/* { dg-do compile } */
#include <objc/objc.h>

#if defined(__has_attribute) && __has_attribute(objc_root_class)
__attribute__((objc_root_class))
#endif
@interface MyRootClass
{
  Class isa;
}
@end

@interface MySubClass
{
  volatile int a;  /* This is allowed */
  extern int b;    /* { dg-error "expected" } */
  static int c;    /* { dg-error "expected" } */
  inline int d;    /* { dg-error "expected" } */
  typedef int e;   /* { dg-error "expected" } */
  __thread int f;  /* { dg-error "expected" } */
}
@end