[rt-devel] Reason for code overlays

[Florian Weimer]

I have some issues with the code overlay mechanism.  We run a slightly
modified version of RT3 with just a few added/changed/deleted lines.  I
don't think it's a good idea to copy the surrounding subroutines to an
overlay file and change it there.  If the original changed during an RT
upgrade, we'd override these changes.

Am I missing something, or is the overlay mechanism mainly for those who
haven't yet discovered version control software? 8-)