On Tue, Jul 9, 2019 at 5:35 AM hex <hex...@gmail.com> wrote:
> hello CMake community,
>
>
> I am experimenting with external projects. I have some files in an
> external project which are generated in `${CMAKE_SOURCE_DIR}`.
>
>
> When I add the external project, however, it is using
> `${CMAKE_SOURCE_DIR}` of the external project.
>
>
> I need `${CMAKE_SOURCE_DIR}` to be relative to the "super build", instead
> of the external project path.
>
>
> Example:
>
> *message("${CMAKE_SOURCE_DIR} = /home/user/super")*
>
> *ExternalProject_Add(ext1*
> * # directory options*
> * SOURCE_DIR "${CMAKE_SOURCE_DIR}/ext1"*
> *)*
>
>
> ${CMAKE_SOURCE_DIR}/ext1/CMakeLists.txt:
>
>
> *message("${CMAKE_SOURCE_DIR} = /home/user/super/ext1")*
>
*message("${CMAKE_SOURCE_DIR}/.. = /home/user/super/ext1/..")* which ==
/home/user/super
>
>
>
> The desired outcome would be to have the path /home/user/super in both
> messages.
> How can I do this?
>
>
> thank you
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