ports/184339: lang/python27 does not allow unsetting NLS (or other options)

[Gerald Pfeifer]

First of all, thanks for your thorough and helpful responses!

On Thu, 28 Nov 2013, Kubilay Kocak wrote:
> The WITHOUT_OPTION=yes convention is deprecated, the correct method 
> to customising options from the command line is:
> 
> WITH="OPTION1 OPTIONN" or
> WITHOUT="OPTION1 OPTIONN"

With this change, things work for me expected, thanks.  

Still, even if WITHOUT_NLS is deprecated (which the system did not 
warn about), failing the users explicit request is not so nice.

On Thu, 5 Dec 2013, John Hein wrote:
> Having WITHOUT_* work in some cases but not others consistently seems
> like a potential source of confusion if the rules are not spelled out
> clearly.

Absolutely.  It definitely confused me quite a bit. :-)

> As far as python27, I'm not sure why NLS is in the OPTIONS_DEFINE list
> instead of just relying on the fact that NLS is a global option.  As
> far as I understand it, NLS could be removed from OPTIONS_DEFINE for
> python27 (& other pythonXY ports).  It has a slightly different
> NLS_DESC than the default option, but I'm not sure that nuanced
> distinction is important in this case.  Unless there's a good reason
> I'm missing to have NLS in OPTIONS_DEFINE, I'd vote on removing it
> from OPTIONS_DEFINE in python* (and EXAMPLES and IPV6, too, I suppose).

I concur.  

Gerald