Yes, it is.
Trying to debug some issues with running clj and cljs tests for core.rrb-vector, and Alex Miller suggested patterning how to do this after how data.xml library does it. I found this call to cljs.build.api/build in data.xml library, and unless I have wrong docs for that function (I might), it looks like an incorrect call. Was hoping for confirmation.
The call in question is here: https://github.com/clojure/data.xml/blob/master/src/test/resources/clojure/data/xml/cljs_testsuite.clj#L20-L22
Hmm. Never mind. I think I'm having a senior moment on reading that code.