gnu: Add pscircle.

* gnu/packages/admin.scm (pscircle): New variable.

gnu/packages/admin.scm

@@ -46,6 +46,7 @@
   #:use-module (guix git-download)
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system meson)
   #:use-module (guix build-system perl)
   #:use-module (guix build-system python)
   #:use-module (guix build-system trivial)
@@ -2740,3 +2741,30 @@ support forum.  It runs with the @code{/exec} command in most IRC clients.")
        ;; perl-xml-dumper
        ;; ipmitool
        ,@(package-inputs inxi-minimal)))))
+
+(define-public pscircle
+  (package
+    (name "pscircle")
+    (version "1.1.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://gitlab.com/mildlyparallel/pscircle/-/archive/v"
+             version "/pscircle-v" version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1k757yf2bmgfrjd417l6kpcf83hlvi0z1791vz967mwcklrsb3fj"))))
+    (build-system meson-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("cairo" ,cairo)
+       ("libpng" ,libpng)
+       ("libx11" ,libx11)))
+    (home-page "https://gitlab.com/mildlyparallel/pscircle")
+    (synopsis "Visualize Linux processes in a form of radial tree")
+    (description
+     "@code{pscircle} visualizes Linux processes in the form of a radial tree.")
+    (license license:gpl2+)))