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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: strange byte compiler behavior
Date: Sat, 05 Jan 2008 09:29:48 -0500
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References: <200712312055.lBVKteSa012881@oogie-boogie.ics.uci.edu>
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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In-reply-to: <jwvwsqqyvfy.fsf-monnier+emacs@gnu.org> (message from Stefan
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Xref: news.gmane.org gmane.emacs.devel:86155
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    No need to try: the boundp test is still needed to catch the case of
    a variable defined globally in all cases (e.g. in C code or in preloaded
    packages) as well as for variables defined in packages that are
    `require'd (or loaded transitively by some of the `require'd packages).

Would you please fill in the gaps in that argument?
I don't see why it is needed for those.  Shouldn't those
variables be defvar'd?