[Bug libstdc++/51906] thread lock test failures on darwin11 under Xcode 4.2

[iains at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51906

--- Comment #44 from Iain Sandoe <iains at gcc dot gnu.org> 2012-02-03 17:14:43 UTC ---
if you are saying that:
code targeted at 10.6 produced on 10.7 (using the correct 10.6 SDK) doesn't run
properly on 10.7 
- no  surprise - that's just exposing the OS bug.

If you are saying:
code targeted at 10.6 produced on 10.7 (using the correct 10.6 SDK) doesn't run
properly on 10.6, then that is something that people should be concerned about.