> Steve, > > I tried first only taking out the -Mstandard flag but still got the error. > Adding the -lg2c flag fixed things. > > --Steve > > Steve, According to PGI, ther -g77libs flag to pgf90 was supposed to handle the -lg2c if libg2c.a was found when the PG compiler environment was installed. At any rate, yes, the -lg2c is the g77 library extensions! Thanks for letting me know that you were able to get your problem resolved. Steve Chiswell Unidata User Support Ticket Details =================== Ticket ID: WFE-503351 Department: Support GEMPAK Priority: Normal Status: Closed