Hi,

> (define %libgirepository (dynamic-link "libgirepository-1.0"))

> In procedure dynamic-link: file: "libgirepository-1.0", message: "file not
> found"

> but both Gobect-introspection and Glib are in the ad-hoc environment
> (they were found by configure)

You can try to run ldd:

        ldd <the-full-path-name-of-the-lib>

        [ and se what is missing... look for not found

If that is not enough, you can try to strace:

        strace -o strace.out guile -c "(dynamic-link "libgirepository-1.0"))"

HTH,
David