[CMake] New type of cache variable: lists

[Robert Dailey]

Thanks for that info David.

I have to say that the way this is setup feels kind of duct-taped together.
I expected the documentation for such a feature to be under 'set' in the
docs, but it wasn't. Plus the option in the list that is the default must
be specified in 2 different locations. I think a cleaner solution could be
implemented:

set( BaseName "binary;octal;decimal;hexidecimal" CACHE LIST "Documentation"
)

The first item in the list would be the default.

Wouldn't this work and be slightly cleaner and more straight-forward? Plus
you could keep the documentation for this feature contained to the 'set'
command in the docs like other cache variable types. I just don't think
lists should be handled differently.

---------
Robert Dailey


On Tue, Dec 6, 2011 at 3:32 PM, David Cole <david.cole at kitware.com> wrote:

> On Tue, Dec 6, 2011 at 4:26 PM, David Doria <daviddoria at gmail.com> wrote:
> > On Tue, Dec 6, 2011 at 4:19 PM, Robert Dailey <rcdailey at gmail.com>
> wrote:
> >> Has anyone thought of creating a "LIST" type for cache variables? In
> CMake
> >> GUI on Windows, this would be represented by a combo-box or drop-down
> box
> >> that allows the user to pick one item out of a list of available items.
> >>
> >> Is this possible?
> >
> > I definitely agree. An immediate use case is for the CMAKE_BUILD_TYPE
> > variable. I added a feature request here a while back:
> > http://public.kitware.com/Bug/view.php?id=11806
> >
> > David
> > --
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> From that bug report:
>
>  For cmake-gui this can be done by setting the STRINGS property of
> the cache entry:
>  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
> "DEBUG;RELEASE;MY_BUILD_TYPE")
>
> And here's a blog about that feature:
>
>  http://www.kitware.com/blog/home/post/82
>
> So, yes, Robert, it is possible. And David D., I'm not sure how we
> could make it automatic as you request in the bug report.
>
>
> HTH,
> David C.
>
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