open Lib;;
if false then raise Not_found;;
(**
0 CONSTINT 42
2 PUSHACC0
3 MAKEBLOCK1 0
5 POP 1
7 SETGLOBAL Lib
9 CONST0
10 BRANCHIFNOT 17
12 GETGLOBAL Not_found
14 MAKEBLOCK1 0
16 RAISE
17 ATOM0
18 SETGLOBAL T070-branchifnot
20 STOP
**)