[CMake] Nested variable substitution

[Andy Cedilnik]

Hi Andy,

Expanding "@FOO@" withing CMake list files was not intended feature and 
was removed in CMake 2.2. The @FOO@ is still used for configured files. 
In CMake list files you should really use ${FOO}.

       Andy

andrew.blose at kodak.com wrote:

>
>   FOREACH (MY_VAR FOO)
>     SET(FOO_DBL_EXP "BAR")
>     SET(MY_VAR_PRIME  "@${MY_VAR}_DBL_EXP@")
>     MESSAGE("MY_VAR_PRIME: ${MY_VAR_PRIME}")
>   ENDFOREACH (MY_VAR)
>
> Maybe I'm missing something obvious but...
>
> On the windows platform, why does the previous snippet of CMAKE code 
> generate:
>
> MY_VAR_PRIME: BAR
>
> with CMAKE invoked from the command line and
>
> MY_VAR_PRIME: @MY_VAR_PRIME@
>
> when invoked through CMakeSetup.exe?


-- 
Andy Cedilnik
Kitware Inc.