build: Add an option for passing linker flags to the shared library build
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
31 export FF_CONF_EXEC
32 if test "0$FF_CONF_EXEC" -lt 1; then
33 FF_CONF_EXEC=1
34 try_exec bash "$0" "$@"
35 fi
36 if test "0$FF_CONF_EXEC" -lt 2; then
37 FF_CONF_EXEC=2
38 try_exec ksh "$0" "$@"
39 fi
40 if test "0$FF_CONF_EXEC" -lt 3; then
41 FF_CONF_EXEC=3
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
43 fi
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
53 fi
54 exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
78
79 Standard options:
80 --logfile=FILE log tests and output to FILE [avbuild/config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
98
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
107
108 Program options:
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
114
115 Component options:
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
137
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
174
175 External library support:
176
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
183
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
186
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
189
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libjack JACK audio sound server
207 --enable-libkvazaar HEVC video encoding
208 --enable-libmp3lame MP3 audio encoding
209 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210 --enable-libopencore-amrwb AMR-WB audio decoding
211 --enable-libopencv computer vision
212 --enable-libopenh264 H.264 video encoding/decoding
213 --enable-libopenjpeg JPEG 2000 image encoding/decoding
214 --enable-libopus Opus audio encoding/decoding
215 --enable-libpulse Pulseaudio sound server
216 --enable-librtmp RTMP streaming
217 --enable-libschroedinger Dirac video encoding/decoding
218 --enable-libsnappy snappy compression
219 --enable-libspeex Speex audio encoding/decoding
220 --enable-libtheora Theora video encoding/decoding
221 --enable-libtwolame MP2 audio encoding
222 --enable-libvo-aacenc AAC audio encoding
223 --enable-libvo-amrwbenc AMR-WB audio encoding
224 --enable-libvorbis Vorbis audio encoding/decoding
225 --enable-libvpx VP* video encoding/decoding
226 --enable-libwavpack Wavpack audio encoding/decoding
227 --enable-libwebp WebP image encoding/decoding
228 --enable-libx264 H.264 video encoding
229 --enable-libx265 HEVC video encoding
230 --enable-libxavs Chinese AVS video encoding
231 --enable-libxcb X window system protocol communication
232 --enable-libxcb-shm X11 shm communication [auto]
233 --enable-libxcb-xfixes X11 mouse rendering [auto]
234 --enable-libxvid MPEG-4 ASP video encoding
235 --enable-openssl crypto
236 --enable-zlib compression [autodetect]
237
238 The following libraries provide various hardware acceleration features:
239 --enable-cuda Nvidia CUDA (dynamically linked)
240 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
241 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
242 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
243 --enable-libnpp Nvidia CUDA processing
244 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
245 --enable-nvenc Nvidia video encoding
246 --enable-omx OpenMAX IL
247 --enable-omx-rpi OpenMAX IL for Raspberry Pi
248 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
249 --enable-vda Apple Video Decode Acceleration [auto]
250 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251
252 Toolchain options:
253 --arch=ARCH select architecture [$arch]
254 --cpu=CPU select the minimum required CPU (affects
255 instruction selection, may crash on older CPUs)
256 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
257 --enable-cross-compile assume a cross-compiler is used
258 --sysroot=PATH root of cross-build tree
259 --sysinclude=PATH location of cross-build system headers
260 --target-os=OS compiler targets OS [$target_os]
261 --target-exec=CMD command to run executables on target
262 --target-path=DIR path to view of build directory on target
263 --target-samples=DIR path to samples directory on target
264 --toolchain=NAME set tool defaults according to NAME
265 --nm=NM use nm tool
266 --ar=AR use archive tool AR [$ar_default]
267 --as=AS use assembler AS [$as_default]
268 --cc=CC use C compiler CC [$cc_default]
269 --objcc=OCC use ObjC compiler OCC [$cc_default]
270 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
271 --ld=LD use linker LD
272 --x86asmexe=X86ASM use x86 assembler X86ASM
273 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
274 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
275 --host-cc=HOSTCC use host C compiler HOSTCC
276 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
277 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
278 --host-ld=HOSTLD use host linker HOSTLD
279 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
280 --host-libs=HLIBS use libs HLIBS when linking for host
281 --host-os=OS compiler host OS [$target_os]
282 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
283 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
284 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
285 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
286 --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
287 --extra-libs=ELIBS add ELIBS [$ELIBS]
288 --extra-version=STRING version string suffix []
289 --optflags=OPTFLAGS override optimization-related compiler flags
290 --enable-pic build position-independent code
291 --enable-thumb compile for Thumb instruction set
292 --enable-lto use link-time optimization
293 --env="ENV=override" override the environment variables
294
295 Advanced options (experts only):
296 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
297 --custom-allocator=NAME use a supported custom allocator
298 --disable-symver disable symbol versioning
299 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
300 --disable-safe-bitstream-reader
301 disable buffer boundary checking in bitreaders
302 (faster, but may crash)
303 --enable-sram allow use of on-chip SRAM
304
305 Optimization options (experts only):
306 --disable-asm disable all assembly optimizations
307 --disable-altivec disable AltiVec optimizations
308 --disable-vsx disable VSX optimizations
309 --disable-power8 disable POWER8 optimizations
310 --disable-amd3dnow disable 3DNow! optimizations
311 --disable-amd3dnowext disable 3DNow! extended optimizations
312 --disable-mmx disable MMX optimizations
313 --disable-mmxext disable MMXEXT optimizations
314 --disable-sse disable SSE optimizations
315 --disable-sse2 disable SSE2 optimizations
316 --disable-sse3 disable SSE3 optimizations
317 --disable-ssse3 disable SSSE3 optimizations
318 --disable-sse4 disable SSE4 optimizations
319 --disable-sse42 disable SSE4.2 optimizations
320 --disable-avx disable AVX optimizations
321 --disable-xop disable XOP optimizations
322 --disable-fma3 disable FMA3 optimizations
323 --disable-fma4 disable FMA4 optimizations
324 --disable-avx2 disable AVX2 optimizations
325 --disable-armv5te disable armv5te optimizations
326 --disable-armv6 disable armv6 optimizations
327 --disable-armv6t2 disable armv6t2 optimizations
328 --disable-vfp disable VFP optimizations
329 --disable-neon disable NEON optimizations
330 --disable-inline-asm disable use of inline assembly
331 --disable-x86asm disable use of standalone x86 assembly
332
333 Developer options (useful when working on Libav itself):
334 --disable-debug disable debugging symbols
335 --enable-debug=LEVEL set the debug level [$debuglevel]
336 --disable-optimizations disable compiler optimizations
337 --enable-extra-warnings enable more compiler warnings
338 --samples=PATH location of test samples for FATE, if not set use
339 \$LIBAV_SAMPLES at make invocation time.
340 --enable-neon-clobber-test check NEON registers for clobbering (should be
341 used only for debugging purposes)
342 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
343 should be used only for debugging purposes)
344 --enable-random randomly enable/disable components
345 --disable-random
346 --enable-random=LIST randomly enable/disable specific components or
347 --disable-random=LIST component groups. LIST is a comma-separated list
348 of NAME[:PROB] entries where NAME is a component
349 (group) and PROB the probability associated with
350 NAME (default 0.5).
351 --random-seed=VALUE seed value for --enable/disable-random
352 --disable-valgrind-backtrace do not print a backtrace under Valgrind
353 (only applies to --disable-optimizations builds)
354 --ignore-tests=TESTS comma-separated list (without "fate-" prefix
355 in the name) of tests whose result is ignored
356
357 NOTE: Object files are built at the place where configure is launched.
358 EOF
359 exit 0
360 }
361
362 quotes='""'
363
364 log(){
365 echo "$@" >> $logfile
366 }
367
368 log_file(){
369 log BEGIN $1
370 i=1
371 while read line; do
372 printf '%5s %s\n' "${i}" "${line}"
373 i=$(($i+1))
374 done < $1 >> $logfile
375 log END $1
376 }
377
378 echolog(){
379 log "$@"
380 echo "$@"
381 }
382
383 warn(){
384 log "WARNING: $*"
385 WARNINGS="${WARNINGS}WARNING: $*\n"
386 }
387
388 die(){
389 echolog "$@"
390 cat <<EOF
391
392 If you think configure made a mistake, make sure you are using the latest
393 version from Git. If the latest version fails, report the problem to the
394 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
395 EOF
396 if disabled logging; then
397 cat <<EOF
398 Rerun configure with logging enabled (do not use --disable-logging), and
399 include the log this produces with your report.
400 EOF
401 else
402 cat <<EOF
403 Include the log file "$logfile" produced by configure as this will help
404 solving the problem.
405 EOF
406 fi
407 exit 1
408 }
409
410 # Avoid locale weirdness, besides we really just want to translate ASCII.
411 toupper(){
412 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
413 }
414
415 tolower(){
416 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
417 }
418
419 c_escape(){
420 echo "$*" | sed 's/["\\]/\\\0/g'
421 }
422
423 sh_quote(){
424 v=$(echo "$1" | sed "s/'/'\\\\''/g")
425 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
426 echo "$v"
427 }
428
429 cleanws(){
430 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
431 }
432
433 filter(){
434 pat=$1
435 shift
436 for v; do
437 eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
438 done
439 }
440
441 filter_out(){
442 pat=$1
443 shift
444 for v; do
445 eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
446 done
447 }
448
449 map(){
450 m=$1
451 shift
452 for v; do eval $m; done
453 }
454
455 add_suffix(){
456 suffix=$1
457 shift
458 for v; do echo ${v}${suffix}; done
459 }
460
461 set_all(){
462 value=$1
463 shift
464 for var in $*; do
465 eval $var=$value
466 done
467 }
468
469 set_weak(){
470 value=$1
471 shift
472 for var; do
473 eval : \${$var:=$value}
474 done
475 }
476
477 sanitize_var_name(){
478 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
479 }
480
481 set_sanitized(){
482 var=$1
483 shift
484 eval $(sanitize_var_name "$var")='$*'
485 }
486
487 get_sanitized(){
488 eval echo \$$(sanitize_var_name "$1")
489 }
490
491 pushvar(){
492 for pvar in $*; do
493 eval level=\${${pvar}_level:=0}
494 eval ${pvar}_${level}="\$$pvar"
495 eval ${pvar}_level=$(($level+1))
496 done
497 }
498
499 popvar(){
500 for pvar in $*; do
501 eval level=\${${pvar}_level:-0}
502 test $level = 0 && continue
503 eval level=$(($level-1))
504 eval $pvar="\${${pvar}_${level}}"
505 eval ${pvar}_level=$level
506 eval unset ${pvar}_${level}
507 done
508 }
509
510 enable(){
511 set_all yes $*
512 }
513
514 disable(){
515 set_all no $*
516 }
517
518 enable_weak(){
519 set_weak yes $*
520 }
521
522 disable_weak(){
523 set_weak no $*
524 }
525
526 enable_sanitized(){
527 for var; do
528 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529 done
530 }
531
532 disable_sanitized(){
533 for var; do
534 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
535 done
536 }
537
538 do_enable_deep(){
539 for var; do
540 enabled $var && continue
541 eval sel="\$${var}_select"
542 eval sgs="\$${var}_suggest"
543 pushvar var sgs
544 enable_deep $sel
545 popvar sgs
546 enable_deep_weak $sgs
547 popvar var
548 done
549 }
550
551 enable_deep(){
552 do_enable_deep $*
553 enable $*
554 }
555
556 enable_deep_weak(){
557 for var; do
558 disabled $var && continue
559 pushvar var
560 do_enable_deep $var
561 popvar var
562 enable_weak $var
563 done
564 }
565
566 enabled(){
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xyes"
569 }
570
571 disabled(){
572 test "${1#!}" = "$1" && op== || op=!=
573 eval test "x\$${1#!}" $op "xno"
574 }
575
576 enabled_all(){
577 for opt; do
578 enabled $opt || return 1
579 done
580 }
581
582 disabled_all(){
583 for opt; do
584 disabled $opt || return 1
585 done
586 }
587
588 enabled_any(){
589 for opt; do
590 enabled $opt && return 0
591 done
592 }
593
594 disabled_any(){
595 for opt; do
596 disabled $opt && return 0
597 done
598 return 1
599 }
600
601 set_default(){
602 for opt; do
603 eval : \${$opt:=\$${opt}_default}
604 done
605 }
606
607 is_in(){
608 value=$1
609 shift
610 for var in $*; do
611 [ $var = $value ] && return 0
612 done
613 return 1
614 }
615
616 check_deps(){
617 for cfg; do
618 enabled ${cfg}_checking && die "Circular dependency for $cfg."
619 disabled ${cfg}_checking && continue
620 enable ${cfg}_checking
621
622 eval dep_all="\$${cfg}_deps"
623 eval dep_any="\$${cfg}_deps_any"
624 eval dep_con="\$${cfg}_conflict"
625 eval dep_sel="\$${cfg}_select"
626 eval dep_sgs="\$${cfg}_suggest"
627 eval dep_ifa="\$${cfg}_if"
628 eval dep_ifn="\$${cfg}_if_any"
629
630 pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
631 check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
632 popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
633
634 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
635 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
636 enabled_all $dep_all || disable $cfg
637 enabled_any $dep_any || disable $cfg
638 disabled_all $dep_con || disable $cfg
639 disabled_any $dep_sel && disable $cfg
640
641 enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
642
643 for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
644 # filter out library deps, these do not belong in extralibs
645 is_in $dep $LIBRARY_LIST && continue
646 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
647 done
648
649 disable ${cfg}_checking
650 done
651 }
652
653 print_config(){
654 pfx=$1
655 files=$2
656 shift 2
657 map 'eval echo "$v \${$v:-no}"' "$@" |
658 awk "BEGIN { split(\"$files\", files) }
659 {
660 c = \"$pfx\" toupper(\$1);
661 v = \$2;
662 sub(/yes/, 1, v);
663 sub(/no/, 0, v);
664 for (f in files) {
665 file = files[f];
666 if (file ~ /\\.h\$/) {
667 printf(\"#define %s %d\\n\", c, v) >>file;
668 } else if (file ~ /\\.asm\$/) {
669 printf(\"%%define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.mak\$/) {
671 n = -v ? \"\" : \"!\";
672 printf(\"%s%s=yes\\n\", n, c) >>file;
673 }
674 }
675 }"
676 }
677
678 print_enabled(){
679 suf=$1
680 shift
681 for v; do
682 enabled $v && printf "%s\n" ${v%$suf}
683 done
684 }
685
686 append(){
687 var=$1
688 shift
689 eval "$var=\"\$$var $*\""
690 }
691
692 prepend(){
693 var=$1
694 shift
695 eval "$var=\"$* \$$var\""
696 }
697
698 unique(){
699 var=$1
700 uniq_list=""
701 for tok in $(eval echo \$$var); do
702 uniq_list="$(filter_out $tok $uniq_list) $tok"
703 done
704 eval "$var=\"${uniq_list}\""
705 }
706
707 resolve(){
708 var=$1
709 tmpvar=
710 for entry in $(eval echo \$$var); do
711 tmpvar="$tmpvar $(eval echo \$${entry})"
712 done
713 eval "$var=\"${tmpvar}\""
714 }
715
716 add_cppflags(){
717 append CPPFLAGS "$@"
718 }
719
720 add_cflags(){
721 append CFLAGS $($cflags_filter "$@")
722 }
723
724 add_cflags_headers(){
725 append CFLAGS_HEADERS $($cflags_filter "$@")
726 }
727
728 add_asflags(){
729 append ASFLAGS $($asflags_filter "$@")
730 }
731
732 add_objcflags(){
733 append OBJCFLAGS $($objcflags_filter "$@")
734 }
735
736 add_ldflags(){
737 append LDFLAGS $($ldflags_filter "$@")
738 }
739
740 add_ldexeflags(){
741 append LDEXEFLAGS $($ldflags_filter "$@")
742 }
743
744 add_ldsoflags(){
745 append LDSOFLAGS $($ldflags_filter "$@")
746 }
747
748 add_stripflags(){
749 append STRIPFLAGS "$@"
750 }
751
752 add_extralibs(){
753 prepend extralibs $($ldflags_filter "$@")
754 }
755
756 add_host_cppflags(){
757 append host_cppflags "$@"
758 }
759
760 add_host_cflags(){
761 append host_cflags $($host_cflags_filter "$@")
762 }
763
764 add_host_ldflags(){
765 append host_ldflags $($host_ldflags_filter "$@")
766 }
767
768 add_compat(){
769 append compat_objs $1
770 shift
771 map 'add_cppflags -D$v' "$@"
772 }
773
774 check_cmd(){
775 log "$@"
776 "$@" >> $logfile 2>&1
777 }
778
779 cc_o(){
780 eval printf '%s\\n' $CC_O
781 }
782
783 cc_e(){
784 eval printf '%s\\n' $CC_E
785 }
786
787 check_cc(){
788 log check_cc "$@"
789 cat > $TMPC
790 log_file $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
792 }
793
794 check_objcc(){
795 log check_objcc "$@"
796 cat > $TMPC
797 log_file $TMPC
798 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
799 }
800
801 check_cpp(){
802 log check_cpp "$@"
803 cat > $TMPC
804 log_file $TMPC
805 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
806 }
807
808 as_o(){
809 eval printf '%s\\n' $AS_O
810 }
811
812 check_as(){
813 log check_as "$@"
814 cat > $TMPS
815 log_file $TMPS
816 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
817 }
818
819 check_inline_asm(){
820 log check_inline_asm "$@"
821 name="$1"
822 code="$2"
823 shift 2
824 disable $name
825 check_cc "$@" <<EOF && enable $name
826 void foo(void){ __asm__ volatile($code); }
827 EOF
828 }
829
830 check_insn(){
831 log check_insn "$@"
832 check_inline_asm ${1}_inline "\"$2\""
833 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
834 }
835
836 check_x86asm(){
837 log check_x86asm "$@"
838 echo "$1" > $TMPS
839 log_file $TMPS
840 shift 1
841 check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
842 }
843
844 ld_o(){
845 eval printf '%s\\n' $LD_O
846 }
847
848 check_ld(){
849 log check_ld "$@"
850 flags=$(filter_out '-l*' "$@")
851 libs=$(filter '-l*' "$@")
852 check_cc $($cflags_filter $flags) || return
853 flags=$($ldflags_filter $flags)
854 libs=$($ldflags_filter $libs)
855 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
856 }
857
858 print_include(){
859 hdr=$1
860 test "${hdr%.h}" = "${hdr}" &&
861 echo "#include $hdr" ||
862 echo "#include <$hdr>"
863 }
864
865 check_code(){
866 log check_code "$@"
867 check=$1
868 headers=$2
869 code=$3
870 shift 3
871 {
872 for hdr in $headers; do
873 print_include $hdr
874 done
875 echo "int main(void) { $code; return 0; }"
876 } | check_$check "$@"
877 }
878
879 check_cppflags(){
880 log check_cppflags "$@"
881 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
882 #include <stdlib.h>;
883 EOF
884 }
885
886 test_cflags(){
887 log test_cflags "$@"
888 set -- $($cflags_filter "$@")
889 check_cc "$@" <<EOF
890 int x;
891 EOF
892 }
893
894 check_cflags(){
895 log check_cflags "$@"
896 test_cflags "$@" && add_cflags "$@"
897 }
898
899 test_objcflags(){
900 log test_objcflags "$@"
901 set -- $($objcflags_filter "$@")
902 check_objcc "$@" <<EOF
903 int x;
904 EOF
905 }
906
907 check_objcflags(){
908 log check_objcflags "$@"
909 test_objcflags "$@" && add_objcflags "$@"
910 }
911
912 test_ldflags(){
913 log test_ldflags "$@"
914 check_ld "$@" <<EOF
915 int main(void){ return 0; }
916 EOF
917 }
918
919 check_ldflags(){
920 log check_ldflags "$@"
921 test_ldflags "$@" && add_ldflags "$@"
922 }
923
924 test_stripflags(){
925 log test_stripflags "$@"
926 # call check_cc to get a fresh TMPO
927 check_cc <<EOF
928 int main(void) { return 0; }
929 EOF
930 check_cmd $strip $STRIPFLAGS "$@" $TMPO
931 }
932
933 check_stripflags(){
934 log check_stripflags "$@"
935 test_stripflags "$@" && add_stripflags "$@"
936 }
937
938 check_header(){
939 log check_header "$@"
940 header=$1
941 shift
942 disable_sanitized $header
943 check_cpp "$@" <<EOF && enable_sanitized $header
944 #include <$header>
945 int x;
946 EOF
947 }
948
949 check_func(){
950 log check_func "$@"
951 func=$1
952 shift
953 disable $func
954 check_ld "$@" <<EOF && enable $func
955 extern int $func();
956 int main(void){ $func(); }
957 EOF
958 }
959
960 check_mathfunc(){
961 log check_mathfunc "$@"
962 func=$1
963 narg=$2
964 shift 2
965 test $narg = 2 && args="f, g" || args="f"
966 disable $func
967 check_ld "$@" <<EOF && enable $func
968 #include <math.h>
969 float foo(float f, float g) { return $func($args); }
970 int main(void){ return 0; }
971 EOF
972 }
973
974 check_func_headers(){
975 log check_func_headers "$@"
976 headers=$1
977 funcs=$2
978 shift 2
979 {
980 for hdr in $headers; do
981 print_include $hdr
982 done
983 for func in $funcs; do
984 echo "long check_$func(void) { return (long) $func; }"
985 done
986 echo "int main(void) { return 0; }"
987 } | check_ld "$@" && enable $funcs && enable_sanitized $headers
988 }
989
990 check_cpp_condition(){
991 log check_cpp_condition "$@"
992 header=$1
993 condition=$2
994 shift 2
995 check_cpp "$@" <<EOF
996 #include <$header>
997 #if !($condition)
998 #error "unsatisfied condition: $condition"
999 #endif
1000 EOF
1001 }
1002
1003 test_cflags_cpp(){
1004 log test_cflags_cpp "$@"
1005 flags=$1
1006 condition=$2
1007 shift 2
1008 set -- $($cflags_filter "$flags")
1009 check_cpp "$@" <<EOF
1010 #if !($condition)
1011 #error "unsatisfied condition: $condition"
1012 #endif
1013 EOF
1014 }
1015
1016 check_lib(){
1017 log check_lib "$@"
1018 name="$1"
1019 headers="$2"
1020 funcs="$3"
1021 shift 3
1022 disable $name
1023 check_func_headers "$headers" "$funcs" "$@" &&
1024 enable $name && eval ${name}_extralibs="\$@"
1025 }
1026
1027 check_pkg_config(){
1028 log check_pkg_config "$@"
1029 name="$1"
1030 pkg_version="$2"
1031 pkg="${2%% *}"
1032 headers="$3"
1033 funcs="$4"
1034 shift 4
1035 disable $name
1036 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1037 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1038 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1039 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1040 enable $name &&
1041 add_cflags "$pkg_cflags" &&
1042 eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1043 }
1044
1045 check_exec(){
1046 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1047 }
1048
1049 check_exec_crash(){
1050 log check_exec_crash "$@"
1051 code=$(cat)
1052
1053 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1054 # are safe but may not be available everywhere. Thus we use
1055 # raise(SIGTERM) instead. The check is run in a subshell so we
1056 # can redirect the "Terminated" message from the shell. SIGBUS
1057 # is not defined by standard C so it is used conditionally.
1058
1059 (check_exec "$@") >> $logfile 2>&1 <<EOF
1060 #include <signal.h>
1061 static void sighandler(int sig){
1062 raise(SIGTERM);
1063 }
1064 int foo(void){
1065 $code
1066 }
1067 int (*func_ptr)(void) = foo;
1068 int main(void){
1069 signal(SIGILL, sighandler);
1070 signal(SIGFPE, sighandler);
1071 signal(SIGSEGV, sighandler);
1072 #ifdef SIGBUS
1073 signal(SIGBUS, sighandler);
1074 #endif
1075 return func_ptr();
1076 }
1077 EOF
1078 }
1079
1080 check_type(){
1081 log check_type "$@"
1082 headers=$1
1083 type=$2
1084 shift 2
1085 disable_sanitized "$type"
1086 check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1087 }
1088
1089 check_struct(){
1090 log check_struct "$@"
1091 headers=$1
1092 struct=$2
1093 member=$3
1094 shift 3
1095 disable_sanitized "${struct}_${member}"
1096 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1097 enable_sanitized "${struct}_${member}"
1098 }
1099
1100 check_builtin(){
1101 log check_builtin "$@"
1102 name=$1
1103 headers=$2
1104 builtin=$3
1105 shift 3
1106 disable "$name"
1107 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1108 }
1109
1110 check_compile_assert(){
1111 log check_compile_assert "$@"
1112 name=$1
1113 headers=$2
1114 condition=$3
1115 shift 3
1116 disable "$name"
1117 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1118 }
1119
1120 require(){
1121 log require "$@"
1122 name_version="$1"
1123 name="${1%% *}"
1124 headers="$2"
1125 func="$3"
1126 shift 3
1127 check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1128 }
1129
1130 require_header(){
1131 log require "$@"
1132 header="$1"
1133 shift
1134 check_header "$header" "$@" || die "ERROR: $header not found"
1135 }
1136
1137 require_cpp_condition(){
1138 log require "$@"
1139 header="$1"
1140 condition="$2"
1141 shift 2
1142 check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1143 }
1144
1145 require_pkg_config(){
1146 log require_pkg_config "$@"
1147 pkg_version="$2"
1148 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1149 }
1150
1151 hostcc_e(){
1152 eval printf '%s\\n' $HOSTCC_E
1153 }
1154
1155 hostcc_o(){
1156 eval printf '%s\\n' $HOSTCC_O
1157 }
1158
1159 check_host_cc(){
1160 log check_host_cc "$@"
1161 cat > $TMPC
1162 log_file $TMPC
1163 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1164 }
1165
1166 check_host_cpp(){
1167 log check_host_cpp "$@"
1168 cat > $TMPC
1169 log_file $TMPC
1170 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1171 }
1172
1173 check_host_cppflags(){
1174 log check_host_cppflags "$@"
1175 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1176 #include <stdlib.h>;
1177 EOF
1178 }
1179
1180 check_host_cflags(){
1181 log check_host_cflags "$@"
1182 set -- $($host_cflags_filter "$@")
1183 check_host_cc "$@" <<EOF && append host_cflags "$@"
1184 int x;
1185 EOF
1186 }
1187
1188 check_host_cpp_condition(){
1189 log check_host_cpp_condition "$@"
1190 header=$1
1191 condition=$2
1192 shift 2
1193 check_host_cpp "$@" <<EOF
1194 #include <$header>
1195 #if !($condition)
1196 #error "unsatisfied condition: $condition"
1197 #endif
1198 EOF
1199 }
1200
1201 apply(){
1202 file=$1
1203 shift
1204 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1205 }
1206
1207 cp_if_changed(){
1208 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1209 mkdir -p "$(dirname $2)"
1210 cp -f "$1" "$2"
1211 }
1212
1213 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1214 # system-dependent things.
1215
1216 AVCODEC_COMPONENTS="
1217 bsfs
1218 decoders
1219 encoders
1220 hwaccels
1221 parsers
1222 "
1223
1224 AVDEVICE_COMPONENTS="
1225 indevs
1226 outdevs
1227 "
1228 AVFILTER_COMPONENTS="
1229 filters
1230 "
1231 AVFORMAT_COMPONENTS="
1232 demuxers
1233 muxers
1234 protocols
1235 "
1236
1237 AVRESAMPLE_COMPONENTS=""
1238 AVUTIL_COMPONENTS=""
1239
1240 COMPONENT_LIST="
1241 $AVCODEC_COMPONENTS
1242 $AVDEVICE_COMPONENTS
1243 $AVFILTER_COMPONENTS
1244 $AVFORMAT_COMPONENTS
1245 $AVRESAMPLE_COMPONENTS
1246 $AVUTIL_COMPONENTS
1247 "
1248
1249 EXAMPLE_LIST="
1250 decode_audio_example
1251 decode_video_example
1252 encode_audio_example
1253 encode_video_example
1254 filter_audio_example
1255 metadata_example
1256 output_example
1257 qsvdec_example
1258 transcode_aac_example
1259 "
1260
1261 # catchall list of things that require external libs to link
1262 EXTRALIBS_LIST="
1263 cpu_init
1264 cws2fws
1265 "
1266
1267 HWACCEL_LIBRARY_NONFREE_LIST="
1268 cuda
1269 libnpp
1270 "
1271 HWACCEL_LIBRARY_LIST="
1272 $HWACCEL_LIBRARY_NONFREE_LIST
1273 d3d11va
1274 dxva2
1275 libmfx
1276 mmal
1277 nvenc
1278 omx
1279 vaapi
1280 vda
1281 vdpau
1282 "
1283
1284 EXTERNAL_LIBRARY_GPL_LIST="
1285 libcdio
1286 libx264
1287 libx265
1288 libxavs
1289 libxvid
1290 "
1291
1292 EXTERNAL_LIBRARY_NONFREE_LIST="
1293 libfaac
1294 libfdk_aac
1295 openssl
1296 "
1297
1298 EXTERNAL_LIBRARY_VERSION3_LIST="
1299 libopencore_amrnb
1300 libopencore_amrwb
1301 libvo_aacenc
1302 libvo_amrwbenc
1303 "
1304
1305 EXTERNAL_LIBRARY_LIST="
1306 $EXTERNAL_LIBRARY_GPL_LIST
1307 $EXTERNAL_LIBRARY_NONFREE_LIST
1308 $EXTERNAL_LIBRARY_VERSION3_LIST
1309 avisynth
1310 avxsynth
1311 frei0r
1312 gnutls
1313 libbs2b
1314 libdc1394
1315 libdcadec
1316 libfontconfig
1317 libfreetype
1318 libgsm
1319 libhdcd
1320 libilbc
1321 libjack
1322 libkvazaar
1323 libmp3lame
1324 libopencv
1325 libopenh264
1326 libopenjpeg
1327 libopus
1328 libpulse
1329 librtmp
1330 libschroedinger
1331 libsnappy
1332 libspeex
1333 libtheora
1334 libtwolame
1335 libvorbis
1336 libvpx
1337 libwavpack
1338 libwebp
1339 libxcb
1340 libxcb_shm
1341 libxcb_xfixes
1342 "
1343
1344 SYSTEM_LIBRARY_LIST="
1345 bzlib
1346 zlib
1347 "
1348
1349 FEATURE_LIST="
1350 gray
1351 hardcoded_tables
1352 omx_rpi
1353 runtime_cpudetect
1354 safe_bitstream_reader
1355 shared
1356 small
1357 sram
1358 static
1359 swscale_alpha
1360 "
1361
1362 LIBRARY_LIST="
1363 avcodec
1364 avdevice
1365 avfilter
1366 avformat
1367 avresample
1368 avutil
1369 swscale
1370 "
1371
1372 LICENSE_LIST="
1373 gpl
1374 nonfree
1375 version3
1376 "
1377
1378 PROGRAM_LIST="
1379 avconv
1380 avplay
1381 avprobe
1382 "
1383
1384 SUBSYSTEM_LIST="
1385 dct
1386 doc
1387 error_resilience
1388 faan
1389 fft
1390 lsp
1391 lzo
1392 mdct
1393 network
1394 rdft
1395 "
1396
1397 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1398 CONFIG_LIST="
1399 $EXAMPLE_LIST
1400 $EXTERNAL_LIBRARY_LIST
1401 $HWACCEL_LIBRARY_LIST
1402 $FEATURE_LIST
1403 $LICENSE_LIST
1404 $LIBRARY_LIST
1405 $PROGRAM_LIST
1406 $SUBSYSTEM_LIST
1407 $SYSTEM_LIBRARY_LIST
1408 neon_clobber_test
1409 pic
1410 pod2man
1411 texi2html
1412 thumb
1413 valgrind_backtrace
1414 xmm_clobber_test
1415 $COMPONENT_LIST
1416 "
1417
1418 THREADS_LIST="
1419 pthreads
1420 w32threads
1421 "
1422
1423 ATOMICS_LIST="
1424 atomics_gcc
1425 atomics_suncc
1426 atomics_win32
1427 "
1428
1429 ARCH_LIST="
1430 aarch64
1431 alpha
1432 arm
1433 avr32
1434 avr32_ap
1435 avr32_uc
1436 bfin
1437 ia64
1438 m68k
1439 mips
1440 mips64
1441 parisc
1442 ppc
1443 ppc64
1444 s390
1445 sh4
1446 sparc
1447 sparc64
1448 tilegx
1449 tilepro
1450 tomi
1451 x86
1452 x86_32
1453 x86_64
1454 "
1455
1456 ARCH_EXT_LIST_ARM="
1457 armv5te
1458 armv6
1459 armv6t2
1460 armv8
1461 neon
1462 vfp
1463 vfpv3
1464 "
1465
1466 ARCH_EXT_LIST_X86_SIMD="
1467 amd3dnow
1468 amd3dnowext
1469 avx
1470 avx2
1471 fma3
1472 fma4
1473 mmx
1474 mmxext
1475 sse
1476 sse2
1477 sse3
1478 sse4
1479 sse42
1480 ssse3
1481 xop
1482 "
1483
1484 ARCH_EXT_LIST_PPC="
1485 altivec
1486 dcbzl
1487 ldbrx
1488 power8
1489 ppc4xx
1490 vsx
1491 "
1492
1493 ARCH_EXT_LIST_X86="
1494 $ARCH_EXT_LIST_X86_SIMD
1495 cpunop
1496 i686
1497 "
1498
1499 ARCH_EXT_LIST_MIPS="
1500 loongson
1501 mips32r1
1502 mips64r1
1503 mips32r2
1504 mips64r2
1505 mips32r6
1506 mips64r6
1507 "
1508
1509 ARCH_EXT_LIST="
1510 $ARCH_EXT_LIST_ARM
1511 $ARCH_EXT_LIST_MIPS
1512 $ARCH_EXT_LIST_PPC
1513 $ARCH_EXT_LIST_X86
1514 vis
1515 "
1516
1517 ARCH_FEATURES="
1518 aligned_stack
1519 fast_64bit
1520 fast_clz
1521 fast_cmov
1522 local_aligned_8
1523 local_aligned_16
1524 local_aligned_32
1525 simd_align_16
1526 simd_align_32
1527 "
1528
1529 BUILTIN_LIST="
1530 atomic_cas_ptr
1531 machine_rw_barrier
1532 MemoryBarrier
1533 mm_empty
1534 rdtsc
1535 sem_timedwait
1536 sync_val_compare_and_swap
1537 "
1538 HAVE_LIST_CMDLINE="
1539 inline_asm
1540 symver
1541 x86asm
1542 "
1543
1544 HAVE_LIST_PUB="
1545 bigendian
1546 fast_unaligned
1547 "
1548
1549 HEADERS_LIST="
1550 AVFoundation_AVFoundation_h
1551 alsa_asoundlib_h
1552 arpa_inet_h
1553 cdio_paranoia_h
1554 cdio_paranoia_paranoia_h
1555 d3d11_h
1556 dispatch_dispatch_h
1557 dev_bktr_ioctl_bt848_h
1558 dev_bktr_ioctl_meteor_h
1559 dev_ic_bt8xx_h
1560 dev_video_bktr_ioctl_bt848_h
1561 dev_video_meteor_ioctl_meteor_h
1562 direct_h
1563 dlfcn_h
1564 dxva_h
1565 gsm_h
1566 io_h
1567 mach_mach_time_h
1568 machine_ioctl_bt848_h
1569 machine_ioctl_meteor_h
1570 malloc_h
1571 poll_h
1572 sndio_h
1573 soundcard_h
1574 stdatomic_h
1575 sys_mman_h
1576 sys_param_h
1577 sys_resource_h
1578 sys_select_h
1579 sys_soundcard_h
1580 sys_time_h
1581 sys_un_h
1582 sys_videoio_h
1583 unistd_h
1584 valgrind_valgrind_h
1585 windows_h
1586 winsock2_h
1587 "
1588
1589 INTRINSICS_LIST="
1590 intrinsics_neon
1591 "
1592
1593 MATH_FUNCS="
1594 atanf
1595 atan2f
1596 cbrtf
1597 cosf
1598 exp2
1599 exp2f
1600 expf
1601 isinf
1602 isnan
1603 ldexpf
1604 llrint
1605 llrintf
1606 log2
1607 log2f
1608 log10f
1609 lrint
1610 lrintf
1611 powf
1612 rint
1613 round
1614 roundf
1615 sinf
1616 trunc
1617 truncf
1618 "
1619
1620 SYSTEM_FUNCS="
1621 aligned_malloc
1622 clock_gettime
1623 closesocket
1624 CommandLineToArgvW
1625 CoTaskMemFree
1626 CryptGenRandom
1627 fcntl
1628 flt_lim
1629 fork
1630 getaddrinfo
1631 gethrtime
1632 getopt
1633 GetProcessAffinityMask
1634 GetProcessMemoryInfo
1635 GetProcessTimes
1636 getrusage
1637 GetSystemTimeAsFileTime
1638 gettimeofday
1639 gmtime_r
1640 inet_aton
1641 isatty
1642 LoadLibrary
1643 localtime_r
1644 mach_absolute_time
1645 MapViewOfFile
1646 memalign
1647 mkstemp
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 socklen_t
1689 struct_addrinfo
1690 struct_group_source_req
1691 struct_ip_mreq_source
1692 struct_ipv6_mreq
1693 struct_pollfd
1694 struct_rusage_ru_maxrss
1695 struct_sockaddr_in6
1696 struct_sockaddr_sa_len
1697 struct_sockaddr_storage
1698 struct_v4l2_frmivalenum_discrete
1699 "
1700
1701 HAVE_LIST="
1702 $ARCH_EXT_LIST
1703 $(add_suffix _external $ARCH_EXT_LIST)
1704 $(add_suffix _inline $ARCH_EXT_LIST)
1705 $ARCH_FEATURES
1706 $BUILTIN_LIST
1707 $HAVE_LIST_CMDLINE
1708 $HAVE_LIST_PUB
1709 $HEADERS_LIST
1710 $INTRINSICS_LIST
1711 $MATH_FUNCS
1712 $SYSTEM_FUNCS
1713 $THREADS_LIST
1714 $TOOLCHAIN_FEATURES
1715 $TYPES_LIST
1716 dos_paths
1717 libc_msvcrt
1718 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1719 sdl
1720 section_data_rel_ro
1721 threads
1722 vaapi_drm
1723 vaapi_x11
1724 vdpau_x11
1725 "
1726
1727 # options emitted with CONFIG_ prefix but not available on the command line
1728 CONFIG_EXTRA="
1729 aandcttables
1730 ac3dsp
1731 adts_header
1732 audio_frame_queue
1733 audiodsp
1734 blockdsp
1735 bswapdsp
1736 cabac
1737 dirac_parse
1738 dvprofile
1739 faandct
1740 faanidct
1741 fdctdsp
1742 flacdsp
1743 fmtconvert
1744 g722dsp
1745 gmp
1746 golomb
1747 gplv3
1748 h263dsp
1749 h264chroma
1750 h264dsp
1751 h264parse
1752 h264pred
1753 h264qpel
1754 hevc_ps
1755 hpeldsp
1756 huffman
1757 huffyuvdsp
1758 huffyuvencdsp
1759 idctdsp
1760 iirfilter
1761 imdct15
1762 intrax8
1763 iso_media
1764 ividsp
1765 jpegtables
1766 lgplv3
1767 libx262
1768 libxcb_shape
1769 lpc
1770 lzf
1771 me_cmp
1772 mpeg_er
1773 mpegaudio
1774 mpegaudiodsp
1775 mpegaudioheader
1776 mpegvideo
1777 mpegvideoenc
1778 mss34dsp
1779 pixblockdsp
1780 qpeldsp
1781 qsv
1782 qsvdec
1783 qsvenc
1784 rangecoder
1785 riffdec
1786 riffenc
1787 rtpdec
1788 rtpenc_chain
1789 rv34dsp
1790 sinewin
1791 snappy
1792 srtp
1793 startcode
1794 texturedsp
1795 texturedspenc
1796 tpeldsp
1797 vaapi_encode
1798 vc1dsp
1799 videodsp
1800 vp3dsp
1801 vp56dsp
1802 vp8dsp
1803 wma_freqs
1804 wmv2dsp
1805 "
1806
1807 CMDLINE_SELECT="
1808 $ARCH_EXT_LIST
1809 $CONFIG_LIST
1810 $HAVE_LIST_CMDLINE
1811 $THREADS_LIST
1812 asm
1813 cross_compile
1814 debug
1815 extra_warnings
1816 logging
1817 lto
1818 optimizations
1819 rpath
1820 "
1821
1822 PATHS_LIST="
1823 bindir
1824 datadir
1825 docdir
1826 incdir
1827 libdir
1828 mandir
1829 prefix
1830 shlibdir
1831 "
1832
1833 CMDLINE_SET="
1834 $PATHS_LIST
1835 ar
1836 arch
1837 as
1838 cc
1839 objcc
1840 cpu
1841 cross_prefix
1842 custom_allocator
1843 dep_cc
1844 env
1845 extra_version
1846 host_cc
1847 host_cflags
1848 host_extralibs
1849 host_ld
1850 host_ldflags
1851 host_os
1852 ignore_tests
1853 ld
1854 logfile
1855 malloc_prefix
1856 nm
1857 optflags
1858 pkg_config
1859 pkg_config_flags
1860 random_seed
1861 samples
1862 sysinclude
1863 sysroot
1864 target_exec
1865 target_os
1866 target_path
1867 target_samples
1868 toolchain
1869 x86asmexe
1870 "
1871
1872 CMDLINE_APPEND="
1873 extra_cflags
1874 extra_objcflags
1875 host_cppflags
1876 "
1877
1878 # code dependency declarations
1879
1880 # architecture extensions
1881
1882 armv5te_deps="arm"
1883 armv6_deps="arm"
1884 armv6t2_deps="arm"
1885 armv8_deps="aarch64"
1886 neon_deps_any="aarch64 arm"
1887 intrinsics_neon_deps="neon"
1888 vfp_deps_any="aarch64 arm"
1889 vfpv3_deps="vfp"
1890
1891 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1892
1893 altivec_deps="ppc"
1894 dcbzl_deps="ppc"
1895 ldbrx_deps="ppc"
1896 ppc4xx_deps="ppc"
1897 vsx_deps="altivec"
1898 power8_deps="vsx"
1899
1900 loongson_deps="mips"
1901 mips32r1_deps="mips32"
1902 mips32r2_deps="mips32"
1903 mips32r6_deps="mips32"
1904 mips64r1_deps="mips64"
1905 mips64r2_deps="mips64"
1906 mips64r6_deps="mips64"
1907
1908 vis_deps="sparc"
1909
1910 cpunop_deps="i686"
1911 x86_64_select="i686"
1912 x86_64_suggest="fast_cmov"
1913
1914 amd3dnow_deps="mmx"
1915 amd3dnowext_deps="amd3dnow"
1916 i686_deps="x86"
1917 mmx_deps="x86"
1918 mmxext_deps="mmx"
1919 sse_deps="mmxext"
1920 sse2_deps="sse"
1921 sse3_deps="sse2"
1922 ssse3_deps="sse3"
1923 sse4_deps="ssse3"
1924 sse42_deps="sse4"
1925 avx_deps="sse42"
1926 xop_deps="avx"
1927 fma3_deps="avx"
1928 fma4_deps="avx"
1929 avx2_deps="avx"
1930
1931 mmx_external_deps="x86asm"
1932 mmx_inline_deps="inline_asm x86"
1933 mmx_suggest="mmx_external mmx_inline"
1934
1935 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1936 eval dep=\$${ext}_deps
1937 eval ${ext}_external_deps='"${dep}_external"'
1938 eval ${ext}_inline_deps='"${dep}_inline"'
1939 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1940 done
1941
1942 aligned_stack_if_any="aarch64 ppc x86"
1943 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1944 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1945 fast_unaligned_if_any="aarch64 ppc x86"
1946 simd_align_16_if_any="altivec neon sse"
1947 simd_align_32_if_any="avx"
1948
1949 # system capabilities
1950 symver_if_any="symver_asm_label symver_gnu_asm"
1951 valgrind_backtrace_conflict="optimizations"
1952 valgrind_backtrace_deps="valgrind_valgrind_h"
1953
1954 # threading support
1955 atomics_gcc_if="sync_val_compare_and_swap"
1956 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1957 atomics_win32_if="MemoryBarrier"
1958 atomics_native_if_any="$ATOMICS_LIST"
1959 w32threads_deps="atomics_native"
1960 threads_if_any="$THREADS_LIST"
1961
1962 # subsystems
1963 dct_select="rdft"
1964 dirac_parse_select="golomb"
1965 error_resilience_select="me_cmp"
1966 faandct_deps="faan"
1967 faandct_select="fdctdsp"
1968 faanidct_deps="faan"
1969 faanidct_select="idctdsp"
1970 h264dsp_select="startcode"
1971 hevc_ps_select="golomb"
1972 intrax8_select="blockdsp idctdsp"
1973 mdct_select="fft"
1974 rdft_select="fft"
1975 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1976 mpeg_er_select="error_resilience"
1977 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1978 mpegaudiodsp_select="dct"
1979 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1980 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1981 vc1dsp_select="h264chroma qpeldsp startcode"
1982
1983 # decoders / encoders
1984 aac_decoder_select="adts_header imdct15 mdct sinewin"
1985 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1986 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1987 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1988 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1989 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1990 adpcm_g722_decoder_select="g722dsp"
1991 adpcm_g722_encoder_select="g722dsp"
1992 aic_decoder_select="golomb idctdsp"
1993 alac_encoder_select="lpc"
1994 als_decoder_select="bswapdsp"
1995 amrnb_decoder_select="lsp"
1996 amrwb_decoder_select="lsp"
1997 amv_decoder_select="sp5x_decoder"
1998 ape_decoder_select="bswapdsp"
1999 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2000 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2001 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2002 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2003 atrac1_decoder_select="mdct sinewin"
2004 atrac3_decoder_select="mdct"
2005 atrac3p_decoder_select="mdct sinewin"
2006 bink_decoder_select="blockdsp hpeldsp"
2007 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2008 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2009 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2010 clearvideo_decoder_select="idctdsp"
2011 cllc_decoder_select="bswapdsp"
2012 comfortnoise_encoder_select="lpc"
2013 cook_decoder_select="audiodsp mdct sinewin"
2014 cscd_decoder_select="lzo"
2015 cscd_decoder_suggest="zlib"
2016 dca_decoder_select="fmtconvert mdct"
2017 dds_decoder_select="texturedsp"
2018 dnxhd_decoder_select="blockdsp idctdsp"
2019 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2020 dvvideo_decoder_select="dvprofile idctdsp"
2021 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2022 dxa_decoder_deps="zlib"
2023 dxv_decoder_select="lzf texturedsp"
2024 eac3_decoder_select="ac3_decoder"
2025 eac3_encoder_select="ac3_encoder"
2026 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2027 eatgq_decoder_select="aandcttables idctdsp"
2028 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2029 exr_decoder_deps="zlib"
2030 ffv1_decoder_select="rangecoder"
2031 ffv1_encoder_select="rangecoder"
2032 ffvhuff_decoder_select="huffyuv_decoder"
2033 ffvhuff_encoder_select="huffyuv_encoder"
2034 fic_decoder_select="golomb"
2035 flac_decoder_select="flacdsp"
2036 flac_encoder_select="bswapdsp flacdsp lpc"
2037 flashsv_decoder_deps="zlib"
2038 flashsv_encoder_deps="zlib"
2039 flashsv2_decoder_deps="zlib"
2040 flv_decoder_select="h263_decoder"
2041 flv_encoder_select="h263_encoder"
2042 fourxm_decoder_select="blockdsp bswapdsp"
2043 fraps_decoder_select="bswapdsp huffman"
2044 g2m_decoder_deps="zlib"
2045 g2m_decoder_select="blockdsp idctdsp jpegtables"
2046 h261_decoder_select="mpeg_er mpegvideo"
2047 h261_encoder_select="aandcttables mpegvideoenc"
2048 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2049 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2050 h263i_decoder_select="h263_decoder"
2051 h263p_encoder_select="h263_encoder"
2052 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2053 h264_decoder_suggest="error_resilience"
2054 hap_decoder_select="snappy texturedsp"
2055 hap_encoder_deps="libsnappy"
2056 hap_encoder_select="texturedspenc"
2057 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2058 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2059 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2060 iac_decoder_select="imc_decoder"
2061 imc_decoder_select="bswapdsp fft mdct sinewin"
2062 indeo3_decoder_select="hpeldsp"
2063 indeo4_decoder_select="ividsp"
2064 indeo5_decoder_select="ividsp"
2065 interplay_video_decoder_select="hpeldsp"
2066 jpegls_decoder_select="mjpeg_decoder"
2067 jv_decoder_select="blockdsp"
2068 lagarith_decoder_select="huffyuvdsp"
2069 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2070 magicyuv_decoder_select="huffyuvdsp"
2071 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2072 metasound_decoder_select="lsp mdct sinewin"
2073 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2074 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2075 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2076 mjpegb_decoder_select="mjpeg_decoder"
2077 mlp_decoder_select="mlp_parser"
2078 motionpixels_decoder_select="bswapdsp"
2079 mp1_decoder_select="mpegaudio"
2080 mp1float_decoder_select="mpegaudio"
2081 mp2_decoder_select="mpegaudio"
2082 mp2float_decoder_select="mpegaudio"
2083 mp3_decoder_select="mpegaudio"
2084 mp3adu_decoder_select="mpegaudio"
2085 mp3adufloat_decoder_select="mpegaudio"
2086 mp3float_decoder_select="mpegaudio"
2087 mp3on4_decoder_select="mpegaudio"
2088 mp3on4float_decoder_select="mpegaudio"
2089 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2090 mpc8_decoder_select="mpegaudiodsp"
2091 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2092 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2093 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2094 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2095 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2096 mpeg4_encoder_select="h263_encoder"
2097 msa1_decoder_select="mss34dsp"
2098 msmpeg4v1_decoder_select="h263_decoder"
2099 msmpeg4v2_decoder_select="h263_decoder"
2100 msmpeg4v2_encoder_select="h263_encoder"
2101 msmpeg4v3_decoder_select="h263_decoder"
2102 msmpeg4v3_encoder_select="h263_encoder"
2103 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2104 mts2_decoder_select="mss34dsp"
2105 mxpeg_decoder_select="mjpeg_decoder"
2106 nellymoser_decoder_select="mdct sinewin"
2107 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2108 nuv_decoder_select="idctdsp lzo"
2109 on2avc_decoder_select="mdct"
2110 opus_decoder_deps="avresample"
2111 opus_decoder_select="imdct15"
2112 png_decoder_deps="zlib"
2113 png_encoder_deps="zlib"
2114 png_encoder_select="huffyuvencdsp"
2115 prores_decoder_select="idctdsp"
2116 prores_encoder_select="fdctdsp"
2117 qcelp_decoder_select="lsp"
2118 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2119 ra_144_encoder_select="audio_frame_queue lpc"
2120 ralf_decoder_select="golomb"
2121 rscc_decoder_deps="zlib"
2122 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2123 rv10_encoder_select="h263_encoder"
2124 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2125 rv20_encoder_select="h263_encoder"
2126 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2127 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2128 screenpresso_decoder_deps="zlib"
2129 sipr_decoder_select="lsp"
2130 sp5x_decoder_select="mjpeg_decoder"
2131 svq1_decoder_select="hpeldsp"
2132 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2133 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2134 svq3_decoder_suggest="zlib"
2135 tak_decoder_select="audiodsp"
2136 tdsc_decoder_deps="zlib"
2137 tdsc_decoder_select="mjpeg_decoder"
2138 theora_decoder_select="vp3_decoder"
2139 thp_decoder_select="mjpeg_decoder"
2140 tiff_decoder_suggest="zlib"
2141 tiff_encoder_suggest="zlib"
2142 truehd_decoder_select="mlp_decoder"
2143 truemotion2_decoder_select="bswapdsp"
2144 truespeech_decoder_select="bswapdsp"
2145 tscc_decoder_deps="zlib"
2146 txd_decoder_select="texturedsp"
2147 twinvq_decoder_select="mdct lsp sinewin"
2148 utvideo_decoder_select="bswapdsp huffyuvdsp"
2149 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2150 vble_decoder_select="huffyuvdsp"
2151 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2152 vc1image_decoder_select="vc1_decoder"
2153 vorbis_decoder_select="mdct"
2154 vorbis_encoder_select="mdct"
2155 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2156 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2157 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2158 vp6a_decoder_select="vp6_decoder"
2159 vp6f_decoder_select="vp6_decoder"
2160 vp7_decoder_select="h264pred videodsp vp8dsp"
2161 vp8_decoder_select="h264pred videodsp vp8dsp"
2162 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2163 webp_decoder_select="vp8_decoder"
2164 wmapro_decoder_select="mdct sinewin wma_freqs"
2165 wmav1_decoder_select="mdct sinewin wma_freqs"
2166 wmav1_encoder_select="mdct sinewin wma_freqs"
2167 wmav2_decoder_select="mdct sinewin wma_freqs"
2168 wmav2_encoder_select="mdct sinewin wma_freqs"
2169 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2170 wmv1_decoder_select="h263_decoder"
2171 wmv1_encoder_select="h263_encoder"
2172 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2173 wmv2_encoder_select="h263_encoder wmv2dsp"
2174 wmv3_decoder_select="vc1_decoder"
2175 wmv3image_decoder_select="wmv3_decoder"
2176 zerocodec_decoder_deps="zlib"
2177 zlib_decoder_deps="zlib"
2178 zlib_encoder_deps="zlib"
2179 zmbv_decoder_deps="zlib"
2180 zmbv_encoder_deps="zlib"
2181
2182 # hardware accelerators
2183 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2184 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2185 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2186 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2187
2188 h263_vaapi_hwaccel_deps="vaapi"
2189 h263_vaapi_hwaccel_select="h263_decoder"
2190 h264_d3d11va_hwaccel_deps="d3d11va"
2191 h264_d3d11va_hwaccel_select="h264_decoder"
2192 h264_d3d11va2_hwaccel_deps="d3d11va"
2193 h264_d3d11va2_hwaccel_select="h264_decoder"
2194 h264_dxva2_hwaccel_deps="dxva2"
2195 h264_dxva2_hwaccel_select="h264_decoder"
2196 h264_mmal_hwaccel_deps="mmal"
2197 h264_qsv_hwaccel_deps="libmfx"
2198 h264_vaapi_hwaccel_deps="vaapi"
2199 h264_vaapi_hwaccel_select="h264_decoder"
2200 h264_vda_hwaccel_deps="vda"
2201 h264_vda_hwaccel_select="h264_decoder"
2202 h264_vda_old_hwaccel_deps="vda"
2203 h264_vda_old_hwaccel_select="h264_decoder"
2204 h264_vdpau_hwaccel_deps="vdpau"
2205 h264_vdpau_hwaccel_select="h264_decoder"
2206 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2207 hevc_d3d11va_hwaccel_select="hevc_decoder"
2208 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2209 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2210 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2211 hevc_dxva2_hwaccel_select="hevc_decoder"
2212 hevc_qsv_hwaccel_deps="libmfx"
2213 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2214 hevc_vaapi_hwaccel_select="hevc_decoder"
2215 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2216 hevc_vdpau_hwaccel_select="hevc_decoder"
2217 mpeg1_vdpau_hwaccel_deps="vdpau"
2218 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2219 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2220 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2221 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2222 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2223 mpeg2_dxva2_hwaccel_deps="dxva2"
2224 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2225 mpeg2_mmal_hwaccel_deps="mmal"
2226 mpeg2_qsv_hwaccel_deps="libmfx"
2227 mpeg2_vaapi_hwaccel_deps="vaapi"
2228 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2229 mpeg2_vdpau_hwaccel_deps="vdpau"
2230 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2231 mpeg4_vaapi_hwaccel_deps="vaapi"
2232 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2233 mpeg4_vdpau_hwaccel_deps="vdpau"
2234 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2235 vc1_d3d11va_hwaccel_deps="d3d11va"
2236 vc1_d3d11va_hwaccel_select="vc1_decoder"
2237 vc1_d3d11va2_hwaccel_deps="d3d11va"
2238 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2239 vc1_dxva2_hwaccel_deps="dxva2"
2240 vc1_dxva2_hwaccel_select="vc1_decoder"
2241 vc1_mmal_hwaccel_deps="mmal"
2242 vc1_qsv_hwaccel_deps="libmfx"
2243 vc1_vaapi_hwaccel_deps="vaapi"
2244 vc1_vaapi_hwaccel_select="vc1_decoder"
2245 vc1_vdpau_hwaccel_deps="vdpau"
2246 vc1_vdpau_hwaccel_select="vc1_decoder"
2247 vp8_qsv_hwaccel_deps="libmfx"
2248 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2249 vp8_vaapi_hwaccel_select="vp8_decoder"
2250 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2251 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2252 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2253 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2254 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2255
2256 # hardware-accelerated codecs
2257 nvenc_deps_any="libdl LoadLibrary"
2258 omx_deps="libdl pthreads"
2259 omx_rpi_select="omx"
2260 qsv_deps="libmfx"
2261 qsvdec_select="qsv"
2262 qsvenc_select="qsv"
2263 vaapi_encode_deps="vaapi"
2264
2265 hwupload_cuda_filter_deps="cuda"
2266 scale_npp_filter_deps="cuda libnpp"
2267
2268 h264_mmal_decoder_deps="mmal"
2269 h264_nvenc_encoder_deps="nvenc"
2270 h264_omx_encoder_deps="omx"
2271 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2272 h264_qsv_encoder_select="qsvenc"
2273 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2274 h264_vaapi_encoder_select="vaapi_encode golomb"
2275 hevc_nvenc_encoder_deps="nvenc"
2276 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2277 hevc_qsv_encoder_select="hevc_ps qsvenc"
2278 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2279 hevc_vaapi_encoder_select="vaapi_encode golomb"
2280 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2281 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2282 mpeg2_mmal_decoder_deps="mmal"
2283 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2284 mpeg2_qsv_encoder_select="qsvenc"
2285 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2286 mpeg2_vaapi_encoder_select="vaapi_encode"
2287 mpeg4_omx_encoder_deps="omx"
2288 vc1_mmal_decoder_deps="mmal"
2289 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2290 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2291 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2292 vp8_vaapi_encoder_select="vaapi_encode"
2293 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2294 vp9_vaapi_encoder_select="vaapi_encode"
2295
2296 nvenc_h264_encoder_select="h264_nvenc_encoder"
2297 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2298
2299 # parsers
2300 aac_parser_select="adts_header"
2301 h264_parser_select="golomb h264dsp h264parse"
2302 hevc_parser_select="hevc_ps"
2303 mpegaudio_parser_select="mpegaudioheader"
2304 mpegvideo_parser_select="mpegvideo"
2305 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2306 vc1_parser_select="vc1dsp"
2307
2308 # bitstream_filters
2309 aac_adtstoasc_bsf_select="adts_header"
2310 mjpeg2jpeg_bsf_select="jpegtables"
2311
2312 # external libraries
2313 avisynth_deps="LoadLibrary"
2314 avxsynth_deps="libdl"
2315 avisynth_demuxer_deps_any="avisynth avxsynth"
2316 avisynth_demuxer_select="riffdec"
2317 libdcadec_decoder_deps="libdcadec"
2318 libfaac_encoder_deps="libfaac"
2319 libfaac_encoder_select="audio_frame_queue"
2320 libfdk_aac_decoder_deps="libfdk_aac"
2321 libfdk_aac_encoder_deps="libfdk_aac"
2322 libfdk_aac_encoder_select="audio_frame_queue"
2323 libgsm_decoder_deps="libgsm"
2324 libgsm_encoder_deps="libgsm"
2325 libgsm_ms_decoder_deps="libgsm"
2326 libgsm_ms_encoder_deps="libgsm"
2327 libilbc_decoder_deps="libilbc"
2328 libilbc_encoder_deps="libilbc"
2329 libkvazaar_encoder_deps="libkvazaar"
2330 libmp3lame_encoder_deps="libmp3lame"
2331 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2332 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2333 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2334 libopencore_amrnb_encoder_select="audio_frame_queue"
2335 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2336 libopenh264_decoder_deps="libopenh264"
2337 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2338 libopenh264_encoder_deps="libopenh264"
2339 libopenjpeg_decoder_deps="libopenjpeg"
2340 libopenjpeg_encoder_deps="libopenjpeg"
2341 libopus_decoder_deps="libopus"
2342 libopus_encoder_deps="libopus"
2343 libopus_encoder_select="audio_frame_queue"
2344 libschroedinger_decoder_deps="libschroedinger"
2345 libschroedinger_encoder_deps="libschroedinger"
2346 libspeex_decoder_deps="libspeex"
2347 libspeex_encoder_deps="libspeex"
2348 libspeex_encoder_select="audio_frame_queue"
2349 libtheora_encoder_deps="libtheora"
2350 libtwolame_encoder_deps="libtwolame"
2351 libvo_aacenc_encoder_deps="libvo_aacenc"
2352 libvo_aacenc_encoder_select="audio_frame_queue"
2353 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2354 libvorbis_encoder_deps="libvorbis"
2355 libvorbis_encoder_select="audio_frame_queue"
2356 libvpx_vp8_decoder_deps="libvpx"
2357 libvpx_vp8_encoder_deps="libvpx"
2358 libvpx_vp9_decoder_deps="libvpx"
2359 libvpx_vp9_encoder_deps="libvpx"
2360 libwavpack_encoder_deps="libwavpack"
2361 libwavpack_encoder_select="audio_frame_queue"
2362 libwebp_encoder_deps="libwebp"
2363 libx262_encoder_deps="libx262"
2364 libx264_encoder_deps="libx264"
2365 libx265_encoder_deps="libx265"
2366 libxavs_encoder_deps="libxavs"
2367 libxvid_encoder_deps="libxvid mkstemp"
2368
2369 # demuxers / muxers
2370 ac3_demuxer_select="ac3_parser"
2371 asf_demuxer_select="riffdec"
2372 asf_muxer_select="riffenc"
2373 asf_stream_muxer_select="asf_muxer"
2374 avi_demuxer_select="iso_media riffdec"
2375 avi_muxer_select="riffenc"
2376 caf_demuxer_select="iso_media riffdec"
2377 dash_muxer_select="mp4_muxer"
2378 dirac_demuxer_select="dirac_parser"
2379 dv_demuxer_select="dvprofile"
2380 dv_muxer_select="dvprofile"
2381 dxa_demuxer_select="riffdec"
2382 eac3_demuxer_select="ac3_parser"
2383 f4v_muxer_select="mov_muxer"
2384 flac_demuxer_select="flac_parser"
2385 hds_muxer_select="flv_muxer"
2386 hls_muxer_select="mpegts_muxer"
2387 ipod_muxer_select="mov_muxer"
2388 ismv_muxer_select="mov_muxer"
2389 matroska_audio_muxer_select="matroska_muxer"
2390 matroska_demuxer_select="iso_media riffdec"
2391 matroska_demuxer_suggest="bzlib lzo zlib"
2392 matroska_muxer_select="iso_media riffenc"
2393 mmf_muxer_select="riffenc"
2394 mov_demuxer_select="iso_media riffdec"
2395 mov_demuxer_suggest="zlib"
2396 mov_muxer_select="iso_media riffenc rtpenc_chain"
2397 mp3_demuxer_select="mpegaudio_parser"
2398 mp3_muxer_select="mpegaudioheader"
2399 mp4_muxer_select="mov_muxer"
2400 mpegts_demuxer_select="iso_media"
2401 mpegts_muxer_select="adts_muxer latm_muxer"
2402 mpegtsraw_demuxer_select="mpegts_demuxer"
2403 mxf_d10_muxer_select="mxf_muxer"
2404 nut_muxer_select="riffenc"
2405 nuv_demuxer_select="riffdec"
2406 oga_muxer_select="ogg_muxer"
2407 ogg_demuxer_select="dirac_parse"
2408 opus_muxer_select="ogg_muxer"
2409 psp_muxer_select="mov_muxer"
2410 rtp_demuxer_select="sdp_demuxer"
2411 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2412 rtsp_demuxer_select="http_protocol rtpdec"
2413 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2414 sap_demuxer_select="sdp_demuxer"
2415 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2416 sdp_demuxer_select="rtpdec"
2417 smoothstreaming_muxer_select="ismv_muxer"
2418 spdif_demuxer_select="adts_header"
2419 spdif_muxer_select="adts_header"
2420 spx_muxer_select="ogg_muxer"
2421 swf_demuxer_suggest="zlib"
2422 tak_demuxer_select="tak_parser"
2423 tg2_muxer_select="mov_muxer"
2424 tgp_muxer_select="mov_muxer"
2425 w64_demuxer_select="wav_demuxer"
2426 wav_demuxer_select="riffdec"
2427 wav_muxer_select="riffenc"
2428 webm_muxer_select="iso_media riffenc"
2429 wtv_demuxer_select="mpegts_demuxer riffdec"
2430 xmv_demuxer_select="riffdec"
2431 xwma_demuxer_select="riffdec"
2432
2433 # indevs / outdevs
2434 alsa_indev_deps="alsa"
2435 alsa_outdev_deps="alsa"
2436 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2437 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2438 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2439 dv1394_indev_deps="dv1394"
2440 dv1394_indev_select="dv_demuxer"
2441 fbdev_indev_deps="linux_fb_h"
2442 jack_indev_deps="libjack"
2443 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2444 libcdio_indev_deps="libcdio"
2445 libdc1394_indev_deps="libdc1394"
2446 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2447 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2448 pulse_indev_deps="libpulse"
2449 sndio_indev_deps="sndio"
2450 sndio_outdev_deps="sndio"
2451 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2452 vfwcap_indev_deps="vfw32 vfwcap_defines"
2453 xcbgrab_indev_deps="libxcb libxcb_shape"
2454 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2455
2456 # protocols
2457 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2458 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2459 ffrtmpcrypt_protocol_select="tcp_protocol"
2460 ffrtmphttp_protocol_conflict="librtmp_protocol"
2461 ffrtmphttp_protocol_select="http_protocol"
2462 gopher_protocol_select="network"
2463 http_protocol_select="tcp_protocol"
2464 http_protocol_suggest="zlib"
2465 httpproxy_protocol_select="tcp_protocol"
2466 httpproxy_protocol_suggest="zlib"
2467 https_protocol_select="tls_protocol"
2468 https_protocol_suggest="zlib"
2469 icecast_protocol_select="http_protocol"
2470 librtmp_protocol_deps="librtmp"
2471 librtmpe_protocol_deps="librtmp"
2472 librtmps_protocol_deps="librtmp"
2473 librtmpt_protocol_deps="librtmp"
2474 librtmpte_protocol_deps="librtmp"
2475 mmsh_protocol_select="http_protocol"
2476 mmst_protocol_select="network"
2477 rtmp_protocol_conflict="librtmp_protocol"
2478 rtmp_protocol_select="tcp_protocol"
2479 rtmp_protocol_suggest="zlib"
2480 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2481 rtmpe_protocol_suggest="zlib"
2482 rtmps_protocol_conflict="librtmp_protocol"
2483 rtmps_protocol_select="tls_protocol"
2484 rtmps_protocol_suggest="zlib"
2485 rtmpt_protocol_select="ffrtmphttp_protocol"
2486 rtmpt_protocol_suggest="zlib"
2487 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2488 rtmpte_protocol_suggest="zlib"
2489 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2490 rtmpts_protocol_suggest="zlib"
2491 rtp_protocol_select="udp_protocol"
2492 sctp_protocol_deps="struct_sctp_event_subscribe"
2493 sctp_protocol_select="network"
2494 srtp_protocol_select="rtp_protocol srtp"
2495 tcp_protocol_select="network"
2496 tls_protocol_deps_any="gnutls openssl"
2497 tls_protocol_select="tcp_protocol"
2498 udp_protocol_select="network"
2499 unix_protocol_deps="sys_un_h"
2500 unix_protocol_select="network"
2501
2502 # filters
2503 asyncts_filter_deps="avresample"
2504 blackframe_filter_deps="gpl"
2505 boxblur_filter_deps="gpl"
2506 bs2b_filter_deps="libbs2b"
2507 cropdetect_filter_deps="gpl"
2508 deinterlace_qsv_filter_deps="libmfx"
2509 deinterlace_vaapi_filter_deps="vaapi"
2510 delogo_filter_deps="gpl"
2511 drawtext_filter_deps="libfreetype"
2512 drawtext_filter_suggest="libfontconfig"
2513 frei0r_filter_deps="frei0r libdl"
2514 frei0r_src_filter_deps="frei0r libdl"
2515 hdcd_filter_deps="libhdcd"
2516 hqdn3d_filter_deps="gpl"
2517 interlace_filter_deps="gpl"
2518 movie_filter_deps="avcodec avformat"
2519 ocv_filter_deps="libopencv"
2520 resample_filter_deps="avresample"
2521 scale_filter_deps="swscale"
2522 scale_qsv_filter_deps="libmfx"
2523 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2524
2525 # examples
2526 decode_audio_example_deps="avcodec avutil"
2527 decode_video_example_deps="avcodec avutil"
2528 encode_audio_example_deps="avcodec avutil"
2529 encode_video_example_deps="avcodec avutil"
2530 filter_audio_example_deps="avfilter avutil"
2531 metadata_example_deps="avformat avutil"
2532 output_example_deps="avcodec avformat avresample avutil swscale"
2533 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2534 transcode_aac_example_deps="avcodec avformat avresample"
2535
2536 # EXTRALIBS_LIST
2537 cpu_init_extralibs="pthreads_extralibs"
2538 cws2fws_extralibs="zlib_extralibs"
2539
2540 # libraries, in linking order
2541 avcodec_deps="avutil"
2542 avcodec_select="null_bsf"
2543 avdevice_deps="avformat avcodec avutil"
2544 avfilter_deps="avutil"
2545 avformat_deps="avcodec avutil"
2546 avformat_suggest="network"
2547 avresample_deps="avutil"
2548 swscale_deps="avutil"
2549
2550 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2551 avdevice_extralibs="libm_extralibs"
2552 avformat_extralibs="libm_extralibs"
2553 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2554 avresample_extralibs="libm_extralibs"
2555 avutil_extralibs="clock_gettime_extralibs cuda_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2556 swscale_extralibs="libm_extralibs"
2557
2558 # programs
2559 avconv_deps="avcodec avfilter avformat avresample swscale"
2560 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2561 fps_filter null_filter resample_filter scale_filter
2562 trim_filter"
2563 avconv_suggest="psapi shell32"
2564 avplay_deps="avcodec avfilter avformat avresample sdl"
2565 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2566 avplay_suggest="shell32"
2567 avprobe_deps="avcodec avformat"
2568 avprobe_suggest="shell32"
2569
2570 # documentation
2571 pod2man_deps="doc"
2572 texi2html_deps="doc"
2573
2574 # default parameters
2575
2576 logfile="avbuild/config.log"
2577
2578 # installation paths
2579 prefix_default="/usr/local"
2580 bindir_default='${prefix}/bin'
2581 datadir_default='${prefix}/share/avconv'
2582 docdir_default='${prefix}/share/doc/libav'
2583 incdir_default='${prefix}/include'
2584 libdir_default='${prefix}/lib'
2585 mandir_default='${prefix}/share/man'
2586 shlibdir_default="$libdir_default"
2587
2588 # toolchain
2589 ar_default="ar"
2590 cc_default="gcc"
2591 host_cc_default="gcc"
2592 x86asmexe_default="nasm"
2593 ln_s="ln -s -f"
2594 nm_default="nm -g"
2595 pkg_config_default=pkg-config
2596 ranlib="ranlib"
2597 strip="strip"
2598 version_script='--version-script'
2599
2600 # machine
2601 arch_default=$(uname -m)
2602 cpu="generic"
2603 intrinsics="none"
2604
2605 # OS
2606 target_os_default=$(tolower $(uname -s))
2607 host_os=$target_os_default
2608
2609 # configurable options
2610 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2611
2612 enable asm
2613 enable debug
2614 enable doc
2615 enable faan faandct faanidct
2616 enable optimizations
2617 enable safe_bitstream_reader
2618 enable static
2619 enable swscale_alpha
2620 enable valgrind_backtrace
2621
2622 # By default, enable only those hwaccels that have no external dependencies.
2623 enable d3d11va dxva2 vda vdpau
2624
2625 # internal components are enabled by default
2626 enable $EXTRALIBS_LIST
2627
2628 # Avoid external, non-system, libraries getting enabled by dependency resolution
2629 disable $EXTERNAL_LIBRARY_LIST
2630
2631 # build settings
2632 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2633 LIBPREF="lib"
2634 LIBSUF=".a"
2635 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2636 SLIBPREF="lib"
2637 SLIBSUF=".so"
2638 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2639 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2640 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2641 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2642 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2643 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2644 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2645
2646 asflags_filter=echo
2647 cflags_filter=echo
2648 ldflags_filter=echo
2649
2650 AS_C='-c'
2651 AS_O='-o $@'
2652 CC_C='-c'
2653 CC_E='-E -o $@'
2654 CC_O='-o $@'
2655 OBJCC_C='-c'
2656 OBJCC_E='-E -o $@'
2657 OBJCC_O='-o $@'
2658 X86ASM_O='-o $@'
2659 LD_O='-o $@'
2660 LD_LIB='-l%'
2661 LD_PATH='-L'
2662 HOSTCC_C='-c'
2663 HOSTCC_E='-E -o $@'
2664 HOSTCC_O='-o $@'
2665 HOSTLD_O='-o $@'
2666
2667 host_extralibs='-lm'
2668 host_cflags_filter=echo
2669 host_ldflags_filter=echo
2670
2671 target_path='$(CURDIR)'
2672
2673 # since the object filename is not given with the -MM flag, the compiler
2674 # is only able to print the basename, and we must add the path ourselves
2675 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2676 DEPFLAGS='-MM'
2677
2678 mkdir -p avbuild
2679
2680 # find source path
2681 if test -f configure; then
2682 source_path=.
2683 else
2684 source_path=$(cd $(dirname "$0"); pwd)
2685 echo "$source_path" | grep -q '[[:blank:]]' &&
2686 die "Out of tree builds are impossible with whitespace in source path."
2687 test -e "$source_path/config.h" &&
2688 die "Out of tree builds are impossible with config.h in source dir."
2689 fi
2690
2691 for v in "$@"; do
2692 r=${v#*=}
2693 l=${v%"$r"}
2694 r=$(sh_quote "$r")
2695 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2696 done
2697
2698 find_things(){
2699 thing=$1
2700 pattern=$2
2701 file=$source_path/$3
2702 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2703 }
2704
2705 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2706 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2707 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2708 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2709 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2710 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2711 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2712 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2713 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2714
2715 find_things_extern(){
2716 thing=$1
2717 pattern=$2
2718 file=$source_path/$3
2719 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2720 }
2721
2722 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2723 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2724
2725 AVCODEC_COMPONENTS_LIST="
2726 $BSF_LIST
2727 $DECODER_LIST
2728 $ENCODER_LIST
2729 $HWACCEL_LIST
2730 $PARSER_LIST
2731 "
2732
2733 AVDEVICE_COMPONENTS_LIST="
2734 $INDEV_LIST
2735 $OUTDEV_LIST
2736 "
2737
2738 AVFILTER_COMPONENTS_LIST="
2739 $FILTER_LIST
2740 "
2741
2742 AVFORMAT_COMPONENTS_LIST="
2743 $DEMUXER_LIST
2744 $MUXER_LIST
2745 $PROTOCOL_LIST
2746 "
2747
2748 ALL_COMPONENTS="
2749 $AVCODEC_COMPONENTS_LIST
2750 $AVDEVICE_COMPONENTS_LIST
2751 $AVFILTER_COMPONENTS_LIST
2752 $AVFORMAT_COMPONENTS_LIST
2753 "
2754
2755 for n in $COMPONENT_LIST; do
2756 v=$(toupper ${n%s})_LIST
2757 eval enable \$$v
2758 eval ${n}_if_any="\$$v"
2759 done
2760
2761 enable $ARCH_EXT_LIST
2762
2763 die_unknown(){
2764 echo "Unknown option \"$1\"."
2765 echo "See $0 --help for available options."
2766 exit 1
2767 }
2768
2769 print_3_columns() {
2770 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2771 }
2772
2773 show_list() {
2774 suffix=_$1
2775 shift
2776 echo $* | sed s/$suffix//g | print_3_columns
2777 exit 0
2778 }
2779
2780 rand_list(){
2781 IFS=', '
2782 set -- $*
2783 unset IFS
2784 for thing; do
2785 comp=${thing%:*}
2786 prob=${thing#$comp}
2787 prob=${prob#:}
2788 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2789 echo "prob ${prob:-0.5}"
2790 printf '%s\n' $comp
2791 done
2792 }
2793
2794 do_random(){
2795 action=$1
2796 shift
2797 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2798 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2799 }
2800
2801 for opt do
2802 optval="${opt#*=}"
2803 case "$opt" in
2804 --extra-ldflags=*)
2805 add_ldflags $optval
2806 ;;
2807 --extra-ldexeflags=*)
2808 add_ldexeflags $optval
2809 ;;
2810 --extra-ldsoflags=*)
2811 add_ldsoflags $optval
2812 ;;
2813 --extra-libs=*)
2814 add_extralibs $optval
2815 ;;
2816 --disable-devices)
2817 disable $INDEV_LIST $OUTDEV_LIST
2818 ;;
2819 --enable-debug=*)
2820 debuglevel="$optval"
2821 ;;
2822 --disable-programs)
2823 disable $PROGRAM_LIST
2824 ;;
2825 --disable-everything)
2826 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2827 ;;
2828 --disable-all)
2829 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2830 disable $LIBRARY_LIST $PROGRAM_LIST doc
2831 ;;
2832 --enable-random|--disable-random)
2833 action=${opt%%-random}
2834 do_random ${action#--} $COMPONENT_LIST
2835 ;;
2836 --enable-random=*|--disable-random=*)
2837 action=${opt%%-random=*}
2838 do_random ${action#--} $optval
2839 ;;
2840 --enable-*=*|--disable-*=*)
2841 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2842 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2843 eval list=\$$(toupper $thing)_LIST
2844 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2845 $action $(filter "$name" $list)
2846 ;;
2847 --enable-avserver|--disable-avserver*)
2848 warn "avserver has been removed, the ${opt} option is only"\
2849 "provided for compatibility and will be removed in the future"
2850 ;;
2851 --enable-yasm|--disable-yasm)
2852 warn "The ${opt} option is only provided for compatibility and will be\n"\
2853 "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2854 test $opt = --enable-yasm && x86asm=yes || x86asm=no
2855 ;;
2856 --enable-?*|--disable-?*)
2857 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2858 if is_in $option $COMPONENT_LIST; then
2859 test $action = disable && action=unset
2860 eval $action \$$(toupper ${option%s})_LIST
2861 elif is_in $option $CMDLINE_SELECT; then
2862 $action $option
2863 else
2864 die_unknown $opt
2865 fi
2866 ;;
2867 --list-*)
2868 NAME="${opt#--list-}"
2869 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2870 NAME=${NAME%s}
2871 eval show_list $NAME \$$(toupper $NAME)_LIST
2872 ;;
2873 --help|-h) show_help
2874 ;;
2875 --quiet|-q) quiet=yes
2876 ;;
2877 *)
2878 optname="${opt%%=*}"
2879 optname="${optname#--}"
2880 optname=$(echo "$optname" | sed 's/-/_/g')
2881 if is_in $optname $CMDLINE_SET; then
2882 eval $optname='$optval'
2883 elif is_in $optname $CMDLINE_APPEND; then
2884 append $optname "$optval"
2885 else
2886 die_unknown $opt
2887 fi
2888 ;;
2889 esac
2890 done
2891
2892 for e in $env; do
2893 eval "export $e"
2894 done
2895
2896 disabled logging && logfile=/dev/null
2897
2898 # Die early if licensing-related configure options are incompatible.
2899 die_license_disabled() {
2900 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2901 }
2902
2903 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2904 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2905 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2906
2907 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2908
2909 enabled_all gnutls openssl &&
2910 die "GnuTLS and OpenSSL must not be enabled at the same time."
2911
2912 # Disable all the library-specific components if the library itself
2913 # is disabled, see AVCODEC_LIST and following _LIST variables.
2914
2915 disable_components(){
2916 disabled ${1} && disable $(
2917 eval components="\$$(toupper ${1})_COMPONENTS"
2918 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2919 )
2920 }
2921
2922 map 'disable_components $v' $LIBRARY_LIST
2923
2924 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2925 set >> $logfile
2926
2927 case "$toolchain" in
2928 *-asan)
2929 cc_default="${toolchain%-asan}"
2930 add_cflags -fsanitize=address
2931 add_ldflags -fsanitize=address
2932 ;;
2933 *-msan)
2934 cc_default="${toolchain%-msan}"
2935 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2936 add_ldflags -fsanitize=memory
2937 ;;
2938 *-tsan)
2939 cc_default="${toolchain%-tsan}"
2940 add_cflags -fsanitize=thread -fPIE
2941 add_ldflags -fsanitize=thread -pie
2942 case "$toolchain" in
2943 gcc-tsan)
2944 add_cflags -fPIC
2945 add_ldflags -fPIC
2946 ;;
2947 esac
2948 ;;
2949 *-usan)
2950 cc_default="${toolchain%-usan}"
2951 add_cflags -fsanitize=undefined
2952 add_ldflags -fsanitize=undefined
2953 case "$toolchain" in
2954 clang-usan)
2955 add_cflags -O1
2956 ;;
2957 esac
2958 ;;
2959 valgrind-*)
2960 target_exec_default="valgrind"
2961 case "$toolchain" in
2962 valgrind-massif)
2963 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2964 ;;
2965 valgrind-memcheck)
2966 target_exec_args="--track-origins=yes --leak-check=full"
2967 ;;
2968 esac
2969 ;;
2970 msvc)
2971 # Check whether the current MSVC version needs the C99 converter.
2972 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2973 # support enough of C99 to build libav. Default to the new
2974 # behaviour if the regexp was unable to match anything, since this
2975 # successfully parses the version number of existing supported
2976 # versions that require the converter (MSVC 2010 and 2012).
2977 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2978 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2979 cc_default="cl"
2980 else
2981 cc_default="c99wrap cl"
2982 fi
2983 ld_default="$source_path/compat/windows/mslink"
2984 nm_default="dumpbin -symbols"
2985 ar_default="lib"
2986 case "$arch" in
2987 arm*)
2988 as_default="armasm"
2989 ;;
2990 esac
2991 target_os_default="win32"
2992 # Use a relative path for TMPDIR. This makes sure all the
2993 # ffconf temp files are written with a relative path, avoiding
2994 # issues with msys/win32 path conversion for MSVC parameters
2995 # such as -Fo<file> or -out:<file>.
2996 TMPDIR=.
2997 ;;
2998 icl)
2999 cc_default="icl"
3000 ld_default="xilink"
3001 nm_default="dumpbin -symbols"
3002 ar_default="xilib"
3003 target_os_default="win32"
3004 TMPDIR=.
3005 ;;
3006 gcov)
3007 add_cflags -fprofile-arcs -ftest-coverage
3008 add_ldflags -fprofile-arcs -ftest-coverage
3009 ;;
3010 llvm-cov)
3011 add_cflags -fprofile-arcs -ftest-coverage
3012 add_ldflags --coverage
3013 ;;
3014 hardened)
3015 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3016 add_cflags -fno-strict-overflow -fstack-protector-all
3017 add_ldflags -Wl,-z,relro -Wl,-z,now
3018 ;;
3019 ?*)
3020 die "Unknown toolchain $toolchain"
3021 ;;
3022 esac
3023
3024 test -n "$cross_prefix" && enable cross_compile
3025
3026 if enabled cross_compile; then
3027 test -n "$arch" && test -n "$target_os" ||
3028 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3029 fi
3030
3031 ar_default="${cross_prefix}${ar_default}"
3032 cc_default="${cross_prefix}${cc_default}"
3033 objcc_default="${cross_prefix}${objcc_default}"
3034 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3035 nm_default="${cross_prefix}${nm_default}"
3036 pkg_config_default="${cross_prefix}${pkg_config_default}"
3037 ranlib="${cross_prefix}${ranlib}"
3038 strip="${cross_prefix}${strip}"
3039
3040 sysinclude_default="${sysroot}/usr/include"
3041
3042 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3043 enabled cross_compile || host_cc_default=$cc
3044 set_default host_cc
3045
3046 if ! $pkg_config --version >/dev/null 2>&1; then
3047 warn "$pkg_config not found, library detection may fail."
3048 pkg_config=false
3049 fi
3050
3051 exesuf() {
3052 case $1 in
3053 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3054 esac
3055 }
3056
3057 EXESUF=$(exesuf $target_os)
3058 HOSTEXESUF=$(exesuf $host_os)
3059
3060 # set temporary file name
3061 : ${TMPDIR:=$TEMPDIR}
3062 : ${TMPDIR:=$TMP}
3063 : ${TMPDIR:=/tmp}
3064
3065 if ! check_cmd mktemp -u XXXXXX; then
3066 # simple replacement for missing mktemp
3067 # NOT SAFE FOR GENERAL USE
3068 mktemp(){
3069 tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3070 echo "$tmpname"
3071 mkdir "$tmpname"
3072 }
3073 fi
3074
3075 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3076 die "Unable to create temporary directory in $TMPDIR."
3077
3078 tmpfile(){
3079 tmp="${AVTMPDIR}/test"$2
3080 (set -C; exec > $tmp) 2> /dev/null ||
3081 die "Unable to create temporary file in $AVTMPDIR."
3082 eval $1=$tmp
3083 }
3084
3085 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3086 trap 'exit 2' INT
3087
3088 tmpfile TMPASM .asm
3089 tmpfile TMPC .c
3090 tmpfile TMPE $EXESUF
3091 tmpfile TMPH .h
3092 tmpfile TMPO .o
3093 tmpfile TMPS .S
3094 tmpfile TMPSH .sh
3095 tmpfile TMPV .ver
3096
3097 unset -f mktemp
3098
3099 chmod +x $TMPE
3100
3101 # make sure we can execute files in $TMPDIR
3102 cat > $TMPSH 2>> $logfile <<EOF
3103 #! /bin/sh
3104 EOF
3105 chmod +x $TMPSH >> $logfile 2>&1
3106 if ! $TMPSH >> $logfile 2>&1; then
3107 cat <<EOF
3108 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3109 variable to another directory and make sure that it is not mounted noexec.
3110 EOF
3111 die "Sanity test failed."
3112 fi
3113
3114 armasm_flags(){
3115 for flag; do
3116 case $flag in
3117 # Filter out MSVC cl.exe options from cflags that shouldn't
3118 # be passed to gas-preprocessor
3119 -M[TD]*) ;;
3120 *) echo $flag ;;
3121 esac
3122 done
3123 }
3124
3125 ccc_flags(){
3126 for flag; do
3127 case $flag in
3128 -std=c99) echo -c99 ;;
3129 -mcpu=*) echo -arch ${flag#*=} ;;
3130 -mieee) echo -ieee ;;
3131 -O*|-fast) echo $flag ;;
3132 -fno-math-errno) echo -assume nomath_errno ;;
3133 -g) echo -g3 ;;
3134 -Wall) echo -msg_enable level2 ;;
3135 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3136 -Wl,*) echo $flag ;;
3137 -f*|-W*) ;;
3138 *) echo $flag ;;
3139 esac
3140 done
3141 }
3142
3143 cparser_flags(){
3144 for flag; do
3145 case $flag in
3146 -Wno-switch) echo -Wno-switch-enum ;;
3147 -Wno-format-zero-length) ;;
3148 -Wdisabled-optimization) ;;
3149 -Wno-pointer-sign) echo -Wno-other ;;
3150 *) echo $flag ;;
3151 esac
3152 done
3153 }
3154
3155 msvc_common_flags(){
3156 for flag; do
3157 case $flag in
3158 # In addition to specifying certain flags under the compiler
3159 # specific filters, they must be specified here as well or else the
3160 # generic catch all at the bottom will print the original flag.
3161 -Wall) ;;
3162 -Wextra) ;;
3163 -std=c99) ;;
3164 # Common flags
3165 -fomit-frame-pointer) ;;
3166 -g) echo -Z7 ;;
3167 -fno-math-errno) ;;
3168 -fno-common) ;;
3169 -fno-signed-zeros) ;;
3170 -fPIC) ;;
3171 -mthumb) ;;
3172 -march=*) ;;
3173 -lz) echo zlib.lib ;;
3174 -lx264) echo libx264.lib ;;
3175 -l*) echo ${flag#-l}.lib ;;
3176 -L*) echo -libpath:${flag#-L} ;;
3177 *) echo $flag ;;
3178 esac
3179 done
3180 }
3181
3182 msvc_flags(){
3183 msvc_common_flags "$@"
3184 for flag; do
3185 case $flag in
3186 -Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
3187 -wd4554 ;;
3188 -Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3189 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3190 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3191 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3192 esac
3193 done
3194 }
3195
3196 icl_flags(){
3197 msvc_common_flags "$@"
3198 for flag; do
3199 case $flag in
3200 # Despite what Intel's documentation says -Wall, which is supported
3201 # on Windows, does enable remarks so disable them here.
3202 -Wall) echo $flag -Qdiag-disable:remark ;;
3203 -std=c99) echo -Qstd=c99 ;;
3204 esac
3205 done
3206 }
3207
3208 pgi_flags(){
3209 for flag; do
3210 case $flag in
3211 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3212 -fomit-frame-pointer) echo -Mnoframe ;;
3213 -g) echo -gopt ;;
3214 *) echo $flag ;;
3215 esac
3216 done
3217 }
3218
3219 suncc_flags(){
3220 for flag; do
3221 case $flag in
3222 -march=*|-mcpu=*)
3223 case "${flag#*=}" in
3224 native) echo -xtarget=native ;;
3225 v9|niagara) echo -xarch=sparc ;;
3226 ultrasparc) echo -xarch=sparcvis ;;
3227 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3228 i586|pentium) echo -xchip=pentium ;;
3229 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3230 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3231 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3232 pentium4*) echo -xtarget=pentium4 ;;
3233 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3234 *-sse3) echo -xarch=sse3 ;;
3235 core2) echo -xarch=ssse3 -xchip=core2 ;;
3236 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3237 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3238 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3239 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3240 k8|opteron|athlon64|athlon-fx)
3241 echo -xarch=sse2a ;;
3242 athlon*) echo -xarch=pentium_proa ;;
3243 esac
3244 ;;
3245 -std=c99) echo -xc99 ;;
3246 -fomit-frame-pointer) echo -xregs=frameptr ;;
3247 -fPIC) echo -KPIC -xcode=pic32 ;;
3248 -W*,*) echo $flag ;;
3249 -f*-*|-W*|-mimpure-text) ;;
3250 -shared) echo -G ;;
3251 *) echo $flag ;;
3252 esac
3253 done
3254 }
3255
3256 tms470_flags(){
3257 for flag; do
3258 case $flag in
3259 -march=*|-mcpu=*)
3260 case "${flag#*=}" in
3261 armv7-a|cortex-a*) echo -mv=7a8 ;;
3262 armv7-r|cortex-r*) echo -mv=7r4 ;;
3263 armv7-m|cortex-m*) echo -mv=7m3 ;;
3264 armv6*|arm11*) echo -mv=6 ;;
3265 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3266 echo -mv=5e ;;
3267 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3268 esac
3269 ;;
3270 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3271 -mfpu=vfp) echo --float_support=vfpv2 ;;
3272 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3273 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3274 -msoft-float) echo --float_support=vfplib ;;
3275 -O[0-3]|-mf=*) echo $flag ;;
3276 -g) echo -g -mn ;;
3277 -pds=*) echo $flag ;;
3278 -D*|-I*) echo $flag ;;
3279 --gcc|--abi=*) echo $flag ;;
3280 -me) echo $flag ;;
3281 esac
3282 done
3283 }
3284
3285 probe_cc(){
3286 pfx=$1
3287 _cc=$2
3288
3289 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3290 unset _ld_o _ldflags _ld_lib _ld_path
3291 unset _depflags _DEPCMD _DEPFLAGS
3292 _flags_filter=echo
3293
3294 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3295 _type=llvm_gcc
3296 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3297 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3298 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3299 _cflags_speed='-O3'
3300 _cflags_size='-Os'
3301 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3302 _type=gcc
3303 gcc_version=$($_cc --version | head -n1)
3304 gcc_basever=$($_cc -dumpversion)
3305 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3306 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3307 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3308 if ! $_cc -dumpversion | grep -q '^2\.'; then
3309 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3310 fi
3311 _cflags_speed='-O3'
3312 _cflags_size='-Os'
3313 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3314 _type=icc
3315 _ident=$($_cc --version | head -n1)
3316 _depflags='-MMD'
3317 _cflags_speed='-O3'
3318 _cflags_size='-Os'
3319 _cflags_noopt='-O1'
3320 elif $_cc -v 2>&1 | grep -q xlc; then
3321 _type=xlc
3322 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3323 _cflags_speed='-O5'
3324 _cflags_size='-O5 -qcompact'
3325 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3326 _type=ccc
3327 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3328 _DEPFLAGS='-M'
3329 _cflags_speed='-fast'
3330 _cflags_size='-O1'
3331 _flags_filter=ccc_flags
3332 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3333 test -d "$sysroot" || die "No valid sysroot specified."
3334 _type=armcc
3335 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3336 armcc_conf="$PWD/armcc.conf"
3337 $_cc --arm_linux_configure \
3338 --arm_linux_config_file="$armcc_conf" \
3339 --configure_sysroot="$sysroot" \
3340 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3341 die "Error creating armcc configuration file."
3342 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3343 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3344 as_default="${cross_prefix}gcc"
3345 _depflags='-MMD'
3346 _cflags_speed='-O3'
3347 _cflags_size='-Os'
3348 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3349 _type=tms470
3350 _ident=$($_cc -version | head -n1 | tr -s ' ')
3351 _flags='--gcc --abi=eabi -me'
3352 _cc_e='-ppl -fe=$@'
3353 _cc_o='-fe=$@'
3354 _depflags='-ppa -ppd=$(@:.o=.d)'
3355 _cflags_speed='-O3 -mf=5'
3356 _cflags_size='-O3 -mf=2'
3357 _flags_filter=tms470_flags
3358 elif $_cc -v 2>&1 | grep -q clang; then
3359 _type=clang
3360 _ident=$($_cc --version 2>/dev/null | head -n1)
3361 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3362 _cflags_speed='-O3'
3363 _cflags_size='-Os'
3364 elif $_cc -V 2>&1 | grep -q Sun; then
3365 _type=suncc
3366 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3367 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3368 _DEPFLAGS='-xM1 -xc99'
3369 _ldflags='-std=c99'
3370 _cflags_speed='-O5'
3371 _cflags_size='-O5 -xspace'
3372 _flags_filter=suncc_flags
3373 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3374 _type=pathscale
3375 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3376 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3377 _cflags_speed='-O2'
3378 _cflags_size='-Os'
3379 _flags_filter='filter_out -Wdisabled-optimization'
3380 elif $_cc -v 2>&1 | grep -q Open64; then
3381 _type=open64
3382 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3383 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3384 _cflags_speed='-O2'
3385 _cflags_size='-Os'
3386 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3387 elif $_cc -V 2>&1 | grep -q Portland; then
3388 _type=pgi
3389 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3390 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3391 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3392 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3393 _cflags_noopt="-O1"
3394 _flags_filter=pgi_flags
3395 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3396 _type=armasm
3397 _ident=$($_cc | head -n1)
3398 # 4509: "This form of conditional instruction is deprecated"
3399 _flags="-nologo -ignore 4509"
3400 _flags_filter=armasm_flags
3401 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3402 _type=msvc
3403 _ident=$($_cc 2>&1 | head -n1)
3404 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3405 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3406 _cflags_speed="-O2"
3407 _cflags_size="-O1"
3408 _cflags_noopt="-O1"
3409 if $_cc -nologo- 2>&1 | grep -q Linker; then
3410 _ld_o='-out:$@'
3411 else
3412 _ld_o='-Fe$@'
3413 fi
3414 _cc_o='-Fo$@'
3415 _cc_e='-P -Fi$@'
3416 _flags_filter=msvc_flags
3417 _ld_lib='lib%.a'
3418 _ld_path='-libpath:'
3419 _flags='-nologo'
3420 elif $_cc 2>&1 | grep -q Intel; then
3421 _type=icl
3422 _ident=$($_cc 2>&1 | head -n1)
3423 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3424 # Not only is O3 broken on 13.x+ but it is slower on all previous
3425 # versions (tested) as well.
3426 _cflags_speed="-O2"
3427 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3428 if $_cc 2>&1 | grep -q Linker; then
3429 _ld_o='-out:$@'
3430 else
3431 _ld_o='-Fe$@'
3432 fi
3433 _cc_o='-Fo$@'
3434 _cc_e='-P'
3435 _flags_filter=icl_flags
3436 _ld_lib='lib%.a'
3437 _ld_path='-libpath:'
3438 # -Qdiag-error to make icl error when seeing certain unknown arguments
3439 _flags='-nologo -Qdiag-error:4044,10157'
3440 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3441 # with MSVC which enables it by default.
3442 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3443 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3444 # lld can emulate multiple different linkers; in ms link.exe mode,
3445 # the -? parameter gives the help output which contains an identifyable
3446 # string, while it gives an error in other modes.
3447 _type=lld-link
3448 # The link.exe mode doesn't have a switch for getting the version,
3449 # but we can force it back to gnu mode and get the version from there.
3450 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3451 _ld_o='-out:$@'
3452 _flags_filter=msvc_flags
3453 _ld_lib='lib%.a'
3454 _ld_path='-libpath:'
3455 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3456 _type=cparser
3457 _ident=$($_cc --version | head -n1)
3458 _depflags='-MMD'
3459 _cflags_speed='-O4'
3460 _cflags_size='-O2'
3461 _flags_filter=cparser_flags
3462 fi
3463
3464 eval ${pfx}_type=\$_type
3465 eval ${pfx}_ident=\$_ident
3466 }
3467
3468 set_ccvars(){
3469 eval ${1}_C=\${_cc_c-\${${1}_C}}
3470 eval ${1}_E=\${_cc_e-\${${1}_E}}
3471 eval ${1}_O=\${_cc_o-\${${1}_O}}
3472
3473 if [ -n "$_depflags" ]; then
3474 eval ${1}_DEPFLAGS=\$_depflags
3475 else
3476 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3477 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3478 eval DEP${1}FLAGS=\$_flags
3479 fi
3480 }
3481
3482 probe_cc cc "$cc"
3483 cflags_filter=$_flags_filter
3484 cflags_speed=$_cflags_speed
3485 cflags_size=$_cflags_size
3486 cflags_noopt=$_cflags_noopt
3487 add_cflags $_flags $_cflags
3488 cc_ldflags=$_ldflags
3489 set_ccvars CC
3490
3491 probe_cc hostcc "$host_cc"
3492 host_cflags_filter=$_flags_filter
3493 host_cflags_speed=$_cflags_speed
3494 add_host_cflags $_flags $_cflags
3495 set_ccvars HOSTCC
3496
3497 test -n "$cc_type" && enable $cc_type ||
3498 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3499
3500 : ${as_default:=$cc}
3501 : ${objcc_default:=$cc}
3502 : ${dep_cc_default:=$cc}
3503 : ${ld_default:=$cc}
3504 : ${host_ld_default:=$host_cc}
3505 set_default ar as objcc dep_cc ld host_ld
3506
3507 probe_cc as "$as"
3508 asflags_filter=$_flags_filter
3509 add_asflags $_flags $_cflags
3510 set_ccvars AS
3511
3512 probe_cc objcc "$objcc"
3513 objcflags_filter=$_flags_filter
3514 add_objcflags $_flags $_cflags
3515 set_ccvars OBJC
3516
3517 probe_cc ld "$ld"
3518 ldflags_filter=$_flags_filter
3519 add_ldflags $_flags $_ldflags
3520 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3521 LD_O=${_ld_o-$LD_O}
3522 LD_LIB=${_ld_lib-$LD_LIB}
3523 LD_PATH=${_ld_path-$LD_PATH}
3524
3525 probe_cc hostld "$host_ld"
3526 host_ldflags_filter=$_flags_filter
3527 add_host_ldflags $_flags $_ldflags
3528 HOSTLD_O=${_ld_o-$HOSTLD_O}
3529
3530 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3531 probe_cc depcc "$dep_cc"
3532 CCDEP=${_DEPCMD:-$DEPCMD}
3533 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3534 DEPCCFLAGS=$_flags
3535 fi
3536
3537 if $ar 2>&1 | grep -q Microsoft; then
3538 arflags="-nologo"
3539 ar_o='-out:$@'
3540 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3541 arflags="rq"
3542 ar_o='$@'
3543 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3544 arflags='-Xany -r -c'
3545 ar_o='$@'
3546 else
3547 arflags="rc"
3548 ar_o='$@'
3549 fi
3550
3551 add_cflags $extra_cflags
3552 add_objcflags $extra_objcflags
3553 add_asflags $extra_cflags
3554
3555 if test -n "$sysroot"; then
3556 case "$cc_type" in
3557 gcc|llvm_gcc|clang)
3558 add_cppflags --sysroot="$sysroot"
3559 add_ldflags --sysroot="$sysroot"
3560 ;;
3561 tms470)
3562 add_cppflags -I"$sysinclude"
3563 add_ldflags --sysroot="$sysroot"
3564 ;;
3565 esac
3566 fi
3567
3568 if test "$cpu" = host; then
3569 enabled cross_compile &&
3570 die "--cpu=host makes no sense when cross-compiling."
3571
3572 case "$cc_type" in
3573 gcc|llvm_gcc)
3574 check_native(){
3575 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3576 sed -n "/cc1.*$1=/{
3577 s/.*$1=\\([^ ]*\\).*/\\1/
3578 p
3579 q
3580 }" $TMPE
3581 }
3582 cpu=$(check_native -march || check_native -mcpu)
3583 ;;
3584 esac
3585
3586 test "${cpu:-host}" = host &&
3587 die "--cpu=host not supported with compiler $cc"
3588 fi
3589
3590 # Deal with common $arch aliases
3591 case "$arch" in
3592 aarch64|arm64)
3593 arch="aarch64"
3594 ;;
3595 arm*)
3596 arch="arm"
3597 ;;
3598 mips*|IP*)
3599 case "$arch" in
3600 *el)
3601 add_cppflags -EL
3602 add_ldflags -EL
3603 ;;
3604 *eb)
3605 add_cppflags -EB
3606 add_ldflags -EB
3607 ;;
3608 esac
3609 arch="mips"
3610 ;;
3611 parisc*|hppa*)
3612 arch="parisc"
3613 ;;
3614 "Power Macintosh"|ppc*|powerpc*)
3615 arch="ppc"
3616 ;;
3617 s390|s390x)
3618 arch="s390"
3619 ;;
3620 sh4|sh)
3621 arch="sh4"
3622 ;;
3623 sun4u|sparc*)
3624 arch="sparc"
3625 ;;
3626 tilegx|tile-gx)
3627 arch="tilegx"
3628 ;;
3629 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3630 arch="x86"
3631 ;;
3632 esac
3633
3634 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3635 enable $arch
3636
3637 # Add processor-specific flags
3638 if enabled aarch64; then
3639
3640 case $cpu in
3641 armv*)
3642 cpuflags="-march=$cpu"
3643 ;;
3644 *)
3645 cpuflags="-mcpu=$cpu"
3646 ;;
3647 esac
3648
3649 elif enabled alpha; then
3650
3651 cpuflags="-mcpu=$cpu"
3652
3653 elif enabled arm; then
3654
3655 check_arm_arch() {
3656 check_cpp_condition stddef.h \
3657 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3658 $cpuflags
3659 }
3660
3661 probe_arm_arch() {
3662 if check_arm_arch 4; then echo armv4
3663 elif check_arm_arch 4T; then echo armv4t
3664 elif check_arm_arch 5; then echo armv5
3665 elif check_arm_arch 5E; then echo armv5e
3666 elif check_arm_arch 5T; then echo armv5t
3667 elif check_arm_arch 5TE; then echo armv5te
3668 elif check_arm_arch 5TEJ; then echo armv5te
3669 elif check_arm_arch 6; then echo armv6
3670 elif check_arm_arch 6J; then echo armv6j
3671 elif check_arm_arch 6K; then echo armv6k
3672 elif check_arm_arch 6Z; then echo armv6z
3673 elif check_arm_arch 6ZK; then echo armv6zk
3674 elif check_arm_arch 6T2; then echo armv6t2
3675 elif check_arm_arch 7; then echo armv7
3676 elif check_arm_arch 7A 7_A; then echo armv7-a
3677 elif check_arm_arch 7S; then echo armv7-a
3678 elif check_arm_arch 7R 7_R; then echo armv7-r
3679 elif check_arm_arch 7M 7_M; then echo armv7-m
3680 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3681 elif check_arm_arch 8A 8_A; then echo armv8-a
3682 fi
3683 }
3684
3685 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3686
3687 case $cpu in
3688 armv*)
3689 cpuflags="-march=$cpu"
3690 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3691 ;;
3692 *)
3693 cpuflags="-mcpu=$cpu"
3694 case $cpu in
3695 cortex-a*) subarch=armv7a ;;
3696 cortex-r*) subarch=armv7r ;;
3697 cortex-m*) enable thumb; subarch=armv7m ;;
3698 arm11*) subarch=armv6 ;;
3699 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3700 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3701 *) subarch=$(probe_arm_arch) ;;
3702 esac
3703 ;;
3704 esac
3705
3706 case "$subarch" in
3707 armv5t*) enable fast_clz ;;
3708 armv[6-8]*) enable fast_clz fast_unaligned ;;
3709 esac
3710
3711 elif enabled avr32; then
3712
3713 case $cpu in
3714 ap7[02]0[0-2])
3715 subarch="avr32_ap"
3716 cpuflags="-mpart=$cpu"
3717 ;;
3718 ap)
3719 subarch="avr32_ap"
3720 cpuflags="-march=$cpu"
3721 ;;
3722 uc3[ab]*)
3723 subarch="avr32_uc"
3724 cpuflags="-mcpu=$cpu"
3725 ;;
3726 uc)
3727 subarch="avr32_uc"
3728 cpuflags="-march=$cpu"
3729 ;;
3730 esac
3731
3732 elif enabled bfin; then
3733
3734 cpuflags="-mcpu=$cpu"
3735
3736 elif enabled mips; then
3737
3738 cpuflags="-march=$cpu"
3739
3740 elif enabled ppc; then
3741
3742 disable ldbrx
3743
3744 case $(tolower $cpu) in
3745 601|ppc601|powerpc601)
3746 cpuflags="-mcpu=601"
3747 disable altivec
3748 ;;
3749 603*|ppc603*|powerpc603*)
3750 cpuflags="-mcpu=603"
3751 disable altivec
3752 ;;
3753 604*|ppc604*|powerpc604*)
3754 cpuflags="-mcpu=604"
3755 disable altivec
3756 ;;
3757 g3|75*|ppc75*|powerpc75*)
3758 cpuflags="-mcpu=750"
3759 disable altivec
3760 ;;
3761 g4|745*|ppc745*|powerpc745*)
3762 cpuflags="-mcpu=7450"
3763 disable vsx
3764 ;;
3765 74*|ppc74*|powerpc74*)
3766 cpuflags="-mcpu=7400"
3767 disable vsx
3768 ;;
3769 g5|970|ppc970|powerpc970)
3770 cpuflags="-mcpu=970"
3771 disable vsx
3772 ;;
3773 power[3-6]*)
3774 cpuflags="-mcpu=$cpu"
3775 disable vsx
3776 ;;
3777 power[7-8]*)
3778 cpuflags="-mcpu=$cpu"
3779 enable ldbrx
3780 ;;
3781 cell)
3782 cpuflags="-mcpu=cell"
3783 enable ldbrx
3784 disable vsx
3785 ;;
3786 e500mc)
3787 cpuflags="-mcpu=e500mc"
3788 disable altivec
3789 ;;
3790 e500v2)
3791 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3792 disable altivec
3793 disable dcbzl
3794 ;;
3795 e500)
3796 cpuflags="-mcpu=8540 -mhard-float"
3797 disable altivec
3798 disable dcbzl
3799 ;;
3800 esac
3801
3802 elif enabled sparc; then
3803
3804 case $cpu in
3805 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3806 cpuflags="-mcpu=$cpu"
3807 ;;
3808 ultrasparc*|niagara[234])
3809 cpuflags="-mcpu=$cpu"
3810 ;;
3811 esac
3812
3813 elif enabled x86; then
3814
3815 case $cpu in
3816 i[345]86|pentium)
3817 cpuflags="-march=$cpu"
3818 disable i686
3819 disable mmx
3820 ;;
3821 # targets that do NOT support nopl and conditional mov (cmov)
3822 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3823 cpuflags="-march=$cpu"
3824 disable i686
3825 ;;
3826 # targets that do support nopl and conditional mov (cmov)
3827 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3828 cpuflags="-march=$cpu"
3829 enable i686
3830 enable fast_cmov
3831 ;;
3832 # targets that do support conditional mov but on which it's slow
3833 pentium4|pentium4m|prescott|nocona)
3834 cpuflags="-march=$cpu"
3835 enable i686
3836 disable fast_cmov
3837 ;;
3838 esac
3839
3840 fi
3841
3842 if [ "$cpu" != generic ]; then
3843 add_cflags $cpuflags
3844 add_asflags $cpuflags
3845 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3846 fi
3847
3848 # compiler sanity check
3849 check_exec <<EOF
3850 int main(void){ return 0; }
3851 EOF
3852 if test "$?" != 0; then
3853 echo "$cc is unable to create an executable file."
