I think the correct related Debian bug is http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=705957
I did a 'sudo aptitude purge libclang-common-dev', accepted the first dependency resolution option (remove clang and clang-3.2), and then did 'sudo aptitude install clang'; now clang works again. I'm not familiar with apt/dpkg details; perhaps 'sudo aptitude reinstall libclang-common- dev' would work too. I'm on Xubuntu 13.10, which I upgraded from 13.04 -- I think this matches the description of the above bug (directory not replaced by symlink on upgrade). ** Bug watch added: Debian Bug tracker #705957 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=705957 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1242300 Title: Clang cannot locate standard header files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/llvm-defaults/+bug/1242300/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs