aa87ac7279c4d8b63ac60be89af1d9c9caf44ca8
[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 ${name}_extralibs="\$@"
1026 }
1027
1028 test_pkg_config(){
1029 log test_pkg_config "$@"
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 $name &&
1042 set_sanitized "${name}_cflags" $pkg_cflags &&
1043 set_sanitized "${name}_extralibs" $pkg_libs
1044 }
1045
1046 check_pkg_config(){
1047 log check_pkg_config "$@"
1048 name="$1"
1049 test_pkg_config "$@" &&
1050 eval add_cflags \$${name}_cflags
1051 }
1052
1053 check_exec(){
1054 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1055 }
1056
1057 check_exec_crash(){
1058 log check_exec_crash "$@"
1059 code=$(cat)
1060
1061 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1062 # are safe but may not be available everywhere. Thus we use
1063 # raise(SIGTERM) instead. The check is run in a subshell so we
1064 # can redirect the "Terminated" message from the shell. SIGBUS
1065 # is not defined by standard C so it is used conditionally.
1066
1067 (check_exec "$@") >> $logfile 2>&1 <<EOF
1068 #include <signal.h>
1069 static void sighandler(int sig){
1070 raise(SIGTERM);
1071 }
1072 int foo(void){
1073 $code
1074 }
1075 int (*func_ptr)(void) = foo;
1076 int main(void){
1077 signal(SIGILL, sighandler);
1078 signal(SIGFPE, sighandler);
1079 signal(SIGSEGV, sighandler);
1080 #ifdef SIGBUS
1081 signal(SIGBUS, sighandler);
1082 #endif
1083 return func_ptr();
1084 }
1085 EOF
1086 }
1087
1088 check_type(){
1089 log check_type "$@"
1090 headers=$1
1091 type=$2
1092 shift 2
1093 disable_sanitized "$type"
1094 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1095 }
1096
1097 check_struct(){
1098 log check_struct "$@"
1099 headers=$1
1100 struct=$2
1101 member=$3
1102 shift 3
1103 disable_sanitized "${struct}_${member}"
1104 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1105 enable_sanitized "${struct}_${member}"
1106 }
1107
1108 check_builtin(){
1109 log check_builtin "$@"
1110 name=$1
1111 headers=$2
1112 builtin=$3
1113 shift 3
1114 disable "$name"
1115 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1116 }
1117
1118 check_compile_assert(){
1119 log check_compile_assert "$@"
1120 name=$1
1121 headers=$2
1122 condition=$3
1123 shift 3
1124 disable "$name"
1125 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1126 }
1127
1128 require(){
1129 log require "$@"
1130 name_version="$1"
1131 name="${1%% *}"
1132 headers="$2"
1133 func="$3"
1134 shift 3
1135 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1136 }
1137
1138 require_header(){
1139 log require "$@"
1140 header="$1"
1141 shift
1142 check_header "$header" "$@" || die "ERROR: $header not found"
1143 }
1144
1145 require_cpp_condition(){
1146 log require "$@"
1147 header="$1"
1148 condition="$2"
1149 shift 2
1150 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1151 }
1152
1153 require_pkg_config(){
1154 log require_pkg_config "$@"
1155 pkg_version="$2"
1156 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1157 }
1158
1159 hostcc_e(){
1160 eval printf '%s\\n' $HOSTCC_E
1161 }
1162
1163 hostcc_o(){
1164 eval printf '%s\\n' $HOSTCC_O
1165 }
1166
1167 check_host_cc(){
1168 log check_host_cc "$@"
1169 cat > $TMPC
1170 log_file $TMPC
1171 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1172 }
1173
1174 check_host_cpp(){
1175 log check_host_cpp "$@"
1176 cat > $TMPC
1177 log_file $TMPC
1178 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1179 }
1180
1181 check_host_cppflags(){
1182 log check_host_cppflags "$@"
1183 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1184 #include <stdlib.h>;
1185 EOF
1186 }
1187
1188 check_host_cflags(){
1189 log check_host_cflags "$@"
1190 set -- $($host_cflags_filter "$@")
1191 check_host_cc "$@" <<EOF && append host_cflags "$@"
1192 int x;
1193 EOF
1194 }
1195
1196 check_host_cpp_condition(){
1197 log check_host_cpp_condition "$@"
1198 header=$1
1199 condition=$2
1200 shift 2
1201 check_host_cpp "$@" <<EOF
1202 #include <$header>
1203 #if !($condition)
1204 #error "unsatisfied condition: $condition"
1205 #endif
1206 EOF
1207 }
1208
1209 apply(){
1210 file=$1
1211 shift
1212 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1213 }
1214
1215 cp_if_changed(){
1216 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1217 mkdir -p "$(dirname $2)"
1218 cp -f "$1" "$2"
1219 }
1220
1221 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1222 # system-dependent things.
1223
1224 AVCODEC_COMPONENTS="
1225 bsfs
1226 decoders
1227 encoders
1228 hwaccels
1229 parsers
1230 "
1231
1232 AVDEVICE_COMPONENTS="
1233 indevs
1234 outdevs
1235 "
1236 AVFILTER_COMPONENTS="
1237 filters
1238 "
1239 AVFORMAT_COMPONENTS="
1240 demuxers
1241 muxers
1242 protocols
1243 "
1244
1245 AVRESAMPLE_COMPONENTS=""
1246 AVUTIL_COMPONENTS=""
1247
1248 COMPONENT_LIST="
1249 $AVCODEC_COMPONENTS
1250 $AVDEVICE_COMPONENTS
1251 $AVFILTER_COMPONENTS
1252 $AVFORMAT_COMPONENTS
1253 $AVRESAMPLE_COMPONENTS
1254 $AVUTIL_COMPONENTS
1255 "
1256
1257 EXAMPLE_LIST="
1258 decode_audio_example
1259 decode_video_example
1260 encode_audio_example
1261 encode_video_example
1262 filter_audio_example
1263 metadata_example
1264 output_example
1265 qsvdec_example
1266 transcode_aac_example
1267 "
1268
1269 # catchall list of things that require external libs to link
1270 EXTRALIBS_LIST="
1271 cpu_init
1272 cws2fws
1273 "
1274
1275 HWACCEL_LIBRARY_NONFREE_LIST="
1276 cuda
1277 cuvid
1278 libnpp
1279 "
1280 HWACCEL_LIBRARY_LIST="
1281 $HWACCEL_LIBRARY_NONFREE_LIST
1282 d3d11va
1283 dxva2
1284 libmfx
1285 mmal
1286 nvenc
1287 omx
1288 vaapi
1289 vda
1290 vdpau
1291 "
1292
1293 EXTERNAL_LIBRARY_GPL_LIST="
1294 libcdio
1295 libx264
1296 libx265
1297 libxavs
1298 libxvid
1299 "
1300
1301 EXTERNAL_LIBRARY_NONFREE_LIST="
1302 libfaac
1303 libfdk_aac
1304 openssl
1305 "
1306
1307 EXTERNAL_LIBRARY_VERSION3_LIST="
1308 libopencore_amrnb
1309 libopencore_amrwb
1310 libvo_aacenc
1311 libvo_amrwbenc
1312 "
1313
1314 EXTERNAL_LIBRARY_LIST="
1315 $EXTERNAL_LIBRARY_GPL_LIST
1316 $EXTERNAL_LIBRARY_NONFREE_LIST
1317 $EXTERNAL_LIBRARY_VERSION3_LIST
1318 avisynth
1319 avxsynth
1320 frei0r
1321 gnutls
1322 libbs2b
1323 libdc1394
1324 libdcadec
1325 libfontconfig
1326 libfreetype
1327 libgsm
1328 libhdcd
1329 libilbc
1330 libjack
1331 libkvazaar
1332 libmp3lame
1333 libopencv
1334 libopenh264
1335 libopenjpeg
1336 libopus
1337 libpulse
1338 librtmp
1339 libschroedinger
1340 libsnappy
1341 libspeex
1342 libtheora
1343 libtwolame
1344 libvorbis
1345 libvpx
1346 libwavpack
1347 libwebp
1348 libxcb
1349 libxcb_shm
1350 libxcb_xfixes
1351 "
1352
1353 SYSTEM_LIBRARY_LIST="
1354 bzlib
1355 zlib
1356 "
1357
1358 FEATURE_LIST="
1359 gray
1360 hardcoded_tables
1361 omx_rpi
1362 runtime_cpudetect
1363 safe_bitstream_reader
1364 shared
1365 small
1366 sram
1367 static
1368 swscale_alpha
1369 "
1370
1371 LIBRARY_LIST="
1372 avcodec
1373 avdevice
1374 avfilter
1375 avformat
1376 avresample
1377 avutil
1378 swscale
1379 "
1380
1381 LICENSE_LIST="
1382 gpl
1383 nonfree
1384 version3
1385 "
1386
1387 PROGRAM_LIST="
1388 avconv
1389 avplay
1390 avprobe
1391 "
1392
1393 SUBSYSTEM_LIST="
1394 dct
1395 doc
1396 error_resilience
1397 faan
1398 fft
1399 lsp
1400 lzo
1401 mdct
1402 network
1403 rdft
1404 "
1405
1406 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1407 CONFIG_LIST="
1408 $EXAMPLE_LIST
1409 $EXTERNAL_LIBRARY_LIST
1410 $HWACCEL_LIBRARY_LIST
1411 $FEATURE_LIST
1412 $LICENSE_LIST
1413 $LIBRARY_LIST
1414 $PROGRAM_LIST
1415 $SUBSYSTEM_LIST
1416 $SYSTEM_LIBRARY_LIST
1417 neon_clobber_test
1418 pic
1419 pod2man
1420 texi2html
1421 thumb
1422 valgrind_backtrace
1423 xmm_clobber_test
1424 $COMPONENT_LIST
1425 "
1426
1427 THREADS_LIST="
1428 pthreads
1429 w32threads
1430 "
1431
1432 ATOMICS_LIST="
1433 atomics_gcc
1434 atomics_suncc
1435 atomics_win32
1436 "
1437
1438 ARCH_LIST="
1439 aarch64
1440 alpha
1441 arm
1442 avr32
1443 avr32_ap
1444 avr32_uc
1445 bfin
1446 ia64
1447 m68k
1448 mips
1449 mips64
1450 parisc
1451 ppc
1452 ppc64
1453 s390
1454 sh4
1455 sparc
1456 sparc64
1457 tilegx
1458 tilepro
1459 tomi
1460 x86
1461 x86_32
1462 x86_64
1463 "
1464
1465 ARCH_EXT_LIST_ARM="
1466 armv5te
1467 armv6
1468 armv6t2
1469 armv8
1470 neon
1471 vfp
1472 vfpv3
1473 "
1474
1475 ARCH_EXT_LIST_X86_SIMD="
1476 amd3dnow
1477 amd3dnowext
1478 avx
1479 avx2
1480 fma3
1481 fma4
1482 mmx
1483 mmxext
1484 sse
1485 sse2
1486 sse3
1487 sse4
1488 sse42
1489 ssse3
1490 xop
1491 "
1492
1493 ARCH_EXT_LIST_PPC="
1494 altivec
1495 dcbzl
1496 ldbrx
1497 power8
1498 ppc4xx
1499 vsx
1500 "
1501
1502 ARCH_EXT_LIST_X86="
1503 $ARCH_EXT_LIST_X86_SIMD
1504 cpunop
1505 i686
1506 "
1507
1508 ARCH_EXT_LIST_MIPS="
1509 loongson
1510 mips32r1
1511 mips64r1
1512 mips32r2
1513 mips64r2
1514 mips32r6
1515 mips64r6
1516 "
1517
1518 ARCH_EXT_LIST="
1519 $ARCH_EXT_LIST_ARM
1520 $ARCH_EXT_LIST_MIPS
1521 $ARCH_EXT_LIST_PPC
1522 $ARCH_EXT_LIST_X86
1523 vis
1524 "
1525
1526 ARCH_FEATURES="
1527 aligned_stack
1528 fast_64bit
1529 fast_clz
1530 fast_cmov
1531 local_aligned_8
1532 local_aligned_16
1533 local_aligned_32
1534 simd_align_16
1535 simd_align_32
1536 "
1537
1538 BUILTIN_LIST="
1539 atomic_cas_ptr
1540 machine_rw_barrier
1541 MemoryBarrier
1542 mm_empty
1543 rdtsc
1544 sem_timedwait
1545 sync_val_compare_and_swap
1546 "
1547 HAVE_LIST_CMDLINE="
1548 inline_asm
1549 symver
1550 x86asm
1551 "
1552
1553 HAVE_LIST_PUB="
1554 bigendian
1555 fast_unaligned
1556 "
1557
1558 HEADERS_LIST="
1559 AVFoundation_AVFoundation_h
1560 alsa_asoundlib_h
1561 arpa_inet_h
1562 cdio_paranoia_h
1563 cdio_paranoia_paranoia_h
1564 d3d11_h
1565 dispatch_dispatch_h
1566 dev_bktr_ioctl_bt848_h
1567 dev_bktr_ioctl_meteor_h
1568 dev_ic_bt8xx_h
1569 dev_video_bktr_ioctl_bt848_h
1570 dev_video_meteor_ioctl_meteor_h
1571 direct_h
1572 dlfcn_h
1573 dxgidebug_h
1574 dxva_h
1575 gsm_h
1576 io_h
1577 mach_mach_time_h
1578 machine_ioctl_bt848_h
1579 machine_ioctl_meteor_h
1580 malloc_h
1581 poll_h
1582 sndio_h
1583 soundcard_h
1584 stdatomic_h
1585 sys_mman_h
1586 sys_param_h
1587 sys_resource_h
1588 sys_select_h
1589 sys_soundcard_h
1590 sys_time_h
1591 sys_un_h
1592 sys_videoio_h
1593 unistd_h
1594 valgrind_valgrind_h
1595 windows_h
1596 winsock2_h
1597 "
1598
1599 INTRINSICS_LIST="
1600 intrinsics_neon
1601 "
1602
1603 MATH_FUNCS="
1604 atanf
1605 atan2f
1606 cbrtf
1607 cosf
1608 exp2
1609 exp2f
1610 expf
1611 isinf
1612 isnan
1613 ldexpf
1614 llrint
1615 llrintf
1616 log2
1617 log2f
1618 log10f
1619 lrint
1620 lrintf
1621 powf
1622 rint
1623 round
1624 roundf
1625 sinf
1626 trunc
1627 truncf
1628 "
1629
1630 SYSTEM_FUNCS="
1631 aligned_malloc
1632 clock_gettime
1633 closesocket
1634 CommandLineToArgvW
1635 CoTaskMemFree
1636 CryptGenRandom
1637 fcntl
1638 flt_lim
1639 fork
1640 getaddrinfo
1641 gethrtime
1642 getopt
1643 GetProcessAffinityMask
1644 GetProcessMemoryInfo
1645 GetProcessTimes
1646 getrusage
1647 GetSystemTimeAsFileTime
1648 gettimeofday
1649 gmtime_r
1650 inet_aton
1651 isatty
1652 LoadLibrary
1653 localtime_r
1654 mach_absolute_time
1655 MapViewOfFile
1656 memalign
1657 mkstemp
1658 mmap
1659 mprotect
1660 nanosleep
1661 posix_memalign
1662 sched_getaffinity
1663 SetConsoleTextAttribute
1664 setmode
1665 setrlimit
1666 Sleep
