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Re: 1.10a instspc.test failure

From: Paul Eggert
Subject: Re: 1.10a instspc.test failure
Date: Tue, 16 Jan 2007 09:44:44 -0800
User-agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux)

Ralf Wildenhues <address@hidden> writes:

> -is called.  The value can contain newlines.
> +is called.  The value can contain all ASCII characters except for
> +the @code{NUL} character and carriage return; newline is ok to use.

If we can assume POSIX conformance with a reasonable C locale, the
value should be able to contain any non-NUL character.  There might be
a line length limit, but that's a different issue.

So I'd rather not document the problem with carriage return as a
feature of Autoconf.  It would be OK for now to document it as a bug,
though.  Something like this:

  In principle the value can contain any address@hidden character,
  including newline.  However, due to deficiencies in common Awk
  implementations, it is unwise to put carriage returns or
  address@hidden characters into the value.

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