rlm_perl - Debian sarge

[Graeme Hinchliffe]

Hi,
	I have written a module for use with freeRADIUS which seems to work  
fine and dandy on my desktop Fedora box.  However when I drop this  
module and config on one of the production (and now test) Debian  
Sarge boxes running the same initial config with same version of  
freeRADIUS I get :

/usr/sbin/freeradius: relocation error: /usr/lib/perl5/auto/DBI/ 
DBI.so: undefined symbol: Perl_Gthr_key_ptr

and freeRADIUS obvioulsy refuses to start.

I have googled this and it seems to be a fairly common error with  
perl, alas I cannot see anything to help resolve this, so I am asking  
here in the hope that someone else may have thwarted this pain.  I  
have checked and perl supports multi and threaded ..

libperl-dev

did not sort it ..

any other suggestions ?  please ? :) (that don't involve installing  
Fedora on there.. tho that is getting more and more tempting)

Graeme