module Infix:sig..end
val (===) : string -> string list -> [> `Var of Makefile.var ]
val (=:=) : string -> string list -> [> `Var of Makefile.var ]
val (=::=) : string -> string list -> [> `Var of Makefile.var ]
val (=+=) : string -> string list -> [> `Var of Makefile.var ]
val (=?=) : string -> string list -> [> `Var of Makefile.var ]