[Bug libstdc++/55123] [C++11] Construction of shared_ptr<const T> from unique_ptr<const T> fails

[yegor.derevenets at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55123

--- Comment #4 from Yegor Derevenets <yegor.derevenets at gmail dot com> 2012-10-29 18:35:45 UTC ---
Confirm, the patch works for me.