Building Marlin from Tarballs
To build Marlin from tarballs you must first run the configure script, to set up the build.
Run it with --help to see the various other options it can take. Common ones will be --prefix and --sysconfdir which should be set to the installation prefix and sysconfdir of your GNOME2 installation.
./configure --prefix=/usr --sysconfdir=/etc
Assuming there is no problem running the configure file, it will set up the build environment and you can then build Marlin
After make has finished building Marlin, use make install to install Marlin. You may need to be root to do this.