commit ac042ab93db179d98f3b742ff893032e77326417
author Marshall Clow <mclow.lists@gmail.com> Tue Oct 20 07:37:11 2015 +0000
committer Marshall Clow <mclow.lists@gmail.com> Tue Oct 20 07:37:11 2015 +0000
tree edeece4f85e48b39845b6d075bccb82951904e41
parent 8f6e763c49701838c47ab105e81634fc21bc77cf

Detect relaxed constexpr rules for gcc versions

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@250802 91177308-0d34-0410-b5e6-96231b3b80d8

include/__config

diff --git a/include/__config b/include/__config
index bc01805..b7e3532 100644
--- a/include/__config
+++ b/include/__config
@@ -451,8 +451,11 @@
 #define _LIBCPP_HAS_NO_CONSTEXPR
 #endif
 
-// No version of GCC supports relaxed constexpr rules
+// Determine if GCC supports relaxed constexpr
+#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L
 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
+#endif
+
 // GCC 5 will support variable templates
 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES