Hi Ken, I think you need to have built netCDF with the proper CFLAGS option for position-independent code, maybe -fPIC. Why R requires this, I'm not sure, but evidently the static netCDF library you have won't work for R. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: XLI-953526 Department: Support netCDF Priority: High Status: Closed