/* { dg-do compile } */ typedef enum { XYZZY, } enumType; typedef struct { unsigned char More : 1; } tResp; typedef struct { enumType QueryType; union { tResp l[0]; } u; } tQResp; void test(void) { tQResp *qResp = (0); if (qResp->u.l[0].More == 0) return; }