1
 2.WARNINGS = $(warnval)
 3EMPTY =
 4SPACE = $(EMPTY) $(EMPTY)
 5BAD$(SPACE)VAR = foo
 6
 7define nl
 8
 9
10endef
11
12NL$(nl)VAR = bar
13
14define BAD$(SPACE)DEF :=
15foo
16endef
17
18define NL$(nl)DEF :=
19foo
20endef
21
22all: ; @echo ref