[Patch] Nathan's improvements to basic_string

[Benjamin Kosnik]

>That's because the asm constraints [in config/cpu/i486/atomicity.h]
>are now likely wrong.  They likely became wrong when someone installed
>the patch to allow either {0,1} or {1,0} ordering...

That would be:

2003-06-02  Andrew Pinski  <pinskia@physics.uc.edu>

	PR libstdc++/9815
	* config/cpu/i386/atomicity.h (__exchange_and_add): add intel
	asm case to asm.
	* config/cpu/i486/atomicity.h (__exchange_and_add): Likewise.
	(__atomic_add): likewise.

I checked this in, after the x86 maintainer (RTH) approved. If it's not
right, they'd be the best people to contact about fixing it.

-benjamin