Use libtool intermediate library instead of static archive

Origina patch from gnome-system-toools by Gilles Dartiguelongue <gilles.dartiguelongue@esiee.org>
Add missing dependency for e-map intermediate library

Origina patch for gnome-system-tools by Gilles Dartiguelongue gilles.dartiguelongue@esiee.org
Merge pull request #15 from infirit/master

Apply patches from gentoo's gnome-system-tools