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/lc3tools/default.nix

@@ -0,0 +1,47 @@
+{ lib, stdenv, fetchurl, unzip, flex, tk, ncurses, readline }:
+
+stdenv.mkDerivation {
+  pname = "lc3tools";
+  version = "0.12";
+
+  src = fetchurl {
+    url = "https://highered.mheducation.com/sites/dl/free/0072467509/104652/lc3tools_v12.zip";
+    hash = "sha256-PTM0ole8pHiJmUaahjPwcBQY8/hVVgQhADZ4bSABt3I=";
+  };
+
+  patches = [
+    # the original configure looks for things in the FHS path
+    # I have modified it to take environment vars
+    ./0001-mangle-configure.patch
+
+    # lc3sim looks for the LC3 OS in $out/share/lc3tools instead of $out
+    ./0002-lc3os-path.patch
+
+    # lc3sim-tk looks for lc3sim in $out/bin instead of $out
+    ./0003-lc3sim-tk-path.patch
+  ];
+
+  nativeBuildInputs = [ unzip ];
+  buildInputs = [ flex tk ncurses readline ];
+
+  # lumetta published this a while ago but handrolled his configure
+  # jank in the original packaging makes this necessary:
+  LIBS = "${flex}/lib:${ncurses}/lib:${readline}/lib";
+  INCLUDES = "${flex}/include:${ncurses}/include:${readline}/include";
+
+  # it doesn't take `--prefix`
+  prefixKey = "--installdir ";
+
+  postInstall = ''
+    mkdir -p $out/{bin,share/lc3tools}
+
+    mv -t $out/share/lc3tools $out/{COPYING,NO_WARRANTY,README} $out/lc3os*
+    mv -t $out/bin $out/lc3*
+  '';
+
+  meta = with lib; {
+    description = "Toolchain and emulator for the LC-3 architecture";
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ anna328p ];
+  };
+}