configure: Simplify license incompatibility check
[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:$PATH
58
59 show_help(){
60 cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
77
78 Standard options:
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
97
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
106
107 Program options:
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
113
114 Component options:
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
134
135 Individual component options:
136 --disable-everything disable all components listed below
137 --disable-encoder=NAME disable encoder NAME
138 --enable-encoder=NAME enable encoder NAME
139 --disable-encoders disable all encoders
140 --disable-decoder=NAME disable decoder NAME
141 --enable-decoder=NAME enable decoder NAME
142 --disable-decoders disable all decoders
143 --disable-hwaccel=NAME disable hwaccel NAME
144 --enable-hwaccel=NAME enable hwaccel NAME
145 --disable-hwaccels disable all hwaccels
146 --disable-muxer=NAME disable muxer NAME
147 --enable-muxer=NAME enable muxer NAME
148 --disable-muxers disable all muxers
149 --disable-demuxer=NAME disable demuxer NAME
150 --enable-demuxer=NAME enable demuxer NAME
151 --disable-demuxers disable all demuxers
152 --enable-parser=NAME enable parser NAME
153 --disable-parser=NAME disable parser NAME
154 --disable-parsers disable all parsers
155 --enable-bsf=NAME enable bitstream filter NAME
156 --disable-bsf=NAME disable bitstream filter NAME
157 --disable-bsfs disable all bitstream filters
158 --enable-protocol=NAME enable protocol NAME
159 --disable-protocol=NAME disable protocol NAME
160 --disable-protocols disable all protocols
161 --enable-indev=NAME enable input device NAME
162 --disable-indev=NAME disable input device NAME
163 --disable-indevs disable input devices
164 --enable-outdev=NAME enable output device NAME
165 --disable-outdev=NAME disable output device NAME
166 --disable-outdevs disable output devices
167 --disable-devices disable all devices
168 --enable-filter=NAME enable filter NAME
169 --disable-filter=NAME disable filter NAME
170 --disable-filters disable all filters
171
172 External library support:
173
174 Using any of the following switches will allow Libav to link to the
175 corresponding external library. All the components depending on that library
176 will become enabled, if all their other dependencies are met and they are not
177 explicitly disabled. E.g. --enable-libwavpack will enable linking to
178 libwavpack and allow the libwavpack encoder to be built, unless it is
179 specifically disabled with --disable-encoder=libwavpack.
180
181 Note that only the system libraries are auto-detected. All the other external
182 libraries must be explicitly enabled.
183
184 Also note that the following help text describes the purpose of the libraries
185 themselves, not all their features will necessarily be usable by Libav.
186
187 --enable-avisynth video frameserver
188 --enable-bzlib bzip2 compression [autodetect]
189 --enable-frei0r video filtering plugins
190 --enable-gnutls crypto
191 --enable-libbs2b Bauer stereophonic-to-binaural DSP
192 --enable-libcdio audio CD input
193 --enable-libdc1394 IEEE 1394/Firewire camera input
194 --enable-libdcadec DCA audio decoding
195 --enable-libfaac AAC audio encoding
196 --enable-libfdk-aac AAC audio encoding/decoding
197 --enable-libfontconfig font configuration and management
198 --enable-libfreetype font rendering
199 --enable-libgsm GSM audio encoding/decoding
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libkvazaar HEVC video encoding
202 --enable-libmp3lame MP3 audio encoding
203 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
204 --enable-libopencore-amrwb AMR-WB audio decoding
205 --enable-libopencv computer vision
206 --enable-libopenh264 H.264 video encoding/decoding
207 --enable-libopenjpeg JPEG 2000 image encoding/decoding
208 --enable-libopus Opus audio encoding/decoding
209 --enable-libpulse Pulseaudio sound server
210 --enable-librtmp RTMP streaming
211 --enable-libschroedinger Dirac video encoding/decoding
212 --enable-libsnappy snappy compression
213 --enable-libspeex Speex audio encoding/decoding
214 --enable-libtheora Theora video encoding/decoding
215 --enable-libtwolame MP2 audio encoding
216 --enable-libvo-aacenc AAC audio encoding
217 --enable-libvo-amrwbenc AMR-WB audio encoding
218 --enable-libvorbis Vorbis audio encoding/decoding
219 --enable-libvpx VP* video encoding/decoding
220 --enable-libwavpack Wavpack audio encoding/decoding
221 --enable-libwebp WebP image encoding/decoding
222 --enable-libx264 H.264 video encoding
223 --enable-libx265 HEVC video encoding
224 --enable-libxavs Chinese AVS video encoding
225 --enable-libxcb X window system protocol communication
226 --enable-libxcb-shm X11 shm communication [auto]
227 --enable-libxcb-xfixes X11 mouse rendering [auto]
228 --enable-libxvid MPEG-4 ASP video encoding
229 --enable-openssl crypto
230 --enable-x11grab X11 grabbing through xlib (legacy, use xcb instead)
231 --enable-zlib compression [autodetect]
232
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
236 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
237 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
238 --enable-libnpp Nvidia CUDA processing
239 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
240 --enable-nvenc Nvidia video encoding
241 --enable-omx OpenMAX IL
242 --enable-omx-rpi OpenMAX IL for Raspberry Pi
243 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
244 --enable-vda Apple Video Decode Acceleration [auto]
245 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
246
247 Toolchain options:
248 --arch=ARCH select architecture [$arch]
249 --cpu=CPU select the minimum required CPU (affects
250 instruction selection, may crash on older CPUs)
251 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
252 --enable-cross-compile assume a cross-compiler is used
253 --sysroot=PATH root of cross-build tree
254 --sysinclude=PATH location of cross-build system headers
255 --target-os=OS compiler targets OS [$target_os]
256 --target-exec=CMD command to run executables on target
257 --target-path=DIR path to view of build directory on target
258 --target-samples=DIR path to samples directory on target
259 --toolchain=NAME set tool defaults according to NAME
260 --nm=NM use nm tool
261 --ar=AR use archive tool AR [$ar_default]
262 --as=AS use assembler AS [$as_default]
263 --cc=CC use C compiler CC [$cc_default]
264 --objcc=OCC use ObjC compiler OCC [$cc_default]
265 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
266 --ld=LD use linker LD
267 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
268 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
269 --host-cc=HOSTCC use host C compiler HOSTCC
270 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
271 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
272 --host-ld=HOSTLD use host linker HOSTLD
273 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
274 --host-libs=HLIBS use libs HLIBS when linking for host
275 --host-os=OS compiler host OS [$target_os]
276 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
277 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
278 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
279 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
280 --extra-libs=ELIBS add ELIBS [$ELIBS]
281 --extra-version=STRING version string suffix []
282 --optflags=OPTFLAGS override optimization-related compiler flags
283 --build-suffix=SUFFIX library name suffix []
284 --enable-pic build position-independent code
285 --enable-thumb compile for Thumb instruction set
286 --enable-lto use link-time optimization
287 --env="ENV=override" override the environment variables
288
289 Advanced options (experts only):
290 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
291 --custom-allocator=NAME use a supported custom allocator
292 --disable-symver disable symbol versioning
293 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
294 --disable-safe-bitstream-reader
295 disable buffer boundary checking in bitreaders
296 (faster, but may crash)
297 --enable-memalign-hack emulate memalign, interferes with memory debuggers
298 --enable-sram allow use of on-chip SRAM
299
300 Optimization options (experts only):
301 --disable-asm disable all assembly optimizations
302 --disable-altivec disable AltiVec optimizations
303 --disable-vsx disable VSX optimizations
304 --disable-power8 disable POWER8 optimizations
305 --disable-amd3dnow disable 3DNow! optimizations
306 --disable-amd3dnowext disable 3DNow! extended optimizations
307 --disable-mmx disable MMX optimizations
308 --disable-mmxext disable MMXEXT optimizations
309 --disable-sse disable SSE optimizations
310 --disable-sse2 disable SSE2 optimizations
311 --disable-sse3 disable SSE3 optimizations
312 --disable-ssse3 disable SSSE3 optimizations
313 --disable-sse4 disable SSE4 optimizations
314 --disable-sse42 disable SSE4.2 optimizations
315 --disable-avx disable AVX optimizations
316 --disable-xop disable XOP optimizations
317 --disable-fma3 disable FMA3 optimizations
318 --disable-fma4 disable FMA4 optimizations
319 --disable-avx2 disable AVX2 optimizations
320 --disable-armv5te disable armv5te optimizations
321 --disable-armv6 disable armv6 optimizations
322 --disable-armv6t2 disable armv6t2 optimizations
323 --disable-vfp disable VFP optimizations
324 --disable-neon disable NEON optimizations
325 --disable-inline-asm disable use of inline assembly
326 --disable-yasm disable use of nasm/yasm assembly
327
328 Developer options (useful when working on Libav itself):
329 --disable-debug disable debugging symbols
330 --enable-debug=LEVEL set the debug level [$debuglevel]
331 --disable-optimizations disable compiler optimizations
332 --enable-extra-warnings enable more compiler warnings
333 --samples=PATH location of test samples for FATE, if not set use
334 \$LIBAV_SAMPLES at make invocation time.
335 --enable-neon-clobber-test check NEON registers for clobbering (should be
336 used only for debugging purposes)
337 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
338 should be used only for debugging purposes)
339 --enable-random randomly enable/disable components
340 --disable-random
341 --enable-random=LIST randomly enable/disable specific components or
342 --disable-random=LIST component groups. LIST is a comma-separated list
343 of NAME[:PROB] entries where NAME is a component
344 (group) and PROB the probability associated with
345 NAME (default 0.5).
346 --random-seed=VALUE seed value for --enable/disable-random
347 --disable-valgrind-backtrace do not print a backtrace under Valgrind
348 (only applies to --disable-optimizations builds)
349
350 NOTE: Object files are built at the place where configure is launched.
351 EOF
352 exit 0
353 }
354
355 quotes='""'
356
357 log(){
358 echo "$@" >> $logfile
359 }
360
361 log_file(){
362 log BEGIN $1
363 i=1
364 while read line; do
365 printf '%5s %s\n' "${i}" "${line}"
366 i=$(($i+1))
367 done < $1 >> $logfile
368 log END $1
369 }
370
371 echolog(){
372 log "$@"
373 echo "$@"
374 }
375
376 warn(){
377 log "WARNING: $*"
378 WARNINGS="${WARNINGS}WARNING: $*\n"
379 }
380
381 die(){
382 echolog "$@"
383 cat <<EOF
384
385 If you think configure made a mistake, make sure you are using the latest
386 version from Git. If the latest version fails, report the problem to the
387 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
388 EOF
389 if disabled logging; then
390 cat <<EOF
391 Rerun configure with logging enabled (do not use --disable-logging), and
392 include the log this produces with your report.
393 EOF
394 else
395 cat <<EOF
396 Include the log file "$logfile" produced by configure as this will help
397 solving the problem.
398 EOF
399 fi
400 exit 1
401 }
402
403 # Avoid locale weirdness, besides we really just want to translate ASCII.
404 toupper(){
405 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
406 }
407
408 tolower(){
409 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
410 }
411
412 c_escape(){
413 echo "$*" | sed 's/["\\]/\\\0/g'
414 }
415
416 sh_quote(){
417 v=$(echo "$1" | sed "s/'/'\\\\''/g")
418 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
419 echo "$v"
420 }
421
422 cleanws(){
423 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
424 }
425
426 filter(){
427 pat=$1
428 shift
429 for v; do
430 eval "case $v in $pat) echo $v ;; esac"
431 done
432 }
433
434 filter_out(){
435 pat=$1
436 shift
437 for v; do
438 eval "case $v in $pat) ;; *) echo $v ;; esac"
439 done
440 }
441
442 map(){
443 m=$1
444 shift
445 for v; do eval $m; done
446 }
447
448 add_suffix(){
449 suffix=$1
450 shift
451 for v; do echo ${v}${suffix}; done
452 }
453
454 set_all(){
455 value=$1
456 shift
457 for var in $*; do
458 eval $var=$value
459 done
460 }
461
462 set_weak(){
463 value=$1
464 shift
465 for var; do
466 eval : \${$var:=$value}
467 done
468 }
469
470 sanitize_var_name(){
471 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
472 }
473
474 set_safe(){
475 var=$1
476 shift
477 eval $(sanitize_var_name "$var")='$*'
478 }
479
480 get_safe(){
481 eval echo \$$(sanitize_var_name "$1")
482 }
483
484 pushvar(){
485 for pvar in $*; do
486 eval level=\${${pvar}_level:=0}
487 eval ${pvar}_${level}="\$$pvar"
488 eval ${pvar}_level=$(($level+1))
489 done
490 }
491
492 popvar(){
493 for pvar in $*; do
494 eval level=\${${pvar}_level:-0}
495 test $level = 0 && continue
496 eval level=$(($level-1))
497 eval $pvar="\${${pvar}_${level}}"
498 eval ${pvar}_level=$level
499 eval unset ${pvar}_${level}
500 done
501 }
502
503 enable(){
504 set_all yes $*
505 }
506
507 disable(){
508 set_all no $*
509 }
510
511 enable_weak(){
512 set_weak yes $*
513 }
514
515 disable_weak(){
516 set_weak no $*
517 }
518
519 enable_safe(){
520 for var; do
521 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
522 done
523 }
524
525 disable_safe(){
526 for var; do
527 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 done
529 }
530
531 do_enable_deep(){
532 for var; do
533 enabled $var && continue
534 eval sel="\$${var}_select"
535 eval sgs="\$${var}_suggest"
536 pushvar var sgs
537 enable_deep $sel
538 popvar sgs
539 enable_deep_weak $sgs
540 popvar var
541 done
542 }
543
544 enable_deep(){
545 do_enable_deep $*
546 enable $*
547 }
548
549 enable_deep_weak(){
550 for var; do
551 disabled $var && continue
552 pushvar var
553 do_enable_deep $var
554 popvar var
555 enable_weak $var
556 done
557 }
558
559 enabled(){
560 test "${1#!}" = "$1" && op== || op=!=
561 eval test "x\$${1#!}" $op "xyes"
562 }
563
564 disabled(){
565 test "${1#!}" = "$1" && op== || op=!=
566 eval test "x\$${1#!}" $op "xno"
567 }
568
569 enabled_all(){
570 for opt; do
571 enabled $opt || return 1
572 done
573 }
574
575 disabled_all(){
576 for opt; do
577 disabled $opt || return 1
578 done
579 }
580
581 enabled_any(){
582 for opt; do
583 enabled $opt && return 0
584 done
585 }
586
587 disabled_any(){
588 for opt; do
589 disabled $opt && return 0
590 done
591 return 1
592 }
593
594 set_default(){
595 for opt; do
596 eval : \${$opt:=\$${opt}_default}
597 done
598 }
599
600 is_in(){
601 value=$1
602 shift
603 for var in $*; do
604 [ $var = $value ] && return 0
605 done
606 return 1
607 }
608
609 do_check_deps(){
610 for cfg; do
611 cfg="${cfg#!}"
612 enabled ${cfg}_checking && die "Circular dependency for $cfg."
