diff --git a/cmake/modules/AddClang.cmake b/cmake/modules/AddClang.cmake
index 75b0080f6..c895b884c 100644
--- a/cmake/modules/AddClang.cmake
+++ b/cmake/modules/AddClang.cmake
@@ -119,8 +119,8 @@ macro(add_clang_library name)
         install(TARGETS ${lib}
           COMPONENT ${lib}
           ${export_to_clangtargets}
-          LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-          ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
+          LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}"
+          ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}"
           RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
 
         if (NOT LLVM_ENABLE_IDE)
diff --git a/lib/Headers/CMakeLists.txt b/lib/Headers/CMakeLists.txt
index e6ae4e19e..5ef01aea2 100644
--- a/lib/Headers/CMakeLists.txt
+++ b/lib/Headers/CMakeLists.txt
@@ -337,6 +337,7 @@ set(llvm_libc_wrapper_files
 
 include(GetClangResourceDir)
 get_clang_resource_dir(output_dir PREFIX ${LLVM_LIBRARY_OUTPUT_INTDIR}/.. SUBDIR include)
+set(header_install_dir ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION_MAJOR}/include)
 set(out_files)
 set(generated_files)
 
diff --git a/tools/libclang/CMakeLists.txt b/tools/libclang/CMakeLists.txt
index b5b6d2807..6b592d255 100644
--- a/tools/libclang/CMakeLists.txt
+++ b/tools/libclang/CMakeLists.txt
@@ -246,7 +246,7 @@ foreach(PythonVersion ${CLANG_PYTHON_BINDINGS_VERSIONS})
           COMPONENT
             libclang-python-bindings
           DESTINATION
-            "lib${LLVM_LIBDIR_SUFFIX}/python${PythonVersion}/site-packages")
+            "${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/python${PythonVersion}/site-packages")
 endforeach()
 if(NOT LLVM_ENABLE_IDE)
   add_custom_target(libclang-python-bindings)
diff --git a/tools/scan-build-py/CMakeLists.txt b/tools/scan-build-py/CMakeLists.txt
index 3aca22c0b..3115353e3 100644
--- a/tools/scan-build-py/CMakeLists.txt
+++ b/tools/scan-build-py/CMakeLists.txt
@@ -88,7 +88,7 @@ foreach(lib ${LibScanbuild})
                      DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/lib/libscanbuild/${lib})
   list(APPEND Depends ${CMAKE_BINARY_DIR}/lib/libscanbuild/${lib})
   install(FILES lib/libscanbuild/${lib}
-          DESTINATION lib${CLANG_LIBDIR_SUFFIX}/libscanbuild
+          DESTINATION "${CMAKE_INSTALL_LIBDIR}/libscanbuild"
           COMPONENT scan-build-py)
 endforeach()
 
@@ -106,7 +106,7 @@ foreach(resource ${LibScanbuildResources})
                      DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/lib/libscanbuild/resources/${resource})
   list(APPEND Depends ${CMAKE_BINARY_DIR}/lib/libscanbuild/resources/${resource})
   install(FILES lib/libscanbuild/resources/${resource}
-          DESTINATION lib${CLANG_LIBDIR_SUFFIX}/libscanbuild/resources
+          DESTINATION "${CMAKE_INSTALL_LIBDIR}/libscanbuild/resources"
           COMPONENT scan-build-py)
 endforeach()
 
@@ -122,7 +122,7 @@ foreach(lib ${LibEar})
                      DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/lib/libear/${lib})
   list(APPEND Depends ${CMAKE_BINARY_DIR}/lib/libear/${lib})
   install(FILES lib/libear/${lib}
-          DESTINATION lib${CLANG_LIBDIR_SUFFIX}/libear
+          DESTINATION "${CMAKE_INSTALL_LIBDIR}/libear"
           COMPONENT scan-build-py)
 endforeach()