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-neon-clobber-test check NEON registers for clobbering (should be
291 used only for debugging purposes)
292 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
293 should be used only for debugging purposes)
294 --enable-random randomly enable/disable components
296 --enable-random=LIST randomly enable/disable specific components or
297 --disable-random=LIST component groups. LIST is a comma-separated list
298 of NAME[:PROB] entries where NAME is a component
299 (group) and PROB the probability associated with
301 --random-seed=VALUE seed value for --enable/disable-random
303 NOTE: Object files are built at the place where configure is launched.
311 echo "$@" >> $logfile
316 pr -n -t $1 >> $logfile
327 WARNINGS="${WARNINGS}WARNING: $*\n"
334 If you think configure made a mistake, make sure you are using the latest
335 version from Git. If the latest version fails, report the problem to the
336 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
338 if disabled logging; then
340 Rerun configure with logging enabled (do not use --disable-logging), and
341 include the log this produces with your report.
345 Include the log file "$logfile" produced by configure as this will help
352 # Avoid locale weirdness, besides we really just want to translate ASCII.
354 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
358 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
362 echo "$*" | sed 's/["\\]/\\\0/g'
366 v=$(echo "$1" | sed "s/'/'\\\\''/g")
367 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
372 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
379 eval "case $v in $pat) echo $v ;; esac"
387 eval "case $v in $pat) ;; *) echo $v ;; esac"
394 for v; do eval $m; done
400 for v; do echo ${v}${suffix}; done
415 eval : \${$var:=$value}
420 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
426 eval $(sanitize_var_name "$var")='$*'
430 eval echo \$$(sanitize_var_name "$1")
435 eval level=\${${pvar}_level:=0}
436 eval ${pvar}_${level}="\$$pvar"
437 eval ${pvar}_level=$(($level+1))
443 eval level=\${${pvar}_level:-0}
444 test $level = 0 && continue
445 eval level=$(($level-1))
446 eval $pvar="\${${pvar}_${level}}"
447 eval ${pvar}_level=$level
448 eval unset ${pvar}_${level}
470 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
476 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
482 enabled $var && continue
483 eval sel="\$${var}_select"
484 eval sgs="\$${var}_suggest"
488 enable_deep_weak $sgs
500 disabled $var && continue
509 test "${1#!}" = "$1" && op== || op=!=
510 eval test "x\$${1#!}" $op "xyes"
514 test "${1#!}" = "$1" && op== || op=!=
515 eval test "x\$${1#!}" $op "xno"
520 enabled $opt || return 1
526 disabled $opt || return 1
532 enabled $opt && return 0
538 disabled $opt && return 0
545 eval : \${$opt:=\$${opt}_default}
553 [ $var = $value ] && return 0
561 enabled ${cfg}_checking && die "Circular dependency for $cfg."
562 disabled ${cfg}_checking && continue
563 enable ${cfg}_checking
566 eval dep_all="\$${cfg}_deps"
567 eval dep_any="\$${cfg}_deps_any"
568 eval dep_sel="\$${cfg}_select"
569 eval dep_sgs="\$${cfg}_suggest"
570 eval dep_ifa="\$${cfg}_if"
571 eval dep_ifn="\$${cfg}_if_any"
573 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
574 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
575 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
577 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
578 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
579 enabled_all $dep_all || disable $cfg
580 enabled_any $dep_any || disable $cfg
581 disabled_any $dep_sel && disable $cfg
583 if enabled $cfg; then
585 enable_deep_weak $dep_sgs
588 disable ${cfg}_checking
597 for cfg in $allopts; do
598 enabled $cfg || continue
599 eval dep_extralibs="\$${cfg}_extralibs"
600 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
608 map 'eval echo "$v \${$v:-no}"' "$@" |
609 awk "BEGIN { split(\"$files\", files) }
611 c = \"$pfx\" toupper(\$1);
617 if (file ~ /\\.h\$/) {
618 printf(\"#define %s %d\\n\", c, v) >>file;
619 } else if (file ~ /\\.asm\$/) {
620 printf(\"%%define %s %d\\n\", c, v) >>file;
621 } else if (file ~ /\\.mak\$/) {
622 n = -v ? \"\" : \"!\";
623 printf(\"%s%s=yes\\n\", n, c) >>file;
633 enabled $v && printf "%s\n" ${v%$suf};
640 eval "$var=\"\$$var $*\""
646 eval "$var=\"$* \$$var\""
654 append CFLAGS $($cflags_filter "$@")
658 append ASFLAGS $($asflags_filter "$@")
662 append LDFLAGS $($ldflags_filter "$@")
666 append STRIPFLAGS "$@"
670 prepend extralibs $($ldflags_filter "$@")
674 append host_cppflags "$@"
678 append host_cflags $($host_cflags_filter "$@")
682 append host_ldflags $($host_ldflags_filter "$@")
686 append compat_objs $1
688 map 'add_cppflags -D$v' "$@"
693 "$@" >> $logfile 2>&1
697 eval printf '%s\\n' $CC_O
701 eval printf '%s\\n' $CC_E
708 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
715 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
719 eval printf '%s\\n' $AS_O
726 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
730 log check_inline_asm "$@"
735 check_cc "$@" <<EOF && enable $name
736 void foo(void){ __asm__ volatile($code); }
742 check_inline_asm ${1}_inline "\"$2\""
743 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
751 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
755 eval printf '%s\\n' $LD_O
760 flags=$(filter_out '-l*' "$@")
761 libs=$(filter '-l*' "$@")
762 check_cc $($cflags_filter $flags) || return
763 flags=$($ldflags_filter $flags)
764 libs=$($ldflags_filter $libs)
765 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
770 test "${hdr%.h}" = "${hdr}" &&
771 echo "#include $hdr" ||
772 echo "#include <$hdr>"
782 for hdr in $headers; do
785 echo "int main(void) { $code; return 0; }"
786 } | check_$check "$@"
790 log check_cppflags "$@"
791 check_cc "$@" <<EOF && append CPPFLAGS "$@"
798 set -- $($cflags_filter "$@")
805 log check_cflags "$@"
806 test_cflags "$@" && add_cflags "$@"
810 log test_ldflags "$@"
812 int main(void){ return 0; }
817 log check_ldflags "$@"
818 test_ldflags "$@" && add_ldflags "$@"
822 log test_stripflags "$@"
823 # call check_cc to get a fresh TMPO
825 int main(void) { return 0; }
827 check_cmd $strip $STRIPFLAGS "$@" $TMPO
831 log check_stripflags "$@"
832 test_stripflags "$@" && add_stripflags "$@"
836 log check_header "$@"
840 check_cpp "$@" <<EOF && enable_safe $header
851 check_ld "$@" <<EOF && enable $func
853 int main(void){ $func(); }
858 log check_mathfunc "$@"
862 test $narg = 2 && args="f, g" || args="f"
864 check_ld "$@" <<EOF && enable $func
866 float foo(float f, float g) { return $func($args); }
867 int main(void){ return 0; }
871 check_func_headers(){
872 log check_func_headers "$@"
877 for hdr in $headers; do
880 for func in $funcs; do
881 echo "long check_$func(void) { return (long) $func; }"
883 echo "int main(void) { return 0; }"
884 } | check_ld "$@" && enable $funcs && enable_safe $headers
887 check_cpp_condition(){
888 log check_cpp_condition "$@"
895 #error "unsatisfied condition: $condition"
905 check_header $header && check_func $func "$@" && add_extralibs "$@"
913 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
917 log check_pkg_config "$@"
922 check_cmd $pkg_config --exists --print-errors $pkg || return
923 pkg_cflags=$($pkg_config --cflags $pkg)
924 pkg_libs=$($pkg_config --libs $pkg)
925 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
926 set_safe ${pkg}_cflags $pkg_cflags &&
927 set_safe ${pkg}_libs $pkg_libs
931 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
937 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
938 # are safe but may not be available everywhere. Thus we use
939 # raise(SIGTERM) instead. The check is run in a subshell so we
940 # can redirect the "Terminated" message from the shell. SIGBUS
941 # is not defined by standard C so it is used conditionally.
943 (check_exec "$@") >> $logfile 2>&1 <<EOF
945 static void sighandler(int sig){
951 int (*func_ptr)(void) = foo;
953 signal(SIGILL, sighandler);
954 signal(SIGFPE, sighandler);
955 signal(SIGSEGV, sighandler);
957 signal(SIGBUS, sighandler);
970 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
974 log check_struct "$@"
979 disable_safe "${struct}_${member}"
980 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
981 enable_safe "${struct}_${member}"
985 log check_builtin "$@"
991 check_code ld "$headers" "$builtin" "$@" && enable "$name"
999 check_lib $header $func "$@" || die "ERROR: $name not found"
1007 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1010 require_pkg_config(){
1012 check_pkg_config "$@" || die "ERROR: $pkg not found"
1013 add_cflags $(get_safe ${pkg}_cflags)
1014 add_extralibs $(get_safe ${pkg}_libs)
1018 eval printf '%s\\n' $HOSTCC_E
1022 eval printf '%s\\n' $HOSTCC_O
1026 log check_host_cc "$@"
1029 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1033 log check_host_cpp "$@"
1036 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1039 check_host_cppflags(){
1040 log check_host_cppflags "$@"
1041 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1046 check_host_cflags(){
1047 log check_host_cflags "$@"
1048 set -- $($host_cflags_filter "$@")
1049 check_host_cc "$@" <<EOF && append host_cflags "$@"
1054 check_host_cpp_condition(){
1055 log check_host_cpp_condition "$@"
1059 check_host_cpp "$@" <<EOF
1062 #error "unsatisfied condition: $condition"
1070 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1074 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1075 mkdir -p "$(dirname $2)"
1079 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1080 # system-dependent things.
1098 transcode_aac_example
1101 EXTERNAL_LIBRARY_LIST="
1164 $EXTERNAL_LIBRARY_LIST
1186 safe_bitstream_reader
1310 $(add_suffix _external $ARCH_EXT_LIST)
1311 $(add_suffix _inline $ARCH_EXT_LIST)
1329 cdio_paranoia_paranoia_h
1335 dev_bktr_ioctl_bt848_h
1336 dev_bktr_ioctl_meteor_h
1338 dev_video_bktr_ioctl_bt848_h
1339 dev_video_meteor_ioctl_meteor_h
1355 GetProcessAffinityMask
1356 GetProcessMemoryInfo
1358 GetSystemTimeAsFileTime
1369 jack_port_get_latency_range
1378 machine_ioctl_bt848_h
1379 machine_ioctl_meteor_h
1396 SetConsoleTextAttribute
1407 struct_group_source_req
1408 struct_ip_mreq_source
1411 struct_rusage_ru_maxrss
1413 struct_sockaddr_sa_len
1414 struct_sockaddr_storage
1415 struct_v4l2_frmivalenum_discrete
1418 sync_val_compare_and_swap
1442 # options emitted with CONFIG_ prefix but not available on the command line
1540 # code dependency declarations
1542 # architecture extensions
1547 neon_deps_any="aarch64 arm"
1548 vfp_deps_any="aarch64 arm"
1551 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1559 x86_64_select="i686"
1560 x86_64_suggest="fast_cmov"
1563 amd3dnowext_deps="amd3dnow"
1577 mmx_external_deps="yasm"
1578 mmx_inline_deps="inline_asm"
1579 mmx_suggest="mmx_external mmx_inline"
1581 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1582 eval dep=\$${ext}_deps
1583 eval ${ext}_external_deps='"${dep}_external"'
1584 eval ${ext}_inline_deps='"${dep}_inline"'
1585 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1588 aligned_stack_if_any="aarch64 ppc x86"
1589 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1590 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1591 fast_unaligned_if_any="aarch64 ppc x86"
1593 need_memalign="altivec neon sse"
1595 # system capabilities
1596 log2_deps="!libc_msvcrt"
1598 symver_if_any="symver_asm_label symver_gnu_asm"
1601 atomics_gcc_if="sync_val_compare_and_swap"
1602 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1603 atomics_win32_if="MemoryBarrier"
1604 atomics_native_if_any="$ATOMICS_LIST"
1605 threads_if_any="$THREADS_LIST"
1609 error_resilience_select="dsputil"
1610 lpc_select="dsputil"
1613 mpegaudio_select="mpegaudiodsp"
1614 mpegaudiodsp_select="dct"
1615 mpegvideo_select="dsputil hpeldsp videodsp"
1616 mpegvideoenc_select="mpegvideo"
1618 # decoders / encoders
1619 aac_decoder_select="mdct sinewin"
1620 aac_encoder_select="audio_frame_queue mdct sinewin"
1621 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1622 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1623 ac3_encoder_select="mdct ac3dsp dsputil"
1624 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1625 aic_decoder_select="dsputil golomb"
1626 alac_encoder_select="lpc"
1627 als_decoder_select="dsputil"
1628 amrnb_decoder_select="lsp"
1629 amrwb_decoder_select="lsp"
1630 amv_decoder_select="dsputil hpeldsp"
1631 ape_decoder_select="dsputil"
1632 asv1_decoder_select="dsputil"
1633 asv1_encoder_select="dsputil"
1634 asv2_decoder_select="dsputil"
1635 asv2_encoder_select="dsputil"
1636 atrac1_decoder_select="mdct sinewin"
1637 atrac3_decoder_select="mdct"
1638 atrac3p_decoder_select="mdct sinewin"
1639 bink_decoder_select="dsputil hpeldsp"
1640 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1641 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1642 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1643 cllc_decoder_select="dsputil"
1644 comfortnoise_encoder_select="lpc"
1645 cook_decoder_select="dsputil mdct sinewin"
1646 cscd_decoder_select="lzo"
1647 cscd_decoder_suggest="zlib"
1648 dca_decoder_select="mdct"
1649 dnxhd_decoder_select="dsputil"
1650 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1651 dvvideo_decoder_select="dsputil"
1652 dvvideo_encoder_select="dsputil"
1653 dxa_decoder_deps="zlib"
1654 eac3_decoder_select="ac3_decoder"
1655 eac3_encoder_select="ac3_encoder"
1656 eamad_decoder_select="aandcttables dsputil mpegvideo"
1657 eatgq_decoder_select="aandcttables dsputil"
1658 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1659 ffv1_decoder_select="dsputil golomb rangecoder"
1660 ffv1_encoder_select="dsputil rangecoder"
1661 ffvhuff_decoder_select="dsputil"
1662 ffvhuff_encoder_select="dsputil huffman"
1663 flac_decoder_select="golomb"
1664 flac_encoder_select="dsputil golomb lpc"
1665 flashsv_decoder_deps="zlib"
1666 flashsv_encoder_deps="zlib"
1667 flashsv2_decoder_deps="zlib"
1668 flv_decoder_select="h263_decoder"
1669 flv_encoder_select="h263_encoder"
1670 fourxm_decoder_select="dsputil"
1671 fraps_decoder_select="dsputil huffman"
1672 g2m_decoder_deps="zlib"
1673 g2m_decoder_select="dsputil"
1674 h261_decoder_select="error_resilience mpegvideo"
1675 h261_encoder_select="aandcttables mpegvideoenc"
1676 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1677 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1678 h263i_decoder_select="h263_decoder"
1679 h263p_encoder_select="h263_encoder"
1680 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1681 h264_decoder_suggest="error_resilience"
1682 hevc_decoder_select="dsputil golomb videodsp"
1683 huffyuv_decoder_select="dsputil"
1684 huffyuv_encoder_select="dsputil huffman"
1685 iac_decoder_select="dsputil fft mdct sinewin"
1686 imc_decoder_select="dsputil fft mdct sinewin"
1687 indeo3_decoder_select="hpeldsp"
1688 interplay_video_decoder_select="hpeldsp"
1689 jpegls_decoder_select="dsputil golomb hpeldsp"
1690 jpegls_encoder_select="golomb"
1691 jv_decoder_select="dsputil"
1692 lagarith_decoder_select="dsputil"
1693 ljpeg_encoder_select="aandcttables mpegvideoenc"
1694 loco_decoder_select="golomb"
1695 mdec_decoder_select="dsputil error_resilience mpegvideo"
1696 metasound_decoder_select="lsp mdct sinewin"
1697 mimic_decoder_select="dsputil hpeldsp"
1698 mjpeg_decoder_select="dsputil hpeldsp"
1699 mjpegb_decoder_select="dsputil hpeldsp"
1700 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1701 mlp_decoder_select="dsputil mlp_parser"
1702 motionpixels_decoder_select="dsputil"
1703 mp1_decoder_select="mpegaudio"
1704 mp1float_decoder_select="mpegaudio"
1705 mp2_decoder_select="mpegaudio"
1706 mp2float_decoder_select="mpegaudio"
1707 mp3_decoder_select="mpegaudio"
1708 mp3adu_decoder_select="mpegaudio"
1709 mp3adufloat_decoder_select="mpegaudio"
1710 mp3float_decoder_select="mpegaudio"
1711 mp3on4_decoder_select="mpegaudio"
1712 mp3on4float_decoder_select="mpegaudio"
1713 mpc7_decoder_select="dsputil mpegaudiodsp"
1714 mpc8_decoder_select="dsputil mpegaudiodsp"
1715 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1716 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1717 mpeg1video_decoder_select="error_resilience mpegvideo"
1718 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1719 mpeg2video_decoder_select="error_resilience mpegvideo"
1720 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1721 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1722 mpeg4_encoder_select="h263_encoder"
1723 msmpeg4v1_decoder_select="h263_decoder"
1724 msmpeg4v2_decoder_select="h263_decoder"
1725 msmpeg4v2_encoder_select="h263_encoder"
1726 msmpeg4v3_decoder_select="h263_decoder"
1727 msmpeg4v3_encoder_select="h263_encoder"
1728 mss2_decoder_select="error_resilience vc1_decoder"
1729 mxpeg_decoder_select="dsputil hpeldsp"
1730 nellymoser_decoder_select="mdct sinewin"
1731 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1732 nuv_decoder_select="dsputil lzo"
1733 png_decoder_deps="zlib"
1734 png_decoder_select="dsputil"
1735 png_encoder_deps="zlib"
1736 png_encoder_select="dsputil"
1737 prores_decoder_select="dsputil"
1738 prores_encoder_select="dsputil"
1739 qcelp_decoder_select="lsp"
1740 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1741 ra_144_encoder_select="audio_frame_queue lpc"
1742 ralf_decoder_select="golomb"
1743 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1744 rv10_encoder_select="h263_encoder"
1745 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1746 rv20_encoder_select="h263_encoder"
1747 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1748 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1749 shorten_decoder_select="golomb"
1750 sipr_decoder_select="lsp"
1751 sp5x_decoder_select="dsputil hpeldsp"
1752 svq1_decoder_select="hpeldsp"
1753 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1754 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1755 svq3_decoder_suggest="error_resilience zlib"
1756 tak_decoder_select="dsputil"
1757 theora_decoder_select="vp3_decoder"
1758 tiff_decoder_suggest="zlib"
1759 tiff_encoder_suggest="zlib"
1760 thp_decoder_select="dsputil hpeldsp"
1761 truehd_decoder_select="mlp_decoder"
1762 truemotion2_decoder_select="dsputil"
1763 truespeech_decoder_select="dsputil"
1764 tscc_decoder_deps="zlib"
1765 twinvq_decoder_select="mdct lsp sinewin"
1766 utvideo_decoder_select="dsputil"
1767 utvideo_encoder_select="dsputil huffman"
1768 vble_decoder_select="dsputil"
1769 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1770 vc1image_decoder_select="vc1_decoder"
1771 vorbis_decoder_select="mdct"
1772 vorbis_encoder_select="mdct"
1773 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1774 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1775 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1776 vp6a_decoder_select="vp6_decoder"
1777 vp6f_decoder_select="vp6_decoder"
1778 vp8_decoder_select="h264pred videodsp"
1779 vp9_decoder_select="videodsp"
1780 webp_decoder_select="vp8_decoder"
1781 wmapro_decoder_select="mdct sinewin"
1782 wmav1_decoder_select="mdct sinewin"
1783 wmav1_encoder_select="mdct sinewin"
1784 wmav2_decoder_select="mdct sinewin"
1785 wmav2_encoder_select="mdct sinewin"
1786 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1787 wmv1_decoder_select="h263_decoder"
1788 wmv1_encoder_select="h263_encoder"
1789 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1790 wmv2_encoder_select="h263_encoder"
1791 wmv3_decoder_select="vc1_decoder"
1792 wmv3image_decoder_select="wmv3_decoder"
1793 zerocodec_decoder_deps="zlib"
1794 zlib_decoder_deps="zlib"
1795 zlib_encoder_deps="zlib"
1796 zmbv_decoder_deps="zlib"
1797 zmbv_encoder_deps="zlib"
1799 # hardware accelerators
1800 dxva2_deps="dxva2api_h"
1801 vaapi_deps="va_va_h"
1802 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1803 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1804 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1806 h263_vaapi_hwaccel_deps="vaapi"
1807 h263_vaapi_hwaccel_select="h263_decoder"
1808 h263_vdpau_hwaccel_deps="vdpau"
1809 h263_vdpau_hwaccel_select="h263_decoder"
1810 h264_dxva2_hwaccel_deps="dxva2"
1811 h264_dxva2_hwaccel_select="h264_decoder"
1812 h264_vaapi_hwaccel_deps="vaapi"
1813 h264_vaapi_hwaccel_select="h264_decoder"
1814 h264_vda_hwaccel_deps="vda"
1815 h264_vda_hwaccel_select="h264_decoder"
1816 h264_vdpau_hwaccel_deps="vdpau"
1817 h264_vdpau_hwaccel_select="h264_decoder"
1818 mpeg1_vdpau_hwaccel_deps="vdpau"
1819 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1820 mpeg2_dxva2_hwaccel_deps="dxva2"
1821 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1822 mpeg2_vaapi_hwaccel_deps="vaapi"
1823 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1824 mpeg2_vdpau_hwaccel_deps="vdpau"
1825 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1826 mpeg4_vaapi_hwaccel_deps="vaapi"
1827 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1828 mpeg4_vdpau_hwaccel_deps="vdpau"
1829 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1830 vc1_dxva2_hwaccel_deps="dxva2"
1831 vc1_dxva2_hwaccel_select="vc1_decoder"
1832 vc1_vaapi_hwaccel_deps="vaapi"
1833 vc1_vaapi_hwaccel_select="vc1_decoder"
1834 vc1_vdpau_hwaccel_deps="vdpau"
1835 vc1_vdpau_hwaccel_select="vc1_decoder"
1836 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1837 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1838 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1841 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1842 mpeg4video_parser_select="error_resilience mpegvideo"
1843 mpegvideo_parser_select="error_resilience mpegvideo"
1844 vc1_parser_select="mpegvideo"
1846 # external libraries
1847 libfaac_encoder_deps="libfaac"
1848 libfaac_encoder_select="audio_frame_queue"
1849 libfdk_aac_decoder_deps="libfdk_aac"
1850 libfdk_aac_encoder_deps="libfdk_aac"
1851 libfdk_aac_encoder_select="audio_frame_queue"
1852 libgsm_decoder_deps="libgsm"
1853 libgsm_encoder_deps="libgsm"
1854 libgsm_ms_decoder_deps="libgsm"
1855 libgsm_ms_encoder_deps="libgsm"
1856 libilbc_decoder_deps="libilbc"
1857 libilbc_encoder_deps="libilbc"
1858 libmp3lame_encoder_deps="libmp3lame"
1859 libmp3lame_encoder_select="audio_frame_queue"
1860 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1861 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1862 libopencore_amrnb_encoder_select="audio_frame_queue"
1863 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1864 libopenjpeg_decoder_deps="libopenjpeg"
1865 libopenjpeg_encoder_deps="libopenjpeg"
1866 libopus_decoder_deps="libopus"
1867 libopus_encoder_deps="libopus"
1868 libopus_encoder_select="audio_frame_queue"
1869 libschroedinger_decoder_deps="libschroedinger"
1870 libschroedinger_encoder_deps="libschroedinger"
1871 libspeex_decoder_deps="libspeex"
1872 libspeex_encoder_deps="libspeex"
1873 libspeex_encoder_select="audio_frame_queue"
1874 libtheora_encoder_deps="libtheora"
1875 libvo_aacenc_encoder_deps="libvo_aacenc"
1876 libvo_aacenc_encoder_select="audio_frame_queue"
1877 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1878 libvorbis_encoder_deps="libvorbis"
1879 libvorbis_encoder_select="audio_frame_queue"
1880 libvpx_vp8_decoder_deps="libvpx"
1881 libvpx_vp8_encoder_deps="libvpx"
1882 libvpx_vp9_decoder_deps="libvpx"
1883 libvpx_vp9_encoder_deps="libvpx"
1884 libwavpack_encoder_deps="libwavpack"
1885 libwebp_encoder_deps="libwebp"
1886 libx264_encoder_deps="libx264"
1887 libxavs_encoder_deps="libxavs"
1888 libxvid_encoder_deps="libxvid"
1891 ac3_demuxer_select="ac3_parser"
1892 asf_demuxer_select="riffdec"
1893 asf_muxer_select="riffenc"
1894 asf_stream_muxer_select="asf_muxer"
1895 avi_demuxer_select="riffdec"
1896 avi_muxer_select="riffenc"
1897 avisynth_demuxer_deps="avisynth"
1898 avisynth_demuxer_select="riffdec"
1899 caf_demuxer_select="riffdec"
1900 dirac_demuxer_select="dirac_parser"
1901 dxa_demuxer_select="riffdec"
1902 eac3_demuxer_select="ac3_parser"
1903 f4v_muxer_select="mov_muxer"
1904 flac_demuxer_select="flac_parser"
1905 hds_muxer_select="flv_muxer"
1906 hls_muxer_select="mpegts_muxer"
1907 ipod_muxer_select="mov_muxer"
1908 ismv_muxer_select="mov_muxer"
1909 matroska_audio_muxer_select="matroska_muxer"
1910 matroska_demuxer_select="riffdec"
1911 matroska_demuxer_suggest="bzlib lzo zlib"
1912 matroska_muxer_select="riffenc"
1913 mmf_muxer_select="riffenc"
1914 mov_demuxer_select="riffdec"
1915 mov_demuxer_suggest="zlib"
1916 mov_muxer_select="riffenc rtpenc_chain"
1917 mp3_demuxer_select="mpegaudio_parser"
1918 mp4_muxer_select="mov_muxer"
1919 mpegts_muxer_select="adts_muxer latm_muxer"
1920 mpegtsraw_demuxer_select="mpegts_demuxer"
1921 mxf_d10_muxer_select="mxf_muxer"
1922 nut_muxer_select="riffenc"
1923 nuv_demuxer_select="riffdec"
1924 ogg_demuxer_select="golomb"
1925 psp_muxer_select="mov_muxer"
1926 rtp_demuxer_select="sdp_demuxer"
1927 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1928 rtsp_demuxer_select="http_protocol rtpdec"
1929 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1930 sap_demuxer_select="sdp_demuxer"
1931 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1932 sdp_demuxer_select="rtpdec"
1933 smoothstreaming_muxer_select="ismv_muxer"
1934 spdif_muxer_select="aac_parser"
1935 tak_demuxer_select="tak_parser"
1936 tg2_muxer_select="mov_muxer"
1937 tgp_muxer_select="mov_muxer"
1938 w64_demuxer_select="wav_demuxer"
1939 wav_demuxer_select="riffdec"
1940 wav_muxer_select="riffenc"
1941 webm_muxer_select="riffenc"
1942 wtv_demuxer_select="riffdec"
1943 xmv_demuxer_select="riffdec"
1944 xwma_demuxer_select="riffdec"
1947 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1948 alsa_outdev_deps="alsa_asoundlib_h"
1949 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1950 dv1394_indev_deps="dv1394"
1951 dv1394_indev_select="dv_demuxer"
1952 fbdev_indev_deps="linux_fb_h"
1953 jack_indev_deps="jack_jack_h pthreads"
1954 libcdio_indev_deps="libcdio"
1955 libdc1394_indev_deps="libdc1394"
1956 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1957 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1958 pulse_indev_deps="libpulse"
1959 sndio_indev_deps="sndio_h"
1960 sndio_outdev_deps="sndio_h"
1961 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1962 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1963 vfwcap_indev_extralibs="-lavicap32"
1964 x11grab_indev_deps="x11grab XShmCreateImage"
1967 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1968 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1969 ffrtmpcrypt_protocol_select="tcp_protocol"
1970 ffrtmphttp_protocol_deps="!librtmp_protocol"
1971 ffrtmphttp_protocol_select="http_protocol"
1972 gopher_protocol_select="network"
1973 httpproxy_protocol_select="tcp_protocol"
1974 http_protocol_select="tcp_protocol"
1975 https_protocol_select="tls_protocol"
1976 librtmp_protocol_deps="librtmp"
1977 librtmpe_protocol_deps="librtmp"
1978 librtmps_protocol_deps="librtmp"
1979 librtmpt_protocol_deps="librtmp"
1980 librtmpte_protocol_deps="librtmp"
1981 mmsh_protocol_select="http_protocol"
1982 mmst_protocol_select="network"
1983 rtmp_protocol_deps="!librtmp_protocol"
1984 rtmp_protocol_select="tcp_protocol"
1985 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1986 rtmps_protocol_deps="!librtmp_protocol"
1987 rtmps_protocol_select="tls_protocol"
1988 rtmpt_protocol_select="ffrtmphttp_protocol"
1989 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1990 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1991 rtp_protocol_select="udp_protocol"
1992 sctp_protocol_deps="struct_sctp_event_subscribe"
1993 sctp_protocol_select="network"
1994 srtp_protocol_select="rtp_protocol"
1995 tcp_protocol_select="network"
1996 tls_protocol_deps_any="openssl gnutls"
1997 tls_protocol_select="tcp_protocol"
1998 udp_protocol_select="network"
1999 unix_protocol_deps="sys_un_h"
2000 unix_protocol_select="network"
2003 blackframe_filter_deps="gpl"
2004 boxblur_filter_deps="gpl"
2005 cropdetect_filter_deps="gpl"
2006 delogo_filter_deps="gpl"
2007 drawtext_filter_deps="libfreetype"
2008 frei0r_filter_deps="frei0r dlopen strtok_r"
2009 frei0r_filter_extralibs='$ldl'
2010 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2011 frei0r_src_filter_extralibs='$ldl'
2012 hqdn3d_filter_deps="gpl"
2013 interlace_filter_deps="gpl"
2014 resample_filter_deps="avresample"
2015 ocv_filter_deps="libopencv"
2016 scale_filter_deps="swscale"
2019 output_example_deps="avcodec avformat avutil swscale"
2020 transcode_aac_example_deps="avcodec avformat avresample"
2023 avcodec_deps="avutil"
2024 avdevice_deps="avutil avcodec avformat"
2025 avfilter_deps="avutil"
2026 avformat_deps="avutil avcodec"
2027 avresample_deps="avutil"
2028 swscale_deps="avutil"
2031 avconv_deps="avcodec avfilter avformat avresample swscale"
2032 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2033 fps_filter null_filter resample_filter scale_filter
2034 setpts_filter trim_filter"
2035 avplay_deps="avcodec avformat avresample swscale sdl"
2036 avplay_select="rdft"
2037 avprobe_deps="avcodec avformat"
2038 avserver_deps="avformat fork !shared"
2039 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2040 avserver_extralibs='$ldl'
2044 texi2html_deps="doc"
2046 # default parameters
2048 logfile="config.log"
2050 # installation paths
2051 prefix_default="/usr/local"
2052 bindir_default='${prefix}/bin'
2053 datadir_default='${prefix}/share/avconv'
2054 docdir_default='${prefix}/share/doc/libav'
2055 incdir_default='${prefix}/include'
2056 libdir_default='${prefix}/lib'
2057 mandir_default='${prefix}/share/man'
2058 shlibdir_default="$libdir_default"
2063 host_cc_default="gcc"
2068 pkg_config_default=pkg-config
2076 arch_default=$(uname -m)
2080 target_os_default=$(tolower $(uname -s))
2081 host_os=$target_os_default
2083 # configurable options
2084 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2089 enable optimizations
2090 enable safe_bitstream_reader
2092 enable swscale_alpha
2094 # By default, enable only those hwaccels that have no external dependencies.
2098 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2101 FULLNAME='$(NAME)$(BUILDSUF)'
2102 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2105 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2106 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2107 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2108 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2109 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2110 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2130 host_cflags_filter=echo
2131 host_ldflags_filter=echo
2133 target_path='$(CURDIR)'
2135 # since the object filename is not given with the -MM flag, the compiler
2136 # is only able to print the basename, and we must add the path ourselves
2137 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2141 if test -f configure; then
2144 source_path=$(cd $(dirname "$0"); pwd)
2145 echo "$source_path" | grep -q '[[:blank:]]' &&
2146 die "Out of tree builds are impossible with whitespace in source path."
2147 test -e "$source_path/config.h" &&
2148 die "Out of tree builds are impossible with config.h in source dir."
2155 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2161 file=$source_path/$3
2162 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2165 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2166 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2167 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2168 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2169 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2170 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2171 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2172 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2173 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2174 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2175 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2191 for n in $COMPONENT_LIST; do
2192 v=$(toupper ${n%s})_LIST
2194 eval ${n}_if_any="\$$v"
2197 enable $ARCH_EXT_LIST
2200 echo "Unknown option \"$1\"."
2201 echo "See $0 --help for available options."
2206 cat | tr ' ' '\n' | sort | pr -r -3 -t
2212 echo $* | sed s/$suffix//g | print_3_columns
2224 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2225 echo "prob ${prob:-0.5}"
2233 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2234 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2244 add_extralibs $optval
2247 disable $INDEV_LIST $OUTDEV_LIST
2250 debuglevel="$optval"
2253 disable $PROGRAM_LIST
2255 --disable-everything)
2256 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2259 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2260 disable $LIBRARY_LIST $PROGRAM_LIST doc
2262 --enable-random|--disable-random)
2263 action=${opt%%-random}
2264 do_random ${action#--} $COMPONENT_LIST
2266 --enable-random=*|--disable-random=*)
2267 action=${opt%%-random=*}
2268 do_random ${action#--} $optval
2270 --enable-*=*|--disable-*=*)
2271 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2272 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2273 eval list=\$$(toupper $thing)_LIST
2274 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2275 $action $(filter "$name" $list)
2277 --enable-?*|--disable-?*)
2278 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2279 if is_in $option $COMPONENT_LIST; then
2280 test $action = disable && action=unset
2281 eval $action \$$(toupper ${option%s})_LIST
2282 elif is_in $option $CMDLINE_SELECT; then
2289 NAME="${opt#--list-}"
2290 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2292 eval show_list $NAME \$$(toupper $NAME)_LIST
2294 --help|-h) show_help
2297 optname="${opt%%=*}"
2298 optname="${optname#--}"
2299 optname=$(echo "$optname" | sed 's/-/_/g')
2300 if is_in $optname $CMDLINE_SET; then
2301 eval $optname='$optval'
2302 elif is_in $optname $CMDLINE_APPEND; then
2303 append $optname "$optval"
2311 disabled logging && logfile=/dev/null
2313 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2316 test -n "$cross_prefix" && enable cross_compile
2318 if enabled cross_compile; then
2319 test -n "$arch" && test -n "$target_os" ||
2320 die "Must specify target arch and OS when cross-compiling"
2323 ar_default="${cross_prefix}${ar_default}"
2324 cc_default="${cross_prefix}${cc_default}"
2325 nm_default="${cross_prefix}${nm_default}"
2326 pkg_config_default="${cross_prefix}${pkg_config_default}"
2327 ranlib="${cross_prefix}${ranlib}"
2328 strip="${cross_prefix}${strip}"
2330 sysinclude_default="${sysroot}/usr/include"
2332 case "$toolchain" in
2335 add_cflags -fsanitize=address
2336 add_ldflags -fsanitize=address
2340 add_cflags -fsanitize=thread -pie
2341 add_ldflags -fsanitize=thread -pie
2345 add_cflags -fsanitize=address
2346 add_ldflags -fsanitize=address
2350 add_cflags -fsanitize=thread -pie -fPIC
2351 add_ldflags -fsanitize=thread -pie -fPIC
2354 target_exec_default="valgrind"
2355 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2358 target_exec_default="valgrind"
2359 target_exec_args="--track-origins=yes --leak-check=full"
2362 # Check whether the current MSVC version needs the C99 converter.
2363 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2364 # support enough of C99 to build libav. Default to the new
2365 # behaviour if the regexp was unable to match anything, since this
2366 # successfully parses the version number of existing supported
2367 # versions that require the converter (MSVC 2010 and 2012).
2368 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2369 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2372 cc_default="c99wrap cl"
2375 nm_default="dumpbin -symbols"
2377 target_os_default="win32"
2378 # Use a relative path for TMPDIR. This makes sure all the
2379 # ffconf temp files are written with a relative path, avoiding
2380 # issues with msys/win32 path conversion for MSVC parameters
2381 # such as -Fo<file> or -out:<file>.
2387 nm_default="dumpbin -symbols"
2389 target_os_default="win32"
2393 add_cflags -fprofile-arcs -ftest-coverage
2394 add_ldflags -fprofile-arcs -ftest-coverage
2397 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2398 add_ldflags -Wl,-z,relro -Wl,-z,now
2401 die "Unknown toolchain $toolchain"
2405 set_default arch cc pkg_config sysinclude target_exec target_os
2406 enabled cross_compile || host_cc_default=$cc
2409 if ! $pkg_config --version >/dev/null 2>&1; then
2410 warn "$pkg_config not found, library detection may fail."
2416 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2420 EXESUF=$(exesuf $target_os)
2421 HOSTEXESUF=$(exesuf $host_os)
2423 # set temporary file name
2424 : ${TMPDIR:=$TEMPDIR}
2428 if ! check_cmd mktemp -u XXXXXX; then
2429 # simple replacement for missing mktemp
2430 # NOT SAFE FOR GENERAL USE
2432 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2437 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2438 (set -C; exec > $tmp) 2>/dev/null ||
2439 die "Unable to create temporary file in $TMPDIR."
2440 append TMPFILES $tmp
2444 trap 'rm -f -- $TMPFILES' EXIT
2448 tmpfile TMPE $EXESUF
2459 # make sure we can execute files in $TMPDIR
2460 cat > $TMPSH 2>> $logfile <<EOF
2463 chmod +x $TMPSH >> $logfile 2>&1
2464 if ! $TMPSH >> $logfile 2>&1; then
2466 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2467 variable to another directory and make sure that it is not mounted noexec.
2469 die "Sanity test failed."
2475 -std=c99) echo -c99 ;;
2476 -mcpu=*) echo -arch ${flag#*=} ;;
2477 -mieee) echo -ieee ;;
2478 -O*|-fast) echo $flag ;;
2479 -fno-math-errno) echo -assume nomath_errno ;;
2481 -Wall) echo -msg_enable level2 ;;
2482 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2483 -Wl,*) echo $flag ;;
2493 -Wno-switch) echo -Wno-switch-enum ;;
2494 -Wno-format-zero-length) ;;
2495 -Wdisabled-optimization) ;;
2496 -Wno-pointer-sign) echo -Wno-other ;;
2502 msvc_common_flags(){
2505 # In addition to specifying certain flags under the compiler
2506 # specific filters, they must be specified here as well or else the
2507 # generic catch all at the bottom will print the original flag.
2511 -fomit-frame-pointer) ;;
2515 -fno-signed-zeros) ;;
2519 -lz) echo zlib.lib ;;
2520 -lavifil32) echo vfw32.lib ;;
2521 -lavicap32) echo vfw32.lib user32.lib ;;
2522 -l*) echo ${flag#-l}.lib ;;
2529 msvc_common_flags "$@"
2532 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2533 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2534 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2541 msvc_common_flags "$@"
2544 # Despite what Intel's documentation says -Wall, which is supported
2545 # on Windows, does enable remarks so disable them here.
2546 -Wall) echo $flag -Qdiag-disable:remark ;;
2547 -std=c99) echo -Qstd=c99 ;;
2555 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2556 -fomit-frame-pointer) echo -Mnoframe ;;
2567 case "${flag#*=}" in
2568 native) echo -xtarget=native ;;
2569 v9|niagara) echo -xarch=sparc ;;
2570 ultrasparc) echo -xarch=sparcvis ;;
2571 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2572 i586|pentium) echo -xchip=pentium ;;
2573 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2574 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2575 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2576 pentium4*) echo -xtarget=pentium4 ;;
2577 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2578 *-sse3) echo -xarch=sse3 ;;
2579 core2) echo -xarch=ssse3 -xchip=core2 ;;
2580 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2581 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2582 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2583 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2584 k8|opteron|athlon64|athlon-fx)
2585 echo -xarch=sse2a ;;
2586 athlon*) echo -xarch=pentium_proa ;;
2589 -std=c99) echo -xc99 ;;
2590 -fomit-frame-pointer) echo -xregs=frameptr ;;
2591 -fPIC) echo -KPIC -xcode=pic32 ;;
2592 -W*,*) echo $flag ;;
2593 -f*-*|-W*|-mimpure-text) ;;
2604 case "${flag#*=}" in
2605 armv7-a|cortex-a*) echo -mv=7a8 ;;
2606 armv7-r|cortex-r*) echo -mv=7r4 ;;
2607 armv7-m|cortex-m*) echo -mv=7m3 ;;
2608 armv6*|arm11*) echo -mv=6 ;;
2609 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2611 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2614 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2615 -mfpu=vfp) echo --float_support=vfpv2 ;;
2616 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2617 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2618 -msoft-float) echo --float_support=vfplib ;;
2619 -O[0-3]|-mf=*) echo $flag ;;
2621 -pds=*) echo $flag ;;
2622 -D*|-I*) echo $flag ;;
2623 --gcc|--abi=*) echo $flag ;;
2633 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2634 unset _ld_o _ldflags _ld_lib _ld_path
2635 unset _depflags _DEPCMD _DEPFLAGS
2638 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2640 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2641 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2642 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2645 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2647 gcc_version=$($_cc --version | head -n1)
2648 gcc_basever=$($_cc -dumpversion)
2649 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2650 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2651 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2652 if ! $_cc -dumpversion | grep -q '^2\.'; then
2653 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2657 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2659 _ident=$($_cc --version | head -n1)
2664 elif $_cc -v 2>&1 | grep -q xlc; then
2666 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2668 _cflags_size='-O5 -qcompact'
2669 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2671 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2673 _cflags_speed='-fast'
2675 _flags_filter=ccc_flags
2676 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2677 test -d "$sysroot" || die "No valid sysroot specified."
2679 _ident=$($_cc --vsn | head -n1)
2680 armcc_conf="$PWD/armcc.conf"
2681 $_cc --arm_linux_configure \
2682 --arm_linux_config_file="$armcc_conf" \
2683 --configure_sysroot="$sysroot" \
2684 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2685 die "Error creating armcc configuration file."
2686 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2687 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2688 as_default="${cross_prefix}gcc"
2692 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2694 _ident=$($_cc -version | head -n1 | tr -s ' ')
2695 _flags='--gcc --abi=eabi -me'
2698 _depflags='-ppa -ppd=$(@:.o=.d)'
2699 _cflags_speed='-O3 -mf=5'
2700 _cflags_size='-O3 -mf=2'
2701 _flags_filter=tms470_flags
2702 elif $_cc -v 2>&1 | grep -q clang; then
2704 _ident=$($_cc --version | head -n1)
2705 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2708 elif $_cc -V 2>&1 | grep -q Sun; then
2710 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2711 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2712 _DEPFLAGS='-xM1 -xc99'
2715 _cflags_size='-O5 -xspace'
2716 _flags_filter=suncc_flags
2717 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2719 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2720 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2723 _flags_filter='filter_out -Wdisabled-optimization'
2724 elif $_cc -v 2>&1 | grep -q Open64; then
2726 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2727 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2730 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2731 elif $_cc -V 2>&1 | grep -q Portland; then
2733 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2734 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2735 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2736 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2738 _flags_filter=pgi_flags
2739 elif $_cc 2>&1 | grep -q Microsoft; then
2741 _ident=$($cc 2>&1 | head -n1)
2742 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2743 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2746 if $_cc 2>&1 | grep -q Linker; then
2753 _flags_filter=msvc_flags
2755 _ld_path='-libpath:'
2757 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2758 if [ $pfx = hostcc ]; then
2759 append _cflags -Dsnprintf=_snprintf
2761 elif $_cc 2>&1 | grep -q Intel; then
2763 _ident=$($cc 2>&1 | head -n1)
2764 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2765 # Not only is O3 broken on 13.x+ but it is slower on all previous
2766 # versions (tested) as well.
2768 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2769 if $_cc 2>&1 | grep -q Linker; then
2776 _flags_filter=icl_flags
2778 _ld_path='-libpath:'
2779 # -Qdiag-error to make icl error when seeing certain unknown arguments
2780 _flags='-nologo -Qdiag-error:4044,10157'
2781 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2782 # with MSVC which enables it by default.
2783 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2784 if [ $pfx = hostcc ]; then
2785 append _cflags -Dsnprintf=_snprintf
2787 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2789 _ident=$($_cc --version | head -n1)
2793 _flags_filter=cparser_flags
2796 eval ${pfx}_type=\$_type
2797 eval ${pfx}_ident=\$_ident
2801 eval ${1}_C=\${_cc_c-\${${1}_C}}
2802 eval ${1}_E=\${_cc_e-\${${1}_E}}
2803 eval ${1}_O=\${_cc_o-\${${1}_O}}
2805 if [ -n "$_depflags" ]; then
2806 eval ${1}_DEPFLAGS=\$_depflags
2808 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2809 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2810 eval DEP${1}FLAGS=\$_flags
2815 cflags_filter=$_flags_filter
2816 cflags_speed=$_cflags_speed
2817 cflags_size=$_cflags_size
2818 cflags_noopt=$_cflags_noopt
2819 add_cflags $_flags $_cflags
2820 cc_ldflags=$_ldflags
2823 probe_cc hostcc "$host_cc"
2824 host_cflags_filter=$_flags_filter
2825 add_host_cflags $_flags $_cflags
2828 test -n "$cc_type" && enable $cc_type ||
2829 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2831 : ${as_default:=$cc}
2832 : ${dep_cc_default:=$cc}
2833 : ${ld_default:=$cc}
2834 : ${host_ld_default:=$host_cc}
2835 set_default ar as dep_cc ld host_ld
2838 asflags_filter=$_flags_filter
2839 add_asflags $_flags $_cflags
2843 ldflags_filter=$_flags_filter
2844 add_ldflags $_flags $_ldflags
2845 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2847 LD_LIB=${_ld_lib-$LD_LIB}
2848 LD_PATH=${_ld_path-$LD_PATH}
2850 probe_cc hostld "$host_ld"
2851 host_ldflags_filter=$_flags_filter
2852 add_host_ldflags $_flags $_ldflags
2853 HOSTLD_O=${_ld_o-$HOSTLD_O}
2855 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2856 probe_cc depcc "$dep_cc"
2857 CCDEP=${_DEPCMD:-$DEPCMD}
2858 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2862 if $ar 2>&1 | grep -q Microsoft; then
2865 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2868 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2869 arflags='-Xany -r -c'
2876 add_cflags $extra_cflags
2877 add_asflags $extra_cflags
2879 if test -n "$sysroot"; then
2882 add_cppflags --sysroot="$sysroot"
2883 add_ldflags --sysroot="$sysroot"
2886 add_cppflags -I"$sysinclude"
2887 add_ldflags --sysroot="$sysroot"
2892 if test "$cpu" = host; then
2893 enabled cross_compile &&
2894 die "--cpu=host makes no sense when cross-compiling."
2899 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2901 s/.*$1=\\([^ ]*\\).*/\\1/
2906 cpu=$(check_native -march || check_native -mcpu)
2910 test "${cpu:-host}" = host &&
2911 die "--cpu=host not supported with compiler $cc"
2914 # Deal with common $arch aliases
2928 "Power Macintosh"|ppc*|powerpc*)
2943 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2948 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2951 # Add processor-specific flags
2952 if enabled aarch64; then
2956 cpuflags="-march=$cpu"
2959 cpuflags="-mcpu=$cpu"
2963 elif enabled alpha; then
2965 cpuflags="-mcpu=$cpu"
2967 elif enabled arm; then
2970 check_cpp_condition stddef.h \
2971 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2976 if check_arm_arch 4; then echo armv4;
2977 elif check_arm_arch 4T; then echo armv4t;
2978 elif check_arm_arch 5; then echo armv5;
2979 elif check_arm_arch 5E; then echo armv5e;
2980 elif check_arm_arch 5T; then echo armv5t;
2981 elif check_arm_arch 5TE; then echo armv5te;
2982 elif check_arm_arch 5TEJ; then echo armv5te;
2983 elif check_arm_arch 6; then echo armv6;
2984 elif check_arm_arch 6J; then echo armv6j;
2985 elif check_arm_arch 6K; then echo armv6k;
2986 elif check_arm_arch 6Z; then echo armv6z;
2987 elif check_arm_arch 6ZK; then echo armv6zk;
2988 elif check_arm_arch 6T2; then echo armv6t2;
2989 elif check_arm_arch 7; then echo armv7;
2990 elif check_arm_arch 7A 7_A; then echo armv7-a;
2991 elif check_arm_arch 7R 7_R; then echo armv7-r;
2992 elif check_arm_arch 7M 7_M; then echo armv7-m;
2993 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2994 elif check_arm_arch 8A 8_A; then echo armv8-a;
2998 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3002 cpuflags="-march=$cpu"
3003 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3006 cpuflags="-mcpu=$cpu"
3008 cortex-a*) subarch=armv7a ;;
3009 cortex-r*) subarch=armv7r ;;
3010 cortex-m*) enable thumb; subarch=armv7m ;;
3011 arm11*) subarch=armv6 ;;
3012 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3013 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3014 *) subarch=$(probe_arm_arch) ;;
3020 armv5t*) enable fast_clz ;;
3021 armv[6-8]*) enable fast_clz fast_unaligned ;;
3024 elif enabled avr32; then
3029 cpuflags="-mpart=$cpu"
3033 cpuflags="-march=$cpu"
3037 cpuflags="-mcpu=$cpu"
3041 cpuflags="-march=$cpu"
3045 elif enabled bfin; then
3047 cpuflags="-mcpu=$cpu"
3049 elif enabled mips; then
3051 cpuflags="-march=$cpu"
3053 elif enabled ppc; then
3055 case $(tolower $cpu) in
3056 601|ppc601|powerpc601)
3057 cpuflags="-mcpu=601"
3060 603*|ppc603*|powerpc603*)
3061 cpuflags="-mcpu=603"
3064 604*|ppc604*|powerpc604*)
3065 cpuflags="-mcpu=604"
3068 g3|75*|ppc75*|powerpc75*)
3069 cpuflags="-mcpu=750"
3072 g4|745*|ppc745*|powerpc745*)
3073 cpuflags="-mcpu=7450"
3075 74*|ppc74*|powerpc74*)
3076 cpuflags="-mcpu=7400"
3078 g5|970|ppc970|powerpc970)
3079 cpuflags="-mcpu=970"
3082 cpuflags="-mcpu=$cpu"
3085 cpuflags="-mcpu=cell"
3089 cpuflags="-mcpu=e500mc"
3093 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3097 cpuflags="-mcpu=8540 -mhard-float"
3102 elif enabled sparc; then
3105 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3106 cpuflags="-mcpu=$cpu"
3109 ultrasparc*|niagara[234])
3110 cpuflags="-mcpu=$cpu"
3114 elif enabled x86; then
3118 cpuflags="-march=$cpu"
3121 # targets that do NOT support nopl and conditional mov (cmov)
3122 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3123 cpuflags="-march=$cpu"
3126 # targets that do support nopl and conditional mov (cmov)
3127 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*)
3128 cpuflags="-march=$cpu"
3132 # targets that do support conditional mov but on which it's slow
3133 pentium4|pentium4m|prescott|nocona)
3134 cpuflags="-march=$cpu"
3142 if [ "$cpu" != generic ]; then
3143 add_cflags $cpuflags
3144 add_asflags $cpuflags
3147 # compiler sanity check
3149 int main(void){ return 0; }
3151 if test "$?" != 0; then
3152 echo "$cc is unable to create an executable file."
3153 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3154 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3155 echo "Only do this if you know what cross compiling means."
3157 die "C compiler test failed."
3160 add_cppflags -D_ISOC99_SOURCE
3161 check_cflags -std=c99
3162 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3165 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3169 add_host_cppflags -D_ISOC99_SOURCE
3170 check_host_cflags -std=c99
3171 check_host_cflags -Wall
3172 check_host_cflags -O3
3178 check_code cc "" "int test[2*($expr) - 1]" &&
3179 subarch=$arch64 || subarch=$arch32
3187 check_64bit mips mips64 '_MIPS_SIM > 1'
3191 check_64bit parisc parisc64 'sizeof(void *) > 4'
3195 check_64bit ppc ppc64 'sizeof(void *) > 4'
3199 check_64bit sparc sparc64 'sizeof(void *) > 4'
3203 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3204 if test "$subarch" = "x86_64"; then
3211 enabled spic && enable_weak pic
3217 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3218 enabled shared && add_ldflags -Wl,-brtl
3221 prefix_default="/boot/common"
3222 network_extralibs="-lnetwork"
3226 SHFLAGS='-shared -Wl,-h,$$(@F)'
3227 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3228 network_extralibs="-lsocket -lnsl"
3229 # When using suncc to build, the Solaris linker will mark
3230 # an executable with each instruction set encountered by
3231 # the Solaris assembler. As our libraries contain their own
3232 # guards for processor-specific code, instead suppress
3233 # generation of the HWCAPS ELF section on Solaris x86 only.
3234 enabled_all suncc x86 &&
3235 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3236 add_ldflags -Wl,-M,mapfile
3237 nm_default='nm -P -g'
3241 oss_indev_extralibs="-lossaudio"
3242 oss_outdev_extralibs="-lossaudio"
3247 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3249 oss_indev_extralibs="-lossaudio"
3250 oss_outdev_extralibs="-lossaudio"
3258 add_extralibs -lpoll -lgnugetopt
3261 gas="gas-preprocessor.pl $cc"
3262 enabled ppc && add_asflags -force_cpusubtype_ALL
3263 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3264 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3265 add_ldflags -Wl,-dynamic,-search_paths_first
3267 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3268 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3270 enabled x86_64 && objformat="macho64"
3271 enabled_any pic shared ||
3272 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3275 if test $target_os = "mingw32ce"; then
3281 if enabled x86_64; then
3282 LIBTARGET="i386:x86-64"
3283 elif enabled arm; then
3286 check_ldflags -Wl,--nxcompat
3287 check_ldflags -Wl,--dynamicbase
3288 shlibdir_default="$bindir_default"
3291 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3292 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3293 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3294 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3296 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3297 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3298 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3300 dlltool="${cross_prefix}dlltool"
3306 if enabled shared; then
3307 # Link to the import library instead of the normal static library
3310 # Cannot build both shared and static libs with MSVC or icl.
3313 shlibdir_default="$bindir_default"
3316 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3317 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3318 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3319 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3321 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3322 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3323 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3330 shlibdir_default="$bindir_default"
3333 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3334 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3335 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3337 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3338 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3342 *-dos|freedos|opendos)
3343 network_extralibs="-lsocket"
3346 add_cppflags -U__STRICT_ANSI__
3353 ranlib="echo ignoring ranlib"
3358 add_cppflags -D_GNU_SOURCE
3359 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3360 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3364 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3365 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3366 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3367 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3368 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3369 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3370 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3371 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3372 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3373 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3374 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3378 add_cppflags -D_BSD_SOURCE
3383 add_cppflags -D_QNX_SOURCE
3384 network_extralibs="-lsocket"
3389 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3390 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3391 add_ldflags -Wl,--target1-abs,--no-undefined \
3392 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3393 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3394 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3395 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3396 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3399 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3404 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3405 -D_REENTRANT_SOURCE \
3406 -D_RESEARCH_SOURCE \
3409 add_compat strtod.o strtod=avpriv_strtod
3410 network_extralibs='-lbsd'
3411 exeobjs=compat/plan9/main.o
3418 die "Unknown OS '$target_os'."
3422 # determine libc flavour
3427 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3428 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3429 eval ${pfx}libc_type=uclibc
3430 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3431 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3432 eval ${pfx}libc_type=glibc
3433 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3434 # MinGW headers can be installed on Cygwin, so check for newlib first.
3435 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3436 eval ${pfx}libc_type=newlib
3437 add_${pfx}cppflags -U__STRICT_ANSI__
3438 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3439 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3440 eval ${pfx}libc_type=mingw64
3441 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3442 eval test \$${pfx_no_}cc_type = "gcc" &&
3443 add_${pfx}cppflags -D__printf__=__gnu_printf__
3444 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3445 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3446 eval ${pfx}libc_type=mingw32
3447 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3448 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3449 die "ERROR: MinGW32 runtime version must be >= 3.15."
3450 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3451 eval test \$${pfx_no_}cc_type = "gcc" &&
3452 add_${pfx}cppflags -D__printf__=__gnu_printf__
3453 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3454 eval ${pfx}libc_type=msvcrt
3455 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3456 # 0x601 by default unless something else is set by the user.
3457 # This can easily lead to us detecting functions only present
3458 # in such new versions and producing binaries requiring windows 7.0.
3459 # Therefore explicitly set the default to XP unless the user has
3460 # set something else on the command line.
3461 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3462 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3463 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3464 eval ${pfx}libc_type=klibc
3465 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3466 eval ${pfx}libc_type=bionic
3467 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3468 eval ${pfx}libc_type=solaris
3469 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3474 test -n "$libc_type" && enable libc_$libc_type
3476 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3480 add_compat strtod.o strtod=avpriv_strtod
3483 add_compat strtod.o strtod=avpriv_strtod
3484 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3485 _snprintf=avpriv_snprintf \
3486 vsnprintf=avpriv_vsnprintf
3490 # hacks for compiler/libc/os combinations
3492 if enabled_all tms470 libc_glibc; then
3493 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3494 add_cppflags -D__USER_LABEL_PREFIX__=
3495 add_cppflags -D__builtin_memset=memset
3496 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3497 add_cflags -pds=48 # incompatible redefinition of macro
3500 if enabled_all ccc libc_glibc; then
3501 add_ldflags -Wl,-z,now # calls to libots crash without this
3505 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3508 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3510 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3512 set_default $PATHS_LIST
3515 # we need to build at least one lib type
3516 if ! enabled_any static shared; then
3518 At least one library type must be built.
3519 Specify --enable-static to build the static libraries or --enable-shared to
3520 build the shared libraries as well. To only build the shared libraries specify
3521 --disable-static in addition to --enable-shared.
3526 die_license_disabled() {
3527 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3530 die_license_disabled gpl libcdio
3531 die_license_disabled gpl libx264
3532 die_license_disabled gpl libxavs
3533 die_license_disabled gpl libxvid
3534 die_license_disabled gpl x11grab
3536 die_license_disabled nonfree libfaac
3537 die_license_disabled nonfree libfdk_aac
3538 die_license_disabled nonfree openssl
3540 die_license_disabled version3 libopencore_amrnb
3541 die_license_disabled version3 libopencore_amrwb
3542 die_license_disabled version3 libvo_aacenc
3543 die_license_disabled version3 libvo_amrwbenc
3545 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3547 disabled optimizations || check_cflags -fomit-frame-pointer
3550 disabled pic && return
3553 case "$target_os" in
3563 enabled pic && enable_weak_pic
3565 check_cc <<EOF || die "Symbol mangling check failed."
3568 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3569 extern_prefix=${sym%%ff_extern*}
3571 check_cc <<EOF && enable_weak inline_asm
3572 void foo(void) { __asm__ volatile ("" ::); }
3576 for restrict_keyword in restrict __restrict__ __restrict; do
3577 check_cc <<EOF && _restrict=$restrict_keyword && break
3578 void foo(char * $restrict_keyword p);
3582 check_cc <<EOF && enable pragma_deprecated
3583 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3586 check_cc <<EOF && enable attribute_packed
3587 struct { int x; } __attribute__((packed)) x;
3590 check_cc <<EOF && enable attribute_may_alias
3591 union { int x; } __attribute__((may_alias)) x;
3594 check_cc <<EOF || die "endian test failed"
3595 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3597 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3599 check_inline_asm inline_asm_labels '"1:\n"'
3601 if enabled aarch64; then
3602 # internal assembler in clang 3.3 does not support this instruction
3603 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3604 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3606 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3608 elif enabled alpha; then
3612 elif enabled arm; then
3614 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3615 enabled thumb && check_cflags -mthumb || check_cflags -marm
3618 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3620 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3621 case "${cross_prefix:-$cc}" in
3622 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3623 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3624 __asm__ (".eabi_attribute 28, 1");
3625 int main(void) { return 0; }
3628 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3631 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3632 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3633 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3634 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3635 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3636 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3638 [ $target_os = linux ] ||
3639 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3642 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3643 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3645 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3647 elif enabled mips; then
3649 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3651 elif enabled parisc; then
3653 if enabled gcc; then
3654 case $($cc -dumpversion) in
3655 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3659 elif enabled ppc; then
3661 enable local_aligned_8 local_aligned_16
3663 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3664 check_inline_asm ibm_asm '"add 0, 0, 0"'
3665 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3666 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3668 # AltiVec flags: The FSF version of GCC differs from the Apple version
3669 if enabled altivec; then
3671 check_cflags -maltivec -mabi=altivec &&
3672 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3673 check_cflags -faltivec
3675 # check if our compiler supports Motorola AltiVec C API
3676 check_cc <<EOF || disable altivec
3679 vector signed int v1 = (vector signed int) { 0 };
3680 vector signed int v2 = (vector signed int) { 1 };
3681 v1 = vec_add(v1, v2);
3686 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3689 elif enabled sparc; then
3691 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3693 elif enabled x86; then
3695 check_builtin rdtsc intrin.h "__rdtsc()"
3696 check_builtin mm_empty mmintrin.h "_mm_empty()"
3698 enable local_aligned_8 local_aligned_16
3700 # check whether EBP is available on x86
3701 # As 'i' is stored on the stack, this program will crash
3702 # if the base pointer is used to access it because the
3703 # base pointer is cleared in the inline assembly code.
3704 check_exec_crash <<EOF && enable ebp_available
3706 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3710 # check whether EBX is available on x86
3711 check_inline_asm ebx_available '""::"b"(0)' &&
3712 check_inline_asm ebx_available '"":::"%ebx"'
3714 # check whether xmm clobbers are supported
3715 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3717 # check whether binutils is new enough to compile SSSE3/MMXEXT
3718 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3719 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3721 if ! disabled_any asm mmx yasm; then
3722 if check_cmd $yasmexe --version; then
3723 enabled x86_64 && yasm_extra="-m amd64"
3724 yasm_debug="-g dwarf2"
3725 elif check_cmd nasm -v; then
3727 yasm_debug="-g -F dwarf"
3728 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3731 YASMFLAGS="-f $objformat $yasm_extra"
3732 enabled pic && append YASMFLAGS "-DPIC"
3733 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3734 case "$objformat" in
3735 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3738 check_yasm "movbe ecx, [5]" && enable yasm ||
3739 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3740 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3741 check_yasm "CPU amdnop" && enable cpunop
3745 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3752 if enabled asm; then
3754 check_as <<EOF && enable gnu_as || \
3755 $nogas "GNU assembler not found, install gas-preprocessor"
3763 check_ldflags -Wl,--as-needed
3765 if check_func dlopen; then
3767 elif check_func dlopen -ldl; then
3771 if ! disabled network; then
3772 check_type "sys/types.h sys/socket.h" socklen_t
3773 check_type netdb.h "struct addrinfo"
3774 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3775 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3776 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3777 check_type netinet/in.h "struct sockaddr_in6"
3778 check_type poll.h "struct pollfd"
3779 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3780 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3781 check_type netinet/sctp.h "struct sctp_event_subscribe"
3782 check_func getaddrinfo $network_extralibs
3783 check_func getservbyport $network_extralibs
3784 # Prefer arpa/inet.h over winsock2
3785 if check_header arpa/inet.h ; then
3786 check_func closesocket
3787 elif check_header winsock2.h ; then
3788 check_func_headers winsock2.h closesocket -lws2 &&
3789 network_extralibs="-lws2" ||
3790 { check_func_headers winsock2.h closesocket -lws2_32 &&
3791 network_extralibs="-lws2_32"; } || disable winsock2_h network
3792 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3793 check_type ws2tcpip.h socklen_t
3794 check_type ws2tcpip.h "struct addrinfo"
3795 check_type ws2tcpip.h "struct group_source_req"
3796 check_type ws2tcpip.h "struct ip_mreq_source"
3797 check_type ws2tcpip.h "struct ipv6_mreq"
3798 check_type winsock2.h "struct pollfd"
3799 check_type ws2tcpip.h "struct sockaddr_in6"
3800 check_type ws2tcpip.h "struct sockaddr_storage"
3801 check_struct winsock2.h "struct sockaddr" sa_len
3807 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3808 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3812 check_func_headers stdlib.h getenv
3813 check_func gethrtime
3815 check_func getrusage
3816 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3817 check_func gettimeofday
3818 check_func inet_aton $network_extralibs
3820 check_func localtime_r
3821 check_func ${malloc_prefix}memalign && enable memalign
3825 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3826 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3827 check_func setrlimit
3828 check_func strerror_r
3831 check_func sched_getaffinity
3832 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3833 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3834 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3835 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3839 check_func_headers io.h setmode
3840 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3841 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3842 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3843 check_func_headers windows.h GetProcessAffinityMask
3844 check_func_headers windows.h GetProcessTimes
3845 check_func_headers windows.h GetSystemTimeAsFileTime
3846 check_func_headers windows.h MapViewOfFile
3847 check_func_headers windows.h SetConsoleTextAttribute
3848 check_func_headers windows.h Sleep
3849 check_func_headers windows.h VirtualAlloc
3851 check_header direct.h
3852 check_header dlfcn.h
3854 check_header dxva2api.h
3856 check_header malloc.h
3858 check_header sys/mman.h
3859 check_header sys/param.h
3860 check_header sys/resource.h
3861 check_header sys/select.h
3862 check_header sys/time.h
3863 check_header sys/un.h
3864 check_header unistd.h
3865 check_header vdpau/vdpau.h
3866 check_header vdpau/vdpau_x11.h
3867 check_header VideoDecodeAcceleration/VDADecoder.h
3868 check_header windows.h
3869 check_header X11/extensions/XvMClib.h
3871 if ! disabled w32threads && ! enabled pthreads; then
3872 check_func_headers "windows.h process.h" _beginthreadex &&
3873 enable w32threads || disable w32threads
3876 # check for some common methods of building with pthread support
3877 # do this before the optional library checks as some of them require pthreads
3878 if ! disabled pthreads && ! enabled w32threads; then
3880 if check_func pthread_join -pthread; then
3882 add_extralibs -pthread
3883 elif check_func pthread_join -pthreads; then
3884 add_cflags -pthreads
3885 add_extralibs -pthreads
3886 elif check_func pthread_join -lpthreadGC2; then
3887 add_extralibs -lpthreadGC2
3888 elif check_lib pthread.h pthread_join -lpthread; then
3890 elif ! check_func pthread_join; then
3895 for thread in $THREADS_LIST; do
3896 if enabled $thread; then
3897 test -n "$thread_type" &&
3898 die "ERROR: Only one thread type must be selected." ||
3899 thread_type="$thread"
3903 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3904 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3906 check_lib math.h sin -lm && LIBM="-lm"
3907 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3913 for func in $MATH_FUNCS; do
3914 eval check_mathfunc $func \${${func}_args:-1}
3917 # these are off by default, so fail if requested and not available
3918 enabled avisynth && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
3919 { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
3920 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
3921 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3922 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3923 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3924 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3925 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
3926 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3927 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3928 done || die "ERROR: libgsm not found"; }
3929 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3930 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3931 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3932 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3933 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3934 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3935 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3936 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3937 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3938 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3939 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3940 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3941 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3942 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3943 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3945 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3946 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3947 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3948 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3949 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3950 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3951 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
3952 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
3953 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3954 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3955 die "ERROR: libx264 version must be >= 0.118."; }
3956 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3957 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3958 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3959 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3960 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3961 die "ERROR: openssl not found"; }
3963 if enabled gnutls; then
3964 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3965 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3969 if enabled libdc1394; then
3970 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3971 enable libdc1394_2; } ||
3972 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3973 enable libdc1394_1; } ||
3974 die "ERROR: No version of libdc1394 found "
3977 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3978 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3979 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3983 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3984 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3986 check_header linux/fb.h
3987 check_header linux/videodev2.h
3988 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3990 check_header sys/videoio.h
3992 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3993 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3994 # w32api 3.12 had it defined wrong
3995 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3997 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3998 { check_header dev/bktr/ioctl_meteor.h &&
3999 check_header dev/bktr/ioctl_bt848.h; } ||
4000 { check_header machine/ioctl_meteor.h &&
4001 check_header machine/ioctl_bt848.h; } ||
4002 { check_header dev/video/meteor/ioctl_meteor.h &&
4003 check_header dev/video/bktr/ioctl_bt848.h; } ||
4004 check_header dev/ic/bt8xx.h
4006 check_header sndio.h
4007 check_header sys/soundcard.h
4008 check_header soundcard.h
4010 enabled_any alsa_indev alsa_outdev &&
4011 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4013 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4014 check_func jack_port_get_latency_range -ljack
4016 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4018 if enabled libcdio; then
4019 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4020 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4023 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4026 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4027 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4028 { enabled xlib || die "ERROR: Xlib not found"; }
4031 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4034 enabled vdpau && enabled xlib &&
4035 check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4038 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4040 # add some useful compiler flags if supported
4041 check_cflags -Wdeclaration-after-statement
4043 check_cflags -Wdisabled-optimization
4044 check_cflags -Wpointer-arith
4045 check_cflags -Wredundant-decls
4046 check_cflags -Wcast-qual
4047 check_cflags -Wwrite-strings
4048 check_cflags -Wtype-limits
4049 check_cflags -Wundef
4050 check_cflags -Wmissing-prototypes
4051 check_cflags -Wstrict-prototypes
4052 enabled extra_warnings && check_cflags -Winline
4054 check_disable_warning(){
4055 warning_flag=-W${1#-Wno-}
4056 test_cflags $warning_flag && add_cflags $1
4059 check_disable_warning -Wno-parentheses
4060 check_disable_warning -Wno-switch
4061 check_disable_warning -Wno-format-zero-length
4062 check_disable_warning -Wno-pointer-sign
4064 # add some linker flags
4065 check_ldflags -Wl,--warn-common
4066 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4067 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4069 # add some strip flags
4070 # -wN '..@*' is more selective than -x, but not available everywhere.
