RE: Where is the function that adds the 'message text property in compilation buffers?

[Drew Adams]

> Can someone please tell me that. I can't find it ;-)

Did you look? in compile.el?

I see this in `compilation-compat-parse-errors', just by searching for
"'message":

(put-text-property src (line-end-position)
                             'message (list loc 2))

There might be additional locations.  I just looked quickly.