--- a/m4/curses.m4	2016-10-16 01:58:57.739207738 +0700
+++ b/m4/curses.m4	2016-10-16 01:59:04.610959120 +0700
@@ -32,7 +32,7 @@
     )
 
     AC_CHECK_LIB(ncurses, initscr,
-      [CURSES_LIBS="-lncurses"],
+      [CURSES_LIBS="-lncurses -ltinfo"],
       [AC_CHECK_LIB(curses, initscr,
         [CURSES_LIBS="-lcurses"],
         [AC_MSG_ERROR("curses libraries not found.")]