Restrict gcc pragma to gcc-4.0 and later.

[SVN r79286]
2012-07-05 15:46:18 +00:00
parent 960c85dedc
commit 9903a5539d
1 changed files with 1 additions and 1 deletions
--- a/include/boost/type_traits/is_virtual_base_of.hpp
+++ b/include/boost/type_traits/is_virtual_base_of.hpp
@ -23,7 +23,7 @@ namespace detail {
 #ifdef BOOST_MSVC
 #pragma warning( push )
 #pragma warning( disable : 4584 4250)
-#elif defined __GNUC__
+#elif defined(__GNUC__) && (__GNUC__ >= 4)
 #pragma GCC system_header
 #endif