Hi, On Mon, 18 Jun 2012, Gabriel Dos Reis wrote:
> Jeff, please note that the path that Michael took from what was said > ealier (in particular the quote he provided in his message) and the > conclusion of "enthusiasm for soname bump" is still a mystery. The quoted part suggested switching std::string to the new format for c++11 only, on which I read three agreeing answers (one of them enthusiastic). We have released a libstdc++.so.6 (that contains APIs referring to std::string) with the old format, also for c++11. Changing the API hence requires bumping the soname or doing any of the other tricks I mentioned. As std:string isn't changed already I assume that those other tricks aren't implemented (yet?), hence soname bump it is. So, the enthusiasm transfers to the soname bump (you can't have one without the other in short term). A std:string change for c++11 only also would require installing two libstdc++ in parallel with all the associated considerations (how to make the link editor and the dynamic linker use the right one depending on compilation mode). In that sense changing the layout for std::string for c++11 but not c++98 would be even worse than a soname bump. Ciao, Michael.
