On Sat, 13 Jun 2020, Josh Marshall wrote:

> The thing is that I want those dependencies in order to illustrate the bug that the readline module for guile is not available. 

In that case, I think you can get what you want with

guix environment --pure guile guile-readline --ad-hoc guile-readline

However, I'm beginning to think that I don't userstand your question. Can 
you try asking again or perhaps someone else who sees what I'm missing can 
answer.

Best,
Jack