[Lazarus] How do I use Unicode characters on MacOS / Carbon?

[Doug Chamberlin]

Brad Campbell wrote:
> Having converted all my code to use the UTF conversion routines in LCLproc, I now get flawless 
> Unicode on Linux and MacOS.. Whoo! On to Win32 now :)
> 
> Again, a big thanks guys, that was a headache.

Would you consider writing up short summary of what is needed to 
accomplish this when you finish with Win32 fixes?

I, for one, have yet to start tackling character conversions and I'm 
looking for a succinct guide. Real life experience is worth a bunch!