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-libx265 enable HEVC encoding via x265 [no]
208 --enable-libxavs enable AVS encoding via xavs [no]
209 --enable-libxvid enable Xvid encoding via xvidcore,
210 native MPEG-4/Xvid encoder exists [no]
211 --enable-openssl enable openssl [no]
212 --enable-x11grab enable X11 grabbing [no]
213 --enable-zlib enable zlib [autodetect]
215 Advanced options (experts only):
216 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
217 --enable-cross-compile assume a cross-compiler is used
218 --sysroot=PATH root of cross-build tree
219 --sysinclude=PATH location of cross-build system headers
220 --target-os=OS compiler targets OS [$target_os]
221 --target-exec=CMD command to run executables on target
222 --target-path=DIR path to view of build directory on target
223 --target-samples=DIR path to samples directory on target
224 --toolchain=NAME set tool defaults according to NAME
226 --ar=AR use archive tool AR [$ar_default]
227 --as=AS use assembler AS [$as_default]
228 --cc=CC use C compiler CC [$cc_default]
229 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
230 --ld=LD use linker LD
231 --host-cc=HOSTCC use host C compiler HOSTCC
232 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
233 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
234 --host-ld=HOSTLD use host linker HOSTLD
235 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
236 --host-libs=HLIBS use libs HLIBS when linking for host
237 --host-os=OS compiler host OS [$target_os]
238 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
239 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
240 --extra-libs=ELIBS add ELIBS [$ELIBS]
241 --extra-version=STRING version string suffix []
242 --optflags=OPTFLAGS override optimization-related compiler flags
243 --build-suffix=SUFFIX library name suffix []
244 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
245 --arch=ARCH select architecture [$arch]
246 --cpu=CPU select the minimum required CPU (affects
247 instruction selection, may crash on older CPUs)
248 --enable-pic build position-independent code
249 --enable-sram allow use of on-chip SRAM
250 --enable-thumb compile for Thumb instruction set
251 --disable-symver disable symbol versioning
252 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
253 --disable-safe-bitstream-reader
254 disable buffer boundary checking in bitreaders
255 (faster, but may crash)
256 --enable-memalign-hack emulate memalign, interferes with memory debuggers
257 --enable-lto use link-time optimization
259 Optimization options (experts only):
260 --disable-asm disable all assembler optimizations
261 --disable-altivec disable AltiVec optimizations
262 --disable-amd3dnow disable 3DNow! optimizations
263 --disable-amd3dnowext disable 3DNow! extended optimizations
264 --disable-mmx disable MMX optimizations
265 --disable-mmxext disable MMXEXT optimizations
266 --disable-sse disable SSE optimizations
267 --disable-sse2 disable SSE2 optimizations
268 --disable-sse3 disable SSE3 optimizations
269 --disable-ssse3 disable SSSE3 optimizations
270 --disable-sse4 disable SSE4 optimizations
271 --disable-sse42 disable SSE4.2 optimizations
272 --disable-avx disable AVX optimizations
273 --disable-xop disable XOP optimizations
274 --disable-fma3 disable FMA3 optimizations
275 --disable-fma4 disable FMA4 optimizations
276 --disable-avx2 disable AVX2 optimizations
277 --disable-armv5te disable armv5te optimizations
278 --disable-armv6 disable armv6 optimizations
279 --disable-armv6t2 disable armv6t2 optimizations
280 --disable-vfp disable VFP optimizations
281 --disable-neon disable NEON optimizations
282 --disable-vis disable VIS optimizations
283 --disable-inline-asm disable use of inline assembler
284 --disable-yasm disable use of yasm assembler
286 Developer options (useful when working on Libav itself):
287 --disable-debug disable debugging symbols
288 --enable-debug=LEVEL set the debug level [$debuglevel]
289 --disable-optimizations disable compiler optimizations
290 --enable-extra-warnings enable more compiler warnings
291 --samples=PATH location of test samples for FATE, if not set use
292 \$LIBAV_SAMPLES at make invocation time.
293 --enable-neon-clobber-test check NEON registers for clobbering (should be
294 used only for debugging purposes)
295 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
296 should be used only for debugging purposes)
297 --enable-random randomly enable/disable components
299 --enable-random=LIST randomly enable/disable specific components or
300 --disable-random=LIST component groups. LIST is a comma-separated list
301 of NAME[:PROB] entries where NAME is a component
302 (group) and PROB the probability associated with
304 --random-seed=VALUE seed value for --enable/disable-random
306 NOTE: Object files are built at the place where configure is launched.
314 echo "$@" >> $logfile
319 pr -n -t $1 >> $logfile
330 WARNINGS="${WARNINGS}WARNING: $*\n"
337 If you think configure made a mistake, make sure you are using the latest
338 version from Git. If the latest version fails, report the problem to the
339 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
341 if disabled logging; then
343 Rerun configure with logging enabled (do not use --disable-logging), and
344 include the log this produces with your report.
348 Include the log file "$logfile" produced by configure as this will help
355 # Avoid locale weirdness, besides we really just want to translate ASCII.
357 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
361 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
365 echo "$*" | sed 's/["\\]/\\\0/g'
369 v=$(echo "$1" | sed "s/'/'\\\\''/g")
370 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
375 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
382 eval "case $v in $pat) echo $v ;; esac"
390 eval "case $v in $pat) ;; *) echo $v ;; esac"
397 for v; do eval $m; done
403 for v; do echo ${v}${suffix}; done
418 eval : \${$var:=$value}
423 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
429 eval $(sanitize_var_name "$var")='$*'
433 eval echo \$$(sanitize_var_name "$1")
438 eval level=\${${pvar}_level:=0}
439 eval ${pvar}_${level}="\$$pvar"
440 eval ${pvar}_level=$(($level+1))
446 eval level=\${${pvar}_level:-0}
447 test $level = 0 && continue
448 eval level=$(($level-1))
449 eval $pvar="\${${pvar}_${level}}"
450 eval ${pvar}_level=$level
451 eval unset ${pvar}_${level}
473 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
479 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
485 enabled $var && continue
486 eval sel="\$${var}_select"
487 eval sgs="\$${var}_suggest"
491 enable_deep_weak $sgs
503 disabled $var && continue
512 test "${1#!}" = "$1" && op== || op=!=
513 eval test "x\$${1#!}" $op "xyes"
517 test "${1#!}" = "$1" && op== || op=!=
518 eval test "x\$${1#!}" $op "xno"
523 enabled $opt || return 1
529 disabled $opt || return 1
535 enabled $opt && return 0
541 disabled $opt && return 0
548 eval : \${$opt:=\$${opt}_default}
556 [ $var = $value ] && return 0
564 enabled ${cfg}_checking && die "Circular dependency for $cfg."
565 disabled ${cfg}_checking && continue
566 enable ${cfg}_checking
569 eval dep_all="\$${cfg}_deps"
570 eval dep_any="\$${cfg}_deps_any"
571 eval dep_sel="\$${cfg}_select"
572 eval dep_sgs="\$${cfg}_suggest"
573 eval dep_ifa="\$${cfg}_if"
574 eval dep_ifn="\$${cfg}_if_any"
576 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
577 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
578 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
580 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
581 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
582 enabled_all $dep_all || disable $cfg
583 enabled_any $dep_any || disable $cfg
584 disabled_any $dep_sel && disable $cfg
586 if enabled $cfg; then
588 enable_deep_weak $dep_sgs
591 disable ${cfg}_checking
600 for cfg in $allopts; do
601 enabled $cfg || continue
602 eval dep_extralibs="\$${cfg}_extralibs"
603 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
611 map 'eval echo "$v \${$v:-no}"' "$@" |
612 awk "BEGIN { split(\"$files\", files) }
614 c = \"$pfx\" toupper(\$1);
620 if (file ~ /\\.h\$/) {
621 printf(\"#define %s %d\\n\", c, v) >>file;
622 } else if (file ~ /\\.asm\$/) {
623 printf(\"%%define %s %d\\n\", c, v) >>file;
624 } else if (file ~ /\\.mak\$/) {
625 n = -v ? \"\" : \"!\";
626 printf(\"%s%s=yes\\n\", n, c) >>file;
636 enabled $v && printf "%s\n" ${v%$suf};
643 eval "$var=\"\$$var $*\""
649 eval "$var=\"$* \$$var\""
657 append CFLAGS $($cflags_filter "$@")
661 append ASFLAGS $($asflags_filter "$@")
665 append LDFLAGS $($ldflags_filter "$@")
669 append STRIPFLAGS "$@"
673 prepend extralibs $($ldflags_filter "$@")
677 append host_cppflags "$@"
681 append host_cflags $($host_cflags_filter "$@")
685 append host_ldflags $($host_ldflags_filter "$@")
689 append compat_objs $1
691 map 'add_cppflags -D$v' "$@"
696 "$@" >> $logfile 2>&1
700 eval printf '%s\\n' $CC_O
704 eval printf '%s\\n' $CC_E
711 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
718 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
722 eval printf '%s\\n' $AS_O
729 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
733 log check_inline_asm "$@"
738 check_cc "$@" <<EOF && enable $name
739 void foo(void){ __asm__ volatile($code); }
745 check_inline_asm ${1}_inline "\"$2\""
746 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
754 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
758 eval printf '%s\\n' $LD_O
763 flags=$(filter_out '-l*' "$@")
764 libs=$(filter '-l*' "$@")
765 check_cc $($cflags_filter $flags) || return
766 flags=$($ldflags_filter $flags)
767 libs=$($ldflags_filter $libs)
768 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
773 test "${hdr%.h}" = "${hdr}" &&
774 echo "#include $hdr" ||
775 echo "#include <$hdr>"
785 for hdr in $headers; do
788 echo "int main(void) { $code; return 0; }"
789 } | check_$check "$@"
793 log check_cppflags "$@"
794 check_cc "$@" <<EOF && append CPPFLAGS "$@"
801 set -- $($cflags_filter "$@")
808 log check_cflags "$@"
809 test_cflags "$@" && add_cflags "$@"
813 log test_ldflags "$@"
815 int main(void){ return 0; }
820 log check_ldflags "$@"
821 test_ldflags "$@" && add_ldflags "$@"
825 log test_stripflags "$@"
826 # call check_cc to get a fresh TMPO
828 int main(void) { return 0; }
830 check_cmd $strip $STRIPFLAGS "$@" $TMPO
834 log check_stripflags "$@"
835 test_stripflags "$@" && add_stripflags "$@"
839 log check_header "$@"
843 check_cpp "$@" <<EOF && enable_safe $header
854 check_ld "$@" <<EOF && enable $func
856 int main(void){ $func(); }
861 log check_mathfunc "$@"
865 test $narg = 2 && args="f, g" || args="f"
867 check_ld "$@" <<EOF && enable $func
869 float foo(float f, float g) { return $func($args); }
870 int main(void){ return 0; }
874 check_func_headers(){
875 log check_func_headers "$@"
880 for hdr in $headers; do
883 for func in $funcs; do
884 echo "long check_$func(void) { return (long) $func; }"
886 echo "int main(void) { return 0; }"
887 } | check_ld "$@" && enable $funcs && enable_safe $headers
890 check_cpp_condition(){
891 log check_cpp_condition "$@"
898 #error "unsatisfied condition: $condition"
908 check_header $header && check_func $func "$@" && add_extralibs "$@"
916 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
920 log check_pkg_config "$@"
925 check_cmd $pkg_config --exists --print-errors $pkg || return
926 pkg_cflags=$($pkg_config --cflags $pkg)
927 pkg_libs=$($pkg_config --libs $pkg)
928 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
929 set_safe ${pkg}_cflags $pkg_cflags &&
930 set_safe ${pkg}_libs $pkg_libs
934 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
940 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
941 # are safe but may not be available everywhere. Thus we use
942 # raise(SIGTERM) instead. The check is run in a subshell so we
943 # can redirect the "Terminated" message from the shell. SIGBUS
944 # is not defined by standard C so it is used conditionally.
946 (check_exec "$@") >> $logfile 2>&1 <<EOF
948 static void sighandler(int sig){
954 int (*func_ptr)(void) = foo;
956 signal(SIGILL, sighandler);
957 signal(SIGFPE, sighandler);
958 signal(SIGSEGV, sighandler);
960 signal(SIGBUS, sighandler);
973 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
977 log check_struct "$@"
982 disable_safe "${struct}_${member}"
983 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
984 enable_safe "${struct}_${member}"
988 log check_builtin "$@"
994 check_code ld "$headers" "$builtin" "$@" && enable "$name"
997 check_compile_assert(){
998 log check_compile_assert "$@"
1004 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1012 check_lib $header $func "$@" || die "ERROR: $name not found"
1020 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1023 require_pkg_config(){
1025 check_pkg_config "$@" || die "ERROR: $pkg not found"
1026 add_cflags $(get_safe ${pkg}_cflags)
1027 add_extralibs $(get_safe ${pkg}_libs)
1031 eval printf '%s\\n' $HOSTCC_E
1035 eval printf '%s\\n' $HOSTCC_O
1039 log check_host_cc "$@"
1042 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1046 log check_host_cpp "$@"
1049 check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1052 check_host_cppflags(){
1053 log check_host_cppflags "$@"
1054 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1059 check_host_cflags(){
1060 log check_host_cflags "$@"
1061 set -- $($host_cflags_filter "$@")
1062 check_host_cc "$@" <<EOF && append host_cflags "$@"
1067 check_host_cpp_condition(){
1068 log check_host_cpp_condition "$@"
1072 check_host_cpp "$@" <<EOF
1075 #error "unsatisfied condition: $condition"
1083 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1087 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1088 mkdir -p "$(dirname $2)"
1092 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1093 # system-dependent things.
1111 filter_audio_example
1114 transcode_aac_example
1117 EXTERNAL_LIBRARY_LIST="
1181 $EXTERNAL_LIBRARY_LIST
1203 safe_bitstream_reader
1262 ARCH_EXT_LIST_X86_SIMD='
1281 $ARCH_EXT_LIST_X86_SIMD
1334 $(add_suffix _external $ARCH_EXT_LIST)
1335 $(add_suffix _inline $ARCH_EXT_LIST)
1352 cdio_paranoia_paranoia_h
1357 dev_bktr_ioctl_bt848_h
1358 dev_bktr_ioctl_meteor_h
1360 dev_video_bktr_ioctl_bt848_h
1361 dev_video_meteor_ioctl_meteor_h
1378 GetProcessAffinityMask
1379 GetProcessMemoryInfo
1381 GetSystemTimeAsFileTime
1392 jack_port_get_latency_range
1403 machine_ioctl_bt848_h
1404 machine_ioctl_meteor_h
1421 SetConsoleTextAttribute
1431 struct_group_source_req
1432 struct_ip_mreq_source
1435 struct_rusage_ru_maxrss
1437 struct_sockaddr_sa_len
1438 struct_sockaddr_storage
1439 struct_v4l2_frmivalenum_discrete
1442 sync_val_compare_and_swap
1466 # options emitted with CONFIG_ prefix but not available on the command line
1564 # code dependency declarations
1566 # architecture extensions
1571 neon_deps_any="aarch64 arm"
1572 vfp_deps_any="aarch64 arm"
1575 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1583 x86_64_select="i686"
1584 x86_64_suggest="fast_cmov"
1587 amd3dnowext_deps="amd3dnow"
1603 mmx_external_deps="yasm"
1604 mmx_inline_deps="inline_asm"
1605 mmx_suggest="mmx_external mmx_inline"
1607 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1608 eval dep=\$${ext}_deps
1609 eval ${ext}_external_deps='"${dep}_external"'
1610 eval ${ext}_inline_deps='"${dep}_inline"'
1611 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1614 aligned_stack_if_any="aarch64 ppc x86"
1615 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1616 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1617 fast_unaligned_if_any="aarch64 ppc x86"
1619 need_memalign="altivec neon sse"
1621 # system capabilities
1622 log2_deps="!libc_msvcrt"
1624 symver_if_any="symver_asm_label symver_gnu_asm"
1627 atomics_gcc_if="sync_val_compare_and_swap"
1628 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1629 atomics_win32_if="MemoryBarrier"
1630 atomics_native_if_any="$ATOMICS_LIST"
1631 w32threads_deps="atomics_native"
1632 threads_if_any="$THREADS_LIST"
1636 error_resilience_select="dsputil"
1637 lpc_select="dsputil"
1640 mpegaudio_select="mpegaudiodsp"
1641 mpegaudiodsp_select="dct"
1642 mpegvideo_select="dsputil hpeldsp videodsp"
1643 mpegvideoenc_select="mpegvideo"
1645 # decoders / encoders
1646 aac_decoder_select="mdct sinewin"
1647 aac_encoder_select="audio_frame_queue mdct sinewin"
1648 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1649 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1650 ac3_encoder_select="mdct ac3dsp dsputil"
1651 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1652 aic_decoder_select="dsputil golomb"
1653 alac_encoder_select="lpc"
1654 als_decoder_select="dsputil"
1655 amrnb_decoder_select="lsp"
1656 amrwb_decoder_select="lsp"
1657 amv_decoder_select="sp5x_decoder"
1658 ape_decoder_select="dsputil"
1659 asv1_decoder_select="dsputil"
1660 asv1_encoder_select="dsputil"
1661 asv2_decoder_select="dsputil"
1662 asv2_encoder_select="dsputil"
1663 atrac1_decoder_select="mdct sinewin"
1664 atrac3_decoder_select="mdct"
1665 atrac3p_decoder_select="mdct sinewin"
1666 bink_decoder_select="dsputil hpeldsp"
1667 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1668 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1669 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1670 cllc_decoder_select="dsputil"
1671 comfortnoise_encoder_select="lpc"
1672 cook_decoder_select="dsputil mdct sinewin"
1673 cscd_decoder_select="lzo"
1674 cscd_decoder_suggest="zlib"
1675 dca_decoder_select="mdct"
1676 dnxhd_decoder_select="dsputil"
1677 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1678 dvvideo_decoder_select="dsputil"
1679 dvvideo_encoder_select="dsputil"
1680 dxa_decoder_deps="zlib"
1681 eac3_decoder_select="ac3_decoder"
1682 eac3_encoder_select="ac3_encoder"
1683 eamad_decoder_select="aandcttables dsputil mpegvideo"
1684 eatgq_decoder_select="aandcttables dsputil"
1685 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1686 ffv1_decoder_select="dsputil golomb rangecoder"
1687 ffv1_encoder_select="dsputil rangecoder"
1688 ffvhuff_decoder_select="huffyuv_decoder"
1689 ffvhuff_encoder_select="huffyuv_encoder"
1690 fic_decoder_select="dsputil golomb"
1691 flac_decoder_select="golomb"
1692 flac_encoder_select="dsputil golomb lpc"
1693 flashsv_decoder_deps="zlib"
1694 flashsv_encoder_deps="zlib"
1695 flashsv2_decoder_deps="zlib"
1696 flv_decoder_select="h263_decoder"
1697 flv_encoder_select="h263_encoder"
1698 fourxm_decoder_select="dsputil"
1699 fraps_decoder_select="dsputil huffman"
1700 g2m_decoder_deps="zlib"
1701 g2m_decoder_select="dsputil"
1702 h261_decoder_select="error_resilience mpegvideo"
1703 h261_encoder_select="aandcttables mpegvideoenc"
1704 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1705 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1706 h263i_decoder_select="h263_decoder"
1707 h263p_encoder_select="h263_encoder"
1708 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1709 h264_decoder_suggest="error_resilience"
1710 hevc_decoder_select="dsputil golomb videodsp"
1711 huffyuv_decoder_select="dsputil"
1712 huffyuv_encoder_select="dsputil huffman"
1713 iac_decoder_select="imc_decoder"
1714 imc_decoder_select="dsputil fft mdct sinewin"
1715 indeo3_decoder_select="hpeldsp"
1716 interplay_video_decoder_select="hpeldsp"
1717 jpegls_decoder_select="golomb mjpeg_decoder"
1718 jpegls_encoder_select="golomb"
1719 jv_decoder_select="dsputil"
1720 lagarith_decoder_select="dsputil"
1721 ljpeg_encoder_select="aandcttables mpegvideoenc"
1722 loco_decoder_select="golomb"
1723 mdec_decoder_select="dsputil error_resilience mpegvideo"
1724 metasound_decoder_select="lsp mdct sinewin"
1725 mimic_decoder_select="dsputil hpeldsp"
1726 mjpeg_decoder_select="dsputil hpeldsp"
1727 mjpegb_decoder_select="mjpeg_decoder"
1728 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1729 mlp_decoder_select="dsputil mlp_parser"
1730 motionpixels_decoder_select="dsputil"
1731 mp1_decoder_select="mpegaudio"
1732 mp1float_decoder_select="mpegaudio"
1733 mp2_decoder_select="mpegaudio"
1734 mp2float_decoder_select="mpegaudio"
1735 mp3_decoder_select="mpegaudio"
1736 mp3adu_decoder_select="mpegaudio"
1737 mp3adufloat_decoder_select="mpegaudio"
1738 mp3float_decoder_select="mpegaudio"
1739 mp3on4_decoder_select="mpegaudio"
1740 mp3on4float_decoder_select="mpegaudio"
1741 mpc7_decoder_select="dsputil mpegaudiodsp"
1742 mpc8_decoder_select="dsputil mpegaudiodsp"
1743 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1744 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1745 mpeg1video_decoder_select="error_resilience mpegvideo"
1746 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1747 mpeg2video_decoder_select="error_resilience mpegvideo"
1748 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1749 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1750 mpeg4_encoder_select="h263_encoder"
1751 msmpeg4v1_decoder_select="h263_decoder"
1752 msmpeg4v2_decoder_select="h263_decoder"
1753 msmpeg4v2_encoder_select="h263_encoder"
1754 msmpeg4v3_decoder_select="h263_decoder"
1755 msmpeg4v3_encoder_select="h263_encoder"
1756 mss2_decoder_select="error_resilience vc1_decoder"
1757 mxpeg_decoder_select="mjpeg_decoder"
1758 nellymoser_decoder_select="mdct sinewin"
1759 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1760 nuv_decoder_select="dsputil lzo"
1761 png_decoder_deps="zlib"
1762 png_decoder_select="dsputil"
1763 png_encoder_deps="zlib"
1764 png_encoder_select="dsputil"
1765 prores_decoder_select="dsputil"
1766 prores_encoder_select="dsputil"
1767 qcelp_decoder_select="lsp"
1768 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1769 ra_144_encoder_select="audio_frame_queue lpc"
1770 ralf_decoder_select="golomb"
1771 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1772 rv10_encoder_select="h263_encoder"
1773 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1774 rv20_encoder_select="h263_encoder"
1775 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1776 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1777 shorten_decoder_select="golomb"
1778 sipr_decoder_select="lsp"
1779 sp5x_decoder_select="mjpeg_decoder"
1780 svq1_decoder_select="hpeldsp"
1781 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1782 svq3_decoder_select="h264_decoder hpeldsp mpegvideo"
1783 svq3_decoder_suggest="zlib"
1784 tak_decoder_select="dsputil"
1785 theora_decoder_select="vp3_decoder"
1786 tiff_decoder_suggest="zlib"
1787 tiff_encoder_suggest="zlib"
1788 thp_decoder_select="mjpeg_decoder"
1789 truehd_decoder_select="mlp_decoder"
1790 truemotion2_decoder_select="dsputil"
1791 truespeech_decoder_select="dsputil"
1792 tscc_decoder_deps="zlib"
1793 twinvq_decoder_select="mdct lsp sinewin"
1794 utvideo_decoder_select="dsputil"
1795 utvideo_encoder_select="dsputil huffman"
1796 vble_decoder_select="dsputil"
1797 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1798 vc1image_decoder_select="vc1_decoder"
1799 vorbis_decoder_select="mdct"
1800 vorbis_encoder_select="mdct"
1801 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1802 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1803 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1804 vp6a_decoder_select="vp6_decoder"
1805 vp6f_decoder_select="vp6_decoder"
1806 vp8_decoder_select="h264pred videodsp"
1807 vp9_decoder_select="videodsp"
1808 webp_decoder_select="vp8_decoder"
1809 wmapro_decoder_select="mdct sinewin"
1810 wmav1_decoder_select="mdct sinewin"
1811 wmav1_encoder_select="mdct sinewin"
1812 wmav2_decoder_select="mdct sinewin"
1813 wmav2_encoder_select="mdct sinewin"
1814 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1815 wmv1_decoder_select="h263_decoder"
1816 wmv1_encoder_select="h263_encoder"
1817 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1818 wmv2_encoder_select="h263_encoder"
1819 wmv3_decoder_select="vc1_decoder"
1820 wmv3image_decoder_select="wmv3_decoder"
1821 zerocodec_decoder_deps="zlib"
1822 zlib_decoder_deps="zlib"
1823 zlib_encoder_deps="zlib"
1824 zmbv_decoder_deps="zlib"
1825 zmbv_encoder_deps="zlib"
1827 # hardware accelerators
1828 dxva2_deps="dxva2api_h"
1829 vaapi_deps="va_va_h"
1830 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1831 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1832 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1834 h263_vaapi_hwaccel_deps="vaapi"
1835 h263_vaapi_hwaccel_select="h263_decoder"
1836 h263_vdpau_hwaccel_deps="vdpau"
1837 h263_vdpau_hwaccel_select="h263_decoder"
1838 h264_dxva2_hwaccel_deps="dxva2"
1839 h264_dxva2_hwaccel_select="h264_decoder"
1840 h264_vaapi_hwaccel_deps="vaapi"
1841 h264_vaapi_hwaccel_select="h264_decoder"
1842 h264_vda_hwaccel_deps="vda"
1843 h264_vda_hwaccel_select="h264_decoder"
1844 h264_vdpau_hwaccel_deps="vdpau"
1845 h264_vdpau_hwaccel_select="h264_decoder"
1846 mpeg1_vdpau_hwaccel_deps="vdpau"
1847 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1848 mpeg2_dxva2_hwaccel_deps="dxva2"
1849 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1850 mpeg2_vaapi_hwaccel_deps="vaapi"
1851 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1852 mpeg2_vdpau_hwaccel_deps="vdpau"
1853 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1854 mpeg4_vaapi_hwaccel_deps="vaapi"
1855 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1856 mpeg4_vdpau_hwaccel_deps="vdpau"
1857 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1858 vc1_dxva2_hwaccel_deps="dxva2"
1859 vc1_dxva2_hwaccel_select="vc1_decoder"
1860 vc1_vaapi_hwaccel_deps="vaapi"
1861 vc1_vaapi_hwaccel_select="vc1_decoder"
1862 vc1_vdpau_hwaccel_deps="vdpau"
1863 vc1_vdpau_hwaccel_select="vc1_decoder"
1864 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1865 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1866 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1869 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1870 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
1871 mpegvideo_parser_select="error_resilience mpegvideo"
1872 vc1_parser_select="mpegvideo"
1874 # external libraries
1875 libfaac_encoder_deps="libfaac"
1876 libfaac_encoder_select="audio_frame_queue"
1877 libfdk_aac_decoder_deps="libfdk_aac"
1878 libfdk_aac_encoder_deps="libfdk_aac"
1879 libfdk_aac_encoder_select="audio_frame_queue"
1880 libgsm_decoder_deps="libgsm"
1881 libgsm_encoder_deps="libgsm"
1882 libgsm_ms_decoder_deps="libgsm"
1883 libgsm_ms_encoder_deps="libgsm"
1884 libilbc_decoder_deps="libilbc"
1885 libilbc_encoder_deps="libilbc"
1886 libmp3lame_encoder_deps="libmp3lame"
1887 libmp3lame_encoder_select="audio_frame_queue"
1888 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1889 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1890 libopencore_amrnb_encoder_select="audio_frame_queue"
1891 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1892 libopenjpeg_decoder_deps="libopenjpeg"
1893 libopenjpeg_encoder_deps="libopenjpeg"
1894 libopus_decoder_deps="libopus"
1895 libopus_encoder_deps="libopus"
1896 libopus_encoder_select="audio_frame_queue"
1897 libschroedinger_decoder_deps="libschroedinger"
1898 libschroedinger_encoder_deps="libschroedinger"
1899 libspeex_decoder_deps="libspeex"
1900 libspeex_encoder_deps="libspeex"
1901 libspeex_encoder_select="audio_frame_queue"
1902 libtheora_encoder_deps="libtheora"
1903 libvo_aacenc_encoder_deps="libvo_aacenc"
1904 libvo_aacenc_encoder_select="audio_frame_queue"
1905 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1906 libvorbis_encoder_deps="libvorbis"
1907 libvorbis_encoder_select="audio_frame_queue"
1908 libvpx_vp8_decoder_deps="libvpx"
1909 libvpx_vp8_encoder_deps="libvpx"
1910 libvpx_vp9_decoder_deps="libvpx"
1911 libvpx_vp9_encoder_deps="libvpx"
1912 libwavpack_encoder_deps="libwavpack"
1913 libwebp_encoder_deps="libwebp"
1914 libx264_encoder_deps="libx264"
1915 libx265_encoder_deps="libx265"
1916 libxavs_encoder_deps="libxavs"
1917 libxvid_encoder_deps="libxvid"
1920 ac3_demuxer_select="ac3_parser"
1921 asf_demuxer_select="riffdec"
1922 asf_muxer_select="riffenc"
1923 asf_stream_muxer_select="asf_muxer"
1924 avi_demuxer_select="riffdec"
1925 avi_muxer_select="riffenc"
1926 avisynth_demuxer_deps="avisynth"
1927 avisynth_demuxer_select="riffdec"
1928 caf_demuxer_select="riffdec"
1929 dirac_demuxer_select="dirac_parser"
1930 dxa_demuxer_select="riffdec"
1931 eac3_demuxer_select="ac3_parser"
1932 f4v_muxer_select="mov_muxer"
1933 flac_demuxer_select="flac_parser"
1934 hds_muxer_select="flv_muxer"
1935 hls_muxer_select="mpegts_muxer"
1936 ipod_muxer_select="mov_muxer"
1937 ismv_muxer_select="mov_muxer"
1938 matroska_audio_muxer_select="matroska_muxer"
1939 matroska_demuxer_select="riffdec"
1940 matroska_demuxer_suggest="bzlib lzo zlib"
1941 matroska_muxer_select="riffenc"
1942 mmf_muxer_select="riffenc"
1943 mov_demuxer_select="riffdec"
1944 mov_demuxer_suggest="zlib"
1945 mov_muxer_select="riffenc rtpenc_chain"
1946 mp3_demuxer_select="mpegaudio_parser"
1947 mp4_muxer_select="mov_muxer"
1948 mpegts_muxer_select="adts_muxer latm_muxer"
1949 mpegtsraw_demuxer_select="mpegts_demuxer"
1950 mxf_d10_muxer_select="mxf_muxer"
1951 nut_muxer_select="riffenc"
1952 nuv_demuxer_select="riffdec"
1953 ogg_demuxer_select="golomb"
1954 psp_muxer_select="mov_muxer"
1955 rtp_demuxer_select="sdp_demuxer"
1956 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1957 rtsp_demuxer_select="http_protocol rtpdec"
1958 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1959 sap_demuxer_select="sdp_demuxer"
1960 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1961 sdp_demuxer_select="rtpdec"
1962 smoothstreaming_muxer_select="ismv_muxer"
1963 spdif_muxer_select="aac_parser"
1964 tak_demuxer_select="tak_parser"
1965 tg2_muxer_select="mov_muxer"
1966 tgp_muxer_select="mov_muxer"
1967 w64_demuxer_select="wav_demuxer"
1968 wav_demuxer_select="riffdec"
1969 wav_muxer_select="riffenc"
1970 webm_muxer_select="riffenc"
1971 wtv_demuxer_select="riffdec"
1972 xmv_demuxer_select="riffdec"
1973 xwma_demuxer_select="riffdec"
1976 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1977 alsa_outdev_deps="alsa_asoundlib_h"
1978 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1979 dv1394_indev_deps="dv1394"
1980 dv1394_indev_select="dv_demuxer"
1981 fbdev_indev_deps="linux_fb_h"
1982 jack_indev_deps="jack_jack_h pthreads"
1983 libcdio_indev_deps="libcdio"
1984 libdc1394_indev_deps="libdc1394"
1985 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1986 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1987 pulse_indev_deps="libpulse"
1988 sndio_indev_deps="sndio_h"
1989 sndio_outdev_deps="sndio_h"
1990 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1991 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1992 vfwcap_indev_extralibs="-lavicap32"
1993 x11grab_indev_deps="x11grab XShmCreateImage"
1996 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1997 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1998 ffrtmpcrypt_protocol_select="tcp_protocol"
1999 ffrtmphttp_protocol_deps="!librtmp_protocol"
2000 ffrtmphttp_protocol_select="http_protocol"
2001 gopher_protocol_select="network"
2002 httpproxy_protocol_select="tcp_protocol"
2003 http_protocol_select="tcp_protocol"
2004 https_protocol_select="tls_protocol"
2005 librtmp_protocol_deps="librtmp"
2006 librtmpe_protocol_deps="librtmp"
2007 librtmps_protocol_deps="librtmp"
2008 librtmpt_protocol_deps="librtmp"
2009 librtmpte_protocol_deps="librtmp"
2010 mmsh_protocol_select="http_protocol"
2011 mmst_protocol_select="network"
2012 rtmp_protocol_deps="!librtmp_protocol"
2013 rtmp_protocol_select="tcp_protocol"
2014 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2015 rtmps_protocol_deps="!librtmp_protocol"
2016 rtmps_protocol_select="tls_protocol"
2017 rtmpt_protocol_select="ffrtmphttp_protocol"
2018 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2019 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2020 rtp_protocol_select="udp_protocol"
2021 sctp_protocol_deps="struct_sctp_event_subscribe"
2022 sctp_protocol_select="network"
2023 srtp_protocol_select="rtp_protocol"
2024 tcp_protocol_select="network"
2025 tls_protocol_deps_any="openssl gnutls"
2026 tls_protocol_select="tcp_protocol"
2027 udp_protocol_select="network"
2028 unix_protocol_deps="sys_un_h"
2029 unix_protocol_select="network"
2032 blackframe_filter_deps="gpl"
2033 boxblur_filter_deps="gpl"
2034 cropdetect_filter_deps="gpl"
2035 delogo_filter_deps="gpl"
2036 drawtext_filter_deps="libfreetype"
2037 frei0r_filter_deps="frei0r dlopen"
2038 frei0r_filter_extralibs='$ldl'
2039 frei0r_src_filter_deps="frei0r dlopen"
2040 frei0r_src_filter_extralibs='$ldl'
2041 hqdn3d_filter_deps="gpl"
2042 interlace_filter_deps="gpl"
2043 resample_filter_deps="avresample"
2044 ocv_filter_deps="libopencv"
2045 scale_filter_deps="swscale"
2048 avcodec_example_deps="avcodec avutil"
2049 filter_audio_example_deps="avfilter avutil"
2050 metadata_example_deps="avformat avutil"
2051 output_example_deps="avcodec avformat avutil swscale"
2052 transcode_aac_example_deps="avcodec avformat avresample"
2055 avcodec_deps="avutil"
2056 avdevice_deps="avutil avcodec avformat"
2057 avfilter_deps="avutil"
2058 avformat_deps="avutil avcodec"
2059 avresample_deps="avutil"
2060 swscale_deps="avutil"
2063 avconv_deps="avcodec avfilter avformat avresample swscale"
2064 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2065 fps_filter null_filter resample_filter scale_filter
2066 setpts_filter trim_filter"
2067 avplay_deps="avcodec avformat avresample swscale sdl"
2068 avplay_libs='$sdl_libs'
2069 avplay_select="rdft"
2070 avprobe_deps="avcodec avformat"
2071 avserver_deps="avformat fork !shared"
2072 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2076 texi2html_deps="doc"
2078 # default parameters
2080 logfile="config.log"
2082 # installation paths
2083 prefix_default="/usr/local"
2084 bindir_default='${prefix}/bin'
2085 datadir_default='${prefix}/share/avconv'
2086 docdir_default='${prefix}/share/doc/libav'
2087 incdir_default='${prefix}/include'
2088 libdir_default='${prefix}/lib'
2089 mandir_default='${prefix}/share/man'
2090 shlibdir_default="$libdir_default"
2095 host_cc_default="gcc"
2100 pkg_config_default=pkg-config
2108 arch_default=$(uname -m)
2112 target_os_default=$(tolower $(uname -s))
2113 host_os=$target_os_default
2115 # configurable options
2116 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2121 enable optimizations
2122 enable safe_bitstream_reader
2124 enable swscale_alpha
2126 # By default, enable only those hwaccels that have no external dependencies.
2130 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2133 FULLNAME='$(NAME)$(BUILDSUF)'
2134 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2137 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2138 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2139 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2140 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2141 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2142 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2162 host_cflags_filter=echo
2163 host_ldflags_filter=echo
2165 target_path='$(CURDIR)'
2167 # since the object filename is not given with the -MM flag, the compiler
2168 # is only able to print the basename, and we must add the path ourselves
2169 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2173 if test -f configure; then
2176 source_path=$(cd $(dirname "$0"); pwd)
2177 echo "$source_path" | grep -q '[[:blank:]]' &&
2178 die "Out of tree builds are impossible with whitespace in source path."
2179 test -e "$source_path/config.h" &&
2180 die "Out of tree builds are impossible with config.h in source dir."
2187 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2193 file=$source_path/$3
2194 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2197 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2198 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2199 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2200 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2201 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2202 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2203 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2204 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2205 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2206 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2207 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2223 for n in $COMPONENT_LIST; do
2224 v=$(toupper ${n%s})_LIST
2226 eval ${n}_if_any="\$$v"
2229 enable $ARCH_EXT_LIST
2232 echo "Unknown option \"$1\"."
2233 echo "See $0 --help for available options."
2238 cat | tr ' ' '\n' | sort | pr -r -3 -t
2244 echo $* | sed s/$suffix//g | print_3_columns
2256 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2257 echo "prob ${prob:-0.5}"
2265 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2266 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2276 add_extralibs $optval
2279 disable $INDEV_LIST $OUTDEV_LIST
2282 debuglevel="$optval"
2285 disable $PROGRAM_LIST
2287 --disable-everything)
2288 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2291 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2292 disable $LIBRARY_LIST $PROGRAM_LIST doc
2294 --enable-random|--disable-random)
2295 action=${opt%%-random}
2296 do_random ${action#--} $COMPONENT_LIST
2298 --enable-random=*|--disable-random=*)
2299 action=${opt%%-random=*}
2300 do_random ${action#--} $optval
2302 --enable-*=*|--disable-*=*)
2303 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2304 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2305 eval list=\$$(toupper $thing)_LIST
2306 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2307 $action $(filter "$name" $list)
2309 --enable-?*|--disable-?*)
2310 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2311 if is_in $option $COMPONENT_LIST; then
2312 test $action = disable && action=unset
2313 eval $action \$$(toupper ${option%s})_LIST
2314 elif is_in $option $CMDLINE_SELECT; then
2321 NAME="${opt#--list-}"
2322 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2324 eval show_list $NAME \$$(toupper $NAME)_LIST
2326 --help|-h) show_help
2329 optname="${opt%%=*}"
2330 optname="${optname#--}"
2331 optname=$(echo "$optname" | sed 's/-/_/g')
2332 if is_in $optname $CMDLINE_SET; then
2333 eval $optname='$optval'
2334 elif is_in $optname $CMDLINE_APPEND; then
2335 append $optname "$optval"
2343 disabled logging && logfile=/dev/null
2345 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2348 test -n "$cross_prefix" && enable cross_compile
2350 if enabled cross_compile; then
2351 test -n "$arch" && test -n "$target_os" ||
2352 die "Must specify target arch and OS when cross-compiling"
2355 ar_default="${cross_prefix}${ar_default}"
2356 cc_default="${cross_prefix}${cc_default}"
2357 nm_default="${cross_prefix}${nm_default}"
2358 pkg_config_default="${cross_prefix}${pkg_config_default}"
2359 ranlib="${cross_prefix}${ranlib}"
2360 strip="${cross_prefix}${strip}"
2362 sysinclude_default="${sysroot}/usr/include"
2364 case "$toolchain" in
2367 add_cflags -fsanitize=address
2368 add_ldflags -fsanitize=address
2372 add_cflags -fsanitize=thread -pie
2373 add_ldflags -fsanitize=thread -pie
2377 add_cflags -fsanitize=undefined
2378 add_ldflags -fsanitize=undefined
2382 add_cflags -fsanitize=address
2383 add_ldflags -fsanitize=address
2387 add_cflags -fsanitize=thread -pie -fPIC
2388 add_ldflags -fsanitize=thread -pie -fPIC
2392 add_cflags -fsanitize=undefined
2393 add_ldflags -fsanitize=undefined
2396 target_exec_default="valgrind"
2397 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2400 target_exec_default="valgrind"
2401 target_exec_args="--track-origins=yes --leak-check=full"
2404 # Check whether the current MSVC version needs the C99 converter.
2405 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2406 # support enough of C99 to build libav. Default to the new
2407 # behaviour if the regexp was unable to match anything, since this
2408 # successfully parses the version number of existing supported
2409 # versions that require the converter (MSVC 2010 and 2012).
2410 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2411 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2414 cc_default="c99wrap cl"
2417 nm_default="dumpbin -symbols"
2419 target_os_default="win32"
2420 # Use a relative path for TMPDIR. This makes sure all the
2421 # ffconf temp files are written with a relative path, avoiding
2422 # issues with msys/win32 path conversion for MSVC parameters
2423 # such as -Fo<file> or -out:<file>.
2429 nm_default="dumpbin -symbols"
2431 target_os_default="win32"
2435 add_cflags -fprofile-arcs -ftest-coverage
2436 add_ldflags -fprofile-arcs -ftest-coverage
2439 add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2440 add_ldflags -Wl,-z,relro -Wl,-z,now
2443 die "Unknown toolchain $toolchain"
2447 set_default arch cc pkg_config sysinclude target_exec target_os
2448 enabled cross_compile || host_cc_default=$cc
2451 if ! $pkg_config --version >/dev/null 2>&1; then
2452 warn "$pkg_config not found, library detection may fail."
2458 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2462 EXESUF=$(exesuf $target_os)
2463 HOSTEXESUF=$(exesuf $host_os)
2465 # set temporary file name
2466 : ${TMPDIR:=$TEMPDIR}
2470 if ! check_cmd mktemp -u XXXXXX; then
2471 # simple replacement for missing mktemp
2472 # NOT SAFE FOR GENERAL USE
2474 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2479 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2480 (set -C; exec > $tmp) 2>/dev/null ||
2481 die "Unable to create temporary file in $TMPDIR."
2482 append TMPFILES $tmp
2486 trap 'rm -f -- $TMPFILES' EXIT
2490 tmpfile TMPE $EXESUF
2501 # make sure we can execute files in $TMPDIR
2502 cat > $TMPSH 2>> $logfile <<EOF
2505 chmod +x $TMPSH >> $logfile 2>&1
2506 if ! $TMPSH >> $logfile 2>&1; then
2508 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2509 variable to another directory and make sure that it is not mounted noexec.
2511 die "Sanity test failed."
2517 -std=c99) echo -c99 ;;
2518 -mcpu=*) echo -arch ${flag#*=} ;;
2519 -mieee) echo -ieee ;;
2520 -O*|-fast) echo $flag ;;
2521 -fno-math-errno) echo -assume nomath_errno ;;
2523 -Wall) echo -msg_enable level2 ;;
2524 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2525 -Wl,*) echo $flag ;;
2535 -Wno-switch) echo -Wno-switch-enum ;;
2536 -Wno-format-zero-length) ;;
2537 -Wdisabled-optimization) ;;
2538 -Wno-pointer-sign) echo -Wno-other ;;
2544 msvc_common_flags(){
2547 # In addition to specifying certain flags under the compiler
2548 # specific filters, they must be specified here as well or else the
2549 # generic catch all at the bottom will print the original flag.
2553 -fomit-frame-pointer) ;;
2557 -fno-signed-zeros) ;;
2561 -lz) echo zlib.lib ;;
2562 -lavifil32) echo vfw32.lib ;;
2563 -lavicap32) echo vfw32.lib user32.lib ;;
2564 -l*) echo ${flag#-l}.lib ;;
2571 msvc_common_flags "$@"
2574 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2575 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2576 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2583 msvc_common_flags "$@"
2586 # Despite what Intel's documentation says -Wall, which is supported
2587 # on Windows, does enable remarks so disable them here.
