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/servers/http/pomerium/default.nix

@@ -0,0 +1,91 @@
+{ buildGoModule
+, fetchFromGitHub
+, lib
+, envoy
+, zip
+, nixosTests
+, pomerium-cli
+}:
+
+let
+  inherit (lib) concatStringsSep concatMap id mapAttrsToList;
+in
+buildGoModule rec {
+  pname = "pomerium";
+  version = "0.17.1";
+  src = fetchFromGitHub {
+    owner = "pomerium";
+    repo = "pomerium";
+    rev = "v${version}";
+    hash = "sha256:0b9mdzyfn7c6gwgslqk787yyrrcmdjf3282vx2zvhcr3psz0xqwx";
+  };
+
+  vendorSha256 = "sha256:1cq4m5a7z64yg3v1c68d15ilw78il6p53vaqzxgn338zjggr3kig";
+  subPackages = [
+    "cmd/pomerium"
+  ];
+
+  ldflags = let
+    # Set a variety of useful meta variables for stamping the build with.
+    setVars = {
+      "github.com/pomerium/pomerium/internal/version" = {
+        Version = "v${version}";
+        BuildMeta = "nixpkgs";
+        ProjectName = "pomerium";
+        ProjectURL = "github.com/pomerium/pomerium";
+      };
+      "github.com/pomerium/pomerium/internal/envoy" = {
+        OverrideEnvoyPath = "${envoy}/bin/envoy";
+      };
+    };
+    concatStringsSpace = list: concatStringsSep " " list;
+    mapAttrsToFlatList = fn: list: concatMap id (mapAttrsToList fn list);
+    varFlags = concatStringsSpace (
+      mapAttrsToFlatList (package: packageVars:
+        mapAttrsToList (variable: value:
+          "-X ${package}.${variable}=${value}"
+        ) packageVars
+      ) setVars);
+  in [
+    "${varFlags}"
+  ];
+
+  preBuild = ''
+    # Replace embedded envoy with nothing.
+    # We set OverrideEnvoyPath above, so rawBinary should never get looked at
+    # but we still need to set a checksum/version.
+    rm internal/envoy/files/files_{darwin,linux}*.go
+    cat <<EOF >internal/envoy/files/files_generic.go
+    package files
+
+    import _ "embed" // embed
+
+    var rawBinary []byte
+
+    //go:embed envoy.sha256
+    var rawChecksum string
+
+    //go:embed envoy.version
+    var rawVersion string
+    EOF
+    sha256sum '${envoy}/bin/envoy' > internal/envoy/files/envoy.sha256
+    echo '${envoy.version}' > internal/envoy/files/envoy.version
+  '';
+
+  installPhase = ''
+    install -Dm0755 $GOPATH/bin/pomerium $out/bin/pomerium
+  '';
+
+  passthru.tests = {
+    inherit (nixosTests) pomerium;
+    inherit pomerium-cli;
+  };
+
+  meta = with lib; {
+    homepage = "https://pomerium.io";
+    description = "Authenticating reverse proxy";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ lukegb ];
+    platforms = [ "x86_64-linux" "aarch64-linux" ];
+  };
+}