Frank van Vugt <ftm.van.vugt@foxi.nl> writes:
> I'll look into the possibility of upgrading libc, but given the source of
> oracle_compat.c, would it be possible to get the v7.4.6 behaviour back for
> the time being by fiddling the #define USE_WIDE_UPPER_LOWER ?
Yeah, IIRC it should be a one-liner kind of change to force the
non-towupper fallback. If this turns out to be a widespread bug we
might have to consider making configure know about it :-(
regards, tom lane