Index: kernel/generic/include/proc/thread.h
===================================================================
--- kernel/generic/include/proc/thread.h	(revision aae365bc823f3137811d2c48089c150e81c40606)
+++ kernel/generic/include/proc/thread.h	(revision 436a0a5d2cce1b5f7720cb379a4bd818e1599d4d)
@@ -225,5 +225,5 @@
 
 #ifndef thread_create_arch
-extern void thread_create_arch(thread_t *);
+extern errno_t thread_create_arch(thread_t *, thread_flags_t);
 #endif