makefile now building and exec crashing

caml_src/step.ml

@@ -0,0 +1,19 @@
+(* Copyright (C) 2017 Sio Kreuzer. All Rights Reserved. *)
+
+let init () =
+    Printf.printf "Initializing Game module...\n";
+    flush stdout;;
+
+let shutdown () =
+    Printf.printf "Shutting down Game module...\n";
+    flush stdout;;
+
+let step () =
+    (* Printf.printf "bla\n"; *)
+    flush stdout;;
+
+(* main/init *)
+let () =
+    Callback.register "init_fn" init;
+    Callback.register "shutdown_fn" shutdown;
+    Callback.register "step_fn" step;;