db: Fix libtool linking against local libstdc++.so
Building the C++ bindings in
a484b35b818768487ff27cf06b8c5d4e128126af
introduced this error on systems with /usr/lib/libstdc++.so present:
/usr/lib/libstdc++.so: file not recognized: File format not recognized
The shipped libtool is sysroot aware, so pass --with-sysroot so it will
extract the sysroot from the compiler.
(From OE-Core rev:
db8a2c29b936e5252970c85def927d9cc56a8376)
Signed-off-by: Tyler Hall <tylerwhall@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>