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

[Dan Kegel]

> Turns out he's trying to build an x86_64 on
> an x86_64 system that is running a 32 bit OS [Debian].
> config.guess reports
>   x86_64-unknown-linux-gnu.
> Perhaps that made configure think this wasn't a
> cross-build.  Replacing crosstool's config.guess with
>  echo i686-pc-linux-gnu
> is probably a valid workaround.
> I'm trying it now on Martin's machine

I got lucky; hacking crosstool/config.guess to
output the right string did indeed make the problem go away.

Oddly, on my fresh ubuntu 32 bit x86_64 system,
config.guess outputs
 i686-pc-linux-gnulibc1
yikes, what's that gnulibc1 suffix?   That's wrong!

Looks like config.guess has two bugs!
- Dan

--
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