Hi all, I'm having trouble with the above compiler when linking to MPI libraries which have been compiled with g77. I think I have traced back the problem to the way g77 treats object names with underscores. If you have a program that calls, say, mpi_send(), the f95 compiler will just append one underscore to the name in the object file: mpi_send_ ; but g77 would add two, because for some reason (compatibility with f2c it seems) any name which already has underscores in it will get 2 underscores appended, instead of one. Has anyone experienced this? Has Lahey been notified already? If not, I'll send them a more detailed description of the problem. Jose -- Jose L Marin [log in to unmask] Dept of Mathematics [log in to unmask] Heriot-Watt University Edinburgh EH14 4AS, U.K. Phone: +44 131 451 3717 Fax: +44 131 451 3249 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%