Re: configure: error: cannot compute sizeof (long double), 77

["Martin J. Bligh" <mbligh at google dot com>]

Mike Frysinger wrote:

> On Wednesday 25 January 2006 21:12, Martin Bligh wrote:
>  
>
> > I took a *very* brief look at config.guess. Isn't it fundamentally
> > flawed for what you want in that it's trying to work out the
> > architecture of the running kernel, and what you want to know is the
> > architecture of userspace?
> >    
>
> it does what it does and that's that
>  
Umm. Not sure what that's meant to mean. It would seem that either what 
it's trying to determine isn't what you want to know, or there's a bug 
in it. Or are you saying that the answer we wanted in this circumstance 
really was x86_64, and the bug is in configure / crosstool, etc ?

> this is why you can override it with --build/--host/--target configure options
>  

What *exactly* is the thing we're trying to determine here? Presumably 
the "host" architecture? And does that mean the physical chip, or the 
userspace you're running in, or what kind of executables the currently 
running kernel will support?

In which case, I would think that in the enviroment I was running it in, 
either x86_64 or ia32 would have worked, with "the same as the rest of 
userspace" being the obvious choice, no?

Still, it does strike me that either ia32 or x86_64 should have worked, 
so I'm not sure why configure blew up still.

"You can override it" seems like a poor option to me - crosstool is 
intimidating for new users, and it would be nice if it either gave a 
clear error or just worked out of the box. The current failure is a 
little cryptic - if even Dan doesn't know what it means off the top of 
his head, that seems like a bad sign to me ;-)

M.

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