gtkmm and its dependencies can be built and installed with the following sequence of commands:
# ./configure # make # make install
On some systems you will need to install to a different location. For instance, on Red Hat Linux systems you might use the --prefix option with configure, like so:
# ./configure --prefix=/usr
The configure script will warn you if you have not installed any of the other packages that it needs.
On Debian GNU/Linux, gtkmm 2.0 is available in unstable/sid. You can install gtkmm by typing this on the command-line:
apt-get install libgtkmm2.0-dev
If you use stable/woody however, you'll have to compile gtkmm2 yourself.