diff -ruN addpasswd.cxx.old addpasswd.cxx
--- addpasswd.cxx.old	2006-04-14 09:56:19.000000000 -0400
+++ addpasswd.cxx	2008-01-05 21:55:43.000000000 -0500
@@ -16,6 +16,7 @@
 
 #include <algorithm>
 #include <ptlib.h>
+#include <ptlib/pprocess.h>
 #include <ptclib/cypher.h>
 
 class Client : public PProcess