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}
493 eval test "x\$${var#!}_requested" = "xyes" && die "${var%%_*} cannot be enabled"
512 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
518 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
524 enabled $var && continue
525 eval sel="\$${var}_select"
526 eval sgs="\$${var}_suggest"
530 enable_deep_weak $sgs
542 disabled $var && continue
550 do_enable_deep_force(){
552 enabled $var && continue
553 eval sel="\$${var}_deps\ \$${var}_deps_any\ \$${var}_select\ \$${var}_suggest\ \$${var}_select_any"
555 enable_deep_force $sel
561 do_enable_deep_force $*
563 is_in $var $ALL_COMPONENTS $COMPONENT_LIST $LIBRARY_LIST && enable $var
568 disable $* # force the refresh of the dependencies
570 enable ${var}_requested
577 test "${1#!}" = "$1" && op== || op=!=
578 eval test "x\$${1#!}" $op "xyes"
582 test "${1#!}" = "$1" && op== || op=!=
583 eval test "x\$${1#!}" $op "xno"
588 enabled $opt || return 1
594 disabled $opt || return 1
600 enabled $opt && return 0
606 disabled $opt && return 0
613 eval : \${$opt:=\$${opt}_default}
621 [ $var = $value ] && return 0
629 enabled ${cfg}_checking && die "Circular dependency for $cfg."
630 disabled ${cfg}_checking && continue
631 enable ${cfg}_checking
634 eval dep_all="\$${cfg}_deps"
635 eval dep_any="\$${cfg}_deps_any\ \$${cfg}_select_any"
636 eval dep_sel="\$${cfg}_select"
637 eval dep_sgs="\$${cfg}_suggest"
638 eval dep_ifa="\$${cfg}_if"
639 eval dep_ifn="\$${cfg}_if_any"
641 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
642 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
643 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
645 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
646 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
647 enabled_all $dep_all || disable $cfg
648 enabled_any $dep_any || disable $cfg
649 disabled_any $dep_sel && disable $cfg
651 if enabled $cfg; then
653 enable_deep_weak $dep_sgs
656 disable ${cfg}_checking
665 for cfg in $allopts; do
666 enabled $cfg || continue
667 eval dep_extralibs="\$${cfg}_extralibs"
668 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
676 map 'eval echo "$v \${$v:-no}"' "$@" |
677 awk "BEGIN { split(\"$files\", files) }
679 c = \"$pfx\" toupper(\$1);
685 if (file ~ /\\.h\$/) {
686 printf(\"#define %s %d\\n\", c, v) >>file;
687 } else if (file ~ /\\.asm\$/) {
688 printf(\"%%define %s %d\\n\", c, v) >>file;
689 } else if (file ~ /\\.mak\$/) {
690 n = -v ? \"\" : \"!\";
691 printf(\"%s%s=yes\\n\", n, c) >>file;
701 enabled $v && printf "%s\n" ${v%$suf};
708 eval "$var=\"\$$var $*\""
714 eval "$var=\"$* \$$var\""
720 for tok in $(eval echo \$$var); do
721 uniq_list="$(filter_out $tok $uniq_list) $tok"
723 eval "$var=\"${uniq_list}\""
731 append CFLAGS $($cflags_filter "$@")
735 append ASFLAGS $($asflags_filter "$@")
739 append OBJCFLAGS $($objcflags_filter "$@")
743 append LDFLAGS $($ldflags_filter "$@")
747 append LDEXEFLAGS $($ldflags_filter "$@")
751 append STRIPFLAGS "$@"
755 prepend extralibs $($ldflags_filter "$@")
759 append host_cppflags "$@"
763 append host_cflags $($host_cflags_filter "$@")
767 append host_ldflags $($host_ldflags_filter "$@")
771 append compat_objs $1
773 map 'add_cppflags -D$v' "$@"
778 "$@" >> $logfile 2>&1
782 eval printf '%s\\n' $CC_O
786 eval printf '%s\\n' $CC_E
793 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
800 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
807 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
811 eval printf '%s\\n' $AS_O
818 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
822 log check_inline_asm "$@"
827 check_cc "$@" <<EOF && enable $name
828 void foo(void){ __asm__ volatile($code); }
834 check_inline_asm ${1}_inline "\"$2\""
835 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
843 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
847 eval printf '%s\\n' $LD_O
852 flags=$(filter_out '-l*' "$@")
853 libs=$(filter '-l*' "$@")
854 check_cc $($cflags_filter $flags) || return
855 flags=$($ldflags_filter $flags)
856 libs=$($ldflags_filter $libs)
857 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
862 test "${hdr%.h}" = "${hdr}" &&
863 echo "#include $hdr" ||
864 echo "#include <$hdr>"
874 for hdr in $headers; do
877 echo "int main(void) { $code; return 0; }"
878 } | check_$check "$@"
882 log check_cppflags "$@"
883 check_cc "$@" <<EOF && append CPPFLAGS "$@"
890 set -- $($cflags_filter "$@")
897 log check_cflags "$@"
898 test_cflags "$@" && add_cflags "$@"
903 set -- $($cflags_filter "$@")
904 check_objcc "$@" <<EOF
910 log check_cflags "$@"
911 test_objcflags "$@" && add_objcflags "$@"
915 log test_ldflags "$@"
917 int main(void){ return 0; }
922 log check_ldflags "$@"
923 test_ldflags "$@" && add_ldflags "$@"
927 log test_stripflags "$@"
928 # call check_cc to get a fresh TMPO
930 int main(void) { return 0; }
932 check_cmd $strip $STRIPFLAGS "$@" $TMPO
936 log check_stripflags "$@"
937 test_stripflags "$@" && add_stripflags "$@"
941 log check_header "$@"
945 check_cpp "$@" <<EOF && enable_safe $header
956 check_ld "$@" <<EOF && enable $func
958 int main(void){ $func(); }
963 log check_mathfunc "$@"
967 test $narg = 2 && args="f, g" || args="f"
969 check_ld "$@" <<EOF && enable $func
971 float foo(float f, float g) { return $func($args); }
972 int main(void){ return 0; }
976 check_func_headers(){
977 log check_func_headers "$@"
982 for hdr in $headers; do
985 for func in $funcs; do
986 echo "long check_$func(void) { return (long) $func; }"
988 echo "int main(void) { return 0; }"
989 } | check_ld "$@" && enable $funcs && enable_safe $headers
992 check_cpp_condition(){
993 log check_cpp_condition "$@"
1000 #error "unsatisfied condition: $condition"
1010 check_header $header && check_func $func "$@" && add_extralibs "$@"
1018 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1022 log check_pkg_config "$@"
1027 check_cmd $pkg_config --exists --print-errors $pkg || return
1028 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1029 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1030 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1031 set_safe "${pkg}_cflags" $pkg_cflags &&
1032 set_safe "${pkg}_libs" $pkg_libs
1036 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1042 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1043 # are safe but may not be available everywhere. Thus we use
1044 # raise(SIGTERM) instead. The check is run in a subshell so we
1045 # can redirect the "Terminated" message from the shell. SIGBUS
1046 # is not defined by standard C so it is used conditionally.
1048 (check_exec "$@") >> $logfile 2>&1 <<EOF
1050 static void sighandler(int sig){
1056 int (*func_ptr)(void) = foo;
1058 signal(SIGILL, sighandler);
1059 signal(SIGFPE, sighandler);
1060 signal(SIGSEGV, sighandler);
1062 signal(SIGBUS, sighandler);
1074 disable_safe "$type"
1075 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1079 log check_struct "$@"
1084 disable_safe "${struct}_${member}"
1085 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1086 enable_safe "${struct}_${member}"
1090 log check_builtin "$@"
1096 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1099 check_compile_assert(){
1100 log check_compile_assert "$@"
1106 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1114 check_lib $header $func "$@" || die "ERROR: $name not found"
1122 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1125 require_pkg_config(){
1127 check_pkg_config "$@" || die "ERROR: $pkg not found"
1128 add_cflags $(get_safe "${pkg}_cflags")
1129 add_extralibs $(get_safe "${pkg}_libs")
1133 eval printf '%s\\n' $HOSTCC_E
1137 eval printf '%s\\n' $HOSTCC_O
1141 log check_host_cc "$@"
1144 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1148 log check_host_cpp "$@"
1151 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1154 check_host_cppflags(){
1155 log check_host_cppflags "$@"
1156 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1161 check_host_cflags(){
1162 log check_host_cflags "$@"
1163 set -- $($host_cflags_filter "$@")
1164 check_host_cc "$@" <<EOF && append host_cflags "$@"
1169 check_host_cpp_condition(){
1170 log check_host_cpp_condition "$@"
1174 check_host_cpp "$@" <<EOF
1177 #error "unsatisfied condition: $condition"
1185 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1189 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1190 mkdir -p "$(dirname $2)"
1194 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1195 # system-dependent things.
1197 AVCODEC_COMPONENTS="
1205 AVDEVICE_COMPONENTS="
1209 AVFILTER_COMPONENTS="
1212 AVFORMAT_COMPONENTS="
1218 AVRESAMPLE_COMPONENTS=""
1219 AVUTIL_COMPONENTS=""
1223 $AVDEVICE_COMPONENTS
1224 $AVFILTER_COMPONENTS
1225 $AVFORMAT_COMPONENTS
1226 $AVRESAMPLE_COMPONENTS
1232 filter_audio_example
1236 transcode_aac_example
1239 EXTERNAL_LIBRARY_LIST="
1295 safe_bitstream_reader
1349 $EXTERNAL_LIBRARY_LIST
1414 ARCH_EXT_LIST_X86_SIMD="
1442 $ARCH_EXT_LIST_X86_SIMD
1447 ARCH_EXT_LIST_MIPS="
1481 sync_val_compare_and_swap
1495 AVFoundation_AVFoundation_h
1500 cdio_paranoia_paranoia_h
1501 dev_bktr_ioctl_bt848_h
1502 dev_bktr_ioctl_meteor_h
1504 dev_video_bktr_ioctl_bt848_h
1505 dev_video_meteor_ioctl_meteor_h
1513 machine_ioctl_bt848_h
1514 machine_ioctl_meteor_h
1578 GetProcessAffinityMask
1579 GetProcessMemoryInfo
1582 GetSystemTimeAsFileTime
1587 jack_port_get_latency_range
1599 SetConsoleTextAttribute
1610 TOOLCHAIN_FEATURES="
1631 CONDITION_VARIABLE_Ptr
1634 struct_group_source_req
1635 struct_ip_mreq_source
1638 struct_rusage_ru_maxrss
1640 struct_sockaddr_sa_len
1641 struct_sockaddr_storage
1642 struct_v4l2_frmivalenum_discrete
1647 $(add_suffix _external $ARCH_EXT_LIST)
1648 $(add_suffix _inline $ARCH_EXT_LIST)
1675 # options emitted with CONFIG_ prefix but not available on the command line
1817 # code dependency declarations
1819 # architecture extensions
1824 armv8_deps="aarch64"
1825 neon_deps_any="aarch64 arm"
1826 intrinsics_neon_deps="neon"
1827 vfp_deps_any="aarch64 arm"
1830 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1838 x86_64_select="i686"
1839 x86_64_suggest="fast_cmov"
1842 amd3dnowext_deps="amd3dnow"
1858 mmx_external_deps="yasm"
1859 mmx_inline_deps="inline_asm"
1860 mmx_suggest="mmx_external mmx_inline"
1862 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1863 eval dep=\$${ext}_deps
1864 eval ${ext}_external_deps='"${dep}_external"'
1865 eval ${ext}_inline_deps='"${dep}_inline"'
1866 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1869 aligned_stack_if_any="aarch64 ppc x86"
1870 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1871 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1872 fast_unaligned_if_any="aarch64 ppc x86"
1873 simd_align_16_if_any="altivec neon sse"
1875 # system capabilities
1876 symver_if_any="symver_asm_label symver_gnu_asm"
1877 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1880 atomics_gcc_if="sync_val_compare_and_swap"
1881 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1882 atomics_win32_if="MemoryBarrier"
1883 atomics_native_if_any="$ATOMICS_LIST"
1884 w32threads_deps="atomics_native"
1885 threads_if_any="$THREADS_LIST"
1889 dirac_parse_select="golomb"
1890 error_resilience_select="me_cmp"
1891 faandct_deps="faan fdctdsp"
1892 faanidct_deps="faan idctdsp"
1893 intrax8_select="error_resilience"
1896 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1897 mpeg_er_select="error_resilience"
1898 mpegaudio_select="mpegaudiodsp"
1899 mpegaudiodsp_select="dct"
1900 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1901 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1902 nvenc_deps_any="dlopen LoadLibrary"
1903 nvenc_extralibs='$ldl'
1907 # decoders / encoders
1908 aac_decoder_select="imdct15 mdct sinewin"
1909 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1910 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1911 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1912 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1913 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1914 adpcm_g722_decoder_select="g722dsp"
1915 adpcm_g722_encoder_select="g722dsp"
1916 aic_decoder_select="golomb idctdsp"
1917 alac_encoder_select="lpc"
1918 als_decoder_select="bswapdsp"
1919 amrnb_decoder_select="lsp"
1920 amrwb_decoder_select="lsp"
1921 amv_decoder_select="sp5x_decoder"
1922 ape_decoder_select="bswapdsp"
1923 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1924 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1925 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1926 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1927 atrac1_decoder_select="mdct sinewin"
1928 atrac3_decoder_select="mdct"
1929 atrac3p_decoder_select="mdct sinewin"
1930 bink_decoder_select="blockdsp hpeldsp"
1931 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1932 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1933 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1934 cllc_decoder_select="bswapdsp"
1935 comfortnoise_encoder_select="lpc"
1936 cook_decoder_select="audiodsp mdct sinewin"
1937 cscd_decoder_select="lzo"
1938 cscd_decoder_suggest="zlib"
1939 dca_decoder_select="fmtconvert mdct"
1940 dds_decoder_select="texturedsp"
1941 dnxhd_decoder_select="blockdsp idctdsp"
1942 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1943 dvvideo_decoder_select="dvprofile idctdsp"
1944 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1945 dxa_decoder_deps="zlib"
1946 dxv_decoder_select="lzf texturedsp"
1947 eac3_decoder_select="ac3_decoder"
1948 eac3_encoder_select="ac3_encoder"
1949 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1950 eatgq_decoder_select="aandcttables idctdsp"
1951 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1952 exr_decoder_deps="zlib"
1953 ffv1_decoder_select="golomb rangecoder"
1954 ffv1_encoder_select="rangecoder"
1955 ffvhuff_decoder_select="huffyuv_decoder"
1956 ffvhuff_encoder_select="huffyuv_encoder"
1957 fic_decoder_select="golomb"
1958 flac_decoder_select="flacdsp golomb"
1959 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1960 flashsv_decoder_deps="zlib"
1961 flashsv_encoder_deps="zlib"
1962 flashsv2_decoder_deps="zlib"
1963 flv_decoder_select="h263_decoder"
1964 flv_encoder_select="h263_encoder"
1965 fourxm_decoder_select="blockdsp bswapdsp"
1966 fraps_decoder_select="bswapdsp huffman"
1967 g2m_decoder_deps="zlib"
1968 g2m_decoder_select="blockdsp idctdsp jpegtables"
1969 h261_decoder_select="mpeg_er mpegvideo"
1970 h261_encoder_select="aandcttables mpegvideoenc"
1971 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1972 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1973 h263i_decoder_select="h263_decoder"
1974 h263p_encoder_select="h263_encoder"
1975 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1976 h264_decoder_suggest="error_resilience"
1977 h264_nvenc_encoder_deps="nvenc"
1978 h264_qsv_decoder_deps="libmfx"
1979 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1980 h264_qsv_encoder_deps="libmfx"
1981 h264_qsv_encoder_select="qsvenc"
1982 hap_decoder_select="snappy texturedsp"
1983 hap_encoder_deps="libsnappy"
1984 hap_encoder_select="texturedspenc"
1985 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1986 hevc_nvenc_encoder_deps="nvenc"
1987 hevc_qsv_encoder_deps="libmfx"
1988 hevc_qsv_decoder_deps="libmfx"
1989 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1990 hevc_qsv_encoder_select="qsvenc"
1991 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1992 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1993 iac_decoder_select="imc_decoder"
1994 imc_decoder_select="bswapdsp fft mdct sinewin"
1995 indeo3_decoder_select="hpeldsp"
1996 indeo4_decoder_select="ividsp"
1997 indeo5_decoder_select="ividsp"
1998 interplay_video_decoder_select="hpeldsp"
1999 jpegls_decoder_select="golomb mjpeg_decoder"
2000 jpegls_encoder_select="golomb"
2001 jv_decoder_select="blockdsp"
2002 lagarith_decoder_select="huffyuvdsp"
2003 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2004 loco_decoder_select="golomb"
2005 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2006 metasound_decoder_select="lsp mdct sinewin"
2007 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2008 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2009 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2010 mjpegb_decoder_select="mjpeg_decoder"
2011 mlp_decoder_select="mlp_parser"
2012 motionpixels_decoder_select="bswapdsp"
2013 mp1_decoder_select="mpegaudio"
2014 mp1float_decoder_select="mpegaudio"
2015 mp2_decoder_select="mpegaudio"
2016 mp2float_decoder_select="mpegaudio"
2017 mp3_decoder_select="mpegaudio"
2018 mp3adu_decoder_select="mpegaudio"
2019 mp3adufloat_decoder_select="mpegaudio"
2020 mp3float_decoder_select="mpegaudio"
2021 mp3on4_decoder_select="mpegaudio"
2022 mp3on4float_decoder_select="mpegaudio"
2023 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2024 mpc8_decoder_select="mpegaudiodsp"
2025 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2026 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2027 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2028 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2029 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2030 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2031 mpeg2_qsv_decoder_deps="libmfx"
2032 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2033 mpeg2_qsv_encoder_deps="libmfx"
2034 mpeg2_qsv_encoder_select="qsvenc"
2035 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2036 mpeg4_encoder_select="h263_encoder"
2037 msa1_decoder_select="mss34dsp"
2038 msmpeg4v1_decoder_select="h263_decoder"
2039 msmpeg4v2_decoder_select="h263_decoder"
2040 msmpeg4v2_encoder_select="h263_encoder"
2041 msmpeg4v3_decoder_select="h263_decoder"
2042 msmpeg4v3_encoder_select="h263_encoder"
2043 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2044 mts2_decoder_select="mss34dsp"
2045 mxpeg_decoder_select="mjpeg_decoder"
2046 nellymoser_decoder_select="mdct sinewin"
2047 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2048 nuv_decoder_select="idctdsp lzo"
2049 nvenc_h264_encoder_deps="nvenc"
2050 nvenc_hevc_encoder_deps="nvenc"
2051 on2avc_decoder_select="mdct"
2052 opus_decoder_deps="avresample"
2053 opus_decoder_select="imdct15"
2054 png_decoder_deps="zlib"
2055 png_encoder_deps="zlib"
2056 png_encoder_select="huffyuvencdsp"
2057 prores_decoder_select="idctdsp"
2058 prores_encoder_select="fdctdsp"
2059 qcelp_decoder_select="lsp"
2060 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2061 ra_144_encoder_select="audio_frame_queue lpc"
2062 ralf_decoder_select="golomb"
2063 rscc_decoder_deps="zlib"
2064 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2065 rv10_encoder_select="h263_encoder"
2066 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2067 rv20_encoder_select="h263_encoder"
2068 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2069 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2070 screenpresso_decoder_deps="zlib"
2071 shorten_decoder_select="golomb"
2072 sipr_decoder_select="lsp"
2073 sp5x_decoder_select="mjpeg_decoder"
2074 svq1_decoder_select="hpeldsp"
2075 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2076 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2077 svq3_decoder_suggest="zlib"
2078 tak_decoder_select="audiodsp"
2079 tdsc_decoder_deps="zlib"
2080 tdsc_decoder_select="mjpeg_decoder"
2081 theora_decoder_select="vp3_decoder"
2082 thp_decoder_select="mjpeg_decoder"
2083 tiff_decoder_suggest="zlib"
2084 tiff_encoder_suggest="zlib"
2085 truehd_decoder_select="mlp_decoder"
2086 truemotion2_decoder_select="bswapdsp"
2087 truespeech_decoder_select="bswapdsp"
2088 tscc_decoder_deps="zlib"
2089 txd_decoder_select="texturedsp"
2090 twinvq_decoder_select="mdct lsp sinewin"
2091 utvideo_decoder_select="bswapdsp"
2092 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2093 vble_decoder_select="huffyuvdsp"
2094 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2095 vc1image_decoder_select="vc1_decoder"
2096 vorbis_decoder_select="mdct"
2097 vorbis_encoder_select="mdct"
2098 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2099 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2100 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2101 vp6a_decoder_select="vp6_decoder"
2102 vp6f_decoder_select="vp6_decoder"
2103 vp7_decoder_select="h264pred videodsp vp8dsp"
2104 vp8_decoder_select="h264pred videodsp vp8dsp"
2105 vp9_decoder_select="videodsp"
2106 webp_decoder_select="vp8_decoder"
2107 wmapro_decoder_select="mdct sinewin wma_freqs"
2108 wmav1_decoder_select="mdct sinewin wma_freqs"
2109 wmav1_encoder_select="mdct sinewin wma_freqs"
2110 wmav2_decoder_select="mdct sinewin wma_freqs"
2111 wmav2_encoder_select="mdct sinewin wma_freqs"
2112 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2113 wmv1_decoder_select="h263_decoder"
2114 wmv1_encoder_select="h263_encoder"
2115 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2116 wmv2_encoder_select="h263_encoder wmv2dsp"
2117 wmv3_decoder_select="vc1_decoder"
2118 wmv3image_decoder_select="wmv3_decoder"
2119 zerocodec_decoder_deps="zlib"
2120 zlib_decoder_deps="zlib"
2121 zlib_encoder_deps="zlib"
2122 zmbv_decoder_deps="zlib"
2123 zmbv_encoder_deps="zlib"
2125 # hardware accelerators
2126 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2127 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2128 vaapi_deps="va_va_h"
2129 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2130 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2131 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2133 h263_vaapi_hwaccel_deps="vaapi"
2134 h263_vaapi_hwaccel_select="h263_decoder"
2135 h264_d3d11va_hwaccel_deps="d3d11va"
2136 h264_d3d11va_hwaccel_select="h264_decoder"
2137 h264_dxva2_hwaccel_deps="dxva2"
2138 h264_dxva2_hwaccel_select="h264_decoder"
2139 h264_mmal_decoder_deps="mmal"
2140 h264_mmal_hwaccel_deps="mmal"
2141 h264_mmal_decoder_select="h264_decoder"
2142 h264_mmal_encoder_deps="mmal"
2143 h264_qsv_hwaccel_deps="libmfx"
2144 h264_vaapi_hwaccel_deps="vaapi"
2145 h264_vaapi_hwaccel_select="h264_decoder"
2146 h264_vda_hwaccel_deps="vda"
2147 h264_vda_hwaccel_select="h264_decoder"
2148 h264_vda_old_hwaccel_deps="vda"
2149 h264_vda_old_hwaccel_select="h264_decoder"
2150 h264_vdpau_hwaccel_deps="vdpau"
2151 h264_vdpau_hwaccel_select="h264_decoder"
2152 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2153 hevc_d3d11va_hwaccel_select="hevc_decoder"
2154 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2155 hevc_dxva2_hwaccel_select="hevc_decoder"
2156 hevc_qsv_hwaccel_deps="libmfx"
2157 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2158 hevc_vdpau_hwaccep_select="hevc_decoder"
2159 mpeg1_vdpau_hwaccel_deps="vdpau"
2160 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2161 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2162 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2163 mpeg2_dxva2_hwaccel_deps="dxva2"
2164 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2165 mpeg2_qsv_hwaccel_deps="libmfx"
2166 mpeg2_vaapi_hwaccel_deps="vaapi"
2167 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2168 mpeg2_vdpau_hwaccel_deps="vdpau"
2169 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2170 mpeg4_vaapi_hwaccel_deps="vaapi"
2171 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2172 mpeg4_vdpau_hwaccel_deps="vdpau"
2173 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2174 vc1_d3d11va_hwaccel_deps="d3d11va"
2175 vc1_d3d11va_hwaccel_select="vc1_decoder"
2176 vc1_dxva2_hwaccel_deps="dxva2"
2177 vc1_dxva2_hwaccel_select="vc1_decoder"
2178 vc1_vaapi_hwaccel_deps="vaapi"
2179 vc1_vaapi_hwaccel_select="vc1_decoder"
2180 vc1_vdpau_hwaccel_deps="vdpau"
2181 vc1_vdpau_hwaccel_select="vc1_decoder"
2182 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2183 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2184 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2185 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2188 h264_parser_select="h264_decoder"
2189 hevc_parser_select="golomb"
2190 mpegvideo_parser_select="mpegvideo"
2191 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2192 vc1_parser_select="mpegvideo startcode vc1_decoder"
2195 mjpeg2jpeg_bsf_select="jpegtables"
2197 # external libraries
2198 libdcadec_decoder_deps="libdcadec"
2199 libfaac_encoder_deps="libfaac"
2200 libfaac_encoder_select="audio_frame_queue"
2201 libfdk_aac_decoder_deps="libfdk_aac"
2202 libfdk_aac_encoder_deps="libfdk_aac"
2203 libfdk_aac_encoder_select="audio_frame_queue"
2204 libgsm_decoder_deps="libgsm"
2205 libgsm_encoder_deps="libgsm"
2206 libgsm_ms_decoder_deps="libgsm"
2207 libgsm_ms_encoder_deps="libgsm"
2208 libilbc_decoder_deps="libilbc"
2209 libilbc_encoder_deps="libilbc"
2210 libkvazaar_encoder_deps="libkvazaar"
2211 libmp3lame_encoder_deps="libmp3lame"
2212 libmp3lame_encoder_select="audio_frame_queue"
2213 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2214 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2215 libopencore_amrnb_encoder_select="audio_frame_queue"
2216 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2217 libopenh264_encoder_deps="libopenh264"
2218 libopenjpeg_decoder_deps="libopenjpeg"
2219 libopenjpeg_encoder_deps="libopenjpeg"
2220 libopus_decoder_deps="libopus"
2221 libopus_encoder_deps="libopus"
2222 libopus_encoder_select="audio_frame_queue"
2223 libschroedinger_decoder_deps="libschroedinger"
2224 libschroedinger_encoder_deps="libschroedinger"
2225 libspeex_decoder_deps="libspeex"
2226 libspeex_encoder_deps="libspeex"
2227 libspeex_encoder_select="audio_frame_queue"
2228 libtheora_encoder_deps="libtheora"
2229 libtwolame_encoder_deps="libtwolame"
2230 libvo_aacenc_encoder_deps="libvo_aacenc"
2231 libvo_aacenc_encoder_select="audio_frame_queue"
2232 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2233 libvorbis_encoder_deps="libvorbis"
2234 libvorbis_encoder_select="audio_frame_queue"
2235 libvpx_vp8_decoder_deps="libvpx"
2236 libvpx_vp8_encoder_deps="libvpx"
2237 libvpx_vp9_decoder_deps="libvpx"
2238 libvpx_vp9_encoder_deps="libvpx"
2239 libwavpack_encoder_deps="libwavpack"
2240 libwebp_encoder_deps="libwebp"
2241 libx262_encoder_deps="libx262"
2242 libx264_encoder_deps="libx264"
2243 libx265_encoder_deps="libx265"
2244 libxavs_encoder_deps="libxavs"
2245 libxvid_encoder_deps="libxvid"
2248 ac3_demuxer_select="ac3_parser"
2249 asf_demuxer_select="riffdec"
2250 asf_muxer_select="riffenc"
2251 asf_stream_muxer_select="asf_muxer"
2252 avi_demuxer_select="riffdec"
2253 avi_muxer_select="riffenc"
2254 avisynth_demuxer_deps="avisynth"
2255 avisynth_demuxer_select="riffdec"
2256 caf_demuxer_select="riffdec"
2257 dash_muxer_select="mp4_muxer"
2258 dirac_demuxer_select="dirac_parser"
2259 dv_demuxer_select="dvprofile"
2260 dv_muxer_select="dvprofile"
2261 dxa_demuxer_select="riffdec"
2262 eac3_demuxer_select="ac3_parser"
2263 f4v_muxer_select="mov_muxer"
2264 flac_demuxer_select="flac_parser"
2265 hds_muxer_select="flv_muxer"
2266 hls_muxer_select="mpegts_muxer"
2267 ipod_muxer_select="mov_muxer"
2268 ismv_muxer_select="mov_muxer"
2269 matroska_audio_muxer_select="matroska_muxer"
2270 matroska_demuxer_select="riffdec"
2271 matroska_demuxer_suggest="bzlib lzo zlib"
2272 matroska_muxer_select="riffenc"
2273 mmf_muxer_select="riffenc"
2274 mov_demuxer_select="riffdec"
2275 mov_demuxer_suggest="zlib"
2276 mov_muxer_select="riffenc rtpenc_chain"
2277 mp3_demuxer_select="mpegaudio_parser"
2278 mp4_muxer_select="mov_muxer"
2279 mpegts_muxer_select="adts_muxer latm_muxer"
2280 mpegtsraw_demuxer_select="mpegts_demuxer"
2281 mxf_d10_muxer_select="mxf_muxer"
2282 nut_muxer_select="riffenc"
2283 nuv_demuxer_select="riffdec"
2284 oga_muxer_select="ogg_muxer"
2285 ogg_demuxer_select="dirac_parse"
2286 opus_muxer_select="ogg_muxer"
2287 psp_muxer_select="mov_muxer"
2288 rtp_demuxer_select="sdp_demuxer"
2289 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2290 rtsp_demuxer_select="http_protocol rtpdec"
2291 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2292 sap_demuxer_select="sdp_demuxer"
2293 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2294 sdp_demuxer_select="rtpdec"
2295 smoothstreaming_muxer_select="ismv_muxer"
2296 spdif_muxer_select="aac_parser"
2297 spx_muxer_select="ogg_muxer"
2298 swf_demuxer_suggest="zlib"
2299 tak_demuxer_select="tak_parser"
2300 tg2_muxer_select="mov_muxer"
2301 tgp_muxer_select="mov_muxer"
2302 w64_demuxer_select="wav_demuxer"
2303 wav_demuxer_select="riffdec"
2304 wav_muxer_select="riffenc"
2305 webm_muxer_select="riffenc"
2306 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2307 wtv_demuxer_select="mpegts_demuxer riffdec"
2308 xmv_demuxer_select="riffdec"
2309 xwma_demuxer_select="riffdec"
2312 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2313 alsa_outdev_deps="alsa_asoundlib_h"
2314 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2315 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2316 dv1394_indev_deps="dv1394"
2317 dv1394_indev_select="dv_demuxer"
2318 fbdev_indev_deps="linux_fb_h"
2319 jack_indev_deps="jack_jack_h pthreads"
2320 libcdio_indev_deps="libcdio"
2321 libdc1394_indev_deps="libdc1394"
2322 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2323 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2324 pulse_indev_deps="libpulse"
2325 sndio_indev_deps="sndio_h"
2326 sndio_outdev_deps="sndio_h"
2327 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2328 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2329 vfwcap_indev_extralibs="-lavicap32"
2330 x11grab_indev_deps="x11grab"
2331 x11grab_xcb_indev_deps="libxcb"
2334 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2335 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2336 ffrtmpcrypt_protocol_select="tcp_protocol"
2337 ffrtmphttp_protocol_deps="!librtmp_protocol"
2338 ffrtmphttp_protocol_select="http_protocol"
2339 gopher_protocol_select="network"
2340 http_protocol_select="tcp_protocol"
2341 httpproxy_protocol_select="tcp_protocol"
2342 https_protocol_select="tls_protocol"
2343 icecast_protocol_select="http_protocol"
2344 librtmp_protocol_deps="librtmp"
2345 librtmpe_protocol_deps="librtmp"
2346 librtmps_protocol_deps="librtmp"
2347 librtmpt_protocol_deps="librtmp"
2348 librtmpte_protocol_deps="librtmp"
2349 mmsh_protocol_select="http_protocol"
2350 mmst_protocol_select="network"
2351 rtmp_protocol_deps="!librtmp_protocol"
2352 rtmp_protocol_select="tcp_protocol"
2353 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2354 rtmps_protocol_deps="!librtmp_protocol"
2355 rtmps_protocol_select="tls_protocol"
2356 rtmpt_protocol_select="ffrtmphttp_protocol"
2357 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2358 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2359 rtp_protocol_select="udp_protocol"
2360 sctp_protocol_deps="struct_sctp_event_subscribe"
2361 sctp_protocol_select="network"
2362 srtp_protocol_select="rtp_protocol"
2363 tcp_protocol_select="network"
2364 tls_gnutls_protocol_deps="gnutls"
2365 tls_gnutls_protocol_select="tcp_protocol"
2366 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2367 tls_openssl_protocol_select="tcp_protocol"
2368 tls_protocol_select_any="tls_gnutls_protocol tls_openssl_protocol"
2369 udp_protocol_select="network"
2370 unix_protocol_deps="sys_un_h"
2371 unix_protocol_select="network"
2374 blackframe_filter_deps="gpl"
2375 boxblur_filter_deps="gpl"
2376 bs2b_filter_deps="libbs2b"
2377 cropdetect_filter_deps="gpl"
2378 delogo_filter_deps="gpl"
2379 drawtext_filter_deps="libfreetype"
2380 frei0r_filter_deps="frei0r dlopen"
2381 frei0r_filter_extralibs='$ldl'
2382 frei0r_src_filter_deps="frei0r dlopen"
2383 frei0r_src_filter_extralibs='$ldl'
2384 hqdn3d_filter_deps="gpl"
2385 hwupload_cuda_filter_deps="cuda"
2386 interlace_filter_deps="gpl"
2387 ocv_filter_deps="libopencv"
2388 resample_filter_deps="avresample"
2389 scale_filter_deps="swscale"
2392 avcodec_example_deps="avcodec avutil"
2393 filter_audio_example_deps="avfilter avutil"
2394 metadata_example_deps="avformat avutil"
2395 output_example_deps="avcodec avformat avutil swscale"
2396 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2397 transcode_aac_example_deps="avcodec avformat avresample"
2399 # libraries, in linking order
2400 avcodec_deps="avutil"
2401 avdevice_deps="avformat avcodec avutil"
2402 avfilter_deps="avutil"
2403 avformat_deps="avcodec avutil"
2404 avresample_deps="avutil"
2405 swscale_deps="avutil"
2408 avconv_deps="avcodec avfilter avformat avresample swscale"
2409 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2410 fps_filter null_filter resample_filter scale_filter
2411 setpts_filter trim_filter"
2412 avplay_deps="avcodec avfilter avformat avresample sdl"
2413 avplay_libs='$sdl_libs'
2414 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2415 avprobe_deps="avcodec avformat"
2419 texi2html_deps="doc"
2421 # default parameters
2423 logfile="config.log"
2425 # installation paths
2426 prefix_default="/usr/local"
2427 bindir_default='${prefix}/bin'
2428 datadir_default='${prefix}/share/avconv'
2429 docdir_default='${prefix}/share/doc/libav'
2430 incdir_default='${prefix}/include'
2431 libdir_default='${prefix}/lib'
2432 mandir_default='${prefix}/share/man'
2433 shlibdir_default="$libdir_default"
2438 host_cc_default="gcc"
2443 pkg_config_default=pkg-config
2449 arch_default=$(uname -m)
2454 target_os_default=$(tolower $(uname -s))
2455 host_os=$target_os_default
2457 # configurable options
2461 enable faan faandct faanidct
2462 enable optimizations
2463 enable safe_bitstream_reader
2465 enable swscale_alpha
2466 enable valgrind_backtrace
2468 # By default, enable only those hwaccels that have no external dependencies.
