I think you probably wanted to write and call your function like this:
FUNCTION(build var)
MESSAGE(STATUS "var: ${var}")
ENDFUNCTION(build)
SET(var red blue yellow green)
build("${var}")
That prints out as you would expect:
-- var: red;blue;yellow;green
--
Glenn
On 12 May 2011 07:27, Rolf Eike Beer <e...@sf-mail.de> wrote:
> > This is funny:
> > FUNCTION(build var)
> > MESSAGE(STATUS "var: " ${${var}})
> > ENDFUNCTION(build)
> >
> > SET(var red blue yellow green)
> > build(var)
> >
> > Output:
> > -- var: var
> >
> > SET(varX red blue yellow green)
> > build(varX)
> > Output:
> > -- var: redblueyellowgreen
>
> No, it must be that way. Inside build() var is defined as the variable
> that is defined in the interface. build() has no way to see the variable
> outside it because it can only find the inner name. It could reference
> it's value if you had passed the value or it could reference the variable
> by name if it would not be hidden by your interface variable.
>
> int a = 2;
>
> int build(int a)
> {
> return a;
> }
>
> int b = build(42);
>
> b will be 42.
>
> Eike
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