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]
91 --enable-gpl allow use of GPL code, the resulting libs
92 and binaries will be under GPL [no]
93 --enable-version3 upgrade (L)GPL to version 3 [no]
94 --enable-nonfree allow use of nonfree code, the resulting libs
95 and binaries will be unredistributable [no]
97 Configuration options:
98 --disable-static do not build static libraries [no]
99 --enable-shared build shared libraries [no]
100 --enable-small optimize for size instead of speed
101 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
102 --enable-gray enable full grayscale support (slower color)
103 --disable-swscale-alpha disable alpha channel support in swscale
104 --disable-all disable building components, libraries and programs
107 --disable-programs do not build command line programs
108 --disable-avconv disable avconv build
109 --disable-avplay disable avplay build
110 --disable-avprobe disable avprobe build
111 --disable-avserver disable avserver build
114 --disable-doc do not build documentation
115 --disable-avdevice disable libavdevice build
116 --disable-avcodec disable libavcodec build
117 --disable-avformat disable libavformat build
118 --disable-avutil disable libavutil build
119 --disable-swscale disable libswscale build
120 --disable-avfilter disable video filter support [no]
121 --disable-avresample disable libavresample build [no]
122 --disable-pthreads disable pthreads [auto]
123 --disable-w32threads disable Win32 threads [auto]
124 --disable-network disable network support [no]
125 --disable-dct disable DCT code
126 --disable-error-resilience disable error resilience code
127 --disable-lsp disable LSP code
128 --disable-lzo disable LZO decoder code
129 --disable-mdct disable MDCT code
130 --disable-rdft disable RDFT code
131 --disable-fft disable FFT code
133 Hardware accelerators:
134 --enable-dxva2 enable DXVA2 code
135 --enable-vaapi enable VAAPI code
136 --enable-vda enable VDA code
137 --enable-vdpau enable VDPAU code
139 Individual component options:
140 --disable-everything disable all components listed below
141 --disable-encoder=NAME disable encoder NAME
142 --enable-encoder=NAME enable encoder NAME
143 --disable-encoders disable all encoders
144 --disable-decoder=NAME disable decoder NAME
145 --enable-decoder=NAME enable decoder NAME
146 --disable-decoders disable all decoders
147 --disable-hwaccel=NAME disable hwaccel NAME
148 --enable-hwaccel=NAME enable hwaccel NAME
149 --disable-hwaccels disable all hwaccels
150 --disable-muxer=NAME disable muxer NAME
151 --enable-muxer=NAME enable muxer NAME
152 --disable-muxers disable all muxers
153 --disable-demuxer=NAME disable demuxer NAME
154 --enable-demuxer=NAME enable demuxer NAME
155 --disable-demuxers disable all demuxers
156 --enable-parser=NAME enable parser NAME
157 --disable-parser=NAME disable parser NAME
158 --disable-parsers disable all parsers
159 --enable-bsf=NAME enable bitstream filter NAME
160 --disable-bsf=NAME disable bitstream filter NAME
161 --disable-bsfs disable all bitstream filters
162 --enable-protocol=NAME enable protocol NAME
163 --disable-protocol=NAME disable protocol NAME
164 --disable-protocols disable all protocols
165 --enable-indev=NAME enable input device NAME
166 --disable-indev=NAME disable input device NAME
167 --disable-indevs disable input devices
168 --enable-outdev=NAME enable output device NAME
169 --disable-outdev=NAME disable output device NAME
170 --disable-outdevs disable output devices
171 --disable-devices disable all devices
172 --enable-filter=NAME enable filter NAME
173 --disable-filter=NAME disable filter NAME
174 --disable-filters disable all filters
176 External library support:
177 --enable-avisynth enable reading of AviSynth script files [no]
178 --enable-bzlib enable bzlib [autodetect]
179 --enable-frei0r enable frei0r video filtering
180 --enable-gnutls enable gnutls [no]
181 --enable-libcdio enable audio CD grabbing with libcdio
182 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
184 --enable-libfaac enable AAC encoding via libfaac [no]
185 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
186 --enable-libfreetype enable libfreetype [no]
187 --enable-libgsm enable GSM de/encoding via libgsm [no]
188 --enable-libilbc enable iLBC de/encoding via libilbc [no]
189 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
190 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
191 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
192 --enable-libopencv enable video filtering via libopencv [no]
193 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
194 --enable-libopus enable Opus decoding via libopus [no]
195 --enable-libpulse enable Pulseaudio input via libpulse [no]
196 --enable-librtmp enable RTMP[E] support via librtmp [no]
197 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
198 --enable-libspeex enable Speex de/encoding via libspeex [no]
199 --enable-libtheora enable Theora encoding via libtheora [no]
200 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
201 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
202 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
203 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
204 --enable-libwavpack enable wavpack encoding via libwavpack [no]
205 --enable-libwebp enable WebP encoding via libwebp [no]
206 --enable-libx264 enable H.264 encoding via x264 [no]
207 --enable-libxavs enable AVS encoding via xavs [no]
208 --enable-libxvid enable Xvid encoding via xvidcore,
209 native MPEG-4/Xvid encoder exists [no]
210 --enable-openssl enable openssl [no]
211 --enable-x11grab enable X11 grabbing [no]
212 --enable-zlib enable zlib [autodetect]
214 Advanced options (experts only):
215 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
216 --enable-cross-compile assume a cross-compiler is used
217 --sysroot=PATH root of cross-build tree
218 --sysinclude=PATH location of cross-build system headers
219 --target-os=OS compiler targets OS [$target_os]
220 --target-exec=CMD command to run executables on target
221 --target-path=DIR path to view of build directory on target
222 --target-samples=DIR path to samples directory on target
223 --toolchain=NAME set tool defaults according to NAME
225 --ar=AR use archive tool AR [$ar_default]
226 --as=AS use assembler AS [$as_default]
227 --cc=CC use C compiler CC [$cc_default]
228 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
229 --ld=LD use linker LD
230 --host-cc=HOSTCC use host C compiler HOSTCC
231 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
232 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
233 --host-ld=HOSTLD use host linker HOSTLD
234 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
235 --host-libs=HLIBS use libs HLIBS when linking for host
236 --host-os=OS compiler host OS [$target_os]
237 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
238 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
239 --extra-libs=ELIBS add ELIBS [$ELIBS]
240 --extra-version=STRING version string suffix []
241 --optflags=OPTFLAGS override optimization-related compiler flags
242 --build-suffix=SUFFIX library name suffix []
243 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
244 --arch=ARCH select architecture [$arch]
245 --cpu=CPU select the minimum required CPU (affects
246 instruction selection, may crash on older CPUs)
247 --enable-pic build position-independent code
248 --enable-sram allow use of on-chip SRAM
249 --enable-thumb compile for Thumb instruction set
250 --disable-symver disable symbol versioning
251 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
252 --disable-safe-bitstream-reader
253 disable buffer boundary checking in bitreaders
254 (faster, but may crash)
255 --enable-memalign-hack emulate memalign, interferes with memory debuggers
256 --enable-lto use link-time optimization
258 Optimization options (experts only):
259 --disable-asm disable all assembler optimizations
260 --disable-altivec disable AltiVec optimizations
261 --disable-amd3dnow disable 3DNow! optimizations
262 --disable-amd3dnowext disable 3DNow! extended optimizations
263 --disable-mmx disable MMX optimizations
264 --disable-mmxext disable MMXEXT optimizations
265 --disable-sse disable SSE optimizations
266 --disable-sse2 disable SSE2 optimizations
267 --disable-sse3 disable SSE3 optimizations
268 --disable-ssse3 disable SSSE3 optimizations
269 --disable-sse4 disable SSE4 optimizations
270 --disable-sse42 disable SSE4.2 optimizations
271 --disable-avx disable AVX optimizations
272 --disable-fma4 disable FMA4 optimizations
273 --disable-avx2 disable AVX2 optimizations
274 --disable-armv5te disable armv5te optimizations
275 --disable-armv6 disable armv6 optimizations
276 --disable-armv6t2 disable armv6t2 optimizations
277 --disable-vfp disable VFP optimizations
278 --disable-neon disable NEON optimizations
279 --disable-vis disable VIS optimizations
280 --disable-inline-asm disable use of inline assembler
281 --disable-yasm disable use of yasm assembler
283 Developer options (useful when working on Libav itself):
284 --disable-debug disable debugging symbols
285 --enable-debug=LEVEL set the debug level [$debuglevel]
286 --disable-optimizations disable compiler optimizations
287 --enable-extra-warnings enable more compiler warnings
288 --samples=PATH location of test samples for FATE, if not set use
289 \$LIBAV_SAMPLES at make invocation time.
290 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
291 should be used only for debugging purposes)
292 --enable-random randomly enable/disable components
294 --enable-random=LIST randomly enable/disable specific components or
295 --disable-random=LIST component groups. LIST is a comma-separated list
296 of NAME[:PROB] entries where NAME is a component
297 (group) and PROB the probability associated with
299 --random-seed=VALUE seed value for --enable/disable-random
301 NOTE: Object files are built at the place where configure is launched.
309 echo "$@" >> $logfile
314 pr -n -t $1 >> $logfile
325 WARNINGS="${WARNINGS}WARNING: $*\n"
332 If you think configure made a mistake, make sure you are using the latest
333 version from Git. If the latest version fails, report the problem to the
334 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
336 if disabled logging; then
338 Rerun configure with logging enabled (do not use --disable-logging), and
339 include the log this produces with your report.
343 Include the log file "$logfile" produced by configure as this will help
350 # Avoid locale weirdness, besides we really just want to translate ASCII.
352 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
356 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
360 echo "$*" | sed 's/["\\]/\\\0/g'
364 v=$(echo "$1" | sed "s/'/'\\\\''/g")
365 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
370 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
377 eval "case $v in $pat) echo $v ;; esac"
385 eval "case $v in $pat) ;; *) echo $v ;; esac"
392 for v; do eval $m; done
398 for v; do echo ${v}${suffix}; done
413 eval : \${$var:=$value}
418 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
424 eval $(sanitize_var_name "$var")='$*'
428 eval echo \$$(sanitize_var_name "$1")
433 eval level=\${${pvar}_level:=0}
434 eval ${pvar}_${level}="\$$pvar"
435 eval ${pvar}_level=$(($level+1))
441 eval level=\${${pvar}_level:-0}
442 test $level = 0 && continue
443 eval level=$(($level-1))
444 eval $pvar="\${${pvar}_${level}}"
445 eval ${pvar}_level=$level
446 eval unset ${pvar}_${level}
468 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
480 enabled $var && continue
481 eval sel="\$${var}_select"
482 eval sgs="\$${var}_suggest"
486 enable_deep_weak $sgs
498 disabled $var && continue
507 test "${1#!}" = "$1" && op== || op=!=
508 eval test "x\$${1#!}" $op "xyes"
512 test "${1#!}" = "$1" && op== || op=!=
513 eval test "x\$${1#!}" $op "xno"
518 enabled $opt || return 1
524 disabled $opt || return 1
530 enabled $opt && return 0
536 disabled $opt && return 0
543 eval : \${$opt:=\$${opt}_default}
551 [ $var = $value ] && return 0
559 enabled ${cfg}_checking && die "Circular dependency for $cfg."
560 disabled ${cfg}_checking && continue
561 enable ${cfg}_checking
564 eval dep_all="\$${cfg}_deps"
565 eval dep_any="\$${cfg}_deps_any"
566 eval dep_sel="\$${cfg}_select"
567 eval dep_sgs="\$${cfg}_suggest"
568 eval dep_ifa="\$${cfg}_if"
569 eval dep_ifn="\$${cfg}_if_any"
571 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
572 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
573 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
575 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
576 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
577 enabled_all $dep_all || disable $cfg
578 enabled_any $dep_any || disable $cfg
579 disabled_any $dep_sel && disable $cfg
581 if enabled $cfg; then
583 enable_deep_weak $dep_sgs
586 disable ${cfg}_checking
595 for cfg in $allopts; do
596 enabled $cfg || continue
597 eval dep_extralibs="\$${cfg}_extralibs"
598 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
606 map 'eval echo "$v \${$v:-no}"' "$@" |
607 awk "BEGIN { split(\"$files\", files) }
609 c = \"$pfx\" toupper(\$1);
615 if (file ~ /\\.h\$/) {
616 printf(\"#define %s %d\\n\", c, v) >>file;
617 } else if (file ~ /\\.asm\$/) {
618 printf(\"%%define %s %d\\n\", c, v) >>file;
619 } else if (file ~ /\\.mak\$/) {
620 n = -v ? \"\" : \"!\";
621 printf(\"%s%s=yes\\n\", n, c) >>file;
631 enabled $v && printf "%s\n" ${v%$suf};
638 eval "$var=\"\$$var $*\""
644 eval "$var=\"$* \$$var\""
652 append CFLAGS $($cflags_filter "$@")
656 append ASFLAGS $($asflags_filter "$@")
660 append LDFLAGS $($ldflags_filter "$@")
664 append STRIPFLAGS "$@"
668 prepend extralibs $($ldflags_filter "$@")
672 append host_cppflags "$@"
676 append host_cflags $($host_cflags_filter "$@")
680 append host_ldflags $($host_ldflags_filter "$@")
684 append compat_objs $1
686 map 'add_cppflags -D$v' "$@"
691 "$@" >> $logfile 2>&1
695 eval printf '%s\\n' $CC_O
699 eval printf '%s\\n' $CC_E
706 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
713 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
717 eval printf '%s\\n' $AS_O
724 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
728 log check_inline_asm "$@"
733 check_cc "$@" <<EOF && enable $name
734 void foo(void){ __asm__ volatile($code); }
740 check_inline_asm ${1}_inline "\"$2\""
741 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
749 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
753 eval printf '%s\\n' $LD_O
758 flags=$(filter_out '-l*' "$@")
759 libs=$(filter '-l*' "$@")
760 check_cc $($cflags_filter $flags) || return
761 flags=$($ldflags_filter $flags)
762 libs=$($ldflags_filter $libs)
763 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
768 test "${hdr%.h}" = "${hdr}" &&
769 echo "#include $hdr" ||
770 echo "#include <$hdr>"
780 for hdr in $headers; do
783 echo "int main(void) { $code; return 0; }"
784 } | check_$check "$@"
788 log check_cppflags "$@"
789 check_cc "$@" <<EOF && append CPPFLAGS "$@"
796 set -- $($cflags_filter "$@")
803 log check_cflags "$@"
804 test_cflags "$@" && add_cflags "$@"
808 log test_ldflags "$@"
810 int main(void){ return 0; }
815 log check_ldflags "$@"
816 test_ldflags "$@" && add_ldflags "$@"
820 log test_stripflags "$@"
821 # call check_cc to get a fresh TMPO
823 int main(void) { return 0; }
825 check_cmd $strip $STRIPFLAGS "$@" $TMPO
829 log check_stripflags "$@"
830 test_stripflags "$@" && add_stripflags "$@"
834 log check_header "$@"
838 check_cpp "$@" <<EOF && enable_safe $header
849 check_ld "$@" <<EOF && enable $func
851 int main(void){ $func(); }
856 log check_mathfunc "$@"
860 test $narg = 2 && args="f, g" || args="f"
862 check_ld "$@" <<EOF && enable $func
864 float foo(float f, float g) { return $func($args); }
865 int main(void){ return 0; }
869 check_func_headers(){
870 log check_func_headers "$@"
875 for hdr in $headers; do
878 for func in $funcs; do
879 echo "long check_$func(void) { return (long) $func; }"
881 echo "int main(void) { return 0; }"
882 } | check_ld "$@" && enable $funcs && enable_safe $headers
885 check_cpp_condition(){
886 log check_cpp_condition "$@"
893 #error "unsatisfied condition: $condition"
903 check_header $header && check_func $func "$@" && add_extralibs "$@"
911 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
915 log check_pkg_config "$@"
920 check_cmd $pkg_config --exists --print-errors $pkg || return
921 pkg_cflags=$($pkg_config --cflags $pkg)
922 pkg_libs=$($pkg_config --libs $pkg)
923 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
924 set_safe ${pkg}_cflags $pkg_cflags &&
925 set_safe ${pkg}_libs $pkg_libs
929 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
935 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
936 # are safe but may not be available everywhere. Thus we use
937 # raise(SIGTERM) instead. The check is run in a subshell so we
938 # can redirect the "Terminated" message from the shell. SIGBUS
939 # is not defined by standard C so it is used conditionally.
941 (check_exec "$@") >> $logfile 2>&1 <<EOF
943 static void sighandler(int sig){
949 int (*func_ptr)(void) = foo;
951 signal(SIGILL, sighandler);
952 signal(SIGFPE, sighandler);
953 signal(SIGSEGV, sighandler);
955 signal(SIGBUS, sighandler);
968 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
972 log check_struct "$@"
977 disable_safe "${struct}_${member}"
978 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
979 enable_safe "${struct}_${member}"
983 log check_builtin "$@"
989 check_code ld "$headers" "$builtin" "$@" && enable "$name"
997 check_lib $header $func "$@" || die "ERROR: $name not found"
1005 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1008 require_pkg_config(){
1010 check_pkg_config "$@" || die "ERROR: $pkg not found"
1011 add_cflags $(get_safe ${pkg}_cflags)
1012 add_extralibs $(get_safe ${pkg}_libs)
1016 eval printf '%s\\n' $HOSTCC_E
1020 eval printf '%s\\n' $HOSTCC_O
1024 log check_host_cc "$@"
1027 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1031 log check_host_cpp "$@"
1034 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1037 check_host_cppflags(){
1038 log check_host_cppflags "$@"
1039 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1044 check_host_cflags(){
1045 log check_host_cflags "$@"
1046 set -- $($host_cflags_filter "$@")
1047 check_host_cc "$@" <<EOF && append host_cflags "$@"
1052 check_host_cpp_condition(){
1053 log check_host_cpp_condition "$@"
1057 check_host_cpp "$@" <<EOF
1060 #error "unsatisfied condition: $condition"
1068 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1072 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1073 mkdir -p "$(dirname $2)"
1077 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1078 # system-dependent things.
1096 transcode_aac_example
1099 EXTERNAL_LIBRARY_LIST="
1162 $EXTERNAL_LIBRARY_LIST
1183 safe_bitstream_reader
1307 $(add_suffix _external $ARCH_EXT_LIST)
1308 $(add_suffix _inline $ARCH_EXT_LIST)
1326 cdio_paranoia_paranoia_h
1332 dev_bktr_ioctl_bt848_h
1333 dev_bktr_ioctl_meteor_h
1335 dev_video_bktr_ioctl_bt848_h
1336 dev_video_meteor_ioctl_meteor_h
1352 GetProcessAffinityMask
1353 GetProcessMemoryInfo
1355 GetSystemTimeAsFileTime
1366 jack_port_get_latency_range
1375 machine_ioctl_bt848_h
1376 machine_ioctl_meteor_h
1393 SetConsoleTextAttribute
1404 struct_group_source_req
1405 struct_ip_mreq_source
1408 struct_rusage_ru_maxrss
1410 struct_sockaddr_sa_len
1411 struct_sockaddr_storage
1412 struct_v4l2_frmivalenum_discrete
1415 sync_val_compare_and_swap
1439 # options emitted with CONFIG_ prefix but not available on the command line
1536 # code dependency declarations
1538 # architecture extensions
1547 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1555 x86_64_select="i686"
1556 x86_64_suggest="fast_cmov"
1559 amd3dnowext_deps="amd3dnow"
1572 mmx_external_deps="yasm"
1573 mmx_inline_deps="inline_asm"
1574 mmx_suggest="mmx_external mmx_inline"
1576 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1577 eval dep=\$${ext}_deps
1578 eval ${ext}_external_deps='"${dep}_external"'
1579 eval ${ext}_inline_deps='"${dep}_inline"'
1580 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1583 aligned_stack_if_any="ppc x86"
1584 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1585 fast_clz_if_any="alpha avr32 mips ppc x86"
1586 fast_unaligned_if_any="ppc x86"
1588 need_memalign="altivec neon sse"
1590 # system capabilities
1591 log2_deps="!libc_msvcrt"
1593 symver_if_any="symver_asm_label symver_gnu_asm"
1596 atomics_gcc_if="sync_val_compare_and_swap"
1597 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1598 atomics_win32_if="MemoryBarrier"
1599 atomics_native_if_any="$ATOMICS_LIST"
1600 threads_if_any="$THREADS_LIST"
1604 error_resilience_select="dsputil"
1605 lpc_select="dsputil"
1608 mpegaudio_select="mpegaudiodsp"
1609 mpegaudiodsp_select="dct"
1610 mpegvideo_select="dsputil hpeldsp videodsp"
1611 mpegvideoenc_select="mpegvideo"
1613 # decoders / encoders
1614 aac_decoder_select="mdct sinewin"
1615 aac_encoder_select="audio_frame_queue mdct sinewin"
1616 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1617 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1618 ac3_encoder_select="mdct ac3dsp dsputil"
1619 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1620 aic_decoder_select="dsputil golomb"
1621 alac_encoder_select="lpc"
1622 als_decoder_select="dsputil"
1623 amrnb_decoder_select="lsp"
1624 amrwb_decoder_select="lsp"
1625 amv_decoder_select="dsputil hpeldsp"
1626 ape_decoder_select="dsputil"
1627 asv1_decoder_select="dsputil"
1628 asv1_encoder_select="dsputil"
1629 asv2_decoder_select="dsputil"
1630 asv2_encoder_select="dsputil"
1631 atrac1_decoder_select="mdct sinewin"
1632 atrac3_decoder_select="mdct"
1633 bink_decoder_select="dsputil hpeldsp"
1634 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1635 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1636 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1637 cllc_decoder_select="dsputil"
1638 comfortnoise_encoder_select="lpc"
1639 cook_decoder_select="dsputil mdct sinewin"
1640 cscd_decoder_select="lzo"
1641 cscd_decoder_suggest="zlib"
1642 dca_decoder_select="mdct"
1643 dnxhd_decoder_select="dsputil"
1644 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1645 dvvideo_decoder_select="dsputil"
1646 dvvideo_encoder_select="dsputil"
1647 dxa_decoder_deps="zlib"
1648 eac3_decoder_select="ac3_decoder"
1649 eac3_encoder_select="ac3_encoder"
1650 eamad_decoder_select="aandcttables dsputil mpegvideo"
1651 eatgq_decoder_select="aandcttables dsputil"
1652 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1653 ffv1_decoder_select="dsputil golomb rangecoder"
1654 ffv1_encoder_select="dsputil rangecoder"
1655 ffvhuff_decoder_select="dsputil"
1656 ffvhuff_encoder_select="dsputil huffman"
1657 flac_decoder_select="golomb"
1658 flac_encoder_select="dsputil golomb lpc"
1659 flashsv_decoder_deps="zlib"
1660 flashsv_encoder_deps="zlib"
1661 flashsv2_decoder_deps="zlib"
1662 flv_decoder_select="h263_decoder"
1663 flv_encoder_select="h263_encoder"
1664 fourxm_decoder_select="dsputil"
1665 fraps_decoder_select="dsputil huffman"
1666 g2m_decoder_deps="zlib"
1667 g2m_decoder_select="dsputil"
1668 h261_decoder_select="error_resilience mpegvideo"
1669 h261_encoder_select="aandcttables mpegvideoenc"
1670 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1671 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1672 h263i_decoder_select="h263_decoder"
1673 h263p_encoder_select="h263_encoder"
1674 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1675 h264_decoder_suggest="error_resilience"
1676 hevc_decoder_select="dsputil golomb videodsp"
1677 huffyuv_decoder_select="dsputil"
1678 huffyuv_encoder_select="dsputil huffman"
1679 iac_decoder_select="dsputil fft mdct sinewin"
1680 imc_decoder_select="dsputil fft mdct sinewin"
1681 indeo3_decoder_select="hpeldsp"
1682 interplay_video_decoder_select="hpeldsp"
1683 jpegls_decoder_select="dsputil golomb hpeldsp"
1684 jpegls_encoder_select="golomb"
1685 jv_decoder_select="dsputil"
1686 lagarith_decoder_select="dsputil"
1687 ljpeg_encoder_select="aandcttables mpegvideoenc"
1688 loco_decoder_select="golomb"
1689 mdec_decoder_select="dsputil error_resilience mpegvideo"
1690 metasound_decoder_select="lsp mdct sinewin"
1691 mimic_decoder_select="dsputil hpeldsp"
1692 mjpeg_decoder_select="dsputil hpeldsp"
1693 mjpegb_decoder_select="dsputil hpeldsp"
1694 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1695 mlp_decoder_select="dsputil mlp_parser"
1696 motionpixels_decoder_select="dsputil"
1697 mp1_decoder_select="mpegaudio"
1698 mp1float_decoder_select="mpegaudio"
1699 mp2_decoder_select="mpegaudio"
1700 mp2float_decoder_select="mpegaudio"
1701 mp3_decoder_select="mpegaudio"
1702 mp3adu_decoder_select="mpegaudio"
1703 mp3adufloat_decoder_select="mpegaudio"
1704 mp3float_decoder_select="mpegaudio"
1705 mp3on4_decoder_select="mpegaudio"
1706 mp3on4float_decoder_select="mpegaudio"
1707 mpc7_decoder_select="dsputil mpegaudiodsp"
1708 mpc8_decoder_select="dsputil mpegaudiodsp"
1709 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1710 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1711 mpeg1video_decoder_select="error_resilience mpegvideo"
1712 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1713 mpeg2video_decoder_select="error_resilience mpegvideo"
1714 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1715 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1716 mpeg4_encoder_select="h263_encoder"
1717 msmpeg4v1_decoder_select="h263_decoder"
1718 msmpeg4v2_decoder_select="h263_decoder"
1719 msmpeg4v2_encoder_select="h263_encoder"
1720 msmpeg4v3_decoder_select="h263_decoder"
1721 msmpeg4v3_encoder_select="h263_encoder"
1722 mss2_decoder_select="error_resilience vc1_decoder"
1723 mxpeg_decoder_select="dsputil hpeldsp"
1724 nellymoser_decoder_select="mdct sinewin"
1725 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1726 nuv_decoder_select="dsputil lzo"
1727 png_decoder_deps="zlib"
1728 png_decoder_select="dsputil"
1729 png_encoder_deps="zlib"
1730 png_encoder_select="dsputil"
1731 prores_decoder_select="dsputil"
1732 prores_encoder_select="dsputil"
1733 qcelp_decoder_select="lsp"
1734 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1735 ra_144_encoder_select="audio_frame_queue lpc"
1736 ralf_decoder_select="golomb"
1737 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1738 rv10_encoder_select="h263_encoder"
1739 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1740 rv20_encoder_select="h263_encoder"
1741 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1742 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1743 shorten_decoder_select="golomb"
1744 sipr_decoder_select="lsp"
1745 sp5x_decoder_select="dsputil hpeldsp"
1746 svq1_decoder_select="hpeldsp"
1747 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1748 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1749 svq3_decoder_suggest="error_resilience zlib"
1750 tak_decoder_select="dsputil"
1751 theora_decoder_select="vp3_decoder"
1752 tiff_decoder_suggest="zlib"
1753 tiff_encoder_suggest="zlib"
1754 thp_decoder_select="dsputil hpeldsp"
1755 truehd_decoder_select="mlp_decoder"
1756 truemotion2_decoder_select="dsputil"
1757 truespeech_decoder_select="dsputil"
1758 tscc_decoder_deps="zlib"
1759 twinvq_decoder_select="mdct lsp sinewin"
1760 utvideo_decoder_select="dsputil"
1761 utvideo_encoder_select="dsputil huffman"
1762 vble_decoder_select="dsputil"
1763 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1764 vc1image_decoder_select="vc1_decoder"
1765 vorbis_decoder_select="mdct"
1766 vorbis_encoder_select="mdct"
1767 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1768 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1769 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1770 vp6a_decoder_select="vp6_decoder"
1771 vp6f_decoder_select="vp6_decoder"
1772 vp8_decoder_select="h264pred videodsp"
1773 vp9_decoder_select="videodsp"
1774 webp_decoder_select="vp8_decoder"
1775 wmapro_decoder_select="mdct sinewin"
1776 wmav1_decoder_select="mdct sinewin"
1777 wmav1_encoder_select="mdct sinewin"
1778 wmav2_decoder_select="mdct sinewin"
1779 wmav2_encoder_select="mdct sinewin"
1780 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1781 wmv1_decoder_select="h263_decoder"
1782 wmv1_encoder_select="h263_encoder"
1783 wmv2_decoder_select="h263_decoder videodsp"
1784 wmv2_encoder_select="h263_encoder"
1785 wmv3_decoder_select="vc1_decoder"
1786 wmv3image_decoder_select="wmv3_decoder"
1787 zerocodec_decoder_deps="zlib"
1788 zlib_decoder_deps="zlib"
1789 zlib_encoder_deps="zlib"
1790 zmbv_decoder_deps="zlib"
1791 zmbv_encoder_deps="zlib"
1793 # hardware accelerators
1794 dxva2_deps="dxva2api_h"
1795 vaapi_deps="va_va_h"
1796 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1797 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1798 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1800 h263_vaapi_hwaccel_deps="vaapi"
1801 h263_vaapi_hwaccel_select="h263_decoder"
1802 h263_vdpau_hwaccel_deps="vdpau"
1803 h263_vdpau_hwaccel_select="h263_decoder"
1804 h264_dxva2_hwaccel_deps="dxva2"
1805 h264_dxva2_hwaccel_select="h264_decoder"
1806 h264_vaapi_hwaccel_deps="vaapi"
1807 h264_vaapi_hwaccel_select="h264_decoder"
1808 h264_vda_hwaccel_deps="vda"
1809 h264_vda_hwaccel_select="h264_decoder"
1810 h264_vdpau_hwaccel_deps="vdpau"
1811 h264_vdpau_hwaccel_select="h264_decoder"
1812 mpeg1_vdpau_hwaccel_deps="vdpau"
1813 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1814 mpeg2_dxva2_hwaccel_deps="dxva2"
1815 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1816 mpeg2_vaapi_hwaccel_deps="vaapi"
1817 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1818 mpeg2_vdpau_hwaccel_deps="vdpau"
1819 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1820 mpeg4_vaapi_hwaccel_deps="vaapi"
1821 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1822 mpeg4_vdpau_hwaccel_deps="vdpau"
1823 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1824 vc1_dxva2_hwaccel_deps="dxva2"
1825 vc1_dxva2_hwaccel_select="vc1_decoder"
1826 vc1_vaapi_hwaccel_deps="vaapi"
1827 vc1_vaapi_hwaccel_select="vc1_decoder"
1828 vc1_vdpau_hwaccel_deps="vdpau"
1829 vc1_vdpau_hwaccel_select="vc1_decoder"
1830 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1831 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1832 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1835 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1836 mpeg4video_parser_select="error_resilience mpegvideo"
1837 mpegvideo_parser_select="error_resilience mpegvideo"
1838 vc1_parser_select="mpegvideo"
1840 # external libraries
1841 libfaac_encoder_deps="libfaac"
1842 libfaac_encoder_select="audio_frame_queue"
1843 libfdk_aac_decoder_deps="libfdk_aac"
1844 libfdk_aac_encoder_deps="libfdk_aac"
1845 libfdk_aac_encoder_select="audio_frame_queue"
1846 libgsm_decoder_deps="libgsm"
1847 libgsm_encoder_deps="libgsm"
1848 libgsm_ms_decoder_deps="libgsm"
1849 libgsm_ms_encoder_deps="libgsm"
1850 libilbc_decoder_deps="libilbc"
1851 libilbc_encoder_deps="libilbc"
1852 libmp3lame_encoder_deps="libmp3lame"
1853 libmp3lame_encoder_select="audio_frame_queue"
1854 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1855 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1856 libopencore_amrnb_encoder_select="audio_frame_queue"
1857 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1858 libopenjpeg_decoder_deps="libopenjpeg"
1859 libopenjpeg_encoder_deps="libopenjpeg"
1860 libopus_decoder_deps="libopus"
1861 libopus_encoder_deps="libopus"
1862 libopus_encoder_select="audio_frame_queue"
1863 libschroedinger_decoder_deps="libschroedinger"
1864 libschroedinger_encoder_deps="libschroedinger"
1865 libspeex_decoder_deps="libspeex"
1866 libspeex_encoder_deps="libspeex"
1867 libspeex_encoder_select="audio_frame_queue"
1868 libtheora_encoder_deps="libtheora"
1869 libvo_aacenc_encoder_deps="libvo_aacenc"
1870 libvo_aacenc_encoder_select="audio_frame_queue"
1871 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1872 libvorbis_encoder_deps="libvorbis"
1873 libvorbis_encoder_select="audio_frame_queue"
1874 libvpx_vp8_decoder_deps="libvpx"
1875 libvpx_vp8_encoder_deps="libvpx"
1876 libvpx_vp9_decoder_deps="libvpx"
1877 libvpx_vp9_encoder_deps="libvpx"
1878 libwavpack_encoder_deps="libwavpack"
1879 libwebp_encoder_deps="libwebp"
1880 libx264_encoder_deps="libx264"
1881 libxavs_encoder_deps="libxavs"
1882 libxvid_encoder_deps="libxvid"
1885 ac3_demuxer_select="ac3_parser"
1886 asf_demuxer_select="riffdec"
1887 asf_muxer_select="riffenc"
1888 asf_stream_muxer_select="asf_muxer"
1889 avi_demuxer_select="riffdec"
1890 avi_muxer_select="riffenc"
1891 avisynth_demuxer_deps="avisynth"
1892 avisynth_demuxer_select="riffdec"
1893 caf_demuxer_select="riffdec"
1894 dirac_demuxer_select="dirac_parser"
1895 dxa_demuxer_select="riffdec"
1896 eac3_demuxer_select="ac3_parser"
1897 f4v_muxer_select="mov_muxer"
1898 flac_demuxer_select="flac_parser"
1899 hds_muxer_select="flv_muxer"
1900 hls_muxer_select="mpegts_muxer"
1901 ipod_muxer_select="mov_muxer"
1902 ismv_muxer_select="mov_muxer"
1903 matroska_audio_muxer_select="matroska_muxer"
1904 matroska_demuxer_select="riffdec"
1905 matroska_demuxer_suggest="bzlib lzo zlib"
1906 matroska_muxer_select="riffenc"
1907 mmf_muxer_select="riffenc"
1908 mov_demuxer_select="riffdec"
1909 mov_demuxer_suggest="zlib"
1910 mov_muxer_select="riffenc rtpenc_chain"
1911 mp3_demuxer_select="mpegaudio_parser"
1912 mp4_muxer_select="mov_muxer"
1913 mpegts_muxer_select="adts_muxer latm_muxer"
1914 mpegtsraw_demuxer_select="mpegts_demuxer"
1915 mxf_d10_muxer_select="mxf_muxer"
1916 nut_muxer_select="riffenc"
1917 nuv_demuxer_select="riffdec"
1918 ogg_demuxer_select="golomb"
1919 psp_muxer_select="mov_muxer"
1920 rtp_demuxer_select="sdp_demuxer"
1921 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1922 rtsp_demuxer_select="http_protocol rtpdec"
1923 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1924 sap_demuxer_select="sdp_demuxer"
1925 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1926 sdp_demuxer_select="rtpdec"
1927 smoothstreaming_muxer_select="ismv_muxer"
1928 spdif_muxer_select="aac_parser"
1929 tak_demuxer_select="tak_parser"
1930 tg2_muxer_select="mov_muxer"
1931 tgp_muxer_select="mov_muxer"
1932 w64_demuxer_select="wav_demuxer"
1933 wav_demuxer_select="riffdec"
1934 wav_muxer_select="riffenc"
1935 webm_muxer_select="riffenc"
1936 wtv_demuxer_select="riffdec"
1937 xmv_demuxer_select="riffdec"
1938 xwma_demuxer_select="riffdec"
1941 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1942 alsa_outdev_deps="alsa_asoundlib_h"
1943 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1944 dv1394_indev_deps="dv1394"
1945 dv1394_indev_select="dv_demuxer"
1946 fbdev_indev_deps="linux_fb_h"
1947 jack_indev_deps="jack_jack_h pthreads"
1948 libcdio_indev_deps="libcdio"
1949 libdc1394_indev_deps="libdc1394"
1950 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1951 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1952 pulse_indev_deps="libpulse"
1953 sndio_indev_deps="sndio_h"
1954 sndio_outdev_deps="sndio_h"
1955 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1956 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1957 vfwcap_indev_extralibs="-lavicap32"
1958 x11grab_indev_deps="x11grab XShmCreateImage"
1961 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1962 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1963 ffrtmpcrypt_protocol_select="tcp_protocol"
1964 ffrtmphttp_protocol_deps="!librtmp_protocol"
1965 ffrtmphttp_protocol_select="http_protocol"
1966 gopher_protocol_select="network"
1967 httpproxy_protocol_select="tcp_protocol"
1968 http_protocol_select="tcp_protocol"
1969 https_protocol_select="tls_protocol"
1970 librtmp_protocol_deps="librtmp"
1971 librtmpe_protocol_deps="librtmp"
1972 librtmps_protocol_deps="librtmp"
1973 librtmpt_protocol_deps="librtmp"
1974 librtmpte_protocol_deps="librtmp"
1975 mmsh_protocol_select="http_protocol"
1976 mmst_protocol_select="network"
1977 rtmp_protocol_deps="!librtmp_protocol"
1978 rtmp_protocol_select="tcp_protocol"
1979 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1980 rtmps_protocol_deps="!librtmp_protocol"
1981 rtmps_protocol_select="tls_protocol"
1982 rtmpt_protocol_select="ffrtmphttp_protocol"
1983 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1984 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1985 rtp_protocol_select="udp_protocol"
1986 sctp_protocol_deps="struct_sctp_event_subscribe"
1987 sctp_protocol_select="network"
1988 srtp_protocol_select="rtp_protocol"
1989 tcp_protocol_select="network"
1990 tls_protocol_deps_any="openssl gnutls"
1991 tls_protocol_select="tcp_protocol"
1992 udp_protocol_select="network"
1993 unix_protocol_deps="sys_un_h"
1994 unix_protocol_select="network"
1997 blackframe_filter_deps="gpl"
1998 boxblur_filter_deps="gpl"
1999 cropdetect_filter_deps="gpl"
2000 delogo_filter_deps="gpl"
2001 drawtext_filter_deps="libfreetype"
2002 frei0r_filter_deps="frei0r dlopen strtok_r"
2003 frei0r_filter_extralibs='$ldl'
2004 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2005 frei0r_src_filter_extralibs='$ldl'
2006 hqdn3d_filter_deps="gpl"
2007 interlace_filter_deps="gpl"
2008 resample_filter_deps="avresample"
2009 ocv_filter_deps="libopencv"
2010 scale_filter_deps="swscale"
2011 yadif_filter_deps="gpl"
2014 output_example_deps="avcodec avformat avutil swscale"
2015 transcode_aac_example_deps="avcodec avformat avresample"
2018 avcodec_deps="avutil"
2019 avdevice_deps="avutil avcodec avformat"
2020 avfilter_deps="avutil"
2021 avformat_deps="avutil avcodec"
2022 avresample_deps="avutil"
2023 swscale_deps="avutil"
2026 avconv_deps="avcodec avfilter avformat avresample swscale"
2027 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2028 fps_filter null_filter resample_filter scale_filter
2029 setpts_filter trim_filter"
2030 avplay_deps="avcodec avformat avresample swscale sdl"
2031 avplay_select="rdft"
2032 avprobe_deps="avcodec avformat"
2033 avserver_deps="avformat fork !shared"
2034 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2035 avserver_extralibs='$ldl'
2039 texi2html_deps="doc"
2041 # default parameters
2043 logfile="config.log"
2045 # installation paths
2046 prefix_default="/usr/local"
2047 bindir_default='${prefix}/bin'
2048 datadir_default='${prefix}/share/avconv'
2049 docdir_default='${prefix}/share/doc/libav'
2050 incdir_default='${prefix}/include'
2051 libdir_default='${prefix}/lib'
2052 mandir_default='${prefix}/share/man'
2053 shlibdir_default="$libdir_default"
2058 host_cc_default="gcc"
2063 pkg_config_default=pkg-config
2071 arch_default=$(uname -m)
2075 target_os_default=$(tolower $(uname -s))
2076 host_os=$target_os_default
2078 # configurable options
2079 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2084 enable optimizations
2085 enable safe_bitstream_reader
2087 enable swscale_alpha
2089 # By default, enable only those hwaccels that have no external dependencies.
2093 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2096 FULLNAME='$(NAME)$(BUILDSUF)'
2097 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2100 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2101 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2102 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2103 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2104 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2105 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2125 host_cppflags='-D_ISOC99_SOURCE'
2127 host_cflags_filter=echo
2128 host_ldflags_filter=echo
2130 target_path='$(CURDIR)'
2132 # since the object filename is not given with the -MM flag, the compiler
2133 # is only able to print the basename, and we must add the path ourselves
2134 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2138 if test -f configure; then
2141 source_path=$(cd $(dirname "$0"); pwd)
2142 echo "$source_path" | grep -q '[[:blank:]]' &&
2143 die "Out of tree builds are impossible with whitespace in source path."
2144 test -e "$source_path/config.h" &&
2145 die "Out of tree builds are impossible with config.h in source dir."
2152 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2158 file=$source_path/$3
2159 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2162 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2163 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2164 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2165 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2166 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2167 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2168 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2169 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2170 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2171 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2172 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2188 for n in $COMPONENT_LIST; do
2189 v=$(toupper ${n%s})_LIST
2191 eval ${n}_if_any="\$$v"
2194 enable $ARCH_EXT_LIST
2197 echo "Unknown option \"$1\"."
2198 echo "See $0 --help for available options."
2203 cat | tr ' ' '\n' | sort | pr -r -3 -t
2209 echo $* | sed s/$suffix//g | print_3_columns
2221 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2222 echo "prob ${prob:-0.5}"
2230 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2231 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2241 add_extralibs $optval
2244 disable $INDEV_LIST $OUTDEV_LIST
2247 debuglevel="$optval"
2250 disable $PROGRAM_LIST
2252 --disable-everything)
2253 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2256 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2257 disable $LIBRARY_LIST $PROGRAM_LIST doc
2259 --enable-random|--disable-random)
2260 action=${opt%%-random}
2261 do_random ${action#--} $COMPONENT_LIST
2263 --enable-random=*|--disable-random=*)
2264 action=${opt%%-random=*}
2265 do_random ${action#--} $optval
2267 --enable-*=*|--disable-*=*)
2268 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2269 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2270 eval list=\$$(toupper $thing)_LIST
2271 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2272 $action $(filter "$name" $list)
2274 --enable-?*|--disable-?*)
2275 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2276 if is_in $option $COMPONENT_LIST; then
2277 test $action = disable && action=unset
2278 eval $action \$$(toupper ${option%s})_LIST
2279 elif is_in $option $CMDLINE_SELECT; then
2286 NAME="${opt#--list-}"
2287 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2289 eval show_list $NAME \$$(toupper $NAME)_LIST
2291 --help|-h) show_help
2294 optname="${opt%%=*}"
2295 optname="${optname#--}"
2296 optname=$(echo "$optname" | sed 's/-/_/g')
2297 if is_in $optname $CMDLINE_SET; then
2298 eval $optname='$optval'
2299 elif is_in $optname $CMDLINE_APPEND; then
2300 append $optname "$optval"
2308 disabled logging && logfile=/dev/null
2310 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2313 test -n "$cross_prefix" && enable cross_compile
2315 if enabled cross_compile; then
2316 test -n "$arch" && test -n "$target_os" ||
2317 die "Must specify target arch and OS when cross-compiling"
2320 ar_default="${cross_prefix}${ar_default}"
2321 cc_default="${cross_prefix}${cc_default}"
2322 nm_default="${cross_prefix}${nm_default}"
2323 pkg_config_default="${cross_prefix}${pkg_config_default}"
2324 ranlib="${cross_prefix}${ranlib}"
2325 strip="${cross_prefix}${strip}"
2327 sysinclude_default="${sysroot}/usr/include"
2329 case "$toolchain" in
2332 add_cflags -fsanitize=address
2333 add_ldflags -fsanitize=address
2337 add_cflags -fsanitize=thread -pie
2338 add_ldflags -fsanitize=thread -pie
2342 add_cflags -fsanitize=address
2343 add_ldflags -fsanitize=address
2347 add_cflags -fsanitize=thread -pie -fPIC
2348 add_ldflags -fsanitize=thread -pie -fPIC
2351 target_exec_default="valgrind"
2352 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2355 target_exec_default="valgrind"
2356 target_exec_args="--track-origins=yes --leak-check=full"
2359 # Check whether the current MSVC version needs the C99 converter.
2360 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2361 # support enough of C99 to build libav. Default to the new
2362 # behaviour if the regexp was unable to match anything, since this
2363 # successfully parses the version number of existing supported
2364 # versions that require the converter (MSVC 2010 and 2012).
2365 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2366 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2369 cc_default="c99wrap cl"
2372 nm_default="dumpbin -symbols"
2374 target_os_default="win32"
2375 # Use a relative path for TMPDIR. This makes sure all the
2376 # ffconf temp files are written with a relative path, avoiding
2377 # issues with msys/win32 path conversion for MSVC parameters
2378 # such as -Fo<file> or -out:<file>.
