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"
1576 mmx_external_deps="yasm"
1577 mmx_inline_deps="inline_asm"
1578 mmx_suggest="mmx_external mmx_inline"
1580 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1581 eval dep=\$${ext}_deps
1582 eval ${ext}_external_deps='"${dep}_external"'
1583 eval ${ext}_inline_deps='"${dep}_inline"'
1584 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1587 aligned_stack_if_any="aarch64 ppc x86"
1588 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1589 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1590 fast_unaligned_if_any="aarch64 ppc x86"
1592 need_memalign="altivec neon sse"
1594 # system capabilities
1595 log2_deps="!libc_msvcrt"
1597 symver_if_any="symver_asm_label symver_gnu_asm"
1600 atomics_gcc_if="sync_val_compare_and_swap"
1601 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1602 atomics_win32_if="MemoryBarrier"
1603 atomics_native_if_any="$ATOMICS_LIST"
1604 threads_if_any="$THREADS_LIST"
1608 error_resilience_select="dsputil"
1609 lpc_select="dsputil"
1612 mpegaudio_select="mpegaudiodsp"
1613 mpegaudiodsp_select="dct"
1614 mpegvideo_select="dsputil hpeldsp videodsp"
1615 mpegvideoenc_select="mpegvideo"
1617 # decoders / encoders
1618 aac_decoder_select="mdct sinewin"
1619 aac_encoder_select="audio_frame_queue mdct sinewin"
1620 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1621 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1622 ac3_encoder_select="mdct ac3dsp dsputil"
1623 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1624 aic_decoder_select="dsputil golomb"
1625 alac_encoder_select="lpc"
1626 als_decoder_select="dsputil"
1627 amrnb_decoder_select="lsp"
1628 amrwb_decoder_select="lsp"
1629 amv_decoder_select="dsputil hpeldsp"
1630 ape_decoder_select="dsputil"
1631 asv1_decoder_select="dsputil"
1632 asv1_encoder_select="dsputil"
1633 asv2_decoder_select="dsputil"
1634 asv2_encoder_select="dsputil"
1635 atrac1_decoder_select="mdct sinewin"
1636 atrac3_decoder_select="mdct"
1637 atrac3p_decoder_select="mdct sinewin"
1638 bink_decoder_select="dsputil hpeldsp"
1639 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1640 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1641 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1642 cllc_decoder_select="dsputil"
1643 comfortnoise_encoder_select="lpc"
1644 cook_decoder_select="dsputil mdct sinewin"
1645 cscd_decoder_select="lzo"
1646 cscd_decoder_suggest="zlib"
1647 dca_decoder_select="mdct"
1648 dnxhd_decoder_select="dsputil"
1649 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1650 dvvideo_decoder_select="dsputil"
1651 dvvideo_encoder_select="dsputil"
1652 dxa_decoder_deps="zlib"
1653 eac3_decoder_select="ac3_decoder"
1654 eac3_encoder_select="ac3_encoder"
1655 eamad_decoder_select="aandcttables dsputil mpegvideo"
1656 eatgq_decoder_select="aandcttables dsputil"
1657 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1658 ffv1_decoder_select="dsputil golomb rangecoder"
1659 ffv1_encoder_select="dsputil rangecoder"
1660 ffvhuff_decoder_select="dsputil"
1661 ffvhuff_encoder_select="dsputil huffman"
1662 flac_decoder_select="golomb"
1663 flac_encoder_select="dsputil golomb lpc"
1664 flashsv_decoder_deps="zlib"
1665 flashsv_encoder_deps="zlib"
1666 flashsv2_decoder_deps="zlib"
1667 flv_decoder_select="h263_decoder"
1668 flv_encoder_select="h263_encoder"
1669 fourxm_decoder_select="dsputil"
1670 fraps_decoder_select="dsputil huffman"
1671 g2m_decoder_deps="zlib"
1672 g2m_decoder_select="dsputil"
1673 h261_decoder_select="error_resilience mpegvideo"
1674 h261_encoder_select="aandcttables mpegvideoenc"
1675 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1676 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1677 h263i_decoder_select="h263_decoder"
1678 h263p_encoder_select="h263_encoder"
1679 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1680 h264_decoder_suggest="error_resilience"
1681 hevc_decoder_select="dsputil golomb videodsp"
1682 huffyuv_decoder_select="dsputil"
1683 huffyuv_encoder_select="dsputil huffman"
1684 iac_decoder_select="dsputil fft mdct sinewin"
1685 imc_decoder_select="dsputil fft mdct sinewin"
1686 indeo3_decoder_select="hpeldsp"
1687 interplay_video_decoder_select="hpeldsp"
1688 jpegls_decoder_select="dsputil golomb hpeldsp"
1689 jpegls_encoder_select="golomb"
1690 jv_decoder_select="dsputil"
1691 lagarith_decoder_select="dsputil"
1692 ljpeg_encoder_select="aandcttables mpegvideoenc"
1693 loco_decoder_select="golomb"
1694 mdec_decoder_select="dsputil error_resilience mpegvideo"
1695 metasound_decoder_select="lsp mdct sinewin"
1696 mimic_decoder_select="dsputil hpeldsp"
1697 mjpeg_decoder_select="dsputil hpeldsp"
1698 mjpegb_decoder_select="dsputil hpeldsp"
1699 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1700 mlp_decoder_select="dsputil mlp_parser"
1701 motionpixels_decoder_select="dsputil"
1702 mp1_decoder_select="mpegaudio"
1703 mp1float_decoder_select="mpegaudio"
1704 mp2_decoder_select="mpegaudio"
1705 mp2float_decoder_select="mpegaudio"
1706 mp3_decoder_select="mpegaudio"
1707 mp3adu_decoder_select="mpegaudio"
1708 mp3adufloat_decoder_select="mpegaudio"
1709 mp3float_decoder_select="mpegaudio"
1710 mp3on4_decoder_select="mpegaudio"
1711 mp3on4float_decoder_select="mpegaudio"
1712 mpc7_decoder_select="dsputil mpegaudiodsp"
1713 mpc8_decoder_select="dsputil mpegaudiodsp"
1714 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1715 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1716 mpeg1video_decoder_select="error_resilience mpegvideo"
1717 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1718 mpeg2video_decoder_select="error_resilience mpegvideo"
1719 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1720 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1721 mpeg4_encoder_select="h263_encoder"
1722 msmpeg4v1_decoder_select="h263_decoder"
1723 msmpeg4v2_decoder_select="h263_decoder"
1724 msmpeg4v2_encoder_select="h263_encoder"
1725 msmpeg4v3_decoder_select="h263_decoder"
1726 msmpeg4v3_encoder_select="h263_encoder"
1727 mss2_decoder_select="error_resilience vc1_decoder"
1728 mxpeg_decoder_select="dsputil hpeldsp"
1729 nellymoser_decoder_select="mdct sinewin"
1730 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1731 nuv_decoder_select="dsputil lzo"
1732 png_decoder_deps="zlib"
1733 png_decoder_select="dsputil"
1734 png_encoder_deps="zlib"
1735 png_encoder_select="dsputil"
1736 prores_decoder_select="dsputil"
1737 prores_encoder_select="dsputil"
1738 qcelp_decoder_select="lsp"
1739 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1740 ra_144_encoder_select="audio_frame_queue lpc"
1741 ralf_decoder_select="golomb"
1742 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1743 rv10_encoder_select="h263_encoder"
1744 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1745 rv20_encoder_select="h263_encoder"
1746 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1747 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1748 shorten_decoder_select="golomb"
1749 sipr_decoder_select="lsp"
1750 sp5x_decoder_select="dsputil hpeldsp"
1751 svq1_decoder_select="hpeldsp"
1752 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1753 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1754 svq3_decoder_suggest="error_resilience zlib"
1755 tak_decoder_select="dsputil"
1756 theora_decoder_select="vp3_decoder"
1757 tiff_decoder_suggest="zlib"
1758 tiff_encoder_suggest="zlib"
1759 thp_decoder_select="dsputil hpeldsp"
1760 truehd_decoder_select="mlp_decoder"
1761 truemotion2_decoder_select="dsputil"
1762 truespeech_decoder_select="dsputil"
1763 tscc_decoder_deps="zlib"
1764 twinvq_decoder_select="mdct lsp sinewin"
1765 utvideo_decoder_select="dsputil"
1766 utvideo_encoder_select="dsputil huffman"
1767 vble_decoder_select="dsputil"
1768 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1769 vc1image_decoder_select="vc1_decoder"
1770 vorbis_decoder_select="mdct"
1771 vorbis_encoder_select="mdct"
1772 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1773 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1774 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1775 vp6a_decoder_select="vp6_decoder"
1776 vp6f_decoder_select="vp6_decoder"
1777 vp8_decoder_select="h264pred videodsp"
1778 vp9_decoder_select="videodsp"
1779 webp_decoder_select="vp8_decoder"
1780 wmapro_decoder_select="mdct sinewin"
1781 wmav1_decoder_select="mdct sinewin"
1782 wmav1_encoder_select="mdct sinewin"
1783 wmav2_decoder_select="mdct sinewin"
1784 wmav2_encoder_select="mdct sinewin"
1785 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1786 wmv1_decoder_select="h263_decoder"
1787 wmv1_encoder_select="h263_encoder"
1788 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1789 wmv2_encoder_select="h263_encoder"
