--- ./mdport.c    2016-07-23 11:24:54.000000000 +0900
+++ ./mdport.c    2021-04-10 21:46:28.000004331 +0900
@@ -84,6 +84,7 @@
 #include <curses.h> /* AIX requires curses.h be included before term.h */

 #if defined(HAVE_TERM_H)
+#define NCURSES_INTERNALS
 #include <term.h>
 #elif defined(HAVE_NCURSES_TERM_H)
 #include <ncurses/term.h>