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From Alexander Shorin <kxe...@gmail.com>
Subject Re: ./configure question
Date Fri, 03 Apr 2015 13:55:59 GMT
On Fri, Apr 3, 2015 at 4:46 PM, Alexander Shorin <kxepal@gmail.com> wrote:
> On Fri, Apr 3, 2015 at 4:38 PM, Jan Lehnardt <jan@apache.org> wrote:
>> rootdir="$(cd "${0%/*}" 2>/dev/null; echo "$PWD")"
>
> ${0} - executable path. like shell
> ${0%/*} - get parent directory of this path
> $(cd ${0%/*}) - execute a shell command
> since cd changes current directory, it also updates environment
> variable $PWD according it. In case of success you'll be moved to
> somewhere like /bin (for me)

TL;DR that script is to find full path of an executed script and
ensure that location is accessible and set rootdir with the directory
path where those configure script is located.

--
,,,^..^,,,

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