Heya,

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

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

@@ -188,6 +193,70 @@ (define-public bspwm

+      #:tests? #f  ;;;tests not found

If there *are* actually tests, could you try to patch it to make them
work?

+            (lambda _
+              (substitute* "./CMakeLists.txt"
+                (("DESTINATION \\$\\{SYSTEM_BUS_DIR\\}")
+                 (string-append "DESTINATION "
+                                #$output "/share/dbus-1/system-services"))
+                (("DESTINATION \\$\\{POLKIT_ACTION_DIR\\}")
+                 (string-append "DESTINATION "
+                                #$output "/share/polkit-1/actions"))))

Maybe add these configure flags instead?

  (string-append "-DSYSTEM_BUS_DIR="
                 #$output "/share/dbus-1/system-services")
  (string-append "-DPOLKIT_ACTION_DIR="
                 #$output "/share/polkit-1/actions")

I'm not sure if that'll even work, I don't do CMake :)

+    (description "Bus interface for many display capabilities")
+    (synopsis "Clightd is a bus interface that lets you easily set/get screen
+ brightness, gamma temperature and display dpms state. Moreover, it enables
+ getting ambient brightness through webcam frames capture or ALS devices.

I think you got "description" and "synopsis" the wrong way round :)

    -- (