1* KWM NOT expanded in 'literal'
2#define KWM 666
3      character(len=3) :: ch
4      ch = 'KWM'
5      if (ch .eq. 'KWM') then
6        print *, 'pp021.F pass'
7      else
8        print *, 'pp021.F FAIL: ', ch
9      end if
10      end
11