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Diffstat (limited to 'Help/policy/CMP0048.rst')
| -rw-r--r-- | Help/policy/CMP0048.rst | 24 |
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diff --git a/Help/policy/CMP0048.rst b/Help/policy/CMP0048.rst new file mode 100644 index 000000000..0e7e60681 --- /dev/null +++ b/Help/policy/CMP0048.rst @@ -0,0 +1,24 @@ +CMP0048 +------- + +The :command:`project` command manages VERSION variables. + +CMake version 3.0 introduced the ``VERSION`` option of the :command:`project` +command to specify a project version as well as the name. In order to keep +:variable:`PROJECT_VERSION` and related variables consistent with variable +:variable:`PROJECT_NAME` it is necessary to set the VERSION variables +to the empty string when no ``VERSION`` is given to :command:`project`. +However, this can change behavior for existing projects that set VERSION +variables themselves since :command:`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 +:command:`project` command. + +This policy was introduced in CMake version 3.0. +CMake version |release| warns when the policy is not set and uses +OLD behavior. Use the cmake_policy command to set it to OLD or +NEW explicitly. + +.. include:: DEPRECATED.txt |