From e3f838317fe72e84155a0f7a114c84d6b571650e Mon Sep 17 00:00:00 2001
From: Roberto Di Remigio <robertodr@users.noreply.github.com>
Date: Sun, 23 Feb 2020 10:38:55 +0100
Subject: [PATCH] Fix compilation with GCC 5.4.0

This was spotted here: https://travis-ci.org/MRChemSoft/mrchem/jobs/653411396#L559
---
 src/XCFunctional.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/XCFunctional.hpp b/src/XCFunctional.hpp
index b4092f16..29721709 100644
--- a/src/XCFunctional.hpp
+++ b/src/XCFunctional.hpp
@@ -31,7 +31,7 @@ struct XCFunctional {
   int depends{0}; // XC_DENSITY, gradient etc
   xcfun_mode mode{XC_MODE_UNSET};
   xcfun_vars vars{XC_VARS_UNSET};
-  std::array<functional_data *, XC_NR_FUNCTIONALS> active_functionals{nullptr};
+  std::array<functional_data *, XC_NR_FUNCTIONALS> active_functionals{{nullptr}};
   std::array<double, XC_NR_PARAMETERS_AND_FUNCTIONALS> settings;
 };