dde78b86575706c1d62ab5f69dad95f3ebe32996
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libkvazaar HEVC video encoding
207 --enable-libmp3lame MP3 audio encoding
208 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
209 --enable-libopencore-amrwb AMR-WB audio decoding
210 --enable-libopencv computer vision
211 --enable-libopenh264 H.264 video encoding/decoding
212 --enable-libopenjpeg JPEG 2000 image encoding/decoding
213 --enable-libopus Opus audio encoding/decoding
214 --enable-libpulse Pulseaudio sound server
215 --enable-librtmp RTMP streaming
216 --enable-libschroedinger Dirac video encoding/decoding
217 --enable-libsnappy snappy compression
218 --enable-libspeex Speex audio encoding/decoding
219 --enable-libtheora Theora video encoding/decoding
220 --enable-libtwolame MP2 audio encoding
221 --enable-libvo-aacenc AAC audio encoding
222 --enable-libvo-amrwbenc AMR-WB audio encoding
223 --enable-libvorbis Vorbis audio encoding/decoding
224 --enable-libvpx VP* video encoding/decoding
225 --enable-libwavpack Wavpack audio encoding/decoding
226 --enable-libwebp WebP image encoding/decoding
227 --enable-libx264 H.264 video encoding
228 --enable-libx265 HEVC video encoding
229 --enable-libxavs Chinese AVS video encoding
230 --enable-libxcb X window system protocol communication
231 --enable-libxcb-shm X11 shm communication [auto]
232 --enable-libxcb-xfixes X11 mouse rendering [auto]
233 --enable-libxvid MPEG-4 ASP video encoding
234 --enable-openssl crypto
235 --enable-zlib compression [autodetect]
236
237 The following libraries provide various hardware acceleration features:
238 --enable-cuda Nvidia CUDA (dynamically linked)
239 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
240 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
241 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
242 --enable-libnpp Nvidia CUDA processing
243 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
244 --enable-nvenc Nvidia video encoding
245 --enable-omx OpenMAX IL
246 --enable-omx-rpi OpenMAX IL for Raspberry Pi
247 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
248 --enable-vda Apple Video Decode Acceleration [auto]
249 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
250
251 Toolchain options:
252 --arch=ARCH select architecture [$arch]
253 --cpu=CPU select the minimum required CPU (affects
254 instruction selection, may crash on older CPUs)
255 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
256 --enable-cross-compile assume a cross-compiler is used
257 --sysroot=PATH root of cross-build tree
258 --sysinclude=PATH location of cross-build system headers
259 --target-os=OS compiler targets OS [$target_os]
260 --target-exec=CMD command to run executables on target
261 --target-path=DIR path to view of build directory on target
262 --target-samples=DIR path to samples directory on target
263 --toolchain=NAME set tool defaults according to NAME
264 --nm=NM use nm tool
265 --ar=AR use archive tool AR [$ar_default]
266 --as=AS use assembler AS [$as_default]
267 --cc=CC use C compiler CC [$cc_default]
268 --objcc=OCC use ObjC compiler OCC [$cc_default]
269 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
270 --ld=LD use linker LD
271 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
272 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
273 --host-cc=HOSTCC use host C compiler HOSTCC
274 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
275 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
276 --host-ld=HOSTLD use host linker HOSTLD
277 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
278 --host-libs=HLIBS use libs HLIBS when linking for host
279 --host-os=OS compiler host OS [$target_os]
280 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
281 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
282 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
283 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
284 --extra-libs=ELIBS add ELIBS [$ELIBS]
285 --extra-version=STRING version string suffix []
286 --optflags=OPTFLAGS override optimization-related compiler flags
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
291
292 Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
301
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-yasm disable use of nasm/yasm assembly
329
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --enable-random randomly enable/disable components
342 --disable-random
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
347 NAME (default 0.5).
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
351 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
352 in the name) of tests whose result is ignored
353
354 NOTE: Object files are built at the place where configure is launched.
355 EOF
356 exit 0
357 }
358
359 quotes='""'
360
361 log(){
362 echo "$@" >> $logfile
363 }
364
365 log_file(){
366 log BEGIN $1
367 i=1
368 while read line; do
369 printf '%5s %s\n' "${i}" "${line}"
370 i=$(($i+1))
371 done < $1 >> $logfile
372 log END $1
373 }
374
375 echolog(){
376 log "$@"
377 echo "$@"
378 }
379
380 warn(){
381 log "WARNING: $*"
382 WARNINGS="${WARNINGS}WARNING: $*\n"
383 }
384
385 die(){
386 echolog "$@"
387 cat <<EOF
388
389 If you think configure made a mistake, make sure you are using the latest
390 version from Git. If the latest version fails, report the problem to the
391 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
392 EOF
393 if disabled logging; then
394 cat <<EOF
395 Rerun configure with logging enabled (do not use --disable-logging), and
396 include the log this produces with your report.
397 EOF
398 else
399 cat <<EOF
400 Include the log file "$logfile" produced by configure as this will help
401 solving the problem.
402 EOF
403 fi
404 exit 1
405 }
406
407 # Avoid locale weirdness, besides we really just want to translate ASCII.
408 toupper(){
409 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
410 }
411
412 tolower(){
413 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
414 }
415
416 c_escape(){
417 echo "$*" | sed 's/["\\]/\\\0/g'
418 }
419
420 sh_quote(){
421 v=$(echo "$1" | sed "s/'/'\\\\''/g")
422 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
423 echo "$v"
424 }
425
426 cleanws(){
427 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
428 }
429
430 filter(){
431 pat=$1
432 shift
433 for v; do
434 eval "case $v in $pat) printf '%s ' $v ;; esac"
435 done
436 }
437
438 filter_out(){
439 pat=$1
440 shift
441 for v; do
442 eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
443 done
444 }
445
446 map(){
447 m=$1
448 shift
449 for v; do eval $m; done
450 }
451
452 add_suffix(){
453 suffix=$1
454 shift
455 for v; do echo ${v}${suffix}; done
456 }
457
458 set_all(){
459 value=$1
460 shift
461 for var in $*; do
462 eval $var=$value
463 done
464 }
465
466 set_weak(){
467 value=$1
468 shift
469 for var; do
470 eval : \${$var:=$value}
471 done
472 }
473
474 sanitize_var_name(){
475 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
476 }
477
478 set_safe(){
479 var=$1
480 shift
481 eval $(sanitize_var_name "$var")='$*'
482 }
483
484 get_safe(){
485 eval echo \$$(sanitize_var_name "$1")
486 }
487
488 pushvar(){
489 for pvar in $*; do
490 eval level=\${${pvar}_level:=0}
491 eval ${pvar}_${level}="\$$pvar"
492 eval ${pvar}_level=$(($level+1))
493 done
494 }
495
496 popvar(){
497 for pvar in $*; do
498 eval level=\${${pvar}_level:-0}
499 test $level = 0 && continue
500 eval level=$(($level-1))
501 eval $pvar="\${${pvar}_${level}}"
502 eval ${pvar}_level=$level
503 eval unset ${pvar}_${level}
504 done
505 }
506
507 enable(){
508 set_all yes $*
509 }
510
511 disable(){
512 set_all no $*
513 }
514
515 enable_weak(){
516 set_weak yes $*
517 }
518
519 disable_weak(){
520 set_weak no $*
521 }
522
523 enable_safe(){
524 for var; do
525 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
526 done
527 }
528
529 disable_safe(){
530 for var; do
531 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
532 done
533 }
534
535 do_enable_deep(){
536 for var; do
537 enabled $var && continue
538 eval sel="\$${var}_select"
539 eval sgs="\$${var}_suggest"
540 pushvar var sgs
541 enable_deep $sel
542 popvar sgs
543 enable_deep_weak $sgs
544 popvar var
545 done
546 }
547
548 enable_deep(){
549 do_enable_deep $*
550 enable $*
551 }
552
553 enable_deep_weak(){
554 for var; do
555 disabled $var && continue
556 pushvar var
557 do_enable_deep $var
558 popvar var
559 enable_weak $var
560 done
561 }
562
563 enabled(){
564 test "${1#!}" = "$1" && op== || op=!=
565 eval test "x\$${1#!}" $op "xyes"
566 }
567
568 disabled(){
569 test "${1#!}" = "$1" && op== || op=!=
570 eval test "x\$${1#!}" $op "xno"
571 }
572
573 enabled_all(){
574 for opt; do
575 enabled $opt || return 1
576 done
577 }
578
579 disabled_all(){
580 for opt; do
581 disabled $opt || return 1
582 done
583 }
584
585 enabled_any(){
586 for opt; do
587 enabled $opt && return 0
588 done
589 }
590
591 disabled_any(){
592 for opt; do
593 disabled $opt && return 0
594 done
595 return 1
596 }
597
598 set_default(){
599 for opt; do
600 eval : \${$opt:=\$${opt}_default}
601 done
602 }
603
604 is_in(){
605 value=$1
606 shift
607 for var in $*; do
608 [ $var = $value ] && return 0
609 done
610 return 1
611 }
612
613 do_check_deps(){
614 for cfg; do
615 cfg="${cfg#!}"
616 enabled ${cfg}_checking && die "Circular dependency for $cfg."
617 disabled ${cfg}_checking && continue
618 enable ${cfg}_checking
619 append allopts $cfg
620
621 eval dep_all="\$${cfg}_deps"
622 eval dep_any="\$${cfg}_deps_any"
623 eval dep_sel="\$${cfg}_select"
624 eval dep_sgs="\$${cfg}_suggest"
625 eval dep_ifa="\$${cfg}_if"
626 eval dep_ifn="\$${cfg}_if_any"
627
628 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
629 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
630 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
631
632 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
633 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
634 enabled_all $dep_all || disable $cfg
635 enabled_any $dep_any || disable $cfg
636 disabled_any $dep_sel && disable $cfg
637
638 if enabled $cfg; then
639 enable_deep $dep_sel
640 enable_deep_weak $dep_sgs
641 fi
642
643 disable ${cfg}_checking
644 done
645 }
646
647 check_deps(){
648 unset allopts
649
650 do_check_deps "$@"
651
652 for cfg in $allopts; do
653 enabled $cfg || continue
654 eval dep_extralibs="\$${cfg}_extralibs"
655 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
656 done
657 }
658
659 print_config(){
660 pfx=$1
661 files=$2
662 shift 2
663 map 'eval echo "$v \${$v:-no}"' "$@" |
664 awk "BEGIN { split(\"$files\", files) }
665 {
666 c = \"$pfx\" toupper(\$1);
667 v = \$2;
668 sub(/yes/, 1, v);
669 sub(/no/, 0, v);
670 for (f in files) {
671 file = files[f];
672 if (file ~ /\\.h\$/) {
673 printf(\"#define %s %d\\n\", c, v) >>file;
674 } else if (file ~ /\\.asm\$/) {
675 printf(\"%%define %s %d\\n\", c, v) >>file;
676 } else if (file ~ /\\.mak\$/) {
677 n = -v ? \"\" : \"!\";
678 printf(\"%s%s=yes\\n\", n, c) >>file;
679 }
680 }
681 }"
682 }
683
684 print_enabled(){
685 suf=$1
686 shift
687 for v; do
688 enabled $v && printf "%s\n" ${v%$suf}
689 done
690 }
691
692 append(){
693 var=$1
694 shift
695 eval "$var=\"\$$var $*\""
696 }
697
698 prepend(){
699 var=$1
700 shift
701 eval "$var=\"$* \$$var\""
702 }
703
704 unique(){
705 var=$1
706 uniq_list=""
707 for tok in $(eval echo \$$var); do
708 uniq_list="$(filter_out $tok $uniq_list) $tok"
709 done
710 eval "$var=\"${uniq_list}\""
711 }
712
713 add_cppflags(){
714 append CPPFLAGS "$@"
715 }
716
717 add_cflags(){
718 append CFLAGS $($cflags_filter "$@")
719 }
720
721 add_cflags_headers(){
722 append CFLAGS_HEADERS $($cflags_filter "$@")
723 }
724
725 add_asflags(){
726 append ASFLAGS $($asflags_filter "$@")
727 }
728
729 add_objcflags(){
730 append OBJCFLAGS $($objcflags_filter "$@")
731 }
732
733 add_ldflags(){
734 append LDFLAGS $($ldflags_filter "$@")
735 }
736
737 add_ldexeflags(){
738 append LDEXEFLAGS $($ldflags_filter "$@")
739 }
740
741 add_stripflags(){
742 append STRIPFLAGS "$@"
743 }
744
745 add_extralibs(){
746 prepend extralibs $($ldflags_filter "$@")
747 }
748
749 add_host_cppflags(){
750 append host_cppflags "$@"
751 }
752
753 add_host_cflags(){
754 append host_cflags $($host_cflags_filter "$@")
755 }
756
757 add_host_ldflags(){
758 append host_ldflags $($host_ldflags_filter "$@")
759 }
760
761 add_compat(){
762 append compat_objs $1
763 shift
764 map 'add_cppflags -D$v' "$@"
765 }
766
767 check_cmd(){
768 log "$@"
769 "$@" >> $logfile 2>&1
770 }
771
772 cc_o(){
773 eval printf '%s\\n' $CC_O
774 }
775
776 cc_e(){
777 eval printf '%s\\n' $CC_E
778 }
779
780 check_cc(){
781 log check_cc "$@"
782 cat > $TMPC
783 log_file $TMPC
784 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
785 }
786
787 check_objcc(){
788 log check_objcc "$@"
789 cat > $TMPC
790 log_file $TMPC
791 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
792 }
793
794 check_cpp(){
795 log check_cpp "$@"
796 cat > $TMPC
797 log_file $TMPC
798 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
799 }
800
801 as_o(){
802 eval printf '%s\\n' $AS_O
803 }
804
805 check_as(){
806 log check_as "$@"
807 cat > $TMPS
808 log_file $TMPS
809 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
810 }
811
812 check_inline_asm(){
813 log check_inline_asm "$@"
814 name="$1"
815 code="$2"
816 shift 2
817 disable $name
818 check_cc "$@" <<EOF && enable $name
819 void foo(void){ __asm__ volatile($code); }
820 EOF
821 }
822
823 check_insn(){
824 log check_insn "$@"
825 check_inline_asm ${1}_inline "\"$2\""
826 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
827 }
828
829 check_yasm(){
830 log check_yasm "$@"
831 echo "$1" > $TMPS
832 log_file $TMPS
833 shift 1
834 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
835 }
836
837 ld_o(){
838 eval printf '%s\\n' $LD_O
839 }
840
841 check_ld(){
842 log check_ld "$@"
843 flags=$(filter_out '-l*' "$@")
844 libs=$(filter '-l*' "$@")
845 check_cc $($cflags_filter $flags) || return
846 flags=$($ldflags_filter $flags)
847 libs=$($ldflags_filter $libs)
848 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
849 }
850
851 print_include(){
852 hdr=$1
853 test "${hdr%.h}" = "${hdr}" &&
854 echo "#include $hdr" ||
855 echo "#include <$hdr>"
856 }
857
858 check_code(){
859 log check_code "$@"
860 check=$1
861 headers=$2
862 code=$3
863 shift 3
864 {
865 for hdr in $headers; do
866 print_include $hdr
867 done
868 echo "int main(void) { $code; return 0; }"
869 } | check_$check "$@"
870 }
871
872 check_cppflags(){
873 log check_cppflags "$@"
874 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
875 int x;
876 EOF
877 }
878
879 test_cflags(){
880 log test_cflags "$@"
881 set -- $($cflags_filter "$@")
882 check_cc "$@" <<EOF
883 int x;
884 EOF
885 }
886
887 check_cflags(){
888 log check_cflags "$@"
889 test_cflags "$@" && add_cflags "$@"
890 }
891
892 test_objcflags(){
893 log test_objcflags "$@"
894 set -- $($objcflags_filter "$@")
895 check_objcc "$@" <<EOF
896 int x;
897 EOF
898 }
899
900 check_objcflags(){
901 log check_objcflags "$@"
902 test_objcflags "$@" && add_objcflags "$@"
903 }
904
905 test_ldflags(){
906 log test_ldflags "$@"
907 check_ld "$@" <<EOF
908 int main(void){ return 0; }
909 EOF
910 }
911
912 check_ldflags(){
913 log check_ldflags "$@"
914 test_ldflags "$@" && add_ldflags "$@"
915 }
916
917 test_stripflags(){
918 log test_stripflags "$@"
919 # call check_cc to get a fresh TMPO
920 check_cc <<EOF
921 int main(void) { return 0; }
922 EOF
923 check_cmd $strip $STRIPFLAGS "$@" $TMPO
924 }
925
926 check_stripflags(){
927 log check_stripflags "$@"
928 test_stripflags "$@" && add_stripflags "$@"
929 }
930
931 check_header(){
932 log check_header "$@"
933 header=$1
934 shift
935 disable_safe $header
936 check_cpp "$@" <<EOF && enable_safe $header
937 #include <$header>
938 int x;
939 EOF
940 }
941
942 check_func(){
943 log check_func "$@"
944 func=$1
945 shift
946 disable $func
947 check_ld "$@" <<EOF && enable $func
948 extern int $func();
949 int main(void){ $func(); }
950 EOF
951 }
952
953 check_mathfunc(){
954 log check_mathfunc "$@"
955 func=$1
956 narg=$2
957 shift 2
958 test $narg = 2 && args="f, g" || args="f"
959 disable $func
960 check_ld "$@" <<EOF && enable $func
961 #include <math.h>
962 float foo(float f, float g) { return $func($args); }
963 int main(void){ return 0; }
964 EOF
965 }
966
967 check_func_headers(){
968 log check_func_headers "$@"
969 headers=$1
970 funcs=$2
971 shift 2
972 {
973 for hdr in $headers; do
974 print_include $hdr
975 done
976 for func in $funcs; do
977 echo "long check_$func(void) { return (long) $func; }"
978 done
979 echo "int main(void) { return 0; }"
980 } | check_ld "$@" && enable $funcs && enable_safe $headers
981 }
982
983 check_cpp_condition(){
984 log check_cpp_condition "$@"
985 header=$1
986 condition=$2
987 shift 2
988 check_cpp "$@" <<EOF
989 #include <$header>
990 #if !($condition)
991 #error "unsatisfied condition: $condition"
992 #endif
993 EOF
994 }
995
996 test_cflags_cpp(){
997 log test_cflags_cpp "$@"
998 flags=$1
999 condition=$2
1000 shift 2
1001 set -- $($cflags_filter "$flags")
1002 check_cpp "$@" <<EOF
1003 #if !($condition)
1004 #error "unsatisfied condition: $condition"
1005 #endif
1006 EOF
1007 }
1008
1009 check_lib(){
1010 log check_lib "$@"
1011 name="$1"
1012 headers="$2"
1013 funcs="$3"
1014 shift 3
1015 disable $name
1016 check_func_headers "$headers" "$funcs" "$@" &&
1017 enable $name && add_extralibs "$@"
1018 }
1019
1020 check_pkg_config(){
1021 log check_pkg_config "$@"
1022 pkg_version="$1"
1023 pkg="${1%% *}"
1024 headers="$2"
1025 funcs="$3"
1026 shift 3
1027 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1028 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1029 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1030 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1031 set_safe "${pkg}_cflags" $pkg_cflags &&
1032 set_safe "${pkg}_extralibs" $pkg_libs
1033 }
1034
1035 check_exec(){
1036 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1037 }
1038
1039 check_exec_crash(){
1040 log check_exec_crash "$@"
1041 code=$(cat)
1042
1043 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1044 # are safe but may not be available everywhere. Thus we use
1045 # raise(SIGTERM) instead. The check is run in a subshell so we
1046 # can redirect the "Terminated" message from the shell. SIGBUS
1047 # is not defined by standard C so it is used conditionally.
