editres: add version 1.0.6

The tool doesn't seem to work well for me. Not sure whether I'm building
it wrong, maybe?

pkgs/tools/graphics/editres/default.nix

@@ -0,0 +1,22 @@
+{ stdenv, fetchurl, pkgconfig, libXt, libXaw, libXres, utilmacros }:
+
+stdenv.mkDerivation rec {
+  name = "editres-1.0.6";
+
+  src = fetchurl {
+    url = "http://xorg.freedesktop.org/releases/individual/app/${name}.tar.gz";
+    sha256 = "06kv7dmw6pzlqc46dbh8k9xpb6sn4ihh0bcpxq0zpvw2lm66dx45";
+  };
+
+  buildInputs = [ pkgconfig libXt libXaw libXres utilmacros ];
+
+  preConfigure = "configureFlags=--with-appdefaultdir=$out/share/X11/app-defaults/editres";
+
+  meta = {
+    homepage = "http://cgit.freedesktop.org/xorg/app/editres/";
+    description = "a dynamic resource editor for X Toolkit applications";
+
+    platforms = stdenv.lib.platforms.linux;
+    maintainers = [ stdenv.lib.maintainers.simons ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -755,6 +755,11 @@ let
 
   ecryptfs = callPackage ../tools/security/ecryptfs { };
 
+  editres = callPackage ../tools/graphics/editres {
+    inherit (xlibs) libXt libXaw;
+    inherit (xorg) utilmacros;
+  };
+
   edk2 = callPackage ../development/compilers/edk2 { };
 
   efibootmgr = callPackage ../tools/system/efibootmgr { };