xscope: init at 1.4.1

See the xscope README for more information:

https://cgit.freedesktop.org/xorg/app/xscope/tree/README

pkgs/applications/misc/xscope/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, fetchurl, pkgconfig, libXt }:
+
+stdenv.mkDerivation rec {
+  name = "${pname}-${version}";
+  pname = "xscope";
+  version = "1.4.1";
+
+  src = fetchurl {
+    url = "mirror://xorg/individual/app/${name}.tar.bz2";
+    sha256 = "08zl3zghvbcqy0r5dn54dim84lp52s0ygrr87jr3a942a6ypz01k";
+  };
+
+  nativeBuildInputs = [ pkgconfig ];
+  buildInputs = [ libXt ];
+
+  meta = with stdenv.lib; {
+    description = "program to monitor X11/Client conversations";
+    homepage = https://cgit.freedesktop.org/xorg/app/xscope/;
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ ];
+    platforms = with platforms; unix;
+  };
+}
+

pkgs/top-level/all-packages.nix

@@ -19214,6 +19214,8 @@ with pkgs;
 
   xsd = callPackage ../development/libraries/xsd { };
 
+  xscope = callPackage ../applications/misc/xscope { };
+
   xscreensaver = callPackage ../misc/screensavers/xscreensaver {
     inherit (gnome2) libglade;
   };