613 disabled ${cfg}_checking && continue
614 enable ${cfg}_checking
615 append allopts $cfg
616
617 eval dep_all="\$${cfg}_deps"
618 eval dep_any="\$${cfg}_deps_any"
619 eval dep_sel="\$${cfg}_select"
620 eval dep_sgs="\$${cfg}_suggest"
621 eval dep_ifa="\$${cfg}_if"
622 eval dep_ifn="\$${cfg}_if_any"
623
624 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
625 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
626 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627
628 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
629 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
630 enabled_all $dep_all || disable $cfg
631 enabled_any $dep_any || disable $cfg
632 disabled_any $dep_sel && disable $cfg
633
634 if enabled $cfg; then
635 enable_deep $dep_sel
636 enable_deep_weak $dep_sgs
637 fi
638
639 disable ${cfg}_checking
640 done
641 }
642
643 check_deps(){
644 unset allopts
645
646 do_check_deps "$@"
647
648 for cfg in $allopts; do
649 enabled $cfg || continue
650 eval dep_extralibs="\$${cfg}_extralibs"
651 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
652 done
653 }
654
655 print_config(){
656 pfx=$1
657 files=$2
658 shift 2
659 map 'eval echo "$v \${$v:-no}"' "$@" |
660 awk "BEGIN { split(\"$files\", files) }
661 {
662 c = \"$pfx\" toupper(\$1);
663 v = \$2;
664 sub(/yes/, 1, v);
665 sub(/no/, 0, v);
666 for (f in files) {
667 file = files[f];
668 if (file ~ /\\.h\$/) {
669 printf(\"#define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.asm\$/) {
671 printf(\"%%define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.mak\$/) {
673 n = -v ? \"\" : \"!\";
674 printf(\"%s%s=yes\\n\", n, c) >>file;
675 }
676 }
677 }"
678 }
679
680 print_enabled(){
681 suf=$1
682 shift
683 for v; do
684 enabled $v && printf "%s\n" ${v%$suf}
685 done
686 }
687
688 append(){
689 var=$1
690 shift
691 eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695 var=$1
696 shift
697 eval "$var=\"$* \$$var\""
698 }
699
700 unique(){
701 var=$1
702 uniq_list=""
703 for tok in $(eval echo \$$var); do
704 uniq_list="$(filter_out $tok $uniq_list) $tok"
705 done
706 eval "$var=\"${uniq_list}\""
707 }
708
709 add_cppflags(){
710 append CPPFLAGS "$@"
711 }
712
713 add_cflags(){
714 append CFLAGS $($cflags_filter "$@")
715 }
716
717 add_asflags(){
718 append ASFLAGS $($asflags_filter "$@")
719 }
720
721 add_objcflags(){
722 append OBJCFLAGS $($objcflags_filter "$@")
723 }
724
725 add_ldflags(){
726 append LDFLAGS $($ldflags_filter "$@")
727 }
728
729 add_ldexeflags(){
730 append LDEXEFLAGS $($ldflags_filter "$@")
731 }
732
733 add_stripflags(){
734 append STRIPFLAGS "$@"
735 }
736
737 add_extralibs(){
738 prepend extralibs $($ldflags_filter "$@")
739 }
740
741 add_host_cppflags(){
742 append host_cppflags "$@"
743 }
744
745 add_host_cflags(){
746 append host_cflags $($host_cflags_filter "$@")
747 }
748
749 add_host_ldflags(){
750 append host_ldflags $($host_ldflags_filter "$@")
751 }
752
753 add_compat(){
754 append compat_objs $1
755 shift
756 map 'add_cppflags -D$v' "$@"
757 }
758
759 check_cmd(){
760 log "$@"
761 "$@" >> $logfile 2>&1
762 }
763
764 cc_o(){
765 eval printf '%s\\n' $CC_O
766 }
767
768 cc_e(){
769 eval printf '%s\\n' $CC_E
770 }
771
772 check_cc(){
773 log check_cc "$@"
774 cat > $TMPC
775 log_file $TMPC
776 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
777 }
778
779 check_objcc(){
780 log check_objcc "$@"
781 cat > $TMPC
782 log_file $TMPC
783 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
784 }
785
786 check_cpp(){
787 log check_cpp "$@"
788 cat > $TMPC
789 log_file $TMPC
790 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
791 }
792
793 as_o(){
794 eval printf '%s\\n' $AS_O
795 }
796
797 check_as(){
798 log check_as "$@"
799 cat > $TMPS
800 log_file $TMPS
801 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
802 }
803
804 check_inline_asm(){
805 log check_inline_asm "$@"
806 name="$1"
807 code="$2"
808 shift 2
809 disable $name
810 check_cc "$@" <<EOF && enable $name
811 void foo(void){ __asm__ volatile($code); }
812 EOF
813 }
814
815 check_insn(){
816 log check_insn "$@"
817 check_inline_asm ${1}_inline "\"$2\""
818 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
819 }
820
821 check_yasm(){
822 log check_yasm "$@"
823 echo "$1" > $TMPS
824 log_file $TMPS
825 shift 1
826 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
827 }
828
829 ld_o(){
830 eval printf '%s\\n' $LD_O
831 }
832
833 check_ld(){
834 log check_ld "$@"
835 flags=$(filter_out '-l*' "$@")
836 libs=$(filter '-l*' "$@")
837 check_cc $($cflags_filter $flags) || return
838 flags=$($ldflags_filter $flags)
839 libs=$($ldflags_filter $libs)
840 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
841 }
842
843 print_include(){
844 hdr=$1
845 test "${hdr%.h}" = "${hdr}" &&
846 echo "#include $hdr" ||
847 echo "#include <$hdr>"
848 }
849
850 check_code(){
851 log check_code "$@"
852 check=$1
853 headers=$2
854 code=$3
855 shift 3
856 {
857 for hdr in $headers; do
858 print_include $hdr
859 done
860 echo "int main(void) { $code; return 0; }"
861 } | check_$check "$@"
862 }
863
864 check_cppflags(){
865 log check_cppflags "$@"
866 check_cc "$@" <<EOF && append CPPFLAGS "$@"
867 int x;
868 EOF
869 }
870
871 test_cflags(){
872 log test_cflags "$@"
873 set -- $($cflags_filter "$@")
874 check_cc "$@" <<EOF
875 int x;
876 EOF
877 }
878
879 check_cflags(){
880 log check_cflags "$@"
881 test_cflags "$@" && add_cflags "$@"
882 }
883
884 test_objcflags(){
885 log test_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_objcc "$@" <<EOF
888 int x;
889 EOF
890 }
891
892 check_objcflags(){
893 log check_cflags "$@"
894 test_objcflags "$@" && add_objcflags "$@"
895 }
896
897 test_ldflags(){
898 log test_ldflags "$@"
899 check_ld "$@" <<EOF
900 int main(void){ return 0; }
901 EOF
902 }
903
904 check_ldflags(){
905 log check_ldflags "$@"
906 test_ldflags "$@" && add_ldflags "$@"
907 }
908
909 test_stripflags(){
910 log test_stripflags "$@"
911 # call check_cc to get a fresh TMPO
912 check_cc <<EOF
913 int main(void) { return 0; }
914 EOF
915 check_cmd $strip $STRIPFLAGS "$@" $TMPO
916 }
917
918 check_stripflags(){
919 log check_stripflags "$@"
920 test_stripflags "$@" && add_stripflags "$@"
921 }
922
923 check_header(){
924 log check_header "$@"
925 header=$1
926 shift
927 disable_safe $header
928 check_cpp "$@" <<EOF && enable_safe $header
929 #include <$header>
930 int x;
931 EOF
932 }
933
934 check_func(){
935 log check_func "$@"
936 func=$1
937 shift
938 disable $func
939 check_ld "$@" <<EOF && enable $func
940 extern int $func();
941 int main(void){ $func(); }
942 EOF
943 }
944
945 check_mathfunc(){
946 log check_mathfunc "$@"
947 func=$1
948 narg=$2
949 shift 2
950 test $narg = 2 && args="f, g" || args="f"
951 disable $func
952 check_ld "$@" <<EOF && enable $func
953 #include <math.h>
954 float foo(float f, float g) { return $func($args); }
955 int main(void){ return 0; }
956 EOF
957 }
958
959 check_func_headers(){
960 log check_func_headers "$@"
961 headers=$1
962 funcs=$2
963 shift 2
964 {
965 for hdr in $headers; do
966 print_include $hdr
967 done
968 for func in $funcs; do
969 echo "long check_$func(void) { return (long) $func; }"
970 done
971 echo "int main(void) { return 0; }"
972 } | check_ld "$@" && enable $funcs && enable_safe $headers
973 }
974
975 check_cpp_condition(){
976 log check_cpp_condition "$@"
977 header=$1
978 condition=$2
979 shift 2
980 check_cpp "$@" <<EOF
981 #include <$header>
982 #if !($condition)
983 #error "unsatisfied condition: $condition"
984 #endif
985 EOF
986 }
987
988 check_lib(){
989 log check_lib "$@"
990 header="$1"
991 func="$2"
992 shift 2
993 check_header $header && check_func $func "$@" && add_extralibs "$@"
994 }
995
996 check_lib2(){
997 log check_lib2 "$@"
998 headers="$1"
999 funcs="$2"
1000 shift 2
1001 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1002 }
1003
1004 check_pkg_config(){
1005 log check_pkg_config "$@"
1006 pkg="$1"
1007 headers="$2"
1008 funcs="$3"
1009 shift 3
1010 check_cmd $pkg_config --exists --print-errors $pkg || return
1011 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1012 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1013 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1014 set_safe "${pkg}_cflags" $pkg_cflags &&
1015 set_safe "${pkg}_libs" $pkg_libs
1016 }
1017
1018 check_exec(){
1019 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1020 }
1021
1022 check_exec_crash(){
1023 code=$(cat)
1024
1025 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1026 # are safe but may not be available everywhere. Thus we use
1027 # raise(SIGTERM) instead. The check is run in a subshell so we
1028 # can redirect the "Terminated" message from the shell. SIGBUS
1029 # is not defined by standard C so it is used conditionally.
1030
1031 (check_exec "$@") >> $logfile 2>&1 <<EOF
1032 #include <signal.h>
1033 static void sighandler(int sig){
1034 raise(SIGTERM);
1035 }
1036 int foo(void){
1037 $code
1038 }
1039 int (*func_ptr)(void) = foo;
1040 int main(void){
1041 signal(SIGILL, sighandler);
1042 signal(SIGFPE, sighandler);
1043 signal(SIGSEGV, sighandler);
1044 #ifdef SIGBUS
1045 signal(SIGBUS, sighandler);
1046 #endif
1047 return func_ptr();
1048 }
1049 EOF
1050 }
1051
1052 check_type(){
1053 log check_type "$@"
1054 headers=$1
1055 type=$2
1056 shift 2
1057 disable_safe "$type"
1058 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1059 }
1060
1061 check_struct(){
1062 log check_struct "$@"
1063 headers=$1
1064 struct=$2
1065 member=$3
1066 shift 3
1067 disable_safe "${struct}_${member}"
1068 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1069 enable_safe "${struct}_${member}"
1070 }
1071
1072 check_builtin(){
1073 log check_builtin "$@"
1074 name=$1
1075 headers=$2
1076 builtin=$3
1077 shift 3
1078 disable "$name"
1079 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1080 }
1081
1082 check_compile_assert(){
1083 log check_compile_assert "$@"
1084 name=$1
1085 headers=$2
1086 condition=$3
1087 shift 3
1088 disable "$name"
1089 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1090 }
1091
1092 require(){
1093 name="$1"
1094 header="$2"
1095 func="$3"
1096 shift 3
1097 check_lib $header $func "$@" || die "ERROR: $name not found"
1098 }
1099
1100 require2(){
1101 name="$1"
1102 headers="$2"
1103 func="$3"
1104 shift 3
1105 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1106 }
1107
1108 require_pkg_config(){
1109 pkg="$1"
1110 check_pkg_config "$@" || die "ERROR: $pkg not found"
1111 add_cflags $(get_safe "${pkg}_cflags")
1112 add_extralibs $(get_safe "${pkg}_libs")
1113 }
1114
1115 hostcc_e(){
1116 eval printf '%s\\n' $HOSTCC_E
1117 }
1118
1119 hostcc_o(){
1120 eval printf '%s\\n' $HOSTCC_O
1121 }
1122
1123 check_host_cc(){
1124 log check_host_cc "$@"
1125 cat > $TMPC
1126 log_file $TMPC
1127 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1128 }
1129
1130 check_host_cpp(){
1131 log check_host_cpp "$@"
1132 cat > $TMPC
1133 log_file $TMPC
1134 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1135 }
1136
1137 check_host_cppflags(){
1138 log check_host_cppflags "$@"
1139 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1140 int x;
1141 EOF
1142 }
1143
1144 check_host_cflags(){
1145 log check_host_cflags "$@"
1146 set -- $($host_cflags_filter "$@")
1147 check_host_cc "$@" <<EOF && append host_cflags "$@"
1148 int x;
1149 EOF
1150 }
1151
1152 check_host_cpp_condition(){
1153 log check_host_cpp_condition "$@"
1154 header=$1
1155 condition=$2
1156 shift 2
1157 check_host_cpp "$@" <<EOF
1158 #include <$header>
1159 #if !($condition)
1160 #error "unsatisfied condition: $condition"
1161 #endif
1162 EOF
1163 }
1164
1165 apply(){
1166 file=$1
1167 shift
1168 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1169 }
1170
1171 cp_if_changed(){
1172 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1173 mkdir -p "$(dirname $2)"
1174 $cp_f "$1" "$2"
1175 }
1176
1177 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1178 # system-dependent things.
