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include(RunCMake)
# This function assumes that ``${RunCMake_BINARY_DIR}/${name}/source`` and
# ``${RunCMake_BINARY_DIR}/${name}/binary`` are set up properly prior to
# calling it.
function (run_symlink_test name)
set(RunCMake_TEST_NO_CLEAN TRUE)
configure_file(
"${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt"
"${RunCMake_BINARY_DIR}/${name}/source/CMakeLists.txt"
COPYONLY)
set(RunCMake_TEST_SOURCE_DIR "${RunCMake_BINARY_DIR}/${name}/source")
set(RunCMake_TEST_BINARY_DIR "${RunCMake_BINARY_DIR}/${name}/binary")
# Emulate a shell using this directory.
set(ENV{PWD} "${RunCMake_TEST_BINARY_DIR}")
set(RunCMake_TEST_OPTIONS
"-Dinclude_dir:PATH=${CMAKE_CURRENT_LIST_DIR}")
run_cmake("${name}_symlinks")
endfunction ()
# Create the following structure:
#
# .../common_real/source
# .../common_real/binary
# .../common -> common_real
#
# In this case, CMake should act as if .../common *is* .../common_real for all
# computations except ``REALPATH``. This supports the case where a system has
# a stable *symlink*, but not a stable target for that symlink.
file(REMOVE_RECURSE "${RunCMake_BINARY_DIR}/common_real")
file(REMOVE "${RunCMake_BINARY_DIR}/common")
file(MAKE_DIRECTORY "${RunCMake_BINARY_DIR}/common_real/source")
file(CREATE_LINK "common_real" "${RunCMake_BINARY_DIR}/common" SYMBOLIC)
run_symlink_test(common)
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