diff --git a/src/modules/files/acconfig.h b/src/modules/files/acconfig.h
index b203e40dd68ac34c7e9a66e144398cf4acc421e9..ce263d8ce72848bb91da969977a5c39a57e70c65 100644
--- a/src/modules/files/acconfig.h
+++ b/src/modules/files/acconfig.h
@@ -1,5 +1,5 @@
 /*
- * $Id: acconfig.h,v 1.6 1998/01/08 17:21:14 hubbe Exp $
+ * $Id: acconfig.h,v 1.7 1998/01/29 23:52:27 grubba Exp $
  */
 
 #ifndef FILE_MACHINE_H
@@ -38,6 +38,9 @@
 /* Do we have socketpair() ? */
 #undef HAVE_SOCKETPAIR
 
+/* Does select() work together with shutdown() on UNIX sockets? */
+#undef UNIX_SOCKETS_WORKS_WITH_SHUTDOWN
+
 /* Buffer size to use on open sockets */
 #undef SOCKET_BUFFER_MAX