1048
1049 (check_exec "$@") >> $logfile 2>&1 <<EOF
1050 #include <signal.h>
1051 static void sighandler(int sig){
1052 raise(SIGTERM);
1053 }
1054 int foo(void){
1055 $code
1056 }
1057 int (*func_ptr)(void) = foo;
1058 int main(void){
1059 signal(SIGILL, sighandler);
1060 signal(SIGFPE, sighandler);
1061 signal(SIGSEGV, sighandler);
1062 #ifdef SIGBUS
1063 signal(SIGBUS, sighandler);
1064 #endif
1065 return func_ptr();
1066 }
1067 EOF
1068 }
1069
1070 check_type(){
1071 log check_type "$@"
1072 headers=$1
1073 type=$2
1074 shift 2
1075 disable_safe "$type"
1076 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1077 }
1078
1079 check_struct(){
1080 log check_struct "$@"
1081 headers=$1
1082 struct=$2
1083 member=$3
1084 shift 3
1085 disable_safe "${struct}_${member}"
1086 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1087 enable_safe "${struct}_${member}"
1088 }
1089
1090 check_builtin(){
1091 log check_builtin "$@"
1092 name=$1
1093 headers=$2
1094 builtin=$3
1095 shift 3
1096 disable "$name"
1097 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1098 }
1099
1100 check_compile_assert(){
1101 log check_compile_assert "$@"
1102 name=$1
1103 headers=$2
1104 condition=$3
1105 shift 3
1106 disable "$name"
1107 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1108 }
1109
1110 require(){
1111 log require "$@"
1112 name_version="$1"
1113 name="${1%% *}"
1114 headers="$2"
1115 func="$3"
1116 shift 3
1117 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1118 }
1119
1120 require_pkg_config(){
1121 log require_pkg_config "$@"
1122 pkg_version="$1"
1123 pkg="${1%% *}"
1124 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1125 add_cflags $(get_safe "${pkg}_cflags")
1126 add_extralibs $(get_safe "${pkg}_extralibs")
1127 }
1128
1129 hostcc_e(){
1130 eval printf '%s\\n' $HOSTCC_E
1131 }
1132
1133 hostcc_o(){
1134 eval printf '%s\\n' $HOSTCC_O
1135 }
1136
1137 check_host_cc(){
1138 log check_host_cc "$@"
1139 cat > $TMPC
1140 log_file $TMPC
1141 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1142 }
1143
1144 check_host_cpp(){
1145 log check_host_cpp "$@"
1146 cat > $TMPC
1147 log_file $TMPC
1148 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1149 }
1150
1151 check_host_cppflags(){
1152 log check_host_cppflags "$@"
1153 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1154 int x;
1155 EOF
1156 }
1157
1158 check_host_cflags(){
1159 log check_host_cflags "$@"
1160 set -- $($host_cflags_filter "$@")
1161 check_host_cc "$@" <<EOF && append host_cflags "$@"
1162 int x;
1163 EOF
1164 }
1165
1166 check_host_cpp_condition(){
1167 log check_host_cpp_condition "$@"
1168 header=$1
1169 condition=$2
1170 shift 2
1171 check_host_cpp "$@" <<EOF
1172 #include <$header>
1173 #if !($condition)
1174 #error "unsatisfied condition: $condition"
1175 #endif
1176 EOF
1177 }
1178
1179 apply(){
1180 file=$1
1181 shift
1182 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1183 }
1184
1185 cp_if_changed(){
1186 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1187 mkdir -p "$(dirname $2)"
1188 cp -f "$1" "$2"
1189 }
1190
1191 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1192 # system-dependent things.
1193
1194 AVCODEC_COMPONENTS="
1195 bsfs
1196 decoders
1197 encoders
1198 hwaccels
1199 parsers
1200 "
1201
1202 AVDEVICE_COMPONENTS="
1203 indevs
1204 outdevs
1205 "
1206 AVFILTER_COMPONENTS="
1207 filters
1208 "
1209 AVFORMAT_COMPONENTS="
1210 demuxers
1211 muxers
1212 protocols
1213 "
1214
1215 AVRESAMPLE_COMPONENTS=""
1216 AVUTIL_COMPONENTS=""
1217
1218 COMPONENT_LIST="
1219 $AVCODEC_COMPONENTS
1220 $AVDEVICE_COMPONENTS
1221 $AVFILTER_COMPONENTS
1222 $AVFORMAT_COMPONENTS
1223 $AVRESAMPLE_COMPONENTS
1224 $AVUTIL_COMPONENTS
1225 "
1226
1227 EXAMPLE_LIST="
1228 decode_audio_example
1229 decode_video_example
1230 encode_audio_example
1231 encode_video_example
1232 filter_audio_example
1233 metadata_example
1234 output_example
1235 qsvdec_example
1236 transcode_aac_example
1237 "
1238
1239 HWACCEL_LIBRARY_NONFREE_LIST="
1240 cuda
1241 libnpp
1242 "
1243 HWACCEL_LIBRARY_LIST="
1244 $HWACCEL_LIBRARY_NONFREE_LIST
1245 d3d11va
1246 dxva2
1247 libmfx
1248 mmal
1249 nvenc
1250 omx
1251 vaapi
1252 vda
1253 vdpau
1254 "
1255
1256 EXTERNAL_LIBRARY_GPL_LIST="
1257 libcdio
1258 libx264
1259 libx265
1260 libxavs
1261 libxvid
1262 "
1263
1264 EXTERNAL_LIBRARY_NONFREE_LIST="
1265 libfaac
1266 libfdk_aac
1267 openssl
1268 "
1269
1270 EXTERNAL_LIBRARY_VERSION3_LIST="
1271 libopencore_amrnb
1272 libopencore_amrwb
1273 libvo_aacenc
1274 libvo_amrwbenc
1275 "
1276
1277 EXTERNAL_LIBRARY_LIST="
1278 $EXTERNAL_LIBRARY_GPL_LIST
1279 $EXTERNAL_LIBRARY_NONFREE_LIST
1280 $EXTERNAL_LIBRARY_VERSION3_LIST
1281 avisynth
1282 avxsynth
1283 bzlib
1284 frei0r
1285 gnutls
1286 libbs2b
1287 libdc1394
1288 libdcadec
1289 libfontconfig
1290 libfreetype
1291 libgsm
1292 libhdcd
1293 libilbc
1294 libkvazaar
1295 libmp3lame
1296 libopencv
1297 libopenh264
1298 libopenjpeg
1299 libopus
1300 libpulse
1301 librtmp
1302 libschroedinger
1303 libsnappy
1304 libspeex
1305 libtheora
1306 libtwolame
1307 libvorbis
1308 libvpx
1309 libwavpack
1310 libwebp
1311 libxcb
1312 libxcb_shm
1313 libxcb_xfixes
1314 zlib
1315 "
1316
1317 FEATURE_LIST="
1318 gray
1319 hardcoded_tables
1320 omx_rpi
1321 runtime_cpudetect
1322 safe_bitstream_reader
1323 shared
1324 small
1325 sram
1326 static
1327 swscale_alpha
1328 "
1329
1330 LIBRARY_LIST="
1331 avcodec
1332 avdevice
1333 avfilter
1334 avformat
1335 avresample
1336 avutil
1337 swscale
1338 "
1339
1340 LICENSE_LIST="
1341 gpl
1342 nonfree
1343 version3
1344 "
1345
1346 PROGRAM_LIST="
1347 avconv
1348 avplay
1349 avprobe
1350 "
1351
1352 SUBSYSTEM_LIST="
1353 dct
1354 doc
1355 error_resilience
1356 faan
1357 fft
1358 lsp
1359 lzo
1360 mdct
1361 network
1362 rdft
1363 "
1364
1365 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1366 CONFIG_LIST="
1367 $EXAMPLE_LIST
1368 $EXTERNAL_LIBRARY_LIST
1369 $HWACCEL_LIBRARY_LIST
1370 $FEATURE_LIST
1371 $LICENSE_LIST
1372 $LIBRARY_LIST
1373 $PROGRAM_LIST
1374 $SUBSYSTEM_LIST
1375 neon_clobber_test
1376 pic
1377 pod2man
1378 texi2html
1379 thumb
1380 valgrind_backtrace
1381 xmm_clobber_test
1382 $COMPONENT_LIST
1383 "
1384
1385 THREADS_LIST="
1386 pthreads
1387 w32threads
1388 "
1389
1390 ATOMICS_LIST="
1391 atomics_gcc
1392 atomics_suncc
1393 atomics_win32
1394 "
1395
1396 ARCH_LIST="
1397 aarch64
1398 alpha
1399 arm
1400 avr32
1401 avr32_ap
1402 avr32_uc
1403 bfin
1404 ia64
1405 m68k
1406 mips
1407 mips64
1408 parisc
1409 ppc
1410 ppc64
1411 s390
1412 sh4
1413 sparc
1414 sparc64
1415 tilegx
1416 tilepro
1417 tomi
1418 x86
1419 x86_32
1420 x86_64
1421 "
1422
1423 ARCH_EXT_LIST_ARM="
1424 armv5te
1425 armv6
1426 armv6t2
1427 armv8
1428 neon
1429 vfp
1430 vfpv3
1431 "
1432
1433 ARCH_EXT_LIST_X86_SIMD="
1434 amd3dnow
1435 amd3dnowext
1436 avx
1437 avx2
1438 fma3
1439 fma4
1440 mmx
1441 mmxext
1442 sse
1443 sse2
1444 sse3
1445 sse4
1446 sse42
1447 ssse3
1448 xop
1449 "
1450
1451 ARCH_EXT_LIST_PPC="
1452 altivec
1453 dcbzl
1454 ldbrx
1455 power8
1456 ppc4xx
1457 vsx
1458 "
1459
1460 ARCH_EXT_LIST_X86="
1461 $ARCH_EXT_LIST_X86_SIMD
1462 cpunop
1463 i686
1464 "
1465
1466 ARCH_EXT_LIST_MIPS="
1467 loongson
1468 mips32r1
1469 mips64r1
1470 mips32r2
1471 mips64r2
1472 mips32r6
1473 mips64r6
1474 "
1475
1476 ARCH_EXT_LIST="
1477 $ARCH_EXT_LIST_ARM
1478 $ARCH_EXT_LIST_MIPS
1479 $ARCH_EXT_LIST_PPC
1480 $ARCH_EXT_LIST_X86
1481 vis
1482 "
1483
1484 ARCH_FEATURES="
1485 aligned_stack
1486 fast_64bit
1487 fast_clz
1488 fast_cmov
1489 local_aligned_8
1490 local_aligned_16
1491 local_aligned_32
1492 simd_align_16
1493 simd_align_32
1494 "
1495
1496 BUILTIN_LIST="
1497 atomic_cas_ptr
1498 machine_rw_barrier
1499 MemoryBarrier
1500 mm_empty
1501 rdtsc
1502 sem_timedwait
1503 sync_val_compare_and_swap
1504 "
1505 HAVE_LIST_CMDLINE="
1506 inline_asm
1507 symver
1508 yasm
1509 "
1510
1511 HAVE_LIST_PUB="
1512 bigendian
1513 fast_unaligned
1514 "
1515
1516 HEADERS_LIST="
1517 AVFoundation_AVFoundation_h
1518 alsa_asoundlib_h
1519 altivec_h
1520 arpa_inet_h
1521 cdio_paranoia_h
1522 cdio_paranoia_paranoia_h
1523 d3d11_h
1524 dispatch_dispatch_h
1525 dev_bktr_ioctl_bt848_h
1526 dev_bktr_ioctl_meteor_h
1527 dev_ic_bt8xx_h
1528 dev_video_bktr_ioctl_bt848_h
1529 dev_video_meteor_ioctl_meteor_h
1530 direct_h
1531 dlfcn_h
1532 dxva_h
1533 gsm_h
1534 io_h
1535 mach_mach_time_h
1536 machine_ioctl_bt848_h
1537 machine_ioctl_meteor_h
1538 malloc_h
1539 poll_h
1540 sndio_h
1541 soundcard_h
1542 stdatomic_h
1543 sys_mman_h
1544 sys_param_h
1545 sys_resource_h
1546 sys_select_h
1547 sys_soundcard_h
1548 sys_time_h
1549 sys_un_h
1550 sys_videoio_h
1551 unistd_h
1552 valgrind_valgrind_h
1553 windows_h
1554 winsock2_h
1555 "
1556
1557 INTRINSICS_LIST="
1558 intrinsics_neon
1559 "
1560
1561 MATH_FUNCS="
1562 atanf
1563 atan2f
1564 cbrtf
1565 cosf
1566 exp2
1567 exp2f
1568 expf
1569 isinf
1570 isnan
1571 ldexpf
1572 llrint
1573 llrintf
1574 log2
1575 log2f
1576 log10f
1577 lrint
1578 lrintf
1579 powf
1580 rint
1581 round
1582 roundf
1583 sinf
1584 trunc
1585 truncf
1586 "
1587
1588 SYSTEM_FUNCS="
1589 aligned_malloc
1590 clock_gettime
1591 closesocket
1592 CommandLineToArgvW
1593 CoTaskMemFree
1594 CryptGenRandom
1595 dlopen
1596 fcntl
1597 flt_lim
1598 fork
1599 getaddrinfo
1600 gethrtime
1601 getopt
1602 GetProcessAffinityMask
1603 GetProcessMemoryInfo
1604 GetProcessTimes
1605 getrusage
1606 GetSystemTimeAsFileTime
1607 gettimeofday
1608 gmtime_r
1609 inet_aton
1610 isatty
1611 jack_port_get_latency_range
1612 LoadLibrary
1613 localtime_r
1614 mach_absolute_time
1615 MapViewOfFile
1616 memalign
1617 mkstemp
1618 mmap
1619 mprotect
1620 nanosleep
1621 posix_memalign
1622 sched_getaffinity
1623 SetConsoleTextAttribute
1624 setmode
1625 setrlimit
1626 Sleep
1627 strerror_r
1628 sysconf
1629 sysctl
1630 usleep
1631 VirtualAlloc
1632 "
1633
1634 TOOLCHAIN_FEATURES="
1635 as_dn_directive
1636 as_fpu_directive
1637 as_func
1638 as_object_arch
1639 asm_mod_q
1640 attribute_may_alias
1641 attribute_packed
1642 blocks_extension
1643 ebp_available
1644 ebx_available
1645 gnu_as
1646 ibm_asm
1647 inline_asm_labels
1648 pragma_deprecated
1649 symver_asm_label
1650 symver_gnu_asm
1651 vfp_args
1652 xform_asm
1653 xmm_clobbers
1654 "
1655
1656 TYPES_LIST="
1657 CONDITION_VARIABLE_Ptr
1658 socklen_t
1659 struct_addrinfo
1660 struct_group_source_req
1661 struct_ip_mreq_source
1662 struct_ipv6_mreq
1663 struct_pollfd
1664 struct_rusage_ru_maxrss
1665 struct_sockaddr_in6
1666 struct_sockaddr_sa_len
1667 struct_sockaddr_storage
1668 struct_v4l2_frmivalenum_discrete
1669 "
1670
1671 HAVE_LIST="
1672 $ARCH_EXT_LIST
1673 $(add_suffix _external $ARCH_EXT_LIST)
1674 $(add_suffix _inline $ARCH_EXT_LIST)
1675 $ARCH_FEATURES
1676 $BUILTIN_LIST
1677 $HAVE_LIST_CMDLINE
1678 $HAVE_LIST_PUB
1679 $HEADERS_LIST
1680 $INTRINSICS_LIST
1681 $MATH_FUNCS
1682 $SYSTEM_FUNCS
1683 $THREADS_LIST
1684 $TOOLCHAIN_FEATURES
1685 $TYPES_LIST
1686 dos_paths
1687 dxva2_lib
1688 libc_msvcrt
1689 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1690 sdl
1691 section_data_rel_ro
1692 threads
1693 vaapi_drm
1694 vaapi_x11
1695 vdpau_x11
1696 "
1697
1698 # options emitted with CONFIG_ prefix but not available on the command line
1699 CONFIG_EXTRA="
1700 aandcttables
1701 ac3dsp
1702 audio_frame_queue
1703 audiodsp
1704 blockdsp
1705 bswapdsp
1706 cabac
1707 dirac_parse
1708 dvprofile
1709 faandct
1710 faanidct
1711 fdctdsp
1712 flacdsp
1713 fmtconvert
1714 g722dsp
1715 gmp
1716 golomb
1717 gplv3
1718 h263dsp
1719 h264chroma
1720 h264dsp
1721 h264parse
1722 h264pred
1723 h264qpel
1724 hevc_ps
1725 hpeldsp
1726 huffman
1727 huffyuvdsp
1728 huffyuvencdsp
1729 idctdsp
1730 iirfilter
1731 imdct15
1732 intrax8
1733 iso_media
1734 ividsp
1735 jpegtables
1736 libx262
1737 lgplv3
1738 lpc
1739 lzf
1740 me_cmp
1741 mpeg_er
1742 mpegaudio
1743 mpegaudiodsp
1744 mpegaudioheader
1745 mpegvideo
1746 mpegvideoenc
1747 mss34dsp
1748 pixblockdsp
1749 qpeldsp
1750 qsv
1751 qsvdec
1752 qsvenc
1753 rangecoder
1754 riffdec
1755 riffenc
1756 rtpdec
1757 rtpenc_chain
1758 rv34dsp
1759 sinewin
1760 snappy
1761 srtp
1762 startcode
1763 texturedsp
1764 texturedspenc
1765 tpeldsp
1766 vaapi_encode
1767 vc1dsp
1768 videodsp
1769 vp3dsp
1770 vp56dsp
1771 vp8dsp
1772 wma_freqs
1773 wmv2dsp
1774 "
1775
1776 CMDLINE_SELECT="
1777 $ARCH_EXT_LIST
1778 $CONFIG_LIST
1779 $HAVE_LIST_CMDLINE
1780 $THREADS_LIST
1781 asm
1782 cross_compile
1783 debug
1784 extra_warnings
1785 logging
1786 lto
1787 optimizations
1788 rpath
1789 "
1790
1791 PATHS_LIST="
1792 bindir
1793 datadir
1794 docdir
1795 incdir
1796 libdir
1797 mandir
1798 prefix
1799 shlibdir
1800 "
1801
1802 CMDLINE_SET="
1803 $PATHS_LIST
1804 ar
1805 arch
1806 as
1807 cc
1808 objcc
1809 cpu
1810 cross_prefix
1811 custom_allocator
1812 dep_cc
1813 env
1814 extra_version
1815 host_cc
1816 host_cflags
1817 host_extralibs
1818 host_ld
1819 host_ldflags
1820 host_os
1821 ignore_tests
1822 ld
1823 logfile
1824 malloc_prefix
1825 nm
1826 optflags
1827 pkg_config
1828 pkg_config_flags
1829 random_seed
1830 samples
1831 sysinclude
1832 sysroot
1833 target_exec
1834 target_os
1835 target_path
1836 target_samples
1837 toolchain
1838 "
1839
1840 CMDLINE_APPEND="
1841 extra_cflags
1842 extra_objcflags
1843 host_cppflags
1844 "
1845
1846 # code dependency declarations
1847
1848 # architecture extensions
1849
1850 armv5te_deps="arm"
1851 armv6_deps="arm"
1852 armv6t2_deps="arm"
1853 armv8_deps="aarch64"
1854 neon_deps_any="aarch64 arm"
1855 intrinsics_neon_deps="neon"
1856 vfp_deps_any="aarch64 arm"
1857 vfpv3_deps="vfp"
1858
1859 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1860
1861 altivec_deps="ppc"
1862 ppc4xx_deps="ppc"
1863 vsx_deps="altivec"
1864 power8_deps="vsx"
1865
1866 cpunop_deps="i686"
1867 x86_64_select="i686"
1868 x86_64_suggest="fast_cmov"
1869
1870 amd3dnow_deps="mmx"
1871 amd3dnowext_deps="amd3dnow"
1872 i686_deps="x86"
1873 mmx_deps="x86"
1874 mmxext_deps="mmx"
1875 sse_deps="mmxext"
1876 sse2_deps="sse"
1877 sse3_deps="sse2"
1878 ssse3_deps="sse3"
1879 sse4_deps="ssse3"
1880 sse42_deps="sse4"
1881 avx_deps="sse42"
1882 xop_deps="avx"
1883 fma3_deps="avx"
1884 fma4_deps="avx"
1885 avx2_deps="avx"
1886
1887 mmx_external_deps="yasm"
1888 mmx_inline_deps="inline_asm"
1889 mmx_suggest="mmx_external mmx_inline"
1890
1891 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1892 eval dep=\$${ext}_deps
1893 eval ${ext}_external_deps='"${dep}_external"'
1894 eval ${ext}_inline_deps='"${dep}_inline"'
1895 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1896 done
1897
1898 aligned_stack_if_any="aarch64 ppc x86"
1899 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1900 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1901 fast_unaligned_if_any="aarch64 ppc x86"
1902 simd_align_16_if_any="altivec neon sse"
1903 simd_align_32_if_any="avx"
1904
1905 # system capabilities
1906 symver_if_any="symver_asm_label symver_gnu_asm"
1907 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1908
1909 # threading support
1910 atomics_gcc_if="sync_val_compare_and_swap"
1911 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1912 atomics_win32_if="MemoryBarrier"
1913 atomics_native_if_any="$ATOMICS_LIST"
1914 w32threads_deps="atomics_native"
1915 threads_if_any="$THREADS_LIST"
1916
1917 # subsystems
1918 dct_select="rdft"
1919 dirac_parse_select="golomb"
1920 error_resilience_select="me_cmp"
1921 faandct_deps="faan fdctdsp"
1922 faanidct_deps="faan idctdsp"
1923 h264dsp_select="startcode"
1924 hevc_ps_select="golomb"
1925 intrax8_select="blockdsp idctdsp"
1926 mdct_select="fft"
1927 rdft_select="fft"
1928 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1929 mpeg_er_select="error_resilience"
1930 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1931 mpegaudiodsp_select="dct"
1932 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1933 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1934 vc1dsp_select="h264chroma qpeldsp startcode"
1935
1936 # decoders / encoders
1937 aac_decoder_select="imdct15 mdct sinewin"
1938 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1939 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1940 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1941 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1942 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1943 adpcm_g722_decoder_select="g722dsp"
1944 adpcm_g722_encoder_select="g722dsp"
1945 aic_decoder_select="golomb idctdsp"
1946 alac_encoder_select="lpc"
1947 als_decoder_select="bswapdsp"
1948 amrnb_decoder_select="lsp"
1949 amrwb_decoder_select="lsp"
1950 amv_decoder_select="sp5x_decoder"
1951 ape_decoder_select="bswapdsp"
1952 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1953 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1954 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1955 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1956 atrac1_decoder_select="mdct sinewin"
1957 atrac3_decoder_select="mdct"
1958 atrac3p_decoder_select="mdct sinewin"
1959 bink_decoder_select="blockdsp hpeldsp"
1960 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1961 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1962 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1963 cllc_decoder_select="bswapdsp"
1964 comfortnoise_encoder_select="lpc"
1965 cook_decoder_select="audiodsp mdct sinewin"
1966 cscd_decoder_select="lzo"
1967 cscd_decoder_suggest="zlib"
1968 dca_decoder_select="fmtconvert mdct"
1969 dds_decoder_select="texturedsp"
1970 dnxhd_decoder_select="blockdsp idctdsp"
1971 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1972 dvvideo_decoder_select="dvprofile idctdsp"
1973 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1974 dxa_decoder_deps="zlib"
1975 dxv_decoder_select="lzf texturedsp"
1976 eac3_decoder_select="ac3_decoder"
1977 eac3_encoder_select="ac3_encoder"
1978 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1979 eatgq_decoder_select="aandcttables idctdsp"
1980 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1981 exr_decoder_deps="zlib"
1982 ffv1_decoder_select="rangecoder"
1983 ffv1_encoder_select="rangecoder"
1984 ffvhuff_decoder_select="huffyuv_decoder"
1985 ffvhuff_encoder_select="huffyuv_encoder"
1986 fic_decoder_select="golomb"
1987 flac_decoder_select="flacdsp"
1988 flac_encoder_select="bswapdsp flacdsp lpc"
1989 flashsv_decoder_deps="zlib"
1990 flashsv_encoder_deps="zlib"
1991 flashsv2_decoder_deps="zlib"
1992 flv_decoder_select="h263_decoder"
1993 flv_encoder_select="h263_encoder"
1994 fourxm_decoder_select="blockdsp bswapdsp"
1995 fraps_decoder_select="bswapdsp huffman"
1996 g2m_decoder_deps="zlib"
1997 g2m_decoder_select="blockdsp idctdsp jpegtables"
1998 h261_decoder_select="mpeg_er mpegvideo"
1999 h261_encoder_select="aandcttables mpegvideoenc"
2000 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2001 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2002 h263i_decoder_select="h263_decoder"
2003 h263p_encoder_select="h263_encoder"
2004 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2005 h264_decoder_suggest="error_resilience"
2006 hap_decoder_select="snappy texturedsp"
2007 hap_encoder_deps="libsnappy"
2008 hap_encoder_select="texturedspenc"
2009 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2010 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2011 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2012 iac_decoder_select="imc_decoder"
2013 imc_decoder_select="bswapdsp fft mdct sinewin"
2014 indeo3_decoder_select="hpeldsp"
2015 indeo4_decoder_select="ividsp"
2016 indeo5_decoder_select="ividsp"
2017 interplay_video_decoder_select="hpeldsp"
2018 jpegls_decoder_select="mjpeg_decoder"
2019 jv_decoder_select="blockdsp"
2020 lagarith_decoder_select="huffyuvdsp"
2021 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2022 magicyuv_decoder_select="huffyuvdsp"
2023 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2024 metasound_decoder_select="lsp mdct sinewin"
2025 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2026 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2027 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2028 mjpegb_decoder_select="mjpeg_decoder"
2029 mlp_decoder_select="mlp_parser"
2030 motionpixels_decoder_select="bswapdsp"
2031 mp1_decoder_select="mpegaudio"
2032 mp1float_decoder_select="mpegaudio"
2033 mp2_decoder_select="mpegaudio"
2034 mp2float_decoder_select="mpegaudio"
2035 mp3_decoder_select="mpegaudio"
2036 mp3adu_decoder_select="mpegaudio"
2037 mp3adufloat_decoder_select="mpegaudio"
2038 mp3float_decoder_select="mpegaudio"
2039 mp3on4_decoder_select="mpegaudio"
2040 mp3on4float_decoder_select="mpegaudio"
2041 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2042 mpc8_decoder_select="mpegaudiodsp"
2043 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2044 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2045 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2046 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2047 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2048 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2049 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2050 mpeg4_encoder_select="h263_encoder"
2051 msa1_decoder_select="mss34dsp"
2052 msmpeg4v1_decoder_select="h263_decoder"
2053 msmpeg4v2_decoder_select="h263_decoder"
2054 msmpeg4v2_encoder_select="h263_encoder"
2055 msmpeg4v3_decoder_select="h263_decoder"
2056 msmpeg4v3_encoder_select="h263_encoder"
2057 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2058 mts2_decoder_select="mss34dsp"
2059 mxpeg_decoder_select="mjpeg_decoder"
2060 nellymoser_decoder_select="mdct sinewin"
2061 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2062 nuv_decoder_select="idctdsp lzo"
2063 on2avc_decoder_select="mdct"
2064 opus_decoder_deps="avresample"
2065 opus_decoder_select="imdct15"
2066 png_decoder_deps="zlib"
2067 png_encoder_deps="zlib"
2068 png_encoder_select="huffyuvencdsp"
2069 prores_decoder_select="idctdsp"
2070 prores_encoder_select="fdctdsp"
2071 qcelp_decoder_select="lsp"
2072 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2073 ra_144_encoder_select="audio_frame_queue lpc"
2074 ralf_decoder_select="golomb"
2075 rscc_decoder_deps="zlib"
2076 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2077 rv10_encoder_select="h263_encoder"
2078 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2079 rv20_encoder_select="h263_encoder"
2080 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2081 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2082 screenpresso_decoder_deps="zlib"
2083 sipr_decoder_select="lsp"
2084 sp5x_decoder_select="mjpeg_decoder"
2085 svq1_decoder_select="hpeldsp"
2086 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2087 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2088 svq3_decoder_suggest="zlib"
2089 tak_decoder_select="audiodsp"
2090 tdsc_decoder_deps="zlib"
2091 tdsc_decoder_select="mjpeg_decoder"
2092 theora_decoder_select="vp3_decoder"
2093 thp_decoder_select="mjpeg_decoder"
2094 tiff_decoder_suggest="zlib"
2095 tiff_encoder_suggest="zlib"
2096 truehd_decoder_select="mlp_decoder"
2097 truemotion2_decoder_select="bswapdsp"
2098 truespeech_decoder_select="bswapdsp"
2099 tscc_decoder_deps="zlib"
2100 txd_decoder_select="texturedsp"
2101 twinvq_decoder_select="mdct lsp sinewin"
2102 utvideo_decoder_select="bswapdsp"
2103 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2104 vble_decoder_select="huffyuvdsp"
2105 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2106 vc1image_decoder_select="vc1_decoder"
2107 vorbis_decoder_select="mdct"
2108 vorbis_encoder_select="mdct"
2109 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2110 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2111 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2112 vp6a_decoder_select="vp6_decoder"
2113 vp6f_decoder_select="vp6_decoder"
2114 vp7_decoder_select="h264pred videodsp vp8dsp"
2115 vp8_decoder_select="h264pred videodsp vp8dsp"
2116 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2117 webp_decoder_select="vp8_decoder"
2118 wmapro_decoder_select="mdct sinewin wma_freqs"
2119 wmav1_decoder_select="mdct sinewin wma_freqs"
2120 wmav1_encoder_select="mdct sinewin wma_freqs"
2121 wmav2_decoder_select="mdct sinewin wma_freqs"
2122 wmav2_encoder_select="mdct sinewin wma_freqs"
2123 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2124 wmv1_decoder_select="h263_decoder"
2125 wmv1_encoder_select="h263_encoder"
2126 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2127 wmv2_encoder_select="h263_encoder wmv2dsp"
2128 wmv3_decoder_select="vc1_decoder"
2129 wmv3image_decoder_select="wmv3_decoder"
2130 zerocodec_decoder_deps="zlib"
2131 zlib_decoder_deps="zlib"
2132 zlib_encoder_deps="zlib"
2133 zmbv_decoder_deps="zlib"
2134 zmbv_encoder_deps="zlib"
2135
2136 # hardware accelerators
2137 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2138 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2139 dxva2_lib_deps="dxva2"
2140 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2141 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2142
2143 h263_vaapi_hwaccel_deps="vaapi"
2144 h263_vaapi_hwaccel_select="h263_decoder"
2145 h264_d3d11va_hwaccel_deps="d3d11va"
2146 h264_d3d11va_hwaccel_select="h264_decoder"
2147 h264_dxva2_hwaccel_deps="dxva2"
2148 h264_dxva2_hwaccel_select="h264_decoder"
2149 h264_mmal_hwaccel_deps="mmal"
2150 h264_qsv_hwaccel_deps="libmfx"
2151 h264_vaapi_hwaccel_deps="vaapi"
2152 h264_vaapi_hwaccel_select="h264_decoder"
2153 h264_vda_hwaccel_deps="vda"
2154 h264_vda_hwaccel_select="h264_decoder"
2155 h264_vda_old_hwaccel_deps="vda"
2156 h264_vda_old_hwaccel_select="h264_decoder"
2157 h264_vdpau_hwaccel_deps="vdpau"
2158 h264_vdpau_hwaccel_select="h264_decoder"
2159 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2160 hevc_d3d11va_hwaccel_select="hevc_decoder"
2161 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2162 hevc_dxva2_hwaccel_select="hevc_decoder"
2163 hevc_qsv_hwaccel_deps="libmfx"
2164 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2165 hevc_vaapi_hwaccel_select="hevc_decoder"
2166 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2167 hevc_vdpau_hwaccel_select="hevc_decoder"
2168 mpeg1_vdpau_hwaccel_deps="vdpau"
2169 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2170 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2171 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2172 mpeg2_dxva2_hwaccel_deps="dxva2"
2173 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2174 mpeg2_mmal_hwaccel_deps="mmal"
2175 mpeg2_qsv_hwaccel_deps="libmfx"
2176 mpeg2_vaapi_hwaccel_deps="vaapi"
2177 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2178 mpeg2_vdpau_hwaccel_deps="vdpau"
2179 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2180 mpeg4_vaapi_hwaccel_deps="vaapi"
2181 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2182 mpeg4_vdpau_hwaccel_deps="vdpau"
2183 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2184 vc1_d3d11va_hwaccel_deps="d3d11va"
2185 vc1_d3d11va_hwaccel_select="vc1_decoder"
2186 vc1_dxva2_hwaccel_deps="dxva2"
2187 vc1_dxva2_hwaccel_select="vc1_decoder"
2188 vc1_mmal_hwaccel_deps="mmal"
2189 vc1_qsv_hwaccel_deps="libmfx"
2190 vc1_vaapi_hwaccel_deps="vaapi"
2191 vc1_vaapi_hwaccel_select="vc1_decoder"
2192 vc1_vdpau_hwaccel_deps="vdpau"
2193 vc1_vdpau_hwaccel_select="vc1_decoder"
2194 vp8_qsv_hwaccel_deps="libmfx"
2195 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2196 vp8_vaapi_hwaccel_select="vp8_decoder"
2197 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2198 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2199 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2200 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2201
2202 # hardware-accelerated codecs
2203 nvenc_deps_any="dlopen LoadLibrary"
2204 nvenc_extralibs='$ldl'
2205 omx_deps="dlopen pthreads"
2206 omx_extralibs='$ldl'
2207 omx_rpi_select="omx"
2208 qsvdec_select="qsv"
2209 qsvenc_select="qsv"
2210 vaapi_encode_deps="vaapi"
2211
2212 hwupload_cuda_filter_deps="cuda"
2213 scale_npp_filter_deps="cuda libnpp"
2214
2215 h264_mmal_decoder_deps="mmal"
2216 h264_nvenc_encoder_deps="nvenc"
2217 h264_omx_encoder_deps="omx"
2218 h264_qsv_decoder_deps="libmfx"
2219 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2220 h264_qsv_encoder_deps="libmfx"
2221 h264_qsv_encoder_select="qsvenc"
2222 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2223 h264_vaapi_encoder_select="vaapi_encode golomb"
2224 hevc_nvenc_encoder_deps="nvenc"
2225 hevc_qsv_decoder_deps="libmfx"
2226 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2227 hevc_qsv_encoder_deps="libmfx"
2228 hevc_qsv_encoder_select="hevc_ps qsvenc"
2229 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2230 hevc_vaapi_encoder_select="vaapi_encode golomb"
2231 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2232 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2233 mpeg2_mmal_decoder_deps="mmal"
2234 mpeg2_qsv_decoder_deps="libmfx"
2235 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2236 mpeg2_qsv_encoder_deps="libmfx"
2237 mpeg2_qsv_encoder_select="qsvenc"
2238 mpeg4_omx_encoder_deps="omx"
2239 vc1_mmal_decoder_deps="mmal"
2240 vc1_qsv_decoder_deps="libmfx"
2241 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2242 vp8_qsv_decoder_deps="libmfx"
2243 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2244
2245 nvenc_h264_encoder_select="h264_nvenc_encoder"
2246 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2247
2248 # parsers
2249 h264_parser_select="golomb h264dsp h264parse"
2250 hevc_parser_select="hevc_ps"
2251 mpegaudio_parser_select="mpegaudioheader"
2252 mpegvideo_parser_select="mpegvideo"
2253 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2254 vc1_parser_select="vc1dsp"
2255
2256 # bitstream_filters
2257 mjpeg2jpeg_bsf_select="jpegtables"
2258
2259 # external libraries
2260 avisynth_deps="LoadLibrary"
2261 avxsynth_deps="dlopen"
2262 avisynth_demuxer_deps_any="avisynth avxsynth"
2263 avisynth_demuxer_select="riffdec"
2264 libdcadec_decoder_deps="libdcadec"
2265 libfaac_encoder_deps="libfaac"
2266 libfaac_encoder_select="audio_frame_queue"
2267 libfdk_aac_decoder_deps="libfdk_aac"
2268 libfdk_aac_encoder_deps="libfdk_aac"
2269 libfdk_aac_encoder_select="audio_frame_queue"
2270 libgsm_decoder_deps="libgsm"
2271 libgsm_encoder_deps="libgsm"
2272 libgsm_ms_decoder_deps="libgsm"
2273 libgsm_ms_encoder_deps="libgsm"
2274 libilbc_decoder_deps="libilbc"
2275 libilbc_encoder_deps="libilbc"
2276 libkvazaar_encoder_deps="libkvazaar"
2277 libmp3lame_encoder_deps="libmp3lame"
2278 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2279 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2280 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2281 libopencore_amrnb_encoder_select="audio_frame_queue"
2282 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2283 libopenh264_decoder_deps="libopenh264"
2284 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2285 libopenh264_encoder_deps="libopenh264"
2286 libopenjpeg_decoder_deps="libopenjpeg"
2287 libopenjpeg_encoder_deps="libopenjpeg"
2288 libopus_decoder_deps="libopus"
2289 libopus_encoder_deps="libopus"
2290 libopus_encoder_select="audio_frame_queue"
2291 libschroedinger_decoder_deps="libschroedinger"
2292 libschroedinger_encoder_deps="libschroedinger"
2293 libspeex_decoder_deps="libspeex"
2294 libspeex_encoder_deps="libspeex"
2295 libspeex_encoder_select="audio_frame_queue"
2296 libtheora_encoder_deps="libtheora"
2297 libtwolame_encoder_deps="libtwolame"
2298 libvo_aacenc_encoder_deps="libvo_aacenc"
2299 libvo_aacenc_encoder_select="audio_frame_queue"
2300 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2301 libvorbis_encoder_deps="libvorbis"
2302 libvorbis_encoder_select="audio_frame_queue"
2303 libvpx_vp8_decoder_deps="libvpx"
2304 libvpx_vp8_encoder_deps="libvpx"
2305 libvpx_vp9_decoder_deps="libvpx"
2306 libvpx_vp9_encoder_deps="libvpx"
2307 libwavpack_encoder_deps="libwavpack"
2308 libwavpack_encoder_select="audio_frame_queue"
2309 libwebp_encoder_deps="libwebp"
2310 libx262_encoder_deps="libx262"
2311 libx264_encoder_deps="libx264"
2312 libx265_encoder_deps="libx265"
2313 libxavs_encoder_deps="libxavs"
2314 libxvid_encoder_deps="libxvid mkstemp"
2315
2316 # demuxers / muxers
2317 ac3_demuxer_select="ac3_parser"
2318 asf_demuxer_select="riffdec"
2319 asf_muxer_select="riffenc"
2320 asf_stream_muxer_select="asf_muxer"
2321 avi_demuxer_select="iso_media riffdec"
2322 avi_muxer_select="riffenc"
2323 caf_demuxer_select="iso_media riffdec"
2324 dash_muxer_select="mp4_muxer"
2325 dirac_demuxer_select="dirac_parser"
2326 dv_demuxer_select="dvprofile"
2327 dv_muxer_select="dvprofile"
2328 dxa_demuxer_select="riffdec"
2329 eac3_demuxer_select="ac3_parser"
2330 f4v_muxer_select="mov_muxer"
2331 flac_demuxer_select="flac_parser"
2332 hds_muxer_select="flv_muxer"
2333 hls_muxer_select="mpegts_muxer"
2334 ipod_muxer_select="mov_muxer"
2335 ismv_muxer_select="mov_muxer"
2336 matroska_audio_muxer_select="matroska_muxer"
2337 matroska_demuxer_select="iso_media riffdec"
2338 matroska_demuxer_suggest="bzlib lzo zlib"
2339 matroska_muxer_select="iso_media riffenc"
2340 mmf_muxer_select="riffenc"
2341 mov_demuxer_select="iso_media riffdec"
2342 mov_demuxer_suggest="zlib"
2343 mov_muxer_select="iso_media riffenc rtpenc_chain"
2344 mp3_demuxer_select="mpegaudio_parser"
2345 mp3_muxer_select="mpegaudioheader"
2346 mp4_muxer_select="mov_muxer"
2347 mpegts_demuxer_select="iso_media"
2348 mpegts_muxer_select="adts_muxer latm_muxer"
2349 mpegtsraw_demuxer_select="mpegts_demuxer"
2350 mxf_d10_muxer_select="mxf_muxer"
2351 nut_muxer_select="riffenc"
2352 nuv_demuxer_select="riffdec"
2353 oga_muxer_select="ogg_muxer"
2354 ogg_demuxer_select="dirac_parse"
2355 opus_muxer_select="ogg_muxer"
2356 psp_muxer_select="mov_muxer"
2357 rtp_demuxer_select="sdp_demuxer"
2358 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2359 rtsp_demuxer_select="http_protocol rtpdec"
2360 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2361 sap_demuxer_select="sdp_demuxer"
2362 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2363 sdp_demuxer_select="rtpdec"
2364 smoothstreaming_muxer_select="ismv_muxer"
2365 spdif_muxer_select="aac_parser"
2366 spx_muxer_select="ogg_muxer"
2367 swf_demuxer_suggest="zlib"
2368 tak_demuxer_select="tak_parser"
2369 tg2_muxer_select="mov_muxer"
2370 tgp_muxer_select="mov_muxer"
2371 w64_demuxer_select="wav_demuxer"
2372 wav_demuxer_select="riffdec"
2373 wav_muxer_select="riffenc"
2374 webm_muxer_select="iso_media riffenc"
2375 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2376 wtv_demuxer_select="mpegts_demuxer riffdec"
2377 xmv_demuxer_select="riffdec"
2378 xwma_demuxer_select="riffdec"
2379
2380 # indevs / outdevs
2381 alsa_indev_deps="alsa"
2382 alsa_outdev_deps="alsa"
2383 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2384 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2385 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2386 dv1394_indev_deps="dv1394"
2387 dv1394_indev_select="dv_demuxer"
2388 fbdev_indev_deps="linux_fb_h"
2389 jack_indev_deps="jack"
2390 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2391 libcdio_indev_deps="libcdio"
2392 libdc1394_indev_deps="libdc1394"
2393 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2394 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2395 pulse_indev_deps="libpulse"
2396 sndio_indev_deps="sndio"
2397 sndio_outdev_deps="sndio"
2398 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2399 vfwcap_indev_deps="vfw32 vfwcap_defines"
2400 xcbgrab_indev_deps="libxcb"
2401
2402 # protocols
2403 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2404 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2405 ffrtmpcrypt_protocol_select="tcp_protocol"
2406 ffrtmphttp_protocol_deps="!librtmp_protocol"
2407 ffrtmphttp_protocol_select="http_protocol"
2408 gopher_protocol_select="network"
2409 http_protocol_select="tcp_protocol"
2410 httpproxy_protocol_select="tcp_protocol"
2411 https_protocol_select="tls_protocol"
2412 icecast_protocol_select="http_protocol"
2413 librtmp_protocol_deps="librtmp"
2414 librtmpe_protocol_deps="librtmp"
2415 librtmps_protocol_deps="librtmp"
2416 librtmpt_protocol_deps="librtmp"
2417 librtmpte_protocol_deps="librtmp"
2418 mmsh_protocol_select="http_protocol"
2419 mmst_protocol_select="network"
2420 rtmp_protocol_deps="!librtmp_protocol"
2421 rtmp_protocol_select="tcp_protocol"
2422 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2423 rtmps_protocol_deps="!librtmp_protocol"
2424 rtmps_protocol_select="tls_protocol"
2425 rtmpt_protocol_select="ffrtmphttp_protocol"
2426 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2427 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2428 rtp_protocol_select="udp_protocol"
2429 sctp_protocol_deps="struct_sctp_event_subscribe"
2430 sctp_protocol_select="network"
2431 srtp_protocol_select="rtp_protocol srtp"
