Added helper for adding Debian packages

svn path=/nixpkgs/trunk/; revision=10906

pkgs/build-support/deb-package/default.nix

@@ -0,0 +1,38 @@
+args : with args;	
+	let 
+       	localDefs = with (builderDefs {src="";} null);
+	 builderDefs {
+		inherit src;
+		buildInputs = [];
+		configureFlags = [];
+		makeFlags =  [];
+		patch = null;
+		meta = {};
+		doInstall = if args ? Install then 
+		(FullDepEntry 
+		  args.Install 
+		  (["doMake"] 
+		  ++ (lib.getAttr ["extraInstallDeps"] [] args))
+		)
+		else FullDepEntry "" ["doMakeInstall"];
+
+		debPatch = FullDepEntry ((if args ? patch then ''
+		  gunzip < ${args.patch} | patch -Np1
+		'' else "")
+		+''
+		  sed -e 's/-o root//' -i Makefile Makefile.in Makefile.new || true;
+		  sed -e 's/-g root//' -i Makefile Makefile.in Makefile.new || true;
+		''
+		+ (if args ? extraReplacements then 
+		  args.extraReplacements 
+		else ""))["minInit" "doUnpack"];
+	} args null; /* null is a terminator for sumArgs */
+	in with localDefs;
+stdenv.mkDerivation rec {
+	name = localDefs.name + "deb";
+	builder = writeScript (name + "-builder")
+		(textClosure localDefs ([debPatch] ++ 
+		(lib.optional (! (args ? omitConfigure)) "doConfigure")
+		++ [doInstall doForceShare]));
+	inherit meta;
+}