Slicer duplicate rule remover
Make compile wil C++03 and fix style
Merge pull request #24 from jeroenk/dup

Duplicate rule remover
Revert "This should be contained in "llvm-config --cxxflags" if needed."

This reverts commit 5e56bedd266e41f5b9afd918aefbf14e0cccb36e.