$OpenBSD: patch-include_ptbuildopts_h_in,v 1.1.1.1 2010/03/23 21:10:17 ajacoutot Exp $
--- include/ptbuildopts.h.in.orig	Wed Jul  8 14:07:05 2009
+++ include/ptbuildopts.h.in	Wed Jul  8 14:07:33 2009
@@ -146,7 +146,11 @@
 #undef P_HAS_STL_STREAMS
 #undef P_HAS_ATOMIC_INT
 #undef P_HAS_RECURSIVE_MUTEX
-#undef P_NEEDS_GNU_CXX_NAMESPACE
+#if defined(__GNUC__) && __GNUC__ >= 4
+#define P_NEEDS_GNU_CXX_NAMESPACE 1
+#else
+#define P_NEEDS_GNU_CXX_NAMESPACE 0
+#endif
 #undef PMEMORY_CHECK
 #undef P_HAS_RECVMSG
 #undef P_HAS_UPAD128_T