1179
1180 AVCODEC_COMPONENTS="
1181 bsfs
1182 decoders
1183 encoders
1184 hwaccels
1185 parsers
1186 "
1187
1188 AVDEVICE_COMPONENTS="
1189 indevs
1190 outdevs
1191 "
1192 AVFILTER_COMPONENTS="
1193 filters
1194 "
1195 AVFORMAT_COMPONENTS="
1196 demuxers
1197 muxers
1198 protocols
1199 "
1200
1201 AVRESAMPLE_COMPONENTS=""
1202 AVUTIL_COMPONENTS=""
1203
1204 COMPONENT_LIST="
1205 $AVCODEC_COMPONENTS
1206 $AVDEVICE_COMPONENTS
1207 $AVFILTER_COMPONENTS
1208 $AVFORMAT_COMPONENTS
1209 $AVRESAMPLE_COMPONENTS
1210 $AVUTIL_COMPONENTS
1211 "
1212
1213 EXAMPLE_LIST="
1214 avcodec_example
1215 filter_audio_example
1216 metadata_example
1217 output_example
1218 qsvdec_example
1219 transcode_aac_example
1220 "
1221
1222 HWACCEL_LIBRARY_NONFREE_LIST="
1223 cuda
1224 libnpp
1225 "
1226 HWACCEL_LIBRARY_LIST="
1227 $HWACCEL_LIBRARY_NONFREE_LIST
1228 d3d11va
1229 dxva2
1230 libmfx
1231 mmal
1232 nvenc
1233 omx
1234 vaapi
1235 vda
1236 vdpau
1237 "
1238
1239 EXTERNAL_LIBRARY_GPL_LIST="
1240 libcdio
1241 libx264
1242 libx265
1243 libxavs
1244 libxvid
1245 x11grab
1246 "
1247
1248 EXTERNAL_LIBRARY_NONFREE_LIST="
1249 libfaac
1250 libfdk_aac
1251 openssl
1252 "
1253
1254 EXTERNAL_LIBRARY_VERSION3_LIST="
1255 libopencore_amrnb
1256 libopencore_amrwb
1257 libvo_aacenc
1258 libvo_amrwbenc
1259 "
1260
1261 EXTERNAL_LIBRARY_LIST="
1262 $EXTERNAL_LIBRARY_GPL_LIST
1263 $EXTERNAL_LIBRARY_NONFREE_LIST
1264 $EXTERNAL_LIBRARY_VERSION3_LIST
1265 avisynth
1266 bzlib
1267 frei0r
1268 gnutls
1269 libbs2b
1270 libdc1394
1271 libdcadec
1272 libfontconfig
1273 libfreetype
1274 libgsm
1275 libilbc
1276 libkvazaar
1277 libmp3lame
1278 libopencv
1279 libopenh264
1280 libopenjpeg
1281 libopus
1282 libpulse
1283 librtmp
1284 libschroedinger
1285 libsnappy
1286 libspeex
1287 libtheora
1288 libtwolame
1289 libvorbis
1290 libvpx
1291 libwavpack
1292 libwebp
1293 libxcb
1294 libxcb_shm
1295 libxcb_xfixes
1296 zlib
1297 "
1298
1299 FEATURE_LIST="
1300 gray
1301 hardcoded_tables
1302 omx_rpi
1303 runtime_cpudetect
1304 safe_bitstream_reader
1305 shared
1306 small
1307 sram
1308 static
1309 swscale_alpha
1310 "
1311
1312 LIBRARY_LIST="
1313 avcodec
1314 avdevice
1315 avfilter
1316 avformat
1317 avresample
1318 avutil
1319 swscale
1320 "
1321
1322 LICENSE_LIST="
1323 gpl
1324 nonfree
1325 version3
1326 "
1327
1328 PROGRAM_LIST="
1329 avconv
1330 avplay
1331 avprobe
1332 "
1333
1334 SUBSYSTEM_LIST="
1335 dct
1336 doc
1337 error_resilience
1338 faan
1339 fft
1340 lsp
1341 lzo
1342 mdct
1343 network
1344 rdft
1345 "
1346
1347 CONFIG_LIST="
1348 $COMPONENT_LIST
1349 $EXAMPLE_LIST
1350 $EXTERNAL_LIBRARY_LIST
1351 $HWACCEL_LIBRARY_LIST
1352 $FEATURE_LIST
1353 $LICENSE_LIST
1354 $LIBRARY_LIST
1355 $PROGRAM_LIST
1356 $SUBSYSTEM_LIST
1357 memalign_hack
1358 neon_clobber_test
1359 pic
1360 pod2man
1361 texi2html
1362 thumb
1363 valgrind_backtrace
1364 xmm_clobber_test
1365 "
1366
1367 THREADS_LIST="
1368 pthreads
1369 w32threads
1370 "
1371
1372 ATOMICS_LIST="
1373 atomics_gcc
1374 atomics_suncc
1375 atomics_win32
1376 "
1377
1378 ARCH_LIST="
1379 aarch64
1380 alpha
1381 arm
1382 avr32
1383 avr32_ap
1384 avr32_uc
1385 bfin
1386 ia64
1387 m68k
1388 mips
1389 mips64
1390 parisc
1391 ppc
1392 ppc64
1393 s390
1394 sh4
1395 sparc
1396 sparc64
1397 tilegx
1398 tilepro
1399 tomi
1400 x86
1401 x86_32
1402 x86_64
1403 "
1404
1405 ARCH_EXT_LIST_ARM="
1406 armv5te
1407 armv6
1408 armv6t2
1409 armv8
1410 neon
1411 vfp
1412 vfpv3
1413 "
1414
1415 ARCH_EXT_LIST_X86_SIMD="
1416 amd3dnow
1417 amd3dnowext
1418 avx
1419 avx2
1420 fma3
1421 fma4
1422 mmx
1423 mmxext
1424 sse
1425 sse2
1426 sse3
1427 sse4
1428 sse42
1429 ssse3
1430 xop
1431 "
1432
1433 ARCH_EXT_LIST_PPC="
1434 altivec
1435 dcbzl
1436 ldbrx
1437 power8
1438 ppc4xx
1439 vsx
1440 "
1441
1442 ARCH_EXT_LIST_X86="
1443 $ARCH_EXT_LIST_X86_SIMD
1444 cpunop
1445 i686
1446 "
1447
1448 ARCH_EXT_LIST_MIPS="
1449 loongson
1450 mips32r1
1451 mips64r1
1452 mips32r2
1453 mips64r2
1454 mips32r6
1455 mips64r6
1456 "
1457
1458 ARCH_EXT_LIST="
1459 $ARCH_EXT_LIST_ARM
1460 $ARCH_EXT_LIST_MIPS
1461 $ARCH_EXT_LIST_PPC
1462 $ARCH_EXT_LIST_X86
1463 vis
1464 "
1465
1466 ARCH_FEATURES="
1467 aligned_stack
1468 fast_64bit
1469 fast_clz
1470 fast_cmov
1471 local_aligned_8
1472 local_aligned_16
1473 simd_align_16
1474 "
1475
1476 BUILTIN_LIST="
1477 atomic_cas_ptr
1478 machine_rw_barrier
1479 MemoryBarrier
1480 mm_empty
1481 rdtsc
1482 sem_timedwait
1483 sync_val_compare_and_swap
1484 "
1485 HAVE_LIST_CMDLINE="
1486 inline_asm
1487 symver
1488 yasm
1489 "
1490
1491 HAVE_LIST_PUB="
1492 bigendian
1493 fast_unaligned
1494 "
1495
1496 HEADERS_LIST="
1497 AVFoundation_AVFoundation_h
1498 alsa_asoundlib_h
1499 altivec_h
1500 arpa_inet_h
1501 cdio_paranoia_h
1502 cdio_paranoia_paranoia_h
1503 dispatch_dispatch_h
1504 dev_bktr_ioctl_bt848_h
1505 dev_bktr_ioctl_meteor_h
1506 dev_ic_bt8xx_h
1507 dev_video_bktr_ioctl_bt848_h
1508 dev_video_meteor_ioctl_meteor_h
1509 direct_h
1510 dlfcn_h
1511 d3d11_h
1512 dxva_h
1513 gsm_h
1514 io_h
1515 mach_mach_time_h
1516 machine_ioctl_bt848_h
1517 machine_ioctl_meteor_h
1518 malloc_h
1519 poll_h
1520 sndio_h
1521 soundcard_h
1522 sys_mman_h
1523 sys_param_h
1524 sys_resource_h
1525 sys_select_h
1526 sys_soundcard_h
1527 sys_time_h
1528 sys_un_h
1529 sys_videoio_h
1530 unistd_h
1531 valgrind_valgrind_h
1532 windows_h
1533 winsock2_h
1534 "
1535
1536 INTRINSICS_LIST="
1537 intrinsics_neon
1538 "
1539
1540 MATH_FUNCS="
1541 atanf
1542 atan2f
1543 cbrtf
1544 cosf
1545 exp2
1546 exp2f
1547 expf
1548 isinf
1549 isnan
1550 ldexpf
1551 llrint
1552 llrintf
1553 log2
1554 log2f
1555 log10f
1556 lrint
1557 lrintf
1558 powf
1559 rint
1560 round
1561 roundf
1562 sinf
1563 trunc
1564 truncf
1565 "
1566
1567 SYSTEM_FUNCS="
1568 aligned_malloc
1569 clock_gettime
1570 closesocket
1571 CommandLineToArgvW
1572 CoTaskMemFree
1573 CryptGenRandom
1574 dlopen
1575 fcntl
1576 flt_lim
1577 fork
1578 getaddrinfo
1579 gethrtime
1580 getopt
1581 GetProcessAffinityMask
1582 GetProcessMemoryInfo
1583 GetProcessTimes
1584 getrusage
1585 GetSystemTimeAsFileTime
1586 gettimeofday
1587 gmtime_r
1588 inet_aton
1589 isatty
1590 jack_port_get_latency_range
1591 LoadLibrary
1592 localtime_r
1593 mach_absolute_time
1594 MapViewOfFile
1595 memalign
1596 mkstemp
1597 mmap
1598 mprotect
1599 nanosleep
1600 posix_memalign
1601 sched_getaffinity
1602 SetConsoleTextAttribute
1603 setmode
1604 setrlimit
1605 Sleep
1606 strerror_r
1607 sysconf
1608 sysctl
1609 usleep
1610 VirtualAlloc
1611 "
1612
1613 TOOLCHAIN_FEATURES="
1614 as_dn_directive
1615 as_fpu_directive
1616 as_func
1617 as_object_arch
1618 asm_mod_q
1619 attribute_may_alias
1620 attribute_packed
1621 ebp_available
1622 ebx_available
1623 gnu_as
1624 ibm_asm
1625 inline_asm_labels
1626 pragma_deprecated
1627 symver_asm_label
1628 symver_gnu_asm
1629 vfp_args
1630 xform_asm
1631 xmm_clobbers
1632 "
1633
1634 TYPES_LIST="
1635 CONDITION_VARIABLE_Ptr
1636 socklen_t
1637 struct_addrinfo
1638 struct_group_source_req
1639 struct_ip_mreq_source
1640 struct_ipv6_mreq
1641 struct_pollfd
1642 struct_rusage_ru_maxrss
1643 struct_sockaddr_in6
1644 struct_sockaddr_sa_len
1645 struct_sockaddr_storage
1646 struct_v4l2_frmivalenum_discrete
1647 "
1648
1649 HAVE_LIST="
1650 $ARCH_EXT_LIST
1651 $(add_suffix _external $ARCH_EXT_LIST)
1652 $(add_suffix _inline $ARCH_EXT_LIST)
1653 $ARCH_FEATURES
1654 $ATOMICS_LIST
1655 $BUILTIN_LIST
1656 $HAVE_LIST_CMDLINE
1657 $HAVE_LIST_PUB
1658 $HEADERS_LIST
1659 $INTRINSICS_LIST
1660 $MATH_FUNCS
1661 $SYSTEM_FUNCS
1662 $THREADS_LIST
1663 $TOOLCHAIN_FEATURES
1664 $TYPES_LIST
1665 atomics_native
1666 dos_paths
1667 dxva2_lib
1668 libc_msvcrt
1669 libdc1394_1
1670 libdc1394_2
1671 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1672 sdl
1673 section_data_rel_ro
1674 threads
1675 vaapi_drm
1676 vaapi_x11
1677 vdpau_x11
1678 xlib
1679 "
1680
1681 # options emitted with CONFIG_ prefix but not available on the command line
1682 CONFIG_EXTRA="
1683 aandcttables
1684 ac3dsp
1685 audio_frame_queue
1686 audiodsp
1687 blockdsp
1688 bswapdsp
1689 cabac
1690 dirac_parse
1691 dvprofile
1692 faandct
1693 faanidct
1694 fdctdsp
1695 flacdsp
1696 fmtconvert
1697 g722dsp
1698 gcrypt
1699 gmp
1700 golomb
1701 gplv3
1702 h263dsp
1703 h264chroma
1704 h264dsp
1705 h264parse
1706 h264pred
1707 h264qpel
1708 hpeldsp
1709 huffman
1710 huffyuvdsp
1711 huffyuvencdsp
1712 idctdsp
1713 iirfilter
1714 imdct15
1715 intrax8
1716 iso_media
1717 ividsp
1718 jpegtables
1719 libx262
1720 lgplv3
1721 lpc
1722 lzf
1723 me_cmp
1724 mpeg_er
1725 mpegaudio
1726 mpegaudiodsp
1727 mpegvideo
1728 mpegvideoenc
1729 mss34dsp
1730 pixblockdsp
1731 qpeldsp
1732 qsv
1733 qsvdec
1734 qsvenc
1735 rangecoder
1736 riffdec
1737 riffenc
1738 rtpdec
1739 rtpenc_chain
1740 rv34dsp
1741 sinewin
1742 snappy
1743 srtp
1744 startcode
1745 texturedsp
1746 texturedspenc
1747 tpeldsp
1748 vaapi_encode
1749 vc1dsp
1750 videodsp
1751 vp3dsp
1752 vp56dsp
1753 vp8dsp
1754 wma_freqs
1755 wmv2dsp
1756 "
1757
1758 CMDLINE_SELECT="
1759 $ARCH_EXT_LIST
1760 $CONFIG_LIST
1761 $HAVE_LIST_CMDLINE
1762 $THREADS_LIST
1763 asm
1764 cross_compile
1765 debug
1766 extra_warnings
1767 logging
1768 lto
1769 optimizations
1770 rpath
1771 "
1772
1773 PATHS_LIST="
1774 bindir
1775 datadir
1776 docdir
1777 incdir
1778 libdir
1779 mandir
1780 prefix
1781 shlibdir
1782 "
1783
1784 CMDLINE_SET="
1785 $PATHS_LIST
1786 ar
1787 arch
1788 as
1789 build_suffix
1790 cc
1791 objcc
1792 cpu
1793 cross_prefix
1794 custom_allocator
1795 dep_cc
1796 env
1797 extra_version
1798 host_cc
1799 host_cflags
1800 host_ld
1801 host_ldflags
1802 host_libs
1803 host_os
1804 ld
1805 logfile
1806 malloc_prefix
1807 nm
1808 optflags
1809 pkg_config
1810 pkg_config_flags
1811 random_seed
1812 samples
1813 sysinclude
1814 sysroot
1815 target_exec
1816 target_os
1817 target_path
1818 target_samples
1819 toolchain
1820 "
1821
1822 CMDLINE_APPEND="
1823 extra_cflags
1824 extra_objcflags
1825 host_cppflags
1826 "
1827
1828 # code dependency declarations
1829
1830 # architecture extensions
1831
1832 armv5te_deps="arm"
1833 armv6_deps="arm"
1834 armv6t2_deps="arm"
1835 armv8_deps="aarch64"
1836 neon_deps_any="aarch64 arm"
1837 intrinsics_neon_deps="neon"
1838 vfp_deps_any="aarch64 arm"
1839 vfpv3_deps="vfp"
1840
1841 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1842
1843 altivec_deps="ppc"
1844 ppc4xx_deps="ppc"
1845 vsx_deps="altivec"
1846 power8_deps="vsx"
1847
1848 cpunop_deps="i686"
1849 x86_64_select="i686"
1850 x86_64_suggest="fast_cmov"
1851
1852 amd3dnow_deps="mmx"
1853 amd3dnowext_deps="amd3dnow"
1854 i686_deps="x86"
1855 mmx_deps="x86"
1856 mmxext_deps="mmx"
1857 sse_deps="mmxext"
1858 sse2_deps="sse"
1859 sse3_deps="sse2"
1860 ssse3_deps="sse3"
1861 sse4_deps="ssse3"
1862 sse42_deps="sse4"
1863 avx_deps="sse42"
1864 xop_deps="avx"
1865 fma3_deps="avx"
1866 fma4_deps="avx"
1867 avx2_deps="avx"
1868
1869 mmx_external_deps="yasm"
1870 mmx_inline_deps="inline_asm"
1871 mmx_suggest="mmx_external mmx_inline"
1872
1873 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1874 eval dep=\$${ext}_deps
1875 eval ${ext}_external_deps='"${dep}_external"'
1876 eval ${ext}_inline_deps='"${dep}_inline"'
1877 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1878 done
1879
1880 aligned_stack_if_any="aarch64 ppc x86"
1881 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1882 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1883 fast_unaligned_if_any="aarch64 ppc x86"
1884 simd_align_16_if_any="altivec neon sse"
1885
1886 # system capabilities
1887 symver_if_any="symver_asm_label symver_gnu_asm"
1888 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1889
1890 # threading support
1891 atomics_gcc_if="sync_val_compare_and_swap"
1892 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1893 atomics_win32_if="MemoryBarrier"
1894 atomics_native_if_any="$ATOMICS_LIST"
1895 w32threads_deps="atomics_native"
1896 threads_if_any="$THREADS_LIST"
1897
1898 # subsystems
1899 dct_select="rdft"
1900 dirac_parse_select="golomb"
1901 error_resilience_select="me_cmp"
1902 faandct_deps="faan fdctdsp"
1903 faanidct_deps="faan idctdsp"
1904 h264dsp_select="startcode"
1905 intrax8_select="blockdsp idctdsp"
1906 mdct_select="fft"
1907 rdft_select="fft"
1908 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1909 mpeg_er_select="error_resilience"
1910 mpegaudio_select="mpegaudiodsp"
1911 mpegaudiodsp_select="dct"
1912 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1913 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1914 vc1dsp_select="h264chroma qpeldsp startcode"
1915
1916 # decoders / encoders
1917 aac_decoder_select="imdct15 mdct sinewin"
1918 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1919 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1920 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1921 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1922 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1923 adpcm_g722_decoder_select="g722dsp"
1924 adpcm_g722_encoder_select="g722dsp"
1925 aic_decoder_select="golomb idctdsp"
1926 alac_encoder_select="lpc"
1927 als_decoder_select="bswapdsp"
1928 amrnb_decoder_select="lsp"
1929 amrwb_decoder_select="lsp"
1930 amv_decoder_select="sp5x_decoder"
1931 ape_decoder_select="bswapdsp"
1932 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1933 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1934 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1935 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1936 atrac1_decoder_select="mdct sinewin"
1937 atrac3_decoder_select="mdct"
1938 atrac3p_decoder_select="mdct sinewin"
1939 bink_decoder_select="blockdsp hpeldsp"
1940 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1941 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1942 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1943 cllc_decoder_select="bswapdsp"
1944 comfortnoise_encoder_select="lpc"
1945 cook_decoder_select="audiodsp mdct sinewin"
1946 cscd_decoder_select="lzo"
1947 cscd_decoder_suggest="zlib"
1948 dca_decoder_select="fmtconvert mdct"
1949 dds_decoder_select="texturedsp"
1950 dnxhd_decoder_select="blockdsp idctdsp"
1951 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1952 dvvideo_decoder_select="dvprofile idctdsp"
1953 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1954 dxa_decoder_deps="zlib"
1955 dxv_decoder_select="lzf texturedsp"
1956 eac3_decoder_select="ac3_decoder"
1957 eac3_encoder_select="ac3_encoder"
1958 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1959 eatgq_decoder_select="aandcttables idctdsp"
1960 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1961 exr_decoder_deps="zlib"
1962 ffv1_decoder_select="golomb rangecoder"
1963 ffv1_encoder_select="rangecoder"
1964 ffvhuff_decoder_select="huffyuv_decoder"
1965 ffvhuff_encoder_select="huffyuv_encoder"
1966 fic_decoder_select="golomb"
1967 flac_decoder_select="flacdsp golomb"
1968 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1969 flashsv_decoder_deps="zlib"
1970 flashsv_encoder_deps="zlib"
1971 flashsv2_decoder_deps="zlib"
1972 flv_decoder_select="h263_decoder"
1973 flv_encoder_select="h263_encoder"
1974 fourxm_decoder_select="blockdsp bswapdsp"
1975 fraps_decoder_select="bswapdsp huffman"
1976 g2m_decoder_deps="zlib"
1977 g2m_decoder_select="blockdsp idctdsp jpegtables"
1978 h261_decoder_select="mpeg_er mpegvideo"
1979 h261_encoder_select="aandcttables mpegvideoenc"
1980 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1981 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1982 h263i_decoder_select="h263_decoder"
1983 h263p_encoder_select="h263_encoder"
1984 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1985 h264_decoder_suggest="error_resilience"
1986 hap_decoder_select="snappy texturedsp"
1987 hap_encoder_deps="libsnappy"
1988 hap_encoder_select="texturedspenc"
1989 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1990 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1991 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1992 iac_decoder_select="imc_decoder"
1993 imc_decoder_select="bswapdsp fft mdct sinewin"
1994 indeo3_decoder_select="hpeldsp"
1995 indeo4_decoder_select="ividsp"
1996 indeo5_decoder_select="ividsp"
1997 interplay_video_decoder_select="hpeldsp"
1998 jpegls_decoder_select="golomb mjpeg_decoder"
1999 jpegls_encoder_select="golomb"
2000 jv_decoder_select="blockdsp"
2001 lagarith_decoder_select="huffyuvdsp"
2002 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2003 loco_decoder_select="golomb"
2004 magicyuv_decoder_select="huffyuvdsp"
2005 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2006 metasound_decoder_select="lsp mdct sinewin"
2007 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2008 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2009 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2010 mjpegb_decoder_select="mjpeg_decoder"
2011 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2012 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2013 mlp_decoder_select="mlp_parser"
2014 motionpixels_decoder_select="bswapdsp"
2015 mp1_decoder_select="mpegaudio"
2016 mp1float_decoder_select="mpegaudio"
2017 mp2_decoder_select="mpegaudio"
2018 mp2float_decoder_select="mpegaudio"
2019 mp3_decoder_select="mpegaudio"
2020 mp3adu_decoder_select="mpegaudio"
2021 mp3adufloat_decoder_select="mpegaudio"
2022 mp3float_decoder_select="mpegaudio"
2023 mp3on4_decoder_select="mpegaudio"
2024 mp3on4float_decoder_select="mpegaudio"
2025 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2026 mpc8_decoder_select="mpegaudiodsp"
2027 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2028 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2029 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2030 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2031 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2032 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2033 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2034 mpeg4_encoder_select="h263_encoder"
2035 msa1_decoder_select="mss34dsp"
2036 msmpeg4v1_decoder_select="h263_decoder"
2037 msmpeg4v2_decoder_select="h263_decoder"
2038 msmpeg4v2_encoder_select="h263_encoder"
2039 msmpeg4v3_decoder_select="h263_decoder"
2040 msmpeg4v3_encoder_select="h263_encoder"
2041 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2042 mts2_decoder_select="mss34dsp"
2043 mxpeg_decoder_select="mjpeg_decoder"
2044 nellymoser_decoder_select="mdct sinewin"
2045 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2046 nuv_decoder_select="idctdsp lzo"
2047 on2avc_decoder_select="mdct"
2048 opus_decoder_deps="avresample"
2049 opus_decoder_select="imdct15"
2050 png_decoder_deps="zlib"
2051 png_encoder_deps="zlib"
2052 png_encoder_select="huffyuvencdsp"
2053 prores_decoder_select="idctdsp"
2054 prores_encoder_select="fdctdsp"
2055 qcelp_decoder_select="lsp"
2056 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2057 ra_144_encoder_select="audio_frame_queue lpc"
2058 ralf_decoder_select="golomb"
2059 rscc_decoder_deps="zlib"
2060 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2061 rv10_encoder_select="h263_encoder"
2062 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2063 rv20_encoder_select="h263_encoder"
2064 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2065 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2066 screenpresso_decoder_deps="zlib"
2067 shorten_decoder_select="golomb"
2068 sipr_decoder_select="lsp"
2069 sp5x_decoder_select="mjpeg_decoder"
2070 svq1_decoder_select="hpeldsp"
2071 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2072 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2073 svq3_decoder_suggest="zlib"
2074 tak_decoder_select="audiodsp"
2075 tdsc_decoder_deps="zlib"
2076 tdsc_decoder_select="mjpeg_decoder"
2077 theora_decoder_select="vp3_decoder"
2078 thp_decoder_select="mjpeg_decoder"
2079 tiff_decoder_suggest="zlib"
2080 tiff_encoder_suggest="zlib"
2081 truehd_decoder_select="mlp_decoder"
2082 truemotion2_decoder_select="bswapdsp"
2083 truespeech_decoder_select="bswapdsp"
2084 tscc_decoder_deps="zlib"
2085 txd_decoder_select="texturedsp"
2086 twinvq_decoder_select="mdct lsp sinewin"
2087 utvideo_decoder_select="bswapdsp"
2088 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2089 vble_decoder_select="huffyuvdsp"
2090 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2091 vc1image_decoder_select="vc1_decoder"
2092 vorbis_decoder_select="mdct"
2093 vorbis_encoder_select="mdct"
2094 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2095 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2096 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2097 vp6a_decoder_select="vp6_decoder"
2098 vp6f_decoder_select="vp6_decoder"
2099 vp7_decoder_select="h264pred videodsp vp8dsp"
2100 vp8_decoder_select="h264pred videodsp vp8dsp"
2101 vp9_decoder_select="videodsp"
2102 webp_decoder_select="vp8_decoder"
2103 wmapro_decoder_select="mdct sinewin wma_freqs"
2104 wmav1_decoder_select="mdct sinewin wma_freqs"
2105 wmav1_encoder_select="mdct sinewin wma_freqs"
2106 wmav2_decoder_select="mdct sinewin wma_freqs"
2107 wmav2_encoder_select="mdct sinewin wma_freqs"
2108 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2109 wmv1_decoder_select="h263_decoder"
2110 wmv1_encoder_select="h263_encoder"
2111 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2112 wmv2_encoder_select="h263_encoder wmv2dsp"
2113 wmv3_decoder_select="vc1_decoder"
2114 wmv3image_decoder_select="wmv3_decoder"
2115 zerocodec_decoder_deps="zlib"
2116 zlib_decoder_deps="zlib"
2117 zlib_encoder_deps="zlib"
2118 zmbv_decoder_deps="zlib"
2119 zmbv_encoder_deps="zlib"
2120
2121 # hardware accelerators
2122 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2123 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2124 vaapi_deps="va_va_h"
2125 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2126 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2127 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2128
2129 h263_vaapi_hwaccel_deps="vaapi"
2130 h263_vaapi_hwaccel_select="h263_decoder"
2131 h264_d3d11va_hwaccel_deps="d3d11va"
2132 h264_d3d11va_hwaccel_select="h264_decoder"
2133 h264_dxva2_hwaccel_deps="dxva2"
2134 h264_dxva2_hwaccel_select="h264_decoder"
2135 h264_mmal_decoder_deps="mmal"
2136 h264_mmal_decoder_select="mmal"
2137 h264_mmal_hwaccel_deps="mmal"
2138 h264_omx_encoder_deps="omx"
2139 h264_qsv_hwaccel_deps="libmfx"
2140 h264_vaapi_hwaccel_deps="vaapi"
2141 h264_vaapi_hwaccel_select="h264_decoder"
2142 h264_vda_hwaccel_deps="vda"
2143 h264_vda_hwaccel_select="h264_decoder"
2144 h264_vda_old_hwaccel_deps="vda"
2145 h264_vda_old_hwaccel_select="h264_decoder"
2146 h264_vdpau_hwaccel_deps="vdpau"
2147 h264_vdpau_hwaccel_select="h264_decoder"
2148 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2149 hevc_d3d11va_hwaccel_select="hevc_decoder"
2150 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2151 hevc_dxva2_hwaccel_select="hevc_decoder"
2152 hevc_qsv_hwaccel_deps="libmfx"
2153 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2154 hevc_vdpau_hwaccel_select="hevc_decoder"
2155 mpeg1_vdpau_hwaccel_deps="vdpau"
2156 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2157 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2158 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2159 mpeg2_dxva2_hwaccel_deps="dxva2"
2160 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2161 mpeg2_mmal_decoder_deps="mmal"
2162 mpeg2_mmal_decoder_select="mmal"
2163 mpeg2_mmal_hwaccel_deps="mmal"
2164 mpeg2_qsv_hwaccel_deps="libmfx"
2165 mpeg2_vaapi_hwaccel_deps="vaapi"
2166 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2167 mpeg2_vdpau_hwaccel_deps="vdpau"
2168 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2169 mpeg4_omx_encoder_deps="omx"
2170 mpeg4_vaapi_hwaccel_deps="vaapi"
2171 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2172 mpeg4_vdpau_hwaccel_deps="vdpau"
2173 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2174 vc1_d3d11va_hwaccel_deps="d3d11va"
2175 vc1_d3d11va_hwaccel_select="vc1_decoder"
2176 vc1_dxva2_hwaccel_deps="dxva2"
2177 vc1_dxva2_hwaccel_select="vc1_decoder"
2178 vc1_mmal_decoder_deps="mmal"
2179 vc1_mmal_decoder_select="mmal"
2180 vc1_mmal_hwaccel_deps="mmal"
2181 vc1_vaapi_hwaccel_deps="vaapi"
2182 vc1_vaapi_hwaccel_select="vc1_decoder"
2183 vc1_vdpau_hwaccel_deps="vdpau"
2184 vc1_vdpau_hwaccel_select="vc1_decoder"
2185 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2186 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2187 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2188 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2189
2190 # hardware-accelerated codecs
2191 nvenc_deps_any="dlopen LoadLibrary"
2192 nvenc_extralibs='$ldl'
2193 omx_deps="dlopen pthreads"
2194 omx_extralibs='$ldl'
2195 qsvdec_select="qsv"
2196 qsvenc_select="qsv"
2197 vaapi_encode_deps="vaapi"
2198
2199 hwupload_cuda_filter_deps="cuda"
2200 scale_npp_filter_deps="cuda libnpp"
2201
2202 h264_nvenc_encoder_deps="nvenc"
2203 h264_qsv_decoder_deps="libmfx"
2204 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2205 h264_qsv_encoder_deps="libmfx"
2206 h264_qsv_encoder_select="qsvenc"
2207 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2208 h264_vaapi_encoder_select="vaapi_encode golomb"
2209
2210 hevc_nvenc_encoder_deps="nvenc"
2211 hevc_qsv_decoder_deps="libmfx"
2212 hevc_qsv_encoder_deps="libmfx"
2213 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2214 hevc_qsv_encoder_select="qsvenc"
2215 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2216 hevc_vaapi_encoder_select="vaapi_encode golomb"
2217 mpeg2_qsv_decoder_deps="libmfx"
2218 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2219 mpeg2_qsv_encoder_deps="libmfx"
2220 mpeg2_qsv_encoder_select="qsvenc"
2221
2222 nvenc_h264_encoder_deps="nvenc"
2223 nvenc_hevc_encoder_deps="nvenc"
2224
2225 # parsers
2226 h264_parser_select="golomb h264dsp h264parse"
2227 hevc_parser_select="golomb"
2228 mpegvideo_parser_select="mpegvideo"
2229 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2230 vc1_parser_select="vc1dsp"
2231
2232 # bitstream_filters
2233 mjpeg2jpeg_bsf_select="jpegtables"
2234
2235 # external libraries
2236 libdcadec_decoder_deps="libdcadec"
2237 libfaac_encoder_deps="libfaac"
2238 libfaac_encoder_select="audio_frame_queue"
2239 libfdk_aac_decoder_deps="libfdk_aac"
2240 libfdk_aac_encoder_deps="libfdk_aac"
2241 libfdk_aac_encoder_select="audio_frame_queue"
2242 libgsm_decoder_deps="libgsm"
2243 libgsm_encoder_deps="libgsm"
2244 libgsm_ms_decoder_deps="libgsm"
2245 libgsm_ms_encoder_deps="libgsm"
2246 libilbc_decoder_deps="libilbc"
2247 libilbc_encoder_deps="libilbc"
2248 libkvazaar_encoder_deps="libkvazaar"
2249 libmp3lame_encoder_deps="libmp3lame"
2250 libmp3lame_encoder_select="audio_frame_queue"
2251 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2252 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2253 libopencore_amrnb_encoder_select="audio_frame_queue"
2254 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2255 libopenh264_decoder_deps="libopenh264"
2256 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2257 libopenh264_encoder_deps="libopenh264"
2258 libopenjpeg_decoder_deps="libopenjpeg"
2259 libopenjpeg_encoder_deps="libopenjpeg"
2260 libopus_decoder_deps="libopus"
2261 libopus_encoder_deps="libopus"
2262 libopus_encoder_select="audio_frame_queue"
2263 libschroedinger_decoder_deps="libschroedinger"
2264 libschroedinger_encoder_deps="libschroedinger"
2265 libspeex_decoder_deps="libspeex"
2266 libspeex_encoder_deps="libspeex"
2267 libspeex_encoder_select="audio_frame_queue"
2268 libtheora_encoder_deps="libtheora"
2269 libtwolame_encoder_deps="libtwolame"
2270 libvo_aacenc_encoder_deps="libvo_aacenc"
2271 libvo_aacenc_encoder_select="audio_frame_queue"
2272 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2273 libvorbis_encoder_deps="libvorbis"
2274 libvorbis_encoder_select="audio_frame_queue"
2275 libvpx_vp8_decoder_deps="libvpx"
2276 libvpx_vp8_encoder_deps="libvpx"
2277 libvpx_vp9_decoder_deps="libvpx"
2278 libvpx_vp9_encoder_deps="libvpx"
2279 libwavpack_encoder_deps="libwavpack"
2280 libwebp_encoder_deps="libwebp"
2281 libx262_encoder_deps="libx262"
2282 libx264_encoder_deps="libx264"
2283 libx265_encoder_deps="libx265"
2284 libxavs_encoder_deps="libxavs"
2285 libxvid_encoder_deps="libxvid"
2286
2287 # demuxers / muxers
2288 ac3_demuxer_select="ac3_parser"
2289 asf_demuxer_select="riffdec"
2290 asf_muxer_select="riffenc"
2291 asf_stream_muxer_select="asf_muxer"
2292 avi_demuxer_select="iso_media riffdec"
2293 avi_muxer_select="riffenc"
2294 avisynth_demuxer_deps="avisynth"
2295 avisynth_demuxer_select="riffdec"
2296 caf_demuxer_select="iso_media riffdec"
2297 dash_muxer_select="mp4_muxer"
2298 dirac_demuxer_select="dirac_parser"
2299 dv_demuxer_select="dvprofile"
2300 dv_muxer_select="dvprofile"
2301 dxa_demuxer_select="riffdec"
2302 eac3_demuxer_select="ac3_parser"
2303 f4v_muxer_select="mov_muxer"
2304 flac_demuxer_select="flac_parser"
2305 hds_muxer_select="flv_muxer"
2306 hls_muxer_select="mpegts_muxer"
2307 ipod_muxer_select="mov_muxer"
2308 ismv_muxer_select="mov_muxer"
2309 matroska_audio_muxer_select="matroska_muxer"
2310 matroska_demuxer_select="iso_media riffdec"
2311 matroska_demuxer_suggest="bzlib lzo zlib"
2312 matroska_muxer_select="iso_media riffenc"
2313 mmf_muxer_select="riffenc"
2314 mov_demuxer_select="iso_media riffdec"
2315 mov_demuxer_suggest="zlib"
2316 mov_muxer_select="iso_media riffenc rtpenc_chain"
2317 mp3_demuxer_select="mpegaudio_parser"
2318 mp4_muxer_select="mov_muxer"
2319 mpegts_demuxer_select="iso_media"
2320 mpegts_muxer_select="adts_muxer latm_muxer"
2321 mpegtsraw_demuxer_select="mpegts_demuxer"
2322 mxf_d10_muxer_select="mxf_muxer"
2323 nut_muxer_select="riffenc"
2324 nuv_demuxer_select="riffdec"
2325 oga_muxer_select="ogg_muxer"
2326 ogg_demuxer_select="dirac_parse"
2327 opus_muxer_select="ogg_muxer"
2328 psp_muxer_select="mov_muxer"
2329 rtp_demuxer_select="sdp_demuxer"
2330 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2331 rtsp_demuxer_select="http_protocol rtpdec"
2332 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2333 sap_demuxer_select="sdp_demuxer"
2334 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2335 sdp_demuxer_select="rtpdec"
2336 smoothstreaming_muxer_select="ismv_muxer"
2337 spdif_muxer_select="aac_parser"
2338 spx_muxer_select="ogg_muxer"
2339 swf_demuxer_suggest="zlib"
2340 tak_demuxer_select="tak_parser"
2341 tg2_muxer_select="mov_muxer"
2342 tgp_muxer_select="mov_muxer"
2343 w64_demuxer_select="wav_demuxer"
2344 wav_demuxer_select="riffdec"
2345 wav_muxer_select="riffenc"
2346 webm_muxer_select="iso_media riffenc"
2347 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2348 wtv_demuxer_select="mpegts_demuxer riffdec"
2349 xmv_demuxer_select="riffdec"
2350 xwma_demuxer_select="riffdec"
2351
2352 # indevs / outdevs
2353 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2354 alsa_outdev_deps="alsa_asoundlib_h"
2355 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2356 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2357 dv1394_indev_deps="dv1394"
2358 dv1394_indev_select="dv_demuxer"
2359 fbdev_indev_deps="linux_fb_h"
2360 jack_indev_deps="jack_jack_h"
2361 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2362 libcdio_indev_deps="libcdio"
2363 libdc1394_indev_deps="libdc1394"
2364 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2365 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2366 pulse_indev_deps="libpulse"
2367 sndio_indev_deps="sndio_h"
2368 sndio_outdev_deps="sndio_h"
2369 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2370 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2371 vfwcap_indev_extralibs="-lavicap32"
2372 x11grab_indev_deps="x11grab"
2373 x11grab_xcb_indev_deps="libxcb"
2374
2375 # protocols
2376 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2377 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2378 ffrtmpcrypt_protocol_select="tcp_protocol"
2379 ffrtmphttp_protocol_deps="!librtmp_protocol"
2380 ffrtmphttp_protocol_select="http_protocol"
2381 gopher_protocol_select="network"
2382 http_protocol_select="tcp_protocol"
2383 httpproxy_protocol_select="tcp_protocol"
2384 https_protocol_select="tls_protocol"
2385 icecast_protocol_select="http_protocol"
2386 librtmp_protocol_deps="librtmp"
2387 librtmpe_protocol_deps="librtmp"
2388 librtmps_protocol_deps="librtmp"
2389 librtmpt_protocol_deps="librtmp"
2390 librtmpte_protocol_deps="librtmp"
2391 mmsh_protocol_select="http_protocol"
2392 mmst_protocol_select="network"
2393 rtmp_protocol_deps="!librtmp_protocol"
2394 rtmp_protocol_select="tcp_protocol"
2395 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2396 rtmps_protocol_deps="!librtmp_protocol"
2397 rtmps_protocol_select="tls_protocol"
2398 rtmpt_protocol_select="ffrtmphttp_protocol"
2399 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2400 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2401 rtp_protocol_select="udp_protocol"
2402 sctp_protocol_deps="struct_sctp_event_subscribe"
2403 sctp_protocol_select="network"
2404 srtp_protocol_select="rtp_protocol srtp"
2405 tcp_protocol_select="network"
2406 tls_gnutls_protocol_deps="gnutls"
2407 tls_gnutls_protocol_select="tcp_protocol"
2408 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2409 tls_openssl_protocol_select="tcp_protocol"
2410 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2411 udp_protocol_select="network"
2412 unix_protocol_deps="sys_un_h"
2413 unix_protocol_select="network"
2414
2415 # filters
2416 blackframe_filter_deps="gpl"
2417 boxblur_filter_deps="gpl"
2418 bs2b_filter_deps="libbs2b"
2419 cropdetect_filter_deps="gpl"
2420 deinterlace_qsv_filter_deps="libmfx"
2421 delogo_filter_deps="gpl"
2422 drawtext_filter_deps="libfreetype"
2423 frei0r_filter_deps="frei0r dlopen"
2424 frei0r_filter_extralibs='$ldl'
2425 frei0r_src_filter_deps="frei0r dlopen"
2426 frei0r_src_filter_extralibs='$ldl'
2427 hqdn3d_filter_deps="gpl"
2428 interlace_filter_deps="gpl"
2429 ocv_filter_deps="libopencv"
2430 resample_filter_deps="avresample"
2431 scale_filter_deps="swscale"
2432 scale_qsv_filter_deps="libmfx"
2433 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2434
2435 # examples
2436 avcodec_example_deps="avcodec avutil"
2437 filter_audio_example_deps="avfilter avutil"
2438 metadata_example_deps="avformat avutil"
2439 output_example_deps="avcodec avformat avutil swscale"
2440 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2441 transcode_aac_example_deps="avcodec avformat avresample"
2442
2443 # libraries, in linking order
2444 avcodec_deps="avutil"
2445 avdevice_deps="avformat avcodec avutil"
2446 avfilter_deps="avutil"
2447 avformat_deps="avcodec avutil"
2448 avresample_deps="avutil"
2449 swscale_deps="avutil"
2450
2451 # programs
2452 avconv_deps="avcodec avfilter avformat avresample swscale"
2453 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2454 fps_filter null_filter resample_filter scale_filter
2455 trim_filter"
2456 avplay_deps="avcodec avfilter avformat avresample sdl"
2457 avplay_libs='$sdl_libs'
2458 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2459 avprobe_deps="avcodec avformat"
2460
2461 # documentation
2462 pod2man_deps="doc"
2463 texi2html_deps="doc"
2464
2465 # default parameters
2466
2467 logfile="config.log"
2468
2469 # installation paths
2470 prefix_default="/usr/local"
2471 bindir_default='${prefix}/bin'
2472 datadir_default='${prefix}/share/avconv'
2473 docdir_default='${prefix}/share/doc/libav'
2474 incdir_default='${prefix}/include'
2475 libdir_default='${prefix}/lib'
2476 mandir_default='${prefix}/share/man'
2477 shlibdir_default="$libdir_default"
2478
2479 # toolchain
2480 ar_default="ar"
2481 cc_default="gcc"
2482 host_cc_default="gcc"
2483 cp_f="cp -f"
2484 ln_s="ln -s -f"
2485 nm_default="nm -g"
2486 objformat="elf"
2487 pkg_config_default=pkg-config
2488 ranlib="ranlib"
2489 strip="strip"
2490 version_script='--version-script'
2491 yasmexe="yasm"
2492
2493 # machine
2494 arch_default=$(uname -m)
2495 cpu="generic"
2496 intrinsics="none"
2497
2498 # OS
2499 target_os_default=$(tolower $(uname -s))
2500 host_os=$target_os_default
2501
2502 # configurable options
2503 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2504
2505 enable asm
2506 enable debug
2507 enable doc
2508 enable faan faandct faanidct
2509 enable optimizations
2510 enable safe_bitstream_reader
2511 enable static
2512 enable swscale_alpha
2513 enable valgrind_backtrace
2514
2515 # By default, enable only those hwaccels that have no external dependencies.
2516 enable d3d11va dxva2 vda vdpau
2517
2518 # build settings
2519 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2520 LIBPREF="lib"
2521 LIBSUF=".a"
2522 FULLNAME='$(NAME)$(BUILDSUF)'
2523 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2524 SLIBPREF="lib"
2525 SLIBSUF=".so"
2526 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2527 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2528 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2529 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2530 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2531 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2532 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2533
2534 asflags_filter=echo
2535 cflags_filter=echo
2536 ldflags_filter=echo
2537
2538 AS_C='-c'
2539 AS_O='-o $@'
2540 CC_C='-c'
2541 CC_E='-E -o $@'
2542 CC_O='-o $@'
2543 OBJCC_C='-c'
2544 OBJCC_E='-E -o $@'
2545 OBJCC_O='-o $@'
2546 LD_O='-o $@'
2547 LD_LIB='-l%'
2548 LD_PATH='-L'
2549 HOSTCC_C='-c'
2550 HOSTCC_E='-E -o $@'
2551 HOSTCC_O='-o $@'
2552 HOSTLD_O='-o $@'
2553
2554 host_libs='-lm'
2555 host_cflags_filter=echo
2556 host_ldflags_filter=echo
2557
2558 target_path='$(CURDIR)'
2559
2560 # since the object filename is not given with the -MM flag, the compiler
2561 # is only able to print the basename, and we must add the path ourselves
2562 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2563 DEPFLAGS='-MM'
2564
2565 # find source path
2566 if test -f configure; then
2567 source_path=.
2568 else
2569 source_path=$(cd $(dirname "$0"); pwd)
2570 echo "$source_path" | grep -q '[[:blank:]]' &&
2571 die "Out of tree builds are impossible with whitespace in source path."
2572 test -e "$source_path/config.h" &&
2573 die "Out of tree builds are impossible with config.h in source dir."
2574 fi
2575
2576 for v in "$@"; do
2577 r=${v#*=}
2578 l=${v%"$r"}
2579 r=$(sh_quote "$r")
2580 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2581 done
2582
2583 find_things(){
2584 thing=$1
2585 pattern=$2
2586 file=$source_path/$3
2587 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2588 }
2589
2590 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2591 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2592 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2593 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2594 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2595 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2596 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2597 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2598 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2599
2600 find_things_extern(){
2601 thing=$1
2602 pattern=$2
2603 file=$source_path/$3
2604 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2605 }
2606
2607 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2608 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2609
2610 ALL_COMPONENTS="
2611 $BSF_LIST
2612 $DECODER_LIST
2613 $DEMUXER_LIST
2614 $ENCODER_LIST
2615 $FILTER_LIST
2616 $HWACCEL_LIST
2617 $INDEV_LIST
2618 $MUXER_LIST
2619 $OUTDEV_LIST
2620 $PARSER_LIST
2621 $PROTOCOL_LIST
2622 "
2623
2624 for n in $COMPONENT_LIST; do
2625 v=$(toupper ${n%s})_LIST
2626 eval enable \$$v
2627 eval ${n}_if_any="\$$v"
2628 done
2629
2630 enable $ARCH_EXT_LIST
2631
2632 die_unknown(){
2633 echo "Unknown option \"$1\"."
2634 echo "See $0 --help for available options."
2635 exit 1
2636 }
2637
2638 print_3_columns() {
2639 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2640 }
2641
2642 show_list() {
2643 suffix=_$1
2644 shift
2645 echo $* | sed s/$suffix//g | print_3_columns
2646 exit 0
2647 }
2648
2649 rand_list(){
2650 IFS=', '
2651 set -- $*
2652 unset IFS
2653 for thing; do
2654 comp=${thing%:*}
2655 prob=${thing#$comp}
2656 prob=${prob#:}
2657 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2658 echo "prob ${prob:-0.5}"
2659 printf '%s\n' $comp
2660 done
2661 }
2662
2663 do_random(){
2664 action=$1
2665 shift
2666 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2667 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2668 }
2669
2670 for opt do
2671 optval="${opt#*=}"
2672 case "$opt" in
2673 --extra-ldflags=*)
2674 add_ldflags $optval
2675 ;;
2676 --extra-ldexeflags=*)
2677 add_ldexeflags $optval
2678 ;;
2679 --extra-libs=*)
2680 add_extralibs $optval
2681 ;;
2682 --disable-devices)
2683 disable $INDEV_LIST $OUTDEV_LIST
2684 ;;
2685 --enable-debug=*)
2686 debuglevel="$optval"
2687 ;;
2688 --disable-programs)
2689 disable $PROGRAM_LIST
2690 ;;
2691 --disable-everything)
2692 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2693 ;;
2694 --disable-all)
2695 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2696 disable $LIBRARY_LIST $PROGRAM_LIST doc
2697 ;;
2698 --enable-random|--disable-random)
2699 action=${opt%%-random}
2700 do_random ${action#--} $COMPONENT_LIST
2701 ;;
2702 --enable-random=*|--disable-random=*)
2703 action=${opt%%-random=*}
2704 do_random ${action#--} $optval
2705 ;;
2706 --enable-*=*|--disable-*=*)
2707 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2708 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2709 eval list=\$$(toupper $thing)_LIST
2710 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2711 $action $(filter "$name" $list)
2712 ;;
2713 --enable-avserver|--disable-avserver*)
2714 warn "avserver has been removed, the ${opt} option is only"\
2715 "provided for compatibility and will be removed in the future"
2716 ;;
2717 --enable-?*|--disable-?*)
2718 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2719 if is_in $option $COMPONENT_LIST; then
2720 test $action = disable && action=unset
2721 eval $action \$$(toupper ${option%s})_LIST
2722 elif is_in $option $CMDLINE_SELECT; then
2723 $action $option
2724 else
2725 die_unknown $opt
2726 fi
2727 ;;
2728 --list-*)
2729 NAME="${opt#--list-}"
2730 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2731 NAME=${NAME%s}
2732 eval show_list $NAME \$$(toupper $NAME)_LIST
2733 ;;
2734 --help|-h) show_help
2735 ;;
2736 *)
2737 optname="${opt%%=*}"
2738 optname="${optname#--}"
2739 optname=$(echo "$optname" | sed 's/-/_/g')
2740 if is_in $optname $CMDLINE_SET; then
2741 eval $optname='$optval'
2742 elif is_in $optname $CMDLINE_APPEND; then
2743 append $optname "$optval"
2744 else
2745 die_unknown $opt
2746 fi
2747 ;;
2748 esac
2749 done
2750
2751 for e in $env; do
2752 eval "export $e"
2753 done
2754
2755 disabled logging && logfile=/dev/null
2756
2757 # Disable all the library-specific components if the library itself
2758 # is disabled, see AVCODEC_LIST and following _LIST variables.
2759
2760 disable_components(){
2761 disabled ${1} && disable $(
2762 eval components="\$$(toupper ${1})_COMPONENTS"
2763 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2764 )
2765 }
2766
2767 map 'disable_components $v' $LIBRARY_LIST
2768
2769 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2770 set >> $logfile
2771
2772 case "$toolchain" in
2773 *-asan)
2774 cc_default="${toolchain%-asan}"
2775 add_cflags -fsanitize=address
2776 add_ldflags -fsanitize=address
2777 ;;
2778 *-msan)
2779 cc_default="${toolchain%-msan}"
2780 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2781 add_ldflags -fsanitize=memory
2782 ;;
2783 *-tsan)
2784 cc_default="${toolchain%-tsan}"
2785 add_cflags -fsanitize=thread -pie
2786 add_ldflags -fsanitize=thread -pie
2787 case "$toolchain" in
2788 gcc-tsan)
2789 add_cflags -fPIC
2790 add_ldflags -fPIC
2791 ;;
2792 esac
2793 ;;
2794 *-usan)
2795 cc_default="${toolchain%-usan}"
2796 add_cflags -fsanitize=undefined
2797 add_ldflags -fsanitize=undefined
2798 case "$toolchain" in
2799 clang-usan)
2800 add_cflags -O1
2801 ;;
2802 esac
2803 ;;
2804 valgrind-*)
2805 target_exec_default="valgrind"
2806 case "$toolchain" in
2807 valgrind-massif)
2808 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2809 ;;
2810 valgrind-memcheck)
2811 target_exec_args="--track-origins=yes --leak-check=full"
2812 ;;
2813 esac
2814 ;;
2815 msvc)
2816 # Check whether the current MSVC version needs the C99 converter.
2817 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2818 # support enough of C99 to build libav. Default to the new
2819 # behaviour if the regexp was unable to match anything, since this
2820 # successfully parses the version number of existing supported
2821 # versions that require the converter (MSVC 2010 and 2012).
2822 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2823 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2824 cc_default="cl"
2825 else
2826 cc_default="c99wrap cl"
2827 fi
2828 ld_default="$source_path/compat/windows/mslink"
2829 nm_default="dumpbin -symbols"
2830 ar_default="lib"
2831 case "$arch" in
2832 arm*)
2833 as_default="armasm"
2834 ;;
2835 esac
2836 target_os_default="win32"
2837 # Use a relative path for TMPDIR. This makes sure all the
2838 # ffconf temp files are written with a relative path, avoiding
2839 # issues with msys/win32 path conversion for MSVC parameters
2840 # such as -Fo<file> or -out:<file>.
2841 TMPDIR=.
2842 ;;
2843 icl)
2844 cc_default="icl"
2845 ld_default="xilink"
2846 nm_default="dumpbin -symbols"
2847 ar_default="xilib"
2848 target_os_default="win32"
2849 TMPDIR=.
2850 ;;
2851 gcov)
2852 add_cflags -fprofile-arcs -ftest-coverage
2853 add_ldflags -fprofile-arcs -ftest-coverage
2854 ;;
2855 llvm-cov)
2856 add_cflags -fprofile-arcs -ftest-coverage
2857 add_ldflags --coverage
2858 ;;
2859 hardened)
2860 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2861 add_cflags -fno-strict-overflow -fstack-protector-all
2862 add_ldflags -Wl,-z,relro -Wl,-z,now
2863 ;;
2864 ?*)
2865 die "Unknown toolchain $toolchain"
2866 ;;
2867 esac
2868
2869 test -n "$cross_prefix" && enable cross_compile
2870
2871 if enabled cross_compile; then
2872 test -n "$arch" && test -n "$target_os" ||
2873 die "Must specify target arch and OS when cross-compiling"
2874 fi
2875
2876 ar_default="${cross_prefix}${ar_default}"
2877 cc_default="${cross_prefix}${cc_default}"
2878 occ_default="${cross_prefix}${occ_default}"
2879 nm_default="${cross_prefix}${nm_default}"
2880 pkg_config_default="${cross_prefix}${pkg_config_default}"
2881 ranlib="${cross_prefix}${ranlib}"
2882 strip="${cross_prefix}${strip}"
2883
2884 sysinclude_default="${sysroot}/usr/include"
2885
2886 set_default arch cc pkg_config sysinclude target_exec target_os
2887 enabled cross_compile || host_cc_default=$cc
2888 set_default host_cc
2889
2890 if ! $pkg_config --version >/dev/null 2>&1; then
2891 warn "$pkg_config not found, library detection may fail."
2892 pkg_config=false
2893 fi
2894
2895 exesuf() {
2896 case $1 in
2897 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2898 esac
2899 }
2900
2901 EXESUF=$(exesuf $target_os)
2902 HOSTEXESUF=$(exesuf $host_os)
2903
2904 # set temporary file name
2905 : ${TMPDIR:=$TEMPDIR}
2906 : ${TMPDIR:=$TMP}
2907 : ${TMPDIR:=/tmp}
2908
2909 if ! check_cmd mktemp -u XXXXXX; then
2910 # simple replacement for missing mktemp
2911 # NOT SAFE FOR GENERAL USE
2912 mktemp(){
2913 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2914 }
2915 fi
2916
2917 tmpfile(){
2918 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2919 (set -C; exec > $tmp) 2>/dev/null ||
2920 die "Unable to create temporary file in $TMPDIR."
2921 append TMPFILES $tmp
2922 eval $1=$tmp
2923 }
2924
2925 trap 'rm -f -- $TMPFILES' EXIT
2926
2927 tmpfile TMPASM .asm
2928 tmpfile TMPC .c
2929 tmpfile TMPE $EXESUF
2930 tmpfile TMPH .h
2931 tmpfile TMPO .o
2932 tmpfile TMPS .S
2933 tmpfile TMPSH .sh
2934 tmpfile TMPV .ver
2935
2936 unset -f mktemp
2937
2938 chmod +x $TMPE
2939
2940 # make sure we can execute files in $TMPDIR
2941 cat > $TMPSH 2>> $logfile <<EOF
2942 #! /bin/sh
2943 EOF
2944 chmod +x $TMPSH >> $logfile 2>&1
2945 if ! $TMPSH >> $logfile 2>&1; then
2946 cat <<EOF
2947 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2948 variable to another directory and make sure that it is not mounted noexec.
2949 EOF
2950 die "Sanity test failed."
2951 fi
2952
2953 armasm_flags(){
2954 for flag; do
2955 case $flag in
2956 # Filter out MSVC cl.exe options from cflags that shouldn't
2957 # be passed to gas-preprocessor
2958 -M[TD]*) ;;
2959 *) echo $flag ;;
2960 esac
2961 done
2962 }
2963
2964 ccc_flags(){
2965 for flag; do
2966 case $flag in
2967 -std=c99) echo -c99 ;;
2968 -mcpu=*) echo -arch ${flag#*=} ;;
2969 -mieee) echo -ieee ;;
2970 -O*|-fast) echo $flag ;;
2971 -fno-math-errno) echo -assume nomath_errno ;;
2972 -g) echo -g3 ;;
2973 -Wall) echo -msg_enable level2 ;;
2974 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2975 -Wl,*) echo $flag ;;
2976 -f*|-W*) ;;
2977 *) echo $flag ;;
2978 esac
2979 done
2980 }
2981
2982 cparser_flags(){
2983 for flag; do
2984 case $flag in
2985 -Wno-switch) echo -Wno-switch-enum ;;
2986 -Wno-format-zero-length) ;;
2987 -Wdisabled-optimization) ;;
2988 -Wno-pointer-sign) echo -Wno-other ;;
2989 *) echo $flag ;;
2990 esac
2991 done
2992 }
2993
2994 msvc_common_flags(){
2995 for flag; do
2996 case $flag in
2997 # In addition to specifying certain flags under the compiler
2998 # specific filters, they must be specified here as well or else the
2999 # generic catch all at the bottom will print the original flag.
3000 -Wall) ;;
3001 -std=c99) ;;
3002 # Common flags
3003 -fomit-frame-pointer) ;;
3004 -g) echo -Z7 ;;
3005 -fno-math-errno) ;;
3006 -fno-common) ;;
3007 -fno-signed-zeros) ;;
3008 -fPIC) ;;
3009 -mthumb) ;;
3010 -march=*) ;;
3011 -lz) echo zlib.lib ;;
3012 -lavifil32) echo vfw32.lib ;;
3013 -lavicap32) echo vfw32.lib user32.lib ;;
3014 -lx264) echo libx264.lib ;;
3015 -l*) echo ${flag#-l}.lib ;;
3016 -L*) echo -libpath:${flag#-L} ;;
3017 *) echo $flag ;;
3018 esac
3019 done
3020 }
3021
3022 msvc_flags(){
3023 msvc_common_flags "$@"
3024 for flag; do
3025 case $flag in
3026 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3027 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3028 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3029 -wd4273 -wd4554 -wd4701 ;;
3030 esac
3031 done
3032 }
3033
3034 icl_flags(){
3035 msvc_common_flags "$@"
3036 for flag; do
3037 case $flag in
3038 # Despite what Intel's documentation says -Wall, which is supported
3039 # on Windows, does enable remarks so disable them here.
3040 -Wall) echo $flag -Qdiag-disable:remark ;;
3041 -std=c99) echo -Qstd=c99 ;;
3042 esac
3043 done
3044 }
3045
3046 pgi_flags(){
3047 for flag; do
3048 case $flag in
3049 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3050 -fomit-frame-pointer) echo -Mnoframe ;;
3051 -g) echo -gopt ;;
3052 *) echo $flag ;;
3053 esac
3054 done
3055 }
3056
3057 suncc_flags(){
3058 for flag; do
3059 case $flag in
3060 -march=*|-mcpu=*)
3061 case "${flag#*=}" in
3062 native) echo -xtarget=native ;;
3063 v9|niagara) echo -xarch=sparc ;;
3064 ultrasparc) echo -xarch=sparcvis ;;
3065 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3066 i586|pentium) echo -xchip=pentium ;;
3067 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3068 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3069 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3070 pentium4*) echo -xtarget=pentium4 ;;
3071 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3072 *-sse3) echo -xarch=sse3 ;;
3073 core2) echo -xarch=ssse3 -xchip=core2 ;;
3074 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3075 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3076 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3077 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3078 k8|opteron|athlon64|athlon-fx)
3079 echo -xarch=sse2a ;;
3080 athlon*) echo -xarch=pentium_proa ;;
3081 esac
3082 ;;
3083 -std=c99) echo -xc99 ;;
3084 -fomit-frame-pointer) echo -xregs=frameptr ;;
3085 -fPIC) echo -KPIC -xcode=pic32 ;;
3086 -W*,*) echo $flag ;;
3087 -f*-*|-W*|-mimpure-text) ;;
3088 -shared) echo -G ;;
3089 *) echo $flag ;;
3090 esac
3091 done
3092 }
3093
3094 tms470_flags(){
3095 for flag; do
3096 case $flag in
3097 -march=*|-mcpu=*)
3098 case "${flag#*=}" in
3099 armv7-a|cortex-a*) echo -mv=7a8 ;;
3100 armv7-r|cortex-r*) echo -mv=7r4 ;;
3101 armv7-m|cortex-m*) echo -mv=7m3 ;;
3102 armv6*|arm11*) echo -mv=6 ;;
3103 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3104 echo -mv=5e ;;
3105 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3106 esac
3107 ;;
3108 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3109 -mfpu=vfp) echo --float_support=vfpv2 ;;
3110 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3111 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3112 -msoft-float) echo --float_support=vfplib ;;
3113 -O[0-3]|-mf=*) echo $flag ;;
3114 -g) echo -g -mn ;;
3115 -pds=*) echo $flag ;;
3116 -D*|-I*) echo $flag ;;
3117 --gcc|--abi=*) echo $flag ;;
3118 -me) echo $flag ;;
3119 esac
3120 done
3121 }
3122
3123 probe_cc(){
3124 pfx=$1
3125 _cc=$2
3126
3127 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3128 unset _ld_o _ldflags _ld_lib _ld_path
3129 unset _depflags _DEPCMD _DEPFLAGS
3130 _flags_filter=echo
3131
3132 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3133 _type=llvm_gcc
3134 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3135 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3136 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3137 _cflags_speed='-O3'
3138 _cflags_size='-Os'
3139 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3140 _type=gcc
3141 gcc_version=$($_cc --version | head -n1)
3142 gcc_basever=$($_cc -dumpversion)
3143 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3144 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3145 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3146 if ! $_cc -dumpversion | grep -q '^2\.'; then
3147 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3148 fi
3149 _cflags_speed='-O3'
3150 _cflags_size='-Os'
3151 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3152 _type=icc
3153 _ident=$($_cc --version | head -n1)
3154 _depflags='-MMD'
3155 _cflags_speed='-O3'
3156 _cflags_size='-Os'
3157 _cflags_noopt='-O1'
3158 elif $_cc -v 2>&1 | grep -q xlc; then
3159 _type=xlc
3160 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3161 _cflags_speed='-O5'
3162 _cflags_size='-O5 -qcompact'
3163 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3164 _type=ccc
3165 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3166 _DEPFLAGS='-M'
3167 _cflags_speed='-fast'
3168 _cflags_size='-O1'
3169 _flags_filter=ccc_flags
3170 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3171 test -d "$sysroot" || die "No valid sysroot specified."
3172 _type=armcc
3173 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3174 armcc_conf="$PWD/armcc.conf"
3175 $_cc --arm_linux_configure \
3176 --arm_linux_config_file="$armcc_conf" \
3177 --configure_sysroot="$sysroot" \
3178 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3179 die "Error creating armcc configuration file."
3180 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3181 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3182 as_default="${cross_prefix}gcc"
3183 _depflags='-MMD'
3184 _cflags_speed='-O3'
3185 _cflags_size='-Os'
3186 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3187 _type=tms470
3188 _ident=$($_cc -version | head -n1 | tr -s ' ')
3189 _flags='--gcc --abi=eabi -me'
3190 _cc_e='-ppl -fe=$@'
3191 _cc_o='-fe=$@'
3192 _depflags='-ppa -ppd=$(@:.o=.d)'
3193 _cflags_speed='-O3 -mf=5'
3194 _cflags_size='-O3 -mf=2'
3195 _flags_filter=tms470_flags
3196 elif $_cc -v 2>&1 | grep -q clang; then
3197 _type=clang
3198 _ident=$($_cc --version 2>/dev/null | head -n1)
3199 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3200 _cflags_speed='-O3'
3201 _cflags_size='-Os'
3202 elif $_cc -V 2>&1 | grep -q Sun; then
3203 _type=suncc
3204 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3205 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3206 _DEPFLAGS='-xM1 -xc99'
3207 _ldflags='-std=c99'
3208 _cflags_speed='-O5'
3209 _cflags_size='-O5 -xspace'
3210 _flags_filter=suncc_flags
3211 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3212 _type=pathscale
3213 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3214 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3215 _cflags_speed='-O2'
3216 _cflags_size='-Os'
3217 _flags_filter='filter_out -Wdisabled-optimization'
3218 elif $_cc -v 2>&1 | grep -q Open64; then
3219 _type=open64
3220 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3221 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3222 _cflags_speed='-O2'
3223 _cflags_size='-Os'
3224 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3225 elif $_cc -V 2>&1 | grep -q Portland; then
3226 _type=pgi
3227 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3228 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3229 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3230 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3231 _cflags_noopt="-O1"
3232 _flags_filter=pgi_flags
3233 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3234 _type=armasm
3235 _ident=$($_cc | head -n1)
3236 # 4509: "This form of conditional instruction is deprecated"
3237 _flags="-nologo -ignore 4509"
3238 _flags_filter=armasm_flags
3239 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3240 _type=msvc
3241 _ident=$($_cc 2>&1 | head -n1)
3242 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3243 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3244 _cflags_speed="-O2"
3245 _cflags_size="-O1"
3246 if $_cc -nologo- 2>&1 | grep -q Linker; then
3247 _ld_o='-out:$@'
3248 else
3249 _ld_o='-Fe$@'
3250 fi
3251 _cc_o='-Fo$@'
3252 _cc_e='-P -Fi$@'
3253 _flags_filter=msvc_flags
3254 _ld_lib='lib%.a'
3255 _ld_path='-libpath:'
3256 _flags='-nologo'
3257 elif $_cc 2>&1 | grep -q Intel; then
3258 _type=icl
3259 _ident=$($_cc 2>&1 | head -n1)
3260 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3261 # Not only is O3 broken on 13.x+ but it is slower on all previous
3262 # versions (tested) as well.
