Yes, it’s the Christmas holidays and I’m tinkering with Perl scripts that parse XML files and SQL databases. It was worth it, however, to discover that the circle is now complete: Emacs requires Perl.
Also awk, bash, cpio, ping, and sed, but hey, who doesn’t need those?
[Yes, that list is so basic that it would be surprising if a package didn’t end up pulling one of them in somewhere down the dependency chain, but Emacs is a Lisp interpreter with delusions of godhood, built around text processing; why would it want Perl? Turns out there’s exactly one Perl script in the distribution, packaged up in emacs-common: /usr/bin/grep-changelog]