[CMake] How to report deprecated functionalities (subdirs, install_files...)

[Alexander Neundorf]

On Thursday 16 July 2009, Mathieu Malaterre wrote:
> On Thu, Jul 16, 2009 at 5:01 PM, Mathieu
>
> Malaterre<mathieu.malaterre at gmail.com> wrote:
> > On Thu, Jul 16, 2009 at 4:58 PM, Michael
> >
> > Jackson<mike.jackson at bluequartz.net> wrote:
> >> On Jul 16, 2009, at 10:41 AM, Mathieu Malaterre wrote:
> >>> On Thu, Jul 16, 2009 at 4:32 PM, David Cole<david.cole at kitware.com> 
wrote:
> >>>> There is not a built-in method of identifying code like that, although
> >>>> that
> >>>> would be a good feature request. Especially if it had a patch attached
> >>>> to it... :-)
> >>>
> >>> I can open a feature request :-)
> >>>
> >>>> You could try this at the top of your CMakeLists.txt file:
> >>>> function(SUBDIRS)
> >>>>  message(FATAL_ERROR "error: using deprecated SUBDIRS")
> >>>> endfunction()
> >>>> Does CMake give you line number information if you create such a
> >>>> function?
> >>>
> >>> Yup, it does.
> >>>
> >>>
> >>> CMake Error at CMakeLists.txt:14 (message):
> >>>  error: using deprecated SUBDIRS
> >>> Call Stack (most recent call first):
> >>>  CMakeLists.txt:175 (SUBDIRS)
> >>>
> >>> The second one is the one you are looking for, so this should work. I
> >>> just need to know how to pass Warning/Error to cdash now :)
> >>>
> >>> Thanks,
> >>> --
> >>> Mathieu
> >>
> >> This is from 2.6.4 list of "Compatibility Commands". I would say put
> >> this into a file called "CheckDeprecated.cmake" and include it into your
> >> top level project?
> >>
> >>
> >> function(build_name)
> >>  message(FATAL_ERROR "error: using deprecated build_name")
> >> endfunction()
> >
> > <...>
> >
> > Awesome ! Thank you very much :)
>
> I thought I would be able to use a warning instead of an error, now
> that I know how to report it to cdash, but the following fails ...
> recursively :)
>
> function(SUBDIRS)
>   message(STATUS "Warning: using deprecated SUBDIRS")
>   SUBDIRS( ${ARGV} )
> endfunction()

The overridden command gets an underscore prepended, so you can call 
_subdirs() to get the original one.

Alex