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libatomic/ChangeLog: 2017-10-02 Martin Sebor <msebor@redhat.com> PR c/81854 * acinclude.m4 (LIBAT_CHECK_IFUNC): Have ifunc resolver return a function pointer rather than void* to avoid GCC 8 warnings. * configure: Regenerate. * libatomic_i.h: Declare ifunc resolvers to return function pointers rather than void*. From-SVN: r253372