+AC_DEFINE(HAVE_SNPRINTF, 0, [Define if snprintf is available.])
+AC_DEFINE(HAVE_VSNPRINTF, 0, [Define if vsnprintf is available.])
+AC_DEFINE(HAVE_STDARG_H, 0, [Define if you have the <stdarg.h> header file.])
+AC_DEFINE(HAVE_NCURSES, 0, [Define if you have the <ncurses.h> header file.])
+