Add pdftops CUPS filter

I've packaged this as a separate expression because it depends on poppler (why
don't they look for pdftops on runtime?..).

svn path=/nixpkgs/trunk/; revision=25124

pkgs/misc/cups/pdf-filter.nix

@@ -0,0 +1,43 @@
+{ stdenv, fetchurl, pkgconfig, cups, poppler }:
+
+let version = "1.4.5"; in
+
+stdenv.mkDerivation {
+  name = "cups-pdf-filter-${version}";
+
+  src = fetchurl {
+    url = "http://ftp.easysw.com/pub/cups/${version}/cups-${version}-source.tar.bz2";
+    sha256 = "1zhf3hvx11i0qnbwyybmdhx4fxkxfd4ch69k59fj5bz8wvcdcl04";
+  };
+
+  buildInputs = [ pkgconfig cups poppler ];
+
+  preConfigure = ''
+    sed -e 's@\.\./cups/$(LIBCUPS)@@' -e 's@$(LIBCUPSIMAGE)@@' -i filter/Makefile
+    ''; 
+
+  NIX_LDFLAGS="-L${cups}/lib";
+
+  configureFlags = ''
+    --localstatedir=/var --enable-dbus
+    --enable-image --with-pdftops=pdftops'';
+
+  buildPhase = ''
+    cd filter
+    make pdftops
+    '';
+
+  installPhase = ''
+    mkdir -pv $out/lib/cups/filter
+    cp -v pdftops $out/lib/cups/filter
+    '';
+
+
+  meta = {
+    homepage = http://www.cups.org/;
+    description = "Image and pdf filters for CUPS";
+    license = "GPLv2";
+    maintainers = [ stdenv.lib.maintainers.urkud ];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -7124,6 +7124,8 @@ let
 
   cups = callPackage ../misc/cups { };
 
+  cups_pdf_filter = callPackage ../misc/cups/pdf-filter.nix { };
+
   gutenprint = callPackage ../misc/drivers/gutenprint { };
 
   gutenprintBin = callPackage ../misc/drivers/gutenprint/bin.nix { };