From 84a65f996f0150dcd450c11cebfcaaf1c5304f0d Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Thu, 19 May 2016 15:21:53 +0200
Subject: [PATCH] bug #1221: disable gcc 6 warning: ignoring attributes on
 template argument

---
 Eigen/src/Core/util/DisableStupidWarnings.h  | 8 ++++++++
 Eigen/src/Core/util/ReenableStupidWarnings.h | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/Eigen/src/Core/util/DisableStupidWarnings.h b/Eigen/src/Core/util/DisableStupidWarnings.h
index 6a0bf0629..c53457a12 100644
--- a/Eigen/src/Core/util/DisableStupidWarnings.h
+++ b/Eigen/src/Core/util/DisableStupidWarnings.h
@@ -35,6 +35,14 @@
     #pragma clang diagnostic push
   #endif
   #pragma clang diagnostic ignored "-Wconstant-logical-operand"
+
+#elif defined __GNUC__ && __GNUC__>=6
+
+  #ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS
+    #pragma GCC diagnostic push
+  #endif
+  #pragma GCC diagnostic ignored "-Wignored-attributes"
+
 #endif
 
 #endif // not EIGEN_WARNINGS_DISABLED
diff --git a/Eigen/src/Core/util/ReenableStupidWarnings.h b/Eigen/src/Core/util/ReenableStupidWarnings.h
index 5ddfbd4aa..d573bbd4a 100644
--- a/Eigen/src/Core/util/ReenableStupidWarnings.h
+++ b/Eigen/src/Core/util/ReenableStupidWarnings.h
@@ -8,7 +8,10 @@
     #pragma warning pop
   #elif defined __clang__
     #pragma clang diagnostic pop
+  #elif defined __GNUC__ && __GNUC__>=6
+    #pragma GCC diagnostic pop
   #endif
+
 #endif
 
 #endif // EIGEN_WARNINGS_DISABLED