$OpenBSD: patch-src_common_common_h,v 1.2 2013/05/16 10:10:35 kirby Exp $
--- src/common/common.h.orig	Tue Apr 24 09:04:43 2012
+++ src/common/common.h	Sat Mar 23 21:37:28 2013
@@ -51,8 +51,20 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 #    define SO_EXT "so"
 #  endif
 
-#elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
+#elif defined(__FreeBSD__)
 #  define BUILDSTRING_OS "FreeBSD"
+#  ifndef SO_EXT
+#    define SO_EXT "so"
+#  endif
+
+#elif defined(__OpenBSD__)
+#  define BUILDSTRING_OS "OpenBSD"
+#  ifndef SO_EXT
+#    define SO_EXT "so"
+#  endif
+
+#elif defined(__NetBSD__)
+#  define BUILDSTRING_OS "NetBSD"
 #  ifndef SO_EXT
 #    define SO_EXT "so"
 #  endif
