stl_threads.h cleanups

[Matt Austern]

On Wednesday, June 11, 2003, at 09:39  AM, Benjamin Kosnik wrote:

>
> Large parts of this file appear to be unused, or under-used. For 
> example,
>
>   struct _STL_auto_lock
>
> is completely unused.
>
>   struct _Refcount_Base
>
> is used only in ext/rope, and then only if #__GC is not defined.
>
> Why is this stuff around, if it's not being used... can any of it be 
> removed?

I'm responsible for both of those things.  I wrote them for the I/O 
portion of
the SGI standard C++ library.  They're unused in libstdc++ because the 
I/O
portion of libstdc++ isn't derived from SGI code.

			--Matt