3 # Libav configure script
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
10 # Prevent locale nonsense from breaking basic text processing.
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
23 (: ${foo%%bar}) 2> /dev/null
26 (: ${foo?}) 2> /dev/null
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
32 if test "0$FF_CONF_EXEC" -lt 1; then
34 try_exec bash "$0" "$@"
36 if test "0$FF_CONF_EXEC" -lt 2; then
38 try_exec ksh "$0" "$@"
40 if test "0$FF_CONF_EXEC" -lt 3; then
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
199 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
200 --enable-libopencv enable video filtering via libopencv [no]
201 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
202 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
203 --enable-libopus enable Opus de/encoding via libopus [no]
204 --enable-libpulse enable Pulseaudio input via libpulse [no]
205 --enable-librtmp enable RTMP[E] support via librtmp [no]
206 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
207 --enable-libsnappy enable Snappy compression [no]
208 --enable-libspeex enable Speex de/encoding via libspeex [no]
209 --enable-libtheora enable Theora encoding via libtheora [no]
210 --enable-libtwolame enable MP2 encoding via libtwolame [no]
211 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
212 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
213 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
214 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
215 --enable-libwavpack enable wavpack encoding via libwavpack [no]
216 --enable-libwebp enable WebP encoding via libwebp [no]
217 --enable-libx264 enable H.264 encoding via x264 [no]
218 --enable-libx265 enable HEVC encoding via x265 [no]
219 --enable-libxavs enable AVS encoding via xavs [no]
220 --enable-libxcb enable X11 grabbing using XCB [no]
221 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
222 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
223 --enable-libxvid enable Xvid encoding via xvidcore,
224 native MPEG-4/Xvid encoder exists [no]
225 --enable-mmal enable decoding via MMAL [no]
226 --enable-nvenc enable encoding via NVENC [no]
227 --enable-openssl enable openssl [no]
228 --enable-x11grab enable X11 grabbing (legacy) [no]
229 --enable-zlib enable zlib [autodetect]
232 --arch=ARCH select architecture [$arch]
233 --cpu=CPU select the minimum required CPU (affects
234 instruction selection, may crash on older CPUs)
235 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
236 --enable-cross-compile assume a cross-compiler is used
237 --sysroot=PATH root of cross-build tree
238 --sysinclude=PATH location of cross-build system headers
239 --target-os=OS compiler targets OS [$target_os]
240 --target-exec=CMD command to run executables on target
241 --target-path=DIR path to view of build directory on target
242 --target-samples=DIR path to samples directory on target
243 --toolchain=NAME set tool defaults according to NAME
245 --ar=AR use archive tool AR [$ar_default]
246 --as=AS use assembler AS [$as_default]
247 --cc=CC use C compiler CC [$cc_default]
248 --objcc=OCC use ObjC compiler OCC [$cc_default]
249 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
250 --ld=LD use linker LD
251 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
252 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
253 --host-cc=HOSTCC use host C compiler HOSTCC
254 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
255 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
256 --host-ld=HOSTLD use host linker HOSTLD
257 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
258 --host-libs=HLIBS use libs HLIBS when linking for host
259 --host-os=OS compiler host OS [$target_os]
260 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
261 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
262 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
263 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
264 --extra-libs=ELIBS add ELIBS [$ELIBS]
265 --extra-version=STRING version string suffix []
266 --optflags=OPTFLAGS override optimization-related compiler flags
267 --build-suffix=SUFFIX library name suffix []
268 --enable-pic build position-independent code
269 --enable-thumb compile for Thumb instruction set
270 --enable-lto use link-time optimization
271 --env="ENV=override" override the environment variables
273 Advanced options (experts only):
274 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
275 --custom-allocator=NAME use a supported custom allocator
276 --disable-symver disable symbol versioning
277 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
278 --disable-safe-bitstream-reader
279 disable buffer boundary checking in bitreaders
280 (faster, but may crash)
281 --enable-memalign-hack emulate memalign, interferes with memory debuggers
282 --enable-sram allow use of on-chip SRAM
284 Optimization options (experts only):
285 --disable-asm disable all assembly optimizations
286 --disable-altivec disable AltiVec optimizations
287 --disable-vsx disable VSX optimizations
288 --disable-power8 disable POWER8 optimizations
289 --disable-amd3dnow disable 3DNow! optimizations
290 --disable-amd3dnowext disable 3DNow! extended optimizations
291 --disable-mmx disable MMX optimizations
292 --disable-mmxext disable MMXEXT optimizations
293 --disable-sse disable SSE optimizations
294 --disable-sse2 disable SSE2 optimizations
295 --disable-sse3 disable SSE3 optimizations
296 --disable-ssse3 disable SSSE3 optimizations
297 --disable-sse4 disable SSE4 optimizations
298 --disable-sse42 disable SSE4.2 optimizations
299 --disable-avx disable AVX optimizations
300 --disable-xop disable XOP optimizations
301 --disable-fma3 disable FMA3 optimizations
302 --disable-fma4 disable FMA4 optimizations
303 --disable-avx2 disable AVX2 optimizations
304 --disable-armv5te disable armv5te optimizations
305 --disable-armv6 disable armv6 optimizations
306 --disable-armv6t2 disable armv6t2 optimizations
307 --disable-vfp disable VFP optimizations
308 --disable-neon disable NEON optimizations
309 --disable-inline-asm disable use of inline assembly
310 --disable-yasm disable use of nasm/yasm assembly
312 Developer options (useful when working on Libav itself):
313 --disable-debug disable debugging symbols
314 --enable-debug=LEVEL set the debug level [$debuglevel]
315 --disable-optimizations disable compiler optimizations
316 --enable-extra-warnings enable more compiler warnings
317 --samples=PATH location of test samples for FATE, if not set use
318 \$LIBAV_SAMPLES at make invocation time.
319 --enable-neon-clobber-test check NEON registers for clobbering (should be
320 used only for debugging purposes)
321 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
322 should be used only for debugging purposes)
323 --enable-random randomly enable/disable components
325 --enable-random=LIST randomly enable/disable specific components or
326 --disable-random=LIST component groups. LIST is a comma-separated list
327 of NAME[:PROB] entries where NAME is a component
328 (group) and PROB the probability associated with
330 --random-seed=VALUE seed value for --enable/disable-random
331 --disable-valgrind-backtrace do not print a backtrace under Valgrind
332 (only applies to --disable-optimizations builds)
334 NOTE: Object files are built at the place where configure is launched.
342 echo "$@" >> $logfile
349 printf '%5s %s\n' "${i}" "${line}"
351 done < $1 >> $logfile
362 WARNINGS="${WARNINGS}WARNING: $*\n"
369 If you think configure made a mistake, make sure you are using the latest
370 version from Git. If the latest version fails, report the problem to the
371 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
373 if disabled logging; then
375 Rerun configure with logging enabled (do not use --disable-logging), and
376 include the log this produces with your report.
380 Include the log file "$logfile" produced by configure as this will help
387 # Avoid locale weirdness, besides we really just want to translate ASCII.
389 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
393 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
397 echo "$*" | sed 's/["\\]/\\\0/g'
401 v=$(echo "$1" | sed "s/'/'\\\\''/g")
402 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
407 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
414 eval "case $v in $pat) echo $v ;; esac"
422 eval "case $v in $pat) ;; *) echo $v ;; esac"
429 for v; do eval $m; done
435 for v; do echo ${v}${suffix}; done
450 eval : \${$var:=$value}
455 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
461 eval $(sanitize_var_name "$var")='$*'
465 eval echo \$$(sanitize_var_name "$1")
470 eval level=\${${pvar}_level:=0}
471 eval ${pvar}_${level}="\$$pvar"
472 eval ${pvar}_level=$(($level+1))
478 eval level=\${${pvar}_level:-0}
479 test $level = 0 && continue
480 eval level=$(($level-1))
481 eval $pvar="\${${pvar}_${level}}"
482 eval ${pvar}_level=$level
483 eval unset ${pvar}_${level}
505 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517 enabled $var && continue
518 eval sel="\$${var}_select"
519 eval sgs="\$${var}_suggest"
523 enable_deep_weak $sgs
535 disabled $var && continue
544 test "${1#!}" = "$1" && op== || op=!=
545 eval test "x\$${1#!}" $op "xyes"
549 test "${1#!}" = "$1" && op== || op=!=
550 eval test "x\$${1#!}" $op "xno"
555 enabled $opt || return 1
561 disabled $opt || return 1
567 enabled $opt && return 0
573 disabled $opt && return 0
580 eval : \${$opt:=\$${opt}_default}
588 [ $var = $value ] && return 0
596 enabled ${cfg}_checking && die "Circular dependency for $cfg."
597 disabled ${cfg}_checking && continue
598 enable ${cfg}_checking
601 eval dep_all="\$${cfg}_deps"
602 eval dep_any="\$${cfg}_deps_any"
603 eval dep_sel="\$${cfg}_select"
604 eval dep_sgs="\$${cfg}_suggest"
605 eval dep_ifa="\$${cfg}_if"
606 eval dep_ifn="\$${cfg}_if_any"
608 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
609 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
610 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
612 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
613 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
614 enabled_all $dep_all || disable $cfg
615 enabled_any $dep_any || disable $cfg
616 disabled_any $dep_sel && disable $cfg
618 if enabled $cfg; then
620 enable_deep_weak $dep_sgs
623 disable ${cfg}_checking
632 for cfg in $allopts; do
633 enabled $cfg || continue
634 eval dep_extralibs="\$${cfg}_extralibs"
635 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
643 map 'eval echo "$v \${$v:-no}"' "$@" |
644 awk "BEGIN { split(\"$files\", files) }
646 c = \"$pfx\" toupper(\$1);
652 if (file ~ /\\.h\$/) {
653 printf(\"#define %s %d\\n\", c, v) >>file;
654 } else if (file ~ /\\.asm\$/) {
655 printf(\"%%define %s %d\\n\", c, v) >>file;
656 } else if (file ~ /\\.mak\$/) {
657 n = -v ? \"\" : \"!\";
658 printf(\"%s%s=yes\\n\", n, c) >>file;
668 enabled $v && printf "%s\n" ${v%$suf};
675 eval "$var=\"\$$var $*\""
681 eval "$var=\"$* \$$var\""
687 for tok in $(eval echo \$$var); do
688 uniq_list="$(filter_out $tok $uniq_list) $tok"
690 eval "$var=\"${uniq_list}\""
698 append CFLAGS $($cflags_filter "$@")
702 append ASFLAGS $($asflags_filter "$@")
706 append OBJCFLAGS $($objcflags_filter "$@")
710 append LDFLAGS $($ldflags_filter "$@")
714 append LDEXEFLAGS $($ldflags_filter "$@")
718 append STRIPFLAGS "$@"
722 prepend extralibs $($ldflags_filter "$@")
726 append host_cppflags "$@"
730 append host_cflags $($host_cflags_filter "$@")
734 append host_ldflags $($host_ldflags_filter "$@")
738 append compat_objs $1
740 map 'add_cppflags -D$v' "$@"
745 "$@" >> $logfile 2>&1
749 eval printf '%s\\n' $CC_O
753 eval printf '%s\\n' $CC_E
760 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
767 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
774 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
778 eval printf '%s\\n' $AS_O
785 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
789 log check_inline_asm "$@"
794 check_cc "$@" <<EOF && enable $name
795 void foo(void){ __asm__ volatile($code); }
801 check_inline_asm ${1}_inline "\"$2\""
802 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
810 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
814 eval printf '%s\\n' $LD_O
819 flags=$(filter_out '-l*' "$@")
820 libs=$(filter '-l*' "$@")
821 check_cc $($cflags_filter $flags) || return
822 flags=$($ldflags_filter $flags)
823 libs=$($ldflags_filter $libs)
824 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
829 test "${hdr%.h}" = "${hdr}" &&
830 echo "#include $hdr" ||
831 echo "#include <$hdr>"
841 for hdr in $headers; do
844 echo "int main(void) { $code; return 0; }"
845 } | check_$check "$@"
849 log check_cppflags "$@"
850 check_cc "$@" <<EOF && append CPPFLAGS "$@"
857 set -- $($cflags_filter "$@")
864 log check_cflags "$@"
865 test_cflags "$@" && add_cflags "$@"
870 set -- $($cflags_filter "$@")
871 check_objcc "$@" <<EOF
877 log check_cflags "$@"
878 test_objcflags "$@" && add_objcflags "$@"
882 log test_ldflags "$@"
884 int main(void){ return 0; }
889 log check_ldflags "$@"
890 test_ldflags "$@" && add_ldflags "$@"
894 log test_stripflags "$@"
895 # call check_cc to get a fresh TMPO
897 int main(void) { return 0; }
899 check_cmd $strip $STRIPFLAGS "$@" $TMPO
903 log check_stripflags "$@"
904 test_stripflags "$@" && add_stripflags "$@"
908 log check_header "$@"
912 check_cpp "$@" <<EOF && enable_safe $header
923 check_ld "$@" <<EOF && enable $func
925 int main(void){ $func(); }
930 log check_mathfunc "$@"
934 test $narg = 2 && args="f, g" || args="f"
936 check_ld "$@" <<EOF && enable $func
938 float foo(float f, float g) { return $func($args); }
939 int main(void){ return 0; }
943 check_func_headers(){
944 log check_func_headers "$@"
949 for hdr in $headers; do
952 for func in $funcs; do
953 echo "long check_$func(void) { return (long) $func; }"
955 echo "int main(void) { return 0; }"
956 } | check_ld "$@" && enable $funcs && enable_safe $headers
959 check_cpp_condition(){
960 log check_cpp_condition "$@"
967 #error "unsatisfied condition: $condition"
977 check_header $header && check_func $func "$@" && add_extralibs "$@"
985 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
989 log check_pkg_config "$@"
994 check_cmd $pkg_config --exists --print-errors $pkg || return
995 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
996 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
997 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
998 set_safe "${pkg}_cflags" $pkg_cflags &&
999 set_safe "${pkg}_libs" $pkg_libs
1003 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1009 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1010 # are safe but may not be available everywhere. Thus we use
1011 # raise(SIGTERM) instead. The check is run in a subshell so we
1012 # can redirect the "Terminated" message from the shell. SIGBUS
1013 # is not defined by standard C so it is used conditionally.
1015 (check_exec "$@") >> $logfile 2>&1 <<EOF
1017 static void sighandler(int sig){
1023 int (*func_ptr)(void) = foo;
1025 signal(SIGILL, sighandler);
1026 signal(SIGFPE, sighandler);
1027 signal(SIGSEGV, sighandler);
1029 signal(SIGBUS, sighandler);
1041 disable_safe "$type"
1042 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1046 log check_struct "$@"
1051 disable_safe "${struct}_${member}"
1052 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1053 enable_safe "${struct}_${member}"
1057 log check_builtin "$@"
1063 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1066 check_compile_assert(){
1067 log check_compile_assert "$@"
1073 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1081 check_lib $header $func "$@" || die "ERROR: $name not found"
1089 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1092 require_pkg_config(){
1094 check_pkg_config "$@" || die "ERROR: $pkg not found"
1095 add_cflags $(get_safe "${pkg}_cflags")
1096 add_extralibs $(get_safe "${pkg}_libs")
1100 eval printf '%s\\n' $HOSTCC_E
1104 eval printf '%s\\n' $HOSTCC_O
1108 log check_host_cc "$@"
1111 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1115 log check_host_cpp "$@"
1118 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1121 check_host_cppflags(){
1122 log check_host_cppflags "$@"
1123 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1128 check_host_cflags(){
1129 log check_host_cflags "$@"
1130 set -- $($host_cflags_filter "$@")
1131 check_host_cc "$@" <<EOF && append host_cflags "$@"
1136 check_host_cpp_condition(){
1137 log check_host_cpp_condition "$@"
1141 check_host_cpp "$@" <<EOF
1144 #error "unsatisfied condition: $condition"
1152 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1156 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1157 mkdir -p "$(dirname $2)"
1161 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1162 # system-dependent things.
1164 AVCODEC_COMPONENTS="
1172 AVDEVICE_COMPONENTS="
1176 AVFILTER_COMPONENTS="
1179 AVFORMAT_COMPONENTS="
1185 AVRESAMPLE_COMPONENTS=""
1186 AVUTIL_COMPONENTS=""
1190 $AVDEVICE_COMPONENTS
1191 $AVFILTER_COMPONENTS
1192 $AVFORMAT_COMPONENTS
1193 $AVRESAMPLE_COMPONENTS
1199 filter_audio_example
1203 transcode_aac_example
1206 EXTERNAL_LIBRARY_LIST="
1262 safe_bitstream_reader
1316 $EXTERNAL_LIBRARY_LIST
1381 ARCH_EXT_LIST_X86_SIMD="
1409 $ARCH_EXT_LIST_X86_SIMD
1414 ARCH_EXT_LIST_MIPS="
1448 sync_val_compare_and_swap
1462 AVFoundation_AVFoundation_h
1467 cdio_paranoia_paranoia_h
1468 dev_bktr_ioctl_bt848_h
1469 dev_bktr_ioctl_meteor_h
1471 dev_video_bktr_ioctl_bt848_h
1472 dev_video_meteor_ioctl_meteor_h
1480 machine_ioctl_bt848_h
1481 machine_ioctl_meteor_h
1545 GetProcessAffinityMask
1546 GetProcessMemoryInfo
1549 GetSystemTimeAsFileTime
1554 jack_port_get_latency_range
1566 SetConsoleTextAttribute
1577 TOOLCHAIN_FEATURES="
1598 CONDITION_VARIABLE_Ptr
1601 struct_group_source_req
1602 struct_ip_mreq_source
1605 struct_rusage_ru_maxrss
1607 struct_sockaddr_sa_len
1608 struct_sockaddr_storage
1609 struct_v4l2_frmivalenum_discrete
1614 $(add_suffix _external $ARCH_EXT_LIST)
1615 $(add_suffix _inline $ARCH_EXT_LIST)
1642 # options emitted with CONFIG_ prefix but not available on the command line
1786 # code dependency declarations
1788 # architecture extensions
1793 armv8_deps="aarch64"
1794 neon_deps_any="aarch64 arm"
1795 intrinsics_neon_deps="neon"
1796 vfp_deps_any="aarch64 arm"
1799 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1807 x86_64_select="i686"
1808 x86_64_suggest="fast_cmov"
1811 amd3dnowext_deps="amd3dnow"
1827 mmx_external_deps="yasm"
1828 mmx_inline_deps="inline_asm"
1829 mmx_suggest="mmx_external mmx_inline"
1831 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1832 eval dep=\$${ext}_deps
1833 eval ${ext}_external_deps='"${dep}_external"'
1834 eval ${ext}_inline_deps='"${dep}_inline"'
1835 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1838 aligned_stack_if_any="aarch64 ppc x86"
1839 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1840 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1841 fast_unaligned_if_any="aarch64 ppc x86"
1842 simd_align_16_if_any="altivec neon sse"
1844 # system capabilities
1845 symver_if_any="symver_asm_label symver_gnu_asm"
1846 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1849 atomics_gcc_if="sync_val_compare_and_swap"
1850 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1851 atomics_win32_if="MemoryBarrier"
1852 atomics_native_if_any="$ATOMICS_LIST"
1853 w32threads_deps="atomics_native"
1854 threads_if_any="$THREADS_LIST"
1858 dirac_parse_select="golomb"
1859 error_resilience_select="me_cmp"
1860 faandct_deps="faan fdctdsp"
1861 faanidct_deps="faan idctdsp"
1862 h264dsp_select="startcode"
1863 intrax8_select="error_resilience"
1866 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1867 mpeg_er_select="error_resilience"
1868 mpegaudio_select="mpegaudiodsp"
1869 mpegaudiodsp_select="dct"
1870 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1871 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1872 nvenc_deps_any="dlopen LoadLibrary"
1873 nvenc_extralibs='$ldl'
1876 vc1dsp_select="h264chroma qpeldsp startcode"
1878 # decoders / encoders
1879 aac_decoder_select="imdct15 mdct sinewin"
1880 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1881 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1882 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1883 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1884 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1885 adpcm_g722_decoder_select="g722dsp"
1886 adpcm_g722_encoder_select="g722dsp"
1887 aic_decoder_select="golomb idctdsp"
1888 alac_encoder_select="lpc"
1889 als_decoder_select="bswapdsp"
1890 amrnb_decoder_select="lsp"
1891 amrwb_decoder_select="lsp"
1892 amv_decoder_select="sp5x_decoder"
1893 ape_decoder_select="bswapdsp"
1894 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1895 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1896 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1897 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1898 atrac1_decoder_select="mdct sinewin"
1899 atrac3_decoder_select="mdct"
1900 atrac3p_decoder_select="mdct sinewin"
1901 bink_decoder_select="blockdsp hpeldsp"
1902 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1903 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1904 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1905 cllc_decoder_select="bswapdsp"
1906 comfortnoise_encoder_select="lpc"
1907 cook_decoder_select="audiodsp mdct sinewin"
1908 cscd_decoder_select="lzo"
1909 cscd_decoder_suggest="zlib"
1910 dca_decoder_select="fmtconvert mdct"
1911 dds_decoder_select="texturedsp"
1912 dnxhd_decoder_select="blockdsp idctdsp"
1913 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1914 dvvideo_decoder_select="dvprofile idctdsp"
1915 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1916 dxa_decoder_deps="zlib"
1917 dxv_decoder_select="lzf texturedsp"
1918 eac3_decoder_select="ac3_decoder"
1919 eac3_encoder_select="ac3_encoder"
1920 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1921 eatgq_decoder_select="aandcttables idctdsp"
1922 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1923 exr_decoder_deps="zlib"
1924 ffv1_decoder_select="golomb rangecoder"
1925 ffv1_encoder_select="rangecoder"
1926 ffvhuff_decoder_select="huffyuv_decoder"
1927 ffvhuff_encoder_select="huffyuv_encoder"
1928 fic_decoder_select="golomb"
1929 flac_decoder_select="flacdsp golomb"
1930 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1931 flashsv_decoder_deps="zlib"
1932 flashsv_encoder_deps="zlib"
1933 flashsv2_decoder_deps="zlib"
1934 flv_decoder_select="h263_decoder"
1935 flv_encoder_select="h263_encoder"
1936 fourxm_decoder_select="blockdsp bswapdsp"
1937 fraps_decoder_select="bswapdsp huffman"
1938 g2m_decoder_deps="zlib"
1939 g2m_decoder_select="blockdsp idctdsp jpegtables"
1940 h261_decoder_select="mpeg_er mpegvideo"
1941 h261_encoder_select="aandcttables mpegvideoenc"
1942 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1943 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1944 h263i_decoder_select="h263_decoder"
1945 h263p_encoder_select="h263_encoder"
1946 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1947 h264_decoder_suggest="error_resilience"
1948 h264_nvenc_encoder_deps="nvenc"
1949 h264_qsv_decoder_deps="libmfx"
1950 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1951 h264_qsv_encoder_deps="libmfx"
1952 h264_qsv_encoder_select="qsvenc"
1953 hap_decoder_select="snappy texturedsp"
1954 hap_encoder_deps="libsnappy"
1955 hap_encoder_select="texturedspenc"
1956 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1957 hevc_nvenc_encoder_deps="nvenc"
1958 hevc_qsv_encoder_deps="libmfx"
1959 hevc_qsv_decoder_deps="libmfx"
1960 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1961 hevc_qsv_encoder_select="qsvenc"
1962 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1963 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1964 iac_decoder_select="imc_decoder"
1965 imc_decoder_select="bswapdsp fft mdct sinewin"
1966 indeo3_decoder_select="hpeldsp"
1967 indeo4_decoder_select="ividsp"
1968 indeo5_decoder_select="ividsp"
1969 interplay_video_decoder_select="hpeldsp"
1970 jpegls_decoder_select="golomb mjpeg_decoder"
1971 jpegls_encoder_select="golomb"
1972 jv_decoder_select="blockdsp"
1973 lagarith_decoder_select="huffyuvdsp"
1974 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1975 loco_decoder_select="golomb"
1976 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1977 metasound_decoder_select="lsp mdct sinewin"
1978 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1979 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1980 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1981 mjpegb_decoder_select="mjpeg_decoder"
1982 mlp_decoder_select="mlp_parser"
1983 motionpixels_decoder_select="bswapdsp"
1984 mp1_decoder_select="mpegaudio"
1985 mp1float_decoder_select="mpegaudio"
1986 mp2_decoder_select="mpegaudio"
1987 mp2float_decoder_select="mpegaudio"
1988 mp3_decoder_select="mpegaudio"
1989 mp3adu_decoder_select="mpegaudio"
1990 mp3adufloat_decoder_select="mpegaudio"
1991 mp3float_decoder_select="mpegaudio"
1992 mp3on4_decoder_select="mpegaudio"
1993 mp3on4float_decoder_select="mpegaudio"
1994 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1995 mpc8_decoder_select="mpegaudiodsp"
1996 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1997 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1998 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1999 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2000 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2001 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2002 mpeg2_qsv_decoder_deps="libmfx"
2003 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2004 mpeg2_qsv_encoder_deps="libmfx"
2005 mpeg2_qsv_encoder_select="qsvenc"
2006 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2007 mpeg4_encoder_select="h263_encoder"
2008 msa1_decoder_select="mss34dsp"
2009 msmpeg4v1_decoder_select="h263_decoder"
2010 msmpeg4v2_decoder_select="h263_decoder"
2011 msmpeg4v2_encoder_select="h263_encoder"
2012 msmpeg4v3_decoder_select="h263_decoder"
2013 msmpeg4v3_encoder_select="h263_encoder"
2014 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2015 mts2_decoder_select="mss34dsp"
2016 mxpeg_decoder_select="mjpeg_decoder"
2017 nellymoser_decoder_select="mdct sinewin"
2018 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2019 nuv_decoder_select="idctdsp lzo"
2020 nvenc_h264_encoder_deps="nvenc"
2021 nvenc_hevc_encoder_deps="nvenc"
2022 on2avc_decoder_select="mdct"
2023 opus_decoder_deps="avresample"
2024 opus_decoder_select="imdct15"
2025 png_decoder_deps="zlib"
2026 png_encoder_deps="zlib"
2027 png_encoder_select="huffyuvencdsp"
2028 prores_decoder_select="idctdsp"
2029 prores_encoder_select="fdctdsp"
2030 qcelp_decoder_select="lsp"
2031 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2032 ra_144_encoder_select="audio_frame_queue lpc"
2033 ralf_decoder_select="golomb"
2034 rscc_decoder_deps="zlib"
2035 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2036 rv10_encoder_select="h263_encoder"
