From 6f1a319c4567d1c4273f38949ba65586585f2144 Mon Sep 17 00:00:00 2001
From: sternenseemann <0rpkxez4ksa01gb3typccl0i@systemli.org>
Date: Wed, 1 Sep 2021 14:21:08 +0200
Subject: [PATCH] haskell.compiler.ghc921: mark as broken on darwin

Seems like there is either a fundamental issue with how our derivation
works or an upstream bug prevent GHC 9.2.1 from compiling on macOS using
nixpkgs. Until someone fixes that or rc2 comes around, we can save the
build time.
---
 pkgs/development/compilers/ghc/9.2.1.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/ghc/9.2.1.nix b/pkgs/development/compilers/ghc/9.2.1.nix
index 66cc4d6c322e..4664ed834f57 100644
--- a/pkgs/development/compilers/ghc/9.2.1.nix
+++ b/pkgs/development/compilers/ghc/9.2.1.nix
@@ -307,7 +307,10 @@ stdenv.mkDerivation (rec {
 
     # integer-simple builds are broken when GHC links against musl.
     # See https://github.com/NixOS/nixpkgs/pull/129606#issuecomment-881323743.
-    broken = enableIntegerSimple && hostPlatform.isMusl;
+    # Linker failure on macOS:
+    # https://gitlab.haskell.org/ghc/ghc/-/issues/19950#note_373726
+    broken = (enableIntegerSimple && hostPlatform.isMusl)
+      || stdenv.hostPlatform.isDarwin;
   };
 
 } // lib.optionalAttrs targetPlatform.useAndroidPrebuilt {