[tz] Errors compiling 2022f on macOS

[Paul Eggert]

On 2022-10-30 16:42, Guy Harris wrote:
> the only *BSD on which you'll get internationalization by default is NetBSD; the others won't give you libintl out of the box, just as macOS won't - you'd have to install it yourself.

That's OK. The localized diagnostics aren't essential, as most people 
who run zic are computer nerds who are likely to be able to read 
English-language diagnostics (and/or feed them into Google Translate). 
The idea, though, is that it's nicer if zic isn't by default offputting 
to everybody else.

That being said, the idea that internationalization ought to be easy 
seems to be foreign enough to so many platforms, that perhaps we should 
enable gettext by default only on glibc and Solaris where it's known to 
work out of the box. Even NetBSD (where gettext is not an option) 
requires you to link with -lintl, which is a configuration hassle.