-I can see two good ways to implement this. Ideally, with [[conditional_text_based_on_ikiwiki_features]] available, ikiwiki could parse a page like conditionalpages.mdwn, which could contain a set of conditional-wrapped page names; that seems like the most elegant and ikiwiki-like approach. Alternatively, ikiwiki.setup could contain a Perl-generated exclude option by default; that would work, but it seems hackish.
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+I can see two good ways to implement this. Ideally, with
+[[conditional_text_based_on_ikiwiki_features]] available, ikiwiki could
+parse a page like conditionalpages.mdwn, which could contain a set of
+conditional-wrapped page names; that seems like the most elegant and
+ikiwiki-like approach. Alternatively, ikiwiki.setup could contain a
+Perl-generated exclude option by default; that would work, but it seems
+hackish.
+
+> Another way might be to have a third directory of source files where
+> plugins could drop in pages, and only build the files from there if their
+> plugins were enabled.
+>
+> Using the conditionals in a page to control what other pages get built
+> feels complex to me.
+>
+> Instead, this has been implmented as the `add_underlay()` function.
+> [[done]]
+> --[[Joey]]
+