--- a/resources.h
+++ b/resources.h
@@ -19,7 +19,7 @@
 # define PROGRAM_NAME "xvkbd"
 #endif
 
-struct appres_struct {
+extern struct appres_struct {
   String description;
   String show_manual_command;
 
--- a/xvkbd.c
+++ b/xvkbd.c
@@ -500,6 +500,8 @@
 
 static Pixmap xvkbd_pixmap = None;
 
+struct appres_struct appres;
+
 static int AddKeysym(KeySym keysym, Boolean top);  /* forward */
 static void MakeKeyboard(Boolean remake);
 static void MakeKeypad(Widget form, Widget from_vert, Widget from_horiz);