lavc: Add coded bitstream read/write support for MPEG-2
[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 cbs_mpeg2
1746 dirac_parse
1747 dvprofile
1748 faandct
1749 faanidct
1750 fdctdsp
1751 flacdsp
1752 fmtconvert
1753 g722dsp
1754 gmp
1755 golomb
1756 gplv3
1757 h263dsp
1758 h264chroma
1759 h264dsp
1760 h264parse
1761 h264pred
1762 h264qpel
1763 hevc_ps
1764 hpeldsp
1765 huffman
1766 huffyuvdsp
1767 huffyuvencdsp
1768 idctdsp
1769 iirfilter
1770 imdct15
1771 intrax8
1772 iso_media
1773 ividsp
1774 jpegtables
1775 lgplv3
1776 libx262
1777 libxcb_shape
1778 lpc
1779 lzf
1780 me_cmp
1781 mpeg_er
1782 mpegaudio
1783 mpegaudiodsp
1784 mpegaudioheader
1785 mpegvideo
1786 mpegvideoenc
1787 mss34dsp
1788 pixblockdsp
1789 qpeldsp
1790 qsv
1791 qsvdec
1792 qsvenc
1793 rangecoder
1794 riffdec
1795 riffenc
1796 rtpdec
1797 rtpenc_chain
1798 rv34dsp
1799 sinewin
1800 snappy
1801 srtp
1802 startcode
1803 texturedsp
1804 texturedspenc
1805 tpeldsp
1806 vaapi_encode
1807 vc1dsp
1808 videodsp
1809 vp3dsp
1810 vp56dsp
1811 vp8dsp
1812 wma_freqs
1813 wmv2dsp
1814 "
1815
1816 CMDLINE_SELECT="
1817 $ARCH_EXT_LIST
1818 $CONFIG_LIST
1819 $HAVE_LIST_CMDLINE
1820 $THREADS_LIST
1821 asm
1822 cross_compile
1823 debug
1824 extra_warnings
1825 logging
1826 lto
1827 optimizations
1828 rpath
1829 "
1830
1831 PATHS_LIST="
1832 bindir
1833 datadir
1834 docdir
1835 incdir
1836 libdir
1837 mandir
1838 prefix
1839 shlibdir
1840 "
1841
1842 CMDLINE_SET="
1843 $PATHS_LIST
1844 ar
1845 arch
1846 as
1847 cc
1848 objcc
1849 cpu
1850 cross_prefix
1851 custom_allocator
1852 dep_cc
1853 env
1854 extra_version
1855 host_cc
1856 host_cflags
1857 host_extralibs
1858 host_ld
1859 host_ldflags
1860 host_os
1861 ignore_tests
1862 ld
1863 logfile
1864 malloc_prefix
1865 nm
1866 optflags
1867 pkg_config
1868 pkg_config_flags
1869 random_seed
1870 samples
1871 sysinclude
1872 sysroot
1873 target_exec
1874 target_os
1875 target_path
1876 target_samples
1877 toolchain
1878 x86asmexe
1879 "
1880
1881 CMDLINE_APPEND="
1882 extra_cflags
1883 extra_objcflags
1884 host_cppflags
1885 "
1886
1887 # code dependency declarations
1888
1889 # architecture extensions
1890
1891 armv5te_deps="arm"
1892 armv6_deps="arm"
1893 armv6t2_deps="arm"
1894 armv8_deps="aarch64"
1895 neon_deps_any="aarch64 arm"
1896 intrinsics_neon_deps="neon"
1897 vfp_deps_any="aarch64 arm"
1898 vfpv3_deps="vfp"
1899
1900 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1901
1902 altivec_deps="ppc"
1903 dcbzl_deps="ppc"
1904 ldbrx_deps="ppc"
1905 ppc4xx_deps="ppc"
1906 vsx_deps="altivec"
1907 power8_deps="vsx"
1908
1909 loongson_deps="mips"
1910 mips32r1_deps="mips32"
1911 mips32r2_deps="mips32"
1912 mips32r6_deps="mips32"
1913 mips64r1_deps="mips64"
1914 mips64r2_deps="mips64"
1915 mips64r6_deps="mips64"
1916
1917 vis_deps="sparc"
1918
1919 cpunop_deps="i686"
1920 x86_64_select="i686"
1921 x86_64_suggest="fast_cmov"
1922
1923 amd3dnow_deps="mmx"
1924 amd3dnowext_deps="amd3dnow"
1925 i686_deps="x86"
1926 mmx_deps="x86"
1927 mmxext_deps="mmx"
1928 sse_deps="mmxext"
1929 sse2_deps="sse"
1930 sse3_deps="sse2"
1931 ssse3_deps="sse3"
1932 sse4_deps="ssse3"
1933 sse42_deps="sse4"
1934 avx_deps="sse42"
1935 xop_deps="avx"
1936 fma3_deps="avx"
1937 fma4_deps="avx"
1938 avx2_deps="avx"
1939
1940 mmx_external_deps="x86asm"
1941 mmx_inline_deps="inline_asm x86"
1942 mmx_suggest="mmx_external mmx_inline"
1943
1944 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1945 eval dep=\$${ext}_deps
1946 eval ${ext}_external_deps='"${dep}_external"'
1947 eval ${ext}_inline_deps='"${dep}_inline"'
1948 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1949 done
1950
1951 aligned_stack_if_any="aarch64 ppc x86"
1952 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1953 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1954 fast_unaligned_if_any="aarch64 ppc x86"
1955 simd_align_16_if_any="altivec neon sse"
1956 simd_align_32_if_any="avx"
1957
1958 # system capabilities
1959 symver_if_any="symver_asm_label symver_gnu_asm"
1960 valgrind_backtrace_conflict="optimizations"
1961 valgrind_backtrace_deps="valgrind_valgrind_h"
1962
1963 # threading support
1964 atomics_gcc_if="sync_val_compare_and_swap"
1965 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1966 atomics_win32_if="MemoryBarrier"
1967 atomics_native_if_any="$ATOMICS_LIST"
1968 w32threads_deps="atomics_native"
1969 threads_if_any="$THREADS_LIST"
1970
1971 # subsystems
1972 cbs_h264_select="cbs golomb"
1973 cbs_h265_select="cbs golomb"
1974 cbs_mpeg2_select="cbs"
1975 dct_select="rdft"
1976 dirac_parse_select="golomb"
1977 error_resilience_select="me_cmp"
1978 faandct_deps="faan"
1979 faandct_select="fdctdsp"
1980 faanidct_deps="faan"
1981 faanidct_select="idctdsp"
1982 h264dsp_select="startcode"
1983 hevc_ps_select="golomb"
1984 intrax8_select="blockdsp idctdsp"
1985 mdct_select="fft"
1986 rdft_select="fft"
1987 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1988 mpeg_er_select="error_resilience"
1989 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1990 mpegaudiodsp_select="dct"
1991 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1992 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1993 vc1dsp_select="h264chroma qpeldsp startcode"
1994
1995 # decoders / encoders
1996 aac_decoder_select="adts_header imdct15 mdct sinewin"
1997 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1998 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1999 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2000 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2001 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2002 adpcm_g722_decoder_select="g722dsp"
2003 adpcm_g722_encoder_select="g722dsp"
2004 aic_decoder_select="golomb idctdsp"
2005 alac_encoder_select="lpc"
2006 als_decoder_select="bswapdsp"
2007 amrnb_decoder_select="lsp"
2008 amrwb_decoder_select="lsp"
2009 amv_decoder_select="sp5x_decoder"
2010 ape_decoder_select="bswapdsp"
2011 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2012 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2013 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2014 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2015 atrac1_decoder_select="mdct sinewin"
2016 atrac3_decoder_select="mdct"
2017 atrac3p_decoder_select="mdct sinewin"
2018 bink_decoder_select="blockdsp hpeldsp"
2019 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2020 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2021 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2022 clearvideo_decoder_select="idctdsp"
2023 cllc_decoder_select="bswapdsp"
2024 comfortnoise_encoder_select="lpc"
2025 cook_decoder_select="audiodsp mdct sinewin"
2026 cscd_decoder_select="lzo"
2027 cscd_decoder_suggest="zlib"
2028 dca_decoder_select="fmtconvert mdct"
2029 dds_decoder_select="texturedsp"
2030 dnxhd_decoder_select="blockdsp idctdsp"
2031 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2032 dvvideo_decoder_select="dvprofile idctdsp"
2033 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2034 dxa_decoder_deps="zlib"
2035 dxv_decoder_select="lzf texturedsp"
2036 eac3_decoder_select="ac3_decoder"
2037 eac3_encoder_select="ac3_encoder"
2038 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2039 eatgq_decoder_select="aandcttables idctdsp"
2040 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2041 exr_decoder_deps="zlib"
2042 ffv1_decoder_select="rangecoder"
2043 ffv1_encoder_select="rangecoder"
2044 ffvhuff_decoder_select="huffyuv_decoder"
2045 ffvhuff_encoder_select="huffyuv_encoder"
2046 fic_decoder_select="golomb"
2047 flac_decoder_select="flacdsp"
2048 flac_encoder_select="bswapdsp flacdsp lpc"
2049 flashsv_decoder_deps="zlib"
2050 flashsv_encoder_deps="zlib"
2051 flashsv2_decoder_deps="zlib"
2052 flv_decoder_select="h263_decoder"
2053 flv_encoder_select="h263_encoder"
2054 fourxm_decoder_select="blockdsp bswapdsp"
2055 fraps_decoder_select="bswapdsp huffman"
2056 g2m_decoder_deps="zlib"
2057 g2m_decoder_select="blockdsp idctdsp jpegtables"
2058 h261_decoder_select="mpeg_er mpegvideo"
2059 h261_encoder_select="aandcttables mpegvideoenc"
2060 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2061 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2062 h263i_decoder_select="h263_decoder"
2063 h263p_encoder_select="h263_encoder"
2064 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2065 h264_decoder_suggest="error_resilience"
2066 hap_decoder_select="snappy texturedsp"
2067 hap_encoder_deps="libsnappy"
2068 hap_encoder_select="texturedspenc"
2069 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2070 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2071 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2072 iac_decoder_select="imc_decoder"
2073 imc_decoder_select="bswapdsp fft mdct sinewin"
2074 indeo3_decoder_select="hpeldsp"
2075 indeo4_decoder_select="ividsp"
2076 indeo5_decoder_select="ividsp"
2077 interplay_video_decoder_select="hpeldsp"
2078 jpegls_decoder_select="mjpeg_decoder"
2079 jv_decoder_select="blockdsp"
2080 lagarith_decoder_select="huffyuvdsp"
2081 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2082 magicyuv_decoder_select="huffyuvdsp"
2083 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2084 metasound_decoder_select="lsp mdct sinewin"
2085 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2086 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2087 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2088 mjpegb_decoder_select="mjpeg_decoder"
2089 mlp_decoder_select="mlp_parser"
2090 motionpixels_decoder_select="bswapdsp"
2091 mp1_decoder_select="mpegaudio"
2092 mp1float_decoder_select="mpegaudio"
2093 mp2_decoder_select="mpegaudio"
2094 mp2float_decoder_select="mpegaudio"
2095 mp3_decoder_select="mpegaudio"
2096 mp3adu_decoder_select="mpegaudio"
2097 mp3adufloat_decoder_select="mpegaudio"
2098 mp3float_decoder_select="mpegaudio"
2099 mp3on4_decoder_select="mpegaudio"
2100 mp3on4float_decoder_select="mpegaudio"
2101 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2102 mpc8_decoder_select="mpegaudiodsp"
2103 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2104 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2105 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2106 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2107 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2108 mpeg4_encoder_select="h263_encoder"
2109 msa1_decoder_select="mss34dsp"
2110 msmpeg4v1_decoder_select="h263_decoder"
2111 msmpeg4v2_decoder_select="h263_decoder"
2112 msmpeg4v2_encoder_select="h263_encoder"
