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/tools/text/cmigemo/default.nix

@@ -0,0 +1,45 @@
+{ lib, stdenv, fetchFromGitHub, fetchurl, buildPackages
+, libiconv, nkf, perl, which
+, skk-dicts
+}:
+
+let
+  iconvBin = if stdenv.isDarwin then libiconv else  buildPackages.stdenv.cc.libc;
+in
+stdenv.mkDerivation {
+  pname = "cmigemo";
+  version = "1.3e";
+
+  src = fetchFromGitHub {
+    owner = "koron";
+    repo = "cmigemo";
+    rev = "5c014a885972c77e67d0d17d367d05017c5873f7";
+    sha256 = "0xrblwhaf70m0knkd5584iahaq84rlk0926bhdsrzmakpw77hils";
+  };
+
+  nativeBuildInputs = [ libiconv nkf perl which ];
+
+  postUnpack = ''
+    cp ${skk-dicts}/share/SKK-JISYO.L source/dict/
+  '';
+
+  patches = [ ./no-http-tool-check.patch ];
+
+  makeFlags = [ "INSTALL=install" ];
+
+  preBuild = ''
+    makeFlagsArray+=(FILTER_UTF8="${lib.getBin iconvBin}/bin/iconv -t utf-8 -f cp932")
+  '';
+
+  buildFlags = [ (if stdenv.isDarwin then "osx-all" else "gcc-all") ];
+
+  installTargets = [ (if stdenv.isDarwin then "osx-install" else "gcc-install") ];
+
+  meta = with lib; {
+    description = "A tool that supports Japanese incremental search with Romaji";
+    homepage = "https://www.kaoriya.net/software/cmigemo";
+    license = licenses.mit;
+    maintainers = [ maintainers.cohei ];
+    platforms = platforms.all;
+  };
+}