+#include <sys/nearptr.h>
+
+#define virt_to_phys(v) ((v) + __djgpp_base_address)
+#define phys_to_virt(p) ((p) - __djgpp_base_address)
+
+#else /* not djgpp (basically watcom) */
+
+#define virt_to_phys(v) (v)
+#define phys_to_virt(p) (p)
+
+#endif /* __DJGPP__ */