d3d11va: Check WINAPI_FAMILY instead of HAVE_LOADLIBRARY
[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-d3d11va Microsoft Direct3D 11 video acceleration [auto]
241 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
242 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
243 --enable-libnpp Nvidia CUDA processing
244 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
245 --enable-nvenc Nvidia video encoding
246 --enable-omx OpenMAX IL
247 --enable-omx-rpi OpenMAX IL for Raspberry Pi
248 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
249 --enable-vda Apple Video Decode Acceleration [auto]
250 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251
252 Toolchain options:
253 --arch=ARCH select architecture [$arch]
254 --cpu=CPU select the minimum required CPU (affects
255 instruction selection, may crash on older CPUs)
256 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
257 --enable-cross-compile assume a cross-compiler is used
258 --sysroot=PATH root of cross-build tree
259 --sysinclude=PATH location of cross-build system headers
260 --target-os=OS compiler targets OS [$target_os]
261 --target-exec=CMD command to run executables on target
262 --target-path=DIR path to view of build directory on target
263 --target-samples=DIR path to samples directory on target
264 --toolchain=NAME set tool defaults according to NAME
265 --nm=NM use nm tool
266 --ar=AR use archive tool AR [$ar_default]
267 --as=AS use assembler AS [$as_default]
268 --cc=CC use C compiler CC [$cc_default]
269 --objcc=OCC use ObjC compiler OCC [$cc_default]
270 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
271 --ld=LD use linker LD
272 --x86asmexe=X86ASM use x86 assembler X86ASM
273 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
274 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
275 --host-cc=HOSTCC use host C compiler HOSTCC
276 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
277 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
278 --host-ld=HOSTLD use host linker HOSTLD
279 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
280 --host-libs=HLIBS use libs HLIBS when linking for host
281 --host-os=OS compiler host OS [$target_os]
282 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
283 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
284 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
285 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
286 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
287 --extra-libs=ELIBS add ELIBS [$ELIBS]
288 --extra-version=STRING version string suffix []
289 --optflags=OPTFLAGS override optimization-related compiler flags
290 --enable-pic build position-independent code
291 --enable-thumb compile for Thumb instruction set
292 --enable-lto use link-time optimization
293 --env="ENV=override" override the environment variables
294
295 Advanced options (experts only):
296 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
297 --custom-allocator=NAME use a supported custom allocator
298 --disable-symver disable symbol versioning
299 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
300 --disable-safe-bitstream-reader
301 disable buffer boundary checking in bitreaders
302 (faster, but may crash)
303 --enable-sram allow use of on-chip SRAM
304
305 Optimization options (experts only):
306 --disable-asm disable all assembly optimizations
307 --disable-altivec disable AltiVec optimizations
308 --disable-vsx disable VSX optimizations
309 --disable-power8 disable POWER8 optimizations
310 --disable-amd3dnow disable 3DNow! optimizations
311 --disable-amd3dnowext disable 3DNow! extended optimizations
312 --disable-mmx disable MMX optimizations
313 --disable-mmxext disable MMXEXT optimizations
314 --disable-sse disable SSE optimizations
315 --disable-sse2 disable SSE2 optimizations
316 --disable-sse3 disable SSE3 optimizations
317 --disable-ssse3 disable SSSE3 optimizations
318 --disable-sse4 disable SSE4 optimizations
319 --disable-sse42 disable SSE4.2 optimizations
320 --disable-avx disable AVX optimizations
321 --disable-xop disable XOP optimizations
322 --disable-fma3 disable FMA3 optimizations
323 --disable-fma4 disable FMA4 optimizations
324 --disable-avx2 disable AVX2 optimizations
325 --disable-armv5te disable armv5te optimizations
326 --disable-armv6 disable armv6 optimizations
327 --disable-armv6t2 disable armv6t2 optimizations
328 --disable-vfp disable VFP optimizations
329 --disable-neon disable NEON optimizations
330 --disable-inline-asm disable use of inline assembly
331 --disable-x86asm disable use of standalone x86 assembly
332
333 Developer options (useful when working on Libav itself):
334 --disable-debug disable debugging symbols
335 --enable-debug=LEVEL set the debug level [$debuglevel]
336 --disable-optimizations disable compiler optimizations
337 --enable-extra-warnings enable more compiler warnings
338 --samples=PATH location of test samples for FATE, if not set use
339 \$LIBAV_SAMPLES at make invocation time.
340 --enable-neon-clobber-test check NEON registers for clobbering (should be
341 used only for debugging purposes)
342 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
343 should be used only for debugging purposes)
344 --enable-random randomly enable/disable components
345 --disable-random
346 --enable-random=LIST randomly enable/disable specific components or
347 --disable-random=LIST component groups. LIST is a comma-separated list
348 of NAME[:PROB] entries where NAME is a component
349 (group) and PROB the probability associated with
350 NAME (default 0.5).
351 --random-seed=VALUE seed value for --enable/disable-random
352 --disable-valgrind-backtrace do not print a backtrace under Valgrind
353 (only applies to --disable-optimizations builds)
354 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
355 in the name) of tests whose result is ignored
356
357 NOTE: Object files are built at the place where configure is launched.
358 EOF
359 exit 0
360 }
361
362 quotes='""'
363
364 log(){
365 echo "$@" >> $logfile
366 }
367
368 log_file(){
369 log BEGIN $1
370 i=1
371 while read line; do
372 printf '%5s %s\n' "${i}" "${line}"
373 i=$(($i+1))
374 done < $1 >> $logfile
375 log END $1
376 }
377
378 echolog(){
379 log "$@"
380 echo "$@"
381 }
382
383 warn(){
384 log "WARNING: $*"
385 WARNINGS="${WARNINGS}WARNING: $*\n"
386 }
387
388 die(){
389 echolog "$@"
390 cat <<EOF
391
392 If you think configure made a mistake, make sure you are using the latest
393 version from Git. If the latest version fails, report the problem to the
394 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
395 EOF
396 if disabled logging; then
397 cat <<EOF
398 Rerun configure with logging enabled (do not use --disable-logging), and
399 include the log this produces with your report.
400 EOF
401 else
402 cat <<EOF
403 Include the log file "$logfile" produced by configure as this will help
404 solving the problem.
405 EOF
406 fi
407 exit 1
408 }
409
410 # Avoid locale weirdness, besides we really just want to translate ASCII.
411 toupper(){
412 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
413 }
414
415 tolower(){
416 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
417 }
418
419 c_escape(){
420 echo "$*" | sed 's/["\\]/\\\0/g'
421 }
422
423 sh_quote(){
424 v=$(echo "$1" | sed "s/'/'\\\\''/g")
425 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
426 echo "$v"
427 }
428
429 cleanws(){
430 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
431 }
432
433 filter(){
434 pat=$1
435 shift
436 for v; do
437 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
438 done
439 }
440
441 filter_out(){
442 pat=$1
443 shift
444 for v; do
445 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
446 done
447 }
448
449 map(){
450 m=$1
451 shift
452 for v; do eval $m; done
453 }
454
455 add_suffix(){
456 suffix=$1
457 shift
458 for v; do echo ${v}${suffix}; done
459 }
460
461 set_all(){
462 value=$1
463 shift
464 for var in $*; do
465 eval $var=$value
466 done
467 }
468
469 set_weak(){
470 value=$1
471 shift
472 for var; do
473 eval : \${$var:=$value}
474 done
475 }
476
477 sanitize_var_name(){
478 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
479 }
480
481 set_sanitized(){
482 var=$1
483 shift
484 eval $(sanitize_var_name "$var")='$*'
485 }
486
487 get_sanitized(){
488 eval echo \$$(sanitize_var_name "$1")
489 }
490
491 pushvar(){
492 for pvar in $*; do
493 eval level=\${${pvar}_level:=0}
494 eval ${pvar}_${level}="\$$pvar"
495 eval ${pvar}_level=$(($level+1))
496 done
497 }
498
499 popvar(){
500 for pvar in $*; do
501 eval level=\${${pvar}_level:-0}
502 test $level = 0 && continue
503 eval level=$(($level-1))
504 eval $pvar="\${${pvar}_${level}}"
505 eval ${pvar}_level=$level
506 eval unset ${pvar}_${level}
507 done
508 }
509
510 enable(){
511 set_all yes $*
512 }
513
514 disable(){
515 set_all no $*
516 }
517
518 enable_weak(){
519 set_weak yes $*
520 }
521
522 disable_weak(){
523 set_weak no $*
524 }
525
526 enable_sanitized(){
527 for var; do
528 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529 done
530 }
531
532 disable_sanitized(){
533 for var; do
534 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
535 done
536 }
537
538 do_enable_deep(){
539 for var; do
540 enabled $var && continue
541 eval sel="\$${var}_select"
542 eval sgs="\$${var}_suggest"
543 pushvar var sgs
544 enable_deep $sel
545 popvar sgs
546 enable_deep_weak $sgs
547 popvar var
548 done
549 }
550
551 enable_deep(){
552 do_enable_deep $*
553 enable $*
554 }
555
556 enable_deep_weak(){
557 for var; do
558 disabled $var && continue
559 pushvar var
560 do_enable_deep $var
561 popvar var
562 enable_weak $var
563 done
564 }
565
566 enabled(){
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xyes"
569 }
570
571 disabled(){
572 test "${1#!}" = "$1" && op== || op=!=
573 eval test "x\$${1#!}" $op "xno"
574 }
575
576 enabled_all(){
577 for opt; do
578 enabled $opt || return 1
579 done
580 }
581
582 disabled_all(){
583 for opt; do
584 disabled $opt || return 1
585 done
586 }
587
588 enabled_any(){
589 for opt; do
590 enabled $opt && return 0
591 done
592 }
593
594 disabled_any(){
595 for opt; do
596 disabled $opt && return 0
597 done
598 return 1
599 }
600
601 set_default(){
602 for opt; do
603 eval : \${$opt:=\$${opt}_default}
604 done
605 }
606
607 is_in(){
608 value=$1
609 shift
610 for var in $*; do
611 [ $var = $value ] && return 0
612 done
613 return 1
614 }
615
616 check_deps(){
617 for cfg; do
618 enabled ${cfg}_checking && die "Circular dependency for $cfg."
619 disabled ${cfg}_checking && continue
620 enable ${cfg}_checking
621
622 eval dep_all="\$${cfg}_deps"
623 eval dep_any="\$${cfg}_deps_any"
624 eval dep_con="\$${cfg}_conflict"
625 eval dep_sel="\$${cfg}_select"
626 eval dep_sgs="\$${cfg}_suggest"
627 eval dep_ifa="\$${cfg}_if"
628 eval dep_ifn="\$${cfg}_if_any"
629
630 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
631 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
632 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
633
634 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
635 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
636 enabled_all $dep_all || disable $cfg
637 enabled_any $dep_any || disable $cfg
638 disabled_all $dep_con || disable $cfg
639 disabled_any $dep_sel && disable $cfg
640
641 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
642
643 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
644 # filter out library deps, these do not belong in extralibs
645 is_in $dep $LIBRARY_LIST && continue
646 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
647 done
648
649 disable ${cfg}_checking
650 done
651 }
652
653 print_config(){
654 pfx=$1
655 files=$2
656 shift 2
657 map 'eval echo "$v \${$v:-no}"' "$@" |
658 awk "BEGIN { split(\"$files\", files) }
659 {
660 c = \"$pfx\" toupper(\$1);
661 v = \$2;
662 sub(/yes/, 1, v);
663 sub(/no/, 0, v);
664 for (f in files) {
665 file = files[f];
666 if (file ~ /\\.h\$/) {
667 printf(\"#define %s %d\\n\", c, v) >>file;
668 } else if (file ~ /\\.asm\$/) {
669 printf(\"%%define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.mak\$/) {
671 n = -v ? \"\" : \"!\";
672 printf(\"%s%s=yes\\n\", n, c) >>file;
673 }
674 }
675 }"
676 }
677
678 print_enabled(){
679 suf=$1
680 shift
681 for v; do
682 enabled $v && printf "%s\n" ${v%$suf}
683 done
684 }
685
686 append(){
687 var=$1
688 shift
689 eval "$var=\"\$$var $*\""
690 }
691
692 prepend(){
693 var=$1
694 shift
695 eval "$var=\"$* \$$var\""
696 }
697
698 unique(){
699 var=$1
700 uniq_list=""
701 for tok in $(eval echo \$$var); do
702 uniq_list="$(filter_out $tok $uniq_list) $tok"
703 done
704 eval "$var=\"${uniq_list}\""
705 }
706
707 resolve(){
708 var=$1
709 tmpvar=
710 for entry in $(eval echo \$$var); do
711 tmpvar="$tmpvar $(eval echo \$${entry})"
712 done
713 eval "$var=\"${tmpvar}\""
714 }
715
716 add_cppflags(){
717 append CPPFLAGS "$@"
718 }
719
720 add_cflags(){
721 append CFLAGS $($cflags_filter "$@")
722 }
723
724 add_cflags_headers(){
725 append CFLAGS_HEADERS $($cflags_filter "$@")
726 }
727
728 add_asflags(){
729 append ASFLAGS $($asflags_filter "$@")
730 }
731
732 add_objcflags(){
733 append OBJCFLAGS $($objcflags_filter "$@")
734 }
735
736 add_ldflags(){
737 append LDFLAGS $($ldflags_filter "$@")
738 }
739
740 add_ldexeflags(){
741 append LDEXEFLAGS $($ldflags_filter "$@")
742 }
743
744 add_ldsoflags(){
745 append LDSOFLAGS $($ldflags_filter "$@")
746 }
747
748 add_stripflags(){
749 append STRIPFLAGS "$@"
750 }
751
752 add_extralibs(){
753 prepend extralibs $($ldflags_filter "$@")
754 }
755
756 add_host_cppflags(){
757 append host_cppflags "$@"
758 }
759
760 add_host_cflags(){
761 append host_cflags $($host_cflags_filter "$@")
762 }
763
764 add_host_ldflags(){
765 append host_ldflags $($host_ldflags_filter "$@")
766 }
767
768 add_compat(){
769 append compat_objs $1
770 shift
771 map 'add_cppflags -D$v' "$@"
772 }
773
774 check_cmd(){
775 log "$@"
776 "$@" >> $logfile 2>&1
777 }
778
779 cc_o(){
780 eval printf '%s\\n' $CC_O
781 }
