1 /* { dg-do compile } */ 2 /* { dg-options "-O0 -fshow-column" } */ 3 4 struct { int; int q; } a; /* { dg-warning "13:does not declare anything" } */ 5 struct { union {int x;}; int q; } b; 6 struct { struct {int x;}; int q; } c; 7 union { union {int x;}; int q; } d; 8 union { struct {int x;}; int q; } e; 9