Hi, We are porting some software from HP-UX to RedHat Enterprise. While using HP UX, we were able to successfully dereference NULL pointers by using the "-Z" option while compiling using aCC/gcc. But this option does not exist on gnu ld (version: GNU ld version 2.14.90.0.4 20030523). We were wondering if there was a similar option that would enable us to successfully dereference NULL pointers without crashing the code on Redhat Linux (version: Enterprise 3.1). Thanks. Periklis Beltas