Index: cmake/modules/AddLLVM.cmake
===================================================================
--- cmake/modules/AddLLVM.cmake
+++ cmake/modules/AddLLVM.cmake
@@ -152,7 +152,9 @@
   if( LLVM_USE_LINKER )
     set(command ${CMAKE_C_COMPILER} -fuse-ld=${LLVM_USE_LINKER} -Wl,--version)
   else()
-    set(command ${CMAKE_C_COMPILER} -Wl,--version)
+    string(TOUPPER "${CMAKE_BUILD_TYPE}" build_type)
+    separate_arguments(flags UNIX_COMMAND "${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS_${build_type}}")
+    set(command ${CMAKE_C_COMPILER} ${flags} -Wl,--version)
   endif()
   execute_process(
     COMMAND ${command}