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Re: undocumented M4 environment variable

From: Paul Eggert
Subject: Re: undocumented M4 environment variable
Date: Mon, 28 May 2007 23:52:08 -0700
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)

"EXCOFFIER, Denis \(CS SYSTEMES INFORMATION\)" <address@hidden> writes:

> By the way, i also suggest that you use the environment variable "BISON_M4" 
> instead of the very short "M4" for that purpose.

This would have been a good suggestion when that feature was first
added, but now I'm not so sure.  Perhaps people are depending on it?

If we change things, I'd prefer it if we dropped all use of the
environment variable: it's a recipe for trouble.

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