gprof won't build with cc on DU4

[Geoff Keating]

> From: Ian Lance Taylor <ian@zembu.com>
> CC: binutils@sourceware.cygnus.com

> Similarly, I normally do not update the copyright dates in the gprof
> sources, because the copyright is held by Berkeley..  It's not clear
> to me whether we are affecting their copyright when we make changes.

When we make changes, we add our own copyright.  If the changes are
significant, probably we should add a GNU copyright notice.

-- 
- Geoffrey Keating <geoffk@cygnus.com>