CMP0172ΒΆ
Added in version 3.31.
The CPack module enables per-machine installation by default
in the CPack WIX Generator.
The CPack WIX Generator's CPACK_WIX_INSTALL_SCOPE
option controls the scope of the generated Windows Installer package.
When CPACK_WIX_VERSION is set to 4 or higher, the default scope
is perMachine. However, when using WIX 3 the default scope is NONE,
and CPack does not set any InstallScope in the package specification.
The resulting installer requires administrative privileges and installs
into the system-wide ProgramFiles directory, but the start menu entry
and uninstaller registration are created only for the current user.
The CPack module in CMake 3.30 and older does not specify any
CPACK_WIX_INSTALL_SCOPE value by default, so CPack uses no
installation scope by default with WIX 3. CMake 3.31 and newer instead
prefer to set CPACK_WIX_INSTALL_SCOPE to perMachine by
default to make the behavior consistent across all WIX versions. This
policy provides compatibility for projects that have not been updated
to expect perMachine behavior.
The OLD behavior for this policy is to not set
CPACK_WIX_INSTALL_SCOPE by default. The NEW behavior for
this policy is to set CPACK_WIX_INSTALL_SCOPE to perMachine
by default.
This policy was introduced in CMake version 3.31.
It may be set by cmake_policy() or cmake_minimum_required().
If it is not set, CMake does not warn by default, and uses OLD behavior.
See documentation of the
CMAKE_POLICY_WARNING_CMP0172
variable to control the warning.
Note
The OLD behavior of a policy is
deprecated by definition
and may be removed in a future version of CMake.