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https://gitlab.kitware.com/cmake/cmake.git
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Alexandru Croitor
d568b3fa47
When comparing if a candidate path is already a subdirectory of a root path, we should compare the real paths, to ensure we canonicalize the paths. Fixes: #27493
51 lines
2.0 KiB
CMake
51 lines
2.0 KiB
CMake
set(regular_root "${CMAKE_CURRENT_SOURCE_DIR}/FindRootPathAndPrefixPathAreEqual")
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set(regular_prefix "${regular_root}/lib/cmake")
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# 'emptydir' must be a real dir on the file system, otherwise CMake
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# won't canonicalize the path when getting resolving the real path.
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set(dotted_root "${regular_root}/emptydir/..")
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set(dotted_prefix "${dotted_root}/lib/cmake")
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE "ONLY")
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# Case with no '..' in the paths
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set(CMAKE_FIND_ROOT_PATH "${regular_root}")
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set(CMAKE_PREFIX_PATH "${regular_prefix}")
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message(STATUS "Looking for Foo without '..' in the paths")
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find_package(Foo
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REQUIRED
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CONFIG
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NO_CMAKE_ENVIRONMENT_PATH
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NO_SYSTEM_ENVIRONMENT_PATH
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# Important because CMAKE_SYSTEM_PREFIX_PATH might contain "/" as a prefix
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# And when "/" is rerooted onto the root above, the package is found even if
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# CMAKE_PREFIX_PATH is empty. We want to ensure that we hit
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# the CMAKE_FIND_ROOT_PATH == CMAKE_PREFIX_PATH code path.
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NO_CMAKE_SYSTEM_PATH
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)
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if(Foo_FOUND)
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message(STATUS "Foo found for case without '..' in the paths")
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endif()
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# Unset the cache variable to find the package again.
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unset(Foo_DIR CACHE)
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# Case with '..' in the paths
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set(CMAKE_FIND_ROOT_PATH "${dotted_root}")
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set(CMAKE_PREFIX_PATH "${dotted_prefix}")
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message(STATUS "Looking for Foo with '..' in the paths")
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find_package(Foo
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REQUIRED
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CONFIG
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NO_CMAKE_ENVIRONMENT_PATH
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NO_SYSTEM_ENVIRONMENT_PATH
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# Important because CMAKE_SYSTEM_PREFIX_PATH might contain "/" as a prefix
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# And when "/" is rerooted onto the root above, the package is found even if
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# CMAKE_PREFIX_PATH is empty. We want to ensure that we hit
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# the CMAKE_FIND_ROOT_PATH == CMAKE_PREFIX_PATH code path.
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NO_CMAKE_SYSTEM_PATH
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)
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if(Foo_FOUND)
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message(STATUS "Foo found for case with '..' in the paths")
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endif()
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