depends gettext && optional_depends gdbm "" "" "gnu db support(old)" && optional_depends db "" "" "for Sleepycat db support" && optional_depends sqlite "" "" "for SQLite db support" && optional_depends tk "" "" "for Tk support" && optional_depends ncurses "" "" "for Ncurses support" && optional_depends readline "" "" "for Readline support" && optional_depends SSL "" "" "for SSL support" && optional_depends libffi "--with-system-ffi" "" "for _ctypes module" && optional_depends expat "--with-system-expat" "" "for XML parser module" && optional_depends valgrind \ "--with-valgrind" \ "--without-valgrind" \ "for Valgrind support" && optional_depends -sub CXX gcc \ "--with-cxx-main=g++" \ "--without-cxx-main" \ "for C++ module support"