RE: Avoiding 'reference to free variable' warnings while splittingelisp source files

[Drew Adams]

> Is there a sane way to split the source of an elisp file
> while avoiding the 'reference to free variable' warnings
> when byte-compiling?
> 
> The problem arises when a variable defined in one file
> is used in another.   How does one avoid those errors?

Use a vacuous definition: (defvar the-variable)
See (elisp) `Defining Variables':

 This form defines `foo' but does not initialize it:
   (defvar foo) => foo