From 11402edfd307cfad285968af8adaad2eddcd7f9c Mon Sep 17 00:00:00 2001
From: Benoit Jacob <jacob.benoit.1@gmail.com>
Date: Wed, 16 Feb 2011 12:01:47 -0500
Subject: [PATCH] with old gcc (bug #89), only include iostream in debug mode

---
 Eigen/Core | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Eigen/Core b/Eigen/Core
index 29b3a2ac1..da8eb9953 100644
--- a/Eigen/Core
+++ b/Eigen/Core
@@ -157,7 +157,9 @@
 #include <algorithm>
 
 #if !EIGEN_SAFE_TO_USE_STANDARD_ASSERT_MACRO
-#include <iostream> // for custom assert implementation
+  #ifndef EIGEN_NO_DEBUG
+    #include <iostream> // for custom assert implementation
+  #endif
 #endif
 
 // for outputting debug info