diff --git a/headers/posix/endian.h b/headers/posix/endian.h
new file mode 100644
index 0000000000..9403a51b86
--- /dev/null
+++ b/headers/posix/endian.h
@@ -0,0 +1,27 @@
+#ifndef _ENDIAN_H_
+#define _ENDIAN_H_
+/* 
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+/* Defines architecture dependent endian constants.
+ * The constant reflects the byte order, "4" is the most
+ * significant byte, "1" the least significant one.
+ */
+
+#if defined(__INTEL__)
+#	define LITTLE_ENDIAN	1234
+#	define BIG_ENDIAN		0
+#	define BYTE_ORDER		LITTLE_ENDIAN
+#elif defined(__POWERPC__)
+#	define BIG_ENDIAN		4321
+#	define LITTLE_ENDIAN	0
+#	define BYTE_ORDER		BIG_ENDIAN
+#endif
+
+#define __BIG_ENDIAN		BIG_ENDIAN
+#define __LITTLE_ENDIAN		LITTLE_ENDIAN
+#define __BYTE_ORDER		BYTE_ORDER
+
+#endif	/* _ENDIAN_H_ */