diff --git a/src/common/libremoteio.h b/src/common/libremoteio.h
--- a/src/common/libremoteio.h
+++ b/src/common/libremoteio.h
@@ -26,7 +26,24 @@
   private declarations for remoteio, to be included by options.c and remoteio.c
  */
 
-struct remoteio_opts {
+enum remoteio_method
+  {
+    REMOTEIO_METHOD_SSH,
+    /*    REMOTEIO_METHOD_TCP */ /*< someday, maybe */
+    /*    REMOETIO_METHOD_XMLRPC */ /*< again, maybe someday */
+  };
+
+struct remoteio_server
+{
+  struct remoteio_server *next;
+  char *name;
+  char *username;
+  enum remoteio_method method;
+  unsigned int types; /*< See ``Server types'' in protocol.h */
+};
+
+struct remoteio_opts
+{
   char *ssh_command;
 };