__memrchr 35 maint/gnulib/lib/memrchr.c #undef __memrchr __memrchr 41 maint/gnulib/lib/memrchr.c # define __memrchr memrchr __memrchr 46 maint/gnulib/lib/memrchr.c __memrchr (void const *s, int c_in, size_t n)