Ludo', On 21/04/17 19:24, Ludovic Courtès wrote: > Only in modules that import (guix ui). > > This is due to the fact that macros in Guile 2.2 match “literals” > differently: normal bindings (like ‘_’ from (guix ui)) can shadow > literals. The ‘NEWS’ file of Guile 2.2 puts it this way: [...] Thanks for the explanation :-) Kind regards, T G-R