I had the same type of error on Debian Squeeze with "jhbuild bootstrap" and the extract of "automake".
I solved issue by removing the installed version "sudo apt-get remove jhbuild" and by installing the latest git version of "jhbuild" : git clone git://git.gnome.org/jhbuild cd jhbuild ./autogen.sh make make install After that "jhbuild boostrap" runs fine ! Hope this helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/957736 Title: jhbuild can't extract xz files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jhbuild/+bug/957736/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs