build: Merge mach/mach_time.h and mach_absolute_time() checks
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-pod2man do not build manual pages
117 --disable-texi2html do not build HTML documentation
118 --disable-avdevice disable libavdevice build
119 --disable-avcodec disable libavcodec build
120 --disable-avformat disable libavformat build
121 --disable-avutil disable libavutil build
122 --disable-swscale disable libswscale build
123 --disable-avfilter disable video filter support [no]
124 --disable-avresample disable libavresample build [no]
125 --disable-pthreads disable pthreads [auto]
126 --disable-w32threads disable Win32 threads [auto]
127 --disable-network disable network support [no]
128 --disable-dct disable DCT code
129 --disable-error-resilience disable error resilience code
130 --disable-lsp disable LSP code
131 --disable-lzo disable LZO decoder code
132 --disable-mdct disable MDCT code
133 --disable-rdft disable RDFT code
134 --disable-fft disable FFT code
135 --disable-faan disable floating point AAN (I)DCT code
136
137 Individual component options:
138 --disable-everything disable all components listed below
139 --disable-encoder=NAME disable encoder NAME
140 --enable-encoder=NAME enable encoder NAME
141 --disable-encoders disable all encoders
142 --disable-decoder=NAME disable decoder NAME
143 --enable-decoder=NAME enable decoder NAME
144 --disable-decoders disable all decoders
145 --disable-hwaccel=NAME disable hwaccel NAME
146 --enable-hwaccel=NAME enable hwaccel NAME
147 --disable-hwaccels disable all hwaccels
148 --disable-muxer=NAME disable muxer NAME
149 --enable-muxer=NAME enable muxer NAME
150 --disable-muxers disable all muxers
151 --disable-demuxer=NAME disable demuxer NAME
152 --enable-demuxer=NAME enable demuxer NAME
153 --disable-demuxers disable all demuxers
154 --enable-parser=NAME enable parser NAME
155 --disable-parser=NAME disable parser NAME
156 --disable-parsers disable all parsers
157 --enable-bsf=NAME enable bitstream filter NAME
158 --disable-bsf=NAME disable bitstream filter NAME
159 --disable-bsfs disable all bitstream filters
160 --enable-protocol=NAME enable protocol NAME
161 --disable-protocol=NAME disable protocol NAME
162 --disable-protocols disable all protocols
163 --enable-indev=NAME enable input device NAME
164 --disable-indev=NAME disable input device NAME
165 --disable-indevs disable input devices
166 --enable-outdev=NAME enable output device NAME
167 --disable-outdev=NAME disable output device NAME
168 --disable-outdevs disable output devices
169 --disable-devices disable all devices
170 --enable-filter=NAME enable filter NAME
171 --disable-filter=NAME disable filter NAME
172 --disable-filters disable all filters
173
174 External library support:
175
176 Using any of the following switches will allow Libav to link to the
177 corresponding external library. All the components depending on that library
178 will become enabled, if all their other dependencies are met and they are not
179 explicitly disabled. E.g. --enable-libwavpack will enable linking to
180 libwavpack and allow the libwavpack encoder to be built, unless it is
181 specifically disabled with --disable-encoder=libwavpack.
182
183 Note that only the system libraries are auto-detected. All the other external
184 libraries must be explicitly enabled.
185
186 Also note that the following help text describes the purpose of the libraries
187 themselves, not all their features will necessarily be usable by Libav.
188
189 --enable-avisynth video frameserver
190 --enable-avxsynth Linux version of AviSynth
191 --enable-bzlib bzip2 compression [autodetect]
192 --enable-frei0r video filtering plugins
193 --enable-gnutls crypto
194 --enable-libbs2b Bauer stereophonic-to-binaural DSP
195 --enable-libcdio audio CD input
196 --enable-libdc1394 IEEE 1394/Firewire camera input
197 --enable-libdcadec DCA audio decoding
198 --enable-libfaac AAC audio encoding
199 --enable-libfdk-aac AAC audio encoding/decoding
200 --enable-libfontconfig font configuration and management
201 --enable-libfreetype font rendering
202 --enable-libgsm GSM audio encoding/decoding
203 --enable-libhdcd HDCD decoding filter
204 --enable-libilbc ILBC audio encoding/decoding
205 --enable-libjack JACK audio sound server
206 --enable-libkvazaar HEVC video encoding
207 --enable-libmp3lame MP3 audio encoding
208 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
209 --enable-libopencore-amrwb AMR-WB audio decoding
210 --enable-libopencv computer vision
211 --enable-libopenh264 H.264 video encoding/decoding
212 --enable-libopenjpeg JPEG 2000 image encoding/decoding
213 --enable-libopus Opus audio encoding/decoding
214 --enable-libpulse Pulseaudio sound server
215 --enable-librtmp RTMP streaming
216 --enable-libschroedinger Dirac video encoding/decoding
217 --enable-libsnappy snappy compression
218 --enable-libspeex Speex audio encoding/decoding
219 --enable-libtheora Theora video encoding/decoding
220 --enable-libtwolame MP2 audio encoding
221 --enable-libvo-aacenc AAC audio encoding
222 --enable-libvo-amrwbenc AMR-WB audio encoding
223 --enable-libvorbis Vorbis audio encoding/decoding
224 --enable-libvpx VP* video encoding/decoding
225 --enable-libwavpack Wavpack audio encoding/decoding
226 --enable-libwebp WebP image encoding/decoding
227 --enable-libx264 H.264 video encoding
228 --enable-libx265 HEVC video encoding
229 --enable-libxavs Chinese AVS video encoding
230 --enable-libxcb X window system protocol communication
231 --enable-libxcb-shm X11 shm communication [auto]
232 --enable-libxcb-xfixes X11 mouse rendering [auto]
233 --enable-libxvid MPEG-4 ASP video encoding
234 --enable-openssl crypto
235 --enable-zlib compression [autodetect]
236
237 The following libraries provide various hardware acceleration features:
238 --enable-cuda Nvidia CUDA (dynamically linked)
239 --enable-cuvid Nvidia CUVID video decode acceleration
240 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
241 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
242 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
243 --enable-libnpp Nvidia CUDA processing
244 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
245 --enable-nvenc Nvidia video encoding
246 --enable-omx OpenMAX IL
247 --enable-omx-rpi OpenMAX IL for Raspberry Pi
248 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
249 --enable-vda Apple Video Decode Acceleration [auto]
250 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251
252 Toolchain options:
253 --arch=ARCH select architecture [$arch]
254 --cpu=CPU select the minimum required CPU (affects
255 instruction selection, may crash on older CPUs)
256 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
257 --enable-cross-compile assume a cross-compiler is used
258 --sysroot=PATH root of cross-build tree
259 --sysinclude=PATH location of cross-build system headers
260 --target-os=OS compiler targets OS [$target_os]
261 --target-exec=CMD command to run executables on target
262 --target-path=DIR path to view of build directory on target
263 --target-samples=DIR path to samples directory on target
264 --toolchain=NAME set tool defaults according to NAME
265 --nm=NM use nm tool
266 --ar=AR use archive tool AR [$ar_default]
267 --as=AS use assembler AS [$as_default]
268 --cc=CC use C compiler CC [$cc_default]
269 --objcc=OCC use ObjC compiler OCC [$cc_default]
270 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
271 --ld=LD use linker LD
272 --x86asmexe=X86ASM use x86 assembler X86ASM
273 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
274 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
275 --host-cc=HOSTCC use host C compiler HOSTCC
276 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
277 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
278 --host-ld=HOSTLD use host linker HOSTLD
279 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
280 --host-libs=HLIBS use libs HLIBS when linking for host
281 --host-os=OS compiler host OS [$target_os]
282 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
283 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
284 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
285 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
286 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
287 --extra-libs=ELIBS add ELIBS [$ELIBS]
288 --extra-version=STRING version string suffix []
289 --optflags=OPTFLAGS override optimization-related compiler flags
290 --enable-pic build position-independent code
291 --enable-thumb compile for Thumb instruction set
292 --enable-lto use link-time optimization
293 --env="ENV=override" override the environment variables
294
295 Advanced options (experts only):
296 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
297 --custom-allocator=NAME use a supported custom allocator
298 --disable-symver disable symbol versioning
299 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
300 --disable-safe-bitstream-reader
301 disable buffer boundary checking in bitreaders
302 (faster, but may crash)
303 --enable-sram allow use of on-chip SRAM
304
305 Optimization options (experts only):
306 --disable-asm disable all assembly optimizations
307 --disable-altivec disable AltiVec optimizations
308 --disable-vsx disable VSX optimizations
309 --disable-power8 disable POWER8 optimizations
310 --disable-amd3dnow disable 3DNow! optimizations
311 --disable-amd3dnowext disable 3DNow! extended optimizations
312 --disable-mmx disable MMX optimizations
313 --disable-mmxext disable MMXEXT optimizations
314 --disable-sse disable SSE optimizations
315 --disable-sse2 disable SSE2 optimizations
316 --disable-sse3 disable SSE3 optimizations
317 --disable-ssse3 disable SSSE3 optimizations
318 --disable-sse4 disable SSE4 optimizations
319 --disable-sse42 disable SSE4.2 optimizations
320 --disable-avx disable AVX optimizations
321 --disable-xop disable XOP optimizations
322 --disable-fma3 disable FMA3 optimizations
323 --disable-fma4 disable FMA4 optimizations
324 --disable-avx2 disable AVX2 optimizations
325 --disable-armv5te disable armv5te optimizations
326 --disable-armv6 disable armv6 optimizations
327 --disable-armv6t2 disable armv6t2 optimizations
328 --disable-vfp disable VFP optimizations
329 --disable-neon disable NEON optimizations
330 --disable-inline-asm disable use of inline assembly
331 --disable-x86asm disable use of standalone x86 assembly
332
333 Developer options (useful when working on Libav itself):
334 --disable-debug disable debugging symbols
335 --enable-debug=LEVEL set the debug level [$debuglevel]
336 --disable-optimizations disable compiler optimizations
337 --enable-extra-warnings enable more compiler warnings
338 --samples=PATH location of test samples for FATE, if not set use
339 \$LIBAV_SAMPLES at make invocation time.
340 --enable-neon-clobber-test check NEON registers for clobbering (should be
341 used only for debugging purposes)
342 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
343 should be used only for debugging purposes)
344 --disable-valgrind-backtrace do not print a backtrace under Valgrind
345 (only applies to --disable-optimizations builds)
346 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
347 in the name) of tests whose result is ignored
348
349 NOTE: Object files are built at the place where configure is launched.
350 EOF
351 exit 0
352 }
353
354 quotes='""'
355
356 log(){
357 echo "$@" >> $logfile
358 }
359
360 log_file(){
361 log BEGIN $1
362 i=1
363 while read line; do
364 printf '%5s %s\n' "${i}" "${line}"
365 i=$(($i+1))
366 done < $1 >> $logfile
367 log END $1
368 }
369
370 echolog(){
371 log "$@"
372 echo "$@"
373 }
374
375 warn(){
376 log "WARNING: $*"
377 WARNINGS="${WARNINGS}WARNING: $*\n"
378 }
379
380 die(){
381 echolog "$@"
382 cat <<EOF
383
384 If you think configure made a mistake, make sure you are using the latest
385 version from Git. If the latest version fails, report the problem to the
386 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
387 EOF
388 if disabled logging; then
389 cat <<EOF
390 Rerun configure with logging enabled (do not use --disable-logging), and
391 include the log this produces with your report.
392 EOF
393 else
394 cat <<EOF
395 Include the log file "$logfile" produced by configure as this will help
396 solving the problem.
397 EOF
398 fi
399 exit 1
400 }
401
402 # Avoid locale weirdness, besides we really just want to translate ASCII.
403 toupper(){
404 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
405 }
406
407 tolower(){
408 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
409 }
410
411 c_escape(){
412 echo "$*" | sed 's/["\\]/\\\0/g'
413 }
414
415 sh_quote(){
416 v=$(echo "$1" | sed "s/'/'\\\\''/g")
417 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
418 echo "$v"
419 }
420
421 cleanws(){
422 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
423 }
424
425 filter(){
426 pat=$1
427 shift
428 for v; do
429 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
430 done
431 }
432
433 filter_out(){
434 pat=$1
435 shift
436 for v; do
437 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
438 done
439 }
440
441 map(){
442 m=$1
443 shift
444 for v; do eval $m; done
445 }
446
447 add_suffix(){
448 suffix=$1
449 shift
450 for v; do echo ${v}${suffix}; done
451 }
452
453 set_all(){
454 value=$1
455 shift
456 for var in $*; do
457 eval $var=$value
458 done
459 }
460
461 set_weak(){
462 value=$1
463 shift
464 for var; do
465 eval : \${$var:=$value}
466 done
467 }
468
469 sanitize_var_name(){
470 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
471 }
472
473 set_sanitized(){
474 var=$1
475 shift
476 eval $(sanitize_var_name "$var")='$*'
477 }
478
479 get_sanitized(){
480 eval echo \$$(sanitize_var_name "$1")
481 }
482
483 pushvar(){
484 for pvar in $*; do
485 eval level=\${${pvar}_level:=0}
486 eval ${pvar}_${level}="\$$pvar"
487 eval ${pvar}_level=$(($level+1))
488 done
489 }
490
491 popvar(){
492 for pvar in $*; do
493 eval level=\${${pvar}_level:-0}
494 test $level = 0 && continue
495 eval level=$(($level-1))
496 eval $pvar="\${${pvar}_${level}}"
497 eval ${pvar}_level=$level
498 eval unset ${pvar}_${level}
499 done
500 }
501
502 enable(){
503 set_all yes $*
504 }
505
506 disable(){
507 set_all no $*
508 }
509
510 enable_weak(){
511 set_weak yes $*
512 }
513
514 disable_weak(){
515 set_weak no $*
516 }
517
518 enable_sanitized(){
519 for var; do
520 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
521 done
522 }
523
524 disable_sanitized(){
525 for var; do
526 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
527 done
528 }
529
530 do_enable_deep(){
531 for var; do
532 enabled $var && continue
533 eval sel="\$${var}_select"
534 eval sgs="\$${var}_suggest"
535 pushvar var sgs
536 enable_deep $sel
537 popvar sgs
538 enable_deep_weak $sgs
539 popvar var
540 done
541 }
542
543 enable_deep(){
544 do_enable_deep $*
545 enable $*
546 }
547
548 enable_deep_weak(){
549 for var; do
550 disabled $var && continue
551 pushvar var
552 do_enable_deep $var
553 popvar var
554 enable_weak $var
555 done
556 }
557
558 enabled(){
559 test "${1#!}" = "$1" && op== || op=!=
560 eval test "x\$${1#!}" $op "xyes"
561 }
562
563 disabled(){
564 test "${1#!}" = "$1" && op== || op=!=
565 eval test "x\$${1#!}" $op "xno"
566 }
567
568 enabled_all(){
569 for opt; do
570 enabled $opt || return 1
571 done
572 }
573
574 disabled_all(){
575 for opt; do
576 disabled $opt || return 1
577 done
578 }
579
580 enabled_any(){
581 for opt; do
582 enabled $opt && return 0
583 done
584 }
585
586 disabled_any(){
587 for opt; do
588 disabled $opt && return 0
589 done
590 return 1
591 }
592
593 set_default(){
594 for opt; do
595 eval : \${$opt:=\$${opt}_default}
596 done
597 }
598
599 is_in(){
600 value=$1
601 shift
602 for var in $*; do
603 [ $var = $value ] && return 0
604 done
605 return 1
606 }
607
608 check_deps(){
609 for cfg; do
610 enabled ${cfg}_checking && die "Circular dependency for $cfg."
611 disabled ${cfg}_checking && continue
612 enable ${cfg}_checking
613
614 eval dep_all="\$${cfg}_deps"
615 eval dep_any="\$${cfg}_deps_any"
616 eval dep_con="\$${cfg}_conflict"
617 eval dep_sel="\$${cfg}_select"
618 eval dep_sgs="\$${cfg}_suggest"
619 eval dep_ifa="\$${cfg}_if"
620 eval dep_ifn="\$${cfg}_if_any"
621
622 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
623 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
624 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
625
626 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
627 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
628 enabled_all $dep_all || disable $cfg
629 enabled_any $dep_any || disable $cfg
630 disabled_all $dep_con || disable $cfg
631 disabled_any $dep_sel && disable $cfg
632
633 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
634
635 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
636 # filter out library deps, these do not belong in extralibs
637 is_in $dep $LIBRARY_LIST && continue
638 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
639 done
640
641 disable ${cfg}_checking
642 done
643 }
644
645 print_config(){
646 pfx=$1
647 files=$2
648 shift 2
649 map 'eval echo "$v \${$v:-no}"' "$@" |
650 awk "BEGIN { split(\"$files\", files) }
651 {
652 c = \"$pfx\" toupper(\$1);
653 v = \$2;
654 sub(/yes/, 1, v);
655 sub(/no/, 0, v);
656 for (f in files) {
657 file = files[f];
658 if (file ~ /\\.h\$/) {
659 printf(\"#define %s %d\\n\", c, v) >>file;
660 } else if (file ~ /\\.asm\$/) {
661 printf(\"%%define %s %d\\n\", c, v) >>file;
662 } else if (file ~ /\\.mak\$/) {
663 n = -v ? \"\" : \"!\";
664 printf(\"%s%s=yes\\n\", n, c) >>file;
665 }
666 }
667 }"
668 }
669
670 print_enabled(){
671 suf=$1
672 shift
673 for v; do
674 enabled $v && printf "%s\n" ${v%$suf}
675 done
676 }
677
678 append(){
679 var=$1
680 shift
681 eval "$var=\"\$$var $*\""
682 }
683
684 prepend(){
685 var=$1
686 shift
687 eval "$var=\"$* \$$var\""
688 }
689
690 unique(){
691 var=$1
692 uniq_list=""
693 for tok in $(eval echo \$$var); do
694 uniq_list="$(filter_out $tok $uniq_list) $tok"
695 done
696 eval "$var=\"${uniq_list}\""
697 }
698
699 resolve(){
700 var=$1
701 tmpvar=
702 for entry in $(eval echo \$$var); do
703 tmpvar="$tmpvar $(eval echo \$${entry})"
704 done
705 eval "$var=\"${tmpvar}\""
706 }
707
708 add_cppflags(){
709 append CPPFLAGS "$@"
710 }
711
712 add_cflags(){
713 append CFLAGS $($cflags_filter "$@")
714 }
715
716 add_cflags_headers(){
717 append CFLAGS_HEADERS $($cflags_filter "$@")
718 }
719
720 add_asflags(){
721 append ASFLAGS $($asflags_filter "$@")
722 }
723
724 add_objcflags(){
725 append OBJCFLAGS $($objcflags_filter "$@")
726 }
727
728 add_ldflags(){
729 append LDFLAGS $($ldflags_filter "$@")
730 }
731
732 add_ldexeflags(){
733 append LDEXEFLAGS $($ldflags_filter "$@")
734 }
735
736 add_ldsoflags(){
737 append LDSOFLAGS $($ldflags_filter "$@")
738 }
739
740 add_stripflags(){
741 append STRIPFLAGS "$@"
742 }
743
744 add_extralibs(){
745 prepend extralibs $($ldflags_filter "$@")
746 }
747
748 add_host_cppflags(){
749 append host_cppflags "$@"
750 }
751
752 add_host_cflags(){
753 append host_cflags $($host_cflags_filter "$@")
754 }
755
756 add_host_ldflags(){
757 append host_ldflags $($host_ldflags_filter "$@")
758 }
759
760 add_compat(){
761 append compat_objs $1
762 shift
763 map 'add_cppflags -D$v' "$@"
764 }
765
766 check_cmd(){
767 log "$@"
768 "$@" >> $logfile 2>&1
769 }
770
771 cc_o(){
772 eval printf '%s\\n' $CC_O
773 }
774
775 cc_e(){
776 eval printf '%s\\n' $CC_E
777 }
778
779 check_cc(){
780 log check_cc "$@"
781 cat > $TMPC
782 log_file $TMPC
783 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
784 }
785
786 check_objcc(){
787 log check_objcc "$@"
788 cat > $TMPC
789 log_file $TMPC
790 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
791 }
792
793 check_cpp(){
794 log check_cpp "$@"
795 cat > $TMPC
796 log_file $TMPC
797 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
798 }
799
800 as_o(){
801 eval printf '%s\\n' $AS_O
802 }
803
804 check_as(){
805 log check_as "$@"
806 cat > $TMPS
807 log_file $TMPS
808 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
809 }
810
811 check_inline_asm(){
812 log check_inline_asm "$@"
813 name="$1"
814 code="$2"
815 shift 2
816 disable $name
817 check_cc "$@" <<EOF && enable $name
818 void foo(void){ __asm__ volatile($code); }
819 EOF
820 }
821
822 check_insn(){
823 log check_insn "$@"
824 check_inline_asm ${1}_inline "\"$2\""
825 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
826 }
827
828 check_x86asm(){
829 log check_x86asm "$@"
830 echo "$1" > $TMPS
831 log_file $TMPS
832 shift 1
833 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
834 }
835
836 ld_o(){
837 eval printf '%s\\n' $LD_O
838 }
839
840 check_ld(){
841 log check_ld "$@"
842 flags=$(filter_out '-l*' "$@")
843 libs=$(filter '-l*' "$@")
844 check_cc $($cflags_filter $flags) || return
845 flags=$($ldflags_filter $flags)
846 libs=$($ldflags_filter $libs)
847 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
848 }
849
850 print_include(){
851 hdr=$1
852 test "${hdr%.h}" = "${hdr}" &&
853 echo "#include $hdr" ||
854 echo "#include <$hdr>"
855 }
856
857 check_code(){
858 log check_code "$@"
859 check=$1
860 headers=$2
861 code=$3
862 shift 3
863 {
864 for hdr in $headers; do
865 print_include $hdr
866 done
867 echo "int main(void) { $code; return 0; }"
868 } | check_$check "$@"
869 }
870
871 check_cppflags(){
872 log check_cppflags "$@"
873 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
874 #include <stdlib.h>;
875 EOF
876 }
877
878 test_cflags(){
879 log test_cflags "$@"
880 set -- $($cflags_filter "$@")
881 check_cc "$@" <<EOF
882 int x;
883 EOF
884 }
885
886 check_cflags(){
887 log check_cflags "$@"
888 test_cflags "$@" && add_cflags "$@"
889 }
890
891 test_objcflags(){
892 log test_objcflags "$@"
893 set -- $($objcflags_filter "$@")
894 check_objcc "$@" <<EOF
895 int x;
896 EOF
897 }
898
899 check_objcflags(){
900 log check_objcflags "$@"
901 test_objcflags "$@" && add_objcflags "$@"
902 }
903
904 test_ldflags(){
905 log test_ldflags "$@"
906 check_ld "$@" <<EOF
907 int main(void){ return 0; }
908 EOF
909 }
910
911 check_ldflags(){
912 log check_ldflags "$@"
913 test_ldflags "$@" && add_ldflags "$@"
914 }
915
916 test_stripflags(){
917 log test_stripflags "$@"
918 # call check_cc to get a fresh TMPO
919 check_cc <<EOF
920 int main(void) { return 0; }
921 EOF
922 check_cmd $strip $STRIPFLAGS "$@" $TMPO
923 }
924
925 check_stripflags(){
926 log check_stripflags "$@"
927 test_stripflags "$@" && add_stripflags "$@"
928 }
929
930 check_header(){
931 log check_header "$@"
932 header=$1
933 shift
934 disable_sanitized $header
935 check_cpp "$@" <<EOF && enable_sanitized $header
936 #include <$header>
937 int x;
938 EOF
939 }
940
941 check_func(){
942 log check_func "$@"
943 func=$1
944 shift
945 disable $func
946 check_ld "$@" <<EOF && enable $func
947 extern int $func();
948 int main(void){ $func(); }
949 EOF
950 }
951
952 check_mathfunc(){
953 log check_mathfunc "$@"
954 func=$1
955 narg=$2
956 shift 2
957 test $narg = 2 && args="f, g" || args="f"
958 disable $func
959 check_ld "$@" <<EOF && enable $func
960 #include <math.h>
961 float foo(float f, float g) { return $func($args); }
962 int main(void){ return 0; }
963 EOF
964 }
965
966 check_func_headers(){
967 log check_func_headers "$@"
968 headers=$1
969 funcs=$2
970 shift 2
971 {
972 for hdr in $headers; do
973 print_include $hdr
974 done
975 for func in $funcs; do
976 echo "long check_$func(void) { return (long) $func; }"
977 done
978 echo "int main(void) { return 0; }"
979 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
980 }
981
982 check_cpp_condition(){
983 log check_cpp_condition "$@"
984 header=$1
985 condition=$2
986 shift 2
987 check_cpp "$@" <<EOF
988 #include <$header>
989 #if !($condition)
990 #error "unsatisfied condition: $condition"
991 #endif
992 EOF
993 }
994
995 test_cflags_cpp(){
996 log test_cflags_cpp "$@"
997 flags=$1
998 condition=$2
999 shift 2
1000 set -- $($cflags_filter "$flags")
1001 check_cpp "$@" <<EOF
1002 #if !($condition)
1003 #error "unsatisfied condition: $condition"
1004 #endif
1005 EOF
1006 }
1007
1008 check_lib(){
1009 log check_lib "$@"
1010 name="$1"
1011 headers="$2"
1012 funcs="$3"
1013 shift 3
1014 disable $name
1015 check_func_headers "$headers" "$funcs" "$@" &&
1016 enable $name && eval ${name}_extralibs="\$@"
1017 }
1018
1019 test_pkg_config(){
1020 log test_pkg_config "$@"
1021 name="$1"
1022 pkg_version="$2"
1023 pkg="${2%% *}"
1024 headers="$3"
1025 funcs="$4"
1026 shift 4
1027 disable $name
1028 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1029 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1030 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1031 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1032 enable $name &&
1033 set_sanitized "${name}_cflags" $pkg_cflags &&
1034 set_sanitized "${name}_extralibs" $pkg_libs
1035 }
1036
1037 check_pkg_config(){
1038 log check_pkg_config "$@"
1039 name="$1"
1040 test_pkg_config "$@" &&
1041 eval add_cflags \$${name}_cflags
1042 }
1043
1044 check_exec(){
1045 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1046 }
1047
1048 check_exec_crash(){
1049 log check_exec_crash "$@"
1050 code=$(cat)
1051
1052 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1053 # are safe but may not be available everywhere. Thus we use
1054 # raise(SIGTERM) instead. The check is run in a subshell so we
1055 # can redirect the "Terminated" message from the shell. SIGBUS
1056 # is not defined by standard C so it is used conditionally.
1057
1058 (check_exec "$@") >> $logfile 2>&1 <<EOF
1059 #include <signal.h>
1060 static void sighandler(int sig){
1061 raise(SIGTERM);
1062 }
1063 int foo(void){
1064 $code
1065 }
1066 int (*func_ptr)(void) = foo;
1067 int main(void){
1068 signal(SIGILL, sighandler);
1069 signal(SIGFPE, sighandler);
1070 signal(SIGSEGV, sighandler);
1071 #ifdef SIGBUS
1072 signal(SIGBUS, sighandler);
1073 #endif
1074 return func_ptr();
1075 }
1076 EOF
1077 }
1078
1079 check_type(){
1080 log check_type "$@"
1081 headers=$1
1082 type=$2
1083 shift 2
1084 disable_sanitized "$type"
1085 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1086 }
1087
1088 check_struct(){
1089 log check_struct "$@"
1090 headers=$1
1091 struct=$2
1092 member=$3
1093 shift 3
1094 disable_sanitized "${struct}_${member}"
1095 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1096 enable_sanitized "${struct}_${member}"
1097 }
1098
1099 check_builtin(){
1100 log check_builtin "$@"
1101 name=$1
1102 headers=$2
1103 builtin=$3
1104 shift 3
1105 disable "$name"
1106 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1107 }
1108
1109 check_compile_assert(){
1110 log check_compile_assert "$@"
1111 name=$1
1112 headers=$2
1113 condition=$3
1114 shift 3
1115 disable "$name"
1116 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1117 }
1118
1119 require(){
1120 log require "$@"
1121 name_version="$1"
1122 name="${1%% *}"
1123 headers="$2"
1124 func="$3"
1125 shift 3
1126 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1127 }
1128
1129 require_header(){
1130 log require "$@"
1131 header="$1"
1132 shift
1133 check_header "$header" "$@" || die "ERROR: $header not found"
1134 }
1135
1136 require_cpp_condition(){
1137 log require "$@"
1138 header="$1"
1139 condition="$2"
1140 shift 2
1141 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1142 }
1143
1144 require_pkg_config(){
1145 log require_pkg_config "$@"
1146 pkg_version="$2"
1147 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1148 }
1149
1150 hostcc_e(){
1151 eval printf '%s\\n' $HOSTCC_E
1152 }
1153
1154 hostcc_o(){
1155 eval printf '%s\\n' $HOSTCC_O
1156 }
1157
1158 check_host_cc(){
1159 log check_host_cc "$@"
1160 cat > $TMPC
1161 log_file $TMPC
1162 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1163 }
1164
1165 check_host_cpp(){
1166 log check_host_cpp "$@"
1167 cat > $TMPC
1168 log_file $TMPC
1169 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1170 }
1171
1172 check_host_cppflags(){
1173 log check_host_cppflags "$@"
1174 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1175 #include <stdlib.h>;
1176 EOF
1177 }
1178
1179 check_host_cflags(){
1180 log check_host_cflags "$@"
1181 set -- $($host_cflags_filter "$@")
1182 check_host_cc "$@" <<EOF && append host_cflags "$@"
1183 int x;
1184 EOF
1185 }
1186
1187 check_host_cpp_condition(){
1188 log check_host_cpp_condition "$@"
1189 header=$1
1190 condition=$2
1191 shift 2
1192 check_host_cpp "$@" <<EOF
1193 #include <$header>
1194 #if !($condition)
1195 #error "unsatisfied condition: $condition"
1196 #endif
1197 EOF
1198 }
1199
1200 apply(){
1201 file=$1
1202 shift
1203 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1204 }
1205
1206 cp_if_changed(){
1207 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1208 mkdir -p "$(dirname $2)"
1209 cp -f "$1" "$2"
1210 }
1211
1212 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1213 # system-dependent things.