1667 strerror_r
1668 sysconf
1669 sysctl
1670 usleep
1671 VirtualAlloc
1672 "
1673
1674 TOOLCHAIN_FEATURES="
1675 as_arch_directive
1676 as_fpu_directive
1677 as_func
1678 as_object_arch
1679 asm_mod_q
1680 attribute_may_alias
1681 attribute_packed
1682 blocks_extension
1683 ebp_available
1684 ebx_available
1685 gnu_as
1686 ibm_asm
1687 inline_asm_labels
1688 pragma_deprecated
1689 symver_asm_label
1690 symver_gnu_asm
1691 vfp_args
1692 xform_asm
1693 xmm_clobbers
1694 "
1695
1696 TYPES_LIST="
1697 CONDITION_VARIABLE_Ptr
1698 CUVIDDECODECREATEINFO_bitDepthMinus8
1699 socklen_t
1700 struct_addrinfo
1701 struct_group_source_req
1702 struct_ip_mreq_source
1703 struct_ipv6_mreq
1704 struct_pollfd
1705 struct_rusage_ru_maxrss
1706 struct_sockaddr_in6
1707 struct_sockaddr_sa_len
1708 struct_sockaddr_storage
1709 struct_v4l2_frmivalenum_discrete
1710 "
1711
1712 HAVE_LIST="
1713 $ARCH_EXT_LIST
1714 $(add_suffix _external $ARCH_EXT_LIST)
1715 $(add_suffix _inline $ARCH_EXT_LIST)
1716 $ARCH_FEATURES
1717 $BUILTIN_LIST
1718 $HAVE_LIST_CMDLINE
1719 $HAVE_LIST_PUB
1720 $HEADERS_LIST
1721 $INTRINSICS_LIST
1722 $MATH_FUNCS
1723 $SYSTEM_FUNCS
1724 $THREADS_LIST
1725 $TOOLCHAIN_FEATURES
1726 $TYPES_LIST
1727 dos_paths
1728 libc_msvcrt
1729 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1730 sdl
1731 section_data_rel_ro
1732 threads
1733 uwp
1734 vaapi_drm
1735 vaapi_x11
1736 vdpau_x11
1737 "
1738
1739 # options emitted with CONFIG_ prefix but not available on the command line
1740 CONFIG_EXTRA="
1741 aandcttables
1742 ac3dsp
1743 adts_header
1744 audio_frame_queue
1745 audiodsp
1746 blockdsp
1747 bswapdsp
1748 cabac
1749 cbs
1750 cbs_h264
1751 cbs_h265
1752 cbs_mpeg2
1753 dirac_parse
1754 dvprofile
1755 faandct
1756 faanidct
1757 fdctdsp
1758 flacdsp
1759 fmtconvert
1760 g722dsp
1761 gmp
1762 golomb
1763 gplv3
1764 h263dsp
1765 h264chroma
1766 h264dsp
1767 h264parse
1768 h264pred
1769 h264qpel
1770 hevc_ps
1771 hpeldsp
1772 huffman
1773 huffyuvdsp
1774 huffyuvencdsp
1775 idctdsp
1776 iirfilter
1777 imdct15
1778 intrax8
1779 iso_media
1780 ividsp
1781 jpegtables
1782 lgplv3
1783 libx262
1784 libxcb_shape
1785 lpc
1786 lzf
1787 me_cmp
1788 mpeg_er
1789 mpegaudio
1790 mpegaudiodsp
1791 mpegaudioheader
1792 mpegvideo
1793 mpegvideoenc
1794 mss34dsp
1795 pixblockdsp
1796 qpeldsp
1797 qsv
1798 qsvdec
1799 qsvenc
1800 qsvvpp
1801 rangecoder
1802 riffdec
1803 riffenc
1804 rtpdec
1805 rtpenc_chain
1806 rv34dsp
1807 sinewin
1808 snappy
1809 srtp
1810 startcode
1811 texturedsp
1812 texturedspenc
1813 tpeldsp
1814 vaapi_encode
1815 vc1dsp
1816 videodsp
1817 vp3dsp
1818 vp56dsp
1819 vp8dsp
1820 wma_freqs
1821 wmv2dsp
1822 "
1823
1824 CMDLINE_SELECT="
1825 $ARCH_EXT_LIST
1826 $CONFIG_LIST
1827 $HAVE_LIST_CMDLINE
1828 $THREADS_LIST
1829 asm
1830 cross_compile
1831 debug
1832 extra_warnings
1833 logging
1834 lto
1835 optimizations
1836 rpath
1837 "
1838
1839 PATHS_LIST="
1840 bindir
1841 datadir
1842 docdir
1843 incdir
1844 libdir
1845 mandir
1846 prefix
1847 shlibdir
1848 "
1849
1850 CMDLINE_SET="
1851 $PATHS_LIST
1852 ar
1853 arch
1854 as
1855 cc
1856 objcc
1857 cpu
1858 cross_prefix
1859 custom_allocator
1860 dep_cc
1861 env
1862 extra_version
1863 host_cc
1864 host_cflags
1865 host_extralibs
1866 host_ld
1867 host_ldflags
1868 host_os
1869 ignore_tests
1870 ld
1871 logfile
1872 malloc_prefix
1873 nm
1874 optflags
1875 pkg_config
1876 pkg_config_flags
1877 random_seed
1878 samples
1879 sysinclude
1880 sysroot
1881 target_exec
1882 target_os
1883 target_path
1884 target_samples
1885 toolchain
1886 x86asmexe
1887 "
1888
1889 CMDLINE_APPEND="
1890 extra_cflags
1891 extra_objcflags
1892 host_cppflags
1893 "
1894
1895 # code dependency declarations
1896
1897 # architecture extensions
1898
1899 armv5te_deps="arm"
1900 armv6_deps="arm"
1901 armv6t2_deps="arm"
1902 armv8_deps="aarch64"
1903 neon_deps_any="aarch64 arm"
1904 intrinsics_neon_deps="neon"
1905 vfp_deps_any="aarch64 arm"
1906 vfpv3_deps="vfp"
1907
1908 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1909
1910 altivec_deps="ppc"
1911 dcbzl_deps="ppc"
1912 ldbrx_deps="ppc"
1913 ppc4xx_deps="ppc"
1914 vsx_deps="altivec"
1915 power8_deps="vsx"
1916
1917 loongson_deps="mips"
1918 mips32r1_deps="mips32"
1919 mips32r2_deps="mips32"
1920 mips32r6_deps="mips32"
1921 mips64r1_deps="mips64"
1922 mips64r2_deps="mips64"
1923 mips64r6_deps="mips64"
1924
1925 vis_deps="sparc"
1926
1927 cpunop_deps="i686"
1928 x86_64_select="i686"
1929 x86_64_suggest="fast_cmov"
1930
1931 amd3dnow_deps="mmx"
1932 amd3dnowext_deps="amd3dnow"
1933 i686_deps="x86"
1934 mmx_deps="x86"
1935 mmxext_deps="mmx"
1936 sse_deps="mmxext"
1937 sse2_deps="sse"
1938 sse3_deps="sse2"
1939 ssse3_deps="sse3"
1940 sse4_deps="ssse3"
1941 sse42_deps="sse4"
1942 avx_deps="sse42"
1943 xop_deps="avx"
1944 fma3_deps="avx"
1945 fma4_deps="avx"
1946 avx2_deps="avx"
1947
1948 mmx_external_deps="x86asm"
1949 mmx_inline_deps="inline_asm x86"
1950 mmx_suggest="mmx_external mmx_inline"
1951
1952 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1953 eval dep=\$${ext}_deps
1954 eval ${ext}_external_deps='"${dep}_external"'
1955 eval ${ext}_inline_deps='"${dep}_inline"'
1956 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1957 done
1958
1959 aligned_stack_if_any="aarch64 ppc x86"
1960 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1961 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1962 fast_unaligned_if_any="aarch64 ppc x86"
1963 simd_align_16_if_any="altivec neon sse"
1964 simd_align_32_if_any="avx"
1965
1966 # system capabilities
1967 symver_if_any="symver_asm_label symver_gnu_asm"
1968 valgrind_backtrace_conflict="optimizations"
1969 valgrind_backtrace_deps="valgrind_valgrind_h"
1970
1971 # threading support
1972 atomics_gcc_if="sync_val_compare_and_swap"
1973 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1974 atomics_win32_if="MemoryBarrier"
1975 atomics_native_if_any="$ATOMICS_LIST"
1976 w32threads_deps="atomics_native"
1977 threads_if_any="$THREADS_LIST"
1978
1979 # subsystems
1980 cbs_h264_select="cbs golomb"
1981 cbs_h265_select="cbs golomb"
1982 cbs_mpeg2_select="cbs"
1983 dct_select="rdft"
1984 dirac_parse_select="golomb"
1985 error_resilience_select="me_cmp"
1986 faandct_deps="faan"
1987 faandct_select="fdctdsp"
1988 faanidct_deps="faan"
1989 faanidct_select="idctdsp"
1990 h264dsp_select="startcode"
1991 hevc_ps_select="golomb"
1992 intrax8_select="blockdsp idctdsp"
1993 mdct_select="fft"
1994 rdft_select="fft"
1995 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1996 mpeg_er_select="error_resilience"
1997 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1998 mpegaudiodsp_select="dct"
1999 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
2000 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2001 vc1dsp_select="h264chroma qpeldsp startcode"
2002
2003 # decoders / encoders
2004 aac_decoder_select="adts_header imdct15 mdct sinewin"
2005 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2006 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2007 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2008 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2009 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2010 adpcm_g722_decoder_select="g722dsp"
2011 adpcm_g722_encoder_select="g722dsp"
2012 aic_decoder_select="golomb idctdsp"
2013 alac_encoder_select="lpc"
2014 als_decoder_select="bswapdsp"
2015 amrnb_decoder_select="lsp"
2016 amrwb_decoder_select="lsp"
2017 amv_decoder_select="sp5x_decoder"
2018 ape_decoder_select="bswapdsp"
2019 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2020 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2021 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2022 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2023 atrac1_decoder_select="mdct sinewin"
2024 atrac3_decoder_select="mdct"
2025 atrac3p_decoder_select="mdct sinewin"
2026 bink_decoder_select="blockdsp hpeldsp"
2027 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2028 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2029 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2030 clearvideo_decoder_select="idctdsp"
2031 cllc_decoder_select="bswapdsp"
2032 comfortnoise_encoder_select="lpc"
2033 cook_decoder_select="audiodsp mdct sinewin"
2034 cscd_decoder_select="lzo"
2035 cscd_decoder_suggest="zlib"
2036 dca_decoder_select="fmtconvert mdct"
2037 dds_decoder_select="texturedsp"
2038 dnxhd_decoder_select="blockdsp idctdsp"
2039 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2040 dvvideo_decoder_select="dvprofile idctdsp"
2041 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2042 dxa_decoder_deps="zlib"
2043 dxv_decoder_select="lzf texturedsp"
2044 eac3_decoder_select="ac3_decoder"
2045 eac3_encoder_select="ac3_encoder"
2046 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2047 eatgq_decoder_select="aandcttables idctdsp"
2048 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2049 exr_decoder_deps="zlib"
2050 ffv1_decoder_select="rangecoder"
2051 ffv1_encoder_select="rangecoder"
2052 ffvhuff_decoder_select="huffyuv_decoder"
2053 ffvhuff_encoder_select="huffyuv_encoder"
2054 fic_decoder_select="golomb"
2055 flac_decoder_select="flacdsp"
2056 flac_encoder_select="bswapdsp flacdsp lpc"
2057 flashsv_decoder_deps="zlib"
2058 flashsv_encoder_deps="zlib"
2059 flashsv2_decoder_deps="zlib"
2060 flv_decoder_select="h263_decoder"
2061 flv_encoder_select="h263_encoder"
2062 fourxm_decoder_select="blockdsp bswapdsp"
2063 fraps_decoder_select="bswapdsp huffman"
2064 g2m_decoder_deps="zlib"
2065 g2m_decoder_select="blockdsp idctdsp jpegtables"
2066 h261_decoder_select="mpeg_er mpegvideo"
2067 h261_encoder_select="aandcttables mpegvideoenc"
2068 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2069 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2070 h263i_decoder_select="h263_decoder"
2071 h263p_encoder_select="h263_encoder"
2072 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2073 h264_decoder_suggest="error_resilience"
2074 hap_decoder_select="snappy texturedsp"
2075 hap_encoder_deps="libsnappy"
2076 hap_encoder_select="texturedspenc"
2077 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2078 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2079 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2080 iac_decoder_select="imc_decoder"
2081 imc_decoder_select="bswapdsp fft mdct sinewin"
2082 indeo3_decoder_select="hpeldsp"
2083 indeo4_decoder_select="ividsp"
2084 indeo5_decoder_select="ividsp"
2085 interplay_video_decoder_select="hpeldsp"
2086 jpegls_decoder_select="mjpeg_decoder"
2087 jv_decoder_select="blockdsp"
2088 lagarith_decoder_select="huffyuvdsp"
2089 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2090 magicyuv_decoder_select="huffyuvdsp"
2091 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2092 metasound_decoder_select="lsp mdct sinewin"
2093 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2094 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2095 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2096 mjpegb_decoder_select="mjpeg_decoder"
2097 mlp_decoder_select="mlp_parser"
2098 motionpixels_decoder_select="bswapdsp"
2099 mp1_decoder_select="mpegaudio"
