CMP0048ΒΆ
Warning
The OLD behavior of this policy was removed
in CMake version 4.0.
This policy must be set to NEW by a call to
cmake_minimum_required() or cmake_policy().
The project() command manages VERSION variables.
CMake version 3.0 introduced the VERSION option of the project()
command to specify a project version as well as the name. In order to keep
PROJECT_VERSION and related variables consistent with variable
PROJECT_NAME it is necessary to set the VERSION variables
to the empty string when no VERSION is given to project().
However, this can change behavior for existing projects that set VERSION
variables themselves since project() may now clear them.
This policy controls the behavior for compatibility with such projects.
The OLD behavior for this policy is to leave VERSION variables untouched.
The NEW behavior for this policy is to set VERSION as documented by the
project() command.
This policy was introduced in CMake version 3.0.
Prior to removal in CMake version 4.0, it could be
set by cmake_policy() or cmake_minimum_required().
If it was not set, CMake warned, and used OLD behavior.