LINK_WHAT_YOU_USE

This is a boolean option that when set to TRUE will automatically run ldd -r -u on the target after it is linked. In addition, the linker flag -Wl,--no-as-needed will be passed to the target with the link command so that all libraries specified on the command line will be linked into the target. This will result in the link producing a list of libraries that provide no symbols used by this target but are being linked to it. This is only applicable to executable and shared library targets and will only work when ld and ldd accept the flags used.

This property is initialized by the value of the CMAKE_LINK_WHAT_YOU_USE variable if it is set when a target is created.