reid.kleckner@gmail.com wrote:
> kdevelop-3.2.2 also failed to compile. 3.3.3, however, seems to have
> gotten past that point without failing.

At last a success ;-)

> It's possible that
> kdevapplicationtree is a library from an older version of KDE that has
> been uninstalled.
>

This is a good point. You may be right.
Otherwise there may be a dependency missing (--> grubby ebuild), but
that's very unlikely with kdevelop. But do you have the kde development
libraries installed?