROGRAM_LIST="
1239 avconv
1240 avplay
1241 avprobe
1242 "
1243
1244 SUBSYSTEM_LIST="
1245 dct
1246 doc
1247 error_resilience
1248 faan
1249 fft
1250 lsp
1251 lzo
1252 mdct
1253 network
1254 rdft
1255 "
1256
1257 CONFIG_LIST="
1258 $COMPONENT_LIST
1259 $EXAMPLE_LIST
1260 $EXTERNAL_LIBRARY_LIST
1261 $FEATURE_LIST
1262 $HWACCEL_LIST
1263 $LICENSE_LIST
1264 $LIBRARY_LIST
1265 $PROGRAM_LIST
1266 $SUBSYSTEM_LIST
1267 memalign_hack
1268 neon_clobber_test
1269 pic
1270 pod2man
1271 texi2html
1272 thumb
1273 valgrind_backtrace
1274 xmm_clobber_test
1275 "
1276
1277 THREADS_LIST="
1278 pthreads
1279 w32threads
1280 "
1281
1282 ATOMICS_LIST="
1283 atomics_gcc
1284 atomics_suncc
1285 atomics_win32
1286 "
1287
1288 ARCH_LIST="
1289 aarch64
1290 alpha
1291 arm
1292 avr32
1293 avr32_ap
1294 avr32_uc
1295 bfin
1296 ia64
1297 m68k
1298 mips
1299 mips64
1300 parisc
1301 ppc
1302 ppc64
1303 s390
1304 sh4
1305 sparc
1306 sparc64
1307 tilegx
1308 tilepro
1309 tomi
1310 x86
1311 x86_32
1312 x86_64
1313 "
1314
1315 ARCH_EXT_LIST_ARM="
1316 armv5te
1317 armv6
1318 armv6t2
1319 armv8
1320 neon
1321 vfp
1322 vfpv3
1323 "
1324
1325 ARCH_EXT_LIST_X86_SIMD="
1326 amd3dnow
1327 amd3dnowext
1328 avx
1329 avx2
1330 fma3
1331 fma4
1332 mmx
1333 mmxext
1334 sse
1335 sse2
1336 sse3
1337 sse4
1338 sse42
1339 ssse3
1340 xop
1341 "
1342
1343 ARCH_EXT_LIST_PPC="
1344 altivec
1345 dcbzl
1346 ldbrx
1347 power8
1348 ppc4xx
1349 vsx
1350 "
1351
1352 ARCH_EXT_LIST_X86="
1353 $ARCH_EXT_LIST_X86_SIMD
1354 cpunop
1355 i686
1356 "
1357
1358 ARCH_EXT_LIST="
1359 $ARCH_EXT_LIST_ARM
1360 $ARCH_EXT_LIST_PPC
1361 $ARCH_EXT_LIST_X86
1362 loongson
1363 vis
1364 "
1365
1366 ARCH_FEATURES="
1367 aligned_stack
1368 fast_64bit
1369 fast_clz
1370 fast_cmov
1371 local_aligned_8
1372 local_aligned_16
1373 simd_align_16
1374 "
1375
1376 BUILTIN_LIST="
1377 atomic_cas_ptr
1378 machine_rw_barrier
1379 MemoryBarrier
1380 mm_empty
1381 rdtsc
1382 sync_val_compare_and_swap
1383 "
1384 HAVE_LIST_CMDLINE="
1385 inline_asm
1386 symver
1387 yasm
1388 "
1389
1390 HAVE_LIST_PUB="
1391 bigendian
1392 fast_unaligned
1393 "
1394
1395 HEADERS_LIST="
1396 alsa_asoundlib_h
1397 altivec_h
1398 arpa_inet_h
1399 cdio_paranoia_h
1400 cdio_paranoia_paranoia_h
1401 dev_bktr_ioctl_bt848_h
1402 dev_bktr_ioctl_meteor_h
1403 dev_ic_bt8xx_h
1404 dev_video_bktr_ioctl_bt848_h
1405 dev_video_meteor_ioctl_meteor_h
1406 direct_h
1407 dlfcn_h
1408 d3d11_h
1409 dxva_h
1410 gsm_h
1411 io_h
1412 mach_mach_time_h
1413 machine_ioctl_bt848_h
1414 machine_ioctl_meteor_h
1415 malloc_h
1416 poll_h
1417 sndio_h
1418 soundcard_h
1419 sys_mman_h
1420 sys_param_h
1421 sys_resource_h
1422 sys_select_h
1423 sys_soundcard_h
1424 sys_time_h
1425 sys_un_h
1426 sys_videoio_h
1427 unistd_h
1428 valgrind_valgrind_h
1429 windows_h
1430 winsock2_h
1431 "
1432
1433 INTRINSICS_LIST="
1434 intrinsics_neon
1435 "
1436
1437 MATH_FUNCS="
1438 atanf
1439 atan2f
1440 cbrtf
1441 cosf
1442 exp2
1443 exp2f
1444 expf
1445 isinf
1446 isnan
1447 ldexpf
1448 llrint
1449 llrintf
1450 log2
1451 log2f
1452 log10f
1453 lrint
1454 lrintf
1455 powf
1456 rint
1457 round
1458 roundf
1459 sinf
1460 trunc
1461 truncf
1462 "
1463
1464 SYSTEM_FUNCS="
1465 aligned_malloc
1466 clock_gettime
1467 closesocket
1468 CommandLineToArgvW
1469 CoTaskMemFree
1470 CryptGenRandom
1471 dlopen
1472 fcntl
1473 flt_lim
1474 fork
1475 getaddrinfo
1476 gethrtime
1477 getopt
1478 GetProcessAffinityMask
1479 GetProcessMemoryInfo
1480 GetProcessTimes
1481 getrusage
1482 getservbyport
1483 GetSystemTimeAsFileTime
1484 gettimeofday
1485 gmtime_r
1486 inet_aton
1487 isatty
1488 jack_port_get_latency_range
1489 LoadLibrary
1490 localtime_r
1491 mach_absolute_time
1492 MapViewOfFile
1493 memalign
1494 mkstemp
1495 mmap
1496 mprotect
1497 nanosleep
1498 posix_memalign
1499 sched_getaffinity
1500 SetConsoleTextAttribute
1501 setmode
1502 setrlimit
1503 Sleep
1504 strerror_r
1505 sysconf
1506 sysctl
1507 usleep
1508 VirtualAlloc
1509 "
1510
1511 TOOLCHAIN_FEATURES="
1512 as_dn_directive
1513 as_func
1514 as_object_arch
1515 asm_mod_q
1516 attribute_may_alias
1517 attribute_packed
1518 ebp_available
1519 ebx_available
1520 gnu_as
1521 ibm_asm
1522 inline_asm_labels
1523 pragma_deprecated
1524 symver_asm_label
1525 symver_gnu_asm
1526 vfp_args
1527 xform_asm
1528 xmm_clobbers
1529 "
1530
1531 TYPES_LIST="
1532 CONDITION_VARIABLE_Ptr
1533 socklen_t
1534 struct_addrinfo
1535 struct_group_source_req
1536 struct_ip_mreq_source
1537 struct_ipv6_mreq
1538 struct_pollfd
1539 struct_rusage_ru_maxrss
1540 struct_sockaddr_in6
1541 struct_sockaddr_sa_len
1542 struct_sockaddr_storage
1543 struct_v4l2_frmivalenum_discrete
1544 "
1545
1546 HAVE_LIST="
1547 $ARCH_EXT_LIST
1548 $(add_suffix _external $ARCH_EXT_LIST)
1549 $(add_suffix _inline $ARCH_EXT_LIST)
1550 $ARCH_FEATURES
1551 $ATOMICS_LIST
1552 $BUILTIN_LIST
1553 $HAVE_LIST_CMDLINE
1554 $HAVE_LIST_PUB
1555 $HEADERS_LIST
1556 $INTRINSICS_LIST
1557 $MATH_FUNCS
1558 $SYSTEM_FUNCS
1559 $THREADS_LIST
1560 $TOOLCHAIN_FEATURES
1561 $TYPES_LIST
1562 atomics_native
1563 dos_paths
1564 dxva2_lib
1565 libc_msvcrt
1566 libdc1394_1
1567 libdc1394_2
1568 sdl
1569 section_data_rel_ro
1570 threads
1571 vaapi_x11
1572 vdpau_x11
1573 xlib
1574 "
1575
1576 # options emitted with CONFIG_ prefix but not available on the command line
1577 CONFIG_EXTRA="
1578 aandcttables
1579 ac3dsp
1580 audio_frame_queue
1581 audiodsp
1582 blockdsp
1583 bswapdsp
1584 cabac
1585 dvprofile
1586 faandct
1587 faanidct
1588 fdctdsp
1589 fmtconvert
1590 gcrypt
1591 gmp
1592 golomb
1593 gplv3
1594 h263dsp
1595 h264chroma
1596 h264dsp
1597 h264pred
1598 h264qpel
1599 hpeldsp
1600 huffman
1601 huffyuvdsp
1602 huffyuvencdsp
1603 idctdsp
1604 iirfilter
1605 imdct15
1606 intrax8
1607 jpegtables
1608 lgplv3
1609 lpc
1610 me_cmp
1611 mpeg_er
1612 mpegaudio
1613 mpegaudiodsp
1614 mpegvideo
1615 mpegvideoenc
1616 pixblockdsp
1617 qpeldsp
1618 qsv
1619 qsvdec
1620 qsvenc
1621 rangecoder
1622 riffdec
1623 riffenc
1624 rtpdec
1625 rtpenc_chain
1626 sinewin
1627 startcode
1628 tpeldsp
1629 videodsp
1630 vp3dsp
1631 wma_freqs
1632 "
1633
1634 CMDLINE_SELECT="
1635 $ARCH_EXT_LIST
1636 $CONFIG_LIST
1637 $HAVE_LIST_CMDLINE
1638 $THREADS_LIST
1639 asm
1640 cross_compile
1641 debug
1642 extra_warnings
1643 logging
1644 lto
1645 optimizations
1646 rpath
1647 "
1648
1649 PATHS_LIST="
1650 bindir
1651 datadir
1652 docdir
1653 incdir
1654 libdir
1655 mandir
1656 prefix
1657 shlibdir
1658 "
1659
1660 CMDLINE_SET="
1661 $PATHS_LIST
1662 ar
1663 arch
1664 as
1665 build_suffix
1666 cc
1667 cpu
1668 cross_prefix
1669 dep_cc
1670 env
1671 extra_version
1672 host_cc
1673 host_cflags
1674 host_ld
1675 host_ldflags
1676 host_libs
1677 host_os
1678 ld
1679 logfile
1680 malloc_prefix
1681 nm
1682 optflags
1683 pkg_config
1684 pkg_config_flags
1685 random_seed
1686 samples
1687 sysinclude
1688 sysroot
1689 target_exec
1690 target_os
1691 target_path
1692 target_samples
1693 toolchain
1694 "
1695
1696 CMDLINE_APPEND="
1697 extra_cflags
1698 host_cppflags
1699 "
1700
1701 # code dependency declarations
1702
1703 # architecture extensions
1704
1705 armv5te_deps="arm"
1706 armv6_deps="arm"
1707 armv6t2_deps="arm"
1708 armv8_deps="aarch64"
1709 neon_deps_any="aarch64 arm"
1710 intrinsics_neon_deps="neon"
1711 vfp_deps_any="aarch64 arm"
1712 vfpv3_deps="vfp"
1713
1714 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1715
1716 altivec_deps="ppc"
1717 ppc4xx_deps="ppc"
1718 vsx_deps="altivec"
1719 power8_deps="vsx"
1720
1721 cpunop_deps="i686"
1722 x86_64_select="i686"
1723 x86_64_suggest="fast_cmov"
1724
1725 amd3dnow_deps="mmx"
1726 amd3dnowext_deps="amd3dnow"
1727 i686_deps="x86"
1728 mmx_deps="x86"
1729 mmxext_deps="mmx"
1730 sse_deps="mmxext"
1731 sse2_deps="sse"
1732 sse3_deps="sse2"
1733 ssse3_deps="sse3"
1734 sse4_deps="ssse3"
1735 sse42_deps="sse4"
1736 avx_deps="sse42"
1737 xop_deps="avx"
1738 fma3_deps="avx"
1739 fma4_deps="avx"
1740 avx2_deps="avx"
1741
1742 mmx_external_deps="yasm"
1743 mmx_inline_deps="inline_asm"
1744 mmx_suggest="mmx_external mmx_inline"
1745
1746 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1747 eval dep=\$${ext}_deps
1748 eval ${ext}_external_deps='"${dep}_external"'
1749 eval ${ext}_inline_deps='"${dep}_inline"'
1750 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1751 done
1752
1753 aligned_stack_if_any="aarch64 ppc x86"
1754 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1755 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1756 fast_unaligned_if_any="aarch64 ppc x86"
1757 simd_align_16_if_any="altivec neon sse"
1758
1759 # system capabilities
1760 symver_if_any="symver_asm_label symver_gnu_asm"
1761 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1762
1763 # threading support
1764 atomics_gcc_if="sync_val_compare_and_swap"
1765 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1766 atomics_win32_if="MemoryBarrier"
1767 atomics_native_if_any="$ATOMICS_LIST"
1768 w32threads_deps="atomics_native"
1769 threads_if_any="$THREADS_LIST"
1770
1771 # subsystems
1772 dct_select="rdft"
1773 error_resilience_select="me_cmp"
1774 faandct_deps="faan fdctdsp"
1775 faanidct_deps="faan idctdsp"
1776 intrax8_select="error_resilience"
1777 mdct_select="fft"
1778 rdft_select="fft"
1779 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1780 mpeg_er_select="error_resilience"
1781 mpegaudio_select="mpegaudiodsp"
1782 mpegaudiodsp_select="dct"
1783 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1784 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1785 nvenc_deps_any="dlopen LoadLibrary"
1786 nvenc_extralibs='$ldl'
1787 qsvdec_select="qsv"
1788 qsvenc_select="qsv"
1789
1790 # decoders / encoders
1791 aac_decoder_select="imdct15 mdct sinewin"
1792 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1793 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1794 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1795 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1796 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1797 aic_decoder_select="golomb idctdsp"
1798 alac_encoder_select="lpc"
1799 als_decoder_select="bswapdsp"
1800 amrnb_decoder_select="lsp"
1801 amrwb_decoder_select="lsp"
1802 amv_decoder_select="sp5x_decoder"
1803 ape_decoder_select="bswapdsp"