2037 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2038 rv20_encoder_select="h263_encoder"
2039 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2040 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2041 screenpresso_decoder_deps="zlib"
2042 shorten_decoder_select="golomb"
2043 sipr_decoder_select="lsp"
2044 sp5x_decoder_select="mjpeg_decoder"
2045 svq1_decoder_select="hpeldsp"
2046 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2047 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2048 svq3_decoder_suggest="zlib"
2049 tak_decoder_select="audiodsp"
2050 tdsc_decoder_deps="zlib"
2051 tdsc_decoder_select="mjpeg_decoder"
2052 theora_decoder_select="vp3_decoder"
2053 thp_decoder_select="mjpeg_decoder"
2054 tiff_decoder_suggest="zlib"
2055 tiff_encoder_suggest="zlib"
2056 truehd_decoder_select="mlp_decoder"
2057 truemotion2_decoder_select="bswapdsp"
2058 truespeech_decoder_select="bswapdsp"
2059 tscc_decoder_deps="zlib"
2060 txd_decoder_select="texturedsp"
2061 twinvq_decoder_select="mdct lsp sinewin"
2062 utvideo_decoder_select="bswapdsp"
2063 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2064 vble_decoder_select="huffyuvdsp"
2065 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2066 vc1image_decoder_select="vc1_decoder"
2067 vorbis_decoder_select="mdct"
2068 vorbis_encoder_select="mdct"
2069 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2070 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2071 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2072 vp6a_decoder_select="vp6_decoder"
2073 vp6f_decoder_select="vp6_decoder"
2074 vp7_decoder_select="h264pred videodsp vp8dsp"
2075 vp8_decoder_select="h264pred videodsp vp8dsp"
2076 vp9_decoder_select="videodsp"
2077 webp_decoder_select="vp8_decoder"
2078 wmapro_decoder_select="mdct sinewin wma_freqs"
2079 wmav1_decoder_select="mdct sinewin wma_freqs"
2080 wmav1_encoder_select="mdct sinewin wma_freqs"
2081 wmav2_decoder_select="mdct sinewin wma_freqs"
2082 wmav2_encoder_select="mdct sinewin wma_freqs"
2083 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2084 wmv1_decoder_select="h263_decoder"
2085 wmv1_encoder_select="h263_encoder"
2086 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2087 wmv2_encoder_select="h263_encoder wmv2dsp"
2088 wmv3_decoder_select="vc1_decoder"
2089 wmv3image_decoder_select="wmv3_decoder"
2090 zerocodec_decoder_deps="zlib"
2091 zlib_decoder_deps="zlib"
2092 zlib_encoder_deps="zlib"
2093 zmbv_decoder_deps="zlib"
2094 zmbv_encoder_deps="zlib"
2096 # hardware accelerators
2097 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2098 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2099 vaapi_deps="va_va_h"
2100 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2101 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2102 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2104 h263_vaapi_hwaccel_deps="vaapi"
2105 h263_vaapi_hwaccel_select="h263_decoder"
2106 h264_d3d11va_hwaccel_deps="d3d11va"
2107 h264_d3d11va_hwaccel_select="h264_decoder"
2108 h264_dxva2_hwaccel_deps="dxva2"
2109 h264_dxva2_hwaccel_select="h264_decoder"
2110 h264_mmal_decoder_deps="mmal"
2111 h264_mmal_hwaccel_deps="mmal"
2112 h264_mmal_decoder_select="h264_decoder"
2113 h264_mmal_encoder_deps="mmal"
2114 h264_qsv_hwaccel_deps="libmfx"
2115 h264_vaapi_hwaccel_deps="vaapi"
2116 h264_vaapi_hwaccel_select="h264_decoder"
2117 h264_vda_hwaccel_deps="vda"
2118 h264_vda_hwaccel_select="h264_decoder"
2119 h264_vda_old_hwaccel_deps="vda"
2120 h264_vda_old_hwaccel_select="h264_decoder"
2121 h264_vdpau_hwaccel_deps="vdpau"
2122 h264_vdpau_hwaccel_select="h264_decoder"
2123 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2124 hevc_d3d11va_hwaccel_select="hevc_decoder"
2125 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2126 hevc_dxva2_hwaccel_select="hevc_decoder"
2127 hevc_qsv_hwaccel_deps="libmfx"
2128 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2129 hevc_vdpau_hwaccel_select="hevc_decoder"
2130 mpeg1_vdpau_hwaccel_deps="vdpau"
2131 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2132 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2133 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2134 mpeg2_dxva2_hwaccel_deps="dxva2"
2135 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2136 mpeg2_qsv_hwaccel_deps="libmfx"
2137 mpeg2_vaapi_hwaccel_deps="vaapi"
2138 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2139 mpeg2_vdpau_hwaccel_deps="vdpau"
2140 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2141 mpeg4_vaapi_hwaccel_deps="vaapi"
2142 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2143 mpeg4_vdpau_hwaccel_deps="vdpau"
2144 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2145 vc1_d3d11va_hwaccel_deps="d3d11va"
2146 vc1_d3d11va_hwaccel_select="vc1_decoder"
2147 vc1_dxva2_hwaccel_deps="dxva2"
2148 vc1_dxva2_hwaccel_select="vc1_decoder"
2149 vc1_vaapi_hwaccel_deps="vaapi"
2150 vc1_vaapi_hwaccel_select="vc1_decoder"
2151 vc1_vdpau_hwaccel_deps="vdpau"
2152 vc1_vdpau_hwaccel_select="vc1_decoder"
2153 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2154 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2155 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2156 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2159 h264_parser_select="h264_decoder"
2160 hevc_parser_select="golomb"
2161 mpegvideo_parser_select="mpegvideo"
2162 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2163 vc1_parser_select="vc1dsp"
2166 mjpeg2jpeg_bsf_select="jpegtables"
2168 # external libraries
2169 libdcadec_decoder_deps="libdcadec"
2170 libfaac_encoder_deps="libfaac"
2171 libfaac_encoder_select="audio_frame_queue"
2172 libfdk_aac_decoder_deps="libfdk_aac"
2173 libfdk_aac_encoder_deps="libfdk_aac"
2174 libfdk_aac_encoder_select="audio_frame_queue"
2175 libgsm_decoder_deps="libgsm"
2176 libgsm_encoder_deps="libgsm"
2177 libgsm_ms_decoder_deps="libgsm"
2178 libgsm_ms_encoder_deps="libgsm"
2179 libilbc_decoder_deps="libilbc"
2180 libilbc_encoder_deps="libilbc"
2181 libkvazaar_encoder_deps="libkvazaar"
2182 libmp3lame_encoder_deps="libmp3lame"
2183 libmp3lame_encoder_select="audio_frame_queue"
2184 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2185 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2186 libopencore_amrnb_encoder_select="audio_frame_queue"
2187 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2188 libopenh264_encoder_deps="libopenh264"
2189 libopenjpeg_decoder_deps="libopenjpeg"
2190 libopenjpeg_encoder_deps="libopenjpeg"
2191 libopus_decoder_deps="libopus"
2192 libopus_encoder_deps="libopus"
2193 libopus_encoder_select="audio_frame_queue"
2194 libschroedinger_decoder_deps="libschroedinger"
2195 libschroedinger_encoder_deps="libschroedinger"
2196 libspeex_decoder_deps="libspeex"
2197 libspeex_encoder_deps="libspeex"
2198 libspeex_encoder_select="audio_frame_queue"
2199 libtheora_encoder_deps="libtheora"
2200 libtwolame_encoder_deps="libtwolame"
2201 libvo_aacenc_encoder_deps="libvo_aacenc"
2202 libvo_aacenc_encoder_select="audio_frame_queue"
2203 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2204 libvorbis_encoder_deps="libvorbis"
2205 libvorbis_encoder_select="audio_frame_queue"
2206 libvpx_vp8_decoder_deps="libvpx"
2207 libvpx_vp8_encoder_deps="libvpx"
2208 libvpx_vp9_decoder_deps="libvpx"
2209 libvpx_vp9_encoder_deps="libvpx"
2210 libwavpack_encoder_deps="libwavpack"
2211 libwebp_encoder_deps="libwebp"
2212 libx262_encoder_deps="libx262"
2213 libx264_encoder_deps="libx264"
2214 libx265_encoder_deps="libx265"
2215 libxavs_encoder_deps="libxavs"
2216 libxvid_encoder_deps="libxvid"
2219 ac3_demuxer_select="ac3_parser"
2220 asf_demuxer_select="riffdec"
2221 asf_muxer_select="riffenc"
2222 asf_stream_muxer_select="asf_muxer"
2223 avi_demuxer_select="iso_media riffdec"
2224 avi_muxer_select="riffenc"
2225 avisynth_demuxer_deps="avisynth"
2226 avisynth_demuxer_select="riffdec"
2227 caf_demuxer_select="iso_media riffdec"
2228 dash_muxer_select="mp4_muxer"
2229 dirac_demuxer_select="dirac_parser"
2230 dv_demuxer_select="dvprofile"
2231 dv_muxer_select="dvprofile"
2232 dxa_demuxer_select="riffdec"
2233 eac3_demuxer_select="ac3_parser"
2234 f4v_muxer_select="mov_muxer"
2235 flac_demuxer_select="flac_parser"
2236 hds_muxer_select="flv_muxer"
2237 hls_muxer_select="mpegts_muxer"
2238 ipod_muxer_select="mov_muxer"
2239 ismv_muxer_select="mov_muxer"
2240 matroska_audio_muxer_select="matroska_muxer"
2241 matroska_demuxer_select="iso_media riffdec"
2242 matroska_demuxer_suggest="bzlib lzo zlib"
2243 matroska_muxer_select="iso_media riffenc"
2244 mmf_muxer_select="riffenc"
2245 mov_demuxer_select="iso_media riffdec"
2246 mov_demuxer_suggest="zlib"
2247 mov_muxer_select="iso_media riffenc rtpenc_chain"
2248 mp3_demuxer_select="mpegaudio_parser"
2249 mp4_muxer_select="mov_muxer"
2250 mpegts_demuxer_select="iso_media"
2251 mpegts_muxer_select="adts_muxer latm_muxer"
2252 mpegtsraw_demuxer_select="mpegts_demuxer"
2253 mxf_d10_muxer_select="mxf_muxer"
2254 nut_muxer_select="riffenc"
2255 nuv_demuxer_select="riffdec"
2256 oga_muxer_select="ogg_muxer"
2257 ogg_demuxer_select="dirac_parse"
2258 opus_muxer_select="ogg_muxer"
2259 psp_muxer_select="mov_muxer"
2260 rtp_demuxer_select="sdp_demuxer"
2261 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2262 rtsp_demuxer_select="http_protocol rtpdec"
2263 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2264 sap_demuxer_select="sdp_demuxer"
2265 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2266 sdp_demuxer_select="rtpdec"
2267 smoothstreaming_muxer_select="ismv_muxer"
2268 spdif_muxer_select="aac_parser"
2269 spx_muxer_select="ogg_muxer"
2270 swf_demuxer_suggest="zlib"
2271 tak_demuxer_select="tak_parser"
2272 tg2_muxer_select="mov_muxer"
2273 tgp_muxer_select="mov_muxer"
2274 w64_demuxer_select="wav_demuxer"
2275 wav_demuxer_select="riffdec"
2276 wav_muxer_select="riffenc"
2277 webm_muxer_select="iso_media riffenc"
2278 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2279 wtv_demuxer_select="mpegts_demuxer riffdec"
2280 xmv_demuxer_select="riffdec"
2281 xwma_demuxer_select="riffdec"
2284 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2285 alsa_outdev_deps="alsa_asoundlib_h"
2286 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2287 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2288 dv1394_indev_deps="dv1394"
2289 dv1394_indev_select="dv_demuxer"
2290 fbdev_indev_deps="linux_fb_h"
2291 jack_indev_deps="jack_jack_h pthreads"
2292 libcdio_indev_deps="libcdio"
2293 libdc1394_indev_deps="libdc1394"
2294 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2295 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2296 pulse_indev_deps="libpulse"
2297 sndio_indev_deps="sndio_h"
2298 sndio_outdev_deps="sndio_h"
2299 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2300 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2301 vfwcap_indev_extralibs="-lavicap32"
2302 x11grab_indev_deps="x11grab"
2303 x11grab_xcb_indev_deps="libxcb"
2306 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2307 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2308 ffrtmpcrypt_protocol_select="tcp_protocol"
2309 ffrtmphttp_protocol_deps="!librtmp_protocol"
2310 ffrtmphttp_protocol_select="http_protocol"
2311 gopher_protocol_select="network"
2312 http_protocol_select="tcp_protocol"
2313 httpproxy_protocol_select="tcp_protocol"
2314 https_protocol_select="tls_protocol"
2315 icecast_protocol_select="http_protocol"
2316 librtmp_protocol_deps="librtmp"
2317 librtmpe_protocol_deps="librtmp"
2318 librtmps_protocol_deps="librtmp"
2319 librtmpt_protocol_deps="librtmp"
2320 librtmpte_protocol_deps="librtmp"
2321 mmsh_protocol_select="http_protocol"
2322 mmst_protocol_select="network"
2323 rtmp_protocol_deps="!librtmp_protocol"
2324 rtmp_protocol_select="tcp_protocol"
2325 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2326 rtmps_protocol_deps="!librtmp_protocol"
2327 rtmps_protocol_select="tls_protocol"
2328 rtmpt_protocol_select="ffrtmphttp_protocol"
2329 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2330 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2331 rtp_protocol_select="udp_protocol"
2332 sctp_protocol_deps="struct_sctp_event_subscribe"
2333 sctp_protocol_select="network"
