configure: Set __MSVCRT_VERSION__to 0x0700 for MinGW
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Individual component options:
136 --disable-everything disable all components listed below
137 --disable-encoder=NAME disable encoder NAME
138 --enable-encoder=NAME enable encoder NAME
139 --disable-encoders disable all encoders
140 --disable-decoder=NAME disable decoder NAME
141 --enable-decoder=NAME enable decoder NAME
142 --disable-decoders disable all decoders
143 --disable-hwaccel=NAME disable hwaccel NAME
144 --enable-hwaccel=NAME enable hwaccel NAME
145 --disable-hwaccels disable all hwaccels
146 --disable-muxer=NAME disable muxer NAME
147 --enable-muxer=NAME enable muxer NAME
148 --disable-muxers disable all muxers
149 --disable-demuxer=NAME disable demuxer NAME
150 --enable-demuxer=NAME enable demuxer NAME
151 --disable-demuxers disable all demuxers
152 --enable-parser=NAME enable parser NAME
153 --disable-parser=NAME disable parser NAME
154 --disable-parsers disable all parsers
155 --enable-bsf=NAME enable bitstream filter NAME
156 --disable-bsf=NAME disable bitstream filter NAME
157 --disable-bsfs disable all bitstream filters
158 --enable-protocol=NAME enable protocol NAME
159 --disable-protocol=NAME disable protocol NAME
160 --disable-protocols disable all protocols
161 --enable-indev=NAME enable input device NAME
162 --disable-indev=NAME disable input device NAME
163 --disable-indevs disable input devices
164 --enable-outdev=NAME enable output device NAME
165 --disable-outdev=NAME disable output device NAME
166 --disable-outdevs disable output devices
167 --disable-devices disable all devices
168 --enable-filter=NAME enable filter NAME
169 --disable-filter=NAME disable filter NAME
170 --disable-filters disable all filters
171
172 External library support:
173
174 Using any of the following switches will allow Libav to link to the
175 corresponding external library. All the components depending on that library
176 will become enabled, if all their other dependencies are met and they are not
177 explicitly disabled. E.g. --enable-libwavpack will enable linking to
178 libwavpack and allow the libwavpack encoder to be built, unless it is
179 specifically disabled with --disable-encoder=libwavpack.
180
181 Note that only the system libraries are auto-detected. All the other external
182 libraries must be explicitly enabled.
183
184 Also note that the following help text describes the purpose of the libraries
185 themselves, not all their features will necessarily be usable by Libav.
186
187 --enable-avisynth video frameserver
188 --enable-bzlib bzip2 compression [autodetect]
189 --enable-frei0r video filtering plugins
190 --enable-gnutls crypto
191 --enable-libbs2b Bauer stereophonic-to-binaural DSP
192 --enable-libcdio audio CD input
193 --enable-libdc1394 IEEE 1394/Firewire camera input
194 --enable-libdcadec DCA audio decoding
195 --enable-libfaac AAC audio encoding
196 --enable-libfdk-aac AAC audio encoding/decoding
197 --enable-libfontconfig font configuration and management
198 --enable-libfreetype font rendering
199 --enable-libgsm GSM audio encoding/decoding
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libkvazaar HEVC video encoding
202 --enable-libmp3lame MP3 audio encoding
203 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
204 --enable-libopencore-amrwb AMR-WB audio decoding
205 --enable-libopencv computer vision
206 --enable-libopenh264 H.264 video encoding/decoding
207 --enable-libopenjpeg JPEG 2000 image encoding/decoding
208 --enable-libopus Opus audio encoding/decoding
209 --enable-libpulse Pulseaudio sound server
210 --enable-librtmp RTMP streaming
211 --enable-libschroedinger Dirac video encoding/decoding
212 --enable-libsnappy snappy compression
213 --enable-libspeex Speex audio encoding/decoding
214 --enable-libtheora Theora video encoding/decoding
215 --enable-libtwolame MP2 audio encoding
216 --enable-libvo-aacenc AAC audio encoding
217 --enable-libvo-amrwbenc AMR-WB audio encoding
218 --enable-libvorbis Vorbis audio encoding/decoding
219 --enable-libvpx VP* video encoding/decoding
220 --enable-libwavpack Wavpack audio encoding/decoding
221 --enable-libwebp WebP image encoding/decoding
222 --enable-libx264 H.264 video encoding
223 --enable-libx265 HEVC video encoding
224 --enable-libxavs Chinese AVS video encoding
225 --enable-libxcb X window system protocol communication
226 --enable-libxcb-shm X11 shm communication [auto]
227 --enable-libxcb-xfixes X11 mouse rendering [auto]
228 --enable-libxvid MPEG-4 ASP video encoding
229 --enable-openssl crypto
230 --enable-zlib compression [autodetect]
231
232 The following libraries provide various hardware acceleration features:
233 --enable-cuda Nvidia CUDA (dynamically linked)
234 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
235 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
236 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
237 --enable-libnpp Nvidia CUDA processing
238 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
239 --enable-nvenc Nvidia video encoding
240 --enable-omx OpenMAX IL
241 --enable-omx-rpi OpenMAX IL for Raspberry Pi
242 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
243 --enable-vda Apple Video Decode Acceleration [auto]
244 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
245
246 Toolchain options:
247 --arch=ARCH select architecture [$arch]
248 --cpu=CPU select the minimum required CPU (affects
249 instruction selection, may crash on older CPUs)
250 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
251 --enable-cross-compile assume a cross-compiler is used
252 --sysroot=PATH root of cross-build tree
253 --sysinclude=PATH location of cross-build system headers
254 --target-os=OS compiler targets OS [$target_os]
255 --target-exec=CMD command to run executables on target
256 --target-path=DIR path to view of build directory on target
257 --target-samples=DIR path to samples directory on target
258 --toolchain=NAME set tool defaults according to NAME
259 --nm=NM use nm tool
260 --ar=AR use archive tool AR [$ar_default]
261 --as=AS use assembler AS [$as_default]
262 --cc=CC use C compiler CC [$cc_default]
263 --objcc=OCC use ObjC compiler OCC [$cc_default]
264 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
265 --ld=LD use linker LD
266 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
267 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
268 --host-cc=HOSTCC use host C compiler HOSTCC
269 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
270 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
271 --host-ld=HOSTLD use host linker HOSTLD
272 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
273 --host-libs=HLIBS use libs HLIBS when linking for host
274 --host-os=OS compiler host OS [$target_os]
275 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
276 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
277 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
278 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
279 --extra-libs=ELIBS add ELIBS [$ELIBS]
280 --extra-version=STRING version string suffix []
281 --optflags=OPTFLAGS override optimization-related compiler flags
282 --build-suffix=SUFFIX library name suffix []
283 --enable-pic build position-independent code
284 --enable-thumb compile for Thumb instruction set
285 --enable-lto use link-time optimization
286 --env="ENV=override" override the environment variables
287
288 Advanced options (experts only):
289 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
290 --custom-allocator=NAME use a supported custom allocator
291 --disable-symver disable symbol versioning
292 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
293 --disable-safe-bitstream-reader
294 disable buffer boundary checking in bitreaders
295 (faster, but may crash)
296 --enable-memalign-hack emulate memalign, interferes with memory debuggers
297 --enable-sram allow use of on-chip SRAM
298
299 Optimization options (experts only):
300 --disable-asm disable all assembly optimizations
301 --disable-altivec disable AltiVec optimizations
302 --disable-vsx disable VSX optimizations
303 --disable-power8 disable POWER8 optimizations
304 --disable-amd3dnow disable 3DNow! optimizations
305 --disable-amd3dnowext disable 3DNow! extended optimizations
306 --disable-mmx disable MMX optimizations
307 --disable-mmxext disable MMXEXT optimizations
308 --disable-sse disable SSE optimizations
309 --disable-sse2 disable SSE2 optimizations
310 --disable-sse3 disable SSE3 optimizations
311 --disable-ssse3 disable SSSE3 optimizations
312 --disable-sse4 disable SSE4 optimizations
313 --disable-sse42 disable SSE4.2 optimizations
314 --disable-avx disable AVX optimizations
315 --disable-xop disable XOP optimizations
316 --disable-fma3 disable FMA3 optimizations
317 --disable-fma4 disable FMA4 optimizations
318 --disable-avx2 disable AVX2 optimizations
319 --disable-armv5te disable armv5te optimizations
320 --disable-armv6 disable armv6 optimizations
321 --disable-armv6t2 disable armv6t2 optimizations
322 --disable-vfp disable VFP optimizations
323 --disable-neon disable NEON optimizations
324 --disable-inline-asm disable use of inline assembly
325 --disable-yasm disable use of nasm/yasm assembly
326
327 Developer options (useful when working on Libav itself):
328 --disable-debug disable debugging symbols
329 --enable-debug=LEVEL set the debug level [$debuglevel]
330 --disable-optimizations disable compiler optimizations
331 --enable-extra-warnings enable more compiler warnings
332 --samples=PATH location of test samples for FATE, if not set use
333 \$LIBAV_SAMPLES at make invocation time.
334 --enable-neon-clobber-test check NEON registers for clobbering (should be
335 used only for debugging purposes)
336 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
337 should be used only for debugging purposes)
338 --enable-random randomly enable/disable components
339 --disable-random
340 --enable-random=LIST randomly enable/disable specific components or
341 --disable-random=LIST component groups. LIST is a comma-separated list
342 of NAME[:PROB] entries where NAME is a component
343 (group) and PROB the probability associated with
344 NAME (default 0.5).
345 --random-seed=VALUE seed value for --enable/disable-random
346 --disable-valgrind-backtrace do not print a backtrace under Valgrind
347 (only applies to --disable-optimizations builds)
348
349 NOTE: Object files are built at the place where configure is launched.
350 EOF
351 exit 0
352 }
353
354 quotes='""'
355
356 log(){
357 echo "$@" >> $logfile
358 }
359
360 log_file(){
361 log BEGIN $1
362 i=1
363 while read line; do
364 printf '%5s %s\n' "${i}" "${line}"
365 i=$(($i+1))
366 done < $1 >> $logfile
367 log END $1
368 }
369
370 echolog(){
371 log "$@"
372 echo "$@"
373 }
374
375 warn(){
376 log "WARNING: $*"
377 WARNINGS="${WARNINGS}WARNING: $*\n"
378 }
379
380 die(){
381 echolog "$@"
382 cat <<EOF
383
384 If you think configure made a mistake, make sure you are using the latest
385 version from Git. If the latest version fails, report the problem to the
386 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
387 EOF
388 if disabled logging; then
389 cat <<EOF
390 Rerun configure with logging enabled (do not use --disable-logging), and
391 include the log this produces with your report.
392 EOF
393 else
394 cat <<EOF
395 Include the log file "$logfile" produced by configure as this will help
396 solving the problem.
397 EOF
398 fi
399 exit 1
400 }
401
402 # Avoid locale weirdness, besides we really just want to translate ASCII.
403 toupper(){
404 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
405 }
406
407 tolower(){
408 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
409 }
410
411 c_escape(){
412 echo "$*" | sed 's/["\\]/\\\0/g'
413 }
414
415 sh_quote(){
416 v=$(echo "$1" | sed "s/'/'\\\\''/g")
417 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
418 echo "$v"
419 }
420
421 cleanws(){
422 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
423 }
424
425 filter(){
426 pat=$1
427 shift
428 for v; do
429 eval "case $v in $pat) echo $v ;; esac"
430 done
431 }
432
433 filter_out(){
434 pat=$1
435 shift
436 for v; do
437 eval "case $v in $pat) ;; *) echo $v ;; esac"
438 done
439 }
440
441 map(){
442 m=$1
443 shift
444 for v; do eval $m; done
445 }
446
447 add_suffix(){
448 suffix=$1
449 shift
450 for v; do echo ${v}${suffix}; done
451 }
452
453 set_all(){
454 value=$1
455 shift
456 for var in $*; do
457 eval $var=$value
458 done
459 }
460
461 set_weak(){
462 value=$1
463 shift
464 for var; do
465 eval : \${$var:=$value}
466 done
467 }
468
469 sanitize_var_name(){
470 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
471 }
472
473 set_safe(){
474 var=$1
475 shift
476 eval $(sanitize_var_name "$var")='$*'
477 }
478
479 get_safe(){
480 eval echo \$$(sanitize_var_name "$1")
481 }
482
483 pushvar(){
484 for pvar in $*; do
485 eval level=\${${pvar}_level:=0}
486 eval ${pvar}_${level}="\$$pvar"
487 eval ${pvar}_level=$(($level+1))
488 done
489 }
490
491 popvar(){
492 for pvar in $*; do
493 eval level=\${${pvar}_level:-0}
494 test $level = 0 && continue
495 eval level=$(($level-1))
496 eval $pvar="\${${pvar}_${level}}"
497 eval ${pvar}_level=$level
498 eval unset ${pvar}_${level}
499 done
500 }
501
502 enable(){
503 set_all yes $*
504 }
505
506 disable(){
507 set_all no $*
508 }
509
510 enable_weak(){
511 set_weak yes $*
512 }
513
514 disable_weak(){
515 set_weak no $*
516 }
517
518 enable_safe(){
519 for var; do
520 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
521 done
522 }
523
524 disable_safe(){
525 for var; do
526 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
527 done
528 }
529
530 do_enable_deep(){
531 for var; do
532 enabled $var && continue
533 eval sel="\$${var}_select"
534 eval sgs="\$${var}_suggest"
535 pushvar var sgs
536 enable_deep $sel
537 popvar sgs
538 enable_deep_weak $sgs
539 popvar var
540 done
541 }
542
543 enable_deep(){
544 do_enable_deep $*
545 enable $*
546 }
547
548 enable_deep_weak(){
549 for var; do
550 disabled $var && continue
551 pushvar var
552 do_enable_deep $var
553 popvar var
554 enable_weak $var
555 done
556 }
557
558 enabled(){
559 test "${1#!}" = "$1" && op== || op=!=
560 eval test "x\$${1#!}" $op "xyes"
561 }
562
563 disabled(){
564 test "${1#!}" = "$1" && op== || op=!=
565 eval test "x\$${1#!}" $op "xno"
566 }
567
568 enabled_all(){
569 for opt; do
570 enabled $opt || return 1
571 done
572 }
573
574 disabled_all(){
575 for opt; do
576 disabled $opt || return 1
577 done
578 }
579
580 enabled_any(){
581 for opt; do
582 enabled $opt && return 0
583 done
584 }
585
586 disabled_any(){
587 for opt; do
588 disabled $opt && return 0
589 done
590 return 1
591 }
592
593 set_default(){
594 for opt; do
595 eval : \${$opt:=\$${opt}_default}
596 done
597 }
598
599 is_in(){
600 value=$1
601 shift
602 for var in $*; do
603 [ $var = $value ] && return 0
604 done
605 return 1
606 }
607
608 do_check_deps(){
609 for cfg; do
610 cfg="${cfg#!}"
611 enabled ${cfg}_checking && die "Circular dependency for $cfg."
