corentin

It is working if I set [the environment variable `LIBXML2`](https://github.com/KWARC/rust-libxml/blob/2c669a9ba51600664317463de6af0f5db37f4b92/build.rs#L2). For example : ```zsh ➜ bombardier git:(develop) LIBXML2=/usr/lib/x86_64-linux-gnu/libxml2.so.2 cargo build ``` but now `cc` is missing for linking