2334 srtp_protocol_select="rtp_protocol"
2335 tcp_protocol_select="network"
2336 tls_gnutls_protocol_deps="gnutls"
2337 tls_gnutls_protocol_select="tcp_protocol"
2338 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2339 tls_openssl_protocol_select="tcp_protocol"
2340 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2341 udp_protocol_select="network"
2342 unix_protocol_deps="sys_un_h"
2343 unix_protocol_select="network"
2346 blackframe_filter_deps="gpl"
2347 boxblur_filter_deps="gpl"
2348 bs2b_filter_deps="libbs2b"
2349 cropdetect_filter_deps="gpl"
2350 delogo_filter_deps="gpl"
2351 drawtext_filter_deps="libfreetype"
2352 frei0r_filter_deps="frei0r dlopen"
2353 frei0r_filter_extralibs='$ldl'
2354 frei0r_src_filter_deps="frei0r dlopen"
2355 frei0r_src_filter_extralibs='$ldl'
2356 hqdn3d_filter_deps="gpl"
2357 hwupload_cuda_filter_deps="cuda"
2358 interlace_filter_deps="gpl"
2359 ocv_filter_deps="libopencv"
2360 resample_filter_deps="avresample"
2361 scale_filter_deps="swscale"
2364 avcodec_example_deps="avcodec avutil"
2365 filter_audio_example_deps="avfilter avutil"
2366 metadata_example_deps="avformat avutil"
2367 output_example_deps="avcodec avformat avutil swscale"
2368 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2369 transcode_aac_example_deps="avcodec avformat avresample"
2371 # libraries, in linking order
2372 avcodec_deps="avutil"
2373 avdevice_deps="avformat avcodec avutil"
2374 avfilter_deps="avutil"
2375 avformat_deps="avcodec avutil"
2376 avresample_deps="avutil"
2377 swscale_deps="avutil"
2380 avconv_deps="avcodec avfilter avformat avresample swscale"
2381 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2382 fps_filter null_filter resample_filter scale_filter
2383 setpts_filter trim_filter"
2384 avplay_deps="avcodec avfilter avformat avresample sdl"
2385 avplay_libs='$sdl_libs'
2386 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2387 avprobe_deps="avcodec avformat"
2391 texi2html_deps="doc"
2393 # default parameters
2395 logfile="config.log"
2397 # installation paths
2398 prefix_default="/usr/local"
2399 bindir_default='${prefix}/bin'
2400 datadir_default='${prefix}/share/avconv'
2401 docdir_default='${prefix}/share/doc/libav'
2402 incdir_default='${prefix}/include'
2403 libdir_default='${prefix}/lib'
2404 mandir_default='${prefix}/share/man'
2405 shlibdir_default="$libdir_default"
2410 host_cc_default="gcc"
2415 pkg_config_default=pkg-config
2421 arch_default=$(uname -m)
2426 target_os_default=$(tolower $(uname -s))
2427 host_os=$target_os_default
2429 # configurable options
2430 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2435 enable faan faandct faanidct
2436 enable optimizations
2437 enable safe_bitstream_reader
2439 enable swscale_alpha
2440 enable valgrind_backtrace
2442 # By default, enable only those hwaccels that have no external dependencies.
2443 enable d3d11va dxva2 vda vdpau
2446 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2449 FULLNAME='$(NAME)$(BUILDSUF)'
2450 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2453 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2454 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2455 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2456 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2457 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2458 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2481 host_cflags_filter=echo
2482 host_ldflags_filter=echo
2484 target_path='$(CURDIR)'
2486 # since the object filename is not given with the -MM flag, the compiler
2487 # is only able to print the basename, and we must add the path ourselves
2488 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2492 if test -f configure; then
2495 source_path=$(cd $(dirname "$0"); pwd)
2496 echo "$source_path" | grep -q '[[:blank:]]' &&
2497 die "Out of tree builds are impossible with whitespace in source path."
2498 test -e "$source_path/config.h" &&
2499 die "Out of tree builds are impossible with config.h in source dir."
2506 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2512 file=$source_path/$3
2513 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2516 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2517 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2518 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2519 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2520 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2521 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2522 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2523 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2524 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2526 find_things_extern(){
2529 file=$source_path/$3
2530 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2533 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2534 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2550 for n in $COMPONENT_LIST; do
2551 v=$(toupper ${n%s})_LIST
2553 eval ${n}_if_any="\$$v"
2556 enable $ARCH_EXT_LIST
2559 echo "Unknown option \"$1\"."
2560 echo "See $0 --help for available options."
2565 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2571 echo $* | sed s/$suffix//g | print_3_columns
2583 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2584 echo "prob ${prob:-0.5}"
2592 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2593 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2602 --extra-ldexeflags=*)
2603 add_ldexeflags $optval
2606 add_extralibs $optval
2609 disable $INDEV_LIST $OUTDEV_LIST
2612 debuglevel="$optval"
2615 disable $PROGRAM_LIST
2617 --disable-everything)
2618 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2621 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2622 disable $LIBRARY_LIST $PROGRAM_LIST doc
2624 --enable-random|--disable-random)
2625 action=${opt%%-random}
2626 do_random ${action#--} $COMPONENT_LIST
2628 --enable-random=*|--disable-random=*)
2629 action=${opt%%-random=*}
2630 do_random ${action#--} $optval
2632 --enable-*=*|--disable-*=*)
2633 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2634 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2635 eval list=\$$(toupper $thing)_LIST
2636 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2637 $action $(filter "$name" $list)
2639 --enable-avserver|--disable-avserver*)
2640 warn "avserver has been removed, the ${opt} option is only"\
2641 "provided for compatibility and will be removed in the future"
2643 --enable-?*|--disable-?*)
2644 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2645 if is_in $option $COMPONENT_LIST; then
2646 test $action = disable && action=unset
2647 eval $action \$$(toupper ${option%s})_LIST
2648 elif is_in $option $CMDLINE_SELECT; then
2655 NAME="${opt#--list-}"
2656 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2658 eval show_list $NAME \$$(toupper $NAME)_LIST
2660 --help|-h) show_help
2663 optname="${opt%%=*}"
2664 optname="${optname#--}"
2665 optname=$(echo "$optname" | sed 's/-/_/g')
2666 if is_in $optname $CMDLINE_SET; then
2667 eval $optname='$optval'
2668 elif is_in $optname $CMDLINE_APPEND; then
2669 append $optname "$optval"
2681 disabled logging && logfile=/dev/null
2683 # Disable all the library-specific components if the library itself
2684 # is disabled, see AVCODEC_LIST and following _LIST variables.
2686 disable_components(){
2687 disabled ${1} && disable $(
2688 eval components="\$$(toupper ${1})_COMPONENTS"
2689 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2693 map 'disable_components $v' $LIBRARY_LIST
2695 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2698 case "$toolchain" in
2700 cc_default="${toolchain%-asan}"
2701 add_cflags -fsanitize=address
2702 add_ldflags -fsanitize=address
2705 cc_default="${toolchain%-msan}"
2706 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2707 add_ldflags -fsanitize=memory
2710 cc_default="${toolchain%-tsan}"
2711 add_cflags -fsanitize=thread -pie
2712 add_ldflags -fsanitize=thread -pie
2713 case "$toolchain" in
2721 cc_default="${toolchain%-usan}"
2722 add_cflags -fsanitize=undefined
2723 add_ldflags -fsanitize=undefined
2724 case "$toolchain" in
2731 target_exec_default="valgrind"
2732 case "$toolchain" in
2734 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2737 target_exec_args="--track-origins=yes --leak-check=full"
2742 # Check whether the current MSVC version needs the C99 converter.
2743 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2744 # support enough of C99 to build libav. Default to the new
2745 # behaviour if the regexp was unable to match anything, since this
2746 # successfully parses the version number of existing supported
2747 # versions that require the converter (MSVC 2010 and 2012).
2748 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2749 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2752 cc_default="c99wrap cl"
2754 ld_default="$source_path/compat/windows/mslink"
2755 nm_default="dumpbin -symbols"
2762 target_os_default="win32"
2763 # Use a relative path for TMPDIR. This makes sure all the
2764 # ffconf temp files are written with a relative path, avoiding
2765 # issues with msys/win32 path conversion for MSVC parameters
2766 # such as -Fo<file> or -out:<file>.
2772 nm_default="dumpbin -symbols"
2774 target_os_default="win32"
2778 add_cflags -fprofile-arcs -ftest-coverage
2779 add_ldflags -fprofile-arcs -ftest-coverage
2782 add_cflags -fprofile-arcs -ftest-coverage
2783 add_ldflags --coverage
2786 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2787 add_cflags -fno-strict-overflow -fstack-protector-all
2788 add_ldflags -Wl,-z,relro -Wl,-z,now
2791 die "Unknown toolchain $toolchain"
2795 test -n "$cross_prefix" && enable cross_compile
2797 if enabled cross_compile; then
2798 test -n "$arch" && test -n "$target_os" ||
2799 die "Must specify target arch and OS when cross-compiling"
2802 ar_default="${cross_prefix}${ar_default}"
2803 cc_default="${cross_prefix}${cc_default}"
2804 occ_default="${cross_prefix}${occ_default}"
2805 nm_default="${cross_prefix}${nm_default}"
2806 pkg_config_default="${cross_prefix}${pkg_config_default}"
2807 ranlib="${cross_prefix}${ranlib}"
2808 strip="${cross_prefix}${strip}"
2810 sysinclude_default="${sysroot}/usr/include"
2812 set_default arch cc pkg_config sysinclude target_exec target_os
2813 enabled cross_compile || host_cc_default=$cc
2816 if ! $pkg_config --version >/dev/null 2>&1; then
2817 warn "$pkg_config not found, library detection may fail."
2823 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2827 EXESUF=$(exesuf $target_os)
2828 HOSTEXESUF=$(exesuf $host_os)
2830 # set temporary file name
2831 : ${TMPDIR:=$TEMPDIR}
2835 if ! check_cmd mktemp -u XXXXXX; then
2836 # simple replacement for missing mktemp
2837 # NOT SAFE FOR GENERAL USE
2839 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2844 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2845 (set -C; exec > $tmp) 2>/dev/null ||
2846 die "Unable to create temporary file in $TMPDIR."
2847 append TMPFILES $tmp
2851 trap 'rm -f -- $TMPFILES' EXIT
2855 tmpfile TMPE $EXESUF
2866 # make sure we can execute files in $TMPDIR
2867 cat > $TMPSH 2>> $logfile <<EOF
2870 chmod +x $TMPSH >> $logfile 2>&1
2871 if ! $TMPSH >> $logfile 2>&1; then
2873 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2874 variable to another directory and make sure that it is not mounted noexec.
2876 die "Sanity test failed."
2882 # Filter out MSVC cl.exe options from cflags that shouldn't
2883 # be passed to gas-preprocessor
2893 -std=c99) echo -c99 ;;
2894 -mcpu=*) echo -arch ${flag#*=} ;;
2895 -mieee) echo -ieee ;;
2896 -O*|-fast) echo $flag ;;
2897 -fno-math-errno) echo -assume nomath_errno ;;
2899 -Wall) echo -msg_enable level2 ;;
2900 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2901 -Wl,*) echo $flag ;;
2911 -Wno-switch) echo -Wno-switch-enum ;;
2912 -Wno-format-zero-length) ;;
2913 -Wdisabled-optimization) ;;
2914 -Wno-pointer-sign) echo -Wno-other ;;
2920 msvc_common_flags(){
2923 # In addition to specifying certain flags under the compiler
2924 # specific filters, they must be specified here as well or else the
2925 # generic catch all at the bottom will print the original flag.
