http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51749
--- Comment #15 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-01-29 10:38:59 UTC --- This one is evidently due to the reference-counted nature of our string class, and is also very, very old. It will go away automagically when we'll move to no-reference-counting for C++11 (like the current ext/vstring.h). Really, I only want to add that these issue are well known.
