2 // RUN: %clang_cc1 -fsyntax-only -verify %s -include %s -include %s
5 // RUN: %clang_cc1 -fsyntax-only -verify %s -chain-include %s -chain-include %s
12 #elif !defined(HEADER2)
20 typedef int I; // expected-error {{redefinition}}
21 // expected-note@15 {{previous}}