Index: uspace/lib/c/arch/ia64/include/libarch/fibril_context.h
===================================================================
--- uspace/lib/c/arch/ia64/include/libarch/fibril_context.h	(revision 09ab0a9afc9379f1604c0fd75cac2d9287ba022c)
+++ uspace/lib/c/arch/ia64/include/libarch/fibril_context.h	(revision 5cef3159956158dfd0a955f1af5bd8240db878b9)
@@ -76,4 +76,5 @@
 
 #include <stdint.h>
+#include <_bits/int128_t.h>
 
 // Only save registers that must be preserved across function calls.