Index: lib/Frontend/InitHeaderSearch.cpp
===================================================================
--- lib/Frontend/InitHeaderSearch.cpp	(revision 160944)
+++ lib/Frontend/InitHeaderSearch.cpp	(working copy)
@@ -1,4 +1,4 @@
-//===--- InitHeaderSearch.cpp - Initialize header search paths ------------===//
+//===--- InitHeaderSearch.cpp - Initialize header search paths ------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -469,6 +469,10 @@
           P.appendComponent("c++");
           P.appendComponent("v1");
           AddPath(P.str(), CXXSystem, true, false, false, true);
+          
+          // In case this clang isn't installed on system, use default libc++
+          AddPath("/usr/lib/c++/v1", CXXSystem, true, false, false, true);
+          
         }
       }
       // On Solaris, include the support directory for things like xlocale and