UnixPaths.cmake adds / to CMAKE_SYSTEM_PREFIX_PATH
I noticed that / is added to the CMAKE_SYSTEM_PREFIX_PATH. This caused me some confusion, because a find_package call in the project I was building was picking up CMake files in old build directory I had laying around in /home rather than in ${CMAKE_INSTALL_PREFIX} where I expected. It also seems like adding / here makes any paths added after it irrelevant. Was this done intentionally?