[Bug libstdc++/50703] std::stringstream not thread-safe

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50703

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-10-13 
12:01:56 UTC ---
was gcc built with a non-default value for --enable-clocale ?

what locale is being used by the application?