AC_CHECK_LIB(readline, readline)
if test "x${ac_cv_lib_readline_readline}" != "xyes"; then
GINAC_WARNING([I could not find libreadline (needed by ginsh).])
AC_CHECK_LIB(readline, readline)
if test "x${ac_cv_lib_readline_readline}" != "xyes"; then
GINAC_WARNING([I could not find libreadline (needed by ginsh).])