scc

 1#define A 3
 2#define FOO(X,Y,Z) X + Y + Z
 3#define SEMI ;
 4
 5int
 6main()
 7{
 8	if(FOO(1, 2, A) != 6)
 9		return 1 SEMI
10	return FOO(0,0,0);
11}