Run make to build manuals
Targets pdf and html are also available.

You may want to override xml processor and stylesheet to fit your system.
Actual path are from Debian system.
Use these variables

XP=/usr/bin/xsltproc

Man page stylesheet
XSL=/usr/share/xml/docbook/stylesheet/docbook-xsl-ns/manpages/docbook.xsl

HTML stylesheet
HXSL=/usr/share/xml/docbook/stylesheet/docbook-xsl-ns/html/docbook.xsl
