[R] Building packages with subroutine in fortran 90 under windows xp

[Cinzia Viroli]

Hello,

I work under windows xp and I am trying to build a R package with a subroutine written in fortran 90. 
I have installed all the updated tools and I am working with R-2.4.0 or R-2.5.0. 

When I check a package with a subroutine in fortran 77 (and extension f) everything is ok. 
When I try to build the same package with a subroutine in fortran 90 (with extension f90) the following warning appears:

Subdirectory 'src' contains no source files

and the package can not be built. 

The funny thing is that I have successfully built the same package with fortran 90 last March and everything was good. 

I can not imagine what is the problem, can anyone help me?
Thank you in advance,
best,
Cinzia





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Cinzia Viroli
Dipartimento di Scienze Statistiche "Paolo Fortunati" 
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40126 Bologna 
Italy
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home: www2.stat.unibo.it/viroli