[CMake] Question about PARENT_SCOPE

[Clinton Stimpson]

On Monday 03 May 2010 12:42:58 pm Benoit Thomas wrote:
> Hello,
> 
> Is it possible to do something like this (sorry if there are typos):
> 
> function (bar v scope)
>      set (v 1 GRAND_PARENT_SCOPE)
> endfunction()
> 
> function (foo v)
>      bar (${v} PARENT_SCOPE)
> endfunction()
> 
> foo (v)
> message ("${v} == 1")
> 
> If it's not possible, I'll go with global variables. Currently, I do
> global variables by doing:
> 
> set (v 1 CACHE INTERNAL "" FORCE)
> 
> But is there a better way ?


Did you mean like this?

function (bar v)
  set (${v} 1 PARENT_SCOPE)
endfunction()

function (foo v)
  bar(v1)
  set(${v} ${v1} PARENT_SCOPE)
endfunction()

foo (v)
message ("${v} == 1")

Clint