1804 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1805 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1806 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1807 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1808 atrac1_decoder_select="mdct sinewin"
1809 atrac3_decoder_select="mdct"
1810 atrac3p_decoder_select="mdct sinewin"
1811 bink_decoder_select="blockdsp hpeldsp"
1812 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1813 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1814 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1815 cllc_decoder_select="bswapdsp"
1816 comfortnoise_encoder_select="lpc"
1817 cook_decoder_select="audiodsp mdct sinewin"
1818 cscd_decoder_select="lzo"
1819 cscd_decoder_suggest="zlib"
1820 dca_decoder_select="fmtconvert mdct"
1821 dnxhd_decoder_select="blockdsp idctdsp"
1822 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1823 dvvideo_decoder_select="dvprofile idctdsp"
1824 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1825 dxa_decoder_deps="zlib"
1826 eac3_decoder_select="ac3_decoder"
1827 eac3_encoder_select="ac3_encoder"
1828 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1829 eatgq_decoder_select="aandcttables idctdsp"
1830 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1831 exr_decoder_deps="zlib"
1832 ffv1_decoder_select="golomb rangecoder"
1833 ffv1_encoder_select="rangecoder"
1834 ffvhuff_decoder_select="huffyuv_decoder"
1835 ffvhuff_encoder_select="huffyuv_encoder"
1836 fic_decoder_select="golomb"
1837 flac_decoder_select="golomb"
1838 flac_encoder_select="bswapdsp golomb lpc"
1839 flashsv_decoder_deps="zlib"
1840 flashsv_encoder_deps="zlib"
1841 flashsv2_decoder_deps="zlib"
1842 flv_decoder_select="h263_decoder"
1843 flv_encoder_select="h263_encoder"
1844 fourxm_decoder_select="blockdsp bswapdsp"
1845 fraps_decoder_select="bswapdsp huffman"
1846 g2m_decoder_deps="zlib"
1847 g2m_decoder_select="blockdsp idctdsp jpegtables"
1848 h261_decoder_select="mpeg_er mpegvideo"
1849 h261_encoder_select="aandcttables mpegvideoenc"
1850 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1851 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1852 h263i_decoder_select="h263_decoder"
1853 h263p_encoder_select="h263_encoder"
1854 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1855 h264_decoder_suggest="error_resilience"
1856 h264_nvenc_encoder_deps="nvenc"
1857 h264_qsv_decoder_deps="libmfx"
1858 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1859 h264_qsv_encoder_deps="libmfx"
1860 h264_qsv_encoder_select="qsvenc"
1861 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1862 hevc_nvenc_encoder_deps="nvenc"
1863 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1864 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1865 iac_decoder_select="imc_decoder"
1866 imc_decoder_select="bswapdsp fft mdct sinewin"
1867 indeo3_decoder_select="hpeldsp"
1868 interplay_video_decoder_select="hpeldsp"
1869 jpegls_decoder_select="golomb mjpeg_decoder"
1870 jpegls_encoder_select="golomb"
1871 jv_decoder_select="blockdsp"
1872 lagarith_decoder_select="huffyuvdsp"
1873 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1874 loco_decoder_select="golomb"
1875 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1876 metasound_decoder_select="lsp mdct sinewin"
1877 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1878 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1879 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1880 mjpegb_decoder_select="mjpeg_decoder"
1881 mlp_decoder_select="mlp_parser"
1882 motionpixels_decoder_select="bswapdsp"
1883 mp1_decoder_select="mpegaudio"
1884 mp1float_decoder_select="mpegaudio"
1885 mp2_decoder_select="mpegaudio"
1886 mp2float_decoder_select="mpegaudio"
1887 mp3_decoder_select="mpegaudio"
1888 mp3adu_decoder_select="mpegaudio"
1889 mp3adufloat_decoder_select="mpegaudio"
1890 mp3float_decoder_select="mpegaudio"
1891 mp3on4_decoder_select="mpegaudio"
1892 mp3on4float_decoder_select="mpegaudio"
1893 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1894 mpc8_decoder_select="mpegaudiodsp"
1895 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1896 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1897 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1898 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1899 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1900 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1901 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1902 mpeg4_encoder_select="h263_encoder"
1903 msmpeg4v1_decoder_select="h263_decoder"
1904 msmpeg4v2_decoder_select="h263_decoder"
1905 msmpeg4v2_encoder_select="h263_encoder"
1906 msmpeg4v3_decoder_select="h263_decoder"
1907 msmpeg4v3_encoder_select="h263_encoder"
1908 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1909 mxpeg_decoder_select="mjpeg_decoder"
1910 nellymoser_decoder_select="mdct sinewin"
1911 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1912 nuv_decoder_select="idctdsp lzo"
1913 on2avc_decoder_select="mdct"
1914 opus_decoder_deps="avresample"
1915 opus_decoder_select="imdct15"
1916 png_decoder_deps="zlib"
1917 png_encoder_deps="zlib"
1918 png_encoder_select="huffyuvencdsp"
1919 prores_decoder_select="idctdsp"
1920 prores_encoder_select="fdctdsp"
1921 qcelp_decoder_select="lsp"
1922 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1923 ra_144_encoder_select="audio_frame_queue lpc"
1924 ralf_decoder_select="golomb"
1925 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1926 rv10_encoder_select="h263_encoder"
1927 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1928 rv20_encoder_select="h263_encoder"
1929 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1930 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1931 shorten_decoder_select="golomb"
1932 sipr_decoder_select="lsp"
1933 sp5x_decoder_select="mjpeg_decoder"
1934 svq1_decoder_select="hpeldsp"
1935 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1936 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1937 svq3_decoder_suggest="zlib"
1938 tak_decoder_select="audiodsp"
1939 tdsc_decoder_deps="zlib"
1940 tdsc_decoder_select="mjpeg_decoder"
1941 theora_decoder_select="vp3_decoder"
1942 thp_decoder_select="mjpeg_decoder"
1943 tiff_decoder_suggest="zlib"
1944 tiff_encoder_suggest="zlib"
1945 truehd_decoder_select="mlp_decoder"
1946 truemotion2_decoder_select="bswapdsp"
1947 truespeech_decoder_select="bswapdsp"
1948 tscc_decoder_deps="zlib"
1949 twinvq_decoder_select="mdct lsp sinewin"
1950 utvideo_decoder_select="bswapdsp"
1951 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1952 vble_decoder_select="huffyuvdsp"
1953 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1954 vc1image_decoder_select="vc1_decoder"
1955 vorbis_decoder_select="mdct"
1956 vorbis_encoder_select="mdct"
1957 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1958 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1959 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1960 vp6a_decoder_select="vp6_decoder"
1961 vp6f_decoder_select="vp6_decoder"
1962 vp7_decoder_select="h264pred videodsp"
1963 vp8_decoder_select="h264pred videodsp"
1964 vp9_decoder_select="videodsp"
1965 webp_decoder_select="vp8_decoder"
1966 wmapro_decoder_select="mdct sinewin wma_freqs"
1967 wmav1_decoder_select="mdct sinewin wma_freqs"
1968 wmav1_encoder_select="mdct sinewin wma_freqs"
1969 wmav2_decoder_select="mdct sinewin wma_freqs"
1970 wmav2_encoder_select="mdct sinewin wma_freqs"
1971 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1972 wmv1_decoder_select="h263_decoder"
1973 wmv1_encoder_select="h263_encoder"
1974 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1975 wmv2_encoder_select="h263_encoder"
1976 wmv3_decoder_select="vc1_decoder"
1977 wmv3image_decoder_select="wmv3_decoder"
1978 zerocodec_decoder_deps="zlib"
1979 zlib_decoder_deps="zlib"
1980 zlib_encoder_deps="zlib"
1981 zmbv_decoder_deps="zlib"
1982 zmbv_encoder_deps="zlib"
1983
1984 # hardware accelerators
1985 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
1986 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
1987 vaapi_deps="va_va_h"
1988 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1989 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1990 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1991
1992 h263_vaapi_hwaccel_deps="vaapi"
1993 h263_vaapi_hwaccel_select="h263_decoder"
1994 h263_vdpau_hwaccel_deps="vdpau"
1995 h263_vdpau_hwaccel_select="h263_decoder"
1996 h264_d3d11va_hwaccel_deps="d3d11va"
1997 h264_d3d11va_hwaccel_select="h264_decoder"
1998 h264_dxva2_hwaccel_deps="dxva2"
1999 h264_dxva2_hwaccel_select="h264_decoder"
2000 h264_mmal_decoder_deps="mmal"
2001 h264_mmal_hwaccel_deps="mmal"
2002 h264_mmal_decoder_select="h264_decoder"
2003 h264_mmal_encoder_deps="mmal"
2004 h264_qsv_hwaccel_deps="libmfx"
2005 h264_vaapi_hwaccel_deps="vaapi"
2006 h264_vaapi_hwaccel_select="h264_decoder"
2007 h264_vda_hwaccel_deps="vda"
2008 h264_vda_hwaccel_select="h264_decoder"
2009 h264_vda_old_hwaccel_deps="vda"
2010 h264_vda_old_hwaccel_select="h264_decoder"
2011 h264_vdpau_hwaccel_deps="vdpau"
2012 h264_vdpau_hwaccel_select="h264_decoder"
2013 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2014 hevc_d3d11va_hwaccel_select="hevc_decoder"
2015 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2016 hevc_dxva2_hwaccel_select="hevc_decoder"
2017 mpeg1_vdpau_hwaccel_deps="vdpau"
2018 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2019 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2020 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2021 mpeg2_dxva2_hwaccel_deps="dxva2"
2022 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2023 mpeg2_vaapi_hwaccel_deps="vaapi"
2024 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2025 mpeg2_vdpau_hwaccel_deps="vdpau"
2026 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2027 mpeg4_vaapi_hwaccel_deps="vaapi"
2028 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2029 mpeg4_vdpau_hwaccel_deps="vdpau"
2030 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2031 vc1_d3d11va_hwaccel_deps="d3d11va"
2032 vc1_d3d11va_hwaccel_select="vc1_decoder"
2033 vc1_dxva2_hwaccel_deps="dxva2"
2034 vc1_dxva2_hwaccel_select="vc1_decoder"
2035 vc1_vaapi_hwaccel_deps="vaapi"
2036 vc1_vaapi_hwaccel_select="vc1_decoder"
2037 vc1_vdpau_hwaccel_deps="vdpau"
2038 vc1_vdpau_hwaccel_select="vc1_decoder"
