gnu: Add jgmenu.

* gnu/packages/xdisorg.scm (jgmenu): New variable.

gnu/packages/xdisorg.scm

@@ -29,6 +29,7 @@
 ;;; Copyright © 2019 Kyle Andrews <kyle.c.andrews@gmail.com>
 ;;; Copyright © 2019 Josh Holland <josh@inv.alid.pw>
 ;;; Copyright © 2019 Tanguy Le Carrour <tanguy@bioneland.org>
+;;; Copyright © 2020 Guillaume Le Vaillant <glv@posteo.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1944,3 +1945,51 @@ (define-public autocutsel
 cutbuffer.  When the cutbuffer is changed, it owns the clipboard selection.
 The cutbuffer and clipboard selection are always synchronized.")
     (license license:gpl2+)))
+
+(define-public jgmenu
+  (package
+    (name "jgmenu")
+    (version "3.5")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/johanmalm/jgmenu.git")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "0q0m3sskgmjv28gzvjkphgg3yhwzc9w9fj9i342pibb50impjazy"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("perl" ,perl)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("cairo" ,cairo)
+       ("librsvg" ,librsvg)
+       ("libx11" ,libx11)
+       ("libxml2" ,libxml2)
+       ("libxrandr" ,libxrandr)
+       ("pango" ,pango)
+       ("python" ,python)))
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'fix-paths
+                    (lambda* (#:key inputs #:allow-other-keys)
+                      (let ((python (assoc-ref inputs "python")))
+                        (substitute* "src/jgmenu-pmenu.py"
+                          (("#!/usr/bin/env python3")
+                           (string-append "#!" python "/bin/python3")))
+                        #t)))
+                  (replace 'configure
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out")))
+                        (setenv "prefix" out)
+                        (setenv "CC" "gcc")
+                        #t))))))
+    (synopsis "Simple X11 menu")
+    (description
+     "This is a simple menu for X11 designed for scripting and tweaking.  It
+can optionally use some appearance settings from XSettings, tint2 and GTK.")
+    (home-page "https://jgmenu.github.io/")
+    (license license:gpl2)))