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Re: regression in autoconf-2.62 vs. 2.61

From: Ralf Wildenhues
Subject: Re: regression in autoconf-2.62 vs. 2.61
Date: Wed, 18 Jun 2008 21:13:00 +0200
User-agent: Mutt/1.5.18 (2008-05-17)

Hi Stepan,

* Stepan Kasal wrote on Wed, Jun 18, 2008 at 06:17:01PM CEST:
> --- a/doc/autoconf.texi
> +++ b/doc/autoconf.texi

> @@ -3095,28 +3094,40 @@ commented out (in case the system predefines that 
> symbol).
>  @end example
>  Pay attention that @samp{#undef} is in the first column, and there is

FWIW, the current code works fine with white space before '#' and
between it and 'undef', it even keeps it in the output.  Not sure
whether you want to mention this, but IIRC the pre-awk code did
this already.

> -nothing after @samp{HAVE_UNISTD_H}, not even white space.  You can
> -then decode the configuration header using the preprocessor directives:
> +nothing after @samp{HAVE_UNISTD_H}, not even white space.
> +(The use of old form templates, with @samp{#define} instead of @samp{#undef}
> +or comments on the same line as the @samp{#undef}, is strongly discouraged.)


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