Malcolm-
I think this might be the first problem - gcc-3 has reputedly made some significant changes over gcc-2, and I'm not sure of the effect such changes might have underneath nhc98. ... Do you have any possibility of using gcc-2.9x instead of gcc-3?
I tried again using gcc-2.95 and got exactly the same results. The system() prototype had to be modified (as before) and the build failed at first use of "nhc98" with the "What, run() returned!" messages. I have sucessfully used both versions of gcc to build other execuatebles on this machine under IRIX6.5 so I don't think I have an underlying compiler problem. If there anything I can do on my end to provide some better information about the cause of the problem, I'd be glad to help tinker around with the sources. Thanks for the help! Jim ------------------------------------------------------------------------------- Jim Callahan jim@polaris.net, jimcal@xtra.co.nz -------------------------------------------------------------------------------