782
783 cc_e(){
784 eval printf '%s\\n' $CC_E
785 }
786
787 check_cc(){
788 log check_cc "$@"
789 cat > $TMPC
790 log_file $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
792 }
793
794 check_objcc(){
795 log check_objcc "$@"
796 cat > $TMPC
797 log_file $TMPC
798 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
799 }
800
801 check_cpp(){
802 log check_cpp "$@"
803 cat > $TMPC
804 log_file $TMPC
805 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
806 }
807
808 as_o(){
809 eval printf '%s\\n' $AS_O
810 }
811
812 check_as(){
813 log check_as "$@"
814 cat > $TMPS
815 log_file $TMPS
816 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
817 }
818
819 check_inline_asm(){
820 log check_inline_asm "$@"
821 name="$1"
822 code="$2"
823 shift 2
824 disable $name
825 check_cc "$@" <<EOF && enable $name
826 void foo(void){ __asm__ volatile($code); }
827 EOF
828 }
829
830 check_insn(){
831 log check_insn "$@"
832 check_inline_asm ${1}_inline "\"$2\""
833 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
834 }
835
836 check_x86asm(){
837 log check_x86asm "$@"
838 echo "$1" > $TMPS
839 log_file $TMPS
840 shift 1
841 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
842 }
843
844 ld_o(){
845 eval printf '%s\\n' $LD_O
846 }
847
848 check_ld(){
849 log check_ld "$@"
850 flags=$(filter_out '-l*' "$@")
851 libs=$(filter '-l*' "$@")
852 check_cc $($cflags_filter $flags) || return
853 flags=$($ldflags_filter $flags)
854 libs=$($ldflags_filter $libs)
855 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
856 }
857
858 print_include(){
859 hdr=$1
860 test "${hdr%.h}" = "${hdr}" &&
861 echo "#include $hdr" ||
862 echo "#include <$hdr>"
863 }
864
865 check_code(){
866 log check_code "$@"
867 check=$1
868 headers=$2
869 code=$3
870 shift 3
871 {
872 for hdr in $headers; do
873 print_include $hdr
874 done
875 echo "int main(void) { $code; return 0; }"
876 } | check_$check "$@"
877 }
878
879 check_cppflags(){
880 log check_cppflags "$@"
881 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
882 #include <stdlib.h>;
883 EOF
884 }
885
886 test_cflags(){
887 log test_cflags "$@"
888 set -- $($cflags_filter "$@")
889 check_cc "$@" <<EOF
890 int x;
891 EOF
892 }
893
894 check_cflags(){
895 log check_cflags "$@"
896 test_cflags "$@" && add_cflags "$@"
897 }
898
899 test_objcflags(){
900 log test_objcflags "$@"
901 set -- $($objcflags_filter "$@")
902 check_objcc "$@" <<EOF
903 int x;
904 EOF
905 }
906
907 check_objcflags(){
908 log check_objcflags "$@"
909 test_objcflags "$@" && add_objcflags "$@"
910 }
911
912 test_ldflags(){
913 log test_ldflags "$@"
914 check_ld "$@" <<EOF
915 int main(void){ return 0; }
916 EOF
917 }
918
919 check_ldflags(){
920 log check_ldflags "$@"
921 test_ldflags "$@" && add_ldflags "$@"
922 }
923
924 test_stripflags(){
925 log test_stripflags "$@"
926 # call check_cc to get a fresh TMPO
927 check_cc <<EOF
928 int main(void) { return 0; }
929 EOF
930 check_cmd $strip $STRIPFLAGS "$@" $TMPO
931 }
932
933 check_stripflags(){
934 log check_stripflags "$@"
935 test_stripflags "$@" && add_stripflags "$@"
936 }
937
938 check_header(){
939 log check_header "$@"
940 header=$1
941 shift
942 disable_sanitized $header
943 check_cpp "$@" <<EOF && enable_sanitized $header
944 #include <$header>
945 int x;
946 EOF
947 }
948
949 check_func(){
950 log check_func "$@"
951 func=$1
952 shift
953 disable $func
954 check_ld "$@" <<EOF && enable $func
955 extern int $func();
956 int main(void){ $func(); }
957 EOF
958 }
959
960 check_mathfunc(){
961 log check_mathfunc "$@"
962 func=$1
963 narg=$2
964 shift 2
965 test $narg = 2 && args="f, g" || args="f"
966 disable $func
967 check_ld "$@" <<EOF && enable $func
968 #include <math.h>
969 float foo(float f, float g) { return $func($args); }
970 int main(void){ return 0; }
971 EOF
972 }
973
974 check_func_headers(){
975 log check_func_headers "$@"
976 headers=$1
977 funcs=$2
978 shift 2
979 {
980 for hdr in $headers; do
981 print_include $hdr
982 done
983 for func in $funcs; do
984 echo "long check_$func(void) { return (long) $func; }"
985 done
986 echo "int main(void) { return 0; }"
987 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
988 }
989
990 check_cpp_condition(){
991 log check_cpp_condition "$@"
992 header=$1
993 condition=$2
994 shift 2
995 check_cpp "$@" <<EOF
996 #include <$header>
997 #if !($condition)
998 #error "unsatisfied condition: $condition"
999 #endif
1000 EOF
1001 }
1002
1003 test_cflags_cpp(){
1004 log test_cflags_cpp "$@"
1005 flags=$1
1006 condition=$2
1007 shift 2
1008 set -- $($cflags_filter "$flags")
1009 check_cpp "$@" <<EOF
1010 #if !($condition)
1011 #error "unsatisfied condition: $condition"
1012 #endif
1013 EOF
1014 }
1015
1016 check_lib(){
1017 log check_lib "$@"
1018 name="$1"
1019 headers="$2"
1020 funcs="$3"
1021 shift 3
1022 disable $name
1023 check_func_headers "$headers" "$funcs" "$@" &&
1024 enable $name && eval ${name}_extralibs="\$@"
1025 }
1026
1027 check_pkg_config(){
1028 log check_pkg_config "$@"
1029 name="$1"
1030 pkg_version="$2"
1031 pkg="${2%% *}"
1032 headers="$3"
1033 funcs="$4"
1034 shift 4
1035 disable $name
1036 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1037 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1038 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1039 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1040 enable $name &&
1041 add_cflags "$pkg_cflags" &&
1042 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1043 }
1044
1045 check_exec(){
1046 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1047 }
1048
1049 check_exec_crash(){
1050 log check_exec_crash "$@"
1051 code=$(cat)
1052
1053 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1054 # are safe but may not be available everywhere. Thus we use
1055 # raise(SIGTERM) instead. The check is run in a subshell so we
1056 # can redirect the "Terminated" message from the shell. SIGBUS
1057 # is not defined by standard C so it is used conditionally.
1058
1059 (check_exec "$@") >> $logfile 2>&1 <<EOF
1060 #include <signal.h>
1061 static void sighandler(int sig){
1062 raise(SIGTERM);
1063 }
1064 int foo(void){
1065 $code
1066 }
1067 int (*func_ptr)(void) = foo;
1068 int main(void){
1069 signal(SIGILL, sighandler);
1070 signal(SIGFPE, sighandler);
1071 signal(SIGSEGV, sighandler);
1072 #ifdef SIGBUS
1073 signal(SIGBUS, sighandler);
1074 #endif
1075 return func_ptr();
1076 }
1077 EOF
1078 }
1079
1080 check_type(){
1081 log check_type "$@"
1082 headers=$1
1083 type=$2
1084 shift 2
1085 disable_sanitized "$type"
1086 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1087 }
1088
1089 check_struct(){
1090 log check_struct "$@"
1091 headers=$1
1092 struct=$2
1093 member=$3
1094 shift 3
1095 disable_sanitized "${struct}_${member}"
1096 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1097 enable_sanitized "${struct}_${member}"
1098 }
1099
1100 check_builtin(){
1101 log check_builtin "$@"
1102 name=$1
1103 headers=$2
1104 builtin=$3
1105 shift 3
1106 disable "$name"
1107 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1108 }
1109
1110 check_compile_assert(){
1111 log check_compile_assert "$@"
1112 name=$1
1113 headers=$2
1114 condition=$3
1115 shift 3
1116 disable "$name"
1117 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1118 }
1119
1120 require(){
1121 log require "$@"
1122 name_version="$1"
1123 name="${1%% *}"
1124 headers="$2"
1125 func="$3"
1126 shift 3
1127 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1128 }
1129
1130 require_header(){
1131 log require "$@"
1132 header="$1"
1133 shift
1134 check_header "$header" "$@" || die "ERROR: $header not found"
1135 }
1136
1137 require_cpp_condition(){
1138 log require "$@"
1139 header="$1"
1140 condition="$2"
1141 shift 2
1142 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1143 }
1144
1145 require_pkg_config(){
1146 log require_pkg_config "$@"
1147 pkg_version="$2"
1148 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1149 }
1150
1151 hostcc_e(){
1152 eval printf '%s\\n' $HOSTCC_E
1153 }
1154
1155 hostcc_o(){
1156 eval printf '%s\\n' $HOSTCC_O
1157 }
1158
1159 check_host_cc(){
1160 log check_host_cc "$@"
1161 cat > $TMPC
1162 log_file $TMPC
1163 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1164 }
1165
1166 check_host_cpp(){
1167 log check_host_cpp "$@"
1168 cat > $TMPC
1169 log_file $TMPC
1170 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1171 }
1172
1173 check_host_cppflags(){
1174 log check_host_cppflags "$@"
1175 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1176 #include <stdlib.h>;
1177 EOF
1178 }
1179
1180 check_host_cflags(){
1181 log check_host_cflags "$@"
1182 set -- $($host_cflags_filter "$@")
1183 check_host_cc "$@" <<EOF && append host_cflags "$@"
1184 int x;
1185 EOF
1186 }
1187
1188 check_host_cpp_condition(){
1189 log check_host_cpp_condition "$@"
1190 header=$1
1191 condition=$2
1192 shift 2
1193 check_host_cpp "$@" <<EOF
1194 #include <$header>
1195 #if !($condition)
1196 #error "unsatisfied condition: $condition"
1197 #endif
1198 EOF
1199 }
1200
1201 apply(){
1202 file=$1
1203 shift
1204 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1205 }
1206
1207 cp_if_changed(){
1208 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1209 mkdir -p "$(dirname $2)"
1210 cp -f "$1" "$2"
1211 }
1212
1213 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1214 # system-dependent things.
1215
1216 AVCODEC_COMPONENTS="
1217 bsfs
1218 decoders
1219 encoders
1220 hwaccels
1221 parsers
1222 "
1223
1224 AVDEVICE_COMPONENTS="
1225 indevs
1226 outdevs
1227 "
1228 AVFILTER_COMPONENTS="
1229 filters
1230 "
1231 AVFORMAT_COMPONENTS="
1232 demuxers
1233 muxers
1234 protocols
1235 "
1236
1237 AVRESAMPLE_COMPONENTS=""
1238 AVUTIL_COMPONENTS=""
1239
1240 COMPONENT_LIST="
1241 $AVCODEC_COMPONENTS
1242 $AVDEVICE_COMPONENTS
1243 $AVFILTER_COMPONENTS
1244 $AVFORMAT_COMPONENTS
1245 $AVRESAMPLE_COMPONENTS
1246 $AVUTIL_COMPONENTS
1247 "
1248
1249 EXAMPLE_LIST="
1250 decode_audio_example
1251 decode_video_example
1252 encode_audio_example
1253 encode_video_example
1254 filter_audio_example
1255 metadata_example
1256 output_example
1257 qsvdec_example
1258 transcode_aac_example
1259 "
1260
1261 # catchall list of things that require external libs to link
1262 EXTRALIBS_LIST="
1263 cpu_init
1264 cws2fws
1265 "
1266
1267 HWACCEL_LIBRARY_NONFREE_LIST="
1268 cuda
1269 libnpp
1270 "
1271 HWACCEL_LIBRARY_LIST="
1272 $HWACCEL_LIBRARY_NONFREE_LIST
1273 d3d11va
1274 dxva2
1275 libmfx
1276 mmal
1277 nvenc
1278 omx
1279 vaapi
1280 vda
1281 vdpau
1282 "
1283
1284 EXTERNAL_LIBRARY_GPL_LIST="
1285 libcdio
1286 libx264
1287 libx265
1288 libxavs
1289 libxvid
1290 "
1291
1292 EXTERNAL_LIBRARY_NONFREE_LIST="
1293 libfaac
1294 libfdk_aac
1295 openssl
1296 "
1297
1298 EXTERNAL_LIBRARY_VERSION3_LIST="
1299 libopencore_amrnb
1300 libopencore_amrwb
1301 libvo_aacenc
1302 libvo_amrwbenc
1303 "
1304
1305 EXTERNAL_LIBRARY_LIST="
1306 $EXTERNAL_LIBRARY_GPL_LIST
1307 $EXTERNAL_LIBRARY_NONFREE_LIST
1308 $EXTERNAL_LIBRARY_VERSION3_LIST
1309 avisynth
1310 avxsynth
1311 frei0r
1312 gnutls
1313 libbs2b
1314 libdc1394
1315 libdcadec
1316 libfontconfig
1317 libfreetype
1318 libgsm
1319 libhdcd
1320 libilbc
1321 libjack
1322 libkvazaar
1323 libmp3lame
1324 libopencv
1325 libopenh264
1326 libopenjpeg
1327 libopus
1328 libpulse
1329 librtmp
1330 libschroedinger
1331 libsnappy
1332 libspeex
1333 libtheora
1334 libtwolame
1335 libvorbis
1336 libvpx
1337 libwavpack
1338 libwebp
1339 libxcb
1340 libxcb_shm
1341 libxcb_xfixes
1342 "
1343
1344 SYSTEM_LIBRARY_LIST="
1345 bzlib
1346 zlib
1347 "
1348
1349 FEATURE_LIST="
1350 gray
1351 hardcoded_tables
1352 omx_rpi
1353 runtime_cpudetect
1354 safe_bitstream_reader
1355 shared
1356 small
1357 sram
1358 static
1359 swscale_alpha
1360 "
1361
1362 LIBRARY_LIST="
1363 avcodec
1364 avdevice
1365 avfilter
1366 avformat
1367 avresample
1368 avutil
1369 swscale
1370 "
1371
1372 LICENSE_LIST="
1373 gpl
1374 nonfree
1375 version3
1376 "
1377
1378 PROGRAM_LIST="
1379 avconv
1380 avplay
1381 avprobe
1382 "
1383
1384 SUBSYSTEM_LIST="
1385 dct
1386 doc
1387 error_resilience
1388 faan
1389 fft
1390 lsp
1391 lzo
1392 mdct
1393 network
1394 rdft
1395 "
1396
1397 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1398 CONFIG_LIST="
1399 $EXAMPLE_LIST
1400 $EXTERNAL_LIBRARY_LIST
1401 $HWACCEL_LIBRARY_LIST
1402 $FEATURE_LIST
1403 $LICENSE_LIST
1404 $LIBRARY_LIST
1405 $PROGRAM_LIST
1406 $SUBSYSTEM_LIST
1407 $SYSTEM_LIBRARY_LIST
1408 neon_clobber_test
1409 pic
1410 pod2man
1411 texi2html
1412 thumb
1413 valgrind_backtrace
1414 xmm_clobber_test
1415 $COMPONENT_LIST
1416 "
1417
1418 THREADS_LIST="
1419 pthreads
1420 w32threads
1421 "
1422
1423 ATOMICS_LIST="
1424 atomics_gcc
1425 atomics_suncc
1426 atomics_win32
1427 "
1428
1429 ARCH_LIST="
1430 aarch64
1431 alpha
1432 arm
1433 avr32
1434 avr32_ap
1435 avr32_uc
1436 bfin
1437 ia64
1438 m68k
1439 mips
1440 mips64
1441 parisc
1442 ppc
1443 ppc64
1444 s390
1445 sh4
1446 sparc
1447 sparc64
1448 tilegx
1449 tilepro
1450 tomi
1451 x86
1452 x86_32
1453 x86_64
1454 "
1455
1456 ARCH_EXT_LIST_ARM="
1457 armv5te
1458 armv6
1459 armv6t2
1460 armv8
1461 neon
1462 vfp
1463 vfpv3
1464 "
1465
1466 ARCH_EXT_LIST_X86_SIMD="
1467 amd3dnow
1468 amd3dnowext
1469 avx
1470 avx2
1471 fma3
1472 fma4
1473 mmx
1474 mmxext
1475 sse
1476 sse2
1477 sse3
1478 sse4
1479 sse42
1480 ssse3
1481 xop
1482 "
1483
1484 ARCH_EXT_LIST_PPC="
1485 altivec
1486 dcbzl
1487 ldbrx
1488 power8
1489 ppc4xx
1490 vsx
1491 "
1492
1493 ARCH_EXT_LIST_X86="
1494 $ARCH_EXT_LIST_X86_SIMD
1495 cpunop
1496 i686
1497 "
1498
1499 ARCH_EXT_LIST_MIPS="
1500 loongson
1501 mips32r1
1502 mips64r1
1503 mips32r2
1504 mips64r2
1505 mips32r6
1506 mips64r6
1507 "
1508
1509 ARCH_EXT_LIST="
1510 $ARCH_EXT_LIST_ARM
1511 $ARCH_EXT_LIST_MIPS
1512 $ARCH_EXT_LIST_PPC
1513 $ARCH_EXT_LIST_X86
1514 vis
1515 "
1516
1517 ARCH_FEATURES="
1518 aligned_stack
1519 fast_64bit
1520 fast_clz
1521 fast_cmov
1522 local_aligned_8
1523 local_aligned_16
1524 local_aligned_32
1525 simd_align_16
1526 simd_align_32
1527 "
1528
1529 BUILTIN_LIST="
