6136 sysmacros.h unnecessarily polutes the namespace

@@ -16,10 +16,12 @@
 SM_RCSID("@(#)$Id: util.c,v 8.416 2009/12/18 17:05:26 ca Exp $")
 
 #include <sm/sendmail.h>
 #include <sysexits.h>
 #include <sm/xtrap.h>
+#include <sys/types.h>
+#include <sys/mkdev.h>
 
 /*
 **  NEWSTR -- Create a copy of a C string
 **
 **      Parameters: