__uint128_t check in hash.c is broken, use
Current check for __uint128_t in hash.c is not valid, since it ignores
compilers other than gcc. We hit this on lcc on e2k platform.
Configure script properly checks from 128-bit data types support and
sets HAVE_UINT128_T accordingly. This approach is already used within
ruby at bignum.c, random.c, etc.
Probably hash.c is an overlooked remnant of old days. This patch fixes
See also GitHub PR on this issue: