lavu: add LOCAL_ALIGNED_32
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Individual component options:
136 --disable-everything disable all components listed below
137 --disable-encoder=NAME disable encoder NAME
138 --enable-encoder=NAME enable encoder NAME
139 --disable-encoders disable all encoders
140 --disable-decoder=NAME disable decoder NAME
141 --enable-decoder=NAME enable decoder NAME
142 --disable-decoders disable all decoders
143 --disable-hwaccel=NAME disable hwaccel NAME
144 --enable-hwaccel=NAME enable hwaccel NAME
145 --disable-hwaccels disable all hwaccels
146 --disable-muxer=NAME disable muxer NAME
147 --enable-muxer=NAME enable muxer NAME
148 --disable-muxers disable all muxers
149 --disable-demuxer=NAME disable demuxer NAME
150 --enable-demuxer=NAME enable demuxer NAME
151 --disable-demuxers disable all demuxers
152 --enable-parser=NAME enable parser NAME
153 --disable-parser=NAME disable parser NAME
154 --disable-parsers disable all parsers
155 --enable-bsf=NAME enable bitstream filter NAME
156 --disable-bsf=NAME disable bitstream filter NAME
157 --disable-bsfs disable all bitstream filters
158 --enable-protocol=NAME enable protocol NAME
159 --disable-protocol=NAME disable protocol NAME
160 --disable-protocols disable all protocols
161 --enable-indev=NAME enable input device NAME
162 --disable-indev=NAME disable input device NAME
163 --disable-indevs disable input devices
164 --enable-outdev=NAME enable output device NAME
165 --disable-outdev=NAME disable output device NAME
166 --disable-outdevs disable output devices
167 --disable-devices disable all devices
168 --enable-filter=NAME enable filter NAME
169 --disable-filter=NAME disable filter NAME
170 --disable-filters disable all filters
171
172 External library support:
173
174 Using any of the following switches will allow Libav to link to the
175 corresponding external library. All the components depending on that library
176 will become enabled, if all their other dependencies are met and they are not
177 explicitly disabled. E.g. --enable-libwavpack will enable linking to
178 libwavpack and allow the libwavpack encoder to be built, unless it is
179 specifically disabled with --disable-encoder=libwavpack.
180
181 Note that only the system libraries are auto-detected. All the other external
182 libraries must be explicitly enabled.
183
184 Also note that the following help text describes the purpose of the libraries
185 themselves, not all their features will necessarily be usable by Libav.
186
187 --enable-avisynth video frameserver
188 --enable-bzlib bzip2 compression [autodetect]
189 --enable-frei0r video filtering plugins
190 --enable-gnutls crypto
191 --enable-libbs2b Bauer stereophonic-to-binaural DSP
192 --enable-libcdio audio CD input
193 --enable-libdc1394 IEEE 1394/Firewire camera input
194 --enable-libdcadec DCA audio decoding
195 --enable-libfaac AAC audio encoding
196 --enable-libfdk-aac AAC audio encoding/decoding
197 --enable-libfontconfig font configuration and management
198 --enable-libfreetype font rendering
199 --enable-libgsm GSM audio encoding/decoding
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libkvazaar HEVC video encoding
202 --enable-libmp3lame MP3 audio encoding
203 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
204 --enable-libopencore-amrwb AMR-WB audio decoding
205 --enable-libopencv computer vision
206 --enable-libopenh264 H.264 video encoding/decoding
207 --enable-libopenjpeg JPEG 2000 image encoding/decoding
208 --enable-libopus Opus audio encoding/decoding
209 --enable-libpulse Pulseaudio sound server
210 --enable-librtmp RTMP streaming
211 --enable-libschroedinger Dirac video encoding/decoding
212 --enable-libsnappy snappy compression
213 --enable-libspeex Speex audio encoding/decoding
214 --enable-libtheora Theora video encoding/decoding
215 --enable-libtwolame MP2 audio encoding
216 --enable-libvo-aacenc AAC audio encoding
217 --enable-libvo-amrwbenc AMR-WB audio encoding
218 --enable-libvorbis Vorbis audio encoding/decoding
219 --enable-libvpx VP* video encoding/decoding
220 --enable-libwavpack Wavpack audio encoding/decoding
221 --enable-libwebp WebP image encoding/decoding
222 --enable-libx264 H.264 video encoding
223 --enable-libx265 HEVC video encoding
224 --enable-libxavs Chinese AVS video encoding
225 --enable-libxcb X window system protocol communication
226 --enable-libxcb-shm X11 shm communication [auto]
227 --enable-libxcb-xfixes X11 mouse rendering [auto]
228 --enable-libxvid MPEG-4 ASP video encoding
229 --enable-openssl crypto
230 --enable-zlib compression [autodetect]
231
232 The following libraries provide various hardware acceleration features:
233 --enable-cuda Nvidia CUDA (dynamically linked)
234 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
235 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
236 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
237 --enable-libnpp Nvidia CUDA processing
238 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
239 --enable-nvenc Nvidia video encoding
240 --enable-omx OpenMAX IL
241 --enable-omx-rpi OpenMAX IL for Raspberry Pi
242 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
243 --enable-vda Apple Video Decode Acceleration [auto]
244 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
245
246 Toolchain options:
247 --arch=ARCH select architecture [$arch]
248 --cpu=CPU select the minimum required CPU (affects
249 instruction selection, may crash on older CPUs)
250 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
251 --enable-cross-compile assume a cross-compiler is used
252 --sysroot=PATH root of cross-build tree
253 --sysinclude=PATH location of cross-build system headers
254 --target-os=OS compiler targets OS [$target_os]
255 --target-exec=CMD command to run executables on target
256 --target-path=DIR path to view of build directory on target
257 --target-samples=DIR path to samples directory on target
258 --toolchain=NAME set tool defaults according to NAME
259 --nm=NM use nm tool
260 --ar=AR use archive tool AR [$ar_default]
261 --as=AS use assembler AS [$as_default]
262 --cc=CC use C compiler CC [$cc_default]
263 --objcc=OCC use ObjC compiler OCC [$cc_default]
264 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
265 --ld=LD use linker LD
266 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
267 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
268 --host-cc=HOSTCC use host C compiler HOSTCC
269 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
270 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
271 --host-ld=HOSTLD use host linker HOSTLD
272 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
273 --host-libs=HLIBS use libs HLIBS when linking for host
274 --host-os=OS compiler host OS [$target_os]
275 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
276 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
277 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
278 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
279 --extra-libs=ELIBS add ELIBS [$ELIBS]
280 --extra-version=STRING version string suffix []
281 --optflags=OPTFLAGS override optimization-related compiler flags
282 --build-suffix=SUFFIX library name suffix []
283 --enable-pic build position-independent code
284 --enable-thumb compile for Thumb instruction set
285 --enable-lto use link-time optimization
286 --env="ENV=override" override the environment variables
287
288 Advanced options (experts only):
289 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
290 --custom-allocator=NAME use a supported custom allocator
291 --disable-symver disable symbol versioning
292 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
293 --disable-safe-bitstream-reader
294 disable buffer boundary checking in bitreaders
295 (faster, but may crash)
296 --enable-memalign-hack emulate memalign, interferes with memory debuggers
297 --enable-sram allow use of on-chip SRAM
298
299 Optimization options (experts only):
300 --disable-asm disable all assembly optimizations
301 --disable-altivec disable AltiVec optimizations
302 --disable-vsx disable VSX optimizations
303 --disable-power8 disable POWER8 optimizations
304 --disable-amd3dnow disable 3DNow! optimizations
305 --disable-amd3dnowext disable 3DNow! extended optimizations
306 --disable-mmx disable MMX optimizations
307 --disable-mmxext disable MMXEXT optimizations
308 --disable-sse disable SSE optimizations
309 --disable-sse2 disable SSE2 optimizations
310 --disable-sse3 disable SSE3 optimizations
311 --disable-ssse3 disable SSSE3 optimizations
312 --disable-sse4 disable SSE4 optimizations
313 --disable-sse42 disable SSE4.2 optimizations
314 --disable-avx disable AVX optimizations
315 --disable-xop disable XOP optimizations
316 --disable-fma3 disable FMA3 optimizations
317 --disable-fma4 disable FMA4 optimizations
318 --disable-avx2 disable AVX2 optimizations
319 --disable-armv5te disable armv5te optimizations
320 --disable-armv6 disable armv6 optimizations
321 --disable-armv6t2 disable armv6t2 optimizations
322 --disable-vfp disable VFP optimizations
323 --disable-neon disable NEON optimizations
324 --disable-inline-asm disable use of inline assembly
325 --disable-yasm disable use of nasm/yasm assembly
326
327 Developer options (useful when working on Libav itself):
328 --disable-debug disable debugging symbols
329 --enable-debug=LEVEL set the debug level [$debuglevel]
330 --disable-optimizations disable compiler optimizations
331 --enable-extra-warnings enable more compiler warnings
332 --samples=PATH location of test samples for FATE, if not set use
333 \$LIBAV_SAMPLES at make invocation time.
334 --enable-neon-clobber-test check NEON registers for clobbering (should be
335 used only for debugging purposes)
336 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
337 should be used only for debugging purposes)
338 --enable-random randomly enable/disable components
339 --disable-random
340 --enable-random=LIST randomly enable/disable specific components or
341 --disable-random=LIST component groups. LIST is a comma-separated list
342 of NAME[:PROB] entries where NAME is a component
343 (group) and PROB the probability associated with
344 NAME (default 0.5).
345 --random-seed=VALUE seed value for --enable/disable-random
346 --disable-valgrind-backtrace do not print a backtrace under Valgrind
347 (only applies to --disable-optimizations builds)
348
349 NOTE: Object files are built at the place where configure is launched.
350 EOF
351 exit 0
352 }
353
354 quotes='""'
355
356 log(){
357 echo "$@" >> $logfile
358 }
359
360 log_file(){
361 log BEGIN $1
362 i=1
363 while read line; do
364 printf '%5s %s\n' "${i}" "${line}"
365 i=$(($i+1))
366 done < $1 >> $logfile
367 log END $1
368 }
369
370 echolog(){
371 log "$@"
372 echo "$@"
373 }
374
375 warn(){
376 log "WARNING: $*"
377 WARNINGS="${WARNINGS}WARNING: $*\n"
378 }
379
380 die(){
381 echolog "$@"
382 cat <<EOF
383
384 If you think configure made a mistake, make sure you are using the latest
385 version from Git. If the latest version fails, report the problem to the
386 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
387 EOF
388 if disabled logging; then
389 cat <<EOF
390 Rerun configure with logging enabled (do not use --disable-logging), and
391 include the log this produces with your report.
392 EOF
393 else
394 cat <<EOF
395 Include the log file "$logfile" produced by configure as this will help
396 solving the problem.
397 EOF
398 fi
399 exit 1
400 }
401
402 # Avoid locale weirdness, besides we really just want to translate ASCII.
403 toupper(){
404 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
405 }
406
407 tolower(){
408 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
409 }
410
411 c_escape(){
412 echo "$*" | sed 's/["\\]/\\\0/g'
413 }
414
415 sh_quote(){
416 v=$(echo "$1" | sed "s/'/'\\\\''/g")
417 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
418 echo "$v"
419 }
420
421 cleanws(){
422 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
423 }
424
425 filter(){
426 pat=$1
427 shift
428 for v; do
429 eval "case $v in $pat) echo $v ;; esac"
430 done
431 }
432
433 filter_out(){
434 pat=$1
435 shift
436 for v; do
437 eval "case $v in $pat) ;; *) echo $v ;; esac"
438 done
439 }
440
441 map(){
442 m=$1
443 shift
444 for v; do eval $m; done
445 }
446
447 add_suffix(){
448 suffix=$1
449 shift
450 for v; do echo ${v}${suffix}; done
451 }
452
453 set_all(){
454 value=$1
455 shift
456 for var in $*; do
457 eval $var=$value
458 done
459 }
460
461 set_weak(){
462 value=$1
463 shift
464 for var; do
465 eval : \${$var:=$value}
466 done
467 }
468
469 sanitize_var_name(){
470 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
471 }
472
473 set_safe(){
474 var=$1
475 shift
476 eval $(sanitize_var_name "$var")='$*'
477 }
478
479 get_safe(){
480 eval echo \$$(sanitize_var_name "$1")
481 }
482
483 pushvar(){
484 for pvar in $*; do
485 eval level=\${${pvar}_level:=0}
486 eval ${pvar}_${level}="\$$pvar"
487 eval ${pvar}_level=$(($level+1))
488 done
489 }
490
491 popvar(){
492 for pvar in $*; do
493 eval level=\${${pvar}_level:-0}
494 test $level = 0 && continue
495 eval level=$(($level-1))
496 eval $pvar="\${${pvar}_${level}}"
497 eval ${pvar}_level=$level
498 eval unset ${pvar}_${level}
499 done
500 }
501
502 enable(){
503 set_all yes $*
504 }
505
506 disable(){
507 set_all no $*
508 }
509
510 enable_weak(){
511 set_weak yes $*
512 }
513
514 disable_weak(){
515 set_weak no $*
516 }
517
518 enable_safe(){
519 for var; do
520 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
521 done
522 }
523
524 disable_safe(){
525 for var; do
526 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
527 done
528 }
529
530 do_enable_deep(){
531 for var; do
532 enabled $var && continue
533 eval sel="\$${var}_select"
534 eval sgs="\$${var}_suggest"
535 pushvar var sgs
536 enable_deep $sel
537 popvar sgs
538 enable_deep_weak $sgs
539 popvar var
540 done
541 }
542
543 enable_deep(){
544 do_enable_deep $*
545 enable $*
546 }
547
548 enable_deep_weak(){
549 for var; do
550 disabled $var && continue
551 pushvar var
552 do_enable_deep $var
553 popvar var
554 enable_weak $var
555 done
556 }
557
558 enabled(){
559 test "${1#!}" = "$1" && op== || op=!=
560 eval test "x\$${1#!}" $op "xyes"
561 }
562
563 disabled(){
564 test "${1#!}" = "$1" && op== || op=!=
565 eval test "x\$${1#!}" $op "xno"
566 }
567
568 enabled_all(){
569 for opt; do
570 enabled $opt || return 1
571 done
572 }
573
574 disabled_all(){
575 for opt; do
576 disabled $opt || return 1
577 done
578 }
579
580 enabled_any(){
581 for opt; do
582 enabled $opt && return 0
583 done
584 }
585
586 disabled_any(){
587 for opt; do
588 disabled $opt && return 0
589 done
590 return 1
591 }
592
593 set_default(){
594 for opt; do
595 eval : \${$opt:=\$${opt}_default}
596 done
597 }
598
599 is_in(){
600 value=$1
601 shift
602 for var in $*; do
603 [ $var = $value ] && return 0
604 done
605 return 1
606 }
607
608 do_check_deps(){
609 for cfg; do
610 cfg="${cfg#!}"
611 enabled ${cfg}_checking && die "Circular dependency for $cfg."
