PEN_CHECKING_STYLE

 The   PEN_CHECKING_STYLE   attribute   selects    the    desired
 compile-time and link-time checking to perform when the generate
 environment file is inherited.

    PEN_CHECKING_STYLE( option )


     COMPILATION_TIME  Uses the compilation time of the environment
                       file in all subsequent compile-time and link-time
                       checking for users of this environment file.
                       This is the default.
     IDENT_STRING      Uses the [IDENT()] string of the environment file
                       in all subsequent compile-time and link-time
                       checking for users of this environment file.
     NONE              Disables all compile-time and link-time checking
                       for users of this environment file.