Thanks to Claudio and Roberto for their answers to my previous mail!
I asked a friend who has CodeWarrior Pro 3 to take a look at the 68K
Processor Code Generation settings in the lua31lualib.prj file, which I
wasn't able to open with my old CodeWarrior 11. The solution to my problem
seemed to be checking these options:
Far Method Tables
Far String Constants
That kind of details is not my favourite topic ;)