GtkGLArea libraries

["Ignacio Nodal" <inodal teleline es>]

I've recently installed gtkglarea-1.2.2 in my linux system, so I'm quite a
newbie. When I try to run one of the examples from a different directory
then the one where I made the installation, I get the following error:

gcc: ../gtkgl/.libs/libgtkgl.so: file not found

How can I make this libraries accessibles for any users from any directory?

Thanks