2588 -Wall) echo $flag -Qdiag-disable:remark ;;
2589 -std=c99) echo -Qstd=c99 ;;
2597 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2598 -fomit-frame-pointer) echo -Mnoframe ;;
2609 case "${flag#*=}" in
2610 native) echo -xtarget=native ;;
2611 v9|niagara) echo -xarch=sparc ;;
2612 ultrasparc) echo -xarch=sparcvis ;;
2613 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2614 i586|pentium) echo -xchip=pentium ;;
2615 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2616 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2617 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2618 pentium4*) echo -xtarget=pentium4 ;;
2619 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2620 *-sse3) echo -xarch=sse3 ;;
2621 core2) echo -xarch=ssse3 -xchip=core2 ;;
2622 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2623 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2624 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2625 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2626 k8|opteron|athlon64|athlon-fx)
2627 echo -xarch=sse2a ;;
2628 athlon*) echo -xarch=pentium_proa ;;
2631 -std=c99) echo -xc99 ;;
2632 -fomit-frame-pointer) echo -xregs=frameptr ;;
2633 -fPIC) echo -KPIC -xcode=pic32 ;;
2634 -W*,*) echo $flag ;;
2635 -f*-*|-W*|-mimpure-text) ;;
2646 case "${flag#*=}" in
2647 armv7-a|cortex-a*) echo -mv=7a8 ;;
2648 armv7-r|cortex-r*) echo -mv=7r4 ;;
2649 armv7-m|cortex-m*) echo -mv=7m3 ;;
2650 armv6*|arm11*) echo -mv=6 ;;
2651 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2653 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2656 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2657 -mfpu=vfp) echo --float_support=vfpv2 ;;
2658 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2659 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2660 -msoft-float) echo --float_support=vfplib ;;
2661 -O[0-3]|-mf=*) echo $flag ;;
2663 -pds=*) echo $flag ;;
2664 -D*|-I*) echo $flag ;;
2665 --gcc|--abi=*) echo $flag ;;
2675 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2676 unset _ld_o _ldflags _ld_lib _ld_path
2677 unset _depflags _DEPCMD _DEPFLAGS
2680 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2682 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2683 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2684 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2687 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2689 gcc_version=$($_cc --version | head -n1)
2690 gcc_basever=$($_cc -dumpversion)
2691 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2692 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2693 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2694 if ! $_cc -dumpversion | grep -q '^2\.'; then
2695 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2699 elif $_cc --version 2>/dev/null | grep -q ^icc; then
2701 _ident=$($_cc --version | head -n1)
2706 elif $_cc -v 2>&1 | grep -q xlc; then
2708 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2710 _cflags_size='-O5 -qcompact'
2711 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2713 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2715 _cflags_speed='-fast'
2717 _flags_filter=ccc_flags
2718 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2719 test -d "$sysroot" || die "No valid sysroot specified."
2721 _ident=$($_cc --vsn | head -n1)
2722 armcc_conf="$PWD/armcc.conf"
2723 $_cc --arm_linux_configure \
2724 --arm_linux_config_file="$armcc_conf" \
2725 --configure_sysroot="$sysroot" \
2726 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2727 die "Error creating armcc configuration file."
2728 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2729 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2730 as_default="${cross_prefix}gcc"
2734 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2736 _ident=$($_cc -version | head -n1 | tr -s ' ')
2737 _flags='--gcc --abi=eabi -me'
2740 _depflags='-ppa -ppd=$(@:.o=.d)'
2741 _cflags_speed='-O3 -mf=5'
2742 _cflags_size='-O3 -mf=2'
2743 _flags_filter=tms470_flags
2744 elif $_cc -v 2>&1 | grep -q clang; then
2746 _ident=$($_cc --version | head -n1)
2747 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2750 elif $_cc -V 2>&1 | grep -q Sun; then
2752 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2753 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2754 _DEPFLAGS='-xM1 -xc99'
2757 _cflags_size='-O5 -xspace'
2758 _flags_filter=suncc_flags
2759 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2761 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2762 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2765 _flags_filter='filter_out -Wdisabled-optimization'
2766 elif $_cc -v 2>&1 | grep -q Open64; then
2768 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2769 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2772 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2773 elif $_cc -V 2>&1 | grep -q Portland; then
2775 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2776 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2777 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2778 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2780 _flags_filter=pgi_flags
2781 elif $_cc 2>&1 | grep -q Microsoft; then
2783 _ident=$($cc 2>&1 | head -n1)
2784 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2785 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2788 if $_cc 2>&1 | grep -q Linker; then
2795 _flags_filter=msvc_flags
2797 _ld_path='-libpath:'
2799 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2800 if [ $pfx = hostcc ]; then
2801 append _cflags -Dsnprintf=_snprintf
2803 elif $_cc 2>&1 | grep -q Intel; then
2805 _ident=$($cc 2>&1 | head -n1)
2806 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2807 # Not only is O3 broken on 13.x+ but it is slower on all previous
2808 # versions (tested) as well.
2810 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2811 if $_cc 2>&1 | grep -q Linker; then
2818 _flags_filter=icl_flags
2820 _ld_path='-libpath:'
2821 # -Qdiag-error to make icl error when seeing certain unknown arguments
2822 _flags='-nologo -Qdiag-error:4044,10157'
2823 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2824 # with MSVC which enables it by default.
2825 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2826 if [ $pfx = hostcc ]; then
2827 append _cflags -Dsnprintf=_snprintf
2829 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2831 _ident=$($_cc --version | head -n1)
2835 _flags_filter=cparser_flags
2838 eval ${pfx}_type=\$_type
2839 eval ${pfx}_ident=\$_ident
2843 eval ${1}_C=\${_cc_c-\${${1}_C}}
2844 eval ${1}_E=\${_cc_e-\${${1}_E}}
2845 eval ${1}_O=\${_cc_o-\${${1}_O}}
2847 if [ -n "$_depflags" ]; then
2848 eval ${1}_DEPFLAGS=\$_depflags
2850 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2851 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2852 eval DEP${1}FLAGS=\$_flags
2857 cflags_filter=$_flags_filter
2858 cflags_speed=$_cflags_speed
2859 cflags_size=$_cflags_size
2860 cflags_noopt=$_cflags_noopt
2861 add_cflags $_flags $_cflags
2862 cc_ldflags=$_ldflags
2865 probe_cc hostcc "$host_cc"
2866 host_cflags_filter=$_flags_filter
2867 add_host_cflags $_flags $_cflags
2870 test -n "$cc_type" && enable $cc_type ||
2871 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2873 : ${as_default:=$cc}
2874 : ${dep_cc_default:=$cc}
2875 : ${ld_default:=$cc}
2876 : ${host_ld_default:=$host_cc}
2877 set_default ar as dep_cc ld host_ld
2880 asflags_filter=$_flags_filter
2881 add_asflags $_flags $_cflags
2885 ldflags_filter=$_flags_filter
2886 add_ldflags $_flags $_ldflags
2887 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2889 LD_LIB=${_ld_lib-$LD_LIB}
2890 LD_PATH=${_ld_path-$LD_PATH}
2892 probe_cc hostld "$host_ld"
2893 host_ldflags_filter=$_flags_filter
2894 add_host_ldflags $_flags $_ldflags
2895 HOSTLD_O=${_ld_o-$HOSTLD_O}
2897 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2898 probe_cc depcc "$dep_cc"
2899 CCDEP=${_DEPCMD:-$DEPCMD}
2900 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2904 if $ar 2>&1 | grep -q Microsoft; then
2907 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2910 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2911 arflags='-Xany -r -c'
2918 add_cflags $extra_cflags
2919 add_asflags $extra_cflags
2921 if test -n "$sysroot"; then
2924 add_cppflags --sysroot="$sysroot"
2925 add_ldflags --sysroot="$sysroot"
2928 add_cppflags -I"$sysinclude"
2929 add_ldflags --sysroot="$sysroot"
2934 if test "$cpu" = host; then
2935 enabled cross_compile &&
2936 die "--cpu=host makes no sense when cross-compiling."
2941 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2943 s/.*$1=\\([^ ]*\\).*/\\1/
2948 cpu=$(check_native -march || check_native -mcpu)
2952 test "${cpu:-host}" = host &&
2953 die "--cpu=host not supported with compiler $cc"
2956 # Deal with common $arch aliases
2970 "Power Macintosh"|ppc*|powerpc*)
2985 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2990 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2993 # Add processor-specific flags
2994 if enabled aarch64; then
2998 cpuflags="-march=$cpu"
3001 cpuflags="-mcpu=$cpu"
3005 elif enabled alpha; then
3007 cpuflags="-mcpu=$cpu"
3009 elif enabled arm; then
3012 check_cpp_condition stddef.h \
3013 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3018 if check_arm_arch 4; then echo armv4;
3019 elif check_arm_arch 4T; then echo armv4t;
3020 elif check_arm_arch 5; then echo armv5;
3021 elif check_arm_arch 5E; then echo armv5e;
3022 elif check_arm_arch 5T; then echo armv5t;
3023 elif check_arm_arch 5TE; then echo armv5te;
3024 elif check_arm_arch 5TEJ; then echo armv5te;
3025 elif check_arm_arch 6; then echo armv6;
3026 elif check_arm_arch 6J; then echo armv6j;
3027 elif check_arm_arch 6K; then echo armv6k;
3028 elif check_arm_arch 6Z; then echo armv6z;
3029 elif check_arm_arch 6ZK; then echo armv6zk;
3030 elif check_arm_arch 6T2; then echo armv6t2;
3031 elif check_arm_arch 7; then echo armv7;
3032 elif check_arm_arch 7A 7_A; then echo armv7-a;
3033 elif check_arm_arch 7R 7_R; then echo armv7-r;
3034 elif check_arm_arch 7M 7_M; then echo armv7-m;
3035 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3036 elif check_arm_arch 8A 8_A; then echo armv8-a;
3040 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3044 cpuflags="-march=$cpu"
3045 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3048 cpuflags="-mcpu=$cpu"
3050 cortex-a*) subarch=armv7a ;;
3051 cortex-r*) subarch=armv7r ;;
3052 cortex-m*) enable thumb; subarch=armv7m ;;
3053 arm11*) subarch=armv6 ;;
3054 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3055 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3056 *) subarch=$(probe_arm_arch) ;;
3062 armv5t*) enable fast_clz ;;
3063 armv[6-8]*) enable fast_clz fast_unaligned ;;
3066 elif enabled avr32; then
3071 cpuflags="-mpart=$cpu"
3075 cpuflags="-march=$cpu"
3079 cpuflags="-mcpu=$cpu"
3083 cpuflags="-march=$cpu"
3087 elif enabled bfin; then
3089 cpuflags="-mcpu=$cpu"
3091 elif enabled mips; then
3093 cpuflags="-march=$cpu"
3095 elif enabled ppc; then
3097 case $(tolower $cpu) in
3098 601|ppc601|powerpc601)
3099 cpuflags="-mcpu=601"
3102 603*|ppc603*|powerpc603*)
3103 cpuflags="-mcpu=603"
3106 604*|ppc604*|powerpc604*)
3107 cpuflags="-mcpu=604"
3110 g3|75*|ppc75*|powerpc75*)
3111 cpuflags="-mcpu=750"
3114 g4|745*|ppc745*|powerpc745*)
3115 cpuflags="-mcpu=7450"
3117 74*|ppc74*|powerpc74*)
3118 cpuflags="-mcpu=7400"
3120 g5|970|ppc970|powerpc970)
3121 cpuflags="-mcpu=970"
3124 cpuflags="-mcpu=$cpu"
3127 cpuflags="-mcpu=cell"
3131 cpuflags="-mcpu=e500mc"
3135 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3139 cpuflags="-mcpu=8540 -mhard-float"
3144 elif enabled sparc; then
3147 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3148 cpuflags="-mcpu=$cpu"
3151 ultrasparc*|niagara[234])
3152 cpuflags="-mcpu=$cpu"
3156 elif enabled x86; then
3160 cpuflags="-march=$cpu"
3163 # targets that do NOT support nopl and conditional mov (cmov)
3164 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3165 cpuflags="-march=$cpu"
3168 # targets that do support nopl and conditional mov (cmov)
3169 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*)
3170 cpuflags="-march=$cpu"
3174 # targets that do support conditional mov but on which it's slow
3175 pentium4|pentium4m|prescott|nocona)
3176 cpuflags="-march=$cpu"
3184 if [ "$cpu" != generic ]; then
3185 add_cflags $cpuflags
3186 add_asflags $cpuflags
3189 # compiler sanity check
3191 int main(void){ return 0; }
3193 if test "$?" != 0; then
3194 echo "$cc is unable to create an executable file."
3195 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3196 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3197 echo "Only do this if you know what cross compiling means."
3199 die "C compiler test failed."
3202 add_cppflags -D_ISOC99_SOURCE
3203 check_cflags -std=c99
3204 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3207 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3211 add_host_cppflags -D_ISOC99_SOURCE
3212 check_host_cflags -std=c99
3213 check_host_cflags -Wall
3214 check_host_cflags -O3
3220 check_code cc "" "int test[2*($expr) - 1]" &&
3221 subarch=$arch64 || subarch=$arch32
3229 check_64bit mips mips64 '_MIPS_SIM > 1'
3233 check_64bit parisc parisc64 'sizeof(void *) > 4'
3237 check_64bit ppc ppc64 'sizeof(void *) > 4'
3241 check_64bit s390 s390x 'sizeof(void *) > 4'
3245 check_64bit sparc sparc64 'sizeof(void *) > 4'
3249 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3250 if test "$subarch" = "x86_64"; then
3257 enabled spic && enable_weak pic
3263 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3264 enabled shared && add_ldflags -Wl,-brtl
3267 prefix_default="/boot/common"
3268 network_extralibs="-lnetwork"
3272 SHFLAGS='-shared -Wl,-h,$$(@F)'
3273 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3274 network_extralibs="-lsocket -lnsl"
3275 # When using suncc to build, the Solaris linker will mark
3276 # an executable with each instruction set encountered by
3277 # the Solaris assembler. As our libraries contain their own
3278 # guards for processor-specific code, instead suppress
3279 # generation of the HWCAPS ELF section on Solaris x86 only.
3280 enabled_all suncc x86 &&
3281 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3282 add_ldflags -Wl,-M,mapfile
3283 nm_default='nm -P -g'
3287 oss_indev_extralibs="-lossaudio"
3288 oss_outdev_extralibs="-lossaudio"
3293 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3295 oss_indev_extralibs="-lossaudio"
3296 oss_outdev_extralibs="-lossaudio"
3304 add_extralibs -lpoll -lgnugetopt
3307 gas="gas-preprocessor.pl $cc"
3308 enabled ppc && add_asflags -force_cpusubtype_ALL
3309 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3310 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3311 add_ldflags -Wl,-dynamic,-search_paths_first
3313 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3314 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3316 enabled x86_64 && objformat="macho64"
3317 enabled_any pic shared ||
3318 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3321 if test $target_os = "mingw32ce"; then
3327 if enabled x86_64; then
3328 LIBTARGET="i386:x86-64"
3329 elif enabled arm; then
3332 check_ldflags -Wl,--nxcompat
3333 check_ldflags -Wl,--dynamicbase
3334 shlibdir_default="$bindir_default"
3337 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3338 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3339 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3340 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3342 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3343 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3344 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3346 dlltool="${cross_prefix}dlltool"
3352 if enabled shared; then
3353 # Link to the import library instead of the normal static library
3356 # Cannot build both shared and static libs with MSVC or icl.
3359 shlibdir_default="$bindir_default"
3362 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3363 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3364 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3365 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3367 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3368 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3369 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3376 shlibdir_default="$bindir_default"
3379 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3380 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3381 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3383 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3384 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3388 *-dos|freedos|opendos)
3389 network_extralibs="-lsocket"
3392 add_cppflags -U__STRICT_ANSI__
3399 ranlib="echo ignoring ranlib"
3404 add_cppflags -D_GNU_SOURCE
3405 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3406 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3410 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3411 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3412 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3413 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3414 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3415 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3416 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3417 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3418 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3419 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3420 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3424 add_cppflags -D_BSD_SOURCE
3429 add_cppflags -D_QNX_SOURCE
3430 network_extralibs="-lsocket"
3435 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3436 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3437 add_ldflags -Wl,--target1-abs,--no-undefined \
3438 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3439 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3440 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3441 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3442 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3445 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3450 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3451 -D_REENTRANT_SOURCE \
3452 -D_RESEARCH_SOURCE \
3455 add_compat strtod.o strtod=avpriv_strtod
3456 network_extralibs='-lbsd'
3457 exeobjs=compat/plan9/main.o
3464 die "Unknown OS '$target_os'."
3468 # determine libc flavour
3473 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3474 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3475 eval ${pfx}libc_type=uclibc
3476 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3477 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3478 eval ${pfx}libc_type=glibc
3479 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3480 # MinGW headers can be installed on Cygwin, so check for newlib first.
3481 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3482 eval ${pfx}libc_type=newlib
3483 add_${pfx}cppflags -U__STRICT_ANSI__
3484 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3485 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3486 eval ${pfx}libc_type=mingw64
3487 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3488 eval test \$${pfx_no_}cc_type = "gcc" &&
3489 add_${pfx}cppflags -D__printf__=__gnu_printf__
3490 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3491 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3492 eval ${pfx}libc_type=mingw32
3493 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3494 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3495 die "ERROR: MinGW32 runtime version must be >= 3.15."
3496 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3497 eval test \$${pfx_no_}cc_type = "gcc" &&
3498 add_${pfx}cppflags -D__printf__=__gnu_printf__
3499 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3500 eval ${pfx}libc_type=msvcrt
3501 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3502 # 0x601 by default unless something else is set by the user.
3503 # This can easily lead to us detecting functions only present
3504 # in such new versions and producing binaries requiring windows 7.0.
3505 # Therefore explicitly set the default to XP unless the user has
3506 # set something else on the command line.
3507 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3508 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3509 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3510 eval ${pfx}libc_type=klibc
3511 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3512 eval ${pfx}libc_type=bionic
3513 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3514 eval ${pfx}libc_type=solaris
3515 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3520 test -n "$libc_type" && enable libc_$libc_type
3522 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3526 add_compat strtod.o strtod=avpriv_strtod
3529 add_compat strtod.o strtod=avpriv_strtod
3530 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3531 _snprintf=avpriv_snprintf \
3532 vsnprintf=avpriv_vsnprintf
3536 # hacks for compiler/libc/os combinations
3538 if enabled_all tms470 libc_glibc; then
3539 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3540 add_cppflags -D__USER_LABEL_PREFIX__=
3541 add_cppflags -D__builtin_memset=memset
3542 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3543 add_cflags -pds=48 # incompatible redefinition of macro
3546 if enabled_all ccc libc_glibc; then
3547 add_ldflags -Wl,-z,now # calls to libots crash without this
3550 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3551 add_cppflags '-I\$(SRC_PATH)/compat/float'
3554 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3557 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3559 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3561 set_default $PATHS_LIST
3564 # we need to build at least one lib type
3565 if ! enabled_any static shared; then
3567 At least one library type must be built.
3568 Specify --enable-static to build the static libraries or --enable-shared to
3569 build the shared libraries as well. To only build the shared libraries specify
3570 --disable-static in addition to --enable-shared.
3575 die_license_disabled() {
3576 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3579 die_license_disabled gpl libcdio
3580 die_license_disabled gpl libx264
3581 die_license_disabled gpl libx265
3582 die_license_disabled gpl libxavs
3583 die_license_disabled gpl libxvid
3584 die_license_disabled gpl x11grab
3586 die_license_disabled nonfree libfaac
3587 die_license_disabled nonfree libfdk_aac
3588 die_license_disabled nonfree openssl
3590 die_license_disabled version3 libopencore_amrnb
3591 die_license_disabled version3 libopencore_amrwb
3592 die_license_disabled version3 libvo_aacenc
3593 die_license_disabled version3 libvo_amrwbenc
3595 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3597 disabled optimizations || check_cflags -fomit-frame-pointer
3600 disabled pic && return
3603 case "$target_os" in
3613 enabled pic && enable_weak_pic
3615 check_cc <<EOF || die "Symbol mangling check failed."
3618 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3619 extern_prefix=${sym%%ff_extern*}
3621 check_cc <<EOF && enable_weak inline_asm
3622 void foo(void) { __asm__ volatile ("" ::); }
3626 for restrict_keyword in restrict __restrict__ __restrict; do
3627 check_cc <<EOF && _restrict=$restrict_keyword && break
3628 void foo(char * $restrict_keyword p);
3632 check_cc <<EOF && enable pragma_deprecated
3633 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3636 check_cc <<EOF && enable attribute_packed
3637 struct { int x; } __attribute__((packed)) x;
3640 check_cc <<EOF && enable attribute_may_alias
3641 union { int x; } __attribute__((may_alias)) x;
3644 check_cc <<EOF || die "endian test failed"
3645 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3647 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3649 check_inline_asm inline_asm_labels '"1:\n"'
3651 if enabled aarch64; then
3652 # internal assembler in clang 3.3 does not support this instruction
3653 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
3654 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
3656 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3658 elif enabled alpha; then
3662 elif enabled arm; then
3664 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3665 enabled thumb && check_cflags -mthumb || check_cflags -marm
3668 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3670 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3671 case "${cross_prefix:-$cc}" in
3672 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3673 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3674 __asm__ (".eabi_attribute 28, 1");
3675 int main(void) { return 0; }
3678 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3681 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3682 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
3683 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3684 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
3685 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
3686 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
3688 [ $target_os = linux ] ||
3689 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3692 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3694 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3696 elif enabled mips; then
3698 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3700 elif enabled parisc; then
3702 if enabled gcc; then
3703 case $($cc -dumpversion) in
3704 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3708 elif enabled ppc; then
3710 enable local_aligned_8 local_aligned_16
3712 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3713 check_inline_asm ibm_asm '"add 0, 0, 0"'
3714 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3715 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3717 # AltiVec flags: The FSF version of GCC differs from the Apple version
3718 if enabled altivec; then
3720 check_cflags -maltivec -mabi=altivec &&
3721 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3722 check_cflags -faltivec
3724 # check if our compiler supports Motorola AltiVec C API
3725 check_cc <<EOF || disable altivec
3728 vector signed int v1 = (vector signed int) { 0 };
3729 vector signed int v2 = (vector signed int) { 1 };
3730 v1 = vec_add(v1, v2);
3735 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3738 elif enabled sparc; then
3740 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3742 elif enabled x86; then
3744 check_builtin rdtsc intrin.h "__rdtsc()"
3745 check_builtin mm_empty mmintrin.h "_mm_empty()"
3747 enable local_aligned_8 local_aligned_16
3749 # check whether EBP is available on x86
3750 # As 'i' is stored on the stack, this program will crash
3751 # if the base pointer is used to access it because the
3752 # base pointer is cleared in the inline assembly code.
