lavc: Add coded bitstream read/write support for H.265
[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 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-cuvid Nvidia CUVID video decode acceleration
241 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
243 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
244 --enable-libnpp Nvidia CUDA processing
245 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246 --enable-nvenc Nvidia video encoding
247 --enable-omx OpenMAX IL
248 --enable-omx-rpi OpenMAX IL for Raspberry Pi
249 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
250 --enable-vda Apple Video Decode Acceleration [auto]
251 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254 --arch=ARCH select architecture [$arch]
255 --cpu=CPU select the minimum required CPU (affects
256 instruction selection, may crash on older CPUs)
257 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
258 --enable-cross-compile assume a cross-compiler is used
259 --sysroot=PATH root of cross-build tree
260 --sysinclude=PATH location of cross-build system headers
261 --target-os=OS compiler targets OS [$target_os]
262 --target-exec=CMD command to run executables on target
263 --target-path=DIR path to view of build directory on target
264 --target-samples=DIR path to samples directory on target
265 --toolchain=NAME set tool defaults according to NAME
266 --nm=NM use nm tool
267 --ar=AR use archive tool AR [$ar_default]
268 --as=AS use assembler AS [$as_default]
269 --cc=CC use C compiler CC [$cc_default]
270 --objcc=OCC use ObjC compiler OCC [$cc_default]
271 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
272 --ld=LD use linker LD
273 --x86asmexe=X86ASM use x86 assembler X86ASM
274 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
275 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276 --host-cc=HOSTCC use host C compiler HOSTCC
277 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
278 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279 --host-ld=HOSTLD use host linker HOSTLD
280 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
281 --host-libs=HLIBS use libs HLIBS when linking for host
282 --host-os=OS compiler host OS [$target_os]
283 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
284 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
285 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288 --extra-libs=ELIBS add ELIBS [$ELIBS]
289 --extra-version=STRING version string suffix []
290 --optflags=OPTFLAGS override optimization-related compiler flags
291 --enable-pic build position-independent code
292 --enable-thumb compile for Thumb instruction set
293 --enable-lto use link-time optimization
294 --env="ENV=override" override the environment variables
295
296 Advanced options (experts only):
297 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
298 --custom-allocator=NAME use a supported custom allocator
299 --disable-symver disable symbol versioning
300 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301 --disable-safe-bitstream-reader
302 disable buffer boundary checking in bitreaders
303 (faster, but may crash)
304 --enable-sram allow use of on-chip SRAM
305
306 Optimization options (experts only):
307 --disable-asm disable all assembly optimizations
308 --disable-altivec disable AltiVec optimizations
309 --disable-vsx disable VSX optimizations
310 --disable-power8 disable POWER8 optimizations
311 --disable-amd3dnow disable 3DNow! optimizations
312 --disable-amd3dnowext disable 3DNow! extended optimizations
313 --disable-mmx disable MMX optimizations
314 --disable-mmxext disable MMXEXT optimizations
315 --disable-sse disable SSE optimizations
316 --disable-sse2 disable SSE2 optimizations
317 --disable-sse3 disable SSE3 optimizations
318 --disable-ssse3 disable SSSE3 optimizations
319 --disable-sse4 disable SSE4 optimizations
320 --disable-sse42 disable SSE4.2 optimizations
321 --disable-avx disable AVX optimizations
322 --disable-xop disable XOP optimizations
323 --disable-fma3 disable FMA3 optimizations
324 --disable-fma4 disable FMA4 optimizations
325 --disable-avx2 disable AVX2 optimizations
326 --disable-armv5te disable armv5te optimizations
327 --disable-armv6 disable armv6 optimizations
328 --disable-armv6t2 disable armv6t2 optimizations
329 --disable-vfp disable VFP optimizations
330 --disable-neon disable NEON optimizations
331 --disable-inline-asm disable use of inline assembly
332 --disable-x86asm disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335 --disable-debug disable debugging symbols
336 --enable-debug=LEVEL set the debug level [$debuglevel]
337 --disable-optimizations disable compiler optimizations
338 --enable-extra-warnings enable more compiler warnings
339 --samples=PATH location of test samples for FATE, if not set use
340 \$LIBAV_SAMPLES at make invocation time.
341 --enable-neon-clobber-test check NEON registers for clobbering (should be
342 used only for debugging purposes)
343 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344 should be used only for debugging purposes)
345 --enable-random randomly enable/disable components
346 --disable-random
347 --enable-random=LIST randomly enable/disable specific components or
348 --disable-random=LIST component groups. LIST is a comma-separated list
349 of NAME[:PROB] entries where NAME is a component
350 (group) and PROB the probability associated with
351 NAME (default 0.5).
352 --random-seed=VALUE seed value for --enable/disable-random
353 --disable-valgrind-backtrace do not print a backtrace under Valgrind
354 (only applies to --disable-optimizations builds)
355 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
356 in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360 exit 0
361 }
362
363 quotes='""'
364
365 log(){
366 echo "$@" >> $logfile
367 }
368
369 log_file(){
370 log BEGIN $1
371 i=1
372 while read line; do
373 printf '%5s %s\n' "${i}" "${line}"
374 i=$(($i+1))
375 done < $1 >> $logfile
376 log END $1
377 }
378
379 echolog(){
380 log "$@"
381 echo "$@"
382 }
383
384 warn(){
385 log "WARNING: $*"
386 WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390 echolog "$@"
391 cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git. If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397 if disabled logging; then
398 cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402 else
403 cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407 fi
408 exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421 echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425 v=$(echo "$1" | sed "s/'/'\\\\''/g")
426 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427 echo "$v"
428 }
429
430 cleanws(){
431 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
432 }
433
434 filter(){
435 pat=$1
436 shift
437 for v; do
438 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439 done
440 }
441
442 filter_out(){
443 pat=$1
444 shift
445 for v; do
446 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447 done
448 }
449
450 map(){
451 m=$1
452 shift
453 for v; do eval $m; done
454 }
455
456 add_suffix(){
457 suffix=$1
458 shift
459 for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463 value=$1
464 shift
465 for var in $*; do
466 eval $var=$value
467 done
468 }
469
470 set_weak(){
471 value=$1
472 shift
473 for var; do
474 eval : \${$var:=$value}
475 done
476 }
477
478 sanitize_var_name(){
479 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483 var=$1
484 shift
485 eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489 eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:=0}
495 eval ${pvar}_${level}="\$$pvar"
496 eval ${pvar}_level=$(($level+1))
497 done
498 }
499
500 popvar(){
501 for pvar in $*; do
502 eval level=\${${pvar}_level:-0}
503 test $level = 0 && continue
504 eval level=$(($level-1))
505 eval $pvar="\${${pvar}_${level}}"
506 eval ${pvar}_level=$level
507 eval unset ${pvar}_${level}
508 done
509 }
510
511 enable(){
512 set_all yes $*
513 }
514
515 disable(){
516 set_all no $*
517 }
518
519 enable_weak(){
520 set_weak yes $*
521 }
522
523 disable_weak(){
524 set_weak no $*
525 }
526
527 enable_sanitized(){
528 for var; do
529 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 disable_sanitized(){
534 for var; do
535 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536 done
537 }
538
539 do_enable_deep(){
540 for var; do
541 enabled $var && continue
542 eval sel="\$${var}_select"
543 eval sgs="\$${var}_suggest"
544 pushvar var sgs
545 enable_deep $sel
546 popvar sgs
547 enable_deep_weak $sgs
548 popvar var
549 done
550 }
551
552 enable_deep(){
553 do_enable_deep $*
554 enable $*
555 }
556
557 enable_deep_weak(){
558 for var; do
559 disabled $var && continue
560 pushvar var
561 do_enable_deep $var
562 popvar var
563 enable_weak $var
564 done
565 }
566
567 enabled(){
568 test "${1#!}" = "$1" && op== || op=!=
569 eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573 test "${1#!}" = "$1" && op== || op=!=
574 eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578 for opt; do
579 enabled $opt || return 1
580 done
581 }
582
583 disabled_all(){
584 for opt; do
585 disabled $opt || return 1
586 done
587 }
588
589 enabled_any(){
590 for opt; do
591 enabled $opt && return 0
592 done
593 }
594
595 disabled_any(){
596 for opt; do
597 disabled $opt && return 0
598 done
599 return 1
600 }
601
602 set_default(){
603 for opt; do
604 eval : \${$opt:=\$${opt}_default}
605 done
606 }
607
608 is_in(){
609 value=$1
610 shift
611 for var in $*; do
612 [ $var = $value ] && return 0
613 done
614 return 1
615 }
616
617 check_deps(){
618 for cfg; do
619 enabled ${cfg}_checking && die "Circular dependency for $cfg."
620 disabled ${cfg}_checking && continue
621 enable ${cfg}_checking
622
623 eval dep_all="\$${cfg}_deps"
624 eval dep_any="\$${cfg}_deps_any"
625 eval dep_con="\$${cfg}_conflict"
626 eval dep_sel="\$${cfg}_select"
627 eval dep_sgs="\$${cfg}_suggest"
628 eval dep_ifa="\$${cfg}_if"
629 eval dep_ifn="\$${cfg}_if_any"
630
631 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637 enabled_all $dep_all || disable $cfg
638 enabled_any $dep_any || disable $cfg
639 disabled_all $dep_con || disable $cfg
640 disabled_any $dep_sel && disable $cfg
641
642 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645 # filter out library deps, these do not belong in extralibs
646 is_in $dep $LIBRARY_LIST && continue
647 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648 done
649
650 disable ${cfg}_checking
651 done
652 }
653
654 print_config(){
655 pfx=$1
656 files=$2
657 shift 2
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
660 {
661 c = \"$pfx\" toupper(\$1);
662 v = \$2;
663 sub(/yes/, 1, v);
664 sub(/no/, 0, v);
665 for (f in files) {
666 file = files[f];
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
674 }
675 }
676 }"
677 }
678
679 print_enabled(){
680 suf=$1
681 shift
682 for v; do
683 enabled $v && printf "%s\n" ${v%$suf}
684 done
685 }
686
687 append(){
688 var=$1
689 shift
690 eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694 var=$1
695 shift
696 eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700 var=$1
701 uniq_list=""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
704 done
705 eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709 var=$1
710 tmpvar=
711 for entry in $(eval echo \$$var); do
712 tmpvar="$tmpvar $(eval echo \$${entry})"
713 done
714 eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718 append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722 append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726 append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730 append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734 append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738 append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742 append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746 append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750 append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754 prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758 append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762 append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766 append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770 append compat_objs $1
771 shift
772 map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776 log "$@"
777 "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781 eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785 eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789 log check_cc "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796 log check_objcc "$@"
797 cat > $TMPC
798 log_file $TMPC
799 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803 log check_cpp "$@"
804 cat > $TMPC
805 log_file $TMPC
806 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810 eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814 log check_as "$@"
815 cat > $TMPS
816 log_file $TMPS
817 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821 log check_inline_asm "$@"
822 name="$1"
823 code="$2"
824 shift 2
825 disable $name
826 check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832 log check_insn "$@"
833 check_inline_asm ${1}_inline "\"$2\""
834 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838 log check_x86asm "$@"
839 echo "$1" > $TMPS
840 log_file $TMPS
841 shift 1
842 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846 eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850 log check_ld "$@"
851 flags=$(filter_out '-l*' "$@")
852 libs=$(filter '-l*' "$@")
853 check_cc $($cflags_filter $flags) || return
854 flags=$($ldflags_filter $flags)
855 libs=$($ldflags_filter $libs)
856 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860 hdr=$1
861 test "${hdr%.h}" = "${hdr}" &&
862 echo "#include $hdr" ||
863 echo "#include <$hdr>"
864 }
865
866 check_code(){
867 log check_code "$@"
868 check=$1
869 headers=$2
870 code=$3
871 shift 3
872 {
873 for hdr in $headers; do
874 print_include $hdr
875 done
876 echo "int main(void) { $code; return 0; }"
877 } | check_$check "$@"
878 }
879
880 check_cppflags(){
881 log check_cppflags "$@"
882 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888 log test_cflags "$@"
889 set -- $($cflags_filter "$@")
890 check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896 log check_cflags "$@"
897 test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901 log test_objcflags "$@"
902 set -- $($objcflags_filter "$@")
903 check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909 log check_objcflags "$@"
910 test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914 log test_ldflags "$@"
915 check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921 log check_ldflags "$@"
922 test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926 log test_stripflags "$@"
927 # call check_cc to get a fresh TMPO
928 check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931 check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935 log check_stripflags "$@"
936 test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940 log check_header "$@"
941 header=$1
942 shift
943 disable_sanitized $header
944 check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951 log check_func "$@"
952 func=$1
953 shift
954 disable $func
955 check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962 log check_mathfunc "$@"
963 func=$1
964 narg=$2
965 shift 2
966 test $narg = 2 && args="f, g" || args="f"
967 disable $func
968 check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976 log check_func_headers "$@"
977 headers=$1
978 funcs=$2
979 shift 2
980 {
981 for hdr in $headers; do
982 print_include $hdr
983 done
984 for func in $funcs; do
985 echo "long check_$func(void) { return (long) $func; }"
986 done
987 echo "int main(void) { return 0; }"
988 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992 log check_cpp_condition "$@"
993 header=$1
994 condition=$2
995 shift 2
996 check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005 log test_cflags_cpp "$@"
1006 flags=$1
1007 condition=$2
1008 shift 2
1009 set -- $($cflags_filter "$flags")
1010 check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018 log check_lib "$@"
1019 name="$1"
1020 headers="$2"
1021 funcs="$3"
1022 shift 3
1023 disable $name
1024 check_func_headers "$headers" "$funcs" "$@" &&
1025 enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 check_pkg_config(){
1029 log check_pkg_config "$@"
1030 name="$1"
1031 pkg_version="$2"
1032 pkg="${2%% *}"
1033 headers="$3"
1034 funcs="$4"
1035 shift 4
1036 disable $name
1037 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041 enable $name &&
1042 add_cflags "$pkg_cflags" &&
1043 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1044 }
1045
1046 check_exec(){
1047 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1048 }
1049
1050 check_exec_crash(){
1051 log check_exec_crash "$@"
1052 code=$(cat)
1053
1054 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1055 # are safe but may not be available everywhere. Thus we use
1056 # raise(SIGTERM) instead. The check is run in a subshell so we
1057 # can redirect the "Terminated" message from the shell. SIGBUS
1058 # is not defined by standard C so it is used conditionally.
