On Wed, Aug 3, 2022 at 1:43 AM Tom Lane <tgl@xxxxxxxxxxxxx> wrote: > I believe most if not all variants of Unix are > permissive about the spelling of the encoding part. I've only seen glibc doing that downcase-and-strip-hyphens thing to the codeset part of a locale name when looking for locale definition files. Other systems like FreeBSD expect to be able to open /usr/share/locale/$LC_COLLATE/LC_COLLATE directly without any kind of munging. On a Mac it's probably a little fuzzy because the filenames are case insensitive...
