[Dovecot] pop3-login no longer segfaults with gcc4.5.2 and gold :)

[interfaSys sàrl]

Hello,

I reported a while back that it wasn't possible to compile the whole of
Dovecot using gcc 4.5.2 and the new gold linker, but it's now working
with recent snapshots of both binutils and GCC.

Cheers,

Olivier