including libraries.. into libraries

nive. so i added the LiquidCrystal lcd; statement among all the other declarations in the MenuLCD.h, then, i modified my MenuLCD.cpp constructor like this:

MenuLCD::MenuLCD(byte rs, byte enable, byte d4, byte d5, byte d6, byte d7, String intro, MenuItem _menu), lcd(rs, enable, d4, d5, d6, d7)
{
  // inizializza le variabili della navigazione
  current_menu = 0;
  current_sel = 1;
  sthToDo = false;
  [all the rest]

but the compiler says:

MenuLCD.cpp:8: error: declaration of 'MenuLCD::MenuLCD(byte, byte, byte, byte, byte, byte, String, MenuLCD::MenuItem)' outside of class is not definition
MenuLCD.cpp:8: error: expected constructor, destructor, or type conversion before '(' token