Thomas Gilligan <thomas(dot)gilligan(at)icloud(dot)com> writes:
> Under the next version of macOS (11.0 unreleased beta 3), configuring Postgres 9.5 and 9.6 fails with
>> checking test program... ok
>> checking whether long int is 64 bits... no
>> checking whether long long int is 64 bits... no
>> configure: error: Cannot find a working 64-bit integer type.
Hm, could we see the config.log output for this? I'm not 100% convinced
that you've diagnosed the problem accurately, because it'd imply that
Apple made some fundamentally incompatible changes in libc, which
seems like stirring up trouble for nothing.
regards, tom lane