Index: kernel/arch/ia64/include/arch/types.h
===================================================================
--- kernel/arch/ia64/include/arch/types.h	(revision 63e27efdf2fe6d3fa02bbb5ee1da00df5cc07e9d)
+++ kernel/arch/ia64/include/arch/types.h	(revision a4fb8d60ffb2469744f8d1f6fad67fae13d69fcd)
@@ -55,7 +55,4 @@
 } __attribute__((may_alias)) fncptr_t;
 
-#define INTN_C(c)   INT64_C(c)
-#define UINTN_C(c)  UINT64_C(c)
-
 #define PRIdn  PRId64  /**< Format for native_t. */
 #define PRIun  PRIu64  /**< Format for sysarg_t. */