3 # Libav configure script
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
10 # Prevent locale nonsense from breaking basic text processing.
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
18 echo "Trying shell $1"
19 type "$1" > /dev
/null
2>&1 && exec "$@"
23 (: ${foo%%bar}) 2> /dev
/null
26 (: ${foo?}) 2> /dev
/null
29 if test "$E1" != 0 ||
test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
32 if test "0$FF_CONF_EXEC" -lt
1; then
34 try_exec bash
"$0" "$@"
36 if test "0$FF_CONF_EXEC" -lt
2; then
38 try_exec ksh
"$0" "$@"
40 if test "0$FF_CONF_EXEC" -lt
3; then
42 try_exec
/usr
/xpg4
/bin
/sh
"$0" "$@"
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."
57 test -d
/usr
/xpg4
/bin
&& PATH
=/usr
/xpg4
/bin
:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$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]
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]
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
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
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
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
199 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
200 --enable-libopencv enable video filtering via libopencv [no]
201 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
202 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
203 --enable-libopus enable Opus de/encoding via libopus [no]
204 --enable-libpulse enable Pulseaudio input via libpulse [no]
205 --enable-librtmp enable RTMP[E] support via librtmp [no]
206 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
207 --enable-libsnappy enable Snappy compression [no]
208 --enable-libspeex enable Speex de/encoding via libspeex [no]
209 --enable-libtheora enable Theora encoding via libtheora [no]
210 --enable-libtwolame enable MP2 encoding via libtwolame [no]
211 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
212 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
213 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
214 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
215 --enable-libwavpack enable wavpack encoding via libwavpack [no]
216 --enable-libwebp enable WebP encoding via libwebp [no]
217 --enable-libx264 enable H.264 encoding via x264 [no]
218 --enable-libx265 enable HEVC encoding via x265 [no]
219 --enable-libxavs enable AVS encoding via xavs [no]
220 --enable-libxcb enable X11 grabbing using XCB [no]
221 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
222 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
223 --enable-libxvid enable Xvid encoding via xvidcore,
224 native MPEG-4/Xvid encoder exists [no]
225 --enable-mmal enable decoding via MMAL [no]
226 --enable-nvenc enable encoding via NVENC [no]
227 --enable-openssl enable openssl [no]
228 --enable-x11grab enable X11 grabbing (legacy) [no]
229 --enable-zlib enable zlib [autodetect]
232 --arch=ARCH select architecture [$arch]
233 --cpu=CPU select the minimum required CPU (affects
234 instruction selection, may crash on older CPUs)
235 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
236 --enable-cross-compile assume a cross-compiler is used
237 --sysroot=PATH root of cross-build tree
238 --sysinclude=PATH location of cross-build system headers
239 --target-os=OS compiler targets OS [$target_os]
240 --target-exec=CMD command to run executables on target
241 --target-path=DIR path to view of build directory on target
242 --target-samples=DIR path to samples directory on target
243 --toolchain=NAME set tool defaults according to NAME
245 --ar=AR use archive tool AR [$ar_default]
246 --as=AS use assembler AS [$as_default]
247 --cc=CC use C compiler CC [$cc_default]
248 --objcc=OCC use ObjC compiler OCC [$cc_default]
249 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
250 --ld=LD use linker LD
251 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
252 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
253 --host-cc=HOSTCC use host C compiler HOSTCC
254 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
255 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
256 --host-ld=HOSTLD use host linker HOSTLD
257 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
258 --host-libs=HLIBS use libs HLIBS when linking for host
259 --host-os=OS compiler host OS [$target_os]
260 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
261 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
262 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
263 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
264 --extra-libs=ELIBS add ELIBS [$ELIBS]
265 --extra-version=STRING version string suffix []
266 --optflags=OPTFLAGS override optimization-related compiler flags
267 --build-suffix=SUFFIX library name suffix []
268 --enable-pic build position-independent code
269 --enable-thumb compile for Thumb instruction set
270 --enable-lto use link-time optimization
271 --env="ENV=override" override the environment variables
273 Advanced options (experts only):
274 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
275 --custom-allocator=NAME use a supported custom allocator
276 --disable-symver disable symbol versioning
277 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
278 --disable-safe-bitstream-reader
279 disable buffer boundary checking in bitreaders
280 (faster, but may crash)
281 --enable-memalign-hack emulate memalign, interferes with memory debuggers
282 --enable-sram allow use of on-chip SRAM
284 Optimization options (experts only):
285 --disable-asm disable all assembly optimizations
286 --disable-altivec disable AltiVec optimizations
287 --disable-vsx disable VSX optimizations
288 --disable-power8 disable POWER8 optimizations
289 --disable-amd3dnow disable 3DNow! optimizations
290 --disable-amd3dnowext disable 3DNow! extended optimizations
291 --disable-mmx disable MMX optimizations
292 --disable-mmxext disable MMXEXT optimizations
293 --disable-sse disable SSE optimizations
294 --disable-sse2 disable SSE2 optimizations
295 --disable-sse3 disable SSE3 optimizations
296 --disable-ssse3 disable SSSE3 optimizations
297 --disable-sse4 disable SSE4 optimizations
298 --disable-sse42 disable SSE4.2 optimizations
299 --disable-avx disable AVX optimizations
300 --disable-xop disable XOP optimizations
301 --disable-fma3 disable FMA3 optimizations
302 --disable-fma4 disable FMA4 optimizations
303 --disable-avx2 disable AVX2 optimizations
304 --disable-armv5te disable armv5te optimizations
305 --disable-armv6 disable armv6 optimizations
306 --disable-armv6t2 disable armv6t2 optimizations
307 --disable-vfp disable VFP optimizations
308 --disable-neon disable NEON optimizations
309 --disable-inline-asm disable use of inline assembly
310 --disable-yasm disable use of nasm/yasm assembly
312 Developer options (useful when working on Libav itself):
313 --disable-debug disable debugging symbols
314 --enable-debug=LEVEL set the debug level [$debuglevel]
315 --disable-optimizations disable compiler optimizations
316 --enable-extra-warnings enable more compiler warnings
317 --samples=PATH location of test samples for FATE, if not set use
318 \$LIBAV_SAMPLES at make invocation time.
319 --enable-neon-clobber-test check NEON registers for clobbering (should be
320 used only for debugging purposes)
321 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
322 should be used only for debugging purposes)
323 --enable-random randomly enable/disable components
325 --enable-random=LIST randomly enable/disable specific components or
326 --disable-random=LIST component groups. LIST is a comma-separated list
327 of NAME[:PROB] entries where NAME is a component
328 (group) and PROB the probability associated with
330 --random-seed=VALUE seed value for --enable/disable-random
331 --disable-valgrind-backtrace do not print a backtrace under Valgrind
332 (only applies to --disable-optimizations builds)
334 NOTE: Object files are built at the place where configure is launched.
342 echo "$@" >> $logfile
349 printf '%5s %s\n' "${i}" "${line}"
351 done < $1 >> $logfile
362 WARNINGS
="${WARNINGS}WARNING: $*\n"
369 If you think configure made a mistake, make sure you are using the latest
370 version from Git. If the latest version fails, report the problem to the
371 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
373 if disabled logging
; then
375 Rerun configure with logging enabled (do not use --disable-logging), and
376 include the log this produces with your report.
380 Include the log file "$logfile" produced by configure as this will help
387 # Avoid locale weirdness, besides we really just want to translate ASCII.
389 echo "$@" |
tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
393 echo "$@" |
tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
397 echo "$*" |
sed 's/["\\]/\\\0/g'
401 v
=$
(echo "$1" |
sed "s/'/'\\\\''/g")
402 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v
="'$v'"
407 echo "$@" |
sed 's/^ *//;s/ */ /g;s/ *$//'
414 eval "case $v in $pat) echo $v ;; esac"
422 eval "case $v in $pat) ;; *) echo $v ;; esac"
429 for v
; do eval $m; done
435 for v
; do echo ${v}${suffix}; done
450 eval : \
${$var:=$value}
455 echo $@ |
sed 's/[^A-Za-z0-9_]/_/g'
461 eval $
(sanitize_var_name
"$var")='$*'
465 eval echo \$$
(sanitize_var_name
"$1")
470 eval level
=\
${${pvar}_level
:=0}
471 eval ${pvar}_
${level}="\$$pvar"
472 eval ${pvar}_level
=$
(($level+1))
478 eval level
=\
${${pvar}_level
:-0}
479 test $level = 0 && continue
480 eval level
=$
(($level-1))
481 eval $pvar="\${${pvar}_${level}}"
482 eval ${pvar}_level
=$level
483 eval unset ${pvar}_
${level}
493 eval test "x\$${var#!}_requested" = "xyes" && die
"${var%%_*} cannot be enabled"
512 enable $
(echo "$var" |
sed 's/[^A-Za-z0-9_]/_/g')
518 disable $
(echo "$var" |
sed 's/[^A-Za-z0-9_]/_/g')
524 enabled
$var && continue
525 eval sel
="\$${var}_select"
526 eval sgs
="\$${var}_suggest"
530 enable_deep_weak
$sgs
542 disabled
$var && continue
550 do_enable_deep_force
(){
552 enabled
$var && continue
553 eval sel
="\$${var}_deps\ \$${var}_deps_any\ \$${var}_select\ \$${var}_suggest\ \$${var}_select_any"
555 enable_deep_force
$sel
561 do_enable_deep_force $
*
563 is_in
$var $ALL_COMPONENTS $COMPONENT_LIST $LIBRARY_LIST && enable $var
568 disable $
* # force the refresh of the dependencies
570 enable ${var}_requested
577 test "${1#!}" = "$1" && op
== || op
=!=
578 eval test "x\$${1#!}" $op "xyes"
582 test "${1#!}" = "$1" && op
== || op
=!=
583 eval test "x\$${1#!}" $op "xno"
588 enabled
$opt ||
return 1
594 disabled
$opt ||
return 1
600 enabled
$opt && return 0
606 disabled
$opt && return 0
613 eval : \
${$opt:=\$${opt}_default
}
621 [ $var = $value ] && return 0
629 enabled
${cfg}_checking
&& die
"Circular dependency for $cfg."
630 disabled
${cfg}_checking
&& continue
631 enable ${cfg}_checking
634 eval dep_all
="\$${cfg}_deps"
635 eval dep_any
="\$${cfg}_deps_any\ \$${cfg}_select_any"
636 eval dep_sel
="\$${cfg}_select"
637 eval dep_sgs
="\$${cfg}_suggest"
638 eval dep_ifa
="\$${cfg}_if"
639 eval dep_ifn
="\$${cfg}_if_any"
641 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
642 do_check_deps
$dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
643 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
645 [ -n
"$dep_ifa" ] && { enabled_all
$dep_ifa && enable_weak
$cfg; }
646 [ -n
"$dep_ifn" ] && { enabled_any
$dep_ifn && enable_weak
$cfg; }
647 enabled_all
$dep_all || disable
$cfg
648 enabled_any
$dep_any || disable
$cfg
649 disabled_any
$dep_sel && disable
$cfg
651 if enabled
$cfg; then
653 enable_deep_weak
$dep_sgs
656 disable
${cfg}_checking
665 for cfg
in $allopts; do
666 enabled
$cfg ||
continue
667 eval dep_extralibs
="\$${cfg}_extralibs"
668 test -n
"$dep_extralibs" && add_extralibs
$dep_extralibs
676 map
'eval echo "$v \${$v:-no}"' "$@" |
677 awk "BEGIN { split(\"$files\", files) }
679 c = \"$pfx\" toupper(\$1);
685 if (file ~ /\\.h\$/) {
686 printf(\"#define %s %d\\n\", c, v) >>file;
687 } else if (file ~ /\\.asm\$/) {
688 printf(\"%%define %s %d\\n\", c, v) >>file;
689 } else if (file ~ /\\.mak\$/) {
690 n = -v ? \"\" : \"!\";
691 printf(\"%s%s=yes\\n\", n, c) >>file;
701 enabled
$v && printf "%s\n" ${v%$suf};
708 eval "$var=\"\$$var $*\""
714 eval "$var=\"$* \$$var\""
720 for tok
in $
(eval echo \$
$var); do
721 uniq_list
="$(filter_out $tok $uniq_list) $tok"
723 eval "$var=\"${uniq_list}\""
731 append CFLAGS $
($cflags_filter "$@")
735 append ASFLAGS $
($asflags_filter "$@")
739 append OBJCFLAGS $
($objcflags_filter "$@")
743 append LDFLAGS $
($ldflags_filter "$@")
747 append LDEXEFLAGS $
($ldflags_filter "$@")
751 append STRIPFLAGS
"$@"
755 prepend extralibs $
($ldflags_filter "$@")
759 append host_cppflags
"$@"
763 append host_cflags $
($host_cflags_filter "$@")
767 append host_ldflags $
($host_ldflags_filter "$@")
771 append compat_objs
$1
773 map
'add_cppflags -D$v' "$@"
778 "$@" >> $logfile 2>&1
782 eval printf '%s\\n' $CC_O
786 eval printf '%s\\n' $CC_E
793 check_cmd
$cc $CPPFLAGS $CFLAGS "$@" $CC_C $
(cc_o
$TMPO) $TMPC
800 check_cmd
$objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $
(cc_o
$TMPO) $TMPC
807 check_cmd
$cc $CPPFLAGS $CFLAGS "$@" $
(cc_e
$TMPO) $TMPC
811 eval printf '%s\\n' $AS_O
818 check_cmd
$as $CPPFLAGS $ASFLAGS "$@" $AS_C $
(as_o
$TMPO) $TMPS
822 log check_inline_asm
"$@"
827 check_cc
"$@" <<EOF && enable $name
828 void foo(void){ __asm__ volatile($code); }
834 check_inline_asm
${1}_inline
"\"$2\""
835 echo "$2" | check_as
&& enable ${1}_external || disable
${1}_external
843 check_cmd
$yasmexe $YASMFLAGS "$@" -o
$TMPO $TMPS
847 eval printf '%s\\n' $LD_O
852 flags
=$
(filter_out
'-l*' "$@")
853 libs
=$
(filter
'-l*' "$@")
854 check_cc $
($cflags_filter $flags) ||
return
855 flags
=$
($ldflags_filter $flags)
856 libs
=$
($ldflags_filter $libs)
857 check_cmd
$ld $LDFLAGS $flags $
(ld_o
$TMPE) $TMPO $libs $extralibs
862 test "${hdr%.h}" = "${hdr}" &&
863 echo "#include $hdr" ||
864 echo "#include <$hdr>"
874 for hdr
in $headers; do
877 echo "int main(void) { $code; return 0; }"
878 } | check_
$check "$@"
882 log check_cppflags
"$@"
883 check_cc
"$@" <<EOF && append CPPFLAGS "$@"
890 set -- $
($cflags_filter "$@")
897 log check_cflags
"$@"
898 test_cflags
"$@" && add_cflags
"$@"
903 set -- $
($cflags_filter "$@")
904 check_objcc
"$@" <<EOF
910 log check_cflags
"$@"
911 test_objcflags
"$@" && add_objcflags
"$@"
915 log test_ldflags
"$@"
917 int main(void){ return 0; }
922 log check_ldflags
"$@"
923 test_ldflags
"$@" && add_ldflags
"$@"
927 log test_stripflags
"$@"
928 # call check_cc to get a fresh TMPO
930 int main(void) { return 0; }
932 check_cmd
$strip $STRIPFLAGS "$@" $TMPO
936 log check_stripflags
"$@"
937 test_stripflags
"$@" && add_stripflags
"$@"
941 log check_header
"$@"
945 check_cpp
"$@" <<EOF && enable_safe $header
956 check_ld
"$@" <<EOF && enable $func
958 int main(void){ $func(); }
963 log check_mathfunc
"$@"
967 test $narg = 2 && args
="f, g" || args
="f"
969 check_ld
"$@" <<EOF && enable $func
971 float foo(float f, float g) { return $func($args); }
972 int main(void){ return 0; }
976 check_func_headers
(){
977 log check_func_headers
"$@"
982 for hdr
in $headers; do
985 for func
in $funcs; do
986 echo "long check_$func(void) { return (long) $func; }"
988 echo "int main(void) { return 0; }"
989 } | check_ld
"$@" && enable $funcs && enable_safe
$headers
992 check_cpp_condition
(){
993 log check_cpp_condition
"$@"
1000 #error "unsatisfied condition: $condition"
1010 check_header
$header && check_func
$func "$@" && add_extralibs
"$@"
1018 check_func_headers
"$headers" "$funcs" "$@" && add_extralibs
"$@"
1022 log check_pkg_config
"$@"
1027 check_cmd
$pkg_config --exists
--print-errors
$pkg ||
return
1028 pkg_cflags
=$
($pkg_config --cflags
$pkg_config_flags $pkg)
1029 pkg_libs
=$
($pkg_config --libs
$pkg_config_flags $pkg)
1030 check_func_headers
"$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1031 set_safe
"${pkg}_cflags" $pkg_cflags &&
1032 set_safe
"${pkg}_libs" $pkg_libs
1036 check_ld
"$@" && { enabled cross_compile ||
$TMPE >> $logfile 2>&1; }
1042 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1043 # are safe but may not be available everywhere. Thus we use
1044 # raise(SIGTERM) instead. The check is run in a subshell so we
1045 # can redirect the "Terminated" message from the shell. SIGBUS
1046 # is not defined by standard C so it is used conditionally.
1048 (check_exec
"$@") >> $logfile 2>&1 <<EOF
1050 static void sighandler(int sig){
1056 int (*func_ptr)(void) = foo;
1058 signal(SIGILL, sighandler);
1059 signal(SIGFPE, sighandler);
1060 signal(SIGSEGV, sighandler);
1062 signal(SIGBUS, sighandler);
1074 disable_safe
"$type"
1075 check_code cc
"$headers" "$type v" "$@" && enable_safe
"$type"
1079 log check_struct
"$@"
1084 disable_safe
"${struct}_${member}"
1085 check_code cc
"$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1086 enable_safe
"${struct}_${member}"
1090 log check_builtin
"$@"
1096 check_code ld
"$headers" "$builtin" "$@" && enable "$name"
1099 check_compile_assert
(){
1100 log check_compile_assert
"$@"
1106 check_code cc
"$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1114 check_lib
$header $func "$@" || die
"ERROR: $name not found"
1122 check_lib2
"$headers" $func "$@" || die
"ERROR: $name not found"
1125 require_pkg_config
(){
1127 check_pkg_config
"$@" || die
"ERROR: $pkg not found"
1128 add_cflags $
(get_safe
"${pkg}_cflags")
1129 add_extralibs $
(get_safe
"${pkg}_libs")
1133 eval printf '%s\\n' $HOSTCC_E
1137 eval printf '%s\\n' $HOSTCC_O
1141 log check_host_cc
"$@"
1144 check_cmd
$host_cc $host_cflags "$@" $HOSTCC_C $
(hostcc_o
$TMPO) $TMPC
1148 log check_host_cpp
"$@"
1151 check_cmd
$host_cc $host_cppflags $host_cflags "$@" $
(hostcc_e
$TMPO) $TMPC
1154 check_host_cppflags
(){
1155 log check_host_cppflags
"$@"
1156 check_host_cc
"$@" <<EOF && append host_cppflags "$@"
1161 check_host_cflags
(){
1162 log check_host_cflags
"$@"
1163 set -- $
($host_cflags_filter "$@")
1164 check_host_cc
"$@" <<EOF && append host_cflags "$@"
1169 check_host_cpp_condition
(){
1170 log check_host_cpp_condition
"$@"
1174 check_host_cpp
"$@" <<EOF
1177 #error "unsatisfied condition: $condition"
1185 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" ||
rm "$file.tmp"
1189 cmp -s
"$1" "$2" && echo "$2 is unchanged" && return
1190 mkdir
-p
"$(dirname $2)"
1194 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1195 # system-dependent things.
1197 AVCODEC_COMPONENTS
="
1205 AVDEVICE_COMPONENTS
="
1209 AVFILTER_COMPONENTS
="
1212 AVFORMAT_COMPONENTS
="
1218 AVRESAMPLE_COMPONENTS
=""
1219 AVUTIL_COMPONENTS
=""
1223 $AVDEVICE_COMPONENTS
1224 $AVFILTER_COMPONENTS
1225 $AVFORMAT_COMPONENTS
1226 $AVRESAMPLE_COMPONENTS
1232 filter_audio_example
1236 transcode_aac_example
1239 EXTERNAL_LIBRARY_LIST
="
1295 safe_bitstream_reader
1349 $EXTERNAL_LIBRARY_LIST
1414 ARCH_EXT_LIST_X86_SIMD
="
1442 $ARCH_EXT_LIST_X86_SIMD
1447 ARCH_EXT_LIST_MIPS
="
1481 sync_val_compare_and_swap
1495 AVFoundation_AVFoundation_h
1500 cdio_paranoia_paranoia_h
1501 dev_bktr_ioctl_bt848_h
1502 dev_bktr_ioctl_meteor_h
1504 dev_video_bktr_ioctl_bt848_h
1505 dev_video_meteor_ioctl_meteor_h
1513 machine_ioctl_bt848_h
1514 machine_ioctl_meteor_h
1578 GetProcessAffinityMask
1579 GetProcessMemoryInfo
1582 GetSystemTimeAsFileTime
1587 jack_port_get_latency_range
1599 SetConsoleTextAttribute
1610 TOOLCHAIN_FEATURES
="
1631 CONDITION_VARIABLE_Ptr
1634 struct_group_source_req
1635 struct_ip_mreq_source
1638 struct_rusage_ru_maxrss
1640 struct_sockaddr_sa_len
1641 struct_sockaddr_storage
1642 struct_v4l2_frmivalenum_discrete
1647 $(add_suffix _external $ARCH_EXT_LIST)
1648 $(add_suffix _inline $ARCH_EXT_LIST)
1675 # options emitted with CONFIG_ prefix but not available on the command line
1818 # code dependency declarations
1820 # architecture extensions
1825 armv8_deps
="aarch64"
1826 neon_deps_any
="aarch64 arm"
1827 intrinsics_neon_deps
="neon"
1828 vfp_deps_any
="aarch64 arm"
1831 map
'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1839 x86_64_select
="i686"
1840 x86_64_suggest
="fast_cmov"
1843 amd3dnowext_deps
="amd3dnow"
1859 mmx_external_deps
="yasm"
1860 mmx_inline_deps
="inline_asm"
1861 mmx_suggest
="mmx_external mmx_inline"
1863 for ext
in $
(filter_out mmx
$ARCH_EXT_LIST_X86_SIMD); do
1864 eval dep
=\$
${ext}_deps
1865 eval ${ext}_external_deps
='"${dep}_external"'
1866 eval ${ext}_inline_deps
='"${dep}_inline"'
1867 eval ${ext}_suggest
='"${ext}_external ${ext}_inline"'
1870 aligned_stack_if_any
="aarch64 ppc x86"
1871 fast_64bit_if_any
="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1872 fast_clz_if_any
="aarch64 alpha avr32 mips ppc x86"
1873 fast_unaligned_if_any
="aarch64 ppc x86"
1874 simd_align_16_if_any
="altivec neon sse"
1876 # system capabilities
1877 symver_if_any
="symver_asm_label symver_gnu_asm"
1878 valgrind_backtrace_deps
="!optimizations valgrind_valgrind_h"
1881 atomics_gcc_if
="sync_val_compare_and_swap"
1882 atomics_suncc_if
="atomic_cas_ptr machine_rw_barrier"
1883 atomics_win32_if
="MemoryBarrier"
1884 atomics_native_if_any
="$ATOMICS_LIST"
1885 w32threads_deps
="atomics_native"
1886 threads_if_any
="$THREADS_LIST"
1890 dirac_parse_select
="golomb"
1891 error_resilience_select
="me_cmp"
1892 faandct_deps
="faan fdctdsp"
1893 faanidct_deps
="faan idctdsp"
1894 intrax8_select
="error_resilience"
1897 me_cmp_select
="fdctdsp idctdsp pixblockdsp"
1898 mpeg_er_select
="error_resilience"
1899 mpegaudio_select
="mpegaudiodsp"
1900 mpegaudiodsp_select
="dct"
1901 mpegvideo_select
="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1902 mpegvideoenc_select
="me_cmp mpegvideo pixblockdsp qpeldsp"
1903 nvenc_deps_any
="dlopen LoadLibrary"
1904 nvenc_extralibs
='$ldl'
1908 # decoders / encoders
1909 aac_decoder_select
="imdct15 mdct sinewin"
1910 aac_encoder_select
="audio_frame_queue iirfilter mdct sinewin"
1911 aac_latm_decoder_select
="aac_decoder aac_latm_parser"
1912 ac3_decoder_select
="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1913 ac3_encoder_select
="ac3dsp audiodsp mdct me_cmp"
1914 ac3_fixed_encoder_select
="ac3dsp audiodsp mdct me_cmp"
1915 adpcm_g722_decoder_select
="g722dsp"
1916 adpcm_g722_encoder_select
="g722dsp"
1917 aic_decoder_select
="golomb idctdsp"
1918 alac_encoder_select
="lpc"
1919 als_decoder_select
="bswapdsp"
1920 amrnb_decoder_select
="lsp"
1921 amrwb_decoder_select
="lsp"
1922 amv_decoder_select
="sp5x_decoder"
1923 ape_decoder_select
="bswapdsp"
1924 asv1_decoder_select
="blockdsp bswapdsp idctdsp"
1925 asv1_encoder_select
="bswapdsp fdctdsp pixblockdsp"
1926 asv2_decoder_select
="blockdsp bswapdsp idctdsp"
1927 asv2_encoder_select
="bswapdsp fdctdsp pixblockdsp"
1928 atrac1_decoder_select
="mdct sinewin"
1929 atrac3_decoder_select
="mdct"
1930 atrac3p_decoder_select
="mdct sinewin"
1931 bink_decoder_select
="blockdsp hpeldsp"
1932 binkaudio_dct_decoder_select
="mdct rdft dct sinewin wma_freqs"
1933 binkaudio_rdft_decoder_select
="mdct rdft sinewin wma_freqs"
1934 cavs_decoder_select
="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1935 cllc_decoder_select
="bswapdsp"
1936 comfortnoise_encoder_select
="lpc"
1937 cook_decoder_select
="audiodsp mdct sinewin"
1938 cscd_decoder_select
="lzo"
1939 cscd_decoder_suggest
="zlib"
1940 dca_decoder_select
="fmtconvert mdct"
1941 dds_decoder_select
="texturedsp"
1942 dnxhd_decoder_select
="blockdsp idctdsp"
1943 dnxhd_encoder_select
="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1944 dvvideo_decoder_select
="dvprofile idctdsp"
1945 dvvideo_encoder_select
="dvprofile fdctdsp me_cmp pixblockdsp"
1946 dxa_decoder_deps
="zlib"
1947 dxv_decoder_select
="lzf texturedsp"
1948 eac3_decoder_select
="ac3_decoder"
1949 eac3_encoder_select
="ac3_encoder"
1950 eamad_decoder_select
="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1951 eatgq_decoder_select
="aandcttables idctdsp"
1952 eatqi_decoder_select
="aandcttables blockdsp bswapdsp idctdsp"
1953 exr_decoder_deps
="zlib"
1954 ffv1_decoder_select
="golomb rangecoder"
1955 ffv1_encoder_select
="rangecoder"
1956 ffvhuff_decoder_select
="huffyuv_decoder"
1957 ffvhuff_encoder_select
="huffyuv_encoder"
1958 fic_decoder_select
="golomb"
1959 flac_decoder_select
="flacdsp golomb"
1960 flac_encoder_select
="bswapdsp flacdsp golomb lpc"
1961 flashsv_decoder_deps
="zlib"
1962 flashsv_encoder_deps
="zlib"
1963 flashsv2_decoder_deps
="zlib"
1964 flv_decoder_select
="h263_decoder"
1965 flv_encoder_select
="h263_encoder"
1966 fourxm_decoder_select
="blockdsp bswapdsp"
1967 fraps_decoder_select
="bswapdsp huffman"
1968 g2m_decoder_deps
="zlib"
1969 g2m_decoder_select
="blockdsp idctdsp jpegtables"
1970 h261_decoder_select
="mpeg_er mpegvideo"
1971 h261_encoder_select
="aandcttables mpegvideoenc"
1972 h263_decoder_select
="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1973 h263_encoder_select
="aandcttables h263dsp mpegvideoenc"
1974 h263i_decoder_select
="h263_decoder"
1975 h263p_encoder_select
="h263_encoder"
1976 h264_decoder_select
="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1977 h264_decoder_suggest
="error_resilience"
1978 h264_nvenc_encoder_deps
="nvenc"
1979 h264_qsv_decoder_deps
="libmfx"
1980 h264_qsv_decoder_select
="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1981 h264_qsv_encoder_deps
="libmfx"
1982 h264_qsv_encoder_select
="qsvenc"
1983 hap_decoder_select
="snappy texturedsp"
1984 hap_encoder_deps
="libsnappy"
1985 hap_encoder_select
="texturedspenc"
1986 hevc_decoder_select
="bswapdsp cabac golomb videodsp"
1987 hevc_nvenc_encoder_deps
="nvenc"
1988 hevc_qsv_encoder_deps
="libmfx"
1989 hevc_qsv_decoder_deps
="libmfx"
1990 hevc_qsv_decoder_select
="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1991 hevc_qsv_encoder_select
="qsvenc"
1992 huffyuv_decoder_select
="bswapdsp huffyuvdsp"
1993 huffyuv_encoder_select
="bswapdsp huffman huffyuvencdsp"
1994 iac_decoder_select
="imc_decoder"
1995 imc_decoder_select
="bswapdsp fft mdct sinewin"
1996 indeo3_decoder_select
="hpeldsp"
1997 indeo4_decoder_select
="ividsp"
1998 indeo5_decoder_select
="ividsp"
1999 interplay_video_decoder_select
="hpeldsp"
2000 jpegls_decoder_select
="golomb mjpeg_decoder"
2001 jpegls_encoder_select
="golomb"
2002 jv_decoder_select
="blockdsp"
2003 lagarith_decoder_select
="huffyuvdsp"
2004 ljpeg_encoder_select
="aandcttables idctdsp jpegtables"
2005 loco_decoder_select
="golomb"
2006 mdec_decoder_select
="blockdsp idctdsp mpegvideo"
2007 metasound_decoder_select
="lsp mdct sinewin"
2008 mimic_decoder_select
="blockdsp bswapdsp hpeldsp idctdsp"
2009 mjpeg_decoder_select
="blockdsp hpeldsp idctdsp jpegtables"
2010 mjpeg_encoder_select
="aandcttables jpegtables mpegvideoenc"
2011 mjpegb_decoder_select
="mjpeg_decoder"
2012 mlp_decoder_select
="mlp_parser"
2013 motionpixels_decoder_select
="bswapdsp"
2014 mp1_decoder_select
="mpegaudio"
2015 mp1float_decoder_select
="mpegaudio"
2016 mp2_decoder_select
="mpegaudio"
2017 mp2float_decoder_select
="mpegaudio"
2018 mp3_decoder_select
="mpegaudio"
2019 mp3adu_decoder_select
="mpegaudio"
2020 mp3adufloat_decoder_select
="mpegaudio"
2021 mp3float_decoder_select
="mpegaudio"
2022 mp3on4_decoder_select
="mpegaudio"
2023 mp3on4float_decoder_select
="mpegaudio"
2024 mpc7_decoder_select
="bswapdsp mpegaudiodsp"
2025 mpc8_decoder_select
="mpegaudiodsp"
2026 mpeg_xvmc_decoder_deps
="X11_extensions_XvMClib_h"
2027 mpeg_xvmc_decoder_select
="mpeg2video_decoder"
2028 mpeg1video_decoder_select
="error_resilience mpeg_er mpegvideo"
2029 mpeg1video_encoder_select
="aandcttables mpegvideoenc"
2030 mpeg2video_decoder_select
="error_resilience mpeg_er mpegvideo"
2031 mpeg2video_encoder_select
="aandcttables mpegvideoenc"
2032 mpeg2_qsv_decoder_deps
="libmfx"
2033 mpeg2_qsv_decoder_select
="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2034 mpeg2_qsv_encoder_deps
="libmfx"
2035 mpeg2_qsv_encoder_select
="qsvenc"
2036 mpeg4_decoder_select
="h263_decoder mpeg4video_parser"
2037 mpeg4_encoder_select
="h263_encoder"
2038 msa1_decoder_select
="mss34dsp"
2039 msmpeg4v1_decoder_select
="h263_decoder"
2040 msmpeg4v2_decoder_select
="h263_decoder"
2041 msmpeg4v2_encoder_select
="h263_encoder"
2042 msmpeg4v3_decoder_select
="h263_decoder"
2043 msmpeg4v3_encoder_select
="h263_encoder"
2044 mss2_decoder_select
="error_resilience mpeg_er qpeldsp vc1_decoder"
2045 mts2_decoder_select
="mss34dsp"
2046 mxpeg_decoder_select
="mjpeg_decoder"
2047 nellymoser_decoder_select
="mdct sinewin"
2048 nellymoser_encoder_select
="audio_frame_queue mdct sinewin"
2049 nuv_decoder_select
="idctdsp lzo"
2050 nvenc_h264_encoder_deps
="nvenc"
2051 nvenc_hevc_encoder_deps
="nvenc"
2052 on2avc_decoder_select
="mdct"
2053 opus_decoder_deps
="avresample"
2054 opus_decoder_select
="imdct15"
2055 png_decoder_deps
="zlib"
2056 png_encoder_deps
="zlib"
2057 png_encoder_select
="huffyuvencdsp"
2058 prores_decoder_select
="idctdsp"
2059 prores_encoder_select
="fdctdsp"
2060 qcelp_decoder_select
="lsp"
2061 qdm2_decoder_select
="mdct rdft mpegaudiodsp"
2062 ra_144_encoder_select
="audio_frame_queue lpc"
2063 ralf_decoder_select
="golomb"
2064 rscc_decoder_deps
="zlib"
2065 rv10_decoder_select
="error_resilience h263_decoder h263dsp mpeg_er"
2066 rv10_encoder_select
="h263_encoder"
2067 rv20_decoder_select
="error_resilience h263_decoder h263dsp mpeg_er"
2068 rv20_encoder_select
="h263_encoder"
2069 rv30_decoder_select
="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2070 rv40_decoder_select
="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2071 screenpresso_decoder_deps
="zlib"
2072 shorten_decoder_select
="golomb"
2073 sipr_decoder_select
="lsp"
2074 sp5x_decoder_select
="mjpeg_decoder"
2075 svq1_decoder_select
="hpeldsp"
2076 svq1_encoder_select
="aandcttables hpeldsp me_cmp mpegvideoenc"
2077 svq3_decoder_select
="h264_decoder hpeldsp tpeldsp"
2078 svq3_decoder_suggest
="zlib"
2079 tak_decoder_select
="audiodsp"
2080 tdsc_decoder_deps
="zlib"
2081 tdsc_decoder_select
="mjpeg_decoder"
2082 theora_decoder_select
="vp3_decoder"
2083 thp_decoder_select
="mjpeg_decoder"
2084 tiff_decoder_suggest
="zlib"
2085 tiff_encoder_suggest
="zlib"
2086 truehd_decoder_select
="mlp_decoder"
2087 truemotion2_decoder_select
="bswapdsp"
2088 truespeech_decoder_select
="bswapdsp"
2089 tscc_decoder_deps
="zlib"
2090 txd_decoder_select
="texturedsp"
2091 twinvq_decoder_select
="mdct lsp sinewin"
2092 utvideo_decoder_select
="bswapdsp"
2093 utvideo_encoder_select
="bswapdsp huffman huffyuvencdsp"
2094 vble_decoder_select
="huffyuvdsp"
2095 vc1_decoder_select
="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2096 vc1image_decoder_select
="vc1_decoder"
2097 vorbis_decoder_select
="mdct"
2098 vorbis_encoder_select
="mdct"
2099 vp3_decoder_select
="hpeldsp vp3dsp videodsp"
2100 vp5_decoder_select
="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2101 vp6_decoder_select
="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2102 vp6a_decoder_select
="vp6_decoder"
2103 vp6f_decoder_select
="vp6_decoder"
2104 vp7_decoder_select
="h264pred videodsp vp8dsp"
2105 vp8_decoder_select
="h264pred videodsp vp8dsp"
2106 vp9_decoder_select
="videodsp"
2107 webp_decoder_select
="vp8_decoder"
2108 wmapro_decoder_select
="mdct sinewin wma_freqs"
2109 wmav1_decoder_select
="mdct sinewin wma_freqs"
2110 wmav1_encoder_select
="mdct sinewin wma_freqs"
2111 wmav2_decoder_select
="mdct sinewin wma_freqs"
2112 wmav2_encoder_select
="mdct sinewin wma_freqs"
2113 wmavoice_decoder_select
="lsp rdft dct mdct sinewin"
2114 wmv1_decoder_select
="h263_decoder"
2115 wmv1_encoder_select
="h263_encoder"
2116 wmv2_decoder_select
="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2117 wmv2_encoder_select
="h263_encoder wmv2dsp"
2118 wmv3_decoder_select
="vc1_decoder"
2119 wmv3image_decoder_select
="wmv3_decoder"
2120 zerocodec_decoder_deps
="zlib"
2121 zlib_decoder_deps
="zlib"
2122 zlib_encoder_deps
="zlib"
2123 zmbv_decoder_deps
="zlib"
2124 zmbv_encoder_deps
="zlib"
2126 # hardware accelerators
2127 d3d11va_deps
="d3d11_h dxva_h ID3D11VideoDecoder"
2128 dxva2_deps
="dxva2api_h DXVA2_ConfigPictureDecode"
2129 vaapi_deps
="va_va_h"
2130 vda_deps
="VideoDecodeAcceleration_VDADecoder_h pthreads"
2131 vda_extralibs
="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2132 vdpau_deps
="vdpau_vdpau_h vdpau_vdpau_x11_h"
2134 h263_vaapi_hwaccel_deps
="vaapi"
2135 h263_vaapi_hwaccel_select
="h263_decoder"
2136 h264_d3d11va_hwaccel_deps
="d3d11va"
2137 h264_d3d11va_hwaccel_select
="h264_decoder"
2138 h264_dxva2_hwaccel_deps
="dxva2"
2139 h264_dxva2_hwaccel_select
="h264_decoder"
2140 h264_mmal_decoder_deps
="mmal"
2141 h264_mmal_hwaccel_deps
="mmal"
2142 h264_mmal_decoder_select
="h264_decoder"
2143 h264_mmal_encoder_deps
="mmal"
2144 h264_qsv_hwaccel_deps
="libmfx"
2145 h264_vaapi_hwaccel_deps
="vaapi"
2146 h264_vaapi_hwaccel_select
="h264_decoder"
2147 h264_vda_hwaccel_deps
="vda"
2148 h264_vda_hwaccel_select
="h264_decoder"
2149 h264_vda_old_hwaccel_deps
="vda"
2150 h264_vda_old_hwaccel_select
="h264_decoder"
2151 h264_vdpau_hwaccel_deps
="vdpau"
2152 h264_vdpau_hwaccel_select
="h264_decoder"
2153 hevc_d3d11va_hwaccel_deps
="d3d11va DXVA_PicParams_HEVC"
2154 hevc_d3d11va_hwaccel_select
="hevc_decoder"
2155 hevc_dxva2_hwaccel_deps
="dxva2 DXVA_PicParams_HEVC"
2156 hevc_dxva2_hwaccel_select
="hevc_decoder"
2157 hevc_qsv_hwaccel_deps
="libmfx"
2158 hevc_vdpau_hwaccel_deps
="vdpau VdpPictureInfoHEVC"
2159 hevc_vdpau_hwaccep_select
="hevc_decoder"
2160 mpeg1_vdpau_hwaccel_deps
="vdpau"
2161 mpeg1_vdpau_hwaccel_select
="mpeg1video_decoder"
2162 mpeg2_d3d11va_hwaccel_deps
="d3d11va"
2163 mpeg2_d3d11va_hwaccel_select
="mpeg2video_decoder"
2164 mpeg2_dxva2_hwaccel_deps
="dxva2"
2165 mpeg2_dxva2_hwaccel_select
="mpeg2video_decoder"
2166 mpeg2_qsv_hwaccel_deps
="libmfx"
2167 mpeg2_vaapi_hwaccel_deps
="vaapi"
2168 mpeg2_vaapi_hwaccel_select
="mpeg2video_decoder"
2169 mpeg2_vdpau_hwaccel_deps
="vdpau"
2170 mpeg2_vdpau_hwaccel_select
="mpeg2video_decoder"
2171 mpeg4_vaapi_hwaccel_deps
="vaapi"
2172 mpeg4_vaapi_hwaccel_select
="mpeg4_decoder"
2173 mpeg4_vdpau_hwaccel_deps
="vdpau"
2174 mpeg4_vdpau_hwaccel_select
="mpeg4_decoder"
2175 vc1_d3d11va_hwaccel_deps
="d3d11va"
2176 vc1_d3d11va_hwaccel_select
="vc1_decoder"
2177 vc1_dxva2_hwaccel_deps
="dxva2"
2178 vc1_dxva2_hwaccel_select
="vc1_decoder"
2179 vc1_vaapi_hwaccel_deps
="vaapi"
2180 vc1_vaapi_hwaccel_select
="vc1_decoder"
2181 vc1_vdpau_hwaccel_deps
="vdpau"
2182 vc1_vdpau_hwaccel_select
="vc1_decoder"
2183 wmv3_d3d11va_hwaccel_select
="vc1_d3d11va_hwaccel"
2184 wmv3_dxva2_hwaccel_select
="vc1_dxva2_hwaccel"
2185 wmv3_vaapi_hwaccel_select
="vc1_vaapi_hwaccel"
2186 wmv3_vdpau_hwaccel_select
="vc1_vdpau_hwaccel"
2189 h264_parser_select
="h264_decoder"
2190 hevc_parser_select
="golomb"
2191 mpegvideo_parser_select
="mpegvideo"
2192 mpeg4video_parser_select
="error_resilience h263dsp mpegvideo qpeldsp"
2193 vc1_parser_select
="mpegvideo startcode vc1_decoder"
2196 mjpeg2jpeg_bsf_select
="jpegtables"
2198 # external libraries
2199 libdcadec_decoder_deps
="libdcadec"
2200 libfaac_encoder_deps
="libfaac"
2201 libfaac_encoder_select
="audio_frame_queue"
2202 libfdk_aac_decoder_deps
="libfdk_aac"
2203 libfdk_aac_encoder_deps
="libfdk_aac"
2204 libfdk_aac_encoder_select
="audio_frame_queue"
2205 libgsm_decoder_deps
="libgsm"
2206 libgsm_encoder_deps
="libgsm"
2207 libgsm_ms_decoder_deps
="libgsm"
2208 libgsm_ms_encoder_deps
="libgsm"
2209 libilbc_decoder_deps
="libilbc"
2210 libilbc_encoder_deps
="libilbc"
2211 libkvazaar_encoder_deps
="libkvazaar"
2212 libmp3lame_encoder_deps
="libmp3lame"
2213 libmp3lame_encoder_select
="audio_frame_queue"
2214 libopencore_amrnb_decoder_deps
="libopencore_amrnb"
2215 libopencore_amrnb_encoder_deps
="libopencore_amrnb"
2216 libopencore_amrnb_encoder_select
="audio_frame_queue"
2217 libopencore_amrwb_decoder_deps
="libopencore_amrwb"
2218 libopenh264_encoder_deps
="libopenh264"
2219 libopenjpeg_decoder_deps
="libopenjpeg"
2220 libopenjpeg_encoder_deps
="libopenjpeg"
2221 libopus_decoder_deps
="libopus"
2222 libopus_encoder_deps
="libopus"
2223 libopus_encoder_select
="audio_frame_queue"
2224 libschroedinger_decoder_deps
="libschroedinger"
2225 libschroedinger_encoder_deps
="libschroedinger"
2226 libspeex_decoder_deps
="libspeex"
2227 libspeex_encoder_deps
="libspeex"
2228 libspeex_encoder_select
="audio_frame_queue"
2229 libtheora_encoder_deps
="libtheora"
2230 libtwolame_encoder_deps
="libtwolame"
2231 libvo_aacenc_encoder_deps
="libvo_aacenc"
2232 libvo_aacenc_encoder_select
="audio_frame_queue"
2233 libvo_amrwbenc_encoder_deps
="libvo_amrwbenc"
2234 libvorbis_encoder_deps
="libvorbis"
2235 libvorbis_encoder_select
="audio_frame_queue"
2236 libvpx_vp8_decoder_deps
="libvpx"
2237 libvpx_vp8_encoder_deps
="libvpx"
2238 libvpx_vp9_decoder_deps
="libvpx"
2239 libvpx_vp9_encoder_deps
="libvpx"
2240 libwavpack_encoder_deps
="libwavpack"
2241 libwebp_encoder_deps
="libwebp"
2242 libx262_encoder_deps
="libx262"
2243 libx264_encoder_deps
="libx264"
2244 libx265_encoder_deps
="libx265"
2245 libxavs_encoder_deps
="libxavs"
2246 libxvid_encoder_deps
="libxvid"
2249 ac3_demuxer_select
="ac3_parser"
2250 asf_demuxer_select
="riffdec"
2251 asf_muxer_select
="riffenc"
2252 asf_stream_muxer_select
="asf_muxer"
2253 avi_demuxer_select
="iso_media riffdec"
2254 avi_muxer_select
="riffenc"
2255 avisynth_demuxer_deps
="avisynth"
2256 avisynth_demuxer_select
="riffdec"
2257 caf_demuxer_select
="iso_media riffdec"
2258 dash_muxer_select
="mp4_muxer"
2259 dirac_demuxer_select
="dirac_parser"
2260 dv_demuxer_select
="dvprofile"
2261 dv_muxer_select
="dvprofile"
2262 dxa_demuxer_select
="riffdec"
2263 eac3_demuxer_select
="ac3_parser"
2264 f4v_muxer_select
="mov_muxer"
2265 flac_demuxer_select
="flac_parser"
2266 hds_muxer_select
="flv_muxer"
2267 hls_muxer_select
="mpegts_muxer"
2268 ipod_muxer_select
="mov_muxer"
2269 ismv_muxer_select
="mov_muxer"
2270 matroska_audio_muxer_select
="matroska_muxer"
2271 matroska_demuxer_select
="iso_media riffdec"
2272 matroska_demuxer_suggest
="bzlib lzo zlib"
2273 matroska_muxer_select
="iso_media riffenc"
2274 mmf_muxer_select
="riffenc"
2275 mov_demuxer_select
="iso_media riffdec"
2276 mov_demuxer_suggest
="zlib"
2277 mov_muxer_select
="iso_media riffenc rtpenc_chain"
2278 mp3_demuxer_select
="mpegaudio_parser"
2279 mp4_muxer_select
="mov_muxer"
2280 mpegts_demuxer_select
="iso_media"
2281 mpegts_muxer_select
="adts_muxer latm_muxer"
2282 mpegtsraw_demuxer_select
="mpegts_demuxer"
2283 mxf_d10_muxer_select
="mxf_muxer"
2284 nut_muxer_select
="riffenc"
2285 nuv_demuxer_select
="riffdec"
2286 oga_muxer_select
="ogg_muxer"
2287 ogg_demuxer_select
="dirac_parse"
2288 opus_muxer_select
="ogg_muxer"
2289 psp_muxer_select
="mov_muxer"
2290 rtp_demuxer_select
="sdp_demuxer"
2291 rtpdec_select
="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2292 rtsp_demuxer_select
="http_protocol rtpdec"
2293 rtsp_muxer_select
="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2294 sap_demuxer_select
="sdp_demuxer"
2295 sap_muxer_select
="rtp_muxer rtp_protocol rtpenc_chain"
2296 sdp_demuxer_select
="rtpdec"
2297 smoothstreaming_muxer_select
="ismv_muxer"
2298 spdif_muxer_select
="aac_parser"
2299 spx_muxer_select
="ogg_muxer"
2300 swf_demuxer_suggest
="zlib"
2301 tak_demuxer_select
="tak_parser"
2302 tg2_muxer_select
="mov_muxer"
2303 tgp_muxer_select
="mov_muxer"
2304 w64_demuxer_select
="wav_demuxer"
2305 wav_demuxer_select
="riffdec"
2306 wav_muxer_select
="riffenc"
2307 webm_muxer_select
="iso_media riffenc"
2308 webm_muxer_suggest
="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2309 wtv_demuxer_select
="mpegts_demuxer riffdec"
2310 xmv_demuxer_select
="riffdec"
2311 xwma_demuxer_select
="riffdec"
2314 alsa_indev_deps
="alsa_asoundlib_h snd_pcm_htimestamp"
2315 alsa_outdev_deps
="alsa_asoundlib_h"
2316 avfoundation_indev_deps
="AVFoundation_AVFoundation_h"
2317 bktr_indev_deps_any
="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2318 dv1394_indev_deps
="dv1394"
2319 dv1394_indev_select
="dv_demuxer"
2320 fbdev_indev_deps
="linux_fb_h"
2321 jack_indev_deps
="jack_jack_h pthreads"
2322 libcdio_indev_deps
="libcdio"
2323 libdc1394_indev_deps
="libdc1394"
2324 oss_indev_deps_any
="soundcard_h sys_soundcard_h"
2325 oss_outdev_deps_any
="soundcard_h sys_soundcard_h"
2326 pulse_indev_deps
="libpulse"
2327 sndio_indev_deps
="sndio_h"
2328 sndio_outdev_deps
="sndio_h"
2329 v4l2_indev_deps_any
="linux_videodev2_h sys_videoio_h"
2330 vfwcap_indev_deps
="capCreateCaptureWindow vfwcap_defines"
2331 vfwcap_indev_extralibs
="-lavicap32"
2332 x11grab_indev_deps
="x11grab"
2333 x11grab_xcb_indev_deps
="libxcb"
2336 ffrtmpcrypt_protocol_deps
="!librtmp_protocol"
2337 ffrtmpcrypt_protocol_deps_any
="gcrypt gmp openssl"
2338 ffrtmpcrypt_protocol_select
="tcp_protocol"
2339 ffrtmphttp_protocol_deps
="!librtmp_protocol"
2340 ffrtmphttp_protocol_select
="http_protocol"
2341 gopher_protocol_select
="network"
2342 http_protocol_select
="tcp_protocol"
2343 httpproxy_protocol_select
="tcp_protocol"
2344 https_protocol_select
="tls_protocol"
2345 icecast_protocol_select
="http_protocol"
2346 librtmp_protocol_deps
="librtmp"
2347 librtmpe_protocol_deps
="librtmp"
2348 librtmps_protocol_deps
="librtmp"
2349 librtmpt_protocol_deps
="librtmp"
2350 librtmpte_protocol_deps
="librtmp"
2351 mmsh_protocol_select
="http_protocol"
2352 mmst_protocol_select
="network"
2353 rtmp_protocol_deps
="!librtmp_protocol"
2354 rtmp_protocol_select
="tcp_protocol"
2355 rtmpe_protocol_select
="ffrtmpcrypt_protocol"
2356 rtmps_protocol_deps
="!librtmp_protocol"
2357 rtmps_protocol_select
="tls_protocol"
2358 rtmpt_protocol_select
="ffrtmphttp_protocol"
2359 rtmpte_protocol_select
="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2360 rtmpts_protocol_select
="ffrtmphttp_protocol https_protocol"
2361 rtp_protocol_select
="udp_protocol"
2362 sctp_protocol_deps
="struct_sctp_event_subscribe"
2363 sctp_protocol_select
="network"
2364 srtp_protocol_select
="rtp_protocol"
2365 tcp_protocol_select
="network"
2366 tls_gnutls_protocol_deps
="gnutls"
2367 tls_gnutls_protocol_select
="tcp_protocol"
2368 tls_openssl_protocol_deps
="openssl !tls_gnutls_protocol"
2369 tls_openssl_protocol_select
="tcp_protocol"
2370 tls_protocol_select_any
="tls_gnutls_protocol tls_openssl_protocol"
2371 udp_protocol_select
="network"
2372 unix_protocol_deps
="sys_un_h"
2373 unix_protocol_select
="network"
2376 blackframe_filter_deps
="gpl"
2377 boxblur_filter_deps
="gpl"
2378 bs2b_filter_deps
="libbs2b"
2379 cropdetect_filter_deps
="gpl"
2380 delogo_filter_deps
="gpl"
2381 drawtext_filter_deps
="libfreetype"
2382 frei0r_filter_deps
="frei0r dlopen"
2383 frei0r_filter_extralibs
='$ldl'
2384 frei0r_src_filter_deps
="frei0r dlopen"
2385 frei0r_src_filter_extralibs
='$ldl'
2386 hqdn3d_filter_deps
="gpl"
2387 hwupload_cuda_filter_deps
="cuda"
2388 interlace_filter_deps
="gpl"
2389 ocv_filter_deps
="libopencv"
2390 resample_filter_deps
="avresample"
2391 scale_filter_deps
="swscale"
2394 avcodec_example_deps
="avcodec avutil"
2395 filter_audio_example_deps
="avfilter avutil"
2396 metadata_example_deps
="avformat avutil"
2397 output_example_deps
="avcodec avformat avutil swscale"
2398 qsvdec_example_deps
="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2399 transcode_aac_example_deps
="avcodec avformat avresample"
2401 # libraries, in linking order
2402 avcodec_deps
="avutil"
2403 avdevice_deps
="avformat avcodec avutil"
2404 avfilter_deps
="avutil"
2405 avformat_deps
="avcodec avutil"
2406 avresample_deps
="avutil"
2407 swscale_deps
="avutil"
2410 avconv_deps
="avcodec avfilter avformat avresample swscale"
2411 avconv_select
="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2412 fps_filter null_filter resample_filter scale_filter
2413 setpts_filter trim_filter"
2414 avplay_deps
="avcodec avfilter avformat avresample sdl"
2415 avplay_libs
='$sdl_libs'
2416 avplay_select
="rdft format_filter transpose_filter hflip_filter vflip_filter"
2417 avprobe_deps
="avcodec avformat"
2421 texi2html_deps
="doc"
2423 # default parameters
2425 logfile
="config.log"
2427 # installation paths
2428 prefix_default
="/usr/local"
2429 bindir_default
='${prefix}/bin'
2430 datadir_default
='${prefix}/share/avconv'
2431 docdir_default
='${prefix}/share/doc/libav'
2432 incdir_default
='${prefix}/include'
2433 libdir_default
='${prefix}/lib'
2434 mandir_default
='${prefix}/share/man'
2435 shlibdir_default
="$libdir_default"
2440 host_cc_default
="gcc"
2445 pkg_config_default
=pkg-config
2451 arch_default
=$
(uname
-m
)
2456 target_os_default
=$
(tolower $
(uname
-s
))
2457 host_os
=$target_os_default
2459 # configurable options
2463 enable faan faandct faanidct
2464 enable optimizations
2465 enable safe_bitstream_reader
2467 enable swscale_alpha
2468 enable valgrind_backtrace
2470 # By default, enable only those hwaccels that have no external dependencies.
2471 enable d3d11va dxva2 vda vdpau
2474 SHFLAGS
='-shared -Wl,-soname,$$(@F)'
2477 FULLNAME
='$(NAME)$(BUILDSUF)'
2478 LIBNAME
='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2481 SLIBNAME
='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2482 SLIBNAME_WITH_VERSION
='$(SLIBNAME).$(LIBVERSION)'
2483 SLIBNAME_WITH_MAJOR
='$(SLIBNAME).$(LIBMAJOR)'
2484 LIB_INSTALL_EXTRA_CMD
='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2485 SLIB_INSTALL_NAME
='$(SLIBNAME_WITH_VERSION)'
2486 SLIB_INSTALL_LINKS
='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2509 host_cflags_filter
=echo
2510 host_ldflags_filter
=echo
2512 target_path
='$(CURDIR)'
2514 # since the object filename is not given with the -MM flag, the compiler
2515 # is only able to print the basename, and we must add the path ourselves
2516 DEPCMD
='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2520 if test -f configure
; then
2523 source_path
=$
(cd $
(dirname "$0"); pwd)
2524 echo "$source_path" |
grep -q
'[[:blank:]]' &&
2525 die
"Out of tree builds are impossible with whitespace in source path."
2526 test -e
"$source_path/config.h" &&
2527 die
"Out of tree builds are impossible with config.h in source dir."
2534 LIBAV_CONFIGURATION
="${LIBAV_CONFIGURATION# } ${l}${r}"
2540 file=$source_path/$3
2541 sed -n
"s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2544 ENCODER_LIST
=$
(find_things encoder ENC libavcodec
/allcodecs.c
)
2545 DECODER_LIST
=$
(find_things decoder DEC libavcodec
/allcodecs.c
)
2546 HWACCEL_LIST
=$
(find_things hwaccel HWACCEL libavcodec
/allcodecs.c
)
2547 PARSER_LIST
=$
(find_things parser PARSER libavcodec
/allcodecs.c
)
2548 BSF_LIST
=$
(find_things bsf BSF libavcodec
/allcodecs.c
)
2549 MUXER_LIST
=$
(find_things muxer _MUX libavformat
/allformats.c
)
2550 DEMUXER_LIST
=$
(find_things demuxer DEMUX libavformat
/allformats.c
)
2551 OUTDEV_LIST
=$
(find_things outdev OUTDEV libavdevice
/alldevices.c
)
2552 INDEV_LIST
=$
(find_things indev _IN libavdevice
/alldevices.c
)
2553 PROTOCOL_LIST
=$
(find_things protocol PROTOCOL libavformat
/allformats.c
)
2554 FILTER_LIST
=$
(find_things filter FILTER libavfilter
/allfilters.c
)
2570 enable $ARCH_EXT_LIST
2573 echo "Unknown option \"$1\"."
2574 echo "See $0 --help for available options."
2579 printf "%-25s %-25s %-25s\n" $
(cat |
tr ' ' '\n' |
sort)
2585 echo $
* |
sed s
/$suffix//g | print_3_columns
2597 is_in
${comp} $COMPONENT_LIST && eval comp
=\$$
(toupper
${comp%s})_LIST
2598 echo "prob ${prob:-0.5}"
2606 random_seed
=$
(awk "BEGIN { srand($random_seed); print srand() }")
2607 $action $
(rand_list
"$@" |
awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2616 --extra-ldexeflags
=*)
2617 add_ldexeflags
$optval
2620 add_extralibs
$optval
2623 disable
$INDEV_LIST $OUTDEV_LIST
2626 debuglevel
="$optval"
2629 disable
$PROGRAM_LIST
2631 --disable-everything
)
2632 map
'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2633 enable_deep_force
$EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2636 map
'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2637 disable
$LIBRARY_LIST $PROGRAM_LIST doc
2639 --enable-random|
--disable-random
)
2640 action
=${opt%%-random}
2641 do_random
${action#--} $COMPONENT_LIST
2643 --enable-random
=*|
--disable-random
=*)
2644 action
=${opt%%-random=*}
2645 do_random
${action#--} $optval
2647 --enable-
*=*|
--disable-
*=*)
2648 eval $
(echo "${opt%%=*}" |
sed 's/--/action=/;s/-/ thing=/')
2649 is_in
"${thing}s" $COMPONENT_LIST || die_unknown
"$opt"
2650 eval list
=\$$
(toupper
$thing)_LIST
2651 name
=$
(echo "${optval}" |
sed "s/,/_${thing}|/g")_
${thing}
2652 test $action = enable && action
="request"
2653 $action $
(filter
"$name" $list)
2655 --enable-avserver|
--disable-avserver
*)
2656 warn
"avserver has been removed, the ${opt} option is only"\
2657 "provided for compatibility and will be removed in the future"
2659 --enable-?
*|
--disable-?
*)
2660 eval $
(echo "$opt" |
sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2661 if is_in
$option $COMPONENT_LIST; then
2662 test $action = enable && action
="enable_deep_force"
2663 eval $action \$$
(toupper
${option%s})_LIST
2664 elif is_in
$option $CMDLINE_SELECT; then
2665 test $action = enable && action
="request"
2672 NAME
="${opt#--list-}"
2673 is_in
$NAME $COMPONENT_LIST || die_unknown
$opt
2675 eval show_list
$NAME \$$
(toupper
$NAME)_LIST
2677 --help|
-h
) show_help
2680 optname
="${opt%%=*}"
2681 optname
="${optname#--}"
2682 optname
=$
(echo "$optname" |
sed 's/-/_/g')
2683 if is_in
$optname $CMDLINE_SET; then
2684 eval $optname='$optval'
2685 elif is_in
$optname $CMDLINE_APPEND; then
2686 append
$optname "$optval"
2698 disabled logging
&& logfile
=/dev
/null
2700 # Enable the default components if not disabled explicitly
2702 enable_weak
$EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2704 # Disable all the library-specific components if the library itself
2705 # is disabled, see AVCODEC_LIST and following _LIST variables.
2707 disable_components
(){
2708 disabled
${1} && disable_weak $
(
2709 eval components
="\$$(toupper ${1})_COMPONENTS"
2710 map
'eval echo \${$(toupper ${v%s})_LIST}' $components
2714 map
'disable_components $v' $LIBRARY_LIST
2716 # Mark components that had not been enabled/disabled explicitly
2719 for n
in $COMPONENT_LIST; do
2720 v
=$
(toupper
${n%s})_LIST
2721 eval enable_weak \$
$v
2722 eval ${n}_if_any
="\$$v"
2725 # Make so that disabled libraries are enabled if a component
2726 # of them is requested
2728 for n
in $LIBRARY_LIST; do
2729 v
=$
(toupper
${n})_COMPONENTS
2730 eval ${n}_if_any
="\$$v"
2733 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2736 case "$toolchain" in
2738 cc_default
="${toolchain%-asan}"
2739 add_cflags
-fsanitize
=address
2740 add_ldflags
-fsanitize
=address
2743 cc_default
="${toolchain%-tsan}"
2744 add_cflags
-fsanitize
=thread
-pie
2745 add_ldflags
-fsanitize
=thread
-pie
2746 case "$toolchain" in
2754 cc_default
="${toolchain%-usan}"
2755 add_cflags
-fsanitize
=undefined
2756 add_ldflags
-fsanitize
=undefined
2757 case "$toolchain" in
2764 target_exec_default
="valgrind"
2765 case "$toolchain" in
2767 target_exec_args
="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2770 target_exec_args
="--track-origins=yes --leak-check=full"
2775 # Check whether the current MSVC version needs the C99 converter.
2776 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2777 # support enough of C99 to build libav. Default to the new
2778 # behaviour if the regexp was unable to match anything, since this
2779 # successfully parses the version number of existing supported
2780 # versions that require the converter (MSVC 2010 and 2012).
2781 cl_major_ver
=$
(cl
2>&1 |
sed -n
's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2782 if [ -z
"$cl_major_ver" ] ||
[ $cl_major_ver -ge
18 ]; then
2785 cc_default
="c99wrap cl"
2787 ld_default
="$source_path/compat/windows/mslink"
2788 nm_default
="dumpbin -symbols"
2795 target_os_default
="win32"
2796 # Use a relative path for TMPDIR. This makes sure all the
2797 # ffconf temp files are written with a relative path, avoiding
2798 # issues with msys/win32 path conversion for MSVC parameters
2799 # such as -Fo<file> or -out:<file>.
2805 nm_default
="dumpbin -symbols"
2807 target_os_default
="win32"
2811 add_cflags
-fprofile-arcs
-ftest-coverage
2812 add_ldflags
-fprofile-arcs
-ftest-coverage
2815 add_cppflags
-U_FORTIFY_SOURCE
-D_FORTIFY_SOURCE
=2
2816 add_cflags
-fno-strict-overflow
-fstack-protector-all
2817 add_ldflags
-Wl
,-z
,relro
-Wl
,-z
,now
2820 die
"Unknown toolchain $toolchain"
2824 test -n
"$cross_prefix" && enable cross_compile
2826 if enabled cross_compile
; then
2827 test -n
"$arch" && test -n
"$target_os" ||
2828 die
"Must specify target arch and OS when cross-compiling"
2831 ar_default
="${cross_prefix}${ar_default}"
2832 cc_default
="${cross_prefix}${cc_default}"
2833 occ_default
="${cross_prefix}${occ_default}"
2834 nm_default
="${cross_prefix}${nm_default}"
2835 pkg_config_default
="${cross_prefix}${pkg_config_default}"
2836 ranlib
="${cross_prefix}${ranlib}"
2837 strip
="${cross_prefix}${strip}"
2839 sysinclude_default
="${sysroot}/usr/include"
2841 set_default arch cc pkg_config sysinclude target_exec target_os
2842 enabled cross_compile || host_cc_default
=$cc
2845 if ! $pkg_config --version
>/dev
/null
2>&1; then
2846 warn
"$pkg_config not found, library detection may fail."
2852 mingw32
*|mingw64
*|win32|win64|cygwin
*|
*-dos|freedos|opendos|os
/2*|symbian
) echo .exe
;;
2856 EXESUF
=$
(exesuf
$target_os)
2857 HOSTEXESUF
=$
(exesuf
$host_os)
2859 # set temporary file name
2860 : ${TMPDIR:=$TEMPDIR}
2864 if ! check_cmd mktemp
-u XXXXXX
; then
2865 # simple replacement for missing mktemp
2866 # NOT SAFE FOR GENERAL USE
2868 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2873 tmp
=$
(mktemp
-u
"${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2874 (set -C
; exec > $tmp) 2>/dev
/null ||
2875 die
"Unable to create temporary file in $TMPDIR."
2876 append TMPFILES
$tmp
2880 trap 'rm -f -- $TMPFILES' EXIT
2884 tmpfile TMPE
$EXESUF
2895 # make sure we can execute files in $TMPDIR
2896 cat > $TMPSH 2>> $logfile <<EOF
2899 chmod +x
$TMPSH >> $logfile 2>&1
2900 if ! $TMPSH >> $logfile 2>&1; then
2902 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2903 variable to another directory and make sure that it is not mounted noexec.
2905 die
"Sanity test failed."
2911 # Filter out MSVC cl.exe options from cflags that shouldn't
2912 # be passed to gas-preprocessor
2922 -std
=c99
) echo -c99
;;
2923 -mcpu
=*) echo -arch
${flag#*=} ;;
2924 -mieee
) echo -ieee
;;
2925 -O
*|
-fast
) echo $flag ;;
2926 -fno-math-errno
) echo -assume nomath_errno
;;
2928 -Wall
) echo -msg_enable level2
;;
2929 -Wno-pointer-sign
) echo -msg_disable ptrmismatch1
;;
2930 -Wl
,*) echo $flag ;;
2940 -Wno-switch
) echo -Wno-switch-enum
;;
2941 -Wno-format-zero-length
) ;;
2942 -Wdisabled-optimization
) ;;
2943 -Wno-pointer-sign
) echo -Wno-other
;;
2949 msvc_common_flags
(){
2952 # In addition to specifying certain flags under the compiler
2953 # specific filters, they must be specified here as well or else the
2954 # generic catch all at the bottom will print the original flag.
2958 -fomit-frame-pointer
) ;;
2962 -fno-signed-zeros
) ;;
2966 -lz
) echo zlib.lib
;;
2967 -lavifil32
) echo vfw32.lib
;;
2968 -lavicap32
) echo vfw32.lib user32.lib
;;
2969 -lx264
) echo libx264.lib
;;
2970 -l
*) echo ${flag#-l}.lib
;;
2971 -L
*) echo -libpath
:${flag#-L} ;;
2978 msvc_common_flags
"$@"
2981 -Wall
) echo -W4
-wd4244
-wd4127
-wd4018
-wd4389 \
2982 -wd4146
-wd4057
-wd4204
-wd4706
-wd4305 \
2983 -wd4152
-wd4324
-we4013
-wd4100
-wd4214 \
2984 -wd4273
-wd4554
-wd4701
;;
2990 msvc_common_flags
"$@"
2993 # Despite what Intel's documentation says -Wall, which is supported
2994 # on Windows, does enable remarks so disable them here.
2995 -Wall
) echo $flag -Qdiag-disable
:remark
;;
2996 -std
=c99
) echo -Qstd
=c99
;;
3004 -flto
) echo -Mipa
=fast
,libopt
,libinline
,vestigial
;;
3005 -fomit-frame-pointer
) echo -Mnoframe
;;
3016 case "${flag#*=}" in
3017 native
) echo -xtarget
=native
;;
3018 v9|niagara
) echo -xarch
=sparc
;;
3019 ultrasparc
) echo -xarch
=sparcvis
;;
3020 ultrasparc3|niagara2
) echo -xarch
=sparcvis2
;;
3021 i586|pentium
) echo -xchip
=pentium
;;
3022 i686|pentiumpro|pentium2
) echo -xtarget
=pentium_pro
;;
3023 pentium3
*|c3-2
) echo -xtarget
=pentium3
;;
3024 pentium-m
) echo -xarch
=sse2
-xchip
=pentium3
;;
3025 pentium4
*) echo -xtarget
=pentium4
;;
3026 prescott|nocona
) echo -xarch
=sse3
-xchip
=pentium4
;;
3027 *-sse3
) echo -xarch
=sse3
;;
3028 core2
) echo -xarch
=ssse3
-xchip
=core2
;;
3029 corei7
) echo -xarch
=sse4_2
-xchip
=nehalem
;;
3030 corei7-avx
) echo -xarch
=avx
-xchip
=sandybridge
;;
3031 amdfam10|barcelona|bdver
*) echo -xarch
=sse4_1
;;
3032 athlon-4|athlon-
[mx
]p
) echo -xarch
=ssea
;;
3033 k8|opteron|athlon64|athlon-fx
)
3034 echo -xarch
=sse2a
;;
3035 athlon
*) echo -xarch
=pentium_proa
;;
3038 -std
=c99
) echo -xc99
;;
3039 -fomit-frame-pointer
) echo -xregs
=frameptr
;;
3040 -fPIC
) echo -KPIC
-xcode
=pic32
;;
3041 -W
*,*) echo $flag ;;
3042 -f
*-*|
-W
*|
-mimpure-text
) ;;
3053 case "${flag#*=}" in
3054 armv7-a|cortex-a
*) echo -mv=7a8
;;
3055 armv7-r|cortex-r
*) echo -mv=7r4
;;
3056 armv7-m|cortex-m
*) echo -mv=7m3
;;
3057 armv6
*|arm11
*) echo -mv=6 ;;
3058 armv5
*e|arm
[79]*e
*|arm9
[24]6*|arm96
*|arm102
[26])
3060 armv4
*|arm7
*|arm9
[24]*) echo -mv=4 ;;
3063 -mfpu
=neon
) echo --float_support
=vfpv3
--neon
;;
3064 -mfpu
=vfp
) echo --float_support
=vfpv2
;;
3065 -mfpu
=vfpv3
) echo --float_support
=vfpv3
;;
3066 -mfpu
=vfpv3-d16
) echo --float_support
=vfpv3d16
;;
3067 -msoft-float
) echo --float_support
=vfplib
;;
3068 -O
[0-3]|
-mf
=*) echo $flag ;;
3070 -pds
=*) echo $flag ;;
3071 -D
*|
-I
*) echo $flag ;;
3072 --gcc|
--abi
=*) echo $flag ;;
3082 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3083 unset _ld_o _ldflags _ld_lib _ld_path
3084 unset _depflags _DEPCMD _DEPFLAGS
3087 if $_cc -v
2>&1 |
grep -q
'^gcc.*LLVM'; then
3089 gcc_extra_ver
=$
(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3090 _ident
="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3091 _depflags
='-MMD -MF $(@:.o=.d) -MT $@'
3094 elif $_cc -v
2>&1 |
grep -qi ^gcc
; then
3096 gcc_version
=$
($_cc --version |
head -n1
)
3097 gcc_basever
=$
($_cc -dumpversion
)
3098 gcc_pkg_ver
=$
(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3099 gcc_ext_ver
=$
(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3100 _ident
=$
(cleanws
"gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3101 if ! $_cc -dumpversion |
grep -q
'^2\.'; then
3102 _depflags
='-MMD -MF $(@:.o=.d) -MT $@'
3106 elif $_cc --version
2>/dev
/null |
grep -q ^icc
; then
3108 _ident
=$
($_cc --version |
head -n1
)
3113 elif $_cc -v
2>&1 |
grep -q xlc
; then
3115 _ident
=$
($_cc -qversion
2>/dev
/null |
head -n1
)
3117 _cflags_size
='-O5 -qcompact'
3118 elif $_cc -V
2>/dev
/null |
grep -q Compaq
; then
3120 _ident
=$
($_cc -V |
head -n1 | cut
-d
' ' -f1-3
)
3122 _cflags_speed
='-fast'
3124 _flags_filter
=ccc_flags
3125 elif $_cc --vsn
2>/dev
/null |
grep -Eq
"ARM (C/C\+\+ )?Compiler"; then
3126 test -d
"$sysroot" || die
"No valid sysroot specified."
3128 _ident
=$
($_cc --vsn |
grep -i build |
head -n1 |
sed 's/.*: //')
3129 armcc_conf
="$PWD/armcc.conf"
3130 $_cc --arm_linux_configure \
3131 --arm_linux_config_file
="$armcc_conf" \
3132 --configure_sysroot
="$sysroot" \
3133 --configure_cpp_headers
="$sysinclude" >>$logfile 2>&1 ||
3134 die
"Error creating armcc configuration file."
3135 $_cc --vsn |
grep -q RVCT
&& armcc_opt
=rvct || armcc_opt
=armcc
3136 _flags
="--arm_linux_config_file=$armcc_conf --translate_gcc"
3137 as_default
="${cross_prefix}gcc"
3141 elif $_cc -version
2>/dev
/null |
grep -Eq
'TMS470|TI ARM'; then
3143 _ident
=$
($_cc -version |
head -n1 |
tr -s
' ')
3144 _flags
='--gcc --abi=eabi -me'
3147 _depflags
='-ppa -ppd=$(@:.o=.d)'
3148 _cflags_speed
='-O3 -mf=5'
3149 _cflags_size
='-O3 -mf=2'
3150 _flags_filter
=tms470_flags
3151 elif $_cc -v
2>&1 |
grep -q clang
; then
3153 _ident
=$
($_cc --version
2>/dev
/null |
head -n1
)
3154 _depflags
='-MMD -MF $(@:.o=.d) -MT $@'
3157 elif $_cc -V
2>&1 |
grep -q Sun
; then
3159 _ident
=$
($_cc -V
2>&1 |
head -n1 | cut
-d
' ' -f
2-)
3160 _DEPCMD
='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3161 _DEPFLAGS
='-xM1 -xc99'
3164 _cflags_size
='-O5 -xspace'
3165 _flags_filter
=suncc_flags
3166 elif $_cc -v
2>&1 |
grep -q
'PathScale\|Path64'; then
3168 _ident
=$
($_cc -v
2>&1 |
head -n1 |
tr -d
:)
3169 _depflags
='-MMD -MF $(@:.o=.d) -MT $@'
3172 _flags_filter
='filter_out -Wdisabled-optimization'
3173 elif $_cc -v
2>&1 |
grep -q Open64
; then
3175 _ident
=$
($_cc -v
2>&1 |
head -n1 |
tr -d
:)
3176 _depflags
='-MMD -MF $(@:.o=.d) -MT $@'
3179 _flags_filter
='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3180 elif $_cc -V
2>&1 |
grep -q Portland
; then
3182 _ident
="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3183 opt_common
='-alias=ansi -Mdse -Mlre -Mpre'
3184 _cflags_speed
="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3185 _cflags_size
="-O2 -Munroll=c:1 $opt_common"
3187 _flags_filter
=pgi_flags
3188 elif $_cc 2>&1 |
grep -q
'Microsoft.*ARM.*Assembler'; then
3190 _ident
=$
($_cc |
head -n1
)
3191 # 4509: "This form of conditional instruction is deprecated"
3192 _flags
="-nologo -ignore 4509"
3193 _flags_filter
=armasm_flags
3194 elif $_cc -nologo-
2>&1 |
grep -q Microsoft
; then
3196 _ident
=$
($_cc 2>&1 |
head -n1
)
3197 _DEPCMD
='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3198 _DEPFLAGS
='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3201 if $_cc -nologo-
2>&1 |
grep -q Linker
; then
3208 _flags_filter
=msvc_flags
3210 _ld_path
='-libpath:'
3212 _cflags
='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3213 elif $_cc 2>&1 |
grep -q Intel
; then
3215 _ident
=$
($_cc 2>&1 |
head -n1
)
3216 _depflags
='-QMMD -QMF$(@:.o=.d) -QMT$@'
3217 # Not only is O3 broken on 13.x+ but it is slower on all previous
3218 # versions (tested) as well.
3220 _cflags_size
="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3221 if $_cc 2>&1 |
grep -q Linker
; then
3228 _flags_filter
=icl_flags
3230 _ld_path
='-libpath:'
3231 # -Qdiag-error to make icl error when seeing certain unknown arguments
3232 _flags
='-nologo -Qdiag-error:4044,10157'
3233 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3234 # with MSVC which enables it by default.
3235 _cflags
='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3236 elif $_cc --version
2>/dev
/null |
grep -q ^cparser
; then
3238 _ident
=$
($_cc --version |
head -n1
)
3242 _flags_filter
=cparser_flags
3245 eval ${pfx}_type
=\
$_type
3246 eval ${pfx}_ident
=\
$_ident
3250 eval ${1}_C
=\
${_cc_c-\${${1}_C
}}
3251 eval ${1}_E
=\
${_cc_e-\${${1}_E
}}
3252 eval ${1}_O
=\
${_cc_o-\${${1}_O
}}
3254 if [ -n
"$_depflags" ]; then
3255 eval ${1}_DEPFLAGS
=\
$_depflags
3257 eval ${1}DEP
=\
${_DEPCMD:-\$DEPCMD}
3258 eval ${1}DEP_FLAGS
=\
${_DEPFLAGS:-\$DEPFLAGS}
3259 eval DEP
${1}FLAGS
=\
$_flags
3264 cflags_filter
=$_flags_filter
3265 cflags_speed
=$_cflags_speed
3266 cflags_size
=$_cflags_size
3267 cflags_noopt
=$_cflags_noopt
3268 add_cflags
$_flags $_cflags
3269 cc_ldflags
=$_ldflags
3272 probe_cc hostcc
"$host_cc"
3273 host_cflags_filter
=$_flags_filter
3274 add_host_cflags
$_flags $_cflags
3277 test -n
"$cc_type" && enable $cc_type ||
3278 warn
"Unknown C compiler $cc, unable to select optimal CFLAGS"
3280 : ${as_default:=$cc}
3281 : ${objcc_default:=$cc}
3282 : ${dep_cc_default:=$cc}
3283 : ${ld_default:=$cc}
3284 : ${host_ld_default:=$host_cc}
3285 set_default
ar as objcc dep_cc ld host_ld
3288 asflags_filter
=$_flags_filter
3289 add_asflags
$_flags $_cflags
3292 probe_cc objcc
"$objcc"
3293 objcflags_filter
=$_flags_filter
3294 add_objcflags
$_flags $_cflags
3298 ldflags_filter
=$_flags_filter
3299 add_ldflags
$_flags $_ldflags
3300 test "$cc_type" != "$ld_type" && add_ldflags
$cc_ldflags
3302 LD_LIB
=${_ld_lib-$LD_LIB}
3303 LD_PATH
=${_ld_path-$LD_PATH}
3305 probe_cc hostld
"$host_ld"
3306 host_ldflags_filter
=$_flags_filter
3307 add_host_ldflags
$_flags $_ldflags
3308 HOSTLD_O
=${_ld_o-$HOSTLD_O}
3310 if [ -z
"$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3311 probe_cc depcc
"$dep_cc"
3312 CCDEP
=${_DEPCMD:-$DEPCMD}
3313 CCDEP_FLAGS
=${_DEPFLAGS:=$DEPFLAGS}
3317 if $ar 2>&1 |
grep -q Microsoft
; then
3320 elif $ar 2>&1 |
grep -q
'Texas Instruments'; then
3323 elif $ar 2>&1 |
grep -q
'Usage: ar.*-X.*any'; then
3324 arflags
='-Xany -r -c'
3331 add_cflags
$extra_cflags
3332 add_objcflags
$extra_objcflags
3333 add_asflags
$extra_cflags
3335 if test -n
"$sysroot"; then
3338 add_cppflags
--sysroot
="$sysroot"
3339 add_ldflags
--sysroot
="$sysroot"
3342 add_cppflags
-I
"$sysinclude"
3343 add_ldflags
--sysroot
="$sysroot"
3348 if test "$cpu" = host; then
3349 enabled cross_compile
&&
3350 die
"--cpu=host makes no sense when cross-compiling."
3355 $cc $1=native
-v
-c
-o
$TMPO $TMPC >$TMPE 2>&1 ||
return
3357 s/.*$1=\\([^ ]*\\).*/\\1/
3362 cpu
=$
(check_native
-march || check_native
-mcpu
)
3366 test "${cpu:-host}" = host &&
3367 die
"--cpu=host not supported with compiler $cc"
3370 # Deal with common $arch aliases
3394 "Power Macintosh"|ppc
*|powerpc
*)
3409 i
[3-6]86|i86pc|BePC|x86pc|x86_64|amd64
)
3414 is_in
$arch $ARCH_LIST || warn
"unknown architecture $arch"
3417 # Add processor-specific flags
3418 if enabled aarch64
; then
3422 cpuflags
="-march=$cpu"
3425 cpuflags
="-mcpu=$cpu"
3429 elif enabled alpha
; then
3431 cpuflags
="-mcpu=$cpu"
3433 elif enabled arm
; then
3436 check_cpp_condition stddef.h \
3437 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3442 if check_arm_arch
4; then echo armv4
;
3443 elif check_arm_arch
4T
; then echo armv4t
;
3444 elif check_arm_arch
5; then echo armv5
;
3445 elif check_arm_arch
5E
; then echo armv5e
;
3446 elif check_arm_arch
5T
; then echo armv5t
;
3447 elif check_arm_arch
5TE
; then echo armv5te
;
3448 elif check_arm_arch
5TEJ
; then echo armv5te
;
3449 elif check_arm_arch
6; then echo armv6
;
3450 elif check_arm_arch
6J
; then echo armv6j
;
3451 elif check_arm_arch
6K
; then echo armv6k
;
3452 elif check_arm_arch
6Z
; then echo armv6z
;
3453 elif check_arm_arch
6ZK
; then echo armv6zk
;
3454 elif check_arm_arch
6T2
; then echo armv6t2
;
3455 elif check_arm_arch
7; then echo armv7
;
3456 elif check_arm_arch
7A
7_A
; then echo armv7-a
;
3457 elif check_arm_arch
7S
; then echo armv7-a
;
3458 elif check_arm_arch
7R
7_R
; then echo armv7-r
;
3459 elif check_arm_arch
7M
7_M
; then echo armv7-m
;
3460 elif check_arm_arch
7EM
7E_M
; then echo armv7-m
;
3461 elif check_arm_arch
8A
8_A
; then echo armv8-a
;
3465 [ "$cpu" = generic
] && cpu
=$
(probe_arm_arch
)
3469 cpuflags
="-march=$cpu"
3470 subarch
=$
(echo $cpu |
sed 's/[^a-z0-9]//g')
3473 cpuflags
="-mcpu=$cpu"
3475 cortex-a
*) subarch
=armv7a
;;
3476 cortex-r
*) subarch
=armv7r
;;
3477 cortex-m
*) enable thumb
; subarch
=armv7m
;;
3478 arm11
*) subarch
=armv6
;;
3479 arm
[79]*e
*|arm9
[24]6*|arm96
*|arm102
[26]) subarch
=armv5te
;;
3480 armv4
*|arm7
*|arm9
[24]*) subarch
=armv4
;;
3481 *) subarch
=$
(probe_arm_arch
) ;;
3487 armv5t
*) enable fast_clz
;;
3488 armv
[6-8]*) enable fast_clz fast_unaligned
;;
3491 elif enabled avr32
; then
3496 cpuflags
="-mpart=$cpu"
3500 cpuflags
="-march=$cpu"
3504 cpuflags
="-mcpu=$cpu"
3508 cpuflags
="-march=$cpu"
3512 elif enabled bfin
; then
3514 cpuflags
="-mcpu=$cpu"
3516 elif enabled mips
; then
3518 cpuflags
="-march=$cpu"
3520 elif enabled ppc
; then
3524 case $
(tolower
$cpu) in
3525 601|ppc601|powerpc601
)
3526 cpuflags
="-mcpu=601"
3529 603*|ppc603
*|powerpc603
*)
3530 cpuflags
="-mcpu=603"
3533 604*|ppc604
*|powerpc604
*)
3534 cpuflags
="-mcpu=604"
3537 g3|
75*|ppc75
*|powerpc75
*)
3538 cpuflags
="-mcpu=750"
3541 g4|
745*|ppc745
*|powerpc745
*)
3542 cpuflags
="-mcpu=7450"
3545 74*|ppc74
*|powerpc74
*)
3546 cpuflags
="-mcpu=7400"
3549 g5|
970|ppc970|powerpc970
)
3550 cpuflags
="-mcpu=970"
3554 cpuflags
="-mcpu=$cpu"
3558 cpuflags
="-mcpu=$cpu"
3562 cpuflags
="-mcpu=cell"
3567 cpuflags
="-mcpu=e500mc"
3571 cpuflags
="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3576 cpuflags
="-mcpu=8540 -mhard-float"
3582 elif enabled sparc
; then
3585 cypress|f93
[04]|tsc701|sparcl
*|supersparc|hypersparc|niagara|v
[789])
3586 cpuflags
="-mcpu=$cpu"
3588 ultrasparc
*|niagara
[234])
3589 cpuflags
="-mcpu=$cpu"
3593 elif enabled x86
; then
3597 cpuflags
="-march=$cpu"
3601 # targets that do NOT support nopl and conditional mov (cmov)
3602 pentium-mmx|k6|k6-
[23]|winchip-c6|winchip2|c3
)
3603 cpuflags
="-march=$cpu"
3606 # targets that do support nopl and conditional mov (cmov)
3607 i686|pentiumpro|pentium
[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-
[mx
]p|athlon64
*|k8
*|opteron
*|athlon-fx|core2|corei7
*|amdfam10|barcelona|atom|bdver
*)
3608 cpuflags
="-march=$cpu"
3612 # targets that do support conditional mov but on which it's slow
3613 pentium4|pentium4m|prescott|nocona
)
3614 cpuflags
="-march=$cpu"
3622 if [ "$cpu" != generic
]; then
3623 add_cflags
$cpuflags
3624 add_asflags
$cpuflags
3625 test "$cc_type" = "$ld_type" && add_ldflags
$cpuflags
3628 # compiler sanity check
3630 int main(void){ return 0; }
3632 if test "$?" != 0; then
3633 echo "$cc is unable to create an executable file."
