On Nov 23 2010, Hal Finkel wrote:

So the Fortran situation is a bit tricky ;) Fortran does have a conditional combilation scheme, which is not often used (implemented), and many Fortran compilers (instead) support a C-like preprocessing scheme, which I believe is not standard.

And is problematic. And the formal mechanism may well be dropped by WG5 at some stage.

So Fortran support might look something like this:

I suggest just omitting it. It isn't the only thing that has no equivalent for all languages. Regards, Nick Maclaren.