man.cgi doesn't find symlinked manpages

[Abigail G <dev@kb6.ee>]

I'm working on tracking down an issue with the Void Linux instance of
man.cgi, man.voidlinux.org, which uses mandoc v1.14.6.

Manpages that are symlinks of other manpages are not included in the
results of a man.cgi search, returning 404, but are confirmed to exist
in the mandoc.db the cgi uses. An example of this is xlocate(1), which
is a symlink of xtools(1). `man xlocate`, `apropos xlocate`, and
`whatis xlocate` work fine locally on that host, but the same query via
cgi does not when using the 'man' button. Using the 'apropos' button
does, however.

I've narrowed it down to the following in pg_search() in cgi.c:

	if (req->isquery && req->q.equal && argc == 1)
		pg_redirect(req, argv[0]);
	else if (mansearch(&search, &paths, argc, argv, &res, &ressz)
== 0)
		pg_noresult(req, 400, "Bad Request",
		    "You entered an invalid query.");
	else if (ressz == 0)
		pg_noresult(req, 404, "Not Found", "No results
found.");
	else
		pg_searchres(req, res, ressz);

and the search mode that man.cgi is using (req->q.equal), which seem to
imply that mansearch() is not finding the symlink in its search because
of the mode of search that it is in.

Is this the intended behaviour? If so, can it be changed to match man,
apropos, and whatis? Not finding the page in one search method is a
bit unintuitive to me, at least.

-- 
Abigail G
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