+### use option --disable-wattr-macros to suppress wattr* macros from curses.h
+AC_MSG_CHECKING(if you want to suppress wattr* macros to help with ncurses5/ncurses6 transition)
+AC_ARG_ENABLE(wattr-macros,
+ [ --disable-wattr-macros suppress wattr* macros to help with ncurses5/ncurses6 transition],
+ [with_wattr_macros=$enableval],
+ [with_wattr_macros=yes])
+if [[ "x$with_wattr_macros" != xyes ]]; then
+ NCURSES_WATTR_MACROS=0
+ AC_MSG_RESULT(yes)
+else
+ NCURSES_WATTR_MACROS=1
+ AC_MSG_RESULT(no)
+fi
+AC_SUBST(NCURSES_WATTR_MACROS)
+