| CMP0090 | |
| ------- | |
| .. versionadded:: 3.15 | |
| :command:`export(PACKAGE)` does not populate package registry by default. | |
| In CMake 3.14 and below the :command:`export(PACKAGE)` command populated the | |
| user package registry by default and users needed to set the | |
| :variable:`CMAKE_EXPORT_NO_PACKAGE_REGISTRY` to disable it, e.g. in automated | |
| build and packaging environments. Since the user package registry is stored | |
| outside the build tree, this side effect should not be enabled by default. | |
| Therefore CMake 3.15 and above prefer that :command:`export(PACKAGE)` does | |
| nothing unless an explicit :variable:`CMAKE_EXPORT_PACKAGE_REGISTRY` variable | |
| is set to enable it. This policy provides compatibility with projects that | |
| have not been updated. | |
| The ``OLD`` behavior for this policy is for :command:`export(PACKAGE)` command | |
| to populate the user package registry unless | |
| :variable:`CMAKE_EXPORT_NO_PACKAGE_REGISTRY` is enabled. | |
| The ``NEW`` behavior is for :command:`export(PACKAGE)` command to do nothing | |
| unless the :variable:`CMAKE_EXPORT_PACKAGE_REGISTRY` is enabled. | |
| This policy was introduced in CMake version 3.15. Use the | |
| :command:`cmake_policy` command to set it to ``OLD`` or ``NEW`` explicitly. | |
| Unlike most policies, CMake version |release| does *not* warn | |
| when this policy is not set and simply uses ``OLD`` behavior. | |
| .. include:: DEPRECATED.txt |