Re: eigs and ARPACK

[Ben Abbott]

On Jan 3, 2009, at 3:30 PM, Thomas Treichl wrote:

> Ben Abbott schrieb:
> > Any chance you tried gfortran?
>
> I found precompiled binaries of g95 at http://www.g95.org under "G95  
> Binaries and Source (Stable version 0.91, March 2008)" for PPC and  
> i386. These binaries should work with MacOSX 10.4.x gcc 4.0.1 and  
> later. It should be possible to set up these binaries for both  
> platforms instead of fort77/f2c for Octave.app in the future beside  
> the rest of GCC that comes with Apple's XCode tools.
>
> Another idea would be, to tell users to set up the GCC suite that is  
> available from the good folks of the R-Project, cf. http://r.research.att.com/tools/ 
>  instead of Apple's XCode tools. There a gfortran compiler is  
> included. A long while ago I tried this suite and I have to say that  
> it works very well (means 'no' to your question, I haven't tried it  
> yet).
>
> In either case this also would mean to rewrite the build scripts for  
> building and packing Octave.app and I don't know how much time I can  
> spend for doing all this on my own and if somebody wants to help me  
> with this then this would really be a great thing!
>
> Best regards,
>
>  Thomas

There are some special instances where problems are manifested when  
mixing object code compiled with different versions of gcc. For Fink  
this is a particularly annoying problem.

It has been about a year since I looked at what was being done for  
Fink. However, at the present time Fink does use gfortran to build  
octave 3.0.x.

In any event, soon I'll have to try prodding one of the Fink experts  
to put together a package for ARPACK (if octave doesn't include it).

Ben