1*  // C++ comment NOT erased from #define
2      integer, parameter :: KWM = 666
3#define KWM 777 // C comment
4      if (KWM .eq. 777) then
5        print *, 'pp031.F FAIL (should not have compiled)'
6      else
7        print *, 'pp031.F FAIL: ', KWM
8      end if
9      end
10