3263 _cflags_speed="-O2"
3264 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3265 if $_cc 2>&1 | grep -q Linker; then
3266 _ld_o='-out:$@'
3267 else
3268 _ld_o='-Fe$@'
3269 fi
3270 _cc_o='-Fo$@'
3271 _cc_e='-P'
3272 _flags_filter=icl_flags
3273 _ld_lib='lib%.a'
3274 _ld_path='-libpath:'
3275 # -Qdiag-error to make icl error when seeing certain unknown arguments
3276 _flags='-nologo -Qdiag-error:4044,10157'
3277 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3278 # with MSVC which enables it by default.
3279 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3280 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3281 # lld can emulate multiple different linkers; in ms link.exe mode,
3282 # the -? parameter gives the help output which contains an identifyable
3283 # string, while it gives an error in other modes.
3284 _type=lld-link
3285 # The link.exe mode doesn't have a switch for getting the version,
3286 # but we can force it back to gnu mode and get the version from there.
3287 _ident=$($_cc -flavor gnu --version)
3288 _ld_o='-out:$@'
3289 _flags_filter=msvc_flags
3290 _ld_lib='lib%.a'
3291 _ld_path='-libpath:'
3292 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3293 _type=cparser
3294 _ident=$($_cc --version | head -n1)
3295 _depflags='-MMD'
3296 _cflags_speed='-O4'
3297 _cflags_size='-O2'
3298 _flags_filter=cparser_flags
3299 fi
3300
3301 eval ${pfx}_type=\$_type
3302 eval ${pfx}_ident=\$_ident
3303 }
3304
3305 set_ccvars(){
3306 eval ${1}_C=\${_cc_c-\${${1}_C}}
3307 eval ${1}_E=\${_cc_e-\${${1}_E}}
3308 eval ${1}_O=\${_cc_o-\${${1}_O}}
3309
3310 if [ -n "$_depflags" ]; then
3311 eval ${1}_DEPFLAGS=\$_depflags
3312 else
3313 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3314 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3315 eval DEP${1}FLAGS=\$_flags
3316 fi
3317 }
3318
3319 probe_cc cc "$cc"
3320 cflags_filter=$_flags_filter
3321 cflags_speed=$_cflags_speed
3322 cflags_size=$_cflags_size
3323 cflags_noopt=$_cflags_noopt
3324 add_cflags $_flags $_cflags
3325 cc_ldflags=$_ldflags
3326 set_ccvars CC
3327
3328 probe_cc hostcc "$host_cc"
3329 host_cflags_filter=$_flags_filter
3330 add_host_cflags $_flags $_cflags
3331 set_ccvars HOSTCC
3332
3333 test -n "$cc_type" && enable $cc_type ||
3334 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3335
3336 : ${as_default:=$cc}
3337 : ${objcc_default:=$cc}
3338 : ${dep_cc_default:=$cc}
3339 : ${ld_default:=$cc}
3340 : ${host_ld_default:=$host_cc}
3341 set_default ar as objcc dep_cc ld host_ld
3342
3343 probe_cc as "$as"
3344 asflags_filter=$_flags_filter
3345 add_asflags $_flags $_cflags
3346 set_ccvars AS
3347
3348 probe_cc objcc "$objcc"
3349 objcflags_filter=$_flags_filter
3350 add_objcflags $_flags $_cflags
3351 set_ccvars OBJC
3352
3353 probe_cc ld "$ld"
3354 ldflags_filter=$_flags_filter
3355 add_ldflags $_flags $_ldflags
3356 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3357 LD_O=${_ld_o-$LD_O}
3358 LD_LIB=${_ld_lib-$LD_LIB}
3359 LD_PATH=${_ld_path-$LD_PATH}
3360
3361 probe_cc hostld "$host_ld"
3362 host_ldflags_filter=$_flags_filter
3363 add_host_ldflags $_flags $_ldflags
3364 HOSTLD_O=${_ld_o-$HOSTLD_O}
3365
3366 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3367 probe_cc depcc "$dep_cc"
3368 CCDEP=${_DEPCMD:-$DEPCMD}
3369 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3370 DEPCCFLAGS=$_flags
3371 fi
3372
3373 if $ar 2>&1 | grep -q Microsoft; then
3374 arflags="-nologo"
3375 ar_o='-out:$@'
3376 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3377 arflags="rq"
3378 ar_o='$@'
3379 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3380 arflags='-Xany -r -c'
3381 ar_o='$@'
3382 else
3383 arflags="rc"
3384 ar_o='$@'
3385 fi
3386
3387 add_cflags $extra_cflags
3388 add_objcflags $extra_objcflags
3389 add_asflags $extra_cflags
3390
3391 if test -n "$sysroot"; then
3392 case "$cc_type" in
3393 gcc|llvm_gcc|clang)
3394 add_cppflags --sysroot="$sysroot"
3395 add_ldflags --sysroot="$sysroot"
3396 ;;
3397 tms470)
3398 add_cppflags -I"$sysinclude"
3399 add_ldflags --sysroot="$sysroot"
3400 ;;
3401 esac
3402 fi
3403
3404 if test "$cpu" = host; then
3405 enabled cross_compile &&
3406 die "--cpu=host makes no sense when cross-compiling."
3407
3408 case "$cc_type" in
3409 gcc|llvm_gcc)
3410 check_native(){
3411 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3412 sed -n "/cc1.*$1=/{
3413 s/.*$1=\\([^ ]*\\).*/\\1/
3414 p
3415 q
3416 }" $TMPE
3417 }
3418 cpu=$(check_native -march || check_native -mcpu)
3419 ;;
3420 esac
3421
3422 test "${cpu:-host}" = host &&
3423 die "--cpu=host not supported with compiler $cc"
3424 fi
3425
3426 # Deal with common $arch aliases
3427 case "$arch" in
3428 aarch64|arm64)
3429 arch="aarch64"
3430 ;;
3431 arm*)
3432 arch="arm"
3433 ;;
3434 mips*|IP*)
3435 case "$arch" in
3436 *el)
3437 add_cppflags -EL
3438 add_ldflags -EL
3439 ;;
3440 *eb)
3441 add_cppflags -EB
3442 add_ldflags -EB
3443 ;;
3444 esac
3445 arch="mips"
3446 ;;
3447 parisc*|hppa*)
3448 arch="parisc"
3449 ;;
3450 "Power Macintosh"|ppc*|powerpc*)
3451 arch="ppc"
3452 ;;
3453 s390|s390x)
3454 arch="s390"
3455 ;;
3456 sh4|sh)
3457 arch="sh4"
3458 ;;
3459 sun4u|sparc*)
3460 arch="sparc"
3461 ;;
3462 tilegx|tile-gx)
3463 arch="tilegx"
3464 ;;
3465 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3466 arch="x86"
3467 ;;
3468 esac
3469
3470 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3471 enable $arch
3472
3473 # Add processor-specific flags
3474 if enabled aarch64; then
3475
3476 case $cpu in
3477 armv*)
3478 cpuflags="-march=$cpu"
3479 ;;
3480 *)
3481 cpuflags="-mcpu=$cpu"
3482 ;;
3483 esac
3484
3485 elif enabled alpha; then
3486
3487 cpuflags="-mcpu=$cpu"
3488
3489 elif enabled arm; then
3490
3491 check_arm_arch() {
3492 check_cpp_condition stddef.h \
3493 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3494 $cpuflags
3495 }
3496
3497 probe_arm_arch() {
3498 if check_arm_arch 4; then echo armv4
3499 elif check_arm_arch 4T; then echo armv4t
3500 elif check_arm_arch 5; then echo armv5
3501 elif check_arm_arch 5E; then echo armv5e
3502 elif check_arm_arch 5T; then echo armv5t
3503 elif check_arm_arch 5TE; then echo armv5te
3504 elif check_arm_arch 5TEJ; then echo armv5te
3505 elif check_arm_arch 6; then echo armv6
3506 elif check_arm_arch 6J; then echo armv6j
3507 elif check_arm_arch 6K; then echo armv6k
3508 elif check_arm_arch 6Z; then echo armv6z
3509 elif check_arm_arch 6ZK; then echo armv6zk
3510 elif check_arm_arch 6T2; then echo armv6t2
3511 elif check_arm_arch 7; then echo armv7
3512 elif check_arm_arch 7A 7_A; then echo armv7-a
3513 elif check_arm_arch 7S; then echo armv7-a
3514 elif check_arm_arch 7R 7_R; then echo armv7-r
3515 elif check_arm_arch 7M 7_M; then echo armv7-m
3516 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3517 elif check_arm_arch 8A 8_A; then echo armv8-a
3518 fi
3519 }
3520
3521 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3522
3523 case $cpu in
3524 armv*)
3525 cpuflags="-march=$cpu"
3526 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3527 ;;
3528 *)
3529 cpuflags="-mcpu=$cpu"
3530 case $cpu in
3531 cortex-a*) subarch=armv7a ;;
3532 cortex-r*) subarch=armv7r ;;
3533 cortex-m*) enable thumb; subarch=armv7m ;;
3534 arm11*) subarch=armv6 ;;
3535 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3536 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3537 *) subarch=$(probe_arm_arch) ;;
3538 esac
3539 ;;
3540 esac
3541
3542 case "$subarch" in
3543 armv5t*) enable fast_clz ;;
3544 armv[6-8]*) enable fast_clz fast_unaligned ;;
3545 esac
3546
3547 elif enabled avr32; then
3548
3549 case $cpu in
3550 ap7[02]0[0-2])
3551 subarch="avr32_ap"
3552 cpuflags="-mpart=$cpu"
3553 ;;
3554 ap)
3555 subarch="avr32_ap"
3556 cpuflags="-march=$cpu"
3557 ;;
3558 uc3[ab]*)
3559 subarch="avr32_uc"
3560 cpuflags="-mcpu=$cpu"
3561 ;;
3562 uc)
3563 subarch="avr32_uc"
3564 cpuflags="-march=$cpu"
3565 ;;
3566 esac
3567
3568 elif enabled bfin; then
3569
3570 cpuflags="-mcpu=$cpu"
3571
3572 elif enabled mips; then
3573
3574 cpuflags="-march=$cpu"
3575
3576 elif enabled ppc; then
3577
3578 disable ldbrx
3579
3580 case $(tolower $cpu) in
3581 601|ppc601|powerpc601)
3582 cpuflags="-mcpu=601"
3583 disable altivec
3584 ;;
3585 603*|ppc603*|powerpc603*)
3586 cpuflags="-mcpu=603"
3587 disable altivec
3588 ;;
3589 604*|ppc604*|powerpc604*)
3590 cpuflags="-mcpu=604"
3591 disable altivec
3592 ;;
3593 g3|75*|ppc75*|powerpc75*)
3594 cpuflags="-mcpu=750"
3595 disable altivec
3596 ;;
3597 g4|745*|ppc745*|powerpc745*)
3598 cpuflags="-mcpu=7450"
3599 disable vsx
3600 ;;
3601 74*|ppc74*|powerpc74*)
3602 cpuflags="-mcpu=7400"
3603 disable vsx
3604 ;;
3605 g5|970|ppc970|powerpc970)
3606 cpuflags="-mcpu=970"
3607 disable vsx
3608 ;;
3609 power[3-6]*)
3610 cpuflags="-mcpu=$cpu"
3611 disable vsx
3612 ;;
3613 power[7-8]*)
3614 cpuflags="-mcpu=$cpu"
3615 enable ldbrx
3616 ;;
3617 cell)
3618 cpuflags="-mcpu=cell"
3619 enable ldbrx
3620 disable vsx
3621 ;;
3622 e500mc)
3623 cpuflags="-mcpu=e500mc"
3624 disable altivec
3625 ;;
3626 e500v2)
3627 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3628 disable altivec
3629 disable dcbzl
3630 ;;
3631 e500)
3632 cpuflags="-mcpu=8540 -mhard-float"
3633 disable altivec
3634 disable dcbzl
3635 ;;
3636 esac
3637
3638 elif enabled sparc; then
3639
3640 case $cpu in
3641 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3642 cpuflags="-mcpu=$cpu"
3643 ;;
3644 ultrasparc*|niagara[234])
3645 cpuflags="-mcpu=$cpu"
3646 ;;
3647 esac
3648
3649 elif enabled x86; then
3650
3651 case $cpu in
3652 i[345]86|pentium)
3653 cpuflags="-march=$cpu"
3654 disable i686
3655 disable mmx
3656 ;;
3657 # targets that do NOT support nopl and conditional mov (cmov)
3658 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3659 cpuflags="-march=$cpu"
3660 disable i686
3661 ;;
3662 # targets that do support nopl and conditional mov (cmov)
3663 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3664 cpuflags="-march=$cpu"
3665 enable i686
3666 enable fast_cmov
3667 ;;
3668 # targets that do support conditional mov but on which it's slow
3669 pentium4|pentium4m|prescott|nocona)
3670 cpuflags="-march=$cpu"
3671 enable i686
3672 disable fast_cmov
3673 ;;
3674 esac
3675
3676 fi
3677
3678 if [ "$cpu" != generic ]; then
3679 add_cflags $cpuflags
3680 add_asflags $cpuflags
3681 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3682 fi
3683
3684 # compiler sanity check
3685 check_exec <<EOF
3686 int main(void){ return 0; }
3687 EOF
3688 if test "$?" != 0; then
3689 echo "$cc is unable to create an executable file."
3690 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3691 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3692 echo "Only do this if you know what cross compiling means."
3693 fi
3694 die "C compiler test failed."
3695 fi
3696
3697 add_cppflags -D_ISOC99_SOURCE
3698 check_cflags -std=c99
3699 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3700 #include <stdlib.h>
3701 EOF
3702 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3703 #include <stdlib.h>
3704 EOF
3705
3706 add_host_cppflags -D_ISOC99_SOURCE
3707 check_host_cflags -std=c99
3708 check_host_cflags -Wall
3709 check_host_cflags -O3
3710
3711 check_64bit(){
3712 arch32=$1
3713 arch64=$2
3714 expr=$3
3715 check_code cc "" "int test[2*($expr) - 1]" &&
3716 subarch=$arch64 || subarch=$arch32
3717 }
3718
3719 case "$arch" in
3720 aarch64|alpha|ia64)
3721 spic=$shared
3722 ;;
3723 mips)
3724 check_64bit mips mips64 '_MIPS_SIM > 1'
3725 spic=$shared
3726 ;;
3727 parisc)
3728 check_64bit parisc parisc64 'sizeof(void *) > 4'
3729 spic=$shared
3730 ;;
3731 ppc)
3732 check_64bit ppc ppc64 'sizeof(void *) > 4'
3733 spic=$shared
3734 ;;
3735 s390)
3736 check_64bit s390 s390x 'sizeof(void *) > 4'
3737 spic=$shared
3738 ;;
3739 sparc)
3740 check_64bit sparc sparc64 'sizeof(void *) > 4'
3741 spic=$shared
3742 ;;
3743 x86)
3744 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3745 if test "$subarch" = "x86_64"; then
3746 spic=$shared
3747 fi
3748 ;;
3749 esac
3750
3751 enable $subarch
3752 enabled spic && enable_weak pic
3753
3754 # OS specific
3755 case $target_os in
3756 aix)
3757 SHFLAGS=-shared
3758 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3759 enabled shared && add_ldflags -Wl,-brtl
3760 ;;
3761 android)
3762 disable symver
3763 enable section_data_rel_ro
3764 SLIB_INSTALL_NAME='$(SLIBNAME)'
3765 SLIB_INSTALL_LINKS=
3766 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3767 ;;
3768 haiku)
3769 prefix_default="/boot/common"
3770 network_extralibs="-lnetwork"
3771 host_libs=
3772 ;;
3773 sunos)
3774 SHFLAGS='-shared -Wl,-h,$$(@F)'
3775 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3776 network_extralibs="-lsocket -lnsl"
3777 # When using suncc to build, the Solaris linker will mark
3778 # an executable with each instruction set encountered by
3779 # the Solaris assembler. As our libraries contain their own
3780 # guards for processor-specific code, instead suppress
3781 # generation of the HWCAPS ELF section on Solaris x86 only.
