[Bug c/81854] weak alias of an incompatible symbol accepted

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81854

--- Comment #15 from Martin Sebor <msebor at gcc dot gnu.org> ---
Yes, the recent changes to the C++ tests are wrong.  The failures are being
tracked under bug 82301.  I have a patch out for review to fix both the tests
and the implementation of the warning to resolve the problem
(https://gcc.gnu.org/ml/gcc-patches/2017-09/msg01603.html).