4071 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4073 enabled neon_clobber_test &&
4074 check_ldflags -Wl,--wrap,avcodec_open2 \
4075 -Wl,--wrap,avcodec_decode_audio4 \
4076 -Wl,--wrap,avcodec_decode_video2 \
4077 -Wl,--wrap,avcodec_decode_subtitle2 \
4078 -Wl,--wrap,avcodec_encode_audio2 \
4079 -Wl,--wrap,avcodec_encode_video2 \
4080 -Wl,--wrap,avcodec_encode_subtitle \
4081 -Wl,--wrap,avresample_convert ||
4082 disable neon_clobber_test
4084 enabled xmm_clobber_test &&
4085 check_ldflags -Wl,--wrap,avcodec_open2 \
4086 -Wl,--wrap,avcodec_decode_audio4 \
4087 -Wl,--wrap,avcodec_decode_video2 \
4088 -Wl,--wrap,avcodec_decode_subtitle2 \
4089 -Wl,--wrap,avcodec_encode_audio2 \
4090 -Wl,--wrap,avcodec_encode_video2 \
4091 -Wl,--wrap,avcodec_encode_subtitle \
4092 -Wl,--wrap,avresample_convert \
4093 -Wl,--wrap,sws_scale ||
4094 disable xmm_clobber_test
4097 if test_ldflags -Wl,--version-script,$TMPV; then
4098 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4099 check_cc <<EOF && enable symver_asm_label
4100 void ff_foo(void) __asm__ ("av_foo@VERSION");
4101 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4103 check_cc <<EOF && enable symver_gnu_asm
4104 __asm__(".symver ff_foo,av_foo@VERSION");
4105 void ff_foo(void) {}
4109 if [ -z "$optflags" ]; then
4110 if enabled small; then
4111 optflags=$cflags_size
4112 elif enabled optimizations; then
4113 optflags=$cflags_speed
4115 optflags=$cflags_noopt
4121 enabled lto && check_ldflags "$@"
4125 if enabled lto; then
4126 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4128 check_ldflags -flto $cpuflags
4131 check_optflags $optflags
4132 check_optflags -fno-math-errno
4133 check_optflags -fno-signed-zeros
4135 if enabled icc; then
4136 # Just warnings, no remarks
4138 # -wd: Disable following warnings
4139 # 144, 167, 556: -Wno-pointer-sign
4140 # 1292: attribute "foo" ignored
4141 # 1419: external declaration in primary source file
4142 # 10006: ignoring unknown option -fno-signed-zeros
4143 # 10148: ignoring unknown option -Wno-parentheses
4144 # 10156: ignoring option '-W'; no argument required
4145 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4146 # 11030: Warning unknown option --as-needed
4147 # 10156: ignoring option '-export'; no argument required
4148 check_ldflags -wd10156,11030
4149 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4150 enable ebp_available
4151 if enabled x86_32; then
4152 icc_version=$($cc -dumpversion)
4153 test ${icc_version%%.*} -ge 11 &&
4154 check_cflags -falign-stack=maintain-16-byte ||
4155 disable aligned_stack
4157 elif enabled ccc; then
4158 # disable some annoying warnings
4159 add_cflags -msg_disable bitnotint
4160 add_cflags -msg_disable mixfuncvoid
4161 add_cflags -msg_disable nonstandcast
4162 add_cflags -msg_disable unsupieee
4163 elif enabled gcc; then
4164 check_optflags -fno-tree-vectorize
4165 check_cflags -Werror=implicit-function-declaration
4166 check_cflags -Werror=missing-prototypes
4167 check_cflags -Werror=return-type
4168 check_cflags -Werror=declaration-after-statement
4169 check_cflags -Werror=vla
4170 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4171 elif enabled llvm_gcc; then
4172 check_cflags -mllvm -stack-alignment=16
4173 elif enabled clang; then
4174 check_cflags -mllvm -stack-alignment=16
4175 check_cflags -Qunused-arguments
4176 check_cflags -Werror=implicit-function-declaration
4177 check_cflags -Werror=missing-prototypes
4178 check_cflags -Werror=return-type
4179 elif enabled cparser; then
4180 add_cflags -Wno-missing-variable-declarations
4181 add_cflags -Wno-empty-statement
4182 elif enabled armcc; then
4183 # 2523: use of inline assembler is deprecated
4184 add_cflags -W${armcc_opt},--diag_suppress=2523
4185 add_cflags -W${armcc_opt},--diag_suppress=1207
4186 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4187 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4188 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4189 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4190 elif enabled tms470; then
4191 add_cflags -pds=824 -pds=837
4193 elif enabled pathscale; then
4194 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4195 elif enabled_any msvc icl; then
4196 enabled x86_32 && disable aligned_stack
4197 enabled_all x86_32 debug && add_cflags -Oy-
4198 enabled debug && add_ldflags -debug
4199 enable pragma_deprecated
4200 if enabled icl; then
4201 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4202 # (correctly) on icl 13.x.
4203 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4204 add_cflags -Qansi-alias
4205 # icl will pass the inline asm tests but inline asm is currently
4206 # not supported (build will fail)
4213 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4216 add_cppflags -Dmain=plan9_main
4220 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4222 check_deps $CONFIG_LIST \
4227 ! enabled_any memalign posix_memalign aligned_malloc &&
4228 enabled_any $need_memalign && enable memalign_hack
4230 echo "install prefix $prefix"
4231 echo "source path $source_path"
4232 echo "C compiler $cc"
4233 echo "C library $libc_type"
4234 if test "$host_cc" != "$cc"; then
4235 echo "host C compiler $host_cc"
4236 echo "host C library $host_libc_type"
4238 echo "ARCH $arch ($cpu)"
4239 if test "$build_suffix" != ""; then
4240 echo "build suffix $build_suffix"
4242 if test "$extra_version" != ""; then
4243 echo "version string suffix $extra_version"
4245 echo "big-endian ${bigendian-no}"
4246 echo "runtime cpu detection ${runtime_cpudetect-no}"
4247 if enabled x86; then
4248 echo "${yasmexe} ${yasm-no}"
4249 echo "MMX enabled ${mmx-no}"
4250 echo "MMXEXT enabled ${mmxext-no}"
4251 echo "3DNow! enabled ${amd3dnow-no}"
4252 echo "3DNow! extended enabled ${amd3dnowext-no}"
4253 echo "SSE enabled ${sse-no}"
4254 echo "SSSE3 enabled ${ssse3-no}"
4255 echo "AVX enabled ${avx-no}"
4256 echo "FMA4 enabled ${fma4-no}"
4257 echo "i686 features enabled ${i686-no}"
4258 echo "CMOV is fast ${fast_cmov-no}"
4259 echo "EBX available ${ebx_available-no}"
4260 echo "EBP available ${ebp_available-no}"
4262 if enabled aarch64; then
4263 echo "NEON enabled ${neon-no}"
4264 echo "VFP enabled ${vfp-no}"
4266 if enabled arm; then
4267 echo "ARMv5TE enabled ${armv5te-no}"
4268 echo "ARMv6 enabled ${armv6-no}"
4269 echo "ARMv6T2 enabled ${armv6t2-no}"
4270 echo "VFP enabled ${vfp-no}"
4271 echo "NEON enabled ${neon-no}"
4273 if enabled ppc; then
4274 echo "AltiVec enabled ${altivec-no}"
4275 echo "PPC 4xx optimizations ${ppc4xx-no}"
4276 echo "dcbzl available ${dcbzl-no}"
4278 if enabled sparc; then
4279 echo "VIS enabled ${vis-no}"
4281 echo "debug symbols ${debug-no}"
4282 echo "optimize for size ${small-no}"
4283 echo "optimizations ${optimizations-no}"
4284 echo "static ${static-no}"
4285 echo "shared ${shared-no}"
4286 echo "new filter support ${avfilter-no}"
4287 echo "network support ${network-no}"
4288 echo "threading support ${thread_type-no}"
4289 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4290 echo "SDL support ${sdl-no}"
4291 test -n "$random_seed" &&
4292 echo "random seed ${random_seed}"
4295 echo "External libraries:"
4296 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4299 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4300 echo "Enabled ${type}s:"
4301 eval list=\$$(toupper $type)_LIST
4302 print_enabled '_*' $list | print_3_columns
4306 license="LGPL version 2.1 or later"
4307 if enabled nonfree; then
4308 license="nonfree and unredistributable"
4309 elif enabled gplv3; then
4310 license="GPL version 3 or later"
4311 elif enabled lgplv3; then
4312 license="LGPL version 3 or later"
4313 elif enabled gpl; then
4314 license="GPL version 2 or later"
4317 echo "License: $license"
4319 echo "Creating config.mak and config.h..."
4321 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4323 config_files="$TMPH config.mak"
4325 cat > config.mak <<EOF
4326 # Automatically generated by configure - do not modify!
4327 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4329 LIBDIR=\$(DESTDIR)$libdir
4330 SHLIBDIR=\$(DESTDIR)$shlibdir
4331 INCDIR=\$(DESTDIR)$incdir
4332 BINDIR=\$(DESTDIR)$bindir
4333 DATADIR=\$(DESTDIR)$datadir
4334 DOCDIR=\$(DESTDIR)$docdir
4335 MANDIR=\$(DESTDIR)$mandir
4336 SRC_PATH=$source_path
4343 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4345 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4367 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4368 STRIPFLAGS=$STRIPFLAGS
4369 YASMFLAGS=$YASMFLAGS
4370 BUILDSUF=$build_suffix
4378 EXTRA_VERSION=$extra_version
4380 CCDEP_FLAGS=$CCDEP_FLAGS
4382 ASDEP_FLAGS=$ASDEP_FLAGS
4383 CC_DEPFLAGS=$CC_DEPFLAGS
4384 AS_DEPFLAGS=$AS_DEPFLAGS
4387 HOSTCFLAGS=$host_cflags
4388 HOSTCPPFLAGS=$host_cppflags
4389 HOSTEXESUF=$HOSTEXESUF
4390 HOSTLDFLAGS=$host_ldflags
4393 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4394 HOSTCCDEP=$HOSTCCDEP
4395 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4396 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4400 TARGET_EXEC=$target_exec $target_exec_args
4401 TARGET_PATH=$target_path
4402 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4403 LIBS-avplay=$sdl_libs
4404 CFLAGS-avplay=$sdl_cflags
4405 ZLIB=$($ldflags_filter -lz)
4406 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4407 EXTRALIBS=$extralibs
4408 COMPAT_OBJS=$compat_objs
4411 LIBTARGET=${LIBTARGET}
4412 SLIBNAME=${SLIBNAME}
4413 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4414 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4415 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4416 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4417 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4418 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4419 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4420 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4421 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4426 name=$(toupper $lcname)
4427 file=$source_path/$lcname/version.h
4428 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4429 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4430 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4431 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4432 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4435 map 'get_version $v' $LIBRARY_LIST
4438 /* Automatically generated by configure - do not modify! */
4439 #ifndef LIBAV_CONFIG_H
4440 #define LIBAV_CONFIG_H
4441 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4442 #define LIBAV_LICENSE "$(c_escape $license)"
4443 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4444 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4445 #define restrict $_restrict
4446 #define EXTERN_PREFIX "${extern_prefix}"
4447 #define EXTERN_ASM ${extern_prefix}
4448 #define SLIBSUF "$SLIBSUF"
4451 test -n "$malloc_prefix" &&
4452 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4454 if enabled yasm; then
4455 append config_files $TMPASM
4459 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4461 print_config ARCH_ "$config_files" $ARCH_LIST
4462 print_config HAVE_ "$config_files" $HAVE_LIST
4463 print_config CONFIG_ "$config_files" $CONFIG_LIST \
4467 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4469 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4470 cp_if_changed $TMPH config.h
4473 enabled yasm && cp_if_changed $TMPASM config.asm
4476 /* Generated by ffconf */
4477 #ifndef AVUTIL_AVCONFIG_H
4478 #define AVUTIL_AVCONFIG_H
4481 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4483 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4485 cp_if_changed $TMPH libavutil/avconfig.h
4487 test -n "$WARNINGS" && printf "\n$WARNINGS"
4489 # build pkg-config files
4491 pkgconfig_generate(){
4493 shortname=${name#lib}${build_suffix}
4498 enabled ${name#lib} || return 0
4500 cat <<EOF > $name/$name.pc
4502 exec_prefix=\${prefix}
4507 Description: $comment
4509 Requires: $(enabled shared || echo $requires)
4510 Requires.private: $(enabled shared && echo $requires)
4512 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4513 Libs.private: $(enabled shared && echo $libs)
4514 Cflags: -I\${includedir}
4516 cat <<EOF > $name/$name-uninstalled.pc
4519 libdir=\${pcfiledir}
4520 includedir=${source_path}
4523 Description: $comment
4527 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4528 Cflags: -I\${includedir}
4532 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4533 enabled movie_filter && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4534 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4535 enabled scale_filter && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4537 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4538 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4539 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4540 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4541 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4542 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4543 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"