haskell.compiler.ghcHEAD: 9.15.20250811 -> 9.15.20251225 (#474783)

pkgs/development/compilers/ghc/head.nix

@@ -1,5 +1,5 @@
 import ./common-hadrian.nix {
-  version = "9.15.20250811";
-  rev = "c8d76a2994b8620c54adc2069f4728135d6b5059";
-  sha256 = "001rf9z5a1v2xpm9qjzz2p966m5bxmqcnykq0xgb3qf40vi9rnh4";
+  version = "9.15.20251225";
+  rev = "a3afae0c85fa57479378a5df5bbde2e3a8da8a06";
+  sha256 = "sha256-inZFFKnCb8C7RTlKP2bnHOLfc1GveGi6Wy0uAaLv1Kk=";
 }

pkgs/development/haskell-modules/configuration-ghc-9.16.x.nix

@@ -45,6 +45,8 @@ self: super: {
   stm = null;
   system-cxx-std-lib = null;
   template-haskell = null;
+  template-haskell-lift = null;
+  template-haskell-quasiquoter = null;
   terminfo = null;
   text = null;
   time = null;

pkgs/top-level/haskell-packages.nix

@@ -190,15 +190,8 @@ in
       ghc914 = compiler.ghc9141;
       ghcHEAD = callPackage ../development/compilers/ghc/head.nix {
         bootPkgs =
-          if
-            stdenv.buildPlatform.isPower64
-            && stdenv.buildPlatform.isBigEndian
-            && pkgs.stdenv.hostPlatform.isAbiElfv1
-          then
-            # No bindist, using older source-built GHC
-            bb.packages.ghc910
-          else
-            bb.packages.ghc984Binary;
+          # No suitable bindist packaged yet
+          bb.packages.ghc910;
         inherit (buildPackages.python3Packages) sphinx;
         inherit (buildPackages.darwin) xattr autoSignDarwinBinariesHook;
         inherit buildTargetLlvmPackages llvmPackages;