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diff --git a/sys/imio/iki/ikiopix.x b/sys/imio/iki/ikiopix.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<syserr.h>
+include	<imhdr.h>
+include	<imio.h>
+include	"iki.h"
+
+# IKI_OPIX -- Open or create the pixel storage file, if any.  We are called by
+# IMIO when i/o is first done to the image.  In the case of a new image, IMIO
+# will already have set up the IM_NDIM and IM_LEN fields of the image header.
+
+procedure iki_opix (im)
+
+pointer	im			#I image descriptor
+int	status
+include	"iki.com"
+
+begin
+	iferr (call zcall2 (IKI_OPIX(IM_KERNEL(im)), im, status))
+	    status = ERR
+	if (status == ERR)
+	    call syserrs (SYS_IKIOPIX, IM_NAME(im))
+end