--- ../wmgeneral/wmgeneral.h.orig 2020-09-14 21:36:07.239508000 +0200 +++ ../wmgeneral/wmgeneral.h 2020-09-14 21:36:21.104761000 +0200 @@ -40,7 +40,7 @@ /* Global variable */ /*******************/ -Display *display; +extern Display *display; /***********************/ /* Function Prototypes */ --- ../wmgeneral/wmgeneral.c.orig 2020-09-14 21:36:11.135626000 +0200 +++ ../wmgeneral/wmgeneral.c 2020-09-14 21:36:21.107677000 +0200 @@ -55,6 +55,7 @@ /* X11 Variables */ /*****************/ +Display *display; Window Root; int screen; int x_fd;