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-frei0r enable frei0r video filtering
183 --enable-gnutls enable gnutls [no]
184 --enable-libbs2b enable bs2b DSP library [no]
185 --enable-libcdio enable audio CD grabbing with libcdio
186 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
188 --enable-libdcadec enable DCA decoding via libdcadec [no]
189 --enable-libfaac enable AAC encoding via libfaac [no]
190 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
191 --enable-libfreetype enable libfreetype [no]
192 --enable-libgsm enable GSM de/encoding via libgsm [no]
193 --enable-libilbc enable iLBC de/encoding via libilbc [no]
194 --enable-libmfx enable HW acceleration through libmfx
195 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
196 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
197 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
198 --enable-libopencv enable video filtering via libopencv [no]
199 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
200 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
201 --enable-libopus enable Opus de/encoding via libopus [no]
202 --enable-libpulse enable Pulseaudio input via libpulse [no]
203 --enable-librtmp enable RTMP[E] support via librtmp [no]
204 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
205 --enable-libsnappy enable Snappy compression [no]
206 --enable-libspeex enable Speex de/encoding via libspeex [no]
207 --enable-libtheora enable Theora encoding via libtheora [no]
208 --enable-libtwolame enable MP2 encoding via libtwolame [no]
209 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
210 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
211 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
212 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
213 --enable-libwavpack enable wavpack encoding via libwavpack [no]
214 --enable-libwebp enable WebP encoding via libwebp [no]
215 --enable-libx264 enable H.264 encoding via x264 [no]
216 --enable-libx265 enable HEVC encoding via x265 [no]
217 --enable-libxavs enable AVS encoding via xavs [no]
218 --enable-libxcb enable X11 grabbing using XCB [no]
219 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
220 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
221 --enable-libxvid enable Xvid encoding via xvidcore,
222 native MPEG-4/Xvid encoder exists [no]
223 --enable-mmal enable decoding via MMAL [no]
224 --enable-nvenc enable encoding via NVENC [no]
225 --enable-openssl enable openssl [no]
226 --enable-x11grab enable X11 grabbing (legacy) [no]
227 --enable-zlib enable zlib [autodetect]
230 --arch=ARCH select architecture [$arch]
231 --cpu=CPU select the minimum required CPU (affects
232 instruction selection, may crash on older CPUs)
233 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
234 --enable-cross-compile assume a cross-compiler is used
235 --sysroot=PATH root of cross-build tree
236 --sysinclude=PATH location of cross-build system headers
237 --target-os=OS compiler targets OS [$target_os]
238 --target-exec=CMD command to run executables on target
239 --target-path=DIR path to view of build directory on target
240 --target-samples=DIR path to samples directory on target
241 --toolchain=NAME set tool defaults according to NAME
243 --ar=AR use archive tool AR [$ar_default]
244 --as=AS use assembler AS [$as_default]
245 --cc=CC use C compiler CC [$cc_default]
246 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
247 --ld=LD use linker LD
248 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
249 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
250 --host-cc=HOSTCC use host C compiler HOSTCC
251 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
252 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
253 --host-ld=HOSTLD use host linker HOSTLD
254 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
255 --host-libs=HLIBS use libs HLIBS when linking for host
256 --host-os=OS compiler host OS [$target_os]
257 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
258 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
259 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
260 --extra-libs=ELIBS add ELIBS [$ELIBS]
261 --extra-version=STRING version string suffix []
262 --optflags=OPTFLAGS override optimization-related compiler flags
263 --build-suffix=SUFFIX library name suffix []
264 --enable-pic build position-independent code
265 --enable-thumb compile for Thumb instruction set
266 --enable-lto use link-time optimization
267 --env="ENV=override" override the environment variables
269 Advanced options (experts only):
270 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
271 --custom-allocator=NAME use a supported custom allocator
272 --disable-symver disable symbol versioning
273 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
274 --disable-safe-bitstream-reader
275 disable buffer boundary checking in bitreaders
276 (faster, but may crash)
277 --enable-memalign-hack emulate memalign, interferes with memory debuggers
278 --enable-sram allow use of on-chip SRAM
280 Optimization options (experts only):
281 --disable-asm disable all assembly optimizations
282 --disable-altivec disable AltiVec optimizations
283 --disable-vsx disable VSX optimizations
284 --disable-power8 disable POWER8 optimizations
285 --disable-amd3dnow disable 3DNow! optimizations
286 --disable-amd3dnowext disable 3DNow! extended optimizations
287 --disable-mmx disable MMX optimizations
288 --disable-mmxext disable MMXEXT optimizations
289 --disable-sse disable SSE optimizations
290 --disable-sse2 disable SSE2 optimizations
291 --disable-sse3 disable SSE3 optimizations
292 --disable-ssse3 disable SSSE3 optimizations
293 --disable-sse4 disable SSE4 optimizations
294 --disable-sse42 disable SSE4.2 optimizations
295 --disable-avx disable AVX optimizations
296 --disable-xop disable XOP optimizations
297 --disable-fma3 disable FMA3 optimizations
298 --disable-fma4 disable FMA4 optimizations
299 --disable-avx2 disable AVX2 optimizations
300 --disable-armv5te disable armv5te optimizations
301 --disable-armv6 disable armv6 optimizations
302 --disable-armv6t2 disable armv6t2 optimizations
303 --disable-vfp disable VFP optimizations
304 --disable-neon disable NEON optimizations
305 --disable-inline-asm disable use of inline assembly
306 --disable-yasm disable use of nasm/yasm assembly
308 Developer options (useful when working on Libav itself):
309 --disable-debug disable debugging symbols
310 --enable-debug=LEVEL set the debug level [$debuglevel]
311 --disable-optimizations disable compiler optimizations
312 --enable-extra-warnings enable more compiler warnings
313 --samples=PATH location of test samples for FATE, if not set use
314 \$LIBAV_SAMPLES at make invocation time.
315 --enable-neon-clobber-test check NEON registers for clobbering (should be
316 used only for debugging purposes)
317 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
318 should be used only for debugging purposes)
319 --enable-random randomly enable/disable components
321 --enable-random=LIST randomly enable/disable specific components or
322 --disable-random=LIST component groups. LIST is a comma-separated list
323 of NAME[:PROB] entries where NAME is a component
324 (group) and PROB the probability associated with
326 --random-seed=VALUE seed value for --enable/disable-random
327 --disable-valgrind-backtrace do not print a backtrace under Valgrind
328 (only applies to --disable-optimizations builds)
330 NOTE: Object files are built at the place where configure is launched.
338 echo "$@" >> $logfile
343 pr -n -t $1 >> $logfile
354 WARNINGS="${WARNINGS}WARNING: $*\n"
361 If you think configure made a mistake, make sure you are using the latest
362 version from Git. If the latest version fails, report the problem to the
363 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
365 if disabled logging; then
367 Rerun configure with logging enabled (do not use --disable-logging), and
368 include the log this produces with your report.
372 Include the log file "$logfile" produced by configure as this will help
379 # Avoid locale weirdness, besides we really just want to translate ASCII.
381 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
385 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
389 echo "$*" | sed 's/["\\]/\\\0/g'
393 v=$(echo "$1" | sed "s/'/'\\\\''/g")
394 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
399 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
406 eval "case $v in $pat) echo $v ;; esac"
414 eval "case $v in $pat) ;; *) echo $v ;; esac"
421 for v; do eval $m; done
427 for v; do echo ${v}${suffix}; done
442 eval : \${$var:=$value}
447 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
453 eval $(sanitize_var_name "$var")='$*'
457 eval echo \$$(sanitize_var_name "$1")
462 eval level=\${${pvar}_level:=0}
463 eval ${pvar}_${level}="\$$pvar"
464 eval ${pvar}_level=$(($level+1))
470 eval level=\${${pvar}_level:-0}
471 test $level = 0 && continue
472 eval level=$(($level-1))
473 eval $pvar="\${${pvar}_${level}}"
474 eval ${pvar}_level=$level
475 eval unset ${pvar}_${level}
497 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
503 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
509 enabled $var && continue
510 eval sel="\$${var}_select"
511 eval sgs="\$${var}_suggest"
515 enable_deep_weak $sgs
527 disabled $var && continue
536 test "${1#!}" = "$1" && op== || op=!=
537 eval test "x\$${1#!}" $op "xyes"
541 test "${1#!}" = "$1" && op== || op=!=
542 eval test "x\$${1#!}" $op "xno"
547 enabled $opt || return 1
553 disabled $opt || return 1
559 enabled $opt && return 0
565 disabled $opt && return 0
572 eval : \${$opt:=\$${opt}_default}
580 [ $var = $value ] && return 0
588 enabled ${cfg}_checking && die "Circular dependency for $cfg."
589 disabled ${cfg}_checking && continue
590 enable ${cfg}_checking
593 eval dep_all="\$${cfg}_deps"
594 eval dep_any="\$${cfg}_deps_any"
595 eval dep_sel="\$${cfg}_select"
596 eval dep_sgs="\$${cfg}_suggest"
597 eval dep_ifa="\$${cfg}_if"
598 eval dep_ifn="\$${cfg}_if_any"
600 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
601 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
602 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
604 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
605 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
606 enabled_all $dep_all || disable $cfg
607 enabled_any $dep_any || disable $cfg
608 disabled_any $dep_sel && disable $cfg
610 if enabled $cfg; then
612 enable_deep_weak $dep_sgs
615 disable ${cfg}_checking
624 for cfg in $allopts; do
625 enabled $cfg || continue
626 eval dep_extralibs="\$${cfg}_extralibs"
627 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
635 map 'eval echo "$v \${$v:-no}"' "$@" |
636 awk "BEGIN { split(\"$files\", files) }
638 c = \"$pfx\" toupper(\$1);
644 if (file ~ /\\.h\$/) {
645 printf(\"#define %s %d\\n\", c, v) >>file;
646 } else if (file ~ /\\.asm\$/) {
647 printf(\"%%define %s %d\\n\", c, v) >>file;
648 } else if (file ~ /\\.mak\$/) {
649 n = -v ? \"\" : \"!\";
650 printf(\"%s%s=yes\\n\", n, c) >>file;
660 enabled $v && printf "%s\n" ${v%$suf};
667 eval "$var=\"\$$var $*\""
673 eval "$var=\"$* \$$var\""
679 for tok in $(eval echo \$$var); do
680 uniq_list="$(filter_out $tok $uniq_list) $tok"
682 eval "$var=\"${uniq_list}\""
690 append CFLAGS $($cflags_filter "$@")
694 append ASFLAGS $($asflags_filter "$@")
698 append LDFLAGS $($ldflags_filter "$@")
702 append LDEXEFLAGS $($ldflags_filter "$@")
706 append STRIPFLAGS "$@"
710 prepend extralibs $($ldflags_filter "$@")
714 append host_cppflags "$@"
718 append host_cflags $($host_cflags_filter "$@")
722 append host_ldflags $($host_ldflags_filter "$@")
726 append compat_objs $1
728 map 'add_cppflags -D$v' "$@"
733 "$@" >> $logfile 2>&1
737 eval printf '%s\\n' $CC_O
741 eval printf '%s\\n' $CC_E
748 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
755 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
759 eval printf '%s\\n' $AS_O
766 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
770 log check_inline_asm "$@"
775 check_cc "$@" <<EOF && enable $name
776 void foo(void){ __asm__ volatile($code); }
782 check_inline_asm ${1}_inline "\"$2\""
783 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
791 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
795 eval printf '%s\\n' $LD_O
800 flags=$(filter_out '-l*' "$@")
801 libs=$(filter '-l*' "$@")
802 check_cc $($cflags_filter $flags) || return
803 flags=$($ldflags_filter $flags)
804 libs=$($ldflags_filter $libs)
805 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
810 test "${hdr%.h}" = "${hdr}" &&
811 echo "#include $hdr" ||
812 echo "#include <$hdr>"
822 for hdr in $headers; do
825 echo "int main(void) { $code; return 0; }"
826 } | check_$check "$@"
830 log check_cppflags "$@"
831 check_cc "$@" <<EOF && append CPPFLAGS "$@"
838 set -- $($cflags_filter "$@")
845 log check_cflags "$@"
846 test_cflags "$@" && add_cflags "$@"
850 log test_ldflags "$@"
852 int main(void){ return 0; }
857 log check_ldflags "$@"
858 test_ldflags "$@" && add_ldflags "$@"
862 log test_stripflags "$@"
863 # call check_cc to get a fresh TMPO
865 int main(void) { return 0; }
867 check_cmd $strip $STRIPFLAGS "$@" $TMPO
871 log check_stripflags "$@"
872 test_stripflags "$@" && add_stripflags "$@"
876 log check_header "$@"
880 check_cpp "$@" <<EOF && enable_safe $header
891 check_ld "$@" <<EOF && enable $func
893 int main(void){ $func(); }
898 log check_mathfunc "$@"
902 test $narg = 2 && args="f, g" || args="f"
904 check_ld "$@" <<EOF && enable $func
906 float foo(float f, float g) { return $func($args); }
907 int main(void){ return 0; }
911 check_func_headers(){
912 log check_func_headers "$@"
917 for hdr in $headers; do
920 for func in $funcs; do
921 echo "long check_$func(void) { return (long) $func; }"
923 echo "int main(void) { return 0; }"
924 } | check_ld "$@" && enable $funcs && enable_safe $headers
927 check_cpp_condition(){
928 log check_cpp_condition "$@"
935 #error "unsatisfied condition: $condition"
945 check_header $header && check_func $func "$@" && add_extralibs "$@"
953 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
957 log check_pkg_config "$@"
962 check_cmd $pkg_config --exists --print-errors $pkg || return
963 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
964 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
965 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
966 set_safe "${pkg}_cflags" $pkg_cflags &&
967 set_safe "${pkg}_libs" $pkg_libs
971 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
977 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
978 # are safe but may not be available everywhere. Thus we use
979 # raise(SIGTERM) instead. The check is run in a subshell so we
980 # can redirect the "Terminated" message from the shell. SIGBUS
981 # is not defined by standard C so it is used conditionally.
983 (check_exec "$@") >> $logfile 2>&1 <<EOF
985 static void sighandler(int sig){
991 int (*func_ptr)(void) = foo;
993 signal(SIGILL, sighandler);
994 signal(SIGFPE, sighandler);
995 signal(SIGSEGV, sighandler);
997 signal(SIGBUS, sighandler);
1009 disable_safe "$type"
1010 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1014 log check_struct "$@"
1019 disable_safe "${struct}_${member}"
1020 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1021 enable_safe "${struct}_${member}"
1025 log check_builtin "$@"
1031 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1034 check_compile_assert(){
1035 log check_compile_assert "$@"
1041 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1049 check_lib $header $func "$@" || die "ERROR: $name not found"
1057 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1060 require_pkg_config(){
1062 check_pkg_config "$@" || die "ERROR: $pkg not found"
1063 add_cflags $(get_safe "${pkg}_cflags")
1064 add_extralibs $(get_safe "${pkg}_libs")
1068 eval printf '%s\\n' $HOSTCC_E
1072 eval printf '%s\\n' $HOSTCC_O
1076 log check_host_cc "$@"
1079 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1083 log check_host_cpp "$@"
1086 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1089 check_host_cppflags(){
1090 log check_host_cppflags "$@"
1091 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1096 check_host_cflags(){
1097 log check_host_cflags "$@"
1098 set -- $($host_cflags_filter "$@")
1099 check_host_cc "$@" <<EOF && append host_cflags "$@"
1104 check_host_cpp_condition(){
1105 log check_host_cpp_condition "$@"
1109 check_host_cpp "$@" <<EOF
1112 #error "unsatisfied condition: $condition"
1120 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1124 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1125 mkdir -p "$(dirname $2)"
1129 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1130 # system-dependent things.
1148 filter_audio_example
1152 transcode_aac_example
1155 EXTERNAL_LIBRARY_LIST="
1209 safe_bitstream_reader
1263 $EXTERNAL_LIBRARY_LIST
1328 ARCH_EXT_LIST_X86_SIMD="
1356 $ARCH_EXT_LIST_X86_SIMD
1361 ARCH_EXT_LIST_MIPS="
1395 sync_val_compare_and_swap
1413 cdio_paranoia_paranoia_h
1414 dev_bktr_ioctl_bt848_h
1415 dev_bktr_ioctl_meteor_h
1417 dev_video_bktr_ioctl_bt848_h
1418 dev_video_meteor_ioctl_meteor_h
1426 machine_ioctl_bt848_h
1427 machine_ioctl_meteor_h
1491 GetProcessAffinityMask
1492 GetProcessMemoryInfo
1496 GetSystemTimeAsFileTime
1501 jack_port_get_latency_range
1513 SetConsoleTextAttribute
1524 TOOLCHAIN_FEATURES="
1545 CONDITION_VARIABLE_Ptr
1548 struct_group_source_req
1549 struct_ip_mreq_source
1552 struct_rusage_ru_maxrss
1554 struct_sockaddr_sa_len
1555 struct_sockaddr_storage
1556 struct_v4l2_frmivalenum_discrete
1561 $(add_suffix _external $ARCH_EXT_LIST)
1562 $(add_suffix _inline $ARCH_EXT_LIST)
1589 # options emitted with CONFIG_ prefix but not available on the command line
1728 # code dependency declarations
1730 # architecture extensions
1735 armv8_deps="aarch64"
1736 neon_deps_any="aarch64 arm"
1737 intrinsics_neon_deps="neon"
1738 vfp_deps_any="aarch64 arm"
1741 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1749 x86_64_select="i686"
1750 x86_64_suggest="fast_cmov"
1753 amd3dnowext_deps="amd3dnow"
1769 mmx_external_deps="yasm"
1770 mmx_inline_deps="inline_asm"
1771 mmx_suggest="mmx_external mmx_inline"
1773 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1774 eval dep=\$${ext}_deps
1775 eval ${ext}_external_deps='"${dep}_external"'
1776 eval ${ext}_inline_deps='"${dep}_inline"'
1777 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1780 aligned_stack_if_any="aarch64 ppc x86"
1781 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1782 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1783 fast_unaligned_if_any="aarch64 ppc x86"
1784 simd_align_16_if_any="altivec neon sse"
1786 # system capabilities
1787 symver_if_any="symver_asm_label symver_gnu_asm"
1788 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1791 atomics_gcc_if="sync_val_compare_and_swap"
1792 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1793 atomics_win32_if="MemoryBarrier"
1794 atomics_native_if_any="$ATOMICS_LIST"
1795 w32threads_deps="atomics_native"
1796 threads_if_any="$THREADS_LIST"
1800 error_resilience_select="me_cmp"
1801 faandct_deps="faan fdctdsp"
1802 faanidct_deps="faan idctdsp"
1803 intrax8_select="error_resilience"
1806 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1807 mpeg_er_select="error_resilience"
1808 mpegaudio_select="mpegaudiodsp"
1809 mpegaudiodsp_select="dct"
1810 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1811 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1812 nvenc_deps_any="dlopen LoadLibrary"
1813 nvenc_extralibs='$ldl'
1817 # decoders / encoders
1818 aac_decoder_select="imdct15 mdct sinewin"
1819 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1820 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1821 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1822 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1823 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1824 adpcm_g722_decoder_select="g722dsp"
1825 adpcm_g722_encoder_select="g722dsp"
1826 aic_decoder_select="golomb idctdsp"
1827 alac_encoder_select="lpc"
1828 als_decoder_select="bswapdsp"
1829 amrnb_decoder_select="lsp"
1830 amrwb_decoder_select="lsp"
1831 amv_decoder_select="sp5x_decoder"
1832 ape_decoder_select="bswapdsp"
1833 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1834 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1835 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1836 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1837 atrac1_decoder_select="mdct sinewin"
1838 atrac3_decoder_select="mdct"
1839 atrac3p_decoder_select="mdct sinewin"
1840 bink_decoder_select="blockdsp hpeldsp"
1841 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1842 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1843 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1844 cllc_decoder_select="bswapdsp"
1845 comfortnoise_encoder_select="lpc"
1846 cook_decoder_select="audiodsp mdct sinewin"
1847 cscd_decoder_select="lzo"
1848 cscd_decoder_suggest="zlib"
1849 dca_decoder_select="fmtconvert mdct"
1850 dds_decoder_select="texturedsp"
1851 dnxhd_decoder_select="blockdsp idctdsp"
1852 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1853 dvvideo_decoder_select="dvprofile idctdsp"
1854 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1855 dxa_decoder_deps="zlib"
1856 dxv_decoder_select="lzf texturedsp"
1857 eac3_decoder_select="ac3_decoder"
1858 eac3_encoder_select="ac3_encoder"
1859 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1860 eatgq_decoder_select="aandcttables idctdsp"
1861 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1862 exr_decoder_deps="zlib"
1863 ffv1_decoder_select="golomb rangecoder"
1864 ffv1_encoder_select="rangecoder"
1865 ffvhuff_decoder_select="huffyuv_decoder"
1866 ffvhuff_encoder_select="huffyuv_encoder"
1867 fic_decoder_select="golomb"
1868 flac_decoder_select="flacdsp golomb"
1869 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1870 flashsv_decoder_deps="zlib"
1871 flashsv_encoder_deps="zlib"
1872 flashsv2_decoder_deps="zlib"
1873 flv_decoder_select="h263_decoder"
1874 flv_encoder_select="h263_encoder"
1875 fourxm_decoder_select="blockdsp bswapdsp"
1876 fraps_decoder_select="bswapdsp huffman"
1877 g2m_decoder_deps="zlib"
1878 g2m_decoder_select="blockdsp idctdsp jpegtables"
1879 h261_decoder_select="mpeg_er mpegvideo"
1880 h261_encoder_select="aandcttables mpegvideoenc"
1881 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1882 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1883 h263i_decoder_select="h263_decoder"
1884 h263p_encoder_select="h263_encoder"
1885 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1886 h264_decoder_suggest="error_resilience"
1887 h264_nvenc_encoder_deps="nvenc"
1888 h264_qsv_decoder_deps="libmfx"
1889 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1890 h264_qsv_encoder_deps="libmfx"
1891 h264_qsv_encoder_select="qsvenc"
1892 hap_decoder_select="snappy texturedsp"
1893 hap_encoder_deps="libsnappy"
1894 hap_encoder_select="texturedspenc"
1895 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1896 hevc_nvenc_encoder_deps="nvenc"
1897 hevc_qsv_encoder_deps="libmfx"
1898 hevc_qsv_decoder_deps="libmfx"
1899 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1900 hevc_qsv_encoder_select="qsvenc"
1901 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1902 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1903 iac_decoder_select="imc_decoder"
1904 imc_decoder_select="bswapdsp fft mdct sinewin"
1905 indeo3_decoder_select="hpeldsp"
1906 indeo4_decoder_select="ividsp"
1907 indeo5_decoder_select="ividsp"
1908 interplay_video_decoder_select="hpeldsp"
1909 jpegls_decoder_select="golomb mjpeg_decoder"
1910 jpegls_encoder_select="golomb"
1911 jv_decoder_select="blockdsp"
1912 lagarith_decoder_select="huffyuvdsp"
1913 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1914 loco_decoder_select="golomb"
1915 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1916 metasound_decoder_select="lsp mdct sinewin"
1917 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1918 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1919 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1920 mjpegb_decoder_select="mjpeg_decoder"
1921 mlp_decoder_select="mlp_parser"
1922 motionpixels_decoder_select="bswapdsp"
1923 mp1_decoder_select="mpegaudio"
1924 mp1float_decoder_select="mpegaudio"
1925 mp2_decoder_select="mpegaudio"
1926 mp2float_decoder_select="mpegaudio"
1927 mp3_decoder_select="mpegaudio"
1928 mp3adu_decoder_select="mpegaudio"
1929 mp3adufloat_decoder_select="mpegaudio"
1930 mp3float_decoder_select="mpegaudio"
1931 mp3on4_decoder_select="mpegaudio"
1932 mp3on4float_decoder_select="mpegaudio"
1933 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1934 mpc8_decoder_select="mpegaudiodsp"
1935 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1936 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1937 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1938 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1939 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1940 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1941 mpeg2_qsv_decoder_deps="libmfx"
1942 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
1943 mpeg2_qsv_encoder_deps="libmfx"
1944 mpeg2_qsv_encoder_select="qsvenc"
1945 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1946 mpeg4_encoder_select="h263_encoder"
1947 msa1_decoder_select="mss34dsp"
1948 msmpeg4v1_decoder_select="h263_decoder"
1949 msmpeg4v2_decoder_select="h263_decoder"
1950 msmpeg4v2_encoder_select="h263_encoder"
1951 msmpeg4v3_decoder_select="h263_decoder"
1952 msmpeg4v3_encoder_select="h263_encoder"
1953 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1954 mts2_decoder_select="mss34dsp"
1955 mxpeg_decoder_select="mjpeg_decoder"
1956 nellymoser_decoder_select="mdct sinewin"
1957 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1958 nuv_decoder_select="idctdsp lzo"
1959 on2avc_decoder_select="mdct"
1960 opus_decoder_deps="avresample"
1961 opus_decoder_select="imdct15"
1962 png_decoder_deps="zlib"
1963 png_encoder_deps="zlib"
1964 png_encoder_select="huffyuvencdsp"
1965 prores_decoder_select="idctdsp"
1966 prores_encoder_select="fdctdsp"
1967 qcelp_decoder_select="lsp"
1968 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1969 ra_144_encoder_select="audio_frame_queue lpc"
1970 ralf_decoder_select="golomb"
1971 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1972 rv10_encoder_select="h263_encoder"
1973 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1974 rv20_encoder_select="h263_encoder"
1975 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1976 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1977 screenpresso_decoder_deps="zlib"
1978 shorten_decoder_select="golomb"
1979 sipr_decoder_select="lsp"
1980 sp5x_decoder_select="mjpeg_decoder"
1981 svq1_decoder_select="hpeldsp"
1982 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1983 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1984 svq3_decoder_suggest="zlib"
1985 tak_decoder_select="audiodsp"
1986 tdsc_decoder_deps="zlib"
1987 tdsc_decoder_select="mjpeg_decoder"
1988 theora_decoder_select="vp3_decoder"
1989 thp_decoder_select="mjpeg_decoder"
1990 tiff_decoder_suggest="zlib"
1991 tiff_encoder_suggest="zlib"
1992 truehd_decoder_select="mlp_decoder"
1993 truemotion2_decoder_select="bswapdsp"
1994 truespeech_decoder_select="bswapdsp"
1995 tscc_decoder_deps="zlib"
1996 txd_decoder_select="texturedsp"
1997 twinvq_decoder_select="mdct lsp sinewin"
1998 utvideo_decoder_select="bswapdsp"
1999 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2000 vble_decoder_select="huffyuvdsp"
2001 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2002 vc1image_decoder_select="vc1_decoder"
2003 vorbis_decoder_select="mdct"
2004 vorbis_encoder_select="mdct"
2005 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2006 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2007 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2008 vp6a_decoder_select="vp6_decoder"
2009 vp6f_decoder_select="vp6_decoder"
2010 vp7_decoder_select="h264pred videodsp vp8dsp"
2011 vp8_decoder_select="h264pred videodsp vp8dsp"
2012 vp9_decoder_select="videodsp"
2013 webp_decoder_select="vp8_decoder"
2014 wmapro_decoder_select="mdct sinewin wma_freqs"
2015 wmav1_decoder_select="mdct sinewin wma_freqs"
2016 wmav1_encoder_select="mdct sinewin wma_freqs"
2017 wmav2_decoder_select="mdct sinewin wma_freqs"
2018 wmav2_encoder_select="mdct sinewin wma_freqs"
2019 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2020 wmv1_decoder_select="h263_decoder"
2021 wmv1_encoder_select="h263_encoder"
2022 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2023 wmv2_encoder_select="h263_encoder wmv2dsp"
2024 wmv3_decoder_select="vc1_decoder"
2025 wmv3image_decoder_select="wmv3_decoder"
2026 zerocodec_decoder_deps="zlib"
2027 zlib_decoder_deps="zlib"
2028 zlib_encoder_deps="zlib"
2029 zmbv_decoder_deps="zlib"
2030 zmbv_encoder_deps="zlib"
2032 # hardware accelerators
2033 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2034 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2035 vaapi_deps="va_va_h"
2036 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2037 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2038 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2040 h263_vaapi_hwaccel_deps="vaapi"
2041 h263_vaapi_hwaccel_select="h263_decoder"
2042 h263_vdpau_hwaccel_deps="vdpau"
2043 h263_vdpau_hwaccel_select="h263_decoder"
2044 h264_d3d11va_hwaccel_deps="d3d11va"
2045 h264_d3d11va_hwaccel_select="h264_decoder"
2046 h264_dxva2_hwaccel_deps="dxva2"
2047 h264_dxva2_hwaccel_select="h264_decoder"
2048 h264_mmal_decoder_deps="mmal"
2049 h264_mmal_hwaccel_deps="mmal"
2050 h264_mmal_decoder_select="h264_decoder"
2051 h264_mmal_encoder_deps="mmal"
2052 h264_qsv_hwaccel_deps="libmfx"
2053 h264_vaapi_hwaccel_deps="vaapi"
2054 h264_vaapi_hwaccel_select="h264_decoder"
2055 h264_vda_hwaccel_deps="vda"
2056 h264_vda_hwaccel_select="h264_decoder"
2057 h264_vda_old_hwaccel_deps="vda"
2058 h264_vda_old_hwaccel_select="h264_decoder"
2059 h264_vdpau_hwaccel_deps="vdpau"
2060 h264_vdpau_hwaccel_select="h264_decoder"
2061 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2062 hevc_d3d11va_hwaccel_select="hevc_decoder"
2063 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2064 hevc_dxva2_hwaccel_select="hevc_decoder"
2065 hevc_qsv_hwaccel_deps="libmfx"
2066 mpeg1_vdpau_hwaccel_deps="vdpau"
2067 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2068 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2069 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2070 mpeg2_dxva2_hwaccel_deps="dxva2"
2071 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2072 mpeg2_qsv_hwaccel_deps="libmfx"
2073 mpeg2_vaapi_hwaccel_deps="vaapi"
2074 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2075 mpeg2_vdpau_hwaccel_deps="vdpau"
2076 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2077 mpeg4_vaapi_hwaccel_deps="vaapi"
2078 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2079 mpeg4_vdpau_hwaccel_deps="vdpau"
2080 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2081 vc1_d3d11va_hwaccel_deps="d3d11va"
2082 vc1_d3d11va_hwaccel_select="vc1_decoder"
2083 vc1_dxva2_hwaccel_deps="dxva2"
2084 vc1_dxva2_hwaccel_select="vc1_decoder"
2085 vc1_vaapi_hwaccel_deps="vaapi"
2086 vc1_vaapi_hwaccel_select="vc1_decoder"
2087 vc1_vdpau_hwaccel_deps="vdpau"
2088 vc1_vdpau_hwaccel_select="vc1_decoder"
2089 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2090 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2091 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2092 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2095 h264_parser_select="h264_decoder"
2096 hevc_parser_select="golomb"
2097 mpegvideo_parser_select="mpegvideo"
2098 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2099 vc1_parser_select="mpegvideo startcode vc1_decoder"
2102 mjpeg2jpeg_bsf_select="jpegtables"
2104 # external libraries
2105 libdcadec_decoder_deps="libdcadec"
2106 libfaac_encoder_deps="libfaac"
2107 libfaac_encoder_select="audio_frame_queue"
2108 libfdk_aac_decoder_deps="libfdk_aac"
2109 libfdk_aac_encoder_deps="libfdk_aac"
2110 libfdk_aac_encoder_select="audio_frame_queue"
2111 libgsm_decoder_deps="libgsm"
2112 libgsm_encoder_deps="libgsm"
2113 libgsm_ms_decoder_deps="libgsm"
2114 libgsm_ms_encoder_deps="libgsm"
2115 libilbc_decoder_deps="libilbc"
2116 libilbc_encoder_deps="libilbc"
2117 libmp3lame_encoder_deps="libmp3lame"
2118 libmp3lame_encoder_select="audio_frame_queue"
2119 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2120 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2121 libopencore_amrnb_encoder_select="audio_frame_queue"
2122 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2123 libopenh264_encoder_deps="libopenh264"
2124 libopenjpeg_decoder_deps="libopenjpeg"
2125 libopenjpeg_encoder_deps="libopenjpeg"
2126 libopus_decoder_deps="libopus"
2127 libopus_encoder_deps="libopus"
2128 libopus_encoder_select="audio_frame_queue"
2129 libschroedinger_decoder_deps="libschroedinger"
2130 libschroedinger_encoder_deps="libschroedinger"
2131 libspeex_decoder_deps="libspeex"
2132 libspeex_encoder_deps="libspeex"
2133 libspeex_encoder_select="audio_frame_queue"
2134 libtheora_encoder_deps="libtheora"
2135 libtwolame_encoder_deps="libtwolame"
2136 libvo_aacenc_encoder_deps="libvo_aacenc"
2137 libvo_aacenc_encoder_select="audio_frame_queue"
2138 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2139 libvorbis_encoder_deps="libvorbis"
2140 libvorbis_encoder_select="audio_frame_queue"
2141 libvpx_vp8_decoder_deps="libvpx"
2142 libvpx_vp8_encoder_deps="libvpx"
2143 libvpx_vp9_decoder_deps="libvpx"
2144 libvpx_vp9_encoder_deps="libvpx"
2145 libwavpack_encoder_deps="libwavpack"
2146 libwebp_encoder_deps="libwebp"
2147 libx262_encoder_deps="libx262"
2148 libx264_encoder_deps="libx264"
2149 libx265_encoder_deps="libx265"
2150 libxavs_encoder_deps="libxavs"
2151 libxvid_encoder_deps="libxvid"
2154 ac3_demuxer_select="ac3_parser"
2155 asf_demuxer_select="riffdec"
2156 asf_muxer_select="riffenc"
2157 asf_stream_muxer_select="asf_muxer"
2158 avi_demuxer_select="riffdec"
2159 avi_muxer_select="riffenc"
2160 avisynth_demuxer_deps="avisynth"
2161 avisynth_demuxer_select="riffdec"
2162 caf_demuxer_select="riffdec"
2163 dash_muxer_select="mp4_muxer"
2164 dirac_demuxer_select="dirac_parser"
2165 dv_demuxer_select="dvprofile"
2166 dv_muxer_select="dvprofile"
2167 dxa_demuxer_select="riffdec"
2168 eac3_demuxer_select="ac3_parser"
2169 f4v_muxer_select="mov_muxer"
2170 flac_demuxer_select="flac_parser"
2171 hds_muxer_select="flv_muxer"
2172 hls_muxer_select="mpegts_muxer"
2173 ipod_muxer_select="mov_muxer"
2174 ismv_muxer_select="mov_muxer"
2175 matroska_audio_muxer_select="matroska_muxer"
2176 matroska_demuxer_select="riffdec"
2177 matroska_demuxer_suggest="bzlib lzo zlib"
2178 matroska_muxer_select="riffenc"
2179 mmf_muxer_select="riffenc"
2180 mov_demuxer_select="riffdec"
2181 mov_demuxer_suggest="zlib"
2182 mov_muxer_select="riffenc rtpenc_chain"
2183 mp3_demuxer_select="mpegaudio_parser"
2184 mp4_muxer_select="mov_muxer"
2185 mpegts_muxer_select="adts_muxer latm_muxer"
2186 mpegtsraw_demuxer_select="mpegts_demuxer"
2187 mxf_d10_muxer_select="mxf_muxer"
2188 nut_muxer_select="riffenc"
2189 nuv_demuxer_select="riffdec"
2190 oga_muxer_select="ogg_muxer"
2191 ogg_demuxer_select="golomb"
2192 opus_muxer_select="ogg_muxer"
2193 psp_muxer_select="mov_muxer"
2194 rtp_demuxer_select="sdp_demuxer"
2195 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2196 rtsp_demuxer_select="http_protocol rtpdec"
2197 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2198 sap_demuxer_select="sdp_demuxer"
2199 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2200 sdp_demuxer_select="rtpdec"
2201 smoothstreaming_muxer_select="ismv_muxer"
2202 spdif_muxer_select="aac_parser"
2203 spx_muxer_select="ogg_muxer"
2204 tak_demuxer_select="tak_parser"
2205 tg2_muxer_select="mov_muxer"
2206 tgp_muxer_select="mov_muxer"
2207 w64_demuxer_select="wav_demuxer"
2208 wav_demuxer_select="riffdec"
2209 wav_muxer_select="riffenc"
2210 webm_muxer_select="riffenc"
2211 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2212 wtv_demuxer_select="riffdec"
2213 xmv_demuxer_select="riffdec"
2214 xwma_demuxer_select="riffdec"
2217 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2218 alsa_outdev_deps="alsa_asoundlib_h"
2219 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2220 dv1394_indev_deps="dv1394"
2221 dv1394_indev_select="dv_demuxer"
2222 fbdev_indev_deps="linux_fb_h"
2223 jack_indev_deps="jack_jack_h pthreads"
2224 libcdio_indev_deps="libcdio"
2225 libdc1394_indev_deps="libdc1394"
2226 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2227 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2228 pulse_indev_deps="libpulse"
2229 sndio_indev_deps="sndio_h"
2230 sndio_outdev_deps="sndio_h"
2231 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2232 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2233 vfwcap_indev_extralibs="-lavicap32"
2234 x11grab_indev_deps="x11grab"
2235 x11grab_xcb_indev_deps="libxcb"
2238 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2239 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2240 ffrtmpcrypt_protocol_select="tcp_protocol"
2241 ffrtmphttp_protocol_deps="!librtmp_protocol"
2242 ffrtmphttp_protocol_select="http_protocol"
2243 gopher_protocol_select="network"
2244 http_protocol_select="tcp_protocol"
2245 httpproxy_protocol_select="tcp_protocol"
2246 https_protocol_select="tls_protocol"
2247 icecast_protocol_select="http_protocol"
2248 librtmp_protocol_deps="librtmp"
2249 librtmpe_protocol_deps="librtmp"
2250 librtmps_protocol_deps="librtmp"
2251 librtmpt_protocol_deps="librtmp"
2252 librtmpte_protocol_deps="librtmp"
2253 mmsh_protocol_select="http_protocol"
2254 mmst_protocol_select="network"
2255 rtmp_protocol_deps="!librtmp_protocol"
2256 rtmp_protocol_select="tcp_protocol"
2257 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2258 rtmps_protocol_deps="!librtmp_protocol"
2259 rtmps_protocol_select="tls_protocol"
2260 rtmpt_protocol_select="ffrtmphttp_protocol"
2261 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2262 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2263 rtp_protocol_select="udp_protocol"
2264 sctp_protocol_deps="struct_sctp_event_subscribe"
2265 sctp_protocol_select="network"
2266 srtp_protocol_select="rtp_protocol"
2267 tcp_protocol_select="network"
2268 tls_gnutls_protocol_deps="gnutls"
2269 tls_gnutls_protocol_select="tcp_protocol"
2270 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2271 tls_openssl_protocol_select="tcp_protocol"
2272 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2273 udp_protocol_select="network"
2274 unix_protocol_deps="sys_un_h"
2275 unix_protocol_select="network"
2278 blackframe_filter_deps="gpl"
2279 boxblur_filter_deps="gpl"
2280 bs2b_filter_deps="libbs2b"
2281 cropdetect_filter_deps="gpl"
2282 delogo_filter_deps="gpl"
2283 drawtext_filter_deps="libfreetype"
2284 frei0r_filter_deps="frei0r dlopen"
2285 frei0r_filter_extralibs='$ldl'
2286 frei0r_src_filter_deps="frei0r dlopen"
2287 frei0r_src_filter_extralibs='$ldl'
2288 hqdn3d_filter_deps="gpl"
2289 interlace_filter_deps="gpl"
2290 ocv_filter_deps="libopencv"
2291 resample_filter_deps="avresample"
2292 scale_filter_deps="swscale"
2295 avcodec_example_deps="avcodec avutil"
2296 filter_audio_example_deps="avfilter avutil"
2297 metadata_example_deps="avformat avutil"
2298 output_example_deps="avcodec avformat avutil swscale"
2299 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2300 transcode_aac_example_deps="avcodec avformat avresample"
2302 # libraries, in linking order
2303 avcodec_deps="avutil"
2304 avdevice_deps="avformat avcodec avutil"
2305 avfilter_deps="avutil"
2306 avformat_deps="avcodec avutil"
2307 avresample_deps="avutil"
2308 swscale_deps="avutil"
2311 avconv_deps="avcodec avfilter avformat avresample swscale"
2312 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2313 fps_filter null_filter resample_filter scale_filter
2314 setpts_filter trim_filter"
2315 avplay_deps="avcodec avformat avresample swscale sdl"
2316 avplay_libs='$sdl_libs'
2317 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2318 avprobe_deps="avcodec avformat"
2322 texi2html_deps="doc"
2324 # default parameters
2326 logfile="config.log"
2328 # installation paths
2329 prefix_default="/usr/local"
2330 bindir_default='${prefix}/bin'
2331 datadir_default='${prefix}/share/avconv'
2332 docdir_default='${prefix}/share/doc/libav'
2333 incdir_default='${prefix}/include'
2334 libdir_default='${prefix}/lib'
2335 mandir_default='${prefix}/share/man'
2336 shlibdir_default="$libdir_default"
2341 host_cc_default="gcc"
2346 pkg_config_default=pkg-config
2352 arch_default=$(uname -m)
2357 target_os_default=$(tolower $(uname -s))
2358 host_os=$target_os_default
2360 # configurable options
2361 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2366 enable faan faandct faanidct
2367 enable optimizations
2368 enable safe_bitstream_reader
2370 enable swscale_alpha
2371 enable valgrind_backtrace
2373 # By default, enable only those hwaccels that have no external dependencies.
2374 enable d3d11va dxva2 vda vdpau
2377 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2380 FULLNAME='$(NAME)$(BUILDSUF)'
2381 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2384 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2385 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2386 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2387 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2388 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2389 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2409 host_cflags_filter=echo
2410 host_ldflags_filter=echo
2412 target_path='$(CURDIR)'
2414 # since the object filename is not given with the -MM flag, the compiler
2415 # is only able to print the basename, and we must add the path ourselves
2416 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2420 if test -f configure; then
2423 source_path=$(cd $(dirname "$0"); pwd)
2424 echo "$source_path" | grep -q '[[:blank:]]' &&
2425 die "Out of tree builds are impossible with whitespace in source path."
2426 test -e "$source_path/config.h" &&
2427 die "Out of tree builds are impossible with config.h in source dir."
2434 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2440 file=$source_path/$3
2441 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2444 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2445 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2446 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2447 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2448 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2449 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2450 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2451 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2452 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2453 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2454 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2470 for n in $COMPONENT_LIST; do
2471 v=$(toupper ${n%s})_LIST
2473 eval ${n}_if_any="\$$v"
2476 enable $ARCH_EXT_LIST
2479 echo "Unknown option \"$1\"."
2480 echo "See $0 --help for available options."
2485 cat | tr ' ' '\n' | sort | pr -r -3 -t
2491 echo $* | sed s/$suffix//g | print_3_columns
2503 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2504 echo "prob ${prob:-0.5}"
2512 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2513 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2522 --extra-ldexeflags=*)
2523 add_ldexeflags $optval
2526 add_extralibs $optval
2529 disable $INDEV_LIST $OUTDEV_LIST
2532 debuglevel="$optval"
2535 disable $PROGRAM_LIST
2537 --disable-everything)
2538 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2541 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2542 disable $LIBRARY_LIST $PROGRAM_LIST doc
2544 --enable-random|--disable-random)
2545 action=${opt%%-random}
2546 do_random ${action#--} $COMPONENT_LIST
2548 --enable-random=*|--disable-random=*)
2549 action=${opt%%-random=*}
2550 do_random ${action#--} $optval
2552 --enable-*=*|--disable-*=*)
2553 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2554 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2555 eval list=\$$(toupper $thing)_LIST
2556 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2557 $action $(filter "$name" $list)
2559 --enable-avserver|--disable-avserver*)
2560 warn "avserver has been removed, the ${opt} option is only"\
2561 "provided for compatibility and will be removed in the future"
2563 --enable-?*|--disable-?*)
2564 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2565 if is_in $option $COMPONENT_LIST; then
2566 test $action = disable && action=unset
2567 eval $action \$$(toupper ${option%s})_LIST
2568 elif is_in $option $CMDLINE_SELECT; then
2575 NAME="${opt#--list-}"
2576 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2578 eval show_list $NAME \$$(toupper $NAME)_LIST
2580 --help|-h) show_help
2583 optname="${opt%%=*}"
2584 optname="${optname#--}"
2585 optname=$(echo "$optname" | sed 's/-/_/g')
2586 if is_in $optname $CMDLINE_SET; then
2587 eval $optname='$optval'
2588 elif is_in $optname $CMDLINE_APPEND; then
2589 append $optname "$optval"
2601 disabled logging && logfile=/dev/null
2603 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2606 case "$toolchain" in
2609 add_cflags -fsanitize=address
2610 add_ldflags -fsanitize=address
2614 add_cflags -fsanitize=thread -pie
2615 add_ldflags -fsanitize=thread -pie
2619 add_cflags -fsanitize=undefined -O1
2620 add_ldflags -fsanitize=undefined
2624 add_cflags -fsanitize=address
2625 add_ldflags -fsanitize=address
2629 add_cflags -fsanitize=thread -pie -fPIC
2630 add_ldflags -fsanitize=thread -pie -fPIC
2634 add_cflags -fsanitize=undefined
2635 add_ldflags -fsanitize=undefined
2638 target_exec_default="valgrind"
2639 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2642 target_exec_default="valgrind"
2643 target_exec_args="--track-origins=yes --leak-check=full"
2646 # Check whether the current MSVC version needs the C99 converter.
2647 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2648 # support enough of C99 to build libav. Default to the new
2649 # behaviour if the regexp was unable to match anything, since this
2650 # successfully parses the version number of existing supported
2651 # versions that require the converter (MSVC 2010 and 2012).
2652 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2653 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2656 cc_default="c99wrap cl"
2658 ld_default="$source_path/compat/windows/mslink"
2659 nm_default="dumpbin -symbols"
2666 target_os_default="win32"
2667 # Use a relative path for TMPDIR. This makes sure all the
2668 # ffconf temp files are written with a relative path, avoiding
2669 # issues with msys/win32 path conversion for MSVC parameters
2670 # such as -Fo<file> or -out:<file>.
2676 nm_default="dumpbin -symbols"
2678 target_os_default="win32"
2682 add_cflags -fprofile-arcs -ftest-coverage
2683 add_ldflags -fprofile-arcs -ftest-coverage
2686 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2687 add_cflags -fno-strict-overflow -fstack-protector-all
2688 add_ldflags -Wl,-z,relro -Wl,-z,now
2691 die "Unknown toolchain $toolchain"
2695 test -n "$cross_prefix" && enable cross_compile
2697 if enabled cross_compile; then
2698 test -n "$arch" && test -n "$target_os" ||
2699 die "Must specify target arch and OS when cross-compiling"
2702 ar_default="${cross_prefix}${ar_default}"
2703 cc_default="${cross_prefix}${cc_default}"
2704 nm_default="${cross_prefix}${nm_default}"
2705 pkg_config_default="${cross_prefix}${pkg_config_default}"
2706 ranlib="${cross_prefix}${ranlib}"
2707 strip="${cross_prefix}${strip}"
2709 sysinclude_default="${sysroot}/usr/include"
2711 set_default arch cc pkg_config sysinclude target_exec target_os
2712 enabled cross_compile || host_cc_default=$cc
2715 if ! $pkg_config --version >/dev/null 2>&1; then
2716 warn "$pkg_config not found, library detection may fail."
2722 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2726 EXESUF=$(exesuf $target_os)
2727 HOSTEXESUF=$(exesuf $host_os)
2729 # set temporary file name
2730 : ${TMPDIR:=$TEMPDIR}
2734 if ! check_cmd mktemp -u XXXXXX; then
2735 # simple replacement for missing mktemp
2736 # NOT SAFE FOR GENERAL USE
2738 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2743 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2744 (set -C; exec > $tmp) 2>/dev/null ||
2745 die "Unable to create temporary file in $TMPDIR."
2746 append TMPFILES $tmp
2750 trap 'rm -f -- $TMPFILES' EXIT
2754 tmpfile TMPE $EXESUF
2765 # make sure we can execute files in $TMPDIR
2766 cat > $TMPSH 2>> $logfile <<EOF
2769 chmod +x $TMPSH >> $logfile 2>&1
2770 if ! $TMPSH >> $logfile 2>&1; then
2772 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2773 variable to another directory and make sure that it is not mounted noexec.
2775 die "Sanity test failed."
2781 # Filter out MSVC cl.exe options from cflags that shouldn't
2782 # be passed to gas-preprocessor
2792 -std=c99) echo -c99 ;;
2793 -mcpu=*) echo -arch ${flag#*=} ;;
2794 -mieee) echo -ieee ;;
2795 -O*|-fast) echo $flag ;;
2796 -fno-math-errno) echo -assume nomath_errno ;;
2798 -Wall) echo -msg_enable level2 ;;
2799 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2800 -Wl,*) echo $flag ;;
2810 -Wno-switch) echo -Wno-switch-enum ;;
2811 -Wno-format-zero-length) ;;
2812 -Wdisabled-optimization) ;;
2813 -Wno-pointer-sign) echo -Wno-other ;;
2819 msvc_common_flags(){
2822 # In addition to specifying certain flags under the compiler
2823 # specific filters, they must be specified here as well or else the
2824 # generic catch all at the bottom will print the original flag.
