CMake - clang linker on Windows does not understand /release flag

cmake/os/Windows.cmake

@@ -161,7 +161,10 @@ IF(MSVC)
    STRING(REGEX REPLACE "/STACK:([^ ]+)" "" CMAKE_${type}_LINKER_FLAGS "${CMAKE_${type}_LINKER_FLAGS}")
    STRING(REGEX REPLACE "/INCREMENTAL:([^ ]+)" "/INCREMENTAL:NO" CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO}")
    STRING(REGEX REPLACE "/INCREMENTAL$" "/INCREMENTAL:NO" CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO}")
-   SET(CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO} /OPT:REF /release")
+   SET(CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO} /OPT:REF")
+   IF(NOT CLANG_CL)
+     SET(CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_${type}_LINKER_FLAGS_RELWITHDEBINFO} /release")
+   ENDIF()
    IF(DYNAMIC_UCRT_LINK AND (MSVC_CRT_TYPE STREQUAL "/MT"))
      FOREACH(config RELEASE RELWITHDEBINFO DEBUG MINSIZEREL)
        STRING(APPEND CMAKE_${type}_LINKER_FLAGS_${config} ${DYNAMIC_UCRT_LINKER_OPTION})