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Re: Failing to use gnulib bootstrap in libtool


From: Jim Meyering
Subject: Re: Failing to use gnulib bootstrap in libtool
Date: Fri, 03 Sep 2010 08:05:37 +0200

Gary V. Vaughan wrote:
> 14. Updating
> ============
>
> There's no obvious way for bootstrap to update itself.  Since we got to some 
> lengths to install the `gnulib' subproject that it comes from, it should at 
> least be able to warn that it is out of date even if a self-update is not 
> possible - is it even possible (let alone portable) for a script to copy 
> something over itself while running, and then re-exec to pick up the changes?

Detection would be easy.  Something like this:

    cmp $0 $gnulib_path/$build_aux/bootstrap

A warning would be good, but I would avoid an auto-update.



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