Promote r1753592 as showstopper, since it also fixes build with MSVC.

(Not worth fixing the build if we can backport this change, two fixes for the price of one :)

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1777453 13f79535-47bb-0310-9956-ffa450edef68