From f069733650db98ee3f4327611f948cad354f88e4 Mon Sep 17 00:00:00 2001
From: Sebastian Messmer <mail@smessmer.de>
Date: Fri, 22 Jul 2016 02:57:03 +0200
Subject: [PATCH] Fix warning on older gcc versions

---
 src/cpp-utils/data/Data.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/cpp-utils/data/Data.cpp b/src/cpp-utils/data/Data.cpp
index ce649269..137635bd 100644
--- a/src/cpp-utils/data/Data.cpp
+++ b/src/cpp-utils/data/Data.cpp
@@ -5,17 +5,18 @@ using std::istream;
 using std::ofstream;
 using std::ifstream;
 using std::ios;
+using boost::optional;
 
 namespace bf = boost::filesystem;
 
 namespace cpputils {
 
-boost::optional<Data> Data::LoadFromFile(const bf::path &filepath) {
+optional<Data> Data::LoadFromFile(const bf::path &filepath) {
   ifstream file(filepath.c_str(), ios::binary);
   if (!file.good()) {
     return boost::none;
   }
-  auto result = LoadFromStream(file);
+  optional<Data> result(LoadFromStream(file));
   if (!file.good()) {
     throw std::runtime_error("Error reading from file");
   }