612 disabled ${cfg}_checking && continue
613 enable ${cfg}_checking
614 append allopts $cfg
615
616 eval dep_all="\$${cfg}_deps"
617 eval dep_any="\$${cfg}_deps_any"
618 eval dep_sel="\$${cfg}_select"
619 eval dep_sgs="\$${cfg}_suggest"
620 eval dep_ifa="\$${cfg}_if"
621 eval dep_ifn="\$${cfg}_if_any"
622
623 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
624 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
625 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626
627 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
628 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
629 enabled_all $dep_all || disable $cfg
630 enabled_any $dep_any || disable $cfg
631 disabled_any $dep_sel && disable $cfg
632
633 if enabled $cfg; then
634 enable_deep $dep_sel
635 enable_deep_weak $dep_sgs
636 fi
637
638 disable ${cfg}_checking
639 done
640 }
641
642 check_deps(){
643 unset allopts
644
645 do_check_deps "$@"
646
647 for cfg in $allopts; do
648 enabled $cfg || continue
649 eval dep_extralibs="\$${cfg}_extralibs"
650 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
651 done
652 }
653
654 print_config(){
655 pfx=$1
656 files=$2
657 shift 2
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
660 {
661 c = \"$pfx\" toupper(\$1);
662 v = \$2;
663 sub(/yes/, 1, v);
664 sub(/no/, 0, v);
665 for (f in files) {
666 file = files[f];
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
674 }
675 }
676 }"
677 }
678
679 print_enabled(){
680 suf=$1
681 shift
682 for v; do
683 enabled $v && printf "%s\n" ${v%$suf}
684 done
685 }
686
687 append(){
688 var=$1
689 shift
690 eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694 var=$1
695 shift
696 eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700 var=$1
701 uniq_list=""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
704 done
705 eval "$var=\"${uniq_list}\""
706 }
707
708 add_cppflags(){
709 append CPPFLAGS "$@"
710 }
711
712 add_cflags(){
713 append CFLAGS $($cflags_filter "$@")
714 }
715
716 add_asflags(){
717 append ASFLAGS $($asflags_filter "$@")
718 }
719
720 add_objcflags(){
721 append OBJCFLAGS $($objcflags_filter "$@")
722 }
723
724 add_ldflags(){
725 append LDFLAGS $($ldflags_filter "$@")
726 }
727
728 add_ldexeflags(){
729 append LDEXEFLAGS $($ldflags_filter "$@")
730 }
731
732 add_stripflags(){
733 append STRIPFLAGS "$@"
734 }
735
736 add_extralibs(){
737 prepend extralibs $($ldflags_filter "$@")
738 }
739
740 add_host_cppflags(){
741 append host_cppflags "$@"
742 }
743
744 add_host_cflags(){
745 append host_cflags $($host_cflags_filter "$@")
746 }
747
748 add_host_ldflags(){
749 append host_ldflags $($host_ldflags_filter "$@")
750 }
751
752 add_compat(){
753 append compat_objs $1
754 shift
755 map 'add_cppflags -D$v' "$@"
756 }
757
758 check_cmd(){
759 log "$@"
760 "$@" >> $logfile 2>&1
761 }
762
763 cc_o(){
764 eval printf '%s\\n' $CC_O
765 }
766
767 cc_e(){
768 eval printf '%s\\n' $CC_E
769 }
770
771 check_cc(){
772 log check_cc "$@"
773 cat > $TMPC
774 log_file $TMPC
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
776 }
777
778 check_objcc(){
779 log check_objcc "$@"
780 cat > $TMPC
781 log_file $TMPC
782 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
783 }
784
785 check_cpp(){
786 log check_cpp "$@"
787 cat > $TMPC
788 log_file $TMPC
789 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
790 }
791
792 as_o(){
793 eval printf '%s\\n' $AS_O
794 }
795
796 check_as(){
797 log check_as "$@"
798 cat > $TMPS
799 log_file $TMPS
800 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
801 }
802
803 check_inline_asm(){
804 log check_inline_asm "$@"
805 name="$1"
806 code="$2"
807 shift 2
808 disable $name
809 check_cc "$@" <<EOF && enable $name
810 void foo(void){ __asm__ volatile($code); }
811 EOF
812 }
813
814 check_insn(){
815 log check_insn "$@"
816 check_inline_asm ${1}_inline "\"$2\""
817 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
818 }
819
820 check_yasm(){
821 log check_yasm "$@"
822 echo "$1" > $TMPS
823 log_file $TMPS
824 shift 1
825 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
826 }
827
828 ld_o(){
829 eval printf '%s\\n' $LD_O
830 }
831
832 check_ld(){
833 log check_ld "$@"
834 flags=$(filter_out '-l*' "$@")
835 libs=$(filter '-l*' "$@")
836 check_cc $($cflags_filter $flags) || return
837 flags=$($ldflags_filter $flags)
838 libs=$($ldflags_filter $libs)
839 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
840 }
841
842 print_include(){
843 hdr=$1
844 test "${hdr%.h}" = "${hdr}" &&
845 echo "#include $hdr" ||
846 echo "#include <$hdr>"
847 }
848
849 check_code(){
850 log check_code "$@"
851 check=$1
852 headers=$2
853 code=$3
854 shift 3
855 {
856 for hdr in $headers; do
857 print_include $hdr
858 done
859 echo "int main(void) { $code; return 0; }"
860 } | check_$check "$@"
861 }
862
863 check_cppflags(){
864 log check_cppflags "$@"
865 check_cc "$@" <<EOF && append CPPFLAGS "$@"
866 int x;
867 EOF
868 }
869
870 test_cflags(){
871 log test_cflags "$@"
872 set -- $($cflags_filter "$@")
873 check_cc "$@" <<EOF
874 int x;
875 EOF
876 }
877
878 check_cflags(){
879 log check_cflags "$@"
880 test_cflags "$@" && add_cflags "$@"
881 }
882
883 test_objcflags(){
884 log test_cflags "$@"
885 set -- $($cflags_filter "$@")
886 check_objcc "$@" <<EOF
887 int x;
888 EOF
889 }
890
891 check_objcflags(){
892 log check_cflags "$@"
893 test_objcflags "$@" && add_objcflags "$@"
894 }
895
896 test_ldflags(){
897 log test_ldflags "$@"
898 check_ld "$@" <<EOF
899 int main(void){ return 0; }
900 EOF
901 }
902
903 check_ldflags(){
904 log check_ldflags "$@"
905 test_ldflags "$@" && add_ldflags "$@"
906 }
907
908 test_stripflags(){
909 log test_stripflags "$@"
910 # call check_cc to get a fresh TMPO
911 check_cc <<EOF
912 int main(void) { return 0; }
913 EOF
914 check_cmd $strip $STRIPFLAGS "$@" $TMPO
915 }
916
917 check_stripflags(){
918 log check_stripflags "$@"
919 test_stripflags "$@" && add_stripflags "$@"
920 }
921
922 check_header(){
923 log check_header "$@"
924 header=$1
925 shift
926 disable_safe $header
927 check_cpp "$@" <<EOF && enable_safe $header
928 #include <$header>
929 int x;
930 EOF
931 }
932
933 check_func(){
934 log check_func "$@"
935 func=$1
936 shift
937 disable $func
938 check_ld "$@" <<EOF && enable $func
939 extern int $func();
940 int main(void){ $func(); }
941 EOF
942 }
943
944 check_mathfunc(){
945 log check_mathfunc "$@"
946 func=$1
947 narg=$2
948 shift 2
949 test $narg = 2 && args="f, g" || args="f"
950 disable $func
951 check_ld "$@" <<EOF && enable $func
952 #include <math.h>
953 float foo(float f, float g) { return $func($args); }
954 int main(void){ return 0; }
955 EOF
956 }
957
958 check_func_headers(){
959 log check_func_headers "$@"
960 headers=$1
961 funcs=$2
962 shift 2
963 {
964 for hdr in $headers; do
965 print_include $hdr
966 done
967 for func in $funcs; do
968 echo "long check_$func(void) { return (long) $func; }"
969 done
970 echo "int main(void) { return 0; }"
971 } | check_ld "$@" && enable $funcs && enable_safe $headers
972 }
973
974 check_cpp_condition(){
975 log check_cpp_condition "$@"
976 header=$1
977 condition=$2
978 shift 2
979 check_cpp "$@" <<EOF
980 #include <$header>
981 #if !($condition)
982 #error "unsatisfied condition: $condition"
983 #endif
984 EOF
985 }
986
987 check_lib(){
988 log check_lib "$@"
989 header="$1"
990 func="$2"
991 shift 2
992 check_header $header && check_func $func "$@" && add_extralibs "$@"
993 }
994
995 check_lib2(){
996 log check_lib2 "$@"
997 headers="$1"
998 funcs="$2"
999 shift 2
1000 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1001 }
1002
1003 check_pkg_config(){
1004 log check_pkg_config "$@"
1005 pkg="$1"
1006 headers="$2"
1007 funcs="$3"
1008 shift 3
1009 check_cmd $pkg_config --exists --print-errors $pkg || return
1010 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1011 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1012 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1013 set_safe "${pkg}_cflags" $pkg_cflags &&
1014 set_safe "${pkg}_libs" $pkg_libs
1015 }
1016
1017 check_exec(){
1018 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1019 }
1020
1021 check_exec_crash(){
1022 code=$(cat)
1023
1024 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1025 # are safe but may not be available everywhere. Thus we use
1026 # raise(SIGTERM) instead. The check is run in a subshell so we
1027 # can redirect the "Terminated" message from the shell. SIGBUS
1028 # is not defined by standard C so it is used conditionally.
1029
1030 (check_exec "$@") >> $logfile 2>&1 <<EOF
1031 #include <signal.h>
1032 static void sighandler(int sig){
1033 raise(SIGTERM);
1034 }
1035 int foo(void){
1036 $code
1037 }
1038 int (*func_ptr)(void) = foo;
1039 int main(void){
1040 signal(SIGILL, sighandler);
1041 signal(SIGFPE, sighandler);
1042 signal(SIGSEGV, sighandler);
1043 #ifdef SIGBUS
1044 signal(SIGBUS, sighandler);
1045 #endif
1046 return func_ptr();
1047 }
1048 EOF
1049 }
1050
1051 check_type(){
1052 log check_type "$@"
1053 headers=$1
1054 type=$2
1055 shift 2
1056 disable_safe "$type"
1057 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1058 }
1059
1060 check_struct(){
1061 log check_struct "$@"
1062 headers=$1
1063 struct=$2
1064 member=$3
1065 shift 3
1066 disable_safe "${struct}_${member}"
1067 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1068 enable_safe "${struct}_${member}"
1069 }
1070
1071 check_builtin(){
1072 log check_builtin "$@"
1073 name=$1
1074 headers=$2
1075 builtin=$3
1076 shift 3
1077 disable "$name"
1078 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1079 }
1080
1081 check_compile_assert(){
1082 log check_compile_assert "$@"
1083 name=$1
1084 headers=$2
1085 condition=$3
1086 shift 3
1087 disable "$name"
1088 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1089 }
1090
1091 require(){
1092 name="$1"
1093 header="$2"
1094 func="$3"
1095 shift 3
1096 check_lib $header $func "$@" || die "ERROR: $name not found"
1097 }
1098
1099 require2(){
1100 name="$1"
1101 headers="$2"
1102 func="$3"
1103 shift 3
1104 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1105 }
1106
1107 require_pkg_config(){
1108 pkg="$1"
1109 check_pkg_config "$@" || die "ERROR: $pkg not found"
1110 add_cflags $(get_safe "${pkg}_cflags")
1111 add_extralibs $(get_safe "${pkg}_libs")
1112 }
1113
1114 hostcc_e(){
1115 eval printf '%s\\n' $HOSTCC_E
1116 }
1117
1118 hostcc_o(){
1119 eval printf '%s\\n' $HOSTCC_O
1120 }
1121
1122 check_host_cc(){
1123 log check_host_cc "$@"
1124 cat > $TMPC
1125 log_file $TMPC
1126 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1127 }
1128
1129 check_host_cpp(){
1130 log check_host_cpp "$@"
1131 cat > $TMPC
1132 log_file $TMPC
1133 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1134 }
1135
1136 check_host_cppflags(){
1137 log check_host_cppflags "$@"
1138 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1139 int x;
1140 EOF
1141 }
1142
1143 check_host_cflags(){
1144 log check_host_cflags "$@"
1145 set -- $($host_cflags_filter "$@")
1146 check_host_cc "$@" <<EOF && append host_cflags "$@"
1147 int x;
1148 EOF
1149 }
1150
1151 check_host_cpp_condition(){
1152 log check_host_cpp_condition "$@"
1153 header=$1
1154 condition=$2
1155 shift 2
1156 check_host_cpp "$@" <<EOF
1157 #include <$header>
1158 #if !($condition)
1159 #error "unsatisfied condition: $condition"
1160 #endif
1161 EOF
1162 }
1163
1164 apply(){
1165 file=$1
1166 shift
1167 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1168 }
1169
1170 cp_if_changed(){
1171 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1172 mkdir -p "$(dirname $2)"
1173 $cp_f "$1" "$2"
1174 }
1175
1176 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1177 # system-dependent things.
