--- 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_SEARCH_LIBS(keypad, tinfo, [], [AC_MSG_ERROR([Could not find tinfo library])])
 
 # Checks for header files.
 AC_CHECK_HEADER(assert.h)