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/* This is allowed, with the effect that the 'extern' declaration at block

   scope refers to the same object as the 'static' declaration at file scope.

      C90 6.1.2.2 [as corrected by TC1], C99 6.2.2:

          For an identifier declared with the storage-class specifier

          extern in a scope in which a prior declaration of that

          identifier is visible, if the prior declaration specifies

          internal or external linkage, the linkage of the identifier at

          the later daclaration is the same as the linkage specified at

          the prior declaration.  If no prior declaration is visible,

          or if the prior declaration specifies no linkage, then the

          identifer has external linkage.

   This is PR 14366.  */

static int i;

extern int i;

static void f() {

  extern int i;

}