build: Remove check for gsm/gsm.h for libgsm
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-cuvid Nvidia CUVID video decode acceleration
241 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
243 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
244 --enable-libnpp Nvidia CUDA processing
245 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246 --enable-nvenc Nvidia video encoding
247 --enable-omx OpenMAX IL
248 --enable-omx-rpi OpenMAX IL for Raspberry Pi
249 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
250 --enable-vda Apple Video Decode Acceleration [auto]
251 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254 --arch=ARCH select architecture [$arch]
255 --cpu=CPU select the minimum required CPU (affects
256 instruction selection, may crash on older CPUs)
257 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
258 --enable-cross-compile assume a cross-compiler is used
259 --sysroot=PATH root of cross-build tree
260 --sysinclude=PATH location of cross-build system headers
261 --target-os=OS compiler targets OS [$target_os]
262 --target-exec=CMD command to run executables on target
263 --target-path=DIR path to view of build directory on target
264 --target-samples=DIR path to samples directory on target
265 --toolchain=NAME set tool defaults according to NAME
266 --nm=NM use nm tool
267 --ar=AR use archive tool AR [$ar_default]
268 --as=AS use assembler AS [$as_default]
269 --cc=CC use C compiler CC [$cc_default]
270 --objcc=OCC use ObjC compiler OCC [$cc_default]
271 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
272 --ld=LD use linker LD
273 --x86asmexe=X86ASM use x86 assembler X86ASM
274 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
275 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276 --host-cc=HOSTCC use host C compiler HOSTCC
277 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
278 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279 --host-ld=HOSTLD use host linker HOSTLD
280 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
281 --host-libs=HLIBS use libs HLIBS when linking for host
282 --host-os=OS compiler host OS [$target_os]
283 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
284 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
285 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288 --extra-libs=ELIBS add ELIBS [$ELIBS]
289 --extra-version=STRING version string suffix []
290 --optflags=OPTFLAGS override optimization-related compiler flags
291 --enable-pic build position-independent code
292 --enable-thumb compile for Thumb instruction set
293 --enable-lto use link-time optimization
294 --env="ENV=override" override the environment variables
295
296 Advanced options (experts only):
297 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
298 --custom-allocator=NAME use a supported custom allocator
299 --disable-symver disable symbol versioning
300 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301 --disable-safe-bitstream-reader
302 disable buffer boundary checking in bitreaders
303 (faster, but may crash)
304 --enable-sram allow use of on-chip SRAM
305
306 Optimization options (experts only):
307 --disable-asm disable all assembly optimizations
308 --disable-altivec disable AltiVec optimizations
309 --disable-vsx disable VSX optimizations
310 --disable-power8 disable POWER8 optimizations
311 --disable-amd3dnow disable 3DNow! optimizations
312 --disable-amd3dnowext disable 3DNow! extended optimizations
313 --disable-mmx disable MMX optimizations
314 --disable-mmxext disable MMXEXT optimizations
315 --disable-sse disable SSE optimizations
316 --disable-sse2 disable SSE2 optimizations
317 --disable-sse3 disable SSE3 optimizations
318 --disable-ssse3 disable SSSE3 optimizations
319 --disable-sse4 disable SSE4 optimizations
320 --disable-sse42 disable SSE4.2 optimizations
321 --disable-avx disable AVX optimizations
322 --disable-xop disable XOP optimizations
323 --disable-fma3 disable FMA3 optimizations
324 --disable-fma4 disable FMA4 optimizations
325 --disable-avx2 disable AVX2 optimizations
326 --disable-armv5te disable armv5te optimizations
327 --disable-armv6 disable armv6 optimizations
328 --disable-armv6t2 disable armv6t2 optimizations
329 --disable-vfp disable VFP optimizations
330 --disable-neon disable NEON optimizations
331 --disable-inline-asm disable use of inline assembly
332 --disable-x86asm disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335 --disable-debug disable debugging symbols
336 --enable-debug=LEVEL set the debug level [$debuglevel]
337 --disable-optimizations disable compiler optimizations
338 --enable-extra-warnings enable more compiler warnings
339 --samples=PATH location of test samples for FATE, if not set use
340 \$LIBAV_SAMPLES at make invocation time.
341 --enable-neon-clobber-test check NEON registers for clobbering (should be
342 used only for debugging purposes)
343 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344 should be used only for debugging purposes)
345 --enable-random randomly enable/disable components
346 --disable-random
347 --enable-random=LIST randomly enable/disable specific components or
348 --disable-random=LIST component groups. LIST is a comma-separated list
349 of NAME[:PROB] entries where NAME is a component
350 (group) and PROB the probability associated with
351 NAME (default 0.5).
352 --random-seed=VALUE seed value for --enable/disable-random
353 --disable-valgrind-backtrace do not print a backtrace under Valgrind
354 (only applies to --disable-optimizations builds)
355 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
356 in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360 exit 0
361 }
362
363 quotes='""'
364
365 log(){
366 echo "$@" >> $logfile
367 }
368
369 log_file(){
370 log BEGIN $1
371 i=1
372 while read line; do
373 printf '%5s %s\n' "${i}" "${line}"
374 i=$(($i+1))
375 done < $1 >> $logfile
376 log END $1
377 }
378
379 echolog(){
380 log "$@"
381 echo "$@"
382 }
383
384 warn(){
385 log "WARNING: $*"
386 WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390 echolog "$@"
391 cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git. If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397 if disabled logging; then
398 cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402 else
403 cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407 fi
408 exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421 echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425 v=$(echo "$1" | sed "s/'/'\\\\''/g")
426 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427 echo "$v"
428 }
429
430 cleanws(){
431 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
432 }
433
434 filter(){
435 pat=$1
436 shift
437 for v; do
438 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439 done
440 }
441
442 filter_out(){
443 pat=$1
444 shift
445 for v; do
446 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447 done
448 }
449
450 map(){
451 m=$1
452 shift
453 for v; do eval $m; done
454 }
455
456 add_suffix(){
457 suffix=$1
458 shift
459 for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463 value=$1
464 shift
465 for var in $*; do
466 eval $var=$value
467 done
468 }
469
470 set_weak(){
471 value=$1
472 shift
473 for var; do
474 eval : \${$var:=$value}
475 done
476 }
477
478 sanitize_var_name(){
479 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483 var=$1
484 shift
485 eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489 eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:=0}
495 eval ${pvar}_${level}="\$$pvar"
496 eval ${pvar}_level=$(($level+1))
497 done
498 }
499
500 popvar(){
501 for pvar in $*; do
502 eval level=\${${pvar}_level:-0}
503 test $level = 0 && continue
504 eval level=$(($level-1))
505 eval $pvar="\${${pvar}_${level}}"
506 eval ${pvar}_level=$level
507 eval unset ${pvar}_${level}
508 done
509 }
510
511 enable(){
512 set_all yes $*
513 }
514
515 disable(){
516 set_all no $*
517 }
518
519 enable_weak(){
520 set_weak yes $*
521 }
522
523 disable_weak(){
524 set_weak no $*
525 }
526
527 enable_sanitized(){
528 for var; do
529 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530 done
531 }
532
533 disable_sanitized(){
534 for var; do
535 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536 done
537 }
538
539 do_enable_deep(){
540 for var; do
541 enabled $var && continue
542 eval sel="\$${var}_select"
543 eval sgs="\$${var}_suggest"
544 pushvar var sgs
545 enable_deep $sel
546 popvar sgs
547 enable_deep_weak $sgs
548 popvar var
549 done
550 }
551
552 enable_deep(){
553 do_enable_deep $*
554 enable $*
555 }
556
557 enable_deep_weak(){
558 for var; do
559 disabled $var && continue
560 pushvar var
561 do_enable_deep $var
562 popvar var
563 enable_weak $var
564 done
565 }
566
567 enabled(){
568 test "${1#!}" = "$1" && op== || op=!=
569 eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573 test "${1#!}" = "$1" && op== || op=!=
574 eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578 for opt; do
579 enabled $opt || return 1
580 done
581 }
582
583 disabled_all(){
584 for opt; do
585 disabled $opt || return 1
586 done
587 }
588
589 enabled_any(){
590 for opt; do
591 enabled $opt && return 0
592 done
593 }
594
595 disabled_any(){
596 for opt; do
597 disabled $opt && return 0
598 done
599 return 1
600 }
601
602 set_default(){
603 for opt; do
604 eval : \${$opt:=\$${opt}_default}
605 done
606 }
607
608 is_in(){
609 value=$1
610 shift
611 for var in $*; do
612 [ $var = $value ] && return 0
613 done
614 return 1
615 }
616
617 check_deps(){
618 for cfg; do
619 enabled ${cfg}_checking && die "Circular dependency for $cfg."
620 disabled ${cfg}_checking && continue
621 enable ${cfg}_checking
622
623 eval dep_all="\$${cfg}_deps"
624 eval dep_any="\$${cfg}_deps_any"
625 eval dep_con="\$${cfg}_conflict"
626 eval dep_sel="\$${cfg}_select"
627 eval dep_sgs="\$${cfg}_suggest"
628 eval dep_ifa="\$${cfg}_if"
629 eval dep_ifn="\$${cfg}_if_any"
630
631 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637 enabled_all $dep_all || disable $cfg
638 enabled_any $dep_any || disable $cfg
639 disabled_all $dep_con || disable $cfg
640 disabled_any $dep_sel && disable $cfg
641
642 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645 # filter out library deps, these do not belong in extralibs
646 is_in $dep $LIBRARY_LIST && continue
647 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648 done
649
650 disable ${cfg}_checking
651 done
652 }
653
654 print_config(){
655 pfx=$1
656 files=$2
657 shift 2
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
660 {
661 c = \"$pfx\" toupper(\$1);
662 v = \$2;
663 sub(/yes/, 1, v);
664 sub(/no/, 0, v);
665 for (f in files) {
666 file = files[f];
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
674 }
675 }
676 }"
677 }
678
679 print_enabled(){
680 suf=$1
681 shift
682 for v; do
683 enabled $v && printf "%s\n" ${v%$suf}
684 done
685 }
686
687 append(){
688 var=$1
689 shift
690 eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694 var=$1
695 shift
696 eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700 var=$1
701 uniq_list=""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
704 done
705 eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709 var=$1
710 tmpvar=
711 for entry in $(eval echo \$$var); do
712 tmpvar="$tmpvar $(eval echo \$${entry})"
713 done
714 eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718 append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722 append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726 append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730 append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734 append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738 append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742 append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746 append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750 append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754 prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758 append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762 append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766 append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770 append compat_objs $1
771 shift
772 map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776 log "$@"
777 "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781 eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785 eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789 log check_cc "$@"
790 cat > $TMPC
791 log_file $TMPC
792 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796 log check_objcc "$@"
797 cat > $TMPC
798 log_file $TMPC
799 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803 log check_cpp "$@"
804 cat > $TMPC
805 log_file $TMPC
806 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810 eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814 log check_as "$@"
815 cat > $TMPS
816 log_file $TMPS
817 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821 log check_inline_asm "$@"
822 name="$1"
823 code="$2"
824 shift 2
825 disable $name
826 check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832 log check_insn "$@"
833 check_inline_asm ${1}_inline "\"$2\""
834 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838 log check_x86asm "$@"
839 echo "$1" > $TMPS
840 log_file $TMPS
841 shift 1
842 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846 eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850 log check_ld "$@"
851 flags=$(filter_out '-l*' "$@")
852 libs=$(filter '-l*' "$@")
853 check_cc $($cflags_filter $flags) || return
854 flags=$($ldflags_filter $flags)
855 libs=$($ldflags_filter $libs)
856 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860 hdr=$1
861 test "${hdr%.h}" = "${hdr}" &&
862 echo "#include $hdr" ||
863 echo "#include <$hdr>"
864 }
865
866 check_code(){
867 log check_code "$@"
868 check=$1
869 headers=$2
870 code=$3
871 shift 3
872 {
873 for hdr in $headers; do
874 print_include $hdr
875 done
876 echo "int main(void) { $code; return 0; }"
877 } | check_$check "$@"
878 }
879
880 check_cppflags(){
881 log check_cppflags "$@"
882 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888 log test_cflags "$@"
889 set -- $($cflags_filter "$@")
890 check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896 log check_cflags "$@"
897 test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901 log test_objcflags "$@"
902 set -- $($objcflags_filter "$@")
903 check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909 log check_objcflags "$@"
910 test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914 log test_ldflags "$@"
915 check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921 log check_ldflags "$@"
922 test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926 log test_stripflags "$@"
927 # call check_cc to get a fresh TMPO
928 check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931 check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935 log check_stripflags "$@"
936 test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940 log check_header "$@"
941 header=$1
942 shift
943 disable_sanitized $header
944 check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951 log check_func "$@"
952 func=$1
953 shift
954 disable $func
955 check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962 log check_mathfunc "$@"
963 func=$1
964 narg=$2
965 shift 2
966 test $narg = 2 && args="f, g" || args="f"
967 disable $func
968 check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976 log check_func_headers "$@"
977 headers=$1
978 funcs=$2
979 shift 2
980 {
981 for hdr in $headers; do
982 print_include $hdr
983 done
984 for func in $funcs; do
985 echo "long check_$func(void) { return (long) $func; }"
986 done
987 echo "int main(void) { return 0; }"
988 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992 log check_cpp_condition "$@"
993 header=$1
994 condition=$2
995 shift 2
996 check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005 log test_cflags_cpp "$@"
1006 flags=$1
1007 condition=$2
1008 shift 2
1009 set -- $($cflags_filter "$flags")
1010 check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018 log check_lib "$@"
1019 name="$1"
1020 headers="$2"
1021 funcs="$3"
1022 shift 3
1023 disable $name
1024 check_func_headers "$headers" "$funcs" "$@" &&
1025 enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 test_pkg_config(){
1029 log test_pkg_config "$@"
1030 name="$1"
1031 pkg_version="$2"
1032 pkg="${2%% *}"
1033 headers="$3"
1034 funcs="$4"
1035 shift 4
1036 disable $name
1037 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041 enable $name &&
1042 set_sanitized "${name}_cflags" $pkg_cflags &&
1043 set_sanitized "${name}_extralibs" $pkg_libs
1044 }
1045
1046 check_pkg_config(){
1047 log check_pkg_config "$@"
1048 name="$1"
1049 test_pkg_config "$@" &&
1050 eval add_cflags \$${name}_cflags
1051 }
1052
1053 check_exec(){
1054 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1055 }
1056
1057 check_exec_crash(){
1058 log check_exec_crash "$@"
1059 code=$(cat)
1060
1061 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1062 # are safe but may not be available everywhere. Thus we use
1063 # raise(SIGTERM) instead. The check is run in a subshell so we
1064 # can redirect the "Terminated" message from the shell. SIGBUS
1065 # is not defined by standard C so it is used conditionally.
1066
1067 (check_exec "$@") >> $logfile 2>&1 <<EOF
1068 #include <signal.h>
1069 static void sighandler(int sig){
1070 raise(SIGTERM);
1071 }
1072 int foo(void){
1073 $code
1074 }
1075 int (*func_ptr)(void) = foo;
1076 int main(void){
1077 signal(SIGILL, sighandler);
1078 signal(SIGFPE, sighandler);
1079 signal(SIGSEGV, sighandler);
1080 #ifdef SIGBUS
1081 signal(SIGBUS, sighandler);
1082 #endif
1083 return func_ptr();
1084 }
1085 EOF
1086 }
1087
1088 check_type(){
1089 log check_type "$@"
1090 headers=$1
1091 type=$2
1092 shift 2
1093 disable_sanitized "$type"
1094 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1095 }
1096
1097 check_struct(){
1098 log check_struct "$@"
1099 headers=$1
1100 struct=$2
1101 member=$3
1102 shift 3
1103 disable_sanitized "${struct}_${member}"
1104 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1105 enable_sanitized "${struct}_${member}"
1106 }
1107
1108 check_builtin(){
1109 log check_builtin "$@"
1110 name=$1
1111 headers=$2
1112 builtin=$3
1113 shift 3
1114 disable "$name"
1115 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1116 }
1117
1118 check_compile_assert(){
1119 log check_compile_assert "$@"
1120 name=$1
1121 headers=$2
1122 condition=$3
1123 shift 3
1124 disable "$name"
1125 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1126 }
1127
1128 require(){
1129 log require "$@"
1130 name_version="$1"
1131 name="${1%% *}"
1132 headers="$2"
1133 func="$3"
1134 shift 3
1135 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1136 }
1137
1138 require_header(){
1139 log require "$@"
1140 header="$1"
1141 shift
1142 check_header "$header" "$@" || die "ERROR: $header not found"
1143 }
1144
1145 require_cpp_condition(){
1146 log require "$@"
1147 header="$1"
1148 condition="$2"
1149 shift 2
1150 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1151 }
1152
1153 require_pkg_config(){
1154 log require_pkg_config "$@"
1155 pkg_version="$2"
1156 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1157 }
1158
1159 hostcc_e(){
1160 eval printf '%s\\n' $HOSTCC_E
1161 }
1162
1163 hostcc_o(){
1164 eval printf '%s\\n' $HOSTCC_O
1165 }
1166
1167 check_host_cc(){
1168 log check_host_cc "$@"
1169 cat > $TMPC
1170 log_file $TMPC
1171 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1172 }
1173
1174 check_host_cpp(){
1175 log check_host_cpp "$@"
1176 cat > $TMPC
1177 log_file $TMPC
1178 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1179 }
1180
1181 check_host_cppflags(){
1182 log check_host_cppflags "$@"
1183 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1184 #include <stdlib.h>;
1185 EOF
1186 }
1187
1188 check_host_cflags(){
1189 log check_host_cflags "$@"
1190 set -- $($host_cflags_filter "$@")
1191 check_host_cc "$@" <<EOF && append host_cflags "$@"
1192 int x;
1193 EOF
1194 }
1195
1196 check_host_cpp_condition(){
1197 log check_host_cpp_condition "$@"
1198 header=$1
1199 condition=$2
1200 shift 2
1201 check_host_cpp "$@" <<EOF
1202 #include <$header>
1203 #if !($condition)
1204 #error "unsatisfied condition: $condition"
1205 #endif
1206 EOF
1207 }
1208
1209 apply(){
1210 file=$1
1211 shift
1212 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1213 }
1214
1215 cp_if_changed(){
1216 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1217 mkdir -p "$(dirname $2)"
1218 cp -f "$1" "$2"
1219 }
1220
1221 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1222 # system-dependent things.
1223
1224 AVCODEC_COMPONENTS="
1225 bsfs
1226 decoders
1227 encoders
1228 hwaccels
1229 parsers
1230 "
1231
1232 AVDEVICE_COMPONENTS="
1233 indevs
1234 outdevs
1235 "
1236 AVFILTER_COMPONENTS="
1237 filters
1238 "
1239 AVFORMAT_COMPONENTS="
1240 demuxers
1241 muxers
1242 protocols
1243 "
1244
1245 AVRESAMPLE_COMPONENTS=""
1246 AVUTIL_COMPONENTS=""
1247
1248 COMPONENT_LIST="
1249 $AVCODEC_COMPONENTS
1250 $AVDEVICE_COMPONENTS
1251 $AVFILTER_COMPONENTS
1252 $AVFORMAT_COMPONENTS
1253 $AVRESAMPLE_COMPONENTS
1254 $AVUTIL_COMPONENTS
1255 "
1256
1257 EXAMPLE_LIST="
1258 decode_audio_example
1259 decode_video_example
1260 encode_audio_example
1261 encode_video_example
1262 filter_audio_example
1263 metadata_example
1264 output_example
1265 qsvdec_example
1266 transcode_aac_example
1267 "
1268
1269 # catchall list of things that require external libs to link
1270 EXTRALIBS_LIST="
1271 cpu_init
1272 cws2fws
1273 "
1274
1275 HWACCEL_LIBRARY_NONFREE_LIST="
1276 cuda
1277 cuvid
1278 libnpp
1279 "
1280 HWACCEL_LIBRARY_LIST="
1281 $HWACCEL_LIBRARY_NONFREE_LIST
1282 d3d11va
1283 dxva2
1284 libmfx
1285 mmal
1286 nvenc
1287 omx
1288 vaapi
1289 vda
1290 vdpau
1291 "
1292
1293 EXTERNAL_LIBRARY_GPL_LIST="
1294 libcdio
1295 libx264
1296 libx265
1297 libxavs
1298 libxvid
1299 "
1300
1301 EXTERNAL_LIBRARY_NONFREE_LIST="
1302 libfaac
1303 libfdk_aac
1304 openssl
1305 "
1306
1307 EXTERNAL_LIBRARY_VERSION3_LIST="
1308 libopencore_amrnb
1309 libopencore_amrwb
1310 libvo_aacenc
1311 libvo_amrwbenc
1312 "
1313
1314 EXTERNAL_LIBRARY_LIST="
1315 $EXTERNAL_LIBRARY_GPL_LIST
1316 $EXTERNAL_LIBRARY_NONFREE_LIST
1317 $EXTERNAL_LIBRARY_VERSION3_LIST
1318 avisynth
1319 avxsynth
1320 frei0r
1321 gnutls
1322 libbs2b
1323 libdc1394
1324 libdcadec
1325 libfontconfig
1326 libfreetype
1327 libgsm
1328 libhdcd
1329 libilbc
1330 libjack
1331 libkvazaar
1332 libmp3lame
1333 libopencv
1334 libopenh264
1335 libopenjpeg
1336 libopus
1337 libpulse
1338 librtmp
1339 libschroedinger
1340 libsnappy
1341 libspeex
1342 libtheora
1343 libtwolame
1344 libvorbis
1345 libvpx
1346 libwavpack
1347 libwebp
1348 libxcb
1349 libxcb_shm
1350 libxcb_xfixes
1351 "
1352
1353 SYSTEM_LIBRARY_LIST="
1354 bzlib
1355 zlib
1356 "
1357
1358 FEATURE_LIST="
1359 gray
1360 hardcoded_tables
1361 omx_rpi
1362 runtime_cpudetect
1363 safe_bitstream_reader
1364 shared
1365 small
1366 sram
1367 static
1368 swscale_alpha
1369 "
1370
1371 LIBRARY_LIST="
1372 avcodec
1373 avdevice
1374 avfilter
1375 avformat
1376 avresample
1377 avutil
1378 swscale
1379 "
1380
1381 LICENSE_LIST="
1382 gpl
1383 nonfree
1384 version3
1385 "
1386
1387 PROGRAM_LIST="
1388 avconv
1389 avplay
1390 avprobe
1391 "
1392
1393 SUBSYSTEM_LIST="
1394 dct
1395 doc
1396 error_resilience
1397 faan
1398 fft
1399 lsp
1400 lzo
1401 mdct
1402 network
1403 rdft
1404 "
1405
1406 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1407 CONFIG_LIST="
1408 $EXAMPLE_LIST
1409 $EXTERNAL_LIBRARY_LIST
1410 $HWACCEL_LIBRARY_LIST
1411 $FEATURE_LIST
1412 $LICENSE_LIST
1413 $LIBRARY_LIST
1414 $PROGRAM_LIST
1415 $SUBSYSTEM_LIST
1416 $SYSTEM_LIBRARY_LIST
1417 neon_clobber_test
1418 pic
1419 pod2man
1420 texi2html
1421 thumb
1422 valgrind_backtrace
1423 xmm_clobber_test
1424 $COMPONENT_LIST
1425 "
1426
1427 THREADS_LIST="
1428 pthreads
1429 w32threads
1430 "
1431
1432 ATOMICS_LIST="
1433 atomics_gcc
1434 atomics_suncc
1435 atomics_win32
1436 "
1437
1438 ARCH_LIST="
1439 aarch64
1440 alpha
1441 arm
1442 avr32
1443 avr32_ap
1444 avr32_uc
1445 bfin
1446 ia64
1447 m68k
1448 mips
1449 mips64
1450 parisc
1451 ppc
1452 ppc64
1453 s390
1454 sh4
1455 sparc
1456 sparc64
1457 tilegx
1458 tilepro
1459 tomi
1460 x86
1461 x86_32
1462 x86_64
1463 "
1464
1465 ARCH_EXT_LIST_ARM="
1466 armv5te
1467 armv6
1468 armv6t2
1469 armv8
1470 neon
1471 vfp
1472 vfpv3
1473 "
1474
1475 ARCH_EXT_LIST_X86_SIMD="
1476 amd3dnow
1477 amd3dnowext
1478 avx
1479 avx2
1480 fma3
1481 fma4
1482 mmx
1483 mmxext
1484 sse
1485 sse2
1486 sse3
1487 sse4
1488 sse42
1489 ssse3
1490 xop
1491 "
1492
1493 ARCH_EXT_LIST_PPC="
1494 altivec
1495 dcbzl
1496 ldbrx
1497 power8
1498 ppc4xx
1499 vsx
1500 "
1501
1502 ARCH_EXT_LIST_X86="
1503 $ARCH_EXT_LIST_X86_SIMD
1504 cpunop
1505 i686
1506 "
1507
1508 ARCH_EXT_LIST_MIPS="
1509 loongson
1510 mips32r1
1511 mips64r1
1512 mips32r2
1513 mips64r2
1514 mips32r6
1515 mips64r6
1516 "
1517
1518 ARCH_EXT_LIST="
1519 $ARCH_EXT_LIST_ARM
1520 $ARCH_EXT_LIST_MIPS
1521 $ARCH_EXT_LIST_PPC
1522 $ARCH_EXT_LIST_X86
1523 vis
1524 "
1525
1526 ARCH_FEATURES="
1527 aligned_stack
1528 fast_64bit
1529 fast_clz
1530 fast_cmov
1531 local_aligned_8
1532 local_aligned_16
1533 local_aligned_32
1534 simd_align_16
1535 simd_align_32
1536 "
1537
1538 BUILTIN_LIST="
1539 atomic_cas_ptr
1540 machine_rw_barrier
1541 MemoryBarrier
1542 mm_empty
1543 rdtsc
1544 sem_timedwait
1545 sync_val_compare_and_swap
1546 "
1547 HAVE_LIST_CMDLINE="
1548 inline_asm
1549 symver
1550 x86asm
1551 "
1552
1553 HAVE_LIST_PUB="
1554 bigendian
1555 fast_unaligned
1556 "
1557
1558 HEADERS_LIST="
1559 AVFoundation_AVFoundation_h
1560 arpa_inet_h
1561 cdio_paranoia_h
1562 cdio_paranoia_paranoia_h
1563 dispatch_dispatch_h
1564 dev_bktr_ioctl_bt848_h
1565 dev_bktr_ioctl_meteor_h
1566 dev_ic_bt8xx_h
1567 dev_video_bktr_ioctl_bt848_h
1568 dev_video_meteor_ioctl_meteor_h
1569 direct_h
1570 dxgidebug_h
1571 dxva_h
1572 io_h
1573 mach_mach_time_h
1574 machine_ioctl_bt848_h
1575 machine_ioctl_meteor_h
1576 malloc_h
1577 poll_h
1578 soundcard_h
1579 stdatomic_h
1580 sys_param_h
1581 sys_resource_h
1582 sys_select_h
1583 sys_soundcard_h
1584 sys_time_h
1585 sys_un_h
1586 sys_videoio_h
1587 unistd_h
1588 valgrind_valgrind_h
1589 windows_h
1590 winsock2_h
1591 "
1592
1593 INTRINSICS_LIST="
1594 intrinsics_neon
1595 "
1596
1597 MATH_FUNCS="
1598 atanf
1599 atan2f
1600 cbrtf
1601 cosf
1602 exp2
1603 exp2f
1604 expf
1605 isinf
1606 isnan
1607 ldexpf
1608 llrint
1609 llrintf
1610 log2
1611 log2f
1612 log10f
1613 lrint
1614 lrintf
1615 powf
1616 rint
1617 round
1618 roundf
1619 sinf
1620 trunc
1621 truncf
1622 "
1623
1624 SYSTEM_FUNCS="
1625 aligned_malloc
1626 clock_gettime
1627 closesocket
1628 CommandLineToArgvW
1629 CryptGenRandom
1630 fcntl
1631 fork
1632 getaddrinfo
1633 gethrtime
1634 getopt
1635 GetProcessAffinityMask
1636 GetProcessMemoryInfo
1637 GetProcessTimes
1638 getrusage
1639 GetSystemTimeAsFileTime
1640 gettimeofday
1641 gmtime_r
1642 inet_aton
1643 isatty
1644 localtime_r
1645 mach_absolute_time
1646 MapViewOfFile
1647 memalign
1648 mmap
1649 mprotect
1650 nanosleep
1651 posix_memalign
1652 sched_getaffinity
1653 SetConsoleTextAttribute
1654 setmode
1655 setrlimit
1656 Sleep
1657 strerror_r
1658 sysconf
1659 sysctl
1660 usleep
1661 VirtualAlloc
1662 "
1663
1664 TOOLCHAIN_FEATURES="
1665 as_arch_directive
1666 as_fpu_directive
1667 as_func
1668 as_object_arch
1669 asm_mod_q
1670 attribute_may_alias
1671 attribute_packed
1672 blocks_extension
1673 ebp_available
1674 ebx_available
1675 gnu_as
1676 ibm_asm
1677 inline_asm_labels
1678 pragma_deprecated
1679 symver_asm_label
1680 symver_gnu_asm
1681 vfp_args
1682 xform_asm
1683 xmm_clobbers
1684 "
1685
1686 TYPES_LIST="
1687 CONDITION_VARIABLE_Ptr
1688 CUVIDDECODECREATEINFO_bitDepthMinus8
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 cbs
1740 cbs_h264
1741 cbs_h265
1742 cbs_mpeg2
1743 dirac_parse
1744 dvprofile
1745 faandct
1746 faanidct
1747 fdctdsp
1748 flacdsp
1749 fmtconvert
1750 g722dsp
1751 gmp
1752 golomb
1753 gplv3
1754 h263dsp
1755 h264chroma
1756 h264dsp
1757 h264parse
1758 h264pred
1759 h264qpel
1760 hevcparse
1761 hpeldsp
1762 huffman
1763 huffyuvdsp
1764 huffyuvencdsp
1765 idctdsp
1766 iirfilter
1767 imdct15
1768 intrax8
1769 iso_media
1770 ividsp
1771 jpegtables
1772 lgplv3
1773 libx262
1774 libxcb_shape
1775 lpc
1776 lzf
1777 me_cmp
1778 mpeg_er
1779 mpegaudio
1780 mpegaudiodsp
1781 mpegaudioheader
1782 mpegvideo
1783 mpegvideoenc
1784 mss34dsp
1785 pixblockdsp
1786 qpeldsp
1787 qsv
1788 qsvdec
1789 qsvenc
1790 qsvvpp
1791 rangecoder
1792 riffdec
1793 riffenc
1794 rtpdec
1795 rtpenc_chain
1796 rv34dsp
1797 sinewin
1798 snappy
1799 srtp
1800 startcode
1801 texturedsp
1802 texturedspenc
1803 tpeldsp
1804 vaapi_encode
1805 vc1dsp
1806 videodsp
1807 vp3dsp
1808 vp56dsp
1809 vp8dsp
1810 wma_freqs
1811 wmv2dsp
1812 "
1813
1814 CMDLINE_SELECT="
1815 $ARCH_EXT_LIST
1816 $CONFIG_LIST
1817 $HAVE_LIST_CMDLINE
1818 $THREADS_LIST
1819 asm
1820 cross_compile
1821 debug
1822 extra_warnings
1823 logging
1824 lto
1825 optimizations
1826 rpath
1827 "
1828
1829 PATHS_LIST="
1830 bindir
1831 datadir
1832 docdir
1833 incdir
1834 libdir
1835 mandir
1836 prefix
1837 shlibdir
1838 "
1839
1840 CMDLINE_SET="
1841 $PATHS_LIST
1842 ar
1843 arch
1844 as
1845 cc
1846 objcc
1847 cpu
1848 cross_prefix
1849 custom_allocator
1850 dep_cc
1851 env
1852 extra_version
1853 host_cc
1854 host_cflags
1855 host_extralibs
1856 host_ld
1857 host_ldflags
1858 host_os
1859 ignore_tests
1860 ld
1861 logfile
1862 malloc_prefix
1863 nm
1864 optflags
1865 pkg_config
1866 pkg_config_flags
1867 random_seed
1868 samples
1869 sysinclude
1870 sysroot
1871 target_exec
1872 target_os
1873 target_path
1874 target_samples
1875 toolchain
1876 x86asmexe
1877 "
1878
1879 CMDLINE_APPEND="
1880 extra_cflags
1881 extra_objcflags
1882 host_cppflags
1883 "
1884
1885 # code dependency declarations
1886
1887 # architecture extensions
1888
1889 armv5te_deps="arm"
1890 armv6_deps="arm"
1891 armv6t2_deps="arm"
1892 armv8_deps="aarch64"
1893 neon_deps_any="aarch64 arm"
1894 intrinsics_neon_deps="neon"
1895 vfp_deps_any="aarch64 arm"
1896 vfpv3_deps="vfp"
1897
1898 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1899
1900 altivec_deps="ppc"
1901 dcbzl_deps="ppc"
1902 ldbrx_deps="ppc"
1903 ppc4xx_deps="ppc"
1904 vsx_deps="altivec"
1905 power8_deps="vsx"
1906
1907 loongson_deps="mips"
1908 mips32r1_deps="mips32"
1909 mips32r2_deps="mips32"
1910 mips32r6_deps="mips32"
1911 mips64r1_deps="mips64"
1912 mips64r2_deps="mips64"
1913 mips64r6_deps="mips64"
1914
1915 vis_deps="sparc"
1916
1917 cpunop_deps="i686"
1918 x86_64_select="i686"
1919 x86_64_suggest="fast_cmov"
1920
1921 amd3dnow_deps="mmx"
1922 amd3dnowext_deps="amd3dnow"
1923 i686_deps="x86"
1924 mmx_deps="x86"
1925 mmxext_deps="mmx"
1926 sse_deps="mmxext"
1927 sse2_deps="sse"
1928 sse3_deps="sse2"
1929 ssse3_deps="sse3"
1930 sse4_deps="ssse3"
1931 sse42_deps="sse4"
1932 avx_deps="sse42"
1933 xop_deps="avx"
1934 fma3_deps="avx"
1935 fma4_deps="avx"
1936 avx2_deps="avx"
1937
1938 mmx_external_deps="x86asm"
1939 mmx_inline_deps="inline_asm x86"
1940 mmx_suggest="mmx_external mmx_inline"
1941
1942 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1943 eval dep=\$${ext}_deps
1944 eval ${ext}_external_deps='"${dep}_external"'
1945 eval ${ext}_inline_deps='"${dep}_inline"'
1946 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1947 done
1948
1949 aligned_stack_if_any="aarch64 ppc x86"
1950 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1951 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1952 fast_unaligned_if_any="aarch64 ppc x86"
1953 simd_align_16_if_any="altivec neon sse"
1954 simd_align_32_if_any="avx"
1955
1956 # system capabilities
1957 symver_if_any="symver_asm_label symver_gnu_asm"
1958 valgrind_backtrace_conflict="optimizations"
1959 valgrind_backtrace_deps="valgrind_valgrind_h"
1960
1961 # threading support
1962 atomics_gcc_if="sync_val_compare_and_swap"
1963 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1964 atomics_win32_if="MemoryBarrier"
1965 atomics_native_if_any="$ATOMICS_LIST"
1966 w32threads_deps="atomics_native"
1967 threads_if_any="$THREADS_LIST"
1968
1969 # subsystems
1970 cbs_h264_select="cbs golomb"
1971 cbs_h265_select="cbs golomb"
1972 cbs_mpeg2_select="cbs"
1973 dct_select="rdft"
1974 dirac_parse_select="golomb"
1975 error_resilience_select="me_cmp"
1976 faandct_deps="faan"
1977 faandct_select="fdctdsp"
1978 faanidct_deps="faan"
1979 faanidct_select="idctdsp"
1980 h264dsp_select="startcode"
1981 hevcparse_select="golomb"
1982 intrax8_select="blockdsp idctdsp"
1983 mdct_select="fft"
1984 rdft_select="fft"
1985 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1986 mpeg_er_select="error_resilience"
1987 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1988 mpegaudiodsp_select="dct"
1989 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1990 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1991 vc1dsp_select="h264chroma qpeldsp startcode"
1992
1993 # decoders / encoders
1994 aac_decoder_select="adts_header imdct15 mdct sinewin"
1995 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1996 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1997 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1998 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1999 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2000 adpcm_g722_decoder_select="g722dsp"
2001 adpcm_g722_encoder_select="g722dsp"
2002 aic_decoder_select="golomb idctdsp"
2003 alac_encoder_select="lpc"
2004 als_decoder_select="bswapdsp"
2005 amrnb_decoder_select="lsp"
2006 amrwb_decoder_select="lsp"
2007 amv_decoder_select="sp5x_decoder"
2008 ape_decoder_select="bswapdsp"
2009 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2010 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2011 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2012 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2013 atrac1_decoder_select="mdct sinewin"
2014 atrac3_decoder_select="mdct"
2015 atrac3p_decoder_select="mdct sinewin"
2016 bink_decoder_select="blockdsp hpeldsp"
2017 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2018 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2019 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2020 clearvideo_decoder_select="idctdsp"
2021 cllc_decoder_select="bswapdsp"
2022 comfortnoise_encoder_select="lpc"
2023 cook_decoder_select="audiodsp mdct sinewin"
2024 cscd_decoder_select="lzo"
2025 cscd_decoder_suggest="zlib"
2026 dca_decoder_select="fmtconvert mdct"
2027 dds_decoder_select="texturedsp"
2028 dnxhd_decoder_select="blockdsp idctdsp"
2029 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2030 dvvideo_decoder_select="dvprofile idctdsp"
2031 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2032 dxa_decoder_deps="zlib"
2033 dxv_decoder_select="lzf texturedsp"
2034 eac3_decoder_select="ac3_decoder"
2035 eac3_encoder_select="ac3_encoder"
2036 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2037 eatgq_decoder_select="aandcttables idctdsp"
2038 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2039 exr_decoder_deps="zlib"
2040 ffv1_decoder_select="rangecoder"
2041 ffv1_encoder_select="rangecoder"
2042 ffvhuff_decoder_select="huffyuv_decoder"
2043 ffvhuff_encoder_select="huffyuv_encoder"
2044 fic_decoder_select="golomb"
2045 flac_decoder_select="flacdsp"
2046 flac_encoder_select="bswapdsp flacdsp lpc"
2047 flashsv_decoder_deps="zlib"
2048 flashsv_encoder_deps="zlib"
2049 flashsv2_decoder_deps="zlib"
2050 flv_decoder_select="h263_decoder"
2051 flv_encoder_select="h263_encoder"
2052 fourxm_decoder_select="blockdsp bswapdsp"
2053 fraps_decoder_select="bswapdsp huffman"
2054 g2m_decoder_deps="zlib"
2055 g2m_decoder_select="blockdsp idctdsp jpegtables"
2056 h261_decoder_select="mpeg_er mpegvideo"
2057 h261_encoder_select="aandcttables mpegvideoenc"
2058 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2059 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2060 h263i_decoder_select="h263_decoder"
2061 h263p_encoder_select="h263_encoder"
2062 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2063 h264_decoder_suggest="error_resilience"
2064 hap_decoder_select="snappy texturedsp"
2065 hap_encoder_deps="libsnappy"
2066 hap_encoder_select="texturedspenc"
2067 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2068 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2069 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2070 iac_decoder_select="imc_decoder"
2071 imc_decoder_select="bswapdsp fft mdct sinewin"
2072 indeo3_decoder_select="hpeldsp"
2073 indeo4_decoder_select="ividsp"
2074 indeo5_decoder_select="ividsp"
2075 interplay_video_decoder_select="hpeldsp"
2076 jpegls_decoder_select="mjpeg_decoder"
2077 jv_decoder_select="blockdsp"
2078 lagarith_decoder_select="huffyuvdsp"
2079 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2080 magicyuv_decoder_select="huffyuvdsp"
2081 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2082 metasound_decoder_select="lsp mdct sinewin"
2083 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2084 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2085 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2086 mjpegb_decoder_select="mjpeg_decoder"
2087 mlp_decoder_select="mlp_parser"
2088 motionpixels_decoder_select="bswapdsp"
2089 mp1_decoder_select="mpegaudio"
2090 mp1float_decoder_select="mpegaudio"
2091 mp2_decoder_select="mpegaudio"
2092 mp2float_decoder_select="mpegaudio"
2093 mp3_decoder_select="mpegaudio"
2094 mp3adu_decoder_select="mpegaudio"
2095 mp3adufloat_decoder_select="mpegaudio"
2096 mp3float_decoder_select="mpegaudio"
2097 mp3on4_decoder_select="mpegaudio"
2098 mp3on4float_decoder_select="mpegaudio"
2099 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2100 mpc8_decoder_select="mpegaudiodsp"
2101 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2102 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2103 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2104 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2105 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2106 mpeg4_encoder_select="h263_encoder"
2107 msa1_decoder_select="mss34dsp"
2108 msmpeg4v1_decoder_select="h263_decoder"
2109 msmpeg4v2_decoder_select="h263_decoder"
2110 msmpeg4v2_encoder_select="h263_encoder"
2111 msmpeg4v3_decoder_select="h263_decoder"
2112 msmpeg4v3_encoder_select="h263_encoder"
2113 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2114 mts2_decoder_select="mss34dsp"
2115 mxpeg_decoder_select="mjpeg_decoder"
2116 nellymoser_decoder_select="mdct sinewin"
2117 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2118 nuv_decoder_select="idctdsp lzo"
2119 on2avc_decoder_select="mdct"
2120 opus_decoder_deps="avresample"
2121 opus_decoder_select="imdct15"
2122 png_decoder_deps="zlib"
2123 png_encoder_deps="zlib"
2124 png_encoder_select="huffyuvencdsp"
2125 prores_decoder_select="idctdsp"
2126 prores_encoder_select="fdctdsp"
2127 qcelp_decoder_select="lsp"
2128 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2129 ra_144_encoder_select="audio_frame_queue lpc"
2130 ralf_decoder_select="golomb"
2131 rscc_decoder_deps="zlib"
2132 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2133 rv10_encoder_select="h263_encoder"
2134 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2135 rv20_encoder_select="h263_encoder"
2136 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2137 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2138 screenpresso_decoder_deps="zlib"
2139 sipr_decoder_select="lsp"
2140 sp5x_decoder_select="mjpeg_decoder"
2141 svq1_decoder_select="hpeldsp"
2142 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2143 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2144 svq3_decoder_suggest="zlib"
2145 tak_decoder_select="audiodsp"
2146 tdsc_decoder_deps="zlib"
2147 tdsc_decoder_select="mjpeg_decoder"
2148 theora_decoder_select="vp3_decoder"
2149 thp_decoder_select="mjpeg_decoder"
2150 tiff_decoder_suggest="zlib"
2151 tiff_encoder_suggest="zlib"
2152 truehd_decoder_select="mlp_decoder"
2153 truemotion2_decoder_select="bswapdsp"
2154 truespeech_decoder_select="bswapdsp"
2155 tscc_decoder_deps="zlib"
2156 txd_decoder_select="texturedsp"
2157 twinvq_decoder_select="mdct lsp sinewin"
2158 utvideo_decoder_select="bswapdsp huffyuvdsp"
2159 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2160 vble_decoder_select="huffyuvdsp"
2161 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2162 vc1image_decoder_select="vc1_decoder"
2163 vorbis_decoder_select="mdct"
2164 vorbis_encoder_select="mdct"
2165 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2166 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2167 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2168 vp6a_decoder_select="vp6_decoder"
2169 vp6f_decoder_select="vp6_decoder"
2170 vp7_decoder_select="h264pred videodsp vp8dsp"
2171 vp8_decoder_select="h264pred videodsp vp8dsp"
2172 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2173 webp_decoder_select="vp8_decoder"
2174 wmapro_decoder_select="mdct sinewin wma_freqs"
2175 wmav1_decoder_select="mdct sinewin wma_freqs"
2176 wmav1_encoder_select="mdct sinewin wma_freqs"
2177 wmav2_decoder_select="mdct sinewin wma_freqs"
2178 wmav2_encoder_select="mdct sinewin wma_freqs"
2179 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2180 wmv1_decoder_select="h263_decoder"
2181 wmv1_encoder_select="h263_encoder"
2182 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2183 wmv2_encoder_select="h263_encoder wmv2dsp"
2184 wmv3_decoder_select="vc1_decoder"
2185 wmv3image_decoder_select="wmv3_decoder"
2186 zerocodec_decoder_deps="zlib"
2187 zlib_decoder_deps="zlib"
2188 zlib_encoder_deps="zlib"
2189 zmbv_decoder_deps="zlib"
2190 zmbv_encoder_deps="zlib"
2191
2192 # hardware accelerators
2193 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2194 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2195 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2196 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2197
2198 h263_vaapi_hwaccel_deps="vaapi"
2199 h263_vaapi_hwaccel_select="h263_decoder"
2200 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2201 h264_cuvid_hwaccel_select="h264_decoder"
2202 h264_d3d11va_hwaccel_deps="d3d11va"
2203 h264_d3d11va_hwaccel_select="h264_decoder"
2204 h264_d3d11va2_hwaccel_deps="d3d11va"
2205 h264_d3d11va2_hwaccel_select="h264_decoder"
2206 h264_dxva2_hwaccel_deps="dxva2"
2207 h264_dxva2_hwaccel_select="h264_decoder"
2208 h264_mmal_hwaccel_deps="mmal"
2209 h264_qsv_hwaccel_deps="libmfx"
2210 h264_vaapi_hwaccel_deps="vaapi"
2211 h264_vaapi_hwaccel_select="h264_decoder"
2212 h264_vda_hwaccel_deps="vda"
2213 h264_vda_hwaccel_select="h264_decoder"
2214 h264_vda_old_hwaccel_deps="vda"
2215 h264_vda_old_hwaccel_select="h264_decoder"
2216 h264_vdpau_hwaccel_deps="vdpau"
2217 h264_vdpau_hwaccel_select="h264_decoder"
2218 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2219 hevc_cuvid_hwaccel_select="hevc_decoder"
2220 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2221 hevc_d3d11va_hwaccel_select="hevc_decoder"
2222 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2223 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2224 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2225 hevc_dxva2_hwaccel_select="hevc_decoder"
2226 hevc_qsv_hwaccel_deps="libmfx"
2227 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2228 hevc_vaapi_hwaccel_select="hevc_decoder"
2229 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2230 hevc_vdpau_hwaccel_select="hevc_decoder"
2231 mpeg1_vdpau_hwaccel_deps="vdpau"
2232 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2233 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2234 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2235 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2236 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_dxva2_hwaccel_deps="dxva2"
2238 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_mmal_hwaccel_deps="mmal"
2240 mpeg2_qsv_hwaccel_deps="libmfx"
2241 mpeg2_vaapi_hwaccel_deps="vaapi"
2242 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2243 mpeg2_vdpau_hwaccel_deps="vdpau"
2244 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2245 mpeg4_vaapi_hwaccel_deps="vaapi"
2246 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2247 mpeg4_vdpau_hwaccel_deps="vdpau"
2248 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2249 vc1_d3d11va_hwaccel_deps="d3d11va"
2250 vc1_d3d11va_hwaccel_select="vc1_decoder"
2251 vc1_d3d11va2_hwaccel_deps="d3d11va"
2252 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2253 vc1_dxva2_hwaccel_deps="dxva2"
2254 vc1_dxva2_hwaccel_select="vc1_decoder"
2255 vc1_mmal_hwaccel_deps="mmal"
2256 vc1_qsv_hwaccel_deps="libmfx"
2257 vc1_vaapi_hwaccel_deps="vaapi"
2258 vc1_vaapi_hwaccel_select="vc1_decoder"
2259 vc1_vdpau_hwaccel_deps="vdpau"
2260 vc1_vdpau_hwaccel_select="vc1_decoder"
2261 vp8_qsv_hwaccel_deps="libmfx"
2262 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2263 vp8_vaapi_hwaccel_select="vp8_decoder"
2264 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2265 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2266 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2267 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2268 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2269
2270 # hardware-accelerated codecs
2271 nvenc_deps_any="libdl LoadLibrary"
2272 omx_deps="libdl pthreads"
2273 omx_rpi_select="omx"
2274 qsv_deps="libmfx"
2275 qsvdec_select="qsv"
2276 qsvenc_select="qsv"
2277 qsvvpp_select="qsv"
2278 vaapi_encode_deps="vaapi"
2279
2280 hwupload_cuda_filter_deps="cuda"
2281 scale_npp_filter_deps="cuda libnpp"
2282
2283 h264_mmal_decoder_deps="mmal"
2284 h264_nvenc_encoder_deps="nvenc"
2285 h264_omx_encoder_deps="omx"
2286 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2287 h264_qsv_encoder_select="qsvenc"
2288 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2289 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2290 hevc_nvenc_encoder_deps="nvenc"
2291 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2292 hevc_qsv_encoder_select="hevcparse qsvenc"
2293 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2294 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2295 mjpeg_qsv_encoder_deps="libmfx"
2296 mjpeg_qsv_encoder_select="qsvenc"
2297 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2298 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2299 mpeg2_mmal_decoder_deps="mmal"
2300 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2301 mpeg2_qsv_encoder_select="qsvenc"
2302 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2303 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2304 mpeg4_omx_encoder_deps="omx"
2305 vc1_mmal_decoder_deps="mmal"
2306 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2307 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2308 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2309 vp8_vaapi_encoder_select="vaapi_encode"
2310 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2311 vp9_vaapi_encoder_select="vaapi_encode"
2312
2313 nvenc_h264_encoder_select="h264_nvenc_encoder"
2314 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2315
2316 # parsers
2317 aac_parser_select="adts_header"
2318 h264_parser_select="golomb h264dsp h264parse"
2319 hevc_parser_select="hevcparse"
2320 mpegaudio_parser_select="mpegaudioheader"
2321 mpegvideo_parser_select="mpegvideo"
2322 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2323 vc1_parser_select="vc1dsp"
2324
2325 # bitstream_filters
2326 aac_adtstoasc_bsf_select="adts_header"
2327 h264_metadata_bsf_select="cbs_h264"
2328 h264_redundant_pps_bsf_select="cbs_h264"
2329 hevc_metadata_bsf_select="cbs_h265"
2330 mjpeg2jpeg_bsf_select="jpegtables"
2331 mpeg2_metadata_bsf_select="cbs_mpeg2"
2332 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2333
2334 # external libraries
2335 avisynth_deps="LoadLibrary"
2336 avxsynth_deps="libdl"
2337 avisynth_demuxer_deps_any="avisynth avxsynth"
2338 avisynth_demuxer_select="riffdec"
2339 libdcadec_decoder_deps="libdcadec"
2340 libfaac_encoder_deps="libfaac"
2341 libfaac_encoder_select="audio_frame_queue"
2342 libfdk_aac_decoder_deps="libfdk_aac"
2343 libfdk_aac_encoder_deps="libfdk_aac"
2344 libfdk_aac_encoder_select="audio_frame_queue"
2345 libgsm_decoder_deps="libgsm"
2346 libgsm_encoder_deps="libgsm"
2347 libgsm_ms_decoder_deps="libgsm"
2348 libgsm_ms_encoder_deps="libgsm"
2349 libilbc_decoder_deps="libilbc"
2350 libilbc_encoder_deps="libilbc"
2351 libkvazaar_encoder_deps="libkvazaar"
2352 libmp3lame_encoder_deps="libmp3lame"
2353 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2354 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2355 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2356 libopencore_amrnb_encoder_select="audio_frame_queue"
2357 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2358 libopenh264_decoder_deps="libopenh264"
2359 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2360 libopenh264_encoder_deps="libopenh264"
2361 libopenjpeg_decoder_deps="libopenjpeg"
2362 libopenjpeg_encoder_deps="libopenjpeg"
2363 libopus_decoder_deps="libopus"
2364 libopus_encoder_deps="libopus"
2365 libopus_encoder_select="audio_frame_queue"
2366 libschroedinger_decoder_deps="libschroedinger"
2367 libschroedinger_encoder_deps="libschroedinger"
2368 libspeex_decoder_deps="libspeex"
2369 libspeex_encoder_deps="libspeex"
2370 libspeex_encoder_select="audio_frame_queue"
2371 libtheora_encoder_deps="libtheora"
2372 libtwolame_encoder_deps="libtwolame"
2373 libvo_aacenc_encoder_deps="libvo_aacenc"
2374 libvo_aacenc_encoder_select="audio_frame_queue"
2375 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2376 libvorbis_encoder_deps="libvorbis"
2377 libvorbis_encoder_select="audio_frame_queue"
2378 libvpx_vp8_decoder_deps="libvpx"
2379 libvpx_vp8_encoder_deps="libvpx"
2380 libvpx_vp9_decoder_deps="libvpx"
2381 libvpx_vp9_encoder_deps="libvpx"
2382 libwavpack_encoder_deps="libwavpack"
2383 libwavpack_encoder_select="audio_frame_queue"
2384 libwebp_encoder_deps="libwebp"
2385 libx262_encoder_deps="libx262"
2386 libx264_encoder_deps="libx264"
2387 libx265_encoder_deps="libx265"
2388 libxavs_encoder_deps="libxavs"
2389 libxvid_encoder_deps="libxvid mkstemp"
2390
2391 # demuxers / muxers
2392 ac3_demuxer_select="ac3_parser"
2393 asf_demuxer_select="riffdec"
2394 asf_muxer_select="riffenc"
2395 asf_stream_muxer_select="asf_muxer"
2396 avi_demuxer_select="iso_media riffdec"
2397 avi_muxer_select="riffenc"
2398 caf_demuxer_select="iso_media riffdec"
2399 dash_muxer_select="mp4_muxer"
2400 dirac_demuxer_select="dirac_parser"
2401 dv_demuxer_select="dvprofile"
2402 dv_muxer_select="dvprofile"
2403 dxa_demuxer_select="riffdec"
2404 eac3_demuxer_select="ac3_parser"
2405 f4v_muxer_select="mov_muxer"
2406 flac_demuxer_select="flac_parser"
2407 hds_muxer_select="flv_muxer"
2408 hls_muxer_select="mpegts_muxer"
2409 ipod_muxer_select="mov_muxer"
2410 ismv_muxer_select="mov_muxer"
2411 matroska_audio_muxer_select="matroska_muxer"
2412 matroska_demuxer_select="iso_media riffdec"
2413 matroska_demuxer_suggest="bzlib lzo zlib"
2414 matroska_muxer_select="iso_media riffenc"
2415 mmf_muxer_select="riffenc"
2416 mov_demuxer_select="iso_media riffdec"
2417 mov_demuxer_suggest="zlib"
2418 mov_muxer_select="iso_media riffenc rtpenc_chain"
2419 mp3_demuxer_select="mpegaudio_parser"
2420 mp3_muxer_select="mpegaudioheader"
2421 mp4_muxer_select="mov_muxer"
2422 mpegts_demuxer_select="iso_media"
2423 mpegts_muxer_select="adts_muxer latm_muxer"
2424 mpegtsraw_demuxer_select="mpegts_demuxer"
2425 mxf_d10_muxer_select="mxf_muxer"
2426 nut_muxer_select="riffenc"
2427 nuv_demuxer_select="riffdec"
2428 oga_muxer_select="ogg_muxer"
2429 ogg_demuxer_select="dirac_parse"
2430 opus_muxer_select="ogg_muxer"
2431 psp_muxer_select="mov_muxer"
2432 rtp_demuxer_select="sdp_demuxer"
2433 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2434 rtsp_demuxer_select="http_protocol rtpdec"
2435 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2436 sap_demuxer_select="sdp_demuxer"
2437 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2438 sdp_demuxer_select="rtpdec"
2439 smoothstreaming_muxer_select="ismv_muxer"
2440 spdif_demuxer_select="adts_header"
2441 spdif_muxer_select="adts_header"
2442 spx_muxer_select="ogg_muxer"
2443 swf_demuxer_suggest="zlib"
2444 tak_demuxer_select="tak_parser"
2445 tg2_muxer_select="mov_muxer"
2446 tgp_muxer_select="mov_muxer"
2447 w64_demuxer_select="wav_demuxer"
2448 wav_demuxer_select="riffdec"
2449 wav_muxer_select="riffenc"
2450 webm_muxer_select="iso_media riffenc"
2451 wtv_demuxer_select="mpegts_demuxer riffdec"
2452 xmv_demuxer_select="riffdec"
2453 xwma_demuxer_select="riffdec"
2454
2455 # indevs / outdevs
2456 alsa_indev_deps="alsa"
2457 alsa_outdev_deps="alsa"
2458 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2459 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2460 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2461 dv1394_indev_deps="dv1394"
2462 dv1394_indev_select="dv_demuxer"
2463 fbdev_indev_deps="linux_fb_h"
2464 jack_indev_deps="libjack"
2465 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2466 libcdio_indev_deps="libcdio"
2467 libdc1394_indev_deps="libdc1394"
2468 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2469 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2470 pulse_indev_deps="libpulse"
2471 sndio_indev_deps="sndio"
2472 sndio_outdev_deps="sndio"
2473 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2474 vfwcap_indev_deps="vfw32 vfwcap_defines"
2475 xcbgrab_indev_deps="libxcb libxcb_shape"
2476 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2477
2478 # protocols
2479 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2480 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2481 ffrtmpcrypt_protocol_select="tcp_protocol"
2482 ffrtmphttp_protocol_conflict="librtmp_protocol"
2483 ffrtmphttp_protocol_select="http_protocol"
2484 gopher_protocol_select="network"
2485 http_protocol_select="tcp_protocol"
2486 http_protocol_suggest="zlib"
2487 httpproxy_protocol_select="tcp_protocol"
2488 httpproxy_protocol_suggest="zlib"
2489 https_protocol_select="tls_protocol"
2490 https_protocol_suggest="zlib"
2491 icecast_protocol_select="http_protocol"
2492 librtmp_protocol_deps="librtmp"
2493 librtmpe_protocol_deps="librtmp"
2494 librtmps_protocol_deps="librtmp"
2495 librtmpt_protocol_deps="librtmp"
2496 librtmpte_protocol_deps="librtmp"
2497 mmsh_protocol_select="http_protocol"
2498 mmst_protocol_select="network"
2499 rtmp_protocol_conflict="librtmp_protocol"
2500 rtmp_protocol_select="tcp_protocol"
2501 rtmp_protocol_suggest="zlib"
2502 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2503 rtmpe_protocol_suggest="zlib"
2504 rtmps_protocol_conflict="librtmp_protocol"
2505 rtmps_protocol_select="tls_protocol"
2506 rtmps_protocol_suggest="zlib"
2507 rtmpt_protocol_select="ffrtmphttp_protocol"
2508 rtmpt_protocol_suggest="zlib"
2509 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2510 rtmpte_protocol_suggest="zlib"
2511 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2512 rtmpts_protocol_suggest="zlib"
2513 rtp_protocol_select="udp_protocol"
2514 sctp_protocol_deps="struct_sctp_event_subscribe"
2515 sctp_protocol_select="network"
2516 srtp_protocol_select="rtp_protocol srtp"
2517 tcp_protocol_select="network"
2518 tls_protocol_deps_any="gnutls openssl"
2519 tls_protocol_select="tcp_protocol"
2520 udp_protocol_select="network"
2521 unix_protocol_deps="sys_un_h"
2522 unix_protocol_select="network"
2523
2524 # filters
2525 asyncts_filter_deps="avresample"
2526 blackframe_filter_deps="gpl"
2527 boxblur_filter_deps="gpl"
2528 bs2b_filter_deps="libbs2b"
2529 cropdetect_filter_deps="gpl"
2530 deinterlace_qsv_filter_deps="libmfx"
2531 deinterlace_vaapi_filter_deps="vaapi"
2532 delogo_filter_deps="gpl"
2533 drawtext_filter_deps="libfreetype"
2534 drawtext_filter_suggest="libfontconfig"
2535 frei0r_filter_deps="frei0r libdl"
2536 frei0r_src_filter_deps="frei0r libdl"
2537 hdcd_filter_deps="libhdcd"
2538 hqdn3d_filter_deps="gpl"
2539 interlace_filter_deps="gpl"
2540 movie_filter_deps="avcodec avformat"
2541 ocv_filter_deps="libopencv"
2542 overlay_qsv_filter_deps="libmfx"
2543 overlay_qsv_filter_select="qsvvpp"
2544 resample_filter_deps="avresample"
2545 scale_filter_deps="swscale"
2546 scale_qsv_filter_deps="libmfx"
2547 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2548 vpp_qsv_filter_deps="libmfx"
2549 vpp_qsv_filter_select="qsvvpp"
2550
2551 # examples
2552 decode_audio_example_deps="avcodec avutil"
2553 decode_video_example_deps="avcodec avutil"
2554 encode_audio_example_deps="avcodec avutil"
2555 encode_video_example_deps="avcodec avutil"
2556 filter_audio_example_deps="avfilter avutil"
2557 metadata_example_deps="avformat avutil"
2558 output_example_deps="avcodec avformat avresample avutil swscale"
2559 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2560 transcode_aac_example_deps="avcodec avformat avresample"
2561
2562 # EXTRALIBS_LIST
2563 cpu_init_extralibs="pthreads_extralibs"
2564 cws2fws_extralibs="zlib_extralibs"
2565
2566 # libraries, in linking order
2567 avcodec_deps="avutil"
2568 avcodec_select="null_bsf"
2569 avdevice_deps="avformat avcodec avutil"
2570 avfilter_deps="avutil"
2571 avformat_deps="avcodec avutil"
2572 avformat_suggest="network"
2573 avresample_deps="avutil"
2574 swscale_deps="avutil"
2575
2576 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2577 avdevice_extralibs="libm_extralibs"
2578 avformat_extralibs="libm_extralibs"
2579 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2580 avresample_extralibs="libm_extralibs"
2581 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2582 swscale_extralibs="libm_extralibs"
2583
2584 # programs
2585 avconv_deps="avcodec avfilter avformat avresample swscale"
2586 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2587 fps_filter null_filter resample_filter scale_filter
2588 trim_filter"
2589 avconv_suggest="psapi shell32"
2590 avplay_deps="avcodec avfilter avformat avresample sdl"
2591 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2592 avplay_suggest="shell32"
2593 avprobe_deps="avcodec avformat"
2594 avprobe_suggest="shell32"
2595
2596 # documentation
2597 pod2man_deps="doc"
2598 texi2html_deps="doc"
2599
2600 # default parameters
2601
2602 logfile="avbuild/config.log"
2603
2604 # installation paths
2605 prefix_default="/usr/local"
2606 bindir_default='${prefix}/bin'
2607 datadir_default='${prefix}/share/avconv'
2608 docdir_default='${prefix}/share/doc/libav'
2609 incdir_default='${prefix}/include'
2610 libdir_default='${prefix}/lib'
2611 mandir_default='${prefix}/share/man'
2612 shlibdir_default="$libdir_default"
2613
2614 # toolchain
2615 ar_default="ar"
2616 cc_default="gcc"
2617 host_cc_default="gcc"
2618 x86asmexe_default="nasm"
2619 ln_s="ln -s -f"
2620 nm_default="nm -g"
2621 pkg_config_default=pkg-config
2622 ranlib="ranlib"
2623 strip="strip"
2624 version_script='--version-script'
2625
2626 # machine
2627 arch_default=$(uname -m)
2628 cpu="generic"
2629 intrinsics="none"
2630
2631 # OS
2632 target_os_default=$(tolower $(uname -s))
2633 host_os=$target_os_default
2634
2635 # configurable options
2636 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2637
2638 enable asm
2639 enable debug
2640 enable doc
2641 enable faan faandct faanidct
2642 enable optimizations
2643 enable safe_bitstream_reader
2644 enable static
2645 enable swscale_alpha
2646 enable valgrind_backtrace
2647
2648 # By default, enable only those hwaccels that have no external dependencies.
2649 enable d3d11va dxva2 vda vdpau
2650
2651 # internal components are enabled by default
2652 enable $EXTRALIBS_LIST
2653
2654 # Avoid external, non-system, libraries getting enabled by dependency resolution
2655 disable $EXTERNAL_LIBRARY_LIST
2656
2657 # build settings
2658 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2659 LIBPREF="lib"
2660 LIBSUF=".a"
2661 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2662 SLIBPREF="lib"
2663 SLIBSUF=".so"
2664 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2665 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2666 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2667 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2668 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2669 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2670 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2671
2672 asflags_filter=echo
2673 cflags_filter=echo
2674 ldflags_filter=echo
2675
2676 AS_C='-c'
2677 AS_O='-o $@'
2678 CC_C='-c'
2679 CC_E='-E -o $@'
2680 CC_O='-o $@'
2681 OBJCC_C='-c'
2682 OBJCC_E='-E -o $@'
2683 OBJCC_O='-o $@'
2684 X86ASM_O='-o $@'
2685 LD_O='-o $@'
2686 LD_LIB='-l%'
2687 LD_PATH='-L'
2688 HOSTCC_C='-c'
2689 HOSTCC_E='-E -o $@'
2690 HOSTCC_O='-o $@'
2691 HOSTLD_O='-o $@'
2692
2693 host_extralibs='-lm'
2694 host_cflags_filter=echo
2695 host_ldflags_filter=echo
2696
2697 target_path='$(CURDIR)'
2698
2699 # since the object filename is not given with the -MM flag, the compiler
2700 # is only able to print the basename, and we must add the path ourselves
2701 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2702 DEPFLAGS='-MM'
2703
2704 mkdir -p avbuild
2705
2706 # find source path
2707 if test -f configure; then
2708 source_path=.
2709 else
2710 source_path=$(cd $(dirname "$0"); pwd)
2711 echo "$source_path" | grep -q '[[:blank:]]' &&
2712 die "Out of tree builds are impossible with whitespace in source path."
2713 test -e "$source_path/config.h" &&
2714 die "Out of tree builds are impossible with config.h in source dir."
2715 fi
2716
2717 for v in "$@"; do
2718 r=${v#*=}
2719 l=${v%"$r"}
2720 r=$(sh_quote "$r")
2721 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2722 done
2723
2724 find_things(){
2725 thing=$1
2726 pattern=$2
2727 file=$source_path/$3
2728 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2729 }
2730
2731 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2732 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2733 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2734 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2735 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2736 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2737 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2738 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2739 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2740
2741 find_things_extern(){
2742 thing=$1
2743 pattern=$2
2744 file=$source_path/$3
2745 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2746 }
2747
2748 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2749 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2750
2751 AVCODEC_COMPONENTS_LIST="
2752 $BSF_LIST
2753 $DECODER_LIST
2754 $ENCODER_LIST
2755 $HWACCEL_LIST
2756 $PARSER_LIST
2757 "
2758
2759 AVDEVICE_COMPONENTS_LIST="
2760 $INDEV_LIST
2761 $OUTDEV_LIST
2762 "
2763
2764 AVFILTER_COMPONENTS_LIST="
2765 $FILTER_LIST
2766 "
2767
2768 AVFORMAT_COMPONENTS_LIST="
2769 $DEMUXER_LIST
2770 $MUXER_LIST
2771 $PROTOCOL_LIST
2772 "
2773
2774 ALL_COMPONENTS="
2775 $AVCODEC_COMPONENTS_LIST
2776 $AVDEVICE_COMPONENTS_LIST
2777 $AVFILTER_COMPONENTS_LIST
2778 $AVFORMAT_COMPONENTS_LIST
2779 "
2780
2781 for n in $COMPONENT_LIST; do
2782 v=$(toupper ${n%s})_LIST
2783 eval enable \$$v
2784 eval ${n}_if_any="\$$v"
2785 done
2786
2787 enable $ARCH_EXT_LIST
2788
2789 die_unknown(){
2790 echo "Unknown option \"$1\"."
2791 echo "See $0 --help for available options."
2792 exit 1
2793 }
2794
2795 print_3_columns() {
2796 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2797 }
2798
2799 show_list() {
2800 suffix=_$1
2801 shift
2802 echo $* | sed s/$suffix//g | print_3_columns
2803 exit 0
2804 }
2805
2806 rand_list(){
2807 IFS=', '
2808 set -- $*
2809 unset IFS
2810 for thing; do
2811 comp=${thing%:*}
2812 prob=${thing#$comp}
2813 prob=${prob#:}
2814 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2815 echo "prob ${prob:-0.5}"
2816 printf '%s\n' $comp
2817 done
2818 }
2819
2820 do_random(){
2821 action=$1
2822 shift
2823 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2824 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2825 }
2826
2827 for opt do
2828 optval="${opt#*=}"
2829 case "$opt" in
2830 --extra-ldflags=*)
2831 add_ldflags $optval
2832 ;;
2833 --extra-ldexeflags=*)
2834 add_ldexeflags $optval
2835 ;;
2836 --extra-ldsoflags=*)
2837 add_ldsoflags $optval
2838 ;;
2839 --extra-libs=*)
2840 add_extralibs $optval
2841 ;;
2842 --disable-devices)
2843 disable $INDEV_LIST $OUTDEV_LIST
2844 ;;
2845 --enable-debug=*)
2846 debuglevel="$optval"
2847 ;;
2848 --disable-programs)
2849 disable $PROGRAM_LIST
2850 ;;
2851 --disable-everything)
2852 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2853 ;;
2854 --disable-all)
2855 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2856 disable $LIBRARY_LIST $PROGRAM_LIST doc
2857 ;;
2858 --enable-random|--disable-random)
2859 action=${opt%%-random}
2860 do_random ${action#--} $COMPONENT_LIST
2861 ;;
2862 --enable-random=*|--disable-random=*)
2863 action=${opt%%-random=*}
2864 do_random ${action#--} $optval
2865 ;;
2866 --enable-*=*|--disable-*=*)
2867 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2868 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2869 eval list=\$$(toupper $thing)_LIST
2870 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2871 $action $(filter "$name" $list)
2872 ;;
2873 --enable-avserver|--disable-avserver*)
2874 warn "avserver has been removed, the ${opt} option is only"\
2875 "provided for compatibility and will be removed in the future"
2876 ;;
2877 --enable-yasm|--disable-yasm)
2878 warn "The ${opt} option is only provided for compatibility and will be\n"\
2879 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2880 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2881 ;;
2882 --enable-?*|--disable-?*)
2883 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2884 if is_in $option $COMPONENT_LIST; then
2885 test $action = disable && action=unset
2886 eval $action \$$(toupper ${option%s})_LIST
2887 elif is_in $option $CMDLINE_SELECT; then
2888 $action $option
2889 else
2890 die_unknown $opt
2891 fi
2892 ;;
2893 --list-*)
2894 NAME="${opt#--list-}"
2895 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2896 NAME=${NAME%s}
2897 eval show_list $NAME \$$(toupper $NAME)_LIST
2898 ;;
2899 --help|-h) show_help
2900 ;;
2901 --quiet|-q) quiet=yes
2902 ;;
2903 *)
2904 optname="${opt%%=*}"
2905 optname="${optname#--}"
2906 optname=$(echo "$optname" | sed 's/-/_/g')
2907 if is_in $optname $CMDLINE_SET; then
2908 eval $optname='$optval'
2909 elif is_in $optname $CMDLINE_APPEND; then
2910 append $optname "$optval"
2911 else
2912 die_unknown $opt
2913 fi
2914 ;;
2915 esac
2916 done
2917
2918 for e in $env; do
2919 eval "export $e"
2920 done
2921
2922 disabled logging && logfile=/dev/null
2923
2924 # Die early if licensing-related configure options are incompatible.
2925 die_license_disabled() {
2926 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2927 }
2928
2929 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2930 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2931 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2932
2933 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2934
2935 enabled_all gnutls openssl &&
2936 die "GnuTLS and OpenSSL must not be enabled at the same time."
2937
2938 # Disable all the library-specific components if the library itself
2939 # is disabled, see AVCODEC_LIST and following _LIST variables.
2940
2941 disable_components(){
2942 disabled ${1} && disable $(
2943 eval components="\$$(toupper ${1})_COMPONENTS"
2944 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2945 )
2946 }
2947
2948 map 'disable_components $v' $LIBRARY_LIST
2949
2950 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2951 set >> $logfile
2952
2953 case "$toolchain" in
2954 *-asan)
2955 cc_default="${toolchain%-asan}"
2956 add_cflags -fsanitize=address
2957 add_ldflags -fsanitize=address
2958 ;;
2959 *-msan)
2960 cc_default="${toolchain%-msan}"
2961 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2962 add_ldflags -fsanitize=memory
2963 ;;
2964 *-tsan)
2965 cc_default="${toolchain%-tsan}"
2966 add_cflags -fsanitize=thread -fPIE
2967 add_ldflags -fsanitize=thread -pie
2968 case "$toolchain" in
2969 gcc-tsan)
2970 add_cflags -fPIC
2971 add_ldflags -fPIC
2972 ;;
2973 esac
2974 ;;
2975 *-usan)
2976 cc_default="${toolchain%-usan}"
2977 add_cflags -fsanitize=undefined
2978 add_ldflags -fsanitize=undefined
2979 case "$toolchain" in
2980 clang-usan)
2981 add_cflags -O1
2982 ;;
2983 esac
2984 ;;
2985 valgrind-*)
2986 target_exec_default="valgrind"
2987 case "$toolchain" in
2988 valgrind-massif)
2989 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2990 ;;
2991 valgrind-memcheck)
2992 target_exec_args="--track-origins=yes --leak-check=full"
2993 ;;
2994 esac
2995 ;;
2996 msvc)
2997 # Check whether the current MSVC version needs the C99 converter.
2998 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2999 # support enough of C99 to build libav. Default to the new
3000 # behaviour if the regexp was unable to match anything, since this
3001 # successfully parses the version number of existing supported
3002 # versions that require the converter (MSVC 2010 and 2012).
3003 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3004 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3005 cc_default="cl"
3006 else
3007 cc_default="c99wrap cl"
3008 fi
3009 ld_default="$source_path/compat/windows/mslink"
3010 nm_default="dumpbin -symbols"
3011 ar_default="lib"
3012 case "$arch" in
3013 arm*)
3014 as_default="armasm"
3015 ;;
3016 esac
3017 target_os_default="win32"
3018 # Use a relative path for TMPDIR. This makes sure all the
3019 # ffconf temp files are written with a relative path, avoiding
3020 # issues with msys/win32 path conversion for MSVC parameters
3021 # such as -Fo<file> or -out:<file>.
3022 TMPDIR=.
3023 ;;
3024 icl)
3025 cc_default="icl"
3026 ld_default="xilink"
3027 nm_default="dumpbin -symbols"
3028 ar_default="xilib"
3029 target_os_default="win32"
3030 TMPDIR=.
3031 ;;
3032 gcov)
3033 add_cflags -fprofile-arcs -ftest-coverage
3034 add_ldflags -fprofile-arcs -ftest-coverage
3035 ;;
3036 llvm-cov)
3037 add_cflags -fprofile-arcs -ftest-coverage
3038 add_ldflags --coverage
3039 ;;
3040 hardened)
3041 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3042 add_cflags -fno-strict-overflow -fstack-protector-all
3043 add_ldflags -Wl,-z,relro -Wl,-z,now
3044 ;;
3045 ?*)
3046 die "Unknown toolchain $toolchain"
3047 ;;
3048 esac
3049
3050 test -n "$cross_prefix" && enable cross_compile
3051
3052 if enabled cross_compile; then
3053 test -n "$arch" && test -n "$target_os" ||
3054 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3055 fi
3056
3057 ar_default="${cross_prefix}${ar_default}"
3058 cc_default="${cross_prefix}${cc_default}"
3059 objcc_default="${cross_prefix}${objcc_default}"
3060 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3061 nm_default="${cross_prefix}${nm_default}"
3062 pkg_config_default="${cross_prefix}${pkg_config_default}"
3063 ranlib="${cross_prefix}${ranlib}"
3064 strip="${cross_prefix}${strip}"
3065
3066 sysinclude_default="${sysroot}/usr/include"
3067
3068 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3069 enabled cross_compile || host_cc_default=$cc
3070 set_default host_cc
3071
3072 if ! $pkg_config --version >/dev/null 2>&1; then
3073 warn "$pkg_config not found, library detection may fail."
3074 pkg_config=false
3075 fi
3076
3077 exesuf() {
3078 case $1 in
3079 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3080 esac
3081 }
3082
3083 EXESUF=$(exesuf $target_os)
3084 HOSTEXESUF=$(exesuf $host_os)
3085
3086 # set temporary file name
3087 : ${TMPDIR:=$TEMPDIR}
3088 : ${TMPDIR:=$TMP}
3089 : ${TMPDIR:=/tmp}
3090
3091 if ! check_cmd mktemp -u XXXXXX; then
3092 # simple replacement for missing mktemp
3093 # NOT SAFE FOR GENERAL USE
3094 mktemp(){
3095 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3096 echo "$tmpname"
3097 mkdir "$tmpname"
3098 }
3099 fi
3100
3101 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3102 die "Unable to create temporary directory in $TMPDIR."
3103
3104 tmpfile(){
3105 tmp="${AVTMPDIR}/test"$2
3106 (set -C; exec > $tmp) 2> /dev/null ||
3107 die "Unable to create temporary file in $AVTMPDIR."
3108 eval $1=$tmp
3109 }
3110
3111 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3112 trap 'exit 2' INT
3113
3114 tmpfile TMPASM .asm
3115 tmpfile TMPC .c
3116 tmpfile TMPE $EXESUF
3117 tmpfile TMPH .h
3118 tmpfile TMPO .o
3119 tmpfile TMPS .S
3120 tmpfile TMPSH .sh
3121 tmpfile TMPV .ver
3122
3123 unset -f mktemp
3124
3125 chmod +x $TMPE
3126
3127 # make sure we can execute files in $TMPDIR
3128 cat > $TMPSH 2>> $logfile <<EOF
3129 #! /bin/sh
3130 EOF
3131 chmod +x $TMPSH >> $logfile 2>&1
3132 if ! $TMPSH >> $logfile 2>&1; then
3133 cat <<EOF
3134 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3135 variable to another directory and make sure that it is not mounted noexec.
3136 EOF
3137 die "Sanity test failed."
3138 fi
3139
3140 armasm_flags(){
3141 for flag; do
3142 case $flag in
3143 # Filter out MSVC cl.exe options from cflags that shouldn't
3144 # be passed to gas-preprocessor
3145 -M[TD]*) ;;
3146 *) echo $flag ;;
3147 esac
3148 done
3149 }
3150
3151 cparser_flags(){
3152 for flag; do
3153 case $flag in
3154 -Wno-switch) echo -Wno-switch-enum ;;
3155 -Wno-format-zero-length) ;;
3156 -Wdisabled-optimization) ;;
3157 -Wno-pointer-sign) echo -Wno-other ;;
3158 *) echo $flag ;;
3159 esac
3160 done
3161 }
3162
3163 msvc_common_flags(){
3164 for flag; do
3165 case $flag in
3166 # In addition to specifying certain flags under the compiler
3167 # specific filters, they must be specified here as well or else the
3168 # generic catch all at the bottom will print the original flag.
3169 -Wall) ;;
3170 -Wextra) ;;
3171 -std=c99) ;;
3172 # Common flags
3173 -fomit-frame-pointer) ;;
3174 -g) echo -Z7 ;;
3175 -fno-math-errno) ;;
3176 -fno-common) ;;
3177 -fno-signed-zeros) ;;
3178 -fPIC) ;;
3179 -mthumb) ;;
3180 -march=*) ;;
3181 -lz) echo zlib.lib ;;
3182 -lx264) echo libx264.lib ;;
3183 -l*) echo ${flag#-l}.lib ;;
3184 -L*) echo -libpath:${flag#-L} ;;
3185 *) echo $flag ;;
3186 esac
3187 done
3188 }
3189
3190 msvc_flags(){
3191 msvc_common_flags "$@"
3192 for flag; do
3193 case $flag in
3194 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3195 -wd4554 ;;
3196 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3197 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3198 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3199 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3200 esac
3201 done
3202 }
3203
3204 icl_flags(){
3205 msvc_common_flags "$@"
3206 for flag; do
3207 case $flag in
3208 # Despite what Intel's documentation says -Wall, which is supported
3209 # on Windows, does enable remarks so disable them here.
3210 -Wall) echo $flag -Qdiag-disable:remark ;;
3211 -std=c99) echo -Qstd=c99 ;;
3212 esac
3213 done
3214 }
3215
3216 pgi_flags(){
3217 for flag; do
3218 case $flag in
3219 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3220 -fomit-frame-pointer) echo -Mnoframe ;;
3221 -g) echo -gopt ;;
3222 *) echo $flag ;;
3223 esac
3224 done
3225 }
3226
3227 suncc_flags(){
3228 for flag; do
3229 case $flag in
3230 -march=*|-mcpu=*)
3231 case "${flag#*=}" in
3232 native) echo -xtarget=native ;;
3233 v9|niagara) echo -xarch=sparc ;;
3234 ultrasparc) echo -xarch=sparcvis ;;
3235 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3236 i586|pentium) echo -xchip=pentium ;;
3237 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3238 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3239 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3240 pentium4*) echo -xtarget=pentium4 ;;
3241 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3242 *-sse3) echo -xarch=sse3 ;;
3243 core2) echo -xarch=ssse3 -xchip=core2 ;;
3244 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3245 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3246 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3247 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3248 k8|opteron|athlon64|athlon-fx)
3249 echo -xarch=sse2a ;;
3250 athlon*) echo -xarch=pentium_proa ;;
3251 esac
3252 ;;
3253 -std=c99) echo -xc99 ;;
3254 -fomit-frame-pointer) echo -xregs=frameptr ;;
3255 -fPIC) echo -KPIC -xcode=pic32 ;;
3256 -W*,*) echo $flag ;;
3257 -f*-*|-W*|-mimpure-text) ;;
3258 -shared) echo -G ;;
3259 *) echo $flag ;;
3260 esac
3261 done
3262 }
3263
3264 tms470_flags(){
3265 for flag; do
3266 case $flag in
3267 -march=*|-mcpu=*)
3268 case "${flag#*=}" in
3269 armv7-a|cortex-a*) echo -mv=7a8 ;;
3270 armv7-r|cortex-r*) echo -mv=7r4 ;;
3271 armv7-m|cortex-m*) echo -mv=7m3 ;;
3272 armv6*|arm11*) echo -mv=6 ;;
3273 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3274 echo -mv=5e ;;
3275 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3276 esac
3277 ;;
3278 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3279 -mfpu=vfp) echo --float_support=vfpv2 ;;
3280 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3281 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3282 -msoft-float) echo --float_support=vfplib ;;
3283 -O[0-3]|-mf=*) echo $flag ;;
3284 -g) echo -g -mn ;;
3285 -pds=*) echo $flag ;;
3286 -D*|-I*) echo $flag ;;
3287 --gcc|--abi=*) echo $flag ;;
3288 -me) echo $flag ;;
3289 esac
3290 done
3291 }
3292
3293 probe_cc(){
3294 pfx=$1
3295 _cc=$2
3296
3297 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3298 unset _ld_o _ldflags _ld_lib _ld_path
3299 unset _depflags _DEPCMD _DEPFLAGS
3300 _flags_filter=echo
3301
3302 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3303 _type=llvm_gcc
3304 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3305 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3306 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3307 _cflags_speed='-O3'
3308 _cflags_size='-Os'
3309 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3310 _type=gcc
3311 gcc_version=$($_cc --version | head -n1)
3312 gcc_basever=$($_cc -dumpversion)
3313 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3314 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3315 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3316 if ! $_cc -dumpversion | grep -q '^2\.'; then
3317 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3318 fi
3319 _cflags_speed='-O3'
3320 _cflags_size='-Os'
3321 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3322 _type=icc
3323 _ident=$($_cc --version | head -n1)
3324 _depflags='-MMD'
3325 _cflags_speed='-O3'
3326 _cflags_size='-Os'
3327 _cflags_noopt='-O1'
3328 elif $_cc -v 2>&1 | grep -q xlc; then
3329 _type=xlc
3330 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3331 _cflags_speed='-O5'
3332 _cflags_size='-O5 -qcompact'
3333 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3334 test -d "$sysroot" || die "No valid sysroot specified."
3335 _type=armcc
3336 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3337 armcc_conf="$PWD/armcc.conf"
3338 $_cc --arm_linux_configure \
3339 --arm_linux_config_file="$armcc_conf" \
3340 --configure_sysroot="$sysroot" \
3341 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3342 die "Error creating armcc configuration file."
3343 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3344 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3345 as_default="${cross_prefix}gcc"
3346 _depflags='-MMD'
3347 _cflags_speed='-O3'
3348 _cflags_size='-Os'
3349 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3350 _type=tms470
3351 _ident=$($_cc -version | head -n1 | tr -s ' ')
3352 _flags='--gcc --abi=eabi -me'
3353 _cc_e='-ppl -fe=$@'
3354 _cc_o='-fe=$@'
3355 _depflags='-ppa -ppd=$(@:.o=.d)'
3356 _cflags_speed='-O3 -mf=5'
3357 _cflags_size='-O3 -mf=2'
3358 _flags_filter=tms470_flags
3359 elif $_cc -v 2>&1 | grep -q clang; then
3360 _type=clang
3361 _ident=$($_cc --version 2>/dev/null | head -n1)
3362 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3363 _cflags_speed='-O3'
3364 _cflags_size='-Os'
3365 elif $_cc -V 2>&1 | grep -q Sun; then
3366 _type=suncc
3367 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3368 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3369 _DEPFLAGS='-xM1 -xc99'
3370 _ldflags='-std=c99'
3371 _cflags_speed='-O5'
3372 _cflags_size='-O5 -xspace'
3373 _flags_filter=suncc_flags
3374 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3375 _type=pathscale
3376 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3377 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3378 _cflags_speed='-O2'
3379 _cflags_size='-Os'
3380 _flags_filter='filter_out -Wdisabled-optimization'
3381 elif $_cc -v 2>&1 | grep -q Open64; then
3382 _type=open64
3383 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3384 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3385 _cflags_speed='-O2'
3386 _cflags_size='-Os'
3387 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3388 elif $_cc -V 2>&1 | grep -q Portland; then
3389 _type=pgi
3390 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3391 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3392 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3393 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3394 _cflags_noopt="-O1"
3395 _flags_filter=pgi_flags
3396 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3397 _type=armasm
3398 _ident=$($_cc | head -n1)
3399 # 4509: "This form of conditional instruction is deprecated"
3400 _flags="-nologo -ignore 4509"
3401 _flags_filter=armasm_flags
3402 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3403 _type=msvc
3404 _ident=$($_cc 2>&1 | head -n1)
3405 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3406 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3407 _cflags_speed="-O2"
3408 _cflags_size="-O1"
3409 _cflags_noopt="-O1"
3410 if $_cc -nologo- 2>&1 | grep -q Linker; then
3411 _ld_o='-out:$@'
3412 else
3413 _ld_o='-Fe$@'
3414 fi
3415 _cc_o='-Fo$@'
3416 _cc_e='-P -Fi$@'
3417 _flags_filter=msvc_flags
3418 _ld_lib='lib%.a'
3419 _ld_path='-libpath:'
3420 _flags='-nologo'
3421 elif $_cc 2>&1 | grep -q Intel; then
3422 _type=icl
3423 _ident=$($_cc 2>&1 | head -n1)
3424 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3425 # Not only is O3 broken on 13.x+ but it is slower on all previous
3426 # versions (tested) as well.
3427 _cflags_speed="-O2"
3428 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3429 if $_cc 2>&1 | grep -q Linker; then
3430 _ld_o='-out:$@'
3431 else
3432 _ld_o='-Fe$@'
3433 fi
3434 _cc_o='-Fo$@'
3435 _cc_e='-P'
3436 _flags_filter=icl_flags
3437 _ld_lib='lib%.a'
3438 _ld_path='-libpath:'
3439 # -Qdiag-error to make icl error when seeing certain unknown arguments
3440 _flags='-nologo -Qdiag-error:4044,10157'
3441 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3442 # with MSVC which enables it by default.
3443 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3444 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3445 # lld can emulate multiple different linkers; in ms link.exe mode,
3446 # the -? parameter gives the help output which contains an identifyable
3447 # string, while it gives an error in other modes.
3448 _type=lld-link
3449 # The link.exe mode doesn't have a switch for getting the version,
3450 # but we can force it back to gnu mode and get the version from there.
3451 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3452 _ld_o='-out:$@'
3453 _flags_filter=msvc_flags
3454 _ld_lib='lib%.a'
3455 _ld_path='-libpath:'
3456 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3457 _type=cparser
3458 _ident=$($_cc --version | head -n1)
3459 _depflags='-MMD'
3460 _cflags_speed='-O4'
3461 _cflags_size='-O2'
3462 _flags_filter=cparser_flags
3463 fi
3464
3465 eval ${pfx}_type=\$_type
3466 eval ${pfx}_ident=\$_ident
3467 }
3468
3469 set_ccvars(){
3470 eval ${1}_C=\${_cc_c-\${${1}_C}}
3471 eval ${1}_E=\${_cc_e-\${${1}_E}}
3472 eval ${1}_O=\${_cc_o-\${${1}_O}}
3473
3474 if [ -n "$_depflags" ]; then
3475 eval ${1}_DEPFLAGS=\$_depflags
3476 else
3477 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3478 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3479 eval DEP${1}FLAGS=\$_flags
3480 fi
3481 }
3482
3483 probe_cc cc "$cc"
3484 cflags_filter=$_flags_filter
3485 cflags_speed=$_cflags_speed
3486 cflags_size=$_cflags_size
3487 cflags_noopt=$_cflags_noopt
3488 add_cflags $_flags $_cflags
3489 cc_ldflags=$_ldflags
3490 set_ccvars CC
3491
3492 probe_cc hostcc "$host_cc"
3493 host_cflags_filter=$_flags_filter
3494 host_cflags_speed=$_cflags_speed
3495 add_host_cflags $_flags $_cflags
3496 set_ccvars HOSTCC
3497
3498 test -n "$cc_type" && enable $cc_type ||
3499 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3500
3501 : ${as_default:=$cc}
3502 : ${objcc_default:=$cc}
3503 : ${dep_cc_default:=$cc}
3504 : ${ld_default:=$cc}
3505 : ${host_ld_default:=$host_cc}
3506 set_default ar as objcc dep_cc ld host_ld
3507
3508 probe_cc as "$as"
3509 asflags_filter=$_flags_filter
3510 add_asflags $_flags $_cflags
3511 set_ccvars AS
3512
3513 probe_cc objcc "$objcc"
3514 objcflags_filter=$_flags_filter
3515 add_objcflags $_flags $_cflags
3516 set_ccvars OBJC
3517
3518 probe_cc ld "$ld"
3519 ldflags_filter=$_flags_filter
3520 add_ldflags $_flags $_ldflags
3521 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3522 LD_O=${_ld_o-$LD_O}
3523 LD_LIB=${_ld_lib-$LD_LIB}
3524 LD_PATH=${_ld_path-$LD_PATH}
3525
3526 probe_cc hostld "$host_ld"
3527 host_ldflags_filter=$_flags_filter
3528 add_host_ldflags $_flags $_ldflags
3529 HOSTLD_O=${_ld_o-$HOSTLD_O}
3530
3531 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3532 probe_cc depcc "$dep_cc"
3533 CCDEP=${_DEPCMD:-$DEPCMD}
3534 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3535 DEPCCFLAGS=$_flags
3536 fi
3537
3538 if $ar 2>&1 | grep -q Microsoft; then
3539 arflags="-nologo"
3540 ar_o='-out:$@'
3541 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3542 arflags="rq"
3543 ar_o='$@'
3544 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3545 arflags='-Xany -r -c'
3546 ar_o='$@'
3547 else
3548 arflags="rc"
3549 ar_o='$@'
3550 fi
3551
3552 add_cflags $extra_cflags
3553 add_objcflags $extra_objcflags
3554 add_asflags $extra_cflags
3555
3556 if test -n "$sysroot"; then
3557 case "$cc_type" in
3558 gcc|llvm_gcc|clang)
3559 add_cppflags --sysroot="$sysroot"
3560 add_ldflags --sysroot="$sysroot"
3561 ;;
3562 tms470)
3563 add_cppflags -I"$sysinclude"
3564 add_ldflags --sysroot="$sysroot"
3565 ;;
3566 esac
3567 fi
3568
3569 if test "$cpu" = host; then
3570 enabled cross_compile &&
3571 die "--cpu=host makes no sense when cross-compiling."
3572
3573 case "$cc_type" in
3574 gcc|llvm_gcc)
3575 check_native(){
3576 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3577 sed -n "/cc1.*$1=/{
3578 s/.*$1=\\([^ ]*\\).*/\\1/
3579 p
3580 q
3581 }" $TMPE
3582 }
3583 cpu=$(check_native -march || check_native -mcpu)
3584 ;;
3585 esac
3586
3587 test "${cpu:-host}" = host &&
3588 die "--cpu=host not supported with compiler $cc"
3589 fi
3590
3591 # Deal with common $arch aliases
3592 case "$arch" in
3593 aarch64|arm64)
3594 arch="aarch64"
3595 ;;
3596 arm*)
3597 arch="arm"
3598 ;;
3599 mips*|IP*)
3600 case "$arch" in
3601 *el)
3602 add_cppflags -EL
3603 add_ldflags -EL
3604 ;;
3605 *eb)
3606 add_cppflags -EB
3607 add_ldflags -EB
3608 ;;
3609 esac
3610 arch="mips"
3611 ;;
3612 parisc*|hppa*)
3613 arch="parisc"
3614 ;;
3615 "Power Macintosh"|ppc*|powerpc*)
3616 arch="ppc"
3617 ;;
3618 s390|s390x)
3619 arch="s390"
3620 ;;
3621 sh4|sh)
3622 arch="sh4"
3623 ;;
3624 sun4u|sparc*)
3625 arch="sparc"
3626 ;;
3627 tilegx|tile-gx)
3628 arch="tilegx"
3629 ;;
3630 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3631 arch="x86"
3632 ;;
3633 esac
3634
3635 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3636 enable $arch
3637
3638 # Add processor-specific flags
3639 if enabled aarch64; then
3640
3641 case $cpu in
3642 armv*)
3643 cpuflags="-march=$cpu"
3644 ;;
3645 *)
3646 cpuflags="-mcpu=$cpu"
3647 ;;
3648 esac
3649
3650 elif enabled alpha; then
3651
3652 cpuflags="-mcpu=$cpu"
3653
3654 elif enabled arm; then
3655
3656 check_arm_arch() {
3657 check_cpp_condition stddef.h \
3658 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3659 $cpuflags
3660 }
3661
3662 probe_arm_arch() {
3663 if check_arm_arch 4; then echo armv4
3664 elif check_arm_arch 4T; then echo armv4t
3665 elif check_arm_arch 5; then echo armv5
3666 elif check_arm_arch 5E; then echo armv5e
3667 elif check_arm_arch 5T; then echo armv5t
3668 elif check_arm_arch 5TE; then echo armv5te
3669 elif check_arm_arch 5TEJ; then echo armv5te
3670 elif check_arm_arch 6; then echo armv6
3671 elif check_arm_arch 6J; then echo armv6j
3672 elif check_arm_arch 6K; then echo armv6k
3673 elif check_arm_arch 6Z; then echo armv6z
3674 elif check_arm_arch 6ZK; then echo armv6zk
3675 elif check_arm_arch 6T2; then echo armv6t2
3676 elif check_arm_arch 7; then echo armv7
3677 elif check_arm_arch 7A 7_A; then echo armv7-a
3678 elif check_arm_arch 7S; then echo armv7-a
3679 elif check_arm_arch 7R 7_R; then echo armv7-r
3680 elif check_arm_arch 7M 7_M; then echo armv7-m
3681 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3682 elif check_arm_arch 8A 8_A; then echo armv8-a
3683 fi
3684 }
3685
3686 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3687
3688 case $cpu in
3689 armv*)
3690 cpuflags="-march=$cpu"
3691 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3692 ;;
3693 *)
3694 cpuflags="-mcpu=$cpu"
3695 case $cpu in
3696 cortex-a*) subarch=armv7a ;;
3697 cortex-r*) subarch=armv7r ;;
3698 cortex-m*) enable thumb; subarch=armv7m ;;
3699 arm11*) subarch=armv6 ;;
3700 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3701 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3702 *) subarch=$(probe_arm_arch) ;;
3703 esac
3704 ;;
3705 esac
3706
3707 case "$subarch" in
3708 armv5t*) enable fast_clz ;;
3709 armv[6-8]*) enable fast_clz fast_unaligned ;;
3710 esac
3711
3712 elif enabled avr32; then
3713
3714 case $cpu in
3715 ap7[02]0[0-2])
3716 subarch="avr32_ap"
3717 cpuflags="-mpart=$cpu"
3718 ;;
3719 ap)
3720 subarch="avr32_ap"
3721 cpuflags="-march=$cpu"
3722 ;;
3723 uc3[ab]*)
3724 subarch="avr32_uc"
3725 cpuflags="-mcpu=$cpu"
3726 ;;
3727 uc)
3728 subarch="avr32_uc"
3729 cpuflags="-march=$cpu"
3730 ;;
3731 esac
3732
3733 elif enabled bfin; then
3734
3735 cpuflags="-mcpu=$cpu"
3736
3737 elif enabled mips; then
3738
3739 cpuflags="-march=$cpu"
3740
3741 elif enabled ppc; then
3742
3743 disable ldbrx
3744
3745 case $(tolower $cpu) in
3746 601|ppc601|powerpc601)
3747 cpuflags="-mcpu=601"
3748 disable altivec
3749 ;;
3750 603*|ppc603*|powerpc603*)
3751 cpuflags="-mcpu=603"
3752 disable altivec
3753 ;;
3754 604*|ppc604*|powerpc604*)
3755 cpuflags="-mcpu=604"
3756 disable altivec
3757 ;;
3758 g3|75*|ppc75*|powerpc75*)
3759 cpuflags="-mcpu=750"
3760 disable altivec
3761 ;;
3762 g4|745*|ppc745*|powerpc745*)
3763 cpuflags="-mcpu=7450"
3764 disable vsx
3765 ;;
3766 74*|ppc74*|powerpc74*)
3767 cpuflags="-mcpu=7400"
3768 disable vsx
3769 ;;
3770 g5|970|ppc970|powerpc970)
3771 cpuflags="-mcpu=970"
3772 disable vsx
3773 ;;
3774 power[3-6]*)
3775 cpuflags="-mcpu=$cpu"
3776 disable vsx
3777 ;;
3778 power[7-8]*)
3779 cpuflags="-mcpu=$cpu"
3780 enable ldbrx
3781 ;;
3782 cell)
3783 cpuflags="-mcpu=cell"
3784 enable ldbrx
3785 disable vsx
3786 ;;
3787 e500mc)
3788 cpuflags="-mcpu=e500mc"
3789 disable altivec
3790 ;;
3791 e500v2)
3792 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3793 disable altivec
3794 disable dcbzl
3795 ;;
3796 e500)
3797 cpuflags="-mcpu=8540 -mhard-float"
3798 disable altivec
3799 disable dcbzl
3800 ;;
3801 esac
3802
3803 elif enabled sparc; then
3804
3805 case $cpu in
3806 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3807 cpuflags="-mcpu=$cpu"
3808 ;;
3809 ultrasparc*|niagara[234])
3810 cpuflags="-mcpu=$cpu"
3811 ;;
3812 esac
3813
3814 elif enabled x86; then
3815
3816 case $cpu in
3817 i[345]86|pentium)
3818 cpuflags="-march=$cpu"
3819 disable i686
3820 disable mmx
3821 ;;
3822 # targets that do NOT support nopl and conditional mov (cmov)
3823 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3824 cpuflags="-march=$cpu"
3825 disable i686
3826 ;;
3827 # targets that do support nopl and conditional mov (cmov)
3828 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3829 cpuflags="-march=$cpu"
3830 enable i686
3831 enable fast_cmov
3832 ;;
3833 # targets that do support conditional mov but on which it's slow
3834 pentium4|pentium4m|prescott|nocona)
3835 cpuflags="-march=$cpu"
3836 enable i686
3837 disable fast_cmov
3838 ;;
3839 esac
3840
3841 fi
3842
3843 if [ "$cpu" != generic ]; then
3844 add_cflags $cpuflags
3845 add_asflags $cpuflags
3846 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3847 fi
3848
3849 # compiler sanity check
3850 check_exec <<EOF
3851 int main(void){ return 0; }
3852 EOF
3853 if test "$?" != 0; then
3854 echo "$cc is unable to create an executable file."
3855 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3856 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3857 echo "Only do this if you know what cross compiling means."
3858 fi
3859 die "C compiler test failed."
3860 fi
3861
3862 add_cppflags -D_ISOC99_SOURCE
3863
3864 # some compilers silently accept -std=c11, so we also need to check that the
3865 # version macro is defined properly
3866 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3867 add_cflags -std=c11 ||
3868 check_cflags -std=c99
3869
3870 check_cppflags -D_FILE_OFFSET_BITS=64
3871 check_cppflags -D_LARGEFILE_SOURCE
3872
3873 add_host_cppflags -D_ISOC99_SOURCE
3874 check_host_cflags -std=c99
3875 check_host_cflags -Wall
3876 check_host_cflags $host_cflags_speed
3877
3878 check_64bit(){
3879 arch32=$1
3880 arch64=$2
3881 expr=$3
3882 check_code cc "" "int test[2*($expr) - 1]" &&
3883 subarch=$arch64 || subarch=$arch32
3884 }
3885
3886 case "$arch" in
3887 aarch64|alpha|ia64)
3888 spic=$shared
3889 ;;
3890 mips)
3891 check_64bit mips mips64 '_MIPS_SIM > 1'
3892 spic=$shared
3893 ;;
3894 parisc)
3895 check_64bit parisc parisc64 'sizeof(void *) > 4'
3896 spic=$shared
3897 ;;
3898 ppc)
3899 check_64bit ppc ppc64 'sizeof(void *) > 4'
3900 spic=$shared
3901 ;;
3902 s390)
3903 check_64bit s390 s390x 'sizeof(void *) > 4'
3904 spic=$shared
3905 ;;
3906 sparc)
3907 check_64bit sparc sparc64 'sizeof(void *) > 4'
3908 spic=$shared
3909 ;;
3910 x86)
3911 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3912 if test "$subarch" = "x86_64"; then
3913 spic=$shared
3914 fi
3915 ;;
3916 esac
3917
3918 enable $subarch
3919 enabled spic && enable_weak pic
3920
3921 enabled x86_64 && objformat=elf64 || objformat="elf32"
3922
3923 # OS specific
3924 case $target_os in
3925 aix)
3926 SHFLAGS=-shared
3927 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3928 enabled shared && add_ldflags -Wl,-brtl
3929 ;;
3930 android)
3931 disable symver
3932 enable section_data_rel_ro
3933 SLIB_INSTALL_NAME='$(SLIBNAME)'
3934 SLIB_INSTALL_LINKS=
3935 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3936 ;;
3937 haiku)
3938 prefix_default="/boot/common"
3939 network_extralibs="-lnetwork"
3940 host_extralibs=
3941 ;;
3942 sunos)
3943 SHFLAGS='-shared -Wl,-h,$$(@F)'
3944 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3945 network_extralibs="-lsocket -lnsl"
3946 # When using suncc to build, the Solaris linker will mark
3947 # an executable with each instruction set encountered by
3948 # the Solaris assembler. As our libraries contain their own
3949 # guards for processor-specific code, instead suppress
3950 # generation of the HWCAPS ELF section on Solaris x86 only.
3951 enabled_all suncc x86 &&
3952 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3953 add_ldflags -Wl,-M,mapfile
3954 nm_default='nm -P -g'
3955 version_script='-M'
3956 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3957 ;;
3958 netbsd)
3959 disable symver
3960 oss_indev_extralibs="-lossaudio"
3961 oss_outdev_extralibs="-lossaudio"
3962 ;;
3963 openbsd|bitrig)
3964 disable symver
3965 SHFLAGS='-shared'
3966 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3967 SLIB_INSTALL_LINKS=
3968 oss_indev_extralibs="-lossaudio"
3969 oss_outdev_extralibs="-lossaudio"
3970 ;;
3971 dragonfly)
3972 disable symver
3973 ;;
3974 freebsd)
3975 ;;
3976 bsd/os)
3977 add_extralibs -lpoll -lgnugetopt
3978 ;;
3979 darwin)
3980 enabled ppc && add_asflags -force_cpusubtype_ALL
3981 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3982 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3983 add_ldflags -Wl,-dynamic,-search_paths_first
3984 check_cflags -Werror=partial-availability
3985 SLIBSUF=".dylib"
3986 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3987 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3988 enabled x86_64 && objformat="macho64" || objformat="macho32"
3989 enabled_any pic shared ||
3990 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3991 check_header dispatch/dispatch.h &&
3992 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3993 if test -n "$sysroot"; then
3994 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3995 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3996 fi
3997 ;;
3998 msys*)
3999 die "Native MSYS builds are discouraged, please use the MINGW environment."
4000 ;;
4001 mingw32*|mingw64*)
4002 target_os=mingw32
4003 LIBTARGET=i386
4004 if enabled x86_64; then
4005 LIBTARGET="i386:x86-64"
4006 fi
4007 if enabled shared; then
4008 # Cannot build both shared and static libs when using dllexport.
4009 disable static
4010 fi
4011 check_ldflags -Wl,--nxcompat
4012 check_ldflags -Wl,--dynamicbase
4013 shlibdir_default="$bindir_default"
4014 SLIBPREF=""
4015 SLIBSUF=".dll"
4016 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4017 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4018 SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4019 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4020 SLIB_INSTALL_LINKS=
4021 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4022 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4023 SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4024 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4025 enabled x86_64 && objformat="win64" || objformat="win32"
4026 dlltool="${cross_prefix}dlltool"
4027 ranlib=:
4028 enable dos_paths
4029 ;;
4030 win32|win64)
4031 disable symver
4032 if enabled shared; then
4033 # Link to the import library instead of the normal static library
4034 # for shared libs.
4035 LD_LIB='%.lib'
4036 # Cannot build both shared and static libs with MSVC or icl.
4037 disable static
4038 fi
4039 shlibdir_default="$bindir_default"
4040 SLIBPREF=""
4041 SLIBSUF=".dll"
4042 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4043 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4044 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4045 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4046 SLIB_INSTALL_LINKS=
4047 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4048 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4049 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4050 enabled x86_64 && objformat="win64" || objformat="win32"
4051 ranlib=:
4052 enable dos_paths
4053 ;;
4054 cygwin*)
4055 target_os=cygwin
4056 shlibdir_default="$bindir_default"
4057 SLIBPREF="cyg"
4058 SLIBSUF=".dll"
4059 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4060 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4061 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4062 SLIB_INSTALL_LINKS=
4063 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4064 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4065 enabled x86_64 && objformat="win64" || objformat="win32"
4066 enable dos_paths
4067 ;;
4068 *-dos|freedos|opendos)
4069 network_extralibs="-lsocket"
4070 objformat="coff"
4071 enable dos_paths
4072 add_cppflags -U__STRICT_ANSI__
4073 ;;
4074 linux)
4075 enable dv1394
4076 enable section_data_rel_ro
4077 ;;
4078 irix*)
4079 target_os=irix
4080 ranlib="echo ignoring ranlib"
4081 ;;
4082 os/2*)
4083 ln_s="cp -f"
4084 objformat="aout"
4085 add_cppflags -D_GNU_SOURCE
4086 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4087 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4088 LIBSUF="_s.a"
4089 SLIBPREF=""
4090 SLIBSUF=".dll"
4091 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4092 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4093 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4094 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4095 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4096 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4097 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4098 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4099 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4100 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4101 enable dos_paths
4102 ;;
4103 gnu/kfreebsd)
4104 add_cppflags -D_BSD_SOURCE
4105 ;;
4106 gnu)
4107 ;;
4108 qnx)
4109 add_cppflags -D_QNX_SOURCE
4110 network_extralibs="-lsocket"
4111 ;;
4112 symbian)
4113 SLIBSUF=".dll"
4114 enable dos_paths
4115 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4116 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4117 add_ldflags -Wl,--target1-abs,--no-undefined \
4118 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4119 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4120 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4121 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4122 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4123 ;;
4124 minix)
4125 ;;
4126 none)
4127 ;;
4128 *)
4129 die "Unknown OS '$target_os'."
4130 ;;
4131 esac
4132
4133 # determine libc flavour
4134
4135 probe_libc(){
4136 pfx=$1
4137 pfx_no_=${pfx%_}
4138 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4139 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4140 eval ${pfx}libc_type=uclibc
4141 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4142 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4143 eval ${pfx}libc_type=glibc
4144 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4145 # MinGW headers can be installed on Cygwin, so check for newlib first.
4146 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4147 eval ${pfx}libc_type=newlib
4148 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4149 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4150 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4151 eval ${pfx}libc_type=mingw64
4152 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4153 eval test \$${pfx_no_}cc_type = "gcc" &&
4154 add_${pfx}cppflags -D__printf__=__gnu_printf__
4155 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4156 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4157 eval ${pfx}libc_type=mingw32
4158 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4159 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4160 die "ERROR: MinGW32 runtime version must be >= 3.15."
4161 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4162 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4163 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4164 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4165 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4166 eval test \$${pfx_no_}cc_type = "gcc" &&
4167 add_${pfx}cppflags -D__printf__=__gnu_printf__
4168 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4169 eval ${pfx}libc_type=msvcrt
4170 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4171 if [ "$pfx" = host_ ]; then
4172 add_host_cppflags -Dsnprintf=_snprintf
4173 else
4174 add_compat strtod.o strtod=avpriv_strtod
4175 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4176 _snprintf=avpriv_snprintf \
4177 vsnprintf=avpriv_vsnprintf
4178 fi
4179 fi
4180 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4181 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4182 # 0x601 by default unless something else is set by the user.
4183 # This can easily lead to us detecting functions only present
4184 # in such new versions and producing binaries requiring windows 7.0.
4185 # Therefore explicitly set the default to XP unless the user has
4186 # set something else on the command line.
4187 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4188 # family. For these cases, configure is free to use any functions
4189 # found in the SDK headers by default. (Alternatively, we could force
4190 # _WIN32_WINNT to 0x0602 in that case.)
4191 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4192 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4193 #ifdef WINAPI_FAMILY
4194 #include <winapifamily.h>
4195 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4196 #error not desktop
4197 #endif
4198 #endif
4199 EOF
4200 if [ "$pfx" = "" ]; then
4201 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4202 fi
4203 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4204 eval ${pfx}libc_type=klibc
4205 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4206 eval ${pfx}libc_type=bionic
4207 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4208 eval ${pfx}libc_type=solaris
4209 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4210 else
4211 eval ${pfx}libc_type=default
4212 add_${pfx}cppflags -D_DEFAULT_SOURCE
4213 fi
4214 }
4215
4216 probe_libc
4217 test -n "$libc_type" && enable libc_$libc_type
4218 probe_libc host_
4219 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4220
4221 # hacks for compiler/libc/os combinations
4222
4223 case $libc_type in
4224 bionic)
4225 add_compat strtod.o strtod=avpriv_strtod
4226 ;;
4227 glibc)
4228 if enabled tms470; then
4229 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4230 add_cppflags -D__USER_LABEL_PREFIX__=
4231 add_cppflags -D__builtin_memset=memset
4232 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4233 add_cflags -pds=48 # incompatible redefinition of macro
4234 fi
4235 ;;
4236 esac
4237
4238 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4239 add_cppflags '-I\$(SRC_PATH)/compat/float'
4240
4241 esc(){
4242 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4243 }
4244
4245 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4246
4247 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4248
4249 set_default $PATHS_LIST
4250 set_default nm
4251
4252 # we need to build at least one lib type
4253 if ! enabled_any static shared; then
4254 cat <<EOF
4255 At least one library type must be built.
4256 Specify --enable-static to build the static libraries or --enable-shared to
4257 build the shared libraries as well. To only build the shared libraries specify
4258 --disable-static in addition to --enable-shared.
4259 EOF
4260 exit 1
4261 fi
4262
4263 disabled optimizations || check_cflags -fomit-frame-pointer
4264
4265 enable_weak_pic() {
4266 disabled pic && return
4267 enable pic
4268 add_cppflags -DPIC
4269 case "$target_os" in
4270 mingw*|cygwin*)
4271 ;;
4272 *)
4273 add_cflags -fPIC
4274 ;;
4275 esac
4276 add_asflags -fPIC
4277 }
4278
4279 enabled pic && enable_weak_pic
4280
4281 check_cc <<EOF || die "Symbol mangling check failed."
4282 int ff_extern;
4283 EOF
4284 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4285 extern_prefix=${sym%%ff_extern*}
4286
4287 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4288
4289 _restrict=
4290 for restrict_keyword in restrict __restrict__ __restrict; do
4291 check_cc <<EOF && _restrict=$restrict_keyword && break
4292 void foo(char * $restrict_keyword p);
4293 EOF
4294 done
4295
4296 check_cc <<EOF && enable pragma_deprecated
4297 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4298 EOF
4299
4300 check_cc <<EOF && enable attribute_packed
4301 struct { int x; } __attribute__((packed)) x;
4302 EOF
4303
4304 check_cc <<EOF && enable attribute_may_alias
4305 union { int x; } __attribute__((may_alias)) x;
4306 EOF
4307
4308 check_cc <<EOF || die "endian test failed"
4309 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4310 EOF
4311 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4312
4313 check_gas() {
4314 log "check_gas using '$as' as AS"
4315 # :vararg is used on aarch64, arm and ppc altivec
4316 check_as <<EOF || return 1
4317 .macro m n, y:vararg=0
4318 \n: .int \y
4319 .endm
4320 m x
4321 EOF
4322 # .altmacro is only used in arm asm
4323 ! enabled arm || check_as <<EOF || return 1
4324 .altmacro
4325 EOF
4326 enable gnu_as
4327 return 0
4328 }
4329
4330 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4331 nogas=:
4332 enabled_any arm aarch64 && nogas=die
4333 enabled_all ppc altivec && nogas=warn
4334 as_noop=-v
4335
4336 case $as_type in
4337 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4338 gcc) gaspp_as_type=gas ;;
4339 *) gaspp_as_type=$as_type ;;
4340 esac
4341
4342 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4343
4344 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4345 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4346
4347 if ! check_gas ; then
4348 as=${gas:=$as}
4349 check_gas || \
4350 $nogas "GNU assembler not found, install/update gas-preprocessor"
4351 fi
4352
4353 check_as <<EOF && enable as_func
4354 .func test
4355 .endfunc
4356 EOF
4357 fi
4358
4359 check_inline_asm inline_asm_labels '"1:\n"'
4360
4361 if enabled aarch64; then
4362 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4363 # internal assembler in clang 3.3 does not support this instruction
4364 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4365 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4366
4367 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4368
4369 elif enabled alpha; then
4370
4371 check_cflags -mieee
4372
4373 elif enabled arm; then
4374