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Re: notes on current atomics config and usage

> Never mind: I see only now that in this conservative version of the 
> patch you can only force the library to use the i386 configuration 
> (passing i386), you cannot force it to use the atomic builtins, because 
> you didn't remove the cpu/i486 config and the autoconf test is used only 
> when cpu/generic would be otherwise selected. Yes, for now at least 
> better this safe, conservative change ...

Yep.

Looks like this approach is a win, so I'll put it in after doing some
testing on powerpc64.

-benjamin
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