Index: uspace/lib/c/arch/amd64/include/types.h
===================================================================
--- uspace/lib/c/arch/amd64/include/types.h	(revision c06994673347954891a57710998cf1e087a59e8b)
+++ uspace/lib/c/arch/amd64/include/types.h	(revision 7e10aeee595bef589e5cf5c2e172243469e0c4f6)
@@ -52,4 +52,5 @@
 
 typedef uint64_t uintptr_t;
+typedef int64_t intptr_t;
 typedef uint64_t atomic_count_t;
 typedef int64_t atomic_signed_t;