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/filesystems/fsfs/default.nix

@@ -0,0 +1,32 @@
+{lib, stdenv, fetchurl, openssl, fuse}:
+
+throw "It still does not build"
+
+stdenv.mkDerivation rec {
+  pname = "fsfs";
+  version = "0.1.1";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/fsfs/fsfs-${version}.tar.gz";
+    sha256 = "05wka9aq182li2r7gxcd8bb3rhpns7ads0k59v7w1jza60l57c74";
+  };
+
+  buildInputs = [ fuse openssl ];
+
+  patchPhase = ''
+    sed -i -e 's,CONFDIR=\(.*\),CONFDIR='$out/etc, \
+      -e 's,USERCONFPREFIX=\(.*\),USERCONFPREFIX='$out/var/lib, Makefile \
+      src/Makefile src/utils/Makefile
+  '';
+
+  preInstall = ''
+    mkdir -p $out/etc $out/var/lib
+    makeFlags="$makeFlags prefix=$out"
+  '';
+
+  meta = {
+    homepage = "http://fsfs.sourceforge.net/";
+    description = "Secure distributed file system in user space";
+    license = lib.licenses.gpl2Plus;
+  };
+}