Re: make: new modifyer :Y

[Alan Barrett <apb%cequrux.com@localhost>]

On Sun, 06 Nov 2011, Aleksey Cheusov wrote:
> with a more elegant
>
>  .if ${MKXXX:Y}
>  .endif

I am not opposed to :Y, but I note that you can already get most 
of what you are looking for without changing make(1) at all.  For 
example, you could put a definition like this in a global include 
file like bsd.sys.mk:

        ISTRUE = Uno:M[Yy][Ee][Ss]

and then you can use it like this:

        demo:
        .if ${FOO:${ISTRUE}}
                @echo FOO is true
        .else
                @echo FOO is not true
        .endif

--apb (Alan Barrett)