1178
1179 AVCODEC_COMPONENTS="
1180 bsfs
1181 decoders
1182 encoders
1183 hwaccels
1184 parsers
1185 "
1186
1187 AVDEVICE_COMPONENTS="
1188 indevs
1189 outdevs
1190 "
1191 AVFILTER_COMPONENTS="
1192 filters
1193 "
1194 AVFORMAT_COMPONENTS="
1195 demuxers
1196 muxers
1197 protocols
1198 "
1199
1200 AVRESAMPLE_COMPONENTS=""
1201 AVUTIL_COMPONENTS=""
1202
1203 COMPONENT_LIST="
1204 $AVCODEC_COMPONENTS
1205 $AVDEVICE_COMPONENTS
1206 $AVFILTER_COMPONENTS
1207 $AVFORMAT_COMPONENTS
1208 $AVRESAMPLE_COMPONENTS
1209 $AVUTIL_COMPONENTS
1210 "
1211
1212 EXAMPLE_LIST="
1213 avcodec_example
1214 filter_audio_example
1215 metadata_example
1216 output_example
1217 qsvdec_example
1218 transcode_aac_example
1219 "
1220
1221 HWACCEL_LIBRARY_NONFREE_LIST="
1222 cuda
1223 libnpp
1224 "
1225 HWACCEL_LIBRARY_LIST="
1226 $HWACCEL_LIBRARY_NONFREE_LIST
1227 d3d11va
1228 dxva2
1229 libmfx
1230 mmal
1231 nvenc
1232 omx
1233 vaapi
1234 vda
1235 vdpau
1236 "
1237
1238 EXTERNAL_LIBRARY_GPL_LIST="
1239 libcdio
1240 libx264
1241 libx265
1242 libxavs
1243 libxvid
1244 "
1245
1246 EXTERNAL_LIBRARY_NONFREE_LIST="
1247 libfaac
1248 libfdk_aac
1249 openssl
1250 "
1251
1252 EXTERNAL_LIBRARY_VERSION3_LIST="
1253 libopencore_amrnb
1254 libopencore_amrwb
1255 libvo_aacenc
1256 libvo_amrwbenc
1257 "
1258
1259 EXTERNAL_LIBRARY_LIST="
1260 $EXTERNAL_LIBRARY_GPL_LIST
1261 $EXTERNAL_LIBRARY_NONFREE_LIST
1262 $EXTERNAL_LIBRARY_VERSION3_LIST
1263 avisynth
1264 bzlib
1265 frei0r
1266 gnutls
1267 libbs2b
1268 libdc1394
1269 libdcadec
1270 libfontconfig
1271 libfreetype
1272 libgsm
1273 libilbc
1274 libkvazaar
1275 libmp3lame
1276 libopencv
1277 libopenh264
1278 libopenjpeg
1279 libopus
1280 libpulse
1281 librtmp
1282 libschroedinger
1283 libsnappy
1284 libspeex
1285 libtheora
1286 libtwolame
1287 libvorbis
1288 libvpx
1289 libwavpack
1290 libwebp
1291 libxcb
1292 libxcb_shm
1293 libxcb_xfixes
1294 zlib
1295 "
1296
1297 FEATURE_LIST="
1298 gray
1299 hardcoded_tables
1300 omx_rpi
1301 runtime_cpudetect
1302 safe_bitstream_reader
1303 shared
1304 small
1305 sram
1306 static
1307 swscale_alpha
1308 "
1309
1310 LIBRARY_LIST="
1311 avcodec
1312 avdevice
1313 avfilter
1314 avformat
1315 avresample
1316 avutil
1317 swscale
1318 "
1319
1320 LICENSE_LIST="
1321 gpl
1322 nonfree
1323 version3
1324 "
1325
1326 PROGRAM_LIST="
1327 avconv
1328 avplay
1329 avprobe
1330 "
1331
1332 SUBSYSTEM_LIST="
1333 dct
1334 doc
1335 error_resilience
1336 faan
1337 fft
1338 lsp
1339 lzo
1340 mdct
1341 network
1342 rdft
1343 "
1344
1345 CONFIG_LIST="
1346 $COMPONENT_LIST
1347 $EXAMPLE_LIST
1348 $EXTERNAL_LIBRARY_LIST
1349 $HWACCEL_LIBRARY_LIST
1350 $FEATURE_LIST
1351 $LICENSE_LIST
1352 $LIBRARY_LIST
1353 $PROGRAM_LIST
1354 $SUBSYSTEM_LIST
1355 memalign_hack
1356 neon_clobber_test
1357 pic
1358 pod2man
1359 texi2html
1360 thumb
1361 valgrind_backtrace
1362 xmm_clobber_test
1363 "
1364
1365 THREADS_LIST="
1366 pthreads
1367 w32threads
1368 "
1369
1370 ATOMICS_LIST="
1371 atomics_gcc
1372 atomics_suncc
1373 atomics_win32
1374 "
1375
1376 ARCH_LIST="
1377 aarch64
1378 alpha
1379 arm
1380 avr32
1381 avr32_ap
1382 avr32_uc
1383 bfin
1384 ia64
1385 m68k
1386 mips
1387 mips64
1388 parisc
1389 ppc
1390 ppc64
1391 s390
1392 sh4
1393 sparc
1394 sparc64
1395 tilegx
1396 tilepro
1397 tomi
1398 x86
1399 x86_32
1400 x86_64
1401 "
1402
1403 ARCH_EXT_LIST_ARM="
1404 armv5te
1405 armv6
1406 armv6t2
1407 armv8
1408 neon
1409 vfp
1410 vfpv3
1411 "
1412
1413 ARCH_EXT_LIST_X86_SIMD="
1414 amd3dnow
1415 amd3dnowext
1416 avx
1417 avx2
1418 fma3
1419 fma4
1420 mmx
1421 mmxext
1422 sse
1423 sse2
1424 sse3
1425 sse4
1426 sse42
1427 ssse3
1428 xop
1429 "
1430
1431 ARCH_EXT_LIST_PPC="
1432 altivec
1433 dcbzl
1434 ldbrx
1435 power8
1436 ppc4xx
1437 vsx
1438 "
1439
1440 ARCH_EXT_LIST_X86="
1441 $ARCH_EXT_LIST_X86_SIMD
1442 cpunop
1443 i686
1444 "
1445
1446 ARCH_EXT_LIST_MIPS="
1447 loongson
1448 mips32r1
1449 mips64r1
1450 mips32r2
1451 mips64r2
1452 mips32r6
1453 mips64r6
1454 "
1455
1456 ARCH_EXT_LIST="
1457 $ARCH_EXT_LIST_ARM
1458 $ARCH_EXT_LIST_MIPS
1459 $ARCH_EXT_LIST_PPC
1460 $ARCH_EXT_LIST_X86
1461 vis
1462 "
1463
1464 ARCH_FEATURES="
1465 aligned_stack
1466 fast_64bit
1467 fast_clz
1468 fast_cmov
1469 local_aligned_8
1470 local_aligned_16
1471 local_aligned_32
1472 simd_align
1473 simd_align_16
1474 simd_align_32
1475 "
1476
1477 BUILTIN_LIST="
1478 atomic_cas_ptr
1479 machine_rw_barrier
1480 MemoryBarrier
1481 mm_empty
1482 rdtsc
1483 sem_timedwait
1484 sync_val_compare_and_swap
1485 "
1486 HAVE_LIST_CMDLINE="
1487 inline_asm
1488 symver
1489 yasm
1490 "
1491
1492 HAVE_LIST_PUB="
1493 bigendian
1494 fast_unaligned
1495 "
1496
1497 HEADERS_LIST="
1498 AVFoundation_AVFoundation_h
1499 alsa_asoundlib_h
1500 altivec_h
1501 arpa_inet_h
1502 cdio_paranoia_h
1503 cdio_paranoia_paranoia_h
1504 dispatch_dispatch_h
1505 dev_bktr_ioctl_bt848_h
1506 dev_bktr_ioctl_meteor_h
1507 dev_ic_bt8xx_h
1508 dev_video_bktr_ioctl_bt848_h
1509 dev_video_meteor_ioctl_meteor_h
1510 direct_h
1511 dlfcn_h
1512 d3d11_h
1513 dxva_h
1514 gsm_h
1515 io_h
1516 mach_mach_time_h
1517 machine_ioctl_bt848_h
1518 machine_ioctl_meteor_h
1519 malloc_h
1520 poll_h
1521 sndio_h
1522 soundcard_h
1523 sys_mman_h
1524 sys_param_h
1525 sys_resource_h
1526 sys_select_h
1527 sys_soundcard_h
1528 sys_time_h
1529 sys_un_h
1530 sys_videoio_h
1531 unistd_h
1532 valgrind_valgrind_h
1533 windows_h
1534 winsock2_h
1535 "
1536
1537 INTRINSICS_LIST="
1538 intrinsics_neon
1539 "
1540
1541 MATH_FUNCS="
1542 atanf
1543 atan2f
1544 cbrtf
1545 cosf
1546 exp2
1547 exp2f
1548 expf
1549 isinf
1550 isnan
1551 ldexpf
1552 llrint
1553 llrintf
1554 log2
1555 log2f
1556 log10f
1557 lrint
1558 lrintf
1559 powf
1560 rint
1561 round
1562 roundf
1563 sinf
1564 trunc
1565 truncf
1566 "
1567
1568 SYSTEM_FUNCS="
1569 aligned_malloc
1570 clock_gettime
1571 closesocket
1572 CommandLineToArgvW
1573 CoTaskMemFree
1574 CryptGenRandom
1575 dlopen
1576 fcntl
1577 flt_lim
1578 fork
1579 getaddrinfo
1580 gethrtime
1581 getopt
1582 GetProcessAffinityMask
1583 GetProcessMemoryInfo
1584 GetProcessTimes
1585 getrusage
1586 GetSystemTimeAsFileTime
1587 gettimeofday
1588 gmtime_r
1589 inet_aton
1590 isatty
1591 jack_port_get_latency_range
1592 LoadLibrary
1593 localtime_r
1594 mach_absolute_time
1595 MapViewOfFile
1596 memalign
1597 mkstemp
1598 mmap
1599 mprotect
1600 nanosleep
1601 posix_memalign
1602 sched_getaffinity
1603 SetConsoleTextAttribute
1604 setmode
1605 setrlimit
1606 Sleep
1607 strerror_r
1608 sysconf
1609 sysctl
1610 usleep
1611 VirtualAlloc
1612 "
1613
1614 TOOLCHAIN_FEATURES="
1615 as_dn_directive
1616 as_fpu_directive
1617 as_func
1618 as_object_arch
1619 asm_mod_q
1620 attribute_may_alias
1621 attribute_packed
1622 ebp_available
1623 ebx_available
1624 gnu_as
1625 ibm_asm
1626 inline_asm_labels
1627 pragma_deprecated
1628 symver_asm_label
1629 symver_gnu_asm
1630 vfp_args
1631 xform_asm
1632 xmm_clobbers
1633 "
1634
1635 TYPES_LIST="
1636 CONDITION_VARIABLE_Ptr
1637 socklen_t
1638 struct_addrinfo
1639 struct_group_source_req
1640 struct_ip_mreq_source
1641 struct_ipv6_mreq
1642 struct_pollfd
1643 struct_rusage_ru_maxrss
1644 struct_sockaddr_in6
1645 struct_sockaddr_sa_len
1646 struct_sockaddr_storage
1647 struct_v4l2_frmivalenum_discrete
1648 "
1649
1650 HAVE_LIST="
1651 $ARCH_EXT_LIST
1652 $(add_suffix _external $ARCH_EXT_LIST)
1653 $(add_suffix _inline $ARCH_EXT_LIST)
1654 $ARCH_FEATURES
1655 $ATOMICS_LIST
1656 $BUILTIN_LIST
1657 $HAVE_LIST_CMDLINE
1658 $HAVE_LIST_PUB
1659 $HEADERS_LIST
1660 $INTRINSICS_LIST
1661 $MATH_FUNCS
1662 $SYSTEM_FUNCS
1663 $THREADS_LIST
1664 $TOOLCHAIN_FEATURES
1665 $TYPES_LIST
1666 atomics_native
1667 dos_paths
1668 dxva2_lib
1669 libc_msvcrt
1670 libdc1394_1
1671 libdc1394_2
1672 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1673 sdl
1674 section_data_rel_ro
1675 threads
1676 vaapi_drm
1677 vaapi_x11
1678 vdpau_x11
1679 xlib
1680 "
1681
1682 # options emitted with CONFIG_ prefix but not available on the command line
1683 CONFIG_EXTRA="
1684 aandcttables
1685 ac3dsp
1686 audio_frame_queue
1687 audiodsp
1688 blockdsp
1689 bswapdsp
1690 cabac
1691 dirac_parse
1692 dvprofile
1693 faandct
1694 faanidct
1695 fdctdsp
1696 flacdsp
1697 fmtconvert
1698 g722dsp
1699 gcrypt
1700 gmp
1701 golomb
1702 gplv3
1703 h263dsp
1704 h264chroma
1705 h264dsp
1706 h264parse
1707 h264pred
1708 h264qpel
1709 hpeldsp
1710 huffman
1711 huffyuvdsp
1712 huffyuvencdsp
1713 idctdsp
1714 iirfilter
1715 imdct15
1716 intrax8
1717 iso_media
1718 ividsp
1719 jpegtables
1720 libx262
1721 lgplv3
1722 lpc
1723 lzf
1724 me_cmp
1725 mpeg_er
1726 mpegaudio
1727 mpegaudiodsp
1728 mpegvideo
1729 mpegvideoenc
1730 mss34dsp
1731 pixblockdsp
1732 qpeldsp
1733 qsv
1734 qsvdec
1735 qsvenc
1736 rangecoder
1737 riffdec
1738 riffenc
1739 rtpdec
1740 rtpenc_chain
1741 rv34dsp
1742 sinewin
1743 snappy
1744 srtp
1745 startcode
1746 texturedsp
1747 texturedspenc
1748 tpeldsp
1749 vaapi_encode
1750 vc1dsp
1751 videodsp
1752 vp3dsp
1753 vp56dsp
1754 vp8dsp
1755 wma_freqs
1756 wmv2dsp
1757 "
1758
1759 CMDLINE_SELECT="
1760 $ARCH_EXT_LIST
1761 $CONFIG_LIST
1762 $HAVE_LIST_CMDLINE
1763 $THREADS_LIST
1764 asm
1765 cross_compile
1766 debug
1767 extra_warnings
1768 logging
1769 lto
1770 optimizations
1771 rpath
1772 "
1773
1774 PATHS_LIST="
1775 bindir
1776 datadir
1777 docdir
1778 incdir
1779 libdir
1780 mandir
1781 prefix
1782 shlibdir
1783 "
1784
1785 CMDLINE_SET="
1786 $PATHS_LIST
1787 ar
1788 arch
1789 as
1790 build_suffix
1791 cc
1792 objcc
1793 cpu
1794 cross_prefix
1795 custom_allocator
1796 dep_cc
1797 env
1798 extra_version
1799 host_cc
1800 host_cflags
1801 host_ld
1802 host_ldflags
1803 host_libs
1804 host_os
1805 ld
1806 logfile
1807 malloc_prefix
1808 nm
1809 optflags
1810 pkg_config
1811 pkg_config_flags
1812 random_seed
1813 samples
1814 sysinclude
1815 sysroot
1816 target_exec
1817 target_os
1818 target_path
1819 target_samples
1820 toolchain
1821 "
1822
1823 CMDLINE_APPEND="
1824 extra_cflags
1825 extra_objcflags
1826 host_cppflags
1827 "
1828
1829 # code dependency declarations
1830
1831 # architecture extensions
1832
1833 armv5te_deps="arm"
1834 armv6_deps="arm"
1835 armv6t2_deps="arm"
1836 armv8_deps="aarch64"
1837 neon_deps_any="aarch64 arm"
1838 intrinsics_neon_deps="neon"
1839 vfp_deps_any="aarch64 arm"
1840 vfpv3_deps="vfp"
1841
1842 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1843
1844 altivec_deps="ppc"
1845 ppc4xx_deps="ppc"
1846 vsx_deps="altivec"
1847 power8_deps="vsx"
1848
1849 cpunop_deps="i686"
1850 x86_64_select="i686"
1851 x86_64_suggest="fast_cmov"
1852
1853 amd3dnow_deps="mmx"
1854 amd3dnowext_deps="amd3dnow"
1855 i686_deps="x86"
1856 mmx_deps="x86"
1857 mmxext_deps="mmx"
1858 sse_deps="mmxext"
1859 sse2_deps="sse"
1860 sse3_deps="sse2"
1861 ssse3_deps="sse3"
1862 sse4_deps="ssse3"
1863 sse42_deps="sse4"
1864 avx_deps="sse42"
1865 xop_deps="avx"
1866 fma3_deps="avx"
1867 fma4_deps="avx"
1868 avx2_deps="avx"
1869
1870 mmx_external_deps="yasm"
1871 mmx_inline_deps="inline_asm"
1872 mmx_suggest="mmx_external mmx_inline"
1873
1874 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1875 eval dep=\$${ext}_deps
1876 eval ${ext}_external_deps='"${dep}_external"'
1877 eval ${ext}_inline_deps='"${dep}_inline"'
1878 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1879 done
1880
1881 aligned_stack_if_any="aarch64 ppc x86"
1882 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1883 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1884 fast_unaligned_if_any="aarch64 ppc x86"
1885 simd_align_if_any="simd_align_16 simd_align_32"
1886 simd_align_16_if_any="altivec neon sse"
1887 simd_align_32_if_any="avx"
1888
1889 # system capabilities
1890 symver_if_any="symver_asm_label symver_gnu_asm"
1891 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1892
1893 # threading support
1894 atomics_gcc_if="sync_val_compare_and_swap"
1895 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1896 atomics_win32_if="MemoryBarrier"
1897 atomics_native_if_any="$ATOMICS_LIST"
1898 w32threads_deps="atomics_native"
1899 threads_if_any="$THREADS_LIST"
1900
1901 # subsystems
1902 dct_select="rdft"
1903 dirac_parse_select="golomb"
1904 error_resilience_select="me_cmp"
1905 faandct_deps="faan fdctdsp"
1906 faanidct_deps="faan idctdsp"
1907 h264dsp_select="startcode"
1908 intrax8_select="blockdsp idctdsp"
1909 mdct_select="fft"
1910 rdft_select="fft"
1911 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1912 mpeg_er_select="error_resilience"
1913 mpegaudio_select="mpegaudiodsp"
1914 mpegaudiodsp_select="dct"
1915 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1916 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1917 vc1dsp_select="h264chroma qpeldsp startcode"
1918
1919 # decoders / encoders
1920 aac_decoder_select="imdct15 mdct sinewin"
1921 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1922 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1923 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1924 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1925 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1926 adpcm_g722_decoder_select="g722dsp"
1927 adpcm_g722_encoder_select="g722dsp"
1928 aic_decoder_select="golomb idctdsp"
1929 alac_encoder_select="lpc"
1930 als_decoder_select="bswapdsp"
1931 amrnb_decoder_select="lsp"
1932 amrwb_decoder_select="lsp"
1933 amv_decoder_select="sp5x_decoder"
1934 ape_decoder_select="bswapdsp"
1935 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1936 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1937 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1938 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1939 atrac1_decoder_select="mdct sinewin"
1940 atrac3_decoder_select="mdct"
1941 atrac3p_decoder_select="mdct sinewin"
1942 bink_decoder_select="blockdsp hpeldsp"
1943 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1944 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1945 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1946 cllc_decoder_select="bswapdsp"
1947 comfortnoise_encoder_select="lpc"
1948 cook_decoder_select="audiodsp mdct sinewin"
1949 cscd_decoder_select="lzo"
1950 cscd_decoder_suggest="zlib"
1951 dca_decoder_select="fmtconvert mdct"
1952 dds_decoder_select="texturedsp"
1953 dnxhd_decoder_select="blockdsp idctdsp"
1954 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1955 dvvideo_decoder_select="dvprofile idctdsp"
1956 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1957 dxa_decoder_deps="zlib"
