1FOO := foo
 2BAR := bar
 3PREFIX := pone/ptwo
 4
 5$(KATI_visibility_prefix FOO, pone/ptwo baz)
 6$(KATI_visibility_prefix FOO, $(PREFIX) baz)
 7
 8$(KATI_visibility_prefix BAR, pone/ptwo baz)
 9$(KATI_visibility_prefix BAR, baz $(PREFIX))
10
11ifndef KATI
12$(info Visibility prefix conflict on variable: BAR)
13endif
14
15test:
16	@: