High Definition Compatible Digital (HDCD) decoder filter, using libhdcd
[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-libhdcd HDCD decoding filter
201 --enable-libilbc ILBC audio encoding/decoding
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
236 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
237 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
238 --enable-libnpp Nvidia CUDA processing
239 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
240 --enable-nvenc Nvidia video encoding
241 --enable-omx OpenMAX IL
242 --enable-omx-rpi OpenMAX IL for Raspberry Pi
243 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
244 --enable-vda Apple Video Decode Acceleration [auto]
245 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
246
247 Toolchain options:
248 --arch=ARCH select architecture [$arch]
249 --cpu=CPU select the minimum required CPU (affects
250 instruction selection, may crash on older CPUs)
251 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
252 --enable-cross-compile assume a cross-compiler is used
253 --sysroot=PATH root of cross-build tree
254 --sysinclude=PATH location of cross-build system headers
255 --target-os=OS compiler targets OS [$target_os]
256 --target-exec=CMD command to run executables on target
257 --target-path=DIR path to view of build directory on target
258 --target-samples=DIR path to samples directory on target
259 --toolchain=NAME set tool defaults according to NAME
260 --nm=NM use nm tool
261 --ar=AR use archive tool AR [$ar_default]
262 --as=AS use assembler AS [$as_default]
263 --cc=CC use C compiler CC [$cc_default]
264 --objcc=OCC use ObjC compiler OCC [$cc_default]
265 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
266 --ld=LD use linker LD
267 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
268 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
269 --host-cc=HOSTCC use host C compiler HOSTCC
270 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
271 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
272 --host-ld=HOSTLD use host linker HOSTLD
273 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
274 --host-libs=HLIBS use libs HLIBS when linking for host
275 --host-os=OS compiler host OS [$target_os]
276 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
277 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
278 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
279 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
280 --extra-libs=ELIBS add ELIBS [$ELIBS]
281 --extra-version=STRING version string suffix []
282 --optflags=OPTFLAGS override optimization-related compiler flags
283 --build-suffix=SUFFIX library name suffix []
284 --enable-pic build position-independent code
285 --enable-thumb compile for Thumb instruction set
286 --enable-lto use link-time optimization
287 --env="ENV=override" override the environment variables
288
289 Advanced options (experts only):
290 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
291 --custom-allocator=NAME use a supported custom allocator
292 --disable-symver disable symbol versioning
293 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
294 --disable-safe-bitstream-reader
295 disable buffer boundary checking in bitreaders
296 (faster, but may crash)
297 --enable-memalign-hack emulate memalign, interferes with memory debuggers
298 --enable-sram allow use of on-chip SRAM
299
300 Optimization options (experts only):
301 --disable-asm disable all assembly optimizations
302 --disable-altivec disable AltiVec optimizations
303 --disable-vsx disable VSX optimizations
304 --disable-power8 disable POWER8 optimizations
305 --disable-amd3dnow disable 3DNow! optimizations
306 --disable-amd3dnowext disable 3DNow! extended optimizations
307 --disable-mmx disable MMX optimizations
308 --disable-mmxext disable MMXEXT optimizations
309 --disable-sse disable SSE optimizations
310 --disable-sse2 disable SSE2 optimizations
311 --disable-sse3 disable SSE3 optimizations
312 --disable-ssse3 disable SSSE3 optimizations
313 --disable-sse4 disable SSE4 optimizations
314 --disable-sse42 disable SSE4.2 optimizations
315 --disable-avx disable AVX optimizations
316 --disable-xop disable XOP optimizations
317 --disable-fma3 disable FMA3 optimizations
318 --disable-fma4 disable FMA4 optimizations
319 --disable-avx2 disable AVX2 optimizations
320 --disable-armv5te disable armv5te optimizations
321 --disable-armv6 disable armv6 optimizations
322 --disable-armv6t2 disable armv6t2 optimizations
323 --disable-vfp disable VFP optimizations
324 --disable-neon disable NEON optimizations
325 --disable-inline-asm disable use of inline assembly
326 --disable-yasm disable use of nasm/yasm assembly
327
328 Developer options (useful when working on Libav itself):
329 --disable-debug disable debugging symbols
330 --enable-debug=LEVEL set the debug level [$debuglevel]
331 --disable-optimizations disable compiler optimizations
332 --enable-extra-warnings enable more compiler warnings
333 --samples=PATH location of test samples for FATE, if not set use
334 \$LIBAV_SAMPLES at make invocation time.
335 --enable-neon-clobber-test check NEON registers for clobbering (should be
336 used only for debugging purposes)
337 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
338 should be used only for debugging purposes)
339 --enable-random randomly enable/disable components
340 --disable-random
341 --enable-random=LIST randomly enable/disable specific components or
342 --disable-random=LIST component groups. LIST is a comma-separated list
343 of NAME[:PROB] entries where NAME is a component
344 (group) and PROB the probability associated with
345 NAME (default 0.5).
346 --random-seed=VALUE seed value for --enable/disable-random
347 --disable-valgrind-backtrace do not print a backtrace under Valgrind
348 (only applies to --disable-optimizations builds)
349
350 NOTE: Object files are built at the place where configure is launched.
351 EOF
352 exit 0
353 }
354
355 quotes='""'
356
357 log(){
358 echo "$@" >> $logfile
359 }
360
361 log_file(){
362 log BEGIN $1
363 i=1
364 while read line; do
365 printf '%5s %s\n' "${i}" "${line}"
366 i=$(($i+1))
367 done < $1 >> $logfile
368 log END $1
369 }
370
371 echolog(){
372 log "$@"
373 echo "$@"
374 }
375
376 warn(){
377 log "WARNING: $*"
378 WARNINGS="${WARNINGS}WARNING: $*\n"
379 }
380
381 die(){
382 echolog "$@"
383 cat <<EOF
384
385 If you think configure made a mistake, make sure you are using the latest
386 version from Git. If the latest version fails, report the problem to the
387 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
388 EOF
389 if disabled logging; then
390 cat <<EOF
391 Rerun configure with logging enabled (do not use --disable-logging), and
392 include the log this produces with your report.
393 EOF
394 else
395 cat <<EOF
396 Include the log file "$logfile" produced by configure as this will help
397 solving the problem.
398 EOF
399 fi
400 exit 1
401 }
402
403 # Avoid locale weirdness, besides we really just want to translate ASCII.
404 toupper(){
405 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
406 }
407
408 tolower(){
409 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
410 }
411
412 c_escape(){
413 echo "$*" | sed 's/["\\]/\\\0/g'
414 }
415
416 sh_quote(){
417 v=$(echo "$1" | sed "s/'/'\\\\''/g")
418 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
419 echo "$v"
420 }
421
422 cleanws(){
423 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
424 }
425
426 filter(){
427 pat=$1
428 shift
429 for v; do
430 eval "case $v in $pat) echo $v ;; esac"
431 done
432 }
433
434 filter_out(){
435 pat=$1
436 shift
437 for v; do
438 eval "case $v in $pat) ;; *) echo $v ;; esac"
439 done
440 }
441
442 map(){
443 m=$1
444 shift
445 for v; do eval $m; done
446 }
447
448 add_suffix(){
449 suffix=$1
450 shift
451 for v; do echo ${v}${suffix}; done
452 }
453
454 set_all(){
455 value=$1
456 shift
457 for var in $*; do
458 eval $var=$value
459 done
460 }
461
462 set_weak(){
463 value=$1
464 shift
465 for var; do
466 eval : \${$var:=$value}
467 done
468 }
469
470 sanitize_var_name(){
471 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
472 }
473
474 set_safe(){
475 var=$1
476 shift
477 eval $(sanitize_var_name "$var")='$*'
478 }
479
480 get_safe(){
481 eval echo \$$(sanitize_var_name "$1")
482 }
483
484 pushvar(){
485 for pvar in $*; do
486 eval level=\${${pvar}_level:=0}
487 eval ${pvar}_${level}="\$$pvar"
488 eval ${pvar}_level=$(($level+1))
489 done
490 }
491
492 popvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:-0}
495 test $level = 0 && continue
496 eval level=$(($level-1))
497 eval $pvar="\${${pvar}_${level}}"
498 eval ${pvar}_level=$level
499 eval unset ${pvar}_${level}
500 done
501 }
502
503 enable(){
504 set_all yes $*
505 }
506
507 disable(){
508 set_all no $*
509 }
510
511 enable_weak(){
512 set_weak yes $*
513 }
514
515 disable_weak(){
516 set_weak no $*
517 }
518
519 enable_safe(){
520 for var; do
521 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
522 done
523 }
524
525 disable_safe(){
526 for var; do
527 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 do_enable_deep(){
532 for var; do
533 enabled $var && continue
534 eval sel="\$${var}_select"
535 eval sgs="\$${var}_suggest"
536 pushvar var sgs
537 enable_deep $sel
538 popvar sgs
539 enable_deep_weak $sgs
540 popvar var
541 done
542 }
543
544 enable_deep(){
545 do_enable_deep $*
546 enable $*
547 }
548
549 enable_deep_weak(){
550 for var; do
551 disabled $var && continue
552 pushvar var
553 do_enable_deep $var
554 popvar var
555 enable_weak $var
556 done
557 }
558
559 enabled(){
560 test "${1#!}" = "$1" && op== || op=!=
561 eval test "x\$${1#!}" $op "xyes"
562 }
563
564 disabled(){
565 test "${1#!}" = "$1" && op== || op=!=
566 eval test "x\$${1#!}" $op "xno"
567 }
568
569 enabled_all(){
570 for opt; do
571 enabled $opt || return 1
572 done
573 }
574
575 disabled_all(){
576 for opt; do
577 disabled $opt || return 1
578 done
579 }
580
581 enabled_any(){
582 for opt; do
583 enabled $opt && return 0
584 done
585 }
586
587 disabled_any(){
588 for opt; do
589 disabled $opt && return 0
590 done
591 return 1
592 }
593
594 set_default(){
595 for opt; do
596 eval : \${$opt:=\$${opt}_default}
597 done
598 }
599
600 is_in(){
601 value=$1
602 shift
603 for var in $*; do
604 [ $var = $value ] && return 0
605 done
606 return 1
607 }
608
609 do_check_deps(){
610 for cfg; do
611 cfg="${cfg#!}"
612 enabled ${cfg}_checking && die "Circular dependency for $cfg."
613 disabled ${cfg}_checking && continue
614 enable ${cfg}_checking
615 append allopts $cfg
616
617 eval dep_all="\$${cfg}_deps"
618 eval dep_any="\$${cfg}_deps_any"
619 eval dep_sel="\$${cfg}_select"
620 eval dep_sgs="\$${cfg}_suggest"
621 eval dep_ifa="\$${cfg}_if"
622 eval dep_ifn="\$${cfg}_if_any"
623
624 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
625 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
626 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627
628 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
629 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
630 enabled_all $dep_all || disable $cfg
631 enabled_any $dep_any || disable $cfg
632 disabled_any $dep_sel && disable $cfg
633
634 if enabled $cfg; then
635 enable_deep $dep_sel
636 enable_deep_weak $dep_sgs
637 fi
638
639 disable ${cfg}_checking
640 done
641 }
642
643 check_deps(){
644 unset allopts
645
646 do_check_deps "$@"
647
648 for cfg in $allopts; do
649 enabled $cfg || continue
650 eval dep_extralibs="\$${cfg}_extralibs"
651 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
652 done
653 }
654
655 print_config(){
656 pfx=$1
657 files=$2
658 shift 2
659 map 'eval echo "$v \${$v:-no}"' "$@" |
660 awk "BEGIN { split(\"$files\", files) }
661 {
662 c = \"$pfx\" toupper(\$1);
663 v = \$2;
664 sub(/yes/, 1, v);
665 sub(/no/, 0, v);
666 for (f in files) {
667 file = files[f];
668 if (file ~ /\\.h\$/) {
669 printf(\"#define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.asm\$/) {
671 printf(\"%%define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.mak\$/) {
673 n = -v ? \"\" : \"!\";
674 printf(\"%s%s=yes\\n\", n, c) >>file;
675 }
676 }
677 }"
678 }
679
680 print_enabled(){
681 suf=$1
682 shift
683 for v; do
684 enabled $v && printf "%s\n" ${v%$suf}
685 done
686 }
687
688 append(){
689 var=$1
690 shift
691 eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695 var=$1
696 shift
697 eval "$var=\"$* \$$var\""
698 }
699
700 unique(){
701 var=$1
702 uniq_list=""
703 for tok in $(eval echo \$$var); do
704 uniq_list="$(filter_out $tok $uniq_list) $tok"
705 done
706 eval "$var=\"${uniq_list}\""
707 }
708
709 add_cppflags(){
710 append CPPFLAGS "$@"
711 }
712
713 add_cflags(){
714 append CFLAGS $($cflags_filter "$@")
715 }
716
717 add_asflags(){
718 append ASFLAGS $($asflags_filter "$@")
719 }
720
721 add_objcflags(){
722 append OBJCFLAGS $($objcflags_filter "$@")
723 }
724
725 add_ldflags(){
726 append LDFLAGS $($ldflags_filter "$@")
727 }
728
729 add_ldexeflags(){
730 append LDEXEFLAGS $($ldflags_filter "$@")
731 }
732
733 add_stripflags(){
734 append STRIPFLAGS "$@"
735 }
736
737 add_extralibs(){
738 prepend extralibs $($ldflags_filter "$@")
739 }
740
741 add_host_cppflags(){
742 append host_cppflags "$@"
743 }
744
745 add_host_cflags(){
746 append host_cflags $($host_cflags_filter "$@")
747 }
748
749 add_host_ldflags(){
750 append host_ldflags $($host_ldflags_filter "$@")
751 }
752
753 add_compat(){
754 append compat_objs $1
755 shift
756 map 'add_cppflags -D$v' "$@"
757 }
758
759 check_cmd(){
760 log "$@"
761 "$@" >> $logfile 2>&1
762 }
763
764 cc_o(){
765 eval printf '%s\\n' $CC_O
766 }
767
768 cc_e(){
769 eval printf '%s\\n' $CC_E
770 }
771
772 check_cc(){
773 log check_cc "$@"
774 cat > $TMPC
775 log_file $TMPC
776 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
777 }
778
779 check_objcc(){
780 log check_objcc "$@"
781 cat > $TMPC
782 log_file $TMPC
783 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
784 }
785
786 check_cpp(){
787 log check_cpp "$@"
788 cat > $TMPC
789 log_file $TMPC
790 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
791 }
792
793 as_o(){
794 eval printf '%s\\n' $AS_O
795 }
796
797 check_as(){
798 log check_as "$@"
799 cat > $TMPS
800 log_file $TMPS
801 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
802 }
803
804 check_inline_asm(){
805 log check_inline_asm "$@"
806 name="$1"
807 code="$2"
808 shift 2
809 disable $name
810 check_cc "$@" <<EOF && enable $name
811 void foo(void){ __asm__ volatile($code); }
812 EOF
813 }
814
815 check_insn(){
816 log check_insn "$@"
817 check_inline_asm ${1}_inline "\"$2\""
818 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
819 }
820
821 check_yasm(){
822 log check_yasm "$@"
823 echo "$1" > $TMPS
824 log_file $TMPS
825 shift 1
826 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
827 }
828
829 ld_o(){
830 eval printf '%s\\n' $LD_O
831 }
832
833 check_ld(){
834 log check_ld "$@"
835 flags=$(filter_out '-l*' "$@")
836 libs=$(filter '-l*' "$@")
837 check_cc $($cflags_filter $flags) || return
838 flags=$($ldflags_filter $flags)
839 libs=$($ldflags_filter $libs)
840 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
841 }
842
843 print_include(){
844 hdr=$1
845 test "${hdr%.h}" = "${hdr}" &&
846 echo "#include $hdr" ||
847 echo "#include <$hdr>"
848 }
849
850 check_code(){
851 log check_code "$@"
852 check=$1
853 headers=$2
854 code=$3
855 shift 3
856 {
857 for hdr in $headers; do
858 print_include $hdr
859 done
860 echo "int main(void) { $code; return 0; }"
861 } | check_$check "$@"
862 }
863
864 check_cppflags(){
865 log check_cppflags "$@"
866 check_cc "$@" <<EOF && append CPPFLAGS "$@"
867 int x;
868 EOF
869 }
870
871 test_cflags(){
872 log test_cflags "$@"
873 set -- $($cflags_filter "$@")
874 check_cc "$@" <<EOF
875 int x;
876 EOF
877 }
878
879 check_cflags(){
880 log check_cflags "$@"
881 test_cflags "$@" && add_cflags "$@"
882 }
883
884 test_objcflags(){
885 log test_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_objcc "$@" <<EOF
888 int x;
889 EOF
890 }
891
892 check_objcflags(){
893 log check_cflags "$@"
894 test_objcflags "$@" && add_objcflags "$@"
895 }
896
897 test_ldflags(){
898 log test_ldflags "$@"
899 check_ld "$@" <<EOF
900 int main(void){ return 0; }
901 EOF
902 }
903
904 check_ldflags(){
905 log check_ldflags "$@"
906 test_ldflags "$@" && add_ldflags "$@"
907 }
908
909 test_stripflags(){
910 log test_stripflags "$@"
911 # call check_cc to get a fresh TMPO
912 check_cc <<EOF
913 int main(void) { return 0; }
914 EOF
915 check_cmd $strip $STRIPFLAGS "$@" $TMPO
916 }
917
918 check_stripflags(){
919 log check_stripflags "$@"
920 test_stripflags "$@" && add_stripflags "$@"
921 }
922
923 check_header(){
924 log check_header "$@"
925 header=$1
926 shift
927 disable_safe $header
928 check_cpp "$@" <<EOF && enable_safe $header
929 #include <$header>
930 int x;
931 EOF
932 }
933
934 check_func(){
935 log check_func "$@"
936 func=$1
937 shift
938 disable $func
939 check_ld "$@" <<EOF && enable $func
940 extern int $func();
941 int main(void){ $func(); }
942 EOF
943 }
944
945 check_mathfunc(){
946 log check_mathfunc "$@"
947 func=$1
948 narg=$2
949 shift 2
950 test $narg = 2 && args="f, g" || args="f"
951 disable $func
952 check_ld "$@" <<EOF && enable $func
953 #include <math.h>
954 float foo(float f, float g) { return $func($args); }
955 int main(void){ return 0; }
956 EOF
957 }
958
959 check_func_headers(){
960 log check_func_headers "$@"
961 headers=$1
962 funcs=$2
963 shift 2
964 {
965 for hdr in $headers; do
966 print_include $hdr
967 done
968 for func in $funcs; do
969 echo "long check_$func(void) { return (long) $func; }"
970 done
971 echo "int main(void) { return 0; }"
972 } | check_ld "$@" && enable $funcs && enable_safe $headers
973 }
974
975 check_cpp_condition(){
976 log check_cpp_condition "$@"
977 header=$1
978 condition=$2
979 shift 2
980 check_cpp "$@" <<EOF
981 #include <$header>
982 #if !($condition)
983 #error "unsatisfied condition: $condition"
984 #endif
985 EOF
986 }
987
988 check_lib(){
989 log check_lib "$@"
990 header="$1"
991 func="$2"
992 shift 2
993 check_header $header && check_func $func "$@" && add_extralibs "$@"
994 }
995
996 check_lib2(){
997 log check_lib2 "$@"
998 headers="$1"
999 funcs="$2"
1000 shift 2
1001 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1002 }
1003
1004 check_pkg_config(){
1005 log check_pkg_config "$@"
1006 pkg="$1"
1007 headers="$2"
1008 funcs="$3"
1009 shift 3
1010 check_cmd $pkg_config --exists --print-errors $pkg || return
1011 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1012 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1013 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1014 set_safe "${pkg}_cflags" $pkg_cflags &&
1015 set_safe "${pkg}_libs" $pkg_libs
1016 }
1017
1018 check_exec(){
1019 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1020 }
1021
1022 check_exec_crash(){
1023 code=$(cat)
1024
1025 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1026 # are safe but may not be available everywhere. Thus we use
1027 # raise(SIGTERM) instead. The check is run in a subshell so we
1028 # can redirect the "Terminated" message from the shell. SIGBUS
1029 # is not defined by standard C so it is used conditionally.
1030
1031 (check_exec "$@") >> $logfile 2>&1 <<EOF
1032 #include <signal.h>
1033 static void sighandler(int sig){
1034 raise(SIGTERM);
1035 }
1036 int foo(void){
1037 $code
1038 }
1039 int (*func_ptr)(void) = foo;
1040 int main(void){
1041 signal(SIGILL, sighandler);
1042 signal(SIGFPE, sighandler);
1043 signal(SIGSEGV, sighandler);
1044 #ifdef SIGBUS
1045 signal(SIGBUS, sighandler);
1046 #endif
1047 return func_ptr();
1048 }
1049 EOF
1050 }
1051
1052 check_type(){
1053 log check_type "$@"
1054 headers=$1
1055 type=$2
1056 shift 2
1057 disable_safe "$type"
1058 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1059 }
1060
1061 check_struct(){
1062 log check_struct "$@"
1063 headers=$1
1064 struct=$2
1065 member=$3
1066 shift 3
1067 disable_safe "${struct}_${member}"
1068 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1069 enable_safe "${struct}_${member}"
1070 }
1071
1072 check_builtin(){
1073 log check_builtin "$@"
1074 name=$1
1075 headers=$2
1076 builtin=$3
1077 shift 3
1078 disable "$name"
1079 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1080 }
1081
1082 check_compile_assert(){
1083 log check_compile_assert "$@"
1084 name=$1
1085 headers=$2
1086 condition=$3
1087 shift 3
1088 disable "$name"
1089 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1090 }
1091
1092 require(){
1093 name="$1"
1094 header="$2"
1095 func="$3"
1096 shift 3
1097 check_lib $header $func "$@" || die "ERROR: $name not found"
1098 }
1099
1100 require2(){
1101 name="$1"
1102 headers="$2"
1103 func="$3"
1104 shift 3
1105 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1106 }
1107
1108 require_pkg_config(){
1109 pkg="$1"
1110 check_pkg_config "$@" || die "ERROR: $pkg not found"
1111 add_cflags $(get_safe "${pkg}_cflags")
1112 add_extralibs $(get_safe "${pkg}_libs")
1113 }
1114
1115 hostcc_e(){
1116 eval printf '%s\\n' $HOSTCC_E
1117 }
1118
1119 hostcc_o(){
1120 eval printf '%s\\n' $HOSTCC_O
1121 }
1122
1123 check_host_cc(){
1124 log check_host_cc "$@"
1125 cat > $TMPC
1126 log_file $TMPC
1127 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1128 }
1129
1130 check_host_cpp(){
1131 log check_host_cpp "$@"
1132 cat > $TMPC
1133 log_file $TMPC
1134 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1135 }
1136
1137 check_host_cppflags(){
1138 log check_host_cppflags "$@"
1139 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1140 int x;
1141 EOF
1142 }
1143
1144 check_host_cflags(){
1145 log check_host_cflags "$@"
1146 set -- $($host_cflags_filter "$@")
1147 check_host_cc "$@" <<EOF && append host_cflags "$@"
1148 int x;
1149 EOF
1150 }
1151
1152 check_host_cpp_condition(){
1153 log check_host_cpp_condition "$@"
1154 header=$1
1155 condition=$2
1156 shift 2
1157 check_host_cpp "$@" <<EOF
1158 #include <$header>
1159 #if !($condition)
1160 #error "unsatisfied condition: $condition"
1161 #endif
1162 EOF
1163 }
1164
1165 apply(){
1166 file=$1
1167 shift
1168 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1169 }
1170
1171 cp_if_changed(){
1172 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1173 mkdir -p "$(dirname $2)"
1174 $cp_f "$1" "$2"
1175 }
1176
1177 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1178 # system-dependent things.
1179
1180 AVCODEC_COMPONENTS="
1181 bsfs
1182 decoders
1183 encoders
1184 hwaccels
1185 parsers
1186 "
1187
1188 AVDEVICE_COMPONENTS="
1189 indevs
1190 outdevs
1191 "
1192 AVFILTER_COMPONENTS="
1193 filters
1194 "
1195 AVFORMAT_COMPONENTS="
1196 demuxers
1197 muxers
1198 protocols
1199 "
1200
1201 AVRESAMPLE_COMPONENTS=""
1202 AVUTIL_COMPONENTS=""
1203
1204 COMPONENT_LIST="
1205 $AVCODEC_COMPONENTS
1206 $AVDEVICE_COMPONENTS
1207 $AVFILTER_COMPONENTS
1208 $AVFORMAT_COMPONENTS
1209 $AVRESAMPLE_COMPONENTS
1210 $AVUTIL_COMPONENTS
1211 "
1212
1213 EXAMPLE_LIST="
1214 avcodec_example
1215 filter_audio_example
1216 metadata_example
1217 output_example
1218 qsvdec_example
1219 transcode_aac_example
1220 "
1221
1222 HWACCEL_LIBRARY_NONFREE_LIST="
1223 cuda
1224 libnpp
1225 "
1226 HWACCEL_LIBRARY_LIST="
1227 $HWACCEL_LIBRARY_NONFREE_LIST
1228 d3d11va
1229 dxva2
1230 libmfx
1231 mmal
1232 nvenc
1233 omx
1234 vaapi
1235 vda
1236 vdpau
1237 "
1238
1239 EXTERNAL_LIBRARY_GPL_LIST="
1240 libcdio
1241 libx264
1242 libx265
1243 libxavs
1244 libxvid
1245 "
1246
1247 EXTERNAL_LIBRARY_NONFREE_LIST="
1248 libfaac
1249 libfdk_aac
1250 openssl
1251 "
1252
1253 EXTERNAL_LIBRARY_VERSION3_LIST="
1254 libopencore_amrnb
1255 libopencore_amrwb
1256 libvo_aacenc
1257 libvo_amrwbenc
1258 "
1259
1260 EXTERNAL_LIBRARY_LIST="
1261 $EXTERNAL_LIBRARY_GPL_LIST
1262 $EXTERNAL_LIBRARY_NONFREE_LIST
1263 $EXTERNAL_LIBRARY_VERSION3_LIST
1264 avisynth
1265 bzlib
1266 frei0r
1267 gnutls
1268 libbs2b
1269 libdc1394
1270 libdcadec
1271 libfontconfig
1272 libfreetype
1273 libgsm
1274 libhdcd
1275 libilbc
1276 libkvazaar
1277 libmp3lame
1278 libopencv
1279 libopenh264
1280 libopenjpeg
1281 libopus
1282 libpulse
1283 librtmp
1284 libschroedinger
1285 libsnappy
1286 libspeex
1287 libtheora
1288 libtwolame
1289 libvorbis
1290 libvpx
1291 libwavpack
1292 libwebp
1293 libxcb
1294 libxcb_shm
1295 libxcb_xfixes
1296 zlib
1297 "
1298
1299 FEATURE_LIST="
1300 gray
1301 hardcoded_tables
1302 omx_rpi
1303 runtime_cpudetect
1304 safe_bitstream_reader
1305 shared
1306 small
1307 sram
1308 static
1309 swscale_alpha
1310 "
1311
1312 LIBRARY_LIST="
1313 avcodec
1314 avdevice
1315 avfilter
1316 avformat
1317 avresample
1318 avutil
1319 swscale
1320 "
1321
1322 LICENSE_LIST="
1323 gpl
1324 nonfree
1325 version3
1326 "
1327
1328 PROGRAM_LIST="
1329 avconv
1330 avplay
1331 avprobe
1332 "
1333
1334 SUBSYSTEM_LIST="
1335 dct
1336 doc
1337 error_resilience
1338 faan
1339 fft
1340 lsp
1341 lzo
1342 mdct
1343 network
1344 rdft
1345 "
1346
1347 CONFIG_LIST="
1348 $COMPONENT_LIST
1349 $EXAMPLE_LIST
1350 $EXTERNAL_LIBRARY_LIST
1351 $HWACCEL_LIBRARY_LIST
1352 $FEATURE_LIST
1353 $LICENSE_LIST
1354 $LIBRARY_LIST
1355 $PROGRAM_LIST
1356 $SUBSYSTEM_LIST
1357 memalign_hack
1358 neon_clobber_test
1359 pic
1360 pod2man
1361 texi2html
1362 thumb
1363 valgrind_backtrace
1364 xmm_clobber_test
1365 "
1366
1367 THREADS_LIST="
1368 pthreads
1369 w32threads
1370 "
1371
1372 ATOMICS_LIST="
1373 atomics_gcc
1374 atomics_suncc
1375 atomics_win32
1376 "
1377
1378 ARCH_LIST="
1379 aarch64
1380 alpha
1381 arm
1382 avr32
1383 avr32_ap
1384 avr32_uc
1385 bfin
1386 ia64
1387 m68k
1388 mips
1389 mips64
1390 parisc
1391 ppc
1392 ppc64
1393 s390
1394 sh4
1395 sparc
1396 sparc64
1397 tilegx
1398 tilepro
1399 tomi
1400 x86
1401 x86_32
1402 x86_64
1403 "
1404
1405 ARCH_EXT_LIST_ARM="
1406 armv5te
1407 armv6
1408 armv6t2
1409 armv8
1410 neon
1411 vfp
1412 vfpv3
1413 "
1414
1415 ARCH_EXT_LIST_X86_SIMD="
1416 amd3dnow
1417 amd3dnowext
1418 avx
1419 avx2
1420 fma3
1421 fma4
1422 mmx
1423 mmxext
1424 sse
1425 sse2
1426 sse3
1427 sse4
1428 sse42
1429 ssse3
1430 xop
1431 "
1432
1433 ARCH_EXT_LIST_PPC="
1434 altivec
1435 dcbzl
1436 ldbrx
1437 power8
1438 ppc4xx
1439 vsx
1440 "
1441
1442 ARCH_EXT_LIST_X86="
1443 $ARCH_EXT_LIST_X86_SIMD
1444 cpunop
1445 i686
1446 "
1447
1448 ARCH_EXT_LIST_MIPS="
1449 loongson
1450 mips32r1
1451 mips64r1
1452 mips32r2
1453 mips64r2
1454 mips32r6
1455 mips64r6
1456 "
1457
1458 ARCH_EXT_LIST="
1459 $ARCH_EXT_LIST_ARM
1460 $ARCH_EXT_LIST_MIPS
1461 $ARCH_EXT_LIST_PPC
1462 $ARCH_EXT_LIST_X86
1463 vis
1464 "
1465
1466 ARCH_FEATURES="
1467 aligned_stack
1468 fast_64bit
1469 fast_clz
1470 fast_cmov
1471 local_aligned_8
1472 local_aligned_16
1473 local_aligned_32
1474 simd_align
1475 simd_align_16
1476 simd_align_32
1477 "
1478
1479 BUILTIN_LIST="
1480 atomic_cas_ptr
1481 machine_rw_barrier
1482 MemoryBarrier
1483 mm_empty
1484 rdtsc
1485 sem_timedwait
1486 sync_val_compare_and_swap
1487 "
1488 HAVE_LIST_CMDLINE="
1489 inline_asm
1490 symver
1491 yasm
1492 "
1493
1494 HAVE_LIST_PUB="
1495 bigendian
1496 fast_unaligned
1497 "
1498
1499 HEADERS_LIST="
1500 AVFoundation_AVFoundation_h
1501 alsa_asoundlib_h
1502 altivec_h
1503 arpa_inet_h
1504 cdio_paranoia_h
1505 cdio_paranoia_paranoia_h
1506 dispatch_dispatch_h
1507 dev_bktr_ioctl_bt848_h
1508 dev_bktr_ioctl_meteor_h
1509 dev_ic_bt8xx_h
1510 dev_video_bktr_ioctl_bt848_h
1511 dev_video_meteor_ioctl_meteor_h
1512 direct_h
1513 dlfcn_h
1514 d3d11_h
1515 dxva_h
1516 gsm_h
1517 io_h
1518 mach_mach_time_h
1519 machine_ioctl_bt848_h
1520 machine_ioctl_meteor_h
1521 malloc_h
1522 poll_h
1523 sndio_h
1524 soundcard_h
1525 sys_mman_h
1526 sys_param_h
1527 sys_resource_h
1528 sys_select_h
1529 sys_soundcard_h
1530 sys_time_h
1531 sys_un_h
1532 sys_videoio_h
1533 unistd_h
1534 valgrind_valgrind_h
1535 windows_h
1536 winsock2_h
1537 "
1538
1539 INTRINSICS_LIST="
1540 intrinsics_neon
1541 "
1542
1543 MATH_FUNCS="
1544 atanf
1545 atan2f
1546 cbrtf
1547 cosf
1548 exp2
1549 exp2f
1550 expf
1551 isinf
1552 isnan
1553 ldexpf
1554 llrint
1555 llrintf
1556 log2
1557 log2f
1558 log10f
1559 lrint
1560 lrintf
1561 powf
1562 rint
1563 round
1564 roundf
1565 sinf
1566 trunc
1567 truncf
1568 "
1569
1570 SYSTEM_FUNCS="
1571 aligned_malloc
1572 clock_gettime
1573 closesocket
1574 CommandLineToArgvW
1575 CoTaskMemFree
1576 CryptGenRandom
1577 dlopen
1578 fcntl
1579 flt_lim
1580 fork
1581 getaddrinfo
1582 gethrtime
1583 getopt
1584 GetProcessAffinityMask
1585 GetProcessMemoryInfo
1586 GetProcessTimes
1587 getrusage
1588 GetSystemTimeAsFileTime
1589 gettimeofday
1590 gmtime_r
1591 inet_aton
1592 isatty
1593 jack_port_get_latency_range
1594 LoadLibrary
1595 localtime_r
1596 mach_absolute_time
1597 MapViewOfFile
1598 memalign
1599 mkstemp
1600 mmap
1601 mprotect
1602 nanosleep
1603 posix_memalign
1604 sched_getaffinity
1605 SetConsoleTextAttribute
1606 setmode
1607 setrlimit
1608 Sleep
1609 strerror_r
1610 sysconf
1611 sysctl
1612 usleep
1613 VirtualAlloc
1614 "
1615
1616 TOOLCHAIN_FEATURES="
1617 as_dn_directive
1618 as_fpu_directive
1619 as_func
1620 as_object_arch
1621 asm_mod_q
1622 attribute_may_alias
1623 attribute_packed
1624 ebp_available
1625 ebx_available
1626 gnu_as
1627 ibm_asm
1628 inline_asm_labels
1629 pragma_deprecated
1630 symver_asm_label
1631 symver_gnu_asm
1632 vfp_args
1633 xform_asm
1634 xmm_clobbers
1635 "
1636
1637 TYPES_LIST="
1638 CONDITION_VARIABLE_Ptr
1639 socklen_t
1640 struct_addrinfo
1641 struct_group_source_req
1642 struct_ip_mreq_source
1643 struct_ipv6_mreq
1644 struct_pollfd
1645 struct_rusage_ru_maxrss
1646 struct_sockaddr_in6
1647 struct_sockaddr_sa_len
1648 struct_sockaddr_storage
1649 struct_v4l2_frmivalenum_discrete
1650 "
1651
1652 HAVE_LIST="
1653 $ARCH_EXT_LIST
1654 $(add_suffix _external $ARCH_EXT_LIST)
1655 $(add_suffix _inline $ARCH_EXT_LIST)
1656 $ARCH_FEATURES
1657 $ATOMICS_LIST
1658 $BUILTIN_LIST
1659 $HAVE_LIST_CMDLINE
1660 $HAVE_LIST_PUB
1661 $HEADERS_LIST
1662 $INTRINSICS_LIST
1663 $MATH_FUNCS
1664 $SYSTEM_FUNCS
1665 $THREADS_LIST
1666 $TOOLCHAIN_FEATURES
1667 $TYPES_LIST
1668 atomics_native
1669 dos_paths
1670 dxva2_lib
1671 libc_msvcrt
1672 libdc1394_1
1673 libdc1394_2
1674 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1675 sdl
1676 section_data_rel_ro
1677 threads
1678 vaapi_drm
1679 vaapi_x11
1680 vdpau_x11
1681 xlib
1682 "
1683
1684 # options emitted with CONFIG_ prefix but not available on the command line
1685 CONFIG_EXTRA="
1686 aandcttables
1687 ac3dsp
1688 audio_frame_queue
1689 audiodsp
1690 blockdsp
1691 bswapdsp
1692 cabac
1693 dirac_parse
1694 dvprofile
1695 faandct
1696 faanidct
1697 fdctdsp
1698 flacdsp
1699 fmtconvert
1700 g722dsp
1701 gcrypt
1702 gmp
1703 golomb
1704 gplv3
1705 h263dsp
1706 h264chroma
1707 h264dsp
1708 h264parse
1709 h264pred
1710 h264qpel
1711 hpeldsp
1712 huffman
1713 huffyuvdsp
1714 huffyuvencdsp
1715 idctdsp
1716 iirfilter
1717 imdct15
1718 intrax8
1719 iso_media
1720 ividsp
1721 jpegtables
1722 libx262
1723 lgplv3
1724 lpc
1725 lzf
1726 me_cmp
1727 mpeg_er
1728 mpegaudio
1729 mpegaudiodsp
1730 mpegvideo
1731 mpegvideoenc
1732 mss34dsp
1733 pixblockdsp
1734 qpeldsp
1735 qsv
1736 qsvdec
1737 qsvenc
1738 rangecoder
1739 riffdec
1740 riffenc
1741 rtpdec
1742 rtpenc_chain
1743 rv34dsp
1744 sinewin
1745 snappy
1746 srtp
1747 startcode
1748 texturedsp
1749 texturedspenc
1750 tpeldsp
1751 vaapi_encode
1752 vc1dsp
1753 videodsp
1754 vp3dsp
1755 vp56dsp
1756 vp8dsp
1757 wma_freqs
1758 wmv2dsp
1759 "
1760
1761 CMDLINE_SELECT="
1762 $ARCH_EXT_LIST
1763 $CONFIG_LIST
1764 $HAVE_LIST_CMDLINE
1765 $THREADS_LIST
1766 asm
1767 cross_compile
1768 debug
1769 extra_warnings
1770 logging
1771 lto
1772 optimizations
1773 rpath
1774 "
1775
1776 PATHS_LIST="
1777 bindir
1778 datadir
1779 docdir
1780 incdir
1781 libdir
1782 mandir
1783 prefix
1784 shlibdir
1785 "
1786
1787 CMDLINE_SET="
1788 $PATHS_LIST
1789 ar
1790 arch
1791 as
1792 build_suffix
1793 cc
1794 objcc
1795 cpu
1796 cross_prefix
1797 custom_allocator
1798 dep_cc
1799 env
1800 extra_version
1801 host_cc
1802 host_cflags
1803 host_ld
1804 host_ldflags
1805 host_libs
1806 host_os
1807 ld
1808 logfile
1809 malloc_prefix
1810 nm
1811 optflags
1812 pkg_config
1813 pkg_config_flags
1814 random_seed
1815 samples
1816 sysinclude
1817 sysroot
1818 target_exec
1819 target_os
1820 target_path
1821 target_samples
1822 toolchain
1823 "
1824
1825 CMDLINE_APPEND="
1826 extra_cflags
1827 extra_objcflags
1828 host_cppflags
1829 "
1830
1831 # code dependency declarations
1832
1833 # architecture extensions
1834
1835 armv5te_deps="arm"
1836 armv6_deps="arm"
1837 armv6t2_deps="arm"
1838 armv8_deps="aarch64"
1839 neon_deps_any="aarch64 arm"
1840 intrinsics_neon_deps="neon"
1841 vfp_deps_any="aarch64 arm"
1842 vfpv3_deps="vfp"
1843
1844 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1845
1846 altivec_deps="ppc"
1847 ppc4xx_deps="ppc"
1848 vsx_deps="altivec"
1849 power8_deps="vsx"
1850
1851 cpunop_deps="i686"
1852 x86_64_select="i686"
1853 x86_64_suggest="fast_cmov"
1854
1855 amd3dnow_deps="mmx"
1856 amd3dnowext_deps="amd3dnow"
1857 i686_deps="x86"
1858 mmx_deps="x86"
1859 mmxext_deps="mmx"
1860 sse_deps="mmxext"
1861 sse2_deps="sse"
1862 sse3_deps="sse2"
1863 ssse3_deps="sse3"
1864 sse4_deps="ssse3"
1865 sse42_deps="sse4"
1866 avx_deps="sse42"
1867 xop_deps="avx"
1868 fma3_deps="avx"
1869 fma4_deps="avx"
1870 avx2_deps="avx"
1871
1872 mmx_external_deps="yasm"
1873 mmx_inline_deps="inline_asm"
1874 mmx_suggest="mmx_external mmx_inline"
1875
1876 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1877 eval dep=\$${ext}_deps
1878 eval ${ext}_external_deps='"${dep}_external"'
1879 eval ${ext}_inline_deps='"${dep}_inline"'
1880 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1881 done
1882
1883 aligned_stack_if_any="aarch64 ppc x86"
1884 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1885 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1886 fast_unaligned_if_any="aarch64 ppc x86"
1887 simd_align_if_any="simd_align_16 simd_align_32"
1888 simd_align_16_if_any="altivec neon sse"
1889 simd_align_32_if_any="avx"
1890
1891 # system capabilities
1892 symver_if_any="symver_asm_label symver_gnu_asm"
1893 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1894
1895 # threading support
1896 atomics_gcc_if="sync_val_compare_and_swap"
1897 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1898 atomics_win32_if="MemoryBarrier"
1899 atomics_native_if_any="$ATOMICS_LIST"
1900 w32threads_deps="atomics_native"
1901 threads_if_any="$THREADS_LIST"
1902
1903 # subsystems
1904 dct_select="rdft"
1905 dirac_parse_select="golomb"
1906 error_resilience_select="me_cmp"
1907 faandct_deps="faan fdctdsp"
1908 faanidct_deps="faan idctdsp"
1909 h264dsp_select="startcode"
1910 intrax8_select="blockdsp idctdsp"
1911 mdct_select="fft"
1912 rdft_select="fft"
1913 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1914 mpeg_er_select="error_resilience"
1915 mpegaudio_select="mpegaudiodsp"
1916 mpegaudiodsp_select="dct"
1917 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1918 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1919 vc1dsp_select="h264chroma qpeldsp startcode"
1920
1921 # decoders / encoders
1922 aac_decoder_select="imdct15 mdct sinewin"
1923 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1924 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1925 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1926 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1927 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1928 adpcm_g722_decoder_select="g722dsp"
1929 adpcm_g722_encoder_select="g722dsp"
1930 aic_decoder_select="golomb idctdsp"
1931 alac_encoder_select="lpc"
1932 als_decoder_select="bswapdsp"
1933 amrnb_decoder_select="lsp"
1934 amrwb_decoder_select="lsp"
1935 amv_decoder_select="sp5x_decoder"
1936 ape_decoder_select="bswapdsp"
1937 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1938 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1939 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1940 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1941 atrac1_decoder_select="mdct sinewin"
1942 atrac3_decoder_select="mdct"
1943 atrac3p_decoder_select="mdct sinewin"
1944 bink_decoder_select="blockdsp hpeldsp"
1945 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1946 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1947 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1948 cllc_decoder_select="bswapdsp"
1949 comfortnoise_encoder_select="lpc"
1950 cook_decoder_select="audiodsp mdct sinewin"
1951 cscd_decoder_select="lzo"
1952 cscd_decoder_suggest="zlib"
1953 dca_decoder_select="fmtconvert mdct"
1954 dds_decoder_select="texturedsp"
1955 dnxhd_decoder_select="blockdsp idctdsp"
1956 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1957 dvvideo_decoder_select="dvprofile idctdsp"
1958 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1959 dxa_decoder_deps="zlib"
1960 dxv_decoder_select="lzf texturedsp"
1961 eac3_decoder_select="ac3_decoder"
1962 eac3_encoder_select="ac3_encoder"
1963 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1964 eatgq_decoder_select="aandcttables idctdsp"
1965 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1966 exr_decoder_deps="zlib"
1967 ffv1_decoder_select="golomb rangecoder"
1968 ffv1_encoder_select="rangecoder"
1969 ffvhuff_decoder_select="huffyuv_decoder"
1970 ffvhuff_encoder_select="huffyuv_encoder"
1971 fic_decoder_select="golomb"
1972 flac_decoder_select="flacdsp golomb"
1973 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1974 flashsv_decoder_deps="zlib"
1975 flashsv_encoder_deps="zlib"
1976 flashsv2_decoder_deps="zlib"
1977 flv_decoder_select="h263_decoder"
1978 flv_encoder_select="h263_encoder"
1979 fourxm_decoder_select="blockdsp bswapdsp"
1980 fraps_decoder_select="bswapdsp huffman"
1981 g2m_decoder_deps="zlib"
1982 g2m_decoder_select="blockdsp idctdsp jpegtables"
1983 h261_decoder_select="mpeg_er mpegvideo"
1984 h261_encoder_select="aandcttables mpegvideoenc"
1985 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1986 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1987 h263i_decoder_select="h263_decoder"
1988 h263p_encoder_select="h263_encoder"
1989 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1990 h264_decoder_suggest="error_resilience"
1991 hap_decoder_select="snappy texturedsp"
1992 hap_encoder_deps="libsnappy"
1993 hap_encoder_select="texturedspenc"
1994 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1995 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1996 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1997 iac_decoder_select="imc_decoder"
1998 imc_decoder_select="bswapdsp fft mdct sinewin"
1999 indeo3_decoder_select="hpeldsp"
2000 indeo4_decoder_select="ividsp"
2001 indeo5_decoder_select="ividsp"
2002 interplay_video_decoder_select="hpeldsp"
2003 jpegls_decoder_select="golomb mjpeg_decoder"
2004 jpegls_encoder_select="golomb"
2005 jv_decoder_select="blockdsp"
2006 lagarith_decoder_select="huffyuvdsp"
2007 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2008 loco_decoder_select="golomb"
2009 magicyuv_decoder_select="huffyuvdsp"
2010 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2011 metasound_decoder_select="lsp mdct sinewin"
2012 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2013 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2014 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2015 mjpegb_decoder_select="mjpeg_decoder"
2016 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2017 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2018 mlp_decoder_select="mlp_parser"
2019 motionpixels_decoder_select="bswapdsp"
2020 mp1_decoder_select="mpegaudio"
2021 mp1float_decoder_select="mpegaudio"
2022 mp2_decoder_select="mpegaudio"
2023 mp2float_decoder_select="mpegaudio"
2024 mp3_decoder_select="mpegaudio"
2025 mp3adu_decoder_select="mpegaudio"
2026 mp3adufloat_decoder_select="mpegaudio"
2027 mp3float_decoder_select="mpegaudio"
2028 mp3on4_decoder_select="mpegaudio"
2029 mp3on4float_decoder_select="mpegaudio"
2030 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2031 mpc8_decoder_select="mpegaudiodsp"
2032 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2033 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2034 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2035 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2036 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2037 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2038 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2039 mpeg4_encoder_select="h263_encoder"
2040 msa1_decoder_select="mss34dsp"
2041 msmpeg4v1_decoder_select="h263_decoder"
2042 msmpeg4v2_decoder_select="h263_decoder"
2043 msmpeg4v2_encoder_select="h263_encoder"
2044 msmpeg4v3_decoder_select="h263_decoder"
2045 msmpeg4v3_encoder_select="h263_encoder"
2046 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2047 mts2_decoder_select="mss34dsp"
2048 mxpeg_decoder_select="mjpeg_decoder"
2049 nellymoser_decoder_select="mdct sinewin"
2050 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2051 nuv_decoder_select="idctdsp lzo"
2052 on2avc_decoder_select="mdct"
2053 opus_decoder_deps="avresample"
2054 opus_decoder_select="imdct15"
2055 png_decoder_deps="zlib"
2056 png_encoder_deps="zlib"
2057 png_encoder_select="huffyuvencdsp"
2058 prores_decoder_select="idctdsp"
2059 prores_encoder_select="fdctdsp"
2060 qcelp_decoder_select="lsp"
2061 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2062 ra_144_encoder_select="audio_frame_queue lpc"
2063 ralf_decoder_select="golomb"
2064 rscc_decoder_deps="zlib"
2065 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2066 rv10_encoder_select="h263_encoder"
2067 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2068 rv20_encoder_select="h263_encoder"
2069 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2070 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2071 screenpresso_decoder_deps="zlib"
2072 shorten_decoder_select="golomb"
2073 sipr_decoder_select="lsp"
2074 sp5x_decoder_select="mjpeg_decoder"
2075 svq1_decoder_select="hpeldsp"
2076 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2077 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2078 svq3_decoder_suggest="zlib"
2079 tak_decoder_select="audiodsp"
2080 tdsc_decoder_deps="zlib"
2081 tdsc_decoder_select="mjpeg_decoder"
2082 theora_decoder_select="vp3_decoder"
2083 thp_decoder_select="mjpeg_decoder"
2084 tiff_decoder_suggest="zlib"
2085 tiff_encoder_suggest="zlib"
2086 truehd_decoder_select="mlp_decoder"
2087 truemotion2_decoder_select="bswapdsp"
2088 truespeech_decoder_select="bswapdsp"
2089 tscc_decoder_deps="zlib"
2090 txd_decoder_select="texturedsp"
2091 twinvq_decoder_select="mdct lsp sinewin"
2092 utvideo_decoder_select="bswapdsp"
2093 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2094 vble_decoder_select="huffyuvdsp"
2095 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2096 vc1image_decoder_select="vc1_decoder"
2097 vorbis_decoder_select="mdct"
2098 vorbis_encoder_select="mdct"
2099 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2100 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2101 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2102 vp6a_decoder_select="vp6_decoder"
2103 vp6f_decoder_select="vp6_decoder"
2104 vp7_decoder_select="h264pred videodsp vp8dsp"
2105 vp8_decoder_select="h264pred videodsp vp8dsp"
2106 vp9_decoder_select="videodsp"
2107 webp_decoder_select="vp8_decoder"
2108 wmapro_decoder_select="mdct sinewin wma_freqs"
2109 wmav1_decoder_select="mdct sinewin wma_freqs"
2110 wmav1_encoder_select="mdct sinewin wma_freqs"
2111 wmav2_decoder_select="mdct sinewin wma_freqs"
2112 wmav2_encoder_select="mdct sinewin wma_freqs"
2113 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2114 wmv1_decoder_select="h263_decoder"
2115 wmv1_encoder_select="h263_encoder"
2116 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2117 wmv2_encoder_select="h263_encoder wmv2dsp"
2118 wmv3_decoder_select="vc1_decoder"
2119 wmv3image_decoder_select="wmv3_decoder"
2120 zerocodec_decoder_deps="zlib"
2121 zlib_decoder_deps="zlib"
2122 zlib_encoder_deps="zlib"
2123 zmbv_decoder_deps="zlib"
2124 zmbv_encoder_deps="zlib"
2125
2126 # hardware accelerators
2127 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2128 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2129 vaapi_deps="va_va_h"
2130 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2131 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2132 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2133
2134 h263_vaapi_hwaccel_deps="vaapi"
2135 h263_vaapi_hwaccel_select="h263_decoder"
2136 h264_d3d11va_hwaccel_deps="d3d11va"
2137 h264_d3d11va_hwaccel_select="h264_decoder"
2138 h264_dxva2_hwaccel_deps="dxva2"
2139 h264_dxva2_hwaccel_select="h264_decoder"
2140 h264_mmal_decoder_deps="mmal"
2141 h264_mmal_decoder_select="mmal"
2142 h264_mmal_hwaccel_deps="mmal"
2143 h264_omx_encoder_deps="omx"
2144 h264_qsv_hwaccel_deps="libmfx"
2145 h264_vaapi_hwaccel_deps="vaapi"
2146 h264_vaapi_hwaccel_select="h264_decoder"
2147 h264_vda_hwaccel_deps="vda"
2148 h264_vda_hwaccel_select="h264_decoder"
2149 h264_vda_old_hwaccel_deps="vda"
2150 h264_vda_old_hwaccel_select="h264_decoder"
2151 h264_vdpau_hwaccel_deps="vdpau"
2152 h264_vdpau_hwaccel_select="h264_decoder"
2153 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2154 hevc_d3d11va_hwaccel_select="hevc_decoder"
2155 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2156 hevc_dxva2_hwaccel_select="hevc_decoder"
2157 hevc_qsv_hwaccel_deps="libmfx"
2158 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2159 hevc_vdpau_hwaccel_select="hevc_decoder"
2160 mpeg1_vdpau_hwaccel_deps="vdpau"
2161 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2162 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2163 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2164 mpeg2_dxva2_hwaccel_deps="dxva2"
2165 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2166 mpeg2_mmal_decoder_deps="mmal"
2167 mpeg2_mmal_decoder_select="mmal"
2168 mpeg2_mmal_hwaccel_deps="mmal"
2169 mpeg2_qsv_hwaccel_deps="libmfx"
2170 mpeg2_vaapi_hwaccel_deps="vaapi"
2171 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2172 mpeg2_vdpau_hwaccel_deps="vdpau"
2173 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2174 mpeg4_omx_encoder_deps="omx"
2175 mpeg4_vaapi_hwaccel_deps="vaapi"
2176 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2177 mpeg4_vdpau_hwaccel_deps="vdpau"
2178 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2179 vc1_d3d11va_hwaccel_deps="d3d11va"
2180 vc1_d3d11va_hwaccel_select="vc1_decoder"
2181 vc1_dxva2_hwaccel_deps="dxva2"
2182 vc1_dxva2_hwaccel_select="vc1_decoder"
2183 vc1_mmal_decoder_deps="mmal"
2184 vc1_mmal_decoder_select="mmal"
2185 vc1_mmal_hwaccel_deps="mmal"
2186 vc1_vaapi_hwaccel_deps="vaapi"
2187 vc1_vaapi_hwaccel_select="vc1_decoder"
2188 vc1_vdpau_hwaccel_deps="vdpau"
2189 vc1_vdpau_hwaccel_select="vc1_decoder"
2190 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2191 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2192 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2193 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2194
2195 # hardware-accelerated codecs
2196 nvenc_deps_any="dlopen LoadLibrary"
2197 nvenc_extralibs='$ldl'
2198 omx_deps="dlopen pthreads"
2199 omx_extralibs='$ldl'
2200 qsvdec_select="qsv"
2201 qsvenc_select="qsv"
2202 vaapi_encode_deps="vaapi"
2203
2204 hwupload_cuda_filter_deps="cuda"
2205 scale_npp_filter_deps="cuda libnpp"
2206
2207 h264_nvenc_encoder_deps="nvenc"
2208 h264_qsv_decoder_deps="libmfx"
2209 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2210 h264_qsv_encoder_deps="libmfx"
2211 h264_qsv_encoder_select="qsvenc"
2212 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2213 h264_vaapi_encoder_select="vaapi_encode golomb"
2214
2215 hevc_nvenc_encoder_deps="nvenc"
2216 hevc_qsv_decoder_deps="libmfx"
2217 hevc_qsv_encoder_deps="libmfx"
2218 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2219 hevc_qsv_encoder_select="qsvenc"
2220 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2221 hevc_vaapi_encoder_select="vaapi_encode golomb"
2222 mpeg2_qsv_decoder_deps="libmfx"
2223 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2224 mpeg2_qsv_encoder_deps="libmfx"
2225 mpeg2_qsv_encoder_select="qsvenc"
2226
2227 nvenc_h264_encoder_deps="nvenc"
2228 nvenc_hevc_encoder_deps="nvenc"
2229
2230 # parsers
2231 h264_parser_select="golomb h264dsp h264parse"
2232 hevc_parser_select="golomb"
2233 mpegvideo_parser_select="mpegvideo"
2234 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2235 vc1_parser_select="vc1dsp"
2236
2237 # bitstream_filters
2238 mjpeg2jpeg_bsf_select="jpegtables"
2239
2240 # external libraries
2241 libdcadec_decoder_deps="libdcadec"
2242 libfaac_encoder_deps="libfaac"
2243 libfaac_encoder_select="audio_frame_queue"
2244 libfdk_aac_decoder_deps="libfdk_aac"
2245 libfdk_aac_encoder_deps="libfdk_aac"
2246 libfdk_aac_encoder_select="audio_frame_queue"
2247 libgsm_decoder_deps="libgsm"
2248 libgsm_encoder_deps="libgsm"
2249 libgsm_ms_decoder_deps="libgsm"
2250 libgsm_ms_encoder_deps="libgsm"
2251 libilbc_decoder_deps="libilbc"
2252 libilbc_encoder_deps="libilbc"
2253 libkvazaar_encoder_deps="libkvazaar"
2254 libmp3lame_encoder_deps="libmp3lame"
2255 libmp3lame_encoder_select="audio_frame_queue"
2256 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2257 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2258 libopencore_amrnb_encoder_select="audio_frame_queue"
2259 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2260 libopenh264_decoder_deps="libopenh264"
2261 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2262 libopenh264_encoder_deps="libopenh264"
2263 libopenjpeg_decoder_deps="libopenjpeg"
2264 libopenjpeg_encoder_deps="libopenjpeg"
2265 libopus_decoder_deps="libopus"
2266 libopus_encoder_deps="libopus"
2267 libopus_encoder_select="audio_frame_queue"
2268 libschroedinger_decoder_deps="libschroedinger"
2269 libschroedinger_encoder_deps="libschroedinger"
2270 libspeex_decoder_deps="libspeex"
2271 libspeex_encoder_deps="libspeex"
2272 libspeex_encoder_select="audio_frame_queue"
2273 libtheora_encoder_deps="libtheora"
2274 libtwolame_encoder_deps="libtwolame"
2275 libvo_aacenc_encoder_deps="libvo_aacenc"
2276 libvo_aacenc_encoder_select="audio_frame_queue"
2277 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2278 libvorbis_encoder_deps="libvorbis"
2279 libvorbis_encoder_select="audio_frame_queue"
2280 libvpx_vp8_decoder_deps="libvpx"
2281 libvpx_vp8_encoder_deps="libvpx"
2282 libvpx_vp9_decoder_deps="libvpx"
2283 libvpx_vp9_encoder_deps="libvpx"
2284 libwavpack_encoder_deps="libwavpack"
2285 libwebp_encoder_deps="libwebp"
2286 libx262_encoder_deps="libx262"
2287 libx264_encoder_deps="libx264"
2288 libx265_encoder_deps="libx265"
2289 libxavs_encoder_deps="libxavs"
2290 libxvid_encoder_deps="libxvid"
2291
2292 # demuxers / muxers
2293 ac3_demuxer_select="ac3_parser"
2294 asf_demuxer_select="riffdec"
2295 asf_muxer_select="riffenc"
2296 asf_stream_muxer_select="asf_muxer"
2297 avi_demuxer_select="iso_media riffdec"
2298 avi_muxer_select="riffenc"
2299 avisynth_demuxer_deps="avisynth"
2300 avisynth_demuxer_select="riffdec"
2301 caf_demuxer_select="iso_media riffdec"
2302 dash_muxer_select="mp4_muxer"
2303 dirac_demuxer_select="dirac_parser"
2304 dv_demuxer_select="dvprofile"
2305 dv_muxer_select="dvprofile"
2306 dxa_demuxer_select="riffdec"
2307 eac3_demuxer_select="ac3_parser"
2308 f4v_muxer_select="mov_muxer"
2309 flac_demuxer_select="flac_parser"
2310 hds_muxer_select="flv_muxer"
2311 hls_muxer_select="mpegts_muxer"
2312 ipod_muxer_select="mov_muxer"
2313 ismv_muxer_select="mov_muxer"
2314 matroska_audio_muxer_select="matroska_muxer"
2315 matroska_demuxer_select="iso_media riffdec"
2316 matroska_demuxer_suggest="bzlib lzo zlib"
2317 matroska_muxer_select="iso_media riffenc"
2318 mmf_muxer_select="riffenc"
2319 mov_demuxer_select="iso_media riffdec"
2320 mov_demuxer_suggest="zlib"
2321 mov_muxer_select="iso_media riffenc rtpenc_chain"
2322 mp3_demuxer_select="mpegaudio_parser"
2323 mp4_muxer_select="mov_muxer"
2324 mpegts_demuxer_select="iso_media"
2325 mpegts_muxer_select="adts_muxer latm_muxer"
2326 mpegtsraw_demuxer_select="mpegts_demuxer"
2327 mxf_d10_muxer_select="mxf_muxer"
2328 nut_muxer_select="riffenc"
2329 nuv_demuxer_select="riffdec"
2330 oga_muxer_select="ogg_muxer"
2331 ogg_demuxer_select="dirac_parse"
2332 opus_muxer_select="ogg_muxer"
2333 psp_muxer_select="mov_muxer"
2334 rtp_demuxer_select="sdp_demuxer"
2335 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2336 rtsp_demuxer_select="http_protocol rtpdec"
2337 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2338 sap_demuxer_select="sdp_demuxer"
2339 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2340 sdp_demuxer_select="rtpdec"
2341 smoothstreaming_muxer_select="ismv_muxer"
2342 spdif_muxer_select="aac_parser"
2343 spx_muxer_select="ogg_muxer"
2344 swf_demuxer_suggest="zlib"
2345 tak_demuxer_select="tak_parser"
2346 tg2_muxer_select="mov_muxer"
2347 tgp_muxer_select="mov_muxer"
2348 w64_demuxer_select="wav_demuxer"
2349 wav_demuxer_select="riffdec"
2350 wav_muxer_select="riffenc"
2351 webm_muxer_select="iso_media riffenc"
2352 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2353 wtv_demuxer_select="mpegts_demuxer riffdec"
2354 xmv_demuxer_select="riffdec"
2355 xwma_demuxer_select="riffdec"
2356
2357 # indevs / outdevs
2358 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2359 alsa_outdev_deps="alsa_asoundlib_h"
2360 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2361 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2362 dv1394_indev_deps="dv1394"
2363 dv1394_indev_select="dv_demuxer"
2364 fbdev_indev_deps="linux_fb_h"
2365 jack_indev_deps="jack_jack_h"
2366 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2367 libcdio_indev_deps="libcdio"
2368 libdc1394_indev_deps="libdc1394"
2369 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2370 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2371 pulse_indev_deps="libpulse"
2372 sndio_indev_deps="sndio_h"
2373 sndio_outdev_deps="sndio_h"
2374 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2375 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2376 vfwcap_indev_extralibs="-lavicap32"
2377 xcbgrab_indev_deps="libxcb"
2378
2379 # protocols
2380 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2381 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2382 ffrtmpcrypt_protocol_select="tcp_protocol"
2383 ffrtmphttp_protocol_deps="!librtmp_protocol"
2384 ffrtmphttp_protocol_select="http_protocol"
2385 gopher_protocol_select="network"
2386 http_protocol_select="tcp_protocol"
2387 httpproxy_protocol_select="tcp_protocol"
2388 https_protocol_select="tls_protocol"
2389 icecast_protocol_select="http_protocol"
2390 librtmp_protocol_deps="librtmp"
2391 librtmpe_protocol_deps="librtmp"
2392 librtmps_protocol_deps="librtmp"
2393 librtmpt_protocol_deps="librtmp"
2394 librtmpte_protocol_deps="librtmp"
2395 mmsh_protocol_select="http_protocol"
2396 mmst_protocol_select="network"
2397 rtmp_protocol_deps="!librtmp_protocol"
2398 rtmp_protocol_select="tcp_protocol"
2399 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2400 rtmps_protocol_deps="!librtmp_protocol"
2401 rtmps_protocol_select="tls_protocol"
2402 rtmpt_protocol_select="ffrtmphttp_protocol"
2403 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2404 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2405 rtp_protocol_select="udp_protocol"
2406 sctp_protocol_deps="struct_sctp_event_subscribe"
2407 sctp_protocol_select="network"
2408 srtp_protocol_select="rtp_protocol srtp"
2409 tcp_protocol_select="network"
2410 tls_gnutls_protocol_deps="gnutls"
2411 tls_gnutls_protocol_select="tcp_protocol"
2412 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2413 tls_openssl_protocol_select="tcp_protocol"
2414 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2415 udp_protocol_select="network"
2416 unix_protocol_deps="sys_un_h"
2417 unix_protocol_select="network"
2418
2419 # filters
2420 blackframe_filter_deps="gpl"
2421 boxblur_filter_deps="gpl"
2422 bs2b_filter_deps="libbs2b"
2423 cropdetect_filter_deps="gpl"
2424 deinterlace_qsv_filter_deps="libmfx"
2425 delogo_filter_deps="gpl"
2426 drawtext_filter_deps="libfreetype"
2427 frei0r_filter_deps="frei0r dlopen"
2428 frei0r_filter_extralibs='$ldl'
2429 frei0r_src_filter_deps="frei0r dlopen"
2430 frei0r_src_filter_extralibs='$ldl'
2431 hdcd_filter_deps="libhdcd"
2432 hqdn3d_filter_deps="gpl"
2433 interlace_filter_deps="gpl"
2434 ocv_filter_deps="libopencv"
2435 resample_filter_deps="avresample"
2436 scale_filter_deps="swscale"
2437 scale_qsv_filter_deps="libmfx"
2438 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2439
2440 # examples
2441 avcodec_example_deps="avcodec avutil"
2442 filter_audio_example_deps="avfilter avutil"
2443 metadata_example_deps="avformat avutil"
2444 output_example_deps="avcodec avformat avutil swscale"
2445 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2446 transcode_aac_example_deps="avcodec avformat avresample"
2447
2448 # libraries, in linking order
2449 avcodec_deps="avutil"
2450 avdevice_deps="avformat avcodec avutil"
2451 avfilter_deps="avutil"
2452 avformat_deps="avcodec avutil"
2453 avresample_deps="avutil"
2454 swscale_deps="avutil"
2455
2456 # programs
2457 avconv_deps="avcodec avfilter avformat avresample swscale"
2458 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2459 fps_filter null_filter resample_filter scale_filter
2460 trim_filter"
2461 avplay_deps="avcodec avfilter avformat avresample sdl"
2462 avplay_libs='$sdl_libs'
2463 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2464 avprobe_deps="avcodec avformat"
2465
2466 # documentation
2467 pod2man_deps="doc"
2468 texi2html_deps="doc"
2469
2470 # default parameters
2471
2472 logfile="config.log"
2473
2474 # installation paths
2475 prefix_default="/usr/local"
2476 bindir_default='${prefix}/bin'
2477 datadir_default='${prefix}/share/avconv'
2478 docdir_default='${prefix}/share/doc/libav'
2479 incdir_default='${prefix}/include'
2480 libdir_default='${prefix}/lib'
2481 mandir_default='${prefix}/share/man'
2482 shlibdir_default="$libdir_default"
2483
2484 # toolchain
2485 ar_default="ar"
2486 cc_default="gcc"
2487 host_cc_default="gcc"
2488 cp_f="cp -f"
2489 ln_s="ln -s -f"
2490 nm_default="nm -g"
2491 objformat="elf"
2492 pkg_config_default=pkg-config
2493 ranlib="ranlib"
2494 strip="strip"
2495 version_script='--version-script'
2496 yasmexe="yasm"
2497
2498 # machine
2499 arch_default=$(uname -m)
2500 cpu="generic"
2501 intrinsics="none"
2502
2503 # OS
2504 target_os_default=$(tolower $(uname -s))
2505 host_os=$target_os_default
2506
2507 # configurable options
2508 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2509
2510 enable asm
2511 enable debug
2512 enable doc
2513 enable faan faandct faanidct
2514 enable optimizations
2515 enable safe_bitstream_reader
2516 enable static
2517 enable swscale_alpha
2518 enable valgrind_backtrace
2519
2520 # By default, enable only those hwaccels that have no external dependencies.
2521 enable d3d11va dxva2 vda vdpau
2522
2523 # build settings
2524 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2525 LIBPREF="lib"
2526 LIBSUF=".a"
2527 FULLNAME='$(NAME)$(BUILDSUF)'
2528 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2529 SLIBPREF="lib"
2530 SLIBSUF=".so"
2531 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2532 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2533 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2534 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2535 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2536 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2537 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2538
2539 asflags_filter=echo
2540 cflags_filter=echo
2541 ldflags_filter=echo
2542
2543 AS_C='-c'
2544 AS_O='-o $@'
2545 CC_C='-c'
2546 CC_E='-E -o $@'
2547 CC_O='-o $@'
2548 OBJCC_C='-c'
2549 OBJCC_E='-E -o $@'
2550 OBJCC_O='-o $@'
2551 LD_O='-o $@'
2552 LD_LIB='-l%'
2553 LD_PATH='-L'
2554 HOSTCC_C='-c'
2555 HOSTCC_E='-E -o $@'
2556 HOSTCC_O='-o $@'
2557 HOSTLD_O='-o $@'
2558
2559 host_libs='-lm'
2560 host_cflags_filter=echo
2561 host_ldflags_filter=echo
2562
2563 target_path='$(CURDIR)'
2564
2565 # since the object filename is not given with the -MM flag, the compiler
2566 # is only able to print the basename, and we must add the path ourselves
2567 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2568 DEPFLAGS='-MM'
2569
2570 # find source path
2571 if test -f configure; then
2572 source_path=.
2573 else
2574 source_path=$(cd $(dirname "$0"); pwd)
2575 echo "$source_path" | grep -q '[[:blank:]]' &&
2576 die "Out of tree builds are impossible with whitespace in source path."
2577 test -e "$source_path/config.h" &&
2578 die "Out of tree builds are impossible with config.h in source dir."
2579 fi
2580
2581 for v in "$@"; do
2582 r=${v#*=}
2583 l=${v%"$r"}
2584 r=$(sh_quote "$r")
2585 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2586 done
2587
2588 find_things(){
2589 thing=$1
2590 pattern=$2
2591 file=$source_path/$3
2592 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2593 }
2594
2595 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2596 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2597 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2598 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2599 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2600 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2601 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2602 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2603 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2604
2605 find_things_extern(){
2606 thing=$1
2607 pattern=$2
2608 file=$source_path/$3
2609 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2610 }
2611
2612 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2613 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2614
2615 ALL_COMPONENTS="
2616 $BSF_LIST
2617 $DECODER_LIST
2618 $DEMUXER_LIST
2619 $ENCODER_LIST
2620 $FILTER_LIST
2621 $HWACCEL_LIST
2622 $INDEV_LIST
2623 $MUXER_LIST
2624 $OUTDEV_LIST
2625 $PARSER_LIST
2626 $PROTOCOL_LIST
2627 "
2628
2629 for n in $COMPONENT_LIST; do
2630 v=$(toupper ${n%s})_LIST
2631 eval enable \$$v
2632 eval ${n}_if_any="\$$v"
2633 done
2634
2635 enable $ARCH_EXT_LIST
2636
2637 die_unknown(){
2638 echo "Unknown option \"$1\"."
2639 echo "See $0 --help for available options."
2640 exit 1
2641 }
2642
2643 print_3_columns() {
2644 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2645 }
2646
2647 show_list() {
2648 suffix=_$1
2649 shift
2650 echo $* | sed s/$suffix//g | print_3_columns
2651 exit 0
2652 }
2653
2654 rand_list(){
2655 IFS=', '
2656 set -- $*
2657 unset IFS
2658 for thing; do
2659 comp=${thing%:*}
2660 prob=${thing#$comp}
2661 prob=${prob#:}
2662 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2663 echo "prob ${prob:-0.5}"
2664 printf '%s\n' $comp
2665 done
2666 }
2667
2668 do_random(){
2669 action=$1
2670 shift
2671 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2672 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2673 }
2674
2675 for opt do
2676 optval="${opt#*=}"
2677 case "$opt" in
2678 --extra-ldflags=*)
2679 add_ldflags $optval
2680 ;;
2681 --extra-ldexeflags=*)
2682 add_ldexeflags $optval
2683 ;;
2684 --extra-libs=*)
2685 add_extralibs $optval
2686 ;;
2687 --disable-devices)
2688 disable $INDEV_LIST $OUTDEV_LIST
2689 ;;
2690 --enable-debug=*)
2691 debuglevel="$optval"
2692 ;;
2693 --disable-programs)
2694 disable $PROGRAM_LIST
2695 ;;
2696 --disable-everything)
2697 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2698 ;;
2699 --disable-all)
2700 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2701 disable $LIBRARY_LIST $PROGRAM_LIST doc
2702 ;;
2703 --enable-random|--disable-random)
2704 action=${opt%%-random}
2705 do_random ${action#--} $COMPONENT_LIST
2706 ;;
2707 --enable-random=*|--disable-random=*)
2708 action=${opt%%-random=*}
2709 do_random ${action#--} $optval
2710 ;;
2711 --enable-*=*|--disable-*=*)
2712 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2713 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2714 eval list=\$$(toupper $thing)_LIST
2715 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2716 $action $(filter "$name" $list)
2717 ;;
2718 --enable-avserver|--disable-avserver*)
2719 warn "avserver has been removed, the ${opt} option is only"\
2720 "provided for compatibility and will be removed in the future"
2721 ;;
2722 --enable-?*|--disable-?*)
2723 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2724 if is_in $option $COMPONENT_LIST; then
2725 test $action = disable && action=unset
2726 eval $action \$$(toupper ${option%s})_LIST
2727 elif is_in $option $CMDLINE_SELECT; then
2728 $action $option
2729 else
2730 die_unknown $opt
2731 fi
2732 ;;
2733 --list-*)
2734 NAME="${opt#--list-}"
2735 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2736 NAME=${NAME%s}
2737 eval show_list $NAME \$$(toupper $NAME)_LIST
2738 ;;
2739 --help|-h) show_help
2740 ;;
2741 *)
2742 optname="${opt%%=*}"
2743 optname="${optname#--}"
2744 optname=$(echo "$optname" | sed 's/-/_/g')
2745 if is_in $optname $CMDLINE_SET; then
2746 eval $optname='$optval'
2747 elif is_in $optname $CMDLINE_APPEND; then
2748 append $optname "$optval"
2749 else
2750 die_unknown $opt
2751 fi
2752 ;;
2753 esac
2754 done
2755
2756 for e in $env; do
2757 eval "export $e"
2758 done
2759
2760 disabled logging && logfile=/dev/null
2761
2762 # Disable all the library-specific components if the library itself
2763 # is disabled, see AVCODEC_LIST and following _LIST variables.
2764
2765 disable_components(){
2766 disabled ${1} && disable $(
2767 eval components="\$$(toupper ${1})_COMPONENTS"
2768 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2769 )
2770 }
2771
2772 map 'disable_components $v' $LIBRARY_LIST
2773
2774 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2775 set >> $logfile
2776
2777 case "$toolchain" in
2778 *-asan)
2779 cc_default="${toolchain%-asan}"
2780 add_cflags -fsanitize=address
2781 add_ldflags -fsanitize=address
2782 ;;
2783 *-msan)
2784 cc_default="${toolchain%-msan}"
2785 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2786 add_ldflags -fsanitize=memory
2787 ;;
2788 *-tsan)
2789 cc_default="${toolchain%-tsan}"
2790 add_cflags -fsanitize=thread -pie
2791 add_ldflags -fsanitize=thread -pie
2792 case "$toolchain" in
2793 gcc-tsan)
2794 add_cflags -fPIC
2795 add_ldflags -fPIC
2796 ;;
2797 esac
2798 ;;
2799 *-usan)
2800 cc_default="${toolchain%-usan}"
2801 add_cflags -fsanitize=undefined
2802 add_ldflags -fsanitize=undefined
2803 case "$toolchain" in
2804 clang-usan)
2805 add_cflags -O1
2806 ;;
2807 esac
2808 ;;
2809 valgrind-*)
2810 target_exec_default="valgrind"
2811 case "$toolchain" in
2812 valgrind-massif)
2813 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2814 ;;
2815 valgrind-memcheck)
2816 target_exec_args="--track-origins=yes --leak-check=full"
2817 ;;
2818 esac
2819 ;;
2820 msvc)
2821 # Check whether the current MSVC version needs the C99 converter.
2822 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2823 # support enough of C99 to build libav. Default to the new
2824 # behaviour if the regexp was unable to match anything, since this
2825 # successfully parses the version number of existing supported
2826 # versions that require the converter (MSVC 2010 and 2012).
