configure: Stop using dlltool to create an import library
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [avbuild/config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix_default]
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
113 Component options:
114 --disable-doc do not build documentation
115 --disable-pod2man do not build manual pages
116 --disable-texi2html do not build HTML documentation
117 --disable-avdevice disable libavdevice build
118 --disable-avcodec disable libavcodec build
119 --disable-avformat disable libavformat build
120 --disable-avutil disable libavutil build
121 --disable-swscale disable libswscale build
122 --disable-avfilter disable video filter support [no]
123 --disable-avresample disable libavresample build [no]
124 --disable-pthreads disable pthreads [auto]
125 --disable-w32threads disable Win32 threads [auto]
126 --disable-network disable network support [no]
127 --disable-dct disable DCT code
128 --disable-error-resilience disable error resilience code
129 --disable-lsp disable LSP code
130 --disable-lzo disable LZO decoder code
131 --disable-mdct disable MDCT code
132 --disable-rdft disable RDFT code
133 --disable-fft disable FFT code
134 --disable-faan disable floating point AAN (I)DCT code
135
136 Individual component options:
137 --disable-everything disable all components listed below
138 --disable-encoder=NAME disable encoder NAME
139 --enable-encoder=NAME enable encoder NAME
140 --disable-encoders disable all encoders
141 --disable-decoder=NAME disable decoder NAME
142 --enable-decoder=NAME enable decoder NAME
143 --disable-decoders disable all decoders
144 --disable-hwaccel=NAME disable hwaccel NAME
145 --enable-hwaccel=NAME enable hwaccel NAME
146 --disable-hwaccels disable all hwaccels
147 --disable-muxer=NAME disable muxer NAME
148 --enable-muxer=NAME enable muxer NAME
149 --disable-muxers disable all muxers
150 --disable-demuxer=NAME disable demuxer NAME
151 --enable-demuxer=NAME enable demuxer NAME
152 --disable-demuxers disable all demuxers
153 --enable-parser=NAME enable parser NAME
154 --disable-parser=NAME disable parser NAME
155 --disable-parsers disable all parsers
156 --enable-bsf=NAME enable bitstream filter NAME
157 --disable-bsf=NAME disable bitstream filter NAME
158 --disable-bsfs disable all bitstream filters
159 --enable-protocol=NAME enable protocol NAME
160 --disable-protocol=NAME disable protocol NAME
161 --disable-protocols disable all protocols
162 --enable-indev=NAME enable input device NAME
163 --disable-indev=NAME disable input device NAME
164 --disable-indevs disable input devices
165 --disable-devices disable all devices
166 --enable-filter=NAME enable filter NAME
167 --disable-filter=NAME disable filter NAME
168 --disable-filters disable all filters
169
170 External library support:
171
172 Using any of the following switches will allow Libav to link to the
173 corresponding external library. All the components depending on that library
174 will become enabled, if all their other dependencies are met and they are not
175 explicitly disabled. E.g. --enable-libwavpack will enable linking to
176 libwavpack and allow the libwavpack encoder to be built, unless it is
177 specifically disabled with --disable-encoder=libwavpack.
178
179 Note that only the system libraries are auto-detected. All the other external
180 libraries must be explicitly enabled.
181
182 Also note that the following help text describes the purpose of the libraries
183 themselves, not all their features will necessarily be usable by Libav.
184
185 --enable-avisynth video frameserver
186 --enable-avxsynth Linux version of AviSynth
187 --enable-bzlib bzip2 compression [autodetect]
188 --enable-frei0r video filtering plugins
189 --enable-gnutls crypto
190 --enable-libbs2b Bauer stereophonic-to-binaural DSP
191 --enable-libcdio audio CD input
192 --enable-libdc1394 IEEE 1394/Firewire camera input
193 --enable-libdcadec DCA audio decoding
194 --enable-libfaac AAC audio encoding
195 --enable-libfdk-aac AAC audio encoding/decoding
196 --enable-libfontconfig font configuration and management
197 --enable-libfreetype font rendering
198 --enable-libgsm GSM audio encoding/decoding
199 --enable-libhdcd HDCD decoding filter
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libjack JACK audio sound server
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-cuvid Nvidia CUVID video decode acceleration
236 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
237 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
238 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
239 --enable-libnpp Nvidia CUDA processing
240 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
241 --enable-nvenc Nvidia video encoding
242 --enable-omx OpenMAX IL
243 --enable-omx-rpi OpenMAX IL for Raspberry Pi
244 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
245 --enable-vda Apple Video Decode Acceleration [auto]
246 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
247
248 Toolchain options:
249 --arch=ARCH select architecture [$arch]
250 --cpu=CPU select the minimum required CPU (affects
251 instruction selection, may crash on older CPUs)
252 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
253 --enable-cross-compile assume a cross-compiler is used
254 --sysroot=PATH root of cross-build tree
255 --sysinclude=PATH location of cross-build system headers
256 --target-os=OS compiler targets OS [$target_os]
257 --target-exec=CMD command to run executables on target
258 --target-path=DIR path to view of build directory on target
259 --target-samples=DIR path to samples directory on target
260 --toolchain=NAME set tool defaults according to NAME
261 --nm=NM use nm tool
262 --ar=AR use archive tool AR [$ar_default]
263 --as=AS use assembler AS [$as_default]
264 --cc=CC use C compiler CC [$cc_default]
265 --objcc=OCC use ObjC compiler OCC [$cc_default]
266 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
267 --ld=LD use linker LD
268 --x86asmexe=X86ASM use x86 assembler X86ASM
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
290
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
300
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-x86asm disable use of standalone x86 assembly
328
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --disable-valgrind-backtrace do not print a backtrace under Valgrind
341 (only applies to --disable-optimizations builds)
342 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
343 in the name) of tests whose result is ignored
344
345 NOTE: Object files are built at the place where configure is launched.
346 EOF
347 exit 0
348 }
349
350 quotes='""'
351
352 log(){
353 echo "$@" >> $logfile
354 }
355
356 log_file(){
357 log BEGIN $1
358 i=1
359 while read line; do
360 printf '%5s %s\n' "${i}" "${line}"
361 i=$(($i+1))
362 done < $1 >> $logfile
363 log END $1
364 }
365
366 echolog(){
367 log "$@"
368 echo "$@"
369 }
370
371 warn(){
372 log "WARNING: $*"
373 WARNINGS="${WARNINGS}WARNING: $*\n"
374 }
375
376 die(){
377 echolog "$@"
378 cat <<EOF
379
380 If you think configure made a mistake, make sure you are using the latest
381 version from Git. If the latest version fails, report the problem to the
382 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
383 EOF
384 if disabled logging; then
385 cat <<EOF
386 Rerun configure with logging enabled (do not use --disable-logging), and
387 include the log this produces with your report.
388 EOF
389 else
390 cat <<EOF
391 Include the log file "$logfile" produced by configure as this will help
392 solving the problem.
393 EOF
394 fi
395 exit 1
396 }
397
398 # Avoid locale weirdness, besides we really just want to translate ASCII.
399 toupper(){
400 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
401 }
402
403 tolower(){
404 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
405 }
406
407 c_escape(){
408 echo "$*" | sed 's/["\\]/\\\0/g'
409 }
410
411 sh_quote(){
412 v=$(echo "$1" | sed "s/'/'\\\\''/g")
413 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
414 echo "$v"
415 }
416
417 cleanws(){
418 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
419 }
420
421 filter(){
422 pat=$1
423 shift
424 for v; do
425 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
426 done
427 }
428
429 filter_out(){
430 pat=$1
431 shift
432 for v; do
433 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
434 done
435 }
436
437 map(){
438 m=$1
439 shift
440 for v; do eval $m; done
441 }
442
443 add_suffix(){
444 suffix=$1
445 shift
446 for v; do echo ${v}${suffix}; done
447 }
448
449 set_all(){
450 value=$1
451 shift
452 for var in $*; do
453 eval $var=$value
454 done
455 }
456
457 set_weak(){
458 value=$1
459 shift
460 for var; do
461 eval : \${$var:=$value}
462 done
463 }
464
465 sanitize_var_name(){
466 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
467 }
468
469 set_sanitized(){
470 var=$1
471 shift
472 eval $(sanitize_var_name "$var")='$*'
473 }
474
475 get_sanitized(){
476 eval echo \$$(sanitize_var_name "$1")
477 }
478
479 pushvar(){
480 for pvar in $*; do
481 eval level=\${${pvar}_level:=0}
482 eval ${pvar}_${level}="\$$pvar"
483 eval ${pvar}_level=$(($level+1))
484 done
485 }
486
487 popvar(){
488 for pvar in $*; do
489 eval level=\${${pvar}_level:-0}
490 test $level = 0 && continue
491 eval level=$(($level-1))
492 eval $pvar="\${${pvar}_${level}}"
493 eval ${pvar}_level=$level
494 eval unset ${pvar}_${level}
495 done
496 }
497
498 enable(){
499 set_all yes $*
500 }
501
502 disable(){
503 set_all no $*
504 }
505
506 enable_weak(){
507 set_weak yes $*
508 }
509
510 disable_weak(){
511 set_weak no $*
512 }
513
514 enable_sanitized(){
515 for var; do
516 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517 done
518 }
519
520 disable_sanitized(){
521 for var; do
522 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
523 done
524 }
525
526 do_enable_deep(){
527 for var; do
528 enabled $var && continue
529 eval sel="\$${var}_select"
530 eval sgs="\$${var}_suggest"
531 pushvar var sgs
532 enable_deep $sel
533 popvar sgs
534 enable_deep_weak $sgs
535 popvar var
536 done
537 }
538
539 enable_deep(){
540 do_enable_deep $*
541 enable $*
542 }
543
544 enable_deep_weak(){
545 for var; do
546 disabled $var && continue
547 pushvar var
548 do_enable_deep $var
549 popvar var
550 enable_weak $var
551 done
552 }
553
554 enabled(){
555 test "${1#!}" = "$1" && op== || op=!=
556 eval test "x\$${1#!}" $op "xyes"
557 }
558
559 disabled(){
560 test "${1#!}" = "$1" && op== || op=!=
561 eval test "x\$${1#!}" $op "xno"
562 }
563
564 enabled_all(){
565 for opt; do
566 enabled $opt || return 1
567 done
568 }
569
570 disabled_all(){
571 for opt; do
572 disabled $opt || return 1
573 done
574 }
575
576 enabled_any(){
577 for opt; do
578 enabled $opt && return 0
579 done
580 }
581
582 disabled_any(){
583 for opt; do
584 disabled $opt && return 0
585 done
586 return 1
587 }
588
589 set_default(){
590 for opt; do
591 eval : \${$opt:=\$${opt}_default}
592 done
593 }
594
595 is_in(){
596 value=$1
597 shift
598 for var in $*; do
599 [ $var = $value ] && return 0
600 done
601 return 1
602 }
603
604 check_deps(){
605 for cfg; do
606 enabled ${cfg}_checking && die "Circular dependency for $cfg."
607 disabled ${cfg}_checking && continue
608 enable ${cfg}_checking
609
610 eval dep_all="\$${cfg}_deps"
611 eval dep_any="\$${cfg}_deps_any"
612 eval dep_con="\$${cfg}_conflict"
613 eval dep_sel="\$${cfg}_select"
614 eval dep_sgs="\$${cfg}_suggest"
615 eval dep_ifa="\$${cfg}_if"
616 eval dep_ifn="\$${cfg}_if_any"
617
618 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
619 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
620 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
621
622 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
623 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
624 enabled_all $dep_all || disable $cfg
625 enabled_any $dep_any || disable $cfg
626 disabled_all $dep_con || disable $cfg
627 disabled_any $dep_sel && disable $cfg
628
629 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
630
631 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
632 # filter out library deps, these do not belong in extralibs
633 is_in $dep $LIBRARY_LIST && continue
634 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
635 done
636
637 disable ${cfg}_checking
638 done
639 }
640
641 print_config(){
642 pfx=$1
643 files=$2
644 shift 2
645 map 'eval echo "$v \${$v:-no}"' "$@" |
646 awk "BEGIN { split(\"$files\", files) }
647 {
648 c = \"$pfx\" toupper(\$1);
649 v = \$2;
650 sub(/yes/, 1, v);
651 sub(/no/, 0, v);
652 for (f in files) {
653 file = files[f];
654 if (file ~ /\\.h\$/) {
655 printf(\"#define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.asm\$/) {
657 printf(\"%%define %s %d\\n\", c, v) >>file;
658 } else if (file ~ /\\.mak\$/) {
659 n = -v ? \"\" : \"!\";
660 printf(\"%s%s=yes\\n\", n, c) >>file;
661 }
662 }
663 }"
664 }
665
666 print_enabled(){
667 suf=$1
668 shift
669 for v; do
670 enabled $v && printf "%s\n" ${v%$suf}
671 done
672 }
673
674 append(){
675 var=$1
676 shift
677 eval "$var=\"\$$var $*\""
678 }
679
680 prepend(){
681 var=$1
682 shift
683 eval "$var=\"$* \$$var\""
684 }
685
686 unique(){
687 var=$1
688 uniq_list=""
689 for tok in $(eval echo \$$var); do
690 uniq_list="$(filter_out $tok $uniq_list) $tok"
691 done
692 eval "$var=\"${uniq_list}\""
693 }
694
695 resolve(){
696 var=$1
697 tmpvar=
698 for entry in $(eval echo \$$var); do
699 tmpvar="$tmpvar $(eval echo \$${entry})"
700 done
701 eval "$var=\"${tmpvar}\""
702 }
703
704 add_cppflags(){
705 append CPPFLAGS "$@"
706 }
707
708 add_cflags(){
709 append CFLAGS $($cflags_filter "$@")
710 }
711
712 add_cflags_headers(){
713 append CFLAGS_HEADERS $($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_ldsoflags(){
733 append LDSOFLAGS $($ldflags_filter "$@")
734 }
735
736 add_stripflags(){
737 append STRIPFLAGS "$@"
738 }
739
740 add_extralibs(){
741 prepend extralibs $($ldflags_filter "$@")
742 }
743
744 add_host_cppflags(){
745 append host_cppflags "$@"
746 }
747
748 add_host_cflags(){
749 append host_cflags $($host_cflags_filter "$@")
750 }
751
752 add_host_ldflags(){
753 append host_ldflags $($host_ldflags_filter "$@")
754 }
755
756 add_compat(){
757 append compat_objs $1
758 shift
759 map 'add_cppflags -D$v' "$@"
760 }
761
762 check_cmd(){
763 log "$@"
764 "$@" >> $logfile 2>&1
765 }
766
767 cc_o(){
768 eval printf '%s\\n' $CC_O
769 }
770
771 cc_e(){
772 eval printf '%s\\n' $CC_E
773 }
774
775 check_cc(){
776 log check_cc "$@"
777 cat > $TMPC
778 log_file $TMPC
779 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
780 }
781
782 check_objcc(){
783 log check_objcc "$@"
784 cat > $TMPC
785 log_file $TMPC
786 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
787 }
788
789 check_cpp(){
790 log check_cpp "$@"
791 cat > $TMPC
792 log_file $TMPC
793 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
794 }
795
796 as_o(){
797 eval printf '%s\\n' $AS_O
798 }
799
800 check_as(){
801 log check_as "$@"
802 cat > $TMPS
803 log_file $TMPS
804 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
805 }
806
807 check_inline_asm(){
808 log check_inline_asm "$@"
809 name="$1"
810 code="$2"
811 shift 2
812 disable $name
813 check_cc "$@" <<EOF && enable $name
814 void foo(void){ __asm__ volatile($code); }
815 EOF
816 }
817
818 check_insn(){
819 log check_insn "$@"
820 check_inline_asm ${1}_inline "\"$2\""
821 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
822 }
823
824 check_x86asm(){
825 log check_x86asm "$@"
826 echo "$1" > $TMPS
827 log_file $TMPS
828 shift 1
829 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
830 }
831
832 ld_o(){
833 eval printf '%s\\n' $LD_O
834 }
835
836 check_ld(){
837 log check_ld "$@"
838 flags=$(filter_out '-l*' "$@")
839 libs=$(filter '-l*' "$@")
840 check_cc $($cflags_filter $flags) || return
841 flags=$($ldflags_filter $flags)
842 libs=$($ldflags_filter $libs)
843 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
844 }
845
846 print_include(){
847 hdr=$1
848 test "${hdr%.h}" = "${hdr}" &&
849 echo "#include $hdr" ||
850 echo "#include <$hdr>"
851 }
852
853 check_code(){
854 log check_code "$@"
855 check=$1
856 headers=$2
857 code=$3
858 shift 3
859 {
860 for hdr in $headers; do
861 print_include $hdr
862 done
863 echo "int main(void) { $code; return 0; }"
864 } | check_$check "$@"
865 }
866
867 check_cppflags(){
868 log check_cppflags "$@"
869 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
870 #include <stdlib.h>;
871 EOF
872 }
873
874 test_cflags(){
875 log test_cflags "$@"
876 set -- $($cflags_filter "$@")
877 check_cc "$@" <<EOF
878 int x;
879 EOF
880 }
881
882 check_cflags(){
883 log check_cflags "$@"
884 test_cflags "$@" && add_cflags "$@"
885 }
886
887 test_objcflags(){
888 log test_objcflags "$@"
889 set -- $($objcflags_filter "$@")
890 check_objcc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_objcflags(){
896 log check_objcflags "$@"
897 test_objcflags "$@" && add_objcflags "$@"
898 }
899
900 test_ldflags(){
901 log test_ldflags "$@"
902 check_ld "$@" <<EOF
903 int main(void){ return 0; }
904 EOF
905 }
906
907 check_ldflags(){
908 log check_ldflags "$@"
909 test_ldflags "$@" && add_ldflags "$@"
910 }
911
912 test_stripflags(){
913 log test_stripflags "$@"
914 # call check_cc to get a fresh TMPO
915 check_cc <<EOF
916 int main(void) { return 0; }
917 EOF
918 check_cmd $strip $STRIPFLAGS "$@" $TMPO
919 }
920
921 check_stripflags(){
922 log check_stripflags "$@"
923 test_stripflags "$@" && add_stripflags "$@"
924 }
925
926 check_header(){
927 log check_header "$@"
928 headers=$1
929 shift
930 disable_sanitized $headers
931 {
932 for hdr in $headers; do
933 print_include $hdr
934 done
935 echo "int x;"
936 } | check_cpp "$@" && enable_sanitized $headers
937 }
938
939 check_func(){
940 log check_func "$@"
941 func=$1
942 shift
943 disable $func
944 check_ld "$@" <<EOF && enable $func
945 extern int $func();
946 int main(void){ $func(); }
947 EOF
948 }
949
950 check_mathfunc(){
951 log check_mathfunc "$@"
952 func=$1
953 narg=$2
954 shift 2
955 test $narg = 2 && args="f, g" || args="f"
956 disable $func
957 check_ld "$@" <<EOF && enable $func
958 #include <math.h>
959 float foo(float f, float g) { return $func($args); }
960 int main(void){ return 0; }
961 EOF
962 }
963
964 check_func_headers(){
965 log check_func_headers "$@"
966 headers=$1
967 funcs=$2
968 shift 2
969 {
970 for hdr in $headers; do
971 print_include $hdr
972 done
973 for func in $funcs; do
974 echo "long check_$func(void) { return (long) $func; }"
975 done
976 echo "int main(void) { return 0; }"
977 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
978 }
979
980 check_cpp_condition(){
981 log check_cpp_condition "$@"
982 header=$1
983 condition=$2
984 shift 2
985 check_cpp "$@" <<EOF
986 #include <$header>
987 #if !($condition)
988 #error "unsatisfied condition: $condition"
989 #endif
990 EOF
991 }
992
993 test_cflags_cpp(){
994 log test_cflags_cpp "$@"
995 flags=$1
996 condition=$2
997 shift 2
998 set -- $($cflags_filter "$flags")
999 check_cpp "$@" <<EOF
1000 #if !($condition)
1001 #error "unsatisfied condition: $condition"
1002 #endif
1003 EOF
1004 }
1005
1006 check_lib(){
1007 log check_lib "$@"
1008 name="$1"
1009 headers="$2"
1010 funcs="$3"
1011 shift 3
1012 disable $name
1013 check_func_headers "$headers" "$funcs" "$@" &&
1014 enable $name && eval ${name}_extralibs="\$@"
1015 }
1016
1017 test_pkg_config(){
1018 log test_pkg_config "$@"
1019 name="$1"
1020 pkg_version="$2"
1021 pkg="${2%% *}"
1022 headers="$3"
1023 funcs="$4"
1024 shift 4
1025 disable $name
1026 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1027 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1028 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1029 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1030 enable $name &&
1031 set_sanitized "${name}_cflags" $pkg_cflags &&
1032 set_sanitized "${name}_extralibs" $pkg_libs
1033 }
1034
1035 check_pkg_config(){
1036 log check_pkg_config "$@"
1037 name="$1"
1038 test_pkg_config "$@" &&
1039 eval add_cflags \$${name}_cflags
1040 }
1041
1042 check_exec(){
1043 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1044 }
1045
1046 check_exec_crash(){
1047 log check_exec_crash "$@"
1048 code=$(cat)
1049
1050 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1051 # are safe but may not be available everywhere. Thus we use
1052 # raise(SIGTERM) instead. The check is run in a subshell so we
1053 # can redirect the "Terminated" message from the shell. SIGBUS
1054 # is not defined by standard C so it is used conditionally.
1055
1056 (check_exec "$@") >> $logfile 2>&1 <<EOF
1057 #include <signal.h>
1058 static void sighandler(int sig){
1059 raise(SIGTERM);
1060 }
1061 int foo(void){
1062 $code
1063 }
1064 int (*func_ptr)(void) = foo;
1065 int main(void){
1066 signal(SIGILL, sighandler);
1067 signal(SIGFPE, sighandler);
1068 signal(SIGSEGV, sighandler);
1069 #ifdef SIGBUS
1070 signal(SIGBUS, sighandler);
1071 #endif
1072 return func_ptr();
1073 }
1074 EOF
1075 }
1076
1077 check_type(){
1078 log check_type "$@"
1079 headers=$1
1080 type=$2
1081 shift 2
1082 disable_sanitized "$type"
1083 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1084 }
1085
1086 check_struct(){
1087 log check_struct "$@"
1088 headers=$1
1089 struct=$2
1090 member=$3
1091 shift 3
1092 disable_sanitized "${struct}_${member}"
1093 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1094 enable_sanitized "${struct}_${member}"
1095 }
1096
1097 check_builtin(){
1098 log check_builtin "$@"
1099 name=$1
1100 headers=$2
1101 builtin=$3
1102 shift 3
1103 disable "$name"
1104 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1105 }
1106
1107 check_compile_assert(){
1108 log check_compile_assert "$@"
1109 name=$1
1110 headers=$2
1111 condition=$3
1112 shift 3
1113 disable "$name"
1114 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1115 }
1116
1117 require(){
1118 log require "$@"
1119 name_version="$1"
1120 name="${1%% *}"
1121 headers="$2"
1122 func="$3"
1123 shift 3
1124 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1125 }
1126
1127 require_header(){
1128 log require "$@"
1129 headers="$1"
1130 shift
1131 check_header "$headers" "$@" || die "ERROR: $headers not found"
1132 }
1133
1134 require_cpp_condition(){
1135 log require "$@"
1136 header="$1"
1137 condition="$2"
1138 shift 2
1139 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1140 }
1141
1142 require_pkg_config(){
1143 log require_pkg_config "$@"
1144 pkg_version="$2"
1145 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1146 }
1147
1148 hostcc_e(){
1149 eval printf '%s\\n' $HOSTCC_E
1150 }
1151
1152 hostcc_o(){
1153 eval printf '%s\\n' $HOSTCC_O
1154 }
1155
1156 check_host_cc(){
1157 log check_host_cc "$@"
1158 cat > $TMPC
1159 log_file $TMPC
1160 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1161 }
1162
1163 check_host_cpp(){
1164 log check_host_cpp "$@"
1165 cat > $TMPC
1166 log_file $TMPC
1167 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1168 }
1169
1170 check_host_cppflags(){
1171 log check_host_cppflags "$@"
1172 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1173 #include <stdlib.h>;
1174 EOF
1175 }
1176
1177 check_host_cflags(){
1178 log check_host_cflags "$@"
1179 set -- $($host_cflags_filter "$@")
1180 check_host_cc "$@" <<EOF && append host_cflags "$@"
1181 int x;
1182 EOF
1183 }
1184
1185 check_host_cpp_condition(){
1186 log check_host_cpp_condition "$@"
1187 header=$1
1188 condition=$2
1189 shift 2
1190 check_host_cpp "$@" <<EOF
1191 #include <$header>
1192 #if !($condition)
1193 #error "unsatisfied condition: $condition"
1194 #endif
1195 EOF
1196 }
1197
1198 apply(){
1199 file=$1
1200 shift
1201 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1202 }
1203
1204 cp_if_changed(){
1205 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1206 mkdir -p "$(dirname $2)"
1207 cp -f "$1" "$2"
1208 }
1209
1210 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1211 # system-dependent things.
1212
1213 AVCODEC_COMPONENTS="
1214 bsfs
1215 decoders
1216 encoders
1217 hwaccels
1218 parsers
1219 "
1220
1221 AVDEVICE_COMPONENTS="
1222 indevs
1223 "
1224 AVFILTER_COMPONENTS="
1225 filters
1226 "
1227 AVFORMAT_COMPONENTS="
1228 demuxers
1229 muxers
1230 protocols
1231 "
1232
1233 COMPONENT_LIST="
1234 $AVCODEC_COMPONENTS
1235 $AVDEVICE_COMPONENTS
1236 $AVFILTER_COMPONENTS
1237 $AVFORMAT_COMPONENTS
1238 "
1239
1240 EXAMPLE_LIST="
1241 decode_audio_example
1242 decode_video_example
1243 encode_audio_example
1244 encode_video_example
1245 filter_audio_example
1246 metadata_example
1247 output_example
1248 qsvdec_example
1249 transcode_aac_example
1250 "
1251
1252 # catchall list of things that require external libs to link
1253 EXTRALIBS_LIST="
1254 cpu_init
1255 cws2fws
1256 "
1257
1258 HWACCEL_LIBRARY_NONFREE_LIST="
1259 cuda
1260 cuvid
1261 libnpp
1262 "
1263 HWACCEL_LIBRARY_LIST="
1264 $HWACCEL_LIBRARY_NONFREE_LIST
1265 d3d11va
1266 dxva2
1267 libmfx
1268 mmal
1269 nvenc
1270 omx
1271 vaapi
1272 vda
1273 vdpau
1274 "
1275
1276 EXTERNAL_LIBRARY_GPL_LIST="
1277 libcdio
1278 libx264
1279 libx265
1280 libxavs
1281 libxvid
1282 "
1283
1284 EXTERNAL_LIBRARY_NONFREE_LIST="
1285 libfaac
1286 libfdk_aac
1287 openssl
1288 "
1289
1290 EXTERNAL_LIBRARY_VERSION3_LIST="
1291 libopencore_amrnb
1292 libopencore_amrwb
1293 libvo_aacenc
1294 libvo_amrwbenc
1295 "
1296
1297 EXTERNAL_LIBRARY_LIST="
1298 $EXTERNAL_LIBRARY_GPL_LIST
1299 $EXTERNAL_LIBRARY_NONFREE_LIST
1300 $EXTERNAL_LIBRARY_VERSION3_LIST
1301 avisynth
1302 avxsynth
1303 frei0r
1304 gnutls
1305 libbs2b
1306 libdc1394
1307 libdcadec
1308 libfontconfig
1309 libfreetype
1310 libgsm
1311 libhdcd
1312 libilbc
1313 libjack
1314 libkvazaar
1315 libmp3lame
1316 libopencv
1317 libopenh264
1318 libopenjpeg
1319 libopus
1320 libpulse
1321 librtmp
1322 libschroedinger
1323 libsnappy
1324 libspeex
1325 libtheora
1326 libtwolame
1327 libvorbis
1328 libvpx
1329 libwavpack
1330 libwebp
1331 libxcb
1332 libxcb_shm
1333 libxcb_xfixes
1334 "
1335
1336 SYSTEM_LIBRARY_LIST="
1337 bzlib
1338 zlib
1339 "
1340
1341 FEATURE_LIST="
1342 gray
1343 hardcoded_tables
1344 omx_rpi
1345 runtime_cpudetect
1346 safe_bitstream_reader
1347 shared
1348 small
1349 sram
1350 static
1351 swscale_alpha
1352 "
1353
1354 LIBRARY_LIST="
1355 avcodec
1356 avdevice
1357 avfilter
1358 avformat
1359 avresample
1360 avutil
1361 swscale
1362 "
1363
1364 LICENSE_LIST="
1365 gpl
1366 nonfree
1367 version3
1368 "
1369
1370 PROGRAM_LIST="
1371 avconv
1372 avplay
1373 avprobe
1374 "
1375
1376 SUBSYSTEM_LIST="
1377 dct
1378 doc
1379 error_resilience
1380 faan
1381 fft
1382 lsp
1383 lzo
1384 mdct
1385 network
1386 rdft
1387 "
1388
1389 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1390 CONFIG_LIST="
1391 $EXAMPLE_LIST
1392 $EXTERNAL_LIBRARY_LIST
1393 $HWACCEL_LIBRARY_LIST
1394 $FEATURE_LIST
1395 $LICENSE_LIST
1396 $LIBRARY_LIST
1397 $PROGRAM_LIST
1398 $SUBSYSTEM_LIST
1399 $SYSTEM_LIBRARY_LIST
1400 neon_clobber_test
1401 pic
1402 pod2man
1403 texi2html
1404 thumb
1405 valgrind_backtrace
1406 xmm_clobber_test
1407 $COMPONENT_LIST
1408 "
1409
1410 THREADS_LIST="
1411 pthreads
1412 w32threads
1413 "
1414
1415 ATOMICS_LIST="
1416 atomics_gcc
1417 atomics_suncc
1418 atomics_win32
1419 "
1420
1421 ARCH_LIST="
1422 aarch64
1423 alpha
1424 arm
1425 avr32
1426 avr32_ap
1427 avr32_uc
1428 bfin
1429 ia64
1430 m68k
1431 mips
1432 mips64
1433 parisc
1434 ppc
1435 ppc64
1436 s390
1437 sh4
1438 sparc
1439 sparc64
1440 tilegx
1441 tilepro
1442 tomi
1443 x86
1444 x86_32
1445 x86_64
1446 "
1447
1448 ARCH_EXT_LIST_ARM="
1449 armv5te
1450 armv6
1451 armv6t2
1452 armv8
1453 neon
1454 vfp
1455 vfpv3
1456 "
1457
1458 ARCH_EXT_LIST_X86_SIMD="
1459 amd3dnow
1460 amd3dnowext
1461 avx
1462 avx2
1463 fma3
1464 fma4
1465 mmx
1466 mmxext
1467 sse
1468 sse2
1469 sse3
1470 sse4
1471 sse42
1472 ssse3
1473 xop
1474 "
1475
1476 ARCH_EXT_LIST_PPC="
1477 altivec
1478 dcbzl
1479 ldbrx
1480 power8
1481 ppc4xx
1482 vsx
1483 "
1484
1485 ARCH_EXT_LIST_X86="
1486 $ARCH_EXT_LIST_X86_SIMD
1487 cpunop
1488 i686
1489 "
1490
1491 ARCH_EXT_LIST_MIPS="
1492 loongson
1493 mips32r1
1494 mips64r1
1495 mips32r2
1496 mips64r2
1497 mips32r6
1498 mips64r6
1499 "
1500
1501 ARCH_EXT_LIST="
1502 $ARCH_EXT_LIST_ARM
1503 $ARCH_EXT_LIST_MIPS
1504 $ARCH_EXT_LIST_PPC
1505 $ARCH_EXT_LIST_X86
1506 vis
1507 "
1508
1509 ARCH_FEATURES="
1510 aligned_stack
1511 fast_64bit
1512 fast_clz
1513 fast_cmov
1514 local_aligned_8
1515 local_aligned_16
1516 local_aligned_32
1517 simd_align_16
1518 simd_align_32
1519 "
1520
1521 BUILTIN_LIST="
1522 atomic_cas_ptr
1523 machine_rw_barrier
1524 MemoryBarrier
1525 mm_empty
1526 rdtsc
1527 sem_timedwait
1528 sync_val_compare_and_swap
1529 "
1530 HAVE_LIST_CMDLINE="
1531 inline_asm
1532 symver
1533 x86asm
1534 "
1535
1536 HAVE_LIST_PUB="
1537 bigendian
1538 fast_unaligned
1539 "
1540
1541 HEADERS_LIST="
1542 AVFoundation_AVFoundation_h
1543 arpa_inet_h
1544 cdio_paranoia_h
1545 cdio_paranoia_paranoia_h
1546 dispatch_dispatch_h
1547 dev_bktr_ioctl_bt848_h
1548 dev_bktr_ioctl_meteor_h
1549 dev_ic_bt8xx_h
1550 dev_video_bktr_ioctl_bt848_h
1551 dev_video_meteor_ioctl_meteor_h
1552 direct_h
1553 dxgidebug_h
1554 dxva_h
1555 io_h
1556 machine_ioctl_bt848_h
1557 machine_ioctl_meteor_h
1558 malloc_h
1559 poll_h
1560 sys_param_h
1561 sys_resource_h
1562 sys_select_h
1563 sys_soundcard_h
1564 sys_time_h
1565 sys_un_h
1566 sys_videoio_h
1567 unistd_h
1568 valgrind_valgrind_h
1569 windows_h
1570 winsock2_h
1571 "
1572
1573 INTRINSICS_LIST="
1574 intrinsics_neon
1575 "
1576
1577 MATH_FUNCS="
1578 atanf
1579 atan2f
1580 cbrtf
1581 cosf
1582 exp2
1583 exp2f
1584 expf
1585 isinf
1586 isnan
1587 ldexpf
1588 llrint
1589 llrintf
1590 log2
1591 log2f
1592 log10f
1593 lrint
1594 lrintf
1595 powf
1596 rint
1597 round
1598 roundf
1599 sinf
1600 trunc
1601 truncf
1602 "
1603
1604 SYSTEM_FEATURES="
1605 dos_paths
1606 libc_msvcrt
1607 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1608 section_data_rel_ro
1609 threads
1610 uwp
1611 "
1612
1613 SYSTEM_FUNCS="
1614 aligned_malloc
1615 clock_gettime
1616 closesocket
1617 CommandLineToArgvW
1618 fcntl
1619 getaddrinfo
1620 gethrtime
1621 getopt
1622 GetProcessAffinityMask
1623 GetProcessMemoryInfo
1624 GetProcessTimes
1625 getrusage
1626 GetSystemTimeAsFileTime
1627 gettimeofday
1628 gmtime_r
1629 inet_aton
1630 isatty
1631 localtime_r
1632 mach_absolute_time
1633 MapViewOfFile
1634 memalign
1635 mmap
1636 mprotect
1637 nanosleep
1638 posix_memalign
1639 sched_getaffinity
1640 SetConsoleTextAttribute
1641 setmode
1642 setrlimit
1643 Sleep
1644 strerror_r
1645 sysconf
1646 sysctl
1647 usleep
1648 VirtualAlloc
1649 "
1650
1651 SYSTEM_LIBRARIES="
1652 sdl
1653 vaapi_1
1654 vaapi_drm
1655 vaapi_x11
1656 vdpau_x11
1657 wincrypt
1658 "
1659
1660 TOOLCHAIN_FEATURES="
1661 as_arch_directive
1662 as_fpu_directive
1663 as_func
1664 as_object_arch
1665 asm_mod_q
1666 blocks_extension
1667 ebp_available
1668 ebx_available
1669 gnu_as
1670 ibm_asm
1671 inline_asm_labels
1672 pragma_deprecated
1673 symver_asm_label
1674 symver_gnu_asm
1675 vfp_args
1676 xform_asm
1677 xmm_clobbers
1678 "
1679
1680 TYPES_LIST="
1681 CONDITION_VARIABLE_Ptr
1682 CUVIDDECODECREATEINFO_bitDepthMinus8
1683 socklen_t
1684 struct_addrinfo
1685 struct_group_source_req
1686 struct_ip_mreq_source
1687 struct_ipv6_mreq
1688 struct_pollfd
1689 struct_rusage_ru_maxrss
1690 struct_sockaddr_in6
1691 struct_sockaddr_sa_len
1692 struct_sockaddr_storage
1693 struct_v4l2_frmivalenum_discrete
1694 "
1695
1696 HAVE_LIST="
1697 $ARCH_EXT_LIST
1698 $(add_suffix _external $ARCH_EXT_LIST)
1699 $(add_suffix _inline $ARCH_EXT_LIST)
1700 $ARCH_FEATURES
1701 $BUILTIN_LIST
1702 $HAVE_LIST_CMDLINE
1703 $HAVE_LIST_PUB
1704 $HEADERS_LIST
1705 $INTRINSICS_LIST
1706 $MATH_FUNCS
1707 $SYSTEM_FEATURES
1708 $SYSTEM_FUNCS
1709 $SYSTEM_LIBRARIES
1710 $THREADS_LIST
1711 $TOOLCHAIN_FEATURES
1712 $TYPES_LIST
1713 "
1714
1715 # options emitted with CONFIG_ prefix but not available on the command line
1716 CONFIG_EXTRA="
1717 aandcttables
1718 ac3dsp
1719 adts_header
1720 audio_frame_queue
1721 audiodsp
1722 blockdsp
1723 bswapdsp
1724 cabac
1725 cbs
1726 cbs_h264
1727 cbs_h265
1728 cbs_mpeg2
1729 dirac_parse
1730 dvprofile
1731 faandct
1732 faanidct
1733 fdctdsp
1734 flacdsp
1735 fmtconvert
1736 g722dsp
1737 gmp
1738 golomb
1739 gplv3
1740 h263dsp
1741 h264chroma
1742 h264dsp
1743 h264parse
1744 h264pred
1745 h264qpel
1746 hevcparse
1747 hpeldsp
1748 huffman
1749 huffyuvdsp
1750 huffyuvencdsp
1751 idctdsp
1752 iirfilter
1753 imdct15
1754 intrax8
1755 iso_media
1756 ividsp
1757 jpegtables
1758 lgplv3
1759 libx262
1760 libxcb_shape
1761 lpc
1762 lzf
1763 me_cmp
1764 mpeg_er
1765 mpegaudio
1766 mpegaudiodsp
1767 mpegaudioheader
1768 mpegvideo
1769 mpegvideoenc
1770 mss34dsp
1771 pixblockdsp
1772 qpeldsp
1773 qsv
1774 qsvdec
1775 qsvenc
1776 qsvvpp
1777 rangecoder
1778 riffdec
1779 riffenc
1780 rtpdec
1781 rtpenc_chain
1782 rv34dsp
1783 sinewin
1784 snappy
1785 srtp
1786 startcode
1787 texturedsp
1788 texturedspenc
1789 tpeldsp
1790 vaapi_encode
1791 vc1dsp
1792 videodsp
1793 vp3dsp
1794 vp56dsp
1795 vp8dsp
1796 wma_freqs
1797 wmv2dsp
1798 "
1799
1800 CMDLINE_SELECT="
1801 $ARCH_EXT_LIST
1802 $CONFIG_LIST
1803 $HAVE_LIST_CMDLINE
1804 $THREADS_LIST
1805 asm
1806 cross_compile
1807 debug
1808 extra_warnings
1809 logging
1810 lto
1811 optimizations
1812 rpath
1813 "
1814
1815 PATHS_LIST="
1816 bindir
1817 datadir
1818 docdir
1819 incdir
1820 libdir
1821 mandir
1822 prefix
1823 shlibdir
1824 "
1825
1826 CMDLINE_SET="
1827 $PATHS_LIST
1828 ar
1829 arch
1830 as
1831 cc
1832 objcc
1833 cpu
1834 cross_prefix
1835 custom_allocator
1836 dep_cc
1837 env
1838 extra_version
1839 host_cc
1840 host_cflags
1841 host_extralibs
1842 host_ld
1843 host_ldflags
1844 host_os
1845 ignore_tests
1846 ld
1847 logfile
1848 malloc_prefix
1849 nm
1850 optflags
1851 pkg_config
1852 pkg_config_flags
1853 samples
1854 sysinclude
1855 sysroot
1856 target_exec
1857 target_os
1858 target_path
1859 target_samples
1860 toolchain
1861 x86asmexe
1862 "
1863
1864 CMDLINE_APPEND="
1865 extra_cflags
1866 extra_objcflags
1867 host_cppflags
1868 "
1869
1870 # code dependency declarations
1871
1872 # architecture extensions
1873
1874 armv5te_deps="arm"
1875 armv6_deps="arm"
1876 armv6t2_deps="arm"
1877 armv8_deps="aarch64"
1878 neon_deps_any="aarch64 arm"
1879 intrinsics_neon_deps="neon"
1880 vfp_deps_any="aarch64 arm"
1881 vfpv3_deps="vfp"
1882
1883 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1884
1885 altivec_deps="ppc"
1886 dcbzl_deps="ppc"
1887 ldbrx_deps="ppc"
1888 ppc4xx_deps="ppc"
1889 vsx_deps="altivec"
1890 power8_deps="vsx"
1891
1892 loongson_deps="mips"
1893 mips32r1_deps="mips32"
1894 mips32r2_deps="mips32"
1895 mips32r6_deps="mips32"
1896 mips64r1_deps="mips64"
1897 mips64r2_deps="mips64"
1898 mips64r6_deps="mips64"
1899
1900 vis_deps="sparc"
1901
1902 cpunop_deps="i686"
1903 x86_64_select="i686"
1904 x86_64_suggest="fast_cmov"
1905
1906 amd3dnow_deps="mmx"
1907 amd3dnowext_deps="amd3dnow"
1908 i686_deps="x86"
1909 mmx_deps="x86"
1910 mmxext_deps="mmx"
1911 sse_deps="mmxext"
1912 sse2_deps="sse"
1913 sse3_deps="sse2"
1914 ssse3_deps="sse3"
1915 sse4_deps="ssse3"
1916 sse42_deps="sse4"
1917 avx_deps="sse42"
1918 xop_deps="avx"
1919 fma3_deps="avx"
1920 fma4_deps="avx"
1921 avx2_deps="avx"
1922
1923 mmx_external_deps="x86asm"
1924 mmx_inline_deps="inline_asm x86"
1925 mmx_suggest="mmx_external mmx_inline"
1926
1927 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1928 eval dep=\$${ext}_deps
1929 eval ${ext}_external_deps='"${dep}_external"'
1930 eval ${ext}_inline_deps='"${dep}_inline"'
1931 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1932 done
1933
1934 aligned_stack_if_any="aarch64 ppc x86"
1935 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1936 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1937 fast_unaligned_if_any="aarch64 ppc x86"
1938 simd_align_16_if_any="altivec neon sse"
1939 simd_align_32_if_any="avx"
1940
1941 # system capabilities
1942 symver_if_any="symver_asm_label symver_gnu_asm"
1943 valgrind_backtrace_conflict="optimizations"
1944 valgrind_backtrace_deps="valgrind_valgrind_h"
1945
1946 # threading support
1947 atomics_gcc_if="sync_val_compare_and_swap"
1948 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1949 atomics_win32_if="MemoryBarrier"
1950 atomics_native_if_any="$ATOMICS_LIST"
1951 w32threads_deps="atomics_native"
1952 threads_if_any="$THREADS_LIST"
1953
1954 # subsystems
1955 cbs_h264_select="cbs golomb"
1956 cbs_h265_select="cbs golomb"
1957 cbs_mpeg2_select="cbs"
1958 dct_select="rdft"
1959 dirac_parse_select="golomb"
1960 error_resilience_select="me_cmp"
1961 faandct_deps="faan"
1962 faandct_select="fdctdsp"
1963 faanidct_deps="faan"
1964 faanidct_select="idctdsp"
1965 h264dsp_select="startcode"
1966 hevcparse_select="golomb"
1967 intrax8_select="blockdsp idctdsp"
1968 mdct_select="fft"
1969 rdft_select="fft"
1970 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1971 mpeg_er_select="error_resilience"
1972 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1973 mpegaudiodsp_select="dct"
1974 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1975 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1976 vc1dsp_select="h264chroma qpeldsp startcode"
1977
1978 # decoders / encoders
1979 aac_decoder_select="adts_header imdct15 mdct sinewin"
1980 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1981 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1982 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1983 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1984 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1985 adpcm_g722_decoder_select="g722dsp"
1986 adpcm_g722_encoder_select="g722dsp"
1987 aic_decoder_select="golomb idctdsp"
1988 alac_encoder_select="lpc"
1989 als_decoder_select="bswapdsp"
1990 amrnb_decoder_select="lsp"
1991 amrwb_decoder_select="lsp"
1992 amv_decoder_select="sp5x_decoder"
1993 ape_decoder_select="bswapdsp"
1994 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1995 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1996 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1997 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1998 atrac1_decoder_select="mdct sinewin"
1999 atrac3_decoder_select="mdct"
2000 atrac3p_decoder_select="mdct sinewin"
2001 bink_decoder_select="blockdsp hpeldsp"
2002 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2003 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2004 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2005 clearvideo_decoder_select="idctdsp"
2006 cllc_decoder_select="bswapdsp"
2007 comfortnoise_encoder_select="lpc"
2008 cook_decoder_select="audiodsp mdct sinewin"
2009 cscd_decoder_select="lzo"
2010 cscd_decoder_suggest="zlib"
2011 dca_decoder_select="fmtconvert mdct"
2012 dds_decoder_select="texturedsp"
2013 dnxhd_decoder_select="blockdsp idctdsp"
2014 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2015 dvvideo_decoder_select="dvprofile idctdsp"
2016 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2017 dxa_decoder_deps="zlib"
2018 dxv_decoder_select="lzf texturedsp"
2019 eac3_decoder_select="ac3_decoder"
2020 eac3_encoder_select="ac3_encoder"
2021 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2022 eatgq_decoder_select="aandcttables idctdsp"
2023 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2024 exr_decoder_deps="zlib"