2469 enable d3d11va dxva2 vda vdpau
2472 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2475 FULLNAME='$(NAME)$(BUILDSUF)'
2476 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2479 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2480 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2481 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2482 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2483 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2484 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2507 host_cflags_filter=echo
2508 host_ldflags_filter=echo
2510 target_path='$(CURDIR)'
2512 # since the object filename is not given with the -MM flag, the compiler
2513 # is only able to print the basename, and we must add the path ourselves
2514 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2518 if test -f configure; then
2521 source_path=$(cd $(dirname "$0"); pwd)
2522 echo "$source_path" | grep -q '[[:blank:]]' &&
2523 die "Out of tree builds are impossible with whitespace in source path."
2524 test -e "$source_path/config.h" &&
2525 die "Out of tree builds are impossible with config.h in source dir."
2532 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2538 file=$source_path/$3
2539 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2542 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2543 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2544 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2545 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2546 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2547 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2548 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2549 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2550 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2551 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2552 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2568 enable $ARCH_EXT_LIST
2571 echo "Unknown option \"$1\"."
2572 echo "See $0 --help for available options."
2577 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2583 echo $* | sed s/$suffix//g | print_3_columns
2595 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2596 echo "prob ${prob:-0.5}"
2604 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2605 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2614 --extra-ldexeflags=*)
2615 add_ldexeflags $optval
2618 add_extralibs $optval
2621 disable $INDEV_LIST $OUTDEV_LIST
2624 debuglevel="$optval"
2627 disable $PROGRAM_LIST
2629 --disable-everything)
2630 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2631 enable_deep_force $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2634 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2635 disable $LIBRARY_LIST $PROGRAM_LIST doc
2637 --enable-random|--disable-random)
2638 action=${opt%%-random}
2639 do_random ${action#--} $COMPONENT_LIST
2641 --enable-random=*|--disable-random=*)
2642 action=${opt%%-random=*}
2643 do_random ${action#--} $optval
2645 --enable-*=*|--disable-*=*)
2646 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2647 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2648 eval list=\$$(toupper $thing)_LIST
2649 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2650 test $action = enable && action="request"
2651 $action $(filter "$name" $list)
2653 --enable-avserver|--disable-avserver*)
2654 warn "avserver has been removed, the ${opt} option is only"\
2655 "provided for compatibility and will be removed in the future"
2657 --enable-?*|--disable-?*)
2658 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2659 if is_in $option $COMPONENT_LIST; then
2660 test $action = enable && action="enable_deep_force"
2661 eval $action \$$(toupper ${option%s})_LIST
2662 elif is_in $option $CMDLINE_SELECT; then
2663 test $action = enable && action="request"
2670 NAME="${opt#--list-}"
2671 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2673 eval show_list $NAME \$$(toupper $NAME)_LIST
2675 --help|-h) show_help
2678 optname="${opt%%=*}"
2679 optname="${optname#--}"
2680 optname=$(echo "$optname" | sed 's/-/_/g')
2681 if is_in $optname $CMDLINE_SET; then
2682 eval $optname='$optval'
2683 elif is_in $optname $CMDLINE_APPEND; then
2684 append $optname "$optval"
2696 disabled logging && logfile=/dev/null
2698 # Enable the default components if not disabled explicitly
2700 enable_weak $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2702 # Disable all the library-specific components if the library itself
2703 # is disabled, see AVCODEC_LIST and following _LIST variables.
2705 disable_components(){
2706 disabled ${1} && disable_weak $(
2707 eval components="\$$(toupper ${1})_COMPONENTS"
2708 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2712 map 'disable_components $v' $LIBRARY_LIST
2714 # Mark components that had not been enabled/disabled explicitly
2717 for n in $COMPONENT_LIST; do
2718 v=$(toupper ${n%s})_LIST
2719 eval enable_weak \$$v
2720 eval ${n}_if_any="\$$v"
2723 # Make so that disabled libraries are enabled if a component
2724 # of them is requested
2726 for n in $LIBRARY_LIST; do
2727 v=$(toupper ${n})_COMPONENTS
2728 eval ${n}_if_any="\$$v"
2731 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2734 case "$toolchain" in
2736 cc_default="${toolchain%-asan}"
2737 add_cflags -fsanitize=address
2738 add_ldflags -fsanitize=address
2741 cc_default="${toolchain%-tsan}"
2742 add_cflags -fsanitize=thread -pie
2743 add_ldflags -fsanitize=thread -pie
2744 case "$toolchain" in
2752 cc_default="${toolchain%-usan}"
2753 add_cflags -fsanitize=undefined
2754 add_ldflags -fsanitize=undefined
2755 case "$toolchain" in
2762 target_exec_default="valgrind"
2763 case "$toolchain" in
2765 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2768 target_exec_args="--track-origins=yes --leak-check=full"
2773 # Check whether the current MSVC version needs the C99 converter.
2774 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2775 # support enough of C99 to build libav. Default to the new
2776 # behaviour if the regexp was unable to match anything, since this
2777 # successfully parses the version number of existing supported
2778 # versions that require the converter (MSVC 2010 and 2012).
2779 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2780 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2783 cc_default="c99wrap cl"
2785 ld_default="$source_path/compat/windows/mslink"
2786 nm_default="dumpbin -symbols"
2793 target_os_default="win32"
2794 # Use a relative path for TMPDIR. This makes sure all the
2795 # ffconf temp files are written with a relative path, avoiding
2796 # issues with msys/win32 path conversion for MSVC parameters
2797 # such as -Fo<file> or -out:<file>.
2803 nm_default="dumpbin -symbols"
2805 target_os_default="win32"
2809 add_cflags -fprofile-arcs -ftest-coverage
2810 add_ldflags -fprofile-arcs -ftest-coverage
2813 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2814 add_cflags -fno-strict-overflow -fstack-protector-all
2815 add_ldflags -Wl,-z,relro -Wl,-z,now
2818 die "Unknown toolchain $toolchain"
2822 test -n "$cross_prefix" && enable cross_compile
2824 if enabled cross_compile; then
2825 test -n "$arch" && test -n "$target_os" ||
2826 die "Must specify target arch and OS when cross-compiling"
2829 ar_default="${cross_prefix}${ar_default}"
2830 cc_default="${cross_prefix}${cc_default}"
2831 occ_default="${cross_prefix}${occ_default}"
2832 nm_default="${cross_prefix}${nm_default}"
2833 pkg_config_default="${cross_prefix}${pkg_config_default}"
2834 ranlib="${cross_prefix}${ranlib}"
2835 strip="${cross_prefix}${strip}"
2837 sysinclude_default="${sysroot}/usr/include"
2839 set_default arch cc pkg_config sysinclude target_exec target_os
2840 enabled cross_compile || host_cc_default=$cc
2843 if ! $pkg_config --version >/dev/null 2>&1; then
2844 warn "$pkg_config not found, library detection may fail."
2850 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2854 EXESUF=$(exesuf $target_os)
2855 HOSTEXESUF=$(exesuf $host_os)
2857 # set temporary file name
2858 : ${TMPDIR:=$TEMPDIR}
2862 if ! check_cmd mktemp -u XXXXXX; then
2863 # simple replacement for missing mktemp
2864 # NOT SAFE FOR GENERAL USE
2866 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2871 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2872 (set -C; exec > $tmp) 2>/dev/null ||
2873 die "Unable to create temporary file in $TMPDIR."
2874 append TMPFILES $tmp
2878 trap 'rm -f -- $TMPFILES' EXIT
2882 tmpfile TMPE $EXESUF
2893 # make sure we can execute files in $TMPDIR
2894 cat > $TMPSH 2>> $logfile <<EOF
2897 chmod +x $TMPSH >> $logfile 2>&1
2898 if ! $TMPSH >> $logfile 2>&1; then
2900 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2901 variable to another directory and make sure that it is not mounted noexec.
2903 die "Sanity test failed."
2909 # Filter out MSVC cl.exe options from cflags that shouldn't
2910 # be passed to gas-preprocessor
2920 -std=c99) echo -c99 ;;
2921 -mcpu=*) echo -arch ${flag#*=} ;;
2922 -mieee) echo -ieee ;;
2923 -O*|-fast) echo $flag ;;
2924 -fno-math-errno) echo -assume nomath_errno ;;
2926 -Wall) echo -msg_enable level2 ;;
2927 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2928 -Wl,*) echo $flag ;;
2938 -Wno-switch) echo -Wno-switch-enum ;;
2939 -Wno-format-zero-length) ;;
2940 -Wdisabled-optimization) ;;
2941 -Wno-pointer-sign) echo -Wno-other ;;
2947 msvc_common_flags(){
2950 # In addition to specifying certain flags under the compiler
2951 # specific filters, they must be specified here as well or else the
2952 # generic catch all at the bottom will print the original flag.
2956 -fomit-frame-pointer) ;;
2960 -fno-signed-zeros) ;;
2964 -lz) echo zlib.lib ;;
2965 -lavifil32) echo vfw32.lib ;;
2966 -lavicap32) echo vfw32.lib user32.lib ;;
2967 -lx264) echo libx264.lib ;;
2968 -l*) echo ${flag#-l}.lib ;;
2969 -L*) echo -libpath:${flag#-L} ;;
2976 msvc_common_flags "$@"
2979 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2980 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2981 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2982 -wd4273 -wd4554 -wd4701 ;;
2988 msvc_common_flags "$@"
2991 # Despite what Intel's documentation says -Wall, which is supported
2992 # on Windows, does enable remarks so disable them here.
2993 -Wall) echo $flag -Qdiag-disable:remark ;;
2994 -std=c99) echo -Qstd=c99 ;;
3002 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3003 -fomit-frame-pointer) echo -Mnoframe ;;
3014 case "${flag#*=}" in
3015 native) echo -xtarget=native ;;
3016 v9|niagara) echo -xarch=sparc ;;
3017 ultrasparc) echo -xarch=sparcvis ;;
3018 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3019 i586|pentium) echo -xchip=pentium ;;
3020 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3021 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3022 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3023 pentium4*) echo -xtarget=pentium4 ;;
3024 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3025 *-sse3) echo -xarch=sse3 ;;
3026 core2) echo -xarch=ssse3 -xchip=core2 ;;
3027 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3028 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3029 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3030 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3031 k8|opteron|athlon64|athlon-fx)
3032 echo -xarch=sse2a ;;
3033 athlon*) echo -xarch=pentium_proa ;;
3036 -std=c99) echo -xc99 ;;
3037 -fomit-frame-pointer) echo -xregs=frameptr ;;
3038 -fPIC) echo -KPIC -xcode=pic32 ;;
3039 -W*,*) echo $flag ;;
3040 -f*-*|-W*|-mimpure-text) ;;
3051 case "${flag#*=}" in
3052 armv7-a|cortex-a*) echo -mv=7a8 ;;
3053 armv7-r|cortex-r*) echo -mv=7r4 ;;
3054 armv7-m|cortex-m*) echo -mv=7m3 ;;
3055 armv6*|arm11*) echo -mv=6 ;;
3056 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3058 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3061 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3062 -mfpu=vfp) echo --float_support=vfpv2 ;;
3063 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3064 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3065 -msoft-float) echo --float_support=vfplib ;;
3066 -O[0-3]|-mf=*) echo $flag ;;
3068 -pds=*) echo $flag ;;
3069 -D*|-I*) echo $flag ;;
3070 --gcc|--abi=*) echo $flag ;;
3080 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3081 unset _ld_o _ldflags _ld_lib _ld_path
3082 unset _depflags _DEPCMD _DEPFLAGS
3085 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3087 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3088 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3089 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3092 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3094 gcc_version=$($_cc --version | head -n1)
3095 gcc_basever=$($_cc -dumpversion)
3096 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3097 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3098 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3099 if ! $_cc -dumpversion | grep -q '^2\.'; then
3100 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3104 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3106 _ident=$($_cc --version | head -n1)
3111 elif $_cc -v 2>&1 | grep -q xlc; then
3113 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3115 _cflags_size='-O5 -qcompact'
3116 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3118 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3120 _cflags_speed='-fast'
3122 _flags_filter=ccc_flags
3123 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3124 test -d "$sysroot" || die "No valid sysroot specified."
3126 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3127 armcc_conf="$PWD/armcc.conf"
3128 $_cc --arm_linux_configure \
3129 --arm_linux_config_file="$armcc_conf" \
3130 --configure_sysroot="$sysroot" \
3131 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3132 die "Error creating armcc configuration file."
3133 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3134 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3135 as_default="${cross_prefix}gcc"
3139 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3141 _ident=$($_cc -version | head -n1 | tr -s ' ')
3142 _flags='--gcc --abi=eabi -me'
3145 _depflags='-ppa -ppd=$(@:.o=.d)'
3146 _cflags_speed='-O3 -mf=5'
3147 _cflags_size='-O3 -mf=2'
3148 _flags_filter=tms470_flags
3149 elif $_cc -v 2>&1 | grep -q clang; then
3151 _ident=$($_cc --version 2>/dev/null | head -n1)
3152 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3155 elif $_cc -V 2>&1 | grep -q Sun; then
3157 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3158 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3159 _DEPFLAGS='-xM1 -xc99'
3162 _cflags_size='-O5 -xspace'
3163 _flags_filter=suncc_flags
3164 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3166 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3167 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3170 _flags_filter='filter_out -Wdisabled-optimization'
3171 elif $_cc -v 2>&1 | grep -q Open64; then
3173 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3174 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3177 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3178 elif $_cc -V 2>&1 | grep -q Portland; then
3180 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3181 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3182 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3183 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3185 _flags_filter=pgi_flags
3186 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3188 _ident=$($_cc | head -n1)
3189 # 4509: "This form of conditional instruction is deprecated"
3190 _flags="-nologo -ignore 4509"
3191 _flags_filter=armasm_flags
3192 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3194 _ident=$($_cc 2>&1 | head -n1)
3195 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3196 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3199 if $_cc -nologo- 2>&1 | grep -q Linker; then
3206 _flags_filter=msvc_flags
3208 _ld_path='-libpath:'
3210 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3211 elif $_cc 2>&1 | grep -q Intel; then
3213 _ident=$($_cc 2>&1 | head -n1)
3214 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3215 # Not only is O3 broken on 13.x+ but it is slower on all previous
3216 # versions (tested) as well.
3218 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3219 if $_cc 2>&1 | grep -q Linker; then
3226 _flags_filter=icl_flags
3228 _ld_path='-libpath:'
3229 # -Qdiag-error to make icl error when seeing certain unknown arguments
3230 _flags='-nologo -Qdiag-error:4044,10157'
3231 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3232 # with MSVC which enables it by default.
3233 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3234 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3236 _ident=$($_cc --version | head -n1)
3240 _flags_filter=cparser_flags
3243 eval ${pfx}_type=\$_type
3244 eval ${pfx}_ident=\$_ident
3248 eval ${1}_C=\${_cc_c-\${${1}_C}}
3249 eval ${1}_E=\${_cc_e-\${${1}_E}}
3250 eval ${1}_O=\${_cc_o-\${${1}_O}}
3252 if [ -n "$_depflags" ]; then
3253 eval ${1}_DEPFLAGS=\$_depflags
3255 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3256 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3257 eval DEP${1}FLAGS=\$_flags
3262 cflags_filter=$_flags_filter
3263 cflags_speed=$_cflags_speed
3264 cflags_size=$_cflags_size
3265 cflags_noopt=$_cflags_noopt
3266 add_cflags $_flags $_cflags
3267 cc_ldflags=$_ldflags
3270 probe_cc hostcc "$host_cc"
3271 host_cflags_filter=$_flags_filter
3272 add_host_cflags $_flags $_cflags
3275 test -n "$cc_type" && enable $cc_type ||
3276 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3278 : ${as_default:=$cc}
3279 : ${objcc_default:=$cc}
3280 : ${dep_cc_default:=$cc}
3281 : ${ld_default:=$cc}
3282 : ${host_ld_default:=$host_cc}
3283 set_default ar as objcc dep_cc ld host_ld
3286 asflags_filter=$_flags_filter
3287 add_asflags $_flags $_cflags
3290 probe_cc objcc "$objcc"
3291 objcflags_filter=$_flags_filter
3292 add_objcflags $_flags $_cflags
3296 ldflags_filter=$_flags_filter
3297 add_ldflags $_flags $_ldflags
3298 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3300 LD_LIB=${_ld_lib-$LD_LIB}
3301 LD_PATH=${_ld_path-$LD_PATH}
3303 probe_cc hostld "$host_ld"
3304 host_ldflags_filter=$_flags_filter
3305 add_host_ldflags $_flags $_ldflags
3306 HOSTLD_O=${_ld_o-$HOSTLD_O}
3308 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3309 probe_cc depcc "$dep_cc"
3310 CCDEP=${_DEPCMD:-$DEPCMD}
3311 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3315 if $ar 2>&1 | grep -q Microsoft; then
3318 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3321 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3322 arflags='-Xany -r -c'
3329 add_cflags $extra_cflags
3330 add_objcflags $extra_objcflags
3331 add_asflags $extra_cflags
3333 if test -n "$sysroot"; then
3336 add_cppflags --sysroot="$sysroot"
3337 add_ldflags --sysroot="$sysroot"
3340 add_cppflags -I"$sysinclude"
3341 add_ldflags --sysroot="$sysroot"
3346 if test "$cpu" = host; then
3347 enabled cross_compile &&
3348 die "--cpu=host makes no sense when cross-compiling."
3353 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3355 s/.*$1=\\([^ ]*\\).*/\\1/
3360 cpu=$(check_native -march || check_native -mcpu)
3364 test "${cpu:-host}" = host &&
3365 die "--cpu=host not supported with compiler $cc"
3368 # Deal with common $arch aliases
3392 "Power Macintosh"|ppc*|powerpc*)
3407 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3412 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3415 # Add processor-specific flags
3416 if enabled aarch64; then
3420 cpuflags="-march=$cpu"
3423 cpuflags="-mcpu=$cpu"
3427 elif enabled alpha; then
3429 cpuflags="-mcpu=$cpu"
3431 elif enabled arm; then
3434 check_cpp_condition stddef.h \
3435 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3440 if check_arm_arch 4; then echo armv4;
3441 elif check_arm_arch 4T; then echo armv4t;
3442 elif check_arm_arch 5; then echo armv5;
3443 elif check_arm_arch 5E; then echo armv5e;
3444 elif check_arm_arch 5T; then echo armv5t;
3445 elif check_arm_arch 5TE; then echo armv5te;
3446 elif check_arm_arch 5TEJ; then echo armv5te;
3447 elif check_arm_arch 6; then echo armv6;
3448 elif check_arm_arch 6J; then echo armv6j;
3449 elif check_arm_arch 6K; then echo armv6k;
3450 elif check_arm_arch 6Z; then echo armv6z;
3451 elif check_arm_arch 6ZK; then echo armv6zk;
3452 elif check_arm_arch 6T2; then echo armv6t2;
3453 elif check_arm_arch 7; then echo armv7;
3454 elif check_arm_arch 7A 7_A; then echo armv7-a;
3455 elif check_arm_arch 7S; then echo armv7-a;
3456 elif check_arm_arch 7R 7_R; then echo armv7-r;
3457 elif check_arm_arch 7M 7_M; then echo armv7-m;
3458 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3459 elif check_arm_arch 8A 8_A; then echo armv8-a;
3463 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3467 cpuflags="-march=$cpu"
3468 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3471 cpuflags="-mcpu=$cpu"
3473 cortex-a*) subarch=armv7a ;;
3474 cortex-r*) subarch=armv7r ;;
3475 cortex-m*) enable thumb; subarch=armv7m ;;
3476 arm11*) subarch=armv6 ;;
3477 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3478 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3479 *) subarch=$(probe_arm_arch) ;;
3485 armv5t*) enable fast_clz ;;
3486 armv[6-8]*) enable fast_clz fast_unaligned ;;
3489 elif enabled avr32; then
3494 cpuflags="-mpart=$cpu"
3498 cpuflags="-march=$cpu"
3502 cpuflags="-mcpu=$cpu"
3506 cpuflags="-march=$cpu"
3510 elif enabled bfin; then
3512 cpuflags="-mcpu=$cpu"
3514 elif enabled mips; then
3516 cpuflags="-march=$cpu"
3518 elif enabled ppc; then
3522 case $(tolower $cpu) in
3523 601|ppc601|powerpc601)
3524 cpuflags="-mcpu=601"
3527 603*|ppc603*|powerpc603*)
3528 cpuflags="-mcpu=603"
3531 604*|ppc604*|powerpc604*)
3532 cpuflags="-mcpu=604"
3535 g3|75*|ppc75*|powerpc75*)
3536 cpuflags="-mcpu=750"
3539 g4|745*|ppc745*|powerpc745*)
3540 cpuflags="-mcpu=7450"
3543 74*|ppc74*|powerpc74*)
3544 cpuflags="-mcpu=7400"
3547 g5|970|ppc970|powerpc970)
3548 cpuflags="-mcpu=970"
3552 cpuflags="-mcpu=$cpu"
3556 cpuflags="-mcpu=$cpu"
3560 cpuflags="-mcpu=cell"
3565 cpuflags="-mcpu=e500mc"
3569 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3574 cpuflags="-mcpu=8540 -mhard-float"
3580 elif enabled sparc; then
3583 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3584 cpuflags="-mcpu=$cpu"
3586 ultrasparc*|niagara[234])
3587 cpuflags="-mcpu=$cpu"
3591 elif enabled x86; then
3595 cpuflags="-march=$cpu"
3599 # targets that do NOT support nopl and conditional mov (cmov)
3600 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3601 cpuflags="-march=$cpu"
3604 # targets that do support nopl and conditional mov (cmov)
3605 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3606 cpuflags="-march=$cpu"
3610 # targets that do support conditional mov but on which it's slow
3611 pentium4|pentium4m|prescott|nocona)
3612 cpuflags="-march=$cpu"
3620 if [ "$cpu" != generic ]; then
3621 add_cflags $cpuflags
3622 add_asflags $cpuflags
3623 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3626 # compiler sanity check
3628 int main(void){ return 0; }
3630 if test "$?" != 0; then
3631 echo "$cc is unable to create an executable file."
3632 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3633 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3634 echo "Only do this if you know what cross compiling means."
3636 die "C compiler test failed."
3639 add_cppflags -D_ISOC99_SOURCE
3640 check_cflags -std=c99
3641 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3644 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3648 add_host_cppflags -D_ISOC99_SOURCE
3649 check_host_cflags -std=c99
3650 check_host_cflags -Wall
3651 check_host_cflags -O3
3657 check_code cc "" "int test[2*($expr) - 1]" &&
3658 subarch=$arch64 || subarch=$arch32
3666 check_64bit mips mips64 '_MIPS_SIM > 1'
3670 check_64bit parisc parisc64 'sizeof(void *) > 4'
3674 check_64bit ppc ppc64 'sizeof(void *) > 4'
3678 check_64bit s390 s390x 'sizeof(void *) > 4'
3682 check_64bit sparc sparc64 'sizeof(void *) > 4'
3686 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3687 if test "$subarch" = "x86_64"; then
3694 enabled spic && enable_weak pic
3700 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3701 enabled shared && add_ldflags -Wl,-brtl
3705 enable section_data_rel_ro
3706 SLIB_INSTALL_NAME='$(SLIBNAME)'
3708 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3711 prefix_default="/boot/common"
3712 network_extralibs="-lnetwork"
3716 SHFLAGS='-shared -Wl,-h,$$(@F)'
3717 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3718 network_extralibs="-lsocket -lnsl"
3719 # When using suncc to build, the Solaris linker will mark
3720 # an executable with each instruction set encountered by
3721 # the Solaris assembler. As our libraries contain their own
3722 # guards for processor-specific code, instead suppress
3723 # generation of the HWCAPS ELF section on Solaris x86 only.
3724 enabled_all suncc x86 &&
3725 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3726 add_ldflags -Wl,-M,mapfile
3727 nm_default='nm -P -g'
3728 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3732 oss_indev_extralibs="-lossaudio"
3733 oss_outdev_extralibs="-lossaudio"
3738 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3740 oss_indev_extralibs="-lossaudio"
3741 oss_outdev_extralibs="-lossaudio"
3749 add_extralibs -lpoll -lgnugetopt
3752 enabled ppc && add_asflags -force_cpusubtype_ALL
3753 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3754 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3755 add_ldflags -Wl,-dynamic,-search_paths_first
3757 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3758 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3760 enabled x86_64 && objformat="macho64"
3761 enabled_any pic shared ||
3762 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3765 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3768 if test $target_os = "mingw32ce"; then
3774 if enabled x86_64; then
3775 LIBTARGET="i386:x86-64"
3776 elif enabled arm; then
3779 check_ldflags -Wl,--nxcompat
3780 check_ldflags -Wl,--dynamicbase
3781 shlibdir_default="$bindir_default"
3784 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3785 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3786 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3787 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3789 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3790 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3791 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3793 dlltool="${cross_prefix}dlltool"
3799 if enabled shared; then
3800 # Link to the import library instead of the normal static library
3803 # Cannot build both shared and static libs with MSVC or icl.
3806 shlibdir_default="$bindir_default"
3809 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3810 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3811 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3812 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3814 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3815 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3816 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3823 shlibdir_default="$bindir_default"
3826 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3827 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3828 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3830 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3831 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3835 *-dos|freedos|opendos)
3836 network_extralibs="-lsocket"
3839 add_cppflags -U__STRICT_ANSI__
3843 enable section_data_rel_ro
3847 ranlib="echo ignoring ranlib"
3852 add_cppflags -D_GNU_SOURCE
3853 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3854 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3858 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3859 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3860 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3861 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3862 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3863 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3864 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3865 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3866 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3867 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3871 add_cppflags -D_BSD_SOURCE
3876 add_cppflags -D_QNX_SOURCE
3877 network_extralibs="-lsocket"
3882 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3883 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3884 add_ldflags -Wl,--target1-abs,--no-undefined \
3885 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3886 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3887 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3888 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3889 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3892 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3897 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3898 -D_REENTRANT_SOURCE \
3899 -D_RESEARCH_SOURCE \
3902 add_compat strtod.o strtod=avpriv_strtod
3903 network_extralibs='-lbsd'
3904 exeobjs=compat/plan9/main.o
3910 die "Unknown OS '$target_os'."
3914 # determine libc flavour
3919 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3920 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3921 eval ${pfx}libc_type=uclibc
3922 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3923 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3924 eval ${pfx}libc_type=glibc
3925 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3926 # MinGW headers can be installed on Cygwin, so check for newlib first.
3927 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3928 eval ${pfx}libc_type=newlib
3929 add_${pfx}cppflags -U__STRICT_ANSI__
3930 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3931 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3932 eval ${pfx}libc_type=mingw64
3933 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3934 eval test \$${pfx_no_}cc_type = "gcc" &&
3935 add_${pfx}cppflags -D__printf__=__gnu_printf__
3936 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3937 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3938 eval ${pfx}libc_type=mingw32
3939 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3940 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3941 die "ERROR: MinGW32 runtime version must be >= 3.15."
3942 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3943 eval test \$${pfx_no_}cc_type = "gcc" &&
3944 add_${pfx}cppflags -D__printf__=__gnu_printf__
3945 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3946 eval ${pfx}libc_type=msvcrt
3947 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3948 if [ "$pfx" = host_ ]; then
3949 add_host_cppflags -Dsnprintf=_snprintf
3951 add_compat strtod.o strtod=avpriv_strtod
3952 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3953 _snprintf=avpriv_snprintf \
3954 vsnprintf=avpriv_vsnprintf
3957 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3958 # 0x601 by default unless something else is set by the user.
3959 # This can easily lead to us detecting functions only present
3960 # in such new versions and producing binaries requiring windows 7.0.
3961 # Therefore explicitly set the default to XP unless the user has
3962 # set something else on the command line.
3963 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3964 # family. For these cases, configure is free to use any functions
3965 # found in the SDK headers by default. (Alternatively, we could force
3966 # _WIN32_WINNT to 0x0602 in that case.)
3967 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3968 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3969 #ifdef WINAPI_FAMILY
3970 #include <winapifamily.h>
3971 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3976 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3977 eval ${pfx}libc_type=klibc
3978 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3979 eval ${pfx}libc_type=bionic
3980 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3981 eval ${pfx}libc_type=solaris
3982 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3984 eval ${pfx}libc_type=default
3985 add_${pfx}cppflags -D_DEFAULT_SOURCE
3990 test -n "$libc_type" && enable libc_$libc_type
3992 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3996 add_compat strtod.o strtod=avpriv_strtod
4000 # hacks for compiler/libc/os combinations
4002 if enabled_all tms470 libc_glibc; then
4003 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4004 add_cppflags -D__USER_LABEL_PREFIX__=
4005 add_cppflags -D__builtin_memset=memset
4006 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4007 add_cflags -pds=48 # incompatible redefinition of macro
4010 if enabled_all ccc libc_glibc; then
4011 add_ldflags -Wl,-z,now # calls to libots crash without this
4014 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4015 add_cppflags '-I\$(SRC_PATH)/compat/float'
4018 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4021 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4023 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4025 set_default $PATHS_LIST
4028 # we need to build at least one lib type
4029 if ! enabled_any static shared; then
4031 At least one library type must be built.
4032 Specify --enable-static to build the static libraries or --enable-shared to
4033 build the shared libraries as well. To only build the shared libraries specify
4034 --disable-static in addition to --enable-shared.
4039 die_license_disabled() {
4040 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4043 die_license_disabled gpl libcdio
4044 die_license_disabled gpl libx264
4045 die_license_disabled gpl libx265
4046 die_license_disabled gpl libxavs
4047 die_license_disabled gpl libxvid
4048 die_license_disabled gpl x11grab
4050 die_license_disabled nonfree cuda
4051 die_license_disabled nonfree libfaac
4052 die_license_disabled nonfree libfdk_aac
4053 die_license_disabled nonfree nvenc
4054 die_license_disabled nonfree openssl
4056 die_license_disabled version3 libopencore_amrnb
4057 die_license_disabled version3 libopencore_amrwb
4058 die_license_disabled version3 libvo_aacenc
4059 die_license_disabled version3 libvo_amrwbenc
4061 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4063 disabled optimizations || check_cflags -fomit-frame-pointer
4066 disabled pic && return
4069 case "$target_os" in
4079 enabled pic && enable_weak_pic
4081 check_cc <<EOF || die "Symbol mangling check failed."
4084 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4085 extern_prefix=${sym%%ff_extern*}
4087 check_cc <<EOF && enable_weak inline_asm
4088 void foo(void) { __asm__ volatile ("" ::); }
4092 for restrict_keyword in restrict __restrict__ __restrict; do
4093 check_cc <<EOF && _restrict=$restrict_keyword && break
4094 void foo(char * $restrict_keyword p);
4098 check_cc <<EOF && enable pragma_deprecated
4099 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4102 check_cc <<EOF && enable attribute_packed
4103 struct { int x; } __attribute__((packed)) x;
4106 check_cc <<EOF && enable attribute_may_alias
4107 union { int x; } __attribute__((may_alias)) x;
4110 check_cc <<EOF || die "endian test failed"
4111 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4113 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4116 log "check_gas using '$as' as AS"
4117 # :vararg is used on aarch64, arm and ppc altivec
4118 check_as <<EOF || return 1
4119 .macro m n, y:vararg=0
4124 # .altmacro is only used in arm asm
4125 ! enabled arm || check_as <<EOF || return 1
4132 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4134 enabled_any arm aarch64 && nogas=die
4135 enabled_all ppc altivec && nogas=warn
4139 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4140 gcc) gaspp_as_type=gas ;;
4141 *) gaspp_as_type=$as_type ;;
4144 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4146 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4147 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4149 if ! check_gas ; then
4152 $nogas "GNU assembler not found, install/update gas-preprocessor"
4155 check_as <<EOF && enable as_func
4161 check_inline_asm inline_asm_labels '"1:\n"'
4163 if enabled aarch64; then
4164 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4165 # internal assembler in clang 3.3 does not support this instruction
4166 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4167 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4169 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4171 elif enabled alpha; then
4175 elif enabled arm; then
4177 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4178 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4179 enabled thumb && check_cflags -mthumb || check_cflags -marm
4181 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4183 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4185 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4186 case "${cross_prefix:-$cc}" in
4187 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4188 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4189 __asm__ (".eabi_attribute 28, 1");
4190 int main(void) { return 0; }
4193 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4196 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4197 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4198 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4199 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4200 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4201 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4203 [ $target_os = linux ] || [ $target_os = android ] ||
4204 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4207 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4209 check_as <<EOF && enable as_dn_directive
4214 # llvm's integrated assembler supports .object_arch from llvm 3.5
4215 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4219 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4221 elif enabled mips; then
4223 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4225 # make sure that only an instruction set is enabled
4226 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4228 if enabled mips64; then
4229 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4230 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4231 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4233 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4234 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4235 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4238 elif enabled parisc; then
4240 if enabled gcc; then
4241 case $($cc -dumpversion) in
4242 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4246 elif enabled ppc; then
4248 enable local_aligned_8 local_aligned_16
4250 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4251 check_inline_asm ibm_asm '"add 0, 0, 0"'
4252 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4253 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4255 # AltiVec flags: The FSF version of GCC differs from the Apple version
4256 if enabled altivec; then
4257 check_cflags -maltivec -mabi=altivec &&
4258 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4259 check_cflags -faltivec
4261 # check if our compiler supports Motorola AltiVec C API
4262 check_cc <<EOF || disable altivec
4265 vector signed int v1 = (vector signed int) { 0 };
4266 vector signed int v2 = (vector signed int) { 1 };
4267 v1 = vec_add(v1, v2);
4272 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4275 if enabled vsx; then
4276 check_cflags -mvsx &&
4277 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4280 if enabled power8; then
4281 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4284 elif enabled x86; then
4286 check_builtin rdtsc intrin.h "__rdtsc()"
4287 check_builtin mm_empty mmintrin.h "_mm_empty()"
4289 enable local_aligned_8 local_aligned_16
4291 # check whether EBP is available on x86
4292 # As 'i' is stored on the stack, this program will crash
4293 # if the base pointer is used to access it because the
4294 # base pointer is cleared in the inline assembly code.
