Re: split-height-threshold?

[Richard M. Stallman]

    It's compared to windw_height(window) and should thus be expressed in number
    of lines, but its default value of 500 is then basically equivalent to
    most-positive-fixnum.  I.e. "never split".  Was that really the intention?

I think so.  This large value means, in effect, "Don't split a window
unless it is the whole frame."

However, it is ugly and not 100% reliable to use 500 to mean that.
In theory, someone might have a frame more than 500 lines tall.  It
would be cleaner to use the largest positive fixnum, or perhaps define
nil to have this meaning and use nil.