1059
1060 (check_exec "$@") >> $logfile 2>&1 <<EOF
1061 #include <signal.h>
1062 static void sighandler(int sig){
1063 raise(SIGTERM);
1064 }
1065 int foo(void){
1066 $code
1067 }
1068 int (*func_ptr)(void) = foo;
1069 int main(void){
1070 signal(SIGILL, sighandler);
1071 signal(SIGFPE, sighandler);
1072 signal(SIGSEGV, sighandler);
1073 #ifdef SIGBUS
1074 signal(SIGBUS, sighandler);
1075 #endif
1076 return func_ptr();
1077 }
1078 EOF
1079 }
1080
1081 check_type(){
1082 log check_type "$@"
1083 headers=$1
1084 type=$2
1085 shift 2
1086 disable_sanitized "$type"
1087 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1088 }
1089
1090 check_struct(){
1091 log check_struct "$@"
1092 headers=$1
1093 struct=$2
1094 member=$3
1095 shift 3
1096 disable_sanitized "${struct}_${member}"
1097 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1098 enable_sanitized "${struct}_${member}"
1099 }
1100
1101 check_builtin(){
1102 log check_builtin "$@"
1103 name=$1
1104 headers=$2
1105 builtin=$3
1106 shift 3
1107 disable "$name"
1108 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1109 }
1110
1111 check_compile_assert(){
1112 log check_compile_assert "$@"
1113 name=$1
1114 headers=$2
1115 condition=$3
1116 shift 3
1117 disable "$name"
1118 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1119 }
1120
1121 require(){
1122 log require "$@"
1123 name_version="$1"
1124 name="${1%% *}"
1125 headers="$2"
1126 func="$3"
1127 shift 3
1128 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1129 }
1130
1131 require_header(){
1132 log require "$@"
1133 header="$1"
1134 shift
1135 check_header "$header" "$@" || die "ERROR: $header not found"
1136 }
1137
1138 require_cpp_condition(){
1139 log require "$@"
1140 header="$1"
1141 condition="$2"
1142 shift 2
1143 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1144 }
1145
1146 require_pkg_config(){
1147 log require_pkg_config "$@"
1148 pkg_version="$2"
1149 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1150 }
1151
1152 hostcc_e(){
1153 eval printf '%s\\n' $HOSTCC_E
1154 }
1155
1156 hostcc_o(){
1157 eval printf '%s\\n' $HOSTCC_O
1158 }
1159
1160 check_host_cc(){
1161 log check_host_cc "$@"
1162 cat > $TMPC
1163 log_file $TMPC
1164 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1165 }
1166
1167 check_host_cpp(){
1168 log check_host_cpp "$@"
1169 cat > $TMPC
1170 log_file $TMPC
1171 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1172 }
1173
1174 check_host_cppflags(){
1175 log check_host_cppflags "$@"
1176 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1177 #include <stdlib.h>;
1178 EOF
1179 }
1180
1181 check_host_cflags(){
1182 log check_host_cflags "$@"
1183 set -- $($host_cflags_filter "$@")
1184 check_host_cc "$@" <<EOF && append host_cflags "$@"
1185 int x;
1186 EOF
1187 }
1188
1189 check_host_cpp_condition(){
1190 log check_host_cpp_condition "$@"
1191 header=$1
1192 condition=$2
1193 shift 2
1194 check_host_cpp "$@" <<EOF
1195 #include <$header>
1196 #if !($condition)
1197 #error "unsatisfied condition: $condition"
1198 #endif
1199 EOF
1200 }
1201
1202 apply(){
1203 file=$1
1204 shift
1205 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1206 }
1207
1208 cp_if_changed(){
1209 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1210 mkdir -p "$(dirname $2)"
1211 cp -f "$1" "$2"
1212 }
1213
1214 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1215 # system-dependent things.
1216
1217 AVCODEC_COMPONENTS="
1218 bsfs
1219 decoders
1220 encoders
1221 hwaccels
1222 parsers
1223 "
1224
1225 AVDEVICE_COMPONENTS="
1226 indevs
1227 outdevs
1228 "
1229 AVFILTER_COMPONENTS="
1230 filters
1231 "
1232 AVFORMAT_COMPONENTS="
1233 demuxers
1234 muxers
1235 protocols
1236 "
1237
1238 AVRESAMPLE_COMPONENTS=""
1239 AVUTIL_COMPONENTS=""
1240
1241 COMPONENT_LIST="
1242 $AVCODEC_COMPONENTS
1243 $AVDEVICE_COMPONENTS
1244 $AVFILTER_COMPONENTS
1245 $AVFORMAT_COMPONENTS
1246 $AVRESAMPLE_COMPONENTS
1247 $AVUTIL_COMPONENTS
1248 "
1249
1250 EXAMPLE_LIST="
1251 decode_audio_example
1252 decode_video_example
1253 encode_audio_example
1254 encode_video_example
1255 filter_audio_example
1256 metadata_example
1257 output_example
1258 qsvdec_example
1259 transcode_aac_example
1260 "
1261
1262 # catchall list of things that require external libs to link
1263 EXTRALIBS_LIST="
1264 cpu_init
1265 cws2fws
1266 "
1267
1268 HWACCEL_LIBRARY_NONFREE_LIST="
1269 cuda
1270 cuvid
1271 libnpp
1272 "
1273 HWACCEL_LIBRARY_LIST="
1274 $HWACCEL_LIBRARY_NONFREE_LIST
1275 d3d11va
1276 dxva2
1277 libmfx
1278 mmal
1279 nvenc
1280 omx
1281 vaapi
1282 vda
1283 vdpau
1284 "
1285
1286 EXTERNAL_LIBRARY_GPL_LIST="
1287 libcdio
1288 libx264
1289 libx265
1290 libxavs
1291 libxvid
1292 "
1293
1294 EXTERNAL_LIBRARY_NONFREE_LIST="
1295 libfaac
1296 libfdk_aac
1297 openssl
1298 "
1299
1300 EXTERNAL_LIBRARY_VERSION3_LIST="
1301 libopencore_amrnb
1302 libopencore_amrwb
1303 libvo_aacenc
1304 libvo_amrwbenc
1305 "
1306
1307 EXTERNAL_LIBRARY_LIST="
1308 $EXTERNAL_LIBRARY_GPL_LIST
1309 $EXTERNAL_LIBRARY_NONFREE_LIST
1310 $EXTERNAL_LIBRARY_VERSION3_LIST
1311 avisynth
1312 avxsynth
1313 frei0r
1314 gnutls
1315 libbs2b
1316 libdc1394
1317 libdcadec
1318 libfontconfig
1319 libfreetype
1320 libgsm
1321 libhdcd
1322 libilbc
1323 libjack
1324 libkvazaar
1325 libmp3lame
1326 libopencv
1327 libopenh264
1328 libopenjpeg
1329 libopus
1330 libpulse
1331 librtmp
1332 libschroedinger
1333 libsnappy
1334 libspeex
1335 libtheora
1336 libtwolame
1337 libvorbis
1338 libvpx
1339 libwavpack
1340 libwebp
1341 libxcb
1342 libxcb_shm
1343 libxcb_xfixes
1344 "
1345
1346 SYSTEM_LIBRARY_LIST="
1347 bzlib
1348 zlib
1349 "
1350
1351 FEATURE_LIST="
1352 gray
1353 hardcoded_tables
1354 omx_rpi
1355 runtime_cpudetect
1356 safe_bitstream_reader
1357 shared
1358 small
1359 sram
1360 static
1361 swscale_alpha
1362 "
1363
1364 LIBRARY_LIST="
1365 avcodec
1366 avdevice
1367 avfilter
1368 avformat
1369 avresample
1370 avutil
1371 swscale
1372 "
1373
1374 LICENSE_LIST="
1375 gpl
1376 nonfree
1377 version3
1378 "
1379
1380 PROGRAM_LIST="
1381 avconv
1382 avplay
1383 avprobe
1384 "
1385
1386 SUBSYSTEM_LIST="
1387 dct
1388 doc
1389 error_resilience
1390 faan
1391 fft
1392 lsp
1393 lzo
1394 mdct
1395 network
1396 rdft
1397 "
1398
1399 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1400 CONFIG_LIST="
1401 $EXAMPLE_LIST
1402 $EXTERNAL_LIBRARY_LIST
1403 $HWACCEL_LIBRARY_LIST
1404 $FEATURE_LIST
1405 $LICENSE_LIST
1406 $LIBRARY_LIST
1407 $PROGRAM_LIST
1408 $SUBSYSTEM_LIST
1409 $SYSTEM_LIBRARY_LIST
1410 neon_clobber_test
1411 pic
1412 pod2man
1413 texi2html
1414 thumb
1415 valgrind_backtrace
1416 xmm_clobber_test
1417 $COMPONENT_LIST
1418 "
1419
1420 THREADS_LIST="
1421 pthreads
1422 w32threads
1423 "
1424
1425 ATOMICS_LIST="
1426 atomics_gcc
1427 atomics_suncc
1428 atomics_win32
1429 "
1430
1431 ARCH_LIST="
1432 aarch64
1433 alpha
1434 arm
1435 avr32
1436 avr32_ap
1437 avr32_uc
1438 bfin
1439 ia64
1440 m68k
1441 mips
1442 mips64
1443 parisc
1444 ppc
1445 ppc64
1446 s390
1447 sh4
1448 sparc
1449 sparc64
1450 tilegx
1451 tilepro
1452 tomi
1453 x86
1454 x86_32
1455 x86_64
1456 "
1457
1458 ARCH_EXT_LIST_ARM="
1459 armv5te
1460 armv6
1461 armv6t2
1462 armv8
1463 neon
1464 vfp
1465 vfpv3
1466 "
1467
1468 ARCH_EXT_LIST_X86_SIMD="
1469 amd3dnow
1470 amd3dnowext
1471 avx
1472 avx2
1473 fma3
1474 fma4
1475 mmx
1476 mmxext
1477 sse
1478 sse2
1479 sse3
1480 sse4
1481 sse42
1482 ssse3
1483 xop
1484 "
1485
1486 ARCH_EXT_LIST_PPC="
1487 altivec
1488 dcbzl
1489 ldbrx
1490 power8
1491 ppc4xx
1492 vsx
1493 "
1494
1495 ARCH_EXT_LIST_X86="
1496 $ARCH_EXT_LIST_X86_SIMD
1497 cpunop
1498 i686
1499 "
1500
1501 ARCH_EXT_LIST_MIPS="
1502 loongson
1503 mips32r1
1504 mips64r1
1505 mips32r2
1506 mips64r2
1507 mips32r6
1508 mips64r6
1509 "
1510
1511 ARCH_EXT_LIST="
1512 $ARCH_EXT_LIST_ARM
1513 $ARCH_EXT_LIST_MIPS
1514 $ARCH_EXT_LIST_PPC
1515 $ARCH_EXT_LIST_X86
1516 vis
1517 "
1518
1519 ARCH_FEATURES="
1520 aligned_stack
1521 fast_64bit
1522 fast_clz
1523 fast_cmov
1524 local_aligned_8
1525 local_aligned_16
1526 local_aligned_32
1527 simd_align_16
1528 simd_align_32
1529 "
1530
1531 BUILTIN_LIST="
1532 atomic_cas_ptr
1533 machine_rw_barrier
1534 MemoryBarrier
1535 mm_empty
1536 rdtsc
1537 sem_timedwait
1538 sync_val_compare_and_swap
1539 "
1540 HAVE_LIST_CMDLINE="
1541 inline_asm
1542 symver
1543 x86asm
1544 "
1545
1546 HAVE_LIST_PUB="
1547 bigendian
1548 fast_unaligned
1549 "
1550
1551 HEADERS_LIST="
1552 AVFoundation_AVFoundation_h
1553 alsa_asoundlib_h
1554 arpa_inet_h
1555 cdio_paranoia_h
1556 cdio_paranoia_paranoia_h
1557 d3d11_h
1558 dispatch_dispatch_h
1559 dev_bktr_ioctl_bt848_h
1560 dev_bktr_ioctl_meteor_h
1561 dev_ic_bt8xx_h
1562 dev_video_bktr_ioctl_bt848_h
1563 dev_video_meteor_ioctl_meteor_h
1564 direct_h
1565 dlfcn_h
1566 dxgidebug_h
1567 dxva_h
1568 gsm_h
1569 io_h
1570 mach_mach_time_h
1571 machine_ioctl_bt848_h
1572 machine_ioctl_meteor_h
1573 malloc_h
1574 poll_h
1575 sndio_h
1576 soundcard_h
1577 stdatomic_h
1578 sys_mman_h
1579 sys_param_h
1580 sys_resource_h
1581 sys_select_h
1582 sys_soundcard_h
1583 sys_time_h
1584 sys_un_h
1585 sys_videoio_h
1586 unistd_h
1587 valgrind_valgrind_h
1588 windows_h
1589 winsock2_h
1590 "
1591
1592 INTRINSICS_LIST="
1593 intrinsics_neon
1594 "
1595
1596 MATH_FUNCS="
1597 atanf
1598 atan2f
1599 cbrtf
1600 cosf
1601 exp2
1602 exp2f
1603 expf
1604 isinf
1605 isnan
1606 ldexpf
1607 llrint
1608 llrintf
1609 log2
1610 log2f
1611 log10f
1612 lrint
1613 lrintf
1614 powf
1615 rint
1616 round
1617 roundf
1618 sinf
1619 trunc
1620 truncf
1621 "
1622
1623 SYSTEM_FUNCS="
1624 aligned_malloc
1625 clock_gettime
1626 closesocket
1627 CommandLineToArgvW
1628 CoTaskMemFree
1629 CryptGenRandom
1630 fcntl
1631 flt_lim
1632 fork
1633 getaddrinfo
1634 gethrtime
1635 getopt
1636 GetProcessAffinityMask
1637 GetProcessMemoryInfo
1638 GetProcessTimes
1639 getrusage
1640 GetSystemTimeAsFileTime
1641 gettimeofday
1642 gmtime_r
1643 inet_aton
1644 isatty
1645 LoadLibrary
1646 localtime_r
1647 mach_absolute_time
1648 MapViewOfFile
1649 memalign
1650 mkstemp
1651 mmap
1652 mprotect
1653 nanosleep
1654 posix_memalign
1655 sched_getaffinity
1656 SetConsoleTextAttribute
1657 setmode
1658 setrlimit
1659 Sleep
1660 strerror_r
1661 sysconf
1662 sysctl
1663 usleep
1664 VirtualAlloc
1665 "
1666
1667 TOOLCHAIN_FEATURES="
1668 as_arch_directive
1669 as_fpu_directive
1670 as_func
1671 as_object_arch
1672 asm_mod_q
1673 attribute_may_alias
1674 attribute_packed
1675 blocks_extension
1676 ebp_available
1677 ebx_available
1678 gnu_as
1679 ibm_asm
1680 inline_asm_labels
1681 pragma_deprecated
1682 symver_asm_label
1683 symver_gnu_asm
1684 vfp_args
1685 xform_asm
1686 xmm_clobbers
1687 "
1688
1689 TYPES_LIST="
1690 CONDITION_VARIABLE_Ptr
1691 CUVIDDECODECREATEINFO_bitDepthMinus8
1692 socklen_t
1693 struct_addrinfo
1694 struct_group_source_req
1695 struct_ip_mreq_source
1696 struct_ipv6_mreq
1697 struct_pollfd
1698 struct_rusage_ru_maxrss
1699 struct_sockaddr_in6
1700 struct_sockaddr_sa_len
1701 struct_sockaddr_storage
1702 struct_v4l2_frmivalenum_discrete
1703 "
1704
1705 HAVE_LIST="
1706 $ARCH_EXT_LIST
1707 $(add_suffix _external $ARCH_EXT_LIST)
1708 $(add_suffix _inline $ARCH_EXT_LIST)
1709 $ARCH_FEATURES
1710 $BUILTIN_LIST
1711 $HAVE_LIST_CMDLINE
1712 $HAVE_LIST_PUB
1713 $HEADERS_LIST
1714 $INTRINSICS_LIST
1715 $MATH_FUNCS
1716 $SYSTEM_FUNCS
1717 $THREADS_LIST
1718 $TOOLCHAIN_FEATURES
1719 $TYPES_LIST
1720 dos_paths
1721 libc_msvcrt
1722 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1723 sdl
1724 section_data_rel_ro
1725 threads
1726 uwp
1727 vaapi_drm
1728 vaapi_x11
1729 vdpau_x11
1730 "
1731
1732 # options emitted with CONFIG_ prefix but not available on the command line
1733 CONFIG_EXTRA="
1734 aandcttables
1735 ac3dsp
1736 adts_header
1737 audio_frame_queue
1738 audiodsp
1739 blockdsp
1740 bswapdsp
1741 cabac
1742 cbs
1743 cbs_h264
1744 cbs_h265
1745 dirac_parse
1746 dvprofile
1747 faandct
1748 faanidct
1749 fdctdsp
1750 flacdsp
1751 fmtconvert
1752 g722dsp
1753 gmp
1754 golomb
1755 gplv3
1756 h263dsp
1757 h264chroma
1758 h264dsp
1759 h264parse
1760 h264pred
1761 h264qpel
1762 hevc_ps
1763 hpeldsp
1764 huffman
1765 huffyuvdsp
1766 huffyuvencdsp
1767 idctdsp
1768 iirfilter
1769 imdct15
1770 intrax8
1771 iso_media
1772 ividsp
1773 jpegtables
1774 lgplv3
1775 libx262
1776 libxcb_shape
1777 lpc
1778 lzf
1779 me_cmp
1780 mpeg_er
1781 mpegaudio
1782 mpegaudiodsp
1783 mpegaudioheader
1784 mpegvideo
1785 mpegvideoenc
1786 mss34dsp
1787 pixblockdsp
1788 qpeldsp
1789 qsv
1790 qsvdec
1791 qsvenc
1792 rangecoder
1793 riffdec
1794 riffenc
1795 rtpdec
1796 rtpenc_chain
1797 rv34dsp
1798 sinewin
1799 snappy
1800 srtp
1801 startcode
1802 texturedsp
1803 texturedspenc
1804 tpeldsp
1805 vaapi_encode
1806 vc1dsp
1807 videodsp
1808 vp3dsp
1809 vp56dsp
1810 vp8dsp
1811 wma_freqs
1812 wmv2dsp
1813 "
1814
1815 CMDLINE_SELECT="
1816 $ARCH_EXT_LIST
1817 $CONFIG_LIST
1818 $HAVE_LIST_CMDLINE
1819 $THREADS_LIST
1820 asm
1821 cross_compile
1822 debug
1823 extra_warnings
1824 logging
1825 lto
1826 optimizations
1827 rpath
1828 "
1829
1830 PATHS_LIST="
1831 bindir
1832 datadir
1833 docdir
1834 incdir
1835 libdir
1836 mandir
1837 prefix
1838 shlibdir
1839 "
1840
1841 CMDLINE_SET="
1842 $PATHS_LIST
1843 ar
1844 arch
1845 as
1846 cc
1847 objcc
1848 cpu
1849 cross_prefix
1850 custom_allocator
1851 dep_cc
1852 env
1853 extra_version
1854 host_cc
1855 host_cflags
1856 host_extralibs
1857 host_ld
1858 host_ldflags
1859 host_os
1860 ignore_tests
1861 ld
1862 logfile
1863 malloc_prefix
1864 nm
1865 optflags
1866 pkg_config
1867 pkg_config_flags
1868 random_seed
1869 samples
1870 sysinclude
1871 sysroot
1872 target_exec
1873 target_os
1874 target_path
1875 target_samples
1876 toolchain
1877 x86asmexe
1878 "
1879
1880 CMDLINE_APPEND="
1881 extra_cflags
1882 extra_objcflags
1883 host_cppflags
1884 "
1885
1886 # code dependency declarations
1887
1888 # architecture extensions
1889
1890 armv5te_deps="arm"
1891 armv6_deps="arm"
1892 armv6t2_deps="arm"
1893 armv8_deps="aarch64"
1894 neon_deps_any="aarch64 arm"
1895 intrinsics_neon_deps="neon"
1896 vfp_deps_any="aarch64 arm"
1897 vfpv3_deps="vfp"
1898
1899 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1900
1901 altivec_deps="ppc"
1902 dcbzl_deps="ppc"
1903 ldbrx_deps="ppc"
1904 ppc4xx_deps="ppc"
1905 vsx_deps="altivec"
1906 power8_deps="vsx"
1907
1908 loongson_deps="mips"
1909 mips32r1_deps="mips32"
1910 mips32r2_deps="mips32"
1911 mips32r6_deps="mips32"
1912 mips64r1_deps="mips64"
1913 mips64r2_deps="mips64"
1914 mips64r6_deps="mips64"
1915
1916 vis_deps="sparc"
1917
1918 cpunop_deps="i686"
1919 x86_64_select="i686"
1920 x86_64_suggest="fast_cmov"
1921
1922 amd3dnow_deps="mmx"
1923 amd3dnowext_deps="amd3dnow"
1924 i686_deps="x86"
1925 mmx_deps="x86"
1926 mmxext_deps="mmx"
1927 sse_deps="mmxext"
1928 sse2_deps="sse"
1929 sse3_deps="sse2"
1930 ssse3_deps="sse3"
1931 sse4_deps="ssse3"
1932 sse42_deps="sse4"
1933 avx_deps="sse42"
1934 xop_deps="avx"
1935 fma3_deps="avx"
1936 fma4_deps="avx"
1937 avx2_deps="avx"
1938
1939 mmx_external_deps="x86asm"
1940 mmx_inline_deps="inline_asm x86"
1941 mmx_suggest="mmx_external mmx_inline"
1942
1943 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1944 eval dep=\$${ext}_deps
1945 eval ${ext}_external_deps='"${dep}_external"'
1946 eval ${ext}_inline_deps='"${dep}_inline"'
1947 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1948 done
1949
1950 aligned_stack_if_any="aarch64 ppc x86"
1951 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1952 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1953 fast_unaligned_if_any="aarch64 ppc x86"
1954 simd_align_16_if_any="altivec neon sse"
1955 simd_align_32_if_any="avx"
1956
1957 # system capabilities
1958 symver_if_any="symver_asm_label symver_gnu_asm"
1959 valgrind_backtrace_conflict="optimizations"
1960 valgrind_backtrace_deps="valgrind_valgrind_h"
1961
1962 # threading support
1963 atomics_gcc_if="sync_val_compare_and_swap"
1964 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1965 atomics_win32_if="MemoryBarrier"
1966 atomics_native_if_any="$ATOMICS_LIST"
1967 w32threads_deps="atomics_native"
1968 threads_if_any="$THREADS_LIST"
1969
1970 # subsystems
1971 cbs_h264_select="cbs golomb"
1972 cbs_h265_select="cbs golomb"
1973 dct_select="rdft"
1974 dirac_parse_select="golomb"
1975 error_resilience_select="me_cmp"
1976 faandct_deps="faan"
1977 faandct_select="fdctdsp"
1978 faanidct_deps="faan"
1979 faanidct_select="idctdsp"
1980 h264dsp_select="startcode"
1981 hevc_ps_select="golomb"
1982 intrax8_select="blockdsp idctdsp"
1983 mdct_select="fft"
1984 rdft_select="fft"
1985 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1986 mpeg_er_select="error_resilience"
1987 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1988 mpegaudiodsp_select="dct"
1989 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1990 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1991 vc1dsp_select="h264chroma qpeldsp startcode"
1992
1993 # decoders / encoders
1994 aac_decoder_select="adts_header imdct15 mdct sinewin"
1995 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1996 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1997 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1998 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1999 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2000 adpcm_g722_decoder_select="g722dsp"
2001 adpcm_g722_encoder_select="g722dsp"
2002 aic_decoder_select="golomb idctdsp"
2003 alac_encoder_select="lpc"
2004 als_decoder_select="bswapdsp"
2005 amrnb_decoder_select="lsp"
2006 amrwb_decoder_select="lsp"
2007 amv_decoder_select="sp5x_decoder"
2008 ape_decoder_select="bswapdsp"
2009 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2010 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2011 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2012 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2013 atrac1_decoder_select="mdct sinewin"
2014 atrac3_decoder_select="mdct"
2015 atrac3p_decoder_select="mdct sinewin"
2016 bink_decoder_select="blockdsp hpeldsp"
2017 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2018 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2019 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2020 clearvideo_decoder_select="idctdsp"
2021 cllc_decoder_select="bswapdsp"
2022 comfortnoise_encoder_select="lpc"
2023 cook_decoder_select="audiodsp mdct sinewin"
2024 cscd_decoder_select="lzo"
2025 cscd_decoder_suggest="zlib"
2026 dca_decoder_select="fmtconvert mdct"
2027 dds_decoder_select="texturedsp"
2028 dnxhd_decoder_select="blockdsp idctdsp"
2029 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2030 dvvideo_decoder_select="dvprofile idctdsp"
2031 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2032 dxa_decoder_deps="zlib"
2033 dxv_decoder_select="lzf texturedsp"
2034 eac3_decoder_select="ac3_decoder"
2035 eac3_encoder_select="ac3_encoder"
2036 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2037 eatgq_decoder_select="aandcttables idctdsp"
2038 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2039 exr_decoder_deps="zlib"
2040 ffv1_decoder_select="rangecoder"
2041 ffv1_encoder_select="rangecoder"
2042 ffvhuff_decoder_select="huffyuv_decoder"
2043 ffvhuff_encoder_select="huffyuv_encoder"
2044 fic_decoder_select="golomb"
2045 flac_decoder_select="flacdsp"
2046 flac_encoder_select="bswapdsp flacdsp lpc"
2047 flashsv_decoder_deps="zlib"
2048 flashsv_encoder_deps="zlib"
2049 flashsv2_decoder_deps="zlib"
2050 flv_decoder_select="h263_decoder"
2051 flv_encoder_select="h263_encoder"
2052 fourxm_decoder_select="blockdsp bswapdsp"
2053 fraps_decoder_select="bswapdsp huffman"
2054 g2m_decoder_deps="zlib"
2055 g2m_decoder_select="blockdsp idctdsp jpegtables"
2056 h261_decoder_select="mpeg_er mpegvideo"
2057 h261_encoder_select="aandcttables mpegvideoenc"
2058 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2059 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2060 h263i_decoder_select="h263_decoder"
2061 h263p_encoder_select="h263_encoder"
2062 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2063 h264_decoder_suggest="error_resilience"
2064 hap_decoder_select="snappy texturedsp"
2065 hap_encoder_deps="libsnappy"
2066 hap_encoder_select="texturedspenc"
2067 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2068 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2069 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2070 iac_decoder_select="imc_decoder"
2071 imc_decoder_select="bswapdsp fft mdct sinewin"
2072 indeo3_decoder_select="hpeldsp"
2073 indeo4_decoder_select="ividsp"
2074 indeo5_decoder_select="ividsp"
2075 interplay_video_decoder_select="hpeldsp"
2076 jpegls_decoder_select="mjpeg_decoder"
2077 jv_decoder_select="blockdsp"
2078 lagarith_decoder_select="huffyuvdsp"
2079 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2080 magicyuv_decoder_select="huffyuvdsp"
2081 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2082 metasound_decoder_select="lsp mdct sinewin"
2083 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2084 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2085 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2086 mjpegb_decoder_select="mjpeg_decoder"
2087 mlp_decoder_select="mlp_parser"
2088 motionpixels_decoder_select="bswapdsp"
2089 mp1_decoder_select="mpegaudio"
2090 mp1float_decoder_select="mpegaudio"
2091 mp2_decoder_select="mpegaudio"
2092 mp2float_decoder_select="mpegaudio"
2093 mp3_decoder_select="mpegaudio"
2094 mp3adu_decoder_select="mpegaudio"
2095 mp3adufloat_decoder_select="mpegaudio"
2096 mp3float_decoder_select="mpegaudio"
2097 mp3on4_decoder_select="mpegaudio"
2098 mp3on4float_decoder_select="mpegaudio"
2099 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2100 mpc8_decoder_select="mpegaudiodsp"
2101 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2102 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2103 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2104 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2105 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2106 mpeg4_encoder_select="h263_encoder"
2107 msa1_decoder_select="mss34dsp"
2108 msmpeg4v1_decoder_select="h263_decoder"
2109 msmpeg4v2_decoder_select="h263_decoder"
2110 msmpeg4v2_encoder_select="h263_encoder"
2111 msmpeg4v3_decoder_select="h263_decoder"
2112 msmpeg4v3_encoder_select="h263_encoder"
2113 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2114 mts2_decoder_select="mss34dsp"
2115 mxpeg_decoder_select="mjpeg_decoder"
2116 nellymoser_decoder_select="mdct sinewin"
2117 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2118 nuv_decoder_select="idctdsp lzo"
2119 on2avc_decoder_select="mdct"
2120 opus_decoder_deps="avresample"
2121 opus_decoder_select="imdct15"
2122 png_decoder_deps="zlib"
2123 png_encoder_deps="zlib"
2124 png_encoder_select="huffyuvencdsp"
2125 prores_decoder_select="idctdsp"
2126 prores_encoder_select="fdctdsp"
2127 qcelp_decoder_select="lsp"
2128 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2129 ra_144_encoder_select="audio_frame_queue lpc"
2130 ralf_decoder_select="golomb"
2131 rscc_decoder_deps="zlib"
2132 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2133 rv10_encoder_select="h263_encoder"
2134 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2135 rv20_encoder_select="h263_encoder"
2136 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2137 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2138 screenpresso_decoder_deps="zlib"
2139 sipr_decoder_select="lsp"
2140 sp5x_decoder_select="mjpeg_decoder"
2141 svq1_decoder_select="hpeldsp"
2142 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2143 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2144 svq3_decoder_suggest="zlib"
2145 tak_decoder_select="audiodsp"
2146 tdsc_decoder_deps="zlib"
2147 tdsc_decoder_select="mjpeg_decoder"
2148 theora_decoder_select="vp3_decoder"
2149 thp_decoder_select="mjpeg_decoder"
2150 tiff_decoder_suggest="zlib"
2151 tiff_encoder_suggest="zlib"
2152 truehd_decoder_select="mlp_decoder"
2153 truemotion2_decoder_select="bswapdsp"
2154 truespeech_decoder_select="bswapdsp"
2155 tscc_decoder_deps="zlib"
2156 txd_decoder_select="texturedsp"
2157 twinvq_decoder_select="mdct lsp sinewin"
2158 utvideo_decoder_select="bswapdsp huffyuvdsp"
2159 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2160 vble_decoder_select="huffyuvdsp"
2161 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2162 vc1image_decoder_select="vc1_decoder"
2163 vorbis_decoder_select="mdct"
2164 vorbis_encoder_select="mdct"
2165 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2166 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2167 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2168 vp6a_decoder_select="vp6_decoder"
2169 vp6f_decoder_select="vp6_decoder"
2170 vp7_decoder_select="h264pred videodsp vp8dsp"
2171 vp8_decoder_select="h264pred videodsp vp8dsp"
2172 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2173 webp_decoder_select="vp8_decoder"
2174 wmapro_decoder_select="mdct sinewin wma_freqs"
2175 wmav1_decoder_select="mdct sinewin wma_freqs"
2176 wmav1_encoder_select="mdct sinewin wma_freqs"
2177 wmav2_decoder_select="mdct sinewin wma_freqs"
2178 wmav2_encoder_select="mdct sinewin wma_freqs"
2179 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2180 wmv1_decoder_select="h263_decoder"
2181 wmv1_encoder_select="h263_encoder"
2182 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2183 wmv2_encoder_select="h263_encoder wmv2dsp"
2184 wmv3_decoder_select="vc1_decoder"
