portconfigure.tcl - why does appending to an ENV variable (like CFLAGS) not also append to configure.cflags ?

[Ryan Schmidt]

On Nov 6, 2018, at 14:48, Ken Cunningham wrote:

> I noticed this recently "fixing" some ports that don't use a configure step.
> 
> During the run of portconfigure.tcl, various things (sdkroot) might be tested, and the appropriate values appended to the ENV variables.
> 
> But these things don't seem to come out in the configure.variables, like I would have expected them to.
> 
> Is this desired behaviour? 
> 
> Or should portconfigure flesh out the configure.variables at the same time as it's appending to the ENV variables (like I would have expected)?
> 
> (Please tell me I'm missing some well-known step that everyone else knows about but I don't :> )

Can you give a specific example?