bdr: silence compiler warning in UDR

diff --git a/bdr_init_copy.c b/bdr_init_copy.c
index 5bcd7de69333f0c49a4c9693758c9a18cc599ca1..ef97d143ce3683df216ffbfb7d51d64c245bdebe 100644 (file)
--- a/bdr_init_copy.c
+++ b/bdr_init_copy.c
@@ -931,7 +931,9 @@ install_extension(PGconn *conn, const char *extname)
 static void
 validate_remote_node(PGconn *conn)
 {
+#ifdef BUILDING_BDR
    PGresult   *res;
+#endif
    PQExpBuffer query = createPQExpBuffer();
 
    if (!extension_exists(conn, "bdr"))