2929 -fomit-frame-pointer) ;;
2933 -fno-signed-zeros) ;;
2937 -lz) echo zlib.lib ;;
2938 -lavifil32) echo vfw32.lib ;;
2939 -lavicap32) echo vfw32.lib user32.lib ;;
2940 -lx264) echo libx264.lib ;;
2941 -l*) echo ${flag#-l}.lib ;;
2942 -L*) echo -libpath:${flag#-L} ;;
2949 msvc_common_flags "$@"
2952 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2953 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2954 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2955 -wd4273 -wd4554 -wd4701 ;;
2961 msvc_common_flags "$@"
2964 # Despite what Intel's documentation says -Wall, which is supported
2965 # on Windows, does enable remarks so disable them here.
2966 -Wall) echo $flag -Qdiag-disable:remark ;;
2967 -std=c99) echo -Qstd=c99 ;;
2975 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2976 -fomit-frame-pointer) echo -Mnoframe ;;
2987 case "${flag#*=}" in
2988 native) echo -xtarget=native ;;
2989 v9|niagara) echo -xarch=sparc ;;
2990 ultrasparc) echo -xarch=sparcvis ;;
2991 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2992 i586|pentium) echo -xchip=pentium ;;
2993 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2994 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2995 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2996 pentium4*) echo -xtarget=pentium4 ;;
2997 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2998 *-sse3) echo -xarch=sse3 ;;
2999 core2) echo -xarch=ssse3 -xchip=core2 ;;
3000 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3001 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3002 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3003 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3004 k8|opteron|athlon64|athlon-fx)
3005 echo -xarch=sse2a ;;
3006 athlon*) echo -xarch=pentium_proa ;;
3009 -std=c99) echo -xc99 ;;
3010 -fomit-frame-pointer) echo -xregs=frameptr ;;
3011 -fPIC) echo -KPIC -xcode=pic32 ;;
3012 -W*,*) echo $flag ;;
3013 -f*-*|-W*|-mimpure-text) ;;
3024 case "${flag#*=}" in
3025 armv7-a|cortex-a*) echo -mv=7a8 ;;
3026 armv7-r|cortex-r*) echo -mv=7r4 ;;
3027 armv7-m|cortex-m*) echo -mv=7m3 ;;
3028 armv6*|arm11*) echo -mv=6 ;;
3029 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3031 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3034 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3035 -mfpu=vfp) echo --float_support=vfpv2 ;;
3036 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3037 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3038 -msoft-float) echo --float_support=vfplib ;;
3039 -O[0-3]|-mf=*) echo $flag ;;
3041 -pds=*) echo $flag ;;
3042 -D*|-I*) echo $flag ;;
3043 --gcc|--abi=*) echo $flag ;;
3053 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3054 unset _ld_o _ldflags _ld_lib _ld_path
3055 unset _depflags _DEPCMD _DEPFLAGS
3058 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3060 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3061 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3062 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3065 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3067 gcc_version=$($_cc --version | head -n1)
3068 gcc_basever=$($_cc -dumpversion)
3069 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3070 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3071 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3072 if ! $_cc -dumpversion | grep -q '^2\.'; then
3073 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3077 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3079 _ident=$($_cc --version | head -n1)
3084 elif $_cc -v 2>&1 | grep -q xlc; then
3086 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3088 _cflags_size='-O5 -qcompact'
3089 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3091 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3093 _cflags_speed='-fast'
3095 _flags_filter=ccc_flags
3096 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3097 test -d "$sysroot" || die "No valid sysroot specified."
3099 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3100 armcc_conf="$PWD/armcc.conf"
3101 $_cc --arm_linux_configure \
3102 --arm_linux_config_file="$armcc_conf" \
3103 --configure_sysroot="$sysroot" \
3104 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3105 die "Error creating armcc configuration file."
3106 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3107 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3108 as_default="${cross_prefix}gcc"
3112 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3114 _ident=$($_cc -version | head -n1 | tr -s ' ')
3115 _flags='--gcc --abi=eabi -me'
3118 _depflags='-ppa -ppd=$(@:.o=.d)'
3119 _cflags_speed='-O3 -mf=5'
3120 _cflags_size='-O3 -mf=2'
3121 _flags_filter=tms470_flags
3122 elif $_cc -v 2>&1 | grep -q clang; then
3124 _ident=$($_cc --version 2>/dev/null | head -n1)
3125 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3128 elif $_cc -V 2>&1 | grep -q Sun; then
3130 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3131 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3132 _DEPFLAGS='-xM1 -xc99'
3135 _cflags_size='-O5 -xspace'
3136 _flags_filter=suncc_flags
3137 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3139 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3140 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3143 _flags_filter='filter_out -Wdisabled-optimization'
3144 elif $_cc -v 2>&1 | grep -q Open64; then
3146 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3147 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3150 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3151 elif $_cc -V 2>&1 | grep -q Portland; then
3153 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3154 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3155 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3156 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3158 _flags_filter=pgi_flags
3159 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3161 _ident=$($_cc | head -n1)
3162 # 4509: "This form of conditional instruction is deprecated"
3163 _flags="-nologo -ignore 4509"
3164 _flags_filter=armasm_flags
3165 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3167 _ident=$($_cc 2>&1 | head -n1)
3168 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3169 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3172 if $_cc -nologo- 2>&1 | grep -q Linker; then
3179 _flags_filter=msvc_flags
3181 _ld_path='-libpath:'
3183 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3184 elif $_cc 2>&1 | grep -q Intel; then
3186 _ident=$($_cc 2>&1 | head -n1)
3187 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3188 # Not only is O3 broken on 13.x+ but it is slower on all previous
3189 # versions (tested) as well.
3191 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3192 if $_cc 2>&1 | grep -q Linker; then
3199 _flags_filter=icl_flags
3201 _ld_path='-libpath:'
3202 # -Qdiag-error to make icl error when seeing certain unknown arguments
3203 _flags='-nologo -Qdiag-error:4044,10157'
3204 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3205 # with MSVC which enables it by default.
3206 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3207 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3209 _ident=$($_cc --version | head -n1)
3213 _flags_filter=cparser_flags
3216 eval ${pfx}_type=\$_type
3217 eval ${pfx}_ident=\$_ident
3221 eval ${1}_C=\${_cc_c-\${${1}_C}}
3222 eval ${1}_E=\${_cc_e-\${${1}_E}}
3223 eval ${1}_O=\${_cc_o-\${${1}_O}}
3225 if [ -n "$_depflags" ]; then
3226 eval ${1}_DEPFLAGS=\$_depflags
3228 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3229 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3230 eval DEP${1}FLAGS=\$_flags
3235 cflags_filter=$_flags_filter
3236 cflags_speed=$_cflags_speed
3237 cflags_size=$_cflags_size
3238 cflags_noopt=$_cflags_noopt
3239 add_cflags $_flags $_cflags
3240 cc_ldflags=$_ldflags
3243 probe_cc hostcc "$host_cc"
3244 host_cflags_filter=$_flags_filter
3245 add_host_cflags $_flags $_cflags
3248 test -n "$cc_type" && enable $cc_type ||
3249 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3251 : ${as_default:=$cc}
3252 : ${objcc_default:=$cc}
3253 : ${dep_cc_default:=$cc}
3254 : ${ld_default:=$cc}
3255 : ${host_ld_default:=$host_cc}
3256 set_default ar as objcc dep_cc ld host_ld
3259 asflags_filter=$_flags_filter
3260 add_asflags $_flags $_cflags
3263 probe_cc objcc "$objcc"
3264 objcflags_filter=$_flags_filter
3265 add_objcflags $_flags $_cflags
3269 ldflags_filter=$_flags_filter
3270 add_ldflags $_flags $_ldflags
3271 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3273 LD_LIB=${_ld_lib-$LD_LIB}
3274 LD_PATH=${_ld_path-$LD_PATH}
3276 probe_cc hostld "$host_ld"
3277 host_ldflags_filter=$_flags_filter
3278 add_host_ldflags $_flags $_ldflags
3279 HOSTLD_O=${_ld_o-$HOSTLD_O}
3281 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3282 probe_cc depcc "$dep_cc"
3283 CCDEP=${_DEPCMD:-$DEPCMD}
3284 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3288 if $ar 2>&1 | grep -q Microsoft; then
3291 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3294 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3295 arflags='-Xany -r -c'
3302 add_cflags $extra_cflags
3303 add_objcflags $extra_objcflags
3304 add_asflags $extra_cflags
3306 if test -n "$sysroot"; then
3309 add_cppflags --sysroot="$sysroot"
3310 add_ldflags --sysroot="$sysroot"
3313 add_cppflags -I"$sysinclude"
3314 add_ldflags --sysroot="$sysroot"
3319 if test "$cpu" = host; then
3320 enabled cross_compile &&
3321 die "--cpu=host makes no sense when cross-compiling."
3326 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3328 s/.*$1=\\([^ ]*\\).*/\\1/
3333 cpu=$(check_native -march || check_native -mcpu)
3337 test "${cpu:-host}" = host &&
3338 die "--cpu=host not supported with compiler $cc"
3341 # Deal with common $arch aliases
3365 "Power Macintosh"|ppc*|powerpc*)
3380 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3385 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3388 # Add processor-specific flags
3389 if enabled aarch64; then
3393 cpuflags="-march=$cpu"
3396 cpuflags="-mcpu=$cpu"
3400 elif enabled alpha; then
3402 cpuflags="-mcpu=$cpu"
3404 elif enabled arm; then
3407 check_cpp_condition stddef.h \
3408 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3413 if check_arm_arch 4; then echo armv4;
3414 elif check_arm_arch 4T; then echo armv4t;
3415 elif check_arm_arch 5; then echo armv5;
3416 elif check_arm_arch 5E; then echo armv5e;
3417 elif check_arm_arch 5T; then echo armv5t;
3418 elif check_arm_arch 5TE; then echo armv5te;
3419 elif check_arm_arch 5TEJ; then echo armv5te;
3420 elif check_arm_arch 6; then echo armv6;
3421 elif check_arm_arch 6J; then echo armv6j;
3422 elif check_arm_arch 6K; then echo armv6k;
3423 elif check_arm_arch 6Z; then echo armv6z;
3424 elif check_arm_arch 6ZK; then echo armv6zk;
3425 elif check_arm_arch 6T2; then echo armv6t2;
3426 elif check_arm_arch 7; then echo armv7;
3427 elif check_arm_arch 7A 7_A; then echo armv7-a;
3428 elif check_arm_arch 7S; then echo armv7-a;
3429 elif check_arm_arch 7R 7_R; then echo armv7-r;
3430 elif check_arm_arch 7M 7_M; then echo armv7-m;
3431 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3432 elif check_arm_arch 8A 8_A; then echo armv8-a;
3436 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3440 cpuflags="-march=$cpu"
3441 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3444 cpuflags="-mcpu=$cpu"
3446 cortex-a*) subarch=armv7a ;;
3447 cortex-r*) subarch=armv7r ;;
3448 cortex-m*) enable thumb; subarch=armv7m ;;
3449 arm11*) subarch=armv6 ;;
3450 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3451 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3452 *) subarch=$(probe_arm_arch) ;;
3458 armv5t*) enable fast_clz ;;
3459 armv[6-8]*) enable fast_clz fast_unaligned ;;
3462 elif enabled avr32; then
3467 cpuflags="-mpart=$cpu"
3471 cpuflags="-march=$cpu"
3475 cpuflags="-mcpu=$cpu"
3479 cpuflags="-march=$cpu"
3483 elif enabled bfin; then
3485 cpuflags="-mcpu=$cpu"
3487 elif enabled mips; then
3489 cpuflags="-march=$cpu"
3491 elif enabled ppc; then
3495 case $(tolower $cpu) in
3496 601|ppc601|powerpc601)
3497 cpuflags="-mcpu=601"
3500 603*|ppc603*|powerpc603*)
3501 cpuflags="-mcpu=603"
3504 604*|ppc604*|powerpc604*)
3505 cpuflags="-mcpu=604"
3508 g3|75*|ppc75*|powerpc75*)
3509 cpuflags="-mcpu=750"
3512 g4|745*|ppc745*|powerpc745*)
3513 cpuflags="-mcpu=7450"
3516 74*|ppc74*|powerpc74*)
3517 cpuflags="-mcpu=7400"
3520 g5|970|ppc970|powerpc970)
3521 cpuflags="-mcpu=970"
3525 cpuflags="-mcpu=$cpu"
3529 cpuflags="-mcpu=$cpu"
3533 cpuflags="-mcpu=cell"
3538 cpuflags="-mcpu=e500mc"
3542 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3547 cpuflags="-mcpu=8540 -mhard-float"
3553 elif enabled sparc; then
3556 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3557 cpuflags="-mcpu=$cpu"
3559 ultrasparc*|niagara[234])
3560 cpuflags="-mcpu=$cpu"
3564 elif enabled x86; then
3568 cpuflags="-march=$cpu"
3572 # targets that do NOT support nopl and conditional mov (cmov)
3573 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3574 cpuflags="-march=$cpu"
3577 # targets that do support nopl and conditional mov (cmov)
3578 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3579 cpuflags="-march=$cpu"
3583 # targets that do support conditional mov but on which it's slow
3584 pentium4|pentium4m|prescott|nocona)
3585 cpuflags="-march=$cpu"
3593 if [ "$cpu" != generic ]; then
3594 add_cflags $cpuflags
3595 add_asflags $cpuflags
3596 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3599 # compiler sanity check
3601 int main(void){ return 0; }
3603 if test "$?" != 0; then
3604 echo "$cc is unable to create an executable file."
