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/data/fonts/merriweather-sans/default.nix

@@ -0,0 +1,34 @@
+{ stdenvNoCC
+, lib
+, fetchFromGitHub
+}:
+
+stdenvNoCC.mkDerivation rec {
+  pname = "merriweather-sans";
+  version = "1.008";
+
+  src = fetchFromGitHub {
+    owner = "SorkinType";
+    repo = "Merriweather-Sans";
+    rev = "8a1b078e3aeec6aecc856c3422898816af9b9dc7";
+    sha256 = "1f6a64bv4b4b1v3g2pgrzxcys8rk12wq6wfxamgzligcq5fxaffd";
+  };
+
+  # TODO: it would be nice to build this from scratch, but lots of
+  # Python dependencies to package (fontmake, gftools)
+
+  installPhase = ''
+    install -m444 -Dt $out/share/fonts/truetype/${pname} fonts/ttfs/*.ttf
+    install -m444 -Dt $out/share/fonts/woff/${pname} fonts/woff/*.woff
+    install -m444 -Dt $out/share/fonts/woff2/${pname} fonts/woff2/*.woff2
+    # TODO: install variable version?
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/SorkinType/Merriweather-Sans";
+    description = "Merriweather Sans is a low-contrast semi-condensed sans-serif text typeface family designed to be pleasant to read at very small sizes";
+    license = licenses.ofl;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ emily ];
+  };
+}