3634 if test -z
"$cross_prefix" && ! enabled cross_compile
; then
3635 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3636 echo "Only do this if you know what cross compiling means."
3638 die
"C compiler test failed."
3641 add_cppflags
-D_ISOC99_SOURCE
3642 check_cflags
-std
=c99
3643 check_cc
-D_FILE_OFFSET_BITS
=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3646 check_cc
-D_LARGEFILE_SOURCE
<<EOF && add_cppflags -D_LARGEFILE_SOURCE
3650 add_host_cppflags
-D_ISOC99_SOURCE
3651 check_host_cflags
-std
=c99
3652 check_host_cflags
-Wall
3653 check_host_cflags
-O3
3659 check_code cc
"" "int test[2*($expr) - 1]" &&
3660 subarch
=$arch64 || subarch
=$arch32
3668 check_64bit mips mips64
'_MIPS_SIM > 1'
3672 check_64bit parisc parisc64
'sizeof(void *) > 4'
3676 check_64bit ppc ppc64
'sizeof(void *) > 4'
3680 check_64bit s390 s390x
'sizeof(void *) > 4'
3684 check_64bit sparc sparc64
'sizeof(void *) > 4'
3688 check_64bit x86_32 x86_64
'sizeof(void *) > 4'
3689 if test "$subarch" = "x86_64"; then
3696 enabled spic
&& enable_weak pic
3702 add_cppflags
'-I\$(SRC_PATH)/compat/aix'
3703 enabled shared
&& add_ldflags
-Wl
,-brtl
3707 enable section_data_rel_ro
3708 SLIB_INSTALL_NAME
='$(SLIBNAME)'
3710 SHFLAGS
='-shared -Wl,-soname,$(SLIBNAME)'
3713 prefix_default
="/boot/common"
3714 network_extralibs
="-lnetwork"
3718 SHFLAGS
='-shared -Wl,-h,$$(@F)'
3719 enabled x86
&& SHFLAGS
="-mimpure-text $SHFLAGS"
3720 network_extralibs
="-lsocket -lnsl"
3721 # When using suncc to build, the Solaris linker will mark
3722 # an executable with each instruction set encountered by
3723 # the Solaris assembler. As our libraries contain their own
3724 # guards for processor-specific code, instead suppress
3725 # generation of the HWCAPS ELF section on Solaris x86 only.
3726 enabled_all suncc x86
&&
3727 echo "hwcap_1 = OVERRIDE;" > mapfile
&&
3728 add_ldflags
-Wl
,-M
,mapfile
3729 nm_default
='nm -P -g'
3730 SLIB_CREATE_DEF_CMD
='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3734 oss_indev_extralibs
="-lossaudio"
3735 oss_outdev_extralibs
="-lossaudio"
3740 SLIB_INSTALL_NAME
='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3742 oss_indev_extralibs
="-lossaudio"
3743 oss_outdev_extralibs
="-lossaudio"
3751 add_extralibs
-lpoll
-lgnugetopt
3754 enabled ppc
&& add_asflags
-force_cpusubtype_ALL
3755 SHFLAGS
='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3756 enabled x86_32
&& append SHFLAGS
-Wl
,-read_only_relocs
,suppress
3757 add_ldflags
-Wl
,-dynamic
,-search_paths_first
3759 SLIBNAME_WITH_VERSION
='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3760 SLIBNAME_WITH_MAJOR
='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3762 enabled x86_64
&& objformat
="macho64"
3763 enabled_any pic shared ||
3764 { check_cflags
-mdynamic-no-pic
&& add_asflags
-mdynamic-no-pic
; }
3767 die
"Native MSYS builds are discouraged, please use the MINGW environment.";
3770 if test $target_os = "mingw32ce"; then
3776 if enabled x86_64
; then
3777 LIBTARGET
="i386:x86-64"
3778 elif enabled arm
; then
3781 check_ldflags
-Wl
,--nxcompat
3782 check_ldflags
-Wl
,--dynamicbase
3783 shlibdir_default
="$bindir_default"
3786 SLIBNAME_WITH_VERSION
='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3787 SLIBNAME_WITH_MAJOR
='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3788 SLIB_EXTRA_CMD
=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3789 SLIB_INSTALL_NAME
='$(SLIBNAME_WITH_MAJOR)'
3791 SLIB_INSTALL_EXTRA_SHLIB
='$(SLIBNAME:$(SLIBSUF)=.lib)'
3792 SLIB_INSTALL_EXTRA_LIB
='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3793 SHFLAGS
='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3795 dlltool
="${cross_prefix}dlltool"
3801 if enabled shared
; then
3802 # Link to the import library instead of the normal static library
3805 # Cannot build both shared and static libs with MSVC or icl.
3808 shlibdir_default
="$bindir_default"
3811 SLIBNAME_WITH_VERSION
='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3812 SLIBNAME_WITH_MAJOR
='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3813 SLIB_CREATE_DEF_CMD
='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3814 SLIB_INSTALL_NAME
='$(SLIBNAME_WITH_MAJOR)'
3816 SLIB_INSTALL_EXTRA_SHLIB
='$(SLIBNAME:$(SLIBSUF)=.lib)'
3817 SLIB_INSTALL_EXTRA_LIB
='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3818 SHFLAGS
='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3825 shlibdir_default
="$bindir_default"
3828 SLIBNAME_WITH_VERSION
='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3829 SLIBNAME_WITH_MAJOR
='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3830 SLIB_INSTALL_NAME
='$(SLIBNAME_WITH_MAJOR)'
3832 SLIB_INSTALL_EXTRA_LIB
='lib$(FULLNAME).dll.a'
3833 SHFLAGS
='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3837 *-dos|freedos|opendos
)
3838 network_extralibs
="-lsocket"
3841 add_cppflags
-U__STRICT_ANSI__
3845 enable section_data_rel_ro
3849 ranlib
="echo ignoring ranlib"
3854 add_cppflags
-D_GNU_SOURCE
3855 add_ldflags
-Zomf
-Zbin-files
-Zargs-wild
-Zmap
3856 SHFLAGS
='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3860 SLIBNAME_WITH_VERSION
='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3861 SLIBNAME_WITH_MAJOR
='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3862 SLIB_CREATE_DEF_CMD
='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3863 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3864 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3865 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3866 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3867 SLIB_EXTRA_CMD
='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3868 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3869 SLIB_INSTALL_EXTRA_LIB
='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3873 add_cppflags
-D_BSD_SOURCE
3878 add_cppflags
-D_QNX_SOURCE
3879 network_extralibs
="-lsocket"
3884 add_cflags
--include
=$sysinclude/gcce
/gcce.h
-fvisibility
=default
3885 add_cppflags
-D__GCCE__
-D__SYMBIAN32__
-DSYMBIAN_OE_POSIX_SIGNALS
3886 add_ldflags
-Wl
,--target1-abs
,--no-undefined \
3887 -Wl
,-Ttext
,0x80000,-Tdata
,0x1000000 -shared \
3888 -Wl
,--entry
=_E32Startup
-Wl
,-u
,_E32Startup
3889 add_extralibs
-l
:eexe.lib
-l
:usrt2_2.lib
-l
:dfpaeabi.dso \
3890 -l
:drtaeabi.dso
-l
:scppnwdl.dso
-lsupc
++ -lgcc \
3891 -l
:libc.dso
-l
:libm.dso
-l
:euser.dso
-l
:libcrt0.lib
3894 add_cppflags
-D_OSF_SOURCE
-D_POSIX_PII
-D_REENTRANT
3899 add_cppflags
-D_C99_SNPRINTF_EXTENSION \
3900 -D_REENTRANT_SOURCE \
3901 -D_RESEARCH_SOURCE \
3904 add_compat strtod.o strtod
=avpriv_strtod
3905 network_extralibs
='-lbsd'
3906 exeobjs
=compat
/plan9
/main.o
3912 die
"Unknown OS '$target_os'."
3916 # determine libc flavour
3921 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3922 if check_
${pfx}cpp_condition features.h
"defined __UCLIBC__"; then
3923 eval ${pfx}libc_type
=uclibc
3924 add_
${pfx}cppflags
-D_POSIX_C_SOURCE
=200112 -D_XOPEN_SOURCE
=600
3925 elif check_
${pfx}cpp_condition features.h
"defined __GLIBC__"; then
3926 eval ${pfx}libc_type
=glibc
3927 add_
${pfx}cppflags
-D_POSIX_C_SOURCE
=200112 -D_XOPEN_SOURCE
=600
3928 # MinGW headers can be installed on Cygwin, so check for newlib first.
3929 elif check_
${pfx}cpp_condition newlib.h
"defined _NEWLIB_VERSION"; then
3930 eval ${pfx}libc_type
=newlib
3931 add_
${pfx}cppflags
-U__STRICT_ANSI__
3932 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3933 elif check_
${pfx}cpp_condition _mingw.h
"defined __MINGW64_VERSION_MAJOR"; then
3934 eval ${pfx}libc_type
=mingw64
3935 add_
${pfx}cppflags
-U__STRICT_ANSI__
-D__USE_MINGW_ANSI_STDIO
=1
3936 eval test \$
${pfx_no_}cc_type
= "gcc" &&
3937 add_
${pfx}cppflags
-D__printf__
=__gnu_printf__
3938 elif check_
${pfx}cpp_condition _mingw.h
"defined __MINGW_VERSION" ||
3939 check_
${pfx}cpp_condition _mingw.h
"defined __MINGW32_VERSION"; then
3940 eval ${pfx}libc_type
=mingw32
3941 check_
${pfx}cpp_condition _mingw.h
"__MINGW32_MAJOR_VERSION > 3 || \
3942 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3943 die
"ERROR: MinGW32 runtime version must be >= 3.15."
3944 add_
${pfx}cppflags
-U__STRICT_ANSI__
-D__USE_MINGW_ANSI_STDIO
=1
3945 eval test \$
${pfx_no_}cc_type
= "gcc" &&
3946 add_
${pfx}cppflags
-D__printf__
=__gnu_printf__
3947 elif check_
${pfx}cpp_condition crtversion.h
"defined _VC_CRT_MAJOR_VERSION"; then
3948 eval ${pfx}libc_type
=msvcrt
3949 if check_
${pfx}cpp_condition crtversion.h
"_VC_CRT_MAJOR_VERSION < 14"; then
3950 if [ "$pfx" = host_
]; then
3951 add_host_cppflags
-Dsnprintf
=_snprintf
3953 add_compat strtod.o strtod
=avpriv_strtod
3954 add_compat msvcrt
/snprintf.o snprintf
=avpriv_snprintf \
3955 _snprintf
=avpriv_snprintf \
3956 vsnprintf
=avpriv_vsnprintf
3959 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3960 # 0x601 by default unless something else is set by the user.
3961 # This can easily lead to us detecting functions only present
3962 # in such new versions and producing binaries requiring windows 7.0.
3963 # Therefore explicitly set the default to XP unless the user has
3964 # set something else on the command line.
3965 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3966 # family. For these cases, configure is free to use any functions
3967 # found in the SDK headers by default. (Alternatively, we could force
3968 # _WIN32_WINNT to 0x0602 in that case.)
