[Bug libstdc++/54314] [4.8 Regression] undefined references to 'construction vtable for std::ostream-in-std::basic_ostringstream, std::allocator >'

[ktietz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54314

Kai Tietz <ktietz at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-09-10
     Ever Confirmed|0                           |1

--- Comment #9 from Kai Tietz <ktietz at gcc dot gnu.org> 2012-09-10 11:45:36 
UTC ---
(In reply to comment #8)
> I think we should identify when this changed and why. Then, we can certainly
> add the export (please send a regular patch to the library mailing list) but 
> at
> a new minor version, thus CXXABI_1.3.7.

The issue was exposed by trunc's new feature for PECOFF to place readonly-data
with relocation into the .rdata section.  Interesting that this wasn't noticed
before, but to add _[_]ZTC* to gnu.ver fixes the issue.