commit 5003983029ac29693265e5d60566e28cf3847fea
author Dani-Hub <daniel.kruegler@googlemail.com> Sun Mar 08 18:48:24 2015 +0100
committer Christopher Dunn <cdunn2001@gmail.com> Sun Mar 08 13:07:27 2015 -0500
tree 60a0cb6e93c2661a345eedc955191c98d4269b3b
parent 871b311e7e8d2fe2bbdcc78ee04d8070349c048f

Make preprocessor query robust against older gcc versions

include/json/config.h

diff --git a/include/json/config.h b/include/json/config.h
index 5a2558d..0dcd8ae 100644
--- a/include/json/config.h
+++ b/include/json/config.h
@@ -70,8 +70,11 @@
 #if defined(_MSC_VER) && _MSC_VER >= 1500 // MSVC 2008
 /// Indicates that the following function is deprecated.
 #define JSONCPP_DEPRECATED(message) __declspec(deprecated(message))
-#elif (defined(__clang__) && __has_attribute(deprecated)) || \
-      (defined(__GNUC__) &&  (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)))
+#elif defined(__clang__) && defined(__has_feature)
+#if __has_feature(attribute_deprecated_with_message)
+#define JSONCPP_DEPRECATED(message)  __attribute__ ((deprecated(message)))
+#endif
+#elif defined(__GNUC__) &&  (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
 #define JSONCPP_DEPRECATED(message)  __attribute__ ((deprecated(message)))
 #elif defined(__GNUC__) &&  (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
 #define JSONCPP_DEPRECATED(message)  __attribute__((__deprecated__))