No NDEBUG in release mode

[Jaison Lee]

> > > I've noticed that when I configure kdelibs with -
> > > DCMAKE_BUILD_TYPE=release, there is no NDEBUG defined. [...]
>
> Counter proposal:

This looks like a much better place to put the change, but I think
your patch only changes icc and not gcc, which is about two pages
above where you made your change.

And in case anyone who knows is reading in; shouldn't MinSizeRel be
reflected in this area?