I currently get this message from the install/update script:
Cloning libspatialindex

Enter passphrase for key '/home/cjc1/.ssh/id_rsa':
Successfully cloned libspatialindex branch master.
HEAD is now at 34fd22b Merge pull request #82 from miklos1/master

  glibtoolize or libtoolize not found. Giving up!

Traceback (most recent call last):
  File "firedrake-install", line 903, in <module>
    build_and_install_libspatialindex()
  File "firedrake-install", line 617, in build_and_install_libspatialindex
    check_call(["./autogen.sh"])
  File "firedrake-install", line 211, in check_call
    subprocess.check_call(arguments, env=env)
  File "/usr/lib/python2.7/subprocess.py", line 540, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['./autogen.sh']' returned non-zero exit status 1

What can I do to fix this?