1214
1215 AVCODEC_COMPONENTS="
1216 bsfs
1217 decoders
1218 encoders
1219 hwaccels
1220 parsers
1221 "
1222
1223 AVDEVICE_COMPONENTS="
1224 indevs
1225 outdevs
1226 "
1227 AVFILTER_COMPONENTS="
1228 filters
1229 "
1230 AVFORMAT_COMPONENTS="
1231 demuxers
1232 muxers
1233 protocols
1234 "
1235
1236 COMPONENT_LIST="
1237 $AVCODEC_COMPONENTS
1238 $AVDEVICE_COMPONENTS
1239 $AVFILTER_COMPONENTS
1240 $AVFORMAT_COMPONENTS
1241 "
1242
1243 EXAMPLE_LIST="
1244 decode_audio_example
1245 decode_video_example
1246 encode_audio_example
1247 encode_video_example
1248 filter_audio_example
1249 metadata_example
1250 output_example
1251 qsvdec_example
1252 transcode_aac_example
1253 "
1254
1255 # catchall list of things that require external libs to link
1256 EXTRALIBS_LIST="
1257 cpu_init
1258 cws2fws
1259 "
1260
1261 HWACCEL_LIBRARY_NONFREE_LIST="
1262 cuda
1263 cuvid
1264 libnpp
1265 "
1266 HWACCEL_LIBRARY_LIST="
1267 $HWACCEL_LIBRARY_NONFREE_LIST
1268 d3d11va
1269 dxva2
1270 libmfx
1271 mmal
1272 nvenc
1273 omx
1274 vaapi
1275 vda
1276 vdpau
1277 "
1278
1279 EXTERNAL_LIBRARY_GPL_LIST="
1280 libcdio
1281 libx264
1282 libx265
1283 libxavs
1284 libxvid
1285 "
1286
1287 EXTERNAL_LIBRARY_NONFREE_LIST="
1288 libfaac
1289 libfdk_aac
1290 openssl
1291 "
1292
1293 EXTERNAL_LIBRARY_VERSION3_LIST="
1294 libopencore_amrnb
1295 libopencore_amrwb
1296 libvo_aacenc
1297 libvo_amrwbenc
1298 "
1299
1300 EXTERNAL_LIBRARY_LIST="
1301 $EXTERNAL_LIBRARY_GPL_LIST
1302 $EXTERNAL_LIBRARY_NONFREE_LIST
1303 $EXTERNAL_LIBRARY_VERSION3_LIST
1304 avisynth
1305 avxsynth
1306 frei0r
1307 gnutls
1308 libbs2b
1309 libdc1394
1310 libdcadec
1311 libfontconfig
1312 libfreetype
1313 libgsm
1314 libhdcd
1315 libilbc
1316 libjack
1317 libkvazaar
1318 libmp3lame
1319 libopencv
1320 libopenh264
1321 libopenjpeg
1322 libopus
1323 libpulse
1324 librtmp
1325 libschroedinger
1326 libsnappy
1327 libspeex
1328 libtheora
1329 libtwolame
1330 libvorbis
1331 libvpx
1332 libwavpack
1333 libwebp
1334 libxcb
1335 libxcb_shm
1336 libxcb_xfixes
1337 "
1338
1339 SYSTEM_LIBRARY_LIST="
1340 bzlib
1341 zlib
1342 "
1343
1344 FEATURE_LIST="
1345 gray
1346 hardcoded_tables
1347 omx_rpi
1348 runtime_cpudetect
1349 safe_bitstream_reader
1350 shared
1351 small
1352 sram
1353 static
1354 swscale_alpha
1355 "
1356
1357 LIBRARY_LIST="
1358 avcodec
1359 avdevice
1360 avfilter
1361 avformat
1362 avresample
1363 avutil
1364 swscale
1365 "
1366
1367 LICENSE_LIST="
1368 gpl
1369 nonfree
1370 version3
1371 "
1372
1373 PROGRAM_LIST="
1374 avconv
1375 avplay
1376 avprobe
1377 "
1378
1379 SUBSYSTEM_LIST="
1380 dct
1381 doc
1382 error_resilience
1383 faan
1384 fft
1385 lsp
1386 lzo
1387 mdct
1388 network
1389 rdft
1390 "
1391
1392 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1393 CONFIG_LIST="
1394 $EXAMPLE_LIST
1395 $EXTERNAL_LIBRARY_LIST
1396 $HWACCEL_LIBRARY_LIST
1397 $FEATURE_LIST
1398 $LICENSE_LIST
1399 $LIBRARY_LIST
1400 $PROGRAM_LIST
1401 $SUBSYSTEM_LIST
1402 $SYSTEM_LIBRARY_LIST
1403 neon_clobber_test
1404 pic
1405 pod2man
1406 texi2html
1407 thumb
1408 valgrind_backtrace
1409 xmm_clobber_test
1410 $COMPONENT_LIST
1411 "
1412
1413 THREADS_LIST="
1414 pthreads
1415 w32threads
1416 "
1417
1418 ATOMICS_LIST="
1419 atomics_gcc
1420 atomics_suncc
1421 atomics_win32
1422 "
1423
1424 ARCH_LIST="
1425 aarch64
1426 alpha
1427 arm
1428 avr32
1429 avr32_ap
1430 avr32_uc
1431 bfin
1432 ia64
1433 m68k
1434 mips
1435 mips64
1436 parisc
1437 ppc
1438 ppc64
1439 s390
1440 sh4
1441 sparc
1442 sparc64
1443 tilegx
1444 tilepro
1445 tomi
1446 x86
1447 x86_32
1448 x86_64
1449 "
1450
1451 ARCH_EXT_LIST_ARM="
1452 armv5te
1453 armv6
1454 armv6t2
1455 armv8
1456 neon
1457 vfp
1458 vfpv3
1459 "
1460
1461 ARCH_EXT_LIST_X86_SIMD="
1462 amd3dnow
1463 amd3dnowext
1464 avx
1465 avx2
1466 fma3
1467 fma4
1468 mmx
1469 mmxext
1470 sse
1471 sse2
1472 sse3
1473 sse4
1474 sse42
1475 ssse3
1476 xop
1477 "
1478
1479 ARCH_EXT_LIST_PPC="
1480 altivec
1481 dcbzl
1482 ldbrx
1483 power8
1484 ppc4xx
1485 vsx
1486 "
1487
1488 ARCH_EXT_LIST_X86="
1489 $ARCH_EXT_LIST_X86_SIMD
1490 cpunop
1491 i686
1492 "
1493
1494 ARCH_EXT_LIST_MIPS="
1495 loongson
1496 mips32r1
1497 mips64r1
1498 mips32r2
1499 mips64r2
1500 mips32r6
1501 mips64r6
1502 "
1503
1504 ARCH_EXT_LIST="
1505 $ARCH_EXT_LIST_ARM
1506 $ARCH_EXT_LIST_MIPS
1507 $ARCH_EXT_LIST_PPC
1508 $ARCH_EXT_LIST_X86
1509 vis
1510 "
1511
1512 ARCH_FEATURES="
1513 aligned_stack
1514 fast_64bit
1515 fast_clz
1516 fast_cmov
1517 local_aligned_8
1518 local_aligned_16
1519 local_aligned_32
1520 simd_align_16
1521 simd_align_32
1522 "
1523
1524 BUILTIN_LIST="
1525 atomic_cas_ptr
1526 machine_rw_barrier
1527 MemoryBarrier
1528 mm_empty
1529 rdtsc
1530 sem_timedwait
1531 sync_val_compare_and_swap
1532 "
1533 HAVE_LIST_CMDLINE="
1534 inline_asm
1535 symver
1536 x86asm
1537 "
1538
1539 HAVE_LIST_PUB="
1540 bigendian
1541 fast_unaligned
1542 "
1543
1544 HEADERS_LIST="
1545 AVFoundation_AVFoundation_h
1546 arpa_inet_h
1547 cdio_paranoia_h
1548 cdio_paranoia_paranoia_h
1549 dispatch_dispatch_h
1550 dev_bktr_ioctl_bt848_h
1551 dev_bktr_ioctl_meteor_h
1552 dev_ic_bt8xx_h
1553 dev_video_bktr_ioctl_bt848_h
1554 dev_video_meteor_ioctl_meteor_h
1555 direct_h
1556 dxgidebug_h
1557 dxva_h
1558 io_h
1559 machine_ioctl_bt848_h
1560 machine_ioctl_meteor_h
1561 malloc_h
1562 poll_h
1563 stdatomic_h
1564 sys_param_h
1565 sys_resource_h
1566 sys_select_h
1567 sys_soundcard_h
1568 sys_time_h
1569 sys_un_h
1570 sys_videoio_h
1571 unistd_h
1572 valgrind_valgrind_h
1573 windows_h
1574 winsock2_h
1575 "
1576
1577 INTRINSICS_LIST="
1578 intrinsics_neon
1579 "
1580
1581 MATH_FUNCS="
1582 atanf
1583 atan2f
1584 cbrtf
1585 cosf
1586 exp2
1587 exp2f
1588 expf
1589 isinf
1590 isnan
1591 ldexpf
1592 llrint
1593 llrintf
1594 log2
1595 log2f
1596 log10f
1597 lrint
1598 lrintf
1599 powf
1600 rint
1601 round
1602 roundf
1603 sinf
1604 trunc
1605 truncf
1606 "
1607
1608 SYSTEM_FUNCS="
1609 aligned_malloc
1610 clock_gettime
1611 closesocket
1612 CommandLineToArgvW
1613 CryptGenRandom
1614 fcntl
1615 getaddrinfo
1616 gethrtime
1617 getopt
1618 GetProcessAffinityMask
1619 GetProcessMemoryInfo
1620 GetProcessTimes
1621 getrusage
1622 GetSystemTimeAsFileTime
1623 gettimeofday
1624 gmtime_r
1625 inet_aton
1626 isatty
1627 localtime_r
1628 mach_absolute_time
1629 MapViewOfFile
1630 memalign
1631 mmap
1632 mprotect
1633 nanosleep
1634 posix_memalign
1635 sched_getaffinity
1636 SetConsoleTextAttribute
1637 setmode
1638 setrlimit
1639 Sleep
1640 strerror_r
1641 sysconf
1642 sysctl
1643 usleep
1644 VirtualAlloc
1645 "
1646
1647 TOOLCHAIN_FEATURES="
1648 as_arch_directive
1649 as_fpu_directive
1650 as_func
1651 as_object_arch
1652 asm_mod_q
1653 blocks_extension
1654 ebp_available
1655 ebx_available
1656 gnu_as
1657 ibm_asm
1658 inline_asm_labels
1659 pragma_deprecated
1660 symver_asm_label
1661 symver_gnu_asm
1662 vfp_args
1663 xform_asm
1664 xmm_clobbers
1665 "
1666
1667 TYPES_LIST="
1668 CONDITION_VARIABLE_Ptr
1669 CUVIDDECODECREATEINFO_bitDepthMinus8
1670 socklen_t
1671 struct_addrinfo
1672 struct_group_source_req
1673 struct_ip_mreq_source
1674 struct_ipv6_mreq
1675 struct_pollfd
1676 struct_rusage_ru_maxrss
1677 struct_sockaddr_in6
1678 struct_sockaddr_sa_len
1679 struct_sockaddr_storage
1680 struct_v4l2_frmivalenum_discrete
1681 "
1682
1683 HAVE_LIST="
1684 $ARCH_EXT_LIST
1685 $(add_suffix _external $ARCH_EXT_LIST)
1686 $(add_suffix _inline $ARCH_EXT_LIST)
1687 $ARCH_FEATURES
1688 $BUILTIN_LIST
1689 $HAVE_LIST_CMDLINE
1690 $HAVE_LIST_PUB
1691 $HEADERS_LIST
1692 $INTRINSICS_LIST
1693 $MATH_FUNCS
1694 $SYSTEM_FUNCS
1695 $THREADS_LIST
1696 $TOOLCHAIN_FEATURES
1697 $TYPES_LIST
1698 dos_paths
1699 libc_msvcrt
1700 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1701 sdl
1702 section_data_rel_ro
1703 threads
1704 uwp
1705 vaapi_drm
1706 vaapi_x11
1707 vdpau_x11
1708 "
1709
1710 # options emitted with CONFIG_ prefix but not available on the command line
1711 CONFIG_EXTRA="
1712 aandcttables
1713 ac3dsp
1714 adts_header
1715 audio_frame_queue
1716 audiodsp
1717 blockdsp
1718 bswapdsp
1719 cabac
1720 cbs
1721 cbs_h264
1722 cbs_h265
1723 cbs_mpeg2
1724 dirac_parse
1725 dvprofile
1726 faandct
1727 faanidct
1728 fdctdsp
1729 flacdsp
1730 fmtconvert
1731 g722dsp
1732 gmp
1733 golomb
1734 gplv3
1735 h263dsp
1736 h264chroma
1737 h264dsp
1738 h264parse
1739 h264pred
1740 h264qpel
1741 hevcparse
1742 hpeldsp
1743 huffman
1744 huffyuvdsp
1745 huffyuvencdsp
1746 idctdsp
1747 iirfilter
1748 imdct15
1749 intrax8
1750 iso_media
1751 ividsp
1752 jpegtables
1753 lgplv3
1754 libx262
1755 libxcb_shape
1756 lpc
1757 lzf
1758 me_cmp
1759 mpeg_er
1760 mpegaudio
1761 mpegaudiodsp
1762 mpegaudioheader
1763 mpegvideo
1764 mpegvideoenc
1765 mss34dsp
1766 pixblockdsp
1767 qpeldsp
1768 qsv
1769 qsvdec
1770 qsvenc
1771 qsvvpp
1772 rangecoder
1773 riffdec
1774 riffenc
1775 rtpdec
1776 rtpenc_chain
1777 rv34dsp
1778 sinewin
1779 snappy
1780 srtp
1781 startcode
1782 texturedsp
1783 texturedspenc
1784 tpeldsp
1785 vaapi_encode
1786 vc1dsp
1787 videodsp
1788 vp3dsp
1789 vp56dsp
1790 vp8dsp
1791 wma_freqs
1792 wmv2dsp
1793 "
1794
1795 CMDLINE_SELECT="
1796 $ARCH_EXT_LIST
1797 $CONFIG_LIST
1798 $HAVE_LIST_CMDLINE
1799 $THREADS_LIST
1800 asm
1801 cross_compile
1802 debug
1803 extra_warnings
1804 logging
1805 lto
1806 optimizations
1807 rpath
1808 "
1809
1810 PATHS_LIST="
1811 bindir
1812 datadir
1813 docdir
1814 incdir
1815 libdir
1816 mandir
1817 prefix
1818 shlibdir
1819 "
1820
1821 CMDLINE_SET="
1822 $PATHS_LIST
1823 ar
1824 arch
1825 as
1826 cc
1827 objcc
1828 cpu
1829 cross_prefix
1830 custom_allocator
1831 dep_cc
1832 env
1833 extra_version
1834 host_cc
1835 host_cflags
1836 host_extralibs
1837 host_ld
1838 host_ldflags
1839 host_os
1840 ignore_tests
1841 ld
1842 logfile
1843 malloc_prefix
1844 nm
1845 optflags
1846 pkg_config
1847 pkg_config_flags
1848 samples
1849 sysinclude
1850 sysroot
1851 target_exec
1852 target_os
1853 target_path
1854 target_samples
1855 toolchain
1856 x86asmexe
1857 "
1858
1859 CMDLINE_APPEND="
1860 extra_cflags
1861 extra_objcflags
1862 host_cppflags
1863 "
1864
1865 # code dependency declarations
1866
1867 # architecture extensions
1868
1869 armv5te_deps="arm"
1870 armv6_deps="arm"
1871 armv6t2_deps="arm"
1872 armv8_deps="aarch64"
1873 neon_deps_any="aarch64 arm"
1874 intrinsics_neon_deps="neon"
1875 vfp_deps_any="aarch64 arm"
1876 vfpv3_deps="vfp"
1877
1878 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1879
1880 altivec_deps="ppc"
1881 dcbzl_deps="ppc"
1882 ldbrx_deps="ppc"
1883 ppc4xx_deps="ppc"
1884 vsx_deps="altivec"
1885 power8_deps="vsx"
1886
1887 loongson_deps="mips"
1888 mips32r1_deps="mips32"
1889 mips32r2_deps="mips32"
1890 mips32r6_deps="mips32"
1891 mips64r1_deps="mips64"
1892 mips64r2_deps="mips64"
1893 mips64r6_deps="mips64"
1894
1895 vis_deps="sparc"
1896
1897 cpunop_deps="i686"
1898 x86_64_select="i686"
1899 x86_64_suggest="fast_cmov"
1900
1901 amd3dnow_deps="mmx"
1902 amd3dnowext_deps="amd3dnow"
1903 i686_deps="x86"
1904 mmx_deps="x86"
1905 mmxext_deps="mmx"
1906 sse_deps="mmxext"
1907 sse2_deps="sse"
1908 sse3_deps="sse2"
1909 ssse3_deps="sse3"
1910 sse4_deps="ssse3"
1911 sse42_deps="sse4"
1912 avx_deps="sse42"
1913 xop_deps="avx"
1914 fma3_deps="avx"
1915 fma4_deps="avx"
1916 avx2_deps="avx"
1917
1918 mmx_external_deps="x86asm"
1919 mmx_inline_deps="inline_asm x86"
1920 mmx_suggest="mmx_external mmx_inline"
1921
1922 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1923 eval dep=\$${ext}_deps
1924 eval ${ext}_external_deps='"${dep}_external"'
1925 eval ${ext}_inline_deps='"${dep}_inline"'
1926 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1927 done
1928
1929 aligned_stack_if_any="aarch64 ppc x86"
1930 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1931 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1932 fast_unaligned_if_any="aarch64 ppc x86"
1933 simd_align_16_if_any="altivec neon sse"
1934 simd_align_32_if_any="avx"
1935
1936 # system capabilities
1937 symver_if_any="symver_asm_label symver_gnu_asm"
1938 valgrind_backtrace_conflict="optimizations"
1939 valgrind_backtrace_deps="valgrind_valgrind_h"
1940
1941 # threading support
1942 atomics_gcc_if="sync_val_compare_and_swap"
1943 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1944 atomics_win32_if="MemoryBarrier"
1945 atomics_native_if_any="$ATOMICS_LIST"
1946 w32threads_deps="atomics_native"
1947 threads_if_any="$THREADS_LIST"
1948
1949 # subsystems
1950 cbs_h264_select="cbs golomb"
1951 cbs_h265_select="cbs golomb"
1952 cbs_mpeg2_select="cbs"
1953 dct_select="rdft"
1954 dirac_parse_select="golomb"
