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 expat "" "" "for XML parser module" &&
optional_depends openssl "" "" "for SSL support" &&

optional_depends g++ \
                 "--with-cxx-main=g++" \
                 "--without-cxx-main" \
                 "for C++ module support"