2384 nm_default="dumpbin -symbols"
2386 target_os_default="win32"
2390 add_cflags -fprofile-arcs -ftest-coverage
2391 add_ldflags -fprofile-arcs -ftest-coverage
2394 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2395 add_ldflags -Wl,-z,relro -Wl,-z,now
2398 die "Unknown toolchain $toolchain"
2402 set_default arch cc pkg_config sysinclude target_exec target_os
2403 enabled cross_compile || host_cc_default=$cc
2406 if ! $pkg_config --version >/dev/null 2>&1; then
2407 warn "$pkg_config not found, library detection may fail."
2413 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2417 EXESUF=$(exesuf $target_os)
2418 HOSTEXESUF=$(exesuf $host_os)
2420 # set temporary file name
2421 : ${TMPDIR:=$TEMPDIR}
2425 if ! check_cmd mktemp -u XXXXXX; then
2426 # simple replacement for missing mktemp
2427 # NOT SAFE FOR GENERAL USE
2429 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2434 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2435 (set -C; exec > $tmp) 2>/dev/null ||
2436 die "Unable to create temporary file in $TMPDIR."
2437 append TMPFILES $tmp
2441 trap 'rm -f -- $TMPFILES' EXIT
2445 tmpfile TMPE $EXESUF
2456 # make sure we can execute files in $TMPDIR
2457 cat > $TMPSH 2>> $logfile <<EOF
2460 chmod +x $TMPSH >> $logfile 2>&1
2461 if ! $TMPSH >> $logfile 2>&1; then
2463 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2464 variable to another directory and make sure that it is not mounted noexec.
2466 die "Sanity test failed."
2472 -std=c99) echo -c99 ;;
2473 -mcpu=*) echo -arch ${flag#*=} ;;
2474 -mieee) echo -ieee ;;
2475 -O*|-fast) echo $flag ;;
2476 -fno-math-errno) echo -assume nomath_errno ;;
2478 -Wall) echo -msg_enable level2 ;;
2479 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2480 -Wl,*) echo $flag ;;
2490 -Wno-switch) echo -Wno-switch-enum ;;
2491 -Wno-format-zero-length) ;;
2492 -Wdisabled-optimization) ;;
2493 -Wno-pointer-sign) echo -Wno-other ;;
2499 msvc_common_flags(){
2502 # In addition to specifying certain flags under the compiler
2503 # specific filters, they must be specified here as well or else the
2504 # generic catch all at the bottom will print the original flag.
2508 -fomit-frame-pointer) ;;
2512 -fno-signed-zeros) ;;
2516 -lz) echo zlib.lib ;;
2517 -lavifil32) echo vfw32.lib ;;
2518 -lavicap32) echo vfw32.lib user32.lib ;;
2519 -l*) echo ${flag#-l}.lib ;;
2526 msvc_common_flags "$@"
2529 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2530 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2531 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2538 msvc_common_flags "$@"
2541 # Despite what Intel's documentation says -Wall, which is supported
2542 # on Windows, does enable remarks so disable them here.
2543 -Wall) echo $flag -Qdiag-disable:remark ;;
2544 -std=c99) echo -Qstd=c99 ;;
2552 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2553 -fomit-frame-pointer) echo -Mnoframe ;;
2564 case "${flag#*=}" in
2565 native) echo -xtarget=native ;;
2566 v9|niagara) echo -xarch=sparc ;;
2567 ultrasparc) echo -xarch=sparcvis ;;
2568 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2569 i586|pentium) echo -xchip=pentium ;;
2570 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2571 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2572 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2573 pentium4*) echo -xtarget=pentium4 ;;
2574 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2575 *-sse3) echo -xarch=sse3 ;;
2576 core2) echo -xarch=ssse3 -xchip=core2 ;;
2577 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2578 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2579 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2580 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2581 k8|opteron|athlon64|athlon-fx)
2582 echo -xarch=sse2a ;;
2583 athlon*) echo -xarch=pentium_proa ;;
2586 -std=c99) echo -xc99 ;;
2587 -fomit-frame-pointer) echo -xregs=frameptr ;;
2588 -fPIC) echo -KPIC -xcode=pic32 ;;
2589 -W*,*) echo $flag ;;
2590 -f*-*|-W*|-mimpure-text) ;;
2601 case "${flag#*=}" in
2602 armv7-a|cortex-a*) echo -mv=7a8 ;;
2603 armv7-r|cortex-r*) echo -mv=7r4 ;;
2604 armv7-m|cortex-m*) echo -mv=7m3 ;;
2605 armv6*|arm11*) echo -mv=6 ;;
2606 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2608 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2611 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2612 -mfpu=vfp) echo --float_support=vfpv2 ;;
2613 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2614 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2615 -msoft-float) echo --float_support=vfplib ;;
2616 -O[0-3]|-mf=*) echo $flag ;;
2618 -pds=*) echo $flag ;;
2619 -D*|-I*) echo $flag ;;
2620 --gcc|--abi=*) echo $flag ;;
2630 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2631 unset _ld_o _ldflags _ld_lib _ld_path
2632 unset _depflags _DEPCMD _DEPFLAGS
2635 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2637 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2638 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2639 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2642 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2644 gcc_version=$($_cc --version | head -n1)
2645 gcc_basever=$($_cc -dumpversion)
2646 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2647 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2648 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2649 if ! $_cc -dumpversion | grep -q '^2\.'; then
2650 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2654 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2656 _ident=$($_cc --version | head -n1)
2661 elif $_cc -v 2>&1 | grep -q xlc; then
2663 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2665 _cflags_size='-O5 -qcompact'
2666 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2668 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2670 _cflags_speed='-fast'
2672 _flags_filter=ccc_flags
2673 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2674 test -d "$sysroot" || die "No valid sysroot specified."
2676 _ident=$($_cc --vsn | head -n1)
2677 armcc_conf="$PWD/armcc.conf"
2678 $_cc --arm_linux_configure \
2679 --arm_linux_config_file="$armcc_conf" \
2680 --configure_sysroot="$sysroot" \
2681 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2682 die "Error creating armcc configuration file."
2683 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2684 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2685 as_default="${cross_prefix}gcc"
2689 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2691 _ident=$($_cc -version | head -n1 | tr -s ' ')
2692 _flags='--gcc --abi=eabi -me'
2695 _depflags='-ppa -ppd=$(@:.o=.d)'
2696 _cflags_speed='-O3 -mf=5'
2697 _cflags_size='-O3 -mf=2'
2698 _flags_filter=tms470_flags
2699 elif $_cc -v 2>&1 | grep -q clang; then
2701 _ident=$($_cc --version | head -n1)
2705 elif $_cc -V 2>&1 | grep -q Sun; then
2707 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2708 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2709 _DEPFLAGS='-xM1 -xc99'
2712 _cflags_size='-O5 -xspace'
2713 _flags_filter=suncc_flags
2714 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2716 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2717 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2720 _flags_filter='filter_out -Wdisabled-optimization'
2721 elif $_cc -v 2>&1 | grep -q Open64; then
2723 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2724 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2727 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2728 elif $_cc -V 2>&1 | grep -q Portland; then
2730 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2731 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2732 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2733 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2735 _flags_filter=pgi_flags
2736 elif $_cc 2>&1 | grep -q Microsoft; then
2738 _ident=$($cc 2>&1 | head -n1)
2739 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2740 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2743 if $_cc 2>&1 | grep -q Linker; then
2750 _flags_filter=msvc_flags
2752 _ld_path='-libpath:'
2754 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2755 if [ $pfx = hostcc ]; then
2756 append _cflags -Dsnprintf=_snprintf
2758 elif $_cc 2>&1 | grep -q Intel; then
2760 _ident=$($cc 2>&1 | head -n1)
2761 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2762 # Not only is O3 broken on 13.x+ but it is slower on all previous
2763 # versions (tested) as well.
2765 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2766 if $_cc 2>&1 | grep -q Linker; then
2773 _flags_filter=icl_flags
2775 _ld_path='-libpath:'
2776 # -Qdiag-error to make icl error when seeing certain unknown arguments
2777 _flags='-nologo -Qdiag-error:4044,10157'
2778 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2779 # with MSVC which enables it by default.
2780 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2781 if [ $pfx = hostcc ]; then
2782 append _cflags -Dsnprintf=_snprintf
2784 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2786 _ident=$($_cc --version | head -n1)
2790 _flags_filter=cparser_flags
2793 eval ${pfx}_type=\$_type
2794 eval ${pfx}_ident=\$_ident
2798 eval ${1}_C=\${_cc_c-\${${1}_C}}
2799 eval ${1}_E=\${_cc_e-\${${1}_E}}
2800 eval ${1}_O=\${_cc_o-\${${1}_O}}
2802 if [ -n "$_depflags" ]; then
2803 eval ${1}_DEPFLAGS=\$_depflags
2805 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2806 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2807 eval DEP${1}FLAGS=\$_flags
2812 cflags_filter=$_flags_filter
2813 cflags_speed=$_cflags_speed
2814 cflags_size=$_cflags_size
2815 cflags_noopt=$_cflags_noopt
2816 add_cflags $_flags $_cflags
2817 cc_ldflags=$_ldflags
2820 probe_cc hostcc "$host_cc"
2821 host_cflags_filter=$_flags_filter
2822 add_host_cflags $_flags $_cflags
2825 test -n "$cc_type" && enable $cc_type ||
2826 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2828 : ${as_default:=$cc}
2829 : ${dep_cc_default:=$cc}
2830 : ${ld_default:=$cc}
2831 : ${host_ld_default:=$host_cc}
2832 set_default ar as dep_cc ld host_ld
2835 asflags_filter=$_flags_filter
2836 add_asflags $_flags $_cflags
2840 ldflags_filter=$_flags_filter
2841 add_ldflags $_flags $_ldflags
2842 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2844 LD_LIB=${_ld_lib-$LD_LIB}
2845 LD_PATH=${_ld_path-$LD_PATH}
2847 probe_cc hostld "$host_ld"
2848 host_ldflags_filter=$_flags_filter
2849 add_host_ldflags $_flags $_ldflags
2850 HOSTLD_O=${_ld_o-$HOSTLD_O}
2852 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2853 probe_cc depcc "$dep_cc"
2854 CCDEP=${_DEPCMD:-$DEPCMD}
2855 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2859 if $ar 2>&1 | grep -q Microsoft; then
2862 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2865 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2866 arflags='-Xany -r -c'
2873 add_cflags $extra_cflags
2874 add_asflags $extra_cflags
2876 if test -n "$sysroot"; then
2879 add_cppflags --sysroot="$sysroot"
2880 add_ldflags --sysroot="$sysroot"
2883 add_cppflags -I"$sysinclude"
2884 add_ldflags --sysroot="$sysroot"
2889 if test "$cpu" = host; then
2890 enabled cross_compile &&
2891 die "--cpu=host makes no sense when cross-compiling."
2896 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2898 s/.*$1=\\([^ ]*\\).*/\\1/
2903 cpu=$(check_native -march || check_native -mcpu)
2907 test "${cpu:-host}" = host &&
2908 die "--cpu=host not supported with compiler $cc"
2911 # Deal with common $arch aliases
2925 "Power Macintosh"|ppc*|powerpc*)
2940 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2945 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2948 # Add processor-specific flags
2949 if enabled aarch64; then
2953 cpuflags="-march=$cpu"
2956 cpuflags="-mcpu=$cpu"
2960 elif enabled alpha; then
2962 cpuflags="-mcpu=$cpu"
2964 elif enabled arm; then
2967 check_cpp_condition stddef.h \
2968 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2973 if check_arm_arch 4; then echo armv4;
2974 elif check_arm_arch 4T; then echo armv4t;
2975 elif check_arm_arch 5; then echo armv5;
2976 elif check_arm_arch 5E; then echo armv5e;
2977 elif check_arm_arch 5T; then echo armv5t;
2978 elif check_arm_arch 5TE; then echo armv5te;
2979 elif check_arm_arch 5TEJ; then echo armv5te;
2980 elif check_arm_arch 6; then echo armv6;
2981 elif check_arm_arch 6J; then echo armv6j;
2982 elif check_arm_arch 6K; then echo armv6k;
2983 elif check_arm_arch 6Z; then echo armv6z;
2984 elif check_arm_arch 6ZK; then echo armv6zk;
2985 elif check_arm_arch 6T2; then echo armv6t2;
2986 elif check_arm_arch 7; then echo armv7;
2987 elif check_arm_arch 7A 7_A; then echo armv7-a;
2988 elif check_arm_arch 7R 7_R; then echo armv7-r;
2989 elif check_arm_arch 7M 7_M; then echo armv7-m;
2990 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2991 elif check_arm_arch 8A 8_A; then echo armv8-a;
2995 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2999 cpuflags="-march=$cpu"
3000 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3003 cpuflags="-mcpu=$cpu"
3005 cortex-a*) subarch=armv7a ;;
3006 cortex-r*) subarch=armv7r ;;
3007 cortex-m*) enable thumb; subarch=armv7m ;;
3008 arm11*) subarch=armv6 ;;
3009 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3010 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3011 *) subarch=$(probe_arm_arch) ;;
3017 armv5t*) enable fast_clz ;;
3018 armv[6-8]*) enable fast_clz fast_unaligned ;;
3021 elif enabled avr32; then
3026 cpuflags="-mpart=$cpu"
3030 cpuflags="-march=$cpu"
3034 cpuflags="-mcpu=$cpu"
3038 cpuflags="-march=$cpu"
3042 elif enabled bfin; then
3044 cpuflags="-mcpu=$cpu"
3046 elif enabled mips; then
3048 cpuflags="-march=$cpu"
3050 elif enabled ppc; then
3052 case $(tolower $cpu) in
3053 601|ppc601|powerpc601)
3054 cpuflags="-mcpu=601"
3057 603*|ppc603*|powerpc603*)
3058 cpuflags="-mcpu=603"
3061 604*|ppc604*|powerpc604*)
3062 cpuflags="-mcpu=604"
3065 g3|75*|ppc75*|powerpc75*)
3066 cpuflags="-mcpu=750"
3069 g4|745*|ppc745*|powerpc745*)
3070 cpuflags="-mcpu=7450"
3072 74*|ppc74*|powerpc74*)
3073 cpuflags="-mcpu=7400"
3075 g5|970|ppc970|powerpc970)
3076 cpuflags="-mcpu=970"
3079 cpuflags="-mcpu=$cpu"
3082 cpuflags="-mcpu=cell"
3086 cpuflags="-mcpu=e500mc"
3090 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3094 cpuflags="-mcpu=8540 -mhard-float"
3099 elif enabled sparc; then
3102 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3103 cpuflags="-mcpu=$cpu"
3106 ultrasparc*|niagara[234])
3107 cpuflags="-mcpu=$cpu"
3111 elif enabled x86; then
3115 cpuflags="-march=$cpu"
3118 # targets that do NOT support nopl and conditional mov (cmov)
3119 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3120 cpuflags="-march=$cpu"
3123 # targets that do support nopl and conditional mov (cmov)
3124 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*)
3125 cpuflags="-march=$cpu"
3129 # targets that do support conditional mov but on which it's slow
3130 pentium4|pentium4m|prescott|nocona)
3131 cpuflags="-march=$cpu"
3139 if [ "$cpu" != generic ]; then
3140 add_cflags $cpuflags
3141 add_asflags $cpuflags
3144 # compiler sanity check
3146 int main(void){ return 0; }
3148 if test "$?" != 0; then
3149 echo "$cc is unable to create an executable file."
3150 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3151 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3152 echo "Only do this if you know what cross compiling means."
3154 die "C compiler test failed."
3157 add_cppflags -D_ISOC99_SOURCE
3158 check_cflags -std=c99
3159 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3162 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3166 check_host_cflags -std=c99
3167 check_host_cflags -Wall
3173 check_code cc "" "int test[2*($expr) - 1]" &&
3174 subarch=$arch64 || subarch=$arch32
3182 check_64bit mips mips64 '_MIPS_SIM > 1'
3186 check_64bit parisc parisc64 'sizeof(void *) > 4'
3190 check_64bit ppc ppc64 'sizeof(void *) > 4'
3194 check_64bit sparc sparc64 'sizeof(void *) > 4'
3198 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3199 if test "$subarch" = "x86_64"; then
3206 enabled spic && enable_weak pic
3212 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3213 enabled shared && add_ldflags -Wl,-brtl
3216 prefix_default="/boot/common"
3217 network_extralibs="-lnetwork"
3221 SHFLAGS='-shared -Wl,-h,$$(@F)'
3222 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3223 network_extralibs="-lsocket -lnsl"
3224 # When using suncc to build, the Solaris linker will mark
3225 # an executable with each instruction set encountered by
3226 # the Solaris assembler. As our libraries contain their own
3227 # guards for processor-specific code, instead suppress
3228 # generation of the HWCAPS ELF section on Solaris x86 only.
3229 enabled_all suncc x86 &&
3230 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3231 add_ldflags -Wl,-M,mapfile
3232 nm_default='nm -P -g'
3236 oss_indev_extralibs="-lossaudio"
3237 oss_outdev_extralibs="-lossaudio"
3242 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3244 oss_indev_extralibs="-lossaudio"
3245 oss_outdev_extralibs="-lossaudio"
3253 add_extralibs -lpoll -lgnugetopt
3256 gas="gas-preprocessor.pl $cc"
3257 enabled ppc && add_asflags -force_cpusubtype_ALL
3258 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3259 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3260 add_ldflags -Wl,-dynamic,-search_paths_first
3262 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3263 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3265 enabled x86_64 && objformat="macho64"
3266 enabled_any pic shared ||
3267 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3270 if test $target_os = "mingw32ce"; then
3276 if enabled x86_64; then
3277 LIBTARGET="i386:x86-64"
3278 elif enabled arm; then
3281 check_ldflags -Wl,--nxcompat
3282 check_ldflags -Wl,--dynamicbase
3283 shlibdir_default="$bindir_default"
3286 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3287 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3288 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3289 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3291 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3292 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3293 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3295 dlltool="${cross_prefix}dlltool"
3301 if enabled shared; then
3302 # Link to the import library instead of the normal static library
3305 # Cannot build both shared and static libs with MSVC or icl.
3308 shlibdir_default="$bindir_default"
3311 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3312 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3313 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3314 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3316 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3317 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3318 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3325 shlibdir_default="$bindir_default"
3328 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3329 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3330 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3332 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3333 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3337 *-dos|freedos|opendos)
3338 network_extralibs="-lsocket"
3341 add_cppflags -U__STRICT_ANSI__
3348 ranlib="echo ignoring ranlib"
3353 add_cppflags -D_GNU_SOURCE
3354 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3355 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3359 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3360 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3361 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3362 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3363 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3364 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3365 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3366 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3367 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3368 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3369 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3373 add_cppflags -D_BSD_SOURCE
3378 add_cppflags -D_QNX_SOURCE
3379 network_extralibs="-lsocket"
3384 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3385 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3386 add_ldflags -Wl,--target1-abs,--no-undefined \
3387 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3388 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3389 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3390 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3391 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3394 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3399 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3400 -D_REENTRANT_SOURCE \
3401 -D_RESEARCH_SOURCE \
3404 add_compat strtod.o strtod=avpriv_strtod
3405 network_extralibs='-lbsd'
3406 exeobjs=compat/plan9/main.o
3413 die "Unknown OS '$target_os'."
3417 # determine libc flavour
3422 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3423 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3424 eval ${pfx}libc_type=uclibc
3425 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3426 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3427 eval ${pfx}libc_type=glibc
3428 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3429 # MinGW headers can be installed on Cygwin, so check for newlib first.
3430 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3431 eval ${pfx}libc_type=newlib
3432 add_${pfx}cppflags -U__STRICT_ANSI__
3433 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3434 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3435 eval ${pfx}libc_type=mingw64
3436 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3437 eval test \$${pfx_no_}cc_type = "gcc" &&
3438 add_${pfx}cppflags -D__printf__=__gnu_printf__
3439 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3440 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3441 eval ${pfx}libc_type=mingw32
3442 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3443 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3444 die "ERROR: MinGW32 runtime version must be >= 3.15."
3445 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3446 eval test \$${pfx_no_}cc_type = "gcc" &&
3447 add_${pfx}cppflags -D__printf__=__gnu_printf__
3448 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3449 eval ${pfx}libc_type=msvcrt
3450 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3451 # 0x601 by default unless something else is set by the user.
3452 # This can easily lead to us detecting functions only present
3453 # in such new versions and producing binaries requiring windows 7.0.
3454 # Therefore explicitly set the default to XP unless the user has
3455 # set something else on the command line.
3456 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3457 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3458 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3459 eval ${pfx}libc_type=klibc
3460 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3461 eval ${pfx}libc_type=bionic
3462 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3463 eval ${pfx}libc_type=solaris
3464 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3469 test -n "$libc_type" && enable libc_$libc_type
3471 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3475 add_compat strtod.o strtod=avpriv_strtod
3478 add_compat strtod.o strtod=avpriv_strtod
3479 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3480 _snprintf=avpriv_snprintf \
3481 vsnprintf=avpriv_vsnprintf
3485 # hacks for compiler/libc/os combinations
3487 if enabled_all tms470 libc_glibc; then
3488 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3489 add_cppflags -D__USER_LABEL_PREFIX__=
3490 add_cppflags -D__builtin_memset=memset
3491 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3492 add_cflags -pds=48 # incompatible redefinition of macro
3495 if enabled_all ccc libc_glibc; then
3496 add_ldflags -Wl,-z,now # calls to libots crash without this
3500 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3503 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3505 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3507 set_default $PATHS_LIST
3510 # we need to build at least one lib type
3511 if ! enabled_any static shared; then
3513 At least one library type must be built.
3514 Specify --enable-static to build the static libraries or --enable-shared to
3515 build the shared libraries as well. To only build the shared libraries specify
3516 --disable-static in addition to --enable-shared.
3521 die_license_disabled() {
3522 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3525 die_license_disabled gpl libcdio
3526 die_license_disabled gpl libx264
3527 die_license_disabled gpl libxavs
3528 die_license_disabled gpl libxvid
3529 die_license_disabled gpl x11grab
3531 die_license_disabled nonfree libfaac
3532 die_license_disabled nonfree libfdk_aac
3533 die_license_disabled nonfree openssl
3535 die_license_disabled version3 libopencore_amrnb
3536 die_license_disabled version3 libopencore_amrwb
3537 die_license_disabled version3 libvo_aacenc
3538 die_license_disabled version3 libvo_amrwbenc
3540 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3542 disabled optimizations || check_cflags -fomit-frame-pointer
3545 disabled pic && return
3548 case "$target_os" in
3558 enabled pic && enable_weak_pic
3560 check_cc <<EOF || die "Symbol mangling check failed."
3563 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3564 extern_prefix=${sym%%ff_extern*}
3566 check_cc <<EOF && enable_weak inline_asm
3567 void foo(void) { __asm__ volatile ("" ::); }
3571 for restrict_keyword in restrict __restrict__ __restrict; do
3572 check_cc <<EOF && _restrict=$restrict_keyword && break
3573 void foo(char * $restrict_keyword p);
3577 check_cc <<EOF && enable pragma_deprecated
3578 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3581 check_cc <<EOF && enable attribute_packed
3582 struct { int x; } __attribute__((packed)) x;
3585 check_cc <<EOF && enable attribute_may_alias
3586 union { int x; } __attribute__((may_alias)) x;
3589 check_cc <<EOF || die "endian test failed"
3590 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3592 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3594 check_inline_asm inline_asm_labels '"1:\n"'
3596 if enabled alpha; then
3600 elif enabled arm; then
3602 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3603 enabled thumb && check_cflags -mthumb || check_cflags -marm
3606 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3608 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3609 case "${cross_prefix:-$cc}" in
3610 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3611 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3612 __asm__ (".eabi_attribute 28, 1");
3613 int main(void) { return 0; }
3616 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3619 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3620 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3621 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3622 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3623 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3624 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3626 [ $target_os = linux ] ||
3627 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3630 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3631 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3633 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3635 elif enabled mips; then
3637 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3639 elif enabled parisc; then
3641 if enabled gcc; then
3642 case $($cc -dumpversion) in
3643 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3647 elif enabled ppc; then
3649 enable local_aligned_8 local_aligned_16
3651 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3652 check_inline_asm ibm_asm '"add 0, 0, 0"'
3653 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3654 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3656 # AltiVec flags: The FSF version of GCC differs from the Apple version
3657 if enabled altivec; then
3659 check_cflags -maltivec -mabi=altivec &&
3660 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3661 check_cflags -faltivec
3663 # check if our compiler supports Motorola AltiVec C API
3664 check_cc <<EOF || disable altivec
3667 vector signed int v1 = (vector signed int) { 0 };
3668 vector signed int v2 = (vector signed int) { 1 };
3669 v1 = vec_add(v1, v2);
3674 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3677 elif enabled sparc; then
3679 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3681 elif enabled x86; then
3683 check_builtin rdtsc intrin.h "__rdtsc()"
3684 check_builtin mm_empty mmintrin.h "_mm_empty()"
3686 enable local_aligned_8 local_aligned_16
3688 # check whether EBP is available on x86
3689 # As 'i' is stored on the stack, this program will crash
3690 # if the base pointer is used to access it because the
3691 # base pointer is cleared in the inline assembly code.
3692 check_exec_crash <<EOF && enable ebp_available
3694 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3698 # check whether EBX is available on x86
3699 check_inline_asm ebx_available '""::"b"(0)' &&
3700 check_inline_asm ebx_available '"":::"%ebx"'
3702 # check whether xmm clobbers are supported
3703 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3705 # check whether binutils is new enough to compile SSSE3/MMXEXT
3706 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3707 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3709 if ! disabled_any asm mmx yasm; then
3710 if check_cmd $yasmexe --version; then
3711 enabled x86_64 && yasm_extra="-m amd64"
3712 yasm_debug="-g dwarf2"
3713 elif check_cmd nasm -v; then
3715 yasm_debug="-g -F dwarf"
3716 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3719 YASMFLAGS="-f $objformat $yasm_extra"
3720 enabled pic && append YASMFLAGS "-DPIC"
3721 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3722 case "$objformat" in
3723 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3726 check_yasm "movbe ecx, [5]" && enable yasm ||
3727 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3728 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3729 check_yasm "CPU amdnop" && enable cpunop
3733 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3740 if enabled asm; then
3742 check_as <<EOF && enable gnu_as || \
3743 $nogas "GNU assembler not found, install gas-preprocessor"
3751 check_ldflags -Wl,--as-needed
3753 if check_func dlopen; then
3755 elif check_func dlopen -ldl; then
3759 if ! disabled network; then
3760 check_type "sys/types.h sys/socket.h" socklen_t
3761 check_type netdb.h "struct addrinfo"
3762 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3763 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3764 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3765 check_type netinet/in.h "struct sockaddr_in6"
3766 check_type poll.h "struct pollfd"
3767 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3768 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3769 check_type netinet/sctp.h "struct sctp_event_subscribe"
3770 check_func getaddrinfo $network_extralibs
3771 check_func getservbyport $network_extralibs
3772 # Prefer arpa/inet.h over winsock2
3773 if check_header arpa/inet.h ; then
3774 check_func closesocket
3775 elif check_header winsock2.h ; then
3776 check_func_headers winsock2.h closesocket -lws2 &&
3777 network_extralibs="-lws2" ||
3778 { check_func_headers winsock2.h closesocket -lws2_32 &&
3779 network_extralibs="-lws2_32"; }
3780 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3781 check_type ws2tcpip.h socklen_t
3782 check_type ws2tcpip.h "struct addrinfo"
3783 check_type ws2tcpip.h "struct group_source_req"
3784 check_type ws2tcpip.h "struct ip_mreq_source"
3785 check_type ws2tcpip.h "struct ipv6_mreq"
3786 check_type winsock2.h "struct pollfd"
3787 check_type ws2tcpip.h "struct sockaddr_in6"
3788 check_type ws2tcpip.h "struct sockaddr_storage"
3789 check_struct winsock2.h "struct sockaddr" sa_len
3795 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3796 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3800 check_func_headers stdlib.h getenv
3801 check_func gethrtime
3803 check_func getrusage
3804 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3805 check_func gettimeofday
3806 check_func inet_aton $network_extralibs
3808 check_func localtime_r
3809 check_func ${malloc_prefix}memalign && enable memalign
3813 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3814 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3815 check_func setrlimit
3816 check_func strerror_r
3819 check_func sched_getaffinity
3820 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3821 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3822 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3823 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3827 check_func_headers io.h setmode
3828 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3829 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3830 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3831 check_func_headers windows.h GetProcessAffinityMask
3832 check_func_headers windows.h GetProcessTimes
3833 check_func_headers windows.h GetSystemTimeAsFileTime
3834 check_func_headers windows.h MapViewOfFile
3835 check_func_headers windows.h SetConsoleTextAttribute
3836 check_func_headers windows.h Sleep
3837 check_func_headers windows.h VirtualAlloc
3839 check_header direct.h
3840 check_header dlfcn.h
3842 check_header dxva2api.h
3844 check_header malloc.h
3846 check_header sys/mman.h
3847 check_header sys/param.h
3848 check_header sys/resource.h
3849 check_header sys/select.h
3850 check_header sys/time.h
3851 check_header sys/un.h
3852 check_header unistd.h
3853 check_header vdpau/vdpau.h
3854 check_header vdpau/vdpau_x11.h
3855 check_header VideoDecodeAcceleration/VDADecoder.h
3856 check_header windows.h
3857 check_header X11/extensions/XvMClib.h
3859 if ! disabled w32threads && ! enabled pthreads; then
3860 check_func_headers "windows.h process.h" _beginthreadex &&
3861 enable w32threads || disable w32threads
3864 # check for some common methods of building with pthread support
3865 # do this before the optional library checks as some of them require pthreads
3866 if ! disabled pthreads && ! enabled w32threads; then
3868 if check_func pthread_join -pthread; then
3870 add_extralibs -pthread
3871 elif check_func pthread_join -pthreads; then
3872 add_cflags -pthreads
3873 add_extralibs -pthreads
3874 elif check_func pthread_join -lpthreadGC2; then
3875 add_extralibs -lpthreadGC2
3876 elif check_lib pthread.h pthread_join -lpthread; then
3878 elif ! check_func pthread_join; then
3883 for thread in $THREADS_LIST; do
3884 if enabled $thread; then
3885 test -n "$thread_type" &&
3886 die "ERROR: Only one thread type must be selected." ||
3887 thread_type="$thread"
3891 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3892 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3894 check_lib math.h sin -lm && LIBM="-lm"
3895 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3901 for func in $MATH_FUNCS; do
3902 eval check_mathfunc $func \${${func}_args:-1}
3905 # these are off by default, so fail if requested and not available
3906 enabled avisynth && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
3907 { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
3908 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
3909 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3910 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3911 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3912 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3913 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
3914 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3915 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3916 done || die "ERROR: libgsm not found"; }
3917 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3918 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3919 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3920 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3921 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3922 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3923 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3924 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3925 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3926 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3927 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3928 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3929 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3930 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3931 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3933 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3934 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3935 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3936 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3937 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3938 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3939 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
3940 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
3941 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3942 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3943 die "ERROR: libx264 version must be >= 0.118."; }
3944 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3945 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3946 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3947 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3948 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3949 die "ERROR: openssl not found"; }
3951 if enabled gnutls; then
3952 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3953 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3957 if enabled libdc1394; then
3958 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3959 enable libdc1394_2; } ||
3960 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3961 enable libdc1394_1; } ||
3962 die "ERROR: No version of libdc1394 found "
3965 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3966 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3967 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3971 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3972 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3974 check_header linux/fb.h
3975 check_header linux/videodev2.h
3976 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3978 check_header sys/videoio.h
3980 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3981 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3982 # w32api 3.12 had it defined wrong
3983 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3985 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3986 { check_header dev/bktr/ioctl_meteor.h &&
3987 check_header dev/bktr/ioctl_bt848.h; } ||
3988 { check_header machine/ioctl_meteor.h &&
3989 check_header machine/ioctl_bt848.h; } ||
3990 { check_header dev/video/meteor/ioctl_meteor.h &&
3991 check_header dev/video/bktr/ioctl_bt848.h; } ||
3992 check_header dev/ic/bt8xx.h
3994 check_header sndio.h
3995 check_header sys/soundcard.h
3996 check_header soundcard.h
3998 enabled_any alsa_indev alsa_outdev &&
3999 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4001 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4002 check_func jack_port_get_latency_range -ljack
4004 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4006 if enabled libcdio; then
4007 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4008 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4011 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4014 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4015 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4016 { enabled xlib || die "ERROR: Xlib not found"; }
4019 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4022 enabled vdpau && enabled xlib &&
4023 check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4026 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4028 # add some useful compiler flags if supported
4029 check_cflags -Wdeclaration-after-statement
4031 check_cflags -Wdisabled-optimization
4032 check_cflags -Wpointer-arith
4033 check_cflags -Wredundant-decls
4034 check_cflags -Wcast-qual
4035 check_cflags -Wwrite-strings
4036 check_cflags -Wtype-limits
4037 check_cflags -Wundef
4038 check_cflags -Wmissing-prototypes
4039 check_cflags -Wstrict-prototypes
4040 enabled extra_warnings && check_cflags -Winline
4042 check_disable_warning(){
4043 warning_flag=-W${1#-Wno-}
4044 test_cflags $warning_flag && add_cflags $1
4047 check_disable_warning -Wno-parentheses
4048 check_disable_warning -Wno-switch
4049 check_disable_warning -Wno-format-zero-length
4050 check_disable_warning -Wno-pointer-sign
4052 # add some linker flags
4053 check_ldflags -Wl,--warn-common
4054 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4055 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4057 # add some strip flags
4058 # -wN '..@*' is more selective than -x, but not available everywhere.
