Hi,

It would be nice if the specified mode in (compilation-start) would get 
activated before inserting anything (i.e. the mode setter line) into the 
buffer.

In a function which I added to compilation-mode-hook I change some 
fontification things including the used font.  When (compilation-start) 
is called using compilation-mode as mode, my function gets called using 
(funcall mode).  However this happens a few lines too late, because the 
mode setter has already been inserted into the buffer, and so it is not 
displayed using my font (see attached screen shot).

Kind regards,
Markus