[v3 PATCH] Fix bootstrap failure on powerpc-apple-darwin7.9.0

[Paolo Carlini]

Hi,

> You could use #pragma push_macro and #pragma pop_macro.  Offhand
> it seems to me that this would let you get rid of uglification
> (or a lot of it).  On the minus side, you'd have to maintain a list of
> identifiers you use; but maybe it wouldn't be hard to modify
> g++ to print a list of these.

Oh! Essentially you are telling me that, undocumented, we have already something like the attached? I had *no* idea, shame on me!

Paolo.
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