1955 error_resilience_select="me_cmp"
1956 faandct_deps="faan"
1957 faandct_select="fdctdsp"
1958 faanidct_deps="faan"
1959 faanidct_select="idctdsp"
1960 h264dsp_select="startcode"
1961 hevcparse_select="golomb"
1962 intrax8_select="blockdsp idctdsp"
1963 mdct_select="fft"
1964 rdft_select="fft"
1965 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1966 mpeg_er_select="error_resilience"
1967 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1968 mpegaudiodsp_select="dct"
1969 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1970 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1971 vc1dsp_select="h264chroma qpeldsp startcode"
1972
1973 # decoders / encoders
1974 aac_decoder_select="adts_header imdct15 mdct sinewin"
1975 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1976 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1977 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1978 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1979 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1980 adpcm_g722_decoder_select="g722dsp"
1981 adpcm_g722_encoder_select="g722dsp"
1982 aic_decoder_select="golomb idctdsp"
1983 alac_encoder_select="lpc"
1984 als_decoder_select="bswapdsp"
1985 amrnb_decoder_select="lsp"
1986 amrwb_decoder_select="lsp"
1987 amv_decoder_select="sp5x_decoder"
1988 ape_decoder_select="bswapdsp"
1989 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1990 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1991 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1992 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1993 atrac1_decoder_select="mdct sinewin"
1994 atrac3_decoder_select="mdct"
1995 atrac3p_decoder_select="mdct sinewin"
1996 bink_decoder_select="blockdsp hpeldsp"
1997 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1998 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1999 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2000 clearvideo_decoder_select="idctdsp"
2001 cllc_decoder_select="bswapdsp"
2002 comfortnoise_encoder_select="lpc"
2003 cook_decoder_select="audiodsp mdct sinewin"
2004 cscd_decoder_select="lzo"
2005 cscd_decoder_suggest="zlib"
2006 dca_decoder_select="fmtconvert mdct"
2007 dds_decoder_select="texturedsp"
2008 dnxhd_decoder_select="blockdsp idctdsp"
2009 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2010 dvvideo_decoder_select="dvprofile idctdsp"
2011 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2012 dxa_decoder_deps="zlib"
2013 dxv_decoder_select="lzf texturedsp"
2014 eac3_decoder_select="ac3_decoder"
2015 eac3_encoder_select="ac3_encoder"
2016 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2017 eatgq_decoder_select="aandcttables idctdsp"
2018 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2019 exr_decoder_deps="zlib"
2020 ffv1_decoder_select="rangecoder"
2021 ffv1_encoder_select="rangecoder"
2022 ffvhuff_decoder_select="huffyuv_decoder"
2023 ffvhuff_encoder_select="huffyuv_encoder"
2024 fic_decoder_select="golomb"
2025 flac_decoder_select="flacdsp"
2026 flac_encoder_select="bswapdsp flacdsp lpc"
2027 flashsv_decoder_deps="zlib"
2028 flashsv_encoder_deps="zlib"
2029 flashsv2_decoder_deps="zlib"
2030 flv_decoder_select="h263_decoder"
2031 flv_encoder_select="h263_encoder"
2032 fourxm_decoder_select="blockdsp bswapdsp"
2033 fraps_decoder_select="bswapdsp huffman"
2034 g2m_decoder_deps="zlib"
2035 g2m_decoder_select="blockdsp idctdsp jpegtables"
2036 h261_decoder_select="mpeg_er mpegvideo"
2037 h261_encoder_select="aandcttables mpegvideoenc"
2038 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2039 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2040 h263i_decoder_select="h263_decoder"
2041 h263p_encoder_select="h263_encoder"
2042 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2043 h264_decoder_suggest="error_resilience"
2044 hap_decoder_select="snappy texturedsp"
2045 hap_encoder_deps="libsnappy"
2046 hap_encoder_select="texturedspenc"
2047 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2048 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2049 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2050 iac_decoder_select="imc_decoder"
2051 imc_decoder_select="bswapdsp fft mdct sinewin"
2052 indeo3_decoder_select="hpeldsp"
2053 indeo4_decoder_select="ividsp"
2054 indeo5_decoder_select="ividsp"
2055 interplay_video_decoder_select="hpeldsp"
2056 jpegls_decoder_select="mjpeg_decoder"
2057 jv_decoder_select="blockdsp"
2058 lagarith_decoder_select="huffyuvdsp"
2059 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2060 magicyuv_decoder_select="huffyuvdsp"
2061 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2062 metasound_decoder_select="lsp mdct sinewin"
2063 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2064 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2065 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2066 mjpegb_decoder_select="mjpeg_decoder"
2067 mlp_decoder_select="mlp_parser"
2068 motionpixels_decoder_select="bswapdsp"
2069 mp1_decoder_select="mpegaudio"
2070 mp1float_decoder_select="mpegaudio"
2071 mp2_decoder_select="mpegaudio"
2072 mp2float_decoder_select="mpegaudio"
2073 mp3_decoder_select="mpegaudio"
2074 mp3adu_decoder_select="mpegaudio"
2075 mp3adufloat_decoder_select="mpegaudio"
2076 mp3float_decoder_select="mpegaudio"
2077 mp3on4_decoder_select="mpegaudio"
2078 mp3on4float_decoder_select="mpegaudio"
2079 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2080 mpc8_decoder_select="mpegaudiodsp"
2081 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2082 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2083 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2084 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2085 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2086 mpeg4_encoder_select="h263_encoder"
2087 msa1_decoder_select="mss34dsp"
2088 msmpeg4v1_decoder_select="h263_decoder"
2089 msmpeg4v2_decoder_select="h263_decoder"
2090 msmpeg4v2_encoder_select="h263_encoder"
2091 msmpeg4v3_decoder_select="h263_decoder"
2092 msmpeg4v3_encoder_select="h263_encoder"
2093 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2094 mts2_decoder_select="mss34dsp"
2095 mxpeg_decoder_select="mjpeg_decoder"
2096 nellymoser_decoder_select="mdct sinewin"
2097 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2098 nuv_decoder_select="idctdsp lzo"
2099 on2avc_decoder_select="mdct"
2100 opus_decoder_deps="avresample"
2101 opus_decoder_select="imdct15"
2102 png_decoder_deps="zlib"
2103 png_encoder_deps="zlib"
2104 png_encoder_select="huffyuvencdsp"
2105 prores_decoder_select="idctdsp"
2106 prores_encoder_select="fdctdsp"
2107 qcelp_decoder_select="lsp"
2108 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2109 ra_144_encoder_select="audio_frame_queue lpc"
2110 ralf_decoder_select="golomb"
2111 rscc_decoder_deps="zlib"
2112 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2113 rv10_encoder_select="h263_encoder"
2114 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2115 rv20_encoder_select="h263_encoder"
2116 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2117 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2118 screenpresso_decoder_deps="zlib"
2119 sipr_decoder_select="lsp"
2120 sp5x_decoder_select="mjpeg_decoder"
2121 svq1_decoder_select="hpeldsp"
2122 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2123 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2124 svq3_decoder_suggest="zlib"
2125 tak_decoder_select="audiodsp"
2126 tdsc_decoder_deps="zlib"
2127 tdsc_decoder_select="mjpeg_decoder"
2128 theora_decoder_select="vp3_decoder"
2129 thp_decoder_select="mjpeg_decoder"
2130 tiff_decoder_suggest="zlib"
2131 tiff_encoder_suggest="zlib"
2132 truehd_decoder_select="mlp_decoder"
2133 truemotion2_decoder_select="bswapdsp"
2134 truespeech_decoder_select="bswapdsp"
2135 tscc_decoder_deps="zlib"
2136 txd_decoder_select="texturedsp"
2137 twinvq_decoder_select="mdct lsp sinewin"
2138 utvideo_decoder_select="bswapdsp huffyuvdsp"
2139 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2140 vble_decoder_select="huffyuvdsp"
2141 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2142 vc1image_decoder_select="vc1_decoder"
2143 vorbis_decoder_select="mdct"
2144 vorbis_encoder_select="mdct"
2145 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2146 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2147 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2148 vp6a_decoder_select="vp6_decoder"
2149 vp6f_decoder_select="vp6_decoder"
2150 vp7_decoder_select="h264pred videodsp vp8dsp"
2151 vp8_decoder_select="h264pred videodsp vp8dsp"
2152 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2153 webp_decoder_select="vp8_decoder"
2154 wmapro_decoder_select="mdct sinewin wma_freqs"
2155 wmav1_decoder_select="mdct sinewin wma_freqs"
2156 wmav1_encoder_select="mdct sinewin wma_freqs"
2157 wmav2_decoder_select="mdct sinewin wma_freqs"
2158 wmav2_encoder_select="mdct sinewin wma_freqs"
2159 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2160 wmv1_decoder_select="h263_decoder"
2161 wmv1_encoder_select="h263_encoder"
2162 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2163 wmv2_encoder_select="h263_encoder wmv2dsp"
2164 wmv3_decoder_select="vc1_decoder"
2165 wmv3image_decoder_select="wmv3_decoder"
2166 zerocodec_decoder_deps="zlib"
2167 zlib_decoder_deps="zlib"
2168 zlib_encoder_deps="zlib"
2169 zmbv_decoder_deps="zlib"
2170 zmbv_encoder_deps="zlib"
2171
2172 # hardware accelerators
2173 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2174 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2175 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2176 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2177
2178 h263_vaapi_hwaccel_deps="vaapi"
2179 h263_vaapi_hwaccel_select="h263_decoder"
2180 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2181 h264_cuvid_hwaccel_select="h264_decoder"
2182 h264_d3d11va_hwaccel_deps="d3d11va"
2183 h264_d3d11va_hwaccel_select="h264_decoder"
2184 h264_d3d11va2_hwaccel_deps="d3d11va"
2185 h264_d3d11va2_hwaccel_select="h264_decoder"
2186 h264_dxva2_hwaccel_deps="dxva2"
2187 h264_dxva2_hwaccel_select="h264_decoder"
2188 h264_mmal_hwaccel_deps="mmal"
2189 h264_qsv_hwaccel_deps="libmfx"
2190 h264_vaapi_hwaccel_deps="vaapi"
2191 h264_vaapi_hwaccel_select="h264_decoder"
2192 h264_vda_hwaccel_deps="vda"
2193 h264_vda_hwaccel_select="h264_decoder"
2194 h264_vda_old_hwaccel_deps="vda"
2195 h264_vda_old_hwaccel_select="h264_decoder"
2196 h264_vdpau_hwaccel_deps="vdpau"
2197 h264_vdpau_hwaccel_select="h264_decoder"
2198 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2199 hevc_cuvid_hwaccel_select="hevc_decoder"
2200 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2201 hevc_d3d11va_hwaccel_select="hevc_decoder"
2202 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2203 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2204 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2205 hevc_dxva2_hwaccel_select="hevc_decoder"
2206 hevc_qsv_hwaccel_deps="libmfx"
2207 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2208 hevc_vaapi_hwaccel_select="hevc_decoder"
2209 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2210 hevc_vdpau_hwaccel_select="hevc_decoder"
2211 mpeg1_vdpau_hwaccel_deps="vdpau"
2212 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2213 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2214 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2215 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2216 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2217 mpeg2_dxva2_hwaccel_deps="dxva2"
2218 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2219 mpeg2_mmal_hwaccel_deps="mmal"
2220 mpeg2_qsv_hwaccel_deps="libmfx"
2221 mpeg2_vaapi_hwaccel_deps="vaapi"
2222 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2223 mpeg2_vdpau_hwaccel_deps="vdpau"
2224 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2225 mpeg4_vaapi_hwaccel_deps="vaapi"
2226 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2227 mpeg4_vdpau_hwaccel_deps="vdpau"
2228 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2229 vc1_d3d11va_hwaccel_deps="d3d11va"
2230 vc1_d3d11va_hwaccel_select="vc1_decoder"
2231 vc1_d3d11va2_hwaccel_deps="d3d11va"
2232 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2233 vc1_dxva2_hwaccel_deps="dxva2"
2234 vc1_dxva2_hwaccel_select="vc1_decoder"
2235 vc1_mmal_hwaccel_deps="mmal"
2236 vc1_qsv_hwaccel_deps="libmfx"
2237 vc1_vaapi_hwaccel_deps="vaapi"
2238 vc1_vaapi_hwaccel_select="vc1_decoder"
