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/mail/dovecot/plugins/fts_xapian/default.nix

@@ -0,0 +1,36 @@
+{ lib, stdenv, fetchFromGitHub, autoconf, automake, sqlite, pkg-config, dovecot, libtool, xapian, icu64 }:
+stdenv.mkDerivation rec {
+  pname = "dovecot-fts-xapian";
+  version = "1.5.5";
+
+  src = fetchFromGitHub {
+    owner = "grosjo";
+    repo = "fts-xapian";
+    rev = version;
+    sha256 = "sha256-KAZno4N/4dFH3QHFTs0wkY4PtGF+j4ZEjZzn9ljCjrM=";
+  };
+
+  buildInputs = [ dovecot xapian icu64 sqlite ];
+
+  nativeBuildInputs = [ autoconf automake libtool pkg-config ];
+
+  preConfigure = ''
+    export PANDOC=false
+    autoreconf -vi
+  '';
+
+  configureFlags = [
+    "--with-dovecot=${dovecot}/lib/dovecot"
+    "--with-moduledir=$(out)/lib/dovecot"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/grosjo/fts-xapian";
+    description = "Dovecot FTS plugin based on Xapian";
+    changelog = "https://github.com/grosjo/fts-xapian/releases";
+    license = licenses.lgpl21Only;
+    maintainers = with maintainers; [ julm symphorien ];
+    platforms = platforms.unix;
+    broken = stdenv.isDarwin; # never built on Hydra https://hydra.nixos.org/job/nixpkgs/trunk/dovecot_fts_xapian.x86_64-darwin
+  };
+}