Update flake.lock

Fixes:
- bump hls@2.9
- python build failures for the -env.
- use unsafeDiscardOutputDependency:
  Querying the .drvPath causes nix to try and build
  arp-util, python3.11-setuptools, setuptools-build-hook, scons, serf, llvm, clang, libredirect, subversion, and openssh.
- Windows cross builds
- Static ruby
- refactor: Explicitly exclude curl options
- postgresql static

cross-windows.nix

@@ -4,7 +4,12 @@ let tool-version-map = import ./tool-map.nix;
     cabal-install = pkgs.pkgsBuildBuild.haskell-nix.nix-tools-unchecked.exes.cabal;
     # add a trace helper. This will trace a message about disabling a component despite requesting it, if it's not supported in that compiler.
     compiler-not-in = compiler-list: name: (if __elem compiler-nix-name compiler-list then __trace "No ${name}. Not yet compatible with ${compiler-nix-name}" false else true);
-
+    # Exclude zstd support for now, since it's currently broken on mingw32W64:
+    # https://github.com/NixOS/nixpkgs/issues/333338
+    curl = pkgs.curl.override ({
+      zstdSupport = false;
+      pslSupport = false;
+    });
     inherit (pkgs.haskell-nix.iserv-proxy-exes.${compiler-nix-name}) iserv-proxy iserv-proxy-interpreter;
 
     dllPkgs = [
@@ -56,7 +61,7 @@ let tool-version-map = import ./tool-map.nix;
     # A cabal-install wrapper that sets the appropriate static flags
     wrapped-cabal = pkgs.pkgsBuildBuild.writeShellApplication {
         name = "cabal";
-        runtimeInputs = [ cabal-install pkgs.curl ];
+        runtimeInputs = [ cabal-install curl ];
         text = ''
         # We do not want to quote NIX_CABAL_FLAGS
         # it will leave an empty argument, if they are empty.

flake.nix

@@ -38,6 +38,30 @@
           cbor-diag = final.callPackage ./pkgs/cbor-diag { };
           cddl = final.callPackage ./pkgs/cddl { };
          });
+
+         musl = (final: prev: prev.lib.optionalAttrs prev.stdenv.hostPlatform.isMusl {
+           # Fix the following Ruby cross build error:
+           #
+           #     error: output '/nix/store/6hyyk9wnnxpd5rsr6ivc0s8l1lgvsjrb-ruby-x86_64-unknown-linux-musl-3.3.4'
+           #     is not allowed to refer to the following paths:
+           #             /nix/store/c77wdd4fb0llq37bpmfr73m7s7r1j068-ruby-3.3.4
+           #
+           # See https://github.com/NixOS/nixpkgs/issues/347758
+           ruby = prev.ruby.overrideAttrs (old: {
+             postInstall = old.postInstall + ''
+               find $out/${old.passthru.gemPath} -name exts.mk -delete
+             '';
+           });
+
+           # Tests on static postgresql are failing with:
+           #
+           #    FATAL:  could not load library "/build/postgresql-16.4/.../lib/dict_snowball.so":
+           #    Error relocating /build/postgresql-16.4/tmp_install/nix/store/.../lib/dict_snowball.so:
+           #    pg_any_to_server: symbol not found
+           postgresql = prev.postgresql.overrideAttrs (_: {
+             doCheck = false;
+           });
+         });
        };
        supportedSystems = [
             "x86_64-linux"
@@ -187,12 +211,15 @@
             } "touch  $out";
           } // (pkgs.lib.mapAttrs' (name: drv:
             pkgs.lib.nameValuePair "${name}-env" (
+            # We need to use unsafeDiscardOutputDependency here, as it will otherwise
+            # pull in a bunch of dependenceis we don't care about at all from the .drvPath
+            # query.
             let env = pkgs.runCommand "${name}-env.sh" {
                 requiredSystemFeatures = [ "recursive-nix" ];
                 nativeBuildInputs = [ pkgs.nix ];
               } ''
               nix --offline --extra-experimental-features "nix-command flakes" \
-                print-dev-env ${drv.drvPath} >> $out
+                print-dev-env '${builtins.unsafeDiscardOutputDependency drv.drvPath}^*' >> $out
             '';
             # this needs to be linux.  It would be great if we could have this
             # eval platform agnostic, but flakes don't permit this.  A the
@@ -221,7 +248,7 @@
                 license = pkgs.lib.licenses.asl20;
                 platforms = pkgs.lib.platforms.unix;
               };
-            })) devShellsWithEvalOnLinux) // {
+            })) devShells) // {
           };
         packages.cabalProjectLocal.static        = (import ./quirks.nix { pkgs = static-pkgs; static = true; }).template;
         packages.cabalProjectLocal.cross-js      = (import ./quirks.nix { pkgs = js-pkgs;                    }).template;

tool-map.nix

@@ -37,19 +37,11 @@ compiler-nix-name: tool: {
       # Use the github source of HLS that is tested with haskell.nix CI
       src = { "ghc8107" = pkgs.haskell-nix.sources."hls-2.2";
               "ghc902"  = pkgs.haskell-nix.sources."hls-2.4";
-            }.${compiler-nix-name} or pkgs.haskell-nix.sources."hls-2.6";
+            }.${compiler-nix-name} or pkgs.haskell-nix.sources."hls-2.9";
       # `tool` normally ignores the `cabal.project` (if there is one in the hackage source).
       # We need to use the github one (since it has settings to make hls build).
       cabalProject = __readFile (src + "/cabal.project");
       configureArgs = "--disable-benchmarks --disable-tests";
-      modules = [{
-          packages.ghcide.patches =
-              (if compiler-nix-name != "ghc8107" && compiler-nix-name != "ghc902" then [
-                  # The following patch only works with hls-2.6 ...
-                  # https://github.com/haskell/haskell-language-server/issues/4046#issuecomment-1926242056
-                  ./extra/ghcide-workaround.diff
-              ] else []);
-      }];
   };
   happy = { version = "1.20.1.1"; inherit cabalProjectLocal; };
   alex = { version = "3.2.7.3"; inherit cabalProjectLocal; };