3969 check_
${pfx}cpp_condition stdlib.h
"defined(_WIN32_WINNT)" ||
3970 { check_
${pfx}cpp
<<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3971 #ifdef WINAPI_FAMILY
3972 #include <winapifamily.h>
3973 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3978 elif check_
${pfx}cpp_condition stddef.h
"defined __KLIBC__"; then
3979 eval ${pfx}libc_type
=klibc
3980 elif check_
${pfx}cpp_condition sys
/cdefs.h
"defined __BIONIC__"; then
3981 eval ${pfx}libc_type
=bionic
3982 elif check_
${pfx}cpp_condition sys
/brand.h
"defined LABELED_BRAND_NAME"; then
3983 eval ${pfx}libc_type
=solaris
3984 add_
${pfx}cppflags
-D__EXTENSIONS__
-D_XOPEN_SOURCE
=600
3986 eval ${pfx}libc_type
=default
3987 add_
${pfx}cppflags
-D_DEFAULT_SOURCE
3992 test -n
"$libc_type" && enable libc_
$libc_type
3994 test -n
"$host_libc_type" && enable host_libc_
$host_libc_type
3998 add_compat strtod.o strtod
=avpriv_strtod
4002 # hacks for compiler/libc/os combinations
4004 if enabled_all tms470 libc_glibc
; then
4005 CPPFLAGS
="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4006 add_cppflags
-D__USER_LABEL_PREFIX__
=
4007 add_cppflags
-D__builtin_memset
=memset
4008 add_cppflags
-D__gnuc_va_list
=va_list
-D_VA_LIST_DEFINED
4009 add_cflags
-pds
=48 # incompatible redefinition of macro
4012 if enabled_all ccc libc_glibc
; then
4013 add_ldflags
-Wl
,-z
,now
# calls to libots crash without this
4016 check_compile_assert flt_lim
"float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4017 add_cppflags
'-I\$(SRC_PATH)/compat/float'
4020 echo "$*" |
sed 's/%/%25/g;s/:/%3a/g'
4023 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4025 check_cpp_condition stdlib.h
"defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4027 set_default
$PATHS_LIST
4030 # we need to build at least one lib type
4031 if ! enabled_any static shared
; then
4033 At least one library type must be built.
4034 Specify --enable-static to build the static libraries or --enable-shared to
4035 build the shared libraries as well. To only build the shared libraries specify
4036 --disable-static in addition to --enable-shared.
4041 die_license_disabled
() {
4042 enabled
$1 ||
{ enabled
$2 && die
"$2 is $1 and --enable-$1 is not specified."; }
4045 die_license_disabled gpl libcdio
4046 die_license_disabled gpl libx264
4047 die_license_disabled gpl libx265
4048 die_license_disabled gpl libxavs
4049 die_license_disabled gpl libxvid
4050 die_license_disabled gpl x11grab
4052 die_license_disabled nonfree cuda
4053 die_license_disabled nonfree libfaac
4054 die_license_disabled nonfree libfdk_aac
4055 die_license_disabled nonfree nvenc
4056 die_license_disabled nonfree openssl
4058 die_license_disabled version3 libopencore_amrnb
4059 die_license_disabled version3 libopencore_amrwb
4060 die_license_disabled version3 libvo_aacenc
4061 die_license_disabled version3 libvo_amrwbenc
4063 enabled version3
&& { enabled gpl
&& enable gplv3 ||
enable lgplv3
; }
4065 disabled optimizations || check_cflags
-fomit-frame-pointer
4068 disabled pic
&& return
4071 case "$target_os" in
4081 enabled pic
&& enable_weak_pic
4083 check_cc
<<EOF || die "Symbol mangling check failed."
4086 sym
=$
($nm $TMPO |
awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4087 extern_prefix
=${sym%%ff_extern*}
4089 check_cc
<<EOF && enable_weak inline_asm
4090 void foo(void) { __asm__ volatile ("" ::); }
4094 for restrict_keyword
in restrict __restrict__ __restrict
; do
4095 check_cc
<<EOF && _restrict=$restrict_keyword && break
4096 void foo(char * $restrict_keyword p);
4100 check_cc
<<EOF && enable pragma_deprecated
4101 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4104 check_cc
<<EOF && enable attribute_packed
4105 struct { int x; } __attribute__((packed)) x;
4108 check_cc
<<EOF && enable attribute_may_alias
4109 union { int x; } __attribute__((may_alias)) x;
4112 check_cc
<<EOF || die "endian test failed"
4113 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4115 od -t x1
$TMPO |
grep -q
'42 *49 *47 *45' && enable bigendian
4118 log
"check_gas using '$as' as AS"
4119 # :vararg is used on aarch64, arm and ppc altivec
4120 check_as
<<EOF || return 1
4121 .macro m n, y:vararg=0
4126 # .altmacro is only used in arm asm
4127 ! enabled arm || check_as
<<EOF || return 1
4134 if enabled_any arm aarch64 || enabled_all ppc altivec
&& enabled asm
; then
4136 enabled_any arm aarch64
&& nogas
=die
4137 enabled_all ppc altivec
&& nogas
=warn
4141 arm
*) gaspp_as_type
=armasm
; as_noop
=-h
;;
4142 gcc
) gaspp_as_type
=gas
;;
4143 *) gaspp_as_type
=$as_type ;;
4146 [ $target_os = "darwin" ] && gaspp_as_type
="apple-$gaspp_as_type"
4148 check_cmd gas-preprocessor.pl
-arch
$arch -as-type
$gaspp_as_type -- $as $as_noop &&
4149 gas
="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4151 if ! check_gas
; then
4154 $nogas "GNU assembler not found, install/update gas-preprocessor"
4157 check_as
<<EOF && enable as_func
4163 check_inline_asm inline_asm_labels
'"1:\n"'
4165 if enabled aarch64
; then
4166 enabled armv8
&& check_insn armv8
'prfm pldl1strm, [x0]'
4167 # internal assembler in clang 3.3 does not support this instruction
4168 enabled neon
&& check_insn neon
'ext v0.8B, v0.8B, v1.8B, #1'
4169 enabled vfp
&& check_insn vfp
'fmadd d0, d0, d1, d2'
4171 map
'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4173 elif enabled alpha
; then
4177 elif enabled arm
; then
4179 enabled msvc
&& check_cpp_condition stddef.h
"defined _M_ARMT" && enable thumb
4180 check_cpp_condition stddef.h
"defined __thumb__" && enable_weak thumb
4181 enabled thumb
&& check_cflags
-mthumb || check_cflags
-marm
4183 if check_cpp_condition stddef.h
"defined __ARM_PCS_VFP"; then
4185 elif check_cpp_condition stddef.h
"defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4187 elif ! check_cpp_condition stddef.h
"defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin
]; then
4188 case "${cross_prefix:-$cc}" in
4189 *hardfloat
*) enable vfp_args
; fpabi
=vfp
;;
4190 *) check_ld
<<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4191 __asm__ (".eabi_attribute 28, 1");
4192 int main(void) { return 0; }
4195 warn
"Compiler does not indicate floating-point ABI, guessing $fpabi."
4198 enabled armv5te
&& check_insn armv5te
'qadd r0, r0, r0'
4199 enabled armv6
&& check_insn armv6
'sadd16 r0, r0, r0'
4200 enabled armv6t2
&& check_insn armv6t2
'movt r0, #0'
4201 enabled neon
&& check_insn neon
'vadd.i16 q0, q0, q0'
4202 enabled vfp
&& check_insn vfp
'fadds s0, s0, s0'
4203 enabled vfpv3
&& check_insn vfpv3
'vmov.f32 s0, #1.0'
4205 [ $target_os = linux
] ||
[ $target_os = android
] ||
4206 map
'enabled_any ${v}_external ${v}_inline || disable $v' \
4209 check_inline_asm asm_mod_q
'"add r0, %Q0, %R0" :: "r"((long long)0)'
4211 check_as
<<EOF && enable as_dn_directive
4216 # llvm's integrated assembler supports .object_arch from llvm 3.5
4217 [ "$objformat" = elf
] && check_as
<<EOF && enable as_object_arch
4221 [ $target_os != win32
] && enabled_all armv6t2 shared
!pic
&& enable_weak_pic
4223 elif enabled mips
; then
4225 check_inline_asm loongson
'"dmult.g $1, $2, $3"'
4227 # make sure that only an instruction set is enabled
4228 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4230 if enabled mips64
; then
4231 check_inline_asm mips64r6
'"dlsa $0, $0, $0, 1"' ||
4232 check_inline_asm mips64r2
'"dext $0, $0, 0, 1"' ||
4233 check_inline_asm mips64r1
'"daddi $0, $0, 0"'
4235 check_inline_asm mips32r6
'"aui $0, $0, 0"' ||
4236 check_inline_asm mips32r2
'"ext $0, $0, 0, 1"' ||
4237 check_inline_asm mips32r1
'"addi $0, $0, 0"'
4240 elif enabled parisc
; then
4242 if enabled gcc
; then
4243 case $
($cc -dumpversion
) in
4244 4.
[3-8].
*) check_cflags
-fno-optimize-sibling-calls
;;
4248 elif enabled ppc
; then
4250 enable local_aligned_8 local_aligned_16
4252 check_inline_asm dcbzl
'"dcbzl 0, %0" :: "r"(0)'
4253 check_inline_asm ibm_asm
'"add 0, 0, 0"'
4254 check_inline_asm ppc4xx
'"maclhw r10, r11, r12"'
4255 check_inline_asm xform_asm
'"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4257 # AltiVec flags: The FSF version of GCC differs from the Apple version
4258 if enabled altivec
; then
4259 check_cflags
-maltivec
-mabi
=altivec
&&
4260 { check_header altivec.h
&& inc_altivec_h
="#include <altivec.h>" ; } ||
4261 check_cflags
-faltivec
4263 # check if our compiler supports Motorola AltiVec C API
4264 check_cc
<<EOF || disable altivec
4267 vector signed int v1 = (vector signed int) { 0 };
4268 vector signed int v2 = (vector signed int) { 1 };
4269 v1 = vec_add(v1, v2);
4274 enabled altivec || warn
"Altivec disabled, possibly missing --cpu flag"
4277 if enabled vsx
; then
4278 check_cflags
-mvsx
&&
4279 check_builtin vec_vsx_ld
"altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4282 if enabled power8
; then
4283 check_cpp_condition
"altivec.h" "defined(_ARCH_PWR8)" || disable power8
4286 elif enabled x86
; then
4288 check_builtin rdtsc intrin.h
"__rdtsc()"
4289 check_builtin mm_empty mmintrin.h
"_mm_empty()"
4291 enable local_aligned_8 local_aligned_16
4293 # check whether EBP is available on x86
4294 # As 'i' is stored on the stack, this program will crash
4295 # if the base pointer is used to access it because the
4296 # base pointer is cleared in the inline assembly code.
4297 check_exec_crash
<<EOF && enable ebp_available
4299 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4303 # check whether EBX is available on x86
4304 check_inline_asm ebx_available
'""::"b"(0)' &&
4305 check_inline_asm ebx_available
'"":::"%ebx"'
4307 # check whether xmm clobbers are supported
4308 check_inline_asm xmm_clobbers
'"":::"%xmm0"'
4310 # check whether binutils is new enough to compile SSSE3/MMXEXT
4311 enabled ssse3
&& check_inline_asm ssse3_inline
'"pabsw %xmm0, %xmm0"'
4312 enabled mmxext
&& check_inline_asm mmxext_inline
'"pmaxub %mm0, %mm1"'
4314 if ! disabled_any asm mmx yasm
; then
4315 if check_cmd
$yasmexe --version
; then
4316 enabled x86_64
&& yasm_extra
="-m amd64"
4317 yasm_debug
="-g dwarf2"
4318 elif check_cmd nasm
-v
; then
4320 yasm_debug
="-g -F dwarf"
4321 enabled x86_64
&& test "$objformat" = elf
&& objformat
=elf64
4324 YASMFLAGS
="-f $objformat $yasm_extra"
4325 enabled pic
&& append YASMFLAGS
"-DPIC"
4326 test -n
"$extern_prefix" && append YASMFLAGS
"-DPREFIX"
4327 case "$objformat" in
4328 elf
*) enabled debug
&& append YASMFLAGS
$yasm_debug ;;
4331 check_yasm
"movbe ecx, [5]" && enable yasm ||
4332 die
"yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4333 check_yasm
"vextracti128 xmm0, ymm0, 0" || disable avx2_external
4334 check_yasm
"vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4335 check_yasm
"vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4336 check_yasm
"vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4337 check_yasm
"CPU amdnop" || disable cpunop
4341 athlon
*|opteron
*|k8
*|pentium|pentium-mmx|prescott|nocona|atom|geode
)
4348 check_code cc arm_neon.h
"int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4350 check_ldflags
-Wl
,--as-needed
4352 if check_func dlopen
; then
4354 elif check_func dlopen
-ldl
; then
4358 if ! disabled network
; then
4359 check_func getaddrinfo
$network_extralibs
4360 check_func inet_aton
$network_extralibs
4362 check_type netdb.h
"struct addrinfo"
4363 check_type netinet
/in.h
"struct group_source_req" -D_BSD_SOURCE
4364 check_type netinet
/in.h
"struct ip_mreq_source" -D_BSD_SOURCE
4365 check_type netinet
/in.h
"struct ipv6_mreq" -D_DARWIN_C_SOURCE
4366 check_type poll.h
"struct pollfd"
4367 check_type netinet
/sctp.h
"struct sctp_event_subscribe"
4368 check_struct
"sys/types.h sys/socket.h" "struct sockaddr" sa_len
4369 check_type netinet
/in.h
"struct sockaddr_in6"
4370 check_type
"sys/types.h sys/socket.h" "struct sockaddr_storage"
4371 check_type
"sys/types.h sys/socket.h" socklen_t
4373 # Prefer arpa/inet.h over winsock2
4374 if check_header arpa
/inet.h
; then
4375 check_func closesocket
4376 elif check_header winsock2.h
; then
4377 check_func_headers winsock2.h closesocket
-lws2
&&
4378 network_extralibs
="-lws2" ||
4379 { check_func_headers winsock2.h closesocket
-lws2_32
&&
4380 network_extralibs
="-lws2_32"; } || disable winsock2_h network
4381 check_func_headers ws2tcpip.h getaddrinfo
$network_extralibs
4383 check_type ws2tcpip.h socklen_t
4384 check_type ws2tcpip.h
"struct addrinfo"
4385 check_type ws2tcpip.h
"struct group_source_req"
4386 check_type ws2tcpip.h
"struct ip_mreq_source"
4387 check_type ws2tcpip.h
"struct ipv6_mreq"
4388 check_type winsock2.h
"struct pollfd"
4389 check_struct winsock2.h
"struct sockaddr" sa_len
4390 check_type ws2tcpip.h
"struct sockaddr_in6"
4391 check_type ws2tcpip.h
"struct sockaddr_storage"
4397 check_builtin atomic_cas_ptr atomic.h
"void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"