1 /* Some incompatible external linkage declarations were not diagnosed.
2    Bug 21342.  */
3 /* Origin: Joseph Myers <joseph@codesourcery.com> */
4 /* { dg-do compile } */
5 /* { dg-options "" } */
6 
7 extern int a[];
f(void)8 void f(void) { extern int a[10]; } /* { dg-message "note: previous declaration of 'a' was here" } */
9 extern int a[5]; /* { dg-error "conflicting types for 'a'" } */
10