possibly acceptable workaround for rlm_perl/dlopen problem on Debian

[Enrik Berkhan]

Alan DeKok schrieb:
>   The new code is in the configure script.  I just did:
> 
> edit configure.in
> re-configure
> commit configure*
> 
>   rather than
> 
> edit configure.in
> commit
> re-configure
> commit configure

Ah, ok, mea culpa. I was mislead because the new code does not output
the usual "checking blabla" message.

Enrik