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85a945a607
In commit dd8365b3f1 (Merge branch 'upstream-KWSys' into update-kwsys,
2020-04-06, v3.18.0-rc1~397^2) we imported KWSys commit `019afb6ea`
(SystemTools: Drop GetCurrentWorkingDirectory 'collapse' argument,
2020-04-03). That caused `GetCurrentWorkingDirectory` to no longer send
paths through the KWSys translation map and broke CMake's detection of
the absolute path to a build directory containing a symbolic link.
Add our own `cmSystemTools::GetCurrentWorkingDirectory` wrapper around
the KWSys method in order to restore that mapping.
Test-case-by: Ben Boeckel <ben.boeckel@kitware.com>
Issue: #16228
Fixes: #20900
35 lines
1.3 KiB
CMake
35 lines
1.3 KiB
CMake
include(RunCMake)
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# This function assumes that ``${RunCMake_BINARY_DIR}/${name}/source`` and
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# ``${RunCMake_BINARY_DIR}/${name}/binary`` are set up properly prior to
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# calling it.
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function (run_symlink_test name)
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set(RunCMake_TEST_NO_CLEAN TRUE)
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configure_file(
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"${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt"
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"${RunCMake_BINARY_DIR}/${name}/source/CMakeLists.txt"
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COPYONLY)
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set(RunCMake_TEST_SOURCE_DIR "${RunCMake_BINARY_DIR}/${name}/source")
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set(RunCMake_TEST_BINARY_DIR "${RunCMake_BINARY_DIR}/${name}/binary")
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# Emulate a shell using this directory.
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set(ENV{PWD} "${RunCMake_TEST_BINARY_DIR}")
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set(RunCMake_TEST_OPTIONS
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"-Dinclude_dir:PATH=${CMAKE_CURRENT_LIST_DIR}")
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run_cmake("${name}_symlinks")
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endfunction ()
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# Create the following structure:
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#
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# .../common_real/source
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# .../common_real/binary
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# .../common -> common_real
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#
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# In this case, CMake should act as if .../common *is* .../common_real for all
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# computations except ``REALPATH``. This supports the case where a system has
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# a stable *symlink*, but not a stable target for that symlink.
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file(REMOVE_RECURSE "${RunCMake_BINARY_DIR}/common_real")
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file(REMOVE "${RunCMake_BINARY_DIR}/common")
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file(MAKE_DIRECTORY "${RunCMake_BINARY_DIR}/common_real/source")
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file(CREATE_LINK "common_real" "${RunCMake_BINARY_DIR}/common" SYMBOLIC)
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run_symlink_test(common)
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