From e2a38e600c5bf5f7565995125dcb687e07e3e7dd Mon Sep 17 00:00:00 2001
From: Howard Hinnant <howard.hinnant@gmail.com>
Date: Sat, 5 Aug 2017 16:06:20 -0400
Subject: [PATCH] Set constexpr rules to C++11 for Oracle 12.6 and earlier

---
 date.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/date.h b/date.h
index 7a2a008..04b340c 100644
--- a/date.h
+++ b/date.h
@@ -85,6 +85,13 @@ namespace date
 #    define NOEXCEPT noexcept
 #  endif
 
+#elif defined(__SUNPRO_CC) && __SUNPRO_CC <= 0x5150
+// Oracle Developer Studio 12.6 and earlier
+#  define CONSTDATA constexpr const
+#  define CONSTCD11 constexpr
+#  define CONSTCD14
+#  define NOEXCEPT noexcept
+
 #elif __cplusplus >= 201402
 // C++14
 #  define CONSTDATA constexpr const