Merge pull request #107 from EarthlingKira/fix-c++14-usage

Fix c++11 to c++14 in configure.ac

Author: zauguin

configure.ac

@@ -59,7 +59,7 @@ TEST_AND_SET_CXXFLAG(-Wextra)
 TEST_AND_SET_CXXFLAG(-W)
 TEST_AND_SET_CXXFLAG(-O3)
 TEST_AND_SET_CXXFLAG(-Werror)
-TEST_AND_SET_CXXFLAG(-std=c++11)
+TEST_AND_SET_CXXFLAG(-std=c++14)
 
 
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