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/* Test "ignore redundant include" facility.

   We must test with C and C++ comments, and null directives, outside

   the guard conditional; also, we test guarding with #ifndef and #if

   !defined.  -H is used because cpp might confuse the issue by

   optimizing out #line markers.  This test only passes if each of the

   headers is read exactly once.

   The disgusting regexp in the dg-error line, when stuck into

   dg.exp's compiler-output regexp, matches the correct -H output and

   only the correct -H output.  It has to be all on one line because

   otherwise it will not be interpreted all in one unit.  */

/* { dg-do compile }

   { dg-options "-H" }

   { dg-message "mi1c\.h\n\[^\n\]*mi1cc\.h\n\[^\n\]*mi1nd\.h\n\[^\n\]*mi1ndp\.h\n\[^\n\]*mi1x\.h" "redundant include check" { target *-*-* } 0 } */

#include "mi1c.h"

#include "mi1c.h"

#include "mi1c.h"

#include "mi1cc.h"

#include "mi1cc.h"

#include "mi1nd.h"

#include "mi1nd.h"

#include "mi1ndp.h"

#include "mi1ndp.h"

#define MIX_H

#include "mi1x.h"

#include "mi1x.h"

int

main (void)

{

  return a + b + c + d;

}