single precision fftw wanted

Stephen Montgomery-Smith stephen at
Fri Sep 3 05:43:07 PDT 2004

Lars Köller wrote:
> ----------
> In reply to Stephen Montgomery-Smith who wrote:
>>Dear Lars and ports,
>>I am interested in creating a port for gromacs ( 
>>and it requires fftw built using single precision.  The super-easy way 
>>is to create a port sfftw which is a copy of fftw with a line like
>>CONFIGURE_ARGS+=        --enable-float --enable-type-prefix
>>added in.  Or I could add some kind of option to fftw.  Anyway, since 
>>Lars is the maintainer of fftw I would like to coordinate with him about 
>>it.  And I am copying this to ports as well just in case anyone else has 
> Hi, I'm just back from holidays. I think if we have the requirement of 
> a single precision of another port, it is the only solution to make a 
> separate port.
> However, are the libraries separated, so it is possible to have both 
> installed?

Yes - if one builds fftw correctly, the only common files between single 
precision and double precision will be the docs.

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