+/* Location of ssh-keysign for hostbased authentication */
+#ifndef _PATH_SSH_KEY_SIGN
+#define _PATH_SSH_KEY_SIGN "/usr/libexec/ssh-keysign"
+#endif
+
+/* xauth for X11 forwarding */
+#ifndef _PATH_XAUTH
+#define _PATH_XAUTH "/usr/X11R6/bin/xauth"
+#endif
+
+/* UNIX domain socket for X11 server; displaynum will replace %u */
+#ifndef _PATH_UNIX_X
+#define _PATH_UNIX_X "/tmp/.X11-unix/X%u"
+#endif
+