According to Frank Heckenbach:

[...] -- or is it an instance of the "cannot write longint variables" known bug?

It is. Peter Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski@uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201] maintainer GNU Pascal [970624] - http://home.pages.de/~gnu-pascal/ [970125]