Re: [ptxdist] configure failed with sed version 4.2.2

[Marc Kleine-Budde <mkl@pengutronix.de>]

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On 01/07/2013 03:19 PM, Alexander Aring wrote:
> Hello,
> 
> i am using archlinux with GNU sed version 4.2.2 which generate with 'sed
> --version':
> 
> sed (GNU sed) 4.2.2
> Copyright (C) 2012 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html
>> .
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
> 
> Written by Jay Fenlason, Tom Lord, Ken Pizzini,
> and Paolo Bonzini.
> GNU sed home page: <http://www.gnu.org/software/sed/>.
> General help using GNU software: <http://www.gnu.org/gethelp/>.
> E-mail bug reports to: <bug-sed@gnu.org>.
> Be sure to include the word ``sed'' somewhere in the ``Subject:'' field.
> 
> 
> This will fail on sed version check in configure.ac:
> SED_VERSION=`$SED --version 2>/dev/null | $SED -ne "s/.*version
> \([[0-9\.]]*\)/\1/p"`
> 
> 
> With command 'sed --version 2>/dev/null | sed -ne "s/.*version
> \([[0-9\.]]*\)/\1/p"' I got following output:
> "3 or later <http://gnu.org/licenses/gpl.html>."
> 
> and configure failed with:
> checking sed version... configure: error: we need at least GNU sed 4.x
> 
> 
> GNU sed gets version string from gnulib see
> http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=lib/version-etc.c;hb=dbed1625626c6d6f271b715f87fd0930d8e68c2f
> beginning at line 43.
> 
> I don't see a "version" substring there, maybe it isn't the best way to
> match the sed version.

Since 4.2.1 the output of sed --version changed:

> $ sed --version
> GNU sed version 4.2.1
> Copyright (C) 2009 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,
> to the extent permitted by law.
> 
> GNU sed home page: <http://www.gnu.org/software/sed/>.
> General help using GNU software: <http://www.gnu.org/gethelp/>.
> E-mail bug reports to: <bug-gnu-utils@gnu.org>.
> Be sure to include the word ``sed'' somewhere in the ``Subject:'' field.

Can you please improve the regex to parse both version of sed?

regards,
Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
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