# 
# 
# patch "tester.cc"
#  from [72086e113837df6e063ec10d31f4710947f5c235]
#    to [7b05bc7981e0f2bf7e1e38e5e1348460696d0d27]
# 
============================================================
--- tester.cc	72086e113837df6e063ec10d31f4710947f5c235
+++ tester.cc	7b05bc7981e0f2bf7e1e38e5e1348460696d0d27
@@ -435,6 +435,7 @@ LUAEXT(unset_env, )
       orig_env_vars.insert(make_pair(string(var), ""));
   }
   unsetenv(var);
+  return 0;
 }
 
 LUAEXT(timed_wait, )