Hello Guix, I am closing this bug in response to Leo’s message on guix-devel [0].
This particular issue has been solved quite some time ago and GCL and Maxima have both been updated since. Maxima currently fails to build for a different reason for which I have opened a new bug report [1]. Regards, Diego [0]: https://lists.gnu.org/archive/html/guix-devel/2019-02/msg00220.html [1]: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34484
