dzen2: new package

"Dzen is a general purpose messaging, notification and menuing program for X11. It was designed to be fast, tiny and scriptable in any language." -- https://github.com/robm/dzen

pkgs/applications/window-managers/dzen2/default.nix

···
+{ stdenv, fetchurl, pkgconfig, libX11, libXft, libXinerama, libXpm }:
+
+stdenv.mkDerivation rec {
+  name = "dzen2-0.9.5";
+
+  buildInputs = [ pkgconfig libX11 libXft libXinerama libXpm ];
+
+  src = fetchurl {
+    url = "https://github.com/robm/dzen/tarball/master/dzen2-0.9.5git.tar.gz";
+    sha256 = "d4f7943cd39dc23fd825eb684b49dc3484860fa8443d30b06ee38af72a53b556";
+  };
+
+  patchPhase = ''
+    CFLAGS=" -Wall -Os ''${INCS} -DVERSION=\"''${VERSION}\" -DDZEN_XINERAMA -DDZEN_XPM -DDZEN_XFT `pkg-config --cflags xft`"
+    LIBS=" -L/usr/lib -lc -lXft -lXpm -lXinerama -lX11"
+    echo "CFLAGS=$CFLAGS" >>config.mk
+    echo "LIBS=$LIBS" >>config.mk
+    echo "LDFLAGS=$LIBS" >>config.mk
+    substituteInPlace config.mk --replace /usr/local "$out"
+    substituteInPlace gadgets/config.mk --replace /usr/local "$out"
+  '';
+
+  buildPhase = ''
+    mkdir -p $out/bin $out/man/man1
+    make clean install
+    cd gadgets
+    make clean install
+  '';
+
+  meta = {
+    homepage = https://github.com/robm/dzen;
+    license = stdenv.lib.licenses.mit;
+    description = "X notification utility";
+    platforms = stdenv.lib.platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

···
     patches = config.dwm.patches or [];
   };
 
+  dzen2 = callPackage ../applications/window-managers/dzen2 { };
+
   eaglemode = callPackage ../applications/misc/eaglemode { };
 
   eclipses = recurseIntoAttrs (callPackage ../applications/editors/eclipse { });