A STL patch for egcs 1.0.2

[Jason Merrill]

>>>>> H J Lu <hjl@lucon.org> writes:

> Ulrich, this will make STL thread-safe for glibc 2 and at the same
> time, the non-thread code should be ok. Can you take a look? libstdc++
> in egcs 1.0.2 should be fixed for glibc 2.

I still think not enough people are writing threaded code to make this
necessary for 1.0.2.  Also, your patch changes more than necessary; there's
no need to add #includes of stl_config.h.

Jason