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/servers/sql/pgbouncer/default.nix

@@ -0,0 +1,23 @@
+{ lib, stdenv, fetchurl, openssl, libevent, c-ares, pkg-config }:
+
+stdenv.mkDerivation rec {
+  pname = "pgbouncer";
+  version = "1.17.0";
+
+  src = fetchurl {
+    url = "https://pgbouncer.github.io/downloads/files/${version}/${pname}-${version}.tar.gz";
+    sha256 = "sha256-ZXMJt7xceoXL9wqaRBtTX3gkEjCB6rt7qG0ANJolbiM=";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ libevent openssl c-ares ];
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    homepage = "https://pgbouncer.github.io";
+    description = "Lightweight connection pooler for PostgreSQL";
+    license = licenses.isc;
+    maintainers = with maintainers; [ _1000101 ];
+    platforms = platforms.all;
+  };
+}