[Bug libstdc++/52191] New: abi_check should flag additions to released versions

["ro at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52191

             Bug #: 52191
           Summary: abi_check should flag additions to released versions
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ro@gcc.gnu.org
                CC: bkoz@gcc.gnu.org


When regenerating the Solaris libstdc++ baselines, I noticed that there were
several additions to already release/closed symbol versions:

  http://gcc.gnu.org/ml/gcc-patches/2012-01/msg01163.html

Provided that the baselines for the various targets are updated immediately
before
releases, abi_check should be able to flag such additions since they are
obviously
not supposed to happen.  This is certainly far better than noticing the problem
only by accident/manual inspection or, even worse, only after another major
release has happened.

Ben, do you think this is feasible?

Thanks.
  Rainer