Best way to override user's CFLAGS in a port?

[John Polstra]

On 07-Sep-2004 Charles Swiger wrote:
> Users would prefer the software to build properly, so yes, doing 
> something to switch -Ox to plain -O is better than marking the port 
> BROKEN.
> 
> I don't think that changing a specific flag in a port which needs to do 
> so is unreasonable, but I dislike the notion of second-guessing the 
> end-user.  The whole point of preserving CFLAGS set in /etc/make.conf 
> or via the environment is to make it easy for people to build all of 
> the software using whatever flags they want.

Agreed, but some user preferences (for example, "-g") are more
important than others (such as optimization levels).

> Can we help you fix the issues with ezm3 when compiled with -O2, rather 
> than figuring ways to hack CFLAGS...?

In the long run, probably yes.  At the moment I'm just trying to
staunch the flow of bug reports for this thing.

John