From a8d1fc4d84c12cf0eb89c219e7c863722cfb91f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Mon, 12 Dec 2016 22:41:39 +0100
Subject: [PATCH] Math: work around constexpr issues on old GCCs in Frustum
 test.

Travis CI GCC 4.7 and Android NDK GCC 4.9 fail to compile that. GCC 6
works, not sure about GCC 5.
---
 src/Magnum/Math/Test/FrustumTest.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Magnum/Math/Test/FrustumTest.cpp b/src/Magnum/Math/Test/FrustumTest.cpp
index 5237acff0..0dcfcd604 100644
--- a/src/Magnum/Math/Test/FrustumTest.cpp
+++ b/src/Magnum/Math/Test/FrustumTest.cpp
@@ -261,7 +261,10 @@ void FrustumTest::data() {
     /* Using default-constructed to verify that the planes are in correct order */
     constexpr Frustum a;
 
-    constexpr Vector4 right = a.planes()[1];
+    #if !defined(__GNUC__) || __GNUC__*100 + __GNUC_MINOR__ >= 500
+    constexpr
+    #endif
+    Vector4 right = a.planes()[1];
     CORRADE_COMPARE(right, (Vector4{-1.0f, 0.0f, 0.0f, 1.0f}));
 
     constexpr Vector4 bottom = a[2];