1958 dxv_decoder_select="lzf texturedsp"
1959 eac3_decoder_select="ac3_decoder"
1960 eac3_encoder_select="ac3_encoder"
1961 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1962 eatgq_decoder_select="aandcttables idctdsp"
1963 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1964 exr_decoder_deps="zlib"
1965 ffv1_decoder_select="golomb rangecoder"
1966 ffv1_encoder_select="rangecoder"
1967 ffvhuff_decoder_select="huffyuv_decoder"
1968 ffvhuff_encoder_select="huffyuv_encoder"
1969 fic_decoder_select="golomb"
1970 flac_decoder_select="flacdsp golomb"
1971 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1972 flashsv_decoder_deps="zlib"
1973 flashsv_encoder_deps="zlib"
1974 flashsv2_decoder_deps="zlib"
1975 flv_decoder_select="h263_decoder"
1976 flv_encoder_select="h263_encoder"
1977 fourxm_decoder_select="blockdsp bswapdsp"
1978 fraps_decoder_select="bswapdsp huffman"
1979 g2m_decoder_deps="zlib"
1980 g2m_decoder_select="blockdsp idctdsp jpegtables"
1981 h261_decoder_select="mpeg_er mpegvideo"
1982 h261_encoder_select="aandcttables mpegvideoenc"
1983 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1984 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1985 h263i_decoder_select="h263_decoder"
1986 h263p_encoder_select="h263_encoder"
1987 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1988 h264_decoder_suggest="error_resilience"
1989 hap_decoder_select="snappy texturedsp"
1990 hap_encoder_deps="libsnappy"
1991 hap_encoder_select="texturedspenc"
1992 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1993 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1994 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1995 iac_decoder_select="imc_decoder"
1996 imc_decoder_select="bswapdsp fft mdct sinewin"
1997 indeo3_decoder_select="hpeldsp"
1998 indeo4_decoder_select="ividsp"
1999 indeo5_decoder_select="ividsp"
2000 interplay_video_decoder_select="hpeldsp"
2001 jpegls_decoder_select="golomb mjpeg_decoder"
2002 jpegls_encoder_select="golomb"
2003 jv_decoder_select="blockdsp"
2004 lagarith_decoder_select="huffyuvdsp"
2005 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2006 loco_decoder_select="golomb"
2007 magicyuv_decoder_select="huffyuvdsp"
2008 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2009 metasound_decoder_select="lsp mdct sinewin"
2010 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2011 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2012 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2013 mjpegb_decoder_select="mjpeg_decoder"
2014 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2015 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2016 mlp_decoder_select="mlp_parser"
2017 motionpixels_decoder_select="bswapdsp"
2018 mp1_decoder_select="mpegaudio"
2019 mp1float_decoder_select="mpegaudio"
2020 mp2_decoder_select="mpegaudio"
2021 mp2float_decoder_select="mpegaudio"
2022 mp3_decoder_select="mpegaudio"
2023 mp3adu_decoder_select="mpegaudio"
2024 mp3adufloat_decoder_select="mpegaudio"
2025 mp3float_decoder_select="mpegaudio"
2026 mp3on4_decoder_select="mpegaudio"
2027 mp3on4float_decoder_select="mpegaudio"
2028 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2029 mpc8_decoder_select="mpegaudiodsp"
2030 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2031 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2032 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2033 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2034 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2035 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2036 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2037 mpeg4_encoder_select="h263_encoder"
2038 msa1_decoder_select="mss34dsp"
2039 msmpeg4v1_decoder_select="h263_decoder"
2040 msmpeg4v2_decoder_select="h263_decoder"
2041 msmpeg4v2_encoder_select="h263_encoder"
2042 msmpeg4v3_decoder_select="h263_decoder"
2043 msmpeg4v3_encoder_select="h263_encoder"
2044 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2045 mts2_decoder_select="mss34dsp"
2046 mxpeg_decoder_select="mjpeg_decoder"
2047 nellymoser_decoder_select="mdct sinewin"
2048 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2049 nuv_decoder_select="idctdsp lzo"
2050 on2avc_decoder_select="mdct"
2051 opus_decoder_deps="avresample"
2052 opus_decoder_select="imdct15"
2053 png_decoder_deps="zlib"
2054 png_encoder_deps="zlib"
2055 png_encoder_select="huffyuvencdsp"
2056 prores_decoder_select="idctdsp"
2057 prores_encoder_select="fdctdsp"
2058 qcelp_decoder_select="lsp"
2059 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2060 ra_144_encoder_select="audio_frame_queue lpc"
2061 ralf_decoder_select="golomb"
2062 rscc_decoder_deps="zlib"
2063 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2064 rv10_encoder_select="h263_encoder"
2065 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2066 rv20_encoder_select="h263_encoder"
2067 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2068 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2069 screenpresso_decoder_deps="zlib"
2070 shorten_decoder_select="golomb"
2071 sipr_decoder_select="lsp"
2072 sp5x_decoder_select="mjpeg_decoder"
2073 svq1_decoder_select="hpeldsp"
2074 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2075 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2076 svq3_decoder_suggest="zlib"
2077 tak_decoder_select="audiodsp"
2078 tdsc_decoder_deps="zlib"
2079 tdsc_decoder_select="mjpeg_decoder"
2080 theora_decoder_select="vp3_decoder"
2081 thp_decoder_select="mjpeg_decoder"
2082 tiff_decoder_suggest="zlib"
2083 tiff_encoder_suggest="zlib"
2084 truehd_decoder_select="mlp_decoder"
2085 truemotion2_decoder_select="bswapdsp"
2086 truespeech_decoder_select="bswapdsp"
2087 tscc_decoder_deps="zlib"
2088 txd_decoder_select="texturedsp"
2089 twinvq_decoder_select="mdct lsp sinewin"
2090 utvideo_decoder_select="bswapdsp"
2091 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2092 vble_decoder_select="huffyuvdsp"
2093 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2094 vc1image_decoder_select="vc1_decoder"
2095 vorbis_decoder_select="mdct"
2096 vorbis_encoder_select="mdct"
2097 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2098 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2099 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2100 vp6a_decoder_select="vp6_decoder"
2101 vp6f_decoder_select="vp6_decoder"
2102 vp7_decoder_select="h264pred videodsp vp8dsp"
2103 vp8_decoder_select="h264pred videodsp vp8dsp"
2104 vp9_decoder_select="videodsp"
2105 webp_decoder_select="vp8_decoder"
2106 wmapro_decoder_select="mdct sinewin wma_freqs"
2107 wmav1_decoder_select="mdct sinewin wma_freqs"
2108 wmav1_encoder_select="mdct sinewin wma_freqs"
2109 wmav2_decoder_select="mdct sinewin wma_freqs"
2110 wmav2_encoder_select="mdct sinewin wma_freqs"
2111 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2112 wmv1_decoder_select="h263_decoder"
2113 wmv1_encoder_select="h263_encoder"
2114 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2115 wmv2_encoder_select="h263_encoder wmv2dsp"
2116 wmv3_decoder_select="vc1_decoder"
2117 wmv3image_decoder_select="wmv3_decoder"
2118 zerocodec_decoder_deps="zlib"
2119 zlib_decoder_deps="zlib"
2120 zlib_encoder_deps="zlib"
2121 zmbv_decoder_deps="zlib"
2122 zmbv_encoder_deps="zlib"
2123
2124 # hardware accelerators
2125 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2126 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2127 vaapi_deps="va_va_h"
2128 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2129 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2130 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2131
2132 h263_vaapi_hwaccel_deps="vaapi"
2133 h263_vaapi_hwaccel_select="h263_decoder"
2134 h264_d3d11va_hwaccel_deps="d3d11va"
2135 h264_d3d11va_hwaccel_select="h264_decoder"
2136 h264_dxva2_hwaccel_deps="dxva2"
2137 h264_dxva2_hwaccel_select="h264_decoder"
2138 h264_mmal_decoder_deps="mmal"
2139 h264_mmal_decoder_select="mmal"
2140 h264_mmal_hwaccel_deps="mmal"
2141 h264_omx_encoder_deps="omx"
2142 h264_qsv_hwaccel_deps="libmfx"
2143 h264_vaapi_hwaccel_deps="vaapi"
2144 h264_vaapi_hwaccel_select="h264_decoder"
2145 h264_vda_hwaccel_deps="vda"
2146 h264_vda_hwaccel_select="h264_decoder"
2147 h264_vda_old_hwaccel_deps="vda"
2148 h264_vda_old_hwaccel_select="h264_decoder"
2149 h264_vdpau_hwaccel_deps="vdpau"
2150 h264_vdpau_hwaccel_select="h264_decoder"
2151 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2152 hevc_d3d11va_hwaccel_select="hevc_decoder"
2153 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2154 hevc_dxva2_hwaccel_select="hevc_decoder"
2155 hevc_qsv_hwaccel_deps="libmfx"
2156 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2157 hevc_vdpau_hwaccel_select="hevc_decoder"
2158 mpeg1_vdpau_hwaccel_deps="vdpau"
2159 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2160 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2161 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2162 mpeg2_dxva2_hwaccel_deps="dxva2"
2163 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2164 mpeg2_mmal_decoder_deps="mmal"
2165 mpeg2_mmal_decoder_select="mmal"
2166 mpeg2_mmal_hwaccel_deps="mmal"
2167 mpeg2_qsv_hwaccel_deps="libmfx"
2168 mpeg2_vaapi_hwaccel_deps="vaapi"
2169 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2170 mpeg2_vdpau_hwaccel_deps="vdpau"
2171 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2172 mpeg4_omx_encoder_deps="omx"
2173 mpeg4_vaapi_hwaccel_deps="vaapi"
2174 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2175 mpeg4_vdpau_hwaccel_deps="vdpau"
2176 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2177 vc1_d3d11va_hwaccel_deps="d3d11va"
2178 vc1_d3d11va_hwaccel_select="vc1_decoder"
2179 vc1_dxva2_hwaccel_deps="dxva2"
2180 vc1_dxva2_hwaccel_select="vc1_decoder"
2181 vc1_mmal_decoder_deps="mmal"
2182 vc1_mmal_decoder_select="mmal"
2183 vc1_mmal_hwaccel_deps="mmal"
2184 vc1_vaapi_hwaccel_deps="vaapi"
2185 vc1_vaapi_hwaccel_select="vc1_decoder"
2186 vc1_vdpau_hwaccel_deps="vdpau"
2187 vc1_vdpau_hwaccel_select="vc1_decoder"
2188 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2189 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2190 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2191 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2192
2193 # hardware-accelerated codecs
2194 nvenc_deps_any="dlopen LoadLibrary"
2195 nvenc_extralibs='$ldl'
2196 omx_deps="dlopen pthreads"
2197 omx_extralibs='$ldl'
2198 qsvdec_select="qsv"
2199 qsvenc_select="qsv"
2200 vaapi_encode_deps="vaapi"
2201
2202 hwupload_cuda_filter_deps="cuda"
2203 scale_npp_filter_deps="cuda libnpp"
2204
2205 h264_nvenc_encoder_deps="nvenc"
2206 h264_qsv_decoder_deps="libmfx"
2207 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2208 h264_qsv_encoder_deps="libmfx"
2209 h264_qsv_encoder_select="qsvenc"
2210 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2211 h264_vaapi_encoder_select="vaapi_encode golomb"
2212
2213 hevc_nvenc_encoder_deps="nvenc"
2214 hevc_qsv_decoder_deps="libmfx"
2215 hevc_qsv_encoder_deps="libmfx"
2216 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2217 hevc_qsv_encoder_select="qsvenc"
2218 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2219 hevc_vaapi_encoder_select="vaapi_encode golomb"
2220 mpeg2_qsv_decoder_deps="libmfx"
2221 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2222 mpeg2_qsv_encoder_deps="libmfx"
2223 mpeg2_qsv_encoder_select="qsvenc"
2224
2225 nvenc_h264_encoder_deps="nvenc"
2226 nvenc_hevc_encoder_deps="nvenc"
2227
2228 # parsers
2229 h264_parser_select="golomb h264dsp h264parse"
2230 hevc_parser_select="golomb"
2231 mpegvideo_parser_select="mpegvideo"
2232 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2233 vc1_parser_select="vc1dsp"
2234
2235 # bitstream_filters
2236 mjpeg2jpeg_bsf_select="jpegtables"
2237
2238 # external libraries
2239 libdcadec_decoder_deps="libdcadec"
2240 libfaac_encoder_deps="libfaac"
2241 libfaac_encoder_select="audio_frame_queue"
2242 libfdk_aac_decoder_deps="libfdk_aac"
2243 libfdk_aac_encoder_deps="libfdk_aac"
2244 libfdk_aac_encoder_select="audio_frame_queue"
2245 libgsm_decoder_deps="libgsm"
2246 libgsm_encoder_deps="libgsm"
2247 libgsm_ms_decoder_deps="libgsm"
2248 libgsm_ms_encoder_deps="libgsm"
2249 libilbc_decoder_deps="libilbc"
2250 libilbc_encoder_deps="libilbc"
2251 libkvazaar_encoder_deps="libkvazaar"
2252 libmp3lame_encoder_deps="libmp3lame"
2253 libmp3lame_encoder_select="audio_frame_queue"
2254 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2255 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2256 libopencore_amrnb_encoder_select="audio_frame_queue"
2257 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2258 libopenh264_decoder_deps="libopenh264"
2259 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2260 libopenh264_encoder_deps="libopenh264"
2261 libopenjpeg_decoder_deps="libopenjpeg"
2262 libopenjpeg_encoder_deps="libopenjpeg"
2263 libopus_decoder_deps="libopus"
2264 libopus_encoder_deps="libopus"
2265 libopus_encoder_select="audio_frame_queue"
2266 libschroedinger_decoder_deps="libschroedinger"
2267 libschroedinger_encoder_deps="libschroedinger"
2268 libspeex_decoder_deps="libspeex"
2269 libspeex_encoder_deps="libspeex"
2270 libspeex_encoder_select="audio_frame_queue"
2271 libtheora_encoder_deps="libtheora"
2272 libtwolame_encoder_deps="libtwolame"
2273 libvo_aacenc_encoder_deps="libvo_aacenc"
2274 libvo_aacenc_encoder_select="audio_frame_queue"
2275 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2276 libvorbis_encoder_deps="libvorbis"
2277 libvorbis_encoder_select="audio_frame_queue"
2278 libvpx_vp8_decoder_deps="libvpx"
2279 libvpx_vp8_encoder_deps="libvpx"
2280 libvpx_vp9_decoder_deps="libvpx"
2281 libvpx_vp9_encoder_deps="libvpx"
2282 libwavpack_encoder_deps="libwavpack"
2283 libwebp_encoder_deps="libwebp"
2284 libx262_encoder_deps="libx262"
2285 libx264_encoder_deps="libx264"
2286 libx265_encoder_deps="libx265"
2287 libxavs_encoder_deps="libxavs"
2288 libxvid_encoder_deps="libxvid"
2289
2290 # demuxers / muxers
2291 ac3_demuxer_select="ac3_parser"
2292 asf_demuxer_select="riffdec"
2293 asf_muxer_select="riffenc"
2294 asf_stream_muxer_select="asf_muxer"
2295 avi_demuxer_select="iso_media riffdec"
2296 avi_muxer_select="riffenc"
2297 avisynth_demuxer_deps="avisynth"
2298 avisynth_demuxer_select="riffdec"
2299 caf_demuxer_select="iso_media riffdec"
2300 dash_muxer_select="mp4_muxer"
2301 dirac_demuxer_select="dirac_parser"
2302 dv_demuxer_select="dvprofile"
2303 dv_muxer_select="dvprofile"
2304 dxa_demuxer_select="riffdec"
2305 eac3_demuxer_select="ac3_parser"
2306 f4v_muxer_select="mov_muxer"
2307 flac_demuxer_select="flac_parser"
2308 hds_muxer_select="flv_muxer"
2309 hls_muxer_select="mpegts_muxer"
2310 ipod_muxer_select="mov_muxer"
2311 ismv_muxer_select="mov_muxer"
2312 matroska_audio_muxer_select="matroska_muxer"
2313 matroska_demuxer_select="iso_media riffdec"
2314 matroska_demuxer_suggest="bzlib lzo zlib"
2315 matroska_muxer_select="iso_media riffenc"
2316 mmf_muxer_select="riffenc"
2317 mov_demuxer_select="iso_media riffdec"
2318 mov_demuxer_suggest="zlib"
2319 mov_muxer_select="iso_media riffenc rtpenc_chain"
2320 mp3_demuxer_select="mpegaudio_parser"
2321 mp4_muxer_select="mov_muxer"
2322 mpegts_demuxer_select="iso_media"
2323 mpegts_muxer_select="adts_muxer latm_muxer"
2324 mpegtsraw_demuxer_select="mpegts_demuxer"
2325 mxf_d10_muxer_select="mxf_muxer"
2326 nut_muxer_select="riffenc"
2327 nuv_demuxer_select="riffdec"
2328 oga_muxer_select="ogg_muxer"
2329 ogg_demuxer_select="dirac_parse"
2330 opus_muxer_select="ogg_muxer"
2331 psp_muxer_select="mov_muxer"
2332 rtp_demuxer_select="sdp_demuxer"
2333 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2334 rtsp_demuxer_select="http_protocol rtpdec"
2335 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2336 sap_demuxer_select="sdp_demuxer"
2337 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2338 sdp_demuxer_select="rtpdec"
2339 smoothstreaming_muxer_select="ismv_muxer"
2340 spdif_muxer_select="aac_parser"
2341 spx_muxer_select="ogg_muxer"
2342 swf_demuxer_suggest="zlib"
2343 tak_demuxer_select="tak_parser"
2344 tg2_muxer_select="mov_muxer"
2345 tgp_muxer_select="mov_muxer"
2346 w64_demuxer_select="wav_demuxer"
2347 wav_demuxer_select="riffdec"
2348 wav_muxer_select="riffenc"
2349 webm_muxer_select="iso_media riffenc"
2350 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2351 wtv_demuxer_select="mpegts_demuxer riffdec"
2352 xmv_demuxer_select="riffdec"
2353 xwma_demuxer_select="riffdec"
2354
2355 # indevs / outdevs
2356 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2357 alsa_outdev_deps="alsa_asoundlib_h"
2358 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2359 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2360 dv1394_indev_deps="dv1394"
2361 dv1394_indev_select="dv_demuxer"
2362 fbdev_indev_deps="linux_fb_h"
2363 jack_indev_deps="jack_jack_h"
2364 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2365 libcdio_indev_deps="libcdio"
2366 libdc1394_indev_deps="libdc1394"
2367 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2368 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2369 pulse_indev_deps="libpulse"
2370 sndio_indev_deps="sndio_h"
2371 sndio_outdev_deps="sndio_h"
2372 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2373 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2374 vfwcap_indev_extralibs="-lavicap32"
2375 xcbgrab_indev_deps="libxcb"
2376
2377 # protocols
2378 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2379 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2380 ffrtmpcrypt_protocol_select="tcp_protocol"
2381 ffrtmphttp_protocol_deps="!librtmp_protocol"
2382 ffrtmphttp_protocol_select="http_protocol"
2383 gopher_protocol_select="network"
2384 http_protocol_select="tcp_protocol"
2385 httpproxy_protocol_select="tcp_protocol"
2386 https_protocol_select="tls_protocol"
2387 icecast_protocol_select="http_protocol"
2388 librtmp_protocol_deps="librtmp"
2389 librtmpe_protocol_deps="librtmp"
2390 librtmps_protocol_deps="librtmp"
2391 librtmpt_protocol_deps="librtmp"
2392 librtmpte_protocol_deps="librtmp"
2393 mmsh_protocol_select="http_protocol"
2394 mmst_protocol_select="network"
2395 rtmp_protocol_deps="!librtmp_protocol"
2396 rtmp_protocol_select="tcp_protocol"
2397 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2398 rtmps_protocol_deps="!librtmp_protocol"
2399 rtmps_protocol_select="tls_protocol"
2400 rtmpt_protocol_select="ffrtmphttp_protocol"
2401 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2402 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2403 rtp_protocol_select="udp_protocol"
2404 sctp_protocol_deps="struct_sctp_event_subscribe"
2405 sctp_protocol_select="network"
2406 srtp_protocol_select="rtp_protocol srtp"
2407 tcp_protocol_select="network"
2408 tls_gnutls_protocol_deps="gnutls"
2409 tls_gnutls_protocol_select="tcp_protocol"
2410 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2411 tls_openssl_protocol_select="tcp_protocol"
2412 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2413 udp_protocol_select="network"
2414 unix_protocol_deps="sys_un_h"
2415 unix_protocol_select="network"
2416
2417 # filters
2418 blackframe_filter_deps="gpl"
2419 boxblur_filter_deps="gpl"
2420 bs2b_filter_deps="libbs2b"
2421 cropdetect_filter_deps="gpl"
2422 deinterlace_qsv_filter_deps="libmfx"
2423 delogo_filter_deps="gpl"
2424 drawtext_filter_deps="libfreetype"
2425 frei0r_filter_deps="frei0r dlopen"
2426 frei0r_filter_extralibs='$ldl'
2427 frei0r_src_filter_deps="frei0r dlopen"
2428 frei0r_src_filter_extralibs='$ldl'
2429 hqdn3d_filter_deps="gpl"
2430 interlace_filter_deps="gpl"
2431 ocv_filter_deps="libopencv"
2432 resample_filter_deps="avresample"
2433 scale_filter_deps="swscale"
2434 scale_qsv_filter_deps="libmfx"
2435 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2436
2437 # examples
2438 avcodec_example_deps="avcodec avutil"
2439 filter_audio_example_deps="avfilter avutil"
2440 metadata_example_deps="avformat avutil"
2441 output_example_deps="avcodec avformat avutil swscale"
2442 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2443 transcode_aac_example_deps="avcodec avformat avresample"
2444
2445 # libraries, in linking order
2446 avcodec_deps="avutil"
2447 avdevice_deps="avformat avcodec avutil"
2448 avfilter_deps="avutil"
2449 avformat_deps="avcodec avutil"
2450 avresample_deps="avutil"
2451 swscale_deps="avutil"
2452
2453 # programs
2454 avconv_deps="avcodec avfilter avformat avresample swscale"
2455 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2456 fps_filter null_filter resample_filter scale_filter
2457 trim_filter"
2458 avplay_deps="avcodec avfilter avformat avresample sdl"
2459 avplay_libs='$sdl_libs'
2460 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2461 avprobe_deps="avcodec avformat"
2462
2463 # documentation
2464 pod2man_deps="doc"
2465 texi2html_deps="doc"
2466
2467 # default parameters
2468
2469 logfile="config.log"
2470
2471 # installation paths
2472 prefix_default="/usr/local"
2473 bindir_default='${prefix}/bin'
2474 datadir_default='${prefix}/share/avconv'
2475 docdir_default='${prefix}/share/doc/libav'
2476 incdir_default='${prefix}/include'
2477 libdir_default='${prefix}/lib'
2478 mandir_default='${prefix}/share/man'
2479 shlibdir_default="$libdir_default"
2480
2481 # toolchain
2482 ar_default="ar"
2483 cc_default="gcc"
2484 host_cc_default="gcc"
2485 cp_f="cp -f"
2486 ln_s="ln -s -f"
2487 nm_default="nm -g"
2488 objformat="elf"
2489 pkg_config_default=pkg-config
2490 ranlib="ranlib"
2491 strip="strip"
2492 version_script='--version-script'
2493 yasmexe="yasm"
2494
2495 # machine
2496 arch_default=$(uname -m)
2497 cpu="generic"
2498 intrinsics="none"
2499
2500 # OS
2501 target_os_default=$(tolower $(uname -s))
2502 host_os=$target_os_default
2503
2504 # configurable options
2505 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2506
2507 enable asm
2508 enable debug
2509 enable doc
2510 enable faan faandct faanidct
2511 enable optimizations
2512 enable safe_bitstream_reader
2513 enable static
2514 enable swscale_alpha
2515 enable valgrind_backtrace
2516
2517 # By default, enable only those hwaccels that have no external dependencies.
2518 enable d3d11va dxva2 vda vdpau
2519
2520 # build settings
2521 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2522 LIBPREF="lib"
2523 LIBSUF=".a"
2524 FULLNAME='$(NAME)$(BUILDSUF)'
2525 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2526 SLIBPREF="lib"
2527 SLIBSUF=".so"
2528 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2529 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2530 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2531 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2532 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2533 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2534 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2535
2536 asflags_filter=echo
2537 cflags_filter=echo
2538 ldflags_filter=echo
2539
2540 AS_C='-c'
2541 AS_O='-o $@'
2542 CC_C='-c'
2543 CC_E='-E -o $@'
2544 CC_O='-o $@'
2545 OBJCC_C='-c'
2546 OBJCC_E='-E -o $@'
2547 OBJCC_O='-o $@'
2548 LD_O='-o $@'
2549 LD_LIB='-l%'
2550 LD_PATH='-L'
2551 HOSTCC_C='-c'
2552 HOSTCC_E='-E -o $@'
2553 HOSTCC_O='-o $@'
2554 HOSTLD_O='-o $@'
2555
2556 host_libs='-lm'
2557 host_cflags_filter=echo
2558 host_ldflags_filter=echo
2559
2560 target_path='$(CURDIR)'
2561
2562 # since the object filename is not given with the -MM flag, the compiler
2563 # is only able to print the basename, and we must add the path ourselves
2564 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2565 DEPFLAGS='-MM'
2566
2567 # find source path
2568 if test -f configure; then
2569 source_path=.
2570 else
2571 source_path=$(cd $(dirname "$0"); pwd)
2572 echo "$source_path" | grep -q '[[:blank:]]' &&
2573 die "Out of tree builds are impossible with whitespace in source path."
2574 test -e "$source_path/config.h" &&
2575 die "Out of tree builds are impossible with config.h in source dir."
2576 fi
2577
2578 for v in "$@"; do
2579 r=${v#*=}
2580 l=${v%"$r"}
2581 r=$(sh_quote "$r")
2582 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2583 done
2584
2585 find_things(){
2586 thing=$1
2587 pattern=$2
2588 file=$source_path/$3
2589 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2590 }
2591
2592 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2593 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2594 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2595 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2596 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2597 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2598 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2599 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2600 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2601
2602 find_things_extern(){
2603 thing=$1
2604 pattern=$2
2605 file=$source_path/$3
2606 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2607 }
2608
2609 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2610 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2611
2612 ALL_COMPONENTS="
2613 $BSF_LIST
2614 $DECODER_LIST
2615 $DEMUXER_LIST
2616 $ENCODER_LIST
2617 $FILTER_LIST
2618 $HWACCEL_LIST
2619 $INDEV_LIST
2620 $MUXER_LIST
2621 $OUTDEV_LIST
2622 $PARSER_LIST
2623 $PROTOCOL_LIST
2624 "
2625
2626 for n in $COMPONENT_LIST; do
2627 v=$(toupper ${n%s})_LIST
2628 eval enable \$$v
2629 eval ${n}_if_any="\$$v"
2630 done
2631
2632 enable $ARCH_EXT_LIST
2633
2634 die_unknown(){
2635 echo "Unknown option \"$1\"."
2636 echo "See $0 --help for available options."
2637 exit 1
2638 }
2639
2640 print_3_columns() {
2641 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2642 }
2643
2644 show_list() {
2645 suffix=_$1
2646 shift
2647 echo $* | sed s/$suffix//g | print_3_columns
2648 exit 0
2649 }
2650
2651 rand_list(){
2652 IFS=', '
2653 set -- $*
2654 unset IFS
2655 for thing; do
2656 comp=${thing%:*}
2657 prob=${thing#$comp}
2658 prob=${prob#:}
2659 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2660 echo "prob ${prob:-0.5}"
2661 printf '%s\n' $comp
2662 done
2663 }
2664
2665 do_random(){
2666 action=$1
2667 shift
2668 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2669 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2670 }
2671
2672 for opt do
2673 optval="${opt#*=}"
2674 case "$opt" in
2675 --extra-ldflags=*)
2676 add_ldflags $optval
2677 ;;
2678 --extra-ldexeflags=*)
2679 add_ldexeflags $optval
2680 ;;
2681 --extra-libs=*)
2682 add_extralibs $optval
2683 ;;
2684 --disable-devices)
2685 disable $INDEV_LIST $OUTDEV_LIST
2686 ;;
2687 --enable-debug=*)
2688 debuglevel="$optval"
2689 ;;
2690 --disable-programs)
2691 disable $PROGRAM_LIST
2692 ;;
2693 --disable-everything)
2694 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2695 ;;
2696 --disable-all)
2697 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2698 disable $LIBRARY_LIST $PROGRAM_LIST doc
2699 ;;
2700 --enable-random|--disable-random)
2701 action=${opt%%-random}
2702 do_random ${action#--} $COMPONENT_LIST
2703 ;;
2704 --enable-random=*|--disable-random=*)
2705 action=${opt%%-random=*}
2706 do_random ${action#--} $optval
2707 ;;
2708 --enable-*=*|--disable-*=*)
2709 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2710 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2711 eval list=\$$(toupper $thing)_LIST
2712 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2713 $action $(filter "$name" $list)
2714 ;;
2715 --enable-avserver|--disable-avserver*)
2716 warn "avserver has been removed, the ${opt} option is only"\
2717 "provided for compatibility and will be removed in the future"
2718 ;;
2719 --enable-?*|--disable-?*)
2720 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2721 if is_in $option $COMPONENT_LIST; then
2722 test $action = disable && action=unset
2723 eval $action \$$(toupper ${option%s})_LIST
2724 elif is_in $option $CMDLINE_SELECT; then
2725 $action $option
2726 else
2727 die_unknown $opt
2728 fi
2729 ;;
2730 --list-*)
2731 NAME="${opt#--list-}"
2732 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2733 NAME=${NAME%s}
2734 eval show_list $NAME \$$(toupper $NAME)_LIST
2735 ;;
2736 --help|-h) show_help
2737 ;;
2738 *)
2739 optname="${opt%%=*}"
2740 optname="${optname#--}"
2741 optname=$(echo "$optname" | sed 's/-/_/g')
2742 if is_in $optname $CMDLINE_SET; then
2743 eval $optname='$optval'
2744 elif is_in $optname $CMDLINE_APPEND; then
2745 append $optname "$optval"
2746 else
2747 die_unknown $opt
2748 fi
2749 ;;
2750 esac
2751 done
2752
2753 for e in $env; do
2754 eval "export $e"
2755 done
2756
2757 disabled logging && logfile=/dev/null
2758
2759 # Disable all the library-specific components if the library itself
2760 # is disabled, see AVCODEC_LIST and following _LIST variables.