4295 check_exec_crash <<EOF && enable ebp_available
4297 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4301 # check whether EBX is available on x86
4302 check_inline_asm ebx_available '""::"b"(0)' &&
4303 check_inline_asm ebx_available '"":::"%ebx"'
4305 # check whether xmm clobbers are supported
4306 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4308 # check whether binutils is new enough to compile SSSE3/MMXEXT
4309 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4310 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4312 if ! disabled_any asm mmx yasm; then
4313 if check_cmd $yasmexe --version; then
4314 enabled x86_64 && yasm_extra="-m amd64"
4315 yasm_debug="-g dwarf2"
4316 elif check_cmd nasm -v; then
4318 yasm_debug="-g -F dwarf"
4319 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4322 YASMFLAGS="-f $objformat $yasm_extra"
4323 enabled pic && append YASMFLAGS "-DPIC"
4324 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4325 case "$objformat" in
4326 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4329 check_yasm "movbe ecx, [5]" && enable yasm ||
4330 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4331 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4332 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4333 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4334 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4335 check_yasm "CPU amdnop" || disable cpunop
4339 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4346 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4348 check_ldflags -Wl,--as-needed
4350 if check_func dlopen; then
4352 elif check_func dlopen -ldl; then
4356 if ! disabled network; then
4357 check_func getaddrinfo $network_extralibs
4358 check_func inet_aton $network_extralibs
4360 check_type netdb.h "struct addrinfo"
4361 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4362 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4363 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4364 check_type poll.h "struct pollfd"
4365 check_type netinet/sctp.h "struct sctp_event_subscribe"
4366 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4367 check_type netinet/in.h "struct sockaddr_in6"
4368 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4369 check_type "sys/types.h sys/socket.h" socklen_t
4371 # Prefer arpa/inet.h over winsock2
4372 if check_header arpa/inet.h ; then
4373 check_func closesocket
4374 elif check_header winsock2.h ; then
4375 check_func_headers winsock2.h closesocket -lws2 &&
4376 network_extralibs="-lws2" ||
4377 { check_func_headers winsock2.h closesocket -lws2_32 &&
4378 network_extralibs="-lws2_32"; } || disable winsock2_h network
4379 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4381 check_type ws2tcpip.h socklen_t
4382 check_type ws2tcpip.h "struct addrinfo"
4383 check_type ws2tcpip.h "struct group_source_req"
4384 check_type ws2tcpip.h "struct ip_mreq_source"
4385 check_type ws2tcpip.h "struct ipv6_mreq"
4386 check_type winsock2.h "struct pollfd"
4387 check_struct winsock2.h "struct sockaddr" sa_len
4388 check_type ws2tcpip.h "struct sockaddr_in6"
4389 check_type ws2tcpip.h "struct sockaddr_storage"
4395 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4396 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4397 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4398 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4400 case "$custom_allocator" in
4402 # jemalloc by default does not use a prefix
4403 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4406 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4411 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4412 check_func ${malloc_prefix}memalign && enable memalign
4413 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4415 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4416 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4420 check_func gethrtime
4422 check_func getrusage
4423 check_func gettimeofday
4426 check_func localtime_r
4427 check_func mach_absolute_time
4431 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4432 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4433 check_func sched_getaffinity
4434 check_func setrlimit
4435 check_func strerror_r
4440 check_func_headers io.h setmode
4441 check_func_headers stdlib.h getenv
4443 check_func_headers windows.h CoTaskMemFree -lole32
4444 check_func_headers windows.h GetProcessAffinityMask
4445 check_func_headers windows.h GetProcessTimes
4446 check_func_headers windows.h GetSystemTimeAsFileTime
4447 check_func_headers windows.h LoadLibrary
4448 check_func_headers windows.h MapViewOfFile
4449 check_func_headers windows.h SetConsoleTextAttribute
4450 check_func_headers windows.h Sleep
4451 check_func_headers windows.h VirtualAlloc
4452 check_struct windows.h "CONDITION_VARIABLE" Ptr
4454 check_header direct.h
4455 check_header dlfcn.h
4456 check_header d3d11.h
4458 check_header dxva2api.h
4460 check_header mach/mach_time.h
4461 check_header malloc.h
4463 check_header sys/mman.h
4464 check_header sys/param.h
4465 check_header sys/resource.h
4466 check_header sys/select.h
4467 check_header sys/time.h
4468 check_header sys/un.h
4469 check_header unistd.h
4470 check_header valgrind/valgrind.h
4471 check_header vdpau/vdpau.h
4472 check_header vdpau/vdpau_x11.h
4473 check_header VideoDecodeAcceleration/VDADecoder.h
4474 check_header windows.h
4475 check_header X11/extensions/XvMClib.h
4477 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4478 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4479 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4481 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4483 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4484 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4485 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4487 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4489 if ! disabled w32threads && ! enabled pthreads; then
4490 check_func_headers "windows.h process.h" _beginthreadex &&
4491 enable w32threads || disable w32threads
4494 # check for some common methods of building with pthread support
4495 # do this before the optional library checks as some of them require pthreads
4496 if ! disabled pthreads && ! enabled w32threads; then
4498 if check_func pthread_join -pthread; then
4500 add_extralibs -pthread
4501 elif check_func pthread_join -pthreads; then
4502 add_cflags -pthreads
4503 add_extralibs -pthreads
4504 elif check_func pthread_join -lpthreadGC2; then
4505 add_extralibs -lpthreadGC2
4506 elif check_lib pthread.h pthread_join -lpthread; then
4508 elif ! check_func pthread_join; then
4513 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4514 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4516 check_lib math.h sin -lm && LIBM="-lm"
4517 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4523 for func in $MATH_FUNCS; do
4524 eval check_mathfunc $func \${${func}_args:-1}
4527 # these are off by default, so fail if requested and not available
4528 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4529 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4530 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4531 enabled cuda && check_lib cuda.h cuInit -lcuda
4532 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4533 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4534 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4535 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4536 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4537 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4538 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4539 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4540 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4541 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4542 done || die "ERROR: libgsm not found"; }
4543 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4544 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4545 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4546 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4547 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4548 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4549 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4550 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4551 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4552 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4553 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4554 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4555 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4556 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4557 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4558 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4559 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4560 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4561 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4562 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4563 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4564 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4565 enabled libvpx_vp8_decoder && {
4566 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4567 disable libvpx_vp8_decoder;
4569 enabled libvpx_vp8_encoder && {
4570 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4571 disable libvpx_vp8_encoder;
4573 enabled libvpx_vp9_decoder && {
4574 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4575 disable libvpx_vp9_decoder;
4577 enabled libvpx_vp9_encoder && {
4578 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4579 disable libvpx_vp9_encoder;
4581 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4582 die "libvpx enabled but no supported decoders found"
4585 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4586 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4587 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4588 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4589 die "ERROR: libx264 version must be >= 0.118."; } &&
4590 { check_cpp_condition x264.h "X264_MPEG2" &&
4592 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4593 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4594 die "ERROR: libx265 version must be >= 57."; }
4595 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4596 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4597 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4598 { ! enabled cross_compile && {
4599 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4600 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4601 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4602 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4603 die "ERROR: mmal not found"; }
4604 enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4605 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4606 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4607 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4608 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4609 die "ERROR: openssl not found"; }
4611 if enabled gnutls; then
4612 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4613 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4617 if enabled libdc1394; then
4618 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4619 enable libdc1394_2; } ||
4620 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4621 enable libdc1394_1; } ||
4622 die "ERROR: No version of libdc1394 found "
4625 if enabled nvenc; then
4626 enabled cuda || check_header cuda.h || die "ERROR: cuda.h not found.";
4627 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4628 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4629 die "ERROR: NVENC API version 4 or older is not supported";
4632 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4633 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4634 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4638 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4639 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4641 check_header linux/fb.h
4642 check_header linux/videodev2.h
4643 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4645 check_header AVFoundation/AVFoundation.h &&
4646 check_objcflags -fobjc-arc &&
4647 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4648 disable AVFoundation_AVFoundation_h
4650 check_header sys/videoio.h
4652 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4653 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4654 # w32api 3.12 had it defined wrong
4655 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4657 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4658 { check_header dev/bktr/ioctl_meteor.h &&
4659 check_header dev/bktr/ioctl_bt848.h; } ||
4660 { check_header machine/ioctl_meteor.h &&
4661 check_header machine/ioctl_bt848.h; } ||
4662 { check_header dev/video/meteor/ioctl_meteor.h &&
4663 check_header dev/video/bktr/ioctl_bt848.h; } ||
4664 check_header dev/ic/bt8xx.h
4666 check_header sndio.h
4667 check_header sys/soundcard.h
4668 check_header soundcard.h
4670 enabled_any alsa_indev alsa_outdev &&
4671 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4673 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4674 check_func jack_port_get_latency_range -ljack
4676 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4678 if enabled libcdio; then
4679 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4680 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4681 die "ERROR: No usable libcdio/cdparanoia found"
4684 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4686 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4687 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4688 enabled libxcb && die "ERROR: libxcb not found";
4689 } && disable x11grab && enable libxcb
4691 disabled libxcb_shm ||
4692 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4693 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4694 } && check_header sys/shm.h && enable libxcb_shm
4696 disabled libxcb_xfixes ||
4697 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4698 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4699 } && enable libxcb_xfixes
4701 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4702 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4705 if enabled x11grab; then
4706 enabled xlib || die "ERROR: Xlib not found"
4707 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4708 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4711 enabled vaapi && enabled xlib &&
4712 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4716 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4719 enabled vdpau && enabled xlib &&
4720 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4721 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4724 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4726 # add some useful compiler flags if supported
4727 check_cflags -Wdeclaration-after-statement
4729 check_cflags -Wdisabled-optimization
4730 check_cflags -Wpointer-arith
4731 check_cflags -Wredundant-decls
4732 check_cflags -Wwrite-strings
4733 check_cflags -Wtype-limits
4734 check_cflags -Wundef
4735 check_cflags -Wmissing-prototypes
4736 check_cflags -Wstrict-prototypes
4737 enabled extra_warnings && check_cflags -Winline
4738 enabled extra_warnings && check_cflags -Wcast-qual
4740 check_disable_warning(){
4741 warning_flag=-W${1#-Wno-}
4742 test_cflags $warning_flag && add_cflags $1
4745 check_disable_warning -Wno-parentheses
4746 check_disable_warning -Wno-switch
4747 check_disable_warning -Wno-format-zero-length
4748 check_disable_warning -Wno-pointer-sign
4750 # add some linker flags
4751 check_ldflags -Wl,--warn-common
4752 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4753 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4754 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4756 # add some strip flags
4757 # -wN '..@*' is more selective than -x, but not available everywhere.
4758 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4760 enabled neon_clobber_test &&
4761 check_ldflags -Wl,--wrap,avcodec_open2 \
4762 -Wl,--wrap,avcodec_decode_audio4 \
4763 -Wl,--wrap,avcodec_decode_video2 \
4764 -Wl,--wrap,avcodec_decode_subtitle2 \
4765 -Wl,--wrap,avcodec_encode_audio2 \
4766 -Wl,--wrap,avcodec_encode_video2 \
4767 -Wl,--wrap,avcodec_encode_subtitle \
4768 -Wl,--wrap,avresample_convert ||
4769 disable neon_clobber_test
4771 enabled xmm_clobber_test &&
4772 check_ldflags -Wl,--wrap,avcodec_open2 \
4773 -Wl,--wrap,avcodec_decode_audio4 \
4774 -Wl,--wrap,avcodec_decode_video2 \
4775 -Wl,--wrap,avcodec_decode_subtitle2 \
4776 -Wl,--wrap,avcodec_encode_audio2 \
4777 -Wl,--wrap,avcodec_encode_video2 \
4778 -Wl,--wrap,avcodec_encode_subtitle \
4779 -Wl,--wrap,avresample_convert \
4780 -Wl,--wrap,sws_scale ||
4781 disable xmm_clobber_test
4783 echo "X { local: *; };" > $TMPV
4784 if test_ldflags -Wl,--version-script,$TMPV; then
4785 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4786 elif test_ldflags -Wl,-M,$TMPV; then
4787 append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
4790 check_cc <<EOF && enable symver_asm_label
4791 void ff_foo(void) __asm__ ("av_foo@VERSION");
4792 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4794 check_cc <<EOF && enable symver_gnu_asm
4795 __asm__(".symver ff_foo,av_foo@VERSION");
4796 void ff_foo(void) {}
4799 if [ -z "$optflags" ]; then
4800 if enabled small; then
4801 optflags=$cflags_size
4802 elif enabled optimizations; then
4803 optflags=$cflags_speed
4805 optflags=$cflags_noopt
4811 enabled lto && check_ldflags "$@"
4815 if enabled lto; then
4816 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4818 check_ldflags -flto $cpuflags
4821 check_optflags $optflags
4822 check_optflags -fno-math-errno
4823 check_optflags -fno-signed-zeros
4825 if enabled icc; then
4826 # Just warnings, no remarks
4828 # -wd: Disable following warnings
4829 # 144, 167, 556: -Wno-pointer-sign
4830 # 1292: attribute "foo" ignored
4831 # 1419: external declaration in primary source file
4832 # 10006: ignoring unknown option -fno-signed-zeros
4833 # 10148: ignoring unknown option -Wno-parentheses
4834 # 10156: ignoring option '-W'; no argument required
4835 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4836 # 11030: Warning unknown option --as-needed
4837 # 10156: ignoring option '-export'; no argument required
4838 check_ldflags -wd10156,11030
4839 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4840 enable ebp_available
4841 if enabled x86_32; then
4842 icc_version=$($cc -dumpversion)
4843 test ${icc_version%%.*} -ge 11 &&
4844 check_cflags -falign-stack=maintain-16-byte ||
4845 disable aligned_stack
4847 elif enabled ccc; then
4848 # disable some annoying warnings
4849 add_cflags -msg_disable bitnotint
4850 add_cflags -msg_disable mixfuncvoid
4851 add_cflags -msg_disable nonstandcast
4852 add_cflags -msg_disable unsupieee
4853 elif enabled gcc; then
4854 check_optflags -fno-tree-vectorize
4855 check_cflags -Werror=implicit-function-declaration
4856 check_cflags -Werror=missing-prototypes
4857 check_cflags -Werror=return-type
4858 check_cflags -Werror=declaration-after-statement
4859 check_cflags -Werror=vla
4860 check_cflags -Werror=format-security
4861 check_cflags -fdiagnostics-color=auto
4862 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4863 elif enabled llvm_gcc; then
4864 check_cflags -mllvm -stack-alignment=16
4865 elif enabled clang; then
4866 check_cflags -mllvm -stack-alignment=16
4867 check_cflags -Qunused-arguments
4868 check_cflags -Werror=implicit-function-declaration
4869 check_cflags -Werror=missing-prototypes
4870 check_cflags -Werror=return-type
4871 elif enabled cparser; then
4872 add_cflags -Wno-missing-variable-declarations
4873 add_cflags -Wno-empty-statement
4874 elif enabled armcc; then
4875 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4876 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4877 # 2523: use of inline assembly is deprecated
4878 add_cflags -W${armcc_opt},--diag_suppress=2523
4879 add_cflags -W${armcc_opt},--diag_suppress=1207
4880 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4881 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4882 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4883 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4884 elif enabled tms470; then
4885 add_cflags -pds=824 -pds=837
4887 elif enabled pathscale; then
4888 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4889 elif enabled_any msvc icl; then
4890 enabled x86_32 && disable aligned_stack
4891 enabled_all x86_32 debug && add_cflags -Oy-
4892 enabled debug && add_ldflags -debug
4893 enable pragma_deprecated
4894 if enabled icl; then
4895 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4896 # (correctly) on icl 13.x.
