Fix win32 build

diff --git a/ext/pdo_mysql/mysql_driver.c b/ext/pdo_mysql/mysql_driver.c
index bc618f452948a8cd6fa4d97bb3b61a8e91ef91d3..e7e832ac578fd7c33b320c622ce21822b613d6ea 100755 (executable)
--- a/ext/pdo_mysql/mysql_driver.c
+++ b/ext/pdo_mysql/mysql_driver.c
@@ -131,7 +131,9 @@ static int pdo_mysql_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_
                { "dbname",   "",       0 },
                { "host",   "localhost",        0 },
                { "port",   "3306",     0 },
+#ifdef PDO_MYSQL_UNIX_ADDR
                { "unix_socket",  PDO_MYSQL_UNIX_ADDR,  0 },
+#endif
        };
 
        php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, 4);