3753 check_exec_crash <<EOF && enable ebp_available
3755 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3759 # check whether EBX is available on x86
3760 check_inline_asm ebx_available '""::"b"(0)' &&
3761 check_inline_asm ebx_available '"":::"%ebx"'
3763 # check whether xmm clobbers are supported
3764 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3766 # check whether binutils is new enough to compile SSSE3/MMXEXT
3767 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3768 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3770 if ! disabled_any asm mmx yasm; then
3771 if check_cmd $yasmexe --version; then
3772 enabled x86_64 && yasm_extra="-m amd64"
3773 yasm_debug="-g dwarf2"
3774 elif check_cmd nasm -v; then
3776 yasm_debug="-g -F dwarf"
3777 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3780 YASMFLAGS="-f $objformat $yasm_extra"
3781 enabled pic && append YASMFLAGS "-DPIC"
3782 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3783 case "$objformat" in
3784 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3787 check_yasm "movbe ecx, [5]" && enable yasm ||
3788 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3789 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
3790 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
3791 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3792 check_yasm "CPU amdnop" || disable cpunop
3796 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3803 if enabled asm; then
3805 check_as <<EOF && enable gnu_as || \
3806 $nogas "GNU assembler not found, install gas-preprocessor"
3814 check_ldflags -Wl,--as-needed
3816 if check_func dlopen; then
3818 elif check_func dlopen -ldl; then
3822 if ! disabled network; then
3823 check_type "sys/types.h sys/socket.h" socklen_t
3824 check_type netdb.h "struct addrinfo"
3825 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3826 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3827 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3828 check_type netinet/in.h "struct sockaddr_in6"
3829 check_type poll.h "struct pollfd"
3830 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3831 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3832 check_type netinet/sctp.h "struct sctp_event_subscribe"
3833 check_func getaddrinfo $network_extralibs
3834 check_func getservbyport $network_extralibs
3835 check_func inet_aton $network_extralibs
3836 # Prefer arpa/inet.h over winsock2
3837 if check_header arpa/inet.h ; then
3838 check_func closesocket
3839 elif check_header winsock2.h ; then
3840 check_func_headers winsock2.h closesocket -lws2 &&
3841 network_extralibs="-lws2" ||
3842 { check_func_headers winsock2.h closesocket -lws2_32 &&
3843 network_extralibs="-lws2_32"; } || disable winsock2_h network
3844 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3845 check_type ws2tcpip.h socklen_t
3846 check_type ws2tcpip.h "struct addrinfo"
3847 check_type ws2tcpip.h "struct group_source_req"
3848 check_type ws2tcpip.h "struct ip_mreq_source"
3849 check_type ws2tcpip.h "struct ipv6_mreq"
3850 check_type winsock2.h "struct pollfd"
3851 check_type ws2tcpip.h "struct sockaddr_in6"
3852 check_type ws2tcpip.h "struct sockaddr_storage"
3853 check_struct winsock2.h "struct sockaddr" sa_len
3859 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3860 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3864 check_func_headers stdlib.h getenv
3865 check_func gethrtime
3867 check_func getrusage
3868 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3869 check_func gettimeofday
3871 check_func localtime_r
3872 check_func mach_absolute_time
3873 check_func ${malloc_prefix}memalign && enable memalign
3877 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3878 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3879 check_func setrlimit
3880 check_func strerror_r
3882 check_func sched_getaffinity
3883 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3884 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3885 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3886 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3890 check_func_headers io.h setmode
3891 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3892 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3893 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3894 check_func_headers windows.h GetProcessAffinityMask
3895 check_func_headers windows.h GetProcessTimes
3896 check_func_headers windows.h GetSystemTimeAsFileTime
3897 check_func_headers windows.h MapViewOfFile
3898 check_func_headers windows.h SetConsoleTextAttribute
3899 check_func_headers windows.h Sleep
3900 check_func_headers windows.h VirtualAlloc
3902 check_header direct.h
3903 check_header dlfcn.h
3905 check_header dxva2api.h
3907 check_header mach/mach_time.h
3908 check_header malloc.h
3910 check_header sys/mman.h
3911 check_header sys/param.h
3912 check_header sys/resource.h
3913 check_header sys/select.h
3914 check_header sys/time.h
3915 check_header sys/un.h
3916 check_header unistd.h
3917 check_header vdpau/vdpau.h
3918 check_header vdpau/vdpau_x11.h
3919 check_header VideoDecodeAcceleration/VDADecoder.h
3920 check_header windows.h
3921 check_header X11/extensions/XvMClib.h
3923 if ! disabled w32threads && ! enabled pthreads; then
3924 check_func_headers "windows.h process.h" _beginthreadex &&
3925 enable w32threads || disable w32threads
3928 # check for some common methods of building with pthread support
3929 # do this before the optional library checks as some of them require pthreads
3930 if ! disabled pthreads && ! enabled w32threads; then
3932 if check_func pthread_join -pthread; then
3934 add_extralibs -pthread
3935 elif check_func pthread_join -pthreads; then
3936 add_cflags -pthreads
3937 add_extralibs -pthreads
3938 elif check_func pthread_join -lpthreadGC2; then
3939 add_extralibs -lpthreadGC2
3940 elif check_lib pthread.h pthread_join -lpthread; then
3942 elif ! check_func pthread_join; then
3947 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3948 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3950 check_lib math.h sin -lm && LIBM="-lm"
3951 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3957 for func in $MATH_FUNCS; do
3958 eval check_mathfunc $func \${${func}_args:-1}
3961 # these are off by default, so fail if requested and not available
3962 enabled avisynth && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
3963 { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
3964 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
3965 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3966 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3967 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3968 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3969 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
3970 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3971 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3972 done || die "ERROR: libgsm not found"; }
3973 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3974 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3975 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3976 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3977 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3978 enabled libopenjpeg && require_pkg_config libopenjpeg1 openjpeg.h opj_version
3979 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3980 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3981 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3982 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3983 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3984 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3985 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3986 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3987 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3989 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3990 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3991 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3992 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3993 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3994 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3995 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
3996 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
3997 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3998 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3999 die "ERROR: libx264 version must be >= 0.118."; }
4000 enabled libx265 && require_pkg_config x265 x265.h x265_encoder_encode &&
4001 { check_cpp_condition x265.h "X265_BUILD >= 9" ||
4002 die "ERROR: libx265 version must be >= 9."; }
4003 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4004 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4005 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4006 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4007 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4008 die "ERROR: openssl not found"; }
4010 if enabled gnutls; then
4011 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4012 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4016 if enabled libdc1394; then
4017 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4018 enable libdc1394_2; } ||
4019 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4020 enable libdc1394_1; } ||
4021 die "ERROR: No version of libdc1394 found "
4024 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4025 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4026 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4030 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4031 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4033 check_header linux/fb.h
4034 check_header linux/videodev2.h
4035 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4037 check_header sys/videoio.h
4039 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4040 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4041 # w32api 3.12 had it defined wrong
4042 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4044 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4045 { check_header dev/bktr/ioctl_meteor.h &&
4046 check_header dev/bktr/ioctl_bt848.h; } ||
4047 { check_header machine/ioctl_meteor.h &&
4048 check_header machine/ioctl_bt848.h; } ||
4049 { check_header dev/video/meteor/ioctl_meteor.h &&
4050 check_header dev/video/bktr/ioctl_bt848.h; } ||
4051 check_header dev/ic/bt8xx.h
4053 check_header sndio.h
4054 check_header sys/soundcard.h
4055 check_header soundcard.h
4057 enabled_any alsa_indev alsa_outdev &&
4058 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4060 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4061 check_func jack_port_get_latency_range -ljack
4063 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4065 if enabled libcdio; then
4066 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4067 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4070 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4073 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4074 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4075 { enabled xlib || die "ERROR: Xlib not found"; }
4078 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4081 enabled vdpau && enabled xlib &&
4082 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4083 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4086 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4088 # add some useful compiler flags if supported
4089 check_cflags -Wdeclaration-after-statement
4091 check_cflags -Wdisabled-optimization
4092 check_cflags -Wpointer-arith
4093 check_cflags -Wredundant-decls
4094 check_cflags -Wcast-qual
4095 check_cflags -Wwrite-strings
4096 check_cflags -Wtype-limits
4097 check_cflags -Wundef
4098 check_cflags -Wmissing-prototypes
4099 check_cflags -Wstrict-prototypes
4100 enabled extra_warnings && check_cflags -Winline
4102 check_disable_warning(){
4103 warning_flag=-W${1#-Wno-}
4104 test_cflags $warning_flag && add_cflags $1
4107 check_disable_warning -Wno-parentheses
4108 check_disable_warning -Wno-switch
4109 check_disable_warning -Wno-format-zero-length
4110 check_disable_warning -Wno-pointer-sign
4112 # add some linker flags
4113 check_ldflags -Wl,--warn-common
4114 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4115 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4117 # add some strip flags
4118 # -wN '..@*' is more selective than -x, but not available everywhere.
