diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index bb41a58df2d..ff71c00544f 100644
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -5,6 +5,7 @@
 include(AddLLVMDefinitions)
 include(CheckCCompilerFlag)
 include(CheckCXXCompilerFlag)
+include(LLVMProcessSources)
 
 if( CMAKE_COMPILER_IS_GNUCXX )
   set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
@@ -40,6 +41,15 @@ else()
   endif()
 endif()
 
+if(MSVC)
+  # Link release builds against the static runtime.
+  foreach(flag CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_RELWITHDEBINFO
+      CMAKE_C_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELEASE
+      CMAKE_CXX_FLAGS_RELWITHDEBINFO CMAKE_CXX_FLAGS_MINSIZEREL)
+    llvm_replace_compiler_option("${flag}" "/MD" "/MT")
+  endforeach()
+endif()  
+
 if(WIN32)
   if(CYGWIN)
     set(LLVM_ON_WIN32 0)