The file nc.h is not intended to be public, which is why it is not installed along side netcdf.h. So, the question is: what information does nccmp need from nc.h; there may be an alternate way to get it. You will need to ask the nccmp developers about this. =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: XJC-315392 Department: Support netCDF Priority: Normal Status: Closed