2828 -fomit-frame-pointer) ;;
2832 -fno-signed-zeros) ;;
2836 -lz) echo zlib.lib ;;
2837 -lavifil32) echo vfw32.lib ;;
2838 -lavicap32) echo vfw32.lib user32.lib ;;
2839 -l*) echo ${flag#-l}.lib ;;
2840 -L*) echo -libpath:${flag#-L} ;;
2847 msvc_common_flags "$@"
2850 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2851 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2852 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2853 -wd4273 -wd4554 -wd4701 ;;
2859 msvc_common_flags "$@"
2862 # Despite what Intel's documentation says -Wall, which is supported
2863 # on Windows, does enable remarks so disable them here.
2864 -Wall) echo $flag -Qdiag-disable:remark ;;
2865 -std=c99) echo -Qstd=c99 ;;
2873 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2874 -fomit-frame-pointer) echo -Mnoframe ;;
2885 case "${flag#*=}" in
2886 native) echo -xtarget=native ;;
2887 v9|niagara) echo -xarch=sparc ;;
2888 ultrasparc) echo -xarch=sparcvis ;;
2889 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2890 i586|pentium) echo -xchip=pentium ;;
2891 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2892 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2893 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2894 pentium4*) echo -xtarget=pentium4 ;;
2895 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2896 *-sse3) echo -xarch=sse3 ;;
2897 core2) echo -xarch=ssse3 -xchip=core2 ;;
2898 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2899 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2900 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2901 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2902 k8|opteron|athlon64|athlon-fx)
2903 echo -xarch=sse2a ;;
2904 athlon*) echo -xarch=pentium_proa ;;
2907 -std=c99) echo -xc99 ;;
2908 -fomit-frame-pointer) echo -xregs=frameptr ;;
2909 -fPIC) echo -KPIC -xcode=pic32 ;;
2910 -W*,*) echo $flag ;;
2911 -f*-*|-W*|-mimpure-text) ;;
2922 case "${flag#*=}" in
2923 armv7-a|cortex-a*) echo -mv=7a8 ;;
2924 armv7-r|cortex-r*) echo -mv=7r4 ;;
2925 armv7-m|cortex-m*) echo -mv=7m3 ;;
2926 armv6*|arm11*) echo -mv=6 ;;
2927 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2929 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2932 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2933 -mfpu=vfp) echo --float_support=vfpv2 ;;
2934 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2935 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2936 -msoft-float) echo --float_support=vfplib ;;
2937 -O[0-3]|-mf=*) echo $flag ;;
2939 -pds=*) echo $flag ;;
2940 -D*|-I*) echo $flag ;;
2941 --gcc|--abi=*) echo $flag ;;
2951 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2952 unset _ld_o _ldflags _ld_lib _ld_path
2953 unset _depflags _DEPCMD _DEPFLAGS
2956 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2958 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
2959 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
2960 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2963 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2965 gcc_version=$($_cc --version | head -n1)
2966 gcc_basever=$($_cc -dumpversion)
2967 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2968 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2969 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2970 if ! $_cc -dumpversion | grep -q '^2\.'; then
2971 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2975 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2977 _ident=$($_cc --version | head -n1)
2982 elif $_cc -v 2>&1 | grep -q xlc; then
2984 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2986 _cflags_size='-O5 -qcompact'
2987 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2989 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2991 _cflags_speed='-fast'
2993 _flags_filter=ccc_flags
2994 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2995 test -d "$sysroot" || die "No valid sysroot specified."
2997 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2998 armcc_conf="$PWD/armcc.conf"
2999 $_cc --arm_linux_configure \
3000 --arm_linux_config_file="$armcc_conf" \
3001 --configure_sysroot="$sysroot" \
3002 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3003 die "Error creating armcc configuration file."
3004 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3005 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3006 as_default="${cross_prefix}gcc"
3010 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3012 _ident=$($_cc -version | head -n1 | tr -s ' ')
3013 _flags='--gcc --abi=eabi -me'
3016 _depflags='-ppa -ppd=$(@:.o=.d)'
3017 _cflags_speed='-O3 -mf=5'
3018 _cflags_size='-O3 -mf=2'
3019 _flags_filter=tms470_flags
3020 elif $_cc -v 2>&1 | grep -q clang; then
3022 _ident=$($_cc --version 2>/dev/null | head -n1)
3023 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3026 elif $_cc -V 2>&1 | grep -q Sun; then
3028 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3029 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3030 _DEPFLAGS='-xM1 -xc99'
3033 _cflags_size='-O5 -xspace'
3034 _flags_filter=suncc_flags
3035 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3037 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3038 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3041 _flags_filter='filter_out -Wdisabled-optimization'
3042 elif $_cc -v 2>&1 | grep -q Open64; then
3044 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3045 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3048 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3049 elif $_cc -V 2>&1 | grep -q Portland; then
3051 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3052 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3053 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3054 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3056 _flags_filter=pgi_flags
3057 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3059 _ident=$($_cc | head -n1)
3060 # 4509: "This form of conditional instruction is deprecated"
3061 _flags="-nologo -ignore 4509"
3062 _flags_filter=armasm_flags
3063 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3065 _ident=$($_cc 2>&1 | head -n1)
3066 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3067 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3070 if $_cc -nologo- 2>&1 | grep -q Linker; then
3077 _flags_filter=msvc_flags
3079 _ld_path='-libpath:'
3081 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS'
3082 elif $_cc 2>&1 | grep -q Intel; then
3084 _ident=$($_cc 2>&1 | head -n1)
3085 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3086 # Not only is O3 broken on 13.x+ but it is slower on all previous
3087 # versions (tested) as well.
3089 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3090 if $_cc 2>&1 | grep -q Linker; then
3097 _flags_filter=icl_flags
3099 _ld_path='-libpath:'
3100 # -Qdiag-error to make icl error when seeing certain unknown arguments
3101 _flags='-nologo -Qdiag-error:4044,10157'
3102 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3103 # with MSVC which enables it by default.
3104 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3105 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3107 _ident=$($_cc --version | head -n1)
3111 _flags_filter=cparser_flags
3114 eval ${pfx}_type=\$_type
3115 eval ${pfx}_ident=\$_ident
3119 eval ${1}_C=\${_cc_c-\${${1}_C}}
3120 eval ${1}_E=\${_cc_e-\${${1}_E}}
3121 eval ${1}_O=\${_cc_o-\${${1}_O}}
3123 if [ -n "$_depflags" ]; then
3124 eval ${1}_DEPFLAGS=\$_depflags
3126 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3127 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3128 eval DEP${1}FLAGS=\$_flags
3133 cflags_filter=$_flags_filter
3134 cflags_speed=$_cflags_speed
3135 cflags_size=$_cflags_size
3136 cflags_noopt=$_cflags_noopt
3137 add_cflags $_flags $_cflags
3138 cc_ldflags=$_ldflags
3141 probe_cc hostcc "$host_cc"
3142 host_cflags_filter=$_flags_filter
3143 add_host_cflags $_flags $_cflags
3146 test -n "$cc_type" && enable $cc_type ||
3147 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3149 : ${as_default:=$cc}
3150 : ${dep_cc_default:=$cc}
3151 : ${ld_default:=$cc}
3152 : ${host_ld_default:=$host_cc}
3153 set_default ar as dep_cc ld host_ld
3156 asflags_filter=$_flags_filter
3157 add_asflags $_flags $_cflags
3161 ldflags_filter=$_flags_filter
3162 add_ldflags $_flags $_ldflags
3163 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3165 LD_LIB=${_ld_lib-$LD_LIB}
3166 LD_PATH=${_ld_path-$LD_PATH}
3168 probe_cc hostld "$host_ld"
3169 host_ldflags_filter=$_flags_filter
3170 add_host_ldflags $_flags $_ldflags
3171 HOSTLD_O=${_ld_o-$HOSTLD_O}
3173 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3174 probe_cc depcc "$dep_cc"
3175 CCDEP=${_DEPCMD:-$DEPCMD}
3176 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3180 if $ar 2>&1 | grep -q Microsoft; then
3183 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3186 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3187 arflags='-Xany -r -c'
3194 add_cflags $extra_cflags
3195 add_asflags $extra_cflags
3197 if test -n "$sysroot"; then
3200 add_cppflags --sysroot="$sysroot"
3201 add_ldflags --sysroot="$sysroot"
3204 add_cppflags -I"$sysinclude"
3205 add_ldflags --sysroot="$sysroot"
3210 if test "$cpu" = host; then
3211 enabled cross_compile &&
3212 die "--cpu=host makes no sense when cross-compiling."
3217 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3219 s/.*$1=\\([^ ]*\\).*/\\1/
3224 cpu=$(check_native -march || check_native -mcpu)
3228 test "${cpu:-host}" = host &&
3229 die "--cpu=host not supported with compiler $cc"
3232 # Deal with common $arch aliases
3246 "Power Macintosh"|ppc*|powerpc*)
3261 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3266 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3269 # Add processor-specific flags
3270 if enabled aarch64; then
3274 cpuflags="-march=$cpu"
3277 cpuflags="-mcpu=$cpu"
3281 elif enabled alpha; then
3283 cpuflags="-mcpu=$cpu"
3285 elif enabled arm; then
3288 check_cpp_condition stddef.h \
3289 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3294 if check_arm_arch 4; then echo armv4;
3295 elif check_arm_arch 4T; then echo armv4t;
3296 elif check_arm_arch 5; then echo armv5;
3297 elif check_arm_arch 5E; then echo armv5e;
3298 elif check_arm_arch 5T; then echo armv5t;
3299 elif check_arm_arch 5TE; then echo armv5te;
3300 elif check_arm_arch 5TEJ; then echo armv5te;
3301 elif check_arm_arch 6; then echo armv6;
3302 elif check_arm_arch 6J; then echo armv6j;
3303 elif check_arm_arch 6K; then echo armv6k;
3304 elif check_arm_arch 6Z; then echo armv6z;
3305 elif check_arm_arch 6ZK; then echo armv6zk;
3306 elif check_arm_arch 6T2; then echo armv6t2;
3307 elif check_arm_arch 7; then echo armv7;
3308 elif check_arm_arch 7A 7_A; then echo armv7-a;
3309 elif check_arm_arch 7S; then echo armv7-a;
3310 elif check_arm_arch 7R 7_R; then echo armv7-r;
3311 elif check_arm_arch 7M 7_M; then echo armv7-m;
3312 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3313 elif check_arm_arch 8A 8_A; then echo armv8-a;
3317 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3321 cpuflags="-march=$cpu"
3322 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3325 cpuflags="-mcpu=$cpu"
3327 cortex-a*) subarch=armv7a ;;
3328 cortex-r*) subarch=armv7r ;;
3329 cortex-m*) enable thumb; subarch=armv7m ;;
3330 arm11*) subarch=armv6 ;;
3331 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3332 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3333 *) subarch=$(probe_arm_arch) ;;
3339 armv5t*) enable fast_clz ;;
3340 armv[6-8]*) enable fast_clz fast_unaligned ;;
3343 elif enabled avr32; then
3348 cpuflags="-mpart=$cpu"
3352 cpuflags="-march=$cpu"
3356 cpuflags="-mcpu=$cpu"
3360 cpuflags="-march=$cpu"
3364 elif enabled bfin; then
3366 cpuflags="-mcpu=$cpu"
3368 elif enabled mips; then
3370 cpuflags="-march=$cpu"
3372 elif enabled ppc; then
3376 case $(tolower $cpu) in
3377 601|ppc601|powerpc601)
3378 cpuflags="-mcpu=601"
3381 603*|ppc603*|powerpc603*)
3382 cpuflags="-mcpu=603"
3385 604*|ppc604*|powerpc604*)
3386 cpuflags="-mcpu=604"
3389 g3|75*|ppc75*|powerpc75*)
3390 cpuflags="-mcpu=750"
3393 g4|745*|ppc745*|powerpc745*)
3394 cpuflags="-mcpu=7450"
3397 74*|ppc74*|powerpc74*)
3398 cpuflags="-mcpu=7400"
3401 g5|970|ppc970|powerpc970)
3402 cpuflags="-mcpu=970"
3406 cpuflags="-mcpu=$cpu"
3410 cpuflags="-mcpu=$cpu"
3414 cpuflags="-mcpu=cell"
3419 cpuflags="-mcpu=e500mc"
3423 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3428 cpuflags="-mcpu=8540 -mhard-float"
3434 elif enabled sparc; then
3437 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3438 cpuflags="-mcpu=$cpu"
3440 ultrasparc*|niagara[234])
3441 cpuflags="-mcpu=$cpu"
3445 elif enabled x86; then
3449 cpuflags="-march=$cpu"
3453 # targets that do NOT support nopl and conditional mov (cmov)
3454 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3455 cpuflags="-march=$cpu"
3458 # targets that do support nopl and conditional mov (cmov)
3459 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3460 cpuflags="-march=$cpu"
3464 # targets that do support conditional mov but on which it's slow
3465 pentium4|pentium4m|prescott|nocona)
3466 cpuflags="-march=$cpu"
3474 if [ "$cpu" != generic ]; then
3475 add_cflags $cpuflags
3476 add_asflags $cpuflags
3477 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3480 # compiler sanity check
3482 int main(void){ return 0; }
3484 if test "$?" != 0; then
3485 echo "$cc is unable to create an executable file."
