diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index 00a1491..f378fc2 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -54,8 +54,7 @@
 
   /// AddPath - Add the specified path to the specified group list.
   void AddPath(const Twine &Path, IncludeDirGroup Group,
-               bool isCXXAware, bool isUserSupplied,
-               bool isFramework, bool IgnoreSysRoot = false);
+               bool isCXXAware, bool isFramework, bool IgnoreSysRoot = false);
 
   /// AddSystemHeaderPrefix - Add the specified prefix to the system header
   /// prefix list.
@@ -106,8 +105,7 @@
 
 void InitHeaderSearch::AddPath(const Twine &Path,
                                IncludeDirGroup Group, bool isCXXAware,
-                               bool isUserSupplied, bool isFramework,
-                               bool IgnoreSysRoot) {
+                               bool isFramework, bool IgnoreSysRoot) {
   assert(!Path.isTriviallyEmpty() && "can't handle empty path here");
   FileManager &FM = Headers.getFileMgr();
 
@@ -171,42 +169,42 @@
                                                    StringRef Dir64,
                                                    const llvm::Triple &triple) {
   // Add the base dir
-  AddPath(Base, CXXSystem, true, false, false);
+  AddPath(Base, CXXSystem, true, false);
 
   // Add the multilib dirs
   llvm::Triple::ArchType arch = triple.getArch();
   bool is64bit = arch == llvm::Triple::ppc64 || arch == llvm::Triple::x86_64;
   if (is64bit)
-    AddPath(Base + "/" + ArchDir + "/" + Dir64, CXXSystem, true, false, false);
+    AddPath(Base + "/" + ArchDir + "/" + Dir64, CXXSystem, true, false);
   else
-    AddPath(Base + "/" + ArchDir + "/" + Dir32, CXXSystem, true, false, false);
+    AddPath(Base + "/" + ArchDir + "/" + Dir32, CXXSystem, true, false);
 
   // Add the backward dir
-  AddPath(Base + "/backward", CXXSystem, true, false, false);
+  AddPath(Base + "/backward", CXXSystem, true, false);
 }
 
 void InitHeaderSearch::AddMinGWCPlusPlusIncludePaths(StringRef Base,
                                                      StringRef Arch,
                                                      StringRef Version) {
   AddPath(Base + "/" + Arch + "/" + Version + "/include/c++",
-          CXXSystem, true, false, false);
+          CXXSystem, true, false);
   AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/" + Arch,
-          CXXSystem, true, false, false);
+          CXXSystem, true, false);
   AddPath(Base + "/" + Arch + "/" + Version + "/include/c++/backward",
-          CXXSystem, true, false, false);
+          CXXSystem, true, false);
 }
 
 void InitHeaderSearch::AddMinGW64CXXPaths(StringRef Base,
                                           StringRef Version) {
   // Assumes Base is HeaderSearchOpts' ResourceDir
   AddPath(Base + "/../../../include/c++/" + Version,
-          CXXSystem, true, false, false);
+          CXXSystem, true, false);
   AddPath(Base + "/../../../include/c++/" + Version + "/x86_64-w64-mingw32",
-          CXXSystem, true, false, false);
+          CXXSystem, true, false);
   AddPath(Base + "/../../../include/c++/" + Version + "/i686-w64-mingw32",
-          CXXSystem, true, false, false);
+          CXXSystem, true, false);
   AddPath(Base + "/../../../include/c++/" + Version + "/backward",
-          CXXSystem, true, false, false);
+          CXXSystem, true, false);
 }
 
 void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple,
@@ -222,7 +220,7 @@
       break;
     default:
       // FIXME: temporary hack: hard-coded paths.
-      AddPath("/usr/local/include", System, true, false, false);
+      AddPath("/usr/local/include", System, true, false);
       break;
     }
   }
@@ -234,7 +232,7 @@
     // supplied path.
     llvm::sys::Path P(HSOpts.ResourceDir);
     P.appendComponent("include");
-    AddPath(P.str(), System, false, false, false, /*IgnoreSysRoot=*/ true);
+    AddPath(P.str(), System, false, false, /*IgnoreSysRoot=*/ true);
   }
 
   // All remaining additions are for system include directories, early exit if
@@ -250,7 +248,7 @@
     for (SmallVectorImpl<StringRef>::iterator i = dirs.begin();
          i != dirs.end();
          ++i)
-      AddPath(*i, System, false, false, false);
+      AddPath(*i, System, false, false);
     return;
   }
 
@@ -260,68 +258,62 @@
     llvm_unreachable("Include management is handled in the driver.");
 
   case llvm::Triple::Haiku:
-    AddPath("/boot/common/include", System, true, false, false);
-    AddPath("/boot/develop/headers/os", System, true, false, false);
-    AddPath("/boot/develop/headers/os/app", System, true, false, false);
-    AddPath("/boot/develop/headers/os/arch", System, true, false, false);
-    AddPath("/boot/develop/headers/os/device", System, true, false, false);
-    AddPath("/boot/develop/headers/os/drivers", System, true, false, false);
-    AddPath("/boot/develop/headers/os/game", System, true, false, false);
-    AddPath("/boot/develop/headers/os/interface", System, true, false, false);
-    AddPath("/boot/develop/headers/os/kernel", System, true, false, false);
-    AddPath("/boot/develop/headers/os/locale", System, true, false, false);
-    AddPath("/boot/develop/headers/os/mail", System, true, false, false);
-    AddPath("/boot/develop/headers/os/media", System, true, false, false);
-    AddPath("/boot/develop/headers/os/midi", System, true, false, false);
-    AddPath("/boot/develop/headers/os/midi2", System, true, false, false);
-    AddPath("/boot/develop/headers/os/net", System, true, false, false);
-    AddPath("/boot/develop/headers/os/storage", System, true, false, false);
-    AddPath("/boot/develop/headers/os/support", System, true, false, false);
-    AddPath("/boot/develop/headers/os/translation",
-      System, true, false, false);
-    AddPath("/boot/develop/headers/os/add-ons/graphics",
-      System, true, false, false);
+    AddPath("/boot/common/include", System, true, false);
+    AddPath("/boot/develop/headers/os", System, true, false);
+    AddPath("/boot/develop/headers/os/app", System, true, false);
+    AddPath("/boot/develop/headers/os/arch", System, true, false);
+    AddPath("/boot/develop/headers/os/device", System, true, false);
+    AddPath("/boot/develop/headers/os/drivers", System, true, false);
+    AddPath("/boot/develop/headers/os/game", System, true, false);
+    AddPath("/boot/develop/headers/os/interface", System, true, false);
+    AddPath("/boot/develop/headers/os/kernel", System, true, false);
+    AddPath("/boot/develop/headers/os/locale", System, true, false);
+    AddPath("/boot/develop/headers/os/mail", System, true, false);
+    AddPath("/boot/develop/headers/os/media", System, true, false);
+    AddPath("/boot/develop/headers/os/midi", System, true, false);
+    AddPath("/boot/develop/headers/os/midi2", System, true, false);
+    AddPath("/boot/develop/headers/os/net", System, true, false);
+    AddPath("/boot/develop/headers/os/storage", System, true, false);
+    AddPath("/boot/develop/headers/os/support", System, true, false);
+    AddPath("/boot/develop/headers/os/translation", System, true, false);
+    AddPath("/boot/develop/headers/os/add-ons/graphics", System, true, false);
     AddPath("/boot/develop/headers/os/add-ons/input_server",
-      System, true, false, false);
+            System, true, false);
     AddPath("/boot/develop/headers/os/add-ons/screen_saver",
-      System, true, false, false);
-    AddPath("/boot/develop/headers/os/add-ons/tracker",
-      System, true, false, false);
-    AddPath("/boot/develop/headers/os/be_apps/Deskbar",
-      System, true, false, false);
+            System, true, false);
+    AddPath("/boot/develop/headers/os/add-ons/tracker", System, true, false);
+    AddPath("/boot/develop/headers/os/be_apps/Deskbar", System, true, false);
     AddPath("/boot/develop/headers/os/be_apps/NetPositive",
-      System, true, false, false);
-    AddPath("/boot/develop/headers/os/be_apps/Tracker",
-      System, true, false, false);
-    AddPath("/boot/develop/headers/cpp", System, true, false, false);
-    AddPath("/boot/develop/headers/cpp/i586-pc-haiku",
-      System, true, false, false);
-    AddPath("/boot/develop/headers/3rdparty", System, true, false, false);
-    AddPath("/boot/develop/headers/bsd", System, true, false, false);
-    AddPath("/boot/develop/headers/glibc", System, true, false, false);
-    AddPath("/boot/develop/headers/posix", System, true, false, false);
-    AddPath("/boot/develop/headers",  System, true, false, false);
+            System, true, false);
+    AddPath("/boot/develop/headers/os/be_apps/Tracker", System, true, false);
+    AddPath("/boot/develop/headers/cpp", System, true, false);
+    AddPath("/boot/develop/headers/cpp/i586-pc-haiku", System, true, false);
+    AddPath("/boot/develop/headers/3rdparty", System, true, false);
+    AddPath("/boot/develop/headers/bsd", System, true, false);
+    AddPath("/boot/develop/headers/glibc", System, true, false);
+    AddPath("/boot/develop/headers/posix", System, true, false);
+    AddPath("/boot/develop/headers",  System, true, false);
     break;
   case llvm::Triple::RTEMS:
     break;
   case llvm::Triple::Cygwin:
-    AddPath("/usr/include/w32api", System, true, false, false);
+    AddPath("/usr/include/w32api", System, true, false);
     break;
   case llvm::Triple::MinGW32: { 
       // mingw-w64 crt include paths
       llvm::sys::Path P(HSOpts.ResourceDir);
       P.appendComponent("../../../i686-w64-mingw32/include"); // <sysroot>/i686-w64-mingw32/include
-      AddPath(P.str(), System, true, false, false);
+      AddPath(P.str(), System, true, false);
       P = llvm::sys::Path(HSOpts.ResourceDir);
       P.appendComponent("../../../x86_64-w64-mingw32/include"); // <sysroot>/x86_64-w64-mingw32/include
-      AddPath(P.str(), System, true, false, false);
+      AddPath(P.str(), System, true, false);
       // mingw.org crt include paths
       P = llvm::sys::Path(HSOpts.ResourceDir);
       P.appendComponent("../../../include"); // <sysroot>/include
-      AddPath(P.str(), System, true, false, false);
-      AddPath("/mingw/include", System, true, false, false);
+      AddPath(P.str(), System, true, false);
+      AddPath("/mingw/include", System, true, false);
 #if defined(_WIN32)
-      AddPath("c:/mingw/include", System, true, false, false); 
+      AddPath("c:/mingw/include", System, true, false); 
 #endif
     }
     break;
@@ -331,7 +323,7 @@
   }
 
