From 6c52e75a03d71b7c65895003a216441c39462098 Mon Sep 17 00:00:00 2001
From: Krystian Stasiowski <sdkrystian@gmail.com>
Date: Fri, 28 Feb 2020 15:44:37 -0500
Subject: [PATCH] Guard deprecated code

---
 include/boost/static_string/static_string.hpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/boost/static_string/static_string.hpp b/include/boost/static_string/static_string.hpp
index a1dc125..4ac87b1 100644
--- a/include/boost/static_string/static_string.hpp
+++ b/include/boost/static_string/static_string.hpp
@@ -306,12 +306,16 @@ private:
   static constexpr const value_type null_{};
 };
 
+// This is only needed in C++14 and lower.
+// see http://eel.is/c++draft/depr.static.constexpr
+#ifndef BOOST_STATIC_STRING_CPP17
 template<typename CharT, typename Traits>
 constexpr
 const
 typename static_string_base<0, CharT, Traits>::value_type
 static_string_base<0, CharT, Traits>::
 null_;
+#endif
 
 template<typename CharT, typename Traits>
 BOOST_STATIC_STRING_CPP14_CONSTEXPR
@@ -477,7 +481,7 @@ count_digits(std::size_t value)
 // Ignore -Wformat-truncation, we know what 
 // we are doing here. The version check does 
 // not need to be extremely precise.
-#if defined(__GNUC__) && __GNUC__ > 4
+#if defined(__GNUC__) && __GNUC__ >= 7
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wformat-truncation"
 #endif
@@ -616,7 +620,7 @@ to_static_wstring_float_impl(long double value) noexcept
   return static_wstring<N>(buffer);
 }
 
-#if defined(__GNUC__) && __GNUC__ > 4
+#if defined(__GNUC__) && __GNUC__ >= 7
 #pragma GCC diagnostic pop
 #endif