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diff --git a/x11proto/Xarch.h b/x11proto/Xarch.h
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+#ifndef _XARCH_H_
+# define _XARCH_H_
+
+/*
+ * Copyright 1997 Metro Link Incorporated
+ *
+ * All Rights Reserved
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the names of the above listed copyright holder(s)
+ * not be used in advertising or publicity pertaining to distribution of
+ * the software without specific, written prior permission. The above listed
+ * copyright holder(s) make(s) no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ *
+ * THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
+ * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
+ * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+/*
+ * Determine the machine's byte order.
+ */
+
+/* See if it is set in the imake config first */
+# ifdef X_BYTE_ORDER
+
+# define X_BIG_ENDIAN 4321
+# define X_LITTLE_ENDIAN 1234
+
+# else
+
+# if defined(SVR4) || defined(__SVR4)
+# include <sys/byteorder.h>
+# elif defined(CSRG_BASED)
+# if defined(__NetBSD__) || defined(__OpenBSD__)
+# include <sys/types.h>
+# endif
+# include <machine/endian.h>
+# elif defined(linux)
+# if defined __STRICT_ANSI__
+# undef __STRICT_ANSI__
+# include <endian.h>
+# define __STRICT_ANSI__
+# else
+# include <endian.h>
+# endif
+/* 'endian.h' might have been included before 'Xarch.h' */
+# if !defined(LITTLE_ENDIAN) && defined(__LITTLE_ENDIAN)
+# define LITTLE_ENDIAN __LITTLE_ENDIAN
+# endif
+# if !defined(BIG_ENDIAN) && defined(__BIG_ENDIAN)
+# define BIG_ENDIAN __BIG_ENDIAN
+# endif
+# if !defined(PDP_ENDIAN) && defined(__PDP_ENDIAN)
+# define PDP_ENDIAN __PDP_ENDIAN
+# endif
+# if !defined(BYTE_ORDER) && defined(__BYTE_ORDER)
+# define BYTE_ORDER __BYTE_ORDER
+# endif
+# endif
+
+# ifndef BYTE_ORDER
+# define LITTLE_ENDIAN 1234
+# define BIG_ENDIAN 4321
+
+# if defined(__sun) && defined(__SVR4)
+# include <sys/isa_defs.h>
+# ifdef _LITTLE_ENDIAN
+# define BYTE_ORDER LITTLE_ENDIAN
+# endif
+# ifdef _BIG_ENDIAN
+# define BYTE_ORDER BIG_ENDIAN
+# endif
+# endif /* sun */
+# endif /* BYTE_ORDER */
+
+# define X_BYTE_ORDER BYTE_ORDER
+# define X_BIG_ENDIAN BIG_ENDIAN
+# define X_LITTLE_ENDIAN LITTLE_ENDIAN
+
+# endif /* not in imake config */
+
+#endif /* _XARCH_H_ */