Bug#1818: Perl perlconfig message
The Perl package sometimes produces a message about not having the
kernel headers installed, and having to run perlconfig later.
(a) This should be handled differently if the kernel source or headers
are to be installed: dpkg should defer configuring Perl if possible.
(b) This message should, if it turns out to be necessary, be
accompanied by a prompt, so that the user doesn't miss it.
I've reported this against dpkg because of (a), but when that's fixed
I'll reassign it to Perl because of (b).