1790 wmv3_decoder_select="vc1_decoder"
1791 wmv3image_decoder_select="wmv3_decoder"
1792 zerocodec_decoder_deps="zlib"
1793 zlib_decoder_deps="zlib"
1794 zlib_encoder_deps="zlib"
1795 zmbv_decoder_deps="zlib"
1796 zmbv_encoder_deps="zlib"
1798 # hardware accelerators
1799 dxva2_deps="dxva2api_h"
1800 vaapi_deps="va_va_h"
1801 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1802 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1803 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1805 h263_vaapi_hwaccel_deps="vaapi"
1806 h263_vaapi_hwaccel_select="h263_decoder"
1807 h263_vdpau_hwaccel_deps="vdpau"
1808 h263_vdpau_hwaccel_select="h263_decoder"
1809 h264_dxva2_hwaccel_deps="dxva2"
1810 h264_dxva2_hwaccel_select="h264_decoder"
1811 h264_vaapi_hwaccel_deps="vaapi"
1812 h264_vaapi_hwaccel_select="h264_decoder"
1813 h264_vda_hwaccel_deps="vda"
1814 h264_vda_hwaccel_select="h264_decoder"
1815 h264_vdpau_hwaccel_deps="vdpau"
1816 h264_vdpau_hwaccel_select="h264_decoder"
1817 mpeg1_vdpau_hwaccel_deps="vdpau"
1818 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1819 mpeg2_dxva2_hwaccel_deps="dxva2"
1820 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1821 mpeg2_vaapi_hwaccel_deps="vaapi"
1822 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1823 mpeg2_vdpau_hwaccel_deps="vdpau"
1824 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1825 mpeg4_vaapi_hwaccel_deps="vaapi"
1826 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1827 mpeg4_vdpau_hwaccel_deps="vdpau"
1828 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1829 vc1_dxva2_hwaccel_deps="dxva2"
1830 vc1_dxva2_hwaccel_select="vc1_decoder"
1831 vc1_vaapi_hwaccel_deps="vaapi"
1832 vc1_vaapi_hwaccel_select="vc1_decoder"
1833 vc1_vdpau_hwaccel_deps="vdpau"
1834 vc1_vdpau_hwaccel_select="vc1_decoder"
1835 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1836 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1837 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1840 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1841 mpeg4video_parser_select="error_resilience mpegvideo"
1842 mpegvideo_parser_select="error_resilience mpegvideo"
1843 vc1_parser_select="mpegvideo"
1845 # external libraries
1846 libfaac_encoder_deps="libfaac"
1847 libfaac_encoder_select="audio_frame_queue"
1848 libfdk_aac_decoder_deps="libfdk_aac"
1849 libfdk_aac_encoder_deps="libfdk_aac"
1850 libfdk_aac_encoder_select="audio_frame_queue"
1851 libgsm_decoder_deps="libgsm"
1852 libgsm_encoder_deps="libgsm"
1853 libgsm_ms_decoder_deps="libgsm"
1854 libgsm_ms_encoder_deps="libgsm"
1855 libilbc_decoder_deps="libilbc"
1856 libilbc_encoder_deps="libilbc"
1857 libmp3lame_encoder_deps="libmp3lame"
1858 libmp3lame_encoder_select="audio_frame_queue"
1859 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1860 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1861 libopencore_amrnb_encoder_select="audio_frame_queue"
1862 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1863 libopenjpeg_decoder_deps="libopenjpeg"
1864 libopenjpeg_encoder_deps="libopenjpeg"
1865 libopus_decoder_deps="libopus"
1866 libopus_encoder_deps="libopus"
1867 libopus_encoder_select="audio_frame_queue"
1868 libschroedinger_decoder_deps="libschroedinger"
1869 libschroedinger_encoder_deps="libschroedinger"
1870 libspeex_decoder_deps="libspeex"
1871 libspeex_encoder_deps="libspeex"
1872 libspeex_encoder_select="audio_frame_queue"
1873 libtheora_encoder_deps="libtheora"
1874 libvo_aacenc_encoder_deps="libvo_aacenc"
1875 libvo_aacenc_encoder_select="audio_frame_queue"
1876 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1877 libvorbis_encoder_deps="libvorbis"
1878 libvorbis_encoder_select="audio_frame_queue"
1879 libvpx_vp8_decoder_deps="libvpx"
1880 libvpx_vp8_encoder_deps="libvpx"
1881 libvpx_vp9_decoder_deps="libvpx"
1882 libvpx_vp9_encoder_deps="libvpx"
1883 libwavpack_encoder_deps="libwavpack"
1884 libwebp_encoder_deps="libwebp"
1885 libx264_encoder_deps="libx264"
1886 libxavs_encoder_deps="libxavs"
1887 libxvid_encoder_deps="libxvid"
1890 ac3_demuxer_select="ac3_parser"
1891 asf_demuxer_select="riffdec"
1892 asf_muxer_select="riffenc"
1893 asf_stream_muxer_select="asf_muxer"
1894 avi_demuxer_select="riffdec"
1895 avi_muxer_select="riffenc"
1896 avisynth_demuxer_deps="avisynth"
1897 avisynth_demuxer_select="riffdec"
1898 caf_demuxer_select="riffdec"
1899 dirac_demuxer_select="dirac_parser"
1900 dxa_demuxer_select="riffdec"
1901 eac3_demuxer_select="ac3_parser"
1902 f4v_muxer_select="mov_muxer"
1903 flac_demuxer_select="flac_parser"
1904 hds_muxer_select="flv_muxer"
1905 hls_muxer_select="mpegts_muxer"
1906 ipod_muxer_select="mov_muxer"
1907 ismv_muxer_select="mov_muxer"
1908 matroska_audio_muxer_select="matroska_muxer"
1909 matroska_demuxer_select="riffdec"
1910 matroska_demuxer_suggest="bzlib lzo zlib"
1911 matroska_muxer_select="riffenc"
1912 mmf_muxer_select="riffenc"
1913 mov_demuxer_select="riffdec"
1914 mov_demuxer_suggest="zlib"
1915 mov_muxer_select="riffenc rtpenc_chain"
1916 mp3_demuxer_select="mpegaudio_parser"
1917 mp4_muxer_select="mov_muxer"
1918 mpegts_muxer_select="adts_muxer latm_muxer"
1919 mpegtsraw_demuxer_select="mpegts_demuxer"
1920 mxf_d10_muxer_select="mxf_muxer"
1921 nut_muxer_select="riffenc"
1922 nuv_demuxer_select="riffdec"
1923 ogg_demuxer_select="golomb"
1924 psp_muxer_select="mov_muxer"
1925 rtp_demuxer_select="sdp_demuxer"
1926 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1927 rtsp_demuxer_select="http_protocol rtpdec"
1928 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1929 sap_demuxer_select="sdp_demuxer"
1930 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1931 sdp_demuxer_select="rtpdec"
1932 smoothstreaming_muxer_select="ismv_muxer"
1933 spdif_muxer_select="aac_parser"
1934 tak_demuxer_select="tak_parser"
1935 tg2_muxer_select="mov_muxer"
1936 tgp_muxer_select="mov_muxer"
1937 w64_demuxer_select="wav_demuxer"
1938 wav_demuxer_select="riffdec"
1939 wav_muxer_select="riffenc"
1940 webm_muxer_select="riffenc"
1941 wtv_demuxer_select="riffdec"
1942 xmv_demuxer_select="riffdec"
1943 xwma_demuxer_select="riffdec"
1946 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1947 alsa_outdev_deps="alsa_asoundlib_h"
1948 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1949 dv1394_indev_deps="dv1394"
1950 dv1394_indev_select="dv_demuxer"
1951 fbdev_indev_deps="linux_fb_h"
1952 jack_indev_deps="jack_jack_h pthreads"
1953 libcdio_indev_deps="libcdio"
1954 libdc1394_indev_deps="libdc1394"
1955 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1956 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1957 pulse_indev_deps="libpulse"
1958 sndio_indev_deps="sndio_h"
1959 sndio_outdev_deps="sndio_h"
1960 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1961 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1962 vfwcap_indev_extralibs="-lavicap32"
1963 x11grab_indev_deps="x11grab XShmCreateImage"
1966 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1967 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1968 ffrtmpcrypt_protocol_select="tcp_protocol"
1969 ffrtmphttp_protocol_deps="!librtmp_protocol"
1970 ffrtmphttp_protocol_select="http_protocol"
1971 gopher_protocol_select="network"
1972 httpproxy_protocol_select="tcp_protocol"
1973 http_protocol_select="tcp_protocol"
1974 https_protocol_select="tls_protocol"
1975 librtmp_protocol_deps="librtmp"
1976 librtmpe_protocol_deps="librtmp"
1977 librtmps_protocol_deps="librtmp"
1978 librtmpt_protocol_deps="librtmp"
1979 librtmpte_protocol_deps="librtmp"
1980 mmsh_protocol_select="http_protocol"
1981 mmst_protocol_select="network"
1982 rtmp_protocol_deps="!librtmp_protocol"
1983 rtmp_protocol_select="tcp_protocol"
1984 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1985 rtmps_protocol_deps="!librtmp_protocol"
1986 rtmps_protocol_select="tls_protocol"
1987 rtmpt_protocol_select="ffrtmphttp_protocol"
1988 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1989 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1990 rtp_protocol_select="udp_protocol"
1991 sctp_protocol_deps="struct_sctp_event_subscribe"
1992 sctp_protocol_select="network"
1993 srtp_protocol_select="rtp_protocol"
1994 tcp_protocol_select="network"
1995 tls_protocol_deps_any="openssl gnutls"
1996 tls_protocol_select="tcp_protocol"
1997 udp_protocol_select="network"
1998 unix_protocol_deps="sys_un_h"
1999 unix_protocol_select="network"
2002 blackframe_filter_deps="gpl"
2003 boxblur_filter_deps="gpl"
2004 cropdetect_filter_deps="gpl"
2005 delogo_filter_deps="gpl"
2006 drawtext_filter_deps="libfreetype"
2007 frei0r_filter_deps="frei0r dlopen strtok_r"
2008 frei0r_filter_extralibs='$ldl'
2009 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2010 frei0r_src_filter_extralibs='$ldl'
2011 hqdn3d_filter_deps="gpl"
