🚀 go-pugleaf

If I invoke find-file and in specifying the name of a file using
an environment variable as part of the file name, the file is found
precisely.  If I do not happen to know the exact name of the file,
but still use the environment variable to specify the directory and
press space bar to obtain completion, read_minibuf (in the C source
part of Emacs) does not know how to expand the environment variable.
If this were in Lisp code, there would be no trouble expanding
it with my own modifications to read_minibuf, but because it is
in the C part of Emacs, it is REALLY obscure to say the least.

1)	Is there a way to get read_minibuf to expand environment
	variables?
2)	Would someone with some experience of the C part be able
	to elucidate about Frecursive_edit enough so that I could
	maybe modify it to support this.
3)	Maybe most important, has anyone done this already?
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	Dion Hollenbeck             (619) 455-5590 x2814
	Megatek Corporation, 9645 Scranton Road, San Diego, CA  92121
        uunet!megatek!hollen       or  hollen@megatek.uucp