+static NCURSES_INLINE NCURSES_CH_T ClrBlank(NCURSES_SP_DCLx WINDOW *win);
+
+#if NCURSES_SP_FUNCS
+static int ClrBottom(SCREEN *, int total);
+static void ClearScreen(SCREEN *, NCURSES_CH_T blank);
+static void ClrUpdate(SCREEN *);
+static void DelChar(SCREEN *, int count);
+static void InsStr(SCREEN *, NCURSES_CH_T * line, int count);
+static void TransformLine(SCREEN *, int const lineno);
+#else