find_package: Document CMAKE_FIND_PACKAGE_NAME variable
Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
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@ -312,6 +312,8 @@ When loading a find module or package configuration file ``find_package``
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defines variables to provide information about the call arguments (and
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restores their original state before returning):
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``CMAKE_FIND_PACKAGE_NAME``
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the ``<package>`` name which is searched for
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``<package>_FIND_REQUIRED``
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true if ``REQUIRED`` option was given
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``<package>_FIND_QUIETLY``
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