Index: uspace/lib/c/arch/amd64/include/types.h
===================================================================
--- uspace/lib/c/arch/amd64/include/types.h	(revision c53d90624940aafb20634e3c830f61e7551afe43)
+++ uspace/lib/c/arch/amd64/include/types.h	(revision 4ac901c75de3369e1bf6f3ed44dd3b48a7a630c1)
@@ -51,4 +51,5 @@
 typedef uint64_t size_t;
 
+typedef int64_t intptr_t;
 typedef uint64_t uintptr_t;
 typedef uint64_t atomic_count_t;