From 6486d4fc959a91743f9330e460c13ee4b2e10723 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Sat, 11 Feb 2017 10:29:10 +0100
Subject: Worakound gcc 4.7 issue in c++11.

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

(limited to 'Eigen/src/Core/ArithmeticSequence.h')

diff --git a/Eigen/src/Core/ArithmeticSequence.h b/Eigen/src/Core/ArithmeticSequence.h
index 99b954432..ada1571f1 100644
--- a/Eigen/src/Core/ArithmeticSequence.h
+++ b/Eigen/src/Core/ArithmeticSequence.h
@@ -14,7 +14,7 @@ namespace Eigen {
 
 namespace internal {
 
-#if !EIGEN_HAS_CXX11
+#if (!EIGEN_HAS_CXX11) || !((!EIGEN_COMP_GNUC) || EIGEN_COMP_GNUC>=48)
 template<typename T> struct aseq_negate {};
 
 template<> struct aseq_negate<Index> {
@@ -138,7 +138,7 @@ protected:
 
 public:
 
-#if EIGEN_HAS_CXX11
+#if EIGEN_HAS_CXX11 && ((!EIGEN_COMP_GNUC) || EIGEN_COMP_GNUC>=48)
   auto reverse() const -> decltype(Eigen::seqN(m_first+(m_size+fix<-1>())*m_incr,m_size,-m_incr)) {
     return seqN(m_first+(m_size+fix<-1>())*m_incr,m_size,-m_incr);
   }
-- 
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