2827 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2828 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2829 cc_default="cl"
2830 else
2831 cc_default="c99wrap cl"
2832 fi
2833 ld_default="$source_path/compat/windows/mslink"
2834 nm_default="dumpbin -symbols"
2835 ar_default="lib"
2836 case "$arch" in
2837 arm*)
2838 as_default="armasm"
2839 ;;
2840 esac
2841 target_os_default="win32"
2842 # Use a relative path for TMPDIR. This makes sure all the
2843 # ffconf temp files are written with a relative path, avoiding
2844 # issues with msys/win32 path conversion for MSVC parameters
2845 # such as -Fo<file> or -out:<file>.
2846 TMPDIR=.
2847 ;;
2848 icl)
2849 cc_default="icl"
2850 ld_default="xilink"
2851 nm_default="dumpbin -symbols"
2852 ar_default="xilib"
2853 target_os_default="win32"
2854 TMPDIR=.
2855 ;;
2856 gcov)
2857 add_cflags -fprofile-arcs -ftest-coverage
2858 add_ldflags -fprofile-arcs -ftest-coverage
2859 ;;
2860 llvm-cov)
2861 add_cflags -fprofile-arcs -ftest-coverage
2862 add_ldflags --coverage
2863 ;;
2864 hardened)
2865 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2866 add_cflags -fno-strict-overflow -fstack-protector-all
2867 add_ldflags -Wl,-z,relro -Wl,-z,now
2868 ;;
2869 ?*)
2870 die "Unknown toolchain $toolchain"
2871 ;;
2872 esac
2873
2874 test -n "$cross_prefix" && enable cross_compile
2875
2876 if enabled cross_compile; then
2877 test -n "$arch" && test -n "$target_os" ||
2878 die "Must specify target arch and OS when cross-compiling"
2879 fi
2880
2881 ar_default="${cross_prefix}${ar_default}"
2882 cc_default="${cross_prefix}${cc_default}"
2883 occ_default="${cross_prefix}${occ_default}"
2884 nm_default="${cross_prefix}${nm_default}"
2885 pkg_config_default="${cross_prefix}${pkg_config_default}"
2886 ranlib="${cross_prefix}${ranlib}"
2887 strip="${cross_prefix}${strip}"
2888
2889 sysinclude_default="${sysroot}/usr/include"
2890
2891 set_default arch cc pkg_config sysinclude target_exec target_os
2892 enabled cross_compile || host_cc_default=$cc
2893 set_default host_cc
2894
2895 if ! $pkg_config --version >/dev/null 2>&1; then
2896 warn "$pkg_config not found, library detection may fail."
2897 pkg_config=false
2898 fi
2899
2900 exesuf() {
2901 case $1 in
2902 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2903 esac
2904 }
2905
2906 EXESUF=$(exesuf $target_os)
2907 HOSTEXESUF=$(exesuf $host_os)
2908
2909 # set temporary file name
2910 : ${TMPDIR:=$TEMPDIR}
2911 : ${TMPDIR:=$TMP}
2912 : ${TMPDIR:=/tmp}
2913
2914 if ! check_cmd mktemp -u XXXXXX; then
2915 # simple replacement for missing mktemp
2916 # NOT SAFE FOR GENERAL USE
2917 mktemp(){
2918 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2919 }
2920 fi
2921
2922 tmpfile(){
2923 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2924 (set -C; exec > $tmp) 2>/dev/null ||
2925 die "Unable to create temporary file in $TMPDIR."
2926 append TMPFILES $tmp
2927 eval $1=$tmp
2928 }
2929
2930 trap 'rm -f -- $TMPFILES' EXIT
2931
2932 tmpfile TMPASM .asm
2933 tmpfile TMPC .c
2934 tmpfile TMPE $EXESUF
2935 tmpfile TMPH .h
2936 tmpfile TMPO .o
2937 tmpfile TMPS .S
2938 tmpfile TMPSH .sh
2939 tmpfile TMPV .ver
2940
2941 unset -f mktemp
2942
2943 chmod +x $TMPE
2944
2945 # make sure we can execute files in $TMPDIR
2946 cat > $TMPSH 2>> $logfile <<EOF
2947 #! /bin/sh
2948 EOF
2949 chmod +x $TMPSH >> $logfile 2>&1
2950 if ! $TMPSH >> $logfile 2>&1; then
2951 cat <<EOF
2952 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2953 variable to another directory and make sure that it is not mounted noexec.
2954 EOF
2955 die "Sanity test failed."
2956 fi
2957
2958 armasm_flags(){
2959 for flag; do
2960 case $flag in
2961 # Filter out MSVC cl.exe options from cflags that shouldn't
2962 # be passed to gas-preprocessor
2963 -M[TD]*) ;;
2964 *) echo $flag ;;
2965 esac
2966 done
2967 }
2968
2969 ccc_flags(){
2970 for flag; do
2971 case $flag in
2972 -std=c99) echo -c99 ;;
2973 -mcpu=*) echo -arch ${flag#*=} ;;
2974 -mieee) echo -ieee ;;
2975 -O*|-fast) echo $flag ;;
2976 -fno-math-errno) echo -assume nomath_errno ;;
2977 -g) echo -g3 ;;
2978 -Wall) echo -msg_enable level2 ;;
2979 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2980 -Wl,*) echo $flag ;;
2981 -f*|-W*) ;;
2982 *) echo $flag ;;
2983 esac
2984 done
2985 }
2986
2987 cparser_flags(){
2988 for flag; do
2989 case $flag in
2990 -Wno-switch) echo -Wno-switch-enum ;;
2991 -Wno-format-zero-length) ;;
2992 -Wdisabled-optimization) ;;
2993 -Wno-pointer-sign) echo -Wno-other ;;
2994 *) echo $flag ;;
2995 esac
2996 done
2997 }
2998
2999 msvc_common_flags(){
3000 for flag; do
3001 case $flag in
3002 # In addition to specifying certain flags under the compiler
3003 # specific filters, they must be specified here as well or else the
3004 # generic catch all at the bottom will print the original flag.
3005 -Wall) ;;
3006 -std=c99) ;;
3007 # Common flags
3008 -fomit-frame-pointer) ;;
3009 -g) echo -Z7 ;;
3010 -fno-math-errno) ;;
3011 -fno-common) ;;
3012 -fno-signed-zeros) ;;
3013 -fPIC) ;;
3014 -mthumb) ;;
3015 -march=*) ;;
3016 -lz) echo zlib.lib ;;
3017 -lavifil32) echo vfw32.lib ;;
3018 -lavicap32) echo vfw32.lib user32.lib ;;
3019 -lx264) echo libx264.lib ;;
3020 -l*) echo ${flag#-l}.lib ;;
3021 -L*) echo -libpath:${flag#-L} ;;
3022 *) echo $flag ;;
3023 esac
3024 done
3025 }
3026
3027 msvc_flags(){
3028 msvc_common_flags "$@"
3029 for flag; do
3030 case $flag in
3031 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3032 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3033 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3034 -wd4273 -wd4554 -wd4701 ;;
3035 esac
3036 done
3037 }
3038
3039 icl_flags(){
3040 msvc_common_flags "$@"
3041 for flag; do
3042 case $flag in
3043 # Despite what Intel's documentation says -Wall, which is supported
3044 # on Windows, does enable remarks so disable them here.
3045 -Wall) echo $flag -Qdiag-disable:remark ;;
3046 -std=c99) echo -Qstd=c99 ;;
3047 esac
3048 done
3049 }
3050
3051 pgi_flags(){
3052 for flag; do
3053 case $flag in
3054 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3055 -fomit-frame-pointer) echo -Mnoframe ;;
3056 -g) echo -gopt ;;
3057 *) echo $flag ;;
3058 esac
3059 done
3060 }
3061
3062 suncc_flags(){
3063 for flag; do
3064 case $flag in
3065 -march=*|-mcpu=*)
3066 case "${flag#*=}" in
3067 native) echo -xtarget=native ;;
3068 v9|niagara) echo -xarch=sparc ;;
3069 ultrasparc) echo -xarch=sparcvis ;;
3070 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3071 i586|pentium) echo -xchip=pentium ;;
3072 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3073 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3074 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3075 pentium4*) echo -xtarget=pentium4 ;;
3076 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3077 *-sse3) echo -xarch=sse3 ;;
3078 core2) echo -xarch=ssse3 -xchip=core2 ;;
3079 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3080 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3081 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3082 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3083 k8|opteron|athlon64|athlon-fx)
3084 echo -xarch=sse2a ;;
3085 athlon*) echo -xarch=pentium_proa ;;
3086 esac
3087 ;;
3088 -std=c99) echo -xc99 ;;
3089 -fomit-frame-pointer) echo -xregs=frameptr ;;
3090 -fPIC) echo -KPIC -xcode=pic32 ;;
3091 -W*,*) echo $flag ;;
3092 -f*-*|-W*|-mimpure-text) ;;
3093 -shared) echo -G ;;
3094 *) echo $flag ;;
3095 esac
3096 done
3097 }
3098
3099 tms470_flags(){
3100 for flag; do
3101 case $flag in
3102 -march=*|-mcpu=*)
3103 case "${flag#*=}" in
3104 armv7-a|cortex-a*) echo -mv=7a8 ;;
3105 armv7-r|cortex-r*) echo -mv=7r4 ;;
3106 armv7-m|cortex-m*) echo -mv=7m3 ;;
3107 armv6*|arm11*) echo -mv=6 ;;
3108 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3109 echo -mv=5e ;;
3110 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3111 esac
3112 ;;
3113 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3114 -mfpu=vfp) echo --float_support=vfpv2 ;;
3115 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3116 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3117 -msoft-float) echo --float_support=vfplib ;;
3118 -O[0-3]|-mf=*) echo $flag ;;
3119 -g) echo -g -mn ;;
3120 -pds=*) echo $flag ;;
3121 -D*|-I*) echo $flag ;;
3122 --gcc|--abi=*) echo $flag ;;
3123 -me) echo $flag ;;
3124 esac
3125 done
3126 }
3127
3128 probe_cc(){
3129 pfx=$1
3130 _cc=$2
3131
3132 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3133 unset _ld_o _ldflags _ld_lib _ld_path
3134 unset _depflags _DEPCMD _DEPFLAGS
3135 _flags_filter=echo
3136
3137 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3138 _type=llvm_gcc
3139 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3140 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3141 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3142 _cflags_speed='-O3'
3143 _cflags_size='-Os'
3144 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3145 _type=gcc
3146 gcc_version=$($_cc --version | head -n1)
3147 gcc_basever=$($_cc -dumpversion)
3148 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3149 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3150 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3151 if ! $_cc -dumpversion | grep -q '^2\.'; then
3152 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3153 fi
3154 _cflags_speed='-O3'
3155 _cflags_size='-Os'
3156 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3157 _type=icc
3158 _ident=$($_cc --version | head -n1)
3159 _depflags='-MMD'
3160 _cflags_speed='-O3'
3161 _cflags_size='-Os'
3162 _cflags_noopt='-O1'
3163 elif $_cc -v 2>&1 | grep -q xlc; then
3164 _type=xlc
3165 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3166 _cflags_speed='-O5'
3167 _cflags_size='-O5 -qcompact'
3168 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3169 _type=ccc
3170 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3171 _DEPFLAGS='-M'
3172 _cflags_speed='-fast'
3173 _cflags_size='-O1'
3174 _flags_filter=ccc_flags
3175 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3176 test -d "$sysroot" || die "No valid sysroot specified."
3177 _type=armcc
3178 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3179 armcc_conf="$PWD/armcc.conf"
3180 $_cc --arm_linux_configure \
3181 --arm_linux_config_file="$armcc_conf" \
3182 --configure_sysroot="$sysroot" \
3183 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3184 die "Error creating armcc configuration file."
3185 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3186 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3187 as_default="${cross_prefix}gcc"
3188 _depflags='-MMD'
3189 _cflags_speed='-O3'
3190 _cflags_size='-Os'
3191 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3192 _type=tms470
3193 _ident=$($_cc -version | head -n1 | tr -s ' ')
3194 _flags='--gcc --abi=eabi -me'
3195 _cc_e='-ppl -fe=$@'
3196 _cc_o='-fe=$@'
3197 _depflags='-ppa -ppd=$(@:.o=.d)'
3198 _cflags_speed='-O3 -mf=5'
3199 _cflags_size='-O3 -mf=2'
3200 _flags_filter=tms470_flags
3201 elif $_cc -v 2>&1 | grep -q clang; then
3202 _type=clang
3203 _ident=$($_cc --version 2>/dev/null | head -n1)
3204 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3205 _cflags_speed='-O3'
3206 _cflags_size='-Os'
3207 elif $_cc -V 2>&1 | grep -q Sun; then
3208 _type=suncc
3209 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3210 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3211 _DEPFLAGS='-xM1 -xc99'
3212 _ldflags='-std=c99'
3213 _cflags_speed='-O5'
3214 _cflags_size='-O5 -xspace'
3215 _flags_filter=suncc_flags
3216 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3217 _type=pathscale
3218 _ident=$($_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'
3223 elif $_cc -v 2>&1 | grep -q Open64; then
3224 _type=open64
3225 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3226 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3227 _cflags_speed='-O2'
3228 _cflags_size='-Os'
3229 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3230 elif $_cc -V 2>&1 | grep -q Portland; then
3231 _type=pgi
3232 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3233 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3234 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3235 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3236 _cflags_noopt="-O1"
3237 _flags_filter=pgi_flags
3238 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3239 _type=armasm
3240 _ident=$($_cc | head -n1)
3241 # 4509: "This form of conditional instruction is deprecated"
3242 _flags="-nologo -ignore 4509"
3243 _flags_filter=armasm_flags
3244 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3245 _type=msvc
3246 _ident=$($_cc 2>&1 | head -n1)
3247 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3248 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3249 _cflags_speed="-O2"
3250 _cflags_size="-O1"
3251 if $_cc -nologo- 2>&1 | grep -q Linker; then
3252 _ld_o='-out:$@'
3253 else
3254 _ld_o='-Fe$@'
3255 fi
3256 _cc_o='-Fo$@'
3257 _cc_e='-P -Fi$@'
3258 _flags_filter=msvc_flags
3259 _ld_lib='lib%.a'
3260 _ld_path='-libpath:'
3261 _flags='-nologo'
3262 elif $_cc 2>&1 | grep -q Intel; then
3263 _type=icl
3264 _ident=$($_cc 2>&1 | head -n1)
3265 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3266 # Not only is O3 broken on 13.x+ but it is slower on all previous
3267 # versions (tested) as well.
3268 _cflags_speed="-O2"
3269 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3270 if $_cc 2>&1 | grep -q Linker; then
3271 _ld_o='-out:$@'
3272 else
3273 _ld_o='-Fe$@'
3274 fi
3275 _cc_o='-Fo$@'
3276 _cc_e='-P'
3277 _flags_filter=icl_flags
3278 _ld_lib='lib%.a'
3279 _ld_path='-libpath:'
3280 # -Qdiag-error to make icl error when seeing certain unknown arguments
3281 _flags='-nologo -Qdiag-error:4044,10157'
3282 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3283 # with MSVC which enables it by default.
3284 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3285 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3286 # lld can emulate multiple different linkers; in ms link.exe mode,
3287 # the -? parameter gives the help output which contains an identifyable
3288 # string, while it gives an error in other modes.
3289 _type=lld-link
3290 # The link.exe mode doesn't have a switch for getting the version,
3291 # but we can force it back to gnu mode and get the version from there.