2113 msmpeg4v3_decoder_select="h263_decoder"
2114 msmpeg4v3_encoder_select="h263_encoder"
2115 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2116 mts2_decoder_select="mss34dsp"
2117 mxpeg_decoder_select="mjpeg_decoder"
2118 nellymoser_decoder_select="mdct sinewin"
2119 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2120 nuv_decoder_select="idctdsp lzo"
2121 on2avc_decoder_select="mdct"
2122 opus_decoder_deps="avresample"
2123 opus_decoder_select="imdct15"
2124 png_decoder_deps="zlib"
2125 png_encoder_deps="zlib"
2126 png_encoder_select="huffyuvencdsp"
2127 prores_decoder_select="idctdsp"
2128 prores_encoder_select="fdctdsp"
2129 qcelp_decoder_select="lsp"
2130 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2131 ra_144_encoder_select="audio_frame_queue lpc"
2132 ralf_decoder_select="golomb"
2133 rscc_decoder_deps="zlib"
2134 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2135 rv10_encoder_select="h263_encoder"
2136 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2137 rv20_encoder_select="h263_encoder"
2138 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2139 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2140 screenpresso_decoder_deps="zlib"
2141 sipr_decoder_select="lsp"
2142 sp5x_decoder_select="mjpeg_decoder"
2143 svq1_decoder_select="hpeldsp"
2144 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2145 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2146 svq3_decoder_suggest="zlib"
2147 tak_decoder_select="audiodsp"
2148 tdsc_decoder_deps="zlib"
2149 tdsc_decoder_select="mjpeg_decoder"
2150 theora_decoder_select="vp3_decoder"
2151 thp_decoder_select="mjpeg_decoder"
2152 tiff_decoder_suggest="zlib"
2153 tiff_encoder_suggest="zlib"
2154 truehd_decoder_select="mlp_decoder"
2155 truemotion2_decoder_select="bswapdsp"
2156 truespeech_decoder_select="bswapdsp"
2157 tscc_decoder_deps="zlib"
2158 txd_decoder_select="texturedsp"
2159 twinvq_decoder_select="mdct lsp sinewin"
2160 utvideo_decoder_select="bswapdsp huffyuvdsp"
2161 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2162 vble_decoder_select="huffyuvdsp"
2163 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2164 vc1image_decoder_select="vc1_decoder"
2165 vorbis_decoder_select="mdct"
2166 vorbis_encoder_select="mdct"
2167 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2168 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2169 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2170 vp6a_decoder_select="vp6_decoder"
2171 vp6f_decoder_select="vp6_decoder"
2172 vp7_decoder_select="h264pred videodsp vp8dsp"
2173 vp8_decoder_select="h264pred videodsp vp8dsp"
2174 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2175 webp_decoder_select="vp8_decoder"
2176 wmapro_decoder_select="mdct sinewin wma_freqs"
2177 wmav1_decoder_select="mdct sinewin wma_freqs"
2178 wmav1_encoder_select="mdct sinewin wma_freqs"
2179 wmav2_decoder_select="mdct sinewin wma_freqs"
2180 wmav2_encoder_select="mdct sinewin wma_freqs"
2181 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2182 wmv1_decoder_select="h263_decoder"
2183 wmv1_encoder_select="h263_encoder"
2184 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2185 wmv2_encoder_select="h263_encoder wmv2dsp"
2186 wmv3_decoder_select="vc1_decoder"
2187 wmv3image_decoder_select="wmv3_decoder"
2188 zerocodec_decoder_deps="zlib"
2189 zlib_decoder_deps="zlib"
2190 zlib_encoder_deps="zlib"
2191 zmbv_decoder_deps="zlib"
2192 zmbv_encoder_deps="zlib"
2193
2194 # hardware accelerators
2195 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2196 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2197 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2198 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2199
2200 h263_vaapi_hwaccel_deps="vaapi"
2201 h263_vaapi_hwaccel_select="h263_decoder"
2202 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2203 h264_cuvid_hwaccel_select="h264_decoder"
2204 h264_d3d11va_hwaccel_deps="d3d11va"
2205 h264_d3d11va_hwaccel_select="h264_decoder"
2206 h264_d3d11va2_hwaccel_deps="d3d11va"
2207 h264_d3d11va2_hwaccel_select="h264_decoder"
2208 h264_dxva2_hwaccel_deps="dxva2"
2209 h264_dxva2_hwaccel_select="h264_decoder"
2210 h264_mmal_hwaccel_deps="mmal"
2211 h264_qsv_hwaccel_deps="libmfx"
2212 h264_vaapi_hwaccel_deps="vaapi"
2213 h264_vaapi_hwaccel_select="h264_decoder"
2214 h264_vda_hwaccel_deps="vda"
2215 h264_vda_hwaccel_select="h264_decoder"
2216 h264_vda_old_hwaccel_deps="vda"
2217 h264_vda_old_hwaccel_select="h264_decoder"
2218 h264_vdpau_hwaccel_deps="vdpau"
2219 h264_vdpau_hwaccel_select="h264_decoder"
2220 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2221 hevc_cuvid_hwaccel_select="hevc_decoder"
2222 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2223 hevc_d3d11va_hwaccel_select="hevc_decoder"
2224 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2225 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2226 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2227 hevc_dxva2_hwaccel_select="hevc_decoder"
2228 hevc_qsv_hwaccel_deps="libmfx"
2229 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2230 hevc_vaapi_hwaccel_select="hevc_decoder"
2231 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2232 hevc_vdpau_hwaccel_select="hevc_decoder"
2233 mpeg1_vdpau_hwaccel_deps="vdpau"
2234 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2235 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2236 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2238 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_dxva2_hwaccel_deps="dxva2"
2240 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2241 mpeg2_mmal_hwaccel_deps="mmal"
2242 mpeg2_qsv_hwaccel_deps="libmfx"
2243 mpeg2_vaapi_hwaccel_deps="vaapi"
2244 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2245 mpeg2_vdpau_hwaccel_deps="vdpau"
2246 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2247 mpeg4_vaapi_hwaccel_deps="vaapi"
2248 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2249 mpeg4_vdpau_hwaccel_deps="vdpau"
2250 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2251 vc1_d3d11va_hwaccel_deps="d3d11va"
2252 vc1_d3d11va_hwaccel_select="vc1_decoder"
2253 vc1_d3d11va2_hwaccel_deps="d3d11va"
2254 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2255 vc1_dxva2_hwaccel_deps="dxva2"
2256 vc1_dxva2_hwaccel_select="vc1_decoder"
2257 vc1_mmal_hwaccel_deps="mmal"
2258 vc1_qsv_hwaccel_deps="libmfx"
2259 vc1_vaapi_hwaccel_deps="vaapi"
2260 vc1_vaapi_hwaccel_select="vc1_decoder"
2261 vc1_vdpau_hwaccel_deps="vdpau"
2262 vc1_vdpau_hwaccel_select="vc1_decoder"
2263 vp8_qsv_hwaccel_deps="libmfx"
2264 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2265 vp8_vaapi_hwaccel_select="vp8_decoder"
2266 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2267 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2268 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2269 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2270 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2271
2272 # hardware-accelerated codecs
2273 nvenc_deps_any="libdl LoadLibrary"
2274 omx_deps="libdl pthreads"
2275 omx_rpi_select="omx"
2276 qsv_deps="libmfx"
2277 qsvdec_select="qsv"
2278 qsvenc_select="qsv"
2279 vaapi_encode_deps="vaapi"
2280
2281 hwupload_cuda_filter_deps="cuda"
2282 scale_npp_filter_deps="cuda libnpp"
2283
2284 h264_mmal_decoder_deps="mmal"
2285 h264_nvenc_encoder_deps="nvenc"
2286 h264_omx_encoder_deps="omx"
2287 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2288 h264_qsv_encoder_select="qsvenc"
2289 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2290 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2291 hevc_nvenc_encoder_deps="nvenc"
2292 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2293 hevc_qsv_encoder_select="hevc_ps qsvenc"
2294 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2295 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2296 mjpeg_qsv_encoder_deps="libmfx"
2297 mjpeg_qsv_encoder_select="qsvenc"
2298 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2299 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2300 mpeg2_mmal_decoder_deps="mmal"
2301 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2302 mpeg2_qsv_encoder_select="qsvenc"
2303 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2304 mpeg2_vaapi_encoder_select="vaapi_encode"
2305 mpeg4_omx_encoder_deps="omx"
2306 vc1_mmal_decoder_deps="mmal"
2307 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2308 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2309 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2310 vp8_vaapi_encoder_select="vaapi_encode"
2311 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2312 vp9_vaapi_encoder_select="vaapi_encode"
2313
2314 nvenc_h264_encoder_select="h264_nvenc_encoder"
2315 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2316
2317 # parsers
2318 aac_parser_select="adts_header"
2319 h264_parser_select="golomb h264dsp h264parse"
2320 hevc_parser_select="hevc_ps"
2321 mpegaudio_parser_select="mpegaudioheader"
2322 mpegvideo_parser_select="mpegvideo"
2323 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2324 vc1_parser_select="vc1dsp"
2325
2326 # bitstream_filters
2327 aac_adtstoasc_bsf_select="adts_header"
2328 h264_metadata_bsf_select="cbs_h264"
2329 h264_redundant_pps_bsf_select="cbs_h264"
2330 hevc_metadata_bsf_select="cbs_h265"
2331 mjpeg2jpeg_bsf_select="jpegtables"
2332 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2333
2334 # external libraries
2335 avisynth_deps="LoadLibrary"
2336 avxsynth_deps="libdl"
2337 avisynth_demuxer_deps_any="avisynth avxsynth"
2338 avisynth_demuxer_select="riffdec"
2339 libdcadec_decoder_deps="libdcadec"
2340 libfaac_encoder_deps="libfaac"
2341 libfaac_encoder_select="audio_frame_queue"
2342 libfdk_aac_decoder_deps="libfdk_aac"
2343 libfdk_aac_encoder_deps="libfdk_aac"
2344 libfdk_aac_encoder_select="audio_frame_queue"
2345 libgsm_decoder_deps="libgsm"
2346 libgsm_encoder_deps="libgsm"
2347 libgsm_ms_decoder_deps="libgsm"
2348 libgsm_ms_encoder_deps="libgsm"
2349 libilbc_decoder_deps="libilbc"
2350 libilbc_encoder_deps="libilbc"
2351 libkvazaar_encoder_deps="libkvazaar"
2352 libmp3lame_encoder_deps="libmp3lame"
2353 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2354 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2355 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2356 libopencore_amrnb_encoder_select="audio_frame_queue"
2357 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2358 libopenh264_decoder_deps="libopenh264"
2359 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2360 libopenh264_encoder_deps="libopenh264"
2361 libopenjpeg_decoder_deps="libopenjpeg"
2362 libopenjpeg_encoder_deps="libopenjpeg"
2363 libopus_decoder_deps="libopus"
2364 libopus_encoder_deps="libopus"
2365 libopus_encoder_select="audio_frame_queue"
2366 libschroedinger_decoder_deps="libschroedinger"
2367 libschroedinger_encoder_deps="libschroedinger"
2368 libspeex_decoder_deps="libspeex"
2369 libspeex_encoder_deps="libspeex"
2370 libspeex_encoder_select="audio_frame_queue"
2371 libtheora_encoder_deps="libtheora"
2372 libtwolame_encoder_deps="libtwolame"
2373 libvo_aacenc_encoder_deps="libvo_aacenc"
2374 libvo_aacenc_encoder_select="audio_frame_queue"
2375 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2376 libvorbis_encoder_deps="libvorbis"
2377 libvorbis_encoder_select="audio_frame_queue"
2378 libvpx_vp8_decoder_deps="libvpx"
2379 libvpx_vp8_encoder_deps="libvpx"
2380 libvpx_vp9_decoder_deps="libvpx"
2381 libvpx_vp9_encoder_deps="libvpx"
2382 libwavpack_encoder_deps="libwavpack"
2383 libwavpack_encoder_select="audio_frame_queue"
2384 libwebp_encoder_deps="libwebp"
2385 libx262_encoder_deps="libx262"
2386 libx264_encoder_deps="libx264"
2387 libx265_encoder_deps="libx265"
2388 libxavs_encoder_deps="libxavs"
2389 libxvid_encoder_deps="libxvid mkstemp"
2390
2391 # demuxers / muxers
2392 ac3_demuxer_select="ac3_parser"
2393 asf_demuxer_select="riffdec"
2394 asf_muxer_select="riffenc"
2395 asf_stream_muxer_select="asf_muxer"
2396 avi_demuxer_select="iso_media riffdec"
2397 avi_muxer_select="riffenc"
2398 caf_demuxer_select="iso_media riffdec"
2399 dash_muxer_select="mp4_muxer"
2400 dirac_demuxer_select="dirac_parser"
2401 dv_demuxer_select="dvprofile"
2402 dv_muxer_select="dvprofile"
2403 dxa_demuxer_select="riffdec"
2404 eac3_demuxer_select="ac3_parser"
2405 f4v_muxer_select="mov_muxer"
2406 flac_demuxer_select="flac_parser"
2407 hds_muxer_select="flv_muxer"
2408 hls_muxer_select="mpegts_muxer"
2409 ipod_muxer_select="mov_muxer"
2410 ismv_muxer_select="mov_muxer"
2411 matroska_audio_muxer_select="matroska_muxer"
2412 matroska_demuxer_select="iso_media riffdec"
2413 matroska_demuxer_suggest="bzlib lzo zlib"
2414 matroska_muxer_select="iso_media riffenc"
2415 mmf_muxer_select="riffenc"
2416 mov_demuxer_select="iso_media riffdec"
2417 mov_demuxer_suggest="zlib"
2418 mov_muxer_select="iso_media riffenc rtpenc_chain"
2419 mp3_demuxer_select="mpegaudio_parser"
2420 mp3_muxer_select="mpegaudioheader"
2421 mp4_muxer_select="mov_muxer"
2422 mpegts_demuxer_select="iso_media"
2423 mpegts_muxer_select="adts_muxer latm_muxer"
2424 mpegtsraw_demuxer_select="mpegts_demuxer"
2425 mxf_d10_muxer_select="mxf_muxer"
2426 nut_muxer_select="riffenc"
2427 nuv_demuxer_select="riffdec"
2428 oga_muxer_select="ogg_muxer"
2429 ogg_demuxer_select="dirac_parse"
2430 opus_muxer_select="ogg_muxer"
2431 psp_muxer_select="mov_muxer"
2432 rtp_demuxer_select="sdp_demuxer"
2433 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2434 rtsp_demuxer_select="http_protocol rtpdec"
2435 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2436 sap_demuxer_select="sdp_demuxer"
2437 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2438 sdp_demuxer_select="rtpdec"
2439 smoothstreaming_muxer_select="ismv_muxer"
2440 spdif_demuxer_select="adts_header"
2441 spdif_muxer_select="adts_header"
2442 spx_muxer_select="ogg_muxer"
2443 swf_demuxer_suggest="zlib"
2444 tak_demuxer_select="tak_parser"
2445 tg2_muxer_select="mov_muxer"
2446 tgp_muxer_select="mov_muxer"
2447 w64_demuxer_select="wav_demuxer"
2448 wav_demuxer_select="riffdec"
2449 wav_muxer_select="riffenc"
2450 webm_muxer_select="iso_media riffenc"
2451 wtv_demuxer_select="mpegts_demuxer riffdec"
2452 xmv_demuxer_select="riffdec"
2453 xwma_demuxer_select="riffdec"
2454
2455 # indevs / outdevs
2456 alsa_indev_deps="alsa"
2457 alsa_outdev_deps="alsa"
2458 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2459 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2460 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2461 dv1394_indev_deps="dv1394"
2462 dv1394_indev_select="dv_demuxer"
2463 fbdev_indev_deps="linux_fb_h"
2464 jack_indev_deps="libjack"
2465 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2466 libcdio_indev_deps="libcdio"
2467 libdc1394_indev_deps="libdc1394"
2468 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2469 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2470 pulse_indev_deps="libpulse"
2471 sndio_indev_deps="sndio"
2472 sndio_outdev_deps="sndio"
2473 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2474 vfwcap_indev_deps="vfw32 vfwcap_defines"
2475 xcbgrab_indev_deps="libxcb libxcb_shape"
2476 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2477
2478 # protocols
2479 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2480 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2481 ffrtmpcrypt_protocol_select="tcp_protocol"
2482 ffrtmphttp_protocol_conflict="librtmp_protocol"
2483 ffrtmphttp_protocol_select="http_protocol"
2484 gopher_protocol_select="network"
2485 http_protocol_select="tcp_protocol"
2486 http_protocol_suggest="zlib"
2487 httpproxy_protocol_select="tcp_protocol"
2488 httpproxy_protocol_suggest="zlib"
2489 https_protocol_select="tls_protocol"
2490 https_protocol_suggest="zlib"
2491 icecast_protocol_select="http_protocol"
2492 librtmp_protocol_deps="librtmp"
2493 librtmpe_protocol_deps="librtmp"
2494 librtmps_protocol_deps="librtmp"
2495 librtmpt_protocol_deps="librtmp"
2496 librtmpte_protocol_deps="librtmp"
2497 mmsh_protocol_select="http_protocol"
2498 mmst_protocol_select="network"
2499 rtmp_protocol_conflict="librtmp_protocol"
2500 rtmp_protocol_select="tcp_protocol"
2501 rtmp_protocol_suggest="zlib"
2502 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2503 rtmpe_protocol_suggest="zlib"
2504 rtmps_protocol_conflict="librtmp_protocol"
2505 rtmps_protocol_select="tls_protocol"
2506 rtmps_protocol_suggest="zlib"
2507 rtmpt_protocol_select="ffrtmphttp_protocol"
2508 rtmpt_protocol_suggest="zlib"
2509 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2510 rtmpte_protocol_suggest="zlib"
2511 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2512 rtmpts_protocol_suggest="zlib"
2513 rtp_protocol_select="udp_protocol"
2514 sctp_protocol_deps="struct_sctp_event_subscribe"
2515 sctp_protocol_select="network"
2516 srtp_protocol_select="rtp_protocol srtp"
2517 tcp_protocol_select="network"
2518 tls_protocol_deps_any="gnutls openssl"
2519 tls_protocol_select="tcp_protocol"
2520 udp_protocol_select="network"
2521 unix_protocol_deps="sys_un_h"
2522 unix_protocol_select="network"
2523
2524 # filters
2525 asyncts_filter_deps="avresample"
2526 blackframe_filter_deps="gpl"
2527 boxblur_filter_deps="gpl"
2528 bs2b_filter_deps="libbs2b"
2529 cropdetect_filter_deps="gpl"
2530 deinterlace_qsv_filter_deps="libmfx"
2531 deinterlace_vaapi_filter_deps="vaapi"
2532 delogo_filter_deps="gpl"
2533 drawtext_filter_deps="libfreetype"
2534 drawtext_filter_suggest="libfontconfig"
2535 frei0r_filter_deps="frei0r libdl"
2536 frei0r_src_filter_deps="frei0r libdl"
2537 hdcd_filter_deps="libhdcd"
2538 hqdn3d_filter_deps="gpl"
2539 interlace_filter_deps="gpl"
2540 movie_filter_deps="avcodec avformat"
2541 ocv_filter_deps="libopencv"
2542 resample_filter_deps="avresample"
2543 scale_filter_deps="swscale"
2544 scale_qsv_filter_deps="libmfx"
2545 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2546
2547 # examples
2548 decode_audio_example_deps="avcodec avutil"
2549 decode_video_example_deps="avcodec avutil"
2550 encode_audio_example_deps="avcodec avutil"
2551 encode_video_example_deps="avcodec avutil"
2552 filter_audio_example_deps="avfilter avutil"
2553 metadata_example_deps="avformat avutil"
2554 output_example_deps="avcodec avformat avresample avutil swscale"
2555 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2556 transcode_aac_example_deps="avcodec avformat avresample"
2557
2558 # EXTRALIBS_LIST
2559 cpu_init_extralibs="pthreads_extralibs"
2560 cws2fws_extralibs="zlib_extralibs"
2561
2562 # libraries, in linking order
2563 avcodec_deps="avutil"
2564 avcodec_select="null_bsf"
2565 avdevice_deps="avformat avcodec avutil"
2566 avfilter_deps="avutil"
2567 avformat_deps="avcodec avutil"
2568 avformat_suggest="network"
2569 avresample_deps="avutil"
2570 swscale_deps="avutil"
2571
2572 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2573 avdevice_extralibs="libm_extralibs"
2574 avformat_extralibs="libm_extralibs"
2575 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2576 avresample_extralibs="libm_extralibs"
2577 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"
2578 swscale_extralibs="libm_extralibs"
2579
2580 # programs
2581 avconv_deps="avcodec avfilter avformat avresample swscale"
2582 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2583 fps_filter null_filter resample_filter scale_filter
2584 trim_filter"
2585 avconv_suggest="psapi shell32"
2586 avplay_deps="avcodec avfilter avformat avresample sdl"
2587 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2588 avplay_suggest="shell32"
2589 avprobe_deps="avcodec avformat"
2590 avprobe_suggest="shell32"
2591
2592 # documentation
2593 pod2man_deps="doc"
2594 texi2html_deps="doc"
2595
2596 # default parameters
2597
2598 logfile="avbuild/config.log"
2599
2600 # installation paths
2601 prefix_default="/usr/local"
2602 bindir_default='${prefix}/bin'
2603 datadir_default='${prefix}/share/avconv'
2604 docdir_default='${prefix}/share/doc/libav'
2605 incdir_default='${prefix}/include'
2606 libdir_default='${prefix}/lib'
2607 mandir_default='${prefix}/share/man'
2608 shlibdir_default="$libdir_default"
2609
2610 # toolchain
2611 ar_default="ar"
2612 cc_default="gcc"
2613 host_cc_default="gcc"
2614 x86asmexe_default="nasm"
2615 ln_s="ln -s -f"
2616 nm_default="nm -g"
2617 pkg_config_default=pkg-config
2618 ranlib="ranlib"
2619 strip="strip"
2620 version_script='--version-script'
2621
2622 # machine
2623 arch_default=$(uname -m)
2624 cpu="generic"
2625 intrinsics="none"
2626
2627 # OS
2628 target_os_default=$(tolower $(uname -s))
2629 host_os=$target_os_default
2630
2631 # configurable options
2632 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2633
2634 enable asm
2635 enable debug
2636 enable doc
2637 enable faan faandct faanidct
2638 enable optimizations
2639 enable safe_bitstream_reader
2640 enable static
2641 enable swscale_alpha
2642 enable valgrind_backtrace
2643
2644 # By default, enable only those hwaccels that have no external dependencies.