3782 enabled_all suncc x86 &&
3783 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3784 add_ldflags -Wl,-M,mapfile
3785 nm_default='nm -P -g'
3786 version_script='-M'
3787 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3788 ;;
3789 netbsd)
3790 disable symver
3791 oss_indev_extralibs="-lossaudio"
3792 oss_outdev_extralibs="-lossaudio"
3793 ;;
3794 openbsd|bitrig)
3795 disable symver
3796 SHFLAGS='-shared'
3797 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3798 SLIB_INSTALL_LINKS=
3799 oss_indev_extralibs="-lossaudio"
3800 oss_outdev_extralibs="-lossaudio"
3801 ;;
3802 dragonfly)
3803 disable symver
3804 ;;
3805 freebsd)
3806 ;;
3807 bsd/os)
3808 add_extralibs -lpoll -lgnugetopt
3809 ;;
3810 darwin)
3811 enabled ppc && add_asflags -force_cpusubtype_ALL
3812 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3813 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3814 add_ldflags -Wl,-dynamic,-search_paths_first
3815 SLIBSUF=".dylib"
3816 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3817 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3818 objformat="macho"
3819 enabled x86_64 && objformat="macho64"
3820 enabled_any pic shared ||
3821 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3822 check_header dispatch/dispatch.h &&
3823 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3824 ;;
3825 msys*)
3826 die "Native MSYS builds are discouraged, please use the MINGW environment."
3827 ;;
3828 mingw32*|mingw64*)
3829 if test $target_os = "mingw32ce"; then
3830 disable network
3831 else
3832 target_os=mingw32
3833 fi
3834 LIBTARGET=i386
3835 if enabled x86_64; then
3836 LIBTARGET="i386:x86-64"
3837 elif enabled arm; then
3838 LIBTARGET=arm-wince
3839 fi
3840 check_ldflags -Wl,--nxcompat
3841 check_ldflags -Wl,--dynamicbase
3842 shlibdir_default="$bindir_default"
3843 SLIBPREF=""
3844 SLIBSUF=".dll"
3845 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3846 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3847 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3848 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3849 SLIB_INSTALL_LINKS=
3850 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3851 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3852 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3853 objformat="win32"
3854 dlltool="${cross_prefix}dlltool"
3855 ranlib=:
3856 enable dos_paths
3857 ;;
3858 win32|win64)
3859 disable symver
3860 if enabled shared; then
3861 # Link to the import library instead of the normal static library
3862 # for shared libs.
3863 LD_LIB='%.lib'
3864 # Cannot build both shared and static libs with MSVC or icl.
3865 disable static
3866 fi
3867 shlibdir_default="$bindir_default"
3868 SLIBPREF=""
3869 SLIBSUF=".dll"
3870 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3871 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3872 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3873 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3874 SLIB_INSTALL_LINKS=
3875 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3876 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3877 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3878 objformat="win32"
3879 ranlib=:
3880 enable dos_paths
3881 ;;
3882 cygwin*)
3883 target_os=cygwin
3884 shlibdir_default="$bindir_default"
3885 SLIBPREF="cyg"
3886 SLIBSUF=".dll"
3887 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3888 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3889 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3890 SLIB_INSTALL_LINKS=
3891 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3892 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3893 objformat="win32"
3894 enable dos_paths
3895 ;;
3896 *-dos|freedos|opendos)
3897 network_extralibs="-lsocket"
3898 objformat="coff"
3899 enable dos_paths
3900 add_cppflags -U__STRICT_ANSI__
3901 ;;
3902 linux)
3903 enable dv1394
3904 enable section_data_rel_ro
3905 ;;
3906 irix*)
3907 target_os=irix
3908 ranlib="echo ignoring ranlib"
3909 ;;
3910 os/2*)
3911 ln_s="cp -f"
3912 objformat="aout"
3913 add_cppflags -D_GNU_SOURCE
3914 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3915 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3916 LIBSUF="_s.a"
3917 SLIBPREF=""
3918 SLIBSUF=".dll"
3919 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3920 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3921 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3922 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3923 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3924 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3925 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3926 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3927 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3928 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3929 enable dos_paths
3930 ;;
3931 gnu/kfreebsd)
3932 add_cppflags -D_BSD_SOURCE
3933 ;;
3934 gnu)
3935 ;;
3936 qnx)
3937 add_cppflags -D_QNX_SOURCE
3938 network_extralibs="-lsocket"
3939 ;;
3940 symbian)
3941 SLIBSUF=".dll"
3942 enable dos_paths
3943 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3944 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3945 add_ldflags -Wl,--target1-abs,--no-undefined \
3946 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3947 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3948 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3949 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3950 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3951 ;;
3952 osf1)
3953 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3954 ;;
3955 minix)
3956 ;;
3957 plan9)
3958 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3959 -D_REENTRANT_SOURCE \
3960 -D_RESEARCH_SOURCE \
3961 -DFD_SETSIZE=96 \
3962 -DHAVE_SOCK_OPTS
3963 add_compat strtod.o strtod=avpriv_strtod
3964 network_extralibs='-lbsd'
3965 exeobjs=compat/plan9/main.o
3966 cp_f='cp'
3967 ;;
3968 none)
3969 ;;
3970 *)
3971 die "Unknown OS '$target_os'."
3972 ;;
3973 esac
3974
3975 # determine libc flavour
3976
3977 probe_libc(){
3978 pfx=$1
3979 pfx_no_=${pfx%_}
3980 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3981 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3982 eval ${pfx}libc_type=uclibc
3983 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3984 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3985 eval ${pfx}libc_type=glibc
3986 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3987 # MinGW headers can be installed on Cygwin, so check for newlib first.
3988 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3989 eval ${pfx}libc_type=newlib
3990 add_${pfx}cppflags -U__STRICT_ANSI__
3991 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3992 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3993 eval ${pfx}libc_type=mingw64
3994 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3995 eval test \$${pfx_no_}cc_type = "gcc" &&
3996 add_${pfx}cppflags -D__printf__=__gnu_printf__
3997 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3998 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3999 eval ${pfx}libc_type=mingw32
4000 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4001 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4002 die "ERROR: MinGW32 runtime version must be >= 3.15."
4003 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4004 eval test \$${pfx_no_}cc_type = "gcc" &&
4005 add_${pfx}cppflags -D__printf__=__gnu_printf__
4006 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4007 eval ${pfx}libc_type=msvcrt
4008 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4009 if [ "$pfx" = host_ ]; then
4010 add_host_cppflags -Dsnprintf=_snprintf
4011 else
4012 add_compat strtod.o strtod=avpriv_strtod
4013 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4014 _snprintf=avpriv_snprintf \
4015 vsnprintf=avpriv_vsnprintf
4016 fi
4017 fi
4018 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4019 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4020 # 0x601 by default unless something else is set by the user.
4021 # This can easily lead to us detecting functions only present
4022 # in such new versions and producing binaries requiring windows 7.0.
4023 # Therefore explicitly set the default to XP unless the user has
4024 # set something else on the command line.
4025 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4026 # family. For these cases, configure is free to use any functions
4027 # found in the SDK headers by default. (Alternatively, we could force
4028 # _WIN32_WINNT to 0x0602 in that case.)
4029 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4030 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4031 #ifdef WINAPI_FAMILY
4032 #include <winapifamily.h>
4033 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4034 #error not desktop
4035 #endif
4036 #endif
4037 EOF
4038 if [ "$pfx" = "" ]; then
4039 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4040 fi
4041 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4042 eval ${pfx}libc_type=klibc
4043 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4044 eval ${pfx}libc_type=bionic
4045 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4046 eval ${pfx}libc_type=solaris
4047 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4048 else
4049 eval ${pfx}libc_type=default
4050 add_${pfx}cppflags -D_DEFAULT_SOURCE
4051 fi
4052 }
4053
4054 probe_libc
4055 test -n "$libc_type" && enable libc_$libc_type
4056 probe_libc host_
4057 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4058
4059 case $libc_type in
4060 bionic)
4061 add_compat strtod.o strtod=avpriv_strtod
4062 ;;
4063 esac
4064
4065 # hacks for compiler/libc/os combinations
4066
4067 if enabled_all tms470 libc_glibc; then
4068 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4069 add_cppflags -D__USER_LABEL_PREFIX__=
4070 add_cppflags -D__builtin_memset=memset
4071 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4072 add_cflags -pds=48 # incompatible redefinition of macro
4073 fi
4074
4075 if enabled_all ccc libc_glibc; then
4076 add_ldflags -Wl,-z,now # calls to libots crash without this
4077 fi
4078
4079 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4080 add_cppflags '-I\$(SRC_PATH)/compat/float'
4081
4082 esc(){
4083 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4084 }
4085
4086 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4087
4088 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4089
4090 set_default $PATHS_LIST
4091 set_default nm
4092
4093 # we need to build at least one lib type
4094 if ! enabled_any static shared; then
4095 cat <<EOF
4096 At least one library type must be built.
4097 Specify --enable-static to build the static libraries or --enable-shared to
4098 build the shared libraries as well. To only build the shared libraries specify
4099 --disable-static in addition to --enable-shared.
4100 EOF
4101 exit 1
4102 fi
4103
4104 die_license_disabled() {
4105 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4106 }
4107
4108 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4109 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4110 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4111
4112 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4113
4114 disabled optimizations || check_cflags -fomit-frame-pointer
4115
4116 enable_weak_pic() {
4117 disabled pic && return
4118 enable pic
4119 add_cppflags -DPIC
4120 case "$target_os" in
4121 mingw*|cygwin*)
4122 ;;
4123 *)
4124 add_cflags -fPIC
4125 ;;
4126 esac
4127 add_asflags -fPIC
4128 }
4129
4130 enabled pic && enable_weak_pic
4131
4132 check_cc <<EOF || die "Symbol mangling check failed."
4133 int ff_extern;
4134 EOF
4135 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4136 extern_prefix=${sym%%ff_extern*}
4137
4138 check_cc <<EOF && enable_weak inline_asm
4139 void foo(void) { __asm__ volatile ("" ::); }
4140 EOF
4141
4142 _restrict=
4143 for restrict_keyword in restrict __restrict__ __restrict; do
4144 check_cc <<EOF && _restrict=$restrict_keyword && break
4145 void foo(char * $restrict_keyword p);
4146 EOF
4147 done
4148
4149 check_cc <<EOF && enable pragma_deprecated
4150 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4151 EOF
4152
4153 check_cc <<EOF && enable attribute_packed
4154 struct { int x; } __attribute__((packed)) x;
4155 EOF
4156
4157 check_cc <<EOF && enable attribute_may_alias
4158 union { int x; } __attribute__((may_alias)) x;
4159 EOF
4160
4161 check_cc <<EOF || die "endian test failed"
4162 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4163 EOF
4164 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4165
4166 check_gas() {
4167 log "check_gas using '$as' as AS"
4168 # :vararg is used on aarch64, arm and ppc altivec
4169 check_as <<EOF || return 1
4170 .macro m n, y:vararg=0
4171 \n: .int \y
4172 .endm
4173 m x
4174 EOF
4175 # .altmacro is only used in arm asm
4176 ! enabled arm || check_as <<EOF || return 1
4177 .altmacro
4178 EOF
4179 enable gnu_as
4180 return 0
4181 }
4182
4183 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4184 nogas=:
4185 enabled_any arm aarch64 && nogas=die
4186 enabled_all ppc altivec && nogas=warn
4187 as_noop=-v
4188
4189 case $as_type in
4190 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4191 gcc) gaspp_as_type=gas ;;
4192 *) gaspp_as_type=$as_type ;;
4193 esac
4194
4195 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4196
4197 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4198 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4199
4200 if ! check_gas ; then
4201 as=${gas:=$as}
4202 check_gas || \
4203 $nogas "GNU assembler not found, install/update gas-preprocessor"
4204 fi
4205
4206 check_as <<EOF && enable as_func
4207 .func test
4208 .endfunc
4209 EOF
4210 fi
4211
4212 check_inline_asm inline_asm_labels '"1:\n"'
4213
4214 if enabled aarch64; then
4215 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4216 # internal assembler in clang 3.3 does not support this instruction
4217 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4218 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4219
4220 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4221
4222 elif enabled alpha; then
4223
4224 check_cflags -mieee
4225
4226 elif enabled arm; then
4227
4228 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4229 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4230 enabled thumb && check_cflags -mthumb || check_cflags -marm
4231
4232 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4233 enable vfp_args
4234 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4235 enable vfp_args
4236 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4237 case "${cross_prefix:-$cc}" in
4238 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4239 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4240 __asm__ (".eabi_attribute 28, 1");
4241 int main(void) { return 0; }
4242 EOF
4243 esac
4244 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4245 fi
4246
4247 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4248 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4249 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4250 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4251 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4252 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4253
4254 [ $target_os = linux ] || [ $target_os = android ] ||
4255 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4256 $ARCH_EXT_LIST_ARM
4257
4258 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4259
4260 check_as <<EOF && enable as_dn_directive
4261 ra .dn d0.i16
4262 .unreq ra
4263 EOF
4264 check_as <<EOF && enable as_fpu_directive
4265 .fpu neon
4266 EOF
4267
4268 # llvm's integrated assembler supports .object_arch from llvm 3.5
4269 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4270 .object_arch armv4
4271 EOF
4272
4273 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4274
4275 elif enabled mips; then
4276
4277 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4278
4279 # make sure that only an instruction set is enabled
4280 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4281
4282 if enabled mips64; then
4283 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4284 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4285 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4286 else
4287 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4288 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4289 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4290 fi
4291
4292 elif enabled parisc; then
4293
4294 if enabled gcc; then
4295 case $($cc -dumpversion) in
4296 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4297 esac
4298 fi
4299
4300 elif enabled ppc; then
4301
4302 enable local_aligned_8 local_aligned_16
4303
4304 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4305 check_inline_asm ibm_asm '"add 0, 0, 0"'
4306 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4307 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4308
4309 # AltiVec flags: The FSF version of GCC differs from the Apple version
4310 if enabled altivec; then
4311 check_cflags -maltivec -mabi=altivec &&
4312 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4313 check_cflags -faltivec
4314
4315 # check if our compiler supports Motorola AltiVec C API
4316 check_cc <<EOF || disable altivec
4317 $inc_altivec_h
4318 int main(void) {
4319 vector signed int v1 = (vector signed int) { 0 };
4320 vector signed int v2 = (vector signed int) { 1 };
4321 v1 = vec_add(v1, v2);
4322 return 0;
4323 }
4324 EOF
4325
4326 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4327 fi
4328
4329 if enabled vsx; then
4330 check_cflags -mvsx &&
4331 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4332 fi
4333
4334 if enabled power8; then
4335 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4336 fi
4337
4338 elif enabled x86; then
4339
4340 check_builtin rdtsc intrin.h "__rdtsc()"
4341 check_builtin mm_empty mmintrin.h "_mm_empty()"
4342
4343 enable local_aligned_8 local_aligned_16
4344
4345 # check whether EBP is available on x86
4346 # As 'i' is stored on the stack, this program will crash
4347 # if the base pointer is used to access it because the
4348 # base pointer is cleared in the inline assembly code.
4349 check_exec_crash <<EOF && enable ebp_available
4350 volatile int i=0;
4351 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4352 return i;
4353 EOF
4354
4355 # check whether EBX is available on x86
4356 check_inline_asm ebx_available '""::"b"(0)' &&
4357 check_inline_asm ebx_available '"":::"%ebx"'
4358
4359 # check whether xmm clobbers are supported
4360 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4361
4362 # check whether binutils is new enough to compile SSSE3/MMXEXT
4363 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4364 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4365
4366 if ! disabled_any asm mmx yasm; then
4367 if check_cmd $yasmexe --version; then
4368 enabled x86_64 && yasm_extra="-m amd64"
4369 yasm_debug="-g dwarf2"
4370 elif check_cmd nasm -v; then
4371 yasmexe=nasm
4372 yasm_debug="-g -F dwarf"
4373 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4374 fi
4375
4376 YASMFLAGS="-f $objformat $yasm_extra"
4377 enabled pic