If you install whatever is not excluded you also install all this files:
```
/usr/lib64/grape/launchpad/Makefile
/usr/lib64/grape/launchpad/CMakeFiles
/usr/lib64/grape/launchpad/CMakeFiles/progress.marks
/usr/lib64/grape/launchpad/CMakeFiles/CMakeDirectoryInformation.cmake
/usr/lib64/grape/launchpad/cmake_install.cmake
```
I'm not sure if you really want to have them packaged