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/compilers/mint/default.nix

@@ -0,0 +1,35 @@
+{ lib, fetchFromGitHub, crystal, openssl }:
+
+crystal.buildCrystalPackage rec {
+  version = "0.15.1";
+  pname = "mint";
+
+  src = fetchFromGitHub {
+    owner = "mint-lang";
+    repo = "mint";
+    rev = version;
+    sha256 = "sha256-naiZ51B5TBc88wH4Y7WcrkdFnZosEVCS5MlLAGVe8/E=";
+  };
+
+  postPatch = ''
+    export HOME=$TMP
+  '';
+
+  format = "shards";
+
+  # Update with
+  #   nix-shell -p crystal2nix --run crystal2nix
+  # with mint's shard.lock file in the current directory
+  shardsFile = ./shards.nix;
+
+  buildInputs = [ openssl ];
+
+  meta = with lib; {
+    description = "A refreshing language for the front-end web";
+    homepage = "https://mint-lang.com/";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ manveru ];
+    platforms = [ "x86_64-linux" "i686-linux" "x86_64-darwin" ];
+    broken = lib.versionOlder crystal.version "1.0";
+  };
+}