3854 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3855 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3856 echo "Only do this if you know what cross compiling means."
3857 fi
3858 die "C compiler test failed."
3859 fi
3860
3861 add_cppflags -D_ISOC99_SOURCE
3862
3863 # some compilers silently accept -std=c11, so we also need to check that the
3864 # version macro is defined properly
3865 check_cpp_condition stdlib.h "__STDC_VERSION__ >= 201112L" -std=c11 &&
3866 add_cflags -std=c11 ||
3867 check_cflags -std=c99
3868
3869 check_cppflags -D_FILE_OFFSET_BITS=64
3870 check_cppflags -D_LARGEFILE_SOURCE
3871
3872 add_host_cppflags -D_ISOC99_SOURCE
3873 check_host_cflags -std=c99
3874 check_host_cflags -Wall
3875 check_host_cflags $host_cflags_speed
3876
3877 check_64bit(){
3878 arch32=$1
3879 arch64=$2
3880 expr=$3
3881 check_code cc "" "int test[2*($expr) - 1]" &&
3882 subarch=$arch64 || subarch=$arch32
3883 }
3884
3885 case "$arch" in
3886 aarch64|alpha|ia64)
3887 spic=$shared
3888 ;;
3889 mips)
3890 check_64bit mips mips64 '_MIPS_SIM > 1'
3891 spic=$shared
3892 ;;
3893 parisc)
3894 check_64bit parisc parisc64 'sizeof(void *) > 4'
3895 spic=$shared
3896 ;;
3897 ppc)
3898 check_64bit ppc ppc64 'sizeof(void *) > 4'
3899 spic=$shared
3900 ;;
3901 s390)
3902 check_64bit s390 s390x 'sizeof(void *) > 4'
3903 spic=$shared
3904 ;;
3905 sparc)
3906 check_64bit sparc sparc64 'sizeof(void *) > 4'
3907 spic=$shared
3908 ;;
3909 x86)
3910 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3911 if test "$subarch" = "x86_64"; then
3912 spic=$shared
3913 fi
3914 ;;
3915 esac
3916
3917 enable $subarch
3918 enabled spic && enable_weak pic
3919
3920 enabled x86_64 && objformat=elf64 || objformat="elf32"
3921
3922 # OS specific
3923 case $target_os in
3924 aix)
3925 SHFLAGS=-shared
3926 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3927 enabled shared && add_ldflags -Wl,-brtl
3928 ;;
3929 android)
3930 disable symver
3931 enable section_data_rel_ro
3932 SLIB_INSTALL_NAME='$(SLIBNAME)'
3933 SLIB_INSTALL_LINKS=
3934 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3935 ;;
3936 haiku)
3937 prefix_default="/boot/common"
3938 network_extralibs="-lnetwork"
3939 host_extralibs=
3940 ;;
3941 sunos)
3942 SHFLAGS='-shared -Wl,-h,$$(@F)'
3943 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3944 network_extralibs="-lsocket -lnsl"
3945 # When using suncc to build, the Solaris linker will mark
3946 # an executable with each instruction set encountered by
3947 # the Solaris assembler. As our libraries contain their own
3948 # guards for processor-specific code, instead suppress
3949 # generation of the HWCAPS ELF section on Solaris x86 only.
3950 enabled_all suncc x86 &&
3951 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3952 add_ldflags -Wl,-M,mapfile
3953 nm_default='nm -P -g'
3954 version_script='-M'
3955 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3956 ;;
3957 netbsd)
3958 disable symver
3959 oss_indev_extralibs="-lossaudio"
3960 oss_outdev_extralibs="-lossaudio"
3961 ;;
3962 openbsd|bitrig)
3963 disable symver
3964 SHFLAGS='-shared'
3965 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3966 SLIB_INSTALL_LINKS=
3967 oss_indev_extralibs="-lossaudio"
3968 oss_outdev_extralibs="-lossaudio"
3969 ;;
3970 dragonfly)
3971 disable symver
3972 ;;
3973 freebsd)
3974 ;;
3975 bsd/os)
3976 add_extralibs -lpoll -lgnugetopt
3977 ;;
3978 darwin)
3979 enabled ppc && add_asflags -force_cpusubtype_ALL
3980 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3981 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3982 add_ldflags -Wl,-dynamic,-search_paths_first
3983 check_cflags -Werror=partial-availability
3984 SLIBSUF=".dylib"
3985 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3986 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3987 enabled x86_64 && objformat="macho64" || objformat="macho32"
3988 enabled_any pic shared ||
3989 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3990 check_header dispatch/dispatch.h &&
3991 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3992 if test -n "$sysroot"; then
3993 is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3994 is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
3995 fi
3996 ;;
3997 msys*)
3998 die "Native MSYS builds are discouraged, please use the MINGW environment."
3999 ;;
4000 mingw32*|mingw64*)
4001 if test $target_os = "mingw32ce"; then
4002 disable network
4003 else
4004 target_os=mingw32
4005 fi
4006 LIBTARGET=i386
4007 if enabled x86_64; then
4008 LIBTARGET="i386:x86-64"
4009 elif enabled arm; then
4010 LIBTARGET=arm-wince
4011 fi
4012 check_ldflags -Wl,--nxcompat
4013 check_ldflags -Wl,--dynamicbase
4014 shlibdir_default="$bindir_default"
4015 SLIBPREF=""
4016 SLIBSUF=".dll"
4017 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4018 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4019 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4020 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4021 SLIB_INSTALL_LINKS=
4022 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4023 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4024 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4025 enabled x86_64 && objformat="win64" || objformat="win32"
4026 dlltool="${cross_prefix}dlltool"
4027 ranlib=:
4028 enable dos_paths
4029 ;;
4030 win32|win64)
4031 disable symver
4032 if enabled shared; then
4033 # Link to the import library instead of the normal static library
4034 # for shared libs.
4035 LD_LIB='%.lib'
4036 # Cannot build both shared and static libs with MSVC or icl.
4037 disable static
4038 fi
4039 shlibdir_default="$bindir_default"
4040 SLIBPREF=""
4041 SLIBSUF=".dll"
4042 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4043 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4044 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4045 SLIB_INSTALL_NAME='$(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=$sysinclude/gcce/gcce.h -fvisibility=default
4116 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4117 add_ldflags -Wl,--target1-abs,--no-undefined \
4118 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4119 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4120 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4121 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4122 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4123 ;;
4124 osf1)
4125 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4126 ;;
4127 minix)
4128 ;;
4129 none)
4130 ;;
4131 *)
4132 die "Unknown OS '$target_os'."
4133 ;;
4134 esac
4135
4136 # determine libc flavour
4137
4138 probe_libc(){
4139 pfx=$1
4140 pfx_no_=${pfx%_}
4141 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4142 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4143 eval ${pfx}libc_type=uclibc
4144 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4145 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4146 eval ${pfx}libc_type=glibc
4147 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4148 # MinGW headers can be installed on Cygwin, so check for newlib first.
4149 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4150 eval ${pfx}libc_type=newlib
4151 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4152 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4153 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4154 eval ${pfx}libc_type=mingw64
4155 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4156 eval test \$${pfx_no_}cc_type = "gcc" &&
4157 add_${pfx}cppflags -D__printf__=__gnu_printf__
4158 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4159 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4160 eval ${pfx}libc_type=mingw32
4161 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4162 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4163 die "ERROR: MinGW32 runtime version must be >= 3.15."
4164 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4165 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4166 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4167 check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4168 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4169 eval test \$${pfx_no_}cc_type = "gcc" &&
4170 add_${pfx}cppflags -D__printf__=__gnu_printf__
4171 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4172 eval ${pfx}libc_type=msvcrt
4173 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4174 if [ "$pfx" = host_ ]; then
4175 add_host_cppflags -Dsnprintf=_snprintf
4176 else
4177 add_compat strtod.o strtod=avpriv_strtod
4178 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4179 _snprintf=avpriv_snprintf \
4180 vsnprintf=avpriv_vsnprintf
4181 fi
4182 fi
4183 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4184 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4185 # 0x601 by default unless something else is set by the user.
4186 # This can easily lead to us detecting functions only present
4187 # in such new versions and producing binaries requiring windows 7.0.
4188 # Therefore explicitly set the default to XP unless the user has
4189 # set something else on the command line.
4190 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4191 # family. For these cases, configure is free to use any functions
4192 # found in the SDK headers by default. (Alternatively, we could force
4193 # _WIN32_WINNT to 0x0602 in that case.)
4194 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4195 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4196 #ifdef WINAPI_FAMILY
4197 #include <winapifamily.h>
4198 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4199 #error not desktop
4200 #endif
4201 #endif
4202 EOF
4203 if [ "$pfx" = "" ]; then
4204 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4205 fi
4206 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4207 eval ${pfx}libc_type=klibc
4208 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4209 eval ${pfx}libc_type=bionic
4210 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4211 eval ${pfx}libc_type=solaris
4212 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4213 else
4214 eval ${pfx}libc_type=default
4215 add_${pfx}cppflags -D_DEFAULT_SOURCE
4216 fi
4217 }
4218
4219 probe_libc
4220 test -n "$libc_type" && enable libc_$libc_type
4221 probe_libc host_
4222 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4223
4224 # hacks for compiler/libc/os combinations
4225
4226 case $libc_type in
4227 bionic)
4228 add_compat strtod.o strtod=avpriv_strtod
4229 ;;
4230 glibc)
4231 if enabled tms470; then
4232 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4233 add_cppflags -D__USER_LABEL_PREFIX__=
4234 add_cppflags -D__builtin_memset=memset
4235 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4236 add_cflags -pds=48 # incompatible redefinition of macro
4237 elif enabled ccc; then
4238 add_ldflags -Wl,-z,now # calls to libots crash without this
4239 fi
4240 ;;
4241 esac
4242
4243 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4244 add_cppflags '-I\$(SRC_PATH)/compat/float'
4245
4246 esc(){
4247 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4248 }
4249
4250 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4251
4252 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4253
4254 set_default $PATHS_LIST
4255 set_default nm
4256
4257 # we need to build at least one lib type
4258 if ! enabled_any static shared; then
4259 cat <<EOF
4260 At least one library type must be built.
4261 Specify --enable-static to build the static libraries or --enable-shared to
4262 build the shared libraries as well. To only build the shared libraries specify
4263 --disable-static in addition to --enable-shared.
4264 EOF
4265 exit 1
4266 fi
4267
4268 disabled optimizations || check_cflags -fomit-frame-pointer
4269
4270 enable_weak_pic() {
4271 disabled pic && return
4272 enable pic
4273 add_cppflags -DPIC
4274 case "$target_os" in
4275 mingw*|cygwin*)
4276 ;;
4277 *)
4278 add_cflags -fPIC
4279 ;;
4280 esac
4281 add_asflags -fPIC
4282 }
4283
4284 enabled pic && enable_weak_pic
4285
4286 check_cc <<EOF || die "Symbol mangling check failed."
4287 int ff_extern;
4288 EOF
4289 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4290 extern_prefix=${sym%%ff_extern*}
4291
4292 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4293
4294 _restrict=
4295 for restrict_keyword in restrict __restrict__ __restrict; do
4296 check_cc <<EOF && _restrict=$restrict_keyword && break
4297 void foo(char * $restrict_keyword p);
4298 EOF
4299 done
4300
4301 check_cc <<EOF && enable pragma_deprecated
4302 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4303 EOF
4304
4305 check_cc <<EOF && enable attribute_packed
4306 struct { int x; } __attribute__((packed)) x;
4307 EOF
4308
4309 check_cc <<EOF && enable attribute_may_alias
4310 union { int x; } __attribute__((may_alias)) x;
4311 EOF
4312
4313 check_cc <<EOF || die "endian test failed"
4314 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4315 EOF
4316 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4317
4318 check_gas() {
4319 log "check_gas using '$as' as AS"
4320 # :vararg is used on aarch64, arm and ppc altivec
4321 check_as <<EOF || return 1
4322 .macro m n, y:vararg=0
4323 \n: .int \y
4324 .endm
4325 m x
4326 EOF
4327 # .altmacro is only used in arm asm
4328 ! enabled arm || check_as <<EOF || return 1
4329 .altmacro
4330 EOF
4331 enable gnu_as
4332 return 0
4333 }
4334
4335 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4336 nogas=:
4337 enabled_any arm aarch64 && nogas=die
4338 enabled_all ppc altivec && nogas=warn
4339 as_noop=-v
4340
4341 case $as_type in
4342 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4343 gcc) gaspp_as_type=gas ;;
4344 *) gaspp_as_type=$as_type ;;
4345 esac
4346
4347 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4348
4349 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4350 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4351
4352 if ! check_gas ; then
4353 as=${gas:=$as}
4354 check_gas || \
4355 $nogas "GNU assembler not found, install/update gas-preprocessor"
4356 fi
4357
4358 check_as <<EOF && enable as_func
4359 .func test
4360 .endfunc
4361 EOF
4362 fi
4363
4364 check_inline_asm inline_asm_labels '"1:\n"'
4365
4366 if enabled aarch64; then
4367 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'