iserv-proxy missing for GHC 9.4.3

[TeofilC]

When trying to build the roots attribute for a ghc943 project I'm getting an error that iserv-proxy is missing:

/nix/store/kkr6573gzfhakba4av3bd6nlg81nqqax-source/overlays/haskell.nix:929:22:

          928|             # in haskell.nix itself.
          929|             inherit (final.ghc-extra-packages."${compiler-nix-name}"
             |                      ^
          930|               .iserv-proxy.components.exes) iserv-proxy;

       … while evaluating the attribute 'iserv-proxy'

[peterbecich]

I think this does not occur with ghc925

[peterbecich]

May be relevant:

haskell.nix/overlays/ghc-packages.nix

Lines 75 to 81 in 4d64854

	} // final.lib.optionalAttrs (builtins.compareVersions ghcVersion "9.4" < 0) {
	# The version of `Win32` that comes with ghc 9.4 (2.12.0.0) is older
	# than the one in hackage. Including it causes `cabal configure` to fail.
	Win32 = "libraries/Win32";
	# As of GHC 9.4 this has been split out of the GHC repo and
	# is now in the iserv-proxy flake input
	iserv-proxy = "utils/iserv-proxy";

[TeofilC]

I think this is fixed on master