* Added rss-glx, a collection of nice OpenGL screensavers.

svn path=/nixpkgs/trunk/; revision=4614

pkgs/misc/screensavers/rss-glx/builder.sh

@@ -0,0 +1,29 @@
+source $stdenv/setup
+
+# This is a very dirty hack to prevent the binaries from putting the
+# Mesa libraries in their RPATHs.
+ensureDir $out/tmp
+ln -s $mesa/lib/* $out/tmp/
+ensureDir $out/lib
+ln -s $mesa/lib/libGLU* $out/lib/
+export NIX_LDFLAGS="-L$out/tmp $NIX_LDFLAGS"
+
+genericBuild
+
+rm -rf $out/tmp
+
+
+# Add a wrapper around each program to use the appropriate OpenGL driver.
+ensureDir $out/bin/.orig
+
+for i in $(cd $out/bin && ls); do
+    mv $out/bin/$i $out/bin/.orig/$i
+    cat >$out/bin/$i <<EOF
+mesa=$mesa
+
+$(cat $mesaSwitch)
+
+exec $out/bin/.orig/$i "\$@"
+EOF
+    chmod +x $out/bin/$i
+done

pkgs/misc/screensavers/rss-glx/default.nix

@@ -0,0 +1,16 @@
+{stdenv, fetchurl, x11, mesa}:
+
+stdenv.mkDerivation {
+  name = "rss-glx-0.8.0";
+  builder = ./builder.sh;
+
+  src = fetchurl {
+    url = http://surfnet.dl.sourceforge.net/sourceforge/rss-glx/rss-glx_0.8.0.tar.bz2;
+    md5 = "d04e909521626a27f9f6d9b5f8a24d6c";
+  };
+
+  buildInputs = [x11 mesa];
+  inherit mesa;
+  
+  mesaSwitch = ../../../build-support/opengl/mesa-switch.sh;
+}