At least one package of Skipjack requires guile >= 1.5: | $ rpm --rebuild gnumeric-1.0.5-1.src.rpm | ... | checking for guile >= 1.5... Your Guile is too old. You need Guile 1.5 or later. | ... Therefore, please upgrade to >= 1.5.
This changes the soname, and therefore the library interface, etc.