2761
2762 disable_components(){
2763 disabled ${1} && disable $(
2764 eval components="\$$(toupper ${1})_COMPONENTS"
2765 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2766 )
2767 }
2768
2769 map 'disable_components $v' $LIBRARY_LIST
2770
2771 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2772 set >> $logfile
2773
2774 case "$toolchain" in
2775 *-asan)
2776 cc_default="${toolchain%-asan}"
2777 add_cflags -fsanitize=address
2778 add_ldflags -fsanitize=address
2779 ;;
2780 *-msan)
2781 cc_default="${toolchain%-msan}"
2782 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2783 add_ldflags -fsanitize=memory
2784 ;;
2785 *-tsan)
2786 cc_default="${toolchain%-tsan}"
2787 add_cflags -fsanitize=thread -pie
2788 add_ldflags -fsanitize=thread -pie
2789 case "$toolchain" in
2790 gcc-tsan)
2791 add_cflags -fPIC
2792 add_ldflags -fPIC
2793 ;;
2794 esac
2795 ;;
2796 *-usan)
2797 cc_default="${toolchain%-usan}"
2798 add_cflags -fsanitize=undefined
2799 add_ldflags -fsanitize=undefined
2800 case "$toolchain" in
2801 clang-usan)
2802 add_cflags -O1
2803 ;;
2804 esac
2805 ;;
2806 valgrind-*)
2807 target_exec_default="valgrind"
2808 case "$toolchain" in
2809 valgrind-massif)
2810 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2811 ;;
2812 valgrind-memcheck)
2813 target_exec_args="--track-origins=yes --leak-check=full"
2814 ;;
2815 esac
2816 ;;
2817 msvc)
2818 # Check whether the current MSVC version needs the C99 converter.
2819 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2820 # support enough of C99 to build libav. Default to the new
2821 # behaviour if the regexp was unable to match anything, since this
2822 # successfully parses the version number of existing supported
2823 # versions that require the converter (MSVC 2010 and 2012).
2824 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2825 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2826 cc_default="cl"
2827 else
2828 cc_default="c99wrap cl"
2829 fi
2830 ld_default="$source_path/compat/windows/mslink"
2831 nm_default="dumpbin -symbols"
2832 ar_default="lib"
2833 case "$arch" in
2834 arm*)
2835 as_default="armasm"
2836 ;;
2837 esac
2838 target_os_default="win32"
2839 # Use a relative path for TMPDIR. This makes sure all the
2840 # ffconf temp files are written with a relative path, avoiding
2841 # issues with msys/win32 path conversion for MSVC parameters
2842 # such as -Fo<file> or -out:<file>.
2843 TMPDIR=.
2844 ;;
2845 icl)
2846 cc_default="icl"
2847 ld_default="xilink"
2848 nm_default="dumpbin -symbols"
2849 ar_default="xilib"
2850 target_os_default="win32"
2851 TMPDIR=.
2852 ;;
2853 gcov)
2854 add_cflags -fprofile-arcs -ftest-coverage
2855 add_ldflags -fprofile-arcs -ftest-coverage
2856 ;;
2857 llvm-cov)
2858 add_cflags -fprofile-arcs -ftest-coverage
2859 add_ldflags --coverage
2860 ;;
2861 hardened)
2862 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2863 add_cflags -fno-strict-overflow -fstack-protector-all
2864 add_ldflags -Wl,-z,relro -Wl,-z,now
2865 ;;
2866 ?*)
2867 die "Unknown toolchain $toolchain"
2868 ;;
2869 esac
2870
2871 test -n "$cross_prefix" && enable cross_compile
2872
2873 if enabled cross_compile; then
2874 test -n "$arch" && test -n "$target_os" ||
2875 die "Must specify target arch and OS when cross-compiling"
2876 fi
2877
2878 ar_default="${cross_prefix}${ar_default}"
2879 cc_default="${cross_prefix}${cc_default}"
2880 occ_default="${cross_prefix}${occ_default}"
2881 nm_default="${cross_prefix}${nm_default}"
2882 pkg_config_default="${cross_prefix}${pkg_config_default}"
2883 ranlib="${cross_prefix}${ranlib}"
2884 strip="${cross_prefix}${strip}"
2885
2886 sysinclude_default="${sysroot}/usr/include"
2887
2888 set_default arch cc pkg_config sysinclude target_exec target_os
2889 enabled cross_compile || host_cc_default=$cc
2890 set_default host_cc
2891
2892 if ! $pkg_config --version >/dev/null 2>&1; then
2893 warn "$pkg_config not found, library detection may fail."
2894 pkg_config=false
2895 fi
2896
2897 exesuf() {
2898 case $1 in
2899 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2900 esac
2901 }
2902
2903 EXESUF=$(exesuf $target_os)
2904 HOSTEXESUF=$(exesuf $host_os)
2905
2906 # set temporary file name
2907 : ${TMPDIR:=$TEMPDIR}
2908 : ${TMPDIR:=$TMP}
2909 : ${TMPDIR:=/tmp}
2910
2911 if ! check_cmd mktemp -u XXXXXX; then
2912 # simple replacement for missing mktemp
2913 # NOT SAFE FOR GENERAL USE
2914 mktemp(){
2915 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2916 }
2917 fi
2918
2919 tmpfile(){
2920 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2921 (set -C; exec > $tmp) 2>/dev/null ||
2922 die "Unable to create temporary file in $TMPDIR."
2923 append TMPFILES $tmp
2924 eval $1=$tmp
2925 }
2926
2927 trap 'rm -f -- $TMPFILES' EXIT
2928
2929 tmpfile TMPASM .asm
2930 tmpfile TMPC .c
2931 tmpfile TMPE $EXESUF
2932 tmpfile TMPH .h
2933 tmpfile TMPO .o
2934 tmpfile TMPS .S
2935 tmpfile TMPSH .sh
2936 tmpfile TMPV .ver
2937
2938 unset -f mktemp
2939
2940 chmod +x $TMPE
2941
2942 # make sure we can execute files in $TMPDIR
2943 cat > $TMPSH 2>> $logfile <<EOF
2944 #! /bin/sh
2945 EOF
2946 chmod +x $TMPSH >> $logfile 2>&1
2947 if ! $TMPSH >> $logfile 2>&1; then
2948 cat <<EOF
2949 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2950 variable to another directory and make sure that it is not mounted noexec.
2951 EOF
2952 die "Sanity test failed."
2953 fi
2954
2955 armasm_flags(){
2956 for flag; do
2957 case $flag in
2958 # Filter out MSVC cl.exe options from cflags that shouldn't
2959 # be passed to gas-preprocessor
2960 -M[TD]*) ;;
2961 *) echo $flag ;;
2962 esac
2963 done
2964 }
2965
2966 ccc_flags(){
2967 for flag; do
2968 case $flag in
2969 -std=c99) echo -c99 ;;
2970 -mcpu=*) echo -arch ${flag#*=} ;;
2971 -mieee) echo -ieee ;;
2972 -O*|-fast) echo $flag ;;
2973 -fno-math-errno) echo -assume nomath_errno ;;
2974 -g) echo -g3 ;;
2975 -Wall) echo -msg_enable level2 ;;
2976 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2977 -Wl,*) echo $flag ;;
2978 -f*|-W*) ;;
2979 *) echo $flag ;;
2980 esac
2981 done
2982 }
2983
2984 cparser_flags(){
2985 for flag; do
2986 case $flag in
2987 -Wno-switch) echo -Wno-switch-enum ;;
2988 -Wno-format-zero-length) ;;
2989 -Wdisabled-optimization) ;;
2990 -Wno-pointer-sign) echo -Wno-other ;;
2991 *) echo $flag ;;
2992 esac
2993 done
2994 }
2995
2996 msvc_common_flags(){
2997 for flag; do
2998 case $flag in
2999 # In addition to specifying certain flags under the compiler
3000 # specific filters, they must be specified here as well or else the
3001 # generic catch all at the bottom will print the original flag.
3002 -Wall) ;;
3003 -std=c99) ;;
3004 # Common flags
3005 -fomit-frame-pointer) ;;
3006 -g) echo -Z7 ;;
3007 -fno-math-errno) ;;
3008 -fno-common) ;;
3009 -fno-signed-zeros) ;;
3010 -fPIC) ;;
3011 -mthumb) ;;
3012 -march=*) ;;
3013 -lz) echo zlib.lib ;;
3014 -lavifil32) echo vfw32.lib ;;
3015 -lavicap32) echo vfw32.lib user32.lib ;;
3016 -lx264) echo libx264.lib ;;
3017 -l*) echo ${flag#-l}.lib ;;
3018 -L*) echo -libpath:${flag#-L} ;;
3019 *) echo $flag ;;
3020 esac
3021 done
3022 }
3023
3024 msvc_flags(){
3025 msvc_common_flags "$@"
3026 for flag; do
3027 case $flag in
3028 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3029 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3030 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3031 -wd4273 -wd4554 -wd4701 ;;
3032 esac
3033 done
3034 }
3035
3036 icl_flags(){
3037 msvc_common_flags "$@"
3038 for flag; do
3039 case $flag in
3040 # Despite what Intel's documentation says -Wall, which is supported
3041 # on Windows, does enable remarks so disable them here.
3042 -Wall) echo $flag -Qdiag-disable:remark ;;
3043 -std=c99) echo -Qstd=c99 ;;
3044 esac
3045 done
3046 }
3047
3048 pgi_flags(){
3049 for flag; do
3050 case $flag in
3051 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3052 -fomit-frame-pointer) echo -Mnoframe ;;
3053 -g) echo -gopt ;;
3054 *) echo $flag ;;
3055 esac
3056 done
3057 }
3058
3059 suncc_flags(){
3060 for flag; do
3061 case $flag in
3062 -march=*|-mcpu=*)
3063 case "${flag#*=}" in
3064 native) echo -xtarget=native ;;
3065 v9|niagara) echo -xarch=sparc ;;
3066 ultrasparc) echo -xarch=sparcvis ;;
3067 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3068 i586|pentium) echo -xchip=pentium ;;
3069 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3070 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3071 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3072 pentium4*) echo -xtarget=pentium4 ;;
3073 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3074 *-sse3) echo -xarch=sse3 ;;
3075 core2) echo -xarch=ssse3 -xchip=core2 ;;
3076 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3077 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3078 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3079 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3080 k8|opteron|athlon64|athlon-fx)
3081 echo -xarch=sse2a ;;
3082 athlon*) echo -xarch=pentium_proa ;;
3083 esac
3084 ;;
3085 -std=c99) echo -xc99 ;;
3086 -fomit-frame-pointer) echo -xregs=frameptr ;;
3087 -fPIC) echo -KPIC -xcode=pic32 ;;
3088 -W*,*) echo $flag ;;
3089 -f*-*|-W*|-mimpure-text) ;;
3090 -shared) echo -G ;;
3091 *) echo $flag ;;
3092 esac
3093 done
3094 }
3095
3096 tms470_flags(){
3097 for flag; do
3098 case $flag in
3099 -march=*|-mcpu=*)
3100 case "${flag#*=}" in
3101 armv7-a|cortex-a*) echo -mv=7a8 ;;
3102 armv7-r|cortex-r*) echo -mv=7r4 ;;
3103 armv7-m|cortex-m*) echo -mv=7m3 ;;
3104 armv6*|arm11*) echo -mv=6 ;;
3105 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3106 echo -mv=5e ;;
3107 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3108 esac
3109 ;;
3110 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3111 -mfpu=vfp) echo --float_support=vfpv2 ;;
3112 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3113 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3114 -msoft-float) echo --float_support=vfplib ;;
3115 -O[0-3]|-mf=*) echo $flag ;;
3116 -g) echo -g -mn ;;
3117 -pds=*) echo $flag ;;
3118 -D*|-I*) echo $flag ;;
3119 --gcc|--abi=*) echo $flag ;;
3120 -me) echo $flag ;;
3121 esac
3122 done
3123 }
3124
3125 probe_cc(){
3126 pfx=$1
3127 _cc=$2
3128
3129 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3130 unset _ld_o _ldflags _ld_lib _ld_path
3131 unset _depflags _DEPCMD _DEPFLAGS
3132 _flags_filter=echo
3133
3134 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3135 _type=llvm_gcc
3136 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3137 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3138 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3139 _cflags_speed='-O3'
3140 _cflags_size='-Os'
3141 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3142 _type=gcc
3143 gcc_version=$($_cc --version | head -n1)
3144 gcc_basever=$($_cc -dumpversion)
3145 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3146 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3147 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3148 if ! $_cc -dumpversion | grep -q '^2\.'; then
3149 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3150 fi
3151 _cflags_speed='-O3'
3152 _cflags_size='-Os'
3153 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3154 _type=icc
3155 _ident=$($_cc --version | head -n1)
3156 _depflags='-MMD'
3157 _cflags_speed='-O3'
3158 _cflags_size='-Os'
3159 _cflags_noopt='-O1'
3160 elif $_cc -v 2>&1 | grep -q xlc; then
3161 _type=xlc
3162 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3163 _cflags_speed='-O5'
3164 _cflags_size='-O5 -qcompact'
3165 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3166 _type=ccc
3167 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3168 _DEPFLAGS='-M'
3169 _cflags_speed='-fast'
3170 _cflags_size='-O1'
3171 _flags_filter=ccc_flags
3172 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3173 test -d "$sysroot" || die "No valid sysroot specified."
3174 _type=armcc
3175 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3176 armcc_conf="$PWD/armcc.conf"
3177 $_cc --arm_linux_configure \
3178 --arm_linux_config_file="$armcc_conf" \
3179 --configure_sysroot="$sysroot" \
3180 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3181 die "Error creating armcc configuration file."
3182 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3183 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3184 as_default="${cross_prefix}gcc"
3185 _depflags='-MMD'
3186 _cflags_speed='-O3'
3187 _cflags_size='-Os'
3188 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3189 _type=tms470
3190 _ident=$($_cc -version | head -n1 | tr -s ' ')
3191 _flags='--gcc --abi=eabi -me'
3192 _cc_e='-ppl -fe=$@'
3193 _cc_o='-fe=$@'
3194 _depflags='-ppa -ppd=$(@:.o=.d)'
3195 _cflags_speed='-O3 -mf=5'
3196 _cflags_size='-O3 -mf=2'
3197 _flags_filter=tms470_flags
3198 elif $_cc -v 2>&1 | grep -q clang; then
3199 _type=clang
3200 _ident=$($_cc --version 2>/dev/null | head -n1)
3201 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3202 _cflags_speed='-O3'
3203 _cflags_size='-Os'
3204 elif $_cc -V 2>&1 | grep -q Sun; then
3205 _type=suncc
3206 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3207 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3208 _DEPFLAGS='-xM1 -xc99'
3209 _ldflags='-std=c99'
3210 _cflags_speed='-O5'
3211 _cflags_size='-O5 -xspace'
3212 _flags_filter=suncc_flags
3213 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3214 _type=pathscale
3215 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3216 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3217 _cflags_speed='-O2'
3218 _cflags_size='-Os'
3219 _flags_filter='filter_out -Wdisabled-optimization'
3220 elif $_cc -v 2>&1 | grep -q Open64; then
3221 _type=open64
3222 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3223 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3224 _cflags_speed='-O2'
3225 _cflags_size='-Os'
3226 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3227 elif $_cc -V 2>&1 | grep -q Portland; then
3228 _type=pgi
3229 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3230 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3231 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3232 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3233 _cflags_noopt="-O1"
3234 _flags_filter=pgi_flags
3235 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3236 _type=armasm
3237 _ident=$($_cc | head -n1)
3238 # 4509: "This form of conditional instruction is deprecated"
3239 _flags="-nologo -ignore 4509"
3240 _flags_filter=armasm_flags
3241 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3242 _type=msvc
3243 _ident=$($_cc 2>&1 | head -n1)
3244 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3245 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3246 _cflags_speed="-O2"
3247 _cflags_size="-O1"
3248 if $_cc -nologo- 2>&1 | grep -q Linker; then
3249 _ld_o='-out:$@'
3250 else
3251 _ld_o='-Fe$@'
3252 fi
3253 _cc_o='-Fo$@'
3254 _cc_e='-P -Fi$@'
3255 _flags_filter=msvc_flags
3256 _ld_lib='lib%.a'
3257 _ld_path='-libpath:'
3258 _flags='-nologo'
3259 elif $_cc 2>&1 | grep -q Intel; then
3260 _type=icl
3261 _ident=$($_cc 2>&1 | head -n1)
3262 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3263 # Not only is O3 broken on 13.x+ but it is slower on all previous
3264 # versions (tested) as well.
