The htmlhelp stylesheets are installed in {PORTDOCS}/share/doc/docbook-xsl/htmlhelp/ This causes problems if the stylesheet is being called because it includes "../html/chunk.xsl" which is installed to ${PREFIX}/share/xsl/docbook. Also htmlhelp.xsl had a problem in v1.50 that caused an error which was fixed later in their CVS Repository. Since they've only released a subsequent "experimental" release, I've included the fix in my patch so that it now works with the current version. How-To-Repeat: Install the port and try using the htmlhelp.xsl stylesheet.
Responsible Changed From-To: freebsd-ports->des over to maintainer
State Changed From-To: open->closed Fixed, thanks.