2012 interlace_filter_deps="gpl"
2013 resample_filter_deps="avresample"
2014 ocv_filter_deps="libopencv"
2015 scale_filter_deps="swscale"
2018 output_example_deps="avcodec avformat avutil swscale"
2019 transcode_aac_example_deps="avcodec avformat avresample"
2022 avcodec_deps="avutil"
2023 avdevice_deps="avutil avcodec avformat"
2024 avfilter_deps="avutil"
2025 avformat_deps="avutil avcodec"
2026 avresample_deps="avutil"
2027 swscale_deps="avutil"
2030 avconv_deps="avcodec avfilter avformat avresample swscale"
2031 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2032 fps_filter null_filter resample_filter scale_filter
2033 setpts_filter trim_filter"
2034 avplay_deps="avcodec avformat avresample swscale sdl"
2035 avplay_select="rdft"
2036 avprobe_deps="avcodec avformat"
2037 avserver_deps="avformat fork !shared"
2038 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2039 avserver_extralibs='$ldl'
2043 texi2html_deps="doc"
2045 # default parameters
2047 logfile="config.log"
2049 # installation paths
2050 prefix_default="/usr/local"
2051 bindir_default='${prefix}/bin'
2052 datadir_default='${prefix}/share/avconv'
2053 docdir_default='${prefix}/share/doc/libav'
2054 incdir_default='${prefix}/include'
2055 libdir_default='${prefix}/lib'
2056 mandir_default='${prefix}/share/man'
2057 shlibdir_default="$libdir_default"
2062 host_cc_default="gcc"
2067 pkg_config_default=pkg-config
2075 arch_default=$(uname -m)
2079 target_os_default=$(tolower $(uname -s))
2080 host_os=$target_os_default
2082 # configurable options
2083 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2088 enable optimizations
2089 enable safe_bitstream_reader
2091 enable swscale_alpha
2093 # By default, enable only those hwaccels that have no external dependencies.
2097 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2100 FULLNAME='$(NAME)$(BUILDSUF)'
2101 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2104 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2105 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2106 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2107 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2108 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2109 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2129 host_cppflags='-D_ISOC99_SOURCE'
2131 host_cflags_filter=echo
2132 host_ldflags_filter=echo
2134 target_path='$(CURDIR)'
2136 # since the object filename is not given with the -MM flag, the compiler
2137 # is only able to print the basename, and we must add the path ourselves
2138 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2142 if test -f configure; then
2145 source_path=$(cd $(dirname "$0"); pwd)
2146 echo "$source_path" | grep -q '[[:blank:]]' &&
2147 die "Out of tree builds are impossible with whitespace in source path."
2148 test -e "$source_path/config.h" &&
2149 die "Out of tree builds are impossible with config.h in source dir."
2156 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2162 file=$source_path/$3
2163 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2166 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2167 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2168 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2169 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2170 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2171 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2172 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2173 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2174 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2175 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2176 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2192 for n in $COMPONENT_LIST; do
2193 v=$(toupper ${n%s})_LIST
2195 eval ${n}_if_any="\$$v"
2198 enable $ARCH_EXT_LIST
2201 echo "Unknown option \"$1\"."
2202 echo "See $0 --help for available options."
2207 cat | tr ' ' '\n' | sort | pr -r -3 -t
2213 echo $* | sed s/$suffix//g | print_3_columns
2225 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2226 echo "prob ${prob:-0.5}"
2234 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2235 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2245 add_extralibs $optval
2248 disable $INDEV_LIST $OUTDEV_LIST
2251 debuglevel="$optval"
2254 disable $PROGRAM_LIST
2256 --disable-everything)
2257 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2260 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2261 disable $LIBRARY_LIST $PROGRAM_LIST doc
2263 --enable-random|--disable-random)
2264 action=${opt%%-random}
2265 do_random ${action#--} $COMPONENT_LIST
2267 --enable-random=*|--disable-random=*)
2268 action=${opt%%-random=*}
2269 do_random ${action#--} $optval
2271 --enable-*=*|--disable-*=*)
2272 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2273 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2274 eval list=\$$(toupper $thing)_LIST
2275 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2276 $action $(filter "$name" $list)
2278 --enable-?*|--disable-?*)
2279 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2280 if is_in $option $COMPONENT_LIST; then
2281 test $action = disable && action=unset
2282 eval $action \$$(toupper ${option%s})_LIST
2283 elif is_in $option $CMDLINE_SELECT; then
2290 NAME="${opt#--list-}"
2291 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2293 eval show_list $NAME \$$(toupper $NAME)_LIST
2295 --help|-h) show_help
2298 optname="${opt%%=*}"
2299 optname="${optname#--}"
2300 optname=$(echo "$optname" | sed 's/-/_/g')
2301 if is_in $optname $CMDLINE_SET; then
2302 eval $optname='$optval'
2303 elif is_in $optname $CMDLINE_APPEND; then
2304 append $optname "$optval"
2312 disabled logging && logfile=/dev/null
2314 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2317 test -n "$cross_prefix" && enable cross_compile
2319 if enabled cross_compile; then
2320 test -n "$arch" && test -n "$target_os" ||
2321 die "Must specify target arch and OS when cross-compiling"
2324 ar_default="${cross_prefix}${ar_default}"
2325 cc_default="${cross_prefix}${cc_default}"
2326 nm_default="${cross_prefix}${nm_default}"
2327 pkg_config_default="${cross_prefix}${pkg_config_default}"
2328 ranlib="${cross_prefix}${ranlib}"
2329 strip="${cross_prefix}${strip}"
2331 sysinclude_default="${sysroot}/usr/include"
2333 case "$toolchain" in
2336 add_cflags -fsanitize=address
2337 add_ldflags -fsanitize=address
2341 add_cflags -fsanitize=thread -pie
2342 add_ldflags -fsanitize=thread -pie
2346 add_cflags -fsanitize=address
2347 add_ldflags -fsanitize=address
2351 add_cflags -fsanitize=thread -pie -fPIC
2352 add_ldflags -fsanitize=thread -pie -fPIC
2355 target_exec_default="valgrind"
2356 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2359 target_exec_default="valgrind"
2360 target_exec_args="--track-origins=yes --leak-check=full"
2363 # Check whether the current MSVC version needs the C99 converter.
2364 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2365 # support enough of C99 to build libav. Default to the new
2366 # behaviour if the regexp was unable to match anything, since this
2367 # successfully parses the version number of existing supported
2368 # versions that require the converter (MSVC 2010 and 2012).
2369 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2370 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2373 cc_default="c99wrap cl"
2376 nm_default="dumpbin -symbols"
2378 target_os_default="win32"
2379 # Use a relative path for TMPDIR. This makes sure all the
2380 # ffconf temp files are written with a relative path, avoiding
2381 # issues with msys/win32 path conversion for MSVC parameters
2382 # such as -Fo<file> or -out:<file>.
2388 nm_default="dumpbin -symbols"
2390 target_os_default="win32"
2394 add_cflags -fprofile-arcs -ftest-coverage
2395 add_ldflags -fprofile-arcs -ftest-coverage
2398 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2399 add_ldflags -Wl,-z,relro -Wl,-z,now
2402 die "Unknown toolchain $toolchain"
2406 set_default arch cc pkg_config sysinclude target_exec target_os
2407 enabled cross_compile || host_cc_default=$cc
2410 if ! $pkg_config --version >/dev/null 2>&1; then
2411 warn "$pkg_config not found, library detection may fail."
2417 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2421 EXESUF=$(exesuf $target_os)
2422 HOSTEXESUF=$(exesuf $host_os)
2424 # set temporary file name
2425 : ${TMPDIR:=$TEMPDIR}
2429 if ! check_cmd mktemp -u XXXXXX; then
2430 # simple replacement for missing mktemp
2431 # NOT SAFE FOR GENERAL USE
2433 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2438 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2439 (set -C; exec > $tmp) 2>/dev/null ||
2440 die "Unable to create temporary file in $TMPDIR."
2441 append TMPFILES $tmp
2445 trap 'rm -f -- $TMPFILES' EXIT
2449 tmpfile TMPE $EXESUF
2460 # make sure we can execute files in $TMPDIR
2461 cat > $TMPSH 2>> $logfile <<EOF
2464 chmod +x $TMPSH >> $logfile 2>&1
2465 if ! $TMPSH >> $logfile 2>&1; then
2467 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2468 variable to another directory and make sure that it is not mounted noexec.
2470 die "Sanity test failed."
2476 -std=c99) echo -c99 ;;
2477 -mcpu=*) echo -arch ${flag#*=} ;;
2478 -mieee) echo -ieee ;;
2479 -O*|-fast) echo $flag ;;
2480 -fno-math-errno) echo -assume nomath_errno ;;
2482 -Wall) echo -msg_enable level2 ;;
2483 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2484 -Wl,*) echo $flag ;;
2494 -Wno-switch) echo -Wno-switch-enum ;;
2495 -Wno-format-zero-length) ;;
2496 -Wdisabled-optimization) ;;
2497 -Wno-pointer-sign) echo -Wno-other ;;
2503 msvc_common_flags(){
2506 # In addition to specifying certain flags under the compiler
2507 # specific filters, they must be specified here as well or else the
2508 # generic catch all at the bottom will print the original flag.
2512 -fomit-frame-pointer) ;;
2516 -fno-signed-zeros) ;;
2520 -lz) echo zlib.lib ;;
2521 -lavifil32) echo vfw32.lib ;;
2522 -lavicap32) echo vfw32.lib user32.lib ;;
2523 -l*) echo ${flag#-l}.lib ;;
2530 msvc_common_flags "$@"
2533 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2534 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2535 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2542 msvc_common_flags "$@"
2545 # Despite what Intel's documentation says -Wall, which is supported
2546 # on Windows, does enable remarks so disable them here.
2547 -Wall) echo $flag -Qdiag-disable:remark ;;
2548 -std=c99) echo -Qstd=c99 ;;
2556 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2557 -fomit-frame-pointer) echo -Mnoframe ;;
2568 case "${flag#*=}" in
2569 native) echo -xtarget=native ;;
2570 v9|niagara) echo -xarch=sparc ;;
2571 ultrasparc) echo -xarch=sparcvis ;;
2572 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2573 i586|pentium) echo -xchip=pentium ;;
2574 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2575 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2576 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2577 pentium4*) echo -xtarget=pentium4 ;;
2578 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2579 *-sse3) echo -xarch=sse3 ;;
2580 core2) echo -xarch=ssse3 -xchip=core2 ;;
2581 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2582 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2583 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2584 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2585 k8|opteron|athlon64|athlon-fx)
2586 echo -xarch=sse2a ;;
2587 athlon*) echo -xarch=pentium_proa ;;
2590 -std=c99) echo -xc99 ;;
2591 -fomit-frame-pointer) echo -xregs=frameptr ;;
2592 -fPIC) echo -KPIC -xcode=pic32 ;;
2593 -W*,*) echo $flag ;;
2594 -f*-*|-W*|-mimpure-text) ;;
2605 case "${flag#*=}" in
2606 armv7-a|cortex-a*) echo -mv=7a8 ;;
2607 armv7-r|cortex-r*) echo -mv=7r4 ;;
2608 armv7-m|cortex-m*) echo -mv=7m3 ;;
2609 armv6*|arm11*) echo -mv=6 ;;
2610 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2612 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2615 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2616 -mfpu=vfp) echo --float_support=vfpv2 ;;
2617 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2618 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2619 -msoft-float) echo --float_support=vfplib ;;
2620 -O[0-3]|-mf=*) echo $flag ;;
2622 -pds=*) echo $flag ;;
2623 -D*|-I*) echo $flag ;;
2624 --gcc|--abi=*) echo $flag ;;
2634 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2635 unset _ld_o _ldflags _ld_lib _ld_path
2636 unset _depflags _DEPCMD _DEPFLAGS
2639 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2641 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2642 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2643 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2646 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2648 gcc_version=$($_cc --version | head -n1)
2649 gcc_basever=$($_cc -dumpversion)
2650 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2651 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2652 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2653 if ! $_cc -dumpversion | grep -q '^2\.'; then
2654 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2658 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2660 _ident=$($_cc --version | head -n1)
2665 elif $_cc -v 2>&1 | grep -q xlc; then
2667 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2669 _cflags_size='-O5 -qcompact'
2670 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2672 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2674 _cflags_speed='-fast'
2676 _flags_filter=ccc_flags
2677 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2678 test -d "$sysroot" || die "No valid sysroot specified."
2680 _ident=$($_cc --vsn | head -n1)
2681 armcc_conf="$PWD/armcc.conf"
2682 $_cc --arm_linux_configure \
2683 --arm_linux_config_file="$armcc_conf" \
2684 --configure_sysroot="$sysroot" \
2685 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2686 die "Error creating armcc configuration file."
2687 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2688 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2689 as_default="${cross_prefix}gcc"
2693 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2695 _ident=$($_cc -version | head -n1 | tr -s ' ')
2696 _flags='--gcc --abi=eabi -me'
2699 _depflags='-ppa -ppd=$(@:.o=.d)'
2700 _cflags_speed='-O3 -mf=5'
2701 _cflags_size='-O3 -mf=2'
2702 _flags_filter=tms470_flags
2703 elif $_cc -v 2>&1 | grep -q clang; then
2705 _ident=$($_cc --version | head -n1)
2709 elif $_cc -V 2>&1 | grep -q Sun; then
2711 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2712 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2713 _DEPFLAGS='-xM1 -xc99'
2716 _cflags_size='-O5 -xspace'
2717 _flags_filter=suncc_flags
2718 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2720 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2721 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2724 _flags_filter='filter_out -Wdisabled-optimization'
2725 elif $_cc -v 2>&1 | grep -q Open64; then
2727 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2728 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2731 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2732 elif $_cc -V 2>&1 | grep -q Portland; then
2734 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2735 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2736 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2737 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2739 _flags_filter=pgi_flags
2740 elif $_cc 2>&1 | grep -q Microsoft; then
2742 _ident=$($cc 2>&1 | head -n1)
2743 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2744 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2747 if $_cc 2>&1 | grep -q Linker; then
2754 _flags_filter=msvc_flags
2756 _ld_path='-libpath:'
2758 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2759 if [ $pfx = hostcc ]; then
2760 append _cflags -Dsnprintf=_snprintf
2762 elif $_cc 2>&1 | grep -q Intel; then
2764 _ident=$($cc 2>&1 | head -n1)
2765 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2766 # Not only is O3 broken on 13.x+ but it is slower on all previous
2767 # versions (tested) as well.
2769 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2770 if $_cc 2>&1 | grep -q Linker; then
2777 _flags_filter=icl_flags
2779 _ld_path='-libpath:'
2780 # -Qdiag-error to make icl error when seeing certain unknown arguments
2781 _flags='-nologo -Qdiag-error:4044,10157'
2782 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2783 # with MSVC which enables it by default.
2784 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2785 if [ $pfx = hostcc ]; then
2786 append _cflags -Dsnprintf=_snprintf
2788 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2790 _ident=$($_cc --version | head -n1)
2794 _flags_filter=cparser_flags
2797 eval ${pfx}_type=\$_type
2798 eval ${pfx}_ident=\$_ident
2802 eval ${1}_C=\${_cc_c-\${${1}_C}}
2803 eval ${1}_E=\${_cc_e-\${${1}_E}}
2804 eval ${1}_O=\${_cc_o-\${${1}_O}}
2806 if [ -n "$_depflags" ]; then
2807 eval ${1}_DEPFLAGS=\$_depflags
2809 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2810 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2811 eval DEP${1}FLAGS=\$_flags
2816 cflags_filter=$_flags_filter
2817 cflags_speed=$_cflags_speed
2818 cflags_size=$_cflags_size
2819 cflags_noopt=$_cflags_noopt
2820 add_cflags $_flags $_cflags
2821 cc_ldflags=$_ldflags
2824 probe_cc hostcc "$host_cc"
2825 host_cflags_filter=$_flags_filter
2826 add_host_cflags $_flags $_cflags
2829 test -n "$cc_type" && enable $cc_type ||
2830 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2832 : ${as_default:=$cc}
2833 : ${dep_cc_default:=$cc}
2834 : ${ld_default:=$cc}
2835 : ${host_ld_default:=$host_cc}
2836 set_default ar as dep_cc ld host_ld
2839 asflags_filter=$_flags_filter
2840 add_asflags $_flags $_cflags
2844 ldflags_filter=$_flags_filter
2845 add_ldflags $_flags $_ldflags
2846 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2848 LD_LIB=${_ld_lib-$LD_LIB}
2849 LD_PATH=${_ld_path-$LD_PATH}
2851 probe_cc hostld "$host_ld"
2852 host_ldflags_filter=$_flags_filter
2853 add_host_ldflags $_flags $_ldflags
2854 HOSTLD_O=${_ld_o-$HOSTLD_O}
2856 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2857 probe_cc depcc "$dep_cc"
2858 CCDEP=${_DEPCMD:-$DEPCMD}
2859 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2863 if $ar 2>&1 | grep -q Microsoft; then
2866 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2869 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2870 arflags='-Xany -r -c'
2877 add_cflags $extra_cflags
2878 add_asflags $extra_cflags
2880 if test -n "$sysroot"; then
2883 add_cppflags --sysroot="$sysroot"
2884 add_ldflags --sysroot="$sysroot"
2887 add_cppflags -I"$sysinclude"
2888 add_ldflags --sysroot="$sysroot"
2893 if test "$cpu" = host; then
2894 enabled cross_compile &&
2895 die "--cpu=host makes no sense when cross-compiling."
2900 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2902 s/.*$1=\\([^ ]*\\).*/\\1/
2907 cpu=$(check_native -march || check_native -mcpu)
2911 test "${cpu:-host}" = host &&
2912 die "--cpu=host not supported with compiler $cc"
2915 # Deal with common $arch aliases
2929 "Power Macintosh"|ppc*|powerpc*)
2944 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2949 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2952 # Add processor-specific flags
2953 if enabled aarch64; then
2957 cpuflags="-march=$cpu"
2960 cpuflags="-mcpu=$cpu"
2964 elif enabled alpha; then
2966 cpuflags="-mcpu=$cpu"
2968 elif enabled arm; then
2971 check_cpp_condition stddef.h \
2972 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2977 if check_arm_arch 4; then echo armv4;
2978 elif check_arm_arch 4T; then echo armv4t;
2979 elif check_arm_arch 5; then echo armv5;
2980 elif check_arm_arch 5E; then echo armv5e;
2981 elif check_arm_arch 5T; then echo armv5t;
2982 elif check_arm_arch 5TE; then echo armv5te;
2983 elif check_arm_arch 5TEJ; then echo armv5te;
2984 elif check_arm_arch 6; then echo armv6;
2985 elif check_arm_arch 6J; then echo armv6j;
2986 elif check_arm_arch 6K; then echo armv6k;
2987 elif check_arm_arch 6Z; then echo armv6z;
2988 elif check_arm_arch 6ZK; then echo armv6zk;
2989 elif check_arm_arch 6T2; then echo armv6t2;
2990 elif check_arm_arch 7; then echo armv7;
2991 elif check_arm_arch 7A 7_A; then echo armv7-a;
2992 elif check_arm_arch 7R 7_R; then echo armv7-r;
2993 elif check_arm_arch 7M 7_M; then echo armv7-m;
2994 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2995 elif check_arm_arch 8A 8_A; then echo armv8-a;
2999 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3003 cpuflags="-march=$cpu"
3004 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3007 cpuflags="-mcpu=$cpu"
3009 cortex-a*) subarch=armv7a ;;
3010 cortex-r*) subarch=armv7r ;;
3011 cortex-m*) enable thumb; subarch=armv7m ;;
3012 arm11*) subarch=armv6 ;;
3013 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3014 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3015 *) subarch=$(probe_arm_arch) ;;
3021 armv5t*) enable fast_clz ;;
3022 armv[6-8]*) enable fast_clz fast_unaligned ;;
3025 elif enabled avr32; then
3030 cpuflags="-mpart=$cpu"
3034 cpuflags="-march=$cpu"
3038 cpuflags="-mcpu=$cpu"
3042 cpuflags="-march=$cpu"
3046 elif enabled bfin; then
3048 cpuflags="-mcpu=$cpu"
3050 elif enabled mips; then
3052 cpuflags="-march=$cpu"
3054 elif enabled ppc; then
3056 case $(tolower $cpu) in
3057 601|ppc601|powerpc601)
3058 cpuflags="-mcpu=601"
3061 603*|ppc603*|powerpc603*)
3062 cpuflags="-mcpu=603"
3065 604*|ppc604*|powerpc604*)
3066 cpuflags="-mcpu=604"
3069 g3|75*|ppc75*|powerpc75*)
3070 cpuflags="-mcpu=750"
3073 g4|745*|ppc745*|powerpc745*)
3074 cpuflags="-mcpu=7450"
3076 74*|ppc74*|powerpc74*)
3077 cpuflags="-mcpu=7400"
3079 g5|970|ppc970|powerpc970)
3080 cpuflags="-mcpu=970"
3083 cpuflags="-mcpu=$cpu"
3086 cpuflags="-mcpu=cell"
3090 cpuflags="-mcpu=e500mc"
3094 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3098 cpuflags="-mcpu=8540 -mhard-float"
3103 elif enabled sparc; then
3106 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3107 cpuflags="-mcpu=$cpu"
3110 ultrasparc*|niagara[234])
3111 cpuflags="-mcpu=$cpu"
3115 elif enabled x86; then
3119 cpuflags="-march=$cpu"
3122 # targets that do NOT support nopl and conditional mov (cmov)
3123 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3124 cpuflags="-march=$cpu"
3127 # targets that do support nopl and conditional mov (cmov)
3128 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*)
3129 cpuflags="-march=$cpu"
3133 # targets that do support conditional mov but on which it's slow
3134 pentium4|pentium4m|prescott|nocona)
3135 cpuflags="-march=$cpu"
3143 if [ "$cpu" != generic ]; then
3144 add_cflags $cpuflags
3145 add_asflags $cpuflags
3148 # compiler sanity check
3150 int main(void){ return 0; }
3152 if test "$?" != 0; then
3153 echo "$cc is unable to create an executable file."
3154 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3155 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3156 echo "Only do this if you know what cross compiling means."
3158 die "C compiler test failed."
3161 add_cppflags -D_ISOC99_SOURCE
3162 check_cflags -std=c99
3163 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3166 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3170 check_host_cflags -std=c99
3171 check_host_cflags -Wall
3177 check_code cc "" "int test[2*($expr) - 1]" &&
3178 subarch=$arch64 || subarch=$arch32
3186 check_64bit mips mips64 '_MIPS_SIM > 1'
3190 check_64bit parisc parisc64 'sizeof(void *) > 4'
3194 check_64bit ppc ppc64 'sizeof(void *) > 4'
3198 check_64bit sparc sparc64 'sizeof(void *) > 4'
3202 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3203 if test "$subarch" = "x86_64"; then
3210 enabled spic && enable_weak pic
3216 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3217 enabled shared && add_ldflags -Wl,-brtl
3220 prefix_default="/boot/common"
3221 network_extralibs="-lnetwork"
3225 SHFLAGS='-shared -Wl,-h,$$(@F)'
3226 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3227 network_extralibs="-lsocket -lnsl"
3228 # When using suncc to build, the Solaris linker will mark
3229 # an executable with each instruction set encountered by
3230 # the Solaris assembler. As our libraries contain their own
3231 # guards for processor-specific code, instead suppress
3232 # generation of the HWCAPS ELF section on Solaris x86 only.
3233 enabled_all suncc x86 &&
3234 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3235 add_ldflags -Wl,-M,mapfile
3236 nm_default='nm -P -g'
3240 oss_indev_extralibs="-lossaudio"
3241 oss_outdev_extralibs="-lossaudio"
3246 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3248 oss_indev_extralibs="-lossaudio"
3249 oss_outdev_extralibs="-lossaudio"
3257 add_extralibs -lpoll -lgnugetopt
3260 gas="gas-preprocessor.pl $cc"
3261 enabled ppc && add_asflags -force_cpusubtype_ALL
3262 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3263 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3264 add_ldflags -Wl,-dynamic,-search_paths_first
3266 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3267 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3269 enabled x86_64 && objformat="macho64"
3270 enabled_any pic shared ||
3271 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3274 if test $target_os = "mingw32ce"; then
3280 if enabled x86_64; then
3281 LIBTARGET="i386:x86-64"
3282 elif enabled arm; then
3285 check_ldflags -Wl,--nxcompat
3286 check_ldflags -Wl,--dynamicbase
3287 shlibdir_default="$bindir_default"
3290 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3291 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3292 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3293 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3295 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3296 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3297 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3299 dlltool="${cross_prefix}dlltool"
3305 if enabled shared; then
3306 # Link to the import library instead of the normal static library
3309 # Cannot build both shared and static libs with MSVC or icl.
3312 shlibdir_default="$bindir_default"
3315 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3316 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3317 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3318 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3320 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3321 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3322 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3329 shlibdir_default="$bindir_default"
3332 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3333 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3334 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3336 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3337 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3341 *-dos|freedos|opendos)
3342 network_extralibs="-lsocket"
3345 add_cppflags -U__STRICT_ANSI__
3352 ranlib="echo ignoring ranlib"
3357 add_cppflags -D_GNU_SOURCE
3358 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3359 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3363 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3364 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3365 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3366 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3367 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3368 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3369 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3370 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3371 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3372 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3373 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3377 add_cppflags -D_BSD_SOURCE
3382 add_cppflags -D_QNX_SOURCE
3383 network_extralibs="-lsocket"
3388 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3389 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3390 add_ldflags -Wl,--target1-abs,--no-undefined \
3391 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3392 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3393 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3394 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3395 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3398 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3403 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3404 -D_REENTRANT_SOURCE \
3405 -D_RESEARCH_SOURCE \
3408 add_compat strtod.o strtod=avpriv_strtod
3409 network_extralibs='-lbsd'
3410 exeobjs=compat/plan9/main.o
3417 die "Unknown OS '$target_os'."
3421 # determine libc flavour
3426 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3427 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3428 eval ${pfx}libc_type=uclibc
3429 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3430 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3431 eval ${pfx}libc_type=glibc
3432 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3433 # MinGW headers can be installed on Cygwin, so check for newlib first.
