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