3605 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3606 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3607 echo "Only do this if you know what cross compiling means."
3609 die "C compiler test failed."
3612 add_cppflags -D_ISOC99_SOURCE
3613 check_cflags -std=c99
3614 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3617 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3621 add_host_cppflags -D_ISOC99_SOURCE
3622 check_host_cflags -std=c99
3623 check_host_cflags -Wall
3624 check_host_cflags -O3
3630 check_code cc "" "int test[2*($expr) - 1]" &&
3631 subarch=$arch64 || subarch=$arch32
3639 check_64bit mips mips64 '_MIPS_SIM > 1'
3643 check_64bit parisc parisc64 'sizeof(void *) > 4'
3647 check_64bit ppc ppc64 'sizeof(void *) > 4'
3651 check_64bit s390 s390x 'sizeof(void *) > 4'
3655 check_64bit sparc sparc64 'sizeof(void *) > 4'
3659 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3660 if test "$subarch" = "x86_64"; then
3667 enabled spic && enable_weak pic
3673 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3674 enabled shared && add_ldflags -Wl,-brtl
3678 enable section_data_rel_ro
3679 SLIB_INSTALL_NAME='$(SLIBNAME)'
3681 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3684 prefix_default="/boot/common"
3685 network_extralibs="-lnetwork"
3689 SHFLAGS='-shared -Wl,-h,$$(@F)'
3690 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3691 network_extralibs="-lsocket -lnsl"
3692 # When using suncc to build, the Solaris linker will mark
3693 # an executable with each instruction set encountered by
3694 # the Solaris assembler. As our libraries contain their own
3695 # guards for processor-specific code, instead suppress
3696 # generation of the HWCAPS ELF section on Solaris x86 only.
3697 enabled_all suncc x86 &&
3698 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3699 add_ldflags -Wl,-M,mapfile
3700 nm_default='nm -P -g'
3701 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3705 oss_indev_extralibs="-lossaudio"
3706 oss_outdev_extralibs="-lossaudio"
3711 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3713 oss_indev_extralibs="-lossaudio"
3714 oss_outdev_extralibs="-lossaudio"
3722 add_extralibs -lpoll -lgnugetopt
3725 enabled ppc && add_asflags -force_cpusubtype_ALL
3726 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3727 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3728 add_ldflags -Wl,-dynamic,-search_paths_first
3730 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3731 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3733 enabled x86_64 && objformat="macho64"
3734 enabled_any pic shared ||
3735 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3738 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3741 if test $target_os = "mingw32ce"; then
3747 if enabled x86_64; then
3748 LIBTARGET="i386:x86-64"
3749 elif enabled arm; then
3752 check_ldflags -Wl,--nxcompat
3753 check_ldflags -Wl,--dynamicbase
3754 shlibdir_default="$bindir_default"
3757 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3758 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3759 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3760 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3762 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3763 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3764 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3766 dlltool="${cross_prefix}dlltool"
3772 if enabled shared; then
3773 # Link to the import library instead of the normal static library
3776 # Cannot build both shared and static libs with MSVC or icl.
3779 shlibdir_default="$bindir_default"
3782 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3783 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3784 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3785 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3787 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3788 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3789 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3796 shlibdir_default="$bindir_default"
3799 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3800 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3801 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3803 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3804 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3808 *-dos|freedos|opendos)
3809 network_extralibs="-lsocket"
3812 add_cppflags -U__STRICT_ANSI__
3816 enable section_data_rel_ro
3820 ranlib="echo ignoring ranlib"
3825 add_cppflags -D_GNU_SOURCE
3826 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3827 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3831 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3832 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3833 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3834 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3835 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3836 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3837 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3838 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3839 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3840 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3844 add_cppflags -D_BSD_SOURCE
3849 add_cppflags -D_QNX_SOURCE
3850 network_extralibs="-lsocket"
3855 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3856 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3857 add_ldflags -Wl,--target1-abs,--no-undefined \
3858 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3859 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3860 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3861 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3862 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3865 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3870 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3871 -D_REENTRANT_SOURCE \
3872 -D_RESEARCH_SOURCE \
3875 add_compat strtod.o strtod=avpriv_strtod
3876 network_extralibs='-lbsd'
3877 exeobjs=compat/plan9/main.o
3883 die "Unknown OS '$target_os'."
3887 # determine libc flavour
3892 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3893 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3894 eval ${pfx}libc_type=uclibc
3895 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3896 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3897 eval ${pfx}libc_type=glibc
3898 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3899 # MinGW headers can be installed on Cygwin, so check for newlib first.
3900 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3901 eval ${pfx}libc_type=newlib
3902 add_${pfx}cppflags -U__STRICT_ANSI__
3903 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3904 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3905 eval ${pfx}libc_type=mingw64
3906 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3907 eval test \$${pfx_no_}cc_type = "gcc" &&
3908 add_${pfx}cppflags -D__printf__=__gnu_printf__
3909 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3910 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3911 eval ${pfx}libc_type=mingw32
3912 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3913 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3914 die "ERROR: MinGW32 runtime version must be >= 3.15."
3915 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3916 eval test \$${pfx_no_}cc_type = "gcc" &&
3917 add_${pfx}cppflags -D__printf__=__gnu_printf__
3918 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3919 eval ${pfx}libc_type=msvcrt
3920 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3921 if [ "$pfx" = host_ ]; then
3922 add_host_cppflags -Dsnprintf=_snprintf
3924 add_compat strtod.o strtod=avpriv_strtod
3925 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3926 _snprintf=avpriv_snprintf \
3927 vsnprintf=avpriv_vsnprintf
3930 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3931 # 0x601 by default unless something else is set by the user.
3932 # This can easily lead to us detecting functions only present
3933 # in such new versions and producing binaries requiring windows 7.0.
3934 # Therefore explicitly set the default to XP unless the user has
3935 # set something else on the command line.
3936 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3937 # family. For these cases, configure is free to use any functions
3938 # found in the SDK headers by default. (Alternatively, we could force
3939 # _WIN32_WINNT to 0x0602 in that case.)
3940 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3941 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3942 #ifdef WINAPI_FAMILY
3943 #include <winapifamily.h>
3944 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3949 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3950 eval ${pfx}libc_type=klibc
3951 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3952 eval ${pfx}libc_type=bionic
3953 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3954 eval ${pfx}libc_type=solaris
3955 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3957 eval ${pfx}libc_type=default
3958 add_${pfx}cppflags -D_DEFAULT_SOURCE
3963 test -n "$libc_type" && enable libc_$libc_type
3965 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3969 add_compat strtod.o strtod=avpriv_strtod
3973 # hacks for compiler/libc/os combinations
3975 if enabled_all tms470 libc_glibc; then
3976 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3977 add_cppflags -D__USER_LABEL_PREFIX__=
3978 add_cppflags -D__builtin_memset=memset
3979 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3980 add_cflags -pds=48 # incompatible redefinition of macro
3983 if enabled_all ccc libc_glibc; then
3984 add_ldflags -Wl,-z,now # calls to libots crash without this
3987 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3988 add_cppflags '-I\$(SRC_PATH)/compat/float'
3991 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3994 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3996 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3998 set_default $PATHS_LIST
4001 # we need to build at least one lib type
4002 if ! enabled_any static shared; then
4004 At least one library type must be built.
4005 Specify --enable-static to build the static libraries or --enable-shared to
4006 build the shared libraries as well. To only build the shared libraries specify
4007 --disable-static in addition to --enable-shared.
4012 die_license_disabled() {
4013 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4016 die_license_disabled gpl libcdio
4017 die_license_disabled gpl libx264
4018 die_license_disabled gpl libx265
4019 die_license_disabled gpl libxavs
4020 die_license_disabled gpl libxvid
4021 die_license_disabled gpl x11grab
4023 die_license_disabled nonfree cuda
4024 die_license_disabled nonfree libfaac
4025 die_license_disabled nonfree libfdk_aac
4026 die_license_disabled nonfree nvenc
4027 die_license_disabled nonfree openssl
4029 die_license_disabled version3 libopencore_amrnb
4030 die_license_disabled version3 libopencore_amrwb
4031 die_license_disabled version3 libvo_aacenc
4032 die_license_disabled version3 libvo_amrwbenc
4034 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4036 disabled optimizations || check_cflags -fomit-frame-pointer
4039 disabled pic && return
4042 case "$target_os" in
4052 enabled pic && enable_weak_pic
4054 check_cc <<EOF || die "Symbol mangling check failed."
4057 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4058 extern_prefix=${sym%%ff_extern*}
4060 check_cc <<EOF && enable_weak inline_asm
4061 void foo(void) { __asm__ volatile ("" ::); }
4065 for restrict_keyword in restrict __restrict__ __restrict; do
4066 check_cc <<EOF && _restrict=$restrict_keyword && break
4067 void foo(char * $restrict_keyword p);
4071 check_cc <<EOF && enable pragma_deprecated
4072 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4075 check_cc <<EOF && enable attribute_packed
4076 struct { int x; } __attribute__((packed)) x;
4079 check_cc <<EOF && enable attribute_may_alias
4080 union { int x; } __attribute__((may_alias)) x;
4083 check_cc <<EOF || die "endian test failed"
4084 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4086 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4089 log "check_gas using '$as' as AS"
4090 # :vararg is used on aarch64, arm and ppc altivec
4091 check_as <<EOF || return 1
4092 .macro m n, y:vararg=0
4097 # .altmacro is only used in arm asm
4098 ! enabled arm || check_as <<EOF || return 1
4105 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4107 enabled_any arm aarch64 && nogas=die
4108 enabled_all ppc altivec && nogas=warn
4112 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4113 gcc) gaspp_as_type=gas ;;
4114 *) gaspp_as_type=$as_type ;;
4117 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4119 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4120 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4122 if ! check_gas ; then
4125 $nogas "GNU assembler not found, install/update gas-preprocessor"
4128 check_as <<EOF && enable as_func
4134 check_inline_asm inline_asm_labels '"1:\n"'
4136 if enabled aarch64; then
4137 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4138 # internal assembler in clang 3.3 does not support this instruction
4139 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4140 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4142 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4144 elif enabled alpha; then
4148 elif enabled arm; then
4150 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4151 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4152 enabled thumb && check_cflags -mthumb || check_cflags -marm
4154 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4156 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4158 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4159 case "${cross_prefix:-$cc}" in
4160 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4161 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4162 __asm__ (".eabi_attribute 28, 1");
4163 int main(void) { return 0; }
4166 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4169 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4170 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4171 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4172 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4173 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4174 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4176 [ $target_os = linux ] || [ $target_os = android ] ||
4177 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4180 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4182 check_as <<EOF && enable as_dn_directive
4187 # llvm's integrated assembler supports .object_arch from llvm 3.5
4188 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4192 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4194 elif enabled mips; then
4196 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4198 # make sure that only an instruction set is enabled
4199 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4201 if enabled mips64; then
4202 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4203 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4204 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4206 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4207 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4208 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4211 elif enabled parisc; then
4213 if enabled gcc; then
4214 case $($cc -dumpversion) in
4215 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4219 elif enabled ppc; then
4221 enable local_aligned_8 local_aligned_16
4223 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4224 check_inline_asm ibm_asm '"add 0, 0, 0"'
4225 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4226 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4228 # AltiVec flags: The FSF version of GCC differs from the Apple version
4229 if enabled altivec; then
4230 check_cflags -maltivec -mabi=altivec &&
4231 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4232 check_cflags -faltivec
4234 # check if our compiler supports Motorola AltiVec C API
4235 check_cc <<EOF || disable altivec
4238 vector signed int v1 = (vector signed int) { 0 };
4239 vector signed int v2 = (vector signed int) { 1 };
4240 v1 = vec_add(v1, v2);
4245 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4248 if enabled vsx; then
4249 check_cflags -mvsx &&
4250 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4253 if enabled power8; then
4254 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4257 elif enabled x86; then
4259 check_builtin rdtsc intrin.h "__rdtsc()"
4260 check_builtin mm_empty mmintrin.h "_mm_empty()"
4262 enable local_aligned_8 local_aligned_16
4264 # check whether EBP is available on x86
4265 # As 'i' is stored on the stack, this program will crash
4266 # if the base pointer is used to access it because the
4267 # base pointer is cleared in the inline assembly code.
