libstdc++ bootstrap failures on sparc-sun-solaris2.8 (analyzed)

[Benjamin Kosnik]

> 	Yes and yes (:^).  At what point do you want to test for 32x64?
> How do you want to implement copying std_limits.h?  Do you want 32x64 to
> set the existing cross-compiling flag for that one operation or have its
> own similar machinery?

I think what should be done is that all multilibs and crosses get the 
generic bits, period. There's no sense making this any more complicated 
than it already is.

-benjamin