From a07e8231a5cd3e12f7120486098479ab6ae6bcc2 Mon Sep 17 00:00:00 2001
From: Michael Meeks <michael.meeks@suse.com>
Date: Thu, 20 Oct 2011 21:49:40 +0100
Subject: [PATCH] gtk3: fix cairo canvas crash for non X (or svp) backend

---
 canvas/source/cairo/cairo_xlib_cairo.cxx |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/canvas/source/cairo/cairo_xlib_cairo.cxx b/canvas/source/cairo/cairo_xlib_cairo.cxx
index a0569ab..8e9120d 100644
--- a/canvas/source/cairo/cairo_xlib_cairo.cxx
+++ b/canvas/source/cairo/cairo_xlib_cairo.cxx
@@ -55,6 +55,9 @@ namespace cairo
             return false;
 
         Display* pDisplay = (Display*)pOutDev->GetSystemGfxData().pDisplay;
+        if( !pDisplay )
+            return false;
+
         int nDummy;
         return XQueryExtension( pDisplay, "RENDER", &nDummy, &nDummy, &nDummy );
     }
-- 
1.7.6.4