HAVE_CLEAR_HISTORY 1736 ext/readline/readline.c #ifdef HAVE_CLEAR_HISTORY
HAVE_CLEAR_HISTORY 1949 ext/readline/readline.c #if defined HAVE_CLEAR_HISTORY || defined HAVE_REMOVE_HISTORY
HAVE_CLEAR_HISTORY 1961 ext/readline/readline.c #ifdef HAVE_CLEAR_HISTORY