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