Index: cfe/trunk/lib/Lex/HeaderSearch.cpp
===================================================================
--- cfe/trunk/lib/Lex/HeaderSearch.cpp
+++ cfe/trunk/lib/Lex/HeaderSearch.cpp
@@ -30,6 +30,7 @@
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/Capacity.h"
+#include "llvm/Support/Errc.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Path.h"
@@ -315,9 +316,9 @@
     // For rare, surprising errors (e.g. "out of file handles"), diag the EC
     // message.
     std::error_code EC = File.getError();
-    if (EC != std::errc::no_such_file_or_directory &&
-        EC != std::errc::invalid_argument && EC != std::errc::is_a_directory &&
-        EC != std::errc::not_a_directory) {
+    if (EC != llvm::errc::no_such_file_or_directory &&
+        EC != llvm::errc::invalid_argument &&
+        EC != llvm::errc::is_a_directory && EC != llvm::errc::not_a_directory) {
       Diags.Report(IncludeLoc, diag::err_cannot_open_file)
           << FileName << EC.message();
     }