1 files changed, 9 insertions, 0 deletions
diff --git a/pkgs/development/compilers/ghc/8.10.7.nix b/pkgs/development/compilers/ghc/8.10.7.nix
index d21ac4411f15f..a8f05d6f15c1d 100644
--- a/pkgs/development/compilers/ghc/8.10.7.nix
+++ b/pkgs/development/compilers/ghc/8.10.7.nix
@@ -212,6 +212,15 @@ stdenv.mkDerivation (rec {
       url = "https://gitlab.haskell.org/ghc/ghc/-/commit/97d0b0a367e4c6a52a17c3299439ac7de129da24.patch";
       sha256 = "0r4zjj0bv1x1m2dgxp3adsf2xkr94fjnyj1igsivd9ilbs5ja0b5";
     })
+  ] ++ lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
+
+    # Prevent the paths module from emitting symbols that we don't use
+    # when building with separate outputs.
+    #
+    # These cause problems as they're not eliminated by GHC's dead code
+    # elimination on aarch64-darwin. (see
+    # https://github.com/NixOS/nixpkgs/issues/140774 for details).
+    ./cabal-paths.patch
   ];
 
   postPatch = "patchShebangs .";