3434 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3435 eval ${pfx}libc_type=newlib
3436 add_${pfx}cppflags -U__STRICT_ANSI__
3437 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3438 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3439 eval ${pfx}libc_type=mingw64
3440 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3441 eval test \$${pfx_no_}cc_type = "gcc" &&
3442 add_${pfx}cppflags -D__printf__=__gnu_printf__
3443 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3444 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3445 eval ${pfx}libc_type=mingw32
3446 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3447 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3448 die "ERROR: MinGW32 runtime version must be >= 3.15."
3449 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3450 eval test \$${pfx_no_}cc_type = "gcc" &&
3451 add_${pfx}cppflags -D__printf__=__gnu_printf__
3452 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3453 eval ${pfx}libc_type=msvcrt
3454 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3455 # 0x601 by default unless something else is set by the user.
3456 # This can easily lead to us detecting functions only present
3457 # in such new versions and producing binaries requiring windows 7.0.
3458 # Therefore explicitly set the default to XP unless the user has
3459 # set something else on the command line.
3460 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3461 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3462 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3463 eval ${pfx}libc_type=klibc
3464 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3465 eval ${pfx}libc_type=bionic
3466 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3467 eval ${pfx}libc_type=solaris
3468 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3473 test -n "$libc_type" && enable libc_$libc_type
3475 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3479 add_compat strtod.o strtod=avpriv_strtod
3482 add_compat strtod.o strtod=avpriv_strtod
3483 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3484 _snprintf=avpriv_snprintf \
3485 vsnprintf=avpriv_vsnprintf
3489 # hacks for compiler/libc/os combinations
3491 if enabled_all tms470 libc_glibc; then
3492 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3493 add_cppflags -D__USER_LABEL_PREFIX__=
3494 add_cppflags -D__builtin_memset=memset
3495 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3496 add_cflags -pds=48 # incompatible redefinition of macro
3499 if enabled_all ccc libc_glibc; then
3500 add_ldflags -Wl,-z,now # calls to libots crash without this
3504 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3507 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3509 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3511 set_default $PATHS_LIST
3514 # we need to build at least one lib type
3515 if ! enabled_any static shared; then
3517 At least one library type must be built.
3518 Specify --enable-static to build the static libraries or --enable-shared to
3519 build the shared libraries as well. To only build the shared libraries specify
3520 --disable-static in addition to --enable-shared.
3525 die_license_disabled() {
3526 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3529 die_license_disabled gpl libcdio
3530 die_license_disabled gpl libx264
3531 die_license_disabled gpl libxavs
3532 die_license_disabled gpl libxvid
3533 die_license_disabled gpl x11grab
3535 die_license_disabled nonfree libfaac
3536 die_license_disabled nonfree libfdk_aac
3537 die_license_disabled nonfree openssl
3539 die_license_disabled version3 libopencore_amrnb
3540 die_license_disabled version3 libopencore_amrwb
3541 die_license_disabled version3 libvo_aacenc
3542 die_license_disabled version3 libvo_amrwbenc
3544 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3546 disabled optimizations || check_cflags -fomit-frame-pointer
3549 disabled pic && return
3552 case "$target_os" in
3562 enabled pic && enable_weak_pic
3564 check_cc <<EOF || die "Symbol mangling check failed."
3567 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3568 extern_prefix=${sym%%ff_extern*}
3570 check_cc <<EOF && enable_weak inline_asm
3571 void foo(void) { __asm__ volatile ("" ::); }
3575 for restrict_keyword in restrict __restrict__ __restrict; do
3576 check_cc <<EOF && _restrict=$restrict_keyword && break
3577 void foo(char * $restrict_keyword p);
3581 check_cc <<EOF && enable pragma_deprecated
3582 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3585 check_cc <<EOF && enable attribute_packed
3586 struct { int x; } __attribute__((packed)) x;
3589 check_cc <<EOF && enable attribute_may_alias
3590 union { int x; } __attribute__((may_alias)) x;
3593 check_cc <<EOF || die "endian test failed"
3594 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3596 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3598 check_inline_asm inline_asm_labels '"1:\n"'
3600 if enabled aarch64; then
3601 # internal assembler in clang 3.3 does not support this instruction
3602 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3603 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3605 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3607 elif enabled alpha; then
3611 elif enabled arm; then
3613 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3614 enabled thumb && check_cflags -mthumb || check_cflags -marm
3617 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3619 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3620 case "${cross_prefix:-$cc}" in
3621 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3622 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3623 __asm__ (".eabi_attribute 28, 1");
3624 int main(void) { return 0; }
3627 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3630 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3631 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3632 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3633 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3634 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3635 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3637 [ $target_os = linux ] ||
3638 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3641 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3642 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3644 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3646 elif enabled mips; then
3648 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3650 elif enabled parisc; then
3652 if enabled gcc; then
3653 case $($cc -dumpversion) in
3654 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3658 elif enabled ppc; then
3660 enable local_aligned_8 local_aligned_16
3662 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3663 check_inline_asm ibm_asm '"add 0, 0, 0"'
3664 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3665 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3667 # AltiVec flags: The FSF version of GCC differs from the Apple version
3668 if enabled altivec; then
3670 check_cflags -maltivec -mabi=altivec &&
3671 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3672 check_cflags -faltivec
3674 # check if our compiler supports Motorola AltiVec C API
3675 check_cc <<EOF || disable altivec
3678 vector signed int v1 = (vector signed int) { 0 };
3679 vector signed int v2 = (vector signed int) { 1 };
3680 v1 = vec_add(v1, v2);
3685 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3688 elif enabled sparc; then
3690 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3692 elif enabled x86; then
3694 check_builtin rdtsc intrin.h "__rdtsc()"
3695 check_builtin mm_empty mmintrin.h "_mm_empty()"
3697 enable local_aligned_8 local_aligned_16
3699 # check whether EBP is available on x86
3700 # As 'i' is stored on the stack, this program will crash
3701 # if the base pointer is used to access it because the
3702 # base pointer is cleared in the inline assembly code.
3703 check_exec_crash <<EOF && enable ebp_available
3705 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3709 # check whether EBX is available on x86
3710 check_inline_asm ebx_available '""::"b"(0)' &&
3711 check_inline_asm ebx_available '"":::"%ebx"'
3713 # check whether xmm clobbers are supported
3714 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3716 # check whether binutils is new enough to compile SSSE3/MMXEXT
3717 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3718 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3720 if ! disabled_any asm mmx yasm; then
3721 if check_cmd $yasmexe --version; then
3722 enabled x86_64 && yasm_extra="-m amd64"
3723 yasm_debug="-g dwarf2"
3724 elif check_cmd nasm -v; then
3726 yasm_debug="-g -F dwarf"
3727 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3730 YASMFLAGS="-f $objformat $yasm_extra"
3731 enabled pic && append YASMFLAGS "-DPIC"
3732 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3733 case "$objformat" in
3734 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3737 check_yasm "movbe ecx, [5]" && enable yasm ||
3738 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3739 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3740 check_yasm "CPU amdnop" && enable cpunop
3744 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3751 if enabled asm; then
3753 check_as <<EOF && enable gnu_as || \
3754 $nogas "GNU assembler not found, install gas-preprocessor"
3762 check_ldflags -Wl,--as-needed
3764 if check_func dlopen; then
3766 elif check_func dlopen -ldl; then
3770 if ! disabled network; then
3771 check_type "sys/types.h sys/socket.h" socklen_t
3772 check_type netdb.h "struct addrinfo"
3773 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3774 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3775 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3776 check_type netinet/in.h "struct sockaddr_in6"
3777 check_type poll.h "struct pollfd"
3778 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3779 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3780 check_type netinet/sctp.h "struct sctp_event_subscribe"
3781 check_func getaddrinfo $network_extralibs
3782 check_func getservbyport $network_extralibs
3783 # Prefer arpa/inet.h over winsock2
3784 if check_header arpa/inet.h ; then
3785 check_func closesocket
3786 elif check_header winsock2.h ; then
3787 check_func_headers winsock2.h closesocket -lws2 &&
3788 network_extralibs="-lws2" ||
3789 { check_func_headers winsock2.h closesocket -lws2_32 &&
3790 network_extralibs="-lws2_32"; } || disable winsock2_h network
3791 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3792 check_type ws2tcpip.h socklen_t
3793 check_type ws2tcpip.h "struct addrinfo"
3794 check_type ws2tcpip.h "struct group_source_req"
3795 check_type ws2tcpip.h "struct ip_mreq_source"
3796 check_type ws2tcpip.h "struct ipv6_mreq"
3797 check_type winsock2.h "struct pollfd"
3798 check_type ws2tcpip.h "struct sockaddr_in6"
3799 check_type ws2tcpip.h "struct sockaddr_storage"
3800 check_struct winsock2.h "struct sockaddr" sa_len
3806 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3807 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3811 check_func_headers stdlib.h getenv
3812 check_func gethrtime
3814 check_func getrusage
3815 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3816 check_func gettimeofday
3817 check_func inet_aton $network_extralibs
3819 check_func localtime_r
3820 check_func ${malloc_prefix}memalign && enable memalign
3824 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3825 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3826 check_func setrlimit
3827 check_func strerror_r
3830 check_func sched_getaffinity
3831 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3832 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3833 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3834 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3838 check_func_headers io.h setmode
3839 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3840 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3841 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3842 check_func_headers windows.h GetProcessAffinityMask
3843 check_func_headers windows.h GetProcessTimes
3844 check_func_headers windows.h GetSystemTimeAsFileTime
3845 check_func_headers windows.h MapViewOfFile
