Index: libcxx-3.5.0.src/lib/CMakeLists.txt
===================================================================
--- libcxx-3.5.0.src.orig/lib/CMakeLists.txt
+++ libcxx-3.5.0.src/lib/CMakeLists.txt
@@ -96,6 +96,6 @@ set_target_properties(cxx
   )
 
 install(TARGETS cxx
-  LIBRARY DESTINATION lib
-  ARCHIVE DESTINATION lib
+  LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
+  ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
   )