changing build dependencies in a distribution from g77 to gfortran

[FX Coudert]

> And just to make your life even more miserable, there will be ABI  
> breakage in libgfortran in the not too far future. IIRC 4.2 bumped  
> the so version from 4.1, and it will probably happen again for 4.3.

It already happened.

> Another thing you might want to consider is that now that you're  
> providing a Fortran 95 compiler, presumably other developers will  
> want to add F95 libraries that provide module files (say, the F90  
> interface to netcdf, lapack95 etc.). Coming up with a policy for  
> these .mod files (where should they go?) might be easier now than a  
> few years later when you have a few dozen libraries doing it their  
> own way. IIRC the default is to put them into the normal include  
> directories

Nope. The module files for the standard headers (including Fortran  
standard headers and the OpenMP module) was decided to be ${prefix}/ 
lib/gcc/${target-triplet}/${version}/${multilib}/finclude because it  
depends on both the target, GCC version and multilib settings.

Now, I agree with Jane: while you don't want to put any other headers  
in there, you need to come up with something :)

FX