Documentation of __GMP_CC and __GMP_CFLAGS ?

[Sisyphus]

Hi,

Are there any plans to document __GMP_CC and __GMP_CFLAGS in the future ?

I've made them accessible from (the perl module) Math::GMPz, because of 
their potentially useful diagnostic capabilities ... but then I've also 
received a complaint about that because they're not documented
( https://rt.cpan.org/Ticket/Display.html?id=46604 ).

Knowing what (if anything) is planned in this regard might have a bearing on 
how I deal with that complaint.

Cheers,
Rob