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On Mon, 12 Sep 2005, Norman Gray wrote: > Folks, > > On 2005 Sep 12 , at 10.37, Peter W. Draper wrote: > > >> Thanks. Should I be worried by the report > >> > >> configure: WARNING: Use AC_PROG_FC with AC_PROG_FPP, instead of > >> AC_PROG_F77 > >> > >> when configuring CAT? > >> > > > > No. There was some discussion about this error message a little while > > back. I seem to remember the conclusion is that it's transistory. > > The FPP macros are really designed to work with autoconf's FC interface, > rather than its older F77 interface. The difference is that the F77 > interface is for Fortran 77 alone, whereas the FC interface is for all > 57 varieties, plus there's a not-quite duplication of the > implementations which I think would make supporting both probably a good > deal more work. So, the FC interface _should_ be able to support > Fortran 77 code, either immediately, or if necessary by providing > [Fortran 77] as the AC_PROG_FC second argument (with an empty [] first > argument). > > I remember, however, that Peter uncovered some f77/f9x troubles with the > FC interface -- yup: [1] It's something to do with libtool tags, and > libtool not completely supporting f9x yet; I'm getting a flashback. > Argh. Ow. > > Peter, could you bear to revisit this at some point? I spent quite a > lot of time yesterday with the autotools dev branch, trying to reconcile > the code, the documentation and the tests, prior to having a > pseudo-release onto our mainline and to Toby's colleagues, then > submitting this to the autoconf and automake patch lists. I'd hoped to > knock it off yesterday, but It's not yet quite done (the docs and the > implementation had drifted apart more than I'd thought); I aspire to > finish that today. Hi Norman, wwwhay... > There's talk on the Libtool list of trying really hard to get out a > much-delayed version 2.0 soon, and there's a consequent feature freeze. > Unfortunately, since I haven't seen any mention of the Fortran patches > mentioned in [1], my guess is that Libtool f9x support will be limited. Just downloaded the latest 2.0 tar ball and it seems to have support for F77 and FC in it (side-by-side!). No idea when it appeared as there's no log information. Anyway I guess this is just now a wait and see problem (it may be possible to get rid of the messages simply by configuring libtool with F77 set to $FC, as the rest of the tree uses FC and once libtool has the right tag setup, it should be happy). Cheers, Peter.