Fix modified-header-crash.c for read-only source trees
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130359 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/PCH/modified-header-crash.c b/test/PCH/modified-header-crash.c
index cb403f0..d46f976 100644
--- a/test/PCH/modified-header-crash.c
+++ b/test/PCH/modified-header-crash.c
@@ -1,7 +1,8 @@
// Don't crash.
-// RUN: %clang_cc1 -DCAKE -x c-header %S/modified-header-crash.h -emit-pch -o %t
-// RUN: touch %S/modified-header-crash.h
+// RUN: cp %S/modified-header-crash.h %t.h
+// RUN: %clang_cc1 -DCAKE -x c-header %t.h -emit-pch -o %t
+// RUN: echo >> %t.h
// RUN: not %clang_cc1 %s -include-pch %t -fsyntax-only
// FIXME: On Windows we don't detect that the header was modified ?