Fix remaining windows (32 bit) warnings.

sql/debug_sync.cc

@@ -1942,4 +1942,7 @@ bool debug_sync_set_action(THD *thd, const char *action_str, size_t len)
 }
 
 
-#endif /* defined(ENABLED_DEBUG_SYNC) */
+#else /* defined(ENABLED_DEBUG_SYNC) */
+/* prevent linker/lib warning about file without public symbols */
+int debug_sync_dummy; 
+#endif /* defined(ENABLED_DEBUG_SYNC) */
\ No newline at end of file

storage/pbxt/src/lock_xt.cc

@@ -2062,6 +2062,7 @@ static void lck_do_job(XTThreadPtr self, int job, XSLockTestPtr data, xtBool rea
 
 	switch (job) {
 		case JOB_MEMCPY:
+			b2[0]=0;
 			memcpy(b1, b2, 2048);
 			data->xs_inc++;
 			break;