2025 ffv1_decoder_select="rangecoder"
2026 ffv1_encoder_select="rangecoder"
2027 ffvhuff_decoder_select="huffyuv_decoder"
2028 ffvhuff_encoder_select="huffyuv_encoder"
2029 fic_decoder_select="golomb"
2030 flac_decoder_select="flacdsp"
2031 flac_encoder_select="bswapdsp flacdsp lpc"
2032 flashsv_decoder_deps="zlib"
2033 flashsv_encoder_deps="zlib"
2034 flashsv2_decoder_deps="zlib"
2035 flv_decoder_select="h263_decoder"
2036 flv_encoder_select="h263_encoder"
2037 fourxm_decoder_select="blockdsp bswapdsp"
2038 fraps_decoder_select="bswapdsp huffman"
2039 g2m_decoder_deps="zlib"
2040 g2m_decoder_select="blockdsp idctdsp jpegtables"
2041 h261_decoder_select="mpeg_er mpegvideo"
2042 h261_encoder_select="aandcttables mpegvideoenc"
2043 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2044 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2045 h263i_decoder_select="h263_decoder"
2046 h263p_encoder_select="h263_encoder"
2047 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2048 h264_decoder_suggest="error_resilience"
2049 hap_decoder_select="snappy texturedsp"
2050 hap_encoder_deps="libsnappy"
2051 hap_encoder_select="texturedspenc"
2052 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2053 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2054 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2055 iac_decoder_select="imc_decoder"
2056 imc_decoder_select="bswapdsp fft mdct sinewin"
2057 indeo3_decoder_select="hpeldsp"
2058 indeo4_decoder_select="ividsp"
2059 indeo5_decoder_select="ividsp"
2060 interplay_video_decoder_select="hpeldsp"
2061 jpegls_decoder_select="mjpeg_decoder"
2062 jv_decoder_select="blockdsp"
2063 lagarith_decoder_select="huffyuvdsp"
2064 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2065 magicyuv_decoder_select="huffyuvdsp"
2066 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2067 metasound_decoder_select="lsp mdct sinewin"
2068 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2069 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2070 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2071 mjpegb_decoder_select="mjpeg_decoder"
2072 mlp_decoder_select="mlp_parser"
2073 motionpixels_decoder_select="bswapdsp"
2074 mp1_decoder_select="mpegaudio"
2075 mp1float_decoder_select="mpegaudio"
2076 mp2_decoder_select="mpegaudio"
2077 mp2float_decoder_select="mpegaudio"
2078 mp3_decoder_select="mpegaudio"
2079 mp3adu_decoder_select="mpegaudio"
2080 mp3adufloat_decoder_select="mpegaudio"
2081 mp3float_decoder_select="mpegaudio"
2082 mp3on4_decoder_select="mpegaudio"
2083 mp3on4float_decoder_select="mpegaudio"
2084 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2085 mpc8_decoder_select="mpegaudiodsp"
2086 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2087 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2088 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2089 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2090 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2091 mpeg4_encoder_select="h263_encoder"
2092 msa1_decoder_select="mss34dsp"
2093 msmpeg4v1_decoder_select="h263_decoder"
2094 msmpeg4v2_decoder_select="h263_decoder"
2095 msmpeg4v2_encoder_select="h263_encoder"
2096 msmpeg4v3_decoder_select="h263_decoder"
2097 msmpeg4v3_encoder_select="h263_encoder"
2098 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2099 mts2_decoder_select="mss34dsp"
2100 mxpeg_decoder_select="mjpeg_decoder"
2101 nellymoser_decoder_select="mdct sinewin"
2102 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2103 nuv_decoder_select="idctdsp lzo"
2104 on2avc_decoder_select="mdct"
2105 opus_decoder_deps="avresample"
2106 opus_decoder_select="imdct15"
2107 png_decoder_deps="zlib"
2108 png_encoder_deps="zlib"
2109 png_encoder_select="huffyuvencdsp"
2110 prores_decoder_select="idctdsp"
2111 prores_encoder_select="fdctdsp"
2112 qcelp_decoder_select="lsp"
2113 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2114 ra_144_encoder_select="audio_frame_queue lpc"
2115 ralf_decoder_select="golomb"
2116 rscc_decoder_deps="zlib"
2117 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2118 rv10_encoder_select="h263_encoder"
2119 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2120 rv20_encoder_select="h263_encoder"
2121 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2122 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2123 screenpresso_decoder_deps="zlib"
2124 sipr_decoder_select="lsp"
2125 sp5x_decoder_select="mjpeg_decoder"
2126 svq1_decoder_select="hpeldsp"
2127 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2128 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2129 svq3_decoder_suggest="zlib"
2130 tak_decoder_select="audiodsp"
2131 tdsc_decoder_deps="zlib"
2132 tdsc_decoder_select="mjpeg_decoder"
2133 theora_decoder_select="vp3_decoder"
2134 thp_decoder_select="mjpeg_decoder"
2135 tiff_decoder_suggest="zlib"
2136 tiff_encoder_suggest="zlib"
2137 truehd_decoder_select="mlp_decoder"
2138 truemotion2_decoder_select="bswapdsp"
2139 truespeech_decoder_select="bswapdsp"
2140 tscc_decoder_deps="zlib"
2141 txd_decoder_select="texturedsp"
2142 twinvq_decoder_select="mdct lsp sinewin"
2143 utvideo_decoder_select="bswapdsp huffyuvdsp"
2144 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2145 vble_decoder_select="huffyuvdsp"
2146 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2147 vc1image_decoder_select="vc1_decoder"
2148 vorbis_decoder_select="mdct"
2149 vorbis_encoder_select="mdct"
2150 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2151 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2152 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2153 vp6a_decoder_select="vp6_decoder"
2154 vp6f_decoder_select="vp6_decoder"
2155 vp7_decoder_select="h264pred videodsp vp8dsp"
2156 vp8_decoder_select="h264pred videodsp vp8dsp"
2157 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2158 webp_decoder_select="vp8_decoder"
2159 wmapro_decoder_select="mdct sinewin wma_freqs"
2160 wmav1_decoder_select="mdct sinewin wma_freqs"
2161 wmav1_encoder_select="mdct sinewin wma_freqs"
2162 wmav2_decoder_select="mdct sinewin wma_freqs"
2163 wmav2_encoder_select="mdct sinewin wma_freqs"
2164 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2165 wmv1_decoder_select="h263_decoder"
2166 wmv1_encoder_select="h263_encoder"
2167 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2168 wmv2_encoder_select="h263_encoder wmv2dsp"
2169 wmv3_decoder_select="vc1_decoder"
2170 wmv3image_decoder_select="wmv3_decoder"
2171 zerocodec_decoder_deps="zlib"
2172 zlib_decoder_deps="zlib"
2173 zlib_encoder_deps="zlib"
2174 zmbv_decoder_deps="zlib"
2175 zmbv_encoder_deps="zlib"
2176
2177 # hardware accelerators
2178 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2179 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2180 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2181 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2182
2183 h263_vaapi_hwaccel_deps="vaapi"
2184 h263_vaapi_hwaccel_select="h263_decoder"
2185 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2186 h264_cuvid_hwaccel_select="h264_decoder"
2187 h264_d3d11va_hwaccel_deps="d3d11va"
2188 h264_d3d11va_hwaccel_select="h264_decoder"
2189 h264_d3d11va2_hwaccel_deps="d3d11va"
2190 h264_d3d11va2_hwaccel_select="h264_decoder"
2191 h264_dxva2_hwaccel_deps="dxva2"
2192 h264_dxva2_hwaccel_select="h264_decoder"
2193 h264_mmal_hwaccel_deps="mmal"
2194 h264_qsv_hwaccel_deps="libmfx"
2195 h264_vaapi_hwaccel_deps="vaapi"
2196 h264_vaapi_hwaccel_select="h264_decoder"
2197 h264_vda_hwaccel_deps="vda"
2198 h264_vda_hwaccel_select="h264_decoder"
2199 h264_vda_old_hwaccel_deps="vda"
2200 h264_vda_old_hwaccel_select="h264_decoder"
2201 h264_vdpau_hwaccel_deps="vdpau"
2202 h264_vdpau_hwaccel_select="h264_decoder"
2203 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2204 hevc_cuvid_hwaccel_select="hevc_decoder"
2205 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2206 hevc_d3d11va_hwaccel_select="hevc_decoder"
2207 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2208 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2209 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2210 hevc_dxva2_hwaccel_select="hevc_decoder"
2211 hevc_qsv_hwaccel_deps="libmfx"
2212 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2213 hevc_vaapi_hwaccel_select="hevc_decoder"
2214 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2215 hevc_vdpau_hwaccel_select="hevc_decoder"
2216 mpeg1_vdpau_hwaccel_deps="vdpau"
2217 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2218 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2219 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2220 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2221 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2222 mpeg2_dxva2_hwaccel_deps="dxva2"
2223 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2224 mpeg2_mmal_hwaccel_deps="mmal"
2225 mpeg2_qsv_hwaccel_deps="libmfx"
2226 mpeg2_vaapi_hwaccel_deps="vaapi"
2227 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2228 mpeg2_vdpau_hwaccel_deps="vdpau"
2229 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2230 mpeg4_vaapi_hwaccel_deps="vaapi"
2231 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2232 mpeg4_vdpau_hwaccel_deps="vdpau"
2233 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2234 vc1_d3d11va_hwaccel_deps="d3d11va"
2235 vc1_d3d11va_hwaccel_select="vc1_decoder"
2236 vc1_d3d11va2_hwaccel_deps="d3d11va"
2237 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2238 vc1_dxva2_hwaccel_deps="dxva2"
2239 vc1_dxva2_hwaccel_select="vc1_decoder"
2240 vc1_mmal_hwaccel_deps="mmal"
2241 vc1_qsv_hwaccel_deps="libmfx"
2242 vc1_vaapi_hwaccel_deps="vaapi"
2243 vc1_vaapi_hwaccel_select="vc1_decoder"
2244 vc1_vdpau_hwaccel_deps="vdpau"
2245 vc1_vdpau_hwaccel_select="vc1_decoder"
2246 vp8_qsv_hwaccel_deps="libmfx"
2247 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2248 vp8_vaapi_hwaccel_select="vp8_decoder"
2249 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2250 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2251 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2252 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2253 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2254
2255 # hardware-accelerated codecs
2256 nvenc_deps_any="libdl LoadLibrary"
2257 omx_deps="libdl pthreads"
2258 omx_rpi_select="omx"
2259 qsv_deps="libmfx"
2260 qsvdec_select="qsv"
2261 qsvenc_select="qsv"
2262 qsvvpp_select="qsv"
2263 vaapi_encode_deps="vaapi"
2264
2265 hwupload_cuda_filter_deps="cuda"
2266 scale_npp_filter_deps="cuda libnpp"
2267
2268 h264_mmal_decoder_deps="mmal"
2269 h264_nvenc_encoder_deps="nvenc"
2270 h264_omx_encoder_deps="omx"
2271 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2272 h264_qsv_encoder_select="qsvenc"
2273 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2274 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2275 hevc_nvenc_encoder_deps="nvenc"
2276 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2277 hevc_qsv_encoder_select="hevcparse qsvenc"
2278 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2279 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2280 mjpeg_qsv_encoder_deps="libmfx"
2281 mjpeg_qsv_encoder_select="qsvenc"
2282 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2283 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2284 mpeg2_mmal_decoder_deps="mmal"
2285 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2286 mpeg2_qsv_encoder_select="qsvenc"
2287 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2288 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2289 mpeg4_omx_encoder_deps="omx"
2290 vc1_mmal_decoder_deps="mmal"
2291 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2292 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2293 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2294 vp8_vaapi_encoder_select="vaapi_encode"
2295 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2296 vp9_vaapi_encoder_select="vaapi_encode"
2297
2298 nvenc_h264_encoder_select="h264_nvenc_encoder"
2299 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2300
2301 # parsers
2302 aac_parser_select="adts_header"
2303 h264_parser_select="golomb h264dsp h264parse"
2304 hevc_parser_select="hevcparse"
2305 mpegaudio_parser_select="mpegaudioheader"
2306 mpegvideo_parser_select="mpegvideo"
2307 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2308 vc1_parser_select="vc1dsp"
2309
2310 # bitstream_filters
2311 aac_adtstoasc_bsf_select="adts_header"
2312 h264_metadata_bsf_select="cbs_h264"
2313 h264_redundant_pps_bsf_select="cbs_h264"
2314 hevc_metadata_bsf_select="cbs_h265"
2315 mjpeg2jpeg_bsf_select="jpegtables"
2316 mpeg2_metadata_bsf_select="cbs_mpeg2"
2317 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2318
2319 # external libraries
2320 avisynth_deps="LoadLibrary"
2321 avxsynth_deps="libdl"
2322 avisynth_demuxer_deps_any="avisynth avxsynth"
2323 avisynth_demuxer_select="riffdec"
2324 libdcadec_decoder_deps="libdcadec"
2325 libfaac_encoder_deps="libfaac"
2326 libfaac_encoder_select="audio_frame_queue"
2327 libfdk_aac_decoder_deps="libfdk_aac"
2328 libfdk_aac_encoder_deps="libfdk_aac"
2329 libfdk_aac_encoder_select="audio_frame_queue"
2330 libgsm_decoder_deps="libgsm"
2331 libgsm_encoder_deps="libgsm"
2332 libgsm_ms_decoder_deps="libgsm"
2333 libgsm_ms_encoder_deps="libgsm"
2334 libilbc_decoder_deps="libilbc"
2335 libilbc_encoder_deps="libilbc"
2336 libkvazaar_encoder_deps="libkvazaar"
2337 libmp3lame_encoder_deps="libmp3lame"
2338 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2339 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2340 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2341 libopencore_amrnb_encoder_select="audio_frame_queue"
2342 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2343 libopenh264_decoder_deps="libopenh264"
2344 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2345 libopenh264_encoder_deps="libopenh264"
2346 libopenjpeg_decoder_deps="libopenjpeg"
2347 libopenjpeg_encoder_deps="libopenjpeg"
2348 libopus_decoder_deps="libopus"
2349 libopus_encoder_deps="libopus"
2350 libopus_encoder_select="audio_frame_queue"
2351 libschroedinger_decoder_deps="libschroedinger"
2352 libschroedinger_encoder_deps="libschroedinger"
2353 libspeex_decoder_deps="libspeex"
2354 libspeex_encoder_deps="libspeex"
2355 libspeex_encoder_select="audio_frame_queue"
2356 libtheora_encoder_deps="libtheora"
2357 libtwolame_encoder_deps="libtwolame"
2358 libvo_aacenc_encoder_deps="libvo_aacenc"
2359 libvo_aacenc_encoder_select="audio_frame_queue"
2360 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2361 libvorbis_encoder_deps="libvorbis"
2362 libvorbis_encoder_select="audio_frame_queue"
2363 libvpx_vp8_decoder_deps="libvpx"
2364 libvpx_vp8_encoder_deps="libvpx"
2365 libvpx_vp9_decoder_deps="libvpx"
2366 libvpx_vp9_encoder_deps="libvpx"
2367 libwavpack_encoder_deps="libwavpack"
2368 libwavpack_encoder_select="audio_frame_queue"
2369 libwebp_encoder_deps="libwebp"
2370 libx262_encoder_deps="libx262"
2371 libx264_encoder_deps="libx264"
2372 libx265_encoder_deps="libx265"
2373 libxavs_encoder_deps="libxavs"
2374 libxvid_encoder_deps="libxvid mkstemp"
2375
2376 # demuxers / muxers
2377 ac3_demuxer_select="ac3_parser"
2378 asf_demuxer_select="riffdec"
2379 asf_muxer_select="riffenc"
2380 asf_stream_muxer_select="asf_muxer"
2381 avi_demuxer_select="iso_media riffdec"
2382 avi_muxer_select="riffenc"
2383 caf_demuxer_select="iso_media riffdec"
2384 dash_muxer_select="mp4_muxer"
2385 dirac_demuxer_select="dirac_parser"
2386 dv_demuxer_select="dvprofile"
2387 dv_muxer_select="dvprofile"
2388 dxa_demuxer_select="riffdec"
2389 eac3_demuxer_select="ac3_parser"
2390 f4v_muxer_select="mov_muxer"
2391 flac_demuxer_select="flac_parser"
2392 hds_muxer_select="flv_muxer"
2393 hls_muxer_select="mpegts_muxer"
2394 ipod_muxer_select="mov_muxer"
2395 ismv_muxer_select="mov_muxer"
2396 matroska_audio_muxer_select="matroska_muxer"
2397 matroska_demuxer_select="iso_media riffdec"
2398 matroska_demuxer_suggest="bzlib lzo zlib"
2399 matroska_muxer_select="iso_media riffenc"
2400 mmf_muxer_select="riffenc"
2401 mov_demuxer_select="iso_media riffdec"
2402 mov_demuxer_suggest="zlib"
2403 mov_muxer_select="iso_media riffenc rtpenc_chain"
2404 mp3_demuxer_select="mpegaudio_parser"
2405 mp3_muxer_select="mpegaudioheader"
2406 mp4_muxer_select="mov_muxer"
2407 mpegts_demuxer_select="iso_media"
2408 mpegts_muxer_select="adts_muxer latm_muxer"
2409 mpegtsraw_demuxer_select="mpegts_demuxer"
2410 mxf_d10_muxer_select="mxf_muxer"
2411 nut_muxer_select="riffenc"
2412 nuv_demuxer_select="riffdec"
2413 oga_muxer_select="ogg_muxer"
2414 ogg_demuxer_select="dirac_parse"
2415 opus_muxer_select="ogg_muxer"
2416 psp_muxer_select="mov_muxer"
2417 rtp_demuxer_select="sdp_demuxer"
2418 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2419 rtsp_demuxer_select="http_protocol rtpdec"
2420 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2421 sap_demuxer_select="sdp_demuxer"
2422 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2423 sdp_demuxer_select="rtpdec"
2424 smoothstreaming_muxer_select="ismv_muxer"
2425 spdif_demuxer_select="adts_header"
2426 spdif_muxer_select="adts_header"
2427 spx_muxer_select="ogg_muxer"
2428 swf_demuxer_suggest="zlib"
2429 tak_demuxer_select="tak_parser"
2430 tg2_muxer_select="mov_muxer"
2431 tgp_muxer_select="mov_muxer"
2432 w64_demuxer_select="wav_demuxer"
2433 wav_demuxer_select="riffdec"
2434 wav_muxer_select="riffenc"
2435 webm_muxer_select="iso_media riffenc"
2436 wtv_demuxer_select="mpegts_demuxer riffdec"
2437 xmv_demuxer_select="riffdec"
2438 xwma_demuxer_select="riffdec"
2439
2440 # indevs
2441 alsa_indev_deps="alsa"
2442 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2443 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2444 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2445 fbdev_indev_deps="linux_fb_h"
2446 jack_indev_deps="libjack"
2447 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2448 libcdio_indev_deps="libcdio"
2449 libdc1394_indev_deps="libdc1394"
2450 oss_indev_deps_any="sys_soundcard_h"
2451 pulse_indev_deps="libpulse"
2452 sndio_indev_deps="sndio"
2453 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2454 vfwcap_indev_deps="vfw32 vfwcap_defines"
2455 xcbgrab_indev_deps="libxcb libxcb_shape"
2456 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2457
2458 # protocols
2459 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2460 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2461 ffrtmpcrypt_protocol_select="tcp_protocol"
2462 ffrtmphttp_protocol_conflict="librtmp_protocol"
2463 ffrtmphttp_protocol_select="http_protocol"
2464 gopher_protocol_select="network"
2465 http_protocol_select="tcp_protocol"
2466 http_protocol_suggest="zlib"
2467 httpproxy_protocol_select="tcp_protocol"
2468 httpproxy_protocol_suggest="zlib"
2469 https_protocol_select="tls_protocol"
2470 https_protocol_suggest="zlib"
2471 icecast_protocol_select="http_protocol"
2472 librtmp_protocol_deps="librtmp"
2473 librtmpe_protocol_deps="librtmp"
2474 librtmps_protocol_deps="librtmp"
2475 librtmpt_protocol_deps="librtmp"
2476 librtmpte_protocol_deps="librtmp"
2477 mmsh_protocol_select="http_protocol"
2478 mmst_protocol_select="network"
2479 rtmp_protocol_conflict="librtmp_protocol"
2480 rtmp_protocol_select="tcp_protocol"
2481 rtmp_protocol_suggest="zlib"
2482 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2483 rtmpe_protocol_suggest="zlib"
2484 rtmps_protocol_conflict="librtmp_protocol"
2485 rtmps_protocol_select="tls_protocol"
2486 rtmps_protocol_suggest="zlib"
2487 rtmpt_protocol_select="ffrtmphttp_protocol"
2488 rtmpt_protocol_suggest="zlib"
2489 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2490 rtmpte_protocol_suggest="zlib"
2491 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2492 rtmpts_protocol_suggest="zlib"
2493 rtp_protocol_select="udp_protocol"
2494 sctp_protocol_deps="struct_sctp_event_subscribe"
2495 sctp_protocol_select="network"
2496 srtp_protocol_select="rtp_protocol srtp"
2497 tcp_protocol_select="network"
2498 tls_protocol_deps_any="gnutls openssl"
2499 tls_protocol_select="tcp_protocol"
2500 udp_protocol_select="network"
2501 unix_protocol_deps="sys_un_h"
2502 unix_protocol_select="network"
2503
2504 # filters
2505 asyncts_filter_deps="avresample"
2506 blackframe_filter_deps="gpl"
2507 boxblur_filter_deps="gpl"
2508 bs2b_filter_deps="libbs2b"
2509 cropdetect_filter_deps="gpl"
2510 deinterlace_qsv_filter_deps="libmfx"
2511 deinterlace_vaapi_filter_deps="vaapi"
2512 delogo_filter_deps="gpl"
2513 drawtext_filter_deps="libfreetype"
2514 drawtext_filter_suggest="libfontconfig"
2515 frei0r_filter_deps="frei0r libdl"
2516 frei0r_src_filter_deps="frei0r libdl"
2517 hdcd_filter_deps="libhdcd"
2518 hqdn3d_filter_deps="gpl"
2519 interlace_filter_deps="gpl"
2520 movie_filter_deps="avcodec avformat"
2521 ocv_filter_deps="libopencv"
2522 overlay_qsv_filter_deps="libmfx"
2523 overlay_qsv_filter_select="qsvvpp"
2524 resample_filter_deps="avresample"
2525 scale_filter_deps="swscale"
2526 scale_qsv_filter_deps="libmfx"
2527 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2528 vpp_qsv_filter_deps="libmfx"
2529 vpp_qsv_filter_select="qsvvpp"
2530
2531 # examples
2532 decode_audio_example_deps="avcodec avutil"
2533 decode_video_example_deps="avcodec avutil"
2534 encode_audio_example_deps="avcodec avutil"
2535 encode_video_example_deps="avcodec avutil"
2536 filter_audio_example_deps="avfilter avutil"
2537 metadata_example_deps="avformat avutil"
2538 output_example_deps="avcodec avformat avresample avutil swscale"
2539 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2540 transcode_aac_example_deps="avcodec avformat avresample"
2541
2542 # EXTRALIBS_LIST
2543 cpu_init_extralibs="pthreads_extralibs"
2544 cws2fws_extralibs="zlib_extralibs"
2545
2546 # libraries, in linking order
2547 avcodec_deps="avutil"
2548 avcodec_select="null_bsf"
2549 avdevice_deps="avformat avcodec avutil"
2550 avfilter_deps="avutil"
2551 avformat_deps="avcodec avutil"
2552 avformat_suggest="network"
2553 avresample_deps="avutil"
2554 swscale_deps="avutil"
2555
2556 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2557 avdevice_extralibs="libm_extralibs"
2558 avformat_extralibs="libm_extralibs"
2559 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2560 avresample_extralibs="libm_extralibs"
2561 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2562 swscale_extralibs="libm_extralibs"
2563
2564 # programs
2565 avconv_deps="avcodec avfilter avformat avresample swscale"
2566 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2567 fps_filter null_filter resample_filter scale_filter
2568 trim_filter"
2569 avconv_suggest="psapi shell32"
2570 avplay_deps="avcodec avfilter avformat avresample sdl"
2571 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2572 avplay_suggest="shell32"
2573 avprobe_deps="avcodec avformat"
2574 avprobe_suggest="shell32"
2575
2576 # documentation
2577 pod2man_deps="doc"
2578 texi2html_deps="doc"
2579
2580 # default parameters
2581
2582 logfile="avbuild/config.log"
2583
2584 # installation paths
2585 prefix_default="/usr/local"
2586 bindir_default='${prefix}/bin'
2587 datadir_default='${prefix}/share/avconv'
2588 docdir_default='${prefix}/share/doc/libav'
2589 incdir_default='${prefix}/include'
2590 libdir_default='${prefix}/lib'
2591 mandir_default='${prefix}/share/man'
2592 shlibdir_default="$libdir_default"
2593
2594 # toolchain
2595 ar_default="ar"
2596 cc_default="gcc"
2597 host_cc_default="gcc"
2598 x86asmexe_default="nasm"
2599 ln_s="ln -s -f"
2600 nm_default="nm -g"
2601 pkg_config_default=pkg-config
2602 ranlib="ranlib"
2603 strip="strip"
2604 version_script='--version-script'
2605
2606 # machine
2607 arch_default=$(uname -m)
2608 cpu="generic"
2609 intrinsics="none"
2610
2611 # OS
2612 target_os_default=$(tolower $(uname -s))
2613 host_os=$target_os_default
2614
2615 # configurable options
2616 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2617
2618 enable asm
2619 enable debug
2620 enable doc
2621 enable faan faandct faanidct
2622 enable optimizations
2623 enable safe_bitstream_reader
2624 enable static
2625 enable swscale_alpha
2626 enable valgrind_backtrace
2627
2628 # By default, enable only those hwaccels that have no external dependencies.
2629 enable d3d11va dxva2 vda vdpau
2630
2631 # internal components are enabled by default
2632 enable $EXTRALIBS_LIST
2633
2634 # Avoid external, non-system, libraries getting enabled by dependency resolution
2635 disable $EXTERNAL_LIBRARY_LIST
2636
2637 # build settings
2638 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2639 LIBPREF="lib"
2640 LIBSUF=".a"
2641 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2642 SLIBPREF="lib"
2643 SLIBSUF=".so"
2644 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2645 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2646 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2647 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2648 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2649 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2650 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2651
2652 asflags_filter=echo
2653 cflags_filter=echo
2654 ldflags_filter=echo
2655
2656 AS_C='-c'
2657 AS_O='-o $@'
2658 CC_C='-c'
2659 CC_E='-E -o $@'
2660 CC_O='-o $@'
2661 OBJCC_C='-c'
2662 OBJCC_E='-E -o $@'
2663 OBJCC_O='-o $@'
2664 X86ASM_O='-o $@'
2665 LD_O='-o $@'
2666 LD_LIB='-l%'
2667 LD_PATH='-L'
2668 HOSTCC_C='-c'
2669 HOSTCC_E='-E -o $@'
2670 HOSTCC_O='-o $@'
2671 HOSTLD_O='-o $@'
2672
2673 host_extralibs='-lm'
2674 host_cflags_filter=echo
2675 host_ldflags_filter=echo
2676
2677 target_path='$(CURDIR)'
2678
2679 # since the object filename is not given with the -MM flag, the compiler
2680 # is only able to print the basename, and we must add the path ourselves
2681 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2682 DEPFLAGS='-MM'
2683
2684 mkdir -p avbuild
2685
2686 # find source path
2687 if test -f configure; then
2688 source_path=.
2689 else
2690 source_path=$(cd $(dirname "$0"); pwd)
2691 echo "$source_path" | grep -q '[[:blank:]]' &&
2692 die "Out of tree builds are impossible with whitespace in source path."
2693 test -e "$source_path/config.h" &&
2694 die "Out of tree builds are impossible with config.h in source dir."
2695 fi
2696
2697 for v in "$@"; do
2698 r=${v#*=}
2699 l=${v%"$r"}
2700 r=$(sh_quote "$r")
2701 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2702 done
2703
2704 find_things(){
2705 thing=$1
2706 pattern=$2
2707 file=$source_path/$3
2708 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2709 }
2710
2711 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2712 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2713 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2714 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2715 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2716 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2717 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2718 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2719
2720 find_things_extern(){
2721 thing=$1
2722 pattern=$2
2723 file=$source_path/$3
2724 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2725 }
2726
2727 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2728 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2729
2730 AVCODEC_COMPONENTS_LIST="
2731 $BSF_LIST
2732 $DECODER_LIST
2733 $ENCODER_LIST
2734 $HWACCEL_LIST
2735 $PARSER_LIST
2736 "
2737
2738 AVDEVICE_COMPONENTS_LIST="
2739 $INDEV_LIST
2740 "
2741
2742 AVFILTER_COMPONENTS_LIST="
2743 $FILTER_LIST
2744 "
2745
2746 AVFORMAT_COMPONENTS_LIST="
2747 $DEMUXER_LIST
2748 $MUXER_LIST
2749 $PROTOCOL_LIST
2750 "
2751
2752 ALL_COMPONENTS="
2753 $AVCODEC_COMPONENTS_LIST
2754 $AVDEVICE_COMPONENTS_LIST
2755 $AVFILTER_COMPONENTS_LIST
2756 $AVFORMAT_COMPONENTS_LIST
2757 "
2758
2759 for n in $COMPONENT_LIST; do
2760 v=$(toupper ${n%s})_LIST
2761 eval enable \$$v
2762 eval ${n}_if_any="\$$v"
2763 done
2764
2765 enable $ARCH_EXT_LIST
2766
2767 die_unknown(){
2768 echo "Unknown option \"$1\"."
2769 echo "See $0 --help for available options."
2770 exit 1
2771 }
2772
2773 print_3_columns() {
2774 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2775 }
2776
2777 show_list() {
2778 suffix=_$1
2779 shift
2780 echo $* | sed s/$suffix//g | print_3_columns
2781 exit 0
2782 }
2783
2784 for opt do
2785 optval="${opt#*=}"
2786 case "$opt" in
2787 --extra-ldflags=*)
2788 add_ldflags $optval
2789 ;;
2790 --extra-ldexeflags=*)
2791 add_ldexeflags $optval
2792 ;;
2793 --extra-ldsoflags=*)
2794 add_ldsoflags $optval
2795 ;;
2796 --extra-libs=*)
2797 add_extralibs $optval
2798 ;;
2799 --disable-devices)
2800 disable $INDEV_LIST
2801 ;;
2802 --enable-debug=*)
2803 debuglevel="$optval"
2804 ;;
2805 --disable-programs)
2806 disable $PROGRAM_LIST
2807 ;;
2808 --disable-everything)
2809 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2810 ;;
2811 --disable-all)
2812 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2813 disable $LIBRARY_LIST $PROGRAM_LIST doc
2814 ;;
2815 --enable-*=*|--disable-*=*)
2816 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2817 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2818 eval list=\$$(toupper $thing)_LIST
2819 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2820 $action $(filter "$name" $list)
2821 ;;
2822 --enable-yasm|--disable-yasm)
2823 warn "The ${opt} option is only provided for compatibility and will be\n"\
2824 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2825 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2826 ;;
2827 --enable-?*|--disable-?*)
2828 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2829 if is_in $option $COMPONENT_LIST; then
2830 test $action = disable && action=unset
2831 eval $action \$$(toupper ${option%s})_LIST
2832 elif is_in $option $CMDLINE_SELECT; then
2833 $action $option
2834 else
2835 die_unknown $opt
2836 fi
2837 ;;
2838 --list-*)
2839 NAME="${opt#--list-}"
2840 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2841 NAME=${NAME%s}
2842 eval show_list $NAME \$$(toupper $NAME)_LIST
2843 ;;
2844 --help|-h) show_help
2845 ;;
2846 --quiet|-q) quiet=yes
2847 ;;
2848 *)
2849 optname="${opt%%=*}"
2850 optname="${optname#--}"
2851 optname=$(echo "$optname" | sed 's/-/_/g')
2852 if is_in $optname $CMDLINE_SET; then
2853 eval $optname='$optval'
2854 elif is_in $optname $CMDLINE_APPEND; then
2855 append $optname "$optval"
2856 else
2857 die_unknown $opt
2858 fi
2859 ;;
2860 esac
2861 done
2862
2863 for e in $env; do
2864 eval "export $e"
2865 done
2866
2867 disabled logging && logfile=/dev/null
2868
2869 # we need to build at least one lib type
2870 if ! enabled_any static shared; then
2871 cat <<EOF
2872 At least one library type must be built.
2873 Specify --enable-static to build the static libraries or --enable-shared to
2874 build the shared libraries as well. To only build the shared libraries specify
2875 --disable-static in addition to --enable-shared.
2876 EOF
2877 exit 1
2878 fi
2879
2880 # Die early if licensing-related configure options are incompatible.
2881 die_license_disabled() {
2882 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2883 }
2884
2885 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2886 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2887 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2888
2889 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2890
2891 enabled_all gnutls openssl &&
2892 die "GnuTLS and OpenSSL must not be enabled at the same time."
2893
2894 # Disable all the library-specific components if the library itself
2895 # is disabled, see AVCODEC_LIST and following _LIST variables.
2896
2897 disable_components(){
2898 disabled ${1} && disable $(
2899 eval components="\$$(toupper ${1})_COMPONENTS"
2900 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2901 )
2902 }
2903
2904 map 'disable_components $v' $LIBRARY_LIST
2905
2906 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2907 set >> $logfile
2908
2909 case "$toolchain" in
2910 *-asan)
2911 cc_default="${toolchain%-asan}"
2912 add_cflags -fsanitize=address
2913 add_ldflags -fsanitize=address
2914 ;;
2915 *-msan)
2916 cc_default="${toolchain%-msan}"
2917 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2918 add_ldflags -fsanitize=memory
2919 ;;
2920 *-tsan)
2921 cc_default="${toolchain%-tsan}"
2922 add_cflags -fsanitize=thread -fPIE
2923 add_ldflags -fsanitize=thread -pie
2924 case "$toolchain" in
2925 gcc-tsan)
2926 add_cflags -fPIC
2927 add_ldflags -fPIC
2928 ;;
2929 esac
2930 ;;
2931 *-usan)
2932 cc_default="${toolchain%-usan}"
2933 add_cflags -fsanitize=undefined
2934 add_ldflags -fsanitize=undefined
2935 case "$toolchain" in
2936 clang-usan)
2937 add_cflags -O1
2938 ;;
2939 esac
2940 ;;
2941 valgrind-*)
2942 target_exec_default="valgrind"
2943 case "$toolchain" in
2944 valgrind-massif)
2945 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2946 ;;
2947 valgrind-memcheck)
2948 target_exec_args="--track-origins=yes --leak-check=full"
2949 ;;
2950 esac
2951 ;;
2952 msvc)
2953 # Check whether the current MSVC version needs the C99 converter.
2954 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2955 # support enough of C99 to build libav. Default to the new
2956 # behaviour if the regexp was unable to match anything, since this
2957 # successfully parses the version number of existing supported
2958 # versions that require the converter (MSVC 2010 and 2012).
2959 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2960 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2961 cc_default="cl"
2962 else
2963 cc_default="c99wrap cl"
2964 fi
2965 ld_default="$source_path/compat/windows/mslink"
2966 nm_default="dumpbin -symbols"
2967 ar_default="lib"
2968 case "$arch" in
2969 aarch64|arm64)
2970 as_default="armasm64"
2971 ;;
2972 arm*)
2973 as_default="armasm"
2974 ;;
2975 esac
2976 target_os_default="win32"
2977 # Use a relative path for TMPDIR. This makes sure all the
2978 # ffconf temp files are written with a relative path, avoiding
2979 # issues with msys/win32 path conversion for MSVC parameters
2980 # such as -Fo<file> or -out:<file>.
2981 TMPDIR=.
2982 ;;
2983 icl)
2984 cc_default="icl"
2985 ld_default="xilink"
2986 nm_default="dumpbin -symbols"
2987 ar_default="xilib"
2988 target_os_default="win32"
2989 TMPDIR=.
2990 ;;
2991 gcov)
2992 add_cflags -fprofile-arcs -ftest-coverage
2993 add_ldflags -fprofile-arcs -ftest-coverage
2994 ;;
2995 llvm-cov)
2996 add_cflags -fprofile-arcs -ftest-coverage
2997 add_ldflags --coverage
2998 ;;
2999 hardened)
3000 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3001 add_cflags -fno-strict-overflow -fstack-protector-all
3002 add_ldflags -Wl,-z,relro -Wl,-z,now
3003 ;;
3004 ?*)
3005 die "Unknown toolchain $toolchain"
3006 ;;
3007 esac
3008
3009 test -n "$cross_prefix" && enable cross_compile
3010
3011 if enabled cross_compile; then
3012 test -n "$arch" && test -n "$target_os" ||
3013 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3014 fi
3015
3016 ar_default="${cross_prefix}${ar_default}"
3017 cc_default="${cross_prefix}${cc_default}"
3018 objcc_default="${cross_prefix}${objcc_default}"
3019 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3020 nm_default="${cross_prefix}${nm_default}"
3021 pkg_config_default="${cross_prefix}${pkg_config_default}"
3022 ranlib="${cross_prefix}${ranlib}"
3023 strip="${cross_prefix}${strip}"
3024
3025 sysinclude_default="${sysroot}/usr/include"
3026
3027 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3028 enabled cross_compile || host_cc_default=$cc
3029 set_default host_cc
3030
3031 if ! $pkg_config --version >/dev/null 2>&1; then
3032 warn "$pkg_config not found, library detection may fail."
3033 pkg_config=false
3034 fi
3035
3036 exesuf() {
3037 case $1 in
3038 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3039 esac
3040 }
3041
3042 EXESUF=$(exesuf $target_os)
3043 HOSTEXESUF=$(exesuf $host_os)
3044
3045 # set temporary file name
3046 : ${TMPDIR:=$TEMPDIR}
3047 : ${TMPDIR:=$TMP}
3048 : ${TMPDIR:=/tmp}
3049
3050 if ! check_cmd mktemp -u XXXXXX; then
3051 # simple replacement for missing mktemp
3052 # NOT SAFE FOR GENERAL USE
3053 mktemp(){
3054 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3055 echo "$tmpname"
3056 mkdir "$tmpname"
3057 }
3058 fi
3059
3060 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3061 die "Unable to create temporary directory in $TMPDIR."
3062
3063 tmpfile(){
3064 tmp="${AVTMPDIR}/test"$2
3065 (set -C; exec > $tmp) 2> /dev/null ||
3066 die "Unable to create temporary file in $AVTMPDIR."
3067 eval $1=$tmp
3068 }
3069
3070 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3071 trap 'exit 2' INT
3072
3073 tmpfile TMPASM .asm
3074 tmpfile TMPC .c
3075 tmpfile TMPE $EXESUF
3076 tmpfile TMPH .h
3077 tmpfile TMPO .o
3078 tmpfile TMPS .S
3079 tmpfile TMPSH .sh
3080 tmpfile TMPV .ver
3081
3082 unset -f mktemp
3083
3084 chmod +x $TMPE
3085
3086 # make sure we can execute files in $TMPDIR
3087 cat > $TMPSH 2>> $logfile <<EOF
3088 #! /bin/sh
3089 EOF
3090 chmod +x $TMPSH >> $logfile 2>&1
3091 if ! $TMPSH >> $logfile 2>&1; then
3092 cat <<EOF
3093 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3094 variable to another directory and make sure that it is not mounted noexec.
3095 EOF
3096 die "Sanity test failed."
3097 fi
3098
3099 armasm_flags(){
3100 for flag; do
3101 case $flag in
3102 # Filter out MSVC cl.exe options from cflags that shouldn't
3103 # be passed to gas-preprocessor
3104 -M[TD]*) ;;
3105 *) echo $flag ;;
3106 esac
3107 done
3108 }
3109
3110 cparser_flags(){
3111 for flag; do
3112 case $flag in
3113 -Wno-switch) echo -Wno-switch-enum ;;
3114 -Wno-format-zero-length) ;;
3115 -Wdisabled-optimization) ;;
3116 -Wno-pointer-sign) echo -Wno-other ;;
3117 *) echo $flag ;;
3118 esac
3119 done
3120 }
3121
3122 msvc_common_flags(){
3123 for flag; do
3124 case $flag in
3125 # In addition to specifying certain flags under the compiler
3126 # specific filters, they must be specified here as well or else the
3127 # generic catch all at the bottom will print the original flag.
3128 -Wall) ;;
3129 -Wextra) ;;
3130 -std=c99) ;;
3131 # Common flags
3132 -fomit-frame-pointer) ;;
3133 -g) echo -Z7 ;;
3134 -fno-math-errno) ;;
3135 -fno-common) ;;
3136 -fno-signed-zeros) ;;
3137 -fPIC) ;;
3138 -mthumb) ;;
3139 -march=*) ;;
3140 -lz) echo zlib.lib ;;
3141 -lx264) echo libx264.lib ;;
3142 -l*) echo ${flag#-l}.lib ;;
3143 -L*) echo -libpath:${flag#-L} ;;
3144 *) echo $flag ;;
3145 esac
3146 done
3147 }
3148
3149 msvc_flags(){
3150 msvc_common_flags "$@"
3151 for flag; do
3152 case $flag in
3153 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3154 -wd4554 ;;
3155 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3156 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3157 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3158 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3159 esac
3160 done
3161 }
3162
3163 icl_flags(){
3164 msvc_common_flags "$@"
3165 for flag; do
3166 case $flag in
3167 # Despite what Intel's documentation says -Wall, which is supported
3168 # on Windows, does enable remarks so disable them here.
3169 -Wall) echo $flag -Qdiag-disable:remark ;;
3170 -std=c99) echo -Qstd=c99 ;;
3171 esac
3172 done
3173 }
3174
3175 suncc_flags(){
3176 for flag; do
3177 case $flag in
3178 -march=*|-mcpu=*)
3179 case "${flag#*=}" in
3180 native) echo -xtarget=native ;;
3181 v9|niagara) echo -xarch=sparc ;;
3182 ultrasparc) echo -xarch=sparcvis ;;
3183 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3184 i586|pentium) echo -xchip=pentium ;;
3185 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3186 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3187 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3188 pentium4*) echo -xtarget=pentium4 ;;
3189 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3190 *-sse3) echo -xarch=sse3 ;;
3191 core2) echo -xarch=ssse3 -xchip=core2 ;;
3192 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3193 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3194 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3195 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3196 k8|opteron|athlon64|athlon-fx)
3197 echo -xarch=sse2a ;;
3198 athlon*) echo -xarch=pentium_proa ;;
3199 esac
3200 ;;
3201 -std=c99) echo -xc99 ;;
3202 -fomit-frame-pointer) echo -xregs=frameptr ;;
3203 -fPIC) echo -KPIC -xcode=pic32 ;;
3204 -W*,*) echo $flag ;;
3205 -f*-*|-W*|-mimpure-text) ;;
3206 -shared) echo -G ;;
3207 *) echo $flag ;;
3208 esac
3209 done
3210 }
3211
3212 probe_cc(){
3213 pfx=$1
3214 _cc=$2
3215
3216 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3217 unset _ld_o _ldflags _ld_lib _ld_path
3218 unset _depflags _DEPCMD _DEPFLAGS
3219 _flags_filter=echo
3220
3221 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3222 _type=llvm_gcc
3223 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3224 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3225 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3226 _cflags_speed='-O3'
3227 _cflags_size='-Os'
3228 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3229 _type=gcc
3230 gcc_version=$($_cc --version | head -n1)
3231 gcc_basever=$($_cc -dumpversion)
3232 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3233 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3234 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3235 if ! $_cc -dumpversion | grep -q '^2\.'; then
3236 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3237 fi
3238 _cflags_speed='-O3'
3239 _cflags_size='-Os'
3240 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3241 _type=icc
3242 _ident=$($_cc --version | head -n1)
3243 _depflags='-MMD'
3244 _cflags_speed='-O3'
3245 _cflags_size='-Os'
3246 _cflags_noopt='-O1'
3247 elif $_cc -v 2>&1 | grep -q xlc; then
3248 _type=xlc
3249 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3250 _cflags_speed='-O5'
3251 _cflags_size='-O5 -qcompact'
3252 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3253 test -d "$sysroot" || die "No valid sysroot specified."
3254 _type=armcc
3255 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3256 armcc_conf="$PWD/armcc.conf"
3257 $_cc --arm_linux_configure \
3258 --arm_linux_config_file="$armcc_conf" \
3259 --configure_sysroot="$sysroot" \
3260 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3261 die "Error creating armcc configuration file."
