CMake/Help/variable/CMAKE_EXPORT_NO_PACKAGE_REGISTRY.rst
Daniele E. Domenichelli be8ae96098 Allow the Package Registry to be disabled (#14849)
When a project is packaged for redistribution the local package
registries should not be updated or consulted.  They are for developers.

Add variables to disable use of package registries globally:

* CMAKE_EXPORT_NO_PACKAGE_REGISTRY that disables the export(PACKAGE)
  command
* CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY that disables the User Package
  Registry in all the find_package calls.
* CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY that disables the
  System Package Registry in all the find_package calls.

Update documentation and unit tests.
2014-05-12 09:50:01 -04:00

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CMAKE_EXPORT_NO_PACKAGE_REGISTRY
--------------------------------
Disable the :command:`export(PACKAGE)` command.
In some cases, for example for packaging and for system wide
installations, it is not desirable to write the user package registry.
If the :variable:`CMAKE_EXPORT_NO_PACKAGE_REGISTRY` variable is enabled,
the :command:`export(PACKAGE)` command will do nothing.
See also :ref:`Disabling the Package Registry`.