1530 atomic_cas_ptr
1531 machine_rw_barrier
1532 MemoryBarrier
1533 mm_empty
1534 rdtsc
1535 sem_timedwait
1536 sync_val_compare_and_swap
1537 "
1538 HAVE_LIST_CMDLINE="
1539 inline_asm
1540 symver
1541 x86asm
1542 "
1543
1544 HAVE_LIST_PUB="
1545 bigendian
1546 fast_unaligned
1547 "
1548
1549 HEADERS_LIST="
1550 AVFoundation_AVFoundation_h
1551 alsa_asoundlib_h
1552 arpa_inet_h
1553 cdio_paranoia_h
1554 cdio_paranoia_paranoia_h
1555 d3d11_h
1556 dispatch_dispatch_h
1557 dev_bktr_ioctl_bt848_h
1558 dev_bktr_ioctl_meteor_h
1559 dev_ic_bt8xx_h
1560 dev_video_bktr_ioctl_bt848_h
1561 dev_video_meteor_ioctl_meteor_h
1562 direct_h
1563 dlfcn_h
1564 dxgidebug_h
1565 dxva_h
1566 gsm_h
1567 io_h
1568 mach_mach_time_h
1569 machine_ioctl_bt848_h
1570 machine_ioctl_meteor_h
1571 malloc_h
1572 poll_h
1573 sndio_h
1574 soundcard_h
1575 stdatomic_h
1576 sys_mman_h
1577 sys_param_h
1578 sys_resource_h
1579 sys_select_h
1580 sys_soundcard_h
1581 sys_time_h
1582 sys_un_h
1583 sys_videoio_h
1584 unistd_h
1585 valgrind_valgrind_h
1586 windows_h
1587 winsock2_h
1588 "
1589
1590 INTRINSICS_LIST="
1591 intrinsics_neon
1592 "
1593
1594 MATH_FUNCS="
1595 atanf
1596 atan2f
1597 cbrtf
1598 cosf
1599 exp2
1600 exp2f
1601 expf
1602 isinf
1603 isnan
1604 ldexpf
1605 llrint
1606 llrintf
1607 log2
1608 log2f
1609 log10f
1610 lrint
1611 lrintf
1612 powf
1613 rint
1614 round
1615 roundf
1616 sinf
1617 trunc
1618 truncf
1619 "
1620
1621 SYSTEM_FUNCS="
1622 aligned_malloc
1623 clock_gettime
1624 closesocket
1625 CommandLineToArgvW
1626 CoTaskMemFree
1627 CryptGenRandom
1628 fcntl
1629 flt_lim
1630 fork
1631 getaddrinfo
1632 gethrtime
1633 getopt
1634 GetProcessAffinityMask
1635 GetProcessMemoryInfo
1636 GetProcessTimes
1637 getrusage
1638 GetSystemTimeAsFileTime
1639 gettimeofday
1640 gmtime_r
1641 inet_aton
1642 isatty
1643 LoadLibrary
1644 localtime_r
1645 mach_absolute_time
1646 MapViewOfFile
1647 memalign
1648 mkstemp
1649 mmap
1650 mprotect
1651 nanosleep
1652 posix_memalign
1653 sched_getaffinity
1654 SetConsoleTextAttribute
1655 setmode
1656 setrlimit
1657 Sleep
1658 strerror_r
1659 sysconf
1660 sysctl
1661 usleep
1662 VirtualAlloc
1663 "
1664
1665 TOOLCHAIN_FEATURES="
1666 as_arch_directive
1667 as_fpu_directive
1668 as_func
1669 as_object_arch
1670 asm_mod_q
1671 attribute_may_alias
1672 attribute_packed
1673 blocks_extension
1674 ebp_available
1675 ebx_available
1676 gnu_as
1677 ibm_asm
1678 inline_asm_labels
1679 pragma_deprecated
1680 symver_asm_label
1681 symver_gnu_asm
1682 vfp_args
1683 xform_asm
1684 xmm_clobbers
1685 "
1686
1687 TYPES_LIST="
1688 CONDITION_VARIABLE_Ptr
1689 socklen_t
1690 struct_addrinfo
1691 struct_group_source_req
1692 struct_ip_mreq_source
1693 struct_ipv6_mreq
1694 struct_pollfd
1695 struct_rusage_ru_maxrss
1696 struct_sockaddr_in6
1697 struct_sockaddr_sa_len
1698 struct_sockaddr_storage
1699 struct_v4l2_frmivalenum_discrete
1700 "
1701
1702 HAVE_LIST="
1703 $ARCH_EXT_LIST
1704 $(add_suffix _external $ARCH_EXT_LIST)
1705 $(add_suffix _inline $ARCH_EXT_LIST)
1706 $ARCH_FEATURES
1707 $BUILTIN_LIST
1708 $HAVE_LIST_CMDLINE
1709 $HAVE_LIST_PUB
1710 $HEADERS_LIST
1711 $INTRINSICS_LIST
1712 $MATH_FUNCS
1713 $SYSTEM_FUNCS
1714 $THREADS_LIST
1715 $TOOLCHAIN_FEATURES
1716 $TYPES_LIST
1717 dos_paths
1718 libc_msvcrt
1719 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1720 sdl
1721 section_data_rel_ro
1722 threads
1723 uwp
1724 vaapi_drm
1725 vaapi_x11
1726 vdpau_x11
1727 "
1728
1729 # options emitted with CONFIG_ prefix but not available on the command line
1730 CONFIG_EXTRA="
1731 aandcttables
1732 ac3dsp
1733 adts_header
1734 audio_frame_queue
1735 audiodsp
1736 blockdsp
1737 bswapdsp
1738 cabac
1739 dirac_parse
1740 dvprofile
1741 faandct
1742 faanidct
1743 fdctdsp
1744 flacdsp
1745 fmtconvert
1746 g722dsp
1747 gmp
1748 golomb
1749 gplv3
1750 h263dsp
1751 h264chroma
1752 h264dsp
1753 h264parse
1754 h264pred
1755 h264qpel
1756 hevc_ps
1757 hpeldsp
1758 huffman
1759 huffyuvdsp
1760 huffyuvencdsp
1761 idctdsp
1762 iirfilter
1763 imdct15
1764 intrax8
1765 iso_media
1766 ividsp
1767 jpegtables
1768 lgplv3
1769 libx262
1770 libxcb_shape
1771 lpc
1772 lzf
1773 me_cmp
1774 mpeg_er
1775 mpegaudio
1776 mpegaudiodsp
1777 mpegaudioheader
1778 mpegvideo
1779 mpegvideoenc
1780 mss34dsp
1781 pixblockdsp
1782 qpeldsp
1783 qsv
1784 qsvdec
1785 qsvenc
1786 rangecoder
1787 riffdec
1788 riffenc
1789 rtpdec
1790 rtpenc_chain
1791 rv34dsp
1792 sinewin
1793 snappy
1794 srtp
1795 startcode
1796 texturedsp
1797 texturedspenc
1798 tpeldsp
1799 vaapi_encode
1800 vc1dsp
1801 videodsp
1802 vp3dsp
1803 vp56dsp
1804 vp8dsp
1805 wma_freqs
1806 wmv2dsp
1807 "
1808
1809 CMDLINE_SELECT="
1810 $ARCH_EXT_LIST
1811 $CONFIG_LIST
1812 $HAVE_LIST_CMDLINE
1813 $THREADS_LIST
1814 asm
1815 cross_compile
1816 debug
1817 extra_warnings
1818 logging
1819 lto
1820 optimizations
1821 rpath
1822 "
1823
1824 PATHS_LIST="
1825 bindir
1826 datadir
1827 docdir
1828 incdir
1829 libdir
1830 mandir
1831 prefix
1832 shlibdir
1833 "
1834
1835 CMDLINE_SET="
1836 $PATHS_LIST
1837 ar
1838 arch
1839 as
1840 cc
1841 objcc
1842 cpu
1843 cross_prefix
1844 custom_allocator
1845 dep_cc
1846 env
1847 extra_version
1848 host_cc
1849 host_cflags
1850 host_extralibs
1851 host_ld
1852 host_ldflags
1853 host_os
1854 ignore_tests
1855 ld
1856 logfile
1857 malloc_prefix
1858 nm
1859 optflags
1860 pkg_config
1861 pkg_config_flags
1862 random_seed
1863 samples
1864 sysinclude
1865 sysroot
1866 target_exec
1867 target_os
1868 target_path
1869 target_samples
1870 toolchain
1871 x86asmexe
1872 "
1873
1874 CMDLINE_APPEND="
1875 extra_cflags
1876 extra_objcflags
1877 host_cppflags
1878 "
1879
1880 # code dependency declarations
1881
1882 # architecture extensions
1883
1884 armv5te_deps="arm"
1885 armv6_deps="arm"
1886 armv6t2_deps="arm"
1887 armv8_deps="aarch64"
1888 neon_deps_any="aarch64 arm"
1889 intrinsics_neon_deps="neon"
1890 vfp_deps_any="aarch64 arm"
1891 vfpv3_deps="vfp"
1892
1893 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1894
1895 altivec_deps="ppc"
1896 dcbzl_deps="ppc"
1897 ldbrx_deps="ppc"
1898 ppc4xx_deps="ppc"
1899 vsx_deps="altivec"
1900 power8_deps="vsx"
1901
1902 loongson_deps="mips"
1903 mips32r1_deps="mips32"
1904 mips32r2_deps="mips32"
1905 mips32r6_deps="mips32"
1906 mips64r1_deps="mips64"
1907 mips64r2_deps="mips64"
1908 mips64r6_deps="mips64"
1909
1910 vis_deps="sparc"
1911
1912 cpunop_deps="i686"
1913 x86_64_select="i686"
1914 x86_64_suggest="fast_cmov"
1915
1916 amd3dnow_deps="mmx"
1917 amd3dnowext_deps="amd3dnow"
1918 i686_deps="x86"
1919 mmx_deps="x86"
1920 mmxext_deps="mmx"
1921 sse_deps="mmxext"
1922 sse2_deps="sse"
1923 sse3_deps="sse2"
1924 ssse3_deps="sse3"
1925 sse4_deps="ssse3"
1926 sse42_deps="sse4"
1927 avx_deps="sse42"
1928 xop_deps="avx"
1929 fma3_deps="avx"
1930 fma4_deps="avx"
1931 avx2_deps="avx"
1932
1933 mmx_external_deps="x86asm"
1934 mmx_inline_deps="inline_asm x86"
1935 mmx_suggest="mmx_external mmx_inline"
1936
1937 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1938 eval dep=\$${ext}_deps
1939 eval ${ext}_external_deps='"${dep}_external"'
1940 eval ${ext}_inline_deps='"${dep}_inline"'
1941 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1942 done
1943
1944 aligned_stack_if_any="aarch64 ppc x86"
1945 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1946 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1947 fast_unaligned_if_any="aarch64 ppc x86"
1948 simd_align_16_if_any="altivec neon sse"
1949 simd_align_32_if_any="avx"
1950
1951 # system capabilities
1952 symver_if_any="symver_asm_label symver_gnu_asm"
1953 valgrind_backtrace_conflict="optimizations"
1954 valgrind_backtrace_deps="valgrind_valgrind_h"
1955
1956 # threading support
1957 atomics_gcc_if="sync_val_compare_and_swap"
1958 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1959 atomics_win32_if="MemoryBarrier"
1960 atomics_native_if_any="$ATOMICS_LIST"
1961 w32threads_deps="atomics_native"
1962 threads_if_any="$THREADS_LIST"
1963
1964 # subsystems
1965 dct_select="rdft"
1966 dirac_parse_select="golomb"
1967 error_resilience_select="me_cmp"
1968 faandct_deps="faan"
1969 faandct_select="fdctdsp"
1970 faanidct_deps="faan"
1971 faanidct_select="idctdsp"
1972 h264dsp_select="startcode"
1973 hevc_ps_select="golomb"
1974 intrax8_select="blockdsp idctdsp"
1975 mdct_select="fft"
1976 rdft_select="fft"
1977 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1978 mpeg_er_select="error_resilience"
1979 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1980 mpegaudiodsp_select="dct"
1981 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1982 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1983 vc1dsp_select="h264chroma qpeldsp startcode"
1984
1985 # decoders / encoders
1986 aac_decoder_select="adts_header imdct15 mdct sinewin"
1987 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1988 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1989 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1990 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1991 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1992 adpcm_g722_decoder_select="g722dsp"
1993 adpcm_g722_encoder_select="g722dsp"
1994 aic_decoder_select="golomb idctdsp"
1995 alac_encoder_select="lpc"
1996 als_decoder_select="bswapdsp"
1997 amrnb_decoder_select="lsp"
1998 amrwb_decoder_select="lsp"
1999 amv_decoder_select="sp5x_decoder"
2000 ape_decoder_select="bswapdsp"
2001 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2002 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2003 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2004 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2005 atrac1_decoder_select="mdct sinewin"
2006 atrac3_decoder_select="mdct"
2007 atrac3p_decoder_select="mdct sinewin"
2008 bink_decoder_select="blockdsp hpeldsp"
2009 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2010 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2011 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2012 clearvideo_decoder_select="idctdsp"
2013 cllc_decoder_select="bswapdsp"
2014 comfortnoise_encoder_select="lpc"
2015 cook_decoder_select="audiodsp mdct sinewin"
2016 cscd_decoder_select="lzo"
2017 cscd_decoder_suggest="zlib"
2018 dca_decoder_select="fmtconvert mdct"
2019 dds_decoder_select="texturedsp"
2020 dnxhd_decoder_select="blockdsp idctdsp"
2021 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2022 dvvideo_decoder_select="dvprofile idctdsp"
2023 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2024 dxa_decoder_deps="zlib"
2025 dxv_decoder_select="lzf texturedsp"
2026 eac3_decoder_select="ac3_decoder"
2027 eac3_encoder_select="ac3_encoder"
2028 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2029 eatgq_decoder_select="aandcttables idctdsp"
2030 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2031 exr_decoder_deps="zlib"
2032 ffv1_decoder_select="rangecoder"
2033 ffv1_encoder_select="rangecoder"
2034 ffvhuff_decoder_select="huffyuv_decoder"
2035 ffvhuff_encoder_select="huffyuv_encoder"
2036 fic_decoder_select="golomb"
2037 flac_decoder_select="flacdsp"
2038 flac_encoder_select="bswapdsp flacdsp lpc"
2039 flashsv_decoder_deps="zlib"
2040 flashsv_encoder_deps="zlib"
2041 flashsv2_decoder_deps="zlib"
2042 flv_decoder_select="h263_decoder"
2043 flv_encoder_select="h263_encoder"
2044 fourxm_decoder_select="blockdsp bswapdsp"
2045 fraps_decoder_select="bswapdsp huffman"
2046 g2m_decoder_deps="zlib"
2047 g2m_decoder_select="blockdsp idctdsp jpegtables"
2048 h261_decoder_select="mpeg_er mpegvideo"
2049 h261_encoder_select="aandcttables mpegvideoenc"
2050 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2051 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2052 h263i_decoder_select="h263_decoder"
2053 h263p_encoder_select="h263_encoder"
2054 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2055 h264_decoder_suggest="error_resilience"
2056 hap_decoder_select="snappy texturedsp"
2057 hap_encoder_deps="libsnappy"
2058 hap_encoder_select="texturedspenc"
2059 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2060 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2061 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2062 iac_decoder_select="imc_decoder"
2063 imc_decoder_select="bswapdsp fft mdct sinewin"
2064 indeo3_decoder_select="hpeldsp"
2065 indeo4_decoder_select="ividsp"
2066 indeo5_decoder_select="ividsp"
2067 interplay_video_decoder_select="hpeldsp"
2068 jpegls_decoder_select="mjpeg_decoder"
2069 jv_decoder_select="blockdsp"
2070 lagarith_decoder_select="huffyuvdsp"
2071 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2072 magicyuv_decoder_select="huffyuvdsp"
2073 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2074 metasound_decoder_select="lsp mdct sinewin"
2075 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2076 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2077 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2078 mjpegb_decoder_select="mjpeg_decoder"
2079 mlp_decoder_select="mlp_parser"
2080 motionpixels_decoder_select="bswapdsp"
2081 mp1_decoder_select="mpegaudio"
2082 mp1float_decoder_select="mpegaudio"
2083 mp2_decoder_select="mpegaudio"
2084 mp2float_decoder_select="mpegaudio"
2085 mp3_decoder_select="mpegaudio"
2086 mp3adu_decoder_select="mpegaudio"
2087 mp3adufloat_decoder_select="mpegaudio"
2088 mp3float_decoder_select="mpegaudio"
2089 mp3on4_decoder_select="mpegaudio"
2090 mp3on4float_decoder_select="mpegaudio"
2091 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2092 mpc8_decoder_select="mpegaudiodsp"
2093 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2094 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2095 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2096 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2097 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2098 mpeg4_encoder_select="h263_encoder"
2099 msa1_decoder_select="mss34dsp"
2100 msmpeg4v1_decoder_select="h263_decoder"
2101 msmpeg4v2_decoder_select="h263_decoder"
2102 msmpeg4v2_encoder_select="h263_encoder"
2103 msmpeg4v3_decoder_select="h263_decoder"