612 disabled ${cfg}_checking && continue
613 enable ${cfg}_checking
614 append allopts $cfg
615
616 eval dep_all="\$${cfg}_deps"
617 eval dep_any="\$${cfg}_deps_any"
618 eval dep_sel="\$${cfg}_select"
619 eval dep_sgs="\$${cfg}_suggest"
620 eval dep_ifa="\$${cfg}_if"
621 eval dep_ifn="\$${cfg}_if_any"
622
623 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
624 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
625 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626
627 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
628 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
629 enabled_all $dep_all || disable $cfg
630 enabled_any $dep_any || disable $cfg
631 disabled_any $dep_sel && disable $cfg
632
633 if enabled $cfg; then
634 enable_deep $dep_sel
635 enable_deep_weak $dep_sgs
636 fi
637
638 disable ${cfg}_checking
639 done
640 }
641
642 check_deps(){
643 unset allopts
644
645 do_check_deps "$@"
646
647 for cfg in $allopts; do
648 enabled $cfg || continue
649 eval dep_extralibs="\$${cfg}_extralibs"
650 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
651 done
652 }
653
654 print_config(){
655 pfx=$1
656 files=$2
657 shift 2
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
660 {
661 c = \"$pfx\" toupper(\$1);
662 v = \$2;
663 sub(/yes/, 1, v);
664 sub(/no/, 0, v);
665 for (f in files) {
666 file = files[f];
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
674 }
675 }
676 }"
677 }
678
679 print_enabled(){
680 suf=$1
681 shift
682 for v; do
683 enabled $v && printf "%s\n" ${v%$suf}
684 done
685 }
686
687 append(){
688 var=$1
689 shift
690 eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694 var=$1
695 shift
696 eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700 var=$1
701 uniq_list=""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
704 done
705 eval "$var=\"${uniq_list}\""
706 }
707
708 add_cppflags(){
709 append CPPFLAGS "$@"
710 }
711
712 add_cflags(){
713 append CFLAGS $($cflags_filter "$@")
714 }
715
716 add_asflags(){
717 append ASFLAGS $($asflags_filter "$@")
718 }
719
720 add_objcflags(){
721 append OBJCFLAGS $($objcflags_filter "$@")
722 }
723
724 add_ldflags(){
725 append LDFLAGS $($ldflags_filter "$@")
726 }
727
728 add_ldexeflags(){
729 append LDEXEFLAGS $($ldflags_filter "$@")
730 }
731
732 add_stripflags(){
733 append STRIPFLAGS "$@"
734 }
735
736 add_extralibs(){
737 prepend extralibs $($ldflags_filter "$@")
738 }
739
740 add_host_cppflags(){
741 append host_cppflags "$@"
742 }
743
744 add_host_cflags(){
745 append host_cflags $($host_cflags_filter "$@")
746 }
747
748 add_host_ldflags(){
749 append host_ldflags $($host_ldflags_filter "$@")
750 }
751
752 add_compat(){
753 append compat_objs $1
754 shift
755 map 'add_cppflags -D$v' "$@"
756 }
757
758 check_cmd(){
759 log "$@"
760 "$@" >> $logfile 2>&1
761 }
762
763 cc_o(){
764 eval printf '%s\\n' $CC_O
765 }
766
767 cc_e(){
768 eval printf '%s\\n' $CC_E
769 }
770
771 check_cc(){
772 log check_cc "$@"
773 cat > $TMPC
774 log_file $TMPC
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
776 }
777
778 check_objcc(){
779 log check_objcc "$@"
780 cat > $TMPC
781 log_file $TMPC
782 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
783 }
784
785 check_cpp(){
786 log check_cpp "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
790 }
791
792 as_o(){
793 eval printf '%s\\n' $AS_O
794 }
795
796 check_as(){
797 log check_as "$@"
798 cat > $TMPS
799 log_file $TMPS
800 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
801 }
802
803 check_inline_asm(){
804 log check_inline_asm "$@"
805 name="$1"
806 code="$2"
807 shift 2
808 disable $name
809 check_cc "$@" <<EOF && enable $name
810 void foo(void){ __asm__ volatile($code); }
811 EOF
812 }
813
814 check_insn(){
815 log check_insn "$@"
816 check_inline_asm ${1}_inline "\"$2\""
817 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
818 }
819
820 check_yasm(){
821 log check_yasm "$@"
822 echo "$1" > $TMPS
823 log_file $TMPS
824 shift 1
825 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
826 }
827
828 ld_o(){
829 eval printf '%s\\n' $LD_O
830 }
831
832 check_ld(){
833 log check_ld "$@"
834 flags=$(filter_out '-l*' "$@")
835 libs=$(filter '-l*' "$@")
836 check_cc $($cflags_filter $flags) || return
837 flags=$($ldflags_filter $flags)
838 libs=$($ldflags_filter $libs)
839 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
840 }
841
842 print_include(){
843 hdr=$1
844 test "${hdr%.h}" = "${hdr}" &&
845 echo "#include $hdr" ||
846 echo "#include <$hdr>"
847 }
848
849 check_code(){
850 log check_code "$@"
851 check=$1
852 headers=$2
853 code=$3
854 shift 3
855 {
856 for hdr in $headers; do
857 print_include $hdr
858 done
859 echo "int main(void) { $code; return 0; }"
860 } | check_$check "$@"
861 }
862
863 check_cppflags(){
864 log check_cppflags "$@"
865 check_cc "$@" <<EOF && append CPPFLAGS "$@"
866 int x;
867 EOF
868 }
869
870 test_cflags(){
871 log test_cflags "$@"
872 set -- $($cflags_filter "$@")
873 check_cc "$@" <<EOF
874 int x;
875 EOF
876 }
877
878 check_cflags(){
879 log check_cflags "$@"
880 test_cflags "$@" && add_cflags "$@"
881 }
882
883 test_objcflags(){
884 log test_cflags "$@"
885 set -- $($cflags_filter "$@")
886 check_objcc "$@" <<EOF
887 int x;
888 EOF
889 }
890
891 check_objcflags(){
892 log check_cflags "$@"
893 test_objcflags "$@" && add_objcflags "$@"
894 }
895
896 test_ldflags(){
897 log test_ldflags "$@"
898 check_ld "$@" <<EOF
899 int main(void){ return 0; }
900 EOF
901 }
902
903 check_ldflags(){
904 log check_ldflags "$@"
905 test_ldflags "$@" && add_ldflags "$@"
906 }
907
908 test_stripflags(){
909 log test_stripflags "$@"
910 # call check_cc to get a fresh TMPO
911 check_cc <<EOF
912 int main(void) { return 0; }
913 EOF
914 check_cmd $strip $STRIPFLAGS "$@" $TMPO
915 }
916
917 check_stripflags(){
918 log check_stripflags "$@"
919 test_stripflags "$@" && add_stripflags "$@"
920 }
921
922 check_header(){
923 log check_header "$@"
924 header=$1
925 shift
926 disable_safe $header
927 check_cpp "$@" <<EOF && enable_safe $header
928 #include <$header>
929 int x;
930 EOF
931 }
932
933 check_func(){
934 log check_func "$@"
935 func=$1
936 shift
937 disable $func
938 check_ld "$@" <<EOF && enable $func
939 extern int $func();
940 int main(void){ $func(); }
941 EOF
942 }
943
944 check_mathfunc(){
945 log check_mathfunc "$@"
946 func=$1
947 narg=$2
948 shift 2
949 test $narg = 2 && args="f, g" || args="f"
950 disable $func
951 check_ld "$@" <<EOF && enable $func
952 #include <math.h>
953 float foo(float f, float g) { return $func($args); }
954 int main(void){ return 0; }
955 EOF
956 }
957
958 check_func_headers(){
959 log check_func_headers "$@"
960 headers=$1
961 funcs=$2
962 shift 2
963 {
964 for hdr in $headers; do
965 print_include $hdr
966 done
967 for func in $funcs; do
968 echo "long check_$func(void) { return (long) $func; }"
969 done
970 echo "int main(void) { return 0; }"
971 } | check_ld "$@" && enable $funcs && enable_safe $headers
972 }
973
974 check_cpp_condition(){
975 log check_cpp_condition "$@"
976 header=$1
977 condition=$2
978 shift 2
979 check_cpp "$@" <<EOF
980 #include <$header>
981 #if !($condition)
982 #error "unsatisfied condition: $condition"
983 #endif
984 EOF
985 }
986
987 check_lib(){
988 log check_lib "$@"
989 header="$1"
990 func="$2"
991 shift 2
992 check_header $header && check_func $func "$@" && add_extralibs "$@"
993 }
994
995 check_lib2(){
996 log check_lib2 "$@"
997 headers="$1"
998 funcs="$2"
999 shift 2
1000 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1001 }
1002
1003 check_pkg_config(){
1004 log check_pkg_config "$@"
1005 pkg="$1"
1006 headers="$2"
1007 funcs="$3"
1008 shift 3
1009 check_cmd $pkg_config --exists --print-errors $pkg || return
1010 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1011 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1012 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1013 set_safe "${pkg}_cflags" $pkg_cflags &&
1014 set_safe "${pkg}_libs" $pkg_libs
1015 }
1016
1017 check_exec(){
1018 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1019 }
1020
1021 check_exec_crash(){
1022 code=$(cat)
1023
1024 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1025 # are safe but may not be available everywhere. Thus we use
1026 # raise(SIGTERM) instead. The check is run in a subshell so we
1027 # can redirect the "Terminated" message from the shell. SIGBUS
1028 # is not defined by standard C so it is used conditionally.
1029
1030 (check_exec "$@") >> $logfile 2>&1 <<EOF
1031 #include <signal.h>
1032 static void sighandler(int sig){
1033 raise(SIGTERM);
1034 }
1035 int foo(void){
1036 $code
1037 }
1038 int (*func_ptr)(void) = foo;
1039 int main(void){
1040 signal(SIGILL, sighandler);
1041 signal(SIGFPE, sighandler);
1042 signal(SIGSEGV, sighandler);
1043 #ifdef SIGBUS
1044 signal(SIGBUS, sighandler);
1045 #endif
1046 return func_ptr();
1047 }
1048 EOF
1049 }
1050
1051 check_type(){
1052 log check_type "$@"
1053 headers=$1
1054 type=$2
1055 shift 2
1056 disable_safe "$type"
1057 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1058 }
1059
1060 check_struct(){
1061 log check_struct "$@"
1062 headers=$1
1063 struct=$2
1064 member=$3
1065 shift 3
1066 disable_safe "${struct}_${member}"
1067 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1068 enable_safe "${struct}_${member}"
1069 }
1070
1071 check_builtin(){
1072 log check_builtin "$@"
1073 name=$1
1074 headers=$2
1075 builtin=$3
1076 shift 3
1077 disable "$name"
1078 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1079 }
1080
1081 check_compile_assert(){
1082 log check_compile_assert "$@"
1083 name=$1
1084 headers=$2
1085 condition=$3
1086 shift 3
1087 disable "$name"
1088 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1089 }
1090
1091 require(){
1092 name="$1"
1093 header="$2"
1094 func="$3"
1095 shift 3
1096 check_lib $header $func "$@" || die "ERROR: $name not found"
1097 }
1098
1099 require2(){
1100 name="$1"
1101 headers="$2"
1102 func="$3"
1103 shift 3
1104 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1105 }
1106
1107 require_pkg_config(){
1108 pkg="$1"
1109 check_pkg_config "$@" || die "ERROR: $pkg not found"
1110 add_cflags $(get_safe "${pkg}_cflags")
1111 add_extralibs $(get_safe "${pkg}_libs")
1112 }
1113
1114 hostcc_e(){
1115 eval printf '%s\\n' $HOSTCC_E
1116 }
1117
1118 hostcc_o(){
1119 eval printf '%s\\n' $HOSTCC_O
1120 }
1121
1122 check_host_cc(){
1123 log check_host_cc "$@"
1124 cat > $TMPC
1125 log_file $TMPC
1126 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1127 }
1128
1129 check_host_cpp(){
1130 log check_host_cpp "$@"
1131 cat > $TMPC
1132 log_file $TMPC
1133 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1134 }
1135
1136 check_host_cppflags(){
1137 log check_host_cppflags "$@"
1138 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1139 int x;
1140 EOF
1141 }
1142
1143 check_host_cflags(){
1144 log check_host_cflags "$@"
1145 set -- $($host_cflags_filter "$@")
1146 check_host_cc "$@" <<EOF && append host_cflags "$@"
1147 int x;
1148 EOF
1149 }
1150
1151 check_host_cpp_condition(){
1152 log check_host_cpp_condition "$@"
1153 header=$1
1154 condition=$2
1155 shift 2
1156 check_host_cpp "$@" <<EOF
1157 #include <$header>
1158 #if !($condition)
1159 #error "unsatisfied condition: $condition"
1160 #endif
1161 EOF
1162 }
1163
1164 apply(){
1165 file=$1
1166 shift
1167 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1168 }
1169
1170 cp_if_changed(){
1171 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1172 mkdir -p "$(dirname $2)"
1173 $cp_f "$1" "$2"
1174 }
1175
1176 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1177 # system-dependent things.
