make buildworld fails in gperf

Hi.

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

Stop in /usr/src/gnu/usr.bin/gperf
*** Error code 1
Stop in /usr/src

The pre-gcc-4.2 buildworld and buildworld completed and buildkernel as
well but buildworld did not complete.

I have removed gperf and done another csup from cvsup.no.freebsd.org
but same error.

-- 
regards
Claus

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

Shakespeare.