On 03 Aug 2015, at 15:10 , Berend Hasselman <[email protected]> wrote:

> 
>> On 03-08-2015, at 13:59, peter dalgaard <[email protected]> wrote:
>> 
>> I have now tried doctoring $RHOME/etc/Makeconf to use a MacPorts build of 
>> gfortran-4.8 that I had lying around, and lo and behold: It does source 
>> installs of nleqslv, geigen, QZ, rms with no trouble at all.
>> 
> 
> Good to know that.
> 
>> So I think the finger is pointing at the binaries on r.research.att.com/libs.
> 
> Indeed as was confirmed by Simon last year here 
> https://stat.ethz.ch/pipermail/r-sig-mac/2014-May/010895.html
> I can use the binary of r.research.att.com/libs since I now have a more 
> modern Mac with an i5 cpu.
> 
> I did some searching and found the following:
> 
> http://coudert.name/software.html
> 
> and https://gcc.gnu.org/wiki/GFortranBinaries#MacOS
> 
> Might be a good idea to try these versions of gfortran too on a C2D.

Yes. However, I'll have to worry about overwriting and possibly breaking my 
build environment with 3.2.2 coming out next Friday (Simon's binary package 
rather carefully installs gfortran-4.8, but not gfortran, I believe. Won't know 
about the others until I try them.). So, not on this machine.

> Maybe the CRAN R could be built with one of these  gfortran binaries avoiding 
> the need to compile an R provided gfortran and distributed on 
> r.research.att.com/libs.

I haven't seen evidence that there is a problem with the CRAN binaries of 
anything and we still need to provide gfortran somehow for people who need to 
build from source. What we could try is to compile 4.8 on a C2D or 
cross-compile it for that architecture. I think that the latter is doable, but 
I don't recall the details (gcc --target ?).

-pd

> But that is beyond me and I have no idea about possible issues doing it.
> 
> Berend
> 

-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: [email protected]  Priv: [email protected]

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