Index: uspace/lib/c/include/fibril.h
===================================================================
--- uspace/lib/c/include/fibril.h	(revision 4805495a910f793f8918c13f029a38a5bb548154)
+++ uspace/lib/c/include/fibril.h	(revision bc73be3215c832cdb0c8a5022db800902f9f62dc)
@@ -36,7 +36,10 @@
 #define _LIBC_FIBRIL_H_
 
-#include <types/common.h>
 #include <time.h>
+#include <_bits/errno.h>
 #include <_bits/__noreturn.h>
+#include <_bits/decls.h>
+
+__HELENOS_DECLS_BEGIN;
 
 typedef struct fibril fibril_t;
@@ -71,4 +74,6 @@
 extern __noreturn void fibril_exit(long);
 
+__HELENOS_DECLS_END;
+
 #endif