From b6e5a0a6793ac3f9fb83bfc761bc23e89343a419 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sun, 24 May 2015 02:51:54 +0200
Subject: [PATCH] Try to avoid crashing in wxGTK wxCairoContext ctor.

Don't use an uninitialized pointer in wxCairoContext ctor from wxPrinterDC in
wxGTK if retrieving Cairo context of the DC failed, set m_context to NULL in
this case (not sure if this is still not going to crash when used in
cairo_translate() below though).
---
 src/generic/graphicc.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp
index bafb4af36e..a19ad92f12 100644
--- a/src/generic/graphicc.cpp
+++ b/src/generic/graphicc.cpp
@@ -1680,6 +1680,8 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, const wxPrinterDC&
     cairo_t* cr = static_cast<cairo_t*>(impl->GetCairoContext());
     if (cr)
         Init(cairo_reference(cr));
+    else
+        m_context = NULL;
 #endif
     wxSize sz = dc.GetSize();
     m_width = sz.x;