".def" isn't a universally-recognised suffix; versions of
	make that don't know about it will think ".def.a" is a target
	rather than a rule.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@83200 13f79535-47bb-0310-9956-ffa450edef68