haskellPackages.terminfo: not a core pkg if cross compiling

GHC's cross build flavours disable the terminfo package, so it will
never be included if we are cross-compiling – setting it to null thus
breaks all builds depending on the package.

To fix this problem, we use the versioned attribute generated by
hackage2nix, just like we do for xhtml.

Closes #182785.

1 files changed, 2 insertions, 1 deletions

diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
index a6fad258cf85..8174307b7e6c 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
@@ -37,7 +37,8 @@ self: super: {
   rts = null;
   stm = null;
   template-haskell = null;
-  terminfo = null;
+  # GHC only builds terminfo if it is a native compiler
+  terminfo = if pkgs.stdenv.hostPlatform == pkgs.stdenv.buildPlatform then null else self.terminfo_0_4_1_5;
   text = null;
   time = null;
   transformers = null;