4059 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4061 enabled xmm_clobber_test &&
4062 check_ldflags -Wl,--wrap,avcodec_open2 \
4063 -Wl,--wrap,avcodec_decode_audio4 \
4064 -Wl,--wrap,avcodec_decode_video2 \
4065 -Wl,--wrap,avcodec_decode_subtitle2 \
4066 -Wl,--wrap,avcodec_encode_audio2 \
4067 -Wl,--wrap,avcodec_encode_video2 \
4068 -Wl,--wrap,avcodec_encode_subtitle \
4069 -Wl,--wrap,sws_scale ||
4070 disable xmm_clobber_test
4073 if test_ldflags -Wl,--version-script,$TMPV; then
4074 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4075 check_cc <<EOF && enable symver_asm_label
4076 void ff_foo(void) __asm__ ("av_foo@VERSION");
4077 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4079 check_cc <<EOF && enable symver_gnu_asm
4080 __asm__(".symver ff_foo,av_foo@VERSION");
4081 void ff_foo(void) {}
4085 if [ -z "$optflags" ]; then
4086 if enabled small; then
4087 optflags=$cflags_size
4088 elif enabled optimizations; then
4089 optflags=$cflags_speed
4091 optflags=$cflags_noopt
4097 enabled lto && check_ldflags "$@"
4101 if enabled lto; then
4102 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4104 check_ldflags -flto $cpuflags
4107 check_optflags $optflags
4108 check_optflags -fno-math-errno
4109 check_optflags -fno-signed-zeros
4111 if enabled icc; then
4112 # Just warnings, no remarks
4114 # -wd: Disable following warnings
4115 # 144, 167, 556: -Wno-pointer-sign
4116 # 1292: attribute "foo" ignored
4117 # 1419: external declaration in primary source file
4118 # 10006: ignoring unknown option -fno-signed-zeros
4119 # 10148: ignoring unknown option -Wno-parentheses
4120 # 10156: ignoring option '-W'; no argument required
4121 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4122 # 11030: Warning unknown option --as-needed
4123 # 10156: ignoring option '-export'; no argument required
4124 check_ldflags -wd10156,11030
4125 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4126 enable ebp_available
4127 if enabled x86_32; then
4128 icc_version=$($cc -dumpversion)
4129 test ${icc_version%%.*} -ge 11 &&
4130 check_cflags -falign-stack=maintain-16-byte ||
4131 disable aligned_stack
4133 elif enabled ccc; then
4134 # disable some annoying warnings
4135 add_cflags -msg_disable bitnotint
4136 add_cflags -msg_disable mixfuncvoid
4137 add_cflags -msg_disable nonstandcast
4138 add_cflags -msg_disable unsupieee
4139 elif enabled gcc; then
4140 check_optflags -fno-tree-vectorize
4141 check_cflags -Werror=implicit-function-declaration
4142 check_cflags -Werror=missing-prototypes
4143 check_cflags -Werror=return-type
4144 check_cflags -Werror=declaration-after-statement
4145 check_cflags -Werror=vla
4146 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4147 elif enabled llvm_gcc; then
4148 check_cflags -mllvm -stack-alignment=16
4149 elif enabled clang; then
4150 check_cflags -mllvm -stack-alignment=16
4151 check_cflags -Qunused-arguments
4152 check_cflags -Werror=implicit-function-declaration
4153 check_cflags -Werror=missing-prototypes
4154 check_cflags -Werror=return-type
4155 elif enabled cparser; then
4156 add_cflags -Wno-missing-variable-declarations
4157 add_cflags -Wno-empty-statement
4158 elif enabled armcc; then
4159 # 2523: use of inline assembler is deprecated
4160 add_cflags -W${armcc_opt},--diag_suppress=2523
4161 add_cflags -W${armcc_opt},--diag_suppress=1207
4162 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4163 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4164 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4165 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4166 elif enabled tms470; then
4167 add_cflags -pds=824 -pds=837
4169 elif enabled pathscale; then
4170 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4171 elif enabled_any msvc icl; then
4172 enabled x86_32 && disable aligned_stack
4173 enabled_all x86_32 debug && add_cflags -Oy-
4174 enabled debug && add_ldflags -debug
4175 enable pragma_deprecated
4176 if enabled icl; then
4177 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4178 # (correctly) on icl 13.x.
4179 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4180 add_cflags -Qansi-alias
4181 # icl will pass the inline asm tests but inline asm is currently
4182 # not supported (build will fail)
4189 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4192 add_cppflags -Dmain=plan9_main
4196 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4198 check_deps $CONFIG_LIST \
4203 ! enabled_any memalign posix_memalign aligned_malloc &&
4204 enabled_any $need_memalign && enable memalign_hack
4206 echo "install prefix $prefix"
4207 echo "source path $source_path"
4208 echo "C compiler $cc"
4209 echo "C library $libc_type"
4210 if test "$host_cc" != "$cc"; then
4211 echo "host C compiler $host_cc"
4212 echo "host C library $host_libc_type"
4214 echo "ARCH $arch ($cpu)"
4215 if test "$build_suffix" != ""; then
4216 echo "build suffix $build_suffix"
4218 if test "$extra_version" != ""; then
4219 echo "version string suffix $extra_version"
4221 echo "big-endian ${bigendian-no}"
4222 echo "runtime cpu detection ${runtime_cpudetect-no}"
4223 if enabled x86; then
4224 echo "${yasmexe} ${yasm-no}"
4225 echo "MMX enabled ${mmx-no}"
4226 echo "MMXEXT enabled ${mmxext-no}"
4227 echo "3DNow! enabled ${amd3dnow-no}"
4228 echo "3DNow! extended enabled ${amd3dnowext-no}"
4229 echo "SSE enabled ${sse-no}"
4230 echo "SSSE3 enabled ${ssse3-no}"
4231 echo "AVX enabled ${avx-no}"
4232 echo "FMA4 enabled ${fma4-no}"
4233 echo "i686 features enabled ${i686-no}"
4234 echo "CMOV is fast ${fast_cmov-no}"
4235 echo "EBX available ${ebx_available-no}"
4236 echo "EBP available ${ebp_available-no}"
4238 if enabled arm; then
4239 echo "ARMv5TE enabled ${armv5te-no}"
4240 echo "ARMv6 enabled ${armv6-no}"
4241 echo "ARMv6T2 enabled ${armv6t2-no}"
4242 echo "VFP enabled ${vfp-no}"
4243 echo "NEON enabled ${neon-no}"
4245 if enabled ppc; then
4246 echo "AltiVec enabled ${altivec-no}"
4247 echo "PPC 4xx optimizations ${ppc4xx-no}"
4248 echo "dcbzl available ${dcbzl-no}"
4250 if enabled sparc; then
4251 echo "VIS enabled ${vis-no}"
4253 echo "debug symbols ${debug-no}"
4254 echo "optimize for size ${small-no}"
4255 echo "optimizations ${optimizations-no}"
4256 echo "static ${static-no}"
4257 echo "shared ${shared-no}"
4258 echo "new filter support ${avfilter-no}"
4259 echo "network support ${network-no}"
4260 echo "threading support ${thread_type-no}"
4261 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4262 echo "SDL support ${sdl-no}"
4263 test -n "$random_seed" &&
4264 echo "random seed ${random_seed}"
4267 echo "External libraries:"
4268 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4271 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4272 echo "Enabled ${type}s:"
4273 eval list=\$$(toupper $type)_LIST
4274 print_enabled '_*' $list | print_3_columns
4278 license="LGPL version 2.1 or later"
4279 if enabled nonfree; then
4280 license="nonfree and unredistributable"
4281 elif enabled gplv3; then
4282 license="GPL version 3 or later"
4283 elif enabled lgplv3; then
4284 license="LGPL version 3 or later"
4285 elif enabled gpl; then
4286 license="GPL version 2 or later"
4289 echo "License: $license"
4291 echo "Creating config.mak and config.h..."
4293 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4295 config_files="$TMPH config.mak"
4297 cat > config.mak <<EOF
4298 # Automatically generated by configure - do not modify!
4299 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4301 LIBDIR=\$(DESTDIR)$libdir
4302 SHLIBDIR=\$(DESTDIR)$shlibdir
4303 INCDIR=\$(DESTDIR)$incdir
4304 BINDIR=\$(DESTDIR)$bindir
4305 DATADIR=\$(DESTDIR)$datadir
4306 DOCDIR=\$(DESTDIR)$docdir
4307 MANDIR=\$(DESTDIR)$mandir
4308 SRC_PATH=$source_path
4315 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4317 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4339 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4340 STRIPFLAGS=$STRIPFLAGS
4341 YASMFLAGS=$YASMFLAGS
4342 BUILDSUF=$build_suffix
4350 EXTRA_VERSION=$extra_version
4352 CCDEP_FLAGS=$CCDEP_FLAGS
4354 ASDEP_FLAGS=$ASDEP_FLAGS
4355 CC_DEPFLAGS=$CC_DEPFLAGS
4356 AS_DEPFLAGS=$AS_DEPFLAGS
4359 HOSTCFLAGS=$host_cflags
4360 HOSTCPPFLAGS=$host_cppflags
4361 HOSTEXESUF=$HOSTEXESUF
4362 HOSTLDFLAGS=$host_ldflags
4365 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4366 HOSTCCDEP=$HOSTCCDEP
4367 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4368 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4372 TARGET_EXEC=$target_exec $target_exec_args
4373 TARGET_PATH=$target_path
4374 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4375 LIBS-avplay=$sdl_libs
4376 CFLAGS-avplay=$sdl_cflags
4377 ZLIB=$($ldflags_filter -lz)
4378 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4379 EXTRALIBS=$extralibs
4380 COMPAT_OBJS=$compat_objs
4383 LIBTARGET=${LIBTARGET}
4384 SLIBNAME=${SLIBNAME}
4385 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4386 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4387 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4388 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4389 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4390 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4391 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4392 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4393 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4398 name=$(toupper $lcname)
4399 file=$source_path/$lcname/version.h
4400 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4401 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4402 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4403 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4404 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4407 map 'get_version $v' $LIBRARY_LIST
4410 /* Automatically generated by configure - do not modify! */
4411 #ifndef LIBAV_CONFIG_H
4412 #define LIBAV_CONFIG_H
4413 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4414 #define LIBAV_LICENSE "$(c_escape $license)"
4415 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4416 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4417 #define restrict $_restrict
4418 #define EXTERN_PREFIX "${extern_prefix}"
4419 #define EXTERN_ASM ${extern_prefix}
4420 #define SLIBSUF "$SLIBSUF"
4423 test -n "$malloc_prefix" &&
4424 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4426 if enabled yasm; then
4427 append config_files $TMPASM
4431 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4433 print_config ARCH_ "$config_files" $ARCH_LIST
4434 print_config HAVE_ "$config_files" $HAVE_LIST
4435 print_config CONFIG_ "$config_files" $CONFIG_LIST \
4439 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4441 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4442 cp_if_changed $TMPH config.h
4445 enabled yasm && cp_if_changed $TMPASM config.asm
4448 /* Generated by ffconf */
4449 #ifndef AVUTIL_AVCONFIG_H
4450 #define AVUTIL_AVCONFIG_H
4453 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4455 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4457 cp_if_changed $TMPH libavutil/avconfig.h
4459 test -n "$WARNINGS" && printf "\n$WARNINGS"
4461 # build pkg-config files
4463 pkgconfig_generate(){
4465 shortname=${name#lib}${build_suffix}
4470 enabled ${name#lib} || return 0
4472 cat <<EOF > $name/$name.pc
4474 exec_prefix=\${prefix}
4479 Description: $comment
4481 Requires: $(enabled shared || echo $requires)
4482 Requires.private: $(enabled shared && echo $requires)
4484 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4485 Libs.private: $(enabled shared && echo $libs)
4486 Cflags: -I\${includedir}
4488 cat <<EOF > $name/$name-uninstalled.pc
4491 libdir=\${pcfiledir}
4492 includedir=${source_path}
4495 Description: $comment
4499 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4500 Cflags: -I\${includedir}
4504 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4505 enabled movie_filter && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4506 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4507 enabled scale_filter && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4509 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4510 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4511 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4512 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4513 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4514 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4515 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"