44 lines
1.4 KiB
CMake
44 lines
1.4 KiB
CMake
if(UNIX)
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# file1 => file2 => file3 (real)
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set(bindir ${CMAKE_CURRENT_BINARY_DIR})
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file(WRITE ${bindir}/file3 "test file")
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find_program(LN NAMES "ln")
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if(LN)
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# Create symlinks using "ln -s"
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if(NOT EXISTS ${bindir}/file2)
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execute_process(COMMAND ${LN} "-s" "${bindir}/file3" "${bindir}/file2")
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endif()
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if(NOT EXISTS ${bindir}/file1)
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execute_process(COMMAND ${LN} "-s" "${bindir}/file2" "${bindir}/file1")
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endif()
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get_filename_component(file1 ${bindir}/file1 ABSOLUTE)
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get_filename_component(file2 ${bindir}/file2 ABSOLUTE)
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get_filename_component(file3 ${bindir}/file3 ABSOLUTE)
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if(NOT file3 STREQUAL "${bindir}/file3")
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message(FATAL_ERROR "CMake fails resolving absolute file file3")
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endif()
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if(NOT file2 STREQUAL "${bindir}/file3")
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message(FATAL_ERROR "CMake fails resolving simple symlink")
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endif()
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if(NOT file1 STREQUAL "${bindir}/file3")
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message(FATAL_ERROR "CMake fails resolving double symlink")
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endif()
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# cleanup
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file(REMOVE ${bindir}/file1)
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file(REMOVE ${bindir}/file2)
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file(REMOVE ${bindir}/file3)
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if(EXISTS file1 OR EXISTS file2 OR EXISTS file3)
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message(FATAL_ERROR "removal of file1, file2, or file3 failed")
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endif()
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endif(LN)
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endif()
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