1override A:=PASS_A 2A:=FAIL_A 3 4override define B 5PASS_B 6endef 7B:=FAIL_B 8 9override C := FAIL_C 10override C := PASS_C 11C := FAIL_C2 12 13test: 14 echo $(A) 15 echo $(origin A) 16 echo $(B) 17 echo $(origin B) 18 echo $(C) 19 echo $(origin C) 20