On Feb 4, 2014, at 1:41 AM, David Chisnall wrote:
> It sounds like you're just looking at the output from nm, without bothering 
> to check how the symbols are used.  

With all due respect, if it is in nm output, it is part of the ABI, intended or 
not. Years ago, before symbol versioning, we had all kinds of issues like this 
where something 'accidentally' referenced something in the ABI and broke when 
that was tightened up (accidentally or on purpose). Sometimes it didn't matter, 
other times it did. In the Bad Old Days, we just mostly ignored this unless it 
mattered too much... I'd rather not see a return to the Bad Old Days... which 
is unfortunate. Doing ABI stable releases with C++ is much much harder than 
plain old C...

Warner

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