2185 wmv3image_decoder_select="wmv3_decoder"
2186 zerocodec_decoder_deps="zlib"
2187 zlib_decoder_deps="zlib"
2188 zlib_encoder_deps="zlib"
2189 zmbv_decoder_deps="zlib"
2190 zmbv_encoder_deps="zlib"
2191
2192 # hardware accelerators
2193 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2194 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2195 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2196 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2197
2198 h263_vaapi_hwaccel_deps="vaapi"
2199 h263_vaapi_hwaccel_select="h263_decoder"
2200 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2201 h264_cuvid_hwaccel_select="h264_decoder"
2202 h264_d3d11va_hwaccel_deps="d3d11va"
2203 h264_d3d11va_hwaccel_select="h264_decoder"
2204 h264_d3d11va2_hwaccel_deps="d3d11va"
2205 h264_d3d11va2_hwaccel_select="h264_decoder"
2206 h264_dxva2_hwaccel_deps="dxva2"
2207 h264_dxva2_hwaccel_select="h264_decoder"
2208 h264_mmal_hwaccel_deps="mmal"
2209 h264_qsv_hwaccel_deps="libmfx"
2210 h264_vaapi_hwaccel_deps="vaapi"
2211 h264_vaapi_hwaccel_select="h264_decoder"
2212 h264_vda_hwaccel_deps="vda"
2213 h264_vda_hwaccel_select="h264_decoder"
2214 h264_vda_old_hwaccel_deps="vda"
2215 h264_vda_old_hwaccel_select="h264_decoder"
2216 h264_vdpau_hwaccel_deps="vdpau"
2217 h264_vdpau_hwaccel_select="h264_decoder"
2218 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2219 hevc_cuvid_hwaccel_select="hevc_decoder"
2220 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2221 hevc_d3d11va_hwaccel_select="hevc_decoder"
2222 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2223 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2224 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2225 hevc_dxva2_hwaccel_select="hevc_decoder"
2226 hevc_qsv_hwaccel_deps="libmfx"
2227 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2228 hevc_vaapi_hwaccel_select="hevc_decoder"
2229 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2230 hevc_vdpau_hwaccel_select="hevc_decoder"
2231 mpeg1_vdpau_hwaccel_deps="vdpau"
2232 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2233 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2234 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2235 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2236 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_dxva2_hwaccel_deps="dxva2"
2238 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_mmal_hwaccel_deps="mmal"
2240 mpeg2_qsv_hwaccel_deps="libmfx"
2241 mpeg2_vaapi_hwaccel_deps="vaapi"
2242 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2243 mpeg2_vdpau_hwaccel_deps="vdpau"
2244 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2245 mpeg4_vaapi_hwaccel_deps="vaapi"
2246 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2247 mpeg4_vdpau_hwaccel_deps="vdpau"
2248 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2249 vc1_d3d11va_hwaccel_deps="d3d11va"
2250 vc1_d3d11va_hwaccel_select="vc1_decoder"
2251 vc1_d3d11va2_hwaccel_deps="d3d11va"
2252 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2253 vc1_dxva2_hwaccel_deps="dxva2"
2254 vc1_dxva2_hwaccel_select="vc1_decoder"
2255 vc1_mmal_hwaccel_deps="mmal"
2256 vc1_qsv_hwaccel_deps="libmfx"
2257 vc1_vaapi_hwaccel_deps="vaapi"
2258 vc1_vaapi_hwaccel_select="vc1_decoder"
2259 vc1_vdpau_hwaccel_deps="vdpau"
2260 vc1_vdpau_hwaccel_select="vc1_decoder"
2261 vp8_qsv_hwaccel_deps="libmfx"
2262 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2263 vp8_vaapi_hwaccel_select="vp8_decoder"
2264 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2265 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2266 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2267 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2268 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2269
2270 # hardware-accelerated codecs
2271 nvenc_deps_any="libdl LoadLibrary"
2272 omx_deps="libdl pthreads"
2273 omx_rpi_select="omx"
2274 qsv_deps="libmfx"
2275 qsvdec_select="qsv"
2276 qsvenc_select="qsv"
2277 vaapi_encode_deps="vaapi"
2278
2279 hwupload_cuda_filter_deps="cuda"
2280 scale_npp_filter_deps="cuda libnpp"
2281
2282 h264_mmal_decoder_deps="mmal"
2283 h264_nvenc_encoder_deps="nvenc"
2284 h264_omx_encoder_deps="omx"
2285 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2286 h264_qsv_encoder_select="qsvenc"
2287 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2288 h264_vaapi_encoder_select="vaapi_encode golomb"
2289 hevc_nvenc_encoder_deps="nvenc"
2290 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2291 hevc_qsv_encoder_select="hevc_ps qsvenc"
2292 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2293 hevc_vaapi_encoder_select="vaapi_encode golomb"
2294 mjpeg_qsv_encoder_deps="libmfx"
2295 mjpeg_qsv_encoder_select="qsvenc"
2296 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2297 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2298 mpeg2_mmal_decoder_deps="mmal"
2299 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2300 mpeg2_qsv_encoder_select="qsvenc"
2301 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2302 mpeg2_vaapi_encoder_select="vaapi_encode"
2303 mpeg4_omx_encoder_deps="omx"
2304 vc1_mmal_decoder_deps="mmal"
2305 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2306 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2307 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2308 vp8_vaapi_encoder_select="vaapi_encode"
2309 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2310 vp9_vaapi_encoder_select="vaapi_encode"
2311
2312 nvenc_h264_encoder_select="h264_nvenc_encoder"
2313 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2314
2315 # parsers
2316 aac_parser_select="adts_header"
2317 h264_parser_select="golomb h264dsp h264parse"
2318 hevc_parser_select="hevc_ps"
2319 mpegaudio_parser_select="mpegaudioheader"
2320 mpegvideo_parser_select="mpegvideo"
2321 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2322 vc1_parser_select="vc1dsp"
2323
2324 # bitstream_filters
2325 aac_adtstoasc_bsf_select="adts_header"
2326 mjpeg2jpeg_bsf_select="jpegtables"
2327
2328 # external libraries
2329 avisynth_deps="LoadLibrary"
2330 avxsynth_deps="libdl"
2331 avisynth_demuxer_deps_any="avisynth avxsynth"
2332 avisynth_demuxer_select="riffdec"
2333 libdcadec_decoder_deps="libdcadec"
2334 libfaac_encoder_deps="libfaac"
2335 libfaac_encoder_select="audio_frame_queue"
2336 libfdk_aac_decoder_deps="libfdk_aac"
2337 libfdk_aac_encoder_deps="libfdk_aac"
2338 libfdk_aac_encoder_select="audio_frame_queue"
2339 libgsm_decoder_deps="libgsm"
2340 libgsm_encoder_deps="libgsm"
2341 libgsm_ms_decoder_deps="libgsm"
2342 libgsm_ms_encoder_deps="libgsm"
2343 libilbc_decoder_deps="libilbc"
2344 libilbc_encoder_deps="libilbc"
2345 libkvazaar_encoder_deps="libkvazaar"
2346 libmp3lame_encoder_deps="libmp3lame"
2347 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2348 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2349 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2350 libopencore_amrnb_encoder_select="audio_frame_queue"
2351 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2352 libopenh264_decoder_deps="libopenh264"
2353 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2354 libopenh264_encoder_deps="libopenh264"
2355 libopenjpeg_decoder_deps="libopenjpeg"
2356 libopenjpeg_encoder_deps="libopenjpeg"
2357 libopus_decoder_deps="libopus"
2358 libopus_encoder_deps="libopus"
2359 libopus_encoder_select="audio_frame_queue"
2360 libschroedinger_decoder_deps="libschroedinger"
2361 libschroedinger_encoder_deps="libschroedinger"
2362 libspeex_decoder_deps="libspeex"
2363 libspeex_encoder_deps="libspeex"
2364 libspeex_encoder_select="audio_frame_queue"
2365 libtheora_encoder_deps="libtheora"
2366 libtwolame_encoder_deps="libtwolame"
2367 libvo_aacenc_encoder_deps="libvo_aacenc"
2368 libvo_aacenc_encoder_select="audio_frame_queue"
2369 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2370 libvorbis_encoder_deps="libvorbis"
2371 libvorbis_encoder_select="audio_frame_queue"
2372 libvpx_vp8_decoder_deps="libvpx"
2373 libvpx_vp8_encoder_deps="libvpx"
2374 libvpx_vp9_decoder_deps="libvpx"
2375 libvpx_vp9_encoder_deps="libvpx"
2376 libwavpack_encoder_deps="libwavpack"
2377 libwavpack_encoder_select="audio_frame_queue"
2378 libwebp_encoder_deps="libwebp"
2379 libx262_encoder_deps="libx262"
2380 libx264_encoder_deps="libx264"
2381 libx265_encoder_deps="libx265"
2382 libxavs_encoder_deps="libxavs"
2383 libxvid_encoder_deps="libxvid mkstemp"
2384
2385 # demuxers / muxers
2386 ac3_demuxer_select="ac3_parser"
2387 asf_demuxer_select="riffdec"
2388 asf_muxer_select="riffenc"
2389 asf_stream_muxer_select="asf_muxer"
2390 avi_demuxer_select="iso_media riffdec"
2391 avi_muxer_select="riffenc"
2392 caf_demuxer_select="iso_media riffdec"
2393 dash_muxer_select="mp4_muxer"
2394 dirac_demuxer_select="dirac_parser"
2395 dv_demuxer_select="dvprofile"
2396 dv_muxer_select="dvprofile"
2397 dxa_demuxer_select="riffdec"
2398 eac3_demuxer_select="ac3_parser"
2399 f4v_muxer_select="mov_muxer"
2400 flac_demuxer_select="flac_parser"
2401 hds_muxer_select="flv_muxer"
2402 hls_muxer_select="mpegts_muxer"
2403 ipod_muxer_select="mov_muxer"
2404 ismv_muxer_select="mov_muxer"
2405 matroska_audio_muxer_select="matroska_muxer"
2406 matroska_demuxer_select="iso_media riffdec"
2407 matroska_demuxer_suggest="bzlib lzo zlib"
2408 matroska_muxer_select="iso_media riffenc"
2409 mmf_muxer_select="riffenc"
2410 mov_demuxer_select="iso_media riffdec"
2411 mov_demuxer_suggest="zlib"
2412 mov_muxer_select="iso_media riffenc rtpenc_chain"
2413 mp3_demuxer_select="mpegaudio_parser"
2414 mp3_muxer_select="mpegaudioheader"
2415 mp4_muxer_select="mov_muxer"
2416 mpegts_demuxer_select="iso_media"
2417 mpegts_muxer_select="adts_muxer latm_muxer"
2418 mpegtsraw_demuxer_select="mpegts_demuxer"
2419 mxf_d10_muxer_select="mxf_muxer"
2420 nut_muxer_select="riffenc"
2421 nuv_demuxer_select="riffdec"
2422 oga_muxer_select="ogg_muxer"
2423 ogg_demuxer_select="dirac_parse"
2424 opus_muxer_select="ogg_muxer"
2425 psp_muxer_select="mov_muxer"
2426 rtp_demuxer_select="sdp_demuxer"
2427 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2428 rtsp_demuxer_select="http_protocol rtpdec"
2429 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2430 sap_demuxer_select="sdp_demuxer"
2431 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2432 sdp_demuxer_select="rtpdec"
2433 smoothstreaming_muxer_select="ismv_muxer"
2434 spdif_demuxer_select="adts_header"
2435 spdif_muxer_select="adts_header"
2436 spx_muxer_select="ogg_muxer"
2437 swf_demuxer_suggest="zlib"
2438 tak_demuxer_select="tak_parser"
2439 tg2_muxer_select="mov_muxer"
2440 tgp_muxer_select="mov_muxer"
2441 w64_demuxer_select="wav_demuxer"
2442 wav_demuxer_select="riffdec"
2443 wav_muxer_select="riffenc"
2444 webm_muxer_select="iso_media riffenc"
2445 wtv_demuxer_select="mpegts_demuxer riffdec"
2446 xmv_demuxer_select="riffdec"
2447 xwma_demuxer_select="riffdec"
2448
2449 # indevs / outdevs
2450 alsa_indev_deps="alsa"
2451 alsa_outdev_deps="alsa"
2452 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2453 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2454 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2455 dv1394_indev_deps="dv1394"
2456 dv1394_indev_select="dv_demuxer"
2457 fbdev_indev_deps="linux_fb_h"
2458 jack_indev_deps="libjack"
2459 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2460 libcdio_indev_deps="libcdio"
2461 libdc1394_indev_deps="libdc1394"
2462 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2463 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2464 pulse_indev_deps="libpulse"
2465 sndio_indev_deps="sndio"
2466 sndio_outdev_deps="sndio"
2467 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2468 vfwcap_indev_deps="vfw32 vfwcap_defines"
2469 xcbgrab_indev_deps="libxcb libxcb_shape"
2470 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2471
2472 # protocols
2473 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2474 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2475 ffrtmpcrypt_protocol_select="tcp_protocol"
2476 ffrtmphttp_protocol_conflict="librtmp_protocol"
2477 ffrtmphttp_protocol_select="http_protocol"
2478 gopher_protocol_select="network"
2479 http_protocol_select="tcp_protocol"
2480 http_protocol_suggest="zlib"
2481 httpproxy_protocol_select="tcp_protocol"
2482 httpproxy_protocol_suggest="zlib"
2483 https_protocol_select="tls_protocol"
2484 https_protocol_suggest="zlib"
2485 icecast_protocol_select="http_protocol"
2486 librtmp_protocol_deps="librtmp"
2487 librtmpe_protocol_deps="librtmp"
2488 librtmps_protocol_deps="librtmp"
2489 librtmpt_protocol_deps="librtmp"
2490 librtmpte_protocol_deps="librtmp"
2491 mmsh_protocol_select="http_protocol"
2492 mmst_protocol_select="network"
