Link tests after GCC_NO_EXECUTABLES

[Mark Mitchell]

Rask Ingemann Lambertsen wrote:

> 1) Make the cached link test results require an explicit option to enable
> them. I can code that up tomorrow.
> 2) Put in the libstdc++ patch.
> 3) Revert the top level changes for the -B and -L options.
> 
>    Does this sound safe enough?

Yes, I think that's a good plan.  That gives the cached link tests as an
experimental path forward for people who want to try it, but otherwise
gets us back to the status quo ante.

Thank you,

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
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