haskellPackages.ghcjs-base: disable support when building outside of js context

pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml

@@ -791,6 +791,7 @@ supported-platforms:
   geomancy:                                     [ platforms.x86 ] # x86 intrinsics
   geomancy-layout:                              [ platforms.x86 ] # x86 intrinsics
   gi-gtkosxapplication:                         [ platforms.darwin ]
+  ghcjs-base:                                   [ javascript-ghcjs ]
   ghcjs-dom-javascript:                         [ javascript-ghcjs ]
   gtk-mac-integration:                          [ platforms.darwin ]
   gtk3-mac-integration:                         [ platforms.darwin ]

pkgs/development/haskell-modules/hackage-packages.nix

@@ -121346,6 +121346,7 @@ self: {
        sha256 = "1cx9jqpbr6b30qckp2zpsfk3swa58snjb79pq0l6485nvrxa9mls";
        description = "base library for GHCJS";
        license = lib.licenses.mit;
+       platforms = [ "javascript-ghcjs" ];
        maintainers = [ lib.maintainers.alexfmpe ];
      }) {};