--- /dev/null
+--- a/configure.ac
++++ b/configure.ac
+@@ -76,7 +76,7 @@
+ AC_CHECK_LIB(m, cos, [], [AC_MSG_ERROR([Could not find m library])])
+ AC_CHECK_LIB(readline, using_history, [], [AC_MSG_ERROR([Could not find readline library])])
+ # ncurses might be linked in libtinfo
+-#AC_CHECK_LIB(tinfo, keypad, [], [AC_MSG_ERROR([Could not find tinfo library])])
++AC_CHECK_LIB(tinfo, keypad, [], [AC_MSG_ERROR([Could not find tinfo library])])
+
+ # Checks for header files.
+ AC_CHECK_HEADER(assert.h)