--- /dev/null
+/* Exim: OS-specific C header file for HI-OSF/1-MJ and HI-UX/MPP */
+
+#define HAVE_SYS_MOUNT_H
+
+typedef struct flock flock_t;
+#define F_FREESP O_TRUNC
+#define DN_EXPAND_ARG4_TYPE u_char *
+
+/* default is non-const */
+#define ICONV_ARG2_TYPE const char **
+
+/* End */