[RFC/base] making NSConcreteNumber.h private

[David Ayers]

Hello,

Does anyone have any objections about making 'NSConcreteNumber.h' 
private?  I'd also move the header to the 'Source' directory, before it 
accumaltes any history where it is now.  The NSNumber API should be 
#include'd through 'NSValue.h'.  (Or is there an 'OpenStep' 
implementation/derivative that made this header public?  Which would be 
the only reason I see to keep this a public header.)

Cheers,
David

PS: I've just updated dev-libs/guile to not rely on 
'NSConcreteNumber.h'.  I guess no one has ever tried to run 
dev-libs/guile on OS X.  Should that ever change, or can we assume 
GNUstep functionality when writing tests?

PPS: I haven't understood this yet fully, but it seems that Greg/libtool 
is generated by Greg/configure.  Is there any reason to keep 
Greg/libtool in the repository?