gfWithPackages: init

pkgs/gf-rgl/default.nix

@@ -0,0 +1,25 @@
+{ stdenv
+, ghc
+, gf-core
+, fetchFromGitHub
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  name = "gf-rgl";
+  version = "20250812";
+  src = fetchFromGitHub {
+    owner = "GrammaticalFramework";
+    repo = "gf-rgl";
+    tag = finalAttrs.version;
+    hash = "sha256-rqN5MV/XxChXC+Vs4aLIhRtyPQZNk0LQZ2TCdbd6wUw=";
+  };
+  buildInputs = [ ghc gf-core ];
+  LC_ALL = "C.UTF-8";
+  buildPhase = ''
+    runghc Setup.hs build
+  '';
+  installPhase = ''
+    mkdir -p $out/share/gf/lib
+    runghc Setup.hs copy --dest=$out/share/gf/lib
+  '';
+})

pkgs/gfWithPackages/default.nix

@@ -0,0 +1,22 @@
+{ lib
+, stdenv
+, gf-core
+, makeWrapper
+, runCommandLocal
+}:
+
+packages:
+
+let
+  opts = {
+    passthru = {
+      preferLocalBuild = true;
+      inherit (gf-core) version meta;
+    };
+  };
+  paths = lib.makeSearchPath "share/gf/lib" packages;
+in runCommandLocal "gf-with-rgl" opts ''
+  . ${makeWrapper}/nix-support/setup-hook
+  makeWrapper ${gf-core}/bin/gf $out/bin/gf \
+    --prefix GF_LIB_PATH : ${paths}
+''