Conventions for system headers

[M. Warner Losh]

In message: <464378FE.1010503 at msobczak.com>
            Maciej Sobczak <prog at msobczak.com> writes:
: I still don't understand this argument about pollution - if the header 
: is incomplete, then the user has to "pollute" his namespace on his own. 

There are standards documents that say very clearly what is and is not
allowed to be defined when different files are included, typically
what is defined and nothing else allowed.  The problem is very real,
and there will be some files that will never be complete and
standalone on their own, mostly for historical reasons...

Warner