Hello! I have been running `guix system reconfigure /etc/config.scm` before, and it finished after 1 or 2 hours. Now it is working more than 6 hours on Lenovo G50-30. It compiles everything
http://0x0.st/sxda.png http://0x0.st/sxnm.png even icecat http://0x0.st/sx51.png I want it uses binaries, do not need to compile sources. Cannot understand, why adding (packages (cons* icecat)) produces compilation process of icecat?
Please, what is wrong?

My current /etc/config.scm is this:
# cat /etc/config.scm
;; This is an operating system configuration template
;; for a "desktop" setup with GNOME and Xfce where the
;; root partition is encrypted with LUKS.

(use-modules (gnu) (gnu system nss)
             (gnu packages lxde)
             (gnu packages gnuzilla)
             (gnu packages image-viewers)
             (gnu packages curl)
             (gnu packages wget)
             (gnu packages compression)
)
(use-service-modules desktop)
(use-package-modules certs gnome)

(operating-system
  (host-name "antelope")
  (timezone "Europe/Moscow")
  (locale "en_US.utf8")

  ;; Use the UEFI variant of GRUB with the EFI System
  ;; Partition mounted on /boot/efi.
  (bootloader (bootloader-configuration
                (bootloader grub-bootloader)
                (target "/dev/sda")))

  (file-systems (cons (file-system
                        (device "/dev/sda1")
                        (mount-point "/")
                        (type "ext4")
                        )
                      %base-file-systems))

  (swap-devices '("/dev/sda2"))

  (users (cons* (user-account
                (name "bob")
                (comment "bob is good too")
                (group "users")
                (supplementary-groups '("wheel" "netdev"
                                        "audio" "video"))
                (home-directory "/home/bob"))
               %base-user-accounts))

  ;; This is where we specify system-wide packages.
  (packages (cons* nss-certs         ;for HTTPS access
                   gvfs              ;for user mounts
                   lxde lxde-common lxde-icon-theme
                    lxpanel lxmenu-data lxinput lxsession
                   pcmanfm
                   gedit file-roller evince gpicview
                   icecat
                   curl wget unzip
                   %base-packages))

  ;; Add GNOME and/or Xfce---we can choose at the log-in
  ;; screen with F1.  Use the "desktop" services, which
  ;; include the X11 log-in service, networking with
  ;; NetworkManager, and more.
  (services (cons* (xfce-desktop-service)
                   %desktop-services))

  ;; Allow resolution of '.local' host names with mDNS.
  (name-service-switch %mdns-host-lookup-nss))

And my old config was this:
# cat /root/config.scm
;; This is an operating system configuration template
;; for a "desktop" setup with GNOME and Xfce where the
;; root partition is encrypted with LUKS.

(use-modules (gnu) (gnu system nss))
(use-service-modules desktop)
(use-package-modules certs gnome)

(operating-system
  (host-name "antelope")
  (timezone "Europe/Moscow")
  (locale "en_US.utf8")

  ;; Use the UEFI variant of GRUB with the EFI System
  ;; Partition mounted on /boot/efi.
  (bootloader (bootloader-configuration
                (bootloader grub-bootloader)
                (target "/dev/sda")))

  (file-systems (cons (file-system
                        (device "/dev/sda1")
                        (mount-point "/")
                        (type "ext4")
                        )
                      %base-file-systems))

  (swap-devices '("/dev/sda2"))

  (users (cons* (user-account
                (name "bob")
                (comment "bob is good too")
                (group "users")
                (supplementary-groups '("wheel" "netdev"
                                        "audio" "video"))
                (home-directory "/home/bob"))
               %base-user-accounts))

  ;; This is where we specify system-wide packages.
  (packages (cons* nss-certs         ;for HTTPS access
                   gvfs              ;for user mounts
                   %base-packages))

  ;; Add GNOME and/or Xfce---we can choose at the log-in
  ;; screen with F1.  Use the "desktop" services, which
  ;; include the X11 log-in service, networking with
  ;; NetworkManager, and more.
  (services (cons* (xfce-desktop-service)
                   %desktop-services))

  ;; Allow resolution of '.local' host names with mDNS.
  (name-service-switch %mdns-host-lookup-nss))

Why new config takes so much time? And after new system reconfiguration I have KDE and Gnome. But I need only LXDE and Xfce.