3292 _ident=$($_cc -flavor gnu --version)
3293 _ld_o='-out:$@'
3294 _flags_filter=msvc_flags
3295 _ld_lib='lib%.a'
3296 _ld_path='-libpath:'
3297 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3298 _type=cparser
3299 _ident=$($_cc --version | head -n1)
3300 _depflags='-MMD'
3301 _cflags_speed='-O4'
3302 _cflags_size='-O2'
3303 _flags_filter=cparser_flags
3304 fi
3305
3306 eval ${pfx}_type=\$_type
3307 eval ${pfx}_ident=\$_ident
3308 }
3309
3310 set_ccvars(){
3311 eval ${1}_C=\${_cc_c-\${${1}_C}}
3312 eval ${1}_E=\${_cc_e-\${${1}_E}}
3313 eval ${1}_O=\${_cc_o-\${${1}_O}}
3314
3315 if [ -n "$_depflags" ]; then
3316 eval ${1}_DEPFLAGS=\$_depflags
3317 else
3318 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3319 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3320 eval DEP${1}FLAGS=\$_flags
3321 fi
3322 }
3323
3324 probe_cc cc "$cc"
3325 cflags_filter=$_flags_filter
3326 cflags_speed=$_cflags_speed
3327 cflags_size=$_cflags_size
3328 cflags_noopt=$_cflags_noopt
3329 add_cflags $_flags $_cflags
3330 cc_ldflags=$_ldflags
3331 set_ccvars CC
3332
3333 probe_cc hostcc "$host_cc"
3334 host_cflags_filter=$_flags_filter
3335 add_host_cflags $_flags $_cflags
3336 set_ccvars HOSTCC
3337
3338 test -n "$cc_type" && enable $cc_type ||
3339 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3340
3341 : ${as_default:=$cc}
3342 : ${objcc_default:=$cc}
3343 : ${dep_cc_default:=$cc}
3344 : ${ld_default:=$cc}
3345 : ${host_ld_default:=$host_cc}
3346 set_default ar as objcc dep_cc ld host_ld
3347
3348 probe_cc as "$as"
3349 asflags_filter=$_flags_filter
3350 add_asflags $_flags $_cflags
3351 set_ccvars AS
3352
3353 probe_cc objcc "$objcc"
3354 objcflags_filter=$_flags_filter
3355 add_objcflags $_flags $_cflags
3356 set_ccvars OBJC
3357
3358 probe_cc ld "$ld"
3359 ldflags_filter=$_flags_filter
3360 add_ldflags $_flags $_ldflags
3361 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3362 LD_O=${_ld_o-$LD_O}
3363 LD_LIB=${_ld_lib-$LD_LIB}
3364 LD_PATH=${_ld_path-$LD_PATH}
3365
3366 probe_cc hostld "$host_ld"
3367 host_ldflags_filter=$_flags_filter
3368 add_host_ldflags $_flags $_ldflags
3369 HOSTLD_O=${_ld_o-$HOSTLD_O}
3370
3371 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3372 probe_cc depcc "$dep_cc"
3373 CCDEP=${_DEPCMD:-$DEPCMD}
3374 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3375 DEPCCFLAGS=$_flags
3376 fi
3377
3378 if $ar 2>&1 | grep -q Microsoft; then
3379 arflags="-nologo"
3380 ar_o='-out:$@'
3381 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3382 arflags="rq"
3383 ar_o='$@'
3384 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3385 arflags='-Xany -r -c'
3386 ar_o='$@'
3387 else
3388 arflags="rc"
3389 ar_o='$@'
3390 fi
3391
3392 add_cflags $extra_cflags
3393 add_objcflags $extra_objcflags
3394 add_asflags $extra_cflags
3395
3396 if test -n "$sysroot"; then
3397 case "$cc_type" in
3398 gcc|llvm_gcc|clang)
3399 add_cppflags --sysroot="$sysroot"
3400 add_ldflags --sysroot="$sysroot"
3401 ;;
3402 tms470)
3403 add_cppflags -I"$sysinclude"
3404 add_ldflags --sysroot="$sysroot"
3405 ;;
3406 esac
3407 fi
3408
3409 if test "$cpu" = host; then
3410 enabled cross_compile &&
3411 die "--cpu=host makes no sense when cross-compiling."
3412
3413 case "$cc_type" in
3414 gcc|llvm_gcc)
3415 check_native(){
3416 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3417 sed -n "/cc1.*$1=/{
3418 s/.*$1=\\([^ ]*\\).*/\\1/
3419 p
3420 q
3421 }" $TMPE
3422 }
3423 cpu=$(check_native -march || check_native -mcpu)
3424 ;;
3425 esac
3426
3427 test "${cpu:-host}" = host &&
3428 die "--cpu=host not supported with compiler $cc"
3429 fi
3430
3431 # Deal with common $arch aliases
3432 case "$arch" in
3433 aarch64|arm64)
3434 arch="aarch64"
3435 ;;
3436 arm*)
3437 arch="arm"
3438 ;;
3439 mips*|IP*)
3440 case "$arch" in
3441 *el)
3442 add_cppflags -EL
3443 add_ldflags -EL
3444 ;;
3445 *eb)
3446 add_cppflags -EB
3447 add_ldflags -EB
3448 ;;
3449 esac
3450 arch="mips"
3451 ;;
3452 parisc*|hppa*)
3453 arch="parisc"
3454 ;;
3455 "Power Macintosh"|ppc*|powerpc*)
3456 arch="ppc"
3457 ;;
3458 s390|s390x)
3459 arch="s390"
3460 ;;
3461 sh4|sh)
3462 arch="sh4"
3463 ;;
3464 sun4u|sparc*)
3465 arch="sparc"
3466 ;;
3467 tilegx|tile-gx)
3468 arch="tilegx"
3469 ;;
3470 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3471 arch="x86"
3472 ;;
3473 esac
3474
3475 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3476 enable $arch
3477
3478 # Add processor-specific flags
3479 if enabled aarch64; then
3480
3481 case $cpu in
3482 armv*)
3483 cpuflags="-march=$cpu"
3484 ;;
3485 *)
3486 cpuflags="-mcpu=$cpu"
3487 ;;
3488 esac
3489
3490 elif enabled alpha; then
3491
3492 cpuflags="-mcpu=$cpu"
3493
3494 elif enabled arm; then
3495
3496 check_arm_arch() {
3497 check_cpp_condition stddef.h \
3498 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3499 $cpuflags
3500 }
3501
3502 probe_arm_arch() {
3503 if check_arm_arch 4; then echo armv4
3504 elif check_arm_arch 4T; then echo armv4t
3505 elif check_arm_arch 5; then echo armv5
3506 elif check_arm_arch 5E; then echo armv5e
3507 elif check_arm_arch 5T; then echo armv5t
3508 elif check_arm_arch 5TE; then echo armv5te
3509 elif check_arm_arch 5TEJ; then echo armv5te
3510 elif check_arm_arch 6; then echo armv6
3511 elif check_arm_arch 6J; then echo armv6j
3512 elif check_arm_arch 6K; then echo armv6k
3513 elif check_arm_arch 6Z; then echo armv6z
3514 elif check_arm_arch 6ZK; then echo armv6zk
3515 elif check_arm_arch 6T2; then echo armv6t2
3516 elif check_arm_arch 7; then echo armv7
3517 elif check_arm_arch 7A 7_A; then echo armv7-a
3518 elif check_arm_arch 7S; then echo armv7-a
3519 elif check_arm_arch 7R 7_R; then echo armv7-r
3520 elif check_arm_arch 7M 7_M; then echo armv7-m
3521 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3522 elif check_arm_arch 8A 8_A; then echo armv8-a
3523 fi
3524 }
3525
3526 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3527
3528 case $cpu in
3529 armv*)
3530 cpuflags="-march=$cpu"
3531 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3532 ;;
3533 *)
3534 cpuflags="-mcpu=$cpu"
3535 case $cpu in
3536 cortex-a*) subarch=armv7a ;;
3537 cortex-r*) subarch=armv7r ;;
3538 cortex-m*) enable thumb; subarch=armv7m ;;
3539 arm11*) subarch=armv6 ;;
3540 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3541 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3542 *) subarch=$(probe_arm_arch) ;;
3543 esac
3544 ;;
3545 esac
3546
3547 case "$subarch" in
3548 armv5t*) enable fast_clz ;;
3549 armv[6-8]*) enable fast_clz fast_unaligned ;;
3550 esac
3551
3552 elif enabled avr32; then
3553
3554 case $cpu in
3555 ap7[02]0[0-2])
3556 subarch="avr32_ap"
3557 cpuflags="-mpart=$cpu"
3558 ;;
3559 ap)
3560 subarch="avr32_ap"
3561 cpuflags="-march=$cpu"
3562 ;;
3563 uc3[ab]*)
3564 subarch="avr32_uc"
3565 cpuflags="-mcpu=$cpu"
3566 ;;
3567 uc)
3568 subarch="avr32_uc"
3569 cpuflags="-march=$cpu"
3570 ;;
3571 esac
3572
3573 elif enabled bfin; then
3574
3575 cpuflags="-mcpu=$cpu"
3576
3577 elif enabled mips; then
3578
3579 cpuflags="-march=$cpu"
3580
3581 elif enabled ppc; then
3582
3583 disable ldbrx
3584
3585 case $(tolower $cpu) in
3586 601|ppc601|powerpc601)
3587 cpuflags="-mcpu=601"
3588 disable altivec
3589 ;;
3590 603*|ppc603*|powerpc603*)
3591 cpuflags="-mcpu=603"
3592 disable altivec
3593 ;;
3594 604*|ppc604*|powerpc604*)
3595 cpuflags="-mcpu=604"
3596 disable altivec
3597 ;;
3598 g3|75*|ppc75*|powerpc75*)
3599 cpuflags="-mcpu=750"
3600 disable altivec
3601 ;;
3602 g4|745*|ppc745*|powerpc745*)
3603 cpuflags="-mcpu=7450"
3604 disable vsx
3605 ;;
3606 74*|ppc74*|powerpc74*)
3607 cpuflags="-mcpu=7400"
3608 disable vsx
3609 ;;
3610 g5|970|ppc970|powerpc970)
3611 cpuflags="-mcpu=970"
3612 disable vsx
3613 ;;
3614 power[3-6]*)
3615 cpuflags="-mcpu=$cpu"
3616 disable vsx
3617 ;;
3618 power[7-8]*)
3619 cpuflags="-mcpu=$cpu"
3620 enable ldbrx
3621 ;;
3622 cell)
3623 cpuflags="-mcpu=cell"
3624 enable ldbrx
3625 disable vsx
3626 ;;
3627 e500mc)
3628 cpuflags="-mcpu=e500mc"
3629 disable altivec
3630 ;;
3631 e500v2)
3632 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3633 disable altivec
3634 disable dcbzl
3635 ;;
3636 e500)
3637 cpuflags="-mcpu=8540 -mhard-float"
3638 disable altivec
3639 disable dcbzl
3640 ;;
3641 esac
3642
3643 elif enabled sparc; then
3644
3645 case $cpu in
3646 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3647 cpuflags="-mcpu=$cpu"
3648 ;;
3649 ultrasparc*|niagara[234])
3650 cpuflags="-mcpu=$cpu"
3651 ;;
3652 esac
3653
3654 elif enabled x86; then
3655
3656 case $cpu in
3657 i[345]86|pentium)
3658 cpuflags="-march=$cpu"
3659 disable i686
3660 disable mmx
3661 ;;
3662 # targets that do NOT support nopl and conditional mov (cmov)
3663 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3664 cpuflags="-march=$cpu"
3665 disable i686
3666 ;;
3667 # targets that do support nopl and conditional mov (cmov)
3668 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3669 cpuflags="-march=$cpu"
3670 enable i686
3671 enable fast_cmov
3672 ;;
3673 # targets that do support conditional mov but on which it's slow
3674 pentium4|pentium4m|prescott|nocona)
3675 cpuflags="-march=$cpu"
3676 enable i686
3677 disable fast_cmov
3678 ;;
3679 esac
3680
3681 fi
3682
3683 if [ "$cpu" != generic ]; then
3684 add_cflags $cpuflags
3685 add_asflags $cpuflags
3686 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3687 fi
3688
3689 # compiler sanity check
3690 check_exec <<EOF
3691 int main(void){ return 0; }
3692 EOF
3693 if test "$?" != 0; then
3694 echo "$cc is unable to create an executable file."
3695 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3696 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3697 echo "Only do this if you know what cross compiling means."
3698 fi
3699 die "C compiler test failed."
3700 fi
3701
3702 add_cppflags -D_ISOC99_SOURCE
3703 check_cflags -std=c99
3704 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3705 #include <stdlib.h>
3706 EOF
3707 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3708 #include <stdlib.h>
3709 EOF
3710
3711 add_host_cppflags -D_ISOC99_SOURCE
3712 check_host_cflags -std=c99
3713 check_host_cflags -Wall
3714 check_host_cflags -O3
3715
3716 check_64bit(){
3717 arch32=$1
3718 arch64=$2
3719 expr=$3
3720 check_code cc "" "int test[2*($expr) - 1]" &&
3721 subarch=$arch64 || subarch=$arch32
3722 }
3723
3724 case "$arch" in
3725 aarch64|alpha|ia64)
3726 spic=$shared
3727 ;;
3728 mips)
3729 check_64bit mips mips64 '_MIPS_SIM > 1'
3730 spic=$shared
3731 ;;
3732 parisc)
3733 check_64bit parisc parisc64 'sizeof(void *) > 4'
3734 spic=$shared
3735 ;;
3736 ppc)
3737 check_64bit ppc ppc64 'sizeof(void *) > 4'
3738 spic=$shared
3739 ;;
3740 s390)
3741 check_64bit s390 s390x 'sizeof(void *) > 4'
3742 spic=$shared
3743 ;;
3744 sparc)
3745 check_64bit sparc sparc64 'sizeof(void *) > 4'
3746 spic=$shared
3747 ;;
3748 x86)
3749 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3750 if test "$subarch" = "x86_64"; then
3751 spic=$shared
3752 fi
3753 ;;
3754 esac
3755
3756 enable $subarch
3757 enabled spic && enable_weak pic
3758
3759 # OS specific
3760 case $target_os in
3761 aix)
3762 SHFLAGS=-shared
3763 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3764 enabled shared && add_ldflags -Wl,-brtl
3765 ;;
3766 android)
3767 disable symver
3768 enable section_data_rel_ro
3769 SLIB_INSTALL_NAME='$(SLIBNAME)'
3770 SLIB_INSTALL_LINKS=
3771 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3772 ;;
3773 haiku)
3774 prefix_default="/boot/common"
3775 network_extralibs="-lnetwork"
3776 host_libs=
3777 ;;
3778 sunos)
3779 SHFLAGS='-shared -Wl,-h,$$(@F)'
3780 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3781 network_extralibs="-lsocket -lnsl"
3782 # When using suncc to build, the Solaris linker will mark
3783 # an executable with each instruction set encountered by
3784 # the Solaris assembler. As our libraries contain their own
3785 # guards for processor-specific code, instead suppress
3786 # generation of the HWCAPS ELF section on Solaris x86 only.
