[136] | 1 | # The utility function DetermineOSVersion aims at providing an
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| 2 | # improved version of the CMake variable ${CMAKE_SYSTEM} on Windows
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| 3 | # machines.
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| 4 | #
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| 5 | # Usage:
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| 6 | # include(EigenDetermineOSVersion)
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| 7 | # DetermineOSVersion(OS_VERSION)
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| 8 | # message("OS: ${OS_VERSION}")
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| 9 |
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| 10 | # - A little helper variable which should not be directly called
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| 11 | function(DetermineShortWindowsName WIN_VERSION win_num_version)
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| 12 | if (${win_num_version} VERSION_EQUAL "6.1")
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| 13 | set(_version "win7")
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| 14 | elseif(${win_num_version} VERSION_EQUAL "6.0")
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| 15 | set(_version "winVista")
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| 16 | elseif(${win_num_version} VERSION_EQUAL "5.2")
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| 17 | set(_version "winXpProf")
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| 18 | elseif(${win_num_version} VERSION_EQUAL "5.1")
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| 19 | set(_version "winXp")
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| 20 | elseif(${win_num_version} VERSION_EQUAL "5.0")
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| 21 | set(_version "win2000Prof")
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| 22 | else()
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| 23 | set(_version "unknownWin")
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| 24 | endif()
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| 25 | set(${WIN_VERSION} ${_version} PARENT_SCOPE)
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| 26 | endfunction()
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| 27 |
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| 28 | function(DetermineOSVersion OS_VERSION)
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| 29 | if (WIN32 AND CMAKE_HOST_SYSTEM_NAME MATCHES Windows)
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| 30 | file (TO_NATIVE_PATH "$ENV{COMSPEC}" SHELL)
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| 31 | exec_program( ${SHELL} ARGS "/c" "ver" OUTPUT_VARIABLE ver_output)
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| 32 |
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| 33 | string(REGEX MATCHALL "[0-9]+"
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| 34 | ver_list "${ver_output}")
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| 35 | list(GET ver_list 0 _major)
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| 36 | list(GET ver_list 1 _minor)
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| 37 |
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| 38 | set(win_num_version ${_major}.${_minor})
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| 39 | DetermineShortWindowsName(win_version "${win_num_version}")
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| 40 | if(win_version)
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| 41 | set(${OS_VERSION} ${win_version} PARENT_SCOPE)
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| 42 | endif()
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| 43 | else()
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| 44 | set(${OS_VERSION} ${CMAKE_SYSTEM} PARENT_SCOPE)
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| 45 | endif()
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| 46 | endfunction()
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