http://llvm.org/bugs/show_bug.cgi?id=9349 I have not personally tested this patch. Please let me know if it causes problems.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@126846 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CMakeLists.txt

@@ -52,5 +52,5 @@ install(TARGETS cxx
 install(DIRECTORY ../include/
   DESTINATION include/c++/v1
   FILES_MATCHING
-  PATTERN "*"
+  PATTERN ".svn" EXCLUDE
   )