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/libraries/stfl/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchurl, ncurses, libiconv }:
+
+stdenv.mkDerivation rec {
+  pname = "stfl";
+  version = "0.24";
+
+  src = fetchurl {
+    url = "http://www.clifford.at/stfl/stfl-${version}.tar.gz";
+    sha256 = "1460d5lc780p3q38l3wc9jfr2a7zlyrcra0li65aynj738cam9yl";
+  };
+
+  buildInputs = [ ncurses libiconv ];
+
+  preBuild = ''
+    sed -i s/gcc/cc/g Makefile
+    sed -i s%ncursesw/ncurses.h%ncurses.h% stfl_internals.h
+  '' + lib.optionalString stdenv.isDarwin ''
+    sed -i s/-soname/-install_name/ Makefile
+  '';
+
+  installPhase = ''
+    DESTDIR=$out prefix=\"\" make install
+
+    # some programs rely on libstfl.so.0 to be present, so link it
+    ln -s $out/lib/libstfl.so.0.24 $out/lib/libstfl.so.0
+  '';
+
+  meta = {
+    homepage = "http://www.clifford.at/stfl/";
+    description = "A library which implements a curses-based widget set for text terminals";
+    maintainers = with lib.maintainers; [ lovek323 ];
+    license = lib.licenses.lgpl3;
+    platforms = lib.platforms.unix;
+  };
+}