http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52456
--- Comment #2 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2012-03-02 16:56:23 UTC --- > --- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> > 2012-03-02 16:47:44 UTC --- > And the undesignated symbols are...? Is the issue recent? I suppose the symbols are from GLIBCXX_3.4.16. If (as has been the case for Solaris until very recently) the HP-PA Linux baselines were only updated immediately before a minor (X.Y.0) release, the only contain symbols up to GLIBCXX_3.4.15, which was how 4.6.0 was released. check_abi (incorrectly IMO) flags GLIBCXX_3.4.16 symbols as incompatible. Rainer