Add some support for RHEL5 systems.

llvm-svn: 131505
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index d062290..13e42da 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -1380,7 +1380,8 @@
                                "4.5.2", "4.5.1", "4.5",
                                "4.4.5", "4.4.4", "4.4.3", "4.4",
                                "4.3.4", "4.3.3", "4.3.2", "4.3",
-                               "4.2.4", "4.2.3", "4.2.2", "4.2.1", "4.2"};
+                               "4.2.4", "4.2.3", "4.2.2", "4.2.1", "4.2",
+                               "4.1.1"};
   std::string Base = "";
   for (unsigned i = 0; i < sizeof(GccVersions)/sizeof(char*); ++i) {
     std::string Suffix = GccTriple + "/" + GccVersions[i];
diff --git a/clang/lib/Frontend/InitHeaderSearch.cpp b/clang/lib/Frontend/InitHeaderSearch.cpp
index 36a81e8..22c114c 100644
--- a/clang/lib/Frontend/InitHeaderSearch.cpp
+++ b/clang/lib/Frontend/InitHeaderSearch.cpp
@@ -744,6 +744,13 @@
                                 "x86_64-redhat-linux", "", "", triple);
     AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.1.2",
                                 "i386-redhat-linux", "", "", triple);
+      
+    // RHEL 5
+    AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.1.1",
+                                "x86_64-redhat-linux", "32", "", triple);
+    AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.1.1",
+                                "i386-redhat-linux", "", "", triple);
+
 
     //===------------------------------------------------------------------===//