https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65753
--- Comment #4 from Alexander Monakov <amonakov at gcc dot gnu.org> --- The check rejecting indirect calls was introduced with commit https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=069db0ae0a5b5b61d64731a94eea002fb3c9d901 (gcc-patches thread starting at https://gcc.gnu.org/ml/gcc-patches/2002-10/msg00419.html ).