On Mon, Apr 20, 2015 at 09:13:15AM +0200, Heinz Diehl wrote: > xsltproc --nonet -o manual.html ./html.xsl manual.xml > I/O error : Attempt to load network entity > http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl
That's because the xsltproc tool is explicitly requested not to permit any network access (--nonet). Solution is to install DocBook DTDs into your file system and register them in /etc/xml/catalog. Common Linux distributions provide packages doing all the necessary things. Mutt's configure script could check for working xsltproc --nonet on simple DocBook document with external DTD declaration to die sooner. -- Petr
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