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/development/libraries/tdb/default.nix

@@ -0,0 +1,59 @@
+{ lib, stdenv
+, fetchurl
+, pkg-config
+, wafHook
+, python3
+, readline
+, libxslt
+, docbook-xsl-nons
+, docbook_xml_dtd_45
+}:
+
+stdenv.mkDerivation rec {
+  pname = "tdb";
+  version = "1.4.6";
+
+  src = fetchurl {
+    url = "mirror://samba/tdb/${pname}-${version}.tar.gz";
+    sha256 = "sha256-1okr2L7+BKd2QqHdVuSoeTSb8c9bLAv1+4QQYZON7ws=";
+  };
+
+  nativeBuildInputs = [
+    python3
+    pkg-config
+    wafHook
+    libxslt
+    docbook-xsl-nons
+    docbook_xml_dtd_45
+  ];
+
+  buildInputs = [
+    python3
+    readline # required to build python
+  ];
+
+  wafPath = "buildtools/bin/waf";
+
+  wafConfigureFlags = [
+    "--bundled-libraries=NONE"
+    "--builtin-libraries=replace"
+  ];
+
+  # python-config from build Python gives incorrect values when cross-compiling.
+  # If python-config is not found, the build falls back to using the sysconfig
+  # module, which works correctly in all cases.
+  PYTHON_CONFIG = "/invalid";
+
+  meta = with lib; {
+    description = "The trivial database";
+    longDescription = ''
+      TDB is a Trivial Database. In concept, it is very much like GDBM,
+      and BSD's DB except that it allows multiple simultaneous writers
+      and uses locking internally to keep writers from trampling on each
+      other. TDB is also extremely small.
+    '';
+    homepage = "https://tdb.samba.org/";
+    license = licenses.lgpl3Plus;
+    platforms = platforms.all;
+  };
+}