If your package contains RISC OS outline fonts, you may wish to include
a font message file so that the font manager doesn't spend time scanning
your package for fonts. However, if you allow partial installation of your
fonts, you must be careful that the message file reflects the fonts that are
actually installed.
Probably the simplest approach to this problem is to place each part of
the partial installation into separate sub-directories in your package.
Then you can provide a message file for each sub-directory.
Unfortunately, this approach will lead to longer path variables
(see section
).