1 #include <stdio.h> 2 3 int counter; 4 extern void foo (void); 5 extern void xxx (void); 6 7 void bar(void)8 bar (void) 9 { 10 } 11 12 int main(void)13 main(void) 14 { 15 bar (); 16 foo (); 17 xxx (); 18 if (counter == 1) 19 printf ("PASS\n"); 20 return 0; 21 } 22