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The user package registry populated by the `export()` command causes side effects outside the build and source directories. Such effects should be opt-in rather than op-out. Introduce a policy to change default behavior of `export(PACKAGE)` to do nothing.
17 lines
621 B
ReStructuredText
17 lines
621 B
ReStructuredText
CMAKE_EXPORT_NO_PACKAGE_REGISTRY
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Disable the :command:`export(PACKAGE)` command when :policy:`CMP0090`
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is not set to ``NEW``.
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In some cases, for example for packaging and for system wide
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installations, it is not desirable to write the user package registry.
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If the ``CMAKE_EXPORT_NO_PACKAGE_REGISTRY`` variable is enabled,
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the :command:`export(PACKAGE)` command will do nothing.
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If :policy:`CMP0090` is set to ``NEW`` this variable does nothing, and the
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:variable:`CMAKE_EXPORT_PACKAGE_REGISTRY` variable controls the behavior
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instead.
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See also :ref:`Disabling the Package Registry`.
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