2104 msmpeg4v3_encoder_select="h263_encoder"
2105 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2106 mts2_decoder_select="mss34dsp"
2107 mxpeg_decoder_select="mjpeg_decoder"
2108 nellymoser_decoder_select="mdct sinewin"
2109 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2110 nuv_decoder_select="idctdsp lzo"
2111 on2avc_decoder_select="mdct"
2112 opus_decoder_deps="avresample"
2113 opus_decoder_select="imdct15"
2114 png_decoder_deps="zlib"
2115 png_encoder_deps="zlib"
2116 png_encoder_select="huffyuvencdsp"
2117 prores_decoder_select="idctdsp"
2118 prores_encoder_select="fdctdsp"
2119 qcelp_decoder_select="lsp"
2120 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2121 ra_144_encoder_select="audio_frame_queue lpc"
2122 ralf_decoder_select="golomb"
2123 rscc_decoder_deps="zlib"
2124 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2125 rv10_encoder_select="h263_encoder"
2126 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2127 rv20_encoder_select="h263_encoder"
2128 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2129 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2130 screenpresso_decoder_deps="zlib"
2131 sipr_decoder_select="lsp"
2132 sp5x_decoder_select="mjpeg_decoder"
2133 svq1_decoder_select="hpeldsp"
2134 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2135 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2136 svq3_decoder_suggest="zlib"
2137 tak_decoder_select="audiodsp"
2138 tdsc_decoder_deps="zlib"
2139 tdsc_decoder_select="mjpeg_decoder"
2140 theora_decoder_select="vp3_decoder"
2141 thp_decoder_select="mjpeg_decoder"
2142 tiff_decoder_suggest="zlib"
2143 tiff_encoder_suggest="zlib"
2144 truehd_decoder_select="mlp_decoder"
2145 truemotion2_decoder_select="bswapdsp"
2146 truespeech_decoder_select="bswapdsp"
2147 tscc_decoder_deps="zlib"
2148 txd_decoder_select="texturedsp"
2149 twinvq_decoder_select="mdct lsp sinewin"
2150 utvideo_decoder_select="bswapdsp huffyuvdsp"
2151 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2152 vble_decoder_select="huffyuvdsp"
2153 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2154 vc1image_decoder_select="vc1_decoder"
2155 vorbis_decoder_select="mdct"
2156 vorbis_encoder_select="mdct"
2157 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2158 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2159 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2160 vp6a_decoder_select="vp6_decoder"
2161 vp6f_decoder_select="vp6_decoder"
2162 vp7_decoder_select="h264pred videodsp vp8dsp"
2163 vp8_decoder_select="h264pred videodsp vp8dsp"
2164 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2165 webp_decoder_select="vp8_decoder"
2166 wmapro_decoder_select="mdct sinewin wma_freqs"
2167 wmav1_decoder_select="mdct sinewin wma_freqs"
2168 wmav1_encoder_select="mdct sinewin wma_freqs"
2169 wmav2_decoder_select="mdct sinewin wma_freqs"
2170 wmav2_encoder_select="mdct sinewin wma_freqs"
2171 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2172 wmv1_decoder_select="h263_decoder"
2173 wmv1_encoder_select="h263_encoder"
2174 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2175 wmv2_encoder_select="h263_encoder wmv2dsp"
2176 wmv3_decoder_select="vc1_decoder"
2177 wmv3image_decoder_select="wmv3_decoder"
2178 zerocodec_decoder_deps="zlib"
2179 zlib_decoder_deps="zlib"
2180 zlib_encoder_deps="zlib"
2181 zmbv_decoder_deps="zlib"
2182 zmbv_encoder_deps="zlib"
2183
2184 # hardware accelerators
2185 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2186 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2187 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2188 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2189
2190 h263_vaapi_hwaccel_deps="vaapi"
2191 h263_vaapi_hwaccel_select="h263_decoder"
2192 h264_d3d11va_hwaccel_deps="d3d11va"
2193 h264_d3d11va_hwaccel_select="h264_decoder"
2194 h264_d3d11va2_hwaccel_deps="d3d11va"
2195 h264_d3d11va2_hwaccel_select="h264_decoder"
2196 h264_dxva2_hwaccel_deps="dxva2"
2197 h264_dxva2_hwaccel_select="h264_decoder"
2198 h264_mmal_hwaccel_deps="mmal"
2199 h264_qsv_hwaccel_deps="libmfx"
2200 h264_vaapi_hwaccel_deps="vaapi"
2201 h264_vaapi_hwaccel_select="h264_decoder"
2202 h264_vda_hwaccel_deps="vda"
2203 h264_vda_hwaccel_select="h264_decoder"
2204 h264_vda_old_hwaccel_deps="vda"
2205 h264_vda_old_hwaccel_select="h264_decoder"
2206 h264_vdpau_hwaccel_deps="vdpau"
2207 h264_vdpau_hwaccel_select="h264_decoder"
2208 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2209 hevc_d3d11va_hwaccel_select="hevc_decoder"
2210 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2211 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2212 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2213 hevc_dxva2_hwaccel_select="hevc_decoder"
2214 hevc_qsv_hwaccel_deps="libmfx"
2215 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2216 hevc_vaapi_hwaccel_select="hevc_decoder"
2217 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2218 hevc_vdpau_hwaccel_select="hevc_decoder"
2219 mpeg1_vdpau_hwaccel_deps="vdpau"
2220 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2221 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2222 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2223 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2224 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2225 mpeg2_dxva2_hwaccel_deps="dxva2"
2226 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2227 mpeg2_mmal_hwaccel_deps="mmal"
2228 mpeg2_qsv_hwaccel_deps="libmfx"
2229 mpeg2_vaapi_hwaccel_deps="vaapi"
2230 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2231 mpeg2_vdpau_hwaccel_deps="vdpau"
2232 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2233 mpeg4_vaapi_hwaccel_deps="vaapi"
2234 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2235 mpeg4_vdpau_hwaccel_deps="vdpau"
2236 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2237 vc1_d3d11va_hwaccel_deps="d3d11va"
2238 vc1_d3d11va_hwaccel_select="vc1_decoder"
2239 vc1_d3d11va2_hwaccel_deps="d3d11va"
2240 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2241 vc1_dxva2_hwaccel_deps="dxva2"
2242 vc1_dxva2_hwaccel_select="vc1_decoder"
2243 vc1_mmal_hwaccel_deps="mmal"
2244 vc1_qsv_hwaccel_deps="libmfx"
2245 vc1_vaapi_hwaccel_deps="vaapi"
2246 vc1_vaapi_hwaccel_select="vc1_decoder"
2247 vc1_vdpau_hwaccel_deps="vdpau"
2248 vc1_vdpau_hwaccel_select="vc1_decoder"
2249 vp8_qsv_hwaccel_deps="libmfx"
2250 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2251 vp8_vaapi_hwaccel_select="vp8_decoder"
2252 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2253 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2254 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2255 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2256 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2257
2258 # hardware-accelerated codecs
2259 nvenc_deps_any="libdl LoadLibrary"
2260 omx_deps="libdl pthreads"
2261 omx_rpi_select="omx"
2262 qsv_deps="libmfx"
2263 qsvdec_select="qsv"
2264 qsvenc_select="qsv"
2265 vaapi_encode_deps="vaapi"
2266
2267 hwupload_cuda_filter_deps="cuda"
2268 scale_npp_filter_deps="cuda libnpp"
2269
2270 h264_mmal_decoder_deps="mmal"
2271 h264_nvenc_encoder_deps="nvenc"
2272 h264_omx_encoder_deps="omx"
2273 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2274 h264_qsv_encoder_select="qsvenc"
2275 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2276 h264_vaapi_encoder_select="vaapi_encode golomb"
2277 hevc_nvenc_encoder_deps="nvenc"
2278 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2279 hevc_qsv_encoder_select="hevc_ps qsvenc"
2280 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2281 hevc_vaapi_encoder_select="vaapi_encode golomb"
2282 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2283 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2284 mpeg2_mmal_decoder_deps="mmal"
2285 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2286 mpeg2_qsv_encoder_select="qsvenc"
2287 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2288 mpeg2_vaapi_encoder_select="vaapi_encode"
2289 mpeg4_omx_encoder_deps="omx"
2290 vc1_mmal_decoder_deps="mmal"
2291 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2292 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2293 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2294 vp8_vaapi_encoder_select="vaapi_encode"
2295 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2296 vp9_vaapi_encoder_select="vaapi_encode"
2297
2298 nvenc_h264_encoder_select="h264_nvenc_encoder"
2299 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2300
2301 # parsers
2302 aac_parser_select="adts_header"
2303 h264_parser_select="golomb h264dsp h264parse"
2304 hevc_parser_select="hevc_ps"
2305 mpegaudio_parser_select="mpegaudioheader"
2306 mpegvideo_parser_select="mpegvideo"
2307 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2308 vc1_parser_select="vc1dsp"
2309
2310 # bitstream_filters
2311 aac_adtstoasc_bsf_select="adts_header"
2312 mjpeg2jpeg_bsf_select="jpegtables"
2313
2314 # external libraries
2315 avisynth_deps="LoadLibrary"
2316 avxsynth_deps="libdl"
2317 avisynth_demuxer_deps_any="avisynth avxsynth"
2318 avisynth_demuxer_select="riffdec"
2319 libdcadec_decoder_deps="libdcadec"
2320 libfaac_encoder_deps="libfaac"
2321 libfaac_encoder_select="audio_frame_queue"
2322 libfdk_aac_decoder_deps="libfdk_aac"
2323 libfdk_aac_encoder_deps="libfdk_aac"
2324 libfdk_aac_encoder_select="audio_frame_queue"
2325 libgsm_decoder_deps="libgsm"
2326 libgsm_encoder_deps="libgsm"
2327 libgsm_ms_decoder_deps="libgsm"
2328 libgsm_ms_encoder_deps="libgsm"
2329 libilbc_decoder_deps="libilbc"
2330 libilbc_encoder_deps="libilbc"
2331 libkvazaar_encoder_deps="libkvazaar"
2332 libmp3lame_encoder_deps="libmp3lame"
2333 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2334 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2335 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2336 libopencore_amrnb_encoder_select="audio_frame_queue"
2337 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2338 libopenh264_decoder_deps="libopenh264"
2339 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2340 libopenh264_encoder_deps="libopenh264"
2341 libopenjpeg_decoder_deps="libopenjpeg"
2342 libopenjpeg_encoder_deps="libopenjpeg"
2343 libopus_decoder_deps="libopus"
2344 libopus_encoder_deps="libopus"
2345 libopus_encoder_select="audio_frame_queue"
2346 libschroedinger_decoder_deps="libschroedinger"
2347 libschroedinger_encoder_deps="libschroedinger"
2348 libspeex_decoder_deps="libspeex"
2349 libspeex_encoder_deps="libspeex"
2350 libspeex_encoder_select="audio_frame_queue"
2351 libtheora_encoder_deps="libtheora"
2352 libtwolame_encoder_deps="libtwolame"
2353 libvo_aacenc_encoder_deps="libvo_aacenc"
2354 libvo_aacenc_encoder_select="audio_frame_queue"
2355 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2356 libvorbis_encoder_deps="libvorbis"
2357 libvorbis_encoder_select="audio_frame_queue"
2358 libvpx_vp8_decoder_deps="libvpx"
2359 libvpx_vp8_encoder_deps="libvpx"
2360 libvpx_vp9_decoder_deps="libvpx"
2361 libvpx_vp9_encoder_deps="libvpx"
2362 libwavpack_encoder_deps="libwavpack"
2363 libwavpack_encoder_select="audio_frame_queue"
2364 libwebp_encoder_deps="libwebp"
2365 libx262_encoder_deps="libx262"
2366 libx264_encoder_deps="libx264"
2367 libx265_encoder_deps="libx265"
2368 libxavs_encoder_deps="libxavs"
2369 libxvid_encoder_deps="libxvid mkstemp"
2370
2371 # demuxers / muxers
2372 ac3_demuxer_select="ac3_parser"
2373 asf_demuxer_select="riffdec"
2374 asf_muxer_select="riffenc"
2375 asf_stream_muxer_select="asf_muxer"
2376 avi_demuxer_select="iso_media riffdec"
2377 avi_muxer_select="riffenc"
2378 caf_demuxer_select="iso_media riffdec"
2379 dash_muxer_select="mp4_muxer"
2380 dirac_demuxer_select="dirac_parser"
2381 dv_demuxer_select="dvprofile"
2382 dv_muxer_select="dvprofile"
2383 dxa_demuxer_select="riffdec"
2384 eac3_demuxer_select="ac3_parser"
2385 f4v_muxer_select="mov_muxer"
2386 flac_demuxer_select="flac_parser"
2387 hds_muxer_select="flv_muxer"
2388 hls_muxer_select="mpegts_muxer"
2389 ipod_muxer_select="mov_muxer"
2390 ismv_muxer_select="mov_muxer"
2391 matroska_audio_muxer_select="matroska_muxer"
2392 matroska_demuxer_select="iso_media riffdec"
2393 matroska_demuxer_suggest="bzlib lzo zlib"
2394 matroska_muxer_select="iso_media riffenc"
2395 mmf_muxer_select="riffenc"
2396 mov_demuxer_select="iso_media riffdec"
2397 mov_demuxer_suggest="zlib"
2398 mov_muxer_select="iso_media riffenc rtpenc_chain"
2399 mp3_demuxer_select="mpegaudio_parser"
2400 mp3_muxer_select="mpegaudioheader"
2401 mp4_muxer_select="mov_muxer"
2402 mpegts_demuxer_select="iso_media"
2403 mpegts_muxer_select="adts_muxer latm_muxer"
2404 mpegtsraw_demuxer_select="mpegts_demuxer"
2405 mxf_d10_muxer_select="mxf_muxer"
2406 nut_muxer_select="riffenc"
2407 nuv_demuxer_select="riffdec"
2408 oga_muxer_select="ogg_muxer"
2409 ogg_demuxer_select="dirac_parse"
2410 opus_muxer_select="ogg_muxer"
2411 psp_muxer_select="mov_muxer"
2412 rtp_demuxer_select="sdp_demuxer"
2413 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2414 rtsp_demuxer_select="http_protocol rtpdec"
2415 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2416 sap_demuxer_select="sdp_demuxer"
2417 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2418 sdp_demuxer_select="rtpdec"
2419 smoothstreaming_muxer_select="ismv_muxer"
2420 spdif_demuxer_select="adts_header"
2421 spdif_muxer_select="adts_header"
2422 spx_muxer_select="ogg_muxer"
2423 swf_demuxer_suggest="zlib"
2424 tak_demuxer_select="tak_parser"
2425 tg2_muxer_select="mov_muxer"
2426 tgp_muxer_select="mov_muxer"
2427 w64_demuxer_select="wav_demuxer"
2428 wav_demuxer_select="riffdec"
2429 wav_muxer_select="riffenc"
2430 webm_muxer_select="iso_media riffenc"
2431 wtv_demuxer_select="mpegts_demuxer riffdec"
2432 xmv_demuxer_select="riffdec"
2433 xwma_demuxer_select="riffdec"
2434
2435 # indevs / outdevs
2436 alsa_indev_deps="alsa"
2437 alsa_outdev_deps="alsa"
2438 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2439 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2440 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2441 dv1394_indev_deps="dv1394"
2442 dv1394_indev_select="dv_demuxer"
2443 fbdev_indev_deps="linux_fb_h"
2444 jack_indev_deps="libjack"
2445 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2446 libcdio_indev_deps="libcdio"
2447 libdc1394_indev_deps="libdc1394"
2448 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2449 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2450 pulse_indev_deps="libpulse"
2451 sndio_indev_deps="sndio"
2452 sndio_outdev_deps="sndio"
2453 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2454 vfwcap_indev_deps="vfw32 vfwcap_defines"
2455 xcbgrab_indev_deps="libxcb libxcb_shape"
2456 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2457
2458 # protocols
2459 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2460 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2461 ffrtmpcrypt_protocol_select="tcp_protocol"
2462 ffrtmphttp_protocol_conflict="librtmp_protocol"
2463 ffrtmphttp_protocol_select="http_protocol"
2464 gopher_protocol_select="network"
2465 http_protocol_select="tcp_protocol"
2466 http_protocol_suggest="zlib"
2467 httpproxy_protocol_select="tcp_protocol"
2468 httpproxy_protocol_suggest="zlib"
2469 https_protocol_select="tls_protocol"
2470 https_protocol_suggest="zlib"
2471 icecast_protocol_select="http_protocol"
2472 librtmp_protocol_deps="librtmp"
2473 librtmpe_protocol_deps="librtmp"
2474 librtmps_protocol_deps="librtmp"
2475 librtmpt_protocol_deps="librtmp"
2476 librtmpte_protocol_deps="librtmp"
2477 mmsh_protocol_select="http_protocol"
2478 mmst_protocol_select="network"
2479 rtmp_protocol_conflict="librtmp_protocol"
2480 rtmp_protocol_select="tcp_protocol"
2481 rtmp_protocol_suggest="zlib"
2482 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2483 rtmpe_protocol_suggest="zlib"
2484 rtmps_protocol_conflict="librtmp_protocol"
2485 rtmps_protocol_select="tls_protocol"
2486 rtmps_protocol_suggest="zlib"
2487 rtmpt_protocol_select="ffrtmphttp_protocol"
2488 rtmpt_protocol_suggest="zlib"
2489 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2490 rtmpte_protocol_suggest="zlib"
2491 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2492 rtmpts_protocol_suggest="zlib"
2493 rtp_protocol_select="udp_protocol"
2494 sctp_protocol_deps="struct_sctp_event_subscribe"
2495 sctp_protocol_select="network"
2496 srtp_protocol_select="rtp_protocol srtp"
2497 tcp_protocol_select="network"
2498 tls_protocol_deps_any="gnutls openssl"
2499 tls_protocol_select="tcp_protocol"
2500 udp_protocol_select="network"
2501 unix_protocol_deps="sys_un_h"
2502 unix_protocol_select="network"
2503
2504 # filters
2505 asyncts_filter_deps="avresample"
2506 blackframe_filter_deps="gpl"
2507 boxblur_filter_deps="gpl"
2508 bs2b_filter_deps="libbs2b"
2509 cropdetect_filter_deps="gpl"
2510 deinterlace_qsv_filter_deps="libmfx"
2511 deinterlace_vaapi_filter_deps="vaapi"
2512 delogo_filter_deps="gpl"
2513 drawtext_filter_deps="libfreetype"
2514 drawtext_filter_suggest="libfontconfig"
2515 frei0r_filter_deps="frei0r libdl"
2516 frei0r_src_filter_deps="frei0r libdl"
2517 hdcd_filter_deps="libhdcd"
2518 hqdn3d_filter_deps="gpl"
2519 interlace_filter_deps="gpl"
2520 movie_filter_deps="avcodec avformat"
2521 ocv_filter_deps="libopencv"
2522 resample_filter_deps="avresample"
2523 scale_filter_deps="swscale"
2524 scale_qsv_filter_deps="libmfx"
2525 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2526
2527 # examples
2528 decode_audio_example_deps="avcodec avutil"
2529 decode_video_example_deps="avcodec avutil"
2530 encode_audio_example_deps="avcodec avutil"
2531 encode_video_example_deps="avcodec avutil"
2532 filter_audio_example_deps="avfilter avutil"
2533 metadata_example_deps="avformat avutil"
2534 output_example_deps="avcodec avformat avresample avutil swscale"
2535 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2536 transcode_aac_example_deps="avcodec avformat avresample"
2537
2538 # EXTRALIBS_LIST
2539 cpu_init_extralibs="pthreads_extralibs"
2540 cws2fws_extralibs="zlib_extralibs"
2541
2542 # libraries, in linking order
2543 avcodec_deps="avutil"
2544 avcodec_select="null_bsf"
2545 avdevice_deps="avformat avcodec avutil"
2546 avfilter_deps="avutil"
2547 avformat_deps="avcodec avutil"
2548 avformat_suggest="network"
2549 avresample_deps="avutil"
2550 swscale_deps="avutil"
2551
2552 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2553 avdevice_extralibs="libm_extralibs"
2554 avformat_extralibs="libm_extralibs"
2555 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2556 avresample_extralibs="libm_extralibs"
2557 avutil_extralibs="clock_gettime_extralibs cuda_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2558 swscale_extralibs="libm_extralibs"
2559
2560 # programs
2561 avconv_deps="avcodec avfilter avformat avresample swscale"
2562 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2563 fps_filter null_filter resample_filter scale_filter
2564 trim_filter"
2565 avconv_suggest="psapi shell32"
2566 avplay_deps="avcodec avfilter avformat avresample sdl"
2567 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2568 avplay_suggest="shell32"
2569 avprobe_deps="avcodec avformat"
2570 avprobe_suggest="shell32"
2571
2572 # documentation
2573 pod2man_deps="doc"
2574 texi2html_deps="doc"
2575
2576 # default parameters
2577
2578 logfile="avbuild/config.log"
2579
2580 # installation paths
2581 prefix_default="/usr/local"
2582 bindir_default='${prefix}/bin'
2583 datadir_default='${prefix}/share/avconv'
2584 docdir_default='${prefix}/share/doc/libav'
2585 incdir_default='${prefix}/include'
2586 libdir_default='${prefix}/lib'
2587 mandir_default='${prefix}/share/man'
2588 shlibdir_default="$libdir_default"
2589
2590 # toolchain
2591 ar_default="ar"
2592 cc_default="gcc"
2593 host_cc_default="gcc"
2594 x86asmexe_default="nasm"
2595 ln_s="ln -s -f"
2596 nm_default="nm -g"
2597 pkg_config_default=pkg-config
2598 ranlib="ranlib"
2599 strip="strip"
2600 version_script='--version-script'
2601
2602 # machine
2603 arch_default=$(uname -m)
2604 cpu="generic"
2605 intrinsics="none"
2606
2607 # OS
2608 target_os_default=$(tolower $(uname -s))
2609 host_os=$target_os_default
2610
2611 # configurable options
2612 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2613
2614 enable asm
2615 enable debug
2616 enable doc
2617 enable faan faandct faanidct
2618 enable optimizations
2619 enable safe_bitstream_reader
2620 enable static
2621 enable swscale_alpha
2622 enable valgrind_backtrace
2623
2624 # By default, enable only those hwaccels that have no external dependencies.
2625 enable d3d11va dxva2 vda vdpau
2626
2627 # internal components are enabled by default
2628 enable $EXTRALIBS_LIST
2629
2630 # Avoid external, non-system, libraries getting enabled by dependency resolution
2631 disable $EXTERNAL_LIBRARY_LIST
2632
2633 # build settings
2634 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2635 LIBPREF="lib"
2636 LIBSUF=".a"
2637 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2638 SLIBPREF="lib"
2639 SLIBSUF=".so"
2640 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2641 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2642 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2643 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2644 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2645 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2646 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2647
2648 asflags_filter=echo
2649 cflags_filter=echo
2650 ldflags_filter=echo
2651
2652 AS_C='-c'
2653 AS_O='-o $@'
2654 CC_C='-c'
2655 CC_E='-E -o $@'
2656 CC_O='-o $@'
2657 OBJCC_C='-c'
2658 OBJCC_E='-E -o $@'
2659 OBJCC_O='-o $@'
2660 X86ASM_O='-o $@'
2661 LD_O='-o $@'
2662 LD_LIB='-l%'
2663 LD_PATH='-L'
2664 HOSTCC_C='-c'
2665 HOSTCC_E='-E -o $@'
2666 HOSTCC_O='-o $@'
2667 HOSTLD_O='-o $@'
2668
2669 host_extralibs='-lm'
2670 host_cflags_filter=echo
2671 host_ldflags_filter=echo
2672
2673 target_path='$(CURDIR)'
2674
2675 # since the object filename is not given with the -MM flag, the compiler
2676 # is only able to print the basename, and we must add the path ourselves
2677 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2678 DEPFLAGS='-MM'
2679
2680 mkdir -p avbuild
2681
2682 # find source path
2683 if test -f configure; then
2684 source_path=.
2685 else
2686 source_path=$(cd $(dirname "$0"); pwd)
2687 echo "$source_path" | grep -q '[[:blank:]]' &&
2688 die "Out of tree builds are impossible with whitespace in source path."
2689 test -e "$source_path/config.h" &&
2690 die "Out of tree builds are impossible with config.h in source dir."
2691 fi
2692
2693 for v in "$@"; do
2694 r=${v#*=}
2695 l=${v%"$r"}
2696 r=$(sh_quote "$r")
2697 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2698 done
2699
2700 find_things(){
2701 thing=$1
2702 pattern=$2
2703 file=$source_path/$3
2704 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2705 }
2706
2707 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2708 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2709 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2710 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2711 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2712 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2713 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2714 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2715 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2716
2717 find_things_extern(){
2718 thing=$1
2719 pattern=$2
2720 file=$source_path/$3
2721 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2722 }
2723
2724 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2725 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2726
2727 AVCODEC_COMPONENTS_LIST="
2728 $BSF_LIST
2729 $DECODER_LIST
2730 $ENCODER_LIST
2731 $HWACCEL_LIST
2732 $PARSER_LIST
2733 "
2734
2735 AVDEVICE_COMPONENTS_LIST="
2736 $INDEV_LIST
2737 $OUTDEV_LIST
2738 "
2739
2740 AVFILTER_COMPONENTS_LIST="
2741 $FILTER_LIST
2742 "
2743
2744 AVFORMAT_COMPONENTS_LIST="
2745 $DEMUXER_LIST
2746 $MUXER_LIST
2747 $PROTOCOL_LIST
2748 "
2749
2750 ALL_COMPONENTS="
2751 $AVCODEC_COMPONENTS_LIST
2752 $AVDEVICE_COMPONENTS_LIST
2753 $AVFILTER_COMPONENTS_LIST
2754 $AVFORMAT_COMPONENTS_LIST
2755 "
2756
2757 for n in $COMPONENT_LIST; do
2758 v=$(toupper ${n%s})_LIST
2759 eval enable \$$v
2760 eval ${n}_if_any="\$$v"
2761 done
2762
2763 enable $ARCH_EXT_LIST
2764
2765 die_unknown(){
2766 echo "Unknown option \"$1\"."
2767 echo "See $0 --help for available options."
2768 exit 1
2769 }
2770
2771 print_3_columns() {
2772 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2773 }
2774
2775 show_list() {
2776 suffix=_$1
2777 shift
2778 echo $* | sed s/$suffix//g | print_3_columns
2779 exit 0
2780 }
2781
2782 rand_list(){
2783 IFS=', '
2784 set -- $*
2785 unset IFS
2786 for thing; do
2787 comp=${thing%:*}
2788 prob=${thing#$comp}
2789 prob=${prob#:}
2790 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2791 echo "prob ${prob:-0.5}"
2792 printf '%s\n' $comp
2793 done
2794 }
2795
2796 do_random(){
2797 action=$1
2798 shift
2799 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2800 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2801 }
2802
2803 for opt do
2804 optval="${opt#*=}"
2805 case "$opt" in
2806 --extra-ldflags=*)
2807 add_ldflags $optval
2808 ;;
2809 --extra-ldexeflags=*)
2810 add_ldexeflags $optval
2811 ;;
2812 --extra-ldsoflags=*)
2813 add_ldsoflags $optval
2814 ;;
2815 --extra-libs=*)
2816 add_extralibs $optval
2817 ;;
2818 --disable-devices)
2819 disable $INDEV_LIST $OUTDEV_LIST
2820 ;;
2821 --enable-debug=*)
2822 debuglevel="$optval"
2823 ;;
2824 --disable-programs)
2825 disable $PROGRAM_LIST
2826 ;;
2827 --disable-everything)
2828 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2829 ;;
2830 --disable-all)
2831 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2832 disable $LIBRARY_LIST $PROGRAM_LIST doc
2833 ;;
2834 --enable-random|--disable-random)
2835 action=${opt%%-random}
2836 do_random ${action#--} $COMPONENT_LIST
2837 ;;
2838 --enable-random=*|--disable-random=*)
2839 action=${opt%%-random=*}
2840 do_random ${action#--} $optval
2841 ;;
2842 --enable-*=*|--disable-*=*)
2843 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2844 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2845 eval list=\$$(toupper $thing)_LIST
2846 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2847 $action $(filter "$name" $list)
2848 ;;
2849 --enable-avserver|--disable-avserver*)
2850 warn "avserver has been removed, the ${opt} option is only"\
2851 "provided for compatibility and will be removed in the future"
2852 ;;
2853 --enable-yasm|--disable-yasm)
2854 warn "The ${opt} option is only provided for compatibility and will be\n"\
2855 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2856 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2857 ;;
2858 --enable-?*|--disable-?*)
2859 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2860 if is_in $option $COMPONENT_LIST; then
2861 test $action = disable && action=unset
2862 eval $action \$$(toupper ${option%s})_LIST
2863 elif is_in $option $CMDLINE_SELECT; then
2864 $action $option
2865 else
2866 die_unknown $opt
2867 fi
2868 ;;
2869 --list-*)
2870 NAME="${opt#--list-}"
2871 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2872 NAME=${NAME%s}
2873 eval show_list $NAME \$$(toupper $NAME)_LIST
2874 ;;
2875 --help|-h) show_help
2876 ;;
2877 --quiet|-q) quiet=yes
2878 ;;
2879 *)
2880 optname="${opt%%=*}"
2881 optname="${optname#--}"
2882 optname=$(echo "$optname" | sed 's/-/_/g')
2883 if is_in $optname $CMDLINE_SET; then
2884 eval $optname='$optval'
2885 elif is_in $optname $CMDLINE_APPEND; then
2886 append $optname "$optval"
2887 else
2888 die_unknown $opt
2889 fi
2890 ;;
2891 esac
2892 done
2893
2894 for e in $env; do
2895 eval "export $e"
2896 done
2897
2898 disabled logging && logfile=/dev/null
2899
2900 # Die early if licensing-related configure options are incompatible.
