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-rw-r--r--win/tclWinPort.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/win/tclWinPort.h b/win/tclWinPort.h
index 16a784c..d94bfda 100644
--- a/win/tclWinPort.h
+++ b/win/tclWinPort.h
@@ -588,4 +588,8 @@
#define INVALID_SET_FILE_POINTER 0xFFFFFFFF
#endif /* INVALID_SET_FILE_POINTER */
+#ifndef LABEL_SECURITY_INFORMATION
+# define LABEL_SECURITY_INFORMATION (0x00000010L)
+#endif
+
#endif /* _TCLWINPORT */