2100 mp1float_decoder_select="mpegaudio"
2101 mp2_decoder_select="mpegaudio"
2102 mp2float_decoder_select="mpegaudio"
2103 mp3_decoder_select="mpegaudio"
2104 mp3adu_decoder_select="mpegaudio"
2105 mp3adufloat_decoder_select="mpegaudio"
2106 mp3float_decoder_select="mpegaudio"
2107 mp3on4_decoder_select="mpegaudio"
2108 mp3on4float_decoder_select="mpegaudio"
2109 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2110 mpc8_decoder_select="mpegaudiodsp"
2111 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2112 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2113 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2114 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2115 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2116 mpeg4_encoder_select="h263_encoder"
2117 msa1_decoder_select="mss34dsp"
2118 msmpeg4v1_decoder_select="h263_decoder"
2119 msmpeg4v2_decoder_select="h263_decoder"
2120 msmpeg4v2_encoder_select="h263_encoder"
2121 msmpeg4v3_decoder_select="h263_decoder"
2122 msmpeg4v3_encoder_select="h263_encoder"
2123 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2124 mts2_decoder_select="mss34dsp"
2125 mxpeg_decoder_select="mjpeg_decoder"
2126 nellymoser_decoder_select="mdct sinewin"
2127 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2128 nuv_decoder_select="idctdsp lzo"
2129 on2avc_decoder_select="mdct"
2130 opus_decoder_deps="avresample"
2131 opus_decoder_select="imdct15"
2132 png_decoder_deps="zlib"
2133 png_encoder_deps="zlib"
2134 png_encoder_select="huffyuvencdsp"
2135 prores_decoder_select="idctdsp"
2136 prores_encoder_select="fdctdsp"
2137 qcelp_decoder_select="lsp"
2138 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2139 ra_144_encoder_select="audio_frame_queue lpc"
2140 ralf_decoder_select="golomb"
2141 rscc_decoder_deps="zlib"
2142 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2143 rv10_encoder_select="h263_encoder"
2144 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2145 rv20_encoder_select="h263_encoder"
2146 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2147 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2148 screenpresso_decoder_deps="zlib"
2149 sipr_decoder_select="lsp"
2150 sp5x_decoder_select="mjpeg_decoder"
2151 svq1_decoder_select="hpeldsp"
2152 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2153 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2154 svq3_decoder_suggest="zlib"
2155 tak_decoder_select="audiodsp"
2156 tdsc_decoder_deps="zlib"
2157 tdsc_decoder_select="mjpeg_decoder"
2158 theora_decoder_select="vp3_decoder"
2159 thp_decoder_select="mjpeg_decoder"
2160 tiff_decoder_suggest="zlib"
2161 tiff_encoder_suggest="zlib"
2162 truehd_decoder_select="mlp_decoder"
2163 truemotion2_decoder_select="bswapdsp"
2164 truespeech_decoder_select="bswapdsp"
2165 tscc_decoder_deps="zlib"
2166 txd_decoder_select="texturedsp"
2167 twinvq_decoder_select="mdct lsp sinewin"
2168 utvideo_decoder_select="bswapdsp huffyuvdsp"
2169 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2170 vble_decoder_select="huffyuvdsp"
2171 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2172 vc1image_decoder_select="vc1_decoder"
2173 vorbis_decoder_select="mdct"
2174 vorbis_encoder_select="mdct"
2175 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2176 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2177 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2178 vp6a_decoder_select="vp6_decoder"
2179 vp6f_decoder_select="vp6_decoder"
2180 vp7_decoder_select="h264pred videodsp vp8dsp"
2181 vp8_decoder_select="h264pred videodsp vp8dsp"
2182 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2183 webp_decoder_select="vp8_decoder"
2184 wmapro_decoder_select="mdct sinewin wma_freqs"
2185 wmav1_decoder_select="mdct sinewin wma_freqs"
2186 wmav1_encoder_select="mdct sinewin wma_freqs"
2187 wmav2_decoder_select="mdct sinewin wma_freqs"
2188 wmav2_encoder_select="mdct sinewin wma_freqs"
2189 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2190 wmv1_decoder_select="h263_decoder"
2191 wmv1_encoder_select="h263_encoder"
2192 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2193 wmv2_encoder_select="h263_encoder wmv2dsp"
2194 wmv3_decoder_select="vc1_decoder"
2195 wmv3image_decoder_select="wmv3_decoder"
2196 zerocodec_decoder_deps="zlib"
2197 zlib_decoder_deps="zlib"
2198 zlib_encoder_deps="zlib"
2199 zmbv_decoder_deps="zlib"
2200 zmbv_encoder_deps="zlib"
2201
2202 # hardware accelerators
2203 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2204 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2205 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2206 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2207
2208 h263_vaapi_hwaccel_deps="vaapi"
2209 h263_vaapi_hwaccel_select="h263_decoder"
2210 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2211 h264_cuvid_hwaccel_select="h264_decoder"
2212 h264_d3d11va_hwaccel_deps="d3d11va"
2213 h264_d3d11va_hwaccel_select="h264_decoder"
2214 h264_d3d11va2_hwaccel_deps="d3d11va"
2215 h264_d3d11va2_hwaccel_select="h264_decoder"
2216 h264_dxva2_hwaccel_deps="dxva2"
2217 h264_dxva2_hwaccel_select="h264_decoder"
2218 h264_mmal_hwaccel_deps="mmal"
2219 h264_qsv_hwaccel_deps="libmfx"
2220 h264_vaapi_hwaccel_deps="vaapi"
2221 h264_vaapi_hwaccel_select="h264_decoder"
2222 h264_vda_hwaccel_deps="vda"
2223 h264_vda_hwaccel_select="h264_decoder"
2224 h264_vda_old_hwaccel_deps="vda"
2225 h264_vda_old_hwaccel_select="h264_decoder"
2226 h264_vdpau_hwaccel_deps="vdpau"
2227 h264_vdpau_hwaccel_select="h264_decoder"
2228 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2229 hevc_cuvid_hwaccel_select="hevc_decoder"
2230 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2231 hevc_d3d11va_hwaccel_select="hevc_decoder"
2232 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2233 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2234 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2235 hevc_dxva2_hwaccel_select="hevc_decoder"
2236 hevc_qsv_hwaccel_deps="libmfx"
2237 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2238 hevc_vaapi_hwaccel_select="hevc_decoder"
2239 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2240 hevc_vdpau_hwaccel_select="hevc_decoder"
2241 mpeg1_vdpau_hwaccel_deps="vdpau"
2242 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2243 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2244 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2245 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2246 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2247 mpeg2_dxva2_hwaccel_deps="dxva2"
2248 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2249 mpeg2_mmal_hwaccel_deps="mmal"
2250 mpeg2_qsv_hwaccel_deps="libmfx"
2251 mpeg2_vaapi_hwaccel_deps="vaapi"
2252 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2253 mpeg2_vdpau_hwaccel_deps="vdpau"
2254 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2255 mpeg4_vaapi_hwaccel_deps="vaapi"
2256 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2257 mpeg4_vdpau_hwaccel_deps="vdpau"
2258 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2259 vc1_d3d11va_hwaccel_deps="d3d11va"
2260 vc1_d3d11va_hwaccel_select="vc1_decoder"
2261 vc1_d3d11va2_hwaccel_deps="d3d11va"
2262 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2263 vc1_dxva2_hwaccel_deps="dxva2"
2264 vc1_dxva2_hwaccel_select="vc1_decoder"
2265 vc1_mmal_hwaccel_deps="mmal"
2266 vc1_qsv_hwaccel_deps="libmfx"
2267 vc1_vaapi_hwaccel_deps="vaapi"
2268 vc1_vaapi_hwaccel_select="vc1_decoder"
2269 vc1_vdpau_hwaccel_deps="vdpau"
2270 vc1_vdpau_hwaccel_select="vc1_decoder"
2271 vp8_qsv_hwaccel_deps="libmfx"
2272 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2273 vp8_vaapi_hwaccel_select="vp8_decoder"
2274 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2275 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2276 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2277 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2278 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2279
2280 # hardware-accelerated codecs
2281 nvenc_deps_any="libdl LoadLibrary"
2282 omx_deps="libdl pthreads"
2283 omx_rpi_select="omx"
2284 qsv_deps="libmfx"
2285 qsvdec_select="qsv"
2286 qsvenc_select="qsv"
2287 qsvvpp_select="qsv"
2288 vaapi_encode_deps="vaapi"
2289
2290 hwupload_cuda_filter_deps="cuda"
2291 scale_npp_filter_deps="cuda libnpp"
2292
2293 h264_mmal_decoder_deps="mmal"
2294 h264_nvenc_encoder_deps="nvenc"
2295 h264_omx_encoder_deps="omx"
2296 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2297 h264_qsv_encoder_select="qsvenc"
2298 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2299 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2300 hevc_nvenc_encoder_deps="nvenc"
2301 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2302 hevc_qsv_encoder_select="hevc_ps qsvenc"
2303 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2304 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2305 mjpeg_qsv_encoder_deps="libmfx"
2306 mjpeg_qsv_encoder_select="qsvenc"
2307 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2308 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2309 mpeg2_mmal_decoder_deps="mmal"
2310 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2311 mpeg2_qsv_encoder_select="qsvenc"
2312 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2313 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2314 mpeg4_omx_encoder_deps="omx"
2315 vc1_mmal_decoder_deps="mmal"
2316 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2317 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2318 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2319 vp8_vaapi_encoder_select="vaapi_encode"
2320 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2321 vp9_vaapi_encoder_select="vaapi_encode"
2322
2323 nvenc_h264_encoder_select="h264_nvenc_encoder"
2324 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2325
2326 # parsers
2327 aac_parser_select="adts_header"
2328 h264_parser_select="golomb h264dsp h264parse"
2329 hevc_parser_select="hevc_ps"
2330 mpegaudio_parser_select="mpegaudioheader"
2331 mpegvideo_parser_select="mpegvideo"
2332 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2333 vc1_parser_select="vc1dsp"
2334
2335 # bitstream_filters
2336 aac_adtstoasc_bsf_select="adts_header"
2337 h264_metadata_bsf_select="cbs_h264"
2338 h264_redundant_pps_bsf_select="cbs_h264"
2339 hevc_metadata_bsf_select="cbs_h265"
2340 mjpeg2jpeg_bsf_select="jpegtables"
2341 mpeg2_metadata_bsf_select="cbs_mpeg2"
2342 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2343
2344 # external libraries
2345 avisynth_deps="LoadLibrary"
2346 avxsynth_deps="libdl"
2347 avisynth_demuxer_deps_any="avisynth avxsynth"
2348 avisynth_demuxer_select="riffdec"
2349 libdcadec_decoder_deps="libdcadec"
2350 libfaac_encoder_deps="libfaac"
2351 libfaac_encoder_select="audio_frame_queue"
2352 libfdk_aac_decoder_deps="libfdk_aac"
2353 libfdk_aac_encoder_deps="libfdk_aac"
2354 libfdk_aac_encoder_select="audio_frame_queue"
2355 libgsm_decoder_deps="libgsm"
2356 libgsm_encoder_deps="libgsm"
2357 libgsm_ms_decoder_deps="libgsm"
2358 libgsm_ms_encoder_deps="libgsm"
