From 82c4a755af9543143526a9385fda8a5b487545d4 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 29 Jun 2010 18:17:17 +0200
Subject: [PATCH] disable empty struct trick for buggy gcc 4.3

---
 Eigen/src/Core/util/XprHelper.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Eigen/src/Core/util/XprHelper.h b/Eigen/src/Core/util/XprHelper.h
index 393e6696c..7e6cb3381 100644
--- a/Eigen/src/Core/util/XprHelper.h
+++ b/Eigen/src/Core/util/XprHelper.h
@@ -27,10 +27,10 @@
 #define EIGEN_XPRHELPER_H
 
 // just a workaround because GCC seems to not really like empty structs
-#ifdef __GNUG__
+#if (defined __GNUG__) && !((__GNUC__==4) && (__GNUC_MINOR__==3))
   #define EIGEN_EMPTY_STRUCT_CTOR(X) \
     EIGEN_STRONG_INLINE X() {} \
-    EIGEN_STRONG_INLINE X(const X&) {}
+    EIGEN_STRONG_INLINE X(const X& ) {}
 #else
   #define EIGEN_EMPTY_STRUCT_CTOR(X)
 #endif