args : with args;
	let localDefs = builderDefs {
		src = 
	fetchurl {
		url = http://downloads.sourceforge.net/snd/snd-9.4.tar.gz;
		sha256 = "0zqgfnkvkqxby1k74mwba1r4pb520glcsz5jjmpzm9m41nqnghmm";
	};

		buildInputs = [gtk glib pkgconfig libXpm gmp gettext libX11 fftw]
			++ (lib.optional (args ? ruby) args.ruby)
			++ (lib.optional (args ? mesa) args.mesa)
			++ (lib.optional (args ? guile) args.guile)
			++ (lib.optional (args ? libtool) args.libtool)
			++ (lib.optional (args ? sndlib) args.sndlib)
			++ (lib.optional (args ? alsaLib) args.alsaLib)
			++ (lib.optional (args ? jackaudio) args.jackaudio)
			;
		configureFlags = ["--with-gtk" "--with-xpm"]
			++ (lib.optional (args ? ruby)   "--with-ruby" )
			++ (lib.optional (args ? mesa)   "--with-gl"   )
			++ (lib.optional (args ? guile)  "--with-guile")
			++ (lib.optional (args ? sndlib) "--with-midi" )
			++ (lib.optional (args ? alsaLib)  "--with-alsa")
			++ (lib.optional (args ? jackaudio) "--with-jack" )
                        ++ [ "--with-fftw" "--htmldir=$out/share/snd/html" "--with-doc-dir=$out/share/snd/html" ]
			;
	} null; /* null is a terminator for sumArgs */
	in with localDefs;
	let makeDocsWork = FullDepEntry ''
                # hackish way to make html docs work
                h="$out/share/snd/html"; ensureDir "$h"; cp *.html "$h"
                patch -p1 < ${./doc.patch}
                sed "s@HTML-DIR@$h@" -i index.scm snd-help.c
            '' [defEnsureDir];

            preBuild = FullDepEntry (''
		cp config.log /tmp/snd-config.log
		export NIX_LDFLAGS="$NIX_LDFLAGS -L${libX11}/lib -lX11"
                
            '') [minInit doUnpack makeDocsWork];
in
stdenv.mkDerivation rec {
	name = "Snd-9.4";
	builder = writeScript (name + "-builder")
		(textClosure localDefs [doConfigure preBuild makeDocsWork doMakeInstall doForceShare  ]);
	meta = {
		description = "Snd sound editor.";
                homepage = http://ccrma.stanford.edu/software/snd;
		inherit src;
	};
}