3846 check_func_headers windows.h SetConsoleTextAttribute
3847 check_func_headers windows.h Sleep
3848 check_func_headers windows.h VirtualAlloc
3850 check_header direct.h
3851 check_header dlfcn.h
3853 check_header dxva2api.h
3855 check_header malloc.h
3857 check_header sys/mman.h
3858 check_header sys/param.h
3859 check_header sys/resource.h
3860 check_header sys/select.h
3861 check_header sys/time.h
3862 check_header sys/un.h
3863 check_header unistd.h
3864 check_header vdpau/vdpau.h
3865 check_header vdpau/vdpau_x11.h
3866 check_header VideoDecodeAcceleration/VDADecoder.h
3867 check_header windows.h
3868 check_header X11/extensions/XvMClib.h
3870 if ! disabled w32threads && ! enabled pthreads; then
3871 check_func_headers "windows.h process.h" _beginthreadex &&
3872 enable w32threads || disable w32threads
3875 # check for some common methods of building with pthread support
3876 # do this before the optional library checks as some of them require pthreads
3877 if ! disabled pthreads && ! enabled w32threads; then
3879 if check_func pthread_join -pthread; then
3881 add_extralibs -pthread
3882 elif check_func pthread_join -pthreads; then
3883 add_cflags -pthreads
3884 add_extralibs -pthreads
3885 elif check_func pthread_join -lpthreadGC2; then
3886 add_extralibs -lpthreadGC2
3887 elif check_lib pthread.h pthread_join -lpthread; then
3889 elif ! check_func pthread_join; then
3894 for thread in $THREADS_LIST; do
3895 if enabled $thread; then
3896 test -n "$thread_type" &&
3897 die "ERROR: Only one thread type must be selected." ||
3898 thread_type="$thread"
3902 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3903 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3905 check_lib math.h sin -lm && LIBM="-lm"
3906 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3912 for func in $MATH_FUNCS; do
3913 eval check_mathfunc $func \${${func}_args:-1}
3916 # these are off by default, so fail if requested and not available
3917 enabled avisynth && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
3918 { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
3919 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
3920 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3921 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3922 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3923 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3924 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
3925 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3926 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3927 done || die "ERROR: libgsm not found"; }
3928 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3929 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3930 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3931 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3932 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3933 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3934 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3935 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3936 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3937 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3938 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3939 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3940 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3941 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3942 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3944 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3945 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3946 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3947 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3948 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3949 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3950 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
3951 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
3952 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3953 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3954 die "ERROR: libx264 version must be >= 0.118."; }
3955 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3956 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3957 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3958 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3959 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3960 die "ERROR: openssl not found"; }
3962 if enabled gnutls; then
3963 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3964 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3968 if enabled libdc1394; then
3969 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3970 enable libdc1394_2; } ||
3971 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3972 enable libdc1394_1; } ||
3973 die "ERROR: No version of libdc1394 found "
3976 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3977 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3978 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3982 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3983 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3985 check_header linux/fb.h
3986 check_header linux/videodev2.h
3987 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3989 check_header sys/videoio.h
3991 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3992 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3993 # w32api 3.12 had it defined wrong
3994 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3996 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3997 { check_header dev/bktr/ioctl_meteor.h &&
3998 check_header dev/bktr/ioctl_bt848.h; } ||
3999 { check_header machine/ioctl_meteor.h &&
4000 check_header machine/ioctl_bt848.h; } ||
4001 { check_header dev/video/meteor/ioctl_meteor.h &&
4002 check_header dev/video/bktr/ioctl_bt848.h; } ||
4003 check_header dev/ic/bt8xx.h
4005 check_header sndio.h
4006 check_header sys/soundcard.h
4007 check_header soundcard.h
4009 enabled_any alsa_indev alsa_outdev &&
4010 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4012 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4013 check_func jack_port_get_latency_range -ljack
4015 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4017 if enabled libcdio; then
4018 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4019 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4022 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4025 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4026 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4027 { enabled xlib || die "ERROR: Xlib not found"; }
4030 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4033 enabled vdpau && enabled xlib &&
4034 check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4037 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4039 # add some useful compiler flags if supported
4040 check_cflags -Wdeclaration-after-statement
4042 check_cflags -Wdisabled-optimization
4043 check_cflags -Wpointer-arith
4044 check_cflags -Wredundant-decls
4045 check_cflags -Wcast-qual
4046 check_cflags -Wwrite-strings
4047 check_cflags -Wtype-limits
4048 check_cflags -Wundef
4049 check_cflags -Wmissing-prototypes
4050 check_cflags -Wstrict-prototypes
4051 enabled extra_warnings && check_cflags -Winline
4053 check_disable_warning(){
4054 warning_flag=-W${1#-Wno-}
4055 test_cflags $warning_flag && add_cflags $1
4058 check_disable_warning -Wno-parentheses
4059 check_disable_warning -Wno-switch
4060 check_disable_warning -Wno-format-zero-length
4061 check_disable_warning -Wno-pointer-sign
4063 # add some linker flags
4064 check_ldflags -Wl,--warn-common
4065 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4066 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4068 # add some strip flags
4069 # -wN '..@*' is more selective than -x, but not available everywhere.
4070 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4072 enabled neon_clobber_test &&
4073 check_ldflags -Wl,--wrap,avcodec_open2 \
4074 -Wl,--wrap,avcodec_decode_audio4 \
4075 -Wl,--wrap,avcodec_decode_video2 \
4076 -Wl,--wrap,avcodec_decode_subtitle2 \
4077 -Wl,--wrap,avcodec_encode_audio2 \
4078 -Wl,--wrap,avcodec_encode_video2 \
4079 -Wl,--wrap,avcodec_encode_subtitle \
4080 -Wl,--wrap,avresample_convert ||
4081 disable neon_clobber_test
4083 enabled xmm_clobber_test &&
4084 check_ldflags -Wl,--wrap,avcodec_open2 \
4085 -Wl,--wrap,avcodec_decode_audio4 \
4086 -Wl,--wrap,avcodec_decode_video2 \
4087 -Wl,--wrap,avcodec_decode_subtitle2 \
4088 -Wl,--wrap,avcodec_encode_audio2 \
4089 -Wl,--wrap,avcodec_encode_video2 \
4090 -Wl,--wrap,avcodec_encode_subtitle \
4091 -Wl,--wrap,avresample_convert \
4092 -Wl,--wrap,sws_scale ||
4093 disable xmm_clobber_test
4096 if test_ldflags -Wl,--version-script,$TMPV; then
4097 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4098 check_cc <<EOF && enable symver_asm_label
4099 void ff_foo(void) __asm__ ("av_foo@VERSION");
4100 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4102 check_cc <<EOF && enable symver_gnu_asm
4103 __asm__(".symver ff_foo,av_foo@VERSION");
4104 void ff_foo(void) {}
4108 if [ -z "$optflags" ]; then
4109 if enabled small; then
4110 optflags=$cflags_size
4111 elif enabled optimizations; then
4112 optflags=$cflags_speed
4114 optflags=$cflags_noopt
4120 enabled lto && check_ldflags "$@"
4124 if enabled lto; then
4125 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4127 check_ldflags -flto $cpuflags
4130 check_optflags $optflags
4131 check_optflags -fno-math-errno
4132 check_optflags -fno-signed-zeros
4134 if enabled icc; then
4135 # Just warnings, no remarks
4137 # -wd: Disable following warnings
4138 # 144, 167, 556: -Wno-pointer-sign
4139 # 1292: attribute "foo" ignored
4140 # 1419: external declaration in primary source file
4141 # 10006: ignoring unknown option -fno-signed-zeros
4142 # 10148: ignoring unknown option -Wno-parentheses
4143 # 10156: ignoring option '-W'; no argument required
4144 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4145 # 11030: Warning unknown option --as-needed
4146 # 10156: ignoring option '-export'; no argument required
4147 check_ldflags -wd10156,11030
4148 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4149 enable ebp_available
4150 if enabled x86_32; then
4151 icc_version=$($cc -dumpversion)
4152 test ${icc_version%%.*} -ge 11 &&
4153 check_cflags -falign-stack=maintain-16-byte ||
4154 disable aligned_stack
4156 elif enabled ccc; then
4157 # disable some annoying warnings
4158 add_cflags -msg_disable bitnotint
4159 add_cflags -msg_disable mixfuncvoid
4160 add_cflags -msg_disable nonstandcast
4161 add_cflags -msg_disable unsupieee
4162 elif enabled gcc; then
4163 check_optflags -fno-tree-vectorize
4164 check_cflags -Werror=implicit-function-declaration
4165 check_cflags -Werror=missing-prototypes
4166 check_cflags -Werror=return-type
4167 check_cflags -Werror=declaration-after-statement
4168 check_cflags -Werror=vla
4169 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4170 elif enabled llvm_gcc; then
4171 check_cflags -mllvm -stack-alignment=16
4172 elif enabled clang; then
4173 check_cflags -mllvm -stack-alignment=16
4174 check_cflags -Qunused-arguments
4175 check_cflags -Werror=implicit-function-declaration
4176 check_cflags -Werror=missing-prototypes
4177 check_cflags -Werror=return-type
4178 elif enabled cparser; then
4179 add_cflags -Wno-missing-variable-declarations
4180 add_cflags -Wno-empty-statement
4181 elif enabled armcc; then
4182 # 2523: use of inline assembler is deprecated
4183 add_cflags -W${armcc_opt},--diag_suppress=2523
4184 add_cflags -W${armcc_opt},--diag_suppress=1207
4185 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4186 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4187 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4188 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4189 elif enabled tms470; then
4190 add_cflags -pds=824 -pds=837
4192 elif enabled pathscale; then
4193 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4194 elif enabled_any msvc icl; then
4195 enabled x86_32 && disable aligned_stack
4196 enabled_all x86_32 debug && add_cflags -Oy-
4197 enabled debug && add_ldflags -debug
4198 enable pragma_deprecated
4199 if enabled icl; then
4200 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4201 # (correctly) on icl 13.x.
