[PATCH 1/2] Added a function to check if specific OS features are available

[Dirk Hohndel]

"Lubomir I. Ivanov" <neolit123 at gmail.com> writes:

> looks like a portion of my patch was lost when i was doing the
> UTF8_FONT_WITH_STARS / subsurface_os_feature_available() modification.
> will send the missing hunk in a minute.

Thanks - applied and pushed.

/D