macro(configure_msvc_runtime)

	if(MSVC)

		# Default to statically-linked runtime.

		if("${MSVC_RUNTIME}" STREQUAL "")

			set(MSVC_RUNTIME "dynamic")

		endif()

		# Set compiler options.

		set(variables

			CMAKE_C_FLAGS

			CMAKE_C_FLAGS_DEBUG

			CMAKE_C_FLAGS_MINSIZEREL

			CMAKE_C_FLAGS_RELEASE

			CMAKE_C_FLAGS_RELWITHDEBINFO

			CMAKE_CXX_FLAGS

			CMAKE_CXX_FLAGS_DEBUG

			CMAKE_CXX_FLAGS_MINSIZEREL

			CMAKE_CXX_FLAGS_RELEASE

			CMAKE_CXX_FLAGS_RELWITHDEBINFO)

		if(${MSVC_RUNTIME} STREQUAL "static")

			message(STATUS "MSVC: using statically-linked runtime (/MT and /MTd).")

			foreach(variable ${variables})

				if(${variable} MATCHES "/MD")

					string(REGEX REPLACE "/MD" "/MT" ${variable} "${${variable}}")

				endif()

			endforeach()

		else()

			message(STATUS "MSVC: using dynamically-linked runtime (/MD and /MDd).")

			foreach(variable ${variables})

				if(${variable} MATCHES "/MT")

					string(REGEX REPLACE "/MT" "/MD" ${variable} "${${variable}}")

				endif()

			endforeach()

		endif()

		foreach(variable ${variables})

			if(${variable} MATCHES "/Ob0")

				string(REGEX REPLACE "/Ob0" "/Ob2" ${variable} "${${variable}}")

			endif()

		endforeach()

		foreach(variable ${variables})

			if(${variable} MATCHES "/W3")

				string(REGEX REPLACE "/W3" "/W2" ${variable} "${${variable}}")

			endif()

		endforeach()

		set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS}")

		set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}")

		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}")

		set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL}")

		set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO}")

		foreach(variable ${variables})

			set(${variable} "${${variable}}" CACHE STRING "MSVC_${variable}" FORCE)

		endforeach()

	endif()

endmacro(configure_msvc_runtime)