Re: How does one specify linking to 64 bit libraries when there is a choice?

[Ralf Corsepius]

On 12/20/2010 04:05 PM, Eric Blake wrote:
> On 12/20/2010 07:59 AM, Bruce Korb wrote:
> > Hi Andy, Ralf, et al.,
> >
> > On Mon, Dec 20, 2010 at 6:23 AM, Andy Wingo<address@hidden>  wrote:
> > > >    How much understanding of the machinery should be expected
> > > >    of the hapless project builder?
> > >
> > > I'm not sure, but: .....
> >
> > I am sure of this:  It needs to be minimized.  If there are insurmountable
> > problems in figuring out that the lib directory is /usr/lib64,
> > then the builder has to supply it. I really doubt it is that hard to
> > figure out though.
>
> If a distro insists on shipping 64-bit libraries under /usr/lib64, then
> it would be in the distro's best interest to also ship a config.site
> variable that defaults --libdir to the appropriate /usr/lib64 location.

This isn't of much help on multi-arched architectures (such as 
Fedora/RHEL x86_64 systems), because any such default would only match 
to one of its supported architectures and be wrong on all others.

Ralf