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include(CMakeDetermineVSServicePack)
# The code is almost identical to the CMake version. The only difference is that we remove
# _DetermineVSServicePack_FastCheckVersionWithCompiler which lead to errors on some systems.
function(EigenDetermineVSServicePack _pack)
if(NOT DETERMINED_VS_SERVICE_PACK OR NOT ${_pack})
if(NOT DETERMINED_VS_SERVICE_PACK)
_DetermineVSServicePack_CheckVersionWithTryCompile(DETERMINED_VS_SERVICE_PACK _cl_version)
if(NOT DETERMINED_VS_SERVICE_PACK)
_DetermineVSServicePack_CheckVersionWithTryRun(DETERMINED_VS_SERVICE_PACK _cl_version)
endif()
endif()
if(DETERMINED_VS_SERVICE_PACK)
if(_cl_version)
# Call helper function to determine VS version
_DetermineVSServicePackFromCompiler(_sp "${_cl_version}")
if(_sp)
set(${_pack} ${_sp} CACHE INTERNAL
"The Visual Studio Release with Service Pack")
endif()
endif()
endif()
endif()
endfunction()