stl_alloc.h

[Benjamin Kosnik]

> In addition to the issues you raised about the SGI STL: I would also
> support removing all threading support other than the gthread path
> (this is our abstraction layer and is portable to other compilers in
> case anyone wants to raise that issue).  Since there is a ``null''
> gthread plugin, I would support making it the one and only code path
> to radically simplify things.  Supporting the older SGI
> non-abstraction for mutex locking buys us nothing but pain.  Keeping

Agreed.