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

From: Ralf Corsepius
Subject: Re: How does one specify linking to 64 bit libraries when there is a choice?
Date: Mon, 20 Dec 2010 16:36:26 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc14 Thunderbird/3.1.7

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
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.


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