3486 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3487 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3488 echo "Only do this if you know what cross compiling means."
3490 die "C compiler test failed."
3493 add_cppflags -D_ISOC99_SOURCE
3494 check_cflags -std=c99
3495 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3498 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3502 add_host_cppflags -D_ISOC99_SOURCE
3503 check_host_cflags -std=c99
3504 check_host_cflags -Wall
3505 check_host_cflags -O3
3511 check_code cc "" "int test[2*($expr) - 1]" &&
3512 subarch=$arch64 || subarch=$arch32
3520 check_64bit mips mips64 '_MIPS_SIM > 1'
3524 check_64bit parisc parisc64 'sizeof(void *) > 4'
3528 check_64bit ppc ppc64 'sizeof(void *) > 4'
3532 check_64bit s390 s390x 'sizeof(void *) > 4'
3536 check_64bit sparc sparc64 'sizeof(void *) > 4'
3540 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3541 if test "$subarch" = "x86_64"; then
3548 enabled spic && enable_weak pic
3554 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3555 enabled shared && add_ldflags -Wl,-brtl
3559 enable section_data_rel_ro
3560 SLIB_INSTALL_NAME='$(SLIBNAME)'
3562 # soname not set on purpose
3566 prefix_default="/boot/common"
3567 network_extralibs="-lnetwork"
3571 SHFLAGS='-shared -Wl,-h,$$(@F)'
3572 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3573 network_extralibs="-lsocket -lnsl"
3574 # When using suncc to build, the Solaris linker will mark
3575 # an executable with each instruction set encountered by
3576 # the Solaris assembler. As our libraries contain their own
3577 # guards for processor-specific code, instead suppress
3578 # generation of the HWCAPS ELF section on Solaris x86 only.
3579 enabled_all suncc x86 &&
3580 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3581 add_ldflags -Wl,-M,mapfile
3582 nm_default='nm -P -g'
3586 oss_indev_extralibs="-lossaudio"
3587 oss_outdev_extralibs="-lossaudio"
3592 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3594 oss_indev_extralibs="-lossaudio"
3595 oss_outdev_extralibs="-lossaudio"
3603 add_extralibs -lpoll -lgnugetopt
3606 enabled ppc && add_asflags -force_cpusubtype_ALL
3607 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3608 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3609 add_ldflags -Wl,-dynamic,-search_paths_first
3611 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3612 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3614 enabled x86_64 && objformat="macho64"
3615 enabled_any pic shared ||
3616 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3619 if test $target_os = "mingw32ce"; then
3625 if enabled x86_64; then
3626 LIBTARGET="i386:x86-64"
3627 elif enabled arm; then
3630 check_ldflags -Wl,--nxcompat
3631 check_ldflags -Wl,--dynamicbase
3632 shlibdir_default="$bindir_default"
3635 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3636 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3637 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3638 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3640 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3641 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3642 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3644 dlltool="${cross_prefix}dlltool"
3650 if enabled shared; then
3651 # Link to the import library instead of the normal static library
3654 # Cannot build both shared and static libs with MSVC or icl.
3657 shlibdir_default="$bindir_default"
3660 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3661 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3662 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3663 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3665 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3666 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3667 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3674 shlibdir_default="$bindir_default"
3677 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3678 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3679 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3681 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3682 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3686 *-dos|freedos|opendos)
3687 network_extralibs="-lsocket"
3690 add_cppflags -U__STRICT_ANSI__
3694 enable section_data_rel_ro
3698 ranlib="echo ignoring ranlib"
3703 add_cppflags -D_GNU_SOURCE
3704 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3705 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3709 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3710 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3711 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3712 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3713 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3714 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3715 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3716 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3717 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3718 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3722 add_cppflags -D_BSD_SOURCE
3727 add_cppflags -D_QNX_SOURCE
3728 network_extralibs="-lsocket"
3733 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3734 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3735 add_ldflags -Wl,--target1-abs,--no-undefined \
3736 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3737 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3738 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3739 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3740 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3743 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3748 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3749 -D_REENTRANT_SOURCE \
3750 -D_RESEARCH_SOURCE \
3753 add_compat strtod.o strtod=avpriv_strtod
3754 network_extralibs='-lbsd'
3755 exeobjs=compat/plan9/main.o
3761 die "Unknown OS '$target_os'."
3765 # determine libc flavour
3770 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3771 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3772 eval ${pfx}libc_type=uclibc
3773 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3774 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3775 eval ${pfx}libc_type=glibc
3776 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3777 # MinGW headers can be installed on Cygwin, so check for newlib first.
3778 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3779 eval ${pfx}libc_type=newlib
3780 add_${pfx}cppflags -U__STRICT_ANSI__
3781 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3782 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3783 eval ${pfx}libc_type=mingw64
3784 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3785 eval test \$${pfx_no_}cc_type = "gcc" &&
3786 add_${pfx}cppflags -D__printf__=__gnu_printf__
3787 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3788 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3789 eval ${pfx}libc_type=mingw32
3790 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3791 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3792 die "ERROR: MinGW32 runtime version must be >= 3.15."
3793 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3794 eval test \$${pfx_no_}cc_type = "gcc" &&
3795 add_${pfx}cppflags -D__printf__=__gnu_printf__
3796 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3797 eval ${pfx}libc_type=msvcrt
3798 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3799 if [ "$pfx" = host_ ]; then
3800 add_host_cppflags -Dsnprintf=_snprintf
3802 add_compat strtod.o strtod=avpriv_strtod
3803 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3804 _snprintf=avpriv_snprintf \
3805 vsnprintf=avpriv_vsnprintf
3808 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3809 # 0x601 by default unless something else is set by the user.
3810 # This can easily lead to us detecting functions only present
3811 # in such new versions and producing binaries requiring windows 7.0.
3812 # Therefore explicitly set the default to XP unless the user has
3813 # set something else on the command line.
3814 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3815 # family. For these cases, configure is free to use any functions
3816 # found in the SDK headers by default. (Alternatively, we could force
3817 # _WIN32_WINNT to 0x0602 in that case.)
3818 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3819 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3820 #ifdef WINAPI_FAMILY
3821 #include <winapifamily.h>
3822 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3827 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3828 eval ${pfx}libc_type=klibc
3829 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3830 eval ${pfx}libc_type=bionic
3831 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3832 eval ${pfx}libc_type=solaris
3833 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3835 eval ${pfx}libc_type=default
3836 add_${pfx}cppflags -D_DEFAULT_SOURCE
3841 test -n "$libc_type" && enable libc_$libc_type
3843 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3847 add_compat strtod.o strtod=avpriv_strtod
3851 # hacks for compiler/libc/os combinations
3853 if enabled_all tms470 libc_glibc; then
3854 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3855 add_cppflags -D__USER_LABEL_PREFIX__=
3856 add_cppflags -D__builtin_memset=memset
3857 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3858 add_cflags -pds=48 # incompatible redefinition of macro
3861 if enabled_all ccc libc_glibc; then
3862 add_ldflags -Wl,-z,now # calls to libots crash without this
3865 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3866 add_cppflags '-I\$(SRC_PATH)/compat/float'
3869 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3872 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3874 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3876 set_default $PATHS_LIST
3879 # we need to build at least one lib type
3880 if ! enabled_any static shared; then
3882 At least one library type must be built.
3883 Specify --enable-static to build the static libraries or --enable-shared to
3884 build the shared libraries as well. To only build the shared libraries specify
3885 --disable-static in addition to --enable-shared.
3890 die_license_disabled() {
3891 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3894 die_license_disabled gpl libcdio
3895 die_license_disabled gpl libx264
3896 die_license_disabled gpl libx265
3897 die_license_disabled gpl libxavs
3898 die_license_disabled gpl libxvid
3899 die_license_disabled gpl x11grab
3901 die_license_disabled nonfree libfaac
3902 die_license_disabled nonfree libfdk_aac
3903 die_license_disabled nonfree nvenc
3904 die_license_disabled nonfree openssl
3906 die_license_disabled version3 libopencore_amrnb
3907 die_license_disabled version3 libopencore_amrwb
3908 die_license_disabled version3 libvo_aacenc
3909 die_license_disabled version3 libvo_amrwbenc
3911 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3913 disabled optimizations || check_cflags -fomit-frame-pointer
3916 disabled pic && return
3919 case "$target_os" in
3929 enabled pic && enable_weak_pic
3931 check_cc <<EOF || die "Symbol mangling check failed."
3934 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3935 extern_prefix=${sym%%ff_extern*}
3937 check_cc <<EOF && enable_weak inline_asm
3938 void foo(void) { __asm__ volatile ("" ::); }
3942 for restrict_keyword in restrict __restrict__ __restrict; do
3943 check_cc <<EOF && _restrict=$restrict_keyword && break
3944 void foo(char * $restrict_keyword p);
3948 check_cc <<EOF && enable pragma_deprecated
3949 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3952 check_cc <<EOF && enable attribute_packed
3953 struct { int x; } __attribute__((packed)) x;
3956 check_cc <<EOF && enable attribute_may_alias
3957 union { int x; } __attribute__((may_alias)) x;
3960 check_cc <<EOF || die "endian test failed"
3961 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3963 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3966 log "check_gas using '$as' as AS"
3967 # :vararg is used on aarch64, arm and ppc altivec
3968 check_as <<EOF || return 1
3969 .macro m n, y:vararg=0
3974 # .altmacro is only used in arm asm
3975 ! enabled arm || check_as <<EOF || return 1
3982 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3984 enabled_any arm aarch64 && nogas=die
3985 enabled_all ppc altivec && nogas=warn
3989 arm*) gaspp_as_type=armasm; as_noop=-h ;;
3990 gcc) gaspp_as_type=gas ;;
3991 *) gaspp_as_type=$as_type ;;
3994 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3996 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3997 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3999 if ! check_gas ; then
4002 $nogas "GNU assembler not found, install/update gas-preprocessor"
4005 check_as <<EOF && enable as_func
4011 check_inline_asm inline_asm_labels '"1:\n"'
4013 if enabled aarch64; then
4014 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4015 # internal assembler in clang 3.3 does not support this instruction
4016 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4017 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4019 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4021 elif enabled alpha; then
4025 elif enabled arm; then
4027 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4028 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4029 enabled thumb && check_cflags -mthumb || check_cflags -marm
4031 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4033 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4035 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4036 case "${cross_prefix:-$cc}" in
4037 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4038 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4039 __asm__ (".eabi_attribute 28, 1");
4040 int main(void) { return 0; }
4043 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4046 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4047 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4048 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4049 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4050 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4051 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4053 [ $target_os = linux ] || [ $target_os = android ] ||
4054 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4057 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4059 check_as <<EOF && enable as_dn_directive
4064 # llvm's integrated assembler supports .object_arch from llvm 3.5
4065 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4069 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4071 elif enabled mips; then
4073 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4075 # make sure that only an instruction set is enabled
4076 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4078 if enabled mips64; then
4079 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4080 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4081 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4083 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4084 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4085 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4088 elif enabled parisc; then
4090 if enabled gcc; then
4091 case $($cc -dumpversion) in
4092 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4096 elif enabled ppc; then
4098 enable local_aligned_8 local_aligned_16
4100 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4101 check_inline_asm ibm_asm '"add 0, 0, 0"'
4102 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4103 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4105 # AltiVec flags: The FSF version of GCC differs from the Apple version
4106 if enabled altivec; then
4107 check_cflags -maltivec -mabi=altivec &&
4108 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4109 check_cflags -faltivec
4111 # check if our compiler supports Motorola AltiVec C API
4112 check_cc <<EOF || disable altivec
4115 vector signed int v1 = (vector signed int) { 0 };
4116 vector signed int v2 = (vector signed int) { 1 };
4117 v1 = vec_add(v1, v2);
4122 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4125 if enabled vsx; then
4126 check_cflags -mvsx &&
4127 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4130 if enabled power8; then
4131 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4134 elif enabled x86; then
4136 check_builtin rdtsc intrin.h "__rdtsc()"
4137 check_builtin mm_empty mmintrin.h "_mm_empty()"
4139 enable local_aligned_8 local_aligned_16
4141 # check whether EBP is available on x86
4142 # As 'i' is stored on the stack, this program will crash
4143 # if the base pointer is used to access it because the
4144 # base pointer is cleared in the inline assembly code.
