running 4.4 libstdc++ testsuite using 4.5's libstdc++ shared library

[Paolo Carlini]

Hi,

> But, I think the high-order bit is Jonathan's comment above: libstdc++
> is not maintaining backwards-compatibility for its complete interface.
> Jonathan, Paolo, I feel that if that is the case then the SONAME for
> libstdc++ should have changed beetween 4.4 and 4.5.

Mark, I think there is a double misunderstanding here. First, we are talking about a small, experimental, c++0x feature, not a normal library facility. Second, the concerned facility was completely *unusable* before the recent changes. In general, I'm certainly in favor of preparing for breaking the ABI, and at some point we'll have to do that *anyway*, but frankly I don't think we have a good reason here to do that.

Paolo