Add missing documentation for include dirs related variables. (#12611)
Document CMAKE_INCLUDE_DIRECTORIES_BEFORE and CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE.
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@ -19,7 +19,7 @@ used by the generators.
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By default the directories are appended onto the current list of
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directories. This default behavior can be changed by setting
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CMAKE_INCLUDE_DIRECTORIES_BEFORE to ON. By using AFTER or BEFORE
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:variable:`CMAKE_INCLUDE_DIRECTORIES_BEFORE` to ON. By using AFTER or BEFORE
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explicitly, you can select between appending and prepending,
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independent of the default.
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@ -97,6 +97,8 @@ Variables that Change Behavior
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/variable/CMAKE_FIND_NO_INSTALL_PREFIX
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/variable/CMAKE_IGNORE_PATH
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/variable/CMAKE_INCLUDE_PATH
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/variable/CMAKE_INCLUDE_DIRECTORIES_BEFORE
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/variable/CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE
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/variable/CMAKE_INSTALL_DEFAULT_COMPONENT_NAME
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/variable/CMAKE_INSTALL_PREFIX
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/variable/CMAKE_LIBRARY_PATH
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@ -0,0 +1,8 @@
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CMAKE_INCLUDE_DIRECTORIES_BEFORE
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--------------------------------
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Whether to append or prepend directories by default in :command:`include_directories`.
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This variable affects the default behavior of the :command:`include_directories`
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command. Setting this variable to 'ON' is equivalent to using the BEFORE option
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in all uses of that command.
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@ -0,0 +1,8 @@
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CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE
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----------------------------------------
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Whether to force prepending of project include directories.
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This variable affects the order of include directories generated in compiler
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command lines. If set to 'ON', it causes the :variable:`CMAKE_SOURCE_DIR` and
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the :variable:`CMAKE_BINARY_DIR` to appear first.
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