47 lines
1.5 KiB
CMake
47 lines
1.5 KiB
CMake
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# The utility function DetermineOSVersion aims at providing an
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# improved version of the CMake variable ${CMAKE_SYSTEM} on Windows
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# machines.
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#
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# Usage:
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# include(EigenDetermineOSVersion)
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# DetermineOSVersion(OS_VERSION)
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# message("OS: ${OS_VERSION}")
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# - A little helper variable which should not be directly called
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function(DetermineShortWindowsName WIN_VERSION win_num_version)
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if (${win_num_version} VERSION_EQUAL "6.1")
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set(_version "win7")
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elseif(${win_num_version} VERSION_EQUAL "6.0")
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set(_version "winVista")
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elseif(${win_num_version} VERSION_EQUAL "5.2")
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set(_version "winXpProf")
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elseif(${win_num_version} VERSION_EQUAL "5.1")
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set(_version "winXp")
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elseif(${win_num_version} VERSION_EQUAL "5.0")
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set(_version "win2000Prof")
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else()
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set(_version "unknownWin")
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endif()
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set(${WIN_VERSION} ${_version} PARENT_SCOPE)
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endfunction()
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function(DetermineOSVersion OS_VERSION)
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if (WIN32 AND CMAKE_HOST_SYSTEM_NAME MATCHES Windows)
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file (TO_NATIVE_PATH "$ENV{COMSPEC}" SHELL)
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exec_program( ${SHELL} ARGS "/c" "ver" OUTPUT_VARIABLE ver_output)
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string(REGEX MATCHALL "[0-9]+"
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ver_list "${ver_output}")
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list(GET ver_list 0 _major)
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list(GET ver_list 1 _minor)
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set(win_num_version ${_major}.${_minor})
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DetermineShortWindowsName(win_version "${win_num_version}")
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if(win_version)
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set(${OS_VERSION} ${win_version} PARENT_SCOPE)
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endif()
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else()
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set(${OS_VERSION} ${CMAKE_SYSTEM} PARENT_SCOPE)
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endif()
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endfunction()
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