2359 libilbc_decoder_deps="libilbc"
2360 libilbc_encoder_deps="libilbc"
2361 libkvazaar_encoder_deps="libkvazaar"
2362 libmp3lame_encoder_deps="libmp3lame"
2363 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2364 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2365 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2366 libopencore_amrnb_encoder_select="audio_frame_queue"
2367 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2368 libopenh264_decoder_deps="libopenh264"
2369 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2370 libopenh264_encoder_deps="libopenh264"
2371 libopenjpeg_decoder_deps="libopenjpeg"
2372 libopenjpeg_encoder_deps="libopenjpeg"
2373 libopus_decoder_deps="libopus"
2374 libopus_encoder_deps="libopus"
2375 libopus_encoder_select="audio_frame_queue"
2376 libschroedinger_decoder_deps="libschroedinger"
2377 libschroedinger_encoder_deps="libschroedinger"
2378 libspeex_decoder_deps="libspeex"
2379 libspeex_encoder_deps="libspeex"
2380 libspeex_encoder_select="audio_frame_queue"
2381 libtheora_encoder_deps="libtheora"
2382 libtwolame_encoder_deps="libtwolame"
2383 libvo_aacenc_encoder_deps="libvo_aacenc"
2384 libvo_aacenc_encoder_select="audio_frame_queue"
2385 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2386 libvorbis_encoder_deps="libvorbis"
2387 libvorbis_encoder_select="audio_frame_queue"
2388 libvpx_vp8_decoder_deps="libvpx"
2389 libvpx_vp8_encoder_deps="libvpx"
2390 libvpx_vp9_decoder_deps="libvpx"
2391 libvpx_vp9_encoder_deps="libvpx"
2392 libwavpack_encoder_deps="libwavpack"
2393 libwavpack_encoder_select="audio_frame_queue"
2394 libwebp_encoder_deps="libwebp"
2395 libx262_encoder_deps="libx262"
2396 libx264_encoder_deps="libx264"
2397 libx265_encoder_deps="libx265"
2398 libxavs_encoder_deps="libxavs"
2399 libxvid_encoder_deps="libxvid mkstemp"
2400
2401 # demuxers / muxers
2402 ac3_demuxer_select="ac3_parser"
2403 asf_demuxer_select="riffdec"
2404 asf_muxer_select="riffenc"
2405 asf_stream_muxer_select="asf_muxer"
2406 avi_demuxer_select="iso_media riffdec"
2407 avi_muxer_select="riffenc"
2408 caf_demuxer_select="iso_media riffdec"
2409 dash_muxer_select="mp4_muxer"
2410 dirac_demuxer_select="dirac_parser"
2411 dv_demuxer_select="dvprofile"
2412 dv_muxer_select="dvprofile"
2413 dxa_demuxer_select="riffdec"
2414 eac3_demuxer_select="ac3_parser"
2415 f4v_muxer_select="mov_muxer"
2416 flac_demuxer_select="flac_parser"
2417 hds_muxer_select="flv_muxer"
2418 hls_muxer_select="mpegts_muxer"
2419 ipod_muxer_select="mov_muxer"
2420 ismv_muxer_select="mov_muxer"
2421 matroska_audio_muxer_select="matroska_muxer"
2422 matroska_demuxer_select="iso_media riffdec"
2423 matroska_demuxer_suggest="bzlib lzo zlib"
2424 matroska_muxer_select="iso_media riffenc"
2425 mmf_muxer_select="riffenc"
2426 mov_demuxer_select="iso_media riffdec"
2427 mov_demuxer_suggest="zlib"
2428 mov_muxer_select="iso_media riffenc rtpenc_chain"
2429 mp3_demuxer_select="mpegaudio_parser"
2430 mp3_muxer_select="mpegaudioheader"
2431 mp4_muxer_select="mov_muxer"
2432 mpegts_demuxer_select="iso_media"
2433 mpegts_muxer_select="adts_muxer latm_muxer"
2434 mpegtsraw_demuxer_select="mpegts_demuxer"
2435 mxf_d10_muxer_select="mxf_muxer"
2436 nut_muxer_select="riffenc"
2437 nuv_demuxer_select="riffdec"
2438 oga_muxer_select="ogg_muxer"
2439 ogg_demuxer_select="dirac_parse"
2440 opus_muxer_select="ogg_muxer"
2441 psp_muxer_select="mov_muxer"
2442 rtp_demuxer_select="sdp_demuxer"
2443 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2444 rtsp_demuxer_select="http_protocol rtpdec"
2445 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2446 sap_demuxer_select="sdp_demuxer"
2447 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2448 sdp_demuxer_select="rtpdec"
2449 smoothstreaming_muxer_select="ismv_muxer"
2450 spdif_demuxer_select="adts_header"
2451 spdif_muxer_select="adts_header"
2452 spx_muxer_select="ogg_muxer"
2453 swf_demuxer_suggest="zlib"
2454 tak_demuxer_select="tak_parser"
2455 tg2_muxer_select="mov_muxer"
2456 tgp_muxer_select="mov_muxer"
2457 w64_demuxer_select="wav_demuxer"
2458 wav_demuxer_select="riffdec"
2459 wav_muxer_select="riffenc"
2460 webm_muxer_select="iso_media riffenc"
2461 wtv_demuxer_select="mpegts_demuxer riffdec"
2462 xmv_demuxer_select="riffdec"
2463 xwma_demuxer_select="riffdec"
2464
2465 # indevs / outdevs
2466 alsa_indev_deps="alsa"
2467 alsa_outdev_deps="alsa"
2468 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2469 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2470 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2471 dv1394_indev_deps="dv1394"
2472 dv1394_indev_select="dv_demuxer"
2473 fbdev_indev_deps="linux_fb_h"
2474 jack_indev_deps="libjack"
2475 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2476 libcdio_indev_deps="libcdio"
2477 libdc1394_indev_deps="libdc1394"
2478 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2479 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2480 pulse_indev_deps="libpulse"
2481 sndio_indev_deps="sndio"
2482 sndio_outdev_deps="sndio"
2483 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2484 vfwcap_indev_deps="vfw32 vfwcap_defines"
2485 xcbgrab_indev_deps="libxcb libxcb_shape"
2486 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2487
2488 # protocols
2489 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2490 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2491 ffrtmpcrypt_protocol_select="tcp_protocol"
2492 ffrtmphttp_protocol_conflict="librtmp_protocol"
2493 ffrtmphttp_protocol_select="http_protocol"
2494 gopher_protocol_select="network"
2495 http_protocol_select="tcp_protocol"
2496 http_protocol_suggest="zlib"
2497 httpproxy_protocol_select="tcp_protocol"
2498 httpproxy_protocol_suggest="zlib"
2499 https_protocol_select="tls_protocol"
2500 https_protocol_suggest="zlib"
2501 icecast_protocol_select="http_protocol"
2502 librtmp_protocol_deps="librtmp"
2503 librtmpe_protocol_deps="librtmp"
2504 librtmps_protocol_deps="librtmp"
2505 librtmpt_protocol_deps="librtmp"
2506 librtmpte_protocol_deps="librtmp"
2507 mmsh_protocol_select="http_protocol"
2508 mmst_protocol_select="network"
2509 rtmp_protocol_conflict="librtmp_protocol"
2510 rtmp_protocol_select="tcp_protocol"
2511 rtmp_protocol_suggest="zlib"
2512 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2513 rtmpe_protocol_suggest="zlib"
2514 rtmps_protocol_conflict="librtmp_protocol"
2515 rtmps_protocol_select="tls_protocol"
2516 rtmps_protocol_suggest="zlib"
2517 rtmpt_protocol_select="ffrtmphttp_protocol"
2518 rtmpt_protocol_suggest="zlib"
2519 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2520 rtmpte_protocol_suggest="zlib"
2521 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2522 rtmpts_protocol_suggest="zlib"
2523 rtp_protocol_select="udp_protocol"
2524 sctp_protocol_deps="struct_sctp_event_subscribe"
2525 sctp_protocol_select="network"
2526 srtp_protocol_select="rtp_protocol srtp"
2527 tcp_protocol_select="network"
2528 tls_protocol_deps_any="gnutls openssl"
2529 tls_protocol_select="tcp_protocol"
2530 udp_protocol_select="network"
2531 unix_protocol_deps="sys_un_h"
2532 unix_protocol_select="network"
2533
2534 # filters
2535 asyncts_filter_deps="avresample"
2536 blackframe_filter_deps="gpl"
2537 boxblur_filter_deps="gpl"
2538 bs2b_filter_deps="libbs2b"
2539 cropdetect_filter_deps="gpl"
2540 deinterlace_qsv_filter_deps="libmfx"
2541 deinterlace_vaapi_filter_deps="vaapi"
2542 delogo_filter_deps="gpl"
2543 drawtext_filter_deps="libfreetype"
2544 drawtext_filter_suggest="libfontconfig"
2545 frei0r_filter_deps="frei0r libdl"
2546 frei0r_src_filter_deps="frei0r libdl"
2547 hdcd_filter_deps="libhdcd"
2548 hqdn3d_filter_deps="gpl"
2549 interlace_filter_deps="gpl"
2550 movie_filter_deps="avcodec avformat"
2551 ocv_filter_deps="libopencv"
2552 overlay_qsv_filter_deps="libmfx"
2553 overlay_qsv_filter_select="qsvvpp"
2554 resample_filter_deps="avresample"
2555 scale_filter_deps="swscale"
2556 scale_qsv_filter_deps="libmfx"
2557 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2558 vpp_qsv_filter_deps="libmfx"
2559 vpp_qsv_filter_select="qsvvpp"
2560
2561 # examples
2562 decode_audio_example_deps="avcodec avutil"
2563 decode_video_example_deps="avcodec avutil"
2564 encode_audio_example_deps="avcodec avutil"
2565 encode_video_example_deps="avcodec avutil"
2566 filter_audio_example_deps="avfilter avutil"
2567 metadata_example_deps="avformat avutil"
2568 output_example_deps="avcodec avformat avresample avutil swscale"
2569 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2570 transcode_aac_example_deps="avcodec avformat avresample"
2571
2572 # EXTRALIBS_LIST
2573 cpu_init_extralibs="pthreads_extralibs"
2574 cws2fws_extralibs="zlib_extralibs"
2575
2576 # libraries, in linking order
2577 avcodec_deps="avutil"
2578 avcodec_select="null_bsf"
2579 avdevice_deps="avformat avcodec avutil"
2580 avfilter_deps="avutil"
2581 avformat_deps="avcodec avutil"
2582 avformat_suggest="network"
2583 avresample_deps="avutil"
2584 swscale_deps="avutil"
2585
2586 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2587 avdevice_extralibs="libm_extralibs"
2588 avformat_extralibs="libm_extralibs"
2589 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2590 avresample_extralibs="libm_extralibs"
2591 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2592 swscale_extralibs="libm_extralibs"
2593
2594 # programs
2595 avconv_deps="avcodec avfilter avformat avresample swscale"
2596 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2597 fps_filter null_filter resample_filter scale_filter
2598 trim_filter"
2599 avconv_suggest="psapi shell32"
2600 avplay_deps="avcodec avfilter avformat avresample sdl"
2601 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2602 avplay_suggest="shell32"
2603 avprobe_deps="avcodec avformat"
2604 avprobe_suggest="shell32"
2605
2606 # documentation
2607 pod2man_deps="doc"
2608 texi2html_deps="doc"
2609
2610 # default parameters
2611
2612 logfile="avbuild/config.log"
2613
2614 # installation paths
2615 prefix_default="/usr/local"
2616 bindir_default='${prefix}/bin'
2617 datadir_default='${prefix}/share/avconv'
2618 docdir_default='${prefix}/share/doc/libav'
2619 incdir_default='${prefix}/include'
2620 libdir_default='${prefix}/lib'
2621 mandir_default='${prefix}/share/man'
2622 shlibdir_default="$libdir_default"
2623
2624 # toolchain
2625 ar_default="ar"
2626 cc_default="gcc"
2627 host_cc_default="gcc"
2628 x86asmexe_default="nasm"
2629 ln_s="ln -s -f"
2630 nm_default="nm -g"
2631 pkg_config_default=pkg-config
2632 ranlib="ranlib"
2633 strip="strip"
2634 version_script='--version-script'
2635
2636 # machine
2637 arch_default=$(uname -m)
2638 cpu="generic"
2639 intrinsics="none"
2640
2641 # OS
2642 target_os_default=$(tolower $(uname -s))
2643 host_os=$target_os_default
2644
2645 # configurable options
2646 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2647
2648 enable asm
2649 enable debug
2650 enable doc
2651 enable faan faandct faanidct
2652 enable optimizations
2653 enable safe_bitstream_reader
2654 enable static
2655 enable swscale_alpha
2656 enable valgrind_backtrace
2657
2658 # By default, enable only those hwaccels that have no external dependencies.
