From ff4057b6a1c83af831ad36db2a517ccca3fc5381 Mon Sep 17 00:00:00 2001
From: Thorvald Natvig <slicer@users.sourceforge.net>
Date: Tue, 1 Dec 2009 12:45:41 +0100
Subject: [PATCH] Try to promote libGL.so to global scope if we can't resolve
 it directly

---
 overlay_gl/overlay.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/overlay_gl/overlay.c b/overlay_gl/overlay.c
index 31c3c7ce5..c9506798b 100644
--- a/overlay_gl/overlay.c
+++ b/overlay_gl/overlay.c
@@ -107,6 +107,16 @@ FDEF(glXGetProcAddress);
 
 static void resolveOpenGL() {
 	RESOLVE(glXSwapBuffers);
+	
+	if (! oglXSwapBuffers) {
+		void *lib = dlopen("libGL.so.1", RTLD_GLOBAL | RTLD_NOLOAD);
+		if (! lib)
+			return;
+		RESOLVE(glXSwapBuffers);
+		if (! oglXSwapBuffers)
+			dlclose(lib);
+	}
+	
 	RESOLVE(glXGetProcAddressARB);
 	RESOLVE(glXGetProcAddress);
 }