Andreas, I'm afraid that the Fortran-90 interface of the netCDF package cannot be built on a NEC SX-5. The reason may be found at http://www.unidata.ucar.edu/glimpse/netcdf/4473 In fact, the entire email exchange may be useful to you. Search for "200111300742.fAU7gvN29708" on the netCDF support-email archive page at http://www.unidata.ucar.edu/glimpsedocs/ghnetcdf.html If you want to try the solution outlined in the first URL above, then let me know and I'll try to help. Regards, Steve Emmerson <http://www.unidata.ucar.edu>