operator and I'm very open to suggestions, but it seems to work. What
@system does is to mark a def in such a way that the linker will allow it
to be redefined /once/ giving the programmer control over where and when
a def is defined, but initializing it elsewhere. This is most useful when
working with v6 progs and separate compliation as the `system' defs need to
be in a certain order in certain locations or the resuting progs.dat file
will be incompatable with non-qf 0.5 servers.