v 0.3.0.2 fails to build with --enable-gtk-doc. make[3]: *** No rule to make target `Parole-Plugins-docs.sgml', needed by `html-build.stamp'. Stop.
I've committed the change that should fix this problem. It's currently in git-master, will be released in 0.3.0.3.
This should be fully resolved in version 0.3.0.3 released about 2 minutes ago. :-) Please try once more.
We haven't heard anything new on this is nearly a month, so I'm closing it out. Please file a new bug if you have any more troubles.