14 files changed, 46 insertions, 14 deletions
diff --git a/devices/rinkj/evenbetter-rll.c b/devices/rinkj/evenbetter-rll.c
index 68f17114..5928704a 100644
--- a/devices/rinkj/evenbetter-rll.c
+++ b/devices/rinkj/evenbetter-rll.c
@@ -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
diff --git a/devices/rinkj/evenbetter-rll.h b/devices/rinkj/evenbetter-rll.h
index c8585ff3..3e1d7fa6 100644
--- a/devices/rinkj/evenbetter-rll.h
+++ b/devices/rinkj/evenbetter-rll.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
@@ -16,6 +16,9 @@
 
 /* Header file for testbed implementation of Even Better Screening. */
 
+#ifndef evenbetter_rll_h_INCLUDED
+#define evenbetter_rll_h_INCLUDED
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -101,3 +104,5 @@ eb_free_aligned(void *p);
 #ifdef __cplusplus
 }
 #endif
+
+#endif
diff --git a/devices/rinkj/rinkj-byte-stream.c b/devices/rinkj/rinkj-byte-stream.c
index 6019ec18..9f84ce96 100644
--- a/devices/rinkj/rinkj-byte-stream.c
+++ b/devices/rinkj/rinkj-byte-stream.c
@@ -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
diff --git a/devices/rinkj/rinkj-byte-stream.h b/devices/rinkj/rinkj-byte-stream.h
index d0cef54a..b2741088 100644
--- a/devices/rinkj/rinkj-byte-stream.h
+++ b/devices/rinkj/rinkj-byte-stream.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
@@ -14,6 +14,9 @@
 */
 
 
+#ifndef rinkj_byte_stream_h_INCLUDED
+#define rinkj_byte_stream_h_INCLUDED
+
 #include "gp.h"
 
 /* Bytestream abstraction for Rinkj driver. */
@@ -38,3 +41,5 @@ rinkj_byte_stream_close (RinkjByteStream *bs);
 
 RinkjByteStream *
 rinkj_byte_stream_file_new (gp_file *f);
+
+#endif
diff --git a/devices/rinkj/rinkj-config.c b/devices/rinkj/rinkj-config.c
index b1d563f0..4b084458 100644
--- a/devices/rinkj/rinkj-config.c
+++ b/devices/rinkj/rinkj-config.c
@@ -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
diff --git a/devices/rinkj/rinkj-config.h b/devices/rinkj/rinkj-config.h
index 77595955..716caa75 100644
--- a/devices/rinkj/rinkj-config.h
+++ b/devices/rinkj/rinkj-config.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
@@ -14,6 +14,9 @@
 */
 
 
+#ifndef rinkj_config_h_INCLUDED
+#define rinkj_config_h_INCLUDED
+
 /* Support for reading Rinkj config files. */
 
 char *
@@ -24,3 +27,5 @@ rinkj_config_get (const char *config, const char *key);
 
 char *
 rinkj_config_keyval (const char *config, char **p_val, const char **p_next);
+
+#endif
diff --git a/devices/rinkj/rinkj-device.c b/devices/rinkj/rinkj-device.c
index 112ffb47..43ba6f80 100644
--- a/devices/rinkj/rinkj-device.c
+++ b/devices/rinkj/rinkj-device.c
@@ -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
diff --git a/devices/rinkj/rinkj-device.h b/devices/rinkj/rinkj-device.h
index d5f9f775..c936711f 100644
--- a/devices/rinkj/rinkj-device.h
+++ b/devices/rinkj/rinkj-device.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_device_h_INCLUDED
+#define rinkj_device_h_INCLUDED
 
 /* The device abstraction within the Rinkj driver. */
 
@@ -53,3 +55,5 @@ rinkj_device_init (RinkjDevice *self, const RinkjDeviceParams *params);
 
 int
 rinkj_device_write (RinkjDevice *self, const char **data);
+
+#endif
diff --git a/devices/rinkj/rinkj-dither.c b/devices/rinkj/rinkj-dither.c
index 5e6247ee..f5a12844 100644
--- a/devices/rinkj/rinkj-dither.c
+++ b/devices/rinkj/rinkj-dither.c
@@ -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
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
diff --git a/devices/rinkj/rinkj-epson870.c b/devices/rinkj/rinkj-epson870.c
index 70102533..59d55f57 100644
--- a/devices/rinkj/rinkj-epson870.c
+++ b/devices/rinkj/rinkj-epson870.c
@@ -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
diff --git a/devices/rinkj/rinkj-epson870.h b/devices/rinkj/rinkj-epson870.h
index 2293737a..08f135f9 100644
--- a/devices/rinkj/rinkj-epson870.h
+++ b/devices/rinkj/rinkj-epson870.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
@@ -13,8 +13,12 @@
    CA 94945, U.S.A., +1(415)492-9861, for further information.
 */
 
+#ifndef rinkj_epson870_h_INCLUDED
+#define rinkj_epson870_h_INCLUDED
 
 /* A Rinkj driver for a number of variable-dot Epson devices. */
 
 RinkjDevice *
 rinkj_epson870_new (RinkjByteStream *out);
+
+#endif
diff --git a/devices/rinkj/rinkj-screen-eb.c b/devices/rinkj/rinkj-screen-eb.c
index b4b98bce..e6a9f779 100644
--- a/devices/rinkj/rinkj-screen-eb.c
+++ b/devices/rinkj/rinkj-screen-eb.c
@@ -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
diff --git a/devices/rinkj/rinkj-screen-eb.h b/devices/rinkj/rinkj-screen-eb.h
index 78044168..8b61fe35 100644
--- a/devices/rinkj/rinkj-screen-eb.h
+++ b/devices/rinkj/rinkj-screen-eb.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
@@ -14,6 +14,9 @@
 */
 
 
+#ifndef rinkj_screen_eb_h_INCLUDED
+#define rinkj_screen_eb_h_INCLUDED
+
 /* A Rinkj module encapsulating ETS screening. */
 
 RinkjDevice *
@@ -27,3 +30,5 @@ rinkj_screen_eb_set_gamma (RinkjDevice *self, int plane, double gamma, double ma
 
 void
 rinkj_screen_eb_set_lut (RinkjDevice *self, int plane, const double *lut);
+
+#endif