Re: GNU Make Extensions

[Bob Friesenhahn]

On Wed, 10 Dec 2008, Jan Engelhardt wrote:
> > I didn't really trust += in my own Automake makefiles since it was not really
> > clear to me in what order the appending would occur
>
> Would it matter? Except for use of := (which I think is non-portable
> too), expansion of ${variables} will happen at the latest possible
> time, long after += has been parsed (linearly top-down probably).

The "linearly top-down probably" bit is the part that I don't trust 
since in a complex project ordering can easily change.  Even if the 
term "probably" is removed, I prefer to be more explicit.

Bob
======================================
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/