1178
1179 AVCODEC_COMPONENTS="
1180 bsfs
1181 decoders
1182 encoders
1183 hwaccels
1184 parsers
1185 "
1186
1187 AVDEVICE_COMPONENTS="
1188 indevs
1189 outdevs
1190 "
1191 AVFILTER_COMPONENTS="
1192 filters
1193 "
1194 AVFORMAT_COMPONENTS="
1195 demuxers
1196 muxers
1197 protocols
1198 "
1199
1200 AVRESAMPLE_COMPONENTS=""
1201 AVUTIL_COMPONENTS=""
1202
1203 COMPONENT_LIST="
1204 $AVCODEC_COMPONENTS
1205 $AVDEVICE_COMPONENTS
1206 $AVFILTER_COMPONENTS
1207 $AVFORMAT_COMPONENTS
1208 $AVRESAMPLE_COMPONENTS
1209 $AVUTIL_COMPONENTS
1210 "
1211
1212 EXAMPLE_LIST="
1213 avcodec_example
1214 filter_audio_example
1215 metadata_example
1216 output_example
1217 qsvdec_example
1218 transcode_aac_example
1219 "
1220
1221 HWACCEL_LIBRARY_NONFREE_LIST="
1222 cuda
1223 libnpp
1224 "
1225 HWACCEL_LIBRARY_LIST="
1226 $HWACCEL_LIBRARY_NONFREE_LIST
1227 d3d11va
1228 dxva2
1229 libmfx
1230 mmal
1231 nvenc
1232 omx
1233 vaapi
1234 vda
1235 vdpau
1236 "
1237
1238 EXTERNAL_LIBRARY_GPL_LIST="
1239 libcdio
1240 libx264
1241 libx265
1242 libxavs
1243 libxvid
1244 "
1245
1246 EXTERNAL_LIBRARY_NONFREE_LIST="
1247 libfaac
1248 libfdk_aac
1249 openssl
1250 "
1251
1252 EXTERNAL_LIBRARY_VERSION3_LIST="
1253 libopencore_amrnb
1254 libopencore_amrwb
1255 libvo_aacenc
1256 libvo_amrwbenc
1257 "
1258
1259 EXTERNAL_LIBRARY_LIST="
1260 $EXTERNAL_LIBRARY_GPL_LIST
1261 $EXTERNAL_LIBRARY_NONFREE_LIST
1262 $EXTERNAL_LIBRARY_VERSION3_LIST
1263 avisynth
1264 bzlib
1265 frei0r
1266 gnutls
1267 libbs2b
1268 libdc1394
1269 libdcadec
1270 libfontconfig
1271 libfreetype
1272 libgsm
1273 libilbc
1274 libkvazaar
1275 libmp3lame
1276 libopencv
1277 libopenh264
1278 libopenjpeg
1279 libopus
1280 libpulse
1281 librtmp
1282 libschroedinger
1283 libsnappy
1284 libspeex
1285 libtheora
1286 libtwolame
1287 libvorbis
1288 libvpx
1289 libwavpack
1290 libwebp
1291 libxcb
1292 libxcb_shm
1293 libxcb_xfixes
1294 zlib
1295 "
1296
1297 FEATURE_LIST="
1298 gray
1299 hardcoded_tables
1300 omx_rpi
1301 runtime_cpudetect
1302 safe_bitstream_reader
1303 shared
1304 small
1305 sram
1306 static
1307 swscale_alpha
1308 "
1309
1310 LIBRARY_LIST="
1311 avcodec
1312 avdevice
1313 avfilter
1314 avformat
1315 avresample
1316 avutil
1317 swscale
1318 "
1319
1320 LICENSE_LIST="
1321 gpl
1322 nonfree
1323 version3
1324 "
1325
1326 PROGRAM_LIST="
1327 avconv
1328 avplay
1329 avprobe
1330 "
1331
1332 SUBSYSTEM_LIST="
1333 dct
1334 doc
1335 error_resilience
1336 faan
1337 fft
1338 lsp
1339 lzo
1340 mdct
1341 network
1342 rdft
1343 "
1344
1345 CONFIG_LIST="
1346 $COMPONENT_LIST
1347 $EXAMPLE_LIST
1348 $EXTERNAL_LIBRARY_LIST
1349 $HWACCEL_LIBRARY_LIST
1350 $FEATURE_LIST
1351 $LICENSE_LIST
1352 $LIBRARY_LIST
1353 $PROGRAM_LIST
1354 $SUBSYSTEM_LIST
1355 memalign_hack
1356 neon_clobber_test
1357 pic
1358 pod2man
1359 texi2html
1360 thumb
1361 valgrind_backtrace
1362 xmm_clobber_test
1363 "
1364
1365 THREADS_LIST="
1366 pthreads
1367 w32threads
1368 "
1369
1370 ATOMICS_LIST="
1371 atomics_gcc
1372 atomics_suncc
1373 atomics_win32
1374 "
1375
1376 ARCH_LIST="
1377 aarch64
1378 alpha
1379 arm
1380 avr32
1381 avr32_ap
1382 avr32_uc
1383 bfin
1384 ia64
1385 m68k
1386 mips
1387 mips64
1388 parisc
1389 ppc
1390 ppc64
1391 s390
1392 sh4
1393 sparc
1394 sparc64
1395 tilegx
1396 tilepro
1397 tomi
1398 x86
1399 x86_32
1400 x86_64
1401 "
1402
1403 ARCH_EXT_LIST_ARM="
1404 armv5te
1405 armv6
1406 armv6t2
1407 armv8
1408 neon
1409 vfp
1410 vfpv3
1411 "
1412
1413 ARCH_EXT_LIST_X86_SIMD="
1414 amd3dnow
1415 amd3dnowext
1416 avx
1417 avx2
1418 fma3
1419 fma4
1420 mmx
1421 mmxext
1422 sse
1423 sse2
1424 sse3
1425 sse4
1426 sse42
1427 ssse3
1428 xop
1429 "
1430
1431 ARCH_EXT_LIST_PPC="
1432 altivec
1433 dcbzl
1434 ldbrx
1435 power8
1436 ppc4xx
1437 vsx
1438 "
1439
1440 ARCH_EXT_LIST_X86="
1441 $ARCH_EXT_LIST_X86_SIMD
1442 cpunop
1443 i686
1444 "
1445
1446 ARCH_EXT_LIST_MIPS="
1447 loongson
1448 mips32r1
1449 mips64r1
1450 mips32r2
1451 mips64r2
1452 mips32r6
1453 mips64r6
1454 "
1455
1456 ARCH_EXT_LIST="
1457 $ARCH_EXT_LIST_ARM
1458 $ARCH_EXT_LIST_MIPS
1459 $ARCH_EXT_LIST_PPC
1460 $ARCH_EXT_LIST_X86
1461 vis
1462 "
1463
1464 ARCH_FEATURES="
1465 aligned_stack
1466 fast_64bit
1467 fast_clz
1468 fast_cmov
1469 local_aligned_8
1470 local_aligned_16
1471 local_aligned_32
1472 simd_align_16
1473 "
1474
1475 BUILTIN_LIST="
1476 atomic_cas_ptr
1477 machine_rw_barrier
1478 MemoryBarrier
1479 mm_empty
1480 rdtsc
1481 sem_timedwait
1482 sync_val_compare_and_swap
1483 "
1484 HAVE_LIST_CMDLINE="
1485 inline_asm
1486 symver
1487 yasm
1488 "
1489
1490 HAVE_LIST_PUB="
1491 bigendian
1492 fast_unaligned
1493 "
1494
1495 HEADERS_LIST="
1496 AVFoundation_AVFoundation_h
1497 alsa_asoundlib_h
1498 altivec_h
1499 arpa_inet_h
1500 cdio_paranoia_h
1501 cdio_paranoia_paranoia_h
1502 dispatch_dispatch_h
1503 dev_bktr_ioctl_bt848_h
1504 dev_bktr_ioctl_meteor_h
1505 dev_ic_bt8xx_h
1506 dev_video_bktr_ioctl_bt848_h
1507 dev_video_meteor_ioctl_meteor_h
1508 direct_h
1509 dlfcn_h
1510 d3d11_h
1511 dxva_h
1512 gsm_h
1513 io_h
1514 mach_mach_time_h
1515 machine_ioctl_bt848_h
1516 machine_ioctl_meteor_h
1517 malloc_h
1518 poll_h
1519 sndio_h
1520 soundcard_h
1521 sys_mman_h
1522 sys_param_h
1523 sys_resource_h
1524 sys_select_h
1525 sys_soundcard_h
1526 sys_time_h
1527 sys_un_h
1528 sys_videoio_h
1529 unistd_h
1530 valgrind_valgrind_h
1531 windows_h
1532 winsock2_h
1533 "
1534
1535 INTRINSICS_LIST="
1536 intrinsics_neon
1537 "
1538
1539 MATH_FUNCS="
1540 atanf
1541 atan2f
1542 cbrtf
1543 cosf
1544 exp2
1545 exp2f
1546 expf
1547 isinf
1548 isnan
1549 ldexpf
1550 llrint
1551 llrintf
1552 log2
1553 log2f
1554 log10f
1555 lrint
1556 lrintf
1557 powf
1558 rint
1559 round
1560 roundf
1561 sinf
1562 trunc
1563 truncf
1564 "
1565
1566 SYSTEM_FUNCS="
1567 aligned_malloc
1568 clock_gettime
1569 closesocket
1570 CommandLineToArgvW
1571 CoTaskMemFree
1572 CryptGenRandom
1573 dlopen
1574 fcntl
1575 flt_lim
1576 fork
1577 getaddrinfo
1578 gethrtime
1579 getopt
1580 GetProcessAffinityMask
1581 GetProcessMemoryInfo
1582 GetProcessTimes
1583 getrusage
1584 GetSystemTimeAsFileTime
1585 gettimeofday
1586 gmtime_r
1587 inet_aton
1588 isatty
1589 jack_port_get_latency_range
1590 LoadLibrary
1591 localtime_r
1592 mach_absolute_time
1593 MapViewOfFile
1594 memalign
1595 mkstemp
1596 mmap
1597 mprotect
1598 nanosleep
1599 posix_memalign
1600 sched_getaffinity
1601 SetConsoleTextAttribute
1602 setmode
1603 setrlimit
1604 Sleep
1605 strerror_r
1606 sysconf
1607 sysctl
1608 usleep
1609 VirtualAlloc
1610 "
1611
1612 TOOLCHAIN_FEATURES="
1613 as_dn_directive
1614 as_fpu_directive
1615 as_func
1616 as_object_arch
1617 asm_mod_q
1618 attribute_may_alias
1619 attribute_packed
1620 ebp_available
1621 ebx_available
1622 gnu_as
1623 ibm_asm
1624 inline_asm_labels
1625 pragma_deprecated
1626 symver_asm_label
1627 symver_gnu_asm
1628 vfp_args
1629 xform_asm
1630 xmm_clobbers
1631 "
1632
1633 TYPES_LIST="
1634 CONDITION_VARIABLE_Ptr
1635 socklen_t
1636 struct_addrinfo
1637 struct_group_source_req
1638 struct_ip_mreq_source
1639 struct_ipv6_mreq
1640 struct_pollfd
1641 struct_rusage_ru_maxrss
1642 struct_sockaddr_in6
1643 struct_sockaddr_sa_len
1644 struct_sockaddr_storage
1645 struct_v4l2_frmivalenum_discrete
1646 "
1647
1648 HAVE_LIST="
1649 $ARCH_EXT_LIST
1650 $(add_suffix _external $ARCH_EXT_LIST)
1651 $(add_suffix _inline $ARCH_EXT_LIST)
1652 $ARCH_FEATURES
1653 $ATOMICS_LIST
1654 $BUILTIN_LIST
1655 $HAVE_LIST_CMDLINE
1656 $HAVE_LIST_PUB
1657 $HEADERS_LIST
1658 $INTRINSICS_LIST
1659 $MATH_FUNCS
1660 $SYSTEM_FUNCS
1661 $THREADS_LIST
1662 $TOOLCHAIN_FEATURES
1663 $TYPES_LIST
1664 atomics_native
1665 dos_paths
1666 dxva2_lib
1667 libc_msvcrt
1668 libdc1394_1
1669 libdc1394_2
1670 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1671 sdl
1672 section_data_rel_ro
1673 threads
1674 vaapi_drm
1675 vaapi_x11
1676 vdpau_x11
1677 xlib
1678 "
1679
1680 # options emitted with CONFIG_ prefix but not available on the command line
1681 CONFIG_EXTRA="
1682 aandcttables
1683 ac3dsp
1684 audio_frame_queue
1685 audiodsp
1686 blockdsp
1687 bswapdsp
1688 cabac
1689 dirac_parse
1690 dvprofile
1691 faandct
1692 faanidct
1693 fdctdsp
1694 flacdsp
1695 fmtconvert
1696 g722dsp
1697 gcrypt
1698 gmp
1699 golomb
1700 gplv3
1701 h263dsp
1702 h264chroma
1703 h264dsp
1704 h264parse
1705 h264pred
1706 h264qpel
1707 hpeldsp
1708 huffman
1709 huffyuvdsp
1710 huffyuvencdsp
1711 idctdsp
1712 iirfilter
1713 imdct15
1714 intrax8
1715 iso_media
1716 ividsp
1717 jpegtables
1718 libx262
1719 lgplv3
1720 lpc
1721 lzf
1722 me_cmp
1723 mpeg_er
1724 mpegaudio
1725 mpegaudiodsp
1726 mpegvideo
1727 mpegvideoenc
1728 mss34dsp
1729 pixblockdsp
1730 qpeldsp
1731 qsv
1732 qsvdec
1733 qsvenc
1734 rangecoder
1735 riffdec
1736 riffenc
1737 rtpdec
1738 rtpenc_chain
1739 rv34dsp
1740 sinewin
1741 snappy
1742 srtp
1743 startcode
1744 texturedsp
1745 texturedspenc
1746 tpeldsp
1747 vaapi_encode
1748 vc1dsp
1749 videodsp
1750 vp3dsp
1751 vp56dsp
1752 vp8dsp
1753 wma_freqs
1754 wmv2dsp
1755 "
1756
1757 CMDLINE_SELECT="
1758 $ARCH_EXT_LIST
1759 $CONFIG_LIST
1760 $HAVE_LIST_CMDLINE
1761 $THREADS_LIST
1762 asm
1763 cross_compile
1764 debug
1765 extra_warnings
1766 logging
1767 lto
1768 optimizations
1769 rpath
1770 "
1771
1772 PATHS_LIST="
1773 bindir
1774 datadir
1775 docdir
1776 incdir
1777 libdir
1778 mandir
1779 prefix
1780 shlibdir
1781 "
1782
1783 CMDLINE_SET="
1784 $PATHS_LIST
1785 ar
1786 arch
1787 as
1788 build_suffix
1789 cc
1790 objcc
1791 cpu
1792 cross_prefix
1793 custom_allocator
1794 dep_cc
1795 env
1796 extra_version
1797 host_cc
1798 host_cflags
1799 host_ld
1800 host_ldflags
1801 host_libs
1802 host_os
1803 ld
1804 logfile
1805 malloc_prefix
1806 nm
1807 optflags
1808 pkg_config
1809 pkg_config_flags
1810 random_seed
1811 samples
1812 sysinclude
1813 sysroot
1814 target_exec
1815 target_os
1816 target_path
1817 target_samples
1818 toolchain
1819 "
1820
1821 CMDLINE_APPEND="
1822 extra_cflags
1823 extra_objcflags
1824 host_cppflags
1825 "
1826
1827 # code dependency declarations
1828
1829 # architecture extensions
1830
1831 armv5te_deps="arm"
1832 armv6_deps="arm"
1833 armv6t2_deps="arm"
1834 armv8_deps="aarch64"
1835 neon_deps_any="aarch64 arm"
1836 intrinsics_neon_deps="neon"
1837 vfp_deps_any="aarch64 arm"
1838 vfpv3_deps="vfp"
1839
1840 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1841
1842 altivec_deps="ppc"
1843 ppc4xx_deps="ppc"
1844 vsx_deps="altivec"
1845 power8_deps="vsx"
1846
1847 cpunop_deps="i686"
1848 x86_64_select="i686"
1849 x86_64_suggest="fast_cmov"
1850
1851 amd3dnow_deps="mmx"
1852 amd3dnowext_deps="amd3dnow"
1853 i686_deps="x86"
1854 mmx_deps="x86"
1855 mmxext_deps="mmx"
1856 sse_deps="mmxext"
1857 sse2_deps="sse"
1858 sse3_deps="sse2"
1859 ssse3_deps="sse3"
1860 sse4_deps="ssse3"
1861 sse42_deps="sse4"
1862 avx_deps="sse42"
1863 xop_deps="avx"
1864 fma3_deps="avx"
1865 fma4_deps="avx"
1866 avx2_deps="avx"
1867
1868 mmx_external_deps="yasm"
1869 mmx_inline_deps="inline_asm"
1870 mmx_suggest="mmx_external mmx_inline"
1871
1872 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1873 eval dep=\$${ext}_deps
1874 eval ${ext}_external_deps='"${dep}_external"'
1875 eval ${ext}_inline_deps='"${dep}_inline"'
1876 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1877 done
1878
1879 aligned_stack_if_any="aarch64 ppc x86"
1880 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1881 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1882 fast_unaligned_if_any="aarch64 ppc x86"
1883 simd_align_16_if_any="altivec neon sse"
1884
1885 # system capabilities
1886 symver_if_any="symver_asm_label symver_gnu_asm"
1887 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1888
1889 # threading support
1890 atomics_gcc_if="sync_val_compare_and_swap"
1891 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1892 atomics_win32_if="MemoryBarrier"
1893 atomics_native_if_any="$ATOMICS_LIST"
1894 w32threads_deps="atomics_native"
1895 threads_if_any="$THREADS_LIST"
1896
1897 # subsystems
1898 dct_select="rdft"
1899 dirac_parse_select="golomb"
1900 error_resilience_select="me_cmp"
1901 faandct_deps="faan fdctdsp"
1902 faanidct_deps="faan idctdsp"
1903 h264dsp_select="startcode"
1904 intrax8_select="blockdsp idctdsp"
1905 mdct_select="fft"
1906 rdft_select="fft"
1907 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1908 mpeg_er_select="error_resilience"
1909 mpegaudio_select="mpegaudiodsp"
1910 mpegaudiodsp_select="dct"
1911 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1912 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1913 vc1dsp_select="h264chroma qpeldsp startcode"
1914
1915 # decoders / encoders
1916 aac_decoder_select="imdct15 mdct sinewin"
1917 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1918 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1919 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1920 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1921 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1922 adpcm_g722_decoder_select="g722dsp"
1923 adpcm_g722_encoder_select="g722dsp"
1924 aic_decoder_select="golomb idctdsp"
1925 alac_encoder_select="lpc"
1926 als_decoder_select="bswapdsp"
1927 amrnb_decoder_select="lsp"
1928 amrwb_decoder_select="lsp"
1929 amv_decoder_select="sp5x_decoder"
1930 ape_decoder_select="bswapdsp"
1931 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1932 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1933 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1934 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1935 atrac1_decoder_select="mdct sinewin"
1936 atrac3_decoder_select="mdct"
1937 atrac3p_decoder_select="mdct sinewin"
1938 bink_decoder_select="blockdsp hpeldsp"
1939 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1940 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1941 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1942 cllc_decoder_select="bswapdsp"
1943 comfortnoise_encoder_select="lpc"
1944 cook_decoder_select="audiodsp mdct sinewin"
1945 cscd_decoder_select="lzo"
1946 cscd_decoder_suggest="zlib"
1947 dca_decoder_select="fmtconvert mdct"
1948 dds_decoder_select="texturedsp"
1949 dnxhd_decoder_select="blockdsp idctdsp"
1950 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1951 dvvideo_decoder_select="dvprofile idctdsp"
1952 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1953 dxa_decoder_deps="zlib"
1954 dxv_decoder_select="lzf texturedsp"
1955 eac3_decoder_select="ac3_decoder"
1956 eac3_encoder_select="ac3_encoder"
1957 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1958 eatgq_decoder_select="aandcttables idctdsp"
1959 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1960 exr_decoder_deps="zlib"
1961 ffv1_decoder_select="golomb rangecoder"
1962 ffv1_encoder_select="rangecoder"
1963 ffvhuff_decoder_select="huffyuv_decoder"
1964 ffvhuff_encoder_select="huffyuv_encoder"
1965 fic_decoder_select="golomb"
1966 flac_decoder_select="flacdsp golomb"
1967 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1968 flashsv_decoder_deps="zlib"
1969 flashsv_encoder_deps="zlib"
1970 flashsv2_decoder_deps="zlib"
1971 flv_decoder_select="h263_decoder"
1972 flv_encoder_select="h263_encoder"
1973 fourxm_decoder_select="blockdsp bswapdsp"
1974 fraps_decoder_select="bswapdsp huffman"
1975 g2m_decoder_deps="zlib"
1976 g2m_decoder_select="blockdsp idctdsp jpegtables"
1977 h261_decoder_select="mpeg_er mpegvideo"
1978 h261_encoder_select="aandcttables mpegvideoenc"
1979 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1980 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1981 h263i_decoder_select="h263_decoder"
1982 h263p_encoder_select="h263_encoder"
1983 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1984 h264_decoder_suggest="error_resilience"
1985 hap_decoder_select="snappy texturedsp"
1986 hap_encoder_deps="libsnappy"
1987 hap_encoder_select="texturedspenc"
1988 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1989 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1990 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1991 iac_decoder_select="imc_decoder"
1992 imc_decoder_select="bswapdsp fft mdct sinewin"
1993 indeo3_decoder_select="hpeldsp"
1994 indeo4_decoder_select="ividsp"
1995 indeo5_decoder_select="ividsp"
1996 interplay_video_decoder_select="hpeldsp"
1997 jpegls_decoder_select="golomb mjpeg_decoder"
1998 jpegls_encoder_select="golomb"
1999 jv_decoder_select="blockdsp"
2000 lagarith_decoder_select="huffyuvdsp"
2001 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2002 loco_decoder_select="golomb"
2003 magicyuv_decoder_select="huffyuvdsp"
2004 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2005 metasound_decoder_select="lsp mdct sinewin"
2006 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2007 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2008 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2009 mjpegb_decoder_select="mjpeg_decoder"
2010 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2011 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2012 mlp_decoder_select="mlp_parser"
2013 motionpixels_decoder_select="bswapdsp"
2014 mp1_decoder_select="mpegaudio"
2015 mp1float_decoder_select="mpegaudio"
2016 mp2_decoder_select="mpegaudio"
2017 mp2float_decoder_select="mpegaudio"
2018 mp3_decoder_select="mpegaudio"
2019 mp3adu_decoder_select="mpegaudio"
2020 mp3adufloat_decoder_select="mpegaudio"
2021 mp3float_decoder_select="mpegaudio"
2022 mp3on4_decoder_select="mpegaudio"
2023 mp3on4float_decoder_select="mpegaudio"
2024 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2025 mpc8_decoder_select="mpegaudiodsp"
2026 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2027 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2028 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2029 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2030 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2033 mpeg4_encoder_select="h263_encoder"
2034 msa1_decoder_select="mss34dsp"
2035 msmpeg4v1_decoder_select="h263_decoder"
2036 msmpeg4v2_decoder_select="h263_decoder"
2037 msmpeg4v2_encoder_select="h263_encoder"
2038 msmpeg4v3_decoder_select="h263_decoder"
2039 msmpeg4v3_encoder_select="h263_encoder"
2040 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2041 mts2_decoder_select="mss34dsp"
2042 mxpeg_decoder_select="mjpeg_decoder"
2043 nellymoser_decoder_select="mdct sinewin"
2044 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2045 nuv_decoder_select="idctdsp lzo"
2046 on2avc_decoder_select="mdct"
2047 opus_decoder_deps="avresample"
2048 opus_decoder_select="imdct15"
2049 png_decoder_deps="zlib"
2050 png_encoder_deps="zlib"
2051 png_encoder_select="huffyuvencdsp"
2052 prores_decoder_select="idctdsp"
2053 prores_encoder_select="fdctdsp"
2054 qcelp_decoder_select="lsp"
2055 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2056 ra_144_encoder_select="audio_frame_queue lpc"
2057 ralf_decoder_select="golomb"
2058 rscc_decoder_deps="zlib"
2059 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2060 rv10_encoder_select="h263_encoder"
2061 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2062 rv20_encoder_select="h263_encoder"
2063 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2064 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2065 screenpresso_decoder_deps="zlib"
2066 shorten_decoder_select="golomb"
2067 sipr_decoder_select="lsp"
2068 sp5x_decoder_select="mjpeg_decoder"
2069 svq1_decoder_select="hpeldsp"
2070 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2071 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2072 svq3_decoder_suggest="zlib"
2073 tak_decoder_select="audiodsp"
2074 tdsc_decoder_deps="zlib"
2075 tdsc_decoder_select="mjpeg_decoder"
2076 theora_decoder_select="vp3_decoder"
2077 thp_decoder_select="mjpeg_decoder"
2078 tiff_decoder_suggest="zlib"
2079 tiff_encoder_suggest="zlib"
2080 truehd_decoder_select="mlp_decoder"
2081 truemotion2_decoder_select="bswapdsp"
2082 truespeech_decoder_select="bswapdsp"
2083 tscc_decoder_deps="zlib"
2084 txd_decoder_select="texturedsp"
2085 twinvq_decoder_select="mdct lsp sinewin"
2086 utvideo_decoder_select="bswapdsp"
2087 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2088 vble_decoder_select="huffyuvdsp"
2089 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2090 vc1image_decoder_select="vc1_decoder"
2091 vorbis_decoder_select="mdct"
2092 vorbis_encoder_select="mdct"
2093 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2094 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2095 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2096 vp6a_decoder_select="vp6_decoder"
2097 vp6f_decoder_select="vp6_decoder"
2098 vp7_decoder_select="h264pred videodsp vp8dsp"
2099 vp8_decoder_select="h264pred videodsp vp8dsp"
2100 vp9_decoder_select="videodsp"
2101 webp_decoder_select="vp8_decoder"
2102 wmapro_decoder_select="mdct sinewin wma_freqs"
2103 wmav1_decoder_select="mdct sinewin wma_freqs"
2104 wmav1_encoder_select="mdct sinewin wma_freqs"
2105 wmav2_decoder_select="mdct sinewin wma_freqs"
2106 wmav2_encoder_select="mdct sinewin wma_freqs"
2107 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2108 wmv1_decoder_select="h263_decoder"
2109 wmv1_encoder_select="h263_encoder"
2110 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2111 wmv2_encoder_select="h263_encoder wmv2dsp"
2112 wmv3_decoder_select="vc1_decoder"
2113 wmv3image_decoder_select="wmv3_decoder"
2114 zerocodec_decoder_deps="zlib"
2115 zlib_decoder_deps="zlib"
2116 zlib_encoder_deps="zlib"
2117 zmbv_decoder_deps="zlib"
2118 zmbv_encoder_deps="zlib"
2119
2120 # hardware accelerators
2121 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2122 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2123 vaapi_deps="va_va_h"
2124 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2125 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2126 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2127
2128 h263_vaapi_hwaccel_deps="vaapi"
2129 h263_vaapi_hwaccel_select="h263_decoder"
2130 h264_d3d11va_hwaccel_deps="d3d11va"
2131 h264_d3d11va_hwaccel_select="h264_decoder"
2132 h264_dxva2_hwaccel_deps="dxva2"
2133 h264_dxva2_hwaccel_select="h264_decoder"
2134 h264_mmal_decoder_deps="mmal"
2135 h264_mmal_decoder_select="mmal"
2136 h264_mmal_hwaccel_deps="mmal"
2137 h264_omx_encoder_deps="omx"
2138 h264_qsv_hwaccel_deps="libmfx"
2139 h264_vaapi_hwaccel_deps="vaapi"
2140 h264_vaapi_hwaccel_select="h264_decoder"
2141 h264_vda_hwaccel_deps="vda"
2142 h264_vda_hwaccel_select="h264_decoder"
2143 h264_vda_old_hwaccel_deps="vda"
2144 h264_vda_old_hwaccel_select="h264_decoder"
2145 h264_vdpau_hwaccel_deps="vdpau"
2146 h264_vdpau_hwaccel_select="h264_decoder"
2147 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2148 hevc_d3d11va_hwaccel_select="hevc_decoder"
2149 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2150 hevc_dxva2_hwaccel_select="hevc_decoder"
2151 hevc_qsv_hwaccel_deps="libmfx"
2152 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2153 hevc_vdpau_hwaccel_select="hevc_decoder"
2154 mpeg1_vdpau_hwaccel_deps="vdpau"
2155 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2156 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2157 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2158 mpeg2_dxva2_hwaccel_deps="dxva2"
2159 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2160 mpeg2_mmal_decoder_deps="mmal"
2161 mpeg2_mmal_decoder_select="mmal"
2162 mpeg2_mmal_hwaccel_deps="mmal"
2163 mpeg2_qsv_hwaccel_deps="libmfx"
2164 mpeg2_vaapi_hwaccel_deps="vaapi"
2165 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2166 mpeg2_vdpau_hwaccel_deps="vdpau"
2167 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2168 mpeg4_omx_encoder_deps="omx"
2169 mpeg4_vaapi_hwaccel_deps="vaapi"
2170 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2171 mpeg4_vdpau_hwaccel_deps="vdpau"
2172 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2173 vc1_d3d11va_hwaccel_deps="d3d11va"
2174 vc1_d3d11va_hwaccel_select="vc1_decoder"
2175 vc1_dxva2_hwaccel_deps="dxva2"
2176 vc1_dxva2_hwaccel_select="vc1_decoder"
2177 vc1_mmal_decoder_deps="mmal"
2178 vc1_mmal_decoder_select="mmal"
2179 vc1_mmal_hwaccel_deps="mmal"
2180 vc1_vaapi_hwaccel_deps="vaapi"
2181 vc1_vaapi_hwaccel_select="vc1_decoder"
2182 vc1_vdpau_hwaccel_deps="vdpau"
2183 vc1_vdpau_hwaccel_select="vc1_decoder"
2184 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2185 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2186 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2187 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2188
2189 # hardware-accelerated codecs
2190 nvenc_deps_any="dlopen LoadLibrary"
2191 nvenc_extralibs='$ldl'
2192 omx_deps="dlopen pthreads"
2193 omx_extralibs='$ldl'
2194 qsvdec_select="qsv"
2195 qsvenc_select="qsv"
2196 vaapi_encode_deps="vaapi"
2197
2198 hwupload_cuda_filter_deps="cuda"
2199 scale_npp_filter_deps="cuda libnpp"
2200
2201 h264_nvenc_encoder_deps="nvenc"
2202 h264_qsv_decoder_deps="libmfx"
2203 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2204 h264_qsv_encoder_deps="libmfx"
2205 h264_qsv_encoder_select="qsvenc"
2206 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2207 h264_vaapi_encoder_select="vaapi_encode golomb"
2208
2209 hevc_nvenc_encoder_deps="nvenc"
2210 hevc_qsv_decoder_deps="libmfx"
2211 hevc_qsv_encoder_deps="libmfx"
2212 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2213 hevc_qsv_encoder_select="qsvenc"
2214 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2215 hevc_vaapi_encoder_select="vaapi_encode golomb"
2216 mpeg2_qsv_decoder_deps="libmfx"
2217 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2218 mpeg2_qsv_encoder_deps="libmfx"
2219 mpeg2_qsv_encoder_select="qsvenc"
2220
2221 nvenc_h264_encoder_deps="nvenc"
2222 nvenc_hevc_encoder_deps="nvenc"
2223
2224 # parsers
2225 h264_parser_select="golomb h264dsp h264parse"
2226 hevc_parser_select="golomb"
2227 mpegvideo_parser_select="mpegvideo"
2228 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2229 vc1_parser_select="vc1dsp"
2230
2231 # bitstream_filters
2232 mjpeg2jpeg_bsf_select="jpegtables"
2233
2234 # external libraries
2235 libdcadec_decoder_deps="libdcadec"
2236 libfaac_encoder_deps="libfaac"
2237 libfaac_encoder_select="audio_frame_queue"
2238 libfdk_aac_decoder_deps="libfdk_aac"
2239 libfdk_aac_encoder_deps="libfdk_aac"
2240 libfdk_aac_encoder_select="audio_frame_queue"
2241 libgsm_decoder_deps="libgsm"
2242 libgsm_encoder_deps="libgsm"
2243 libgsm_ms_decoder_deps="libgsm"
2244 libgsm_ms_encoder_deps="libgsm"
2245 libilbc_decoder_deps="libilbc"
2246 libilbc_encoder_deps="libilbc"
2247 libkvazaar_encoder_deps="libkvazaar"
2248 libmp3lame_encoder_deps="libmp3lame"
2249 libmp3lame_encoder_select="audio_frame_queue"
2250 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2251 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2252 libopencore_amrnb_encoder_select="audio_frame_queue"
2253 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2254 libopenh264_decoder_deps="libopenh264"
2255 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2256 libopenh264_encoder_deps="libopenh264"
2257 libopenjpeg_decoder_deps="libopenjpeg"
2258 libopenjpeg_encoder_deps="libopenjpeg"
2259 libopus_decoder_deps="libopus"
2260 libopus_encoder_deps="libopus"
2261 libopus_encoder_select="audio_frame_queue"
2262 libschroedinger_decoder_deps="libschroedinger"
2263 libschroedinger_encoder_deps="libschroedinger"
2264 libspeex_decoder_deps="libspeex"
2265 libspeex_encoder_deps="libspeex"
2266 libspeex_encoder_select="audio_frame_queue"
2267 libtheora_encoder_deps="libtheora"
2268 libtwolame_encoder_deps="libtwolame"
2269 libvo_aacenc_encoder_deps="libvo_aacenc"
2270 libvo_aacenc_encoder_select="audio_frame_queue"
2271 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2272 libvorbis_encoder_deps="libvorbis"
2273 libvorbis_encoder_select="audio_frame_queue"
2274 libvpx_vp8_decoder_deps="libvpx"
2275 libvpx_vp8_encoder_deps="libvpx"
2276 libvpx_vp9_decoder_deps="libvpx"
2277 libvpx_vp9_encoder_deps="libvpx"
2278 libwavpack_encoder_deps="libwavpack"
2279 libwebp_encoder_deps="libwebp"
2280 libx262_encoder_deps="libx262"
2281 libx264_encoder_deps="libx264"
2282 libx265_encoder_deps="libx265"
2283 libxavs_encoder_deps="libxavs"
2284 libxvid_encoder_deps="libxvid"
2285
2286 # demuxers / muxers
2287 ac3_demuxer_select="ac3_parser"
2288 asf_demuxer_select="riffdec"
2289 asf_muxer_select="riffenc"
2290 asf_stream_muxer_select="asf_muxer"
2291 avi_demuxer_select="iso_media riffdec"
2292 avi_muxer_select="riffenc"
2293 avisynth_demuxer_deps="avisynth"
2294 avisynth_demuxer_select="riffdec"
2295 caf_demuxer_select="iso_media riffdec"
2296 dash_muxer_select="mp4_muxer"
2297 dirac_demuxer_select="dirac_parser"
2298 dv_demuxer_select="dvprofile"
2299 dv_muxer_select="dvprofile"
2300 dxa_demuxer_select="riffdec"
2301 eac3_demuxer_select="ac3_parser"
2302 f4v_muxer_select="mov_muxer"
2303 flac_demuxer_select="flac_parser"
2304 hds_muxer_select="flv_muxer"
2305 hls_muxer_select="mpegts_muxer"
2306 ipod_muxer_select="mov_muxer"
2307 ismv_muxer_select="mov_muxer"
2308 matroska_audio_muxer_select="matroska_muxer"
2309 matroska_demuxer_select="iso_media riffdec"
2310 matroska_demuxer_suggest="bzlib lzo zlib"
2311 matroska_muxer_select="iso_media riffenc"
2312 mmf_muxer_select="riffenc"
2313 mov_demuxer_select="iso_media riffdec"
2314 mov_demuxer_suggest="zlib"
2315 mov_muxer_select="iso_media riffenc rtpenc_chain"
2316 mp3_demuxer_select="mpegaudio_parser"
2317 mp4_muxer_select="mov_muxer"
2318 mpegts_demuxer_select="iso_media"
2319 mpegts_muxer_select="adts_muxer latm_muxer"
2320 mpegtsraw_demuxer_select="mpegts_demuxer"
2321 mxf_d10_muxer_select="mxf_muxer"
2322 nut_muxer_select="riffenc"
2323 nuv_demuxer_select="riffdec"
2324 oga_muxer_select="ogg_muxer"
2325 ogg_demuxer_select="dirac_parse"
2326 opus_muxer_select="ogg_muxer"
2327 psp_muxer_select="mov_muxer"
2328 rtp_demuxer_select="sdp_demuxer"
2329 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2330 rtsp_demuxer_select="http_protocol rtpdec"
2331 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2332 sap_demuxer_select="sdp_demuxer"
2333 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2334 sdp_demuxer_select="rtpdec"
2335 smoothstreaming_muxer_select="ismv_muxer"
2336 spdif_muxer_select="aac_parser"
2337 spx_muxer_select="ogg_muxer"
2338 swf_demuxer_suggest="zlib"
2339 tak_demuxer_select="tak_parser"
2340 tg2_muxer_select="mov_muxer"
2341 tgp_muxer_select="mov_muxer"
2342 w64_demuxer_select="wav_demuxer"
2343 wav_demuxer_select="riffdec"
2344 wav_muxer_select="riffenc"
2345 webm_muxer_select="iso_media riffenc"
2346 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2347 wtv_demuxer_select="mpegts_demuxer riffdec"
2348 xmv_demuxer_select="riffdec"
2349 xwma_demuxer_select="riffdec"
2350
2351 # indevs / outdevs
2352 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2353 alsa_outdev_deps="alsa_asoundlib_h"
2354 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2355 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2356 dv1394_indev_deps="dv1394"
2357 dv1394_indev_select="dv_demuxer"
2358 fbdev_indev_deps="linux_fb_h"
2359 jack_indev_deps="jack_jack_h"
2360 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2361 libcdio_indev_deps="libcdio"
2362 libdc1394_indev_deps="libdc1394"
2363 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2364 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2365 pulse_indev_deps="libpulse"
2366 sndio_indev_deps="sndio_h"
2367 sndio_outdev_deps="sndio_h"
2368 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2369 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2370 vfwcap_indev_extralibs="-lavicap32"
2371 xcbgrab_indev_deps="libxcb"
2372
2373 # protocols
2374 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2375 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2376 ffrtmpcrypt_protocol_select="tcp_protocol"
2377 ffrtmphttp_protocol_deps="!librtmp_protocol"
2378 ffrtmphttp_protocol_select="http_protocol"
2379 gopher_protocol_select="network"
2380 http_protocol_select="tcp_protocol"
2381 httpproxy_protocol_select="tcp_protocol"
2382 https_protocol_select="tls_protocol"
2383 icecast_protocol_select="http_protocol"
2384 librtmp_protocol_deps="librtmp"
2385 librtmpe_protocol_deps="librtmp"
2386 librtmps_protocol_deps="librtmp"
2387 librtmpt_protocol_deps="librtmp"
2388 librtmpte_protocol_deps="librtmp"
2389 mmsh_protocol_select="http_protocol"
2390 mmst_protocol_select="network"
2391 rtmp_protocol_deps="!librtmp_protocol"
2392 rtmp_protocol_select="tcp_protocol"
2393 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2394 rtmps_protocol_deps="!librtmp_protocol"
2395 rtmps_protocol_select="tls_protocol"
2396 rtmpt_protocol_select="ffrtmphttp_protocol"
2397 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2398 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2399 rtp_protocol_select="udp_protocol"
2400 sctp_protocol_deps="struct_sctp_event_subscribe"
2401 sctp_protocol_select="network"
2402 srtp_protocol_select="rtp_protocol srtp"
2403 tcp_protocol_select="network"
2404 tls_gnutls_protocol_deps="gnutls"
2405 tls_gnutls_protocol_select="tcp_protocol"
2406 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2407 tls_openssl_protocol_select="tcp_protocol"
2408 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2409 udp_protocol_select="network"
2410 unix_protocol_deps="sys_un_h"
2411 unix_protocol_select="network"
2412
2413 # filters
2414 blackframe_filter_deps="gpl"
2415 boxblur_filter_deps="gpl"
2416 bs2b_filter_deps="libbs2b"
2417 cropdetect_filter_deps="gpl"
2418 deinterlace_qsv_filter_deps="libmfx"
2419 delogo_filter_deps="gpl"
2420 drawtext_filter_deps="libfreetype"
2421 frei0r_filter_deps="frei0r dlopen"
2422 frei0r_filter_extralibs='$ldl'
2423 frei0r_src_filter_deps="frei0r dlopen"
2424 frei0r_src_filter_extralibs='$ldl'
2425 hqdn3d_filter_deps="gpl"
2426 interlace_filter_deps="gpl"
2427 ocv_filter_deps="libopencv"
2428 resample_filter_deps="avresample"
2429 scale_filter_deps="swscale"
2430 scale_qsv_filter_deps="libmfx"
2431 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2432
2433 # examples
2434 avcodec_example_deps="avcodec avutil"
2435 filter_audio_example_deps="avfilter avutil"
2436 metadata_example_deps="avformat avutil"
2437 output_example_deps="avcodec avformat avutil swscale"
2438 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2439 transcode_aac_example_deps="avcodec avformat avresample"
2440
2441 # libraries, in linking order
2442 avcodec_deps="avutil"
2443 avdevice_deps="avformat avcodec avutil"
2444 avfilter_deps="avutil"
2445 avformat_deps="avcodec avutil"
2446 avresample_deps="avutil"
2447 swscale_deps="avutil"
2448
2449 # programs
2450 avconv_deps="avcodec avfilter avformat avresample swscale"
2451 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2452 fps_filter null_filter resample_filter scale_filter
2453 trim_filter"
2454 avplay_deps="avcodec avfilter avformat avresample sdl"
2455 avplay_libs='$sdl_libs'
2456 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2457 avprobe_deps="avcodec avformat"
2458
2459 # documentation
2460 pod2man_deps="doc"
2461 texi2html_deps="doc"
2462
2463 # default parameters
2464
2465 logfile="config.log"
2466
2467 # installation paths
2468 prefix_default="/usr/local"
2469 bindir_default='${prefix}/bin'
2470 datadir_default='${prefix}/share/avconv'
2471 docdir_default='${prefix}/share/doc/libav'
2472 incdir_default='${prefix}/include'
2473 libdir_default='${prefix}/lib'
2474 mandir_default='${prefix}/share/man'
2475 shlibdir_default="$libdir_default"
2476
2477 # toolchain
2478 ar_default="ar"
2479 cc_default="gcc"
2480 host_cc_default="gcc"
2481 cp_f="cp -f"
2482 ln_s="ln -s -f"
2483 nm_default="nm -g"
2484 objformat="elf"
2485 pkg_config_default=pkg-config
2486 ranlib="ranlib"
2487 strip="strip"
2488 version_script='--version-script'
2489 yasmexe="yasm"
2490
2491 # machine
2492 arch_default=$(uname -m)
2493 cpu="generic"
2494 intrinsics="none"
2495
2496 # OS
2497 target_os_default=$(tolower $(uname -s))
2498 host_os=$target_os_default
2499
2500 # configurable options
2501 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2502
2503 enable asm
2504 enable debug
2505 enable doc
2506 enable faan faandct faanidct
2507 enable optimizations
2508 enable safe_bitstream_reader
2509 enable static
2510 enable swscale_alpha
2511 enable valgrind_backtrace
2512
2513 # By default, enable only those hwaccels that have no external dependencies.
2514 enable d3d11va dxva2 vda vdpau
2515
2516 # build settings
2517 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2518 LIBPREF="lib"
2519 LIBSUF=".a"
2520 FULLNAME='$(NAME)$(BUILDSUF)'
2521 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2522 SLIBPREF="lib"
2523 SLIBSUF=".so"
2524 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2525 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2526 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2527 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2528 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2529 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2530 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2531
2532 asflags_filter=echo
2533 cflags_filter=echo
2534 ldflags_filter=echo
2535
2536 AS_C='-c'
2537 AS_O='-o $@'
2538 CC_C='-c'
2539 CC_E='-E -o $@'
2540 CC_O='-o $@'
2541 OBJCC_C='-c'
2542 OBJCC_E='-E -o $@'
2543 OBJCC_O='-o $@'
2544 LD_O='-o $@'
2545 LD_LIB='-l%'
2546 LD_PATH='-L'
2547 HOSTCC_C='-c'
2548 HOSTCC_E='-E -o $@'
2549 HOSTCC_O='-o $@'
2550 HOSTLD_O='-o $@'
2551
2552 host_libs='-lm'
2553 host_cflags_filter=echo
2554 host_ldflags_filter=echo
2555
2556 target_path='$(CURDIR)'
2557
2558 # since the object filename is not given with the -MM flag, the compiler
2559 # is only able to print the basename, and we must add the path ourselves
2560 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2561 DEPFLAGS='-MM'
2562
2563 # find source path
2564 if test -f configure; then
2565 source_path=.
2566 else
2567 source_path=$(cd $(dirname "$0"); pwd)
2568 echo "$source_path" | grep -q '[[:blank:]]' &&
2569 die "Out of tree builds are impossible with whitespace in source path."
2570 test -e "$source_path/config.h" &&
2571 die "Out of tree builds are impossible with config.h in source dir."
2572 fi
2573
2574 for v in "$@"; do
2575 r=${v#*=}
2576 l=${v%"$r"}
2577 r=$(sh_quote "$r")
2578 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2579 done
2580
2581 find_things(){
2582 thing=$1
2583 pattern=$2
2584 file=$source_path/$3
2585 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2586 }
2587
2588 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2589 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2590 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2591 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2592 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2593 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2594 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2595 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2596 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2597
2598 find_things_extern(){
2599 thing=$1
2600 pattern=$2
2601 file=$source_path/$3
2602 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2603 }
2604
2605 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2606 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2607
2608 ALL_COMPONENTS="
2609 $BSF_LIST
2610 $DECODER_LIST
2611 $DEMUXER_LIST
2612 $ENCODER_LIST
2613 $FILTER_LIST
2614 $HWACCEL_LIST
2615 $INDEV_LIST
2616 $MUXER_LIST
2617 $OUTDEV_LIST
2618 $PARSER_LIST
2619 $PROTOCOL_LIST
2620 "
2621
2622 for n in $COMPONENT_LIST; do
2623 v=$(toupper ${n%s})_LIST
2624 eval enable \$$v
2625 eval ${n}_if_any="\$$v"
2626 done
2627
2628 enable $ARCH_EXT_LIST
2629
2630 die_unknown(){
2631 echo "Unknown option \"$1\"."
2632 echo "See $0 --help for available options."
2633 exit 1
2634 }
2635
2636 print_3_columns() {
2637 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2638 }
2639
2640 show_list() {
2641 suffix=_$1
2642 shift
2643 echo $* | sed s/$suffix//g | print_3_columns
2644 exit 0
2645 }
2646
2647 rand_list(){
2648 IFS=', '
2649 set -- $*
2650 unset IFS
2651 for thing; do
2652 comp=${thing%:*}
2653 prob=${thing#$comp}
2654 prob=${prob#:}
2655 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2656 echo "prob ${prob:-0.5}"
2657 printf '%s\n' $comp
2658 done
2659 }
2660
2661 do_random(){
2662 action=$1
2663 shift
2664 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2665 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2666 }
2667
2668 for opt do
2669 optval="${opt#*=}"
2670 case "$opt" in
2671 --extra-ldflags=*)
2672 add_ldflags $optval
2673 ;;
2674 --extra-ldexeflags=*)
2675 add_ldexeflags $optval
2676 ;;
2677 --extra-libs=*)
2678 add_extralibs $optval
2679 ;;
2680 --disable-devices)
2681 disable $INDEV_LIST $OUTDEV_LIST
2682 ;;
2683 --enable-debug=*)
2684 debuglevel="$optval"
2685 ;;
2686 --disable-programs)
2687 disable $PROGRAM_LIST
2688 ;;
2689 --disable-everything)
2690 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2691 ;;
2692 --disable-all)
2693 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2694 disable $LIBRARY_LIST $PROGRAM_LIST doc
2695 ;;
2696 --enable-random|--disable-random)
2697 action=${opt%%-random}
2698 do_random ${action#--} $COMPONENT_LIST
2699 ;;
2700 --enable-random=*|--disable-random=*)
2701 action=${opt%%-random=*}
2702 do_random ${action#--} $optval
2703 ;;
2704 --enable-*=*|--disable-*=*)
2705 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2706 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2707 eval list=\$$(toupper $thing)_LIST
2708 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2709 $action $(filter "$name" $list)
2710 ;;
2711 --enable-avserver|--disable-avserver*)
2712 warn "avserver has been removed, the ${opt} option is only"\
2713 "provided for compatibility and will be removed in the future"
2714 ;;
2715 --enable-?*|--disable-?*)
2716 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2717 if is_in $option $COMPONENT_LIST; then
2718 test $action = disable && action=unset
2719 eval $action \$$(toupper ${option%s})_LIST
2720 elif is_in $option $CMDLINE_SELECT; then
2721 $action $option
2722 else
2723 die_unknown $opt
2724 fi
2725 ;;
2726 --list-*)
2727 NAME="${opt#--list-}"
2728 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2729 NAME=${NAME%s}
2730 eval show_list $NAME \$$(toupper $NAME)_LIST
2731 ;;
2732 --help|-h) show_help
2733 ;;
2734 *)
2735 optname="${opt%%=*}"
2736 optname="${optname#--}"
2737 optname=$(echo "$optname" | sed 's/-/_/g')
2738 if is_in $optname $CMDLINE_SET; then
2739 eval $optname='$optval'
2740 elif is_in $optname $CMDLINE_APPEND; then
2741 append $optname "$optval"
2742 else
2743 die_unknown $opt
2744 fi
2745 ;;
2746 esac
2747 done
2748
2749 for e in $env; do
2750 eval "export $e"
2751 done
2752
2753 disabled logging && logfile=/dev/null
2754
2755 # Disable all the library-specific components if the library itself
2756 # is disabled, see AVCODEC_LIST and following _LIST variables.
2757
2758 disable_components(){
2759 disabled ${1} && disable $(
2760 eval components="\$$(toupper ${1})_COMPONENTS"
2761 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2762 )
2763 }
2764
2765 map 'disable_components $v' $LIBRARY_LIST
2766
2767 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2768 set >> $logfile
2769
2770 case "$toolchain" in
2771 *-asan)
2772 cc_default="${toolchain%-asan}"
2773 add_cflags -fsanitize=address
2774 add_ldflags -fsanitize=address
2775 ;;
2776 *-msan)
2777 cc_default="${toolchain%-msan}"
2778 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2779 add_ldflags -fsanitize=memory
2780 ;;
2781 *-tsan)
2782 cc_default="${toolchain%-tsan}"
2783 add_cflags -fsanitize=thread -pie
2784 add_ldflags -fsanitize=thread -pie
2785 case "$toolchain" in
2786 gcc-tsan)
2787 add_cflags -fPIC
2788 add_ldflags -fPIC
2789 ;;
2790 esac
2791 ;;
2792 *-usan)
2793 cc_default="${toolchain%-usan}"
2794 add_cflags -fsanitize=undefined
2795 add_ldflags -fsanitize=undefined
2796 case "$toolchain" in
2797 clang-usan)
2798 add_cflags -O1
2799 ;;
2800 esac
2801 ;;
2802 valgrind-*)
2803 target_exec_default="valgrind"
2804 case "$toolchain" in
2805 valgrind-massif)
2806 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2807 ;;
2808 valgrind-memcheck)
2809 target_exec_args="--track-origins=yes --leak-check=full"
2810 ;;
2811 esac
2812 ;;
2813 msvc)
2814 # Check whether the current MSVC version needs the C99 converter.