   if ( os != llvm::Triple::RTEMS )
-    AddPath("/usr/include", System, false, false, false);
+    AddPath("/usr/include", System, false, false);
 }
 
 void InitHeaderSearch::
@@ -408,7 +400,7 @@
 #endif
     break;
   case llvm::Triple::DragonFly:
-    AddPath("/usr/include/c++/4.1", CXXSystem, true, false, false);
+    AddPath("/usr/include/c++/4.1", CXXSystem, true, false);
     break;
   case llvm::Triple::FreeBSD:
     // FreeBSD 8.0
@@ -474,16 +466,15 @@
           // Get foo/lib/c++/v1
           P.appendComponent("c++");
           P.appendComponent("v1");
-          AddPath(P.str(), CXXSystem, true, false, false, true);
+          AddPath(P.str(), CXXSystem, true, false, true);
         }
       }
       // On Solaris, include the support directory for things like xlocale and
       // fudged system headers.
       if (triple.getOS() == llvm::Triple::Solaris) 
-        AddPath("/usr/include/c++/v1/support/solaris", CXXSystem, true, false,
-            false);
+        AddPath("/usr/include/c++/v1/support/solaris", CXXSystem, true, false);
       
-      AddPath("/usr/include/c++/v1", CXXSystem, true, false, false);
+      AddPath("/usr/include/c++/v1", CXXSystem, true, false);
     } else {
       AddDefaultCPlusPlusIncludePaths(triple, HSOpts);
     }
@@ -494,8 +485,8 @@
   // Add the default framework include paths on Darwin.
   if (HSOpts.UseStandardSystemIncludes) {
     if (triple.isOSDarwin()) {
-      AddPath("/System/Library/Frameworks", System, true, false, true);
-      AddPath("/Library/Frameworks", System, true, false, true);
+      AddPath("/System/Library/Frameworks", System, true, true);
+      AddPath("/Library/Frameworks", System, true, true);
     }
   }
 }
@@ -669,8 +660,8 @@
   // Add the user defined entries.
   for (unsigned i = 0, e = HSOpts.UserEntries.size(); i != e; ++i) {
     const HeaderSearchOptions::Entry &E = HSOpts.UserEntries[i];
-    Init.AddPath(E.Path, E.Group, !E.ImplicitExternC, E.IsUserSupplied,
-                 E.IsFramework, E.IgnoreSysRoot);
+    Init.AddPath(E.Path, E.Group, !E.ImplicitExternC, E.IsFramework,
+                 E.IgnoreSysRoot);
   }
 
   Init.AddDefaultIncludePaths(Lang, Triple, HSOpts);