2901 die_license_disabled() {
2902 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2903 }
2904
2905 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2906 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2907 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2908
2909 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2910
2911 enabled_all gnutls openssl &&
2912 die "GnuTLS and OpenSSL must not be enabled at the same time."
2913
2914 # Disable all the library-specific components if the library itself
2915 # is disabled, see AVCODEC_LIST and following _LIST variables.
2916
2917 disable_components(){
2918 disabled ${1} && disable $(
2919 eval components="\$$(toupper ${1})_COMPONENTS"
2920 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2921 )
2922 }
2923
2924 map 'disable_components $v' $LIBRARY_LIST
2925
2926 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2927 set >> $logfile
2928
2929 case "$toolchain" in
2930 *-asan)
2931 cc_default="${toolchain%-asan}"
2932 add_cflags -fsanitize=address
2933 add_ldflags -fsanitize=address
2934 ;;
2935 *-msan)
2936 cc_default="${toolchain%-msan}"
2937 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2938 add_ldflags -fsanitize=memory
2939 ;;
2940 *-tsan)
2941 cc_default="${toolchain%-tsan}"
2942 add_cflags -fsanitize=thread -fPIE
2943 add_ldflags -fsanitize=thread -pie
2944 case "$toolchain" in
2945 gcc-tsan)
2946 add_cflags -fPIC
2947 add_ldflags -fPIC
2948 ;;
2949 esac
2950 ;;
2951 *-usan)
2952 cc_default="${toolchain%-usan}"
2953 add_cflags -fsanitize=undefined
2954 add_ldflags -fsanitize=undefined
2955 case "$toolchain" in
2956 clang-usan)
2957 add_cflags -O1
2958 ;;
2959 esac
2960 ;;
2961 valgrind-*)
2962 target_exec_default="valgrind"
2963 case "$toolchain" in
2964 valgrind-massif)
2965 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2966 ;;
2967 valgrind-memcheck)
2968 target_exec_args="--track-origins=yes --leak-check=full"
2969 ;;
2970 esac
2971 ;;
2972 msvc)
2973 # Check whether the current MSVC version needs the C99 converter.
2974 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2975 # support enough of C99 to build libav. Default to the new
2976 # behaviour if the regexp was unable to match anything, since this
2977 # successfully parses the version number of existing supported
2978 # versions that require the converter (MSVC 2010 and 2012).
2979 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2980 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2981 cc_default="cl"
2982 else
2983 cc_default="c99wrap cl"
2984 fi
2985 ld_default="$source_path/compat/windows/mslink"
2986 nm_default="dumpbin -symbols"
2987 ar_default="lib"
2988 case "$arch" in
2989 arm*)
2990 as_default="armasm"
2991 ;;
2992 esac
2993 target_os_default="win32"
2994 # Use a relative path for TMPDIR. This makes sure all the
2995 # ffconf temp files are written with a relative path, avoiding
2996 # issues with msys/win32 path conversion for MSVC parameters
2997 # such as -Fo<file> or -out:<file>.
2998 TMPDIR=.
2999 ;;
3000 icl)
3001 cc_default="icl"
3002 ld_default="xilink"
3003 nm_default="dumpbin -symbols"
3004 ar_default="xilib"
3005 target_os_default="win32"
3006 TMPDIR=.
3007 ;;
3008 gcov)
3009 add_cflags -fprofile-arcs -ftest-coverage
3010 add_ldflags -fprofile-arcs -ftest-coverage
3011 ;;
3012 llvm-cov)
3013 add_cflags -fprofile-arcs -ftest-coverage
3014 add_ldflags --coverage
3015 ;;
3016 hardened)
3017 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3018 add_cflags -fno-strict-overflow -fstack-protector-all
3019 add_ldflags -Wl,-z,relro -Wl,-z,now
3020 ;;
3021 ?*)
3022 die "Unknown toolchain $toolchain"
3023 ;;
3024 esac
3025
3026 test -n "$cross_prefix" && enable cross_compile
3027
3028 if enabled cross_compile; then
3029 test -n "$arch" && test -n "$target_os" ||
3030 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3031 fi
3032
3033 ar_default="${cross_prefix}${ar_default}"
3034 cc_default="${cross_prefix}${cc_default}"
3035 objcc_default="${cross_prefix}${objcc_default}"
3036 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3037 nm_default="${cross_prefix}${nm_default}"
3038 pkg_config_default="${cross_prefix}${pkg_config_default}"
3039 ranlib="${cross_prefix}${ranlib}"
3040 strip="${cross_prefix}${strip}"
3041
3042 sysinclude_default="${sysroot}/usr/include"
3043
3044 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3045 enabled cross_compile || host_cc_default=$cc
3046 set_default host_cc
3047
3048 if ! $pkg_config --version >/dev/null 2>&1; then
3049 warn "$pkg_config not found, library detection may fail."
3050 pkg_config=false
3051 fi
3052
3053 exesuf() {
3054 case $1 in
3055 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3056 esac
3057 }
3058
3059 EXESUF=$(exesuf $target_os)
3060 HOSTEXESUF=$(exesuf $host_os)
3061
3062 # set temporary file name
3063 : ${TMPDIR:=$TEMPDIR}
3064 : ${TMPDIR:=$TMP}
3065 : ${TMPDIR:=/tmp}
3066
3067 if ! check_cmd mktemp -u XXXXXX; then
3068 # simple replacement for missing mktemp
3069 # NOT SAFE FOR GENERAL USE
3070 mktemp(){
3071 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3072 echo "$tmpname"
3073 mkdir "$tmpname"
3074 }
3075 fi
3076
3077 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3078 die "Unable to create temporary directory in $TMPDIR."
3079
3080 tmpfile(){
3081 tmp="${AVTMPDIR}/test"$2
3082 (set -C; exec > $tmp) 2> /dev/null ||
3083 die "Unable to create temporary file in $AVTMPDIR."
3084 eval $1=$tmp
3085 }
3086
3087 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3088 trap 'exit 2' INT
3089
3090 tmpfile TMPASM .asm
3091 tmpfile TMPC .c
3092 tmpfile TMPE $EXESUF
3093 tmpfile TMPH .h
3094 tmpfile TMPO .o
3095 tmpfile TMPS .S
3096 tmpfile TMPSH .sh
3097 tmpfile TMPV .ver
3098
3099 unset -f mktemp
3100
3101 chmod +x $TMPE
3102
3103 # make sure we can execute files in $TMPDIR
3104 cat > $TMPSH 2>> $logfile <<EOF
3105 #! /bin/sh
3106 EOF
3107 chmod +x $TMPSH >> $logfile 2>&1
3108 if ! $TMPSH >> $logfile 2>&1; then
3109 cat <<EOF
3110 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3111 variable to another directory and make sure that it is not mounted noexec.
3112 EOF
3113 die "Sanity test failed."
3114 fi
3115
3116 armasm_flags(){
3117 for flag; do
3118 case $flag in
3119 # Filter out MSVC cl.exe options from cflags that shouldn't
3120 # be passed to gas-preprocessor
3121 -M[TD]*) ;;
3122 *) echo $flag ;;
3123 esac
3124 done
3125 }
3126
3127 ccc_flags(){
3128 for flag; do
3129 case $flag in
3130 -std=c99) echo -c99 ;;
3131 -mcpu=*) echo -arch ${flag#*=} ;;
3132 -mieee) echo -ieee ;;
3133 -O*|-fast) echo $flag ;;
3134 -fno-math-errno) echo -assume nomath_errno ;;
3135 -g) echo -g3 ;;
3136 -Wall) echo -msg_enable level2 ;;
3137 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3138 -Wl,*) echo $flag ;;
3139 -f*|-W*) ;;
3140 *) echo $flag ;;
3141 esac
3142 done
3143 }
3144
3145 cparser_flags(){
3146 for flag; do
3147 case $flag in
3148 -Wno-switch) echo -Wno-switch-enum ;;
3149 -Wno-format-zero-length) ;;
3150 -Wdisabled-optimization) ;;
3151 -Wno-pointer-sign) echo -Wno-other ;;
3152 *) echo $flag ;;
3153 esac
3154 done
3155 }
3156
3157 msvc_common_flags(){
3158 for flag; do
3159 case $flag in
3160 # In addition to specifying certain flags under the compiler
3161 # specific filters, they must be specified here as well or else the
3162 # generic catch all at the bottom will print the original flag.
3163 -Wall) ;;
3164 -Wextra) ;;
3165 -std=c99) ;;
3166 # Common flags
3167 -fomit-frame-pointer) ;;
3168 -g) echo -Z7 ;;
3169 -fno-math-errno) ;;
3170 -fno-common) ;;
3171 -fno-signed-zeros) ;;
3172 -fPIC) ;;
3173 -mthumb) ;;
3174 -march=*) ;;
3175 -lz) echo zlib.lib ;;
3176 -lx264) echo libx264.lib ;;
3177 -l*) echo ${flag#-l}.lib ;;
3178 -L*) echo -libpath:${flag#-L} ;;
3179 *) echo $flag ;;
3180 esac
3181 done
3182 }
3183
3184 msvc_flags(){
3185 msvc_common_flags "$@"
3186 for flag; do
3187 case $flag in
3188 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3189 -wd4554 ;;
3190 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3191 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3192 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3193 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3194 esac
3195 done
3196 }
3197
3198 icl_flags(){
3199 msvc_common_flags "$@"
3200 for flag; do
3201 case $flag in
3202 # Despite what Intel's documentation says -Wall, which is supported
3203 # on Windows, does enable remarks so disable them here.
3204 -Wall) echo $flag -Qdiag-disable:remark ;;
3205 -std=c99) echo -Qstd=c99 ;;
3206 esac
3207 done
3208 }
3209
3210 pgi_flags(){
3211 for flag; do
3212 case $flag in
3213 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3214 -fomit-frame-pointer) echo -Mnoframe ;;
3215 -g) echo -gopt ;;
3216 *) echo $flag ;;
3217 esac
3218 done
3219 }
3220
3221 suncc_flags(){
3222 for flag; do
3223 case $flag in
3224 -march=*|-mcpu=*)
3225 case "${flag#*=}" in
3226 native) echo -xtarget=native ;;
3227 v9|niagara) echo -xarch=sparc ;;
3228 ultrasparc) echo -xarch=sparcvis ;;
3229 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3230 i586|pentium) echo -xchip=pentium ;;
3231 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3232 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3233 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3234 pentium4*) echo -xtarget=pentium4 ;;
3235 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3236 *-sse3) echo -xarch=sse3 ;;
3237 core2) echo -xarch=ssse3 -xchip=core2 ;;
3238 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3239 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3240 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3241 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3242 k8|opteron|athlon64|athlon-fx)
3243 echo -xarch=sse2a ;;
3244 athlon*) echo -xarch=pentium_proa ;;
3245 esac
3246 ;;
3247 -std=c99) echo -xc99 ;;
3248 -fomit-frame-pointer) echo -xregs=frameptr ;;
3249 -fPIC) echo -KPIC -xcode=pic32 ;;
3250 -W*,*) echo $flag ;;
3251 -f*-*|-W*|-mimpure-text) ;;
3252 -shared) echo -G ;;
3253 *) echo $flag ;;
3254 esac
3255 done
3256 }
3257
3258 tms470_flags(){
3259 for flag; do
3260 case $flag in
3261 -march=*|-mcpu=*)
3262 case "${flag#*=}" in
3263 armv7-a|cortex-a*) echo -mv=7a8 ;;
3264 armv7-r|cortex-r*) echo -mv=7r4 ;;
3265 armv7-m|cortex-m*) echo -mv=7m3 ;;
3266 armv6*|arm11*) echo -mv=6 ;;
3267 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3268 echo -mv=5e ;;
3269 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3270 esac
3271 ;;
3272 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3273 -mfpu=vfp) echo --float_support=vfpv2 ;;
3274 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3275 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3276 -msoft-float) echo --float_support=vfplib ;;
3277 -O[0-3]|-mf=*) echo $flag ;;
3278 -g) echo -g -mn ;;
3279 -pds=*) echo $flag ;;
3280 -D*|-I*) echo $flag ;;
3281 --gcc|--abi=*) echo $flag ;;
3282 -me) echo $flag ;;
3283 esac
3284 done
3285 }
3286
3287 probe_cc(){
3288 pfx=$1
3289 _cc=$2
3290
3291 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3292 unset _ld_o _ldflags _ld_lib _ld_path
3293 unset _depflags _DEPCMD _DEPFLAGS
3294 _flags_filter=echo
3295
3296 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3297 _type=llvm_gcc
3298 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3299 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3300 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3301 _cflags_speed='-O3'
3302 _cflags_size='-Os'
3303 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3304 _type=gcc
3305 gcc_version=$($_cc --version | head -n1)
3306 gcc_basever=$($_cc -dumpversion)
3307 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3308 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3309 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3310 if ! $_cc -dumpversion | grep -q '^2\.'; then
3311 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3312 fi
3313 _cflags_speed='-O3'
3314 _cflags_size='-Os'
3315 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3316 _type=icc
3317 _ident=$($_cc --version | head -n1)
3318 _depflags='-MMD'
3319 _cflags_speed='-O3'
3320 _cflags_size='-Os'
3321 _cflags_noopt='-O1'
3322 elif $_cc -v 2>&1 | grep -q xlc; then
3323 _type=xlc
3324 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3325 _cflags_speed='-O5'
3326 _cflags_size='-O5 -qcompact'
3327 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3328 _type=ccc
3329 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3330 _DEPFLAGS='-M'
3331 _cflags_speed='-fast'
3332 _cflags_size='-O1'
3333 _flags_filter=ccc_flags
3334 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3335 test -d "$sysroot" || die "No valid sysroot specified."
