Heya,

* gnu/packages/wm.scm (clight): New variable.

--- a/gnu/packages/wm.scm
+++ b/gnu/packages/wm.scm

@@ -194,6 +195,61 @@ (define-public bspwm

+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after
+              'patch-source-shebangs 'patch-target-dirs
+            (lambda _
+              (substitute*
+                  "./CMakeLists.txt"
+                (("DESTINATION \\$\\{SESSION_BUS_DIR\\}")
+                 (string-append "DESTINATION " #$output "/share/dbus-1/services"))
+                (("DESTINATION /etc/xdg/autostart")
+                 (string-append "DESTINATION " #$output "/etc/xdg/autostart"))
+                (("DESTINATION /usr/share/*")
+                 (string-append "DESTINATION " #$output "/share/*")))
+              #t)))))

Same here; couldn't these be -D flags, except for the /usr/share/*
replacement?  Also, #T at the end isn't necessary anymore :)

+    (synopsis "User daemon utility to fully manage screens")

  (synopsis "Daemon for managing screens")

+    (description "Clight is a tiny C utility that can turn your webcam
+into a light sensor; moreover it supports a redshift-like gamma
+control, a screen dimmer and dpms settings.
+It is the userspace interface for clightd.")

  (description
   "@command{clight} is the interface to @command{clightd}.  It implements
  gamma control akin to @command{redshift}, a screen dimmer, and dpms settings.
  It can also turn your webcam into a light sensor.")

    -- (