[CMake] SWIG generated .cxx file location issue.

[Hugh Sorby]

Finally, I have got around to this again.

My problem is that my swig files are a sibling directory of the python 
where the CMakeLists.txt file is so I specify the relative path using '..'
If I try and pass through the absolute path of the swig interface files 
I get a CMake error telling me it cannot find the source file!  It is 
trying to append the absolute path onto the current CMAKE_SOURCE_DIR.  
Which in my case is not a substring of the absolute source file string.

If my build tree is located anywhere else, then the directory 
../interface probably won't exist and the build will fail when it tries 
to compile an interface file.

Thanks for you suggestion Felix.

On 09/27/12 09:42, felix wrote:
> Hm strange.
> I use the swigmodule a lot and it creates my .cxx files in the binary-dir;
> but I have no relative path in the name of the
> interface file.
>
> Have you tried to use an absolute path like
>
> set(SRC_FILE ${CMAKE_SOURCE_DIR}/swig/interface/context.i)
>
> ?
> Relative paths are always a little bit cumbersome; what happens if your
> build tree is far away from the source tree?
>
> Felix
>
>
>
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