3265 _cflags_speed="-O2"
3266 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3267 if $_cc 2>&1 | grep -q Linker; then
3268 _ld_o='-out:$@'
3269 else
3270 _ld_o='-Fe$@'
3271 fi
3272 _cc_o='-Fo$@'
3273 _cc_e='-P'
3274 _flags_filter=icl_flags
3275 _ld_lib='lib%.a'
3276 _ld_path='-libpath:'
3277 # -Qdiag-error to make icl error when seeing certain unknown arguments
3278 _flags='-nologo -Qdiag-error:4044,10157'
3279 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3280 # with MSVC which enables it by default.
3281 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3282 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3283 # lld can emulate multiple different linkers; in ms link.exe mode,
3284 # the -? parameter gives the help output which contains an identifyable
3285 # string, while it gives an error in other modes.
3286 _type=lld-link
3287 # The link.exe mode doesn't have a switch for getting the version,
3288 # but we can force it back to gnu mode and get the version from there.
3289 _ident=$($_cc -flavor gnu --version)
3290 _ld_o='-out:$@'
3291 _flags_filter=msvc_flags
3292 _ld_lib='lib%.a'
3293 _ld_path='-libpath:'
3294 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3295 _type=cparser
3296 _ident=$($_cc --version | head -n1)
3297 _depflags='-MMD'
3298 _cflags_speed='-O4'
3299 _cflags_size='-O2'
3300 _flags_filter=cparser_flags
3301 fi
3302
3303 eval ${pfx}_type=\$_type
3304 eval ${pfx}_ident=\$_ident
3305 }
3306
3307 set_ccvars(){
3308 eval ${1}_C=\${_cc_c-\${${1}_C}}
3309 eval ${1}_E=\${_cc_e-\${${1}_E}}
3310 eval ${1}_O=\${_cc_o-\${${1}_O}}
3311
3312 if [ -n "$_depflags" ]; then
3313 eval ${1}_DEPFLAGS=\$_depflags
3314 else
3315 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3316 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3317 eval DEP${1}FLAGS=\$_flags
3318 fi
3319 }
3320
3321 probe_cc cc "$cc"
3322 cflags_filter=$_flags_filter
3323 cflags_speed=$_cflags_speed
3324 cflags_size=$_cflags_size
3325 cflags_noopt=$_cflags_noopt
3326 add_cflags $_flags $_cflags
3327 cc_ldflags=$_ldflags
3328 set_ccvars CC
3329
3330 probe_cc hostcc "$host_cc"
3331 host_cflags_filter=$_flags_filter
3332 add_host_cflags $_flags $_cflags
3333 set_ccvars HOSTCC
3334
3335 test -n "$cc_type" && enable $cc_type ||
3336 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3337
3338 : ${as_default:=$cc}
3339 : ${objcc_default:=$cc}
3340 : ${dep_cc_default:=$cc}
3341 : ${ld_default:=$cc}
3342 : ${host_ld_default:=$host_cc}
3343 set_default ar as objcc dep_cc ld host_ld
3344
3345 probe_cc as "$as"
3346 asflags_filter=$_flags_filter
3347 add_asflags $_flags $_cflags
3348 set_ccvars AS
3349
3350 probe_cc objcc "$objcc"
3351 objcflags_filter=$_flags_filter
3352 add_objcflags $_flags $_cflags
3353 set_ccvars OBJC
3354
3355 probe_cc ld "$ld"
3356 ldflags_filter=$_flags_filter
3357 add_ldflags $_flags $_ldflags
3358 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3359 LD_O=${_ld_o-$LD_O}
3360 LD_LIB=${_ld_lib-$LD_LIB}
3361 LD_PATH=${_ld_path-$LD_PATH}
3362
3363 probe_cc hostld "$host_ld"
3364 host_ldflags_filter=$_flags_filter
3365 add_host_ldflags $_flags $_ldflags
3366 HOSTLD_O=${_ld_o-$HOSTLD_O}
3367
3368 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3369 probe_cc depcc "$dep_cc"
3370 CCDEP=${_DEPCMD:-$DEPCMD}
3371 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3372 DEPCCFLAGS=$_flags
3373 fi
3374
3375 if $ar 2>&1 | grep -q Microsoft; then
3376 arflags="-nologo"
3377 ar_o='-out:$@'
3378 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3379 arflags="rq"
3380 ar_o='$@'
3381 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3382 arflags='-Xany -r -c'
3383 ar_o='$@'
3384 else
3385 arflags="rc"
3386 ar_o='$@'
3387 fi
3388
3389 add_cflags $extra_cflags
3390 add_objcflags $extra_objcflags
3391 add_asflags $extra_cflags
3392
3393 if test -n "$sysroot"; then
3394 case "$cc_type" in
3395 gcc|llvm_gcc|clang)
3396 add_cppflags --sysroot="$sysroot"
3397 add_ldflags --sysroot="$sysroot"
3398 ;;
3399 tms470)
3400 add_cppflags -I"$sysinclude"
3401 add_ldflags --sysroot="$sysroot"
3402 ;;
3403 esac
3404 fi
3405
3406 if test "$cpu" = host; then
3407 enabled cross_compile &&
3408 die "--cpu=host makes no sense when cross-compiling."
3409
3410 case "$cc_type" in
3411 gcc|llvm_gcc)
3412 check_native(){
3413 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3414 sed -n "/cc1.*$1=/{
3415 s/.*$1=\\([^ ]*\\).*/\\1/
3416 p
3417 q
3418 }" $TMPE
3419 }
3420 cpu=$(check_native -march || check_native -mcpu)
3421 ;;
3422 esac
3423
3424 test "${cpu:-host}" = host &&
3425 die "--cpu=host not supported with compiler $cc"
3426 fi
3427
3428 # Deal with common $arch aliases
3429 case "$arch" in
3430 aarch64|arm64)
3431 arch="aarch64"
3432 ;;
3433 arm*)
3434 arch="arm"
3435 ;;
3436 mips*|IP*)
3437 case "$arch" in
3438 *el)
3439 add_cppflags -EL
3440 add_ldflags -EL
3441 ;;
3442 *eb)
3443 add_cppflags -EB
3444 add_ldflags -EB
3445 ;;
3446 esac
3447 arch="mips"
3448 ;;
3449 parisc*|hppa*)
3450 arch="parisc"
3451 ;;
3452 "Power Macintosh"|ppc*|powerpc*)
3453 arch="ppc"
3454 ;;
3455 s390|s390x)
3456 arch="s390"
3457 ;;
3458 sh4|sh)
3459 arch="sh4"
3460 ;;
3461 sun4u|sparc*)
3462 arch="sparc"
3463 ;;
3464 tilegx|tile-gx)
3465 arch="tilegx"
3466 ;;
3467 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3468 arch="x86"
3469 ;;
3470 esac
3471
3472 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3473 enable $arch
3474
3475 # Add processor-specific flags
3476 if enabled aarch64; then
3477
3478 case $cpu in
3479 armv*)
3480 cpuflags="-march=$cpu"
3481 ;;
3482 *)
3483 cpuflags="-mcpu=$cpu"
3484 ;;
3485 esac
3486
3487 elif enabled alpha; then
3488
3489 cpuflags="-mcpu=$cpu"
3490
3491 elif enabled arm; then
3492
3493 check_arm_arch() {
3494 check_cpp_condition stddef.h \
3495 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3496 $cpuflags
3497 }
3498
3499 probe_arm_arch() {
3500 if check_arm_arch 4; then echo armv4
3501 elif check_arm_arch 4T; then echo armv4t
3502 elif check_arm_arch 5; then echo armv5
3503 elif check_arm_arch 5E; then echo armv5e
3504 elif check_arm_arch 5T; then echo armv5t
3505 elif check_arm_arch 5TE; then echo armv5te
3506 elif check_arm_arch 5TEJ; then echo armv5te
3507 elif check_arm_arch 6; then echo armv6
3508 elif check_arm_arch 6J; then echo armv6j
3509 elif check_arm_arch 6K; then echo armv6k
3510 elif check_arm_arch 6Z; then echo armv6z
3511 elif check_arm_arch 6ZK; then echo armv6zk
3512 elif check_arm_arch 6T2; then echo armv6t2
3513 elif check_arm_arch 7; then echo armv7
3514 elif check_arm_arch 7A 7_A; then echo armv7-a
3515 elif check_arm_arch 7S; then echo armv7-a
3516 elif check_arm_arch 7R 7_R; then echo armv7-r
3517 elif check_arm_arch 7M 7_M; then echo armv7-m
3518 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3519 elif check_arm_arch 8A 8_A; then echo armv8-a
3520 fi
3521 }
3522
3523 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3524
3525 case $cpu in
3526 armv*)
3527 cpuflags="-march=$cpu"
3528 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3529 ;;
3530 *)
3531 cpuflags="-mcpu=$cpu"
3532 case $cpu in
3533 cortex-a*) subarch=armv7a ;;
3534 cortex-r*) subarch=armv7r ;;
3535 cortex-m*) enable thumb; subarch=armv7m ;;
3536 arm11*) subarch=armv6 ;;
3537 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3538 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3539 *) subarch=$(probe_arm_arch) ;;
3540 esac
3541 ;;
3542 esac
3543
3544 case "$subarch" in
3545 armv5t*) enable fast_clz ;;
3546 armv[6-8]*) enable fast_clz fast_unaligned ;;
3547 esac
3548
3549 elif enabled avr32; then
3550
3551 case $cpu in
3552 ap7[02]0[0-2])
3553 subarch="avr32_ap"
3554 cpuflags="-mpart=$cpu"
3555 ;;
3556 ap)
3557 subarch="avr32_ap"
3558 cpuflags="-march=$cpu"
3559 ;;
3560 uc3[ab]*)
3561 subarch="avr32_uc"
3562 cpuflags="-mcpu=$cpu"
3563 ;;
3564 uc)
3565 subarch="avr32_uc"
3566 cpuflags="-march=$cpu"
3567 ;;
3568 esac
3569
3570 elif enabled bfin; then
3571
3572 cpuflags="-mcpu=$cpu"
3573
3574 elif enabled mips; then
3575
3576 cpuflags="-march=$cpu"
3577
3578 elif enabled ppc; then
3579
3580 disable ldbrx
3581
3582 case $(tolower $cpu) in
3583 601|ppc601|powerpc601)
3584 cpuflags="-mcpu=601"
3585 disable altivec
3586 ;;
3587 603*|ppc603*|powerpc603*)
3588 cpuflags="-mcpu=603"
3589 disable altivec
3590 ;;
3591 604*|ppc604*|powerpc604*)
3592 cpuflags="-mcpu=604"
3593 disable altivec
3594 ;;
3595 g3|75*|ppc75*|powerpc75*)
3596 cpuflags="-mcpu=750"
3597 disable altivec
3598 ;;
3599 g4|745*|ppc745*|powerpc745*)
3600 cpuflags="-mcpu=7450"
3601 disable vsx
3602 ;;
3603 74*|ppc74*|powerpc74*)
3604 cpuflags="-mcpu=7400"
3605 disable vsx
3606 ;;
3607 g5|970|ppc970|powerpc970)
3608 cpuflags="-mcpu=970"
3609 disable vsx
3610 ;;
3611 power[3-6]*)
3612 cpuflags="-mcpu=$cpu"
3613 disable vsx
3614 ;;
3615 power[7-8]*)
3616 cpuflags="-mcpu=$cpu"
3617 enable ldbrx
3618 ;;
3619 cell)
3620 cpuflags="-mcpu=cell"
3621 enable ldbrx
3622 disable vsx
3623 ;;
3624 e500mc)
3625 cpuflags="-mcpu=e500mc"
3626 disable altivec
3627 ;;
3628 e500v2)
3629 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3630 disable altivec
3631 disable dcbzl
3632 ;;
3633 e500)
3634 cpuflags="-mcpu=8540 -mhard-float"
3635 disable altivec
3636 disable dcbzl
3637 ;;
3638 esac
3639
3640 elif enabled sparc; then
3641
3642 case $cpu in
3643 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3644 cpuflags="-mcpu=$cpu"
3645 ;;
3646 ultrasparc*|niagara[234])
3647 cpuflags="-mcpu=$cpu"
3648 ;;
3649 esac
3650
3651 elif enabled x86; then
3652
3653 case $cpu in
3654 i[345]86|pentium)
3655 cpuflags="-march=$cpu"
3656 disable i686
3657 disable mmx
3658 ;;
3659 # targets that do NOT support nopl and conditional mov (cmov)
3660 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3661 cpuflags="-march=$cpu"
3662 disable i686
3663 ;;
3664 # targets that do support nopl and conditional mov (cmov)
3665 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3666 cpuflags="-march=$cpu"
3667 enable i686
3668 enable fast_cmov
3669 ;;
3670 # targets that do support conditional mov but on which it's slow
3671 pentium4|pentium4m|prescott|nocona)
3672 cpuflags="-march=$cpu"
3673 enable i686
3674 disable fast_cmov
3675 ;;
3676 esac
3677
3678 fi
3679
3680 if [ "$cpu" != generic ]; then
3681 add_cflags $cpuflags
3682 add_asflags $cpuflags
3683 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3684 fi
3685
3686 # compiler sanity check
3687 check_exec <<EOF
3688 int main(void){ return 0; }
3689 EOF
3690 if test "$?" != 0; then
3691 echo "$cc is unable to create an executable file."
3692 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3693 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3694 echo "Only do this if you know what cross compiling means."
3695 fi
3696 die "C compiler test failed."
3697 fi
3698
3699 add_cppflags -D_ISOC99_SOURCE
3700 check_cflags -std=c99
3701 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3702 #include <stdlib.h>
3703 EOF
3704 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3705 #include <stdlib.h>
3706 EOF
3707
3708 add_host_cppflags -D_ISOC99_SOURCE
3709 check_host_cflags -std=c99
3710 check_host_cflags -Wall
3711 check_host_cflags -O3
3712
3713 check_64bit(){
3714 arch32=$1
3715 arch64=$2
3716 expr=$3
3717 check_code cc "" "int test[2*($expr) - 1]" &&
3718 subarch=$arch64 || subarch=$arch32
3719 }
3720
3721 case "$arch" in
3722 aarch64|alpha|ia64)
3723 spic=$shared
3724 ;;
3725 mips)
3726 check_64bit mips mips64 '_MIPS_SIM > 1'
3727 spic=$shared
3728 ;;
3729 parisc)
3730 check_64bit parisc parisc64 'sizeof(void *) > 4'
3731 spic=$shared
3732 ;;
3733 ppc)
3734 check_64bit ppc ppc64 'sizeof(void *) > 4'
3735 spic=$shared
3736 ;;
3737 s390)
3738 check_64bit s390 s390x 'sizeof(void *) > 4'
3739 spic=$shared
3740 ;;
3741 sparc)
3742 check_64bit sparc sparc64 'sizeof(void *) > 4'
3743 spic=$shared
3744 ;;
3745 x86)
3746 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3747 if test "$subarch" = "x86_64"; then
3748 spic=$shared
3749 fi
3750 ;;
3751 esac
3752
3753 enable $subarch
3754 enabled spic && enable_weak pic
3755
3756 # OS specific
3757 case $target_os in
3758 aix)
3759 SHFLAGS=-shared
3760 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3761 enabled shared && add_ldflags -Wl,-brtl
3762 ;;
3763 android)
3764 disable symver
3765 enable section_data_rel_ro
3766 SLIB_INSTALL_NAME='$(SLIBNAME)'
3767 SLIB_INSTALL_LINKS=
3768 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3769 ;;
3770 haiku)
3771 prefix_default="/boot/common"
3772 network_extralibs="-lnetwork"
3773 host_libs=
3774 ;;
3775 sunos)
3776 SHFLAGS='-shared -Wl,-h,$$(@F)'
3777 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3778 network_extralibs="-lsocket -lnsl"
3779 # When using suncc to build, the Solaris linker will mark
3780 # an executable with each instruction set encountered by
3781 # the Solaris assembler. As our libraries contain their own
3782 # guards for processor-specific code, instead suppress
3783 # generation of the HWCAPS ELF section on Solaris x86 only.
