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/tools/parsing/lemon/default.nix

@@ -0,0 +1,45 @@
+{ lib, stdenv, fetchurl }:
+
+let
+
+  srcs = {
+    lemon = fetchurl {
+      sha256 = "1c5pk2hz7j9hix5mpc38rwnm8dnlr2jqswf4lan6v78ccbyqzkjx";
+      url = "http://www.sqlite.org/src/raw/tool/lemon.c?name=680980c7935bfa1edec20c804c9e5ba4b1dd96f5";
+      name = "lemon.c";
+    };
+    lempar = fetchurl {
+      sha256 = "1ba13a6yh9j2cs1aw2fh4dxqvgf399gxq1gpp4sh8q0f2w6qiw3i";
+      url = "http://www.sqlite.org/src/raw/tool/lempar.c?name=01ca97f87610d1dac6d8cd96ab109ab1130e76dc";
+      name = "lempar.c";
+    };
+  };
+
+in stdenv.mkDerivation {
+  pname = "lemon";
+  version = "1.69";
+
+  dontUnpack = true;
+
+  buildPhase = ''
+    sh -xc "$CC ${srcs.lemon} -o lemon"
+  '';
+
+  installPhase = ''
+    install -Dvm755 lemon $out/bin/lemon
+    install -Dvm644 ${srcs.lempar} $out/bin/lempar.c
+  '';
+
+  meta = with lib; {
+    description = "An LALR(1) parser generator";
+    longDescription = ''
+      The Lemon program is an LALR(1) parser generator that takes a
+      context-free grammar and converts it into a subroutine that will parse a
+      file using that grammar. Lemon is similar to the much more famous
+      programs "yacc" and "bison", but is not compatible with either.
+    '';
+    homepage = "http://www.hwaci.com/sw/lemon/";
+    license = licenses.publicDomain;
+    platforms = platforms.unix;
+  };
+}