2239 vc1_vdpau_hwaccel_deps="vdpau"
2240 vc1_vdpau_hwaccel_select="vc1_decoder"
2241 vp8_qsv_hwaccel_deps="libmfx"
2242 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2243 vp8_vaapi_hwaccel_select="vp8_decoder"
2244 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2245 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2246 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2247 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2248 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2249
2250 # hardware-accelerated codecs
2251 nvenc_deps_any="libdl LoadLibrary"
2252 omx_deps="libdl pthreads"
2253 omx_rpi_select="omx"
2254 qsv_deps="libmfx"
2255 qsvdec_select="qsv"
2256 qsvenc_select="qsv"
2257 qsvvpp_select="qsv"
2258 vaapi_encode_deps="vaapi"
2259
2260 hwupload_cuda_filter_deps="cuda"
2261 scale_npp_filter_deps="cuda libnpp"
2262
2263 h264_mmal_decoder_deps="mmal"
2264 h264_nvenc_encoder_deps="nvenc"
2265 h264_omx_encoder_deps="omx"
2266 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2267 h264_qsv_encoder_select="qsvenc"
2268 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2269 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2270 hevc_nvenc_encoder_deps="nvenc"
2271 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2272 hevc_qsv_encoder_select="hevcparse qsvenc"
2273 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2274 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2275 mjpeg_qsv_encoder_deps="libmfx"
2276 mjpeg_qsv_encoder_select="qsvenc"
2277 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2278 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2279 mpeg2_mmal_decoder_deps="mmal"
2280 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2281 mpeg2_qsv_encoder_select="qsvenc"
2282 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2283 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2284 mpeg4_omx_encoder_deps="omx"
2285 vc1_mmal_decoder_deps="mmal"
2286 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2287 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2288 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2289 vp8_vaapi_encoder_select="vaapi_encode"
2290 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2291 vp9_vaapi_encoder_select="vaapi_encode"
2292
2293 nvenc_h264_encoder_select="h264_nvenc_encoder"
2294 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2295
2296 # parsers
2297 aac_parser_select="adts_header"
2298 h264_parser_select="golomb h264dsp h264parse"
2299 hevc_parser_select="hevcparse"
2300 mpegaudio_parser_select="mpegaudioheader"
2301 mpegvideo_parser_select="mpegvideo"
2302 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2303 vc1_parser_select="vc1dsp"
2304
2305 # bitstream_filters
2306 aac_adtstoasc_bsf_select="adts_header"
2307 h264_metadata_bsf_select="cbs_h264"
2308 h264_redundant_pps_bsf_select="cbs_h264"
2309 hevc_metadata_bsf_select="cbs_h265"
2310 mjpeg2jpeg_bsf_select="jpegtables"
2311 mpeg2_metadata_bsf_select="cbs_mpeg2"
2312 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2313
2314 # external libraries
2315 avisynth_deps="LoadLibrary"
2316 avxsynth_deps="libdl"
2317 avisynth_demuxer_deps_any="avisynth avxsynth"
2318 avisynth_demuxer_select="riffdec"
2319 libdcadec_decoder_deps="libdcadec"
2320 libfaac_encoder_deps="libfaac"
2321 libfaac_encoder_select="audio_frame_queue"
2322 libfdk_aac_decoder_deps="libfdk_aac"
2323 libfdk_aac_encoder_deps="libfdk_aac"
2324 libfdk_aac_encoder_select="audio_frame_queue"
2325 libgsm_decoder_deps="libgsm"
2326 libgsm_encoder_deps="libgsm"
2327 libgsm_ms_decoder_deps="libgsm"
2328 libgsm_ms_encoder_deps="libgsm"
2329 libilbc_decoder_deps="libilbc"
2330 libilbc_encoder_deps="libilbc"
2331 libkvazaar_encoder_deps="libkvazaar"
2332 libmp3lame_encoder_deps="libmp3lame"
2333 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2334 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2335 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2336 libopencore_amrnb_encoder_select="audio_frame_queue"
2337 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2338 libopenh264_decoder_deps="libopenh264"
2339 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2340 libopenh264_encoder_deps="libopenh264"
2341 libopenjpeg_decoder_deps="libopenjpeg"
2342 libopenjpeg_encoder_deps="libopenjpeg"
2343 libopus_decoder_deps="libopus"
2344 libopus_encoder_deps="libopus"
2345 libopus_encoder_select="audio_frame_queue"
2346 libschroedinger_decoder_deps="libschroedinger"
2347 libschroedinger_encoder_deps="libschroedinger"
2348 libspeex_decoder_deps="libspeex"
2349 libspeex_encoder_deps="libspeex"
2350 libspeex_encoder_select="audio_frame_queue"
2351 libtheora_encoder_deps="libtheora"
2352 libtwolame_encoder_deps="libtwolame"
2353 libvo_aacenc_encoder_deps="libvo_aacenc"
2354 libvo_aacenc_encoder_select="audio_frame_queue"
2355 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2356 libvorbis_encoder_deps="libvorbis"
2357 libvorbis_encoder_select="audio_frame_queue"
2358 libvpx_vp8_decoder_deps="libvpx"
2359 libvpx_vp8_encoder_deps="libvpx"
2360 libvpx_vp9_decoder_deps="libvpx"
2361 libvpx_vp9_encoder_deps="libvpx"
2362 libwavpack_encoder_deps="libwavpack"
2363 libwavpack_encoder_select="audio_frame_queue"
2364 libwebp_encoder_deps="libwebp"
2365 libx262_encoder_deps="libx262"
2366 libx264_encoder_deps="libx264"
2367 libx265_encoder_deps="libx265"
2368 libxavs_encoder_deps="libxavs"
2369 libxvid_encoder_deps="libxvid mkstemp"
2370
2371 # demuxers / muxers
2372 ac3_demuxer_select="ac3_parser"
2373 asf_demuxer_select="riffdec"
2374 asf_muxer_select="riffenc"
2375 asf_stream_muxer_select="asf_muxer"
2376 avi_demuxer_select="iso_media riffdec"
2377 avi_muxer_select="riffenc"
2378 caf_demuxer_select="iso_media riffdec"
2379 dash_muxer_select="mp4_muxer"
2380 dirac_demuxer_select="dirac_parser"
2381 dv_demuxer_select="dvprofile"
2382 dv_muxer_select="dvprofile"
2383 dxa_demuxer_select="riffdec"
2384 eac3_demuxer_select="ac3_parser"
2385 f4v_muxer_select="mov_muxer"
2386 flac_demuxer_select="flac_parser"
2387 hds_muxer_select="flv_muxer"
2388 hls_muxer_select="mpegts_muxer"
2389 ipod_muxer_select="mov_muxer"
2390 ismv_muxer_select="mov_muxer"
2391 matroska_audio_muxer_select="matroska_muxer"
2392 matroska_demuxer_select="iso_media riffdec"
2393 matroska_demuxer_suggest="bzlib lzo zlib"
2394 matroska_muxer_select="iso_media riffenc"
2395 mmf_muxer_select="riffenc"
2396 mov_demuxer_select="iso_media riffdec"
2397 mov_demuxer_suggest="zlib"
2398 mov_muxer_select="iso_media riffenc rtpenc_chain"
2399 mp3_demuxer_select="mpegaudio_parser"
2400 mp3_muxer_select="mpegaudioheader"
2401 mp4_muxer_select="mov_muxer"
2402 mpegts_demuxer_select="iso_media"
2403 mpegts_muxer_select="adts_muxer latm_muxer"
2404 mpegtsraw_demuxer_select="mpegts_demuxer"
2405 mxf_d10_muxer_select="mxf_muxer"
2406 nut_muxer_select="riffenc"
2407 nuv_demuxer_select="riffdec"
2408 oga_muxer_select="ogg_muxer"
2409 ogg_demuxer_select="dirac_parse"
2410 opus_muxer_select="ogg_muxer"
2411 psp_muxer_select="mov_muxer"
2412 rtp_demuxer_select="sdp_demuxer"
2413 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2414 rtsp_demuxer_select="http_protocol rtpdec"
2415 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2416 sap_demuxer_select="sdp_demuxer"
2417 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2418 sdp_demuxer_select="rtpdec"
2419 smoothstreaming_muxer_select="ismv_muxer"
2420 spdif_demuxer_select="adts_header"
2421 spdif_muxer_select="adts_header"
2422 spx_muxer_select="ogg_muxer"
2423 swf_demuxer_suggest="zlib"
2424 tak_demuxer_select="tak_parser"
2425 tg2_muxer_select="mov_muxer"
2426 tgp_muxer_select="mov_muxer"
2427 w64_demuxer_select="wav_demuxer"
2428 wav_demuxer_select="riffdec"
2429 wav_muxer_select="riffenc"
2430 webm_muxer_select="iso_media riffenc"
2431 wtv_demuxer_select="mpegts_demuxer riffdec"
2432 xmv_demuxer_select="riffdec"
2433 xwma_demuxer_select="riffdec"
2434
2435 # indevs / outdevs
2436 alsa_indev_deps="alsa"
2437 alsa_outdev_deps="alsa"
2438 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2439 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2440 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2441 dv1394_indev_deps="dv1394"
2442 dv1394_indev_select="dv_demuxer"
2443 fbdev_indev_deps="linux_fb_h"
2444 jack_indev_deps="libjack"
2445 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2446 libcdio_indev_deps="libcdio"
2447 libdc1394_indev_deps="libdc1394"
2448 oss_indev_deps_any="sys_soundcard_h"
2449 oss_outdev_deps_any="sys_soundcard_h"
2450 pulse_indev_deps="libpulse"
2451 sndio_indev_deps="sndio"
2452 sndio_outdev_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 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2718 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2719 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2720
2721 find_things_extern(){
2722 thing=$1
2723 pattern=$2
2724 file=$source_path/$3
2725 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2726 }
2727
2728 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2729 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2730
2731 AVCODEC_COMPONENTS_LIST="
2732 $BSF_LIST
2733 $DECODER_LIST
2734 $ENCODER_LIST
2735 $HWACCEL_LIST
2736 $PARSER_LIST
2737 "
2738
2739 AVDEVICE_COMPONENTS_LIST="
2740 $INDEV_LIST
2741 $OUTDEV_LIST
2742 "
2743
2744 AVFILTER_COMPONENTS_LIST="
2745 $FILTER_LIST
2746 "
2747
2748 AVFORMAT_COMPONENTS_LIST="
2749 $DEMUXER_LIST
2750 $MUXER_LIST
2751 $PROTOCOL_LIST
2752 "
2753
2754 ALL_COMPONENTS="
2755 $AVCODEC_COMPONENTS_LIST
2756 $AVDEVICE_COMPONENTS_LIST
2757 $AVFILTER_COMPONENTS_LIST
2758 $AVFORMAT_COMPONENTS_LIST
2759 "
2760
2761 for n in $COMPONENT_LIST; do
2762 v=$(toupper ${n%s})_LIST
2763 eval enable \$$v
2764 eval ${n}_if_any="\$$v"
2765 done
2766
2767 enable $ARCH_EXT_LIST
2768
2769 die_unknown(){
2770 echo "Unknown option \"$1\"."
2771 echo "See $0 --help for available options."
2772 exit 1
2773 }
2774
2775 print_3_columns() {
2776 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2777 }
2778
2779 show_list() {
2780 suffix=_$1
2781 shift
2782 echo $* | sed s/$suffix//g | print_3_columns
2783 exit 0
2784 }
2785
2786 for opt do
2787 optval="${opt#*=}"
2788 case "$opt" in
2789 --extra-ldflags=*)
2790 add_ldflags $optval
2791 ;;
2792 --extra-ldexeflags=*)
2793 add_ldexeflags $optval
2794 ;;
2795 --extra-ldsoflags=*)
2796 add_ldsoflags $optval
2797 ;;
2798 --extra-libs=*)
2799 add_extralibs $optval
2800 ;;
2801 --disable-devices)
2802 disable $INDEV_LIST $OUTDEV_LIST
2803 ;;
2804 --enable-debug=*)
2805 debuglevel="$optval"
2806 ;;
2807 --disable-programs)
2808 disable $PROGRAM_LIST
2809 ;;
2810 --disable-everything)
2811 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2812 ;;
2813 --disable-all)
2814 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2815 disable $LIBRARY_LIST $PROGRAM_LIST doc
2816 ;;
2817 --enable-*=*|--disable-*=*)
2818 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2819 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2820 eval list=\$$(toupper $thing)_LIST
2821 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2822 $action $(filter "$name" $list)
2823 ;;
2824 --enable-yasm|--disable-yasm)
2825 warn "The ${opt} option is only provided for compatibility and will be\n"\
2826 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2827 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2828 ;;
2829 --enable-?*|--disable-?*)
2830 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2831 if is_in $option $COMPONENT_LIST; then
2832 test $action = disable && action=unset
2833 eval $action \$$(toupper ${option%s})_LIST
2834 elif is_in $option $CMDLINE_SELECT; then
2835 $action $option
2836 else
2837 die_unknown $opt
2838 fi
2839 ;;
2840 --list-*)
2841 NAME="${opt#--list-}"
2842 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2843 NAME=${NAME%s}
2844 eval show_list $NAME \$$(toupper $NAME)_LIST
2845 ;;
2846 --help|-h) show_help
2847 ;;
2848 --quiet|-q) quiet=yes
2849 ;;
2850 *)
2851 optname="${opt%%=*}"
2852 optname="${optname#--}"
2853 optname=$(echo "$optname" | sed 's/-/_/g')
2854 if is_in $optname $CMDLINE_SET; then
2855 eval $optname='$optval'
2856 elif is_in $optname $CMDLINE_APPEND; then
2857 append $optname "$optval"
2858 else
2859 die_unknown $opt
2860 fi
2861 ;;
2862 esac
2863 done
2864
2865 for e in $env; do
2866 eval "export $e"
2867 done
2868
2869 disabled logging && logfile=/dev/null
2870
2871 # Die early if licensing-related configure options are incompatible.