2493 rtmp_protocol_conflict="librtmp_protocol"
2494 rtmp_protocol_select="tcp_protocol"
2495 rtmp_protocol_suggest="zlib"
2496 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2497 rtmpe_protocol_suggest="zlib"
2498 rtmps_protocol_conflict="librtmp_protocol"
2499 rtmps_protocol_select="tls_protocol"
2500 rtmps_protocol_suggest="zlib"
2501 rtmpt_protocol_select="ffrtmphttp_protocol"
2502 rtmpt_protocol_suggest="zlib"
2503 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2504 rtmpte_protocol_suggest="zlib"
2505 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2506 rtmpts_protocol_suggest="zlib"
2507 rtp_protocol_select="udp_protocol"
2508 sctp_protocol_deps="struct_sctp_event_subscribe"
2509 sctp_protocol_select="network"
2510 srtp_protocol_select="rtp_protocol srtp"
2511 tcp_protocol_select="network"
2512 tls_protocol_deps_any="gnutls openssl"
2513 tls_protocol_select="tcp_protocol"
2514 udp_protocol_select="network"
2515 unix_protocol_deps="sys_un_h"
2516 unix_protocol_select="network"
2517
2518 # filters
2519 asyncts_filter_deps="avresample"
2520 blackframe_filter_deps="gpl"
2521 boxblur_filter_deps="gpl"
2522 bs2b_filter_deps="libbs2b"
2523 cropdetect_filter_deps="gpl"
2524 deinterlace_qsv_filter_deps="libmfx"
2525 deinterlace_vaapi_filter_deps="vaapi"
2526 delogo_filter_deps="gpl"
2527 drawtext_filter_deps="libfreetype"
2528 drawtext_filter_suggest="libfontconfig"
2529 frei0r_filter_deps="frei0r libdl"
2530 frei0r_src_filter_deps="frei0r libdl"
2531 hdcd_filter_deps="libhdcd"
2532 hqdn3d_filter_deps="gpl"
2533 interlace_filter_deps="gpl"
2534 movie_filter_deps="avcodec avformat"
2535 ocv_filter_deps="libopencv"
2536 resample_filter_deps="avresample"
2537 scale_filter_deps="swscale"
2538 scale_qsv_filter_deps="libmfx"
2539 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2540
2541 # examples
2542 decode_audio_example_deps="avcodec avutil"
2543 decode_video_example_deps="avcodec avutil"
2544 encode_audio_example_deps="avcodec avutil"
2545 encode_video_example_deps="avcodec avutil"
2546 filter_audio_example_deps="avfilter avutil"
2547 metadata_example_deps="avformat avutil"
2548 output_example_deps="avcodec avformat avresample avutil swscale"
2549 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2550 transcode_aac_example_deps="avcodec avformat avresample"
2551
2552 # EXTRALIBS_LIST
2553 cpu_init_extralibs="pthreads_extralibs"
2554 cws2fws_extralibs="zlib_extralibs"
2555
2556 # libraries, in linking order
2557 avcodec_deps="avutil"
2558 avcodec_select="null_bsf"
2559 avdevice_deps="avformat avcodec avutil"
2560 avfilter_deps="avutil"
2561 avformat_deps="avcodec avutil"
2562 avformat_suggest="network"
2563 avresample_deps="avutil"
2564 swscale_deps="avutil"
2565
2566 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2567 avdevice_extralibs="libm_extralibs"
2568 avformat_extralibs="libm_extralibs"
2569 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2570 avresample_extralibs="libm_extralibs"
2571 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2572 swscale_extralibs="libm_extralibs"
2573
2574 # programs
2575 avconv_deps="avcodec avfilter avformat avresample swscale"
2576 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2577 fps_filter null_filter resample_filter scale_filter
2578 trim_filter"
2579 avconv_suggest="psapi shell32"
2580 avplay_deps="avcodec avfilter avformat avresample sdl"
2581 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2582 avplay_suggest="shell32"
2583 avprobe_deps="avcodec avformat"
2584 avprobe_suggest="shell32"
2585
2586 # documentation
2587 pod2man_deps="doc"
2588 texi2html_deps="doc"
2589
2590 # default parameters
2591
2592 logfile="avbuild/config.log"
2593
2594 # installation paths
2595 prefix_default="/usr/local"
2596 bindir_default='${prefix}/bin'
2597 datadir_default='${prefix}/share/avconv'
2598 docdir_default='${prefix}/share/doc/libav'
2599 incdir_default='${prefix}/include'
2600 libdir_default='${prefix}/lib'
2601 mandir_default='${prefix}/share/man'
2602 shlibdir_default="$libdir_default"
2603
2604 # toolchain
2605 ar_default="ar"
2606 cc_default="gcc"
2607 host_cc_default="gcc"
2608 x86asmexe_default="nasm"
2609 ln_s="ln -s -f"
2610 nm_default="nm -g"
2611 pkg_config_default=pkg-config
2612 ranlib="ranlib"
2613 strip="strip"
2614 version_script='--version-script'
2615
2616 # machine
2617 arch_default=$(uname -m)
2618 cpu="generic"
2619 intrinsics="none"
2620
2621 # OS
2622 target_os_default=$(tolower $(uname -s))
2623 host_os=$target_os_default
2624
2625 # configurable options
2626 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2627
2628 enable asm
2629 enable debug
2630 enable doc
2631 enable faan faandct faanidct
2632 enable optimizations
2633 enable safe_bitstream_reader
2634 enable static
2635 enable swscale_alpha
2636 enable valgrind_backtrace
2637
2638 # By default, enable only those hwaccels that have no external dependencies.
2639 enable d3d11va dxva2 vda vdpau
2640
2641 # internal components are enabled by default
2642 enable $EXTRALIBS_LIST
2643
2644 # Avoid external, non-system, libraries getting enabled by dependency resolution
2645 disable $EXTERNAL_LIBRARY_LIST
2646
2647 # build settings
2648 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2649 LIBPREF="lib"
2650 LIBSUF=".a"
2651 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2652 SLIBPREF="lib"
2653 SLIBSUF=".so"
2654 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2655 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2656 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2657 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2658 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2659 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2660 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2661
2662 asflags_filter=echo
2663 cflags_filter=echo
2664 ldflags_filter=echo
2665
2666 AS_C='-c'
2667 AS_O='-o $@'
2668 CC_C='-c'
2669 CC_E='-E -o $@'
2670 CC_O='-o $@'
2671 OBJCC_C='-c'
2672 OBJCC_E='-E -o $@'
2673 OBJCC_O='-o $@'
2674 X86ASM_O='-o $@'
2675 LD_O='-o $@'
2676 LD_LIB='-l%'
2677 LD_PATH='-L'
2678 HOSTCC_C='-c'
2679 HOSTCC_E='-E -o $@'
2680 HOSTCC_O='-o $@'
2681 HOSTLD_O='-o $@'
2682
2683 host_extralibs='-lm'
2684 host_cflags_filter=echo
2685 host_ldflags_filter=echo
2686
2687 target_path='$(CURDIR)'
2688
2689 # since the object filename is not given with the -MM flag, the compiler
2690 # is only able to print the basename, and we must add the path ourselves
2691 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2692 DEPFLAGS='-MM'
2693
2694 mkdir -p avbuild
2695
2696 # find source path
2697 if test -f configure; then
2698 source_path=.
2699 else
2700 source_path=$(cd $(dirname "$0"); pwd)
2701 echo "$source_path" | grep -q '[[:blank:]]' &&
2702 die "Out of tree builds are impossible with whitespace in source path."
2703 test -e "$source_path/config.h" &&
2704 die "Out of tree builds are impossible with config.h in source dir."
2705 fi
2706
2707 for v in "$@"; do
2708 r=${v#*=}
2709 l=${v%"$r"}
2710 r=$(sh_quote "$r")
2711 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2712 done
2713
2714 find_things(){
2715 thing=$1
2716 pattern=$2
2717 file=$source_path/$3
2718 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2719 }
2720
2721 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2722 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2723 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2724 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2725 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2726 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2727 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2728 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2729 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2730
2731 find_things_extern(){
2732 thing=$1
2733 pattern=$2
2734 file=$source_path/$3
2735 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2736 }
2737
2738 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2739 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2740
2741 AVCODEC_COMPONENTS_LIST="
2742 $BSF_LIST
2743 $DECODER_LIST
2744 $ENCODER_LIST
2745 $HWACCEL_LIST
2746 $PARSER_LIST
2747 "
2748
2749 AVDEVICE_COMPONENTS_LIST="
2750 $INDEV_LIST
2751 $OUTDEV_LIST
2752 "
2753
2754 AVFILTER_COMPONENTS_LIST="
2755 $FILTER_LIST
2756 "
2757
2758 AVFORMAT_COMPONENTS_LIST="
2759 $DEMUXER_LIST
2760 $MUXER_LIST
2761 $PROTOCOL_LIST
2762 "
2763
2764 ALL_COMPONENTS="
2765 $AVCODEC_COMPONENTS_LIST
2766 $AVDEVICE_COMPONENTS_LIST
2767 $AVFILTER_COMPONENTS_LIST
2768 $AVFORMAT_COMPONENTS_LIST
2769 "
2770
2771 for n in $COMPONENT_LIST; do
2772 v=$(toupper ${n%s})_LIST
2773 eval enable \$$v
2774 eval ${n}_if_any="\$$v"
2775 done
2776
2777 enable $ARCH_EXT_LIST
2778
2779 die_unknown(){
2780 echo "Unknown option \"$1\"."
2781 echo "See $0 --help for available options."
2782 exit 1
2783 }
2784
2785 print_3_columns() {
2786 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2787 }
2788
2789 show_list() {
2790 suffix=_$1
2791 shift
2792 echo $* | sed s/$suffix//g | print_3_columns
2793 exit 0
2794 }
2795
2796 rand_list(){
2797 IFS=', '
2798 set -- $*
2799 unset IFS
2800 for thing; do
2801 comp=${thing%:*}
2802 prob=${thing#$comp}
2803 prob=${prob#:}
2804 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2805 echo "prob ${prob:-0.5}"
2806 printf '%s\n' $comp
2807 done
2808 }
2809
2810 do_random(){
2811 action=$1
2812 shift
2813 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2814 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2815 }
2816
2817 for opt do
2818 optval="${opt#*=}"
2819 case "$opt" in
2820 --extra-ldflags=*)
2821 add_ldflags $optval
2822 ;;
2823 --extra-ldexeflags=*)
2824 add_ldexeflags $optval
2825 ;;
2826 --extra-ldsoflags=*)
2827 add_ldsoflags $optval
2828 ;;
2829 --extra-libs=*)
2830 add_extralibs $optval
2831 ;;
2832 --disable-devices)
2833 disable $INDEV_LIST $OUTDEV_LIST
2834 ;;
2835 --enable-debug=*)
2836 debuglevel="$optval"
2837 ;;
2838 --disable-programs)
2839 disable $PROGRAM_LIST
2840 ;;
2841 --disable-everything)
2842 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2843 ;;
2844 --disable-all)
2845 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2846 disable $LIBRARY_LIST $PROGRAM_LIST doc
2847 ;;
2848 --enable-random|--disable-random)
2849 action=${opt%%-random}
2850 do_random ${action#--} $COMPONENT_LIST
2851 ;;
2852 --enable-random=*|--disable-random=*)
2853 action=${opt%%-random=*}
2854 do_random ${action#--} $optval
2855 ;;
2856 --enable-*=*|--disable-*=*)
2857 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2858 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2859 eval list=\$$(toupper $thing)_LIST
2860 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2861 $action $(filter "$name" $list)
2862 ;;
2863 --enable-avserver|--disable-avserver*)
2864 warn "avserver has been removed, the ${opt} option is only"\
2865 "provided for compatibility and will be removed in the future"
2866 ;;
2867 --enable-yasm|--disable-yasm)
2868 warn "The ${opt} option is only provided for compatibility and will be\n"\
2869 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2870 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2871 ;;
2872 --enable-?*|--disable-?*)
2873 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2874 if is_in $option $COMPONENT_LIST; then
2875 test $action = disable && action=unset
2876 eval $action \$$(toupper ${option%s})_LIST
2877 elif is_in $option $CMDLINE_SELECT; then
2878 $action $option
2879 else
2880 die_unknown $opt
2881 fi
2882 ;;
2883 --list-*)
2884 NAME="${opt#--list-}"
2885 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2886 NAME=${NAME%s}
2887 eval show_list $NAME \$$(toupper $NAME)_LIST
2888 ;;
2889 --help|-h) show_help
2890 ;;
2891 --quiet|-q) quiet=yes
2892 ;;
2893 *)
2894 optname="${opt%%=*}"
2895 optname="${optname#--}"
2896 optname=$(echo "$optname" | sed 's/-/_/g')
2897 if is_in $optname $CMDLINE_SET; then
2898 eval $optname='$optval'
2899 elif is_in $optname $CMDLINE_APPEND; then
2900 append $optname "$optval"
2901 else
2902 die_unknown $opt
2903 fi
2904 ;;
2905 esac
2906 done
2907
2908 for e in $env; do
2909 eval "export $e"
2910 done
2911
2912 disabled logging && logfile=/dev/null
2913
2914 # Die early if licensing-related configure options are incompatible.
2915 die_license_disabled() {
2916 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2917 }
2918
2919 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2920 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2921 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2922
2923 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2924
2925 enabled_all gnutls openssl &&
2926 die "GnuTLS and OpenSSL must not be enabled at the same time."
