Re: POSIXLY_CORRECT not correctly unset in getopt.m4?

[Eric Blake]

On 09/07/2010 02:09 PM, Bruno Haible wrote:
> Eric Blake wrote:
> > env is required by POSIX, but it is not (yet) listed in the list of
> > programs safe to use in GNU Coding Standards
>
> And 'env' would not help much, because its output can easily be confused
> by environment variable values that contain newlines:
>
>    $ foo='not
>    POSIXLY_CORRECT=1'
>    $ export foo
>    $ env | grep POSIXLY_CORRECT
>    POSIXLY_CORRECT=1

P.S. This is precisely why GNU coreutils recently added the -0/--null 
option to env.

--
Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org