I found a different problem with src/test/icu/: it fails altogether if the prevailing locale is "C", because then the database encoding defaults to SQL_ASCII which our ICU code won't cope with. I'm not sure if that explains any of the buildfarm failures, but it broke my local build (yeah, I'm that guy). I un-broke it for the moment by forcing the test to use UTF8 encoding, but do we want to do anything smarter than that?
regards, tom lane
