1/* PR preprocessor/27777 */ 2/* { dg-do preprocess } */ 3/* { dg-options { -trigraphs -Wall } } */ 4 5#error "BUG??!" 6 7/* { dg-error "BUG" "" { target *-*-* } 5 } */ 8/* { dg-warning "trigraph" "" { target *-*-* } 5 } */ 9