[Technology] gtk-doc failing to load chunk.xsl

While working on GXml, trying to generate its documentation, I ran into this:

I/O error : Attempt to load network entity http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl
            warning: failed to load external entity "http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl"
            compilation error: file /usr/share/gtk-doc/data/gtk-doc.xsl line 10 element import
            xsl:import : unable to load http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl
            

This was not happening last week, so it must be my upgrade to Fedora 19.  I tried a few different things, and ultimately discovered RedHat bug 428531 which helpfully suggested reinstalling docbook-style-xsl. 



So, on Fedora,

yum reinstall docbook-style-xsl

After that, it finally continued and finished building. :)