Pete, I may be a bit off on this, but I think the error is coming out during the resolving phase not the writing phase. See http://www.sphinx-doc.org/en/stable/extdev/tutorial.html
I believe the HTML builder works mostly in phase 4 and it may be some other process trying to do the resolving in phase 3 that is generating the error. If that is the case, the resolver can still see the :ref: and tries to resolve it since it can see the only node, but the html builder should skip it when visit_node is called. --Peter On Tuesday, March 14, 2017 at 10:18:12 AM UTC-7, Pete wrote: > > I only want to include the text with :ref:`installation` when building a > latex (or latexpdf) document. So, when "make html" is run, this code:: > > .. only:: latex > > See the section called :ref:`installation`. > > generates this warning:: > > C:\Users\...\Introduction.rst:14: WARNING: undefined label: > installation (if the link has no caption the label must precede a section > header) > > When using the "html" builder, this line should not produce any output or > warnings or ... since it is inside the only directive that specifies a > different builder. In truth, the installation label is *not* present. > That *would* be brought in to a the document under the same type of "only" > directive elsewhere. > > What have I misunderstood about the "only" directive? > http://www.sphinx-doc.org/en/stable/markup/misc.html#directive-only > > Here is another user who has the same assumption, that content within the > only directive will not be processed. > https://trello.com/c/84v7OWVz/1335-sphinx-improve-only-directive-2150 > -- You received this message because you are subscribed to the Google Groups "sphinx-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to sphinx-users+unsubscr...@googlegroups.com. To post to this group, send email to sphinx-users@googlegroups.com. Visit this group at https://groups.google.com/group/sphinx-users. For more options, visit https://groups.google.com/d/optout.
