uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/tools/X11/primus/default.nix

@@ -0,0 +1,34 @@
+# For a 64bit + 32bit system the LD_LIBRARY_PATH must contain both the 32bit and 64bit primus
+# libraries. Providing a different primusrun for each architecture will not work as expected. EG:
+# Using steam under wine can involve both 32bit and 64bit process. All of which inherit the
+# same LD_LIBRARY_PATH.
+# Other distributions do the same.
+{ stdenv
+, stdenv_i686
+, lib
+, primusLib
+, writeScriptBin
+, runtimeShell
+, primusLib_i686 ? null
+, useNvidia ? true
+}:
+
+let
+  # We override stdenv in case we need different ABI for libGL
+  primusLib_ = primusLib.override { inherit stdenv; };
+  primusLib_i686_ = primusLib_i686.override { stdenv = stdenv_i686; };
+
+  primus = if useNvidia then primusLib_ else primusLib_.override { nvidia_x11 = null; };
+  primus_i686 = if useNvidia then primusLib_i686_ else primusLib_i686_.override { nvidia_x11 = null; };
+  ldPath = lib.makeLibraryPath (lib.filter (x: x != null) (
+    [ primus primus.glvnd ]
+    ++ lib.optionals (primusLib_i686 != null) [ primus_i686 primus_i686.glvnd ]
+  ));
+
+in writeScriptBin "primusrun" ''
+  #!${runtimeShell}
+  export LD_LIBRARY_PATH=${ldPath}''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH
+  # https://bugs.launchpad.net/ubuntu/+source/bumblebee/+bug/1758243
+  export __GLVND_DISALLOW_PATCHING=1
+  exec "$@"
+''