the dependencies of pygoocanvas aren' t right after building smoothly

When building pygoocanvas, there's no errors and the building is finished smoothly.
However, " ldd /usr/lib/python2.4/site-packages/goocanvasmodule.so", there's only two dependencies:
libc.so.1 => /lib/libc.so.1
libm.so.2 => /lib/libm.so.2

and the important dependencies such as libgoocanvas, libpangocairo-1.0.so.0 don't exist.

I meet this problem on Solaris.