RE: gcc 4 <--> gcc 3

["Iain Morrison" <idm24 medschl cam ac uk>]

> -----Original Message-----
> From: nahant-list-bounces redhat com 
> [mailto:nahant-list-bounces redhat com] On Behalf Of Ed Greshko
> Sent: 06 September 2007 15:31
> To: Red Hat Enterprise Linux 4 (Nahant) Discussion List
> Subject: Re: gcc 4 <--> gcc 3
> 
> Iain Morrison wrote:
> > Dear all, we have recently needed to use gcc 4 [to compile 
> an R library].
> > Apologies if this is a FAQ but do we need to do anything else except
> 
> Normally all you'd need do is set an environment variable for 
> CC=/usr/bin/gcc4.

That doesn't seem to work [setting CXX=/usr/bin/g++4 as well didn't help either]. (However that may be a problem compiling from within R.)

thanks

iain

> 
> 
> > 
> > [ after an initial
> > 
> > cp -p /usr/bin/gcc /usr/bin/gcc3 cp -p /usr/bin/g++ /usr/bin/g++3 ]
> > 
> > 
> > 3 à 4
> > 
> > cp -p /usr/bin/gcc4 /usr/bin/gcc cp -p /usr/bin/g++4 /usr/bin/g++
> > 
> > 4 à 3
> > 
> > cp -p /usr/bin/gcc3 /usr/bin/gcc cp -p /usr/bin/g++3 /usr/bin/g++
> > 
> > Is it feasible to use gcc4 as the default compiler or 
> should we stick 
> > with the RHEL AS 4 U5 default? Is 3 still the RHEL 5 default?
> > 
> > thanks
> > 
> > iain
> > 
> > 
> > ----------------------------------------
> > 
> > Iain Morrison IT Manager MRC Epidemiology Unit Institute of 
> Metabolic 
> > Science Box 285 Addenbrooke's Hospital Hills Road Cambridge CB2 0QQ
> > 
> > Tel 01223 769200
> > 
> > 
> > -- nahant-list mailing list nahant-list redhat com 
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> 
> 
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