As I was trying to reinstall Abiword on my Slackware64-current desktop I ran into a couple of issues.
One was a GTK3 issue where the text area shows black. Another was a compilation error.
After a bit of searching around I was able to modify some lines in xap_UnixFrameImpl.cpp xap_UnixFrameImpl.h and pd_DocumentRDF.cpp to get a successful compile. I can now use Abiword again.
In case anyone is interested in the changes I did a quick diff to a .patch file and put it on GitHub.
https://github.com/riscyslack/patche.../abiword.patch