+$! determine whether to use malloc wrapping
+$ echo ""
+$ bool_dflt = "y"
+$ IF F$TYPE(usemallocwrap) .nes. ""
+$ then
+$ if .NOT. usemallocwrap .or. usemallocwrap .eqs. "undef" then bool_dflt = "n"
+$ endif
+$ rp = "Do you wish to wrap malloc calls to protect against potential overflows? [''bool_dflt'] "
+$ GOSUB myread
+$ IF ans
+$ THEN usemallocwrap = "define"
+$ ELSE usemallocwrap = "undef"
+$ ENDIF
+$!