--- ACE/ACE_wrappers/ace/config-freebsd-pthread.h.orig	Mon Apr 10 13:55:24 2000
+++ ACE/ACE_wrappers/ace/config-freebsd-pthread.h	Mon Apr 10 13:56:09 2000
@@ -44,7 +44,6 @@
 #define ACE_HAS_NONCONST_SELECT_TIMEVAL
 #define ACE_HAS_CHARPTR_DL
 //#define ACE_USES_ASM_SYMBOL_IN_DLSYM
-#define ACE_LACKS_SIGSET
 #define ACE_NEEDS_SCHED_H
 
 // Use of <malloc.h> is deprecated.
@@ -84,6 +83,15 @@
 #if (__FreeBSD_version >= 300000)
 #define ACE_HAS_SIGINFO_T
 #endif /* __FreeBSD_version >= 300000 */
+
+#if (__FreeBSD_version < 400000)
+#define ACE_LACKS_SIGSET
+#endif /* __FreeBSD_version < 400000 */
+
+#if (__FreeBSD_version >= 400000)
+#define ACE_HAS_UCONTEXT_T
+#define ACE_HAS_SOCKLEN_T
+#endif /* __FreeBSD_version >= 400000 */
 
 #define ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES
 #define ACE_LACKS_SIGINFO_H