gcc/testsuite/g++.dg/lto/20081120-1_1.C

extern "C"
{
 extern __inline __attribute__((__gnu_inline__)) int pthread_equal(int, int)
 {
    return 0;
 }
}
static __typeof(pthread_equal)
    __gthrw_pthread_equal __attribute__((__weakref__("pthread_equal")));