3262 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3263 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3264 as_default="${cross_prefix}gcc"
3265 _depflags='-MMD'
3266 _cflags_speed='-O3'
3267 _cflags_size='-Os'
3268 elif $_cc -v 2>&1 | grep -q clang; then
3269 _type=clang
3270 _ident=$($_cc --version 2>/dev/null | head -n1)
3271 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3272 _cflags_speed='-O3'
3273 _cflags_size='-Os'
3274 elif $_cc -V 2>&1 | grep -q Sun; then
3275 _type=suncc
3276 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3277 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3278 _DEPFLAGS='-xM1 -xc99'
3279 _ldflags='-std=c99'
3280 _cflags_speed='-O5'
3281 _cflags_size='-O5 -xspace'
3282 _flags_filter=suncc_flags
3283 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3284 _type=pathscale
3285 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3286 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3287 _cflags_speed='-O2'
3288 _cflags_size='-Os'
3289 _flags_filter='filter_out -Wdisabled-optimization'
3290 elif $_cc -v 2>&1 | grep -q Open64; then
3291 _type=open64
3292 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3293 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3294 _cflags_speed='-O2'
3295 _cflags_size='-Os'
3296 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3297 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3298 _type=armasm
3299 _ident=$($_cc | head -n1)
3300 # 4509: "This form of conditional instruction is deprecated"
3301 _flags="-nologo -ignore 4509"
3302 _flags_filter=armasm_flags
3303 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3304 _type=msvc
3305 _ident=$($_cc 2>&1 | head -n1)
3306 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3307 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3308 _cflags_speed="-O2"
3309 _cflags_size="-O1"
3310 _cflags_noopt="-O1"
3311 if $_cc -nologo- 2>&1 | grep -q Linker; then
3312 _ld_o='-out:$@'
3313 else
3314 _ld_o='-Fe$@'
3315 fi
3316 _cc_o='-Fo$@'
3317 _cc_e='-P -Fi$@'
3318 _flags_filter=msvc_flags
3319 _ld_lib='lib%.a'
3320 _ld_path='-libpath:'
3321 _flags='-nologo'
3322 elif $_cc 2>&1 | grep -q Intel; then
3323 _type=icl
3324 _ident=$($_cc 2>&1 | head -n1)
3325 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3326 # Not only is O3 broken on 13.x+ but it is slower on all previous
3327 # versions (tested) as well.
3328 _cflags_speed="-O2"
3329 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3330 if $_cc 2>&1 | grep -q Linker; then
3331 _ld_o='-out:$@'
3332 else
3333 _ld_o='-Fe$@'
3334 fi
3335 _cc_o='-Fo$@'
3336 _cc_e='-P'
3337 _flags_filter=icl_flags
3338 _ld_lib='lib%.a'
3339 _ld_path='-libpath:'
3340 # -Qdiag-error to make icl error when seeing certain unknown arguments
3341 _flags='-nologo -Qdiag-error:4044,10157'
3342 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3343 # with MSVC which enables it by default.
3344 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3345 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3346 # lld can emulate multiple different linkers; in ms link.exe mode,
3347 # the -? parameter gives the help output which contains an identifyable
3348 # string, while it gives an error in other modes.
3349 _type=lld-link
3350 # The link.exe mode doesn't have a switch for getting the version,
3351 # but we can force it back to gnu mode and get the version from there.
3352 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3353 _ld_o='-out:$@'
3354 _flags_filter=msvc_flags
3355 _ld_lib='lib%.a'
3356 _ld_path='-libpath:'
3357 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3358 _type=cparser
3359 _ident=$($_cc --version | head -n1)
3360 _depflags='-MMD'
3361 _cflags_speed='-O4'
3362 _cflags_size='-O2'
3363 _flags_filter=cparser_flags
3364 fi
3365
3366 eval ${pfx}_type=\$_type
3367 eval ${pfx}_ident=\$_ident
3368 }
3369
3370 set_ccvars(){
3371 eval ${1}_C=\${_cc_c-\${${1}_C}}
3372 eval ${1}_E=\${_cc_e-\${${1}_E}}
3373 eval ${1}_O=\${_cc_o-\${${1}_O}}
3374
3375 if [ -n "$_depflags" ]; then
3376 eval ${1}_DEPFLAGS=\$_depflags
3377 else
3378 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3379 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3380 eval DEP${1}FLAGS=\$_flags
3381 fi
3382 }
3383
3384 probe_cc cc "$cc"
3385 cflags_filter=$_flags_filter
3386 cflags_speed=$_cflags_speed
3387 cflags_size=$_cflags_size
3388 cflags_noopt=$_cflags_noopt
3389 add_cflags $_flags $_cflags
3390 cc_ldflags=$_ldflags
3391 set_ccvars CC
3392
3393 probe_cc hostcc "$host_cc"
3394 host_cflags_filter=$_flags_filter
3395 host_cflags_speed=$_cflags_speed
3396 add_host_cflags $_flags $_cflags
3397 set_ccvars HOSTCC
3398
3399 test -n "$cc_type" && enable $cc_type ||
3400 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3401
3402 : ${as_default:=$cc}
3403 : ${objcc_default:=$cc}
3404 : ${dep_cc_default:=$cc}
3405 : ${ld_default:=$cc}
3406 : ${host_ld_default:=$host_cc}
3407 set_default ar as objcc dep_cc ld host_ld
3408
3409 probe_cc as "$as"
3410 asflags_filter=$_flags_filter
3411 add_asflags $_flags $_cflags
3412 set_ccvars AS
3413
3414 probe_cc objcc "$objcc"
3415 objcflags_filter=$_flags_filter
3416 add_objcflags $_flags $_cflags
3417 set_ccvars OBJC
3418
3419 probe_cc ld "$ld"
3420 ldflags_filter=$_flags_filter
3421 add_ldflags $_flags $_ldflags
3422 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3423 LD_O=${_ld_o-$LD_O}
3424 LD_LIB=${_ld_lib-$LD_LIB}
3425 LD_PATH=${_ld_path-$LD_PATH}
3426
3427 probe_cc hostld "$host_ld"
3428 host_ldflags_filter=$_flags_filter
3429 add_host_ldflags $_flags $_ldflags
3430 HOSTLD_O=${_ld_o-$HOSTLD_O}
3431
3432 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3433 probe_cc depcc "$dep_cc"
3434 CCDEP=${_DEPCMD:-$DEPCMD}
3435 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3436 DEPCCFLAGS=$_flags
3437 fi
3438
3439 if $ar 2>&1 | grep -q Microsoft; then
3440 arflags="-nologo"
3441 ar_o='-out:$@'
3442 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3443 arflags='-Xany -r -c'
3444 ar_o='$@'
3445 else
3446 arflags="rc"
3447 ar_o='$@'
3448 fi
3449
3450 add_cflags $extra_cflags
3451 add_objcflags $extra_objcflags
3452 add_asflags $extra_cflags
3453
3454 if test -n "$sysroot"; then
3455 case "$cc_type" in
3456 gcc|llvm_gcc|clang)
3457 add_cppflags --sysroot="$sysroot"
3458 add_ldflags --sysroot="$sysroot"
3459 ;;
3460 esac
3461 fi
3462
3463 if test "$cpu" = host; then
3464 enabled cross_compile &&
3465 die "--cpu=host makes no sense when cross-compiling."
3466
3467 case "$cc_type" in
3468 gcc|llvm_gcc)
3469 check_native(){
3470 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3471 sed -n "/cc1.*$1=/{
3472 s/.*$1=\\([^ ]*\\).*/\\1/
3473 p
3474 q
3475 }" $TMPE
3476 }
3477 cpu=$(check_native -march || check_native -mcpu)
3478 ;;
3479 esac
3480
3481 test "${cpu:-host}" = host &&
3482 die "--cpu=host not supported with compiler $cc"
3483 fi
3484
3485 # Deal with common $arch aliases
3486 case "$arch" in
3487 aarch64|arm64)
3488 arch="aarch64"
3489 ;;
3490 arm*)
3491 arch="arm"
3492 ;;
3493 mips*|IP*)
3494 case "$arch" in
3495 *el)
3496 add_cppflags -EL
3497 add_ldflags -EL
3498 ;;
3499 *eb)
3500 add_cppflags -EB
3501 add_ldflags -EB
3502 ;;
3503 esac
3504 arch="mips"
3505 ;;
3506 parisc*|hppa*)
3507 arch="parisc"
3508 ;;
3509 "Power Macintosh"|ppc*|powerpc*)
3510 arch="ppc"
3511 ;;
3512 s390|s390x)
3513 arch="s390"
3514 ;;
3515 sh4|sh)
3516 arch="sh4"
3517 ;;
3518 sun4u|sparc*)
3519 arch="sparc"
3520 ;;
3521 tilegx|tile-gx)
3522 arch="tilegx"
3523 ;;
3524 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3525 arch="x86"
3526 ;;
3527 esac
3528
3529 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3530 enable $arch
3531
3532 # Add processor-specific flags
3533 if enabled aarch64; then
3534
3535 case $cpu in
3536 armv*)
3537 cpuflags="-march=$cpu"
3538 ;;
3539 *)
3540 cpuflags="-mcpu=$cpu"
3541 ;;
3542 esac
3543
3544 elif enabled alpha; then
3545
3546 cpuflags="-mcpu=$cpu"
3547
3548 elif enabled arm; then
3549
3550 check_arm_arch() {
3551 check_cpp_condition stddef.h \
3552 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3553 $cpuflags
3554 }
3555
3556 probe_arm_arch() {
3557 if check_arm_arch 4; then echo armv4
3558 elif check_arm_arch 4T; then echo armv4t
3559 elif check_arm_arch 5; then echo armv5
3560 elif check_arm_arch 5E; then echo armv5e
3561 elif check_arm_arch 5T; then echo armv5t
3562 elif check_arm_arch 5TE; then echo armv5te
3563 elif check_arm_arch 5TEJ; then echo armv5te
3564 elif check_arm_arch 6; then echo armv6
3565 elif check_arm_arch 6J; then echo armv6j
3566 elif check_arm_arch 6K; then echo armv6k
3567 elif check_arm_arch 6Z; then echo armv6z
3568 elif check_arm_arch 6ZK; then echo armv6zk
3569 elif check_arm_arch 6T2; then echo armv6t2
3570 elif check_arm_arch 7; then echo armv7
3571 elif check_arm_arch 7A 7_A; then echo armv7-a
3572 elif check_arm_arch 7S; then echo armv7-a
3573 elif check_arm_arch 7R 7_R; then echo armv7-r
3574 elif check_arm_arch 7M 7_M; then echo armv7-m
3575 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3576 elif check_arm_arch 8A 8_A; then echo armv8-a
3577 fi
3578 }
3579
3580 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3581
3582 case $cpu in
3583 armv*)
3584 cpuflags="-march=$cpu"
3585 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3586 ;;
3587 *)
3588 cpuflags="-mcpu=$cpu"
3589 case $cpu in
3590 cortex-a*) subarch=armv7a ;;
3591 cortex-r*) subarch=armv7r ;;
3592 cortex-m*) enable thumb; subarch=armv7m ;;
3593 arm11*) subarch=armv6 ;;
3594 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3595 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3596 *) subarch=$(probe_arm_arch) ;;
3597 esac
3598 ;;
3599 esac
3600
3601 case "$subarch" in
3602 armv5t*) enable fast_clz ;;
3603 armv[6-8]*) enable fast_clz fast_unaligned ;;
3604 esac
3605
3606 elif enabled avr32; then
3607
3608 case $cpu in
3609 ap7[02]0[0-2])
3610 subarch="avr32_ap"
3611 cpuflags="-mpart=$cpu"
3612 ;;
3613 ap)
3614 subarch="avr32_ap"
3615 cpuflags="-march=$cpu"
3616 ;;
3617 uc3[ab]*)
3618 subarch="avr32_uc"
3619 cpuflags="-mcpu=$cpu"
3620 ;;
3621 uc)
3622 subarch="avr32_uc"
3623 cpuflags="-march=$cpu"
3624 ;;
3625 esac
3626
3627 elif enabled bfin; then
3628
3629 cpuflags="-mcpu=$cpu"
3630
3631 elif enabled mips; then
3632
3633 cpuflags="-march=$cpu"
3634
3635 elif enabled ppc; then
3636
3637 disable ldbrx
3638
3639 case $(tolower $cpu) in
3640 601|ppc601|powerpc601)
3641 cpuflags="-mcpu=601"
3642 disable altivec
3643 ;;
3644 603*|ppc603*|powerpc603*)
3645 cpuflags="-mcpu=603"
3646 disable altivec
3647 ;;
3648 604*|ppc604*|powerpc604*)
3649 cpuflags="-mcpu=604"
3650 disable altivec
3651 ;;
3652 g3|75*|ppc75*|powerpc75*)
3653 cpuflags="-mcpu=750"
3654 disable altivec
3655 ;;
3656 g4|745*|ppc745*|powerpc745*)
3657 cpuflags="-mcpu=7450"
3658 disable vsx
3659 ;;
3660 74*|ppc74*|powerpc74*)
3661 cpuflags="-mcpu=7400"
3662 disable vsx
3663 ;;
3664 g5|970|ppc970|powerpc970)
3665 cpuflags="-mcpu=970"
3666 disable vsx
3667 ;;
3668 power[3-6]*)
3669 cpuflags="-mcpu=$cpu"
3670 disable vsx
3671 ;;
3672 power[7-8]*)
3673 cpuflags="-mcpu=$cpu"
3674 enable ldbrx
3675 ;;
3676 cell)
3677 cpuflags="-mcpu=cell"
3678 enable ldbrx
3679 disable vsx
3680 ;;
3681 e500mc)
3682 cpuflags="-mcpu=e500mc"
3683 disable altivec
3684 ;;
3685 e500v2)
3686 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3687 disable altivec
3688 disable dcbzl
3689 ;;
3690 e500)
3691 cpuflags="-mcpu=8540 -mhard-float"
3692 disable altivec
3693 disable dcbzl
3694 ;;
3695 esac
3696
3697 elif enabled sparc; then
3698
3699 case $cpu in
3700 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3701 cpuflags="-mcpu=$cpu"
3702 ;;
3703 ultrasparc*|niagara[234])
3704 cpuflags="-mcpu=$cpu"
3705 ;;
3706 esac
3707
3708 elif enabled x86; then
3709
3710 case $cpu in
3711 i[345]86|pentium)
3712 cpuflags="-march=$cpu"
3713 disable i686
3714 disable mmx
3715 ;;
3716 # targets that do NOT support nopl and conditional mov (cmov)
3717 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3718 cpuflags="-march=$cpu"
3719 disable i686
3720 ;;
3721 # targets that do support nopl and conditional mov (cmov)
3722 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3723 cpuflags="-march=$cpu"
3724 enable i686
3725 enable fast_cmov
3726 ;;
3727 # targets that do support conditional mov but on which it's slow
3728 pentium4|pentium4m|prescott|nocona)
3729 cpuflags="-march=$cpu"
3730 enable i686
3731 disable fast_cmov
3732 ;;
3733 esac
3734
3735 fi
3736
3737 if [ "$cpu" != generic ]; then
3738 add_cflags $cpuflags
3739 add_asflags $cpuflags
3740 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3741 fi
3742
3743 # compiler sanity check
3744 check_exec <<EOF
3745 int main(void){ return 0; }
3746 EOF
3747 if test "$?" != 0; then
3748 echo "$cc is unable to create an executable file."
3749 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3750 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3751 echo "Only do this if you know what cross compiling means."
3752 fi
3753 die "C compiler test failed."