2872 die_license_disabled() {
2873 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2874 }
2875
2876 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2877 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2878 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2879
2880 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2881
2882 enabled_all gnutls openssl &&
2883 die "GnuTLS and OpenSSL must not be enabled at the same time."
2884
2885 # Disable all the library-specific components if the library itself
2886 # is disabled, see AVCODEC_LIST and following _LIST variables.
2887
2888 disable_components(){
2889 disabled ${1} && disable $(
2890 eval components="\$$(toupper ${1})_COMPONENTS"
2891 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2892 )
2893 }
2894
2895 map 'disable_components $v' $LIBRARY_LIST
2896
2897 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2898 set >> $logfile
2899
2900 case "$toolchain" in
2901 *-asan)
2902 cc_default="${toolchain%-asan}"
2903 add_cflags -fsanitize=address
2904 add_ldflags -fsanitize=address
2905 ;;
2906 *-msan)
2907 cc_default="${toolchain%-msan}"
2908 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2909 add_ldflags -fsanitize=memory
2910 ;;
2911 *-tsan)
2912 cc_default="${toolchain%-tsan}"
2913 add_cflags -fsanitize=thread -fPIE
2914 add_ldflags -fsanitize=thread -pie
2915 case "$toolchain" in
2916 gcc-tsan)
2917 add_cflags -fPIC
2918 add_ldflags -fPIC
2919 ;;
2920 esac
2921 ;;
2922 *-usan)
2923 cc_default="${toolchain%-usan}"
2924 add_cflags -fsanitize=undefined
2925 add_ldflags -fsanitize=undefined
2926 case "$toolchain" in
2927 clang-usan)
2928 add_cflags -O1
2929 ;;
2930 esac
2931 ;;
2932 valgrind-*)
2933 target_exec_default="valgrind"
2934 case "$toolchain" in
2935 valgrind-massif)
2936 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2937 ;;
2938 valgrind-memcheck)
2939 target_exec_args="--track-origins=yes --leak-check=full"
2940 ;;
2941 esac
2942 ;;
2943 msvc)
2944 # Check whether the current MSVC version needs the C99 converter.
2945 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2946 # support enough of C99 to build libav. Default to the new
2947 # behaviour if the regexp was unable to match anything, since this
2948 # successfully parses the version number of existing supported
2949 # versions that require the converter (MSVC 2010 and 2012).
2950 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2951 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2952 cc_default="cl"
2953 else
2954 cc_default="c99wrap cl"
2955 fi
2956 ld_default="$source_path/compat/windows/mslink"
2957 nm_default="dumpbin -symbols"
2958 ar_default="lib"
2959 case "$arch" in
2960 arm*)
2961 as_default="armasm"
2962 ;;
2963 esac
2964 target_os_default="win32"
2965 # Use a relative path for TMPDIR. This makes sure all the
2966 # ffconf temp files are written with a relative path, avoiding
2967 # issues with msys/win32 path conversion for MSVC parameters
2968 # such as -Fo<file> or -out:<file>.
2969 TMPDIR=.
2970 ;;
2971 icl)
2972 cc_default="icl"
2973 ld_default="xilink"
2974 nm_default="dumpbin -symbols"
2975 ar_default="xilib"
2976 target_os_default="win32"
2977 TMPDIR=.
2978 ;;
2979 gcov)
2980 add_cflags -fprofile-arcs -ftest-coverage
2981 add_ldflags -fprofile-arcs -ftest-coverage
2982 ;;
2983 llvm-cov)
2984 add_cflags -fprofile-arcs -ftest-coverage
2985 add_ldflags --coverage
2986 ;;
2987 hardened)
2988 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2989 add_cflags -fno-strict-overflow -fstack-protector-all
2990 add_ldflags -Wl,-z,relro -Wl,-z,now
2991 ;;
2992 ?*)
2993 die "Unknown toolchain $toolchain"
2994 ;;
2995 esac
2996
2997 test -n "$cross_prefix" && enable cross_compile
2998
2999 if enabled cross_compile; then
3000 test -n "$arch" && test -n "$target_os" ||
3001 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3002 fi
3003
3004 ar_default="${cross_prefix}${ar_default}"
3005 cc_default="${cross_prefix}${cc_default}"
3006 objcc_default="${cross_prefix}${objcc_default}"
3007 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3008 nm_default="${cross_prefix}${nm_default}"
3009 pkg_config_default="${cross_prefix}${pkg_config_default}"
3010 ranlib="${cross_prefix}${ranlib}"
3011 strip="${cross_prefix}${strip}"
3012
3013 sysinclude_default="${sysroot}/usr/include"
3014
3015 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3016 enabled cross_compile || host_cc_default=$cc
3017 set_default host_cc
3018
3019 if ! $pkg_config --version >/dev/null 2>&1; then
3020 warn "$pkg_config not found, library detection may fail."
3021 pkg_config=false
3022 fi
3023
3024 exesuf() {
3025 case $1 in
3026 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3027 esac
3028 }
3029
3030 EXESUF=$(exesuf $target_os)
3031 HOSTEXESUF=$(exesuf $host_os)
3032
3033 # set temporary file name
3034 : ${TMPDIR:=$TEMPDIR}
3035 : ${TMPDIR:=$TMP}
3036 : ${TMPDIR:=/tmp}
3037
3038 if ! check_cmd mktemp -u XXXXXX; then
3039 # simple replacement for missing mktemp
3040 # NOT SAFE FOR GENERAL USE
3041 mktemp(){
3042 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3043 echo "$tmpname"
3044 mkdir "$tmpname"
3045 }
3046 fi
3047
3048 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3049 die "Unable to create temporary directory in $TMPDIR."
3050
3051 tmpfile(){
3052 tmp="${AVTMPDIR}/test"$2
3053 (set -C; exec > $tmp) 2> /dev/null ||
3054 die "Unable to create temporary file in $AVTMPDIR."
3055 eval $1=$tmp
3056 }
3057
3058 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3059 trap 'exit 2' INT
3060
3061 tmpfile TMPASM .asm
3062 tmpfile TMPC .c
3063 tmpfile TMPE $EXESUF
3064 tmpfile TMPH .h
3065 tmpfile TMPO .o
3066 tmpfile TMPS .S
3067 tmpfile TMPSH .sh
3068 tmpfile TMPV .ver
3069
3070 unset -f mktemp
3071
3072 chmod +x $TMPE
3073
3074 # make sure we can execute files in $TMPDIR
3075 cat > $TMPSH 2>> $logfile <<EOF
3076 #! /bin/sh
3077 EOF
3078 chmod +x $TMPSH >> $logfile 2>&1
3079 if ! $TMPSH >> $logfile 2>&1; then
3080 cat <<EOF
3081 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3082 variable to another directory and make sure that it is not mounted noexec.
3083 EOF
3084 die "Sanity test failed."
3085 fi
3086
3087 armasm_flags(){
3088 for flag; do
3089 case $flag in
3090 # Filter out MSVC cl.exe options from cflags that shouldn't
3091 # be passed to gas-preprocessor
3092 -M[TD]*) ;;
3093 *) echo $flag ;;
3094 esac
3095 done
3096 }
3097
3098 cparser_flags(){
3099 for flag; do
3100 case $flag in
3101 -Wno-switch) echo -Wno-switch-enum ;;
3102 -Wno-format-zero-length) ;;
3103 -Wdisabled-optimization) ;;
3104 -Wno-pointer-sign) echo -Wno-other ;;
3105 *) echo $flag ;;
3106 esac
3107 done
3108 }
3109
3110 msvc_common_flags(){
3111 for flag; do
3112 case $flag in
3113 # In addition to specifying certain flags under the compiler
3114 # specific filters, they must be specified here as well or else the
3115 # generic catch all at the bottom will print the original flag.
3116 -Wall) ;;
3117 -Wextra) ;;
3118 -std=c99) ;;
3119 # Common flags
3120 -fomit-frame-pointer) ;;
3121 -g) echo -Z7 ;;
3122 -fno-math-errno) ;;
3123 -fno-common) ;;
3124 -fno-signed-zeros) ;;
3125 -fPIC) ;;
3126 -mthumb) ;;
3127 -march=*) ;;
3128 -lz) echo zlib.lib ;;
3129 -lx264) echo libx264.lib ;;
3130 -l*) echo ${flag#-l}.lib ;;
3131 -L*) echo -libpath:${flag#-L} ;;
3132 *) echo $flag ;;
3133 esac
3134 done
3135 }
3136
3137 msvc_flags(){
3138 msvc_common_flags "$@"
3139 for flag; do
3140 case $flag in
3141 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3142 -wd4554 ;;
3143 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3144 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3145 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3146 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3147 esac
3148 done
3149 }
3150
3151 icl_flags(){
3152 msvc_common_flags "$@"
3153 for flag; do
3154 case $flag in
3155 # Despite what Intel's documentation says -Wall, which is supported
3156 # on Windows, does enable remarks so disable them here.
3157 -Wall) echo $flag -Qdiag-disable:remark ;;
3158 -std=c99) echo -Qstd=c99 ;;
3159 esac
3160 done
3161 }
3162
3163 pgi_flags(){
3164 for flag; do
3165 case $flag in
3166 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3167 -fomit-frame-pointer) echo -Mnoframe ;;
3168 -g) echo -gopt ;;
3169 *) echo $flag ;;
3170 esac
3171 done
3172 }
3173
3174 suncc_flags(){
3175 for flag; do
3176 case $flag in
3177 -march=*|-mcpu=*)
3178 case "${flag#*=}" in
3179 native) echo -xtarget=native ;;
3180 v9|niagara) echo -xarch=sparc ;;
3181 ultrasparc) echo -xarch=sparcvis ;;
3182 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3183 i586|pentium) echo -xchip=pentium ;;
3184 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3185 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3186 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3187 pentium4*) echo -xtarget=pentium4 ;;
3188 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3189 *-sse3) echo -xarch=sse3 ;;
3190 core2) echo -xarch=ssse3 -xchip=core2 ;;
3191 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3192 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3193 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3194 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3195 k8|opteron|athlon64|athlon-fx)
3196 echo -xarch=sse2a ;;
3197 athlon*) echo -xarch=pentium_proa ;;
3198 esac
3199 ;;
3200 -std=c99) echo -xc99 ;;
3201 -fomit-frame-pointer) echo -xregs=frameptr ;;
3202 -fPIC) echo -KPIC -xcode=pic32 ;;
3203 -W*,*) echo $flag ;;
3204 -f*-*|-W*|-mimpure-text) ;;
3205 -shared) echo -G ;;
3206 *) echo $flag ;;
3207 esac
3208 done
3209 }
3210
3211 tms470_flags(){
3212 for flag; do
3213 case $flag in
3214 -march=*|-mcpu=*)
3215 case "${flag#*=}" in
3216 armv7-a|cortex-a*) echo -mv=7a8 ;;
3217 armv7-r|cortex-r*) echo -mv=7r4 ;;
3218 armv7-m|cortex-m*) echo -mv=7m3 ;;
3219 armv6*|arm11*) echo -mv=6 ;;
3220 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3221 echo -mv=5e ;;
3222 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3223 esac
3224 ;;
3225 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3226 -mfpu=vfp) echo --float_support=vfpv2 ;;
3227 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3228 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3229 -msoft-float) echo --float_support=vfplib ;;
3230 -O[0-3]|-mf=*) echo $flag ;;
3231 -g) echo -g -mn ;;
3232 -pds=*) echo $flag ;;
3233 -D*|-I*) echo $flag ;;
3234 --gcc|--abi=*) echo $flag ;;
3235 -me) echo $flag ;;
3236 esac
3237 done
3238 }
3239
3240 probe_cc(){
3241 pfx=$1
3242 _cc=$2
3243
3244 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3245 unset _ld_o _ldflags _ld_lib _ld_path
3246 unset _depflags _DEPCMD _DEPFLAGS
3247 _flags_filter=echo
3248
3249 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3250 _type=llvm_gcc
3251 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3252 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3253 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3254 _cflags_speed='-O3'
3255 _cflags_size='-Os'
3256 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3257 _type=gcc
3258 gcc_version=$($_cc --version | head -n1)
3259 gcc_basever=$($_cc -dumpversion)
3260 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3261 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3262 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3263 if ! $_cc -dumpversion | grep -q '^2\.'; then
3264 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3265 fi
3266 _cflags_speed='-O3'
3267 _cflags_size='-Os'
3268 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3269 _type=icc
3270 _ident=$($_cc --version | head -n1)
3271 _depflags='-MMD'
3272 _cflags_speed='-O3'
3273 _cflags_size='-Os'
3274 _cflags_noopt='-O1'
3275 elif $_cc -v 2>&1 | grep -q xlc; then
3276 _type=xlc
3277 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3278 _cflags_speed='-O5'
3279 _cflags_size='-O5 -qcompact'
3280 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3281 test -d "$sysroot" || die "No valid sysroot specified."
3282 _type=armcc
3283 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3284 armcc_conf="$PWD/armcc.conf"
3285 $_cc --arm_linux_configure \
3286 --arm_linux_config_file="$armcc_conf" \
3287 --configure_sysroot="$sysroot" \
3288 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3289 die "Error creating armcc configuration file."
3290 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3291 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3292 as_default="${cross_prefix}gcc"
3293 _depflags='-MMD'
3294 _cflags_speed='-O3'
3295 _cflags_size='-Os'
3296 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3297 _type=tms470
3298 _ident=$($_cc -version | head -n1 | tr -s ' ')
3299 _flags='--gcc --abi=eabi -me'
3300 _cc_e='-ppl -fe=$@'
3301 _cc_o='-fe=$@'
3302 _depflags='-ppa -ppd=$(@:.o=.d)'
3303 _cflags_speed='-O3 -mf=5'
3304 _cflags_size='-O3 -mf=2'
3305 _flags_filter=tms470_flags
3306 elif $_cc -v 2>&1 | grep -q clang; then
3307 _type=clang
3308 _ident=$($_cc --version 2>/dev/null | head -n1)
3309 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3310 _cflags_speed='-O3'
3311 _cflags_size='-Os'
3312 elif $_cc -V 2>&1 | grep -q Sun; then
3313 _type=suncc
3314 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3315 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3316 _DEPFLAGS='-xM1 -xc99'
3317 _ldflags='-std=c99'
3318 _cflags_speed='-O5'
3319 _cflags_size='-O5 -xspace'
3320 _flags_filter=suncc_flags
3321 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3322 _type=pathscale
3323 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3324 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3325 _cflags_speed='-O2'
3326 _cflags_size='-Os'
3327 _flags_filter='filter_out -Wdisabled-optimization'
3328 elif $_cc -v 2>&1 | grep -q Open64; then
3329 _type=open64
3330 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3331 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3332 _cflags_speed='-O2'
3333 _cflags_size='-Os'
3334 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3335 elif $_cc -V 2>&1 | grep -q Portland; then
3336 _type=pgi
3337 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3338 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3339 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3340 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3341 _cflags_noopt="-O1"
3342 _flags_filter=pgi_flags
3343 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3344 _type=armasm
3345 _ident=$($_cc | head -n1)
3346 # 4509: "This form of conditional instruction is deprecated"
3347 _flags="-nologo -ignore 4509"
3348 _flags_filter=armasm_flags
3349 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3350 _type=msvc
3351 _ident=$($_cc 2>&1 | head -n1)
3352 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3353 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3354 _cflags_speed="-O2"
3355 _cflags_size="-O1"
3356 _cflags_noopt="-O1"
3357 if $_cc -nologo- 2>&1 | grep -q Linker; then
3358 _ld_o='-out:$@'
3359 else
3360 _ld_o='-Fe$@'
3361 fi
3362 _cc_o='-Fo$@'
3363 _cc_e='-P -Fi$@'
3364 _flags_filter=msvc_flags
3365 _ld_lib='lib%.a'
3366 _ld_path='-libpath:'
3367 _flags='-nologo'
3368 elif $_cc 2>&1 | grep -q Intel; then
3369 _type=icl
3370 _ident=$($_cc 2>&1 | head -n1)
3371 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3372 # Not only is O3 broken on 13.x+ but it is slower on all previous
3373 # versions (tested) as well.