3784 enabled_all suncc x86 &&
3785 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3786 add_ldflags -Wl,-M,mapfile
3787 nm_default='nm -P -g'
3788 version_script='-M'
3789 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3790 ;;
3791 netbsd)
3792 disable symver
3793 oss_indev_extralibs="-lossaudio"
3794 oss_outdev_extralibs="-lossaudio"
3795 ;;
3796 openbsd|bitrig)
3797 disable symver
3798 SHFLAGS='-shared'
3799 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3800 SLIB_INSTALL_LINKS=
3801 oss_indev_extralibs="-lossaudio"
3802 oss_outdev_extralibs="-lossaudio"
3803 ;;
3804 dragonfly)
3805 disable symver
3806 ;;
3807 freebsd)
3808 ;;
3809 bsd/os)
3810 add_extralibs -lpoll -lgnugetopt
3811 ;;
3812 darwin)
3813 enabled ppc && add_asflags -force_cpusubtype_ALL
3814 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3815 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3816 add_ldflags -Wl,-dynamic,-search_paths_first
3817 SLIBSUF=".dylib"
3818 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3819 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3820 objformat="macho"
3821 enabled x86_64 && objformat="macho64"
3822 enabled_any pic shared ||
3823 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3824 check_header dispatch/dispatch.h &&
3825 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3826 ;;
3827 msys*)
3828 die "Native MSYS builds are discouraged, please use the MINGW environment."
3829 ;;
3830 mingw32*|mingw64*)
3831 if test $target_os = "mingw32ce"; then
3832 disable network
3833 else
3834 target_os=mingw32
3835 fi
3836 LIBTARGET=i386
3837 if enabled x86_64; then
3838 LIBTARGET="i386:x86-64"
3839 elif enabled arm; then
3840 LIBTARGET=arm-wince
3841 fi
3842 check_ldflags -Wl,--nxcompat
3843 check_ldflags -Wl,--dynamicbase
3844 shlibdir_default="$bindir_default"
3845 SLIBPREF=""
3846 SLIBSUF=".dll"
3847 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3848 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3849 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3850 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3851 SLIB_INSTALL_LINKS=
3852 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3853 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3854 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3855 objformat="win32"
3856 dlltool="${cross_prefix}dlltool"
3857 ranlib=:
3858 enable dos_paths
3859 ;;
3860 win32|win64)
3861 disable symver
3862 if enabled shared; then
3863 # Link to the import library instead of the normal static library
3864 # for shared libs.
3865 LD_LIB='%.lib'
3866 # Cannot build both shared and static libs with MSVC or icl.
3867 disable static
3868 fi
3869 shlibdir_default="$bindir_default"
3870 SLIBPREF=""
3871 SLIBSUF=".dll"
3872 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3873 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3874 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3875 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3876 SLIB_INSTALL_LINKS=
3877 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3878 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3879 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3880 objformat="win32"
3881 ranlib=:
3882 enable dos_paths
3883 ;;
3884 cygwin*)
3885 target_os=cygwin
3886 shlibdir_default="$bindir_default"
3887 SLIBPREF="cyg"
3888 SLIBSUF=".dll"
3889 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3890 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3891 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3892 SLIB_INSTALL_LINKS=
3893 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3894 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3895 objformat="win32"
3896 enable dos_paths
3897 ;;
3898 *-dos|freedos|opendos)
3899 network_extralibs="-lsocket"
3900 objformat="coff"
3901 enable dos_paths
3902 add_cppflags -U__STRICT_ANSI__
3903 ;;
3904 linux)
3905 enable dv1394
3906 enable section_data_rel_ro
3907 ;;
3908 irix*)
3909 target_os=irix
3910 ranlib="echo ignoring ranlib"
3911 ;;
3912 os/2*)
3913 ln_s="cp -f"
3914 objformat="aout"
3915 add_cppflags -D_GNU_SOURCE
3916 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3917 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3918 LIBSUF="_s.a"
3919 SLIBPREF=""
3920 SLIBSUF=".dll"
3921 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3922 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3923 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3924 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3925 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3926 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3927 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3928 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3929 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3930 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3931 enable dos_paths
3932 ;;
3933 gnu/kfreebsd)
3934 add_cppflags -D_BSD_SOURCE
3935 ;;
3936 gnu)
3937 ;;
3938 qnx)
3939 add_cppflags -D_QNX_SOURCE
3940 network_extralibs="-lsocket"
3941 ;;
3942 symbian)
3943 SLIBSUF=".dll"
3944 enable dos_paths
3945 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3946 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3947 add_ldflags -Wl,--target1-abs,--no-undefined \
3948 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3949 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3950 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3951 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3952 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3953 ;;
3954 osf1)
3955 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3956 ;;
3957 minix)
3958 ;;
3959 plan9)
3960 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3961 -D_REENTRANT_SOURCE \
3962 -D_RESEARCH_SOURCE \
3963 -DFD_SETSIZE=96 \
3964 -DHAVE_SOCK_OPTS
3965 add_compat strtod.o strtod=avpriv_strtod
3966 network_extralibs='-lbsd'
3967 exeobjs=compat/plan9/main.o
3968 cp_f='cp'
3969 ;;
3970 none)
3971 ;;
3972 *)
3973 die "Unknown OS '$target_os'."
3974 ;;
3975 esac
3976
3977 # determine libc flavour
3978
3979 probe_libc(){
3980 pfx=$1
3981 pfx_no_=${pfx%_}
3982 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3983 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3984 eval ${pfx}libc_type=uclibc
3985 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3986 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3987 eval ${pfx}libc_type=glibc
3988 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3989 # MinGW headers can be installed on Cygwin, so check for newlib first.
3990 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3991 eval ${pfx}libc_type=newlib
3992 add_${pfx}cppflags -U__STRICT_ANSI__
3993 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3994 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3995 eval ${pfx}libc_type=mingw64
3996 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3997 eval test \$${pfx_no_}cc_type = "gcc" &&
3998 add_${pfx}cppflags -D__printf__=__gnu_printf__
3999 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4000 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4001 eval ${pfx}libc_type=mingw32
4002 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4003 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4004 die "ERROR: MinGW32 runtime version must be >= 3.15."
4005 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4006 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4007 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4008 eval test \$${pfx_no_}cc_type = "gcc" &&
4009 add_${pfx}cppflags -D__printf__=__gnu_printf__
4010 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4011 eval ${pfx}libc_type=msvcrt
4012 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4013 if [ "$pfx" = host_ ]; then
4014 add_host_cppflags -Dsnprintf=_snprintf
4015 else
4016 add_compat strtod.o strtod=avpriv_strtod
4017 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4018 _snprintf=avpriv_snprintf \
4019 vsnprintf=avpriv_vsnprintf
4020 fi
4021 fi
4022 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4023 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4024 # 0x601 by default unless something else is set by the user.
4025 # This can easily lead to us detecting functions only present
4026 # in such new versions and producing binaries requiring windows 7.0.
4027 # Therefore explicitly set the default to XP unless the user has
4028 # set something else on the command line.
4029 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4030 # family. For these cases, configure is free to use any functions
4031 # found in the SDK headers by default. (Alternatively, we could force
4032 # _WIN32_WINNT to 0x0602 in that case.)
4033 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4034 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4035 #ifdef WINAPI_FAMILY
4036 #include <winapifamily.h>
4037 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4038 #error not desktop
4039 #endif
4040 #endif
4041 EOF
4042 if [ "$pfx" = "" ]; then
4043 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4044 fi
4045 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4046 eval ${pfx}libc_type=klibc
4047 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4048 eval ${pfx}libc_type=bionic
4049 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4050 eval ${pfx}libc_type=solaris
4051 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4052 else
4053 eval ${pfx}libc_type=default
4054 add_${pfx}cppflags -D_DEFAULT_SOURCE
4055 fi
4056 }
4057
4058 probe_libc
4059 test -n "$libc_type" && enable libc_$libc_type
4060 probe_libc host_
4061 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4062
4063 case $libc_type in
4064 bionic)
4065 add_compat strtod.o strtod=avpriv_strtod
4066 ;;
4067 esac
4068
4069 # hacks for compiler/libc/os combinations
4070
4071 if enabled_all tms470 libc_glibc; then
4072 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4073 add_cppflags -D__USER_LABEL_PREFIX__=
4074 add_cppflags -D__builtin_memset=memset
4075 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4076 add_cflags -pds=48 # incompatible redefinition of macro
4077 fi
4078
4079 if enabled_all ccc libc_glibc; then
4080 add_ldflags -Wl,-z,now # calls to libots crash without this
4081 fi
4082
4083 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4084 add_cppflags '-I\$(SRC_PATH)/compat/float'
4085
4086 esc(){
4087 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4088 }
4089
4090 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4091
4092 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4093
4094 set_default $PATHS_LIST
4095 set_default nm
4096
4097 # we need to build at least one lib type
4098 if ! enabled_any static shared; then
4099 cat <<EOF
4100 At least one library type must be built.
4101 Specify --enable-static to build the static libraries or --enable-shared to
4102 build the shared libraries as well. To only build the shared libraries specify
4103 --disable-static in addition to --enable-shared.
4104 EOF
4105 exit 1
4106 fi
4107
4108 die_license_disabled() {
4109 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4110 }
4111
4112 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4113 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4114 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4115
4116 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4117
4118 disabled optimizations || check_cflags -fomit-frame-pointer
4119
4120 enable_weak_pic() {
4121 disabled pic && return
4122 enable pic
4123 add_cppflags -DPIC
4124 case "$target_os" in
4125 mingw*|cygwin*)
4126 ;;
4127 *)
4128 add_cflags -fPIC
4129 ;;
4130 esac
4131 add_asflags -fPIC
4132 }
4133
4134 enabled pic && enable_weak_pic
4135
4136 check_cc <<EOF || die "Symbol mangling check failed."
4137 int ff_extern;
4138 EOF
4139 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4140 extern_prefix=${sym%%ff_extern*}
4141
4142 check_cc <<EOF && enable_weak inline_asm
4143 void foo(void) { __asm__ volatile ("" ::); }
4144 EOF
4145
4146 _restrict=
4147 for restrict_keyword in restrict __restrict__ __restrict; do
4148 check_cc <<EOF && _restrict=$restrict_keyword && break
4149 void foo(char * $restrict_keyword p);
4150 EOF
4151 done
4152
4153 check_cc <<EOF && enable pragma_deprecated
4154 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4155 EOF
4156
4157 check_cc <<EOF && enable attribute_packed
4158 struct { int x; } __attribute__((packed)) x;
4159 EOF
4160
4161 check_cc <<EOF && enable attribute_may_alias
4162 union { int x; } __attribute__((may_alias)) x;
4163 EOF
4164
4165 check_cc <<EOF || die "endian test failed"
4166 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4167 EOF
4168 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4169
4170 check_gas() {
4171 log "check_gas using '$as' as AS"
4172 # :vararg is used on aarch64, arm and ppc altivec
4173 check_as <<EOF || return 1
4174 .macro m n, y:vararg=0
4175 \n: .int \y
4176 .endm
4177 m x
4178 EOF
4179 # .altmacro is only used in arm asm
4180 ! enabled arm || check_as <<EOF || return 1
4181 .altmacro
4182 EOF
4183 enable gnu_as
4184 return 0
4185 }
4186
4187 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4188 nogas=:
4189 enabled_any arm aarch64 && nogas=die
4190 enabled_all ppc altivec && nogas=warn
4191 as_noop=-v
4192
4193 case $as_type in
4194 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4195 gcc) gaspp_as_type=gas ;;
4196 *) gaspp_as_type=$as_type ;;
4197 esac
4198
4199 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4200
4201 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4202 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4203
4204 if ! check_gas ; then
4205 as=${gas:=$as}
4206 check_gas || \
4207 $nogas "GNU assembler not found, install/update gas-preprocessor"
4208 fi
4209
4210 check_as <<EOF && enable as_func
4211 .func test
4212 .endfunc
4213 EOF
4214 fi
4215
4216 check_inline_asm inline_asm_labels '"1:\n"'
4217
4218 if enabled aarch64; then
4219 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4220 # internal assembler in clang 3.3 does not support this instruction
4221 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4222 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4223
4224 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4225
4226 elif enabled alpha; then
4227
4228 check_cflags -mieee
4229
4230 elif enabled arm; then
4231
4232 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4233 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4234 enabled thumb && check_cflags -mthumb || check_cflags -marm
4235
4236 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4237 enable vfp_args
4238 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4239 enable vfp_args
4240 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4241 case "${cross_prefix:-$cc}" in
4242 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4243 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4244 __asm__ (".eabi_attribute 28, 1");
4245 int main(void) { return 0; }
4246 EOF
4247 esac
4248 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4249 fi
4250
4251 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4252 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4253 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4254 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4255 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4256 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4257
4258 [ $target_os = linux ] || [ $target_os = android ] ||
4259 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4260 $ARCH_EXT_LIST_ARM
4261
4262 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4263
4264 check_as <<EOF && enable as_dn_directive
4265 ra .dn d0.i16
4266 .unreq ra
4267 EOF
4268 check_as <<EOF && enable as_fpu_directive
4269 .fpu neon
4270 EOF
4271
4272 # llvm's integrated assembler supports .object_arch from llvm 3.5
4273 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4274 .object_arch armv4
4275 EOF
4276
4277 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4278
4279 elif enabled mips; then
4280
4281 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4282
4283 # make sure that only an instruction set is enabled
4284 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4285
4286 if enabled mips64; then
4287 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4288 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4289 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4290 else
4291 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4292 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4293 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4294 fi
4295
4296 elif enabled parisc; then
4297
4298 if enabled gcc; then
4299 case $($cc -dumpversion) in
4300 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4301 esac
4302 fi
4303
4304 elif enabled ppc; then
4305
4306 enable local_aligned_8 local_aligned_16 local_aligned_32
4307
4308 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4309 check_inline_asm ibm_asm '"add 0, 0, 0"'
4310 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4311 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4312
4313 # AltiVec flags: The FSF version of GCC differs from the Apple version
4314 if enabled altivec; then
4315 check_cflags -maltivec -mabi=altivec &&
4316 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4317 check_cflags -faltivec
4318
4319 # check if our compiler supports Motorola AltiVec C API
4320 check_cc <<EOF || disable altivec
4321 $inc_altivec_h
4322 int main(void) {
4323 vector signed int v1 = (vector signed int) { 0 };
4324 vector signed int v2 = (vector signed int) { 1 };
4325 v1 = vec_add(v1, v2);
4326 return 0;
4327 }
4328 EOF
4329
4330 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4331 fi
4332
4333 if enabled vsx; then
4334 check_cflags -mvsx &&
4335 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4336 fi
4337
4338 if enabled power8; then
4339 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4340 fi
4341
4342 elif enabled x86; then
4343
4344 check_builtin rdtsc intrin.h "__rdtsc()"
4345 check_builtin mm_empty mmintrin.h "_mm_empty()"
4346
4347 enable local_aligned_8 local_aligned_16 local_aligned_32
4348
4349 # check whether EBP is available on x86
4350 # As 'i' is stored on the stack, this program will crash
4351 # if the base pointer is used to access it because the
4352 # base pointer is cleared in the inline assembly code.
4353 check_exec_crash <<EOF && enable ebp_available
4354 volatile int i=0;
4355 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4356 return i;
4357 EOF
4358
4359 # check whether EBX is available on x86
4360 check_inline_asm ebx_available '""::"b"(0)' &&
4361 check_inline_asm ebx_available '"":::"%ebx"'
4362
4363 # check whether xmm clobbers are supported
4364 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4365
4366 # check whether binutils is new enough to compile SSSE3/MMXEXT
4367 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4368 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4369
4370 if ! disabled_any asm mmx yasm; then
4371 if check_cmd $yasmexe --version; then
4372 enabled x86_64 && yasm_extra="-m amd64"
4373 yasm_debug="-g dwarf2"
4374 elif check_cmd nasm -v; then
4375 yasmexe=nasm
4376 yasm_debug="-g -F dwarf"
4377 enabled x86_64 && test "