$NetBSD: patch-ac,v 1.1 2007/09/20 20:47:03 wiz Exp $

--- src/boost/boost/config/platform/bsd.hpp.orig	2005-01-03 23:55:25.000000000 +0000
+++ src/boost/boost/config/platform/bsd.hpp
@@ -9,7 +9,7 @@
 
 //  generic BSD config options:
 
-#if !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__OpenBSD__)
+#if !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__OpenBSD__) && !defined(__DragonFly__)
 #error "This platform is not BSD"
 #endif
 
@@ -21,6 +21,10 @@
 #define BOOST_PLATFORM "OpenBSD " BOOST_STRINGIZE(__OpenBSD__)
 #endif
 
+#if defined(__DragonFly__)
+#define _REENTRANT 1
+#endif
+
 //
 // is this the correct version check?
 // FreeBSD has <nl_types.h> but does not
@@ -41,7 +45,14 @@
 //
 // No wide character support in the BSD header files:
 //
+#if !((defined(__FreeBSD__) && (__FreeBSD__ >= 5))) && !defined(__DragonFly__)
 #define BOOST_NO_CWCHAR
+#endif
+
+#ifdef __DragonFly__
+#define WCHAR_MIN INT_MIN
+#define WCHAR_MAX INT_MAX
+#endif
 
 //
 // The BSD <ctype.h> has macros only, no functions: