CMP0042¶
MACOSX_RPATH is enabled by default.
CMake 2.8.12 and newer has support for using @rpath in a target’s install
name. This was enabled by setting the target property
MACOSX_RPATH. The @rpath in an install name is a more
flexible and powerful mechanism than @executable_path or @loader_path
for locating shared libraries.
CMake 3.0 and later prefer this property to be ON by default. Projects
wanting @rpath in a target’s install name may remove any setting of
the INSTALL_NAME_DIR and CMAKE_INSTALL_NAME_DIR
variables.
This policy was introduced in CMake version 3.0. CMake version
3.19.4 warns when the policy is not set and uses OLD behavior. Use
the cmake_policy() command to set it to OLD or NEW explicitly.
Note
The OLD behavior of a policy is
deprecated by definition
and may be removed in a future version of CMake.