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-rw-r--r--src/include/port/win32ntdll.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/include/port/win32ntdll.h b/src/include/port/win32ntdll.h
index 4d8808b3aaf..b29b06b91f9 100644
--- a/src/include/port/win32ntdll.h
+++ b/src/include/port/win32ntdll.h
@@ -11,6 +11,9 @@
*-------------------------------------------------------------------------
*/
+#ifndef WIN32NTDLL_H
+#define WIN32NTDLL_H
+
/*
* Because this includes NT headers that normally conflict with Win32 headers,
* any translation unit that includes it should #define UMDF_USING_NTSTATUS
@@ -25,3 +28,5 @@ typedef NTSTATUS (__stdcall *RtlGetLastNtStatus_t) (void);
extern RtlGetLastNtStatus_t pg_RtlGetLastNtStatus;
extern int initialize_ntdll(void);
+
+#endif /* WIN32NTDLL_H */