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Re: svn commit: r1643793 - /subversion/trunk/autogen.sh

From: Branko ─îibej <brane_at_wandisco.com>
Date: Mon, 08 Dec 2014 13:14:08 +0100

On 08.12.2014 13:03, philip_at_apache.org wrote:
> Author: philip
> Date: Mon Dec 8 12:03:23 2014
> New Revision: 1643793
>
> URL: http://svn.apache.org/r1643793
> Log:
> * autogen.sh: Unset CDPATH.
>
> Modified:
> subversion/trunk/autogen.sh
>
> Modified: subversion/trunk/autogen.sh
> URL: http://svn.apache.org/viewvc/subversion/trunk/autogen.sh?rev=1643793&r1=1643792&r2=1643793&view=diff
> ==============================================================================
> --- subversion/trunk/autogen.sh (original)
> +++ subversion/trunk/autogen.sh Mon Dec 8 12:03:23 2014
> @@ -23,6 +23,10 @@
> ### Run this to produce everything needed for configuration. ###
>
>
> +# Some shells can produce output when running 'cd' which interferes
> +# with the construct 'abs=`cd dir && pwd`'.
> +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

I think the proper solution is to ignore cdpath by changing the
construct to:

    abs=`cd ./dir && pwd`

That is, use an absolute or relative path instead of just a directory
name. Farily typical usage would be:

    abs=$(cd $(dirname $0)/foo && pwd)

(or, to avoid bashisms: here=`dirname $0`; abs=`cd "$here/foo" && pwd`)
which avoids the CDPATH problem entirely, since `dirname $0` will
resolve to at least ".".

-- Brane
Received on 2014-12-08 13:14:41 CET

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