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30 lines
1.4 KiB
30 lines
1.4 KiB
The CMake variable :variable:`CMAKE_FIND_ROOT_PATH` specifies one or more
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directories to be prepended to all other search directories. This
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effectively "re-roots" the entire search under given locations.
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Paths which are descendants of the :variable:`CMAKE_STAGING_PREFIX` are excluded
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from this re-rooting, because that variable is always a path on the host system.
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By default the :variable:`CMAKE_FIND_ROOT_PATH` is empty.
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The :variable:`CMAKE_SYSROOT` variable can also be used to specify exactly one
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directory to use as a prefix. Setting :variable:`CMAKE_SYSROOT` also has other
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effects. See the documentation for that variable for more.
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These variables are especially useful when cross-compiling to
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point to the root directory of the target environment and CMake will
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search there too. By default at first the directories listed in
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:variable:`CMAKE_FIND_ROOT_PATH` are searched, then the :variable:`CMAKE_SYSROOT`
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directory is searched, and then the non-rooted directories will be
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searched. The default behavior can be adjusted by setting
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|CMAKE_FIND_ROOT_PATH_MODE_XXX|. This behavior can be manually
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overridden on a per-call basis using options:
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``CMAKE_FIND_ROOT_PATH_BOTH``
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Search in the order described above.
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``NO_CMAKE_FIND_ROOT_PATH``
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Do not use the :variable:`CMAKE_FIND_ROOT_PATH` variable.
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``ONLY_CMAKE_FIND_ROOT_PATH``
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Search only the re-rooted directories and directories below
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:variable:`CMAKE_STAGING_PREFIX`.
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