CMake: Catch troublesome build combinations for -DEXPAT_CHAR_TYPE=wchar_t
CMake: Catch troublesome build combinations for -DEXPAT_CHAR_TYPE=wchar_t

libexpat/libexpat,libexpat/libexpat,libexpat/libexpat,libexpat/libexpat,libexpat/libexpat,libexpat/libexpat