4145 check_exec_crash <<EOF && enable ebp_available
4147 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4151 # check whether EBX is available on x86
4152 check_inline_asm ebx_available '""::"b"(0)' &&
4153 check_inline_asm ebx_available '"":::"%ebx"'
4155 # check whether xmm clobbers are supported
4156 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4158 # check whether binutils is new enough to compile SSSE3/MMXEXT
4159 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4160 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4162 if ! disabled_any asm mmx yasm; then
4163 if check_cmd $yasmexe --version; then
4164 enabled x86_64 && yasm_extra="-m amd64"
4165 yasm_debug="-g dwarf2"
4166 elif check_cmd nasm -v; then
4168 yasm_debug="-g -F dwarf"
4169 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4172 YASMFLAGS="-f $objformat $yasm_extra"
4173 enabled pic && append YASMFLAGS "-DPIC"
4174 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4175 case "$objformat" in
4176 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4179 check_yasm "movbe ecx, [5]" && enable yasm ||
4180 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4181 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4182 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4183 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4184 check_yasm "CPU amdnop" || disable cpunop
4188 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4195 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4197 check_ldflags -Wl,--as-needed
4199 if check_func dlopen; then
4201 elif check_func dlopen -ldl; then
4205 if ! disabled network; then
4206 check_func getaddrinfo $network_extralibs
4207 check_func getservbyport $network_extralibs
4208 check_func inet_aton $network_extralibs
4210 check_type netdb.h "struct addrinfo"
4211 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4212 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4213 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4214 check_type poll.h "struct pollfd"
4215 check_type netinet/sctp.h "struct sctp_event_subscribe"
4216 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4217 check_type netinet/in.h "struct sockaddr_in6"
4218 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4219 check_type "sys/types.h sys/socket.h" socklen_t
4221 # Prefer arpa/inet.h over winsock2
4222 if check_header arpa/inet.h ; then
4223 check_func closesocket
4224 elif check_header winsock2.h ; then
4225 check_func_headers winsock2.h closesocket -lws2 &&
4226 network_extralibs="-lws2" ||
4227 { check_func_headers winsock2.h closesocket -lws2_32 &&
4228 network_extralibs="-lws2_32"; } || disable winsock2_h network
4229 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4231 check_type ws2tcpip.h socklen_t
4232 check_type ws2tcpip.h "struct addrinfo"
4233 check_type ws2tcpip.h "struct group_source_req"
4234 check_type ws2tcpip.h "struct ip_mreq_source"
4235 check_type ws2tcpip.h "struct ipv6_mreq"
4236 check_type winsock2.h "struct pollfd"
4237 check_struct winsock2.h "struct sockaddr" sa_len
4238 check_type ws2tcpip.h "struct sockaddr_in6"
4239 check_type ws2tcpip.h "struct sockaddr_storage"
4245 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4246 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4247 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4248 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4250 case "$custom_allocator" in
4252 # jemalloc by default does not use a prefix
4253 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4256 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4261 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4262 check_func ${malloc_prefix}memalign && enable memalign
4263 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4265 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4266 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4270 check_func gethrtime
4272 check_func getrusage
4273 check_func gettimeofday
4276 check_func localtime_r
4277 check_func mach_absolute_time
4281 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4282 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4283 check_func sched_getaffinity
4284 check_func setrlimit
4285 check_func strerror_r
4290 check_func_headers io.h setmode
4291 check_func_headers stdlib.h getenv
4293 check_func_headers windows.h CoTaskMemFree -lole32
4294 check_func_headers windows.h GetProcessAffinityMask
4295 check_func_headers windows.h GetProcessTimes
4296 check_func_headers windows.h GetSystemTimeAsFileTime
4297 check_func_headers windows.h LoadLibrary
4298 check_func_headers windows.h MapViewOfFile
4299 check_func_headers windows.h SetConsoleTextAttribute
4300 check_func_headers windows.h Sleep
4301 check_func_headers windows.h VirtualAlloc
4302 check_struct windows.h "CONDITION_VARIABLE" Ptr
4304 check_header direct.h
4305 check_header dlfcn.h
4306 check_header d3d11.h
4308 check_header dxva2api.h
4310 check_header mach/mach_time.h
4311 check_header malloc.h
4313 check_header sys/mman.h
4314 check_header sys/param.h
4315 check_header sys/resource.h
4316 check_header sys/select.h
4317 check_header sys/time.h
4318 check_header sys/un.h
4319 check_header unistd.h
4320 check_header valgrind/valgrind.h
4321 check_header vdpau/vdpau.h
4322 check_header vdpau/vdpau_x11.h
4323 check_header VideoDecodeAcceleration/VDADecoder.h
4324 check_header windows.h
4325 check_header X11/extensions/XvMClib.h
4327 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4328 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4329 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4331 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4333 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4334 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4335 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4337 if ! disabled w32threads && ! enabled pthreads; then
4338 check_func_headers "windows.h process.h" _beginthreadex &&
4339 enable w32threads || disable w32threads
4342 # check for some common methods of building with pthread support
4343 # do this before the optional library checks as some of them require pthreads
4344 if ! disabled pthreads && ! enabled w32threads; then
4346 if check_func pthread_join -pthread; then
4348 add_extralibs -pthread
4349 elif check_func pthread_join -pthreads; then
4350 add_cflags -pthreads
4351 add_extralibs -pthreads
4352 elif check_func pthread_join -lpthreadGC2; then
4353 add_extralibs -lpthreadGC2
4354 elif check_lib pthread.h pthread_join -lpthread; then
4356 elif ! check_func pthread_join; then
4361 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4362 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4364 check_lib math.h sin -lm && LIBM="-lm"
4365 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4371 for func in $MATH_FUNCS; do
4372 eval check_mathfunc $func \${${func}_args:-1}
4375 # these are off by default, so fail if requested and not available
4376 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4377 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4378 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4379 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4380 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4381 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4382 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4383 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4384 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4385 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4386 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4387 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4388 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4389 done || die "ERROR: libgsm not found"; }
4390 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4391 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4392 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4393 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4394 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4395 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4396 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4397 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4398 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4399 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4400 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4401 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4402 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4403 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4404 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4405 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4406 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4407 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4408 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4409 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4410 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4411 enabled libvpx_vp8_decoder && {
4412 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4413 disable libvpx_vp8_decoder;
4415 enabled libvpx_vp8_encoder && {
4416 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4417 disable libvpx_vp8_encoder;
4419 enabled libvpx_vp9_decoder && {
4420 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4421 disable libvpx_vp9_decoder;
4423 enabled libvpx_vp9_encoder && {
4424 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4425 disable libvpx_vp9_encoder;
4427 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4428 die "libvpx enabled but no supported decoders found"
4431 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4432 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4433 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4434 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4435 die "ERROR: libx264 version must be >= 0.118."; } &&
4436 { check_cpp_condition x264.h "X264_MPEG2" &&
4438 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4439 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4440 die "ERROR: libx265 version must be >= 57."; }
4441 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4442 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4443 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4444 { ! enabled cross_compile && {
4445 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4446 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4447 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4448 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4449 die "ERROR: mmal not found"; }
4450 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4451 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4452 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4453 die "ERROR: openssl not found"; }
4455 if enabled gnutls; then
4456 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4457 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4461 if enabled libdc1394; then
4462 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4463 enable libdc1394_2; } ||
4464 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4465 enable libdc1394_1; } ||
4466 die "ERROR: No version of libdc1394 found "
4469 if enabled nvenc; then
4470 check_header cuda.h || die "ERROR: cuda.h not found.";
4471 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4472 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4473 die "ERROR: NVENC API version 4 or older is not supported";
4476 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4477 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4478 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4482 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4483 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4485 check_header linux/fb.h
4486 check_header linux/videodev2.h
4487 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4489 check_header sys/videoio.h
4491 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4492 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4493 # w32api 3.12 had it defined wrong
4494 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4496 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4497 { check_header dev/bktr/ioctl_meteor.h &&
4498 check_header dev/bktr/ioctl_bt848.h; } ||
4499 { check_header machine/ioctl_meteor.h &&
4500 check_header machine/ioctl_bt848.h; } ||
4501 { check_header dev/video/meteor/ioctl_meteor.h &&
4502 check_header dev/video/bktr/ioctl_bt848.h; } ||
4503 check_header dev/ic/bt8xx.h
4505 check_header sndio.h
4506 check_header sys/soundcard.h
4507 check_header soundcard.h
4509 enabled_any alsa_indev alsa_outdev &&
4510 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4512 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4513 check_func jack_port_get_latency_range -ljack
4515 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4517 if enabled libcdio; then
4518 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4519 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4520 die "ERROR: No usable libcdio/cdparanoia found"
4523 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4525 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4526 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4527 enabled libxcb && die "ERROR: libxcb not found";
4528 } && disable x11grab && enable libxcb
4530 disabled libxcb_shm ||
4531 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4532 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4533 } && check_header sys/shm.h && enable libxcb_shm
4535 disabled libxcb_xfixes ||
4536 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4537 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4538 } && enable libxcb_xfixes
4540 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4541 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4544 if enabled x11grab; then
4545 enabled xlib || die "ERROR: Xlib not found"
4546 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4547 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4550 enabled vaapi && enabled xlib &&
4551 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4555 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4558 enabled vdpau && enabled xlib &&
4559 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4560 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4563 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4565 # add some useful compiler flags if supported
4566 check_cflags -Wdeclaration-after-statement
4568 check_cflags -Wdisabled-optimization
4569 check_cflags -Wpointer-arith
4570 check_cflags -Wredundant-decls
4571 check_cflags -Wcast-qual
4572 check_cflags -Wwrite-strings
4573 check_cflags -Wtype-limits
4574 check_cflags -Wundef
4575 check_cflags -Wmissing-prototypes
4576 check_cflags -Wstrict-prototypes
4577 enabled extra_warnings && check_cflags -Winline
4579 check_disable_warning(){
4580 warning_flag=-W${1#-Wno-}
4581 test_cflags $warning_flag && add_cflags $1
4584 check_disable_warning -Wno-parentheses
4585 check_disable_warning -Wno-switch
4586 check_disable_warning -Wno-format-zero-length
4587 check_disable_warning -Wno-pointer-sign
4589 # add some linker flags
4590 check_ldflags -Wl,--warn-common
4591 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4592 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4593 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4595 # add some strip flags
4596 # -wN '..@*' is more selective than -x, but not available everywhere.
4597 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4599 enabled neon_clobber_test &&
4600 check_ldflags -Wl,--wrap,avcodec_open2 \
4601 -Wl,--wrap,avcodec_decode_audio4 \
4602 -Wl,--wrap,avcodec_decode_video2 \
4603 -Wl,--wrap,avcodec_decode_subtitle2 \
4604 -Wl,--wrap,avcodec_encode_audio2 \
4605 -Wl,--wrap,avcodec_encode_video2 \
4606 -Wl,--wrap,avcodec_encode_subtitle \
4607 -Wl,--wrap,avresample_convert ||
4608 disable neon_clobber_test
4610 enabled xmm_clobber_test &&
4611 check_ldflags -Wl,--wrap,avcodec_open2 \
4612 -Wl,--wrap,avcodec_decode_audio4 \
4613 -Wl,--wrap,avcodec_decode_video2 \
4614 -Wl,--wrap,avcodec_decode_subtitle2 \
4615 -Wl,--wrap,avcodec_encode_audio2 \
4616 -Wl,--wrap,avcodec_encode_video2 \
4617 -Wl,--wrap,avcodec_encode_subtitle \
4618 -Wl,--wrap,avresample_convert \
4619 -Wl,--wrap,sws_scale ||
4620 disable xmm_clobber_test
4623 if test_ldflags -Wl,--version-script,$TMPV; then
4624 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4625 check_cc <<EOF && enable symver_asm_label
4626 void ff_foo(void) __asm__ ("av_foo@VERSION");
4627 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4629 check_cc <<EOF && enable symver_gnu_asm
4630 __asm__(".symver ff_foo,av_foo@VERSION");
4631 void ff_foo(void) {}
4635 if [ -z "$optflags" ]; then
4636 if enabled small; then
4637 optflags=$cflags_size
4638 elif enabled optimizations; then
4639 optflags=$cflags_speed
4641 optflags=$cflags_noopt
4647 enabled lto && check_ldflags "$@"
4651 if enabled lto; then
4652 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4654 check_ldflags -flto $cpuflags
4657 check_optflags $optflags
4658 check_optflags -fno-math-errno
4659 check_optflags -fno-signed-zeros
4661 if enabled icc; then
4662 # Just warnings, no remarks
4664 # -wd: Disable following warnings
4665 # 144, 167, 556: -Wno-pointer-sign
4666 # 1292: attribute "foo" ignored
4667 # 1419: external declaration in primary source file
4668 # 10006: ignoring unknown option -fno-signed-zeros
4669 # 10148: ignoring unknown option -Wno-parentheses
4670 # 10156: ignoring option '-W'; no argument required
4671 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4672 # 11030: Warning unknown option --as-needed
4673 # 10156: ignoring option '-export'; no argument required
4674 check_ldflags -wd10156,11030
4675 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4676 enable ebp_available
4677 if enabled x86_32; then
4678 icc_version=$($cc -dumpversion)
4679 test ${icc_version%%.*} -ge 11 &&
4680 check_cflags -falign-stack=maintain-16-byte ||
4681 disable aligned_stack
4683 elif enabled ccc; then
4684 # disable some annoying warnings
4685 add_cflags -msg_disable bitnotint
4686 add_cflags -msg_disable mixfuncvoid
4687 add_cflags -msg_disable nonstandcast
4688 add_cflags -msg_disable unsupieee
4689 elif enabled gcc; then
4690 check_optflags -fno-tree-vectorize
4691 check_cflags -Werror=implicit-function-declaration
4692 check_cflags -Werror=missing-prototypes
4693 check_cflags -Werror=return-type
4694 check_cflags -Werror=declaration-after-statement
4695 check_cflags -Werror=vla
4696 check_cflags -Werror=format-security
4697 check_cflags -fdiagnostics-color=auto
4698 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4699 elif enabled llvm_gcc; then
4700 check_cflags -mllvm -stack-alignment=16
4701 elif enabled clang; then
4702 check_cflags -mllvm -stack-alignment=16
4703 check_cflags -Qunused-arguments
4704 check_cflags -Werror=implicit-function-declaration
4705 check_cflags -Werror=missing-prototypes
4706 check_cflags -Werror=return-type
4707 elif enabled cparser; then
4708 add_cflags -Wno-missing-variable-declarations
4709 add_cflags -Wno-empty-statement
4710 elif enabled armcc; then
4711 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4712 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4713 # 2523: use of inline assembly is deprecated
4714 add_cflags -W${armcc_opt},--diag_suppress=2523
4715 add_cflags -W${armcc_opt},--diag_suppress=1207
4716 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4717 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4718 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4719 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4720 elif enabled tms470; then
4721 add_cflags -pds=824 -pds=837
4723 elif enabled pathscale; then
4724 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4725 elif enabled_any msvc icl; then
4726 enabled x86_32 && disable aligned_stack
4727 enabled_all x86_32 debug && add_cflags -Oy-
4728 enabled debug && add_ldflags -debug
4729 enable pragma_deprecated
4730 if enabled icl; then
4731 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4732 # (correctly) on icl 13.x.
4733 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4734 add_cflags -Qansi-alias
4735 # icl will pass the inline asm tests but inline asm is currently
4736 # not supported (build will fail)
4739 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4740 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4741 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4742 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4743 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4744 # MSVC 2013 and newer can handle it fine.
4745 # If this declspec fails, force including stdlib.h before the restrict redefinition
4746 # happens in config.h.
4747 if [ $_restrict != restrict ]; then
4748 check_cc <<EOF || add_cflags -FIstdlib.h
4749 __declspec($_restrict) void* foo(int);
4752 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4755 for pfx in "" host_; do
4756 varname=${pfx%_}cc_type
4757 eval "type=\$$varname"
4758 if [ $type = "msvc" ]; then
4759 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4760 static inline int foo(int a) { return a; }
4767 add_asflags -Qunused-arguments
4773 check_ldflags -Qunused-arguments
4779 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4782 add_cppflags -Dmain=plan9_main
4786 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4788 check_deps $CONFIG_LIST \
4793 enabled_all dxva2 CoTaskMemFree &&
4794 prepend avconv_libs $($ldflags_filter "-lole32") &&
4797 ! enabled_any memalign posix_memalign aligned_malloc &&
4798 enabled simd_align_16 && enable memalign_hack
4800 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4802 for thread in $THREADS_LIST; do
4803 if enabled $thread; then
4804 test -n "$thread_type" &&
4805 die "ERROR: Only one thread type must be selected." ||
4806 thread_type="$thread"
4810 enabled zlib && add_cppflags -DZLIB_CONST
4812 # conditional library dependencies, in linking order
4813 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
4814 enabled resample_filter && prepend avfilter_deps "avresample"
4815 enabled scale_filter && prepend avfilter_deps "swscale"
4817 enabled opus_decoder && prepend avcodec_deps "avresample"
4821 eval "deps=\$$lib_deps"
4822 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4826 map 'expand_deps $v' $LIBRARY_LIST
4828 echo "install prefix $prefix"
4829 echo "source path $source_path"
4830 echo "C compiler $cc"
4831 echo "C library $libc_type"
4832 if test "$host_cc" != "$cc"; then
4833 echo "host C compiler $host_cc"
4834 echo "host C library $host_libc_type"
4836 echo "ARCH $arch ($cpu)"
4837 if test "$build_suffix" != ""; then
4838 echo "build suffix $build_suffix"
4840 if test "$extra_version" != ""; then
4841 echo "version string suffix $extra_version"
4843 echo "big-endian ${bigendian-no}"
4844 echo "runtime cpu detection ${runtime_cpudetect-no}"
4845 if enabled x86; then
4846 echo "${yasmexe} ${yasm-no}"
4847 echo "MMX enabled ${mmx-no}"
4848 echo "MMXEXT enabled ${mmxext-no}"
4849 echo "3DNow! enabled ${amd3dnow-no}"
4850 echo "3DNow! extended enabled ${amd3dnowext-no}"
4851 echo "SSE enabled ${sse-no}"
4852 echo "SSSE3 enabled ${ssse3-no}"
4853 echo "AVX enabled ${avx-no}"
4854 echo "XOP enabled ${xop-no}"
4855 echo "FMA3 enabled ${fma3-no}"
4856 echo "FMA4 enabled ${fma4-no}"
4857 echo "i686 features enabled ${i686-no}"
4858 echo "CMOV is fast ${fast_cmov-no}"
4859 echo "EBX available ${ebx_available-no}"
4860 echo "EBP available ${ebp_available-no}"
4862 if enabled aarch64; then
4863 echo "NEON enabled ${neon-no}"
4864 echo "VFP enabled ${vfp-no}"
4866 if enabled arm; then
4867 echo "ARMv5TE enabled ${armv5te-no}"
4868 echo "ARMv6 enabled ${armv6-no}"
4869 echo "ARMv6T2 enabled ${armv6t2-no}"
4870 echo "VFP enabled ${vfp-no}"
4871 echo "NEON enabled ${neon-no}"
4873 if enabled ppc; then
4874 echo "AltiVec enabled ${altivec-no}"
4875 echo "VSX enabled ${vsx-no}"
4876 echo "POWER8 enabled ${power8-no}"
4877 echo "PPC 4xx optimizations ${ppc4xx-no}"
4878 echo "dcbzl available ${dcbzl-no}"
4880 echo "debug symbols ${debug-no}"
4881 echo "optimize for size ${small-no}"
4882 echo "optimizations ${optimizations-no}"
4883 echo "static ${static-no}"
4884 echo "shared ${shared-no}"
4885 echo "new filter support ${avfilter-no}"
4886 echo "network support ${network-no}"
4887 echo "threading support ${thread_type-no}"
4888 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4889 echo "SDL support ${sdl-no}"
4890 test -n "$random_seed" &&
4891 echo "random seed ${random_seed}"
4894 echo "External libraries:"
4895 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4898 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4899 echo "Enabled ${type}s:"
4900 eval list=\$$(toupper $type)_LIST
4901 print_enabled '_*' $list | print_3_columns
4905 license="LGPL version 2.1 or later"
4906 if enabled nonfree; then
4907 license="nonfree and unredistributable"
4908 elif enabled gplv3; then
4909 license="GPL version 3 or later"
4910 elif enabled lgplv3; then
4911 license="LGPL version 3 or later"
4912 elif enabled gpl; then
4913 license="GPL version 2 or later"
4916 echo "License: $license"
4918 echo "Creating config.mak and config.h..."
4920 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4922 config_files="$TMPH config.mak"
4924 cat > config.mak <<EOF
4925 # Automatically generated by configure - do not modify!
4926 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4928 LIBDIR=\$(DESTDIR)$libdir
4929 SHLIBDIR=\$(DESTDIR)$shlibdir
4930 INCDIR=\$(DESTDIR)$incdir
4931 BINDIR=\$(DESTDIR)$bindir
4932 DATADIR=\$(DESTDIR)$datadir
4933 DOCDIR=\$(DESTDIR)$docdir
4934 MANDIR=\$(DESTDIR)$mandir
4935 SRC_PATH=$source_path
4938 INTRINSICS=$intrinsics
4943 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4945 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4967 LDEXEFLAGS=$LDEXEFLAGS
4968 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4969 STRIPFLAGS=$STRIPFLAGS
4970 YASMFLAGS=$YASMFLAGS
4971 BUILDSUF=$build_suffix
4979 EXTRA_VERSION=$extra_version
4981 CCDEP_FLAGS=$CCDEP_FLAGS
4983 ASDEP_FLAGS=$ASDEP_FLAGS
4984 CC_DEPFLAGS=$CC_DEPFLAGS
4985 AS_DEPFLAGS=$AS_DEPFLAGS
4988 HOSTCFLAGS=$host_cflags
4989 HOSTCPPFLAGS=$host_cppflags
4990 HOSTEXESUF=$HOSTEXESUF
4991 HOSTLDFLAGS=$host_ldflags
4994 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4995 HOSTCCDEP=$HOSTCCDEP
4996 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4997 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5001 TARGET_EXEC=$target_exec $target_exec_args
5002 TARGET_PATH=$target_path
5003 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5004 CFLAGS-avplay=$sdl_cflags
5005 ZLIB=$($ldflags_filter -lz)
5006 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5007 EXTRALIBS=$extralibs
5008 COMPAT_OBJS=$compat_objs
5011 LIBTARGET=${LIBTARGET}
5012 SLIBNAME=${SLIBNAME}
5013 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5014 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5015 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5016 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5017 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5018 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5019 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5020 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5021 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5026 name=$(toupper $lcname)
5027 file=$source_path/$lcname/version.h
5028 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5029 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5030 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5031 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5032 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5035 map 'get_version $v' $LIBRARY_LIST
5037 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5039 print_program_libs(){
5040 eval "program_libs=\$${1}_libs"
5041 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5044 map 'print_program_libs $v' $PROGRAM_LIST
5047 /* Automatically generated by configure - do not modify! */
5048 #ifndef LIBAV_CONFIG_H
5049 #define LIBAV_CONFIG_H
5050 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5051 #define LIBAV_LICENSE "$(c_escape $license)"
5052 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5053 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5054 #define restrict $_restrict
5055 #define EXTERN_PREFIX "${extern_prefix}"
5056 #define EXTERN_ASM ${extern_prefix}
5057 #define SLIBSUF "$SLIBSUF"
5060 test -n "$malloc_prefix" &&
5061 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5063 if enabled yasm; then
5064 append config_files $TMPASM
5068 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5070 print_config ARCH_ "$config_files" $ARCH_LIST
5071 print_config HAVE_ "$config_files" $HAVE_LIST
5072 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5076 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5078 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5079 cp_if_changed $TMPH config.h
5082 enabled yasm && cp_if_changed $TMPASM config.asm
5085 /* Generated by ffconf */
5086 #ifndef AVUTIL_AVCONFIG_H
5087 #define AVUTIL_AVCONFIG_H
5090 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5092 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5094 cp_if_changed $TMPH libavutil/avconfig.h
5096 test -n "$WARNINGS" && printf "\n$WARNINGS"
5098 # build pkg-config files
5101 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5104 pkgconfig_generate(){
5106 shortname=${name#lib}${build_suffix}
5110 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5111 requires=${requires%, }
5112 enabled ${name#lib} || return 0
5114 cat <<EOF > $name/$name.pc
5116 exec_prefix=\${prefix}
5121 Description: $comment
5123 Requires: $(enabled shared || echo $requires)
5124 Requires.private: $(enabled shared && echo $requires)
5126 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5127 Libs.private: $(enabled shared && echo $libs)
5128 Cflags: -I\${includedir}
5130 cat <<EOF > $name/$name-uninstalled.pc
5133 libdir=\${pcfiledir}
5134 includedir=${source_path}
5137 Description: $comment
5141 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5142 Cflags: -I\${includedir}
5146 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5147 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5148 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5149 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5150 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5151 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5152 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"