3374 _cflags_speed="-O2"
3375 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3376 if $_cc 2>&1 | grep -q Linker; then
3377 _ld_o='-out:$@'
3378 else
3379 _ld_o='-Fe$@'
3380 fi
3381 _cc_o='-Fo$@'
3382 _cc_e='-P'
3383 _flags_filter=icl_flags
3384 _ld_lib='lib%.a'
3385 _ld_path='-libpath:'
3386 # -Qdiag-error to make icl error when seeing certain unknown arguments
3387 _flags='-nologo -Qdiag-error:4044,10157'
3388 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3389 # with MSVC which enables it by default.
3390 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3391 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3392 # lld can emulate multiple different linkers; in ms link.exe mode,
3393 # the -? parameter gives the help output which contains an identifyable
3394 # string, while it gives an error in other modes.
3395 _type=lld-link
3396 # The link.exe mode doesn't have a switch for getting the version,
3397 # but we can force it back to gnu mode and get the version from there.
3398 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3399 _ld_o='-out:$@'
3400 _flags_filter=msvc_flags
3401 _ld_lib='lib%.a'
3402 _ld_path='-libpath:'
3403 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3404 _type=cparser
3405 _ident=$($_cc --version | head -n1)
3406 _depflags='-MMD'
3407 _cflags_speed='-O4'
3408 _cflags_size='-O2'
3409 _flags_filter=cparser_flags
3410 fi
3411
3412 eval ${pfx}_type=\$_type
3413 eval ${pfx}_ident=\$_ident
3414 }
3415
3416 set_ccvars(){
3417 eval ${1}_C=\${_cc_c-\${${1}_C}}
3418 eval ${1}_E=\${_cc_e-\${${1}_E}}
3419 eval ${1}_O=\${_cc_o-\${${1}_O}}
3420
3421 if [ -n "$_depflags" ]; then
3422 eval ${1}_DEPFLAGS=\$_depflags
3423 else
3424 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3425 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3426 eval DEP${1}FLAGS=\$_flags
3427 fi
3428 }
3429
3430 probe_cc cc "$cc"
3431 cflags_filter=$_flags_filter
3432 cflags_speed=$_cflags_speed
3433 cflags_size=$_cflags_size
3434 cflags_noopt=$_cflags_noopt
3435 add_cflags $_flags $_cflags
3436 cc_ldflags=$_ldflags
3437 set_ccvars CC
3438
3439 probe_cc hostcc "$host_cc"
3440 host_cflags_filter=$_flags_filter
3441 host_cflags_speed=$_cflags_speed
3442 add_host_cflags $_flags $_cflags
3443 set_ccvars HOSTCC
3444
3445 test -n "$cc_type" && enable $cc_type ||
3446 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3447
3448 : ${as_default:=$cc}
3449 : ${objcc_default:=$cc}
3450 : ${dep_cc_default:=$cc}
3451 : ${ld_default:=$cc}
3452 : ${host_ld_default:=$host_cc}
3453 set_default ar as objcc dep_cc ld host_ld
3454
3455 probe_cc as "$as"
3456 asflags_filter=$_flags_filter
3457 add_asflags $_flags $_cflags
3458 set_ccvars AS
3459
3460 probe_cc objcc "$objcc"
3461 objcflags_filter=$_flags_filter
3462 add_objcflags $_flags $_cflags
3463 set_ccvars OBJC
3464
3465 probe_cc ld "$ld"
3466 ldflags_filter=$_flags_filter
3467 add_ldflags $_flags $_ldflags
3468 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3469 LD_O=${_ld_o-$LD_O}
3470 LD_LIB=${_ld_lib-$LD_LIB}
3471 LD_PATH=${_ld_path-$LD_PATH}
3472
3473 probe_cc hostld "$host_ld"
3474 host_ldflags_filter=$_flags_filter
3475 add_host_ldflags $_flags $_ldflags
3476 HOSTLD_O=${_ld_o-$HOSTLD_O}
3477
3478 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3479 probe_cc depcc "$dep_cc"
3480 CCDEP=${_DEPCMD:-$DEPCMD}
3481 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3482 DEPCCFLAGS=$_flags
3483 fi
3484
3485 if $ar 2>&1 | grep -q Microsoft; then
3486 arflags="-nologo"
3487 ar_o='-out:$@'
3488 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3489 arflags="rq"
3490 ar_o='$@'
3491 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3492 arflags='-Xany -r -c'
3493 ar_o='$@'
3494 else
3495 arflags="rc"
3496 ar_o='$@'
3497 fi
3498
3499 add_cflags $extra_cflags
3500 add_objcflags $extra_objcflags
3501 add_asflags $extra_cflags
3502
3503 if test -n "$sysroot"; then
3504 case "$cc_type" in
3505 gcc|llvm_gcc|clang)
3506 add_cppflags --sysroot="$sysroot"
3507 add_ldflags --sysroot="$sysroot"
3508 ;;
3509 tms470)
3510 add_cppflags -I"$sysinclude"
3511 add_ldflags --sysroot="$sysroot"
3512 ;;
3513 esac
3514 fi
3515
3516 if test "$cpu" = host; then
3517 enabled cross_compile &&
3518 die "--cpu=host makes no sense when cross-compiling."
3519
3520 case "$cc_type" in
3521 gcc|llvm_gcc)
3522 check_native(){
3523 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3524 sed -n "/cc1.*$1=/{
3525 s/.*$1=\\([^ ]*\\).*/\\1/
3526 p
3527 q
3528 }" $TMPE
3529 }
3530 cpu=$(check_native -march || check_native -mcpu)
3531 ;;
3532 esac
3533
3534 test "${cpu:-host}" = host &&
3535 die "--cpu=host not supported with compiler $cc"
3536 fi
3537
3538 # Deal with common $arch aliases
3539 case "$arch" in
3540 aarch64|arm64)
3541 arch="aarch64"
3542 ;;
3543 arm*)
3544 arch="arm"
3545 ;;
3546 mips*|IP*)
3547 case "$arch" in
3548 *el)
3549 add_cppflags -EL
3550 add_ldflags -EL
3551 ;;
3552 *eb)
3553 add_cppflags -EB
3554 add_ldflags -EB
3555 ;;
3556 esac
3557 arch="mips"
3558 ;;
3559 parisc*|hppa*)
3560 arch="parisc"
3561 ;;
3562 "Power Macintosh"|ppc*|powerpc*)
3563 arch="ppc"
3564 ;;
3565 s390|s390x)
3566 arch="s390"
3567 ;;
3568 sh4|sh)
3569 arch="sh4"
3570 ;;
3571 sun4u|sparc*)
3572 arch="sparc"
3573 ;;
3574 tilegx|tile-gx)
3575 arch="tilegx"
3576 ;;
3577 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3578 arch="x86"
3579 ;;
3580 esac
3581
3582 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3583 enable $arch
3584
3585 # Add processor-specific flags
3586 if enabled aarch64; then
3587
3588 case $cpu in
3589 armv*)
3590 cpuflags="-march=$cpu"
3591 ;;
3592 *)
3593 cpuflags="-mcpu=$cpu"
3594 ;;
3595 esac
3596
3597 elif enabled alpha; then
3598
3599 cpuflags="-mcpu=$cpu"
3600
3601 elif enabled arm; then
3602
3603 check_arm_arch() {
3604 check_cpp_condition stddef.h \
3605 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3606 $cpuflags
3607 }
3608
3609 probe_arm_arch() {
3610 if check_arm_arch 4; then echo armv4
3611 elif check_arm_arch 4T; then echo armv4t
3612 elif check_arm_arch 5; then echo armv5
3613 elif check_arm_arch 5E; then echo armv5e
3614 elif check_arm_arch 5T; then echo armv5t
3615 elif check_arm_arch 5TE; then echo armv5te
3616 elif check_arm_arch 5TEJ; then echo armv5te
3617 elif check_arm_arch 6; then echo armv6
3618 elif check_arm_arch 6J; then echo armv6j
3619 elif check_arm_arch 6K; then echo armv6k
3620 elif check_arm_arch 6Z; then echo armv6z
3621 elif check_arm_arch 6ZK; then echo armv6zk
3622 elif check_arm_arch 6T2; then echo armv6t2
3623 elif check_arm_arch 7; then echo armv7
3624 elif check_arm_arch 7A 7_A; then echo armv7-a
3625 elif check_arm_arch 7S; then echo armv7-a
3626 elif check_arm_arch 7R 7_R; then echo armv7-r
3627 elif check_arm_arch 7M 7_M; then echo armv7-m
3628 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3629 elif check_arm_arch 8A 8_A; then echo armv8-a
3630 fi
3631 }
3632
3633 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3634
3635 case $cpu in
3636 armv*)
3637 cpuflags="-march=$cpu"
3638 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3639 ;;
3640 *)
3641 cpuflags="-mcpu=$cpu"
3642 case $cpu in
3643 cortex-a*) subarch=armv7a ;;
3644 cortex-r*) subarch=armv7r ;;
3645 cortex-m*) enable thumb; subarch=armv7m ;;
3646 arm11*) subarch=armv6 ;;
3647 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3648 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3649 *) subarch=$(probe_arm_arch) ;;
3650 esac
3651 ;;
3652 esac
3653
3654 case "$subarch" in
3655 armv5t*) enable fast_clz ;;
3656 armv[6-8]*) enable fast_clz fast_unaligned ;;
3657 esac
3658
3659 elif enabled avr32; then
3660
3661 case $cpu in
3662 ap7[02]0[0-2])
3663 subarch="avr32_ap"
3664 cpuflags="-mpart=$cpu"
3665 ;;
3666 ap)
3667 subarch="avr32_ap"
3668 cpuflags="-march=$cpu"
3669 ;;
3670 uc3[ab]*)
3671 subarch="avr32_uc"
3672 cpuflags="-mcpu=$cpu"
3673 ;;
3674 uc)
3675 subarch="avr32_uc"
3676 cpuflags="-march=$cpu"
3677 ;;
3678 esac
3679
3680 elif enabled bfin; then
3681
3682 cpuflags="-mcpu=$cpu"
3683
3684 elif enabled mips; then
3685
3686 cpuflags="-march=$cpu"
3687
3688 elif enabled ppc; then
3689
3690 disable ldbrx
3691
3692 case $(tolower $cpu) in
3693 601|ppc601|powerpc601)
3694 cpuflags="-mcpu=601"
3695 disable altivec
3696 ;;
3697 603*|ppc603*|powerpc603*)
3698 cpuflags="-mcpu=603"
3699 disable altivec
3700 ;;
3701 604*|ppc604*|powerpc604*)
3702 cpuflags="-mcpu=604"
3703 disable altivec
3704 ;;
3705 g3|75*|ppc75*|powerpc75*)
3706 cpuflags="-mcpu=750"
3707 disable altivec
3708 ;;
3709 g4|745*|ppc745*|powerpc745*)
3710 cpuflags="-mcpu=7450"
3711 disable vsx
3712 ;;
3713 74*|ppc74*|powerpc74*)
3714 cpuflags="-mcpu=7400"
3715 disable vsx
3716 ;;
3717 g5|970|ppc970|powerpc970)
3718 cpuflags="-mcpu=970"
3719 disable vsx
3720 ;;
3721 power[3-6]*)
3722 cpuflags="-mcpu=$cpu"
3723 disable vsx
3724 ;;
3725 power[7-8]*)
3726 cpuflags="-mcpu=$cpu"
3727 enable ldbrx
3728 ;;
3729 cell)
3730 cpuflags="-mcpu=cell"
3731 enable ldbrx
3732 disable vsx
3733 ;;
3734 e500mc)
3735 cpuflags="-mcpu=e500mc"
3736 disable altivec
3737 ;;
3738 e500v2)
3739 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3740 disable altivec
3741 disable dcbzl
3742 ;;
3743 e500)
3744 cpuflags="-mcpu=8540 -mhard-float"
3745 disable altivec
3746 disable dcbzl
3747 ;;
3748 esac
3749
3750 elif enabled sparc; then
3751
3752 case $cpu in
3753 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3754 cpuflags="-mcpu=$cpu"
3755 ;;
3756 ultrasparc*|niagara[234])
3757 cpuflags="-mcpu=$cpu"
3758 ;;
3759 esac
3760
3761 elif enabled x86; then
3762
3763 case $cpu in
3764 i[345]86|pentium)
3765 cpuflags="-march=$cpu"
3766 disable i686
3767 disable mmx
3768 ;;
3769 # targets that do NOT support nopl and conditional mov (cmov)
3770 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3771 cpuflags="-march=$cpu"
3772 disable i686
3773 ;;
3774 # targets that do support nopl and conditional mov (cmov)
3775 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3776 cpuflags="-march=$cpu"
3777 enable i686
3778 enable fast_cmov
3779 ;;
3780 # targets that do support conditional mov but on which it's slow
3781 pentium4|pentium4m|prescott|nocona)
3782 cpuflags="-march=$cpu"
3783 enable i686
3784 disable fast_cmov
3785 ;;
3786 esac
3787
3788 fi
3789
3790 if [ "$cpu" != generic ]; then
3791 add_cflags $cpuflags
3792 add_asflags $cpuflags
3793 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3794 fi
3795
3796 # compiler sanity check
3797 check_exec <<EOF
3798 int main(void){ return 0; }
3799 EOF
3800 if test "$?" != 0; then
3801 echo "$cc is unable to create an executable file."
3802 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3803 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3804 echo "Only do this if you know what cross compiling means."
3805 fi
3806 die "C compiler test failed."
