>but for some reason cmake doesn't find it. I'm too dense to find 
>out where/why it isn't being use. Where do I look?

I vaguely recall encountering the same failure about tree.h. After 
I found the patches I previously attached I then was able to 
compile wv2.

Head to this URL:

http://snapshot.debian.org/package/wv2/0.4.2.dfsg.1-10/

Download the file in the first link, which is a tar.gz.

Open the tar.gz and notice the directory of patches. Use those 
patches to build wv2.

That should resolve wv2 concerns.

Darrell