An extension for viewing Devhelp documentations on Docview.
First enable it in Docview. Then add directory with Devhelp documentations to documentation search paths (e.g /usr/share/devhelp/books). If the directory contains any valid documentations, it'll appear in the sidebar.
Just execute make . If you've installed Docview in custom directory, set proper compiler arguments in CXXFLAGS and LDFLAGS variables.
This extension depends on libxml++, libdocview and the C++ standard library.