From f1ac757bd28351fd57113a1e16f6c2e00ab193c1 Mon Sep 17 00:00:00 2001
From: Bruno de Oliveira Abinader <bruno@mapbox.com>
Date: Tue, 11 Jul 2017 15:11:14 +0300
Subject: [core] GCC 4.9 does not fully support custom variable templates

---
 include/mbgl/util/interpolate.hpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'include/mbgl/util/interpolate.hpp')

diff --git a/include/mbgl/util/interpolate.hpp b/include/mbgl/util/interpolate.hpp
index a2103f18b2..6738987598 100644
--- a/include/mbgl/util/interpolate.hpp
+++ b/include/mbgl/util/interpolate.hpp
@@ -95,7 +95,11 @@ struct Interpolator<std::vector<T>>
     : Uninterpolated {};
 
 template <class T>
-constexpr bool Interpolatable = !std::is_base_of<Uninterpolated, Interpolator<T>>::value;
+struct Interpolatable
+    : std::conditional_t<
+      !std::is_base_of<Uninterpolated, Interpolator<T>>::value,
+      std::true_type,
+      std::false_type> {};
 
 } // namespace util
 } // namespace mbgl
-- 
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