diff -Naur wmapm-3.1.orig/wmgeneral/wmgeneral.c wmapm-3.1/wmgeneral/wmgeneral.c
--- wmapm-3.1.orig/wmgeneral/wmgeneral.c	1998-08-04 03:49:00.000000000 +0200
+++ wmapm-3.1/wmgeneral/wmgeneral.c	2020-06-13 10:46:38.921354685 +0200
@@ -50,6 +50,7 @@
 GC			NormalGC;
 XpmIcon		wmgen;
 Pixmap		pixmask;
+Display		*display;
 
   /*****************/
  /* Mouse Regions */
diff -Naur wmapm-3.1.orig/wmgeneral/wmgeneral.h wmapm-3.1/wmgeneral/wmgeneral.h
--- wmapm-3.1.orig/wmgeneral/wmgeneral.h	1998-08-04 03:49:00.000000000 +0200
+++ wmapm-3.1/wmgeneral/wmgeneral.h	2020-06-13 10:46:31.276348472 +0200
@@ -28,7 +28,7 @@
  /* Global variable */
 /*******************/
 
-Display		*display;
+extern Display		*display;
 
   /***********************/
  /* Function Prototypes */