4202 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4203 add_cflags -Qansi-alias
4204 # icl will pass the inline asm tests but inline asm is currently
4205 # not supported (build will fail)
4212 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4215 add_cppflags -Dmain=plan9_main
4219 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4221 check_deps $CONFIG_LIST \
4226 ! enabled_any memalign posix_memalign aligned_malloc &&
4227 enabled_any $need_memalign && enable memalign_hack
4229 echo "install prefix $prefix"
4230 echo "source path $source_path"
4231 echo "C compiler $cc"
4232 echo "C library $libc_type"
4233 if test "$host_cc" != "$cc"; then
4234 echo "host C compiler $host_cc"
4235 echo "host C library $host_libc_type"
4237 echo "ARCH $arch ($cpu)"
4238 if test "$build_suffix" != ""; then
4239 echo "build suffix $build_suffix"
4241 if test "$extra_version" != ""; then
4242 echo "version string suffix $extra_version"
4244 echo "big-endian ${bigendian-no}"
4245 echo "runtime cpu detection ${runtime_cpudetect-no}"
4246 if enabled x86; then
4247 echo "${yasmexe} ${yasm-no}"
4248 echo "MMX enabled ${mmx-no}"
4249 echo "MMXEXT enabled ${mmxext-no}"
4250 echo "3DNow! enabled ${amd3dnow-no}"
4251 echo "3DNow! extended enabled ${amd3dnowext-no}"
4252 echo "SSE enabled ${sse-no}"
4253 echo "SSSE3 enabled ${ssse3-no}"
4254 echo "AVX enabled ${avx-no}"
4255 echo "FMA4 enabled ${fma4-no}"
4256 echo "i686 features enabled ${i686-no}"
4257 echo "CMOV is fast ${fast_cmov-no}"
4258 echo "EBX available ${ebx_available-no}"
4259 echo "EBP available ${ebp_available-no}"
4261 if enabled aarch64; then
4262 echo "NEON enabled ${neon-no}"
4263 echo "VFP enabled ${vfp-no}"
4265 if enabled arm; then
4266 echo "ARMv5TE enabled ${armv5te-no}"
4267 echo "ARMv6 enabled ${armv6-no}"
4268 echo "ARMv6T2 enabled ${armv6t2-no}"
4269 echo "VFP enabled ${vfp-no}"
4270 echo "NEON enabled ${neon-no}"
4272 if enabled ppc; then
4273 echo "AltiVec enabled ${altivec-no}"
4274 echo "PPC 4xx optimizations ${ppc4xx-no}"
4275 echo "dcbzl available ${dcbzl-no}"
4277 if enabled sparc; then
4278 echo "VIS enabled ${vis-no}"
4280 echo "debug symbols ${debug-no}"
4281 echo "optimize for size ${small-no}"
4282 echo "optimizations ${optimizations-no}"
4283 echo "static ${static-no}"
4284 echo "shared ${shared-no}"
4285 echo "new filter support ${avfilter-no}"
4286 echo "network support ${network-no}"
4287 echo "threading support ${thread_type-no}"
4288 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4289 echo "SDL support ${sdl-no}"
4290 test -n "$random_seed" &&
4291 echo "random seed ${random_seed}"
4294 echo "External libraries:"
4295 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4298 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4299 echo "Enabled ${type}s:"
4300 eval list=\$$(toupper $type)_LIST
4301 print_enabled '_*' $list | print_3_columns
4305 license="LGPL version 2.1 or later"
4306 if enabled nonfree; then
4307 license="nonfree and unredistributable"
4308 elif enabled gplv3; then
4309 license="GPL version 3 or later"
4310 elif enabled lgplv3; then
4311 license="LGPL version 3 or later"
4312 elif enabled gpl; then
4313 license="GPL version 2 or later"
4316 echo "License: $license"
4318 echo "Creating config.mak and config.h..."
4320 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4322 config_files="$TMPH config.mak"
4324 cat > config.mak <<EOF
4325 # Automatically generated by configure - do not modify!
4326 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4328 LIBDIR=\$(DESTDIR)$libdir
4329 SHLIBDIR=\$(DESTDIR)$shlibdir
4330 INCDIR=\$(DESTDIR)$incdir
4331 BINDIR=\$(DESTDIR)$bindir
4332 DATADIR=\$(DESTDIR)$datadir
4333 DOCDIR=\$(DESTDIR)$docdir
4334 MANDIR=\$(DESTDIR)$mandir
4335 SRC_PATH=$source_path
4342 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4344 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4366 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4367 STRIPFLAGS=$STRIPFLAGS
4368 YASMFLAGS=$YASMFLAGS
4369 BUILDSUF=$build_suffix
4377 EXTRA_VERSION=$extra_version
4379 CCDEP_FLAGS=$CCDEP_FLAGS
4381 ASDEP_FLAGS=$ASDEP_FLAGS
4382 CC_DEPFLAGS=$CC_DEPFLAGS
4383 AS_DEPFLAGS=$AS_DEPFLAGS
4386 HOSTCFLAGS=$host_cflags
4387 HOSTCPPFLAGS=$host_cppflags
4388 HOSTEXESUF=$HOSTEXESUF
4389 HOSTLDFLAGS=$host_ldflags
4392 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4393 HOSTCCDEP=$HOSTCCDEP
4394 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4395 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4399 TARGET_EXEC=$target_exec $target_exec_args
4400 TARGET_PATH=$target_path
4401 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4402 LIBS-avplay=$sdl_libs
4403 CFLAGS-avplay=$sdl_cflags
4404 ZLIB=$($ldflags_filter -lz)
4405 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4406 EXTRALIBS=$extralibs
4407 COMPAT_OBJS=$compat_objs
4410 LIBTARGET=${LIBTARGET}
4411 SLIBNAME=${SLIBNAME}
4412 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4413 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4414 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4415 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4416 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4417 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4418 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4419 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4420 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4425 name=$(toupper $lcname)
4426 file=$source_path/$lcname/version.h
4427 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4428 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4429 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4430 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4431 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4434 map 'get_version $v' $LIBRARY_LIST
4437 /* Automatically generated by configure - do not modify! */
4438 #ifndef LIBAV_CONFIG_H
4439 #define LIBAV_CONFIG_H
4440 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4441 #define LIBAV_LICENSE "$(c_escape $license)"
4442 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4443 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4444 #define restrict $_restrict
4445 #define EXTERN_PREFIX "${extern_prefix}"
4446 #define EXTERN_ASM ${extern_prefix}
4447 #define SLIBSUF "$SLIBSUF"
4450 test -n "$malloc_prefix" &&
4451 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4453 if enabled yasm; then
4454 append config_files $TMPASM
4458 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4460 print_config ARCH_ "$config_files" $ARCH_LIST
4461 print_config HAVE_ "$config_files" $HAVE_LIST
4462 print_config CONFIG_ "$config_files" $CONFIG_LIST \
4466 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4468 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4469 cp_if_changed $TMPH config.h
4472 enabled yasm && cp_if_changed $TMPASM config.asm
4475 /* Generated by ffconf */
4476 #ifndef AVUTIL_AVCONFIG_H
4477 #define AVUTIL_AVCONFIG_H
4480 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4482 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4484 cp_if_changed $TMPH libavutil/avconfig.h
4486 test -n "$WARNINGS" && printf "\n$WARNINGS"
4488 # build pkg-config files
4490 pkgconfig_generate(){
4492 shortname=${name#lib}${build_suffix}
4497 enabled ${name#lib} || return 0
4499 cat <<EOF > $name/$name.pc
4501 exec_prefix=\${prefix}
4506 Description: $comment
4508 Requires: $(enabled shared || echo $requires)
4509 Requires.private: $(enabled shared && echo $requires)
4511 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4512 Libs.private: $(enabled shared && echo $libs)
4513 Cflags: -I\${includedir}
4515 cat <<EOF > $name/$name-uninstalled.pc
4518 libdir=\${pcfiledir}
4519 includedir=${source_path}
4522 Description: $comment
4526 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4527 Cflags: -I\${includedir}
4531 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4532 enabled movie_filter && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4533 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4534 enabled scale_filter && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4536 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4537 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4538 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4539 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4540 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4541 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4542 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"