if(NOT MSVC)
  message(FATAL_ERROR "CRT options are available only for MSVC")
endif()

if(NOT BUILD_SHARED_LIBS AND BUILD_WITH_STATIC_CRT)
  foreach(flag_var
          CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
          CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
          CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
          CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
    if(${flag_var} MATCHES "/MD")
      string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
    endif()
    if(${flag_var} MATCHES "/MDd")
      string(REGEX REPLACE "/MDd" "/MTd" ${flag_var} "${${flag_var}}")
    endif()
  endforeach(flag_var)

  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /NODEFAULTLIB:atlthunk.lib /NODEFAULTLIB:msvcrt.lib /NODEFAULTLIB:msvcrtd.lib")
  set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} /NODEFAULTLIB:libcmt.lib")
  set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /NODEFAULTLIB:libcmtd.lib")
else()
  foreach(flag_var
          CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
          CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
          CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
          CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
    if(${flag_var} MATCHES "/MT")
      string(REGEX REPLACE "/MT" "/MD" ${flag_var} "${${flag_var}}")
    endif()
    if(${flag_var} MATCHES "/MTd")
      string(REGEX REPLACE "/MTd" "/MDd" ${flag_var} "${${flag_var}}")
    endif()
  endforeach(flag_var)
endif()

if(NOT ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} LESS 2.8 AND NOT ${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION} LESS 8.6)
  include(ProcessorCount)
  ProcessorCount(N)
  if(NOT N EQUAL 0)
    SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   /MP${N} ")
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP${N} ")
  endif()
endif()

if(NOT BUILD_WITH_DEBUG_INFO)
  string(REPLACE "/debug" "" CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/DEBUG" "" CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/INCREMENTAL:YES" "/INCREMENTAL:NO" CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/INCREMENTAL " "/INCREMENTAL:NO " CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")

  string(REPLACE "/debug" "" CMAKE_MODULE_LINKER_FLAGS_DEBUG "${CMAKE_MODULE_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/DEBUG" "" CMAKE_MODULE_LINKER_FLAGS_DEBUG "${CMAKE_MODULE_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/INCREMENTAL:YES" "/INCREMENTAL:NO" CMAKE_MODULE_LINKER_FLAGS_DEBUG "${CMAKE_MODULE_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/INCREMENTAL " "/INCREMENTAL:NO " CMAKE_MODULE_LINKER_FLAGS_DEBUG "${CMAKE_MODULE_LINKER_FLAGS_DEBUG}")

  string(REPLACE "/debug" "" CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/DEBUG" "" CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/INCREMENTAL:YES" "/INCREMENTAL:NO" CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG}")
  string(REPLACE "/INCREMENTAL " "/INCREMENTAL:NO " CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG}")

  string(REPLACE "/Zi" "" CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}")
  string(REPLACE "/Zi" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}")
endif()