Lines Matching full:undefined

23 # expressions based on undefined variables are preserved though.
25 # Whether an expression is undefined or not is determined at the end
27 # to "fallback"; initially this expression is undefined since it is based on
49 # reference to an undefined variable
71 # expression with an indirect modifier referring to an undefined variable
77 UNDEF=		Uwas undefined
78 .if ${VAR} != "was undefined"
84 # in turn refers to an undefined variable
96 UNDEF=		Uwas undefined
102 # In variable assignments using the ':=' operator, undefined variables are
138 # assignment.  The undefined variables are kept as-is and are later expanded
168 # if the variable name in a ':=' assignment referred to an undefined variable,
177 # It might be a good idea to forbid undefined variables on the left-hand side
255 #	undefined variable, resulting in: