--- groups.cxx.~1~	Thu Sep 24 22:42:27 1998
+++ groups.cxx	Tue Apr 27 23:00:25 1999
@@ -18,6 +18,7 @@
 #include <config.h>
 #endif
 #include <stdio.h>
+#include <sys/param.h>
 #include <grp.h>
 
 void   main()