3787 enabled_all suncc x86 &&
3788 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3789 add_ldflags -Wl,-M,mapfile
3790 nm_default='nm -P -g'
3791 version_script='-M'
3792 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3793 ;;
3794 netbsd)
3795 disable symver
3796 oss_indev_extralibs="-lossaudio"
3797 oss_outdev_extralibs="-lossaudio"
3798 ;;
3799 openbsd|bitrig)
3800 disable symver
3801 SHFLAGS='-shared'
3802 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3803 SLIB_INSTALL_LINKS=
3804 oss_indev_extralibs="-lossaudio"
3805 oss_outdev_extralibs="-lossaudio"
3806 ;;
3807 dragonfly)
3808 disable symver
3809 ;;
3810 freebsd)
3811 ;;
3812 bsd/os)
3813 add_extralibs -lpoll -lgnugetopt
3814 ;;
3815 darwin)
3816 enabled ppc && add_asflags -force_cpusubtype_ALL
3817 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3818 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3819 add_ldflags -Wl,-dynamic,-search_paths_first
3820 SLIBSUF=".dylib"
3821 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3822 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3823 objformat="macho"
3824 enabled x86_64 && objformat="macho64"
3825 enabled_any pic shared ||
3826 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3827 check_header dispatch/dispatch.h &&
3828 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3829 ;;
3830 msys*)
3831 die "Native MSYS builds are discouraged, please use the MINGW environment."
3832 ;;
3833 mingw32*|mingw64*)
3834 if test $target_os = "mingw32ce"; then
3835 disable network
3836 else
3837 target_os=mingw32
3838 fi
3839 LIBTARGET=i386
3840 if enabled x86_64; then
3841 LIBTARGET="i386:x86-64"
3842 elif enabled arm; then
3843 LIBTARGET=arm-wince
3844 fi
3845 check_ldflags -Wl,--nxcompat
3846 check_ldflags -Wl,--dynamicbase
3847 shlibdir_default="$bindir_default"
3848 SLIBPREF=""
3849 SLIBSUF=".dll"
3850 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3851 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3852 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3853 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3854 SLIB_INSTALL_LINKS=
3855 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3856 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3857 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3858 objformat="win32"
3859 dlltool="${cross_prefix}dlltool"
3860 ranlib=:
3861 enable dos_paths
3862 ;;
3863 win32|win64)
3864 disable symver
3865 if enabled shared; then
3866 # Link to the import library instead of the normal static library
3867 # for shared libs.
3868 LD_LIB='%.lib'
3869 # Cannot build both shared and static libs with MSVC or icl.
3870 disable static
3871 fi
3872 shlibdir_default="$bindir_default"
3873 SLIBPREF=""
3874 SLIBSUF=".dll"
3875 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3876 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3877 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3878 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3879 SLIB_INSTALL_LINKS=
3880 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3881 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3882 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3883 objformat="win32"
3884 ranlib=:
3885 enable dos_paths
3886 ;;
3887 cygwin*)
3888 target_os=cygwin
3889 shlibdir_default="$bindir_default"
3890 SLIBPREF="cyg"
3891 SLIBSUF=".dll"
3892 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3893 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3894 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3895 SLIB_INSTALL_LINKS=
3896 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3897 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3898 objformat="win32"
3899 enable dos_paths
3900 ;;
3901 *-dos|freedos|opendos)
3902 network_extralibs="-lsocket"
3903 objformat="coff"
3904 enable dos_paths
3905 add_cppflags -U__STRICT_ANSI__
3906 ;;
3907 linux)
3908 enable dv1394
3909 enable section_data_rel_ro
3910 ;;
3911 irix*)
3912 target_os=irix
3913 ranlib="echo ignoring ranlib"
3914 ;;
3915 os/2*)
3916 ln_s="cp -f"
3917 objformat="aout"
3918 add_cppflags -D_GNU_SOURCE
3919 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3920 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3921 LIBSUF="_s.a"
3922 SLIBPREF=""
3923 SLIBSUF=".dll"
3924 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3925 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3926 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3927 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3928 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3929 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3930 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3931 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3932 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3933 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3934 enable dos_paths
3935 ;;
3936 gnu/kfreebsd)
3937 add_cppflags -D_BSD_SOURCE
3938 ;;
3939 gnu)
3940 ;;
3941 qnx)
3942 add_cppflags -D_QNX_SOURCE
3943 network_extralibs="-lsocket"
3944 ;;
3945 symbian)
3946 SLIBSUF=".dll"
3947 enable dos_paths
3948 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3949 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3950 add_ldflags -Wl,--target1-abs,--no-undefined \
3951 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3952 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3953 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3954 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3955 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3956 ;;
3957 osf1)
3958 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3959 ;;
3960 minix)
3961 ;;
3962 plan9)
3963 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3964 -D_REENTRANT_SOURCE \
3965 -D_RESEARCH_SOURCE \
3966 -DFD_SETSIZE=96 \
3967 -DHAVE_SOCK_OPTS
3968 add_compat strtod.o strtod=avpriv_strtod
3969 network_extralibs='-lbsd'
3970 exeobjs=compat/plan9/main.o
3971 cp_f='cp'
3972 ;;
3973 none)
3974 ;;
3975 *)
3976 die "Unknown OS '$target_os'."
3977 ;;
3978 esac
3979
3980 # determine libc flavour
3981
3982 probe_libc(){
3983 pfx=$1
3984 pfx_no_=${pfx%_}
3985 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3986 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3987 eval ${pfx}libc_type=uclibc
3988 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3989 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3990 eval ${pfx}libc_type=glibc
3991 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3992 # MinGW headers can be installed on Cygwin, so check for newlib first.
3993 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3994 eval ${pfx}libc_type=newlib
3995 add_${pfx}cppflags -U__STRICT_ANSI__
3996 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3997 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3998 eval ${pfx}libc_type=mingw64
3999 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4000 eval test \$${pfx_no_}cc_type = "gcc" &&
4001 add_${pfx}cppflags -D__printf__=__gnu_printf__
4002 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4003 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4004 eval ${pfx}libc_type=mingw32
4005 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4006 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4007 die "ERROR: MinGW32 runtime version must be >= 3.15."
4008 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4009 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4010 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4011 eval test \$${pfx_no_}cc_type = "gcc" &&
4012 add_${pfx}cppflags -D__printf__=__gnu_printf__
4013 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4014 eval ${pfx}libc_type=msvcrt
4015 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4016 if [ "$pfx" = host_ ]; then
4017 add_host_cppflags -Dsnprintf=_snprintf
4018 else
4019 add_compat strtod.o strtod=avpriv_strtod
4020 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4021 _snprintf=avpriv_snprintf \
4022 vsnprintf=avpriv_vsnprintf
4023 fi
4024 fi
4025 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4026 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4027 # 0x601 by default unless something else is set by the user.
4028 # This can easily lead to us detecting functions only present
4029 # in such new versions and producing binaries requiring windows 7.0.
4030 # Therefore explicitly set the default to XP unless the user has
4031 # set something else on the command line.
4032 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4033 # family. For these cases, configure is free to use any functions
4034 # found in the SDK headers by default. (Alternatively, we could force
4035 # _WIN32_WINNT to 0x0602 in that case.)
4036 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4037 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4038 #ifdef WINAPI_FAMILY
4039 #include <winapifamily.h>
4040 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4041 #error not desktop
4042 #endif
4043 #endif
4044 EOF
4045 if [ "$pfx" = "" ]; then
4046 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4047 fi
4048 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4049 eval ${pfx}libc_type=klibc
4050 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4051 eval ${pfx}libc_type=bionic
4052 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4053 eval ${pfx}libc_type=solaris
4054 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4055 else
4056 eval ${pfx}libc_type=default
4057 add_${pfx}cppflags -D_DEFAULT_SOURCE
4058 fi
4059 }
4060
4061 probe_libc
4062 test -n "$libc_type" && enable libc_$libc_type
4063 probe_libc host_
4064 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4065
4066 case $libc_type in
4067 bionic)
4068 add_compat strtod.o strtod=avpriv_strtod
4069 ;;
4070 esac
4071
4072 # hacks for compiler/libc/os combinations
4073
4074 if enabled_all tms470 libc_glibc; then
4075 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4076 add_cppflags -D__USER_LABEL_PREFIX__=
4077 add_cppflags -D__builtin_memset=memset
4078 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4079 add_cflags -pds=48 # incompatible redefinition of macro
4080 fi
4081
4082 if enabled_all ccc libc_glibc; then
4083 add_ldflags -Wl,-z,now # calls to libots crash without this
4084 fi
4085
4086 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4087 add_cppflags '-I\$(SRC_PATH)/compat/float'
4088
4089 esc(){
4090 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4091 }
4092
4093 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4094
4095 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4096
4097 set_default $PATHS_LIST
4098 set_default nm
4099
4100 # we need to build at least one lib type
4101 if ! enabled_any static shared; then
4102 cat <<EOF
4103 At least one library type must be built.
4104 Specify --enable-static to build the static libraries or --enable-shared to
4105 build the shared libraries as well. To only build the shared libraries specify
4106 --disable-static in addition to --enable-shared.
4107 EOF
4108 exit 1
4109 fi
4110
4111 die_license_disabled() {
4112 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4113 }
4114
4115 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4116 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4117 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4118
4119 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4120
4121 disabled optimizations || check_cflags -fomit-frame-pointer
4122
4123 enable_weak_pic() {
4124 disabled pic && return
4125 enable pic
4126 add_cppflags -DPIC
4127 case "$target_os" in
4128 mingw*|cygwin*)
4129 ;;
4130 *)
4131 add_cflags -fPIC
4132 ;;
4133 esac
4134 add_asflags -fPIC
4135 }
4136
4137 enabled pic && enable_weak_pic
4138
4139 check_cc <<EOF || die "Symbol mangling check failed."
4140 int ff_extern;
4141 EOF
4142 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4143 extern_prefix=${sym%%ff_extern*}
4144
4145 check_cc <<EOF && enable_weak inline_asm
4146 void foo(void) { __asm__ volatile ("" ::); }
4147 EOF
4148
4149 _restrict=
4150 for restrict_keyword in restrict __restrict__ __restrict; do
4151 check_cc <<EOF && _restrict=$restrict_keyword && break
4152 void foo(char * $restrict_keyword p);
4153 EOF
4154 done
4155
4156 check_cc <<EOF && enable pragma_deprecated
4157 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4158 EOF
4159
4160 check_cc <<EOF && enable attribute_packed
4161 struct { int x; } __attribute__((packed)) x;
4162 EOF
4163
4164 check_cc <<EOF && enable attribute_may_alias
4165 union { int x; } __attribute__((may_alias)) x;
4166 EOF
4167
4168 check_cc <<EOF || die "endian test failed"
4169 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4170 EOF
4171 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4172
4173 check_gas() {
4174 log "check_gas using '$as' as AS"
4175 # :vararg is used on aarch64, arm and ppc altivec
4176 check_as <<EOF || return 1
4177 .macro m n, y:vararg=0
4178 \n: .int \y
4179 .endm
4180 m x
4181 EOF
4182 # .altmacro is only used in arm asm
4183 ! enabled arm || check_as <<EOF || return 1
4184 .altmacro
4185 EOF
4186 enable gnu_as
4187 return 0
4188 }
4189
4190 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4191 nogas=:
4192 enabled_any arm aarch64 && nogas=die
4193 enabled_all ppc altivec && nogas=warn
4194 as_noop=-v
4195
4196 case $as_type in
4197 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4198 gcc) gaspp_as_type=gas ;;
4199 *) gaspp_as_type=$as_type ;;
4200 esac
4201
4202 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4203
4204 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4205 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4206
4207 if ! check_gas ; then
4208 as=${gas:=$as}
4209 check_gas || \
4210 $nogas "GNU assembler not found, install/update gas-preprocessor"
4211 fi
4212
4213 check_as <<EOF && enable as_func
4214 .func test
4215 .endfunc
4216 EOF
4217 fi
4218
4219 check_inline_asm inline_asm_labels '"1:\n"'
4220
4221 if enabled aarch64; then
4222 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4223 # internal assembler in clang 3.3 does not support this instruction
4224 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4225 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4226
4227 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4228
4229 elif enabled alpha; then
4230
4231 check_cflags -mieee
4232
4233 elif enabled arm; then
4234
4235 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4236 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4237 enabled thumb && check_cflags -mthumb || check_cflags -marm
4238
4239 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4240 enable vfp_args
4241 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4242 enable vfp_args
4243 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4244 case "${cross_prefix:-$cc}" in
4245 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4246 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4247 __asm__ (".eabi_attribute 28, 1");
4248 int main(void) { return 0; }
4249 EOF
4250 esac
4251 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4252 fi
4253
4254 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4255 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4256 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4257 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4258 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4259 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4260
4261 [ $target_os = linux ] || [ $target_os = android ] ||
4262 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4263 $ARCH_EXT_LIST_ARM
4264
4265 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4266
4267 check_as <<EOF && enable as_dn_directive
4268 ra .dn d0.i16
4269 .unreq ra
4270 EOF
4271 check_as <<EOF && enable as_fpu_directive
4272 .fpu neon
4273 EOF
4274
4275 # llvm's integrated assembler supports .object_arch from llvm 3.5
4276 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4277 .object_arch armv4
4278 EOF
4279
4280 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4281
4282 elif enabled mips; then
4283
4284 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4285
4286 # make sure that only an instruction set is enabled
4287 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4288
4289 if enabled mips64; then
4290 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4291 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4292 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4293 else
4294 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4295 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4296 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4297 fi
4298
4299 elif enabled parisc; then
4300
4301 if enabled gcc; then
4302 case $($cc -dumpversion) in
4303 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4304 esac
4305 fi
4306
4307 elif enabled ppc; then
4308
4309 enable local_aligned_8 local_aligned_16 local_aligned_32
4310
4311 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4312 check_inline_asm ibm_asm '"add 0, 0, 0"'
4313 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4314 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4315
4316 # AltiVec flags: The FSF version of GCC differs from the Apple version
4317 if enabled altivec; then
4318 check_cflags -maltivec -mabi=altivec &&
4319 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4320 check_cflags -faltivec
4321
4322 # check if our compiler supports Motorola AltiVec C API
4323 check_cc <<EOF || disable altivec
4324 $inc_altivec_h
4325 int main(void) {
4326 vector signed int v1 = (vector signed int) { 0 };
4327 vector signed int v2 = (vector signed int) { 1 };
4328 v1 = vec_add(v1, v2);
4329 return 0;
4330 }
4331 EOF
4332
4333 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4334 fi
4335
4336 if enabled vsx; then
4337 check_cflags -mvsx &&
4338 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4339 fi
4340
4341 if enabled power8; then
4342 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4343 fi
4344
4345 elif enabled x86; then
4346
4347 check_builtin rdtsc intrin.h "__rdtsc()"
4348 check_builtin mm_empty mmintrin.h "_mm_empty()"
4349
4350 enable local_aligned_8 local_aligned_16 local_aligned_32
4351
4352 # check whether EBP is available on x86
4353 # As 'i' is stored on the stack, this program will crash
4354 # if the base pointer is used to access it because the
4355 # base pointer is cleared in the inline assembly code.
4356 check_exec_crash <<EOF && enable ebp_available
4357 volatile int i=0;
4358 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4359 return i;
4360 EOF
4361
4362 # check whether EBX is available on x86
4363 check_inline_asm ebx_available '""::"b"(0)' &&
4364 check_inline_asm ebx_available '"":::"%ebx"'
4365
4366 # check whether xmm clobbers are supported
4367 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4368
4369 # check whether binutils is new enough to compile SSSE3/MMXEXT
4370 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4371 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4372
4373 if ! disabled_any asm mmx yasm; then
4374 if check_cmd $yasmexe --version; then
4375 enabled x86_64 && yasm_extra="-m amd64"
4376 yasm_debug="-g dwarf2"
4377 elif check_cmd nasm -v; then