4268 check_exec_crash <<EOF && enable ebp_available
4270 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4274 # check whether EBX is available on x86
4275 check_inline_asm ebx_available '""::"b"(0)' &&
4276 check_inline_asm ebx_available '"":::"%ebx"'
4278 # check whether xmm clobbers are supported
4279 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4281 # check whether binutils is new enough to compile SSSE3/MMXEXT
4282 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4283 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4285 if ! disabled_any asm mmx yasm; then
4286 if check_cmd $yasmexe --version; then
4287 enabled x86_64 && yasm_extra="-m amd64"
4288 yasm_debug="-g dwarf2"
4289 elif check_cmd nasm -v; then
4291 yasm_debug="-g -F dwarf"
4292 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4295 YASMFLAGS="-f $objformat $yasm_extra"
4296 enabled pic && append YASMFLAGS "-DPIC"
4297 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4298 case "$objformat" in
4299 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4302 check_yasm "movbe ecx, [5]" && enable yasm ||
4303 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4304 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4305 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4306 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4307 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4308 check_yasm "CPU amdnop" || disable cpunop
4312 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4319 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4321 check_ldflags -Wl,--as-needed
4323 if check_func dlopen; then
4325 elif check_func dlopen -ldl; then
4329 if ! disabled network; then
4330 check_func getaddrinfo $network_extralibs
4331 check_func inet_aton $network_extralibs
4333 check_type netdb.h "struct addrinfo"
4334 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4335 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4336 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4337 check_type poll.h "struct pollfd"
4338 check_type netinet/sctp.h "struct sctp_event_subscribe"
4339 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4340 check_type netinet/in.h "struct sockaddr_in6"
4341 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4342 check_type "sys/types.h sys/socket.h" socklen_t
4344 # Prefer arpa/inet.h over winsock2
4345 if check_header arpa/inet.h ; then
4346 check_func closesocket
4347 elif check_header winsock2.h ; then
4348 check_func_headers winsock2.h closesocket -lws2 &&
4349 network_extralibs="-lws2" ||
4350 { check_func_headers winsock2.h closesocket -lws2_32 &&
4351 network_extralibs="-lws2_32"; } || disable winsock2_h network
4352 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4354 check_type ws2tcpip.h socklen_t
4355 check_type ws2tcpip.h "struct addrinfo"
4356 check_type ws2tcpip.h "struct group_source_req"
4357 check_type ws2tcpip.h "struct ip_mreq_source"
4358 check_type ws2tcpip.h "struct ipv6_mreq"
4359 check_type winsock2.h "struct pollfd"
4360 check_struct winsock2.h "struct sockaddr" sa_len
4361 check_type ws2tcpip.h "struct sockaddr_in6"
4362 check_type ws2tcpip.h "struct sockaddr_storage"
4368 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4369 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4370 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4371 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4373 case "$custom_allocator" in
4375 # jemalloc by default does not use a prefix
4376 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4379 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4384 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4385 check_func ${malloc_prefix}memalign && enable memalign
4386 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4388 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4389 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4393 check_func gethrtime
4395 check_func getrusage
4396 check_func gettimeofday
4399 check_func localtime_r
4400 check_func mach_absolute_time
4404 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4405 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4406 check_func sched_getaffinity
4407 check_func setrlimit
4408 check_func strerror_r
4413 check_func_headers io.h setmode
4414 check_func_headers stdlib.h getenv
4416 check_func_headers windows.h CoTaskMemFree -lole32
4417 check_func_headers windows.h GetProcessAffinityMask
4418 check_func_headers windows.h GetProcessTimes
4419 check_func_headers windows.h GetSystemTimeAsFileTime
4420 check_func_headers windows.h LoadLibrary
4421 check_func_headers windows.h MapViewOfFile
4422 check_func_headers windows.h SetConsoleTextAttribute
4423 check_func_headers windows.h Sleep
4424 check_func_headers windows.h VirtualAlloc
4425 check_struct windows.h "CONDITION_VARIABLE" Ptr
4427 check_header direct.h
4428 check_header dlfcn.h
4429 check_header d3d11.h
4431 check_header dxva2api.h
4433 check_header mach/mach_time.h
4434 check_header malloc.h
4436 check_header sys/mman.h
4437 check_header sys/param.h
4438 check_header sys/resource.h
4439 check_header sys/select.h
4440 check_header sys/time.h
4441 check_header sys/un.h
4442 check_header unistd.h
4443 check_header valgrind/valgrind.h
4444 check_header vdpau/vdpau.h
4445 check_header vdpau/vdpau_x11.h
4446 check_header VideoDecodeAcceleration/VDADecoder.h
4447 check_header windows.h
4448 check_header X11/extensions/XvMClib.h
4450 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4451 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4452 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4454 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4456 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4457 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4458 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4460 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4462 if ! disabled w32threads && ! enabled pthreads; then
4463 check_func_headers "windows.h process.h" _beginthreadex &&
4464 enable w32threads || disable w32threads
4467 # check for some common methods of building with pthread support
4468 # do this before the optional library checks as some of them require pthreads
4469 if ! disabled pthreads && ! enabled w32threads; then
4471 if check_func pthread_join -pthread; then
4473 add_extralibs -pthread
4474 elif check_func pthread_join -pthreads; then
4475 add_cflags -pthreads
4476 add_extralibs -pthreads
4477 elif check_func pthread_join -lpthreadGC2; then
4478 add_extralibs -lpthreadGC2
4479 elif check_lib pthread.h pthread_join -lpthread; then
4481 elif ! check_func pthread_join; then
4486 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4487 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4489 check_lib math.h sin -lm && LIBM="-lm"
4490 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4496 for func in $MATH_FUNCS; do
4497 eval check_mathfunc $func \${${func}_args:-1}
4500 # these are off by default, so fail if requested and not available
4501 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4502 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4503 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4504 enabled cuda && check_lib cuda.h cuInit -lcuda
4505 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4506 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4507 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4508 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4509 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4510 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4511 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4512 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4513 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4514 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4515 done || die "ERROR: libgsm not found"; }
4516 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4517 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4518 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4519 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4520 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4521 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4522 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4523 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4524 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4525 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4526 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4527 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4528 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4529 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4530 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4531 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4532 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4533 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4534 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4535 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4536 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4537 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4538 enabled libvpx_vp8_decoder && {
4539 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4540 disable libvpx_vp8_decoder;
4542 enabled libvpx_vp8_encoder && {
4543 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4544 disable libvpx_vp8_encoder;
4546 enabled libvpx_vp9_decoder && {
4547 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4548 disable libvpx_vp9_decoder;
4550 enabled libvpx_vp9_encoder && {
4551 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4552 disable libvpx_vp9_encoder;
4554 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4555 die "libvpx enabled but no supported decoders found"
4558 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4559 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4560 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4561 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4562 die "ERROR: libx264 version must be >= 0.118."; } &&
4563 { check_cpp_condition x264.h "X264_MPEG2" &&
4565 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4566 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4567 die "ERROR: libx265 version must be >= 57."; }
4568 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4569 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4570 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4571 { ! enabled cross_compile && {
4572 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4573 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4574 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4575 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4576 die "ERROR: mmal not found"; }
4577 enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4578 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4579 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4580 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4581 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4582 die "ERROR: openssl not found"; }
4584 if enabled gnutls; then
4585 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4586 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4590 if enabled libdc1394; then
4591 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4592 enable libdc1394_2; } ||
4593 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4594 enable libdc1394_1; } ||
4595 die "ERROR: No version of libdc1394 found "
4598 if enabled nvenc; then
4599 enabled cuda || check_header cuda.h || die "ERROR: cuda.h not found.";
4600 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4601 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4602 die "ERROR: NVENC API version 4 or older is not supported";
4605 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4606 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4607 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4611 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4612 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4614 check_header linux/fb.h
4615 check_header linux/videodev2.h
4616 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4618 check_header AVFoundation/AVFoundation.h &&
4619 check_objcflags -fobjc-arc &&
4620 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4621 disable AVFoundation_AVFoundation_h
4623 check_header sys/videoio.h
4625 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4626 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4627 # w32api 3.12 had it defined wrong
4628 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4630 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4631 { check_header dev/bktr/ioctl_meteor.h &&
4632 check_header dev/bktr/ioctl_bt848.h; } ||
4633 { check_header machine/ioctl_meteor.h &&
4634 check_header machine/ioctl_bt848.h; } ||
4635 { check_header dev/video/meteor/ioctl_meteor.h &&
4636 check_header dev/video/bktr/ioctl_bt848.h; } ||
4637 check_header dev/ic/bt8xx.h
4639 check_header sndio.h
4640 check_header sys/soundcard.h
4641 check_header soundcard.h
4643 enabled_any alsa_indev alsa_outdev &&
4644 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4646 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4647 check_func jack_port_get_latency_range -ljack
4649 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4651 if enabled libcdio; then
4652 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4653 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4654 die "ERROR: No usable libcdio/cdparanoia found"
4657 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4659 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4660 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4661 enabled libxcb && die "ERROR: libxcb not found";
4662 } && disable x11grab && enable libxcb
4664 disabled libxcb_shm ||
4665 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4666 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4667 } && check_header sys/shm.h && enable libxcb_shm
4669 disabled libxcb_xfixes ||
4670 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4671 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4672 } && enable libxcb_xfixes
4674 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4675 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4678 if enabled x11grab; then
4679 enabled xlib || die "ERROR: Xlib not found"
4680 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4681 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4685 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4688 enabled vaapi && enabled xlib &&
4689 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4693 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4696 enabled vdpau && enabled xlib &&
4697 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4698 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4701 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4703 # add some useful compiler flags if supported
4704 check_cflags -Wdeclaration-after-statement
4706 check_cflags -Wdisabled-optimization
4707 check_cflags -Wpointer-arith
4708 check_cflags -Wredundant-decls
4709 check_cflags -Wwrite-strings
4710 check_cflags -Wtype-limits
4711 check_cflags -Wundef
4712 check_cflags -Wmissing-prototypes
4713 check_cflags -Wstrict-prototypes
4714 enabled extra_warnings && check_cflags -Winline
4715 enabled extra_warnings && check_cflags -Wcast-qual
4717 check_disable_warning(){
4718 warning_flag=-W${1#-Wno-}
4719 test_cflags $warning_flag && add_cflags $1
4722 check_disable_warning -Wno-parentheses
4723 check_disable_warning -Wno-switch
4724 check_disable_warning -Wno-format-zero-length
4725 check_disable_warning -Wno-pointer-sign
4727 # add some linker flags
4728 check_ldflags -Wl,--warn-common
4729 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4730 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4731 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4733 # add some strip flags
4734 # -wN '..@*' is more selective than -x, but not available everywhere.
