10:0(1): preprocessor error: #error line 0 error 20:25(1): preprocessor error: #error line 25 error 31:0(1): preprocessor error: #error source 1, line 0 error 42:30(1): preprocessor error: #error source 2, line 30 error 5 6 7 8 9 10 11 12 13 14