[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 #8 from Martin Sebor <msebor at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #7)

Thanks for the heads up!  There's an additional problem in target-supports.exp
that needs fixing for the ifunc support to be correctly detected, and a few
more type problems in the attr-ifunc-*.c tests that were hidden by the
target-supports.exp failure.  I'm about to commit a fix for all of them.