acpi, suspend, hibernate

[白い熊＠相撲道]

I have GuixSD installed on the Gluglug X200 and would like to issue 
suspend and hibernate commands. Upon inspecting /proc/acpi however it 
seems that this is not built in the current kernel that I have booted.

Do I need to add some acpi, acpi-service etc. to config.scm and 
reconfigure? Could someone specify what exactly is needed?

Many thanks.
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白い熊＠相撲道