Hi Paolo, If you use gcc for the C compiler and pgf90 for the Fortran compiler, you need to define the following environment variable before runing the configure script (after "make clean"): CPPFLAGS=-DpgiFortran Alternatively, you could use pgcc instead of gcc with pgf90 by specifying CC=pgcc as for example is described here: http://www.unidata.ucar.edu/software/netcdf/docs/other-builds.html#pg6 --Russ --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: IZU-330541 Department: Support netCDF Priority: Normal Status: Closed