2815 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2816 # support enough of C99 to build libav. Default to the new
2817 # behaviour if the regexp was unable to match anything, since this
2818 # successfully parses the version number of existing supported
2819 # versions that require the converter (MSVC 2010 and 2012).
2820 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2821 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2822 cc_default="cl"
2823 else
2824 cc_default="c99wrap cl"
2825 fi
2826 ld_default="$source_path/compat/windows/mslink"
2827 nm_default="dumpbin -symbols"
2828 ar_default="lib"
2829 case "$arch" in
2830 arm*)
2831 as_default="armasm"
2832 ;;
2833 esac
2834 target_os_default="win32"
2835 # Use a relative path for TMPDIR. This makes sure all the
2836 # ffconf temp files are written with a relative path, avoiding
2837 # issues with msys/win32 path conversion for MSVC parameters
2838 # such as -Fo<file> or -out:<file>.
2839 TMPDIR=.
2840 ;;
2841 icl)
2842 cc_default="icl"
2843 ld_default="xilink"
2844 nm_default="dumpbin -symbols"
2845 ar_default="xilib"
2846 target_os_default="win32"
2847 TMPDIR=.
2848 ;;
2849 gcov)
2850 add_cflags -fprofile-arcs -ftest-coverage
2851 add_ldflags -fprofile-arcs -ftest-coverage
2852 ;;
2853 llvm-cov)
2854 add_cflags -fprofile-arcs -ftest-coverage
2855 add_ldflags --coverage
2856 ;;
2857 hardened)
2858 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2859 add_cflags -fno-strict-overflow -fstack-protector-all
2860 add_ldflags -Wl,-z,relro -Wl,-z,now
2861 ;;
2862 ?*)
2863 die "Unknown toolchain $toolchain"
2864 ;;
2865 esac
2866
2867 test -n "$cross_prefix" && enable cross_compile
2868
2869 if enabled cross_compile; then
2870 test -n "$arch" && test -n "$target_os" ||
2871 die "Must specify target arch and OS when cross-compiling"
2872 fi
2873
2874 ar_default="${cross_prefix}${ar_default}"
2875 cc_default="${cross_prefix}${cc_default}"
2876 occ_default="${cross_prefix}${occ_default}"
2877 nm_default="${cross_prefix}${nm_default}"
2878 pkg_config_default="${cross_prefix}${pkg_config_default}"
2879 ranlib="${cross_prefix}${ranlib}"
2880 strip="${cross_prefix}${strip}"
2881
2882 sysinclude_default="${sysroot}/usr/include"
2883
2884 set_default arch cc pkg_config sysinclude target_exec target_os
2885 enabled cross_compile || host_cc_default=$cc
2886 set_default host_cc
2887
2888 if ! $pkg_config --version >/dev/null 2>&1; then
2889 warn "$pkg_config not found, library detection may fail."
2890 pkg_config=false
2891 fi
2892
2893 exesuf() {
2894 case $1 in
2895 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2896 esac
2897 }
2898
2899 EXESUF=$(exesuf $target_os)
2900 HOSTEXESUF=$(exesuf $host_os)
2901
2902 # set temporary file name
2903 : ${TMPDIR:=$TEMPDIR}
2904 : ${TMPDIR:=$TMP}
2905 : ${TMPDIR:=/tmp}
2906
2907 if ! check_cmd mktemp -u XXXXXX; then
2908 # simple replacement for missing mktemp
2909 # NOT SAFE FOR GENERAL USE
2910 mktemp(){
2911 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2912 }
2913 fi
2914
2915 tmpfile(){
2916 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2917 (set -C; exec > $tmp) 2>/dev/null ||
2918 die "Unable to create temporary file in $TMPDIR."
2919 append TMPFILES $tmp
2920 eval $1=$tmp
2921 }
2922
2923 trap 'rm -f -- $TMPFILES' EXIT
2924
2925 tmpfile TMPASM .asm
2926 tmpfile TMPC .c
2927 tmpfile TMPE $EXESUF
2928 tmpfile TMPH .h
2929 tmpfile TMPO .o
2930 tmpfile TMPS .S
2931 tmpfile TMPSH .sh
2932 tmpfile TMPV .ver
2933
2934 unset -f mktemp
2935
2936 chmod +x $TMPE
2937
2938 # make sure we can execute files in $TMPDIR
2939 cat > $TMPSH 2>> $logfile <<EOF
2940 #! /bin/sh
2941 EOF
2942 chmod +x $TMPSH >> $logfile 2>&1
2943 if ! $TMPSH >> $logfile 2>&1; then
2944 cat <<EOF
2945 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2946 variable to another directory and make sure that it is not mounted noexec.
2947 EOF
2948 die "Sanity test failed."
2949 fi
2950
2951 armasm_flags(){
2952 for flag; do
2953 case $flag in
2954 # Filter out MSVC cl.exe options from cflags that shouldn't
2955 # be passed to gas-preprocessor
2956 -M[TD]*) ;;
2957 *) echo $flag ;;
2958 esac
2959 done
2960 }
2961
2962 ccc_flags(){
2963 for flag; do
2964 case $flag in
2965 -std=c99) echo -c99 ;;
2966 -mcpu=*) echo -arch ${flag#*=} ;;
2967 -mieee) echo -ieee ;;
2968 -O*|-fast) echo $flag ;;
2969 -fno-math-errno) echo -assume nomath_errno ;;
2970 -g) echo -g3 ;;
2971 -Wall) echo -msg_enable level2 ;;
2972 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2973 -Wl,*) echo $flag ;;
2974 -f*|-W*) ;;
2975 *) echo $flag ;;
2976 esac
2977 done
2978 }
2979
2980 cparser_flags(){
2981 for flag; do
2982 case $flag in
2983 -Wno-switch) echo -Wno-switch-enum ;;
2984 -Wno-format-zero-length) ;;
2985 -Wdisabled-optimization) ;;
2986 -Wno-pointer-sign) echo -Wno-other ;;
2987 *) echo $flag ;;
2988 esac
2989 done
2990 }
2991
2992 msvc_common_flags(){
2993 for flag; do
2994 case $flag in
2995 # In addition to specifying certain flags under the compiler
2996 # specific filters, they must be specified here as well or else the
2997 # generic catch all at the bottom will print the original flag.
2998 -Wall) ;;
2999 -std=c99) ;;
3000 # Common flags
3001 -fomit-frame-pointer) ;;
3002 -g) echo -Z7 ;;
3003 -fno-math-errno) ;;
3004 -fno-common) ;;
3005 -fno-signed-zeros) ;;
3006 -fPIC) ;;
3007 -mthumb) ;;
3008 -march=*) ;;
3009 -lz) echo zlib.lib ;;
3010 -lavifil32) echo vfw32.lib ;;
3011 -lavicap32) echo vfw32.lib user32.lib ;;
3012 -lx264) echo libx264.lib ;;
3013 -l*) echo ${flag#-l}.lib ;;
3014 -L*) echo -libpath:${flag#-L} ;;
3015 *) echo $flag ;;
3016 esac
3017 done
3018 }
3019
3020 msvc_flags(){
3021 msvc_common_flags "$@"
3022 for flag; do
3023 case $flag in
3024 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3025 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3026 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3027 -wd4273 -wd4554 -wd4701 ;;
3028 esac
3029 done
3030 }
3031
3032 icl_flags(){
3033 msvc_common_flags "$@"
3034 for flag; do
3035 case $flag in
3036 # Despite what Intel's documentation says -Wall, which is supported
3037 # on Windows, does enable remarks so disable them here.
3038 -Wall) echo $flag -Qdiag-disable:remark ;;
3039 -std=c99) echo -Qstd=c99 ;;
3040 esac
3041 done
3042 }
3043
3044 pgi_flags(){
3045 for flag; do
3046 case $flag in
3047 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3048 -fomit-frame-pointer) echo -Mnoframe ;;
3049 -g) echo -gopt ;;
3050 *) echo $flag ;;
3051 esac
3052 done
3053 }
3054
3055 suncc_flags(){
3056 for flag; do
3057 case $flag in
3058 -march=*|-mcpu=*)
3059 case "${flag#*=}" in
3060 native) echo -xtarget=native ;;
3061 v9|niagara) echo -xarch=sparc ;;
3062 ultrasparc) echo -xarch=sparcvis ;;
3063 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3064 i586|pentium) echo -xchip=pentium ;;
3065 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3066 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3067 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3068 pentium4*) echo -xtarget=pentium4 ;;
3069 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3070 *-sse3) echo -xarch=sse3 ;;
3071 core2) echo -xarch=ssse3 -xchip=core2 ;;
3072 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3073 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3074 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3075 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3076 k8|opteron|athlon64|athlon-fx)
3077 echo -xarch=sse2a ;;
3078 athlon*) echo -xarch=pentium_proa ;;
3079 esac
3080 ;;
3081 -std=c99) echo -xc99 ;;
3082 -fomit-frame-pointer) echo -xregs=frameptr ;;
3083 -fPIC) echo -KPIC -xcode=pic32 ;;
3084 -W*,*) echo $flag ;;
3085 -f*-*|-W*|-mimpure-text) ;;
3086 -shared) echo -G ;;
3087 *) echo $flag ;;
3088 esac
3089 done
3090 }
3091
3092 tms470_flags(){
3093 for flag; do
3094 case $flag in
3095 -march=*|-mcpu=*)
3096 case "${flag#*=}" in
3097 armv7-a|cortex-a*) echo -mv=7a8 ;;
3098 armv7-r|cortex-r*) echo -mv=7r4 ;;
3099 armv7-m|cortex-m*) echo -mv=7m3 ;;
3100 armv6*|arm11*) echo -mv=6 ;;
3101 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3102 echo -mv=5e ;;
3103 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3104 esac
3105 ;;
3106 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3107 -mfpu=vfp) echo --float_support=vfpv2 ;;
3108 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3109 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3110 -msoft-float) echo --float_support=vfplib ;;
3111 -O[0-3]|-mf=*) echo $flag ;;
3112 -g) echo -g -mn ;;
3113 -pds=*) echo $flag ;;
3114 -D*|-I*) echo $flag ;;
3115 --gcc|--abi=*) echo $flag ;;
3116 -me) echo $flag ;;
3117 esac
3118 done
3119 }
3120
3121 probe_cc(){
3122 pfx=$1
3123 _cc=$2
3124
3125 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3126 unset _ld_o _ldflags _ld_lib _ld_path
3127 unset _depflags _DEPCMD _DEPFLAGS
3128 _flags_filter=echo
3129
3130 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3131 _type=llvm_gcc
3132 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3133 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3134 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3135 _cflags_speed='-O3'
3136 _cflags_size='-Os'
3137 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3138 _type=gcc
3139 gcc_version=$($_cc --version | head -n1)
3140 gcc_basever=$($_cc -dumpversion)
3141 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3142 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3143 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3144 if ! $_cc -dumpversion | grep -q '^2\.'; then
3145 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3146 fi
3147 _cflags_speed='-O3'
3148 _cflags_size='-Os'
3149 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3150 _type=icc
3151 _ident=$($_cc --version | head -n1)
3152 _depflags='-MMD'
3153 _cflags_speed='-O3'
3154 _cflags_size='-Os'
3155 _cflags_noopt='-O1'
3156 elif $_cc -v 2>&1 | grep -q xlc; then
3157 _type=xlc
3158 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3159 _cflags_speed='-O5'
3160 _cflags_size='-O5 -qcompact'
3161 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3162 _type=ccc
3163 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3164 _DEPFLAGS='-M'
3165 _cflags_speed='-fast'
3166 _cflags_size='-O1'
3167 _flags_filter=ccc_flags
3168 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3169 test -d "$sysroot" || die "No valid sysroot specified."
3170 _type=armcc
3171 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3172 armcc_conf="$PWD/armcc.conf"
3173 $_cc --arm_linux_configure \
3174 --arm_linux_config_file="$armcc_conf" \
3175 --configure_sysroot="$sysroot" \
3176 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3177 die "Error creating armcc configuration file."
3178 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3179 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3180 as_default="${cross_prefix}gcc"
3181 _depflags='-MMD'
3182 _cflags_speed='-O3'
3183 _cflags_size='-Os'
3184 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3185 _type=tms470
3186 _ident=$($_cc -version | head -n1 | tr -s ' ')
3187 _flags='--gcc --abi=eabi -me'
3188 _cc_e='-ppl -fe=$@'
3189 _cc_o='-fe=$@'
3190 _depflags='-ppa -ppd=$(@:.o=.d)'
3191 _cflags_speed='-O3 -mf=5'
3192 _cflags_size='-O3 -mf=2'
3193 _flags_filter=tms470_flags
3194 elif $_cc -v 2>&1 | grep -q clang; then
3195 _type=clang
3196 _ident=$($_cc --version 2>/dev/null | head -n1)
3197 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3198 _cflags_speed='-O3'
3199 _cflags_size='-Os'
3200 elif $_cc -V 2>&1 | grep -q Sun; then
3201 _type=suncc
3202 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3203 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3204 _DEPFLAGS='-xM1 -xc99'
3205 _ldflags='-std=c99'
3206 _cflags_speed='-O5'
3207 _cflags_size='-O5 -xspace'
3208 _flags_filter=suncc_flags
3209 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3210 _type=pathscale
3211 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3212 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3213 _cflags_speed='-O2'
3214 _cflags_size='-Os'
3215 _flags_filter='filter_out -Wdisabled-optimization'
3216 elif $_cc -v 2>&1 | grep -q Open64; then
3217 _type=open64
3218 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3219 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3220 _cflags_speed='-O2'
3221 _cflags_size='-Os'
3222 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3223 elif $_cc -V 2>&1 | grep -q Portland; then
3224 _type=pgi
3225 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3226 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3227 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3228 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3229 _cflags_noopt="-O1"
3230 _flags_filter=pgi_flags
3231 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3232 _type=armasm
3233 _ident=$($_cc | head -n1)
3234 # 4509: "This form of conditional instruction is deprecated"
3235 _flags="-nologo -ignore 4509"
3236 _flags_filter=armasm_flags
3237 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3238 _type=msvc
3239 _ident=$($_cc 2>&1 | head -n1)
3240 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3241 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3242 _cflags_speed="-O2"
3243 _cflags_size="-O1"
3244 if $_cc -nologo- 2>&1 | grep -q Linker; then
3245 _ld_o='-out:$@'
3246 else
3247 _ld_o='-Fe$@'
3248 fi
3249 _cc_o='-Fo$@'
3250 _cc_e='-P -Fi$@'
3251 _flags_filter=msvc_flags
3252 _ld_lib='lib%.a'
3253 _ld_path='-libpath:'
3254 _flags='-nologo'
3255 elif $_cc 2>&1 | grep -q Intel; then
3256 _type=icl
3257 _ident=$($_cc 2>&1 | head -n1)
3258 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3259 # Not only is O3 broken on 13.x+ but it is slower on all previous
3260 # versions (tested) as well.
3261 _cflags_speed="-O2"
3262 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3263 if $_cc 2>&1 | grep -q Linker; then
3264 _ld_o='-out:$@'
3265 else
3266 _ld_o='-Fe$@'
3267 fi
3268 _cc_o='-Fo$@'
3269 _cc_e='-P'
3270 _flags_filter=icl_flags
3271 _ld_lib='lib%.a'
3272 _ld_path='-libpath:'
3273 # -Qdiag-error to make icl error when seeing certain unknown arguments
3274 _flags='-nologo -Qdiag-error:4044,10157'
3275 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3276 # with MSVC which enables it by default.
3277 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3278 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3279 # lld can emulate multiple different linkers; in ms link.exe mode,
3280 # the -? parameter gives the help output which contains an identifyable
3281 # string, while it gives an error in other modes.
3282 _type=lld-link
3283 # The link.exe mode doesn't have a switch for getting the version,
3284 # but we can force it back to gnu mode and get the version from there.
3285 _ident=$($_cc -flavor gnu --version)
3286 _ld_o='-out:$@'
3287 _flags_filter=msvc_flags
3288 _ld_lib='lib%.a'
3289 _ld_path='-libpath:'
3290 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3291 _type=cparser
3292 _ident=$($_cc --version | head -n1)
3293 _depflags='-MMD'
3294 _cflags_speed='-O4'
3295 _cflags_size='-O2'
3296 _flags_filter=cparser_flags
3297 fi
3298
3299 eval ${pfx}_type=\$_type
3300 eval ${pfx}_ident=\$_ident
3301 }
3302
3303 set_ccvars(){
3304 eval ${1}_C=\${_cc_c-\${${1}_C}}
3305 eval ${1}_E=\${_cc_e-\${${1}_E}}
3306 eval ${1}_O=\${_cc_o-\${${1}_O}}
3307
3308 if [ -n "$_depflags" ]; then
3309 eval ${1}_DEPFLAGS=\$_depflags
3310 else
3311 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3312 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3313 eval DEP${1}FLAGS=\$_flags
3314 fi
3315 }
3316
3317 probe_cc cc "$cc"
3318 cflags_filter=$_flags_filter
3319 cflags_speed=$_cflags_speed
3320 cflags_size=$_cflags_size
3321 cflags_noopt=$_cflags_noopt
3322 add_cflags $_flags $_cflags
3323 cc_ldflags=$_ldflags
3324 set_ccvars CC
3325
3326 probe_cc hostcc "$host_cc"
3327 host_cflags_filter=$_flags_filter
3328 add_host_cflags $_flags $_cflags
3329 set_ccvars HOSTCC
3330
3331 test -n "$cc_type" && enable $cc_type ||
3332 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3333
3334 : ${as_default:=$cc}
3335 : ${objcc_default:=$cc}
3336 : ${dep_cc_default:=$cc}
3337 : ${ld_default:=$cc}
3338 : ${host_ld_default:=$host_cc}
3339 set_default ar as objcc dep_cc ld host_ld
3340
3341 probe_cc as "$as"
3342 asflags_filter=$_flags_filter
3343 add_asflags $_flags $_cflags
3344 set_ccvars AS
3345
3346 probe_cc objcc "$objcc"
3347 objcflags_filter=$_flags_filter
3348 add_objcflags $_flags $_cflags
3349 set_ccvars OBJC
3350
3351 probe_cc ld "$ld"
3352 ldflags_filter=$_flags_filter
3353 add_ldflags $_flags $_ldflags
3354 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3355 LD_O=${_ld_o-$LD_O}
3356 LD_LIB=${_ld_lib-$LD_LIB}
3357 LD_PATH=${_ld_path-$LD_PATH}
3358
3359 probe_cc hostld "$host_ld"
3360 host_ldflags_filter=$_flags_filter
3361 add_host_ldflags $_flags $_ldflags
3362 HOSTLD_O=${_ld_o-$HOSTLD_O}
3363
3364 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3365 probe_cc depcc "$dep_cc"
3366 CCDEP=${_DEPCMD:-$DEPCMD}
3367 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3368 DEPCCFLAGS=$_flags
3369 fi
3370
3371 if $ar 2>&1 | grep -q Microsoft; then
3372 arflags="-nologo"
3373 ar_o='-out:$@'
3374 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3375 arflags="rq"
3376 ar_o='$@'
3377 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3378 arflags='-Xany -r -c'
3379 ar_o='$@'
3380 else
3381 arflags="rc"
3382 ar_o='$@'
3383 fi
3384
3385 add_cflags $extra_cflags
3386 add_objcflags $extra_objcflags
3387 add_asflags $extra_cflags
3388
3389 if test -n "$sysroot"; then
3390 case "$cc_type" in
3391 gcc|llvm_gcc|clang)
3392 add_cppflags --sysroot="$sysroot"
3393 add_ldflags --sysroot="$sysroot"
3394 ;;
3395 tms470)
3396 add_cppflags -I"$sysinclude"
3397 add_ldflags --sysroot="$sysroot"
3398 ;;
3399 esac
3400 fi
3401
3402 if test "$cpu" = host; then
3403 enabled cross_compile &&
3404 die "--cpu=host makes no sense when cross-compiling."
3405
3406 case "$cc_type" in
3407 gcc|llvm_gcc)
3408 check_native(){
3409 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3410 sed -n "/cc1.*$1=/{
3411 s/.*$1=\\([^ ]*\\).*/\\1/
3412 p
3413 q
3414 }" $TMPE
3415 }
3416 cpu=$(check_native -march || check_native -mcpu)
3417 ;;
3418 esac
3419
3420 test "${cpu:-host}" = host &&
3421 die "--cpu=host not supported with compiler $cc"
3422 fi
3423
3424 # Deal with common $arch aliases
3425 case "$arch" in
3426 aarch64|arm64)
3427 arch="aarch64"
3428 ;;
3429 arm*)
3430 arch="arm"
3431 ;;
3432 mips*|IP*)
3433 case "$arch" in
3434 *el)
3435 add_cppflags -EL
3436 add_ldflags -EL
3437 ;;
3438 *eb)
3439 add_cppflags -EB
3440 add_ldflags -EB
3441 ;;
3442 esac
3443 arch="mips"
3444 ;;
3445 parisc*|hppa*)
3446 arch="parisc"
3447 ;;
3448 "Power Macintosh"|ppc*|powerpc*)
3449 arch="ppc"
3450 ;;
3451 s390|s390x)
3452 arch="s390"
3453 ;;
3454 sh4|sh)
3455 arch="sh4"
3456 ;;
3457 sun4u|sparc*)
3458 arch="sparc"
3459 ;;
3460 tilegx|tile-gx)
3461 arch="tilegx"
3462 ;;
3463 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3464 arch="x86"
3465 ;;
3466 esac
3467
3468 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3469 enable $arch
3470
3471 # Add processor-specific flags
3472 if enabled aarch64; then
3473
3474 case $cpu in
3475 armv*)
3476 cpuflags="-march=$cpu"
3477 ;;
3478 *)
3479 cpuflags="-mcpu=$cpu"
3480 ;;
3481 esac
3482
3483 elif enabled alpha; then
3484
3485 cpuflags="-mcpu=$cpu"
3486
3487 elif enabled arm; then
3488
3489 check_arm_arch() {
3490 check_cpp_condition stddef.h \
3491 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3492 $cpuflags
3493 }
3494
3495 probe_arm_arch() {
3496 if check_arm_arch 4; then echo armv4
3497 elif check_arm_arch 4T; then echo armv4t
3498 elif check_arm_arch 5; then echo armv5
3499 elif check_arm_arch 5E; then echo armv5e
3500 elif check_arm_arch 5T; then echo armv5t
3501 elif check_arm_arch 5TE; then echo armv5te
3502 elif check_arm_arch 5TEJ; then echo armv5te
3503 elif check_arm_arch 6; then echo armv6
3504 elif check_arm_arch 6J; then echo armv6j
3505 elif check_arm_arch 6K; then echo armv6k
3506 elif check_arm_arch 6Z; then echo armv6z
3507 elif check_arm_arch 6ZK; then echo armv6zk
3508 elif check_arm_arch 6T2; then echo armv6t2
3509 elif check_arm_arch 7; then echo armv7
3510 elif check_arm_arch 7A 7_A; then echo armv7-a
3511 elif check_arm_arch 7S; then echo armv7-a
3512 elif check_arm_arch 7R 7_R; then echo armv7-r
3513 elif check_arm_arch 7M 7_M; then echo armv7-m
3514 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3515 elif check_arm_arch 8A 8_A; then echo armv8-a
3516 fi
3517 }
3518
3519 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3520
3521 case $cpu in
3522 armv*)
3523 cpuflags="-march=$cpu"
3524 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3525 ;;
3526 *)
3527 cpuflags="-mcpu=$cpu"
3528 case $cpu in
3529 cortex-a*) subarch=armv7a ;;
3530 cortex-r*) subarch=armv7r ;;
3531 cortex-m*) enable thumb; subarch=armv7m ;;
3532 arm11*) subarch=armv6 ;;
3533 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3534 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3535 *) subarch=$(probe_arm_arch) ;;
3536 esac
3537 ;;
3538 esac
3539
3540 case "$subarch" in
3541 armv5t*) enable fast_clz ;;
3542 armv[6-8]*) enable fast_clz fast_unaligned ;;
3543 esac
3544
3545 elif enabled avr32; then
3546
3547 case $cpu in
3548 ap7[02]0[0-2])
3549 subarch="avr32_ap"
3550 cpuflags="-mpart=$cpu"
3551 ;;
3552 ap)
3553 subarch="avr32_ap"
3554 cpuflags="-march=$cpu"
3555 ;;
3556 uc3[ab]*)
3557 subarch="avr32_uc"
3558 cpuflags="-mcpu=$cpu"
3559 ;;
3560 uc)
3561 subarch="avr32_uc"
3562 cpuflags="-march=$cpu"
3563 ;;
3564 esac
3565
3566 elif enabled bfin; then
3567
3568 cpuflags="-mcpu=$cpu"
3569
3570 elif enabled mips; then
3571
3572 cpuflags="-march=$cpu"
3573
3574 elif enabled ppc; then
3575
3576 disable ldbrx
3577
3578 case $(tolower $cpu) in
3579 601|ppc601|powerpc601)
3580 cpuflags="-mcpu=601"
3581 disable altivec
3582 ;;
3583 603*|ppc603*|powerpc603*)
3584 cpuflags="-mcpu=603"
3585 disable altivec
3586 ;;
3587 604*|ppc604*|powerpc604*)
3588 cpuflags="-mcpu=604"
3589 disable altivec
3590 ;;
3591 g3|75*|ppc75*|powerpc75*)
3592 cpuflags="-mcpu=750"
3593 disable altivec
3594 ;;
3595 g4|745*|ppc745*|powerpc745*)
3596 cpuflags="-mcpu=7450"
3597 disable vsx
3598 ;;
3599 74*|ppc74*|powerpc74*)
3600 cpuflags="-mcpu=7400"
3601 disable vsx
3602 ;;
3603 g5|970|ppc970|powerpc970)
3604 cpuflags="-mcpu=970"
3605 disable vsx
3606 ;;
3607 power[3-6]*)
3608 cpuflags="-mcpu=$cpu"
3609 disable vsx
3610 ;;
3611 power[7-8]*)
3612 cpuflags="-mcpu=$cpu"
3613 enable ldbrx
3614 ;;
3615 cell)
3616 cpuflags="-mcpu=cell"
3617 enable ldbrx
3618 disable vsx
3619 ;;
3620 e500mc)
3621 cpuflags="-mcpu=e500mc"
3622 disable altivec
3623 ;;
3624 e500v2)
3625 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3626 disable altivec
3627 disable dcbzl
3628 ;;
3629 e500)
3630 cpuflags="-mcpu=8540 -mhard-float"
3631 disable altivec
3632 disable dcbzl
3633 ;;
3634 esac
3635
3636 elif enabled sparc; then
3637
3638 case $cpu in
3639 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3640 cpuflags="-mcpu=$cpu"
3641 ;;
3642 ultrasparc*|niagara[234])
3643 cpuflags="-mcpu=$cpu"
3644 ;;
3645 esac
3646
3647 elif enabled x86; then
3648
3649 case $cpu in
3650 i[345]86|pentium)
3651 cpuflags="-march=$cpu"
3652 disable i686
3653 disable mmx
3654 ;;
3655 # targets that do NOT support nopl and conditional mov (cmov)
3656 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3657 cpuflags="-march=$cpu"
3658 disable i686
3659 ;;
3660 # targets that do support nopl and conditional mov (cmov)
3661 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3662 cpuflags="-march=$cpu"
3663 enable i686
3664 enable fast_cmov
3665 ;;
3666 # targets that do support conditional mov but on which it's slow
3667 pentium4|pentium4m|prescott|nocona)
3668 cpuflags="-march=$cpu"
3669 enable i686
3670 disable fast_cmov
3671 ;;
3672 esac
3673
3674 fi
3675
3676 if [ "$cpu" != generic ]; then
3677 add_cflags $cpuflags
3678 add_asflags $cpuflags
3679 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3680 fi
3681
3682 # compiler sanity check
3683 check_exec <<EOF
3684 int main(void){ return 0; }
3685 EOF
3686 if test "$?" != 0; then
3687 echo "$cc is unable to create an executable file."
3688 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3689 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3690 echo "Only do this if you know what cross compiling means."
3691 fi
3692 die "C compiler test failed."
3693 fi
3694
3695 add_cppflags -D_ISOC99_SOURCE
3696 check_cflags -std=c99
3697 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3698 #include <stdlib.h>
3699 EOF
3700 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3701 #include <stdlib.h>
3702 EOF
3703
3704 add_host_cppflags -D_ISOC99_SOURCE
3705 check_host_cflags -std=c99
3706 check_host_cflags -Wall
3707 check_host_cflags -O3
3708
3709 check_64bit(){
3710 arch32=$1
3711 arch64=$2
3712 expr=$3
3713 check_code cc "" "int test[2*($expr) - 1]" &&
3714 subarch=$arch64 || subarch=$arch32
3715 }
3716
3717 case "$arch" in
3718 aarch64|alpha|ia64)
3719 spic=$shared
3720 ;;
3721 mips)
3722 check_64bit mips mips64 '_MIPS_SIM > 1'
3723 spic=$shared
3724 ;;
3725 parisc)
3726 check_64bit parisc parisc64 'sizeof(void *) > 4'
3727 spic=$shared
3728 ;;
3729 ppc)
3730 check_64bit ppc ppc64 'sizeof(void *) > 4'
3731 spic=$shared
3732 ;;
3733 s390)
3734 check_64bit s390 s390x 'sizeof(void *) > 4'
3735 spic=$shared
3736 ;;
3737 sparc)
3738 check_64bit sparc sparc64 'sizeof(void *) > 4'
3739 spic=$shared
3740 ;;
3741 x86)
3742 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3743 if test "$subarch" = "x86_64"; then
3744 spic=$shared
3745 fi
3746 ;;
3747 esac
3748
3749 enable $subarch
3750 enabled spic && enable_weak pic
3751
3752 # OS specific
3753 case $target_os in
3754 aix)
3755 SHFLAGS=-shared
3756 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3757 enabled shared && add_ldflags -Wl,-brtl
3758 ;;
3759 android)
3760 disable symver
3761 enable section_data_rel_ro
3762 SLIB_INSTALL_NAME='$(SLIBNAME)'
3763 SLIB_INSTALL_LINKS=
3764 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3765 ;;
3766 haiku)
3767 prefix_default="/boot/common"
3768 network_extralibs="-lnetwork"
3769 host_libs=
3770 ;;
3771 sunos)
3772 SHFLAGS='-shared -Wl,-h,$$(@F)'
3773 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3774 network_extralibs="-lsocket -lnsl"
3775 # When using suncc to build, the Solaris linker will mark
3776 # an executable with each instruction set encountered by
3777 # the Solaris assembler. As our libraries contain their own
3778 # guards for processor-specific code, instead suppress
3779 # generation of the HWCAPS ELF section on Solaris x86 only.
