The build logs for all 5 packages have build failures in the exact same manner.
Steps to Reproduce:
1. ebuild the packages in question
no build failures
I think a DTD got 404'ed somewhere.
Created attachment 332184 [details]
Created attachment 332186 [details]
Four of those errors seems to be about app-text/docbook-xsl-stylesheets, the other one about app-text/docbook-xml-dtd:4.1.2.
IIRC, there was a bug during last month or so regarding app-text/build-docbook-catalog that could have caused this.
I'd like to add this as a dependency
My suggestion is to revbump build-docbook-catalog so that the catalogs will be rebuilt automatically.
app-text/build-docbook-catalog has been bumped since then