4735 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4737 enabled neon_clobber_test &&
4738 check_ldflags -Wl,--wrap,avcodec_open2 \
4739 -Wl,--wrap,avcodec_decode_audio4 \
4740 -Wl,--wrap,avcodec_decode_video2 \
4741 -Wl,--wrap,avcodec_decode_subtitle2 \
4742 -Wl,--wrap,avcodec_encode_audio2 \
4743 -Wl,--wrap,avcodec_encode_video2 \
4744 -Wl,--wrap,avcodec_encode_subtitle \
4745 -Wl,--wrap,avresample_convert ||
4746 disable neon_clobber_test
4748 enabled xmm_clobber_test &&
4749 check_ldflags -Wl,--wrap,avcodec_open2 \
4750 -Wl,--wrap,avcodec_decode_audio4 \
4751 -Wl,--wrap,avcodec_decode_video2 \
4752 -Wl,--wrap,avcodec_decode_subtitle2 \
4753 -Wl,--wrap,avcodec_encode_audio2 \
4754 -Wl,--wrap,avcodec_encode_video2 \
4755 -Wl,--wrap,avcodec_encode_subtitle \
4756 -Wl,--wrap,avresample_convert \
4757 -Wl,--wrap,sws_scale ||
4758 disable xmm_clobber_test
4760 echo "X { local: *; };" > $TMPV
4761 if test_ldflags -Wl,--version-script,$TMPV; then
4762 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4763 elif test_ldflags -Wl,-M,$TMPV; then
4764 append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
4767 check_cc <<EOF && enable symver_asm_label
4768 void ff_foo(void) __asm__ ("av_foo@VERSION");
4769 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4771 check_cc <<EOF && enable symver_gnu_asm
4772 __asm__(".symver ff_foo,av_foo@VERSION");
4773 void ff_foo(void) {}
4776 if [ -z "$optflags" ]; then
4777 if enabled small; then
4778 optflags=$cflags_size
4779 elif enabled optimizations; then
4780 optflags=$cflags_speed
4782 optflags=$cflags_noopt
4788 enabled lto && check_ldflags "$@"
4792 if enabled lto; then
4793 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4795 check_ldflags -flto $cpuflags
4798 check_optflags $optflags
4799 check_optflags -fno-math-errno
4800 check_optflags -fno-signed-zeros
4802 if enabled icc; then
4803 # Just warnings, no remarks
4805 # -wd: Disable following warnings
4806 # 144, 167, 556: -Wno-pointer-sign
4807 # 1292: attribute "foo" ignored
4808 # 1419: external declaration in primary source file
4809 # 10006: ignoring unknown option -fno-signed-zeros
4810 # 10148: ignoring unknown option -Wno-parentheses
4811 # 10156: ignoring option '-W'; no argument required
4812 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4813 # 11030: Warning unknown option --as-needed
4814 # 10156: ignoring option '-export'; no argument required
4815 check_ldflags -wd10156,11030
4816 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4817 enable ebp_available
4818 if enabled x86_32; then
4819 icc_version=$($cc -dumpversion)
4820 test ${icc_version%%.*} -ge 11 &&
4821 check_cflags -falign-stack=maintain-16-byte ||
4822 disable aligned_stack
4824 elif enabled ccc; then
4825 # disable some annoying warnings
4826 add_cflags -msg_disable bitnotint
4827 add_cflags -msg_disable mixfuncvoid
4828 add_cflags -msg_disable nonstandcast
4829 add_cflags -msg_disable unsupieee
4830 elif enabled gcc; then
4831 check_optflags -fno-tree-vectorize
4832 check_cflags -Werror=implicit-function-declaration
4833 check_cflags -Werror=missing-prototypes
4834 check_cflags -Werror=return-type
4835 check_cflags -Werror=declaration-after-statement
4836 check_cflags -Werror=vla
4837 check_cflags -Werror=format-security
4838 check_cflags -fdiagnostics-color=auto
4839 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4840 elif enabled llvm_gcc; then
4841 check_cflags -mllvm -stack-alignment=16
4842 elif enabled clang; then
4843 check_cflags -mllvm -stack-alignment=16
4844 check_cflags -Qunused-arguments
4845 check_cflags -Werror=implicit-function-declaration
4846 check_cflags -Werror=missing-prototypes
4847 check_cflags -Werror=return-type
4848 elif enabled cparser; then
4849 add_cflags -Wno-missing-variable-declarations
4850 add_cflags -Wno-empty-statement
4851 elif enabled armcc; then
4852 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4853 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4854 # 2523: use of inline assembly is deprecated
4855 add_cflags -W${armcc_opt},--diag_suppress=2523
4856 add_cflags -W${armcc_opt},--diag_suppress=1207
4857 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4858 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4859 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4860 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4861 elif enabled tms470; then
4862 add_cflags -pds=824 -pds=837
4864 elif enabled pathscale; then
4865 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4866 elif enabled_any msvc icl; then
4867 enabled x86_32 && disable aligned_stack
4868 enabled_all x86_32 debug && add_cflags -Oy-
4869 enabled debug && add_ldflags -debug
4870 enable pragma_deprecated
4871 if enabled icl; then
4872 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4873 # (correctly) on icl 13.x.
4874 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4875 add_cflags -Qansi-alias
4876 # icl will pass the inline asm tests but inline asm is currently
4877 # not supported (build will fail)
4880 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4881 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4882 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4883 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4884 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4885 # MSVC 2013 and newer can handle it fine.
4886 # If this declspec fails, force including stdlib.h before the restrict redefinition
4887 # happens in config.h.
4888 if [ $_restrict != restrict ]; then
4889 check_cc <<EOF || add_cflags -FIstdlib.h
4890 __declspec($_restrict) void* foo(int);
4893 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4896 for pfx in "" host_; do
4897 varname=${pfx%_}cc_type
4898 eval "type=\$$varname"
4899 if [ $type = "msvc" ]; then
4900 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4901 static inline int foo(int a) { return a; }
4908 add_asflags -Qunused-arguments
4914 check_ldflags -Qunused-arguments
4920 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4923 add_cppflags -Dmain=plan9_main
4927 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4929 check_deps $CONFIG_LIST \
4934 enabled_all dxva2 CoTaskMemFree &&
4935 prepend avconv_libs $($ldflags_filter "-lole32") &&
4938 ! enabled_any memalign posix_memalign aligned_malloc &&
4939 enabled simd_align_16 && enable memalign_hack
4941 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4943 for thread in $THREADS_LIST; do
4944 if enabled $thread; then
4945 test -n "$thread_type" &&
4946 die "ERROR: Only one thread type must be selected." ||
4947 thread_type="$thread"
4951 enabled zlib && add_cppflags -DZLIB_CONST
4953 # conditional library dependencies, in linking order
4954 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
4955 enabled resample_filter && prepend avfilter_deps "avresample"
4956 enabled scale_filter && prepend avfilter_deps "swscale"
4958 enabled opus_decoder && prepend avcodec_deps "avresample"
4962 eval "deps=\$$lib_deps"
4963 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4967 map 'expand_deps $v' $LIBRARY_LIST
4969 echo "install prefix $prefix"
4970 echo "source path $source_path"
4971 echo "C compiler $cc"
4972 echo "C library $libc_type"
4973 if test "$host_cc" != "$cc"; then
4974 echo "host C compiler $host_cc"
4975 echo "host C library $host_libc_type"
4977 echo "ARCH $arch ($cpu)"
4978 if test "$build_suffix" != ""; then
4979 echo "build suffix $build_suffix"
4981 if test "$extra_version" != ""; then
4982 echo "version string suffix $extra_version"
4984 echo "big-endian ${bigendian-no}"
4985 echo "runtime cpu detection ${runtime_cpudetect-no}"
4986 if enabled x86; then
4987 echo "${yasmexe} ${yasm-no}"
4988 echo "MMX enabled ${mmx-no}"
4989 echo "MMXEXT enabled ${mmxext-no}"
4990 echo "3DNow! enabled ${amd3dnow-no}"
4991 echo "3DNow! extended enabled ${amd3dnowext-no}"
4992 echo "SSE enabled ${sse-no}"
4993 echo "SSSE3 enabled ${ssse3-no}"
4994 echo "AVX enabled ${avx-no}"
4995 echo "XOP enabled ${xop-no}"
4996 echo "FMA3 enabled ${fma3-no}"
4997 echo "FMA4 enabled ${fma4-no}"
4998 echo "i686 features enabled ${i686-no}"
4999 echo "CMOV is fast ${fast_cmov-no}"
5000 echo "EBX available ${ebx_available-no}"
5001 echo "EBP available ${ebp_available-no}"
5003 if enabled aarch64; then
5004 echo "NEON enabled ${neon-no}"
5005 echo "VFP enabled ${vfp-no}"
5007 if enabled arm; then
5008 echo "ARMv5TE enabled ${armv5te-no}"
5009 echo "ARMv6 enabled ${armv6-no}"
5010 echo "ARMv6T2 enabled ${armv6t2-no}"
5011 echo "VFP enabled ${vfp-no}"
5012 echo "NEON enabled ${neon-no}"
5014 if enabled ppc; then
5015 echo "AltiVec enabled ${altivec-no}"
5016 echo "VSX enabled ${vsx-no}"
5017 echo "POWER8 enabled ${power8-no}"
5018 echo "PPC 4xx optimizations ${ppc4xx-no}"
5019 echo "dcbzl available ${dcbzl-no}"
5021 echo "debug symbols ${debug-no}"
5022 echo "optimize for size ${small-no}"
5023 echo "optimizations ${optimizations-no}"
5024 echo "static ${static-no}"
5025 echo "shared ${shared-no}"
5026 echo "new filter support ${avfilter-no}"
5027 echo "network support ${network-no}"
5028 echo "threading support ${thread_type-no}"
5029 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5030 echo "SDL support ${sdl-no}"
5031 test -n "$random_seed" &&
5032 echo "random seed ${random_seed}"
5035 echo "External libraries:"
5036 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5040 print_enabled '' $LIBRARY_LIST | print_3_columns
5043 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5044 echo "Enabled ${type}s:"
5045 eval list=\$$(toupper $type)_LIST
5046 print_enabled '_*' $list | print_3_columns
5050 license="LGPL version 2.1 or later"
5051 if enabled nonfree; then
5052 license="nonfree and unredistributable"
5053 elif enabled gplv3; then
5054 license="GPL version 3 or later"
5055 elif enabled lgplv3; then
5056 license="LGPL version 3 or later"
5057 elif enabled gpl; then
5058 license="GPL version 2 or later"
5061 echo "License: $license"
5063 echo "Creating config.mak and config.h..."
5065 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5067 config_files="$TMPH config.mak"
5069 cat > config.mak <<EOF
5070 # Automatically generated by configure - do not modify!
5071 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5073 LIBDIR=\$(DESTDIR)$libdir
5074 SHLIBDIR=\$(DESTDIR)$shlibdir
5075 INCDIR=\$(DESTDIR)$incdir
5076 BINDIR=\$(DESTDIR)$bindir
5077 DATADIR=\$(DESTDIR)$datadir
5078 DOCDIR=\$(DESTDIR)$docdir
5079 MANDIR=\$(DESTDIR)$mandir
5080 SRC_PATH=$source_path
5083 INTRINSICS=$intrinsics
5090 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5092 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5103 OBJCFLAGS=$OBJCFLAGS
5118 LDEXEFLAGS=$LDEXEFLAGS
5119 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5120 STRIPFLAGS=$STRIPFLAGS
5121 YASMFLAGS=$YASMFLAGS
5122 BUILDSUF=$build_suffix
5130 EXTRA_VERSION=$extra_version
5132 CCDEP_FLAGS=$CCDEP_FLAGS
5134 ASDEP_FLAGS=$ASDEP_FLAGS
5135 CC_DEPFLAGS=$CC_DEPFLAGS
5136 AS_DEPFLAGS=$AS_DEPFLAGS
5139 HOSTCFLAGS=$host_cflags
5140 HOSTCPPFLAGS=$host_cppflags
5141 HOSTEXESUF=$HOSTEXESUF
5142 HOSTLDFLAGS=$host_ldflags
5145 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5146 HOSTCCDEP=$HOSTCCDEP
5147 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5148 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5152 TARGET_EXEC=$target_exec $target_exec_args
5153 TARGET_PATH=$target_path
5154 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5155 CFLAGS-avplay=$sdl_cflags
5156 ZLIB=$($ldflags_filter -lz)
5157 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5158 EXTRALIBS=$extralibs
5159 COMPAT_OBJS=$compat_objs
5162 LIBTARGET=${LIBTARGET}
5163 SLIBNAME=${SLIBNAME}
5164 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5165 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5166 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5167 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5168 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5169 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5170 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5171 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5172 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5177 name=$(toupper $lcname)
5178 file=$source_path/$lcname/version.h
5179 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5180 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5181 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5182 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5183 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5186 map 'get_version $v' $LIBRARY_LIST
5188 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5190 print_program_libs(){
5191 eval "program_libs=\$${1}_libs"
5192 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5195 map 'print_program_libs $v' $PROGRAM_LIST
5198 /* Automatically generated by configure - do not modify! */
5199 #ifndef LIBAV_CONFIG_H
5200 #define LIBAV_CONFIG_H
5201 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5202 #define LIBAV_LICENSE "$(c_escape $license)"
5203 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5204 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5205 #define restrict $_restrict
5206 #define EXTERN_PREFIX "${extern_prefix}"
5207 #define EXTERN_ASM ${extern_prefix}
5208 #define SLIBSUF "$SLIBSUF"
5211 test -n "$malloc_prefix" &&
5212 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5214 if enabled yasm; then
5215 append config_files $TMPASM
5219 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5221 print_config ARCH_ "$config_files" $ARCH_LIST
5222 print_config HAVE_ "$config_files" $HAVE_LIST
5223 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5227 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5229 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5230 cp_if_changed $TMPH config.h
5233 enabled yasm && cp_if_changed $TMPASM config.asm
5236 /* Generated by ffconf */
5237 #ifndef AVUTIL_AVCONFIG_H
5238 #define AVUTIL_AVCONFIG_H
5241 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5243 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5245 cp_if_changed $TMPH libavutil/avconfig.h
5247 test -n "$WARNINGS" && printf "\n$WARNINGS"
5249 # build pkg-config files
5252 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5255 pkgconfig_generate(){
5257 shortname=${name#lib}${build_suffix}
5261 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5262 requires=${requires%, }
5263 enabled ${name#lib} || return 0
5265 cat <<EOF > $name/$name.pc
5267 exec_prefix=\${prefix}
5272 Description: $comment
5274 Requires: $(enabled shared || echo $requires)
5275 Requires.private: $(enabled shared && echo $requires)
5277 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5278 Libs.private: $(enabled shared && echo $libs)
5279 Cflags: -I\${includedir}
5281 cat <<EOF > $name/$name-uninstalled.pc
5284 libdir=\${pcfiledir}
5285 includedir=${source_path}
5288 Description: $comment
5292 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5293 Cflags: -I\${includedir}
5297 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5298 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5299 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5300 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5301 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5302 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5303 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"