2927
2928 # Disable all the library-specific components if the library itself
2929 # is disabled, see AVCODEC_LIST and following _LIST variables.
2930
2931 disable_components(){
2932 disabled ${1} && disable $(
2933 eval components="\$$(toupper ${1})_COMPONENTS"
2934 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2935 )
2936 }
2937
2938 map 'disable_components $v' $LIBRARY_LIST
2939
2940 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2941 set >> $logfile
2942
2943 case "$toolchain" in
2944 *-asan)
2945 cc_default="${toolchain%-asan}"
2946 add_cflags -fsanitize=address
2947 add_ldflags -fsanitize=address
2948 ;;
2949 *-msan)
2950 cc_default="${toolchain%-msan}"
2951 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2952 add_ldflags -fsanitize=memory
2953 ;;
2954 *-tsan)
2955 cc_default="${toolchain%-tsan}"
2956 add_cflags -fsanitize=thread -fPIE
2957 add_ldflags -fsanitize=thread -pie
2958 case "$toolchain" in
2959 gcc-tsan)
2960 add_cflags -fPIC
2961 add_ldflags -fPIC
2962 ;;
2963 esac
2964 ;;
2965 *-usan)
2966 cc_default="${toolchain%-usan}"
2967 add_cflags -fsanitize=undefined
2968 add_ldflags -fsanitize=undefined
2969 case "$toolchain" in
2970 clang-usan)
2971 add_cflags -O1
2972 ;;
2973 esac
2974 ;;
2975 valgrind-*)
2976 target_exec_default="valgrind"
2977 case "$toolchain" in
2978 valgrind-massif)
2979 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2980 ;;
2981 valgrind-memcheck)
2982 target_exec_args="--track-origins=yes --leak-check=full"
2983 ;;
2984 esac
2985 ;;
2986 msvc)
2987 # Check whether the current MSVC version needs the C99 converter.
2988 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2989 # support enough of C99 to build libav. Default to the new
2990 # behaviour if the regexp was unable to match anything, since this
2991 # successfully parses the version number of existing supported
2992 # versions that require the converter (MSVC 2010 and 2012).
2993 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2994 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2995 cc_default="cl"
2996 else
2997 cc_default="c99wrap cl"
2998 fi
2999 ld_default="$source_path/compat/windows/mslink"
3000 nm_default="dumpbin -symbols"
3001 ar_default="lib"
3002 case "$arch" in
3003 arm*)
3004 as_default="armasm"
3005 ;;
3006 esac
3007 target_os_default="win32"
3008 # Use a relative path for TMPDIR. This makes sure all the
3009 # ffconf temp files are written with a relative path, avoiding
3010 # issues with msys/win32 path conversion for MSVC parameters
3011 # such as -Fo<file> or -out:<file>.
3012 TMPDIR=.
3013 ;;
3014 icl)
3015 cc_default="icl"
3016 ld_default="xilink"
3017 nm_default="dumpbin -symbols"
3018 ar_default="xilib"
3019 target_os_default="win32"
3020 TMPDIR=.
3021 ;;
3022 gcov)
3023 add_cflags -fprofile-arcs -ftest-coverage
3024 add_ldflags -fprofile-arcs -ftest-coverage
3025 ;;
3026 llvm-cov)
3027 add_cflags -fprofile-arcs -ftest-coverage
3028 add_ldflags --coverage
3029 ;;
3030 hardened)
3031 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3032 add_cflags -fno-strict-overflow -fstack-protector-all
3033 add_ldflags -Wl,-z,relro -Wl,-z,now
3034 ;;
3035 ?*)
3036 die "Unknown toolchain $toolchain"
3037 ;;
3038 esac
3039
3040 test -n "$cross_prefix" && enable cross_compile
3041
3042 if enabled cross_compile; then
3043 test -n "$arch" && test -n "$target_os" ||
3044 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3045 fi
3046
3047 ar_default="${cross_prefix}${ar_default}"
3048 cc_default="${cross_prefix}${cc_default}"
3049 objcc_default="${cross_prefix}${objcc_default}"
3050 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3051 nm_default="${cross_prefix}${nm_default}"
3052 pkg_config_default="${cross_prefix}${pkg_config_default}"
3053 ranlib="${cross_prefix}${ranlib}"
3054 strip="${cross_prefix}${strip}"
3055
3056 sysinclude_default="${sysroot}/usr/include"
3057
3058 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3059 enabled cross_compile || host_cc_default=$cc
3060 set_default host_cc
3061
3062 if ! $pkg_config --version >/dev/null 2>&1; then
3063 warn "$pkg_config not found, library detection may fail."
3064 pkg_config=false
3065 fi
3066
3067 exesuf() {
3068 case $1 in
3069 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3070 esac
3071 }
3072
3073 EXESUF=$(exesuf $target_os)
3074 HOSTEXESUF=$(exesuf $host_os)
3075
3076 # set temporary file name
3077 : ${TMPDIR:=$TEMPDIR}
3078 : ${TMPDIR:=$TMP}
3079 : ${TMPDIR:=/tmp}
3080
3081 if ! check_cmd mktemp -u XXXXXX; then
3082 # simple replacement for missing mktemp
3083 # NOT SAFE FOR GENERAL USE
3084 mktemp(){
3085 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3086 echo "$tmpname"
3087 mkdir "$tmpname"
3088 }
3089 fi
3090
3091 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3092 die "Unable to create temporary directory in $TMPDIR."
3093
3094 tmpfile(){
3095 tmp="${AVTMPDIR}/test"$2
3096 (set -C; exec > $tmp) 2> /dev/null ||
3097 die "Unable to create temporary file in $AVTMPDIR."
3098 eval $1=$tmp
3099 }
3100
3101 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3102 trap 'exit 2' INT
3103
3104 tmpfile TMPASM .asm
3105 tmpfile TMPC .c
3106 tmpfile TMPE $EXESUF
3107 tmpfile TMPH .h
3108 tmpfile TMPO .o
3109 tmpfile TMPS .S
3110 tmpfile TMPSH .sh
3111 tmpfile TMPV .ver
3112
3113 unset -f mktemp
3114
3115 chmod +x $TMPE
3116
3117 # make sure we can execute files in $TMPDIR
3118 cat > $TMPSH 2>> $logfile <<EOF
3119 #! /bin/sh
3120 EOF
3121 chmod +x $TMPSH >> $logfile 2>&1
3122 if ! $TMPSH >> $logfile 2>&1; then
3123 cat <<EOF
3124 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3125 variable to another directory and make sure that it is not mounted noexec.
3126 EOF
3127 die "Sanity test failed."
3128 fi
3129
3130 armasm_flags(){
3131 for flag; do
3132 case $flag in
3133 # Filter out MSVC cl.exe options from cflags that shouldn't
3134 # be passed to gas-preprocessor
3135 -M[TD]*) ;;
3136 *) echo $flag ;;
3137 esac
3138 done
3139 }
3140
3141 ccc_flags(){
3142 for flag; do
3143 case $flag in
3144 -std=c99) echo -c99 ;;
3145 -mcpu=*) echo -arch ${flag#*=} ;;
3146 -mieee) echo -ieee ;;
3147 -O*|-fast) echo $flag ;;
3148 -fno-math-errno) echo -assume nomath_errno ;;
3149 -g) echo -g3 ;;
3150 -Wall) echo -msg_enable level2 ;;
3151 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3152 -Wl,*) echo $flag ;;
3153 -f*|-W*) ;;
3154 *) echo $flag ;;
3155 esac
3156 done
3157 }
3158
3159 cparser_flags(){
3160 for flag; do
3161 case $flag in
3162 -Wno-switch) echo -Wno-switch-enum ;;
3163 -Wno-format-zero-length) ;;
3164 -Wdisabled-optimization) ;;
3165 -Wno-pointer-sign) echo -Wno-other ;;
3166 *) echo $flag ;;
3167 esac
3168 done
3169 }
3170
3171 msvc_common_flags(){
3172 for flag; do
3173 case $flag in
3174 # In addition to specifying certain flags under the compiler
3175 # specific filters, they must be specified here as well or else the
3176 # generic catch all at the bottom will print the original flag.
3177 -Wall) ;;
3178 -Wextra) ;;
3179 -std=c99) ;;
3180 # Common flags
3181 -fomit-frame-pointer) ;;
3182 -g) echo -Z7 ;;
3183 -fno-math-errno) ;;
3184 -fno-common) ;;
3185 -fno-signed-zeros) ;;
3186 -fPIC) ;;
3187 -mthumb) ;;
3188 -march=*) ;;
3189 -lz) echo zlib.lib ;;
3190 -lx264) echo libx264.lib ;;
3191 -l*) echo ${flag#-l}.lib ;;
3192 -L*) echo -libpath:${flag#-L} ;;
3193 *) echo $flag ;;
3194 esac
3195 done
3196 }
3197
3198 msvc_flags(){
3199 msvc_common_flags "$@"
3200 for flag; do
3201 case $flag in
3202 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3203 -wd4554 ;;
3204 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3205 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3206 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3207 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3208 esac
3209 done
3210 }
3211
3212 icl_flags(){
3213 msvc_common_flags "$@"
3214 for flag; do
3215 case $flag in
3216 # Despite what Intel's documentation says -Wall, which is supported
3217 # on Windows, does enable remarks so disable them here.
3218 -Wall) echo $flag -Qdiag-disable:remark ;;
3219 -std=c99) echo -Qstd=c99 ;;
3220 esac
3221 done
3222 }
3223
3224 pgi_flags(){
3225 for flag; do
3226 case $flag in
3227 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3228 -fomit-frame-pointer) echo -Mnoframe ;;
3229 -g) echo -gopt ;;
3230 *) echo $flag ;;
3231 esac
3232 done
3233 }
3234
3235 suncc_flags(){
3236 for flag; do
3237 case $flag in
3238 -march=*|-mcpu=*)
3239 case "${flag#*=}" in
3240 native) echo -xtarget=native ;;
3241 v9|niagara) echo -xarch=sparc ;;
3242 ultrasparc) echo -xarch=sparcvis ;;
3243 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3244 i586|pentium) echo -xchip=pentium ;;
3245 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3246 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3247 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3248 pentium4*) echo -xtarget=pentium4 ;;
3249 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3250 *-sse3) echo -xarch=sse3 ;;
3251 core2) echo -xarch=ssse3 -xchip=core2 ;;
3252 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3253 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3254 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3255 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3256 k8|opteron|athlon64|athlon-fx)
3257 echo -xarch=sse2a ;;
3258 athlon*) echo -xarch=pentium_proa ;;
3259 esac
3260 ;;
3261 -std=c99) echo -xc99 ;;
3262 -fomit-frame-pointer) echo -xregs=frameptr ;;
3263 -fPIC) echo -KPIC -xcode=pic32 ;;
3264 -W*,*) echo $flag ;;
3265 -f*-*|-W*|-mimpure-text) ;;
3266 -shared) echo -G ;;
3267 *) echo $flag ;;
3268 esac
3269 done
3270 }
3271
3272 tms470_flags(){
3273 for flag; do
3274 case $flag in
3275 -march=*|-mcpu=*)
3276 case "${flag#*=}" in
3277 armv7-a|cortex-a*) echo -mv=7a8 ;;
3278 armv7-r|cortex-r*) echo -mv=7r4 ;;
3279 armv7-m|cortex-m*) echo -mv=7m3 ;;
3280 armv6*|arm11*) echo -mv=6 ;;
3281 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3282 echo -mv=5e ;;
3283 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3284 esac
3285 ;;
3286 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3287 -mfpu=vfp) echo --float_support=vfpv2 ;;
3288 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3289 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3290 -msoft-float) echo --float_support=vfplib ;;
3291 -O[0-3]|-mf=*) echo $flag ;;
3292 -g) echo -g -mn ;;
3293 -pds=*) echo $flag ;;
3294 -D*|-I*) echo $flag ;;
3295 --gcc|--abi=*) echo $flag ;;
3296 -me) echo $flag ;;
3297 esac
3298 done
3299 }
3300
3301 probe_cc(){
3302 pfx=$1
3303 _cc=$2
3304
3305 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3306 unset _ld_o _ldflags _ld_lib _ld_path
3307 unset _depflags _DEPCMD _DEPFLAGS
3308 _flags_filter=echo
3309
3310 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3311 _type=llvm_gcc
3312 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3313 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3314 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3315 _cflags_speed='-O3'
3316 _cflags_size='-Os'
3317 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3318 _type=gcc
3319 gcc_version=$($_cc --version | head -n1)
3320 gcc_basever=$($_cc -dumpversion)
3321 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3322 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3323 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3324 if ! $_cc -dumpversion | grep -q '^2\.'; then
3325 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3326 fi
3327 _cflags_speed='-O3'
3328 _cflags_size='-Os'
3329 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3330 _type=icc
3331 _ident=$($_cc --version | head -n1)
3332 _depflags='-MMD'
3333 _cflags_speed='-O3'
3334 _cflags_size='-Os'
3335 _cflags_noopt='-O1'
3336 elif $_cc -v 2>&1 | grep -q xlc; then
3337 _type=xlc
3338 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3339 _cflags_speed='-O5'
3340 _cflags_size='-O5 -qcompact'
3341 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3342 _type=ccc
3343 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3344 _DEPFLAGS='-M'
3345 _cflags_speed='-fast'
3346 _cflags_size='-O1'
3347 _flags_filter=ccc_flags
3348 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3349 test -d "$sysroot" || die "No valid sysroot specified."
3350 _type=armcc
3351 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3352 armcc_conf="$PWD/armcc.conf"
3353 $_cc --arm_linux_configure \
3354 --arm_linux_config_file="$armcc_conf" \
3355 --configure_sysroot="$sysroot" \
3356 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3357 die "Error creating armcc configuration file."
