wcstold implementation

[Nicholas Clifton]

Hi Corinna, Hi Craig,

> Well, the locale decimal_point handling should be added, but apart from
> the wrapper thingy above, that's all about it from my POV.
>
> Feel free to send this eventually as a real patch submission.

Corinna - would you like me to wait for Craig's patch to go in and then 
convert my patch to use his _strtold_r function ?  Or shall I just 
submit the patch using strtold() now and then update it later ?

Cheers
   Nick