[CMake] how to set current source directory relative to external project

[J Decker]

On Tue, Jul 9, 2019 at 9:38 AM hex <hex7c3 at gmail.com> wrote:

> thank you J Decker for your reply.
>
>
> Your suggestion does work but I want to preserve standalone use of the
> project, meaning that I want a reference to CMake source root directory.
>
> Assuming there is only 1 hierarchy I could add an option:
>
>
> if ( SUPERBUILD )
>
>     *message("${CMAKE_SOURCE_DIR}/.. = /home/user/super/ext1/..")*
>
> *else ()*
>
>     *message("${CMAKE_SOURCE_DIR} = /home/user/super/ext1")*
>
> endif ()
>
>
> I think the better solution now is to make it relative to build directory
> and force out of source builds.
>
>
> +1 I think; You said it was generated?  It should be in the build
directory anyway :)
And out of source always.  (makes it easier to source version control)


> On 09/07/2019 14:26, J Decker wrote:
>
>
>
> *message("${CMAKE_SOURCE_DIR}/.. = /home/user/super/ext1/..")*  which ==
> /home/user/super
>
>>
>>
>> --
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