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To: gentoo-dev-announce@g.o, gentoo-science@g.o
From: justin <jlec@g.o>
Subject: Re: [gentoo-dev-announce] Fortran-2.eclass
Date: Tue, 21 Jun 2011 16:10:16 +0200
On 21/06/11 08:59, justin wrote:
> Hello,
> 
> We just included an eclass to simplify the fortran compiler dependency
> and testing in ebuilds.
> 
> For the simplest case, which is most probably the way you want it,
> simply add "fortran-2" to you inherit line. The only phase function
> exported is pkg_setup, so take care to add "fortran-2_pkg_setup" in case
> you redefined pkg_setup.
> 
> This will depend on a fortran compiler and check additionally for
> general compiler functionality.
> 
> Two specialist cases are support.
> 
> First, you need openmp support from the fortran compiler, then simply
> define "FORTRAN_NEED_OPENMP=1".
> 
> Second, you need a different fortran dialect. Normally this can be
> identified, if the source files have different suffixes then .f e.g. .f90.
> Simply define FORTRAN_STANDARD with the dialects you need.
> Currently supported are the dialects from 77, 90, 95 and 03. 08 is
> currently not, due to the lack of a working compiler.
> 
> I hope this will fix the problems due to missing fortran compilers.
> 
> justin
> 

UPDATE:

You need to add virtual/fortran to your dependencies. I just removed the
unconditional dependency from the eclass, in order to allow conditional
fortran support in the ebuilds.

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-- justin
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Updated Jul 05, 2012

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