From 4e32b74b46a830454ab88678f1cb5eed3e96c615 Mon Sep 17 00:00:00 2001
From: Alexander Bock <alexander.bock@liu.se>
Date: Thu, 22 Sep 2016 07:57:34 +0200
Subject: [PATCH] Potential GCC compile fix

---
 include/openspace/documentation/verifier.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/openspace/documentation/verifier.h b/include/openspace/documentation/verifier.h
index badc208218..d09a386fdc 100644
--- a/include/openspace/documentation/verifier.h
+++ b/include/openspace/documentation/verifier.h
@@ -311,6 +311,8 @@ struct LessVerifier : public OperatorVerifier<T, std::less<typename T::Type>> {
     using OperatorVerifier<T, std::less<typename T::Type>>::OperatorVerifier;
 
     std::string documentation() const;
+
+    using OperatorVerifier<T, std::less<typename T::Type>>::value;
 };
 
 /**
@@ -340,6 +342,8 @@ struct LessEqualVerifier : public OperatorVerifier<T, std::less_equal<typename T
     using OperatorVerifier<T, std::less_equal<typename T::Type>>::OperatorVerifier;
 
     std::string documentation() const override;
+
+    using OperatorVerifier<T, std::less_equal<typename T::Type>>::value;
 };
 
 /**
@@ -369,6 +373,8 @@ struct GreaterVerifier : public OperatorVerifier<T, std::greater<typename T::Typ
     using OperatorVerifier<T, std::greater<typename T::Type>>::OperatorVerifier;
 
     std::string documentation() const override;
+
+    using OperatorVerifier<T, std::greater<typename T::Type>>::value;
 };
 
 /**
@@ -398,6 +404,8 @@ struct GreaterEqualVerifier : public OperatorVerifier<T, std::greater_equal<type
     using OperatorVerifier<T, std::greater_equal<typename T::Type>>::OperatorVerifier;
 
     std::string documentation() const override;
+
+    using OperatorVerifier<T, std::greater_equal<typename T::Type>>::value;
 };
 
 /**
@@ -411,6 +419,8 @@ struct EqualVerifier : public OperatorVerifier<T, std::equal_to<typename T::Type
     using OperatorVerifier<T, std::equal_to<typename T::Type>>::OperatorVerifier;
 
     std::string documentation() const override;
+
+    using OperatorVerifier<T, std::equal_to<typename T::Type>>::value;
 };
 
 /**
@@ -425,6 +435,8 @@ struct UnequalVerifier : public OperatorVerifier<T, std::not_equal_to<typename T
     using OperatorVerifier<T, std::not_equal_to<typename T::Type>>::OperatorVerifier;
 
     std::string documentation() const override;
+
+    using OperatorVerifier<T, std::not_equal_to<typename T::Type>>::value;
 };
 
 //----------------------------------------------------------------------------------------