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/applications/editors/vim/vimacs.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, config, vim_configurable, macvim, vimPlugins
+, useMacvim ? stdenv.isDarwin && (config.vimacs.macvim or true)
+, vimacsExtraArgs ? "" }:
+
+stdenv.mkDerivation rec {
+  pname = "vimacs";
+  version = lib.getVersion vimPackage;
+  vimPackage = if useMacvim then macvim else vim_configurable;
+
+  buildInputs = [ vimPackage vimPlugins.vimacs ];
+
+  buildCommand = ''
+    mkdir -p "$out"/bin
+    cp "${vimPlugins.vimacs}"/bin/vim $out/bin/vimacs
+    substituteInPlace "$out"/bin/vimacs \
+      --replace '-vim}' '-@bin@/bin/vim}' \
+      --replace '-gvim}' '-@bin@/bin/vim -g}' \
+      --replace '--cmd "let g:VM_Enabled = 1"' \
+                '--cmd "let g:VM_Enabled = 1" --cmd "set rtp^=@rtp@" ${vimacsExtraArgs}' \
+      --replace @rtp@ ${vimPlugins.vimacs.rtp} \
+      --replace @bin@ ${vimPackage}
+    for prog in vm gvm gvimacs vmdiff vimacsdiff
+    do
+      ln -s "$out"/bin/vimacs $out/bin/$prog
+    done
+  '';
+
+  meta = with lib; {
+    description = "Vim-Improved eMACS: Emacs emulation for Vim";
+    homepage = "http://algorithm.com.au/code/vimacs";
+    license = licenses.gpl2Plus;
+    maintainers = with lib.maintainers; [ millerjason ];
+  };
+}