3358 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3359 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3360 as_default="${cross_prefix}gcc"
3361 _depflags='-MMD'
3362 _cflags_speed='-O3'
3363 _cflags_size='-Os'
3364 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3365 _type=tms470
3366 _ident=$($_cc -version | head -n1 | tr -s ' ')
3367 _flags='--gcc --abi=eabi -me'
3368 _cc_e='-ppl -fe=$@'
3369 _cc_o='-fe=$@'
3370 _depflags='-ppa -ppd=$(@:.o=.d)'
3371 _cflags_speed='-O3 -mf=5'
3372 _cflags_size='-O3 -mf=2'
3373 _flags_filter=tms470_flags
3374 elif $_cc -v 2>&1 | grep -q clang; then
3375 _type=clang
3376 _ident=$($_cc --version 2>/dev/null | head -n1)
3377 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3378 _cflags_speed='-O3'
3379 _cflags_size='-Os'
3380 elif $_cc -V 2>&1 | grep -q Sun; then
3381 _type=suncc
3382 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3383 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3384 _DEPFLAGS='-xM1 -xc99'
3385 _ldflags='-std=c99'
3386 _cflags_speed='-O5'
3387 _cflags_size='-O5 -xspace'
3388 _flags_filter=suncc_flags
3389 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3390 _type=pathscale
3391 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3392 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3393 _cflags_speed='-O2'
3394 _cflags_size='-Os'
3395 _flags_filter='filter_out -Wdisabled-optimization'
3396 elif $_cc -v 2>&1 | grep -q Open64; then
3397 _type=open64
3398 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3399 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3400 _cflags_speed='-O2'
3401 _cflags_size='-Os'
3402 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3403 elif $_cc -V 2>&1 | grep -q Portland; then
3404 _type=pgi
3405 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3406 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3407 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3408 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3409 _cflags_noopt="-O1"
3410 _flags_filter=pgi_flags
3411 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3412 _type=armasm
3413 _ident=$($_cc | head -n1)
3414 # 4509: "This form of conditional instruction is deprecated"
3415 _flags="-nologo -ignore 4509"
3416 _flags_filter=armasm_flags
3417 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3418 _type=msvc
3419 _ident=$($_cc 2>&1 | head -n1)
3420 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3421 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3422 _cflags_speed="-O2"
3423 _cflags_size="-O1"
3424 _cflags_noopt="-O1"
3425 if $_cc -nologo- 2>&1 | grep -q Linker; then
3426 _ld_o='-out:$@'
3427 else
3428 _ld_o='-Fe$@'
3429 fi
3430 _cc_o='-Fo$@'
3431 _cc_e='-P -Fi$@'
3432 _flags_filter=msvc_flags
3433 _ld_lib='lib%.a'
3434 _ld_path='-libpath:'
3435 _flags='-nologo'
3436 elif $_cc 2>&1 | grep -q Intel; then
3437 _type=icl
3438 _ident=$($_cc 2>&1 | head -n1)
3439 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3440 # Not only is O3 broken on 13.x+ but it is slower on all previous
3441 # versions (tested) as well.
3442 _cflags_speed="-O2"
3443 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3444 if $_cc 2>&1 | grep -q Linker; then
3445 _ld_o='-out:$@'
3446 else
3447 _ld_o='-Fe$@'
3448 fi
3449 _cc_o='-Fo$@'
3450 _cc_e='-P'
3451 _flags_filter=icl_flags
3452 _ld_lib='lib%.a'
3453 _ld_path='-libpath:'
3454 # -Qdiag-error to make icl error when seeing certain unknown arguments
3455 _flags='-nologo -Qdiag-error:4044,10157'
3456 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3457 # with MSVC which enables it by default.
3458 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3459 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3460 # lld can emulate multiple different linkers; in ms link.exe mode,
3461 # the -? parameter gives the help output which contains an identifyable
3462 # string, while it gives an error in other modes.
3463 _type=lld-link
3464 # The link.exe mode doesn't have a switch for getting the version,
3465 # but we can force it back to gnu mode and get the version from there.
3466 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3467 _ld_o='-out:$@'
3468 _flags_filter=msvc_flags
3469 _ld_lib='lib%.a'
3470 _ld_path='-libpath:'
3471 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3472 _type=cparser
3473 _ident=$($_cc --version | head -n1)
3474 _depflags='-MMD'
3475 _cflags_speed='-O4'
3476 _cflags_size='-O2'
3477 _flags_filter=cparser_flags
3478 fi
3479
3480 eval ${pfx}_type=\$_type
3481 eval ${pfx}_ident=\$_ident
3482 }
3483
3484 set_ccvars(){
3485 eval ${1}_C=\${_cc_c-\${${1}_C}}
3486 eval ${1}_E=\${_cc_e-\${${1}_E}}
3487 eval ${1}_O=\${_cc_o-\${${1}_O}}
3488
3489 if [ -n "$_depflags" ]; then
3490 eval ${1}_DEPFLAGS=\$_depflags
3491 else
3492 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3493 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3494 eval DEP${1}FLAGS=\$_flags
3495 fi
3496 }
3497
3498 probe_cc cc "$cc"
3499 cflags_filter=$_flags_filter
3500 cflags_speed=$_cflags_speed
3501 cflags_size=$_cflags_size
3502 cflags_noopt=$_cflags_noopt
3503 add_cflags $_flags $_cflags
3504 cc_ldflags=$_ldflags
3505 set_ccvars CC
3506
3507 probe_cc hostcc "$host_cc"
3508 host_cflags_filter=$_flags_filter
3509 host_cflags_speed=$_cflags_speed
3510 add_host_cflags $_flags $_cflags
3511 set_ccvars HOSTCC
3512
3513 test -n "$cc_type" && enable $cc_type ||
3514 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3515
3516 : ${as_default:=$cc}
3517 : ${objcc_default:=$cc}
3518 : ${dep_cc_default:=$cc}
3519 : ${ld_default:=$cc}
3520 : ${host_ld_default:=$host_cc}
3521 set_default ar as objcc dep_cc ld host_ld
3522
3523 probe_cc as "$as"
3524 asflags_filter=$_flags_filter
3525 add_asflags $_flags $_cflags
3526 set_ccvars AS
3527
3528 probe_cc objcc "$objcc"
3529 objcflags_filter=$_flags_filter
3530 add_objcflags $_flags $_cflags
3531 set_ccvars OBJC
3532
3533 probe_cc ld "$ld"
3534 ldflags_filter=$_flags_filter
3535 add_ldflags $_flags $_ldflags
3536 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3537 LD_O=${_ld_o-$LD_O}
3538 LD_LIB=${_ld_lib-$LD_LIB}
3539 LD_PATH=${_ld_path-$LD_PATH}
3540
3541 probe_cc hostld "$host_ld"
3542 host_ldflags_filter=$_flags_filter
3543 add_host_ldflags $_flags $_ldflags
3544 HOSTLD_O=${_ld_o-$HOSTLD_O}
3545
3546 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3547 probe_cc depcc "$dep_cc"
3548 CCDEP=${_DEPCMD:-$DEPCMD}
3549 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3550 DEPCCFLAGS=$_flags
3551 fi
3552
3553 if $ar 2>&1 | grep -q Microsoft; then
3554 arflags="-nologo"
3555 ar_o='-out:$@'
3556 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3557 arflags="rq"
3558 ar_o='$@'
3559 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3560 arflags='-Xany -r -c'
3561 ar_o='$@'
3562 else
3563 arflags="rc"
3564 ar_o='$@'
3565 fi
3566
3567 add_cflags $extra_cflags
3568 add_objcflags $extra_objcflags
3569 add_asflags $extra_cflags
3570
3571 if test -n "$sysroot"; then
3572 case "$cc_type" in
3573 gcc|llvm_gcc|clang)
3574 add_cppflags --sysroot="$sysroot"
3575 add_ldflags --sysroot="$sysroot"
3576 ;;
3577 tms470)
3578 add_cppflags -I"$sysinclude"
3579 add_ldflags --sysroot="$sysroot"
3580 ;;
3581 esac
3582 fi
3583
3584 if test "$cpu" = host; then
3585 enabled cross_compile &&
3586 die "--cpu=host makes no sense when cross-compiling."
3587
3588 case "$cc_type" in
3589 gcc|llvm_gcc)
3590 check_native(){
3591 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3592 sed -n "/cc1.*$1=/{
3593 s/.*$1=\\([^ ]*\\).*/\\1/
3594 p
3595 q
3596 }" $TMPE
3597 }
3598 cpu=$(check_native -march || check_native -mcpu)
3599 ;;
3600 esac
3601
3602 test "${cpu:-host}" = host &&
3603 die "--cpu=host not supported with compiler $cc"
3604 fi
3605
3606 # Deal with common $arch aliases
3607 case "$arch" in
3608 aarch64|arm64)
3609 arch="aarch64"
3610 ;;
3611 arm*)
3612 arch="arm"
3613 ;;
3614 mips*|IP*)
3615 case "$arch" in
3616 *el)
3617 add_cppflags -EL
3618 add_ldflags -EL
3619 ;;
3620 *eb)
3621 add_cppflags -EB
3622 add_ldflags -EB
3623 ;;
3624 esac
3625 arch="mips"
3626 ;;
3627 parisc*|hppa*)
3628 arch="parisc"
3629 ;;
3630 "Power Macintosh"|ppc*|powerpc*)
3631 arch="ppc"
3632 ;;
3633 s390|s390x)
3634 arch="s390"
3635 ;;
3636 sh4|sh)
3637 arch="sh4"
3638 ;;
3639 sun4u|sparc*)
3640 arch="sparc"
3641 ;;
3642 tilegx|tile-gx)
3643 arch="tilegx"
3644 ;;
3645 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3646 arch="x86"
3647 ;;
3648 esac
3649
3650 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3651 enable $arch
3652
3653 # Add processor-specific flags
3654 if enabled aarch64; then
3655
3656 case $cpu in
3657 armv*)
3658 cpuflags="-march=$cpu"
3659 ;;
3660 *)
3661 cpuflags="-mcpu=$cpu"
3662 ;;
3663 esac
3664
3665 elif enabled alpha; then
3666
3667 cpuflags="-mcpu=$cpu"
3668
3669 elif enabled arm; then
3670
3671 check_arm_arch() {
3672 check_cpp_condition stddef.h \
3673 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3674 $cpuflags
3675 }
3676
3677 probe_arm_arch() {
3678 if check_arm_arch 4; then echo armv4
3679 elif check_arm_arch 4T; then echo armv4t
3680 elif check_arm_arch 5; then echo armv5
3681 elif check_arm_arch 5E; then echo armv5e
3682 elif check_arm_arch 5T; then echo armv5t
3683 elif check_arm_arch 5TE; then echo armv5te
3684 elif check_arm_arch 5TEJ; then echo armv5te
3685 elif check_arm_arch 6; then echo armv6
3686 elif check_arm_arch 6J; then echo armv6j
3687 elif check_arm_arch 6K; then echo armv6k
3688 elif check_arm_arch 6Z; then echo armv6z
3689 elif check_arm_arch 6ZK; then echo armv6zk
3690 elif check_arm_arch 6T2; then echo armv6t2
3691 elif check_arm_arch 7; then echo armv7
3692 elif check_arm_arch 7A 7_A; then echo armv7-a
3693 elif check_arm_arch 7S; then echo armv7-a
3694 elif check_arm_arch 7R 7_R; then echo armv7-r
3695 elif check_arm_arch 7M 7_M; then echo armv7-m
3696 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3697 elif check_arm_arch 8A 8_A; then echo armv8-a
3698 fi
3699 }
3700
3701 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3702
3703 case $cpu in
3704 armv*)
3705 cpuflags="-march=$cpu"
3706 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3707 ;;
3708 *)
3709 cpuflags="-mcpu=$cpu"
3710 case $cpu in
3711 cortex-a*) subarch=armv7a ;;
3712 cortex-r*) subarch=armv7r ;;
3713 cortex-m*) enable thumb; subarch=armv7m ;;
3714 arm11*) subarch=armv6 ;;
3715 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3716 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3717 *) subarch=$(probe_arm_arch) ;;
3718 esac
3719 ;;
3720 esac
3721
3722 case "$subarch" in
3723 armv5t*) enable fast_clz ;;
3724 armv[6-8]*) enable fast_clz fast_unaligned ;;
3725 esac
3726
3727 elif enabled avr32; then
3728
3729 case $cpu in
3730 ap7[02]0[0-2])
3731 subarch="avr32_ap"
3732 cpuflags="-mpart=$cpu"
3733 ;;
3734 ap)
3735 subarch="avr32_ap"
3736 cpuflags="-march=$cpu"
3737 ;;
3738 uc3[ab]*)
3739 subarch="avr32_uc"
3740 cpuflags="-mcpu=$cpu"
3741 ;;
3742 uc)
3743 subarch="avr32_uc"
3744 cpuflags="-march=$cpu"
3745 ;;
3746 esac
3747
3748 elif enabled bfin; then
3749
3750 cpuflags="-mcpu=$cpu"
3751
3752 elif enabled mips; then
3753
3754 cpuflags="-march=$cpu"
3755
3756 elif enabled ppc; then
3757
3758 disable ldbrx
3759
3760 case $(tolower $cpu) in
3761 601|ppc601|powerpc601)
3762 cpuflags="-mcpu=601"
3763 disable altivec
3764 ;;
3765 603*|ppc603*|powerpc603*)
3766 cpuflags="-mcpu=603"
3767 disable altivec
3768 ;;
3769 604*|ppc604*|powerpc604*)
3770 cpuflags="-mcpu=604"
3771 disable altivec
3772 ;;
3773 g3|75*|ppc75*|powerpc75*)
3774 cpuflags="-mcpu=750"
3775 disable altivec
3776 ;;
3777 g4|745*|ppc745*|powerpc745*)
3778 cpuflags="-mcpu=7450"
3779 disable vsx
3780 ;;
3781 74*|ppc74*|powerpc74*)
3782 cpuflags="-mcpu=7400"
3783 disable vsx
3784 ;;
3785 g5|970|ppc970|powerpc970)
3786 cpuflags="-mcpu=970"
3787 disable vsx
3788 ;;
3789 power[3-6]*)
3790 cpuflags="-mcpu=$cpu"
3791 disable vsx
3792 ;;
3793 power[7-8]*)
3794 cpuflags="-mcpu=$cpu"
3795 enable ldbrx
3796 ;;
3797 cell)
3798 cpuflags="-mcpu=cell"
3799 enable ldbrx
3800 disable vsx
3801 ;;
3802 e500mc)
3803 cpuflags="-mcpu=e500mc"
3804 disable altivec
3805 ;;
3806 e500v2)
3807 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3808 disable altivec
3809 disable dcbzl
3810 ;;
3811 e500)
3812 cpuflags="-mcpu=8540 -mhard-float"
3813 disable altivec
3814 disable dcbzl
3815 ;;
3816 esac
3817
3818 elif enabled sparc; then
3819
3820 case $cpu in
3821 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3822 cpuflags="-mcpu=$cpu"
3823 ;;
3824 ultrasparc*|niagara[234])
3825 cpuflags="-mcpu=$cpu"
3826 ;;
3827 esac
3828
3829 elif enabled x86; then
3830
3831 case $cpu in
3832 i[345]86|pentium)
3833 cpuflags="-march=$cpu"
3834 disable i686
3835 disable mmx
3836 ;;
3837 # targets that do NOT support nopl and conditional mov (cmov)
3838 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3839 cpuflags="-march=$cpu"
3840 disable i686
3841 ;;
3842 # targets that do support nopl and conditional mov (cmov)
3843 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3844 cpuflags="-march=$cpu"
3845 enable i686
3846 enable fast_cmov
3847 ;;
3848 # targets that do support conditional mov but on which it's slow
3849 pentium4|pentium4m|prescott|nocona)
3850 cpuflags="-march=$cpu"
3851 enable i686
3852 disable fast_cmov
3853 ;;
3854 esac
3855
3856 fi
3857
3858 if [ "$cpu" != generic ]; then
3859 add_cflags $cpuflags
3860 add_asflags $cpuflags
3861 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3862 fi
3863
3864 # compiler sanity check
3865 check_exec <<EOF
3866 int main(void){ return 0; }
3867 EOF
3868 if test "$?" != 0; then
3869 echo "$cc is unable to create an executable file."
