make buildworld fails in gperf

[Claus Guttesen]

Replying to my self:

> I did a make world and kernel after gcc 4.2 was imported and rebooted.
> When I try make buildworld after that I get (hand transcribed):
>
> undefined reference to '_Unwind_Resume'
> *** Error code 1

Did a clean install and had no errors.

-- 
regards
Claus

When lenity and cruelty play for a kingdom,
the gentlest gamester is the soonest winner.

Shakespeare