Add C++ include paths for libstdc++ with Ubuntu 11.04 and Debian's libstdc++6-4.5, as collected from http://packages.ubuntu.com/search?mode=exactfilename&suite=natty&section=all&arch=any&searchon=contents&keywords=c%2B%2Blocale.h and http://packages.debian.org/wheezy/armel/libstdc++6-4.5-dev/filelist
Fixes compilation with clang++ on Ubuntu 11.04.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130837 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index c552512..36a81e8 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -651,6 +651,16 @@
     // Debian based distros.
     // Note: these distros symlink /usr/include/c++/X.Y.Z -> X.Y
     //===------------------------------------------------------------------===//
+    // Ubuntu 11.04 "Natty Narwhal" -- gcc-4.5.2
+    AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.5",
+                                "x86_64-linux-gnu", "32", "", triple);
+    AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.5",
+                                "i686-linux-gnu", "", "64", triple);
+    AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.5",
+                                "i486-linux-gnu", "", "64", triple);
+    AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.5",
+                                "arm-linux-gnueabi", "", "", triple);
+
     // Ubuntu 10.10 "Maverick Meerkat" -- gcc-4.4.5
     AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.4",
                                 "i686-linux-gnu", "", "64", triple);