disable exeptions in cmake

3rd/LuaBridge/detail/Userdata.h

@@ -33,6 +33,7 @@
 
 #include <cassert>
 #include <stdexcept>
+#include <iostream>
 
 
 namespace luabridge {
@@ -320,7 +321,8 @@ public:
     lua_rawgetp (L, LUA_REGISTRYINDEX, ClassInfo <T>::getClassKey ());
     if (!lua_istable (L, -1))
     {
-      throw std::logic_error ("The class is not registered in LuaBridge");
+      std::cerr << ("The class is not registered in LuaBridge");
+		assert(true);
     }
     lua_setmetatable (L, -2);
     return ud;
@@ -375,7 +377,8 @@ private:
     lua_rawgetp (L, LUA_REGISTRYINDEX, key);
     if (!lua_istable (L, -1))
     {
-      throw std::logic_error ("The class is not registered in LuaBridge");
+      std::cerr << ("The class is not registered in LuaBridge");
+		assert(true);
     }
     lua_setmetatable (L, -2);
   }