3807 fi
3808
3809 add_cppflags -D_ISOC99_SOURCE
3810
3811 # some compilers silently accept -std=c11, so we also need to check that the
3812 # version macro is defined properly
3813 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3814 add_cflags -std=c11 ||
3815 check_cflags -std=c99
3816
3817 check_cppflags -D_FILE_OFFSET_BITS=64
3818 check_cppflags -D_LARGEFILE_SOURCE
3819
3820 add_host_cppflags -D_ISOC99_SOURCE
3821 check_host_cflags -std=c99
3822 check_host_cflags -Wall
3823 check_host_cflags $host_cflags_speed
3824
3825 check_64bit(){
3826 arch32=$1
3827 arch64=$2
3828 expr=$3
3829 check_code cc "" "int test[2*($expr) - 1]" &&
3830 subarch=$arch64 || subarch=$arch32
3831 }
3832
3833 case "$arch" in
3834 aarch64|alpha|ia64)
3835 spic=$shared
3836 ;;
3837 mips)
3838 check_64bit mips mips64 '_MIPS_SIM > 1'
3839 spic=$shared
3840 ;;
3841 parisc)
3842 check_64bit parisc parisc64 'sizeof(void *) > 4'
3843 spic=$shared
3844 ;;
3845 ppc)
3846 check_64bit ppc ppc64 'sizeof(void *) > 4'
3847 spic=$shared
3848 ;;
3849 s390)
3850 check_64bit s390 s390x 'sizeof(void *) > 4'
3851 spic=$shared
3852 ;;
3853 sparc)
3854 check_64bit sparc sparc64 'sizeof(void *) > 4'
3855 spic=$shared
3856 ;;
3857 x86)
3858 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3859 if test "$subarch" = "x86_64"; then
3860 spic=$shared
3861 fi
3862 ;;
3863 esac
3864
3865 enable $subarch
3866 enabled spic && enable_weak pic
3867
3868 enabled x86_64 && objformat=elf64 || objformat="elf32"
3869
3870 # OS specific
3871 case $target_os in
3872 aix)
3873 SHFLAGS=-shared
3874 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3875 enabled shared && add_ldflags -Wl,-brtl
3876 ;;
3877 android)
3878 disable symver
3879 enable section_data_rel_ro
3880 SLIB_INSTALL_NAME='$(SLIBNAME)'
3881 SLIB_INSTALL_LINKS=
3882 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3883 ;;
3884 haiku)
3885 prefix_default="/boot/common"
3886 network_extralibs="-lnetwork"
3887 host_extralibs=
3888 ;;
3889 sunos)
3890 SHFLAGS='-shared -Wl,-h,$$(@F)'
3891 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3892 network_extralibs="-lsocket -lnsl"
3893 # When using suncc to build, the Solaris linker will mark
3894 # an executable with each instruction set encountered by
3895 # the Solaris assembler. As our libraries contain their own
3896 # guards for processor-specific code, instead suppress
3897 # generation of the HWCAPS ELF section on Solaris x86 only.
3898 enabled_all suncc x86 &&
3899 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3900 add_ldflags -Wl,-M,mapfile
3901 nm_default='nm -P -g'
3902 version_script='-M'
3903 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3904 ;;
3905 netbsd)
3906 disable symver
3907 oss_indev_extralibs="-lossaudio"
3908 oss_outdev_extralibs="-lossaudio"
3909 ;;
3910 openbsd|bitrig)
3911 disable symver
3912 SHFLAGS='-shared'
3913 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3914 SLIB_INSTALL_LINKS=
3915 oss_indev_extralibs="-lossaudio"
3916 oss_outdev_extralibs="-lossaudio"
3917 ;;
3918 dragonfly)
3919 disable symver
3920 ;;
3921 freebsd)
3922 ;;
3923 bsd/os)
3924 add_extralibs -lpoll -lgnugetopt
3925 ;;
3926 darwin)
3927 enabled ppc && add_asflags -force_cpusubtype_ALL
3928 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3929 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3930 add_ldflags -Wl,-dynamic,-search_paths_first
3931 check_cflags -Werror=partial-availability
3932 SLIBSUF=".dylib"
3933 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3934 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3935 enabled x86_64 && objformat="macho64" || objformat="macho32"
3936 enabled_any pic shared ||
3937 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3938 check_header dispatch/dispatch.h &&
3939 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3940 if test -n "$sysroot"; then
3941 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3942 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3943 fi
3944 ;;
3945 msys*)
3946 die "Native MSYS builds are discouraged, please use the MINGW environment."
3947 ;;
3948 mingw32*|mingw64*)
3949 target_os=mingw32
3950 LIBTARGET=i386
3951 if enabled x86_64; then
3952 LIBTARGET="i386:x86-64"
3953 fi
3954 if enabled shared; then
3955 # Cannot build both shared and static libs when using dllexport.
3956 disable static
3957 fi
3958 check_ldflags -Wl,--nxcompat
3959 check_ldflags -Wl,--dynamicbase
3960 shlibdir_default="$bindir_default"
3961 SLIBPREF=""
3962 SLIBSUF=".dll"
3963 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3964 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3965 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3966 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3967 SLIB_INSTALL_LINKS=
3968 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3969 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3970 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3971 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3972 enabled x86_64 && objformat="win64" || objformat="win32"
3973 dlltool="${cross_prefix}dlltool"
3974 ranlib=:
3975 enable dos_paths
3976 ;;
3977 win32|win64)
3978 disable symver
3979 if enabled shared; then
3980 # Link to the import library instead of the normal static library
3981 # for shared libs.
3982 LD_LIB='%.lib'
3983 # Cannot build both shared and static libs with MSVC or icl.
3984 disable static
3985 fi
3986 shlibdir_default="$bindir_default"
3987 SLIBPREF=""
3988 SLIBSUF=".dll"
3989 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3990 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3991 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3992 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3993 SLIB_INSTALL_LINKS=
3994 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3995 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3996 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3997 enabled x86_64 && objformat="win64" || objformat="win32"
3998 ranlib=:
3999 enable dos_paths
4000 ;;
4001 cygwin*)
4002 target_os=cygwin
4003 shlibdir_default="$bindir_default"
4004 SLIBPREF="cyg"
4005 SLIBSUF=".dll"
4006 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4007 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4008 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4009 SLIB_INSTALL_LINKS=
4010 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4011 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4012 enabled x86_64 && objformat="win64" || objformat="win32"
4013 enable dos_paths
4014 ;;
4015 *-dos|freedos|opendos)
4016 network_extralibs="-lsocket"
4017 objformat="coff"
4018 enable dos_paths
4019 add_cppflags -U__STRICT_ANSI__
4020 ;;
4021 linux)
4022 enable dv1394
4023 enable section_data_rel_ro
4024 ;;
4025 irix*)
4026 target_os=irix
4027 ranlib="echo ignoring ranlib"
4028 ;;
4029 os/2*)
4030 ln_s="cp -f"
4031 objformat="aout"
4032 add_cppflags -D_GNU_SOURCE
4033 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4034 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4035 LIBSUF="_s.a"
4036 SLIBPREF=""
4037 SLIBSUF=".dll"
4038 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4039 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4040 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4041 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4042 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4043 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4044 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4045 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4046 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4047 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4048 enable dos_paths
4049 ;;
4050 gnu/kfreebsd)
4051 add_cppflags -D_BSD_SOURCE
4052 ;;
4053 gnu)
4054 ;;
4055 qnx)
4056 add_cppflags -D_QNX_SOURCE
4057 network_extralibs="-lsocket"
4058 ;;
4059 symbian)
4060 SLIBSUF=".dll"
4061 enable dos_paths
4062 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4063 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4064 add_ldflags -Wl,--target1-abs,--no-undefined \
4065 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4066 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4067 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4068 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4069 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4070 ;;
4071 minix)
4072 ;;
4073 none)
4074 ;;
4075 *)
4076 die "Unknown OS '$target_os'."
4077 ;;
4078 esac
4079
4080 # determine libc flavour
4081
4082 probe_libc(){
4083 pfx=$1
4084 pfx_no_=${pfx%_}
4085 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4086 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4087 eval ${pfx}libc_type=uclibc
4088 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4089 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4090 eval ${pfx}libc_type=glibc
4091 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4092 # MinGW headers can be installed on Cygwin, so check for newlib first.
4093 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4094 eval ${pfx}libc_type=newlib
4095 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4096 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4097 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4098 eval ${pfx}libc_type=mingw64
4099 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4100 eval test \$${pfx_no_}cc_type = "gcc" &&
4101 add_${pfx}cppflags -D__printf__=__gnu_printf__
4102 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4103 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4104 eval ${pfx}libc_type=mingw32
4105 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4106 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4107 die "ERROR: MinGW32 runtime version must be >= 3.15."
4108 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4109 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4110 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4111 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4112 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4113 eval test \$${pfx_no_}cc_type = "gcc" &&
4114 add_${pfx}cppflags -D__printf__=__gnu_printf__
4115 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4116 eval ${pfx}libc_type=msvcrt
4117 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4118 if [ "$pfx" = host_ ]; then
4119 add_host_cppflags -Dsnprintf=_snprintf
4120 else
4121 add_compat strtod.o strtod=avpriv_strtod
4122 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4123 _snprintf=avpriv_snprintf \
4124 vsnprintf=avpriv_vsnprintf
4125 fi
4126 fi
4127 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4128 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4129 # 0x601 by default unless something else is set by the user.
4130 # This can easily lead to us detecting functions only present
4131 # in such new versions and producing binaries requiring windows 7.0.
4132 # Therefore explicitly set the default to XP unless the user has
4133 # set something else on the command line.
4134 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4135 # family. For these cases, configure is free to use any functions
4136 # found in the SDK headers by default. (Alternatively, we could force
4137 # _WIN32_WINNT to 0x0602 in that case.)
4138 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4139 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4140 #ifdef WINAPI_FAMILY
4141 #include <winapifamily.h>
4142 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4143 #error not desktop
4144 #endif
4145 #endif
4146 EOF
4147 if [ "$pfx" = "" ]; then
4148 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4149 fi
4150 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4151 eval ${pfx}libc_type=klibc
4152 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4153 eval ${pfx}libc_type=bionic
4154 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4155 eval ${pfx}libc_type=solaris
4156 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4157 else
4158 eval ${pfx}libc_type=default
4159 add_${pfx}cppflags -D_DEFAULT_SOURCE
4160 fi
4161 }
4162
4163 probe_libc
4164 test -n "$libc_type" && enable libc_$libc_type
4165 probe_libc host_
4166 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4167
4168 # hacks for compiler/libc/os combinations
4169
4170 case $libc_type in
4171 bionic)
4172 add_compat strtod.o strtod=avpriv_strtod
4173 ;;
4174 glibc)
4175 if enabled tms470; then
4176 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4177 add_cppflags -D__USER_LABEL_PREFIX__=
4178 add_cppflags -D__builtin_memset=memset
4179 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4180 add_cflags -pds=48 # incompatible redefinition of macro
4181 fi
4182 ;;
4183 esac
4184
4185 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4186 add_cppflags '-I\$(SRC_PATH)/compat/float'
4187
4188 esc(){
4189 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4190 }
4191
4192 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4193
4194 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4195
4196 set_default $PATHS_LIST
4197 set_default nm
4198
4199 # we need to build at least one lib type
4200 if ! enabled_any static shared; then
4201 cat <<EOF
4202 At least one library type must be built.
4203 Specify --enable-static to build the static libraries or --enable-shared to
4204 build the shared libraries as well. To only build the shared libraries specify
4205 --disable-static in addition to --enable-shared.
4206 EOF
4207 exit 1
4208 fi
4209
4210 disabled optimizations || check_cflags -fomit-frame-pointer
4211
4212 enable_weak_pic() {
4213 disabled pic && return
4214 enable pic
4215 add_cppflags -DPIC
4216 case "$target_os" in
4217 mingw*|cygwin*)
4218 ;;
4219 *)
4220 add_cflags -fPIC
4221 ;;
4222 esac
4223 add_asflags -fPIC
4224 }
4225
4226 enabled pic && enable_weak_pic
4227
4228 check_cc <<EOF || die "Symbol mangling check failed."
4229 int ff_extern;
4230 EOF
4231 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4232 extern_prefix=${sym%%ff_extern*}
4233
4234 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4235
4236 _restrict=
4237 for restrict_keyword in restrict __restrict__ __restrict; do
4238 check_cc <<EOF && _restrict=$restrict_keyword && break
4239 void foo(char * $restrict_keyword p);
4240 EOF
4241 done
4242
4243 check_cc <<EOF && enable pragma_deprecated
4244 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4245 EOF
4246
4247 check_cc <<EOF || die "endian test failed"
4248 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4249 EOF
4250 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4251
4252 check_gas() {
4253 log "check_gas using '$as' as AS"
4254 # :vararg is used on aarch64, arm and ppc altivec
4255 check_as <<EOF || return 1
4256 .macro m n, y:vararg=0
4257 \n: .int \y
4258 .endm
4259 m x
4260 EOF
4261 # .altmacro is only used in arm asm
4262 ! enabled arm || check_as <<EOF || return 1
4263 .altmacro
4264 EOF
4265 enable gnu_as
4266 return 0
4267 }
4268
4269 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4270 nogas=:
4271 enabled_any arm aarch64 && nogas=die
4272 enabled_all ppc altivec && nogas=warn
4273 as_noop=-v
4274
4275 case $as_type in
4276 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4277 gcc) gaspp_as_type=gas ;;
4278 *) gaspp_as_type=$as_type ;;
4279 esac
4280
4281 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4282
4283 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4284 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4285
4286 if ! check_gas ; then
4287 as=${gas:=$as}
4288 check_gas || \
4289 $nogas "GNU assembler not found, install/update gas-preprocessor"
4290 fi
4291
4292 check_as <<EOF && enable as_func
4293 .func test
4294 .endfunc
4295 EOF
4296 fi
4297
4298 check_inline_asm inline_asm_labels '"1:\n"'
4299
4300 if enabled aarch64; then
4301 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4302 # internal assembler in clang 3.3 does not support this instruction
4303 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4304 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4305
4306 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4307
4308 elif enabled alpha; then
4309
4310 check_cflags -mieee
4311
4312 elif enabled arm; then
4313
4314 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4315 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4316 enabled thumb && check_cflags -mthumb || check_cflags -marm
4317
4318 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4319 enable vfp_args
4320 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4321 enable vfp_args
4322 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4323 case "${cross_prefix:-$cc}" in
4324 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4325 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4326 __asm__ (".eabi_attribute 28, 1");
4327 int main(void) { return 0; }
4328 EOF
4329 esac
4330 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4331 fi
4332
4333 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4334 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4335 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4336 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4337 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4338 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4339
4340 [ $target_os = linux ] || [ $target_os = android ] ||
4341 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4342 $ARCH_EXT_LIST_ARM
4343
4344 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4345
4346 check_as <<EOF && enable as_arch_directive
4347 .arch armv7-a
4348 EOF
4349 check_as <<EOF && enable as_fpu_directive
4350 .fpu neon
4351 EOF
4352
4353 # llvm's integrated assembler supports .object_arch from llvm 3.5
4354 [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4355 check_as <<EOF && enable as_object_arch
4356 .object_arch armv4
4357 EOF
4358
4359 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4360
4361 elif enabled mips; then
4362
4363 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4364
4365 # make sure that only an instruction set is enabled
4366 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4367
4368 if enabled mips64; then
4369 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||