commit a49c4bc11bd86ad05cdb321442bef3421322fd22
author MITSUNARI Shigeo <herumi@nifty.com> Sun Nov 15 11:14:12 2020 +0900
committer MITSUNARI Shigeo <herumi@nifty.com> Sun Nov 15 11:14:12 2020 +0900
tree 85d1b950d3c9262805aeda959acf8e08a9bc8dea
parent 70777a69937b1ddd588e0c24091c0fd1781c0897

disable XBYAK_CONSTEXPR for g++-5 -std=c++-14

xbyak/xbyak.h

diff --git a/xbyak/xbyak.h b/xbyak/xbyak.h
index 5d959e0..44f7790 100644
--- a/xbyak/xbyak.h
+++ b/xbyak/xbyak.h
@@ -117,8 +117,11 @@
 	#define XBYAK_NOEXCEPT throw()
 #endif
 
-#if (__cplusplus >= 201402L) || (defined(_MSC_VER) && _MSC_VER >= 1910) // Visual Studio 2017 version 15.0
-	#define XBYAK_CONSTEXPR constexpr // require c++14 or later
+// require c++14 or later
+// Visual Studio 2017 version 15.0 or later
+// g++-6 or later
+#if ((__cplusplus >= 201402L) && !(!defined(__clang__) && defined(__GNUC__) && (__GNUC__ <= 5))) || (defined(_MSC_VER) && _MSC_VER >= 1910)
+	#define XBYAK_CONSTEXPR constexpr
 #else
 	#define XBYAK_CONSTEXPR
 #endif