RFC: reducing wasted disk space from addon files

[Vincent Povirk]

> --Simply installing .msi files to those locations is the easiest for me to package, and at least under the present system, has the advantage of working regardless of where Wine and the wineprefixes are installed.
> --Our WineHQ packages install Wine to /opt/wine-stable, /opt/wine-devel, and /opt/wine-staging, and all three branches can be installed side by side. Please do not set up a situation that will require separate wine-stable-mono, wine-stable-gecko, wine-devel-mono, wine-devel-gecko, wine-staging-mono, and wine-staging-gecko packages.

I'm surprised this works. I'd have expected the actual msi search path
to be relative to the wine install.

Whatever the current search paths are, I can use something analogous.

> And my personal comments as a user:
> --I have a separate /wine partition for all of my wineprefixes.
> --I still use EXT4 for all my partitions and have no intention of changing.

I won't implement a solution that doesn't work with multiple wine
installations, or adds a filesystem requirement.