fix C89 compat

Author: weltling

ext/pdo_dblib/dblib_driver.c

@@ -286,8 +286,6 @@ static int pdo_dblib_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_
 
 	};
 
-	nvers = sizeof(tdsver)/sizeof(tdsver[0]);
-	
 	struct pdo_data_src_parser vars[] = {
 		{ "charset",	NULL,	0 }
 		,{ "appname",	"PHP " PDO_DBLIB_FLAVOUR,	0 }
@@ -298,6 +296,7 @@ static int pdo_dblib_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_
 	};
 
 	nvars = sizeof(vars)/sizeof(vars[0]);
+	nvers = sizeof(tdsver)/sizeof(tdsver[0]);
 
 	php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, nvars);