#define _ASSERT_STATIC0(_line, _cond) _ASSERT_STATIC1 (_line, (_cond))
#define ASSERT_STATIC(_cond) _ASSERT_STATIC0 (__LINE__, (_cond))
-#define ASSERT_STATIC_EXPR(_cond) ((void) sizeof (char[(_cond) ? 1 : -1]))
+#define ASSERT_STATIC_EXPR(_cond)((void) sizeof (char[(_cond) ? 1 : -1]))
#define ASSERT_STATIC_EXPR_ZERO(_cond) (0 * sizeof (char[(_cond) ? 1 : -1]))
#define _PASTE1(a,b) a##b
#define ASSERT_TYPE_POD(_type) _ASSERT_TYPE_POD0 (__LINE__, _type)
#ifdef __GNUC__
-# define _ASSERT_INSTANCE_POD1(_line, _instance) union _type_of_instance_on_line_##_line##_is_not_POD { __typeof__(_instance) instance; }
+# define _ASSERT_INSTANCE_POD1(_line, _instance) \
+ HB_STMT_START { \
+ typedef __typeof__(_instance) _type_##_line; \
+ _ASSERT_TYPE_POD1 (_line, _type_##_line); \
+ } HB_STMT_END
#else
# define _ASSERT_INSTANCE_POD1(_line, _instance) typedef int _assertion_on_line_##_line##_not_tested
#endif