Adapt CMakeLists.txt to the way CPack actually works
Adapt CMakeLists.txt to the way CPack actually works

According to the comment[1] of the CMake developer, it is necessary to
explicitly set CMAKE_PACKAGIN_INSTALL_PREFIX.

[1] https://gitlab.kitware.com/cmake/cmake/merge_requests/827#note_267940

Change-Id: I3d2b774dd92eb140047a516fb11439db76cfd8c8

Softmotions/ejdb,achoy/ejdb,Softmotions/ejdb,achoy/ejdb,Softmotions/ejdb,Softmotions/ejdb,Softmotions/ejdb,Softmotions/ejdb,achoy/ejdb,Softmotions/ejdb,achoy/ejdb,Softmotions/ejdb