3870 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3871 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3872 echo "Only do this if you know what cross compiling means."
3873 fi
3874 die "C compiler test failed."
3875 fi
3876
3877 add_cppflags -D_ISOC99_SOURCE
3878
3879 # some compilers silently accept -std=c11, so we also need to check that the
3880 # version macro is defined properly
3881 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3882 add_cflags -std=c11 ||
3883 check_cflags -std=c99
3884
3885 check_cppflags -D_FILE_OFFSET_BITS=64
3886 check_cppflags -D_LARGEFILE_SOURCE
3887
3888 add_host_cppflags -D_ISOC99_SOURCE
3889 check_host_cflags -std=c99
3890 check_host_cflags -Wall
3891 check_host_cflags $host_cflags_speed
3892
3893 check_64bit(){
3894 arch32=$1
3895 arch64=$2
3896 expr=$3
3897 check_code cc "" "int test[2*($expr) - 1]" &&
3898 subarch=$arch64 || subarch=$arch32
3899 }
3900
3901 case "$arch" in
3902 aarch64|alpha|ia64)
3903 spic=$shared
3904 ;;
3905 mips)
3906 check_64bit mips mips64 '_MIPS_SIM > 1'
3907 spic=$shared
3908 ;;
3909 parisc)
3910 check_64bit parisc parisc64 'sizeof(void *) > 4'
3911 spic=$shared
3912 ;;
3913 ppc)
3914 check_64bit ppc ppc64 'sizeof(void *) > 4'
3915 spic=$shared
3916 ;;
3917 s390)
3918 check_64bit s390 s390x 'sizeof(void *) > 4'
3919 spic=$shared
3920 ;;
3921 sparc)
3922 check_64bit sparc sparc64 'sizeof(void *) > 4'
3923 spic=$shared
3924 ;;
3925 x86)
3926 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3927 if test "$subarch" = "x86_64"; then
3928 spic=$shared
3929 fi
3930 ;;
3931 esac
3932
3933 enable $subarch
3934 enabled spic && enable_weak pic
3935
3936 enabled x86_64 && objformat=elf64 || objformat="elf32"
3937
3938 # OS specific
3939 case $target_os in
3940 aix)
3941 SHFLAGS=-shared
3942 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3943 enabled shared && add_ldflags -Wl,-brtl
3944 ;;
3945 android)
3946 disable symver
3947 enable section_data_rel_ro
3948 SLIB_INSTALL_NAME='$(SLIBNAME)'
3949 SLIB_INSTALL_LINKS=
3950 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3951 ;;
3952 haiku)
3953 prefix_default="/boot/common"
3954 network_extralibs="-lnetwork"
3955 host_extralibs=
3956 ;;
3957 sunos)
3958 SHFLAGS='-shared -Wl,-h,$$(@F)'
3959 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3960 network_extralibs="-lsocket -lnsl"
3961 # When using suncc to build, the Solaris linker will mark
3962 # an executable with each instruction set encountered by
3963 # the Solaris assembler. As our libraries contain their own
3964 # guards for processor-specific code, instead suppress
3965 # generation of the HWCAPS ELF section on Solaris x86 only.
3966 enabled_all suncc x86 &&
3967 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3968 add_ldflags -Wl,-M,mapfile
3969 nm_default='nm -P -g'
3970 version_script='-M'
3971 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3972 ;;
3973 netbsd)
3974 disable symver
3975 oss_indev_extralibs="-lossaudio"
3976 oss_outdev_extralibs="-lossaudio"
3977 ;;
3978 openbsd|bitrig)
3979 disable symver
3980 SHFLAGS='-shared'
3981 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3982 SLIB_INSTALL_LINKS=
3983 oss_indev_extralibs="-lossaudio"
3984 oss_outdev_extralibs="-lossaudio"
3985 ;;
3986 dragonfly)
3987 disable symver
3988 ;;
3989 freebsd)
3990 ;;
3991 bsd/os)
3992 add_extralibs -lpoll -lgnugetopt
3993 ;;
3994 darwin)
3995 enabled ppc && add_asflags -force_cpusubtype_ALL
3996 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3997 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3998 add_ldflags -Wl,-dynamic,-search_paths_first
3999 check_cflags -Werror=partial-availability
4000 SLIBSUF=".dylib"
4001 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
4002 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
4003 enabled x86_64 && objformat="macho64" || objformat="macho32"
4004 enabled_any pic shared ||
4005 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4006 check_header dispatch/dispatch.h &&
4007 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4008 if test -n "$sysroot"; then
4009 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4010 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
4011 fi
4012 ;;
4013 msys*)
4014 die "Native MSYS builds are discouraged, please use the MINGW environment."
4015 ;;
4016 mingw32*|mingw64*)
4017 if test $target_os = "mingw32ce"; then
4018 disable network
4019 else
4020 target_os=mingw32
4021 fi
4022 LIBTARGET=i386
4023 if enabled x86_64; then
4024 LIBTARGET="i386:x86-64"
4025 elif enabled arm; then
4026 LIBTARGET=arm-wince
4027 fi
4028 check_ldflags -Wl,--nxcompat
4029 check_ldflags -Wl,--dynamicbase
4030 shlibdir_default="$bindir_default"
4031 SLIBPREF=""
4032 SLIBSUF=".dll"
4033 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4034 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4035 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4036 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4037 SLIB_INSTALL_LINKS=
4038 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4039 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4040 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4041 enabled x86_64 && objformat="win64" || objformat="win32"
4042 dlltool="${cross_prefix}dlltool"
4043 ranlib=:
4044 enable dos_paths
4045 ;;
4046 win32|win64)
4047 disable symver
4048 if enabled shared; then
4049 # Link to the import library instead of the normal static library
4050 # for shared libs.
4051 LD_LIB='%.lib'
4052 # Cannot build both shared and static libs with MSVC or icl.
4053 disable static
4054 fi
4055 shlibdir_default="$bindir_default"
4056 SLIBPREF=""
4057 SLIBSUF=".dll"
4058 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4059 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4060 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4061 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4062 SLIB_INSTALL_LINKS=
4063 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4064 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4065 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4066 enabled x86_64 && objformat="win64" || objformat="win32"
4067 ranlib=:
4068 enable dos_paths
4069 ;;
4070 cygwin*)
4071 target_os=cygwin
4072 shlibdir_default="$bindir_default"
4073 SLIBPREF="cyg"
4074 SLIBSUF=".dll"
4075 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4076 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4077 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4078 SLIB_INSTALL_LINKS=
4079 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4080 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4081 enabled x86_64 && objformat="win64" || objformat="win32"
4082 enable dos_paths
4083 ;;
4084 *-dos|freedos|opendos)
4085 network_extralibs="-lsocket"
4086 objformat="coff"
4087 enable dos_paths
4088 add_cppflags -U__STRICT_ANSI__
4089 ;;
4090 linux)
4091 enable dv1394
4092 enable section_data_rel_ro
4093 ;;
4094 irix*)
4095 target_os=irix
4096 ranlib="echo ignoring ranlib"
4097 ;;
4098 os/2*)
4099 ln_s="cp -f"
4100 objformat="aout"
4101 add_cppflags -D_GNU_SOURCE
4102 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4103 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4104 LIBSUF="_s.a"
4105 SLIBPREF=""
4106 SLIBSUF=".dll"
4107 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4108 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4109 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4110 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4111 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4112 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4113 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4114 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4115 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4116 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4117 enable dos_paths
4118 ;;
4119 gnu/kfreebsd)
4120 add_cppflags -D_BSD_SOURCE
4121 ;;
4122 gnu)
4123 ;;
4124 qnx)
4125 add_cppflags -D_QNX_SOURCE
4126 network_extralibs="-lsocket"
4127 ;;
4128 symbian)
4129 SLIBSUF=".dll"
4130 enable dos_paths
4131 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4132 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4133 add_ldflags -Wl,--target1-abs,--no-undefined \
4134 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4135 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4136 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4137 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4138 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4139 ;;
4140 osf1)
4141 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4142 ;;
4143 minix)
4144 ;;
4145 none)
4146 ;;
4147 *)
4148 die "Unknown OS '$target_os'."
4149 ;;
4150 esac
4151
4152 # determine libc flavour
4153
4154 probe_libc(){
4155 pfx=$1
4156 pfx_no_=${pfx%_}
4157 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4158 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4159 eval ${pfx}libc_type=uclibc
4160 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4161 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4162 eval ${pfx}libc_type=glibc
4163 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4164 # MinGW headers can be installed on Cygwin, so check for newlib first.
4165 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4166 eval ${pfx}libc_type=newlib
4167 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4168 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4169 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4170 eval ${pfx}libc_type=mingw64
4171 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4172 eval test \$${pfx_no_}cc_type = "gcc" &&
4173 add_${pfx}cppflags -D__printf__=__gnu_printf__
4174 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4175 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4176 eval ${pfx}libc_type=mingw32
4177 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4178 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4179 die "ERROR: MinGW32 runtime version must be >= 3.15."
4180 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4181 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4182 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4183 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4184 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4185 eval test \$${pfx_no_}cc_type = "gcc" &&
4186 add_${pfx}cppflags -D__printf__=__gnu_printf__
4187 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4188 eval ${pfx}libc_type=msvcrt
4189 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4190 if [ "$pfx" = host_ ]; then
4191 add_host_cppflags -Dsnprintf=_snprintf
4192 else
4193 add_compat strtod.o strtod=avpriv_strtod
4194 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4195 _snprintf=avpriv_snprintf \
4196 vsnprintf=avpriv_vsnprintf
4197 fi
4198 fi
4199 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4200 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4201 # 0x601 by default unless something else is set by the user.
4202 # This can easily lead to us detecting functions only present
4203 # in such new versions and producing binaries requiring windows 7.0.
4204 # Therefore explicitly set the default to XP unless the user has
4205 # set something else on the command line.
4206 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4207 # family. For these cases, configure is free to use any functions
4208 # found in the SDK headers by default. (Alternatively, we could force
4209 # _WIN32_WINNT to 0x0602 in that case.)
4210 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4211 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4212 #ifdef WINAPI_FAMILY
4213 #include <winapifamily.h>
4214 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4215 #error not desktop
4216 #endif
4217 #endif
4218 EOF
4219 if [ "$pfx" = "" ]; then
4220 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4221 fi
4222 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4223 eval ${pfx}libc_type=klibc
4224 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4225 eval ${pfx}libc_type=bionic
4226 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4227 eval ${pfx}libc_type=solaris
4228 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4229 else
4230 eval ${pfx}libc_type=default
4231 add_${pfx}cppflags -D_DEFAULT_SOURCE
4232 fi
4233 }
4234
4235 probe_libc
4236 test -n "$libc_type" && enable libc_$libc_type
4237 probe_libc host_
4238 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4239
4240 # hacks for compiler/libc/os combinations
4241
4242 case $libc_type in
4243 bionic)
4244 add_compat strtod.o strtod=avpriv_strtod
4245 ;;
4246 glibc)
4247 if enabled tms470; then
4248 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4249 add_cppflags -D__USER_LABEL_PREFIX__=
4250 add_cppflags -D__builtin_memset=memset
4251 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4252 add_cflags -pds=48 # incompatible redefinition of macro
4253 elif enabled ccc; then
4254 add_ldflags -Wl,-z,now # calls to libots crash without this
4255 fi
4256 ;;
4257 esac
4258
4259 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4260 add_cppflags '-I\$(SRC_PATH)/compat/float'
4261
4262 esc(){
4263 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4264 }
4265
4266 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4267
4268 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4269
4270 set_default $PATHS_LIST
4271 set_default nm
4272
4273 # we need to build at least one lib type
4274 if ! enabled_any static shared; then
4275 cat <<EOF
4276 At least one library type must be built.
4277 Specify --enable-static to build the static libraries or --enable-shared to
4278 build the shared libraries as well. To only build the shared libraries specify
4279 --disable-static in addition to --enable-shared.
4280 EOF
4281 exit 1
4282 fi
4283
4284 disabled optimizations || check_cflags -fomit-frame-pointer
4285
4286 enable_weak_pic() {
4287 disabled pic && return
4288 enable pic
4289 add_cppflags -DPIC
4290 case "$target_os" in
4291 mingw*|cygwin*)
4292 ;;
4293 *)
4294 add_cflags -fPIC
4295 ;;
4296 esac
4297 add_asflags -fPIC
4298 }
4299
4300 enabled pic && enable_weak_pic
4301
4302 check_cc <<EOF || die "Symbol mangling check failed."
4303 int ff_extern;
4304 EOF
4305 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4306 extern_prefix=${sym%%ff_extern*}
4307
4308 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4309
4310 _restrict=
4311 for restrict_keyword in restrict __restrict__ __restrict; do
4312 check_cc <<EOF && _restrict=$restrict_keyword && break
4313 void foo(char * $restrict_keyword p);
4314 EOF
4315 done
4316
4317 check_cc <<EOF && enable pragma_deprecated
4318 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4319 EOF
4320
4321 check_cc <<EOF && enable attribute_packed
4322 struct { int x; } __attribute__((packed)) x;
4323 EOF
4324
4325 check_cc <<EOF && enable attribute_may_alias
4326 union { int x; } __attribute__((may_alias)) x;
4327 EOF
4328
4329 check_cc <<EOF || die "endian test failed"
4330 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4331 EOF
4332 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4333
4334 check_gas() {
4335 log "check_gas using '$as' as AS"
4336 # :vararg is used on aarch64, arm and ppc altivec
4337 check_as <<EOF || return 1
4338 .macro m n, y:vararg=0
4339 \n: .int \y
4340 .endm
4341 m x
4342 EOF
4343 # .altmacro is only used in arm asm
4344 ! enabled arm || check_as <<EOF || return 1
4345 .altmacro
4346 EOF
4347 enable gnu_as
4348 return 0
4349 }
4350
4351 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4352 nogas=:
4353 enabled_any arm aarch64 && nogas=die
4354 enabled_all ppc altivec && nogas=warn
4355 as_noop=-v
4356
4357 case $as_type in
4358 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4359 gcc) gaspp_as_type=gas ;;
4360 *) gaspp_as_type=$as_type ;;
4361 esac
4362
4363 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4364
4365 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4366 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"