From mboxrd@z Thu Jan  1 00:00:00 1970
From: swedebugia@riseup.net
Subject: Re: Deleting services from %desktop-services in operating system
	declaration
Date: Sat, 23 Jan 2016 14:09:58 +0100
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To: ludo@gnu.org
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On 2016-01-21 00:24, ludo@gnu.org wrote:
> swedebugia@riseup.net skribis:
>=20
>> I have trouble getting the syntax right to delete avahi and wicd from
>> my config.scm.
>=20
> The correct syntax would be:
>=20
>   (operating-system
>     ;; =E2=80=A6
>     (services (remove (lambda (service)
>                         (or (eq? (service-kind service)
>                                  wicd-service-type)
>                             (eq? (service-kind service)
>                                  avahi-service-type)))
>                       %desktop-services)))

I tried this and got this error:
# guix system reconfigure /etc/config/config.scm
guix system: error: failed to load '/etc/config/config.scm':
/etc/config/config.scm:48:12: In procedure #<procedure a7c3530 ()>:
/etc/config/config.scm:48:12: In procedure module-lookup: Unbound=20
variable: remove

Config here: https://paste.debian.net/367385/

> As David notes, =E2=80=98%desktop-services=E2=80=99 is a list of servic=
e objects.  To
> remove elements from a list, the right procedure is =E2=80=98remove=E2=80=
=99 (info
> "(guile) SRFI-1 Filtering and Partitioning").

Thanks for the tip!

>> The manual does not yet have examples of how to delete one or more
>> entries from the %base-services or other lists.
>=20
> I=E2=80=99ve added this example in commit 5d94ac5.

:)

cheers
sdb