jhbuild compilation fails if libtools 2.4 is installed

[Jordi Chulia <jorchube gmail com>]

Hello everybody:

I'm not sure if this is a gnome-shell problem, or is a problem of the
maintainers of each module built with jhbuild.

The problem is that some modules asks for libtools 2.2, when I have 2.4
installed and this should be ok.

(editing each autogen.sh of the failing modules to ask for libtool 2.4
is a workaround and seems to build fine, but having to do this may
discourage some people to build and test gnome-shell)

thank you for your time.