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 1c5c96d4230e002b6875752b4cbb87808a44b364)
@@ -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. */