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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Fix needed for communication with gpg-agent
Date: Thu, 22 Feb 2007 02:19:39 -0500
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Xref: news.gmane.org gmane.emacs.devel:66602
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/66602>

    Whatever pinentry writes is garbled when Emacs refreshes the tty
    screen.  The more serious problem, however, is that pinentry cannot
    READ from the tty since Emacs gobbles all tty input.

Can we modify call-process to optionally pass control of the tty
to the subprogram?