Take an essential fix from "trunk" into 5.5.1-m2

which arrived only after cloning.

Original comment:
| revision-id: vvaintroub@mysql.com-20091222204937-bcjk6at5mzek126g
| parent: mikael@mysql.com-20091219122600-somflpgtzosglijm
| committer: Vladislav Vaintroub <vvaintroub@mysql.com>
| branch nick: mysql-trunk-bugfixing
| timestamp: Tue 2009-12-22 21:49:37 +0100
| message:
|   Fix build error with CMake 2.8 (mysql_stmt_next_result not exported
|   by shared embedded library)

libmysqld/libmysqld.def

@@ -104,3 +104,4 @@ EXPORTS
 	mysql_stmt_attr_get
 	mysql_stmt_attr_set
 	mysql_stmt_field_count
+	mysql_stmt_next_result