4119 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4121 enabled neon_clobber_test &&
4122 check_ldflags -Wl,--wrap,avcodec_open2 \
4123 -Wl,--wrap,avcodec_decode_audio4 \
4124 -Wl,--wrap,avcodec_decode_video2 \
4125 -Wl,--wrap,avcodec_decode_subtitle2 \
4126 -Wl,--wrap,avcodec_encode_audio2 \
4127 -Wl,--wrap,avcodec_encode_video2 \
4128 -Wl,--wrap,avcodec_encode_subtitle \
4129 -Wl,--wrap,avresample_convert ||
4130 disable neon_clobber_test
4132 enabled xmm_clobber_test &&
4133 check_ldflags -Wl,--wrap,avcodec_open2 \
4134 -Wl,--wrap,avcodec_decode_audio4 \
4135 -Wl,--wrap,avcodec_decode_video2 \
4136 -Wl,--wrap,avcodec_decode_subtitle2 \
4137 -Wl,--wrap,avcodec_encode_audio2 \
4138 -Wl,--wrap,avcodec_encode_video2 \
4139 -Wl,--wrap,avcodec_encode_subtitle \
4140 -Wl,--wrap,avresample_convert \
4141 -Wl,--wrap,sws_scale ||
4142 disable xmm_clobber_test
4145 if test_ldflags -Wl,--version-script,$TMPV; then
4146 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4147 check_cc <<EOF && enable symver_asm_label
4148 void ff_foo(void) __asm__ ("av_foo@VERSION");
4149 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4151 check_cc <<EOF && enable symver_gnu_asm
4152 __asm__(".symver ff_foo,av_foo@VERSION");
4153 void ff_foo(void) {}
4157 if [ -z "$optflags" ]; then
4158 if enabled small; then
4159 optflags=$cflags_size
4160 elif enabled optimizations; then
4161 optflags=$cflags_speed
4163 optflags=$cflags_noopt
4169 enabled lto && check_ldflags "$@"
4173 if enabled lto; then
4174 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4176 check_ldflags -flto $cpuflags
4179 check_optflags $optflags
4180 check_optflags -fno-math-errno
4181 check_optflags -fno-signed-zeros
4183 if enabled icc; then
4184 # Just warnings, no remarks
4186 # -wd: Disable following warnings
4187 # 144, 167, 556: -Wno-pointer-sign
4188 # 1292: attribute "foo" ignored
4189 # 1419: external declaration in primary source file
4190 # 10006: ignoring unknown option -fno-signed-zeros
4191 # 10148: ignoring unknown option -Wno-parentheses
4192 # 10156: ignoring option '-W'; no argument required
4193 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4194 # 11030: Warning unknown option --as-needed
4195 # 10156: ignoring option '-export'; no argument required
4196 check_ldflags -wd10156,11030
4197 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4198 enable ebp_available
4199 if enabled x86_32; then
4200 icc_version=$($cc -dumpversion)
4201 test ${icc_version%%.*} -ge 11 &&
4202 check_cflags -falign-stack=maintain-16-byte ||
4203 disable aligned_stack
4205 elif enabled ccc; then
4206 # disable some annoying warnings
4207 add_cflags -msg_disable bitnotint
4208 add_cflags -msg_disable mixfuncvoid
4209 add_cflags -msg_disable nonstandcast
4210 add_cflags -msg_disable unsupieee
4211 elif enabled gcc; then
4212 check_optflags -fno-tree-vectorize
4213 check_cflags -Werror=implicit-function-declaration
4214 check_cflags -Werror=missing-prototypes
4215 check_cflags -Werror=return-type
4216 check_cflags -Werror=declaration-after-statement
4217 check_cflags -Werror=vla
4218 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4219 elif enabled llvm_gcc; then
4220 check_cflags -mllvm -stack-alignment=16
4221 elif enabled clang; then
4222 check_cflags -mllvm -stack-alignment=16
4223 check_cflags -Qunused-arguments
4224 check_cflags -Werror=implicit-function-declaration
4225 check_cflags -Werror=missing-prototypes
4226 check_cflags -Werror=return-type
4227 elif enabled cparser; then
4228 add_cflags -Wno-missing-variable-declarations
4229 add_cflags -Wno-empty-statement
4230 elif enabled armcc; then
4231 # 2523: use of inline assembler is deprecated
4232 add_cflags -W${armcc_opt},--diag_suppress=2523
4233 add_cflags -W${armcc_opt},--diag_suppress=1207
4234 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4235 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4236 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4237 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4238 elif enabled tms470; then
4239 add_cflags -pds=824 -pds=837
4241 elif enabled pathscale; then
4242 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4243 elif enabled_any msvc icl; then
4244 enabled x86_32 && disable aligned_stack
4245 enabled_all x86_32 debug && add_cflags -Oy-
4246 enabled debug && add_ldflags -debug
4247 enable pragma_deprecated
4248 if enabled icl; then
4249 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4250 # (correctly) on icl 13.x.
4251 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4252 add_cflags -Qansi-alias
4253 # icl will pass the inline asm tests but inline asm is currently
4254 # not supported (build will fail)
4261 add_asflags -Qunused-arguments
4267 check_ldflags -Qunused-arguments
4273 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4276 add_cppflags -Dmain=plan9_main
4280 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4282 check_deps $CONFIG_LIST \
4287 ! enabled_any memalign posix_memalign aligned_malloc &&
4288 enabled_any $need_memalign && enable memalign_hack
4290 for thread in $THREADS_LIST; do
4291 if enabled $thread; then
4292 test -n "$thread_type" &&
4293 die "ERROR: Only one thread type must be selected." ||
4294 thread_type="$thread"
4298 echo "install prefix $prefix"
4299 echo "source path $source_path"
4300 echo "C compiler $cc"
4301 echo "C library $libc_type"
4302 if test "$host_cc" != "$cc"; then
4303 echo "host C compiler $host_cc"
4304 echo "host C library $host_libc_type"
4306 echo "ARCH $arch ($cpu)"
4307 if test "$build_suffix" != ""; then
4308 echo "build suffix $build_suffix"
4310 if test "$extra_version" != ""; then
4311 echo "version string suffix $extra_version"
4313 echo "big-endian ${bigendian-no}"
4314 echo "runtime cpu detection ${runtime_cpudetect-no}"
4315 if enabled x86; then
4316 echo "${yasmexe} ${yasm-no}"
4317 echo "MMX enabled ${mmx-no}"
4318 echo "MMXEXT enabled ${mmxext-no}"
4319 echo "3DNow! enabled ${amd3dnow-no}"
4320 echo "3DNow! extended enabled ${amd3dnowext-no}"
4321 echo "SSE enabled ${sse-no}"
4322 echo "SSSE3 enabled ${ssse3-no}"
4323 echo "AVX enabled ${avx-no}"
4324 echo "XOP enabled ${xop-no}"
4325 echo "FMA3 enabled ${fma3-no}"
4326 echo "FMA4 enabled ${fma4-no}"
4327 echo "i686 features enabled ${i686-no}"
4328 echo "CMOV is fast ${fast_cmov-no}"
4329 echo "EBX available ${ebx_available-no}"
4330 echo "EBP available ${ebp_available-no}"
4332 if enabled aarch64; then
4333 echo "NEON enabled ${neon-no}"
4334 echo "VFP enabled ${vfp-no}"
4336 if enabled arm; then
4337 echo "ARMv5TE enabled ${armv5te-no}"
4338 echo "ARMv6 enabled ${armv6-no}"
4339 echo "ARMv6T2 enabled ${armv6t2-no}"
4340 echo "VFP enabled ${vfp-no}"
4341 echo "NEON enabled ${neon-no}"
4343 if enabled ppc; then
4344 echo "AltiVec enabled ${altivec-no}"
4345 echo "PPC 4xx optimizations ${ppc4xx-no}"
4346 echo "dcbzl available ${dcbzl-no}"
4348 if enabled sparc; then
4349 echo "VIS enabled ${vis-no}"
4351 echo "debug symbols ${debug-no}"
4352 echo "optimize for size ${small-no}"
4353 echo "optimizations ${optimizations-no}"
4354 echo "static ${static-no}"
4355 echo "shared ${shared-no}"
4356 echo "new filter support ${avfilter-no}"
4357 echo "network support ${network-no}"
4358 echo "threading support ${thread_type-no}"
4359 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4360 echo "SDL support ${sdl-no}"
4361 test -n "$random_seed" &&
4362 echo "random seed ${random_seed}"
4365 echo "External libraries:"
4366 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4369 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4370 echo "Enabled ${type}s:"
4371 eval list=\$$(toupper $type)_LIST
4372 print_enabled '_*' $list | print_3_columns
4376 license="LGPL version 2.1 or later"
4377 if enabled nonfree; then
4378 license="nonfree and unredistributable"
4379 elif enabled gplv3; then
4380 license="GPL version 3 or later"
4381 elif enabled lgplv3; then
4382 license="LGPL version 3 or later"
4383 elif enabled gpl; then
4384 license="GPL version 2 or later"
4387 echo "License: $license"
4389 echo "Creating config.mak and config.h..."
4391 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4393 config_files="$TMPH config.mak"
4395 cat > config.mak <<EOF
4396 # Automatically generated by configure - do not modify!
4397 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4399 LIBDIR=\$(DESTDIR)$libdir
4400 SHLIBDIR=\$(DESTDIR)$shlibdir
4401 INCDIR=\$(DESTDIR)$incdir
4402 BINDIR=\$(DESTDIR)$bindir
4403 DATADIR=\$(DESTDIR)$datadir
4404 DOCDIR=\$(DESTDIR)$docdir
4405 MANDIR=\$(DESTDIR)$mandir
4406 SRC_PATH=$source_path
4413 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4415 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4437 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4438 STRIPFLAGS=$STRIPFLAGS
4439 YASMFLAGS=$YASMFLAGS
4440 BUILDSUF=$build_suffix
4448 EXTRA_VERSION=$extra_version
4450 CCDEP_FLAGS=$CCDEP_FLAGS
4452 ASDEP_FLAGS=$ASDEP_FLAGS
4453 CC_DEPFLAGS=$CC_DEPFLAGS
4454 AS_DEPFLAGS=$AS_DEPFLAGS
4457 HOSTCFLAGS=$host_cflags
4458 HOSTCPPFLAGS=$host_cppflags
4459 HOSTEXESUF=$HOSTEXESUF
4460 HOSTLDFLAGS=$host_ldflags
4463 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4464 HOSTCCDEP=$HOSTCCDEP
4465 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4466 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4470 TARGET_EXEC=$target_exec $target_exec_args
4471 TARGET_PATH=$target_path
4472 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4473 CFLAGS-avplay=$sdl_cflags
4474 ZLIB=$($ldflags_filter -lz)
4475 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4476 EXTRALIBS=$extralibs
4477 COMPAT_OBJS=$compat_objs
4480 LIBTARGET=${LIBTARGET}
4481 SLIBNAME=${SLIBNAME}
4482 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4483 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4484 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4485 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4486 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4487 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4488 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4489 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4490 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4495 name=$(toupper $lcname)
4496 file=$source_path/$lcname/version.h
4497 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4498 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4499 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4500 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4501 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4504 map 'get_version $v' $LIBRARY_LIST
4506 print_program_libs(){
4507 eval "program_libs=\$${1}_libs"
4508 eval echo "LIBS-${1}=${program_libs}" >> config.mak
4511 map 'print_program_libs $v' $PROGRAM_LIST
4514 /* Automatically generated by configure - do not modify! */
4515 #ifndef LIBAV_CONFIG_H
4516 #define LIBAV_CONFIG_H
4517 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4518 #define LIBAV_LICENSE "$(c_escape $license)"
4519 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4520 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4521 #define restrict $_restrict
4522 #define EXTERN_PREFIX "${extern_prefix}"
4523 #define EXTERN_ASM ${extern_prefix}
4524 #define SLIBSUF "$SLIBSUF"
4527 test -n "$malloc_prefix" &&
4528 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4530 if enabled yasm; then
4531 append config_files $TMPASM
4535 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4537 print_config ARCH_ "$config_files" $ARCH_LIST
4538 print_config HAVE_ "$config_files" $HAVE_LIST
4539 print_config CONFIG_ "$config_files" $CONFIG_LIST \
4543 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4545 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4546 cp_if_changed $TMPH config.h
4549 enabled yasm && cp_if_changed $TMPASM config.asm
4552 /* Generated by ffconf */
4553 #ifndef AVUTIL_AVCONFIG_H
4554 #define AVUTIL_AVCONFIG_H
4557 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4559 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4561 cp_if_changed $TMPH libavutil/avconfig.h
4563 test -n "$WARNINGS" && printf "\n$WARNINGS"
4565 # build pkg-config files
4567 pkgconfig_generate(){
4569 shortname=${name#lib}${build_suffix}
4574 enabled ${name#lib} || return 0
4576 cat <<EOF > $name/$name.pc
4578 exec_prefix=\${prefix}
4583 Description: $comment
4585 Requires: $(enabled shared || echo $requires)
4586 Requires.private: $(enabled shared && echo $requires)
4588 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4589 Libs.private: $(enabled shared && echo $libs)
4590 Cflags: -I\${includedir}
4592 cat <<EOF > $name/$name-uninstalled.pc
4595 libdir=\${pcfiledir}
4596 includedir=${source_path}
4599 Description: $comment
4603 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4604 Cflags: -I\${includedir}
4608 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4609 enabled movie_filter && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4610 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4611 enabled scale_filter && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4613 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4614 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4615 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4616 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4617 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4618 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4619 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"