error: no matching function

[AN]

FreeBSD FBSD10 10.0-CURRENT FreeBSD 10.0-CURRENT #24 r241450: Thu Oct 11 
15:16:27 EDT 2012     root at FBSD10:/usr/obj/usr/src/sys/MYKERNEL  amd64

clang++ -o String.o -c  -I./../../dist/system_wrappers_js -include 
../../../js/src/config/gcc_hidden.h -DENABLE_YARR_JIT=1 
-DMOZ_GLUE_IN_PROGRAM -DEXPORT_JS_API -DJS_HAS_CTYPES -DDLL_PREFIX=\"lib\" 
-DDLL_SUFFIX=\".so\" -DNO_NSPR_10_SUPPORT -DUSE_ZLIB 
-I/usr/local/lib/libffi-3.0.9/include   -I. 
-I../../../js/src/../../mfbt/double-conversion -I../../../js/src -I. 
-I./../../dist/include  -I/usr/local/include/nspr      -I../../../js/src 
-I../../../js/src/assembler -I../../../js/src/yarr  -fPIC 
-Qunused-arguments -isystem/usr/local/include  -I/usr/local/include 
-Qunused-arguments -Wall -Wpointer-arith -Woverloaded-virtual 
-Werror=return-type -Wtype-limits -Wempty-body -Werror=conversion-null 
-Wno-ctor-dtor-privacy -Wno-overlength-strings -Wno-invalid-offsetof 
-Wno-variadic-macros -Wno-c++0x-extensions -Wno-extended-offsetof 
-Wno-unknown-warning-option -Wno-return-type-c-linkage 
-Wno-mismatched-tags -O2 -pipe -fno-strict-aliasing -fno-rtti 
-ffunction-sections -fdata-sections -fno-exceptions -pipe  -DNDEBUG 
-DTRIMMED -O2 -fomit-frame-pointer -DUSE_SYSTEM_MALLOC=1 
-DENABLE_ASSEMBLER=1 -DENABLE_JIT=1  -Qunused-arguments 
-isystem/usr/local/include  -I/usr/local/include -DMOZILLA_CLIENT -include 
./js-confdefs.h -MD -MF .deps/String.o.pp 
/home/root/ff_nightly/work/mozilla-central-847807ab2646/js/src/vm/String.cpp
BytecodeCompiler.cpp
/home/root/ff_nightly/work/mozilla-central-847807ab2646/js/src/vm/Stack.cpp:839:18: 
error: no matching function
       for call to 'mincore'
     int result = mincore(base_, numBytes, vec);
                  ^~~~~~~
/usr/include/sys/mman.h:226:5: note: candidate function not viable: no 
known conversion from 'MincoreArgType *'
       (aka 'unsigned char *') to 'char *' for 3rd argument
int     mincore(const void *, size_t, char *);
         ^
1 error generated.
gmake[3]: *** [Stack.o] Error 1
gmake[3]: *** Waiting for unfinished jobs....
gmake[3]: Leaving directory 
`/home/root/ff_nightly/work/mozilla-central-847807ab2646/obj-x86_64-portbld-freebsd10.0/js/src'
gmake[2]: *** [libs_tier_js] Error 2
gmake[2]: Leaving directory 
`/home/root/ff_nightly/work/mozilla-central-847807ab2646/obj-x86_64-portbld-freebsd10.0'
gmake[1]: *** [tier_js] Error 2
gmake[1]: Leaving directory 
`/home/root/ff_nightly/work/mozilla-central-847807ab2646/obj-x86_64-portbld-freebsd10.0'
gmake: *** [default] Error 2