openttd-grfcodec: init at 6.0.6+git20210310

N.b. 6.0.6 release version is ~5 years old now, and doesn't build under gcc10

pkgs/games/openttd/grfcodec.nix

@@ -0,0 +1,28 @@
+{ stdenv, lib, fetchFromGitHub, boost, cmake, git }:
+
+stdenv.mkDerivation rec {
+  pname = "openttd-grfcodec";
+  version = "unstable-2021-03-10";
+
+  src = fetchFromGitHub {
+    owner = "OpenTTD";
+    repo = "grfcodec";
+    rev = "045774dee7cab1a618a3e0d9b39bff78a12b6efa";
+    sha256 = "0b4xnnkqc01d3r834lhkq744ymar6c8iyxk51wc4c7hvz0vp9vmy";
+  };
+
+  buildInputs = [boost];
+  nativeBuildInputs = [cmake git];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp -a grfcodec grfid grfstrip nforenum $out/bin/
+  '';
+
+  meta = with lib; {
+    description = "Low-level (dis)assembler and linter for OpenTTD GRF files";
+    homepage    = "http://openttd.org/";
+    license     = licenses.gpl2;
+    maintainers = with maintainers; [ ToxicFrog ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -28979,6 +28979,7 @@ in
       static = true;
     };
   };
+  openttd-grfcodec = callPackage ../games/openttd/grfcodec.nix {};
 
   opentyrian = callPackage ../games/opentyrian { };