$OpenBSD: patch-src_gtk_glx_3Demu_cpp,v 1.1 2014/01/24 12:11:33 bentley Exp $
From upstream r4907.
--- src/gtk/glx_3Demu.cpp.orig	Tue Dec 24 02:25:47 2013
+++ src/gtk/glx_3Demu.cpp	Tue Dec 24 02:25:51 2013
@@ -31,7 +31,7 @@ static bool glx_init(void) { return true; }
 static GLXContext ctx;
 static GLXPbuffer pbuf;
 
-void deinit_glx_3Demu(void)
+int deinit_glx_3Demu(void)
 {
     Display *dpy = glXGetCurrentDisplay();
 
