build fix

git-svn-id: http://svn.openzap.org/svn/openzap/trunk@364 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/freetdm/src/fsk.c

@@ -237,7 +237,8 @@ void dsp_fsk_destroy(dsp_fsk_handle_t **handle)
 	}
 
 	if ((*handle)->attr.bytehandler) {
-		dsp_uart_destroy((dsp_uart_handle_t**)&(*handle)->attr.bithandler_arg);
+		dsp_uart_handle_t** dhandle = (void *)(&(*handle)->attr.bithandler_arg);
+		dsp_uart_destroy(dhandle);
 	}
 
 	free(*handle);