4897 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4898 add_cflags -Qansi-alias
4899 # icl will pass the inline asm tests but inline asm is currently
4900 # not supported (build will fail)
4903 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4904 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4905 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4906 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4907 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4908 # MSVC 2013 and newer can handle it fine.
4909 # If this declspec fails, force including stdlib.h before the restrict redefinition
4910 # happens in config.h.
4911 if [ $_restrict != restrict ]; then
4912 check_cc <<EOF || add_cflags -FIstdlib.h
4913 __declspec($_restrict) void* foo(int);
4916 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4919 for pfx in "" host_; do
4920 varname=${pfx%_}cc_type
4921 eval "type=\$$varname"
4922 if [ $type = "msvc" ]; then
4923 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4924 static inline int foo(int a) { return a; }
4931 add_asflags -Qunused-arguments
4937 check_ldflags -Qunused-arguments
4943 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4946 add_cppflags -Dmain=plan9_main
4950 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4952 check_deps $CONFIG_LIST \
4957 enabled_all dxva2 CoTaskMemFree &&
4958 prepend avconv_libs $($ldflags_filter "-lole32") &&
4961 ! enabled_any memalign posix_memalign aligned_malloc &&
4962 enabled simd_align_16 && enable memalign_hack
4964 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4966 for thread in $THREADS_LIST; do
4967 if enabled $thread; then
4968 test -n "$thread_type" &&
4969 die "ERROR: Only one thread type must be selected." ||
4970 thread_type="$thread"
4974 enabled zlib && add_cppflags -DZLIB_CONST
4976 # conditional library dependencies, in linking order
4977 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
4978 enabled resample_filter && prepend avfilter_deps "avresample"
4979 enabled scale_filter && prepend avfilter_deps "swscale"
4981 enabled opus_decoder && prepend avcodec_deps "avresample"
4985 eval "deps=\$$lib_deps"
4986 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4990 map 'expand_deps $v' $LIBRARY_LIST
4992 echo "install prefix $prefix"
4993 echo "source path $source_path"
4994 echo "C compiler $cc"
4995 echo "C library $libc_type"
4996 if test "$host_cc" != "$cc"; then
4997 echo "host C compiler $host_cc"
4998 echo "host C library $host_libc_type"
5000 echo "ARCH $arch ($cpu)"
5001 if test "$build_suffix" != ""; then
5002 echo "build suffix $build_suffix"
5004 if test "$extra_version" != ""; then
5005 echo "version string suffix $extra_version"
5007 echo "big-endian ${bigendian-no}"
5008 echo "runtime cpu detection ${runtime_cpudetect-no}"
5009 if enabled x86; then
5010 echo "${yasmexe} ${yasm-no}"
5011 echo "MMX enabled ${mmx-no}"
5012 echo "MMXEXT enabled ${mmxext-no}"
5013 echo "3DNow! enabled ${amd3dnow-no}"
5014 echo "3DNow! extended enabled ${amd3dnowext-no}"
5015 echo "SSE enabled ${sse-no}"
5016 echo "SSSE3 enabled ${ssse3-no}"
5017 echo "AVX enabled ${avx-no}"
5018 echo "XOP enabled ${xop-no}"
5019 echo "FMA3 enabled ${fma3-no}"
5020 echo "FMA4 enabled ${fma4-no}"
5021 echo "i686 features enabled ${i686-no}"
5022 echo "CMOV is fast ${fast_cmov-no}"
5023 echo "EBX available ${ebx_available-no}"
5024 echo "EBP available ${ebp_available-no}"
5026 if enabled aarch64; then
5027 echo "NEON enabled ${neon-no}"
5028 echo "VFP enabled ${vfp-no}"
5030 if enabled arm; then
5031 echo "ARMv5TE enabled ${armv5te-no}"
5032 echo "ARMv6 enabled ${armv6-no}"
5033 echo "ARMv6T2 enabled ${armv6t2-no}"
5034 echo "VFP enabled ${vfp-no}"
5035 echo "NEON enabled ${neon-no}"
5037 if enabled ppc; then
5038 echo "AltiVec enabled ${altivec-no}"
5039 echo "VSX enabled ${vsx-no}"
5040 echo "POWER8 enabled ${power8-no}"
5041 echo "PPC 4xx optimizations ${ppc4xx-no}"
5042 echo "dcbzl available ${dcbzl-no}"
5044 echo "debug symbols ${debug-no}"
5045 echo "optimize for size ${small-no}"
5046 echo "optimizations ${optimizations-no}"
5047 echo "static ${static-no}"
5048 echo "shared ${shared-no}"
5049 echo "new filter support ${avfilter-no}"
5050 echo "network support ${network-no}"
5051 echo "threading support ${thread_type-no}"
5052 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5053 echo "SDL support ${sdl-no}"
5054 test -n "$random_seed" &&
5055 echo "random seed ${random_seed}"
5058 echo "External libraries:"
5059 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5063 print_enabled '' $LIBRARY_LIST | print_3_columns
5066 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5067 echo "Enabled ${type}s:"
5068 eval list=\$$(toupper $type)_LIST
5069 print_enabled '_*' $list | print_3_columns
5073 license="LGPL version 2.1 or later"
5074 if enabled nonfree; then
5075 license="nonfree and unredistributable"
5076 elif enabled gplv3; then
5077 license="GPL version 3 or later"
5078 elif enabled lgplv3; then
5079 license="LGPL version 3 or later"
5080 elif enabled gpl; then
5081 license="GPL version 2 or later"
5084 echo "License: $license"
5086 echo "Creating config.mak and config.h..."
5088 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5090 config_files="$TMPH config.mak"
5092 cat > config.mak <<EOF
5093 # Automatically generated by configure - do not modify!
5094 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5096 LIBDIR=\$(DESTDIR)$libdir
5097 SHLIBDIR=\$(DESTDIR)$shlibdir
5098 INCDIR=\$(DESTDIR)$incdir
5099 BINDIR=\$(DESTDIR)$bindir
5100 DATADIR=\$(DESTDIR)$datadir
5101 DOCDIR=\$(DESTDIR)$docdir
5102 MANDIR=\$(DESTDIR)$mandir
5103 SRC_PATH=$source_path
5106 INTRINSICS=$intrinsics
5113 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5115 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5126 OBJCFLAGS=$OBJCFLAGS
5141 LDEXEFLAGS=$LDEXEFLAGS
5142 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5143 STRIPFLAGS=$STRIPFLAGS
5144 YASMFLAGS=$YASMFLAGS
5145 BUILDSUF=$build_suffix
5153 EXTRA_VERSION=$extra_version
5155 CCDEP_FLAGS=$CCDEP_FLAGS
5157 ASDEP_FLAGS=$ASDEP_FLAGS
5158 CC_DEPFLAGS=$CC_DEPFLAGS
5159 AS_DEPFLAGS=$AS_DEPFLAGS
5162 HOSTCFLAGS=$host_cflags
5163 HOSTCPPFLAGS=$host_cppflags
5164 HOSTEXESUF=$HOSTEXESUF
5165 HOSTLDFLAGS=$host_ldflags
5168 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5169 HOSTCCDEP=$HOSTCCDEP
5170 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5171 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5175 TARGET_EXEC=$target_exec $target_exec_args
5176 TARGET_PATH=$target_path
5177 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5178 CFLAGS-avplay=$sdl_cflags
5179 ZLIB=$($ldflags_filter -lz)
5180 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5181 EXTRALIBS=$extralibs
5182 COMPAT_OBJS=$compat_objs
5185 LIBTARGET=${LIBTARGET}
5186 SLIBNAME=${SLIBNAME}
5187 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5188 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5189 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5190 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5191 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5192 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5193 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5194 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5195 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5200 name=$(toupper $lcname)
5201 file=$source_path/$lcname/version.h
5202 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5203 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5204 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5205 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5206 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5209 map 'get_version $v' $LIBRARY_LIST
5211 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5213 print_program_libs(){
5214 eval "program_libs=\$${1}_libs"
5215 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5218 map 'print_program_libs $v' $PROGRAM_LIST
5221 /* Automatically generated by configure - do not modify! */
5222 #ifndef LIBAV_CONFIG_H
5223 #define LIBAV_CONFIG_H
5224 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5225 #define LIBAV_LICENSE "$(c_escape $license)"
5226 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5227 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5228 #define restrict $_restrict
5229 #define EXTERN_PREFIX "${extern_prefix}"
5230 #define EXTERN_ASM ${extern_prefix}
5231 #define SLIBSUF "$SLIBSUF"
5234 test -n "$malloc_prefix" &&
5235 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5237 if enabled yasm; then
5238 append config_files $TMPASM
5242 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5244 print_config ARCH_ "$config_files" $ARCH_LIST
5245 print_config HAVE_ "$config_files" $HAVE_LIST
5246 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5250 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5252 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5253 cp_if_changed $TMPH config.h
5256 enabled yasm && cp_if_changed $TMPASM config.asm
5259 /* Generated by ffconf */
5260 #ifndef AVUTIL_AVCONFIG_H
5261 #define AVUTIL_AVCONFIG_H
5264 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5266 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5268 cp_if_changed $TMPH libavutil/avconfig.h
5270 test -n "$WARNINGS" && printf "\n$WARNINGS"
5272 # build pkg-config files
5275 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5278 pkgconfig_generate(){
5280 shortname=${name#lib}${build_suffix}
5284 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5285 requires=${requires%, }
5286 enabled ${name#lib} || return 0
5288 cat <<EOF > $name/$name.pc
5290 exec_prefix=\${prefix}
5295 Description: $comment
5297 Requires: $(enabled shared || echo $requires)
5298 Requires.private: $(enabled shared && echo $requires)
5300 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5301 Libs.private: $(enabled shared && echo $libs)
5302 Cflags: -I\${includedir}
5304 cat <<EOF > $name/$name-uninstalled.pc
5307 libdir=\${pcfiledir}
5308 includedir=${source_path}
5311 Description: $comment
5315 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5316 Cflags: -I\${includedir}
5320 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5321 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5322 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5323 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5324 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5325 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5326 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"