Lucas, Probably the reason of FTBFS is because you have newer version of autoconf and libtool packages on your Sid box. I had very similar problem under Ubuntu Jaunty.
Did you try to run `autoreconf -f` before? -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org