2645 enable d3d11va dxva2 vda vdpau
2646
2647 # internal components are enabled by default
2648 enable $EXTRALIBS_LIST
2649
2650 # Avoid external, non-system, libraries getting enabled by dependency resolution
2651 disable $EXTERNAL_LIBRARY_LIST
2652
2653 # build settings
2654 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2655 LIBPREF="lib"
2656 LIBSUF=".a"
2657 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2658 SLIBPREF="lib"
2659 SLIBSUF=".so"
2660 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2661 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2662 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2663 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2664 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2665 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2666 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2667
2668 asflags_filter=echo
2669 cflags_filter=echo
2670 ldflags_filter=echo
2671
2672 AS_C='-c'
2673 AS_O='-o $@'
2674 CC_C='-c'
2675 CC_E='-E -o $@'
2676 CC_O='-o $@'
2677 OBJCC_C='-c'
2678 OBJCC_E='-E -o $@'
2679 OBJCC_O='-o $@'
2680 X86ASM_O='-o $@'
2681 LD_O='-o $@'
2682 LD_LIB='-l%'
2683 LD_PATH='-L'
2684 HOSTCC_C='-c'
2685 HOSTCC_E='-E -o $@'
2686 HOSTCC_O='-o $@'
2687 HOSTLD_O='-o $@'
2688
2689 host_extralibs='-lm'
2690 host_cflags_filter=echo
2691 host_ldflags_filter=echo
2692
2693 target_path='$(CURDIR)'
2694
2695 # since the object filename is not given with the -MM flag, the compiler
2696 # is only able to print the basename, and we must add the path ourselves
2697 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2698 DEPFLAGS='-MM'
2699
2700 mkdir -p avbuild
2701
2702 # find source path
2703 if test -f configure; then
2704 source_path=.
2705 else
2706 source_path=$(cd $(dirname "$0"); pwd)
2707 echo "$source_path" | grep -q '[[:blank:]]' &&
2708 die "Out of tree builds are impossible with whitespace in source path."
2709 test -e "$source_path/config.h" &&
2710 die "Out of tree builds are impossible with config.h in source dir."
2711 fi
2712
2713 for v in "$@"; do
2714 r=${v#*=}
2715 l=${v%"$r"}
2716 r=$(sh_quote "$r")
2717 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2718 done
2719
2720 find_things(){
2721 thing=$1
2722 pattern=$2
2723 file=$source_path/$3
2724 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2725 }
2726
2727 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2728 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2729 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2730 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2731 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2732 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2733 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2734 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2735 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2736
2737 find_things_extern(){
2738 thing=$1
2739 pattern=$2
2740 file=$source_path/$3
2741 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2742 }
2743
2744 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2745 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2746
2747 AVCODEC_COMPONENTS_LIST="
2748 $BSF_LIST
2749 $DECODER_LIST
2750 $ENCODER_LIST
2751 $HWACCEL_LIST
2752 $PARSER_LIST
2753 "
2754
2755 AVDEVICE_COMPONENTS_LIST="
2756 $INDEV_LIST
2757 $OUTDEV_LIST
2758 "
2759
2760 AVFILTER_COMPONENTS_LIST="
2761 $FILTER_LIST
2762 "
2763
2764 AVFORMAT_COMPONENTS_LIST="
2765 $DEMUXER_LIST
2766 $MUXER_LIST
2767 $PROTOCOL_LIST
2768 "
2769
2770 ALL_COMPONENTS="
2771 $AVCODEC_COMPONENTS_LIST
2772 $AVDEVICE_COMPONENTS_LIST
2773 $AVFILTER_COMPONENTS_LIST
2774 $AVFORMAT_COMPONENTS_LIST
2775 "
2776
2777 for n in $COMPONENT_LIST; do
2778 v=$(toupper ${n%s})_LIST
2779 eval enable \$$v
2780 eval ${n}_if_any="\$$v"
2781 done
2782
2783 enable $ARCH_EXT_LIST
2784
2785 die_unknown(){
2786 echo "Unknown option \"$1\"."
2787 echo "See $0 --help for available options."
2788 exit 1
2789 }
2790
2791 print_3_columns() {
2792 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2793 }
2794
2795 show_list() {
2796 suffix=_$1
2797 shift
2798 echo $* | sed s/$suffix//g | print_3_columns
2799 exit 0
2800 }
2801
2802 rand_list(){
2803 IFS=', '
2804 set -- $*
2805 unset IFS
2806 for thing; do
2807 comp=${thing%:*}
2808 prob=${thing#$comp}
2809 prob=${prob#:}
2810 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2811 echo "prob ${prob:-0.5}"
2812 printf '%s\n' $comp
2813 done
2814 }
2815
2816 do_random(){
2817 action=$1
2818 shift
2819 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2820 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2821 }
2822
2823 for opt do
2824 optval="${opt#*=}"
2825 case "$opt" in
2826 --extra-ldflags=*)
2827 add_ldflags $optval
2828 ;;
2829 --extra-ldexeflags=*)
2830 add_ldexeflags $optval
2831 ;;
2832 --extra-ldsoflags=*)
2833 add_ldsoflags $optval
2834 ;;
2835 --extra-libs=*)
2836 add_extralibs $optval
2837 ;;
2838 --disable-devices)
2839 disable $INDEV_LIST $OUTDEV_LIST
2840 ;;
2841 --enable-debug=*)
2842 debuglevel="$optval"
2843 ;;
2844 --disable-programs)
2845 disable $PROGRAM_LIST
2846 ;;
2847 --disable-everything)
2848 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2849 ;;
2850 --disable-all)
2851 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2852 disable $LIBRARY_LIST $PROGRAM_LIST doc
2853 ;;
2854 --enable-random|--disable-random)
2855 action=${opt%%-random}
2856 do_random ${action#--} $COMPONENT_LIST
2857 ;;
2858 --enable-random=*|--disable-random=*)
2859 action=${opt%%-random=*}
2860 do_random ${action#--} $optval
2861 ;;
2862 --enable-*=*|--disable-*=*)
2863 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2864 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2865 eval list=\$$(toupper $thing)_LIST
2866 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2867 $action $(filter "$name" $list)
2868 ;;
2869 --enable-avserver|--disable-avserver*)
2870 warn "avserver has been removed, the ${opt} option is only"\
2871 "provided for compatibility and will be removed in the future"
2872 ;;
2873 --enable-yasm|--disable-yasm)
2874 warn "The ${opt} option is only provided for compatibility and will be\n"\
2875 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2876 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2877 ;;
2878 --enable-?*|--disable-?*)
2879 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2880 if is_in $option $COMPONENT_LIST; then
2881 test $action = disable && action=unset
2882 eval $action \$$(toupper ${option%s})_LIST
2883 elif is_in $option $CMDLINE_SELECT; then
2884 $action $option
2885 else
2886 die_unknown $opt
2887 fi
2888 ;;
2889 --list-*)
2890 NAME="${opt#--list-}"
2891 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2892 NAME=${NAME%s}
2893 eval show_list $NAME \$$(toupper $NAME)_LIST
2894 ;;
2895 --help|-h) show_help
2896 ;;
2897 --quiet|-q) quiet=yes
2898 ;;
2899 *)
2900 optname="${opt%%=*}"
2901 optname="${optname#--}"
2902 optname=$(echo "$optname" | sed 's/-/_/g')
2903 if is_in $optname $CMDLINE_SET; then
2904 eval $optname='$optval'
2905 elif is_in $optname $CMDLINE_APPEND; then
2906 append $optname "$optval"
2907 else
2908 die_unknown $opt
2909 fi
2910 ;;
2911 esac
2912 done
2913
2914 for e in $env; do
2915 eval "export $e"
2916 done
2917
2918 disabled logging && logfile=/dev/null
2919
2920 # Die early if licensing-related configure options are incompatible.
2921 die_license_disabled() {
2922 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2923 }
2924
2925 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2926 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2927 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2928
2929 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2930
2931 enabled_all gnutls openssl &&
2932 die "GnuTLS and OpenSSL must not be enabled at the same time."
2933
2934 # Disable all the library-specific components if the library itself
2935 # is disabled, see AVCODEC_LIST and following _LIST variables.
2936
2937 disable_components(){
2938 disabled ${1} && disable $(
2939 eval components="\$$(toupper ${1})_COMPONENTS"
2940 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2941 )
2942 }
2943
2944 map 'disable_components $v' $LIBRARY_LIST
2945
2946 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2947 set >> $logfile
2948
2949 case "$toolchain" in
2950 *-asan)
2951 cc_default="${toolchain%-asan}"
2952 add_cflags -fsanitize=address
2953 add_ldflags -fsanitize=address
2954 ;;
2955 *-msan)
2956 cc_default="${toolchain%-msan}"
2957 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2958 add_ldflags -fsanitize=memory
2959 ;;
2960 *-tsan)
2961 cc_default="${toolchain%-tsan}"
2962 add_cflags -fsanitize=thread -fPIE
2963 add_ldflags -fsanitize=thread -pie
2964 case "$toolchain" in
2965 gcc-tsan)
2966 add_cflags -fPIC
2967 add_ldflags -fPIC
2968 ;;
2969 esac
2970 ;;
2971 *-usan)
2972 cc_default="${toolchain%-usan}"
2973 add_cflags -fsanitize=undefined
2974 add_ldflags -fsanitize=undefined
2975 case "$toolchain" in
2976 clang-usan)
2977 add_cflags -O1
2978 ;;
2979 esac
2980 ;;
2981 valgrind-*)
2982 target_exec_default="valgrind"
2983 case "$toolchain" in
2984 valgrind-massif)
2985 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2986 ;;
2987 valgrind-memcheck)
2988 target_exec_args="--track-origins=yes --leak-check=full"
2989 ;;
2990 esac
2991 ;;
2992 msvc)
2993 # Check whether the current MSVC version needs the C99 converter.
2994 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2995 # support enough of C99 to build libav. Default to the new
2996 # behaviour if the regexp was unable to match anything, since this
2997 # successfully parses the version number of existing supported
2998 # versions that require the converter (MSVC 2010 and 2012).
2999 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3000 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3001 cc_default="cl"
3002 else
3003 cc_default="c99wrap cl"
3004 fi
3005 ld_default="$source_path/compat/windows/mslink"
3006 nm_default="dumpbin -symbols"
3007 ar_default="lib"
3008 case "$arch" in
3009 arm*)
3010 as_default="armasm"
3011 ;;
3012 esac
3013 target_os_default="win32"
3014 # Use a relative path for TMPDIR. This makes sure all the
3015 # ffconf temp files are written with a relative path, avoiding
3016 # issues with msys/win32 path conversion for MSVC parameters
3017 # such as -Fo<file> or -out:<file>.
3018 TMPDIR=.
3019 ;;
3020 icl)
3021 cc_default="icl"
3022 ld_default="xilink"
3023 nm_default="dumpbin -symbols"
3024 ar_default="xilib"
3025 target_os_default="win32"
3026 TMPDIR=.
3027 ;;
3028 gcov)
3029 add_cflags -fprofile-arcs -ftest-coverage
3030 add_ldflags -fprofile-arcs -ftest-coverage
3031 ;;
3032 llvm-cov)
3033 add_cflags -fprofile-arcs -ftest-coverage
3034 add_ldflags --coverage
3035 ;;
3036 hardened)
3037 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3038 add_cflags -fno-strict-overflow -fstack-protector-all
3039 add_ldflags -Wl,-z,relro -Wl,-z,now
3040 ;;
3041 ?*)
3042 die "Unknown toolchain $toolchain"
3043 ;;
3044 esac
3045
3046 test -n "$cross_prefix" && enable cross_compile
3047
3048 if enabled cross_compile; then
3049 test -n "$arch" && test -n "$target_os" ||
3050 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3051 fi
3052
3053 ar_default="${cross_prefix}${ar_default}"
3054 cc_default="${cross_prefix}${cc_default}"
3055 objcc_default="${cross_prefix}${objcc_default}"
3056 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3057 nm_default="${cross_prefix}${nm_default}"
3058 pkg_config_default="${cross_prefix}${pkg_config_default}"
3059 ranlib="${cross_prefix}${ranlib}"
3060 strip="${cross_prefix}${strip}"
3061
3062 sysinclude_default="${sysroot}/usr/include"
3063
3064 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3065 enabled cross_compile || host_cc_default=$cc
3066 set_default host_cc
3067
3068 if ! $pkg_config --version >/dev/null 2>&1; then
3069 warn "$pkg_config not found, library detection may fail."
3070 pkg_config=false
3071 fi
3072
3073 exesuf() {
3074 case $1 in
3075 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3076 esac
3077 }
3078
3079 EXESUF=$(exesuf $target_os)
3080 HOSTEXESUF=$(exesuf $host_os)
3081
3082 # set temporary file name
3083 : ${TMPDIR:=$TEMPDIR}
3084 : ${TMPDIR:=$TMP}
3085 : ${TMPDIR:=/tmp}
3086
3087 if ! check_cmd mktemp -u XXXXXX; then
3088 # simple replacement for missing mktemp
3089 # NOT SAFE FOR GENERAL USE
3090 mktemp(){
3091 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3092 echo "$tmpname"
3093 mkdir "$tmpname"
3094 }
3095 fi
3096
3097 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3098 die "Unable to create temporary directory in $TMPDIR."
3099
3100 tmpfile(){
3101 tmp="${AVTMPDIR}/test"$2
3102 (set -C; exec > $tmp) 2> /dev/null ||
3103 die "Unable to create temporary file in $AVTMPDIR."
3104 eval $1=$tmp
3105 }
3106
3107 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3108 trap 'exit 2' INT
3109
3110 tmpfile TMPASM .asm
3111 tmpfile TMPC .c
3112 tmpfile TMPE $EXESUF
3113 tmpfile TMPH .h
3114 tmpfile TMPO .o
3115 tmpfile TMPS .S
3116 tmpfile TMPSH .sh
3117 tmpfile TMPV .ver
3118
3119 unset -f mktemp
3120
3121 chmod +x $TMPE
3122
3123 # make sure we can execute files in $TMPDIR
3124 cat > $TMPSH 2>> $logfile <<EOF
3125 #! /bin/sh
3126 EOF
3127 chmod +x $TMPSH >> $logfile 2>&1
3128 if ! $TMPSH >> $logfile 2>&1; then
3129 cat <<EOF
3130 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3131 variable to another directory and make sure that it is not mounted noexec.
3132 EOF
3133 die "Sanity test failed."
3134 fi
3135
3136 armasm_flags(){
3137 for flag; do
3138 case $flag in
3139 # Filter out MSVC cl.exe options from cflags that shouldn't
3140 # be passed to gas-preprocessor
3141 -M[TD]*) ;;
3142 *) echo $flag ;;
3143 esac
3144 done
3145 }
3146
3147 ccc_flags(){
3148 for flag; do
3149 case $flag in
3150 -std=c99) echo -c99 ;;
3151 -mcpu=*) echo -arch ${flag#*=} ;;
3152 -mieee) echo -ieee ;;
3153 -O*|-fast) echo $flag ;;
3154 -fno-math-errno) echo -assume nomath_errno ;;
3155 -g) echo -g3 ;;
3156 -Wall) echo -msg_enable level2 ;;
3157 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3158 -Wl,*) echo $flag ;;
3159 -f*|-W*) ;;
3160 *) echo $flag ;;
3161 esac
3162 done
3163 }
3164
3165 cparser_flags(){
3166 for flag; do
3167 case $flag in
3168 -Wno-switch) echo -Wno-switch-enum ;;
3169 -Wno-format-zero-length) ;;
3170 -Wdisabled-optimization) ;;
3171 -Wno-pointer-sign) echo -Wno-other ;;
3172 *) echo $flag ;;
3173 esac
3174 done
3175 }
3176
3177 msvc_common_flags(){
3178 for flag; do
3179 case $flag in
3180 # In addition to specifying certain flags under the compiler
3181 # specific filters, they must be specified here as well or else the
3182 # generic catch all at the bottom will print the original flag.
3183 -Wall) ;;
3184 -Wextra) ;;
3185 -std=c99) ;;
3186 # Common flags
3187 -fomit-frame-pointer) ;;
3188 -g) echo -Z7 ;;
3189 -fno-math-errno) ;;
3190 -fno-common) ;;
3191 -fno-signed-zeros) ;;
3192 -fPIC) ;;
3193 -mthumb) ;;
3194 -march=*) ;;
3195 -lz) echo zlib.lib ;;
3196 -lx264) echo libx264.lib ;;
3197 -l*) echo ${flag#-l}.lib ;;
3198 -L*) echo -libpath:${flag#-L} ;;
3199 *) echo $flag ;;
3200 esac
3201 done
3202 }
3203
3204 msvc_flags(){
3205 msvc_common_flags "$@"
3206 for flag; do
3207 case $flag in
3208 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3209 -wd4554 ;;
3210 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3211 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3212 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3213 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3214 esac
3215 done
3216 }
3217
3218 icl_flags(){
3219 msvc_common_flags "$@"
3220 for flag; do
3221 case $flag in
3222 # Despite what Intel's documentation says -Wall, which is supported
3223 # on Windows, does enable remarks so disable them here.
3224 -Wall) echo $flag -Qdiag-disable:remark ;;
3225 -std=c99) echo -Qstd=c99 ;;
3226 esac
3227 done
3228 }
3229
3230 pgi_flags(){
3231 for flag; do
3232 case $flag in
3233 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3234 -fomit-frame-pointer) echo -Mnoframe ;;
3235 -g) echo -gopt ;;
3236 *) echo $flag ;;
3237 esac
3238 done
3239 }
3240
3241 suncc_flags(){
3242 for flag; do
3243 case $flag in
3244 -march=*|-mcpu=*)
3245 case "${flag#*=}" in
3246 native) echo -xtarget=native ;;
3247 v9|niagara) echo -xarch=sparc ;;
3248 ultrasparc) echo -xarch=sparcvis ;;
3249 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3250 i586|pentium) echo -xchip=pentium ;;
3251 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3252 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3253 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3254 pentium4*) echo -xtarget=pentium4 ;;
3255 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3256 *-sse3) echo -xarch=sse3 ;;
3257 core2) echo -xarch=ssse3 -xchip=core2 ;;
3258 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3259 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3260 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3261 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3262 k8|opteron|athlon64|athlon-fx)
3263 echo -xarch=sse2a ;;
3264 athlon*) echo -xarch=pentium_proa ;;
3265 esac
3266 ;;
3267 -std=c99) echo -xc99 ;;
3268 -fomit-frame-pointer) echo -xregs=frameptr ;;
3269 -fPIC) echo -KPIC -xcode=pic32 ;;
3270 -W*,*) echo $flag ;;
3271 -f*-*|-W*|-mimpure-text) ;;
3272 -shared) echo -G ;;
3273 *) echo $flag ;;
3274 esac
3275 done
3276 }
3277
3278 tms470_flags(){
3279 for flag; do
3280 case $flag in
3281 -march=*|-mcpu=*)
3282 case "${flag#*=}" in
3283 armv7-a|cortex-a*) echo -mv=7a8 ;;
3284 armv7-r|cortex-r*) echo -mv=7r4 ;;
3285 armv7-m|cortex-m*) echo -mv=7m3 ;;
3286 armv6*|arm11*) echo -mv=6 ;;
3287 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3288 echo -mv=5e ;;
3289 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3290 esac
3291 ;;
3292 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3293 -mfpu=vfp) echo --float_support=vfpv2 ;;
3294 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3295 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3296 -msoft-float) echo --float_support=vfplib ;;
3297 -O[0-3]|-mf=*) echo $flag ;;
3298 -g) echo -g -mn ;;
3299 -pds=*) echo $flag ;;
3300 -D*|-I*) echo $flag ;;
3301 --gcc|--abi=*) echo $flag ;;
3302 -me) echo $flag ;;
3303 esac
3304 done
3305 }
3306
3307 probe_cc(){
3308 pfx=$1
3309 _cc=$2
3310
3311 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3312 unset _ld_o _ldflags _ld_lib _ld_path
3313 unset _depflags _DEPCMD _DEPFLAGS
3314 _flags_filter=echo
3315
3316 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3317 _type=llvm_gcc
3318 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3319 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3320 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3321 _cflags_speed='-O3'
3322 _cflags_size='-Os'
3323 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3324 _type=gcc
3325 gcc_version=$($_cc --version | head -n1)
3326 gcc_basever=$($_cc -dumpversion)
3327 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3328 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3329 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3330 if ! $_cc -dumpversion | grep -q '^2\.'; then
3331 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3332 fi
3333 _cflags_speed='-O3'
3334 _cflags_size='-Os'
3335 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3336 _type=icc
3337 _ident=$($_cc --version | head -n1)
3338 _depflags='-MMD'
3339 _cflags_speed='-O3'
3340 _cflags_size='-Os'
3341 _cflags_noopt='-O1'
3342 elif $_cc -v 2>&1 | grep -q xlc; then
3343 _type=xlc
3344 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3345 _cflags_speed='-O5'
3346 _cflags_size='-O5 -qcompact'
3347 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3348 _type=ccc
3349 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3350 _DEPFLAGS='-M'
3351 _cflags_speed='-fast'
3352 _cflags_size='-O1'
3353 _flags_filter=ccc_flags
3354 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3355 test -d "$sysroot" || die "No valid sysroot specified."
3356 _type=armcc
3357 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3358 armcc_conf="$PWD/armcc.conf"
3359 $_cc --arm_linux_configure \
3360 --arm_linux_config_file="$armcc_conf" \
3361 --configure_sysroot="$sysroot" \
3362 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3363 die "Error creating armcc configuration file."
3364 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3365 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3366 as_default="${cross_prefix}gcc"
3367 _depflags='-MMD'
3368 _cflags_speed='-O3'
3369 _cflags_size='-Os'
3370 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3371 _type=tms470
3372 _ident=$($_cc -version | head -n1 | tr -s ' ')
3373 _flags='--gcc --abi=eabi -me'
3374 _cc_e='-ppl -fe=$@'
3375 _cc_o='-fe=$@'
3376 _depflags='-ppa -ppd=$(@:.o=.d)'
3377 _cflags_speed='-O3 -mf=5'
3378 _cflags_size='-O3 -mf=2'
3379 _flags_filter=tms470_flags
3380 elif $_cc -v 2>&1 | grep -q clang; then
3381 _type=clang
3382 _ident=$($_cc --version 2>/dev/null | head -n1)
3383 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3384 _cflags_speed='-O3'
3385 _cflags_size='-Os'
3386 elif $_cc -V 2>&1 | grep -q Sun; then
3387 _type=suncc
3388 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3389 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3390 _DEPFLAGS='-xM1 -xc99'
3391 _ldflags='-std=c99'
3392 _cflags_speed='-O5'
3393 _cflags_size='-O5 -xspace'
3394 _flags_filter=suncc_flags
3395 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3396 _type=pathscale
3397 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3398 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3399 _cflags_speed='-O2'
3400 _cflags_size='-Os'
3401 _flags_filter='filter_out -Wdisabled-optimization'
3402 elif $_cc -v 2>&1 | grep -q Open64; then
3403 _type=open64
3404 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3405 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3406 _cflags_speed='-O2'
3407 _cflags_size='-Os'
3408 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3409 elif $_cc -V 2>&1 | grep -q Portland; then
3410 _type=pgi
3411 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3412 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3413 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3414 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3415 _cflags_noopt="-O1"
3416 _flags_filter=pgi_flags
3417 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3418 _type=armasm
3419 _ident=$($_cc | head -n1)
3420 # 4509: "This form of conditional instruction is deprecated"
3421 _flags="-nologo -ignore 4509"
3422 _flags_filter=armasm_flags
3423 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3424 _type=msvc
3425 _ident=$($_cc 2>&1 | head -n1)
3426 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3427 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3428 _cflags_speed="-O2"
3429 _cflags_size="-O1"
3430 _cflags_noopt="-O1"
3431 if $_cc -nologo- 2>&1 | grep -q Linker; then
3432 _ld_o='-out:$@'
3433 else
3434 _ld_o='-Fe$@'
3435 fi
3436 _cc_o='-Fo$@'
3437 _cc_e='-P -Fi$@'
3438 _flags_filter=msvc_flags
3439 _ld_lib='lib%.a'
3440 _ld_path='-libpath:'
3441 _flags='-nologo'
3442 elif $_cc 2>&1 | grep -q Intel; then
3443 _type=icl
3444 _ident=$($_cc 2>&1 | head -n1)
3445 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3446 # Not only is O3 broken on 13.x+ but it is slower on all previous
3447 # versions (tested) as well.
3448 _cflags_speed="-O2"
3449 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3450 if $_cc 2>&1 | grep -q Linker; then
3451 _ld_o='-out:$@'
3452 else
3453 _ld_o='-Fe$@'
3454 fi
3455 _cc_o='-Fo$@'
3456 _cc_e='-P'
3457 _flags_filter=icl_flags
3458 _ld_lib='lib%.a'
3459 _ld_path='-libpath:'
3460 # -Qdiag-error to make icl error when seeing certain unknown arguments
3461 _flags='-nologo -Qdiag-error:4044,10157'
3462 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3463 # with MSVC which enables it by default.
3464 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3465 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3466 # lld can emulate multiple different linkers; in ms link.exe mode,
3467 # the -? parameter gives the help output which contains an identifyable
3468 # string, while it gives an error in other modes.
3469 _type=lld-link
3470 # The link.exe mode doesn't have a switch for getting the version,
3471 # but we can force it back to gnu mode and get the version from there.
3472 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3473 _ld_o='-out:$@'
3474 _flags_filter=msvc_flags
3475 _ld_lib='lib%.a'
3476 _ld_path='-libpath:'
3477 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3478 _type=cparser
3479 _ident=$($_cc --version | head -n1)
3480 _depflags='-MMD'
3481 _cflags_speed='-O4'
3482 _cflags_size='-O2'
3483 _flags_filter=cparser_flags
3484 fi
3485
3486 eval ${pfx}_type=\$_type
3487 eval ${pfx}_ident=\$_ident
3488 }
3489
3490 set_ccvars(){
3491 eval ${1}_C=\${_cc_c-\${${1}_C}}
3492 eval ${1}_E=\${_cc_e-\${${1}_E}}
3493 eval ${1}_O=\${_cc_o-\${${1}_O}}
3494
3495 if [ -n "$_depflags" ]; then
3496 eval ${1}_DEPFLAGS=\$_depflags
3497 else
3498 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3499 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3500 eval DEP${1}FLAGS=\$_flags
3501 fi
3502 }
3503
3504 probe_cc cc "$cc"
3505 cflags_filter=$_flags_filter
3506 cflags_speed=$_cflags_speed
3507 cflags_size=$_cflags_size
3508 cflags_noopt=$_cflags_noopt
3509 add_cflags $_flags $_cflags
3510 cc_ldflags=$_ldflags
3511 set_ccvars CC
3512
3513 probe_cc hostcc "$host_cc"
3514 host_cflags_filter=$_flags_filter
3515 host_cflags_speed=$_cflags_speed
3516 add_host_cflags $_flags $_cflags
3517 set_ccvars HOSTCC
3518
3519 test -n "$cc_type" && enable $cc_type ||
3520 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3521
3522 : ${as_default:=$cc}
3523 : ${objcc_default:=$cc}
3524 : ${dep_cc_default:=$cc}
3525 : ${ld_default:=$cc}
3526 : ${host_ld_default:=$host_cc}
3527 set_default ar as objcc dep_cc ld host_ld
3528
3529 probe_cc as "$as"
3530 asflags_filter=$_flags_filter
3531 add_asflags $_flags $_cflags
3532 set_ccvars AS
3533
3534 probe_cc objcc "$objcc"
3535 objcflags_filter=$_flags_filter
3536 add_objcflags $_flags $_cflags
3537 set_ccvars OBJC
3538
3539 probe_cc ld "$ld"
3540 ldflags_filter=$_flags_filter
3541 add_ldflags $_flags $_ldflags
3542 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3543 LD_O=${_ld_o-$LD_O}
3544 LD_LIB=${_ld_lib-$LD_LIB}
3545 LD_PATH=${_ld_path-$LD_PATH}
3546
3547 probe_cc hostld "$host_ld"
3548 host_ldflags_filter=$_flags_filter
3549 add_host_ldflags $_flags $_ldflags
3550 HOSTLD_O=${_ld_o-$HOSTLD_O}
3551
3552 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3553 probe_cc depcc "$dep_cc"
3554 CCDEP=${_DEPCMD:-$DEPCMD}
3555 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3556 DEPCCFLAGS=$_flags
3557 fi
3558
3559 if $ar 2>&1 | grep -q Microsoft; then
3560 arflags="-nologo"
3561 ar_o='-out:$@'
3562 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3563 arflags="rq"
3564 ar_o='$@'
3565 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3566 arflags='-Xany -r -c'
3567 ar_o='$@'
3568 else
3569 arflags="rc"
3570 ar_o='$@'
3571 fi
3572
3573 add_cflags $extra_cflags
3574 add_objcflags $extra_objcflags
3575 add_asflags $extra_cflags
3576
3577 if test -n "$sysroot"; then
3578 case "$cc_type" in
3579 gcc|llvm_gcc|clang)
3580 add_cppflags --sysroot="$sysroot"
3581 add_ldflags --sysroot="$sysroot"
3582 ;;
3583 tms470)
3584 add_cppflags -I"$sysinclude"
3585 add_ldflags --sysroot="$sysroot"
3586 ;;
3587 esac
3588 fi
3589
3590 if test "$cpu" = host; then
3591 enabled cross_compile &&
3592 die "--cpu=host makes no sense when cross-compiling."
3593
3594 case "$cc_type" in
3595 gcc|llvm_gcc)
3596 check_native(){
3597 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3598 sed -n "/cc1.*$1=/{
3599 s/.*$1=\\([^ ]*\\).*/\\1/
3600 p
3601 q
3602 }" $TMPE
3603 }
3604 cpu=$(check_native -march || check_native -mcpu)
3605 ;;
3606 esac
3607
3608 test "${cpu:-host}" = host &&
3609 die "--cpu=host not supported with compiler $cc"
3610 fi
3611
3612 # Deal with common $arch aliases
3613 case "$arch" in
3614 aarch64|arm64)
3615 arch="aarch64"
3616 ;;
3617 arm*)
3618 arch="arm"
3619 ;;
3620 mips*|IP*)
3621 case "$arch" in
3622 *el)
3623 add_cppflags -EL
3624 add_ldflags -EL
3625 ;;
3626 *eb)
3627 add_cppflags -EB
3628 add_ldflags -EB
3629 ;;
3630 esac
3631 arch="mips"
3632 ;;
3633 parisc*|hppa*)
3634 arch="parisc"
3635 ;;
3636 "Power Macintosh"|ppc*|powerpc*)
3637 arch="ppc"
3638 ;;
3639 s390|s390x)
3640 arch="s390"
3641 ;;
3642 sh4|sh)
3643 arch="sh4"
3644 ;;
3645 sun4u|sparc*)
3646 arch="sparc"
3647 ;;
3648 tilegx|tile-gx)
3649 arch="tilegx"
3650 ;;
3651 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3652 arch="x86"
3653 ;;
3654 esac
3655
3656 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3657 enable $arch
3658
3659 # Add processor-specific flags
3660 if enabled aarch64; then
3661
3662 case $cpu in
3663 armv*)
3664 cpuflags="-march=$cpu"
3665 ;;
3666 *)
3667 cpuflags="-mcpu=$cpu"
3668 ;;
3669 esac
3670
3671 elif enabled alpha; then
3672
3673 cpuflags="-mcpu=$cpu"
3674
3675 elif enabled arm; then
3676
3677 check_arm_arch() {
3678 check_cpp_condition stddef.h \
3679 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3680 $cpuflags
3681 }
3682
3683 probe_arm_arch() {
3684 if check_arm_arch 4; then echo armv4
3685 elif check_arm_arch 4T; then echo armv4t
3686 elif check_arm_arch 5; then echo armv5
3687 elif check_arm_arch 5E; then echo armv5e
3688 elif check_arm_arch 5T; then echo armv5t
3689 elif check_arm_arch 5TE; then echo armv5te
3690 elif check_arm_arch 5TEJ; then echo armv5te
3691 elif check_arm_arch 6; then echo armv6
3692 elif check_arm_arch 6J; then echo armv6j
3693 elif check_arm_arch 6K; then echo armv6k
3694 elif check_arm_arch 6Z; then echo armv6z
3695 elif check_arm_arch 6ZK; then echo armv6zk
3696 elif check_arm_arch 6T2; then echo armv6t2
3697 elif check_arm_arch 7; then echo armv7
3698 elif check_arm_arch 7A 7_A; then echo armv7-a
3699 elif check_arm_arch 7S; then echo armv7-a
3700 elif check_arm_arch 7R 7_R; then echo armv7-r
3701 elif check_arm_arch 7M 7_M; then echo armv7-m
3702 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3703 elif check_arm_arch 8A 8_A; then echo armv8-a
3704 fi
3705 }
3706
3707 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3708
3709 case $cpu in
3710 armv*)
3711 cpuflags="-march=$cpu"
3712 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3713 ;;
3714 *)
3715 cpuflags="-mcpu=$cpu"
3716 case $cpu in
3717 cortex-a*) subarch=armv7a ;;
3718 cortex-r*) subarch=armv7r ;;
3719 cortex-m*) enable thumb; subarch=armv7m ;;
3720 arm11*) subarch=armv6 ;;
3721 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3722 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3723 *) subarch=$(probe_arm_arch) ;;
3724 esac
3725 ;;
3726 esac
3727
3728 case "$subarch" in
3729 armv5t*) enable fast_clz ;;
3730 armv[6-8]*) enable fast_clz fast_unaligned ;;
3731 esac
3732
3733 elif enabled avr32; then
3734
3735 case $cpu in
3736 ap7[02]0[0-2])
3737 subarch="avr32_ap"
3738 cpuflags="-mpart=$cpu"
3739 ;;
3740 ap)
3741 subarch="avr32_ap"
3742 cpuflags="-march=$cpu"
3743 ;;
3744 uc3[ab]*)
3745 subarch="avr32_uc"
3746 cpuflags="-mcpu=$cpu"
3747 ;;
3748 uc)
3749 subarch="avr32_uc"
3750 cpuflags="-march=$cpu"
3751 ;;
3752 esac
3753
3754 elif enabled bfin; then
3755
3756 cpuflags="-mcpu=$cpu"
3757
3758 elif enabled mips; then
3759
3760 cpuflags="-march=$cpu"
3761
3762 elif enabled ppc; then
3763
3764 disable ldbrx
3765
3766 case $(tolower $cpu) in
3767 601|ppc601|powerpc601)
3768 cpuflags="-mcpu=601"
3769 disable altivec
3770 ;;
3771 603*|ppc603*|powerpc603*)
3772 cpuflags="-mcpu=603"
3773 disable altivec
3774 ;;
3775 604*|ppc604*|powerpc604*)
3776 cpuflags="-mcpu=604"
3777 disable altivec
3778 ;;
3779 g3|75*|ppc75*|powerpc75*)
3780 cpuflags="-mcpu=750"
3781 disable altivec
3782 ;;
3783 g4|745*|ppc745*|powerpc745*)
3784 cpuflags="-mcpu=7450"
3785 disable vsx
3786 ;;
3787 74*|ppc74*|powerpc74*)
3788 cpuflags="-mcpu=7400"
3789 disable vsx
3790 ;;
3791 g5|970|ppc970|powerpc970)
3792 cpuflags="-mcpu=970"
3793 disable vsx
3794 ;;
3795 power[3-6]*)
3796 cpuflags="-mcpu=$cpu"
3797 disable vsx
3798 ;;
3799 power[7-8]*)
3800 cpuflags="-mcpu=$cpu"
3801 enable ldbrx
3802 ;;
3803 cell)
3804 cpuflags="-mcpu=cell"
3805 enable ldbrx
3806 disable vsx
3807 ;;
3808 e500mc)
3809 cpuflags="-mcpu=e500mc"
3810 disable altivec
3811 ;;
3812 e500v2)
3813 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3814 disable altivec
3815 disable dcbzl
3816 ;;
3817 e500)
3818 cpuflags="-mcpu=8540 -mhard-float"
3819 disable altivec
3820 disable dcbzl
3821 ;;
3822 esac
3823
3824 elif enabled sparc; then
3825
3826 case $cpu in
3827 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3828 cpuflags="-mcpu=$cpu"
3829 ;;
3830 ultrasparc*|niagara[234])
3831 cpuflags="-mcpu=$cpu"
3832 ;;
3833 esac
3834
3835 elif enabled x86; then
3836
3837 case $cpu in
3838 i[345]86|pentium)
3839 cpuflags="-march=$cpu"
3840 disable i686
3841 disable mmx
3842 ;;
3843 # targets that do NOT support nopl and conditional mov (cmov)
3844 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3845 cpuflags="-march=$cpu"
3846 disable i686
3847 ;;
3848 # targets that do support nopl and conditional mov (cmov)
3849 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3850 cpuflags="-march=$cpu"
3851 enable i686
3852 enable fast_cmov
3853 ;;
3854 # targets that do support conditional mov but on which it's slow
3855 pentium4|pentium4m|prescott|nocona)
3856 cpuflags="-march=$cpu"
3857 enable i686
3858 disable fast_cmov
3859 ;;
3860 esac
3861
3862 fi
3863
3864 if [ "$cpu" != generic ]; then
3865 add_cflags $cpuflags
3866 add_asflags $cpuflags
3867 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3868 fi
3869
3870 # compiler sanity check
3871 check_exec <<EOF
3872 int main(void){ return 0; }
3873 EOF
3874 if test "$?" != 0; then
3875 echo "$cc is unable to create an executable file."
3876 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3877 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3878 echo "Only do this if you know what cross compiling means."
3879 fi
3880 die "C compiler test failed."
3881 fi
3882
3883 add_cppflags -D_ISOC99_SOURCE
3884
3885 # some compilers silently accept -std=c11, so we also need to check that the
3886 # version macro is defined properly
3887 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3888 add_cflags -std=c11 ||
3889 check_cflags -std=c99
3890
3891 check_cppflags -D_FILE_OFFSET_BITS=64
3892 check_cppflags -D_LARGEFILE_SOURCE
3893
3894 add_host_cppflags -D_ISOC99_SOURCE
3895 check_host_cflags -std=c99
3896 check_host_cflags -Wall
3897 check_host_cflags $host_cflags_speed
3898
3899 check_64bit(){
3900 arch32=$1
3901 arch64=$2
3902 expr=$3
3903 check_code cc "" "int test[2*($expr) - 1]" &&
3904 subarch=$arch64 || subarch=$arch32
3905 }
3906
3907 case "$arch" in
3908 aarch64|alpha|ia64)
3909 spic=$shared
3910 ;;
3911 mips)
3912 check_64bit mips mips64 '_MIPS_SIM > 1'
3913 spic=$shared
3914 ;;
3915 parisc)
3916 check_64bit parisc parisc64 'sizeof(void *) > 4'
3917 spic=$shared
3918 ;;
3919 ppc)
3920 check_64bit ppc ppc64 'sizeof(void *) > 4'
3921 spic=$shared
3922 ;;
3923 s390)
3924 check_64bit s390 s390x 'sizeof(void *) > 4'
3925 spic=$shared
3926 ;;
3927 sparc)
3928 check_64bit sparc sparc64 'sizeof(void *) > 4'
3929 spic=$shared
3930 ;;
3931 x86)
3932 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3933 if test "$subarch" = "x86_64"; then
3934 spic=$shared
3935 fi
3936 ;;
3937 esac
3938
3939 enable $subarch
3940 enabled spic && enable_weak pic
3941
3942 enabled x86_64 && objformat=elf64 || objformat="elf32"
3943
3944 # OS specific
3945 case $target_os in
3946 aix)
3947 SHFLAGS=-shared
3948 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3949 enabled shared && add_ldflags -Wl,-brtl
3950 ;;
3951 android)
3952 disable symver
3953 enable section_data_rel_ro
3954 SLIB_INSTALL_NAME='$(SLIBNAME)'
3955 SLIB_INSTALL_LINKS=
3956 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3957 ;;
3958 haiku)
3959 prefix_default="/boot/common"
3960 network_extralibs="-lnetwork"
3961 host_extralibs=
3962 ;;
3963 sunos)
3964 SHFLAGS='-shared -Wl,-h,$$(@F)'
3965 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3966 network_extralibs="-lsocket -lnsl"
3967 # When using suncc to build, the Solaris linker will mark
3968 # an executable with each instruction set encountered by
3969 # the Solaris assembler. As our libraries contain their own
3970 # guards for processor-specific code, instead suppress
3971 # generation of the HWCAPS ELF section on Solaris x86 only.
3972 enabled_all suncc x86 &&
3973 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3974 add_ldflags -Wl,-M,mapfile
3975 nm_default='nm -P -g'
3976 version_script='-M'
3977 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3978 ;;
3979 netbsd)
3980 disable symver
3981 oss_indev_extralibs="-lossaudio"
3982 oss_outdev_extralibs="-lossaudio"
3983 ;;
3984 openbsd|bitrig)
3985 disable symver
3986 SHFLAGS='-shared'
3987 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3988 SLIB_INSTALL_LINKS=
3989 oss_indev_extralibs="-lossaudio"
3990 oss_outdev_extralibs="-lossaudio"
3991 ;;
3992 dragonfly)
3993 disable symver
3994 ;;
3995 freebsd)
3996 ;;
3997 bsd/os)
3998 add_extralibs -lpoll -lgnugetopt
3999 ;;
4000 darwin)
4001 enabled ppc && add_asflags -force_cpusubtype_ALL
4002 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4003 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4004 add_ldflags -Wl,-dynamic,-search_paths_first
4005 check_cflags -Werror=partial-availability
4006 SLIBSUF=".dylib"
4007 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
4008 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
4009 enabled x86_64 && objformat="macho64" || objformat="macho32"
4010 enabled_any pic shared ||
4011 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4012 check_header dispatch/dispatch.h &&
4013 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4014 if test -n "$sysroot"; then
4015 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4016 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
4017 fi
4018 ;;
4019 msys*)
4020 die "Native MSYS builds are discouraged, please use the MINGW environment."
4021 ;;
4022 mingw32*|mingw64*)
4023 if test $target_os = "mingw32ce"; then
4024 disable network
4025 else
4026 target_os=mingw32
4027 fi
4028 LIBTARGET=i386
4029 if enabled x86_64; then
4030 LIBTARGET="i386:x86-64"
4031 elif enabled arm; then
4032 LIBTARGET=arm-wince
4033 fi
4034 check_ldflags -Wl,--nxcompat
4035 check_ldflags -Wl,--dynamicbase
4036 shlibdir_default="$bindir_default"
4037 SLIBPREF=""
4038 SLIBSUF=".dll"
4039 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4040 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4041 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4042 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4043 SLIB_INSTALL_LINKS=
4044 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4045 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4046 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4047 enabled x86_64 && objformat="win64" || objformat="win32"
4048 dlltool="${cross_prefix}dlltool"
4049 ranlib=:
4050 enable dos_paths
4051 ;;
4052 win32|win64)
4053 disable symver
4054 if enabled shared; then
4055 # Link to the import library instead of the normal static library
4056 # for shared libs.
4057 LD_LIB='%.lib'
4058 # Cannot build both shared and static libs with MSVC or icl.
4059 disable static
4060 fi
4061 shlibdir_default="$bindir_default"
4062 SLIBPREF=""
4063 SLIBSUF=".dll"
4064 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4065 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4066 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4067 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4068 SLIB_INSTALL_LINKS=
4069 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4070 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4071 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4072 enabled x86_64 && objformat="win64" || objformat="win32"
4073 ranlib=:
4074 enable dos_paths
4075 ;;
4076 cygwin*)
4077 target_os=cygwin
4078 shlibdir_default="$bindir_default"
4079 SLIBPREF="cyg"
4080 SLIBSUF=".dll"
4081 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4082 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4083 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4084 SLIB_INSTALL_LINKS=
4085 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4086 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4087 enabled x86_64 && objformat="win64" || objformat="win32"
4088 enable dos_paths
4089 ;;
4090 *-dos|freedos|opendos)
4091 network_extralibs="-lsocket"
4092 objformat="coff"
4093 enable dos_paths
4094 add_cppflags -U__STRICT_ANSI__
4095 ;;
4096 linux)
4097 enable dv1394
4098 enable section_data_rel_ro
4099 ;;
4100 irix*)
4101 target_os=irix
4102 ranlib="echo ignoring ranlib"
4103 ;;
4104 os/2*)
4105 ln_s="cp -f"
4106 objformat="aout"
4107 add_cppflags -D_GNU_SOURCE
4108 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4109 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4110 LIBSUF="_s.a"
4111 SLIBPREF=""
4112 SLIBSUF=".dll"
4113 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4114 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4115 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4116 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4117 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4118 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4119 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4120 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4121 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4122 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4123 enable dos_paths
4124 ;;
4125 gnu/kfreebsd)
4126 add_cppflags -D_BSD_SOURCE
4127 ;;
4128 gnu)
4129 ;;
4130 qnx)
4131 add_cppflags -D_QNX_SOURCE
4132 network_extralibs="-lsocket"
4133 ;;
4134 symbian)
4135 SLIBSUF=".dll"
4136 enable dos_paths
4137 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4138 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4139 add_ldflags -Wl,--target1-abs,--no-undefined \
4140 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4141 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4142 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4143 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4144 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4145 ;;
4146 osf1)
4147 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4148 ;;
4149 minix)
4150 ;;
4151 none)
4152 ;;
4153 *)
4154 die "Unknown OS '$target_os'."
4155 ;;
4156 esac
4157
4158 # determine libc flavour
4159
4160 probe_libc(){
4161 pfx=$1
4162 pfx_no_=${pfx%_}
4163 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4164 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4165 eval ${pfx}libc_type=uclibc
4166 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4167 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4168 eval ${pfx}libc_type=glibc
4169 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4170 # MinGW headers can be installed on Cygwin, so check for newlib first.
4171 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4172 eval ${pfx}libc_type=newlib
4173 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4174 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4175 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4176 eval ${pfx}libc_type=mingw64
4177 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4178 eval test \$${pfx_no_}cc_type = "gcc" &&
4179 add_${pfx}cppflags -D__printf__=__gnu_printf__
4180 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4181 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4182 eval ${pfx}libc_type=mingw32
4183 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4184 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4185 die "ERROR: MinGW32 runtime version must be >= 3.15."
4186 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4187 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4188 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4189 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4190 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4191 eval test \$${pfx_no_}cc_type = "gcc" &&
4192 add_${pfx}cppflags -D__printf__=__gnu_printf__
4193 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4194 eval ${pfx}libc_type=msvcrt
4195 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4196 if [ "$pfx" = host_ ]; then
4197 add_host_cppflags -Dsnprintf=_snprintf
4198 else
4199 add_compat strtod.o strtod=avpriv_strtod
4200 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4201 _snprintf=avpriv_snprintf \
4202 vsnprintf=avpriv_vsnprintf
4203 fi
4204 fi
4205 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4206 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4207 # 0x601 by default unless something else is set by the user.
4208 # This can easily lead to us detecting functions only present
4209 # in such new versions and producing binaries requiring windows 7.0.
4210 # Therefore explicitly set the default to XP unless the user has
4211 # set something else on the command line.
4212 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4213 # family. For these cases, configure is free to use any functions
4214 # found in the SDK headers by default. (Alternatively, we could force
4215 # _WIN32_WINNT to 0x0602 in that case.)
4216 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4217 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4218 #ifdef WINAPI_FAMILY
4219 #include <winapifamily.h>
4220 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4221 #error not desktop
4222 #endif
4223 #endif
4224 EOF
4225 if [ "$pfx" = "" ]; then
4226 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4227 fi
4228 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4229 eval ${pfx}libc_type=klibc
4230 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4231 eval ${pfx}libc_type=bionic
4232 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4233 eval ${pfx}libc_type=solaris
4234 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4235 else
4236 eval ${pfx}libc_type=default
4237 add_${pfx}cppflags -D_DEFAULT_SOURCE
4238 fi
4239 }
4240
4241 probe_libc
4242 test -n "$libc_type" && enable libc_$libc_type
4243 probe_libc host_
4244 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4245
4246 # hacks for compiler/libc/os combinations
4247
4248 case $libc_type in
4249 bionic)
4250 add_compat strtod.o strtod=avpriv_strtod
4251 ;;
4252 glibc)
4253 if enabled tms470; then
4254 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4255 add_cppflags -D__USER_LABEL_PREFIX__=
4256 add_cppflags -D__builtin_memset=memset
4257 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4258 add_cflags -pds=48 # incompatible redefinition of macro
4259 elif enabled ccc; then
4260 add_ldflags -Wl,-z,now # calls to libots crash without this
4261 fi
4262 ;;
4263 esac
4264
4265 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4266 add_cppflags '-I\$(SRC_PATH)/compat/float'
4267
4268 esc(){
4269 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4270 }
4271
4272 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4273
4274 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4275
4276 set_default $PATHS_LIST
4277 set_default nm
4278
4279 # we need to build at least one lib type
4280 if ! enabled_any static shared; then
4281 cat <<EOF
4282 At least one library type must be built.
4283 Specify --enable-static to build the static libraries or --enable-shared to
4284 build the shared libraries as well. To only build the shared libraries specify
4285 --disable-static in addition to --enable-shared.
4286 EOF
4287 exit 1
4288 fi
4289
4290 disabled optimizations || check_cflags -fomit-frame-pointer
4291
4292 enable_weak_pic() {
4293 disabled pic && return
4294 enable pic
4295 add_cppflags -DPIC
4296 case "$target_os" in
4297 mingw*|cygwin*)
4298 ;;
4299 *)
4300 add_cflags -fPIC
4301 ;;
4302 esac
4303 add_asflags -fPIC
4304 }
4305
4306 enabled pic && enable_weak_pic
4307
4308 check_cc <<EOF || die "Symbol mangling check failed."
4309 int ff_extern;
4310 EOF
4311 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4312 extern_prefix=${sym%%ff_extern*}
4313
4314 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4315
4316 _restrict=
4317 for restrict_keyword in restrict __restrict__ __restrict; do
4318 check_cc <<EOF && _restrict=$restrict_keyword && break
4319 void foo(char * $restrict_keyword p);
4320 EOF
4321 done
4322
4323 check_cc <<EOF && enable pragma_deprecated
4324 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4325 EOF
4326
4327 check_cc <<EOF && enable attribute_packed
4328 struct { int x; } __attribute__((packed)) x;
4329 EOF
4330
4331 check_cc <<EOF && enable attribute_may_alias
4332 union { int x; } __attribute__((may_alias)) x;
4333 EOF
4334
4335 check_cc <<EOF || die "endian test failed"
4336 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4337 EOF
4338 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4339
4340 check_gas() {
4341 log "check_gas using '$as' as AS"
4342 # :vararg is used on aarch64, arm and ppc altivec
4343 check_as <<EOF || return 1
4344 .macro m n, y:vararg=0
4345 \n: .int \y
4346 .endm
4347 m x
4348 EOF
4349 # .altmacro is only used in arm asm
4350 ! enabled arm || check_as <<EOF || return 1
4351 .altmacro
4352 EOF
4353 enable gnu_as
4354 return 0
4355 }
4356
4357 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4358 nogas=:
4359 enabled_any arm aarch64 && nogas=die
4360 enabled_all ppc altivec && nogas=warn
4361 as_noop=-v
4362
4363 case $as_type in
4364 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4365 gcc) gaspp_as_type=gas ;;
4366 *) gaspp_as_type=$as_type ;;
4367 esac
4368