bug#20628: 25.0.50; Incorrect line height for some fonts

[Werner LEMBERG]

> A better alternative would be to detect such tall glyphs when they are
> needed for display, and enlarge the line height only then.

Yep.

> But I don't yet see the data of these glyphs that could tell us to
> do that, any help will be appreciated.

Have you seen my message w.r.t. the `ascent' and `descent' fields in
the `font_metrics' structure of Emacs?  Does this help?


    Werner