3336 _type=armcc
3337 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3338 armcc_conf="$PWD/armcc.conf"
3339 $_cc --arm_linux_configure \
3340 --arm_linux_config_file="$armcc_conf" \
3341 --configure_sysroot="$sysroot" \
3342 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3343 die "Error creating armcc configuration file."
3344 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3345 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3346 as_default="${cross_prefix}gcc"
3347 _depflags='-MMD'
3348 _cflags_speed='-O3'
3349 _cflags_size='-Os'
3350 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3351 _type=tms470
3352 _ident=$($_cc -version | head -n1 | tr -s ' ')
3353 _flags='--gcc --abi=eabi -me'
3354 _cc_e='-ppl -fe=$@'
3355 _cc_o='-fe=$@'
3356 _depflags='-ppa -ppd=$(@:.o=.d)'
3357 _cflags_speed='-O3 -mf=5'
3358 _cflags_size='-O3 -mf=2'
3359 _flags_filter=tms470_flags
3360 elif $_cc -v 2>&1 | grep -q clang; then
3361 _type=clang
3362 _ident=$($_cc --version 2>/dev/null | head -n1)
3363 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3364 _cflags_speed='-O3'
3365 _cflags_size='-Os'
3366 elif $_cc -V 2>&1 | grep -q Sun; then
3367 _type=suncc
3368 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3369 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3370 _DEPFLAGS='-xM1 -xc99'
3371 _ldflags='-std=c99'
3372 _cflags_speed='-O5'
3373 _cflags_size='-O5 -xspace'
3374 _flags_filter=suncc_flags
3375 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3376 _type=pathscale
3377 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3378 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3379 _cflags_speed='-O2'
3380 _cflags_size='-Os'
3381 _flags_filter='filter_out -Wdisabled-optimization'
3382 elif $_cc -v 2>&1 | grep -q Open64; then
3383 _type=open64
3384 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3385 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3386 _cflags_speed='-O2'
3387 _cflags_size='-Os'
3388 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3389 elif $_cc -V 2>&1 | grep -q Portland; then
3390 _type=pgi
3391 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3392 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3393 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3394 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3395 _cflags_noopt="-O1"
3396 _flags_filter=pgi_flags
3397 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3398 _type=armasm
3399 _ident=$($_cc | head -n1)
3400 # 4509: "This form of conditional instruction is deprecated"
3401 _flags="-nologo -ignore 4509"
3402 _flags_filter=armasm_flags
3403 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3404 _type=msvc
3405 _ident=$($_cc 2>&1 | head -n1)
3406 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3407 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3408 _cflags_speed="-O2"
3409 _cflags_size="-O1"
3410 _cflags_noopt="-O1"
3411 if $_cc -nologo- 2>&1 | grep -q Linker; then
3412 _ld_o='-out:$@'
3413 else
3414 _ld_o='-Fe$@'
3415 fi
3416 _cc_o='-Fo$@'
3417 _cc_e='-P -Fi$@'
3418 _flags_filter=msvc_flags
3419 _ld_lib='lib%.a'
3420 _ld_path='-libpath:'
3421 _flags='-nologo'
3422 elif $_cc 2>&1 | grep -q Intel; then
3423 _type=icl
3424 _ident=$($_cc 2>&1 | head -n1)
3425 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3426 # Not only is O3 broken on 13.x+ but it is slower on all previous
3427 # versions (tested) as well.
3428 _cflags_speed="-O2"
3429 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3430 if $_cc 2>&1 | grep -q Linker; then
3431 _ld_o='-out:$@'
3432 else
3433 _ld_o='-Fe$@'
3434 fi
3435 _cc_o='-Fo$@'
3436 _cc_e='-P'
3437 _flags_filter=icl_flags
3438 _ld_lib='lib%.a'
3439 _ld_path='-libpath:'
3440 # -Qdiag-error to make icl error when seeing certain unknown arguments
3441 _flags='-nologo -Qdiag-error:4044,10157'
3442 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3443 # with MSVC which enables it by default.
3444 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3445 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3446 # lld can emulate multiple different linkers; in ms link.exe mode,
3447 # the -? parameter gives the help output which contains an identifyable
3448 # string, while it gives an error in other modes.
3449 _type=lld-link
3450 # The link.exe mode doesn't have a switch for getting the version,
3451 # but we can force it back to gnu mode and get the version from there.
3452 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3453 _ld_o='-out:$@'
3454 _flags_filter=msvc_flags
3455 _ld_lib='lib%.a'
3456 _ld_path='-libpath:'
3457 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3458 _type=cparser
3459 _ident=$($_cc --version | head -n1)
3460 _depflags='-MMD'
3461 _cflags_speed='-O4'
3462 _cflags_size='-O2'
3463 _flags_filter=cparser_flags
3464 fi
3465
3466 eval ${pfx}_type=\$_type
3467 eval ${pfx}_ident=\$_ident
3468 }
3469
3470 set_ccvars(){
3471 eval ${1}_C=\${_cc_c-\${${1}_C}}
3472 eval ${1}_E=\${_cc_e-\${${1}_E}}
3473 eval ${1}_O=\${_cc_o-\${${1}_O}}
3474
3475 if [ -n "$_depflags" ]; then
3476 eval ${1}_DEPFLAGS=\$_depflags
3477 else
3478 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3479 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3480 eval DEP${1}FLAGS=\$_flags
3481 fi
3482 }
3483
3484 probe_cc cc "$cc"
3485 cflags_filter=$_flags_filter
3486 cflags_speed=$_cflags_speed
3487 cflags_size=$_cflags_size
3488 cflags_noopt=$_cflags_noopt
3489 add_cflags $_flags $_cflags
3490 cc_ldflags=$_ldflags
3491 set_ccvars CC
3492
3493 probe_cc hostcc "$host_cc"
3494 host_cflags_filter=$_flags_filter
3495 host_cflags_speed=$_cflags_speed
3496 add_host_cflags $_flags $_cflags
3497 set_ccvars HOSTCC
3498
3499 test -n "$cc_type" && enable $cc_type ||
3500 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3501
3502 : ${as_default:=$cc}
3503 : ${objcc_default:=$cc}
3504 : ${dep_cc_default:=$cc}
3505 : ${ld_default:=$cc}
3506 : ${host_ld_default:=$host_cc}
3507 set_default ar as objcc dep_cc ld host_ld
3508
3509 probe_cc as "$as"
3510 asflags_filter=$_flags_filter
3511 add_asflags $_flags $_cflags
3512 set_ccvars AS
3513
3514 probe_cc objcc "$objcc"
3515 objcflags_filter=$_flags_filter
3516 add_objcflags $_flags $_cflags
3517 set_ccvars OBJC
3518
3519 probe_cc ld "$ld"
3520 ldflags_filter=$_flags_filter
3521 add_ldflags $_flags $_ldflags
3522 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3523 LD_O=${_ld_o-$LD_O}
3524 LD_LIB=${_ld_lib-$LD_LIB}
3525 LD_PATH=${_ld_path-$LD_PATH}
3526
3527 probe_cc hostld "$host_ld"
3528 host_ldflags_filter=$_flags_filter
3529 add_host_ldflags $_flags $_ldflags
3530 HOSTLD_O=${_ld_o-$HOSTLD_O}
3531
3532 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3533 probe_cc depcc "$dep_cc"
3534 CCDEP=${_DEPCMD:-$DEPCMD}
3535 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3536 DEPCCFLAGS=$_flags
3537 fi
3538
3539 if $ar 2>&1 | grep -q Microsoft; then
3540 arflags="-nologo"
3541 ar_o='-out:$@'
3542 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3543 arflags="rq"
3544 ar_o='$@'
3545 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3546 arflags='-Xany -r -c'
3547 ar_o='$@'
3548 else
3549 arflags="rc"
3550 ar_o='$@'
3551 fi
3552
3553 add_cflags $extra_cflags
3554 add_objcflags $extra_objcflags
3555 add_asflags $extra_cflags
3556
3557 if test -n "$sysroot"; then
3558 case "$cc_type" in
3559 gcc|llvm_gcc|clang)
3560 add_cppflags --sysroot="$sysroot"
3561 add_ldflags --sysroot="$sysroot"
3562 ;;
3563 tms470)
3564 add_cppflags -I"$sysinclude"
3565 add_ldflags --sysroot="$sysroot"
3566 ;;
3567 esac
3568 fi
3569
3570 if test "$cpu" = host; then
3571 enabled cross_compile &&
3572 die "--cpu=host makes no sense when cross-compiling."
3573
3574 case "$cc_type" in
3575 gcc|llvm_gcc)
3576 check_native(){
3577 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3578 sed -n "/cc1.*$1=/{
3579 s/.*$1=\\([^ ]*\\).*/\\1/
3580 p
3581 q
3582 }" $TMPE
3583 }
3584 cpu=$(check_native -march || check_native -mcpu)
3585 ;;
3586 esac
3587
3588 test "${cpu:-host}" = host &&
3589 die "--cpu=host not supported with compiler $cc"
3590 fi
3591
3592 # Deal with common $arch aliases
3593 case "$arch" in
3594 aarch64|arm64)
3595 arch="aarch64"
3596 ;;
3597 arm*)
3598 arch="arm"
3599 ;;
3600 mips*|IP*)
3601 case "$arch" in
3602 *el)
3603 add_cppflags -EL
3604 add_ldflags -EL
3605 ;;
3606 *eb)
3607 add_cppflags -EB
3608 add_ldflags -EB
3609 ;;
3610 esac
3611 arch="mips"
3612 ;;
3613 parisc*|hppa*)
3614 arch="parisc"
3615 ;;
3616 "Power Macintosh"|ppc*|powerpc*)
3617 arch="ppc"
3618 ;;
3619 s390|s390x)
3620 arch="s390"
3621 ;;
3622 sh4|sh)
3623 arch="sh4"
3624 ;;
3625 sun4u|sparc*)
3626 arch="sparc"
3627 ;;
3628 tilegx|tile-gx)
3629 arch="tilegx"
3630 ;;
3631 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3632 arch="x86"
3633 ;;
3634 esac
3635
3636 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3637 enable $arch
3638
3639 # Add processor-specific flags
3640 if enabled aarch64; then
3641
3642 case $cpu in
3643 armv*)
3644 cpuflags="-march=$cpu"
3645 ;;
3646 *)
3647 cpuflags="-mcpu=$cpu"
3648 ;;
3649 esac
3650
3651 elif enabled alpha; then
3652
3653 cpuflags="-mcpu=$cpu"
3654
3655 elif enabled arm; then
3656
3657 check_arm_arch() {
3658 check_cpp_condition stddef.h \
3659 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3660 $cpuflags
3661 }
3662
3663 probe_arm_arch() {
3664 if check_arm_arch 4; then echo armv4
3665 elif check_arm_arch 4T; then echo armv4t
3666 elif check_arm_arch 5; then echo armv5
3667 elif check_arm_arch 5E; then echo armv5e
3668 elif check_arm_arch 5T; then echo armv5t
3669 elif check_arm_arch 5TE; then echo armv5te
3670 elif check_arm_arch 5TEJ; then echo armv5te
3671 elif check_arm_arch 6; then echo armv6
3672 elif check_arm_arch 6J; then echo armv6j
3673 elif check_arm_arch 6K; then echo armv6k
3674 elif check_arm_arch 6Z; then echo armv6z
3675 elif check_arm_arch 6ZK; then echo armv6zk
3676 elif check_arm_arch 6T2; then echo armv6t2
3677 elif check_arm_arch 7; then echo armv7
3678 elif check_arm_arch 7A 7_A; then echo armv7-a
3679 elif check_arm_arch 7S; then echo armv7-a
3680 elif check_arm_arch 7R 7_R; then echo armv7-r
3681 elif check_arm_arch 7M 7_M; then echo armv7-m
3682 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3683 elif check_arm_arch 8A 8_A; then echo armv8-a
3684 fi
3685 }
3686
3687 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3688
3689 case $cpu in
3690 armv*)
3691 cpuflags="-march=$cpu"
3692 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3693 ;;
3694 *)
3695 cpuflags="-mcpu=$cpu"
3696 case $cpu in
3697 cortex-a*) subarch=armv7a ;;
3698 cortex-r*) subarch=armv7r ;;
3699 cortex-m*) enable thumb; subarch=armv7m ;;
3700 arm11*) subarch=armv6 ;;
3701 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3702 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3703 *) subarch=$(probe_arm_arch) ;;
3704 esac
3705 ;;
3706 esac
3707
3708 case "$subarch" in
3709 armv5t*) enable fast_clz ;;
3710 armv[6-8]*) enable fast_clz fast_unaligned ;;
3711 esac
3712
3713 elif enabled avr32; then
3714
3715 case $cpu in
3716 ap7[02]0[0-2])
3717 subarch="avr32_ap"
3718 cpuflags="-mpart=$cpu"
3719 ;;
3720 ap)
3721 subarch="avr32_ap"
3722 cpuflags="-march=$cpu"
3723 ;;
3724 uc3[ab]*)
3725 subarch="avr32_uc"
3726 cpuflags="-mcpu=$cpu"
3727 ;;
3728 uc)
3729 subarch="avr32_uc"
3730 cpuflags="-march=$cpu"
3731 ;;
3732 esac
3733
3734 elif enabled bfin; then
3735
3736 cpuflags="-mcpu=$cpu"
3737
3738 elif enabled mips; then
3739
3740 cpuflags="-march=$cpu"
3741
3742 elif enabled ppc; then
3743
3744 disable ldbrx
3745
3746 case $(tolower $cpu) in
3747 601|ppc601|powerpc601)
3748 cpuflags="-mcpu=601"
3749 disable altivec
3750 ;;
3751 603*|ppc603*|powerpc603*)
3752 cpuflags="-mcpu=603"
3753 disable altivec
3754 ;;
3755 604*|ppc604*|powerpc604*)
3756 cpuflags="-mcpu=604"
3757 disable altivec
3758 ;;
3759 g3|75*|ppc75*|powerpc75*)
3760 cpuflags="-mcpu=750"
3761 disable altivec
3762 ;;
3763 g4|745*|ppc745*|powerpc745*)
3764 cpuflags="-mcpu=7450"
3765 disable vsx
3766 ;;
3767 74*|ppc74*|powerpc74*)
3768 cpuflags="-mcpu=7400"
3769 disable vsx
3770 ;;
3771 g5|970|ppc970|powerpc970)
3772 cpuflags="-mcpu=970"
3773 disable vsx
3774 ;;
3775 power[3-6]*)
3776 cpuflags="-mcpu=$cpu"
3777 disable vsx
3778 ;;
3779 power[7-8]*)
3780 cpuflags="-mcpu=$cpu"
3781 enable ldbrx
3782 ;;
3783 cell)
3784 cpuflags="-mcpu=cell"
3785 enable ldbrx
3786 disable vsx
3787 ;;
3788 e500mc)
3789 cpuflags="-mcpu=e500mc"
3790 disable altivec
3791 ;;
3792 e500v2)
3793 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3794 disable altivec
3795 disable dcbzl
3796 ;;
3797 e500)
3798 cpuflags="-mcpu=8540 -mhard-float"
3799 disable altivec
3800 disable dcbzl
3801 ;;
3802 esac
3803
3804 elif enabled sparc; then
3805
3806 case $cpu in
3807 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3808 cpuflags="-mcpu=$cpu"
3809 ;;
3810 ultrasparc*|niagara[234])
3811 cpuflags="-mcpu=$cpu"
3812 ;;
3813 esac
3814
3815 elif enabled x86; then
3816
3817 case $cpu in
3818 i[345]86|pentium)
3819 cpuflags="-march=$cpu"
3820 disable i686
3821 disable mmx
3822 ;;
3823 # targets that do NOT support nopl and conditional mov (cmov)
3824 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3825 cpuflags="-march=$cpu"
3826 disable i686
3827 ;;
3828 # targets that do support nopl and conditional mov (cmov)
3829 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3830 cpuflags="-march=$cpu"
3831 enable i686
3832 enable fast_cmov
3833 ;;
3834 # targets that do support conditional mov but on which it's slow
3835 pentium4|pentium4m|prescott|nocona)
3836 cpuflags="-march=$cpu"
3837 enable i686
3838 disable fast_cmov
3839 ;;
3840 esac
3841
3842 fi
3843
3844 if [ "$cpu" != generic ]; then
3845 add_cflags $cpuflags
3846 add_asflags $cpuflags
3847 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3848 fi
3849
3850 # compiler sanity check
3851 check_exec <<EOF
3852 int main(void){ return 0; }
3853 EOF
3854 if test "$?" != 0; then
3855 echo "$cc is unable to create an executable file."
3856 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3857 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3858 echo "Only do this if you know what cross compiling means."
3859 fi
3860 die "C compiler test failed."
3861 fi
3862
3863 add_cppflags -D_ISOC99_SOURCE
3864
3865 # some compilers silently accept -std=c11, so we also need to check that the
3866 # version macro is defined properly
3867 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3868 add_cflags -std=c11 ||
3869 check_cflags -std=c99
3870
3871 check_cppflags -D_FILE_OFFSET_BITS=64
3872 check_cppflags -D_LARGEFILE_SOURCE
3873
3874 add_host_cppflags -D_ISOC99_SOURCE
3875 check_host_cflags -std=c99
3876 check_host_cflags -Wall
3877 check_host_cflags $host_cflags_speed
3878
3879 check_64bit(){
3880 arch32=$1
3881 arch64=$2
3882 expr=$3
3883 check_code cc "" "int test[2*($expr) - 1]" &&
3884 subarch=$arch64 || subarch=$arch32
3885 }
3886
3887 case "$arch" in
3888 aarch64|alpha|ia64)
3889 spic=$shared
3890 ;;
3891 mips)
3892 check_64bit mips mips64 '_MIPS_SIM > 1'
3893 spic=$shared
3894 ;;
3895 parisc)
3896 check_64bit parisc parisc64 'sizeof(void *) > 4'
3897 spic=$shared
3898 ;;
3899 ppc)
3900 check_64bit ppc ppc64 'sizeof(void *) > 4'
3901 spic=$shared
3902 ;;
3903 s390)
3904 check_64bit s390 s390x 'sizeof(void *) > 4'
3905 spic=$shared
3906 ;;
3907 sparc)
3908 check_64bit sparc sparc64 'sizeof(void *) > 4'
3909 spic=$shared
3910 ;;
3911 x86)
3912 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3913 if test "$subarch" = "x86_64"; then
3914 spic=$shared
3915 fi
3916 ;;
3917 esac
3918
3919 enable $subarch
3920 enabled spic && enable_weak pic
3921
3922 enabled x86_64 && objformat=elf64 || objformat="elf32"
3923
3924 # OS specific
3925 case $target_os in
3926 aix)
3927 SHFLAGS=-shared
3928 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3929 enabled shared && add_ldflags -Wl,-brtl
3930 ;;
3931 android)
3932 disable symver
3933 enable section_data_rel_ro
3934 SLIB_INSTALL_NAME='$(SLIBNAME)'
3935 SLIB_INSTALL_LINKS=
3936 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3937 ;;
3938 haiku)
3939 prefix_default="/boot/common"
3940 network_extralibs="-lnetwork"
3941 host_extralibs=
3942 ;;
3943 sunos)
3944 SHFLAGS='-shared -Wl,-h,$$(@F)'
3945 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3946 network_extralibs="-lsocket -lnsl"
3947 # When using suncc to build, the Solaris linker will mark
3948 # an executable with each instruction set encountered by
3949 # the Solaris assembler. As our libraries contain their own
3950 # guards for processor-specific code, instead suppress
3951 # generation of the HWCAPS ELF section on Solaris x86 only.
3952 enabled_all suncc x86 &&
3953 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3954 add_ldflags -Wl,-M,mapfile
3955 nm_default='nm -P -g'
3956 version_script='-M'
3957 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3958 ;;
3959 netbsd)
3960 disable symver
3961 oss_indev_extralibs="-lossaudio"
3962 oss_outdev_extralibs="-lossaudio"
3963 ;;
3964 openbsd|bitrig)
3965 disable symver
3966 SHFLAGS='-shared'
3967 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3968 SLIB_INSTALL_LINKS=
3969 oss_indev_extralibs="-lossaudio"
3970 oss_outdev_extralibs="-lossaudio"
3971 ;;
3972 dragonfly)
3973 disable symver
3974 ;;
3975 freebsd)
3976 ;;
3977 bsd/os)
3978 add_extralibs -lpoll -lgnugetopt
3979 ;;
3980 darwin)
3981 enabled ppc && add_asflags -force_cpusubtype_ALL
3982 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3983 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3984 add_ldflags -Wl,-dynamic,-search_paths_first
3985 check_cflags -Werror=partial-availability
3986 SLIBSUF=".dylib"
3987 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3988 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3989 enabled x86_64 && objformat="macho64" || objformat="macho32"
3990 enabled_any pic shared ||
3991 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3992 check_header dispatch/dispatch.h &&
3993 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3994 if test -n "$sysroot"; then
3995 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3996 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3997 fi
3998 ;;
3999 msys*)
4000 die "Native MSYS builds are discouraged, please use the MINGW environment."
4001 ;;
4002 mingw32*|mingw64*)
4003 if test $target_os = "mingw32ce"; then
4004 disable network
4005 else
4006 target_os=mingw32
4007 fi
4008 LIBTARGET=i386
4009 if enabled x86_64; then
4010 LIBTARGET="i386:x86-64"
4011 elif enabled arm; then
4012 LIBTARGET=arm-wince
4013 fi
4014 check_ldflags -Wl,--nxcompat
4015 check_ldflags -Wl,--dynamicbase
4016 shlibdir_default="$bindir_default"
4017 SLIBPREF=""
4018 SLIBSUF=".dll"
4019 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4020 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4021 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4022 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4023 SLIB_INSTALL_LINKS=
4024 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4025 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4026 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4027 enabled x86_64 && objformat="win64" || objformat="win32"
4028 dlltool="${cross_prefix}dlltool"
4029 ranlib=:
4030 enable dos_paths
4031 ;;
4032 win32|win64)
4033 disable symver
4034 if enabled shared; then
4035 # Link to the import library instead of the normal static library
4036 # for shared libs.
4037 LD_LIB='%.lib'
4038 # Cannot build both shared and static libs with MSVC or icl.
4039 disable static
4040 fi
4041 shlibdir_default="$bindir_default"
4042 SLIBPREF=""
4043 SLIBSUF=".dll"
4044 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4045 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4046 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4047 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4048 SLIB_INSTALL_LINKS=
4049 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4050 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4051 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4052 enabled x86_64 && objformat="win64" || objformat="win32"
4053 ranlib=:
4054 enable dos_paths
4055 ;;
4056 cygwin*)
4057 target_os=cygwin
4058 shlibdir_default="$bindir_default"
4059 SLIBPREF="cyg"
4060 SLIBSUF=".dll"
4061 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4062 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4063 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4064 SLIB_INSTALL_LINKS=
4065 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4066 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4067 enabled x86_64 && objformat="win64" || objformat="win32"
4068 enable dos_paths
4069 ;;
4070 *-dos|freedos|opendos)
4071 network_extralibs="-lsocket"
4072 objformat="coff"
4073 enable dos_paths
4074 add_cppflags -U__STRICT_ANSI__
4075 ;;
4076 linux)
4077 enable dv1394
4078 enable section_data_rel_ro
4079 ;;
4080 irix*)
4081 target_os=irix
4082 ranlib="echo ignoring ranlib"
4083 ;;
4084 os/2*)
4085 ln_s="cp -f"
4086 objformat="aout"
4087 add_cppflags -D_GNU_SOURCE
4088 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4089 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4090 LIBSUF="_s.a"
4091 SLIBPREF=""
4092 SLIBSUF=".dll"
4093 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4094 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4095 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4096 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4097 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4098 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4099 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4100 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4101 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4102 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4103 enable dos_paths
4104 ;;
4105 gnu/kfreebsd)
4106 add_cppflags -D_BSD_SOURCE
4107 ;;
4108 gnu)
4109 ;;
4110 qnx)
4111 add_cppflags -D_QNX_SOURCE
4112 network_extralibs="-lsocket"
4113 ;;
4114 symbian)
4115 SLIBSUF=".dll"
4116 enable dos_paths
4117 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4118 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4119 add_ldflags -Wl,--target1-abs,--no-undefined \
4120 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4121 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4122 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4123 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4124 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4125 ;;
4126 osf1)
4127 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4128 ;;
4129 minix)
4130 ;;
4131 none)
4132 ;;
4133 *)
4134 die "Unknown OS '$target_os'."
4135 ;;
4136 esac
4137
4138 # determine libc flavour
4139
4140 probe_libc(){
4141 pfx=$1
4142 pfx_no_=${pfx%_}
4143 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4144 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4145 eval ${pfx}libc_type=uclibc
4146 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4147 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4148 eval ${pfx}libc_type=glibc
4149 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4150 # MinGW headers can be installed on Cygwin, so check for newlib first.
4151 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4152 eval ${pfx}libc_type=newlib
4153 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4154 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4155 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4156 eval ${pfx}libc_type=mingw64
4157 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4158 eval test \$${pfx_no_}cc_type = "gcc" &&
4159 add_${pfx}cppflags -D__printf__=__gnu_printf__
4160 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4161 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4162 eval ${pfx}libc_type=mingw32
4163 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4164 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4165 die "ERROR: MinGW32 runtime version must be >= 3.15."
4166 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4167 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4168 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4169 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4170 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4171 eval test \$${pfx_no_}cc_type = "gcc" &&
4172 add_${pfx}cppflags -D__printf__=__gnu_printf__
4173 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4174 eval ${pfx}libc_type=msvcrt
4175 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4176 if [ "$pfx" = host_ ]; then
4177 add_host_cppflags -Dsnprintf=_snprintf
4178 else
4179 add_compat strtod.o strtod=avpriv_strtod
4180 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4181 _snprintf=avpriv_snprintf \
4182 vsnprintf=avpriv_vsnprintf
4183 fi
4184 fi
4185 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4186 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4187 # 0x601 by default unless something else is set by the user.
4188 # This can easily lead to us detecting functions only present
4189 # in such new versions and producing binaries requiring windows 7.0.
4190 # Therefore explicitly set the default to XP unless the user has
4191 # set something else on the command line.
4192 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4193 # family. For these cases, configure is free to use any functions
4194 # found in the SDK headers by default. (Alternatively, we could force
4195 # _WIN32_WINNT to 0x0602 in that case.)
4196 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4197 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4198 #ifdef WINAPI_FAMILY
4199 #include <winapifamily.h>
4200 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4201 #error not desktop
4202 #endif
4203 #endif
4204 EOF
4205 if [ "$pfx" = "" ]; then
4206 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4207 fi
4208 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4209 eval ${pfx}libc_type=klibc
4210 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4211 eval ${pfx}libc_type=bionic
4212 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4213 eval ${pfx}libc_type=solaris
4214 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4215 else
4216 eval ${pfx}libc_type=default
4217 add_${pfx}cppflags -D_DEFAULT_SOURCE
4218 fi
4219 }
4220
4221 probe_libc
4222 test -n "$libc_type" && enable libc_$libc_type
4223 probe_libc host_
4224 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4225
4226 # hacks for compiler/libc/os combinations
4227
4228 case $libc_type in
4229 bionic)
4230 add_compat strtod.o strtod=avpriv_strtod
4231 ;;
4232 glibc)
4233 if enabled tms470; then
4234 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4235 add_cppflags -D__USER_LABEL_PREFIX__=
4236 add_cppflags -D__builtin_memset=memset
4237 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4238 add_cflags -pds=48 # incompatible redefinition of macro
4239 elif enabled ccc; then
4240 add_ldflags -Wl,-z,now # calls to libots crash without this
4241 fi
4242 ;;
4243 esac
4244
4245 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4246 add_cppflags '-I\$(SRC_PATH)/compat/float'
4247
4248 esc(){
4249 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4250 }
4251
4252 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4253
4254 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4255
4256 set_default $PATHS_LIST
4257 set_default nm
4258
4259 # we need to build at least one lib type
4260 if ! enabled_any static shared; then
4261 cat <<EOF
4262 At least one library type must be built.
4263 Specify --enable-static to build the static libraries or --enable-shared to
4264 build the shared libraries as well. To only build the shared libraries specify
4265 --disable-static in addition to --enable-shared.
4266 EOF
4267 exit 1
4268 fi
4269
4270 disabled optimizations || check_cflags -fomit-frame-pointer
4271
4272 enable_weak_pic() {
4273 disabled pic && return
4274 enable pic
4275 add_cppflags -DPIC
4276 case "$target_os" in
4277 mingw*|cygwin*)
4278 ;;
4279 *)
4280 add_cflags -fPIC
4281 ;;
4282 esac
4283 add_asflags -fPIC
4284 }
4285
4286 enabled pic && enable_weak_pic
4287
4288 check_cc <<EOF || die "Symbol mangling check failed."
4289 int ff_extern;
4290 EOF
4291 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4292 extern_prefix=${sym%%ff_extern*}
4293
4294 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4295
4296 _restrict=
4297 for restrict_keyword in restrict __restrict__ __restrict; do
4298 check_cc <<EOF && _restrict=$restrict_keyword && break
4299 void foo(char * $restrict_keyword p);
4300 EOF
4301 done
4302
4303 check_cc <<EOF && enable pragma_deprecated
4304 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4305 EOF
4306
4307 check_cc <<EOF && enable attribute_packed
4308 struct { int x; } __attribute__((packed)) x;
4309 EOF
4310
4311 check_cc <<EOF && enable attribute_may_alias
4312 union { int x; } __attribute__((may_alias)) x;
4313 EOF
4314
4315 check_cc <<EOF || die "endian test failed"
4316 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4317 EOF
4318 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4319
4320 check_gas() {
4321 log "check_gas using '$as' as AS"
4322 # :vararg is used on aarch64, arm and ppc altivec
4323 check_as <<EOF || return 1
4324 .macro m n, y:vararg=0
4325 \n: .int \y
4326 .endm
4327 m x
4328 EOF
4329 # .altmacro is only used in arm asm
4330 ! enabled arm || check_as <<EOF || return 1
4331 .altmacro
4332 EOF
4333 enable gnu_as
4334 return 0
4335 }
4336
4337 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4338 nogas=:
4339 enabled_any arm aarch64 && nogas=die
4340 enabled_all ppc altivec && nogas=warn
4341 as_noop=-v
4342
4343 case $as_type in
4344 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4345 gcc) gaspp_as_type=gas ;;
4346 *) gaspp_as_type=$as_type ;;
4347 esac
4348
4349 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4350
4351 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4352 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4353
4354 if ! check_gas ; then
4355 as=${gas:=$as}
4356 check_gas || \
4357 $nogas "GNU assembler not found, install/update gas-preprocessor"
4358 fi
4359
4360 check_as <<EOF && enable as_func
4361 .func test
4362 .endfunc
4363 EOF
4364 fi
4365
4366 check_inline_asm inline_asm_labels '"1:\n"'
4367
4368 if enabled aarch64; then<