serialport.c: Fix an 'unused variable' compiler warning.

diff --git a/serialport.c b/serialport.c
index ef619418a7eadd235c9f98bf157b06a7f30b45f5..9671731b58fdaf56a7e3ced53d7870584424ae30 100644 (file)
--- a/serialport.c
+++ b/serialport.c
@@ -55,7 +55,9 @@ static enum sp_return set_config(struct sp_port *port, struct port_data *data,
 SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr)
 {
        struct sp_port *port;
+#ifndef NO_PORT_METADATA
        enum sp_return ret;
+#endif
        int len;
 
        TRACE("%s, %p", portname, port_ptr);