I found libtool offers a way to make a shared library globally
available.  So I wrote a patch that provides `dynamic-link-global'.
A call like `(dynamic-link-global "libgslcblas")' should make things work.

I don't know whether it is portable, though.  Documentation of libtool
mentioned that not all loaders are able to act upon this `advice'.

-- 
Cong Gu