2659 enable d3d11va dxva2 vda vdpau
2660
2661 # internal components are enabled by default
2662 enable $EXTRALIBS_LIST
2663
2664 # Avoid external, non-system, libraries getting enabled by dependency resolution
2665 disable $EXTERNAL_LIBRARY_LIST
2666
2667 # build settings
2668 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2669 LIBPREF="lib"
2670 LIBSUF=".a"
2671 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2672 SLIBPREF="lib"
2673 SLIBSUF=".so"
2674 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2675 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2676 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2677 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2678 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2679 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2680 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2681
2682 asflags_filter=echo
2683 cflags_filter=echo
2684 ldflags_filter=echo
2685
2686 AS_C='-c'
2687 AS_O='-o $@'
2688 CC_C='-c'
2689 CC_E='-E -o $@'
2690 CC_O='-o $@'
2691 OBJCC_C='-c'
2692 OBJCC_E='-E -o $@'
2693 OBJCC_O='-o $@'
2694 X86ASM_O='-o $@'
2695 LD_O='-o $@'
2696 LD_LIB='-l%'
2697 LD_PATH='-L'
2698 HOSTCC_C='-c'
2699 HOSTCC_E='-E -o $@'
2700 HOSTCC_O='-o $@'
2701 HOSTLD_O='-o $@'
2702
2703 host_extralibs='-lm'
2704 host_cflags_filter=echo
2705 host_ldflags_filter=echo
2706
2707 target_path='$(CURDIR)'
2708
2709 # since the object filename is not given with the -MM flag, the compiler
2710 # is only able to print the basename, and we must add the path ourselves
2711 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2712 DEPFLAGS='-MM'
2713
2714 mkdir -p avbuild
2715
2716 # find source path
2717 if test -f configure; then
2718 source_path=.
2719 else
2720 source_path=$(cd $(dirname "$0"); pwd)
2721 echo "$source_path" | grep -q '[[:blank:]]' &&
2722 die "Out of tree builds are impossible with whitespace in source path."
2723 test -e "$source_path/config.h" &&
2724 die "Out of tree builds are impossible with config.h in source dir."
2725 fi
2726
2727 for v in "$@"; do
2728 r=${v#*=}
2729 l=${v%"$r"}
2730 r=$(sh_quote "$r")
2731 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2732 done
2733
2734 find_things(){
2735 thing=$1
2736 pattern=$2
2737 file=$source_path/$3
2738 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2739 }
2740
2741 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2742 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2743 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2744 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2745 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2746 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2747 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2748 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2749 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2750
2751 find_things_extern(){
2752 thing=$1
2753 pattern=$2
2754 file=$source_path/$3
2755 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2756 }
2757
2758 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2759 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2760
2761 AVCODEC_COMPONENTS_LIST="
2762 $BSF_LIST
2763 $DECODER_LIST
2764 $ENCODER_LIST
2765 $HWACCEL_LIST
2766 $PARSER_LIST
2767 "
2768
2769 AVDEVICE_COMPONENTS_LIST="
2770 $INDEV_LIST
2771 $OUTDEV_LIST
2772 "
2773
2774 AVFILTER_COMPONENTS_LIST="
2775 $FILTER_LIST
2776 "
2777
2778 AVFORMAT_COMPONENTS_LIST="
2779 $DEMUXER_LIST
2780 $MUXER_LIST
2781 $PROTOCOL_LIST
2782 "
2783
2784 ALL_COMPONENTS="
2785 $AVCODEC_COMPONENTS_LIST
2786 $AVDEVICE_COMPONENTS_LIST
2787 $AVFILTER_COMPONENTS_LIST
2788 $AVFORMAT_COMPONENTS_LIST
2789 "
2790
2791 for n in $COMPONENT_LIST; do
2792 v=$(toupper ${n%s})_LIST
2793 eval enable \$$v
2794 eval ${n}_if_any="\$$v"
2795 done
2796
2797 enable $ARCH_EXT_LIST
2798
2799 die_unknown(){
2800 echo "Unknown option \"$1\"."
2801 echo "See $0 --help for available options."
2802 exit 1
2803 }
2804
2805 print_3_columns() {
2806 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2807 }
2808
2809 show_list() {
2810 suffix=_$1
2811 shift
2812 echo $* | sed s/$suffix//g | print_3_columns
2813 exit 0
2814 }
2815
2816 rand_list(){
2817 IFS=', '
2818 set -- $*
2819 unset IFS
2820 for thing; do
2821 comp=${thing%:*}
2822 prob=${thing#$comp}
2823 prob=${prob#:}
2824 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2825 echo "prob ${prob:-0.5}"
2826 printf '%s\n' $comp
2827 done
2828 }
2829
2830 do_random(){
2831 action=$1
2832 shift
2833 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2834 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2835 }
2836
2837 for opt do
2838 optval="${opt#*=}"
2839 case "$opt" in
2840 --extra-ldflags=*)
2841 add_ldflags $optval
2842 ;;
2843 --extra-ldexeflags=*)
2844 add_ldexeflags $optval
2845 ;;
2846 --extra-ldsoflags=*)
2847 add_ldsoflags $optval
2848 ;;
2849 --extra-libs=*)
2850 add_extralibs $optval
2851 ;;
2852 --disable-devices)
2853 disable $INDEV_LIST $OUTDEV_LIST
2854 ;;
2855 --enable-debug=*)
2856 debuglevel="$optval"
2857 ;;
2858 --disable-programs)
2859 disable $PROGRAM_LIST
2860 ;;
2861 --disable-everything)
2862 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2863 ;;
2864 --disable-all)
2865 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2866 disable $LIBRARY_LIST $PROGRAM_LIST doc
2867 ;;
2868 --enable-random|--disable-random)
2869 action=${opt%%-random}
2870 do_random ${action#--} $COMPONENT_LIST
2871 ;;
2872 --enable-random=*|--disable-random=*)
2873 action=${opt%%-random=*}
2874 do_random ${action#--} $optval
2875 ;;
2876 --enable-*=*|--disable-*=*)
2877 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2878 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2879 eval list=\$$(toupper $thing)_LIST
2880 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2881 $action $(filter "$name" $list)
2882 ;;
2883 --enable-avserver|--disable-avserver*)
2884 warn "avserver has been removed, the ${opt} option is only"\
2885 "provided for compatibility and will be removed in the future"
2886 ;;
2887 --enable-yasm|--disable-yasm)
2888 warn "The ${opt} option is only provided for compatibility and will be\n"\
2889 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2890 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2891 ;;
2892 --enable-?*|--disable-?*)
2893 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2894 if is_in $option $COMPONENT_LIST; then
2895 test $action = disable && action=unset
2896 eval $action \$$(toupper ${option%s})_LIST
2897 elif is_in $option $CMDLINE_SELECT; then
2898 $action $option
2899 else
2900 die_unknown $opt
2901 fi
2902 ;;
2903 --list-*)
2904 NAME="${opt#--list-}"
2905 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2906 NAME=${NAME%s}
2907 eval show_list $NAME \$$(toupper $NAME)_LIST
2908 ;;
2909 --help|-h) show_help
2910 ;;
2911 --quiet|-q) quiet=yes
2912 ;;
2913 *)
2914 optname="${opt%%=*}"
2915 optname="${optname#--}"
2916 optname=$(echo "$optname" | sed 's/-/_/g')
2917 if is_in $optname $CMDLINE_SET; then
2918 eval $optname='$optval'
2919 elif is_in $optname $CMDLINE_APPEND; then
2920 append $optname "$optval"
2921 else
2922 die_unknown $opt
2923 fi
2924 ;;
2925 esac
2926 done
2927
2928 for e in $env; do
2929 eval "export $e"
2930 done
2931
2932 disabled logging && logfile=/dev/null
2933
2934 # Die early if licensing-related configure options are incompatible.
2935 die_license_disabled() {
2936 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2937 }
2938
2939 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2940 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2941 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2942
2943 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2944
2945 enabled_all gnutls openssl &&
2946 die "GnuTLS and OpenSSL must not be enabled at the same time."
2947
2948 # Disable all the library-specific components if the library itself
2949 # is disabled, see AVCODEC_LIST and following _LIST variables.
2950
2951 disable_components(){
2952 disabled ${1} && disable $(
2953 eval components="\$$(toupper ${1})_COMPONENTS"
2954 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2955 )
2956 }
2957
2958 map 'disable_components $v' $LIBRARY_LIST
2959
2960 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2961 set >> $logfile
2962
2963 case "$toolchain" in
2964 *-asan)
2965 cc_default="${toolchain%-asan}"
2966 add_cflags -fsanitize=address
2967 add_ldflags -fsanitize=address
2968 ;;
2969 *-msan)
2970 cc_default="${toolchain%-msan}"
2971 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2972 add_ldflags -fsanitize=memory
2973 ;;
2974 *-tsan)
2975 cc_default="${toolchain%-tsan}"
2976 add_cflags -fsanitize=thread -fPIE
2977 add_ldflags -fsanitize=thread -pie
2978 case "$toolchain" in
2979 gcc-tsan)
2980 add_cflags -fPIC
2981 add_ldflags -fPIC
2982 ;;
2983 esac
2984 ;;
2985 *-usan)
2986 cc_default="${toolchain%-usan}"
2987 add_cflags -fsanitize=undefined
2988 add_ldflags -fsanitize=undefined
2989 case "$toolchain" in
2990 clang-usan)
2991 add_cflags -O1
2992 ;;
2993 esac
2994 ;;
2995 valgrind-*)
2996 target_exec_default="valgrind"
2997 case "$toolchain" in
2998 valgrind-massif)
2999 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
3000 ;;
3001 valgrind-memcheck)
3002 target_exec_args="--track-origins=yes --leak-check=full"
3003 ;;
3004 esac
3005 ;;
3006 msvc)
3007 # Check whether the current MSVC version needs the C99 converter.
3008 # From MSVC 2013 (compiler major version 18) onwards, it does actually
3009 # support enough of C99 to build libav. Default to the new
3010 # behaviour if the regexp was unable to match anything, since this
3011 # successfully parses the version number of existing supported
3012 # versions that require the converter (MSVC 2010 and 2012).
3013 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3014 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3015 cc_default="cl"
3016 else
3017 cc_default="c99wrap cl"
3018 fi
3019 ld_default="$source_path/compat/windows/mslink"
3020 nm_default="dumpbin -symbols"
3021 ar_default="lib"
3022 case "$arch" in
3023 arm*)
3024 as_default="armasm"
3025 ;;
3026 esac
3027 target_os_default="win32"
3028 # Use a relative path for TMPDIR. This makes sure all the
3029 # ffconf temp files are written with a relative path, avoiding
3030 # issues with msys/win32 path conversion for MSVC parameters
3031 # such as -Fo<file> or -out:<file>.
3032 TMPDIR=.
3033 ;;
3034 icl)
3035 cc_default="icl"
3036 ld_default="xilink"
3037 nm_default="dumpbin -symbols"
3038 ar_default="xilib"
3039 target_os_default="win32"
3040 TMPDIR=.
3041 ;;
3042 gcov)
3043 add_cflags -fprofile-arcs -ftest-coverage
3044 add_ldflags -fprofile-arcs -ftest-coverage
3045 ;;
3046 llvm-cov)
3047 add_cflags -fprofile-arcs -ftest-coverage
3048 add_ldflags --coverage
3049 ;;
3050 hardened)
3051 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3052 add_cflags -fno-strict-overflow -fstack-protector-all
3053 add_ldflags -Wl,-z,relro -Wl,-z,now
3054 ;;
3055 ?*)
3056 die "Unknown toolchain $toolchain"
3057 ;;
3058 esac
3059
3060 test -n "$cross_prefix" && enable cross_compile
3061
3062 if enabled cross_compile; then
3063 test -n "$arch" && test -n "$target_os" ||
3064 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3065 fi
3066
3067 ar_default="${cross_prefix}${ar_default}"
3068 cc_default="${cross_prefix}${cc_default}"
3069 objcc_default="${cross_prefix}${objcc_default}"
3070 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3071 nm_default="${cross_prefix}${nm_default}"
3072 pkg_config_default="${cross_prefix}${pkg_config_default}"
3073 ranlib="${cross_prefix}${ranlib}"
3074 strip="${cross_prefix}${strip}"
3075
3076 sysinclude_default="${sysroot}/usr/include"
3077
3078 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3079 enabled cross_compile || host_cc_default=$cc
3080 set_default host_cc
3081
3082 if ! $pkg_config --version >/dev/null 2>&1; then
3083 warn "$pkg_config not found, library detection may fail."
