From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jone <yeger9@gmail.com>
Subject: Re: A few questions about packages
Date: Mon, 12 Mar 2018 00:43:19 +0300
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> On 07/03/2018, Jone wrote:

> Hello. Can I remove old package versions and other builds? On the=20
> example of Icecat:
>=20
>  =C2=A0=C2=A0=C2=A0 252.1 MiB [=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 ]=20
> /5ym67s5vp1vmnc3y4ds4r3687vc3nl25-icecat-52.6.0-gnu1
>  =C2=A0=C2=A0=C2=A0 252.0 MiB [=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 ]=20
> /360i9ca4gnm3rsjj8v43ih0j3mfrp40n-icecat-52.6.0-gnu1
>  =C2=A0=C2=A0=C2=A0 246.8 MiB [=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 ]=20
> /kd0nnq3i0qarx4vqxcampxfj3igxn84h-icecat-52.3.0-gnu1

Seems I has understood not until the end of..
After running 'guix package -d && guix gc':

ls -d /gnu/store/*gtk+*/

/gnu/store/9kv6d924wcii38zwd4jbkxzlaz8hsl4z-gtk+-3.22.26/
/gnu/store/baps67ax5wj5njl7mcpg825v7wvcd1g6-gtk+-3.22.21/
/gnu/store/blxcjvmcpm4h80wmzrjh8z8hxjp6a7cj-gtk+-2.24.31/
/gnu/store/gfz7znplsbgsw2npdbz5vgfl90q222hv-gtk+-3.22.26/
/gnu/store/j74pvcwvx93fnaq3j6jj1rxzhj80bk16-gtk+-2.24.31/
/gnu/store/jwaxdxsxfd220dx5a1crcbw3nh2nnpmy-gtk+-2.24.31/
/gnu/store/kx3p64ff6pnyj2wppj78s3d41a49d4lp-gtk+-3.22.26-bin/
/gnu/store/lf7379mdvch8y1i1ds4lqblm43sfzlbf-gtk+-2.24.31/
/gnu/store/mnxrb9zgbdglhsr98h7r2skn6wv7zvsp-gtk+-2.24.31/
/gnu/store/rbzlcg13vpabvj2sr6c67icd15wq0vhz-gtk+-2.24.31/
/gnu/store/wsdqwpm22l8dgqqibzbgx5zn4bnkz0ci-gtk+-3.22.26/Can be as somethin=
g optimize?
/gnu/store/z23h6jgiyv180gxvmdc8xnpaqxd2bm7k-gtk+-2.24.31/
/gnu/store/zpvxja0ajxddyxjc1lsnhz53j0ysh822-gtk+-2.24.31/

How can I verify if these paths are needed and for what purpose? Can be
as something optimize (guix gc --optimize not do anything)?