respect CFLAGS: should I override optimizations?

[Oliver Eikemeier]

Roman Neuhauser wrote:
> [...]
> 
>>Porters Handbook expresses clearly:
>>
>>"The port should respect the CFLAGS variable. What we mean by
>>this is that the port should not set the value of this variable
>>absolutely, overriding the existing value; instead, it should
>>append whatever values it needs to the existing value. This is
                            ^^^^^
>>so that build options that affect all ports can be set
>>globally."
> 
>     Yes, that's *very clear*, and means that I should turn the
> 
>     CFLAGS = -O3 -Wall ...
> 
>     to 
> 
>     CFLAGS += -O3 -Wall ...

It depends whether you consider `-O3' to be needed by the port.
Does it compile and run without?

-Oliver