Added type cast necessary for compiling as C++ file (at least under VC++).
Added type cast necessary for compiling as C++ file (at least under VC++).

libexpat/libexpat,tiran/expat,libexpat/libexpat,libexpat/libexpat,tiran/expat,libexpat/libexpat,tiran/expat,tiran/expat,libexpat/libexpat,libexpat/libexpat