Index: /trunk/src/VBox/NetworkServices/NAT/pxtcp.c
===================================================================
--- /trunk/src/VBox/NetworkServices/NAT/pxtcp.c	(revision 51680)
+++ /trunk/src/VBox/NetworkServices/NAT/pxtcp.c	(revision 51681)
@@ -50,5 +50,5 @@
  * since SHUT_RD is 0, we can't use 0 for "none", unfortunately.
  */
-#if defined(RT_OS_NETBSD)
+#if defined(RT_OS_NETBSD) || defined(RT_OS_SOLARIS)
 # define HAVE_TCP_POLLHUP 0                     /* not reported */
 #elif defined(RT_OS_DARWIN)