Re: avoiding pitfal of reuse of globals in FLAT mode?

[Gregory Nutt]

Se we can either add something special just as for errno or use entries in that array 
(which would require establishing a minimum number of entries to satisfy the case of 
getopt en potentially others). I think it is better to somehow "reserve" space 
for the known required cases.

What i'm worried about is: how many other cases like this there could be? Maybe 
there will be a considerable number of this entries added to TLS structure 
(yes, four bytes, but they can add up quickly). I would personally prefer to 
use reentrant versions when they are available, instead of increasing memory 
use of every thread. Not sure what is really best here...
Standardization is certainly the highest value of the OS and the thing 
that makes NuttX what it is.  Sacrificing standardization sacrifices the 
core value of the OS.