3754 fi
3755
3756 add_cppflags -D_ISOC99_SOURCE
3757
3758 # some compilers silently accept -std=c11, so we also need to check that the
3759 # version macro is defined properly
3760 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3761 add_cflags -std=c11 ||
3762 check_cflags -std=c99
3763
3764 check_cppflags -D_FILE_OFFSET_BITS=64
3765 check_cppflags -D_LARGEFILE_SOURCE
3766
3767 add_host_cppflags -D_ISOC99_SOURCE
3768 check_host_cflags -std=c99
3769 check_host_cflags -Wall
3770 check_host_cflags $host_cflags_speed
3771
3772 check_64bit(){
3773 arch32=$1
3774 arch64=$2
3775 expr=$3
3776 check_code cc "" "int test[2*($expr) - 1]" &&
3777 subarch=$arch64 || subarch=$arch32
3778 }
3779
3780 case "$arch" in
3781 aarch64|alpha|ia64)
3782 spic=$shared
3783 ;;
3784 mips)
3785 check_64bit mips mips64 '_MIPS_SIM > 1'
3786 spic=$shared
3787 ;;
3788 parisc)
3789 check_64bit parisc parisc64 'sizeof(void *) > 4'
3790 spic=$shared
3791 ;;
3792 ppc)
3793 check_64bit ppc ppc64 'sizeof(void *) > 4'
3794 spic=$shared
3795 ;;
3796 s390)
3797 check_64bit s390 s390x 'sizeof(void *) > 4'
3798 spic=$shared
3799 ;;
3800 sparc)
3801 check_64bit sparc sparc64 'sizeof(void *) > 4'
3802 spic=$shared
3803 ;;
3804 x86)
3805 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3806 if test "$subarch" = "x86_64"; then
3807 spic=$shared
3808 fi
3809 ;;
3810 esac
3811
3812 enable $subarch
3813 enabled spic && enable_weak pic
3814
3815 enabled x86_64 && objformat=elf64 || objformat="elf32"
3816
3817 # OS specific
3818 case $target_os in
3819 aix)
3820 SHFLAGS=-shared
3821 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3822 enabled shared && add_ldflags -Wl,-brtl
3823 ;;
3824 android)
3825 disable symver
3826 enable section_data_rel_ro
3827 SLIB_INSTALL_NAME='$(SLIBNAME)'
3828 SLIB_INSTALL_LINKS=
3829 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3830 ;;
3831 haiku)
3832 prefix_default="/boot/common"
3833 network_extralibs="-lnetwork"
3834 host_extralibs=
3835 ;;
3836 sunos)
3837 SHFLAGS='-shared -Wl,-h,$$(@F)'
3838 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3839 network_extralibs="-lsocket -lnsl"
3840 # When using suncc to build, the Solaris linker will mark
3841 # an executable with each instruction set encountered by
3842 # the Solaris assembler. As our libraries contain their own
3843 # guards for processor-specific code, instead suppress
3844 # generation of the HWCAPS ELF section on Solaris x86 only.
3845 enabled_all suncc x86 &&
3846 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3847 add_ldflags -Wl,-M,mapfile
3848 nm_default='nm -P -g'
3849 version_script='-M'
3850 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3851 ;;
3852 netbsd)
3853 disable symver
3854 oss_indev_extralibs="-lossaudio"
3855 ;;
3856 openbsd|bitrig)
3857 disable symver
3858 SHFLAGS='-shared'
3859 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3860 SLIB_INSTALL_LINKS=
3861 oss_indev_extralibs="-lossaudio"
3862 ;;
3863 dragonfly)
3864 disable symver
3865 ;;
3866 freebsd)
3867 ;;
3868 bsd/os)
3869 add_extralibs -lpoll -lgnugetopt
3870 ;;
3871 darwin)
3872 enabled ppc && add_asflags -force_cpusubtype_ALL
3873 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3874 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3875 add_ldflags -Wl,-dynamic,-search_paths_first
3876 check_cflags -Werror=partial-availability
3877 SLIBSUF=".dylib"
3878 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3879 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3880 enabled x86_64 && objformat="macho64" || objformat="macho32"
3881 enabled_any pic shared ||
3882 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3883 check_header dispatch/dispatch.h &&
3884 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3885 if test -n "$sysroot"; then
3886 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3887 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3888 fi
3889 ;;
3890 msys*)
3891 die "Native MSYS builds are discouraged, please use the MINGW environment."
3892 ;;
3893 mingw32*|mingw64*)
3894 target_os=mingw32
3895 if enabled shared; then
3896 # Cannot build both shared and static libs when using dllexport.
3897 disable static
3898 fi
3899 check_ldflags -Wl,--nxcompat
3900 check_ldflags -Wl,--dynamicbase
3901 shlibdir_default="$bindir_default"
3902 SLIBPREF=""
3903 SLIBSUF=".dll"
3904 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3905 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3906 SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3907 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3908 SLIB_INSTALL_LINKS=
3909 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3910 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3911 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3912 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3913 enabled x86_64 && objformat="win64" || objformat="win32"
3914 ranlib=:
3915 enable dos_paths
3916 ;;
3917 win32|win64)
3918 disable symver
3919 if enabled shared; then
3920 # Link to the import library instead of the normal static library
3921 # for shared libs.
3922 LD_LIB='%.lib'
3923 # Cannot build both shared and static libs with MSVC or icl.
3924 disable static
3925 fi
3926 shlibdir_default="$bindir_default"
3927 SLIBPREF=""
3928 SLIBSUF=".dll"
3929 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3930 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3931 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3932 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3933 SLIB_INSTALL_LINKS=
3934 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3935 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3936 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3937 enabled x86_64 && objformat="win64" || objformat="win32"
3938 ranlib=:
3939 enable dos_paths
3940 ;;
3941 cygwin*)
3942 target_os=cygwin
3943 shlibdir_default="$bindir_default"
3944 SLIBPREF="cyg"
3945 SLIBSUF=".dll"
3946 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3947 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3948 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3949 SLIB_INSTALL_LINKS=
3950 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3951 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3952 enabled x86_64 && objformat="win64" || objformat="win32"
3953 enable dos_paths
3954 ;;
3955 *-dos|freedos|opendos)
3956 network_extralibs="-lsocket"
3957 objformat="coff"
3958 enable dos_paths
3959 add_cppflags -U__STRICT_ANSI__
3960 ;;
3961 linux)
3962 enable section_data_rel_ro
3963 ;;
3964 irix*)
3965 target_os=irix
3966 ranlib="echo ignoring ranlib"
3967 ;;
3968 os/2*)
3969 ln_s="cp -f"
3970 objformat="aout"
3971 add_cppflags -D_GNU_SOURCE
3972 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3973 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3974 LIBSUF="_s.a"
3975 SLIBPREF=""
3976 SLIBSUF=".dll"
3977 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3978 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3979 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3980 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3981 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3982 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3983 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3984 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3985 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3986 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3987 enable dos_paths
3988 ;;
3989 gnu/kfreebsd)
3990 add_cppflags -D_BSD_SOURCE
3991 ;;
3992 gnu)
3993 ;;
3994 qnx)
3995 add_cppflags -D_QNX_SOURCE
3996 network_extralibs="-lsocket"
3997 ;;
3998 symbian)
3999 SLIBSUF=".dll"
4000 enable dos_paths
4001 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4002 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4003 add_ldflags -Wl,--target1-abs,--no-undefined \
4004 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4005 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4006 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4007 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4008 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4009 ;;
4010 minix)
4011 ;;
4012 none)
4013 ;;
4014 *)
4015 die "Unknown OS '$target_os'."
4016 ;;
4017 esac
4018
4019 # determine libc flavour
4020
4021 probe_libc(){
4022 pfx=$1
4023 pfx_no_=${pfx%_}
4024 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4025 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4026 eval ${pfx}libc_type=uclibc
4027 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4028 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4029 eval ${pfx}libc_type=glibc
4030 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4031 # MinGW headers can be installed on Cygwin, so check for newlib first.
4032 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4033 eval ${pfx}libc_type=newlib
4034 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4035 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4036 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4037 eval ${pfx}libc_type=mingw64
4038 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4039 eval test \$${pfx_no_}cc_type = "gcc" &&
4040 add_${pfx}cppflags -D__printf__=__gnu_printf__
4041 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4042 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4043 eval ${pfx}libc_type=mingw32
4044 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4045 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4046 die "ERROR: MinGW32 runtime version must be >= 3.15."
4047 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4048 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4049 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4050 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4051 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4052 eval test \$${pfx_no_}cc_type = "gcc" &&
4053 add_${pfx}cppflags -D__printf__=__gnu_printf__
4054 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4055 eval ${pfx}libc_type=msvcrt
4056 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4057 if [ "$pfx" = host_ ]; then
4058 add_host_cppflags -Dsnprintf=_snprintf
4059 else
4060 add_compat strtod.o strtod=avpriv_strtod
4061 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4062 _snprintf=avpriv_snprintf \
4063 vsnprintf=avpriv_vsnprintf
4064 fi
4065 fi
4066 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4067 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4068 # 0x601 by default unless something else is set by the user.
4069 # This can easily lead to us detecting functions only present
4070 # in such new versions and producing binaries requiring windows 7.0.
4071 # Therefore explicitly set the default to XP unless the user has
4072 # set something else on the command line.
4073 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4074 # family. For these cases, configure is free to use any functions
4075 # found in the SDK headers by default. (Alternatively, we could force
4076 # _WIN32_WINNT to 0x0602 in that case.)
4077 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4078 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4079 #ifdef WINAPI_FAMILY
4080 #include <winapifamily.h>
4081 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4082 #error not desktop
4083 #endif
4084 #endif
4085 EOF
4086 if [ "$pfx" = "" ]; then
4087 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4088 fi
4089 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4090 eval ${pfx}libc_type=klibc
4091 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4092 eval ${pfx}libc_type=bionic
4093 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4094 eval ${pfx}libc_type=solaris
4095 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4096 else
4097 eval ${pfx}libc_type=default
4098 add_${pfx}cppflags -D_DEFAULT_SOURCE
4099 fi
4100 eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4101 }
4102
4103 probe_libc
4104 probe_libc host_
4105
4106 # hacks for compiler/libc/os combinations
4107
4108 case $libc_type in
4109 bionic)
4110 add_compat strtod.o strtod=avpriv_strtod
4111 ;;
4112 esac
4113
4114 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4115 add_cppflags '-I\$(SRC_PATH)/compat/float'
4116
4117 esc(){
4118 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4119 }
4120
4121 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4122
4123 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4124
4125 set_default $PATHS_LIST
4126 set_default nm
4127
4128 disabled optimizations || check_cflags -fomit-frame-pointer
4129
4130 enable_weak_pic() {
4131 disabled pic && return
4132 enable pic
4133 add_cppflags -DPIC
4134 case "$target_os" in
4135 mingw*|cygwin*|win*)
4136 ;;
4137 *)
4138 add_cflags -fPIC
4139 add_asflags -fPIC
4140 ;;
4141 esac
4142 }
4143
4144 enabled pic && enable_weak_pic
4145
4146 check_cc <<EOF || die "Symbol mangling check failed."
4147 int ff_extern;
4148 EOF
4149 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4150 extern_prefix=${sym%%ff_extern*}
4151
4152 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4153
4154 _restrict=
4155 for restrict_keyword in restrict __restrict__ __restrict; do
4156 check_cc <<EOF && _restrict=$restrict_keyword && break
4157 void foo(char * $restrict_keyword p);
4158 EOF
4159 done
4160
4161 check_cc <<EOF && enable pragma_deprecated
4162 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
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 $ARCH_EXT_LIST_ARM
4261
4262 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4263
4264 check_as <<EOF && enable as_arch_directive
4265 .arch armv7-a
4266 EOF
4267 check_as <<EOF && enable as_fpu_directive
4268 .fpu neon
4269 EOF
4270
4271 # llvm's integrated assembler supports .object_arch from llvm 3.5
4272 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4273 check_as <<EOF && enable as_object_arch
4274 .object_arch armv4
4275 EOF
4276
4277 # MS armasm fails to assemble our PIC constructs
4278 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4279
4280 elif enabled mips; then
4281
4282 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4283
4284 # make sure that only an instruction set is enabled
4285 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4286
4287 if enabled mips64; then
4288 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4289 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4290 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4291 else
4292 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4293 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4294 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4295 fi
4296
4297 elif enabled parisc; then
4298
4299 if enabled gcc; then
4300 case $($cc -dumpversion) in
4301 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4302 esac
4303 fi
4304
4305 elif enabled ppc; then
4306
4307 enable local_aligned_8 local_aligned_16 local_aligned_32
4308
4309 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4310 check_inline_asm ibm_asm '"add 0, 0, 0"'
4311 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4312 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4313
4314 if enabled altivec; then
4315 check_cflags -maltivec -mabi=altivec
4316
4317 # check if our compiler supports Motorola AltiVec C API
4318 check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4319 vector signed int v2 = (vector signed int) { 1 };
4320 v1 = vec_add(v1, v2);" ||
4321 disable altivec
4322
4323 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4324 fi
4325
4326 if enabled vsx; then
4327 check_cflags -mvsx &&
4328 check_code cc altivec.h "int v[4] = { 0 };
4329 vector signed int v1 = vec_vsx_ld(0, v);" ||
4330 disable vsx
4331 fi
4332
4333 if enabled power8; then
4334 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4335 fi
4336
4337 elif enabled x86; then
4338
4339 check_builtin rdtsc intrin.h "__rdtsc()"
4340 check_builtin mm_empty mmintrin.h "_mm_empty()"
4341
4342 enable local_aligned_8 local_aligned_16 local_aligned_32
4343
4344 # check whether EBP is available on x86
4345 # As 'i' is stored on the stack, this program will crash
4346 # if the base pointer is used to access it because the
4347 # base pointer is cleared in the inline assembly code.
4348 check_exec_crash <<EOF && enable ebp_available
4349 volatile int i=0;
4350 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4351 return i;
4352 EOF
4353
4354 # check whether EBX is available on x86
4355 check_inline_asm ebx_available '""::"b"(0)' &&
4356 check_inline_asm ebx_available '"":::"%ebx"'
4357
4358 # check whether xmm clobbers are supported
4359 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4360
4361 # check whether binutils is new enough to compile SSSE3/MMXEXT
4362 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4363 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4364
4365 probe_x86asm(){
4366 x86asmexe_probe=$1
4367 if check_cmd $x86asmexe_probe -v; then
4368 x86asmexe=$x86asmexe_probe
4369 x86asm_type=nasm
4370 x86asm_debug="-g -F dwarf"
4371 X86ASMDEP=
4372 X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4373 elif check_cmd $x86asmexe_probe --version; then
4374 x86asmexe=$x86asmexe_probe
4375 x86asm_type=yasm
4376 x86asm_debug="-g dwarf2"
4377 X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4378 X86ASM_DEPFLAGS=
4379 fi
4380 check_x86asm "movbe ecx, [5]" && enable x86asm
4381 }
4382
4383 if ! disabled_any asm mmx x86asm; then
4384 disable x86asm
4385 for program in $x86asmexe nasm yasm; do
4386 probe_x86asm $program && break
4387 done
4388 disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4389 X86ASMFLAGS="-f $objformat"
4390 enabled pic && append X86ASMFLAGS "-DPIC"
4391 test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
4392 case "$objformat" in
4393</