Index: uspace/lib/posix/include/posix/stdlib.h
===================================================================
--- uspace/lib/posix/include/posix/stdlib.h	(revision 4a3892bf694460fd12b415fc4e8b3be012d850d5)
+++ uspace/lib/posix/include/posix/stdlib.h	(revision 91e22dcf5c44d908b24ae2bcd292787f0a7b8d96)
@@ -56,5 +56,5 @@
 #define _Exit exit
 extern int __POSIX_DEF__(atexit)(void (*func)(void));
-extern void exit(int status);
+extern void exit(int status) __attribute__((noreturn));
 extern void abort(void) __attribute__((noreturn));