3780 enabled_all suncc x86 &&
3781 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3782 add_ldflags -Wl,-M,mapfile
3783 nm_default='nm -P -g'
3784 version_script='-M'
3785 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3786 ;;
3787 netbsd)
3788 disable symver
3789 oss_indev_extralibs="-lossaudio"
3790 oss_outdev_extralibs="-lossaudio"
3791 ;;
3792 openbsd|bitrig)
3793 disable symver
3794 SHFLAGS='-shared'
3795 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3796 SLIB_INSTALL_LINKS=
3797 oss_indev_extralibs="-lossaudio"
3798 oss_outdev_extralibs="-lossaudio"
3799 ;;
3800 dragonfly)
3801 disable symver
3802 ;;
3803 freebsd)
3804 ;;
3805 bsd/os)
3806 add_extralibs -lpoll -lgnugetopt
3807 ;;
3808 darwin)
3809 enabled ppc && add_asflags -force_cpusubtype_ALL
3810 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3811 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3812 add_ldflags -Wl,-dynamic,-search_paths_first
3813 SLIBSUF=".dylib"
3814 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3815 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3816 objformat="macho"
3817 enabled x86_64 && objformat="macho64"
3818 enabled_any pic shared ||
3819 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3820 check_header dispatch/dispatch.h &&
3821 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3822 ;;
3823 msys*)
3824 die "Native MSYS builds are discouraged, please use the MINGW environment."
3825 ;;
3826 mingw32*|mingw64*)
3827 if test $target_os = "mingw32ce"; then
3828 disable network
3829 else
3830 target_os=mingw32
3831 fi
3832 LIBTARGET=i386
3833 if enabled x86_64; then
3834 LIBTARGET="i386:x86-64"
3835 elif enabled arm; then
3836 LIBTARGET=arm-wince
3837 fi
3838 check_ldflags -Wl,--nxcompat
3839 check_ldflags -Wl,--dynamicbase
3840 shlibdir_default="$bindir_default"
3841 SLIBPREF=""
3842 SLIBSUF=".dll"
3843 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3844 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3845 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3846 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3847 SLIB_INSTALL_LINKS=
3848 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3849 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3850 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3851 objformat="win32"
3852 dlltool="${cross_prefix}dlltool"
3853 ranlib=:
3854 enable dos_paths
3855 ;;
3856 win32|win64)
3857 disable symver
3858 if enabled shared; then
3859 # Link to the import library instead of the normal static library
3860 # for shared libs.
3861 LD_LIB='%.lib'
3862 # Cannot build both shared and static libs with MSVC or icl.
3863 disable static
3864 fi
3865 shlibdir_default="$bindir_default"
3866 SLIBPREF=""
3867 SLIBSUF=".dll"
3868 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3869 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3870 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3871 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3872 SLIB_INSTALL_LINKS=
3873 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3874 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3875 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3876 objformat="win32"
3877 ranlib=:
3878 enable dos_paths
3879 ;;
3880 cygwin*)
3881 target_os=cygwin
3882 shlibdir_default="$bindir_default"
3883 SLIBPREF="cyg"
3884 SLIBSUF=".dll"
3885 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3886 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3887 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3888 SLIB_INSTALL_LINKS=
3889 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3890 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3891 objformat="win32"
3892 enable dos_paths
3893 ;;
3894 *-dos|freedos|opendos)
3895 network_extralibs="-lsocket"
3896 objformat="coff"
3897 enable dos_paths
3898 add_cppflags -U__STRICT_ANSI__
3899 ;;
3900 linux)
3901 enable dv1394
3902 enable section_data_rel_ro
3903 ;;
3904 irix*)
3905 target_os=irix
3906 ranlib="echo ignoring ranlib"
3907 ;;
3908 os/2*)
3909 ln_s="cp -f"
3910 objformat="aout"
3911 add_cppflags -D_GNU_SOURCE
3912 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3913 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3914 LIBSUF="_s.a"
3915 SLIBPREF=""
3916 SLIBSUF=".dll"
3917 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3918 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3919 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3920 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3921 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3922 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3923 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3924 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3925 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3926 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3927 enable dos_paths
3928 ;;
3929 gnu/kfreebsd)
3930 add_cppflags -D_BSD_SOURCE
3931 ;;
3932 gnu)
3933 ;;
3934 qnx)
3935 add_cppflags -D_QNX_SOURCE
3936 network_extralibs="-lsocket"
3937 ;;
3938 symbian)
3939 SLIBSUF=".dll"
3940 enable dos_paths
3941 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3942 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3943 add_ldflags -Wl,--target1-abs,--no-undefined \
3944 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3945 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3946 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3947 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3948 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3949 ;;
3950 osf1)
3951 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3952 ;;
3953 minix)
3954 ;;
3955 plan9)
3956 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3957 -D_REENTRANT_SOURCE \
3958 -D_RESEARCH_SOURCE \
3959 -DFD_SETSIZE=96 \
3960 -DHAVE_SOCK_OPTS
3961 add_compat strtod.o strtod=avpriv_strtod
3962 network_extralibs='-lbsd'
3963 exeobjs=compat/plan9/main.o
3964 cp_f='cp'
3965 ;;
3966 none)
3967 ;;
3968 *)
3969 die "Unknown OS '$target_os'."
3970 ;;
3971 esac
3972
3973 # determine libc flavour
3974
3975 probe_libc(){
3976 pfx=$1
3977 pfx_no_=${pfx%_}
3978 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3979 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3980 eval ${pfx}libc_type=uclibc
3981 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3982 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3983 eval ${pfx}libc_type=glibc
3984 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3985 # MinGW headers can be installed on Cygwin, so check for newlib first.
3986 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3987 eval ${pfx}libc_type=newlib
3988 add_${pfx}cppflags -U__STRICT_ANSI__
3989 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3990 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3991 eval ${pfx}libc_type=mingw64
3992 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3993 eval test \$${pfx_no_}cc_type = "gcc" &&
3994 add_${pfx}cppflags -D__printf__=__gnu_printf__
3995 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3996 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3997 eval ${pfx}libc_type=mingw32
3998 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3999 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4000 die "ERROR: MinGW32 runtime version must be >= 3.15."
4001 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4002 eval test \$${pfx_no_}cc_type = "gcc" &&
4003 add_${pfx}cppflags -D__printf__=__gnu_printf__
4004 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4005 eval ${pfx}libc_type=msvcrt
4006 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4007 if [ "$pfx" = host_ ]; then
4008 add_host_cppflags -Dsnprintf=_snprintf
4009 else
4010 add_compat strtod.o strtod=avpriv_strtod
4011 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4012 _snprintf=avpriv_snprintf \
4013 vsnprintf=avpriv_vsnprintf
4014 fi
4015 fi
4016 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4017 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4018 # 0x601 by default unless something else is set by the user.
4019 # This can easily lead to us detecting functions only present
4020 # in such new versions and producing binaries requiring windows 7.0.
4021 # Therefore explicitly set the default to XP unless the user has
4022 # set something else on the command line.
4023 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4024 # family. For these cases, configure is free to use any functions
4025 # found in the SDK headers by default. (Alternatively, we could force
4026 # _WIN32_WINNT to 0x0602 in that case.)
4027 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4028 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4029 #ifdef WINAPI_FAMILY
4030 #include <winapifamily.h>
4031 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4032 #error not desktop
4033 #endif
4034 #endif
4035 EOF
4036 if [ "$pfx" = "" ]; then
4037 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4038 fi
4039 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4040 eval ${pfx}libc_type=klibc
4041 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4042 eval ${pfx}libc_type=bionic
4043 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4044 eval ${pfx}libc_type=solaris
4045 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4046 else
4047 eval ${pfx}libc_type=default
4048 add_${pfx}cppflags -D_DEFAULT_SOURCE
4049 fi
4050 }
4051
4052 probe_libc
4053 test -n "$libc_type" && enable libc_$libc_type
4054 probe_libc host_
4055 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4056
4057 case $libc_type in
4058 bionic)
4059 add_compat strtod.o strtod=avpriv_strtod
4060 ;;
4061 esac
4062
4063 # hacks for compiler/libc/os combinations
4064
4065 if enabled_all tms470 libc_glibc; then
4066 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4067 add_cppflags -D__USER_LABEL_PREFIX__=
4068 add_cppflags -D__builtin_memset=memset
4069 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4070 add_cflags -pds=48 # incompatible redefinition of macro
4071 fi
4072
4073 if enabled_all ccc libc_glibc; then
4074 add_ldflags -Wl,-z,now # calls to libots crash without this
4075 fi
4076
4077 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4078 add_cppflags '-I\$(SRC_PATH)/compat/float'
4079
4080 esc(){
4081 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4082 }
4083
4084 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4085
4086 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4087
4088 set_default $PATHS_LIST
4089 set_default nm
4090
4091 # we need to build at least one lib type
4092 if ! enabled_any static shared; then
4093 cat <<EOF
4094 At least one library type must be built.
4095 Specify --enable-static to build the static libraries or --enable-shared to
4096 build the shared libraries as well. To only build the shared libraries specify
4097 --disable-static in addition to --enable-shared.
4098 EOF
4099 exit 1
4100 fi
4101
4102 die_license_disabled() {
4103 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4104 }
4105
4106 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4107 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4108 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4109
4110 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4111
4112 disabled optimizations || check_cflags -fomit-frame-pointer
4113
4114 enable_weak_pic() {
4115 disabled pic && return
4116 enable pic
4117 add_cppflags -DPIC
4118 case "$target_os" in
4119 mingw*|cygwin*)
4120 ;;
4121 *)
4122 add_cflags -fPIC
4123 ;;
4124 esac
4125 add_asflags -fPIC
4126 }
4127
4128 enabled pic && enable_weak_pic
4129
4130 check_cc <<EOF || die "Symbol mangling check failed."
4131 int ff_extern;
4132 EOF
4133 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4134 extern_prefix=${sym%%ff_extern*}
4135
4136 check_cc <<EOF && enable_weak inline_asm
4137 void foo(void) { __asm__ volatile ("" ::); }
4138 EOF
4139
4140 _restrict=
4141 for restrict_keyword in restrict __restrict__ __restrict; do
4142 check_cc <<EOF && _restrict=$restrict_keyword && break
4143 void foo(char * $restrict_keyword p);
4144 EOF
4145 done
4146
4147 check_cc <<EOF && enable pragma_deprecated
4148 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4149 EOF
4150
4151 check_cc <<EOF && enable attribute_packed
4152 struct { int x; } __attribute__((packed)) x;
4153 EOF
4154
4155 check_cc <<EOF && enable attribute_may_alias
4156 union { int x; } __attribute__((may_alias)) x;
4157 EOF
4158
4159 check_cc <<EOF || die "endian test failed"
4160 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4161 EOF
4162 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4163
4164 check_gas() {
4165 log "check_gas using '$as' as AS"
4166 # :vararg is used on aarch64, arm and ppc altivec
4167 check_as <<EOF || return 1
4168 .macro m n, y:vararg=0
4169 \n: .int \y
4170 .endm
4171 m x
4172 EOF
4173 # .altmacro is only used in arm asm
4174 ! enabled arm || check_as <<EOF || return 1
4175 .altmacro
4176 EOF
4177 enable gnu_as
4178 return 0
4179 }
4180
4181 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4182 nogas=:
4183 enabled_any arm aarch64 && nogas=die
4184 enabled_all ppc altivec && nogas=warn
4185 as_noop=-v
4186
4187 case $as_type in
4188 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4189 gcc) gaspp_as_type=gas ;;
4190 *) gaspp_as_type=$as_type ;;
4191 esac
4192
4193 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4194
4195 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4196 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4197
4198 if ! check_gas ; then
4199 as=${gas:=$as}
4200 check_gas || \
4201 $nogas "GNU assembler not found, install/update gas-preprocessor"
4202 fi
4203
4204 check_as <<EOF && enable as_func
4205 .func test
4206 .endfunc
4207 EOF
4208 fi
4209
4210 check_inline_asm inline_asm_labels '"1:\n"'
4211
4212 if enabled aarch64; then
4213 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4214 # internal assembler in clang 3.3 does not support this instruction
4215 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4216 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4217
4218 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4219
4220 elif enabled alpha; then
4221
4222 check_cflags -mieee
4223
4224 elif enabled arm; then
4225
4226 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4227 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4228 enabled thumb && check_cflags -mthumb || check_cflags -marm
4229
4230 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4231 enable vfp_args
4232 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4233 enable vfp_args
4234 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4235 case "${cross_prefix:-$cc}" in
4236 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4237 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4238 __asm__ (".eabi_attribute 28, 1");
4239 int main(void) { return 0; }
4240 EOF
4241 esac
4242 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4243 fi
4244
4245 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4246 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4247 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4248 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4249 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4250 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4251
4252 [ $target_os = linux ] || [ $target_os = android ] ||
4253 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4254 $ARCH_EXT_LIST_ARM
4255
4256 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4257
4258 check_as <<EOF && enable as_dn_directive
4259 ra .dn d0.i16
4260 .unreq ra
4261 EOF
4262 check_as <<EOF && enable as_fpu_directive
4263 .fpu neon
4264 EOF
4265
4266 # llvm's integrated assembler supports .object_arch from llvm 3.5
4267 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4268 .object_arch armv4
4269 EOF
4270
4271 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4272
4273 elif enabled mips; then
4274
4275 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4276
4277 # make sure that only an instruction set is enabled
4278 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4279
4280 if enabled mips64; then
4281 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4282 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4283 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4284 else
4285 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4286 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4287 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4288 fi
4289
4290 elif enabled parisc; then
4291
4292 if enabled gcc; then
4293 case $($cc -dumpversion) in
4294 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4295 esac
4296 fi
4297
4298 elif enabled ppc; then
4299
4300 enable local_aligned_8 local_aligned_16 local_aligned_32
4301
4302 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4303 check_inline_asm ibm_asm '"add 0, 0, 0"'
4304 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4305 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4306
4307 # AltiVec flags: The FSF version of GCC differs from the Apple version
4308 if enabled altivec; then
4309 check_cflags -maltivec -mabi=altivec &&
4310 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4311 check_cflags -faltivec
4312
4313 # check if our compiler supports Motorola AltiVec C API
4314 check_cc <<EOF || disable altivec
4315 $inc_altivec_h
4316 int main(void) {
4317 vector signed int v1 = (vector signed int) { 0 };
4318 vector signed int v2 = (vector signed int) { 1 };
4319 v1 = vec_add(v1, v2);
4320 return 0;
4321 }
4322 EOF
4323
4324 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4325 fi
4326
4327 if enabled vsx; then
4328 check_cflags -mvsx &&
4329 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4330 fi
4331
4332 if enabled power8; then
4333 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4334 fi
4335
4336 elif enabled x86; then
4337
4338 check_builtin rdtsc intrin.h "__rdtsc()"
4339 check_builtin mm_empty mmintrin.h "_mm_empty()"
4340
4341 enable local_aligned_8 local_aligned_16 local_aligned_32
4342
4343 # check whether EBP is available on x86
4344 # As 'i' is stored on the stack, this program will crash
4345 # if the base pointer is used to access it because the
4346 # base pointer is cleared in the inline assembly code.
4347 check_exec_crash <<EOF && enable ebp_available
4348 volatile int i=0;
4349 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4350 return i;
4351 EOF
4352
4353 # check whether EBX is available on x86
4354 check_inline_asm ebx_available '""::"b"(0)' &&
4355 check_inline_asm ebx_available '"":::"%ebx"'
4356
4357 # check whether xmm clobbers are supported
4358 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4359
4360 # check whether binutils is new enough to compile SSSE3/MMXEXT
4361 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4362 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4363
4364 if ! disabled_any asm mmx yasm; then
4365 if check_cmd $yasmexe --version; then
4366 enabled x86_64 && yasm_extra="-m amd64"
4367 yasm_debug="-g dwarf2"
4368 elif check_cmd nasm -v; then
4369 yasmexe=nasm
4370 yasm_debug="-g -F dwarf"
4371 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4372 fi
4373
4374 YASMFLAGS="-f $objformat $yasm_extra"
4375 enabled pic && append YASMFLAGS "-DPIC"
4376 test -n "$extern_prefix" && append YASMFLAGS