CMake: default CMAKE_INSTALL_PREFIX to /usr on Unix/Linux, instead of /usr/local, as that's where most systems expect their libraries to be.
CMake: default CMAKE_INSTALL_PREFIX to /usr on Unix/Linux, instead of /usr/local, as that's where most systems expect their libraries to be.

inilabs/libcaer,inilabs/libcaer,inilabs/libcaer,inilabs/libcaer