On 13 January 2012 17:45, Benjamin Kosnik wrote: > > Note that one of the objectives of this email is to try and get > maintainers from thinking there is going to be "a perfect time" to > switch. Development history tells us there will always be more changes. > We've been sitting on ABI-breaking changes since 2003.
e.g. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51823 which I only learnt about the other day. And they keep on coming too, here's a brand new one: http://gcc.gnu.org/ml/libstdc++/2011-12/msg00153.html Which is why I asked that aside about starting to fix those things when --enable-symvers=gnu-versioned-namespace is used, so that they're correct in v7 asap. If I can't make std::future::wait_for() return future_status::deferred without breaking the v6 ABI, I'd like to at least get the fix out of my git clone and into libstdc++.so.7 > So, the smart thing to do is to plan a transition..... and to allow > testing in an easy and reproducible manner beforehand. The more time > the better. I'm sold :)