haskell.packages.ghc94.gtk2hs-buildtools: gtk2hs setup hook broken for ghc-9.4.4

See https://github.com/gtk2hs/gtk2hs/issues/323 for details.

pkgs/development/haskell-modules/configuration-ghc-9.4.x.nix

@@ -208,4 +208,9 @@ in {
   # the GHC 9.6 configuration may need similar overrides eventually.
   X11-xft = __CabalEagerPkgConfigWorkaround super.X11-xft;
 
+  # The gtk2hs setup hook provided by this package lacks the ppOrdering field that
+  # recent versions of Cabal require. This leads to builds like cairo and glib
+  # failing during the Setup.hs phase: https://github.com/gtk2hs/gtk2hs/issues/323.
+  gtk2hs-buildtools = appendPatch ./patches/gtk2hs-buildtools-fix-ghc-9.4.x.patch super.gtk2hs-buildtools;
+
 }

pkgs/development/haskell-modules/lib/compose.nix

@@ -494,7 +494,7 @@ rec {
                   if !lib.isDerivation drv
                   then [ ]
                   else [ { key = drv.outPath; val = drv; } ]
-                ) val.buildInputs or [ ];
+                ) (val.buildInputs or [ ] ++ val.propagatedBuildInputs or [ ]);
           }
         );
     in

pkgs/development/haskell-modules/patches/gtk2hs-buildtools-fix-ghc-9.4.x.patch

@@ -0,0 +1,12 @@
+diff --git a/src/Gtk2HsSetup.hs b/src/Gtk2HsSetup.hs
+index 598048f..b652b76 100644
+--- a/src/Gtk2HsSetup.hs
++++ b/src/Gtk2HsSetup.hs
+@@ -300,6 +300,7 @@ ourC2hs :: BuildInfo -> LocalBuildInfo -> PreProcessor
+ ourC2hs bi lbi = PreProcessor {
+ #endif
+   platformIndependent = False,
++  ppOrdering = (\ _ _ ms -> return ms),
+   runPreProcessor = runC2HS bi lbi
+ }
+