Bump cabal to 3.16.0.0 and build it with ghc 9.12.2

Author: pranaysashank

extra-hackages/default.nix

@@ -0,0 +1,9 @@
+with builtins; mapAttrs (_: mapAttrs (_: data: rec {
+ inherit (data) sha256;
+ revisions = data.revisions // {
+  default = revisions."${data.revisions.default}";
+ };
+})) {
+  "ghc-internal" = import ./nix/ghc-internal.nix;
+
+}

extra-hackages/hackage/ghc-internal-9.1202.0-r0-60e5794fc814deae622641b9982cd9c9db929b6ea4f778fc70fbc10b572ad8df.nix

@@ -0,0 +1,54 @@
+{ system
+  , compiler
+  , flags
+  , pkgs
+  , hsPkgs
+  , pkgconfPkgs
+  , errorHandler
+  , config
+  , ... }:
+  {
+    flags = {};
+    package = {
+      specVersion = "3.0";
+      identifier = { name = "ghc-internal"; version = "9.1202.0"; };
+      license = "BSD-3-Clause";
+      copyright = "";
+      maintainer = "The GHC Developers <[email protected]>";
+      author = "";
+      homepage = "";
+      url = "";
+      synopsis = "Basic libraries";
+      description = "This package contains the implementation of GHC's standard libraries and is\nnot intended for use by end-users.\n.\nUsers should instead use either the @base@ or @ghc-experimental@ packages";
+      buildType = "Configure";
+    };
+    components = {
+      "library" = {
+        depends = [
+          (hsPkgs."rts" or (errorHandler.buildDepError "rts"))
+          (hsPkgs."ghc-prim" or (errorHandler.buildDepError "ghc-prim"))
+          (hsPkgs."ghc-bignum" or (errorHandler.buildDepError "ghc-bignum"))
+        ];
+        libs = pkgs.lib.optionals (system.isWindows) [
+          (pkgs."wsock32" or (errorHandler.sysDepError "wsock32"))
+          (pkgs."user32" or (errorHandler.sysDepError "user32"))
+          (pkgs."shell32" or (errorHandler.sysDepError "shell32"))
+          (pkgs."mingw32" or (errorHandler.sysDepError "mingw32"))
+          (pkgs."kernel32" or (errorHandler.sysDepError "kernel32"))
+          (pkgs."advapi32" or (errorHandler.sysDepError "advapi32"))
+          (pkgs."mingwex" or (errorHandler.sysDepError "mingwex"))
+          (pkgs."ws2_32" or (errorHandler.sysDepError "ws2_32"))
+          (pkgs."shlwapi" or (errorHandler.sysDepError "shlwapi"))
+          (pkgs."ole32" or (errorHandler.sysDepError "ole32"))
+          (pkgs."rpcrt4" or (errorHandler.sysDepError "rpcrt4"))
+          (pkgs."ntdll" or (errorHandler.sysDepError "ntdll"))
+        ];
+        buildable = true;
+      };
+    };
+  } // {
+    src = pkgs.lib.mkDefault (pkgs.fetchurl {
+      url = "https://pranaysashank.com/ghc-91202/package/ghc-internal-9.1202.0.tar.gz";
+      sha256 = config.sha256;
+    });
+  }

extra-hackages/nix/ghc-internal.nix

@@ -0,0 +1,14 @@
+{
+  "9.1202.0" = {
+    sha256 = "e799ce891e53432fccc9235a433372454dd910fbf3698ff7e8dce2c201f9e616";
+    revisions = {
+      r0 = {
+        nix = import ../hackage/ghc-internal-9.1202.0-r0-60e5794fc814deae622641b9982cd9c9db929b6ea4f778fc70fbc10b572ad8df.nix;
+        revNum = 0;
+        revTimestamp = "2025-08-31T08:25:08Z";
+        sha256 = "60e5794fc814deae622641b9982cd9c9db929b6ea4f778fc70fbc10b572ad8df";
+      };
+      default = "r0";
+    };
+  };
+}

flake.lock

@@ -79,7 +79,7 @@
         builtins.mapAttrs (name: exe: {
           type = "app";
           program = exe + "/bin/${name}";
-        }) pkgs.haskell-nix.nix-tools.exes
+        }) (pkgs.haskell-nix.nix-tools.exes // { "cabal" = pkgs.haskell-nix.bootstrap-cabal-install; })
       );
     };