Graham, > Thanks for the quick response. Sorry I couldn't get to it sooner. > > The grep command returns nothing. I checked the file itself but that variable is not in the netcdf.h file. The netCDF software was installed by someone last October and is version 3.6.1 - hope this helps. Then the netCDF installation is bad. That macro should be in the installed file "netcdf.h". I suggest redoing the netCDF installation and trying again. Regards, Steve Emmerson Ticket Details =================== Ticket ID: WPU-615012 Department: Support netCDF Perl Priority: Normal Status: Closed