3084 pkg_config=false
3085 fi
3086
3087 exesuf() {
3088 case $1 in
3089 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3090 esac
3091 }
3092
3093 EXESUF=$(exesuf $target_os)
3094 HOSTEXESUF=$(exesuf $host_os)
3095
3096 # set temporary file name
3097 : ${TMPDIR:=$TEMPDIR}
3098 : ${TMPDIR:=$TMP}
3099 : ${TMPDIR:=/tmp}
3100
3101 if ! check_cmd mktemp -u XXXXXX; then
3102 # simple replacement for missing mktemp
3103 # NOT SAFE FOR GENERAL USE
3104 mktemp(){
3105 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3106 echo "$tmpname"
3107 mkdir "$tmpname"
3108 }
3109 fi
3110
3111 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3112 die "Unable to create temporary directory in $TMPDIR."
3113
3114 tmpfile(){
3115 tmp="${AVTMPDIR}/test"$2
3116 (set -C; exec > $tmp) 2> /dev/null ||
3117 die "Unable to create temporary file in $AVTMPDIR."
3118 eval $1=$tmp
3119 }
3120
3121 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3122 trap 'exit 2' INT
3123
3124 tmpfile TMPASM .asm
3125 tmpfile TMPC .c
3126 tmpfile TMPE $EXESUF
3127 tmpfile TMPH .h
3128 tmpfile TMPO .o
3129 tmpfile TMPS .S
3130 tmpfile TMPSH .sh
3131 tmpfile TMPV .ver
3132
3133 unset -f mktemp
3134
3135 chmod +x $TMPE
3136
3137 # make sure we can execute files in $TMPDIR
3138 cat > $TMPSH 2>> $logfile <<EOF
3139 #! /bin/sh
3140 EOF
3141 chmod +x $TMPSH >> $logfile 2>&1
3142 if ! $TMPSH >> $logfile 2>&1; then
3143 cat <<EOF
3144 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3145 variable to another directory and make sure that it is not mounted noexec.
3146 EOF
3147 die "Sanity test failed."
3148 fi
3149
3150 armasm_flags(){
3151 for flag; do
3152 case $flag in
3153 # Filter out MSVC cl.exe options from cflags that shouldn't
3154 # be passed to gas-preprocessor
3155 -M[TD]*) ;;
3156 *) echo $flag ;;
3157 esac
3158 done
3159 }
3160
3161 ccc_flags(){
3162 for flag; do
3163 case $flag in
3164 -std=c99) echo -c99 ;;
3165 -mcpu=*) echo -arch ${flag#*=} ;;
3166 -mieee) echo -ieee ;;
3167 -O*|-fast) echo $flag ;;
3168 -fno-math-errno) echo -assume nomath_errno ;;
3169 -g) echo -g3 ;;
3170 -Wall) echo -msg_enable level2 ;;
3171 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3172 -Wl,*) echo $flag ;;
3173 -f*|-W*) ;;
3174 *) echo $flag ;;
3175 esac
3176 done
3177 }
3178
3179 cparser_flags(){
3180 for flag; do
3181 case $flag in
3182 -Wno-switch) echo -Wno-switch-enum ;;
3183 -Wno-format-zero-length) ;;
3184 -Wdisabled-optimization) ;;
3185 -Wno-pointer-sign) echo -Wno-other ;;
3186 *) echo $flag ;;
3187 esac
3188 done
3189 }
3190
3191 msvc_common_flags(){
3192 for flag; do
3193 case $flag in
3194 # In addition to specifying certain flags under the compiler
3195 # specific filters, they must be specified here as well or else the
3196 # generic catch all at the bottom will print the original flag.
3197 -Wall) ;;
3198 -Wextra) ;;
3199 -std=c99) ;;
3200 # Common flags
3201 -fomit-frame-pointer) ;;
3202 -g) echo -Z7 ;;
3203 -fno-math-errno) ;;
3204 -fno-common) ;;
3205 -fno-signed-zeros) ;;
3206 -fPIC) ;;
3207 -mthumb) ;;
3208 -march=*) ;;
3209 -lz) echo zlib.lib ;;
3210 -lx264) echo libx264.lib ;;
3211 -l*) echo ${flag#-l}.lib ;;
3212 -L*) echo -libpath:${flag#-L} ;;
3213 *) echo $flag ;;
3214 esac
3215 done
3216 }
3217
3218 msvc_flags(){
3219 msvc_common_flags "$@"
3220 for flag; do
3221 case $flag in
3222 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3223 -wd4554 ;;
3224 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3225 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3226 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3227 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3228 esac
3229 done
3230 }
3231
3232 icl_flags(){
3233 msvc_common_flags "$@"
3234 for flag; do
3235 case $flag in
3236 # Despite what Intel's documentation says -Wall, which is supported
3237 # on Windows, does enable remarks so disable them here.
3238 -Wall) echo $flag -Qdiag-disable:remark ;;
3239 -std=c99) echo -Qstd=c99 ;;
3240 esac
3241 done
3242 }
3243
3244 pgi_flags(){
3245 for flag; do
3246 case $flag in
3247 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3248 -fomit-frame-pointer) echo -Mnoframe ;;
3249 -g) echo -gopt ;;
3250 *) echo $flag ;;
3251 esac
3252 done
3253 }
3254
3255 suncc_flags(){
3256 for flag; do
3257 case $flag in
3258 -march=*|-mcpu=*)
3259 case "${flag#*=}" in
3260 native) echo -xtarget=native ;;
3261 v9|niagara) echo -xarch=sparc ;;
3262 ultrasparc) echo -xarch=sparcvis ;;
3263 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3264 i586|pentium) echo -xchip=pentium ;;
3265 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3266 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3267 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3268 pentium4*) echo -xtarget=pentium4 ;;
3269 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3270 *-sse3) echo -xarch=sse3 ;;
3271 core2) echo -xarch=ssse3 -xchip=core2 ;;
3272 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3273 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3274 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3275 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3276 k8|opteron|athlon64|athlon-fx)
3277 echo -xarch=sse2a ;;
3278 athlon*) echo -xarch=pentium_proa ;;
3279 esac
3280 ;;
3281 -std=c99) echo -xc99 ;;
3282 -fomit-frame-pointer) echo -xregs=frameptr ;;
3283 -fPIC) echo -KPIC -xcode=pic32 ;;
3284 -W*,*) echo $flag ;;
3285 -f*-*|-W*|-mimpure-text) ;;
3286 -shared) echo -G ;;
3287 *) echo $flag ;;
3288 esac
3289 done
3290 }
3291
3292 tms470_flags(){
3293 for flag; do
3294 case $flag in
3295 -march=*|-mcpu=*)
3296 case "${flag#*=}" in
3297 armv7-a|cortex-a*) echo -mv=7a8 ;;
3298 armv7-r|cortex-r*) echo -mv=7r4 ;;
3299 armv7-m|cortex-m*) echo -mv=7m3 ;;
3300 armv6*|arm11*) echo -mv=6 ;;
3301 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3302 echo -mv=5e ;;
3303 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3304 esac
3305 ;;
3306 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3307 -mfpu=vfp) echo --float_support=vfpv2 ;;
3308 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3309 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3310 -msoft-float) echo --float_support=vfplib ;;
3311 -O[0-3]|-mf=*) echo $flag ;;
3312 -g) echo -g -mn ;;
3313 -pds=*) echo $flag ;;
3314 -D*|-I*) echo $flag ;;
3315 --gcc|--abi=*) echo $flag ;;
3316 -me) echo $flag ;;
3317 esac
3318 done
3319 }
3320
3321 probe_cc(){
3322 pfx=$1
3323 _cc=$2
3324
3325 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3326 unset _ld_o _ldflags _ld_lib _ld_path
3327 unset _depflags _DEPCMD _DEPFLAGS
3328 _flags_filter=echo
3329
3330 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3331 _type=llvm_gcc
3332 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3333 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3334 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3335 _cflags_speed='-O3'
3336 _cflags_size='-Os'
3337 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3338 _type=gcc
3339 gcc_version=$($_cc --version | head -n1)
3340 gcc_basever=$($_cc -dumpversion)
3341 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3342 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3343 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3344 if ! $_cc -dumpversion | grep -q '^2\.'; then
3345 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3346 fi
3347 _cflags_speed='-O3'
3348 _cflags_size='-Os'
3349 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3350 _type=icc
3351 _ident=$($_cc --version | head -n1)
3352 _depflags='-MMD'
3353 _cflags_speed='-O3'
3354 _cflags_size='-Os'
3355 _cflags_noopt='-O1'
3356 elif $_cc -v 2>&1 | grep -q xlc; then
3357 _type=xlc
3358 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3359 _cflags_speed='-O5'
3360 _cflags_size='-O5 -qcompact'
3361 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3362 _type=ccc
3363 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3364 _DEPFLAGS='-M'
3365 _cflags_speed='-fast'
3366 _cflags_size='-O1'
3367 _flags_filter=ccc_flags
3368 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3369 test -d "$sysroot" || die "No valid sysroot specified."
3370 _type=armcc
3371 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3372 armcc_conf="$PWD/armcc.conf"
3373 $_cc --arm_linux_configure \
3374 --arm_linux_config_file="$armcc_conf" \
3375 --configure_sysroot="$sysroot" \
3376 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3377 die "Error creating armcc configuration file."
3378 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3379 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3380 as_default="${cross_prefix}gcc"
3381 _depflags='-MMD'
3382 _cflags_speed='-O3'
3383 _cflags_size='-Os'
3384 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3385 _type=tms470
3386 _ident=$($_cc -version | head -n1 | tr -s ' ')
3387 _flags='--gcc --abi=eabi -me'
3388 _cc_e='-ppl -fe=$@'
3389 _cc_o='-fe=$@'
3390 _depflags='-ppa -ppd=$(@:.o=.d)'
3391 _cflags_speed='-O3 -mf=5'
3392 _cflags_size='-O3 -mf=2'
3393 _flags_filter=tms470_flags
3394 elif $_cc -v 2>&1 | grep -q clang; then
3395 _type=clang
3396 _ident=$($_cc --version 2>/dev/null | head -n1)
3397 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3398 _cflags_speed='-O3'
3399 _cflags_size='-Os'
3400 elif $_cc -V 2>&1 | grep -q Sun; then
3401 _type=suncc
3402 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3403 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3404 _DEPFLAGS='-xM1 -xc99'
3405 _ldflags='-std=c99'
3406 _cflags_speed='-O5'
3407 _cflags_size='-O5 -xspace'
3408 _flags_filter=suncc_flags
3409 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3410 _type=pathscale
3411 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3412 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3413 _cflags_speed='-O2'
3414 _cflags_size='-Os'
3415 _flags_filter='filter_out -Wdisabled-optimization'
3416 elif $_cc -v 2>&1 | grep -q Open64; then
3417 _type=open64
3418 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3419 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3420 _cflags_speed='-O2'
3421 _cflags_size='-Os'
3422 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3423 elif $_cc -V 2>&1 | grep -q Portland; then
3424 _type=pgi
3425 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3426 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3427 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3428 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3429 _cflags_noopt="-O1"
3430 _flags_filter=pgi_flags
3431 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3432 _type=armasm
3433 _ident=$($_cc | head -n1)
3434 # 4509: "This form of conditional instruction is deprecated"
3435 _flags="-nologo -ignore 4509"
3436 _flags_filter=armasm_flags
3437 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3438 _type=msvc
3439 _ident=$($_cc 2>&1 | head -n1)
3440 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3441 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3442 _cflags_speed="-O2"
3443 _cflags_size="-O1"
3444 _cflags_noopt="-O1"
3445 if $_cc -nologo- 2>&1 | grep -q Linker; then
3446 _ld_o='-out:$@'
3447 else
3448 _ld_o='-Fe$@'
3449 fi
3450 _cc_o='-Fo$@'
3451 _cc_e='-P -Fi$@'
3452 _flags_filter=msvc_flags
3453 _ld_lib='lib%.a'
3454 _ld_path='-libpath:'
3455 _flags='-nologo'
3456 elif $_cc 2>&1 | grep -q Intel; then
3457 _type=icl
3458 _ident=$($_cc 2>&1 | head -n1)
3459 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3460 # Not only is O3 broken on 13.x+ but it is slower on all previous
3461 # versions (tested) as well.
3462 _cflags_speed="-O2"
3463 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3464 if $_cc 2>&1 | grep -q Linker; then
3465 _ld_o='-out:$@'
3466 else
3467 _ld_o='-Fe$@'
3468 fi
3469 _cc_o='-Fo$@'
3470 _cc_e='-P'
3471 _flags_filter=icl_flags
3472 _ld_lib='lib%.a'
3473 _ld_path='-libpath:'
3474 # -Qdiag-error to make icl error when seeing certain unknown arguments
3475 _flags='-nologo -Qdiag-error:4044,10157'
3476 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3477 # with MSVC which enables it by default.
3478 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3479 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3480 # lld can emulate multiple different linkers; in ms link.exe mode,
3481 # the -? parameter gives the help output which contains an identifyable
3482 # string, while it gives an error in other modes.
3483 _type=lld-link
3484 # The link.exe mode doesn't have a switch for getting the version,
3485 # but we can force it back to gnu mode and get the version from there.
3486 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3487 _ld_o='-out:$@'
3488 _flags_filter=msvc_flags
3489 _ld_lib='lib%.a'
3490 _ld_path='-libpath:'
3491 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3492 _type=cparser
3493 _ident=$($_cc --version | head -n1)
3494 _depflags='-MMD'
3495 _cflags_speed='-O4'
3496 _cflags_size='-O2'
3497 _flags_filter=cparser_flags
3498 fi
3499
3500 eval ${pfx}_type=\$_type
3501 eval ${pfx}_ident=\$_ident
3502 }
3503
3504 set_ccvars(){
3505 eval ${1}_C=\${_cc_c-\${${1}_C}}
3506 eval ${1}_E=\${_cc_e-\${${1}_E}}
3507 eval ${1}_O=\${_cc_o-\${${1}_O}}
3508
3509 if [ -n "$_depflags" ]; then
3510 eval ${1}_DEPFLAGS=\$_depflags
3511 else
3512 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3513 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3514 eval DEP${1}FLAGS=\$_flags
3515 fi
3516 }
3517
3518 probe_cc cc "$cc"
3519 cflags_filter=$_flags_filter
3520 cflags_speed=$_cflags_speed
3521 cflags_size=$_cflags_size
3522 cflags_noopt=$_cflags_noopt
3523 add_cflags $_flags $_cflags
3524 cc_ldflags=$_ldflags
3525 set_ccvars CC
3526
3527 probe_cc hostcc "$host_cc"
3528 host_cflags_filter=$_flags_filter
3529 host_cflags_speed=$_cflags_speed
3530 add_host_cflags $_flags $_cflags
3531 set_ccvars HOSTCC
3532
3533 test -n "$cc_type" && enable $cc_type ||
3534 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3535
3536 : ${as_default:=$cc}
3537 : ${objcc_default:=$cc}
3538 : ${dep_cc_default:=$cc}
3539 : ${ld_default:=$cc}
3540 : ${host_ld_default:=$host_cc}
3541 set_default ar as objcc dep_cc ld host_ld
3542
3543 probe_cc as "$as"
3544 asflags_filter=$_flags_filter
3545 add_asflags $_flags $_cflags
3546 set_ccvars AS
3547
3548 probe_cc objcc "$objcc"
3549 objcflags_filter=$_flags_filter
3550 add_objcflags $_flags $_cflags
3551 set_ccvars OBJC
3552
3553 probe_cc ld "$ld"
3554 ldflags_filter=$_flags_filter
3555 add_ldflags $_flags $_ldflags
3556 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3557 LD_O=${_ld_o-$LD_O}
3558 LD_LIB=${_ld_lib-$LD_LIB}
3559 LD_PATH=${_ld_path-$LD_PATH}
3560
3561 probe_cc hostld "$host_ld"
3562 host_ldflags_filter=$_flags_filter
3563 add_host_ldflags $_flags $_ldflags
3564 HOSTLD_O=${_ld_o-$HOSTLD_O}
3565
3566 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3567 probe_cc depcc "$dep_cc"
3568 CCDEP=${_DEPCMD:-$DEPCMD}
3569 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3570 DEPCCFLAGS=$_flags
3571 fi
3572
3573 if $ar 2>&1 | grep -q Microsoft; then
3574 arflags="-nologo"
3575 ar_o='-out:$@'
3576 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3577 arflags="rq"
3578 ar_o='$@'
3579 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3580 arflags='-Xany -r -c'
3581 ar_o='$@'
3582 else
3583 arflags="rc"
3584 ar_o='$@'
3585 fi
3586
3587 add_cflags $extra_cflags
3588 add_objcflags $extra_objcflags
3589 add_asflags $extra_cflags
3590
3591 if test -n "$sysroot"; then
3592 case "$cc_type" in
3593 gcc|llvm_gcc|clang)
3594 add_cppflags --sysroot="$sysroot"
3595 add_ldflags --sysroot="$sysroot"
3596 ;;
3597 tms470)
3598 add_cppflags -I"$sysinclude"
3599 add_ldflags --sysroot="$sysroot"
3600 ;;
3601 esac
3602 fi
3603
3604 if test "$cpu" = host; then
3605 enabled cross_compile &&
3606 die "--cpu=host makes no sense when cross-compiling."
3607
3608 case "$cc_type" in
3609 gcc|llvm_gcc)
3610 check_native(){
3611 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3612 sed -n "/cc1.*$1=/{
3613 s/.*$1=\\([^ ]*\\).*/\\1/
3614 p
3615 q
3616 }" $TMPE
3617 }
3618 cpu=$(check_native -march || check_native -mcpu)
3619 ;;
3620 esac
3621
3622 test "${cpu:-host}" = host &&
3623 die "--cpu=host not supported with compiler $cc"
3624 fi
3625
3626 # Deal with common $arch aliases
3627 case "$arch" in
3628 aarch64|arm64)
3629 arch="aarch64"
3630 ;;
3631 arm*)
3632 arch="arm"
3633 ;;
3634 mips*|IP*)
3635 case "$arch" in
3636 *el)
3637 add_cppflags -EL
3638 add_ldflags -EL
3639 ;;
3640 *eb)
3641 add_cppflags -EB
3642 add_ldflags -EB
3643 ;;
3644 esac
3645 arch="mips"
3646 ;;
3647 parisc*|hppa*)
3648 arch="parisc"
3649 ;;
3650 "Power Macintosh"|ppc*|powerpc*)
3651 arch="ppc"
3652 ;;
3653 s390|s390x)
3654 arch="s390"
3655 ;;
3656 sh4|sh)
3657 arch="sh4"
3658 ;;
3659 sun4u|sparc*)
3660 arch="sparc"
3661 ;;
3662 tilegx|tile-gx)
3663 arch="tilegx"
3664 ;;
3665 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3666 arch="x86"
3667 ;;
3668 esac
3669
3670 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3671 enable $arch
3672
3673 # Add processor-specific flags
3674 if enabled aarch64; then
3675
3676 case $cpu in
3677 armv*)
3678 cpuflags="-march=$cpu"
3679 ;;
3680 *)
3681 cpuflags="-mcpu=$cpu"
3682 ;;
3683 esac
3684
3685 elif enabled alpha; then
3686
3687 cpuflags="-mcpu=$cpu"
3688
3689 elif enabled arm; then
3690
3691 check_arm_arch() {
3692 check_cpp_condition stddef.h \
3693 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3694 $cpuflags
3695 }
3696
3697 probe_arm_arch() {
3698 if check_arm_arch 4; then echo armv4
3699 elif check_arm_arch 4T; then echo armv4t
3700 elif check_arm_arch 5; then echo armv5
3701 elif check_arm_arch 5E; then echo armv5e
3702 elif check_arm_arch 5T; then echo armv5t
3703 elif check_arm_arch 5TE; then echo armv5te
3704 elif check_arm_arch 5TEJ; then echo armv5te
3705 elif check_arm_arch 6; then echo armv6
3706 elif check_arm_arch 6J; then echo armv6j
3707 elif check_arm_arch 6K; then echo armv6k
3708 elif check_arm_arch 6Z; then echo armv6z
3709 elif check_arm_arch 6ZK; then echo armv6zk
3710 elif check_arm_arch 6T2; then echo armv6t2
3711 elif check_arm_arch 7; then echo armv7
3712 elif check_arm_arch 7A 7_A; then echo armv7-a
3713 elif check_arm_arch 7S; then echo armv7-a
3714 elif check_arm_arch 7R 7_R; then echo armv7-r
3715 elif check_arm_arch 7M 7_M; then echo armv7-m
3716 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3717 elif check_arm_arch 8A 8_A; then echo armv8-a
3718 fi
3719 }
3720
3721 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3722
3723 case $cpu in
3724 armv*)
3725 cpuflags="-march=$cpu"
3726 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3727 ;;
3728 *)
3729 cpuflags="-mcpu=$cpu"
3730 case $cpu in
3731 cortex-a*) subarch=armv7a ;;
3732 cortex-r*) subarch=armv7r ;;
3733 cortex-m*) enable thumb; subarch=armv7m ;;
3734 arm11*) subarch=armv6 ;;
3735 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3736 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3737 *) subarch=$(probe_arm_arch) ;;
3738 esac
3739 ;;
3740 esac
3741
3742 case "$subarch" in
3743 armv5t*) enable fast_clz ;;
3744 armv[6-8]*) enable fast_clz fast_unaligned ;;
3745 esac
3746
3747 elif enabled avr32; then
3748
3749 case $cpu in
3750 ap7[02]0[0-2])
3751 subarch="avr32_ap"
3752 cpuflags="-mpart=$cpu"
3753 ;;
3754 ap)
3755 subarch="avr32_ap"
3756 cpuflags="-march=$cpu"
3757 ;;
3758 uc3[ab]*)
3759 subarch="avr32_uc"
3760 cpuflags="-mcpu=$cpu"
3761 ;;
3762 uc)
3763 subarch="avr32_uc"
3764 cpuflags="-march=$cpu"
3765 ;;
3766 esac
3767
3768 elif enabled bfin; then
3769
3770 cpuflags="-mcpu=$cpu"
3771
3772 elif enabled mips; then
3773
3774 cpuflags="-march=$cpu"
3775
3776 elif enabled ppc; then
3777
3778 disable ldbrx
3779
3780 case $(tolower $cpu) in
3781 601|ppc601|powerpc601)
3782 cpuflags="-mcpu=601"
3783 disable altivec
3784 ;;
3785 603*|ppc603*|powerpc603*)
3786 cpuflags="-mcpu=603"
3787 disable altivec
3788 ;;
3789 604*|ppc604*|powerpc604*)
3790 cpuflags="-mcpu=604"
3791 disable altivec
3792 ;;
3793 g3|75*|ppc75*|powerpc75*)
3794 cpuflags="-mcpu=750"
3795 disable altivec
3796 ;;
3797 g4|745*|ppc745*|powerpc745*)
3798 cpuflags="-mcpu=7450"
3799 disable vsx
3800 ;;
3801 74*|ppc74*|powerpc74*)
3802 cpuflags="-mcpu=7400"
3803 disable vsx
3804 ;;
3805 g5|970|ppc970|powerpc970)
3806 cpuflags="-mcpu=970"
3807 disable vsx
3808 ;;
3809 power[3-6]*)
3810 cpuflags="-mcpu=$cpu"
3811 disable vsx
3812 ;;
3813 power[7-8]*)
3814 cpuflags="-mcpu=$cpu"
3815 enable ldbrx
3816 ;;
3817 cell)
3818 cpuflags="-mcpu=cell"
3819 enable ldbrx
3820 disable vsx
3821 ;;
3822 e500mc)
3823 cpuflags="-mcpu=e500mc"
3824 disable altivec
3825 ;;
3826 e500v2)
3827 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3828 disable altivec
3829 disable dcbzl
3830 ;;
3831 e500)
3832 cpuflags="-mcpu=8540 -mhard-float"
3833 disable altivec
3834 disable dcbzl
3835 ;;
3836 esac
3837
3838 elif enabled sparc; then
3839
3840 case $cpu in
3841 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3842 cpuflags="-mcpu=$cpu"
3843 ;;
3844 ultrasparc*|niagara[234])
3845 cpuflags="-mcpu=$cpu"
3846 ;;
3847 esac
3848
3849 elif enabled x86; then
3850
3851 case $cpu in
3852 i[345]86|pentium)
3853 cpuflags="-march=$cpu"
3854 disable i686
3855 disable mmx
3856 ;;
3857 # targets that do NOT support nopl and conditional mov (cmov)
3858 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3859 cpuflags="-march=$cpu"
3860 disable i686
3861 ;;
3862 # targets that do support nopl and conditional mov (cmov)
3863 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3864 cpuflags="-march=$cpu"
3865 enable i686
3866 enable fast_cmov
3867 ;;
3868 # targets that do support conditional mov but on which it's slow
3869 pentium4|pentium4m|prescott|nocona)
3870 cpuflags="-march=$cpu"
3871 enable i686
3872 disable fast_cmov
3873 ;;
3874 esac
3875
3876 fi
3877
3878 if [ "$cpu" != generic ]; then
3879 add_cflags $cpuflags
3880 add_asflags $cpuflags
3881 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3882 fi
3883
3884 # compiler sanity check
3885 check_exec <<EOF
3886 int main(void){ return 0; }
3887 EOF
3888 if test "$?" != 0; then
3889 echo "$cc is unable to create an executable file."
3890 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3891 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3892 echo "Only do this if you know what cross compiling means."
3893 fi
3894 die "C compiler test failed."
