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/gsasl/default.nix

@@ -0,0 +1,37 @@
+{ fetchurl, lib, stdenv, libidn, libkrb5 }:
+
+stdenv.mkDerivation rec {
+  pname = "gsasl";
+  version = "1.10.0";
+
+  src = fetchurl {
+    url = "mirror://gnu/gsasl/${pname}-${version}.tar.gz";
+    sha256 = "sha256-hby9juYJWt54cCY6KOvLiDL1Qepzk5dUlJJgFcB1aNM=";
+  };
+
+  buildInputs = [ libidn libkrb5 ];
+
+  configureFlags = [ "--with-gssapi-impl=mit" ];
+
+  preCheck = ''
+    export LOCALDOMAIN="dummydomain"
+  '';
+  doCheck = !stdenv.hostPlatform.isDarwin;
+
+  meta = {
+    description = "GNU SASL, Simple Authentication and Security Layer library";
+
+    longDescription =
+      '' GNU SASL is a library that implements the IETF Simple
+         Authentication and Security Layer (SASL) framework and
+         some SASL mechanisms. SASL is used in network servers
+         (e.g. IMAP, SMTP, etc.) to authenticate peers.
+       '';
+
+    homepage = "https://www.gnu.org/software/gsasl/";
+    license = lib.licenses.gpl3Plus;
+
+    maintainers = with lib.maintainers; [ shlevy ];
+    platforms = lib.platforms.all;
+  };
+}