haskellPackages.Cabal{,-syntax}_3_8_1_0: keep

Latest version is 3.10.1.0 now, but let's keep 3.8 around (for now at
least). We will likely soon have moved a lot of stuff over to 3.10
though.

pkgs/development/haskell-modules/configuration-common.nix

@@ -20,6 +20,14 @@ with haskellLib;
 
 self: super: {
 
+  # Make sure that Cabal 3.8.* can be built as-is
+  Cabal_3_8_1_0 = doDistribute (super.Cabal_3_8_1_0.override ({
+    Cabal-syntax = self.Cabal-syntax_3_8_1_0;
+  } // lib.optionalAttrs (lib.versionOlder self.ghc.version "9.2.5") {
+    # Use process core package when possible
+    process = self.process_1_6_17_0;
+  }));
+
   # Make sure that Cabal 3.10.* can be built as-is
   Cabal_3_10_1_0 = doDistribute (super.Cabal_3_10_1_0.override ({
     Cabal-syntax = self.Cabal-syntax_3_10_1_0;

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

@@ -48,9 +48,11 @@ default-package-overrides:
 extra-packages:
   - Cabal == 2.2.*                      # required for jailbreak-cabal etc.
   - Cabal == 2.4.*                      # required for cabal-install etc.
-  - Cabal == 3.2.*                      # required for cabal-install etc.
+  - Cabal == 3.2.*                      # required for cabal2spec
   - Cabal == 3.4.*                      # required for cabal-install etc.
-  - Cabal == 3.6.*                      # required for cabal-install-parsers etc.
+  - Cabal == 3.6.*
+  - Cabal-syntax == 3.8.*               # required for cabal-install{,-parsers}
+  - Cabal == 3.8.*                      # required for cabal-install{,-parsers}
   - Diff < 0.4                          # required by liquidhaskell-0.8.10.2: https://github.com/ucsd-progsys/liquidhaskell/issues/1729
   - aeson < 2                           # required by pantry-0.5.2
   - apply-refact == 0.9.*               # 2022-12-12: needed for GHC < 9.2

pkgs/development/haskell-modules/configuration-nix.nix

@@ -1052,14 +1052,6 @@ self: super: builtins.intersectAttrs super {
   # Wants to execute cabal-install to (re-)build itself
   hint = dontCheck super.hint;
 
-  # Make sure that Cabal 3.8.* can be built as-is
-  Cabal_3_8_1_0 = doDistribute (super.Cabal_3_8_1_0.override ({
-    Cabal-syntax = self.Cabal-syntax_3_8_1_0;
-  } // lib.optionalAttrs (lib.versionOlder self.ghc.version "9.2.5") {
-    # Use process core package when possible
-    process = self.process_1_6_17_0;
-  }));
-
   # cabal-install switched to build type simple in 3.2.0.0
   # as a result, the cabal(1) man page is no longer installed
   # automatically. Instead we need to use the `cabal man`

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

@@ -2903,6 +2903,28 @@ self: {
        hydraPlatforms = lib.platforms.none;
      }) {};
 
+  "Cabal_3_8_1_0" = callPackage
+    ({ mkDerivation, array, base, bytestring, Cabal-syntax, containers
+     , deepseq, directory, filepath, mtl, parsec, pretty, process, text
+     , time, transformers, unix
+     }:
+     mkDerivation {
+       pname = "Cabal";
+       version = "3.8.1.0";
+       sha256 = "0236fddzhalsr2gjbjsk92rgh8866fks28r04g8fbmzkqbkcnr3l";
+       revision = "2";
+       editedCabalFile = "179y365wh9zgzkcn4n6m4vfsfy6vk4apajv8jpys057z3a71s4kp";
+       setupHaskellDepends = [ mtl parsec ];
+       libraryHaskellDepends = [
+         array base bytestring Cabal-syntax containers deepseq directory
+         filepath mtl parsec pretty process text time transformers unix
+       ];
+       doCheck = false;
+       description = "A framework for packaging Haskell software";
+       license = lib.licenses.bsd3;
+       hydraPlatforms = lib.platforms.none;
+     }) {};
+
   "Cabal_3_10_1_0" = callPackage
     ({ mkDerivation, array, base, bytestring, Cabal-syntax, containers
      , deepseq, directory, filepath, mtl, parsec, pretty, process, text
@@ -2961,6 +2983,26 @@ self: {
        license = lib.licenses.bsd3;
      }) {};
 
+  "Cabal-syntax_3_8_1_0" = callPackage
+    ({ mkDerivation, array, base, binary, bytestring, containers
+     , deepseq, directory, filepath, mtl, parsec, pretty, text, time
+     , transformers, unix
+     }:
+     mkDerivation {
+       pname = "Cabal-syntax";
+       version = "3.8.1.0";
+       sha256 = "03yfk3b2sjmqpxmvx3mj185nifiaqapvc8hmbx4825z0kyqxvs07";
+       revision = "3";
+       editedCabalFile = "14zm8h7sfawysr9g37in8by8aj1p87fywj83hmshp8n6lrxr6bgd";
+       libraryHaskellDepends = [
+         array base binary bytestring containers deepseq directory filepath
+         mtl parsec pretty text time transformers unix
+       ];
+       description = "A library for working with .cabal files";
+       license = lib.licenses.bsd3;
+       hydraPlatforms = lib.platforms.none;
+     }) {};
+
   "Cabal-syntax_3_10_1_0" = callPackage
     ({ mkDerivation, array, base, binary, bytestring, containers
      , deepseq, directory, filepath, mtl, parsec, pretty, text, time