3895 fi
3896
3897 add_cppflags -D_ISOC99_SOURCE
3898
3899 # some compilers silently accept -std=c11, so we also need to check that the
3900 # version macro is defined properly
3901 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3902 add_cflags -std=c11 ||
3903 check_cflags -std=c99
3904
3905 check_cppflags -D_FILE_OFFSET_BITS=64
3906 check_cppflags -D_LARGEFILE_SOURCE
3907
3908 add_host_cppflags -D_ISOC99_SOURCE
3909 check_host_cflags -std=c99
3910 check_host_cflags -Wall
3911 check_host_cflags $host_cflags_speed
3912
3913 check_64bit(){
3914 arch32=$1
3915 arch64=$2
3916 expr=$3
3917 check_code cc "" "int test[2*($expr) - 1]" &&
3918 subarch=$arch64 || subarch=$arch32
3919 }
3920
3921 case "$arch" in
3922 aarch64|alpha|ia64)
3923 spic=$shared
3924 ;;
3925 mips)
3926 check_64bit mips mips64 '_MIPS_SIM > 1'
3927 spic=$shared
3928 ;;
3929 parisc)
3930 check_64bit parisc parisc64 'sizeof(void *) > 4'
3931 spic=$shared
3932 ;;
3933 ppc)
3934 check_64bit ppc ppc64 'sizeof(void *) > 4'
3935 spic=$shared
3936 ;;
3937 s390)
3938 check_64bit s390 s390x 'sizeof(void *) > 4'
3939 spic=$shared
3940 ;;
3941 sparc)
3942 check_64bit sparc sparc64 'sizeof(void *) > 4'
3943 spic=$shared
3944 ;;
3945 x86)
3946 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3947 if test "$subarch" = "x86_64"; then
3948 spic=$shared
3949 fi
3950 ;;
3951 esac
3952
3953 enable $subarch
3954 enabled spic && enable_weak pic
3955
3956 enabled x86_64 && objformat=elf64 || objformat="elf32"
3957
3958 # OS specific
3959 case $target_os in
3960 aix)
3961 SHFLAGS=-shared
3962 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3963 enabled shared && add_ldflags -Wl,-brtl
3964 ;;
3965 android)
3966 disable symver
3967 enable section_data_rel_ro
3968 SLIB_INSTALL_NAME='$(SLIBNAME)'
3969 SLIB_INSTALL_LINKS=
3970 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3971 ;;
3972 haiku)
3973 prefix_default="/boot/common"
3974 network_extralibs="-lnetwork"
3975 host_extralibs=
3976 ;;
3977 sunos)
3978 SHFLAGS='-shared -Wl,-h,$$(@F)'
3979 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3980 network_extralibs="-lsocket -lnsl"
3981 # When using suncc to build, the Solaris linker will mark
3982 # an executable with each instruction set encountered by
3983 # the Solaris assembler. As our libraries contain their own
3984 # guards for processor-specific code, instead suppress
3985 # generation of the HWCAPS ELF section on Solaris x86 only.
3986 enabled_all suncc x86 &&
3987 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3988 add_ldflags -Wl,-M,mapfile
3989 nm_default='nm -P -g'
3990 version_script='-M'
3991 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3992 ;;
3993 netbsd)
3994 disable symver
3995 oss_indev_extralibs="-lossaudio"
3996 oss_outdev_extralibs="-lossaudio"
3997 ;;
3998 openbsd|bitrig)
3999 disable symver
4000 SHFLAGS='-shared'
4001 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4002 SLIB_INSTALL_LINKS=
4003 oss_indev_extralibs="-lossaudio"
4004 oss_outdev_extralibs="-lossaudio"
4005 ;;
4006 dragonfly)
4007 disable symver
4008 ;;
4009 freebsd)
4010 ;;
4011 bsd/os)
4012 add_extralibs -lpoll -lgnugetopt
4013 ;;
4014 darwin)
4015 enabled ppc && add_asflags -force_cpusubtype_ALL
4016 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4017 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4018 add_ldflags -Wl,-dynamic,-search_paths_first
4019 check_cflags -Werror=partial-availability
4020 SLIBSUF=".dylib"
4021 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
4022 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
4023 enabled x86_64 && objformat="macho64" || objformat="macho32"
4024 enabled_any pic shared ||
4025 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4026 check_header dispatch/dispatch.h &&
4027 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4028 if test -n "$sysroot"; then
4029 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4030 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
4031 fi
4032 ;;
4033 msys*)
4034 die "Native MSYS builds are discouraged, please use the MINGW environment."
4035 ;;
4036 mingw32*|mingw64*)
4037 target_os=mingw32
4038 LIBTARGET=i386
4039 if enabled x86_64; then
4040 LIBTARGET="i386:x86-64"
4041 fi
4042 if enabled shared; then
4043 # Cannot build both shared and static libs when using dllexport.
4044 disable static
4045 fi
4046 check_ldflags -Wl,--nxcompat
4047 check_ldflags -Wl,--dynamicbase
4048 shlibdir_default="$bindir_default"
4049 SLIBPREF=""
4050 SLIBSUF=".dll"
4051 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4052 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4053 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4054 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4055 SLIB_INSTALL_LINKS=
4056 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4057 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4058 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4059 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4060 enabled x86_64 && objformat="win64" || objformat="win32"
4061 dlltool="${cross_prefix}dlltool"
4062 ranlib=:
4063 enable dos_paths
4064 ;;
4065 win32|win64)
4066 disable symver
4067 if enabled shared; then
4068 # Link to the import library instead of the normal static library
4069 # for shared libs.
4070 LD_LIB='%.lib'
4071 # Cannot build both shared and static libs with MSVC or icl.
4072 disable static
4073 fi
4074 shlibdir_default="$bindir_default"
4075 SLIBPREF=""
4076 SLIBSUF=".dll"
4077 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4078 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4079 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4080 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4081 SLIB_INSTALL_LINKS=
4082 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4083 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4084 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4085 enabled x86_64 && objformat="win64" || objformat="win32"
4086 ranlib=:
4087 enable dos_paths
4088 ;;
4089 cygwin*)
4090 target_os=cygwin
4091 shlibdir_default="$bindir_default"
4092 SLIBPREF="cyg"
4093 SLIBSUF=".dll"
4094 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4095 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4096 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4097 SLIB_INSTALL_LINKS=
4098 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4099 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4100 enabled x86_64 && objformat="win64" || objformat="win32"
4101 enable dos_paths
4102 ;;
4103 *-dos|freedos|opendos)
4104 network_extralibs="-lsocket"
4105 objformat="coff"
4106 enable dos_paths
4107 add_cppflags -U__STRICT_ANSI__
4108 ;;
4109 linux)
4110 enable dv1394
4111 enable section_data_rel_ro
4112 ;;
4113 irix*)
4114 target_os=irix
4115 ranlib="echo ignoring ranlib"
4116 ;;
4117 os/2*)
4118 ln_s="cp -f"
4119 objformat="aout"
4120 add_cppflags -D_GNU_SOURCE
4121 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4122 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4123 LIBSUF="_s.a"
4124 SLIBPREF=""
4125 SLIBSUF=".dll"
4126 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4127 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4128 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4129 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4130 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4131 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4132 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4133 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4134 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4135 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4136 enable dos_paths
4137 ;;
4138 gnu/kfreebsd)
4139 add_cppflags -D_BSD_SOURCE
4140 ;;
4141 gnu)
4142 ;;
4143 qnx)
4144 add_cppflags -D_QNX_SOURCE
4145 network_extralibs="-lsocket"
4146 ;;
4147 symbian)
4148 SLIBSUF=".dll"
4149 enable dos_paths
4150 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4151 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4152 add_ldflags -Wl,--target1-abs,--no-undefined \
4153 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4154 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4155 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4156 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4157 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4158 ;;
4159 osf1)
4160 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4161 ;;
4162 minix)
4163 ;;
4164 none)
4165 ;;
4166 *)
4167 die "Unknown OS '$target_os'."
4168 ;;
4169 esac
4170
4171 # determine libc flavour
4172
4173 probe_libc(){
4174 pfx=$1
4175 pfx_no_=${pfx%_}
4176 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4177 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4178 eval ${pfx}libc_type=uclibc
4179 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4180 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4181 eval ${pfx}libc_type=glibc
4182 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4183 # MinGW headers can be installed on Cygwin, so check for newlib first.
4184 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4185 eval ${pfx}libc_type=newlib
4186 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4187 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4188 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4189 eval ${pfx}libc_type=mingw64
4190 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4191 eval test \$${pfx_no_}cc_type = "gcc" &&
4192 add_${pfx}cppflags -D__printf__=__gnu_printf__
4193 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4194 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4195 eval ${pfx}libc_type=mingw32
4196 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4197 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4198 die "ERROR: MinGW32 runtime version must be >= 3.15."
4199 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4200 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4201 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4202 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4203 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4204 eval test \$${pfx_no_}cc_type = "gcc" &&
4205 add_${pfx}cppflags -D__printf__=__gnu_printf__
4206 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4207 eval ${pfx}libc_type=msvcrt
4208 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4209 if [ "$pfx" = host_ ]; then
4210 add_host_cppflags -Dsnprintf=_snprintf
4211 else
4212 add_compat strtod.o strtod=avpriv_strtod
4213 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4214 _snprintf=avpriv_snprintf \
4215 vsnprintf=avpriv_vsnprintf
4216 fi
4217 fi
4218 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4219 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4220 # 0x601 by default unless something else is set by the user.
4221 # This can easily lead to us detecting functions only present
4222 # in such new versions and producing binaries requiring windows 7.0.
4223 # Therefore explicitly set the default to XP unless the user has
4224 # set something else on the command line.
4225 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4226 # family. For these cases, configure is free to use any functions
4227 # found in the SDK headers by default. (Alternatively, we could force
4228 # _WIN32_WINNT to 0x0602 in that case.)
4229 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4230 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4231 #ifdef WINAPI_FAMILY
4232 #include <winapifamily.h>
4233 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4234 #error not desktop
4235 #endif
4236 #endif
4237 EOF
4238 if [ "$pfx" = "" ]; then
4239 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4240 fi
4241 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4242 eval ${pfx}libc_type=klibc
4243 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4244 eval ${pfx}libc_type=bionic
4245 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4246 eval ${pfx}libc_type=solaris
4247 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4248 else
4249 eval ${pfx}libc_type=default
4250 add_${pfx}cppflags -D_DEFAULT_SOURCE
4251 fi
4252 }
4253
4254 probe_libc
4255 test -n "$libc_type" && enable libc_$libc_type
4256 probe_libc host_
4257 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4258
4259 # hacks for compiler/libc/os combinations
4260
4261 case $libc_type in
4262 bionic)
4263 add_compat strtod.o strtod=avpriv_strtod
4264 ;;
4265 glibc)
4266 if enabled tms470; then
4267 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4268 add_cppflags -D__USER_LABEL_PREFIX__=
4269 add_cppflags -D__builtin_memset=memset
4270 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4271 add_cflags -pds=48 # incompatible redefinition of macro
4272 elif enabled ccc; then
4273 add_ldflags -Wl,-z,now # calls to libots crash without this
4274 fi
4275 ;;
4276 esac
4277
4278 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4279 add_cppflags '-I\$(SRC_PATH)/compat/float'
4280
4281 esc(){
4282 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4283 }
4284
4285 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4286
4287 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4288
4289 set_default $PATHS_LIST
4290 set_default nm
4291
4292 # we need to build at least one lib type
4293 if ! enabled_any static shared; then
4294 cat <<EOF
4295 At least one library type must be built.
4296 Specify --enable-static to build the static libraries or --enable-shared to
4297 build the shared libraries as well. To only build the shared libraries specify
4298 --disable-static in addition to --enable-shared.
4299 EOF
4300 exit 1
4301 fi
4302
4303 disabled optimizations || check_cflags -fomit-frame-pointer
4304
4305 enable_weak_pic() {
4306 disabled pic && return
4307 enable pic
4308 add_cppflags -DPIC
4309 case "$target_os" in
4310 mingw*|cygwin*)
4311 ;;
4312 *)
4313 add_cflags -fPIC
4314 ;;
4315 esac
4316 add_asflags -fPIC
4317 }
4318
4319 enabled pic && enable_weak_pic
4320
4321 check_cc <<EOF || die "Symbol mangling check failed."
4322 int ff_extern;
4323 EOF
4324 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4325 extern_prefix=${sym%%ff_extern*}
4326
4327 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4328
4329 _restrict=
4330 for restrict_keyword in restrict __restrict__ __restrict; do
4331 check_cc <<EOF && _restrict=$restrict_keyword && break
4332 void foo(char * $restrict_keyword p);
4333 EOF
4334 done
4335
4336 check_cc <<EOF && enable pragma_deprecated
4337 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4338 EOF
4339
4340 check_cc <<EOF && enable attribute_packed
4341 struct { int x; } __attribute__((packed)) x;
4342 EOF
4343
4344 check_cc <<EOF && enable attribute_may_alias
4345 union { int x; } __attribute__((may_alias)) x;
4346 EOF
4347
4348 check_cc <<EOF || die "endian test failed"
4349 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4350 EOF
4351 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4352
4353 check_gas() {
4354 log "check_gas using '$as' as AS"
4355 # :vararg is used on aarch64, arm and ppc altivec
4356 check_as <<EOF || return 1
4357 .macro m n, y:vararg=0
4358 \n: .int \y
4359 .endm
4360 m x
4361 EOF
4362 # .altmacro is only used in arm asm
4363 ! enabled arm || check_as <<EOF || return 1
4364 .altmacro
4365 EOF
4366 enable gnu_as
4367 return 0
4368 }
4369
4370 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4371 nogas=:
4372 enabled_any arm aarch64 && nogas=die
4373 enabled_all ppc altivec && nogas=warn
4374 as_noop=-v
4375
4376 case $as_type in
4377 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4378 gcc) gaspp_as_type=gas ;;
4379 *) gaspp_as_type=$as_type ;;
4380 esac
4381
4382 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4383
4384 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4385 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4386
4387 if ! check_gas ; then
4388 as=${gas:=$as}
4389 check_gas || \
4390 $nogas