Peter, On 2004 Jul 14 , at 19.35, Peter W. Draper wrote: > The Solaris f77 will preprocess, but only if the extension is .F, using > .fpp is seen as an error. So I'm attempting to get configure to use the > Solaris fpp command directly (in fact I think it discovered that this > what is should probably be using itself), but it always says (after > rejecting f77 as a possible fpp): I think this is related to the problem Toby White ([log in to unmask] of a message a couple of days ago) was having, in struggling with the fortran.m4 macros -- some compilers seem to have ferociously fixed ideas about what files are called. I think you'll need to leave this one with me. I'll work through Toby's modifications to fortran.m4 and see if I can find any enlightenment. Norman -- ---------------------------------------------------------------------- Norman Gray : Physics & Astronomy, Glasgow University, UK http://www.astro.gla.ac.uk/users/norman/ : www.starlink.ac.uk