[Bug libstdc++/52765] -std=c++0x requires multilib for non-optimized libstdc++

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52765

--- Comment #8 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-03-29 
15:52:52 UTC ---
For sure, anyway, at -O0 the library *is* exporting unwanted symbols. I'm not
sure that at this time we can really support what you want.