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/aewan/default.nix

@@ -0,0 +1,31 @@
+{ lib, stdenv, fetchurl, fetchpatch, zlib, ncurses }:
+
+stdenv.mkDerivation rec {
+  pname = "aewan";
+  version = "1.0.01";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/aewan/${pname}-${version}.tar.gz";
+    sha256 = "5266dec5e185e530b792522821c97dfa5f9e3892d0dca5e881d0c30ceac21817";
+  };
+
+  patches = [
+    # Pull patch pending upstream inclusion:
+    #  https://sourceforge.net/p/aewan/bugs/13/
+    (fetchpatch {
+      url = "https://sourceforge.net/p/aewan/bugs/13/attachment/aewan-cvs-ncurses-6.3.patch";
+      sha256 = "0pgpk1l3d6d5y37lvvavipwnmv9gmpfdy21jkz6baxhlkgf43r4p";
+      # patch is in CVS diff format, add 'a/' prefix
+      extraPrefix = "";
+    })
+  ];
+
+  buildInputs = [ zlib ncurses ];
+
+  meta = {
+    description = "Ascii-art Editor Without A Name";
+    homepage = "http://aewan.sourceforge.net/";
+    license = lib.licenses.gpl2Plus;
+    platforms = lib.platforms.unix;
+  };
+}