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 --disable-symver disable symbol versioning
272 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
273 --disable-safe-bitstream-reader
274 disable buffer boundary checking in bitreaders
275 (faster, but may crash)
276 --enable-memalign-hack emulate memalign, interferes with memory debuggers
277 --enable-sram allow use of on-chip SRAM
279 Optimization options (experts only):
280 --disable-asm disable all assembly optimizations
281 --disable-altivec disable AltiVec optimizations
282 --disable-vsx disable VSX optimizations
283 --disable-power8 disable POWER8 optimizations
284 --disable-amd3dnow disable 3DNow! optimizations
285 --disable-amd3dnowext disable 3DNow! extended optimizations
286 --disable-mmx disable MMX optimizations
287 --disable-mmxext disable MMXEXT optimizations
288 --disable-sse disable SSE optimizations
289 --disable-sse2 disable SSE2 optimizations
290 --disable-sse3 disable SSE3 optimizations
291 --disable-ssse3 disable SSSE3 optimizations
292 --disable-sse4 disable SSE4 optimizations
293 --disable-sse42 disable SSE4.2 optimizations
294 --disable-avx disable AVX optimizations
295 --disable-xop disable XOP optimizations
296 --disable-fma3 disable FMA3 optimizations
297 --disable-fma4 disable FMA4 optimizations
298 --disable-avx2 disable AVX2 optimizations
299 --disable-armv5te disable armv5te optimizations
300 --disable-armv6 disable armv6 optimizations
301 --disable-armv6t2 disable armv6t2 optimizations
302 --disable-vfp disable VFP optimizations
303 --disable-neon disable NEON optimizations
304 --disable-inline-asm disable use of inline assembly
305 --disable-yasm disable use of nasm/yasm assembly
307 Developer options (useful when working on Libav itself):
308 --disable-debug disable debugging symbols
309 --enable-debug=LEVEL set the debug level [$debuglevel]
310 --disable-optimizations disable compiler optimizations
311 --enable-extra-warnings enable more compiler warnings
312 --samples=PATH location of test samples for FATE, if not set use
313 \$LIBAV_SAMPLES at make invocation time.
314 --enable-neon-clobber-test check NEON registers for clobbering (should be
315 used only for debugging purposes)
316 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
317 should be used only for debugging purposes)
318 --enable-random randomly enable/disable components
320 --enable-random=LIST randomly enable/disable specific components or
321 --disable-random=LIST component groups. LIST is a comma-separated list
322 of NAME[:PROB] entries where NAME is a component
323 (group) and PROB the probability associated with
325 --random-seed=VALUE seed value for --enable/disable-random
326 --disable-valgrind-backtrace do not print a backtrace under Valgrind
327 (only applies to --disable-optimizations builds)
329 NOTE: Object files are built at the place where configure is launched.
337 echo "$@" >> $logfile
342 pr -n -t $1 >> $logfile
353 WARNINGS="${WARNINGS}WARNING: $*\n"
360 If you think configure made a mistake, make sure you are using the latest
361 version from Git. If the latest version fails, report the problem to the
362 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
364 if disabled logging; then
366 Rerun configure with logging enabled (do not use --disable-logging), and
367 include the log this produces with your report.
371 Include the log file "$logfile" produced by configure as this will help
378 # Avoid locale weirdness, besides we really just want to translate ASCII.
380 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
384 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
388 echo "$*" | sed 's/["\\]/\\\0/g'
392 v=$(echo "$1" | sed "s/'/'\\\\''/g")
393 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
398 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
405 eval "case $v in $pat) echo $v ;; esac"
413 eval "case $v in $pat) ;; *) echo $v ;; esac"
420 for v; do eval $m; done
426 for v; do echo ${v}${suffix}; done
441 eval : \${$var:=$value}
446 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
452 eval $(sanitize_var_name "$var")='$*'
456 eval echo \$$(sanitize_var_name "$1")
461 eval level=\${${pvar}_level:=0}
462 eval ${pvar}_${level}="\$$pvar"
463 eval ${pvar}_level=$(($level+1))
469 eval level=\${${pvar}_level:-0}
470 test $level = 0 && continue
471 eval level=$(($level-1))
472 eval $pvar="\${${pvar}_${level}}"
473 eval ${pvar}_level=$level
474 eval unset ${pvar}_${level}
496 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
502 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
508 enabled $var && continue
509 eval sel="\$${var}_select"
510 eval sgs="\$${var}_suggest"
514 enable_deep_weak $sgs
526 disabled $var && continue
535 test "${1#!}" = "$1" && op== || op=!=
536 eval test "x\$${1#!}" $op "xyes"
540 test "${1#!}" = "$1" && op== || op=!=
541 eval test "x\$${1#!}" $op "xno"
546 enabled $opt || return 1
552 disabled $opt || return 1
558 enabled $opt && return 0
564 disabled $opt && return 0
571 eval : \${$opt:=\$${opt}_default}
579 [ $var = $value ] && return 0
587 enabled ${cfg}_checking && die "Circular dependency for $cfg."
588 disabled ${cfg}_checking && continue
589 enable ${cfg}_checking
592 eval dep_all="\$${cfg}_deps"
593 eval dep_any="\$${cfg}_deps_any"
594 eval dep_sel="\$${cfg}_select"
595 eval dep_sgs="\$${cfg}_suggest"
596 eval dep_ifa="\$${cfg}_if"
597 eval dep_ifn="\$${cfg}_if_any"
599 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
600 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
601 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
603 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
604 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
605 enabled_all $dep_all || disable $cfg
606 enabled_any $dep_any || disable $cfg
607 disabled_any $dep_sel && disable $cfg
609 if enabled $cfg; then
611 enable_deep_weak $dep_sgs
614 disable ${cfg}_checking
623 for cfg in $allopts; do
624 enabled $cfg || continue
625 eval dep_extralibs="\$${cfg}_extralibs"
626 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
634 map 'eval echo "$v \${$v:-no}"' "$@" |
635 awk "BEGIN { split(\"$files\", files) }
637 c = \"$pfx\" toupper(\$1);
643 if (file ~ /\\.h\$/) {
644 printf(\"#define %s %d\\n\", c, v) >>file;
645 } else if (file ~ /\\.asm\$/) {
646 printf(\"%%define %s %d\\n\", c, v) >>file;
647 } else if (file ~ /\\.mak\$/) {
648 n = -v ? \"\" : \"!\";
649 printf(\"%s%s=yes\\n\", n, c) >>file;
659 enabled $v && printf "%s\n" ${v%$suf};
666 eval "$var=\"\$$var $*\""
672 eval "$var=\"$* \$$var\""
678 for tok in $(eval echo \$$var); do
679 uniq_list="$(filter_out $tok $uniq_list) $tok"
681 eval "$var=\"${uniq_list}\""
689 append CFLAGS $($cflags_filter "$@")
693 append ASFLAGS $($asflags_filter "$@")
697 append LDFLAGS $($ldflags_filter "$@")
701 append LDEXEFLAGS $($ldflags_filter "$@")
705 append STRIPFLAGS "$@"
709 prepend extralibs $($ldflags_filter "$@")
713 append host_cppflags "$@"
717 append host_cflags $($host_cflags_filter "$@")
721 append host_ldflags $($host_ldflags_filter "$@")
725 append compat_objs $1
727 map 'add_cppflags -D$v' "$@"
732 "$@" >> $logfile 2>&1
736 eval printf '%s\\n' $CC_O
740 eval printf '%s\\n' $CC_E
747 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
754 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
758 eval printf '%s\\n' $AS_O
765 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
769 log check_inline_asm "$@"
774 check_cc "$@" <<EOF && enable $name
775 void foo(void){ __asm__ volatile($code); }
781 check_inline_asm ${1}_inline "\"$2\""
782 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
790 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
794 eval printf '%s\\n' $LD_O
799 flags=$(filter_out '-l*' "$@")
800 libs=$(filter '-l*' "$@")
801 check_cc $($cflags_filter $flags) || return
802 flags=$($ldflags_filter $flags)
803 libs=$($ldflags_filter $libs)
804 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
809 test "${hdr%.h}" = "${hdr}" &&
810 echo "#include $hdr" ||
811 echo "#include <$hdr>"
821 for hdr in $headers; do
824 echo "int main(void) { $code; return 0; }"
825 } | check_$check "$@"
829 log check_cppflags "$@"
830 check_cc "$@" <<EOF && append CPPFLAGS "$@"
837 set -- $($cflags_filter "$@")
844 log check_cflags "$@"
845 test_cflags "$@" && add_cflags "$@"
849 log test_ldflags "$@"
851 int main(void){ return 0; }
856 log check_ldflags "$@"
857 test_ldflags "$@" && add_ldflags "$@"
861 log test_stripflags "$@"
862 # call check_cc to get a fresh TMPO
864 int main(void) { return 0; }
866 check_cmd $strip $STRIPFLAGS "$@" $TMPO
870 log check_stripflags "$@"
871 test_stripflags "$@" && add_stripflags "$@"
875 log check_header "$@"
879 check_cpp "$@" <<EOF && enable_safe $header
890 check_ld "$@" <<EOF && enable $func
892 int main(void){ $func(); }
897 log check_mathfunc "$@"
901 test $narg = 2 && args="f, g" || args="f"
903 check_ld "$@" <<EOF && enable $func
905 float foo(float f, float g) { return $func($args); }
906 int main(void){ return 0; }
910 check_func_headers(){
911 log check_func_headers "$@"
916 for hdr in $headers; do
919 for func in $funcs; do
920 echo "long check_$func(void) { return (long) $func; }"
922 echo "int main(void) { return 0; }"
923 } | check_ld "$@" && enable $funcs && enable_safe $headers
926 check_cpp_condition(){
927 log check_cpp_condition "$@"
934 #error "unsatisfied condition: $condition"
944 check_header $header && check_func $func "$@" && add_extralibs "$@"
952 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
956 log check_pkg_config "$@"
961 check_cmd $pkg_config --exists --print-errors $pkg || return
962 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
963 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
964 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
965 set_safe "${pkg}_cflags" $pkg_cflags &&
966 set_safe "${pkg}_libs" $pkg_libs
970 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
976 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
977 # are safe but may not be available everywhere. Thus we use
978 # raise(SIGTERM) instead. The check is run in a subshell so we
979 # can redirect the "Terminated" message from the shell. SIGBUS
980 # is not defined by standard C so it is used conditionally.
982 (check_exec "$@") >> $logfile 2>&1 <<EOF
984 static void sighandler(int sig){
990 int (*func_ptr)(void) = foo;
992 signal(SIGILL, sighandler);
993 signal(SIGFPE, sighandler);
994 signal(SIGSEGV, sighandler);
996 signal(SIGBUS, sighandler);
1008 disable_safe "$type"
1009 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1013 log check_struct "$@"
1018 disable_safe "${struct}_${member}"
1019 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1020 enable_safe "${struct}_${member}"
1024 log check_builtin "$@"
1030 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1033 check_compile_assert(){
1034 log check_compile_assert "$@"
1040 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1048 check_lib $header $func "$@" || die "ERROR: $name not found"
1056 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1059 require_pkg_config(){
1061 check_pkg_config "$@" || die "ERROR: $pkg not found"
1062 add_cflags $(get_safe "${pkg}_cflags")
1063 add_extralibs $(get_safe "${pkg}_libs")
1067 eval printf '%s\\n' $HOSTCC_E
1071 eval printf '%s\\n' $HOSTCC_O
1075 log check_host_cc "$@"
1078 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1082 log check_host_cpp "$@"
1085 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1088 check_host_cppflags(){
1089 log check_host_cppflags "$@"
1090 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1095 check_host_cflags(){
1096 log check_host_cflags "$@"
1097 set -- $($host_cflags_filter "$@")
1098 check_host_cc "$@" <<EOF && append host_cflags "$@"
1103 check_host_cpp_condition(){
1104 log check_host_cpp_condition "$@"
1108 check_host_cpp "$@" <<EOF
1111 #error "unsatisfied condition: $condition"
1119 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1123 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1124 mkdir -p "$(dirname $2)"
1128 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1129 # system-dependent things.
1147 filter_audio_example
1151 transcode_aac_example
1154 EXTERNAL_LIBRARY_LIST="
1208 safe_bitstream_reader
1262 $EXTERNAL_LIBRARY_LIST
1327 ARCH_EXT_LIST_X86_SIMD="
1355 $ARCH_EXT_LIST_X86_SIMD
1360 ARCH_EXT_LIST_MIPS="
1394 sync_val_compare_and_swap
1412 cdio_paranoia_paranoia_h
1413 dev_bktr_ioctl_bt848_h
1414 dev_bktr_ioctl_meteor_h
1416 dev_video_bktr_ioctl_bt848_h
1417 dev_video_meteor_ioctl_meteor_h
1425 machine_ioctl_bt848_h
1426 machine_ioctl_meteor_h
1490 GetProcessAffinityMask
1491 GetProcessMemoryInfo
1495 GetSystemTimeAsFileTime
1500 jack_port_get_latency_range
1512 SetConsoleTextAttribute
1523 TOOLCHAIN_FEATURES="
1544 CONDITION_VARIABLE_Ptr
1547 struct_group_source_req
1548 struct_ip_mreq_source
1551 struct_rusage_ru_maxrss
1553 struct_sockaddr_sa_len
1554 struct_sockaddr_storage
1555 struct_v4l2_frmivalenum_discrete
1560 $(add_suffix _external $ARCH_EXT_LIST)
1561 $(add_suffix _inline $ARCH_EXT_LIST)
1588 # options emitted with CONFIG_ prefix but not available on the command line
1726 # code dependency declarations
1728 # architecture extensions
1733 armv8_deps="aarch64"
1734 neon_deps_any="aarch64 arm"
1735 intrinsics_neon_deps="neon"
1736 vfp_deps_any="aarch64 arm"
1739 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1747 x86_64_select="i686"
1748 x86_64_suggest="fast_cmov"
1751 amd3dnowext_deps="amd3dnow"
1767 mmx_external_deps="yasm"
1768 mmx_inline_deps="inline_asm"
1769 mmx_suggest="mmx_external mmx_inline"
1771 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1772 eval dep=\$${ext}_deps
1773 eval ${ext}_external_deps='"${dep}_external"'
1774 eval ${ext}_inline_deps='"${dep}_inline"'
1775 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1778 aligned_stack_if_any="aarch64 ppc x86"
1779 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1780 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1781 fast_unaligned_if_any="aarch64 ppc x86"
1782 simd_align_16_if_any="altivec neon sse"
1784 # system capabilities
1785 symver_if_any="symver_asm_label symver_gnu_asm"
1786 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1789 atomics_gcc_if="sync_val_compare_and_swap"
1790 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1791 atomics_win32_if="MemoryBarrier"
1792 atomics_native_if_any="$ATOMICS_LIST"
1793 w32threads_deps="atomics_native"
1794 threads_if_any="$THREADS_LIST"
1798 error_resilience_select="me_cmp"
1799 faandct_deps="faan fdctdsp"
1800 faanidct_deps="faan idctdsp"
1801 intrax8_select="error_resilience"
1804 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1805 mpeg_er_select="error_resilience"
1806 mpegaudio_select="mpegaudiodsp"
1807 mpegaudiodsp_select="dct"
1808 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1809 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1810 nvenc_deps_any="dlopen LoadLibrary"
1811 nvenc_extralibs='$ldl'
1815 # decoders / encoders
1816 aac_decoder_select="imdct15 mdct sinewin"
1817 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1818 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1819 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1820 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1821 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1822 adpcm_g722_decoder_select="g722dsp"
1823 adpcm_g722_encoder_select="g722dsp"
1824 aic_decoder_select="golomb idctdsp"
1825 alac_encoder_select="lpc"
1826 als_decoder_select="bswapdsp"
1827 amrnb_decoder_select="lsp"
1828 amrwb_decoder_select="lsp"
1829 amv_decoder_select="sp5x_decoder"
1830 ape_decoder_select="bswapdsp"
1831 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1832 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1833 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1834 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1835 atrac1_decoder_select="mdct sinewin"
1836 atrac3_decoder_select="mdct"
1837 atrac3p_decoder_select="mdct sinewin"
1838 bink_decoder_select="blockdsp hpeldsp"
1839 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1840 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1841 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1842 cllc_decoder_select="bswapdsp"
1843 comfortnoise_encoder_select="lpc"
1844 cook_decoder_select="audiodsp mdct sinewin"
1845 cscd_decoder_select="lzo"
1846 cscd_decoder_suggest="zlib"
1847 dca_decoder_select="fmtconvert mdct"
1848 dds_decoder_select="texturedsp"
1849 dnxhd_decoder_select="blockdsp idctdsp"
1850 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1851 dvvideo_decoder_select="dvprofile idctdsp"
1852 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1853 dxa_decoder_deps="zlib"
1854 dxv_decoder_select="lzf texturedsp"
1855 eac3_decoder_select="ac3_decoder"
1856 eac3_encoder_select="ac3_encoder"
1857 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1858 eatgq_decoder_select="aandcttables idctdsp"
1859 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1860 exr_decoder_deps="zlib"
1861 ffv1_decoder_select="golomb rangecoder"
1862 ffv1_encoder_select="rangecoder"
1863 ffvhuff_decoder_select="huffyuv_decoder"
1864 ffvhuff_encoder_select="huffyuv_encoder"
1865 fic_decoder_select="golomb"
1866 flac_decoder_select="flacdsp golomb"
1867 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1868 flashsv_decoder_deps="zlib"
1869 flashsv_encoder_deps="zlib"
1870 flashsv2_decoder_deps="zlib"
1871 flv_decoder_select="h263_decoder"
1872 flv_encoder_select="h263_encoder"
1873 fourxm_decoder_select="blockdsp bswapdsp"
1874 fraps_decoder_select="bswapdsp huffman"
1875 g2m_decoder_deps="zlib"
1876 g2m_decoder_select="blockdsp idctdsp jpegtables"
1877 h261_decoder_select="mpeg_er mpegvideo"
1878 h261_encoder_select="aandcttables mpegvideoenc"
1879 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1880 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1881 h263i_decoder_select="h263_decoder"
1882 h263p_encoder_select="h263_encoder"
1883 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1884 h264_decoder_suggest="error_resilience"
1885 h264_nvenc_encoder_deps="nvenc"
1886 h264_qsv_decoder_deps="libmfx"
1887 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1888 h264_qsv_encoder_deps="libmfx"
1889 h264_qsv_encoder_select="qsvenc"
1890 hap_decoder_select="snappy texturedsp"
1891 hap_encoder_deps="libsnappy"
1892 hap_encoder_select="texturedspenc"
1893 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1894 hevc_nvenc_encoder_deps="nvenc"
1895 hevc_qsv_encoder_deps="libmfx"
1896 hevc_qsv_decoder_deps="libmfx"
1897 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1898 hevc_qsv_encoder_select="qsvenc"
1899 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1900 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1901 iac_decoder_select="imc_decoder"
1902 imc_decoder_select="bswapdsp fft mdct sinewin"
1903 indeo3_decoder_select="hpeldsp"
1904 indeo4_decoder_select="ividsp"
1905 indeo5_decoder_select="ividsp"
1906 interplay_video_decoder_select="hpeldsp"
1907 jpegls_decoder_select="golomb mjpeg_decoder"
1908 jpegls_encoder_select="golomb"
1909 jv_decoder_select="blockdsp"
1910 lagarith_decoder_select="huffyuvdsp"
1911 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1912 loco_decoder_select="golomb"
1913 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1914 metasound_decoder_select="lsp mdct sinewin"
1915 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1916 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1917 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1918 mjpegb_decoder_select="mjpeg_decoder"
1919 mlp_decoder_select="mlp_parser"
1920 motionpixels_decoder_select="bswapdsp"
1921 mp1_decoder_select="mpegaudio"
1922 mp1float_decoder_select="mpegaudio"
1923 mp2_decoder_select="mpegaudio"
1924 mp2float_decoder_select="mpegaudio"
1925 mp3_decoder_select="mpegaudio"
1926 mp3adu_decoder_select="mpegaudio"
1927 mp3adufloat_decoder_select="mpegaudio"
1928 mp3float_decoder_select="mpegaudio"
1929 mp3on4_decoder_select="mpegaudio"
1930 mp3on4float_decoder_select="mpegaudio"
1931 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1932 mpc8_decoder_select="mpegaudiodsp"
1933 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1934 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1935 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1936 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1937 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1938 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1939 mpeg2_qsv_decoder_deps="libmfx"
1940 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
1941 mpeg2_qsv_encoder_deps="libmfx"
1942 mpeg2_qsv_encoder_select="qsvenc"
1943 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1944 mpeg4_encoder_select="h263_encoder"
1945 msa1_decoder_select="mss34dsp"
1946 msmpeg4v1_decoder_select="h263_decoder"
1947 msmpeg4v2_decoder_select="h263_decoder"
1948 msmpeg4v2_encoder_select="h263_encoder"
1949 msmpeg4v3_decoder_select="h263_decoder"
1950 msmpeg4v3_encoder_select="h263_encoder"
1951 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1952 mts2_decoder_select="mss34dsp"
1953 mxpeg_decoder_select="mjpeg_decoder"
1954 nellymoser_decoder_select="mdct sinewin"
1955 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1956 nuv_decoder_select="idctdsp lzo"
1957 on2avc_decoder_select="mdct"
1958 opus_decoder_deps="avresample"
1959 opus_decoder_select="imdct15"
1960 png_decoder_deps="zlib"
1961 png_encoder_deps="zlib"
1962 png_encoder_select="huffyuvencdsp"
1963 prores_decoder_select="idctdsp"
1964 prores_encoder_select="fdctdsp"
1965 qcelp_decoder_select="lsp"
1966 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1967 ra_144_encoder_select="audio_frame_queue lpc"
1968 ralf_decoder_select="golomb"
1969 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1970 rv10_encoder_select="h263_encoder"
1971 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1972 rv20_encoder_select="h263_encoder"
1973 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1974 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1975 shorten_decoder_select="golomb"
1976 sipr_decoder_select="lsp"
1977 sp5x_decoder_select="mjpeg_decoder"
1978 svq1_decoder_select="hpeldsp"
1979 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1980 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1981 svq3_decoder_suggest="zlib"
1982 tak_decoder_select="audiodsp"
1983 tdsc_decoder_deps="zlib"
1984 tdsc_decoder_select="mjpeg_decoder"
1985 theora_decoder_select="vp3_decoder"
1986 thp_decoder_select="mjpeg_decoder"
1987 tiff_decoder_suggest="zlib"
1988 tiff_encoder_suggest="zlib"
1989 truehd_decoder_select="mlp_decoder"
1990 truemotion2_decoder_select="bswapdsp"
1991 truespeech_decoder_select="bswapdsp"
1992 tscc_decoder_deps="zlib"
1993 txd_decoder_select="texturedsp"
1994 twinvq_decoder_select="mdct lsp sinewin"
1995 utvideo_decoder_select="bswapdsp"
1996 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1997 vble_decoder_select="huffyuvdsp"
1998 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1999 vc1image_decoder_select="vc1_decoder"
2000 vorbis_decoder_select="mdct"
2001 vorbis_encoder_select="mdct"
2002 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2003 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2004 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2005 vp6a_decoder_select="vp6_decoder"
2006 vp6f_decoder_select="vp6_decoder"
2007 vp7_decoder_select="h264pred videodsp vp8dsp"
2008 vp8_decoder_select="h264pred videodsp vp8dsp"
2009 vp9_decoder_select="videodsp"
2010 webp_decoder_select="vp8_decoder"
2011 wmapro_decoder_select="mdct sinewin wma_freqs"
2012 wmav1_decoder_select="mdct sinewin wma_freqs"
2013 wmav1_encoder_select="mdct sinewin wma_freqs"
2014 wmav2_decoder_select="mdct sinewin wma_freqs"
2015 wmav2_encoder_select="mdct sinewin wma_freqs"
2016 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2017 wmv1_decoder_select="h263_decoder"
2018 wmv1_encoder_select="h263_encoder"
2019 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2020 wmv2_encoder_select="h263_encoder wmv2dsp"
2021 wmv3_decoder_select="vc1_decoder"
2022 wmv3image_decoder_select="wmv3_decoder"
2023 zerocodec_decoder_deps="zlib"
2024 zlib_decoder_deps="zlib"
2025 zlib_encoder_deps="zlib"
2026 zmbv_decoder_deps="zlib"
2027 zmbv_encoder_deps="zlib"
2029 # hardware accelerators
2030 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2031 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2032 vaapi_deps="va_va_h"
2033 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2034 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2035 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2037 h263_vaapi_hwaccel_deps="vaapi"
2038 h263_vaapi_hwaccel_select="h263_decoder"
2039 h263_vdpau_hwaccel_deps="vdpau"
2040 h263_vdpau_hwaccel_select="h263_decoder"
2041 h264_d3d11va_hwaccel_deps="d3d11va"
2042 h264_d3d11va_hwaccel_select="h264_decoder"
2043 h264_dxva2_hwaccel_deps="dxva2"
2044 h264_dxva2_hwaccel_select="h264_decoder"
2045 h264_mmal_decoder_deps="mmal"
2046 h264_mmal_hwaccel_deps="mmal"
2047 h264_mmal_decoder_select="h264_decoder"
2048 h264_mmal_encoder_deps="mmal"
2049 h264_qsv_hwaccel_deps="libmfx"
2050 h264_vaapi_hwaccel_deps="vaapi"
2051 h264_vaapi_hwaccel_select="h264_decoder"
2052 h264_vda_hwaccel_deps="vda"
2053 h264_vda_hwaccel_select="h264_decoder"
2054 h264_vda_old_hwaccel_deps="vda"
2055 h264_vda_old_hwaccel_select="h264_decoder"
2056 h264_vdpau_hwaccel_deps="vdpau"
2057 h264_vdpau_hwaccel_select="h264_decoder"
2058 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2059 hevc_d3d11va_hwaccel_select="hevc_decoder"
2060 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2061 hevc_dxva2_hwaccel_select="hevc_decoder"
2062 hevc_qsv_hwaccel_deps="libmfx"
2063 mpeg1_vdpau_hwaccel_deps="vdpau"
2064 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2065 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2066 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2067 mpeg2_dxva2_hwaccel_deps="dxva2"
2068 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2069 mpeg2_qsv_hwaccel_deps="libmfx"
2070 mpeg2_vaapi_hwaccel_deps="vaapi"
2071 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2072 mpeg2_vdpau_hwaccel_deps="vdpau"
2073 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2074 mpeg4_vaapi_hwaccel_deps="vaapi"
2075 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2076 mpeg4_vdpau_hwaccel_deps="vdpau"
2077 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2078 vc1_d3d11va_hwaccel_deps="d3d11va"
2079 vc1_d3d11va_hwaccel_select="vc1_decoder"
2080 vc1_dxva2_hwaccel_deps="dxva2"
2081 vc1_dxva2_hwaccel_select="vc1_decoder"
2082 vc1_vaapi_hwaccel_deps="vaapi"
2083 vc1_vaapi_hwaccel_select="vc1_decoder"
2084 vc1_vdpau_hwaccel_deps="vdpau"
2085 vc1_vdpau_hwaccel_select="vc1_decoder"
2086 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2087 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2088 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2089 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2092 h264_parser_select="h264_decoder"
2093 hevc_parser_select="golomb"
2094 mpegvideo_parser_select="mpegvideo"
2095 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2096 vc1_parser_select="mpegvideo startcode vc1_decoder"
2099 mjpeg2jpeg_bsf_select="jpegtables"
2101 # external libraries
2102 libdcadec_decoder_deps="libdcadec"
2103 libfaac_encoder_deps="libfaac"
2104 libfaac_encoder_select="audio_frame_queue"
2105 libfdk_aac_decoder_deps="libfdk_aac"
2106 libfdk_aac_encoder_deps="libfdk_aac"
2107 libfdk_aac_encoder_select="audio_frame_queue"
2108 libgsm_decoder_deps="libgsm"
2109 libgsm_encoder_deps="libgsm"
2110 libgsm_ms_decoder_deps="libgsm"
2111 libgsm_ms_encoder_deps="libgsm"
2112 libilbc_decoder_deps="libilbc"
2113 libilbc_encoder_deps="libilbc"
2114 libmp3lame_encoder_deps="libmp3lame"
2115 libmp3lame_encoder_select="audio_frame_queue"
2116 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2117 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2118 libopencore_amrnb_encoder_select="audio_frame_queue"
2119 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2120 libopenh264_encoder_deps="libopenh264"
2121 libopenjpeg_decoder_deps="libopenjpeg"
2122 libopenjpeg_encoder_deps="libopenjpeg"
2123 libopus_decoder_deps="libopus"
2124 libopus_encoder_deps="libopus"
2125 libopus_encoder_select="audio_frame_queue"
2126 libschroedinger_decoder_deps="libschroedinger"
2127 libschroedinger_encoder_deps="libschroedinger"
2128 libspeex_decoder_deps="libspeex"
2129 libspeex_encoder_deps="libspeex"
2130 libspeex_encoder_select="audio_frame_queue"
2131 libtheora_encoder_deps="libtheora"
2132 libtwolame_encoder_deps="libtwolame"
2133 libvo_aacenc_encoder_deps="libvo_aacenc"
2134 libvo_aacenc_encoder_select="audio_frame_queue"
2135 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2136 libvorbis_encoder_deps="libvorbis"
2137 libvorbis_encoder_select="audio_frame_queue"
2138 libvpx_vp8_decoder_deps="libvpx"
2139 libvpx_vp8_encoder_deps="libvpx"
2140 libvpx_vp9_decoder_deps="libvpx"
2141 libvpx_vp9_encoder_deps="libvpx"
2142 libwavpack_encoder_deps="libwavpack"
2143 libwebp_encoder_deps="libwebp"
2144 libx262_encoder_deps="libx262"
2145 libx264_encoder_deps="libx264"
2146 libx265_encoder_deps="libx265"
2147 libxavs_encoder_deps="libxavs"
2148 libxvid_encoder_deps="libxvid"
2151 ac3_demuxer_select="ac3_parser"
2152 asf_demuxer_select="riffdec"
2153 asf_muxer_select="riffenc"
2154 asf_stream_muxer_select="asf_muxer"
2155 avi_demuxer_select="riffdec"
2156 avi_muxer_select="riffenc"
2157 avisynth_demuxer_deps="avisynth"
2158 avisynth_demuxer_select="riffdec"
2159 caf_demuxer_select="riffdec"
2160 dash_muxer_select="mp4_muxer"
2161 dirac_demuxer_select="dirac_parser"
2162 dv_demuxer_select="dvprofile"
2163 dv_muxer_select="dvprofile"
2164 dxa_demuxer_select="riffdec"
2165 eac3_demuxer_select="ac3_parser"
2166 f4v_muxer_select="mov_muxer"
2167 flac_demuxer_select="flac_parser"
2168 hds_muxer_select="flv_muxer"
2169 hls_muxer_select="mpegts_muxer"
2170 ipod_muxer_select="mov_muxer"
2171 ismv_muxer_select="mov_muxer"
2172 matroska_audio_muxer_select="matroska_muxer"
2173 matroska_demuxer_select="riffdec"
2174 matroska_demuxer_suggest="bzlib lzo zlib"
2175 matroska_muxer_select="riffenc"
2176 mmf_muxer_select="riffenc"
2177 mov_demuxer_select="riffdec"
2178 mov_demuxer_suggest="zlib"
2179 mov_muxer_select="riffenc rtpenc_chain"
2180 mp3_demuxer_select="mpegaudio_parser"
2181 mp4_muxer_select="mov_muxer"
2182 mpegts_muxer_select="adts_muxer latm_muxer"
2183 mpegtsraw_demuxer_select="mpegts_demuxer"
2184 mxf_d10_muxer_select="mxf_muxer"
2185 nut_muxer_select="riffenc"
2186 nuv_demuxer_select="riffdec"
2187 oga_muxer_select="ogg_muxer"
2188 ogg_demuxer_select="golomb"
2189 opus_muxer_select="ogg_muxer"
2190 psp_muxer_select="mov_muxer"
2191 rtp_demuxer_select="sdp_demuxer"
2192 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2193 rtsp_demuxer_select="http_protocol rtpdec"
2194 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2195 sap_demuxer_select="sdp_demuxer"
2196 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2197 sdp_demuxer_select="rtpdec"
2198 smoothstreaming_muxer_select="ismv_muxer"
2199 spdif_muxer_select="aac_parser"
2200 spx_muxer_select="ogg_muxer"
2201 tak_demuxer_select="tak_parser"
2202 tg2_muxer_select="mov_muxer"
2203 tgp_muxer_select="mov_muxer"
2204 w64_demuxer_select="wav_demuxer"
2205 wav_demuxer_select="riffdec"
2206 wav_muxer_select="riffenc"
2207 webm_muxer_select="riffenc"
2208 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2209 wtv_demuxer_select="riffdec"
2210 xmv_demuxer_select="riffdec"
2211 xwma_demuxer_select="riffdec"
2214 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2215 alsa_outdev_deps="alsa_asoundlib_h"
2216 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2217 dv1394_indev_deps="dv1394"
2218 dv1394_indev_select="dv_demuxer"
2219 fbdev_indev_deps="linux_fb_h"
2220 jack_indev_deps="jack_jack_h pthreads"
2221 libcdio_indev_deps="libcdio"
2222 libdc1394_indev_deps="libdc1394"
2223 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2224 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2225 pulse_indev_deps="libpulse"
2226 sndio_indev_deps="sndio_h"
2227 sndio_outdev_deps="sndio_h"
2228 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2229 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2230 vfwcap_indev_extralibs="-lavicap32"
2231 x11grab_indev_deps="x11grab"
2232 x11grab_xcb_indev_deps="libxcb"
2235 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2236 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2237 ffrtmpcrypt_protocol_select="tcp_protocol"
2238 ffrtmphttp_protocol_deps="!librtmp_protocol"
2239 ffrtmphttp_protocol_select="http_protocol"
2240 gopher_protocol_select="network"
2241 http_protocol_select="tcp_protocol"
2242 httpproxy_protocol_select="tcp_protocol"
2243 https_protocol_select="tls_protocol"
2244 icecast_protocol_select="http_protocol"
2245 librtmp_protocol_deps="librtmp"
2246 librtmpe_protocol_deps="librtmp"
2247 librtmps_protocol_deps="librtmp"
2248 librtmpt_protocol_deps="librtmp"
2249 librtmpte_protocol_deps="librtmp"
2250 mmsh_protocol_select="http_protocol"
2251 mmst_protocol_select="network"
2252 rtmp_protocol_deps="!librtmp_protocol"
2253 rtmp_protocol_select="tcp_protocol"
2254 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2255 rtmps_protocol_deps="!librtmp_protocol"
2256 rtmps_protocol_select="tls_protocol"
2257 rtmpt_protocol_select="ffrtmphttp_protocol"
2258 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2259 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2260 rtp_protocol_select="udp_protocol"
2261 sctp_protocol_deps="struct_sctp_event_subscribe"
2262 sctp_protocol_select="network"
2263 srtp_protocol_select="rtp_protocol"
2264 tcp_protocol_select="network"
2265 tls_gnutls_protocol_deps="gnutls"
2266 tls_gnutls_protocol_select="tcp_protocol"
2267 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2268 tls_openssl_protocol_select="tcp_protocol"
2269 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2270 udp_protocol_select="network"
2271 unix_protocol_deps="sys_un_h"
2272 unix_protocol_select="network"
2275 blackframe_filter_deps="gpl"
2276 boxblur_filter_deps="gpl"
2277 bs2b_filter_deps="libbs2b"
2278 cropdetect_filter_deps="gpl"
2279 delogo_filter_deps="gpl"
2280 drawtext_filter_deps="libfreetype"
2281 frei0r_filter_deps="frei0r dlopen"
2282 frei0r_filter_extralibs='$ldl'
2283 frei0r_src_filter_deps="frei0r dlopen"
2284 frei0r_src_filter_extralibs='$ldl'
2285 hqdn3d_filter_deps="gpl"
2286 interlace_filter_deps="gpl"
2287 ocv_filter_deps="libopencv"
2288 resample_filter_deps="avresample"
2289 scale_filter_deps="swscale"
2292 avcodec_example_deps="avcodec avutil"
2293 filter_audio_example_deps="avfilter avutil"
2294 metadata_example_deps="avformat avutil"
2295 output_example_deps="avcodec avformat avutil swscale"
2296 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2297 transcode_aac_example_deps="avcodec avformat avresample"
2299 # libraries, in linking order
2300 avcodec_deps="avutil"
2301 avdevice_deps="avformat avcodec avutil"
2302 avfilter_deps="avutil"
2303 avformat_deps="avcodec avutil"
2304 avresample_deps="avutil"
2305 swscale_deps="avutil"
2308 avconv_deps="avcodec avfilter avformat avresample swscale"
2309 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2310 fps_filter null_filter resample_filter scale_filter
2311 setpts_filter trim_filter"
2312 avplay_deps="avcodec avformat avresample swscale sdl"
2313 avplay_libs='$sdl_libs'
2314 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2315 avprobe_deps="avcodec avformat"
2319 texi2html_deps="doc"
2321 # default parameters
2323 logfile="config.log"
2325 # installation paths
2326 prefix_default="/usr/local"
2327 bindir_default='${prefix}/bin'
2328 datadir_default='${prefix}/share/avconv'
2329 docdir_default='${prefix}/share/doc/libav'
2330 incdir_default='${prefix}/include'
2331 libdir_default='${prefix}/lib'
2332 mandir_default='${prefix}/share/man'
2333 shlibdir_default="$libdir_default"
2338 host_cc_default="gcc"
2343 pkg_config_default=pkg-config
2349 arch_default=$(uname -m)
2354 target_os_default=$(tolower $(uname -s))
2355 host_os=$target_os_default
2357 # configurable options
2358 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2363 enable faan faandct faanidct
2364 enable optimizations
2365 enable safe_bitstream_reader
2367 enable swscale_alpha
2368 enable valgrind_backtrace
2370 # By default, enable only those hwaccels that have no external dependencies.
2371 enable d3d11va dxva2 vda vdpau
2374 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2377 FULLNAME='$(NAME)$(BUILDSUF)'
2378 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2381 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2382 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2383 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2384 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2385 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2386 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2406 host_cflags_filter=echo
2407 host_ldflags_filter=echo
2409 target_path='$(CURDIR)'
2411 # since the object filename is not given with the -MM flag, the compiler
2412 # is only able to print the basename, and we must add the path ourselves
2413 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2417 if test -f configure; then
2420 source_path=$(cd $(dirname "$0"); pwd)
2421 echo "$source_path" | grep -q '[[:blank:]]' &&
2422 die "Out of tree builds are impossible with whitespace in source path."
2423 test -e "$source_path/config.h" &&
2424 die "Out of tree builds are impossible with config.h in source dir."
2431 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2437 file=$source_path/$3
2438 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2441 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2442 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2443 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2444 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2445 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2446 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2447 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2448 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2449 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2450 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2451 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2467 for n in $COMPONENT_LIST; do
2468 v=$(toupper ${n%s})_LIST
2470 eval ${n}_if_any="\$$v"
2473 enable $ARCH_EXT_LIST
2476 echo "Unknown option \"$1\"."
2477 echo "See $0 --help for available options."
2482 cat | tr ' ' '\n' | sort | pr -r -3 -t
2488 echo $* | sed s/$suffix//g | print_3_columns
2500 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2501 echo "prob ${prob:-0.5}"
2509 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2510 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2519 --extra-ldexeflags=*)
2520 add_ldexeflags $optval
2523 add_extralibs $optval
2526 disable $INDEV_LIST $OUTDEV_LIST
2529 debuglevel="$optval"
2532 disable $PROGRAM_LIST
2534 --disable-everything)
2535 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2538 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2539 disable $LIBRARY_LIST $PROGRAM_LIST doc
2541 --enable-random|--disable-random)
2542 action=${opt%%-random}
2543 do_random ${action#--} $COMPONENT_LIST
2545 --enable-random=*|--disable-random=*)
2546 action=${opt%%-random=*}
2547 do_random ${action#--} $optval
2549 --enable-*=*|--disable-*=*)
2550 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2551 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2552 eval list=\$$(toupper $thing)_LIST
2553 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2554 $action $(filter "$name" $list)
2556 --enable-avserver|--disable-avserver*)
2557 warn "avserver has been removed, the ${opt} option is only"\
2558 "provided for compatibility and will be removed in the future"
2560 --enable-?*|--disable-?*)
2561 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2562 if is_in $option $COMPONENT_LIST; then
2563 test $action = disable && action=unset
2564 eval $action \$$(toupper ${option%s})_LIST
2565 elif is_in $option $CMDLINE_SELECT; then
2572 NAME="${opt#--list-}"
2573 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2575 eval show_list $NAME \$$(toupper $NAME)_LIST
2577 --help|-h) show_help
2580 optname="${opt%%=*}"
2581 optname="${optname#--}"
2582 optname=$(echo "$optname" | sed 's/-/_/g')
2583 if is_in $optname $CMDLINE_SET; then
2584 eval $optname='$optval'
2585 elif is_in $optname $CMDLINE_APPEND; then
2586 append $optname "$optval"
2598 disabled logging && logfile=/dev/null
2600 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2603 case "$toolchain" in
2606 add_cflags -fsanitize=address
2607 add_ldflags -fsanitize=address
2611 add_cflags -fsanitize=thread -pie
2612 add_ldflags -fsanitize=thread -pie
2616 add_cflags -fsanitize=undefined -O1
2617 add_ldflags -fsanitize=undefined
2621 add_cflags -fsanitize=address
2622 add_ldflags -fsanitize=address
2626 add_cflags -fsanitize=thread -pie -fPIC
2627 add_ldflags -fsanitize=thread -pie -fPIC
2631 add_cflags -fsanitize=undefined
2632 add_ldflags -fsanitize=undefined
2635 target_exec_default="valgrind"
2636 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2639 target_exec_default="valgrind"
2640 target_exec_args="--track-origins=yes --leak-check=full"
2643 # Check whether the current MSVC version needs the C99 converter.
2644 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2645 # support enough of C99 to build libav. Default to the new
2646 # behaviour if the regexp was unable to match anything, since this
2647 # successfully parses the version number of existing supported
2648 # versions that require the converter (MSVC 2010 and 2012).
2649 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2650 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2653 cc_default="c99wrap cl"
2655 ld_default="$source_path/compat/windows/mslink"
2656 nm_default="dumpbin -symbols"
2663 target_os_default="win32"
2664 # Use a relative path for TMPDIR. This makes sure all the
2665 # ffconf temp files are written with a relative path, avoiding
2666 # issues with msys/win32 path conversion for MSVC parameters
2667 # such as -Fo<file> or -out:<file>.
2673 nm_default="dumpbin -symbols"
2675 target_os_default="win32"
2679 add_cflags -fprofile-arcs -ftest-coverage
2680 add_ldflags -fprofile-arcs -ftest-coverage
2683 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2684 add_cflags -fno-strict-overflow -fstack-protector-all
2685 add_ldflags -Wl,-z,relro -Wl,-z,now
2688 die "Unknown toolchain $toolchain"
2692 test -n "$cross_prefix" && enable cross_compile
2694 if enabled cross_compile; then
2695 test -n "$arch" && test -n "$target_os" ||
2696 die "Must specify target arch and OS when cross-compiling"
2699 ar_default="${cross_prefix}${ar_default}"
2700 cc_default="${cross_prefix}${cc_default}"
2701 nm_default="${cross_prefix}${nm_default}"
2702 pkg_config_default="${cross_prefix}${pkg_config_default}"
2703 ranlib="${cross_prefix}${ranlib}"
2704 strip="${cross_prefix}${strip}"
2706 sysinclude_default="${sysroot}/usr/include"
2708 set_default arch cc pkg_config sysinclude target_exec target_os
2709 enabled cross_compile || host_cc_default=$cc
2712 if ! $pkg_config --version >/dev/null 2>&1; then
2713 warn "$pkg_config not found, library detection may fail."
2719 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2723 EXESUF=$(exesuf $target_os)
2724 HOSTEXESUF=$(exesuf $host_os)
2726 # set temporary file name
2727 : ${TMPDIR:=$TEMPDIR}
2731 if ! check_cmd mktemp -u XXXXXX; then
2732 # simple replacement for missing mktemp
2733 # NOT SAFE FOR GENERAL USE
2735 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2740 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2741 (set -C; exec > $tmp) 2>/dev/null ||
2742 die "Unable to create temporary file in $TMPDIR."
2743 append TMPFILES $tmp
2747 trap 'rm -f -- $TMPFILES' EXIT
2751 tmpfile TMPE $EXESUF
2762 # make sure we can execute files in $TMPDIR
2763 cat > $TMPSH 2>> $logfile <<EOF
2766 chmod +x $TMPSH >> $logfile 2>&1
2767 if ! $TMPSH >> $logfile 2>&1; then
2769 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2770 variable to another directory and make sure that it is not mounted noexec.
2772 die "Sanity test failed."
2778 # Filter out MSVC cl.exe options from cflags that shouldn't
2779 # be passed to gas-preprocessor
2789 -std=c99) echo -c99 ;;
2790 -mcpu=*) echo -arch ${flag#*=} ;;
2791 -mieee) echo -ieee ;;
2792 -O*|-fast) echo $flag ;;
2793 -fno-math-errno) echo -assume nomath_errno ;;
2795 -Wall) echo -msg_enable level2 ;;
2796 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2797 -Wl,*) echo $flag ;;
2807 -Wno-switch) echo -Wno-switch-enum ;;
2808 -Wno-format-zero-length) ;;
2809 -Wdisabled-optimization) ;;
2810 -Wno-pointer-sign) echo -Wno-other ;;
2816 msvc_common_flags(){
2819 # In addition to specifying certain flags under the compiler
2820 # specific filters, they must be specified here as well or else the
2821 # generic catch all at the bottom will print the original flag.
2825 -fomit-frame-pointer) ;;
2829 -fno-signed-zeros) ;;
2833 -lz) echo zlib.lib ;;
2834 -lavifil32) echo vfw32.lib ;;
2835 -lavicap32) echo vfw32.lib user32.lib ;;
2836 -l*) echo ${flag#-l}.lib ;;
2837 -L*) echo -libpath:${flag#-L} ;;
2844 msvc_common_flags "$@"
2847 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2848 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2849 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2850 -wd4273 -wd4554 -wd4701 ;;
2856 msvc_common_flags "$@"
2859 # Despite what Intel's documentation says -Wall, which is supported
2860 # on Windows, does enable remarks so disable them here.
2861 -Wall) echo $flag -Qdiag-disable:remark ;;
2862 -std=c99) echo -Qstd=c99 ;;
2870 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2871 -fomit-frame-pointer) echo -Mnoframe ;;
2882 case "${flag#*=}" in
2883 native) echo -xtarget=native ;;
2884 v9|niagara) echo -xarch=sparc ;;
2885 ultrasparc) echo -xarch=sparcvis ;;
2886 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2887 i586|pentium) echo -xchip=pentium ;;
2888 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2889 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2890 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2891 pentium4*) echo -xtarget=pentium4 ;;
2892 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2893 *-sse3) echo -xarch=sse3 ;;
2894 core2) echo -xarch=ssse3 -xchip=core2 ;;
2895 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2896 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2897 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2898 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2899 k8|opteron|athlon64|athlon-fx)
2900 echo -xarch=sse2a ;;
2901 athlon*) echo -xarch=pentium_proa ;;
2904 -std=c99) echo -xc99 ;;
2905 -fomit-frame-pointer) echo -xregs=frameptr ;;
2906 -fPIC) echo -KPIC -xcode=pic32 ;;
2907 -W*,*) echo $flag ;;
2908 -f*-*|-W*|-mimpure-text) ;;
2919 case "${flag#*=}" in
2920 armv7-a|cortex-a*) echo -mv=7a8 ;;
2921 armv7-r|cortex-r*) echo -mv=7r4 ;;
2922 armv7-m|cortex-m*) echo -mv=7m3 ;;
2923 armv6*|arm11*) echo -mv=6 ;;
2924 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2926 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2929 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2930 -mfpu=vfp) echo --float_support=vfpv2 ;;
2931 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2932 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2933 -msoft-float) echo --float_support=vfplib ;;
2934 -O[0-3]|-mf=*) echo $flag ;;
2936 -pds=*) echo $flag ;;
2937 -D*|-I*) echo $flag ;;
2938 --gcc|--abi=*) echo $flag ;;
2948 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2949 unset _ld_o _ldflags _ld_lib _ld_path
2950 unset _depflags _DEPCMD _DEPFLAGS
2953 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2955 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
2956 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
2957 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2960 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2962 gcc_version=$($_cc --version | head -n1)
2963 gcc_basever=$($_cc -dumpversion)
2964 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2965 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2966 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2967 if ! $_cc -dumpversion | grep -q '^2\.'; then
2968 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2972 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2974 _ident=$($_cc --version | head -n1)
2979 elif $_cc -v 2>&1 | grep -q xlc; then
2981 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2983 _cflags_size='-O5 -qcompact'
2984 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2986 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2988 _cflags_speed='-fast'
2990 _flags_filter=ccc_flags
2991 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2992 test -d "$sysroot" || die "No valid sysroot specified."
2994 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2995 armcc_conf="$PWD/armcc.conf"
2996 $_cc --arm_linux_configure \
2997 --arm_linux_config_file="$armcc_conf" \
2998 --configure_sysroot="$sysroot" \
2999 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3000 die "Error creating armcc configuration file."
3001 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3002 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3003 as_default="${cross_prefix}gcc"
3007 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3009 _ident=$($_cc -version | head -n1 | tr -s ' ')
3010 _flags='--gcc --abi=eabi -me'
3013 _depflags='-ppa -ppd=$(@:.o=.d)'
3014 _cflags_speed='-O3 -mf=5'
3015 _cflags_size='-O3 -mf=2'
3016 _flags_filter=tms470_flags
3017 elif $_cc -v 2>&1 | grep -q clang; then
3019 _ident=$($_cc --version 2>/dev/null | head -n1)
3020 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3023 elif $_cc -V 2>&1 | grep -q Sun; then
3025 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3026 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3027 _DEPFLAGS='-xM1 -xc99'
3030 _cflags_size='-O5 -xspace'
3031 _flags_filter=suncc_flags
3032 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3034 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3035 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3038 _flags_filter='filter_out -Wdisabled-optimization'
3039 elif $_cc -v 2>&1 | grep -q Open64; then
3041 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3042 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3045 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3046 elif $_cc -V 2>&1 | grep -q Portland; then
3048 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3049 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3050 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3051 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3053 _flags_filter=pgi_flags
3054 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3056 _ident=$($_cc | head -n1)
3057 # 4509: "This form of conditional instruction is deprecated"
3058 _flags="-nologo -ignore 4509"
3059 _flags_filter=armasm_flags
3060 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3062 _ident=$($_cc 2>&1 | head -n1)
3063 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3064 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3067 if $_cc -nologo- 2>&1 | grep -q Linker; then
3074 _flags_filter=msvc_flags
3076 _ld_path='-libpath:'
3078 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS'
3079 elif $_cc 2>&1 | grep -q Intel; then
3081 _ident=$($_cc 2>&1 | head -n1)
3082 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3083 # Not only is O3 broken on 13.x+ but it is slower on all previous
3084 # versions (tested) as well.
3086 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3087 if $_cc 2>&1 | grep -q Linker; then
3094 _flags_filter=icl_flags
3096 _ld_path='-libpath:'
3097 # -Qdiag-error to make icl error when seeing certain unknown arguments
3098 _flags='-nologo -Qdiag-error:4044,10157'
3099 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3100 # with MSVC which enables it by default.
3101 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3102 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3104 _ident=$($_cc --version | head -n1)
3108 _flags_filter=cparser_flags
3111 eval ${pfx}_type=\$_type
3112 eval ${pfx}_ident=\$_ident
3116 eval ${1}_C=\${_cc_c-\${${1}_C}}
3117 eval ${1}_E=\${_cc_e-\${${1}_E}}
3118 eval ${1}_O=\${_cc_o-\${${1}_O}}
3120 if [ -n "$_depflags" ]; then
3121 eval ${1}_DEPFLAGS=\$_depflags
3123 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3124 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3125 eval DEP${1}FLAGS=\$_flags
3130 cflags_filter=$_flags_filter
3131 cflags_speed=$_cflags_speed
3132 cflags_size=$_cflags_size
3133 cflags_noopt=$_cflags_noopt
3134 add_cflags $_flags $_cflags
3135 cc_ldflags=$_ldflags
3138 probe_cc hostcc "$host_cc"
3139 host_cflags_filter=$_flags_filter
3140 add_host_cflags $_flags $_cflags
3143 test -n "$cc_type" && enable $cc_type ||
3144 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3146 : ${as_default:=$cc}
3147 : ${dep_cc_default:=$cc}
3148 : ${ld_default:=$cc}
3149 : ${host_ld_default:=$host_cc}
3150 set_default ar as dep_cc ld host_ld
3153 asflags_filter=$_flags_filter
3154 add_asflags $_flags $_cflags
3158 ldflags_filter=$_flags_filter
3159 add_ldflags $_flags $_ldflags
3160 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3162 LD_LIB=${_ld_lib-$LD_LIB}
3163 LD_PATH=${_ld_path-$LD_PATH}
3165 probe_cc hostld "$host_ld"
3166 host_ldflags_filter=$_flags_filter
3167 add_host_ldflags $_flags $_ldflags
3168 HOSTLD_O=${_ld_o-$HOSTLD_O}
3170 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3171 probe_cc depcc "$dep_cc"
3172 CCDEP=${_DEPCMD:-$DEPCMD}
3173 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3177 if $ar 2>&1 | grep -q Microsoft; then
3180 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3183 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3184 arflags='-Xany -r -c'
3191 add_cflags $extra_cflags
3192 add_asflags $extra_cflags
3194 if test -n "$sysroot"; then
3197 add_cppflags --sysroot="$sysroot"
3198 add_ldflags --sysroot="$sysroot"
3201 add_cppflags -I"$sysinclude"
3202 add_ldflags --sysroot="$sysroot"
3207 if test "$cpu" = host; then
3208 enabled cross_compile &&
3209 die "--cpu=host makes no sense when cross-compiling."
3214 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3216 s/.*$1=\\([^ ]*\\).*/\\1/
3221 cpu=$(check_native -march || check_native -mcpu)
3225 test "${cpu:-host}" = host &&
3226 die "--cpu=host not supported with compiler $cc"
3229 # Deal with common $arch aliases
3243 "Power Macintosh"|ppc*|powerpc*)
3258 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3263 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3266 # Add processor-specific flags
3267 if enabled aarch64; then
3271 cpuflags="-march=$cpu"
3274 cpuflags="-mcpu=$cpu"
3278 elif enabled alpha; then
3280 cpuflags="-mcpu=$cpu"
3282 elif enabled arm; then
3285 check_cpp_condition stddef.h \
3286 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3291 if check_arm_arch 4; then echo armv4;
3292 elif check_arm_arch 4T; then echo armv4t;
3293 elif check_arm_arch 5; then echo armv5;
3294 elif check_arm_arch 5E; then echo armv5e;
3295 elif check_arm_arch 5T; then echo armv5t;
3296 elif check_arm_arch 5TE; then echo armv5te;
3297 elif check_arm_arch 5TEJ; then echo armv5te;
3298 elif check_arm_arch 6; then echo armv6;
3299 elif check_arm_arch 6J; then echo armv6j;
3300 elif check_arm_arch 6K; then echo armv6k;
3301 elif check_arm_arch 6Z; then echo armv6z;
3302 elif check_arm_arch 6ZK; then echo armv6zk;
3303 elif check_arm_arch 6T2; then echo armv6t2;
3304 elif check_arm_arch 7; then echo armv7;
3305 elif check_arm_arch 7A 7_A; then echo armv7-a;
3306 elif check_arm_arch 7S; then echo armv7-a;
3307 elif check_arm_arch 7R 7_R; then echo armv7-r;
3308 elif check_arm_arch 7M 7_M; then echo armv7-m;
3309 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3310 elif check_arm_arch 8A 8_A; then echo armv8-a;
3314 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3318 cpuflags="-march=$cpu"
3319 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3322 cpuflags="-mcpu=$cpu"
3324 cortex-a*) subarch=armv7a ;;
3325 cortex-r*) subarch=armv7r ;;
3326 cortex-m*) enable thumb; subarch=armv7m ;;
3327 arm11*) subarch=armv6 ;;
3328 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3329 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3330 *) subarch=$(probe_arm_arch) ;;
3336 armv5t*) enable fast_clz ;;
3337 armv[6-8]*) enable fast_clz fast_unaligned ;;
3340 elif enabled avr32; then
3345 cpuflags="-mpart=$cpu"
3349 cpuflags="-march=$cpu"
3353 cpuflags="-mcpu=$cpu"
3357 cpuflags="-march=$cpu"
3361 elif enabled bfin; then
3363 cpuflags="-mcpu=$cpu"
3365 elif enabled mips; then
3367 cpuflags="-march=$cpu"
3369 elif enabled ppc; then
3373 case $(tolower $cpu) in
3374 601|ppc601|powerpc601)
3375 cpuflags="-mcpu=601"
3378 603*|ppc603*|powerpc603*)
3379 cpuflags="-mcpu=603"
3382 604*|ppc604*|powerpc604*)
3383 cpuflags="-mcpu=604"
3386 g3|75*|ppc75*|powerpc75*)
3387 cpuflags="-mcpu=750"
3390 g4|745*|ppc745*|powerpc745*)
3391 cpuflags="-mcpu=7450"
3394 74*|ppc74*|powerpc74*)
3395 cpuflags="-mcpu=7400"
3398 g5|970|ppc970|powerpc970)
3399 cpuflags="-mcpu=970"
3403 cpuflags="-mcpu=$cpu"
3407 cpuflags="-mcpu=$cpu"
3411 cpuflags="-mcpu=cell"
3416 cpuflags="-mcpu=e500mc"
3420 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3425 cpuflags="-mcpu=8540 -mhard-float"
3431 elif enabled sparc; then
3434 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3435 cpuflags="-mcpu=$cpu"
3437 ultrasparc*|niagara[234])
3438 cpuflags="-mcpu=$cpu"
3442 elif enabled x86; then
3446 cpuflags="-march=$cpu"
3450 # targets that do NOT support nopl and conditional mov (cmov)
3451 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3452 cpuflags="-march=$cpu"
3455 # targets that do support nopl and conditional mov (cmov)
3456 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3457 cpuflags="-march=$cpu"
3461 # targets that do support conditional mov but on which it's slow
3462 pentium4|pentium4m|prescott|nocona)
3463 cpuflags="-march=$cpu"
3471 if [ "$cpu" != generic ]; then
3472 add_cflags $cpuflags
3473 add_asflags $cpuflags
3474 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3477 # compiler sanity check
3479 int main(void){ return 0; }
3481 if test "$?" != 0; then
3482 echo "$cc is unable to create an executable file."
3483 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3484 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3485 echo "Only do this if you know what cross compiling means."
3487 die "C compiler test failed."
3490 add_cppflags -D_ISOC99_SOURCE
3491 check_cflags -std=c99
3492 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3495 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3499 add_host_cppflags -D_ISOC99_SOURCE
3500 check_host_cflags -std=c99
3501 check_host_cflags -Wall
3502 check_host_cflags -O3
3508 check_code cc "" "int test[2*($expr) - 1]" &&
3509 subarch=$arch64 || subarch=$arch32
3517 check_64bit mips mips64 '_MIPS_SIM > 1'
3521 check_64bit parisc parisc64 'sizeof(void *) > 4'
3525 check_64bit ppc ppc64 'sizeof(void *) > 4'
3529 check_64bit s390 s390x 'sizeof(void *) > 4'
3533 check_64bit sparc sparc64 'sizeof(void *) > 4'
3537 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3538 if test "$subarch" = "x86_64"; then
3545 enabled spic && enable_weak pic
3551 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3552 enabled shared && add_ldflags -Wl,-brtl
3556 enable section_data_rel_ro
3557 SLIB_INSTALL_NAME='$(SLIBNAME)'
3559 # soname not set on purpose
3563 prefix_default="/boot/common"
3564 network_extralibs="-lnetwork"
3568 SHFLAGS='-shared -Wl,-h,$$(@F)'
3569 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3570 network_extralibs="-lsocket -lnsl"
3571 # When using suncc to build, the Solaris linker will mark
3572 # an executable with each instruction set encountered by
3573 # the Solaris assembler. As our libraries contain their own
3574 # guards for processor-specific code, instead suppress
3575 # generation of the HWCAPS ELF section on Solaris x86 only.
3576 enabled_all suncc x86 &&
3577 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3578 add_ldflags -Wl,-M,mapfile
3579 nm_default='nm -P -g'
3583 oss_indev_extralibs="-lossaudio"
3584 oss_outdev_extralibs="-lossaudio"
3589 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3591 oss_indev_extralibs="-lossaudio"
3592 oss_outdev_extralibs="-lossaudio"
3600 add_extralibs -lpoll -lgnugetopt
3603 enabled ppc && add_asflags -force_cpusubtype_ALL
3604 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3605 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3606 add_ldflags -Wl,-dynamic,-search_paths_first
3608 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3609 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3611 enabled x86_64 && objformat="macho64"
3612 enabled_any pic shared ||
3613 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3616 if test $target_os = "mingw32ce"; then
3622 if enabled x86_64; then
3623 LIBTARGET="i386:x86-64"
3624 elif enabled arm; then
3627 check_ldflags -Wl,--nxcompat
3628 check_ldflags -Wl,--dynamicbase
3629 shlibdir_default="$bindir_default"
3632 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3633 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3634 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3635 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3637 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3638 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3639 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3641 dlltool="${cross_prefix}dlltool"
3647 if enabled shared; then
3648 # Link to the import library instead of the normal static library
3651 # Cannot build both shared and static libs with MSVC or icl.
3654 shlibdir_default="$bindir_default"
3657 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3658 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3659 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3660 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3662 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3663 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3664 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3671 shlibdir_default="$bindir_default"
3674 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3675 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3676 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3678 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3679 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3683 *-dos|freedos|opendos)
3684 network_extralibs="-lsocket"
3687 add_cppflags -U__STRICT_ANSI__
3691 enable section_data_rel_ro
3695 ranlib="echo ignoring ranlib"
3700 add_cppflags -D_GNU_SOURCE
3701 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3702 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3706 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3707 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3708 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3709 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3710 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3711 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3712 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3713 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3714 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3715 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3719 add_cppflags -D_BSD_SOURCE
3724 add_cppflags -D_QNX_SOURCE
3725 network_extralibs="-lsocket"
3730 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3731 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3732 add_ldflags -Wl,--target1-abs,--no-undefined \
3733 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3734 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3735 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3736 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3737 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3740 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3745 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3746 -D_REENTRANT_SOURCE \
3747 -D_RESEARCH_SOURCE \
3750 add_compat strtod.o strtod=avpriv_strtod
3751 network_extralibs='-lbsd'
3752 exeobjs=compat/plan9/main.o
3758 die "Unknown OS '$target_os'."
3762 # determine libc flavour
3767 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3768 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3769 eval ${pfx}libc_type=uclibc
3770 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3771 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3772 eval ${pfx}libc_type=glibc
3773 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3774 # MinGW headers can be installed on Cygwin, so check for newlib first.
3775 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3776 eval ${pfx}libc_type=newlib
3777 add_${pfx}cppflags -U__STRICT_ANSI__
3778 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3779 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3780 eval ${pfx}libc_type=mingw64
3781 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3782 eval test \$${pfx_no_}cc_type = "gcc" &&
3783 add_${pfx}cppflags -D__printf__=__gnu_printf__
3784 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3785 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3786 eval ${pfx}libc_type=mingw32
3787 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3788 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3789 die "ERROR: MinGW32 runtime version must be >= 3.15."
3790 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3791 eval test \$${pfx_no_}cc_type = "gcc" &&
3792 add_${pfx}cppflags -D__printf__=__gnu_printf__
3793 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3794 eval ${pfx}libc_type=msvcrt
3795 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3796 if [ "$pfx" = host_ ]; then
3797 add_host_cppflags -Dsnprintf=_snprintf
3799 add_compat strtod.o strtod=avpriv_strtod
3800 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3801 _snprintf=avpriv_snprintf \
3802 vsnprintf=avpriv_vsnprintf
3805 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3806 # 0x601 by default unless something else is set by the user.
3807 # This can easily lead to us detecting functions only present
3808 # in such new versions and producing binaries requiring windows 7.0.
3809 # Therefore explicitly set the default to XP unless the user has
3810 # set something else on the command line.
3811 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3812 # family. For these cases, configure is free to use any functions
3813 # found in the SDK headers by default. (Alternatively, we could force
3814 # _WIN32_WINNT to 0x0602 in that case.)
3815 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3816 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3817 #ifdef WINAPI_FAMILY
3818 #include <winapifamily.h>
3819 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3824 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3825 eval ${pfx}libc_type=klibc
3826 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3827 eval ${pfx}libc_type=bionic
3828 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3829 eval ${pfx}libc_type=solaris
3830 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3832 eval ${pfx}libc_type=default
3833 add_${pfx}cppflags -D_DEFAULT_SOURCE
3838 test -n "$libc_type" && enable libc_$libc_type
3840 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3844 add_compat strtod.o strtod=avpriv_strtod
3848 # hacks for compiler/libc/os combinations
3850 if enabled_all tms470 libc_glibc; then
3851 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3852 add_cppflags -D__USER_LABEL_PREFIX__=
3853 add_cppflags -D__builtin_memset=memset
3854 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3855 add_cflags -pds=48 # incompatible redefinition of macro
3858 if enabled_all ccc libc_glibc; then
3859 add_ldflags -Wl,-z,now # calls to libots crash without this
3862 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3863 add_cppflags '-I\$(SRC_PATH)/compat/float'
3866 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3869 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3871 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3873 set_default $PATHS_LIST
3876 # we need to build at least one lib type
3877 if ! enabled_any static shared; then
3879 At least one library type must be built.
3880 Specify --enable-static to build the static libraries or --enable-shared to
3881 build the shared libraries as well. To only build the shared libraries specify
3882 --disable-static in addition to --enable-shared.
3887 die_license_disabled() {
3888 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3891 die_license_disabled gpl libcdio
3892 die_license_disabled gpl libx264
3893 die_license_disabled gpl libx265
3894 die_license_disabled gpl libxavs
3895 die_license_disabled gpl libxvid
3896 die_license_disabled gpl x11grab
3898 die_license_disabled nonfree libfaac
3899 die_license_disabled nonfree libfdk_aac
3900 die_license_disabled nonfree nvenc
3901 die_license_disabled nonfree openssl
3903 die_license_disabled version3 libopencore_amrnb
3904 die_license_disabled version3 libopencore_amrwb
3905 die_license_disabled version3 libvo_aacenc
3906 die_license_disabled version3 libvo_amrwbenc
3908 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3910 disabled optimizations || check_cflags -fomit-frame-pointer
3913 disabled pic && return
3916 case "$target_os" in
3926 enabled pic && enable_weak_pic
3928 check_cc <<EOF || die "Symbol mangling check failed."
3931 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3932 extern_prefix=${sym%%ff_extern*}
3934 check_cc <<EOF && enable_weak inline_asm
3935 void foo(void) { __asm__ volatile ("" ::); }
3939 for restrict_keyword in restrict __restrict__ __restrict; do
3940 check_cc <<EOF && _restrict=$restrict_keyword && break
3941 void foo(char * $restrict_keyword p);
3945 check_cc <<EOF && enable pragma_deprecated
3946 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3949 check_cc <<EOF && enable attribute_packed
3950 struct { int x; } __attribute__((packed)) x;
3953 check_cc <<EOF && enable attribute_may_alias
3954 union { int x; } __attribute__((may_alias)) x;
3957 check_cc <<EOF || die "endian test failed"
3958 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3960 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3963 log "check_gas using '$as' as AS"
3964 # :vararg is used on aarch64, arm and ppc altivec
3965 check_as <<EOF || return 1
3966 .macro m n, y:vararg=0
3971 # .altmacro is only used in arm asm
3972 ! enabled arm || check_as <<EOF || return 1
3979 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3981 enabled_any arm aarch64 && nogas=die
3982 enabled_all ppc altivec && nogas=warn
3986 arm*) gaspp_as_type=armasm; as_noop=-h ;;
3987 gcc) gaspp_as_type=gas ;;
3988 *) gaspp_as_type=$as_type ;;
3991 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3993 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3994 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3996 if ! check_gas ; then
3999 $nogas "GNU assembler not found, install/update gas-preprocessor"
4002 check_as <<EOF && enable as_func
4008 check_inline_asm inline_asm_labels '"1:\n"'
4010 if enabled aarch64; then
4011 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4012 # internal assembler in clang 3.3 does not support this instruction
4013 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4014 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4016 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4018 elif enabled alpha; then
4022 elif enabled arm; then
4024 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4025 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4026 enabled thumb && check_cflags -mthumb || check_cflags -marm
4028 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4030 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4032 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4033 case "${cross_prefix:-$cc}" in
4034 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4035 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4036 __asm__ (".eabi_attribute 28, 1");
4037 int main(void) { return 0; }
4040 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4043 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4044 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4045 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4046 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4047 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4048 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4050 [ $target_os = linux ] || [ $target_os = android ] ||
4051 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4054 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4056 check_as <<EOF && enable as_dn_directive
4061 # llvm's integrated assembler supports .object_arch from llvm 3.5
4062 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4066 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4068 elif enabled mips; then
4070 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4072 # make sure that only an instruction set is enabled
4073 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4075 if enabled mips64; then
4076 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4077 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4078 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4080 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4081 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4082 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4085 elif enabled parisc; then
4087 if enabled gcc; then
4088 case $($cc -dumpversion) in
4089 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4093 elif enabled ppc; then
4095 enable local_aligned_8 local_aligned_16
4097 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4098 check_inline_asm ibm_asm '"add 0, 0, 0"'
4099 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4100 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4102 # AltiVec flags: The FSF version of GCC differs from the Apple version
4103 if enabled altivec; then
4104 check_cflags -maltivec -mabi=altivec &&
4105 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4106 check_cflags -faltivec
4108 # check if our compiler supports Motorola AltiVec C API
4109 check_cc <<EOF || disable altivec
4112 vector signed int v1 = (vector signed int) { 0 };
4113 vector signed int v2 = (vector signed int) { 1 };
4114 v1 = vec_add(v1, v2);
4119 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4122 if enabled vsx; then
4123 check_cflags -mvsx &&
4124 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4127 if enabled power8; then
4128 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4131 elif enabled x86; then
4133 check_builtin rdtsc intrin.h "__rdtsc()"
4134 check_builtin mm_empty mmintrin.h "_mm_empty()"
4136 enable local_aligned_8 local_aligned_16
4138 # check whether EBP is available on x86
4139 # As 'i' is stored on the stack, this program will crash
4140 # if the base pointer is used to access it because the
4141 # base pointer is cleared in the inline assembly code.
4142 check_exec_crash <<EOF && enable ebp_available
4144 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4148 # check whether EBX is available on x86
4149 check_inline_asm ebx_available '""::"b"(0)' &&
4150 check_inline_asm ebx_available '"":::"%ebx"'
4152 # check whether xmm clobbers are supported
4153 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4155 # check whether binutils is new enough to compile SSSE3/MMXEXT
4156 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4157 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4159 if ! disabled_any asm mmx yasm; then
4160 if check_cmd $yasmexe --version; then
4161 enabled x86_64 && yasm_extra="-m amd64"
4162 yasm_debug="-g dwarf2"
4163 elif check_cmd nasm -v; then
4165 yasm_debug="-g -F dwarf"
4166 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4169 YASMFLAGS="-f $objformat $yasm_extra"
4170 enabled pic && append YASMFLAGS "-DPIC"
4171 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4172 case "$objformat" in
4173 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4176 check_yasm "movbe ecx, [5]" && enable yasm ||
4177 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4178 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4179 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4180 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4181 check_yasm "CPU amdnop" || disable cpunop
4185 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4192 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4194 check_ldflags -Wl,--as-needed
4196 if check_func dlopen; then
4198 elif check_func dlopen -ldl; then
4202 if ! disabled network; then
4203 check_func getaddrinfo $network_extralibs
4204 check_func getservbyport $network_extralibs
4205 check_func inet_aton $network_extralibs
4207 check_type netdb.h "struct addrinfo"
4208 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4209 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4210 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4211 check_type poll.h "struct pollfd"
4212 check_type netinet/sctp.h "struct sctp_event_subscribe"
4213 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4214 check_type netinet/in.h "struct sockaddr_in6"
4215 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4216 check_type "sys/types.h sys/socket.h" socklen_t
4218 # Prefer arpa/inet.h over winsock2
4219 if check_header arpa/inet.h ; then
4220 check_func closesocket
4221 elif check_header winsock2.h ; then
4222 check_func_headers winsock2.h closesocket -lws2 &&
4223 network_extralibs="-lws2" ||
4224 { check_func_headers winsock2.h closesocket -lws2_32 &&
4225 network_extralibs="-lws2_32"; } || disable winsock2_h network
4226 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4228 check_type ws2tcpip.h socklen_t
4229 check_type ws2tcpip.h "struct addrinfo"
4230 check_type ws2tcpip.h "struct group_source_req"
4231 check_type ws2tcpip.h "struct ip_mreq_source"
4232 check_type ws2tcpip.h "struct ipv6_mreq"
4233 check_type winsock2.h "struct pollfd"
4234 check_struct winsock2.h "struct sockaddr" sa_len
4235 check_type ws2tcpip.h "struct sockaddr_in6"
4236 check_type ws2tcpip.h "struct sockaddr_storage"
4242 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4243 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4244 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4245 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4247 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4248 check_func ${malloc_prefix}memalign && enable memalign
4249 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4251 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4252 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4256 check_func gethrtime
4258 check_func getrusage
4259 check_func gettimeofday
4262 check_func localtime_r
4263 check_func mach_absolute_time
4267 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4268 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4269 check_func sched_getaffinity
4270 check_func setrlimit
4271 check_func strerror_r
4276 check_func_headers io.h setmode
4277 check_func_headers stdlib.h getenv
4279 check_func_headers windows.h CoTaskMemFree -lole32
4280 check_func_headers windows.h GetProcessAffinityMask
4281 check_func_headers windows.h GetProcessTimes
4282 check_func_headers windows.h GetSystemTimeAsFileTime
4283 check_func_headers windows.h LoadLibrary
4284 check_func_headers windows.h MapViewOfFile
4285 check_func_headers windows.h SetConsoleTextAttribute
4286 check_func_headers windows.h Sleep
4287 check_func_headers windows.h VirtualAlloc
4288 check_struct windows.h "CONDITION_VARIABLE" Ptr
4290 check_header direct.h
4291 check_header dlfcn.h
4292 check_header d3d11.h
4294 check_header dxva2api.h
4296 check_header mach/mach_time.h
4297 check_header malloc.h
4299 check_header sys/mman.h
4300 check_header sys/param.h
4301 check_header sys/resource.h
4302 check_header sys/select.h
4303 check_header sys/time.h
4304 check_header sys/un.h
4305 check_header unistd.h
4306 check_header valgrind/valgrind.h
4307 check_header vdpau/vdpau.h
4308 check_header vdpau/vdpau_x11.h
4309 check_header VideoDecodeAcceleration/VDADecoder.h
4310 check_header windows.h
4311 check_header X11/extensions/XvMClib.h
4313 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4314 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4315 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4317 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4319 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4320 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4321 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4323 if ! disabled w32threads && ! enabled pthreads; then
4324 check_func_headers "windows.h process.h" _beginthreadex &&
4325 enable w32threads || disable w32threads
4328 # check for some common methods of building with pthread support
4329 # do this before the optional library checks as some of them require pthreads
4330 if ! disabled pthreads && ! enabled w32threads; then
4332 if check_func pthread_join -pthread; then
4334 add_extralibs -pthread
4335 elif check_func pthread_join -pthreads; then
4336 add_cflags -pthreads
4337 add_extralibs -pthreads
4338 elif check_func pthread_join -lpthreadGC2; then
4339 add_extralibs -lpthreadGC2
4340 elif check_lib pthread.h pthread_join -lpthread; then
4342 elif ! check_func pthread_join; then
4347 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4348 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4350 check_lib math.h sin -lm && LIBM="-lm"
4351 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4357 for func in $MATH_FUNCS; do
4358 eval check_mathfunc $func \${${func}_args:-1}
4361 # these are off by default, so fail if requested and not available
4362 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4363 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4364 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4365 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4366 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4367 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4368 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4369 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4370 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4371 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4372 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4373 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4374 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4375 done || die "ERROR: libgsm not found"; }
4376 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4377 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4378 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4379 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4380 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4381 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4382 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4383 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4384 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4385 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4386 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4387 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4388 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4389 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4390 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4391 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4392 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4393 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4394 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4395 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4396 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4397 enabled libvpx_vp8_decoder && {
4398 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4399 disable libvpx_vp8_decoder;
4401 enabled libvpx_vp8_encoder && {
4402 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4403 disable libvpx_vp8_encoder;
4405 enabled libvpx_vp9_decoder && {
4406 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4407 disable libvpx_vp9_decoder;
4409 enabled libvpx_vp9_encoder && {
4410 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4411 disable libvpx_vp9_encoder;
4413 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4414 die "libvpx enabled but no supported decoders found"
4417 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4418 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4419 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4420 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4421 die "ERROR: libx264 version must be >= 0.118."; } &&
4422 { check_cpp_condition x264.h "X264_MPEG2" &&
4424 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4425 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4426 die "ERROR: libx265 version must be >= 57."; }
4427 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4428 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4429 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4430 { ! enabled cross_compile && {
4431 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4432 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4433 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4434 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4435 die "ERROR: mmal not found"; }
4436 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4437 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4438 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4439 die "ERROR: openssl not found"; }
4441 if enabled gnutls; then
4442 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4443 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4447 if enabled libdc1394; then
4448 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4449 enable libdc1394_2; } ||
4450 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4451 enable libdc1394_1; } ||
4452 die "ERROR: No version of libdc1394 found "
4455 if enabled nvenc; then
4456 check_header cuda.h || die "ERROR: cuda.h not found.";
4457 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4458 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4459 die "ERROR: NVENC API version 4 or older is not supported";
4462 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4463 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4464 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4468 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4469 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4471 check_header linux/fb.h
4472 check_header linux/videodev2.h
4473 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4475 check_header sys/videoio.h
4477 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4478 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4479 # w32api 3.12 had it defined wrong
4480 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4482 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4483 { check_header dev/bktr/ioctl_meteor.h &&
4484 check_header dev/bktr/ioctl_bt848.h; } ||
4485 { check_header machine/ioctl_meteor.h &&
4486 check_header machine/ioctl_bt848.h; } ||
4487 { check_header dev/video/meteor/ioctl_meteor.h &&
4488 check_header dev/video/bktr/ioctl_bt848.h; } ||
4489 check_header dev/ic/bt8xx.h
4491 check_header sndio.h
4492 check_header sys/soundcard.h
4493 check_header soundcard.h
4495 enabled_any alsa_indev alsa_outdev &&
4496 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4498 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4499 check_func jack_port_get_latency_range -ljack
4501 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4503 if enabled libcdio; then
4504 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4505 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4506 die "ERROR: No usable libcdio/cdparanoia found"
4509 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4511 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4512 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4513 enabled libxcb && die "ERROR: libxcb not found";
4514 } && disable x11grab && enable libxcb
4516 disabled libxcb_shm ||
4517 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4518 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4519 } && check_header sys/shm.h && enable libxcb_shm
4521 disabled libxcb_xfixes ||
4522 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4523 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4524 } && enable libxcb_xfixes
4526 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4527 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4530 if enabled x11grab; then
4531 enabled xlib || die "ERROR: Xlib not found"
4532 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4533 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4536 enabled vaapi && enabled xlib &&
4537 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4541 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4544 enabled vdpau && enabled xlib &&
4545 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4546 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4549 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4551 # add some useful compiler flags if supported
4552 check_cflags -Wdeclaration-after-statement
4554 check_cflags -Wdisabled-optimization
4555 check_cflags -Wpointer-arith
4556 check_cflags -Wredundant-decls
4557 check_cflags -Wcast-qual
4558 check_cflags -Wwrite-strings
4559 check_cflags -Wtype-limits
4560 check_cflags -Wundef
4561 check_cflags -Wmissing-prototypes
4562 check_cflags -Wstrict-prototypes
4563 enabled extra_warnings && check_cflags -Winline
4565 check_disable_warning(){
4566 warning_flag=-W${1#-Wno-}
4567 test_cflags $warning_flag && add_cflags $1
4570 check_disable_warning -Wno-parentheses
4571 check_disable_warning -Wno-switch
4572 check_disable_warning -Wno-format-zero-length
4573 check_disable_warning -Wno-pointer-sign
4575 # add some linker flags
4576 check_ldflags -Wl,--warn-common
4577 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4578 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4579 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4581 # add some strip flags
4582 # -wN '..@*' is more selective than -x, but not available everywhere.
4583 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4585 enabled neon_clobber_test &&
4586 check_ldflags -Wl,--wrap,avcodec_open2 \
4587 -Wl,--wrap,avcodec_decode_audio4 \
4588 -Wl,--wrap,avcodec_decode_video2 \
4589 -Wl,--wrap,avcodec_decode_subtitle2 \
4590 -Wl,--wrap,avcodec_encode_audio2 \
4591 -Wl,--wrap,avcodec_encode_video2 \
4592 -Wl,--wrap,avcodec_encode_subtitle \
4593 -Wl,--wrap,avresample_convert ||
4594 disable neon_clobber_test
4596 enabled xmm_clobber_test &&
4597 check_ldflags -Wl,--wrap,avcodec_open2 \
4598 -Wl,--wrap,avcodec_decode_audio4 \
4599 -Wl,--wrap,avcodec_decode_video2 \
4600 -Wl,--wrap,avcodec_decode_subtitle2 \
4601 -Wl,--wrap,avcodec_encode_audio2 \
4602 -Wl,--wrap,avcodec_encode_video2 \
4603 -Wl,--wrap,avcodec_encode_subtitle \
4604 -Wl,--wrap,avresample_convert \
4605 -Wl,--wrap,sws_scale ||
4606 disable xmm_clobber_test
4609 if test_ldflags -Wl,--version-script,$TMPV; then
4610 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4611 check_cc <<EOF && enable symver_asm_label
4612 void ff_foo(void) __asm__ ("av_foo@VERSION");
4613 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4615 check_cc <<EOF && enable symver_gnu_asm
4616 __asm__(".symver ff_foo,av_foo@VERSION");
4617 void ff_foo(void) {}
4621 if [ -z "$optflags" ]; then
4622 if enabled small; then
4623 optflags=$cflags_size
4624 elif enabled optimizations; then
4625 optflags=$cflags_speed
4627 optflags=$cflags_noopt
4633 enabled lto && check_ldflags "$@"
4637 if enabled lto; then
4638 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4640 check_ldflags -flto $cpuflags
4643 check_optflags $optflags
4644 check_optflags -fno-math-errno
4645 check_optflags -fno-signed-zeros
4647 if enabled icc; then
4648 # Just warnings, no remarks
4650 # -wd: Disable following warnings
4651 # 144, 167, 556: -Wno-pointer-sign
4652 # 1292: attribute "foo" ignored
4653 # 1419: external declaration in primary source file
4654 # 10006: ignoring unknown option -fno-signed-zeros
4655 # 10148: ignoring unknown option -Wno-parentheses
4656 # 10156: ignoring option '-W'; no argument required
4657 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4658 # 11030: Warning unknown option --as-needed
4659 # 10156: ignoring option '-export'; no argument required
4660 check_ldflags -wd10156,11030
4661 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4662 enable ebp_available
4663 if enabled x86_32; then
4664 icc_version=$($cc -dumpversion)
4665 test ${icc_version%%.*} -ge 11 &&
4666 check_cflags -falign-stack=maintain-16-byte ||
4667 disable aligned_stack
4669 elif enabled ccc; then
4670 # disable some annoying warnings
4671 add_cflags -msg_disable bitnotint
4672 add_cflags -msg_disable mixfuncvoid
4673 add_cflags -msg_disable nonstandcast
4674 add_cflags -msg_disable unsupieee
4675 elif enabled gcc; then
4676 check_optflags -fno-tree-vectorize
4677 check_cflags -Werror=implicit-function-declaration
4678 check_cflags -Werror=missing-prototypes
4679 check_cflags -Werror=return-type
4680 check_cflags -Werror=declaration-after-statement
4681 check_cflags -Werror=vla
4682 check_cflags -Werror=format-security
4683 check_cflags -fdiagnostics-color=auto
4684 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4685 elif enabled llvm_gcc; then
4686 check_cflags -mllvm -stack-alignment=16
4687 elif enabled clang; then
4688 check_cflags -mllvm -stack-alignment=16
4689 check_cflags -Qunused-arguments
4690 check_cflags -Werror=implicit-function-declaration
4691 check_cflags -Werror=missing-prototypes
4692 check_cflags -Werror=return-type
4693 elif enabled cparser; then
4694 add_cflags -Wno-missing-variable-declarations
4695 add_cflags -Wno-empty-statement
4696 elif enabled armcc; then
4697 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4698 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4699 # 2523: use of inline assembly is deprecated
4700 add_cflags -W${armcc_opt},--diag_suppress=2523
4701 add_cflags -W${armcc_opt},--diag_suppress=1207
4702 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4703 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4704 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4705 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4706 elif enabled tms470; then
4707 add_cflags -pds=824 -pds=837
4709 elif enabled pathscale; then
4710 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4711 elif enabled_any msvc icl; then
4712 enabled x86_32 && disable aligned_stack
4713 enabled_all x86_32 debug && add_cflags -Oy-
4714 enabled debug && add_ldflags -debug
4715 enable pragma_deprecated
4716 if enabled icl; then
4717 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4718 # (correctly) on icl 13.x.
