@item @uref{http://common-lisp.net/project/iterate/,,Iterate} (version >= 1.4.3)
@item @uref{http://common-lisp.net/project/bordeaux-threads/,,Bordeaux-Threads} (version >= 0.6.0)
@item @uref{http://common-lisp.net/project/closer/closer-mop.html,,Closer-MOP} (version >= 0.55)
+@item @uref{http://common-lisp.net/project/cl-opengl/,,cl-opengl} (if you intend to use <code>cl-gtk2-cairo</code>)
+@item @uref{http://common-lisp.net/project/cl-cairo2/,,cl-cairo2} (if you intend to use <code>cl-gtk2-gtkglext</code>)
@end itemize
At first, source code should be downloded. Current version of CL-GTK2 can be downloaded from @uref{http://common-lisp.net/project/cl-gtk2/files/cl-gtk2-0.1.tar.gz}.
To do this, either add @code{glib}, @code{gdk} and @code{gtk} directories to @code{asdf:*central-registry*}:
@lisp
(push "/path/to/cl-gtk2/glib" asdf:*central-registry*)
+(push "/path/to/cl-gtk2/pango/" asdf:*central-registry*)
(push "/path/to/cl-gtk2/gdk" asdf:*central-registry*)
(push "/path/to/cl-gtk2/gtk" asdf:*central-registry*)
+(push "/path/to/cl-gtk2/gtk-glext/" asdf:*central-registry*)
+(push "/path/to/cl-gtk2/cairo/" asdf:*central-registry*)
@end lisp
or create symlinks to @code{cl-gtk2-glib.asd}, @code{cl-gtk2-gdk.asd} and @code{cl-gtk2-gtk.asd} files in a directory where @code{ASDF} systems are located (it might be @code{/usr/share/common-lisp/systems/} for system-wide installation in Gentoo Linux and Debian Linux, @code{~/.sbcl/systems/} for user installation for SBCL compiler):
@example
cd ~/.sbcl/systems # depends on your system
ln -s /path/to/cl-gtk2/glib/cl-gtk2-glib.asd .
+ln -s /path/to/cl-gtk2/pango/cl-gtk2-pango.asd .
ln -s /path/to/cl-gtk2/gdk/cl-gtk2-gdk.asd .
ln -s /path/to/cl-gtk2/gtk/cl-gtk2-gtk.asd .
+ln -s /path/to/cl-gtk2/gtkglext/cl-gtk2-gtkglext.asd .
+ln -s /path/to/cl-gtk2/cairo/cl-gtk2-cairo.asd .
@end example
In Gentoo Linux, it is possible to use layman (see @uref{http://www.gentoo.org/proj/en/overlays/userguide.xml,,Gentoo Overlays Users' Guide}) to add @code{lisp} and @code{cl-gtk2} overlays that contains neccessary ebuilds: