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Diffstat (limited to 'devices/rinkj/rinkj-dither.h')
-rw-r--r--devices/rinkj/rinkj-dither.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/devices/rinkj/rinkj-dither.h b/devices/rinkj/rinkj-dither.h
index 2720d64e..815368c8 100644
--- a/devices/rinkj/rinkj-dither.h
+++ b/devices/rinkj/rinkj-dither.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2019 Artifex Software, Inc.
+/* Copyright (C) 2001-2020 Artifex Software, Inc.
All Rights Reserved.
This software is provided AS-IS with no warranty, either express or
@@ -13,6 +13,8 @@
CA 94945, U.S.A., +1(415)492-9861, for further information.
*/
+#ifndef rinkj_dither_h_INCLUDED
+#define rinkj_dither_h_INCLUDED
/* The dither object abstraction within the Rinkj driver. */
@@ -28,3 +30,5 @@ rinkj_dither_line (RinkjDither *self, unsigned char *dst, const unsigned char *s
void
rinkj_dither_close (RinkjDither *self);
+
+#endif