4719 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4720 add_cflags -Qansi-alias
4721 # icl will pass the inline asm tests but inline asm is currently
4722 # not supported (build will fail)
4725 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4726 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4727 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4728 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4729 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4730 # MSVC 2013 and newer can handle it fine.
4731 # If this declspec fails, force including stdlib.h before the restrict redefinition
4732 # happens in config.h.
4733 if [ $_restrict != restrict ]; then
4734 check_cc <<EOF || add_cflags -FIstdlib.h
4735 __declspec($_restrict) void* foo(int);
4738 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4741 for pfx in "" host_; do
4742 varname=${pfx%_}cc_type
4743 eval "type=\$$varname"
4744 if [ $type = "msvc" ]; then
4745 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4746 static inline int foo(int a) { return a; }
4753 add_asflags -Qunused-arguments
4759 check_ldflags -Qunused-arguments
4765 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4768 add_cppflags -Dmain=plan9_main
4772 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4774 check_deps $CONFIG_LIST \
4779 enabled_all dxva2 CoTaskMemFree &&
4780 prepend avconv_libs $($ldflags_filter "-lole32") &&
4783 ! enabled_any memalign posix_memalign aligned_malloc &&
4784 enabled simd_align_16 && enable memalign_hack
4786 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4788 for thread in $THREADS_LIST; do
4789 if enabled $thread; then
4790 test -n "$thread_type" &&
4791 die "ERROR: Only one thread type must be selected." ||
4792 thread_type="$thread"
4796 enabled zlib && add_cppflags -DZLIB_CONST
4798 # conditional library dependencies, in linking order
4799 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
4800 enabled resample_filter && prepend avfilter_deps "avresample"
4801 enabled scale_filter && prepend avfilter_deps "swscale"
4803 enabled opus_decoder && prepend avcodec_deps "avresample"
4807 eval "deps=\$$lib_deps"
4808 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4812 map 'expand_deps $v' $LIBRARY_LIST
4814 echo "install prefix $prefix"
4815 echo "source path $source_path"
4816 echo "C compiler $cc"
4817 echo "C library $libc_type"
4818 if test "$host_cc" != "$cc"; then
4819 echo "host C compiler $host_cc"
4820 echo "host C library $host_libc_type"
4822 echo "ARCH $arch ($cpu)"
4823 if test "$build_suffix" != ""; then
4824 echo "build suffix $build_suffix"
4826 if test "$extra_version" != ""; then
4827 echo "version string suffix $extra_version"
4829 echo "big-endian ${bigendian-no}"
4830 echo "runtime cpu detection ${runtime_cpudetect-no}"
4831 if enabled x86; then
4832 echo "${yasmexe} ${yasm-no}"
4833 echo "MMX enabled ${mmx-no}"
4834 echo "MMXEXT enabled ${mmxext-no}"
4835 echo "3DNow! enabled ${amd3dnow-no}"
4836 echo "3DNow! extended enabled ${amd3dnowext-no}"
4837 echo "SSE enabled ${sse-no}"
4838 echo "SSSE3 enabled ${ssse3-no}"
4839 echo "AVX enabled ${avx-no}"
4840 echo "XOP enabled ${xop-no}"
4841 echo "FMA3 enabled ${fma3-no}"
4842 echo "FMA4 enabled ${fma4-no}"
4843 echo "i686 features enabled ${i686-no}"
4844 echo "CMOV is fast ${fast_cmov-no}"
4845 echo "EBX available ${ebx_available-no}"
4846 echo "EBP available ${ebp_available-no}"
4848 if enabled aarch64; then
4849 echo "NEON enabled ${neon-no}"
4850 echo "VFP enabled ${vfp-no}"
4852 if enabled arm; then
4853 echo "ARMv5TE enabled ${armv5te-no}"
4854 echo "ARMv6 enabled ${armv6-no}"
4855 echo "ARMv6T2 enabled ${armv6t2-no}"
4856 echo "VFP enabled ${vfp-no}"
4857 echo "NEON enabled ${neon-no}"
4859 if enabled ppc; then
4860 echo "AltiVec enabled ${altivec-no}"
4861 echo "VSX enabled ${vsx-no}"
4862 echo "POWER8 enabled ${power8-no}"
4863 echo "PPC 4xx optimizations ${ppc4xx-no}"
4864 echo "dcbzl available ${dcbzl-no}"
4866 echo "debug symbols ${debug-no}"
4867 echo "optimize for size ${small-no}"
4868 echo "optimizations ${optimizations-no}"
4869 echo "static ${static-no}"
4870 echo "shared ${shared-no}"
4871 echo "new filter support ${avfilter-no}"
4872 echo "network support ${network-no}"
4873 echo "threading support ${thread_type-no}"
4874 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4875 echo "SDL support ${sdl-no}"
4876 test -n "$random_seed" &&
4877 echo "random seed ${random_seed}"
4880 echo "External libraries:"
4881 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4884 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4885 echo "Enabled ${type}s:"
4886 eval list=\$$(toupper $type)_LIST
4887 print_enabled '_*' $list | print_3_columns
4891 license="LGPL version 2.1 or later"
4892 if enabled nonfree; then
4893 license="nonfree and unredistributable"
4894 elif enabled gplv3; then
4895 license="GPL version 3 or later"
4896 elif enabled lgplv3; then
4897 license="LGPL version 3 or later"
4898 elif enabled gpl; then
4899 license="GPL version 2 or later"
4902 echo "License: $license"
4904 echo "Creating config.mak and config.h..."
4906 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4908 config_files="$TMPH config.mak"
4910 cat > config.mak <<EOF
4911 # Automatically generated by configure - do not modify!
4912 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4914 LIBDIR=\$(DESTDIR)$libdir
4915 SHLIBDIR=\$(DESTDIR)$shlibdir
4916 INCDIR=\$(DESTDIR)$incdir
4917 BINDIR=\$(DESTDIR)$bindir
4918 DATADIR=\$(DESTDIR)$datadir
4919 DOCDIR=\$(DESTDIR)$docdir
4920 MANDIR=\$(DESTDIR)$mandir
4921 SRC_PATH=$source_path
4924 INTRINSICS=$intrinsics
4929 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4931 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4953 LDEXEFLAGS=$LDEXEFLAGS
4954 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4955 STRIPFLAGS=$STRIPFLAGS
4956 YASMFLAGS=$YASMFLAGS
4957 BUILDSUF=$build_suffix
4965 EXTRA_VERSION=$extra_version
4967 CCDEP_FLAGS=$CCDEP_FLAGS
4969 ASDEP_FLAGS=$ASDEP_FLAGS
4970 CC_DEPFLAGS=$CC_DEPFLAGS
4971 AS_DEPFLAGS=$AS_DEPFLAGS
4974 HOSTCFLAGS=$host_cflags
4975 HOSTCPPFLAGS=$host_cppflags
4976 HOSTEXESUF=$HOSTEXESUF
4977 HOSTLDFLAGS=$host_ldflags
4980 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4981 HOSTCCDEP=$HOSTCCDEP
4982 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4983 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4987 TARGET_EXEC=$target_exec $target_exec_args
4988 TARGET_PATH=$target_path
4989 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4990 CFLAGS-avplay=$sdl_cflags
4991 ZLIB=$($ldflags_filter -lz)
4992 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4993 EXTRALIBS=$extralibs
4994 COMPAT_OBJS=$compat_objs
4997 LIBTARGET=${LIBTARGET}
4998 SLIBNAME=${SLIBNAME}
4999 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5000 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5001 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5002 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5003 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5004 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5005 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5006 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5007 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5012 name=$(toupper $lcname)
5013 file=$source_path/$lcname/version.h
5014 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5015 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5016 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5017 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5018 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5021 map 'get_version $v' $LIBRARY_LIST
5023 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5025 print_program_libs(){
5026 eval "program_libs=\$${1}_libs"
5027 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5030 map 'print_program_libs $v' $PROGRAM_LIST
5033 /* Automatically generated by configure - do not modify! */
5034 #ifndef LIBAV_CONFIG_H
5035 #define LIBAV_CONFIG_H
5036 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5037 #define LIBAV_LICENSE "$(c_escape $license)"
5038 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5039 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5040 #define restrict $_restrict
5041 #define EXTERN_PREFIX "${extern_prefix}"
5042 #define EXTERN_ASM ${extern_prefix}
5043 #define SLIBSUF "$SLIBSUF"
5046 test -n "$malloc_prefix" &&
5047 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5049 if enabled yasm; then
5050 append config_files $TMPASM
5054 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5056 print_config ARCH_ "$config_files" $ARCH_LIST
5057 print_config HAVE_ "$config_files" $HAVE_LIST
5058 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5062 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5064 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5065 cp_if_changed $TMPH config.h
5068 enabled yasm && cp_if_changed $TMPASM config.asm
5071 /* Generated by ffconf */
5072 #ifndef AVUTIL_AVCONFIG_H
5073 #define AVUTIL_AVCONFIG_H
5076 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5078 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5080 cp_if_changed $TMPH libavutil/avconfig.h
5082 test -n "$WARNINGS" && printf "\n$WARNINGS"
5084 # build pkg-config files
5087 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5090 pkgconfig_generate(){
5092 shortname=${name#lib}${build_suffix}
5096 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5097 requires=${requires%, }
5098 enabled ${name#lib} || return 0
5100 cat <<EOF > $name/$name.pc
5102 exec_prefix=\${prefix}
5107 Description: $comment
5109 Requires: $(enabled shared || echo $requires)
5110 Requires.private: $(enabled shared && echo $requires)
5112 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5113 Libs.private: $(enabled shared && echo $libs)
5114 Cflags: -I\${includedir}
5116 cat <<EOF > $name/$name-uninstalled.pc
5119 libdir=\${pcfiledir}
5120 includedir=${source_path}
5123 Description: $comment
5127 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5128 Cflags: -I\${includedir}
5132 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5133 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5134 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5135 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5136 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5137 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5138 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"