I do not have time or resources to do it myself, or even to make a real bug report, but those interested in improving Guile 2.2 might want to figure out why it cannot compile https://bitbucket.org/sortsmill/sortsmill-core-guile. Guile 2.0 has no trouble.
(One needs https://bitbucket.org/sortsmill/sortsmill-core to build it.) (Core Guile also presents an example of automatically compiling Guile sources in dependency order, in case one is interested in that.)