When BUILD_DOCBOOK_HTML is NO, keep the rules, just omit the target
authorsimonpj@microsoft.com <unknown>
Fri, 5 Mar 2010 17:30:04 +0000 (17:30 +0000)
committersimonpj@microsoft.com <unknown>
Fri, 5 Mar 2010 17:30:04 +0000 (17:30 +0000)
commit594eb9175eade48b7d3703502492e57938bb8668
tree33f56440a5f4b68a67bccd66e6ba9f3b4d52bc84
parent1b0259ee4fef03155482db050ae22ec93272e5fa
When BUILD_DOCBOOK_HTML is NO, keep the rules, just omit the target

  (and similarly for PS and PDF)

The previous setup nuked the rules for making the documentation when
BUILD_DOCBOOK_HTML=NO.  This meant that "make html" didn't work.

There isn't any reason to nuke the rules (so far as Simon and I know).
rules/docbook.mk