| // Without PCH | |
| // RUN: %clang_cc1 -fsyntax-only -verify %s -include %s -include %s | |
| // With PCH | |
| // RUN: %clang_cc1 -fsyntax-only -verify %s -chain-include %s -chain-include %s | |
| #ifndef HEADER1 | |
| #define HEADER1 | |
| @class I; | |
| #elif !defined(HEADER2) | |
| #define HEADER2 | |
| @interface I // expected-note {{previous}} | |
| @end | |
| #else | |
| typedef int I; // expected-error {{redefinition}} | |
| #endif |