In the past, we have hit annoying incompatibilities when
people have attempted to rebuild ELinks documentation
with new versions of AsciiDoc:
http://bugzilla.elinks.cz/show_bug.cgi?id=989http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=491820
So now we bundle the configuration files from a known good version
to let ELinks documentation be built with them regardless of which
version has been installed on the machine.