Re: Underlining in compile.el

[Richard M. Stallman]

    If compile and grep buffers had full-line links, the links would be easier
    to access, they would help with visual alignment (like using a ruler in a
    parts catalog), and there would be no need to underline them.

I see.  However, we don't want mouse-1 to be active on the whole line,
for other reasons.  I think the current set of places where mouse-1 is
active is the right set.  The question that remains is only whether
to underline those places.