2432 tcp_protocol_select="network"
2433 tls_gnutls_protocol_deps="gnutls"
2434 tls_gnutls_protocol_select="tcp_protocol"
2435 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2436 tls_openssl_protocol_select="tcp_protocol"
2437 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2438 udp_protocol_select="network"
2439 unix_protocol_deps="sys_un_h"
2440 unix_protocol_select="network"
2441
2442 # filters
2443 asyncts_filter_deps="avresample"
2444 blackframe_filter_deps="gpl"
2445 boxblur_filter_deps="gpl"
2446 bs2b_filter_deps="libbs2b"
2447 cropdetect_filter_deps="gpl"
2448 deinterlace_qsv_filter_deps="libmfx"
2449 deinterlace_vaapi_filter_deps="vaapi"
2450 delogo_filter_deps="gpl"
2451 drawtext_filter_deps="libfreetype"
2452 frei0r_filter_deps="frei0r dlopen"
2453 frei0r_filter_extralibs='$ldl'
2454 frei0r_src_filter_deps="frei0r dlopen"
2455 frei0r_src_filter_extralibs='$ldl'
2456 hdcd_filter_deps="libhdcd"
2457 hqdn3d_filter_deps="gpl"
2458 interlace_filter_deps="gpl"
2459 movie_filter_deps="avcodec avformat"
2460 ocv_filter_deps="libopencv"
2461 resample_filter_deps="avresample"
2462 scale_filter_deps="swscale"
2463 scale_qsv_filter_deps="libmfx"
2464 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2465
2466 # examples
2467 decode_audio_example_deps="avcodec avutil"
2468 decode_video_example_deps="avcodec avutil"
2469 encode_audio_example_deps="avcodec avutil"
2470 encode_video_example_deps="avcodec avutil"
2471 filter_audio_example_deps="avfilter avutil"
2472 metadata_example_deps="avformat avutil"
2473 output_example_deps="avcodec avformat avresample avutil swscale"
2474 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2475 transcode_aac_example_deps="avcodec avformat avresample"
2476
2477 # libraries, in linking order
2478 avcodec_deps="avutil"
2479 avcodec_select="null_bsf"
2480 avdevice_deps="avformat avcodec avutil"
2481 avfilter_deps="avutil"
2482 avformat_deps="avcodec avutil"
2483 avresample_deps="avutil"
2484 swscale_deps="avutil"
2485
2486 # programs
2487 avconv_deps="avcodec avfilter avformat avresample swscale"
2488 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2489 fps_filter null_filter resample_filter scale_filter
2490 trim_filter"
2491 avplay_deps="avcodec avfilter avformat avresample sdl"
2492 avplay_extralibs='$sdl_extralibs'
2493 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2494 avprobe_deps="avcodec avformat"
2495
2496 # documentation
2497 pod2man_deps="doc"
2498 texi2html_deps="doc"
2499
2500 # default parameters
2501
2502 logfile="avbuild/config.log"
2503
2504 # installation paths
2505 prefix_default="/usr/local"
2506 bindir_default='${prefix}/bin'
2507 datadir_default='${prefix}/share/avconv'
2508 docdir_default='${prefix}/share/doc/libav'
2509 incdir_default='${prefix}/include'
2510 libdir_default='${prefix}/lib'
2511 mandir_default='${prefix}/share/man'
2512 shlibdir_default="$libdir_default"
2513
2514 # toolchain
2515 ar_default="ar"
2516 cc_default="gcc"
2517 host_cc_default="gcc"
2518 ln_s="ln -s -f"
2519 nm_default="nm -g"
2520 objformat="elf"
2521 pkg_config_default=pkg-config
2522 ranlib="ranlib"
2523 strip="strip"
2524 version_script='--version-script'
2525 yasmexe="yasm"
2526
2527 # machine
2528 arch_default=$(uname -m)
2529 cpu="generic"
2530 intrinsics="none"
2531
2532 # OS
2533 target_os_default=$(tolower $(uname -s))
2534 host_os=$target_os_default
2535
2536 # configurable options
2537 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2538
2539 enable asm
2540 enable debug
2541 enable doc
2542 enable faan faandct faanidct
2543 enable optimizations
2544 enable safe_bitstream_reader
2545 enable static
2546 enable swscale_alpha
2547 enable valgrind_backtrace
2548
2549 # By default, enable only those hwaccels that have no external dependencies.
2550 enable d3d11va dxva2 vda vdpau
2551
2552 # build settings
2553 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2554 LIBPREF="lib"
2555 LIBSUF=".a"
2556 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2557 SLIBPREF="lib"
2558 SLIBSUF=".so"
2559 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2560 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2561 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2562 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2563 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2564 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2565 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2566
2567 asflags_filter=echo
2568 cflags_filter=echo
2569 ldflags_filter=echo
2570
2571 AS_C='-c'
2572 AS_O='-o $@'
2573 CC_C='-c'
2574 CC_E='-E -o $@'
2575 CC_O='-o $@'
2576 OBJCC_C='-c'
2577 OBJCC_E='-E -o $@'
2578 OBJCC_O='-o $@'
2579 LD_O='-o $@'
2580 LD_LIB='-l%'
2581 LD_PATH='-L'
2582 HOSTCC_C='-c'
2583 HOSTCC_E='-E -o $@'
2584 HOSTCC_O='-o $@'
2585 HOSTLD_O='-o $@'
2586
2587 host_extralibs='-lm'
2588 host_cflags_filter=echo
2589 host_ldflags_filter=echo
2590
2591 target_path='$(CURDIR)'
2592
2593 # since the object filename is not given with the -MM flag, the compiler
2594 # is only able to print the basename, and we must add the path ourselves
2595 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2596 DEPFLAGS='-MM'
2597
2598 # find source path
2599 if test -f configure; then
2600 source_path=.
2601 else
2602 source_path=$(cd $(dirname "$0"); pwd)
2603 echo "$source_path" | grep -q '[[:blank:]]' &&
2604 die "Out of tree builds are impossible with whitespace in source path."
2605 test -e "$source_path/config.h" &&
2606 die "Out of tree builds are impossible with config.h in source dir."
2607 fi
2608
2609 for v in "$@"; do
2610 r=${v#*=}
2611 l=${v%"$r"}
2612 r=$(sh_quote "$r")
2613 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2614 done
2615
2616 find_things(){
2617 thing=$1
2618 pattern=$2
2619 file=$source_path/$3
2620 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2621 }
2622
2623 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2624 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2625 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2626 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2627 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2628 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2629 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2630 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2631 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2632
2633 find_things_extern(){
2634 thing=$1
2635 pattern=$2
2636 file=$source_path/$3
2637 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2638 }
2639
2640 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2641 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2642
2643 ALL_COMPONENTS="
2644 $BSF_LIST
2645 $DECODER_LIST
2646 $DEMUXER_LIST
2647 $ENCODER_LIST
2648 $FILTER_LIST
2649 $HWACCEL_LIST
2650 $INDEV_LIST
2651 $MUXER_LIST
2652 $OUTDEV_LIST
2653 $PARSER_LIST
2654 $PROTOCOL_LIST
2655 "
2656
2657 for n in $COMPONENT_LIST; do
2658 v=$(toupper ${n%s})_LIST
2659 eval enable \$$v
2660 eval ${n}_if_any="\$$v"
2661 done
2662
2663 enable $ARCH_EXT_LIST
2664
2665 die_unknown(){
2666 echo "Unknown option \"$1\"."
2667 echo "See $0 --help for available options."
2668 exit 1
2669 }
2670
2671 print_3_columns() {
2672 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2673 }
2674
2675 show_list() {
2676 suffix=_$1
2677 shift
2678 echo $* | sed s/$suffix//g | print_3_columns
2679 exit 0
2680 }
2681
2682 rand_list(){
2683 IFS=', '
2684 set -- $*
2685 unset IFS
2686 for thing; do
2687 comp=${thing%:*}
2688 prob=${thing#$comp}
2689 prob=${prob#:}
2690 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2691 echo "prob ${prob:-0.5}"
2692 printf '%s\n' $comp
2693 done
2694 }
2695
2696 do_random(){
2697 action=$1
2698 shift
2699 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2700 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2701 }
2702
2703 for opt do
2704 optval="${opt#*=}"
2705 case "$opt" in
2706 --extra-ldflags=*)
2707 add_ldflags $optval
2708 ;;
2709 --extra-ldexeflags=*)
2710 add_ldexeflags $optval
2711 ;;
2712 --extra-libs=*)
2713 add_extralibs $optval
2714 ;;
2715 --disable-devices)
2716 disable $INDEV_LIST $OUTDEV_LIST
2717 ;;
2718 --enable-debug=*)
2719 debuglevel="$optval"
2720 ;;
2721 --disable-programs)
2722 disable $PROGRAM_LIST
2723 ;;
2724 --disable-everything)
2725 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2726 ;;
2727 --disable-all)
2728 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2729 disable $LIBRARY_LIST $PROGRAM_LIST doc
2730 ;;
2731 --enable-random|--disable-random)
2732 action=${opt%%-random}
2733 do_random ${action#--} $COMPONENT_LIST
2734 ;;
2735 --enable-random=*|--disable-random=*)
2736 action=${opt%%-random=*}
2737 do_random ${action#--} $optval
2738 ;;
2739 --enable-*=*|--disable-*=*)
2740 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2741 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2742 eval list=\$$(toupper $thing)_LIST
2743 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2744 $action $(filter "$name" $list)
2745 ;;
2746 --enable-avserver|--disable-avserver*)
2747 warn "avserver has been removed, the ${opt} option is only"\
2748 "provided for compatibility and will be removed in the future"
2749 ;;
2750 --enable-?*|--disable-?*)
2751 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2752 if is_in $option $COMPONENT_LIST; then
2753 test $action = disable && action=unset
2754 eval $action \$$(toupper ${option%s})_LIST
2755 elif is_in $option $CMDLINE_SELECT; then
2756 $action $option
2757 else
2758 die_unknown $opt
2759 fi
2760 ;;
2761 --list-*)
2762 NAME="${opt#--list-}"
2763 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2764 NAME=${NAME%s}
2765 eval show_list $NAME \$$(toupper $NAME)_LIST
2766 ;;
2767 --help|-h) show_help
2768 ;;
2769 --quiet|-q) quiet=yes
2770 ;;
2771 *)
2772 optname="${opt%%=*}"
2773 optname="${optname#--}"
2774 optname=$(echo "$optname" | sed 's/-/_/g')
2775 if is_in $optname $CMDLINE_SET; then
2776 eval $optname='$optval'
2777 elif is_in $optname $CMDLINE_APPEND; then
2778 append $optname "$optval"
2779 else
2780 die_unknown $opt
2781 fi
2782 ;;
2783 esac
2784 done
2785
2786 for e in $env; do
2787 eval "export $e"
2788 done
2789
2790 disabled logging && logfile=/dev/null
2791
2792 # Die early if licensing-related configure options are incompatible.
2793 die_license_disabled() {
2794 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2795 }
2796
2797 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2798 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2799 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2800
2801 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2802
2803 # Disable all the library-specific components if the library itself
2804 # is disabled, see AVCODEC_LIST and following _LIST variables.
2805
2806 disable_components(){
2807 disabled ${1} && disable $(
2808 eval components="\$$(toupper ${1})_COMPONENTS"
2809 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2810 )
2811 }
2812
2813 map 'disable_components $v' $LIBRARY_LIST
2814
2815 mkdir -p avbuild
2816 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2817 set >> $logfile
2818
2819 case "$toolchain" in
2820 *-asan)
2821 cc_default="${toolchain%-asan}"
2822 add_cflags -fsanitize=address
2823 add_ldflags -fsanitize=address
2824 ;;
2825 *-msan)
2826 cc_default="${toolchain%-msan}"
2827 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2828 add_ldflags -fsanitize=memory
2829 ;;
2830 *-tsan)
2831 cc_default="${toolchain%-tsan}"
2832 add_cflags -fsanitize=thread -fPIE
2833 add_ldflags -fsanitize=thread -pie
2834 case "$toolchain" in
2835 gcc-tsan)
2836 add_cflags -fPIC
2837 add_ldflags -fPIC
2838 ;;
2839 esac
2840 ;;
2841 *-usan)
2842 cc_default="${toolchain%-usan}"
2843 add_cflags -fsanitize=undefined
2844 add_ldflags -fsanitize=undefined
2845 case "$toolchain" in
2846 clang-usan)
2847 add_cflags -O1
2848 ;;
2849 esac
2850 ;;
2851 valgrind-*)
2852 target_exec_default="valgrind"
2853 case "$toolchain" in
2854 valgrind-massif)
2855 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2856 ;;
2857 valgrind-memcheck)
2858 target_exec_args="--track-origins=yes --leak-check=full"
2859 ;;
2860 esac
2861 ;;
2862 msvc)
2863 # Check whether the current MSVC version needs the C99 converter.
2864 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2865 # support enough of C99 to build libav. Default to the new
2866 # behaviour if the regexp was unable to match anything, since this
2867 # successfully parses the version number of existing supported
2868 # versions that require the converter (MSVC 2010 and 2012).
2869 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2870 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2871 cc_default="cl"
2872 else
2873 cc_default="c99wrap cl"
2874 fi
2875 ld_default="$source_path/compat/windows/mslink"
2876 nm_default="dumpbin -symbols"
2877 ar_default="lib"
2878 case "$arch" in
2879 arm*)
2880 as_default="armasm"
2881 ;;
2882 esac
2883 target_os_default="win32"
2884 # Use a relative path for TMPDIR. This makes sure all the
2885 # ffconf temp files are written with a relative path, avoiding
2886 # issues with msys/win32 path conversion for MSVC parameters
2887 # such as -Fo<file> or -out:<file>.
2888 TMPDIR=.
2889 ;;
2890 icl)
2891 cc_default="icl"
2892 ld_default="xilink"
2893 nm_default="dumpbin -symbols"
2894 ar_default="xilib"
2895 target_os_default="win32"
2896 TMPDIR=.
2897 ;;
2898 gcov)
2899 add_cflags -fprofile-arcs -ftest-coverage
2900 add_ldflags -fprofile-arcs -ftest-coverage
2901 ;;
2902 llvm-cov)
2903 add_cflags -fprofile-arcs -ftest-coverage
2904 add_ldflags --coverage
2905 ;;
2906 hardened)
2907 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2908 add_cflags -fno-strict-overflow -fstack-protector-all
2909 add_ldflags -Wl,-z,relro -Wl,-z,now
2910 ;;
2911 ?*)
2912 die "Unknown toolchain $toolchain"
2913 ;;
2914 esac
2915
2916 test -n "$cross_prefix" && enable cross_compile
2917
2918 if enabled cross_compile; then
2919 test -n "$arch" && test -n "$target_os" ||
2920 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2921 fi
2922
2923 ar_default="${cross_prefix}${ar_default}"
2924 cc_default="${cross_prefix}${cc_default}"
2925 occ_default="${cross_prefix}${occ_default}"
2926 nm_default="${cross_prefix}${nm_default}"
2927 pkg_config_default="${cross_prefix}${pkg_config_default}"
2928 ranlib="${cross_prefix}${ranlib}"
2929 strip="${cross_prefix}${strip}"
2930
2931 sysinclude_default="${sysroot}/usr/include"
2932
2933 set_default arch cc pkg_config sysinclude target_exec target_os
2934 enabled cross_compile || host_cc_default=$cc
2935 set_default host_cc
2936
2937 if ! $pkg_config --version >/dev/null 2>&1; then
2938 warn "$pkg_config not found, library detection may fail."
2939 pkg_config=false
2940 fi
2941
2942 exesuf() {
2943 case $1 in
2944 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2945 esac
2946 }
2947
2948 EXESUF=$(exesuf $target_os)
2949 HOSTEXESUF=$(exesuf $host_os)
2950
2951 # set temporary file name
2952 : ${TMPDIR:=$TEMPDIR}
2953 : ${TMPDIR:=$TMP}
2954 : ${TMPDIR:=/tmp}
2955
2956 if ! check_cmd mktemp -u XXXXXX; then
2957 # simple replacement for missing mktemp
2958 # NOT SAFE FOR GENERAL USE
2959 mktemp(){
2960 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2961 }
2962 fi
2963
2964 tmpfile(){
2965 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2966 (set -C; exec > $tmp) 2>/dev/null ||
2967 die "Unable to create temporary file in $TMPDIR."
2968 append TMPFILES $tmp
2969 eval $1=$tmp
2970 }
2971
2972 trap 'rm -f -- $TMPFILES' EXIT
2973
2974 tmpfile TMPASM .asm
2975 tmpfile TMPC .c
2976 tmpfile TMPE $EXESUF
2977 tmpfile TMPH .h
2978 tmpfile TMPO .o
2979 tmpfile TMPS .S
2980 tmpfile TMPSH .sh
2981 tmpfile TMPV .ver
2982
2983 unset -f mktemp
2984
2985 chmod +x $TMPE
2986
2987 # make sure we can execute files in $TMPDIR
2988 cat > $TMPSH 2>> $logfile <<EOF
2989 #! /bin/sh
2990 EOF
2991 chmod +x $TMPSH >> $logfile 2>&1
2992 if ! $TMPSH >> $logfile 2>&1; then
2993 cat <<EOF
2994 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2995 variable to another directory and make sure that it is not mounted noexec.
2996 EOF
2997 die "Sanity test failed."
2998 fi
2999
3000 armasm_flags(){
3001 for flag; do
3002 case $flag in
3003 # Filter out MSVC cl.exe options from cflags that shouldn't
3004 # be passed to gas-preprocessor
3005 -M[TD]*) ;;
3006 *) echo $flag ;;
3007 esac
3008 done
3009 }
3010
3011 ccc_flags(){
3012 for flag; do
3013 case $flag in
3014 -std=c99) echo -c99 ;;
3015 -mcpu=*) echo -arch ${flag#*=} ;;
3016 -mieee) echo -ieee ;;
3017 -O*|-fast) echo $flag ;;
3018 -fno-math-errno) echo -assume nomath_errno ;;
3019 -g) echo -g3 ;;
3020 -Wall) echo -msg_enable level2 ;;
3021 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3022 -Wl,*) echo $flag ;;
3023 -f*|-W*) ;;
3024 *) echo $flag ;;
3025 esac
3026 done
3027 }
3028
3029 cparser_flags(){
3030 for flag; do
3031 case $flag in
3032 -Wno-switch) echo -Wno-switch-enum ;;
3033 -Wno-format-zero-length) ;;
3034 -Wdisabled-optimization) ;;
3035 -Wno-pointer-sign) echo -Wno-other ;;
3036 *) echo $flag ;;
3037 esac
3038 done
3039 }
3040
3041 msvc_common_flags(){
3042 for flag; do
3043 case $flag in
3044 # In addition to specifying certain flags under the compiler
3045 # specific filters, they must be specified here as well or else the
3046 # generic catch all at the bottom will print the original flag.
3047 -Wall) ;;
3048 -Wextra) ;;
3049 -std=c99) ;;
3050 # Common flags
3051 -fomit-frame-pointer) ;;
3052 -g) echo -Z7 ;;
3053 -fno-math-errno) ;;
3054 -fno-common) ;;
3055 -fno-signed-zeros) ;;
3056 -fPIC) ;;
3057 -mthumb) ;;
3058 -march=*) ;;
3059 -lz) echo zlib.lib ;;
3060 -lx264) echo libx264.lib ;;
3061 -l*) echo ${flag#-l}.lib ;;
3062 -L*) echo -libpath:${flag#-L} ;;
3063 *) echo $flag ;;
3064 esac
3065 done
3066 }
3067
3068 msvc_flags(){
3069 msvc_common_flags "$@"
3070 for flag; do
3071 case $flag in
3072 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3073 -wd4554 ;;
3074 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3075 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3076 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3077 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3078 esac
3079 done
3080 }
3081
3082 icl_flags(){
3083 msvc_common_flags "$@"
3084 for flag; do
3085 case $flag in
3086 # Despite what Intel's documentation says -Wall, which is supported
3087 # on Windows, does enable remarks so disable them here.
3088 -Wall) echo $flag -Qdiag-disable:remark ;;
3089 -std=c99) echo -Qstd=c99 ;;
3090 esac
3091 done
3092 }
3093
3094 pgi_flags(){
3095 for flag; do
3096 case $flag in
3097 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3098 -fomit-frame-pointer) echo -Mnoframe ;;
3099 -g) echo -gopt ;;
3100 *) echo $flag ;;
3101 esac
3102 done
3103 }
3104
3105 suncc_flags(){
3106 for flag; do
3107 case $flag in
3108 -march=*|-mcpu=*)
3109 case "${flag#*=}" in
3110 native) echo -xtarget=native ;;
3111 v9|niagara) echo -xarch=sparc ;;
3112 ultrasparc) echo -xarch=sparcvis ;;
3113 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3114 i586|pentium) echo -xchip=pentium ;;
3115 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3116 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3117 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3118 pentium4*) echo -xtarget=pentium4 ;;
3119 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3120 *-sse3) echo -xarch=sse3 ;;
3121 core2) echo -xarch=ssse3 -xchip=core2 ;;
3122 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3123 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3124 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3125 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3126 k8|opteron|athlon64|athlon-fx)
3127 echo -xarch=sse2a ;;
3128 athlon*) echo -xarch=pentium_proa ;;
3129 esac
3130 ;;
3131 -std=c99) echo -xc99 ;;
3132 -fomit-frame-pointer) echo -xregs=frameptr ;;
3133 -fPIC) echo -KPIC -xcode=pic32 ;;
3134 -W*,*) echo $flag ;;
3135 -f*-*|-W*|-mimpure-text) ;;
3136 -shared) echo -G ;;
3137 *) echo $flag ;;
3138 esac
3139 done
3140 }
3141
3142 tms470_flags(){
3143 for flag; do
3144 case $flag in
3145 -march=*|-mcpu=*)
3146 case "${flag#*=}" in
3147 armv7-a|cortex-a*) echo -mv=7a8 ;;
3148 armv7-r|cortex-r*) echo -mv=7r4 ;;
3149 armv7-m|cortex-m*) echo -mv=7m3 ;;
3150 armv6*|arm11*) echo -mv=6 ;;
3151 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3152 echo -mv=5e ;;
3153 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3154 esac
3155 ;;
3156 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3157 -mfpu=vfp) echo --float_support=vfpv2 ;;
3158 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3159 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3160 -msoft-float) echo --float_support=vfplib ;;
3161 -O[0-3]|-mf=*) echo $flag ;;
3162 -g) echo -g -mn ;;
3163 -pds=*) echo $flag ;;
3164 -D*|-I*) echo $flag ;;
3165 --gcc|--abi=*) echo $flag ;;
3166 -me) echo $flag ;;
3167 esac
3168 done
3169 }
3170
3171 probe_cc(){
3172 pfx=$1
3173 _cc=$2
3174
3175 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3176 unset _ld_o _ldflags _ld_lib _ld_path
3177 unset _depflags _DEPCMD _DEPFLAGS
3178 _flags_filter=echo
3179
3180 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3181 _type=llvm_gcc
3182 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3183 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3184 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3185 _cflags_speed='-O3'
3186 _cflags_size='-Os'
3187 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3188 _type=gcc
3189 gcc_version=$($_cc --version | head -n1)
3190 gcc_basever=$($_cc -dumpversion)
3191 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3192 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3193 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3194 if ! $_cc -dumpversion | grep -q '^2\.'; then
3195 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3196 fi
3197 _cflags_speed='-O3'
3198 _cflags_size='-Os'
3199 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3200 _type=icc
3201 _ident=$($_cc --version | head -n1)
3202 _depflags='-MMD'
3203 _cflags_speed='-O3'
3204 _cflags_size='-Os'
3205 _cflags_noopt='-O1'
3206 elif $_cc -v 2>&1 | grep -q xlc; then
3207 _type=xlc
3208 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3209 _cflags_speed='-O5'
3210 _cflags_size='-O5 -qcompact'
3211 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3212 _type=ccc
3213 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3214 _DEPFLAGS='-M'
3215 _cflags_speed='-fast'
3216 _cflags_size='-O1'
3217 _flags_filter=ccc_flags
3218 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3219 test -d "$sysroot" || die "No valid sysroot specified."
3220 _type=armcc
3221 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3222 armcc_conf="$PWD/armcc.conf"
3223 $_cc --arm_linux_configure \
3224 --arm_linux_config_file="$armcc_conf" \
3225 --configure_sysroot="$sysroot" \
3226 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3227 die "Error creating armcc configuration file."
3228 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3229 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3230 as_default="${cross_prefix}gcc"
3231 _depflags='-MMD'
3232 _cflags_speed='-O3'
3233 _cflags_size='-Os'
3234 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3235 _type=tms470
3236 _ident=$($_cc -version | head -n1 | tr -s ' ')
3237 _flags='--gcc --abi=eabi -me'
3238 _cc_e='-ppl -fe=$@'
3239 _cc_o='-fe=$@'
3240 _depflags='-ppa -ppd=$(@:.o=.d)'
3241 _cflags_speed='-O3 -mf=5'
3242 _cflags_size='-O3 -mf=2'
3243 _flags_filter=tms470_flags
3244 elif $_cc -v 2>&1 | grep -q clang; then
3245 _type=clang
3246 _ident=$($_cc --version 2>/dev/null | head -n1)
3247 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3248 _cflags_speed='-O3'
3249 _cflags_size='-Os'
3250 elif $_cc -V 2>&1 | grep -q Sun; then
3251 _type=suncc
3252 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3253 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3254 _DEPFLAGS='-xM1 -xc99'
3255 _ldflags='-std=c99'
3256 _cflags_speed='-O5'
3257 _cflags_size='-O5 -xspace'
3258 _flags_filter=suncc_flags
3259 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3260 _type=pathscale
3261 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3262 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3263 _cflags_speed='-O2'
3264 _cflags_size='-Os'
3265 _flags_filter='filter_out -Wdisabled-optimization'
3266 elif $_cc -v 2>&1 | grep -q Open64; then
3267 _type=open64
3268 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3269 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3270 _cflags_speed='-O2'
3271 _cflags_size='-Os'
3272 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3273 elif $_cc -V 2>&1 | grep -q Portland; then
3274 _type=pgi
3275 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3276 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3277 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3278 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3279 _cflags_noopt="-O1"
3280 _flags_filter=pgi_flags
3281 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3282 _type=armasm
3283 _ident=$($_cc | head -n1)
3284 # 4509: "This form of conditional instruction is deprecated"
3285 _flags="-nologo -ignore 4509"
3286 _flags_filter=armasm_flags
3287 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3288 _type=msvc
3289 _ident=$($_cc 2>&1 | head -n1)
3290 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3291 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3292 _cflags_speed="-O2"
3293 _cflags_size="-O1"
3294 _cflags_noopt="-O1"
3295 if $_cc -nologo- 2>&1 | grep -q Linker; then
3296 _ld_o='-out:$@'
3297 else
3298 _ld_o='-Fe$@'
3299 fi
3300 _cc_o='-Fo$@'
3301 _cc_e='-P -Fi$@'
3302 _flags_filter=msvc_flags
3303 _ld_lib='lib%.a'
3304 _ld_path='-libpath:'
3305 _flags='-nologo'
3306 elif $_cc 2>&1 | grep -q Intel; then
3307 _type=icl
3308 _ident=$($_cc 2>&1 | head -n1)
3309 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3310 # Not only is O3 broken on 13.x+ but it is slower on all previous
3311 # versions (tested) as well.
3312 _cflags_speed="-O2"
3313 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3314 if $_cc 2>&1 | grep -q Linker; then
3315 _ld_o='-out:$@'
3316 else
3317 _ld_o='-Fe$@'
3318 fi
3319 _cc_o='-Fo$@'
3320 _cc_e='-P'
3321 _flags_filter=icl_flags
3322 _ld_lib='lib%.a'
3323 _ld_path='-libpath:'
3324 # -Qdiag-error to make icl error when seeing certain unknown arguments
3325 _flags='-nologo -Qdiag-error:4044,10157'
3326 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3327 # with MSVC which enables it by default.
3328 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3329 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3330 # lld can emulate multiple different linkers; in ms link.exe mode,
3331 # the -? parameter gives the help output which contains an identifyable
3332 # string, while it gives an error in other modes.
3333 _type=lld-link
3334 # The link.exe mode doesn't have a switch for getting the version,
3335 # but we can force it back to gnu mode and get the version from there.
3336 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3337 _ld_o='-out:$@'
3338 _flags_filter=msvc_flags
3339 _ld_lib='lib%.a'
3340 _ld_path='-libpath:'
3341 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3342 _type=cparser
3343 _ident=$($_cc --version | head -n1)
3344 _depflags='-MMD'
3345 _cflags_speed='-O4'
3346 _cflags_size='-O2'
3347 _flags_filter=cparser_flags
3348 fi
3349
3350 eval ${pfx}_type=\$_type
3351 eval ${pfx}_ident=\$_ident
3352 }
3353
3354 set_ccvars(){
3355 eval ${1}_C=\${_cc_c-\${${1}_C}}
3356 eval ${1}_E=\${_cc_e-\${${1}_E}}
3357 eval ${1}_O=\${_cc_o-\${${1}_O}}
3358
3359 if [ -n "$_depflags" ]; then
3360 eval ${1}_DEPFLAGS=\$_depflags
3361 else
3362 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3363 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3364 eval DEP${1}FLAGS=\$_flags
3365 fi
3366 }
3367
3368 probe_cc cc "$cc"
3369 cflags_filter=$_flags_filter
3370 cflags_speed=$_cflags_speed
3371 cflags_size=$_cflags_size
3372 cflags_noopt=$_cflags_noopt
3373 add_cflags $_flags $_cflags
3374 cc_ldflags=$_ldflags
3375 set_ccvars CC
3376
3377 probe_cc hostcc "$host_cc"
3378 host_cflags_filter=$_flags_filter
3379 host_cflags_speed=$_cflags_speed
3380 add_host_cflags $_flags $_cflags
3381 set_ccvars HOSTCC
3382
3383 test -n "$cc_type" && enable $cc_type ||
3384 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3385
3386 : ${as_default:=$cc}
3387 : ${objcc_default:=$cc}
3388 : ${dep_cc_default:=$cc}
3389 : ${ld_default:=$cc}
3390 : ${host_ld_default:=$host_cc}
3391 set_default ar as objcc dep_cc ld host_ld
3392
3393 probe_cc as "$as"
3394 asflags_filter=$_flags_filter
3395 add_asflags $_flags $_cflags
3396 set_ccvars AS
3397
3398 probe_cc objcc "$objcc"
3399 objcflags_filter=$_flags_filter
3400 add_objcflags $_flags $_cflags
3401 set_ccvars OBJC
3402
3403 probe_cc ld "$ld"
3404 ldflags_filter=$_flags_filter
3405 add_ldflags $_flags $_ldflags
3406 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3407 LD_O=${_ld_o-$LD_O}
3408 LD_LIB=${_ld_lib-$LD_LIB}
3409 LD_PATH=${_ld_path-$LD_PATH}
3410
3411 probe_cc hostld "$host_ld"
3412 host_ldflags_filter=$_flags_filter
3413 add_host_ldflags $_flags $_ldflags
3414 HOSTLD_O=${_ld_o-$HOSTLD_O}
3415
3416 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3417 probe_cc depcc "$dep_cc"
3418 CCDEP=${_DEPCMD:-$DEPCMD}
3419 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3420 DEPCCFLAGS=$_flags
3421 fi
3422
3423 if $ar 2>&1 | grep -q Microsoft; then
3424 arflags="-nologo"
3425 ar_o='-out:$@'
3426 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3427 arflags="rq"
3428 ar_o='$@'
3429 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3430 arflags='-Xany -r -c'
3431 ar_o='$@'
3432 else
3433 arflags="rc"
3434 ar_o='$@'
3435 fi
3436
3437 add_cflags $extra_cflags
3438 add_objcflags $extra_objcflags
3439 add_asflags $extra_cflags
3440
3441 if test -n "$sysroot"; then
3442 case "$cc_type" in
3443 gcc|llvm_gcc|clang)
3444 add_cppflags --sysroot="$sysroot"
3445 add_ldflags --sysroot="$sysroot"
3446 ;;
3447 tms470)
3448 add_cppflags -I"$sysinclude"
3449 add_ldflags --sysroot="$sysroot"
3450 ;;
3451 esac
3452 fi
3453
3454 if test "$cpu" = host; then
3455 enabled cross_compile &&
3456 die "--cpu=host makes no sense when cross-compiling."
3457
3458 case "$cc_type" in
3459 gcc|llvm_gcc)
3460 check_native(){
3461 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3462 sed -n "/cc1.*$1=/{
3463 s/.*$1=\\([^ ]*\\).*/\\1/
3464 p
3465 q
3466 }" $TMPE
3467 }
3468 cpu=$(check_native -march || check_native -mcpu)
3469 ;;
3470 esac
3471
3472 test "${cpu:-host}" = host &&
3473 die "--cpu=host not supported with compiler $cc"
3474 fi
3475
3476 # Deal with common $arch aliases
3477 case "$arch" in
3478 aarch64|arm64)
3479 arch="aarch64"
3480 ;;
3481 arm*)
3482 arch="arm"
3483 ;;
3484 mips*|IP*)
3485 case "$arch" in
3486 *el)
3487 add_cppflags -EL
3488 add_ldflags -EL
3489 ;;
3490 *eb)
3491 add_cppflags -EB
3492 add_ldflags -EB
3493 ;;
3494 esac
3495 arch="mips"
3496 ;;
3497 parisc*|hppa*)
3498 arch="parisc"
3499 ;;
3500 "Power Macintosh"|ppc*|powerpc*)
3501 arch="ppc"
3502 ;;
3503 s390|s390x)
3504 arch="s390"
3505 ;;
3506 sh4|sh)
3507 arch="sh4"
3508 ;;
3509 sun4u|sparc*)
3510 arch="sparc"
3511 ;;
3512 tilegx|tile-gx)
3513 arch="tilegx"
3514 ;;
3515 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3516 arch="x86"
3517 ;;
3518 esac
3519
3520 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3521 enable $arch
3522
3523 # Add processor-specific flags
3524 if enabled aarch64; then
3525
3526 case $cpu in
3527 armv*)
3528 cpuflags="-march=$cpu"
3529 ;;
3530 *)
3531 cpuflags="-mcpu=$cpu"
3532 ;;
3533 esac
3534
3535 elif enabled alpha; then
3536
3537 cpuflags="-mcpu=$cpu"
3538
3539 elif enabled arm; then
3540
3541 check_arm_arch() {
3542 check_cpp_condition stddef.h \
3543 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3544 $cpuflags
3545 }
3546
3547 probe_arm_arch() {
3548 if check_arm_arch 4; then echo armv4
3549 elif check_arm_arch 4T; then echo armv4t
3550 elif check_arm_arch 5; then echo armv5
3551 elif check_arm_arch 5E; then echo armv5e
3552 elif check_arm_arch 5T; then echo armv5t
3553 elif check_arm_arch 5TE; then echo armv5te
3554 elif check_arm_arch 5TEJ; then echo armv5te
3555 elif check_arm_arch 6; then echo armv6
3556 elif check_arm_arch 6J; then echo armv6j
3557 elif check_arm_arch 6K; then echo armv6k
3558 elif check_arm_arch 6Z; then echo armv6z
3559 elif check_arm_arch 6ZK; then echo armv6zk
3560 elif check_arm_arch 6T2; then echo armv6t2
3561 elif check_arm_arch 7; then echo armv7
3562 elif check_arm_arch 7A 7_A; then echo armv7-a
3563 elif check_arm_arch 7S; then echo armv7-a
3564 elif check_arm_arch 7R 7_R; then echo armv7-r
3565 elif check_arm_arch 7M 7_M; then echo armv7-m
3566 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3567 elif check_arm_arch 8A 8_A; then echo armv8-a
3568 fi
3569 }
3570
3571 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3572
3573 case $cpu in
3574 armv*)
3575 cpuflags="-march=$cpu"
3576 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3577 ;;
3578 *)
3579 cpuflags="-mcpu=$cpu"
3580 case $cpu in
3581 cortex-a*) subarch=armv7a ;;
3582 cortex-r*) subarch=armv7r ;;
3583 cortex-m*) enable thumb; subarch=armv7m ;;
3584 arm11*) subarch=armv6 ;;
3585 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3586 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3587 *) subarch=$(probe_arm_arch) ;;
3588 esac
3589 ;;
3590 esac
3591
3592 case "$subarch" in
3593 armv5t*) enable fast_clz ;;
3594 armv[6-8]*) enable fast_clz fast_unaligned ;;
3595 esac
3596
3597 elif enabled avr32; then
3598
3599 case $cpu in
3600 ap7[02]0[0-2])
3601 subarch="avr32_ap"
3602 cpuflags="-mpart=$cpu"
3603 ;;
3604 ap)
3605 subarch="avr32_ap"
3606 cpuflags="-march=$cpu"
3607 ;;
3608 uc3[ab]*)
3609 subarch="avr32_uc"
3610 cpuflags="-mcpu=$cpu"
3611 ;;
3612 uc)
3613 subarch="avr32_uc"
3614 cpuflags="-march=$cpu"
3615 ;;
3616 esac
3617
3618 elif enabled bfin; then
3619
3620 cpuflags="-mcpu=$cpu"
3621
3622 elif enabled mips; then
3623
3624 cpuflags="-march=$cpu"
3625
3626 elif enabled ppc; then
3627
3628 disable ldbrx
3629
3630 case $(tolower $cpu) in
3631 601|ppc601|powerpc601)
3632 cpuflags="-mcpu=601"
3633 disable altivec
3634 ;;
3635 603*|ppc603*|powerpc603*)
3636 cpuflags="-mcpu=603"
3637 disable altivec
3638 ;;
3639 604*|ppc604*|powerpc604*)
3640 cpuflags="-mcpu=604"
3641 disable altivec
3642 ;;
3643 g3|75*|ppc75*|powerpc75*)
3644 cpuflags="-mcpu=750"
3645 disable altivec
3646 ;;
3647 g4|745*|ppc745*|powerpc745*)
3648 cpuflags="-mcpu=7450"
3649 disable vsx
3650 ;;
3651 74*|ppc74*|powerpc74*)
3652 cpuflags="-mcpu=7400"
3653 disable vsx
3654 ;;
3655 g5|970|ppc970|powerpc970)
3656 cpuflags="-mcpu=970"
3657 disable vsx
3658 ;;
3659 power[3-6]*)
3660 cpuflags="-mcpu=$cpu"
3661 disable vsx
3662 ;;
3663 power[7-8]*)
3664 cpuflags="-mcpu=$cpu"
3665 enable ldbrx
3666 ;;
3667 cell)
3668 cpuflags="-mcpu=cell"
3669 enable ldbrx
3670 disable vsx
3671 ;;
3672 e500mc)
3673 cpuflags="-mcpu=e500mc"
3674 disable altivec
3675 ;;
3676 e500v2)
3677 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3678 disable altivec
3679 disable dcbzl
3680 ;;
3681 e500)
3682 cpuflags="-mcpu=8540 -mhard-float"
3683 disable altivec
3684 disable dcbzl
3685 ;;
3686 esac
3687
3688 elif enabled sparc; then
3689
3690 case $cpu in
3691 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3692 cpuflags="-mcpu=$cpu"
3693 ;;
3694 ultrasparc*|niagara[234])
3695 cpuflags="-mcpu=$cpu"
3696 ;;
3697 esac
3698
3699 elif enabled x86; then
3700
3701 case $cpu in
3702 i[345]86|pentium)
3703 cpuflags="-march=$cpu"
3704 disable i686
3705 disable mmx
3706 ;;
3707 # targets that do NOT support nopl and conditional mov (cmov)
3708 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3709 cpuflags="-march=$cpu"
3710 disable i686
3711 ;;
3712 # targets that do support nopl and conditional mov (cmov)
3713 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3714 cpuflags="-march=$cpu"
3715 enable i686
3716 enable fast_cmov
3717 ;;
3718 # targets that do support conditional mov but on which it's slow
3719 pentium4|pentium4m|prescott|nocona)
3720 cpuflags="-march=$cpu"
3721 enable i686
3722 disable fast_cmov
3723 ;;
3724 esac
3725
3726 fi
3727
3728 if [ "$cpu" != generic ]; then
3729 add_cflags $cpuflags
3730 add_asflags $cpuflags
3731 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3732 fi
3733
3734 # compiler sanity check
3735 check_exec <<EOF
3736 int main(void){ return 0; }
3737 EOF
3738 if test "$?" != 0; then
3739 echo "$cc is unable to create an executable file."
3740 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3741 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3742 echo "Only do this if you know what cross compiling means."
3743 fi
3744 die "C compiler test failed."
3745 fi
3746
3747 add_cppflags -D_ISOC99_SOURCE
3748
3749 # some compilers silently accept -std=c11, so we also need to check that the
3750 # version macro is defined properly
3751 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3752 add_cflags -std=c11
3753 else
3754 check_cflags -std=c99
3755 fi
3756
3757 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3758 #include <stdlib.h>
3759 EOF
3760 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3761 #include <stdlib.h>
3762 EOF
3763
3764 add_host_cppflags -D_ISOC99_SOURCE
3765 check_host_cflags -std=c99
3766 check_host_cflags -Wall
3767 check_host_cflags $host_cflags_speed
3768
3769 check_64bit(){
3770 arch32=$1
3771 arch64=$2
3772 expr=$3
3773 check_code cc "" "int test[2*($expr) - 1]" &&
3774 subarch=$arch64 || subarch=$arch32
3775 }
3776
3777 case "$arch" in
3778 aarch64|alpha|ia64)
3779 spic=$shared
3780 ;;
3781 mips)
3782 check_64bit mips mips64 '_MIPS_SIM > 1'
3783 spic=$shared
3784 ;;
3785 parisc)
3786 check_64bit parisc parisc64 'sizeof(void *) > 4'
3787 spic=$shared
3788 ;;
3789 ppc)
3790 check_64bit ppc ppc64 'sizeof(void *) > 4'
3791 spic=$shared
3792 ;;
3793 s390)
3794 check_64bit s390 s390x 'sizeof(void *) > 4'
3795 spic=$shared
3796 ;;
3797 sparc)
3798 check_64bit sparc sparc64 'sizeof(void *) > 4'
3799 spic=$shared
3800 ;;
3801 x86)
3802 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3803 if test "$subarch" = "x86_64"; then
3804 spic=$shared
3805 fi
3806 ;;
3807 esac
3808
3809 enable $subarch
3810 enabled spic && enable_weak pic
3811
3812 # OS specific
3813 case $target_os in
3814 aix)
3815 SHFLAGS=-shared
3816 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3817 enabled shared && add_ldflags -Wl,-brtl
3818 ;;
3819 android)
3820 disable symver
3821 enable section_data_rel_ro
3822 SLIB_INSTALL_NAME='$(SLIBNAME)'
3823 SLIB_INSTALL_LINKS=
3824 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3825 ;;
3826 haiku)
3827 prefix_default="/boot/common"
3828 network_extralibs="-lnetwork"
3829 host_extralibs=
3830 ;;
3831 sunos)
3832 SHFLAGS='-shared -Wl,-h,$$(@F)'
3833 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3834 network_extralibs="-lsocket -lnsl"
3835 # When using suncc to build, the Solaris linker will mark
3836 # an executable with each instruction set encountered by
3837 # the Solaris assembler. As our libraries contain their own
3838 # guards for processor-specific code, instead suppress
3839 # generation of the HWCAPS ELF section on Solaris x86 only.
3840 enabled_all suncc x86 &&
3841 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3842 add_ldflags -Wl,-M,mapfile
3843 nm_default='nm -P -g'
3844 version_script='-M'
3845 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3846 ;;
3847 netbsd)
3848 disable symver
3849 oss_indev_extralibs="-lossaudio"
3850 oss_outdev_extralibs="-lossaudio"
3851 ;;
3852 openbsd|bitrig)
3853 disable symver
3854 SHFLAGS='-shared'
3855 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3856 SLIB_INSTALL_LINKS=
3857 oss_indev_extralibs="-lossaudio"
3858 oss_outdev_extralibs="-lossaudio"
3859 ;;
3860 dragonfly)
3861 disable symver
3862 ;;
3863 freebsd)
3864 ;;
3865 bsd/os)
3866 add_extralibs -lpoll -lgnugetopt
3867 ;;
3868 darwin)
3869 enabled ppc && add_asflags -force_cpusubtype_ALL
3870 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3871 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3872 add_ldflags -Wl,-dynamic,-search_paths_first
3873 SLIBSUF=".dylib"
3874 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3875 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3876 objformat="macho"
3877 enabled x86_64 && objformat="macho64"
3878 enabled_any pic shared ||
3879 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3880 check_header dispatch/dispatch.h &&
3881 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3882 ;;
3883 msys*)
3884 die "Native MSYS builds are discouraged, please use the MINGW environment."
3885 ;;
3886 mingw32*|mingw64*)
3887 if test $target_os = "mingw32ce"; then
3888 disable network
3889 else
3890 target_os=mingw32
3891 fi
3892 LIBTARGET=i386
3893 if enabled x86_64; then
3894 LIBTARGET="i386:x86-64"
3895 elif enabled arm; then
3896 LIBTARGET=arm-wince
3897 fi
3898 check_ldflags -Wl,--nxcompat
3899 check_ldflags -Wl,--dynamicbase
3900 shlibdir_default="$bindir_default"
3901 SLIBPREF=""
3902 SLIBSUF=".dll"
3903 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3904 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3905 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3906 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3907 SLIB_INSTALL_LINKS=
3908 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3909 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3910 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3911 objformat="win32"
3912 dlltool="${cross_prefix}dlltool"
3913 ranlib=:
3914 enable dos_paths
3915 ;;
3916 win32|win64)
3917 disable symver
3918 if enabled shared; then
3919 # Link to the import library instead of the normal static library
3920 # for shared libs.
3921 LD_LIB='%.lib'
3922 # Cannot build both shared and static libs with MSVC or icl.
3923 disable static
3924 fi
3925 shlibdir_default="$bindir_default"
3926 SLIBPREF=""
3927 SLIBSUF=".dll"
3928 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3929 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3930 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3931 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3932 SLIB_INSTALL_LINKS=
3933 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3934 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3935 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3936 objformat="win32"
3937 ranlib=:
3938 enable dos_paths
3939 ;;
3940 cygwin*)
3941 target_os=cygwin
3942 shlibdir_default="$bindir_default"
3943 SLIBPREF="cyg"
3944 SLIBSUF=".dll"
3945 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3946 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3947 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3948 SLIB_INSTALL_LINKS=
3949 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3950 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3951 objformat="win32"
3952 enable dos_paths
3953 ;;
3954 *-dos|freedos|opendos)
3955 network_extralibs="-lsocket"
3956 objformat="coff"
3957 enable dos_paths
3958 add_cppflags -U__STRICT_ANSI__
3959 ;;
3960 linux)
3961 enable dv1394
3962 enable section_data_rel_ro
3963 ;;
3964 irix*)
3965 target_os=irix
3966 ranlib="echo ignoring ranlib"
3967 ;;
3968 os/2*)
3969 ln_s="cp -f"
3970 objformat="aout"
3971 add_cppflags -D_GNU_SOURCE
3972 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3973 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3974 LIBSUF="_s.a"
3975 SLIBPREF=""
3976 SLIBSUF=".dll"
3977 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3978 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3979 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3980 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3981 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3982 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3983 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3984 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3985 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3986 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3987 enable dos_paths
3988 ;;
3989 gnu/kfreebsd)
3990 add_cppflags -D_BSD_SOURCE
3991 ;;
3992 gnu)
3993 ;;
3994 qnx)
3995 add_cppflags -D_QNX_SOURCE
3996 network_extralibs="-lsocket"
3997 ;;
3998 symbian)
3999 SLIBSUF=".dll"
4000 enable dos_paths
4001 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4002 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4003 add_ldflags -Wl,--target1-abs,--no-undefined \
4004 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4005 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4006 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4007 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4008 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4009 ;;
4010 osf1)
4011 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4012 ;;
4013 minix)
4014 ;;
4015 none)
4016 ;;
4017 *)
4018 die "Unknown OS '$target_os'."
4019 ;;
4020 esac
4021
4022 # determine libc flavour
4023
4024 probe_libc(){
4025 pfx=$1
4026 pfx_no_=${pfx%_}
4027 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4028 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4029 eval ${pfx}libc_type=uclibc
4030 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4031 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4032 eval ${pfx}libc_type=glibc
4033 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4034 # MinGW headers can be installed on Cygwin, so check for newlib first.
4035 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4036 eval ${pfx}libc_type=newlib
4037 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4038 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4039 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4040 eval ${pfx}libc_type=mingw64
4041 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4042 eval test \$${pfx_no_}cc_type = "gcc" &&
4043 add_${pfx}cppflags -D__printf__=__gnu_printf__
4044 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4045 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4046 eval ${pfx}libc_type=mingw32
4047 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4048 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4049 die "ERROR: MinGW32 runtime version must be >= 3.15."
4050 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4051 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4052 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4053 eval test \$${pfx_no_}cc_type = "gcc" &&
4054 add_${pfx}cppflags -D__printf__=__gnu_printf__
4055 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4056 eval ${pfx}libc_type=msvcrt
4057 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4058 if [ "$pfx" = host_ ]; then
4059 add_host_cppflags -Dsnprintf=_snprintf
4060 else
4061 add_compat strtod.o strtod=avpriv_strtod
4062 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4063 _snprintf=avpriv_snprintf \
4064 vsnprintf=avpriv_vsnprintf
4065 fi
4066 fi
4067 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4068 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4069 # 0x601 by default unless something else is set by the user.
4070 # This can easily lead to us detecting functions only present
4071 # in such new versions and producing binaries requiring windows 7.0.
4072 # Therefore explicitly set the default to XP unless the user has
4073 # set something else on the command line.
4074 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4075 # family. For these cases, configure is free to use any functions
4076 # found in the SDK headers by default. (Alternatively, we could force
4077 # _WIN32_WINNT to 0x0602 in that case.)
4078 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4079 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4080 #ifdef WINAPI_FAMILY
4081 #include <winapifamily.h>
4082 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4083 #error not desktop
4084 #endif
4085 #endif
4086 EOF
4087 if [ "$pfx" = "" ]; then
4088 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4089 fi
4090 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4091 eval ${pfx}libc_type=klibc
4092 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4093 eval ${pfx}libc_type=bionic
4094 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4095 eval ${pfx}libc_type=solaris
4096 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4097 else
4098 eval ${pfx}libc_type=default
4099 add_${pfx}cppflags -D_DEFAULT_SOURCE
4100 fi
4101 }
4102
4103 probe_libc
4104 test -n "$libc_type" && enable libc_$libc_type
4105 probe_libc host_
4106 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4107
4108 case $libc_type in
4109 bionic)
4110 add_compat strtod.o strtod=avpriv_strtod
4111 ;;
4112 esac
4113
4114 # hacks for compiler/libc/os combinations
4115
4116 if enabled_all tms470 libc_glibc; then
4117 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4118 add_cppflags -D__USER_LABEL_PREFIX__=
4119 add_cppflags -D__builtin_memset=memset
4120 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4121 add_cflags -pds=48 # incompatible redefinition of macro
4122 fi
4123
4124 if enabled_all ccc libc_glibc; then
4125 add_ldflags -Wl,-z,now # calls to libots crash without this
4126 fi
4127
4128 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4129 add_cppflags '-I\$(SRC_PATH)/compat/float'
4130
4131 esc(){
4132 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4133 }
4134
4135 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4136
4137 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4138
4139 set_default $PATHS_LIST
4140 set_default nm
4141
4142 # we need to build at least one lib type
4143 if ! enabled_any static shared; then
4144 cat <<EOF
4145 At least one library type must be built.
4146 Specify --enable-static to build the static libraries or --enable-shared to
4147 build the shared libraries as well. To only build the shared libraries specify
4148 --disable-static in addition to --enable-shared.
4149 EOF
4150 exit 1
4151 fi
4152
4153 disabled optimizations || check_cflags -fomit-frame-pointer
4154
4155 enable_weak_pic() {
4156 disabled pic && return
4157 enable pic
4158 add_cppflags -DPIC
4159 case "$target_os" in
4160 mingw*|cygwin*)
4161 ;;
4162 *)
4163 add_cflags -fPIC
4164 ;;
4165 esac
4166 add_asflags -fPIC
4167 }
4168
4169 enabled pic && enable_weak_pic
4170
4171 check_cc <<EOF || die "Symbol mangling check failed."
4172 int ff_extern;
4173 EOF
4174 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4175 extern_prefix=${sym%%ff_extern*}
4176
4177 check_cc <<EOF && enable_weak inline_asm
4178 void foo(void) { __asm__ volatile ("" ::); }
4179 EOF
4180
4181 _restrict=
4182 for restrict_keyword in restrict __restrict__ __restrict; do
4183 check_cc <<EOF && _restrict=$restrict_keyword && break
4184 void foo(char * $restrict_keyword p);
4185 EOF
4186 done
4187
4188 check_cc <<EOF && enable pragma_deprecated
4189 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4190 EOF
4191
4192 check_cc <<EOF && enable attribute_packed
4193 struct { int x; } __attribute__((packed)) x;
4194 EOF
4195
4196 check_cc <<EOF && enable attribute_may_alias
4197 union { int x; } __attribute__((may_alias)) x;
4198 EOF
4199
4200 check_cc <<EOF || die "endian test failed"
4201 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4202 EOF
4203 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4204
4205 check_gas() {
4206 log "check_gas using '$as' as AS"
4207 # :vararg is used on aarch64, arm and ppc altivec
4208 check_as <<EOF || return 1
4209 .macro m n, y:vararg=0
4210 \n: .int \y
4211 .endm
4212 m x
4213 EOF
4214 # .altmacro is only used in arm asm
4215 ! enabled arm || check_as <<EOF || return 1
4216 .altmacro
4217 EOF
4218 enable gnu_as
4219 return 0
4220 }
4221
4222 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4223 nogas=:
4224 enabled_any arm aarch64 && nogas=die
4225 enabled_all ppc altivec && nogas=warn
4226 as_noop=-v
4227
4228 case $as_type in
4229 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4230 gcc) gaspp_as_type=gas ;;
4231 *) gaspp_as_type=$as_type ;;
4232 esac
4233
4234 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4235
4236 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4237 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4238
4239 if ! check_gas ; then
4240 as=${gas:=$as}
4241 check_gas || \
4242 $nogas "GNU assembler not found, install/update gas-preprocessor"
4243 fi
4244
4245 check_as <<EOF && enable as_func
4246 .func test
4247 .endfunc
4248 EOF
4249 fi
4250
4251 check_inline_asm inline_asm_labels '"1:\n"'
4252
4253 if enabled aarch64; then
4254 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4255 # internal assembler in clang 3.3 does not support this instruction
4256 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4257 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4258
4259 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4260
4261 elif enabled alpha; then
4262
4263 check_cflags -mieee
4264
4265 elif enabled arm; then
4266
4267 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4268 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4269 enabled thumb && check_cflags -mthumb || check_cflags -marm
4270
4271 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4272 enable vfp_args
4273 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4274 enable vfp_args
4275 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4276 case "${cross_prefix:-$cc}" in
4277 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4278 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4279 __asm__ (".eabi_attribute 28, 1");
4280 int main(void) { return 0; }
4281 EOF
4282 esac
4283 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4284 fi
4285
4286 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4287 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4288 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4289 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4290 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4291 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4292
4293 [ $target_os = linux ] || [ $target_os = android ] ||
4294 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4295 $ARCH_EXT_LIST_ARM
4296
4297 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4298
4299 check_as <<EOF && enable as_dn_directive
4300 ra .dn d0.i16
4301 .unreq ra
4302 EOF
4303 check_as <<EOF && enable as_fpu_directive
4304 .fpu neon
4305 EOF
4306
4307 # llvm's integrated assembler supports .object_arch from llvm 3.5
4308 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4309 .object_arch armv4
4310 EOF
4311
4312 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4313
4314 elif enabled mips; then
4315
4316 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4317
4318 # make sure that only an instruction set is enabled
4319 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4320
4321 if enabled mips64; then
4322 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4323 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4324 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4325 else
4326 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4327 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4328 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4329 fi
4330
4331 elif enabled parisc; then
4332
4333 if enabled gcc; then
4334 case $($cc -dumpversion) in
4335 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4336 esac
4337 fi
4338
4339 elif enabled ppc; then
4340
4341 enable local_aligned_8 local_aligned_16 local_aligned_32
4342
4343 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4344 check_inline_asm ibm_asm '"add 0, 0, 0"'
4345 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4346 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4347
4348 # AltiVec flags: The FSF version of GCC differs from the Apple version
4349 if enabled altivec; then
4350 check_cflags -maltivec -mabi=altivec &&
4351 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4352 check_cflags -faltivec
4353
4354 # check if our compiler supports Motorola AltiVec C API
4355 check_cc <<EOF || disable altivec
4356 $inc_altivec_h
4357 int main(void) {
4358 vector signed int v1 = (vector signed int) { 0 };
4359 vector signed int v2 = (vector signed int) { 1 };
4360 v1 = vec_add(v1, v2);
4361 return 0;
4362 }
4363 EOF
4364
4365 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4366 fi
4367
4368 if enabled vsx; then
4369 check_cflags -mvsx &&
4370 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4371 fi
4372
4373 if enabled power8; then
4374 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4375 fi
4376
4377 elif enabled x86; then
4378
4379 check_builtin rdtsc intrin.h "__rdtsc()"
4380 check_builtin mm_empty mmintrin.h "_mm_empty()"
4381
4382 enable local_aligned_8 local_aligned_16 local_aligned_32
4383
4384 # check whether EBP is available on x86
4385 # As 'i' is stored on the stack, this program will crash
4386 # if the base pointer is used to access it because the
4387 # base pointer is cleared in the inline assembly code.
4388 check_exec_crash <<EOF && enable ebp_available
4389 volatile int i=0;
4390 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4391 return i;
4392 EOF
4393
4394 # check whether EBX is available on x86
4395 check_inline_asm ebx_available '""::"b"(0)' &&
4396 check_inline_asm ebx_available