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I am trying to compile a C++ program using clang which I installed using a packaged version here https://launchpad.net/~eudoxos/+archive/llvm-3.1 . This is the command: clang++ -std=c++11 -stdlib=libc++ -g -v -c main.cpp And I get this as the result: ignoring nonexistent directory "/usr/include/c++/v1" ignoring nonexistent directory "/usr/bin/../lib/clang/3.1/include" ignoring nonexistent directory "" ignoring duplicate directory "/usr/include/x86_64-linux-gnu" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/include/clang/3.1/include /usr/include/x86_64-linux-gnu /usr/include main.cpp:1:10: fatal error: 'iostream' file not found #include <iostream> As you can see, it is not searching in the correct include directory, /usr/include/c++/4.6. But I think the issue is deeper than that. Even when I force it to search in that directory, I get this: In file included from main.cpp:1: /usr/include/c++/4.6/iostream:38:10: fatal error: 'bits/c++config.h' file not found #include <bits/c++config.h> And that file doesn't exist in that area. I am thinking maybe libc++ is missing, but before I make a huge mess trying to compile libc++ from source (which I doubt will work) since I cannot find any dedicated libc++ ubuntu package, I was hoping you guys could help out. Thanks very much!

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