locales fixes

[François Dumont]

On 10/12/2014 00:24, Jonathan Wakely wrote:
> I still say the change to "if __GLIBC__ > 2 || __GLIBC_MINOR__ >= 20"
> is simply wrong. It works for me with 2.18, but if it doesn't work
> with 2.19 on Debian then why should it work any better with 2.20?
>
>
     Yes, it was indeed a wild guess because I didn't understand what 
should be the relation between the glibc version and locale data 
returned by the system. I shouldn't have done that.

     But what to do then ? Consider those tests as simply unsupported on 
systems where glibc version doesn't give any info regarding what to expect ?

François