On Aug 30, 2012, at 11:19 AM, Federico Calboli <[email protected]> wrote:

> On 22 Aug 2012, at 15:12, Simon Urbanek <[email protected]> wrote:
> 
>> 
>> On Aug 22, 2012, at 6:34 AM, Federico Calboli <[email protected]> 
>> wrote:
>> 
>>> Hi,
>>> 
>>> I used to be able to use the Fortran binaries provided by Simon for both R 
>>> and Julia, but alas this will not be possible anymore:
>>> 
>>> "The problem is not BLAS, but your version of gfortran. Mac provides a 
>>> built-in system blas, so it is not required to build our own. However, 
>>> "checking for Fortran 77 name-mangling scheme... unknown" is a problem. It 
>>> appears that the R version of gfortran is too old to build arpack (a quick 
>>> google search reveals that gfortran older than 4.4 won't build code 
>>> properly on 64 bit -- yours is 4.2.3) ."
>>> 
>>> I could install the GFortran from here: 
>>> http://gcc.gnu.org/wiki/GFortranBinaries#MacOS. but (1) they will overwrite 
>>> /usr/local/bin/gfortran (with a symlink) and (2) I don't know if it will 
>>> work for R.
>>> 
>>> So, will the GCC binary work for R, or is it going to be utter PITA?  I'm 
>>> on 10.8, Xcode 4.4.1 + CLI add-ons and all the other bells and whistles.
>>> 
>> 
>> They won't work with CRAN R binaries because they don't use Apple 
>> driver-drivers (i.e. they don't support -arch etc.)*. If you compile R from 
>> sources, you can use any Fortran binary you want - it will be tied to your 
>> particular runtime (and you can't use -arch).
> 
> I use the CRAN R binary and CRAN binary packages
>> 
>> BTW: The FSF Fortran installs in /usr/local/gfortran so it can peacefully 
>> co-exist with out CRAN Fortran -- even in our Fortran gfortran is just a 
>> symlink to gfortran-4.2 so you can easily restore it with
>> sudo ls -sfn gfortran-4.2 /usr/local/bin/gfortran
>> if you wish.
> 
> Given the above, can I leave gfortran to point to the GCC fortran?

Not for CRAN binary unless you do sed 's:gfortran -arch:gfortran-4.2 -arch:g' 
on both Makeconf files ...


>  if I do not, julia throws a hissy fit every time I compile it,

Can't you just set FC and F77 to gfortran-4.2 when configuring Julia?


> though I use and need R *much more than julia*, so I'd like to avoid R 
> binaries of any sort having a hissy fit if gfortran points to something else 
> than gfortran-4.2.  Between R and julia I'm with R.
> 

Binaries will be fine, but compiling won't work (because FSF gfortran doesn't 
understand Apple flags).

Cheers,
Simon



> Cheers
> 
> Federico
> 
> 
> 
>> Cheers,
>> Simon
>> 
>> --- for advanced users only - if you have no idea what I'm talking about, 
>> don't do it ---
>> 
>> * - in theory you can use the Apple driver-driver of our Fortran to drive 
>> FSF-build Fortran. For example if you take the CRAN Fortran then renaming 
>> your FSF Fortran to i686-apple-darwin8-gfortran-4.2 and putting our driver 
>> instead of gfortran then you may have some luck using CRAN R with your FSF 
>> Fortran (obviously, -arch ppc won't work but fewer people care now ;)). 
>> There are some potential issues, though, for example the FSF binaries use 
>> purely dynamic setup so anything you compile can only be used on your 
>> machine. Also in theory you can have runtime version mismatch issues (two 
>> different versions of gfortran and gcc runtimes) - so your mileage may vary.
>> 
>> 
>>> BW
>>> 
>>> F
>>> 
>>> 
>>> 
>>> --
>>> Federico C. F. Calboli
>>> Neuroepidemiology and Ageing Research
>>> Imperial College, St. Mary's Campus
>>> Norfolk Place, London W2 1PG
>>> 
>>> Tel +44 (0)20 75941602   Fax +44 (0)20 75943193
>>> 
>>> f.calboli [.a.t] imperial.ac.uk
>>> f.calboli [.a.t] gmail.com
>>> 
>>> _______________________________________________
>>> R-SIG-Mac mailing list
>>> [email protected]
>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>> 
>>> 
>> 
> 
> --
> Federico C. F. Calboli
> Neuroepidemiology and Ageing Research
> Imperial College, St. Mary's Campus
> Norfolk Place, London W2 1PG
> 
> Tel +44 (0)20 75941602   Fax +44 (0)20 75943193
> 
> f.calboli [.a.t] imperial.ac.uk
> f.calboli [.a.t] gmail.com
> 
> 

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