Reserved word list for CW 7 (NW)

I'm using CW 7 with PDK 4 for NetWare, and I'm having trouble with this
trivial program:

int main( int, char ** )
{
    int or = 3;
    return 0;
}

Obviously "or" is a reserved word, though I don't know why. Watcom and
Microsoft have no problem with this program.

Is there a list of all the reserved words?

Thanks
Graeme