2039 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2040 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2041 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2042 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2043
2044 # parsers
2045 h264_parser_select="h264_decoder"
2046 mpegvideo_parser_select="mpegvideo"
2047 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2048 vc1_parser_select="mpegvideo startcode vc1_decoder"
2049
2050 # bitstream_filters
2051 mjpeg2jpeg_bsf_select="jpegtables"
2052
2053 # external libraries
2054 libdcadec_decoder_deps="libdcadec"
2055 libfaac_encoder_deps="libfaac"
2056 libfaac_encoder_select="audio_frame_queue"
2057 libfdk_aac_decoder_deps="libfdk_aac"
2058 libfdk_aac_encoder_deps="libfdk_aac"
2059 libfdk_aac_encoder_select="audio_frame_queue"
2060 libgsm_decoder_deps="libgsm"
2061 libgsm_encoder_deps="libgsm"
2062 libgsm_ms_decoder_deps="libgsm"
2063 libgsm_ms_encoder_deps="libgsm"
2064 libilbc_decoder_deps="libilbc"
2065 libilbc_encoder_deps="libilbc"
2066 libmp3lame_encoder_deps="libmp3lame"
2067 libmp3lame_encoder_select="audio_frame_queue"
2068 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2069 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2070 libopencore_amrnb_encoder_select="audio_frame_queue"
2071 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2072 libopenh264_encoder_deps="libopenh264"
2073 libopenjpeg_decoder_deps="libopenjpeg"
2074 libopenjpeg_encoder_deps="libopenjpeg"
2075 libopus_decoder_deps="libopus"
2076 libopus_encoder_deps="libopus"
2077 libopus_encoder_select="audio_frame_queue"
2078 libschroedinger_decoder_deps="libschroedinger"
2079 libschroedinger_encoder_deps="libschroedinger"
2080 libspeex_decoder_deps="libspeex"
2081 libspeex_encoder_deps="libspeex"
2082 libspeex_encoder_select="audio_frame_queue"
2083 libtheora_encoder_deps="libtheora"
2084 libtwolame_encoder_deps="libtwolame"
2085 libvo_aacenc_encoder_deps="libvo_aacenc"
2086 libvo_aacenc_encoder_select="audio_frame_queue"
2087 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2088 libvorbis_encoder_deps="libvorbis"
2089 libvorbis_encoder_select="audio_frame_queue"
2090 libvpx_vp8_decoder_deps="libvpx"
2091 libvpx_vp8_encoder_deps="libvpx"
2092 libvpx_vp9_decoder_deps="libvpx"
2093 libvpx_vp9_encoder_deps="libvpx"
2094 libwavpack_encoder_deps="libwavpack"
2095 libwebp_encoder_deps="libwebp"
2096 libx264_encoder_deps="libx264"
2097 libx265_encoder_deps="libx265"
2098 libxavs_encoder_deps="libxavs"
2099 libxvid_encoder_deps="libxvid"
2100
2101 # demuxers / muxers
2102 ac3_demuxer_select="ac3_parser"
2103 asf_demuxer_select="riffdec"
2104 asf_muxer_select="riffenc"
2105 asf_stream_muxer_select="asf_muxer"
2106 avi_demuxer_select="riffdec"
2107 avi_muxer_select="riffenc"
2108 avisynth_demuxer_deps="avisynth"
2109 avisynth_demuxer_select="riffdec"
2110 caf_demuxer_select="riffdec"
2111 dash_muxer_select="mp4_muxer"
2112 dirac_demuxer_select="dirac_parser"
2113 dv_demuxer_select="dvprofile"
2114 dv_muxer_select="dvprofile"
2115 dxa_demuxer_select="riffdec"
2116 eac3_demuxer_select="ac3_parser"
2117 f4v_muxer_select="mov_muxer"
2118 flac_demuxer_select="flac_parser"
2119 hds_muxer_select="flv_muxer"
2120 hls_muxer_select="mpegts_muxer"
2121 ipod_muxer_select="mov_muxer"
2122 ismv_muxer_select="mov_muxer"
2123 matroska_audio_muxer_select="matroska_muxer"
2124 matroska_demuxer_select="riffdec"
2125 matroska_demuxer_suggest="bzlib lzo zlib"
2126 matroska_muxer_select="riffenc"
2127 mmf_muxer_select="riffenc"
2128 mov_demuxer_select="riffdec"
2129 mov_demuxer_suggest="zlib"
2130 mov_muxer_select="riffenc rtpenc_chain"
2131 mp3_demuxer_select="mpegaudio_parser"
2132 mp4_muxer_select="mov_muxer"
2133 mpegts_muxer_select="adts_muxer latm_muxer"
2134 mpegtsraw_demuxer_select="mpegts_demuxer"
2135 mxf_d10_muxer_select="mxf_muxer"
2136 nut_muxer_select="riffenc"
2137 nuv_demuxer_select="riffdec"
2138 oga_muxer_select="ogg_muxer"
2139 ogg_demuxer_select="golomb"
2140 opus_muxer_select="ogg_muxer"
2141 psp_muxer_select="mov_muxer"
2142 rtp_demuxer_select="sdp_demuxer"
2143 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2144 rtsp_demuxer_select="http_protocol rtpdec"
2145 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2146 sap_demuxer_select="sdp_demuxer"
2147 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2148 sdp_demuxer_select="rtpdec"
2149 smoothstreaming_muxer_select="ismv_muxer"
2150 spdif_muxer_select="aac_parser"
2151 spx_muxer_select="ogg_muxer"
2152 tak_demuxer_select="tak_parser"
2153 tg2_muxer_select="mov_muxer"
2154 tgp_muxer_select="mov_muxer"
2155 w64_demuxer_select="wav_demuxer"
2156 wav_demuxer_select="riffdec"
2157 wav_muxer_select="riffenc"
2158 webm_muxer_select="riffenc"
2159 wtv_demuxer_select="riffdec"
2160 xmv_demuxer_select="riffdec"
2161 xwma_demuxer_select="riffdec"
2162
2163 # indevs / outdevs
2164 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2165 alsa_outdev_deps="alsa_asoundlib_h"
2166 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2167 dv1394_indev_deps="dv1394"
2168 dv1394_indev_select="dv_demuxer"
2169 fbdev_indev_deps="linux_fb_h"
2170 jack_indev_deps="jack_jack_h pthreads"
2171 libcdio_indev_deps="libcdio"
2172 libdc1394_indev_deps="libdc1394"
2173 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2174 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2175 pulse_indev_deps="libpulse"
2176 sndio_indev_deps="sndio_h"
2177 sndio_outdev_deps="sndio_h"
2178 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2179 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2180 vfwcap_indev_extralibs="-lavicap32"
2181 x11grab_indev_deps="x11grab"
2182 x11grab_xcb_indev_deps="libxcb"
2183
2184 # protocols
2185 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2186 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2187 ffrtmpcrypt_protocol_select="tcp_protocol"
2188 ffrtmphttp_protocol_deps="!librtmp_protocol"
2189 ffrtmphttp_protocol_select="http_protocol"
2190 gopher_protocol_select="network"
2191 http_protocol_select="tcp_protocol"
2192 httpproxy_protocol_select="tcp_protocol"
2193 https_protocol_select="tls_protocol"
2194 icecast_protocol_select="http_protocol"
2195 librtmp_protocol_deps="librtmp"
2196 librtmpe_protocol_deps="librtmp"
2197 librtmps_protocol_deps="librtmp"
2198 librtmpt_protocol_deps="librtmp"
2199 librtmpte_protocol_deps="librtmp"
2200 mmsh_protocol_select="http_protocol"
2201 mmst_protocol_select="network"
2202 rtmp_protocol_deps="!librtmp_protocol"
2203 rtmp_protocol_select="tcp_protocol"
2204 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2205 rtmps_protocol_deps="!librtmp_protocol"
2206 rtmps_protocol_select="tls_protocol"
2207 rtmpt_protocol_select="ffrtmphttp_protocol"
2208 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2209 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2210 rtp_protocol_select="udp_protocol"
2211 sctp_protocol_deps="struct_sctp_event_subscribe"
2212 sctp_protocol_select="network"
2213 srtp_protocol_select="rtp_protocol"
2214 tcp_protocol_select="network"
2215 tls_gnutls_protocol_deps="gnutls"
2216 tls_gnutls_protocol_select="tcp_protocol"
2217 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2218 tls_openssl_protocol_select="tcp_protocol"
2219 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2220 udp_protocol_select="network"
2221 unix_protocol_deps="sys_un_h"
2222 unix_protocol_select="network"
2223
2224 # filters
2225 blackframe_filter_deps="gpl"
2226 boxblur_filter_deps="gpl"
2227 bs2b_filter_deps="libbs2b"
2228 cropdetect_filter_deps="gpl"
2229 delogo_filter_deps="gpl"
2230 drawtext_filter_deps="libfreetype"
2231 frei0r_filter_deps="frei0r dlopen"
2232 frei0r_filter_extralibs='$ldl'
2233 frei0r_src_filter_deps="frei0r dlopen"
2234 frei0r_src_filter_extralibs='$ldl'
2235 hqdn3d_filter_deps="gpl"
2236 interlace_filter_deps="gpl"
2237 ocv_filter_deps="libopencv"
2238 resample_filter_deps="avresample"
2239 scale_filter_deps="swscale"
2240
2241 # examples
2242 avcodec_example_deps="avcodec avutil"
2243 filter_audio_example_deps="avfilter avutil"
2244 metadata_example_deps="avformat avutil"
2245 output_example_deps="avcodec avformat avutil swscale"
2246 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2247 transcode_aac_example_deps="avcodec avformat avresample"
2248
2249 # libraries, in linking order
2250 avcodec_deps="avutil"
2251 avdevice_deps="avformat avcodec avutil"
2252 avfilter_deps="avutil"
2253 avformat_deps="avcodec avutil"
2254 avresample_deps="avutil"
2255 swscale_deps="avutil"
2256
2257 # programs
2258 avconv_deps="avcodec avfilter avformat avresample swscale"
2259 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2260 fps_filter null_filter resample_filter scale_filter
2261 setpts_filter trim_filter"
2262 avplay_deps="avcodec avformat avresample swscale sdl"
2263 avplay_libs='$sdl_libs'
2264 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2265 avprobe_deps="avcodec avformat"
2266
2267 # documentation
2268 pod2man_deps="doc"
2269 texi2html_deps="doc"
2270
2271 # default parameters
2272
2273 logfile="config.log"
2274
2275 # installation paths
2276 prefix_default="/usr/local"
2277 bindir_default='${prefix}/bin'
2278 datadir_default='${prefix}/share/avconv'
2279 docdir_default='${prefix}/share/doc/libav'
2280 incdir_default='${prefix}/include'
2281 libdir_default='${prefix}/lib'
2282 mandir_default='${prefix}/share/man'
2283 shlibdir_default="$libdir_default"
2284
2285 # toolchain
2286 ar_default="ar"
2287 cc_default="gcc"
2288 host_cc_default="gcc"
2289 cp_f="cp -f"
2290 ln_s="ln -s -f"
2291 nm_default="nm -g"
2292 objformat="elf"
2293 pkg_config_default=pkg-config
2294 ranlib="ranlib"
2295 strip="strip"
2296 yasmexe="yasm"
2297
2298 # machine
2299 arch_default=$(uname -m)
2300 cpu="generic"
2301 intrinsics="none"
2302
2303 # OS
2304 target_os_default=$(tolower $(uname -s))
2305 host_os=$target_os_default
2306
2307 # configurable options
2308 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2309
2310 enable asm
2311 enable debug
2312 enable doc
2313 enable faan faandct faanidct
2314 enable optimizations
2315 enable safe_bitstream_reader
2316 enable static
2317 enable swscale_alpha
2318 enable valgrind_backtrace
2319
2320 # By default, enable only those hwaccels that have no external dependencies.
2321 enable d3d11va dxva2 vda vdpau
2322
2323 # build settings
2324 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2325 LIBPREF="lib"
2326 LIBSUF=".a"
2327 FULLNAME='$(NAME)$(BUILDSUF)'
2328 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2329 SLIBPREF="lib"
2330 SLIBSUF=".so"
2331 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2332 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2333 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2334 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2335 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2336 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2337
2338 asflags_filter=echo
2339 cflags_filter=echo
2340 ldflags_filter=echo
2341
2342 AS_C='-c'
2343 AS_O='-o $@'
2344 CC_C='-c'
2345 CC_E='-E -o $@'
2346 CC_O='-o $@'
2347 LD_O='-o $@'
2348 LD_LIB='-l%'
2349 LD_PATH='-L'
2350 HOSTCC_C='-c'
2351 HOSTCC_E='-E -o $@'
2352 HOSTCC_O='-o $@'
2353 HOSTLD_O='-o $@'
2354
2355 host_libs='-lm'
2356 host_cflags_filter=echo
2357 host_ldflags_filter=echo
2358
2359 target_path='$(CURDIR)'
2360
2361 # since the object filename is not given with the -MM flag, the compiler
2362 # is only able to print the basename, and we must add the path ourselves
2363 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2364 DEPFLAGS='-MM'
2365
2366 # find source path
2367 if test -f configure; then
2368 source_path=.
2369 else
2370 source_path=$(cd $(dirname "$0"); pwd)
2371 echo "$source_path" | grep -q '[[:blank:]]' &&
2372 die "Out of tree builds are impossible with whitespace in source path."
2373 test -e "$source_path/config.h" &&
2374 die "Out of tree builds are impossible with config.h in source dir."
2375 fi
2376
2377 for v in "$@"; do
2378 r=${v#*=}
2379 l=${v%"$r"}
2380 r=$(sh_quote "$r")
2381 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2382 done
2383
2384 find_things(){
2385 thing=$1
2386 pattern=$2
2387 file=$source_path/$3
2388 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2389 }
2390
2391 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2392 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2393 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2394 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2395 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2396 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2397 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2398 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2399 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2400 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2401 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2402
2403 ALL_COMPONENTS="
2404 $BSF_LIST
2405 $DECODER_LIST
2406 $DEMUXER_LIST
2407 $ENCODER_LIST
2408 $FILTER_LIST
2409 $HWACCEL_LIST
2410 $INDEV_LIST
2411 $MUXER_LIST
2412 $OUTDEV_LIST
2413 $PARSER_LIST
2414 $PROTOCOL_LIST
2415 "
2416
2417 for n in $COMPONENT_LIST; do
2418 v=$(toupper ${n%s})_LIST
2419 eval enable \$$v
2420 eval ${n}_if_any="\$$v"
2421 done
2422
2423 enable $ARCH_EXT_LIST
2424
2425 die_unknown(){
2426 echo "Unknown option \"$1\"."
2427 echo "See $0 --help for available options."
2428 exit 1
2429 }
2430
2431 print_3_columns() {
2432 cat | tr ' ' '\n' | sort | pr -r -3 -t
2433 }
2434
2435 show_list() {
2436 suffix=_$1
2437 shift
2438 echo $* | sed s/$suffix//g | print_3_columns
2439 exit 0
2440 }
2441
2442 rand_list(){
2443 IFS=', '
2444 set -- $*
2445 unset IFS
2446 for thing; do
2447 comp=${thing%:*}
2448 prob=${thing#$comp}
2449 prob=${prob#:}
2450 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2451 echo "prob ${prob:-0.5}"
2452 printf '%s\n' $comp
2453 done
2454 }
2455
2456 do_random(){
2457 action=$1
2458 shift
2459 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2460 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2461 }
2462
2463 for opt do
2464 optval="${opt#*=}"
2465 case "$opt" in
2466 --extra-ldflags=*)
2467 add_ldflags $optval
2468 ;;
2469 --extra-ldexeflags=*)
2470 add_ldexeflags $optval
2471 ;;
2472 --extra-libs=*)
2473 add_extralibs $optval
2474 ;;
2475 --disable-devices)
2476 disable $INDEV_LIST $OUTDEV_LIST
2477 ;;
2478 --enable-debug=*)
2479 debuglevel="$optval"
2480 ;;
2481 --disable-programs)
2482 disable $PROGRAM_LIST
2483 ;;
2484 --disable-everything)
2485 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2486 ;;
2487 --disable-all)
2488 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2489 disable $LIBRARY_LIST $PROGRAM_LIST doc
2490 ;;
2491 --enable-random|--disable-random)
2492 action=${opt%%-random}
2493 do_random ${action#--} $COMPONENT_LIST
2494 ;;
2495 --enable-random=*|--disable-random=*)
2496 action=${opt%%-random=*}
2497 do_random ${action#--} $optval
2498 ;;
2499 --enable-*=*|--disable-*=*)
2500 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2501 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2502 eval list=\$$(toupper $thing)_LIST
2503 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2504 $action $(filter "$name" $list)
2505 ;;
2506 --enable-avserver|--disable-avserver*)
2507 warn "avserver has been removed, the ${opt} option is only"\
2508 "provided for compatibility and will be removed in the future"
2509 ;;
2510 --enable-?*|--disable-?*)
2511 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2512 if is_in $option $COMPONENT_LIST; then
2513 test $action = disable && action=unset
2514 eval $action \$$(toupper ${option%s})_LIST
2515 elif is_in $option $CMDLINE_SELECT; then
2516 $action $option
2517 else
2518 die_unknown $opt
2519 fi
2520 ;;
2521 --list-*)
2522 NAME="${opt#--list-}"
2523 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2524 NAME=${NAME%s}
2525 eval show_list $NAME \$$(toupper $NAME)_LIST
2526 ;;
2527 --help|-h) show_help
2528 ;;
2529 *)
2530 optname="${opt%%=*}"
2531 optname="${optname#--}"
2532 optname=$(echo "$optname" | sed 's/-/_/g')
2533 if is_in $optname $CMDLINE_SET; then
2534 eval $optname='$optval'
2535 elif is_in $optname $CMDLINE_APPEND; then
2536 append $optname "$optval"
2537 else
2538 die_unknown $opt
2539 fi
2540 ;;
2541 esac
2542 done
2543
2544 for e in $env; do
2545 eval "export $e"
2546 done
2547
2548 disabled logging && logfile=/dev/null
2549
2550 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2551 set >> $logfile
2552
2553 case "$toolchain" in
2554 clang-asan)
2555 cc_default="clang"
2556 add_cflags -fsanitize=address
2557 add_ldflags -fsanitize=address
2558 ;;
2559 clang-tsan)
2560 cc_default="clang"
2561 add_cflags -fsanitize=thread -pie
2562 add_ldflags -fsanitize=thread -pie
2563 ;;
2564 clang-usan)
2565 cc_default="clang"
2566 add_cflags -fsanitize=undefined -O1
2567 add_ldflags -fsanitize=undefined
2568 ;;
2569 gcc-asan)
2570 cc_default="gcc"
2571 add_cflags -fsanitize=address
2572 add_ldflags -fsanitize=address
2573 ;;
2574 gcc-tsan)
2575 cc_default="gcc"
2576 add_cflags -fsanitize=thread -pie -fPIC
2577 add_ldflags -fsanitize=thread -pie -fPIC
2578 ;;
2579 gcc-usan)
2580 cc_default="gcc"
2581 add_cflags -fsanitize=undefined
2582 add_ldflags -fsanitize=undefined
2583 ;;
2584 valgrind-massif)
2585 target_exec_default="valgrind"
2586 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2587 ;;
2588 valgrind-memcheck)
2589 target_exec_default="valgrind"
2590 target_exec_args="--track-origins=yes --leak-check=full"
2591 ;;
2592 msvc)
2593 # Check whether the current MSVC version needs the C99 converter.
2594 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2595 # support enough of C99 to build libav. Default to the new
2596 # behaviour if the regexp was unable to match anything, since this
2597 # successfully parses the version number of existing supported
2598 # versions that require the converter (MSVC 2010 and 2012).
2599 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2600 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2601 cc_default="cl"
2602 else
2603 cc_default="c99wrap cl"
2604 fi
2605 ld_default="link"
2606 nm_default="dumpbin -symbols"
2607 ar_default="lib"
2608 target_os_default="win32"
2609 # Use a relative path for TMPDIR. This makes sure all the
2610 # ffconf temp files are written with a relative path, avoiding
2611 # issues with msys/win32 path conversion for MSVC parameters
2612 # such as -Fo<file> or -out:<file>.
2613 TMPDIR=.
2614 ;;
2615 icl)
2616 cc_default="icl"
2617 ld_default="xilink"
2618 nm_default="dumpbin -symbols"
2619 ar_default="xilib"
2620 target_os_default="win32"
2621 TMPDIR=.
2622 ;;
2623 gcov)
2624 add_cflags -fprofile-arcs -ftest-coverage
2625 add_ldflags -fprofile-arcs -ftest-coverage
2626 ;;
2627 hardened)
2628 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2629 add_cflags -fno-strict-overflow -fstack-protector-all
2630 add_ldflags -Wl,-z,relro -Wl,-z,now
2631 ;;
2632 ?*)
2633 die "Unknown toolchain $toolchain"
2634 ;;
2635 esac
2636
2637 test -n "$cross_prefix" && enable cross_compile
2638
2639 if enabled cross_compile; then
2640 test -n "$arch" && test -n "$target_os" ||
2641 die "Must specify target arch and OS when cross-compiling"
2642 fi
2643
2644 ar_default="${cross_prefix}${ar_default}"
2645 cc_default="${cross_prefix}${cc_default}"
2646 nm_default="${cross_prefix}${nm_default}"
2647 pkg_config_default="${cross_prefix}${pkg_config_default}"
2648 ranlib="${cross_prefix}${ranlib}"
2649 strip="${cross_prefix}${strip}"
2650
2651 sysinclude_default="${sysroot}/usr/include"
2652
2653 set_default arch cc pkg_config sysinclude target_exec target_os
2654 enabled cross_compile || host_cc_default=$cc
2655 set_default host_cc
2656
2657 if ! $pkg_config --version >/dev/null 2>&1; then
2658 warn "$pkg_config not found, library detection may fail."
2659 pkg_config=false
2660 fi
2661
2662 exesuf() {
2663 case $1 in
2664 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2665 esac
2666 }
2667
2668 EXESUF=$(exesuf $target_os)
2669 HOSTEXESUF=$(exesuf $host_os)
2670
2671 # set temporary file name
2672 : ${TMPDIR:=$TEMPDIR}
2673 : ${TMPDIR:=$TMP}
2674 : ${TMPDIR:=/tmp}
2675
2676 if ! check_cmd mktemp -u XXXXXX; then
2677 # simple replacement for missing mktemp
2678 # NOT SAFE FOR GENERAL USE
2679 mktemp(){
2680 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2681 }
2682 fi
2683
2684 tmpfile(){
2685 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2686 (set -C; exec > $tmp) 2>/dev/null ||
2687 die "Unable to create temporary file in $TMPDIR."
2688 append TMPFILES $tmp
2689 eval $1=$tmp
2690 }
2691
2692 trap 'rm -f -- $TMPFILES' EXIT
2693
2694 tmpfile TMPASM .asm
2695 tmpfile TMPC .c
2696 tmpfile TMPE $EXESUF
2697 tmpfile TMPH .h
2698 tmpfile TMPO .o
2699 tmpfile TMPS .S
2700 tmpfile TMPSH .sh
2701 tmpfile TMPV .ver
2702
2703 unset -f mktemp
2704
2705 chmod +x $TMPE
2706
2707 # make sure we can execute files in $TMPDIR
2708 cat > $TMPSH 2>> $logfile <<EOF
2709 #! /bin/sh
2710 EOF
2711 chmod +x $TMPSH >> $logfile 2>&1
2712 if ! $TMPSH >> $logfile 2>&1; then
2713 cat <<EOF
2714 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2715 variable to another directory and make sure that it is not mounted noexec.
2716 EOF
2717 die "Sanity test failed."
2718 fi
2719
2720 armasm_flags(){
2721 for flag; do
2722 case $flag in
2723 # Filter out MSVC cl.exe options from cflags that shouldn't
2724 # be passed to gas-preprocessor
2725 -M[TD]*) ;;
2726 *) echo $flag ;;
2727 esac
2728 done
2729 }
2730
2731 ccc_flags(){
2732 for flag; do
2733 case $flag in
2734 -std=c99) echo -c99 ;;
2735 -mcpu=*) echo -arch ${flag#*=} ;;
2736 -mieee) echo -ieee ;;
2737 -O*|-fast) echo $flag ;;
2738 -fno-math-errno) echo -assume nomath_errno ;;
2739 -g) echo -g3 ;;
2740 -Wall) echo -msg_enable level2 ;;
2741 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2742 -Wl,*) echo $flag ;;
2743 -f*|-W*) ;;
2744 *) echo $flag ;;
2745 esac
2746 done
2747 }
2748
2749 cparser_flags(){
2750 for flag; do
2751 case $flag in
2752 -Wno-switch) echo -Wno-switch-enum ;;
2753 -Wno-format-zero-length) ;;
2754 -Wdisabled-optimization) ;;
2755 -Wno-pointer-sign) echo -Wno-other ;;
2756 *) echo $flag ;;
2757 esac
2758 done
2759 }
2760
2761 msvc_common_flags(){
2762 for flag; do
2763 case $flag in
2764 # In addition to specifying certain flags under the compiler
2765 # specific filters, they must be specified here as well or else the
2766 # generic catch all at the bottom will print the original flag.
2767 -Wall) ;;
2768 -std=c99) ;;
2769 # Common flags
2770 -fomit-frame-pointer) ;;
2771 -g) echo -Z7 ;;
2772 -fno-math-errno) ;;
2773 -fno-common) ;;
2774 -fno-signed-zeros) ;;
2775 -fPIC) ;;
2776 -mthumb) ;;
2777 -march=*) ;;
2778 -lz) echo zlib.lib ;;
2779 -lavifil32) echo vfw32.lib ;;
2780 -lavicap32) echo vfw32.lib user32.lib ;;
2781 -l*) echo ${flag#-l}.lib ;;
2782 -L*) echo -libpath:${flag#-L} ;;
2783 *) echo $flag ;;
2784 esac
2785 done
2786 }
2787
2788 msvc_flags(){
2789 msvc_common_flags "$@"
2790 for flag; do
2791 case $flag in
2792 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2793 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2794 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2795 -wd4273 -wd4554 -wd4701 ;;
2796 esac
2797 done
2798 }
2799
2800 icl_flags(){
2801 msvc_common_flags "$@"
2802 for flag; do
2803 case $flag in
2804 # Despite what Intel's documentation says -Wall, which is supported
2805 # on Windows, does enable remarks so disable them here.
2806 -Wall) echo $flag -Qdiag-disable:remark ;;
2807 -std=c99) echo -Qstd=c99 ;;
2808 esac
2809 done
2810 }
2811
2812 pgi_flags(){
2813 for flag; do
2814 case $flag in
2815 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2816 -fomit-frame-pointer) echo -Mnoframe ;;
2817 -g) echo -gopt ;;
2818 *) echo $flag ;;
2819 esac
2820 done
2821 }
2822
2823 suncc_flags(){
2824 for flag; do
2825 case $flag in
2826 -march=*|-mcpu=*)
2827 case "${flag#*=}" in
2828 native) echo -xtarget=native ;;
2829 v9|niagara) echo -xarch=sparc ;;
2830 ultrasparc) echo -xarch=sparcvis ;;
2831 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2832 i586|pentium) echo -xchip=pentium ;;
2833 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2834 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2835 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2836 pentium4*) echo -xtarget=pentium4 ;;
2837 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2838 *-sse3) echo -xarch=sse3 ;;
2839 core2) echo -xarch=ssse3 -xchip=core2 ;;
2840 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2841 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2842 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2843 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2844 k8|opteron|athlon64|athlon-fx)
2845 echo -xarch=sse2a ;;
2846 athlon*) echo -xarch=pentium_proa ;;
2847 esac
2848 ;;
2849 -std=c99) echo -xc99 ;;
2850 -fomit-frame-pointer) echo -xregs=frameptr ;;
2851 -fPIC) echo -KPIC -xcode=pic32 ;;
2852 -W*,*) echo $flag ;;
2853 -f*-*|-W*|-mimpure-text) ;;
2854 -shared) echo -G ;;
2855 *) echo $flag ;;
2856 esac
2857 done
2858 }
2859
2860 tms470_flags(){
2861 for flag; do
2862 case $flag in
2863 -march=*|-mcpu=*)
2864 case "${flag#*=}" in
2865 armv7-a|cortex-a*) echo -mv=7a8 ;;
2866 armv7-r|cortex-r*) echo -mv=7r4 ;;
2867 armv7-m|cortex-m*) echo -mv=7m3 ;;
2868 armv6*|arm11*) echo -mv=6 ;;
2869 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2870 echo -mv=5e ;;
2871 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2872 esac
2873 ;;
2874 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2875 -mfpu=vfp) echo --float_support=vfpv2 ;;
2876 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2877 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2878 -msoft-float) echo --float_support=vfplib ;;
2879 -O[0-3]|-mf=*) echo $flag ;;
2880 -g) echo -g -mn ;;
2881 -pds=*) echo $flag ;;
2882 -D*|-I*) echo $flag ;;
2883 --gcc|--abi=*) echo $flag ;;
2884 -me) echo $flag ;;
2885 esac
2886 done
2887 }
2888
2889 probe_cc(){
2890 pfx=$1
2891 _cc=$2
2892
2893 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2894 unset _ld_o _ldflags _ld_lib _ld_path
2895 unset _depflags _DEPCMD _DEPFLAGS
2896 _flags_filter=echo
2897
2898 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2899 _type=llvm_gcc
2900 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2901 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2902 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2903 _cflags_speed='-O3'
2904 _cflags_size='-Os'
2905 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2906 _type=gcc
2907 gcc_version=$($_cc --version | head -n1)
2908 gcc_basever=$($_cc -dumpversion)
2909 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2910 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2911 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2912 if ! $_cc -dumpversion | grep -q '^2\.'; then
2913 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2914 fi
2915 _cflags_speed='-O3'
2916 _cflags_size='-Os'
2917 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2918 _type=icc
2919 _ident=$($_cc --version | head -n1)
2920 _depflags='-MMD'
2921 _cflags_speed='-O3'
2922 _cflags_size='-Os'
2923 _cflags_noopt='-O1'
2924 elif $_cc -v 2>&1 | grep -q xlc; then
2925 _type=xlc
2926 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2927 _cflags_speed='-O5'
2928 _cflags_size='-O5 -qcompact'
2929 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2930 _type=ccc
2931 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2932 _DEPFLAGS='-M'
2933 _cflags_speed='-fast'
2934 _cflags_size='-O1'
2935 _flags_filter=ccc_flags
2936 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2937 test -d "$sysroot" || die "No valid sysroot specified."
2938 _type=armcc
2939 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2940 armcc_conf="$PWD/armcc.conf"
2941 $_cc --arm_linux_configure \
2942 --arm_linux_config_file="$armcc_conf" \
2943 --configure_sysroot="$sysroot" \
2944 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2945 die "Error creating armcc configuration file."
2946 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2947 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2948 as_default="${cross_prefix}gcc"
2949 _depflags='-MMD'
2950 _cflags_speed='-O3'
2951 _cflags_size='-Os'
2952 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2953 _type=tms470
2954 _ident=$($_cc -version | head -n1 | tr -s ' ')
2955 _flags='--gcc --abi=eabi -me'
2956 _cc_e='-ppl -fe=$@'
2957 _cc_o='-fe=$@'
2958 _depflags='-ppa -ppd=$(@:.o=.d)'
2959 _cflags_speed='-O3 -mf=5'
2960 _cflags_size='-O3 -mf=2'
2961 _flags_filter=tms470_flags
2962 elif $_cc -v 2>&1 | grep -q clang; then
2963 _type=clang
2964 _ident=$($_cc --version | head -n1)
2965 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2966 _cflags_speed='-O3'
2967 _cflags_size='-Os'
2968 elif $_cc -V 2>&1 | grep -q Sun; then
2969 _type=suncc
2970 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2971 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2972 _DEPFLAGS='-xM1 -xc99'
2973 _ldflags='-std=c99'
2974 _cflags_speed='-O5'
2975 _cflags_size='-O5 -xspace'
2976 _flags_filter=suncc_flags
2977 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2978 _type=pathscale
2979 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2980 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2981 _cflags_speed='-O2'
2982 _cflags_size='-Os'
2983 _flags_filter='filter_out -Wdisabled-optimization'
2984 elif $_cc -v 2>&1 | grep -q Open64; then
2985 _type=open64
2986 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2987 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2988 _cflags_speed='-O2'
2989 _cflags_size='-Os'
2990 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2991 elif $_cc -V 2>&1 | grep -q Portland; then
2992 _type=pgi
2993 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2994 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2995 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2996 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2997 _cflags_noopt="-O1"
2998 _flags_filter=pgi_flags
2999 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3000 _type=armasm
3001 _ident=$($_cc | head -n1)
3002 # 4509: "This form of conditional instruction is deprecated"
3003 _flags="-nologo -ignore 4509"
3004 _flags_filter=armasm_flags
3005 elif $_cc 2>&1 | grep -q Microsoft; then
3006 _type=msvc
3007 _ident=$($_cc 2>&1 | head -n1)
3008 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3009 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3010 _cflags_speed="-O2"
3011 _cflags_size="-O1"
3012 if $_cc 2>&1 | grep -q Linker; then
3013 _ld_o='-out:$@'
3014 else
3015 _ld_o='-Fe$@'
3016 fi
3017 _cc_o='-Fo$@'
3018 _cc_e='-P -Fi$@'
3019 _flags_filter=msvc_flags
3020 _ld_lib='lib%.a'
3021 _ld_path='-libpath:'
3022 _flags='-nologo'
3023 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3024 elif $_cc 2>&1 | grep -q Intel; then
3025 _type=icl
3026 _ident=$($_cc 2>&1 | head -n1)
3027 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3028 # Not only is O3 broken on 13.x+ but it is slower on all previous
3029 # versions (tested) as well.
3030 _cflags_speed="-O2"
3031 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3032 if $_cc 2>&1 | grep -q Linker; then
3033 _ld_o='-out:$@'
3034 else
3035 _ld_o='-Fe$@'
3036 fi
3037 _cc_o='-Fo$@'
3038 _cc_e='-P'
3039 _flags_filter=icl_flags
3040 _ld_lib='lib%.a'
3041 _ld_path='-libpath:'
3042 # -Qdiag-error to make icl error when seeing certain unknown arguments
3043 _flags='-nologo -Qdiag-error:4044,10157'
3044 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3045 # with MSVC which enables it by default.
3046 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3047 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3048 _type=cparser
3049 _ident=$($_cc --version | head -n1)
3050 _depflags='-MMD'
3051 _cflags_speed='-O4'
3052 _cflags_size='-O2'
3053 _flags_filter=cparser_flags
3054 fi
3055
3056 eval ${pfx}_type=\$_type
3057 eval ${pfx}_ident=\$_ident
3058 }
3059
3060 set_ccvars(){
3061 eval ${1}_C=\${_cc_c-\${${1}_C}}
3062 eval ${1}_E=\${_cc_e-\${${1}_E}}
3063 eval ${1}_O=\${_cc_o-\${${1}_O}}
3064
3065 if [ -n "$_depflags" ]; then
3066 eval ${1}_DEPFLAGS=\$_depflags
3067 else
3068 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3069 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3070 eval DEP${1}FLAGS=\$_flags
3071 fi
3072 }
3073
3074 probe_cc cc "$cc"
3075 cflags_filter=$_flags_filter
3076 cflags_speed=$_cflags_speed
3077 cflags_size=$_cflags_size
3078 cflags_noopt=$_cflags_noopt
3079 add_cflags $_flags $_cflags
3080 cc_ldflags=$_ldflags
3081 set_ccvars CC
3082
3083 probe_cc hostcc "$host_cc"
3084 host_cflags_filter=$_flags_filter
3085 add_host_cflags $_flags $_cflags
3086 set_ccvars HOSTCC
3087
3088 test -n "$cc_type" && enable $cc_type ||
3089 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3090
3091 : ${as_default:=$cc}
3092 : ${dep_cc_default:=$cc}
3093 : ${ld_default:=$cc}
3094 : ${host_ld_default:=$host_cc}
3095 set_default ar as dep_cc ld host_ld
3096
3097 probe_cc as "$as"
3098 asflags_filter=$_flags_filter
3099 add_asflags $_flags $_cflags
3100 set_ccvars AS
3101
3102 probe_cc ld "$ld"
3103 ldflags_filter=$_flags_filter
3104 add_ldflags $_flags $_ldflags
3105 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3106 LD_O=${_ld_o-$LD_O}
3107 LD_LIB=${_ld_lib-$LD_LIB}
3108 LD_PATH=${_ld_path-$LD_PATH}
3109
3110 probe_cc hostld "$host_ld"
3111 host_ldflags_filter=$_flags_filter
3112 add_host_ldflags $_flags $_ldflags
3113 HOSTLD_O=${_ld_o-$HOSTLD_O}
3114
3115 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3116 probe_cc depcc "$dep_cc"
3117 CCDEP=${_DEPCMD:-$DEPCMD}
3118 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3119 DEPCCFLAGS=$_flags
3120 fi
3121
3122 if $ar 2>&1 | grep -q Microsoft; then
3123 arflags="-nologo"
3124 ar_o='-out:$@'
3125 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3126 arflags="rq"
3127 ar_o='$@'
3128 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3129 arflags='-Xany -r -c'
3130 ar_o='$@'
3131 else
3132 arflags="rc"
3133 ar_o='$@'
3134 fi
3135
3136 add_cflags $extra_cflags
3137 add_asflags $extra_cflags
3138
3139 if test -n "$sysroot"; then
3140 case "$cc_type" in
3141 gcc|llvm_gcc|clang)
3142 add_cppflags --sysroot="$sysroot"
3143 add_ldflags --sysroot="$sysroot"
3144 ;;
3145 tms470)
3146 add_cppflags -I"$sysinclude"
3147 add_ldflags --sysroot="$sysroot"
3148 ;;
3149 esac
3150 fi
3151
3152 if test "$cpu" = host; then
3153 enabled cross_compile &&
3154 die "--cpu=host makes no sense when cross-compiling."
3155
3156 case "$cc_type" in
3157 gcc|llvm_gcc)
3158 check_native(){
3159 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3160 sed -n "/cc1.*$1=/{
3161 s/.*$1=\\([^ ]*\\).*/\\1/
3162 p
3163 q
3164 }" $TMPE
3165 }
3166 cpu=$(check_native -march || check_native -mcpu)
3167 ;;
3168 esac
3169
3170 test "${cpu:-host}" = host &&
3171 die "--cpu=host not supported with compiler $cc"
3172 fi
3173
3174 # Deal with common $arch aliases
3175 case "$arch" in
3176 aarch64|arm64)
3177 arch="aarch64"
3178 ;;
3179 arm*)
3180 arch="arm"
3181 ;;
3182 mips*|IP*)
3183 arch="mips"
3184 ;;
3185 parisc*|hppa*)
3186 arch="parisc"
3187 ;;
3188 "Power Macintosh"|ppc*|powerpc*)
3189 arch="ppc"
3190 ;;
3191 s390|s390x)
3192 arch="s390"
3193 ;;
3194 sh4|sh)
3195 arch="sh4"
3196 ;;
3197 sun4u|sparc*)
3198 arch="sparc"
3199 ;;
3200 tilegx|tile-gx)
3201 arch="tilegx"
3202 ;;
3203 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3204 arch="x86"
3205 ;;
3206 esac
3207
3208 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3209 enable $arch
3210
3211 # Add processor-specific flags
3212 if enabled aarch64; then
3213
3214 case $cpu in
3215 armv*)
3216 cpuflags="-march=$cpu"
3217 ;;
3218 *)
3219 cpuflags="-mcpu=$cpu"
3220 ;;
3221 esac
3222
3223 elif enabled alpha; then
3224
3225 cpuflags="-mcpu=$cpu"
3226
3227 elif enabled arm; then
3228
3229 check_arm_arch() {
3230 check_cpp_condition stddef.h \
3231 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3232 $cpuflags
3233 }
3234
3235 probe_arm_arch() {
3236 if check_arm_arch 4; then echo armv4;
3237 elif check_arm_arch 4T; then echo armv4t;
3238 elif check_arm_arch 5; then echo armv5;
3239 elif check_arm_arch 5E; then echo armv5e;
3240 elif check_arm_arch 5T; then echo armv5t;
3241 elif check_arm_arch 5TE; then echo armv5te;
3242 elif check_arm_arch 5TEJ; then echo armv5te;
3243 elif check_arm_arch 6; then echo armv6;
3244 elif check_arm_arch 6J; then echo armv6j;
3245 elif check_arm_arch 6K; then echo armv6k;
3246 elif check_arm_arch 6Z; then echo armv6z;
3247 elif check_arm_arch 6ZK; then echo armv6zk;
3248 elif check_arm_arch 6T2; then echo armv6t2;
3249 elif check_arm_arch 7; then echo armv7;
3250 elif check_arm_arch 7A 7_A; then echo armv7-a;
3251 elif check_arm_arch 7S; then echo armv7-a;
3252 elif check_arm_arch 7R 7_R; then echo armv7-r;
3253 elif check_arm_arch 7M 7_M; then echo armv7-m;
3254 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3255 elif check_arm_arch 8A 8_A; then echo armv8-a;
3256 fi
3257 }
3258
3259 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3260
3261 case $cpu in
3262 armv*)
3263 cpuflags="-march=$cpu"
3264 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3265 ;;
3266 *)
3267 cpuflags="-mcpu=$cpu"
3268 case $cpu in
3269 cortex-a*) subarch=armv7a ;;
3270 cortex-r*) subarch=armv7r ;;
3271 cortex-m*) enable thumb; subarch=armv7m ;;
3272 arm11*) subarch=armv6 ;;
3273 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3274 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3275 *) subarch=$(probe_arm_arch) ;;
3276 esac
3277 ;;
3278 esac
3279
3280 case "$subarch" in
3281 armv5t*) enable fast_clz ;;
3282 armv[6-8]*) enable fast_clz fast_unaligned ;;
3283 esac
3284
3285 elif enabled avr32; then
3286
3287 case $cpu in
3288 ap7[02]0[0-2])
3289 subarch="avr32_ap"
3290 cpuflags="-mpart=$cpu"
3291 ;;
3292 ap)
3293 subarch="avr32_ap"
3294 cpuflags="-march=$cpu"
3295 ;;
3296 uc3[ab]*)
3297 subarch="avr32_uc"
3298 cpuflags="-mcpu=$cpu"
3299 ;;
3300 uc)
3301 subarch="avr32_uc"
3302 cpuflags="-march=$cpu"
3303 ;;
3304 esac
3305
3306 elif enabled bfin; then
3307
3308 cpuflags="-mcpu=$cpu"
3309
3310 elif enabled mips; then
3311
3312 cpuflags="-march=$cpu"
3313
3314 elif enabled ppc; then
3315
3316 disable ldbrx
3317
3318 case $(tolower $cpu) in
3319 601|ppc601|powerpc601)
3320 cpuflags="-mcpu=601"
3321 disable altivec
3322 ;;
3323 603*|ppc603*|powerpc603*)
3324 cpuflags="-mcpu=603"
3325 disable altivec
3326 ;;
3327 604*|ppc604*|powerpc604*)
3328 cpuflags="-mcpu=604"
3329 disable altivec
3330 ;;
3331 g3|75*|ppc75*|powerpc75*)
3332 cpuflags="-mcpu=750"
3333 disable altivec
3334 ;;
3335 g4|745*|ppc745*|powerpc745*)
3336 cpuflags="-mcpu=7450"
3337 disable vsx
3338 ;;
3339 74*|ppc74*|powerpc74*)
3340 cpuflags="-mcpu=7400"
3341 disable vsx
3342 ;;
3343 g5|970|ppc970|powerpc970)
3344 cpuflags="-mcpu=970"
3345 disable vsx
3346 ;;
3347 power[3-6]*)
3348 cpuflags="-mcpu=$cpu"
3349 disable vsx
3350 ;;
3351 power[7-8]*)
3352 cpuflags="-mcpu=$cpu"
3353 enable ldbrx
3354 ;;
3355 cell)
3356 cpuflags="-mcpu=cell"
3357 enable ldbrx
3358 disable vsx
3359 ;;
3360 e500mc)
3361 cpuflags="-mcpu=e500mc"
3362 disable altivec
3363 ;;
3364 e500v2)
3365 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3366 disable altivec
3367 disable dcbzl
3368 ;;
3369 e500)
3370 cpuflags="-mcpu=8540 -mhard-float"
3371 disable altivec
3372 disable dcbzl
3373 ;;
3374 esac
3375
3376 elif enabled sparc; then
3377
3378 case $cpu in
3379 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3380 cpuflags="-mcpu=$cpu"
3381 ;;
3382 ultrasparc*|niagara[234])
3383 cpuflags="-mcpu=$cpu"
3384 ;;
3385 esac
3386
3387 elif enabled x86; then
3388
3389 case $cpu in
3390 i[345]86|pentium)
3391 cpuflags="-march=$cpu"
3392 disable i686
3393 disable mmx
3394 ;;
3395 # targets that do NOT support nopl and conditional mov (cmov)
3396 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3397 cpuflags="-march=$cpu"
3398 disable i686
3399 ;;
3400 # targets that do support nopl and conditional mov (cmov)
3401 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3402 cpuflags="-march=$cpu"
3403 enable i686
3404 enable fast_cmov
3405 ;;
3406 # targets that do support conditional mov but on which it's slow
3407 pentium4|pentium4m|prescott|nocona)
3408 cpuflags="-march=$cpu"
3409 enable i686
3410 disable fast_cmov
3411 ;;
3412 esac
3413
3414 fi
3415
3416 if [ "$cpu" != generic ]; then
3417 add_cflags $cpuflags
3418 add_asflags $cpuflags
3419 fi
3420
3421 # compiler sanity check
3422 check_exec <<EOF
3423 int main(void){ return 0; }
3424 EOF
3425 if test "$?" != 0; then
3426 echo "$cc is unable to create an executable file."
3427 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3428 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3429 echo "Only do this if you know what cross compiling means."
3430 fi
3431 die "C compiler test failed."
3432 fi
3433
3434 add_cppflags -D_ISOC99_SOURCE
3435 check_cflags -std=c99
3436 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3437 #include <stdlib.h>
3438 EOF
3439 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3440 #include <stdlib.h>
3441 EOF
3442
3443 add_host_cppflags -D_ISOC99_SOURCE
3444 check_host_cflags -std=c99
3445 check_host_cflags -Wall
3446 check_host_cflags -O3
3447
3448 check_64bit(){
3449 arch32=$1
3450 arch64=$2
3451 expr=$3
3452 check_code cc "" "int test[2*($expr) - 1]" &&
3453 subarch=$arch64 || subarch=$arch32
3454 }
3455
3456 case "$arch" in
3457 aarch64|alpha|ia64)
3458 spic=$shared
3459 ;;
3460 mips)
3461 check_64bit mips mips64 '_MIPS_SIM > 1'
3462 spic=$shared
3463 ;;
3464 parisc)
3465 check_64bit parisc parisc64 'sizeof(void *) > 4'
3466 spic=$shared
3467 ;;
3468 ppc)
3469 check_64bit ppc ppc64 'sizeof(void *) > 4'
3470 spic=$shared
3471 ;;
3472 s390)
3473 check_64bit s390 s390x 'sizeof(void *) > 4'
3474 spic=$shared
3475 ;;
3476 sparc)
3477 check_64bit sparc sparc64 'sizeof(void *) > 4'
3478 spic=$shared
3479 ;;
3480 x86)
3481 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3482 if test "$subarch" = "x86_64"; then
3483 spic=$shared
3484 fi
3485 ;;
3486 esac
3487
3488 enable $subarch
3489 enabled spic && enable_weak pic
3490
3491 # OS specific
3492 case $target_os in
3493 aix)
3494 SHFLAGS=-shared
3495 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3496 enabled shared && add_ldflags -Wl,-brtl
3497 ;;
3498 android)
3499 disable symver
3500 enable section_data_rel_ro
3501 SLIB_INSTALL_NAME='$(SLIBNAME)'
3502 SLIB_INSTALL_LINKS=
3503 # soname not set on purpose
3504 SHFLAGS=-shared
3505 ;;
3506 haiku)
3507 prefix_default="/boot/common"
3508 network_extralibs="-lnetwork"
3509 host_libs=
3510 ;;
3511 sunos)
3512 SHFLAGS='-shared -Wl,-h,$$(@F)'
3513 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3514 network_extralibs="-lsocket -lnsl"
3515 # When using suncc to build, the Solaris linker will mark
3516 # an executable with each instruction set encountered by
3517 # the Solaris assembler. As our libraries contain their own
3518 # guards for processor-specific code, instead suppress
3519 # generation of the HWCAPS ELF section on Solaris x86 only.
3520 enabled_all suncc x86 &&
3521 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3522 add_ldflags -Wl,-M,mapfile
3523 nm_default='nm -P -g'
3524 ;;
3525 netbsd)
3526 disable symver
3527 oss_indev_extralibs="-lossaudio"
3528 oss_outdev_extralibs="-lossaudio"
3529 ;;
3530 openbsd|bitrig)
3531 disable symver
3532 SHFLAGS='-shared'
3533 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3534 SLIB_INSTALL_LINKS=
3535 oss_indev_extralibs="-lossaudio"
3536 oss_outdev_extralibs="-lossaudio"
3537 ;;
3538 dragonfly)
3539 disable symver
3540 ;;
3541 freebsd)
3542 ;;
3543 bsd/os)
3544 add_extralibs -lpoll -lgnugetopt
3545 ;;
3546 darwin)
3547 enabled ppc && add_asflags -force_cpusubtype_ALL
3548 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3549 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3550 add_ldflags -Wl,-dynamic,-search_paths_first
3551 SLIBSUF=".dylib"
3552 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3553 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3554 objformat="macho"
3555 enabled x86_64 && objformat="macho64"
3556 enabled_any pic shared ||
3557 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3558 ;;
3559 mingw32*)
3560 if test $target_os = "mingw32ce"; then
3561 disable network
3562 else
3563 target_os=mingw32
3564 fi
3565 LIBTARGET=i386
3566 if enabled x86_64; then
3567 LIBTARGET="i386:x86-64"
3568 elif enabled arm; then
3569 LIBTARGET=arm-wince
3570 fi
3571 check_ldflags -Wl,--nxcompat
3572 check_ldflags -Wl,--dynamicbase
3573 shlibdir_default="$bindir_default"
3574 SLIBPREF=""
3575 SLIBSUF=".dll"
3576 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3577 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3578 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3579 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3580 SLIB_INSTALL_LINKS=
3581 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3582 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3583 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3584 objformat="win32"
3585 dlltool="${cross_prefix}dlltool"
3586 ranlib=:
3587 enable dos_paths
3588 ;;
3589 win32|win64)
3590 disable symver
3591 if enabled shared; then
3592 # Link to the import library instead of the normal static library
3593 # for shared libs.
3594 LD_LIB='%.lib'
3595 # Cannot build both shared and static libs with MSVC or icl.
3596 disable static
3597 fi
3598 shlibdir_default="$bindir_default"
3599 SLIBPREF=""
3600 SLIBSUF=".dll"
3601 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3602 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3603 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3604 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3605 SLIB_INSTALL_LINKS=
3606 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3607 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3608 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3609 objformat="win32"
3610 ranlib=:
3611 enable dos_paths
3612 ;;
3613 cygwin*)
3614 target_os=cygwin
3615 shlibdir_default="$bindir_default"
3616 SLIBPREF="cyg"
3617 SLIBSUF=".dll"
3618 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3619 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3620 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3621 SLIB_INSTALL_LINKS=
3622 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3623 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3624 objformat="win32"
3625 enable dos_paths
3626 ;;
3627 *-dos|freedos|opendos)
3628 network_extralibs="-lsocket"
3629 objformat="coff"
3630 enable dos_paths
3631 add_cppflags -U__STRICT_ANSI__
3632 ;;
3633 linux)
3634 enable dv1394
3635 enable section_data_rel_ro
3636 ;;
3637 irix*)
3638 target_os=irix
3639 ranlib="echo ignoring ranlib"
3640 ;;
3641 os/2*)
3642 ln_s="cp -f"
3643 objformat="aout"
3644 add_cppflags -D_GNU_SOURCE
3645 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3646 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3647 LIBSUF="_s.a"
3648 SLIBPREF=""
3649 SLIBSUF=".dll"
3650 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3651 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3652 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3653 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3654 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3655 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3656 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3657 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3658 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3659 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3660 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3661 enable dos_paths
3662 ;;
3663 gnu/kfreebsd)
3664 add_cppflags -D_BSD_SOURCE
3665 ;;
3666 gnu)
3667 ;;
3668 qnx)
3669 add_cppflags -D_QNX_SOURCE
3670 network_extralibs="-lsocket"
3671 ;;
3672 symbian)
3673 SLIBSUF=".dll"
3674 enable dos_paths
3675 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3676 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3677 add_ldflags -Wl,--target1-abs,--no-undefined \
3678 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3679 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3680 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3681 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3682 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3683 ;;
3684 osf1)
3685 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3686 ;;
3687 minix)
3688 ;;
3689 plan9)
3690 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3691 -D_REENTRANT_SOURCE \
3692 -D_RESEARCH_SOURCE \
3693 -DFD_SETSIZE=96 \
3694 -DHAVE_SOCK_OPTS
3695 add_compat strtod.o strtod=avpriv_strtod
3696 network_extralibs='-lbsd'
3697 exeobjs=compat/plan9/main.o
3698 cp_f='cp'
3699 ;;
3700 none)
3701 ;;
3702 *)
3703 die "Unknown OS '$target_os'."
3704 ;;
3705 esac
3706
3707 # determine libc flavour
3708
3709 probe_libc(){
3710 pfx=$1
3711 pfx_no_=${pfx%_}
3712 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3713 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3714 eval ${pfx}libc_type=uclibc
3715 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3716 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3717 eval ${pfx}libc_type=glibc
3718 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3719 # MinGW headers can be installed on Cygwin, so check for newlib first.
3720 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3721 eval ${pfx}libc_type=newlib
3722 add_${pfx}cppflags -U__STRICT_ANSI__
3723 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3724 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3725 eval ${pfx}libc_type=mingw64
3726 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3727 eval test \$${pfx_no_}cc_type = "gcc" &&
3728 add_${pfx}cppflags -D__printf__=__gnu_printf__
3729 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3730 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3731 eval ${pfx}libc_type=mingw32
3732 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3733 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3734 die "ERROR: MinGW32 runtime version must be >= 3.15."
3735 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3736 eval test \$${pfx_no_}cc_type = "gcc" &&
3737 add_${pfx}cppflags -D__printf__=__gnu_printf__
3738 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3739 eval ${pfx}libc_type=msvcrt
3740 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3741 if [ "$pfx" = host_ ]; then
3742 add_host_cppflags -Dsnprintf=_snprintf
3743 else
3744 add_compat strtod.o strtod=avpriv_strtod
3745 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3746 _snprintf=avpriv_snprintf \
3747 vsnprintf=avpriv_vsnprintf
3748 fi
3749 fi
3750 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3751 # 0x601 by default unless something else is set by the user.
3752 # This can easily lead to us detecting functions only present
3753 # in such new versions and producing binaries requiring windows 7.0.
3754 # Therefore explicitly set the default to XP unless the user has
3755 # set something else on the command line.
3756 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3757 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3758 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3759 eval ${pfx}libc_type=klibc
3760 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3761 eval ${pfx}libc_type=bionic
3762 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3763 eval ${pfx}libc_type=solaris
3764 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3765 else
3766 eval ${pfx}libc_type=default
3767 add_${pfx}cppflags -D_DEFAULT_SOURCE
3768 fi
3769 }
3770
3771 probe_libc
3772 test -n "$libc_type" && enable libc_$libc_type
3773 probe_libc host_
3774 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3775
3776 case $libc_type in
3777 bionic)
3778 add_compat strtod.o strtod=avpriv_strtod
3779 ;;
3780 esac
3781
3782 # hacks for compiler/libc/os combinations
3783
3784 if enabled_all tms470 libc_glibc; then
3785 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3786 add_cppflags -D__USER_LABEL_PREFIX__=
3787 add_cppflags -D__builtin_memset=memset
3788 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3789 add_cflags -pds=48 # incompatible redefinition of macro
3790 fi
3791
3792 if enabled_all ccc libc_glibc; then
3793 add_ldflags -Wl,-z,now # calls to libots crash without this
3794 fi
3795
3796 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3797 add_cppflags '-I\$(SRC_PATH)/compat/float'
3798
3799 esc(){
3800 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3801 }
3802
3803 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3804
3805 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3806
3807 set_default $PATHS_LIST
3808 set_default nm
3809
3810 # we need to build at least one lib type
3811 if ! enabled_any static shared; then
3812 cat <<EOF
3813 At least one library type must be built.
3814 Specify --enable-static to build the static libraries or --enable-shared to
3815 build the shared libraries as well. To only build the shared libraries specify
3816 --disable-static in addition to --enable-shared.
3817 EOF
3818 exit 1;
3819 fi
3820
3821 die_license_disabled() {
3822 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3823 }
3824
3825 die_license_disabled gpl libcdio
3826 die_license_disabled gpl libx264
3827 die_license_disabled gpl libx265
3828 die_license_disabled gpl libxavs
3829 die_license_disabled gpl libxvid
3830 die_license_disabled gpl x11grab
3831
3832 die_license_disabled nonfree libfaac
3833 die_license_disabled nonfree libfdk_aac
3834 die_license_disabled nonfree nvenc
3835 die_license_disabled nonfree openssl
3836
3837 die_license_disabled version3 libopencore_amrnb
3838 die_license_disabled version3 libopencore_amrwb
3839 die_license_disabled version3 libvo_aacenc
3840 die_license_disabled version3 libvo_amrwbenc
3841
3842 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3843
3844 disabled optimizations || check_cflags -fomit-frame-pointer
3845
3846 enable_weak_pic() {
3847 disabled pic && return
3848 enable pic
3849 add_cppflags -DPIC
3850 case "$target_os" in
3851 mingw*|cygwin*)
3852 ;;
3853 *)
3854 add_cflags -fPIC
3855 ;;
3856 esac
3857 add_asflags -fPIC
3858 }
3859
3860 enabled pic && enable_weak_pic
3861
3862 check_cc <<EOF || die "Symbol mangling check failed."
3863 int ff_extern;
3864 EOF
3865 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3866 extern_prefix=${sym%%ff_extern*}
3867
3868 check_cc <<EOF && enable_weak inline_asm
3869 void foo(void) { __asm__ volatile ("" ::); }
3870 EOF
3871
3872 _restrict=
3873 for restrict_keyword in restrict __restrict__ __restrict; do
3874 check_cc <<EOF && _restrict=$restrict_keyword && break
3875 void foo(char * $restrict_keyword p);
3876 EOF
3877 done
3878
3879 check_cc <<EOF && enable pragma_deprecated
3880 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3881 EOF
3882
3883 check_cc <<EOF && enable attribute_packed
3884 struct { int x; } __attribute__((packed)) x;
3885 EOF
3886
3887 check_cc <<EOF && enable attribute_may_alias
3888 union { int x; } __attribute__((may_alias)) x;
3889 EOF
3890
3891 check_cc <<EOF || die "endian test failed"
3892 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3893 EOF
3894 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3895
3896 check_gas() {
3897 log "check_gas using '$as' as AS"
3898 # :vararg is used on aarch64, arm and ppc altivec
3899 check_as <<EOF || return 1
3900 .macro m n, y:vararg=0
3901 \n: .int \y
3902 .endm
3903 m x
3904 EOF
3905 # .altmacro is only used in arm asm
3906 ! enabled arm || check_as <<EOF || return 1
3907 .altmacro
3908 EOF
3909 enable gnu_as
3910 return 0
3911 }
3912
3913 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3914 nogas=:
3915 enabled_any arm aarch64 && nogas=die
3916 enabled_all ppc altivec && nogas=warn
3917 as_noop=-v
3918
3919 case $as_type in
3920 arm*) gaspp_as_type=armasm; as_noop=-h ;;
3921 gcc) gaspp_as_type=gas ;;
3922 *) gaspp_as_type=$as_type ;;
3923 esac
3924
3925 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3926
3927 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3928 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3929
3930 if ! check_gas ; then
3931 as=${gas:=$as}
3932 check_gas || \
3933 $nogas "GNU assembler not found, install/update gas-preprocessor"
3934 fi
3935
3936 check_as <<EOF && enable as_func
3937 .func test
3938 .endfunc
3939 EOF
3940 fi
3941
3942 check_inline_asm inline_asm_labels '"1:\n"'
3943
3944 if enabled aarch64; then
3945 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
3946 # internal assembler in clang 3.3 does not support this instruction
3947 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3948 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3949
3950 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3951
3952 elif enabled alpha; then
3953
3954 check_cflags -mieee
3955
3956 elif enabled arm; then
3957
3958 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3959 enabled thumb && check_cflags -mthumb || check_cflags -marm
3960
3961 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3962 enable vfp_args
3963 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3964 case "${cross_prefix:-$cc}" in
3965 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3966 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3967 __asm__ (".eabi_attribute 28, 1");
3968 int main(void) { return 0; }
3969 EOF
3970 esac
3971 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3972 fi
3973
3974 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3975 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3976 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3977 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3978 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3979 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3980
3981 [ $target_os = linux ] || [ $target_os = android ] ||
3982 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3983 $ARCH_EXT_LIST_ARM
3984
3985 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3986
3987 check_as <<EOF && enable as_dn_directive
3988 ra .dn d0.i16
3989 .unreq ra
3990 EOF
3991
3992 # llvm's integrated assembler supports .object_arch from llvm 3.5
3993 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
3994 .object_arch armv4
3995 EOF
3996
3997 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3998
3999 elif enabled mips; then
4000
4001 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4002
4003 elif enabled parisc; then
4004
4005 if enabled gcc; then
4006 case $($cc -dumpversion) in
4007 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4008 esac
4009 fi
4010
4011 elif enabled ppc; then
4012
4013 enable local_aligned_8 local_aligned_16
4014
4015 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4016 check_inline_asm ibm_asm '"add 0, 0, 0"'
4017 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4018 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4019
4020 # AltiVec flags: The FSF version of GCC differs from the Apple version
4021 if enabled altivec; then
4022 check_cflags -maltivec -mabi=altivec &&
4023 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4024 check_cflags -faltivec
4025
4026 # check if our compiler supports Motorola AltiVec C API
4027 check_cc <<EOF || disable altivec
4028 $inc_altivec_h
4029 int main(void) {
4030 vector signed int v1 = (vector signed int) { 0 };
4031 vector signed int v2 = (vector signed int) { 1 };
4032 v1 = vec_add(v1, v2);
4033 return 0;
4034 }
4035 EOF
4036
4037 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4038 fi
4039
4040 if enabled vsx; then
4041 check_cflags -mvsx &&
4042 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4043 fi
4044
4045 if enabled power8; then
4046 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4047 fi
4048
4049 elif enabled x86; then
4050
4051 check_builtin rdtsc intrin.h "__rdtsc()"
4052 check_builtin mm_empty mmintrin.h "_mm_empty()"
4053
4054 enable local_aligned_8 local_aligned_16
4055
4056 # check whether EBP is available on x86
4057 # As 'i' is stored on the stack, this program will crash
4058 # if the base pointer is used to access it because the
4059 # base pointer is cleared in the inline assembly code.
4060 check_exec_crash <<EOF && enable ebp_available
4061 volatile int i=0;
4062 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4063 return i;
4064 EOF
4065
4066 # check whether EBX is available on x86
4067 check_inline_asm ebx_available '""::"b"(0)' &&
4068 check_inline_asm ebx_available '"":::"%ebx"'
4069
4070 # check whether xmm clobbers are supported
4071 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4072
4073 # check whether binutils is new enough to compile SSSE3/MMXEXT
4074 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4075 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4076
4077 if ! disabled_any asm mmx yasm; then
4078 if check_cmd $yasmexe --version; then
4079 enabled x86_64 && yasm_extra="-m amd64"
4080 yasm_debug="-g dwarf2"
4081 elif check_cmd nasm -v; then
4082 yasmexe=nasm
4083 yasm_debug="-g -F dwarf"
4084 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4085 fi
4086
4087 YASMFLAGS="-f $objformat $yasm_extra"
4088 enabled pic && append YASMFLAGS "-DPIC"
4089 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4090 case "$objformat" in
4091 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4092 esac
4093
4094 check_yasm "movbe ecx, [5]" && enable yasm ||
4095 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4096 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4097 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4098 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4099 check_yasm "CPU amdnop" || disable cpunop
4100 fi
4101
4102 case "$cpu" in
4103 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4104 disable fast_clz
4105 ;;
4106 esac
4107
4108 fi
4109
4110 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4111
4112 check_ldflags -Wl,--as-needed
4113
4114 if check_func dlopen; then
4115 ldl=
4116 elif check_func dlopen -ldl; then
4117 ldl=-ldl
4118 fi
4119
4120 if ! disabled network; then
4121 check_func getaddrinfo $network_extralibs
4122 check_func getservbyport $network_extralibs
4123 check_func inet_aton $network_extralibs
4124
4125 check_type netdb.h "struct addrinfo"
4126 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4127 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4128 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4129 check_type poll.h "struct pollfd"
4130 check_type netinet/sctp.h "struct sctp_event_subscribe"
4131 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4132 check_type netinet/in.h "struct sockaddr_in6"
4133 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4134 check_type "sys/types.h sys/socket.h" socklen_t
4135
4136 # Prefer arpa/inet.h over winsock2
4137 if check_header arpa/inet.h ; then
4138 check_func closesocket
4139 elif check_header winsock2.h ; then
4140 check_func_headers winsock2.h closesocket -lws2 &&
4141 network_extralibs="-lws2" ||
4142 { check_func_headers winsock2.h closesocket -lws2_32 &&
4143 network_extralibs="-lws2_32"; } || disable winsock2_h network
4144 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4145
4146 check_type ws2tcpip.h socklen_t
4147 check_type ws2tcpip.h "struct addrinfo"
4148 check_type ws2tcpip.h "struct group_source_req"
4149 check_type ws2tcpip.h "struct ip_mreq_source"
4150 check_type ws2tcpip.h "struct ipv6_mreq"
4151 check_type winsock2.h "struct pollfd"
4152 check_struct winsock2.h "struct sockaddr" sa_len
4153 check_type ws2tcpip.h "struct sockaddr_in6"
4154 check_type ws2tcpip.h "struct sockaddr_storage"
4155 else
4156 disable network
4157 fi
4158 fi
4159
4160 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4161 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4162 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4163 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4164
4165 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4166 check_func ${malloc_prefix}memalign && enable memalign
4167 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4168
4169 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4170 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4171
4172 check_func fcntl
4173 check_func fork
4174 check_func gethrtime
4175 check_func getopt
4176 check_func getrusage
4177 check_func gettimeofday
4178 check_func gmtime_r
4179 check_func isatty
4180 check_func localtime_r
4181 check_func mach_absolute_time
4182 check_func mkstemp
4183 check_func mmap
4184 check_func mprotect
4185 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4186 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4187 check_func sched_getaffinity
4188 check_func setrlimit
4189 check_func strerror_r
4190 check_func sysconf
4191 check_func sysctl
4192 check_func usleep
4193
4194 check_func_headers io.h setmode
4195 check_func_headers stdlib.h getenv
4196
4197 check_func_headers windows.h CoTaskMemFree -lole32
4198 check_func_headers windows.h GetProcessAffinityMask
4199 check_func_headers windows.h GetProcessTimes
4200 check_func_headers windows.h GetSystemTimeAsFileTime
4201 check_func_headers windows.h LoadLibrary
4202 check_func_headers windows.h MapViewOfFile
4203 check_func_headers windows.h SetConsoleTextAttribute
4204 check_func_headers windows.h Sleep
4205 check_func_headers windows.h VirtualAlloc
4206 check_struct windows.h "CONDITION_VARIABLE" Ptr
4207
4208 check_header direct.h
4209 check_header dlfcn.h
4210 check_header d3d11.h
4211 check_header dxva.h
4212 check_header dxva2api.h
4213 check_header io.h
4214 check_header mach/mach_time.h
4215 check_header malloc.h
4216 check_header poll.h
4217 check_header sys/mman.h
4218 check_header sys/param.h
4219 check_header sys/resource.h
4220 check_header sys/select.h
4221 check_header sys/time.h
4222 check_header sys/un.h
4223 check_header unistd.h
4224 check_header valgrind/valgrind.h
4225 check_header vdpau/vdpau.h
4226 check_header vdpau/vdpau_x11.h
4227 check_header VideoDecodeAcceleration/VDADecoder.h
4228 check_header windows.h
4229 check_header X11/extensions/XvMClib.h
4230
4231 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4232 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4233 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4234
4235 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4236
4237 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
4238 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4239 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0600
4240
4241 if ! disabled w32threads && ! enabled pthreads; then
4242 check_func_headers "windows.h process.h" _beginthreadex &&
4243 enable w32threads || disable w32threads
4244 fi
4245
4246 # check for some common methods of building with pthread support
4247 # do this before the optional library checks as some of them require pthreads
4248 if ! disabled pthreads && ! enabled w32threads; then
4249 enable pthreads
4250 if check_func pthread_join -pthread; then
4251 add_cflags -pthread
4252 add_extralibs -pthread
4253 elif check_func pthread_join -pthreads; then
4254 add_cflags -pthreads
4255 add_extralibs -pthreads
4256 elif check_func pthread_join -lpthreadGC2; then
4257 add_extralibs -lpthreadGC2
4258 elif check_lib pthread.h pthread_join -lpthread; then
4259 :
4260 elif ! check_func pthread_join; then
4261 disable pthreads
4262 fi
4263 fi
4264
4265 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4266 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4267
4268 check_lib math.h sin -lm && LIBM="-lm"
4269 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4270
4271 atan2f_args=2
4272 ldexpf_args=2
4273 powf_args=2
4274
4275 for func in $MATH_FUNCS; do
4276 eval check_mathfunc $func \${${func}_args:-1}
4277 done
4278
4279 # these are off by default, so fail if requested and not available
4280 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4281 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4282 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4283 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4284 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4285 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4286 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4287 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4288 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4289 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4290 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4291 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4292 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4293 done || die "ERROR: libgsm not found"; }
4294 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4295 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4296 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4297 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4298 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4299 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4300 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4301 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4302 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4303 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4304 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4305 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4306 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4307 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4308 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4309 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4310 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4311 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4312 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4313 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4314 enabled libvpx_vp8_decoder && {
4315 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4316 disable libvpx_vp8_decoder;
4317 }
4318 enabled libvpx_vp8_encoder && {
4319 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4320 disable libvpx_vp8_encoder;
4321 }
4322 enabled libvpx_vp9_decoder && {
4323 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4324 disable libvpx_vp9_decoder;
4325 }
4326 enabled libvpx_vp9_encoder && {
4327 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4328 disable libvpx_vp9_encoder;
4329 }
4330 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4331 die "libvpx enabled but no supported decoders found"
4332 fi
4333 }
4334 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4335 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4336 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4337 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4338 die "ERROR: libx264 version must be >= 0.118."; }
4339 enabled libx265 && require_pkg_config x265 x265.h x265_encoder_encode &&
4340 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4341 die "ERROR: libx265 version must be >= 57."; }
4342 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4343 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4344 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4345 { ! enabled cross_compile && {
4346 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4347 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4348 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4349 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4350 die "ERROR: mmal not found"; }
4351 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4352 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4353 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4354 die "ERROR: openssl not found"; }
4355
4356 if enabled gnutls; then
4357 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4358 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4359 fi
4360
4361 # libdc1394 check
4362 if enabled libdc1394; then
4363 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4364 enable libdc1394_2; } ||
4365 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4366 enable libdc1394_1; } ||
4367 die "ERROR: No version of libdc1394 found "
4368 fi
4369
4370 if enabled nvenc; then
4371 check_header cuda.h || die "ERROR: cuda.h not found.";
4372 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4373 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4374 die "ERROR: NVENC API version 4 or older is not supported";
4375 fi
4376
4377 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4378 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4379 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4380 enable sdl
4381 fi