The latest version of Autotools does not support choosing a Build Special Target that is not "all" or "clean". Any argument other than those two is translated to a make all.
A piece of code that sets up the Make target using a Std Make build info property was inadvertently removed. Thus, the target was always defaulting to "all" as is the case for a Managed Make project which is the type of project Autotools bases itself on. A fix has been made which will be rolled into an 0.0.8.1 update.