1  /* PR c/63453 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-std=gnu11" } */
       4  
       5  inline int fn1 (void); /* { dg-warning "declared but never defined" } */
       6  extern inline int fn2 (void); /* { dg-warning "declared but never defined" } */
       7  inline int __attribute__ ((gnu_inline)) fn3 (void);
       8  extern inline int __attribute__ ((gnu_inline)) fn4 (void);